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1.
Arq. bras. med. vet. zootec. (Online) ; 73(1): 162-168, Jan.-Feb. 2021. tab, graf, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1153064

ABSTRACT

Aedes aegypti is the vector of several viral diseases. The main way to control these diseases is to fight the vector. Thus, it is necessary to breed mosquitoes in the laboratory in order to develop strategies to control these insects. In laboratories, different carbohydrates are used for feeding mosquitoes. The aim of this study is to evaluate the longevity and the weight of Ae. aegypti fed with different carbohydrates diets. As methods, 120 mosquitoes were distributed in insectaries and each group received a different diet, based on honey, dextrose or maltodextrin. To assess the longevity, survival analysis was performed using the Long Rank test and chi square test. To assess the weight, the dead insects were frozen and weighed at the end of the experiment. As results it was observed that mosquitoes fed with the honey, maltodextrin and dextrose diet lived on average 33, 35 and 47 days respectively. When weight was assessed, mosquitoes fed with honey weighed 125 ± (35.3) µg, while those fed with dextrose and maltodextrin weighed 225 ± (35.3) µg and 275 ± (35.3) µg respectively. The results show that the intake of dextrose and maltodextrin by Ae. aegypti adults increases their survival and their weight.(AU)


O Aedes aegypti é vetor de várias doenças virais. A principal maneira de controlar essas doenças é combatendo o seu vetor. Nesse sentido, é necessário criar esses mosquitos em laboratório, visando desenvolver estratégias de controle. Nos laboratórios, diferentes carboidratos são utilizados na alimentação de mosquitos. O objetivo deste estudo é avaliar longevidade e peso de Ae. aegypti alimentados com diferentes fontes de carboidratos. Como método, distribuíram-se 120 mosquitos insetários. Cada grupo recebeu uma dieta diferente à base de mel, dextrose ou maltodextrina. Para avaliar a longevidade, a análise de sobrevida foi realizada pelo teste de Logrank e pelo teste de qui quadrado. Para avaliar o peso, os insetos mortos foram congelados e pesados ​​no final do experimento. Como resultado, observou-se que os mosquitos alimentados com a dieta à base de mel, maltodextrina e dextrose viveram em média 33, 35 e 47 dias, respectivamente. Com relação ao peso, os mosquitos alimentados com mel pesavam 125 ± (35,3)µg, enquanto os alimentados com dextrose e maltodextrina pesavam 225 ± (35,3)µg e 275 ± (35,3)µg, respectivamente. Os resultados mostram que a ingestão de dieta à base de dextrose e maltodextrina por Ae. aegypti adultos aumenta sua sobrevivência e seu peso.(AU)


Subject(s)
Animals , Aedes/growth & development , Aedes/metabolism , Dextrins/administration & dosage , Diet, Carbohydrate Loading/methods , Glucose/administration & dosage , Honey , Weight Gain , Survival Analysis
2.
Rev. chil. endocrinol. diabetes ; 14(4): 159-165, 2021. tab, ilus
Article in Spanish | LILACS | ID: biblio-1344801

ABSTRACT

La diabetes Tipo 1 (DT1) es una compleja enfermedad autoinmune con una etiología aún desconocida. La vitamina D ha sido ampliamente estudiada debido a su potencial terapéutico en los potenciales nuevos casos de DT1. Por otra parte, los microARNs (miRs) han sido propuestos como posibles biomarcadores en diversos procesos biológicos como en la apoptosis e inflamación. El objetivo de este estudio fue evaluar el efecto de la suplementación con vitamina D sobre el perfil de expresión del miR-21 y marcadores de apoptosis tales como: BCL2, STAT3, TIPE2 y DAXX, en células mononucleares periféricas provenientes de pacientes con DT1 y sujetos controles. RESULTADOS: El perfil de expresión de miR-21 se encontró disminuido en los pacientes con DT1 en comparación con los controles. La expresión relativa de BCL2 se encontró aumentada en controles al comparar con pacientes DT1 en todas las condiciones experimentales. La expresión relativa de DAXX mostró un perfil de expresión diferencial al comparar pacientes con DT1 versus controles (p=0.006). CONCLUSIÓN: El estímulo con vitamina D parece tener un posible efecto regulador sobre los genes BCL2 y DAXX.


Type 1 diabetes (T1D) is a complex chronic autoimmune disease. Vitamin D has been one of the most studied therapeutic potential outbreaks related to T1D. Specific miRNAs have been proposed as potential biomarkers in several biological processes as apoptosis and inflammation. The aim of this study was to evaluate the effect of vitamin D on the expression profiles of miR-21 and apoptotic markers BCL2, STAT3, TIPE2 and DAXX, in PBMCs from T1D patients and control subjects. RESULTS: miR-21 expression was increased in controls regarding T1D patients. BCL2 was increased in controls compared to T1D patients in all experimental conditions. DAXX showed different expression patterns between T1D patients and controls (p=0.006). CONCLUSION: Vitamin D showed a possible regulation effect on apoptosis markers mainly through the regulation of BCL2 and DAXX


Subject(s)
Humans , Child , Adolescent , Vitamin D/administration & dosage , Apoptosis , Diabetes Mellitus, Type 1/metabolism , Vitamin D/metabolism , Biomarkers , Molecular Chaperones/drug effects , Molecular Chaperones/genetics , Molecular Chaperones/metabolism , Proto-Oncogene Proteins c-bcl-2/drug effects , Proto-Oncogene Proteins c-bcl-2/genetics , Proto-Oncogene Proteins c-bcl-2/metabolism , MicroRNAs/drug effects , MicroRNAs/genetics , MicroRNAs/metabolism , STAT3 Transcription Factor/drug effects , STAT3 Transcription Factor/genetics , STAT3 Transcription Factor/metabolism , Co-Repressor Proteins/drug effects , Co-Repressor Proteins/genetics , Co-Repressor Proteins/metabolism , Glucose/administration & dosage
4.
Braz. j. med. biol. res ; 52(2): e7637, 2019. tab, graf
Article in English | LILACS | ID: biblio-984028

ABSTRACT

Non-diabetic individuals use hormones like insulin to improve muscle strength and performance. However, as insulin also leads the liver and the adipose tissue to an anabolic state, the purpose of this study was to investigate the effects of insulin on liver metabolism in trained non-diabetic Swiss mice. The mice were divided into four groups: sedentary treated with saline (SS) or insulin (SI) and trained treated with saline (TS) or insulin (TI). Training was made in a vertical stair, at 90% of the maximum load, three times per week. Insulin (0.3 U/kg body weight) or saline were given intraperitoneally five times per week. After eight weeks, tissue and blood were collected and in situ liver perfusion with glycerol+lactate or alanine+glutamine (4 mM each) was carried out. The trained animals increased their muscle strength (+100%) and decreased body weight gain (-11%), subcutaneous fat (-42%), mesenteric fat (-45%), and peritoneal adipocyte size (-33%) compared with the sedentary groups. Insulin prevented the adipose effects of training (TI). The gastrocnemius muscle had greater density of muscle fibers (+60%) and less connective tissue in the trained groups. Liver glycogen was increased by insulin (SI +40% and TI +117%), as well as liver basal glucose release (TI +40%). Lactate and pyruvate release were reduced to a half by training. The greater gluconeogenesis from alanine+glutamine induced by training (TS +50%) was reversed by insulin (TI). Insulin administration had no additional effect on muscle strength and reversed some of the lipolytic and gluconeogenic effects of the resistance training. Therefore, insulin administration does not complement training in improving liver glucose metabolism.


Subject(s)
Animals , Male , Rabbits , Physical Conditioning, Animal/physiology , Muscle Strength , Glucose/administration & dosage , Glucose/adverse effects , Liver/drug effects , Exercise Test , Resistance Training , Glucose/metabolism , Liver/metabolism
5.
Rev. bras. anestesiol ; 66(4): 341-345, tab, graf
Article in English | LILACS | ID: lil-787625

ABSTRACT

Abstract Background and objectives: A high sodium concentration is known to antagonize local anesthetics when infiltrated around neural tissue. Thus, we hypothesized that the onset time for sensory and motor blockade, in supraclavicular brachial plexus block using ropivacaine diluted with dextrose would be shorter than with saline. Methods: Patients scheduled for upper limb surgery were randomized to receive ultrasound guided supraclavicular brachial plexus block with 0.5% ropivacaine. Evaluation of sensory and motor blockade was performed every 5 min for 60 min. Patients were followed-up on postoperative day 1, and between days 7 and 10 for the presence of any complications. Twenty-five patients in each group were analyzed. Results: Mean time for onset of analgesia for the dextrose group was 37.6 ± 12.9 min while the mean time for the saline group was 45.2 ± 13.9 min with a p-value of 0.05. The effect size was 0.567, which was moderate to large. No major complications were observed. Conclusion: We conclude that there was a decrease in onset time of analgesia when dextrose was used as a diluent instead of saline for ultrasound guided supraclavicular block.


Resumo Justificativa e objetivos: A alta concentração de sódio é conhecida por antagonizar anestésicos locais quando infiltrado em torno de tecido neural. Portanto, a nossa hipótese foi a de que o tempo de início para os bloqueios sensorial e motor, em bloqueio do plexo braquial supraclavicular com ropivacaína diluída com dextrose, seria menor do que com solução salina. Métodos: Os pacientes agendados para cirurgia em membro superior foram randomizados para receber bloqueio do plexo braquial supraclavicular com ropivacaína a 0,5%g guiado por ultrassom. A avaliação dos bloqueios sensorial e motor foi feita a cada cinco minutos durante 60 minutos. Os pacientes foram acompanhados no pós-operatório no primeiro dia e entre os dias 7-10 para presença de qualquer complicação. Foram analisados 25 pacientes em cada grupo. Resultados: A média do tempo para o início da analgesia no grupo dextrose foi de 37,6 ± 12,9 minutos, enquanto que no grupo solução salina foi de 45,2 ± 13,9 minutos, com um valor-p de 0,05. O tamanho do efeito foi 0,567, o que foi de moderado a grande. Complicações maiores não foram observadas. Conclusão: Concluímos que houve uma redução do tempo de início da analgesia quando dextrose em vez de solução salina foi usada como diluente para bloqueio supraclavicular guiado por ultrassom.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Aged , Aged, 80 and over , Young Adult , Brachial Plexus Block/methods , Amides/therapeutic use , Glucose/administration & dosage , Anesthetics, Local/therapeutic use , Time Factors , Sodium Chloride/administration & dosage , Single-Blind Method , Follow-Up Studies , Ropivacaine , Middle Aged
6.
Rev. bras. ter. intensiva ; 28(2): 120-131, tab, graf
Article in Portuguese | LILACS | ID: lil-787737

ABSTRACT

RESUMO Objetivo: Investigar os fatores clínicos e laboratoriais associados com a variação dos níveis séricos de sódio durante terapia renal substitutiva contínua e avaliar se a fórmula de mixagem perfeita pode prever a variação do sódio nas 24 horas. Métodos: A partir de uma base de dados coletada de forma prospectiva, recuperamos e analisamos os dados referentes a 36 sessões de terapia renal substitutiva realizadas em 33 pacientes, nas quais a prescrição de afluentes permaneceu inalterada durante as primeiras 24 horas. Aplicamos um modelo linear misto para investigar os fatores associados com grandes variações dos níveis séricos de sódio (≥ 8mEq/L) e geramos um gráfico de Bland-Altman para avaliar a concordância entre as variações previstas e observadas. Resultados: Nas sessões de terapia renal substitutiva de 24 horas identificamos que SAPS 3 (p = 0,022) e hipernatremia basal (p = 0,023) foram preditores estatisticamente significantes de variações séricas do sódio ≥ 8mEq/L na análise univariada, porém apenas hipernatremia demonstrou uma associação independente (β = 0,429; p < 0,001). A fórmula de mixagem perfeita para previsão do nível de sódio após 24 horas demonstrou baixa concordância com os valores observados. Conclusões: A presença de hipernatremia por ocasião do início da terapia renal substitutiva é um fator importante associado com variações clinicamente significativas dos níveis séricos de sódio. O uso de citrato 4% ou da fórmula A de ácido citrato dextrose 2,2% como anticoagulantes não se associou com variações mais acentuadas dos níveis séricos de sódio. Não foi viável desenvolver uma predição matemática da concentração do sódio após 24 horas.


ABSTRACT Objective: The aim of this study was to investigate the clinical and laboratorial factors associated with serum sodium variation during continuous renal replacement therapy and to assess whether the perfect admixture formula could predict 24-hour sodium variation. Methods: Thirty-six continuous renal replacement therapy sessions of 33 patients, in which the affluent prescription was unchanged during the first 24 hours, were retrieved from a prospective collected database and then analyzed. A mixed linear model was performed to investigate the factors associated with large serum sodium variations (≥ 8mEq/L), and a Bland-Altman plot was generated to assess the agreement between the predicted and observed variations. Results: In continuous renal replacement therapy 24-hour sessions, SAPS 3 (p = 0.022) and baseline hypernatremia (p = 0.023) were statistically significant predictors of serum sodium variations ≥ 8mEq/L in univariate analysis, but only hypernatremia demonstrated an independent association (β = 0.429, p < 0.001). The perfect admixture formula for sodium prediction at 24 hours demonstrated poor agreement with the observed values. Conclusions: Hypernatremia at the time of continuous renal replacement therapy initiation is an important factor associated with clinically significant serum sodium variation. The use of 4% citrate or acid citrate dextrose - formula A 2.2% as anticoagulants was not associated with higher serum sodium variations. A mathematical prediction for the serum sodium concentration after 24 hours was not feasible.


Subject(s)
Humans , Male , Female , Adult , Aged , Aged, 80 and over , Sodium/blood , Renal Replacement Therapy/methods , Hypernatremia/complications , Anticoagulants/administration & dosage , Linear Models , Prospective Studies , Databases, Factual , Citric Acid/administration & dosage , Glucose/administration & dosage , Glucose/analogs & derivatives , Hypernatremia/epidemiology , Middle Aged
7.
Rev. bras. anestesiol ; 66(2): 157-164, Mar.-Apr. 2016. tab, graf
Article in English | LILACS | ID: lil-777411

ABSTRACT

ABSTRACT BACKGROUND AND OBJECTIVES: The aim of the study was to compare the block characteristics and clinical effects of dextrose added to levobupivacaine solutions at different concentrations to provide unilateral spinal anaesthesia in lower extremity surgery. METHODS: This prospective, randomised, double-blind study comprised 75 ASA I-II risk patients for whom unilateral total knee arthroscopy was planned. The patients were assigned to three groups: in Group I, 60 mg dextrose was added to 7.5 mg of 0.5% levobupivacaine, in Group II, 80 mg and in Group III, 100 mg. Spinal anaesthesia was applied to the patient in the lateral decubitus position with the operated side below and the patient was kept in position for 10 min. RESULTS: The time for the sensorial block to achieve T12 level was slower in Group I than in Groups II and III (p < 0.05, p< 0.00). The time to full recovery of the sensorial block was 136 min in Group I, 154 min in Group II and 170 min in Group III. The differences were statistically significant (p < 0.05). The mean duration of the motor block was 88 min in Group I, 105 min in Group II, and 139 min in Group III and the differences were statistically significant (p < 0.05). The time to urination in Group I was statistically significantly shorter than in the other groups (p < 0.00). CONCLUSIONS: The results of the study showed that together with an increase in density, the sensory and motor block duration was lengthened. It can be concluded that 30 mg mL-1 concentration of dextrose added to 7.5 mg levobupivacaine is sufficient to provide unilateral spinal anaesthesia in day-case arthroscopic knee surgery.


RESUMO JUSTIFICATIVA E OBJETIVOS: Comparar as características do bloqueio e os efeitos clínicos da adição de dextrose às soluções de levobupivacaína em diferentes concentrações para proporcionar raquianestesia unilateral em cirurgia de extremidade inferior. MÉTODOS: Estudo prospectivo, randômico e duplo-cego conduzido com 75 pacientes, estado físico ASA I-II, programados para artroplastia unilateral total do joelho. Os pacientes foram divididos em três grupos: no Grupo-I, 60 mg de dextrose foram adicionados a 7,5 mg de levobupivacaína a 0,5%; no Grupo II, 80 mg e no Grupo III, 100 mg. A raquianestesia foi aplicada ao paciente posicionado em decúbito lateral, com o lado operado abaixo, e o paciente foi mantido em posição durante 10 minutos. RESULTADOS: O tempo para o bloqueio sensorial atingir o nível T12 foi mais lento no Grupo-I do que nos grupos II e III (p < 0,05,p < 0,00). O tempo de recuperação total do bloqueio sensorial foi de 136 minutos no Grupo-I, 154 minutos no Grupo-II e 170 minutos no Grupo III. As diferenças foram estatisticamente significativas (p < 0,05). A média da duração do bloqueio motor foi de 88 minutos no Grupo-I, 105 minutos no Grupo-II e 139 minutos no Grupo-III e as diferenças foram estatisticamente significativas (p< 0,05). O tempo de micção foi significativamente menor no Grupo-I do que nos outros grupos (p < 0,00). CONCLUSÕES: Os resultados do estudo mostraram que, junto com um aumento da densidade, a duração dos bloqueios sensorial e motor foi prolongada. Pode-se concluir que uma concentração 30 mg mL-1 de dextrose adicionada a 7,5 mg de levobupivacaína é suficiente para proporcionar raquianestesia unilateral para artroscopia do joelho em regime ambulatorial.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Aged , Young Adult , Arthroscopy/methods , Bupivacaine/analogs & derivatives , Glucose/administration & dosage , Anesthesia, Spinal/methods , Time Factors , Bupivacaine/administration & dosage , Double-Blind Method , Prospective Studies , Dose-Response Relationship, Drug , Levobupivacaine , Knee Joint/surgery , Anesthetics, Local/administration & dosage , Middle Aged
9.
J. pediatr. (Rio J.) ; 91(5): 428-434, Sept.-Oct. 2015. tab, graf
Article in English | LILACS | ID: lil-766170

ABSTRACT

ABSTRACT OBJECTIVE: To compare two electrolyte maintenance solutions in the postoperative period in children undergoing appendectomy, in relation to the occurrence of hyponatremia and water retention. METHODS: A randomized clinical study involving 50 pediatric patients undergoing appendectomy, who were randomized to receive 2,000 mL/m2/day of isotonic (Na 150 mEq/L or 0.9% NaCl) or hypotonic (Na 30 mEq/L NaCl or 0.18%) solution. Electrolytes, glucose, urea, and creatinine were measured at baseline, 24 h, and 48 h after surgery. Volume infused, diuresis, weight, and water balance were analyzed. RESULTS: Twenty-four patients had initial hyponatremia; in this group, 13 received hypotonic solution. Seventeen patients remained hyponatremic 48 h after surgery, of whom ten had received hypotonic solution. In both groups, sodium levels increased at 24 h (137.4 ± 2.2 and 137.0 ± 2.7 mmol/L), with no significant difference between them (p = 0.593). Sodium levels 48 h after surgery were 136.6 ± 2.7 and 136.2 ± 2.3 mmol/L in isotonic and hypotonic groups, respectively, with no significant difference. The infused volume and urine output did not differ between groups during the study. The water balance was higher in the period before surgery in patients who received hypotonic solution (p = 0.021). CONCLUSIONS: In the post-appendectomy period, the use of hypotonic solution (30 mEq/L, 0.18%) did not increase the risk of hyponatremia when compared to isotonic saline. The use of isotonic solution (150 mEq/L, 0.9%) did not favor hypernatremia in these patients. Children who received hypotonic solution showed higher cumulative fluid balance in the preoperative period.


RESUMO OBJETIVO: Comparar duas soluções de manutenção hidroeletrolítica no período pós-operatório (PO) de crianças submetidas à apendicectomia quanto à ocorrência de hiponatremia e retenção hídrica. MÉTODOS: Estudo clínico randomizado que envolveu 50 pacientes pediátricos submetidos à apendicectomia, randomizados para receber 2.000 ml/m2/dia de solução isotônica (Na 150 mEq/L ou NaCl 0,9%) ou hipotônica (Na 30mEq/L ou NaCl 0,18%). Eletrólitos, glicose, ureia e creatinina foram mensurados no início do estudo, 24 e 48 horas após a cirurgia. Foram analisados volume infundido, diurese, peso e balanço hídrico. RESULTADOS: Apresentaram hiponatremia inicial 24 pacientes. Desses, 13 receberam solução hipotônica. Dezessete pacientes permaneceram hiponatrêmicas 48 horas após a cirurgia, 10 haviam recebido solução hipotônica. Nos dois grupos os níveis de sódio aumentaram na 24ª hora PO (137,4 ± 2,2 e 137,0 ± 2,7) e não houve diferença entre eles (p = 0,593). Níveis de sódio 48 h após a cirurgia foram 136,6 ± 2,7 e 136,2 ± 2,3 no grupo isotônico e hipotônico respectivamente sem diferença significativa. Os volumes infundidos e a diurese não diferiram entre os grupos durante o estudo. O balanço hídrico foi maior no período anterior à cirurgia no grupo de pacientes que receberam solução hipotônica (p = 0,021). CONCLUSÕES: No período pós-apendicectomia, o uso da solução hipotônica não aumentou o risco de hiponatremia quando comparado com uma solução salina isotônica. O uso da solução isotônica não favoreceu a hipernatremia nesses pacientes. Crianças que receberam solução hipotônica apresentaram maior balanço hídrico cumulativo no período pré-operatório.


Subject(s)
Adolescent , Child , Child, Preschool , Female , Humans , Infant , Male , Appendectomy , Fluid Therapy/methods , Hyponatremia/prevention & control , Postoperative Complications/prevention & control , Appendectomy/adverse effects , Double-Blind Method , Diuresis/drug effects , Glucose/administration & dosage , Hyponatremia/blood , Hypotonic Solutions/administration & dosage , Infusions, Intravenous , Isotonic Solutions/administration & dosage , Postoperative Period , Preoperative Period , Prospective Studies , Potassium Chloride/administration & dosage , Sodium Chloride/administration & dosage , Sodium/blood
10.
Rev. bras. psiquiatr ; 37(1): 21-30, Jan-Mar/2015. tab, graf
Article in English | LILACS | ID: lil-741942

ABSTRACT

Objective: Patients with chronic hepatitis C (CHC) have a poorer quality of life than those with other chronic liver diseases. However, some of the factors that determine health-related quality of life (HRQOL) in these patients, such as the degree of liver fibrosis, are still controversial. Therefore, the aim of the present study was to investigate the impact of CHC on HRQOL by conducting clinical, psychiatric, and sociodemographic evaluations. Methods: One hundred and twenty-four consecutive patients attending a referral center for hepatitis were evaluated using the Mini-International Neuropsychiatry Interview, the Hamilton Depression Rating Scale, the Hospital Anxiety and Depression Scale, and the Medical Outcomes Study 36-Item Short-Form Health Survey. Multiple linear regression analyses were used to quantify independent associations between HRQOL and the clinical, psychiatric, and sociodemographic variables of interest. Results: Reduced HRQOL was independently associated with major depressive disorder (MDD) and with elevated levels of alanine aminotransferase, but was not associated with hepatic cirrhosis. Conclusions: MDD rather than the grade of liver fibrosis was strongly associated with HRQOL impairment in patients with CHC. These findings highlight that, in patients with CHC, the psychological effects of the disease deserve more attention and the implementation of integrated medical, psychiatric, and psychological care may be helpful. .


Subject(s)
Adolescent , Adult , Female , Humans , Male , Young Adult , Cognition Disorders/blood , Cognition Disorders/etiology , Glucose/administration & dosage , Internal-External Control , Self Concept , Schizophrenia/complications , Analysis of Variance , Blood Glucose , Fasting , Hand Strength , Neuropsychological Tests
12.
Rev. latinoam. enferm. (Online) ; 22(5): 810-818, Sep-Oct.2014. tab
Article in English | LILACS, BDENF | ID: lil-730626

ABSTRACT

OBJECTIVE: to analyze the total Premature Infant Pain Profile scores of premature infants undergoing arterial puncture during music and 25% glucose interventions, and to assess their association with neonatal and therapeutic variables. METHOD: a randomized clinical trial with 80 premature infants; 24 in the Experimental Group 1 (music), 33 in the Experimental Group 2 (music and 25% glucose), 23 in the Positive Control Group (25% glucose). All premature infants were videotaped and a lullaby was played for ten minutes before puncture in Experimental Groups 1 and 2; 25% glucose administered in Experimental Group 2 and the Positive Control Group two minutes before puncture. RESULTS: 60.0% of premature infants had moderate or maximum pain; pain scores and intervention groups were not statistically significant. Statistically significant variables: Experimental Group 1: head and chest circumference, Apgar scores, corrected gestational age; Experimental Group 2: chest circumference, Apgar scores, oxygen therapy; Positive Control group: birth weight, head circumference. CONCLUSION: neonatal variables are associated with pain in premature infants. Brazilian Registry of Clinical Trials: UTN: U1111-1123-4821. .


OBJETIVO: analisar os escores totais do Premature Infant Pain Profile dos prematuros submetidos a punção arterial sob intervenção da música e glicose 25%, verificar a associação desses com variáveis neonatais e terapêuticas. MÉTODO: ensaio clínico randomizado com 80 prematuros, 24 Grupo Experimental 1 (música), 33 Grupo Experimental 2 (música e glicose 25%), 23 Grupo Controle Positivo (glicose 25%). Todos os prematuros foram filmados e uma música de ninar foi ouvida por 10 minutos antes da punção no Grupo Experimental 1 e Grupo Experimental 2, glicose 25% administrada no Grupo Experimental 2 e Grupo Controle Positivo dois minutos antes da punção. RESULTADOS: 60,0% dos prematuros apresentaram dor moderada ou intensa, os escores de dor e grupos de intervenção não demonstraram significância estatística. Variáveis estatisticamente significantes, Grupo Experimental 1: perímetro cefálico e torácico, Apgar, idade gestacional corrigida; Grupo Experimental 2: perímetro torácico, Apgar, oxigenoterapia; Grupo Controle Positivo: peso nascimento, perímetro cefálico. CONCLUSÃO: variáveis neonatais apresentam associação com dor em prematuros. Registro Brasileiro de Ensaio Clínico: UTN: U1111-1123-4821. .


OBJETIVO: analizar los puntajes totales del Premature Infant Pain Profile de los prematuros sometidos a punción arterial bajo intervención de música y de glucosa al 25%, y verificar la asociación de estos con variables neonatales y terapéuticas. MÉTODO: ensayo clínico aleatorio con 80 prematuros: 24 Grupo Experimental 1 (música), 33 Grupo Experimental 2 (música y glucosa al 25%) y 23 Grupo Control Positivo (glucosa al 25%). Todos los prematuros fueron filmados y una canción de cuna fue escuchada por 10 minutos antes de la punción en el Grupo Experimental 1 y en el Grupo Experimental 2, glucosa al 25% administrada en el Grupo Experimental 2 y en el Grupo Control Positivo, dos minutos antes de la punción. RESULTADOS: 60,0% de los prematuros presentaron dolor moderado o intenso, los puntajes de dolor y los grupos de intervención no demostraron ser estadísticamente significativos. Las variables estadísticamente significativas fueron en el Grupo Experimental 1: perímetro cefálico y torácico, Apgar, Edad Gestacional corregida; en el Grupo Experimental 2: perímetro torácico, Apgar, oxigenoterapia; y, en el Grupo Control Positivo: peso nacimiento, perímetro cefálico. CONCLUSIÓN: las variables neonatales presentan una asociación con el dolor en prematuros. Registro Brasileño de Ensayo Clínico: UTN: U1111-1123-4821. .


Subject(s)
Humans , Male , Female , Infant, Newborn , Pain Management/methods , Glucose/administration & dosage , Music Therapy , Infant, Premature , Double-Blind Method
13.
Pesqui. vet. bras ; 34(2): 179-184, fev. 2014. tab
Article in Portuguese | LILACS | ID: lil-709863

ABSTRACT

Foram comparados os efeitos de soluções eletrolíticas com diferentes osmolaridades administradas via enteral por sonda nasoesofágica de pequeno calibre, em fluxo contínuo, sobre o perfil bioquímico em equinos. Foram utilizadas seis fêmeas adultas em dois quadrados latinos 6x3 simultâneos em modelo misto. Os animais foram distribuídos em três grupos e cada grupo submetido aos seguintes tratamentos: HipoMalt - 5g de cloreto de sódio, 0,5g de cloreto de potássio, 0,2g de pidolato de magnésio, 1g de gluconato de cálcio e 10g de maltodextrina diluídos em 1.000mL de água (181mOsmol L-1), HipoDext - 5g de cloreto de sódio, 0,5g de cloreto de potássio, 0,2g de pidolato de magnésio, 1g de gluconato de cálcio e 10g de dextrose diluídos em 1.000mL de água (228mOsmol L-1) e IsoProp - 5g de cloreto de sódio, 0,5g de cloreto de potássio, 0,2g de pidolato de magnésio e 10g de propionato de cálcio diluídos em 1.000mL de água (282mOsm L-1). As soluções contendo dextrose (HipoDext) e maltodextrina (HipoMalt) foram mais eficazes em aumentar a taxa glicêmica sem ocasionar desequilíbrio eletrolítico. Já o tratamento com propionato de cálcio (IsoProp) além de aumentar o lactato plasmático não teve efeito sobre a glicemia.


We compared the effects of electrolyte solutions with different osmolarities administered through enteral route by naso-esophageal probe of small-caliber with continuos flow on the electrolytic and biochemical profile in horses. Six adult females were used in two simultaneous 6x3 Latin squares mixed model. The animals were divided into three groups and received the following treatments: HipoMalt - 5g of sodium chloride, 0.5g of potassium chloride, 0.2g of magnesium pidolate, 1g of calcium gluconate and 10g of maltodextrin diluted in 1.000mL of water (181mOsmol L-1); HipoDext - 5g of sodium chloride, 0.5g of potassium chloride, 0.2g of magnesium pidolate, 1g of calcium gluconate and 10g of dextrose diluted in 1.000mL of water (228mOsmol L-1); IsoProp - 5g of sodium chloride, 0.5g of potassium chloride, 0.2g of magnesium pidolate, 1g of calcium gluconate and 10g of calcium propionate diluted in 1.000mL of water (282mOsm L-1). The hypotonic electrolyte solutions containing dextrose (HipoDext) and maltodextrin (HipoMalt) were more effective in increase the rate glucose without causing electrolyte imbalance. Treatment with calcium propionate (IsoProp) besides increasing plasma lactate had no effect on blood glucose.


Subject(s)
Animals , Female , Horses/physiology , Water-Electrolyte Balance , Water-Electrolyte Balance/physiology , Enteral Nutrition/veterinary , Osmolar Concentration , Hypotonic Solutions/therapeutic use , Rehydration Solutions/therapeutic use , Glucose/administration & dosage , Maltose , Propionates/administration & dosage
14.
J. bras. nefrol ; 35(4): 273-278, out.-dez. 2013. ilus, tab
Article in Portuguese | LILACS | ID: lil-697087

ABSTRACT

INTRODUÇÃO: A Insuficiência Renal Crônica (IRC) tem incidência alarmante neste século. A diálise peritoneal, uma das modalidades de terapia renal pode ter complicações, e entre estas a fibrose peritoneal, que ocorre com o decorrer dos anos nestes pacientes. Sua forma mais grave é a chamada peritonite esclerosante encapsulante, levando à mudança de terapia dialítica. OBJETIVO: Estudar a influência do uso do captopril na fibrose peritoneal induzida em ratos pelo uso de solução de glicose a 4,25 %. MÉTODOS: Estudo prospectivo controlado, em ratos Wistar não urêmicos. Foram estudados 20 animais. Os animais foram submetidos diariamente à punção abdominal, sendo infundida solução de diálise peritoneal com glicose a 4,25% na dose de 10 ml/100 g de peso. Os animais foram divididos em 2 grupos: experimental e controle. O grupo experimental recebeu captopril na dose de 30 mg/kg/dia por gavagem. O grupo controle não recebeu nenhuma droga. Foram acompanhados por 21 e 49 dias. Ao final do período foram submetidos à procedimento cirúrgico para retirada de peritônio parietal e visceral. As amostras obtidas foram analisadas histologicamente, usando-se coloração Hematoxilina - Eosina e Sirius Red, para avaliação do grau de fibrose. RESULTADOS: A análise mostrou que a intensidade da fibrose, a espessura do peritônio e o número de células não atingiram diferença estatisticamente significante entre os grupos experimental e controle. CONCLUSÃO: O estudo mostrou que o uso do captopril não foi capaz de alterar a intensidade da fibrose peritoneal induzida pelo uso de solução de diálise em ratos.


INTRODUCTION: Chronic renal failure has alarming incidence all over the world in this century. Among the modalities of dialytic treatment, peritoneal dialysis has a major spot. This method of dialytictreatment may present complications, and among those is peritoneal fibrosis. It occurs in patients submitted to peritoneal dialysis along years. It's most dangerous form is sclerosing encapsulant peritonitis, wich leads to a need of change in modality and many times lead to death. OBJECTIVE: Study the influence of using captopril on the peritoneal fibrosis induced in rats using solution with glucoses 4.25%. METHODS: Prospective controlled study in 20 non-uremic Wistar rats. The animals received a peritoneal infusion of 10 ml/100g of peritoneal dialysis solution glucose 4.25% on a daily basis. The animals were divided in two groups: experimental and control. The experimental group received captopril 30 mg/kg/d, by a gastric tube. The control group did not receive any drug. The follow-up was 21 and 49 days. At the end, one surgical procedure was performed to get histological samples of visceral and parietal peritoneum. The samples were analyzed using Hematoxylin Eosin and Sirius Red, to evaluate the severity of the fibrosis. RESULTS: The analysis showed that the intensity of the fibrosis, the peritoneal thickness and the cell number in experimental and control groups were not statistically significant different in experimental and control groups. CONCLUSION: Our findings indicate that captopril do not decrease the intensity of fibrosis on the peritoneal membrane that happens on rats on peritoneal dialysis.


Subject(s)
Animals , Male , Rats , Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Captopril/therapeutic use , Glucose/administration & dosage , Peritoneal Dialysis , Peritoneal Fibrosis/prevention & control , Peritoneal Fibrosis/chemically induced , Rats, Wistar
15.
Rev. bras. cir. cardiovasc ; 28(1): 54-60, jan.-mar. 2013. ilus, tab
Article in English | LILACS | ID: lil-675873

ABSTRACT

OBJECTIVE: A simple method to reduce the ischemia/reperfusion injury that can accompany cardiac surgery would have great clinical value. This study was to investigate the effect of hyperosmotic perfusion on ischemia/reperfusion injury in isolated perfused rat hearts. METHOD: Forty male Sprague-Dawley rats were randomly divided either to have their isolated hearts perfused with normal osmotic buffer or buffer made hyperosmotic by addition of glucose. Hearts were then subjected to 30 min ischemia followed by 30 min reperfusion. Coronary flow, time to ischemic arrest, reperfusion arrhythmia, and ventricular function were recorded. Creatine phosphokinase leakage into the coronary artery, and myocardial content and activity of superoxide dismutase and catalase were also examined. RESULTS: Rat hearts with hyperosmotic perfusion showed higher coronary flow, a prolonged time to ischemic arrest (10.60 vs. 5.63 min, P<0.005), a lower reperfusion arrthythmia score (3.2 vs. 5.3, P<0.001), better ventricular function, and less creatine phosphokinase leakage (340.1 vs. 861.9, P<0.001) than normal osmotic controls. Myocardial catalase content and activity were increased significantly (1435 vs. 917 U/g wet weight, P<0.001) in hearts perfused with hyperosmotic solution in comparison to the normal osmotic controls. CONCLUSION: Pretreatment with hyperosmotic perfusion in normal rat hearts, which is attributed partly to the increased antioxidative activity, could provide beneficial effects from ischemia and reperfusion-induced injury by increasing coronary flow, and decreasing reperfusion arrhythmia.


OBJETIVO: Um método simples para reduzir a lesão de isquemia/reperfusão que pode acompanhar a cirurgia cardíaca teria grande valor clínico. O objetivo deste estudo foi investigar o efeito da perfusão hiperosmótica na isquemia/reperfusão em corações isolados de ratos perfundidos. MÉTODOS: Quarenta ratos machos Sprague-Dawley foram divididos aleatoriamente e tiveram os seus corações isolados perfundidos com tampão osmótico normal ou tampão hiperosmótico com a adição de glucose. Os corações foram então submetidos a 30 minutos de isquemia, seguida de 30 min de reperfusão. O fluxo coronariano, tempo de parada isquêmica, arritmia de reperfusão e da função ventricular foram registrados. Vazamento creatinofosfoquinase na artéria coronária, o miocárdio e atividade de superóxido dismutase e catalase foram também examinados. RESULTADOS: Crações de ratos com perfusão hiperosmótica apresentaram maior fluxo coronariano, tempo prolongado de parada isquêmica (10,60 vs. 5,63 min, P<0,005), menor pontuação de reperfusão arritmica (3,2 vs. 5,3, P<0,001), melhor função ventricular e menos vazamento de creatina fosfoquinase (340,1 vs. 861,9, P<0,001) do que controles normais osmóticos. Teor de catalase e atividade do miocárdio também tiveram aumento significativo (1435 vs. 917 peso U/g de peso fresco, P<0,001) em corações perfundidos com solução hiperosmótica em comparação com os controles normais osmóticos. CONCLUSÃO: O pré-tratamento com perfusão hiperosmótica em corações de ratos normais, o que é atribuído, em parte, ao aumento da atividade antioxidante, pode oferecer efeitos benéficos de isquemia e reperfusão induzida por lesão, aumentando o fluxo coronário e diminuindo a arritmia de reperfusão.


Subject(s)
Animals , Male , Rats , Heart/physiopathology , Myocardial Reperfusion Injury/prevention & control , Organ Preservation Solutions/administration & dosage , Perfusion/methods , Blotting, Western , Creatine Kinase/blood , Glucose/administration & dosage , Glucose/chemistry , Heart Ventricles/physiopathology , Myocardial Reperfusion Injury/blood , Osmolar Concentration , Organ Preservation Solutions/chemistry , Random Allocation , Rats, Sprague-Dawley , Reproducibility of Results , Time Factors , Treatment Outcome , Tromethamine/administration & dosage , Tromethamine/chemistry
16.
Clinics ; 68(2): 199-204, 2013. ilus, tab
Article in English | LILACS | ID: lil-668807

ABSTRACT

OBJECTIVE: Ophthalmologic examination for retinopathy of prematurity is a painful procedure. Pharmacological and non-pharmacological interventions have been proposed to reduce pain during eye examinations. This study aims to evaluate the analgesic effect of 25% glucose using a validated pain scale during the first eye examination for retinopathy of prematurity in preterm infants with birth weight <1,500 g and/or gestational age <32 weeks. METHODS: A masked, randomized clinical trial for one dose of 1 ml of oral 25% glucose solution 2 minutes before the first ophthalmologic examination for retinopathy of prematurity was conducted between March 2008 and April 2010. The results were compared to those of a control group that did not receive oral glucose solution. Pain was evaluated using a Neonatal Infant Pain Scale immediately before and immediately after the ophthalmologic examination in both groups. Clinicaltrials.gov: NCT00648687 RESULTS: One hundred and twenty-four patients who were examined for the first time for retinopathy of prematurity were included. Seventy were included in the intervention group and 54 in the control group. The number of patients with pain immediately before the procedure was similar in both groups. The number of patients with pain after ophthalmologic examination was 15.7% in the intervention group and 68.5% in the control group (p<0.001). CONCLUSIONS: One ml of oral 25% glucose solution given 2 minutes before an ophthalmologic examination for retinopathy of prematurity was an effective measure for pain relief.


Subject(s)
Female , Humans , Infant, Newborn , Analgesics/administration & dosage , Eye Pain/prevention & control , Eye/drug effects , Glucose/administration & dosage , Retinopathy of Prematurity/diagnosis , Administration, Oral , Analysis of Variance , Analgesics/pharmacology , Glucose/pharmacology , Pain Measurement , Time Factors , Treatment Outcome
17.
Lima; s.n; 2013. 57 p. tab, graf.
Thesis in Spanish | LIPECS, LILACS, LIPECS | ID: lil-713966

ABSTRACT

OBJETIVOS: Determinar si la aplicación de Dextrosa al 33 por ciento es útil en el manejo de pacientes primíparas con disfunción en fase activa del trabajo de parto atendido en el servicio de Gineco-obstetricia del HONADOMANI-SAN BARTOLOME de Julio 2012 a Agosto 2013. METODOLOGIA: Estudio de tipo Observacional, analítico-comparativo, prospectivo, transversal. Se trabajó con la población de pacientes que se atendieron en los servicios de obstetricia del HONADOMANI-SAN BARTOLOME durante los años Julio 2012 a Agosto 2013, la muestra estuvo dividida en dos grupos ambos: el grupo de pacientes con aplicación de Dextrosa 33 por ciento conformado por 73 pacientes (Grupo intervención) y el grupo de pacientes sin aplicación de Dextrosa 33 por ciento: conformado por 145 pacientes (Grupo Comparativo). Se estimaron las frecuencias absolutas y relativas de las variables de cualitativas y medidas de tendencia central y de dispersión de las cuantitativas. Se utilizó para el análisis bivariado la prueba Chi cuadrado para las variables cualitativas y t-Student para las variables cuantitativas. Toda interpretación estadística se realizó con un nivel de significancia del 95 por ciento. RESULTADOS: El perfil sociodemográfico de las pacientes es de edad materna promedio de 24.3±5.9 años siendo los rangos con mayor predominio de edad entre 19 a 35 años (79.5 por ciento). Al respecto de la corrección de la primera disfunción del trabajo de parto en la 4 primeras horas: se observan porcentajes estadísticamente similares en la 1ra (p=0.532), 2da (p=0.187), 3ra (p=0.726) y 4ta (p=0.465) horas de corrección de la disfunción. El tiempo de ayuno se correlaciona con el uso o no de Dextrosa al 33 por ciento, observándose cierta significancia entre las frecuencias relativas (p=0.056). Para el uso de oxitocina, el 82.2 por ciento de las pacientes del grupo con uso de Dextrosa y el 84.1 por ciento de las pacientes sin uso de Dextrosa en algún momento usaron oxitocina, observándose que no existe...


OBJECTIVE: To determine whether the application of Dextrose 33 per cent is useful in the management of patients primiparous with dysfunction active of phase of labor treated at the Gynecology and Obstetrics Service of HONADOMANI-SAN BARTOLOME from July 2012 to August 2013. METHODOLOGY: Observational study type, analytical-corporative, prospective, cross. We worked with the population of patients seen in obstetric services attending the HONADOMANI-SAN BARTOLOME during the period July 2012 to August 2013, the sample was divided into two groups both labor dysfunction: group patients with 33 per cent Dextrose application formed by 73 patients (Group intervention) and the group of patients without the application of 33 per cent Dextrose: formed by 145 (Comparative group). For qualitative variables were estimated absolute and relative frequencies, and for quantitative were estimated measures of central tendency and dispersion. For bivariate analysis was used Chi-square test. All statistical interpretation was performed with a significance level of 95 per cent. RESULTS: The sociodemographic profile of the patients are of average maternal age of 24.3±5.9 years being with the highest predominant of age between 19-35 years (79.5 per cent). Respect in the correction of the first labor dysfunction in first 4 hours: Percentages statistically similar are observed in the 1st (p=0.532), 2nd (p=0.187), 3rd (p=0.726) and 4th (p=0.465) hours dysfunction correction. The fasting time is correlated with the use or not of Dextrose 33 per cent, with some significance between the relative frequencies (p=0.056). For the use of oxytocin, 82.2 per cent of patients in the group use Dextrose and 84.1 per cent of patients without the use of Dextrose used of oxytocin in any moment, so that there is no relationship between the time of use of oxytocin and the study group (p=0.715). With regards to the approach end of labor: The 24.7 per cent of patients with providing 33 per cent dextrose...


Subject(s)
Humans , Female , Pregnancy , Adolescent , Young Adult , Middle Aged , Fasting , Glucose/administration & dosage , Labor, Obstetric , Observational Study , Prospective Studies , Cross-Sectional Studies
18.
Acta cir. bras ; 27(1): 49-55, Jan. 2012. ilus, tab
Article in English | LILACS | ID: lil-607996

ABSTRACT

PURPOSE: To study the lesions in the lung of rabbits caused by ischemia/reperfusion hepatic (I/R) after the use of N-acetyl-cysteine (NAC). METHODS: Twenty-four rabbits distributed in two groups: control group GI (n = 12) 5 percent glucose solution and experiment group GII (n = 12) NAC. The animals were pre-anesthetized with 1 percent acepromazine maleate and anesthetized with ketamine 10 percent and 2 percent xylazine intramuscularly. The GI and GII were given glucose solution intravenously or NAC 15min before occlusion of the hepatic pedicle (30 min). After the period of reperfusion of 24h (n = 6) or 48h (n = 6), liver and lung samples were collected for histology and immunohistochemistry to assess the impairment of cell. RESULTS: The animals of GII and GII-24h-48h showed parenchyma liver close to normal, when using NAC. The GII and GII-24h-48h showed lower thickness of alveolar cells that GI and GI-24h-48h. The expression of caspase 3 in lung cells GII presented smaller value compared to the GI group. CONCLUSION: N-acetyl-cysteine administered 15min prior to the injury ischemia/reperfusion had a significant protective role by minimizing lung injury and apoptotic morphology in the period observed.


OBJETIVO: Estudar as lesões no fígado e no pulmão de coelhos, provocadas pela isquemia/reperfusão hepática (I/R) moduladas pelo uso da N-acetil-cisteína (NAC). MÉTODOS: Vinte e quatro coelhos distribuídos em dois grupos: Grupo controle GI (n=12) solução de glicose 5 por cento e Grupo experimento GII (n=12) NAC. Os animais foram pré-anestesiados com maleato de acepromazina 1 por cento e anestesiados com cloridrato de quetamina 10 por cento e xilazina 2 por cento via intramuscular. Os grupos GI e GII receberam solução glicosada ou NAC respectivamente via endovenosa 15min antes da oclusão do pedículo hepático (30 min). Após iniciou-se o período de reperfusão por 24h (n=6) ou 48h (n=6), terminada a reperfusão, amostras do fígado e pulmão foram coletadas para a histologia e imunoistoquímica para avaliar o comprometimento celular. RESULTADOS: Os animais do grupo GII-24h e GII-48h apresentaram arquitetura do parênquima hepático próximo do normal, quando se utilizou NAC. Os grupos GII-24h e GII-48h apresentaram menor espessura das células alveolares que os grupos GI-24h e GI-48h. A expressão da caspase 3 nas células pulmonares do grupo GII, apresentou valor menor comparada ao grupo GI. CONCLUSÃO: A N-acetil-cisteína administrada 15min prévios a lesão da isquemia/reperfusão teve um papel protetor significativo minimizando as lesões morfológicas e apoptóticas pulmonares nos períodos observados.


Subject(s)
Animals , Male , Rabbits , Acetylcysteine/administration & dosage , Free Radical Scavengers/administration & dosage , Liver/blood supply , Lung Injury/prevention & control , Reperfusion Injury/prevention & control , Disease Models, Animal , Glucose/administration & dosage , Infusions, Intravenous , Random Allocation , Time Factors
19.
J. vasc. bras ; 10(2): 110-118, jun. 2011. ilus
Article in Portuguese | LILACS | ID: lil-596997

ABSTRACT

CONTEXTO: Por ser o laser um método novo no tratamento das varizes, há muitos mitos e dúvidas com relação à sua eficácia; assim, surgiu a necessidade de compará-lo a substância esclerosante mais utilizada em nosso meio (glicose hipertônica). OBJETIVO: Comparar a eficiência do laser diodo 980 nm à glicose 75 por cento na oclusão de veias em orelha de coelho. MÉTODOS: Ensaio aleatório em animais de laboratório por 21 dias. A amostra consistiu de orelhas de coelhos machos adultos. Grupo L (laser): 15 orelhas tratadas com laser; grupo G (glicose 75 por cento): 15 orelhas tratadas com glicose a 75 por cento. Variáveis primárias: veias esclerosadas e/ou ocluídas. Variáveis complementares: volume da substância administrada, complicações e peso. O tamanho da amostra foi estimado em 30 orelhas. Foi realizado o teste exato de Fisher associado ao Risco Relativo (RR), calculando-se o intervalo de confiança (IC) de 95 por cento para as variáveis acima. RESULTADOS: A incidência de esclerose ou oclusão venosa no grupo G foi de 53 por cento (8/15; IC95 por cento: 27-79) e no grupo L, 20 por cento (3/15; IC95 por cento: 4-49). O p bicaudal foi de 0,1281, o RR usando a aproximação de Katz foi de 2,66; IC95 por cento: 0,87-8,15. CONCLUSÃO: A eficiência do laser diodo 980 nm em comparação à da glicose 75 por cento na oclusão de veias para o modelo experimental estudado foi equivalente.


BACKGROUND: The laser is a new treatment to varicose veins and there is several myths and doubts in relation to its efficacy; then, there is the need to compare it with the most commonly sclerosing solution (hypertonic glucose) used in our specialty. OBJECTIVE: To compare the efficiency of the diode laser 980nm to the glucose 75 percent in the occlusion of veins from the ear of rabbits. METHODS: Aleatory trial in laboratory animals during 21 days. The sample consisted of ears from male adult rabbits. Group L (laser): 15 ears treated with laser; group G (glucose 75 percent): 15 ears treated with glucose 75 percent. Primary variables: sclerotic and/or occluded veins. Complementary variables: volume of the managed substance, complications and weight of rabbit. The sample size was estimated in 30 ears. The statistical analysis was carried out by Fisher''s exact test associated to the Relative Risk (RR), calculating the confidence interval of 95 percent for the mentioned variables. RESULTS: The incidence of sclerosis or venous occlusion in group G was 53 percent (8/15; 95 percentCI: 27-79) and in group L was 20 percent (3/15; 95 percent CI: 4-49). Two-tailed p was 0.1281, RR using the approximation of Katz was 2.66; 95 percentCI: 0.87-8.15. CONCLUSION: The efficiency of the diode laser 980 nm in comparison to glucose 75 percent in occlusion of veins in this experimental model was equivalent.


Subject(s)
Animals , Rabbits , Vascular Diseases/veterinary , Randomized Controlled Trials as Topic/veterinary , Animal Experimentation/ethics , Glucose/therapeutic use , Lasers , Laser Therapy/methods , Rabbits/surgery , Sclerotherapy/classification , Glucose/administration & dosage , Xylazine/administration & dosage
20.
Arq. ciênc. vet. zool. UNIPAR ; 14(1)jan.-jun. 2011. tab
Article in Portuguese | LILACS | ID: lil-621392

ABSTRACT

A técnica de transferências periódicas de fragmentos de micélio para novo meio de cultura é a mais utilizada para a preservação de Agaricus blazei. Entretanto, esta técnica apresenta maior risco de contaminação, degeneração genética e perda de caracteristicas biológicas. O desenvolvimento de técnicas de preservação que permitam a manutenção da viabilidade da espécie por mais tempo e a um menor custo é de interesse biotecnológico. Desse modo, o objetivo deste trabalho foi avaliar a viabilidade de A. blazei crescido em dois meios de cultivo e preservado à +4 ºC ou -20 ºC em diferentes recipientes de contenção. O fungo foi crescido em meio de ágar-extrato de malte ou ágar-grão de trigo moído e preservado à +4 ºC ou -20 ºC em diferentes recipientes de contenção, simples ou duplos, com adição de soluções aquosas de glicerol, sacarose, glicose, água ultrapura ou sem adição de crioprotetor. Após 1 ou 12 meses o micélio preservado foi transferido para ágar-extrato de malte para avaliação da viabilidade micelial. Os crioprotetores glicerol, sacarose e glicose, associados com o meio de cultura ágar-extrato de malte ou ágar-grão de trigo moído, em recipiente de contenção simples ou duplo são efetivos para preservação à +4 ºC por períodos curtos, um mês, mas não são efetivos para períodos longos, 12 meses. Os crioprotetores, meios de cultivo e recipientes de contenção simples ou duplos não são efetivos para criopreservação do fungo à -20 ºC. Os recipientes simples são tão eficientes quanto os recipientes duplos para evitar contaminações e preservar o fungo.


Continuous mycelial subculturing is frequently used for the preservation of Agaricus blazei. However, this technique has a higher risk of contamination, genetic degeneration and loss of biological characteristics. The development of preservation techniques that allow maintaining the viability of this species longer and at lower costs is of biotechnological interest. Thus, the objective of this study was to evaluate the viability of A. blazei grown in two culture media and preserved at +4 ºC or -20 ºC in different containment vessels. The fungus was grown on malt extract agar or grounded wheat grain agar culture medium and preserved at +4 ºC or -20 ºC in different containment vessels, single or double ones, with the addition of aqueous solutions of glycerol, saccharose, glucose, ultrapure water or without addition of cryoprotectant. After 1 or 12 months, the preserved mycelium was transferred to malt extract agar for assessment of mycelial viability. Glycerol, saccharose and glucose associated with malt extract agar or grounded wheat grain agar culture medium, in single or double containment vessels, are effective for preservation at +4 ºC for a short period, one month, but they are not effective for a longer period, 12 months. Cryoprotectants, culture media and single or double containment vessels are not effective for fungus cryopreservation at -20 ºC. Simple containment vessels are as efficient as double ones to prevent contamination and to preserve the fungus.


La técnica de transferencias periódicas de fragmentos de micelio para nuevo medio de cultura es la más utilizada para la preservación de Agaricus blazei. Sin embargo, esta técnica presenta mayor riesgo de contaminación, degeneraciones genéticas y pérdidas de características biológicas. El desarrollo de técnicas de preservación que permitan la manutención y viabilidad de la especie por más tiempo y con un costo más bajo es de interés biotecnológico. De esta manera, el objetivo de este estudio fue evaluar la viabilidad de A. blazei sembrado en dos medios de cultivo y preservados en +4 ºC o -20 ºC en diferentes recipientes de contención. El hongo se cultivó en medio de extracto de agar de malta o agar de grano de trigo molido y preservado en +4 ºC o -20 ºC en diferentes recipientes de contención simple o doble, con adición de soluciones acuosas de glicerol, sacarosa, glucosa, agua ultra pura o sin adición de crioprotector. Después de 1 o 12 meses, el micelio preservado fue transferido para extracto de agar de malta para evaluación de la viabilidad del micelio. Los crioprotectores glicerol, sacarosa y glucosa, asociados con el medio de cultura extracto de agar de malta o de agar de grano de trigo molido, en recipiente de contención simple o doble son eficaces para la preservación a +4 ºC por períodos cortos, un mes, pero no son eficaces por períodos largos, como 12 meses. Los crioprotectores medios de cultivo y recipientes de contención simples o dobles no son eficaces para la criopreservación del hongo a -20 ºC. Recipientes simples son tan eficaces como los dobles para evitar contaminaciones y preservar el hongo.


Subject(s)
Agaricus/growth & development , Cryoprotective Agents , Culture Media , Mycelium/isolation & purification , Agar/administration & dosage , Glycerol/administration & dosage , Glucose/administration & dosage , Sucrose/administration & dosage
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