Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 55
Filtrar
1.
Eur Rev Med Pharmacol Sci ; 26(2): 558-572, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-35113432

RESUMO

OBJECTIVE: The aim of this study was to assess the impact of glucose control, diabetes-related complications and cardiometabolic risk factors on the risk of diabetic foot ulcers (DFUs) and DFU complications in Albanian adult inpatients with T2D. PATIENTS AND METHODS: We conducted a retrospective case-control study on 482 Albanian adult inpatients with T2D. DFU was defined as a full-thickness skin lesion requiring ≥14 days for healing and was classified at the time of hospital admission. Demographic and biochemical parameters of the study participants, the presence of comorbidities and diabetes-related complications at the time of hospital admission were evaluated through a retrospective chart review. RESULTS: Mean age of study participants was 54.8±10.7 years. Participants (284 males and 198 females) were divided into two groups: DFU (cases; n=104) and non-DFU (controls; n=378). Multivariate analysis (performed by a logistic regression model) revealed that the most relevant independent variables associated with DFU were BMI [OR=0.62; p=0.007], HDL-cholesterol [OR=0.00; p<0.0001], triglycerides [OR=7.48; p=0.0004], cigarette smoking [OR=26.46; p=0.005], duration of diabetes [OR=1.53; p<0.0001], fasting plasma glucose (FPG) [OR=1.06; p<0.0001], systolic blood pressure (SBP) [OR=1.13; p=0.0004] and insulin therapy alone [OR=0.11; p=0.02]. ROC curve analysis showed that FPG (AUC=0.83), glycated hemoglobin (HbA1c) (AUC=0.75), triglycerides (AUC=0.78) and HDL-cholesterol (AUC=0.82) were the most reliable biomarkers able to detect DFU. In the DFU group, the most relevant independent variables associated with previous minor lower-extremity amputations (LEAs) were represented by HbA1c [OR=1.47; p=0.03], age <55 years [OR=0.12; p=0.05] and female sex [OR=4.18; p=0.03]; whereas the most relevant independent variables associated with diabetic peripheral neuropathy (DPN) were HbA1c [OR=1.70; p=0.006], SBP [OR=1.08; p=0.05], BMI [OR=1.20; p=0.03] and lack of cigarette smoking [OR=0.07; p=0.01]. Correlation analysis (performed through the nonparametric Spearman's rank correlation test or through the parametric Pearson test, as appropriate) revealed a significant positive relationship between HbA1c and FPG (r=0.58; p<0.0001), ulcer surface area (r=0.50; p<0.0001), ulcer grade (r=0.23; p=0.02), minor LEAs (r=0.20; p=0.04), DPN (r=0.41; p<0.0001), and metformin therapy alone (r=0.72; p<0.0001). There was a significant inverse correlation between HbA1c and insulin therapy alone (r=-0.31; p=0.01) and combined metformin and insulin therapy (r=-0.60; p<0.0001). Both DFU and non-DFU groups exhibited suboptimal mean LDL-cholesterol levels (>100 mg/dl) and mean HbA1c values >7.5%. Moreover, in DFU group HbA1c values were markedly elevated (≥10%) particularly in patients with a grade 3 ulcer and an ulcer surface area ≥4 cm2, as well as in patients with history of minor LEAs and in patients affected by DPN. CONCLUSIONS: The present study suggested that longer duration of diabetes, cigarette smoking, lower HDL-cholesterol levels, poor glucose control, and elevated triglyceride and SBP values may all represent major risk factors for the development of DFU in Albanian patients with T2D. Thus, community interventions and health policies aimed to improve the management of diabetes and related cardiometabolic risk factors should be urgently implemented in Albania, in order to prevent DFUs and other diabetes complications in patients with T2D.


Assuntos
Diabetes Mellitus Tipo 2 , Pé Diabético , Adulto , Idoso , Estudos de Casos e Controles , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Pé Diabético/diagnóstico , Pé Diabético/epidemiologia , Feminino , Humanos , Pacientes Internados , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco
2.
Mycotoxin Res ; 37(1): 39-48, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33047278

RESUMO

There is little knowledge of the microbial diversity, mycotoxins and associated secondary metabolites in GM maize and isogenic non-GM cultivars (cvs). This study has quantified the microbial populations and dominant fungal genera in 6 cvs of each type representative of herbicide, pesticide or stacked resistance to both. The predominant mycotoxins and targeted metabolomics profiles were also compared between the two sets of cvs. This showed that the overall fungal populations were 8.8 CFUs g-1 maize. The dominant genera, isolated from maize samples, whether surface-sterilised or not, in all maize cvs were Fusarium, followed by Penicillium, Aspergillus and occasionally Cladosporium and Alternaria. The analysis of the targeted metabolomics showed that approx. 29 different metabolites were detected. These were dominated by fumonisins and minor Penicillium spp. metabolites (questiomycin A and rugulovasine A). Interestingly, the range and number of mycotoxins present in the GM cvs were significantly lower than in the non-GM maize samples. This suggests that while the fungal diversity of the two types of maize appeared to be very similar, the major contaminant mycotoxins and range of toxic secondary metabolites were much lower in the GM cvs.


Assuntos
Fungos/genética , Fungos/metabolismo , Variação Genética , Metabolômica , Plantas Geneticamente Modificadas/microbiologia , Zea mays/microbiologia , Aspergillus/isolamento & purificação , Aspergillus/metabolismo , Brasil , Contaminação de Alimentos/análise , Fungos/classificação , Fusarium/isolamento & purificação , Fusarium/metabolismo , Micotoxinas/análise , Penicillium/isolamento & purificação , Penicillium/metabolismo
4.
Lett Appl Microbiol ; 71(5): 459-465, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32500546

RESUMO

The objective was to screen 10 snake venoms for their efficacy to control growth and mycotoxin production by important mycotoxigenic fungi including Aspergillus flavus, Aspergillus westerdijkiae, Penicillium verrucosum, Fusarium graminearum and F. langsethiae. The Bioscreen C rapid assay system was used. The venoms from the Viperidae snake family delayed growth of some of the test fungi, especially F. graminearum and F. langsethiae and sometimes A. flavus. Some were also able to reduce mycotoxin production. The two most potent crude snake venoms (Naja nigricollis and N. siamensis; 41 and 43 fractions, respectively) were further fractionated and 83/84 of these fractions were able to reduce mycotoxin production by >90% in two of the mycotoxigenic fungi examined. This study suggests that there may be significant potential for the identification of novel fungistatic/fungicidal bioactive compounds as preservatives of raw and processed food commodities post-harvest from such snake venoms.


Assuntos
Aspergillus flavus/metabolismo , Aspergillus/metabolismo , Fusarium/metabolismo , Micotoxinas/biossíntese , Penicillium/metabolismo , Venenos de Víboras/farmacologia , Animais , Antifúngicos/farmacologia , Estudo de Prova de Conceito , Viperidae/metabolismo
5.
Fungal Biol ; 124(1): 1-7, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31892372

RESUMO

Aspergillus flavus is the main xerophylic species colonising stored peanuts resulting in contamination with aflatoxins (AFs) and cyclopiazonic acid (CPA). This study evaluated the relationship between storage of shelled peanuts under interacting abiotic conditions on (a) temporal respiration (R) and cumulative CO2 production, (b) dry matter losses (DMLs) and (c) aflatoxin B1 (AFB1) and CPA accumulation. Both naturally contaminated peanuts and those inoculated with A. flavus were stored for 7-days under different water activities (aw; 0.77-0.95) and temperatures (20-35°C). There was an increase in the temporal CO2 production rates in wetter and warmer conditions, with the highest respiration at 0.95 aw + A. flavus inoculum at 30°C (2474 mg CO2kg-1h-1). The DMLs were modelled to produce contour maps of the environmental conditions resulting in maximum/minimum losses. Maximum mycotoxin contamination was always at 0.95 aw although optimal temperatures were 25-30°C for AFs and 30-35°C for CPA. These results showed a correlation between CO2 production and mycotoxin accumulation. They also provide valuable information for the creation of a database focused on the development of a post-harvest decision support system to determine the relative risks of contamination with these mycotoxins in stored shelled peanuts.


Assuntos
Arachis/microbiologia , Aspergillus flavus/crescimento & desenvolvimento , Aspergillus flavus/metabolismo , Dióxido de Carbono/metabolismo , Armazenamento de Alimentos , Micotoxinas/análise , Aflatoxina B1/análise , Aflatoxina B1/biossíntese , Microbiologia de Alimentos , Indóis/análise , Indóis/metabolismo , Micotoxinas/biossíntese , Temperatura , Água
6.
Artigo em Inglês | MEDLINE | ID: mdl-30638440

RESUMO

Poor storage of cereals, such as maize can lead to both nutritional losses and mycotoxin contamination. The aim of this study was to examine the respiration of maize either naturally contaminated or inoculated with Aspergillus flavus to examine whether this might be an early and sensitive indicator of aflatoxin (AF) contamination and relative storability risk. We thus examined the relationship between different interacting storage environmental conditions (0.80-0.99 water activity (aw) and 15-35°C) in naturally contaminated and irradiated maize grain + A. flavus on relative respiration rates (R), dry matter losses (DMLs) and aflatoxin B1 and B2 (AFB1-B2) contamination. Temporal respiration and total CO2 production were analysed by GC-TCD, and results used to calculate the DMLs due to colonisation. AFs contamination was quantified at the end of the storage period by HPLC MS/MS. The highest respiration rates occurred at 0.95 aw and 30-35°C representing between 0.5% and 18% DMLs. Optimum AFs contamination was at the same aw at 30°C. Highest AFs contamination occurred in maize colonised only by A. flavus. A significant positive correlation between % DMLs and AFB1 contamination was obtained (r = 0.866, p < 0.001) in the irradiated maize treatments inoculated with A. flavus. In naturally contaminated maize + A. flavus inoculum loss of only 0.56% DML resulted in AFB1 contamination levels exceeding the EU legislative limits for food. This suggests that there is a very low threshold tolerance during storage of maize to minimise AFB1 contamination. This data can be used to develop models that can be effectively used in enhancing management for storage of maize to minimise risks of mycotoxin contamination.


Assuntos
Aflatoxinas/análise , Grão Comestível/química , Contaminação de Alimentos/análise , Armazenamento de Alimentos , Zea mays/química , Dióxido de Carbono
7.
Ann Ig ; 31(1): 45-51, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30554238

RESUMO

BACKGROUND: The intervention "Med-Anticancer Food Program" has proven to be effective in promoting the Mediterranean Diet, significantly increasing the Mediterranean Adequacy Index in healthy subjects. There are no studies that have investigated the effectiveness of this intervention in individuals who have had a diagnosis of cancer. OBJECTIVE: To perform a pilot study to assess the opportunity of employing the methodology of the Med-Anticancer Food Program in order to encourage "long-term cancer survivors" to adhere to the Mediterranean Diet, as well as healthy people, and this in order to apply the program to larger groups. METHODS: From the residents' register of Foggia, a city in southern Italy, forty adults of both sexes, over 25 years of age, were recruited at random and assigned (1:1) as follows: - Twenty healthy subjects to the intervention-1 group - Twenty long-term cancer survivors to the intervention-2 group. The Med-Anticancer Food Program was applied to both groups with an articulated intervention 11 weeks long, followed by a 52-week period of follow up. By means of a food diary of the last 3 days, the Mediterranean Adequacy Index values were calculated before intervention (T0), after a period of 11 weeks of interventions (T1) and at the end of the 52 weeks of follow-up period (T2). The H0 hypothesis of the study was that there are no differences between the two interventions in reaching by T1, and maintaining at T2, values of Mediterranean Adequacy Index around 7, considered the optimum for adherence to the Mediterranean diet. RESULTS: Out of the subjects assigned to the intervention-1 group (n = 20), 11 subjects have completed the 52-months follow-up (55.0% ); for intervention-2, 16 (80%) out of 20 have completed it. The average age of subjects was 52.1 years. The Mediterranean Adequacy Index, of intervention-1 group significantly increased from 2.8 (T0) to 9.2 (T1) and to 9.0 (T2) (p <0.0001); whereas, in the intervention-2 group, Mediterranean Adequacy Index moved from 2.4 (T0) to 10.2 (T1) and to 9.3 (T2) (p <0.0001). The difference of Mediterranean Adequacy Index between the two study groups at T1 and T2 was not significant. Such non-significance persists also after the stratification by sex and age obtained with Mantel-Haenszel procedure. The performance of the values of the laboratory parameters considered (folic acid, total cholesterol, alkyl resorcinol) was similar in the subjects of both intervention 1 and 2, without any difference, while considered at a basal level T0, at T1 and at the end of the follow-up period (T2). CONCLUSIONS: The results of our work suggest the feasibility of conducting the Med-Anticancer Food Program in long-term cancer survivors. The results of the pilot study show that such intervention, carried on a small number of long term cancer survivors, is adequate to assess its feasibility but, due to the limited size of our study, a confirmation is required through larger nutritional prevention intervention studies.


Assuntos
Sobreviventes de Câncer , Dieta Mediterrânea , Promoção da Saúde/métodos , Neoplasias/prevenção & controle , Adulto , Idoso , Feminino , Seguimentos , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Projetos Piloto
9.
Sanid. mil ; 72(2): 102-104, abr.-jun. 2016. ilus
Artigo em Espanhol | IBECS | ID: ibc-154311

RESUMO

El hematoma de la vaina de los rectos es una complicación rara secundaria a la toma de tratamiento anticoagulante y debida a la lesión muscular o rotura de las arterias epigástricas o de sus ramas pudiendo estar asociado a diversos factores. El 'gold standard' para el diagnóstico es la tomografía computarizada. La cirugía es el tratamiento reservado para los casos no resueltos con manejo conservador ni con embolización. A continuación presentamos un caso de una paciente en el postoperatorio de cirugía plástica


The rectus sheath haematoma is a rare complication secondary to taking anticoagulant therapy and due to muscle injury or breakage of the epigastric arteries or their branches may be associated with several factors. The 'gold standard' for the diagnosis is the computed tomography. Surgery is reserved for cases unresolved with conservative management or with embolization treatment. Here is a case of a patient after plastic surgery


Assuntos
Humanos , Feminino , Idoso , Neoplasias Abdominais/induzido quimicamente , Hematoma/induzido quimicamente , Anticoagulantes/efeitos adversos , Parede Abdominal/patologia , Embolização Terapêutica , Acenocumarol/efeitos adversos , Artérias Epigástricas
10.
Sanid. mil ; 72(1): 38-41, ene.-mar. 2016. ilus
Artigo em Espanhol | IBECS | ID: ibc-150948

RESUMO

Se presenta un nuevo caso de Síndrome de GAPO con otros antecedentes personales no descritos hasta ahora, su motivo de ingreso y evolución. El Síndrome de GAPO es una entidad prácticamente desconocida con sólo 35 casos en el mundo. Gracias a los casos comentados por los distintos autores está aumentando el conocimiento sobre posibles asociaciones con otras entidades o enfermedades, lo que apoya el estudio completo ante cada nuevo diagnóstico de Síndrome de GAPO


We report one case of GAPO syndrome with other personal history not described so far, its reason for admission and evolution. GAPO syndrome is an unknown entity with only 35 cases worldwide. Thanks to the cases discussed by other authors is increasing awareness of potential partnerships with other entities or diseases, supporting the full study on each new diagnosis of GAPO síndrome


Assuntos
Humanos , Masculino , Adulto , Desenvolvimento Ósseo/genética , Desenvolvimento Ósseo/fisiologia , Doenças do Desenvolvimento Ósseo/congênito , Doenças do Desenvolvimento Ósseo/complicações , Doenças do Desenvolvimento Ósseo/cirurgia , Alopecia/complicações , Alopecia/diagnóstico , Alopecia/terapia , Anodontia/diagnóstico , Anodontia/cirurgia , Anodontia/terapia , Atrofia Óptica/complicações , Atrofia Óptica/genética , Síndromes da Apneia do Sono/complicações , Síndromes da Apneia do Sono/diagnóstico , Síndromes da Apneia do Sono/terapia , Deficiência Intelectual/terapia , Doenças Genéticas Inatas/complicações , Doenças Genéticas Inatas/genética
14.
An. pediatr. (2003. Ed. impr.) ; 82(4): 222-227, abr. 2015. tab
Artigo em Espanhol | IBECS | ID: ibc-135366

RESUMO

OBJETIVO: El objetivo principal del estudio fue evaluar desde Atención Primaria la repercusión del programa preventivo recomendado en la población afectada de enfermedad falciforme: profilaxis antibiótica, vacunaciones y educación sanitaria, tras la implantación del programa de cribado neonatal universal de anemia falciforme en la Comunidad de Madrid. PACIENTES Y MÉTODOS: Se realizó un estudio transversal observacional con recogida de información retrospectiva de una cohorte de niños con enfermedad falciforme diagnosticados por la prueba de cribado neonatal en la Comunidad de Madrid. RESULTADOS: Se obtuvieron datos de una muestra de 20 pacientes. El 95% de ellos fueron diagnosticados por la prueba de cribado neonatal realizado entre los 5 y 13 días de vida. La edad media de los pacientes cuando se realizó el estudio fue de 39 meses. En el seguimiento de estos pacientes desde Atención Primaria, se objetivó un cumplimiento de la profilaxis antibiótica del 90% y una cobertura del calendario vacunal oficial del 85%. La cobertura de vacunas específicas: 85% neumococo 23V, 50% gripe y 15% hepatitis A. El reconocimiento de haber recibido educación sanitaria solo alcanzó a una de cada 4 familias. CONCLUSIONES: En el seguimiento de los pacientes con anemia falciforme en Atención Primaria, se objetivó un aceptable cumplimiento de la profilaxis antibiótica, pero unas bajas coberturas tanto de las inmunizaciones sistemáticas como de las inmunizaciones específicas. La cobertura de educación sanitaria fue muy baja. Para mejorar estos parámetros, sería necesaria una mayor coordinación e implicación de los profesionales de Atención Primaria con el fin de que estos pacientes tengan un seguimiento adecuado y que ello se traduzca en una disminución de las complicaciones de esta enfermedad y una mejoría en la calidad de vida


OBJECTIVES: The main aim of the study was to assess the effects of the recommended preventive program in the population affected with Sickle Cell Disease in Primary Care. The program included, antibiotic prophylaxis, immunizations and health education, following the introduction of universal neonatal screening program for Sickle Cell Disease in the Community of Madrid. PATIENTS AND METHODS: A cross-sectional observational study was performed with retrospective data collected from a cohort of newborns with Sickle Cell Disease diagnosed by neonatal screening test in the Community of Madrid. RESULTS: From the data obtained from a sample of 20 patients, it was found that 95% had been diagnosed by the newborn screening test performed between 5 and 13 days of life. The mean age was 39 months when the study was conducted. During follow-up, from Primary Care Paediatric clinic, it was observed that the compliance for antibiotic prophylaxis was 90%, and the coverage for the official vaccination schedule was 85%. Specific vaccine coverage as a risk population was highly variable (85% for pneumococcal 23V, 50% for influenza, and 15% for hepatitis A). Health education only reached one in every four families. CONCLUSIONS: Acceptable compliance with antibiotic prophylaxis was observed during the follow-up of patients with sickle cell disease in Primary Care, but a low coverage of routine immunization, as well as specific immunizations. Coverage of health education was very low. Improving these parameters would require greater coordination and involvement of Primary Care Professionals so that these patients were followed up appropriately, and could be translated into a reduction of disease complications and an improvement in the quality of life of these patients


Assuntos
Humanos , Masculino , Feminino , Recém-Nascido , Pré-Escolar , Lactente , Anemia Falciforme/terapia , Triagem Neonatal , Anemia Falciforme/complicações , Anemia Falciforme/diagnóstico , Estudos Transversais , Estudos Retrospectivos , Seguimentos , Atenção Primária à Saúde
15.
An Pediatr (Barc) ; 82(4): 222-7, 2015 Apr.
Artigo em Espanhol | MEDLINE | ID: mdl-24840253

RESUMO

OBJECTIVES: The main aim of the study was to assess the effects of the recommended preventive program in the population affected with Sickle Cell Disease in Primary Care. The program included, antibiotic prophylaxis, immunizations and health education, following the introduction of universal neonatal screening program for Sickle Cell Disease in the Community of Madrid. PATIENTS AND METHODS: A cross-sectional observational study was performed with retrospective data collected from a cohort of newborns with Sickle Cell Disease diagnosed by neonatal screening test in the Community of Madrid. RESULTS: From the data obtained from a sample of 20 patients, it was found that 95% had been diagnosed by the newborn screening test performed between 5 and 13 days of life. The mean age was 39 months when the study was conducted. During follow-up, from Primary Care Paediatric clinic, it was observed that the compliance for antibiotic prophylaxis was 90%, and the coverage for the official vaccination schedule was 85%. Specific vaccine coverage as a risk population was highly variable (85% for pneumococcal 23V, 50% for influenza, and 15% for hepatitis A). Health education only reached one in every four families. CONCLUSIONS: Acceptable compliance with antibiotic prophylaxis was observed during the follow-up of patients with sickle cell disease in Primary Care, but a low coverage of routine immunization, as well as specific immunizations. Coverage of health education was very low. Improving these parameters would require greater coordination and involvement of Primary Care Professionals so that these patients were followed up appropriately, and could be translated into a reduction of disease complications and an improvement in the quality of life of these patients.


Assuntos
Anemia Falciforme/terapia , Anemia Falciforme/complicações , Anemia Falciforme/diagnóstico , Pré-Escolar , Estudos Transversais , Feminino , Seguimentos , Fidelidade a Diretrizes , Humanos , Lactente , Recém-Nascido , Masculino , Triagem Neonatal , Atenção Primária à Saúde , Estudos Retrospectivos
16.
Int J Food Microbiol ; 173: 89-98, 2014 Mar 03.
Artigo em Inglês | MEDLINE | ID: mdl-24412963

RESUMO

The aim of this study was to evaluate the diversity of black aspergilli isolated from berries from different agroclimatic regions of Spain. Growth characterization (in terms of temperature and water activity requirements) of Aspergillus carbonarius, Aspergillus tubingensis and Aspergillus niger was carried out on synthetic grape medium. A. tubingensis and A. niger showed higher maximum temperatures for growth (>45 °C versus 40-42 °C), and lower minimum aw requirements (0.83 aw versus 0.87 aw) than A. carbonarius. No differences in growth boundaries due to their geographical origin were found within A. niger aggregate isolates. Conversely, A. carbonarius isolates from the hotter and drier region grew and produced OTA at lower aw than other isolates. However, little genetic diversity in A. carbonarius was observed for the microsatellites tested and the same sequence of ß-tubulin gene was observed; therefore intraspecific variability did not correlate with the geographical origin of the isolates or with their ability to produce OTA. Climatic change prediction points to drier and hotter climatic scenarios where A. tubingensis and A. niger could be even more prevalent over A. carbonarius, since they are better adapted to extreme high temperature and drier conditions.


Assuntos
Aspergillus/fisiologia , Microbiologia de Alimentos , Vitis/microbiologia , Aspergillus/genética , Aspergillus/crescimento & desenvolvimento , Genes Fúngicos/genética , Variação Genética , Repetições de Microssatélites/genética , Ocratoxinas , Espanha , Temperatura , Tubulina (Proteína)/genética , Água
17.
Int J Food Microbiol ; 159(2): 167-76, 2012 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-22947301

RESUMO

Ochratoxin A (OTA) has been found in pre-harvest and freshly harvested wheat. Spanish climatic conditions point to Aspergillus species as probably responsible for this OTA. In this study the effectiveness of 5 non-specific antifungal chemicals used on wheat fields (25.9% tebuconazole+60.0% N,N-capramide dimethyl; 12.70% tebuconazole+12.7% prothioconazole+59.5% N,N-amide dimethyldecane; 12.5% epoxiconazole; 12.5% tetraconazole; and 70% thiophanate methyl) and an extract from Equisetum arvense were investigated in vitro on wheat by recording growth (colony size, fungal growth and DNA concentration) and OTA production of two ochratoxigenic isolates of Aspergillus carbonarius and three of A. steynii, simulating current and extreme climatic conditions. Inoculated wheat was incubated under two alternating temperature cycles (20/30°C and 25/35°C) with photoperiod (14/10h lightness/darkness), and two moisture levels (40 and 25%). The Aspergillus species tested seemed to be able to persist in predicted future climatic conditions, in particular, A. steynii, a high OTA producer. Azoles were effective in controlling the growth of A. carbonarius and A. steynii, and this effectiveness may not be compromised by the increase in temperature and decrease of humidity. However, azoles are not useful for the prevention of OTA accumulation, which could be only reduced in A. carbonarius under non-extreme conditions. Although some adjustment will probably be required, further studies should be conducted in the field, since the antifungals used in this study are applied at flowering and not directly on the grain. Moreover, timing of antifungal application may need to be optimized. Finally, Equisetum extract showed promising results as an antifungal, however further work to adjust the applied concentrations is required.


Assuntos
Antifúngicos/farmacologia , Aspergillus/efeitos dos fármacos , Contaminação de Alimentos/prevenção & controle , Triticum/microbiologia , Aspergillus/crescimento & desenvolvimento , Aspergillus/metabolismo , Clorobenzenos , Grão Comestível , Meio Ambiente , Microbiologia de Alimentos , Umidade , Ocratoxinas/metabolismo , Temperatura , Triazóis/farmacologia
18.
Sanid. mil ; 68(3): 168-171, jul.-sept. 2012. ilus
Artigo em Espanhol | IBECS | ID: ibc-109674

RESUMO

Se presenta el caso de una mujer de 72 años de edad, ingresada en la UCI con diagnóstico de Síndrome Coronario Agudo Sin Elevación del ST (SCASEST). El cateterismo cardíaco demostró la integridad de su árbol coronario, siendo diagnosticada finalmente de Síndrome de Takotsubo (AU)


This report presents the case of a 72 years-old woman, who was admitted in ICU with a diagnostic of non-ST-segment elevation acute coronary syndrome (NST-ACS). Cardiac catheterization showed a normal coronary angiogram, and the final diagnostic was TakoTsubo Syndrome (AU)


Assuntos
Humanos , Feminino , Idoso , Cardiomiopatia de Takotsubo/tratamento farmacológico , Ansiolíticos/uso terapêutico , Cardiomiopatia de Takotsubo/diagnóstico , Fatores de Risco , Catecolaminas , Eletrocardiografia
20.
Animal ; 6(3): 510-7, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22436231

RESUMO

Since they were first described in 1993, it was found that recombinant variable fragments (rVHHs) of heavy-chain antibodies (HCAbs) from Camelidae have unusual biophysical properties, as well as a special ability to interact with epitopes that are cryptic for conventional Abs. It has been assumed that in vivo raised polyclonal HCAbs (pHCAbs) should behave in a similar manner than rVHHs; however, this assumption has not been tested sufficiently. Furthermore, our own preliminary work on a single serum sample from a llama immunized with a ß-lactamase, has suggested that pHCAbs have no special ability to down-modulate catalytic activity. In this work, we further explored the interaction of pHCAbs from four llamas raised against two microbial enzymes and analyzed it within a short and a long immunization plan. The relative contribution of pHCAbs to serum titer was found to be low compared with that of the most abundant conventional subisotype (IgG(1)), during the whole immunization schedule. Furthermore, pHCAbs not only failed to inhibit the enzymes, but also activated one of them. Altogether, these results suggest that raising high titer inhibitory HCAbs is not a straightforward strategy - neither as a biotechnological strategy nor in the biological context of an immune response against infection - as raising inhibitory rVHHs.


Assuntos
Camelídeos Americanos/imunologia , Cadeias Pesadas de Imunoglobulinas/imunologia , beta-Lactamases/metabolismo , Animais , Antígenos/imunologia , Ácido Aspártico Proteases/imunologia , Ácido Aspártico Proteases/metabolismo , Camelídeos Americanos/sangue , Ensaio de Imunoadsorção Enzimática/veterinária , Escherichia coli/enzimologia , Imunização/veterinária , Imunoglobulina G/imunologia , Imunoglobulina G/metabolismo , Cadeias Pesadas de Imunoglobulinas/metabolismo , Mucor/enzimologia , Dinâmica não Linear , Proteínas Recombinantes/imunologia , Proteínas Recombinantes/metabolismo , beta-Lactamases/imunologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...