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1.
Domest Anim Endocrinol ; 74: 106578, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33137654

RESUMO

Lipid disorders are relatively common in dogs. Hyperlipidemia can be primary or secondary to other diseases. In humans, fenofibrate is used to control hypertriglyceridemia. In dogs, there are no studies evaluating fenofibrate in hypertriglyceridemia. The aim of the study was to evaluate the safety and efficacy of fenofibrate to control severe hypertriglyceridemia in dogs. A total of 124 dogs (n = 124) with severe hypertriglyceridemia (>300 mg/dL, 3.39 mmol/L) were randomly distributed in the fenofibrate group (n = 64) and the diet group (n = 60). Dogs of the fenofibrate group were treated with fenofibrate (10 mg/Kg) once daily. Dogs of the diet group were treated with low-fat diet (10%). Serum triglycerides (TGs), total cholesterol (TC), liver enzymes, and creatine kinase concentrations were evaluated, before and after 1 mo of medical or dietary treatment. Triglyceride concentrations were reduced with fenofibrate (P < 0.001), and 85.93% of the dogs normalized their levels. Triglyceride concentrations also decreased with low-fat diet (P < 0.001), but only 26.6% of the dogs normalized their levels. Triglyceride concentrations were reduced with fenofibrate (P < 0.01) and with low-fat diet (P < 0.01). Of the cases with hypercholesterolemia, 53.7% and 50% of the dogs normalized their TC concentrations, with fenofibrate and diet, respectively. No significant adverse effects were observed (3% showed diarrhea). Fenofibrate was safe and effective in reducing and normalizing TG concentrations in dogs with severe hypertriglyceridemia, regardless of the cause of hyperlipidemia. The low-fat diet was effective in reducing, but not normalizing, TG concentrations. Fenofibrate and low-fat diet were effective in reducing TC concentrations. This is the first study evaluating fibrates in dogs with severe hypertriglyceridemia and comparing results with a low-fat diet.


Assuntos
Dieta com Restrição de Gorduras/veterinária , Doenças do Cão/tratamento farmacológico , Fenofibrato/uso terapêutico , Hipertrigliceridemia/veterinária , Hipolipemiantes/uso terapêutico , Animais , Doenças do Cão/sangue , Cães , Fenofibrato/efeitos adversos , Regulação da Expressão Gênica/efeitos dos fármacos , Transportador de Glucose Tipo 4/genética , Transportador de Glucose Tipo 4/metabolismo , Hipertrigliceridemia/tratamento farmacológico
2.
Open Vet J ; 6(1): 6-14, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26862515

RESUMO

The objective of the present study was to compare the effects of isotretinoin 9-cis (RA9-cis) as a post-surgery treatment of thyroid carcinoma to a traditional treatment (doxorubicin) and no treatment. Owners who did not want their dogs to receive treatment were placed into the control group A (GA; n=10). The remaining dogs were randomly placed into either group B (GB; n=12) and received doxorubicin at a dose of 30 mg/m(2) every three weeks, for six complete cycles or group C (GC; n=15) and treated with RA9-cis at a dose of 2 mg/kg/day for 6 months. The time of the recurrence was significantly shorter in the GA and GB compared to GC (P=0.0007; P=0.0015 respectively), while we did not detect differences between GA and GB. The hazard ratio of recurrence between GA and GB compared to GC were 7.25 and 5.60 times shorter, respectively. We did not detect any differences between the other groups. The risk ratio of recurrence was 2.0 times higher in GA compared to GC and 2.1 times higher in GB compared to GC. The type of carcinoma had an effect on time of survival with follicular carcinomas having an increased mean survival time than follicular-compact carcinomas (P<0.0001) and follicular-compact carcinomas had a longer mean survival time than compact carcinomas. The interaction among treatment and type was significant, but survival time in follicular carcinomas did not differ between treatments. In follicular-compact carcinomas the survival time of GC was greater than GB (P<0.05), but we did not detect a difference between GA and GB. In conclusion, this study shows that the use of surgery in combination with RA9-cis treatment significantly increases survival rate and decreases the time to tumor recurrence when compared to doxorubicin treated or untreated dogs. The histological type of carcinoma interacted with treatment for time to recurrence and survival time, with more undifferentiated carcinomas having a worse prognosis than differentiated carcinomas.

3.
Res Vet Sci ; 97(2): 211-7, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25128418

RESUMO

The incretin glucagon-like peptide 1 (GLP-1) enhances insulin secretion. The aim of this study was to assess GLP-1, glucose and insulin concentrations, Homeostatic Model Assessment (HOMA insulin sensitivity and HOMA ß-cell function) in dogs with pituitary-dependent hyperadrenocorticism (PDH), and compare these values with those in normal and obese dogs. The Oral Glucose Tolerance Test was performed and the glucose, GLP-1 and insulin concentrations were evaluated at baseline, and after 15, 30, 60 and 120 minutes. Both basal concentration and those corresponding to the subsequent times, for glucose, GLP-1 and insulin, were statistically elevated in PDH dogs compared to the other groups. Insulin followed a similar behaviour together with variations of GLP-1. HOMA insulin sensitivity was statistically decreased and HOMA ß-cell function increased in dogs with PDH. The higher concentrations of GLP-1 in PDH could play an important role in the impairment of pancreatic ß-cells thus predisposing to diabetes mellitus.


Assuntos
Hiperfunção Adrenocortical/veterinária , Doenças do Cão/fisiopatologia , Cães/fisiologia , Peptídeo 1 Semelhante ao Glucagon/fisiologia , Glucose/metabolismo , Homeostase/fisiologia , Obesidade/veterinária , Hiperfunção Adrenocortical/metabolismo , Hiperfunção Adrenocortical/fisiopatologia , Animais , Glicemia/metabolismo , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/metabolismo , Doenças do Cão/metabolismo , Feminino , Peptídeo 1 Semelhante ao Glucagon/sangue , Teste de Tolerância a Glucose/veterinária , Insulina/sangue , Masculino , Obesidade/metabolismo , Obesidade/fisiopatologia , Hipersecreção Hipofisária de ACTH/metabolismo , Hipersecreção Hipofisária de ACTH/fisiopatologia , Hipersecreção Hipofisária de ACTH/veterinária , Fatores de Risco , Fatores de Tempo
4.
Vaccine ; 31(51): 6136-43, 2013 12 09.
Artigo em Inglês | MEDLINE | ID: mdl-23850416

RESUMO

OBJECTIVE: The investigational AS04-adjuvanted herpes simplex virus type 2 (HSV-2) glycoprotein D (gD2) subunit prophylactic vaccine ('HSV vaccine'; GlaxoSmithKline Vaccines) has been shown to be well tolerated in adults, but limited data exist for pre-teen and adolescent girls, a likely target population. The primary objective of this study was to compare the occurrence of serious adverse events (SAEs) over 12 months between HSV vaccine recipients and saline recipients (placebo control group) in pre-teen and adolescent girls. The immunogenicity of the HSV vaccine was also assessed. METHODS: Healthy girls aged 10-17 years, stratified by age (10-15 years; 16-17 years), were randomised 2:1:1 to receive the HSV vaccine, a hepatitis A vaccine (Havrix™; HAV control) or placebo (saline) according to a 0-, 1-, 6-month schedule. Participants and study personnel not involved in the preparation or administration of vaccines were blinded to treatment. Safety and immunogenicity analyses were performed overall and by age (10-15 years; 16-17 years) and HSV serostatus. RESULTS: No statistically significant difference in the percentage of subjects with SAEs was observed between the HSV and saline group, or between the HSV and pooled control (HAV and saline) groups. The HSV vaccine was well tolerated, although a higher incidence of solicited local symptoms was observed in the HSV group than in the control group. Neither age nor HSV serostatus at the time of study entry had an impact on the safety profile of this vaccine. The HSV vaccine was immunogenic regardless of pre-vaccination HSV serostatus. Higher anti-gD geometric mean concentrations were observed in HSV-1 seropositive participants than in HSV-1 seronegative participants. CONCLUSION: The HSV vaccine had an acceptable safety profile, and was well tolerated and immunogenic when administered to girls aged 10-17 years regardless of age or HSV pre-vaccination serostatus.


Assuntos
Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , Herpes Genital/prevenção & controle , Vacinas contra Herpesvirus/efeitos adversos , Vacinas contra Herpesvirus/imunologia , Adolescente , Criança , Método Duplo-Cego , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Feminino , Herpes Genital/imunologia , Herpesvirus Humano 2/imunologia , Vacinas contra Herpesvirus/administração & dosagem , Humanos , Placebos/administração & dosagem , Vacinas de Subunidades Antigênicas/administração & dosagem , Vacinas de Subunidades Antigênicas/efeitos adversos , Vacinas de Subunidades Antigênicas/imunologia , Proteínas do Envelope Viral/imunologia
5.
Schweiz Arch Tierheilkd ; 155(4): 229-32, 2013 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-23531944

RESUMO

In April 2008 a Franches-Montagnes colt was born with an unusual coat colour phenotype which had never been observed in that population before. The foal showed extended white markings on body and legs, a white head and blue eyes. As both parents have an unremarkable bay coat colour phenotype, a de novo mutation was expected in the offspring and a candidate gene approach revealed a spontaneous mutation in the microphthalmia associated transcription factor gene (MITF). A detailed clinical examination in 2010 indicated an impaired hearing capacity. As in the American Paint Horse large white facial markings in combination with blue eyes are associated with deafness, the hearing capacity of the stallion was closer examined performing brainstem auditory-evoked responses (BAER). The BAER confirmed bilateral deafness in the Franches-Montagnes colt. It is assumed that the deafness is caused by a melanocyte deficiency caused by the MITF gene mutation. Unfortunately, due to castration of the horse, the causal association between the mutation in the MITF gene and clinical findings cannot be confirmed by experimental matings.


Assuntos
Surdez/veterinária , Cor de Cabelo/genética , Doenças dos Cavalos/genética , Cavalos/genética , Fator de Transcrição Associado à Microftalmia/genética , Mutação , Animais , Surdez/genética , Potenciais Evocados Auditivos do Tronco Encefálico , Cor de Olho/genética , Cavalos/anatomia & histologia , Masculino
6.
Nucleic Acids Res ; 41(Database issue): D530-5, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23161678

RESUMO

The Gene Ontology (GO) Consortium (GOC, http://www.geneontology.org) is a community-based bioinformatics resource that classifies gene product function through the use of structured, controlled vocabularies. Over the past year, the GOC has implemented several processes to increase the quantity, quality and specificity of GO annotations. First, the number of manual, literature-based annotations has grown at an increasing rate. Second, as a result of a new 'phylogenetic annotation' process, manually reviewed, homology-based annotations are becoming available for a broad range of species. Third, the quality of GO annotations has been improved through a streamlined process for, and automated quality checks of, GO annotations deposited by different annotation groups. Fourth, the consistency and correctness of the ontology itself has increased by using automated reasoning tools. Finally, the GO has been expanded not only to cover new areas of biology through focused interaction with experts, but also to capture greater specificity in all areas of the ontology using tools for adding new combinatorial terms. The GOC works closely with other ontology developers to support integrated use of terminologies. The GOC supports its user community through the use of e-mail lists, social media and web-based resources.


Assuntos
Bases de Dados Genéticas , Genes , Anotação de Sequência Molecular , Vocabulário Controlado , Internet , Filogenia
7.
Schweiz Arch Tierheilkd ; 154(9): 381-8, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22923322

RESUMO

Fifteen cows with milk fever were treated with 500ml of 40 % calcium borogluconate (group A) administered intravenously. Fifteen other cows with milk fever received the same treatment, supplemented with 500ml of 10 % sodium phosphate administered intravenously, and 80g calcium as calcium lactate and 70g inorganic phosphorus as sodium phosphate administered orally in drinking water. The cows were monitored and blood samples collected for 3 days to measure the concentrations of total and ionized calcium, inorganic phosphorus and magnesium and the activity of creatine kinase. The two groups did not differ significantly with respect to the course of the disease. In each group 14 cows were cured. A rapid and significant increase in serum calcium concentration from the hypo- to the hypercalcaemic range occurred in both groups within 10min of the start of treatment, followed by a slow and steady decrease to the hypocalcaemic range. Calcium lactate did not prevent the calcium concentration from returning to the hypocalcaemic range, and the calcium profiles of the two groups did not differ significantly. As expected, treatment had little effect on the concentration of inorganic phosphorus in group A. In group B, treatment caused a rapid increase in the concentration of inorganic phosphorus to a maximum 20min after the start of treatment. This was followed by a slow decrease in the phosphorus concentration to the normophosphataemic range. Our findings confirmed that combined intravenous and oral administration of sodium phosphate in cows with periparturient paresis attributable to hypocalcaemia and hypophosphataemia results in a rapid and sustained increase in serum phosphorus, but not in serum calcium concentration. This modified therapy did not improve the success rate of milk fever treatment and further studies are needed to improve treatment of periparturient paresis.


Assuntos
Cálcio/administração & dosagem , Paresia Puerperal/tratamento farmacológico , Fósforo/administração & dosagem , Administração Intravenosa , Administração Oral , Animais , Cálcio/sangue , Bovinos , Creatina Quinase/sangue , Eletrólitos/sangue , Feminino , Paresia Puerperal/sangue , Fósforo/sangue , Gravidez , Resultado do Tratamento
8.
Schweiz Arch Tierheilkd ; 154(6): 233-8, 2012 Jun.
Artigo em Alemão | MEDLINE | ID: mdl-22653697

RESUMO

The oral administration of calcium lactate for prophylaxis of bovine parturient paresis has been promoted for a number of years. The goal of the present study was to investigate the effect of this treatment on the serum concentrations of calcium, inorganic phosphorus and magnesium in parturient cows. Five fresh calved cows were given a drench containing calcium lactate and 5 control cows received the same drench but without calcium lactate. There were no significant differences in the serum concentrations of total and ionised calcium and magnesium between treated and control cows within 24 hours of treatment. Because the calcium lactate drench did not significantly affect calcium concentrations in the blood of fresh cows, it appears highly questionable whether the administration of calcium lactate decreases the risk of bovine parturient paresis. Based on our results, the oral administration of calcium lactate can not be recommended for prophylaxis of bovine parturient paresis.


Assuntos
Compostos de Cálcio/uso terapêutico , Doenças dos Bovinos/tratamento farmacológico , Doenças dos Bovinos/prevenção & controle , Lactatos/uso terapêutico , Paresia Puerperal/tratamento farmacológico , Paresia Puerperal/prevenção & controle , Período Pós-Parto , Administração Oral , Animais , Cálcio/sangue , Bovinos , Doenças dos Bovinos/sangue , Feminino , Magnésio/sangue , Paresia Puerperal/sangue , Fósforo/sangue , Gravidez , Fatores de Tempo , Resultado do Tratamento
9.
Res Vet Sci ; 93(3): 1195-202, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22381588

RESUMO

In this study, two populations of dogs with pituitary dependent hypercortisolism (PDH) were compared over a 2-year period. One group had normal vision (Group A, n=27) and one group was blind (Group B, n=20). Group B was characterised by the rapid appearance of the clinical signs of PDH that precede blindness. We found increases in pre-adrenocorticotropic hormone cortisol (P=0.002), IL-6 (P=0.0001), insulin, and insulin sensitivity (detected with the Homeostatic Model Assessment, P<0.0001) in Group B but not in Group A. The nitric oxide (NO) and the total adiponectin concentrations decreased (P=0.0001 and P=0.02, respectively) in Group B versus Group A. The IL-6 and insulin concentrations and the HOMA-A index were positively correlated with the cortisol concentration and were negatively correlated with the NO concentration. With the exception of adiponectin, the other variables were associated with blindness. We concluded that blindness in PDH is a haemodynamic event associated with metabolic changes, with the increase in the IL-6 concentration and the decrease in the NO concentration affecting the retinal vasculature and producing a high risk of vision loss.


Assuntos
Adiponectina/metabolismo , Cegueira/veterinária , Doenças do Cão/metabolismo , Insulina/metabolismo , Interleucina-6/metabolismo , Óxido Nítrico/metabolismo , Adiponectina/genética , Animais , Cegueira/metabolismo , Cães , Regulação da Expressão Gênica , Insulina/genética , Interleucina-6/genética , Óxido Nítrico/genética , Hipersecreção Hipofisária de ACTH/metabolismo , Hipersecreção Hipofisária de ACTH/veterinária
10.
Res Vet Sci ; 92(3): 387-92, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21575979

RESUMO

Pituitary dependent hyperadrenocorticism (PDH) shows a high morbidity and blindness is one of its complications. Compression of the optic chiasm (OC) by the hypophysis adenoma is one of the causes. Another cause could be due to vascular and metabolic alterations of the PDH. Out of a total of 70 dogs with confirmed diagnosis of PDH, 12/70 showed blindness. In only 2/12 the OC was compromised. Electroretinography in dogs without the OC being compromised showed altered A and B wave patterns. Ophthalmological Doppler showed an alteration of the blood flow only in blind dogs without OC compression. Cortisol concentrations (Co), triglycerides (Tg) and glycaemia (G) were greater in 10 dogs with non-compressive blindness vs. dogs with conserved vision. Loss of vision correlated with the increase in these variables. Blindness in dogs with PDH would be related to changes in retinal blood flow, associated to higher Co, Tg and G concentrations.


Assuntos
Hiperfunção Adrenocortical/veterinária , Cegueira/veterinária , Glicemia/fisiologia , Doenças do Cão/etiologia , Hidrocortisona/sangue , Hipófise/metabolismo , Hiperfunção Adrenocortical/sangue , Hiperfunção Adrenocortical/metabolismo , Animais , Cães , Feminino , Masculino , Vasos Retinianos/fisiologia , Triglicerídeos/sangue
11.
Res Vet Sci ; 93(1): 114-20, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21807392

RESUMO

Diabetes is often associated with pituitary-dependent hyperadrenocorticism (PDH). Hypercortisolism causes insulin resistance and affects ß-cell function. The purpose of this study was to test if daily administration of a long-acting insulin analogue during the first month of anti-PDH treatment can prevent progress to diabetes in these animals. Twenty-six PDH dogs were divided into three groups: one group with glycaemia <5.83 mmol/L and two groups with glycaemia >5.83 mmol/L and <9.35 mmol/L, one of which received insulin detemir during 4 months. Dogs with glycaemia <5.83 mmol/L and those with glycaemia >5.83 mmol/L which received insulin did not develop diabetes. In the non-insulin group, 6/7 dogs developed diabetes after the third month. There is a 13-fold higher risk of diabetes in dogs with glycaemia >5.83 mmol/L and no insulin treatment. Administering insulin detemir to dogs with PDH and glycaemia >5.83 mmol/L could prevent progression to diabetes.


Assuntos
Hiperfunção Adrenocortical/veterinária , Glicemia/análise , Diabetes Mellitus/prevenção & controle , Doenças do Cão/tratamento farmacológico , Insulina de Ação Prolongada/uso terapêutico , Insulina/sangue , Hiperfunção Adrenocortical/complicações , Hormônio Adrenocorticotrópico/sangue , Animais , Colesterol/sangue , Diabetes Mellitus/etiologia , Doenças do Cão/fisiopatologia , Cães , Feminino , Insulina Detemir , Triglicerídeos/sangue
12.
Res Vet Sci ; 88(1): 33-40, 2010 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19683322

RESUMO

Pituitary-dependent hyperadrenocorticism (PDH) is frequent in dogs. Little is known about its presentation in different age groups and its characteristics. Dividing the population under study (n=107) into three age groups we observed that 11.2% were young, 51.4% adults and 37.4% aged. Using magnetic resonance, pituitary tumours were intra-sellar (IS) in 30.8% and extra-sellar (ES) in 62.6% and the pars intermedia (PI) was affected in 6.5%. ES are predominant in females and IS in males (p<0.0001). In the adult-aged population, the ES and PI are predominant, while in the young, the IS predominate (p<0.0001). ACTH concentration was greater in the ES vs. IS (p<0.05). alpha-MSH did not present significant differences according to tumour size, showing a negative correlation (r=-0.47; p<0.01) vs. ACTH. Differences in adenoma size according to gender and their age-related frequency of apparition could be because of different origins of the corticotrophinoma.


Assuntos
Adenoma Hipofisário Secretor de ACT/veterinária , Hiperfunção Adrenocortical/veterinária , Hormônio Adrenocorticotrópico/metabolismo , Doenças do Cão/patologia , Neoplasias Hipofisárias/veterinária , alfa-MSH/metabolismo , Adenoma Hipofisário Secretor de ACT/patologia , Adenoma Hipofisário Secretor de ACT/fisiopatologia , Hiperfunção Adrenocortical/patologia , Hiperfunção Adrenocortical/fisiopatologia , Fatores Etários , Animais , Doenças do Cão/fisiopatologia , Cães , Feminino , Imageamento por Ressonância Magnética , Masculino , Hipófise/metabolismo , Hipófise/patologia , Hipófise/fisiopatologia , Neoplasias Hipofisárias/patologia , Neoplasias Hipofisárias/fisiopatologia , Estudos Retrospectivos , Fatores Sexuais
13.
Lancet ; 374(9706): 1975-85, 2009 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-19962185

RESUMO

BACKGROUND: Prophylactic human papillomavirus (HPV) vaccines have to provide sustained protection. We assessed efficacy, immunogenicity, and safety of the HPV-16/18 AS04-adjuvanted vaccine up to 6.4 years. METHODS: Women aged 15-25 years, with normal cervical cytology, who were HPV-16/18 seronegative and oncogenic HPV DNA-negative (14 types) at screening participated in a double-blind, randomised, placebo-controlled initial study (n=1113; 560 vaccine group vs 553 placebo group) and follow-up study (n=776; 393 vs 383). 27 sites in three countries participated in the follow-up study. Cervical samples were tested every 6 months for HPV DNA. Management of abnormal cytologies was prespecified, and HPV-16/18 antibody titres were assessed. The primary objective was to assess long-term vaccine efficacy in the prevention of incident cervical infection with HPV 16 or HPV 18, or both. We report the analyses up to 6.4 years of this follow-up study and combined with the initial study. For the primary endpoint, the efficacy analysis was done in the according-to-protocol (ATP) cohort; the analysis of cervical intraepithelial neoplasia grade 2 and above (CIN2+) was done in the total vaccinated cohort (TVC). The study is registered with ClinicalTrials.gov, number NCT00120848. FINDINGS: For the combined analysis of the initial and follow-up studies, the ATP efficacy cohort included 465 women in the vaccine group and 454 in the placebo group; the TVC included 560 women in the vaccine group and 553 in the placebo group. Vaccine efficacy against incident infection with HPV 16/18 was 95.3% (95% CI 87.4-98.7) and against 12-month persistent infection was 100% (81.8-100). Vaccine efficacy against CIN2+ was 100% (51.3-100) for lesions associated with HPV-16/18 and 71.9% (20.6-91.9) for lesions independent of HPV DNA. Antibody concentrations by ELISA remained 12-fold or more higher than after natural infection (both antigens). Safety outcomes were similar between groups: during the follow-up study, 30 (8%) participants reported a serious adverse event in the vaccine group versus 37 (10%) in the placebo group. None was judged related or possibly related to vaccination, and no deaths occurred. INTERPRETATION: Our findings show excellent long-term efficacy, high and sustained immunogenicity, and favourable safety of the HPV-16/18 AS04-adjuvanted vaccine up to 6.4 years. FUNDING: GlaxoSmithKline Biologicals (Belgium).


Assuntos
Infecções por Papillomavirus/prevenção & controle , Vacinas contra Papillomavirus/imunologia , Neoplasias do Colo do Útero/prevenção & controle , Adolescente , Método Duplo-Cego , Feminino , Seguimentos , Humanos , Infecções por Papillomavirus/imunologia , Infecções por Papillomavirus/virologia , Vacinas contra Papillomavirus/administração & dosagem , Placebos , Resultado do Tratamento , Neoplasias do Colo do Útero/imunologia , Neoplasias do Colo do Útero/virologia , Adulto Jovem
14.
Res Vet Sci ; 86(2): 223-9, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18692856

RESUMO

Daytime variations in ACTH and plasma cortisol were studied in healthy dogs and in dogs with pituitary-dependent hypercortisolism (PDH), before and after treatment with retinoic acid. In control dogs ACTH showed a higher concentration at 8.00 AM and between 2.00 and 6.00 PM, with the lowest concentration registered at 10.00 AM (p<0.05 vs. 8.00 AM and 2.00 PM and p<0.01 vs. 4.00 PM). Cortisol did not show significant differences. In dogs with PDH, ACTH was lower at 8.00 AM (ACTH: p<0.01 vs. 2.00 and 4.00 PM; and p<0.05 vs. 6.00 PM). The lowest cortisol concentration was registered at 8.00 AM and 8.00 PM and the highest at 4.00 PM (p<0.05 vs. 8.00 AM and p<0.01 vs. 8.00 PM). After treatment, the lowest ACTH concentration was registered at 10.00 AM (p<0.01 vs. 2.00 and 4.00 PM). To conclude, the adrenal is desensitized in PDH possibly showing negative in diagnostic tests.


Assuntos
Hormônio Adrenocorticotrópico/sangue , Síndrome de Cushing/veterinária , Doenças do Cão/sangue , Cães/sangue , Hidrocortisona/sangue , Tretinoína/uso terapêutico , Animais , Ritmo Circadiano/efeitos dos fármacos , Síndrome de Cushing/sangue , Síndrome de Cushing/tratamento farmacológico , Doenças do Cão/tratamento farmacológico , Feminino , Masculino , Estatísticas não Paramétricas
15.
Res Vet Sci ; 85(1): 26-34, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17910968

RESUMO

The treatment of pituitary-dependent hyperadrenocorticism (PDH) in dogs has for a long time been focused on inhibiting the adrenal gland using drugs such as o-p'-DDD, Ketoconazole and Trilostane, without attacking the primary cause: the corticotrophinoma. Corticotroph cells can express the D2 dopaminergic receptor; therefore cabergoline (Cbg) could be effective as a treatment. Follow-up over 4 years was carried out in 40 dogs with PDH that were treated with Cbg (0.07 mg/kg/week. Out of the 40 dogs, 17 responded to Cbg (42.5%). A year after the treatment, there was a significant decrease in ACTH (p<0.0001), alpha-MSH (p<0.01), urinary cortisol/creatinine ratio (p<0.001), and of the tumor size (p<0.0001) evaluated by nuclear magnetic resonance. Dogs responding to Cbg lived significantly longer (p<0.001) than those in the control group. To conclude, Cbg is useful in 42.5% of dogs with PDH, justifying its use as a treatment.


Assuntos
Doenças do Cão/tratamento farmacológico , Agonistas de Dopamina/uso terapêutico , Ergolinas/uso terapêutico , Hipersecreção Hipofisária de ACTH/veterinária , Hormônio Adrenocorticotrópico/metabolismo , Animais , Cabergolina , Cães , Feminino , Cetoconazol/uso terapêutico , Masculino , Hipersecreção Hipofisária de ACTH/tratamento farmacológico , Fatores de Tempo , alfa-MSH/metabolismo
16.
Vaccine ; 19(32): 4710-9, 2001 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-11535321

RESUMO

In an open, randomized, multicenter, controlled clinical trial in the US, 773 adults were administered either a combination hepatitis vaccine (Twinrix: 720 EL.U inactivated hepatitis A antigen and 20 mcg recombinant hepatitis B surface antigen per milliliter) on a 0, 1, 6 month schedule or corresponding monovalent vaccines concurrently (Havrix, 1440 EL.U/ml of hepatitis A antigen at 0, 6 months and Engerix-B, 20 mcg of hepatitis B surface antigen at 0, 1, 6 months). Non-inferiority testing for the primary endpoint, severe soreness, and equivalence testing for the secondary endpoints, anti-HAV seroconversion and anti-HBs seroprotection, showed that safety and immunogenicity were comparable in the two groups.


Assuntos
Vacinas contra Hepatite A/imunologia , Vacinas contra Hepatite B/imunologia , Vacinas Sintéticas/imunologia , Adulto , Eritema/etiologia , Feminino , Gastroenteropatias/etiologia , Cefaleia/etiologia , Anticorpos Anti-Hepatite A , Vacinas contra Hepatite A/efeitos adversos , Anticorpos Anti-Hepatite/biossíntese , Anticorpos Anti-Hepatite/imunologia , Anticorpos Anti-Hepatite B/biossíntese , Anticorpos Anti-Hepatite B/imunologia , Antígenos de Superfície da Hepatite B/imunologia , Vacinas contra Hepatite B/efeitos adversos , Humanos , Esquemas de Imunização , Masculino , Dor/etiologia , Estudos Prospectivos , Segurança , Estados Unidos , Vacinação , Vacinas Combinadas , Vacinas Sintéticas/efeitos adversos
17.
J Infect Dis ; 184(7): 909-13, 2001 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-11509996

RESUMO

A phase 2 clinical trial was conducted to evaluate the antibody responses to bovine parainfluenza virus type 3 (bPIV3) vaccination in young infants. Three groups were tested as follows: placebo (n=66) and 10(5) (n=64) or 10(6) (n=62) TCID(50) of bPIV3. The vaccine or placebo was administered intranasally at ages 2, 4, 6, and 12-15 months, and serum specimens were collected at ages 2, 6, 7, 12-15, and 13-16 months. Serum hemagglutination inhibition (HI) and IgA antibody titers against bPIV3 and human PIV3 (hPIV3) were measured. The results indicate that antibody responses to bPIV3 vaccination are more likely to be detected by the bPIV3 IgA and HI assays than by the hPIV3 IgA and HI assays, that bPIV3-induced antibody response can be differentiated from hPIV3-induced antibody response most reliably by comparing bPIV3 and hPIV3 HI titers, and that bPIV3 vaccine prevents vaccine recipients from developing antibody profiles of hPIV3 primary infection.


Assuntos
Anticorpos Antivirais/sangue , Vírus da Parainfluenza 3 Humana/imunologia , Infecções por Respirovirus/prevenção & controle , Respirovirus/imunologia , Vacinação , Vacinas Virais/administração & dosagem , Administração Intranasal , Anticorpos Antivirais/biossíntese , Método Duplo-Cego , Testes de Inibição da Hemaglutinação , Humanos , Imunoglobulina A/sangue , Lactente , Infecções por Respirovirus/imunologia , Vacinas Atenuadas/administração & dosagem , Vacinas Atenuadas/imunologia , Vacinas Virais/imunologia
18.
Pediatrics ; 108(2): 372-81, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11483802

RESUMO

OBJECTIVE: To evaluate the effects of dietary intake of the long-chain polyunsaturated fatty acids, arachidonic acid (AA), and docosahexaenoic acid (DHA) on multiple indices of infant growth and development. DESIGN: A double-masked, randomized, parallel trial was conducted with term infants fed formulas with or without AA+DHA for 1 year (N = 239). Reference groups of breastfed infants (N = 165) weaned to formulas with and without AA+DHA were also studied. Infants in the formula groups were randomized at

Assuntos
Desenvolvimento Infantil/efeitos dos fármacos , Ácidos Graxos Insaturados/uso terapêutico , Fenômenos Fisiológicos da Nutrição do Lactente , Recém-Nascido Prematuro/crescimento & desenvolvimento , Ácido Araquidônico/administração & dosagem , Ácido Araquidônico/farmacologia , Ácido Araquidônico/uso terapêutico , Aleitamento Materno , Desenvolvimento Infantil/fisiologia , Estudos de Coortes , Ácidos Docosa-Hexaenoicos/administração & dosagem , Ácidos Docosa-Hexaenoicos/farmacologia , Ácidos Docosa-Hexaenoicos/uso terapêutico , Método Duplo-Cego , Ácidos Graxos Insaturados/administração & dosagem , Ácidos Graxos Insaturados/farmacologia , Feminino , Alimentos Fortificados , Humanos , Alimentos Infantis , Recém-Nascido , Recém-Nascido Prematuro/fisiologia , Leite Humano , Análise Multivariada , Estudos Prospectivos
19.
Pediatr Infect Dis J ; 20(2): 153-9, 2001 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-11224833

RESUMO

BACKGROUND: Following widespread use of conjugate pneumococcal vaccine, Neisseria meningitidis likely will become the leading cause of bacterial sepsis and meningitis in US children. This report describes the safety and immunogenicity in US children of four consecutive doses of a meningococcal group C vaccine conjugated to CRM197 via reductive amination (MnCC). METHODS: One hundred six healthy 2-month-old infants received MnCC at 2, 4 and 6 months of age in a randomized, controlled double blind study; children in the other treatment arm were given a 7-valent conjugate pneumococcal vaccine. Parents reenrolled 64 of these children at 12 to 15 months to receive a fourth dose of MnCC. Routine childhood vaccines, including DTP, were coadministered. Temperatures and symptoms were recorded for 3 days after each immunization. Serum enzyme-linked immunosorbent assay IgG and bactericidal antibodies were measured prevaccination and before and 1 month after Doses 3 and 4. RESULTS: Moderate to severe local reactions, defined as erythema or induration > or =2.4 cm or pain that interfered with limb movement was reported after 0 to 3.2% of MnCC injections, depending on the reaction and dose. Fever occurred in 23 to 37% of children, but the contribution of MnCC to the febrile reactions is unknown. Geometric mean concentrations of IgG antibody to group C meningococcal polysaccharide were 3.72 microg/ml after Dose 3 and 8.03 microg/ml after the booster. Geometric mean functional serum bactericidal antibody titers after Doses 3 and 4 were 1:463 and 1:2341, respectively. One hundred percent of children had a serum bactericidal antibody titer of > or =1:64 after three doses and > or = 1:128 after the booster. CONCLUSIONS: The MnCC vaccine had an acceptable safety profile and generated high titers of bactericidal antibody in immunized US infants and toddlers. It appears to be an attractive candidate vaccine for the prevention of serogroup C meningococcal disease in young children.


Assuntos
Vacinas Bacterianas/imunologia , Meningite Meningocócica/prevenção & controle , Neisseria meningitidis/imunologia , Anticorpos Antibacterianos/sangue , Proteínas de Bactérias/imunologia , Vacinas Bacterianas/administração & dosagem , Vacinas Bacterianas/efeitos adversos , Método Duplo-Cego , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Imunização Secundária , Imunoglobulina G/imunologia , Lactente , Masculino , Meningite Meningocócica/imunologia , Vacinas Pneumocócicas/administração & dosagem , Vacinas Pneumocócicas/imunologia , Segurança , Sepse/imunologia , Sepse/prevenção & controle , Estados Unidos , Vacinas Conjugadas/administração & dosagem , Vacinas Conjugadas/efeitos adversos , Vacinas Conjugadas/imunologia
20.
J Am Diet Assoc ; 100(2): 212-7, 2000 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10670394

RESUMO

OBJECTIVE: To evaluate the efficacy and safety of a new lactose-free infant formula. DESIGN: Randomized, prospective, double-blind, controlled, outpatient, multicenter, parallel 12-week trial. SETTING: Ambulatory-care facilities of the participating centers. SUBJECTS: 137 healthy term infants (approximately 7 days old at the time of study enrollment). INTERVENTION: Healthy term infants, whose mothers had decided not to breast-feed, were randomly assigned 1 of the 2 study formulas. MAIN OUTCOME MEASURES: Weight, length, and occipitofrontal circumference measurements were obtained at baseline and when the infant was 2, 4, 8, and 12 weeks old. Formula acceptance and tolerance were also assessed at weeks 2, 4, 8, and 12. Serum albumin concentration, creatirune level, and blood urea nitrogen were determined at baseline and week 12. Adverse events were assessed throughout the study. STATISTICAL ANALYSES PERFORMED: Each baseline anthropometric and laboratory variable was analyzed for comparability between groups using the Student t test and was also analyzed using a repeated-measures analysis of variance method. Covariance analysis was applied to the final laboratory data using the respective baseline data as covariates. Decisions about equality of mean responses to formula effects were based on the .05 level of significance in all cases. RESULTS: One hundred four infants completed the study. No significant differences between the 2 formula groups were noted for any of the growth and blood parameters. APPLICATIONS: This new formula is an effective and safe lactose-free nutrition alternative for infants who require such a diet.


Assuntos
Alimentos Infantis/normas , Recém-Nascido/crescimento & desenvolvimento , Lactose/administração & dosagem , Antropometria , Nitrogênio da Ureia Sanguínea , Creatinina/sangue , Método Duplo-Cego , Feminino , Humanos , Alimentos Infantis/efeitos adversos , Recém-Nascido/sangue , Masculino , Albumina Sérica/análise
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