Navegando por Assunto "Endocrinologia"

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Acesso aberto (Open Access)
Avaliação das anormalidades do metabolismo mineral ósseo em pacientes portadores de lipodistrofia e HIV positivos
(Universidade Federal do Pará, 2012-03-21) OLIVEIRA, Danielle Lima de; LIBONATI, Rosana Maria Feio; http://lattes.cnpq.br/3818175484709618
The advances in antirretroviral therapy (HAART) markedly suppressed viral activity and increased longevity of those living with HIV / AIDS, however, a variety of metabolic abnormalities related to treatment was reported after the introduction of HAART combined among these complications, changes in bone mineral density arouse special attention, not only for its long-term implications, but also by the conflicting data available in the literature. OBJECTIVES: to evaluate changes in bone mineral density, and correlate them with sex, age, body mass index body, types of lipodystrophy, laboratory levels of serum calcium, parathyroid hormone and vitamin D and hormonal profile. METHODS: in this cross-sectional study 77 HIV patients with lipodystrophy syndrome treated with highly active antirretroviral therapy (HAART), and enrolled in the clinic lipodystrophy of the João de Barros Barreto University Hospital. The clinical examination of patients involved the measurement of weight, height and waist circumference. Laboratory tests performed included measurement of serum calcium, vitamin D, parathyroid hormone, estradiol, testosterone.Patients were divided into three groups according to the form of lipodystrophy: mixed, atrophic and hypertrophic. RESULTS: most patients were male, and the predominant form of lipodystrophy was mixed form. The mean time of infection after HIV diagnosis was 10.98 ± 6.03 years. The prevalence of osteopenia was 61.03% and osteoporosis was 25.97%. The male patients presented more frequently osteoporosis in femoral neck and the female patients in the lumbar spine. Osteoporosis in the lumbar spine was more prevalent in the mixed form of lipodystrophy and the femoral neck and shown to be similar between the atrophic and mixed forms of lipodystrophy. And the frequency of osteoporosis was present in all sequences of age in males and in females only after 50 years. CONCLUSIONS: the prevalence of osteoporosis increases with age in females. There was no association between BMD and the form of lipodystrophy.
Acesso aberto (Open Access)
Hormônios tireoidianos, anti-TPO e concentrações de mercúrio total na avaliação da disfunção glandular em população ribeirinha da Amazônia
(Universidade Federal do Pará, 2015) OIKAWA, Teiichi; PINHEIRO, Maria da Conceição Nascimento; http://lattes.cnpq.br/6353829454533268
There is evidence that mercury accumulation in the thyroid can cause endocrine and immune disorders. Riverside populations of the Amazon with a history of prolonged exposure to mercury have been investigated for neurological damage, but little is known about the hormonal disorders and specific immune thyroid. The objective of this study is to verify the existence of association between the total mercury concentrations in hair samples and concentrations of thyroid hormones and the anti-TPO antibody. The study included 86 riverine from Tapajos region mercury exposed to long-term. Participated this study men and women aged between 14 and 54 years, residents in place for more than five years. Measurements of serum hormone concentrations (TSH, T3 and free T4) and Anti-TPO titles were taken by enzyme immunoassay. Total mercury (THg) in hair samples was measured by atomic absorption spectrophotometry by cold vapor technique. Hormonal dysfunction occurred in 10.3% with an increase of T3, 2.3% with a reduction of T4L, 3.4% decrease in TSH and 4.6% with increased TSH expressed that the maximum value of 8.9 μU/m. Anti-TPO titles were normal in all participants. There was no correlation of hormonal markers (TSH, T3 and T4L) or the Anti-TPO with mercury levels. The results showed that THg concentrations in hair, serum TSH and anti-TPO titles were not influenced by sex; that hormonal changes in thyroid studied riparian not associated with the levels of THg suggesting the interference of protector factors on thyroid function.