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131.
Diabetes causes significant increases in bladder weight but the natural history and underlying mechanisms are not known. In this study, we observed the temporal changes of detrusor muscle cells (DMC) and the calcineurin (Cn) and Akt expressions in detrusor muscle in the diabetic rat. Male Sprague-Dawley rats were divided into 3 groups: streptozotocin-induced diabetics, 5% sucrose-induced diuretics, and age-matched controls. The bladders were removed 1, 2, or 9weeks after disease induction and the extent of hypertrophy was examined by bladder weights and cross sectional area of DMC. Cn and Akt expression were evaluated by immunoblotting. Both diabetes and diuresis caused significant increases in bladder weight. The mean cross sectional areas of DMC were increased in both diabetic and diuretic animals 1, 2, or 9weeks after disease induction. The expression levels of both the catalytic A (CnA) and regulatory B (CnB) subunits of Cn were increased at 1 and 2weeks, but not at 9weeks. Expression of Akt was similar among control, diabetic, and diuretic rat bladder at all time points. In conclusion, diabetes and diuresis induce similar hypertrophy of detrusor muscle during the first 9weeks, indicating that bladder hypertrophy in the early stage of diabetes is in response to the presence of increased urine output in diabetes. Our results suggest that the Cn, but not the Akt signaling pathway may be involved in the development of bladder hypertrophy. 相似文献
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Bani-Sadr F Goderel I Morand P Payan C Lunel F Pol S Perronne C Carrat F Cacoub P 《AIDS (London, England)》2007,21(12):1645-1648
We examined the possible relationships between hepatitis C virus (HCV) viral load and host factors, viral factors, and anti-HIV therapy in 379 HIV/HCV-co-infected patients. Multiple linear regression analysis identified two independent factors associated with higher HCV viral load, HCV genotype 1 or 4 infection and protease inhibitor-based antiretroviral therapy. Antiretroviral therapy in general was independently associated with lower HCV viral load. This suggests that HCV viral load kinetics could differ according to the choice of HAART regimen. 相似文献