نتایج جستجو برای: simple renal cysts
تعداد نتایج: 718374 فیلتر نتایج به سال:
Cystic kidney disease has been linked to mutations in the Invs gene in mice with inversion of embryonic turning (inv/inv) and the INVS (NPHP2) gene in infants with nephronophthisis type 2 (NPHP2). The inv mouse model features multiorgan defects including renal cysts, altered left-right laterality, and hepatobiliary duct malformations transmitted in an autosomal recessive manner. Affected mice u...
Immortalized cell lines derived from embryonic mouse kidneys are useful tools for exploring signaling pathways, morphogenetic mechanisms, and gene function in renal development: they also provide a means for efficient first-round screening of panels of small molecules intended to combat renal pathologies such as the development of cysts, and such cell line-based screening can allow a valuable r...
Introduction/Background The presence of enhancing soft tissue in a renal lesion on cross-sectional imaging is considered diagnostic of a renal tumor. However, an extensively necrotic or cystic renal tumor may demonstrate little contrast enhancement, and its imaging appearance may overlap with that of complex benign renal cysts on conventional MR images. It has been shown that MR diffusion-weigh...
Increased proliferative activity of the renal tubular epithelium is thought to be a prerequisite for renal cyst formation by many investigators. However, in humans, the exact in vivo proliferation rate of epithelial cells lining these cysts is not known. In this study, which used immunohistochemical methods with an antibody to proliferating cell nuclear antigen (PCNA), the proliferation index (...
Von Hippel-Lindau (VHL) disease is characterized by multiple tumors in specific target organs. The tumors at different sites share distinct morphologic and genetic characteristics but their cell of origin is unknown. We show that VHL disease-associated renal clear cell carcinomas (RCC) consistently coexpress erythropoietin (Epo) and Epo receptor (EpoR). In addition, coexpression of Epo and EpoR...
INTRODUCTION Genital abnormalities have been reported in up to 12 percent of men with unilateral renal agenesis.(1) There have also been reports of neurofibromatosis patients manifesting ipsilateral renal agenesis.(2) Abnormal development of the mesonephric duct between the fourth and thirteenth week of embryonic life seems to be the origin of such cysts, which can have a variable clinical pres...
126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...
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