The effects of pyrene on tissue water and plasma osmolyte homeostasis in Rana pipiens and Rana catesbeiana
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چکیده
منابع مشابه
The Epidermis of Rana Pipiens
The epidermis of adult Rana pipiens has been studied by electron microscopy and histological and histochemical methods. It was found that the epidermis is engaged in the production of both keratin and mucus. The basal cells are mainly filled with tonofilaments, whereas the cells located in the mid-portion of the epidermis contain both tonofilaments and mucous granules. Golgi vesicles and endopl...
متن کاملGlomerular permeability in the bullfrog Rana catesbeiana
Filtration studies suggest similar size pores in the glomerular filters of mammals and amphibians. However, the glomerular wall in the bullfrog exhibits several structural features not found in mammals. The subendothelial space of the basement membrane is often greatly enlarged and infiltrated by cellular elements. The lamina densa of the basement membrane shows extensive variation in thickness...
متن کاملRenal handling of urea in Rana catesbeiana.
LONG, WILLIAM SCOTT. Renal handing of urea in Rana catesbeiana. Am. J. Physiol. 224(Z) : 482-490. 1973.-The processes involved in renal urea excretion in the bullfrog (Rana catesbeiana) were studied by clearance, tissue, and micropuncture methods. According to micropuncture data with urea-14C and inulin-3H, secretion of urea against a concentration gradient from plasma to tubular fluid occurs a...
متن کاملEvaluation of the effects of titanium dioxide nanoparticles on cultured Rana catesbeiana tailfin tissue
Nanoparticles (NPs), materials that have one dimension less than 100 nm, are used in manufacturing, health, and food products, and consumer products including cosmetics, clothing, and household appliances. Their utility to industry is derived from their high surface-area-to-volume ratios and physico-chemical properties distinct from their bulk counterparts, but the near-certainty that NPs will ...
متن کاملMetabolic effects of dehydration on an aquatic frog, Rana pipiens.
Cellular responses to dehydration were analyzed in six organs of leopard frogs Rana pipiens. Frogs at 5 degrees C endured the loss of up to 50% of their total body water content but water contents of individual organs were strongly defended. Skeletal muscle water content was strongly affected by dehydration, dropping from 80.7% of wet mass in controls to 67.2% in frogs that had lost 50% of thei...
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ژورنال
عنوان ژورنال: The FASEB Journal
سال: 2009
ISSN: 0892-6638,1530-6860
DOI: 10.1096/fasebj.23.1_supplement.778.18