Importance of organic osmolytes for osmoregulation by renal medullary cells.
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چکیده
منابع مشابه
Importance of organic osmolytes for osmoregulation by renal medullary cells.
The cells in the renal medulla protect themselves from the extracellular hypertonicity in that region of the kidney by accumulating large amounts of sorbitol, inositol, glycerophosphorylcholine, and betaine. The system is uniquely active in this part of the body, but it represents a throwback to primitive mechanisms by which cells in virtually all organisms, including bacteria, yeasts, plants, ...
متن کاملHypertonicity-induced mitochondrial membrane permeability in renal medullary interstitial cells: protective role of osmolytes.
BACKGROUND Hyperosmotic stress causes cell death through activation of apoptotic pathways if the protective osmolyte response is impaired. In this study we attempt to elucidate the molecular mechanisms of hypertonicity-induced apoptosis and the effect of major organic osmolytes upon those. METHODS Hypertonicity-induced changes in Bcl2-family protein abundance and the presence of cytochrome c ...
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Non-steroidal anti-inflammatory drugs (NSAIDs) represent one of the most common classes of medications used worldwide for treatment of pain and inflammation, and their nephrotoxic effects have been well documented. This study is focused on aspirin action on the normal adaptive responses of cells in the hypertonic renal inner medulla, using a cultured cell model. Following adaptation to hyperton...
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In lithium-induced nephrogenic diabetes insipidus (NDI), alterations in renal medullary osmolyte concentrations have been assumed but never investigated. Amiloride can modify lithium-induced NDI, but the impact of amiloride in lithium-induced NDI on renal medullary osmolytes, aquaporins, and urea transporters is unknown and is the basis of this study. Rats fed lithium (60 mmol/kg dry food) over...
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Introduction Organic osmolytes have been implicated in the pathogenesis of myelinolysis because some of them are accumulated slowly during correction of chronic hyponatremia. I investigated whether there was a topographic correlation between demyelinative lesions and the regional changes of organic osmolytes after rapid correction of chronic hyponatremia. In normal female Sprague-Dawley rats, c...
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ژورنال
عنوان ژورنال: Hypertension
سال: 1990
ISSN: 0194-911X,1524-4563
DOI: 10.1161/01.hyp.16.6.595