Fisiologia Renal de Vander – Ebook download as PDF File .pdf) or read book online. Conciso e didático, este livro explora os aspectos fundamentais da fisiologia renal que são essenciais para o bom entendimento da medicina clínica. : FISIOLOGIA RENAL DE VANDER 6TA. EDIC. by EATON DOUGLAS C. () by Douglas C. Eaton and a great selection of similar.
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fisiolotia Tel 91 99 99 Fax 91 21 Dysfunction of the thick loop of Henle and senescence: Renal reserve in the oldest old. Something similar was documented in the newborns but in this case it was attributed to tubular immaturity since this finding disappeared as they grew older[ 89 ].
Additionally, it has also been documented a decrease in sodium reabsorption in the thick ascending loop of Henle in very old healthy people[ 20 ].
Each chapter is filled with the tools you need to truly learn key concepts rather than merely memorize facts. Clinical consequences[ 13 ]: On one hand, it has been documented that fractional excretion of urea, in volume contraction as well as in volume expansion, was significantly higher than the one reached by the young: Inhibition of renal reserve in chronic renal disease.
Fisiología renal de Vander – Douglas C. Eaton, John P. Pooler – Google Books
Renal handling of uric acid, magnesium, phosphorus, calcium, and acid base in the elderly. Journal List World J Nephrol v. Vxnders goal of his research is to examine the cellular signaling mechanisms which control all aspects of cellular function including cell growth, division, and responses to external stimuli. Rev Esp Geriatr Gerontol.
Even though, the above mentioned creatinine renal filtration difference between the age groups, there is no significant difference regarding their serum creatinine value between them.
The normal ageing kidney—morphology and physiology. On the other hand, serum uric acid level and fractional excretion of uric acid FEUAc do not differ between very old healthy people in comparison with healthy young ones. As regards the maximum tubular dilution capacity, another of the parameters which Chaimowitz test can evaluate, it has been reported that such dilution is significantly reduced in the very old in comparison with the young: Renal handling of sodium in old people: Aldosterone bioactivity in this segment is studied using the furosemide test, which ultimately generates a discrete hypovolemia that stimulates the release of this hormone, which in turn stimulates the secretion of potassium in the collecting tubules.
The observed difference in the creatinine filtration between the studied age groups could be justified as a consequence of the decrease in the number of glomerular units secondary to their obliteration due to the glomeruloscrerosis which accompanies ageing[ 3 – 5 ]. Feed-back between geriatric syndromes: To examine these signaling mechanisms, he uses contemporary methods of cellular and molecular biology including patch voltage clamp methods and expression of cloned signaling molecules in Xenopus oocytes and other expression systems.
Creatinine reabsorption by the newborn rabbit kidney. Cimetidine improves the reliability of creatinine as a marker of glomerular filtration.
Examination of kidney function. Fractional excretion of urea in severely dehydrated elderly with dementia.
Fisiologia Renal de Vander – Douglas C. Eaton | John P. Pooler – Google Books
Renal handling of many substances creatinine, urea, sodium, water, potassium significantly differs between very old healthy people and young one, while there is no change in uric acid renal handling between these groups.
The previously described physiological alterations also show that the characteristic senile sodium urinary loss depends not only on the reduced sodium reabsorbed in the TALH but also in the collecting tubules[ 24 ]. Martinus Nijhoff Publisher; All authors contributed to this manuscript. From the clinical point of view, the above mentioned reduction in the tubular capacity to reabsorb sodium fosters sodium depletion and its clinical consequences: This article has been cited by other articles in PMC.