Renal Tubules


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Renal Tubules

 

(1) In some invertebrates, that part of the excretory organs, or nephridia, consisting of coiled tubules. (2) In vertebrates (including man), the renal tubules constitute a large part of the nephrons of the pronephroi, the mesonephros, and the metanephros. When ciliated funnels are present (in some adult Selachii and amphibians), the renal tubules open into the coelom. When there are no funnels (in the postembryonic period of all other vertebrates), they terminate blindly. At the opposite end, the renal tubules empty into the ureters through the collecting tubules.

References in periodicals archive ?
Notice an increment in the amount of the protein in the regenerated areas of some renal tubules (arrow).
Blood urea nitrogen (BUN) is a measure of renal function: rising levels indicate reduced GFR and slow flow through the renal tubules (allowing more of the urea to be reabsorbed).
The rationale behind using sodium bicarbonate in this setting is that it alkalinizes the renal tubules, thus protecting them from free radicals (an acidic environment promotes free radical formation).
Thus, the present study shows that Vernonia extract is a potential vasodilatation agent in normotensive rats without any effects on renal tubule autoregulation mechanisms.
Fatty acid-binding protein (FABP), isolated in the cytosol, is involved in the transportation of free fatty acids into the mitochondria for [beta]-oxidation, with heart (H)- and liver (L)-FABP isotypes being restricted to the distal and proximal renal tubules, respectively.
Given that cadmium is stored in the renal tubule, it is possible that the correlation of the metal and these biomarkers is the result of a common association with another factor (e.
Damage may occur in the glomerulus (post-streptococcal infection, systemic lupus erythematosus, Good-pasture's syndrome, and bacterial endocarditis), renal vessels (inflammation or obstruction), nephrons (acute pyelonephritis, allergic reactions, hypercalcemia, uric acid nephropathy, myeloma of the kidney), and/or renal tubules (postischemia and nephrotoxins -- antibiotics, heme pigments, and radiocontrast media).
Direct tubular damage may also occur secondary to tumour lysis syndrome due to the accumulation of uric acid crystals in renal tubules, renal vasoconstriction, and the release of pro-inflammatory cytokines in the renal interstitium (Kitai et al.
There was no protein cast in animals of group C of current study which showed that treatment with corn silk extract has improved the deleterious effects of acetaminophen on renal tubules.
At the 2 [sup]nd and 4 [sup]th day after CP injection, the epitheliums of renal tubules showed obviously cell swelling and tubules narrowing, and OM stripes which was consisting of proximal convoluted tubules demonstrated the most remarkable changes [refer to the acute stage, [Figure 4]a.
1: showing renal tubules, sheets of squamous cells and areas of keratin pearls.
6) Napsin A is not unique to the lung and is also expressed in normal human renal tubules, pancreatic exocrine glands and ducts, follicular epithelium in the thyroid, parietal cells in the stomach, and mammary gland duct epithelium.

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