(1) We report a series of experiments designed to determine if agents and conditions that have been reported to alter sodium reabsorption, Na-K-ATPase activity or cellular structure in the rat distal nephron might also regulate the density or affinity of binding of 3H-metolazone to the putative thiazide receptor in the distal nephron.
(2) These studies also suggest at least two mechanisms for uric acid reabsorption; one sodium dependent, the other independent of sodium and water transport.
(3) Agents that lower total plasma or LDL cholesterol in hypercholesterolaemic patients by interfering with cholesterol reabsorption from the gut (cholestyramine, cholestipol) or reduction of hepatic VLDL release (fibrates) do not appear to interfere with platelet hyperreactivity and do not change platelet-derived thromboxane formation.
(4) Classically, parathormone is known to increase bony reabsorption and raise serum calcium.
(5) However, the high serum Ca2+ normalised after the acute injection of ethiofos, an inhibitor of renal Ca2+ reabsorption, which was associated with a marked increase of Ca2+ excretion.
(6) Persistence of hypercalcaemia combined with an increase in tubular reabsorption of calcium in response to cellulose phosphate may be of diagnostic value in suspected primary hyperparathyroidism.
(7) The rate of ascites formation or reabsorption was recorded in anesthetized cats using the technique of intraperitoneal plethysmography.
(8) Bartter's syndrome was suspected because of the features of the hypokalemia, hyperaldosteronism, hyperreninemia, increased concentration of plasma angiotensin I & II, the defect in distal fractional reabsorption of chloride and normotension.
(9) This also implies that both tubular secretion and tubular reabsorption are susceptible to competition between similar substrates for a common carrier site.
(10) In contrast, the former group had an increased sensitivity to infused noradrenaline, which might be responsible for enhanced tubular sodium reabsorption in subjects with a positive family history of hypertension (or "salt sensitive" subjects).
(11) Although a nephric loop (loop of Henle) is lacking, the tubules appear to be structurally well adapted for efficient ion and water reabsorption.
(12) Comparison of these theoretical results with variations in reabsorption observed in micropuncture studies makes it possible to place upper and lower bounds on the difference between interstitial oncotic and hydrostatic pressures in the renal cortex of the rat.
(13) Peritubular capillary microperfusion was used to examine the effects of protein-free and hyperoncotic homologous plasma on fluid reabsorption by proximal convoluted tubules in the hydropenic rat.
(14) The sulfhydryl group content of rat epididymal spermatozoa was similar from one cell to another, suggesting little sperm reabsorption in the epididymis.
(15) However, the possibility of K, Ca, or Mg secretion in a proximal segment followed by reabsorption in a more distal part of the nephron was not ruled out.
(16) Both PTH and DbCAMP produced a fall in whole kidney phosphate reabsorption comparable to saline.
(17) Infusion of 9 and 12% Dextran solution elicited a decrease in water and sodium excretion as well as absolute and fractional proximal tubular fluid reabsorption to a 5% level of significance.
(18) Changes in [Pi]i were correlated with those in fractional Pi reabsorption (FRPi) in vivo and in capacity (Vmax) for Na(+)-Pi cotransport in microvilli derived from animals of similar age and fed the same diets.
(19) This indicated 63% balance between delivery of tubular fluid and the rate of reabsorption between two sites along proximal tubules.
(20) Moreover, both sodium isosmotic reabsorption as a percentage of sodium filtered load and sodium anisosmotic reabsorption as a percentage of sodium distal load were inhibited.
Resorption
Definition:
(n.) The act of resorbing; also, the act of absorbing again; reabsorption.
Example Sentences:
(1) However in the deciduous teeth from which the successional tooth germs were removed, the processes of tooth resorption was very different in individuals, the difference between tooth resorption in normal occlusal force and in decreased occlusal force was not clear.
(2) Resorption of calcium and depositon of inorganic phosphates in the implanted ceramics suggested that ions were being exchanged with the body fluids.
(3) In the last 2 years at our department we have developed a new technique in which the resorption has up to now been minimal.
(4) The inner diameters increased with age in the same way in both obese and control persons, indicating the the former are not protected against osteoporosis in the form of endosteal resorption.
(5) In short term clinical studies, the beneficial effects of transdermal estradiol on plasma gonadotrophins, maturation of the vaginal epithelium, metabolic parameters of bone resorption and menopausal symptoms (hot flushes, sleep disturbance, genitourinary discomfort and mood alteration) appear to be comparable to those of oral and subcutaneous estrogens, while the undesirable effects of oral estrogens on hepatic metabolism are avoided.
(6) The resorption, distribution and elimination of ethanol vary individually.
(7) The animals were sacrificed on the 14th day of pregnancy and implantation and resorption indices were studied.
(8) These changes were accomplished by an increase in sagittal condylar growth and by bone resorption at the posterior part of the mandibular lower border.
(9) This kind of distribution of microfilaments was always associated with resorption lacunae, and F-actin, vinculin, and talin zones correspond roughly to the edge of lacunae.
(10) To determine whether this density gradient shift was due to increased maturation rate of bone or decreased resorption and mineralization rates, [3H]proline and 45Ca were injected 5 days and 24 hours prior to sacrifice, respectively.
(11) Both patients demonstrated dramatic falls in serum calcium concentration, and in urinary calcium and hydroxyproline excretion that were consistent with a reduction in the rate of bone resorption.
(12) It is thought that the mechanisms of resorption are: co-mingling with CSF and redistribution in the more acute variety and in instances of subdural hydromas; and thru the healing and reparative process in the chronic type.
(13) Revascularisation was evaluated with radioactive microspheres; formation of new bone was assessed by incorporation of strontium, and resorption was assessed by measuring the reduction of graft weight.
(14) Bone cement particles promote polyethylene wear, which in turn promotes granuloma formation, bone resorption, and subsequent bone cement disintegration.
(15) Prolonged administration of rat prolactin antiserum resulted in an increase in the incidence of resorptions, but pregnancy was still maintained followed by normal parturition.
(16) Resorption of soft drusen at the macula in response to laser photocoagulation has been demonstrated previously.
(17) Whereas markedly high values of 1, 25-(OH)2D in plasma were found in some cases of primary hyperparathyroidism with prominent bone resorption, relatively low values were seen in some patients with chronic renal failure, senile osteoporosis, osteomalacia and hypercalcemia due to bone metastasis.
(18) The cocarcinogenic effect of cholecystectomy is assumed to be due to the increased production of secondary bile salts by the colonic bacteria and the lacking of the resorptive function of the gallbladder for some carcinogenic substances passing through the liver.
(19) The hands of 29 chronic dialysis patients were evaluated every 3 months for subperiosteal, intracortical, and endosteal bone resorption using fine-detail radiography and optical magnification.
(20) On polyacrylamide gels at pH 8.9 in the absence of sodium dodecyl sulfate, the bone-resorptive protein migrates with the mobility of an alpha 2-globulin.