Bicarbonate transport
Bicarbonate transport along the loop of Henle II Effects of acid base, dietary, and neurohumoral determinants
... filtered bicarbonate. To study the effects on loop of Henle bicarbonate transport (JHCO3) of acid- base disturbances and of several factors known to modulate sodium transport, these in vivo ...
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Renal bicarbonate reabsorption in the rat IV Bicarbonate transport mechanisms in the early and late distal tubule
... conditions. Bicarbonate transport was load-dependent upon increasing the luminal bicarbonate concentration from 15 to 50 mM in both early and late distal tubule segments and remained constant at ...
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Bicarbonate transport along the loop of Henle I Microperfusion studies of load and inhibitor sensitivity
... stimulated bicarbonate transport (net and fractional JHCO3-) by 20%, whereas furosemide (10(-4) M) had no effect on bicarbonate reabsorption; both diuretics reduced ...
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Interaction of chloride and bicarbonate transport across the basolateral membrane of rabbit proximal straight tubule Evidence for sodium coupled chloride/bicarbonate exchange
... anion transport inhibitor, SITS. Peritubular bicarbonate reduction increased aCli, and most of this increase was lost when ambient sodium was totally ...peritubular bicarbonate reduction or sodium ...
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Regulation of net bicarbonate transport in rabbit cortical collecting tubule by peritubular pH, carbon dioxide tension, and bicarbonate concentration
... HCO3- transport was examined in in vitro perfused cortical collecting tubules (CCTs) from unpretreated New Zealand white ...HCO3- transport, suggesting these results are not due to the passive flux of HCO3- ...
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Spontaneous luminal disequilibrium pH in S3 proximal tubules Role in ammonia and bicarbonate transport
... First, absorption of fluid by the tubule in the absence of functional membrane bound carbonic anhydrase could concentrate luminal carbonic acid to a greater extent than dissolved CO2 giv[r] ...
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Bicarbonate Transport Systems in the Intestine of the Seawater EEL
... Whilst bathing the mucosa and the serosa with standard unbuffered Ringer's solution and normal HCO 3 ~ Ringer's solution, respectively, l/xmoll" 1 bumetanide, an inhibitor of Na + /K + /[r] ...
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Bestrophin 2 mediates bicarbonate transport by goblet cells in mouse colon
... fibrosis (42, 43) and in human biopsies from CF patients (11, 44, 45); however, as noted above, other studies have obtained different results. The differences may be explained by changes that occur as a secondary ...
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Role of adenosine triphosphate (ATP) and NaK ATPase in the inhibition of proximal tubule transport with intracellular cystine loading
... Cellular cystine loading with cystine dimethyl ester inhibits volume absorption, transepithelial potential difference, glucose transport, and bicarbonate transport in proximal convoluted[r] ...
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Luminal chloride modulates rat distal tubule bidirectional bicarbonate flux in vivo
... tubule bicarbonate transport were studied in vivo in normally fed rats, overnight-fasted rats, and rats made mildly alkalotic by administration of desoxycorticosterone acetate ...of bicarbonate by ...
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Effect of oral sodium bicarbonate on fibroblast growth factor-23 in patients with chronic kidney disease: a pilot study
... sodium bicarbonate is often the preferred choice of alkali ...sodium bicarbonate on FGF23 as higher FGF23 has been associated with sev- eral adverse outcomes in patients with CKD including cardiovascular ...
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GEOLOGY, WATER TYPES AND FACIE EVOLUTION OF THE OHAOZARA SALINE LAKE AREAS OF EBONYI STATE, NIGERIA
... calcium bicarbonate water in the northern parts, while sodium chloride and sodium/potassium bicarbonate waters exist in the southern parts of the study ...
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Effect of Increase in Dialysate Bicarbonate Concentration on Acid-Base and Respiratory Status of Hemodialysis Patients
... Keywords: Bicarbonate; Dialysate; Met- abolic Acidosis; Hemodialysis; Metabolic Alkalosis; Alkalemia; Hypercapnia Abbreviations: HD: Hemodialysis; BIC: Bicarbonate; DBIC: Dialysate Bicarbo- nate ...
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Renal bicarbonate reabsorption in the rat III Distal tubule perfusion study of load dependence and bicarbonate permeability
... reabsorption was flow dependent at luminal concentrations of 10 but not at 25 mM. During chronic metabolic alkalosis, maximal rates of reabsorption were significantly reduced to 33 pmol/min.mm. The bicarbonate ...
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Optimized inorganic carbon regime for enhanced growth and lipid accumulation in Chlorella vulgaris
... of bicarbonate to microalgae cultures in- duces a significant increase in TAG accumulation ...of bicarbonate to first enhance the specific growth rate and secondly by adding elevated con- centrations of ...
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Complex Acid-Base Disorders in Subacute Necrotizing Encephalomyelopathy (Leigh's Syndrome)
... Although the increase of fractional excre- tion of filtered bicarbonate to 14.9% secondary to bicarbonate therapy is suggestive of a proximal defect, the impaired net acid excretion and [r] ...
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Bicarbonate in diabetic ketoacidosis - a systematic review
... of bicarbonate rescue in cases of DKA presenting with more severe acidemia and cardiovascu- lar collapse or significant hemodynamic compromise were confined to case reports ...on bicarbonate administration ...
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pH and Bicarbonate Effects on Mitochondrial Anion Accumulation: PROPOSED MECHANISM FOR CHANGES IN RENAL METABOLITE LEVELS IN ACUTE ACID BASE DISTURBANCES
... Mitochondria from rabbit and dog renal cortex were incubated with 1 mM 14 C-weak acid anions in media containing low (10 mM) or high (40 mM) concentrations of bicarbonate and the steady-state accumulation of ...
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Variability in monthly serum bicarbonate measures in hemodialysis patients: a cohort study
... serum bicarbonate values were associated with greater monthly variability (Table ...low bicarbonate values appeared to decrease with time, whereas that of high values did not (p = ...
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The effects of a novel bicarbonate loading protocol on serum bicarbonate concentration: a randomized controlled trial
... measure bicarbonate concentration in duplicate with a carbon dioxide liquid stable reagent method (TR28321, Thermo Electron Corporation, Waltham, MA) using a spectrophotometer (Lambda 20, PerkinElmer, Waltham, MA) ...
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