Results 211 to 220 of about 78,588 (247)

Roles of the Na,K‐ATPase α4 isoform and the Na⁺/H⁺ exchanger in sperm motility

Molecular Reproduction and Development, 2002
AbstractThe Na,K‐ATPase generates electrochemical gradients that are used to drive the coupled transport of many ions and nutrients across the plasma membrane. The functional enzyme is comprised of an α and β subunit and families of isoforms for both subunits exist. Recent studies in this laboratory have identified a biological role for the Na,K‐ATPase
Alison L, Woo, Paul F, James, Jerry B, Lingrel   +2 more
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Colocalization of the apical Cl⁻/HCO 3 − exchanger PAT1 and gastric H-K-ATPase in stomach parietal cells

American Journal of Physiology-Gastrointestinal and Liver Physiology, 2002
The apical Cl−/HCO[Formula: see text] exchanger called the putative anion transporter (PAT1; SLC26A6) is expressed on apical membranes of villus cells in the duodenum, but its location in the stomach remains unknown. Here we examined the cell distribution and membrane location of PAT1 in mouse stomach. Immunofluorescence labeling studies with anti-PAT1
Snezana, Petrovic, Zhaohui, Wang, Liyun, Ma, Ursula, Seidler, John G, Forte, Gary E, Shull, Manoocher, Soleimani   +6 more
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Both Na+-K+ATPase and Na+-H+Exchanger are Immediately Active upon Post-ischemic Reperfusion in Isolated Rat Hearts

Journal of Molecular and Cellular Cardiology, 1998
Limited time resolution has hampered proper evaluation of changes in intracellular Na+ (Na+i) in whole hearts upon post-ischemic reperfusion. In isolated rat hearts perfused at 37 degrees C, we studied the contribution of the Na+-K+ ATPase and the Na+-H+ exchanger to control of Na+i during reperfusion using 23Na NMR and the shift reagent Tm(DOTP)5 ...
J G, Van Emous, J H, Schreur, T J, Ruigrok, C J, Van Echteld   +3 more
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Structures and immunolocalization of Na⁺, K⁺‐ATPase, Na⁺/H⁺ exchanger 3 and vacuolar‐type H⁺‐ATPase in the gills of blennies (Teleostei: Blenniidae) inhabiting rocky intertidal areas

Journal of Fish Biology, 2012
The structure and immunolocalization of the ion transporters Na+,K+‐ATPase (NKA), Na+/H+ exchanger (NHE3) and vacuolar‐type H+‐ATPase (VHA) were examined in the gills of teleosts of the family Blenniidae, which inhabit rocky shores with vertical zonation in subtropical seas.
M, Uchiyama, M, Komiyama, H, Yoshizawa, N, Shimizu, N, Konno, K, Matsuda   +5 more
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Caffeine Decreases The Expression of Na⁺/K⁺‐Atpase and the Type 3 Na⁺/H⁺ Exchanger In Rat Kidney

Clinical and Experimental Pharmacology and Physiology, 2002
SUMMARY1. The aim of the present study was to explore the mechanisms underlying the renal effects of caffeine.2. Male Sprague‐Dawley rats were treated with caffeine, consisting of a single oral bolus (0.2%, 20 mL/kg) followed by supplementation in drinking water (0.2%) for 1 day. Rats treated the same but given water without caffeine served as controls.
JongUn, Lee, Jeong Hoon, Ha, Sunmi, Kim, YoonWha, Oh, Soo Wan, Kim   +4 more
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Bicarbonate secretion by rat bile duct brush cells indicated by immunohistochemical localization of CFTR, anion exchanger AE2, Na+/HCO3 − cotransporter, carbonic anhydrase II, Na+/H+ exchangers NHE1 and NHE3, H+/K+-ATPase, and Na+/K+-ATPase

Medical Molecular Morphology, 2006
The function of brush cells (BCs) is unknown. In a previous study, the rat common bile duct was examined by ultrastructural cytochemical methods for localizing HCO(3) (-), Cl(-), and Na(+) ions. All ion precipitates increased in or on BCs after secretin or meal stimulation, and it was proposed that BCs may secrete NaHCO(3).
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Effects of epidermal growth factor on gluconeogenesis and cellular redox state do not require Na+/H+ exchange or Na+/K+-ATPase activities

Regulatory Peptides, 1994
Epidermal growth factor (EGF) triggers rapid and delayed effects on gluconeogenesis, cytosolic (lactate/pyruvate ratio) and mitochondrial (3-hydroxybutyrate/acetoacetate ratio) redox states (Soler, C. and Soley, M., Biochem. J., 294 (1993) 865-872). This study attempts to determine whether the mechanism by which EGF modulates any of these parameters is
C, Soler, E J, Cragoe, M, Soley
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Molecular characterization, expression analysis of 14-3-3 beta/alpha and the effect of RNA interference on ion transporter protein Na+-K+-ATPase, Na+–H+-exchanger and CFTR in turbot (Scophthalmus maximus)

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2020
To understand the role of 14-3-3 beta/alpha in hypoosmotic regulation of turbot (Scophthalmus maximus), we characterized the 14-3-3 beta/alpha gene and analyzed the tissue distribution and its gene transcriptional patterns in the main expressed tissues under low salt stress. The 14-3-3 beta/alpha cDNA is 892 bp in length, incorporating an ORF of 774 bp
Zhifeng, Liu, Jinsheng, Zhang, Aijun, Ma, Xinan, Wang, Zhibin, Sun, Wenxiao, Cui, Chenhao, Yuan, Chunyue, Zhu   +7 more
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[Systems of H+-K+-exchange in E. coli. Interplay with ATPase complex F1.F0].

Biofizika, 1982
A study has been made of the nature of H+-K+-exchanges in the strain E. coli AN 120 with mutation in gene uncA401 (the defect in Mg++-Ca++-ATPase) and in the strain E. coli AN 382 with mutation in gene uncB (F0 is insensitive to N,N1-dicyclohehylcarbodiimide, DCCD). It was shown in E.
S M, Martirosov, A A, Trchunian
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Catalysis of oxygen-18 exchange between inorganic phosphate and water by the gastric H,K-ATPase.

Biochemistry, 1985
The gastric H,K-ATPase is shown to catalyze 18O exchange between Pi and HOH. Mg2+ is the only ion required for the reaction. K+ increases the rate of isotope exchange, which is directly proportional to specific ATPase activity. Ouabain, which potently inhibits the Na,K-ATPase, has no effect on the exchange reaction.
L D, Faller, G A, Elgavish
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