Isolated frog skin epithelia undergo marked, but reversible swelling when the external skin surface is bathed with conventional NaCl Ringer's and the internal surface with KCl Ringer's solutions. In 2 hours, epithelial thickness increased by over twofold. When NaCl Ringer's was replaced on both sides of the skin, volume returned to control levels in less than 1 hour. When sulfate, rather than c...

The recommendation to avoid high dietary “salt” intake for the prevention and treatment of hypertension is often expressed in terms of dietary sodium. However, a consistent body of evidence suggests that the chloride component of salt is an important contributor to NaClinduced elevations of blood pressure.1 In several rat models of salt-sensitive hypertension (Dahl salt-sensitive [S] rat, DOCA-...

BACKGROUND Potassium ion homeostasis plays an important role in regulating membrane potential and therefore resistance to cations, antibiotics and chemotherapeutic agents in Schizosaccharomyces pombe and other yeasts. However, the precise relationship between drug resistance in S. pombe and external potassium concentrations (particularly in its natural habitats) remains unclear. S. pombe can to...

Cortical spreading depression is a pathophysiological excitation wave that occurs during pathophysiological brain conditions such as ischemic brain infarction, migraine aura, and others. Judged from experiments in rodents, the brainstem is thought to be comparatively resistant to the generation of spreading depression. However, because spreading depression can be elicited in the brainstem of ra...

Depolarization of cultured astrocytes by KCl stimulated gamma-aminobutyric acid (GABA) release in a dose-dependent manner. At 60 mM KCl, the stimulatory effect was calcium- and sodium- independent, and was not altered by the presence of beta-alanine. The potassium-evoked GABA release was inhibited by furosemide and 4-acetamido-4' -isothiocyano-2,2'-stilbene disulfonic acid (SITS), blockers of t...

It has recently been proposed that in rat models of genetic hypertension, supplemental dietary potassium preserves release of endothelium-derived relaxing factor independently of its capacity to either attenuate hypertension or increase plasma potassium. To test this hypothesis in Dahl salt-sensitive rats given sodium chloride (4%) for 3 weeks, we supplemented dietary potassium (2.1%) with eith...

to study the effects of priming on seed germination traits of sainfoin 'eski', a factorial in randomized complete block design with three replications was conducted at the laboratory of agricultural research center of sari in 2011. treatments consisted of polyethylene glycol (peg6000) at 5 and 10%, potassium nitrate (kno3) at 5 and 10% and potassium chloride (kcl) at 5 and 10% levels ...

Abstract Mechanochemical reactions at the sliding interface between a single-crystalline silicon (Si) wafer and silica (SiO 2 ) microsphere were studied in three environmental conditions: humid air, potassium chloride (KCl) solution, KCl solution with an applied voltage. Compared to that from mechanochemical material removal surface increased substantially KCl-immersed condition, further when e...

Experimental investigations of plastic flow have demonstrated temporal intermittency as deformation proceeds in a series of intermittent bursts with scale-free size distribution. In the present investigation, a corresponding spatial intermittency is demonstrated for plastic flow of KCl single crystals. Deformation bursts lead to large surface steps with a height distribution that is consistent ...

Plan: The present study was undertaken to investigate the H2 receptor antagonistic action of fresh juice of Brassica oleracea var. capitata Methodology: Two sets of experiments consisted of recording the responses of the uterine horn preparations (precontracted with potassium chloride, KCl) to histamine (4.5; 9; 17.99; 35.99; 71.98 × 10 and 14.40× 10 mol/L, 2 minute each concentration) in absen...