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The resting and action membrane potentials of ciliate Blepharisma japonicum

100%

Fabczak S., Fabczak H.

Acta Protozoologica

1988

tom 27

nr 2

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The relationship between extracellular K-plus and Ca2-plus on aminopyrine accumulation in rat parietal cells

100%

Ostrowski J., Zych W., Dolowy K., Butruk E.

Journal of Physiology and Pharmacology

1991

tom 42

nr 3

The effects of extracellular K⁺ in relation to extracellular Ca²⁺ on acid production were studied. Studies were performed in vitro using isolated cells from rat stomachs, and acid production was indirectly determined by ¹⁴C-aminopyrine (AP) accumulation. In the absence of K⁺ in the incubation medium histamine-stimulated AP accumulation ratios were significantly decreased independently in the presence or absence of extracellular Ca²⁺. Under basal conditions, in the absence of extracellular Ca²⁺ , increasing concentrations of extracellular K⁺ enhanced AP accumulation ratios to significantly higher than those found in the presence of Ca²⁺. In histamine-, cAMP-, and carbachol-stimulated parietal cells, high K⁺ concentrations increased AP accumulation significantly less in Ca²⁺-free than in Ca²⁺-containing media. High K⁺ also induced significantly both an increase in cytosolic free Ca²⁺ concentration and ⁴⁵ Ca²⁺ uptake. The present results confirmed the importance of K⁺ in gastric acid production and suggested a role for Ca²⁺ as a modulator of mechanisms of parietal cell stimulation.

Enhancement of [3H] D-aspartate release during ischemia like conditions in rat hippocampal slices: source of excitatory amino acids

67%

Zablocka B., Domanska-Janik K.

Acta Neurobiologiae Experimentalis

1996

tom 56

nr 1

Ograniczanie wyników

1 Acta Neurobiologiae Experimentalis

1 Acta Protozoologica

1 Journal of Physiology and Pharmacology

1 Butruk E.

1 Dolowy K.

1 Domanska-Janik K.

1 Fabczak H.

1 Fabczak S.

1 Ostrowski J.

1 Zablocka B.

1 Zych W.

1 1996

1 1991

1 1988

Wyniki wyszukiwania

The resting and action membrane potentials of ciliate Blepharisma japonicum

The relationship between extracellular K-plus and Ca2-plus on aminopyrine accumulation in rat parietal cells

Enhancement of [3H] D-aspartate release during ischemia like conditions in rat hippocampal slices: source of excitatory amino acids