Inhibitory action of insulin-sensitizing agents on calcium channels in smooth muscle cells from resistance arteries of guinea-pig
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چکیده
منابع مشابه
Single L-type calcium channels in smooth muscle cells from resistance arteries of spontaneously hypertensive rats.
The amplitude of the whole-cell L-type Ca2+ channel current recorded from vascular smooth muscle cells is reportedly greater in spontaneously hypertensive rats (SHR) than in Wistar-Kyoto rats (WKY). However, no study has examined properties of single Ca2+ channels in arterial cells from these strains. To further test the hypothesis that activation of L-type Ca2+ channels in arterial smooth musc...
متن کاملInactivation of calcium channels in single vascular and visceral smooth muscle cells of the guinea-pig.
Inactivation of currents carried through calcium channels by calcium (ICa), barium (IBa) and monovalent cations (In.s.) was studied in single smooth muscle cell (SMC) of the guinea-pig coronary artery and taenia caeci by the whole-cell patch-clamp method. The rate of ICa inactivation in the coronary artery SMC was correlated with ICa amplitude, and acceleration was observed with the increasing ...
متن کاملSodium conductance in calcium channels of single smooth muscle cells of guinea-pig taenia caeci.
During the last few years, the Ca 2+-channels in isolated smooth muscle cells have been intensively studied (Walsh and Singer 1981; Bury et al. 1982; Klock ner and Isenberg 1985; Droogmans and Callewaert 1986). It was shown that under physiological conditions Ca 2+-channels are not measurably permeable for Na-ions (Klockner and Isenberg 1985). On the other hand, inward currents carried by Na +...
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Inhalational insulin was withdrawn from the market due to its potential to produce airway hyper-reactivity and bronchoconstriction. So the present study was designed to explore the acute effects of insulin on airway reactivity of guinea pigs and protective effects of salbutamol and ipratropium against insulin induced airway hyper-responsiveness on isolated tracheal smooth muscle of guinea pig. ...
متن کاملthe inhibitory effects of ferula assafoetida on muscarinic receptors of guinea-pig tracheal smooth muscle
conclusions these results showed an inhibitory effect for the extract of asafetida on muscarinic receptors of tracheal smooth muscle. results the ec50 obtained in the presence of higher concentration of the extract muscle was significantly higher compared to saline (p < 0.01). the maximum responses to methacholine in the presence of higher concentration of the extract (10 mg/ml) was significant...
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ژورنال
عنوان ژورنال: British Journal of Pharmacology
سال: 1998
ISSN: 0007-1188
DOI: 10.1038/sj.bjp.0701669