Abstract：
:The vasodilatory role of calcitonin gene-related peptide in activating K+ channels was examined in isolated, suffused human uterine arteries. Calcitonin gene-related peptide produced a concentration-dependent relaxation of norepinephrine (1 microM)-induced contractions. Calcitonin gene-related peptide was antagonized by glybenclamide (1-100 microM), an inhibitor of ATP-sensitive K+ channels, but not by tetraethylammonium (1 mM), an inhibitor of calcium(2+)-activated K+ channels. Glybenclamide (10 microM) produced a 6.7 fold and an 11-fold shift to the right of calcitonin gene-related peptide (0.1 to 100 nM) in uterine arteries from pregnant patients (n = 3) and nonpregnant patients (n = 6), respectively. Calcitonin gene-related peptide (10 nM) less effectively (P < 0.05) relaxed contractions produced by KCl (50 mM) (29.4 +/- 1.6%) than by norepinephrine and glybenclamide (10 microM) did not reverse this relaxation (22.2 +/- 6.8%, n = 4 nonpregnant patients). Pinacidil (1 microM), an ATP-sensitive K+ channel opener, relaxed norepinephrine-induced contractions of uterine arteries. Glybenclamide (10 microM) also antagonized pinacidil. These results suggest that calcitonin gene-related peptide relaxes norepinephrine-contracted human uterine arteries, at least in part, by activation of a K+ channel, perhaps of the ATP-sensitive type.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Nelson SH,Suresh MS,Dehring DJ,Johnson RLdoi
10.1016/0014-2999(93)90249-hsubject
Has Abstractpub_date
1993-10-05 00:00:00pages
255-61issue
3eissn
0014-2999issn
1879-0712pii
0014-2999(93)90249-Hjournal_volume
242pub_type
杂志文章abstract：:Obesity-associated non-alcoholic fatty liver disease (NAFLD) increases coagulation and inflammation. We hypothesized that (S)YS-51, an agent found to be beneficial in animal models of sepsis, may reduce NAFLD in high-fat diet (HFD) mice by reducing coagulation and inflammation. C57BL/6 mice were fed either a chow diet...
journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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更新日期：1977-09-15 00:00:00
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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更新日期：2006-08-07 00:00:00
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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更新日期：2007-03-22 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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更新日期：2011-02-25 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2018.06.029
更新日期：2018-08-15 00:00:00
