Role of sex hormones and their receptors on gastric Nrf2 and neuronal nitric oxide synthase function in an experimental hyperglycemia model.
Role of sex hormones and their receptors on gastric Nrf2 and neuronal nitric oxide synthase function in an experimental hyperglycemia model.
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DOI:
10.1186/s12876-020-01453-2
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发表时间:
2020-09-23
影响因子:
2.4
通讯作者:
Gangula PR
中科院分区:
文献类型:
--
作者:
Sprouse J;Sampath C;Gangula PR
Gastroparesis, a condition of abnormal gastric emptying, is most commonly observed in diabetic women. To date, the role of ovarian hormones and/or gastric hormone receptors on regulating nitrergic-mediated gastric motility remains inconclusive. The purpose of this study is to investigate whether sex hormones/their receptors can attenuate altered Nuclear factor (erythroid-derived 2)-like 2 (Nrf2), neuronal Nitric Oxide Synthase (nNOS) expression and nitrergic relaxation in gastric neuromuscular tissues exposed to in-vitro hyperglycemia (HG). Gastric neuromuscular sections from adult female C57BL/6 J mice were incubated in normoglycemic (NG, 5 mM) or hyperglycemic (30 mM or 50 mM) conditions in the presence or absence of selective estrogen receptor (ER) agonists (ERα /PPT or ERβ: DPN); or non-selective sex hormone receptor antagonists (ER/ICI 182,780, or progesterone receptor (PR)/ RU486) for 48 h. mRNA, protein expression and nitrergic relaxation of circular gastric neuromuscular strips were assessed. Our findings in HG, compared to NG, demonstrate a significant reduction in ER, Nrf2, and nNOS expression in gastric specimens. In addition, in-vitro treatment with sex hormones and/or their agonists significantly (*p < 0.05) restored Nrf2/nNOSα expression and total nitrite production. Conversely, ER, but not PR, antagonist significantly reduced Nrf2/nNOSα expression and nitrergic relaxation. Our data suggest that ER’s can regulate nitrergic function by improving Nrf2/nNOS expression in experimental hyperglycemia.
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影响因子:
--
作者:
Chandrakumar L;Bagyánszki M;Szalai Z;Mezei D;Bódi N
通讯作者:
Bódi N
影响因子:
15.9
作者:
Anitha, M;Gondha, C;Srinivasan, S
通讯作者:
Srinivasan, S
影响因子:
7.4
作者:
Crabtree, Mark J.;Hale, Ashley B.;Channon, Keith M.
通讯作者:
Channon, Keith M.
DOI:
10.1016/j.bbaexp.2003.08.006
发表时间:
2003-10-01
期刊:
BIOCHIMICA ET BIOPHYSICA ACTA-GENE STRUCTURE AND EXPRESSION
影响因子:
--
作者:
Lee, JM;Anderson, PC;Johnson, JA
通讯作者:
Johnson, JA
DOI:
10.4103/1319-3767.105909
发表时间:
2013-01
期刊:
Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association
影响因子:
--
作者:
Al-Shboul OA
通讯作者:
Al-Shboul OA