Ovariectomy-Induced Hepatic Lipid and Cytochrome P450 Dysmetabolism Precedes Serum Dyslipidemia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F21%3A00081028" target="_blank" >RIV/00023001:_____/21:00081028 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1422-0067/22/9/4527/htm" target="_blank" >https://www.mdpi.com/1422-0067/22/9/4527/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ijms22094527" target="_blank" >10.3390/ijms22094527</a>

Result language

angličtina

Original language name

Ovariectomy-Induced Hepatic Lipid and Cytochrome P450 Dysmetabolism Precedes Serum Dyslipidemia

Original language description

Ovarian hormone deficiency leads to increased body weight, visceral adiposity, fatty liver and disorders associated with menopausal metabolic syndrome. To better understand the underlying mechanisms of these disorders in their early phases of development, we investigated the effect of ovariectomy on lipid and glucose metabolism. Compared to sham-operated controls, ovariectomized Wistar female rats markedly increased whole body and visceral adipose tissue weight (p &lt; 0.05) and exhibited insulin resistance in peripheral tissues. Severe hepatic triglyceride accumulation (p &lt; 0.001) after ovariectomy preceded changes in both serum lipids and glucose intolerance, reflecting alterations in some CYP proteins. Increased CYP2E1 (p &lt; 0.05) and decreased CYP4A (p &lt; 0.001) after ovariectomy reduced fatty acid oxidation and induced hepatic steatosis. Decreased triglyceride metabolism and secretion from the liver contributed to hepatic triglyceride accumulation in response to ovariectomy. In addition, interscapular brown adipose tissue of ovariectomized rats exhibited decreased fatty acid oxidation (p &lt; 0.01), lipogenesis (p &lt; 0.05) and lipolysis (p &lt; 0.05) despite an increase in tissue weight. The results provide evidence that impaired hepatic triglycerides and dysregulation of some CYP450 proteins may have been involved in the development of hepatic steatosis. The low metabolic activity of brown adipose tissue may have contributed to visceral adiposity as well as triglyceride accumulation during the postmenopausal period.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10608 - Biochemistry and molecular biology

Project

<a href="/en/project/NU20-01-00083" target="_blank" >NU20-01-00083: Reproductive age and genetic factors as predictors of vascular damage in diabetes mellitus</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International journal of molecular sciences

ISSN

1661-6596

e-ISSN

—

Volume of the periodical

22

Issue of the periodical within the volume

9

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

"art. no. 4527"

UT code for WoS article

000650399200001

EID of the result in the Scopus database

2-s2.0-85104622906