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28992

Modulation of Fetuin-A by Estrogen and Caloric Restriction in Experimental Rat Model of Menopause

Article

Last updated: 24 Dec 2024

Subjects

-

Tags

Endocrine and Reproductive Physiology

Abstract

Background and objectives: Menopause is accompanied by higher prevalence of atherogenic lipid profiles, central obesity, and insulin resistance. Hepatic steatosis is frequent in postmenopausal women. Fetuin-A level is strongly related to liver fat content. Its role in menopausal metabolic derangements is largely unknown. We aimed to investigate the relation between fetuin-A and the development of menopausal metabolic complications related to obesity and if caloric restriction/estrogen supplementation could alleviate these abnormalities. Methods: Adult female Wistar rats were either bilaterally ovariectomized (OVX) (30 rats) or sham operated (sham group, n=10 rats). OVX rats were randomly subdivided into ovariectomized group (OVX), ovariectomized group treated with 17-β estradiol (OVX+E2), and ovariectomized- caloric restricted group (OVX+CR) (n=10/group). Thirteen weeks following surgery, serum levels of glucose, insulin, lipids, fetuin-A and adiponectin were estimated. Weight of visceral fat and triacylglycerol (TAG) content of liver were assessed. Results: Serum fetuin-A level was increased following ovariectomy (113%, P<0.001). This was associated with increased visceral adiposity, abnormal lipid profile, insulin resistance, hypoadiponectinaemia and excessive accumulation of hepatic triacylglycerol (TAG). However, estrogen (E2) supplementation/caloric restriction (CR) significantly suppressed elevated Fetuin-A (by 41.9%, P<0.001 and 31.2%, P<0.001, respectively). In addition, CR was equally effective as E2 replacement in reversing metabolic abnormalities. Conclusion: Fetuin-A could be one of the factors contributing to the development of metabolic complications related to menopausal obesity. Caloric restriction alone can ameliorate those complications without the hazardous effects of estrogen replacement; possibly, through inhibition of serum fetuin-A level.

DOI

10.21608/besps.2015.28992

Keywords

Menopause, Ovariectomy, Visceral obesity, Fetuin-A, adiponectin

Authors

First Name

Doaa

Last Name

Samya

MiddleName

-

Affiliation

Department of Medical Physiology, Faculty of Medicine, Alexandria University, Egypt.

Email

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City

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Orcid

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First Name

Nahed

Last Name

El Sokkary

MiddleName

-

Affiliation

Department of Medical Physiology, Faculty of Medicine, Alexandria University, Egypt

Email

-

City

-

Orcid

-

Volume

35

Article Issue

1

Related Issue

5119

Issue Date

2015-06-01

Receive Date

2014-10-11

Publish Date

2015-06-01

Page Start

1

Page End

15

Print ISSN

1110-0842

Online ISSN

2356-9514

Link

https://besps.journals.ekb.eg/article_28992.html

Detail API

https://besps.journals.ekb.eg/service?article_code=28992

Order

1

Type

Original Article

Type Code

567

Publication Type

Journal

Publication Title

Bulletin of Egyptian Society for Physiological Sciences

Publication Link

https://besps.journals.ekb.eg/

MainTitle

Modulation of Fetuin-A by Estrogen and Caloric Restriction in Experimental Rat Model of Menopause

Details

Type

Article

Created At

22 Jan 2023