Matta Pereira, L. ; Breves, C.* ; Fonte Boa, L.* ; Domingos, A.E.* ; Faria, C.C.* ; Souza, I.* ; Correia Lima-Junior, N.* ; Rocha, A.P.T.* ; Gregorio, B.M.* ; Carvalho, D.P.* ; Ferreira, A.C.F.* ; Nascimento, J.H.M.* ; Maciel, L.* ; Fortunato, R.S.*
Quercetin improves white adipose tissue redox homeostasis in ovariectomized rats.
J. Endocrinol. 259:e230166 (2023)
Estrogen deficiency is a well-known hallmark of menopause and is associated with oxidative stress and metabolic dysfunction. Quercetin (Q), a flavonoid found in fruits and vegetables, has demonstrated anti-inflammatory effects in experimental models of metabolic disorders. In this study, we aimed to investigate the effects of quercetin on retroperitoneal white adipose tissue (rWAT) redox homeostasis and systemic metabolic parameters in ovariectomized (OVX) rats. Female Wistar rats at 3 months old were divided into the following experimental groups: sham-operated treated with vehicle (DMSO 10% + PBS - 1 mL/kg); OVX (vehicle treated) and OVX-Q (25 mg/kg) - via oral gavage, daily for 5 weeks. Q did not prevent weight gain but improved glucose tolerance and blood cholesterol profile, and attenuated uterine atrophy in OVX rats. Furthermore, Q had a protective effect on rWAT, once the OVX-Q group presented lower oxidative stress levels, and reduced levels of the pro-inflammatory cytokine tumor necrosis factor alpha, compared to the OVX group. Q improved antioxidant enzyme activities such as superoxide dismutase and catalase and decreased reactive oxygen species production, in OVX-Q rats. It was followed by increased levels of total thiol content and lower lipid peroxidation. Moreover, Q reduced senescent-related genes p16INK4a and p19ARF expression which were higher in the OVX group. In conclusion, quercetin supplementation improved redox homeostasis and reduced senescence-related markers, and inflammation in rWAT, which was reflected in preserved systemic metabolic health parameters in OVX rats. These findings suggest that quercetin may have therapeutic potential for the management of metabolic disorders associated with menopause-induced estrogen deficiency.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Adipose Tissue ; Metabolic Dysfunction ; Ovariectomy ; Oxidative Stress; Proliferative Changes; Sexual-dimorphism; Estrogen; Expression; Uteri; Mice
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2023
Prepublished im Jahr
0
HGF-Berichtsjahr
2023
ISSN (print) / ISBN
0022-0795
e-ISSN
1479-6805
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 259,
Heft: 2,
Seiten: ,
Artikelnummer: e230166
Supplement: ,
Reihe
Verlag
Society for Endocrinology
Verlagsort
Starling House, 1600 Bristol Parkway N, Bristol, England
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
90000 - German Center for Diabetes Research
Forschungsfeld(er)
Helmholtz Diabetes Center
PSP-Element(e)
G-501900-250
Förderungen
Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
Fundacao de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ)
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
Copyright
Erfassungsdatum
2023-12-04