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Abstract Title:

Luteolin mitigates tamoxifen-associated fatty liver and cognitive impairment in rats by modulating beta-catenin.

Abstract Source:

Eur J Pharmacol. 2021 Jul 12 ;908:174337. Epub 2021 Jul 12. PMID: 34265292

Abstract Author(s):

Rana K El-Asfar, Marwa O El-Derany, Al-Aliaa M Sallam, Sara A Wahdan, Ebtehal El-Demerdash, Sayed A Sayed, Hala O El-Mesallamy

Article Affiliation:

Rana K El-Asfar

Abstract:

BACKGROUND AND AIM: Tamoxifen (TAM) therapy has been associated with fatty liver diseases. Recently, multiple reports have also shown that TAM is related to cognitive impairment in patients with breast cancer. Luteolin, a natural flavonoid, has been traditionally used to treat various inflammatory disorders, such as chronic liver diseases, cognitive impairments, and cancers. This study aimed to evaluate the potential protective effects of luteolin against the cognitive defects and liver steatosis induced by TAM in rats.

EXPERIMENTAL APPROACH: The diseased group was subcutaneously (s.c) injected with TAM at a dose of 1 mg/kg daily for 7 days. The cotreated groups were given luteolin via oral gavage at a dose of 20 or 40 mg/kg concomitantly with s.c injection of TAM at a dose of 1 mg/kg for 7 days. All the groups were subjected to behavioral tests 24 h after the last TAM injection. Then, the rats were sacrificed 3 days after the last TAM injection.

RESULTS: Luteolin cotreatment significantly alleviated the behavioral defects in rats with TAM-induced cognitive impairment. This finding was supported by the reversal of neurodegeneration in the cortex and in the hippocampal regions of the brain. Furthermore, luteolin attenuated hepatic steatosis and decreased the levels of serum aminotransferases and hypertriglyceridemia. As an anti-inflammatory agent, luteolin cotreatment similarly decreased the levels of hepatic inflammatory markers and increased the levels of hepaticβ-catenin in TAM-induced fatty liver.

CONCLUSIONS: Luteolin improved the TAM-induced cognitive impairment and hepatic steatosis in rats by alleviating inflammation and modulating hepaticβ-catenin levels.

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