Article ; Online: Melissa officinalis extract palliates redox imbalance and inflammation associated with hyperthyroidism-induced liver damage by regulating Nrf-2/ Keap-1 gene expression in γ-irradiated rats.
BMC complementary medicine and therapies
2024 Volume 24, Issue 1, Page(s) 71
Abstract: Background: Melissa officinalis (MO) is a well-known medicinal plant species used in the treatment of several diseases; it is widely used as a vegetable, adding flavour to dishes. This study was designed to evaluate the therapeutic effect of MO Extract ... ...
| Abstract | Background: Melissa officinalis (MO) is a well-known medicinal plant species used in the treatment of several diseases; it is widely used as a vegetable, adding flavour to dishes. This study was designed to evaluate the therapeutic effect of MO Extract against hyperthyroidism induced by Eltroxin and γ-radiation. Methods: Hyperthyroidism was induced by injecting rats with Eltroxin (100 µg/kg/ day) for 14 days and exposure to γ-radiation (IR) (5 Gy single dose). The hyperthyroid rats were orally treated with MO extract (75 mg/kg/day) at the beginning of the second week of the Eltroxin injection and continued for another week. The levels of thyroid hormones, liver enzymes and proteins besides the impaired hepatic redox status and antioxidant parameters were measured using commercial kits. The hepatic gene expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and its inhibitor Kelch-like ECH-associated protein-1(Keap-1) in addition to hepatic inflammatory mediators including tumor necrosis factor-α (TNF- α), Monocyte chemoattractant protein-1 (MCP-1) and fibrogenic markers such as transforming growth factor-beta1 (TGF-β1) were determined. Results: MO Extract reversed the effect of Eltroxin + IR on rats and attenuated the thyroid hormones. Moreover, it alleviated hyperthyroidism-induced hepatic damage by inhibiting the hepatic enzymes' activities as well as enhancing the production of proteins concomitant with improving cellular redox homeostasis by attenuating the deranged redox balance and modulating the Nrf2/Keap-1 pathway. Additionally, MO Extract alleviated the inflammatory response by suppressing the TNF- α and MCP-1 and prevented hepatic fibrosis via Nrf2-mediated inhibition of the TGF-β1/Smad pathway. Conclusion: Accordingly, these results might strengthen the hepatoprotective effect of MO Extract in a rat model of hyperthyroidism by regulating the Nrf-2/ Keap-1 pathway. |
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| MeSH term(s) | Animals ; Rats ; Gene Expression ; Hyperthyroidism/complications ; Hyperthyroidism/drug therapy ; Inflammation/metabolism ; Liver ; Melissa/chemistry ; NF-E2-Related Factor 2/metabolism ; Oxidation-Reduction ; Plant Extracts/pharmacology ; Plant Extracts/therapeutic use ; Thyroid Hormones/metabolism ; Thyroxine/genetics ; Thyroxine/metabolism ; Transforming Growth Factor beta1/metabolism ; Liver Diseases/etiology ; Liver Diseases/therapy |
| Chemical Substances | NF-E2-Related Factor 2 ; Plant Extracts ; Thyroid Hormones ; Thyroxine (Q51BO43MG4) ; Transforming Growth Factor beta1 |
| Language | English |
| Publishing date | 2024-02-01 |
| Publishing country | England |
| Document type | Journal Article |
| ISSN | 2662-7671 |
| ISSN (online) | 2662-7671 |
| DOI | 10.1186/s12906-024-04370-z |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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