Camellia sinensis powder rich in epicatechin and polyphenols attenuates isoprenaline induced cardiac injury by activating the Nrf2 HO1 antioxidant pathway in rats

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F25%3A00638518" target="_blank" >RIV/61389030:_____/25:00638518 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1038/s41598-025-08720-w" target="_blank" >https://doi.org/10.1038/s41598-025-08720-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-025-08720-w" target="_blank" >10.1038/s41598-025-08720-w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Camellia sinensis powder rich in epicatechin and polyphenols attenuates isoprenaline induced cardiac injury by activating the Nrf2 HO1 antioxidant pathway in rats

Popis výsledku v původním jazyce

Myocardial infarction is a leading cause of death and morbidity in individuals with cardiovascular diseases. Natural antioxidants, such as those found in green tea leaves, are beneficial in preventing these diseases. This study evaluated the protective effects of green tea leaves powder against isoprenaline (ISO)-induced myocardial infarction in rats. Four groups of male Long Evans rats were used: Control, Control + green tea leaves powder, ISO, and ISO + green tea leaves powder. Organ and blood plasma samples were collected to measure oxidative stress biomarkers, biochemical parameters, and gene expressions. Furthermore, tissue sections were prepared and stained histologically. ISO-induced rats showed decreased cellular antioxidants (catalase activity and glutathione concentration) and elevated oxidative stress markers. Notable inflammatory cell infiltration and fibrosis were observed in the heart and kidneys of ISO-induced rats. Supplementation with green tea leaves powder significantly restored catalase activity and glutathione concentration (p < 0.05) in plasma and tissues. It also considerably reduced lipid peroxidation, nitric oxide, and advanced oxidation protein products (p < 0.05) in ISO-administered rats. Furthermore, green tea leaves powder supplementation halted inflammatory gene expression (p < 0.05), restored antioxidant genes (p < 0.05) such as Nrf-2-HO-1, and prevented cardiac fibrosis in ISO-administered rats. Green tea leaves powder supplementation may reduce oxidative stress, inflammation, and fibrosis in ISO-administered rats, potentially through the Nrf-2-HO-1-mediated restoration of antioxidant enzymes and prevention of heart inflammation.

Název v anglickém jazyce

Camellia sinensis powder rich in epicatechin and polyphenols attenuates isoprenaline induced cardiac injury by activating the Nrf2 HO1 antioxidant pathway in rats

Popis výsledku anglicky

Myocardial infarction is a leading cause of death and morbidity in individuals with cardiovascular diseases. Natural antioxidants, such as those found in green tea leaves, are beneficial in preventing these diseases. This study evaluated the protective effects of green tea leaves powder against isoprenaline (ISO)-induced myocardial infarction in rats. Four groups of male Long Evans rats were used: Control, Control + green tea leaves powder, ISO, and ISO + green tea leaves powder. Organ and blood plasma samples were collected to measure oxidative stress biomarkers, biochemical parameters, and gene expressions. Furthermore, tissue sections were prepared and stained histologically. ISO-induced rats showed decreased cellular antioxidants (catalase activity and glutathione concentration) and elevated oxidative stress markers. Notable inflammatory cell infiltration and fibrosis were observed in the heart and kidneys of ISO-induced rats. Supplementation with green tea leaves powder significantly restored catalase activity and glutathione concentration (p < 0.05) in plasma and tissues. It also considerably reduced lipid peroxidation, nitric oxide, and advanced oxidation protein products (p < 0.05) in ISO-administered rats. Furthermore, green tea leaves powder supplementation halted inflammatory gene expression (p < 0.05), restored antioxidant genes (p < 0.05) such as Nrf-2-HO-1, and prevented cardiac fibrosis in ISO-administered rats. Green tea leaves powder supplementation may reduce oxidative stress, inflammation, and fibrosis in ISO-administered rats, potentially through the Nrf-2-HO-1-mediated restoration of antioxidant enzymes and prevention of heart inflammation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10608 - Biochemistry and molecular biology

Projekt

<a href="/cs/project/GA23-05389S" target="_blank" >GA23-05389S: Nové CB2 a BChE modulátory proti Parkinsonově chorobě a souvisejícím patologiím</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

2045-2322

Svazek periodika

15

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

23

Strana od-do

20859

Kód UT WoS článku

001522988900025

EID výsledku v databázi Scopus

2-s2.0-105009698098