Abstract Title:

Industrial Elimination of Essential Oils from: In Support of the Synergic Antifibrotic Effect of Rosmarinic and Carnosic Acids in Bleomycin Model of Lung Fibrosis.

Abstract Source:

Nutr Cancer. 2020 Oct 16:1-12. Epub 2020 Oct 16. PMID: 33059466

Abstract Author(s):

Sana Bahri, Ridha Ben Ali, Raed Abdennabi, Afef Nahdi, Mona Mlika, Saloua Jameleddine

Article Affiliation:

Sana Bahri


Idiopathic pulmonary fibrosis (IPF) is an interstitial lung disease characterized by collagen deposition as a consequence of excessive lung fibroblasts and myofibroblasts proliferation. We aimed to investigate for the first time the effect of rosemary leaf extract rich with carnosic acid (CA) or rosmarinic acid (RA), after industrial elimination of essential oils, against bleomycin (BLM)-induced lung fibrosis in rats. Male Wistar rats were given a single dose of BLM (4 mg/kg, intratracheal), while CA rich extract, RA rich extract or the combination RA/CA rich extracts (10, 75 and 150 mg/kg, intraperitoneal) were administered 3 day later and continued for 4 weeks. We reveled by HPLC an important similar amount of phenolic compounds such as pyrogallol, vanillic, gallic and ellagic acids in both rosemary extracts. BLM induced lung fibrotic foci and disturbance in superoxide dismutase, catalase and malondialdehyde levels. At 10 mg/kg, both rosemary extracts administrated alone or in combination alleviated synergistically lung fibrosis and amelioratedoxidative changes induced by BLM. In conclusion, industrial elimination of essential oils from rosemary allowed us to obtain two extracts with potent antifibrotic activities due to the large amount of RA and CA that appear much higher and effective than wild rosemary extract.

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