Plantes
RAVINTSARA et IMMUNITE
9 novembre 2022
Présentation du Ravintsara
Originaire d’Asie, ce Camphrier traverse l’océan indien jusqu’à Madagascar où il s’installe, se plaît et s’adapte. Sur le sol malgache, il évolue, perd quasiment tout son camphre et s’enrichit d’une autre molécule : le 1.8 cinéol (eucalyptol). L’arbre plaît aux Malgaches qui l’appellent Ravintsara, ce qui signifie « bonne feuille ». Ils l’utilisent traditionnellement comme une panacée pour une multitude de soucis.(1),(2),(3)
L’apport du ravintsara pour l’immunité
Concernant l’immunité, voilà un précieux allié. Son eucalyptol y est pour beaucoup.(2),(4):
- activité anti-virale (5),(6),
- activité antibactérienne (7),(8),(9),(10),(11),(12),
- par exemple en inhibant la croissance de bactéries en endommageant leurs parois cellulaires(13),(14),
- activité mucolytique et spasmolytique des voies respiratoires#sources,
- aide en cas de rhinosinusite(20),(21),
- offre une protection contre la pneumonie chez les souris(22),
- en association avec un anti-viral a un effet positif sur la grippe A chez les souris (l’association eucalyptol et anti-viral, avait un effet supérieur à l’anti-viral seul)(23).
Sources
(1) Huile essentielle de Ravintsara, un trésor Malgache – pranarom – 2020 – https://www.pranarom.fr/fr/blog/post/huile-essentielle-de-ravintsara-un-tresor-malgache.html
(2) Le pouvoir des huiles essentielles : le ravintsara dans tous ses états – Nathalie De Wulf – RTBF – 2021 – https://www.rtbf.be/tendance/bien-etre/detail_le-pouvoir-des-huiles-essentielles-le-ravintsara-dans-tous-ses-etats?id=10804040&gclid=Cj0KCQiA5aWOBhDMARIsAIXLlkfZNU2q81MzMbewZSWXfM_eC05bAKxaih2fleEZkzybWkrbYppixRAaApjiEALw_wcB
(3) Ravintsara – puressentiel – https://fr.puressentiel.com/blogs/recettes-herbier/ravintsara
(4) Huile essentielle de ravintsara – Céline Hilpipre – passeport santé – 2021 – https://www.passeportsante.net/fr/Solutions/HuilesEssentielles/Fiche.aspx?doc=huile-essentielle-ravintsara
(5) Comparative study on the antiviral activity of selected monoterpenes derived from essential oils – Akram Astani, Jürgen Reichling, and Paul Schnitzler -Phytother. Res.- 2010 – https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7167768/
(6) New Perspectives for Mucolytic, Anti-inflammatory and Adjunctive Therapy with 1,8-Cineole in COPD and Asthma: Review on the New Therapeutic Approach – Lisa Joy Juergens, Heinrich Worth, Uwe R Juergens- Adv. Ther. – 2020 – https://pubmed.ncbi.nlm.nih.gov/32200535/
(7) Evaluation of Antibacterial Activity of Some Traditionally Used Medicinal Plants against Human Pathogenic Bacteria – Bishnu P. Marasini, Pankaj Baral, Pratibha Aryal, Kashi R. Ghimire, Sanjiv Neupane, Nabaraj Dahal,Anjana Singh, Laxman Ghimire, and Kanti Shresth – BioMed Research International – 2015 – https://www.hindawi.com/journals/bmri/2015/265425/
(8) Study on Subcritical Fluid Extraction of Essential Oil from Cinnamomum camphora and Its Antibacterial Activity – Hai-xu Zhou, Zhong-hai Li, Xiang-jin Fu, Hui Zhang – Zhong Yao Cai – 2016 – https://pubmed.ncbi.nlm.nih.gov/30156808/
(9) Study on Antibacterial and Quorum-Sensing Inhibition Activities of Cinnamomum camphora Leaf Essential Oil – Wenting Wang, Dongxiang Li, Xiaoqin Huang, Huixiang Yang, Ziwen Qiu, Liting Zou, Qin Liang, Yu Shi, Yingxiang Wu , Shaohua Wu, Chao Yang , Yongyu Li – Molecules -2019 – https://pubmed.ncbi.nlm.nih.gov/31640286/
(10) Antibacterial Activity of Cinnamomum camphora Essential Oil on Escherichia coli During Planktonic Growth and Biofilm Formation – Lei Wang, Kang Zhang, Kai Zhang, Jingyan Zhang, Jingjing Fu, Jie Li, Guibo Wang, Zhengying Qiu, Xuezhi Wang, Jianxi Li – Front Microbiol – 2020 – https://pubmed.ncbi.nlm.nih.gov/33304322/
(11) RNA-seq analysis of antibacterial mechanism of Cinnamomum camphora essential oil against Escherichia coli – Yutian Yu, Jie Dong, Yanlu Wang, Xi Gong- Peerj – 2021 – https://pubmed.ncbi.nlm.nih.gov/33777538/
(12) Cinnamomum camphora à cinéol (ravintsara), une plante au service de la prévention des infections nosocomiales en milieu hospitalier ?- J. -M. Blanchard – Phytotherapie – 2007 – https://www.researchgate.net/publication/225487214_Cinnamomum_camphoraa_cineole_ravintsara_une_plante_au_service_de_la_prevention_des_infections_nosocomiales_en_milieu_hospitalier
(13) Antibacterial activity and mechanism of pinoresinol from Cinnamomum Camphora leaves against food-related bacteria – Haixu Zhou, Jiali Ren, Zhonghai Li – Food Control – 2017 – Antibacterial activity and mechanism of pinoresinol from Cinnamomum Camphora leaves against food-related bacteria – https://www.sciencedirect.com/science/article/abs/pii/S0956713517301652
(14) Metabolomics analysis to evaluate the antibacterial activity of the essential oil from the leaves of Cinnamomum camphora (Linn.) Presl – Jiali Chen , Cailin Tang , Rongfei Zhang , Shaoxia Ye , Zhimin Zhao, Yuquan Huang, Xinjun Xu , Wenjian Lan, Depo Yang – J. Ethnopharmacol. -2020. – https://pubmed.ncbi.nlm.nih.gov/32035880/
(15) Anti-inflammatory properties of the monoterpene 1.8-cineole: current evidence for co-medication in inflammatory airway diseases – U R Juergens -Drug. Res. (Stuttg.) – 2014 – https://pubmed.ncbi.nlm.nih.gov/24831245/
(16) Concomitant therapy with Cineole (Eucalyptole) reduces exacerbations in COPD: a placebo-controlled double-blind trial – Heinrich Worth, Christian Schacher, Uwe Dethlefsen – Respir. Res. – 2009 – https://pubmed.ncbi.nlm.nih.gov/19624838/
(17) Patients with asthma benefit from concomitant therapy with cineole: a placebo-controlled, double-blind trial – Heinrich Worth 1 , Uwe Dethlefsen – J. Asthma – 2012 – https://pubmed.ncbi.nlm.nih.gov/22978309/
(18) (18)Inhibitory activity of 1,8-cineol (eucalyptol) on cytokine production in cultured human lymphocytes and monocytes – Uwe R Juergens 1 , Tanja Engelen, Kurt Racké, Meinolf Stöber, Adrian Gillissen, Hans Vetter – Pulm Pharmacol Ther – 2004 -. https://pubmed.ncbi.nlm.nih.gov/15477123/
(20) Increased phosphorylation of eNOS in nasal polyps of chronic rhinosinusitis patients can be diminished by 1,8-cineol – Michael Koennecke, Frederick Benecke, Anja Masche, Robert Linke, Karl-Ludwig Bruchhage , Ralph Pries, Ludger Klimek, Barbara Wollenberg – Nitric. Oxide -2018 – https://pubmed.ncbi.nlm.nih.gov/29885366/
(21) The Therapeutic Effect of 1,8-Cineol on Pathogenic Bacteria Species Present in Chronic Rhinosinusitis – Matthias Schürmann, Felix Oppel, Martin Gottschalk, Björn Büker, Christian Andreas Jantos , Cornelius Knabbe, Andreas Hütten, Barbara Kaltschmidt, Christian Kaltschmidt , Holger Sudhoff – Front. Microbiol. – 2019 – https://pubmed.ncbi.nlm.nih.gov/31708879/
(22) 1, 8-Cineol Protect Against Influenza-Virus-Induced Pneumonia in Mice – Yun Li, Yanni Lai, Yao Wang, Ni Liu, Fengxue Zhang , Peiping Xu – Inflammation – 2016 –
https://pubmed.ncbi.nlm.nih.gov/27351430/
(23) Combinations of 1,8-cineol and oseltamivir for the treatment of influenza virus A (H3N2) infection in mice – Yan-Ni Lai, Yun Li , Lin-Chun Fu, Fang Zhao, Ni Liu, Feng-Xue Zhang, Pei-Ping Xu -J. Med. Virol. – 2017 – https://pubmed.ncbi.nlm.nih.gov/27966790