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lang="fr-FR"> Comment s’expliquent les dangers du cannabis - https://dev.medias-presse.info
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Site icon https://dev.medias-presse.info

Comment s’expliquent les dangers du cannabis

Les conséquences de l’usage du cannabis sont actuellement de mieux en mieux documentées. On sait qu’il peut entraîner des cancers du poumon, des psychoses, de la schizophrénie et des problèmes de fertilité. Comment les expliquer ?  Il est facile de retrouver l’étude des Dr Reece et Hulse de l’Université de l’Australie de l’Ouest, publiée le 24 mai dernier. Dans la lettre XCIV du Centre National de Prévention, d’Etudes et de Recherches sur les Toxicomanies (CNPERT) il est fait référence à ce texte paru en juillet 2016 dans la revue de génétique Mutation Research,.

Des explications sont données concernant les conséquences de l’usage du cannabis sur la santé. Ceci explique l’augmentation de la fréquence de certains cancers, sa génotoxicité (toxicité sur les gènes), sa tératogénicité (apparition de malformations fœtales de la descendance).

« La consommation de cannabinoïdes chez l’Homme produit : une dispersion du matériel génétique cellulaire en plusieurs micronoyaux ; d’importantes modifications morphologiques des chromosomes= « effet clastogène » ; des erreurs de répartition du matériel génétique entre les cellules filles au cours de la division cellulaire ; un arrêt de croissance de certains tissus. »

Apparemment, parmi les effets du cannabis, on constate donc une « pulvérisation » des chromosomes qui ensuite se reconstituent plus ou moins bien. Il en découle l’apparition de centres diffus d’informations appelés épigénétiques. Le plus grave est que ces mutations génétiques sont transmissibles à la descendance puis aux générations suivantes. En pratique, il s’agit d’anomalies de la division cellulaire et du fonctionnement de la cellule. En clair des maladies comme le cancer peuvent être induites chez les fumeurs de cannabis mais aussi chez ses enfants  et petits- enfants etc. Il n’existe pas à ce jour de moyens de contrer cette explosion des chromosomes et encore moins d’y pallier de quelque manière.

Les consommateurs et ceux qui souhaitent la légalisation du cannabis feraient bien de prendre connaissance de ces données.

Jean-Pierre Dickès

A lire aussi :

Cannabis, danger pour le cœur

Cannabis : un danger supplémentaire

Le cannabis est-il dangereux ?

La preuve des dangers du cannabis est désormais établie

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