{"id":15688,"date":"2020-06-16T16:34:57","date_gmt":"2020-06-16T15:34:57","guid":{"rendered":"https:\/\/cri1149.fr\/?post_type=publications&#038;p=15688"},"modified":"2025-09-11T16:48:01","modified_gmt":"2025-09-11T14:48:01","slug":"long-term-consequences-of-one-anastomosis-gastric-bypass-on-esogastric-mucosa-in-a-preclinical-rat-model","status":"publish","type":"publication","link":"https:\/\/cri1149.fr\/en\/publication\/long-term-consequences-of-one-anastomosis-gastric-bypass-on-esogastric-mucosa-in-a-preclinical-rat-model\/","title":{"rendered":"Long-term consequences of one anastomosis gastric bypass on esogastric mucosa in a preclinical rat model"},"content":{"rendered":"","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false},"category_publication":[],"class_list":["post-15688","publication","type-publication","status-publish","hentry"],"acf":{"numero_de_publication":"[:fr]Scientific Reports[:]","date_de_publication":"20200430","numero_doi":"","equipe":[131],"auteurs-liste":[{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Matthieu Siebert[:]"},{"texte_libre":false,"auteur-lien":13175,"auteur-text":[]},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Nicholas D. Nguyen[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Muriel Hourseau[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Belinda Duch\u00eane[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Lydie Humbert[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Nicolas Jonckheere[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Gr\u00e9gory Nuel[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Jean-Marc Chevallier[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Henri Duboc[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Dominique Rainteau[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Simon Msika[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Nathalie Kapel[:]"},{"texte_libre":true,"auteur-lien":null,"auteur-text":"[:fr]Anne Couvelard[:]"},{"texte_libre":false,"auteur-lien":13025,"auteur-text":[]},{"texte_libre":false,"auteur-lien":13105,"auteur-text":[]}],"auteurs-manuel":"","liens_externes":null,"liens":[{"lien":"https:\/\/www.nature.com\/articles\/s41598-020-64425-2"}],"paragraphe":"[:fr]<p style=\"text-align: justify;\">La chirurgie bariatrique est aujourd\u2019hui le traitement efficace de l\u2019ob\u00e9sit\u00e9 morbide car elle permet d\u2019induire une perte de poids importante qui se \u00a0maintient \u00a0sur le long terme. Cependant les effets ind\u00e9sirables des remodelages gastro-intestinaux induits par la chirurgie \u00a0\u00e0 long terme n'ont pas encore \u00e9t\u00e9 enti\u00e8rement caract\u00e9ris\u00e9s.<\/p>\r\n<p style=\"text-align: justify;\">La derni\u00e8re \u00e9tude publi\u00e9e par l\u2019\u00e9quipe PIMS (M. Le Gall &amp; A Bado) dans Scientific Reports a compar\u00e9, dans un mod\u00e8le pr\u00e9clinique chez le rat, les cons\u00e9quences \u00e0 long terme de deux types de chirurgie bariatrique : le bypass gastrique \u00e0 une anastomose (OAGB) et le bypass gastrique de type Roux-en-Y (RYGB) (voir Figure). Les auteurs ont \u00e9valu\u00e9 l'influence de la longueur de l\u2019anse biliopancr\u00e9atique, de la malabsorption et du reflux d'acide biliaire sur les muqueuses oesogastriques.<\/p>\r\n<p style=\"text-align: justify;\">Apr\u00e8s 30 semaines de suivi, les rats op\u00e9r\u00e9s par la technique OAGB\u00a0 pr\u00e9sentaient un taux plus \u00e9lev\u00e9 d'\u0153sophagite, de gastrite fundique et d'hyperplasie fov\u00e9olaire p\u00e9ri-anastomotique par rapport aux rats op\u00e9r\u00e9s par la technique RYGB. De plus, les rats OAGB avec une longue anse bilio-pancr\u00e9atique avaient \u00e9galement une perte de poids et une malabsorption plus importantes. Au contraire, les concentrations d\u2019acides biliaires \u00e9taient les plus \u00e9lev\u00e9es dans la poche gastrique r\u00e9siduelle des rats OAGB avec une anse bilio-pancr\u00e9atique plus courte. Pourtant, aucune association n'a pu \u00eatre \u00e9tablie entre les l\u00e9sions \u0153sogastriques, la malabsorption, la perte de poids ou les concentrations d'acide biliaire dans l'estomac r\u00e9siduel. Enfin, aucun cas de cancer de l'\u0153sophage, de m\u00e9taplasie, de dysplasie ou d\u2019\u0153sophage de Barrett, n\u2019a \u00e9t\u00e9 observ\u00e9.<\/p>\r\n<p style=\"text-align: justify;\">En conclusion, dans ce mod\u00e8le pr\u00e9clinique de rat, la chirurgie bariatrique de type RYGB donne un meilleur r\u00e9sultat \u00e0 long terme que l'OAGB, car des signes chroniques de reflux biliaire ou de gastrite r\u00e9actionnelle ont \u00e9t\u00e9 observ\u00e9s apr\u00e8s l'OAGB, m\u00eame apr\u00e8s r\u00e9duction de la longueur de l\u2019anse bilio-pancr\u00e9atique. Cette \u00e9tude encourage le suivi des patients op\u00e9r\u00e9s de OAGB pour s\u2019assurer qu\u2019ils ne d\u00e9veloppent pas de l\u00e9sions \u0153sogastriques sur le long terme.<\/p>\r\n<p style=\"text-align: justify;\"><img class=\"wp-image-15689 aligncenter\" src=\"https:\/\/cri1149.fr\/wp-content\/uploads\/2020\/06\/papier-siebert-fr-300x168.png\" alt=\"\" width=\"477\" height=\"267\" \/><\/p>\r\n<p style=\"text-align: justify;\">Figure\u00a0: Remodelage du tractus gastro-intestinal apr\u00e8s chirurgie bariatrique de type Bypass gastrique Roux-en-Y (RYGB) ou Bypass gastrique \u00e0 une anastomose (OAGB).<\/p>[:]","paragraphe_en":"<p style=\"text-align: justify;\">Nowadays, bariatric surgery is the only effective treatment for morbid obesity as it induces significant weight loss that is maintained over the long term. However, the adverse effects of gastrointestinal remodeling induced by long-term surgery have not yet been fully characterized.<\/p>\r\n<p style=\"text-align: justify;\">The last study published by the PIMS team (M. Le Gall &amp; A Bado) in Scientific Reports compared, in a preclinical rat model, the long-term consequences of two types of bariatric surgery: one anastomosis gastric bypass (OAGB) and Roux-en-Y gastric bypass (RYGB) (see Figure). The authors evaluated the influence of biliopancreatic limb length, malabsorption and bile acid reflux on the esogastric mucosa.<\/p>\r\n<p style=\"text-align: justify;\">After 30 weeks of follow-up, rats operated on OAGB presented a higher rate of esophagitis, fundal gastritis and peri-anastomotic foveolar hyperplasia compared to rats operated on RYGB. In addition, rats operated on OAGB with a long biliopancreatic limb also had greater weight loss and malabsorption. On the contrary, bile acid concentrations were highest in the residual gastric pouch of rats operated on OAGB with a shorter biliopancreatic limb. However, no association could be established between esogastric lesions, malabsorption, weight loss or bile acid concentrations in the residual gastric pouch. Finally, no cases of esophageal cancer, metaplasia, dysplasia, or Barrett's esophagus have been reported.<\/p>\r\n<p style=\"text-align: justify;\">In conclusion, in this preclinical rat model, RYGB bariatric surgery gives a better long-term outcomes than OAGB, as chronic signs of biliary reflux or reactive gastritis were observed after OAGB, even after reduction in the length of the biliopancreatic limb.<\/p>\r\n<p style=\"text-align: justify;\">This study encourages the follow-up of patients operated on OAGB to ensure that they do not develop esogastric lesions in the long-term.<\/p>\r\n<p style=\"text-align: justify;\"><img class=\"wp-image-15690 aligncenter\" src=\"https:\/\/cri1149.fr\/wp-content\/uploads\/2020\/06\/papier-siebert-en-300x164.png\" alt=\"\" width=\"593\" height=\"324\" \/><\/p>\r\n<p style=\"text-align: justify;\">Figure: Remodeling of the gastrointestinal tract after 2 bariatric surgeries: \u00a0Roux-en-Y Gastric Bypass (RYGB) and Gastric Bypass to Anastomosis (OAGB).<\/p>","documents":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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