title: Bariatric surgery, lipoprotein metabolism and cardiovascular risk.
abstract: OBJECTIVE
  To summarize recent epidemiological, preclinical and clinical studies on the effects of Roux-en-Y-gastric bypass (RYGBP) surgery on cardiovascular risk factors and the underlying mechanisms.
  
  
  RESULTS
  Although RYGBP has mechanical effects on the gastrointestinal tract, the reduced gastric pouch and intestinal calorie absorption cannot fully explain the metabolic improvements.
  
  
  CONCLUSIONS
  Obesity predisposes to cardiovascular risk factors such as dyslipidemia, type 2 diabetes, nonalcoholic fatty liver disease and hypertension. In contrast to the limited success of pharmacological and lifestyle interventions, RYGBP induces sustained weight loss, metabolic improvements and decreases morbidity/mortality. In line, RYGBP reduces cardiovascular risk factors. Although the mechanisms are not entirely understood, RYGBP induces complex changes in the gut affecting other organs through endocrine and metabolic signals from the intestine to all key metabolic organs, which can link RYGBP and decreased cardiovascular risk. Here, we discuss the roles of changes in lipid absorption and metabolism, bile acid metabolism, gut hormones and the microbiote as potential mechanisms in the decreased cardiovascular risk and metabolic improvement after RYGBP.
authors.affiliation: aEuropean Genomic Institute for Diabetes (EGID) bINSERM UMR1011 cUniv Lille 2 dInstitut Pasteur de Lille, Lille, France eBiomedical Sciences Research Center 'Alexander Fleming', Vari, Greece fINSERM UMR1190, Lille, France.
authors.forename: Anne
authors.initials: A
authors.lastname: Tailleux
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Rouskas
authors.forename: François
authors.initials: F
authors.lastname: Pattou
authors.forename: Bart
authors.initials: B
authors.lastname: Staels
mesh_terms: D000818:Animals; D050110:Bariatric Surgery; D002318:Cardiovascular Diseases / Q000150:complications / Q000453:epidemiology* / Q000378:metabolism* / Q000517:prevention & control; D006801:Humans; D008074:Lipoproteins / Q000378:metabolism*; D012307:Risk Factors
chemical_list: D008074:Lipoproteins