Intestinal microbiota determine severity of myocardial infarction in rats. FASEB J 2012 Apr;26(4):1727-35
Date
01/17/2012Pubmed ID
22247331Pubmed Central ID
PMC3316900DOI
10.1096/fj.11-197921Scopus ID
2-s2.0-84860909327 (requires institutional sign-in at Scopus site) 280 CitationsAbstract
Signals from the intestinal microbiota are important for normal host physiology; alteration of the microbiota (dysbiosis) is associated with multiple disease states. We determined the effect of antibiotic-induced intestinal dysbiosis on circulating cytokine levels and severity of ischemia/reperfusion injury in the heart. Treatment of Dahl S rats with a minimally absorbed antibiotic vancomycin, in the drinking water, decreased circulating leptin levels by 38%, resulted in smaller myocardial infarcts (27% reduction), and improved recovery of postischemic mechanical function (35%) as compared with untreated controls. Vancomycin altered the abundance of intestinal bacteria and fungi, measured by 16S and 18S ribosomal DNA quantity. Pretreatment with leptin (0.12 μg/kg i.v.) 24 h before ischemia/reperfusion abolished cardioprotection produced by vancomycin treatment. Dahl S rats fed the commercially available probiotic product Goodbelly, which contains the leptin-suppressing bacteria Lactobacillus plantarum 299v, also resulted in decreased circulating leptin levels by 41%, smaller myocardial infarcts (29% reduction), and greater recovery of postischemic mechanical function (23%). Pretreatment with leptin (0.12 μg/kg i.v.) abolished cardioprotection produced by Goodbelly. This proof-of-concept study is the first to identify a mechanistic link between changes in intestinal microbiota and myocardial infarction and demonstrates that a probiotic supplement can reduce myocardial infarct size.
Author List
Lam V, Su J, Koprowski S, Hsu A, Tweddell JS, Rafiee P, Gross GJ, Salzman NH, Baker JEAuthors
John E. Baker PhD Professor in the Surgery department at Medical College of WisconsinNita H. Salzman MD, PhD Director, Professor in the Pediatrics department at Medical College of Wisconsin
MESH terms used to index this publication - Major topics in bold
AnimalsAnti-Bacterial Agents
Cytokines
Drinking Water
Humans
Intestines
Leptin
Metagenome
Myocardial Infarction
Myocardial Reperfusion Injury
Probiotics
Rats
Rats, Inbred Dahl
Vancomycin