N Lender1, N J Talley, P Enck, S Haag, S Zipfel, M Morrison, G J Holtmann. 1. Department of Gastroenterology & Hepatology, Princess Alexandra Hospital, Woolloongabba, Qld, Australia; Faculty of Medicine and Biomedicine & Faculty of Health and Behavioural Sciences, University of Queensland, St Lucia, Qld, Australia.
Abstract
BACKGROUND: There is emerging debate over the effect of Helicobacter pylori infection on body mass index (BMI). A recent study demonstrated that individuals who underwent H. pylori eradication developed significant weight gain as compared to subjects with untreated H. pylori colonisation. AIM: To elucidate the association between H. pylori colonisation and the prevalence of overweight and obesity in developed countries. METHODS: The literature was searched for publications reporting data on H. pylori prevalence rates and obesity prevalence rates. Studies selected reported H. pylori prevalence in random population samples with sample sizes of more than 100 subjects in developed countries (GDP >25,000 US$/person/year). Corresponding BMI distributions for corresponding countries and regions were identified. Nonparametric tests were used to compare the association between H. pylori and overweight and obesity rates. RESULTS: Forty-nine studies with data from 10 European countries, Japan, the US and Australia were identified. The mean H. pylori rate was 44.1% (range 17-75%), the mean rates for obesity and overweight were 46.6 (± 16)% and 14.2 (± 8.9)%. The rate of obesity and overweight were inversely and significantly (r = 0.29, P < 0.001) correlated with the prevalence of H. pylori infection. CONCLUSIONS: There is an inverse correlation between H. pylori prevalence and rate of overweight/obesity in countries of the developed world. Thus, the gradual decrease of the H. pylori colonisation that has been observed in recent decades (or factors associated with decrease of) could be causally related to the obesity endemic observed in the Western world.
BACKGROUND: There is emerging debate over the effect of Helicobacter pyloriinfection on body mass index (BMI). A recent study demonstrated that individuals who underwent H. pylori eradication developed significant weight gain as compared to subjects with untreated H. pylori colonisation. AIM: To elucidate the association between H. pylori colonisation and the prevalence of overweight and obesity in developed countries. METHODS: The literature was searched for publications reporting data on H. pylori prevalence rates and obesity prevalence rates. Studies selected reported H. pylori prevalence in random population samples with sample sizes of more than 100 subjects in developed countries (GDP >25,000 US$/person/year). Corresponding BMI distributions for corresponding countries and regions were identified. Nonparametric tests were used to compare the association between H. pylori and overweight and obesity rates. RESULTS: Forty-nine studies with data from 10 European countries, Japan, the US and Australia were identified. The mean H. pylori rate was 44.1% (range 17-75%), the mean rates for obesity and overweight were 46.6 (± 16)% and 14.2 (± 8.9)%. The rate of obesity and overweight were inversely and significantly (r = 0.29, P < 0.001) correlated with the prevalence of H. pyloriinfection. CONCLUSIONS: There is an inverse correlation between H. pylori prevalence and rate of overweight/obesity in countries of the developed world. Thus, the gradual decrease of the H. pylori colonisation that has been observed in recent decades (or factors associated with decrease of) could be causally related to the obesity endemic observed in the Western world.
Authors: Lars Agréus; Per M Hellström; Nicholas J Talley; Bengt Wallner; Anna Forsberg; Michael Vieth; Lothar Veits; Karin Björkegren; Lars Engstrand; Anna Andreasson Journal: United European Gastroenterol J Date: 2015-12-18 Impact factor: 4.623
Authors: Melina Arnold; Amy Colquhoun; Michael B Cook; Jacques Ferlay; David Forman; Isabelle Soerjomataram Journal: Cancer Epidemiol Biomarkers Prev Date: 2015-10-22 Impact factor: 4.254