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An observation on inappropriate probiotic subgroup classifications in the meta-analysis by Lau and Chamberlain

Authors McFarland LV

Received 17 August 2016

Accepted for publication 18 August 2016

Published 30 September 2016 Volume 2016:9 Pages 333—336

DOI https://doi.org/10.2147/IJGM.S119970

Checked for plagiarism Yes

Editor who approved publication: Dr Scott Fraser


Lynne V McFarland

Department of Medicinal Chemistry, University of Washington, Seattle, WA, USA
 
I read with great interest the systematic review of meta-analysis assessing probiotics for the prevention of Clostridium difficile-associated diarrhea (CDAD) published in the International Journal of General Medicine. These authors pooled 26 randomized controlled trials (RCTs) and concluded that Lactobacilli, mixtures, and Saccharomyces probiotics were effective in preventing CDAD. However, the meta-analysis by Lau and Chamberlain is flawed due to improper classification by the types of probiotics. It is important to recognize that the efficacy of probiotics for various diseases has been shown to be strain specific for each probiotic product, and thus the data should only be pooled for probiotics that are of the identical type. In their analysis of probiotic subgroups by various species, the authors have inappropriately merged different types of Lactobacilli into one subgroup “Lactobacilli” and different types of mixtures into one group classified as “Mix”.
View the original paper by Lau and Chamberlain. 


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