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Abdulkadir, Bashir; Nelson, Andrew; Skeath, Tom; Marrs, Emma; Perry, John; Cummings, Stephen; Embleton, Nicholas; Berrington, Janet; Stewart, Christopher (2016)
Publisher: Karger
Languages: English
Types: Article
Subjects: A100, C500

Classified by OpenAIRE into

mesheuropmc: digestive system, food and beverages
Objective - Probiotics are live microbial supplements that colonize the gut and potentially exert health benefit to the host. We aimed to determine the impact of probiotic (InfloranĀ®: Lactobacillus acidophilus-NCIMB701748 and Bifidobacterium bifidum-ATCC15696) on the bacterial and metabolic function of the preterm gut while on the neonatal intensive care unit (NICU) and following discharge. \ud \ud Patients - Stool samples (n = 88) were collected before, during, and after probiotic intake from 7 patients, along with time-matched controls from 3 patients. Samples were also collected following discharge home from the NICU. \ud \ud Methods - Samples underwent bacterial profiling analysis by 16S rRNA gene sequencing and quantitative PCR (qPCR), as well as metabolomics profiling using liquid chromatography mass spectrometry (LCMS). \ud \ud Results - Bacterial profiling showed greater Bifidobacterium (15.1%) and Lactobacillus (4.2%) during supplementation compared to the control group (4.0% and 0%, respectively). While Lactobacillus reduced after probiotic was stopped, Bifidobacterium remained high following discharge, suggestive of successful colonisation. qPCR analysis showed a significant increase (P = <0.01) of B. bifidum in infants who received probiotic treatment compared to controls, but no significant increase was observed for L. acidophilus (P = 0.153). Metabolite profiling showed clustering based on receiving probiotic or matched controls, with distinct metabolites associated with probiotic administration.\ud \ud Conclusions - Probiotic species successfully colonise the preterm gut, reducing the relative abundance of potentially pathogenic bacteria, and affecting gut functioning. Bifidobacterium (but not Lactobacillus) colonized the gut long-term; suggesting the possibility that therapeutically administered probiotics may continue to exert important functional effects on gut microbial communities in early infancy.
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