Human microbiome digest, July 3

Short chain fatty acids and gut microbiota, microbial eukaryotes in the human gut, Pseudomonas in stool, and a smelly Anaerococcus isolated from arm pits.

Gut microbiome

Fernandes ObeseAdiposity, gut microbiota and faecal short chain fatty acids are linked in adult humans – J Fernandes – Nutrition & Diabetes

“Our objectives were to compare dietary intakes, faecal SCFA concentrations and gut microbial profiles in healthy lean (LN, BMIless than or equal to25) and overweight or obese (OWOB, BMI>25) participants.”

Ellagic Acid Metabolism by Human Gut Microbiota: Consistent Observation of Three Urolithin Phenotypes in Intervention Trials, Independent of Food Source, Age, and Health Status – Francisco A. Tomás-Barberán – Journal of Agricultural and Food Chemistry

“Interestingly, a higher percentage of phenotype B was observed in those volunteers with chronic illness (metabolic syndrome or colorectal cancer) associated with gut microbial imbalance (dysbiosis).”

Screen shot 2014-07-03 at 03.04PM, Jul 03Communities of microbial eukaryotes in the mammalian gut within the context of environmental eukaryotic diversity – Laura Wegener Parfrey – Frontiers in Microbiology

“We curated the SILVA ribosomal database to reflect current knowledge of eukaryotic taxonomy and employ it as a phylogenetic framework to compare eukaryotic diversity across environment. We show that adults from the non-western population harbor a diverse community of protists, and diversity in the human gut is comparable to that in other mammals.”

Screen shot 2014-07-03 at 03.04PM, Jul 03Faecal carriage of Pseudomonas aeruginosa in healthy humans: antimicrobial susceptibility and global genetic lineages – Vanesa Estepa – FEMS Microbiology Ecology

“The aim of this study was to analyse the Pseudomonas aeruginosa faecal carriage rate in 98 healthy humans and to perform the phenotypic and genotypic characterization of recovered isolates. The genetic relatedness among the isolates was analysed by pulsed-field gel electrophoresis and multilocus sequence typing that was compared with worldwide epidemic clones. “

helminth infectHelminth Infections, Type-2 Immune Response, and Metabolic Syndrome – Aprilianto E. Wiria – PLOS Pathogens

“Are Helminth Infections Associated with Metabolic Syndrome?”

Skin microbiome

Screen shot 2014-07-03 at 03.02PM, Jul 03A newly discovered Anaerococcus strain responsible for axillary odor and a new axillary odor inhibitor, pentagalloyl glucose – Takayoshi Fujii – FEMS Microbiology Ecology

“We aimed to investigate anaerobic bacteria that had not been previously studied for axillary odor formation. A new anaerobic Anaerococcus sp. A20, that releases 3-hydroxy-3-metyl-hexanoic acid (HMHA, main component of axillary odor) from its glutamyl conjugate, was discovered from axillary isolates. “

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