March 14, 2019

Today’s digest covers interesting reviews on microbiota for immunotherapies, non-digestible carbohydrates for infant microbiota and contribution of marine microbiota in reactive oxygen species; research articles on how gluten sensitivity is affected by duodenal microbiota and how ginger intake affects mouse microbiota.

General microbiome

Review: Mining the microbiota for microbial and metabolite-based immunotherapies – Ashwin N. Skelly – Nature Reviews Immunology

Pregnancy and early life microbiome

Relationship between vitamin D status and the vaginal microbiome during pregnancy – Kimberly K. Jefferson – Journal of Perinatology

Review: Shaping the Infant Microbiome With Non-Digestible Carbohydrates – Stella A. Verkhnyatskaya – Frontiers in Microbiology

Variations in early gut microbiome are associated with childhood eczema – Yu Zhang – FEMS Microbiology Letters

Human gut microbiome

Gut microbiota in HIV–pneumonia patients is related to peripheral CD4 counts, lung microbiota, and in vitro macrophage dysfunction – Meera K. Shenoy – Microbiome

Effects of bowel preparation on the human gut microbiome and metabolome – Naoyoshi Nagata – Scientific Reports

Human colon mucosal biofilms from healthy or colon cancer hosts are carcinogenic – Sarah Tomkovich – The Journal of Clinical Investigation

Animal experiments

Host NLRP6 exacerbates graft-versus-host disease independent of gut microbial composition – Tomomi Toubai – Nature Microbiology

Duodenal bacterial proteolytic activity determines sensitivity to dietary antigen through protease-activated receptor-2 – Alberto Caminero – Nature Communications

The dynamics of the antibiotic resistome in the feces of freshly weaned pigs following therapeutic administration of oxytetracycline – Mahdi Ghanbari – Scientific Reports

Beneficial effects of ginger on prevention of obesity through modulation of gut microbiota in mice – Jing Wang – European Journal of Nutrition

Six‐Week High‐Fat Diet Alters the Gut Microbiome and Promotes Cecal Inflammation, Endotoxin Production, and Simple Steatosis without Obesity in Male Rats – Melisa Crawford – Lipids

Gut microbiome structure and adrenocortical activity in dogs with aggressive and phobic behavioral disorders – Elisabetta Mondo – BioRxiv

The gut microbiota regulates mouse biliary regenerative responses – Wenli Liu – BioRxiv

Plant, root, soil microbiome

Consistent bacterial selection by date palm root system across heterogeneous desert oasis agroecosystems – Maria J. Mosqueira – Scientific Reports

Bacterial fermentation and respiration processes are uncoupled in anoxic permeable sediments – Adam J. Kessler – Nature Microbiology

Effects of graphene oxide and graphite on soil bacterial and fungal diversity – Christian Forstner – BioRxiv

Water microbiome and extremophiles

Review: The microbial contribution to reactive oxygen species dynamics in marine ecosystems – Erik R. Zinser – Environmental Microbiology Reports

Non-microbiology picks

Nano-bot can probe inside human cells – Science Daily

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February 27, 2019

Today’s short digest covers articles on bacterial interaction with intestinal cells, semen microbiome and how microbiota affects insulin reactive immune cells.

General microbiome

The founder hypothesis: A basis for microbiota resistance, diversity in taxa carriage, and colonization resistance against pathogens – Yael Litvak -Plos Pathogens

Review : Impact of the gut microbiome on the genome and epigenome of colon epithelial cells: contributions to colorectal cancer development – Jawara Allen – Genome Medicine

Paneth cell granule dynamics on secretory responses to bacterial stimuli in enteroids – Yuki Yokoi – Scientific Reports

Human gut microbiome

Altered immunity and microbial dysbiosis in aged individuals with long-term controlled HIV infection – Nicholas S. Rhoades – Frontiers in Immunology

Bacterial viability in faecal transplants: Which bacteria survive? – Lito E. Papanicolas – EbioMedicine

Semen Microbiome Biogeography: An Analysis Based on a Chinese Population Study – Zhanshan Ma – Frontiers in Microbiology

Animal experiments

The effects of unfermented and fermented cow and sheep milk on the gut microbiota – Elizabeth Rettedal – Frontiers in Microbiology

Altered Gut Microbiota Activate and Expand Insulin B15-23-Reactive CD8+ T-Cells – James A. Pearson – Diabetes

Lactobacillus plantarum PFM 105 Promotes Intestinal Development Through Modulation of Gut Microbiota in Weaning Piglets – Tianwei Wang – Frontiers in Microbiology

Water microbiome and extremophiles

Microbial residence time is a controlling parameter of the taxonomic composition and functional profile of microbial communities – Cresten Mansfeldt – ISME Journal

Microbial community structure and functionality in the deep sea floor: evaluating the causes of spatial heterogeneity in a submarine canyon system (NW Mediterranean, Spain) – Sara Román – Frontiers in Marine Science

Non-microbiology picks

Dual AAV-mediated gene therapy restores hearing in a DFNB9 mouse model – Omar Akil – PNAS

 

January 31, 2019

Today’s digest covers articles describing sphingolipids in host-microbiome interaction, unique microbiome and metabolome of Indian population, selection and stabilization of soil microbiome and effect of probiotics on early sepsis in patients and immune response in childrenEnjoy reading!

General microbiome

Metabolic Modeling of Human Gut Microbiota on a Genome Scale: An Overview – Partho Sen – Metabolites

Altered composition and function of intestinal microbiota in autism spectrum disorders: a systematic review – Feitong Liu – Translational Psychiatry

Sphingolipids in host–microbial interactions – Stacey L. Heaver – Current Opinion in Microbiology

Pregnancy and early life

Mixed Viral-Bacterial Infections and Their Effects on Gut Microbiota and Clinical Illnesses in Children – Shilu Mathew – Scientific Reports

Pathways linking caesarean delivery to early health in a dual burden context: Immune development and the gut microbiome in infants and children from Galápagos, Ecuador – Amanda L. Thompson – American Journal of Human Biology

Human gut microbiome

The vagino-cervical microbiome as a woman’s life history – Zhuye Jie – BioRxiv

Dynamics of Human Gut Microbiota and Short-Chain Fatty Acids in Response to Dietary Interventions with Three Fermentable Fibers – Nielson T. Baxter – mBio

The unique composition of Indian gut microbiome, gene catalogue and associated faecal metabolome deciphered using multi-omics approaches – D.B. Dhakan – Gigascience

Animal experiments

Oral neonatal antibiotic treatment perturbs gut microbiota and aggravates central nervous system autoimmunity in Dark Agouti rats – Suzana Stanisavljević – Scientific Reports

Intestinal epithelial N-acylphosphatidylethanolamine phospholipase D links dietary fat to metabolic adaptations in obesity and steatosis – Amandine Everard – Nature Communications

Mutual interplay between IL-17–producing γδT cells and microbiota orchestrates oral mucosal homeostasis – Anneke Wilharm – PNAS

Plant, root and soil microbiome

Selection, succession and stabilization of soil microbial consortia – Elias K. Zegeye – BioRxiv

Comparison of the bacterial and methanotrophic diversities between an Italian paddy field and its neighboring meadow – Mohammad Ghashghavi – BioRxiv

Quality of Irrigation Water Affects Soil Functionality and Bacterial Community Stability in Response to Heat Disturbance – Sammy Frenk – Applied and Environmental Microbiology

Water and extremophiles microbiome

Archaea dominate the microbial community in an ecosystem with low-to-moderate temperature and extreme acidity – Aleksei A. Korzhenkov – Microbiome

Antibiotic disturbance affects aquatic microbial community composition and foodweb interactions but not community resilience – Ester M. Eckert – Molecular Ecology

 Phages and viruses

Megaphages infect Prevotella and variants are widespread in gut microbiomes – Audra E. Devoto – Nature Microbiology

Probiotics / prebiotics

Dysbiosis in early sepsis can be modulated by a multispecies probiotic: a randomised controlled pilot trial – V. Stadlbauer – Beneficial Microbes

Lactobacillus plantarum IS-10506 supplementation increases faecal sIgA and immune response in children younger than two years – P.D. Kusumo – Beneficial Microbes

Supplementation with Lactobacillus kefiranofaciens ZW3 from Tibetan Kefir improves depression-like behavior in stressed mice by modulating the gut microbiota – Ye Sun – Food and Function

Non-microbiology picks

Identification of Enteroendocrine Regulators by Real-Time Single-Cell Differentiation Mapping – Helmuth Gehart – Cell

January 24, 2019

Today’s digest covers interesting reviews on microbiome and microbial metabolites, and research articles showing bacteria in meconium, how host and microbial factors affect host physiology and mechanistic insight into role of microbiota in alleviation of intestinal inflammation.

General microbiome

Review: Role of the microbiome in human development – Maria Gloria Dominguez-Bello – Gut

Review: The role of the intestinal microbiota in uremic solute accumulation: a focus on sulfur compounds – Alessandra F. Perna – Journal of Nephrology

Review: Gut microbial metabolites in obesity, NAFLD and T2DM – Emanuel E. Canfora – Nature Reviews Endocrinology

Pregnancy and early life

Characterisation of the bacterial microbiome in first‐pass meconium using propidium monoazide (PMA) to exclude non‐viable bacterial DNA – Lisa F. Stinson – Letters in Applied Microbiology

Perinatal antibiotics alter preterm infant EEG and neurobehavior in the Family Nurture Intervention trial – Morgan R. Firestein – Developmental Psychobiology

Altered gut microbiota and short chain fatty acids in Chinese children with autism spectrum disorder – Simeng Liu – Scientific Reports

Human gut microbiome

Gut microbiota density influences host physiology and is shaped by host and microbial factors – Eduardo J. Contijoch – Elife

The Crohn’s disease polymorphism, ATG16L1 T300A, alters the gut microbiota and enhances the local Th1/Th17 response – Sydney Lavoie – Elife

Alterations in the intestinal microbiota of patients with severe and active Graves’ orbitopathy: a cross-sectional study – T. T. Shi – Journal of Endocrinological Investigation

Fecal microbiota transplantation for treatment of recurrent C. difficile infection: An updated randomized controlled trial meta-analysis – Wenjia Hui – PlosOne

Evolutionary dynamics of bacteria in the gut microbiome within and across hosts – Nandita R. Garud – PlosBiology

MicroRNA-Mediated Tumor–Microbiota Metabolic Interactions in Colorectal Cancer – Ce Yuan – DNA and Cell Biology

Modulation of the Gut Microbiota by Resistant Starch as a Treatment of Chronic Kidney Diseases: Evidence of Efficacy and Mechanistic Insights – Matthew Snelson – Advances in Nutrition

Animal experiments

Microbiota fermentation-NLRP3 axis shapes the impact of dietary fibres on intestinal inflammation Vishal Singh – Gut

A high linoleic acid diet exacerbates metabolic responses and gut microbiota dysbiosis in obese rats with diabetes mellitus – Hsiu-Chuan Lee – Food and Function

Gut microbiota profiling with differential tolerance against the reduced dietary fibre level in rabbit – Shi-Yi Chen – Scientific Reports

Novel strains of Bacteroides fragilis and Bacteroides ovatus alleviate the LPS-induced inflammation in mice – Huizi Tan – Applied Microbiology and Biotechnology

Water and extremophile microbiome

Consistency in microbiomes in cultures of Alexandrium species isolated from brackish and marine waters – Eva Sörenson – Environmental Microbiology Reports

Probiotics / prebiotics

Review: Beneficial Effects of Probiotic Consumption on the Immune System – C. Maldonado Galdeano – Annals of Nutrition and Metabolism

Microbes on the market

Ferring, Rebiotix and Karolinska Institutet Extend Collaboration to Research Next Generation of Microbiome Treatments – Microbiome Times

Non-microbiology picks

Those with inadequate access to food likely to suffer from obesity – Science Daily

December 26, 2018

Holidays, Happiness and some updates on the microbiome!
Today’s short digest covers functions of different Lactobacillus strains; how weaning stress affects the gut microbiome and association of bacterial metabolite TMAO with Alzheimer’s disease.

General microbiome

Review: Antibiotics and the nervous system: More than just the microbes? – Kevin Champagne-Jorgensen – Brain, Behavior, and Immunity

Human gut microbiome

The gut microbiota-derived metabolite trimethylamine N-oxide is elevated in Alzheimer’s disease – Nicholas M. Vogt – Alzheimer’s Research & Therapy

A novel probiotic, Lactobacillus johnsonii 456, resists acid and can persist in the human gut beyond the initial ingestion period – Michael J. Davoren – Gut Microbes

Metabolomics and 16S rRNA sequencing of human colorectal cancers and adjacent mucosa – Mun Fai Loke – PlosOne

Human oral/respiratory microbiome

The Salivary Microbiome: Analysis of by Pyrosequencing and the Relationship with Helicobacter pylori Infection – Yingjie Ji – bioRxiv

Differences in the lower airway microbiota of infants with and without cystic fibrosis – Katherine B. Frayman – Journal of Cystic Fibrosis

Animal experiments

A Diet-Sensitive Commensal Lactobacillus Strain Mediates TLR7-Dependent Systemic Autoimmunity – Daniel F. Zegarra-Ruiz – Cell Host and Microbe

The gut microbiome is required for full protection against acute arsenic toxicity in mouse models – Michael Coryell – Nature Communications

Weaning Stress Perturbs Gut Microbiome and Its Metabolic Profile in Piglets – Yuan Li – Scientific Reports

Plant root soil microbiome

The effect of rhizosphere microbes outweighs host plant genetics in reducing insect herbivory – Charley J. Hubbard – Molecular Ecology

Enrichment of Verrucomicrobia, Actinobacteria and Burkholderiales drives selection of bacterial community from soil by maize roots in a traditional milpa agroecosystem – Eneas Aguirre-von-Wobeser – PlosOne

Non-microbiology picks

Friend and foe: β-cell Ca2+ signaling and the development of diabetes – Paul V. Sabatini – Molecular Metabolism

December 20, 2018

In the wait of Christmas weekend and holidays, some quick reading for updates in microbiome field. Today’s digest include articles on improving metagenomic data analysis and integrating different -omics datasets; review article on potential of microbiome to address antimicrobial resistance and meta-analysis on benefits of probiotic supplements in kidney disease.

General microbiome

Microbiome as a tool and a target in the effort to address antimicrobial resistance – David A. Relman – PNAS

Gut microbiota and health: connecting actors across the metabolic system – F. Fava – Proceedings of the Nutrition Society

Dietary sugar silences a colonization factor in a mammalian gut symbiont – Guy E. Townsend II – PNAS

Human gut microbiome

Genomic variation and strain-specific functional adaptation in the human gut microbiome during early life – Tommi Vatanen – Nature Microbiology

Phylogenetic barriers to horizontal transfer of antimicrobial peptide resistance genes in the human gut microbiota – Bálint Kintses – Nature Microbiology

Fecal Microbiota Transplantation for the Critically Ill Patient – Berkeley N. Limketkai – Nutrition in Clinical Practice

Effects of probiotic supplements on the progression of chronic kidney disease: a meta‐analysis – Sibei Tao – Nephrology

Signatures within the esophageal microbiome are associated with host genetics, age, and disease – Nandan P. Deshpande – Microbiome

Human oral microbiome

Oral microbiomes in children with asthma and dental caries – Sergey V. Cherkasov – Oral Diseases

Animal experiments

Microbial fermentation of flaxseed fibers modulates the transcriptome of GPR41-expressing enteroendocrine cells and protects mice against diet-induced obesity – Tulika Arora – Americal Journal of Physiology Endocrinology and Metabolism

Transcriptome-wide reprogramming of N6-methyladenosine modification by the mouse microbiome – Xiaoyun Wang – Cell Research

Antidepressant treatment modulates the gut microbiome and metabolome during pregnancy and lactation in rats with a depressive-like phenotype – Anouschka S. Ramsteijn – BioRxiv

Association of gut microbiota composition and function with a senescence-accelerated mouse model of Alzheimer’s Disease using 16S rRNA gene and metagenomic sequencing analysis – Weijun Peng – Aging

Prebiotics and synbiotics – in ovo delivery for improved lifespan condition in chicken – M. Siwek – BMC Veterinary Research

The response of colonic mucosa-associated microbiota composition, mucosal immune homeostasis, and barrier function to early-life galactooligosaccharides intervention in suckling piglets – Jue Wang – Journal of Agricultural and Food Chemistry

Techniques

Microbiome characterization by high-throughput transfer RNA sequencing and modification analysis – Michael H. Schwartz – Nature Communications

Simple statistical identification and removal of contaminant sequences in marker-gene and metagenomics data – Nicole M. Davis – Microbiome

Multiomics modeling of the immunome, transcriptome, microbiome, proteome and metabolome adaptations during human pregnancy – Mohammad Sajjad Ghaemi – Bioinformatics

Introducing THOR, a model microbiome for genetic dissection of community behavior – Gabriel L. Lozano – BioRxiv

Microbes in the news

Prebiotics Benefit the Gut Microbiome of Both Children and Adults – Market watch

Non-microbiology picks

Technologies to address antimicrobial resistance – Stephen J. Baker – PNAS

November 29, 2018

Today’s digest covers updates on human milk oligosaccharides, microbial life in cemetry, intestinal resistome, and benefits of intermittent fasting in human cohort and the gut microbiota in mice.

General microbiome
Next steps in studying the human microbiome and health in prospective studies, Bethesda, MD, May 16–17, 2017 – Rashmi Sinha – Microbiome

Human gut microbiome

Human milk oligosaccharides, milk microbiome and infant gut microbiome modulate neonatal rotavirus infection – Sasirekha Ramani – Nature Communications

Interpersonal Variations in Gut Microbiota Profiles Supersedes the Effects of Differing Fecal Storage Conditions – Caspar Bundgaard-Nielsen – Scientific Reports

In-and-Out Molecular Changes Linked to the Type 2 Diabetes Remission after Bariatric Surgery: An Influence of Gut Microbes on Mitochondria Metabolism – Paulina Samczuk – International Journal of Molecular Sciences

Characterization of fungal dysbiosis in Japanese patients with inflammatory bowel disease – Takayuki Imai – Journal of Gastroenterology

Gut microbiota features of the geographically diverse Indian population – Sudarshan A. Shetty – BioRxiv

Animal experiments

Intermittent administration of a fasting-mimicking diet intervenes in diabetes progression, restores β cells and reconstructs gut microbiota in mice Siying Wei – Nutrition and Metabolism

Skin and gut microbiomes of a wild mammal respond to different environmental cues – Anton Lavrinienko – Microbiome

Mouse intestinal microbiota reduction favors local intestinal immunity triggered by antigens displayed in Bacillus subtilis biofilm – Cédric M. Vogt – Microbial Cell Factories

The murine vaginal microbiota and its perturbation by the human pathogen group B Streptococcus – Alison Vrbanac – BMC Microbiology

Use of next generation sequencing to investigate the microbiota of experimentally induced wounds and the effect of bandaging in horses – Louis J. Kamus – PlosOne

Soil microbiome

Expansive microbial metabolic versatility and biodiversity in dynamic Guaymas Basin hydrothermal sediments – Nina Dombrowski – Nature Communications

Built Environment

Microbial life beyond the grave: 16S rRNA gene-based metagenomic analysis of bacteria diversity and their functional profiles in cemetery environments – Akebe Luther King Abia – Science of the Total Environment

Techniques

Prediction of the intestinal resistome by a three-dimensional structure-based method – Etienne Ruppé – Nature Microbiology

Quantitative PCR provides a simple and accessible method for quantitative microbiome profiling – Ching Jian – BioRxiv

Microbes in the news

Poo found on every McDonald’s touchscreen tested – Metro

Non-microbiology picks

Effects of intermittent and continuous calorie restriction on body weight and metabolism over 50 wk: a randomized controlled trial – Ruth Schübel – The American Journal of Clinical Nutrition