Results 51 to 60 of about 99,976 (194)
Variable selection for sparse Dirichlet-multinomial regression with an application to microbiome data analysis [PDF]
With the development of next generation sequencing technology, researchers have now been able to study the microbiome composition using direct sequencing, whose output are bacterial taxa counts for each microbiome sample. One goal of microbiome study is to associate the microbiome composition with environmental covariates.
arxiv +1 more source
Human microbiomes have received increasing attention over the last 10 years, leading to a pervasiveness of hypotheses relating dysbiosis to health and disease. The respiratory tract has received much less attention in this respect than that of, for example, the human gut. Nevertheless, progress has been made in elucidating the immunological, ecological
Cleary, David W., Clarke, Stuart C.
openaire +5 more sources
The first detailed temporal study of the human microbiome shows that individual body habitats exhibit surprising variation over time yet maintain distinguishable community structures.
openaire +3 more sources
The sponge microbiome project [PDF]
Marine sponges (phylum Porifera) are a diverse, phylogenetically deep-branching clade known for forming intimate partnerships with complex communities of microorganisms. To date, 16S rRNA gene sequencing studies have largely utilised different extraction and amplification methodologies to target the microbial communities of a limited number of sponge ...
Maria V. Marra+40 more
openaire +8 more sources
Perinatal factors affect the gut microbiota up to four years after birth
Early life microbiome is affected by factors such as mode of delivery, gestational age at birth and feeding regime. Here, the authors show that gestational age at birth still imprints on the microbiome at four years of age, suggesting a link between ...
Fiona Fouhy+9 more
doaj +1 more source
Rewiring of host cytokine networks is a key feature of inflammatory bowel diseases (IBD) such as Crohn’s disease (CD). Th1-type cytokines—IFN-γ and TNF-α—occupy critical nodes within these networks and both are associated with disruption of gut ...
Jerzy A. Woznicki+18 more
doaj +1 more source
LinDA: linear models for differential abundance analysis of microbiome compositional data [PDF]
Differential abundance analysis is at the core of statistical analysis of microbiome data. The compositional nature of microbiome sequencing data makes false positive control challenging. Here, we show that the compositional effects can be addressed by a simple, yet highly flexible and scalable, approach.
arxiv
The human microbiome (glossary in Appendix 1, available at [www.cmaj.ca/lookup/suppl/doi:10.1503/cmaj.141072/-/DC1][1]) comprises hundreds of previously known and newly discovered microbial species living in distinct communities adapted to specific anatomic sites.[1][2] In healthy adults ...
Bryan Coburn, David S. Guttman
openaire +3 more sources
Background Typically, animal models studying gastrointestinal microbiotas compromised in early life have employed either germ-free animals or mice treated with a cocktail of antibiotics. Such studies intend to mimic scenarios of infants born by caesarean
Emily C. Hoedt+9 more
doaj +1 more source
Rebooting the microbiome [PDF]
Using a murine Salmonella model of colitis, we recently reported that mice receiving a community of defined gut microbiota (MET-1) lost less weight, had reduced systemic inflammation and splenic S. typhimurium infection, and decreased neutrophil infiltration in the cecum, compared to vehicle controls.
Elaine O. Petrof+8 more
openaire +3 more sources