Serotonin as a link between the gut-brain-microbiome axis in autism spectrum disorders SUMMARY: This paper reviews some of the studies that looked at the connection between serotonin production, microbiome, and autism. The first two sections give some basic information on serotonin, its reuptake transporter, and the gut-brain connection. Sections three and four talk about changes… Continue reading Serotonin as a link between the gut-brain-microbiome axis in autism spectrum disorders
Bacterial Multidrug Efflux Pumps: Much More Than Antibiotic Resistance Determinants SUMMARY: Efflux pumps are found in all organisms; they play an important role in helping the cells pump out toxins, heavy metals, and in the case of antibiotic resistant bacteria, antibiotics! This article talks about how efflux pumps work, other ways that they are used… Continue reading All About Efflux Pumps
Environmental filtering of bacterial functional diversity along an aridity gradient SUMMARY: Genes of soil bacteria sampled in the Tibetan Plateau showed that as the environment got drier, the less diverse the genes were. Researchers wanted to compare bacterial gene diversity with the already-known diversity of genes in large animals in various environments. There were less… Continue reading How Bacteria Genes Change with Dryness
Vibrio Cholerae genomic diversity within and between patients SUMMARY: Researchers looked at 122 samples of cholera in 8 different cholera patients; five were from Bangladesh and three were from Haiti. They found that the cholera bacteria genomes were different in water versus the human gut; one particularly interesting mutation was the bacteria stopped forming biofilm… Continue reading Cholera Biodiversity in Humans
Accelerated evolution of 3'avian FOXE1 genes, and thyroid and feather specific expression of chicken FoxE1 SUMMARY: The FOXE1 gene codes for a transcription factor (a protein that controls transcription, and thus protein production, in a cell). This transcription factor has been found in a lot of different types of animals and is responsible for a… Continue reading Naked Chickens?