Could bacteria in your gut help spur depression? NatureComms
In a pair of new studies, researchers identified 13 groups of bacteria that were related to the odds of adults having depression symptoms. In some cases, the gut bacteria were depleted in people with depression, while in others they were present at relatively high levels.
director of the Oppenheimer Center for Neurobiology of Stress at the University of California, Los Angeles David Geffen School of Medicine.. At the same time, the notion that gut bacteria could affect depression risk is not far-fetched. According to Amin's team, some bacteria in the groups they identified help synthesize certain chemicals that affect the brain—such as butyrate, glutamate and serotonin.
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Timing matters: age-dependent impacts of the social environment and host selection on the avian gut microbiota - MicrobiomeBackground The establishment of the gut microbiota in early life is a critical process that influences the development and fitness of vertebrates. However, the relative influence of transmission from the early social environment and host selection throughout host ontogeny remains understudied, particularly in avian species. We conducted conspecific and heterospecific cross-fostering experiments in zebra finches (Taeniopygia guttata) and Bengalese finches (Lonchura striata domestica) under controlled conditions and repeatedly sampled the faecal microbiota of these birds over the first 3 months of life. We thus documented the development of the gut microbiota and characterised the relative impacts of the early social environment and host selection due to species-specific characteristics and individual genetic backgrounds across ontogeny by using 16S ribosomal RNA gene sequencing. Results The taxonomic composition and community structure of the gut microbiota changed across ontogenetic stages; juvenile zebra finches exhibited higher alpha diversity than adults at the post-breeding stage. Furthermore, in early development, the microbial communities of juveniles raised by conspecific and heterospecific foster parents resembled those of their foster family, emphasising the importance of the social environment. In later stages, the social environment continued to influence the gut microbiota, but host selection increased in importance. Conclusions We provided a baseline description of the developmental succession of gut microbiota in zebra finches and Bengalese finches, which is a necessary first step for understanding the impact of the early gut microbiota on host fitness. Furthermore, for the first time in avian species, we showed that the relative strengths of the two forces that shape the establishment and maintenance of the gut microbiota (i.e. host selection and dispersal from the social environment) change during development, with host selection increasing in import
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Mum's wish to tell her son 'how loved he was' after tragic suicideRyan James Hughes experienced anxiety and depression after suffering a bleed on the brain following an assault
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How two structurally different lemon pectins modulate the gut microbiotaA diet containing fruits and vegetables contains pectins (plant polysaccharides). Pectin cannot be metabolized by mammalian cells in the gastrointestinal tract but is fermented by the gut microbiota in the colon, where short-chain fatty acids (SCFAs) are released. Previous studies have examined pectin's prebiotic properties.
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Boost your gut health with this plant-packed baked eggs recipeStruggling to meet the 30 plants a week gut-health target? This recipe contains seven.
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COVID-19 pandemic caused rapid brain aging in adolescentsCOVID-19 pandemic caused rapid brain aging in adolescents Adolescents Aging Brain Coronavirus Disease COVID Pandemic Neurology BiologicalPsyc1 Stanford UCSF
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Brain injury charity issues urgent plea for help as charity shop donations plummetA national brain injury charity has issued an urgent appeal for donations as its charity shops struggle to fill the shelves. Whitchurch Shropshire
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