Results 41 to 50 of about 64,239 (251)

The Relationship Between Intestinal Flora and Intestinal Mucosal Immune Senescence

open access: yesShengwu huaxue yu shengwu wuli jinzhan
Aging has been identified as one of the risk factors for chronic disease, and the onset and development of many chronic diseases are closely related to gut immune dysfunction in the elderly.
GUO Wen-Wen   +5 more
doaj   +1 more source

Gut micro flora in genesis of methilthyo metabolites of paracetamol [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2019
Gut micro flora represents a system of extensive metabolic capacity which is quite different when compared to other cells of body and organs. In recent times, there has been an evidence of very important role of gut cysteine conjugate beta ...
Smieško Gordana M.   +3 more
doaj   +1 more source

The Relationship Between Atrial Fibrillation and Intestinal Flora With Its Metabolites

open access: yesFrontiers in Cardiovascular Medicine, 2022
Atrial fibrillation (AF) is characterized by high morbidity and disability rate. The incidence of AF has rapidly increased due to increased aging population, causing a serious burden on society and patients.
Dasheng Lu   +4 more
doaj   +1 more source

Gut commensal flora: tolerance and homeostasis [PDF]

open access: yesF1000 Biology Reports, 2009
Commensal microorganisms are not ignored by the intestinal immune system. Recent evidence shows that commensals actively participate in maintaining intestinal immune homeostasis by interacting with intestinal epithelial cells and delivering tolerogenic signals that are transmitted to the underlying cells of the immune system.
openaire   +2 more sources

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Role of colonic microbiota in the pathogenesis of ulcerative colitis

open access: yesBMC Gastroenterology, 2019
Background Recent studies have found gut microbiota to be closely associated with onset and perpetuation of UC. Currently, studies about gut microbiota have mainly covered samples collected from the intestinal lumen.
Ling-yan Pei   +9 more
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

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