Microbial ecology: The diversity of gut microbiota reduces with aging, but the associated changes may vary across different geographies. In modern diet patterns, several studies have suggested that variations in the gut microbiota due to animal-based diets could be responsible for alteration in bile acid biosynthesis [ 94— 96 ].
Changes occurring in the microbiota during aging can have an impact on host health. The purpose of this review is to highlight the role of the microbiota and microbiome in health and disease with its potential clinical relevance to older adults.
Comparison of compositions and metabolic activities of fecal microbiotas in young adults and in antibiotic-treated and non-antibiotic-treated elderly subjects.
Between Pathogenicity and Commensalism [Internet]. Further, in vitro administration of L. Short-chain fatty acids stimulate leptin production in adipocytes through the G protein-coupled receptor GPR The amount of short chain fatty acids SCFAs is about four times higher in African population with higher abundances of certain bacteria Xylanibacter, Prevotella, Butyrivibrio, and Treponema that are capable of digesting plant polysaccharides to yield SCFAs De Filippo et al.
Bile acid is a host factor that regulates the composition of the cecal microbiota in rats.
The microbiota of individual subjects however exhibit less temporal variability Claesson et al. Through the stoichiometric matrix metabolism is represented in a machine-readable form and different computational analysis can be carried out using the matrix.
Fecal microbiota composition and frailty. A metagenomic analysis in humanized gnotobiotic mice. In a recent study, CASINO was used to elucidate metabolic interactions between the microbiota in the small intestine of mice and different tissues [ ].
Ageing Res. Immunosenescence can therefore cause unfavorable changes in the composition and structure of the gut microbiota in older people.
Lung Bacteria Influence Intestinal Immunity Although the above-mentioned aspects account for the effect of gut microbiota on lung immunity, the reverse has been less explored. The GALT consists of organized lymphoid tissues mesenteric lymph nodes and Peyer patches which work as inductive sites.
Intestinal integrity and Akkermansia muciniphila, a mucin-degrading member of the intestinal microbiota present in infants, adults, and the elderly.
Functional metagenomic profiling of intestinal microbiome in extreme ageing. Bidirectional Gut-Lung axis.
Knowledge, knowledge gaps and the use of high-throughput sequencing to address these gaps. Most metabolic pathways were uniformly distributed across individuals and body habitats, indicating a redundancy in bacterial metabolism.
Both authors approved the final version of the manuscript for submission. A cross-sectional study differences in fecal microbiota in different European study populations in relation to age, gender, and country: Int J Obes [Internet].
Nat Rev Microbiol [Internet]. Gut metagenome in European women with normal, impaired and diabetic glucose control. Anti-inflammatory properties of the short-chain fatty acids acetate and propionate: This article has been cited by other articles in PMC.
Theoretically, the host could also modulate the microbiota so that microbial responses are, in turn, beneficial to itself. Out of the four pathways which can produce butyrate, this butyrogenic pathway from Pyruvate is a marker for gut commensals Anand et al. A recent study also detected differences at the genus level between C.
Recently, correlations between the gut microbiota and aging was investigated in several studies and these show that aging can affect the composition and metabolic functions of gut bacterial species, and further that this alteration can be associated with numerous gut-related disease in the host.
An observational study in African American and Caucasian American volunteers. Since the population of the gut related bacteria is very large, more efforts are required to develop high-quality GEMs in this area.
Gut microbiota composition correlates with diet and health in the elderly. Philos Trans Biol Sci. This indicates the potential of utilizing this pathway and bacteria possessing it in early diagnosis of respiratory diseases.
Comparative studies on mode of delivery have demonstrated that colonization of microbes in the gut differs in vaginal and cesarean delivery, which impacts the development of the immune system in early age of infants [ 52— 54 ].
Interestingly, a unique abundance of genus Prevotella and Xylanibacter was noticed during the consumption of high-fiber containing food.Gut microbiota, Aging, Inflammaging, Neurode-generative diseases. Introduction Human beings are superorganism, consisting in host cells and microbes.
The intestine houses most of these microorganisms that are called “gut microbiota” and include more than kinds of bacteria, for a weight equal to 1 kg1. · Changes occurring in the microbiota during aging can have an impact on host health. van Tongeren et al.
studied the relationship between microbial Cited by: In order to design a healthy diet and novel probiotics/prebiotics, this review includes information about effective approaches that can be employed to acquire better understanding of (i) metabolic capability of microbial species in the gut microbiota and (ii) interactions between diet, microbes and host in lawsonforstatesenate.com by: A fiber rich diet changes not only the intestinal microbiota, but also affects the lung microbiota, indicating influence of nutrition on lung immunity (Trompette et al., ; Halnes et al., ).Cited by: 1.
Aging-associated alterations in composition, diversity and functional features of intestinal microbiota are well-described in the modern lawsonforstatesenate.com by: THE RELATIONSHIP BETWEEN DIET, INTESTINAL MICROBIOTA, IMMUNITY AND HEALTH By: Farah Hillou, MS, RDN Dubai Nutrition Conference, Nov 19th