Aging represents the gradual accumulation of alterations within an organism over time. The physical and chemical characteristics of our cells gradually change as we age, making it more difficult for our tissues and organs to self-regulate, regenerate, and maintain their structural and functional integrity. AMP- activated protein kinase (AMPK), a well-known sensor of cellular energy status acts as a central regulator of an integrated signalling network that control homeostasis, metabolism, stress resistance, cell survival and autophagy.
View Article and Find Full Text PDFAge-related diseases are intricately linked to the molecular processes underlying aging, with the decline of the antiaging protein Klotho being a key factor. Investigating these processes is crucial for developing therapeutic strategies. The age-associated reduction in Klotho expression, coupled with a decline in the endocrine hormone triiodothyronine (T3), prompted a detailed exploration of their potential interplay.
View Article and Find Full Text PDFAlzheimer's disease (AD) is the most prevalent neurodegenerative disease in aged populations. Aberrant amyloid-beta accumulation is a common pathological feature in AD patients. Dysfunction of autophagy and impairment of α7nAChR functioning are associated with enhanced amyloid-beta (Aβ) accumulation in AD patients.
View Article and Find Full Text PDFAims: Age predispose individual to major diseases, and the biological processes contributing to aging are currently under intense investigation. Hence, plant-based natural compounds could be a potential target to counteract aging and age-associated diseases. So, the present study aims to investigate the antiaging properties of a natural compound Baicalein (BAI) on C.
View Article and Find Full Text PDFis an opportunistic pathogen in immunocompromised patients and accounts for mortality worldwide. Quorum sensing (QS) and QS mediated biofilm formation of increase the severity of infection in the host. New and effective therapeutics are in high demand to eliminate infections.
View Article and Find Full Text PDFMicroorganisms live in the human digestive system and the gut microbiome constitutes part of our prime determining component for healthy aging and wellness. Gut microbiota has broad influences on its host, beginning from the digestion of food and nutrients absorption to protective roles against invading pathogens and host immune system regulation. Dysbiosis of the gut microbial composition has been linked to numerous diseases and there is a need to have a better grasp on what makes a 'good' gut microbiome.
View Article and Find Full Text PDFPseudomonas aeruginosa is an opportunistic pathogen emerging as a public health threat owing to their multidrug resistance profiles. The quorum sensing systems of P. aeruginosa play a pivotal role in the regulation of virulence and act as the target for the development of alternative therapeutics.
View Article and Find Full Text PDFAge predisposes individuals to significant diseases, and the biological processes contributing to aging are currently under intense investigation. Klotho is an anti-aging protein with multifaceted roles and is an essential component of the endocrine fibroblast growth factor. In Caenorhabditis elegans (C.
View Article and Find Full Text PDFMicrobiol Res
September 2019
Pseudomonas aeruginosa is one of the most common pathogens associated with nosocomial infections and a great concern to immunocompromised individuals especially in the cases of cystic fibrosis, AIDS and burn wounds. The pathogenicity of P. aeruginosa is largely directed by the quorum sensing (QS) system.
View Article and Find Full Text PDFMicrob Pathog
June 2019
Quorum sensing (QS) is the cell density dependent communication network which coordinates the production of pathogenic determinants in majority of pathogenic bacteria. Pseudomonas aeruginosa causes hospital-acquired infections by virtue of its well-defined QS network. As the QS regulatory network in P.
View Article and Find Full Text PDFObjective: Anti-quorum sensing and anti-biofilm efficacy of Cinnamic acid against Pseudomonas aeruginosa was comparatively assessed with respect to potent quorum sensing inhibitor, Baicalein.
Results: At sub-lethal concentration, Cinnamic acid effectively inhibited both the production of the QS-dependent virulence factors and biofilm formation in P. aeruginosa without affecting the viability of the bacterium.
The production of virulence determinants and biofilm formation in numerous pathogens is regulated by the cell-density-dependent phenomenon, Quorum sensing (QS). The QS system in multidrug resistant opportunistic pathogen, P. aeruginosa constitutes of three main regulatory circuits namely Las, Rhl, and Pqs which are closely linked to its pathogenicity and establishment of chronic infections.
View Article and Find Full Text PDFDietary restriction (DR) without malnutrition is a robust intervention that extends lifespan and slows the onset of nervous system deficit and age-related diseases in diverse organisms. Acetylcholinesterase (AChE), a thoroughly studied enzyme better known for hydrolyzing acetylcholine (ACh) in neuronal tissues, has recently been linked with multiple unrelated biological functions in different non-neuronal tissues. In the present study, the activity and protein expression level of AChE in liver, heart, and kidney of young (1 month), adult (6 month), and aged (18 month) mice were investigated.
View Article and Find Full Text PDFIn the present study, the normal endogenous activity level of acetylcholinesterase (AChE) was investigated in cerebral hemispheres and cerebellum of female mice as a function of age. The effects of 24-h fasting and refeeding, and dietary restriction (DR) on AChE activity and its protein expression patterns were also investigated in young (1-month) and old (18-month) mice. Our results show that the activity (U/mg protein) and level of AChE protein in the cerebral hemispheres of young mice is decreased significantly on 24-h fasting which reverses back on refeeding.
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