Results 51 to 60 of about 2,520,525 (306)

Sarcopenia screening in elderly with Alzheimer’s disease: performances of the SARC-F-3 and MSRA-5 questionnaires

open access: yesBMC Geriatrics, 2022
Background The 3-item SARC-F (SARC-F-3) and the 5-item Mini Sarcopenia Risk Assessment (MSRA-5) questionnaires have been recently proposed to screen elderly people regarding the risk of sarcopenia. However, no studies have investigated their performances
Giulia Bramato   +6 more
doaj   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

open access: yesFEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa   +3 more
wiley   +1 more source

Rat heart cannot synthesize docosahexaenoic acid from circulating α-linolenic acid because it lacks elongase-2

open access: yesJournal of Lipid Research, 2008
The extent to which the heart can convert α-linolenic acid (α-LNA, 18:3n-3) to longer chain n-3 PUFAs is not known. Conversion rates can be measured in vivo using radiolabeled α-LNA and a kinetic fatty acid model.
Miki Igarashi   +4 more
doaj   +1 more source

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

Circadian rhythms in stem cells and their therapeutic potential

open access: yesStem Cell Research & Therapy
Circadian rhythms are present in almost all cells, but their existence in stem cells has remains not well established. Circadian clock appears to be closely associated with differentiated mature cells and rarely detected in immature embryonic stem cells.
Napasiri Putthanbut   +3 more
doaj   +1 more source

Accumulation of caspase cleaved amyloid precursor protein represents an early neurodegenerative event in aging and in Alzheimer's disease

open access: yesNeurobiology of Disease, 2003
The activation of caspase-3 and possibly other caspases during apoptosis may lead to the cleavage of the amyloid precursor protein (APP) and subsequent accumulation of APP cleavage products (cAPP).
Ming Zhao   +3 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Dietary n-3 PUFA deprivation for 15 weeks upregulates elongase and desaturase expression in rat liver but not brain

open access: yesJournal of Lipid Research, 2007
Fifteen weeks of dietary n-3 PUFA deprivation increases coefficients of conversion of circulating α-linolenic acid (α-LNA; 18:3n-3) to docosahexaenoic acid (DHA; 22:6n-3) in rat liver but not brain.
Miki Igarashi   +4 more
doaj   +1 more source

Aging is a process that should be celebrated every day

open access: yes, 2012
Jan. 12, 2012-; "... A blog-like publication that connects interest Ohioans to news and information about issues affecting older Ohioans and the people who care for and serve them."; Not published Feb.-Nov. 2013.; Issue for Jan.
Matura, Pamela K.   +1 more
core  

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

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