Results 71 to 80 of about 290,636 (313)

Epigenetics as a mechanism driving polygenic clinical drug resistance [PDF]

open access: yes, 2006
Aberrant methylation of CpG islands located at or near gene promoters is associated with inactivation of gene expression during tumour development.
Glasspool, R.M.   +8 more
core   +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

Chemical, Mechanical and Tribological Effects of Artificially Aging up to 6 Weeks on Virgin and Crosslinked UHMWPE Evaluated for a TKR Design

open access: yesBioengineering
Patients undergo total knee arthroplasty (TKA) at younger ages with the expectation that the devices will perform well over two to three decades. During this time, the ultra-high molecular weight polyethylene (UHMWPE) bearing material properties of the ...
Jens Schwiesau   +6 more
doaj   +1 more source

REST and stress resistance in ageing and Alzheimer’s disease [PDF]

open access: yesNature, 2014
Human neurons are functional over an entire lifetime, yet the mechanisms that preserve function and protect against neurodegeneration during ageing are unknown. Here we show that induction of the repressor element 1-silencing transcription factor (REST; also known as neuron-restrictive silencer factor, NRSF) is a universal feature of normal ageing in ...
Lu, Tao   +12 more
openaire   +4 more sources

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

open access: yesFEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Late-onset hypogonadism (LOH) : an emerging pathophysiological entity requiring the physician's attention [PDF]

open access: yes, 2006
Late-onset hypogonadism (LOH) is an emerging pathophysiological entity. Not everybody is familiar with LOH or even recognizes its existence. Since the 19th century women's life expectancy has become progressively greater than that of men and therefore ...
Nieschlag, Eberhard
core  

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

Effect of Creep Aging Process on Microstructures and Properties of the Retrogressed Al-Zn-Mg-Cu Alloy

open access: yesMetals, 2016
The creep aging behaviors of retrogressed Al-Zn-Mg-Cu alloy were studied by uniaxial tensile creep tests at 140 °C. The effects of creep aging time and applied stress on microstructures and properties of the studied alloy were investigated by using ...
Yongqian Xu, Lihua Zhan
doaj   +1 more source

Antibiotic resistance and the golden age of microbiology [PDF]

open access: yesUpsala Journal of Medical Sciences, 2014
The ability of micro-organisms to develop resistance to the action of inhibitors has been known since the discovery of antimicrobial agents. The first reports were concerned with agents such as Salvarsan and Prontosil in the early 1900s; the phenomenon of ‘fastness’ to these agents was observed frequently during treatment with the drugs.
openaire   +2 more sources

The value of antimicrobial peptides in the age of resistance

open access: yesThe Lancet Infectious Diseases, 2020
Accelerating growth and global expansion of antimicrobial resistance has deepened the need for discovery of novel antimicrobial agents. Antimicrobial peptides have clear advantages over conventional antibiotics which include slower emergence of resistance, broad-spectrum antibiofilm activity, and the ability to favourably modulate the host immune ...
Magana, M.   +18 more
openaire   +3 more sources

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