Results 71 to 80 of about 321,536 (302)

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

The classification of substance and behavioural addictions: A preliminary investigation

open access: yes, 2012
The term addiction has been used to refer to impaired control over substance use for several centuries however recently there has been a shift toward using this term in the context of non-substance use disorders, such as pathological gambling.
Starkey, Nicola J.   +1 more
core  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +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

The association betweeen psychopathology and substance use in young people

open access: yes, 2011
Includes abstract.Includes bibliographical references.The co-occurrence of problematic substance use and non-substance use psychopathology is very common in psychiatry, and is generally referred to as comorbidity.
Saban, Amina
core  

Caffeine consumption of medical students in Korea: amount and symptoms based on a 2023 survey [PDF]

open access: yesKorean Journal of Medical Education
Purpose To investigate the form and level of daily caffeine intake recommended above 400 mg in medical students expected to consume caffeinated beverages to enhance their performance.
Seong Woo Choi   +6 more
doaj   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

Prevalence and risk factors for drug use and dependence in university students from Medellín, Colombia, 2009

open access: yesRevista Facultad Nacional de Salud Pública, 2012
Objective: to determine the prevalence and risk factors for druguse and dependence among students at a university in Medellín,Colombia. Methodology: an analytical study in which 1264students were surveyed using a random sampling, stratified bythe number ...
Andrés F. Tirado O   +5 more
doaj  

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

Substance abuse and women: a comprehensive qualitative analysis of the literature

open access: yes, 1999
Plan BIn this comprehensive meta-analytic research study, substance abuse as it pertains to women is discussed in detail. A brief history of substance use and women will be presented plus a brief history of pharmacology research and its relevance to ...
Gignac, Susan
core  

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