Results 61 to 70 of about 1,121,510 (309)

MutY-Homolog (MYH) inhibition reduces pancreatic cancer cell growth and increases chemosensitivity [PDF]

open access: yes, 2016
Patients with pancreatic ductal adenocarcinoma (PC) have a poor prognosis due to metastases and chemoresistance. PC is characterized by extensive fibrosis, which creates a hypoxic microenvironment, and leads to increased chemoresistance and intracellular
Biankin, Andrew   +8 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Proteostasis collapse is a driver of cell aging and death. [PDF]

open access: yes, 2019
What molecular processes drive cell aging and death? Here, we model how proteostasis-i.e., the folding, chaperoning, and maintenance of protein function-collapses with age from slowed translation and cumulative oxidative damage.
de Graff, Adam MR   +2 more
core  

An integrative assessment to determine the genotoxic hazard of estuarine sediments: combining cell and whole-organism responses [PDF]

open access: yes, 2014
The application of the Comet assay in environmental monitoring remains challenging in face of the complexity of environmental stressors, e.g., when dealing with estuarine sediments, that hampers the drawing of cause-effect relationships.
Caeiro, Sandra   +8 more
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

DNA damage in homocystinuria: 8-oxo‑,8‑dihydro‑2’-deoxyguanosine levels in cystathionine-β-synthase deficient patients and the in vitro protective effect of N-acetyl‑L‑cysteine

open access: yesClinical and Biomedical Research, 2018
Introduction: Homocysteine (Hcy) tissue accumulation occurs in a metabolic disease characterized biochemically by cystathionine β-synthase (CBS) deficiency and clinically by mental retardation, vascular problems, and skeletal abnormalities.
Camila Simioni Vanzin   +13 more
doaj   +2 more sources

Peroxiredoxin 1 Protects Telomeres from Oxidative Damage and Preserves Telomeric DNA for Extension by Telomerase

open access: yesCell Reports, 2016
Oxidative damage of telomeres can promote cancer, cardiac failure, and muscular dystrophy. Specific mechanisms protecting telomeres from oxidative damage have not been described.
Eric Aeby   +4 more
doaj   +1 more source

Is the Oxidative DNA Damage Level of Human Lens Epithelial Cells Correlated with the Total Antioxidant Capacity (TAC) in Aqueous Extract of HLECs in Senile Cataract Patients?

open access: yesSVU - International Journal of Medical Sciences, 2023
Background: Various experimental evidence suggests that in cataract pathogenesis oxidative stress plays an important role in causing DNA damage, but there is still a lack of data on in vivo assessment of DNA damage and the role of antioxidants ...
Kranti S. Sorte Gawali   +2 more
doaj   +1 more source

Olive polyphenol effects in a mouse model of chronic ethanol addiction [PDF]

open access: yes, 2017
Objectives Alcohol addiction elicits oxidative imbalance and it is well known that polyphenols possess antioxidant properties. We investigated whether or not polyphenols could confer a protective potential against alcohol-induced oxidative stress ...
Bello, Cristiano   +7 more
core   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

open access: yesFEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas   +3 more
wiley   +1 more source

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