Results 71 to 80 of about 24,988 (216)

NAD+‒circadian rhythm coupling in dementia

open access: yesAlzheimer's &Dementia, Volume 22, Issue 5, May 2026.
Abstract The circadian rhythm system and sleep coordinate whole‐body functions across the 24‐h cycle, yet these rhythms progressively deteriorate with neurodegenerative diseases, including dementia. Growing evidence indicates that nicotinamide adenine dinucleotide (NAD+) interacts with the circadian system through multiple molecular pathways and that ...
Shi‐qi Zhang   +7 more
wiley   +1 more source

Inhibited effects of veliparib combined doxorubicin for BEL-7404 proliferation of human liver cancer cell line [PDF]

open access: yes, 2003
ObjectiveTo explore inhibition effects of veliparib as PARP inhibitor combined doxorubicin for BEL-7404 proliferation of human liver cancer cell line.MethodsBEL-7404 was taken as the object of study and conventional culture was performed.
Yu   +17 more
core   +1 more source

Prostate cancer and PARP inhibitors: progress and challenges

open access: yesJournal of Hematology & Oncology, 2021
Despite survival improvements achieved over the last two decades, prostate cancer remains lethal at the metastatic castration-resistant stage (mCRPC) and new therapeutic approaches are needed.
Diego Teyssonneau   +8 more
doaj   +1 more source

Specific inhibition of the differentiation of Trypanosoma cruzi [PDF]

open access: yes, 2004
The morphological transformation of Trypanosoma cruzi amastigotes was studied in both mammalian cells and an extracellular differentiation system. Inhibitors of ADP-ribosyl transferase were found to block differentiation in both cases, without affecting ...
Williams, GT
core   +1 more source

Exploring alternatives to tumor tissue for BRCA1/2 next‐generation sequencing testing in high‐grade serous ovarian cancer: A 34‐case series of malignant ascites

open access: yesCancer Cytopathology, Volume 134, Issue 5, May 2026.
Abstract Background BRCA1/2 testing is currently recommended at diagnosis for high‐grade serous ovarian carcinoma (HGSOC) because of its impact on patients' survival when treated with poly(adenosine diphosphate ribose) polymerase inhibitors. Standard clinical practice involves analyzing BRCA1/2 genes in formalin‐fixed, paraffin‐embedded (FFPE ...
Chiara Pighi   +9 more
wiley   +1 more source

Identification of a dihydropyridine scaffold that blocks ryanodine receptors

open access: yesiScience, 2022
Summary: Ryanodine receptors (RyRs) are large, intracellular ion channels that control Ca2+ release from the sarco/endoplasmic reticulum. Dysregulation of RyRs in skeletal muscle, heart, and brain has been implicated in various muscle pathologies ...
Gihan S. Gunaratne   +10 more
doaj   +1 more source

Demonstration of high molecular weight poly (adenosine diphosphate ribose)

open access: yesNucleic Acids Research, 1978
An electrophoretic system was established that resolves poly(adenosine diphosphate ribose), enzymatically synthesized polymer from NAD+, by size difference of one residue on polyacrylamide gel. The existence of a polymer of at least 65 residues was demonstrated by band counting in this system. The polymer showed a heterogeneous size distribution on the
M, Tanaka   +5 more
openaire   +3 more sources

Dietary Ergothioneine as a Novel Anti‐Aging Nutraceutical: Mechanisms, Bioavailability, and Future Perspectives

open access: yesFood Frontiers, Volume 7, Issue 3, May 2026.
ABSTRACT Ergothioneine (EGT), a natural thiol derivative, has gained attention as a geroprotective nutraceutical. Preclinical research shows EGT scavenges free radicals, maintains mitochondrial integrity, slows telomere erosion, and regulates proteostasis via autophagy and senescent cell clearance.
Tian‐Tian Tian   +3 more
wiley   +1 more source

Failure to detect "cap" structures in mitochondrial DNA-coded poly(A)-containing RNA from HeLa cells [PDF]

open access: yes, 1978
The structure of the 5'-termini has been investigated in mitochondrial DNA- coded poly(A)-containing RNA from HeLa cells. For this purpose, mitochondrial RNA isolated from cells labeled for 3 hours with [32P]orthophosphate in the presence of 20 µg/ml ...
Amalric, François   +3 more
core   +1 more source

Untargeted Metabolomic and Lipidomic Profiles of Gingival Crevicular Fluid in the Context of Periodontitis

open access: yesJournal of Clinical Periodontology, Volume 53, Issue 5, Page 774-783, May 2026.
ABSTRACT Aim(s) This cross‐sectional clinical study aimed to explore the untargeted metabolomic and lipidomic profiles in gingival crevicular fluid (GCF) obtained from healthy individuals and patients with periodontitis. Materials and Methods GCF was collected from 17 periodontally healthy and 19 periodontitis patients.
Caroline H. Henderzahs   +6 more
wiley   +1 more source

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