Results 81 to 90 of about 45,192 (224)

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, Volume 600, Issue 9, Page 1265-1287, May 2026.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Efficacy and effectiveness of the combination of sulfadoxine/pyrimethamine and a 3-day course of artesunate for the treatment of uncomplicated falciparum malaria in a refugee settlement in Zambia. [PDF]

open access: yes, 2005
In the Maheba Refugee Settlement, in the clinics supported by Medecins Sans Frontieres, all children aged up to 5 years with a confirmed diagnosis of uncomplicated falciparum malaria are treated with the combination of sulfadoxine/pyrimethamine (SP) and ...
Bloland PB   +9 more
core   +2 more sources

Nuclear Mechanotransduction Across the Metastatic Cascade: Decoding Spatiotemporal Heterogeneity in Cancer Dissemination

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
Tumor metastasis results from complex interactions between cancer cells and mechanical microenvironments. We propose a “nucleus‐centered, cross‐stage mechanical signal decoding” model, highlighting how nuclear mechanosensors interpret forces at different stages.
Linqi Song   +4 more
wiley   +1 more source

Inhibition of Dihydrofolate Reductase by Mofebutazon

open access: yesZeitschrift für Naturforschung C, 1993
Abstract Mofebutazon, Dihydrofolate Reductase, Non-Steroidal Antiinflammatory Drugs (NSAIDs) Mofebutazon, in contrast to phenylbutazon, inhibits dihydrofolate reductase in a concentration-dependent manner. An apparent for mofebutazon and dihydrofolate reductase in the presence of NADPH as electron donor and dihydrofolate as electron ...
E, Strehl, I, Schneider, E F, Elstner
openaire   +2 more sources

A Genetic Reporter for Visualizing Nitroreductase Activity Using Magnetic Resonance Imaging

open access: yesChemistry–Methods, Volume 6, Issue 5, May 2026.
We introduce a reporter gene technology to noninvasively visualize bacterial nitroreductase activity. Our method utilizes a magnetic resonance imaging (MRI) reporter based on aquaporin, which is fused to a destabilizing domain, resulting in their degradation (off‐state).
Jinyang Wan   +4 more
wiley   +1 more source

Knockout of dihydrofolate reductase in mice induces hypertension and abdominal aortic aneurysm via mitochondrial dysfunction

open access: yesRedox Biology, 2019
Hypertension and abdominal aortic aneurysm (AAA) are severe cardiovascular diseases with incompletely defined molecular mechanisms. In the current study we generated dihydrofolate reductase (DHFR) knockout mice for the first time to examine its potential
Qiang Li   +5 more
doaj   +1 more source

Transport of proteins into mitochondria [PDF]

open access: yes, 1985
Translocational intermediates of precursor proteins of ATPase F1β subunit and cytochrome c1 across mitochondrial membranes were analyzed using two different approaches, transport at low temperature and transport after binding of precursor proteins to ...
Neupert, Walter, Schleyer, Manfred
core   +1 more source

Cardiovascular Benefits of Salvia miltiorrhiza (Danshen) Supplementation: Bioactive Constituents, Mechanisms, Clinical Evidence and Implications for Nutritional Care

open access: yesFood Science &Nutrition, Volume 14, Issue 5, May 2026.
Salvia miltiorrhiza (Danshen) contains bioactive tanshinones, including tanshinone IIA, cryptotanshinone, and tanshinone I, that exert cardioprotective effects through coordinated modulation of vascular endothelial growth factor receptor (VEGFR), transforming growth factor beta 1 (TGF‐β1), transforming growth factor beta receptor (TGF‐βR), toll‐like ...
Akash Vikal   +6 more
wiley   +1 more source

NOX isoforms in the development of abdominal aortic aneurysm

open access: yesRedox Biology, 2017
Oxidative stress plays an important role in the formation of abdominal aortic aneurysm (AAA), and we have recently established a causal role of uncoupled eNOS in this severe human disease.
Kin Lung Siu   +6 more
doaj   +1 more source

Phenolic Compounds: From Traditional Uses to Innovative Applications and Everything in Between

open access: yesMolecular Nutrition &Food Research, Volume 70, Issue 9, 13 May 2026.
This review deals with many aspects related to the study of phenolic compounds, starting with advances in extraction, detection, and quantification methods, going through bioavailability, bioactivity, and beneficial health properties, and discussing antioxidant and antimicrobial uses and mechanisms.
Marcela de Sá Barreto da Cunha   +5 more
wiley   +1 more source

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