Results 101 to 110 of about 40,426 (262)

Concurrence of Plasmodium falciparum dhfr and crt mutations in northern Ghana

open access: yesMalaria Journal, 2005
BackgroundBoth chloroquine (CQ) and sulfadoxine-pyrimethamine (SP) are failing drugs in much of sub-Saharan Africa. Previous findings suggest an association between resistance to CQ and to SP in vivo, in vitro, and on the molecular level.MethodsIn 126 ...
F. P. Mockenhaupt   +7 more
semanticscholar   +1 more source

Do We Need to Worry About Staphylococcus epidermidis ST0409KOC, a Cheese‐Isolated Strain With Bacteriocinogenic Properties?

open access: yesMolecular Nutrition &Food Research, Volume 70, Issue 1, January 2026.
Bacteriocinogenic Staphylococcus epidermidis ST0409KOC was isolated from cheese and characterized as bacteriocin‐producing with strong activity versus Listeria monocytogenes and other pathogens. S. epidermidis ST0409KOC can be considered a safe strain regarding its virulence genetic background, presenting only a single virulence gene of IS257 among the
Kayque Ordonho Carneiro   +2 more
wiley   +1 more source

RAE-1 ligands for the NKG2D receptor are regulated by E2F transcription factors, which control cell cycle entry. [PDF]

open access: yes, 2012
The NKG2D stimulatory receptor expressed by natural killer cells and T cell subsets recognizes cell surface ligands that are induced on transformed and infected cells and facilitate immune rejection of tumor cells.
Hsiung, Benjamin   +4 more
core   +2 more sources

Polydopamine‐Based Antioxidant Countermeasures Against Spaceflight‐Induced Neurodegeneration

open access: yesSmall Science, Volume 6, Issue 1, January 2026.
Polydopamine nanoparticles (PDNPs) protect neuron‐like cells from microgravity‐ and cosmic radiation‐induced oxidative stress. Through in‐flight and ground‐based experiments, it has been shown that PDNPs preserve neuronal and mitochondrial function, markedly mitigating transcriptional dysregulation caused by spaceflight.
Alessio Carmignani   +10 more
wiley   +1 more source

Soluble oligomerization provides a beneficial fitness effect on destabilizing mutations. [PDF]

open access: yes, 2011
Protein stability is widely recognized as a major evolutionary constraint. However, the relation between mutation-induced perturbations of protein stability and biological fitness has remained elusive.
Eugene Shakhnovich, Shimon Bershtein
core   +1 more source

PLETHORAs shape Arabidopsis phyllotaxis through modulation of patterning robustness and accelerated inflorescence development

open access: yesNew Phytologist, Volume 249, Issue 1, Page 495-511, January 2026.
Summary Phyllotaxis is the arrangement of lateral organs on a stem axis, which in Arabidopsis follows a spiral pattern. We previously described that loss of three PLETHORA (PLT) transcription factors shifts the phyllotactic spiral to novel metastable patterns, but the mechanism behind these shifts remained unclear.
Merijn Kerstens   +4 more
wiley   +1 more source

Expression proteomics reveals protein targets and highlights mechanisms of action of small molecule drugs

open access: yes, 2014
Phenomenological screening of small molecule libraries for anticancer activity yields potentially interesting candidate molecules, with a bottleneck in the determination of drug targets and the mechanism of anticancer action.
Chernobrovkin, Alexey   +3 more
core   +1 more source

Excessive DNA Double‐Strand Breaks–Associated 3D Genome Reorganization Contributes to Neural Tube Defects with Folate Deficiency

open access: yesAdvanced Science, Volume 12, Issue 47, December 18, 2025.
Neural tube defects (NTDs) are among the most common congenital malformations. However, the underlying etiology and mechanism remain elusive. Here, the role of DNA double‐strand breaks (DSBs) in 3D genome organization within the NTDs with folate deficiency is reported.
Ting Zhang   +12 more
wiley   +1 more source

Protein sectors: statistical coupling analysis versus conservation

open access: yes, 2014
Statistical coupling analysis (SCA) is a method for analyzing multiple sequence alignments that was used to identify groups of coevolving residues termed "sectors".
Colwell, Lucy J.   +2 more
core   +4 more sources

Drug interactions may be important risk factors for methotrexate neurotoxicity, particularly in pediatric leukemia patients [PDF]

open access: yes, 2016
Purpose: Methotrexate administration is associated with frequent adverse neurological events during treatment for childhood acute lymphoblastic leukemia.
Baird, Susan F.   +5 more
core   +2 more sources

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