Results 161 to 170 of about 78,151 (289)

Direct evidence of singlet molecular oxygen [O2 (1Δg)] production from UVA excited 6‐thioguanine

Photochemistry and Photobiology, EarlyView.
6‐Thioguanine (6‐TGua) is incorporated into DNA as a purine analogue, inhibiting cell replication. Patients treated with 6‐TGua are more prone to developing skin cancer due to the photoexcitation of 6‐TGua by UVA radiation (as illustrated in the Jablonski diagram). Upon exposure to UVA, the excited 6‐TGua generates 1O2.
André L. Lopes, Fernanda M. Prado, Helena C. Junqueira, Marisa H. G. Medeiros, Graziella E Ronsein, Jean Cadet, Paolo Di Mascio   +6 more
wiley   +1 more source

Recombinant LPG3 Protein From Leishmania chagasi as an Antigen for the Diagnosis of Canine Visceral Leishmaniasis

Tropical Medicine &International Health, EarlyView.
ABSTRACT Visceral leishmaniasis (VL) is a human neglected tropical disease in which dogs participate as reservoirs of the etiological agent Leishmania chagasi. The identification of infected dogs is important to the control of VL, and recombinant proteins are strong antigen candidates for canine visceral leishmaniasis (CVL) serodiagnosis. In this work,
Thaís Viana Fialho Martins, Anna Cláudia Alves de Souza, Bianca Meireles Miranda, Ronny Francisco de Souza, Daniel Silva Sena Bastos, Neverton José Silva Ferreira, Tiago Antônio de Oliveira Mendes, Celeste da Silva Freitas de Souza, George Luiz Lins Machado‐Coelho, Maria Terezinha Bahia, Leandro Licursi de Oliveira, Juliana Lopes Rangel Fietto, Eduardo de Almeida Marques‐da‐Silva   +12 more
wiley   +1 more source

Efficient Gene Expression System in Medaka Embryos Enables Functional Characterization of nt5c1a Paralogs Involved in Inosine Monophosphate Metabolism

genesis, Volume 64, Issue 3, June 2026.
ABSTRACT Optimizing transient expression systems in fish embryos is crucial for rapid gene function analysis. Here, we established an efficient system in medaka (Oryzias latipes) embryos by evaluating nucleic acid type and injection site. Our results revealed that injecting the elongation factor 1αA (ef1αA) promoter‐driven plasmid into the yolk yielded
Yu Murakami, Tomohisa Horibe, Masashi Ando, Toru Kobayashi   +3 more
wiley   +1 more source

Heme Metabolism‐Derived Carbon Monoxide Regulates Skeletal Muscle Function

Journal of Cachexia, Sarcopenia and Muscle, Volume 17, Issue 3, June 2026.
ABSTRACT Background Heme oxygenases, HO‐1 (Hmox1) and HO‐2 (Hmox2), regulate skeletal muscle homeostasis by degrading heme and generating carbon monoxide (CO), a bioactive signalling molecule. Although HO‐1 is known to influence muscle fibre composition and mitochondrial function, the role of HO‐2 in activity‐dependent neuromuscular plasticity remains ...
Rodrigo W. Alves de Souza, Hyo In Kim, Paula Ketilly Nascimento Alves, Ailma Oliveira da Paixão, Ashlee Rasmussen, Sidharth Shankar, James Harbison, Vanessa Azevedo Voltarelli, Leo E. Otterbein   +8 more
wiley   +1 more source

On why cancer cells require a great amount of glucose

Quantitative Biology, Volume 14, Issue 2, June 2026.
Abstract The traditional thinking has been that cancer cells require a great amount of glucose to support their rapid growth, but the reality may be different. We have previously demonstrated that all cancer cells in The Cancer Genome Atlas harbor persistent Fenton reactions in their cytosol, which generate OH− ${\text{OH}}^{-}$ and ultimately kill the
Xuechen Mu, Aoran Liu, Rui Shi, Long Xu, Zhenyu Huang, Ye Zhang, Ying Xu   +6 more
wiley   +1 more source

A Structural Context for the Mechanisms of Uncoupling Protein 1 in Brown Fat Thermogenesis

Acta Physiologica, Volume 242, Issue 6, June 2026.
ABSTRACT Uncoupling Protein 1 (UCP1) is a defining feature of brown fat and facilitates the specialized ability of the tissue to generate heat in the process of non‐shivering thermogenesis. The protein is activated by fatty acids, which overcome its inhibition by purine nucleotides, to catalyze proton leak across the mitochondrial inner membrane ...
Riccardo Cavalieri, Margeoux A. S. Dela Rosa, Camila A. Cotrim, Danielle Copeman, Mehmethan Aris, Callum Eke, Hannah Staggs‐Sandy, Paul G. Crichton   +7 more
wiley   +1 more source

Assessment of DNA Variations From Two In Vivo Skeletal Muscle Disorder Mouse Models Using Complementary Square‐Wave Voltammetry and LC‐MS/MS Analysis

ChemBioChem, Volume 27, Issue 9, 14 May 2026.
Complementary square wave voltammetry (SWV) and liquid chromatography‐tandem mass spectrometry (LC‐MS/MS DNA) are used to analyze DNA extracted from selected muscle tissues from either mdx or col5a1(+/‐) mouse models. SWV oxidative currents change with treatment and allow for a rapid genetic analysis.
Elizabeth R. LaFave, Grayson B. Sink, Saphal Bhandari, Emma L. Rayfield, Andrew T. Readyoff, Espen E. Spangenburg, Eli G. Hvastkovs   +6 more
wiley   +1 more source

Pyrazolyl–Pyridine Ruthenium Complexes: A New Metallic Line of Defense Against Acinetobacter baumannii

ChemBioChem, Volume 27, Issue 9, 14 May 2026.
Ruthenium(II) (Ru(II)) pyrazolyl–pyridine half‐sandwich complexes (C1–C6) were synthesized and structurally characterized as prospective metalloantibiotics. Screening through the Community for Open Antimicrobial Drug Discovery (CO‐ADD) revealed selective activity against Acinetobacter baumannii, with favorable cytotoxicity profiles. Biophysical studies
M. Cassiem Joseph, Sheldon Sookai, Monika Nowakowska, Rotondwa Mphephu, Angela M. Kavanagh, Johannes Zuegg, Mark A. T. Blaskovich, Andrew J. Swarts   +7 more
wiley   +1 more source

Boron Neutron Capture Therapy at a Crossroads: Translational Gap and Emerging Delivery Agents

Chemistry – A European Journal, Volume 32, Issue 17, 5 May 2026.
This review surveys recent advances in boron delivery agents for BNCT, emphasizing the shift from classical small molecules to multifunctional nanocarriers and theranostic systems. By integrating targeting, imaging, and therapy, next‐generation boron compounds aim to bridge the gap between (bio)chemical innovation and clinical translation.
Christoph Selg, Evamarie Hey‐Hawkins
wiley   +1 more source

Regulation of the biosynthesis and interconversion of purine nucleotides [PDF]

Arthritis & Rheumatism, 1965
openaire   +2 more sources