Results 51 to 60 of about 10,444 (253)

Microbial profile of the appendix niche in acute appendicitis: a novel sampling approach

FEBS Open Bio, Volume 15, Issue 12, Page 2001-2020, December 2025.
This study utilized a novel sampling method, ERAT (i.e. endoscopic retrograde appendicitis treatment)‐guided lumen aspiration, to obtain samples from the appendix, and shotgun metagenomic sequencing was performed for in situ characterization of the appendix microbiome in patients with acute appendicitis.
Huimin Ma, Mingfei Wang, Yanhu Feng, Wanqi Zhang, Wenbo Wang, Yanfeng Xie, Guixiang Kong, Jie Feng, Pengfei Wang, Qi Wang, Xiaojun Huang   +10 more
wiley   +1 more source

Occurrence and significance of folic acid

Pteridines, 2018
Folic acid is a naturally occurring pteridine, which was originally isolated from plants. Folic acid (pteroyl-glutamic acid) is composed of pteridine (6-methylptero), p-aminobenzoic acid (PABA) and glutamic acid.
Cieślik Ewa, Cieślik Iwona
doaj   +1 more source

Urinary Oxidative Damage Markers and Their Association with Obesity-Related Metabolic Risk Factors

Antioxidants, 2022
Oxidative damage and inflammation are possible mechanisms linking obesity to diabetes and related complications. This study investigates the levels of oxidative damage markers in the urine of community free-living subjects with increased prevalence of ...
Salah Gariballa, Abderrahim Nemmar, Ozaz Elzaki, Nur Elena Zaaba, Javed Yasin   +4 more
doaj   +1 more source

Structural features of halophilicity derived from the crystal structure of dihydrofolate reductase from the Dead Sea halophilic archaeon, Haloferax volcanii [PDF]

, 1982
Background: The proteins of halophilic archaea require high salt concentrations both for stability and for activity, whereas they denature at low ionic strength. The structural basis for this phenomenon is not yet well understood.
Pieper, Ursula, Kapadia, Geeta, Mevarech, Moshe, Herzberg, Osnat   +3 more
core   +5 more sources

Individual identification of bony fishes using unique body markings: Implications and applications

Journal of Fish Biology, Volume 107, Issue 6, Page 1852-1867, December 2025.
Abstract The natural variation in animal body markings, such as spots, stripes and blotches, offers a powerful tool for researchers, conservationists, citizen scientists and resource managers to distinguish specific individuals within species. By building libraries of photo‐identified individuals, we can track and differentiate individuals over time ...
Katie Dunkley, Samuel R. Matchette, Cheuk Yu Hau, Christian Drerup, Roxanne B. Holmes, Yvonne Sadovy de Mitcheson, James E. Herbert‐Read   +6 more
wiley   +1 more source

Gene expression in Leishmania is regulated predominantly by gene dosage [PDF]

, 2017
Leishmania tropica, a unicellular eukaryotic parasite present in North and East Africa, the Middle East, and the Indian subcontinent, has been linked to large outbreaks of cutaneous leishmaniasis in displaced populations in Iraq, Jordan, and Syria. Here,
Berriman, Matthew, Beverley, Stephen M., Cotton, James A., Durrant, Caroline, Grigg, Michael E., Iantorno, Stefano A., Khan, Asis, Myler, Peter, Ouellette, Marc, Sacks, David L., Sanders, Mandy J., Warren, Wesley C., Weiss, Louis M.   +12 more
core   +3 more sources

Applications of QSPR and Machine Learning in Molecular Photonics

Advanced Optical Materials, Volume 13, Issue 33, November 25, 2025.
Quantitative structureproperty relationships (QSPR) and machine learning (ML) are transforming photochemistry by enabling pre‐synthetic screening of photoactive molecules. This review outlines advances in data‐driven discovery of optical materials and functional dyes, identifies effective descriptors and models for photophysical processes, and provides
Andrey A. Buglak, Platon P. Chebotaev, Mikhail A. Filatov   +2 more
wiley   +1 more source

1,3,7-Trimethyl-2,4-dioxo-1,2,3,4-tetrahydropteridine-6-carboxylic acid hemihydrate

Acta Crystallographica Section E, 2010
In the title compound, C10H10N4O4·0.5H2O, the two rings of the pteridine system are nearly coplanar [dihedral angle = 4.25 (9)°]. The atoms of the carboxyl group are also coplanar with the pteridine unit [r.m.s. deviation from
Miguel N. Moreno-Carretero, Fátima M. Linares-Ordóñez, Sonia B. Jiménez-Pulido, René Faure, Nuria A. Illán-Cabeza   +4 more
doaj   +1 more source

Being red, blue and green: the genetic basis of coloration differences in the strawberry poison frog (Oophaga pumilio)

BMC Genomics, 2020
Background Animal coloration is usually an adaptive attribute, under strong local selection pressures and often diversified among species or populations.
Ariel Rodríguez, Nicholas I. Mundy, Roberto Ibáñez, Heike Pröhl   +3 more
doaj   +1 more source

Dilute-and-Shoot-Liquid Chromatography-Quadrupole Time of Flight-Mass Spectrometry for Pteridine Profiling in Human Urine and Its Association with Different Pathologies

Chemosensors, 2023
Pteridines are a group of compounds synthesised by many living organisms that are involved in the metabolism of many cofactors and vitamins. Their concentration in biological fluids may be altered by various pathologies such as cancer or inflammatory ...
Claudia Giménez-Campillo, Marta Pastor-Belda, Natalia Arroyo-Manzanares, Natalia Campillo, Blanca del Val Oliver, José Zarauz-García, Luis Sáenz, Pilar Viñas   +7 more
doaj   +1 more source