Reset
Showing 20 of 362 academic articles

Revisiting Hyaluronan Catabolism in Bacteroides: Pathway Conservation, Overlooked Proteins, and Predictive Accuracy

Martin Sindelar, Anna Kocurkova, Matej Simek, Pavel Roudnicky et al. • MicrobiologyOpen (2026)

ABSTRACT The ability of gut microbes to degrade host‐ and diet‐derived glycans is central to microbiome ecology and host interactions, yet predicting these functions in silico remains challenging. Hyaluronan (HA), a glycosaminoglycan (GAG) ...

DOAJ Open Access (DOAJ) DOI: 10.1002/mbo3.70227

RESULTS OF THE INVENTORY OF RED DATA BOOK ENDEMIC SPECIES OF THE GENUS SCUTELLARIA L. PRESERVED IN THE UZBEKISTAN NATIONAL HERBARIUM (TASH), A UNIQUE SCIENTIFIC COLLECTION

Saydullayeva Iroda • BIO Web of Conferences (2026)

This study presents an inventory and scientific assessment of herbarium specimens of the genus Scutellaria L. preserved in the collections of the National Herbarium of Uzbekistan (TASH), Institute of Botany, Academy of Sciences of the Repub...

DOAJ Open Access (DOAJ) DOI: 10.1051/bioconf/202626010001

Feeding Pasteurized Waste Milk to Preweaned Dairy Calves Changes Fecal and Upper Respiratory Tract Microbiota

Georgina Maynou, Hugh Chester-Jones, Alex Bach, Alex Bach et al. • Frontiers in Veterinary Science (2019)

In the present study bacterial communities from both, the gastrointestinal and respiratory tract of pre-weaned dairy calves fed two different milk-feeding programs were characterized using 16S rRNA gene sequencing. Twenty female Holstein ca...

DOAJ Open Access (DOAJ) DOI: 10.3389/fvets.2019.00159

The Effects of Deoxynivalenol on the Ultrastructure of the <i>Sacculus Rotundus</i> and <i>Vermiform Appendix</i>, as Well as the Intestinal Microbiota of Weaned Rabbits

Chunyang Wang, Libo Huang, Pengwei Wang, Quancheng Liu et al. • Toxins (2020)

Deoxynivalenol (DON) is a mycotoxin found in grains that poses a potential threat to human and animal health, and the gastrointestinal tract is the primary target organ. There are few studies focused on the toxicology of DON to rabbits, esp...

DOAJ Open Access (DOAJ) DOI: 10.3390/toxins12090569

Traffic Fatalities and Urban Infrastructure: A Spatial Variability Study Using Geographically Weighted Poisson Regression Applied in Cali (Colombia)

Harvy Vivas Pacheco, Diego Rodríguez-Mariaca, Ciro Jaramillo, Andrés Fandiño-Losada et al. • Safety (2023)

The mobility plan and the road infrastructure works implemented, together with the Bus Rapid Transit (BRT) connected bus system in its first two phases, generated optimistic expectations about the reduction of lethal crashes in the city. Th...

DOAJ Open Access (DOAJ) DOI: 10.3390/safety9020034

Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry

Fei Gao, Julia Harz, Chandan Hati, Yi Lu et al. • Journal of High Energy Physics (2025)

Abstract A large primordial lepton asymmetry can lead to successful baryogenesis by preventing the restoration of electroweak symmetry at high temperatures, thereby suppressing the sphaleron rate. This asymmetry can also lead to a first-ord...

DOAJ Open Access (DOAJ) DOI: 10.1007/JHEP06(2025)247

Untargeted metabolomic profiling of Pseudocnella sykion from KwaZulu-Natal, South Africa using 1H-NMR and UPLC-QTOF-HR-MS

Cassandra Upton, Gerhard Prinsloo, Paul Anton Steenkamp, Moses Okpeku • Frontiers in Marine Science (2025)

IntroductionSea cucumbers are ecologically and economically significant marine invertebrates, yet the metabolic diversity and bioactive potential of noncommercialized, endemic species remains poorly understood.MethodsThis study presents the...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmars.2025.1609951

Effect of Different Downward Loads and Rotational Speeds on the Removal of Gutta-Percha and Root Canal Sealer Using a Nickel-Titanium Rotary Gutta-Percha Removal System: An Ex Vivo Study

Koki Toyoda, Shunsuke Kimura, Keiichiro Maki, Satoshi Omori et al. • Applied Sciences (2025)

Effective gutta-percha/sealer removal is essential for predictable nonsurgical endodontic retreatment, but the effects of key operational parameters on nickel–titanium rotary removal instruments remain insufficiently understood. This study ...

DOAJ Open Access (DOAJ) DOI: 10.3390/app16010446

Lactobacillus brevis 23017 Relieves Mercury Toxicity in the Colon by Modulation of Oxidative Stress and Inflammation Through the Interplay of MAPK and NF-κB Signaling Cascades

Xinpeng Jiang, Shanshan Gu, Di Liu, Lili Zhao et al. • Frontiers in Microbiology (2018)

Aims:Lactobacillus strains have protective effects against heavy metals while relieving oxidative stress and modulating the immune response. Mechanisms that ameliorate heavy metal toxicity and the relationship between probiotics and gut bar...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmicb.2018.02425

Diferenciação geográfica de Macrodon ancylodon (Bloch & Schneider, 1801) na costa brasileira, entre as latitudes 18º36'S e 32º10'S: etapa I The geographical differentiation of Macrodon ancylodon (Bloch & Schneider, 1801) in the Brazilian coast between Lat. 18º36'S and 32º10'S: phase I

Noriyoshi Yamaguti • Brazilian Journal of Oceanography (1979)

Multiple range tests according to Kramer, 1956 were performed on 3 meristic and 15 morphometric characters of "pescada-foguete" (Macrodon ancylodon) samples collected off coast near Conceição da Barra (Espirito Santo State), Atafona, Macaé,...

DOAJ Open Access (DOAJ) DOI: 10.1590/S1679-87591979000100002

Artisanal elasmobranch fisheries of northwestern Baja California, Mexico

Omar Santana-Morales, Daniel Cartamil, Oscar Sosa-Nishizaki, Rebeca Zertuche-Chanes et al. • Ciencias Marinas (2020)

Elasmobranch species composition and spatiotemporal variability can often be characterized from landing surveys of local fisheries, with important management implications. In the present study, we describe the elasmobranch landing compositi...

DOAJ Open Access (DOAJ) DOI: 10.7773/cm.v46i1.3023

Dietary Fat Sources Affect Hepatic Health, Performance and Gut Microbiota Composition in Laying Hens as Model

Humera Hamid, Yao Jun Liu, Wen Xiang Li, Shi Meng Huang et al. • Veterinary Medicine and Science (2025)

ABSTRACT Non‐alcoholic fatty liver disease (NAFLD) is a growing concern in both human and animal health, with nutritional strategies playing a key role in its management. This study used a laying hen model to evaluate the effects of two hig...

DOAJ Open Access (DOAJ) DOI: 10.1002/vms3.70665

Bacteriophage: A Useful Tool for Studying Gut Bacteria Function of Housefly Larvae, Musca domestica

Xinyu Zhang, Shumin Wang, Ting Li, Qian Zhang et al. • Microbiology Spectrum (2021)

ABSTRACT Beneficial symbiotic bacteria have positive effects on some insects’ (such as mosquitoes, cockroaches, and flies) biological activities. However, the effects of a lack of one specific symbiotic bacterium on the life activities of s...

DOAJ Open Access (DOAJ) DOI: 10.1128/Spectrum.00599-21

First Report of Ciguatoxins in Two Starfish Species: Ophidiaster ophidianus and Marthasterias glacialis

Marisa Silva, Inés Rodriguez, Aldo Barreiro, Manfred Kaufmann et al. • Toxins (2015)

Ciguatera fish poisoning (CFP) is a syndrome caused by the ingestion of fish contaminated with Ciguatoxins (CTXs). These phycotoxins are produced mainly by dinoflagellates that belong to the genus Gambierdiscus that are transformed in more...

DOAJ Open Access (DOAJ) DOI: 10.3390/toxins7093740

La evaporación en la cuenca del lago de Pátzcuaro, México

Enrique González-Sosa, Carlos A. Mastachi-Loza, J. Bernardo Rivera-Vázquez, Alfonso Gutiérrez-López et al. • Tecnología y ciencias del agua (2010)

La composición anual de la evaporación en la cuenca del lago de Pátzcuaro se integró por la evapotranspiración de la vegetación, las pérdidas por intercepción, la evaporación del cuerpo de agua y la evapotranspiración de la vegetación hidró...

DOAJ Open Access (DOAJ) DOI: 10.24850/j-tyca-2010-03-04

Impact of the Age of Cecal Material Transfer Donors on Alzheimer’s Disease Pathology in 5xFAD Mice

Francesco Valeri, Malena dos Santos Guilherme, Fuqian He, Nicolai M. Stoye et al. • Microorganisms (2021)

Alzheimer’s disease is a progressive neurodegenerative disorder affecting around 30 million patients worldwide. The predominant sporadic variant remains enigmatic as the underlying cause has still not been identified. Since efficient therap...

DOAJ Open Access (DOAJ) DOI: 10.3390/microorganisms9122548

TOURIST SATISFACTION DURING THE PANDEMIC: AN ANALYSIS OF THE EFFECTS OF MEASURES TO PREVENT COVID-19 IN A MEDITERRANEAN COASTAL DESTINATION

Indrajeet MALLICK, Daniel MIRAVET, Aaron GUTIÉRREZ • Geo Journal of Tourism and Geosites (2022)

The impact of the COVID-19 on tourist satisfaction is a particular relevant issue, due to the role that elements such as the prevention measures implemented at the destination might play. For this reason, this article examines tourist satis...

DOAJ Open Access (DOAJ) DOI: 10.30892/gtg.454spl20-991