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Copper excess induces autophagy dysfunction and mitochondrial ROS-ferroptosis progression, inhibits cellular biosynthesis of milk protein and lipid in bovine mammary epithelial cells.
Ecotoxicol Environ Saf
January 2025
College of Animal Science, Jilin University, Jilin Provincial Key Laboratory of Livestock and Poultry Feed and Feeding In Northeastern Frigid Area, Changchun 130062, China. Electronic address:
Excessive copper (Cu) has the potential risk to ecosystems and organism health, with its impact on dairy cow mammary glands being not well-defined. This study used a bovine mammary epithelial cell (MAC-T) model to explore how copper excess affects cellular oxidative stress, autophagy, ferroptosis, and protein and lipid biosynthesis in milk. Results showed the increased intracellular ROS, MDA, and CAT (P < 0.
View Article and Find Full Text PDFDistribution and Fasciola infection rates of Lymnaea snails and cattle in high-salinity areas of Mekong Delta, Vietnam.
J Vet Med Sci
January 2025
Laboratory of Global Animal Resource Science, Department of Global Agricultural Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo.
Fasciola-induced fascioliasis is a zoonotic disease with significant health and economic impacts on humans and livestock. Freshwater Lymnaea snails serve as intermediate hosts, contributing to the increasing prevalence of fascioliasis in cattle in coastal areas. The salinity tolerance of Lymnaea snails was investigated along with their distribution and Fasciola infection rates in both snails and grazing cattle in Ben Tre, Tra Vinh, and Soc Trang provinces in Mekong Delta, Vietnam, where seawater reversely enters into the paddy field during the dry season.
View Article and Find Full Text PDFElucidating the life history parameters of Culicoides oxystoma (Diptera: Ceratopogonidae) under varied substrate compositions and temperatures.
J Med Entomol
January 2025
Entomology Research Unit, Department of Zoology, The University of Burdwan, Burdwan, India.
A comprehensive study was conducted on the life history parameters of an important vector Culicoides oxystoma Kieffer (Diptera: Ceratopogonidae), to standardize potential rearing procedures. Data on life history traits and rearing conditions are crucial for establishing laboratory colony and conducting vector competence-based studies utilizing specimens with a known rearing history. Six different substrate compositions were used to rear the larvae: S1: habitat mud containing cattle manure + nutrient broth + yeast, S2: yeast, S3: habitat mud containing cattle manure + nutrient broth, S4: nutrient broth, S5: sterile (habitat mud consisting cattle manure + nutrient broth + yeast) and S6: tap water.
View Article and Find Full Text PDFPersistent cross-species transmission systems dominate Shiga toxin-producing O157:H7 epidemiology in a high incidence region: A genomic epidemiology study.
Elife
January 2025
Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, Canada.
Several areas of the world suffer a notably high incidence of Shiga toxin-producing . To assess the impact of persistent cross-species transmission systems on the epidemiology of O157:H7 in Alberta, Canada, we sequenced and assembled O157:H7 isolates originating from collocated cattle and human populations, 2007-2015. We constructed a timed phylogeny using BEAST2 using a structured coalescent model.
View Article and Find Full Text PDFBackground infections pose a significant challenge in low- and middle-income countries, contributing to child mortality. is linked to acute gastrointestinal illness and severe long-term consequences, including environmental enteric dysfunction (EED) and stunting. In 2018, our cross-sectional study in Ethiopia detected in 88% of stools from children aged 12-15 months, with an average of 11 species per stool using meta-total RNA sequencing.
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