Publications by authors named "O Yamato"

Apoptosis, an important pathological event associated with kidney disease progression, is expected to be a therapeutic target in chronic kidney disease (CKD). However, its role in naturally occurring CKD in aged cats remains unclear. Therefore, here, we investigated kidney tissues from aged cats (≥10 years) with or without azotemic CKD to evaluate apoptotic events using a terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labeling (TUNEL) assay.

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Article Synopsis
  • The presence of Fusarium mycotoxins, particularly zearalenone (ZEN) and deoxynivalenol (DON), in animal feed poses health risks to livestock and food safety, with significant levels found in Japanese Black and Holstein Friesian herds.
  • Monitoring of serum and urinary biomarkers indicated that ZEN levels exceeded safety limits in the JB herd, while the HF herd demonstrated high levels of DON, affecting various health parameters including anti-Müllerian hormone (AMH) and serum amyloid A (SAA).
  • The study revealed correlations between mycotoxin levels and inflammation markers, with the HF herd experiencing increased mastitis cases and higher treatment rates during contamination peaks, highlighting the need for monitoring and mitigation strategies.
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Hepatocellular adenoma (HCA) and hepatocellular carcinoma (HCC) can be difficult to differentiate but must be diagnosed correctly as treatment and prognosis for these tumors differ markedly. Relevant diagnostic biomarkers are thus needed, and those identified in dogs may have utility in human medicine because of the similarities between human and canine HCA and HCC. A tRNA-derived fragment (tRF), tRNA-Val, is a promising potential biomarker for canine mammary gland tumors but has not previously been investigated in hepatic tumors.

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We evaluated the relationship between decreased pregnancy-associated glycoprotein (PAG) levels, inflammatory parameters (serum amyloid A [SAA] and milk amyloid A [MAA]), postpartum inflammatory conditions (mastitis, ketosis, and follicular cysts), and the gene. Nineteen Holstein-Friesian cows were included in this study. Up to approximately eight weeks after delivery, weekly health examinations were performed for mastitis and ketosis, and reproductive organ ultrasonography was performed.

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Drug-metabolizing enzymes are important in drug development and therapy, but have not been fully identified and characterized in many species, lines, and breeds. Liver transcriptomic data were analyzed for phase I cytochromes P450, flavin-containing monooxygenases, and carboxylesterases and phase II UDP-glucuronosyltransferases, sulfotransferases, and glutathione S-transferases. Comparisons with a variety of species (humans, rhesus macaques, African green monkeys, baboons, common marmosets, cattle, sheep, pigs, cats, dogs, rabbits, tree shrews, rats, mice, and chickens) revealed both general similarities and differences in the transcript abundances of drug-metabolizing enzymes.

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