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Incorrect paternity assignment in cattle can significantly influence the accuracy of genetic evaluation. Recent advances in high-throughput technology have facilitated the identification of single nucleotide polymorphism (SNP) markers and their applications for filiation and individual identification. We genotyped 1074 bulls from a reference population of Chinese Simmental cattle for genomic selection...
Fat-1 transgenic cattle have high levels of ω-3 fatty acids, which regulate several genes in fatty acid metabolism. In the current study, fibroblasts derived from in vivo fertilized (Ferti) and fat-1 transgenic (TG) Luxi cattle (Bos taurus), a local breed in China, were cultured and their miRNA expression was characterized. Expression of 352 known miRNAs differed in cells from Ferti and TG cattle:...
Accumulating evidence has indicated that microRNAs (miRNAs) and endoplasmic reticulum (ER) stress play critical roles in myoblast differentiation. However, the regulation roles of miRNAs and ER stress in myogenic differentiation have not been fully revealed and need to be further studied. Here, we discovered that the expression levels of miR-181a-5p were strongly upregulated during C2C12 cell differentiation...
Defensins are one of the major families of antimicrobial peptides (AMPs), and have been reported from prokaryotic to eukaryotic kingdoms. But defensins are seldom found in amphibian which is a major resource of novel AMPs. A novel defensin-like AMP (defensin-TK) was isolated and characterized from skin secretions of the tree frog Theloderma kwangsiensis. The cDNA encoding defensin-TK precursor was...
Glucose is a substrate for fatty acid synthesis, and induces lipogenesis and expressions of lipogenic genes. It was proposed that transcriptional factor ChREBP, LXRα and SREBP-1c are key mediators in lipogenesis induced by glucose, however the underlying mechanism remains unclear in porcine adipocytes. In this study, glucose stimulated lipogenesis and expressions of ChREBP, LXRα, SREBP-1c and lipogenic...
Nucleobindin 2 (NUCB2) is a precursor of nesfatin-1, a hypothalamic anorectic neuropeptide. The association between variants of the NUCB2 gene and adiposity was examined. 142 severely obese Chinese children in Singapore, and 384 normal weight Chinese children from a longitudinal cohort from Da Qing, China, were studied. NUCB2 was screened using PCR and direct sequencing in 29 severely obese children...
Renal hypouricemia (RHUC), as an infrequent hereditary disease, is associated with severe complications such as exercise-induced acute renal failure (EIARF). Loss-of-function mutations in urate transporter gene URAT1 (Type 1) and in glucose transporter gene GLUT9 (Type 2) are major causes of this disorder. In this study, URAT1 and GLUT9 were screened in two uncorrelated families from mainland China...
Using forward genetic analysis, we identified the insertion of an intracisternal A particle (IAP) retrotransposon element in the plasma membrane calcium ATPase 2 gene (Pmca2/Atp2b2) in the joggle mouse, a novel mutant that displays ataxic gait by postnatal day 12. Expression of Pmca2 mRNA in the joggle mouse is only 5% of that in the wild type mouse. The insertion is located 15 bp downstream of the...
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