Human ApoB48 ELISA Kit

Haematological and clinical-biochemical parameters are considered indicators of the physiological/ health status of animals and might serve as intermediate phenotypes to link physiological aspects to production and disease resistance traits. The dissection of the genetic variability affecting these phenotypes might be useful to describe the resilience of the animals and to support the usefulness of the pig as animal model. Here, we analysed 15 haematological and 15 clinical-biochemical traits in 843 Italian Large White pigs, via three genome-wide association scan approaches (single-trait, multi-trait and Bayesian). We identified 52 quantitative trait loci (QTLs) associated with 29 out of 30 analysed blood parameters, with the most significant QTL identified on porcine chromosome 14 for basophil count. Some QTL regions harbour genes that may be the obvious candidates: QTLs for cholesterol parameters identified genes (ADCY8, APOB, ATG5, CDKAL1, PCSK5, PRL and SOX6) that are directly involved in cholesterol metabolism; other QTLs highlighted genes encoding the enzymes being measured [ALT (known also as GPT) and AST (known also as GOT)]. Moreover, the multivariate approach strengthened the association results for several candidate genes. The obtained results can contribute to define new measurable phenotypes that could be applied in breeding programs as proxies for more complex traits.

Cholesterol deficiency (CD) is an autosomal recessive defect in Holstein cattle caused by a mutation in the apolipoprotein B gene (APOB). This paper reports the clinical and pathological phenotype of a case of CD in a 5-months-old Holstein calf. Retarded growth, chronic, intermittent diarrhea, stomatitis, hypocholesterolemia and low blood triglycerides concentrations were the most important clinical and ancillary findings. Histopathologically, inflammation of the digestive organs was the most evident sign. Blood from the patient, the dam, sisterl, sister2 and semen of the sire were tested for APOB mutation: the calf resulted homozygous, whereas the dam and the sire resulted heterozygous carriers. Both sisters were APOB mutation free. Cholesterol deficiency should be considered in the differential diagnosis of chronic diarrhea and failure to thrive in Holstein calves. (C) 2019 PVJ. All rights reserved