Birth delivery method affects expression of immune genes in lung and jejunum tissue of neonatal beef calves

Autor: Carla Surlis, Keelan McNamara, Eoin O’Hara, Sinead Waters, Marijke Beltman, Joseph Cassidy, David Kenny
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: BMC Veterinary Research, Vol 13, Iss 1, Pp 1-11 (2017)
Druh dokumentu: article
ISSN: 1746-6148
DOI: 10.1186/s12917-017-1310-2
Popis: Abstract Background Caesarean section is a routine veterinary obstetrical procedure employed to alleviate dystocia in cattle. However, CS, particularly before the onset of labour, is known to negatively affect neonatal respiration and metabolic adaptation in humans, though there is little published information for cattle. The aim of this study was to investigate the effect of elective caesarean section (ECS) or normal trans-vaginal (TV) delivery, on lung and jejunal gene expression profiles of neonatal calves. Results Paternal half-sib Angus calves (gestation length 278 + 1.8 d) were delivered either transvaginally (TV; n = 8) or by elective caesarean section (ECS; n = 9) and immediately euthanized. Lung and jejunum epithelial tissue was isolated and snap frozen. Total RNA was extracted using Trizol reagent and reverse transcribed to generate cDNA. For lung tissue, primers were designed to target genes involved in immunity, surfactant production, cellular detoxification, membrane transport and mucin production. Primers for jejunum tissue were chosen to target mucin production, immunoglobulin uptake, cortisol reaction and membrane trafficking. Quantitative real-time PCR reactions were performed and data were statistically analysed using mixed models ANOVA. In lung tissue the expression of five genes were affected (p
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