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Effect of enhanced early life nutrition on anterior pituitary miRNA transcriptome in bull calves.

ABSTRACT: Effect of enhanced early life nutrition on anterior pituitary miRNA transcriptome in bull calves.

PROVIDER: PRJNA1162909 | ENA |

REPOSITORIES: ENA

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Proteomic profiling of anterior pituitary of bull calves offered either a high or moderate plane of nutrition in early life

Project description:Enhanced nutrition during the early calfhood period has been shown to hasten the onset of puberty in bull calves. The hypothalamic-pituitary-ovarian biochemical signalling axis regulates reproductive development in bulls, with the dynamics of gonadotropin pulsatility within the anterior pituitary gland, in particular, central to final sexual maturity. However, the precise molecular mechanisms regulating the influence of metabolic status on this signalling axis in bull calves is yet to be fully elucidated. The objective of this study was to determine the effect of an enhanced plane of nutrition during early life, up to 12 weeks of age, on the anterior pituitary gland proteome of bull calves. Bull calves were offered either a high or moderate plane of nutrition.

2025-07-14 | PXD055940 | Pride

Effect of enhanced early life nutrition on anterior pituitary miRNA transcriptome in bull calves.

Project description:The aim of this study was to measure the impact of contrasting feeding regimes in the first 12 wk of life, on the molecular control of anterior pituitary tissue in bull calves. Holstein bull calves were designated to high (HI; n=15) or moderate (MOD; n=12) dietary groups, with diets designed to provoke growth rates of 1.0 and 0.5 kg/day, respectively. At 12 wk of age, all calves were euthanized, and anterior pituitary tissue harvested. RNA was extracted from the anterior pituitary and used for miRNAseq.

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Effect of enhanced early life nutrition on the anterior pituitary transcriptome of bull calf

Project description:This study evaluated the effect of enhanced dietary intake during the early life period on the anterior pituitary transcriptome in bull calves. Between 2-12 weeks of age bull calves were offered either a high (HI; n=15) or moderate (MOD; n=15) plane of nutrition, with diets designed to evoke growth rates of 1.0 and 0.5 kg/day, respectively. At 12 wk of age, anterior pituitary tissue samples were harvested from all calves and subsequently subjected to mRNAseq.

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Proteomic profiling of anterior pituitary of heifer calves offered either a high or moderate plane of nutrition in early life

Project description:Enhanced nutrition during the early calfhood period has been shown to hasten the onset of puberty in heifer calves. The hypothalamic-pituitary-ovarian biochemical signalling axis regulates reproductive development in heifers, with the dynamics of gonadotropin pulsatility within the anterior pituitary gland, in particular, central to final sexual maturity. However, the precise molecular mechanisms regulating the influence of metabolic status on this signalling axis in heifer calves is yet to be fully elucidated. The objective of this study was to determine the effect of an enhanced plane of nutrition during early life, up to 21 weeks of age, on the anterior pituitary gland proteome of heifer calves. Heifer calves were offered either a high or moderate plane of nutrition. Pathway analysis of differentially abundant proteins highlighted an effect on both growth hormone and GnRH signalling pathways, as well as an effect towards reproductive system development and function

2024-07-04 | PXD042011 | Pride

Effect of early-life plane of nutrition on the transcriptional profile of the anterior pituitary gland in heifer calves

Project description:The aim of this study was to examine changes in the transcriptional profile of the anterior pituitary gland of heifer calves offered varying planes of nutrition during the early life period. From approximately 3 weeks of age (19 ± 5 days of age) Angus X Holstein-Friesian heifer calves were offered either a high (HP, n=13) or moderate (MP, n=15) plane of nutrition to achieve target growth rates of 1.2 kg/d and 0.5 kg/d, respectively. After 18 weeks of differential feeding all calves were euthanized and anterior pituitary tissue samples harvested from each calf. RNA was extracted and subsequently subjected to RNAseq analysis. A total of 195 genes were identified as significantly differentially expressed between calves on the High plane of nutrition and those on the Moderate plane of nutrition. Biological pathway analysis revealed an enrichement from these genes for processes and pathways related to growth and reproductive system development.

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Effect of enhanced early life nutrition on the anterior pituitary transcriptome of bull calf

Project description:Effect of enhanced early life nutrition on the anterior pituitary transcriptome of bull calf

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Project description:This study evaluated the effect of enhanced dietary intake during the early life period on hypothalamic arcuate nucleus transcriptome in bull calves. Between 2-12 weeks of age bull calves were offered either a high (HI; n=15) or moderate (MOD; n=15) plane of nutrition, with diets designed to evoke growth rates of 1.0 and 0.5 kg/day, respectively. At 12 wk of age, arcuate nucleus tissue samples were harvested from all calves and subsequently subjected to mRNAseq.

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Effect of enhanced early life nutrition on hypothalamic arcuate nucleus miRNA transcriptome in bull calves.

Project description:The aim of this study was to measure the impact of contrasting feeding regimes in the first 12 wk of life, on the molecular control of hypothalamic arcuate nucleus tissue in bull calves. Holstein bull calves were designated to high (HI; n=15) or moderate (MOD; n=12) dietary groups, with diets designed to provoke growth rates of 1.0 and 0.5 kg/day, respectively. At 12 wk of age, all calves were euthanized, and hypothalamic arcuate nucleus tissue harvested. RNA was extracted from the hypothalamic arcuate nucleus and used for miRNAseq.

2025-04-22 | GSE277781 | GEO

Effect of enhanced early life nutrition on testes miRNA transcriptome in bull calves

Project description:The aim of this study was to measure the impact of contrasting feeding regimes in the first 12 wk of life, known to impact age at puberty on the molecular control of the testes in bull calves. Holstein bull calves were designated to high (HI; n=15) or moderate (MOD; n=15) dietary groups, with diets designed to provoke growth rates of 1.0 and 0.5 kg/day, respectively. At 12 wk of age, all calves were euthanized, and testes parenchyma harvested. RNA was extracted from the testes and used for miRNAseq. Bioinformatic analysis identified 7 miRNA as differentially expressed between the HI and MOD treatment groups, with target mRNA genes invovled in pathways related to AMPK and IGF-1 signaling.

2022-08-26 | GSE194041 | GEO

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