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

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

PROVIDER: PRJNA1166883 | ENA |

REPOSITORIES: ENA

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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.

2025-07-09 | GSE278369 | GEO

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.

2025-07-09 | GSE277616 | GEO

Effect of early calf-hood nutrition on the transcriptomic profile of the HPT axis in Holstein-Friesian bulls

Project description:The aim of this study was to investigate the effect of early calf-hood nutrition on the transcriptomic profile of the arcuate nucleus of the hypothalamus, the anterior pituitary and the testes in Holstein-Friesian bulls and possible downstream effects on reproduction. Holstein Friesian bull calves with a mean (±S.D.) age and bodyweight of 19 (±8.2) days and 47.5 (±5.3) kg, respectively, were assigned to either a high (n=10) or low (n=10) plane of nutrition. Calves were fed in order to achieve an overall growth rate of 1.2 and 0.5 kg/day for the high and low plane of nutrition treatments, respectively. At 126 days of age, the bulls were euthanized using an intravenous overdose of sodium pentobarbitone and arcuate nucleus of the hypothalamus, anterior pituitary and the parenchyma of the testes tissue samples were harvested and RNAseq analysis was performed. At the end of the trial period,

2018-04-12 | GSE97673 | GEO

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

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

| PRJNA1162909 | ENA

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.

2024-07-04 | GSE230543 | GEO

Proteomic analysis underlying the impact of early life nutrition on the molecular control of testicular development in the young bull calf.

Project description:It has been established that enhanced early life nutrition progresses sexual development in the bull calf through neuroendocrine signalling via the hypothalamic-pituitary-testicular axis. However, the underlying molecular mechanisms regulating this process have not been fully elucidated. This study measured the impact of contrasting feeding regimes in the first 12 wk of life, known to impact age at puberty, on the proteomic landscape of the testes of bull calves. Holstein bull calves with a mean (±SD) bodyweight and age of 48.8 (± 5.3) kg and 17.5 (± 2.8) days, were designated to high (HI; n=10) or moderate (MOD; n=10) 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. HI calves were heavier at slaughter (112.4 v 88.7 (2.98) kg, P<0.001), and had a greater average daily gain (ADG) of (0.88 v 0.58 kg, P<0.001). The turquoise network from the protein analyses contained the protein CDH13 which is involved in testes development. Gene ontology analysis of the turquoise network revealed enrichment of genes with functions related to cholesterol biosynthesis, IGF-1 signalling, insulin receptor/secretion signalling, androgen signalling and Sertoli cell junction signalling.

2022-08-30 | PXD031403 | Pride

Effect of enhanced early life nutrition on the bull calf testes transcriptome

Project description:This study evaluated the effect of enhanced dietary intake during the early life period on testes transcriptome in bull calves. Between 2-12 weeks of age bull alves 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, testes parenchyma tissue samples were harvested from all calves and subsequently subjected to mRNAseq. Subsequent bioinformatics analyses revealed differential expression of genes invovled in cellular adhesion and immune function.

2022-08-26 | GSE194305 | GEO

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 enhanced early life nutrition on the hypothalamic arcuate nucleus transcriptome of bull calf

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.

2025-04-22 | GSE278108 | GEO

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