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Related Experiment Videos

Fetal hypophysectomy causes a decrease in preadipocyte growth and insulin like growth factor-1 in pigs.

D E Jewell1, G J Hausman, D R Campion

  • 1Department of Foods and Nutrition, University of Georgia, Athens 30602.

Domestic Animal Endocrinology
|July 1, 1989
PubMed
Summary
This summary is machine-generated.

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Hypophysectomized (HX) fetal pig serum, lacking pituitary hormones, shows reduced adipogenic factors essential for fat cell growth and proliferation. This highlights the pituitary

Area of Science:

  • Endocrinology
  • Developmental Biology
  • Cell Biology

Background:

  • The pituitary gland influences fetal development through hormone secretion.
  • Insulin-like growth factor-1 (IGF-1) plays a role in growth and metabolism.
  • Adipogenesis, the process of fat cell formation, is regulated by various factors.

Purpose of the Study:

  • To investigate the role of pituitary hormones in fetal pig serum on adipogenesis.
  • To determine the levels of adipogenic factors in hypophysectomized (HX) fetal pig serum.
  • To assess the impact of HX fetal pig serum on preadipocyte proliferation and differentiation.

Main Methods:

  • In utero hypophysectomy (HX) of fetal pigs at 72-74 days of gestation.
  • Collection of fetal pig sera at 110 days of gestation for analysis.

Related Experiment Videos

  • In vitro culture of stromal-vascular cells and rat preadipocytes using fetal pig sera.

    • Main Results:

    • HX fetal pig sera exhibited lower insulin-like growth factor-1 (IGF-1) levels compared to controls.
    • Stromal-vascular cell cultures grown in HX fetal sera showed reduced soluble protein concentration and adipocyte numbers.
    • Preadipocyte proliferation was diminished in rat cell cultures exposed to HX fetal sera.

    Conclusions:

    • Fetal pig serum contains adipogenic factors crucial for adipocyte proliferation and differentiation.
    • Hypophysectomy in fetal pigs leads to a reduction in these essential adipogenic factors.
    • Pituitary function is vital for the production of factors that support adipose tissue development in fetal pigs.