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Vitamin D Deficiency During Development Permanently Alters Liver Cell Composition and Function.

Kassidy Lundy1, John F Greally2, Grace Essilfie-Bondzie1

  • 1Department of Genetics, Albert Einstein College of Medicine, Bronx, NY, United States.

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Summary

Prenatal vitamin D deficiency can permanently alter adult liver development and gene expression in offspring. This study reveals a long-term impact on liver cell populations, potentially contributing to future health risks.

Keywords:
DOHaD (developmental origins of health and disease)liverprenatal environmenttranscriptional alterationsvitamin D deficiency

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Area of Science:

  • Endocrinology
  • Developmental Biology
  • Hepatology

Background:

  • Vitamin D is crucial for calcium homeostasis and development.
  • High prevalence of vitamin D deficiency is a global health concern.
  • Prenatal vitamin D deficiency may increase offspring disease risks, including metabolic issues.

Purpose of the Study:

  • To investigate if prenatal vitamin D deficiency permanently alters liver development and gene expression in offspring.
  • To examine the histopathology and transcriptomic profiles of adult mouse livers following prenatal vitamin D deficiency.

Main Methods:

  • Utilized a maternal dietary intervention model in C57BL/6J mice to induce prenatal vitamin D deficiency.
  • Analyzed liver histopathology and gene expression profiles of offspring exposed to prenatal vitamin D deficiency.
  • Performed cell subtype proportion analysis on liver non-parenchymal cells.

Main Results:

  • Prenatal vitamin D deficiency led to increased liver histopathological changes.
  • Significant alterations were observed in the gene expression profile of the adult liver.
  • Non-parenchymal liver cells, including macrophages, endothelial cells, and dendritic cells, were affected.

Conclusions:

  • Prenatal vitamin D deficiency establishes a long-term memory in the adult liver.
  • These alterations in liver development and cell composition may contribute to offspring health risks.
  • Highlights the critical role of maternal vitamin D status in offspring metabolic health.