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High glucose levels decrease proliferation of cultured human fetal cells from placenta.

D M Nelson1, E M Curran

  • 1Department of Obstetrics and Gynecology, Jewish Hospital of St. Louis, MO 63110.

American Journal of Obstetrics and Gynecology
|December 1, 1989
PubMed
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High glucose levels significantly impact human placental cell proliferation in vitro. This suggests a potential mechanism for abnormal fetal development in pregnancies affected by diabetes.

Area of Science:

  • Reproductive biology
  • Cell biology
  • Endocrinology

Background:

  • Gestational diabetes mellitus (GDM) is associated with adverse pregnancy outcomes.
  • High maternal glucose levels can affect fetal development.
  • Placental cells play a crucial role in nutrient transport and fetal growth.

Purpose of the Study:

  • To investigate the in vitro effect of high glucose concentrations on human placental cell proliferation.
  • To determine if elevated glucose levels alter the growth rate and cell division of placental cells.

Main Methods:

  • Human placental cells were cultured in vitro.
  • Cells were exposed to varying concentrations of D-glucose (5.5, 11, and 22 mmol/L) for 3 and 7 days.
  • Cell proliferation was assessed using labeling index (autoradiography) and cell counting (Coulter counter).

Related Experiment Videos

  • Mannitol was used as an osmotic control.

    • Main Results:

    • Exposure to 11 mmol/L and 22 mmol/L D-glucose significantly altered the labeling index of placental cells after 3 and 7 days compared to control (5.5 mmol/L D-glucose).
    • A significant decrease in cell number was observed in cultures exposed to 22 mmol/L D-glucose at both 3 and 7 days.
    • Labeling indices were 89% and 84% of control at 3 days, and 84% and 70% of control at 7 days for 11 and 22 mmol/L D-glucose, respectively.

    Conclusions:

    • Short-term exposure to high glucose levels affects human placental cell proliferation in vitro.
    • Altered placental cell proliferation due to hyperglycemia may contribute to abnormal fetal development in diabetic pregnancies.
    • Further research is warranted to explore the implications for pregnancy outcomes in women with diabetes.