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June 7, 2026Diabetes

At 5 days, hyperglycemia reduced inter-island heterogeneity relative to normoglycemia (trimmed CV_strain: 0.21 vs 0.63; trimmed CV_RMS: 0.11 vs 0.39), but by 15 and 23 days, variability between groups was comparable.

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Why the study?

Does sustained hyperglycemia alter endothelial mechanical organization over time in Human Umbilical Vein Endothelial Cells?

Population

Human Umbilical Vein Endothelial Cells (HUVECs)

Comparison

Clinically relevant hyperglycemic conditions for… vs Normoglycemic conditions (5 mM)

Design

Preclinical

Follow-up

Up to 23 days

Authors

SSSTEPHEN SCHELLER

Discussion

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Overview

Early exposure to clinically relevant hyperglycemia promotes coordinated mechanical behavior in endothelial cells, suggesting altered mechanical organization is an underrecognized feature of endothelial dysfunction in diabetes.

Key Points

  • This research aims to determine how prolonged hyperglycemia affects endothelial mechanical organization over time.
  • Human umbilical vein endothelial cells were cultured under normoglycemic and hyperglycemic conditions for various durations of 5 to 23 days.
  • Cells were micropatterned on polyacrylamide substrates and imaged using traction force microscopy and monolayer stress microscopy.
  • Mechanical coordination and inter-island heterogeneity were evaluated through RMS traction and strain energy.
  • At 5 days, hyperglycemia enhanced mechanical coordination, indicated by reduced inter-island heterogeneity (CV_strain: 0.21 vs 0.63).
  • At 8 days, heterogeneity modestly increased under hyperglycemia (CV_strain: 1.05 vs 0.64).
  • By 15 and 23 days, the level of variability between groups was comparable, showing no uniform destabilization.

Structured PICO

Does sustained hyperglycemia alter endothelial mechanical organization over time in Human Umbilical Vein Endothelial Cells?

P
Population
Human Umbilical Vein Endothelial Cells (HUVECs)
I
Intervention
Clinically relevant hyperglycemic conditions (13.9 mM) for 5, 8, 15, and 23 days
C
Comparator
Normoglycemic conditions (5 mM)
O
Outcome
Endothelial force organization (root mean square traction, strain energy, and inter-island heterogeneity)surrogate

Early exposure to clinically relevant hyperglycemia promotes coordinated mechanical behavior in endothelial cells, suggesting altered mechanical organization is an underrecognized feature of endothelial dysfunction in diabetes.

Cite This Study

STEPHEN SCHELLER (2026) studied this question.

synapsesocial.com/papers/6a250c1c7def13d035e1c220https://doi.org/10.2337/db26-2709-lb
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