Platelet function following induced hypoglycaemia in type 2 diabetes

H. Kahal, A. Aburima, B. Spurgeon, K. S. Wraith, A. S. Rigby, T. Sathyapalan, E. S. Kilpatrick, K. M. Naseem, S. L. Atkin

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Abstract

Aim: Strict glycaemic control has been associated with an increased mortality rate in subjects with type 2 diabetes (T2DM). Here we examined platelet function immediately and 24 hours following induced hypoglycaemia in people with type 2 diabetes compared to healthy age-matched controls. Methods: Hyperinsulinaemic clamps reduced blood glucose to 2.8 mmol/L (50 mg/dl) for 1 hour. Sampling at baseline; euglycaemia 5 mmol/L (90 mg/dl); hypoglycaemia; and at 24 post clamp were undertaken. Platelet function was measured by whole blood flow cytometry. Results: 10 subjects with T2DM and 8 controls were recruited. Platelets from people with T2DM showed reduced sensitivity to prostacyclin (PGI2, 1 nM) following hypoglycaemia. The ability of PGI2 to inhibit platelet activation was significantly impaired at 24 hours compared to baseline in the T2DM group. Here, inhibition of fibrinogen binding was 29.5% (10.3–43.8) compared to 50.8% (36.8–61.1), (P < 0.05), while inhibition of P-selectin expression was 32% (16.1–47.6) vs. 54.4% (42.5–67.5) (P < 0.05). No significant changes in platelet function were noted in controls. Conclusion: Induced hypoglycaemia in T2DM enhances platelet hyperactivity through impaired sensitivity to prostacyclin at 24 hours.

Original languageEnglish
Pages (from-to)431-436
Number of pages6
JournalDiabetes and Metabolism
Volume44
Issue number5
DOIs
Publication statusPublished - Nov 2018

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Keywords

  • Hypoglycaemia
  • Platelets
  • Type 2 diabetes

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Endocrinology

Cite this

Kahal, H., Aburima, A., Spurgeon, B., Wraith, K. S., Rigby, A. S., Sathyapalan, T., Kilpatrick, E. S., Naseem, K. M., & Atkin, S. L. (2018). Platelet function following induced hypoglycaemia in type 2 diabetes. Diabetes and Metabolism, 44(5), 431-436. https://doi.org/10.1016/j.diabet.2018.04.004