Role of Inflammatory Markers in Elderly Type 2 Diabetic Patients with Mild Cognitive Impairment

Salwa S Hosny1, Ahmed M Bahaaeldin1, Mohamed S Khater2

  • 1Department of Internal Medicine and Endocrinology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.

Abstract

Insights

Elderly individuals with type 2 diabetes and mild cognitive impairment show elevated levels of soluble vascular adhesion molecule (sVCAM-1) and highly sensitive C-reactive protein (hs-CRP). These markers indicate increased inflammation and may contribute to cognitive decline in this population.

Area of Science:

  • Endocrinology
  • Neurology
  • Immunology

Background:

  • Type 2 diabetes (T2DM) is a known risk factor for Alzheimer's disease and mild cognitive impairment (MCI).
  • The exact causes of cognitive impairment in T2DM patients are unclear, but factors like chronic hyperglycemia, microvascular disease, and inflammation are implicated.

Purpose of the Study:

  • To investigate serum levels of soluble vascular adhesion molecule (sVCAM-1) and highly sensitive C-reactive protein (hs-CRP).
  • To compare these levels in elderly T2DM patients with and without MCI, and with healthy controls.

Main Methods:

  • A study involving 90 elderly subjects (≥60 years) divided into three groups: T2DM with MCI, T2DM without cognitive impairment, and healthy controls.
  • Participants underwent clinical evaluation, cognitive assessment (ACE-III), and laboratory tests including glucose, HbA1c, lipid profile, and inflammatory markers (sVCAM-1, hs-CRP).

Main Results:

  • Serum sVCAM-1 levels were significantly higher in T2DM patients with MCI compared to T2DM patients without MCI and controls (P=0.002).
  • Serum hs-CRP levels were also significantly elevated in T2DM patients with MCI compared to the other two groups (P=0.005).

Conclusions:

  • Elderly T2DM patients with MCI exhibit higher concentrations of soluble adhesion molecules and markers of low-grade systemic inflammation.
  • These findings suggest a link between inflammation, vascular adhesion molecules, and cognitive impairment in type 2 diabetes.

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