Abstract | INTRODUCTION: RESEARCH DESIGN AND METHODS: Two prospective case-control induced hypoglycemia studies were compared: study 1, hypoglycemic clamp to 2.8 mmol/L (50 mg/dL) for 1 hour in 17 subjects (T2D (n=10), controls (n=7)); study 2, hypoglycemic clamp to 2.0 mmol/L (36 mg/dL) undertaken transiently and reversed in 46 subjects (T2D (n=23), controls (n=23)). Blood sampling at baseline, hypoglycemia and 24-hour post- hypoglycemia, with proteomic analysis of amyloid-related proteins performed. RESULTS: In control subjects, the percentage change from baseline to hypoglycemia differed between study 1 and study 2 for 5 of 11 proteins in the AD-related panel: serum amyloid A1 (SAA1) (p=0.009), pappalysin (PAPPA) (p=0.002), apolipoprotein E2 (p=0.02), apolipoprotein E3 (p=0.03) and apolipoprotein E4 (p=0.02). In controls, the percentage change from baseline to 24 hours differed between studies for two proteins: SAA1 (p=0.003) and PAPPA (p=0.004); however, after Bonferroni correction only SAA1 and PAPPA remain significant. In T2D, there were no differential protein changes between the studies. CONCLUSIONS: The differential changes in AD-related proteins were seen only in control subjects in response to iatrogenic induction of hypoglycemic insults of differing length and severity and may reflect a protective response that was absent in subjects with T2D. Milder prolonged hypoglycemia caused greater AD-related protein changes than severe acute hypoglycemia in control subjects. TRIAL REGISTRATION NUMBERS: NCT02205996, NCT03102801.
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Authors | Abu Saleh Md Moin, Hassan Kahal, Ahmed Al-Qaissi, Nitya Kumar, Thozhukat Sathyapalan, Stephen L Atkin, Alexandra E Butler |
Journal | BMJ open diabetes research & care
(BMJ Open Diabetes Res Care)
Vol. 9
Issue 1
(04 2021)
ISSN: 2052-4897 [Electronic] England |
PMID | 33931404
(Publication Type: Journal Article)
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Copyright | © Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. |
Topics |
- Dementia
- Diabetes Mellitus, Type 2
(complications)
- Humans
- Hypoglycemia
- Prospective Studies
- Proteomics
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