Insulin-degrading enzyme haplotypes affect insulin levels but not dementia risk

Lauren Marlowe, Rita Peila, Kelly Suzanne Benke, John Hardy, Lon R. White, Lenore J. Launer, Amanda J Myers

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Background: Insulin-degrading enzyme (IDE) polymorphism is hypothesized to regulate insulin levels as well as processes involved in neuronal compromise found in dementia. Methods: We examined the association of IDE haplotypes with dementia and insulin levels in a single well-characterized cohort of Japanese-American men born between 1900 and 1919 and followed since 1965. In 1991, a fasting insulin was obtained; dementia cases were ascertained in 1991 and 1994 in a multi-stage procedure, diagnoses were made according to international guidelines. Five single-nucleotide polymorphisms were genotyped and used for haplotype analysis in a sample of 179 Alzheimer's disease cases, 104 vascular dementia cases and 516 controls nested in the total cohort. Results: The global test for the haplotype effect on insulin levels was significant (p < 0.0001), adjusting for age, education, apolipoprotein ε4 status and fasting glucose. Conclusion: There was no association of IDE haplotypes with the risk of dementia. This study suggests IDE may be indirectly related to dementia via its regulation of insulin levels, but it is not a major gene for Alzheimer's.

Original languageEnglish
Pages (from-to)320-326
Number of pages7
JournalNeurodegenerative Diseases
Volume3
Issue number6
DOIs
StatePublished - Jan 1 2007
Externally publishedYes

Fingerprint

Insulysin
Haplotypes
Dementia
Insulin
Fasting
Vascular Dementia
Asian Americans
Apolipoproteins
Single Nucleotide Polymorphism
Alzheimer Disease
Guidelines
Education
Glucose
Genes

Keywords

  • Alzheimer's disease
  • Epidemiology
  • IDE
  • Insulin

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology

Cite this

Marlowe, L., Peila, R., Benke, K. S., Hardy, J., White, L. R., Launer, L. J., & Myers, A. J. (2007). Insulin-degrading enzyme haplotypes affect insulin levels but not dementia risk. Neurodegenerative Diseases, 3(6), 320-326. https://doi.org/10.1159/000097300

Insulin-degrading enzyme haplotypes affect insulin levels but not dementia risk. / Marlowe, Lauren; Peila, Rita; Benke, Kelly Suzanne; Hardy, John; White, Lon R.; Launer, Lenore J.; Myers, Amanda J.

In: Neurodegenerative Diseases, Vol. 3, No. 6, 01.01.2007, p. 320-326.

Research output: Contribution to journalArticle

Marlowe, L, Peila, R, Benke, KS, Hardy, J, White, LR, Launer, LJ & Myers, AJ 2007, 'Insulin-degrading enzyme haplotypes affect insulin levels but not dementia risk', Neurodegenerative Diseases, vol. 3, no. 6, pp. 320-326. https://doi.org/10.1159/000097300
Marlowe L, Peila R, Benke KS, Hardy J, White LR, Launer LJ et al. Insulin-degrading enzyme haplotypes affect insulin levels but not dementia risk. Neurodegenerative Diseases. 2007 Jan 1;3(6):320-326. https://doi.org/10.1159/000097300
Marlowe, Lauren ; Peila, Rita ; Benke, Kelly Suzanne ; Hardy, John ; White, Lon R. ; Launer, Lenore J. ; Myers, Amanda J. / Insulin-degrading enzyme haplotypes affect insulin levels but not dementia risk. In: Neurodegenerative Diseases. 2007 ; Vol. 3, No. 6. pp. 320-326.
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