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Featured Article :. Haptoglobin 1-1 Genotype is Associated With Poorer Cognitive Functioning in the Elderly With Type 2 Diabetes.

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Featured Article :

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  1. Featured Article: Haptoglobin 1-1 Genotype is Associated With Poorer Cognitive Functioning in the Elderly With Type 2 Diabetes Ramit Ravona-Springer, M.D., Anthony Heymann, M.D., James Schmeidler, P.H.D., Elizabeth Guerrero-Berroa, P.H.D., Mary Sano, P.H.D., Rachel Preiss, B.A., Keren Koifman, B.A., Hadas Hoffman, B.A., Andrew Levy, M.D., Jeremy M. Silverman, P.H.D., Michal Schnaider-Beeri Diabetes Care Volume 36: 3139-3145 October, 2013

  2. STUDY OBJECTIVE • Haptoglobin (Hp) genotype (Hp 1-1, 1-2, or 2-2) is associated with risk for type 2 diabetes complications • Its relationship with cognitive compromise is rarely studied • We studied whether Hp genotype is associated with cognitive function in cognitively normal elderly diabetic subjects Ravona-Springer R. et al. Diabetes Care 2013;36:3139-3145

  3. STUDY DESIGN AND METHODS • Relationships of Hp genotype with episodic memory, semantic categorization, attention/working memory and executive function, and an overall cognitive score were examined • Subjects were from the Israel Diabetes and Cognitive Decline (IDCD) study Ravona-Springer R. et al. Diabetes Care 2013;36:3139-3145

  4. Ravona-Springer R. et al. Diabetes Care 2013;36:3139-3145

  5. RESULTS • 812 subjects participated (84 with Hp 1-1, 335 with Hp 1-2, and 393 with Hp 2-2 genotypes) • Compared with Hp 1-2 and Hp 2-2 genotype subjects, Hp 1-1 subjects performed significantly worse in semantic categorization and the overall cognitive score • Contribution of cardiovascular risk factors to cognition was significantly higher in subjects with the Hp 1-1 genotype compared with the Hp 1-2 and Hp 2-2 genotypes in the semantic categorization and attention/working memory cognitive domains Ravona-Springer R. et al. Diabetes Care 2013;36:3139-3145

  6. Ravona-Springer R. et al. Diabetes Care 2013;36:3139-3145

  7. CONCLUSIONS • Compared with Hp 2 carriers, individuals with the Hp 1-1 genotype present lower cognitive performance • Stronger relationships between cardiovascular risk factors and cognition in the latter group may suggest an underlying vascular mechanism Ravona-Springer R. et al. Diabetes Care 2013;36:3139-3145

  8. Ravona-Springer R. et al. Diabetes Care 2013;36:3139-3145

  9. Ravona-Springer R. et al. Diabetes Care 2013;36:3139-3145

  10. Ravona-Springer R. et al. Diabetes Care 2013;36:3139-3145

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