Statin use and cognitive function in middle-aged adults with type 1 diabetes

doi:10.4239/wjd.v8.i6.286

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Jun 15, 2017 (publication date) through Mar 8, 2026

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World Journal of Diabetes

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Observational Study

World J Diabetes. Jun 15, 2017; 8(6): 286-296
Published online Jun 15, 2017. doi: 10.4239/wjd.v8.i6.286

Statin use and cognitive function in middle-aged adults with type 1 diabetes

Karen A Nunley, Trevor J Orchard, Christopher M Ryan, Rachel Miller, Tina Costacou, Caterina Rosano

Karen A Nunley, Trevor J Orchard, Christopher M Ryan, Rachel Miller, Tina Costacou, Caterina Rosano, Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA 15213, United States

Author contributions: Nunley KA, Orchard TJ, Costacou T and Rosano C contributed to study conception and design; Nunley KA, Ryan CM, Miller R and Costacou T contributed to data acquisition, analysis, and interpretation; Nunley KA, Orchard TJ, Ryan CM, Miller R, Costacou T and Rosano C contributed to writing, editing, reviewing, and final approval of manuscript.

Supported by National Institutes of Health (NIH) National Institute of Diabetes and Digestive and Kidney Disorders (NIDDK) grants, Nos. R01 DK089028, PI (to Rosano C); R37 DK034818-25, PI (to Orchard TJ); and R21 DK082900, PI (to Costacou T).

Institutional review board statement: The study was reviewed and approved by the University of Pittsburgh Institutional Review Board.

Informed consent statement: All study participants provided informed written consent prior to study enrollment.

Conflict-of-interest statement: No authors report a conflict of interest.

Data sharing statement: No additional data are available.

Correspondence to: Karen A Nunley, PhD, MS, Visiting Assistant Research Professor, Department of Epidemiology, University of Pittsburgh, 5138 South Parran Hall, 130 N De Soto St., Pittsburgh, PA 15213, United States. kan62@pitt.edu

Telephone: +1-412-3833913 Fax: +1-412-6247397

Received: November 4, 2016
Peer-review started: November 6, 2016
First decision: November 30, 2016
Revised: February 17, 2017
Accepted: May 3, 2017
Article in press: May 5, 2017
Published online: June 15, 2017
Processing time: 222 Days and 22.6 Hours

Core Tip

Core tip: Animal and cell culture studies show that statins can damage cerebral gray and white matter, thereby affecting cognitive function. Findings from human studies remain controversial; early observational studies reported that statin use negatively affected cognition, especially memory, while more recent studies have not replicated these findings. Even though statins are widely prescribed for people with type 1 diabetes (T1D), only one study to date has examined whether statin use is related to cognitive impairment in this patient population. We propose that deleterious effects statins may exert on cognition may be more pronounced in people with T1D, as these individuals are already at an increased risk of cognitive impairment due to long-term exposure to metabolic dysregulation.