PMID- 21729993 OWN - NLM STAT- MEDLINE DCOM- 20120627 LR - 20131121 IS - 1752-8976 (Electronic) IS - 1470-3203 (Linking) VI - 13 IP - 1 DP - 2012 Mar TI - Improvement of cognitive impairment in female type 2 diabetes mellitus mice by spironolactone. PG - 84-90 LID - 10.1177/1470320311412810 [doi] AB - Patients with type 2 diabetes mellitus (T2DM) exhibit more severe cognitive decline in females compared with males; however, the preventive approach to this gender-specific cognitive decline is still an enigma. Spironolactone is a potassium-sparing diuretic that also acts as an androgen receptor antagonist. Here, we investigated whether spironolactone attenuates cognitive impairment observed in female T2DM mice. Adult wild-type (WT) mice and an obese T2DM model, KKAy mice, were employed in this study. Cognitive function was evaluated by the shuttle avoidance test and Morris water maze test. Administration of spironolactone (50 mg/kg per day in chow) had no significant effect on blood pressure, glucose tolerance or insulin resistance. In WT mice, no significant sex difference in cognitive function was observed; however, treatment with spironolactone improved spatial memory in the water maze, especially in female WT mice. Administration of spironolactone markedly improved the cognitive decline in female KKAy mice up to the level in male KKAy mice. Spironolactone treatment also improved cognitive function in ovariectomized-KKAy mice, but failed to improve it in those with administration of estradiol (200 microg/kg per day). In diabetic mice, spironolactone improved impaired cognitive function observed in female mice, suggesting that spironolactone may prevent cognitive impairment associated with diabetes in females clinically. FAU - Sakata, Akiko AU - Sakata A AD - Department of Molecular Cardiovascular Biology and Pharmacology, Ehime University, Graduate School of Medicine, Tohon, Ehime, Japan. FAU - Mogi, Masaki AU - Mogi M FAU - Iwanami, Jun AU - Iwanami J FAU - Tsukuda, Kana AU - Tsukuda K FAU - Min, Li-Juan AU - Min LJ FAU - Jing, Fei AU - Jing F FAU - Ohshima, Kousei AU - Ohshima K FAU - Ito, Masaharu AU - Ito M FAU - Horiuchi, Masatsugu AU - Horiuchi M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110705 PL - England TA - J Renin Angiotensin Aldosterone Syst JT - Journal of the renin-angiotensin-aldosterone system : JRAAS JID - 100971636 RN - 0 (Electrolytes) RN - 0 (Hormones) RN - 27O7W4T232 (Spironolactone) RN - 4TI98Z838E (Estradiol) SB - IM MH - Animals MH - Blood Pressure/drug effects MH - Body Weight/drug effects MH - Cognition Disorders/blood/*complications/*drug therapy/physiopathology MH - Diabetes Mellitus, Type 2/blood/*complications/*drug therapy/physiopathology MH - Electrolytes/blood MH - Estradiol/administration & dosage/pharmacology MH - Female MH - Hormones/blood MH - Male MH - Memory/drug effects MH - Mice MH - Organ Size/drug effects MH - Ovariectomy MH - Spironolactone/administration & dosage/pharmacology/*therapeutic use MH - Systole/drug effects EDAT- 2011/07/07 06:00 MHDA- 2012/06/28 06:00 CRDT- 2011/07/07 06:00 PHST- 2011/07/07 06:00 [entrez] PHST- 2011/07/07 06:00 [pubmed] PHST- 2012/06/28 06:00 [medline] AID - 1470320311412810 [pii] AID - 10.1177/1470320311412810 [doi] PST - ppublish SO - J Renin Angiotensin Aldosterone Syst. 2012 Mar;13(1):84-90. doi: 10.1177/1470320311412810. Epub 2011 Jul 5.