PMID- 28146431 OWN - NLM STAT- MEDLINE DCOM- 20171004 LR - 20221207 IS - 1949-2553 (Electronic) IS - 1949-2553 (Linking) VI - 8 IP - 9 DP - 2017 Feb 28 TI - Association of plasma ghrelin levels and ghrelin rs4684677 polymorphism with mild cognitive impairment in type 2 diabetic patients. PG - 15126-15135 LID - 10.18632/oncotarget.14852 [doi] AB - BACKGROUND AND AIMS: People with insulin resistance and type 2 diabetes mellitus (T2DM) are at increased risks of cognitive impairment. We aimed to investigate the association of plasma ghrelin levels and ghrelin rs4684677 polymorphism with mild cognitive impairment (MCI) in T2DM patients. RESULTS: In addition to elevated glycosylated hemoglobin (HbA1c), fasting blood glucose (FBG) and homeostasis model assessment of insulin resistance (HOMA-IR), T2DM patients with MCI had decreased plasma ghrelin levels compared with their healthy-cognition subjects (all p < 0.05). Further logistic regression analysis showed that ghrelin level was one of independent factors for MCI in T2DM patients (p < 0.05). Moreover, partial correlation analysis demonstrated that ghrelin levels were positively associated with the scores of Montreal Cognitive Assessment (r = 0.196, p = 0.041) and Auditory Verbal Learning Test-delayed recall (r = 0.197, p = 0.040) after adjustment for HbA1c, FBG and HOMA-IR, wherein the latter represented episodic memory functions. No significant differences were found for the distributions of genotype and allele of ghrelin rs4684677 polymorphism between MCI and control group. MATERIALS AND METHODS: A total of 218 T2DM patients, with 112 patients who satisfied the MCI diagnostic criteria and 106 who exhibited healthy cognition, were enrolled in this study. Demographic characteristics, clinical variables and cognitive performances were extensively assessed. Plasma ghrelin levels and ghrelin rs4684677 polymorphism were also determined. CONCLUSIONS: Our results suggest that decreased ghrelin levels are associated with MCI, especially with episodic memory dysfunction in T2DM populations. FAU - Huang, Rong AU - Huang R AD - Department of Endocrinology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, PR China, 210009. AD - Medical School of Southeast University, Nanjing, PR China, 210009. FAU - Han, Jing AU - Han J AD - Department of Endocrinology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, PR China, 210009. FAU - Tian, Sai AU - Tian S AD - Department of Endocrinology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, PR China, 210009. FAU - Cai, Rongrong AU - Cai R AD - Department of Endocrinology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, PR China, 210009. FAU - Sun, Jie AU - Sun J AD - Department of Endocrinology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, PR China, 210009. FAU - Shen, Yanjue AU - Shen Y AD - Department of Endocrinology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, PR China, 210009. FAU - Wang, Shaohua AU - Wang S AD - Department of Endocrinology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, PR China, 210009. LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - Oncotarget JT - Oncotarget JID - 101532965 RN - 0 (Biomarkers) RN - 0 (Ghrelin) RN - 0 (Glycated Hemoglobin A) SB - IM MH - Adult MH - Aged MH - Biomarkers/*analysis MH - Case-Control Studies MH - Cognitive Dysfunction/blood/*diagnosis/etiology MH - Diabetes Mellitus, Type 2/*complications MH - Female MH - Follow-Up Studies MH - Genotype MH - Ghrelin/*blood/*genetics MH - Glycated Hemoglobin/analysis MH - Humans MH - Insulin Resistance MH - Male MH - Middle Aged MH - Polymorphism, Genetic/*genetics MH - Prognosis PMC - PMC5362472 OTO - NOTNLM OT - ghrelin OT - mild cognitive impairment OT - polymorphism OT - type 2 diabetes mellitus COIS- CONFLICTS OF INTEREST All authors declare that there are no conflicts of interest. EDAT- 2017/02/02 06:00 MHDA- 2017/10/05 06:00 PMCR- 2017/02/28 CRDT- 2017/02/02 06:00 PHST- 2016/07/29 00:00 [received] PHST- 2017/01/16 00:00 [accepted] PHST- 2017/02/02 06:00 [pubmed] PHST- 2017/10/05 06:00 [medline] PHST- 2017/02/02 06:00 [entrez] PHST- 2017/02/28 00:00 [pmc-release] AID - 14852 [pii] AID - 10.18632/oncotarget.14852 [doi] PST - ppublish SO - Oncotarget. 2017 Feb 28;8(9):15126-15135. doi: 10.18632/oncotarget.14852.