Tianjin Medical Journal ›› 2022, Vol. 50 ›› Issue (10): 1088-1092.doi: 10.11958/20220022

• Clinical Research • Previous Articles     Next Articles

The serum expression level and clinical significance of Apelin13 and FKBP5 in patients with Alzheimer's disease

YAN Chunxiao1(), LI Peiyue2,(), ZHENG Qimi1, ZOU Xiao1, LI Jianbo3   

  1. 1 Department of Nursing, Dazhou Vocational and Technical College, Dazhou 635000, China
    2 Department of Geriatrics, Dazhou Central Hospital
    3. Department of Geriatrics, the Affiliated Hospital of Dazhou Vocational and Technical College
  • Received:2022-01-04 Revised:2022-03-04 Published:2022-10-15 Online:2022-10-20
  • Contact: LI Peiyue E-mail:mcx5632541@163.com;2776237298@qq.com

Abstract:

Objective To investigate the serum expression level and clinical significance of Apelin13 and FK506 binding protein 51 (FKBP5) in patients with Alzheimer's disease (AD). Methods A total of 93 AD patients were selected (the AD group), and 90 healthy subjects of the same age for physical examination were selected as the control group. The serum levels of Apelin13 and FKBP5 mRNA were compared between the groups. The correlation between Apelin13, FKBP5 mRNA and Mini-mental State Examination (MMSE) score was analyzed by Pearson correlation analysis. Receiver operating characteristic (ROC) curve was used to evaluate the diagnostic value of Apelin13 and FKBP5 mRNA for severe cognitive impairment in AD patients. Results The serum level of Apelin13 and MMSE scores were significantly lower in the AD group than those in the control group, while the level of FKBP5 mRNA was significantly higher in the AD group than that in the control group (P<0.01). The serum levels of Apelin13 decreased sequentially in patients with mild, moderate and severe AD, while levels of FKBP5 mRNA increased sequentially (all P<0.05). Binary Logistic regression analysis showed that higher MMSE score and Apelin13 were protective factors for AD, while higher FKBP5 mRNA was a risk factor for the development of AD (all P<0.05). MMSE score was negatively correlated with the serum level of FKBP5 mRNA and positively correlated with the level of Apelin13 in AD patients (all P<0.05). ROC curve showed that the AUC value [0.884 (0.808-0.961)] of Apelin13 combined with FKBP5 mRNA was significantly higher than that of Apelin13 or FKBP5 mRNA [0.776 (0.673-0.879) or 0.801 (0.699-0.902)], and the sensitivity and specificity of combined diagnosis were 81.25 and 86.89, respectively (all P<0.05). Conclusion The serum level of Apelin13 is decreased in AD patients, while FKBP5 mRNA is increased. Apelin13 combined with FKBP5 mRNA has good diagnostic efficacy for severe cognitive impairment in AD patients.

Key words: Alzheimer disease, cognition disorders, Tacrolimus binding proteins, ROC curve, early diagnosis, Apelin13, FK506 binding protein 51

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