title: The change of circulating insulin like growth factor binding protein 7 levels may correlate with postoperative cognitive dysfunction.
abstract: Insulin-like growth factor binding protein (IGFBP) 7 may be a critical regulator of memory consolidation. This study was performed to assess the relationship between circulating IGFBP7 levels and postoperative cognition dysfunction (POCD) in patients scheduled for elective head and neck carcinoma surgery under general anesthesia. Among one hundred and two patients included in this study, forty-four patients completed collection of all four blood samples and thirty-five patients were diagnosed with POCD. The results of Mini-Mental State Examination (MMSE) test and enzyme-linked immunosorbent assay showed that postoperative MMSE score and circulating insulin-like growth factor (IGF)-1 level were lower and circulating IGFBP7 level was higher than preoperative level. Circulating IGF-1 level was significantly lower and D-value of preoperative and postoperative day 1 circulating IGFBP7 levels (ΔIGFBP7(1)) was significantly higher in the POCD group. Age preoperative MMSE, IGF-1 level and ΔIGFBP7(1) significantly correlated with POCD, but preoperative IGFBP7 level not. Logistic regression analysis revealed that older patients, lower preoperative MMSE score, IGF-1 level and higher IGFBP7 level significantly increased the risk of POCD, but ΔIGFBP7(1) not. Hence, circulating IGF-1 and IGFBP7 levels and their changes during operation under general anesthesia may correlate with POCD, but further investigation in larger samples is needed.
authors.affiliation: Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road 639, Shanghai 200011, China.
authors.forename: Jue
authors.initials: J
authors.lastname: Jiang
authors.affiliation: Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road 639, Shanghai 200011, China.
authors.forename: Zhifeng
authors.initials: Z
authors.lastname: Chen
authors.affiliation: Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road 639, Shanghai 200011, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Liang
authors.affiliation: Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road 639, Shanghai 200011, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Yan
authors.affiliation: Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road 639, Shanghai 200011, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road 639, Shanghai 200011, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
authors.affiliation: Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road 639, Shanghai 200011, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road 639, Shanghai 200011, China. Electronic address: dr_jianghong@163.com.
authors.forename: Hong
authors.initials: H
authors.lastname: Jiang
mesh_terms: D000368:Aged; D000768:Anesthesia, General / Q000009:adverse effects; D016022:Case-Control Studies; D003072:Cognition Disorders / Q000097:blood*; D005260:Female; D006258:Head and Neck Neoplasms / Q000601:surgery; D006801:Humans; D018969:Insulin-Like Growth Factor Binding Proteins / Q000097:blood*; D007334:Insulin-Like Growth Factor I / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000097:blood*
chemical_list: D018969:Insulin-Like Growth Factor Binding Proteins; C102529:insulin-like growth factor binding protein-related protein 1; D007334:Insulin-Like Growth Factor I
keywords: General anesthesia; Insulin-like growth factor binding protein 7; Insulin-like growth factor-1; Postoperative cognition dysfunction