Predictive value of serum d-serine level for hearing impairment in uremic patients

Objective To investigate the predictive value of serum d-serine level for hearing impairment (HI) in uremic patients. Methods In this study, 30 uremic patients with HI and 30 with normal hearing were selected. The basic conditions, biochemical indicators, and serum serine levels of the two groups were compared to analyze the influencing factors of HI. Results The age and d-serine levels were higher in the HI group, while the l-serine level was lower than uremia in the normal hearing group. Logistic regression analysis showed that d-serine level >= 10 mu M and older age increased the risk of HI. The area of the receiver operating characteristic (ROC) curve drawn by the prediction probability of HI was 0.838, indicating that age, d-serine, and l-serine had predictive diagnostic values for HI (p < .001). Among these, the ROC curve area of d-serine in predicting HI in uremic patients was 0.822 (p < .001). Conclusions Increased d-serine and age are two risk factors for HI, while l-serine is a protective factor. d-Serine level has a predictive value for HI in uremic patients. Uremic patients are recommended hearing assessment, estimation of d-serine levels, and early intervention.

Automated summary

The objective of this study was to investigate the predictive value of serum d-serine level for hearing impairment (HI) in uremic patients. Comparisons were made between two groups in terms of basic conditions, biochemical indicators, and serum serine levels to analyze the influencing factors of HI. The results showed that increased d-serine level and older age were risk factors for HI, while l-serine was a protective factor. The d-serine level had a predictive value for HI in uremic patients. The study recommends hearing assessment and estimation of d-serine levels for uremic patients along with early intervention.