Melatonin concentrations in serum of primary glaucoma patients
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Xing-Huai Sun. Department of Ophthalmology, Eye & Ent Hospital of Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai 200031, China. xhsun@shmu.edu.cn

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    Abstract:

    AIM: To determine whether glaucoma patients exhibit an abnormal melatonin concentration in serum and the effects of psychiatric disorders caused by glaucoma in melatonin secretion. METHODS: A sample of 80 primary angle-closure glaucoma (PACG) patients, 120 primary open angle glaucoma (POAG) patients, and 120 normal controls were enrolled in this study. All the participants were asked to complete the following questionnaires: Pittsburgh sleep quality index (PSQI), self-rating anxiety scale (SAS), and self-rating depression scale (SDS). Variance analysis was used to compare the subscores between the groups. After that, we chose 58 patients with primary glaucoma and 20 non-glaucoma control patients to collect their serum samples at 7-10 a.m. Serum melatonin levels were measured using enzyme linked immunosorbent assay (ELISA). RESULTS: Of all participants, the scores of PSQI, SAS, and SDS in PACG and POAG group were 9.38±0.40, 46.08±8.99, 51.11±10.72 and 7.43±0.35, 45.42±9.87, 49.04±12.24 respectively, significantly higher than those in control group (4.16±0.28, 35.49±9.18, 40.31±13.08). The serum melatonin levels in PACG (37.29±2.99 pg/mL) and POAG (35.97±3.64 pg/mL) were significantly higher than the controls (29.96±3.94 pg/mL) (P<0.001). But no difference was found between the PACG and POAG (P=0.216). Glaucoma patients with sleep disorders, anxiety and depression were more likely resulting in the increase of melatonin levels. CONCLUSION: There is a significant increase in serum melatonin levels in glaucoma patients compared to the controls especially in glaucoma patients with psychiatric disorders such as sleep disorders, anxiety and depression.

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Xiao-Ping Ma, Man-Yi Shen, Guang-Lin Shen, et al. Melatonin concentrations in serum of primary glaucoma patients. Int J Ophthalmol, 2018,11(8):1337-1341

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Publication History
  • Received:March 25,2017
  • Revised:June 07,2018
  • Adopted:
  • Online: August 07,2018
  • Published: