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Abstract #6307 Published in IGR 3-2

The relationship of nitric oxide, endothelin-1 and primary open-angle glaucoma

Xiaolong Z; Xinguang Y; Weinong W
Chinese Ophthalmic Research 2001; 19: 269-270


OBJECTIVE: To investigate the relationship of nitric oxide (NO), endothelin-1 (ET-1) and primary open-angle glaucoma (POAG). METHODS: The concentration of NO2-/NO3-, NOS and ET-1 in plasma (serum) of POAG and normal controls was detected by electrophotonomy and radioimmunoassay. The ratio of edge/optic nerve disc square (E/D) of POAG patients was determined by Humphery retinal analyzer. Their level of NO2-/NO3, NOS and ET-1 were analyzed. RESULTS: The level of NO in POAG patients was lower, but ET-1 was higher. The level of NO, ET-1 in the initial stage was significantly different from the middle and late stage of visual field loss in POAG patients. The E/D of POAG patients was negative in correlation with their level of NO, and was positive in correlation with their level of ET-1. CONCLUSIONS: Some factors might decrease NO, but increase ET-1 and reduce the blood supply to the optic nerve, leading to glaucomatous damage of the optic nerve. LA: Chinese

Dr Z. Xiaolong, Department of Ophthalmology, Hospital 371 of PLA, Xinxiang 453000, China


Classification:

1.3 Pathogenesis (Part of: 1 General aspects)



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