目的：检测新生血管性青光眼(NVG)患者房水和血清中血管内皮生长因子-A(VEGF-A)、血小板源性生长因子(PDGF)、色素上皮衍生因子(PEDF)的含量，并分析其意义。

方法：前瞻性临床研究。采用酶联免疫吸附法(ELISA)检测2015-12/2016-12在西京医院眼科住院的NVG患者23例及年龄相关性白内障患者23例房水及血清中VEGF-A、PDGF、PEDF的含量并定量分析。

结果：NVG患者房水中VEGF-A、PDGF的含量分别为1130.56±69.32、221.95±56.08ng/L，均显著高于年龄相关性白内障患者组(226.45±37.46、36.25±7.12ng/L)(均P<0.01)； NVG患者房水中PEDF的含量为195.69±42.00ng/L，低于年龄相关性白内障患者组(497.89±12.52ng/L)(P<0.01)； NVG组血清中VEGF-A、PDGF及PEDF的含量分别为226.45±37.46、29.57±6.31及13.24±1.76ng/L，均与年龄相关性白内障患者组(219±34.89、28.28±7.24、12.96±2.08ng/L)无差异(均P>0.05)。NVG患者房水中VEGF-A和PDGF含量呈正相关(r=0.502，P=0.015)，而VEGF-A与PEDF含量呈负相关(r=-0.480，P=0.020)。

结论：NVG患者房水中VEGF-A、PDGF的含量显著升高，而PEDF的含量显著降低，且VEGF-A的含量与PDGF含量呈正相关、与PEDF含量呈负相关。联合使用VEGF-A、PDGF抑制剂及PEDF可能为NVG治疗提供新的思路。

METHODS: Prospectively clinical study. This study involved 23 eyes of 23 patients with advanced NVG and 23 control subjects with age related cataract. Protein concentrations of VEGF-A, PDGF and PEDF in aqueous humor and plasma were determined by enzyme-linked immunosorbent assay(ELISA)tests.

RESULTS: The VEGF-A and PDGF concentrations in aqueous humor from NVG patients were(1130.56±69.32)ng/L and(221.95±56.08)ng/L, respectively. Both of them were significantly higher than control subject(226.45±37.46)ng/L,(36.25±7.12)ng/L(P<0.01). Aqueous PEDF was significantly lower in the NVG group(195.69±42.00)ng/L than that in controls(497.89±12.52)ng/L(P<0.01). However, levels of VEGF-A, PDGF and PEDF in the serum of NVG were(226.45±37.46)ng/L,(29.57±6.31)ng/L and(13.24±1.76)ng/L, respectively, which were similar with control subjects(219±34.89)ng/L,(28.28±7.24)ng/L and(12.96±2.08)ng/L(P>0.05). The concentrations of VEGF-A were closely positive correlated with levels of PDGF in the aqueous humor of patients with NVG(r=0.502, P=0.015). However, the concentrations of VEGF-A were closely negative correlated with levels of PEDF in the aqueous humor of patients with NVG(r=-0.480, P=0.020).

CONCLUSION: There were higher levels of VEGF-A and PDGF, and lower level of PEDF in the aqueous humor of patients with NVG. There was a positive correlation between VEGF-A and PDGF, a negative correlation between VEGF-A and PEDF. The combination of anti-VEGF agent, PDGF inhibitor and PEDF may provide a new idea for the treatment of NVG.