The retinae of 137 patients were examined ophthalmologically and for visual acuity at diagnosis of noninsulin dependent diabetes and again in 1982 and 1983, approximately 7 and 8 years later, when colour photographs were also taken. In 1983, 46% were without detectable retinopathy, 32% had haemorrhages (including microaneurysms) only, 4% exudates alone and 18% both lesions. Those with haemorrhages were more hyperglycaemic than those without retinopathy and those with exudates only. Indeed, those with exudates alone had lower mean glucose levels than those without retinopathy (p<0.05). Patients with exudates (± haemorrhages) had a lower percentage of the fatty acids of plasma cholesterol esters as linoleate than those without (p<0.05) but this did not hold for those developing haemorrhages. Different risk factors appear to operate in different features of diabetic retinophathy. In some respects exudate formation may be more akin to macro than to micro angiopathy. 相似文献
目的研究增生性糖尿病视网膜病变(PDR)患者房水中血管内皮生长因子(VEGF)与白介素6(IL-6)、白介素18(IL-18)水平的差异,并探讨其之间的相关性。方法分析2013年1月至2014年6月75例我院收治的75例行白内障超声乳化手术的II型糖尿病患者的临床资料,观察组(39例)为PDP患者,对照组(36例)选取无糖尿病视网膜病变的患者。结果两组研究对象血清中总胆固醇( TC)、甘油三酯( TG)、高密度脂蛋白( HDL-c)、低密度脂蛋白(LDL-c)水平均无统计学差异( P >0.05),观察组患者血中糖化血红蛋白(HbA1c)水平明显高于对照组,差异具有统计学意义( t =2.449, P <0.05);观察组患者房水中IL-6( t =16.14, P <0.001)、IL-18( t =16.08, P <0.001)及VEGF( t =5.361, P <0.001)水平明显高于对照组,差异具有统计学意义( P <0.05);观察组患者VEGF与IL-6( r =0.815, P <0.001)、IL-18( r =0.869, P <0.001)及HbA1c( r =0.694, P <0.001)均呈现显著正相关。结论 VEGF、IL-6、IL-18、HbA1c在PDR的发生机制中起到了重要的作用,临床上可以用来作为治疗PDR患者的诊断参考指标。 相似文献