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新生血管性青光眼转化生长因子β_2含量及其相关影响因素 被引量:2
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作者 郭斌 范钦华 +3 位作者 陈倩 张志强 左晶 李运明 《临床眼科杂志》 2011年第2期122-126,共5页
目的观察新生血管性青光眼(NVG)眼内房水和玻璃体液中转化生长因子(TGF)-β2总量和活化含量,并分析其相关影响因素。方法前瞻性研究NVG患者54例(54只眼)房水和玻璃体液中总TGF-β2(tTGF-β2)和活化TGF-β2(aTGF-β2)含量,其中视网膜中... 目的观察新生血管性青光眼(NVG)眼内房水和玻璃体液中转化生长因子(TGF)-β2总量和活化含量,并分析其相关影响因素。方法前瞻性研究NVG患者54例(54只眼)房水和玻璃体液中总TGF-β2(tTGF-β2)和活化TGF-β2(aTGF-β2)含量,其中视网膜中央静脉阻塞(CRVO)17只眼,糖尿病视网膜病变(DR)22只眼,视网膜血管炎(Eales)4只眼,视网膜脱离(RD)术后4只眼,未知原因(NA)7只眼。虹膜新生血管Ⅰ级17只眼,Ⅱ级12只眼,Ⅲ级13只眼,Ⅳ级12只眼。曾行视网膜光凝和/或冷凝治疗36只眼。10只新鲜健康角膜移植供体眼作为对照组。抽取房水和玻璃体液样本,采用酶联免疫吸附试验(ELISA)检测其中aTGF-β2含量,tTGF-β2酸化处理后进行检测。采用SPSS软件进行数据分析,NVG组和正常对照组TGF-β2总量和活化含量比较采用Mann-WhitneyU检验。不同原发病、不同等级虹膜新生血管、治疗视网膜光凝固法和/或冷冻视网膜固定术组与未治疗组之间tT-GF-β2和aTGF-β2含量分别比较采用方差分析、LSD-t检验和t检验。结果 NVG组房水中tTGF-β2和aTGF-β2含量分别为(3279.7±935.3)ng/L和(353.3±107.0)ng/L,玻璃体液中分别为(4386.9±1139.4)ng/L和(503.6±130.0)ng/L,均高于正常对照组细胞因子含量(P<0.01)。CRVO组在房水和玻璃体tTGF-β2含量高于NA(Z房水=-2.191,P=0.028;Z玻璃体=-2.509,P=0.012)。DR组房水和玻璃体液中tTGF-β2含量高于NA(Z房水=-2.293,P=0.022;Z玻璃体=-2.650,P=0.008)。Eales在玻璃体tTGF-β2含量高于NA(Z玻璃体=-2.079,P=0.038)。但在房水或玻璃体液中各组aTGF-β2含量差异没有统计学意义(P>0.05)。不同虹膜新生血管分级分组,房水和玻璃体液中aTGF-β2含量差异无统计学意义(P>0.05)。治疗组NVG眼房水tTGF-β2(3122.7±910.2 ng/L)和aTGF-β2(303.4±79.0 ng/L)以及玻璃体液tTGF-β2(4166.7±1157.3 ng/L)和aTGF-β2(444.0±93.4 ng/L)含量均低于未治疗组,差异具有统计学意义(P<0.05)。结论 NVG中tTGF-β2和aTGF-β2含量明显升高,tTGF-β2含量可能与原发病因有关,视网膜光凝和冷冻治疗可抑制NVG眼TGF-β2产生和活化。 展开更多
关键词 新生血管性 转化生长因子 新生血管化 光凝固法 冷冻视网膜固定术 治疗
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出生体重低于501g的婴儿的短期情况
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作者 Rieger- Fackeldey E. Schulze A. +1 位作者 Pohlandt F. 李开 《世界核心医学期刊文摘(儿科学分册)》 2005年第8期12-13,共2页
Aim: To report survival and morbidity until discharge in preterm infants < 50 1 g with life support started immediately after birth. Methods/study design: Coh ort study of all preterm infants with birthweights <... Aim: To report survival and morbidity until discharge in preterm infants < 50 1 g with life support started immediately after birth. Methods/study design: Coh ort study of all preterm infants with birthweights < 501 g born in three tertiary perinata l centres between 1 January 1998 and 31 December 2001 (gestational age (GA) 25.2 [21.0- 30.7] wk; birthweight 435 [290- 500] g; median [range]). Results: A to tal of 107 infants with birthweights < 501 g were born. Twenty- nine were still born. A prenatal decision to initiate life support immediately after birth was r eached in 9/37 (24% ) infants < 24.0 wk GA and in 39/42 (93% ) infants ≥ 24. 0 wk GA. Survival was 3/37 (8% ) and 26/41 (63% ) in infants < 24 wk GA and ≥ 24.0 wk GA, respectively. Twenty- nine of the 48 infants with immediate life support (60% ) survived (95% CI: 46- 75% ). Forty- two of these 48 (88% ) infants were small for gestational age. No infant without immediate life suppor t survived (0/30). Twenty- three (79% ) survivors developed chronic lung disea se (CLD) and eight (28% ) received photocoagulation for retinopathy of prematur ity (ROP). Conclusion: In this population of extremely low birthweight infants, survival was higher than in previous studies when life support was provided imme diately after birth. Short- term morbidity was similar to other studies. The pr esented data on survival support our concept to offer immediate life support aft er birth in preterm infants with birthweights< 501 g. The long- term outcome of these infants needs to be assessed urgently. 展开更多
关键词 生命支持 小于胎龄儿 出生后 视网膜疾病 光凝固法 慢性肺病 日至
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