空军飞行员角膜内皮细胞的初步分析

Objegtive To preliminarily study the endothelial density baseline and the morphological characteristics of the corneal endothelial cell of Chinese Air Force pilot. Metheds Density and morphology of corneal endothelial cells were observed by Topcon-2000 noncontact specular microscope and analyzed by Imagenet 2000 software(version 2.53)on 56 pilots(112 eyes)While other 30 healthy men(60 eyes)who were with the comparable age and uncorrected visual acuity were compared and analyzed as the control group. Results The data showed that the average corneal endothelial cell density was 2797.0±330.3/mm2 in pilot group which was significantly lowet than 2917.57±318.04/mm2 in control group(t=2.286,P=0.024).The mean constituent ratio of hexagonal cell was 56.46±7.19 in pilot group compared with 60.33±7.68 in control group(t=8.253,P=O.001)and it was gradually reduced with the age growing in both groups(r=-0.395,-0.268,P=0.000.0.038).With the growing of flying hours the mean area of cell was increased under the eontrolled age factor according to partial correlation analysis(r=0.244,P=0.0 1).Conclusions Measuring of the corneaI endothelial cellular morphologic parameters and implementing corresponding analysis are helpful to know pilot's corneal endotheliurn changes in flight.     

空军飞行员角膜内皮细胞的初步分析

Objegtive To preliminarily study the endothelial density baseline and the morphological characteristics of the corneal endothelial cell of Chinese Air Force pilot. Metheds Density and morphology of corneal endothelial cells were observed by Topcon-2000 noncontact specular microscope and analyzed by Imagenet 2000 software(version 2.53)on 56 pilots(112 eyes)While other 30 healthy men(60 eyes)who were with the comparable age and uncorrected visual acuity were compared and analyzed as the control group. Results The data showed that the average corneal endothelial cell density was 2797.0±330.3/mm2 in pilot group which was significantly lowet than 2917.57±318.04/mm2 in control group(t=2.286,P=0.024).The mean constituent ratio of hexagonal cell was 56.46±7.19 in pilot group compared with 60.33±7.68 in control group(t=8.253,P=O.001)and it was gradually reduced with the age growing in both groups(r=-0.395,-0.268,P=0.000.0.038).With the growing of flying hours the mean area of cell was increased under the eontrolled age factor according to partial correlation analysis(r=0.244,P=0.0 1).Conclusions Measuring of the corneaI endothelial cellular morphologic parameters and implementing corresponding analysis are helpful to know pilot's corneal endotheliurn changes in flight.     

气囊仿生助产术在初产妇足月头位分娩中的应用观察

目的 探讨气囊仿生助产术在初产妇头位分娩中的应用效果.方法 选取2015年1月~2016年12月在本院产科住院分娩的初产妇1128例为研究对象,按产妇是否签字同意随机分为两组,对照组448例按自然分娩常规护理;观察组680例采用气囊仿生助产术"单扩法"助产,观察两组产妇的产程时间、分娩方式、会阴损伤情况、新生儿窒息和产后出血发生率并进行对比分析.结果 观察组初产妇的产程时间(P<0.05),剖宫产发生率均低于对照组(P<0.01),两组比较差异均有统计学意义(P<0.05);自然分娩率均高于对照组,两组比较差异均有统计学意义(P<0.01);会阴完整率、产后出血发生率比较差异无统计学意义;新生儿窒息率差异无统计学意义.结论 气囊仿生助产术"单扩法"对初产妇自然分娩可明显缩短分娩时间,提高阴道分娩率,降低剖宫产率.     

乙肝汤治疗慢性乙型肝炎46例

慢性乙型肝炎 (简称慢乙肝 ) ,具有传染性强、传播途径复杂、流行面广泛、发病率高等特点。本文对 4 6例患者用中药治疗获得满意疗效。现报道如下。1　临床资料　　 4 6例病例全部为门诊病人。其中中度慢乙肝 12例 ,轻度慢乙肝 34例 ;男 32例 ,女 14例 ;年龄最大者 5 0岁 ,最小者 2 0岁。参照 1995年北京第五次全国传染病及寄生虫病学术会议修订的病毒性肝炎防治方案的诊断标准诊断。2　治疗方法　　采用疏肝健脾活血解毒法 ,自拟乙肝汤。药物组成 :黄芪 30 ｇ,茯苓 15 ｇ,白术 15 ｇ,柴胡 10 ｇ,白花蛇舌草 15 ｇ,板蓝根 30 ｇ,虎杖 15 ｇ,…     

杭州市居民对健康城市建设满意现状及其影响因素分析

目的 了解浙江省杭州市居民对健康城市建设的满意现状及其影响因素,为该地区今后健康城市建设相关活动的开展提供科学依据.方法 于2019年11月-2020年7月采用分层随机抽样方法在杭州市抽取江干区、萧山区、桐庐县3个区/县30个街道/镇5 850名15～75岁常住居民进行问卷调查.结果 杭州市最终有效调查的5 559名居...     

锁骨上神经穿锁骨伴斜方肌止点异常一例

在解剖1具成年男尸过程中见其右侧斜方肌止点异常伴锁骨上神经穿锁骨骨孔.报道如下.男尸身长159.0 cm,其右侧斜方肌一部分异常肌束止于锁骨中部.抵止部长6.47 cm,内侧端距锁骨胸骨端内侧缘5.75 cm,外侧端距肩峰端外侧缘5.32 cm.在距锁骨胸骨端内侧缘9.02 cm处,该肌束与锁骨上缘形成一卵圆形空隙,其长轴1.09 cm,短轴0.47 cm,颈外静脉及锁骨上中间神经从中穿出.该肌束后缘与斜方肌中部前缘及锁骨上缘形成1个三角形间隙,内有锁骨上外侧神经穿出.     

右侧腋动脉变异一例

<正>在解剖一具成年男性尸体标本时,见其右侧腋动脉分支变异程度较大,较少见[1],现报道如下。右侧腋动脉第一段发出胸上动脉、胸肩峰动脉、变异干。胸上动脉和胸肩峰动脉其起点、分布无异常。变异干在胸小肌上缘发出,起点外径为3.84 mm,向外行于正中神经的深面。其分支有:第1支、第2支距变异干起点19.02 mm处发出,起始     

骨髓间充质干细胞移植联合依达拉奉抑制脑梗死后的神经元凋亡

背景：国内外多项研究证实骨髓间充质干细胞移植对脑梗死组织具有一定的神经保护作用。依达拉奉是一种新型强效小分子羟自由基清除剂,可通过清除脑梗死产生的自由基,抑制神经细胞损伤,从而起到脑保护作用。 目的：观察骨髓间充质干细胞移植联合依达拉奉对大鼠脑梗死组织水通道蛋白4、Bcl-2、脑源性神经营养因子表达的影响。 方法：选取Wistar大鼠80只,建立右侧大脑中动脉闭塞模型,随机分为对照组、骨髓间充质干细胞组、依达拉奉组和联合治疗组。建模6 h后通过尾静脉分别注入移植液,对照组注射培养液,骨髓间充质干细胞组注射骨髓间充质干细胞,依达拉奉组给予依达拉奉注射液,联合组同时注入骨髓间充质干细胞和依达拉奉注射液。分别在伤后72 h将大鼠麻醉后断头取脑,应用RT-PCR、Western Blot法检测脑组织中水通道蛋白4、Bcl-2、脑源性神经营养因子基因表达和蛋白合成变化。伤后12,24,36 h取大鼠脑组织以TUNEL法测定细胞凋亡情况。 结果与结论：RT-PCR、Western Blot结果显示,在骨髓间充质干细胞与依达拉奉联合治疗组中,Bcl-2、脑源性神经营养因子的表达明显高于骨髓间充质干细胞组、依达拉奉组及对照组(P < 0.05);而水通道蛋白4的表达低于其余各组(P < 0.05)。TUNEL测定结果显示,联合治疗组中免疫组化呈棕色的凋亡细胞明显少于单独治疗组及对照组。提示骨髓间充质干细胞移植与依达拉奉联合应用治疗大鼠脑梗死,可进一步促进损伤局部脑源性神经营养因子及Bcl-2的表达,对神经细胞凋亡具有明显的抑制作用,同时可下调水通道蛋白4水平,减轻脑水肿程度,二者联合运用的效果明显优于单独治疗组。中国组织工程研究杂志出版内容重点：干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程全文链接：