PVR B 级的裂孔性视网膜脱离术后复发与玻璃体病变关系临床分析

目的回顾分析近10年PVR B级的裂孔性视网膜脱离术后复发与玻璃体病变的关系.方法对429例(435只眼)PVR B级的裂孔性视网膜脱离施行巩膜扣带术治疗,其中41只眼术后复发(9.43%),分析术后复发与玻璃体病变的关系.结果术前玻璃体正常组与浓缩组的复发率(3.19%与12.33%)之间差异有显著性(P＜0.05);正常组与条索牵引组间的复发率(3.19%与14.29%)之间差异有极显著性(P＜0.01);正常组与总体组的复发率(3.19%与9.43%)之间差异有显著性(P＜0.05);术前无玻璃体后脱离组与玻璃体后脱离组间的复发率(5.56%与12.90%)之间差异有显著性(P＜0.05).视网膜脱离术前各种玻璃体的情况在视网膜脱离复发时均有不同程度地加重.结论PVR B级的裂孔性视网膜脱离术前玻璃体病变和玻璃体后脱离对术后复发影响明显.重视玻璃体-视网膜界面动态变化,可进一步提高手术治愈率.     

Autoradiographic localization of tachykinin and calcitonin gene-related peptide receptors in adult urinary bladder

PURPOSE: In bladder, sensory afferent nerve fibers contain the "sensory neuropeptides" substance P (SP), neurokinin A (NKA) and calcitonin gene-related peptide (CGRP), which interact with tachykinin NK-1 and NK-2 receptors and CGRP receptors, respectively. The purpose of this study was to examine the autoradiographic distribution of these three receptor types in the human bladder, to determine whether the anatomic location of the receptors was consistent with their known functional roles. MATERIALS AND METHODS: Specimens of urinary bladder from 9 patients (58-74 years) were obtained at cystectomy. Frozen sections of dome were labeled with [125I]-Bolton-Hunter [Sar9,Met(O2)11]-SP (NK-1 receptors), [125I]-[Lys5,Tyr(I2)7,MeLeu9,Nle10]-NKA(4-10) (NK-2 receptors) and [125I]-rat CGRP-I. Binding sites were visualized using emulsion autoradiography. RESULTS: NK-1 receptors were found over the endothelium of arterial blood vessels within the detrusor muscle and lamina propria, and over small vessels in the subepithelium. NK-2 receptors were seen over the detrusor muscle and very sparsely over blood vessels, whereas CGRP receptors were expressed densely over the smooth muscle layer of arteries and arterioles, and weakly over collecting venules. NK-1 and CGRP receptors were not observed over the detrusor muscle. CONCLUSIONS: Although the afferent nerves contain all three peptides, not all cell types express receptors for each peptide. The general distribution of receptors is in good agreement with the location of nerves, and with the known actions of SP and CGRP as vasodilator agents, and of NKA (but not SP or CGRP) in contracting the detrusor muscle.     

相对封闭区域内人指纹的遗传特性研究

不同民族指纹纹型分布不同 ,同民族、不同地区人的指纹纹型分布也有差异。以一个较封闭群体为对象 ,研究指纹的遗传规律 ,发现斗型和尺箕型具有较强的显性特征。决定尺箕的基因可能也影响弓型纹型的表达 ,决定斗型纹型的基因可能也影响双箕斗纹型的表达     

儿童塑型性支气管炎的诊断与治疗

目的　报告 5例儿童塑型性支气管炎病例 ,并复习相关文献 ,总结诊断及治疗方法。方法　 2 0 0 1年5月至 2 0 0 3年 10月 ,对 5例年龄 9个月至 10岁 ,主诉为反复咳嗽、气促并出现急性呼吸窘迫的塑型性支气管炎患儿 ,给予支气管镜检及气道内异物取出术 ,配以反复纤维支气管气道内冲洗、呼吸机机械通气、胸部物理治疗、强化护理及吸痰等综合治疗。结果　 5例中 ,4例支气管镜检取出异物 ,1例为吸痰时吸出支气管状条形异物 ,经病理检查确诊。双侧支气管病变 1例 ,左侧支气管病变 2例 ,右侧支气管病变 1例 ,另 1例吸痰时可吸出。死亡 2例 ,其余 3例均痊愈出院。病理组织学分型按Seear方法 :Ⅰ型 3例 ,Ⅱ型 2例。结论　塑型性支气管炎是一种高危性疾病 ,确诊需依靠支气管镜检查和病理组织学检查。支气管镜异物取出术是唯一有效的治疗方法。气道护理和胸部物理治疗是重要的辅助治疗手段。     

脑梗死患者血脂水平检测及临床意义

目的探讨血脂水平与脑梗死的关系。方法通过对137例急性脑梗死患者与对照组血脂变化观察,多因素分析用SPSS10.0软件包中的Logistic回归方程,计算相对危险度(RR),RR的95%可信限(CI)。结果脑梗死组TC、TG、LDL-C浓度均明显高于对照组,而HDL-C浓度明显低于对照组。结论血清TC>6.0mmol/L才增加脑梗死的风险,而HDL-C浓度≥0.85mmol/L可降低脑梗死的风险。     

模拟生物矿化制备多糖铁的新方法

目的建立模拟生物矿化制备多糖铁的新方法.方法选用壳聚糖,与FeCl3制成复合膜,模拟铁矿化过程,制备多糖铁.结果多糖铁为β-FeOOH晶形,且为纳米级.结论为开发补铁药提供了新途径,丰富和发展了纳米药学理论.     

丹参酮ⅡA对兔髂动脉球囊损伤后胶原生成抑制的效应观察

目的:观察兔髂动脉损伤后,丹参酮ⅡA治疗组中膜平滑肌细胞(SMC)周围胶原变化的趋势.方法:取体重2.5～3kg纯种雄性新西兰大白兔30只,球囊导管扩张法制作左髂动脉内膜球囊损伤模型,术后分配到治疗组和对照组.治疗组丹参酮ⅡA稀释静脉注射,疗程6天;对照组采用等量生理盐水静脉注射.术后7天、14天和28天处死实验兔,将左侧髂动脉取出制作石蜡切片,并作胶原染色.结论:术后7天治疗组和对照组胶原纤维染色均不明显,术后14天和28天对照组SMCs周围可见胶原染色阳性,红染增多;治疗组14天SMCs周围也可见红染增多,但28天红染不明显;两组差异以术后28天明显(P=0.017);胶原染色随时间变化的趋势有统计学意义(P=0.005).结论:丹参酮ⅡA有抑制血管损伤后细胞外基质堆积的作用,从而可能有防治术后再狭窄的效应.     

The novel infra‐pectineal buttress plates used for internal fixation of elderly quadrilateral surface involved acetabular fractures

ObjectivesIn geriatric acetabular fractures, the quadrilateral surface (QLS) was frequently involved in acetabular fracture patterns and accompanied by medial displacement. It was important to buttress the medial displaced QLS and reconstruct the congruity of the affected acetabulum. To evaluate the clinical effectiveness of the novel infra‐pectineal quadrilateral surface buttress plates for the treatment of geriatric acetabular fractures.MethodsTwenty‐three geriatric patients who were treated for acetabular fractures involving QLS with the novel infra‐pectineal buttress plates (NIBP) through a single supra‐ilioinguinal approach between January 2015 and June 2019 were retrospectively analyzed; all patients received at least 1 year''s follow‐up. All patients were aged ≥60 years old and including 18 males and five females. Radiologic and clinical outcomes of patients involved in the study were collated and analyzed according to the Matta scoring system and the Merle D''Aubigné–Postel scoring system. The functional recovery scoring was compared using q‐test.ResultsAll 23 consecutive patients had relatively satisfactory clinical treatment effectiveness. Average ages, length of incision, operation time, and intraoperative blood loss were 69.8 ± 6.1 years, 12.1 ± 2.6 cm, 166.5 ± 43.5 min, and 500 (500,700) ml, respectively. According to the Matta scoring system, 14 cases of reduction were graded as excellent, five as good, and four as fair. At the last follow‐up, the clinical outcome evaluation was excellent in 13 cases, good in seven cases, and poor in three cases with the use of the Merle D''Aubigné–Postel scoring system. The difference of modified Merle D''Aubigne‐Postel score at 3 months, 6 months and last follow up was statistically significant (F = 21.56, p < 0.05). Postoperative lateral femoral cutaneous nerve injury occurred in three patients and heterotopic ossification occurred in one patient.ConclusionsFor the treatment of geriatric acetabular fractures, the NIBP could provide stable and effective fixation to the QLS involved acetabular fractures, and related satisfactory clinical results with few complications were noted.