体细胞基因治疗及其在口腔医学中应用前景

转基因治疗是近年来引人注目的新领域,发展十分迅速。本文对体细胞转基因治疗基本概念、技术问题及研究状况进行了论述,同时对基因治疗在口腔医学中应用前景作了综述。     

贵州地区网织红细胞各项参数的参考值调查

目的调查贵州地区网织红细胞(简称网红)各项参数的参考值。方法用SysmexXT-2000i五分类血液细胞分析仪对538例健康成人网红各项参数进行测定,按男女性别分别统计出各项参数的平均值(X)和标准差(s),并作均数t检验。结果网红绝对值(RET#)在男性与女性之间有显著性差异(P<0.05),男性RET#(0.07592±0.03037)×109/L,女性RET#(0.05946±0.02914)×109/L。网红百分数(RET)、低荧光强度(LFR)、中荧光强度(MFR)、高荧光强度(HFR)和未成熟网红指数(IFR)在两性之间无显著性差异(P>0.05)。结论健康成人RET#的参考值范围与性别有关,RET、LFR、MFR、HFR和IFR的参考值范围与性别无关。建议各实验室建立网红参数参考值,从而为临床提供有价值的数据。     

新生儿胃肠功能障碍47例临床分析

为探讨新生儿胃肠功能障碍的临床特点 ,对４７例新生儿胃肠功能障碍患儿进行分析。其中男４１例 ,女６例 ,胎龄＜３７周１６例 ,≥３７周３１例 ,小于胎龄儿４例。发病日龄＜２４ｈ６例 ,～３天１７例 ,～７天９例 ,＞７天１５例。体重＜２５００ｇ１２例 ,≥２５００ｇ３５例。有窒息史２９例 ,母乳喂养２８例 ,未开奶１７例 ,２例仅喂糖水。均表现有腹胀、肠鸣音减弱或消失 ;肠型１２例 ;呕血５例 ,呕吐咖啡样物２９例 ,胆汁２例 ;肉眼血便８例 ,黑便及果酱样便２６例 ,腹泻粘液便４例 ;体温波动２０例 ;惊厥８例 ,黄疸２７例 ,硬肿１０例…     

铅中毒误诊6例

铅中毒近年来已少见,特别是典型的则更少。最近我们在乡镇企业调查中检出铅中毒9例,经2～12个疗程依地酸钙钠治疗已愈;但有6例曾在地、市医院误诊为肠梗阻1例,消化道穿孔1例,胃炎4例。现将病例报告如下。     

3340例HBV五项血清学标志检测结果分析

检测乙型肝炎病毒血清学标志(HBVm)对乙型肝炎的病原学诊断、流行病学调查、疫苗接种及其效果考核均具有重要意义,HBVm随着HBV感染的病程变化而出现多种多样的组合形式或模式。这些模式和各项标志在健康人群和就诊病人中出现率的差异或许能揭示HBV流行的某些因索。我们用ELISA检测     

直肠癌Dixon切除术后局部复发因素探讨

本文通过对８８例直肠癌行Ｄｉｘｏｎ切除术后２８例局部复发病例进行了分析，提出了术后局部复发与年龄，组织学分类，Ｄｕｋｅｓ分期，直肠癌侵犯肠壁的程度，直肠癌与下切缘距离，有无淋巴结清除术，有无进行来瘤处理七大因素有关。     

双酚胺酸对小鼠和大鼠氯化镍解毒及分布的影响

AIM: To study the effect of catecholamic acid (CBMIDA) on detoxication of NiCl2. METHODS: Mice and rats were injected s.c. or i.m. CBMIDA immediately after i.p. NiCl2. Each mouse was injected i.p. CBMIDA after i.v. 63NiCl2 185 kBq, and radioactivities of various tissues were measured with liquid scintillation counter at 24 h. The localization of 63Ni was shown by the whole-body autoradiography. RESULTS: CBMIDA s.c. 0.5-1.5 g.kg-1 markedly reduced the mortality from acute poisoning of i.p. NiCl2 500 mg.kg-1. After i.p. NiCl2 in mice, the LD50 was 82.7 mg.kg-1. Mice were injected s.c. CBMIDA 1.5 or 2.5 g.kg-1 after Ni poisoning, the LD50 of NiCl2 were raised to 789 or 820 mg.kg-1, respectively. The LD50 of NiCl2 was 39 mg.kg-1 in rat. If CBMIDA was injected i.m. 0.5 g.kg-1 after i.p. NiCl2, the LD50 was 332 mg.kg-1. CBMIDA 1.5 g.kg-1 i.m. after i.v. 63NiCl2, decreased the contents of 63Ni in blood and lung of mice vs control mice at 24 h. The contents of 63Ni in brain, heart, spleen, and kidney were similar to those of the control mice. The content of 63Ni in bone was more than the control. The excretions of 63Ni through urine and feces were not increased by CBMIDA at 24 h. The whole-body autoradiography showed that the radioactivity was highly localized in the kidney, lung, and Harder's gland. There was a moderate level of 63Ni in the liver, bone, skin, and blood. A pronounced accumulation occurred in the bone. There was a marked reduction of 63Ni in the lung, skin, liver, and blood after i.p. CBMIDA. CONCLUSION: The CBMIDA markedly raised the survival rate of nickel-poisoned mice and rats, and decreased 63Ni levels in lung and blood.