自血光量子疗法治疗脑梗死近期疗效观察

目的探讨自血光量子疗法治疗脑梗死近期疗效。方法将同期住院的８０例脑梗塞病人随机分成治疗组和对照组,两组一般资料及治疗前神经功能缺损评分无显著差异（Ｐ＞０．０５）。治疗组采用光量子自血疗法治疗,对照组采用常规的川芎嗪治疗。结果治疗后,治疗组与对照组比较,治疗组神经功能缺损积分低于对照组,有显著差异（Ｐ＜０．０１）。     

低剂量γ-射线及香烟对仔鼠发育和反射行为的影响

母鼠暴露于低剂量γ－射线（照射源６０Ｃｏ,剂量为０、０．２５、０．５、１．０ＧＹ）及香烟烟雾水溶物（浓度为０、０．５、１．０、１．５、２．０支／只）,可使子代小鼠发育（开眼、张耳、生毛、出牙）及反射行为（平面翻正、空中翻正、视觉定向、听觉惊愕）出现不同程度的延迟。并且低剂量γ－射线与香烟烟雾水溶物还有极显著的协同效应。     

“Buchler”后装机在临床应用的评估(附宫颈癌135例五年疗效分析)

本文从临床角度对Buchler机的放射源和剂量学上进行初步评估,认为尚有不足之处,另总结1983年10月至1985年3月应用高剂量率Buchler机合并~(60)钴或9 Mev直线加速器对分期为Ⅱ、Ⅲ期的宫颈癌135例进行根治性放射治疗,其五年生存率分别是85.25％(52/61)和68.92％(51/74)全组五年生存率为76.03％(103/135)。     

Myocardial perfusion damage after mediastinal irradiation for Hodgkin's disease: a thallium-201 single photon emission tomography study

Conflicting data have been reported on the incidence of myocardial abnormalities after mediastinal irradiation for Hodgkin's disease. We studied myocardial perfusion in 31 clinically asymptomatic patients (13 male, 18 female, mean age 35 years) 7 years (range 3–11 years) after mantle field radiotherapy. Thallium-201 tomoscintigraphic data were obtained after exercise, 4 h later and at rest (8–15 days later). Images were analysed visually and quantitatively (sectorial quantification of ²⁰¹T1 uptake on the bull's eye images of the short-axis slices) compared with those of 35 subjects with a low likelihood of coronary artery disease. Twenty-five tomographic data sets were available. Images were visually abnormal in 21 patients (84%) showing an heterogeneous ²⁰¹Tl uptake. In 68%, the sectorial ²⁰¹Tl uptake was lower than the mean ²⁰¹Tl uptake value minus 2 standard deviations measured in subjects with a low likelihood of coronary artery disease. Significant redistribution (quantitatively assessed 10%) was present in 10 patients (40%). In most of the patients, the location and the shape of the defect(s) could not be anatomically related to an epicardial coronary vessel disease. These results indicate that after mediastinal irradiation the ²⁰¹Tl myocardial uptake is frequently abnormal. The observed patterns suggest a disease of the small coronary vessels and/or the existence of a myocardial fibrosis rather than epicardial coronary artery disease.     

Pterygium excision with or without postoperative irradiation,a double-blind study

A double-blind study (covering 40 months) of 40 eyes with a pterygium which had not previously been operated on, was carried out to study the effect of postoperative irradiation. Nineteen eyes were treated by the bare sclera operation technique only and in 13 cases (68%) a recurrence occurred within 4 months. In 18 eyes from the group of patients treated with Sr 90 irradiation on the 1st, 7th and 14th postoperative day (maximum 3×1000 rad) no recurrences were seen.Patients with a recurrent pterygium and diplopia, symblepharon, visual disturbances (growth over the pupil or severe astigmatism) or many previous operations, were treated by lamellar keratoplasty (Dake, 1980). The recurrences without these complications were treated with success by the bare sclera technique and postoperative irradiation.Complications did not occur in any of the series.     

博宁联合化疗治疗骨转移癌所致疼痛的疗效观察

目的：选择理想的治疗骨转移癌所致疼痛的方法。方法：以博宁联合化疗或以^153Sm—EDTMP内照射联合化疗治疗52例骨转移癌。结果：治疗组总有效率为84．00％，对照组总有效率为59．26％。结论：治疗骨转移癌所致的骨痛，以博宁联合化疗为主的方法优于^153Sm—EDTMP内照射联合化疗的方法。     

~(60)Co照射对肿瘤坏死因子基因转导的人肝癌细胞的增殖及TNF-α分泌的影响

 目的　用⁶⁰ 钴 (⁶⁰ Co)照射肿瘤坏死因子基因转导的人肝癌细胞 (BEL 74 0 4 TNF细胞 ) ,用于制备一种肿瘤疫苗。方法　用不同方式及不同剂量的⁶⁰ Co照射BEL 74 0 TNF细胞及未转基因的BEL 74 0 4细胞 ,观察照射后细胞增殖情况及肿瘤坏死因子α(TNF α)分泌量。结果　经 80Gy ⁶⁰ Co连续分量照射的BEL 74 0 TNF细胞增殖能力丧失 ,但仍然生存并能持续分泌TNF α2周以上 ,细胞在 3周内全部死亡。结论　用⁶⁰Co照射BEL 74 0 4 TNF细胞制备肿瘤疫苗是可行的 ,80Gy ⁶⁰Co连续分量照射可能是合适剂量     

天狼星红染色法结合图像分析在放射性肺纤维化研究中的应用

应用天狼星红染色切片进行偏振光显微镜观察，可明确地区分Ⅰ、Ⅲ型胶原并显示两型胶原在肺组织中的分布及其变化规律，配合图像分析法，可以测定不同剂量照射后三个月各组肺内Ⅰ、Ⅲ型胶原纤维的比值变化；将这一方法与肺组织羟脯氨酸含量测定相比较，表明二者在显示肺纤维化程度和变化趋势上具有相同的结果。     

放射诱导胃癌细胞的凋亡及其相关基因的研究

目的观察放射诱导人胃癌细胞株SGC-7901凋亡的作用，并进一步研究bcl-2基因及家族、bax基因、p53基因在此过程中的作用。方法用不同剂量的9 MeV β线照射SGC-7901细胞，观察细胞在受照后的不同时间生长情况。电子透射电镜下观察细胞形态变化。琼脂糖凝胶电泳检测DNA条带变化。流式细胞仪检测受照前后细胞周期及凋亡率的变化。免疫细胞化学法检测受照前后bcl-2、bax、p53基因的表达水平。结果单次剂量照射后，SGC-7901细胞凋亡率与时间、剂量有相关性。在放射诱导SGC-7901细胞凋亡的过程中，bcl-2基因表达水平下降，bax基因表达水平升高，而p53基因表达水平无变化。结论放射能够诱导胃癌细胞株SGC-7901凋亡，凋亡率在72h达高峰。bcl-2及bax基因参与了放射诱导凋亡的调控。细胞凋亡主要是通过p53基因非依赖途径。