儿童气管、支气管内特殊异物临床研究

目的:探讨气管、支气管内特殊异物的临床特点及治疗方法。方法:回顾性分析自1998年9月以来收治的789例儿童气管、支气管异物病历资料,从发病率、患者性别、年龄、病程、临床症状、辅助检查、治疗方法、异物的解剖位置、异物种类及诊疗效果等方面对其中的23例特殊异物的临床特点及治疗方法进行总结。结果:22例痊愈出院,1例死亡。结论:气管、支气管内特殊异物在临床特点及治疗方法等方面均不完全等同于普通异物。     

高温致厚朴SFE-CO2萃取物中厚朴酚、和厚朴酚降解

目的了解影响厚朴中有效成分厚朴酚、和厚朴酚的不稳定因素。方法用HPLC法测定在不同实验条件下,厚朴SFE-CO₂萃取物中厚朴酚、和厚朴酚的含量;用加速实验测定有效期。结果厚朴酚、和厚朴酚的有效期(25℃)分别为387 d和476 d。结论温度是影响厚朴酚、和厚朴酚有效期的最主要因素, 降解符合一级速度反应。     

英国药学教育制度对我国药学教育发展的启示

目的:探讨英国药学教育制度对我国药学教育发展的启示。方法:分析英国药学教育制度的成功之处及其缺点,提出对我国药学教育未来发展的建议。结果与结论:英国药学教育以培训药学硕士为主,其教学内容需遵从英国药物政务局的全国统一指示性药学教学大纲,教学及考试方式以案例教学法和临床能力测验为主,有效地规范了全国的药学教育,使课程的质量和学生能力达到较高水平。这些制度对我国药学教育有正面的参考价值,也有实施的可能性。     

大豆蛋白体外酶解物中血管紧张素转化酶抑制剂活性肽研究

目的:体外模仿部分胃肠道消化酶解过程,考察大豆蛋白酶解消化能否产生血管紧张素转化酶抑制剂(ACEI)活性肽及其活性状况,以揭示大豆蛋白体内消化酶解与ACEI的活性关系。方法:模拟人体胃肠道消化过程,以胃蛋白酶结合胰蛋白酶,相继酶解大豆分离蛋白(SPI),经色谱分离,动态检测不同阶段ACEI肽片段及其活性大小。结果:胃蛋白酶酶解过程前20min内,酶解液ACEI活性达到最高点,随后在胰蛋白酶酶解阶段其抑制活性下降。180min后的酶解产物,其半抑制活性浓度IC50值为0.28±0.06 mg/ml。同时,未经酶解的SPI液在0.73mg/ml时无ACEI活性。SPI酶解液经各种色谱分离后的组分,其IC50值从0.13±0.03到0.93±0.08 mg/ml。低分子量和伴有疏水性基团的肽类最具ACE抑制活性。结论:体外模仿胃肠消化过程使用胃蛋白酶和胰蛋白酶酶解SPI可产生不同ACEI活性的肽片段,说明人体正常摄食消化大豆蛋白可产生血管紧张素转化酶抑制剂活性肽。     

运动与负荷对大鼠骨形态影响的无偏体视学观察

为探讨运动对青少年长骨发育的机理,本研究以大鼠作为实验模型,使生长期大鼠进行不同强度的跑台运动,同时结合悬吊和负重模型,采用体视学全视野无偏采样方法对不同强度运动和不同形式机械负荷的生长期大鼠骨量、骨结构、骨代谢等形态参数进行测试分析,取得运动与负荷对大鼠长骨发育影响的系列结果,为儿童少年生长发育状况的评价、运动和其它干预手段的选择以及运动处方的制订等提供部分依据。     

Snake skin pattern gastropathy in cirrhotic patients

Gastric mucosal lesions are common in patients with cirrhosis. Among them, snake skin pattern gastropathy (SSPG) is the most distinguishing one. A prospective study was conducted to investigate the incidence of SSPG in cirrhotic patients, the relationship between the degree of portal pressure and SSPG, and the possible association of SSPG with serum levels of gastrin and pepsinogen I. SSPG was found to be significantly more common in 100 cirrhotic patients than in 100 age- and sex-matched healthy controls (41% vs 0%, P less than 0.0001). Hepatic venous pressure gradient and serum gastrin and pepsinogen I levels were measured in 21 cirrhotic patients with SSPG and 25 cirrhotics without SSPG. There was no significant difference in hepatic venous pressure gradient (16.1 +/- 4.4 mmHg vs 16.1 +/- 4.9 mmHg, P greater than 0.05), serum gastrin level (78.0 +/- 26.7 pg/mL vs 80.1 +/- 32.5 pg/mL, P greater than 0.05) and serum pepsinogen I level (69.5 +/- 26.6 ng/mL vs 65.2 +/- 26.1 ng/mL, P greater than 0.05) in cirrhotic patients with or without SSPG. In conclusion, SSPG is common in cirrhotic patients. Portal pressure per se may not be the only factor causing SSPG--other aggressive factors may be needed together to cause the gastropathy. There is no evidence of correlation between serum gastrin or pepsinogen I level and SSPG.     

Endorectal ultrasonography: evaluation of locoregional extension of cancers of the rectum

The treatment of rectal carcinoma is mainly determined by its local extension, which is difficult to assess before surgery. Our purpose was to determine the reliability of endorectal echography (ERE) in order to provide preoperative assessment of local extension of rectal tumors. Twenty-five patients with rectal adenocarcinoma were included in this study. Seventeen tumors could be felt by rectal examination. ERE was impossible in one case. Echographic data were compared with anatomic findings in 24 patients. ERE provided an accurate assessment of the parietal involvement in 22 cases. The sensitivity and specificity of ERE in determining the spread of the tumor to the rectum alone were 1 and 0.89, respectively, superior to the results provided by clinical examination alone (sensitivity 0.84-specificity 0.76). When the results of the two investigations were identical, all patients were well classified. For lymph node involvement, the sensitivity and specificity of ERE were 0.71 and 0.76 respectively. These results show that ERE is one of the best investigations currently available for assessing parietal involvement of rectal tumors. ERE might be able to determine the appropriate place of radiation therapy, local excision or anal sphincter preservation.     

Spondylometaphyseal dysplasia, corner fracture type: a heritable condition associated with coxa vara

The authors present the radiographic features of a previously incompletely delineated bone dysplasia, which they call spondylometaphyseal dysplasia, corner fracture type. This is a dominant heritable condition associated with short stature and developmental coxa vara. The progressive hip deformity usually causes significant disability requiring surgical correction. Developmental coxa vara, simulated corner fractures of long tubular bones, and vertebral body abnormalities result in a diagnostic constellation. Knowledge of these distinctive radiologic features allows accurate diagnosis, which in turn should lead to appropriate genetic counseling and possibly to earlier, more efficacious surgical treatment of the coxa vara.     

33 cases of hematoma of the rectus abdominis muscle in a surgical department

The authors report a series of 33 hematomas of the recti-abdominis muscles from a surgery department: 15 occurred under anticoagulants 6 were spontaneous, 5 followed trauma and 6 a surgical procedure. The clinical picture was subacute in 24 cases, combining an abdominal pain (32 cases) a mass (10 cases) and an extensive ecchymosis (6 cases). The picture was acute in 6 extensive hematomas with collapse and anemia. In 3 cases an isolated mass was the first symptom. Echography has represented, since 1977, a decisive advance in the diagnosis, which was found to be accurate in 5 out of 10 cases before its introduction, and in 19 out of 20 when it was resorted to in the 23 cases recorded later. TDM is useful only in few cases. 23 patients were have been operated on: 6 for cardiovascular collapse, 3 because the diagnosis had not been made, 8 on order to confirm the diagnosis, 3 because of an increase in size of the hematoma and 3 owing to infection. In the 10 cases not submitted to surgery, the evolution was favourable. The therapeutic approach must be lanced according to the patient's condition, the size, side effect and evolution of hematoma. The aim of the operation is to evacuate the hematoma, to drain it and sometimes to tie up the bleeding vessel.