感音神经性聋儿多频稳态诱发电位及短纯音听性脑干反应与行为测听的相关性

目的 比较多频稳态诱发电位（MASSR）、短纯音听性脑干反应（Tb—ABR）与感音神经性聋儿行为测试听阈的差值．研究MASSR和Tb—ABR反应阈与行为听阈之间是否存在相关性以及在不同听力损失聋儿、不同的频率之间的差异。方法 对60名感音神经性聋儿分别测试MASSR和Tb—ABR反应阈和行为听阈，评价MASSR反应阈、Tb—ABR反应阈与行为听阈的相关性。结果 MASSR反应阈、Tb—ABR反应阈和行为听阈之间均有较高的相关性。二者在频率为2、4kHz时，对行为听阈的预测具有相似的、较高的准确性；但在频率为0．5、1kHz时，MASSR的准确性较Tb—ABR高。结论 MASSR和Tb—ABR均可用作感音神经性聋儿言语频率客观听阈的预测，为低龄儿童及难以检测行为听力的患儿提供诊断依据。     

半夏泻心汤及其拆方对幽门螺杆菌相关性胃炎小鼠血清炎性相关因子的影响

目的:探讨半夏泻心汤治疗幽门螺杆菌感染所致胃黏膜炎症的内在机制。方法:用幽门螺杆菌菌液给小鼠灌胃造模,然后随机分成10组,分别给予相应的药物治疗。观察各组小鼠胃黏膜的形态学改变及血清中NO和IL-8含量的变化。结果:模型组小鼠血清中NO、IL-8水平较空白组显著升高(P<0·01),各治疗组NO、IL-8水平均有不同程度的降低,其中以半夏泻心汤组、苦寒组、半夏加苦寒组、苦寒加甘温组降低最为显著,与模型组比较差异具有显著性意义(P<0·01)。结论:半夏泻心汤通过降低血清中NO、IL-8的含量而减轻胃黏膜的炎症反应,从而发挥其对胃黏膜的保护作用。     

基于虚实辨证的补泻平衡手法治疗膝骨关节炎临床研究

目的观察补泻平衡手法治疗膝骨关节炎的疗效及对患者临床症状、体征的影响。方法采用随机数字表法将220例单膝骨关节炎患者分为治疗组和对照组各110例。治疗组予补泻平衡手法,对照组予常规推拿手法,均每次20 min,每日2次,1周为1个疗程,连续治疗2个疗程。观察2组治疗前后及治疗后3、6个月全身临床症状、体征及中医证候评分,比较2组临床疗效及不良反应。结果与本组治疗前比较,2组治疗后全身临床症状、体征评分明显降低(P<0.05),治疗组中医证候评分明显降低(P<0.05);2组治疗后比较,治疗组全身临床症状、体征改善程度优于对照组(P<0.05);与本组治疗后比较,2组治疗后3、6个月全身临床症状、体征评分升高。治疗组治疗后3、6个月中医证候评分升高,仍低于治疗前(P<0.05)。治疗组总有效率为91.8%(101/110),对照组为78.2%(86/110),2组比较差异有统计学意义(P<0.05)。2组均未见不良反应。结论补泻平衡手法与常规推拿手法治疗膝骨关节炎均有效,前者疗效优于后者,且中远期疗效更佳。     

浙贝乙素及其衍生物对豚鼠支气管平滑肌环磷酸腺苷的影响

目的：观察浙贝乙素及其衍生物对豚鼠支气管平滑肌内环磷酸腺苷（cAMP）水平的影响。方法：采用氧化铝柱层析法分离环磷酸腺苷（cAMP），利用紫外分光光度法计算环磷酸腺苷（cAMP）的生成或消耗量来表示腺苷环化酶（AC）和磷酸二酯酶（PDE）的活力。结果：浙贝乙素衍生物各样品对腺苷环化酶（AC）的影响很低，对磷酸二酯酶（PDE）有抑制作用，从而提高环磷酸腺苷（cAMP）的水平。结论：淅贝乙素衍生物通过提高支气管平滑肌细胞内环磷酸腺苷的水平产生平喘作用。     

自体结膜移植术治疗原发性翼状胬肉38例

目的探讨自体结膜移植术治疗原发性翼状胬肉的治疗效果,并观察其术后复发情况。方法 38例患者均行原发性翼状胬肉切除联合自体结膜移植术,并对术后患者的疗效和复发情况进行随访。结果 38例原发性翼状胬肉患者手术均获成功。术后随访期间共有2例(5.3%)复发,1例发生在术后第2个月,另外1例发生在术后第6个月。2例于术后第2周发生缝线肉芽肿,经拆除缝线和局部应用类固醇激素好转,所有患者术后无严重并发症。除复发病例外,在术后3个月复诊时局部充血状态均完全消失。结论自体结膜移植术治疗原发性翼状胬肉安全有效,可显著降低其术后复发。     

妇产科教学质量综合评价指标体系研究

目的对不同教学模式和方法下的妇产科教学质量进行评价。方法通过专家评分法筛选妇产科教学质量的评价指标,并估计各指标的权重,进而用组成的评价体系来评估2005级五年制临床医学系普通班和国际标准试点班的妇产科教学情况。结果初步构建了一个分为两层由11个评价指标组成的综合评价指标体系。根据构建的妇产科教学质量体系和学生调查表的结果,试点班的综合评分指数高于普通班（t=2．257,P=0．027）。结论构建的教学质量综合评价体系能较好地反映妇产科教学的情况。在妇产科临床教学中采取“器官系统”教学模式和PBL教学方法的教学质量高。     

浙贝乙素及其衍生物对豚鼠支气管平滑肌环磷酸腺苷的影响

目的:观察浙贝乙素及其衍生物对豚鼠支气管平滑肌内环磷酸腺苷(cAMP)水平的影响。方法:采用氧化铝柱层析法分离环磷酸腺苷(cAMP),利用紫外分光光度法计算环磷酸腺苷(cAMP)的生成或消耗量来表示腺苷环化酶(AC)和磷酸二酯酶(PDE)的活力。结果:浙贝乙素衍生物各样品对腺苷环化酶(AC)的影响很低,对磷酸二酯酶(PDE)有抑制作用,从而提高环磷酸腺苷(cAMP)的水平。结论:浙贝乙素衍生物通过提高支气管平滑肌细胞内环磷酸腺苷的水平产生平喘作用。     

湖南省岳阳市癫痫流行病学调查

目的了解湖南岳阳癫痫患病率及治疗缺口,为开展防治工作提供依据。方法采用多级整群随机抽样方法确定调查人群,运用WHO建议的癫痫流行病学专项调查问卷,采用国际统一的癫痫诊断标准,由经过统一培训的调查员入户调查,调查确诊或可疑为癫痫者均经神经科医师再次访查确诊。结果共调查32059人,确诊癫痫患者143例,癫痫患病率为4.5‰。男性患病率高于女性(P<0.05)。年龄组患病率分布存在20岁年龄组(8.4‰)和60岁年龄组(5.4‰)两个高峰。农村患病率明显高于城市(P<0.05)。继发全面性强直-阵挛发作占大多数(63.4%)。活动性癫痫的治疗缺口93.4%。结论湖南岳阳癫痫患病率农村地区较高、城市较低,患者中约有90%以上没有得到正确的治疗,应尽快制定合理的干预对策。     

High-dose therapy and peripheral blood progenitor cell transplantation: effects of recombinant human granulocyte-macrophage colony-stimulating factor on the autograft

Between June 1989 and June 1992, 144 patients participated in sequential clinical trials using peripheral blood progenitor cells (PBC) as their sole source of hematopoietic rescue following high-dose chemotherapy. All patients had received prior extensive combination chemotherapy and had marrow defects that precluded autologous bone marrow transplantation (ABMT). PBC were collected according to a single apheresis protocol. The initial 86 patients (group 1) had PBC collected without mobilization. Beginning in April 1991, PBC were mobilized solely with recombinant human granulocyte-macrophage colony-stimulating factor (rHuGM-CSF). Thirty-four patients (group 2) received rHuGM-CSF at a dose of 125 micrograms/m2/d by continuous intravenous infusion, and 24 patients (group 3) received rHuGM-CSF at a dose of 250 micrograms/m2/d by continuous intravenous infusion. Patients underwent at least six aphereses and had a minimum of 6.5 x 10(8) mononuclear cells (MNC)/kg collected. Cytokines were not routinely administered immediately after transplantation. A median of nine aphereses were required to collect PBC in group 1 and seven aphereses for groups 2 and 3 (P = .03). The time required to recover 0.5 x 10(9)/L granulocytes after transplant was significantly shorter (P = .0004) for the mobilized groups; the median time to recovery was 26 days for group 1, 23 days for group 2, and 18 days for group 3. Transplantation of PBC mobilized with rHuGM-CSF resulted in a shorter time to platelet (P = .04) and red blood cell (P = .01) transfusion independence. Mobilization with rHuGM-CSF alone resulted in efficient collection of PBC, that provided rapid and sustained restoration of hematopoietic function following high-dose chemotherapy. Mobilization of PBC with rHuGM-CSF alone is an effective method for patients who have received prior chemotherapy and have bone marrow abnormalities.     

Stability and sterility of biosynthetic human insulin stored in plastic insulin syringes for 28 days.

The stability and sterility of biosynthetic human insulin products stored at refrigerator and room temperatures in two types of plastic syringes and the stability of preservatives in the products were studied. Four types of biosynthetic human insulin were used: regular, isophane, combination, and extemporaneously prepared combination. Samples (0.4 mL) were withdrawn from multiple-dose vials into 39 polypropylene and 39 propylene-ethylene copolymer syringes. Three syringes of each type were analyzed immediately; the remaining syringes were stored in plastic bags, half at room temperature (23 degrees C) and half in the refrigerator (4 degrees C). A vial of each type of insulin was maintained under similar conditions. At days 1, 3, 7, 14, 21, and 28, samples from each syringe were analyzed by high-performance liquid chromatography for insulin potency and m-cresol and phenol concentrations. Samples of each product were also tested for sterility after 1, 2, and 4 weeks of storage at 4 degrees C and 23 degrees C. The potency of insulin in each of the biosynthetic human insulin products did not change significantly during the 28-day study in both types of plastic syringes and at both temperature settings. m-Cresol concentrations decreased in all samples; greater decreases occurred in samples stored at room temperature and in samples stored in polypropylene syringes. Phenol concentrations were less affected than m-cresol concentrations; greater decreases occurred in samples stored at room temperature. No significant decreases in insulin potency or m-cresol or phenol concentrations occurred in control samples stored in vials kept under similar conditions.(ABSTRACT TRUNCATED AT 250 WORDS)