P21WAF1, P27KIP1, TP53 and C-MYC analysis in 204 ovarian carcinomas treated with platinum-based regimens.

BACKGROUND: The prognostic and predictive value of cell cycle regulatory proteins in ovarian cancer has not been established. We evaluated the clinical and biological significance of P21(WAF1), P27(KIP1), C-MYC, TP53 and Ki67 expressions in ovarian cancer patients. MATERIALS AND METHODS: Immunohistochemical analysis was performed on 204 ovarian carcinomas of International Federation of Gynecology and Obstetrics (FIGO) stage IIB to IV treated with platinum-based chemotherapy. Multivariate analysis with Cox and logistic regression models was performed in the whole group, and in the TP53-negative and TP53-positive subgroups. RESULTS: High P21(WAF1) labeling index (LI) was an independent positive predictor of platinum-sensitive response (P = 0.02). Overall survival was positively influenced by P21(WAF1) LI (P = 0.02) or by P21(WAF1) plus P27(KIP1) LI (P = 0.004) in the TP53-negative group only. Ki67 LI showed borderline association with disease-free survival (P = 0.05). Growth fraction was negatively associated with P21(WAF1) and P27(KIP1) indices in the TP53-negative group (P = 0.023 and 0.008, respectively), and these associations were borderline or lost in the TP53-positive group. Endometrioid and clear cell carcinomas differed from other carcinomas by having a low incidence of TP53 accumulation, a high incidence of C-MYC overexpression (70%) and a low median Ki67 LI (all with P <0.001). CONCLUSIONS: We have shown an independent predictive value of P21(WAF1) LI in ovarian carcinoma patients. The prognostic value of P21(WAF1) and P21(WAF1) plus P27(KIP1) LI was determined by TP53 status. A high frequency of C-MYC overexpression in endometrioid and clear cell carcinomas may suggest its role in the development of these tumor types.     

MA方案治疗成人急性非淋巴细胞白血病的疗效分析

[目的]评价米托蒽醌、阿糖胞苷(MA)方案作诱导治疗成人急性非淋巴细胞白血病(ANLL)初治患者的疗效。[方法]对诊断明确者分为M1、M2型及M4、M5型，各型内部随机分为MA组和柔红霉素、阿糖胞苷(DA)组，1、2个疗程后，分别评价疗效。[结果]M1、M2型中，MA、DA组1个疗程后CR分别为70．0％、63.6％，2个疗程总CR分别为75．0％、68．2％，总有效率分别为85.0％、81．8％，两组间均无显著性差异。M4、M5型中，MA、DA组1个疗程CR分别为68．8％、33．3％，两者有显著差异，而2个疗程总CR分别为68．8％、46。7％，总有效率分别为81．3％、60．0%，两组问无显著性差异。MA组骨髓抑制作用强于传统DA组。[结论]MA方案可作为成人ANLL（M4、M5)首选诱导治疗方案。     

IL-1和肿瘤转移

P21蛋白是ras基因族的一种共同表达产物,在多种肿瘤中有过量表达.为探讨其与脑胶质瘤发生的关系,应用SP免疫组化方法检测79例脑胶质瘤P21蛋白的表达.1 材料与方法取1985～1994年我院部分脑胶质瘤术后石蜡包埋标本.其中星形细胞瘤50例,男35例,女15例,平均年龄36.5岁.室管膜瘤16例,男11例,女5例,平均年龄26岁.髓母细胞瘤13例,男10例,女3例,平均年龄14.3岁,其中18岁以下10例.病理分级按Kemohn脑胶质瘤4级分类法.采用链霉菌抗生物素蛋白-过氧化物酶连接(SP)法.鼠抗人P21抗体(MAB-0143)及桥抗均为美国Maxim公司产品.试剂盒由福州迈新公司提供,产品规格为即用型.以迈新公司提供的阳性片作阳性对照.     

临床医学成教专升本生理学教学的探索

在临床医学成教专升本生理学教学中,开展系列生理学专题讲座及学生读书报告会的教学改革,有效地调动了学生的学习主动性,促进了学生能力的培养和综合素质的提高.     

Exostoses of the external auditory canal: a long‐term follow‐up study of surgical treatment

To determine the postoperative incidence, extent and recurrence rate of exostoses of the external auditory canal in a cohort of patients involved in different water sports. A cross‐sectional study of 31 patients (46 ears), with exostoses treated by surgery in the Royal Cornwall Hospital between 1980 and 1999. A questionnaire was used to obtain information about the type of water exposure pre‐ and postoperatively. The extent of recurrent stenosis was assessed. The mean postoperative time interval was 10 years (sd = 4.5 years). The degree of stenosis was assessed as: minimal (<30%) in 42.6%, moderate (30–60%) in 31% and severe (>60%) in 25% of ears. The Cox regression model was used to identify factors associated with a reduction in the recurrence rate of stenosis. The use of ear plugs was highly significant (P = 0.015), as was the age of the patient at the time of operation (P = 0.004), i.e. the older the patient, the faster recurrent disease developed. There was no evidence to show that either the type or seasonal pattern of water sport activity influenced recurrence of the disease postoperatively, although preoperatively, the stenosis was more marked in association with surfing and sailing. Exostoses developed faster preoperatively in those who were in the water all year round rather than just the summer months. Of five patients who stopped water sport activity completely after surgery, four of them developed significant recurrent exostoses (>50% stenosis).     

重度先兆子痫终止妊娠孕周和方法与围生结局再评估

目的　探讨重度先兆子痫 (severe pre- eclam psia)终止妊娠时间和方法与围生结局的关系。　方法　系统性回顾分析 1988年 9月至 2 0 0 2年 2月我院收治的 30 4例重度先兆子痫终止妊娠时间、方法与围生结局。　结果　孕 33周前胎死宫内发生率及围生儿病死率明显高于孕 33周后者 ,差异有显著性 (χ2 =6 9.89,P<0 .0 0 1;χ2 =10 .5 0 ,P<0 .0 5 )。孕 33周前和 33周后阴道分娩与剖宫产的新生儿死亡率比较 ,差异均无显著性 (P>0 .0 5 )。　结论　重度先兆子痫发生时间和终止妊娠时间与产科结局和围生结局密切相关 ,在 <34孕周发生的重度先兆子痫 ,适时终止妊娠 ,慎行剖宫产 ,有利提高母婴生存质量。     

轻比重罗哌卡因与左旋布比卡因用于高龄患者连续脊麻的可行性研究

目的 研究轻比重罗哌卡因与左旋布比卡因用于高龄患者下肢关节置换术连续脊麻的安全性与可行性。方法 择期在连续脊麻下行单侧下肢关节置换术的高龄患者60例，随机分为罗哌卡因（R）组和左旋布比卡因（L）组，每组30例。R组采用0．3％罗哌卡因，L组采用0．3％左旋布比卡因。用Spinoeath导管针（27G）于L2-3，穿刺蛛网膜下腔并置管2～3Cm，以0．1ml／s注入轻比重局麻药4．0ml。观察双侧感觉和运动阻滞时间、双侧最大阻滞平面、维持止痛时间、运动恢复时间、最大Bromage评分、局麻药用量和输液输血量。记录平均动脉压、心率、呼吸、血氧饱和度、并观察不良反应。结果 R组感觉阻滞起效时间和运动阻滞时间均比L组慢（P〈0．01）；两组最大阻滞平面均呈现手术侧显著高于健侧（P〈0．001）；R组维持止痛时间和运动恢复时间均比L组缩短（P〈0．01）；R组最大Bromage的3级构成比明显小于L组（P〈0．05）；R组局麻药用量显著多于L组（P〈0．01）。两组血液动力学变化与其术前比较差异无显著性（P〉0．05）；两组术中和术后不良反应较少，且组间比较差异无显著性（P〉0．05）。结论 轻比重罗哌卡因与左旋布比卡因用于高龄患者下肢关节置换手术的连续脊麻均安全有效。     

细辛脑注射液对支气管哮喘患儿呼吸道炎症因子的影响

目的观察细辛脑对支气管哮喘患儿呼吸道炎症因子的影响。方法共选取60例支气管哮喘患儿,随机分成2组,治疗组予细辛脑注射液0.5 mg/kg,用10%葡萄糖注射液稀释成0.01%的溶液,静脉滴注,2次/d;对照组用氨茶碱针4~6 mg/kg加入5%葡萄糖注射液100 mL静脉滴注,1次/d,两组均用7 d为1个疗程,共观察2个疗程。结果治疗2周后,两组嗜酸性粒细胞与巨噬细胞治疗前后比较均有明显差异(P均<0.05),同时治疗组的淋巴细胞、CD4 T细胞与治疗前比较均有明显差异(P均<0.05),两组嗜酸性粒细胞、巨噬细胞、淋巴细胞、CD4 T细胞比较也均有明显差异(P均<0.05)。治疗后两组肺功能均比治疗前明显改善(P均<0.05),治疗组的肺功能I、L-5与对照组有明显差异(P<0.05)。结论细辛脑注射液对哮喘患儿呼吸道炎症因子的影响优于氨茶碱组。     

早发型重度子癎前期严重并发症的监测与防范

子疒间前期-子疒间(preeclampsia-eclampsia,PE-E)是妊娠期特有的严重并发症,常常累及心、脑、肝、肾和胎盘等重要器官,引起这些终末靶器官损害(target organ damage,TOD)。尤其是发生较早的早发型重度子疒间前期(early on-set of severe preeclampsia),存在着最为尖锐的母胎之间的利益冲突,严重影响着母婴的生命安全。目前的临床研究已经显示,重度子疒间前期(severe preeclampsia,S-PE)尤其在早发型与晚发型之间存在着终末靶器官受累的不平行性[1]。在目前尚无理想的临床预测方法和靶器官损害生物指标建立之时,行之有效的终末靶器官受…     

术中照射野新型遮挡材料的研制与效果评析

本文介绍一种复合放射线遮挡材料,用于术中放射治疗照射野内重要组织器官的保护.