Anti-inflammatory effect of methoxyphenamine compound in rat model of chronic obstructive pulmonary disease

AIM: To evaluate the anti-inflammatory effect of methoxyphenamine compound (MC) on chronic obstructive pulmonary disease (COPD) in rats by measurement of proinflammatory cytokines, total and differential white cell counts (WCC) of bronchroalveolar lavage fluid (BALF). METHODS: Adult rat model of COPD (COPD group) was induced by intratracheal instillation of lipopolysaccharides and exposure to cigarette smoke. Treatment groups received different dosage of MC (3, 9, and 27 mg daily, MC group) or prednisone (0.25 mg daily, P group) respectively. Tumor necrosis factor alpha (TNF-α), interleukin 1beta (IL-113), interleukin-6 (IL-6), transforming growth factor β (TGF-β) of BALF were determined by ELISA. Total and differential WCC were performed after Giemsa staining. RESULTS: The levels of TNF-α, IL-1β, IL-6, TGF-β, total and differential WCC in BALF of MC groups were significantly decreased than that of COPD group (P<0.01), and there was no significant difference among MC groups. There was no significa     

检测食管癌标本中PCNA和p16及Ki-67的临床意义

对西京医院进行根治性放疗的食管鳞状细胞癌患者 64例 ,照射剂量DT64～ 70Gy ,进行前瞻性研究 ,对其治疗前活检标本进行SP免疫组化染色 ,计数其阳性细胞数 ,并计算阳性率 ,观察其阳性率与食管癌放疗疗效及预后的关系。结果PCNA阳性率 5 1%～ 67 1% ,中央值 3 2 0 % ,PCNA阳性率 >40 %者较低于此值者预后明显差。p16在低分化癌中较高分化癌阳性表达率低 ,且随着病期的进展阳性表达率降低 ,P <0 0 5 ;Ki 67与近期疗效及预后未见明显差异。初步研究结果提示 ,PCNA阳性率是判断放疗疗效有意义的指标 ,且与p16联合检测对食管鳞癌放疗前恶性程度评定和预后估计有重要意义     

氧化苦参碱对青霉素致痫大鼠影响的实验研究

目的：探讨氧化苦参碱治疗癫痫的作用。方法：以大鼠腹腔注射青霉素800万U／kg制作癫痫模型．以苯巴比妥钠作阳性对照，观察氧化苦参碱的药理作用。结果：氧化苦参碱高、中、低剂量均可延长癫痫大鼠惊厥潜伏期，高剂量组明显减轻大鼠痫样发作程度；高、中剂量氧化苦参碱对大鼠皮层脑电图有明显改善；氧化苦参碱高、中剂量组能降低癫痫大鼠脑中MDA的含量，3组均可提高SOD的活性。结论：氧化苦参碱具有一定的抗癫痫作用。     

喉神经内分泌肿瘤临床特征

目的：探讨喉神经内分泌肿瘤的临床表现、诊断及治疗。方法：回顾分析我科收治的3例喉神经内分泌肿瘤，其中非典型类癌2例，行根治性手术切除及颈廓清术；嗜铬细胞瘤1例，行肿瘤局部切除术。结果：非典型类癌2例，术后随访1年，情况稳定。嗜铬细胞瘤1例，术后随访11年，预后良好。结论：喉神经内分泌肿瘤是一组形态各异的病变，正确诊断有赖于临床特点、光镜、免疫组织化学检查，部分患者需行超微结构检查。不同类型的肿瘤应行不同的治疗方法。     

重组人类表皮生长因子在超声乳化白内障摘除术后的应用

目的　观察重组人类表皮生长因子 (rh EGF)滴眼液对超声乳化白内障术后泪膜的疗效。方法　随机选择两组超声乳化白内障术后患者 ,A组 (74只眼 )术后给予 rh EGF眼液 ;B组 (87只眼 )术后给予赋形剂。分别于术后第 1天、7天、15天、30天进行干眼症状、角膜荧光素染色、泪膜破裂时间 (BU T)及泪液分泌试验观察加以比较 ,并进行统计学分析。结果　术后第 7天两组患者的干眼症状、BU T、泪液分泌量及角膜荧光素着色均有好转 (P<0 .0 1) ,两组间差异无显著性 (P>0 .0 5 ) ;而术后第 15天、30天 A组各项检查结果均有反复 ,与术后第 1天比较差异无显著性 (P>0 .0 5 ) ,B组各项检查结果反复较小 ,与术后第 1天比较 ,差异有显著性 (P<0 .0 5 )。结论　 rh EGF滴眼液对超声乳化白内障术后泪膜的修复有促进作用。     

Functional localization of epileptic foci in cats using manganeseenhanced MRI

Objective： To determine the encephalic region correlated with epilepsy by manganese-enhanced MRI （MEMRI） and determine the correlation of epilepsy with calcium overloading. Methods： The cats were divided into two groups. The first group underwent EEG examination and ethological observation. The second group underwent MEMRI measurement. Signal enhanced encephalic regions were sectioned. Results： The achievement ratio of convulsive cats intramusclelarly injected with PTZ was 80%. MEMRI showed diffuse signal enhancement in the cerebral cortex of the cats with generalized tonic-clonic convulsive seizures compared with control animals. The enhancement rate of frontal-parietal-occipital lobe was 34.6% and 22.9% in temporl lobe compared with the control groups. Signal enhancement on frontal-parietal lobe persisted for 24 h after epileptic seizures were induced. The neurons of enhanced encephalic regions showed obvious degeneration and necrosis. Conclusion： Seizures can be induced in cats by intramuscular injection of PTZ （55 mg/kg）. Frontal-parietal lobe is the correlated encephalic regions of epilepsy. MEMRI plays an important role in localizing and revealing pathogenesis of epileptic seizures.     

卵巢颗粒细胞凋亡与多囊卵巢综合征

关于多囊卵巢综合征的确切病因机制未明，近年来，对卵巢颗粒细胞凋亡研究取得了很大的进展。颗粒细胞凋亡在多囊卵巢综合征中的发病机制逐渐受到人们的重视。本文对此做一综述，为多囊卵巢综合征的病因研究提供相关的理论依据。     

亲环素配体研究进展

综述近年来亲环素配体在构效关系研究、合成及应用方面的进展,展望了今后的研究动向。亲环素是一类具有肽基脯氨酸顺反异构酶活性的免疫亲和素,广泛分布于各种组织细胞内。它参与脯氨酸肽键的顺反异构化、线粒体膜通透性转变、细胞内及细胞间信号传导等多种生理活动。亲环素配体是与亲环素有一定结合能力的化合物。目前研究的亲环素配体主要是具有免疫抑制或细胞保护作用的抑制剂。     

HIV蛋白酶抑制剂研究进展

艾滋病 (acquiredimmunodeficiencysyndrome,AIDS)是由人免疫缺陷病毒(humanimmunodeficiencyvirus,HIV)感染导致人体免疫机能缺陷,而易于发生机会性感染和肿瘤的临床综合征 [1]。在过去的20多年里造成2 000多万人死亡,目前全世界艾滋病病毒感染者已达4 000万左右 [2]。自     

天王补心丹治疗老年癃闭的体会

通过对老年癃闭的病因病机以及天王补心丹方证的分析，介绍天王补心丹用于治疗老年癃闭的临床体会，并举临证医案以佐证。