益肺活血颗粒对缺氧大鼠肺动脉平滑肌细胞内低氧诱导因子-1α和活性氧的影响

目的观察益肺活血颗粒对低氧培养大鼠肺动脉平滑肌细胞（pulmonaryarterysmoothmusclecells,PASMCs）内低氧诱导因子-1αhypoxiainduciblefactor一1alpha,HIF-1α和活性氧（Feacriveoxygenspecies,ROS）的影响。方法采用血清药理学方法制备不同浓度的益肺活血颗粒（yifeihuoxuegranule,YFHXG）含药血清,采用组织块贴壁法原代培养大鼠PASMCs,取对数生长期PASMCs随机分为常氧组、缺氧组、缺氧＋YFHXG组（16．5、3．3、0．66g／kg）。用噻唑蓝比色法测定各组PASMCs的增殖效应,免疫组化法测定细胞内HIF-1α蛋白的表达,激光共聚焦显微镜测定细胞内ROS的含量。结果与常氧组相比,缺氧组PASMCs增殖明显活跃,HIF-1α蛋白表达及ROS含量增加;与缺氧组相比,缺氧＋YFHXG高、中浓度组大鼠PASMCs的生长明显受抑制,而且HIF-1α蛋白表达及ROS含量降低。结论缺氧可以直接刺激PASMCs的增殖。YFHXG可以显著抑制低氧对大鼠PASMCs的促增殖作用,其机制可能是通过降低细胞内HIF-1α蛋白表达及ROS的水平来实现的。     

动态监测血清IL-6、TNF-α对新生儿缺氧缺血性脑病的临床意义

目的探讨动态监测血清IL-6、TNF-α水平对判断缺氧缺血性脑病(HIE)新生儿病情严重程度及预后的意义。方法对60例入组的HIE患儿根据病情轻重分为轻度组(21例)、中度组(21例)及重度组(18例)三组,选择同期在我院产科分娩的正常新生儿20例作为对照组,采用酶联免疫吸附法测定急性期、恢复期患儿及对照组新生儿的血清白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)水平。结果正常新生儿血清IL-6、TNF-α水平极低,HIE急性期各组患儿血清IL-6、TNF-α水平均显著升高,其中以重度HIE组升高最为明显,四组比较差异有显著统计学意义(P<0.01);HIE恢复期患儿血清IL-6、TNF-α水平下降至正常水平。结论 HIE患儿血清IL-6、TNF-α水平与疾病严重程度有明显的相关性,动态监测血清IL-6、TNF-α水平变化趋势有助于HIE新生儿的预后判断。     

北海地区新生儿脐血血红蛋白电泳实验结果分析

目的了解北海地区新生儿地中海贫血的发病率,为临床诊断及预防提供依据。方法对本院2006年7月～2010年6月共5766份新生儿脐血标本进行琼脂糖电泳,并对Hb区带进行扫描定量分析。结果在5766份脐血标本中,检出Hb Bart阳性（≥1.0%）437例,阳性率为7.579%。根据Hb Bart含量推算,静止型、标准型α-地中海贫血、HbH病、HbBart胎儿水肿综合征的阳性率分别为2.099%、5.376%、0.087%和0.017%。另外发现异常血红蛋白病共17例,发生率为0.295%,其中HbE11例,HbG2例,HbC-S1例,HbJ 2例,HbK1例。结论北海市属于地中海贫血高发区,使用全自动电泳仪对脐血定量检测分析能早期、方便地对新生儿α-地中海贫血进行筛查。     

蛇床子素抑制血栓形成及其作用机制研究

目的研究蛇床子素抑制血栓形成及其可能的作用机制。方法利用大鼠静脉血栓形成模型和动-静脉旁路血栓形成模型测定给予蛇床子素10mg／kg、20mg／kg、40mg／kg后血栓湿重和干重，同时在动-静脉旁路血栓形成模型中测定大鼠血清NO含量，血浆TXB2和6-keto—PGF1α的含量。结果蛇床了素20mg／kg、40mg／kg组可以明显抑制大鼠静脉血栓形成，减轻血栓湿重和于重；蛇床子素10mg／kg、20mg／kg、40mg／kg组可以明显抑制大鼠动-静脉旁路血栓形成，减轻血栓湿重和干重，同时增加血清中NO的含量，降低血浆中TXB2的含量和增加血浆中6-keto—PGF1α的含量。结论蛇床子素可明显抑制大鼠血栓形成．其作用机制可能与增加血清中NO的含量，降低血浆中TXB2的含量和TXB2/6-keto—PGF1α的比值有关。     

参茸益精片对高原脑水肿血清IL-1β、TNF-α、MMP-9 水平的影响

 目的 观察参茸益精片对高原脑水肿患者血清中白介素-1β(IL-1β)、基质金属蛋白酶-9(MMP-9)、肿瘤坏死因子-α(TNF-α)水平的影响。方法 高原脑水肿患者给予高压氧、降颅压、维持水电解质平衡、吸氧等基础治疗。随机分组:31例同时服用参茸益精片(观察组),30例不加用参茸益精片(对照组),两组治疗14 d后,通过ELISA及免疫荧光干式定量法测定各组患者血清中IL-1β、MMP-9、TNF-α含量水平。于治疗14 d后根据Glasgow评分进行临床疗效评定。结果 参茸益精片治疗前,两组血清中IL-1β、MMP-9、TNF-α水平差异无统计学意义,参茸益精片治疗14 d后,上述因子水平均显著降低 (P<0.01)。结论 参茸益精片可以降低高原脑水肿患者血清中IL-1β、MMP-9、TNF-α含量,可减轻缺氧损伤,提高临床疗效。     

地塞米松对TNF -α诱导的H460细胞增殖的影响

目的:观察地塞米松对TNF -α诱导的肺癌H460细胞增殖的影响.方法:体外培养H460细胞,经TNF -α刺激后,随机分为对照组和实验组,对照组用不含地塞米松的DMEM培养液培养,实验组则分别加入含不同浓度地塞米松的DMEM培养液.通过MTT比色实验观察各组的值.结果:TNF -α( 12.5～100 ng/ml)可...     

消银颗粒治疗血虚风燥型白疕临床观察及对肿瘤坏死因子的影响

目的:观察"消银颗粒"治疗血虚风燥型白疕的疗效及探讨其作用机制。方法:随机将120例白疕患者分为治疗组与对照组,治疗组内服"消银颗粒"治疗,对照组内服迪银片;检测患者治疗前后肿瘤坏死因子(TNF-α)的水平,并和正常对照组比较。两组均以1个月为1个疗程,2个疗程后进行疗效判定。结果:治疗组60例基本痊愈37例,显效11例,有效7例,无效5例,对照组60例基本痊愈24例,显效13例,有效8例,无效15例,治疗组基本痊愈率及总有效率均高于对照组(P<0.05)。两组治疗后TNF-α较治疗前降低,治疗组优于对照组(P<0.05)。结论:"消银颗粒"是一种治疗银屑病的有效方法,可能通过降低患者血清TNF-α水平起作用。     

Modulating effect of ginger extract on rats with ulcerative colitis

ETHNOPHARMACOLOGICAL RELEVANCE: Ginger rhizomes are used traditionally for management of different gastrointestinal disturbances. Several studies proved that the rhizome possesses diverse biological activities such as cytotoxic, antioxidant, and anti-inflammatory effects. Recently, interest in ginger for treatment of chronic inflammatory conditions has been renewed. AIM OF THE STUDY: The purpose of the present study is to evaluate the potential role of ginger extract [GE] in modulating the extent and severity of ulcerative colitis (UC), a chronically recurrent inflammatory bowel disease of unknown origin. MATERIALS AND METHODS: Male Wistar rats received 3 different doses of GE, sulfasalazine, or vehicle for 3 consecutive days before induction of UC by intra-rectal acetic acid administration, and continued further for 7 days after the induction. The colonic mucosal injury was assessed by macroscopic scoring, and histological examination. Furthermore, the mucosal content of malondialdehyde (MDA), protein carbonyl (PCO), and reduced glutathione (GSH) with the catalase (CAT) and superoxide dismutase (SOD) activity, were appraised as parameters of the redox state. Acute inflammatory response was determined by measuring myeloperoxidase (MPO), tumor necrosis factor (TNF-alpha), and prostaglandin E2 (PGE2). RESULTS: All parameters were altered in ulcerated rats, and improved in animals receiving GE, an effect that was comparable to that of the standard sulfasalazine, especially at the highest dose level. Colonic mucosal injury parallels with the histological and biochemical evaluations. CONCLUSIONS: Results showed a valuable effect of ginger extract against acetic acid-induced ulcerative colitis possibly by its antioxidant and anti-inflammatory properties.     

Inhibition of pro-inflammatory mediators and tumor cell proliferation by Anisomeles indica extracts

Anisomeles indica (L.) Kuntze (Labiatae), is a traditional anti-inflammatory herb used in Taiwan. The aqueous and methanolic extracts of whole plants, leaves, flowers and stems; and chloroform and n-butanol fractions of methanol extract, from A. indica were investigated for their anti-inflammatory activity on murine peritoneal macrophages. In addition, the tumor cells proliferation inhibition activities of these extracts were also evaluated against a panel of tumor cell lines such as Colon 205, PC 3, HepG2 and MCF 7. Treatment with A. indica extracts did not reduce cell viability at any dose used. However, all the extracts significantly inhibited the enhanced production of NO radicals, and pro-inflammatory cytokines (TNF-alpha, and IL-12) induced by LPS/IFN-gamma in a dose-dependent manner. Furthermore, methanolic extracts of leaves and flowers significantly and dose-dependently arrest mitogen-stimulated spleen cells in G0/G1 stage, in addition to their cell proliferation inhibition against Colon 205, MCF 7 and PC 3 by 94, 82; 98, 71; 82, 98%, respectively, at 200 microg/mL concentration. This is the first report on A. indica extracts for their growth inhibitory activities, against inflammatory mediator production, and human tumor cell lines, colon, prostate, hepatoma and breast cells proliferation.     

Effect of traditional Chinese medicine Shu-Mai-Tang on attenuating TNFalpha-induced myocardial fibrosis in myocardial ischemia rats

Shu-Mai-Tang (SMT) is a traditional Chinese medicine for treatment of ischemic heart disease. The effect of SMT on inflammation-induced myocardial fibrosis, left ventricular (LV) remodeling, and the potential mechanism in myocardial ischemia (MI) rats were investigated. Rats with ligated left anterior descending coronary artery (MI model) were randomly divided into three groups (SMTL, SMTH, and MIR). A group undergoing Sham operation (Sham; n=16) was also included. SMT (342 or 1710 mg/kg for SMTL or SMTH groups, respectively) was orally administered daily for 1 and 6 weeks. Cardiac function, myocardial fibrosis, serum tumor necrosis factor-alpha (TNFalpha) concentration, the cardiac expressions of phosphorylated p38 MAPK and tissue inhibitor of matrix metalloproteinase (TIMP)-1 and TNFalpha were examined by echocardiography, histological staining, radioimmunoassay, western blot, respectively. In the present study, significant reduced myocardial fibrosis, as well as decreased phospho-p38 MAPK, TIMP-1, and TNFalpha proteins, and serum TNFalpha level, accompanied by improved cardiac function in the SMT-treated rats in a dose-dependent manner as compared with the MIR. These results suggested that SMT could anti-inflammation-induced myocardial fibrosis and reverse LV remodeling in MI rats, and the mechanism may be related to the effect of SMT on inhibiting p38 MAPK signaling pathway.