奇士乐对佐剂性关节炎大鼠的免疫调节作用

目的研究中药复方奇士乐对佐剂性关节炎(AA)大鼠的免疫调节作用。方法以弗氏完全佐剂(FCA)制备AA大鼠模型,奇士乐灌胃(ig)给药治疗AA大鼠,以雷公藤多苷片ig给药作阳性对照。四甲基偶氮唑盐比色法(MTT法)检测刀豆蛋白A(ConA)、脂多糖(LPS)诱导的AA大鼠脾淋巴细胞增殖反应;放免法测定白细胞介素(IL)-1、IL-2、IL-6、肿瘤坏死因子-α(TNF-α)、前列腺素E2(PGE2)的含量。结果奇士乐能明显抑制AA大鼠继发性足肿胀;上调ConA、LPS诱导的AA大鼠脾淋巴细胞增殖反应,促进IL-2分泌水平;同时奇士乐还可抑制AA大鼠腹腔巨噬细胞过高的IL-1、TNF-α、IL-6和PGE2的分泌。结论奇士乐对AA大鼠紊乱的免疫功能具有调节作用,其机制可能与调节细胞因子水平有关。     

痹速清合剂对佐剂性关节炎大鼠血清细胞因子水平的影响

目的 :观察痹速清合剂对佐剂性关节炎的治疗作用及对细胞因子系列 (IL 1β、TNF α、IL 4、IL 10 )的影响。方法 :将 4 0只雄性Wistar大鼠随机分为正常对照组、模型对照组、消炎痛治疗组及痹速清合剂治疗组 ,采用佐剂性关节炎 (AA)大鼠模型 ,观察各组对AA大鼠足肿胀、血清细胞因子含量及体重的影响。结果 :痹速清合剂与消炎痛均能显著抑制AA大鼠原发性及继发性关节肿胀 ,显著降低AA大鼠血清IL 1β、TNF α水平 ,升高IL 4、IL 10水平。在降低IL 1β、TNF α水平 ,增加AA大鼠体重方面作用优于消炎痛 (P <0 .0 5 )。结论 :痹速清合剂对佐剂性关节炎大鼠有明显的治疗作用 ,其作用机制可能是通过下调致炎因子 (IL 1β、TNF α)水平、上调抗炎因子 (IL 4、IL 10 )水平、抑制致炎效应、增强抗炎效应而实现的。     

IL—10对大鼠佐剂性关节炎的治疗及免疫机理探讨

形成佐剂性关节炎的动物模型，研究ＩＬ－１０的抗炎作用及其机理，结果表明，经腹腔注射ＩＬ－１０后能改善ＡＡ大鼠病情，用ＩＬ－１０治疗取得显效后，ＡＡ大鼠血清及关节液内炎症细胞因子ＩＬ－１，６，８，ＴＮＦ水平均明显下降，腹腔巨噬细胞和脾淋巴细胞分泌细胞因子的能力均受到抑制。表明ＩＬ－１０是通过抑制炎症细胞因子的产生而发挥治疗作用的。此研究为用ＩＬ－１０治疗人风湿性关节炎等难治性炎症性疾病提供了理论和实     

茜草总蒽醌抗炎抗风湿作用及机制

目的　探讨茜草总蒽醌 (TAR)对大鼠佐剂性关节炎及其细胞因子和皮质醇含量的影响。方法　建立佐剂性关节炎大鼠模型 ,观察茜草总蒽醌对AA大鼠炎症反应的影响 ,并用放射免疫法测定AA大鼠血清中IL1,IL2 ,IL6,TNF及皮质醇的含量。结果　TAR对AA大鼠多发性关节炎有明显的治疗作用 ,并降低其血清中IL1,IL2 ,IL6,TNF的含量 ,但不影响皮质醇的含量。结论　TAR通过降低AA大鼠血清中IL1,IL2 ,IL6,TNF的含量 ,抑制机体免疫反应 ,改善局部炎症反应而发挥抗炎抗风湿作用。     

滇产粗根荨麻水提取部分对佐剂性关节炎大鼠腹腔巨噬细胞分泌TNF-α的影响

目的:探讨滇产粗根荨麻水提取部分对佐剂性关节炎(adjuvant arthritis,AA)大鼠足趾肿胀及腹腔巨噬细胞(peritoneal macrophages,PMф)分泌肿瘤坏死因子-α(tumor necrosis factor-alpha,TNF-α)的影响。方法:建立大鼠佐剂性关节炎模型,脂多糖(lipopolysaccharide,LPS)诱导大鼠腹腔巨噬细胞分泌TNF-α,用酶联免疫吸附法检测。结果:滇产粗根荨麻水提取部分(400mg/kg,200mg/kg)能明显抑制佐剂性关节炎大鼠的足肿胀,并降低大鼠腹腔巨噬细胞分泌TNF-α水平。结论:滇产粗根荨麻水提取部分对佐剂性关节炎的治疗作用可能与其抑制腹腔巨噬细胞分泌TNF-α有关。     

原花青素对佐剂性关节炎大鼠腹腔巨噬细胞iNOS表达的影响

目的：研究原花青素对佐剂性关节炎大鼠腹腔巨噬细胞诱导型一氧化氮合成酶（iNOS）基因表达的影响。方法：建立大鼠佐剂性关节炎（AA）模型。硝酸还原酶法测大鼠关节液中NO的含量；RT-PCR和Western blot分别检测大鼠腹腔巨噬细胞内iNOS mRNA和蛋白的表达；同时EHSA检测大鼠血清中细胞因子IL-1β、TNF-α的含量。结果：原花青素显著减低AA大鼠足跖炎症组织中NO的含量以及血清中IL-1β、TNF-α的水平，同时下调AA大鼠腹腔巨噬细胞iNOS mRNA和蛋白的表达。结论：原花青素对大鼠佐剂性关节炎的抗炎作用可能与其降低TNF-α和IL-1β的水平，抑制iNOS的mRNA和蛋白表达从而减少NO的释放有关。     

7,3′-二甲氧基橙皮素对佐剂性关节炎大鼠免疫功能的影响

目的研究7,3’-二甲氧基橙皮素(DMHP)对佐剂性关节炎(AA)大鼠免疫功能的影响。方法弗氏完全佐剂诱导大鼠AA模型,从造模第12天开始灌胃给予DMHP(22、44、88 mg/kg),连续12 d,MTT法检测刀豆蛋白A诱导的脾淋巴细胞增殖反应;酶联免疫吸附法测定脾淋巴细胞产生白介素-2(IL-2)的水平以及腹腔巨噬细胞(PMΦ)分泌的IL-1、IL-10、肿瘤坏死因子-α(TNF-α)水平;RT-PCR检测PMΦIL-1、IL-10、TNF-αmRNA的表达。结果 DMHP(44、88 mg/kg)能明显纠正AA大鼠低下的脾淋巴细胞增殖反应和脾细胞IL-2的产生;各剂量DMHP能不同程度地从基因和蛋白水平降低AA大鼠PMΦ产生过高的IL-1、TNF-α水平,同时上调AA大鼠PMΦ产生过低的IL-10水平。结论 DMHP体内给药能改善AA大鼠异常免疫功能,恢复细胞因子网络平衡,这可能是其治疗AA大鼠的机制之一。     

IL－10对大鼠佐剂性关节炎的治疗及免疫机理探讨

形成佐剂性关节炎（ＡＡ）的动物模型，研究ＩＬ－１０的抗炎作用及其机理。结果表明，经腹腔注射ＩＬ－１０后能改善ＡＡ大鼠病情，用ＩＬ－１０治疗取得显效后，ＡＡ大鼠血清及关节液内炎症细胞因子ＩＬ－１，６，８，ＴＮＦ水平均明显下降，腹腔巨噬细胞和脾淋巴细胞分泌细胞因子的能力均受到抑制。表明ＩＬ－１０是通过抑制炎症细胞因子的产生而发挥治疗作用的。此项研究为用ＩＬ－１０治疗人风湿性关节炎（ＲＡ）等难治性炎症性疾病提供了理论和实验依据     

Effect of 7, 3′-dimethoxy hesperetin on immune function in rats with adjuvant arthritis

目的 研究7,3′-二甲氧基橙皮素(DMHP)对佐剂性关节炎(AA)大鼠免疫功能的影响.方法 弗氏完全佐剂诱导大鼠AA模型,从造模第12天开始灌胃给予DMHP(22、44、88 mg/kg),连续12 d,MTT法检测刀豆蛋白A诱导的脾淋巴细胞增殖反应;酶联免疫吸附法测定脾淋巴细胞产生白介素-2(IL-2)的水平以及腹腔巨噬细胞(PMΦ)分泌的IL-1、IL-10、肿瘤坏死因子-α(TNF-α)水平;RT-PCR检测PMΦ IL-1、IL-10、TNF-α mRNA的表达.结果 DMHP(44、88 mg/kg)能明显纠正AA大鼠低下的脾淋巴细胞增殖反应和脾细胞IL-2的产生;各剂量DMHP能不同程度地从基因和蛋白水平降低AA大鼠PMΦ产生过高的IL-1、TNF-α水平,同时上调AA大鼠PMΦ产生过低的IL-10水平.结论 DMHP体内给药能改善AA大鼠异常免疫功能,恢复细胞因子网络平衡,这可能是其治疗AA大鼠的机制之一.     

燮痹方对佐剂大鼠Th1/Th2型细胞因子的调节作用

目的 :探讨燮痹方抑制大鼠佐剂性关节炎与调节Th1/Th2型细胞因子平衡作用。方法 :采用具有平调寒热、燮理阴阳、通经除痹作用的燮痹方 ,以火把花根为阳性对照组 ;建立AA大鼠模型 ,随机分为燮痹方高剂量组、燮痹方低剂量组、芬必得组、火把花根片组、模型组、正常组 6组 ,观察各组对大鼠关节肿胀度和Th1/Th2型细胞因子及IL 1β、IL 2、TNF α的影响。结果 :燮痹方各组与模型组、火把花根片组、芬必得组相比 ,能显著减轻关节肿胀度 ,明显降低IL 1β、TNF α ,尤其能明显降低IFN γ/与IL 4比值。结论 :燮痹方能提高抗炎作用 ,并与调节Th1/Th2型细胞因子失衡有关。     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.