解毒化瘀中药组方对免疫低下模型小鼠免疫功能的影响

目的：探讨解毒化瘀中药组方对免疫低下模型小鼠免疫功能的影响。方法采用地塞米松诱导小鼠免疫力低下模型,与正常对照组（无菌水）、阳性对照组（左旋咪唑）相比较,体内外检测不同剂量中药组方（体内剂量分别为2.4、4.8和7.2 g/kg,体外剂量分别为25、50和100 mg/L）对T、B淋巴细胞,NK细胞增殖程度及细胞活力的影响。淋巴细胞、NK细胞增殖率采用MTT法测定,NK细胞的杀伤活性以杀伤百分率表示。结果在体内,与正常对照组相比,无ConA诱导下,不同剂量中药组均可明显促进T淋巴细胞增殖（P＜0.01）;ConA诱导下,7.2 g/kg组使T淋巴细胞明显增殖（P＜0.01）;各剂量中药组方对LPS诱导的B淋巴细胞有增殖作用,2.4和4.8 g/kg中药组对NK细胞杀伤率有提高。在体外,在有或无ConA诱导下,50和100 mg/L中药组使T淋巴细胞增殖,100 mg/L组可促进B淋巴细胞增殖（P＜0.01）;各剂量组对NK细胞增殖及杀伤率无明显影响。结论该中药组方可通过对T、B淋巴细胞的增殖及提高NK细胞的杀伤力来提高免疫力低下小鼠的免疫功能。     

恶性疟原虫FCC-1/HN株DNA疫苗 在小鼠体内的免疫反应

:【目的】探讨恶性疟原虫DNA疫苗在小鼠体内的免疫反应。【方法】将恶性疟原虫FCC 1/HN株重组质粒pcDNA3 Pfs2 5及 pcDNA3 EBA175 /HRPⅡ经骨骼肌途径分别单独注射或两者混合注射免疫BALB/c小鼠 ,观察免疫后不同时间点血清中IgG抗体滴度、脾淋巴细胞增殖反应、CD4 /CD8 T细胞亚群比值和NK细胞杀伤活性的变化。【结果】pcD NA3 EBA175 /HRPⅡ与 pcDNA3 Pfs2 5分别单独肌肉注射或两者混合肌肉注射免疫小鼠后 ,均可见血清IgG抗体滴度增高 ;针对恶性疟原虫抗原的特异性T淋巴细胞增殖反应增强 ;CD4 /CD8 T细胞比率下降以及NK细胞杀伤活性增强。【结论】提示肌肉注射为一有效的DNA疫苗免疫途径 ,采用编码恶性疟原虫有性期阶段或无性红细胞阶段的重组质粒单独或两者混合免疫小鼠 ,均能诱导明显的体液免疫反应、细胞免疫反应和NK细胞杀伤活性。     

八珍汤对辐射损伤小鼠免疫及造血功能的影响

利用 60 Coγ射线 4Gy一次性全身照射造成小鼠骨髓损伤和免疫低下 ,观察体内给药八珍汤(BD)小、中、大 3个剂量后以上功能的恢复情况。实验结果表明 :受照后 ,骨髓中形成CFU -GM集落下降至正常水平的 12 3% ,T、B淋巴细胞增殖能力、NK细胞杀伤活性和TNF、IFN产量明显降低 ,脾脏中CD3+ 、CD4 + 、CD8+ T淋巴细胞 (% )、CD4 + /CD8+ 比值 ,外周血中CD3+ 、CD4 + T淋巴细胞 (% )、CD4 + /CD8+ 比值较正常组升高 ;中、大剂量八珍汤使受照小鼠骨髓CFU-GM集落形成提高至正常的 38%～ 4 1% ;八珍汤 3个剂量组均使T、B淋巴细胞增殖能力恢复至正常水平 ,且呈剂量依赖性增加 ;中剂量八珍汤可使照后小鼠NK细胞杀伤活性提高 ,但还未恢复至正常 ,小、大剂量八珍汤对其NK细胞杀伤活性有抑制作用 ;中剂量八珍汤可降低脾脏中CD3+ 、CD4 + 、CD8+ T淋巴细胞 (% ) ,CD8+ T淋巴细胞百分数恢复至正常 ;小剂量八珍汤降低脾脏中CD3+ 、CD4 + T淋巴细胞百分数 ;脾脏中CD4 + /CD8+ 比值只有八珍汤大剂量降低明显 ,但未恢复至正常 ;3个剂量组八珍汤均使IFN的产量恢复并超过正常水平。结果提示 :八珍汤通过保护免疫器官免受损伤 ,提高淋巴细胞功能及其细胞因子分泌功能 ,来增强机体的细胞免疫功能、体液免疫功能和非特异性免疫功     

斑蝥合剂对H22肝癌小鼠的抑瘤及免疫调节作用

目的:探讨斑蝥合剂对H22肝癌小鼠的抑瘤作用及其免疫调节的机制。方法:选择移植性肝癌H22小鼠为模型,观察斑蝥合剂的抑瘤作用,检测T淋巴细胞增殖功能、NK细胞杀伤功能、T淋巴细胞表型变化及γ干扰素、白细胞介素-4含量。结果:斑蝥合剂对荷瘤小鼠肿瘤有显著的抑制作用,抑瘤率为65.76%;斑蝥合剂治疗组小鼠T淋巴细胞转化刺激指数和NK细胞杀伤百分数均高于模型对照组(P<0.01);斑蝥合剂治疗组与模型对照组相比,斑蝥合剂治疗更能改变T淋巴细胞亚群比例;斑蝥合剂治疗组小鼠T细胞分泌γ干扰素及白细胞介素-4能力均有升高(P<0.05,P<0.01)。结论:斑蝥合剂具有抑制肿瘤生长的作用,并且对荷瘤小鼠的免疫功能有一定调节作用。其作用机制包括增强小鼠体内T细胞免疫功能、NK细胞的杀伤功能及体液免疫功能。     

芫花根总黄酮含药血清对小鼠细胞免疫功能的影响

目的建立小鼠血清中芫花根总黄酮(TFRD)各成分的HPLC测定方法,探讨TFRD含药血清对正常小鼠细胞免疫功能的影响。方法HPLC法测定小鼠单次ig给药后不同时间点血药浓度;M TT法检测多次ig给药后含药血清对正常小鼠脾淋巴细胞增殖、NK与LAK细胞杀伤活性和腹腔巨噬细胞的吞噬功能等细胞免疫功能的影响。结果单次ig TFRD后血药浓度在20~30 m in达到高峰;TFRD含药血清能促进脾淋巴细胞增殖,增加NK和LAK细胞杀伤活性,增强腹腔巨噬细胞的吞噬能力。结论TFRD含药血清能增强正常小鼠细胞免疫功能。     

普济消毒饮对小鼠免疫功能的影响

[目的]观察普济消毒饮对小鼠免疫功能的影响。[方法]NIH小鼠30只随机分成正常对照组、普济消毒饮低剂量组 (2.9 g／kg)和普济消毒饮高剂量组(11.6g/kg),各组分别按设计剂量灌胃给药,正常对照组给予等客积生理盐水,连续 7 d后处死,检测小鼠脾细胞白细胞介素2(IL-2)生成能力、自然杀伤(NK)细胞活性和脾细胞增殖能力。[结果]普济消 毒饮能增强NK细胞活性和IL-2生成能力,促进脾淋巴细胞增殖,与正常对照组比较均有显著性差异(P<0.05或P< 0.01)。[结论]普济消毒饮能提高小鼠机体免疫功能。     

玉津酒对小鼠免疫功能影响的实验研究

目的探讨玉津酒对机体免疫功能的影响。方法玉津酒0．2ml／d小鼠灌胃给药8d后，测定小鼠淋巴细胞增殖反应及IL-1活性。结果玉津酒可抑制T淋巴细胞增殖反应，降低IL-1活性，与对照组比较差异显著(P<0．01)，B淋巴细胞增殖反应低于对照组，但无显著差异(P>0．05)。结论玉津酒具有抑制细胞免疫功能的作用。     

广西灵芝对小鼠免疫功能影响的实验研究

目的：探讨广西灵芝水煎剂对正常小鼠和免疫抑制小鼠免疫功能的调节作用。方法：用不同剂量灵芝液给正常小鼠和环磷酰胺免疫抑制小鼠灌胃，检测小鼠免疫器官重量、巨噬细胞吞噬功能、T淋巴细胞增殖及NK细胞的活性。结果：灵芝水煎剂对正常小鼠免疫功能无明显影响，但能显著增加环磷酰胺免疫抑制小鼠的胸腺和脾脏重量及胸腺指数和脾指数，增加巨噬细胞吞噬功能，促进T淋巴细胞增殖和NK细胞活性。结论：灵芝水煎剂对正常小鼠免疫功能无明显影响，对环磷酰胺免疫抑制小鼠的免疫功能具有正调节作用。     

黄蘑多糖Fb对小鼠免疫功能的调节作用

目的：研究黄蘑多糖Fb(polysaccharid Fb from Huangmo)对小鼠免疫功能的调节作用。方法：健康成年小鼠40只,随机分为对照组、环磷酰胺（CTX）免疫抑制组、黄蘑碱溶性多糖活性组分（Fb）正常小鼠给药组和Fb环磷酰胺伍用（M）给药组,采用NK细胞介导的细胞毒试验测定自然杀伤细胞（NK）的活性, 淋巴细胞转化试验测定T淋巴细胞增殖功能,鼠脾T淋巴母细胞增殖分析法测定白细胞介素2（IL-2）的活性,观察Fb对各组小鼠免疫指标的影响。同时通过明胶酶谱分析检测脾脏基质金属蛋白酶（MMPs）的表达。结果:黄蘑多糖Fb能提高免疫抑制小鼠的ＮＫ细胞活性,T淋巴细胞转化率（LTT）和IL-2的活性（P<0.05）,对正常小鼠LTT有显著促进作用（P<0.01）。正常给药组和伍用组主要免疫器官脾脏和胸腺重量高于免疫抑制组,且小鼠体重增长也明显高于免疫抑制组(P<0.01);免疫抑制组小鼠脾脏MMP-2活性下降（P<0.05）,MMP-9亦呈降低趋势（P>0.05）,Fb组和M组MMP-9活性明显升高（P<0.01）。结论:黄蘑多糖Fb能提高免疫抑制小鼠免疫系统的活性并有可能保护和促进其免疫系统的修复和增生,显著提高正常小鼠T淋巴细胞转化率,其他免疫指标亦显示轻度上调作用。     

甲醛吸入对小鼠免疫功能影响的研究

目的:通过吸入染毒来观察甲醛对小鼠免疫功能的影响.方法:选用健康清洁级昆明种小鼠48只,随机分成4组,即阴性对照组、低剂量组(21mg/m3)、中剂量组(42mg/m3)和高剂量组(84mg/m3染毒组),每组12只,用静式吸入染毒方式染毒12w处死后,计算脾脏系数、胸腺系数;测定巨噬细胞吞噬功能、NK 细胞活性及脾淋巴细胞增殖反应.结果:甲醛吸入染毒可以引起小鼠脾脏系数、胸腺系数减小(P<0.05或P<0.01);巨噬细胞吞噬功能、NK细胞活性及脾淋巴细胞增殖反应均随染毒剂量的升高而下降(P<0.05或P<0.01).结论:吸入甲醛可导致小鼠免疫功能的损伤.     

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.