枸杞多糖对小鼠红细胞免疫功能的影响

目的　研究枸杞多糖 (LBP)对小鼠红细胞免疫功能的影响。方法　用形态学方法测定LBP对正常小鼠及环磷酰胺 (CY)造成的免疫抑制小鼠的红细胞C3 b受体 (RBC -C3 bR)花环率和红细胞免疫复合物 (RBC -IC)花环率的影响。结果　LBP能明显增强正常小鼠RBC -C3 bR花环率及RBC -IC花环率 ,并能使CY(2 5mg/kg× 3次 )引起下降的RBC -C3 bR花环率及RBC -IC花环率显著回升。结论　LBP能增强小鼠红细胞免疫功能 ,并对CY所致的红细胞免疫功能的抑制具有明显的拮抗作用     

大肠癌患者红细胞免疫功能研究

目的 观察大肠癌患者红细胞免疫功能变化,探讨红细胞免疫功能异常在大肠癌发生中的作用.方法 采用刘景田改进的微量全血法检测60例大肠癌患者的红细胞免疫功能,并与64例正常人对照分析.结果 大肠癌患者红细胞C3b受体花环率(RCR),红细胞C3b受体花环促进率(RFER),自然肿瘤红细胞免疫花环率(NTER)和直向肿瘤红细胞免疫花环率(DTER)明显低于正常人(P＜0.01),促肿瘤红细胞免疫花环率(ETER),协同肿瘤红细胞免疫花环率(ATER)低于正常人(P＜0.05),而红细胞免疫复合物花环率(RICR)和红细胞C3b受体花环抑制率(RFIR)则明显高于正常人(P＜0.01).结论 大肠癌患者的红细胞免疫功能低下是肿瘤形成的一个重要因素,检测其红细胞免疫功能有助于大肠癌的诊断和治疗.     

小柴胡汤对S180荷瘤小鼠红细胞免疫功能的实验研究

目的探讨小柴胡汤对荷瘤小鼠红细胞免疫功能的影响.方法复制S180荷瘤小鼠模型,通过测定小柴胡汤不同剂量组与模型组间红细胞C3b花环结合率(ERC-C3b)及红细胞免疫复合物IC花环率(ERC-IC)来分析小柴胡汤在红细胞免疫方面的作用.结果小柴胡汤中、小剂量组抑瘤率高于模型组(P ＜0.05或0.01);与模型组比较,小柴胡汤中,小剂量组ERC-C3b降低(P<0.01),而各剂量组ERC-IC都有升高趋势,但以中剂量组升高最明显(P<0.05).结论小柴胡汤有一定抑瘤作用,并对S180荷瘤小鼠红细胞免疫功能也有抑制作用,说明小柴胡汤的抑瘤作用与红细胞免疫有关.     

大蒜素对肿瘤患者细胞免疫功能的影响

目的:探讨大蒜素对肿瘤患者细胞免疫功能的影响。方法:用红细胞C3b受体花环试验(RCRR)、红细胞免疫复合物花环试验(RICR)、红细胞免疫粘附肿瘤细胞花环试验(TRCR)检测30例肿瘤患者服用大蒜素前、后1、2、3月及30例正常对照组的红细胞免疫功能。用碱性磷酸酶-抗碱性磷酸酶(APAAP)法检测30例肿瘤患者服用大蒜素前、后1、2、3月及30例正常对照组的淋巴细胞免疫功能。结果:肿瘤患者服用大蒜素前,红细胞C3b受体花环率及红细胞免疫粘附肿瘤细胞花环率显著低于对照组(P<0.05),而红细胞免疫复合物花环率显著高于对照组(P<0.01),淋巴细胞免疫功能显著低于对照组(P<0.05);服用大蒜素后,红细胞C3b受体花环率显著高于对照组(P<0.05),淋巴细胞免疫功能接近或高于对照组。结论:大蒜素能提高肿瘤患者的细胞免疫功能。     

植物营养活力素对小鼠清除血清循环免疫复合物能力的影响

目的:观察植物营养活力素(PVN)对小鼠清除血清循环免疫复合物(CIC)能力及免疫功能的影响。方法:以不同剂量的PVN喂饲小鼠,检测实验小鼠血清CIC含量及体液免疫、红细胞免疫粘附(RCIA)功能。结果:用药后实验小鼠血清CIC含量明显降低;血清总IgG和溶血素水平明显升高;红细胞C_(3b)受体(RBC—C_(3b))花环率上升、红细胞免疫复合物(RBC—IC)花环率下降。结论:PVN可明显提高小鼠清除体内CIC的能力,增强机体的体液免疫和RCIA功能,其营养作用不仅适用于植物,而且适用于动物。     

当归补血汤对红细胞免疫功能的影响

本文以红细胞C_(3b)受体酵母菌花环和红细胞免疫复合物花环试验,比较了当归补血汤及其组成药物对红细胞免疫功能的影响。复方能显著提高小鼠红细胞免疫功     

小儿肺炎红细胞免疫功能变化

采用红细胞C_(3b)受体花环率与红细胞免疫复合物花环率试验,测定了48例肺炎患儿的红细胞免疫功能。结果表明:患儿红细胞C_(3b)受体花环率与红细胞免疫复合物花环率均较健康儿下降,差别有高度显著性(P<0.01)。     

消红散对实验性肾小球肾炎小鼠红细胞免疫功能作用机制的研究

目的 研究具有益气健脾摄血功效的消红散对肾小球肾炎(GN)小鼠红细胞免疫功能的影响。方法复制免疫性GN小鼠模型，检测小鼠血中C3b受体花环率及免疫复合物(CIC)、红细胞免疫黏附促进因子(RFER)、红细胞免疫黏附抑制因子(RFIR)的变化。结果消红散能增加GN小鼠的红细胞免疫功能，使C3b受体的数目增加，促使红细胞清除免疫复合物，减少CIC在肾小球基底膜沉积，缓解炎症或CIC介导的病理过程，且能使RFER活性升高，RFIR活性下降。结论 消红散对红细胞免疫功能具有双向调节作用。     

附红细胞体对小鼠红细胞功能的影响

目的研究感染附红细胞体对小鼠红细胞功能的影响,探讨附红细胞体的致病机理。方法测定感染附红细胞体小鼠的红细胞数量、血红蛋白含量、红细胞压积、红细胞ATPase和SOD活性、红细胞C3b受体花环率和红细胞免疫复合物花环率。结果与正常组相比,感染附红细胞体小鼠的红细胞数量明显减少,血红蛋白含量降低,红细胞压积略有下降,红细胞的ATP酶的含量降低,SOD值略有下降,RBC-C3b花环率下降,RBC-IC花环率升高。结论附红细胞体侵袭红细胞导致其破裂溶血、内外阳离子平衡失调、抗氧化能力降低,同时破坏膜表面的C3b受体,膜表面游离状态的C3b受体数量明显减少,机体红细胞的免疫黏附活性降低,红细胞免疫功能低下。     

(庶虫)虫对慢性血瘀型大鼠血液流变性和红细胞免疫功能的影响

目的:观察(庶虫)虫对慢性血瘀型大鼠血液流变性和红细胞免疫功能的影响.方法:模拟阴虚火旺复制慢性血瘀大鼠模型,用毛细血管法测定不同切速下的全血比粘度、血浆比粘度,常规法测定红细胞压积.参照郭氏法测定红细胞免疫粘附功能指标,并将其与血液流变性有关指标作一相关分析.结果:(庶虫)虫能明显降低瘀血大鼠的全血比粘度、血浆比粘度和红细胞压积;提高瘀血大鼠红细胞C3b受体花环率,使红细胞免疫复合物花环率下降,血清红细胞免疫粘附促进因子活性增强,而抑制因子减弱;血液粘度与红细胞C3b受体花环率的相关分析呈显著负相关.结论:(庶虫)虫不仅有活血化瘀作用,还具有促进红细胞免疫功能的功效.     

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.