子宫内膜间质细胞体外培养模型的建立

目的：探索在位子宫内膜间质细胞体外分离、纯化、培养的方法,从而建立研究子宫内膜异位症（EMs）的体外细胞模型。方法：选择因子宫肌瘤或子宫腺肌症行子宫（次）全切除术的病例38例,术中取其子宫内膜,通过酶解、过滤、贴壁纯化等技术,分离培养子宫内膜间质细胞并进行传代。结果：36例标本获得成功,分离纯化得到的子宫内膜间质细胞经角蛋白、波形蛋白染色证实纯度达95％以上,活性较强,可以有限传代,传代培养的细胞形态特征与原代细胞一致。结论：该方法可以高效简便地分离在位子宫内膜间质细胞,得到的间质细胞产量及纯度高,可以作为 EMs 的体外细胞模型之一。     

人子宫内膜异位症异位及在位内膜间质细胞分离与培养

目的：建立子宫内膜异位症（EMs）异位、在位内膜间质细胞的体外细胞模型,实时观察间质细胞形态变化。方法胶原酶消化异位、在位内膜组织,二次筛网过滤结合低速离心法分离纯化间质细胞,应用免疫细胞化学染色进行细胞鉴定,并进行传代培养,观察细胞生长状况及细胞形态差异。结果培养成功率91．3％,间质细胞纯度达95％;异位间质细胞9代内、在位及对照组间质细胞11代内,细胞形态及活性并无明显改变。结论子宫内膜间质细胞可为子宫内膜异位症研究提供较好的细胞模型。     

人子宫内膜细胞原代培养方法的改良

目的 寻求一种简便高效的人子宫内膜上皮细胞和间质细胞分离、纯化与鉴定方法,建立稳定的子宫内膜细胞体外培养体系.方法 简化Ryan等的子宫内膜细胞原代培养方法的取材,分离和培养条件,分离出高纯度的子宫内膜上皮细胞和间质细胞进行体外培养和传代.结果 培养成功的子宫内膜上皮细胞与间质细胞均可稳定传代,体外生长10～50 d,纯度均达90%以上.结论 该方法简便高效,可建立稳定的人子宫内膜细胞体外培养体系.     

人在位和异位子宫内膜腺上皮细胞和间质细胞的原代培养

目的:探讨在位和异位子宫内膜腺上皮细胞和间质细胞分离培养方法,为研究子宫内膜异位症的发病机制提供体外细胞模型.方法:通过消化、过滤、沉降等方法,分离培养正常对照子宫内膜以及子宫内膜异位症在位、异位子宫内膜腺上皮细胞和间质细胞,模拟人体内雌激素水平研究促进细胞生长的方法,光学显微镜观察离体细胞形态.结果:正常对照子宫内膜细胞分离培养成功率达91.7%(11/12),子宫内膜异位症在位子宫内膜细胞成功率为93.8%(15/16),子宫内膜异位症异位子宫内膜细胞成功率为75.0%(12/16).间质细胞传代2次后,生长缓慢,经雌激素作用后,生长明显改善;腺上皮细胞不能传代,经雌激素作用后,生长改善不明显.结论:体外分离培养的人子宫内膜细胞比子宫内膜异位动物模型更接近于人体的特点,在位和异位子宫内膜腺上皮细胞和间质细胞分离培养可作为研究子宫内膜异位症的体外细胞模型之一.     

高纯度分离子宫内膜腺上皮及间质细胞和体外培养技术

【目的】探索一种简便、高纯度分离在位子宫内膜腺上皮细胞和间质细胞的方法,建立高纯度体外子宫内膜细胞培养模型。【方法】选择正常的新鲜子宫内膜组织20例,通过酶解,过滤及贴壁纯化等技术,每例均用Ryan方法(对照组)及改良的新方法(改良组)分离、纯化及培养子宫内膜腺上皮细胞及间质细胞,并进行传代。【结果】18例标本获得成功,对照组分离的间质细胞纯度为(84.22±5.17)%,腺上皮细胞纯度为(62.11±6.23)%;改良组分离的间质细胞纯度达(97.89±0.96)%,腺上皮细胞纯度(95.12±2.11)%,与对照组比较,差异有显著性意义(P<0.01)。【结论】改良方法简便,可高纯度分离子宫内膜腺上皮细胞及间质细胞。在体外建立高纯度子宫内膜细胞培养模型,更利于在细胞和分子水平上研究子宫内膜的各种功能及干预调节。     

异位子宫内膜间质细胞的分离培养及MMP2 9的表达和调节

目的：建立异位子宫内膜间质细胞分离培养方法,探讨异位子宫内膜间质细胞MMP2、MMP9的表达及调节。方法：收集16例子宫内膜异位症患者的异位内膜进行体外细胞分离及培养,用含肿瘤坏死因子α（TNF-α）的培养液诱导培养24小时,设立对照组,应用免疫组化及明胶酶谱法检测各组细胞中MMP2、MMP9蛋白的表达变化及其培养上清液中MMP2、MMP9的含量。结果：异位子宫内膜细胞中持续表达MMP2、MMP9,与对照组相比,异位内膜间质细胞经TNF-α作用后MMP9表达增高,培养上清液中MMP9的含量也显著增加。结论：成功分离培养了16例异位内膜间质细胞;异位内膜间质细胞持续分泌MMP2、MMP9;TNF-α可诱导MMP9的表达升高,这可能与异位子宫内膜间质细胞的侵袭转移密切相关。     

高纯度子宫内膜细胞分离和体外培养技术及其应用

目的：分离、纯化子宫内膜间质细胞（ESC）和腺上皮细胞，建立体外ESC蜕膜化模型。方法：选择正常育龄妇女的新鲜子宫内膜组织，经多酶消化制成细胞悬液，分离、纯化间质细胞和腺上皮细胞；分别培养至细胞聚合成片，随机分组，用等渗浓度的甾体激素诱导ESC体外蜕膜化改变。结果：分离的间质细胞其纯度达95%以上，其细胞活力达92%——95%。在此体外培养系统中，ESC对生理剂量激素的应答出现与活体相仿的蜕膜化改变。结论：利用此技术可在细胞和分子水平上研究子宫内膜的各种功能及其调节。     

人正常子宫内膜原代腺上皮细胞的优化分离和培养

目的 优化人正常子宫内膜腺上皮细胞分离和原代培养的方法,提供子宫内膜相关疾病研究的体外细胞模型。方法 采用酶消化、筛网过滤、离心的方法体外分离和培养人子宫内膜腺上皮与间质细胞。腺上皮细胞鉴定采用光学显微镜下观察细胞形态;免疫细胞荧光及免疫细胞化学法检测上皮细胞角蛋白(CK)和间质细胞波形蛋白(Vim)的表达。结果 经诊刮获得的18份标本中有17份分离培养成功;细胞形态符合腺上皮细胞特征,CK免疫荧光及免疫化学染色阳性,Vim染色阴性,纯度达90%以上;正常原代人子宫内膜腺上皮细胞不能传代,培养5～6d后细胞逐渐衰老。结论 改良后的原代培养方法取材简单,克服了污染问题,可获得高纯度及足够数量的人正常子宫内膜腺上皮细胞作为体外实验模型。     

子宫内膜异位症在位子宫内膜间质及腺上皮细胞高纯度分离培养技术的改进

目的对子宫内膜异位症(EMs)患者在位子宫内膜间质及腺上皮细胞进行高纯度分离、培养,改进子宫内膜细胞常规培养方法。方法通过酶解、过滤及贴壁纯化,分离和培养7例EMs组及5例正常组在位子宫内膜间质及腺上皮细胞,其中延长EMs组子宫内膜细胞消化时间及缩短其后的贴壁等待时间。结果 12例子宫内膜标本中10例培养成功,原代培养的间质细胞纯度率可达97%以上,原代培养的腺上皮细胞纯度率约95%。改良分离方法后获得的EMs组和正常组的间质及腺上皮细胞纯度及活性均提高。结论 EMs在位子宫内膜分离过程中延长消化时间及缩短贴壁时间,可作为对子宫内膜常规培养方法的改进。     

分离培养子宫内膜腺上皮和间质细胞方法的改进

目的:探索一种获得高产量、高纯度子宫内膜腺上皮细胞和间质细胞的分离培养方法.方法:通过高浓度胶原酶和DNase联合消化、过滤及贴壁纯化等技术,分离培养30例子宫内膜腺上皮和间质细胞,并拟传代.结果:29例标本培养成功,每1g子宫内膜组织约可分别得到(40～50)×106个腺上皮细胞和(40～50)×106个间质细胞,细胞产量高.并且腺上皮细胞纯度率约96%,间质细胞纯度率达98%以上.间质细胞可以有限传代,腺上皮细胞不能传代.结论:通过改良步骤,可提高腺上皮和间质细胞产量,同时保证了其纯度及活性,不失为一种较理想的子宫内膜细胞分离培养方法.     

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.