石楠藤提取物对急性出血坏死性胰腺炎大鼠治疗作用的实验研究

作者报道中药石楠藤提取物对急性出血坏死性胰腺炎（ＡＨＮＰ）大鼠治疗作用的实验研究。将１００只ＳＤ大鼠随机分为三组：①假手术组（ＳＯ组）；②ＡＨＮＰ组（ＡＰ组），该组动物在ＡＨＮＰ诱发后，不做特殊治疗；③石楠藤提取物治疗组（ＳＮ组）。该组动物在ＡＨＮＰ诱发后１０分钟经腹腔内注射石楠藤提取物（１％石楠藤提取物５ｍｌ／ｋｇ体重）。结果表明：ＳＮ组血清淀粉酶值明显下降（ＳＮ组１６１３０±５０３０Ｕ／Ｌ６ｈ、１９２９０±５３８０Ｕ／Ｌ１２ｈｖｓＡＰ组２３７８０±３９６０Ｕ／Ｌ、２８４７０±４１５０Ｕ／Ｌ，Ｐ＜０．０１）。血中ＰＡＦ含量明显降低（ＳＮ组１．３±０．３０ｎｇ／ｍｌ１ｈ、２．０±０．３４ｎｇ／ｍｌ６ｈ、２．１±０．３２ｎｇ／ｍｌ１２ｈｖｓＡＰ组２．２±０．２５ｎｇ／ｍｌ、６．１±０．４２ｎｇ／ｍｌ、１０．１±０．５３ｎｇ／ｍｌ，ｐ＜０．０１）。血浆内毒素含量明显下降（ＳＮ组６９．９±７．２ＥＵ／Ｌ、６ｈ、９１．１±８．４ＥＵ／Ｌ、１２ｈｖｓＡＰ组９８．４±６．９ＥＵ／Ｌ、１５１．７±９．１ＥＵ／Ｌ，Ｐ＜０．０１）。石楠藤提取物治疗组术后平均存活时间明显长于ＡＰ组（ＳＮ组：４３．５ｈ，ＡＰ组１１．５ｈ，ｐ＜０     

L-精氨酸对异丙肾上腺素致害心肌的影响

目的：为探讨Ｌ－精氨酸（Ｌ－Ａｒｇ）对异丙肾上腺素（ＩＳＰ）致害心肌的影响。方法：将大鼠随机分为４组：ＩＳＰ组，ＩＳＰ４０ｍｇ／ｋｇ·ｄａｙ×２，皮下注射；对照组，体重匹配的大鼠注射同容量的生理盐水；Ｌ－Ａｒｇ组腹腔注射Ｌ－Ａｒｇ１．５ｇ／ｋｇ·ｄ×２；ＩＳＰ＋Ｌ－Ａｒｇ组。结果：ＩＳＰ处理的大鼠心重／体重比值、心肌内ＮＯ、钙的水平以及血清ＬＤＨ、ＮＯ水平高于对照组（ｐ＜０．０５），而心肌中ＧＳＨ－ＰＸ及Ｌ－Ａｒｇ水平低于对照组（ｐ＜０．０５），Ｌ－Ａｒｇ可部分逆转ＩＳＰ致心肌肥厚，心肌中ＮＯ、钙、Ｌ－Ａｒｇ、ＧＳＨ－ＰＸ及血清ＬＤＨ、ＧＳＨ－ＰＸ水平的变化。结论：Ｌ－Ａｒｇ对ＩＳＰ致害心肌有抗损伤的作用。     

分枝杆菌多糖对小鼠造血功能的影响

观察了分枝杆菌多糖（ＭＰＳ）对环磷酰胺抑制ＢＡＬＢ／ｃ小鼠骨髓作用的影响。结果表明：给予ＣＰＡ使小鼠骨髓ＧＭ－ＣＦＵ抑制约３０％左右。１．０ｍｇ／ｋｇ的ＭＰＳ对ＧＭ－ＣＦＵ有促进作用（第１批实验ＣＰＡ对照组３１６．５±３４．６，实验１组４５４．５±１９．１，Ｐ＜０．０５；第２批实验ＣＰＡ对照组２０８．７±４３．７，实验２组４３７．８±５４．１，Ｐ＜０．０２）；而０．１５ｍｇ／ｋｇＭＰＳ无促进作用。在０．１５和１．０ｍｇ／ｋｇ剂量下，小鼠血清ＧＭ－ＣＳＦ活性水平明显提高；０．１５和１．０ｍｇ／ｋｇＭＰＳ可分别刺激小鼠每０．１ｍＬ血清产生５００Ｕ和８５０ＵＧＭ－ＣＳＦ。分析认为ＭＰＳ与日本的Ｚ－１００活性水平相当，这些作用可能通过激活单核或Ｔ细胞而间接产生。     

人胃、十二指肠粘膜SS，AVP，EK和β－EP含量测定及其临床意义

作者应用放免分析法对２４例十二指肠溃疡（ＤＵ），１５例胃溃疡（ＧＵ）患者胃、十二指肠粘膜进行了生长抑素（ＳＳ），精氨酸加压素（ＡＶＰ）、脑啡肽（ＥＫ）和β－内啡肽（β－ＥＰ）含量测定．同时以２０例慢性浅表性胃炎（ＣＳＧ）为对照．结果表明，ＤＵ患者球、窦和体部粘膜ＳＳ含量（依次为１５３．５±２７．５，３３０．９±２３．９和１７７．１±３０．９ｐｇ／ｍｇ）显著低于（Ｐ＜０．０５）对照（依次为２５３．７±３４．２，５８８．９±８５．３和２８８．８±４０．５ｐｇ／ｍｇ），ＥＫ（依次为９８．６±１３．２，１０８．２±１６．５和５８．５±１０．３）和β－ＥＰ（依次为１１３．０±２２．６，８８．７±１６．８和８２．８±１８．８ｐｇ／ｍｇ）显著高于（Ｐ＜０．０１）对照（ＥＫ依次为５０．１±８．８，６２．９±１１．４和３０．９±３．０；β－ＥＰ依次为８２．３±８．１，３９．８±６．８和４９．８±９．１）．ＤＵ患者球部粘膜ＡＶＰ（５２．３±７．０ｐｇ／ｍｇ）显著高于（Ｐ＜０．０５）ＣＳＧ（３７．７±４．３ｐｇ／ｍｇ）．ＧＵ组上述激素含量与对照组比较均无显著差异．提示：①ＡＶＰ，ＳＳ，ＥＫ和β－ＥＰ在人胃、十二指肠皆有分布；②粘     

安替可胶囊抗肿瘤作用的机理

目的：探讨安替可（Ａｎｔｉｋｅ）胶囊抗肿瘤的作用机理．方法：采用移植瘤模型、常规体液和细胞免疫测定、细胞毒结晶紫染色、比色及同位素参入等方法，观察Ａｎｔｉｋｅ及其组分蟾皮（ＳＴ）和当归（ＡＳＤ）的抗肿瘤作用、诱导ＴＮＦ、ＮＫＣ、ＩＬ－２活性、血中过氧化氢酶（ＣＡＴ）、谷胱甘肽过氧化物酶（ＧＳＨ－Ｐｘ）和组织中超氧化物歧化酶（ＳＯＤ）含量及脾和瘤细胞中３Ｈ－ＵＲ参入ｃｐｍ等指标．结果：①Ａｎｔｉｋｅ，ＳＴ和ＡＳＤ及５－Ｆｕ对Ｈ２２移植瘤的瘤重抑制率分别为４５．０５％，４３．９５％，２７．７９％，５５．７９％（Ｐ＜０．０１）；②Ａｎｔｉｋｅ和ＡＳＤ诱导ＭΦ释放ＴＮＦ分别为２５９．０±４０．８和２１４．８±４３．５Ｕ·μｌ－１（Ｐ＜０．０１），ＮＫＣ杀伤率为７３．３９％，６７．４７％（Ｐ＜０．０１），显著增强ＩＬ－２活性（Ｐ＜０．０１），提高ＣＡＴ，ＧＳＨ－Ｐｘ和移植瘤中ＳＯＤ含量（Ｐ＜０．０１），显著降低瘤细胞ｃｐｍ（Ｐ＜０．０１）；③ＳＴ诱导ＭΦ释放ＴＮＦ为１７７．１±４２．９Ｕ·μｌ－１（Ｐ＜０．０１），ＮＫＣ杀伤率６７．７４％（Ｐ＜０．０１），增强ＩＬ－２活性；但对荷瘤小鼠血中ＣＡＴ，ＧＳＨ－Ｐｘ，ＳＯＤ     

高血压病患者胰岛素抵抗与血浆纤溶酶原激活物抑制物-1的关系

目的：研究高血压病（ｅｓｅｎｔｉａｌｈｙｐｅｒｔｅｎｓｉｏｎ,ＥＨ）病人胰岛素抵抗（ｉｎｓｕｌｉｎｒｅｓｉｓｔａｎｃｅ,ＩＳＲ）与纤溶酶原激活物抑制物１（ＰＡＩ１）的关系。方法：ＥＨ病人５９例,正常对照４６例。测定血浆ＰＡＩ１、ｔＰＡ（组织型纤溶酶原激活物）、空腹血糖（ＧＬＵ）、胰岛素（ＩＮＳ）、低密度脂蛋白胆固醇（ＬＤＬＣ）、高密度脂蛋白胆固醇（ＨＤＬＣ）、甘油三酯（ＴＧ）、胰岛素敏感指数（ＩＳＩ）、血尿酸（ＵＡ）、体重指数（ＢＭＩ）、腹围／臀围比（ＷＨＲ）等指标。结果：ＥＨ病人ＩＳＩ（用空腹血糖与胰岛素乘积的倒数表示）较正常对照组下降（－５．４±０．５ｖｓ－３９±０．８,Ｐ＜０．０１）。血浆ＰＡＩ１较对照组升高［（２９±８）ｍｇ·Ｌ－１ｖｓ（２４±５）ｍｇ·Ｌ－１,Ｐ＜０．０１］。在高血压组中单相关分析表明ＰＡＩ１与ＷＨＲ（ｒ＝０．３６９,Ｐ＜０．０１）、ＧＬＵ（ｒ＝０．５６３,Ｐ＜０．００１）正相关,与ＩＳＩ（ｒ＝－０．３０１,Ｐ＜０．０５）,ＨＤＬＣ（ｒ＝－０．４１７,Ｐ＜０．０１）、ｔＰＡ（ｒ＝－０．４９９,Ｐ＜０．００１）负相关。以ＢＭＩ、ＷＨＲ、ＩＳＩ、ＨＤＬＣ、ＬＤＬ     

小剂量G—CSF对化疗引起的粒细胞减少症的治疗作用

应用小剂量（２μｇ／ｋｇ）粒细胞集落刺激因子（Ｇ－ＣＳＦ）于１８例肺癌患者化疗中，以观察预防发生中性粒细胞减少症的疗效。其中小细胞肺癌５例，非小细胞肺癌１３例，随机分成Ｇ－ＣＳＦ组及对照组各９例，化疗方案为ＣＥ（卡铂－ＶＰ１６）。结果Ｇ－ＣＳＦ组粒细胞绝对计数（ＡＮＣ）＜２．０×１０９／Ｌ，发生例数５例，持续天数为３．６±３．５天；对照组持续天数１６．８±７．１天，Ｐ＜０．０５。ＡＮＣ最低值至恢复正常（ＡＮＣ＞２．０×１０９／Ｌ）的天数Ｇ－ＣＳＦ组及对照组分别为２．６±１．３天，８．９±５．３天（Ｐ＜０．０５）。Ｇ－ＣＳＦ组化疗后的第２０天ＡＮＣ均已恢复正常，ＡＮＣ为（９．７±６．８）×１０９／Ｌ故可在第２２天顺利接受第二周期化疗。对照组ＡＮＣ（１．６６±０．８）×１０９／Ｌ（Ｐ＜０．０１）。由此可见，小剂量Ｇ－ＣＳＦ能有效地防治肺癌化疗引起的粒细胞减少症     

肾病综合征病人抗氧化功能的研究

为研究肾病综合征（ＮＳ）时抗氧化功能状况，我们测定３６例患者血超氧化物歧化酶（ＳＯＤ）、丙二醛（ＭＤＡ）及维生素Ｅ，以及尿ＳＯＤ、ＭＤＡ。结果表明：ＮＳ患者血总ＳＯＤ、Ｃｕ－Ｚｎ－ＳＯＤ及维生素Ｅ水平明显低于正常对照组（分别为７６．２２±２７．４８μＵ／Ｌ比１０４．２０±１８．８０μＵ／Ｌ，Ｐ＜０．００１；２０．４０±２２．６３μＵ／Ｌ比６２．９９±１５．６０μＵ／Ｌ，Ｐ＜０．００１；６．６８±３．５２ｍｇ／Ｌ比１６．３８±１．０５ｍｇ／Ｌ，Ｐ＜０．００１）；尿ＳＯＤ及ＭＤＡ明显高于对照组（分别为：１１４．９８±３１．７３μＵ／Ｌ比８２．３４±２６．５０μＵ／Ｌ，Ｐ＜０．００１；３．９９±１．９８μｍｏｌ／Ｌ比２．６４±０．７８μｍｏｌ／Ｌ，Ｐ＜０．００１）．研究提示，ＮＳ时抗氧化功能减退，肾脏易遭受氧自由基损害。     

LPO、MDA、SOD、GSH－PX测定对脑外伤高压氧治疗的疗效评估

对４０例脑外伤患者进行了高压氧治疗，并在治疗前后进行了血清过氧化脂质（ＬＰＯ）、丙二醛（ＭＤＡ）、超氧化物歧化酶（ＳＯＤ）和谷胱甘肽过氧化物酶（ＧＳＨ－ＰＸ）的测定。结果：治疗前ＬＰＯ、ＭＤＡ、ＳＯＤ、ＧＳＨ－ＰＸ分别为：８．０４±１．２５（μｍｏｌ／Ｌ）、７．３５±０．２０（ｎＭ／ｍｌ）、８８．３０±１５．２０（Ｎｕ／ｍｌ）、１７１．５６±２８．２０（ｕ），治疗后为５．３５±１．７５（ｕｍｏｌ／Ｌ），４．８５±１．２０（ｎＭ／ｍｌ），９７．４４±２１．０２（Ｎｕ／ｍｌ），１８８．８５±４５．５５（ｕ）。治疗前病人组ＬＰＯ、ＭＤＡ含量明显高于健康组，而ＳＯＤ、ＧＳＨ－ＰＸ活力则明显低于健康组。治疗后随着症状体征的消失，ＬＰＯ、ＭＤＡ明显降低，而ＳＯＤ、ＧＳＨ－ＰＸ逐渐升高，四项指标均向正常范围逆转。且ＳＯＤ、ＧＳＨ－ＰＸ已接近正常值（Ｐ＞０．０５）．故ＬＰＯ、ＭＤＡ、ＳＯＤ、ＧＳＨ－ＰＸ的测定可做为高压氧治疗脑外伤的有价值的疗效判断指标而用于临床。     

甲基黄酮醇胺抗血栓形成的机理研究

采用生物鉴定法测定甲基黄酮醇胺（ＭＦＡ）对ＰＧＩ２和ＴＸＡ２样物质生成的影响。以血小板聚集率％表示大鼠颈总动脉环ＰＧＩ２活性，ＭＦＡ（２４．８μｍｏｌ／ｋｇ，ｉｖ）组，阿斯匹林（ＡＳＡ，０．８３ｍｍｏｌ／ｋｇ，ｉｖ）组和溶媒对照组分别为０．４７±０．１９、０．１８±０．１６、０．５０±０．１３／ｍｇ，结果提示：ＭＦＡ不抑制ＴＸＡ２的生成（Ｐ＜０．０５）；ＡＳＡ明显抑制ＰＧＩ２的生成（Ｐ＜０．０１）。采用表面灌流法，ＡＡ为诱导剂，以兔主动脉条收缩强度（ｇ）表示ＴＸＡ２样物质的活性，ＭＦＡ（１０ｍｍｏｌ／Ｌ）组，咪唑（１．６７ｍｍｏｌ／Ｌ）组和溶媒对照组分别为０．３８±０．１３、０．１７±０．０９和０．６９±０．２２ｇ，结果提示ＭＦＡ和咪唑抑制ＴＸＡ２样物质的生成（Ｐ＜０．０１）。采用放射免疫法测定，ＭＦＡ６．２μｍｏｌ或１２．４μｍｏｌ／ｋｇ能明显抑制心肌梗塞家兔ＴＸＢ２的升高（Ｐ＜０．０１），而对６－ｋｅｔｏ－ＰＧＦ１α无明显影响     

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.