黄牛木中的异戊烯基口山酮类化合物

目的 研究黄牛木茎60%乙醇提取物的化学成分。方法 运用多种色谱学方法对黄牛木茎60%乙醇提取物的化学成分进行分离,并根据光谱数据鉴定化合物的结构。结果 从该植物中分离得到5个口山酮类化合物,分别鉴定为1,7-二羟基-2-(3-甲基丁-2-烯基)-5″-羟基-6″-甲基-6″-(4-甲基戊-3-烯基)-4″,5″-二氢吡喃(2″,3″：3,4)双苯吡酮(Ⅰ)、5,9-二羟基-8-甲氧基-2,2-二甲基-7-(3-甲基丁-2-烯基)-2H,6H-吡喃-［3,2-b］-双苯吡-6-酮(Ⅱ)、黄牛木口山酮A(Ⅲ)、4-(3′,7′-二甲基辛-2′,6′-二烯基)-1,3,5-三羟基-9H-双苯吡-9-酮(Ⅳ)和黄牛木酮A(Ⅴ)。结论 化合物Ⅰ为新化合物,命名为越南黄牛木口山酮E(cracochinchinone E)。化合物Ⅱ和Ⅳ为首次从黄牛木属植物中分离得到。     

青叶胆Shan酮类化合物的成分研究

目的　分离鉴定青叶胆 Swertia mileensis全草的酮类成分。方法　 95 %乙醇浸提 ,经硅胶柱色谱分离纯化 ,UV,IR,MS,1 H和 1 3CNMR波谱方法确定化学结构。结果　分得 12个酮成分 ,分别为 1-羟基 - 2 ,3,4 ,5 -四甲氧基酮 (1- hydroxy- 2 ,3,4 ,5 - tetramethoxyxanthone, ) ;1-羟基 - 2 ,3,7-三甲氧基酮 (1- hydroxy- 2 ,3,7-trim ethoxyxanthone, ) ;1-羟基 - 2 ,3,5 ,7-四甲氧基酮 (1- hydroxy- 2 ,3,5 ,7- tetram ethoxyxanthone, ) ;1,5 -二羟基 - 2 ,3-二甲氧基酮 (1,5 - dihydroxy- 2 ,3- dimethoxyxanthone, ) ;1,5 -二羟基 - 2 ,3,7-三甲氧基酮 (1,5 - dihy-droxy- 2 ,3,7- trimethoxyxanthone, ) ;1-羟基 - 2 ,3,5 -三甲氧基酮 (1- hydroxy- 2 ,3,5 - trimethoxyxanthone, ) ;1,5 -二羟基 - 2 ,3,4 ,7-四甲氧基酮 (1,5 - dihydroxy- 2 ,3,4 ,7- tetramethoxyxanthone, ) ;1,8-二羟基 - 2 ,3,6 -三甲氧基酮 (1,8- dihydroxy- 2 ,3,6 - trimethoxyxanthone, ) ;1-羟基 - 2 ,3,4 ,7-四甲氧基酮 (1- hydroxy- 2 ,3,4 ,7- te-tramethoxyxanthone, ) ;1,2 ,3,5 -四甲氧基酮 (1,2 ,3,5 - tetromethoxyxanthone, ) ;1-羟基 - 2 ,3,4 ,6 -四甲氧基酮 (1- hydroxyl- 2 ,3,4 ,6     

具有抗敏作用的新的5,7-二羟基色酮衍生物

由植物制得一类抗过敏剂含有(Ⅰ)和(Ⅱ)的衍生物。在(Ⅰ)式中:R_1=H,羟苯基或二羟基苯基;R_2=3-甲基-2-丁烯基,甲氧苯基,甲氧基羟基苯基或鼠李吡喃硅烷氧基;R_3=H,或3-甲基-2-丁烯基;R_4-H,3-甲基-2-丁烯基。(Ⅱ)式中Y=H或3-甲基-2-丁烯基。化合物(Ⅲ),R_5=3甲基-2-丁烯基或3-羟基-3-甲基丁基;化合物Ⅳ,R_6=如(V)式基团和R_7=H或3-甲基-2-丁烯基。     

生姜化学成分的研究

目的研究生姜Zingiber officinale的化学成分。方法采用乙醇提取、硅胶柱色谱、凝胶柱色谱进行分离和纯化,单体化合物用波谱分析进行结构鉴定。结果从醋酸乙酯部位分离得到12个化合物,鉴定为三十一烷醇(Ⅰ)、正二十四烷酸(Ⅱ)、β-谷甾醇(Ⅲ)、1-羟基-7-甲氧基酮(Ⅳ)、优酮(Ⅴ)、1,6-二羟基酮(Ⅵ)、8-姜酚(Ⅶ)、6-姜酚(Ⅷ)、6-姜烯酚(Ⅸ)、1-去氢姜辣二酮(Ⅹ)、3,5-二酮-1,7-二-(3-甲氧基-4-羟基)苯基庚烷(Ⅺ)、(3S,5S)-3,5-二羟基-1-(4-羟基-3-甲氧基苯基)癸烷(Ⅻ)。结论化合物Ⅰ～Ⅵ为首次从该植物中分离得到,化合物Ⅳ～Ⅵ为首次分离得到的酮类化合物。     

多甲基α-吡喃酮的简捷合成方法

以α-甲基丙酰乙酸乙酯为原料，经动力学去质子化后，与乙酸乙酯发生γ-酰基化反应，然后环合生成3，5，6-三甲基-4-羟基-2-吡喃酮，在回流丁酮中甲基化主要得到3，5，6-三甲基-4-甲氧基-2-吡喃酮。两步反应总收率15．2％，经IR，^1H—NMR，MS分析确定了目标化合物的分子结构。     

黄酮类化合物研究——ⅩⅢ.5-异戊烯基查尔酮类化合物的合成研究

本文报道了3,4-二羟基苯甲醛异戊烯基化时的异常现象及甲基(及苄基)保护的多羟基-5-异戊烯基查尔酮衍生物的合成。     

异叶花椒的化学成分研究

目的研究异叶花椒Z anthoxy lum d im orphophy llum的化学成分,并对从异叶花椒中分离得到的一个新的香豆素成分进行结构鉴定。方法将乙醇提取物酸水处理,氯仿萃取部分采用硅胶、F lash柱色谱及重结晶等方法进行分离,利用光谱方法对分离得到的单体成分进行结构鉴定。结果分离并鉴定出7个化合物,其中5个香豆素,分别为6-(3′-甲基-2,′3′-二羟基)丁基-7-甲氧基-8-(3″-甲基-2″-丁烯基)-香豆素(Ⅰ)、8-(3′-甲基-2,′3′-丁烯基)-2-′[(1″-羟基-1″-甲基)-乙基]-6,7-二氢呋喃香豆素(Ⅱ)、6,7,8-三甲基香豆素(Ⅲ)、滨蒿内酯(Ⅳ)、伞形花内酯(Ⅴ),1个生物碱铁屎米-6-酮(can th in-6-one,Ⅵ)和1个木脂素syringares ino l(Ⅶ)。结论化合物Ⅰ和Ⅱ为首次从该属植物中分得,其中Ⅰ为新化合物,命名为异叶花椒内酯。化合物Ⅵ表现出显著的抑制口腔致病菌的活性。     

东风桔化学成分研究

目的 研究东风桔Atalantia buxifolia 的化学成分。方法 运用硅胶、凝胶等多种色谱技术对东风桔的化学成分进行研究,根据理化性质和波谱数据鉴定化合物结构。结果 从东风桔95%乙醇提取物的氯仿和正丁醇萃取部位分离得到了15个化合物,分别鉴定为1, 6-二羟基-3, 4, 5-三甲氧基-10-甲基吖啶-9(10H)-酮（1）、9(10H)-吖啶酮（2）、1-羟基-3, 4, 5-三甲氧基-10-甲基吖啶-9(10H)-酮（3）、吴茱萸次碱（4）、吴茱萸碱（5）、柠檬苦素（6）、异土木香内酯（7）、5-羟基-2, 2-二甲基-12-异戊烯基-2H-吡喃 [3, 2-b] 吖啶-6(11H)-酮（8）、1, 3, 6-三羟基-4, 5-二甲氧基-10-甲基吖啶-9(10H)-酮（9）、甜橙碱（10）、1, 5-二羟基-2, 4-二异戊烯基-3-甲氧基-10-吖啶-9(10H)-酮（11）、1, 5-二羟基-2, 4-二异戊烯基-3-甲氧基-10-甲基吖啶-9(10H)-酮（12）、伞形花内酯（13）、胡萝卜苷（14）、β-谷甾醇（15）。结论 化合物1～7为首次从该植物中分离得到。     

观赏獐牙菜中新（sa）酮化合物研究

目的研究民族药观赏獐牙菜Swertiadecora的化学成分,寻找活性物质。方法用系统溶剂提取,常规硅胶柱色谱和薄层色谱进行分离纯化,根据化合物的物理、化学性质,UV、MS、NMR、HMPC、HMQC等波谱手段及HPLC对照等鉴定其结构。结果从观赏獐牙菜的低极性部分分离得到3个化合物,分别鉴定为1-羟基-4,5,6,7-四甲氧基酮即观赏獐牙菜酮-(1-hydroxy-4,5,6,7-tetramethoxy-9H-xanthen-9-one,)、5,7,3′,4′-四羟基黄酮即木犀草素(luteolin,)和3,5,7,3′,4′-五羟基黄酮即槲皮素(quercetin,)。结论化合物为一新化合物,命名为观赏獐牙菜酮-(swertiadecoraxanthone-),另2个化合物均为首次从该植物中分离得到。化合物的五氧取代类型也为首次在獐牙菜属植物中发现。     

黄花獐牙菜的化学成分研究

目的 研究黄花獐牙菜 Swertia kingii的化学成分。方法 用各种色谱柱方法进行分离纯化,根据理化性质和波谱解析鉴定其化学结构。结果 从黄花獐牙菜中分离到15个化合物,鉴定了其中的11个化合物,分别为β-谷甾醇(β-sitosterol,1)、1,8-二羟基-3,7-二甲氧基口山酮(甲基獐牙菜宁,methylswertianin,2)、1,7-二羟基-3 ,8二甲氧基口山酮(gentiacaulein,3)、1,8-二羟基-3,5-二甲氧基口山酮(印度獐牙菜素,swerchirin,4)、8-O-β-D-glucopyranosyl-1, 3, 7-trihydroxanthone,5)、芒果苷(mangiferin,7)、1-O-[β-D-吡喃木糖(1→6)-β-D-吡喃葡萄糖］-7-羟基-3,8-二甲氧基口山酮(1-O-［β-D-xylopyranosyl-(1→6)-β-D-glucopyranosyl］-7-hydroxy-3, 8-dimethoxyxanthone,8)、8-O-［β-D-吡喃木糖(1→6)-D-吡喃葡萄糖］-1,7-二羟基-3-甲氧基口山酮(8-O-［β-D-xylopyranosyl(1→6)-lucopyranosyl］1, 7-dihydroxy-3-methoxy-xanthone,9)、1-O-β-D-吡喃葡萄糖-7-羟基-3,8-二甲氧基口山酮(1-O-β-D-glucopyranosyl-7-hydroxy-3,8-dimethoxyxanthone,10)、异荭草苷(isoorientin,11)、8-O-β-D-吡喃葡萄糖-1,3,5-三羟基口山酮(8-O-β-D-glucopyranosyl-1, 3, 5-trihydroxanthone,13)。其余4个还在结构鉴定中。结论 所有化合物1～11均为首次从该植物中得到。     

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.