3-(4′-苯甲酰基氨基-苯基)-香豆素衍生物的合成及体外降血糖活性

首先以对氨基苯乙酸和水杨醛类化合物为原料,通过Perkin缩合反应,再经盐酸酸化合成了3个3-芳基香豆素类化合物4a~4c;再与取代苯甲酰氯6a~6h通过酰胺化反应合成得到了10个3-(4′-苯甲酰基氨基-苯基)香豆素类化合物7a~7j。所有目标化合物的结构均经过¹H NMR,¹³C NMR,ESI-MS进行了确证。通过测定α-葡萄糖苷酶抑制活性和晚期糖基化终产物(AGEs)形成抑制活性评价了目标化合物的体外降血糖活性。结果表明化合物7f(IC₅₀=10.84±0.36 μmol/L)表现出较好的α-葡萄糖苷酶的抑制活性;化合物7g(IC₅₀=5.01±0.55 μmol/L)对AGEs形成抑制活性远高于阳性药氨基胍盐酸盐(AG,IC₅₀=290.31±7.32 μmol/L),这些结果为抗糖尿病药物的进一步研究提供了理论基础。     

4-苯基-吡咯并［2,3-d］嘧啶类JAK2激酶抑制剂的设计、合成和抗肿瘤活性

以JAK2激酶抑制剂鲁索替尼(ruxolitinib)为先导化合物,应用分子杂交的药物设计原理,通过结构修饰改造,设计、合成了一系列新的4-苯基-吡咯并［2,3-d］嘧啶类衍生物并进行初步的体外活性评价。以4,6-二羟基嘧啶为起始原料,依次通过Vilsmeier-Haack反应、S_NAr取代、成环、脱水、Suzuki偶联、酰基化等多步反应最终合成得到12个目标化合物(12a~12l),其结构经¹H NMR、¹³C NMR、HRMS确证。对目标化合物进行体外JAK2激酶活性、GM-CSF诱导的TF-1细胞活性测试,结果表明,部分化合物(12b、12e和12h)具有一定程度的JAK2抑制活性;采用MTT法测试目标化合物对JAK2非依赖性A549细胞的抗增殖能力,结果显示,该类化合物A549细胞表现出良好的增殖抑制活性,尤其是化合物12c(IC₅₀=0.12 μmol/L)活性最强,表明该类化合物具有潜在的研究开发价值。     

苯胺基嘧啶/偶氮鎓二醇盐杂合物的设计、合成及其抗非小细胞肺癌活性

为寻找活性强的抗非小细胞肺癌(NSCLC)药物,设计、合成了15个结构新颖的苯胺基嘧啶/偶氮鎓二醇盐杂合物9a~9e、10a~10e、11a~11e,采用MTT法考察其对表皮生长因子受体(EGFR)L858R/T790M突变的人肺腺癌细胞H1975的增殖抑制活性。结果表明,化合物9a~9e显著抑制H1975细胞的增殖,优于对照药吉非替尼(gefitinib)。其中,化合物9b活性最强(IC₅₀=0.65 μmol/L)。分子对接提示,化合物9b可能通过氢键和静电作用力等与EGFR T790M活性部分结合,值得进一步研究。     

Methyl Xestospongoate类似物的设计、合成和抗肿瘤活性

设计、合成了52个Methyl Xestospongoate类似物并初步研究了其抗肿瘤活性。以炔基甲酯和二炔为原料,经过Cadiot-Chodkiewitz偶联和Sonogashira偶联反应合成了52个Methyl Xestospongoate类似物4(a~m)-7(a~m),并利用¹H NMR、¹³C NMR和HREI-MS法确定其结构,采用CCK-8法测定了部分化合物的体外抗肿瘤活性。结果显示化合物6k对A549和P-388肿瘤细胞的增殖具有较强的抑制活性,其IC₅₀分别为9.36和9.62 μmol/L。     

异甜菊醇衍生物的合成及抗肿瘤活性

对异甜菊醇C-环、D-环进行结构修饰与改造,同时将其C₁₉-COOH成酯,设计并合成了 9个未见文献报道的新化合物(5~13),所有目标化合物的结构均经ESI-MS,IR,¹H NMR确定。采用MTT法测试了目标化合物对HCT116,Huh7,SW620及HepG2等细胞的抗肿瘤活性。初步研究结果表明,化合物13表现出对人结肠癌HCT116细胞具有选择性抑制作用(IC₅₀=3.57 μmol/L),与阳性对照舒尼替尼(sunitininb)(IC₅₀=5.62 μmol/L)活性相当,化合物10对HCT116,Huh7,SW620均有较强抑制作用。     

N-杂环取代苯并呋喃衍生物的合成及抗肿瘤活性

为了寻找具有抗肿瘤活性的新型分子,以苯并呋喃为基础,在分子中引入N-杂环片段进行优势结构重组。以水杨醛与2-溴-4′-氟苯乙酮为原料,经取代、缩合反应后,与N-杂环化合物反应,合成10个新型N-杂环取代的苯并呋喃衍生物(2a~2j),其结构经¹H NMR、¹³C NMR和HRMS确证。采用MTT法初步测试了目标化合物体外抗肿瘤(HeLa,A549和H1975)活性,结果表明化合物2a、2f和2j均表现出较好的抑制活性,值得进一步深入研究。     

培氟沙星C-3羧基等排体的合成及抗肿瘤活性(Ⅷ).均三唑硫醚酮缩氨基硫脲衍生物

以均三唑杂环作为培氟沙星C-3羧基的等排体,功能侧链-硫醚酮缩氨基硫脲为其修饰基,设计合成了12个C-3均三唑硫醚酮缩氨基硫脲目标化合物(6a~6l),其结构经元素分析和光谱数据确证,评价了它们体外对SMMC-7721、L1210和HL60 3种肿瘤细胞株的抗增殖活性。初步药理学实验结果表明:目标化合物的抗肿瘤活性显著高于母体化合物1和相应中间体硫醚酮(5a~5l),尤其是苯环含羟基和氟原子的目标化合物IC₅₀已达到微摩尔水平,与阳性对照药阿霉素的效力相当。这提示被功能基侧链修饰的唑杂环替代C-3羧基有利于提高其抗肿瘤活性。     

2-苯基-四氢噻喃并嘧啶类化合物的合成及黄嘌呤氧化酶抑制活性

以4-羟基苯甲腈为原料,经醚化、水解、酰化、加成等反应,共合成12个新型的2-苯基-四氢噻喃并嘧啶类化合物(6a~6d,8a~8h),并进行抑制黄嘌呤氧化酶活性测试。结果表明:化合物8a~8h(100 μmol/L)均表现出不同程度的抑酶活性,其活性明显强于化合物6a~6d,即嘧啶环上引入羧基有利于提高抑酶活性;在化合物8a~8h中,以嘧啶环上异丙酸取代,苯环羟基乙醚化的8f活性最强,IC₅₀为76.0 μmol/L。     

吉非替尼有关物质的合成

为控制吉非替尼的药品质量,建立吉非替尼原料药的质量标准,从吉非替尼的合成路线入手,分析并合成其中可能存在的4个有关物质:4-(3-氯-4-氟苯基)氨)-7-甲氧基喹唑啉-6-醇(A)、N-(3-氯-4-氟苯基)-6,7-二甲氧基喹唑啉-4-胺(B)、4-(3-氯-4-氟-苯基)氨基)-7-甲氧基喹唑啉-6-基)氧基)丙基)氨基)乙醇(C)和N-(3,4-二氯苯基)-7-甲氧基-6-(3-吗啉代)喹唑啉-4-胺(D),并经¹H NMR和MS确证结构。     

含芳杂环取代的马蹄金素衍生物的设计、合成及抗乙肝病毒活性

以马蹄金素(MTS)为先导化合物,设计、合成了11个新的含芳杂环取代的马蹄金素衍生物,其结构经NMR、ESI-MS确认。采用HepG2 2.2.15细胞为乙肝病毒载体,评价目标化合物的抗HBV活性。结果表明,化合物7a［IC₅₀=2.94 μmol/L,选择指数(SI)=146.39］和9a(IC₅₀=2.21 μmol/L,SI>250)对HBV DNA复制的抑制活性高于先导化合物MTS(IC₅₀=11.16 μmol/L,SI=10.78),且具有更高的SI,提示该化合物在治疗HBV感染时具有更高的安全性,具有潜在的研究开发价值。     

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.     

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.     

Electro-Acupuncture Combined with the Trigger Point Needle-Embedding for Treatment of Primary Trigeminal Neuralgia in 31 Cases

In recent years, the author of this essay has applied electro-acupuncture combined with the trigger point needle-embedding for treatment of primary trigeminal neuralgia in 31 cases, yielding satis- factory results as reported in the following.     

Investigation of Matrix Metalloproteinase -1, 2 and tissue inhibitor of matrix metalloproteinases-1 in Endometriosis

Objective： To explore the role of matrix metalloproteinase-1,2 （MMP-1, MMP-2） and tissue inhibitor of matrix metalloproteinases-1 （TIMP-1） in endometriosis. Methods： The eutopic and ectopic endometria from 40 subjects suffering from endometriosis and regular.endometria from 40 subjects （excluding endometriosis） were collected and examined by in situ hybridization technology and western blot assay. Results： Both expressions of MMP-1 and -2 were stronger in ectopic endometrium and eutopic endometrium than in normal endometrium. On the contrary, the expression of TIMP-1 in ectopic endometrium and eutopic endometrium was lower. The differences were significant （P 〈 0.01 ）. Moreover, there was no relationship among the expressions of MMP-1, 2 and TIMP-1 in ectopic endometrium. Conclusion： The expressions of MMP-1, 2 and TIMP-1 lose balance and lack of periodic changes in ectopic endometrium , which explains the biological invasive behavior of endometriosis. It was suggested-that regulating the balance between the MMPs and TIMP-1 should be an ideal therapeutic target to endometriosis.     

Shi Da-zhuo (史大卓) —An outstanding cardiologist of integrative medicine

Prof. SHI Da-zhuo, Ph.D., male, was born on March 20, 1960. Prof. SHI entered the Ph.D. program in 1990 at the China Academy of Chinese Medical Sciences under the supervision of Prof. CHEN Ke-ji, majoring in the treatment of cardiovascular diseases. After receiving his Ph.D. degree in 1993, Prof. SHI started working at the Cardiovascular Center in Xiyuan Hospital affiliated to China Academy of Chinese Medical sciences.     

Persist in and Carry Forward the Integrative Medical Research——Speech at the 6th National General Congress of Chinese Association of Integrative Medicine by Academician CHEN Zhu,Minister of Ministry of Health

The 6th National General Congress of Chinese Association of Integrative Medicine （CALM） was convened at 19-20, April 2008 in Beijing. Academician CHEN Zhu, the minister of Ministry of Health indicated at the congress that the integration of Chinese and Western medicine is very well in keeping with the situation of our country and the general rule of development in medical science; and as a good integration of Chinese medicine and Western medicine, it is mutually beneficial and advantageous to both of them. Seeing the creativity shown in integrative medical investigation in theoretic and methodological sides, we should and must persist in and develop it.