左旋甲状腺素钠对垂体-卵巢轴的影响

目的 研究左旋甲状腺素钠(Thyroxine,T4)对大鼠垂体-卵巢轴内分泌功能及形态的影响.方法 采用放射免疫分析法和电子显微镜技术,系统观察T4对大鼠血清性激素含量及靶腺组织形态的影响.结果 T4 0.1μg·g-1·d-1,腹腔注射,连续用药21d,可显著降低大鼠血清黄体生成素(LH)的水平(P＜0.01),而对大鼠卵泡刺激素(FSH)、雌二醇(E2)、孕酮(P)的含量无显著影响.T4 0.6μg·g-1·d-1可明显降低雌性大鼠LH,E2,P的水平(P＜0.01),对大鼠FSH的含量无显著性影响(P＞0.05).电镜观察显示,高剂量0.6μg·g-1·d-1,腹腔注射,21d组SD大鼠腺垂体促性腺细胞、卵巢内分泌细胞超微结构发生退行性改变.结论 T4大剂量长期应用对雌性大鼠垂体-卵巢内分泌功能有抑制作用,此抑制作用可能与靶腺内分泌细胞超微结构的退行性改变有关.     

二甲双胍对大鼠血清性激素含量的影响

目的　观察二甲双胍对大鼠血清性激素含量的影响。方法　用放射免疫分析法 (RIA)观察二甲双胍对大鼠血清性激素含量的影响。结果　二甲双胍 (135mg·kg-1·d-1,灌胃 ,14d)可明显降低雌性大鼠血清黄体生成素 (LH)及雄性大鼠睾酮 (T)的水平 ,对雌性大鼠卵泡刺激素 (FSH)、雌二醇 (E2 )、孕酮 (P)的含量和雄性大鼠血清LH、FSH的含量均无显著影响。二甲双胍 (2 70mg·kg-1·d-1,灌胃 ,14d)可降低雄性大鼠血清T的含量 ,而对LH ,FSH无显著影响 ;可明显降低雌性大鼠血清LH的含量 ,升高其P ,E2 的含量。结论　二甲双胍可降低雌性大鼠LH及雄性大鼠T水平 ,升高雌性大鼠E2 ,P的含量 ,对大鼠FSH分泌无显著影响     

赛庚啶对大鼠血清性激素含量的影响

目的　研究赛庚啶 (CYP)对大鼠血清性激素含量的影响。方法　用放射免疫分析法 (RIA)观察赛庚啶对大鼠垂体 性腺轴内分泌功能的影响。结果　赛庚啶 (2 .3mg·kg-1·d-1,灌胃 ,14d)可明显升高雌性大鼠血清LH的水平 (P <0 .0 5 ) ,降低其卵泡刺激素 (FSH)、孕酮 (P)的含量 (P <0 .0 1) ;对雄性大鼠血清黄体生成素(LH)、FSH、睾酮 (T)的含量均无显著影响。赛庚啶 (4.6mg·kg-1·d-1,灌胃 ,14d)可明显升高雄性大鼠血清LH ,T的含量 (P <0 .0 5 ) ,而对FSH无显著影响 ;同时可显著升高雌性大鼠血清LH的含量 (P <0 .0 5 ) ,降低其FSH ,P ,E2的含量 (P <0 .0 1)。结论　赛庚啶可促进雌雄大鼠LH及雄性大鼠T分泌 ,抑制雌性大鼠FSH ,E2 ,P的分泌 ,对雄性大鼠FSH分泌无显著影响 ,且存在性别差异。     

慢性焦虑刺激对成年雌性大鼠性激素水平的影响

目的 探讨慢性焦虑刺激对成年雌性大鼠性激素水平的影响.方法 将雌性成年大鼠随机分成空白组、模型组,采用不确定性空瓶刺激法建立焦虑应激大鼠模型.以高架十字迷宫实验评价其行为学;采用化学发光法检测大鼠性激素六项:促黄体生成素(LH),促卵泡激素(FSH),泌乳素(PRL),睾酮(T),孕酮(P),雌二醇(E2)水平;光镜观察大鼠子宫、卵巢的形态学变化.结果 与空白组相比,模型组大鼠血清T浓度显著升高(P＜0.01),LH浓度显著减少(P＜0.01),FSH、PRL、P、E2水平差异无统计学意义;模型组卵巢组织闭锁卵泡多,黄体和成熟卵泡少,子宫内膜较薄,间质纤维增生.结论 在焦虑状态下,成年雌性大鼠的血清T浓度升高,LH浓度降低,子宫、卵巢出现病理改变,提示焦虑是影响雌性大鼠生殖机能的重要因素.     

莪术、哈蟆油对去势后大鼠雌激素水平及受体表达的影响

目的 检测莪术、哈蟆油对去势后大鼠血清雌激素水平、脾脏雌激素受体表达,探讨其对生殖内分泌-免疫网络的影响及作用机制.方法 将成年SD雌性大鼠去势后制成更年期综合征模型,给药12周后,采用放射免疫法测定大鼠血清性激素(E2、FSH、LH、T、P)和白介素-2含量.取脾脏用免疫荧光法检测雌激素受体表达.结果 与模型对照组比较大剂量莪术、哈蟆油能升高去势大鼠血清E2、T、P水平(P<0.01),明显提高IL-2含量(P<0.01),有降低FSH、LH含量趋势(P0.05),并能显著升高脾脏ER表达水平(P<0.01).结论 莪术、哈蟆油可提高去势大鼠血清性激素水平,增强脾脏ER表达.为临床治疗更年期综合征提供实验依据.     

补肾毓麟汤对肾虚性生殖功能障碍大鼠生殖激素影响的实验研究

目的 观察补肾毓麟汤对模型大鼠血清生殖激素水平的影响.方法 用雷公藤多苷片造成雌、雄性生殖功能障碍大鼠模型,观察补肾毓麟汤和克罗米芬对雌、雄性大鼠血清卵泡刺激素(FSH)、黄体生成素(LH)、雌二醇(E2)、睾酮(T)的含量的影响.结果 雌性模型大鼠血清FSH、LH、E2含量与正常组比较无显著性差异,而血清T含量高于正常组(P＜0.05);补肾毓麟汤、克罗米芬均能降低血清T含量.雄性模型大鼠血清FSH含量与正常组比较无显著性差异,LH、E2含量高于正常(P＜0.05,P＜0.01),T含量低于正常组(P＜0.01);补肾毓麟汤能降低血清LH、E2含量,升高血清T含量;克罗米芬能降低血清LH含量,但对E2、T含量无明显影响.结论 雌、雄性模型大鼠血清生殖激素水平有不同程度改变,补肾毓麟汤能调整紊乱的生殖激素水平,疗效优于克罗米芬.     

疏肝健脾方药对多囊卵巢综合征大鼠性激素水平及胰岛素抵抗作用研究

目的:观察疏肝健脾方药对多囊卵巢综合征大鼠性激素水平及胰岛素抵抗作用。方法:随机将60只健康雌性SD大鼠分为正常组、模型组、中药低剂量组[22.05g/(kg·d)~(-1)]、中药中剂量组[44.1g/(kg·d)~(-1)]和中药高剂量组[88.2 g/(kg·d)~(-1)],采用脱氢表雄酮(DHEA)皮下注射进行PCOS模型复制。造模成功后,连续给药21 d后,分离血清,检测大鼠血清T、E2、LH、FSH、FBG,FINS水平并计算HOMA-IR水平,分离大鼠卵巢组织,RT-PCR法检测GSK3β、AKT2、GLUT4、IRS-1 m RNA水平。结果:与正常组比较,模型组大鼠血清T、LH、FSH、FBG、FINS及HOMA-IR水平显著升高(P0.01),E2、P水平显著下降(P0.01),卵巢组织中GSK3β、AKT2、GLUT4、IRS-1 m RNA水平显著降低(P0.01);经过治疗后,与模型组比较,低剂量组大鼠血清E2、P显著升高(P0.05,P0.01),LH、FBG、FINS水平降低(P0.05),HOMA-IR水平显著降低(P0.01),卵巢组织中GSK3β、IRS-1m RNA水平显著升高(P0.05);中剂量组和高剂量组大鼠血清T、LH、FSH、FBG、FINS及HOMA-IR水平均显著降低(P0.01,P0.05),E2、P水平显著升高(P0.01),卵巢组织中GSK3β、AKT2、GLUT4、IRS-1 m RNA水平均显著升高(P0.01)。结论:疏肝健脾方药能够有效改善PCOS大鼠血清激素水平及胰岛素抵抗情况,其机制可能与调控PCOS大鼠卵巢组织中GSK3β、AKT2、GLUT4、IRS-1 m RNA水平有关。     

谷氨酸钠诱导雌性大鼠肥胖后对其生殖-内分泌的影响

目的 探讨谷氨酸钠诱导雌性大鼠肥胖后对其生殖-内分泌的影响.方法 给新出生雌性Wistar大鼠皮下注射谷氨酸钠,连续5 d,以建立肥胖模型.通过持续阴道涂片确定肥胖不孕模型,动物存活至90日龄,自股动脉取血,测定血清雌二醇(E2)、睾酮(T)、瘦素(leptin)、卵泡刺激素(FSH)、黄体生成素(LH)的水平.结果 80%的注射谷氨酸钠大鼠呈能量失衡致肥胖不孕状态;血清E2、T、leptin水平较对照组明显升高(P＜0.05),FSH、LH水平较对照组明显降低(P＜0.05).结论 谷氨酸钠诱导大鼠肥胖后由于生殖内分泌改变而引起功能失调性无排卵,导致不孕.     

克癃胶囊对BPH肾虚血瘀证大鼠前列腺增生和性激素水平的影响

目的 探讨克癃胶囊对肾虚血瘀证大鼠前列腺增生(BPH)的影响及其对性激素水平的调节作用.方法 建立前列腺增生症肾虚血瘀证大鼠模型,观察空白组,模型组,保列治组,前癃通组,低、中、高剂量克癃组(以下简称克癃低组、克癃中组、克癃高组)大鼠前列腺和性激素水平的影响.结果 (1)保列治组、前癃通组、克癃高、中、低组大鼠前列腺湿质量、前列腺指数均显著低于模型组(P＜0.05).各组组织病理学变化有一定区别.(2)与模型组比较,前列治组、克癃低组血清T含量和E2含量无显著性差异(P＞0.05);前隆通组、克癃中组、克癃高组血清T含量降低(P＜0.05)、血清E2含量显著升高(P＜0.01);与前隆通组比较,克癃中组、克癃高组血清T和E2含量无显著性差异(P＞0.05).(3)与模型组比较,保列治组血清FSH和LH的含量无显著性差异(P＞0.05),前隆通组、克癃低、中、高组血清FSH和LH的含量降低(P＜0.05);与前隆通组比较,克癃低、中、高组血清FSH和LH的含量无显著性差异(P＞0.05).结论 克癃胶囊可显著抑制大鼠前列腺增生,且呈剂量依赖性关系.克癃胶囊可能通过同时降低T、E2、FSH和LH的水平,调节大鼠的性激素平衡,从而起到抑制前列腺增生的作用.     

甲状腺素对胰岛β细胞A20 mRNA表达作用的研究

目的 研究甲状腺素对胰岛β细胞A20 mRNA表达作用的影响,观察大鼠胰岛β细胞形态学变化.方法 采用氧化酶法及放射免疫法测定大鼠血清葡萄糖和血清胰岛素的含量.大鼠胰岛β细胞总DNA琼脂糖凝胶电泳,检测凋亡条带的形成.RT-PCR检测胰岛细胞抗凋亡蛋白A20(TNF-induced protein 3)mRNA的表达.结果 给予T4(600μg·kg-1·d-1)灌胃14d后,可使大鼠血清胰岛素水平明显降低(P＜0.05),血糖水平则明显升高(P＜0.01),并且大鼠胰岛β细胞总DNA琼脂糖凝胶电泳呈现典型凋亡梯状条带.而给予T4灌胃7d时,不发生上述改变.A20 mRNA在给予T4(600μg·kg-1·d-1)灌胃7d和14d组有表达,而且后者明显低于前者(P＜0.01),但在对照组和给予T4灌胃21d组无表达.结论 T4引起胰岛细胞的凋亡可能与抗凋亡蛋白A20在胰岛β细胞的非持续性表达有关.     

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.