Objective To detect the expression of pituitary tumor transforming gene (PTTG) in estrogen-induced rat prolactinoma and various types of human pituitary adenomas to explore the role of PTTG in pituitary tumor oncogenesis. Methods Rat model of estrogen-induced prolactinoma was set up, and PTTG mRNA level in rat prolactinoma was measured by RT-PCR. The expression levels of PTTG and bFGF mRNA in 32 cases of human pituitary adenomas were measured by RT-PCR as well. Results The expression level of PTTG mRNA in rat prolactinoma was obviously higher than that in control pituitary tissue(P

目的探讨推拿加腰背肌训练治疗非特异性下腰痛的作用机理。方法200例非特异性下腰痛(NLBP)患者分为4组:空白组、训练组、推拿组、推拿加训练组,各50例。在治疗开始和治疗4周后,对4组患者进行肌酸激酶(CK)、乳酸脱氢酶(LDH)、超氧化物歧化酶(SOD)活性、丙二醛(MDA)含量的测定及目测类比定级法(VAS)评定。结果4组患者的CK、LDH、SOD和MDA含量以及VAS指数均有不同程度的改善。组间比较,推拿加训练组的CK、LDH、SOD和MDA含量以及VAS指数均明显优于其他3组(均P<0.01)。结论中医推拿技术结合主动功能训练治疗NLBP具有明显的康复疗效。

Objective To observe effects of acupoint sticking of Migudan on BGP and Hyp in the patients of primary osteoporosis. Methods By computer random number generating method, the patients were randomly divided into a treatment group treated with acupoint sticking of Migudan, and a control group treated with Gaitianli, 48 cases in each group. Changes of their BGP and Hyp after treatment were investigated. Results Acupoint sticking of Migudan could increase significantly BGP of serum in the patients of primary osteoporosis as compared with the control group (P

Cytokines is a kind of important factor on Pathogenic of hysteromyoma.Some study provides evidence that sex homone and its product of metabolism react up regulation/down regulation for hysteromyoma by growth factor. Apoptosis and oncogene and retinoid X have influence to the growth of hysteromyoma.

Objective To evaluate the labor duration of healthy primiparas in the past 20 years compared with Friedman labor curve.Methods Published observational studies about labor duration in primiparas with singleton vertex presentation were searched in PubMed,EMBase,Cochrane library,CNKI,VIP and Wanfang database.The Cochrane Collaborafion' s RevMan 5.1 software was used for reta-analysis.Results Eleven literatures involving 4534 primiparas were included,which were eligible for the criteria to investigate the labor duration.Meta-analysis showed that the length of active phase was significantly different between what was showed in primiparas in the past 20 years and Friedman labor curve[ P =0.01,weighted mean difference ( WMD ) =1.61,95％ CI:0.38 to 2.83 ],and significant differences were also found in the second stage duration (P =0.0006,WMD =-0.20,95％ CI:-0.31 to -0.09 ).Conclusions Compared with Friedman labor curve,active phase length of healthy primiparas in the past 20 years was significantly longer and second stage length was shorter.Reassessing labor curve of healthy primiparas is required for more scientific guidance and less unnecessary interventions.

Objective To study the effect of fluoride varnish on microconsistency of enamel after under irradiation in vitro. Methods Normal enamel samples were randomly divided into four groups: control group,irradiation group,fluoride varnish group and fluoride varnish-irradiation group.The microconsistency of enamel surface before and after treatment,after anti-caries test was measured by type MH-5 durometer. Results Fluoride varnish had an inhibitory effect on the decrease of enamel microconsistency etched with lactate buffer.The microconsistency in irradiation group was obviously lower than that in control group(P

This article was aimed to observe the intracardiac pressure under different states by electric acupuncture (EA) on yuan-source point of PC7-Daling and to explore the acupuncture effect features. Catheterization was applied through the right common carotid artery to the left ventricle in order to record the left intraventricular pressure. The intracardiac pressure was used as an indicator. The effects of EA on PC7-Daling to the left intraventricular pressure of rats were observed under the states of normal physiology, isoproterenol and propranolol, respectively. The results showed that for the immediate effects of acupuncture, EA on PC7-Daling can obviously excited the intracardiac pressure of normal rats. Under the state of intravenous application of propranolol and isoproterenol, no obvious reac-tions during EA on PC7-Daling. From the effects of acupuncture, under normal conditions, EA on PC7-Daling had excitatory effect; under propranolol state, it had inhibitory effects; and the effect of isoproterenol state was variable. It was concluded that according to the specificity of acupoint effect, PC7-Daling can excite intracardiac pressure.

Objective To evaluate the correlation between cerebral blood flow(CBF)with age and gender with arterial spin labe-ling in magnetic resonance imaging.Methods All thirty-seven healthy volunteers were divided into A(20-29 years,n=10),B(30-39 years,n=9),C(40-49 years,n=9)and D(50-59 years,n=9),underwent conventional MRI and ASL(Q2TIPS)examination. Cerebral blood flow (CBF)maps were obtained and reviewed.ROIs were respectively selected in bilateral cerebral hemispheres and CBF values were generated.The comparison of CBF value between the left and right hemispheres and within the four age group differences were performed.The relationships between CBF values with age and gender were also analyzed.Results There was no statistical difference of CBF in white or gray matter between bilateral hemispheres in all groups (P > 0.05).A significant positive correlation was found between age and CBF values of the left whole brain (r=0.378,P =0.020)in group C,while no significant difference of CBF in bilateral gray matter,white matter or whole brain was detected among all age groups (P > 0.05).There was no statistical difference of CBF between male and female volunteers (P > 0.05).Conclusion Quantitative estimates of CBF can be obtained with ASL sequence.The preliminary results suggest that CBF values do not significantly associated with age or gender.

Objective To assess the effectiveness of prenatal screening with maternal serum markers and the sonographic characteristics of the foetus for detecting trisomy 18. Methods Amniotic fluid or the fetal blood samples were obtained and cultured in women with positive results in serum screening (n=36) and with abnormal findings in sonography (n=92) at 18~32 weeks of gestation, and then fetal karyotyping was performed. Results Nine cases of trisomy 18 and 2 cases of other abnormal karyotype were found among the 128 pregnant women (8.59%, 11/128). Four cases were diagnosed as trisomy 18 among the 36 women with positive screening results. The rate of abnormal karyotype among those women with abnormal sonographic findings was 7.61%(7/92,5 cases of trisomy 18 and 2 cases of other abnormal karyotype). Two cases of trisomy 18 had both positive result in screening and abnormality in sonography. Conclusions Prenatal screening for maternal serum markers combined with sonographic examinations for the fetus is effective in detecting foetus with trisomy 18.