Objective To investigate the effect of splenectomy on peripheral lymphocyte apoptosis and CD4+ CD25+ Treg cells in rat with heart transplantation. Methods Abdominal heterotopic heart transplantation was performed from Wistar (donors) to SD (recipients) rats. Splenectomy was done at the same time in recipients (heart graft splenectomy group), non-splenectomy recipients (heart graft group), single splenectomy in SD rats (spleneetomy group), and SD rats (no operation) were designed as the control group. The transplanted hearts and peripheral blood in each group were collected on the 1st, 3rd, 5th and 7th day after operation. Histopathological and ultrastructural changes in transplanted hearts were observed by microscope and electronic microscope. Apoptosis rate of peripheral lymphocytes and CD4+ CD25+ Treg cells were measured by flow cytometry. The expression of Foxp3 mRNA in CD4+ CD25+ Treg cells was detected by RT-PCR, and survival time of the transplanted hearts was recorded. Results The survival time of the transplanted hearts in heart graft splenectomy group was 17.63±4.54 days, significantly longer than that in heart graft group (7.47±2.24 days) (P<0.05). The transplanted hearts in heart graft group were swelling, hard, dark, with interstitial edema, hemorrhage, diffuse infiltration of inflammatory cells, necrosis and cytolysis of a lot of myocardial cells, blurred cross striations; The transplanted hearts in heart graft splenectomy group were soft, red, partially gray white, with focal edema of subepicardial cells,infiltration of inflammatory cells, intact myocardial cell structure, and clear cross striations; Compared to heart graft group, the ultrastructural changes of transplanted hearts in heart graft splenectomy group were lighter significantly. On the 5th and 7th day after operation, apoptosis of peripheral lymphocytes in heart graft splenectomy group was (7.62±2.15)% and (9.41±3.82)% respectively, significantly higher than in heart graft group (both P<0.05). On the 3rd, 5 th and 7th day after operation, the number of CD4+ CD25+ Treg cells in heart graft splenectomy group was more (all P<0.01), and the expression level of Foxp3 mRNA higher than in heart graft group. Conclusion Splenectomy can increase apoptosis rate of peripheral blood lymphocytes and the number of regulatory T lymphocytes, and up-regulate the Foxp3 mRNA regulation in rats with heart transplantation, which has a negative correlation with pathological changes of transplanted hearts.

Current curriculum provision and teaching patterns of computer science in medical school has been far behind the requirements of clinical and research works, which restricted the develop-ment of medical talents to a large extent. According to the experiences of teaching practice,Department of Computer Science in Chongqing Medical University launched reform on medical computer science from aspects of teaching practice,curriculum provision,teaching methods and evaluation methods. Computer courses were opened according to students' computer knowledge and the profession. Task-based teaching and comprehensive evaluation methods were employed in order to improve the teaching quality.

ObjectiveTo evaluate the effect of lifestyle intervention on high-risk individuals for hypertension. MethodsOne hundred and four prehypertensive adults who received physical examination during October 2005 and October 2007 and showed at least 2 hypertension risk factors were randomly assigned to the experimental or control group.A muhicomponent behavioral intervention,including health education(e.g.awareness of disease),metary gmdance,physical.exercise,and psychologtcat improvement,Was conducted for 2 years.The awareness of disease,blood pressure,bedy weight,and the change of risk factors were compared.ResultsAt 2 years,the awareness of disease in the experimental group wag significantly improved,and the blood pressure,body weight,and risk factors were obviously reduced.Although the awareness of disease and the risk factors in the control group were improved,the blood pressure and body weight were increased.The difference in average systolic blood pressure,average diastolic blood pressure,body weight,and the awareness of disease between the two groups were 13 mm Hg(1 mm Hg=0.133 kPa),7.9 nlnl Hg,3.7 kg,and 37.6%,respectively(all P<0.05).ConclusionThe lifestyle intervention among high-risk individuals for hypertension could effectively reduce blood pressure and body weight. Improved lifestyle would result in less risk factors.

OBJECTIVE To observe the situation of Mycoplasma and Chlamydia trachomatis(Ct) infection in the patients with reproductive tract infection(RTI),and their antibiotic resistance analysis and therapeutic strategies.METHODS To analyze Ct antibody with monoclonal antibody immunogold filtration assay,and to detect Mycoplasma and their drug sensitivity with culture method.RESULTS From 581 specimens there were 42 cases who had Ct(7.2%),and 239 cases who had Mycoplasma(41.1%).The single infection of Ureaplasma urealyticum(Uu) was in 165 cases(28.4%) and of Mycoplasma hominis(Mh) in 18 cases(3.1%),respectively,Uu+Mh were in 39 cases(6.7%).Uu+Ct were in 17 cases(2.9%).The result of drug sensitivity showed that the drug resistance of Uu to erythromycin was 64.8%,to roxithromgcin was 62.6%.Mh was also with the similar tendency.The mixed infections rate was elevated.Doxycycline,minocycline,and josamycin had the higher bacteriostatic ability.CONCLUSIONS With the growing number of mycoplasma infections,and large-scale application of antibiotics themultidrug-resistance was occurred,so it is important to clinical reference to the selection of antibiotic susceptibility test results,and sufficient and adequate course of therapy to reduce the selection of resistant strains.Experimental evidence showed doxycycline,minocycline and josamycin can be used as the first choice for clinical medicine in mycoplasma infection.

Objective To observe the therapeutic effect of liver-soothing and spleen-strengthening herbal medicine for metabolic syndrome(MS).Methods Ninety-three MS patients were randomized into group A(N=51)and group B(N=42).The two groups received the basic treatment including dietary control and exercises.Group A received liver-soothing and spleen-strengthening herbal medicine(such as Radix Bupleuri,Rhizoma Atractylodis Macrocephalae,Radix Paeoniae Alba,Radix Angelicae Sinensis,Poria,Radix Rehmanniae,Radix Astragali,Rhizoma Alismatis,Semen Coicis,Cortex Moutan,Rhizoma Dioscoreae,Radix Glycyrrhizae,etc.)additionally.The treatment course lasted 3 months.After treatment,the therapeutic effect was evaluated,and the changes of blood pressure,body weight index(BWI),blood glucose(BG)and insulin levels,insulin sensitivity index(ISI),and the blood lipid levels were observed.Results After treatment,23 patients were cured,26 effective,2 ineffective,and the total effective rate was 96.08% in group A;in group B,12 were cured,21 effective,9 ineffective,and the total effective rate was 78.57%.The therapeutic effect in group A was better than that in group B(P0.05).Fasting BG,2-hour BG and BWI were decreased in the two groups(P0.05).Total cholesterol(TC)and triglyceride levels decreased,and high density lipoprotein cholesterol(HDLC)increased in the two groups(P0.05).Conclusion Liver-soothing and spleen-strengthening herbal medicine exerts an effect for metabolic syndrome,not only decreasing blood pressure,blood lipid levels and body weight,but also improving insulin resistance and increasing ISI.

Objective To study the expression of KAI1mRNA in cervical carcinoma and its clinical significance.Methods The transcription-polymerase chain reaction(RT-PCR) method was applied to detect the expression of KAI1mRNA in 53 fresh freezing cervical tissues.The findings were compared with the clinicopathological data.Results The expression of KAI1mRNA was (0.309?0.093) in normal cervix,(1.608?0.289) in cervical intraepithelial neoplasia(CIN),(0.948?0.910) in cervical carcinoma respectively.The relative densitometric value of KAI1mRNA decreased in late stage of cervical cancer in local cervical cancer with lymphatic metastasis(P

Objective To explore the diagnosis and treatment of endogenous adenoma of the duodenal papilla by endoscopy.Methods Between June 2005 and October 2008,eight patients who had dilated common and intrahepatic bile ducts with strictured opening of the papilla and lower segments shown by B-ultrasonography or MRCP,were enrolled in this study. The patients were assigned to receive ERCP and IDUS for diagnosis and treatment. Results In this series,three patients received pancreatico-duodenectomy because of tubulovillous adenoma (two cases) or tubular adenoma (one case) complicated with moderate atypical epithelial hyperplasia; one of the two cases with tubulovillous adenoma was confirmed as having local cancer by postoperative pathological examination,and then received interventional therapy and embolization because of liver metastasis in 3 months; the patient who had tubular adenoma was diagnosed with local signet ring cell cancer after the operation,and was followed up at 6 and 14 months afterwards by physical examination,which showed no abnormalities. Endoscopic snare papillectomy followed by bile duct stenting for drainage was performed on two patients,one of them was diagnosed with tubulo-papillary adenoma after the surgery and then showed recurrent tumor at 6 months,resulting death at 10 months; the other one was confirmed as having tubulovillous adenoma complicated with moderate atypical epithelial hyperplasia,this patient showed no abnormalities during follow-up at 6 and 12 months. Plastic bile duct stent was employed in one patient with severe atypical epithelial hyperplasia,but was replaced by metal stent because of repeated infection of the bile duct. One patient with papillary adenoma was lost to follow-up after bile duct stenting for intradrainage. One patient refused any treatment for the tubular adenoma; follow-up by phone showed no abnormality in this case in 12 months.Conclusions Endogenous adenoma of the duodenal papilla is rare detected. The tumor is very likely to turn to malignant. Multi-point biopsy is necessary for the patients with hyperplasia of the mucosal and muscle layers.

Objective To evaluate video-assisted thoracoscopic sympathectomy(VTS) for the treatment of palmar hyperhidrosis(PH),and to analyze curative efficacies for surgeries on different sympathetic segments.Methods Medline search was done on PubMed and data of randomized controlled trials(RCTs) about comparisons of surgeries on different segments over the past decade were collected.According to the inclusion criterion,relevant articles were screened.Then we extracted data,assessed trail quality,and performed Meta-analysis by using RevMan 5.2 with postoperative compensatory hyperhidrosis(CH) as the main evaluation index.Results A total of 11 RCTs involving 1 413 patients were included,among which all patients underwent bilateral VTS.Ef cacious rates were similar between multiple and single ganglia sympathectomy(97.7％ vs 98.8％,P ＜0.01).However,single-ganglia group showed a lower risk of CH compared to multiple-ganglia group.Meta-analysis suggested that,in the subgroups of the single-ganglia VTS,no significant difference was found between T2/T3 and other segments in the risk of CH [T2 segment vs other segments,RR =1.11,95 ％ CI(0.99,1.24) ; T3 segment vs other segments,RR =0.99,95％ CI(0.89,1.11)].The risk of CH was significantly lower in T4 sympathectomy than in other segments [RR =0.67,95％ CI(0.57,0.79)].By comparison of T2,T3 and T4 sympathectomy,we found that low segment had a lower risk of CH than high segment[RR =0.75,95％ CI(0.68,0.84)].Conclusion Single-ganglia and low segment sympathectomy can significantly reduce the incidence of CH,and T4 is supposed to be the best segment for the treatment of PH.

OBJECTIVE To investigate the clinic significance of screening high risk human papillona virus DNA(HR-HPV-DNA) in pregnant and postpartum women.METHODS HR-HPV-DNA screening was carried by HC-Ⅱ in 711 pregnant and postpartum women.RESULTS In 711 specimens,the infection rate of HR-HPV was 15.07%,15.92% in pregnant women,and 10.11% in postpartum ones;13.43% in the group

BACKGROUND:Usual mechanics experiment approach cannot be applied directly to human body and the inter-comparability of models is low.Therefore finite element numerical simulation to mechanical behavior of human body has become an effective method for better understanding of the human body.OBJECTIVE:To establish a three-dimensional finite element model of femoral osteoporosis.METHODS:According to the average Chinese femur parameters,1 male patient with severe osteoporosis,aged 86 years,with no hip joint diseases,was selected.The data of femoral osteoporosis was obtained by means of spiral CT scanning.The graphical data were processed by the Mimics 11.1 (a graph processing software),and the outline curve data of femoral bone cortex inside and outside surface were obtained.The curve data were imported into the Unigraphic NX4.0 for solid modeling.The femur three-dimensional model composed of the cortical bone,cancellous bone and medullary canal was obtained.The model data were imported into the Ansys 11.0 for operations such as assigning,meshing,and contact interactions to establish three-dimensional finite element model of osteoporotic femur.RESULTS AND CONCLUSION:Three-dimensional finite element model of femur of osteoporosis was successfully established,which provides a reliable method for the construction of finite element model of femoral osteoporosis,and creates conditions for investigating femoral osteoporosis fracture fixation method and joint replacement.