The mental health state of the 256 fourth-year medical students of Kunming Medical College was preliminarily analyzed by requiring. The students fill in the inquiry sheets (questionare) in a question-and-answer way. The ages of these 136 male and 120 female students ranged from 19 to 23 years old, and the self-desiged 109 items of the investigation were induced into 8 aspects related to the mental health such as the outlook on life etc. The result showed that these are differences between the mental health state of the senior medical students and the traditional ideas, morality, manners of education etc. Some initial points of view were put toward.

Glucosylceramide synthase(GCS) plays an important role in ceramide metabolism and can block apoptosis signal pathway which is mediated by ceramide. Recently, studies have demonstrated that overex-pression of GCS exists in various muhidrug resistant cancer cell lines and is related to drug resistant pheno-type. A possible connection between GCS and P-gp is also suggested. Moreover,the level of GCS can be down-regulated to increase tumor cells sensitivity by chemical inhibitor and RNA interference. Thus, inhibition of ac-tivity and expression of GCS is a new mechanism of reversing muhidrug resistance.

Protracted bacterial bronchitis (PBB) is a common cause of children chronic cough,especially in those aged 1 ～ 6 years.It is defined by the presence of persistent wet cough for longer than 4 weeks,but lacks of symptoms or signs of other alternative diagnosis of chronic cough.It shows a normal or near-normal chest radiograph,a intense neutrophilia in bronchoalveolar lavage fluid(BALF),and a chronic purulent bronchitis under bronchochoscopy,and usually resolves after two-week course of appropriate oral antibiotic (usually amoxicillin-clavulanatc).So far,PBB hasn't been fully recognized by most pediatricians,and often been unrecognised or misdiagnosed as asthma.In this paper,pathogenesis,diagnosis and treatment are reviewed.

Objective To explore the protective effect of Ligustrazine on pulmonary fibrosis caused by hyperoxia in neonatal rats.Met-hods Eighty Sprague-Dawley(SD)clean neonatal rats,which were less than 12 hours old,were enrolled in this study.The neonatal rats were randomly divided into 4 groups:air-exposed control group(group A);air-exposed plus Ligustrazine-treated group(group B);hype-roxia-exposed control group(group C);hyperoxia-exposed plus Ligustrazine-treated group(group D).The neonatal rats of group B and group D were intraperitoneally injected with Ligustrazine[30 mg/(kg?d)] in solution of normal saline(NS),group A and group C were intraperitoneally given the same dose of NS.On 14th day,10 rats of each group were randomly chosen and then killed,the pulmonary pathological changes were observed by HE staining under light microscope.The area percentages of collagen fibers were measured by Masson staining and imaging analysis.The degree of pulmonary fibrosis was evaluated by the area percentages of collagen fibers and hydroxyproline content.The results were analyzed by SPSS 13.0 software.Results On the 14th day of the exposure,the histopathologic examination demonstrated broadened lung interstitium and reduced alveolar quantity and lung fibrosis were developed in group C;Ligustrazine treatment obviously alle-viated the changes of lung histomorphology.The newborn rats in group C had lower body weight compared that of with group A,B(Pa0.05).Conclusion Early use of Ligustrazine can decrease the severity of the pulmonary fibrosis of neonatal rats exposed to hyperoxia.

In order to accelerate the comprehensive reform of clinical education,the Ministry of Education and the Ministry of Health decided to implement the program of excellent doctor education training plan in 2012.On the basis of the plan,taking a certain medical college as an example,on the problems such as lack of teachers,unreasonable age structure,the lack of advanced experimental technology and comprehensive talents and the lack of innovation and enterprising spirit and so on,the author puts forward some proposals from the development of experimental teaching,the teachers' personal and professional growth and the institutional and policy level,such as strengthening the foreign exchange,making learning training plan and personal development planning,establishing the evaluation system of the experiment teaching quality and opening up a variety of learning methods to improve the teachers' comprehensive ability.

Purpose: To observe the curative effect of acupuncture on female climacteric syndrome.Methods: Guanyuan (CV 4), Zhongji (CV 3), Zigong (Ex-CA 1), and Sanyinjiao (SP 6) were selected as main acupoints to treat 30 cases of female climacteric syndrome according to TCM principle of aiming mainly at the kidney in the treatment of this disease. Results: The total effective rate from acupuncture treatment of this disease was 90%. It was found in the patients that serum endocrine hormones changed significantly after acupuncture as compared with before it (P＜0.05). Conclusion: It is preliminarily considered that acupuncture has a comprehensive regulating effect on neuroendocrine system and can restore the dysfunctional vegetative nervous and endocrine systems to a stable state,removing or reliving various clinical symptoms in women's climacteric.

Nephroblastoma is one of the most common solid tumours in children,and the gene expression is closely related to the tumorigenesis,development and prognosis.The treatment regimens have been constantly updated,which includes the preoperative chemotherapy,nephron-sparing surgery and targeted therapy of cancer stem cells,aiming to maintain the excellent survival for children being treated for Wilms tumor,while minimizing therapy-related toxicity.This paper reviews the gene expression and treatment on wilms' tumor.

AsoneoftheCdc25phosphatasefamilymembers,Cdc25Cplaysanimportantroleinregu-lating mitosis of eukaryotic cells.In eukaryotic cells,CDK1-cell cycle protein B (CyclinB)compound mainly control the process of G2-M.The activity of Cdc25 C is the key in cell cycle into M phase.It activates CDK1-cyclinB complexes to promote cells from G2 to M phase .Improving Cdc25 C activity can promote the G2-M phase transition,and remove the G2-M phase retardation induced by ionizing radiation,preventing the damaged DNA from repaired into the phase of cell division,resulting in cell death caused by excessive cell proliferation, thus enhance radiosensitivity.

Objective To investigate the clinical effect and safety of compound glycyrrhizin combined with bozhi glycopeptide in treatment of erythema nodosum.Methods Sixty-four patients with erythema nodosum were divided into treatment group (36 cases) and control group (28 cases) by random digits table method.The patients in treatment group were given compound glycyrrhizin 120 mg,intravenous drip,once a day;and bozhi glycopeptide 4 ml,intravenous drip,once a day.The patients in control group were given compound glycyrrhizin 120 mg,intravenous drip,once a day.The clinical efficacy and recurrence were compared between 2 groups.Results The total effective rate in treatment group was significantly higher than that in control group [86.1％ (31/36) vs.57.1％ (16/28)],there was statistical difference (P ＜ 0.05).Follow-up for 3 months,the rate of recurrence in treatment group was significantly lower than that in control group [16.1％(5/31) vs.8/16],there was statistical difference (P＜ 0.05).Conclusion Compound glycyrrhizin combined with bozhi glycopeptide can effectively control the erythema nodosum,and has no significant adverse reactions,reduces the rate of recurrence,and it is worthy of promotion and application.

Objective To study the imaging features of cervical lymphnode enlargement so as to improve the diagnosis of cervical lymph node disease.Methods CT and MRI appearances of 66 patients with pathologically-proved cervical lymph nodes disease were comparatively analyzed.Results There were significant difference in distribution of the multiple metastatic lymph node and lymph node tuberculosis(P=0.006).The ring-shaped enhancement were found in 20 cases with metastatic lymph nodes,19 of which were shown as thin-wall enhancement,its rate was 95%, and 5 ring-shaped enhancement of lymph node tuberculosis were shown as thick-wall enhancement.The former of which was significant difference than that of the latter(P=0.000).Of all central necrosis,it was significant difference between the metastatic lymph nodes(78%) and lymphoma(36%)(P=0.018).Conclusion According to the imaging features of cervical lymph nodes enlargement,their location and distribution,all of them may be diagnosed correctly.