Maintaining social equity and helping vulnerable groups is an important function of government,and helping poor college students is an important aspect of maintaining education equity.On the basis of investigation and research,we analyze the major problems and weak-points in the police of poor college student aid and propose some suggestions on completing the aid-policy and aid-systems for poor college students.

Objective To observe the therapeutic effect of combination of penetrating keratoplasty,cataract extraction and intraocular lenses implantation. Methods Penetrating keratoplasty was performed simultaneously with cataract extraction and intraocular lenses implntation on 12cases,to with open-window、plantate-bed edge or sclerotic tunnel. Results Twelve cases were recorded after following up for 8~12months.10 cases(83.3%) of the corneas remained clear.11 cases(91.7%) chieved a better visual acuity postoperatively.Conclusions The combination of penetrating keratoplasty,cataract extractionand intraocular lenses implantation offers advantages of rapid and better rehabilitation of visual acuity with low complication rate.

Psychological problems interrupt the study and life of overseas students, and even lead to a crisis. Based on a study on the results of questionnaires for undergraduate overseas students' on-campus lives in Chongqing Medical Universities,solitude,frustration and depression,the three most popular psychological problems of overseas students in medical universities are analyzed and countermeasures are put forward.

Objective To explore the clinical value of CT in diagnosis of pulmonary Wegener's granulomatosis.Methods The clinical data of 11 cases with Wegener's granulomatosis of the lungs were selected.All patients underwent CT scan or enhanced MRI scans and misdiagnosis of CT images were analyzed.Results This group of patients with bilateral lung injury in 9 cases,unilateral lung injury in 2 cases.Main imaging features include:multiple nodules in 8 cases,irregular flakes consolidation shadow in 4 cases,wedge-shaped lesion in 3 cases,empty in 6 cases.Among 11 patients,8 patients were misdiagnosed,misdiagnosis rate was 72.72％ (8/11),of which 2 cases were misdiagnosed as primary lung cancer,3 cases were misdiagnosed as metastatic lung cancer,3 cases were misdiagnosed as tuberculosis.Conclusion The CT manifestations had a very important role in guiding the diagnosis of pulmonary Wegener's granulomatosis.

Foreign students’management is the issue for Chinese universities to explore constantly.How to provide the channel for foreign students to know China,to know Chinese universities,to answer their questions are the responsibilities of Foreign Students Management Office of universities.This paper analyses the result of Chinese-Foreign Students Joint Management Model which has been running for one year in Chongqing Medical University to provide some highlights on foreign students’ management in universities of China.

Objective To investigate the effect of induced aborion on stage of labor and placental abnormality of primiparous women during parturition. Methods Birth process and abnormal placenta during labor for 74 women with a history of induced abortion (observation group) and 102 women without a history of induced abortion ( control group) in their first parities were collected and compared. Results The third stage of labor of the observation group was (10.75 ±2.64) min,longer than (8.12 ±3.26)min of the control group,the difference had statistical significance(P ＜0.05). The rate of placenta adhesion,placental remnants and low lying placenta of the observation group were 13.52%, 10.81% and 8.11% respectively, significantly higher than 2.95 %, 1.96% and 0.98% in the control group(P ＜0. 05). Conclusion It was demonstrated that induced aborion had obvious untoward effect on pregnancy such as prolonged third stage of labor and increased incidence of placental abnormalities. So, it was necessary to prevent induced aborion for primiparous women.

District management is a new term in universities' ideological and political education.This paper took Chongqing Medical University as an example and gave a general introduction to the universities' ideological and political education from the background,outstanding features and advantages including settling counselors in district,arousing enthusiasm for work,managing by functional departments together,faculties and students taking part in district management,etc.All these measures can be of help to universities' ideological and political educators.

BACKGROUND:Mesenchymal stem cells from transgenic animals carry green fluorescent protein that can be stably expressed in viable cells and can be used to rapidly screen modified cells in comparison with traditional virus and plasmids. OBJECTIVE:To study the biological features of bone marrow derived stromal cells from transgenic rats with green fluorescent protein gene. METHODS:Bone marrows were isolated from the bilateral long bones of 2-week-old transgenic rats with green fluorescent protein gene, and cultivated in conditioned culture medium to obtain bone marrow mesenchymal stem cells with green fluorescent protein gene. The passage 5 bone marrow mesenchymal stem cells with green fluorescent protein gene were analyzed by flow cytometry to detect cellsurface molecules, and were induced in calcium or adipogenic induction medium. After calcium induction, the alizarin red staining was performed to test the formation of calcium concentration. After adipogenic induction, bone marrow mesenchymal stem cells were detected with oil red O staining. RESULTS AND CONCLUSION:Bone marrow mesenchymal stem cells, stably expressing green fluorescent protein gene, were obtained successful y from the transgenic rat with green fluorescent protein gene. The cells expressed CD90, CD105 strongly, but did not express or weakly expressed CD14 andCD45. After 3 weeks of calcium induction, jacinth calcium salts could be detected in the cells by alizarin red staining. At 3 weeks of adipogenic induction, the cells showed positive oil red O staining. The green fluorescent protein gene, as report gene, exerts no effect on the cellsurface molecules and multilineage potential of bone marrow mesenchymal stem cells, which can be used as an efficient tracer.

Objective To study the effects of cataract extraction (ECCE) and posterior chamber intraocular lens implantation( PC-IOL) or with antiglaucoma operation in secondary glaucoma caused by senile intumescent cataract.Methods To operation of ECCE and PC-IOL、or with antiglaucoma operation was performed in 26 cases(26eyes) with acute secondary glaucomacaused by senile intumescent cataract. Follow up 3~12 months after operation. Results The corrected visualacuity of 17eyes (65.4%) was up to 0.5, 22eyes had normal IOP postoperatively.Conclusions The clinical results showed that operation of ECCE and PC-IOL or with antiglaucoma operation is very good.

Variants of gene loci on susceptibility genes are the major individual susceptibility factors of esophageal squamous cell carcinoma (ESCC) in China.Some of the gene loci participate in the DNA damage and repair,and some are related with cancer suppressor genes,metabolism enzymes,trace elements and smoking.The single nucleotide polymorphisms of these susceptibility genes are closely correlated with the genesis of ESCC.