Objective To study the correlation between maternal serum 25‐OH‐VitD concentration and early‐onset severe pre‐eclampsia(EOSPE) .Methods 5 000 early singleton pregnancy women with gestational age 8-12+6 weeks and without any compli‐cations in the outpatient department of the hospital from January 2013 to January 2015 were enrolled in the study .The levels of ser‐um 25‐OH‐VitD were measured by using chemiluminescence method .Only 2 988 women with Vitamin D deficiency went through regular prenatal care and delivery .The 2 988 women were divided into two groups intervention group and non intervention group whose age ,BMI and gestation age were matched .Intervention group(n=1 490) received vitamin D supplementation ,the non inter‐vention group did not received the supplementation .Those patients who developed EOSPE were counted .Finally ,Patients diagnosed with EOSPE and were Vitamin D deficient(n=118) were divided into two groups late intervention group and non late intervention group .The late intervention group were treated with vitamin D supplementation ,The non late intervention group were only treated routinely .Results Patients with Vitamin D deficiency accounted for 63% ,insufficiency 32% ,normal 5% .The levels of serum 25‐OH‐VitD and VEGF in patients with EOSPE were significantly lower than those in normal control group(P<0 .05) .The occur‐rence rate of EOSPE in 2 988 women was 4 .1% (123 women) .The occurrence rate of EOSPE in intervention group and no interven‐tion group were 2% (30/1 490) and 6% (93/1 498) respectively ,which were statistically different(P<0 .05) .The outcome of ma‐ternal and perinatal infant in late intervention group were not significantly different from those in non late intervention group .Con‐clusion Vitamin D deficiency or insufficiency is a common problem in early pregnant women .The risk of EOSPE increases in early pregnant women with Vitamin D deficiency .Vitamin D supplementation in the first trimester in women with Vitamin D deficiency could significantly decrease the occurrence rate of EOSPE .Vitamin D supplementation in women diagnosed with EOSPE could not change the outcome of maternal and perinatal complications .

In recent years, problem of postgraduate academic misconduct has become more and more serious and has caused the attention of majority of educators and academics. In this paper , the con-notation of postgraduate academic misconduct was defined based on academic standards and comparison was made between academic misconduct and academic corruption. Meanwhile , this paper pointed out problems existed in the current postgraduate academic ethnic construction and analyzed main causes of academic misconduct. Finally, this paper introduced the success experiences of Chongqing Medical Uni-versity in preventing postgraduate academic misconduct from the aspects of system construction , propa-ganda and education, supervision in postgraduate training process, strict control of graduate thesis,etc.

It introduced the standardized management of graduate students' experimental records. On the basis of experimental records standardization, 3 level inspection system including tutors, departments and graduate school plays a very important role in setting up the good habit, getting more reliable experimental results and preventing the happening of misconduct in scientific research.

Objective To understand the academic atmosphere current situation of graduate students and put forward relevant countermeasures to protect the academic integrity of graduate students.Methods The graduate student'scientific ethics and academic atmosphere construction situation of graduate students in 10 colleges and universities in Chongqing were investigated by questionnaire survey and analyzed.Results Through 1555 questionnaires,it was found that the average investment of time on scientific research in gruduate students was insufficient,the motivation of learning was complicated,and the situation of preventing academic misconduct was serious.Conclusion This study suggests that colleges and universities should establish an academic integrity security system for graduate students,including establishment of academic integrity system and specializing academic integrity supervision institutions,and strengthing academic integrity education.

Since the implementation of synergy of medical education, the education of clinical medi-cal postgraduate of academic degree inevitably has faced problems such as the decrease quality of the source of students, unclear training objectives and confused training model, and bad job prospects. Can these problems be solved effectively or not, which is directly related to the coordinated development of clinical medicine professional degree and academic degree. This study analyzes the problems faced by the graduate education of clinical medicine after the synergy of medical education and puts forward the corresponding countermeasures:firstly, to attract excellent clinical medical undergraduates and encourage medical students of related subjects or clinical doctors having working experience to apply for academic degree;secondly, the university, supervisors and graduates need to clear the training target and ensure the quality of graduate education; thirdly, employment guidance should be carried out throughout all the study stage of graduates, and the school should guide the graduates to form correct opinion of employment and to plan their career reasonably.

Tibial plateau fracture is a common acute trauma of the knee joint. At present, there are many studies on its classification and treatment, and minimally invasive treatment has become a research hotspot and mainstream direction of tibial plateau fracture. We summarized the clinical results of minimally invasive treatment of more than 300 cases of tibial plateau fractures, and proposed the concept of core weight-bearing area on tibial plateau, that is, the core weight-bearing area of the tibial plateau of the knee joint under normal motion statuswhile walking and moderate-intensity running. We performed thinsection CT scanning of the knee joint in a male volunteer for three-dimension finite element modeling.The results showed that during the walking state (the load was twice that of gravity), the core weight-bearing area of the medial and lateral plateaus was 389 mm 2 and 363 mm 2, accounting for 33.2% and 42.9% of tibial plateau, respectively;during the moderate-intensity running state (the load was four times that of gravity), the core weight-bearing area of the medial and lateral plateaus was 418 mm 2 and 406 mm 2, accounting for 35.6% and 48.0%of tibial plateau, respectively. Accordingly, tibial plateau fractures are supposed to be divided into core weight-bearing fracture and non-core weight-bearing fracture, and there are significant differences in the treatment ofthese twokinds of fractures: reduction is more demanding for core weight-bearing fracture,and the fracture involves the core area closely, the anatomical reduction is sought; for non-core weight-bearing area, the reduction requirements can be appropriately low demanded, and even in some cases , for example simple avulsion fracture, marginal fracture, some tibial plateau Hoffa fractures,can be treated conservatively. In summary, during clinical diagnosis and treatmentpractice, orthopedic surgeons should take the core weight-bearing area fracture as the core of diagnosis and treatment, strictly evaluate the extent of fracture involvement, select targeted internal fixation materials, and target to promote more accurate, minimally invasive, and individualized treatment of tibial plateau fractures.

Curriculum study is a major phase for medical postgraduate education,however,the patterns of the curriculum system are not uniform among domestic medical colleges,not to mention the uniformed patterns for scientific degree and professional degree.Hence,our school has reformed the curriculum system to set up different curriculum systems for both scientific degree and professional degree according to their different educational goals in an aim to improve the quality of education.

Objective To prepare the coating of dexamethasone-eluting intravascular stent and observe the features of its delayed release in vitro.Methods Spray painting and dipping coating were used respectively to prepare stent coating,and then high performance liquid chromatography(HPLC)was used to detect the drug loading.The stents prepared by dipping coating were set in a flow of 50 ml PBS buffer at a velocity of 20 ml/min,and 0.5 ml buffer was collected at 6 h and 1,2,4,6,8,10,12,15 d respectively with another 0.5 ml fresh PBS being added immediately.The drug content of the 0.5 ml buffer was detected by HPLC for drug sustained release in vitro.Results The drug loading of stents prepared by spray painting was(24.26?5.23)?g,while that stents prepared by dipping coating for 4 d was(93.15?7.83)?g.Drugs were released slowly and the release rate reached 84% at 15 d.Conclusion The dipping coating-prepared stents have evident effect of sustained release.

ObjectiveTo explore the clinical significance of heart-type fatty acid-binding protein (H-FABP) in acute myocardial infarction(AMI) patients. MethodsThe level of H-FABP was assayed within 30 min, 1 h, 2 h, 4 h,6 h and 12 h by enzyme linked immunosorbent assay (ELISA) in 46 AMI patients, and cardiac troponin Ⅰ(cTnⅠ) and creatinine kinase(CK-MB) also was assayed by routine method.The diagnostic accuracy was compared among different methods. ResultsThe diagnostic accuracy of H-FABP[95.7％ (44/46)] was significantly higher than cTnⅠ[65.2％(30/46)] and CK-MB[41.3％ (19/46)](P ＜0.05). The levels of H-FABP, cTnⅠ and CK-MB significantly increased after AMI onset 4,6,12 hrespectively. ConclusionThe diagnosticaccuracy of H-FABP is higher and can be used as a parameter for the early diagnosis of AMI.

Purpose: This study aimed to investigate the changes in microRNA-130a (miR-130a) and its correlation with cardiotoxicity during epirubicin/cyclophosphamide followed by docetaxel plus trastuzumab (EC-D+T) adjuvant chemotherapy in human epidermal growth factor receptor-2-positive (HER2+) breast cancer patients. Methods: A total of 72 HER2+ breast cancer patients who underwent resection and were scheduled to receive EC-D+T adjuvant therapy were consecutively enrolled. The expression of miR-130a and cardiotoxicity (defined as any of the following situations: 1) absolute decline of left ventricular ejection fraction (LVEF) ≥ 10% and LVEF < 53%; 2) heart failure; 3) acute coronary artery syndromes; and 4) fatal arrhythmia) were assessed every 3 months throughout the 15-month EC-D+T treatment. Results: The accumulating cardiotoxicity rate was 12 (16.7%), of which the incidence of heart failure, acute coronary syndrome, life-threatening arrhythmias, ΔLVEF ≥ 10%, and LVEF < 53% was 0 (0.0%), 1 (1.4%), 0 (0.0%), and 12 (16.7%), respectively. Baseline miR-130a expression was negatively correlated with LVEF (%) and positively correlated with cardiac troponin I. The expression of miR-130a gradually increased in both cardiotoxicity and noncardiotoxicity patients during EC-D+T treatment, while the increment of miR-130a was more obvious in cardiotoxicity patients compared with non-cardiotoxicity patients. Further logistic regression and receiver operating characteristic curve analysis indicated that miR-130a was an independent predictive factor for increased cardiotoxicity risk. Conclusion MiR-130a increases constantly and predicts high cardiotoxicity risk during ECD+T adjuvant chemotherapy in HER2+ breast cancer patients.