Objective Through the statistical analysis of the student assessment on curriculum quality,through the observation of the current curriculum teaching situation and its cheracteristics to promote the curriculum construction effectively and improve the medical teaching quality.Methods The current study is carried out among 2 841 undergraduates who study in varied majors and different grades in a medical university.A table of Student Evaluation of Course Teaching Quality developed by the researcher is applied to the questionnaire survey and statistical analysis including comparation means test and correlation tests are adopted in the present study to analyze the course teaching quality.Results Initially.the National Selected Model Courses show no significant difference from the common courses;secondly,three variables including teaching content adopting the course syllabus,good professional qualification and teaching capability of teachers and advanced teaching methods and techniques ale highly scored among ten variables;thirdly,the correlation coefficient of the variable of improving self-learning ability and total score is statistically significant and it can be observed higher than that of other variables and total score.Conclusion Establishing student-centered curriculum evaluation and construction of long-effect mechanism,and developing the students'ability of autonomous learning ale important to improve the quality ofthe course.

Objective:To evaluate the literature quality of randomized controlled trials of acupuncture plus rehabilitation for post-stroke limb spasm in the recent ten years in China. Methods:By searching four databases of China National Knowledge Internet (CNKI), Wanfang Academic Journal Full-text Database (Wanfang), Chongqing VIP Database (CQVIP) and Chinese Biomedical Literature Database (CBM), randomized controlled trial (RCT) of acupuncture plus rehabilitation for the treatment of post-stroke limb spasm were screened and selected. In accordance with 2010 edition of the consolidated standards of reporting trials (CONSORT) and standards for reporting interventions in clinical trials of acupuncture (STRICTA), the quality evaluation was processed for RCT documents. Results:Finally, 50 documents were selected. The issues of titles, sample size calculation, application of randomization and blind method, subject’s procedure, conclusion and estimated value, explanation of trial limitation, auxiliary intervention measures and therapeutic plans, and background of therapists exist in most documents. Conclusion:Currently, RCT documents about acupuncture plus rehabilitation for the treatment of post-stroke limb spasm are generally of low quality. In the future, it is necessary to standardize the reports of the clinical trials based upon CONSORT and STRICTA, in order to enhance the document quality.

Objective To compare the characteristics of respiratory distress syndrome(RDS) between early preterm infants and late preterm(LP) infants,and to investigate the high-risk factors and clinical characteristics of RDS in LP infants.Methods A total of 240 premature infants with RDS treated in our hospital from January 2014 to January 2015 were selected and divided into 2 groups according to the gestational age(GA),143 cases in early preterm group (GA <34 weeks) and 97 cases in LP group(GA 34-36 weeks).The basic situation,high risk factors in perinatal period,clinical characteristics,treatment and prognosis in RDS premature infants were retrospectively analyzed.Results The delivery mode in the LP group was mainly dominated by cesarean section,the cesarean section rate reached 83.51%,which was significantly higher than that in the early preterm group (P<0.05).The premature occurrence rate caused by cesarean section because of premonitory uterine rupture was higher (27.84%);the treatment effect of pulmonary surfactant(PS) and noninvasive assisted ventilation therapy in the LP group was inferior to that in the early premature group,moreover the mechanical ventilation rate was higher,the duration of mechanical ventilation was longer;the incidence rates of pulmonary hypertension and intrauterine infection were higher than those in the early preterm group.Conclusion LP infants with RDS are mainly dominated by cesarean section without onset of labor process,intrauterine infection may be its risk factor,PS use is effective,but its effect is more poor than that in the early preterm group,the mechanical ventilation rate in the LP group is higher,but the prognosis is good.

Objective To investigate the new and non-surgical treatment of hemangioma.Methods Totally 53 patients with hemangioma were treated with Nd: YAG laser in our department in recent years. Surface irradiation was used for 6 cases with port wine stain and interstitial irradiation for 14 cases with carvernous hemangioma and the two methods for 9 cases with strawberry hemangioma and 24 cases with mixed hemangioma.Results all the 53 patients were followed-up for 3 years.lesions of 48 cases were removed completely, and lesions of 3 cases were significantly controlled. Only 2 cases were failed in this treatment.Conclusion Resection of maxillofacial hemangioma in children by ND:YAAG laser is a reliable and effective method.

The indexes of teaching quality evaluation,such as attitude,teaching and evaluation,contents and methods,and evaluation standards,such as "excellent,good,medium,bad,worse",show the characteristics of inaccuracy.While traditional evaluation methods focus on accurate figures,the paper proposes a new method which is based on fuzzy mathematics to evaluate teaching quality.The theory,computing procedure and examples of the method are introduced.

Objective To observe the effects of ischemic preconditioning of hindlimb (HIP) on the expressions of heat shock protein70 (HSP70) in spinal cord of rats after spinal cord injury (SCI). MethodSprague Dawleys rats were randomly( random number) divided into three groups (20 rats in each group).In sham injury group, rats received laminectomy without SCI; while in the SCI group, rats received traumatic SCI. In HIP group, rats received HIP 8 h before SCI. The SCI animal models were made by using modified Allen's weight-drop device (50 g·cm) on L3-L4 vertebrae. HIP was induced by compressing the two lower limbs of rats alternately with a tourniquet for three cycles of ten-minute ischaemia followed by ten-minute reperfusion. Rats were sacrificed 24 h and 48 h after injury separately. The protein and mRNA of HSP70 of involved spinal cord segments were determined by using RT-PCR, hybridization in situ and immunohistochemistry. Results There was weak expression of HSP70 mRNA in rats of sham injury group, and sporadic positive cells in spinal tissue were found by using immunohistochemistry. The expressions of HSP70 mRNA 24 h and48 hours after SCI in HIP group[(22.18±3.69) and (14.15 ±4.18)] were higher than those in SCI group[(13.97±4.46) and ( 8.73 ± 3.55 )], and the differences were statistically significant (F=16.06, P = 0.005 and F = 7.43, P = 0. 028). The protein levels of HSP70 24 h and 48 hours after SCI in HIP group [(16.71±4.02) and (9.85±2.20)] were higher than those in SCI group [( 14.85 ± 3.73)and (8.78 ±2.05)], and the differences were statistically significant (F =90. 13, P =0.032 and F=34.70, P = 0. 036). Conclusions HIP can increase the transcription and expression of HSP70 in spinal cord of rats following SCI and may have the protective effects on neural tissue.

Objective To evaluate the diagnostic value of serum retinol binding protein (RBP) on the early stage of type 2 diabet‐ic nephropathy by receiver operating characteristic(ROC)curve .Methods According to urinary albumin(mAlb)/urinary creatinine (UCr) ratio ,155 patients with type 2 diabetes were divided into simple diabetic mellitus group ,early stage of diabetic nephropathy group ,and clinical stage of diabetic nephropathy group ,while healthy people were recruited randomly during the same period as con‐trol group .RBP test were performed by using immunoturbidimetry .The diagnostic value of RBP on in the early stage of type 2 dia‐betic nephropathy were evaluated by analyzing the ROC curve .Results The concentration of serum RBP in the early stage of dia‐betic nephropathy was significantly higher than that in the group of simple diabetic mellitus and control group (P<0 .05) ,the area under the ROC curve of RBP in serum was 0 .770 ,and the cutoff value was 40 .95 mmol/L ,while the sensitivity and the specificity were 81 .0% and 95 .2% .Conclusion RBP was a good marker in detecting early renal damage .

BACKGROUND:Owing to containing large amounts of growth factors, platelet-rich plasma has been widely used in bone regeneration, wound healing, and so on, while few studies have been reported on cartilage tissue engineering. OBJECTIVE:To explore the effects of platelet-rich plasma on the proliferation and differentiation of chondrocytes, and the feasibility of constructing tissue-engineered cartilage by the combination of chondrocytes and platelet-rich plasma. METHODS:We detected the concentrations of transforming growth factor-β, insulin-like growth factor-1, platelet-derived growth factor and epidermal growth factor BB in the whole blood, platelet-rich plasma, and activated platelet-rich plasma. The rabbit articular chondrocytes were cultured in 10%, 15%, 20%, 30%platelet-rich plasma for 7 days, then the cellproliferation was tested by cellcounting kit-8, and cartilage-related genes (col agen type II, Aggrecan, Sox-9) were determined using QT-PCR. The chondrocytes/platelet-rich plasma composite was implanted subcutaneously into the rabbits, and the samples were harvested after 6 weeks of transplantation for histological examination. RESULTS AND CONCLUSION:The levels of different growth factors in the platelet-rich plasma were higher than those in the whole blood (P<0.05), but lower than those in the activated platelet-rich plasma (P<0.05). Platelet-rich plasma at different concentrations promoted the proliferation of chondrocytes. When the concentration of platelet-rich plasma was no more than 20%, the proliferation of chondrocytes showed a concentration-dependent manner. The 20%platelet-rich plasma showed the best effects to promote the expression of col agen type II (P<0.05), while the 15%platelet-rich plasma could maximize the expression of Sox-9 and Aggrecan (P<0.05). After transplantation of chondrocytes/platelet-rich plasma composite, cartilage-like tissue formed with cartilage lacuna-like structures, and rich extracellular matrix was found, which indicates platelet-rich plasma can be used as an injective scaffold in cartilage tissue engineering.

Background and purpose: Accumulating evidence has revealed that long non-coding RNA (lncRNA) is correlated with carcinogenesis and tumor development. Recent literature suggested that lncRNA promoter of CDKN1A antisense DNA damage activated RNA (PANDAR) was involved in the development of various cancers. However, the functional role of PANDAR in colorectal cancer (CRC) has not been elucidated yet. The present study aimed to explore the functional role of lncRNA PANDAR in promoting CRC metastasis and its mechanism.Methods: The expression of lncRNA PANDAR in CRC cell lines and tissues was detected by real-time fluorescent quantitative polymerase chain reaction (RTFQ-PCR), and the correlation between lncRNA PANDAR expression and CRC clinicopathological characteristics was statistically analyzed. Then, lncRNA PANDAR stably silencing CRC cells (HCT116-shPANDAR), overexpression cells (DLD1-PANDAR) and control vector cells (HCT116-shNC and DLD1-vector) were established using lentiviral vectors. Moreover, Transwell assay and Matrigel assay were performed to investigate the function of lncRNA PANDAR in CRC migration and invasion. Furthermore, the expression of transcriptional factors mediating epithelial-mesenchymal transition of lncRNA PANDAR overexpression cells were monitored by RTFQ-PCR assay, and the function of the target gene in modulating lncRNA PANDAR mediated CRC metastasis was also explored. Results: The expression levels of lncRNA PANDAR in normal colorectal epithelial cells were much lower than in CRC cell. The levels of lncRNA PANDAR in tumor-adjacent tissues were verified to be much lower than in CRC tissues [(171.52±97.80)% vs (100.00±63.18)%, P<0.05]. Moreover, the expression of lncRNA PANDAR was detected to be significantly correlated with CRC TNM stage, lymph node metastasis and distant metastasis (P<0.05). Besides, lncRNA PANDAR deficiency significantly reduced the migration [100.00% vs (42.08±4.77)%, P<0.05] and invasion [100.00% vs (39.14±3.81)%, P<0.05] capabilities in CRC cells, in contrast, the migration [100.00% vs (194.12±9.33)%, P<0.05] and invasion [100.00% vs (204.08±12.27)%, P<0.05] capa-bilities of CRC cells were obviously increased with lncRNA PANDAR overexpression. Furthermore, zinc-finger E-box binding homeobox 1 (ZEB1) expression was detected to be positively correlated with lncRNA PANDAR expression, and ZEB1 silencing could significantly reverse the increased migration and invasion capabilities induced by lncRNA PANDAR in CRC cells. Conclusion: LncRNA PANDAR could promote CRC metastasis by potentially targeting ZEB1. LncRNA PANDAR might be a promising diagnostic marker and therapeutic target for CRC patients.

The TGF-βsignaling pathway plays a crucial role in regulating cell proliferation, differentiation, and apoptosis. This pathway exerts either tumor-suppressing or tumor-promoting effects, which are cell-or context-dependent, making it simultaneously advanta-geous and disadvantageous in the process of carcinogenesis and tumor progression. Long non-coding RNAs (lncRNAs) do not encode proteins, but they are involved in the regulation of various signaling pathways and biological functions. Moreover, lncRNAs can induce tumor angiogenesis, as well as affect tumor proliferation, invasion, and metastasis by acting as oncogenes or tumor-suppressor genes. Recent studies revealed that some lncRNAs may be induced and regulated by TGF-βto form a complicated crosslinked regulatory net-work. This review focuses on the crosstalk between the TGF-βsignaling pathway and TGF-β-induced lncRNAs.