ObjectiveTo investigate the cause and characteristics of sports-related spinal cord injury. MethodsAll 38 sports-related spinal cord injury patients admitted in China Rehabilitation Research Center were analyzed retrospectively. Results84.2% （32/38） were male, mean of age was 23.4 (5～58). Diving was the most cause to sports-related spinal cord injury (27/38). Except 2 patients with no fracture and 1 with lumbar fracture, other patients were all with the cervical fractures, in which 57.9% were burst fractures, 18.4% were fracture and dislocations. 47.2% were complete spinal cord injury, 58.2% were incomplete. As for their professions, 10.5% were athletes, 31.6% were students. ConclusionSports-related spinal cord injury can happen in athletes and others, most of them are younger, disability of different degree remains. It is important to prevent sports-related spinal cord injury.

There is still evident gap between the humanity education of medical college in China and the foreign country's.We can find the heart of the matter and explore ways of solving the problem,by comparing the present condition of the humanity education of medical college in China and the foreign country's.

Objective: To investigate the nootropic components of Hovenia dulcis. Methods: Six saponins were isolated from Hovenia dulcis and Step-down test was used to examine the memory ability of mice. The escape latency and the times of wrong performance within 3 min were used to evaluate the memory ability of mice. To study the effects of saponins on learning and memory in mice, we divided the mice into 6 groups: youth group, aged group, aged plus piracetam(0.3 g/kg) group, aged plus saponins (0.6 g/kg) group, aged plus saponins (0.3 g/kg) group, and aged plus saponins(0.15 g/kg) group. To study the influence of saponins on impairment of memory acquirement, consolidation, and reoccurrence (induced by scopolamine, sodium nitrite and 40% ethanol, respectively), mice were also divided into the following 7 groups: control group, untreated group, Piracetam group (0.3 g/kg), compound 3 group(0.3 g/kg), compound 4 group(0.3 g/kg), compound 5 group(0.3 g/kg), and compound 6 group (0.3 g/kg). Results: The chemical structures of six saponins were elucidated as 3-O-stigmasterol-(6-O- palmitoyl)-β-D-glucopyranoside (1), β-daucosterin (2), hovenidulcioside A1 (3), hoduloside I (4), hoduloside IV (5), and saponins C2 (6). Among them, compounds 1 and 2 were isolated from this plant for the first time. Compounds 5 and 6 had enhancing effect on the learning and memory ability of natural senile mice, and they could improve the impairment of memory acquirement, consolidation and recurrence in mice induced by scopolamine, sodium nitrite and 40% ethanol, respectively. Conclusion: The aglycone of jujubogenin might be the main saponins contributing to the nootropic effect of total saponins from Hovenia dulcis.

Objective: To observe the differential expression of epithelial membrane antigen (EMA) and renal cell carcinoma marker (RCC-Ma) in early renal carcinoma and corresponding adjacent (0.5, 1.0, and 2.0 cm) tissues, so as to estimate the safe margin of laparoscopic partial nephrectomy for renal tumors. Methods: Tissue microarrys, including 44 tissues of clear cell renal cell carcinoma[A] and normal renal cortex tissues of different distances to the tumor: 0.5 cm[B], 1.0 cm[C] and 2.0 cm [D], were constructed. The expression of EMA and RCC-Ma was examined by immunohistochemical staining in the four groups. Results: Intensive membranous and (or) cytoplasmic staining of EMA and RCC-Ma was observed in the cancer and adjacent tissues. The positive rate in group A was significantly higher than those of the other three groups (A [15.91%/ 18.18%], B[84.09%/79.55%], C[86.36%/77.27%] and D[79.55%/75.00%], P<0.01). The positive rates of EMA and RCC-Ma expression were not significantly different between the group B, C, and D(P>0.05). Conclusion: Our data denote that, when laparoscopic partial nephrectomy is done for early renal carcinoma, at least 5 mm of normal parenchyma tissue beyond the pesudocapsule should be excised with the tumor.

To explore the relativity between alexithymia and cognitive function in somatoform disorder patients.A total of 40 patients aged 18-65 years fulfilling the criteria of ICD-10 for somatoform disorders were recruited as research group.And 40 normal healthy subjects were selected as control group.Toronto alexithymia scale-20 (TAS-20) was employed to examine the alexithymia.And cognitive abilities screening instrument (CASI) was used to measure their cognitive ability.The 9-factor scores and total score of CASI test in patients with somatoforill disorder were significantly lower than those in the normal controls (P ＜ 0.05 or ＜ 0.01).The 3-factor scores and total score of TAS-20 test in patients withsomatoforill disorder were significantly higher than those in the normal controls (P ＜ 0.05 or ＜ 0.01).In research group,CASI scores were negatively correlated with the TAS-20 scores (P ＜0.05 or 0.01).

Objective To investigate the relationship between heart failure with normal ejection fraction and cardiac remodeling.Methods One hundred and eighty-eight cases with chronic heart failure were collected from January 2009 to March 2012 from Department of Cardiology of Longkou People's Hospital.In strictly accordance with the diagnostic criteria,participants were divided into HFNEF(n =109) and HFREF groups (n =79).According to the NYHA classification,HFNEF and HFREF patients were further divided into three subgroups respectively (HFNEF patients:52 cardiac function Ⅱ,36 cardiac function Ⅲ,21 cardiac function Ⅳ ;HFREF patients:13 cardiac function Ⅱ,27 cardiac functionⅢ,39 cardiac functionⅣ).The measurements of the left ventricular ejection fraction (LVEF),left atrial diameter (LAD),interventricular septal thickness (IVST),left ventricular posterior wall thickness (LVPWT),right ventricular diameter (RVD) were conducted in all objects and their clinical data were statistically analyzed.Results Compared with HFREF patients,HFNEF group had older mean age ((64.59 ± 5.34) yrs vs.(58.89 ± 4.23) yrs,t =3.345,P =0.001),more female patients (58.7％ (64/109) vs.41.8％ (33/79),x2 =5.265,P =0.022),higher incidence of hypertension (81.65％ (89/109) vs.63.29％ (50/79),x2 =8.012,P =0.005).LVPWT,IVST,LAD,RVD gradually increased in HFNEF patients with the severity of cardiac function,with significant differences in LVPWT ((9.05 ± 1.89) mm vs.(11.30 ± 2.67) mm vs.(13.90 ± 2.77) mm,F =3.578,P =0.028),IVST ((9.35 ±1.75)mm vs.(11.51 ±2.48)mm vs.(12.98 ±3.01)mm,F =3.081,P =0.048),LAD ((31.23 ±5.98)mm vs.(35.55 ±7.31)mm vs.(44.81 ± 10.72)mm,F =6.711,P ＜0.001),but no difference in RVD ((18.95 ±1.02) mm vs.(19.21 ± 1.11) mm vs.(19.99 ± 0.98) mm,F =2.751,P ＞ 0.05).There was significant difference in LVPWT ((13.90 ±2.77)mm vs.(7.45 ±2.01)mm,t =11.439,P ＜0.001),IVST ((12.98 ±3.01)mm vs.(7.23 ± 1.94)mm,t =10.318,P ＜0.001),RVD ((19.99 ±0.98)mm vs.(23.51 ± 1.10)mm,t =2.838,P ＜ 0.001) between HFNEF and HFREF patients with Ⅳ level of cardiac function,while there was no statistical difference ((44.81 ± 10.72) nn vs.(46.30 ± 11.76) mm),t =1.451,P =0.151) on LAD.Conclusion Senior age,high proportions of women and essential hypertension are found in HFNEF patients.Impaired cardiac function has increasing impact on cardiac remodeling with the increase of severity but it almost has no effect on the right ventricle.Ventricular structural changes exist significantly different from HFNEF to HFREF.Therefore clinicians should have in-depth understanding of the characteristics of the HFNEF and its epidemiology,pathophysiology,diagnostic criteria and treatment principles in order to improve diagnosis and treatment of this class of patients.

AIM　To investigate the therapeutic effect of boanmycin (BAM, bleomycin A6) on colon carcinoma 26 and its hepatic metastasis in mice. METHODS　A series of models including subcutaneous transplantation, orthotopic transplantation in cecum subserosa, intra-hepatic transplantation of tumor, and intra-splenic transplantation of tumor accompanied with hepatic metastases were employed. In addition, LEICA Q 500IW image analysis system was used to determine the area of metastatic lesions in the liver in histopathological sections. RESULTS　BAM at 5 mg*kg-1 and 2.5 mg*kg-1 inhibited the growth of subcutaneous tumors by 78.7% and 61.9%, and the orthotopic tumors by 99.4% and 90.0%; and the intra-hepatic tumors by 86.9% and 75.7%, respectively. Determined by the numbers of metastatic nodules, BAM at 10 mg*kg-1 and 5 mg*kg-1 inhibited hepatic metastases from intra-splenic transplantation by 97.6% and 56.8%; and evaluated by image analysis of metastatic lesions, by 100% and 63.3%, respectively. CONCLUSION　Boanmycin is highly effective in a panel of models including the subcutaneous, orthotopic, intra-hepatic transplanted tumors, and hepatic metastases of murine colon carcinoma 26.

Objective To establish osteosarcoma vaccine by the LM9 osteosarcoma derived from C3h mice hybridized with activated B lymphocytes and study its biological behavior and the antitumor efficacy. Methods The LM9 osteosarcoma derived from C3h mice was fused with LPS activated B lymphocytes by using 50%PEG. The fused cells was selected by HAT medium and cultured in vitro, and the biocharacter and efficacy of the fusion vaccine were investigated. Results In contrast to LM8, the fused cells grew significantly slowly in vitro. All the mice under the protection of fused vaccine survived without tumor (8/8), while all the mice in the control group succumbed to the tumor with no survival (8/8), 75%of the mice inoculated subcutaneously with cell fusion vaccine survived without tumor burden after implantation of LM8 cells subcutaneously. The mice in the control group developed tumors and died within 45 days without any exception. Conclusion It is possible that the LM9 osteosarcoma biology characteristics change after fused with LPS activated B lymphocytes. Cell fusion osteosarcoma vaccine could produce prophylactic and therapeutic effects in mice.

OBJECTIVE:To establish the method for assaying bacterial endotoxins in levofloxacin hydrochloride injec?tion.METHODS:The interference test of3batches of levofloxacin hydrochloride injection with2kinds of limulus test agent was studied.RESULTS:The interference between the samples and limulus test agents was eliminable(below1.0mg/ml).The detection results were up to standard.CONCLUSION:The bacterial endotoxin in the sample can be examined by limulus test instead of pyrogen test in rabbits.

The brain -derived neurotrophic factor (BDNF)plays an important role in the development and function of the nervous system.BDNF controls the neuronal survival,differentiation,growth of dendrites and axons,for-mation of synapse,neuronal plasticity and the basic process of learning and memory through a variety of ways,the dys-regulation of which is probably the important molecular mechanism responsible for the onset of autism spectrum disor-der.The research advance on preclinical research and clinical research between BDNF and autism spectrum disorder is reviewed in this paper.