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.

Prostate cancer is one of the most common malignant tumors in the male urinary system as well as the second leading cause of cancer death in men. Prostate specific antigen (PSA) screening is the main method for the early diagnosis of prostate cancer, but has a low specificity for its detection. In recent years, a variety of tumor markers with high sensitivity and specificity have been found. This review focuses on some of the more promising tumor biomarkers such as prostate cancer antigen 3, early prostate cancer antigen, prostate-specific membrane antigen, alpha-methylacyl-CoA racemase, and vascular endothelial growth factor.
Antigens, Neoplasm ; blood ; Antigens, Surface ; blood ; Biomarkers, Tumor ; blood ; Early Detection of Cancer ; GPI-Linked Proteins ; blood ; Glutamate Carboxypeptidase II ; blood ; Humans ; Male ; Neoplasm Proteins ; blood ; Prostate-Specific Antigen ; blood ; Prostatic Neoplasms ; diagnosis ; Racemases and Epimerases ; blood ; Sensitivity and Specificity ; Vascular Endothelial Growth Factor A ; blood

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.

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 observe the clinical, neuropathogical, neurophysiological characteristics of Charcot-Marie-Tooth disease, type 1A (CMT1A) which was similar to chronic inflammatory demyelinating polyradiculoneuropathy(CIDP).Methods The clinical data, neuroelectrophysiological changes and pathological features of sural nerve biopsy were taken from 2 CMT1A patients who were proven to be 17p12 duplication with CIDP features, and analyzed comprehensively. Results Two CMT1A cases with classical chronic course showed both subacute course and clinical manifestations similar to CIDP, however, the changes of neuroelectrophysiology and pathological characteristics of the nerve biopsy in 2 cases were different from CIDP in some way. We confirmed the chronic inflammatory demyelinating type of the CMT1A patients whom the immunotherapy was effective on.Conclusion The classical CMT1A 17p12 duplication patients who obtained immunotherapy effects might resemble CIDP both in clinical course and manifestation.

AIM: To assess the prevalence of refractive errors in middle school students in Lanzhou city and explore the risk factors for myopia.METHODS: A cross-sectional survey was conducted. A questionnaire assessed the students' socioeconomic background and visual tasks followed by visual acuity assessment and a full eye examination including slit lamp examination, fundus evaluation, retinoscopy, and subjective refraction.RESULTS: Among 2 256 enumerated students aged 15-19 years, 2 037 (90.3%) students had significant refractive errors. Myopia was the leading refractive error (1 951/2 256,86.5%), astigmatism was the second most common refractive error (921/2 256, 40.8%), but amblyopia (10/2 256, 0.4%),strabismus (5/2 256, 0.2%), hyperopia (4/2 256, 0.2%) and other treatable eye disorders were uncommon. Almost 95.3% of students with significant refractive errors wore spectacles before the survey. Age, sex, visual tasks, and a parental history of myopia were risk factors for myopia.CONCLUSION: The prevalence of refractive errors and the risk factors for myopia in schoolchildren in Lanzhou city are similar to those reported in other regions of China.Interventions of myopia progression should be performed to protect the visual acuity of school-aged students.

AIM: To observe the efficacy of Medpor porous polyethylene implants in treatment of enophthalmos combined with orbital fracture.
METHODS: Seventeen cases ( 17 eyes ) with enophthalmos caused by orbital fracture underwent surgical treatment with Medpor porous polyethylene implants. All accepted a 6-mo follow-up and the data of enophthalmos, eyeball movement and diplopia were collected.
RESULTS: The average difference of exophthalmos between damaged eyes and undamaged eyes was (3. 4±1. 5 ) mm preoperatively, two cases had residual 1mm enophthalmos 6mo after surgery, while other 15 cases were completely corrected. Seventeen cases suffered from eyeball movement restriction and diplopia preoperatively, 16 cases had normal eyeball movement without diplopia 6mo after surgery, 1 case with limitation of abduction and horizontal diplopia. There was no extrusion, rejection, infection or other complications occurred during follow-up.
CONCLUSION: Medpor porous polyethylene implants can effectively improve the orbit volume to repair enophthalmos caused by orbital fracture.