Hip-stressed lower limb specific strength training apparatus is a new kind of training equipment with the combination of specific technical strength training and quantitative evaluating. Base on the mechanism of sports physiology and sports biomechanics, by applying the theory of motor learning and control, the apparatus adopts the training model of the "hip stress loading device" and "hip-feet starting and ending stress point" to simulate the track of working limb in running, jumping and throwing, controls the degrees of body movement freedom reasonably. For the first time, actualizes the heavy load specific strength and sports skill training of leg driving, leg pawing and trunk-backward knees-bend leg driving. The distinctive training pattern of forced track control and the training method of strength & skill coupling" used in this apparatus, makes the action in strength training approach to real sport skill in greatest extent, and shifts the result of strength training to the skill training as much as possible. So it remarkably increase the efficiency of strength training and has an great importance in changing the concept of strength training.

BACKGROUND:As for patients with one-side backleg pain who were candidates for surgery treatment of lumbar intervertebral disc herniation, the common treatment includes lumbar vertebral plate opening and decompression, and laminectomy in combination with compression and bilateral pedicle screw fixation. However, these therapeutic approaches are not satisfactory. OBJECTIVE:To explore the feasibility and efficiency of single-side lumbar interbody fusion and unilateral pedicle screw fixation for treatment of lumbar intervertebral disc herniation patients with one-side backleg pain. METHODS:Forty patients with single-side lumbar disc herniation, suffering from unilateral backleg pain, were recruited from Shihezi People’s Hospital, China and were treated with single-side lumbar interbody fusion and unilateral pedicle screw internal fixation. The neurological function of patients was assayed using Japanese Orthopaedic Association score system before and after treatment, the improvement rate and excellent/good rate were calculated. Suk criterion was used to determine fusion status. RESULTS AND CONCLUSION:The mean fol ow-up period for 40 patients was ranging from 6 months to 60 months. Al incisions healed wel , with no infection. The Japanese Orthopaedic Association score after 6 months of treatment was significantly higher than that before treatment (P<0.05), with the excellent and good rate up to 88%. According to Suk criterion, 38 patients achieved bone graft fusion or possible fusion, with interbody fusion rate 95%, as revealed by radiographic and CT evidence. The remaining two patients were detected fusion at 9 months after treatment. Our findings indicate that, single-cage lumbar interbody fusion combined with single-side pedicle screw fixation is the feasible surgical technique and provides satisfactory effects in treating single-side lumbar disc herniation.

Objective To improve the recognition and MRI diagnosis for intraspinal epidermoid cyst. Methods MRI appearances of 20 cases with histologically confirmed intraspinal epidermoid cyst in the spinal canal were analyzed.Results The lesions were ovoid in 15 cases.The lesions were low signal intensity on T1WI and high signal intensity on T2WI with smooth border,there were no enhancement on contrast-enhanced scan,5 lesions appeared as irregular shape.3 cases showed circular enhancement.Conclusion MRI is of important value in diagnosis of localization and quality of intraspinal epidermoid cyst.

Humans ; Infant ; Lymphohistiocytosis, Hemophagocytic ; complications ; Male ; Mucocutaneous Lymph Node Syndrome ; complications

The radiosensitivity of esophageal carcinoma is one of the bases for making dividualized treatment program.Predition of radiosensitivity before radiotherapy has become a hot spot of the current study.It has been demonstrated that radiosensitivity of esophageal carcinoma is correlated to p53 portein,bcl-2portein,human epidermal growth factor receptors (hEGFR),vascular endothelial growth factor (VEGF),hypoxia-inducible-factor-1 (HIF-1),cyclooxygenase-2(COX-2) and so on.Detection of these markers may be helpful for predicting the radiosensitivity of esophageal carcinonla and making optimal treatment program.In addition,radiosensitivity of tumor can be predicted according to radiation-induced esophagitis grade and endiscopic uhrasonography(EUS).

Background and purpose. Chemotherapy is a standard treatment for patients with advanced stage non-small cell lung cancer (NSCLC) However, platinum based chemotherapeutic regimen haves high toxicity profile to normal tissues. Lobaplatin (LBP) is a new third-generation antitumour platinum drug. Studies abroad have shown that Iobaplatin has an anticancer activity similar to cisplatin with better tolerance and is more effective for those who are resistant to cisplatin. This study was aimed to observe the effectiveness and toxicities of lobaplatin combined with vinorelbine (NVB) for the treatment of advanced NSCLC. Methods: Sixty-four patients pathologically diagnosed as clinical stage Ⅲ_B-Ⅳ NSCLC who did not receive treatment before, were randomly assigned to two groups. NL group (NVB+LBP): LBP at a dose of 30 mg/m~2 intravenous infusion on day 1, and NVB at a dose of 25 mg/m~2 intravenous infusion on days 1 and 8. NP group (NVB+DDP): Cisplatin (DDP) at a dose of 30 mg/m~2 intravenous infusion on day 1, 2 and 3 and NVB at a dose of 25 mg/m~2 intravenous infusion on days 1 and 8. Treatments were repeated every 21-28 days for 3 cycles. Results: For 34 patients of NL group, there were CR (1 cases), PR(13 cases), NC(15 cases), and PD(5 cases). The overall response rate (RR) was 41.2%, disease control rate (DCR) was 85.3%. In NP group: RR was 43.3%, DCR was 83.3% (X~2=0.05, P>0.05). Median overall survival time was 8.6 months and 8.9 months for NL group and NP group, respectively. The main toxicities in NL group were myelosuppression. Digestive toxicity such as anorexia, nausea,vomiting were less than those in the NP group (X~2=7.43, P<0.05), Peripheral hour,toxicity, serious liver and renal toxicity were not observed in NL group. Conclusion: Compared with cisplatin plus vinorelbine, domestic lobaplatin with vinorelbine yielded similar efficacies for NSCLC, but had less toxicity and well tolerate.

As the rapid development of economy necessitates a large number of oil, the contradiction between energy supply and demand is further exacerbated by the dwindling reserves of petroleum resource. Therefore, the research of the renewable cellulosic biomass resources is gaining unprecedented momentum. Because xylose is the second most abundant monosaccharide after glucose in lignocellulose hydrolyzes, high-efficiency bioconversion of xylose becomes one of the vital factors that affect the industrial prospects of lignocellulose application. According to the research progresses in recent years, this review summarized the advances in bioconversion of xylose, which included identification and redesign of the xylose metabolic pathway, engineering the xylose transport pathway and bio-based chemicals production. In order to solve the energy crisis and environmental pollution issues, the development of advanced bio-fuel technology, especially engineering the microbe able to metabolize xylose and produce ethanol by synthetic biology, is environmentally benign and sustainable.
Bacteria ; genetics ; metabolism ; Escherichia coli ; genetics ; metabolism ; Ethanol ; metabolism ; Fermentation ; Fungi ; genetics ; metabolism ; Industrial Microbiology ; methods ; Metabolic Engineering ; Metabolic Networks and Pathways ; genetics ; Saccharomyces cerevisiae ; genetics ; metabolism ; Xylose ; metabolism

Objective To evaluate the relationship between aberrant crypt foci(ACF) and colon cancer by observing the sequential development of ACF in cancer models of rats. Methods The colon cancer models in 60 Wistar rats were established by subcutaneously injection of dimethylhydrasine (DMH) once a week for 18 weeks. The rats were sacrificed and the colon tissues stained by methylene blue were observed with a stereomicroscope. Results There were two types of ACF, named cACF and dACF. The microscopic findings in dACF were similar with that in early colon cancer, while those in cACF were not. The expression of β-catenin in cACF and dACF were 4. 84% and 100% (P =0. 000) , respectively, and the expression of MMP-7 were 7. 87% and 81.82% (P =0. 000), respectively. There was no significant difference in expression of β-catenin and MMP-7 between dACF and colon cancer ( P ＞ 0. 05 ). Conclusion The microscopic and molecular changes in dACF is similar with that in colon cancer, and dACF may progress to cancer through Wnt pathway.

Aim To investigate the inhibitory effect of schizandrin B( SchB) on ultraviolet radiation b ( UVB) radiation-induced apoptosis of HaCaT cells. Methods Methyl thiazolyl tetrazolium ( MTT ) assay was used to examine the effect of SchB on cell viability recovery. Cell apoptosis and necrosis were measured by Ho-chest33342 staining. The p53, p21 and Caspase-3 mRNA expressions were examined by RT-PCR. Results In this study, we found that Sch B attenuated UVB-in-duced toxicity in HaCaT cells. Through Hoechst 33342 stain, we visualized that SchB could inhibit UVB-in-duced HaCaT cell death. The result demonstrated that p53 , p21 and Caspase-3 mRNA levels decreased com-pared with the control group. Conclusions Sch B at-tenuates the UVB-induced toxicity of HaCaT by inhibi-ting apoptotic gene expression. It plays a role in anti-photoaging.

This paper proposes a high specificity and sensitivity algorithm called PromPredictor for recognizing promoter regions in the human genome. PromPredictor extracts compositional features and CpG islands information from genomic sequence,feeding these features as input for a hybrid neural network system (HNN) and then applies the HNN for prediction. It combines a novel promoter recognition model, coding theory, feature selection and dimensionality reduction with machine learning algorithm.Evaluation on Human chromosome 22 was ～66% in sensitivity and ～48% in specificity. Comparison with two other systems revealed that our method had superior sensitivity and specificity in predicting promoter regions. PromPredictor is written in MATLAB and requires Matlab to run. PromPredictor is freely available at http://www.whtelecom.com/Prompredictor.htm.