BACKGROUND: Human umbilical cord Wharton's jelly-derived mesenchymal stem cells (hWJCs) via transplantation are able to survive in a dog model of intervertebral disc degeneration and to partially restore the height of the intervertebral disc. However, there is no study on whether hWJCs can repair nucleus pulposus cells after inflammatory injury as yet. OBJECTIVE: To observe the protective effect of hWJCs on interleukin-1β induced rat nucleus pulposus degeneration.METHODS: Nucleus pulposus cells at passage 3 from Sprague-Dawley rats were divided into three groups: (1) normal control group cultured in culture medium containing fetal bovine serum for 24 hours, and then cultured in complete medium for 24 hours; (2) intervention group with interleukin-1β intervention for 24 hours, followed by culture in the complete medium for 24 hours; (3) co-culture group with interleukin-1β intervention for 24 hours, followed by culture in the complete medium for non-direct co-culture with hWJCs for 24 hours. Annexin V-FITC/propidium iodide (PI) double staining and flow cytometry were used in succession to measure the apoptosis rate of nucleus pulposus cells in each group. The ADAMTS-4, MMPs-3 and TIMP-1 expression in nucleus pulposus cells was observed though RT-PCR. The activities of caspase-3, caspase-8 and caspase-9 were determined by caspase kit.RESULTS AND CONCLUSION: The apoptosis rates were ranked as follows: the intervention group > co-culture group > normal control group, and there were significant differences between groups (P < 0.05). Compared with the control group,the expression levels of ADAMTS-4 and MMPs-3 were significantly higher and the expression level of TIMP-1 was significantly lower in the intervention and co-culture groups (P < 0.05). Compared with the intervention group, the expression levels of ADAMTS-4 and MMPs-3 were significantly lower and the expression level of TIMP-1 was significantly higher in the co-culture group (P < 0.05). The expression activities of caspase-3, caspase-8 and caspase-9 were highest in the intervention group, followed by the co-culture group, and lowest in the normal control group, and there were significant differences between groups (P < 0.05). To conclude, hWJCs has obviously inhibitory effect on the apoptosis of degenerated nucleus pulposus cells induced by interleukin-1β.

This study was aimed to summarize and analyze acupoint selection rule of acupuncture in the treatment of primary dysmenorrhea in recent years,and to guide acupoint selection and compatibility in clinical practice.Relevant literatures in recent years were retrieved from the China National Knowledge Infrastructure (CNKI) full-text database.And then,literatures involving acupuncture prescriptions were summarized.Data were integrated and input.Finally,the SPSS software was combined to analyze the data of acupoint selection in the acupuncture prescription to achieve the conclusion.The results showed that in the acupuncture treatment of primary dysmenorrhea,the main meridian selections were the Ren Meridian and the Spleen Meridian of Foot Taiyin.The generally used acupoints were SP6-Sanyinjiao,RN4-Guanyuan,SPS-Diji,and etc.The multi-point compatibility therapy was used.It was concluded that although the advantages of acupuncture in the treatment of primary dysmenorrhea are prominent,the pathogenesis is mainly related to the liver,spleen and kidney,which are recognized by most physicians.However,there are still large differences in acupoint compatibility and acupoint selection.Hence,there are still no unified,scientific and standardized diagnosis and treatment standards.Further exploration should be made to guide clinical practice.

The paper introduces the research idea, design and realization of the distributed Naive Bayesian intelligent diagnosis sys-tem based on Hadoop, makes optimization and improvement according to its application in Traditional Chinese Medicine ( TCM) Hospital of Guangdong Province, including algorithm design improvement and enhancement of accuracy, extensibility and security of the system.

This study was aimed to explore the medication rules of Chinese herbal medicine compound in the treatment of primary dysmenorrheal based on data mining.Relevant literatures on Chinese herbal medicine compound in the treatment of primary dysmenorrhea were retrieved from June 2006 to June 2016 in the Chinese Journal Full-text Database (CNKI) to establish a literature database.The Excel 2010,SPSS 22.0 and SPSS Modeler 14.2 software were used in the frequency analysis,cluster analysis,association analysis,and etc.The results showed that literatures related to Chinese herbal medicine compound in the treatment of primary dysmenorrhea,there were 74 compound formula and 76 kinds of Chinese herbal medicine involved.Angelica was the core single Chinese herbal medicine.Chinese herbal medicine with high-frequency usage was the type of removing blood stasis,invigorating qi and blood.Cluster analysis can form 5 clustering combination.Primary dysmenorrhea was mainly clustered to two syndromes,which were qi and blood deficiency with blood stasis,liver and kidney deficiency with qi stagnation and blood stasis.The association rules analysis showed that there were a total of 25 rules,with the most common combination of two or multiple combination from four kinds of Chinese herbal medicine,including Angelica,Radix Paeoniae Alba,Rhizoma Chuanxiong,and Rhizoma Corydalis.It was concluded that blood stasis was the direct cause of primary dysmenorrhea,many of which belonged to the deficiency of root (i.e.,deficiency of qi,blood and cold deficiency) and excess of branch.Chinese herbal medicine treatment should be focused on the regulation of both qi and blood,invigoration of both liver and kidney,as well as harmonization of the blood.

Objective To investigate the role of preoperative peripheral blood neutrophil to lymphocyte ratio (NLR),platelet to lymphocyte ratio (PLR),prognostic nutritional index (PNI) in the prognosis of patients with hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC) after radical operation.Methods This is a retrospective study,involving 426 surgically resected hepatitis B related hepatocellular carcinoma cases in a single center from 2003 to 2012.Results Kaplan-Meier analysis showed patients in NLR ≤ 1.62 group achieve higher rate of recurrence-free and overall survival than that in the NLR ＞ 1.62 group,the difference was statistically significant (P ＜ 0.005);Also PNI ＞ 49.42 group showed higher rate of overall survival significantly than PNI≤49.42 group (P ＜ 0.005).The results of Cox regression multivariate analysis further suggested that both NLR ＞ 1.62 (HR 1.74,P =0.007) and PNI ≤49.42 (HR 0.70,P =0.021) were independent risk factors for overall survival,NLR ＞ 1.62 (HR 1.45,P =0.03) was also an independent risk factor for recurrence-free survival.Conclusion The preoperative NLR and PNI may be independent risk factors for prognosis of patients with HBV-related HCC after radical operation.

Objective To investigate the feasibility and safety of endoscopic treatment of ureteral calculi acute obstruction with urinary extravasation. Methods 56 patients with ureteral calculi acute obstruction and urinary extravasation were randomly divided into two groups:the treatment group and the control group,28 cases in each group. Patients in the treatment group were given URSL or percutaneous nephrostomy drainage, and the secondary fistula was given URSL stone clearance treatment. Patients in control group were given traditional ureterolithotomy treatment. The stone clearance rate, the average recovery time after surgery, postoperative wound infection rate and the abnormal rate of postoperative albumin were observed in two groups. Results In the treatment group,28 patients had no residual stones with mean postoperative recovery time of (5.2 1.3) days,postoperative fever was found in 3 cases,obvious abnormal postoperative albumin in 3 cases. In the control group,residual stones were found in 3 cases,the average recovery time after surgery was (7.9 2.6) days,postoperative fever was found in 10 cases, and obvious abnormal postoperative albumin in 11 cases. There were statistically significant differences in stone clearance rate, the average recovery time after surgery, postoperative wound infection rate and the abnormal rate of postoperative albumin between two groups (P<0.05) . Conclusion Endoscopic treatment of ureteral calculi acute obstruction and urinary extravasation has advantages including better efficacy, less trauma, less complications and quicker recovery.

This study shows the case of a patient with peroneus brevis tendon rupture in ankle fracture. The patient com-plained of swelling, pain and activity limitation in her right ankle caused by sprain. She was diagnosed with ankle fracture, supina-tion-adduction (Lauge-Hansen typing) by medical history, physical examination and imaging. The peroneus brevis tendon was not-ed complete ruptured when suturing the incision after ORIF, which was then repaired by "8" shaped suture. Based on literature re-view, the injury mechanism of the case may be because of overload inversion force toward to lateral inferior from the fracture of fib-ula on the peroneus brevis tendon. Additional attention should be paid to patients who suffered from an supination-adduction ankle fracture for whether peroneus brevis tendon tears before and during surgery.

Biological central pattern generator(CPG)is of great research significance to the gait control for hexapod robot.Therefore,a Kimura neural oscillator based CPG gait control strategy for hexapod robot is proposed.The mechanical structure of hexapod robot is designed with the spider as the bionic object,and its kinematics is solved.An oscillator model is established based on Kimura neural oscillator,and its parameters are adjusted.The CPG network model is designed according to the phase relation of the 6 legs of the robot.Gait experiments are conducted with computer simulation tools and prototypes.The results demonstrate that the output signal amplitude and phase difference of the CPG network model generated based on Kimura neural oscillator are stable,meeting the gait control requirements of hexapod robot.The study provides a feasible gait control strategy for hexapod robot.

A foot trajectory control method is proposed for biomimetic robot.Compared with traditional methods,the method uses a single CPG neuron to directly apply the foot trajectory generated by the oscillator to the hexapod robot.The joint angles is solved reversely for realizing the rhythmic foot swing,thereby achieving lateral walking.The step distance and step amplitude in foot trajectory,and the forward and backward swing trajectories during the swing phase can be adjusted by setting the load factor,period,amplitude and other parameters in the CPG oscillator.The feasibility of applying the improved Hopf model to foot trajectory is verified through the joint simulation using Matlab and Coppeliasim.Compared with traditional methods,the improved model has high flexibility in parameter adjustment and performs well in concurrency processing.

Objective: To explore the relationship between childhood abuse, adult attachment and borderline personality disorder (BPD) in college students, and to provide reference for promoting the physical and mental health of college students. Methods: We selected undergraduate students from four colleges in Hefei, a total of 4 034 college students were surveyed by the childhood trauma questionnaire short form(CTQ-SF), the state adult attachment measure (SAAM) and the Personality Diagnostic Questionnaire(PDQ). Results: BPD was found in 4.2% of subjects, 4.5% of males and 3.7% of females. The score of BPD in non-single-parent families was lower than that in single-parent families, in families with average family economic status was lower than that in families with poor and good family economic status, and in families with medium father education level was lower than that in fathers with low and high education level(Z=-2.30, 29.25, 9.63, P<0.05). Childhood abuse, avoidant attachment and anxious attachment positively predicted BPD(β=0.21, 0.10, 0.23, P<0.01), secure attachment negatively predicted BPD(β=-0.15, P<0.01). Adult attachment played a partial mediating role in the effects of childhood abuse on BPD, with the mediating effect accounting for 16.7% of the total effect. Conclusion Adult attachment plays a mediating role in the effects of childhood abuse on BPD.