BACKGROUND:The cruciate ligament of the knee joint has a poor capacity of self-healing after injury, and the main treatment is grafting to reconstruct cruciate ligament.
OBJECTIVE:To summarize the structure, function, and mechanical characteristics of anterior cruciate ligament of the knee joint, the present research of artificial ligament reconstruction fol owing damage, and to provide evidences for clinical application of artificial ligament.
METHODS:An online computer-based retrieval was performed with the key words of“artificial y synthetic materials, knee joint cruciate ligament, exercise, ligament repair, ligament reconstruction”. Articles related to knee ligament treatment approach, materials science characteristics, biocompatibility and application were included. A total of 25 articles addressing the properties of biological materials applied in knee cruciate ligament reconstruction were screened.
RESULTS AND CONCLUSION:As an effective treatment for anterior cruciate ligament injuries, technique of anterior cruciate ligament reconstruction has been developed in recent years. Implants for repairing anterior cruciate ligament injuries include autologous ligaments, ligament al ograft, artificial ligaments, and tissue engineered ligament. Artificial materials and tissue engineered ligaments are the hotspots in recent years. Biological artificial ligament is effective to treat the knee ligament injury. celland molecular biology techniques as wel as the use of gene therapy wil become a new direction in the treatment of knee ligament injury and rehabilitation.

Objective:To observe the clinical effects of tuina manipulations plus the functional training on scapulohumeral periarthritis (SP), and provide the better therapeutic plan for SP patients. Methods: A total of76 cases with SP in conformity with the inclusion criteria were randomly divided into a tuina group and an acupuncture group, 38 patients in each group. All the patients were instructed to do functional training under the guidance of the professional medical practitioners. The patients in the tuina group were treated additionally with tuina manipulations, while the patients in the acupuncture group were added with acupuncture treatment. The two groups were treated once every day. After ten sessions, the changes in the scores of visual analog scale (VAS) and Melle were observed, and the clinical effect was compared. Results:After the treatment, VAS and Melle scores were all lower in the tuina group than those in the acupuncture group, with statistical significances between the two groups (P<0.05). The remarkable effective rate was 5.3% in the acupuncture group and 21.1% in the tuina group. The remarkable effective rate was higher in the tuina group than that in the acupuncture group, with a statistical significance (P<0.05). Conclusion:Tuina manipulations plus functional training for SP can effectively alleviate pain and restore the functions of the shoulder joint, with a better effect than acupuncture plus functional training.

Objective:To explore the main influencing factors for cardiopulmonary resuscitation (CPR ) in patients with perioperative cardiac arrest .Methods:A total of 168 patients ,who received surgery and suffered from cardiac arrest during perioperative period in our hospital from Jun 2012 to Jun 2014 ,were selected .According to recovery outcome of spontaneous circulation ,they were divided into success group (n=67) and failure group (n=101) .Case information were retrospectively analyzed in two groups ,including American Society of Anesthesiologists (ASA) class at hospitalization ,surgical sites ,monitor before cardiac arrest ,location when cardiac arrest occurred , dose of amiodarone ,volumes of bleeding and blood transfusion ,time of cardiac arrest during surgery ,CPR duration and timing etc .,and they were statistically analyzed between two groups .Results:There were significant difference in ASA class ,location when cardiac arrest occurred ,baseline ECG rhythm ,shock before cardiac arrest ,adrenaline dose ,CPR duration and timing between two groups ,P<0.05 or <0.01. Multifactor Logistic regression analysis in‐dicated that being outside operating room when cardiac arrest occurred (OR=9.72 ,95% CI=3.16~67.33) ,non-shockable rhythm (OR=8.33 ,95% CI=2.77~22.87) ,shock before cardiac arrest (OR=5.17 ,95% CI=3.23~16.13) ,adrenaline dose (OR=6.84 ,95% CI=2.61~44.75) ,CPR duration (OR=6.14 ,95% CI=1.77~17.21) and CPR timing >1min (OR=7.51 ,95% CI=2.57~41.93) were independent risk factors for prognosis of periop‐erative CPR , P< 0.05 or < 0.01. Conclusion:Being outside operating room when cardiac arrest occurs , non -shockable rhythm ,shock before cardiac arrest ,adrenaline dose ,CPR duration and CPR timing > 1min are inde‐pendent risk factors for prognosis of perioperative CPR . Cardioc arrest calls for instant CPR .

OBJECTIVE:How to explain and predict individual difference of artificial cochlea so as to evaluate rehabilitative effect of implant has been paid much attention by audiological scholars,clinical physicians,patients,and their relatives. This study was designed to analyze and evaluate rehabilitative status of patients accepting artificial cochlea implantation to investigate the relative influential factors of auditory rehabilitation. METHODS:A total of 28 patients were selected from Department of Otolaryngology Head and Neck,Affiliated Hospital of Qingdao Medical College from June 2002 to April 2008. They were accessed by age,time of rehabilitation training,usage of hearing aids,audiology and aural image before surgery,and NRT monitoring in cochlear implantation so as to observe auditory improvement. The clinical results were analyzed to detect the effect of various factors on auditory rehabilitation. RESULTS:Age,preoperative preparations and good audiology and aural image are important premises for a successful rehabilitation. Longer the time of using hearing aids and language rehabilitation are,and better results will get. NRT response during operation is also an important factor for good auditory rehabilitation. CONCLUSION:The influential factors of auditory rehabilitation after cochlear implant included the age,audition remains,usage of hearing aids,NRT response during operation,and the time after the cochlear implant operation.

Objective To investigate the effect of rehabilitation nursing system of manipulative reduction and tradi-tional Chinese medicine fumigation treatment to alleviate the clinical stage of lumbar intervertebral disc protrusion promoting effect.Methods 200 cases of remission in patients with lumbar disc herniation were divided into intervention group and con-trol group with 100 cases in each group, the control group of the implementation of general nursing, intervention group re-ceived rehabilitation nursing system based on general nursing.Results 20 days later, compare the lumbar function score, the intervention group was significantly better than the control group, and the difference was statistically significant (p<0.01). The intervention group: the total efficiency of 98%.Control group: the total efficiency of 85%.The total efficiency of two groups were significant difference ( p <0.05 ) .Conclusion rehabilitation nursing treatment to alleviate the superposition effect of lumbar disc herniation, has an important significance to improve the clinical efficacy and quality of life.

Biomarkers, Tumor ; Humans ; Lung Neoplasms ; Mesothelioma

ObjectiveTo explore the endocytic pathway of TAT-LHRH modified chitosan/DNA nanoparticle (TLCDN) that exhibits high transfection efficiency and targeting to HepG2.MethodsPlasmid DNA was labeled with fluorescein,and the resulting fluorescent DNA was complexed with chitosan or TAT-LHRH modified chitosan to form chitosan/DNA nanoparticle (CDN) and TLCDN by the complex coacervation method.Internalization of TLCDN or CDN by HepG2 cells were measured in the presence of three kinds of inhibitors of endocytic pathway,Chlorpromazine,Filipin or Dynasore,using High-Content Analyzer to collect and analyze the data.ResultsChlorpromazine led to more decreased uptake of CDN than that of TLCDN,although not statistically significant.Filipin demonstrated significant inhibitory effect on the uptake of TLCDN while promoted the uptake of CDN.Dynasore resulted in a similar decrease in the uptake of both nanoprticles.ConclusionIt was demonstrated that CDN was taken up by HepG2 cells mainly through the clathrin-dependent endocytic pathway and TLCDN was more likely to be internalized by HepG2 cells through the caveolin-mediated endocytic pathway although the clathrin-dependent endocytic pathway was also involved.

Objective To determine activity concentrations of natural and artificial radionuclides in the surface soils in Huhhot city,measure environmental radiation level,and evaluate risks to residents health.Methods Radionuclides in 48 surface soil samples were determined by means of the high purity germanium γ spectrometer;environmental radiation level was measured using an environment γ dose rate meter;comparison was made of average activity concentrations in soils between domestically and globally;and the radiation dose to the local residents was estimated by using the methods recommended by UNSCEAR and reported in the related literatures.Results The average values for specific activity of 238U,232Th,226 Ra,40K and137 Cs in the surface soil samples in Huhhot city were (29.29 ± 12.95),(39.33±4.34),(29.77 ±3.21),(650.49 ±62.21) and (1.62 ± 1.53) Bq/kg,respectively;the measured air absorbed dose rate was (86.32 ± 11.92) nGy/h;the annual effective dose to local residents from outdoor γ radiation was 79.27 μSv/year.Conclusions The specific activities of radionulcides in soils and the environmental radiation in surface soil in Huhhot city were at a normal background level,with low risks to health of the local residents.

Objective To explore the electrophysiological examination results and risk factors of type 2 diabetic peripheral neuropathy. Methods 337 patients with type 2 diabetes from August 2014 to December 2016 in the first people's hospital in Shizuishan city were divided into DPN group (n=218) and NPDN group(n=119) according to the results of NCV and SSR examinations. The general information and laboratory biochemical indicators in the two groups were compared. Multivariate Logistic regression was used to analyze the risk factors of DPN. Results The diagnosis rate of DPN detected by NCV combined with SSR was higher than that of NCV or SSR alone(P<0.05);There were significant differences in age,duration of diabetes,history of hypertension,systolic blood pressure,2h FBG,HbA1c,FINS,2 h INS,FC-P, 2h FC-P,ACR between the DPN group and NPDN group(P<0.05);Logistic multivariable analysis showed that age, duration of diabetes, 2h FBG, HbA1c, ACR were independent risk factors for DPN. Conclusion It is beneficial to increase the diagnosis rate of DPN by NCV combined with SSR. There is a higher incidence rate of DPN type 2 diabetes patients with older grade, longer duration of diabetes, higher 2h FBG, HbA1c and ACR.

Objective To prepare stable aqueous dispersions of chitosan/multi-walled carbon nanotubes (CS/MWCNTs) composites,and observe the effects of CS/MWCNTs on the growth of human umbilical vein endothelial cells (HUVEC).Methods CS/MWCNTs composites were prepared by electrostatic interactions between negatively charged MWCNTs and positively charged low-molecular-weight CS.The prepared CS/MWCNTs were characterized by transmission electron microscopy and Zetasizer nano-analyser.The cellular uptake of the fluorescently labeled CS/MWCNTs was observed by laser confocal microscopy after incubating with HUVEC for 24 h at different concentrations.In vitro cytotoxicity and cellular reactive oxygen were also detected.Results When the mass ratio of low-molecular-weight CS to MWCNTs was equal or greater than 10∶1,the CS/MWCNTs can be stabilized in solution.Cellular uptake experiments showed that the CS/MWCNTs could enter into the cells and locate mainly in the cytoplasm.Cytotoxicity study showed that the CS/MWCNTs composites was less toxic than MWCNTs alone at high concentration (10 and 20 μg/ml).However,there was no significant differencein the level of cellular reactive oxygen between the two groups (P＜0.05).Conclusions CS/MWCNTs composites showed low cytotoxicity and high stability,which would be a promising carrier for drug delivery.