Objective To understand the death level and main death causes among residents in the Wansheng Economic De‐velopment Zone to provide the basis for comprehensive prevention and control .Methods According to the ICD‐10 international classification of diseases ,the death causes were classified and coded for statistically analyzing the crude mortality rate ,standardized mortality rate and the death causes constituents in this surveyed population .Results The crude mortality rate of residents in Wan‐sheng Economic Development Zone during 2014 was 650 .57/100 000 and the standardized mortality rate was 413 .35/100 000 .The sequence of death causes was circulatory system disease ,respiratory system disease ,tumor ,injury and poisoning and digestive sys‐tem diseases .The death number for these 5 kinds of death causes accounted for 93 .21% of the total death number .The top five of potential life loss years were injury and poisoning ,tumor ,circulatory system disease ,respiratory system disease and digestive system diseases .The rates of potential years of life loss were 13 .76‰ ,10 .19‰ ,8 .35‰ ,4 .84‰ and 2 .69‰ respectively .Conclusion Chronic noncommunicable diseases ,injury and poisoning become the main causes of death in the Wansheng Economic Development Zone and disease burden .

Bone Marrow Mesenchymal Stem Cells (BMSCs) are ideal seed cells for cell therapy,which have been through many long-term studies of in vitro and animal disease model treatment and have been widely used in preventing and treating a variety of clinical diseases caused by aging and other damage,including bone injury and regeneration,neural degenerative and injury,myocardial injury,liver cirrhosis,diabetes,lung disease and so on.BMSCs application in the treatment of orthopaedic disease is the most common and effective.By retrospective literature review,we summarize the BMSCs transplantation application in Orthopaedic disease treatment.As an ideal cell source,BMSCs was first applied in bone tissue engineering,mainly used in the treatment of long bone defect and bone nonunion;Recently,the research trends of clinical BMSCs application turned to treat degenerative diseases and genetic disorders because of its great potential,including osteoarthrits,femoral head necrosis,disc degeneration,spinal cord injury,knee varus,osteogenesis hypoplasia,hypophosphatasia and so on.The safety and efficacy of BMSCs treatment are the key issues in clinical cell therapy.There is no side effects and complications after BMSCs treatment,prove its clinical application is safe.But due to type and degree of disease and individual differences,therapeutic methods including injection method,effective concentrations,treatment window selection,cycle and therapeatic effects have a bigger difference.There is still no uniform of recognized operation standards for the treatment of the same type of disease.So BMSCs transplantation requires effective control during whole medical process and its application in orthopedic diseases is still lack of large-scale multicenter clinical study.Therefore,this review focuses on induction,summary and analysis in the research status of BMSCs in bone disease treatment,and provide new ideas and methods for BMSCs transplantation in orthopaedic disease prevention and treatment.

Colorectal cancer is a common malignant tumor of digestive tract, and the risk of inflammatory bowel disease developing into colorectal cancer is significantly increased. Immune signaling pathways NF-κB, IL-6/STAT3, COX-2/PGE2, IL-23/Th17 and TLRs have been confirmed to promote the transformation from colitis to colorectal cancer. NOD2 and intestinal microbes also participate in the regulation of inflammation mediated carcinogenesis. Chronic inflammation is a potential risk for colorectal cancer, and anti-inflammatory drugs may play a chemical preventive role. In this review, we summarize the signaling pathways involved in inflammation-associated colon carcinogenesis and evaluate the chemoprophylaxis of colon cancer.

OBJECTIVETo evaluate the clinical effects of arthroscopic reconstruction of anterior cruciate ligament (ACL) and minimally invasive reconstruction of posteromedial corner (PMC).

METHODSThere were 22 cases of ACL and PMC tear were performed with reconstruction from March 2012 to February 2014. The patients were 29.4 years old on average, including 8 males and 14 females. ACL reconstruction was performed under arthroscopy and PMC reconstruction was performed minimally invasively through the ACL incision. The stability of knee was assessed by anterior drawer test,Lachman test,vulgus stress test and Slocum test. The function of knee was assessed by Lysholm score and Tegner activity rating. MRI of knee was checked 12 months after operation.

RESULTSThe stability tests of all patients were negative at 2 and 6 months after operation, and there was one positive case in anterior drawer test and another positive case in vulgus stress test at 12 months after operation. Lysholm score of all patients 12 months after operation was 96.8 +/- 6.8, which was significantly better than 32.0 +/- 11.2 before operation. Tegner activity rating of all patients at 12 months postoperatively was 6.1 +/- 0.9, which was significantly better than 0.9 +/- 0.5 before operation. It showed the grafts were very well in the MRI 12 months postoperatively.

CONCLUSIONArthroscopic ACL reconstruction and minimally invasive PMC reconstruction can restore the stability of knee.

Adult ; Anterior Cruciate Ligament ; physiopathology ; surgery ; Anterior Cruciate Ligament Injuries ; Anterior Cruciate Ligament Reconstruction ; Female ; Humans ; Knee Injuries ; physiopathology ; surgery ; Knee Joint ; physiopathology ; surgery ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; Treatment Outcome ; Young Adult

Objective To ascertain serum inflammatory markers could be modified following treatment of periodontal disease in elderly patients. Methods The probing depth (PD), clinical attachment level (AL), C-reactive protein (CRP), interleukin-6 (IL-6) were determined. And then fifty-two elderly periodontitis patients underwent a standard phase of non-surgical periodontitis treatment (consisting of oral hygiene instructions and subgingival scaling and root planning). After three and six months, PD, AL, CRP and IL-6 were determined again and compared to the baseline. Results Six months after treatment, significant reductions in PD [(5.9±1.1) mm vs. (6.8±1.0) mm, P＜0.05], AL [(1.3±0.9) mm vs.(8.4±1.1) mm, P＜0.05], CRP [(1.5±0.2) mg/L vs. (2.0±0.3) mg/L, P＜0.01] and IL-6 [(1.6±0.5) ng/L vs. (1.9±0.4) ng/L, P＜0.05] were observed. Conclusions Treatment of chronic periodontitis can decrease the levels of serum inflammatory markers in elderly patients.

BACKGROUND:Chitosan has good filming and viscosity, it contains free amido, and can coordinate and cross-link with gelatin, thus natural semi-interpentrating polymer network structure can be formed among molecules through hydrogen bonds.OBJECTIVE: To prepare sponge-like wound-healing dressing of good porosity, hydrophilia and air permeability by means of frozen chitosan-gelatin mixture induced phase separation.DESIGN: A comparative observation.SETTING: Laboratory of the College of Science, Guangdong Ocean University. MATERIALS: Chitosan was deacetylated by 97.55%, Mη=1.85×106; Gelatin (CP grade) was produced by Shanghai Chemical Dispensing Factory; Glacial acetic acid, NaOH, formaldehyde and glycerin were all CP grade. XL30-EDAX scanning electron microscope (Philips, Dutch); 3365-type universal material testing machine. METHODS: ① By means of frozen chitosan-gelatin mixture induced phase separation chitosan solution of 0.2, 0.4, 0.5, 0.6 and 0.8 (mass fraction) was mixed with gelatin solution, then a small amount of glycerin to prepare sponge-like wound-healing dressing of good porosity, hydrophilia and air permeability. then a small amount of glycerin, and stayed quietly to deaerate. The samples were plated with gold as routine methods, and then the surface and sectional structures were observed under the scanning electron microscope. The effects of different proportion of chitosan and gelatin on the performance parameters (water retention, moisture absorption, avulsion intensity, air permeability rate) of the sponge-like materials were observed. ② Chitosan-gelatin mixtures of 18, 20, 22, 25, 24, 26 and 28 g/L (mass fraction) were used to prepare sponge-like materials, and the effects of different contents on the performances of the materials were observed. ③ The effects of cross-linking agent (formaldehyde) of different dosages (0.002, 0.004, 0.006, 0.008, 0.010, 0.012 and 0.014 in volume fraction) on the avulsion intensity of the materials were observed.MAIN OUTCOME MEASURES: ① Surface and sectional structures of the sponge-like wound-healing dressing; ② Effects of different proportion of chitosan and gelatin on the performance parameters of the sponge-like materials; ③ Effects of different contents on the performances of the chitosan-gelatin sponge-like materials; ④ Effects of cross-linking agent of different dosages on the avulsion intensity of the materials.RESULTS: ① It could be clearly seen from the surface that the chitosan-gelatin sponge-like materials were porous structure, whereas seen from the section, the pores were honey-comb formation or three-dimensional lamellar structure accumulated by porous lamellars. ② When the content of chitosan was greater, the section looked like honey comb;Whereas as the content of chitosan decreased and gelatin content increased, the section tended to parallel lamellar structure, the water content and water retention of corresponding samples had an ascending trend, but the alvusion iintensity increased at first, and then decreased. The mass fraction of 0.5 was suitable for chitosan in the prepared solution by comprehensively analyzing the performance parameters. ③ The lower the total concentration of chitosan and gelatin, the higher the water content, the easier for the formation of bigger self-chips on the surface, the porosity of the prepared materials increased, hydrophilia and water retention ability were increased, but greater cracks formed on the material surface, and avulsion intensity was smaller. As the concentration became higher, the viscosity of the mixture became greater, the excessive viscosity was not good for mixing uniform, thus the material surface was not plain enough, and the porosity was smaller, the hydrophilia and water retention ability were relatively decreased, and the materials were harder. The total concentration should be 22-25 g/L. ④ Once the dosage of cross-linking agent was too low, very few cross-linking points generated, and the intensity was too low; Once the dosage of cross-linking agent was too high, too many cross-linking points generated, and the net space was reduced, then water content and water retention value were decreased; Whereas overdosage cross-linking agent could increase the fragility of the sponge-like materials, manifested as the decrease of avulsion intensity. When formaldehyde of 0.01 in volume fraction, the avulsion intensity was the maximal, thus the dosage of 0.01 in volume fraction was the most suitable.CONCLUSION: The main factors that affect the structures and performances of the sponge-like wound-healing dressing are the proportion of chitosan and gelatin in the mixture, total concentration of the prepared solution, amount of powder and dosage of cross-linkage agent, etc. The best matching iss chitosan of 0.05 (volume fraction)/gelatin of 0.05 (volume fraction), total mass concentration of 22-25 g/L, amount of chitosan-gelatin powder mixture is 1∶1, and the dosage of cross-linking agent is 0.01 (volume fraction).

Objective To analyze the data of concentric (c) and eccentric (e) peak torque of hamstring (H) and quadricep (Q) in differ-ent gender and angle after 4-week concentric and eccentric isokinetic exercise training on knee, in order to provide suggestions for the knee extensor and flexor in rehabilitation exercise prescription. Methods 28 healthy college students from May to June 2014 in our college partic-ipated in maximum concentric (n=14) or eccentric (n=14) resistance training of the right knee extensors and flexors 3 times per week for 4 weeks. The concentric strength was measured with BIODEX isokinetic dynamometer assessment system 4 at 30 °/s, 60 °/s, 90 °/s, and ec-centric strength was measured at 60 °/s, 120 °/s, 180 °/s. PT, H/Q (He/Qc, Hc/Qc) ratio and H/H (He/Hc) or Q/Q(Qe/Qc) ratio were ana-lyzed. Results Concentric isokinetic training could improve the Hc and He at 60 °/s and 90 °/s (P<0.05), and the Qe and Qc increased at 30 °/s, 60 °/s, 90 °/s respectively (P<0.01). There was no significant improvement after eccentric training (P>0.05). After concentric isokinet-ic training, the He/Qc ratio decreased at 90 °/s (P<0.05), the Hc/Qc ratio decreased at 30 °/s (P<0.05). However, there was no difference in He/Qc and Hc/Qc after eccentric contraction (P>0.05). The Qc/Qe ratio increased at 60 °/s and 90 °/s (P<0.05), and the Hc/He ratio de-creased at 90 °/s (P<0.05) after concentric training. There was no difference in Hc/He and Qc/Qe after eccentric contraction (P>0.05). There were significant differences in Hc, He, Qc, Qe and He/Qc ratio between different genders (P<0.05). Conclusion Concentric training and ec-centric training have different influences on the muscle strength after 4 weeks training. Eccentric training only can reduce the knee stability. Hc/He ratio and Qc/Qe ratio can be used to evaluate the knee muscle function. Gender should be considered into training.

Objective To study the cytotoxicity of the membrane material of heart assist pump. Methods The membrane materials tested incladed polyurethane (group A) and medical polychloroethylene (group B),and a blank control group with none of the material. L-929 cells (the mouse fibroblasts) were cultured on either material in groups A and B,and 6 cell cultures were without any material. After 24,48 and 72 hours,the growth of cell in groups A,B and the control was observed,and the number was counted. Educts of two materials used in groups A and B was respectively added to culture medium,then the OD was measured every 24h and proliferation rate was determined by MTT test. Results L-929 cells grew very well in groups A and B with less death. The cell counts showed no difference between 2 groups at each time. The OD of group A was always higher than that of group B after 24,48 and 72h ( P

Objective To explore the mechanism of therapeutic effect of Yichantang in the treatment of Parkinson′s disease (PD). Methods A rat model of PD was replicated. The experimental animals were divided into a normal control group,a normal saline control group and a Yichantang group. Changes in the rats' behavior pattern was obrerved. Using the technique of intracerebral dialysis,the content of catecholamine like substances in the nigral extracellular fluid(NECF)was measured by means of high performance liquid chromatography(HPLC). Changes in the affinity and quantity of M and DA receptors were determined too. Results Yichantang markedly improved the rats' rotation behavior,and enhanced the Bmax and KD of DA and M receptors in the brain tissues on the side of lesion. The levels of DOPAC,HVA,DA and 5-HT in the NECF of the side of lesion in the Yichantang group were significantly higher than that of the normal saline group ( P

OBJECTIVE: To explore a drug supply system to meet radiation accident.METHODS: According to the characteristics of drug utilization for radiation disease,a retrospective analysis was conducted on the drug demand and supply in the course of treating two patients with severe radiation disease.RESULTS: The characteristics of drug supply to meet demand of remedy of acute radiation sickness manifested as a great variety and wide scope of drugs involved and purchase without scheme because of uncertainties of dosages and course of treatment,and the time is urgent,and the drug supply is more difficult.Great importance should be attached to the reserving of drugs,information,capability,and pre-draft in building and operating the drug supply system to meet radiation accident.CONCLUSION: To build a drug supply system to meet radiation accident,reasonable organization and utilization of drugs resources is quite necessary.