This paper categorizes implantable medical device of collagen on Chinese market according to manufacturing technique and performance.Combining with supervision requirements from China Food and Drug Administration (CFDA), this paper discusses safety evaluation in following aspects, such as immunogenicity risk,virus and infectious pathogen risk, and product technical requirements.Finally, the paper looks into the future of collagen implants considering technology progress in biomedical engineering, tissue engineering, and genetic engineering fields.

Objective: To investigate the effects of different anaesthesia on serum catechlomine and IL-6 in surgical breast cancer patients,and evaluate the influence of anaesthesia on surgical stress.Methods: Forty breast cancer patients submitted to elective masteetomy were randomly divided into 2 groups:GEA group (general plus epidural anaesthesia,n=20),GA group (genernal anaesthesia,n=20). Blood samples were taken before operation, 30min, 120min following the incision and at the 1st and 3nd postoperative days. The concentrations of serum catechlomine and IL-6 were detected.Results: The concentrations of serum norepinephrine(NE),epinephrine(E),dopamine(DA) and catechlomine(CA) were similar in 2 groups before operation,and remarkably increased at 30min after incision and reached the peak values at 120min after incision. They were at the high level at the 1st day after operation(P

OBJECTIVE:To discuss the importance and prospects of the reforming of the Chinese medicinal decoction pieces. METHODS: The advantages and disadvantages of all kinds of decoction pieces(categorized by particle diameter) in preparation, application and management were analyzed comprehensively. RESULTS & CONCLUSION: Comminuting and extracting are two basic approaches for the current reform of the Chinese medicinal decoction pieces, and the reform of the decoction pieces is mainly aimed at nano-Chinese medicinal decoction pieces.

OBJECTIVE:To observe the therapeutic effect of Yindanxinnaotong Soft Capsules combined with three chemicals for coronary disease angina pectoris. METHODS:91 cases which were up to the diagnosis standard were randomly divided into control group(n=44) and treatment group(n=47) . Control groups were treated with the routine isosorbide 5-mononitrate sustained release tablets(10～20 mg,bid) ,bisoprolol fumarate tablets(5～10 mg,qd) ;amlodipine besylate tablets(5 mg,qd) . Treatment group were additionally treated with 2 to 4 Yindanxinnaotong Soft Capsules,tid,p.o,with treating course of 30 days. RESULTS:The total efficacy rate of angina pectoris and the electrocardiogram were 80.85% and 74.47% for treatment group while 61.36% and 56.82% for control group. There was significant difference between two groups(P

Objective To investigate the relationship between postoperative survival quality with social support and coping style of the main caregivers in the elderly patients with laryngeal carcinoma surgery.Methods A total of 60 inpatients with laryngeal carcinoma surgery and their main caregivers were investigated by the Medical University of Washington Quality of Life Scale (UW-QOL),Coping Styles Questionnaire(CSQ) and Social Support Rating Scale(SSRS).And the obtained data were statistically analyzed by adopting the statistical methods such as Pearsons correlation analysis.Results The postoperative survival quality of the elderly patients with laryngeal carcinoma surgery was generally lower.The social support was in the medium level.The main caregivers adopted more coping style of solving problem and seeking help.The patients' survival quality showed significantly positive correlation with the social support(P＜0.05),significantly positive correlation with the main caregivers' solving problems and seeking help coping style(P＜0.05),and significantly negative correlation with the main caregivers' self-accusation and withdraw and keep off coping style(P＜0.05).Conclusion Increasing the social support level and the main caregivers taking a positive the coping style to face the disease have an important significance for improving the quality of life in elderly patients with laryngeal carcinoma.

Objective To investigate the treatment of local recurrence after sphincter preserving surgery for low rectal cancer. Methods Fifty-six patients with local recurrence after sphincter preserving surgery for low rectal cancer were divided into three groups, 20 cases underwent radical resection (group A), 21 cases underwent palliative resection combined with 3 dimensional conformal radiation therapy (group B), and 15 cases only received 3 dimensional conformal radiation therapy (group C). Results All the patients were followed up from 6 months to 3 years. The 1-year,2-year and 3-year survival rates were 100.0%(20/20),80.0% (16/20),65.0% (13/20) in group A,90.5% (19/21),52.4% (11/21),33.3% (7/21) in group B and 80.0%(12/15),40.0%(6/15),20.0%(3/15) in group C respectively. Both 2-year and 3-year survival rates in group A were significantly higher than those in group B and group C (P <0.05). Conclusions The first choice of patients with local recurrence after sphincter preserving surgery for low rectal cancer is radical resection. Palliative resection combined with 3 dimensional conformal radiation therapy is the second choice.

MicroRNAs(miRNAs) are small non-coding RNAs that regulate gene expression at posttranscription. Its abnormality expression could be one of the main mechanisms on development of pancreatic neoplasm. It also offers new candidate targsts for diagnostic and therapeutic strategies of pancreatic neoplasm.

In recent years,the prognosis and survival quality of tumour patient would be improved greatly through cell immunotherapy,which becomes the priority scientific research.Immunoeytes can kill the tumour cell directly or through immunoregulation.CD4CD8 double-negative T cells is a newly found subset of T cells whose SUlface express neither CD4 nor CD8.This article mainly introduces the advancement of one subet of DNT cell,DN Tregs,in tumor.

Stiff-person syndrome(SPS) is a rare neurologic disorder with autoimmune features.It is characterized by progressive,severe muscle rigidity or stiffness most prominently affecting the spine and lower extremities.It is frequently associated with diabetes and other autoimmune diseases.The diagnosis of SPS is based on clinical grounds,however,aided by electromyography and high serum titers of antibodies against glutamic acid decarboxylase.Intravenous immunoglobulin infusions,plasmapheresis and steroids provide additional and lasting benefit.Moreover,benzodiazepines,baclofen,tiagabine and botulinum toxin A can afford symptomatic relief.

Objective Enterovirus 71(EV71) is one of the important etiologic agent for young children,which can cause various kind of diseases.EV71 can cause HFMD outbreak in a large scale and encephalmeningitis to death.This review introduced the research method and status of EV71 molecular epidemiology,examined and analyzed the evolution of EV71,summerized all genotype/subgenotype for EV71.the geographic and time distribution.