Objective To study the relationship between serum homocysteine level and acute type 2 diabetes mellitus complicated with cerebral infarction.Methods Patients were divided into three groups:acute diabetic cerebral infarction group including 87 patients,diabetes mellitus including 72 patients and control group including 67 healthy persons.The HCY,folic acid,VitB12 and serum lipid were determined.The data was analyzed and the relationship was discussed.Results The level of HCY in diabetic cerebral infarction group[(15.7 ±9.7)nmol/L]was much higher than that in the other two groups[(11.9±7.2)nmol/L and(13.5±6.1)nmol/L].Conclusion HCY maybe participate in occurrence and development of diabetes and pathological changes of blood vessels.It was an independent risk factor of acute cerebral infarction.

OBJECTIVE: To discuss the biosafety and biocompatibility of biomaterials. METHODS: A computer-based online search of CNKI, CBM and VIP as well as manual search were performed to collect articles about random cell control experiments and animal experiments of biological material biocompatibility published between 1990 and 2008. A total of 28 Chinese literatures were collected, and 7 were included mainly involving the cytotoxicity test methods and blood compatibility of the experimental medium, experimental grouping, experimental materials, methods of observation, experimental results, and experimental conclusion. In addition, biocompatibility of the biological material was analyzed to summarize the biocompatibility of the biological safety. RESULTS: Based on experiments of biosafety and biocompatibility of biomaterials, the cytotoxicity test and blood compatibility of various biomaterials, such as collagen, chitosan, magnetic nanoparticle, metal vascular stent, sulphurated siliastic medical grade silicon rubber, polyurethane, ceramic coatings by micro-arc oxidation, are essential for the biological safety. The experimental results have shown that the biomaterials have good biocompatibility. CONCLUSION: A variety of biological materials present good biocompatibility, including collagen, chitosan, magnetic nanoparticle, metal vascular stent, sulphurated siliastic medical grade silicon rubber, polyurethane, ceramic coatings by micro-arc oxidation, based on the evaluation criteria.

Objective To compare the effect of percutaneous balloon compression (PBC) versus percutaneous radiofrequency thermocoagulation treatment (PRFT) on idiopathic trigeminal neuralgia in elderly patients. Methods The 87 patients with idiopathic trigeminal neuralgia were enrolled, 42 patients were treated by PBC (PBC group), and the other 45 patients were treated by PRFT (PRFT group). The effects of two therapies were evaluated after treatment. Results The early response rate (92.9% vs. 95.6%) and cure rate (88.1% vs. 88.9%) of PBC group versus PRFT group had no significant differences (both P＞0.05). The inhibitory response rate of trigeminal nerve was significantly greater in PBC group than in PRFT group after treatment (69.0% vs. 35.6%, P＜0.05), and 1 patient had cardiac arrest in PBC group. The two groups had different degrees of facial numbness and sensory dysfunction. The 39 patients treated by PBC had numbness in three divisions of trigeminal nerve, while 43 patients treated by PRFT had the high selection and showed the main numbness in the ill division of trigeminal nerve. The chewing gravis rate was higher in PBC group than in PRFT group (71.8% vs. 20.9%, P＜0.05). There was no neuralgia recurrence in both groups during 6 monthe′ follow-up. Conclusions The effect of treating the elderly patients with idiopathic trigeminal neuralgia is similar by PBC and PRFT. The PBC therapy under general anesthesia is more convenient for patients who can not cooperate.The PRFT has much higher selectivity in trigeminal nerve damage, lower inhibition rate of the trigeminal nerve, and less influence on the masticatory muscle function.

Objective To investigate the serum procalcitonin (PCT),interleukin-6 (IL-6 ),hypersensitive C-reactive protein (hs-CRP)and white blood cells (WBC)joint detection in the value of early clinical diagnosis of neonatal sepsis.Methods Choose 84 cases with sepsis and 140 cases of mormal newborn in children between 2013.6.1~2013.8.31.Used the electro-chemical luminescence method and scattering turbidimetric method to detect levels of serum PCT,IL-6 and hs-CRP respec-tively,at the same time test whole blood white cells with XE-2100 instrument.Results There were significant difference be-tween serum levels of PCT,hs-CRP and IL-6 of the patients with sepsis and normal newborns (t=6.37~10.58,P<0.01) and no statistically significant difference for WBC (t=3.15,P>3.15).But joint detection of PCT,IL-6 and hs-CRP for neo-natal sepsis,the sensitivity was 98.81%,specificity was 90.24%,higher than any of them a detection sensitivity and special-ity degree.PCT in detection of neonatal sepsis,when 0.5 ng/ml≤PCT≤2 ng/ml,it was priority to with gram-positive bac-terium infection,and when PCT>2 ng/ml,was priority to with gram-negative bacteria infection,compared G+ bacteria infec-tion and G- bacteria infection,the difference was statistically significant (χ2=4.646.37~35.05,P<0.05).Conclusion PCT,hs-CRP and IL-6 detection has high sensitivity,strong specificity,they can provide evidence for early diagnosis and treatment of neonatal sepsis.

Objective:To analyze the genetic sequence characteristics of amomum viosum and establish a rapid identification meth-od for amomum viosum by fluorescent quantitative PCR based on DNA analysis. Methods:Amomum viosum and the other samples be-longing to the same genera were collected and identified by experts in the domain. DNA was isolated using commercial kits. The prim-ers and probe were designed according to the conserved region of ITS in amomum viosum. The reaction conditions were optimized to es-tablish the fluorescent quantitative PCR method for the rapid detection of amomum viosum. Results:The fluorescent quantitative PCR method for the rapid detection of amomum viosum was set up. The method could identify amomum viosum successfully, while those samples in the same genera were without amplification curves. Conclusion: Amomum viosum can be identified rapidly by fluorescent quantitative PCR besides the traditional identification by experts.

Sixty diabetic patients and twenty normal controls were studied. The results showed that: 1) Counter-immuno-electrophoresis is a sensitive and simple test suitable for the detection and monitoring of diabetic microproteinuria; 2) The proteinuria in diabetic nephropathy is glomerular in origin which is supported by the finding of a marked increase in urinary albumin excretion and a normal level of urinary ?2-microglobulin; 3) The serum ?2-microglobulin appears to be a more sensitive index than serum creatinine and creatinine clearance rate for the detection of impairment of renal function in diabetic patients; 4) Diabetic nephropathy is related to glycemic control and duration of diabetes mellitus.

Objective:To discuss the regulation requirements of software based on the analysis of software-related recalls of medical devices. Methods:The data of software-related recalls of medical devices in America were collected and processed, and the type, situation, cause and trend of software-related recalls were analyzed, then the suggestions on the regulation requirements of software were proposed. Results:During the four periods from 1983 to 2011, the percentage of software-related recalls vs medical device recalls in America increased from 6%to 19%, and the year-on-year growth rate of software-related recalls rose by 47%to 164%, significantly higher than medical device recalls in the same period (from 13%to 54%). Especially, the problem of software-related recalls in radiology medical devices was the most serious. Conclusion: The regulatory situation of software is more complicated and severe, so the regulation requirements of software, including software validation, adverse event monitoring and usability design, need to be further strengthened according to the particularity of software.

[Objective]To develop a method using HPLC for determination content of saikosaponin a and saikosaponin d of Radix Bupleuri from different areas.[Method]Column:YMC-Pack ODS-A C18(250?46 mm,5?m),mobile phase:acetonitrile-water(43∶57),detected wavelength:203nm.[Results]The regression eguations of saikosaponin a and saikosaponin d were Ya =1.223?106 X - 2.249 8?105(r = 0.999 9),Yd = 2.093?106 X - 4.786 2?105 (r = 0.999 8).The average recovery rates of saikosaponin a and saikosaponin d were 98.13 %,97.99 %.[Conclusion]The HPLC method is simply and suitable to control quantitative of radix bupleurum.

The International Society on Thrombosis and Haemostasis has proposed to hold World Thrombosis Day on October 13 annually from 2014 to improve awareness and education of thrombosis. Thrombotic diseases are multidisciplinary disorders involving multiple systems.Thus, multidisciplinary team treatment for thrombotic diseases should be developed in China.A comprehensive study of genetic factors for thrombotic diseases is expected to achieve early diagnosis and risk prediction for this type of disease, and thus precision diagnosis and individualized treatment can be achieved.

Objective To investigate the effect of down-regulation of transient receptor potential melastatin 8 (TRPM8) on the proliferation and apoptosis of human bladder transitional cell carcinoma cells T24.Methods shRNA targeting TRPM8 was designed and synthesized, and then transfected into the T24 cells via lipofectamine 2000 mediation.The proliferation and apoptosis of T24 cells were detected with methyl thiazolyl tetrazolium (MTT) assay and flow cytometry.Expression of extracellular regulated kinase (ERK), cyclin D1, and Bcl-2 were detected with Western blot.Results TRPM8-targeted shRNA downregulated TRPM8 expression of T24 cells.MTT assay showed a significant acceleration of the proliferation of shRNA interference group compared to blank and control groups (P ＜0.01).Compared to control group, cell apoptosis rate was significantly higher in shRNA interference group (P ＜ 0.01).In addition, the expressions of PI3K, cyclin D1, and Bcl-2 were decreased in shRNA interference group.Conclusions Down-regulation of TRPM8 can induce inhibition of proliferation and promotion of cell apoptosis in human bladder transitional cell carcinoma cells T24 via regulating PI3K.It might be regarded as a novel target for clinical diagnosis and gene therapy of bladder cancer.