Objective To establish an analytical method to determine arsenic in cosmetics with graphite furnace atomic absorption spectrometry. Methods Arsenic in cosmetics was determined by graphite furnace atomic absorption spectrometry with citric acid as a matrix modifier. Results The detection limit was 0.03 ? g/ g, the related coefficient of the standard curve for the present method was 0.997-0.999, and relative standard deviation was 4.7%, rate of recovery was 92%-106%. Conclusion Graphite furnace atomic absorption spectrometry is sensitive, reliable, simple and rapid for determination of arsenic in cosmetics.

BACKGROUND:Anti-rotation intramedulary nail fixation for proximal femoral fractures replaces the femoral bearing axis, moves towards body axis relative to hip screw and dynamic ankle screw, enhances the anti-fatigue strength at the fracture site, supports the anti-varus and prevents the rotation of the proximal fracture site, and is suitable for the treatment of unstable fracture. OBJECTIVE:To comparatively observe the effects of dynamic hip screw knife system and minimaly invasive spiral blade anti-rotation intramedulary nail in the repair of unstable intertrochanteric fractures. METHODS: A total of 82 cases of unstable intertrochanteric fractures, who were treated in the Department of Orthopedics, First People’s Hospital of Shunde from January 2012 to January 2014, were selected in this study. The patients were equaly and randomly divided into two groups: dynamic hip screw knife system group and minimaly invasive spiral blade anti-rotation intramedulary nail group. Repair index, fracture healing time and the incidence of complications were compared between the two groups. RESULTS AND CONCLUSION:Healing time and repair index were significantly better in the minimaly invasive spiral blade anti-rotation intramedulary nail group than in the dynamic hip screw knife system group (P < 0.05). Complications appeared in five patients from the minimaly invasive spiral blade anti-rotation intramedulary nail group, with the incidence rate of 12%, and in ten patients from the dynamic hip screw knife system group, with the incidence rate of 24%. The incidence of complications was significantly lower in the minimaly invasive spiral blade anti-rotation intramedulary nail group than in the dynamic hip screw knife system group (P < 0.05). These data suggest that for patients with unstable intertrochanteric fracture, minimaly invasive spiral blade anti-rotation intramedulary nail can decrease the incidence of complications, elevate the safety of the repair method, and promote the functional recovery.

[Objective]To evaluate the biomechanical features of Ni-Ti shape memory alloy stemless femoral prosthesis.[Method]Using CT(computer tomography) scanning photographs of adult femur,three-dimensional model of the femur was built by CAD(computer aided design) software.Based on the the structure of femoral model,shape memory alloy stemless femoral prosthesis was designed.Three-dimensional finite element model was created for the normal femur,Ni-Ti shape memory alloy stemless femoral prosthesis,and traditional stemmed hip prosthesis.Under static loads and walking loads,the Von Mises stress distributions of each model were analyzed and compared.[Result]The stress distribution of shape memory alloy stemless femoral prosthesis was not obviously different from normal femur,stemless femoral prosthesis's proximal femoral stress was close to that of normal femoral model but significantly higher than traditional stemmed hip prosthesis.Von Mises stress of memory alloy claws was distributed evenly,and the Max was only 13.23Mpa,there was no stress concentration.[Conclusion](1) Ni-Ti shape memory alloy stemless femoral prosthesis has great biomechanical properties,may reduce the stress-shieding effect of the proximal femur.The fixed method that use memory alloy claws can make prosthesis fixed firmly to the bone and reduce stress concentration.

Objective To study the effect of pulsing magnetic field (PMF) on the osteogenesis of the distracted region in cosmetic limb lengthening, and to search for an effective therapeutic method for promoting the recovery of the cosmetic patient. Methods Thirty adult short stature volunteers for cosmetic heightening were randomly divided into PMF group and control group, 15 in each group. Magnetic stimulation was given to the PMF group on the day after operation. X-ray examination was taken on fixed interval, and lengthening index was used for bone healing evaluation. Results The height increase ranged from 5～9 cm, mean (6.6?1.2) cm, and the mean lengthening rate was 19.2 % : 5～8 cm (6.2?1.1) cm in the PMF group and 5.2～9 cm (6.8?1.6)cm in the control group ( P

0.05).But in the group EDN and CDN,Lp(a) was significantly higher as compared with the former two groups (P

OBJECTIVE To conduct the centralized management of the medical instrument in the supply room,and to assure the quality and validation of the clinical nursing and the patient safety. METHODS The cleaning and packing procedures of the instrument were standardized.The reusable instrument would be concentrated to clean,pack,and sterilize.To create a photograph management system,and use the photos to distinguish specialized instrument. RESULTS The instrument was reprocessed in the supply room instead of the clinical departments by the method of the centralized management of the instrument,which provided better instrument care and reprocessing. CONCLUSIONS The supply room conducts the centralized management of the medical instrument and enhances the quality of the instrument reprocessing.

Objective To investigate the role of HMGB 1 in epithelial-mesenchymal transition .Methods Specific siRNA of HMGB1 was designed and synthesized .Cultured typeⅡalveolar epithelial cell line-A549 cells were divided into 4 groups:1)control group, 2)model group induced by TGF-β1, 3)HMGB1 RNAi group, 4)RNAi negative con-trol group .Cellular morphology changes were observed by phase-contrast microscope .HMGB1 andα-SMA expression in A549 cells was detected by RT-PCR and Western blotting respectively .Results mRNA and protein expression of HMGB1 andα-SMA in TGF-β1 group increased significantly than that in control group (P<0.01).HMGB1,α-SMA mRNA and protein expression in siRNA-treated cells decreased significantly as compared with that in TGF -β1 group (P<0.01).Conclusions HMGB1 may be involved in the TGF-β1 induced EMT.

Medical translation is not onlya kind of transmission of medical information but also mutual communication in culture. It is absolutely necessary to train medical students for the translation skills of medical English. This paper has exemplified training on how to deal with medical terms,phrases,texts as well as culture when translating,which is of some importance for the education of medical students.

Objective To observe the efficacy of stage treatment with acupuncture plus intermediate frequency for Bell's palsy and its effect on serum NO content. Method By adopting a randomized controlled design, eighty eligible patients with Bell's palsy were randomized into a treatment group and a control group. The two groups both received acupuncture treatment in acute stage (within 1 week after the onset); in the remission stage (since 1 week after the onset), electroacupuncture apparatus was added for the control group, and intermediate frequency was given to the treatment group in addition to the intervention for the control group. The House-Brackmann (H-B) facial nerve grading system and serum NO content were observed before and after the treatment. Result The H-B facial nerve grading was improved after the intervention in both groups; the total effective rate was 95.0% in the treatment group, significantly higher than 82.5% in the control group (P<0.05); the serum content of NO was significantly improved after the treatment in both groups (P<0.05), while the increase in the treatment group was more significant than that in the control group (P<0.05). Conclusion In treating Bell's palsy, stage treatment with Acupuncture plus intermediate frequency can effectively restore facial nerve function, significantly enhance clinical efficacy and shorten treatment duration. This disease is closely related to the content of serum NO, and the benign regulation on serum NO content is possibly the mechanism of acupuncture in treating facial paralysis.

In real life,vague expression is ubiquitous in any nation and any language.Medical English,as a branch of English for Science and Technology ( EST ),is typical in accuracy of word use.However,like other kind of language,it adopts vague expression,too.Vague expression plays an important role in medical practice.In communication of medical practitioners and patients,appropriate vague expression will improve language expression and communication efficiency.In medical English,the vague words that express approximate,presuming,or uncertain meaning are usually used to replace the exact meaning words.The correspondent translation methods such as literal translation,meaning translation,specialization etc can be used according to the different context.