Perfluorooctanesulfonate(PFOS),a new kind of persistent pollutants,is one of the key research in 21 century.This paper collected PFOS data in water and human body from several countries and areas,analyzed the relationship between PFOS concentration in human body and the influencing factors,such as regional distribution,gender and age and the change of influencing factors was discussed in detail.

Objective To apply the real-time quantitative PCR assay with the TaqMan Probe to DNA analysis in Forensic science . Methods Using the TaqMan method to quantitate DNA abstracted from variety of biological samples common in Forensic science . Results The quantity of sample DNA can be obtained. Inhibiting factors in the abstracted DNA might be evaluated. And subsequent procedures of STR testing were then directed. Conclusion Real-time quantitative PCR is a necessary technique for DNA analysis in Forensic science.

The lack of organs has been an crucial limiting factor for Chinese organ transplantation,thus it is in urgent need to effectively increase the number of donor organs.This article holds that,besides through publicity and education to promote unpaid voluntary organ donation,some incentive mechanisms are also required to serve as useful complements.Therefore,organs' origin can be expanded to a certain extent,and the intense supply and demand in organ transplantation can also be eased.Unifying organ transplantation practice in China,this paper explains the necessity of organ donation incentive mechanisms from both theoretical and practical significances,reveals the main elements of the incentive mechanisms,and explores the realization means.

ObjectiveTo study the effects of intermittent subglottic secretion drainage(SSD)with an endotracheal tube on incidience of ventilator- associated pneumonia(VAP). MethodsWe searched computerized databases,including Cochrane library,Pubmed,EMbase,CBM,CNKI,Wanfang and some relevant databases from initializing to March 2012,extracting data about subglottic secretion drainage(SSD)with an endotracheal tube on incidence of VAP using RCT.The data had Meta- analysis by software RevMan5,and to those data which could not be conversed or merged,they underwent descriptive analysis. ResultsWeidentifled 5 randomized clinical trials that met the inclusion criteria with a total of 683 randomized patients.In Meta- analysis,the overall risk ratio for ventilator- associated pneumonia was decreased significantly by intermittent subglottic secretion drainage with an endotracheal tube.There was no significant difference on adverse events or on hospital or intensive care unit mortality.Databases,including ICU and hospital LOS,duration of endotracheal catheterization,bacteria concentration,which were difficult to be conversed and obtained full data,they underwent a descriptive research. ConclusionsCompared with the common endotracheal tubes,the use of endotracheal tubes with subglottic secretion drainage is effective for prevention of ventilatorassociated pneumonia.But it has no effect on adverse events or on hospital or intensive care unit mortality.So large sample RCTs with multiply- center should be carried out to assess the effect of the use of SSD.

Objective To explore the effect of ultra-early hyperbaric oxygenation (HBO) on bone calcium, biomechanical properties and bone collagen of femur in rats with complete spinal cord transaction. Methods A total of 75 Sprague-Dawley rats were randomly divided in-to sham group (n=15), model group (n=20) and HBO group (n=40). HBO group was divided into three hours group (HBO1 group, n=20) and twelve hours group (HBO2 group, n=20). All groups underwent laminectomy at T10, while the model group, HBO1 group and HBO2 group underwent complete spinal cord transection at the same level. Three hours and twelve hours after surgery, HBO1 group and HBO2 group received HBO, respectively, for three courses with ten days in a course. After treatment, the femoral biomechanical properties, bone calcium and hydroxyproline (Hyp) were determined. The morphology of bone trabecula and the bone collagen was observed with HE stain-ing and Masson triad color staining, respectively. Results After treatment, compared with the sham group, the femoral biomechanical proper-ties, the content of bone calcium and Hyp decreased in the model group (P<0.05);compared with the model group and HBO2 group, they in-creased in HBO1 group (P<0.05). The number of bone trabecula and the bone collagen decreased, and derangement and sparseness were ob-served in the model group;however, the changes were substantially mild in HBO1 group. Conclusion Ultra-early HBO could increase the content of bone calcium and Hyp of femur, improve the morphology of the femur bone collagen, and improve the femoral biomechanical properties in rats with complete spinal cord transection.

OBJECTIVETo observe the clinical effect of micro-plasma radio frequency treatment of facial post-burn hyperpigmentation.

METHODSFrom June 2012 to August 2013, a total of 25 cases with facial post-burn hyperpigmentation were treated with micro-plasma treatment for 3-5 times. The roller tip was used with setting of 60-90 watts and 3-4 passes were performed in different directions. Treatments were repeated at an interval of 8 weeks.

RESULTSAll patients tolerated the pain. After treatment, the facial hyperpigmentation improved. Complete recovery was achieved in 4 cases; significant improvement in 11 cases; moderate in 7 cases and no effect in 3 cases. No hyperpigmentation, depigmentation and scar formation was observed.

CONCLUSIONMicro-plasma radio frequency treatment is an ideal treatment for post-burn hyperpigmentation with lower side effect.

Aged ; Burns ; complications ; Cicatrix ; Facial Dermatoses ; etiology ; therapy ; Facial Injuries ; complications ; Humans ; Hyperpigmentation ; etiology ; therapy ; Pulsed Radiofrequency Treatment ; instrumentation ; methods

OBJECTIVE:To provide reference for the further standardization of biological products injection for treatment in-structions. METHODS:32 biological products injection for treatment instructions collected from Ma’anshan Center for Disease Control and Prevention and Ma’anshan Central Hospital during Jan. to Jun. in 2015. The information of marked item was summa-rized and analyzed. RESULTS & CONCLUSIONS:Among 32 biological products injection for treatment instructions, the mark rates of drug names,main ingredients,character,indications,specification,usage and dosage,package,term of validity,opera-tive norm,license number,manufacturing enterprise and other items all reached 100%. Although the mark rates of ADR,contrain-dication,precaution,drug use of pregnant women and nursing mothers,drug interactions,pharmacokinetics,drug use of the elder-ly,storage and other items were relatively high,but some items lacked the specific description of the content. The mark rates of drug use of children,drug overdose,toxicology,warnings,clinical trial were 56.25%,62.50%,59.38%,37.50% and 18.75%. Some biological products injection for treatment instructions are not revised timely and not complete in content and non-standard in writing,which can not meet the needs that clinical pharmacists and patients get enough drug safety information from instructions. Manufacturing enterprise is suggested to label the content of package inserts completely,verify and supplement related content, standardize and improve the instructions.

Objective To investigate the level of self-concept on occupation among junior nurses.Methods One hundred and thirty-nine nurses with nursing experience of 1-5 years were involved in the survey by using the Nurses' Self-Concept Questionnaire (NSCQ).Comparisons were done between the groups of nurses with undergraduate education and those with three-year training courses in terms of self-concept and its dimensions.Results The total score of junior nurses on self concept was(5.33±0.77).The score of the nurses with undergraduate education was(5.16±0.88),significantly lower than the score of(5.44±0.71)of the nurses with three-year training courses(P<0.05).Conclusion The nursing administration should attach importance to the self-concept on occupation, instructing specially the nurses with undergraduate education so as to enhance their mental health and their self-identification of nursing as an occupation.

Objective To explore the clinical-pathological characteristics, treatment and prognosis of eosinophilic gastro-enteritis in children. Methods The data of clinical manifestation, laboratory examination, endoscopy, biopsy, management and prognosis from 2 pediatric patients with eosinophilic gastroenteritis were retrospectively analyzed. Related articles were reviewed. Results The age of two patients was 13 and 14 years old. Case 1 was male and had an onset with acute pancreatitis. Case 2 was female with a history of food allergy and had an onset with unexplained ascites. Both patients presented with signiifcantly increased peripheral eosinophil count (45.9%-64.8%) and serum IgE (246-393 IU/ml). Bone marrow cytology showed increased proportion of eosinophils in both patients. Gastroscopy was performed in case 1 while gastroscopy and colonoscopy endoscopy were performed in Case 2 and the results indicated eosinophilic inifltration in duodenum. Duodenal mucosa biopsy showed eosinophilic inifltration in case 1 while gastrointestinal pathology biopsy showed multiple mucosal eosinophil inifltration in case 2. After the therapy of food avoidance, steroid and anti-allergic drugs, both patients had complete remission 1 week later. Meanwhile the peripheral eosinophil count was decreased to normal. Case 1 was followed up for 24 months, and case 2 was followed up for 2 months. Both patients showed no evidence of relapse. Conclusions The clinical manifestation and endoscopic examination of eosinophilic gastroenteritis in children are protean and lack of speciifcity. Unexplained gastrointestinal symptoms accompanied with eosinophilia may suggest the possibility of eosinophilic gastroenteritis. Eosinophilic inifltration in ascites and gastrointestinal mucosa strongly indicate the di-agnosis of eosinophilic gastroenteritis. After exclusion of other possible diseases, the deifnite diagnosis can be made.

Objective To explore the effect of the autoregressive integrated moving average model?nonlinear auto?regressive neural network(ARIMA?NARNN)model on predicting schistosomiasis infection rates of population. Methods The ARIMA model,NARNN model and ARIMA?NARNN model were established based on monthly schistosomiasis infection rates from Janu?ary 2005 to February 2015 in Jiangsu Province,China. The fitting and prediction performances of the three models were com?pared. Results Compared to the ARIMA model and NARNN model,the mean square error(MSE),mean absolute error (MAE)and mean absolute percentage error(MAPE)of the ARIMA?NARNN model were the least with the values of 0.011 1, 0.090 0 and 0.282 4,respectively. Conclusion The ARIMA?NARNN model could effectively fit and predict schistosomiasis in?fection rates of population,which might have a great application value for the prevention and control of schistosomiasis.