Objective To explore the influence of aerobic exercise on plasma lipoprotein in overweight and obese PCOS women.Methods 12 obese and overweight patients with PCOS were selected.Before and after 12 weeks of aerobic exercise,the height,weight,BMI,WHR,body fat percentage and fasting blood samples of high-density lipoprotein(HDL),low density lipoprotein(VLDL),triglyceride and cholesterol levels were measured and detected.Results After 12 weeks of aerobic exercise,the BMI[(25.43±2.17)kg/cm2 vs.(22.27±1.57)kg/cm2,t=8.52],WHR[(0.864±0.021) vs.(0.831±0.019),t=2.99],fat rate[(33.76±5.36)% vs.(30.53±5.66)%,t=5.580],and triglyceride[(1.90±0.58)mmol/L vs.(0.95±0.51)mmol/L,t=7.400]were obviously decreased,the high-density lipoprotein cholesterol[(2.07±0.39)mmol/L vs.(3.31±0.48)mmol/L,t=3.352]was obviously increased,the differences were statistically significant (all P<0.05).Conclusion Obese and overweight PCOS women can lose weight through aerobic exercise,so as to adjust lipoprotein spectrum and improve health.

Taking the modern occupation education concept as the guide,oriented by adapting to the demand of occupation post,we established a new open education mechanism of medical occupation education to promote the reform of personnel training mode,curriculum and teaching content to explore the effective way of the sustainable development of local medical occupation education.

Objective To explore the effect ot atorvastatin on the levels of serum Interleukin-6 ( IL-6),Endothelin(ET) and MCP-1 in patients with acute cerebral infarction(ACI).Methods 100 patients with ACI were randomly divided into the atorvastatin therapy group(n =50) and the conventional therapy group(n =50).At the basic of conventional therapy,the atorvastatin therapy group was treated with Atorvastatin 20mg/d.Both groups were treated for 4 weeks.The levels of serum IL-6,ET and MCP-1 were measured and the scores of neurological deficit ( NDS ) were evaluated before and after treatment.A healthy control group which approximately matched the experimental group included 30 persons.Results The levels of serum IL-6,ET and MCP-1 in both two groups after 14d treatment were significantly lower than those before treatment(t =26.38,49.10,34.51,25.77,32.23,34.68,P ＜0.05),and the levels of serum IL-6,ET and MCP-1 in atorvastatin therapy group was significantly lower than that in conventional therapy group( t =10.10,13.18,23.85,P ＜0.05 ).NDS of both groups after treatment was lower than those before treatment(t =18.38,6.98,P ＜0.05 ),and the score of atorvastatin therapy group was significantly lower than that of conventional therapy group( t =12.00,P ＜ 0.05).Conclusion Atorvastatin could significantly decrease the levels of serum IL-6,ET and MCP-1,and it could promote the neurological fuction recovery in the patients with ACI.

Chronic lung disease (CLD) of prematurity is the major cause of long-term disability of extremely low birth weight ( ELBW ) premature infants, and it is the most cost consumptive disease in neonatal intensive care unit graduates.Vitamin A plays an important role in the development of premature lung. Nevertheless, premature infants are prone to vitamin A deficiency.Oral supplementation of vitamin A does not alter the incidence of CLD in ELBW infants.Intramuscular administration of vitamin A reduced the incidence of CLD.The treatment is considered painful and this way is not routinely practiced.Vitamin A is systemically bioavailable after intratracheal administration with surfactant in an animal model of newborn respiratory distress.

Purpose To study the expression of metastasis suppressor gene (KAI1/CD82) and cell adhesion molecules(CD44v6) in human laryngeal squamous cell carcinoma ( LSCC) and its clinical significance, and to investigate their relationship. Methods EnVi-sion immunohistochemistry was used to detect the expression of KAI1/CD82 and CD44v6 protein in 64 cases of LSCC tissues and 15 ca-ses of normal laryngeal mucosa ( NLM) tissues. Results The positive rate of KAI1/CD82 in LSCC tissues ( 37. 50%) was signifi-cantly lower than that of the NLM tissues(86. 67%) (P=0. 031), and the positive rate of CD44v6 in LSCC tissues(75. 00%) was significantly higher than that of the NLM tissues(26. 67%) (P=0. 011). The expression of KAI1/CD82 was associated with clinical stages, grade of tumor differentiation, neck lymph node metastasis ( P<0. 05 ) while not related with age, sex and prognosis ( P>0. 05). And CD44v6 with grade of tumor differentiation, neck lymph node metastasis and prognosis (P<0. 05), but not with age, sex and clinical stages (P>0. 05). In addition, KAI1/CD82 expression was negatively correlated with CD44v6 expression (rs = -0. 504, P=0. 036). Conclusion KAI1/CD82 and CD44v6 are mutually inhibited in the tumorigenesis, progress, invasion and metastasis, and detection of the expression of KAI1/CD82 and CD44v6 may be helpful for judging the biological behaviors of LSCC.

Objective To study the development of research about benign paroxysmal positional vertigo (BP-PV) in China and summarize certain characteristics and hot spots ,so as to provide a basis and direction for further relevant research .Methods CNKI ,CQVIP and wanfang database were used to search relevant literatures published before 2015 .The period sequence ,journal distribution ,productive authors ,research institutions ,high -frequent key words and hot spots were analyzed through bibliometric method and visualization method .Results There were 922 literatures about BPPV research from 1981 to 2015 in China ,involving 2021 authors and 309 research institu-tions ,published in 297 kinds of journal .The literature quantity showed a gradual upward trend on the whole and journals were widely distributed ;core journal group had not yet formed .Top 13 journals (4 .38% ,13/297) had published 292 relevant literatures (31 .67% ,292/922) ,major journals were relatively concentrated ;top 17 authors had published 222 relevant literatures (24 .08% ,222/922) ,top 12 research institutions had published 137 relevant literatures (14 .86% ,137/922);high productive authors mostly came from high productive authority .Through an analysis of keywords ,it is found that BPPV researches mainly focus on pathogenesis ,diagnostic method and treat-ment .New directions have emerged in recent years ,like comparative analysis of drug treatment and manual reduc-tion ,study on the secondary BPPV of sudden deafness and Meniere'sdisease .Conclusion The publishing of 2016 re-vised edition of the guidelines for BPPV diagnosis and treatment will further deepen relevant researches ;literature quantity is expected to continue to grow ;study on the secondary BPPV of sudden deafness and Meniere's disease will be a focus .

Objective:To observe the effect of Er:YAG laser on the proliferation of human periodontal ligament fibroblasts(hP-DLFs).Methods:Human periodontal ligament fibroblasts were cultured in vitro and identified by immunohistochemistry.The cells of 5th passage were divided into 5 groups.The cells in group A without treatment were used as the controls,in group B,C,D and E were treated with Er:YAG laser of 10 Hz at 50 mJ,100 mJ,150 mJ and E-200 mJ for 1 s respectively.The proliferation of the cells was examined on day 1,3,5,7,9 by CCK-8.Results:The proliferation of hPDLFs in group B,C,D and E increased more than that in group A(P <0.05)5 d after Er:YAG laser radiation.Conclusion:Low intensity of Er:YAG laser radiation can promote the prolifera-tion of human periodontal ligament fibroblasts.

Objective To investigate the clinical effect of pedicle screw internal fixation with different surgical approach in the treatment of thoracolumbar vertebral fractures. Methods Fifty?three cases with thoracolumbar vertebral fracture without nerve injury were selected as our subjects,who were hospitalized in the Central Hospital of Chaoyang from January 2008 to December 2013. They were randomly divided into observation group(27 cases) and control group(26 cases). The patients in the observation group were treated with pedicle screw internal fixation with Wiltse paraspinal approach and the patients in the control group were treated with pedicle screw internal fixation with traditional posterior open approach. The duration of operation,intraoperative blood loss,volume of drainage and length of hospital stay of all patients were recorded and the ratio of anterior vertebral body height to normal height before and after operation was compared between the two groups. Visual analog scores( VAS) for pain severity and Cobb’ s angle of the vertebrae was compared between the two groups 1 year after operation. Results The duration of operation and length of hospital stay of patients in both groups had no statistically significant differences ( P>0. 05 ) . The intraoperative blood loss and volume of drainage in observation group were less than that in control group respectively((146. 3±25. 1) ml vs. (240. 2±28. 7) ml, (73.1±15.3) ml vs. (150.5±20.1) ml;P=0.034,0.023).The ratio of anterior vertebral body height to normal height 1 week after operation was higher than that before operation in the observation group ( ( 93. 1 ±5.1)% vs. (70.3±8.6)%,P=0.048) and in the control group((93.0±6.0)% vs. (71.8±9.8)%,P=0. 049),the difference between two group had no statistically significant(P>0. 05). The Cobb′s angle of the vertebrae 1 year after operation was less than that before operation in the observation group((10. 10±4. 00)° vs. (19. 10±7. 81)°,P=0. 045) and in the control group ((9. 97±3. 78)° vs. (18. 87±6. 90)°,P=0. 045),the difference between two group had no statistically significant(P>0. 05). The VAS for pain severity 1 year after operation was less than that before operation in the observation group(1. 1±0. 5 vs. 6. 0±0. 9,P=0. 023) and in the control group ( 1. 7 ± 0. 6 vs. 5. 9 ± 0. 7, P= 0. 038 ) , the difference between two group had statistically significant( P=0. 046) . Conclusion Pedicle screw internal fixation with Wiltse paraspinal approach in the treatment of thoracolumbar vertebral fractures without nerve injury has advantages with traditional posterior open approach in less trauma, less bleeding, rapid recovery and reduces the incidence of postoperative lumbar pain. The treatment has a good clinical effect and is worthy of clinical application.

There is an increasing demand for neonatal and juvenile animal toxicity studies during the research and development of new drugs. In this paper,we discussed general evaluation parameters of pediatric non-clinical safety with pediatric drugs,such as growth and development and food intake,and paramenters of other organs and systems, such as the central nervous system,reproductive system, behavior evaluation in combination with our own experience. In addition,the characteristics of non-clin?ical safety evaluation of new traditional Chinese medicine materia medica used for juvenile animals were analyzed. This paper is intended reference for non-clinical safety evaluation of pediatric drugs and to gain some experience related to formulation of new guidelines.

OBJECTIVE:To establish the quality method control of Jiufen spray,a percutaneous administration preparatio_n.METHODS:To determine the contents with TLCs method.The thin-layer plate was made of silica gel GF254. The spread out agent was chloroform-methanol-ammonia solution(4mol/L)(2∶6∶1). Dual wavelength scanning:strychnine and brucine:?s=254nm,?r=325nm;ephedrine:?s=500nm,?r=440nm.RESULTS:The within-day recoveries of strychnine,brucine and ephedrine were 99.048?2.388,99.532?0.958 and 99.504?0.555;the between-day recoveries were 98.796?1.058,99.58?0.476 and 99.42?0.838;the contents were(1.474?0.047)%,(1.372?0.052)%and(1.506?0.064)%(n=4) respectively.CONCLUSION:This method is stable and reliable and can be used for determination of the contents of this preparation.