Objective To analyze the characteristics of of organochlorine pesticides(OCPs) residues in the soil of the suburbs of Guangzhou.Methods In Baiyun,Conghua,Zengcheng,Panyu,Nansha,surface soil(0-20 cm) samples of vegetable fields,orchard and paddy soil were collected,soil profile(20-40cm,40-60cm) of Baiyun and Panyu were also collected,in Aug,2008.Gas chromatography-electron capture detector method(GC-ECD)was used to determine 17 kinds of organochlorine pesticides.Results The detection rate of 17 kinds of organochlorine pesticides was 90.59% in topsoil,the residue level was 4.19-39.89 ng/g,and the detection rate in profiles soil was 76.70 %,the residue level was 2.35-91.26 ng/g.OCPs residues were mainly HCHs and DDTs.Conclusion Detection rate of organochlorine pesticides is high in soil in the investigated soil and in the 20-40 cm profiles of Baiyun and Panyu,the level of OCPs exceeds the related standard limit,which may have adverse effects on soil environment.

Objective To investigate the effect of acupuncture combined with minimally invasive hematoma aspiration on a rabbit model of brain injury in the acute stage of intracerebral hemorrhage (ICH). Methods A total of 65 healthy New Zealand white rabbits were randomly divided into a sham operation (SO) group, an ICH group,a hematoma aspiration (HA) group, and an acupuncture and hematoma aspiration (AHA) group. Models of ICH were established in the latter three groups. The HA group was treated with minimally invasive hematoma aspiration and the AHA group was treated with both acupuncture and minimally invasive hematoma aspiration. At 6 hours and 1, 3 and 7 days after the ICH models were established, brain water content (BWC) was measured, and the expression of matrix metalloproteinase-9 ( MMP-9 ) in the rabbits' brains was detected by immunohistochemistry. MMP-9activity was detected by gelatin zymography. Results The BWCs of the ICH group, HA group and AHA group rabbits were significantly higher than those of the SO group. The BWCs of the HA group and AHA group animals descended significantly more than those in the ICH group as time went on, especially on the 3rd day in the AHA group. Immunohistochemistry and gelatin zymography showed that the expression and activity of MMP-9 in these test groups decreased with time, especially on the 3rd day in the AHA group. Conclusions Acupuncture combined with hematoma aspiration can reduce injury in the acute stage of ICH, and inhibition of the expression of MMP-9 may be the mechanism.

Adult ; Atrioventricular Block ; complications ; Cardiomyopathies ; complications ; diagnosis ; Humans ; Male ; Sarcoidosis ; complications ; diagnosis

Abscess ; Cysts ; Female ; Humans ; Maxillary Sinus ; Tooth Diseases ; Young Adult

ADP-ribosyl Cyclase 1 ; immunology ; Biopsy ; Bone Marrow ; immunology ; pathology ; Epoxy Resins ; Humans ; Immunohistochemistry ; Ki-67 Antigen ; immunology ; Plastic Embedding ; Staining and Labeling ; methods

Object To investigate the features of health related quality of life ( HRQOL) among elderly hypertensive patients with different body mass index (BMI) so s to provide evidence for the health promotion of hypertensive. Methods A cross-sectional survey of health status data from a population of 1281 elderly hypertensive patients from Beijing and 8 provinces of China ( Jiangsu, Anhui, Gansu, Qinghai, Fujian, Jilin, Jiangxi, and Henan) was made in the study. Analysis of variance was applied to compare the differences in HRQOL of elderly hypertensive patients in different BMI categories. Results For the elderly hypertensive patients with low body mass index, the scores of 8 dimensions and scores in physical component summary (PCS) and mental component summary( MCS) of SF-36 were the lowest;except the role-emotional(RE) dimension,the scores of other 7 dimensions,PCS and MCS were significantly different(PF,RP,BP,GH,VT,MH, P<0.01; SF,PCS,MCS, P<0.01). Comparing the scores between any two groups in PCS, the scores of patients with low body mass index were significantly lower than normal weight group (62.30 ± 22. 12 vs72.40 ±20.86, P<0.05) .overweight group (62.30 ± 22.12 vs 74.97 ± 19.20, P<0.05 ) and obese group (62.30 ± 22.12 vs 74.57 ± 19. 22, P < 0.05 ). Comparing the scores between any two groups in MCS,the scores of patients with low body mass index were significantly lower than normal weight group (68. 81 ± 20. 48 vs 74. 70 ± 20.41, P < 0. 05), overweight group (68. 81 ± 20. 48 vs 78.08 ±18.23, P<0.05) and obese group (68.81 ±20.48 vs 78. 69 ± 17.77, P<0.05); the score of normal weight group was significantly lower than the overweight group (74. 70 ±20. 41vs 78. 08 ±18.23, P<0.05). Gender Stratification showed that females with low body mass index had worse HRQOL than males. Conclusion The HRQOL of elderly hypertensive patients with low body mass index is significantly lower than normal weight patients, overweight patients and obese patients, the health promotion of elderly hypertensive patients with low body mass index should be paid more attentions, especially females with low body mass index.

As a kind of additive in feed of monogastric animals, the application of natural phytase is limited due to its disadvantages. In this paper, the strategies of phytse reform was introduced. Furthermore, the research and progress on protein engineering of feed phytase was reviewed, including phytase over-expression, phytase thermostability, catalytic efficiency and optimum pH.

Objective To analyze the interactions in lectures conducted by young teachers in medical institutions and investigate the way of improving their ability. Methods We analyzed the teaching plans and the actual performance of 31 teachers who enter the final of the 16th competition of young teacher's basic skills, 2011 and observed the lectures of another 15 randomly selected teach-ers, focusing on the interactions and the effects in the lectures. Results Among the 31 teachers, 19 (which is 61.29% of the total) teachers designed and implemented interactive teaching; 6 (which is 40.00% of the total) teachers adopted interactive teaching in daily teaching. Among the 40 young teachers included in the research , 27 ( which is 54 . 35% of the total ) teachers employ interactive teaching. The way of performing interactive teaching in all above situations is answering questions. Conclusions Interactive teaching is commonly used in lectures by young teachers in medical insti-tutions. However, the method is simple and the quality needs to be improved.

Objective:To observe the effect of Shuganlidanpaishiwan and its different extractive fractions on gallbladder motility of rabbits. Methods:Establishing 100 rabbit animal models,the rabbits were randomly divided into 10 groups:the low and high dose groups of Shuganlidanpaishiwan,methanolic extract,petroleum ether and ethylacetate,negative and positive control groups,to observe the gallbladder motility of every group of animals. Results:The contraction rate of gallbladder on 30th minute after Adm were(9.40?3.36) ,(10.00?2.00) ,(14.00?2.00) on high dose of Shuganlidanpaishiwan group,methanolice extract group and the low dose of petroleum ether group respectively,which were significantly higher than that of control group. Conclusion:Shuganlidanpaishiwan,methanolice extract and petroleum ether extract could improve the gallbladder contractility.

To programming one Child's Behavior Problems Computer Screening System (CBPCSS), a series of software for analyzing child behavior individual and group sample. According to the world-famous American ACHENBACH child's behavior checklist, to ensure the screening quality and compatibility of cultures, we revised and standardized the norms of different ages in primary schools and nursery schools in various cities based on the principle of cluster stratified sampling. Then we designed CBPCSS carefully. The system can reliably and rapidly screen an individual child behavior and output the behavior factor curve (appearing in front of the profile). With CBPCSS we can observe the child behavior clearly. It takes twenty times shorter than that of manual screening. On the other hand, CBPCSS has a function of group analysis. The clinical practice proved that CBPCSS could substitute for manual screening completely. It is a powerful tool for social, scientific and pediatric medical workers.