ObjectiveTo analyze the prevalence and epidemic trend of human brucellosis between 2007 -2010 in Qian'an county,and to provide a basis for future prevention and control measures. Methods Epidemiological data of brucellosis between 2007 - 2010 were obtained from the national disease surveillance report on management information system, population data were from the national disease surveillance information management system for basic information reporting system, and descriptive epidemiological methods was used for statistical analysis. Results A total of 86 cases were infected with brucellosis in Qian'an county from 2007 to 2010, with 68 cases of male and 18 cases of female, and male to female ratio was 3.78 : 1. Patients were mainly in the age of 20 - 55, with 40 - ＜ 45 year-old group the highest. All patients were local residents. Most professional were livestock acquisition, processing and aquaculture personnel. The majority of patients lived in Jianchang town,with 51 cases, accounting for 59.30％. Thirteen patients were reported in 2007, incidence was 0.0201‰(13/ 647 983). Thirty-nine patients were reported in 2010, and incidence was 0.0563‰(39/657 380). There was a fluctuations increase from 2007 to 2010. In 2007 brucellosis occurred in only two townships(towns), which spread to eight townships (towns) and urban areas in 2010. ConclusionsThe epidemic of human brucellosis in Qian'an is in a spreading trend. We recommend the government to strengthen the quarantine of livestock, and the infected livestock should be timely treated. Strengthen the prevention and control in Jianchangying. At the same time increase the brucellosis propaganda, and enhance self-protection awareness of the occupational groups.

OBJECTIVE: To explore the relationship between the expression of EIIIA+ fibronectin in incised wound of rat's skin and injury time. METHODS: The wounding model was established by cutting the dorsal skin of 48 adult SD rats. The rats were sacrificed at the pre-set injury time as immediately, 0.5 h, 1 h, 2 h, 3 h, 4 h, 6 h, and 8 h. The skin samples were taken at the margin of wound. The expression of the EIIIA? fibronectin was detected by immunohistochemistry and Western blotting and the relationship be- tween its expression and injury time was observed. Results The expression of EIIIA+ fibronectin was not observed immediately. The basal cell of skin began to show positive expression 0.5 h after injury. With the extension of injury time, positive staining became stronger. The value of relative optical density was gradually increased with prolonged injury time by the Western blotting analysis. CONCLUSION The expression of EIIIA+ fibronectin could be used for estimation of injury time in the early stage of skin injury.
Animals ; Fibronectins/metabolism* ; Immunohistochemistry ; Proteins/metabolism* ; Rats ; Rats, Sprague-Dawley ; Skin/metabolism* ; Staining and Labeling ; Time Factors

Objective To analyze the epidemiologic characteristics of epidemic hemorrhagic fever syndrome (EHF) from 2004 to 2010 and provide scientific basis for formulating control measures.Methods Epidemiological data of EHF between 2004 to 2010 were obtained from the“National Disease Surveillance Report on Management Information System”,and the population data were from the“National Disease Surveillance Information Management System for Basic Information Report System”.Descriptive epidemiological methods was used for statistical analysis.ResultsA total of 173 cases were reported in Qian'an from 2004 to 2010.From 2004 to 2010,the cases were 86,67,12,1,0,1,and 7 cases,respectively,and the rate were 13.12/10 million ( 86/640 249 ),10.42/10 million (67/642 688 ),1.86/10 million ( 12/645 124),0.15/10 million (1/647 983 ),0(0/650 720),0.15/10 million( 1/653 839),and 0.11/10 million(7/657 380),respectively.The overall rate was 3.86/10 million(25/648 283) of population.From 2004 to 2008 the incidence reported declined rapidly,then increased slowly after 2009.The cases were found intensively in winter(November - next January) and spring season (february - may).The incidence in the age group of 10 - 45 was higher than that of other age groups,and the total number of cases was 82.08％(142/173).The incidence in males( 114 cases) was higher than that of females(59 cases).Occupational distribution mainly to peasants and students,which accounted for 87.86％ (152/173).Conclusions Epidemic in the city declines rapidly follows by a slow recovery,suggesting that in the future surveillance,mice-killing and protection of vulnerable population should be strengthened.

Alternative Splicing ; Fibronectins/genetics* ; Forensic Medicine ; Humans ; Protein Conformation ; Protein Isoforms/genetics* ; Wound Healing/physiology*

Animals ; Female ; Guinea Pigs ; Kidney ; microbiology ; pathology ; Leptospira interrogans ; isolation & purification ; pathogenicity ; Leptospirosis ; microbiology ; pathology ; Liver ; microbiology ; pathology ; Lung ; microbiology ; pathology ; Male ; Time Factors

Objective To retrospectively study revisions for infected total hip replacements in 30 cases and discuss the bacteriological characters of the infected total hip replacements,difficulties and strategies in the revision.Methods Thirty revisions of infected total hip replacements were reviewed retrospectively.There were 12 males and 18 females,with mean age of 62.5 years(31-86 years)at revi- sion surgery.Infection was presented one month to four years(mean seven months)after THA operation. The diseases for initial operation included femoral neck fractures in 12 cases,femoral head necrosis in 11,hip osteoarthritis in five and rheumatoid arthritis in two.Twelve eases were treated by one-stage revi- sion and 18 by two-stage revision.Results Before the revision operation,the hip infection were diag- nosed by bacterial culture in 18 cases including five with Staphylococcus epidermidis,four with Staphylo- coccus aureus and nine with other bacteria.Bacteria growth appeared on the specimens from 23 hip joints during the revision surgery but not on the specimens from seven hip joints.Of 12 one-stage revisions,10 cases were followed for mean 16 months,which showed infection recurrence in two eases.Of 18 two-stage revisions,13 cases were followed for mean 20 months,which showed one case with infection recurrence. The mean Harris hip score was improved from preoperative 44 to 84 at follow-up.Conclusions 1) The main bacteria in the infected hip are antibiotic resistant Staphylococcus.2)Because the revision op- eration is difficult,careful preparation before revision is important for success.The fresh surgeon should not attempt.3)The revision strategies should vary according to specific status of the cases.The infection recurrence rate is lower when using a two-stage revision strategy.4)Application of antibiotic bone cement can help improve treatment effect and facilitate functional recovery of the joints.5)The scientific rehabil- itation after operation is very important to functional recovery.

Objective To report the experience of the application of microsurgery in joint replace- ment.Methods There were 22 cases,10 cases with segmental acetabular defects treated with the pedicle sartorius muscle iliac bone grafting,5 cases with vascular repair following major vascular injury of extremity during operation,6 cases with neural repair following neural injury during operation,1 case with serious injury reconstruction by elbow joint replacement and free flap.Results The operations succeeded in 22 cases without any postoperative infection.The mean follow-up was 40.1 months (3-72 months) in 22 cases,in which the joint function improved and the operative result was satisfactory with no joint pain.Conclusion Microsurgical technique can reconstruct bone and tissue defect effectively in joint replacement.

Objective To examine the association between tea drinking and the risk of lung cancer in Chinese population.Methods All relevant published articles in Chinese and English literature database were identified.Meta-analysis was conducted.Combined odds ratio (OR) and 95％ confidence interval (CI) were calculated to estimate the associations and dose-response relationship between tea drinking and the risk of lung cancer.Results Twelve studies were included.An inverse association with lung cancer was observed on tea drinkers when compared to non-tea drinkers (OR=0.66,95％CI:0.49-0.89).Conclusion Tea drinking might serve as a protective factor on lung cancer in the Chinese population.

Hepatocellular carcinoma (HCC) is a common malignant tumor worldwise. The incidence rate of HCC is high and is easy to metastasis and recurrence, which seriously affects human health. Traditional chemical drugs have some challenges such as toxicity, side effects, and multidrug resistance, thus it is urgent to find new drugs and effective targets. Here we synthesized a novel chemical, protonic bis-phenanthroline (H-BP), and the antitumor effect was investigated in the study. The results showed that H-BP could selectively inhibit the proliferation of tumor cells and cause HCC apoptosis. And also, in HCC tumor-bearing mice, H-BP could effectively prevent the growth of tumor mass, even completely eliminate the tumor at medium dose (5 mg·kg^-1) and high dose (10 mg·kg^-1), and meanwhile H-BP has no significant effect on the body weight of mice. The experimental protocol was approved by the Animal Ethics Committee of Southwest University, and the experimental operation was strictly carried out in accordance with the ethical principles of animal use and care. Mechanism studies showed that H-BP induced HCC apoptosis was related to down-regulation the expression of pleomorphic adenoma gene like-2 (PLAGL2), a oncogene transcription factor, resulting in the down-regulation of PLAGL2 downstream proteins hypoxia inducible factor and β-catenin. This study not only introduces the dimerization method to form novel compounds that will provide a new approach for drug design, but also suggests that PLAGL2 may be an effective target in tumor therapy.

OBJECTIVE: In order to supply an effective reference of early injury time estimation and explore the time limit of detection of EDA\EDB mRNA in human skin samples, the expression of alternative splicing segment of fibronectin--EDA\EDB in incised wound of human skin were studied. METHODS: Using in situ hybridization with DIG-labeled anti-sense RNA probe, the expression of FN EDA\EDB domain was detected in human skin incised wound at the early stage of injury (from 30 min to 3 h). RESULTS: The positive expression rates of FN-EDA\EDB immediately after injury and area far away from wound were same as the control group. The expression of FN-EDA\EDB in human skin incised wound showed a gradually increased tendency in early injury time (within 3 h). The positive expression cells were mainly distributed in basement cells of epidermis and the expression of EDA is much higher than EDB. It's difficult to detect EDA\EDB mRNA when the samples were deposited in air for 4 hour. CONCLUSION FN-EDA\EDB may be used as a sensitive mark for the estimation of early injury time. The in-situ hybridization technique is not applicable in the application.
Fibronectins/genetics* ; Forensic Medicine ; Humans ; In Situ Hybridization ; Protein Isoforms/genetics* ; RNA, Messenger/genetics* ; Skin/metabolism* ; Time Factors ; Wound Healing/physiology*