China ; Humans ; Occupational Health Services ; manpower

Atrial Fibrillation ; therapy ; Cardiac Tamponade ; etiology ; surgery ; Catheter Ablation ; adverse effects ; Emergency Treatment ; Humans ; Male ; Middle Aged

Moyamoya disease (MMD) is a chronic progressive cerebrovascular disease with its reason remaining unclear; the disease has different morbidities among different races, with East Asia countries including China having higher incidence. The pathogenesis of MMD is still unclear and the clinical characteristics lack specificity, making it difficult for early diagnosis. Researches have shown that revascularization surgery can slow down the ischemic process, but no sufficient evidence indicates that revascularization surgery can be used for hemorrhagic MMD. Imaging approachs, including morphological and functional imaging, are the main diagnosis, evaluation and follow-up method for cerebrovascular diseases. This review aimed to summarize the application and research on multiple imaging methods for MMD.

The changes in intracellular Ca and metabolism of lipid in human monocyte-macrophages as interacted with glycosylated LDL (glc-LDL) were studied and compared with normal LDL group. The intracellular Ca in glc-LDL group was higher than in normal LDL group (P

Objective To evaluate the effect of multiplex polymerase chain reaction(Multiple-PCR) in identification of Brucella strains.Methods Six standard Brucella strains (Brucella abortus,Brucella melitensis,Brucella suis,Brucella canis,Brucella ovis,Brucella neotomae) were used as positive controls and Escherichia coli O∶157 and Yersinia enterocolitica O∶9 were used as negative controls.A total of 29 Brucella strains were tested.Brucella strains were amplified by BCSP31-PCR and the species of Brucella with positive results were identified with Multiple-PCR method.Results The results of all 29 amplified Brucella strains were positive with BCSP31-PCR.The identified results of all Brucella strains were positive with Multiple-PCR,including 20 strains of Brucella melitensis,5 isolates of Brucella suis,3 strains of Brucella abortus and 1 strain of Brucella canis.Conclusion Multiple-PCR method is a rapid,specific,simple and low risk method for identification of Brucella species.

Objective To investigate the effect of As2 O3 in combination with cinobufacini on proliferation and apoptosis of the K562 cells and provide theoretical basis for clinical application.Methods Cell proliferation was assayed by analyzing the growth and viability of the cells.Apoptosis was assayed by performing cell morphology,Annexin-V/PI staining,DNA-PI staining,and DNA gel electrophoresis.Results After exposure to As2O3 and cinobufacini,the growth of K562 cells was inhibited and the viability of K562 cells was decreased. After treated with 1.0μmol/L As2O3,0.125μg/ml cinobufacini,0.25μg/ml cinobufacini,1.0μmol/L As2O3 + 0.125 μg/ml cinobufacini,1.0μmol/L As2O3 + 0.25μg/ml cinobufacini for 24 and 48 hours,the proliferation inhibition rate were(24 ± 1.3)%,(21 ± 1.5)%,(38 ± 3.1)%,(57 ±2.7)%,(66 ±3.3)% and(49 ±2.9)%,(48 ±2.7)%,(61 ±2.1)%,(77 ±3.8)%,(82 ±4.2)%,the apoptosis rate of K562 cells were(4.8 ± 0.5)%,(5.6 ± 0.7)%,(9.8 ± 0.6)%,(11.9 ± 1.2)%,(15.2±1.5)% and(11.0 ±0.9)%,(12.9 ±1.1)%,(18.4 ±1.5)%,(21.0 ±2.0)%,(28.0 ±1.9)%.The percentage of apoptotic cells was a time- and dose-dependent manner.Typical DNA ladder was shown by DNA gel electrophoresis.Conclusions As2O3 combined with cinobufacini inhibited the proliferation of K562 cells and induced apoptosis of the K562 cells,the combination of the two drugs had better effect.

AIM: To investigate the efficacy and safety of low dose mitomycin C (MMC) to prevent haze in trans photorefractive keratectomy (TransPRK) with moderate and high myopia, and to observe the changes of corneal density.METHODS: Sixty-one patients underwent TransPRK with moderate and high myopia.Eyes were divided into research group (0.1g/L MMC for 40s) and control group(0.2g/L MMC for 40s) randomly.There were 21 patients in research group and 40 patients in control group.Cornea epithelial healing time, pain score, visual acuity, manifest refraction, haze and cornea density were analyzed.RESULTS: The epithelial healing time (0.1g/L group: 3.86±1.11d, 0.2g/L group: 4.23±1.27d) and pain score (0.1g/L group: 2.01±0.58, 0.2g/L group: 1.79±0.7) were no significant difference between two groups(P=0.667, P=0.582).It was similar in spherical equivalent at 1mo and 3mo post-operation(0.1g/L group: 0.28±0.25, 0.05±0.23D;0.2g/L group:-0.13±0.17, 0.07±0.22D;P=0.178, P=0.490).The BCVA of control group decreased at 1mo and improved to the same level as pre-operation at 3mo(F=15.847, P<0.001);0.1g/L group showed the same trend, but the changes were no significant difference(F=3.038, P=0.093).There were also no significant difference in Haze between two groups post-operation(z=-0.709, P=0.479;z=-0.478, P=0.633).The change of cornea density was matched with the BCVA (0.1g/L group F=27.399, P=0.001;0.2g/L group F=8.313, P=0.001)and it was similar between two groups.CONCLUSION: The using of low dose MMC to prevent haze in TransPRK with moderate and high myopia is safe and effective.It is therapeutic equivalence to regular dose (0.2g/L).Besides the slit lamp, we can use the corneal density to measure the corneal transparency.

Objective To compare the diagnosis results of endemic skeletal fluorosis from clinical and X-rays examinations, in order to provide the foundation for revising clinical diagnostic standard of endemic skeletal fluorosis. Methods The 675 inhabitants aged 16 to 60 years old were retrospectively chosen as subjects in 15 villages drinking un-improved water, where they lived for 10 years or more. Drinking water fluoride were rated as 0.5,1.0, 1.5,2.0,2.2,2.4,3.0,3.5,4.0,6.0,7.0 mg/L levels in Qianan and Nongan County of Jilin Province. The clinical and X-rays results of endemic skeletal fluorosis were analyzed and compared at different drinking water fluoride levels. Results The clinically detectable rates of endemic skeletal fluorosis(21.43%,22.45% ,21.28%, 19.05%, 38.89%) were higher than that of X-rays(0,2.04%,0,4.76%, 12.96%, X2=7.96,9.49,11.19,4.08,9.45, P<0.05) when fluoride content of drinking water was 2.0,2.2,2.4,3.0,4.0 mg/L. X-rays detective rates were 0 at water fluorides levels of 2.0,2.4 mg/L and still low at water fluoride levels of 3.0,4.0 mg,/L. The difference of detective rates of endemic skeletal fluorosis between the clinical (1.00%,4.44%, 7.23%, 18.00%, 54.39%, 49.18%) and X-rays (0,2.22%, 3.61%, 8.00%, 36.84%, 52.46%) were not statistically significant at water fluorides levels of 0.5,1.0,1.5,3.5,6.0,7.0 mg/L(X2=1.00,0.17,0.47,2.21,3.54,0.13, P>0.05). Conclusions The detectable rates of skeletal fluorosis increase with the increased concentration of water fluoride, which is more reliable for clinical examination than for X-rays method.

Objective To understand the morbidity of human brucellosis in Wulanchabu City of Inner Mongolia in order to provide a basis for development of prevention and control measures.Methods According to the requirements in Baseline Survey Programme of Human Brucellosis in Inner Mongolia Autonomous Regionbetween November and December in 2010,stratified cluster sampling method was used to selected three townships according to the conditions of brucellosis(mild,moderate and serious) in 11 flags(cities,counties,districts) of the city.Three villages were extracted from each township.There were at least 200 persons aged 10 and older were investigated in every township.At least 600 people were investigated in every flag(city,county,district).Respondents were investigated about their awareness rate of basic knowledge about brucellosis,risk factors and common sense of prevention and treatment of the disease by using health education questionnaire.Based on the principle of informed consent,we collected respondents venous blood for preliminary screening using Hu red tablets.Brucellosis was confirmed with standard tube agglutination test and positive result was confirmed if 1:100 antibody concentration was two + or more.Prevalence,false negative rate as well as different age,gender,occupational incidence was calculated based on the network reported results of brucellosis in 33 townships of Wulanchabu in 2010.Results We distributed 6998 questionnaires and 6763 questionnaires were effective.The witting rate of basic knowledge about brucellosis was 57.99％(15 687/27 052); the witting rate of risk factors about brucellosis was 44.33％ (29 978/67 630); the witting rate for prevention and control of brucellosis was 41.66％(28 176/67 630),and total witting rate was 45.49％(73 841/162 312).The morbidity of brucellosis in Wulanchabu City was 91.39/10 000 (785/85 894) in 2010.Five hundred and ninety-one were serologically positive and the infection rate was 8.48％ (591/69 972).Nine hundred and three cases of patients were diagnosed with brucellosis and the prevalence rate of brucellosis was 105.13/10 000 (903/85 894).Missing report 377 cases,and the false negative rate was 48.03％ (377/785) in 2010.Men infection rate was 71.07％(420/3755) and women infection rate was 28.93％(171/3217).The infection rate[97.63％(577/591)] of people aged 31 and older was significantly higher than that [2.37％(14/591)] of the people aged 30 and younger.Infection rate of people engaged in aquaculture was 8.61％ (582/669).The infection rate of people working in livestock processing industry was 2.91％ (2/103).The infection rate of people working in animal by-product circulation was 2.85％ (2/70).The Infection rate of people working in other industries was 4.59％(5/109).Conclusions In Wulanchabu City,the morbidity of brucellosis and missing report rate are both high.The infection rate of people engaged in aquaculture is high and man morbidity is high.The awareness rate about prevention and treatment knowledge of brucellosis is low.We should carry out health education to inhabitants in endemic areas to improve their self-protection awareness and reduce the incidence of brucellosis.

Objective:To observe the clinical efficacy of auricular point sticking at different points to relieve the pain in arteriovenous fistula puncture. Methods: A total of 42 patients with arteriovenous fistula were randomized into a Shenmen (TF4) group and an Elbow (SF3) group by the random number table method, with 21 cases in each group. After enrolled into different groups, before the dialysis, patients were given auricular point sticking with Wang Bu Liu Xing ( Semen Vaccariae) seeds at Shenmen (TF4) and Elbow (SF3), respectively. Patients were asked to press the seeds themselves for 2 min each time, four times a day, and an additional 5-15 min before the arteriovenous fistula puncture. Intensive pressing was offered during the puncture, 15-20 presses for each time, and the plasters were changed every 2-3 d. The numerical rating scale (NRS) was used to score the pain level one week before and after auricular point sticking. The NRS score was then compared and analyzed. Results: The intra-group comparison showed that the changes of NRS score in both groups were statistically significant after auricular point sticking (both P＜0.05). After the treatment, there was no significant difference in NRS score between the two groups (P＞0.05). Conclusion: Auricular point sticking at Shenmen (TF4) or Elbow (SF3) can effectively relieve the pain of arteriovenous fistula puncture, and these two points have equivalent analgesic effect.