Objective To understand and analyse the epidemic status of human intestinal nematode infection in Jiangsu Province, so as to provide basis for making control measures. Methods The typical thirty-nine spots in thirteen counties among the sampling spots of National Investigation on Distribution of Human Parasites in 1990 were selected and investigated according to the Methods of National Investigation Scheme on Human Principal Parasites in 2004. Results The total prevalence was 3.88%, which decreased by 46.92% compared with the investigation in 2002 (7.31%). The infection rates of hookworm, Ascaris and Trichuris were 1.14%, 1.06% and 1.73%, respectively, and the proportion of light infection was 91.75%. The rate of multiple infections was 9.40%. The proportion of hookworm infection was 78.06% in Southern Jiangsu and the proportion of Ascaris or Trichuris was 89.03% in Northern Jiangsu. The infection rate of Enterobius was 3.72% among children aged less than 12 years. Conclusions The prevalence of intestinal nematodes has decreased to lower level in Jiangsu Province. The difference of prevalence in different regions has a relationship with the disease control and social-economic, culture and health levels. The principal control work should be still put in the northern part of Jiangsu Province. The preschool children and the middle and old age peasants are high-risk population. The different control measures should be taken in accordance with the situation of different regions in the future.

Objective To investigate the effects of calcium pyruvate supplementation on body weight gain and fatty acid metabolism in rats.Method Thirty-two 150 g male SD rats were randomly divided into four groups:control group,low,middle and high dose calcium pyruvate group (0,100,500 and 1000mg/(kg.d)).Calcium pyruvate was administered intragastrically to rats-for 4 w,and then the rats were killed and blood and tissue samples were collected.Serum lipids and blood glucose were determined by biochemistry analyzer.Analysis of fatty acid composition of adipose tissue,liver tissue and musculature was determined by capillary gas chromatography and mRNA expressions of ACC-? in liver by RT-PCR.Result At the end of the experiment,the body weight and food conversion efficiency of rats in all experiment groups were significantly lower than that of control group.TG of high and middle dose group were obviously lower than that of control group.TC and blood glucose concentration were not statistically different among different groups.contents of C16:0,c9-C18:1,c9,c12-C18:2,?-C18:3 and C20:4 in the adipose tissue were significantly decreased in the experiment groups,but the content of C18:0 was not statistically different on fatty acid composition of musculature in rats.Fatty acid composition of liver tissue was remarkably lower than that of the control group,except C18:0 and c12-C18:2.mRNA expression level of ACC in liver of high dose group was significantly decreased (P

OBJECTIVE:To observe therapeutic efficacy and safety of Danshen chuanxiongqin injection combined with flunari-zine hydrochloride in the benign prevention and treatment of paroxysmal positional vertigo (BPPV) and lower extremity deep ve-nous thrombosis (DVT) in post-operative long-term bedridden patients with lower limb fractures. METHODS:300 post-operative long-term bedridden patients with lower limb fractures were selected and randomly divided into observation group and control group,with 150 cases in each group. Control group was given Flunarizine hydrochloride capsules orally 10 mg,qd;observation group was additionally given Danshen chuanxiongqin injection 10 ml+5% Glucose injection 250 ml,ivgtt,qd. The incidence of BPPV and DVT were observed in 2 groups after intervention,and the circumference of lower limb,blood coagulation indexes, blood rheology indexes and inflammatory factor were observed before and after intervention,and the incidence of ADR was com-pared. RESULTS:The incidence of BPPV and DVT in observation group were 18.0% and 16.7%,which were significantly lower than in control group(48.7% and 52.7%),with statistical significance(P<0.05);after intervention,the circumference of lower limb,blood rheology indexes and the levels of inflammatory factors in 2 groups were decreased significantly, while the coagula-tion indicators were significantly improved;the observation group was better than the control group,with statistical significance (P<0.05). There was no statistical significance in the incidence of ADR between 2 groups(P>0.05). CONCLUSIONS:Danshen chuanxiongqin injection combined with flunarizine hydrochloride is effective in the prevention of BPPV and DVT in long-term bed-ridden patients with lower limb fractures,with low incidence of ADR.

Objective To evaluate non-hazardous treatment efficiency of night soil in the three-grille mode septic tanks so as to give the evidence to government for policy-making. Methods One hundred and thirty normally runningthree-grille mode septic tanks were surveyed in five cities of Jiangsu Province in 2009. The fecal samples from first chamber and wastewater samples from third chamber were collected and examined for fecal coliform (FC) , parasite eggs including Schistosoma japonicum eggs, As-caris eggs and hookworm eggs, chemical oxygen demand ( COD), five-day chemical oxygen demand (BOD_5) and ammonia nitrogen (NH,-N) in lab. The data were analyzed by statistical software SPSS 13.0. Results The mean qualified rates of FC in the first chamber and third chamber of septic tanks were 3.1% and 100% respectively, showing significant difference (P <0.001). Hookworm eggs and Ascaris eggs were found in the first chamber of one and four septic tanks respectively and the density was one or two eggs in one hundred milliliter. The mean removal rates of FC, COD, BOD_5 and NH_3 -N were (99.96 ± 0.03) % , (60.69 ± 21.77) % , (60.13 ± 23. 20 ) % and (44. 14 ± 24.61) % , respectively. For the value of FC, COD, BOD, and NH_3 -N, there were significant difference between the first chamber and the third chamber (P_(FC) =0.000 1, P_(COD) =0.000 1, P_(BOD5) =0.000 1, P_(NH3-N) = 0.000 1, P < 0.001). Conclusion The treatment efficiency of septic tank could meet the sanitary standard for non-hazardous treatment of night soil, and it could use as a useful primary facility for human feces and urine treatment in rural areas.

Objective To investigate and analyze the changes of Ascaris lumbricoides infection in rural residents of Jiangsu Province during 13 years and its influencing factors in order to provide the basis of making practical policies for ascariasis control in future. Methods The data were analyzed about the rates of Ascaris infection and mass chemotherapy, per capita income, and the rates of the use of running water and hygienic toilets in the southern part, the middle part and the northern part of Jiangsu Province from 1990 to 2002, and the main influencing factors for Ascaris infection were explored. Results The prevalence rate of Ascaris infection decreased continuously during 13 years, from 39.51% to 2.14%, and the decrease rate was 94.58%. In 2002, the infection rate was the lowest, only 0.41%, decreased by 98.92% in the middle part of Jiangsu Province, and the infection rate was the highest, 5.09%, decreased by 89.97% in the northern part of Jiangsu Province. The accumulated rates of mass chemotherapy were 159.00% in middle part of Jiangsu Province,103.00% in the southern part of Jiangsu Province and 105.00% in the northern part of Jiangsu Prvince.The per capita income, the use of running water and hygienic latrines increased gradually from the northern part to the southern part and there were significant differences in the 3 survey regions. Conclusion The Ascaris infection rate is influenced by mass chemotherapy, economics and health conditions in rural residents, especially the mass chemotherapy.

Objective To know the contamination status of Giardia lamblia and Cryptosporidium in drinking water of Jiangsu Province,so as to provide the evidence for producing hygiene and safety drinking water. Methods A total of 28 water plants of 13 cities in Jiangsu Province were selected,and the source water(10 L),chlorinated water(100 L)and tap water(100 L) were collected separately in each site. The water samples were then treated by filtration,washing,centrifuging concentration, immune magnetic separation,and immunofluorescent assay,to detect the numbers of Giardia cysts and Cryptosporidium oocysts. Results Totally 84 samples from 13 cities were collected,including 28 source water,28 chlorinated water and 28 tap water samples. Among the chlorinated water and tap water samples,no Giardia cysts and Cryptosporidium oocysts were found. Howev-er,Giardia cysts were detected in 3(10.71％,3/28)source water samples(Yancheng,Lianyungang,Changzhou cities),with the density of 1 cyst/10 L of all. Cryptosporidium oocysts were also detected in 3(10.71％,3/28)source water samples(Nan-jing,Zhenjiang,Yangzhou cities),with the density of 1 oocyst/10 L of all. Conclusions The source water in partial areas of Ji-angsu Province has been contaminated by Giardia and Cryptosporidium. To ensure the safety of drinking,the regulation of source water and surveillance of drinking water should be strengthened.

Objective To understand the status and characteristics of principal human parasitic infections in rural areas of Jiangsu Province in order to provide basis for decision-making of practical control measures. Methods The survey data of principal human parasites in 58 sample sites of 19 counties (cities or areas) in Jiangsu Province were analysed on family clustering by G test, according to the methods of National Investigation Scheme on Principal Human Parasites. Results The infection of Ascaris lumbricoides, hookworm, Trichuris trichinra and Clonorchis sinensis in the province had obvious family clustering, while those in each county (city or district) appeared different states in some-points with the changing of parasitic infection rates and infection degrees. Conclusions The infection rates and infection degrees of principal human parasites decrease obviously in Jiangsu Province. The family clustering is disappearing with the dropping of them. Chemotherapy in family and health education should be strengthened to consolidate the control results in future.

Objective To understand the status of soil?transmitted nematode infections in rural residents so as to provide the evidence for formulating the guidance for prevention and control of the diseases. Methods The national surveillance sites of soil?transmitted nematode infections were established in Shuyang County,Suqian City,Jiangsu Province from 2006 to 2015. At least 1 000 fecal samples of residents aged 3 years or above were collected in every autumn,and the intestinal helminth eggs were detected with the Kato?Katz technique and the Enterubius vermicularis eggs were detected by the cellophane tape method for children aged 3-12 years. The soil samples were collected from vegetable fields,lavatories,courtyards and kitchens to exam?ine Ascaris lumbricoides eggs and larvae of hookworm. Results The infection rates of soil?transmitted nematodes in residents and E. vermicularis in children reduced from 1.81%(19/1 049)and 4.72%(5/106)in 2006 to 0.25%(3/1 180)and 0(0/263) in 2015,respectively,in the surveillance sites. The infection intensity was mild in all the infected cases. The soil samples were negative for detecting A. lumbricoides eggs and hookworm larvae. Conclusion The infection rates of soil?transmitted nema?todes in the residents and E. vermicularis in the children show a decreasing trend and keep at a low level of prevalence in Shuy?ang County.