Objective To understand the distribution and characteristics of historical Oncomelania hupensis snail environ-ments and wetland environments in Wuxi City since 1952 so as to provide the evidence for formulating the monitoring strategy after the schistosomiasis transmission was interrupted. Methods A cross-sectional survey was conducted to collect the informa-tion of historical O. hupensis snail environments and wetland environments. Google Earth was used to present and analyze the distribution and characteristics of them. Results There were 2 124 historical O. hupensis snail environments in Wuxi City and the accumulative area was 2 995.7 hm2. In 2013 there were 61 surveillance sites of wetland with the area of 32.8 hm2 totally 1 695 snails were caught and no O. hupensis snails were found. Conclusion The historical O. hupensis snail environments were distributed widely and covered a large area in Wuxi City. The surveillance should be focused on the key environments and wetland.

Objective To investigate the prevalence and risk factors of Toxoplasma gondii infection among key populations in Wuxi City,Jiangsu Province,so as to provide evidences for developing preventive and control interventions for T. gondii in-fection. Methods A questionnaire was designed to conduct face-to-face interviews to HIV/AIDS carriers/patients,tumor pa-tients,pregnant women and pet breeders. The blood samples were collected to test anti-Toxoplasma IgM and IgG antibodies by using ELISA method. Results Totally 404 participants were investigated,and 38 were positive in testing T. gondii antibodies (9.4%),and among these,37(97.4%)were IgG positive and 1(2.6%)was IgM positive. The multivariate logistic regression indicated that age,regularly contacting cats/dogs and being HIV positive were associated with the infection of T. gondii(OR=2.1,2.6 and 2.3,all P < 0.05). Breeding pets,being HIV positive and being tumor patients were more likely to infect T. gondii than being pregnant(OR = 1.5,8.1 and 2.8,all P < 0.05). Conclusion The high infection rate of T. gondii is observed among key populations in Wuxi City,so that the effective measurements should be taken to enhance the intervention among key popula-tions including immunocompromised people,pet breeders or people having bad dietary habits of eating raw food.

Objective To investigate the expression and clinical significance of ROC1 in ovarian cancer tissues ,to provide new ideas for the gene therapy of ovarian cancer .Methods 261 women with ovarian cancer underwent resection from December 2005 to December 2007 in the Affiliated Hospital of Zunyi Medical College and with 5 years follow-up were enrolled .ROC1 mRNA transcription and protein expression level of ovarian cancer tissue and surrounding normal tissue were tested ,and later the correla-tion between the results and patient′s prognosis was statistically analyzed .Results ROC1 in ovarian cancer tissue was over-ex-pressed ,but almost no expression in surrounding normal ovarian carcinoma ;ROC1 expression levels had a negative correlation with the survival rate of the patients .Conclusion ROC1 in ovarian cancer tissue was over-expressed ,but almost no expression in sur-rounding normal ovarian carcinoma ;ROC1 expression levels had a negative correlation with the survival rate of the patients .

Objective To investigate the mechanism of AS2 O3 inducing the apoptosis of myelodysplastic syndrome(MDS) cell line SKM-1 .Methods SKM-1 cells were incubated with AS2 O3 ,and then the cellular morphology was observed ,flow cytometry was used to determine the apoptosis ,RT-PCR was used to detect the expressions of Bcl-2 ,Bax and caspase-3 mRNA .Results 0 .25、0 .50 μmol/L AS2 O3 could not markedly induce the apoptosis of SKM-1 cells (P>0 .05) .But 2 .00、8 .00、32 .00 μmol/L of AS2 O3 could obviously promote the apoptosis of SKM-1 cells .With the increase of the acting time and concentration of AS2 O3 ,the apoptosis rate increased ,too(P<0 .01) ,the expressions of anti-apoptotic gene Bcl-2 mRNA decreased (P<0 .01) ,the expressions of promoting apoptosis gene Bax and caspase-3 mRNA increased (P<0 .01 ,P<0 .05) .Conclusion 2 .00、8 .00、32 .00 μmol/L of AS2O3 may promote the apoptosis of SKM-1 cells through down-regulating the expression of Bcl-2 gene and up-regulating the ex-pressions of Bax and caspase-3 genes .

Objective To compare the effects of transforaminal peripheral nerve stimulation(PNS) and spinal cord stimulation(SCS) in treatment of postherpetic neuralgia.Methods A total of 64 patients with postherpetic neuralgia in our hospital from January 2015 to January 2016 were divided into PNS group and SCS group according to random number table.Both two groups were treated with PNS or SCS for 14 days,respectively.Visual analogue scale(VAS) and piasburgh sleep quality index(PSQI) were adapted to assess the effects at the different time of preoperation, postoperation 1 day,1 week,1 month,2 months.Results At the preoperation and 2 months postoperation,in PNS group,the VAS were (8.4±1.6) and (1.4±1.0),the PSQI were (16.1±2.1) and (5.8±1.3),respectively;meanwhile in the SCS group,the VAS were (8.6±1.8) and (2.9±1.2),the PSQI were (15.6±2.3),(7.5±1.5),respectively.Obviously,the VAS and PQSI at different follow-up stages were improved after transforaminal PNS or SCS treatment, the differences were signicant(P<0.05).Moreover,the PNS group had lower VAS and higher PQSI compared with the SCS group at different follow-up stages,the differences were signicant(P<0.05).Conclusion The transforaminal PNS achieved satisfying outcomes on pain relief and quality of sleep improvements for the postherpetic neuralgia patients,which was superior to that of the SCS.

Objective To understand the capability of parasitic disease control and prevention among professional and tech?nical personnel in medical and health institutions in Wuxi City,so as to provide the evidence for promoting relative capability building. Methods Forty?one professional and technical persons from 22 medical and health institutions received the evalua?tion through the theoretical knowledge exam and laboratory operation skill assessment. Results The average score of theoretical knowledge exam was(76.5±15.6)with the pass rate of 80.5%and excellent rate of 48.9%. The average score,pass rate and ex?cellent rate for Plasmodium blood slide making were(7.3 ± 1.5),87.8%and 41.5%respectively,the average score,pass rate and excellent rate for Plasmodium blood slide reading were(14.0 ± 7.2),31.7% and 12.2% respectively;the average score, pass rate and excellent rate for helminthes microscope examination were(19.4 ± 10.4),24.4%and 0 respectively;the average score,pass rate and excellent rate for Oncomelania hupensis snail identification were(8.6±1.1),95.1%and 73.2%respectively. The average scores of helminthes microscope examination and Oncomelania hupensis snail identification were higher in the par?ticipants with middle?level professional title or above than in the participants with primary level professional title (both P <0.05). The average scores of theoretical knowledge exam,Plasmodium blood slide reading and helminthes microscope examina?tion were higher in the participants from disease control and prevention institutions than in the staff who came from medical insti?tutions(all P<0.05). Conclusions The professional and technical personnel in medical and health institutions in Wuxi do bet?ter in theoretical knowledge,Plasmodium blood slide making and Oncomelania hupensis snail identification. However,the capa?bility of parasite microscope examination is urgently needed to be improved in the future.

Objective To study the clinical effects of pulmonary recruitment maneuvers combined with pressure regulation volume control (PRVC) in the treatment of severe respiratory distress syndrome (RDS) in premature infants.Method From July 2015 to September 2016,preterm infants of grade Ⅲ-Ⅳ RDS who received PRVC treatment in neonatal department of Huai'an Maternal and Child Health Hospital were assigned into recruitment maneuver group and control group (without recruitment maneuver) using randon number table.The ventilator parameters were observed at 1,2,6,12,18 h and 24 h after ventilation.Recovery rate,duration of oxygen therapy and ventilation,duration of hospital stay,incidence of second dose of pulmonary surfactant and complications were compared between two groups.Result A total of 18 cases were included in recruitment maneuver group and 19 cases in control group.The recovery rate of recruitment maneuver group was higher than control group (16/18 vs.10/19).The duration of oxygen therapy [(6.6 ± 2.3) d vs.(11.8 ± 3.0) d],duration of ventilation [(4.1 ± 2.3) d vs.(6.4 ± 2.8) d],duration of hospital stay [(26.7 ± 7.0) d vs.(33.0 ± 8.4) d] in recruitment maneuver group were significantly shorter than control group (P ＜ 0.05).The proportion of bronchopulmonary dysplasia (1/18 vs.8/19),retinopathy of premature (1/18 vs.7/19),patent ductus arteriosus that require medication closure (1/18 vs.7/19)and incidence of second dose of pulmonary surfactant (2/18 vs.9/19) in recruitment maneuver group were significantly lower than control group (P ＜ 0.05).While the complication of air leak,necrotizing enteritis,Ⅲ-V grade intracranial hemorrhage showed no significant differences between the two groups (P ＞ 0.05).Conclusion Recruitment maneuvers combined with PRVC in treatment of severe RDS premature infants can improve recovery rate and oxygenation.It can also shorten the duration of oxygen therapy,ventilation and hospital stay.It can reduce the incidence of bronchopulmonary dysplasia and retinopathy of premature.It is worth spreading in clinical practice.reduce the incidence of bronchopuhmonary dysplasia and retinopathy.It is worthy of promotion.

Objective To investigate the cause,prevention methods and curative effect on two different drainage methods of subcutaneous effusion after breast cancer surgery.Methods The clinical data of 68 cases subcutaneous effusion among 2 100 cases underwent breast cancer modified radical surgery in our hospitial were analyzed retrospectively from January 2010 to December 2016.The vacuum sealing drainage was performed in 1 032 cases and wound high negative pressure drainage system was performed in 1068 casess.Both the elastic bandage compresstion dressing didn't used.Results In 2 100 cases,68 cases of subcutaneous effusion occured (3.2％),including longitudinal incision 48 cases and transverse incision 20 cases.Among 1 068 cases of high negative pressure drainagesystem,subcutaneous effusion occured in 36 cases including 28 cases of incisional infection and 8 cases of skin flap necrosis.The extuhation time was 8-36 days,average 12 days.Among 1 032 cases of vacuum sealing drainage,subcutaneous effusion occured in 32 cases including 22 cases of incisional infection,10 cases of skin flap necrosis.The extubation time was 6-12 days,average 8 days.All cases were followed up for 3 months,no subcutaneous effusion and axillary effusion occurred.Conclusions Adequate drainage is the key to prevent subcutaneous effusion.Both vacuum sealing drainage and wound high negative pressure drainage can effectively reduce the occurrence of subcutaneous effusion,however,vacuum sealing drainage is more suitable for wounds with more exudation,larger lacuna and deeper incisions,especially the infected wound and abscess.