Surveillance of Oncomelania hupensis snails in source areas of east route of South-to-North Water Diversion Project / 中国血吸虫病防治杂志

Objective To understand the distribution of Oncomelania hupensis snails in source areas of the east route of Southto-North Warter Diversion Project and evaluate the effects of the snails on the safety of water transfer.Methods The investigation of snail distribution was carried out in the source areas of the east route of South-to-North Warter Diversion Project every spring.The method of the random sample combined with environmental sample was used for the field investigation.The beach land in the stilling pool of Jiangdu Pumping Station was selected as a surveillance site to observe the snail spread.Results The areas of the snail habitats and infected snails were 256.11,184.55,164.92,121.16 hm~2 and 8.27,1.0,1.0,0 hm~2 respectively in the source areas of the east route of South-to-North Wafter Diversion Project from 2006 to 2009.The densities of living snails had a downtrend,too.Google Earth showed that the areas of snail habitats distributed mainly in the Jiajiang River and Mangdao River in the source areas.The snail habitats were detected in the beach land in the stilling pool of Jiangdu Pumping Station.The research results showed that the snail spread related to the wastes from the river of drawing water.Conclusion There are the risks of snail spread in the source areas of the east route of South-to-North Wafter Diversion Project,so that the long-term surveillance and control on the snails is very necessary.

Early remedy for bulk trauma patients in China Wenchuan earthquake / 中华创伤杂志

Objective To explore methods of easy treatment of bulk trauma patients caused by Wenchuan earthquake.Methods Early treatment was done on 1123 patients including extremity injuries in 925,spinal injuries in 65,brain injuries in 46,thoracic injuries in 53 and abdominal injuries in 72.There were 809 patients with single part injury and 314 with multiple injury.Emergent operation was performed in 67 patients including 13 with liver repair,14 with spleenectomy,three with mesentery blood vessel repair,six with repair of multiple abdominal organ injuries,four with repair of raptured diaphragm and injured organs,12 with evacuation of intracranial hematoma,four with lung repair,five with partial resection of lung and bronchus,one with pericardium discission and five with internal fixation of ribs.Early operation was carried out in 166 patients including 105 with only debridement,36 with debridement plus external fixation and 25 with amputation.Results Of all,406 patients were cured,673 were transferred to higher level hospitals after fundamental treatment and three died.Conclusion Staged treatment is suitable for early management for bulk trauma patients.Damage control technique should be applied early for critically severe patients and those with severe disease of heart and lung.Repeated examination is efficient to avoid delayed diagnosis and treament.

Effects of serum of pregnancy-induced hypertension on umbilical vein endothelial cells / 第三军医大学学报

Objective To observe the changes in secretory functions of cultured umbilical vein endothelial cells injured by serum from pregnancy induced hypertension (PIH). Methods Endothelial cells isolated from the umbilical veins from moderate or severe PIH women (PIH group, n =10) and normal pregnant women (control group, n =8) were incubated at 37 ℃ in humidified air with 5% CO 2. Cell culture fluids were obtained at 3 and 4 d of primary culture. Contents of nitric oxide (NO), malondialdehyde (MDA), superoxide dismutase (SOD), lactate dehydrogenase (LDH ) in the cell culture fluids were measured. Results LDH activity and MDA contents in the cell culture fluids in PIH group were significantly higher than those in the control group ( P