1.Effect of wild feces detection in Oncomelania hupensis environments on sur-veillance of infection source of schistosomiasis
Zuwu TU ; Bo LI ; Xiaowei SHAN ; Hong ZHU ; Shunxiang CAI
Chinese Journal of Schistosomiasis Control 2016;28(5):601-602
Objective To evaluate the effect of wild feces detection in Oncomelania hupensis environments on the surveil?lance of infection source of schistosomiasis,and find the weakness in schistosomiasis control in Hubei Province,so as to put for?ward the targeted strategies and measures. Methods Four environments with O. hupensis snails in endemic areas of Hubei Provinces,where human and livestock often haunted,were selected according to the river systems,namely the Juzhanghe River beach in Jingzhou City,Changjiang River beach in Jiayu County,Hanbei River beach in Tianmen City,and Changshou River beach in Zhongxiang City,then the snail survey and wild feces detection were implemented in the selected environments. Re?sults There were O. hupensis snails,livestock,wild feces of cattle or sheep as well as positive cattle feces found in all the 4 environments,and the positive rate of schistosome miracidium incubation was 47.62%. Conclusion The schistosome miracidi?um positive rate of wild feces of cattle is high in the environments with snails in endemic areas of Hubei Province ,which has high risk for schistosomiasis transmission.
2.Surveillance results and risk analysis of Schistosoma japonicum-infected sen-tinel mice in key water regions in Hubei Province in 2016
Guo LI ; Yanyan CHEN ; Zhen TU ; Xiaowei SHAN ; Shunxiang CAI
Chinese Journal of Schistosomiasis Control 2017;29(4):412-415
Objective To investigate the water infectivity in key water regions,and analyze the transmission risk of schisto-somiasis in suspicious and high-risk environments in Hubei Province in 2016. Methods Schistosome-endemic areas of the Yangtze River,the Hanbei River and the Fu River were chosen as the surveillance and forecast sites. The water infectivity was detected by using the sentinel mice during the flood season. The infection status of residents in the villages around the surveil-lance sites and the activities of human beings and domestic animals were surveyed. The emergency response system was initiated when the water infectivity areas were detected. Results From May to June,among the ten surveillance sites of the first batch, two positive spots with infected mice were found,accounting for 20%. All the recovered mice(totally 200)were dissected:five mice were infected,with a total infection rate of 2.5%. Totally five schistosome adult worms were collected,with mean worm bur-den of 1 worm per infected mouse. The site with cercariae-infected water body started the emergency response and no epidemic occurred. From August to September,among the eight surveillance sites of the second batch,the recovered mice(totally 160) were dissected,and no infected sentinel mice were found. Conclusion The sentinel mice method plays an important role in an-alyzing the schistosomiasis transmission risk in Hubei Province.
3.Bone marrow mesenchymal stem cell transplantation combined with lithium chloride treatment for avascular necrosis of the femoral head in rabbits
Wei LI ; Xiaowei LU ; Cheng XIAN ; Shan LAO
Chinese Journal of Tissue Engineering Research 2016;20(6):868-875
BACKGROUND:Lithium chloridecan promote the proliferation and osteogenic capacity of bone marrow mesenchymal stem cels in the necrotic region after avascular necrosis of the femoral head, which has become an issue of concern. OBJECTIVE:To compare the advantages and disadvantages of bone marrow stem cel transplantation combined with lithium chloride in the treatment of rabbit femoral head necrosis. METHODS: Passage 2 bone marrow mesenchymal stem cels from 1-week-old New Zealand rabbits were cultured in 0, 5, 10, 20, 40 mmol/L lithium chloride. Forty-eight healthy adult New Zealand rabbits were selected to make femoral head necrosis models in the right femoral head using liquid nitrogen freezing method and then randomized into four groups: model group with no implantation; lithium chloride group given lithium chloride treatment at 3 days after modeling; cel transplantation group given gelatin sponge implantation and bone marrow mesenchymal stem cel suspension injection into the femoral head after modeling; combined group given bone marrow mesenchymal stem cel suspension injection and lithium chloride treatment. Intraperitoneal injection of lithium chloride (45.2 mg/kg) was given daily beginning at the postoperative 3rdday, and the treatment duration was 4 weeks. RESULTS AND CONCLUSION:Lithium chloride at 10 mmol/L had the maximum effect on the proliferation of rabbit bone marrow mesenchymal stem cels, and if the concentration of lithium chloride was > 10 mmol/L, the promotion role of lithium chloride began to decline. After combined treatment, the morphology of the femoral head was restored a little, with increased bone density and thickened trabecular bone; the level of β-catenin in the femoral head was significantly increased in the combined group compared with the cel transplantation group or the lithium chloride group. These findings show that bone marrow stem cel transplantation combined with lithium chloride treatment can promote the recovery from femoral head necrosis by increasing bone mass of the trabecular bone and bone density of the femoral head in the necrotic region.
4.Application of CroelDRAW software in drawing sketch map of schistosomia-sis control
Xiaowei SHAN ; Ying XIAO ; Shunxiang CAI ; Xiaorong ZHOU ; Mei CHEN ; Jianbing LIU
Chinese Journal of Schistosomiasis Control 2017;29(2):231-234
Objective To improve the information level of schistosomiasis control by using the related functions of Corel-DRAW software. Methods Combining with the requirement of schistosomiasis control,the sketch map was drawn according to the linear element drawing,the geometric drawing,the color rendering and the text adding. Results The schistosomiasis epi-demic sketch map and the Oncomelania hupensis snail distribution sketch map at all levels were produced in CorelDRAW soft-ware. Conclusion The sketch map drawing in CorelDRAW software is beautiful and standardizing,and it can improve the lev-el of information management.
5.Diagnosis and treatment of nasal sinus mucoceles invaded the skull base and orbit.
Xiaowei PENG ; Jianjun YU ; Zan LI ; Jie DAI ; Hao TIAN ; Jie HU ; Zhenfeng SHAN ; Xing SHEN
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(13):942-944
OBJECTIVE:
To review the clinical manifestations and management of nasal sinus mucoceles invaded the skull base and orbit.
METHOD:
Medical records for 30 patients of paranasal sinus mucoceles invaded the skull base and orbit were reviewed retrospectively. CT and MRI were important tools for diagnosing nasal sinus mucocele. The patients received endoscopic surgery to remove mucocele, some of them were operated auxiliary incision. Steroid therapies were given after the operations and routine examination with endoscopy were carried out during follow-up.
RESULT:
All cases were successfully performed surgery without complications after the surgeries, or the majority of symptoms. However, vision recovery was observed only in some patients. Recovery of vision depended on the timing of surgery and severity of initial visual loss. Delay treatment can seriously compromise the recovery of vision impairment. Moreover, the patients without light perception before surgery had poor visual recovery even when optic nerve decompressions were performed.
CONCLUSION
Endoscopic surgery has effect on nasal sinus mucocele with visual loss. Because visual recovery depends on prompt diagnosis and surgical intervention,a good understanding of the disease and prompt imaging studies are important.
Adult
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Aged
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Endoscopy
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Female
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Follow-Up Studies
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Humans
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Male
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Middle Aged
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Mucocele
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pathology
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surgery
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Orbit
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pathology
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surgery
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Paranasal Sinus Diseases
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pathology
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surgery
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Retrospective Studies
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Skull Base
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pathology
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surgery
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Young Adult
6.Study of Gray Matter Loss in Alzheimer's Disease Based on Automatic Voxel-based Morphometry
Bin YAN ; Wei WANG ; Hua LIU ; Kuncheng LI ; Ke LI ; Baoci SHAN ; Xiaowei TANG
Space Medicine & Medical Engineering 2006;19(1):1-5
Objective To explore the gray matter loss of Alzheimer's disease (AD) patients by processing the magnetic resonance imaging (MRI) with computer. Method A voxel-based morphometry (VBM) method was applied in this study. Result Bilateral loss of gray matter in AD patients was found in the entorhinal/ hippocampal/parahippocampal cortex areas, amygdala, the head of the caudate nucleus, middle temporal gyrus, cingulate gyrus, inferior parietal lobule, insula and dorsolateral prefrontal cortex. Furthermore, area of right pulvinar, cortex of superior temporal gyrus and superior parietal lobule reduced significantly. On the other hand, somatosensory/motor cortex, cerebellum and occipital lobe were relatively intact. Conclusion VBM overcomes the shortcomings of region of interesting(ROI), such as time-consuming, dependence on observer, and poorly reproducible, and can analyze the gray matter loss objectively and automatically and have a good perspective for clinical applications.
7.Effect of nucleus pulposus autograft to the cavum epidurale on the structure and function of nerve roots in rats
Shisheng HE ; Tiesheng HOU ; Xiaowei SHAN ; Jianwen WANG ; Jinhui XIA ; Ji WANG
Academic Journal of Second Military Medical University 2001;22(5):435-438
Objective: To find out the pathomechanism of low back and leg pain related to intervertebral disc. Methods: The nucleus pulposus of coccygeal vertebral was transplanted to the cavum epidurale of rats to establish the non-compressive model with transplanted nucleus pulposus. The evoke potentials and morphology of nerve roots were observed. Results: Even without mechanical compression, rats transplanted with nucleus pulposus resulted in significant harm to evoked potential and morphology of cauda equina. Conclusion: The biomechanical and/or immunologic inflammatory effect of nucleus pulposus can result in nerve roots injury and is an important factor in the pathogenesis of low back and leg pain.
8.Prevention and treatment of postoperative complications of the penile elongation.
Muosheng, YU ; Shengguo, SHAN ; Yueqiang, ZHAO ; Xiaowei, WU ; Lichun, ZHOU ; Daochou, LONG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2003;23(2):176-7
To explore the causes of the postoperative complications of the penile elongation and the measures to prevent them in order to raise the success rate of the penile elongation. 1,000 patients who had received the penile elongation were reviewed and analyzed for the causes of postoperative complications, and the measures of prevention and treatment were discussed. Our results showed that, of the 1,000 cases, 64 had the postoperative complications, including 20 cases of edema of prepuce, 15 cases of flap necrosis, 12 hematoma, 9 infections, and 8 cases of fat and clumsy penis. It is concluded that correct operative manipulation, strict aseptic measures and necessary postoperative care and management could avoid or reduce the postoperative complications. When complications happened, a satisfactory result can be achieved with timely and correct treatment in the majority of the patients.
Edema/etiology
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Edema/prevention & control
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Hematoma/prevention & control
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Penis/*abnormalities
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Penis/injuries
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Penis/*surgery
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Postoperative Complications/*prevention & control
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Postoperative Complications/therapy
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Reconstructive Surgical Procedures/methods
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Surgical Flaps
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Surgical Wound Infection/etiology
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Surgical Wound Infection/prevention & control
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Urologic Surgical Procedures, Male/methods
9.Analysis of Oncomelania hupensis snail situation in schistosomiasis surveil-lance sites in Hubei Province from 2009 to 2014
Xiaowei SHAN ; Shunxiang CAI ; Xiaorong ZHOU ; Yanyan CHEN ; Zhengming SU ; Juan ZHANG ; Jianbing LIU
Chinese Journal of Schistosomiasis Control 2016;28(3):234-236,280
Objective To analyze the Oncomelania hupensis snail situation in schistosomiasis surveillance sites in Hubei Province from 2009 to 2014. Methods From 2009 to 2014,207 schistosomiasis endemic villages from 13 cities were selected as the surveillance sites in Hubei Province,where the surveillance of snail situation was performed,and the data about the in?dexes of snail situation during the 6 years were collected and analyzed statistically. Results From 2009 to 2014,totally 80 963.47 hm2 of snail areas were investigated,and 45 309.77 hm2 of area with snails as well as 364.93 hm2 of area with infected snails were found out,and 1 646 125 snails were captured. In the 207 surveillance sites,the density of living snails was reduced from 0.493 3 snail/0.1 m2 in 2009 to 0.339 3 snail/0.1 m2 in 2014,with a decline rate of 31.22%;the density of infected snails was reduced from 0.000 7 snail/0.1 m2 in 2009 to 0 in 2014;the infection rate of snails was reduced from 0.14%in 2009 to 0 in 2014. The infection rates of snails in the third?rank villages,endemic areas in inner embankment,ditch environment and weed environment were relatively higher. Conclusions The snail situation of Hubei Province has been declined steadily. However, the environment of snail breeding has not been changed completely. In order to consolidate the control achievements further ,the measures including mollusciciding and snail control projects should be strengthened.
10.Prediction of epidemic tendency of schistosomiasis with time-series model in Hubei Province
Yanyan CHEN ; Shunxiang CAI ; Ying XIAO ; Yong JIANG ; Xiaowei SHAN ; Juan ZHANG ; Jianbing LIU
Chinese Journal of Schistosomiasis Control 2014;(6):613-617
Objective To study the endemic trend of schistosomiasis japonica in Hubei Province,so as to provide the theo?retical basis for surveillance and forecasting of schistosomiasis. Methods The time?series auto regression integrated moving av?erage(ARIMA)model was applied to fit the infection rate of residents of Hubei Province from 1987 to 2013,and to predict the shot?term trend of infection rate. Results The actual values of infection rate of residents were all in the 95%confidence inter?nals of value predicted by the ARIMA model. The prediction showed that the infection rate of residents of Hubei Province would continue to decrease slowly. Conclusion The time?series ARIMA model has good prediction accuracy,and could be used for the short?term forecasting of schistosomiasis.