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1.

Background  

Climate change is taking a toll on human health, and some leaders in the public health community have urged their colleagues to give voice to its health implications. Previous research has shown that Americans are only dimly aware of the health implications of climate change, yet the literature on issue framing suggests that providing a novel frame - such as human health - may be potentially useful in enhancing public engagement. We conducted an exploratory study in the United States of people's reactions to a public health-framed short essay on climate change.  相似文献   
2.
Itiswellknownthatcertaincytokinesplayapivotalroleinthedevelopmentoftraumaandshock.Tumornecrosisfactor(TNF)isapolypep-tiedcytokinesynthesizedinmonocytesandmacrophagesinresponsetolipopolysaccharide(LPS)stimulation-TherelationshipbetweenTNFandendotoxic-septicshockbecomesafocusoftheresearchofshockmediators[1'2].Alargeamountofexperimentalandclinicaldata[3-9JsuggestthatTNFplaysanimportantroleinthepathogenesisofendotoxic-septicshockbuttheprecisemechanismandtherelationshipofTNFtoshockseverityrem…  相似文献   
3.
Comet assay is a useful technique in the detection of DNA damages, particularly DNA strand breaks; and it has been utilized to show that a potent carcinogen N-methyl-N'-nitro-N-nitrosoguanidine (MNNG), can induce such damages. Recently, gammaH2AX foci formation has been suggested as another sensitive way to detect DNA double strand breaks (DSBs). However, there is no systematic comparison being conducted to evaluate the consistency of these two methods. Using MNNG as a model chemical, the sensitivity of neutral comet assay and gammaH2AX foci formation in detecting MNNG-induced damage was studied. It was found that at concentrations of 0.1 and 1 microg/ml, both methods can detect MNNG-induced damage in human amnion FL cells. However, at 0.1 microg/ml, comet assay revealed more percentage of cells with DNA damage than gammaH2AX fluorescence revealed. On the other hand, while gammaH2AX foci were readily formed at very early times by 10 microg/ml MNNG treatment, neutral comet assay did not detect any significant DNA damage at the same time points. In addition, 10 microg/ml MNNG induced a distinct whole nuclei staining pattern of gammaH2AX, a type of DNA damage which was not detected by neutral comet assay but could be detected by alkaline comet assay. Therefore, gammaH2AX may be used as a sensitive indicator for DNA damage.  相似文献   
4.
140 patients with brain tumor were treated by CT-guided stereotactic injections of radionuclides, such as Aurum-198 (198 Au), Phosphorus-32 (32 P) and Yttrium-90 (90Y). Of these patients aged from 3 to 67 years (average 37), 64 were male and 76 female. Astrocytoma was found in 75 patients, craniopharyngioma in 46, metastatic carcinoma in 7, meningioma in 5, germinoma in 4 and pituitary adenoma in 3. The tumors were located in the deep part or functionally critical area of the brain. After 267 times of injection of colloidal isotopes, no major adverse effects or complications occurred. Follow-up for 6 to 48 months showed improvement in symptoms in 104 (74.3%) patients and CT scanning showed the diminished tumors.
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5.
目的总结应用显微外科及带蒂包皮皮瓣一期修复尿道下裂的经验,提高手术成功率。方法回顾性分析38例一期尿道下裂修复手术及术后并发症。患儿年龄3~22岁,平均7.5岁。阴茎头冠状沟型12例,阴茎体型19例,阴茎根部型7例,其中6例曾在院外行阴茎下屈矫正术。应用显微外科技术,单纯选择带蒂包皮岛状皮瓣法一期修复尿道下裂32例,联合应用Duplay术式6例。结果随访3个月~2年,35例患儿术后阴茎外观满意,排尿通畅,无明显并发症:术后发生尿瘘2例,再次手术后治愈。1例术后3月出现尿道外口狭窄,经尿道扩张治愈。手术成功率为94.7%。结论应用显微外科及带蒂包皮岛状皮瓣一期修复尿道下裂,成功率高,并发症少,是治疗尿道下裂的良好方法。  相似文献   
6.
TuberculosisandSchistosomiasisarethemajorcontagiousdiseaseswhicharethemostdangeroustothepeople’shealth Inordertogetridofthem ,wemustlookforamoreusefulvaccine Bythetech niquesofmolecularbiology ,2 6 0 0 0DaGlutathionStransferase (GST) genewasclonedintotheE coli MycobacteriumtransferringandexpressionvectorpBCG 2 0 0 0totransformittoMycobacteriumsmeg matismc2 15 5 (MS)andBCGseparatelyinordertoconstructrMS Sj2 6GSTvaccineandrBCG Sj2 6GSTvaccine Inthisstudy ,theBALB/cmicewereimmu niz…  相似文献   
7.
Osteopontin (OPN) plays a pivotal role in various immune responses and inflammatory diseases. OPN is expressed in various granulomatous diseases; however, the cellular and molecular role of OPN in these diseases is not well known. We analyzed the role of OPN in a beta-glucan-induced hepatic granuloma model. First, we found that neither OPN deficiency nor overexpression of OPN affected the number and the size of hepatic granulomas at day 7, indicating that OPN is not involved in the formation of hepatic granulomas at the early stages. Importantly, OPN did not influence the liver tissue damage as defined by alanine aminotransferase and aspartate aminotransferase levels at early stages. Second, OPN deficiency resulted in the reduction of IL-12 and IFN-gamma production at early stages. Third, at late stages, OPN deficiency resulted in a decrease in the number and size of hepatic granulomas, and a reduction of liver tissue injury. This was due to the reduction of the cellular recruitment including macrophages, CD4 T cells and dendritic cells into the liver, and the reduction of tumor necrosis factor (TNF)-alpha production in the liver. In contrast, overexpression of OPN resulted in the persistence of granuloma formation. These data suggest that OPN affects the persistence of hepatic granuloma formation. Our results indicate that OPN up-regulates the production of IL-12 and IFN-gamma within the granulomas at early stages, and OPN has an additional role in the regulation of cellular recruitment and TNF-alpha production at late stages that determine the severity of liver tissue injury.  相似文献   
8.
目的:总结手术中发生医源性血管损伤的处理经验。方法:10例在外科手术中损伤血管的患者,其中门静脉,下腔静脉、髂总静脉损伤各2例,股总静脉、颈总动脉、腋静脉、腘动脉损伤各1例。行血管修补术5例,行端-端吻合术1例,自体静脉移植术1例,人工血管移植1例,钳夹止血1例,血管结扎1例。结果:本组痊愈8例;死亡2例,其中下腔静脉损伤止血失败死亡1例,颈总动脉损伤结扎死亡1例。结论:医源性血管损伤重在预防,一旦发生血管损伤,迅速有效地控制出血是手术成功的关键,血管修补或吻合术疗效良好。  相似文献   
9.
目的:对我国不同类型血站的收入状况进行问卷调查和深度访谈,分析近年来我国血站收入结构变动情况及特征,找到影响血站收入结构变动的主要项目,合理优化血站收入结构。方法:2018 年8月采用普查的方法对全国353家(32 家血液中心、321 家中心血站)的收入状况进行问卷调查,同时选取山东省6地市中心血站的负责人进行深度访谈。对收集的血站收入数据,运用结构变动方法进行分析。 结果:2013年-2017年公益一类血站收入的结构变动度为24.22%,财政补助收入、事业收入是构成公益一类血站收入变动的主要来源,其中财政补助收入的贡献率53.20%;2013年-2017年我国公益二类血站收入的结构变动度为16.79%,财政补助收入、事业收入是构成公益二类血站收入变动的主要来源,其中贡献率最大的是事业收入49.99%。结论:财政补助收入、事业收入是影响血站收入结构变动的主要项目,两类血站的日常运营与建设对财政补助收入高度依赖,公益二类经营收入增幅不明显,发展不足。  相似文献   
10.

Wastewater irrigation is becoming a massive challenge for sustainable agriculture. Particularly, copper (Cu) presence in wastewater poses a great threat to the food chain quality. Thus, scientists need to address this issue by using chemical and organic soil amendments to restore the soil ecosystem. Therefore, this study aims to examine the efficacy of sulphur, compost, acidified animal manure and sesame straw biochar for Cu immobilization, adsorption and Brassica growth in wastewater irrigated soil. The current findings presented that all the soil amendments prominently improved brassica yield and significantly minimized the Cu uptake by Brassica shoots and roots in sesame straw biochar (SB) (64.2% and 50.2%), compost (CP) (48% and 32.5%), acidified manure (AM) (37% and 23.2%) and Sulphur (SP) (16% and 3.1%) respectively relative to untreated soil. In addition, Cu bioavailability was reduced by 51%, 34%, 16.6%, and 7.4% when SB, CP, AM, and SP were incorporated in wastewater irrigated polluted soil. The Cu adsorption isotherm results also revealed that SB treated soil has great potential to increase Cu adsorption capacity by 223 mg g??1 over control 89 mg g??1. Among all the treatments, SB and CP were considered suitable candidates for the restoration of Cu polluted alkaline nature soil.

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