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新颖非甾族拟蜕皮剂tebufenozide对各种昆虫的作用
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作者 周红晞 《农药译丛》 1995年第2期18-23,共6页
tbebufenozide(代号RH-5992)系新颖非甾族合成拟蜕皮剂,具有昆虫生长调节剂(IGR)作用。其化学结构为N-叔丁基-N′-(4-乙基苯甲酰基)-3,5-二甲基苯酰肼,是以罗姆-哈斯公司的杀虫剂抑食肼(RH-5849)为原型发展而来。据报导,罗姆-哈斯公司... tbebufenozide(代号RH-5992)系新颖非甾族合成拟蜕皮剂,具有昆虫生长调节剂(IGR)作用。其化学结构为N-叔丁基-N′-(4-乙基苯甲酰基)-3,5-二甲基苯酰肼,是以罗姆-哈斯公司的杀虫剂抑食肼(RH-5849)为原型发展而来。据报导,罗姆-哈斯公司的抑食胼对昆虫的蜕皮素受体(EcR)具有刺激作用,能引起昆虫特别是鳞翅目幼虫早熟,使幼体蜕皮致死。抑食肼尽管与天然蜕皮甾族激素分子结构不同,却具有蜕皮甾族激素的活性。 展开更多
关键词 非甾族 拟蜕皮剂 昆虫 杀虫剂 脱皮剂 抑食肼
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非甾体抗炎药、环糊精包合物的研究进展 被引量:2
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作者 宋伟明 李凤龙 《延边医学院学报》 CAS 1994年第2期146-150,共5页
初步总结了非甾体抗炎药、环糊精包合物的制备特点、溶解性、生物利用度、稳定性、作用、剂型、结构等方面研究进展,对其应用提出了展望.
关键词 非甾族抗炎药 环糊精 消炎镇痛药
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Prevalence and risk factors of gastroesophageal reflux disease in Qashqai migrating nomads, southern Iran 被引量:1
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作者 Ahmad Mostaghni Davood Mehrabani +4 位作者 Farnaz Khademolhosseini Seyed Jalil Masoumi Fariba Moradi Najaf Zare Mehdi Saberi-Firoozi 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第8期961-965,共5页
AIM: To investigate the prevalence and risk factors of gastroesophageal reflux disease (GERD) symptoms in Qashqai migrating nomads with a different life style in Fars province, southern Iran. METHODS: In summer 20... AIM: To investigate the prevalence and risk factors of gastroesophageal reflux disease (GERD) symptoms in Qashqai migrating nomads with a different life style in Fars province, southern Iran. METHODS: In summer 2006, 748 Qashqai migrating nomads aged 25 years or more were enrolled using a multiple-stage stratified cluster random sampling method. A questionnaire consisting of demographic characteristics, lifestyle and GERD symptoms (heartburn, regurgitation, chest pain, dysphagia, hoarseness and cough) as completed for each subject. RESULTS: The questionnaire was completed in 717 subjects. The prevalence rate of GERD, defined as reflux occurring at least one time per week in the preceding year, was 33% (237 subjects). The prevalence was higher in older individuals (36.0% vs 28.9%, P 〈 0.05) and in those with other gastrointestinal complaints (51.0% vs 27.8%, P 〈 0.001), but not different in obese and non-obese subjects. It was also higher in those consuming fruits and vegetables more than once a week (36.2% vs 17.3%, P 〈 0.001). GERD had a positive correlation with smoking (42.1% vs 27.8%, P 〈 0.001), but a negative relation with non-alcoholic beverages. The association between GERD and non-steroidal antiinflammatory drugs (NSAIDs) consumption was also significant (40.2% vs 25.4%, P 〈 0.001). CONCLUSION: The prevalence of GERD (33%) is very high in Qashqai migrating nomads which may be due to a lower socioeconomic and educational level of these people and difference in the life style. Older age, frequent consumption of fruits and vegetables, smoking and NSAIDs are risk factors for GERD in this population. 展开更多
关键词 Gastroesophageal reflux disease PREVALENCE Risk factors NOMADS Iran
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