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发表于 2015-9-17 12:26:34
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本帖最后由 ms003 于 2015-9-17 12:34 编辑
Rojjer发表于 2008-6-1 21:09
现在的媒体呀,报道什么,“最”字当先!给研究人员造成很大压力!
这个也不算最新研究表明了吧!以前也有报道,在小鼠上也有研究:
灭活卡介苗对哮喘小鼠治疗作用及机制探讨
张先华[1] 李云[1] 杨于嘉[2] [1]湖南省人民医院儿科,湖南长沙410005 [2]中南大学湘雅医院儿科,湖南长沙410005
大体机制可能是灭活卡介苗可能与调节Th1/Th2型细胞因子平衡、重建Th1免疫反应及抑制Th2免疫反应有关。
BCG本身就是可以作为佐剂之用!
当然这次这些科研人员把剂量和接种时间都摸索出来了确实是个突破!可喜可贺![
Neonatal BCG vaccination prevents allergic airway responses in miceLast Updated: 2008-05-06 15:48:30 -0400 (Reuters Health)
NEW YORK (Reuters Health) - Neonatal vaccination with Bacillus Calmette-Guerin (BCG) provides long-term protection from allergic responses in mice, according to investigators in China.
Previous studies have shown that BCG can inhibit allergic airway eosinophilia and airway hyperresponsiveness in animal models of asthma, the authors explain, but whether neonatal BCG vaccination can modulate allergic airway inflammation in aged animals is not clear.
Dr. Huahao Shen from Second Hospital of Medical School of Zhejiang University, Hangzhou, and colleagues characterized airway inflammation and allergen-specific T-cell responses in mice vaccinated as neonates with BCG and later sensitized and then challenged at various life stages with ovalbumin.
BCG vaccination inhibited ovalbumin-induced airway hyperresponsiveness and airway eosinophilia in early- and late-challenged mice, the authors report in the May issue of Allergy.
Vaccination inhibited mucus overproduction in early-challenged mice but not in asthmatic and aged mice, the report indicates.
BCG immunization shifted the dominant ovalbumin-specific Th2 responses to Th1 responses in younger mice, but not in aged asthmatic mice, the investigators say.
"Our data are consistent with the notion that neonatal vaccination with BCG induces Th1 responses, which subsequently inhibit allergen-specific Th2 responses, leading to the attenuation of allergic airway inflammation," the authors conclude.
"These novel findings suggest that other mechanism(s) may underlie the long-lasting protection of BCG vaccination in aged mice," the researchers add. "Our findings provide a basis for the design of new strategies for the prevention and intervention in human
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