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罗布红麻根的临床应用 总被引:3,自引:0,他引:3
对近年来罗布麻根的临床应用研究进行综述,为其资源开发提供科学依据。 相似文献
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Wei-feng SHI Zhong ZHANG Lei PENG Yan-zhou ZHANG Bin LIU Chao-dong ZHU 《Virologica Sinica》2007,22(5):405-411
Phylogenetic methods have been widely used to detect the evolution of influenza viruses.However,previous phylogenetic studies of influenza viruses do not make full use of the genetic information at the protein level and therefore cannot distinguish the subtle differences among viral genes.Proteotyping is a new approach to study influenza virus evolution.It aimed at mining the potential genetic information of the viral gene at the protein level by visualizing unique amino acid signatures(proteotypes).Neuraminidase gene fragments of some H5N1 avian influenza viruses were used as an example to illustrate how the proteotyping method worked.Bayesian analysis confirmed that the NA gene tree was mainly divided into three lineages.The NA proteotype analysis further suggested there might be multiple proteotypes within these three lineages and even within single genotypes.At the same time,some proteotypes might even involve more than one genotype.In particular,it also discovered some amino acids of viruses of some genotypes might co-reassort.All these results proved this approach could provide additional information in contrast to results from standard phylogenetic tree analysis. 相似文献
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<正>经常乏力、面色苍白、容易感冒、指甲变薄、头发无光泽……在我们周围有不少人都会出现这样的现象,用民间说法就是"体虚"。其实,这很有可能是由于缺铁性贫血导致的症状。在铁性贫血病人中有很多是育龄期妇女,其中有些患者最后查出来是子宫肌瘤、胃癌、肠癌等肿瘤性疾病。由于不少人贫血的早期症状不是很明显,老百姓往往认为是"体虚",而不引起重视。在实际病例中经常有 相似文献