末日细菌入血夺命?——中药必杀
[b]一、NDM-1(New Delhi metallo-β-lactamase 1)[/b]今天国内外媒体报道了超级细菌NDM-1(酶),这是据《柳叶刀》2010年8月11日期刊中论文引发的媒体热门话题,见附录。/F`gVYK0bZ2m
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NDM-1是按新德里命名的超级细菌,New Delhi metallo-β-lactamase 1,直译被翻译成“新德里金属-β-内酰胺酶1 ”(Metallo=金属??),印度昨天就这个命名提出抗议。香港台湾媒体,将其称为“入血夺命”、“末日细菌”。
[b]二、阻断变异的通俗原理[/b]
细菌的变异是随机的,适者生存而繁殖。单用一种抗生素或防腐剂,变异概率为万分之一的话,合理联用抗生素或防腐剂,可以使变异概率为万分之一的N次方,即是多通道下就可以让微生物无可适从,而不伤人体。这也是万古霉素的原理。*j.fE,pD'Q
举个例子让非专业会员理解一下:比如,置人类于一定高温下,部分人类可以逐渐适应;置人类在高污染微毒环境下,部分人类可以逐渐适应;置人类于高大气压下,部分人类可以逐渐适应;置人类于低氧环境下,部分人类可以逐渐适应;置人类于食源变性下生存(难以消化),部分人类可以逐渐适应。但是,上述5个通道同时启动,或轮流启动,人类适应的概率就接近于0。/ZO:O-Gghl
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[b]三、从食品防腐说起[/b]
食品生产最重要是防腐,不会防腐不用谈食品商品生产。所以本人毕业第一件事,就是灭杀或利用微生物,至今10年。食品分析中,定量分析是非常初级的东西,学不会混沌看待一个系统,在现代食品开发中,永远停留在无法创新的层次。
这些年有些同专业校友认为,传统食品无法定量,所以是不可开发的,确实让人晕倒。这也是全球,特别是中国,滥用食品添加剂的根源之一:流于定量,不懂联用,不懂利用天然资源。
[b]四、综述[/b]
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同理,万古霉素不过是3通道,而中医一张药方就存在N通道。之前各种超级细菌,近年在体外单味实验中,已经证实中药可以明显抑制,最简单如黄连之类。
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万物相生相克是高深莫测的奥义,因为地球上不外就是那些原子的“拼图”。所以,西医西药就是现代医学,中医中药就不是现代医学,本人不敢苟同,日本以甘草防治HIV,中国呢?
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所以,在本人的食品科学专业的角度上,末日细菌入血夺命简直是低级说法,我肯定:中药必杀,如同达菲。 附录:Emergence of a new antibiotic resistance mechanism in India, Pakistan, and the UK: a molecular, biological, and epidemiological study\\^ A/O J
原文地址:[url]http://www.thelancet.com/journals/laninf/article/PIIS1473-3099(10)70143-2/fulltext[/url]F]$]v*gllKt%H
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摘要:(Background)
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Gram-negative Enterobacteriaceae with resistance to carbapenem conferred by New Delhi metallo-β-lactamase 1 (NDM-1) are potentially a major global health problem. We investigated the prevalence of NDM-1, in multidrug-resistant Enterobacteriaceae in India, Pakistan, and the UK.q)FhD9F[;} w\zFI
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Methods
Enterobacteriaceae isolates were studied from two major centres in India—Chennai (south India), Haryana (north India)—and those referred to the UK's national reference laboratory. Antibiotic susceptibilities were assessed, and the presence of the carbapenem resistance gene blaNDM-1 was established by PCR. Isolates were typed by pulsed-field gel electrophoresis of XbaI-restricted genomic DNA. Plasmids were analysed by S1 nuclease digestion and PCR typing. Case data for UK patients were reviewed for evidence of travel and recent admission to hospitals in India or Pakistan.
Findings
We identified 44 isolates with NDM-1 in Chennai, 26 in Haryana, 37 in the UK, and 73 in other sites in India and Pakistan. NDM-1 was mostly found among Escherichia coli (36) and Klebsiella pneumoniae (111), which were highly resistant to all antibiotics except to tigecycline and colistin. K pneumoniae isolates from Haryana were clonal but NDM-1 producers from the UK and Chennai were clonally diverse. Most isolates carried the NDM-1 gene on plasmids: those from UK and Chennai were readily transferable whereas those from Haryana were not conjugative. Many of the UK NDM-1 positive patients had travelled to India or Pakistan within the past year, or had links with these countries.:v}U6v4vBU z2r
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The potential of NDM-1 to be a worldwide public health problem is great, and co-ordinated international surveillance is needed.IL{A2PG3Q
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European Union, Wellcome Trust, and Wyeth. 这跟多种抗生素联合使用有多大差别呢?除了可以用到一些中药中存在但西医尚未开发的天然抗生素以外... [b] [url=http://www.21cma.net/redirect.php?goto=findpost&pid=63011&ptid=8061]3#[/url] [i]r6144[/i] [/b]ge W3j Iz
不只是中药未知领域,整个生物系统都存在许许多多的未知领域 呵呵 这个事还没完
今天新闻又有报道了 说这篇文章的真实性也存在可疑)sN]v]
呵呵 骑驴看唱本 走着瞧~~ 牛皮不是这么吹的。抗生素没出现前,怎么没见中医为降低中国人的死亡率作出贡献?
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[quote]一、NDM-1(New Delhi metallo-β-lactamase 1)n e(AJb0G x^
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今天国内外媒体报道了超级细菌NDM-1(酶),这是据《柳叶刀》2010年8月11日期刊中论文引发的媒体热门话题,见附录。
NDM-1是按新德里命名的超级细菌,New ...
[size=2][color=#999999]通灵草 发表于 2010-8-13 19:31[/color] [url=http://www.21cma.net/redirect.php?goto=findpost&pid=63008&ptid=8061][img]http://www.21cma.net/images/common/back.gif[/img][/url][/size][/quote] [b] [url=http://www.21cma.net/redirect.php?goto=findpost&pid=63151&ptid=8061]6#[/url] [i]steal[/i] [/b]2f,Lk^+`\H2K|'V
这种说法比较激动,不能证明什么吧?反过来,说你吹牛皮行不?——用中医时怎么不见汉族灭族,反而人口众多?.dGK2Y'\C)f
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近年两次大型病毒流行,卫生部都写入中医,难道也是吹牛皮? 没有实证妄下论断,罔顾事实,这就是吹牛皮。&irU[ P/FT
中医中药在面临传染病的时候远不如抗生素作用巨大,这是有据可查的事实。
别的不说,抗生素的出现与世界人口死亡率的急剧下降完全拟合。
