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第711章 器官移植的新突破?(1 / 2)

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话音刚落,白大褂们齐刷刷愣了。

“老大你意思是说……不管什么血型,都用同一种人造红细胞?”纪天和问。

“没错!”宋河点头,“不排除个别熊猫血不适用,但常见血型应该可以通用!”

一片哗然!

白大褂们满脸吃惊,这怎么可能?

有些血型可以混杂,譬如O型血可以输给任何血型,但只能少量,量太大一样出问题。临床上输血,还是以同类血最佳。

而人造血液项目,老大早就明确过,目标是真正大量代替人血的产品,理应生产不同血型,现在却说不需要了,通用?

这怎么能通用呢?

医学……不存在了?

“大家看第一张数据纸,是我从小鼠胃肠道里提取出来的两种酶,做了无死角的检验分析。”宋河讲课。

“一种是脱乙酰酶,一种是半乳糖胺酶,但和传统的同类酶有区别,是全新品种。具体的变化我都放在第二页上了,大家稍后认真看看。”

“我发现这两种酶很挑食,只以血细胞抗原相似的糖作为食物,就试了一下提取出来用在血里,果然有奇效!”

“这两种酶以不同的比例大量输入小鼠血液之后,可以迅速改变小鼠全身血细胞的抗原,迅猛降低不同血型混杂后的凝集反应,我刚刚做了一组,能降大概98%,不出意外的话,这种改变能维持很长一段时间。”

“只要按照不同比例调整两种酶的含量,并和我们人造血里的碳酸脱氢酶捆绑在一起,那么……”

吕承恩听懂了,“所以你的意思是,不需要做不同血型的红细胞,但需要做不同比例的酶,去缓解输血后不良反应?”

“对!”宋河点头。

白大褂们松了口气,原来是文字游戏,还是要造不同类型的人造血,只不过从造不同的红细胞变为造不同的酶,其实也就相当于变相的不同血型。

不过话说回来,这种办法如果真的行得通,从工业制造的角度看,还真省了很多事儿,类似于同样的工序炒几盘菜,最后看客人口味,每盘撒不同的调料包就行了。

调料包酶可以廉价批量生产,无疑会大幅降低人造血这盘菜的成本!

“下面大家有的忙了,一方面做小鼠实验,一方面可以上点人血实验试一试。”宋河说,“小鼠的血型和人类的血型不一样,这方案能不能行得通,取决于咱们能否从人肠道菌群里找到类似的酶。”

白大褂们激动地点头,大家能理解整个思路,无非是把宋河对小鼠做的事情,平移到人类身上,照葫芦画瓢大家还是会的!

科研就是这样,点子最重要,劳动反而很廉价。有时候大量的劳动,只是为了找一个奇妙的点子,数百斤汗水能换来一刹那的灵光一闪,这买卖就值了!

“我有两个问题。”吕承恩眉头紧皱。

“您说。”宋河挥挥手示意大家安静。

“第一个问题,参考人卫版的《生理学》,有关输血的章节。”吕承恩道,“输血要优先考虑的是,不破坏供血者的红细胞,但大量输血之后,也要考虑受血者的红细胞。”

“譬如O型血,自身没有抗原,但有A、B两种抗体,所以输血给其他血型的患者之后,只会引起其他血型红细胞的破坏,不会引起自身的损坏。少量输血的时候,O型血破坏力小,感觉不出来,可以救急。”

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