Baidu
map

能将A型血转为O型血的酶被发现!有望缓解供血短缺

2019-06-19 佚名 中国新闻网

据外媒19日报道,近期,一项发布在《自然?微生物学》杂志上的研究发现,存在于人体肠道中的微生物产生的两种酶,可以将A型血转换成万能的O型血。这一发现可能缓解各医疗机构血液供应不足的情况。据报道,在人类ABO血型系统中,有A型、B型、AB型和O型四种血型。红细胞上仅有抗原A的为A型血,只有抗原B的为B型血,若同时存在A和B抗原的则为AB型血,两者皆无的则为O型血。因为O型血的红血球表面没有A和B型抗

据外媒19日报道,近期,一项发布在《自然?微生物学》杂志上的研究发现,存在于人体肠道中的微生物产生的两种酶,可以将A型血转换成万能的O型血。这一发现可能缓解各医疗机构血液供应不足的情况。

据报道,在人类ABO血型系统中,有A型、B型、AB型和O型四种血型。红细胞上仅有抗原A的为A型血,只有抗原B的为B型血,若同时存在A和B抗原的则为AB型血,两者皆无的则为O型血。因为O型血的红血球表面没有A和B型抗原,因此可以输血给任何一种血型的人,当面临紧急情况时,O型血就是全能输血者。

然而,尽管全球范围内O型血的人口最多,但并不是平均分布的。在有些国家,比如日本,多数人是A型血。因此,为了缓解O型血供应不足的情况,科学家们决定尝试将第二常见的A型血转化为O型血。

经过研究,加拿大英属哥伦比亚大学(UBC)的科学家们发现,一种名为Flavonifractor plautii的肠道细菌能产生两种特殊的酶,同时使用这两种酶可去除红细胞上的抗原A,这样就可以使A型血转化为O型血。

研究人员表示,让A型血转化为O型血有助扩大血液供给,缓解医疗机构普遍面临的血液短缺问题。

目前研究还处于早期研究阶段,研究人员必须继续观察酶是否能清干净A型血红血球表面的所有抗原,还要确认酶是否会改变红血球的其他功能而造成不良影响。

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1678146, encodeId=1fa916e8146f7, content=<a href='/topic/show?id=7df63110d5' target=_blank style='color:#2F92EE;'>#A型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3110, encryptionId=7df63110d5, topicName=A型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Mon Nov 25 08:33:00 CST 2019, time=2019-11-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558435, encodeId=1f0b1558435ee, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1564444, encodeId=5f1615644443d, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1628142, encodeId=198d162814277, content=<a href='/topic/show?id=b19de323897' target=_blank style='color:#2F92EE;'>#短缺#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73238, encryptionId=b19de323897, topicName=短缺)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=288421156589, createdName=liuxiaona, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=368044, encodeId=6bca36804454, content=倡导人们积极无偿献血,形成机制,是当前的解决之道。, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=00501987275, createdName=130****4638, createdTime=Thu Jun 20 06:59:47 CST 2019, time=2019-06-20, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1678146, encodeId=1fa916e8146f7, content=<a href='/topic/show?id=7df63110d5' target=_blank style='color:#2F92EE;'>#A型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3110, encryptionId=7df63110d5, topicName=A型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Mon Nov 25 08:33:00 CST 2019, time=2019-11-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558435, encodeId=1f0b1558435ee, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1564444, encodeId=5f1615644443d, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1628142, encodeId=198d162814277, content=<a href='/topic/show?id=b19de323897' target=_blank style='color:#2F92EE;'>#短缺#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73238, encryptionId=b19de323897, topicName=短缺)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=288421156589, createdName=liuxiaona, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=368044, encodeId=6bca36804454, content=倡导人们积极无偿献血,形成机制,是当前的解决之道。, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=00501987275, createdName=130****4638, createdTime=Thu Jun 20 06:59:47 CST 2019, time=2019-06-20, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1678146, encodeId=1fa916e8146f7, content=<a href='/topic/show?id=7df63110d5' target=_blank style='color:#2F92EE;'>#A型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3110, encryptionId=7df63110d5, topicName=A型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Mon Nov 25 08:33:00 CST 2019, time=2019-11-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558435, encodeId=1f0b1558435ee, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1564444, encodeId=5f1615644443d, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1628142, encodeId=198d162814277, content=<a href='/topic/show?id=b19de323897' target=_blank style='color:#2F92EE;'>#短缺#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73238, encryptionId=b19de323897, topicName=短缺)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=288421156589, createdName=liuxiaona, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=368044, encodeId=6bca36804454, content=倡导人们积极无偿献血,形成机制,是当前的解决之道。, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=00501987275, createdName=130****4638, createdTime=Thu Jun 20 06:59:47 CST 2019, time=2019-06-20, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1678146, encodeId=1fa916e8146f7, content=<a href='/topic/show?id=7df63110d5' target=_blank style='color:#2F92EE;'>#A型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3110, encryptionId=7df63110d5, topicName=A型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Mon Nov 25 08:33:00 CST 2019, time=2019-11-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558435, encodeId=1f0b1558435ee, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1564444, encodeId=5f1615644443d, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1628142, encodeId=198d162814277, content=<a href='/topic/show?id=b19de323897' target=_blank style='color:#2F92EE;'>#短缺#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73238, encryptionId=b19de323897, topicName=短缺)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=288421156589, createdName=liuxiaona, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=368044, encodeId=6bca36804454, content=倡导人们积极无偿献血,形成机制,是当前的解决之道。, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=00501987275, createdName=130****4638, createdTime=Thu Jun 20 06:59:47 CST 2019, time=2019-06-20, status=1, ipAttribution=)]
    2019-06-21 liuxiaona
  5. [GetPortalCommentsPageByObjectIdResponse(id=1678146, encodeId=1fa916e8146f7, content=<a href='/topic/show?id=7df63110d5' target=_blank style='color:#2F92EE;'>#A型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3110, encryptionId=7df63110d5, topicName=A型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Mon Nov 25 08:33:00 CST 2019, time=2019-11-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1558435, encodeId=1f0b1558435ee, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1564444, encodeId=5f1615644443d, content=<a href='/topic/show?id=99ea135e8fa' target=_blank style='color:#2F92EE;'>#O型血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13578, encryptionId=99ea135e8fa, topicName=O型血)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a16e14977467, createdName=doctor-chen9587, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1628142, encodeId=198d162814277, content=<a href='/topic/show?id=b19de323897' target=_blank style='color:#2F92EE;'>#短缺#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73238, encryptionId=b19de323897, topicName=短缺)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=288421156589, createdName=liuxiaona, createdTime=Fri Jun 21 11:33:00 CST 2019, time=2019-06-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=368044, encodeId=6bca36804454, content=倡导人们积极无偿献血,形成机制,是当前的解决之道。, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=00501987275, createdName=130****4638, createdTime=Thu Jun 20 06:59:47 CST 2019, time=2019-06-20, status=1, ipAttribution=)]
    2019-06-20 130****4638

    倡导人们积极无偿献血,形成机制,是当前的解决之道。

    0

相关资讯

刚刚!国家卫生健康委发文 社区医院设置标准定了

基层备受关注的一件大事定了!刚刚,国家卫生健康委下通知,发布社区医院设置标准!6月17日下午,国家卫生健康委发布《关于印发社区医院基本标准和医疗质量安全核心制度要点(试行)的通知》,进一步明确社区医院建设标准。文件透露哪些信息,小社挑重点为大家呈现:一、社区医院挂牌门槛现有社区卫生服务中心和有条件的乡镇卫生院的基础上,医疗服务能力达到一定水平的医疗机构,可以加挂社区医院牌子。社区医院必须具备常见病

每周只需注射一次这种药 显著降低糖尿病心血管风险

据统计,中国目前糖尿病患者数超过1亿人,约30.1%的糖尿病患者合并有心血管事件。在近日举行的美国糖尿病协会第79届科学会议上,一项名为REWIND的临床试验详细数据引起广泛关注。数据显示,糖尿病患者服用度拉糖肽(Trulicity)可将主要心血管事件(MACE,包括心脏病发作、中风和心血管死亡率)风险降低12%。这项研究同时发表在《柳叶刀》杂志上。REWIND是胰高血糖素样肽-1(GLP-1)受

一项临床研究被新闻报道后...

根据一项调查,67%的人有时或经常关注健康新闻。很多人在阅读新闻后还会采取进一步行动,例如搜索更多信息或者与他人讨论。然而,证据显示,很多新闻报道并不能准确反映临床研究的结果,还可能通过歪曲性解释或倾向性陈述而误导读者(英文中称之为“Spin”,倾向性呈现某些信息,尤其是有利的信息,比如过分夸大治疗效果)。对谷歌新闻进行的系统评估显示,88%的新闻报道都有所失真。曲解研究结果,有几种常见类型的“s

3项干预措施,25年,挽救9400万生命!

慢性非传染性疾病(NCDs),尤其是心血管疾病,每年可导致3800万人死亡。证据表明,一些干预措施可以有效预防这些疾病相关死亡,然而,相当一部分人却无法获得这些干预措施。2019年6月10日,《Circulation》杂志在线发表了一项研究,评估了2015-2040年期间,3种影响力高且具有可行性的干预措施对全球NCD死亡率的影响:① 高血压的治疗率提高到70%;② 钠摄入量减少30%;③ 避免摄

FDA将发布指南 影响大批医械!导丝、微创器械、心血管支架......

DA正重新审视对部分植入式器械的监管。6月17日,国家药监局器审中心发文称,近期,美国食品药品管理局(下称“FDA”)负责人和医疗器械与放射健康中心负责人表示,越来越多的数据显示,某些植入式医疗器械中的材料可能会对患者造成伤害,FDA正在努力重新审视该类产品的监管。FDA重点提及以下4类:金属对金属全髋关节置换医疗器械、乳房植入物、医疗器械中的镍钛合金、医疗器械中的动物源材料。同时,FDA计划

四川宜宾6.0级地震 北京四川救援队星夜驰援

6月17日22时55分,四川宜宾市长宁县(北纬28.34度,东经104.90度)发生6.0级地震,并发生多次余震。地震发生之后,国家、四川省各级应急、卫生健康部门紧急组织力量奔赴灾区展开救援。国家卫生健康委于6月18日早派出来自北京多家医院的医疗专家组赶赴灾区驰援。截至6月18日中午,长宁县、珙县医疗机构累计接诊100余名伤员,均得到妥善救治。据央视消息,四川省当地已派出武警、消防、民兵、矿山救护

Baidu
map
Baidu
map
Baidu
map