V p\u0159ekvapiv\u00e9m objevu v\u011bdci v Kalifornii identifikovali nov\u00fd kmen botulotoxinu, zn\u00e1m\u00fd jako BoNT\/H. Je to prvn\u00ed nov\u00fd kmen tohoto toxinu nalezen\u00fd za v\u00edce ne\u017e \u010dty\u0159i desetilet\u00ed. Objev vyvolal zna\u010dn\u00e9 obavy mezi odborn\u00edky na ve\u0159ejn\u00e9 zdrav\u00ed, proto\u017ee BoNT\/H nelze neutralizovat \u017e\u00e1dn\u00fdm ze sou\u010dasn\u00fdch antis\u00e9r.<\/p>\n\n
BoNT\/H je siln\u00fd neurotoxin produkovan\u00fd bakteri\u00ed Clostridium botulinum<\/em>. Podob\u00e1 se jin\u00fdm kmen\u016fm botulotoxinu, ale m\u00e1 jedine\u010dn\u00e9 vlastnosti, kter\u00e9 ho \u010din\u00ed obzvl\u00e1\u0161t\u011b nebezpe\u010dn\u00fdm. BoNT\/H je vysoce odoln\u00fd v\u016f\u010di antitoxin\u016fm, co\u017e znamen\u00e1, \u017ee v sou\u010dasn\u00e9 dob\u011b neexistuje \u00fa\u010dinn\u00e1 l\u00e9\u010dba t\u00e9to formy botulismu.<\/p>\n\n Absence \u00fa\u010dinn\u00e9ho antitoxinu pro BoNT\/H p\u0159edstavuje v\u00e1\u017enou hrozbu pro ve\u0159ejn\u00e9 zdrav\u00ed. Botulismus je paralytick\u00e1 nemoc, kter\u00e1 m\u016f\u017ee v\u00e9st k t\u011b\u017ek\u00e9mu onemocn\u011bn\u00ed a dokonce i smrti. P\u0159\u00edznaky botulismu zahrnuj\u00ed svalovou slabost, pot\u00ed\u017ee s d\u00fdch\u00e1n\u00edm a paral\u00fdzu. V t\u011b\u017ek\u00fdch p\u0159\u00edpadech m\u016f\u017ee botulismus zp\u016fsobit respira\u010dn\u00ed selh\u00e1n\u00ed a smrt.<\/p>\n\n Objev BoNT\/H vzbudil tak\u00e9 obavy ohledn\u011b jeho mo\u017en\u00e9ho zneu\u017eit\u00ed jako biologick\u00e9 zbran\u011b. Botulotoxin je jednou z nejtoxi\u010dt\u011bj\u0161\u00edch l\u00e1tek zn\u00e1m\u00fdch lidstvu a dokonce i mal\u00e9 mno\u017estv\u00ed m\u016f\u017ee b\u00fdt smrteln\u00e9. Pokud by se BoNT\/H dostal do nespr\u00e1vn\u00fdch rukou, mohl by b\u00fdt pou\u017eit k rozs\u00e1hl\u00e9mu po\u0161kozen\u00ed.<\/p>\n\n Botulotoxin m\u00e1 dlouhou historii pou\u017eit\u00ed jako potenci\u00e1ln\u00ed biologick\u00e1 zbra\u0148. V 90. letech se japonsk\u00e1 sekta \u00d3m \u0161inrikj\u00f3 pokusila uvolnit botulotoxin v centru Tokia, ale jej\u00ed \u00fatoky selhaly. Tento incident v\u0161ak zd\u016fraznil potenci\u00e1ln\u00ed hrozbu, kterou botulotoxin p\u0159edstavuje jako biologick\u00e1 zbra\u0148.<\/p>\n\n V\u00fdvoj antitoxinu proti BoNT\/H je slo\u017eit\u00fd a n\u00e1ro\u010dn\u00fd \u00fakol. V\u011bdci pracuj\u00ed na identifikaci jedine\u010dn\u00fdch charakteristik BoNT\/H, kter\u00e9 ho \u010din\u00ed odoln\u00fdm v\u016f\u010di st\u00e1vaj\u00edc\u00edm antitoxin\u016fm. Jakmile budou tyto charakteristiky pln\u011b pochopeny, mohou v\u011bdci za\u010d\u00edt vyv\u00edjet nov\u00e9 antitoxiny, kter\u00e9 budou \u00fa\u010dinn\u00e9 proti BoNT\/H.<\/p>\n\n Objev BoNT\/H vyvolal debatu o rovnov\u00e1ze mezi tajn\u016fstk\u00e1\u0159stv\u00edm a otev\u0159enost\u00ed ve v\u011bdeck\u00e9m v\u00fdzkumu. N\u011bkte\u0159\u00ed tvrd\u00ed, \u017ee podrobnosti o toxinu by m\u011bly b\u00fdt utajeny, aby se zabr\u00e1nilo jeho zneu\u017eit\u00ed. Jin\u00ed se domn\u00edvaj\u00ed, \u017ee otev\u0159enost je nezbytn\u00e1 pro v\u011bdeck\u00fd pokrok a pro zaji\u0161t\u011bn\u00ed toho, aby byla ve\u0159ejnost informov\u00e1na o potenci\u00e1ln\u00edch zdravotn\u00edch rizic\u00edch.<\/p>\n\n Objev BoNT\/H je p\u0159ipom\u00ednkou neust\u00e1le p\u0159\u00edtomn\u00e9 hrozby biologick\u00fdch zbran\u00ed. Je z\u00e1sadn\u00ed, aby v\u011bdci, politici a ve\u0159ejnost spolupracovali na \u0159e\u0161en\u00ed t\u00e9to hrozby a vyvinuli \u00fa\u010dinn\u00e1 protiopat\u0159en\u00ed proti botulotoxinu a dal\u0161\u00edm potenci\u00e1ln\u00edm biologick\u00fdm zbran\u00edm.<\/p>","protected":false},"excerpt":{"rendered":" Objeven nov\u00fd kmen botulismu, p\u0159edstavuje v\u00e1\u017en\u00e9 zdravotn\u00ed riziko Objev BoNT\/H V p\u0159ekvapiv\u00e9m objevu v\u011bdci v Kalifornii identifikovali nov\u00fd kmen botulotoxinu, zn\u00e1m\u00fd jako BoNT\/H. Je to prvn\u00ed nov\u00fd kmen tohoto toxinu…<\/p>\n","protected":false},"author":1,"featured_media":24874,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1763],"tags":[18732,18731,2112,613,5225],"class_list":["post-13915","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biotechnology","tag-bioweapons","tag-botulism","tag-medical-research","tag-scientific-discovery","tag-health-risks"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13915","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=13915"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13915\/revisions"}],"predecessor-version":[{"id":24875,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13915\/revisions\/24875"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media\/24874"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=13915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=13915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=13915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Zdravotn\u00ed rizika<\/h2>\n\n
Mo\u017en\u00e9 zneu\u017eit\u00ed<\/h2>\n\n
Historie botulotoxinu jako biologick\u00e9 zbran\u011b<\/h2>\n\n
V\u00fdzvy ve v\u00fdvoji antitoxinu<\/h2>\n\n
Tajn\u016fstk\u00e1\u0159stv\u00ed a otev\u0159enost<\/h2>\n\n
Z\u00e1v\u011br<\/h2>\n\n