{"id":1380,"date":"2020-11-06T13:37:58","date_gmt":"2020-11-06T11:37:58","guid":{"rendered":"http:\/\/saptamina.md\/?p=1380"},"modified":"2020-11-06T13:37:58","modified_gmt":"2020-11-06T11:37:58","slug":"unele-vaccinuri-anti-covid-19-ar-spori-vulnerabilitatea-la-hiv","status":"publish","type":"post","link":"https:\/\/saptamana.md\/index.php\/2020\/11\/06\/unele-vaccinuri-anti-covid-19-ar-spori-vulnerabilitatea-la-hiv\/","title":{"rendered":"Unele vaccinuri anti-COVID-19 ar spori vulnerabilitatea la HIV"},"content":{"rendered":"<p><strong>Pe m\u0103sur\u0103 ce pandemia de coronavirus continu\u0103, valuri de infec\u021bii ating propor\u021bii \u00eengrijor\u0103toare \u0219i tot mai mul\u021bi oameni \u00eei pierd pe cei dragi. Indiferent de cum a ales fiecare \u021bar\u0103 s\u0103 lupte cu aceast\u0103 pandemie, economiile s\u00eent chinuite \u0219i tot mai mul\u021bi oameni \u00ee\u0219i pierd afacerile.<\/strong><\/p>\n<p>\u00cens\u0103, un grup de cercet\u0103tori a avertizat c\u0103 cel pu\u021bin patru din poten\u021bialele vaccinuri folosite \u00een studiile clinice actuale con\u021bin o component\u0103 care ar putea cre\u0219te riscul oamenilor de a contracta HIV.<\/p>\n<p>Unul dintre aceste poten\u021biale\u00a0vaccinuri\u00a0a trecut de faza a doua de testare \u00een august \u0219i este pe cale s\u0103 intre \u00een faza a treia \u00een Rusia \u0219i Pakistan.<\/p>\n<p>Avertismentul vine de la oameni de \u0219tiin\u021b\u0103 de la Universitatea din California care coordoneaz\u0103 cercet\u0103rile privind prevenirea HIV. Cercet\u0103torii au v\u0103zut cu ochii lor aceast\u0103 problem\u0103 \u00een timp ce \u00eencercau s\u0103 dezvolte un vaccin pentru HIV. Spre \u00eengrijorarea lor, cel mai promi\u021b\u0103tor vaccin-candidat pentru HIV, dup\u0103 20 de ani de cercet\u0103ri, a dat gre\u0219, astfel c\u0103 unii pacien\u021bi au devenit mai vulnerabili \u00een fa\u021ba bolii. Savan\u021bii\u00a0 s\u00eent \u00eengrijora\u021bi c\u0103 folosirea unui vector Ad5 pentru imunizare contra SARS-CoV-2 ar putea cre\u0219te \u00een mod similar riscul contract\u0103rii HIV-1 \u00een r\u00eendul b\u0103rba\u021bilor care primesc vaccinul.<\/p>\n<p>Vaccinurile necesit\u0103 un fel de \u201evehicul\u201d pentru a le transporta \u00een locurile care trebuie. Acest \u201evehicul\u201d este numit vector \u0219i este componenta vaccinului care \u00eei \u00eengrijoreaz\u0103 pe cercet\u0103tori.<\/p>\n<p>Mai multe vaccinuri-candidate folosesc adenovirusuri drept vectori. Spre exemplu, \u00eentr-un studiu, un adenovirus modificat genetic este folosit pentru a livra codul genetic al proteinelor S ale coronavirusului astfel \u00eenc\u00eet sistemul nostru imunitar s\u0103 \u00eenve\u021be s\u0103 recunoasc\u0103 aceast\u0103 protein\u0103 \u0219i SARS-COV-2 drept invadatori.<\/p>\n<p>Adenovirusurile s\u00eent de obicei inofensive \u00een afara faptului c\u0103 pot cauza r\u0103celi, iar alte vaccinuri au folosit cu succes diferite versiuni modificate ale adenovirusurilor f\u0103r\u0103 vreo dovad\u0103 a cre\u0219terii riscului contract\u0103rii HIV.<\/p>\n<p>\u00cens\u0103, patru vaccinuri-candidate folosesc vectorul Ad5 (recombinant adenovirus type-5), aceasta fiind componenta care a cauzat probleme pentru oamenii de \u0219tiin\u021b\u0103.<\/p>\n<p>Vestea bun\u0103 este c\u0103 \u00eentreaga comunitate \u0219tiin\u021bific\u0103 are \u00een vedere \u0219i analizeaz\u0103 acest risc, o astfel de reac\u021bie advers\u0103 put\u00eend fi evaluat\u0103 cel mai bine \u00een timpul studiilor clinice. Odat\u0103 ce vaccinurile trec de studiile clinice s\u00eent considerate sigure. Echipe de cercet\u0103tori din \u00eentreaga lume lucreaz\u0103 din greu pentru a se asigura c\u0103 dezvoltarea vaccinului \u00eempotriva COVID-19 decurge conform planului.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pe m\u0103sur\u0103 ce pandemia de coronavirus continu\u0103, valuri de infec\u021bii ating propor\u021bii \u00eengrijor\u0103toare \u0219i tot&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"featured_image_urls":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":"","covernews-slider-full":"","covernews-slider-center":"","covernews-featured":"","covernews-medium":"","covernews-medium-square":""},"author_info":{"display_name":"SAPTAMANA.md","author_link":"https:\/\/saptamana.md\/index.php\/author\/saptamana-md\/"},"category_info":"<a href=\"https:\/\/saptamana.md\/index.php\/category\/coronavirus\/\" rel=\"category tag\">Coronavirus<\/a>","tag_info":"Coronavirus","comment_count":"0","_links":{"self":[{"href":"https:\/\/saptamana.md\/index.php\/wp-json\/wp\/v2\/posts\/1380"}],"collection":[{"href":"https:\/\/saptamana.md\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/saptamana.md\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/saptamana.md\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/saptamana.md\/index.php\/wp-json\/wp\/v2\/comments?post=1380"}],"version-history":[{"count":0,"href":"https:\/\/saptamana.md\/index.php\/wp-json\/wp\/v2\/posts\/1380\/revisions"}],"wp:attachment":[{"href":"https:\/\/saptamana.md\/index.php\/wp-json\/wp\/v2\/media?parent=1380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/saptamana.md\/index.php\/wp-json\/wp\/v2\/categories?post=1380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/saptamana.md\/index.php\/wp-json\/wp\/v2\/tags?post=1380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}