{"id":30740,"date":"2026-03-29T07:49:08","date_gmt":"2026-03-29T07:49:08","guid":{"rendered":"https:\/\/www.europesays.com\/sk\/30740\/"},"modified":"2026-03-29T07:49:08","modified_gmt":"2026-03-29T07:49:08","slug":"pozrite-sa-co-sa-deje-s-vasimi-cievami-medzi-45-a-55-rokom-zivota","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/sk\/30740\/","title":{"rendered":"Pozrite sa, \u010do sa deje s va\u0161imi cievami medzi 45. a 55. rokom \u017eivota"},"content":{"rendered":"

PEKING – Hoci \u010das plynie rovnomerne, starnutie \u013eudsk\u00e9ho tela rozhodne nie je line\u00e1rny proces. Nov\u00fd v\u00fdskum ukazuje, \u017ee na\u0161e telo prech\u00e1dza v\u00fdrazn\u00fdmi zlomov\u00fdmi obdobiami \u2013 a jeden z najz\u00e1sadnej\u0161\u00edch prich\u00e1dza pribli\u017ene okolo 50. roku \u017eivota.<\/p>\n

Pod\u013ea \u0161t\u00fadie publikovanej v \u010dasopise Cell sa pr\u00e1ve v tomto veku tempo starnutia cite\u013ene zr\u00fdch\u013euje. Vedci analyzovali zmeny v prote\u00ednoch naprie\u010d r\u00f4znymi tkanivami \u013eudsk\u00e9ho tela a zistili, \u017ee po p\u00e4\u0165desiatke sa opotrebovanie org\u00e1nov a tkan\u00edv deje r\u00fdchlej\u0161ie ne\u017e v predch\u00e1dzaj\u00facich dek\u00e1dach. V\u00fdskumn\u00edci z Chinese Academy of Sciences uv\u00e1dzaj\u00fa, \u017ee jedn\u00fdm z najzranite\u013enej\u0161\u00edch syst\u00e9mov s\u00fa cievy. Pr\u00e1ve tie patria medzi prv\u00e9, ktor\u00e9 za\u010d\u00ednaj\u00fa starn\u00fa\u0165 v\u00fdraznej\u0161ie, p\u00ed\u0161e port\u00e1l Science Alert<\/a>.<\/p>\n

Vedci sk\u00famali desiatky org\u00e1nov<\/p>\n

Do v\u00fdskumu bolo zahrnut\u00fdch 76 darcov org\u00e1nov vo veku od 14 do 68 rokov. Vedci analyzovali viac ne\u017e 500 vzoriek z 13 r\u00f4znych tkan\u00edv a siedmich telesn\u00fdch syst\u00e9mov \u2013 vr\u00e1tane srdcovo-cievneho, tr\u00e1viaceho, imunitn\u00e9ho \u010di svalov\u00e9ho syst\u00e9mu. Na z\u00e1klade t\u00fdchto d\u00e1t vytvorili detailn\u00fa \u201emapu\u201c prote\u00ednov v tele a sledovali, ako sa ich mno\u017estvo men\u00ed s vekom. Zistili, \u017ee a\u017e 48 prote\u00ednov spojen\u00fdch s ochoreniami sa s prib\u00fadaj\u00facimi rokmi zvy\u0161uje. Ide napr\u00edklad o prote\u00edny s\u00favisiace s:<\/p>\n


\n\tkardiovaskul\u00e1rnymi chorobami
\n\tstukovaten\u00edm pe\u010dene
\n\tfibr\u00f3zou tkan\u00edv
\n\tn\u00e1dorov\u00fdmi ochoreniami <\/p>\n

Najv\u00fdraznej\u0161ie zmeny medzi 45. a 55. rokom<\/p>\n

Najv\u00e4\u010d\u0161ie biologick\u00e9 zmeny zaznamenali vedci pr\u00e1ve v obdob\u00ed medzi 45. a 55. rokom \u017eivota. V tomto \u010dase doch\u00e1dza k v\u00fdraznej prestavbe tkan\u00edv, pri\u010dom najviac postihnut\u00e1 je aorta \u2013 hlavn\u00e1 tepna v tele. Zmeny v\u0161ak neobi\u0161li ani \u010fal\u0161ie org\u00e1ny, napr\u00edklad slezinu \u010di pankreas, ktor\u00fd zohr\u00e1va k\u013e\u00fa\u010dov\u00fa \u00falohu pri tr\u00e1ven\u00ed a regul\u00e1cii horm\u00f3nov.<\/p>\n

\t
\n\t\t\"Starnutie\t\t\t<\/p>\n

\n\t\t\t\tZobrazi\u0165 gal\u00e9riu (2)\t\t\t<\/p>\n

\t<\/a><\/p>\n

\t\u00a0(Zdroj: Getty Images)<\/p>\n

Varovn\u00e9 v\u00fdsledky<\/p>\n

Vedci n\u00e1sledne testovali jeden z prote\u00ednov spojen\u00fdch so starnut\u00edm na my\u0161iach. Po jeho aplikovan\u00ed sa u mlad\u00fdch jedincov prejavili jasn\u00e9 zn\u00e1mky zr\u00fdchlen\u00e9ho starnutia:<\/p>\n


\n\tslab\u0161ia fyzick\u00e1 v\u00fdkonnos\u0165
\n\tni\u017e\u0161ia sila \u00fachopu
\n\thor\u0161ia rovnov\u00e1ha a koordin\u00e1cia <\/p>\n

To nazna\u010duje, \u017ee niektor\u00e9 biologick\u00e9 procesy starnutia mo\u017eno sp\u00fa\u0161\u0165aj\u00fa konkr\u00e9tne molekul\u00e1rne mechanizmy.<\/p>\n

Starnutie prebieha v \u201evln\u00e1ch\u201c<\/p>\n

Zauj\u00edmavos\u0165ou je, \u017ee nejde o jedin\u00fd zlomov\u00fd bod. Predch\u00e1dzaj\u00face v\u00fdskumy identifikovali \u010fal\u0161ie \u201evrcholy\u201c starnutia okolo 44 a 60 rokov. Ka\u017ed\u00fd z nich s\u00favis\u00ed s in\u00fdmi zmenami v tele \u2013 od metabolizmu a\u017e po funkciu imunitn\u00e9ho syst\u00e9mu. Vedci veria, \u017ee lep\u0161ie pochopenie toho, ako jednotliv\u00e9 org\u00e1ny starn\u00fa, m\u00f4\u017ee pom\u00f4c\u0165 vyvin\u00fa\u0165 cielen\u00e9 lie\u010dby. Tie by mohli spomali\u0165 proces starnutia alebo zmierni\u0165 jeho d\u00f4sledky. V\u00fdsledky \u0161t\u00fadie tak otv\u00e1raj\u00fa dvere k personalizovanej medic\u00edne, ktor\u00e1 by sa zameriavala na konkr\u00e9tne org\u00e1ny a f\u00e1zy \u017eivota \u2013 s cie\u013eom pred\u013a\u017ei\u0165 zdrav\u00e9 fungovanie tela aj vo vy\u0161\u0161om veku.<\/p>\n","protected":false},"excerpt":{"rendered":"PEKING – Hoci \u010das plynie rovnomerne, starnutie \u013eudsk\u00e9ho tela rozhodne nie je line\u00e1rny proces. Nov\u00fd v\u00fdskum ukazuje, \u017ee…\n","protected":false},"author":2,"featured_media":30741,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[33,43,40,42,36,3515,50,10885,2212,49,48,463],"class_list":{"0":"post-30740","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-svet","8":"tag-news","9":"tag-sk","10":"tag-slovak","11":"tag-slovencina","12":"tag-spravy","13":"tag-starnutie","14":"tag-svet","15":"tag-veda","16":"tag-vek","17":"tag-world","18":"tag-world-news","19":"tag-zdravie"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@sk\/116311370253307295","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/30740","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/comments?post=30740"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/posts\/30740\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media\/30741"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/media?parent=30740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/categories?post=30740"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/sk\/wp-json\/wp\/v2\/tags?post=30740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}