\u013dudsk\u00e9 telo je zlo\u017een\u00e9 z obrovsk\u00e9ho po\u010dtu buniek, pri\u010dom vedci odhaduj\u00fa, \u017ee ich je pribli\u017ene 37 bili\u00f3nov. Aj napriek rovnakej genetickej inform\u00e1cii, nie s\u00fa v\u0161etky bunky v na\u0161om tele rovnak\u00e9, ale \u0161pecializuj\u00fa sa do viacer\u00fdch podtypov, ako s\u00fa napr\u00edklad biele, \u010di \u010derven\u00e9 krvinky, svalov\u00e9 bunky alebo bunky imunitn\u00e9ho syst\u00e9mu. Ka\u017ed\u00e1 skupina buniek je charakteristick\u00e1 \u0161pecifick\u00fdmi funkciami, medzi ktor\u00e9 patr\u00ed napr\u00edklad ochrana tela pred r\u00f4znymi patog\u00e9nmi (v\u00edrusy, bakt\u00e9rie alebo parazity), ako aj regul\u00e1cia metabolizmu, \u010di tvorba energie. V zdrav\u00fdch bunk\u00e1ch taktie\u017e doch\u00e1dza k regul\u00e1cii delenia a v pr\u00edpade, ak s\u00fa opotrebovan\u00e9 alebo po\u0161koden\u00e9, zomieraj\u00fa a na ich miesto prich\u00e1dzaj\u00fa nov\u00e9 bunky.<\/p>\n\n\n\n
Slovom \u201erakovina\u201c ozna\u010dujeme s\u00fahrnne mnoho typov n\u00e1dorov\u00fdch ochoren\u00ed, ktor\u00e9 sa delia na z\u00e1klade miesta vzniku v na\u0161om tele. Rakovina sa za\u010d\u00edna rozv\u00edja\u0165 v momente, ke\u010f sa zdrav\u00e1 bunka zmen\u00ed na tzv. rakovinov\u00fa. K tejto premene doch\u00e1dza d\u00f4sledkom viacer\u00fdch mut\u00e1ci\u00ed v k\u013e\u00fa\u010dov\u00fdch oblastiach na\u0161ej DNA<\/a>. Najcharakteristickej\u0161\u00edm znakom rakovinov\u00fdch buniek je ich schopnos\u0165 nekontrolovane sa deli\u0165, \u010do v kone\u010dnom d\u00f4sledku sp\u00f4sobuje rast n\u00e1doru. <\/p>\n\n\n\n Ako u\u017e bolo povedan\u00e9 vy\u0161\u0161ie, rakovina sa za\u010d\u00edna rozv\u00edja\u0165 po viacer\u00fdch mut\u00e1ci\u00e1ch v na\u0161ej DNA. Ku vzniku t\u00fdchto mut\u00e1ci\u00ed m\u00f4\u017eu prispieva\u0165 nasledovn\u00e9 faktory:<\/p>\n\n\n\n Riziko rozvoja n\u00e1dorov\u00e9ho ochorenia je ovplyvnen\u00e9 samozrejme aj na\u0161\u00edm \u017eivotn\u00fdm \u0161t\u00fdlom. Na zn\u00ed\u017eenie rizika preto m\u00f4\u017eete podnikn\u00fa\u0165 nasledovn\u00e9 kroky:<\/p>\n\n\n\n Faj\u010denie je vo v\u0161eobecnosti nezdrav\u00e9 a okrem in\u00fdch zdravotn\u00fdch probl\u00e9mov prispieva aj k riziku rozvoja mnoh\u00fdch n\u00e1dorov\u00fdch ochoren\u00ed, ako je napr\u00edklad rakovina p\u013e\u00fac, hrtana, pankreasu alebo obli\u010diek.<\/p>\n\n\n\n V z\u00e1vislosti od prijat\u00e9ho mno\u017estva alkoholu sa zvy\u0161uje riziko viacer\u00fdch typov n\u00e1dorov\u00fdch ochoren\u00ed, ako je napr\u00edklad rakovina prsn\u00edka, hrub\u00e9ho \u010dreva alebo pe\u010dene.<\/p>\n\n\n\n Dbajte na pestr\u00fa a vyv\u00e1\u017een\u00fa stravu, v\u010faka \u010domu m\u00f4\u017eete pred\u00eds\u0165 obezite, \u010do je v\u00e1\u017eny zdravotn\u00fd probl\u00e9m, ktor\u00fd okrem in\u00e9ho prispieva aj k riziku rozvoja n\u00e1dorov\u00fdch ochoren\u00ed.<\/p>\n\n\n\n Pravideln\u00e1 fyzick\u00e1 aktivita v\u00e1m pom\u00f4\u017ee udr\u017ea\u0165 si zdrav\u00fa hmotnos\u0165, v\u010faka \u010domu si m\u00f4\u017eete zn\u00ed\u017ei\u0165 riziko rozvoja n\u00e1dorov\u00fdch ochoren\u00ed, ako je napr\u00edklad rakovina prsn\u00edka alebo prostaty.<\/p>\n\n\n\n Nevyh\u00fdbajte sa v\u0161ak slnku \u00faplne, preto\u017ee si v\u010faka nemu na\u0161e telo dok\u00e1\u017ee tvori\u0165 ve\u013emi d\u00f4le\u017eit\u00fd vitam\u00edn D. Slnko v\u0161ak m\u00f4\u017ee ma\u0165 bez dostato\u010dnej ochrany aj ve\u013emi negat\u00edvne \u00fa\u010dinky, a to pr\u00e1ve kv\u00f4li UV \u017eiareniu, ktor\u00e9 je schopn\u00e9 sp\u00f4sobova\u0165 mut\u00e1cie v na\u0161ej DNA. To samozrejme zvy\u0161uje riziko rozvoja melan\u00f3mu, ktor\u00fd sa naj\u010dastej\u0161ie vyskytuje na ko\u017ei, av\u0161ak m\u00f4\u017ee sa vyskytn\u00fa\u0165 kdeko\u013evek na tele, vr\u00e1tane napr\u00edklad oka. Ko\u017eu si preto chr\u00e1\u0148te kvalitn\u00fdmi opa\u013eovac\u00edmi kr\u00e9mami s vysok\u00fdm ochrann\u00fdm faktorom a o\u010di si chr\u00e1\u0148te kvalitn\u00fdmi slne\u010dn\u00fdmi okuliarmi s UV filtrom. <\/p>\n\n\n\n \u00c1no, k riziku rozvoja ur\u010dit\u00fdch n\u00e1dorov\u00fdch ochoren\u00ed prispievaj\u00fa aj v\u00edrusov\u00e9 infekcie, ktor\u00fdm sa d\u00e1 pred\u00eds\u0165 prostredn\u00edctvom jedn\u00e9ho z najv\u00fdznamnej\u0161\u00edch objavov v oblast\u00ed medic\u00edny \u2013 o\u010dkovan\u00edm. Napr\u00edklad o\u010dkovan\u00edm proti v\u00edrusu hepatit\u00eddy B si m\u00f4\u017eete zn\u00ed\u017ei\u0165 riziko rozvoja rakoviny pe\u010dene a \u017eeny si o\u010dkovan\u00edm proti \u013eudsk\u00e9mu papilomav\u00edrusu m\u00f4\u017eu zn\u00ed\u017ei\u0165 riziko rozvoja rakoviny kr\u010dka maternice.<\/p>\n\n\n\n Genetick\u00e9 predispoz\u00edcie<\/a> s\u00fa zodpovedn\u00e9 len za mal\u00e9 percento v\u0161etk\u00fdch pr\u00edpadov rakoviny. Av\u0161ak ke\u010f sa u\u017e vo va\u0161ej DNA tak\u00e1to predispoz\u00edcia vyskytne, \u010dastokr\u00e1t to mnohon\u00e1sobne zvy\u0161uje riziko vzniku dan\u00e9ho typu n\u00e1dorov\u00e9ho ochorenia. Tak\u00e9to genetick\u00e9 predispoz\u00edcie s\u00fa zo svojej podstaty dedi\u010dn\u00e9, \u010do znamen\u00e1, \u017ee poznanie rodinnej hist\u00f3rie v\u00e1m m\u00f4\u017ee pom\u00f4c\u0165 tak\u00e9to riziko odhali\u0165. Samozrejme, nie je to pravidlom, ke\u010f\u017ee tak\u00e9to mut\u00e1cie sa m\u00f4\u017eu vyskytn\u00fa\u0165 a\u017e u v\u00e1s, tzv. \u201ede novo<\/em>\u201c. V\u010faka n\u00e1\u0161mu DNA testu m\u00f4\u017eete odhali\u0165 potenci\u00e1lne nebezpe\u010dn\u00e9 genetick\u00e9 predispoz\u00edcie, v\u010faka \u010domu si m\u00f4\u017eete nastavi\u0165 tak\u00e9 formy prevencie, ktor\u00fdmi si m\u00f4\u017eete zn\u00ed\u017ei\u0165 riziko vzniku n\u00e1dorov\u00e9ho ochorenia, pr\u00edpadne ho v\u010das odhali\u0165 \u2013 \u010do je pre \u00faspe\u0161n\u00e9 vylie\u010denie k\u013e\u00fa\u010dov\u00e9.<\/p>\n\n\n\n Av\u0161ak aj v pr\u00edpade dokonal\u00e9ho \u017eivotn\u00e9ho \u0161t\u00fdlu hroz\u00ed, \u017ee sa v na\u0161om tele po\u010das \u017eivota rozvinie nejak\u00fd typ n\u00e1dorov\u00e9ho ochorenia. Na pochopenie tzv. faktora n\u00e1hody si mus\u00edme predstavi\u0165 jedn\u00e9ho ve\u013emi d\u00f4le\u017eit\u00e9ho hr\u00e1\u010da v na\u0161om tele \u2013 tzv. DNA polymer\u00e1zu. DNA polymer\u00e1za je enz\u00fdm, ktor\u00fd m\u00e1 na starosti skop\u00edrovanie DNA pri ka\u017edom jednom delen\u00ed bunky v na\u0161om tele (pribli\u017ene 2 bili\u00f3ny za de\u0148). Pri ka\u017edom tomto delen\u00ed mus\u00ed DNA polymer\u00e1za skop\u00edrova\u0165 cel\u00fa DNA, ktor\u00e1 sa vo v\u00e4\u010d\u0161ine na\u0161ich buniek sklad\u00e1 z pribli\u017ene 6 mili\u00e1rd p\u00e1rov nukleotidov, ktor\u00e9 v\u00e4\u010d\u0161ina z v\u00e1s pozn\u00e1 pod skratkami A, G, C a T. Enz\u00fdm DNA polymer\u00e1za v\u0161ak nie je bezchybn\u00fd. Pri ka\u017edom jednom delen\u00ed bunky sprav\u00ed tento enz\u00fdm po\u010das kop\u00edrovania DNA mnoho ch\u00fdb. Samozrejme, na\u0161e bunky s\u00fa na to dostato\u010dne pripraven\u00e9 a maj\u00fa opravn\u00e9 mechanizmy, ktor\u00fdmi si tieto chyby vedia opravi\u0165. Av\u0161ak ani t\u00e1to oprava nie je dokonal\u00e1 a ob\u010das sa stane, \u017ee chybne zaraden\u00e1 \u201es\u00fa\u010diastka\u201c nie je opraven\u00e1 a vznik\u00e1 mut\u00e1cia. \u0160anca, \u017ee vznikn\u00fa tak\u00e9 mut\u00e1cie, ktor\u00e9 postupne ved\u00fa k premene zdravej bunky na rakovinov\u00fa, sa samozrejme zvy\u0161uje s vekom. <\/p>\n\n\n\n Z vy\u0161\u0161ie uveden\u00e9ho jednozna\u010dne vypl\u00fdvaj\u00fa odpovede na ot\u00e1zky, pre\u010do rakovine nevieme zabr\u00e1ni\u0165 \u00faplne, pre\u010do rakovina vznik\u00e1 naj\u010dastej\u0161ie na miestach, kde sa delia bunky vo v\u00e4\u010d\u0161ej miere a pre\u010do sa naj\u010dastej\u0161ie rakovina rozvinie a\u017e neskor\u0161om veku. <\/p>\n\n\n\n Netreba v\u0161ak prepada\u0165 panike, v dne\u0161nej dobe v\u010faka pokro\u010dil\u00e9mu vedeck\u00e9mu v\u00fdskumu a \u0161pi\u010dkovej medic\u00edne dok\u00e1\u017eeme ve\u013emi efekt\u00edvne lie\u010di\u0165 mnoh\u00e9 typy n\u00e1dorov\u00fdch ochoren\u00ed. Na to v\u0161ak nesmieme zabudn\u00fa\u0165 na jednu vec \u2013 treba ju zachyti\u0165 v\u010das.<\/strong> V\u010dasn\u00e1 diagnostika n\u00e1dorov\u00e9ho ochorenia je toti\u017e k\u013e\u00fa\u010dov\u00e1 pre nav\u00fd\u0161enie \u0161ance na \u00faspe\u0161n\u00fa lie\u010dbu. Aj pri tomto n\u00e1m v\u0161ak rakovina nepom\u00e1ha, preto\u017ee mnohokr\u00e1t o nej v po\u010diato\u010dn\u00fdch \u0161t\u00e1di\u00e1ch absol\u00fatne netu\u0161\u00edme. Preto prich\u00e1dza do \u00favahy jedin\u00e1 mo\u017enos\u0165 ako zv\u00fd\u0161i\u0165 \u0161ance, \u017ee ju zachyt\u00edme v\u010das, a tou je absolvova\u0165 prevent\u00edvne prehliadky u lek\u00e1ra.<\/p>\n\n\n\n Zdroje<\/strong><\/p>\n\n\n\n \u013dudsk\u00e9 telo je zlo\u017een\u00e9 z obrovsk\u00e9ho po\u010dtu buniek, pri\u010dom vedci odhaduj\u00fa, \u017ee ich je pribli\u017ene 37 bili\u00f3nov. Aj napriek rovnakej genetickej inform\u00e1cii, nie s\u00fa v\u0161etky bunky v na\u0161om tele rovnak\u00e9, ale \u0161pecializuj\u00fa sa do viacer\u00fdch podtypov, ako s\u00fa napr\u00edklad biele, \u010di \u010derven\u00e9 krvinky, svalov\u00e9 bunky alebo bunky imunitn\u00e9ho syst\u00e9mu. Ka\u017ed\u00e1 skupina buniek je charakteristick\u00e1 \u0161pecifick\u00fdmi […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[58,59,60,63],"place-taxonomy":[],"class_list":["post-2448","post","type-post","status-publish","format-standard","hentry","category-uncategorized-sk","tag-dna-analyza","tag-dna-test","tag-genetika","tag-zaujimavosti"],"acf":[],"views":2259,"_links":{"self":[{"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/posts\/2448","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/comments?post=2448"}],"version-history":[{"count":1,"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/posts\/2448\/revisions"}],"predecessor-version":[{"id":1352411,"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/posts\/2448\/revisions\/1352411"}],"wp:attachment":[{"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/media?parent=2448"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/categories?post=2448"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/tags?post=2448"},{"taxonomy":"place-taxonomy","embeddable":true,"href":"https:\/\/dnaera.com\/ro\/wp-json\/wp\/v2\/place-taxonomy?post=2448"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Faktory prostredia <\/h2>\n\n\n\n
Faj\u010denie<\/h4>\n\n\n\n
Pr\u00edjem alkoholu<\/h4>\n\n\n\n
Zdrav\u00e9 stravovanie<\/h4>\n\n\n\n
Pravideln\u00e1 fyzick\u00e1 aktivita<\/h4>\n\n\n\n
Ochrana pred slne\u010dn\u00fdm \u017eiaren\u00edm<\/h4>\n\n\n\n
O\u010dkovanie<\/h4>\n\n\n\n
Genetick\u00e9 faktory<\/h2>\n\n\n\n
Faktor \u201en\u00e1hoda\u201c<\/h2>\n\n\n\n