{"id":77760,"date":"2017-02-13T12:18:17","date_gmt":"2017-02-13T12:18:17","guid":{"rendered":"http:\/\/humanitasnet-new.local\/cure\/homocistein\/"},"modified":"2017-02-13T12:18:17","modified_gmt":"2017-02-13T12:18:17","slug":"homocistein","status":"publish","type":"cure","link":"https:\/\/humanitas-net.humweb.webiz.team\/sr\/treatments\/homocistein\/","title":{"rendered":"Homocistein"},"content":{"rendered":"<h1>Homocistein<\/h1>\n<p>&nbsp;<\/p>\n<h2 id=\"sta-je-homocistein\">\u0160ta je homocistein?<\/h2>\n<p>Homocistein prdstavlja aminokiselinu koja sadr\u017ei sulfur i predstavlja metaboli\u010dki produkt metionina, aminokiseline od esencijalnog zna\u010daja kao energetskog izvora za organizam. Ova aminokiselina stvara se u ljudskom organizmu, kao bioprodukt konzumiranja mesnih proizvoda. Homocistein fiziolo\u0161ki se konvertuje u druge aminokiseline. Patolo\u0161ke akumulacije homocisteina, merene u krvi, mogu predstavljati marker sr\u010danih oboljenja. Povi\u0161ene vrednosti homocisteina u krvi predstavljaju faktor rizika za sr\u010dani napad, mo\u017edani udar, periferna vaskularna oboljenja, venski tromboembolizam (zgru\u0161avanje krvi u venama). Veruje se da homocistein dovodi do o\u0161te\u0107enja krvnih sudova na nekoliko na\u010dina. Pre svega, dovodi do o\u0161te\u0107enja \u0107elija koje ograni\u010davaju arterije i stimuli\u0161e rast glatkih mi\u0161i\u0107nih \u0107elija. Homocistein tako\u0111e mo\u017ee izazvati o\u0161te\u0107enje u normalnom putu faktora zgru\u0161avanja. Povi\u0161eni nivoi homocisteina mogu predstavljati povi\u0161en rizik za nastanak Alchajmer-ove bolesti.<\/p>\n<p>Homocistinurija je redak genetski poreme\u0107aj koji se javlja kod svake 200,000 osobe. Ovaj kongenitalni metaboli\u010dki poreme\u0107aj izaziva ekskreciju (izlu\u010divanje) ogromnih koli\u010dina homocisteina urinom. Homocistinuija udru\u017eena je sa mentalnom retardacijom i nastankom sr\u010danih oboljenja pre tridesete godine.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"zasto-se-meri-nivo-homocisteina\">Za\u0161to se meri nivo homocisteina?<\/h2>\n<p>Ispitivanje nivoa vrednosti homocisteina u ljudskom organizmu mo\u017ee biti od koristi za procenu kardiovaskularne funkcije. U stvari, visoke vrednosti homocisteina mogu pordstavljati rizik po kardiovaskularni sistem. Visoki nivoi homocisteina udru\u017eeni su sa ni\u017eim vrednostima vitamina B6 i B12, folnom kiselinom i oboljenjima bubrega.\u00a0 Istra\u017eivanje je pokazalo da redukcija nivoa homocisteina upotrebom vitamina ne smanjuje rizik od kardiovaskularnih oboljenja.<\/p>\n<p>Smatra se da homocistinurija izaziva iritaciju epitela krvnih sudova dovode\u0107i do stvaranja o\u017eiljnih promena, stvrdnjavanja i su\u017eavanja istih. Ovo nadalje pove\u0107ava potrebu za sr\u010danim radom (isticanjem krvi u ciljane organe), dovode\u0107i do sr\u010danih oboljenja. Visoke vrednosti homocisteina tako\u0111e izazivaju pove\u0107ano zgru\u0161avanje krvi. Krvni ugru\u0161ci sni\u017eavaju ili blokiraju protok krvi kroz krvne sudove, \u0161to mo\u017ee rezultovati mo\u017edanim ili sr\u010danim infarktom.<\/p>\n<p>Nivo homocisteina u krvi varira u fiziolo\u0161kim uslovima zavisno od mnogih faktora kao \u0161to su starost, pol, dijeta, nasledni faktori i op\u0161te zdravstveno stanje, ali je procenjeno da oko 5-10% populacije poseduje visoke vrednosti homocisteina. Izuzetak predstavljaju osobe sa kongenitalnom homocistinurijom, osobe sa visokim vrednostima homocisteina koje ne poseduju karakterisit\u010dne znake i simptome.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"nacin-uzorkovanja\">Na\u010din uzorkovanja<\/h2>\n<p>Uzrokovanje se obi\u010dno vr\u0161i u jutarnjim \u010dasovima u bolni\u010dkim uslovima. Nisu potrebne posebne prethodne pripreme radi ovog ispitivanja. Va\u0161 lekar \u0107e vas posavetovati da li je potrebno prethodno gladovanje. Neophodno je da upoznate svog lekara u slu\u010daju upotrebe medikamentozne terapije pre ispitivanja, budu\u0107i da odre\u0111eni lekovi mogu uticati na rezultate analize.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"da-li-je-merenje-glikemije-bolno-ili-opasno\">Da li je merenje glikemije bolno ili opasno?<\/h2>\n<p>Merenje glikemije predstavlja jednostavni i neinvazivni pregled. Jedina nelagodnost mo\u017ee biti u vidu ose\u0107aja peckanja u predelu\u00a0 va\u0111enja krvi.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"kako-se-pregled-vrsi\">Kako se pregled vr\u0161i?<\/h2>\n<p>Ispitivanje podrazumeva jednostavan test krvi.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-77760","cure","type-cure","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Homocistein - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"sr_RS\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Homocistein - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Homocistein &nbsp; \u0160ta je homocistein? Homocistein prdstavlja aminokiselinu koja sadr\u017ei sulfur i predstavlja metaboli\u010dki produkt metionina, aminokiseline od esencijalnog zna\u010daja kao energetskog izvora za organizam. Ova aminokiselina stvara se u ljudskom organizmu, kao bioprodukt konzumiranja mesnih proizvoda. Homocistein fiziolo\u0161ki se konvertuje u druge aminokiseline. Patolo\u0161ke akumulacije homocisteina, merene u krvi, mogu predstavljati marker sr\u010danih oboljenja. 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Homocistein prdstavlja aminokiselinu koja sadr\u017ei sulfur i predstavlja metaboli\u010dki produkt metionina, aminokiseline od esencijalnog zna\u010daja kao energetskog izvora za organizam. Ova aminokiselina stvara se u ljudskom organizmu, kao bioprodukt konzumiranja mesnih proizvoda. Homocistein fiziolo\u0161ki se konvertuje u druge aminokiseline. Patolo\u0161ke akumulacije homocisteina, merene u krvi, mogu predstavljati marker sr\u010danih oboljenja. 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