{"id":80740,"date":"2018-04-17T10:05:58","date_gmt":"2018-04-17T10:05:58","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/bakar\/"},"modified":"2018-04-17T10:05:58","modified_gmt":"2018-04-17T10:05:58","slug":"bakar","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/sr\/wiki\/bakar\/","title":{"rendered":"Bakar"},"content":{"rendered":"<h2 id=\"sta-je-bakar\">\u0160ta je bakar?<\/h2>\n<p>Bakar je mineral koji se u veoma malim koli\u010dinama mo\u017ee na\u0107i u ljudskom telu. Smatra se tre\u0107im mineralom po va\u017enosti, iza gvo\u017e\u0111a i aluminijuma. U telu odraslih osoba uglavnom se nalazi oko 100 mg bakra, i to najvi\u0161e u jetri, kostima, mi\u0161i\u0107ima, mozgu, bubrezima i srcu. Bakar je element od velike va\u017enosti za uspostavljanje i odr\u017eavanje normalne funkcije tela, i predstavlja jedan od va\u017enijih nutrijenata. Bakar je zaslu\u017ean za odr\u017eavanje zdravlja nervnih \u0107elija kao i celokupnog imunog sistema.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"koja-je-funkcija-bakra\">Koja je funkcija bakra?<\/h2>\n<p>Bakar je neophodan za normalno funkcionisanje velikog broja razli\u010ditih enzima. Pored toga, bakar aktivno u\u010destvuje u regulisanju metabolizma. Kombinuju\u0107i se sa gvo\u017e\u0111em, bakar proizvodi crvena krvna zrnca, odnosno eritrocite, kosti i vezivno tkivo, \u010dime poma\u017ee telu u proizvodnji energije. Bakar tako\u0111e u\u010destvuje i u pigmentaciji ko\u017ee i kose, a poma\u017ee i pri uspostavljanju normalnog funkcionisanja srca. Bakar je i antioksidant koji smanjuje broj slobodnih radikala koji mogu dovesti do o\u0161te\u0107enja na zidovima \u0107elija i DNK.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"koje-namirnice-su-bogate-bakrom\">Koje namirnice su bogate bakrom?<\/h2>\n<p>Bubrezi i jetra \u017eivotinja i \u017eivine su namirnice najbogatije bakrom. Neke od namirnica u kojima se mogu na\u0107i manje koli\u010dine bakra su \u0161koljke, rakovi, su\u0161eno vo\u0107e, semenke, p\u0161eni\u010dne mekinje, cela zrna \u017eitarica, zeleno lisnato povr\u0107e, \u010dokolada i mahunarke.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"koji-je-preporuceni-dnevni-unos-bakra\">Koji je preporu\u010deni dnevni unos bakra?<\/h2>\n<p>Odraslim osobama se preporu\u010duje unos izme\u0111u 1.5 i 3 mg bakra dnevno. Iako ne postoji definisana koli\u010dina za decu i starije, smatra se da ova koli\u010dina zadovoljava dnevne potrebe ve\u0107ine ljudi bez obzira na starosnu dob, i u najve\u0107em broju slu\u010daja mo\u017ee se posti\u0107i zdravom izbalansiranom ishranom.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"koje-su-posledice-nedostatka-bakra-u-telu\">Koje su posledice nedostatka bakra u telu?<\/h2>\n<p>Neuravnote\u017eena ishrana, problemi sa apsorpcijom nutrijenata kao i preterani unos cinka mogu dovesti do nedostatka bakra u telu. Iako je hroni\u010dna deficijencija bakra izuzetno retka pojava, mo\u017ee imati ozbiljne posledice po zdravlje \u010doveka, i izazvati demineralizaciju kostiju, slabljenje zidova arterija, anemiju, probleme za vezivnim tkivom, poreme\u0107aje nerava, poreme\u0107aje imunolo\u0161ke funkcije, kao i pove\u0107ati rizik od kardiovaskularnih i neurodegenerativnih bolesti. U pojedinim slu\u010dajevima uzimanje suplemenata bakra mo\u017ee pomo\u0107i pacijentima koji boluju od anemije. Bez obzira na njegova svojstva, neophodno je savetovanje sa lekarom pre nego \u0161to se zapo\u010dne terapija bakrom.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"koje-su-posledice-preteranog-unosa-bakra\">Koje su posledice preteranog unosa bakra?<\/h2>\n<p>Preterani unos bakra u telo kroz ishranu veoma je retka pojava. Do povi\u0161enog nivoa bakra u krvi \u010de\u0161\u0107e dolazi nakon uzimanja suplemenata, \u0161to mo\u017ee dovesti do pojave simptoma poput mu\u010dnine, povra\u0107anja, dijareje i groznice. Te\u017ei slu\u010dajevi povi\u0161enog nivoa bakra u krvi uglavnom se javljaju kod dece i mogu izazvati o\u0161te\u0107enja na jetri, a u nekim slu\u010dajevima i cirozu jetre. U slu\u010dajevima kada je jetra onemogu\u0107ena da metaboli\u0161e povi\u0161enu koli\u010dinu bakra u krvi dolazi do pojave Vilsonove bolesti. Vilsonova bolest je retko genetsko oboljenje koje dovodi do nagomilavanja bakra u jetri, mozgu, o\u010dima i drugim organima, i izaziva drhtanje, pote\u0161ko\u0107e sa govorom, probleme sa koordinacijom, promene u li\u010dnosti i hepatitis.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"sta-je-ceruloplazmija\">\u0160ta je ceruloplazmija?<\/h2>\n<p>Ceruloplazmin je protein koji se nalazi u krvi a u sebi sadr\u017ei bakar. Nizak nivo ceruloplazmina u krvi \u010desto ukazuje na postojanje Vilsonove bolesti, Menkeovog sindroma, aceruloplazminemije, poodmaklih stadijuma bolesti jetre, kao i neuhranjenosti. Povi\u0161en nivo ceruloplazmina javlja se prilikom trovanja bakrom, tokom trudno\u0107e i uzimanja oralnih kontraceptivnih sredstava ili estrogena. Povi\u0161en nivo ceruloplazmina \u010desto ukazuje i na leukemiju, Hod\u017ekinskovu bolest, sistemski eritemski lupus, reumatoidni artritis, Alchajmerovu bolest, primarnu bilijarnu cirozu, kolestazu kao i upale.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1784],"class_list":["post-80740","enciclopedia","type-enciclopedia","status-publish","hentry","enciclopedia_category-minerali"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bakar - 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=\"Bakar - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"\u0160ta je bakar? 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