{"id":80643,"date":"2018-04-13T12:13:11","date_gmt":"2018-04-13T12:13:11","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/zincul\/"},"modified":"2018-04-13T12:13:11","modified_gmt":"2018-04-13T12:13:11","slug":"zincul","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/zincul\/","title":{"rendered":"Zincul"},"content":{"rendered":"<h2 id=\"ce-este-zincul\">Ce este zincul?<\/h2>\n<p>Zincul este un oligoelement esen\u021bial, ceea ce \u00eenseamn\u0103 c\u0103 este prezent \u00een organism \u00een cantit\u0103\u021bi mici. La un adult, se g\u0103sesc aproximativ 2 mg \u00een organism. Al\u0103turi de fier, zincul este cel mai frecvent mineral din corp \u0219i este g\u0103sit \u00een fiecare celul\u0103. Acesta joac\u0103 un rol important \u00een cre\u0219tere, reproducere, coagularea s\u00e2ngelui, vedere, func\u021bia tiroidian\u0103 \u0219i func\u021bionarea sistemului imunitar.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"care-este-functia-zincului\">Care este func\u021bia zincului?<\/h2>\n<p>&nbsp;<\/p>\n<p>Zincul este o component\u0103 implicat\u0103 \u00een func\u021bia de sute de complexe enzimatice, cum ar fi metabolizarea proteinelor, a lipidelor, a carbohidra\u021bilor \u0219i a acizilor nucleici. \u00cen plus, este necesar \u0219i pentru func\u021bia mai multor hormoni, inclusiv a hormonului tiroidian, a hormonului de insulin\u0103, a hormonilor sexuali \u0219i a celui de cre\u0219tere. Prezen\u021ba sa este important\u0103 at\u00e2t pentru stabilizarea membranelor \u0219i a altor componente celulare, c\u00e2t \u0219i pentru a oferi structura \u0219i reglarea corespunz\u0103toare a organelor. Zincul este esen\u021bial pentru diviziunea celular\u0103, precum \u0219i pentru cre\u0219terea \u0219i dezvoltarea \u00een timpul sarcinii, copil\u0103riei \u0219i adolescen\u021bei. De asemenea, este implicat \u00een sinteza ADN, expresia genelor \u00een r\u0103spunsul imun, \u00een vindecarea r\u0103nilor \u0219i repararea \u021besuturilor. \u00cen cele din urm\u0103, este implicat \u00een percep\u021bia gustului \u0219i mirosului.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"ce-alimente-sunt-bogate-in-zinc\">Ce alimente sunt bogate \u00een zinc?<\/h2>\n<p>&nbsp;<\/p>\n<p>Zincul se g\u0103se\u0219te \u00een principal \u00een stridii, drojdie, ficat, carne, ou\u0103, pe\u0219te, cereale, lapte \u0219i deriva\u021bii s\u0103i. Cu toate acestea, organismul poate absorbi doar o cantitate mic\u0103, \u00eentre 20 \u0219i 30% din \u00eentreaga cantitate g\u0103sit\u0103 \u00een alimente. Este prezent \u0219i \u00een legume, dar \u00eentr-o form\u0103 mai pu\u021bin disponibil\u0103 \u0219i mai dificil de absorbit.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"care-este-cerinta-de-zinc-recomandata-zilnic\">Care este cerin\u021ba de zinc recomandat\u0103 zilnic?<\/h2>\n<p>&nbsp;<\/p>\n<p>Aportul zilnic recomandat de zinc este de 15 mg. Cu toate acestea, la femei, necesitatea cre\u0219te \u00een timpul al\u0103pt\u0103rii, ajung\u00e2nd la 19 mg zilnic. \u00cen orice caz, zincul trebuie luat cu ap\u0103 sau suc \u0219i dup\u0103 mese.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"care-sunt-consecintele-deficientei-de-zinc\">Care sunt consecin\u021bele deficien\u021bei de zinc?<\/h2>\n<p>&nbsp;<\/p>\n<p>Deficitul de zinc care s\u0103 duc\u0103 la consecin\u021be grave este \u00eent\u00e2lnit mai rar. Totu\u0219i, un aport insuficient al acestui nutrient poate provoca modific\u0103ri ale pielii, pierderea p\u0103rului, diaree, infec\u021bii recurente \u0219i probleme psihologice. \u00cen cazuri severe, o deficien\u021b\u0103 poate duce la \u00eent\u00e2rzieri \u00een dezvoltarea \u0219i maturizarea sexual\u0103, la impoten\u021b\u0103, pierderea \u00een greutate, compromiterea gustului, mirosului sau vindecarea mai lent\u0103 a r\u0103nilor. \u00cen plus, deficitul de zinc poate cre\u0219te riscul de deficien\u021b\u0103 a vitaminei A.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"care-sunt-consecintele-aportului-excesiv-de-zinc\">Care sunt consecin\u021bele aportului excesiv de zinc?<\/h2>\n<p>&nbsp;<\/p>\n<p>Excesul de aport de zinc cauzeaz\u0103 de obicei v\u0103rs\u0103turi, grea\u021b\u0103, diaree, iritabilitate, somnolen\u021b\u0103, anemie \u0219i ame\u021beli. Un exces de zinc acumulat \u00een timp poate \u00een schimb s\u0103 modifice metabolismul cuprului \u0219i fierului \u00een organism, s\u0103 interfereze cu starea de s\u0103n\u0103tate a globulelor ro\u0219ii din s\u00e2nge, s\u0103 reduc\u0103 nivelul anumitor globule albe din s\u00e2nge \u0219i s\u0103 diminueze func\u021bia imun\u0103. De asemenea, prea mult zinc poate reduce colesterolul HDL, considerat colesterolul &#8220;bun&#8221;, afect\u00e2nd func\u021bia inimii \u0219i unele enzime pancreatice.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"este-adevarat-ca-administrarea-de-zinc-poate-ajuta-la-prevenirea-racelilor\">Este adev\u0103rat c\u0103 administrarea de zinc poate ajuta la prevenirea r\u0103celilor?<\/h2>\n<p>&nbsp;<\/p>\n<p>Unele studii au ar\u0103tat c\u0103, \u00een caz de malnutri\u021bie, administrarea de zinc poate ajuta la cre\u0219terea limfocitelor T, reduc\u00e2nd astfel durata \u0219i severitatea infec\u021biilor. Cu toate acestea, se pare c\u0103 dischetele \u0219i gelurile nazale cu zinc nu sunt eficiente \u00een tratamentul r\u0103celilor.<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1779],"class_list":["post-80643","enciclopedia","type-enciclopedia","status-publish","hentry","enciclopedia_category-minerale"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Zincul - 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=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Zincul - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Ce este zincul? 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