{"id":80635,"date":"2018-04-13T11:55:41","date_gmt":"2018-04-13T11:55:41","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/nichelul\/"},"modified":"2018-04-13T11:55:41","modified_gmt":"2018-04-13T11:55:41","slug":"nichelul","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/","title":{"rendered":"Nichelul"},"content":{"rendered":"

Ce este nichelul?<\/h2>\n

Nichelul este un element prezent \u00een organisme \u00eentr-o cantitate egal\u0103 cu aproximativ 1 mg \u00een total, cea mai mare parte fiind distribuit\u0103 \u00eentre oase, pancreas \u0219i saliv\u0103. Mineralele din care se extrage cea mai mare parte a nichelului sunt sulfurile de fier\/nichel, cum ar fi pentlanditul. El este util pentru cre\u0219terea absorb\u021biei de fier, prevenirea s\u00e2nge cu con\u021binut redus de fier (anemie) \u0219i tratarea oaselor sl\u0103bite. Oamenii pot fi expu\u0219i la nichel prin aerul respirat, apa potabil\u0103, consumul de alimente sau fumatul. Contactul pielii cu solul sau apa contaminat\u0103 poate avea ca rezultat \u0219i expunerea la nichel. \u00cen timp ce nichelul este un element esen\u021bial \u0219i \u00eendepline\u0219te o func\u021bie vital\u0103 \u00een metabolism, consumul prea mare se poate dovedi periculos pentru s\u0103n\u0103tatea uman\u0103.<\/p>\n

<\/h2>\n

Care este rolul nichelului?<\/h2>\n

Nichelul ac\u021bioneaz\u0103 ca \u0219i co-factor pentru mai multe enzime. Cercet\u0103rile efectuate la om \u0219i la animale indic\u0103 un rol \u00een metabolismul anumitor hormoni, precum \u0219i al glucozei \u0219i lipidelor. De asemenea, se pare c\u0103 nichelul este implicat \u00een men\u021binerea integrit\u0103\u021bii membranelor celulare \u0219i a stabilit\u0103\u021bii ADN \u0219i ARN.<\/p>\n

 <\/p>\n

Ce alimente sunt bogate \u00een nichel?<\/h2>\n

Nichelul este prezent \u00een semin\u021be, hri\u0219c\u0103 \u0219i fructe de mare. Varza, ro\u0219iile, fasolea \u0219i alte leguminoase pot fi o surs\u0103 a acestui element. \u00cen general, merit\u0103 men\u021bionat faptul c\u0103 acea cantitate de nichel prezent\u0103 \u00een mod natural \u00een alimentele de origine vegetal\u0103 depinde \u00een mare m\u0103sur\u0103 de terenul pe care au fost cultivate. Ciocolata este inclus\u0103 printre cele mai importante surse de nichel. Cantit\u0103\u021bi mai mari se g\u0103sesc \u00een gr\u0103simile vegetale hidrogenate, deoarece nichelul este utilizat pentru producerea lor.<\/p>\n

 <\/p>\n

Care este cerin\u021ba zilnic\u0103 recomandat\u0103 de nichel?<\/h2>\n

 <\/p>\n

Corpul uman necesit\u0103 aproximativ 100 de micrograme de nichel pe zi.<\/p>\n

 <\/p>\n

Care sunt consecin\u021bele deficitului de nichel?<\/h2>\n

\u00cen general, nevoia de nichel este complet satisf\u0103cut\u0103 din alimenta\u021bie. Exist\u0103, totu\u0219i, c\u00e2teva afec\u021biuni (cum ar fi transpira\u021bia excesiv\u0103, malabsorb\u021bia intestinal\u0103,<\/p>\n

stresul sau boli cum ar fi ciroza \u0219i insuficien\u021ba renal\u0103 cronic\u0103) care pot duce la deficien\u021be. Aceste deficien\u021be pot provoca, la r\u00e2ndul lor, insuficien\u021b\u0103 hepatic\u0103, probleme de cre\u0219tere \u0219i de reproducere, decolorarea pielii \u0219i agravarea anemiei preexistente.<\/p>\n

 <\/p>\n

Care sunt consecin\u021bele consumului excesiv de nichel?<\/h2>\n

Excesul de nichel care se acumuleaz\u0103 \u00een ficat, rinichi, oase \u0219i aort\u0103 poate duce la otr\u0103vire. Simptomele posibile pot include grea\u021b\u0103 \u0219i v\u0103rs\u0103turi, cefalee, ame\u021beli, dificult\u0103\u021bi la respira\u021bie, tuse, durere toracic\u0103 \u0219i erup\u021bie cutanat\u0103. Un aport relativ ridicat de nichel a fost, de asemenea, asociat cu un risc crescut de anumite tipuri de cancer, cum ar fi cancerul pulmonar, nazal, cancerul laringelui \u0219i cancerul de prostat\u0103, precum \u0219i riscul de atac de cord, accident vascular cerebral, astm, bron\u0219it\u0103 cronic\u0103 \u0219i insuficien\u021b\u0103 respiratorie. Expunerea la nichel \u0219i compu\u0219ii s\u0103i poate duce la ceea ce se nume\u0219te “m\u00e2nc\u0103rimi de nichel”. Acesta este, \u00een general, primul simptom, care poate persista \u0219i se poate agrava, provoc\u00e2nd ulcera\u021bii ale pielii dac\u0103 nu este tratat corespunz\u0103tor.<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1779],"class_list":["post-80635","enciclopedia","type-enciclopedia","status-publish","hentry","enciclopedia_category-minerale"],"yoast_head":"\nNichelul - 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=\"Nichelul - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Ce este nichelul? Nichelul este un element prezent \u00een organisme \u00eentr-o cantitate egal\u0103 cu aproximativ 1 mg \u00een total, cea mai mare parte fiind distribuit\u0103 \u00eentre oase, pancreas \u0219i saliv\u0103. Mineralele din care se extrage cea mai mare parte a nichelului sunt sulfurile de fier\/nichel, cum ar fi pentlanditul. El este util pentru cre\u0219terea absorb\u021biei […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/\" \/>\n<meta property=\"og:site_name\" content=\"Humanitas.net\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/HumanitasInternational\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@humanitasmilano\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/\",\"url\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/\",\"name\":\"Nichelul - Humanitas.net\",\"isPartOf\":{\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#website\"},\"datePublished\":\"2018-04-13T11:55:41+00:00\",\"dateModified\":\"2018-04-13T11:55:41+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/#breadcrumb\"},\"inLanguage\":\"ro-RO\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/humanitas-net.humweb.webiz.team\/ro\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Enciclopedia\",\"item\":\"https:\/\/humanitas-net.humweb.webiz.team\/enciclopedia\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Nichelul\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#website\",\"url\":\"https:\/\/humanitas-net.humweb.webiz.team\/\",\"name\":\"Humanitas.net\",\"description\":\"Humanitas Hospital\",\"publisher\":{\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/humanitas-net.humweb.webiz.team\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ro-RO\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#organization\",\"name\":\"Humanitas\",\"url\":\"https:\/\/humanitas-net.humweb.webiz.team\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ro-RO\",\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/humanitas-net.humweb.webiz.team\/wp-content\/uploads\/2025\/01\/new-humanitas-logo-1.svg\",\"contentUrl\":\"https:\/\/humanitas-net.humweb.webiz.team\/wp-content\/uploads\/2025\/01\/new-humanitas-logo-1.svg\",\"width\":1,\"height\":1,\"caption\":\"Humanitas\"},\"image\":{\"@id\":\"https:\/\/humanitas-net.humweb.webiz.team\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/HumanitasInternational\/\",\"https:\/\/x.com\/humanitasmilano\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Nichelul - Humanitas.net","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"ro_RO","og_type":"article","og_title":"Nichelul - Humanitas.net","og_description":"Ce este nichelul? Nichelul este un element prezent \u00een organisme \u00eentr-o cantitate egal\u0103 cu aproximativ 1 mg \u00een total, cea mai mare parte fiind distribuit\u0103 \u00eentre oase, pancreas \u0219i saliv\u0103. Mineralele din care se extrage cea mai mare parte a nichelului sunt sulfurile de fier\/nichel, cum ar fi pentlanditul. El este util pentru cre\u0219terea absorb\u021biei […]","og_url":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/","og_site_name":"Humanitas.net","article_publisher":"https:\/\/www.facebook.com\/HumanitasInternational\/","twitter_card":"summary_large_image","twitter_site":"@humanitasmilano","twitter_misc":{"Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/","url":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/","name":"Nichelul - Humanitas.net","isPartOf":{"@id":"https:\/\/humanitas-net.humweb.webiz.team\/#website"},"datePublished":"2018-04-13T11:55:41+00:00","dateModified":"2018-04-13T11:55:41+00:00","breadcrumb":{"@id":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/#breadcrumb"},"inLanguage":"ro-RO","potentialAction":[{"@type":"ReadAction","target":["https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/nichelul\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/"},{"@type":"ListItem","position":2,"name":"Enciclopedia","item":"https:\/\/humanitas-net.humweb.webiz.team\/enciclopedia\/"},{"@type":"ListItem","position":3,"name":"Nichelul"}]},{"@type":"WebSite","@id":"https:\/\/humanitas-net.humweb.webiz.team\/#website","url":"https:\/\/humanitas-net.humweb.webiz.team\/","name":"Humanitas.net","description":"Humanitas Hospital","publisher":{"@id":"https:\/\/humanitas-net.humweb.webiz.team\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/humanitas-net.humweb.webiz.team\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ro-RO"},{"@type":"Organization","@id":"https:\/\/humanitas-net.humweb.webiz.team\/#organization","name":"Humanitas","url":"https:\/\/humanitas-net.humweb.webiz.team\/","logo":{"@type":"ImageObject","inLanguage":"ro-RO","@id":"https:\/\/humanitas-net.humweb.webiz.team\/#\/schema\/logo\/image\/","url":"https:\/\/humanitas-net.humweb.webiz.team\/wp-content\/uploads\/2025\/01\/new-humanitas-logo-1.svg","contentUrl":"https:\/\/humanitas-net.humweb.webiz.team\/wp-content\/uploads\/2025\/01\/new-humanitas-logo-1.svg","width":1,"height":1,"caption":"Humanitas"},"image":{"@id":"https:\/\/humanitas-net.humweb.webiz.team\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/HumanitasInternational\/","https:\/\/x.com\/humanitasmilano"]}]}},"acf":[],"_links":{"self":[{"href":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wp-json\/wp\/v2\/enciclopedia\/80635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wp-json\/wp\/v2\/enciclopedia"}],"about":[{"href":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wp-json\/wp\/v2\/types\/enciclopedia"}],"wp:attachment":[{"href":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wp-json\/wp\/v2\/media?parent=80635"}],"wp:term":[{"taxonomy":"enciclopedia_category","embeddable":true,"href":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wp-json\/wp\/v2\/Example?post=80635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}