{"id":80624,"date":"2018-04-13T11:15:44","date_gmt":"2018-04-13T11:15:44","guid":{"rendered":"http:\/\/humanitasnet-new.local\/enciclopedia\/cadmiu\/"},"modified":"2018-04-13T11:15:44","modified_gmt":"2018-04-13T11:15:44","slug":"cadmiu","status":"publish","type":"enciclopedia","link":"https:\/\/humanitas-net.humweb.webiz.team\/ro\/wiki\/cadmiu\/","title":{"rendered":"Cadmiu"},"content":{"rendered":"

Ce este cadmiul?<\/h2>\n

Cadmiul este un metal greu, care poate fi prezent \u00een alimente \u0219i absorbit de organism \u00een cantit\u0103\u021bi mici. Este re\u021binut eficient \u00een rinichi \u0219i ficat, unde poate r\u0103m\u00e2ne timp de decenii. Cadmiul este un metal relativ toxic, a c\u0103rui importan\u021b\u0103 a fost investigat\u0103 abia recent. Toxicitatea metalului pare a fi legat\u0103 de capacitatea sa de a \u00eenlocui ionii metalici endogeni din constituen\u021bii celulari, \u00een special proteinele.<\/p>\n

Care este func\u021bia cadmiului?<\/h2>\n

Cadmiul afecteaz\u0103 metabolismul calciului, \u00eenlocuie\u0219te calciul din oase \u0219i poate contribui la anumite afec\u021biuni medicale, cum ar fi osteoporoza \u0219i osteomalacia, pietrele ureterale \u0219i renale, durerile de spate \u00een zona inferioar\u0103, durerile de picioare, excesul de calciu \u00een urin\u0103 (hipercalciuria), poliartrita reumatoid\u0103 \u0219i sc\u0103derea produc\u021biei active de vitamina D. Cadmiul particip\u0103, de asemenea, la activarea anumitor enzime, precum \u0219i la \u00eenlocuirea zincului, care este prezent \u00een mod normal \u00een carboxipeptidaz\u0103. Carboxipeptidaza este o enzim\u0103 care se g\u0103se\u0219te \u00een pancreas \u0219i intestin \u0219i este implicat\u0103 \u00een digestia proteinelor. Deficitul de zinc poate duce la simptome precum rigiditatea, tensiune arterial\u0103 crescut\u0103 \u0219i inflama\u021biile.<\/p>\n

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

admiul este considerat o toxin\u0103 \u00een alimente, cum ar fi alte metale, inclusiv arsenicul \u0219i plumbul. Prezen\u021ba sa, care se \u00eenregistreaz\u0103 \u00een multe alimente, depinde de concentra\u021bia sa \u00een sol, ap\u0103 \u0219i aer. Nivelurile de cadmiu \u00een unele alimente pot fi sporite prin aplicarea \u00eengr\u0103\u0219\u0103mintelor fosfatice sau a n\u0103molurilor de epurare \u00een c\u00e2mpurile agricole. Printre alimentele care sunt mai bogate \u00een cadmiu se num\u0103r\u0103 ficatul, ciupercile, crustaceele, pudra de cacao \u0219i algele uscate.<\/p>\n

Care este doza zilnic\u0103 recomandat\u0103 de cadmiu?<\/h2>\n

Nu este recomandat un aport zilnic de cadmiu.<\/p>\n

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

\u00cen prezent, nu exist\u0103 nicio boal\u0103 cunoscut\u0103 ca fiind asociat\u0103 cu deficien\u021ba de cadmiu. Cu toate acestea, deoarece cadmiul \u0219i zincul sunt str\u00e2ns legate, deficien\u021ba de zinc poate duce la toxicitatea cadmiului. Femeile sunt mai predispuse la toxicitatea cadmiului dec\u00e2t b\u0103rba\u021bii. Acest lucru se datoreaz\u0103 faptului c\u0103 femeile, \u00een general, tind s\u0103 aib\u0103 o rat\u0103 metabolic\u0103 mai sc\u0103zut\u0103 dec\u00e2t b\u0103rba\u021bii. \u00cen astfel de cazuri, afec\u021biunile<\/p>\n","protected":false},"featured_media":0,"parent":0,"template":"","Example":[1779],"class_list":["post-80624","enciclopedia","type-enciclopedia","status-publish","hentry","enciclopedia_category-minerale"],"yoast_head":"\nCadmiu - 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=\"Cadmiu - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Ce este cadmiul? Cadmiul este un metal greu, care poate fi prezent \u00een alimente \u0219i absorbit de organism \u00een cantit\u0103\u021bi mici. 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