{"id":62643,"date":"2020-06-09T08:13:51","date_gmt":"2020-06-09T08:13:51","guid":{"rendered":"https:\/\/www.humanitas.net\/?post_type=disease&p=62643"},"modified":"2020-10-29T10:55:56","modified_gmt":"2020-10-29T10:55:56","slug":"selen","status":"publish","type":"disease","link":"https:\/\/www.humanitas.net\/sl\/diseases\/selen\/","title":{"rendered":"Selen"},"content":{"rendered":"

Kaj je selen?<\/h2>\n

Selen je element, ki ga najdemo v majhnih koli\u010dinah v telesu. Klju\u010dnega pomena je za organizem, saj igra vlogo pri delovanju \u0161\u010ditnice in pri pravilnem delovanju imunskega sistema.<\/p>\n

 <\/p>\n

Kak\u0161na je funkcija selena?<\/h2>\n

V celicah selen omogo\u010da pravilno delovanje celi\u010dnih antioksidantov. Celi\u010dni antioksidanti pomagajo v boju proti \u0161kodljivim delcem v telesu, znanim kot prosti radikali. Prosti radikali lahko po\u0161kodujejo celi\u010dne membrane in DNK, kar prispeva k staranju in zdravstvenim te\u017eavam. Antioksidanti igrajo vlogo pri nevtralizaciji prostih radikalov, da bi zmanj\u0161ali ali prepre\u010dili \u0161kodo, ki jo lahko povzro\u010dijo. Selen kot del desetine beljakovin pogosto nosi ime \u201eselenski protein\u201c in je vklju\u010den v \u0161tevilne druge procese, kot je sinteza DNK pri presnovi \u0161\u010ditni\u010dnih \u017elez, ki \u0161\u010diti telo pred oku\u017ebami in razmno\u017eevanjem.<\/p>\n

 <\/p>\n

Katera \u017eivila so bogata s selenom?<\/h2>\n

Hrana, ki je bogata s selenom, vklju\u010duje ribe in meso. Drugi viri vklju\u010dujejo rde\u010de meso, mle\u010dne izdelke in \u017eitarice. Na splo\u0161no je koli\u010dina selena v \u017eivilih rastlinskega izvora odvisna od tega, koliko selena je bilo v tleh, kjer je bila hrana pridelana. U\u017eivanje razli\u010dnih celih, nepredelanih \u017eivil je najbolj\u0161i na\u010din, da selen vklju\u010di v prehrano.<\/p>\n

 <\/p>\n

Kak\u0161na je priporo\u010dena dnevna potreba po selenu?<\/h2>\n

Priporo\u010deni dnevni vnos selena se razlikuje glede na starost posameznika.<\/p>\n

 <\/p>\n

20 mikrogramov na dan za otroke do 3. leta starosti<\/p>\n

30 mikrogramov na dan za otroke do 8 let<\/p>\n

40 mikrogramov na dan za otroke do 13. leta starosti<\/p>\n

55 mikrogramov na dan za posameznike, starej\u0161e od 14 let<\/p>\n

60-70 mikrogramov na dan se priporo\u010da \u017eenskam, ki so nose\u010de ali dojijo<\/p>\n

 <\/p>\n

Kak\u0161ne so posledice pomanjkanja selena?<\/h2>\n

 <\/p>\n

Pomanjkanje selena lahko zmanj\u0161a delovanje skeletnih mi\u0161ic; motijo \u200b\u200bproizvodnjo rde\u010dih krvnih celic, spremenijo pigmentacijo ko\u017ee in las, pa tudi pove\u010dajo krhkost nohtov. Nizka raven selena lahko povzro\u010di tudi razvoj bolezni ob prisotnosti dodatnega stresa. Tak\u0161ni primeri lahko vklju\u010dujejo virusne oku\u017ebe, ki so lahko povezane z mo\u0161ko neplodnostjo in lahko poslab\u0161ajo posledice pomanjkanja joda, s \u010dimer se pove\u010da tveganje za kretenizem pri otrocih. Nizka raven selena je lahko tudi pri osebah, ki kadijo cigarete, pijejo alkohol, jemljejo kontracepcijske tablete ali imajo pogoje, ki prepre\u010dujejo proces absorpcije selena (na primer Crohnova bolezen ali ulcerozni kolitis).<\/p>\n

 <\/p>\n

Kak\u0161ne so posledice pretiranega vnosa selena?<\/h2>\n

Primeri zastrupitve s selenom, ki jih jemljemo z dodatki, so povezani s simptomi, kot so slabost, bruhanje, driska, bole\u010dine v trebuhu, krhki nohti in izpadanje las.<\/p>\n

 <\/p>\n

Je res, da je jemanje selena dobro za zdravje?<\/h2>\n

Selen velja za mineral, ki se je izkazal za u\u010dinkovitega in blagodejnega za zdravje posameznika. Nekatere \u0161tudije povezujejo vnos selena z zmanj\u0161anim tveganjem za raka, kognitivne u\u010dinke, bolezni srca in o\u017eilja ter te\u017eave s \u0161\u010ditnico. Vendar lahko le nadaljnje raziskave razjasnijo mo\u017eno preventivno vlogo tega elementa. Vsekakor je zaradi mo\u017enih stranskih u\u010dinkov in interakcij z zdravili klju\u010dno, da se pred jemanjem dodatkov selena pogovorite z zdravnikom.<\/p>\n","protected":false},"author":11,"featured_media":0,"template":"","yoast_head":"\nSelen - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.humanitas.net\/sl\/diseases\/selen\/\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Selen - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Kaj je selen? Selen je element, ki ga najdemo v majhnih koli\u010dinah v telesu. Klju\u010dnega pomena je za organizem, saj igra vlogo pri delovanju \u0161\u010ditnice in pri pravilnem delovanju imunskega sistema.   Kak\u0161na je funkcija selena? 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