{"id":678923,"date":"2026-02-26T18:26:03","date_gmt":"2026-02-26T18:26:03","guid":{"rendered":"https:\/\/microscopemedia.com\/?p=678923"},"modified":"2026-02-26T18:26:03","modified_gmt":"2026-02-26T18:26:03","slug":"un-supliment-popular-pentru-creier-este-asociat-cu-o-speranta-de-viata-mai-scurta-la-barbati-spun-cercetatorii","status":"publish","type":"post","link":"https:\/\/microscopemedia.com\/?p=678923","title":{"rendered":"Un supliment popular pentru creier este asociat cu o speran\u021b\u0103 de via\u021b\u0103 mai scurt\u0103 la b\u0103rba\u021bi, spun cercet\u0103torii"},"content":{"rendered":"
<\/div>\n

Articolul, intitulat \u201eRolul fenilalaninei \u0219i tirozinei \u00een longevitate: un studiu de cohort\u0103 \u0219i randomizare mendelian\u0103\u201d, a examinat dac\u0103 nivelurile acestor nutrien\u021bi din s\u00e2nge sunt legate de durata de via\u021b\u0103, arat\u0103 Science Daily<\/a>.<\/p>\n

Echipa de cercetare s-a concentrat pe fenilalanin\u0103 \u0219i tirozin\u0103.<\/p>\n

Descoperirile lor sugereaz\u0103 c\u0103 nivelurile mai ridicate de tirozin\u0103 sunt asociate cu o speran\u021b\u0103 de via\u021b\u0103 mai scurt\u0103 la b\u0103rba\u021bi, ridic\u00e2nd posibilitatea ca strategiile de longevitate s\u0103 trebuiasc\u0103 s\u0103 difere \u00een func\u021bie de sex.<\/p>\n

Fenilalanina \u0219i tirozina sunt aminoacizi care joac\u0103 un rol important \u00een metabolism \u0219i \u00een activitatea creierului. Ace\u0219tia sunt prezen\u021bi \u00een mod natural \u00een alimentele bogate \u00een proteine \u0219i sunt comercializa\u021bi \u0219i sub form\u0103 de suplimente alimentare.<\/p>\n

\u00cen ciuda utiliz\u0103rii lor pe scar\u0103 larg\u0103, oamenii de \u0219tiin\u021b\u0103 \u00eenc\u0103 nu \u00een\u021beleg pe deplin modul \u00een care ace\u0219ti compu\u0219i pot afecta procesul de \u00eemb\u0103tr\u00e2nire \u00een timp.<\/p>\n

Tirozina este deosebit de important\u0103, deoarece ajut\u0103 la producerea de neurotransmi\u021b\u0103tori, cum ar fi dopamina, care influen\u021beaz\u0103 starea de spirit, motiva\u021bia \u0219i performan\u021ba cognitiv\u0103.<\/p>\n

Datorit\u0103 rolului s\u0103u \u00een chimia creierului, tirozina a st\u00e2rnit un interes crescut \u00een cercetarea \u00eemb\u0103tr\u00e2nirii.<\/p>\n

Un studiu amplu examineaz\u0103 durata de via\u021b\u0103<\/h2>\n

Pentru a investiga poten\u021bialele leg\u0103turi cu longevitatea, cercet\u0103torii au analizat datele genetice \u0219i de s\u0103n\u0103tate ale peste 270.000 de participan\u021bi la UK Biobank.<\/p>\n

Ei au utilizat at\u00e2t date observa\u021bionale, c\u00e2t \u0219i tehnici genetice pentru a evalua dac\u0103 nivelurile de fenilalanin\u0103 \u0219i tirozin\u0103 din s\u00e2nge erau corelate cu mortalitatea general\u0103 \u0219i durata de via\u021b\u0103 prev\u0103zut\u0103.<\/p>\n

La \u00eenceput, ambii aminoacizi p\u0103reau s\u0103 fie asocia\u021bi cu un risc mai mare de deces. Cu toate acestea, dup\u0103 o analiz\u0103 mai aprofundat\u0103, numai tirozina a ar\u0103tat o rela\u021bie consistent\u0103 \u0219i poten\u021bial cauzal\u0103 cu sc\u0103derea speran\u021bei de via\u021b\u0103 la b\u0103rba\u021bi.<\/p>\n

Modelarea genetic\u0103 a sugerat c\u0103 b\u0103rba\u021bii cu niveluri ridicate de tirozin\u0103 ar putea tr\u0103i \u00een medie cu aproape un an mai pu\u021bin. Nu s-a g\u0103sit nicio asociere semnificativ\u0103 la femei.<\/p>\n

Leg\u0103tura a r\u0103mas valabil\u0103 chiar \u0219i dup\u0103 luarea \u00een considerare a altor factori conexi, inclusiv fenilalanina. Acest lucru \u00eent\u0103re\u0219te posibilitatea ca tirozina \u00een sine s\u0103 influen\u021beze \u00een mod independent \u00eemb\u0103tr\u00e2nirea.<\/p>\n

Cercet\u0103torii au observat, de asemenea, c\u0103 b\u0103rba\u021bii au, \u00een general, niveluri mai ridicate de tirozin\u0103 dec\u00e2t femeile, ceea ce ar putea explica par\u021bial diferen\u021ba de durat\u0103 de via\u021b\u0103 dintre sexe.<\/p>\n

\u201eFenilalanina nu a prezentat nicio asociere cu durata de via\u021b\u0103, nici la b\u0103rba\u021bi, nici la femei, dup\u0103 controlarea tirozin\u0103\u201d.<\/p>\n

Posibile explica\u021bii biologice<\/h3>\n

Oamenii de \u0219tiin\u021b\u0103 \u00eenc\u0103 \u00eencearc\u0103 s\u0103 \u00een\u021beleag\u0103 de ce tirozina ar putea afecta durata de via\u021b\u0103 la b\u0103rba\u021bi. O posibilitate implic\u0103 rezisten\u021ba la insulin\u0103, o afec\u021biune legat\u0103 de multe boli asociate v\u00e2rstei.<\/p>\n

Tirozina este implicat\u0103 \u0219i \u00een producerea de neurotransmi\u021b\u0103tori lega\u021bi de stres, care pot influen\u021ba c\u0103ile metabolice \u0219i hormonale \u00een mod diferit la b\u0103rba\u021bi \u0219i femei.<\/p>\n

Varia\u021biile \u00een semnalizarea hormonal\u0103 ar putea explica de ce efectul a ap\u0103rut doar la b\u0103rba\u021bi.<\/p>\n

Utilizarea suplimentelor \u0219i \u00eentreb\u0103ri privind longevitatea<\/h4>\n

Tirozina este adesea comercializat\u0103 ca supliment pentru \u00eembun\u0103t\u0103\u021birea concentr\u0103rii \u0219i a performan\u021bei mentale.<\/p>\n

De\u0219i acest studiu nu a testat direct suplimentele de tirozin\u0103, rezultatele ridic\u0103 \u00eentreb\u0103ri cu privire la impactul pe termen lung asupra s\u0103n\u0103t\u0103\u021bii \u0219i duratei de via\u021b\u0103.<\/p>\n

Cercet\u0103torii sugereaz\u0103 c\u0103 persoanele cu niveluri ridicate de tirozin\u0103 ar putea beneficia de ajust\u0103ri ale dietei.<\/p>\n

Abord\u0103ri precum moderarea aportului total de proteine ar putea reduce poten\u021bial nivelurile de tirozin\u0103 \u0219i ar putea contribui la o \u00eemb\u0103tr\u00e2nire mai s\u0103n\u0103toas\u0103.<\/p>\n

Sunt necesare mai multe cercet\u0103ri pentru a confirma aceste rezultate \u0219i pentru a determina dac\u0103 schimb\u0103rile \u00een diet\u0103 sau stilul de via\u021b\u0103 pot reduce \u00een siguran\u021b\u0103 nivelurile de tirozin\u0103 \u0219i pot promova o via\u021b\u0103 mai lung\u0103.<\/p>\n","protected":false},"excerpt":{"rendered":"

Articolul, intitulat \u201eRolul fenilalaninei \u0219i tirozinei \u00een longevitate: un studiu de cohort\u0103 \u0219i randomizare mendelian\u0103\u201d, a examinat dac\u0103 nivelurile acestor nutrien\u021bi din s\u00e2nge sunt legate de durata de via\u021b\u0103, arat\u0103 … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":678924,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/678923"}],"collection":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=678923"}],"version-history":[{"count":0,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/678923\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/media\/678924"}],"wp:attachment":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=678923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=678923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=678923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}