{"id":677482,"date":"2026-02-18T12:16:03","date_gmt":"2026-02-18T12:16:03","guid":{"rendered":"https:\/\/microscopemedia.com\/?p=677482"},"modified":"2026-02-18T12:16:03","modified_gmt":"2026-02-18T12:16:03","slug":"studiu-barbatii-isi-pierd-cromozomul-y-odata-cu-varsta-ce-impact-are-asupra-sanatatii","status":"publish","type":"post","link":"https:\/\/microscopemedia.com\/?p=677482","title":{"rendered":"Studiu: B\u0103rba\u021bii \u00ee\u0219i pierd cromozomul Y odat\u0103 cu v\u00e2rsta. Ce impact are asupra s\u0103n\u0103t\u0103\u021bii?"},"content":{"rendered":"
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Pe m\u0103sur\u0103 ce \u00eenainteaz\u0103 \u00een v\u00e2rst\u0103, mul\u021bi b\u0103rba\u021bi \u00ee\u0219i pierd treptat cromozomul Y dintr-o parte din celule.<\/p>\n

Cercet\u0103ri recente sugereaz\u0103 c\u0103 aceast\u0103 modificare genetic\u0103 ar putea contribui la riscuri serioase pentru s\u0103n\u0103tate \u0219i la reducerea speran\u021bei de via\u021b\u0103, scrie LiveScience<\/a><\/span>.<\/p>\n

Oamenii de \u0219tiin\u021b\u0103 credeau anterior c\u0103 pierderea cromozomului Y are un impact redus.
Acest cromozom con\u021bine relativ pu\u021bine gene, dincolo de cele implicate \u00een determinarea sexului masculin.<\/p>\n

Totu\u0219i, tot mai multe dovezi leag\u0103 pierderea cromozomului Y de boli cardiovasculare, cancer \u0219i afec\u021biuni neurodegenerative.<\/p>\n

Pierderea cromozomului Y cre\u0219te odat\u0103 cu v\u00e2rsta<\/h2>\n

Testele genetice avansate arat\u0103 c\u0103 pierderea cromozomului Y devine mai frecvent\u0103 \u00een timp. Aproximativ 40% dintre b\u0103rba\u021bii de 60 de ani prezint\u0103 aceast\u0103 pierdere \u00een unele celule sanguine.<\/p>\n

La 90 de ani, procentul ajunge la circa 57%. Factorii de mediu pot accelera procesul.<\/p>\n

Fumatul \u0219i expunerea la substan\u021be cancerigene cresc probabilitatea pierderii cromozomului Y. Aceasta apare doar \u00een anumite celule, cre\u00e2nd un mozaic genetic \u00een organism.<\/p>\n

Cercet\u0103torii au observat \u0219i c\u0103 celulele lipsite de cromozom Y se pot multiplica mai rapid. Acest avantaj biologic ar putea favoriza dezvoltarea tumorilor.<\/p>\n

Leg\u0103turi cu boli cardiace, cancer \u0219i Alzheimer<\/h2>\n

Studii recente de amploare au asociat pierderea cromozomului Y cu bolile cardiovasculare<\/a><\/span>. B\u0103rba\u021bii peste 60 de ani cu frecven\u021b\u0103 ridicat\u0103 a pierderii prezint\u0103 risc crescut de infarct<\/a><\/span>.<\/p>\n

Au fost identificate leg\u0103turi \u0219i cu boli renale \u0219i disfunc\u021bii ale sistemului imunitar. O frecven\u021b\u0103 mai mare a pierderii cromozomului Y a fost observat\u0103 la pacien\u021bii cu Alzheimer<\/a><\/span>.<\/p>\n

De asemenea, este asociat\u0103 cu evolu\u021bii mai grave \u00een mai multe tipuri de cancer. Pierderea cromozomului Y este frecvent\u0103 \u0219i \u00een celulele canceroase.<\/p>\n

De\u0219i corela\u021biile sunt puternice, rela\u021bia cauzal\u0103 este \u00eenc\u0103 studiat\u0103. Unii cercet\u0103tori consider\u0103 c\u0103 pierderea cromozomului Y ar putea influen\u021ba direct reglarea imunitar\u0103 \u0219i procesele de reparare celular\u0103.<\/p>\n

De ce conteaz\u0103 pierderea cromozomului Y<\/h2>\n

De\u0219i mic, cromozomul Y con\u021bine gene implicate \u00een reglarea activit\u0103\u021bii genetice. Unele dintre acestea ac\u021bioneaz\u0103 ca supresoare tumorale. Altele influen\u021beaz\u0103 func\u021bia imunitar\u0103 \u0219i stabilitatea celular\u0103.<\/p>\n

\u00cen timp ce femeile au doi cromozomi X, b\u0103rba\u021bii se bazeaz\u0103 pe un X \u0219i un Y. Pierderea cromozomului Y poate perturba acest echilibru genetic. Dezechilibrul ar putea contribui la inflama\u021bie \u0219i la progresia bolilor.<\/p>\n

Implica\u021bii pentru \u00eemb\u0103tr\u00e2nire \u0219i longevitate<\/h2>\n

Cercet\u0103torii analizeaz\u0103 dac\u0103 pierderea cromozomului Y ar putea deveni un biomarker. Detectarea timpurie ar putea identifica b\u0103rba\u021bii cu risc crescut de boli asociate v\u00e2rstei. \u00cen\u021belegerea mecanismelor implicate ar putea \u00eembun\u0103t\u0103\u021bi strategiile de preven\u021bie.<\/p>\n

Descoperirea schimb\u0103 percep\u021biile tradi\u021bionale despre \u00eemb\u0103tr\u00e2nirea masculin\u0103 \u0219i genetic\u0103.<\/p>\n","protected":false},"excerpt":{"rendered":"

Pe m\u0103sur\u0103 ce \u00eenainteaz\u0103 \u00een v\u00e2rst\u0103, mul\u021bi b\u0103rba\u021bi \u00ee\u0219i pierd treptat cromozomul Y dintr-o parte din celule. Cercet\u0103ri recente sugereaz\u0103 c\u0103 aceast\u0103 modificare genetic\u0103 ar putea contribui la riscuri serioase … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":677483,"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\/677482"}],"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=677482"}],"version-history":[{"count":0,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/677482\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/media\/677483"}],"wp:attachment":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=677482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=677482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=677482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}