{"id":3391,"date":"2020-10-28T16:19:48","date_gmt":"2020-10-28T15:19:48","guid":{"rendered":"https:\/\/dev.retina.ch\/?post_type=netzhauterkrankungen&#038;p=3391"},"modified":"2025-03-19T14:34:45","modified_gmt":"2025-03-19T13:34:45","slug":"x-linked","status":"publish","type":"netzhauterkrankungen","link":"https:\/\/retina.ch\/it\/malattie-della-retina\/x-linked\/","title":{"rendered":"Ereditariet\u00e0 X-cromosomica"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Nel caso di un&#8217;eredit\u00e0 correlata al sesso (trasmissione ereditaria X-cromosomica), solo i maschi contraggono la malattia, mentre le femmine &#8211; senza peraltro essere affette o senza essere massicciamente<br>limitate nella vista &#8211; potrebbero essere portatrici della malattia. La mutazione genetica responsabile di questa forma ereditaria si trova sul cromosoma X. \u00c8 la donna che ha un gene &#8220;malato&#8221; su uno dei due cromosomi X, ma occultato dal gene &#8220;sano&#8221; sul altro suo cromosoma X (recessivo). Il figlio maschio di una portatrice, che ha ereditato il cromosoma X con il gene mutato, si ammaler\u00e0 in quanto il cromosoma Y ereditato dal padre non \u00e8 capace di compensazione come invece farebbe un gene sano sul secondo cromosoma X. Il gene della malattia si trova su uno dei due cromosomi X della madre portatrice sana (XX). La met\u00e0 dei figli maschi possono essere malati, l\u2019altra met\u00e0 potr\u00e0 invece essere sana. La met\u00e0 delle figlie di una portatrice pu\u00f2 essere a sua volta portatrice e l\u2019altra met\u00e0 non avr\u00e0 invece il gene della malattia nel suo corredo genetico. Un padre con una RP X-cromosomica avr\u00e0 figlie che sono tutte portatrici, mentre i figli maschi saranno tutti sani.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/retina.ch\/wp-content\/uploads\/2020\/11\/x-linked-vererbung.jpg\" alt=\"\" class=\"wp-image-4312\" width=\"625\" height=\"485\"\/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Rappresentazione schematica dell&#8217;ereditariet\u00e0 X-cromosomica<br>(nero = malato; bianco = sano; bianco e nero = portatore di geni sani)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La forma X-cromosomica: la madre, nella maggior parte dei casi non affetta, trasmette il gene della malattia.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"h5ap_radio_sources":[],"_FSMCFIC_featured_image_caption":"","_FSMCFIC_featured_image_nocaption":"","_FSMCFIC_featured_image_hide":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[67],"class_list":["post-3391","netzhauterkrankungen","type-netzhauterkrankungen","status-publish","hentry","category-eredita"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ereditariet\u00e0 X-cromosomica &#8226; Retina Suisse<\/title>\n<meta name=\"description\" content=\"In caso di ereditariet\u00e0 X-linked, gli uomini di solito sviluppano la malattia, mentre le donne possono essere portatrici senza sintomi.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/retina.ch\/it\/malattie-della-retina\/x-linked\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ereditariet\u00e0 X-cromosomica &#8226; Retina Suisse\" \/>\n<meta property=\"og:description\" content=\"In caso di ereditariet\u00e0 X-linked, gli uomini di solito sviluppano la malattia, mentre le donne possono essere portatrici senza sintomi.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/retina.ch\/it\/malattie-della-retina\/x-linked\/\" \/>\n<meta property=\"og:site_name\" content=\"Retina Suisse\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/retinasuisse\/\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-19T13:34:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/retina.ch\/wp-content\/uploads\/2020\/11\/x-linked-vererbung.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/retina.ch\\\/it\\\/malattie-della-retina\\\/x-linked\\\/\",\"url\":\"https:\\\/\\\/retina.ch\\\/it\\\/malattie-della-retina\\\/x-linked\\\/\",\"name\":\"Ereditariet\u00e0 X-cromosomica &#8226; 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