{"id":1903,"date":"2025-12-25T19:34:46","date_gmt":"2025-12-25T18:34:46","guid":{"rendered":"https:\/\/www.laboratoireslelegard.com\/?post_type=product&#038;p=1903"},"modified":"2025-12-25T19:48:48","modified_gmt":"2025-12-25T18:48:48","slug":"irritazione-oculare-da-cam","status":"publish","type":"product","link":"https:\/\/www.laboratoireslelegard.com\/it\/product\/irritazione-oculare-da-cam\/","title":{"rendered":"HET-CAM: test di valutazione dell'irritazione oculare"},"content":{"rendered":"<div data-elementor-type=\"product-post\" data-elementor-id=\"1903\" class=\"elementor elementor-1903\" data-elementor-post-type=\"product\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-06bf5d0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"06bf5d0\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6f2a6e1\" data-id=\"6f2a6e1\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7d75f8c elementor-widget elementor-widget-text-editor\" data-id=\"7d75f8c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"w-full\"><div class=\"progressive-markdown-content\"><div class=\"w-full\"><div class=\"progressive-markdown-content\"><div class=\"content-visibility-auto\"><div class=\"content-visibility-auto\"><p><strong>HET-CAM: test alternativo non animale per la valutazione dell'irritazione oculare<\/strong><\/p><\/div><div class=\"content-visibility-auto\"><p>Il <strong>HET-CAM<\/strong> (Hen\u2019s Egg Test \u2013 Chorioallantoic Membrane) \u00e8 oggi il metodo di riferimento quando si tratta di valutare il potenziale irritante di un prodotto cosmetico sugli occhi senza ricorrere alla sperimentazione animale. Conformemente ai requisiti europei (Regolamento CE 1223\/2009) e svizzeri (OCos\/OSAV), questo test utilizza la membrana corioallantoidea di un uovo di gallina incubato: una membrana ultrasottile, molto vascolarizzata ed estremamente sensibile agli agenti chimici irritanti.<\/p><\/div><div class=\"content-visibility-auto\"><h3>Principio del test<\/h3><\/div><div class=\"content-visibility-auto\"><ol><li><strong>Incubazione dell'uovo<\/strong> \u2013 L'uovo viene incubato per 9-10 giorni a 37 \u00b0C, momento in cui la membrana corioallantoidea \u00e8 completamente sviluppata.<\/li><li><strong>Applicazione del prodotto<\/strong> \u2013 Una piccola goccia (10 \u00b5L) del prodotto cosmetico da testare viene depositata direttamente sulla membrana.<\/li><li><strong>Marcatura delle lesioni<\/strong> \u2013 Vengono aggiunti coloranti specifici (generalmente rosso fenolo-solfonato) per evidenziare le alterazioni vascolari: arrossamenti, microcoagulazioni, emorragie o rottura dei vasi.<\/li><li><strong>Osservazione e valutazione<\/strong> \u2013 La membrana viene osservata per 5 minuti, poi dopo 30 minuti. L'entit\u00e0 e la rapidit\u00e0 dei cambiamenti vascolari vengono annotate secondo una tabella di valutazione standardizzata (0 = nessuna irritazione, 5 = irritazione grave).<\/li><\/ol><h3>Vantaggi dell'HET-CAM<\/h3><ul><li><strong>Assenza di animali adulti<\/strong>\u202f: il metodo utilizza un embrione, il che lo classifica tra le tecniche 3R (Replacement).<\/li><li><strong>Elevata sensibilit\u00e0<\/strong>\u202f: anche sostanze leggermente irritanti provocano reazioni vascolari visibili, consentendo una classificazione dettagliata secondo il sistema GHS.<\/li><li><strong>Rapidamente eseguibile<\/strong>\u202f: il protocollo completo richiede meno di un'ora, ideale per le fasi di sviluppo in cui i tempi sono fondamentali.<\/li><li><strong>Costo ridotto<\/strong>\u202f: non sono necessarie attrezzature costose n\u00e9 la cura di animali, il che rende il test economicamente interessante per i laboratori di ricerca e sviluppo.<\/li><\/ul><h3>Limiti da conoscere<\/h3><ul><li><strong>Nessuna misurazione della permeabilit\u00e0 corneale<\/strong>\u202f: a differenza del BCOP o dei modelli di cornea ricostruita, l'HET-CAM non fornisce informazioni dirette sulla penetrazione del prodotto nella cornea.<\/li><li><strong>Interpretazione semiquantitativa<\/strong>\u202f: il punteggio si basa sull'osservazione visiva, il che pu\u00f2 introdurre una variabilit\u00e0 tra gli operatori se i criteri non sono rigorosamente armonizzati.<\/li><li><strong>Applicabilit\u00e0 a formulazioni altamente lipofile<\/strong>\u202f: gli oli densi potrebbero non distribuirsi uniformemente sulla membrana, rendendo talvolta necessaria l'aggiunta di un solvente compatibile.<\/li><\/ul><h3>Integrazione nel fascicolo normativo<\/h3><p>I risultati dell'HET-CAM sono incorporati nel <strong>DIP\/PIF<\/strong> (Scheda informativa sul prodotto \/ Product Information File) e servono a giustificare la classificazione del prodotto come irritante per gli occhi. Sono particolarmente rilevanti per i <strong>creme contorno occhi, mascara, struccanti occhi<\/strong> e qualsiasi altro prodotto che possa entrare in contatto con la zona oculare.<\/p><p>Combinando l'HET-CAM con altri test in vitro (BCOP, RhCE) per coprire la permeabilit\u00e0 corneale, i produttori ottengono una documentazione completa, conforme ai requisiti svizzeri, europei e britannici. Questo approccio olistico rafforza la credibilit\u00e0 scientifica del prodotto, accelera l'ottenimento del numero di notifica e rassicura i consumatori sulla sicurezza dei loro prodotti per la cura degli occhi.<\/p><\/div><br \/><hr \/><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>HET\u2011CAM\u202f: test alternatif non animal pour l\u2019\u00e9valuation de l\u2019irritation oculaire Le HET\u2011CAM (Hen\u2019s Egg Test \u2013 Chorioallantoic Membrane) est aujourd\u2019hui la m\u00e9thode de r\u00e9f\u00e9rence lorsqu\u2019il s\u2019agit d\u2019\u00e9valuer le potentiel irritant d\u2019un produit cosm\u00e9tique sur les yeux sans recourir \u00e0 l\u2019exp\u00e9rimentation animale. Conform\u00e9ment aux exigences europ\u00e9ennes (R\u00e8glement\u202fCE\u202f1223\/2009) et suisses (OCos\/OSAV), ce test exploite la membrane chorioallanto\u00efdienne [&hellip;]<\/p>","protected":false},"featured_media":1738,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[151],"product_tag":[113,116,112,114,115,117],"class_list":{"0":"post-1903","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-analyse","7":"product_tag-activite","8":"product_tag-activity","9":"product_tag-analyse","10":"product_tag-eau","11":"product_tag-micro-organismes","12":"product_tag-water","14":"first","15":"instock","16":"shipping-taxable","17":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>HET\u2011CAM\u202f: test d\u2019\u00e9valuation de l\u2019irritation oculaire<\/title>\n<meta name=\"description\" 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