{"id":32912,"date":"2026-09-03T18:07:00","date_gmt":"2026-09-03T22:07:00","guid":{"rendered":"https:\/\/www.rigicon.com\/?post_type=glossary-term&p=32912"},"modified":"2026-09-04T06:02:00","modified_gmt":"2026-09-04T10:02:00","slug":"disfuncao-endotelial","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/pt-br\/glossary-term\/disfuncao-endotelial\/","title":{"rendered":"Disfun\u00e7\u00e3o Endotelial"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[141],"glossary-product":[],"class_list":["post-32912","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-erectile-dysfunction-treatments"],"acf":{"gt-definition":"<p>A disfun\u00e7\u00e3o endotelial \u00e9 uma condi\u00e7\u00e3o patol\u00f3gica caracterizada pelo comprometimento do funcionamento do endot\u00e9lio, a fina camada de c\u00e9lulas que reveste a superf\u00edcie interna dos vasos sangu\u00edneos e das c\u00e2maras card\u00edacas.<sup>1<\/sup> Essa disfun\u00e7\u00e3o resulta na regula\u00e7\u00e3o anormal do t\u00f4nus dos vasos sangu\u00edneos, fazendo com que os vasos se contraiam ou se estreitem em vez de se dilatarem.<sup>2<\/sup> A condi\u00e7\u00e3o \u00e9 causada principalmente pela diminui\u00e7\u00e3o da biodisponibilidade de \u00f3xido n\u00edtrico (NO) nas paredes dos vasos sangu\u00edneos, levando a uma vasodilata\u00e7\u00e3o prejudicada, aumento da inflama\u00e7\u00e3o vascular e altera\u00e7\u00e3o da permeabilidade vascular.<sup>3<\/sup> No contexto da fun\u00e7\u00e3o er\u00e9til, a disfun\u00e7\u00e3o endotelial afeta as pequenas art\u00e9rias de resist\u00eancia do p\u00eanis e os corpos cavernosos penianos, interrompendo a resposta vasodilatadora normal necess\u00e1ria para a ere\u00e7\u00e3o peniana.<sup>4<\/sup><\/p>\n","gt-synonyms":"Disfun\u00e7\u00e3o endotelial vascular, Disfun\u00e7\u00e3o das c\u00e9lulas endoteliais, DE (nota: pode ser confundida com disfun\u00e7\u00e3o er\u00e9til), Disfun\u00e7\u00e3o vascular, Fun\u00e7\u00e3o endotelial prejudicada, Endoteliopatia","gt-citation":"[1] Bivalacqua TJ, Usta MF, Champion HC, Kadowitz PJ, Hellstrom WJ. Endothelial Dysfunction in Erectile Dysfunction: Role of the Endothelium in Erectile Physiology and Disease. J Androl. 2003;24(S6):S17-S37. DOI: https:\/\/doi.org\/10.1002\/j.1939-4640.2003.tb02743.x\n\n[2] Burnett AL. The role of nitric oxide in erectile dysfunction: implications for medical therapy. J Clin Hypertens (Greenwich). 2006;8(12 Suppl 4):53-62. DOI: https:\/\/doi.org\/10.1111\/j.1524-6175.2006.06026.x\n\n[3] Zou H, Zhang X, Chen W, et al. Vascular endothelium is the basic way for stem cells to treat erectile dysfunction: a bibliometric study. Cell Death Discov. 2023;9:143. DOI: https:\/\/doi.org\/10.1038\/s41420-023-01443-9\n\n[4] Konstantinopoulos A, Giannitsas K, Raptis S, Perimenis P. Endothelial Dysfunction, Erectile Dysfunction and Phosphodiesterase 5 Inhibitors. An Update of the Current Data and Future Perspectives. Drug Target Insights. 2007;2:111-117. DOI: https:\/\/doi.org\/10.1177\/117739280700200021","gt-clinical-context":"<p>A disfun\u00e7\u00e3o endotelial \u00e9 clinicamente significativa em v\u00e1rias condi\u00e7\u00f5es vasculares, particularmente na patog\u00eanese da disfun\u00e7\u00e3o er\u00e9til.<sup>1<\/sup> A condi\u00e7\u00e3o representa um marcador precoce para a aterosclerose e est\u00e1 fortemente associada a doen\u00e7as cardiovasculares, diabetes mellitus, hipertens\u00e3o, hipercolesterolemia e s\u00edndrome metab\u00f3lica.<sup>2<\/sup> No contexto da fun\u00e7\u00e3o er\u00e9til, a disfun\u00e7\u00e3o endotelial prejudica a via do \u00f3xido n\u00edtrico (NO)\/monofosfato de guanosina c\u00edclico (cGMP), que \u00e9 essencial para o relaxamento do m\u00fasculo liso cavernoso e a ere\u00e7\u00e3o peniana.<sup>3<\/sup><\/p>\n<p>Clinicamente, a disfun\u00e7\u00e3o endotelial se manifesta como uma vasodilata\u00e7\u00e3o prejudicada em resposta a est\u00edmulos dependentes do endot\u00e9lio. Na disfun\u00e7\u00e3o er\u00e9til, isso resulta em fluxo sangu\u00edneo insuficiente para os corpos cavernosos, impedindo uma tumesc\u00eancia adequada.<sup>4<\/sup> A condi\u00e7\u00e3o \u00e9 particularmente prevalente em homens com diabetes, hipertens\u00e3o e doen\u00e7a cardiovascular, onde o comprometimento vascular sist\u00eamico afeta a vasculatura peniana.<sup>5<\/sup><\/p>\n<p>As abordagens de tratamento t\u00eam como alvo as causas subjacentes da disfun\u00e7\u00e3o endotelial e incluem modifica\u00e7\u00f5es no estilo de vida (cessa\u00e7\u00e3o do tabagismo, controle do peso, atividade f\u00edsica), medicamentos para melhorar a fun\u00e7\u00e3o endotelial (estatinas, inibidores da ECA) e tratamentos espec\u00edficos para disfun\u00e7\u00e3o er\u00e9til, como os inibidores da fosfodiesterase tipo 5 (PDE-5), que potencializam a via do NO\/cGMP.<sup>6<\/sup><\/p>\n","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":true,"gt-view-count":6},"yoast_head":"<!-- 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