{"id":2123,"date":"2026-03-25T16:32:56","date_gmt":"2026-03-25T13:32:56","guid":{"rendered":"https:\/\/dmdwarrior.com\/?p=2123"},"modified":"2026-03-25T16:34:33","modified_gmt":"2026-03-25T13:34:33","slug":"differences-between-dmd-and-bmd","status":"publish","type":"post","link":"https:\/\/dmdwarrior.com\/pt\/differences-between-dmd-and-bmd\/","title":{"rendered":"Distrofia Muscular de Duchenne vs. Distrofia Muscular de Becker: Um Guia de Compara\u00e7\u00e3o Completo"},"content":{"rendered":"<p class=\"wp-block-paragraph\">A distrofia muscular de Duchenne (DMD) e a distrofia muscular de Becker (BMD) s\u00e3o ambas doen\u00e7as gen\u00e9ticas que afetam os m\u00fasculos, causando fraqueza e atrofia progressivas, mas diferem em v\u00e1rios aspectos importantes, incluindo a gravidade dos sintomas, a idade de in\u00edcio e as causas gen\u00e9ticas subjacentes. Apesar de compartilharem essa origem gen\u00e9tica comum, existem diferen\u00e7as fundamentais entre as duas condi\u00e7\u00f5es. <strong>Vamos descobrir as diferen\u00e7as entre DMD e BMD.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>\u00cdndice<\/h2><nav><ul><li><a href=\"#differences-between-duchenne-muscular-dystrophy-dmd-and-becker-muscular-dystrophy-bmd\">Diferen\u00e7as entre DMD e BMD<\/a><ul><li><a href=\"#genetic-cause\">Causa gen\u00e9tica<\/a><\/li><li><a href=\"#age-of-onset\">Idade de In\u00edcio<\/a><\/li><li><a href=\"#disease-progression\">Progress\u00e3o da doen\u00e7a<\/a><\/li><li><a href=\"#muscle-weakness\">Fraqueza muscular<\/a><\/li><li><a href=\"#dystrophin-levels\">N\u00edveis de distrofina<\/a><\/li><li><a href=\"#cardiac-and-respiratory-involvement\">Envolvimento card\u00edaco e respirat\u00f3rio<\/a><\/li><li><a href=\"#life-expectancy\">Expectativa de vida<\/a><\/li><li><a href=\"#diagnosis\">Diagn\u00f3stico<\/a><\/li><li><a href=\"#summary-of-differences\">Resumo das diferen\u00e7as<\/a><\/li><\/ul><\/li><li><a href=\"#frequently-asked-questions\">Perguntas frequentes<\/a><ul><li><a href=\"#faq-question-1770032126198\">De acordo com o laudo gen\u00e9tico, meu filho tem DMD ou BMD?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"differences-between-duchenne-muscular-dystrophy-dmd-and-becker-muscular-dystrophy-bmd\">Diferen\u00e7as entre DMD e BMD<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"693\" src=\"https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-1024x693.jpg\" alt=\"Diferen\u00e7as entre distrofia muscular de Duchenne e distrofia muscular de Becker\" class=\"wp-image-2135\" title=\"\" srcset=\"https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-1024x693.jpg 1024w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-300x203.jpg 300w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-768x520.jpg 768w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-1536x1040.jpg 1536w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-18x12.jpg 18w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-620x420.jpg 620w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-150x102.jpg 150w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-696x471.jpg 696w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-1068x723.jpg 1068w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy-1920x1300.jpg 1920w, https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/human-muscle-anatomy.jpg 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"genetic-cause\">Causa gen\u00e9tica<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"duchenne-muscular-dystrophy-dmd\">Distrofia Muscular de Duchenne (DMD):<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Causada por muta\u00e7\u00f5es no gene da distrofina (localizado no cromossomo X).<\/li>\n\n\n\n<li>Essas muta\u00e7\u00f5es levam \u00e0 aus\u00eancia completa de distrofina, uma prote\u00edna que ajuda a manter a integridade das c\u00e9lulas musculares.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"becker-muscular-dystrophy-bmd\">Distrofia Muscular de Becker (DMO):<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tamb\u00e9m causada por muta\u00e7\u00f5es no gene da distrofina, mas essas muta\u00e7\u00f5es geralmente resultam em uma prote\u00edna distrofina parcialmente funcional.<\/li>\n\n\n\n<li>A distrofina presente na DMO \u00e9 frequentemente mais curta ou menos eficaz, mas ainda assim um tanto funcional. <strong>Saber mais:<\/strong> <a href=\"https:\/\/dmdwarrior.com\/pt\/becker-muscular-dystrophy-bmd\/\" target=\"_blank\" rel=\"noreferrer noopener\">Distrofia Muscular de Becker: Sintomas, Causas e Curas<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"age-of-onset\">Idade de In\u00edcio<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"dmd\">DMD:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Os sintomas geralmente aparecem na primeira inf\u00e2ncia, geralmente entre 2 e 5 anos de idade.<\/li>\n\n\n\n<li>Os primeiros sinais incluem dificuldade para caminhar, correr ou subir escadas.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"bmd\">DMO:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Os sintomas geralmente aparecem mais tarde do que a DMD, geralmente durante a adolesc\u00eancia ou no in\u00edcio dos 20 anos.<\/li>\n\n\n\n<li>O in\u00edcio pode ser mais gradual e sutil em compara\u00e7\u00e3o \u00e0 DMD.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"disease-progression\">Progress\u00e3o da doen\u00e7a<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"dmd-1\">DMD:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A progress\u00e3o da doen\u00e7a na DMD \u00e9 r\u00e1pida e grave. A maioria das crian\u00e7as perde a capacidade de andar por volta dos 12 anos.<\/li>\n\n\n\n<li>Ela leva a complica\u00e7\u00f5es card\u00edacas e respirat\u00f3rias graves que podem encurtar a expectativa de vida, com muitos indiv\u00edduos afetados vivendo at\u00e9 o final da adolesc\u00eancia ou o in\u00edcio dos 20 anos.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"bmd-2\">DMO:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A DMB progride mais lentamente que a DMD.<\/li>\n\n\n\n<li>Os indiv\u00edduos podem manter a capacidade de andar at\u00e9 os 30 ou 40 anos, e a gravidade da fraqueza muscular \u00e9 geralmente menos pronunciada.<\/li>\n\n\n\n<li>A expectativa de vida geralmente \u00e9 normal ou quase normal, embora alguns possam desenvolver problemas card\u00edacos ou respirat\u00f3rios mais tarde na vida.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"muscle-weakness\">Fraqueza muscular<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"dmd-3\">DMD:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A fraqueza muscular na DMD geralmente \u00e9 grave e afeta os m\u00fasculos proximais (aqueles mais pr\u00f3ximos do centro do corpo), como quadris, coxas e ombros.<\/li>\n\n\n\n<li>Essa fraqueza leva \u00e0 m\u00e1 postura, dificuldade para ficar de p\u00e9 e dificuldade para caminhar.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"bmd-4\">DMO:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A fraqueza muscular na DMB tende a ser menos grave do que na DMD e progride mais lentamente.<\/li>\n\n\n\n<li>M\u00fasculos semelhantes s\u00e3o afetados, mas o grau de fraqueza geralmente \u00e9 mais leve.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"dystrophin-levels\">N\u00edveis de distrofina<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"dmd-5\">DMD:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>N\u00e3o h\u00e1 distrofina detect\u00e1vel nos m\u00fasculos devido \u00e0 aus\u00eancia completa da prote\u00edna.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"bmd-6\">DMO:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>H\u00e1 alguma distrofina presente, mas ela \u00e9 defeituosa ou insuficiente. A quantidade e a funcionalidade da distrofina determinam a gravidade da doen\u00e7a.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"cardiac-and-respiratory-involvement\">Envolvimento card\u00edaco e respirat\u00f3rio<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"dmd\">DMD:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Complica\u00e7\u00f5es card\u00edacas (cora\u00e7\u00e3o) e respirat\u00f3rias (pulm\u00f5es) s\u00e3o comuns na DMD e tendem a se tornar problem\u00e1ticas \u00e0 medida que o indiv\u00edduo envelhece.<\/li>\n\n\n\n<li>Cardiomiopatia (fraqueza do m\u00fasculo card\u00edaco) e insufici\u00eancia respirat\u00f3ria geralmente contribuem para a morte prematura.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"bmd\">DMO:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Problemas card\u00edacos, especialmente cardiomiopatia, tamb\u00e9m s\u00e3o observados na DMO, mas geralmente s\u00e3o menos graves e se desenvolvem mais tarde na vida.<\/li>\n\n\n\n<li>Problemas respirat\u00f3rios tamb\u00e9m podem ocorrer, mas geralmente surgem mais tarde do que na DMD.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"life-expectancy\">Expectativa de vida<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"dmd\">DMD:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A expectativa de vida \u00e9 normalmente de 20 a 30 anos, com muitos indiv\u00edduos morrendo no final da adolesc\u00eancia ou no in\u00edcio dos 20 anos devido a complica\u00e7\u00f5es card\u00edacas ou respirat\u00f3rias.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"bmd\">DMO:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A expectativa de vida \u00e9 geralmente normal ou quase normal devido \u00e0 progress\u00e3o mais lenta da doen\u00e7a e aos sintomas mais leves, embora problemas card\u00edacos e respirat\u00f3rios ainda possam levar a complica\u00e7\u00f5es mais tarde na vida.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"diagnosis\">Diagn\u00f3stico<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ambas as condi\u00e7\u00f5es podem ser diagnosticadas por meio de testes gen\u00e9ticos (que identificam muta\u00e7\u00f5es no gene da distrofina) ou bi\u00f3psia muscular (para verificar os n\u00edveis de distrofina).<\/li>\n\n\n\n<li>A DMD geralmente \u00e9 diagnosticada mais cedo devido ao seu in\u00edcio mais precoce e aos sintomas mais graves.<\/li>\n\n\n\n<li>A DMO pode ser diagnosticada mais tarde devido \u00e0 sua progress\u00e3o mais branda e lenta.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Experimente agora:<\/strong> <a href=\"https:\/\/dmdwarrior.com\/pt\/duchenne-exon-deletion-tool\/\" target=\"_blank\" rel=\"noreferrer noopener\">DMD ou BMD? Ferramenta de verifica\u00e7\u00e3o de \u00e9xons<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"summary-of-differences\">Resumo das diferen\u00e7as<\/h3>\n\n\n\n<table id=\"tablepress-2\" class=\"tablepress tablepress-id-2\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Recurso<\/th><th class=\"column-2\">Distrofia Muscular de Duchenne (DMD)<\/th><th class=\"column-3\">Distrofia Muscular de Becker (DMO)<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Causa<\/td><td class=\"column-2\">Aus\u00eancia completa de distrofina<\/td><td class=\"column-3\">Distrofina parcial ou defeituosa<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">In\u00edcio<\/td><td class=\"column-2\">2-5 anos de idade<\/td><td class=\"column-3\">Adolesc\u00eancia at\u00e9 o in\u00edcio dos 20 anos<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Progress\u00e3o<\/td><td class=\"column-2\">R\u00e1pido e severo<\/td><td class=\"column-3\">Mais lento e suave<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Fraqueza muscular<\/td><td class=\"column-2\">Grave, afeta os m\u00fasculos proximais<\/td><td class=\"column-3\">Progress\u00e3o mais branda e lenta<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">N\u00edveis de distrofina<\/td><td class=\"column-2\">Sem distrofina<\/td><td class=\"column-3\">Alguma distrofina defeituosa presente<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Card\u00edaco\/Respirat\u00f3rio<\/td><td class=\"column-2\">Complica\u00e7\u00f5es precoces e graves<\/td><td class=\"column-3\">Mais tarde, complica\u00e7\u00f5es mais leves<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">Expectativa de vida<\/td><td class=\"column-2\">Encurtado (in\u00edcio dos 20 anos)<\/td><td class=\"column-3\">Normal ou quase normal<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-2 from cache -->\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Em ess\u00eancia, a DMD \u00e9 a forma mais grave e com in\u00edcio mais precoce, enquanto a BMD \u00e9 mais branda e progride mais lentamente, muitas vezes permitindo uma expectativa de vida mais longa.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Saber mais<\/strong>: <a href=\"https:\/\/dmdwarrior.com\/pt\/duchenne-exon-deletion-tool\/\" target=\"_blank\" rel=\"noreferrer noopener\">Qual terapia de salto de exon \u00e9 a mais adequada para meu filho?<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"frequently-asked-questions\">Perguntas frequentes<\/h2>\n\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list\">\n<div id=\"faq-question-1770032126198\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question\">De acordo com o laudo gen\u00e9tico, meu filho tem DMD ou BMD?<\/h3>\n<div class=\"rank-math-answer\">\n<img loading=\"lazy\" decoding=\"async\" width=\"696\" height=\"398\" src=\"https:\/\/dmdwarrior.com\/wp-content\/uploads\/2024\/12\/dmd-vs-bmd-1024x585.jpg\" class=\"alignright\" alt=\"diferen\u00e7as entre DMD e BMD\" title=\"\">\n<p>Os resultados do teste gen\u00e9tico indicar\u00e3o quais exons foram deletados. Ao consultar o mapa de exons da DMD, voc\u00ea poder\u00e1 determinar se seu filho tem DMD ou BMD. Saiba mais: <a href=\"https:\/\/dmdwarrior.com\/pt\/what-is-exon-deletion-in-duchenne-muscular-dystrophy-dmd\/\">O que \u00e9 Exon Deletion na Distrofia Muscular de Duchenne (DMD)? O que acontece como resultado da Exon Deletion?<\/a><\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Duchenne Muscular Dystrophy (DMD) and Becker Muscular Dystrophy (BMD) are both genetic disorders that affect the muscles, causing progressive weakness and wasting, but they differ in several key aspects, including the severity of symptoms, the age of onset, and the underlying genetic causes. Despite sharing this common genetic origin, there are key differences between the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5528,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[67,66],"class_list":["post-2123","post","type-post","status-publish","format-standard","has-post-thumbnail","category-dmd","tag-becker-muscular-dystrophy","tag-duchenne-muscular-dystrophy"],"_links":{"self":[{"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/posts\/2123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/comments?post=2123"}],"version-history":[{"count":0,"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/posts\/2123\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/media\/5528"}],"wp:attachment":[{"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/media?parent=2123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/categories?post=2123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dmdwarrior.com\/pt\/wp-json\/wp\/v2\/tags?post=2123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}