{"id":2918,"date":"2026-06-01T11:24:47","date_gmt":"2026-06-01T11:24:47","guid":{"rendered":"https:\/\/studenthub.elsevier.com\/es\/?p=2918"},"modified":"2026-06-01T11:26:10","modified_gmt":"2026-06-01T11:26:10","slug":"guia-enfermedad-alzheimer-sintomas-tratamiento-diagnostico","status":"publish","type":"post","link":"https:\/\/studenthub.elsevier.com\/es\/blog\/guia-enfermedad-alzheimer-sintomas-tratamiento-diagnostico\/","title":{"rendered":"Gu\u00eda r\u00e1pida sobre el Alzheimer para estudiantes: patolog\u00eda, s\u00edntomas y progresi\u00f3n"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Junio \u200b\u200bes el <strong>Mes de Concientizaci\u00f3n sobre el Alzheimer y la Salud Cerebral<\/strong>, un mes dedicado a sensibilizar a nivel mundial sobre la salud cerebral, combatir el deterioro cognitivo y brindar apoyo a quienes viven con la enfermedad. A continuaci\u00f3n, os compartimos una gu\u00eda r\u00e1pida de Alzheimer para estudiantes: patolog\u00eda, s\u00edntomas y progresi\u00f3n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Estos d\u00edas nos brindan la oportunidad de destacar el <strong>impacto cl\u00ednico, patol\u00f3gico y social de la enfermedad de Alzheimer<\/strong>, la causa m\u00e1s com\u00fan de demencia en el mundo desarrollado. El Alzheimer se caracteriza por un deterioro cognitivo progresivo, con rasgos patol\u00f3gicos distintivos que incluyen placas extracelulares de beta-amiloide y ovillos neurofibrilares intracelulares compuestos de prote\u00edna tau hiperfosforilada, lo que conduce a disfunci\u00f3n neuronal y atrofia cerebral.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La enfermedad suele afectar el hipocampo, los l\u00f3bulos temporal y parietal, sin afectar la corteza motora y sensorial primaria. <\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Alzheimer&amp;apos;s disease - plaques, tangles, causes, symptoms &amp; pathology\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/v5gdH_Hydes?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Cronolog\u00eda y caracter\u00edsticas patol\u00f3gicas<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La patolog\u00eda de la enfermedad de Alzheimer se desarrolla a lo largo de los a\u00f1os antes de que aparezcan los s\u00edntomas, con acumulaci\u00f3n de amiloide que precede a la patolog\u00eda tau y la p\u00e9rdida sin\u00e1ptica. A medida que la enfermedad progresa, los pacientes experimentan una creciente dependencia de los cuidadores y, finalmente, requieren cuidados institucionales, siendo la muerte a menudo consecuencia de complicaciones como la neumon\u00eda.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"742\" height=\"366\" src=\"https:\/\/studenthub.elsevier.com\/es\/wp-content\/uploads\/sites\/11\/2026\/06\/image_d19d91.png\" alt=\"\" class=\"wp-image-2920\" srcset=\"https:\/\/studenthub.elsevier.com\/es\/wp-content\/uploads\/sites\/11\/2026\/06\/image_d19d91.png 742w, https:\/\/studenthub.elsevier.com\/es\/wp-content\/uploads\/sites\/11\/2026\/06\/image_d19d91.png?resize=300,148 300w\" sizes=\"auto, (max-width: 742px) 100vw, 742px\" \/><\/figure>\n\n\n\n<h6 class=\"wp-block-heading\"><em>Figura 14.7. Cronolog\u00eda de los principales procesos patol\u00f3gicos en la enfermedad de Alzheimer (EA) en relaci\u00f3n con la presentaci\u00f3n cl\u00ednica. Un CDR = 0 indica cognici\u00f3n normal y un CDR = 3 indica demencia grave. (<strong><a href=\"https:\/\/www.clinicalkey.com\/student\/content\/book\/3-s2.0-B9780702083402000149#hl0000706\">El sistema nervioso, cap\u00edtulo 14: Demencia<\/a><\/strong>).<\/em><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La enfermedad de Alzheimer se define por la presencia de placas extracelulares de beta-amiloide y ovillos neurofibrilares intracelulares compuestos de prote\u00edna tau hiperfosforilada.<\/li>\n\n\n\n<li>Las placas amiloides son m\u00e1s frecuentes en el hipocampo, la corteza entorrinal y la am\u00edgdala, y se asocian con el deterioro cognitivo.<\/li>\n\n\n\n<li>Los ovillos neurofibrilares se encuentran en el citoplasma de las neuronas y pueden persistir tras la muerte neuronal como \u00abovillos fantasma\u00bb.<\/li>\n\n\n\n<li>El amiloide tambi\u00e9n puede depositarse en los vasos sangu\u00edneos cerebrales, lo que da lugar a la angiopat\u00eda amiloide cerebral.<\/li>\n\n\n\n<li>Se produce una p\u00e9rdida neuronal y sin\u00e1ptica generalizada, especialmente en el hipocampo y el l\u00f3bulo temporal medial, con degeneraci\u00f3n de las neuronas colin\u00e9rgicas en el n\u00facleo de Meynert.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Presentaci\u00f3n cl\u00ednica y progresi\u00f3n<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La enfermedad de Alzheimer se presenta con p\u00e9rdida progresiva de la memoria epis\u00f3dica, a menudo acompa\u00f1ada de apraxia, afasia, agnosia y deterioro de la funci\u00f3n ejecutiva.<\/li>\n\n\n\n<li>Los s\u00edntomas iniciales incluyen dificultad para encontrar palabras, planificar y realizar tareas visoespaciales; La personalidad y el comportamiento social se conservan relativamente hasta las etapas avanzadas.<\/li>\n\n\n\n<li>Los pacientes pueden volverse repetitivos, extraviar objetos y experimentar desorientaci\u00f3n topogr\u00e1fica.<\/li>\n\n\n\n<li>Las manifestaciones tard\u00edas incluyen mioclon\u00edas, convulsiones, agitaci\u00f3n, delirios y, finalmente, dependencia de cuidadores para todas las actividades de la vida diaria.<\/li>\n\n\n\n<li>\u200b\u200bLa muerte suele deberse a complicaciones de la inmovilidad, como la neumon\u00eda.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Factores de riesgo y gen\u00e9tica<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>La edad avanzada es el factor de riesgo m\u00e1s importante para la enfermedad de Alzheimer.<\/li>\n\n\n\n<li>La predisposici\u00f3n gen\u00e9tica incluye el alelo APOE e4, que aumenta el riesgo, y el alelo APOE e2, que es protector.<\/li>\n\n\n\n<li>Los casos familiares se asocian con mutaciones en los genes APP, PSEN1 y PSEN2.<\/li>\n\n\n\n<li>El bajo nivel educativo, la escasa participaci\u00f3n social, el accidente cerebrovascular, la depresi\u00f3n y el consumo excesivo de alcohol son factores de riesgo adicionales.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Diagn\u00f3stico y tratamiento <\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 El diagn\u00f3stico se basa en las caracter\u00edsticas cl\u00ednicas t\u00edpicas y se apoya en las pruebas de imagen (TC\/RM que muestran atrofia cerebral, especialmente en los l\u00f3bulos temporales). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 El diagn\u00f3stico definitivo requiere histopatolog\u00eda, pero el diagn\u00f3stico cl\u00ednico suele ser preciso. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 El tratamiento incluye: Inhibidores de la acetilcolinesterasa (donepezilo, galantamina, rivastigmina) para la enfermedad leve a moderada, y memantina para la enfermedad moderada a grave. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2022 Entre las terapias modificadoras de la enfermedad emergentes se incluyen los anticuerpos monoclonales anti-beta-amiloide, que requieren monitorizaci\u00f3n para detectar anomal\u00edas en las im\u00e1genes relacionadas con el amiloide.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Medications for Alzheimer disease: Nursing Pharmacology\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/QPH5WaZYllo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Recursos relacionados<\/strong><\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>V\u00eddeo de Osmosis: <a href=\"https:\/\/www.osmosis.org\/learn\/Alzheimer_disease\">Enfermedad de Alzheimer (explicaci\u00f3n en v\u00eddeo)<\/a><\/em><\/li>\n\n\n\n<li><em>V\u00eddeo de Osmosis: <a href=\"http:\/\/osmosis.org\/learn\/Alzheimer_disease:_Clinical_sciences\">Enfermedad de Alzheimer: Ciencias Cl\u00ednicas<\/a><\/em><\/li>\n\n\n\n<li><em>Libro Medicine in a day: Revision Notes, cap\u00edtulo 13 \u201cNeurology in an Hour &#8211; Cognitive Neurology: Alzheimer\u2019s Disease\u201d disponible en <a href=\"https:\/\/www.clinicalkey.com\/student\/content\/book\/3-s2.0-B9780323870986000138#hl0001716\">ClinicalKey Student<\/a><\/em><\/li>\n\n\n\n<li><em>Libro Crash Course Neurology &amp; Ophthalmology, cap\u00edtulo 21 \u201cDementia \u2013 Primary neurodegenerative dementias\u201d, disponible en <a href=\"https:\/\/www.clinicalkey.com\/student\/content\/book\/3-s2.0-B978044311556100021X#hl0000271\">ClinicalKey Student<\/a><\/em><\/li>\n\n\n\n<li><em>Libro Clinical Neuroscience, cap\u00edtulo 12 \u00abDementia\u00bb, disponible en <a href=\"https:\/\/www.clinicalkey.com\/student\/content\/book\/3-s2.0-B9780443103216000126?origin=share&amp;title=Clinical+Neuroscience&amp;meta=2014%2C+Johns%2C+Paul%2C+BSc+BM+MSc+FRCPath&amp;img=https%3A%2F%2Fcdn.clinicalkey.com%2Fck-thumbnails%2FC20090355117%2Fcov200h.gif\">ClinicalKey Student<\/a><\/em><\/li>\n\n\n\n<li><em>Libro Psychiatry: An Illustrated Colour Text, cap\u00edtulo 39 \u201cDementia Diagnosis, Alzheimer\u2019s Disease\u201d, disponible en <a href=\"https:\/\/www.clinicalkey.com\/student\/content\/book\/3-s2.0-B9780323935807000393#hl0000235\">ClinicalKey Student<\/a><\/em><\/li>\n\n\n\n<li><em>Libro The Nervous System, cap\u00edtulo 14 \u00abDementia\u00bb, disponible en <a href=\"https:\/\/www.clinicalkey.com\/student\/content\/book\/3-s2.0-B9780702083402000149?origin=share&amp;title=The+Nervous+System&amp;meta=2023%2C+Michael-Titus%2C+Adina+T.&amp;img=https%3A%2F%2Fcdn.clinicalkey.com%2Fck-thumbnails%2FC2014002401X%2Fcov200h.gif\">ClinicalKey Student<\/a><\/em><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Contenido desarrollado con ClinicalKey Student y StudyFinder AI, la nueva mejora de IA dise\u00f1ada para ayudarte a encontrar lo que necesitas m\u00e1s r\u00e1pido (versi\u00f3n en ingl\u00e9s).<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/studenthub.elsevier.com\/en\/studyfinder\/\">Haz clic aqu\u00ed para comprobar si tienes acceso a StudyFinder AI a trav\u00e9s de tu instituci\u00f3n.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Junio \u200b\u200bes el Mes de Concientizaci\u00f3n sobre el Alzheimer y la Salud Cerebral, un mes dedicado a sensibilizar a nivel mundial sobre la salud cerebral, combatir el deterioro cognitivo y brindar apoyo a quienes viven con la enfermedad. A continuaci\u00f3n, os compartimos una gu\u00eda r\u00e1pida de Alzheimer para estudiantes: patolog\u00eda, s\u00edntomas y progresi\u00f3n. Estos d\u00edas [&hellip;]<\/p>\n","protected":false},"author":164,"featured_media":2919,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[4,56,55],"tags":[],"class_list":["post-2918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-enfermeria","category-medicina"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Gu\u00eda r\u00e1pida sobre Alzheimer: patolog\u00eda, s\u00edntomas y progresi\u00f3n<\/title>\n<meta name=\"description\" content=\"Gu\u00eda r\u00e1pida sobre el Alzheimer: 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