Episodio – RANK/RANKL y la fisiopatología de la osteoporosis | USMLE Step 1

from USMLE DREAMERS · host USMLE DREAMERS

En este episodio analizamos un concepto fundamental en la fisiopatología del sistema óseo: la vía RANK/RANKL y su rol en la diferenciación y activación de los osteoclastos. Partimos con un caso clínico altamente representativo: un grupo de investigadores desarrolla un anticuerpo monoclonal que bloquea la unión entre RANK y RANKL para estudiar su impacto en pacientes con osteoporosis posmenopáusica.A partir de este punto, desglosamos —con claridad y rigor fisiológico— cómo se forman los osteoclastos, cómo actúa osteoprotegerina (OPG) como receptor trampa y cómo el descenso de estrógenos en la menopausia altera este balance, llevando al aumento de la resorción ósea. Explicamos también por qué denosumab funciona como un análogo farmacológico de OPG y qué hallazgos esperarías en una biopsia ósea tras bloquear RANKL.Al final, integramos el caso clínico con la fisiología molecular para que puedas dominar este tema en el Step 1 y entender profundamente la regulación de la actividad osteoclástica.#USMLE #USMLEStep1 #BonePhysiology #RANKL #Osteoprotegerina #Denosumab #Osteoclastos #Osteoporosis #MedicalPodcast #USMLEDreamers

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Episodio – RANK/RANKL y la fisiopatología de la osteoporosis | USMLE Step 1

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