Definition:A cerebral arterial disease characterized by constriction of certain arteries at the base of the brain. Blood flow is blocked by the constriction and also by blood clots.
Definition:A connective tissue disease that is characterized by tall stature, elongated extremities, mitral valve prolapse, aortic dilatation, aortic dissection, and subluxation of the lens.
Definition:A muscular dystrophy that has_material_basis_in X-linked mutations in the DMD gene found on the X chromosome. It is characterized by rapidly progressing muscle weakness and muscle atrophy initially involving the lower extremities and eventually affecting the whole body. It affects males whereas females can be carriers. The symptoms start before the age of six and may appear at infancy.
Definition:A breast carcinoma in situ that is characterized by being non-invasive, not having spread outside of the duct into the surrounding breast tissue, has_material_basis_in abnormally proliferating cells, derives_from epithelial cells.
Definition:A neurodegenerative disease that has_material_basis_in autosomal dominant inheritance and is characterized by unwanted choreatic movements, behavioral and psychiatric disturbances and dementia and has_material_basis_in expansion of CAG triplet repeats (glutamine) resulting in neuron degeneration affecting muscle coordination, cognitive abilities.
Definition:A heart disease that is characterized by any structural or functional cardiac disorder that impairs the ability of the heart to fill with or pump a sufficient amount of blood throughout the body.
Definition:A tauopathy that is characterized by memory lapses, confusion, emotional instability and progressive loss of mental ability and results in progressive memory loss, impaired thinking, disorientation, and changes in personality and mood starting and leads in advanced cases to a profound decline in cognitive and physical functioning and is marked histologically by the degeneration of brain neurons especially in the cerebral cortex and by the presence of neurofibrillary tangles and plaques containing beta-amyloid.