title: Vasomotor reactivity is similarly impaired in patients with Alzheimer's disease and patients with amyloid hemorrhage.
abstract: Cerebral amyloid angiopathy (CAA) might alter cerebral hemodynamics. Impairment of vasomotor reactivity may constitute a biomarker of amyloid angiopathy and therefore it may be useful to distinguish disorders with CAA from other conditions. The aim of this study was to assess the vasomotor reactivity in two conditions characterized by CAA: Alzheimer's disease and amyloid hemorrhage.
  
  
  METHODS
  We assessed the vasomotor using transcranial Doppler and the breath-holding method.
  
  
  RESULTS
  Responses obtained in controls were higher than in patients with Alzheimer's or with antecedent of amyloid hemorrhage while there was no statistical difference in the comparison between these last two groups.
  
  
  CONCLUSIONS
  The vasomotor reactivity seems to be similarly impaired in Alzheimer's disease and amyloid hemorrhage patients.
authors.affiliation: Neurology Department, Hospital Álvarez-Buylla, Mieres, Spain. manuelmenendez@gmail.com
authors.forename: Manuel
authors.initials: M
authors.lastname: Menendez-Gonzalez
authors.forename: Jorge
authors.initials: J
authors.lastname: Garcia-Garcia
authors.forename: Sergio
authors.initials: S
authors.lastname: Calleja
authors.forename: Jose
authors.initials: J
authors.lastname: Rojo
authors.forename: Renee
authors.initials: R
authors.lastname: Ribacoba
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D015415:Biomarkers / Q000032:analysis; D016022:Case-Control Studies; D016657:Cerebral Amyloid Angiopathy / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D002560:Cerebrovascular Circulation; D016009:Chi-Square Distribution; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D017585:Ultrasonography, Doppler, Transcranial
chemical_list: D015415:Biomarkers