title: Regional homogeneity abnormalities affected by depressive symptoms in migraine patients without aura: a resting state study.
abstract: BACKGROUND
  Bidirectional relationship between migraine and depression suggests that there might be some etiological risk factors shared. However, few studies investigated resting state abnormalities affected by depressive symptoms in migraine patients without aura (MWoA).
  
  
  METHODS
  According to their self-rating depression scale (SDS) score, MWoA were divided into twenty in the SDS (+) (SDS > 49) group and 20 in the SDS (-) (SDS ≤ 49) group. Regional homogeneity (ReHo) method were employed to assess local features of spontaneous brain activity between 1) all MWoA and healthy controls, 2) each subgroup and healthy controls, and 3) SDS (-) group and SDS (+) group.
  
  
  RESULTS
  Compared with healthy controls, decreased ReHo in similar regions were shown in the MWoA group and subgroups. It is noteworthy that the caudate showed increased ReHo in the SDS (-) group compared with healthy controls and the SDS (+) group. Moreover, the average ReHo values of the caudate in SDS (-) group were significantly positively correlated with duration of migraine.
  
  
  CONCLUSIONS
  Our results suggested that ReHo patterns in migraine patients may be affected by depressive symptoms and serve as a biomarker to reflect depression severity in MWoA.
authors.affiliation: Information Processing Laboratory, School of Information Engineering, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, China ; Life Sciences Research Center, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi, China.
authors.forename: Dahua
authors.initials: D
authors.lastname: Yu
authors.forename: Kai
authors.initials: K
authors.lastname: Yuan
authors.forename: Ling
authors.initials: L
authors.lastname: Zhao
authors.forename: Fanrong
authors.initials: F
authors.lastname: Liang
authors.forename: Wei
authors.initials: W
authors.lastname: Qin
mesh_terms: D000328:Adult; D003863:Depression / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D020326:Migraine without Aura / Q000503:physiopathology* / Q000523:psychology*; D057566:Self Report; D055815:Young Adult