Research Article

The Effects of Lutein and Zeaxanthin Supplementation on Brain Morphology in Older Adults: A Randomized, Controlled Trial

Table 2

Brain volume.

M (SD) in mm3
Supplement (N = 33)Placebo (N = 14)Overall sample (N = 47)
PrePostPrePostPrePost

Gray matter
 Global589258 (41075)583090 (43892)598888 (26886)595608 (27435)592127 (37387)586819 (39829)
 Regions-of-interest (ROIs)
  Prefrontal102435 (10156)101378 (10354)105206 (7147)104517 (6733)103260 (9372)102313 (9460)
  Orbitofrontal23839 (2388)23809 (2208)23430 (1645)23590 (1719)23717 (2184)23744 (2058)
  Anterior cingulate7989 (1319)7910 (1447)7887 (1055)7864 (1102)7958 (1236)7896 (1341)
  Medial temporal27361 (2589)27234 (2558)27063 (2342)27234 (2658)27212 (2496)27234 (2559)
  Hippocampus8681 (989)8407 (1050)9144 (743)8962 (886)8819 (939)8572 (1027)

White matter
 Global437384 (74298)432185 (81221)427438 (40081)423846 (39899)434422 (65691)429701 (71090)
 Regions-of-interest (ROIs)
  Prefrontal84364 (8774)83736 (10028)83119 (7414)82317 (7317)83994 (8332)83313 (9247)
  Orbitofrontal18494 (2083)18421 (2345)18141 (1484)18083 (1531)18389 (1915)18313 (9247)
  Anterior cingulate9228 (902)9160 (951)9336 (696)9294 (699)9260 (840)9200 (878)
  Medial temporal17092 (2499)16955 (2736)16803 (2039)16961 (2015)17006 (2353)16957 (2521)

Lateral ventricle33250 (15696)35066 (16500)28855 (11638)30229 (12088)31941 (14622)33625 (15352)
White matter hypointensities7759 (14588)8090 (16083)5543 (4446)5625 (4690)7099 (12437)7356 (13692)

Note: All volumes are corrected for intracranial volume (ICV) and have been rounded to the nearest mm3. indicates a significant change from pre- to postintervention, , controlling for age and Clinical Dementia Rating (CDR) score.