Diurnal variation of α1–2Fuc glycan in lateral olfactory tract is controlled by clock genes.
A, sagittal sections of OB with UEA-I staining obtained at ZT2 and ZT14 from WT mice. Upper and lower bars, 500 and 150 μm, respectively. B, UEA-I staining at ZT2 and ZT14 in Clock mutant mice. Bar, 500 μm. *, glomerular layer of AOB; arrows and arrowheads, lateral olfactory tract. C and D, signal intensity within the glomerular layer of AOB (C) and lateral olfactory tract (D). Values are shown as mean ± S.E. *, p < 0.05, Student's t test, n = 3. E, UEA-I pre-absorption with l-fucose.