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. 2012 Apr 4;32(6):938–951. doi: 10.1038/jcbfm.2012.42

Figure 5.

Figure 5

(A) −ΔIF(560) images of the superior sagittal sinus (SSS) and bilateral MI and MII arterioles at the moment when peak hemoglobin oxygen saturation (SO2) changes occurred. The peak SO2 changes occurred at 29.54, 23.52, and 34.77 seconds for the SSS and bilateral MI and MII arterioles, respectively. Red, yellow, and orange scale bars in the SSS, MI, and MII images denote 100, 60, and 30 μm, respectively. (B) Mean functional SO2 changes (i.e., Inline graphic) in the SSS and bilateral MI and MII arterioles as a function of time. (C) Quantitative analyses of the IF(560) signal changes to forepaw stimulation in the SSS and bilateral MI and MII arterioles. IF(560) was used to probe SO2 changes. IF(560) signals at 29.54 (for the SSS), 23.52 (for the MI), and 34.77 seconds (for the MII) were used for statistical analyses. The error bars indicate the standard deviations of the measured data from six mice; *P<0.05 (Wilcoxon matched-pairs signed-rank test t, n=6). Note that the ipsilateral SSS is the SSS during the ipsilateral-side measurement and the contralateral SSS is the same SSS during the contralateral-side measurement.