Figure 3.Immunofluorescence staining of the liver. Red signifies IL-6. IL-6 expression is observed along the wall of the interlobular vein. The 67-week-old mice joined with 4-week-old mice have decreased fluorescence compared to the 67-week-old mice joined with 8-week mice, suggesting that there is an effect of parabiosis on younger individuals. Abbreviations: CY: control young; CO: control old; O w/4: 67-week-old mice joined with 4-week-old mice; O w/8: 67-week-old mice joined with 8-week-old mice.
