The Scientific World Journal / 2014 / Article / Tab 2

Research Article

Dietary Hyaluronic Acid Migrates into the Skin of Rats

Table 2

Cumulative excretion of radioactivity in urine, feces, and expired air as 14CO2 after single oral administration of  14C hyaluronic acid to rats (dose: 25 mg/kg).

Time (hr)Excretion of radioactivity (% of dose)
UrineFecesExpried airTotal

0–40.0 ± 0.01.5 ± 1.2
81.0 ± 0.345.9 ± 1.9
242.5 ± 0.37.8 ± 1.670.7 ± 1.281.1 ± 1.5
482.7 ± 0.211.0 ± 1.073.4 ± 1.387.0 ± 0.9
722.8 ± 0.211.4 ± 1.074.7 ± 1.588.8 ± 0.9
962.9 ± 0.211.6 ± 1.075.4 ± 1.589.9 ± 1.0
1202.9 ± 0.211.7 ± 1.075.8 ± 1.590.4 ± 1.0
1442.9 ± 0.311.8 ± 1.076.2 ± 1.590.9 ± 1.0
1683.0 ± 0.211.9 ± 1.076.5 ± 1.691.3 ± 1.0

Carcass (168 hr)8.8 ± 0.6

Data are expressed as the mean values ± S.D. of three animals.
—: not determined.

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