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Table 1 Proteoglycan content in cartilage of cyclically loaded rabbit metacarpophalangeal joints and their contra-lateral controls

From: Long-term cyclical in vivoloading increases cartilage proteoglycan content in a spatially specific manner: an infrared microspectroscopic imaging and polarized light microscopy study

Rabbit no. Control PGa (absorbance) Loaded PG (absorbance) Difference
1 2.1 7.0 4.9
2 2.1 2.6 0.5
3 6.5 10.3 3.8
4 5.2 6.5 1.3
5 4.6 6.0 1.4
6 6.3 6.9 0.6
Mean 4.4 6.5 2.1
SD 1.9 2.4 1.8
Significanceb    0.03
  1. aPG content was measured as the mean integrated PG peak (1,185 - 960 cm-1) value from the Fourier Transform Infrared spectra; bstatistical significance was calculated using the two-tailed, paired Student t test (α = 0.05). PG, proteoglycan; SD, standard deviation.