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Table 1.

Quantities of covalently bound ceramides and cerebrosides in the stratum corneum of house sparrows from Saudi Arabia and Ohio as determined by thin layer chromatography

Concentration in SC (mg lipid g–1 dry SC mass)
Saudi ArabiaOhio
Dry SC mass (mg) 11.27±2.71 14.18±7.35 
Total lipid 14.22±5.42 11.15±3.79 
Total ceramidesa 2.27±0.65 3.17±0.85 
Ceramide 1b 0.50±0.46 0.98±0.20 
Ceramide 2b 1.63±0.64 2.18±0.71 
Total cerebrosidesa 12.88±5.05 7.99±2.99 
Cerebroside 1 11.31±6.23 6.85±2.73 
Cerebroside 2b 1.19±0.31 1.14±0.31 
Ceramide:cerebroside ratiob 0.21±0.08 0.41±0.05 
Concentration in SC (mg lipid g–1 dry SC mass)
Saudi ArabiaOhio
Dry SC mass (mg) 11.27±2.71 14.18±7.35 
Total lipid 14.22±5.42 11.15±3.79 
Total ceramidesa 2.27±0.65 3.17±0.85 
Ceramide 1b 0.50±0.46 0.98±0.20 
Ceramide 2b 1.63±0.64 2.18±0.71 
Total cerebrosidesa 12.88±5.05 7.99±2.99 
Cerebroside 1 11.31±6.23 6.85±2.73 
Cerebroside 2b 1.19±0.31 1.14±0.31 
Ceramide:cerebroside ratiob 0.21±0.08 0.41±0.05 

Values are means ± s.d., N=11 house sparrows (from Saudi Arabia) and N=8 (from Ohio)

Superscripts indicate statistical significance; aP<0.05; bP<0.003

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