The lactose and neuraminlactose content of rat milk and mammary tissue.
Specific analyses of rat milk sugar revealed lactose and N-acetylneuraminyl-lactose. The latter showed multiple, interconvertible forms in certain paper-chromatographic systems. Mean lactose concentrations rose from 33.1mumol/ml at day 0 to 100mumol/ml at day 20 of lactation. Mean N-acetylneuraminyl-lactose concentrations rose from 7.1mumol/ml at day 0 to 25.9mumol/ml at day 4 and thereafter declined, decreasing to zero by day 20 of lactation. Similar data are given on the concentrations of these sugars in mammary tissue of rats. Neuraminyl-lactose was also detected in mouse mammary tissue.
D000818:Animals; D002854:Chromatography, Paper; D005260:Female; D007774:Lactation; D007785:Lactose / Q000032:analysis*; D008321:Mammary Glands, Animal / Q000032:analysis*; D051379:Mice; D008892:Milk / Q000032:analysis*; D009438:Neuraminic Acids / Q000032:analysis*; D011247:Pregnancy; D051381:Rats
D009438:Neuraminic Acids; D007785:Lactose