a simple , less than 10-min , hplc of the lipid extract of fibroblasts ( about 2 x 10 ( 6 ) cells ) and measurement of the ratio of the area of sp peak to that of other phospholipids present in the cell-lipid extract show accumulation of sp in niemann-pick type a fibroblasts compared to normal .
C0007634
cell
C0016030
fibroblasts