DNA content of cells in human buccal smears. A preliminary study.
The DNA content of the cells from human buccal smears, stained by the Feulgen method, was estimated by absorbtion microdensitometry using a Quantimet 720 D image analyser. It was concluded from measurements that most of the cells in buccal smears contained 2C DNA; however, among the cells from male donors a substantial proportion of cells (about 17%) contained less than 2C DNA. This difference between population of male cells versus female cells was statistically significant. The mean value of DNA content was estimated to be 7.7% lower for male cells than for female cells. The conclusions are preliminary because relatively small samples of cells have been measured.
D002610:Cheek; D004247:DNA / Q000032:analysis*; D003720:Densitometry; D005260:Female; D006801:Humans; D008297:Male; D009061:Mouth Mucosa / Q000032:analysis* / Q000166:cytology; D012737:Sex Factors
D004247:DNA