Distribution in a density gradient of human erythrocytes: sex-related differences
Micheli, V.; Taddeo, A.; Vanni, A.L.; Pecciarini, L.; Massone, M.; Ricci, M.G.
Bollettino della Societa Italiana di Biologia Sperimentale 60(3): 665-671
1984
ISSN/ISBN: 0037-8771 PMID: 6712836 Document Number: 224935
Differences in erythrocyte distribution on Ficoll-Sodium Metrizoate discontinuous density gradient were evaluated between adult males and females. Testosterone and androstenedione plasma levels were tested in males, oestradiol, progesterone and prolactin in both males and females. Female group showed a much higher proportion of lighter younger erythrocytes than males, while males showed higher proportion of denser older cells. Positive correlation was found between young cell percent and oestradiol level, both in males and females, but no correlation was found with androgen hormones.