1. Hofmann N, Hilscher B. Use of aniline blue to assess
chromatin condensation in morphologically normal
spermatozoa in normal and infertile men. Hum
Reprod 1991; 6: 979-982.
2. Vincent W. Aoki, Douglas T. Carrell . Human protamines
and the developing spermatid:their structure,
function, expression and relationship with male infertility.
Asian J Androl 2003; 5: 315-324.
3. Foresta C, Zorzi M, Rossato M, Varotto A. Sperm
nuclear instability and staining with aniline blue:
abnormal persistence of histones in spermatozoa in
infertile men. Int J Androl 1992; 15: 330-337
4. Sakkas D, Moffatt O, Manicardi GC, Mariethoz E,
Tarozzi T, Bizzaro D. Nature of DNA damage in ejaculated
human spermatozoa and the possible involvement
of apoptosis. Biology of reproduction 2002; 66:
1061-1067.
5. Sakkas D, Mariethoz E, Manicardi G, Bizzaro D,
Bianchi PG, Bianchi U, Origin of DNA damage in
ejaculated human spermatozoa. Reviews of
Reproduction 1999; 4: 31-37.
6. Liu DY, Baker HW. Relationships between human
sperm acrosin, acrosomes, morphology and fertilization
in vitro. Hum Reprod 1990; 5: 298-303.
7. Bostofte E, Serup J, Rebbe H. Relation between morphologically
abnormal spermatozoa and pregnancies
obtained during a twenty-year follow-up period. Int J
Androl 1982; 5(4): 379-86.
8. Evenson DP, Darzynkiewicz Z, Melamed MR.
Relation of mammalian sperm chromatin heterogeneity
to fertility. Science 1980; 210: 1131-1133.
9. Alexandre C, Bisson JP, David G. Total asthenospermia
with an ultrastructural anomaly of the flagellum
in two sterile brothers (author's transl) J Gynecol
Obstet Biol Reprod 1978; 7: 31-38.
10. Dozortsev D, Rybouchkin A, De Sutter P, Qian C,
Dhont M. Human oocyte activation following intracytoplasmic
injection: the role of the sperm cell. Hum
Reprod 1995; 10: 403-407.
11. Jack, A.H. and Hrudka, F. Patterns and dynamics of
teratospermia induced in rams by parenteral treatment
with ethylene dibromide. J Androl 1996; 16:
194-211.
12. Chemes, H., Fawcett, D.W. and Dym, M. Unusual
features of the nuclear envelope in human spermatogenic
cells. Anat Rec 1979; 192: 493-523.
13. Zamboni, L. Sperm structure and its relevance to
infertility. An electron microscopic study. Arch Pathol
Lab Med 1992; 116: 325-344.
14. Baccetti, B., Burrini, A.G., Collodel, G., Piomboni, P.
and Renieri T.A “miniacrosome” sperm defect causing
infertility in two brothers. J Androl 1991; 12: 104-
111.
15. Liu, D.Y. and Baker, H.W. Disordered acrosome reaction
of spermatozoa bound to the zona pellucida: a
newly discovered sperm defect causing infertility with
reduced sperm±zona pellucida penetration and
reduced fertilization in vitro. Hum Reprod 1994; 9:
1694-1700.
16. Kalahanis, J., Rousso, D., Kourtis, A., Mavromatidis,
G., Makedos, G. and Panidis, D. Round-headed spermatozoa
in semen specimens from fertile and subfertile
men. J Reprod Med 2002; 47: 489-493.
17. Zamboni, L. The ultrastructural pathology of the spermatozoon
as a cause of infertility: the role of electron
microscopy in the evaluation of semen quality. Fertil
Steril 1987; 48: 711-734.