Human Reproduction, Vol. 10, No. 1, pp. 120-124, 1995
© 1995 European Society of Human Reproduction and Embryology
Intracellular calcium increase and acrosome reaction in response to progesterone in human spermatozoa are correlated with in-vitro fertilization
Dipartimento di Fisiopatologia Clinica, Unita di Andrologidà and Università di Firenze viale Piericcini, 6-50139 Firenze, Italy 1 Clinica Ostetrica e Ginecologica, Università di Firenze viale Piericcini, 6-50139 Firenze, Italy
Correspondence: 2To whom correspondence should be addressed
In this study we have investigated responsiveness to progesterone in spermatozoa from a group of unselected male partners of couples undergoing in-vitro fertilization (IVF). We evaluated progesterone-stimulated intracellular Ca2+ ([Ca2+]i) and percentage increase in acrosome reaction in the same sperm sample used for oocyte inseminations. [Ca2+]i was measured with a fluorimetric method, while the acrosome reaction was assessed using a fluorescent probe (fluorescein isothiocyanate-labelled peanut lectin). The average percentage [Ca2+]i as well as the rate of increase in the frequency of acrosome reaction following progesterone challenge were significantly lower (P < 0.005) in the group of patients with a fertilization rate <50%. In addition, significant correlations between the fertilization rate and the progesterone-stimulated [Ca2+]i and acrosome reaction increases (r = 0.78 and r = 0.79 respectively) were observed. Furthermore, in cases of fertilization failure, no increase of [Ca2+]i or acrosome reaction was observed in response to progesterone with the exception of one case. Our results indicate that [Ca2+]i and acrosome reaction increases in response to progesterone can be of value in the prediction of sperm fertilizing ability. As the two parameters were significantly correlated to each other (r = 0.86), the two assays have similar IVF predictive value and might be used interchangeably as a diagnostic tool in the assignment of male patients to the different kinds of assisted fertilization techniques.
Key words: acrosome reaction/intracellular calcium/in-vitro fertilization/progesterone
Submitted on April 21, 1994; accepted on September 12, 1994.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
S. Costello, F. Michelangeli, K. Nash, L. Lefievre, J. Morris, G. Machado-Oliveira, C. Barratt, J. Kirkman-Brown, and S. Publicover Ca2+-stores in sperm: their identities and functions Reproduction, September 1, 2009; 138(3): 425 - 437. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. F. Malo, J. J. Garde, A. J. Soler, A. J. Garcia, M. Gomendio, and E. R.S. Roldan Male Fertility in Natural Populations of Red Deer Is Determined by Sperm Velocity and the Proportion of Normal Spermatozoa Biol Reprod, April 1, 2005; 72(4): 822 - 829. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. Y. Liu and H.W.G. Baker High frequency of defective sperm-zona pellucida interaction in oligozoospermic infertile men Hum. Reprod., February 1, 2004; 19(2): 228 - 233. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. C. Kirkman-Brown, E. L. Punt, C. L. R. Barratt, and S. J. Publicover Zona Pellucida and Progesterone-Induced Ca2+ Signaling and Acrosome Reaction in Human Spermatozoa J Androl, May 1, 2002; 23(3): 306 - 315. [Full Text] [PDF] |
||||
![]() |
S. Jagannathan, E. L. Punt, Y. Gu, C. Arnoult, D. Sakkas, C. L. R. Barratt, and S. J. Publicover Identification and Localization of T-type Voltage-operated Calcium Channel Subunits in Human Male Germ Cells. EXPRESSION OF MULTIPLE ISOFORMS J. Biol. Chem., March 1, 2002; 277(10): 8449 - 8456. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. Rosenbusch, M. Schneider, R. Kreienberg, and C. Brucker Cytogenetic analysis of human zygotes displaying three pronuclei and one polar body after intracytoplasmic sperm injection Hum. Reprod., November 1, 2001; 16(11): 2362 - 2367. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Moomjy, L. T. Colombero, L. L. Veeck, Z. Rosenwaks, and G. D. Palermo Sperm integrity is critical for normal mitotic division and early embryonic development Mol. Hum. Reprod., September 1, 1999; 5(9): 836 - 844. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Luconi, L. Bonaccorsi, M. Maggi, P. Pecchioli, C. Krausz, G. Forti, and E. Baldi Identification and Characterization of Functional Nongenomic Progesterone Receptors on Human Sperm Membrane J. Clin. Endocrinol. Metab., March 1, 1998; 83(3): 877 - 885. [Abstract] [Full Text] |
||||






