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Effects of photoperiod on epididymal and sperm morphology in a wild rodent, the viscacha (Lagostomus maximus maximus)
(Hindawi Publishing Corporation, 2013-03)
The viscacha (Lagostomus maximus maximus) is a seasonal South American wild rodent. The adult males exhibit an annual reproductive cycle with periods of maximum and minimum gonadal activity. Four segments have been identified ...
Expression of epithelial cadherin in the human male reproductive tract and gametes and evidence of its participation in fertilization
(Oxford University Press, 2008-12)
Epithelial cadherin (E-cadherin) has been involved in several calcium-dependent cell-cell adhesion events; however, its participation in gamete interaction has not been fully investigated. Our results have demonstrated ...
The galectin-1-glycan axis controls sperm fertilizing capacity by regulating sperm motility and membrane hyperpolarization
(Federation Amer Soc Exp Biol, 2015-07)
Lectin-glycan recognition systems play central roles in many physiologic and pathologic processes. Here, we identified a role for galectin-1 (Gal-1), a highly conserved glycan-binding protein, in the control of sperm ...
Lipid biochemical and biophysical changes in rat spermatozoa during isolation and functional activation in vitro
(Society for the Study of Reproduction, 2015-10)
n spermatozoa isolated from rat epididymis, lipids are differentially modified after in vitro induction of capacitation (Cap) and the acrosomal reaction (AR). This study uses Laurdan fluorescence generalized polarization ...
Heads or tails? Structural events and molecular mechanisms that promote mammalian sperm acrosomal exocytosis and motility
(Wiley, 2012-01)
Sperm structure has evolved to be very compact and compartmentalized to enable the motor (the flagellum) to transport the nuclear cargo (the head) to the egg. Furthermore, sperm do not exhibit progressive motility and are ...
Actividad reproductiva de la tuza Pappogeomys merriami merriami (Rodentia: Geomyidae) de Chalco, México
(Anales del Instituto de Biología serie Zoología, 2009)
Melatonin protective role in mouse cauda epipidymal spermatozoa damage induced by sodium arsenite Rol protector de la melatonina en el daño de espermatozoides de cauda epididimaria en ratón producido por arsenito de sodio
(2013)
We evaluated the sperm parameters such as cauda epididymis weight, sperm count, sperm morphology and sperm DNA stability of adult CF-1 male mice treated daily (oral exposure) with the toxic sodium arsenite (As, 7.0 mg/kg/body ...
Germ Cell Transplantation in Felids: A Potential Approach to Preserving Endangered Species
(Amer Soc Andrology, Inc, 2012-03-01)
With the exception of the domestic cat, all members of the family Felidae are considered either endangered or threatened. Although not yet used for this purpose, spermatogonial stem cell (SSC) transplantation has a high ...
Detection of Toxoplasma gondii in the reproductive system of male goats
(Colégio Brasileiro de Parasitologia Veterinária, 2010-09-01)
Caprinos machos, em idade reprodutiva, sorologicamente negativos para Toxoplasma gondii foram distribuídos em três grupos de animais: GI (n = 2) controle (placebo), GII (n = 2) - infectado com 1 × 10(6) taquizoítos (cepa ...
Endocrine disrupter action in ruminants: A study of the effects of Ipomoea carnea in adult male goats
(Elsevier B.V., 2014-06-01)
Ipomoea carnea is a toxic plant in Brazil and other tropical countries that often poisons livestock; its primary toxin is swainsonine. Some substances that interact with the endocrine system have been called endocrine ...