Background: Spinal cord injury (SCI) occurs most often to young men at the peak of their reproductive health. Only 10% of SCI men can father children without medical assistance due to potential impairments in ejaculation and sperm quality. Objective: The main objective of this experimental study was to evaluate the epididymal necrospermiasperm death, after chronic SCI in rat. Materials and Meth...

Azoospermia, cryptozoospermia and necrospermia can markedly decrease the ability of males to achieve pregnancy in fertile females. However, patients with these severe conditions still have the option to be treated by intracytoplasmic sperm injection (ICSI) to become biological fathers. This study analyzed the fertilization ability and the developmental viabilities of the derived embryos after I...

background: spinal cord injury (sci) occurs most often to young men at the peak of their reproductive health. only 10% of sci men can father children without medical assistance due to potential impairments in ejaculation and sperm quality. objective: the main objective of this experimental study was to evaluate the epididymal necrospermia- sperm death, after chronic sci in rat. materials and me...

Balanced reciprocal translocations are associated with reproductive failure. Some reciprocal translocation carriers exhibit azoospermia or oligozoospermia, and an association exists between these chromosomal abnormalities and recurrent abortion. Previous reports have indicated the involvement of chromosome 7 translocations in male infertility and recurrent miscarriage. A translocation breakpoin...

is devoted to factors which might have a deleterious effect upon apparently normal spermatozoa, with chapters on spermigration in the female secretions, special technics in spermatozoal study, the longevity of spermatozoa in vivo, the effect of temperature on the survival of spermatozoa in vitro, and abnormalities in the female which inhibit impregnation. There is a discussion of artificial ins...

is devoted to factors which might have a deleterious effect upon apparently normal spermatozoa, with chapters on spermigration in the female secretions, special technics in spermatozoal study, the longevity of spermatozoa in vivo, the effect of temperature on the survival of spermatozoa in vitro, and abnormalities in the female which inhibit impregnation. There is a discussion of artificial ins...

Se ha demostrado que el recuento de espermatozoides móviles tiende a disminuir a medida que aumenta el estadio del cáncer en los pacientes que depositan su semen en un banco de semen. En un estudio, la concentración media de espermatozoides de los pacientes con seminomas fue de 50 millones/mL, mientras que los enfermos con Tumor de Células Germinales No Seminomatoso (TCGNS) la media descendió a...

Objective: To determine an association of single nucleotide polymorphism the NRF2 gene (RS6721961) with semen parameters primary male infertility patients in Pakistani population.
 Study Design: Comparative cross-sectional study.
 Place and Duration Study: Department Biochemistry, Islamic International Medical College, Rawalpindi, collaboration two private clinics (American Infertilit...

Abstract Background Boule, DAZLA, and DAZ are members of the Deleted in Azoospermia family genes, which play significant roles gametogenesis important fertility factors humans. In a few studies, deletion Y chromosomal cluster single nucleotide polymorphisms DAZLA gene were reported to affect male fertility, although this is paradoxical because they found both control fertile men. As result, goa...

OBJECTIVES To determine whether there are indications for and benefits from electron microscopy (EM) of sperm during the era of assisted reproductive technology. METHODS The medical history, semen analyses, and EM findings of 55 patients with pure male-factor infertility were reviewed to determine: (1) which semen characteristics (seminal volume, sperm concentration, percent motility, and per...