SciELO - Scientific Electronic Library Online

 
vol.30 número6Oncocitoma renal: Revisión de nuestra serie de 22 pacientesEvaluación de una técnica de inmunoanálisis para la determinación de testosterona libre índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Actas Urológicas Españolas

versión impresa ISSN 0210-4806

Resumen

MUNUCE, M.J; CARDONA-MAYA, W  y  BERTA, CL. Is there an association between sperm normal morphology and their kinetic displacement?. Actas Urol Esp [online]. 2006, vol.30, n.6, pp.591-597. ISSN 0210-4806.

Objective: To evaluate if there exist an association between the % of normal forms and the kinetic characteristics in human spermatozoa Material and Methods: A retrospective study was performed to analyze semen samples of 203 patients by Computer Assisted Semen Analysis. Sperm morphology was evaluated by the aid of a micrometric objective according to strict criteria. Only the patients presenting >20 x 106 sperm/ml and > 50% of progressive motility were included. Data from 168 patients were divided according to the % of normal forms in three groups a) <4% (n=22), b) between 4-13% (n=89) and c) >14% (n=57). Data collected among groups were compared. In order to select a motile sperm population 35 samples were treated by a discontinuous gradient and the % of normal forms as well as motility parameters evaluated before and after selection. Results: The kinetic analysis showed that sperm concentration, the % of motile and rapid spermatozoa (>25 µm/s) as well as the average path velocity (VAP) and the lateral head displacement (LHD) were increased in association with the % of normal spermatozoa presenting the lowest values in the group <4% with respect to the > 14% group, (p<0.05). Linearity (LIN) remained constant among groups. Kinetic parameters and sperm morphology were significantly increased (p<0.0001) in the selected samples Results showed that the use of gradients even in teratozoospermic samples improves significantly the % of normal forms respect to baseline values (p<0.0002). Conclusions: Our results would support the hypothesis that morphologically better spermatozoa would be associated with those with better movement parameters measured in an objective way. In this manner we could suggest that in vivo the best spermatozoa would comprise one "elite" in the journey through the fertilization site.

Palabras clave : Spermatozoa; Morphology; Strict criteria; Sperm motility; Sperm Concentration; Density gradients.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons