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In this study we report on magnetic orientation of human sperms. Samples were taken from 17 donors. Normal human
sperms became oriented with their long axis perpendicular to the magnetic field ( 1 Tesla maximum). Total orientation
was achieved with magnetic field at about one Tesla, while for abnormal sperms the magnetic behavior was different.
The dependence of the measured degree of orientation on the intensity of the magnetic field was in good agreement with
the theoretical equation for the magnetic orientation of diamagnetic substances. As a result for a numerical analysis
based on the equation, the anisotropic diamagnetic susceptibility of normal sperm was found to be ▵χ= 8×10-20 J/T2. The
degree of orientation was influenced by the alterations in the shape of the head, body or the tail. It has been suggested
that the DNA in the sperm head retain the strong magnetic anisotropy to counter balance the magnetic anisotropy
retained by flagellum microtubules. Recent studies demonstrated a well-defined nuclear architecture in human sperm
nucleus, where the head morphology has significant correlation with sperm chromatin structure assay SCSA. Then as the
methods to evaluate SCSA can be difficult and expensive our simple magnetic orientation technique can be an
alternative to diagnose alteration in DNA.
Lama Sakhnini,Maheen Dairi, andHacene Manaa
"Detection of alterations in human sperm using magnetic orientation techniques", Proc. SPIE 6653, Linear and Nonlinear Optics of Organic Materials VII, 66530Z (13 September 2007); https://doi.org/10.1117/12.731397
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Lama Sakhnini, Maheen Dairi, Hacene Manaa, "Detection of alterations in human sperm using magnetic orientation techniques," Proc. SPIE 6653, Linear and Nonlinear Optics of Organic Materials VII, 66530Z (13 September 2007); https://doi.org/10.1117/12.731397