Effect of freezing on the relative escape force of sperm as measured by a laser optical trap.

Abstract:

OBJECTIVE:To determine the possible effect of freezing on sperm escape force as measured by laser trap. DESIGN:Controlled clinical study. SETTING:Normal volunteers, academic setting. PATIENTS:Normal, healthy volunteers. INTERVENTION:Sperm selection, freezing and thawing. Measurement of relative (sperm) escape force before and after freezing. MAIN OUTCOME MEASURE:Comparison of escape force as a measurement of freezing effects. RESULTS:Wide individual variations noted, with some individuals showing significant increases or decreases. The relative escape force in fresh (76.1 +/- 31.1 mW) and in frozen-thawed samples (75.6 +/- 40.0 mW) were similar. CONCLUSION:Freezing does not affect the relative escape force of normal sperm. Any possible detrimental effect of freezing on sperm may be related to other sperm functions.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Dantas ZN,Araujo E Jr,Tadir Y,Berns MW,Schell MJ,Stone SC

subject

Has Abstract

pub_date

1995-01-01 00:00:00

pages

185-8

issue

1

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(16)57316-6

journal_volume

63

pub_type

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