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Table 2. Kinematic parameters measured on spermatozoa from group I (12 samples) and group II (7 samples) during capacitation performed in the absence and in the presence of 2.5 nM PEA; data are presented as the mean ± SD of all values measured during a 4-hour incubation^*

Motility, %   VSL   VCL   LIN   ALH   Group I                 No PEA   64 ± 15   27 ± 4   86 ± 7||   34 ± 6   3.81 ± 0.4||       With PEA   71 ± 15   29 ± 4   100 ± 8   32 ± 6   4.50 ± 0.5   Group II                 No PEA   79 ± 9   31 ± 4   100 ± 11   33 ± 3   4.50 ± 0.5       With PEA   79 ± 9   29 ± 4   99 ± 11   32 ± 3   4.40 ± 0.6   *Motility, % indicates percent motility (a + b + c); VSL, straight-line velocity; VCL, curvilinear velocity; LIN, linearity; ALH, amplitude of lateral head displacement; and PEA, palmitoylethanolamide   P < .01   P < .001 significance, group I in the presence and absence of PEA   P < .05   ||P < .01 significance, group I vs group II in the absence of PEA

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