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Table 1 Correlation (r) and significance level (p) between measured variables

From: Sperm cryodamage occurs after rapid freezing phase: flow cytometry approach and antioxidant enzymes activity at different stages of cryopreservation

  Fresh Cooled Thawed
SOD HMP MMP LMP IMIA SOD HMP MMP LMP IMIA SOD HMP MMP LMP IMIA
GPX ns ns 0.448** ns −0.530** ns −0.422** 0.465** ns −0.527** ns ns 0.338* ns −0.425**
SOD   0.362* ns ns ns   ns −0.383* ns 0.399*   ns ns ns −0.424**
HMP    ns −0.705** ns    −0.394* −0.388* 0.510**    ns −0.464** 0.469**
MMP     −0.360* −0.541**     −0.690** −0.420**     −0.960** ns
LMP      ns      ns      ns
  1. GPX glutathione peroxidase, SOD superoxide dismutase, HMP high mitochondrial potential, MMP medium mitochondrial potential, LMP low mitochondrial potential, IMIA intact membrane and intact acrosome
  2. ns not significant
  3. *P < 0.05 and **P < 0.01