Research Article

Fatty Acid Profile and Metabolism Are Related to Human Sperm Parameters and Are Relevant in Idiopathic Infertility and Varicocele

Table 2

Medians and interquartile ranges of evaluated seminal parameters normalized to sperm fatty acid (FA) content or sperm count.

Normalized seminal parametersFertility ()
Group 1
Idiopathic infertility ()
Group 2
Infertile Varicocele ()
Group 3
Kruskal-Wallis
value
Pairwise comparisons
Group 1 vs. group 2Group 1 vs. group 3Group 2 vs. group 3

EPA/ARA ratio0.05 (0.15)0.30 (0.68)0.10 (0.30)0.11
SFA/MUFA ratio5.55 (6.95)3.25 (3.15)4.80 (3.08)0.39
n-6/n-3 PUFA ratio0.45 (0.23)0.85 (0.48)0.75 (0.73)
F2-IsoP/ARA ratio2.97 (4.36)10.84 (21.38)27.07 (21.41)
F2-IsoP/sperm/ml ratio0.06 (0.10)1.01 (3.31)1.05 (2.47)
N/ARA ratio7.82 (6.97)13.90 (8.10)12.16 (14.71)
A/ARA ratio1.66 (1.50)3.18 (7.01)2.53 (2.56)0.13
N/n-6 PUFA ratio1.87 (2.44)3.94 (1.60)2.27 (1.45)nsnsns
A/n-6 PUFA ratio0.40 (0.39)0.77 (0.69)0.37 (0.35)
I/n-6 PUFA ratio3.85 (2.90)5.17 (3.44)4.07 (2.51)0.82
N/n-3 PUFA ratio0.86 (0.88)2.83 (1.64)1.58 (2.01)
A/n-3 PUFA ratio0.20 (0.17)0.55 (0.29)0.32 (0.23)
I/n-3 PUFA ratio1.71 (0.99)3.06 (4.40)3.72 (0.80)

EPA: eicosapentaenoic; ARA: arachidonic acid; SFAs: saturated fatty acids; MUFAs: monounsaturated fatty acids; PUFAs: polyunsaturated fatty acids; F2-IsoPs: F2-isoprostanes; N: sperm necrosis; A: sperm apoptosis; I: sperm immaturity. Statistics are reported (, , and ).