Research Article

Long-Term Administration of Abacavir and Etravirine Impairs Semen Quality and Alters Redox System and Bone Metabolism in Growing Male Wistar Rats

Table 4

Effect of 16-week administration of abacavir and etravirine on semen parameters (AB group: group receiving abacavir 60 mg/kg for 16 weeks; ET group: group receiving etravirine 40 mg/kg for 16 weeks; DFI: DNA fragmentation index; HDS: high DNA stainability. Results presented as median (lower quartile–upper quartile); ^abacavir vs. control group, ; etravirine vs. control group, ).

Control groupAB groupET group

Total sperm count [mln]58.9 (40.7-87.6)64.2 (54.4-84.1)63.8 (42.8-75.6)

Sperm concentration [mln/ml]73.7 (50.8-109.5)80.3 (68.0-102.1)79.8 (53.5-94.6)

Subjective motility [%]57.5 (55-65)62.5 (50-65)62.5 (52.5-65)

Sperm morphologyMorphologically normal [%]93.0 (87.2-93.2)88.6 (87.2-92.2)92.9 (83.6-96.1)
Proximal droplet [%]0 (0-0)0 (0-0)0 (0-0)
Distal droplet [%]0.75 (0-0.75)0.62 (0.25-1.50)0.5 (0.37-0.75)
Head abnormalities [%]0 (0-0)0 (0-0.25)0 (0-0.37)
Detached head [%]2.5 (2-3)2.87 (2.5-3.5)1.87 (1.0-4.37)
Acrosome abnormalities [%]0 (0-0)0 (0-0)0 (0-0)
Midpiece defects [%]2.25 (1-6.2)5.5 (2.2-6.2)2.12 (0.87-7.5)
“Dag-like” defect [%]0 (0-0)0 (0-0)0 (0-0)
Bent tail [%]2 (1-2.7)1.6 (1.2-3.0)1.1 (0.37-3.0)
Coiled tail [%]0 (0-0)0 (0-0)0 (0-0)

Plasma membrane and acrosome integrityLive cells with intact acrosome [%]39.7 (33.9-45.2)42.3 (32.3-44.9)44.5 (40.8-50.2)
Live cells with ruptured acrosome [%]0.23 (0.1-0.23)0.17 (0.12-0.31)0.15 (0.12-0.24)
Dead cells with intact acrosome [%]58.9 (52.3-63.7)56.0 (53.5-66.5)54.0 (47.9-57.2)
Dead cells with ruptured acrosome [%]2.09 (1.28-2.19)1.57 (1.25-2.05)1.60 (0.87-2.34)

Mitochondrial activityHigh mitochondrial activity [%]6.54 (5.68-7.85)3.20 (1.71-5.17)3.25 (1.94-4.72)
Low mitochondrial activity [%]93.5 (92.1-94.3)96.8 (94.8-98.3)96.7 (95.3-98.0)

Lipid peroxidationLive without LPO [%]23.3 (20.0-25.7)24.7 (22.5-27.3)24.7 (22.5-27.3)
Live with LPO [%]0.06 (0.03-0.21)0.05 (0.03-0.16)0.05 (0.03-0.16)
Dead without LPO [%]75.7 (73.7-78.2)74.5 (72.1-76.4)74.5 (72.1-76.4)
Dead with LPO [%]0.79 (0.57-0.82)0.68 (0.51-1.15)0.68 (0.51-1.15)

Apoptosis and necrosisLive cells [%]42.6 (31.0-44.2)48.8 (45.7-51.9)54.3 (41.0-60.3)
Dead cells [%]55.1 (54.5-65.5)48.5 (45.4-51.0)43.3 (38.4-55.2)
Apoptotic and necrotic cells [%]1.64 (1.28-2.09)1.85 (1.72-2.27)2.20 (1.33-4.56)
Apoptotic cells [%]0.61 (0.07-0.82)0.75 (0.12-1.25)0.06 (0.02-0.12)

Chromatin statusDFI [%]0.85 (0.61-1.00)1.56 (1.18-2.00)^
HDS [%]18.5 (10.5-20.5)8.0 (6.5-12.1)12.1 (11.6-18.6)