OBJECTIVE: To assess the effect of varicocele on sperm DNA integrity, mitochondrial activity, lipid peroxidation and acrosome integrity. PATIENTS AND METHODS: In all, 30 patients with a clinically diagnosed varicocele of grade II or III and 32 men without a varicocele were evaluated for sperm DNA fragmentation (comet assay), mitochondrial activity (3,3'-diaminobenzidine assay), lipid peroxidation (malondialdehyde) and acrosome integrity (fluorescent probe labelled peanut agglutinin). RESULTS: The varicocele group showed fewer spermatozoa with intact DNA (grade II, P= 0.040), more cells with inactive mitochondria (class III, P= 0.001), fewer cells with active mitochondria (class I, P= 0.005) and fewer spermatozoa with intact acrosomes (P < 0.001). Finally, no significant differences were observed in lipid peroxidation levels. CONCLUSION: Men with varicocele showed an increase in sperm DNA fragmentation and a reduction in mitochondrial activity and acrosome integrity. However, lipid peroxidation levels remained unchanged.
OBJECTIVE: To assess the effect of varicocele on sperm DNA integrity, mitochondrial activity, lipid peroxidation and acrosome integrity. PATIENTS AND METHODS: In all, 30 patients with a clinically diagnosed varicocele of grade II or III and 32 men without a varicocele were evaluated for sperm DNA fragmentation (comet assay), mitochondrial activity (3,3'-diaminobenzidine assay), lipid peroxidation (malondialdehyde) and acrosome integrity (fluorescent probe labelled peanut agglutinin). RESULTS: The varicocele group showed fewer spermatozoa with intact DNA (grade II, P= 0.040), more cells with inactive mitochondria (class III, P= 0.001), fewer cells with active mitochondria (class I, P= 0.005) and fewer spermatozoa with intact acrosomes (P < 0.001). Finally, no significant differences were observed in lipid peroxidation levels. CONCLUSION:Men with varicocele showed an increase in sperm DNA fragmentation and a reduction in mitochondrial activity and acrosome integrity. However, lipid peroxidation levels remained unchanged.
Authors: M Zavattaro; C Ceruti; G Motta; S Allasia; L Marinelli; C Di Bisceglie; M P Tagliabue; M Sibona; L Rolle; F Lanfranco Journal: J Endocrinol Invest Date: 2018-10-03 Impact factor: 4.256
Authors: Guilherme Jacom Abdulmassih Wood; Bruno C Tiseo; Davi V Paluello; Hamilton de Martin; Marco Aurelio Santo; William Nahas; Miguel Srougi; Marcello Cocuzza Journal: Obes Surg Date: 2020-07-22 Impact factor: 4.129