title: Effects of oral antioxidant treatment upon the dynamics of human sperm DNA fragmentation and subpopulations of sperm with highly degraded DNA.
abstract: The primary aim of this study was to determine the effect of oral antioxidant treatment (1500 mg of l-Carnitine; 60 mg of vitamin C; 20 mg of coenzyme Q10; 10 mg of vitamin E; 10 mg of zinc; 200 μg of vitamin B9; 50 μg of selenium; 1 μg of vitamin B12) during a time period of 3 months upon the dynamics of sperm DNA fragmentation following varying periods of sperm storage (0 h, 2 h, 6 h, 8 h and 24 h) at 37 °C in a cohort of 20 infertile patients diagnosed with asthenoteratozoospermia. A secondary objective was to use the sperm chromatin dispersion test (SCD) to study antioxidant effects upon a specific subpopulation of highly DNA degraded sperm (DDS). Semen parameters and pregnancy rate (PR) were also determined. Results showed a significant improvement of DNA integrity at all incubation points (P < 0.01). The proportion of DDS was also significantly reduced (P < 0.05). Semen analysis data showed a significant increase in concentration, motility, vitality and morphology parameters. Our results suggest that antioxidant treatment improves sperm quality not only in terms of key seminal parameters and basal DNA damage, but also helps to maintain DNA integrity. Prior administration of antioxidants could therefore promote better outcomes following assisted reproductive techniques.
authors.affiliation: Servei d'Urologia, Hospital de Sabadell Corporació Sanitària Parc Taulí, Sabadell, Institut Universitari Parc Taulí - UAB, Universitat Autònoma de Barcelona, Campus d'Excelència Internacional, 08193 Bellaterra, Spain. cabad@tauli.cat
authors.forename: C
authors.initials: C
authors.lastname: Abad
authors.forename: M J
authors.initials: MJ
authors.lastname: Amengual
authors.forename: J
authors.initials: J
authors.lastname: Gosálvez
authors.forename: K
authors.initials: K
authors.lastname: Coward
authors.forename: N
authors.initials: N
authors.lastname: Hannaoui
authors.forename: J
authors.initials: J
authors.lastname: Benet
authors.forename: A
authors.initials: A
authors.lastname: García-Peiró
authors.forename: J
authors.initials: J
authors.lastname: Prats
mesh_terms: D000284:Administration, Oral; D000975:Antioxidants / Q000008:administration & dosage*; D001205:Ascorbic Acid / Q000008:administration & dosage; D053627:Asthenozoospermia / Q000188:drug therapy / Q000235:genetics / Q000378:metabolism; D002331:Carnitine / Q000008:administration & dosage; D004249:DNA Damage / Q000187:drug effects*; D053938:DNA Fragmentation / Q000187:drug effects*; D005260:Female; D006801:Humans; D007248:Infertility, Male / Q000188:drug therapy* / Q000235:genetics / Q000378:metabolism; D008297:Male; D011247:Pregnancy; D018873:Pregnancy Rate; D027724:Reproductive Techniques, Assisted; D013094:Spermatozoa / Q000187:drug effects* / Q000502:physiology; D014451:Ubiquinone / Q000008:administration & dosage / Q000031:analogs & derivatives; D014810:Vitamin E / Q000008:administration & dosage; D014815:Vitamins / Q000008:administration & dosage
chemical_list: D000975:Antioxidants; D014815:Vitamins; D014451:Ubiquinone; D014810:Vitamin E; C024989:coenzyme Q10; D001205:Ascorbic Acid; D002331:Carnitine