Effect of semen preparation technique and its incubation on sperm quality in the Moroccan population.
In in vitro fertilisation (IVF), sperm preparation as critical part and influencing the sperm quality is especially dependent on the chosen technique itself and incubation parameters including temperature and CO2. In this study, we compared firstly density-gradient centrifugation technique (DGC) to the adapted DGC using the sperm pellet of 80% fraction (DGC/80P) in order to improve the sperm yield. Secondly, this study led to evaluate different sperm incubation conditions based on temperature effect (room temperature (RT = 23°C) versus 35°C) and in the other hand, with or without 5% CO2 during 24 hrs. Based on evaluating sperm conventional parameters and the DNA damage using TUNEL assay, our result showed that DGC/80P increased sperm quality compared to DGC with 25% of improvement. For temperature incubation effect after 24 hrs, 35°C increased the DNA damage and decreased the sperm quality while RT could improve sperm motility by 38%. Moreover, the sperm incubation with 5% CO2 after 24 hrs realised a negative impact on sperm parameters and its DNA damage. Indeed, for current IVF practice, a good sperm quality can be maintained for several hours at room temperature, while the sperm preparation is processed using the DGC/80P without CO2.
Laboratoire de Physiologie et Génétique Moléculaire (PGM), Département de Biologie, Faculté des Sciences Ain Chock, Université HASSAN II, Casablanca, Morocco.|Labomac IVF Centers and Clinical Laboratory Medicine, Casablanca, Morocco.
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S
Aboulmaouahib
Labomac IVF Centers and Clinical Laboratory Medicine, Casablanca, Morocco.|Biochemistry and Immunology Laboratory, Faculty of Sciences, Mohammed V University, Rabat, Morocco.|Place de Nid Aux Iris, Clinique des Iris, IVF Center IRIFIV, Casablanca, Morocco.|Private Clinic of Human Reproduction and Endoscopic Surgery, Anfa Fertility Center, Casablanca, Morroco.
A
A
Madkour
Labomac IVF Centers and Clinical Laboratory Medicine, Casablanca, Morocco.|Biochemistry and Immunology Laboratory, Faculty of Sciences, Mohammed V University, Rabat, Morocco.|Place de Nid Aux Iris, Clinique des Iris, IVF Center IRIFIV, Casablanca, Morocco.|Private Clinic of Human Reproduction and Endoscopic Surgery, Anfa Fertility Center, Casablanca, Morroco.
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I
Kaarouch
Place de Nid Aux Iris, Clinique des Iris, IVF Center IRIFIV, Casablanca, Morocco.
B
B
Saadani
Private Clinic of Human Reproduction and Endoscopic Surgery, Anfa Fertility Center, Casablanca, Morroco.
O
O
Sefrioui
Labomac IVF Centers and Clinical Laboratory Medicine, Casablanca, Morocco.
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N
Louanjli
Reproductive Biology and Medical Cytogenetics Laboratory, Regional University Hospital & School of Medicine, Picardie University Jules Verne, Amiens, France.
H
H
Copin
Laboratoire de Physiologie et Génétique Moléculaire (PGM), Département de Biologie, Faculté des Sciences Ain Chock, Université HASSAN II, Casablanca, Morocco.
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Cadi
Reproductive Biology and Medical Cytogenetics Laboratory, Regional University Hospital & School of Medicine, Picardie University Jules Verne, Amiens, France.
M
M
Benkhalifa
D002499:Centrifugation, Density Gradient; D004249:DNA Damage; D053938:DNA Fragmentation; D005307:Fertilization in Vitro; D006801:Humans; D008297:Male; D009018:Morocco; D055101:Semen Analysis; D012662:Semen Preservation / Q000379:methods*; D013081:Sperm Motility; D013094:Spermatozoa
DNA decays; parameter improvement; semen preparation