Questionnaire about cannabis consumption
BehavioralQuestionnaire about cannabis consumption will be assessed to infertile male exposed to cannabis and infertile male not exposed to cannabis.
NCT Number: NCT02932527
Lifestyle and environmental factors can disrupt development and testicular function. In France, cannabis is the most widely used illicit substance and about 8% of adults between 18 and 64 years smoke cannabis at least once a year, and mostly men under 45 years. Endocannabinoids are lipid mediators that share some effects with the active ingredients of cannabis. Cannabis and endocannabinoids act via two types of endogenous receptors which were detected at different levels of the reproductive system and are involved in the central and local regulation of the gonad. Cannabis use may alter the normal regulation of the endocannabinoid system. In males, the regulation of the endocannabinoid system is critical for Sertoli and Leydig cells functions, germ cell differentiation, maturation of sperm nucleus and sperm quality. The cannabis can have a negative impact on sperm parameters, capacitation and acrosome reaction. Cannabinoids may decrease testosterone synthesis and induce apoptosis of Sertoli cells. Studies on the effect of cannabinoids on male fertility are scarce or nonexistent in infertile men because of ethical considerations and bias due to consumption often underreported. Investigators hypothesized that cannabis use may alter sperm nuclear quality. Investigators want to explore this hypothesis conducting a multicentric prospective study exposed/non-exposed in infertile men who are consulting for Medically Assisted Reproductive Technologies (ART). To reach this study, it is planned to include a total of 200 subjects taking into account any exclusions.
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Notify Me18 year–60 year
Male
Interventional
Not applicable
Caen University Hospital, Caen, France
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
Exclusion criteria
Questionnaire about cannabis consumption will be assessed to infertile male exposed to cannabis and infertile male not exposed to cannabis.
blood intake is done for infertile male exposed and infertile male not exposed.
Semen samples are collected for infertile male exposed and infertile male not exposed.
Time frame: Day 1
Spermatic aneuploidy rate is evaluated for patients exposed and not exposed to cannabis
Time frame: Day 1
Consumption level are evaluated for patients exposed to cannabis, using questionnaire
Time frame: Day 1
cannabinoids levels in blood are evaluated for patients exposed and not exposed to cannabis
Time frame: Day 1
Time frame: Day 1
Time frame: Day 1
Time frame: Day 1
Mean vacuole area threshold is measured with Receiver Operating Characteristic curves
Time frame: Day 1
Correlation coefficient between vacuole areas and sperm DNA fragmentation are evaluated by TUNEL analysis
Time frame: Day 1
Correlation coefficient between vacuole areas and abnormal chromatin condensation is evaluated by aniline blue staining
Time frame: Day 1
Correlation coefficient between vacuole areas and telomere number, distribution and length is evaluated by quantitative FISH
University Hospital, Rouen
Other
Effect of Cannabis Consumption on Sperm Nuclear Quality in Infertile Men : a Prospective Exposed / Unexposed Study
Acronym: CANNASPERM
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