The purpose of this study is to evaluate the impact of a bariatric surgery (gastric banding, bypass, sleeve gastrectomy) on several parameters (quality of sperm and others biological parameters, lifestyle, quality of life) involved in fertility of obese adult men.
In order to assess how bariatric surgery may influence their fertility parameters, patients will attend to 3 visits : First visit (inclusion, before surgery) : * Signature of consent * Patient interview (Collection of data on background, treatments, socio-demographic characteristics, social and familial environment, food consumption and habits, tobacco and alcohol use, physical activity, libido and quality of life (surveys)) * Clinical examination and anthropometric assessment (BMI, blood pressure, expired CO) * Blood samples (Metabolic and nutritional plasmatic biomarkers ; Plasmatic oxidative stress biomarkers ; antioxidants micronutrients ; hormones of adiposity and inflammation ; sex hormones ; persistent contaminants) * Sperm sample (sperm count-morphology ; DNA fragmentation ; CASA) Bariatric surgery Second visit (6 month follow-up) * Report of adverse events if any * Surveys * Blood and sperm samples Third visit (12 month follow-up) * Report of adverse events if any * Blood and sperm samples
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
SCREENING
Masking
NONE
Enrollment
46
Blood and sperm samples will be done in each visit
Jean Verdier Hospital
Bondy, France
Number of total spermatozoids (NTS) variation
Comparison before/after surgery
Time frame: 6 months after surgery
Number of total spermatozoids (NTS) variation
Comparison before/after surgery
Time frame: 1 year after surgery
sperm caracteristics
Comparison before/after surgery
Time frame: 6 months and 1 year after surgery
Effect of biological parameters on NTS variation
Comparison before/after surgery and search of correlation
Time frame: 6 months and 1 year after surgery
Evaluation of environmental parameters : physical activity
Comparison before/after surgery
Time frame: 6 months and 1 year after surgery
Other spermatic parameters : DNA fragmentation
Comparison before/after surgery
Time frame: 6 months and 1 year after surgery
Other spermatic parameters : CASA
Comparison before/after surgery
Time frame: 6 months and 1 year after surgery
Effect of anthropometric parameters on NTS variation
Comparison before/after surgery and search of correlation
Time frame: 6 months and 1 year after surgery
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Evaluation of environmental parameters : tobacco consumption
Comparison before/after surgery
Time frame: 6 months and 1 year after surgery
Evaluation of environmental parameters : libido
Comparison before/after surgery
Time frame: 6 months and 1 year after surgery
Evaluation of environmental parameters : quality of life
Comparison before/after surgery
Time frame: 6 months and 1 year after surgery