Jean-Guy Vézina

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INTRODUCTION With the advances in penile vibrator stimulation (PVS), most spinal cord injured (SCI) men can self-ejaculate. Oral midodrine may further increase ejaculation success, while maintaining autonomy. Since most SCI men attempt ejaculation for sexual rather than reproductive purposes, self-ejaculation should be emphasized and sensations explored. (More)
OBJECTIVES To provide a questionnaire for assessing the sensations characterizing orgasm. To test the hypothesis that orgasm is related to autonomic hyperreflexia (AHR) in individuals with a spinal cord injury (SCI). SUBJECTS AND METHODS A total of 97 men with SCI, of whom 50 showed AHR at ejaculation and 39 showed no AHR, were compared. Ejaculation was(More)
Most cases of early onset familial Alzheimer's disease (FAD) involve mutations in presenilins (PS1 and PS2) genes. The C-terminal portion of PS2 is a homologue with an apoptosis-linked gene (ALG-3). To characterise the role of PS1 in apoptosis, we overexpressed the corresponding C-terminal fragment of PS1 (PS1-f) under the control of the(More)
OBJECTIVES To explore the effectiveness of various sources of self-stimulation, including oral midodrine, in triggering ejaculation in men with spinal cord injury (SCI), and to document the systematic variations in blood pressure at ejaculation and consider a revised definition of autonomic dysreflexia. PATIENTS AND METHODS The study included 62 men with(More)
OBJECTIVE To evaluate the reliability, efficacy, and safety of vardenafil, 10 mg, for patients with erectile dysfunction. PATIENTS AND METHODS Vardenafil-naive patients completed a 4-week treatment-free run-in phase and a 1-week single-dose vardenafil (10 mg) open-label challenge phase. Responders to vardenafil in the challenge phase were randomized to 12(More)
BACKGROUND Age-related loss of muscle mass and related ailments are of concern due to associations with disabilities and morbidity as well as constituting a substantial healthcare burden. Muscle-strengthening activities and adequate protein ingestion are recommended for all-age adults in an effort to stave off age-related muscle atrophy. Muscle building(More)
A rapid and quantitative flow cytometric method simultaneously identifying cells that incorporated a gene of interest in a transient electroporation and discriminating between dead, live and apoptotic states in a single measurement is presented. An expression vector encoding the gene of interest was cotransfected with a plasmid carrying the green(More)