- Creato: Lunedì, 05 Marzo 2018 19:45
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Reproductive function in male patients with type 1 diabetes mellitus
1S. La Vignera, 1R. A.Condorelli, 1M. Di Mauro, 2D. Lo Presti, 1L. M. Mongio ı, 3G. Russo and 1A. E. Calogero 1Department of Clinical and Experimental Medicine, 2Unit of Pediatrics, Teaching Hospital “Policlinico - Vittorio Emanuele”, and 3Department of Urology, University of Catania, Catania, Italy
SUMMARY This study was undertaken to evaluate conventional and some of the main bio-functional spermatozoa parameters, serum gonadal hormones and didymo-epididymal ultrasound features in patients with type 1 diabetes mellitus (DM1). DM1 affects an increasing number of men of reproductive age. Diabetes may affect male reproduction by acting on the hypothalamic–pituitary–testicular axis, causing sexual dysfunction or disrupting male accessory gland function. However, data on spermatozoa parameters and other aspects of the reproductive function in these patients are scanty. Thirty-two patients with DM1 [27.0 (25.0–30.0 years)] and 20 age-matched fertile healthy men [28.0 (27.25–30.75 years)] were enrolled. Patients with diabetic neuropathy, other endocrine disorders or conditions known to alter spermatozoa parameters were excluded. Each subject underwent semen analysis, blood withdrawal for fasting and post-prandial glycaemia, hormonal analysis and didymo-epididymal ultrasound evaluation before and after ejaculation. Patients with DM1 had a lower percentage of spermatozoa with progressive motility [10.0 (7.0–12.75) vs. 45.0 (42.0–47.75) %; p < 0.01] and a higher percentage of spermatozoa with abnormal mitochondrial function than controls [47.0 (43.0–55.0) vs. 2.0 (1.0–5.0) %; p < 0.01]. Patients also had greater post-ejaculatory diameters of cephalic [11.5 (10.2–13.6) vs. 6.0 (4.0–7.0) mm; p < 0.01] and caudal epididymis [5.5 (4.00–7.55) vs. 3.0 (2.0–4.0) mm; p < 0.01] compared to controls, suggesting a lack of the physiological post-ejaculation epididymal shrinkage. Correlation analysis suggested that progressive motility was associated with fasting glucose (r = 0.68; p < 0.01). The other parameters did not show any signiﬁcant difference. Patients with DM1 had a lower percentage of spermatozoa with progressive motility, impaired mitochondrial function and epididymal post-ejaculatory dysfunction. These ﬁndings may explain why patients with DM1 experience fertility disturbance. Larger multi-centric studies are necessary to conﬁrm these results...