Long-term consequences of bilateral cavernous crush injury in normal and diabetic rats: a functional study

Fabio Castiglione, Maarten Albersen, Salvatore Fiorenzo, Petter Hedlund, Omer Onur Cakir, Carlo Pavone, Hussain M. Alnajjar, Steven Joniau, Asif Muneer, Luis A. Kluth, Felix Campos-Juanatey, Andrea Cocci, Clemens M. Rosenbaum, Malte W. Vetterlein, Enrique Fes, Jan Adamowicz, Trauma and Reconstructive Urology Working Party of the European Association of Urology (EAU) Young Academic Urologists (YAU)

Research output: Contribution to journalArticlepeer-review

Abstract

A recent statement from the European-Society-for-Sexual-Medicine has highlighted the limitations of using the rat model for nerve-sparing prostatectomy. The use of young rats with no comorbidities and the early evaluation of the erectile function (EF) are deemed a source of bias. Our aim was to evaluate the long-term consequences in EF of bilateral nerve cavernous crush- injury (BNCI) in type 1 diabetic (DM) rats 30-male/12-week-old rats were divided into four groups: Sham, BNCI, DM, and BNCI + DM. Sham group underwent an intraperitoneal injection (IP) of saline solution and after 1 month underwent a sham laparotomy. BNCI underwent an IP of saline solution and after 1 month to BNCI. DM underwent an IP of 60 mg/kg-1-streptozotocin (STZ) and after 1 month to a sham laparotomy. BNCI + DM underwent an IP of 60 mg/kg-1-STZ and after 1 month to BNCI. After 5 months from the induction of diabetes, all rats underwent measurement of intracorporeal pressure (ICP) and mean arterial pressure (MAP) during CN-electrostimulation. Multiple groups were compared using Kruskal–Wallis one-way analysis of variance followed by Mann–Whitney U test for post hoc comparisons. Blood glucose-level was higher (p < 0.05) in the groups with DM and BNCI + DM. After 5-months, DM and BNCI + DM also showed a lower weight compared to other groups (p < 0.05). No differences were noted in ICP/MAP between the sham and BNCI. BNCI + DM showed lower ICP/MAP compared to all the groups (p < 0.05). DM Showed lower ICP/MAP compared to Sham and BNCI (p < 0.05). BNCI in rats without comorbidities did not induce long-term erectile dysfunction (ED) suggesting a spontaneous EF recovery. BNCI in DM induced long-term ED. The results of previous short-term studies can only provide evidence on the time to recovery of spontaneous EF as to the actual EF recovery rate.

Original languageEnglish
Pages (from-to)781-785
JournalInternational Journal of Impotence Research
Volume34
Issue number8
Early online date2021
DOIs
Publication statusPublished - 2022

Subject classification (UKÄ)

  • Gynaecology, Obstetrics and Reproductive Medicine
  • Clinical Medicine
  • Surgery

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