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Anti-lysyl oxidase combined with a vacuum device induces penile lengthening by remodeling the tunica albuginea.

ABSTRACT: This study aimed to explore whether and how anti-lysyl oxidase (anti-LOX) combined with a vacuum device (VD) could promote penile lengthening and to evaluate the effect on erectile function. This study was performed on four groups of adult rats: control, anti-LOX, VD (negative pressure value of -300 mmHg), and anti-LOX + VD. Penile length was measured by a modified VD method and verified on exposed length data. Intracavernous pressure (ICP) and maximum ICP/mean arterial pressure (MAP) ratio were recorded to assess erectile function. For corpus cavernosum, LOX activity and concentrations of pyridinoline, desmosine, hydroxyproline, and elastin were analyzed; transmission electron microscope and Hart's elastin staining were performed to monitor microstructural changes. Anti-LOX and VD significantly lengthened the penis by 10.8% (3.75 mm) and 8.2% (2.48 mm) compared with the control group, respectively, while anti-LOX + VD achieved the longest penile size (40.58 ± 0.40 mm) which was 17.4% longer than the control group (34.58 ± 0.54 mm). After 1-week washout, no penile retraction was observed. Meanwhile, exposed penile length data confirmed that the penis in the anti-LOX + VD group was also significantly longer. Anti-LOX inhibited LOX activity to reduce pyridinoline level, which led the penile tunica albuginea remodeling. However, it had no effect on hydroxyproline, desmosine, and elastin levels. Moreover, anti-LOX had no impact on erectile function, which was determined by ICP and ICP/MAP ratio. These results suggest that anti-LOX elongates the penis by reducing pyridinoline, which induces tunica albuginea remodeling. This lengthening effect was more obvious when combined with a VD. All procedures had no impact on erectile function.

SUBMITTER: Li T

PROVIDER: S-EPMC7523611 | biostudies-literature | 2020 Sep-Oct

REPOSITORIES: biostudies-literature

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Anti-lysyl oxidase combined with a vacuum device induces penile lengthening by remodeling the tunica albuginea.

Li Tao T Fu Fu-Dong FD Wu Chang-Jing CJ Qin Feng F Wang Run R Yuan Jiu-Hong JH

Asian journal of andrology 20200901 5

This study aimed to explore whether and how anti-lysyl oxidase (anti-LOX) combined with a vacuum device (VD) could promote penile lengthening and to evaluate the effect on erectile function. This study was performed on four groups of adult rats: control, anti-LOX, VD (negative pressure value of -300 mmHg), and anti-LOX + VD. Penile length was measured by a modified VD method and verified on exposed length data. Intracavernous pressure (ICP) and maximum ICP/mean arterial pressure (MAP) ratio were ...[more]

PMID: 31736474

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Project description:BackgroundNumerous surgical techniques are available for the correction of isolated ventral congenital penile curvature (IVCPC). This study aimed to assess the outcomes and predictors of IVCPC treatment in adults using an incisionless plication technique.Materials and methodsThis prospective case series examined patients with IVCPC who were treated in our hospital between October 2017 and February 2020 using incisionless plication of the tunica albuginea (Essed-Schroeder technique) with a covering pair of absorbable sutures. The primary outcomes were successful correction (defined as a residual curvature ≤15 degrees) and patient satisfaction. Postoperative follow-ups were performed at 3, 6, and 12 months.ResultsA total of 23 patients were treated for IVCPC with a mean (range) age of 25.3 (18-31) years. Eighteen patients (78.3%) were single with cosmetic complaints, whereas the other 5 patients (21.7%) were married and presented with a difficult vaginal intromission. The mean (range) curvature, length, and operative time were 40 (30-50) degrees, 15 (10-19) cm, and 82 (65-100) minutes, respectively. Postoperative penile pain and numbness occurred in 13 patients (56.5 %) and 7 patients (30.4%) only within the first month, respectively. Palpable suture knots were reported in 15 patients (65.5%) without being bothersome up to 12 months. The postoperative means (ranges) of penile curvature and length were significantly different from that of the preoperative values at 3 (5 [0-20] degrees and 14.5 [9-18.5] cm), 6 (5 [0-20] degrees and 14.5 [9-18.5] cm), and 12 months (5 [0-30] degrees and 14.5 [9-18.5] cm; all p < 0.001). Age, preoperative penile curvature, penile length, postoperative pain, wound infections, and knot palpation insignificantly affected curvature recurrence. Seventeen patients (73.9%) were very satisfied with their surgical outcomes.ConclusionsIncisionless plication of the tunica albuginea is effective and safe for the correction of IVCPC in adults with high success and patient satisfaction rates.

Dataset Information

Anti-lysyl oxidase combined with a vacuum device induces penile lengthening by remodeling the tunica albuginea.

Publications

Anti-lysyl oxidase combined with a vacuum device induces penile lengthening by remodeling the tunica albuginea.

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