Pediatric Surgery International

, Volume 35, Issue 1, pp 71–75 | Cite as

Compromised vitality of spermatozoa after contact with colonic mucosa in mice: implications for fertility in colon vaginoplasty patients

  • Seitaro KosakaEmail author
  • Masahiro Takeda
  • Takanori Ochi
  • Katsumi Miyahara
  • Eri Nakamura
  • Norihiro Tada
  • Geoffrey J. Lane
  • Atsuyuki Yamataka
Original Article


Aim of the study

Colon vaginoplasty (CV) is often performed for cloacal malformation (CM). We used mice to study the vitality of spermatozoa after contact with colonic mucosa as a factor contributing to infertility.


Spermatozoa isolated from the epididymides of C57BL/6J male mice (n = 23) were syringed directly into the vaginas (Vag-group) or colons (Colo-group) of female mice (n = 45). Vitality was determined by assessing motility using computer-assisted sperm analysis, viability by staining with SYBR-14 and propidium iodide, and fertility by in vitro fertilization, prior to deposition, and at 5, 10, 30, and 60 min after deposition.

Main results

Motility was significantly decreased in Colo only at 10 and 60 min. Viability of Colo spermatozoa was significant at all assessment times, except at 10 min. Normal fertilization was observed with all Vag spermatozoa, but with Colo, there was arrest of embryo development with spermatozoa collected at 5 and 10 min, and no fertilization with spermatozoa collected at 30 and 60 min.


The vitality of spermatozoa is compromised by contact with colonic mucosa which could contribute to infertility in CM after CV, because their ovaries and fallopian tubes are considered to be normal.


Cloacal malformation Colon vaginoplasty Spermatozoa Infertility 


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Seitaro Kosaka
    • 1
    Email author
  • Masahiro Takeda
    • 1
  • Takanori Ochi
    • 1
  • Katsumi Miyahara
    • 1
  • Eri Nakamura
    • 2
  • Norihiro Tada
    • 2
  • Geoffrey J. Lane
    • 1
  • Atsuyuki Yamataka
    • 1
  1. 1.Department of Pediatric General and Urogenital SurgeryJuntendo University School of MedicineTokyoJapan
  2. 2.Research Institute for Diseases of Old AgeJuntendo University Graduate School of MedicineTokyoJapan

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