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The aim of this study was to investigate the influence of genetic background on the phenotype of Kif26a-deficient (KO, \u2212\/\u2212) mice. KO mice with both C57BL\/6 and BALB\/c genetic backgrounds were established. Survival rates and megacolon development were compared between these two strains of KO mice. Functional bowel assessments and enteric neuron histopathology were performed in the deficient mice. KO mice with the BALB\/c genetic background survived more than 400\u00a0days without evidence of megacolon, while all C57BL\/6 KO mice developed megacolon and died within 30\u00a0days. Local enteric neuron hyperplasia in the colon and functional bowel abnormalities were observed in BALB\/c KO mice. These results indicated that megacolon and enteric neuron hyperplasia in KO mice are influenced by the genetic background. BALB\/c KO mice may represent a viable model for functional gastrointestinal diseases such as chronic constipation, facilitating studies on the underlying mechanisms and providing a foundation for the development of treatments.<\/jats:p>","DOI":"10.1038\/s41598-021-82785-1","type":"journal-article","created":{"date-parts":[[2021,2,4]],"date-time":"2021-02-04T11:25:08Z","timestamp":1612437908000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Genetic background-dependent abnormalities of the enteric nervous system and intestinal function in Kif26a-deficient mice"],"prefix":"10.1038","volume":"11","author":[{"given":"Yukiko","family":"Ohara","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lisa","family":"Fujimura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akemi","family":"Sakamoto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Youichi","family":"Teratake","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuichi","family":"Hiraoka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haruhiko","family":"Koseki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takeshi","family":"Saito","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4315-5179","authenticated-orcid":false,"given":"Keita","family":"Terui","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tetsuya","family":"Mitsunaga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mitsuyuki","family":"Nakata","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hideo","family":"Yoshida","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masahiko","family":"Hatano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,2,4]]},"reference":[{"key":"82785_CR1","doi-asserted-by":"publisher","first-page":"16372","DOI":"10.1523\/JNEUROSCI.2079-13.2013","volume":"33","author":"T Uesaka","year":"2013","unstructured":"Uesaka, T., Nagashimada, M. & Enomoto, H. 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