{"id":295,"date":"2015-06-18T13:11:34","date_gmt":"2015-06-18T20:11:34","guid":{"rendered":"https:\/\/keck.usc.edu\/news\/zebrafish-provide-a-novel-model-to-study-short-bowel-syndrome\/"},"modified":"2026-01-02T17:29:42","modified_gmt":"2026-01-03T01:29:42","slug":"zebrafish-provide-a-novel-model-to-study-short-bowel-syndrome","status":"publish","type":"post","link":"https:\/\/keck.usc.edu\/news\/zebrafish-provide-a-novel-model-to-study-short-bowel-syndrome\/","title":{"rendered":"Zebrafish provide a novel model to study short bowel syndrome"},"content":{"rendered":"\n \n \n\n\n\n\n\n\n\n
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\n\n \n Press Release<\/span>\n\n\n\n<\/div>\n \n \n
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Zebrafish provide a novel model to study short bowel syndrome<\/h1>\n\n\n<\/div>\n \n \n
\n Ellin Kavanagh<\/span>\n \n June 18, 2015<\/span>\n <\/div>\n \n \n
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Keck School of Medicine faculty at Children\u2019s Hospital Los Angeles (CHLA) are providing new hope for babies with short bowel syndrome (SBS) by developing a novel model of SBS in zebrafish, described in a\u00a0paper published online on June 18 by the\u00a0American Journal of Physiology-Gastrointestinal and Liver Physiology<\/em><\/a>.
\nSBS is a highly morbid disease where the small intestine is either shortened or non-functional, leaving the patient with the inability to absorb enough nutrients from food. This results in profound malnutrition, dehydration, and can be fatal.
\nSome patients increase their ability to absorb nutrition through their shorter intestine through a process called adaptation, which is not well understood. The CHLA group is the first to model adaptation in an innovative way that markedly shortens the time to study the condition and the costs of these experiments.
\n\u201cThe new solution from our lab is to study the intestines in small fish that could fit onto a dime,\u201d explained Tracy C. Grikscheit, associate professor of surgery in the Department of Pediatrics at the Keck School of Medicine and principal investigator with USC Stem Cell and The Saban Research Institute of CHLA. \u201cEven though the fish are tiny, under a microscope, we are able to perform the same surgery that is performed on children with short bowel syndrome. And even better, we have pioneered a way to show the resulting changes in the anatomy through three dimensional imaging of the fish, with higher resolution than some scans available to human patients.\u201d
\nThe researchers can \u201cfly\u201d through these tiny fish in three dimensions, and watch the changes in their intestines in order to better understand what is happening for human patients, enabling them to better understand the problem and identify potential solutions.
\n\u201cThe three-dimensional reconstructions of these fish shown in our publication make it clear that the changes in the fish intestine after this surgery are just like those seen in the babies we care for,\u201d said Grikscheit. \u201cAs a pediatric surgeon, my lab has only one goal: to find better options for children with short bowel syndrome.\u201d
\nOperating on zebrafish may seem like an unlikely decision, but they are increasingly being studied by investigators who are interested in stem and progenitor cells because these cells have a high capacity for regeneration and have many similarities to humans. The investigators proved that the model of short bowel syndrome in zebrafish resulted in adaptation of the intestine, and a marked increase in progenitor cells two weeks after surgery. In addition, the investigators could dose the fish with drugs to investigate the mechanism of adaptation just by dropping the compounds in the tank water\u2014a significantly easier and less expensive approach than in other models.
\nMarked adaptation was documented in the fish, and this advance has now opened up a wide range of possible studies in which the cells that proliferate rapidly, as well as the signaling pathways that promote adaptation, can be identified. The hope is that these data can lead to better care for babies who suffer from intestinal failure.
\n\u201cWe and others have struggled to understand adaptation in order to improve our patients\u2019 lives. Because we can only look at tissue from humans at various times when they need surgery, and other models are very expensive and difficult, this is a solid advance that we expect to propel us to a new understanding of a process that is so important to our babies with inadequate intestine,\u201d said first author Kathy Schall, MD, of Children\u2019s Hospital Los Angeles.
\nAdditional contributors include KA Holoyda, CN Grant, DE Levin, ER Torres, A Maxwell, HA Pollack, RA Moats, MR Frey, A Darehzereshki, D Al Alam, and CL Lien, all of Children\u2019s Hospital Los Angeles. Funding was provided by National Institutes of Health award 5R01DK095004 and a California Institute for Regenerative Medicine (CIRM RN3-06425) grant.<\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":35,"featured_media":296,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[192,65,20,436],"class_list":["post-295","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-release","tag-childrens-hospital-los-angeles","tag-department-of-pediatrics","tag-research","tag-usc-stem-cell"],"acf":[],"yoast_head":"\nZebrafish provide a novel model to study short bowel syndrome<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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