{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T17:10:42Z","timestamp":1788455442853,"version":"build-2803163510"},"reference-count":40,"publisher":"American Diabetes Association","issue":"11","license":[{"start":{"date-parts":[[2016,5,1]],"date-time":"2016-05-01T00:00:00Z","timestamp":1462060800000},"content-version":"vor","delay-in-days":299,"URL":"http:\/\/www.diabetesjournals.org\/site\/license"}],"funder":[{"name":"J.A.DeS\u00e8ve Foundation"},{"DOI":"10.13039\/100007476","name":"Canadian Diabetes Association","doi-asserted-by":"publisher","award":["OG3123843JE"],"award-info":[{"award-number":["OG3123843JE"]}],"id":[{"id":"10.13039\/100007476","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000156","name":"Fonds de Recherche du Qu\u00e9bec - Sant\u00e9","doi-asserted-by":"publisher","award":["26721"],"award-info":[{"award-number":["26721"]}],"id":[{"id":"10.13039\/501100000156","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["diabetesjournals.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2015,11,1]]},"abstract":"<jats:p>There is growing concern over confounding artifacts associated with \u03b2-cell\u2013specific Cre-recombinase transgenic models, raising questions about their general usefulness in research. The inducible \u03b2-cell\u2013specific transgenic (MIP-CreERT1Lphi) mouse was designed to circumvent many of these issues, and we investigated whether this tool effectively addressed concerns of ectopic expression and disruption of glucose metabolism. Recombinase activity was absent from the central nervous system using a reporter line and high-resolution microscopy. Despite increased pancreatic insulin content, MIP-CreERT mice on a chow diet exhibited normal ambient glycemia, glucose tolerance and insulin sensitivity, and appropriate insulin secretion in response to glucose in vivo and in vitro. However, MIP-CreERT mice on different genetic backgrounds were protected from high-fat\/ streptozotocin (STZ)-induced hyperglycemia that was accompanied by increased insulin content and islet density. Ectopic human growth hormone (hGH) was highly expressed in MIP-CreERT islets independent of tamoxifen administration. Circulating insulin levels remained similar to wild-type controls, whereas STZ-associated increases in \u03b1-cell number and serum glucagon were significantly blunted in MIP-CreERT1Lphi mice, possibly due to paracrine effects of hGH-induced serotonin expression. These studies reveal important new insight into the strengths and limitations of the MIP-CreERT mouse line for \u03b2-cell research.<\/jats:p>","DOI":"10.2337\/db15-0272","type":"journal-article","created":{"date-parts":[[2015,7,8]],"date-time":"2015-07-08T02:32:54Z","timestamp":1436322774000},"page":"3798-3807","update-policy":"https:\/\/doi.org\/10.2337\/ada-journal-policies","source":"Crossref","is-referenced-by-count":77,"title":["Phenotypic Characterization of MIP-CreERT1Lphi Mice With Transgene-Driven Islet Expression of Human Growth Hormone"],"prefix":"10.2337","volume":"64","author":[{"given":"Daniel","family":"Oropeza","sequence":"first","affiliation":[{"name":"Institut de recherches cliniques de Montr\u00e9al, Montreal, QC, Canada"},{"name":"Department of Anatomy and Cell Biology, McGill University, Montreal, QC, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nathalie","family":"Jouvet","sequence":"additional","affiliation":[{"name":"Institut de 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