{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T02:40:39Z","timestamp":1790476839311,"version":"4.1.0"},"reference-count":32,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2001,12,20]],"date-time":"2001-12-20T00:00:00Z","timestamp":1008806400000},"content-version":"vor","delay-in-days":233,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Diabetic Medicine"],"published-print":{"date-parts":[[2001,5]]},"abstract":"<jats:p> <jats:bold>SUMMARY<\/jats:bold> <\/jats:p><jats:p><jats:bold>Introduction\u2003<\/jats:bold> Maturity\u2010onset diabetes of the young (MODY) is characterized by autosomal dominant inheritance of young\u2010onset non\u2010insulin\u2010dependent diabetes. It accounts for approximately 1% of Type 2 diabetes (approximately 20\u2003000 people in the UK). Diagnostic and predictive genetic tests are now possible for 80% of MODY families. Diagnostic tests can be helpful as the diagnosis can be confirmed and the subtype defined which has implications for treatment and prognosis. However predictive genetic testing, particularly in children, raises many scientific, ethical and practical questions.<\/jats:p><jats:p><jats:bold>Methods\u2003<\/jats:bold> This is a case report of a family with diabetes resulting from an hepatic nuclear factor (HNF)1\u03b1 mutation, who request a predictive test in their 5\u2010year\u2010old daughter. The scientific issues arising from molecular genetic testing in MODY are discussed, along with the process of genetic counselling. The views of the family and the clinical genetics team involved are presented.<\/jats:p><jats:p><jats:bold>Results\u2003<\/jats:bold> The implications of positive and negative predictive test results and the possibility of postponing the test were among many issues discussed during genetic counselling. The family remained convinced the test was appropriate for their daughter and the clinical genetics team fully supported this decision. The family, motivated by their family history of diabetes and personal experiences of the disease, wished to reduce uncertainty about their daughter's future irrespective of the result.<\/jats:p><jats:p><jats:bold>Conclusions\u2003<\/jats:bold> This case emphasizes that decisions on predictive testing are very personal and require appropriate counselling.<\/jats:p>","DOI":"10.1046\/j.1464-5491.2001.00447.x","type":"journal-article","created":{"date-parts":[[2003,3,11]],"date-time":"2003-03-11T14:50:28Z","timestamp":1047394228000},"page":"417-421","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":61,"title":["Predictive genetic testing in maturity\u2010onset diabetes of the young (MODY)"],"prefix":"10.1111","volume":"18","author":[{"given":"M.","family":"Shepherd","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I.","family":"Ellis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A. 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