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La Grange residents Lupe (from left), Isabel and Nick McKeehan spend time together outside. After 9-year-old Isabel was diagnosed with a urea cycle disorder, Lupe made it her mission to help others affected by the extremely rare genetic disorder. (Photo provided)
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Isabel McKeehan, 9, of La Grange is doing well managing her urea cycle disorder with a strict low-protein diet, medication and supplements. Her mom, Lupe, said the St. Cletus Catholic School third-grader "loves to play with friends and loves life." (Photo provided)
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La Grange resident Lupe McKeehan (left) is on a mission to help others affected by a urea cycle disorder after her 9-year-old daughter, Isabel, was diagnosed with the extremely rare genetic disorder. (Photo provided)