European journal of endocrinology · 2023
Cognitive function during 3 years of growth hormone in previously growth hormone-treated young adults with Prader-Willi syndrome.
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Trueba-Timmermans Demi J, Grootjen Lionne N, Juriaans Alicia F, Mahabier Eva F, Kerkhof Gerthe F, Rings Edmond H H M, Hokken-Koelega Anita C S
Аннотация
CONTEXT: Most patients with Prader-Willi syndrome (PWS) have mild to moderate cognitive impairment. Growth hormone (GH) treatment has positive short- and long-term effects on cognition in children with PWS. Few studies, however, have investigated the effects of GH on cognitive functioning in adults with PWS.
OBJECTIVE: To investigate the effects of 3 years of GH treatment on cognitive functioning and behavior in young adults with PWS who were treated with GH during childhood.
DESIGN: Open-label, prospective study.
SETTING: Dutch PWS Reference Center.
METHODS: Patients were treated with 0.33 mg GH/m²/day (∼0.012 mg/kg/day; 33% of childhood dose). Cognitive functioning was measured by Wechsler Adult Intelligence (WAIS) tests. Behavior was studied by a developmental behavior checklist-parents/caregivers (DBC-P).
RESULTS: Forty-six young adults with PWS with a median age of 19 (IQR 17-21) years were investigated. Estimated mean (95% CI) total, verbal, and performance IQ remained stable during 3 years of GH-treatment. Total IQ being 66 (63-69) at the start and 67 (64-71) after 3 years (P = .30); Verbal IQ being 65 (62-68) and 66 (62-70), respectively (P = .31) and performance IQ being 67 (63-70) and 67 (63-72) resp. (P = .42). Estimated mean Total DBC score did not significantly change during 3 years of GH-treatment, being 36.3 at start and 36.5 after 3 years (P = .94) (P50).
CONCLUSIONS: Three years of GH-treatment in young adults with PWS with 33% of the pediatric dose, maintains total, verbal, and performance IQ. The emotional and behavioral disturbances remained stable and were similar compared to peers with other intellectual disabilities.
OBJECTIVE: To investigate the effects of 3 years of GH treatment on cognitive functioning and behavior in young adults with PWS who were treated with GH during childhood.
DESIGN: Open-label, prospective study.
SETTING: Dutch PWS Reference Center.
METHODS: Patients were treated with 0.33 mg GH/m²/day (∼0.012 mg/kg/day; 33% of childhood dose). Cognitive functioning was measured by Wechsler Adult Intelligence (WAIS) tests. Behavior was studied by a developmental behavior checklist-parents/caregivers (DBC-P).
RESULTS: Forty-six young adults with PWS with a median age of 19 (IQR 17-21) years were investigated. Estimated mean (95% CI) total, verbal, and performance IQ remained stable during 3 years of GH-treatment. Total IQ being 66 (63-69) at the start and 67 (64-71) after 3 years (P = .30); Verbal IQ being 65 (62-68) and 66 (62-70), respectively (P = .31) and performance IQ being 67 (63-70) and 67 (63-72) resp. (P = .42). Estimated mean Total DBC score did not significantly change during 3 years of GH-treatment, being 36.3 at start and 36.5 after 3 years (P = .94) (P50).
CONCLUSIONS: Three years of GH-treatment in young adults with PWS with 33% of the pediatric dose, maintains total, verbal, and performance IQ. The emotional and behavioral disturbances remained stable and were similar compared to peers with other intellectual disabilities.