Influence of L-tryptophan use on the dynamics of cognitive functions in the complex therapy of delayed psycho-speech development in children

The purpose of this study is to evaluate the ability of L-tryptophan used in complex therapy of delayed psycho-speech development in children to influence the dynamics of cognitive performance.Materials and methods. The study included 80 children aged 3–7 years with delayed psycho-speech development...

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Main Authors: V. M. Polyakov, L. V. Rychkova, T. A. Belogorova, V. I. Mikhnovich, O. V. Bugun, O. N. Berdina, Zh. V. Prokhorova, T. A. Teterina, L. N. Lebedeva, L. I. Lebedeva
Format: Article
Language:English
Published: Siberian State Medical University (Tomsk) 2018-07-01
Series:Бюллетень сибирской медицины
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Online Access:https://bulletin.ssmu.ru/jour/article/view/1205
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author V. M. Polyakov
L. V. Rychkova
T. A. Belogorova
V. I. Mikhnovich
O. V. Bugun
O. N. Berdina
Zh. V. Prokhorova
T. A. Teterina
L. N. Lebedeva
L. I. Lebedeva
author_facet V. M. Polyakov
L. V. Rychkova
T. A. Belogorova
V. I. Mikhnovich
O. V. Bugun
O. N. Berdina
Zh. V. Prokhorova
T. A. Teterina
L. N. Lebedeva
L. I. Lebedeva
author_sort V. M. Polyakov
collection DOAJ
description The purpose of this study is to evaluate the ability of L-tryptophan used in complex therapy of delayed psycho-speech development in children to influence the dynamics of cognitive performance.Materials and methods. The study included 80 children aged 3–7 years with delayed psycho-speech development (DPSD). The main group consisted of 37 children (25 male and 12 female), a control group – 43 patients (30 male and 13 female). Both groups of children were comparable in age, sex, degree of speech and cognitive impairment, and IQ level. Patients in the main group have taken standard therapy with L-tryptophan (25–50 mg per day depending on the age) supplement for 14 days. Control patients have taken standard therapy only. Psychodiagnostic tests at the entrance and exit of patients from this study was carried out for evaluation the dynamics of cognitive functions. All differences were considered significant at p < 0.05.Results. The study suggests that oral L-tryptophan intake selectively affects the dynamics of cognitive performance in children with DPSD. So, we studied pre- and post-treatment cognitive performance in both group patients and noted a significant improvement in the visual memory (p < 0.001) and an increase in thinking productivity (p < 0.001) in the tryptophan group versus similar indicators in the control group. Intergroup differences (p < 0.001 and p = 0.026, respectively, for the main and control groups) also found.Conclusion. Two-week L-tryptophan intake in complex therapy of DPSD in children can significantly improve the cognitive activity, and greatly increase both the effectiveness and sustainability of treatment outcomes, which will significantly reduce the time and frequency of hospitalization and financial costs for the rehabilitation of this patients.
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institution Kabale University
issn 1682-0363
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spelling doaj-art-373cd8bf96894cc19b4858a8fa3dfe672025-08-20T03:37:47ZengSiberian State Medical University (Tomsk)Бюллетень сибирской медицины1682-03631819-36842018-07-01172717910.20538/1682-0363-2018-2-71-79791Influence of L-tryptophan use on the dynamics of cognitive functions in the complex therapy of delayed psycho-speech development in childrenV. M. Polyakov0L. V. Rychkova1T. A. Belogorova2V. I. Mikhnovich3O. V. Bugun4O. N. Berdina5Zh. V. Prokhorova6T. A. Teterina7L. N. Lebedeva8L. I. Lebedeva9Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP); Irkutsk State University (ISU)Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP); Irkutsk State University (ISU)Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP)Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP)Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP)Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP)Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP)Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP)Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP)Scientific Centre for Family Health and Human Reproduction Problems (SC FHHRP)The purpose of this study is to evaluate the ability of L-tryptophan used in complex therapy of delayed psycho-speech development in children to influence the dynamics of cognitive performance.Materials and methods. The study included 80 children aged 3–7 years with delayed psycho-speech development (DPSD). The main group consisted of 37 children (25 male and 12 female), a control group – 43 patients (30 male and 13 female). Both groups of children were comparable in age, sex, degree of speech and cognitive impairment, and IQ level. Patients in the main group have taken standard therapy with L-tryptophan (25–50 mg per day depending on the age) supplement for 14 days. Control patients have taken standard therapy only. Psychodiagnostic tests at the entrance and exit of patients from this study was carried out for evaluation the dynamics of cognitive functions. All differences were considered significant at p < 0.05.Results. The study suggests that oral L-tryptophan intake selectively affects the dynamics of cognitive performance in children with DPSD. So, we studied pre- and post-treatment cognitive performance in both group patients and noted a significant improvement in the visual memory (p < 0.001) and an increase in thinking productivity (p < 0.001) in the tryptophan group versus similar indicators in the control group. Intergroup differences (p < 0.001 and p = 0.026, respectively, for the main and control groups) also found.Conclusion. Two-week L-tryptophan intake in complex therapy of DPSD in children can significantly improve the cognitive activity, and greatly increase both the effectiveness and sustainability of treatment outcomes, which will significantly reduce the time and frequency of hospitalization and financial costs for the rehabilitation of this patients.https://bulletin.ssmu.ru/jour/article/view/1205childrenl-tryptophandelayed psycho-speech developmentcognitive functions
spellingShingle V. M. Polyakov
L. V. Rychkova
T. A. Belogorova
V. I. Mikhnovich
O. V. Bugun
O. N. Berdina
Zh. V. Prokhorova
T. A. Teterina
L. N. Lebedeva
L. I. Lebedeva
Influence of L-tryptophan use on the dynamics of cognitive functions in the complex therapy of delayed psycho-speech development in children
Бюллетень сибирской медицины
children
l-tryptophan
delayed psycho-speech development
cognitive functions
title Influence of L-tryptophan use on the dynamics of cognitive functions in the complex therapy of delayed psycho-speech development in children
title_full Influence of L-tryptophan use on the dynamics of cognitive functions in the complex therapy of delayed psycho-speech development in children
title_fullStr Influence of L-tryptophan use on the dynamics of cognitive functions in the complex therapy of delayed psycho-speech development in children
title_full_unstemmed Influence of L-tryptophan use on the dynamics of cognitive functions in the complex therapy of delayed psycho-speech development in children
title_short Influence of L-tryptophan use on the dynamics of cognitive functions in the complex therapy of delayed psycho-speech development in children
title_sort influence of l tryptophan use on the dynamics of cognitive functions in the complex therapy of delayed psycho speech development in children
topic children
l-tryptophan
delayed psycho-speech development
cognitive functions
url https://bulletin.ssmu.ru/jour/article/view/1205
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