Elsevier

Child Abuse & Neglect

Volume 19, Issue 7, July 1995, Pages 821-832
Child Abuse & Neglect

Serum dopamine beta hydroxylase and maltreatment in psychiatrically hospitalized boys

https://doi.org/10.1016/0145-2134(95)00042-7Get rights and content

Abstract

Fifty boys, hospitalized on a school-age and an adolescent unit in an intermediate length psychiatric hospital, were studied while off psychoactive medication to determine how serum dopamine beta hydroxylase (DBH) activity varies with different childhood maltreatment experiences. Childhood maltreatment was categorized according to onset (before 36 months old, between 36–72 months old and over 72 months old). Childhood maltreatment groups were compared with a group of psychiatrically hospitalized boys who had neither been abused nor neglected. Boys who were younger than 72 months at age of onset of maltreatment had significantly lower DBH activity than those who had experienced maltreatment later in childhood and those who had not been subjected to abuse or neglect. This difference appeared attributable to the DBH activity of school age (but not adolescent) boys who had been abused/neglected before 72 months. Boys with a principal diagnosis of conduct disorder solitary aggressive type had lower DBH activity than boys without this diagnosis regardless of whether or not they had been maltreated. Low serum DBH may be a biological sequela of maltreatment early in life that correlates with the development of conduct disorder solitary aggressive type in boys.

Résumé

Cinquante garçons enaˆge scolaire, hospitalise´s dans une unite´d'adolescents d'un hoˆpital psychiatriquea`se´jour de dure´e interme´diaire onte´te´e´tudie´s. En l'absence de toute me´dication psycho-active les variations de l'activite´se´rique en dopamine beta hydroxylase (DBH) onte´te´e´tudie´es en fonction des diffe´rentes expe´riences de maltraitance infantile. Les maltraitances infantiles onte´te´classe´es en fonction de leur de´but (avant 36 mois), entre 36 et 72 mois et apre`s 72 mois de vie. Les groupes d'enfants maltraite´s onte´te´compare´s avec un groupe de garçons, hospitalise´s pour des raisons psychiatriques, mais qui n'avaient jamaise´te´abuse´s ou ne´glige´s. Les garçons qui avaient moins de 72 mois lors du de´but des mauvais traitements avaient une activite´DBH significativment plus basse que ceux maltraite´s plus tard dans l'enfance et que ceux n'ayant jamaise´te´sujeta`de l'abus ou de la ne´gligence. Cette diffe´rence est apparue attribuablea`l'activite´DBH des garçons enaˆge scolaire abuse´s avant 72 mois et nona`ceux adolescents. Les garçons dont le diagnostic principal de desordre de comportemente´tait de type agressif et solitaire avaient une activite´DBH plus basse que les garçons ne pre´sentant pas ce diagnostique et cela qu'il aiente´te´maltraite´s ou non. Un taux se´rique bas en DBH peuteˆtre une se´quelle biologique de mauvais traitements pre´coces qui est corre´le´s avec le de´veloppement d'un de´sordre de comportement agressif et solitaire chez les garçons.

Resumen

Cincuenta nin˜os de sexo masculino, hospitalizados en una unidad para nin˜os de edad escolar y adolescentes en un hospital psiquia´trico de ingreso de media estancia, fueron estudiados mientras no estaban tomando medicacio´n psicoactiva, para determinar co´mo variaba la actividad de la Dopamina Beta Hidroxilasa (DBH) en suero en funcio´n de diferentes experiencias de maltrato en la infancia. El maltrato en la infancia se categorizo´de acuerdo al momento de su inicio (antes de los 36 meses de edad, entre los 36–72 meses, y despue´s de cumplidos los 72 meses). Se compararon los grupos de maltrato en la infancia con un grupo de nin˜os hospitalizados en dicho centro psiquia´trico que no habi´an sido objeto ni de malos tratos ni de abandono. Los nin˜os que teni´an menos de 72 meses de edad en el momento en el que comenzo´el maltrato, teni´an una actividad de la DBH mucho menor que aquellos que habian comenzado a sufrir el maltrato mas tarde y que aque´llos que no habi´an sido objeto ni de malos tratos ni de abandono. Esta diferencia pareci´a atribuible a la actividad de la DBH en nin˜os de edad escolar (pero no adolescentes) que habi´an sido objeto de malos tratos/abandono antes de los 72 meses. Los nin˜os con un diagno´stico principal de trastorno de conducta de tipo solitario-agresivo teni´an una menor actividad de la DBH que los nin˜os sin ese diagno´stico, independientemente de si habi´an sido o no maltratados. El bajo DBH en suero puede ser una sexuela biolo´gica de una experiencia de maltrato ene´pocas tempranas de la vida, que correlaciona en nin˜os de sexo masculino con el desarrollo de un trastorno de conducta de tipo solitario-agresivo.

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