mercredi 29 octobre 2014

manganèse des taux toxiques en relation avec l'apparition de troubles du comportement Dr claude Jean PARIS


 2014 Jun 4. pii: S0165-1781(14)00465-X. doi: 10.1016/j.psychres.2014.05.049. [Epub ahead of print]

Blood manganese levels in relation to comorbid behavioral and emotional problems in children with attention-deficit/hyperactivity disorder.

Abstract

Patients with attention-deficit/hyperactivity disorder (ADHD) appear to be more vulnerable to the development of other psychiatric disorders than the general population. The proposed neurotoxic mechanisms of manganese involve striatal dopamine neurotransmission, implicated in the pathophysiology of ADHD. We investigated whether the adverse impact of manganese is particularly pronounced in children with ADHD. Blood manganese concentration and diagnosis of ADHD were assessed in a general population of 890 children, aged 8-11 years. The main outcome measure was the Child Behavior Checklist (CBCL). A significant interaction was found between ADHD status andblood manganese level in predicting CBCL total problems score as well as anxiety/depression, social problems, delinquent behavior, aggressive behavior, internalizing problems, and externalizing problems. The directions of the interactions indicated that blood manganese level was more positively correlated with CBCL scores in ADHD children than in the healthy population. In ADHD children, only the fifth quintile of blood manganese concentration was significantly associated with the CBCL total problems score. ADHD children may be more vulnerable than the general school-age population to the neurotoxic effects of manganese exposure, which lead to an elevated risk of developing comorbid mental conditions.

vendredi 3 octobre 2014

la santé émotionnelle des parents influence l'anxiété des enfants  Dr Claude Jean  paris


 2014 Oct 2. [Epub ahead of print]

The Relationship Between Parents' Poor Emotional Health Status and Childhood Mood and Anxiety Disorder in Florida Children, National Survey of Children's Health, 2011-2012.

Abstract

The purpose of this study was to examine how parents' emotional health relates to childhood mood and anxiety disorder among Florida children in the 2011-2012 National Survey of Children's Health. Analyses were restricted to 1,241 Florida children 6-17 years of age. Childhood mood and anxietydisorder was defined as a parent-reported diagnosis of current depression or anxiety. Parents' emotional health status was a composite measure of the lowest reported emotional health of any parent in the household. To assess the association between parents' emotional health and childhood mood and anxiety disorder, bivariate and multivariate logistic regression analyses were performed. Nearly 5 % of Florida children had a mood oranxiety disorder in 2011-2012. Children living with a parent in poor emotional health were significantly more likely to have a mood or anxiety disorder compared to children living with a parent in good emotional health (OR 5.01; 95 % CI 1.89, 13.29). After adjusting for covariates, this association remained substantial and significant (aOR 4.33; 95 % CI 1.49, 12.57). Findings presented here are consistent with national findings and emphasize the strong link between parents' emotional health status and childhood mood and anxiety disorders. To address the mental health of children in the state of Florida, Florida public health initiatives should consider family processes and child level characteristics.
PMID:
 
25272995
 
[PubMed - as supplied by publisher]