The mass media and the prevention of child behavior problems: the evaluation of a television series to promote positive outcomes for parents and their children

This paper examines the impact of a 12-episode television series, "Families", on disruptive child behavior and family adjustment. This media intervention comprises the first of a five-level early intervention parenting and family support strategy, known as Triple P (Positive Parenting Program). Fifty-six parents of children aged between 2 and 8 years were randomly assigned to either watching the television series or to a waitlist control group. Compared to the control group, parents in the television viewing (TV) condition reported significantly lower levels of disruptive child behavior and higher levels of perceived parenting competence, immediately following intervention. Prior to intervention approximately 42.9% of the children in the TV condition were in the clinically elevated range for disruptive child behavioral problems. This had reduced to 14.3 % following intervention. In addition, a high level of consumer acceptability was reported by parents in the TV condition. All post-intervention effects were maintained at 6-month follow-up. Implications for public health approaches to family mental health are discussed.

N-acetyl-aspartylglutamate modulation of N-methyl-D-aspartate-stimulated [3H]norepinephrine release from rat hippocampal slices

The release of preloaded radiolabeled norepinephrine ([3H]NE) from slices of rat hippocampus can be stimulated by excitatory amino acids that interact with the N-methyl-D-aspartate (NMDA) receptor. The acidic dipeptide N-acetyl-L-aspartylglutamate (NAAG) is colocalized with NE in the cell bodies of locus coeruleus (the origin of the noradrenergic projections to the hippocampus) and the hippocampus itself. The function of NAAG in these neurons has not been demonstrated, although evidence exists that it may serve as a neuromodulator in other neuronal pathways. NAAG inhibited the release of [3H]NE stimulated by NMDA and L-glutamate in a concentration-related manner. The maximal inhibition produced by NAAG was about 25% of the control release stimulated by 25 microM NMDA. The effects observed were caused by the intact dipeptide and not the degradation artifacts produced by the enzyme N-acetylated-alpha-linked-acidic dipeptidase because N-acetyl-L-aspartate had no significant effect on the release and L-glutamate was stimulatory. The activity of this enzyme appears to be suppressed under the assay conditions used. Although the addition of glycine did not enhance NMDA-stimulated release, 7-chlorokynurenate and 1-hydroxy-3-amino-pyrrolidone-2 decreased the release in a concentration-dependent manner. Furthermore, the attenuation produced by NAAG plus 7-chlorokynurenate or 1-hydroxy-3-aminopyrrolidone-2 was greater than the inhibitory actions of either glycine antagonist alone. Similarly, NAAG produced additional inhibition over that produced by either of two different voltage-dependent calcium channel blockers.(ABSTRACT TRUNCATED AT 250 WORDS)