This article discusses conceptual issues and reviews knowledge about direct and buffering
protective factors in the development of youth violence. Direct protective factors predict a low …

Political scientists are making increasing use of the methodologies of behavior genetics in
an attempt to uncover whether or not political behavior is heritable, as well as the specific …

Historically, much of the focus on monoamine oxidases and their substrates has been in the
area of depression and the monoamine neurotransmitters serotonin (5-hydroxytryptamine) …

Human brain function is mediated by biochemical processes, many of which can be
visualized and quantified by positron emission tomography (PET). PET brain imaging of …

Relatively little is known about the potential interplay between genetic and environmental
influences on attention-deficit/hyperactivity disorder (ADHD), including gene-environment …

Background Animal studies have revealed seasonal patterns in cerebrospinal fluid (CSF)
monoamine (MA) turnover. In humans, no study had systematically assessed seasonal …

Initially introduced in the 1950s for treating depression, monoamine oxidase (MAO)
inhibitors were gradually abandoned, mainly owing to their potential for drug–drug and drug …

Background Atherosclerosis is a complex process involving both genetic and epigenetic
factors. The monoamine oxidase A (MAOA) gene regulates the metabolism of key …

The concentration of presenilin-1 (PS-1) protein at the mitochondrial-associated aspect of
the endoplasmic reticulum supports the potential for a mitochondrial influence of PS-1 …

Social and emotional behaviors are known to be sensitive to both developmental iron
deficiency (ID) and monoamine oxidase A (MAOA) gene polymorphisms. In this study, male …