Regulation of the Mouse Ventral Tegmental Area by Melanin-Concentrating Hormone.

Melanin-concentrating hormone (MCH) acts via its sole receptor MCHR1 in rodents and is an important regulator of homeostatic behaviors like feeding, sleep, and mood to impact overall energy balance. The loss of MCH signaling by MCH or MCHR1 deletion produces hyperactive mice with increased energy expenditure, and these effects are consistently associated with a hyperdopaminergic state. We recently showed that MCH suppresses dopamine release in the nucleus accumbens, which principally receives dopaminergic projections from the ventral tegmental area (VTA), but the mechanisms underlying MCH-regulated dopamine release are not clearly defined.

Practice Patterns for Early Screening and Evaluation for Autism Spectrum Disorder Diagnosis in Bulgaria.

The aims of this study were to describe the practice patterns for early screening and evaluation for ASD diagnosis in Bulgaria, as well as to identify potential barriers and facilitators in this process. We surveyed a sample of pediatricians and pediatric psychiatrists to analyze the use of standardized instruments, application of biomarkers, parental collaboration and future policy prospects. We found a significant support for the idea of a national program for ASD in Bulgaria.