Overo refers to several genetically unrelated pinto coloration patterns of white-over-dark body markings in horses, and is a term used by the American Paint Horse Association to classify a set of pinto patterns that are not Tobiano.
Cerebrospinal fluid signals control the behavior of stem cells in the brain. FULL STORY. When stem cells from the old brain are cultured with signals of a young choroid plexus they can divide and form new neurons (red).
Cell membranes also control the release of neurotransmitters and this means that the release of neurotransmitters is also affected by the presence of alcohol. The effects of alcohol on receptors and neurotransmitters have been well documented for several neurotransmitters and their corresponding receptors.