Histone deacetylase (HDAC) inhibitors have been shown associated with neurodegenerative diseases. However, their effects on survival of dopaminergic neurons remain uncertain. In the present study, the HDAC inhibitor trichostatin A (TSA) was tested in following dopaminergic neuronal cell lines: rat N27, mouse MN9D, and human SH-SY5Y cells. Results demonstrated that a single TSA treatment resulte...

Dopaminergic neurons in the ventral mesencephalon (the ventral mesencephalic dopaminergic complex) are known for their role in a multitude of behaviors, including cognition, reward, addiction and voluntary movement. Dysfunctions of these neurons are the underlying cause of various neuropsychiatric disorders, such as depression, addiction and schizophrenia. In addition, Parkinson's disease (PD),...

The phenotype of substantia nigra (SN) neurons in homozygous weaver (wv/wv) mice was studied by combining patch-clamp and single-cell RT-multiplex PCR techniques in midbrain slices of 14-d-old mice. In contrast to GABAergic SN neurons, which were unaffected in homozygous weaver mice (wv/wv), dopaminergic SN neurons possessed a dramatically altered phenotype with a depolarized membrane potential...

morphine was used as a remedy for the control of diarrhea centuries before it's sedative-analgesic effect was discovered. although several mechanisms have been proposed for the morphine-induced inhibition of gastrointestinal transit (oit), the exact mechanism has not yet been identified. on this basis the possible involvement of the dopaminergic system in morphine-induced inhibition of tra...

introduction: oxidative stress and neuroinflammation are involved in neurodegeneration procedure in parkinson’s disease. recently, neuroprotective potential of boswellia resin has been demonstrated. therefore, this study examined whether administration of boswellia resin would attenuate mpp+- induced neuronal death in sk-n-sh- cell line, a human dopaminergic neurons- in vitro. methods: boswelli...

Several findings have indicated an involvement of dopamine in panic and defensive behaviors. The dorsolateral column of the periaqueductal gray (dlPAG) is crucially involved in the expression of panic attacks in humans and defensive behaviors, also referred to as panic-like behaviors, in animals. Although the dlPAG is known to receive a specific innervation of dopaminergic fibers and abundantly...

A massive degeneration of dopamine-containing neurons in the substantia nigra (SN) in the midbrain is characteristic of Parkinson's disease. Inflammation in the brain has long been speculated to play a role in the pathogenesis of this neurological disorder. Recently, we reported that treatment of primary rat mesencephalic mixed neuron-glia cultures with lipopolysaccharide (LPS) led to the activ...