R(-)-deprenyl has been shown to rescue axotomized immature facial motoneurons with an efficacy comparable to that of the neurotrophic factors CNTF and BDNF (Salo and Tatton, J Neurosci Res 31:394-400, 1992; Ansari et al., J Neurosci 13:4042-4053, 1993). Recent work has suggested that some of the actions of (-)-deprenyl may be mediated through reactive astrocytes (Biagini et al., NeuroReport 4:9...

Since novel synthesized deprenyl-related derivatives of nitroxides, named "JSAKs", have been shown to possess antioxidative properties, their cytotoxicity on neuronal-like PC-12 cells line was examined. The antiproliferative effect of two selected JSAKs was examined and expressed as IC10, IC50 and IC90, and compared with those of the parent nitroxide (Nx-640), model nitroxide TEMPO and deprenyl...

Degeneration of nigrostriatal dopaminergic neurons is the major pathogenic substrate of Parkinson's disease (PD). Inhibitors of monoamine oxidase B (MAO-B) have been used in the treatment of PD and at least one of them, i.e., deprenyl, also displays antioxidant activity. Dopamine (DA) autoxidation produces reactive oxygen species implicated in the loss of dopaminergic neurons in the nigrostriat...

introduction: neurotrophins belong to growth factor family and their function is based on their receptors. they bind two types of receptors: p75 and tyrosine kinase. the motoneuron survival or death depends upon the neurotrophic factors. recent studies have demonstrated that axotomy in peripheral nerve induces apoptosis of motoneuron. deprenyl or selegiline is known as a drug with neuroprotecti...

Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) participates in a cell death cascade wherein a variety of stimuli activate nitric oxide (NO) synthases with NO nitrosylating GAPDH, conferring on it the ability to bind to Siah, an E3-ubiquitin-ligase, whose nuclear localization signal enables the GAPDH/Siah protein complex to translocate to the nucleus where degradation of Siah targets elicits c...

Although the CYP content of brain is too low to significantly influence the overall pharmaco-kinetics of drugs and hormones in the body, brain CYP could play a role in tissue-and/or cell-specific sensitivity to certain drugs or xenobiotics. We have characterized the CYP-dependent metabolism of l-deprenyl by brain microsomal preparations obtained from different experimental animals: monkey, C57B...

Neuroprotective effect of deprenyl on motoneurons of spinal cord after axotomy of peripheral nerves such as sciatic has been well established. Deprenyl is an inhibitor of monoamine oxidase type-B (MAO-B). The main function of this agent is the release of neurotransmitters from pre-synaptic terminals. Acetylcholine is a neurotransmitter that is synthesized by choline acetyltransferase (ChAT) and...

introduction: there are the evidences to suggest that bone marrow stromal cells (bmscs) not only differentiate into mesodermal cells, but also adopt the fate of endodermal and ectodermal cell types. bmscs can be a valuable cell source as an autograph for clinical application involving regeneration of the central nervous system. bone marrow stromal cells can be expanded rapidly in vitro and have...

During development many of neurons die by the phenomenon named programmed cell death or apoptosis and this reaction is regulated by neurotrophin (BDNF, NGF, NT3 and NT4/5). These neurotrophins bind to two different classes of transmembrane receptor proteins, the Trks and P75 NTR. Axotomy can induce apoptosis after birth and deprenyl is a an inhibitor of monoamineoxidase type-B and seems to act ...