The mild neuroinflammation hypothesis of schizophrenia was introduced by Bechter in 2001. It has been hypothesized that a hypofunction of glutamatergic signaling via N-methyl-D-aspartate receptors (NMDARs) and hyperactivation of dopamine D2 receptors play a role in schizophrenia. The triplet puzzle theory states that sets of triplet amino acid homologies guide two different receptors toward eac...

Neuroinflammatory response is primarily a protective mechanism in the brain. However, excessive and chronic inflammatory responses can lead to deleterious effects involving immune cells, brain cells and signaling molecules. Neuroinflammation induces and accelerates pathogenesis of Parkinson's disease (PD), Alzheimer's disease (AD) and Multiple sclerosis (MS). Neuroinflammatory pathways are indi...

matrix metalloproteinases (mmps) are a family of neutral proteinases that are important in normal development, cellular differentiation or migration, angiogenesis, neurogenesis, wound repair, and a wide range of pathological processes such as oxidative stress and neuroinflammation. mmps have been demonstrated to increase the permeability of the blood–brain barrier (bbb) by degrading the compone...

parkinson’s disease is the second most common age associated neuron degenerative disorder in developed societies. with the prevalence ranging from 41 per 100000 in the fourth decade of life to over 1900 per 100000 in people over 80 years of age.it characterized clinically by resting tremor, slowness of movement, rigidity and postural instability in the result of progressive loss of dopaminergic...

multiple sclerosis (ms) is an inflammatory disease of the central nervous system (cns). inflammation caused by immune cells destroy the myelin and then axon. cns failure to complete repair results in permanent disabilities. some types of stem cells have special potentials to repair these injuries and even cure ms. neural crest stem cells with a mutual origin with cns and the ability of differen...

Increasing evidence supports a decisive role for neuroinflammation in the neurodegenerative process of several central nervous system (CNS) disorders. Microglia are essential mediators of neuroinflammation and can regulate a broad spectrum of cellular responses by releasing reactive oxygen intermediates, nitric oxide, proteases, excitatory amino acids, and cytokines. We have recently shown that...

Microglia become activated during neuroinflammation and produce neurotoxic and neurotrophic factors, depending on whether they acquire M1 proinflammatory or M2 anti-inflammatory phenotypes. Astaxanthin (ATX), a natural carotenoid, has anti-inflammatory and neuroprotective effects. We investigated whether ATX could reverse M1/M2 polarization and suppress neuroinflammation via low-density lipopro...

HIV-1 trans-acting protein Tat, an essential protein for viral replication, is a key mediator of neurotoxicity. If Tat oxidant injury and neurotoxicity have been described, consequent neuroinflammation is less understood. Rat caudate-putamens (CPs) were challenged with Tat, with or without prior rSV40-delivered superoxide dismutase or glutathione peroxidase. Tat injection caused oxidative stres...

Many neurotropic viruses exist and may cause classical inflammation but also low-level neuroinflammation. However, viruses may be dormant within the CNS and become active later. The role of neurotropic virus infections in the causation of psychiatric disorders may be underestimated, because the diagnostic approach to the CNS is difficult and to dormant infections in general, but especially with...

Worldwide, stroke is the leading cause of disability in the aging population. Neuroinflammation is a common feature of acute stroke and is considered to be a major obstacle to endogenous neurogenesis and exogenously administered stem cells. Therefore, drug and cell therapies aimed at suppressing post-stroke inflammation have emerged as a promising approach to improve recovery after stroke. Howe...