Inflammatory gut as a pathologic and therapeutic target in Parkinson's disease.

Parkinson's disease (PD) remains a significant unmet clinical need. Gut dysbiosis stands as a PD pathologic source and therapeutic target. Here, we assessed the role of the gut-brain axis in PD pathology and treatment.

Amelioration of Ischemic Brain Injury in Rats With Human Umbilical Cord Blood Stem Cells: Mechanisms of Action.

Despite the high prevalence and devastating outcome, there remain a few options for treatment of ischemic stroke. Currently available treatments are limited by a short time window for treatment and marginal efficacy when used. We have tested a human umbilical cord blood-derived stem cell line that has been shown to result in a significant reduction in stroke infarct volume as well as improved functional recovery following stroke in the rat.

Biodistribution of Infused Human Umbilical Cord Blood Cells in Alzheimer's Disease-Like Murine Model.

Human umbilical cord blood cells (HUCBCs), a prolific source of non-embryonic or adult stem cells, have emerged as effective and relatively safe immunomodulators and neuroprotectors, reducing behavioral impairment in animal models of Alzheimer's disease (AD), Parkinson's disease, amyotrophic lateral sclerosis, traumatic brain injury, spinal cord injury, and stroke. In this report, we followed the bioavailability of HUCBCs in AD-like transgenic PSAPP mice and nontransgenic Sprague-Dawley rats. HUCBCs were injected into tail veins of mice or rats at a single dose of 1 × 10(6) or 2.

Nutraceutical intervention reverses the negative effects of blood from aged rats on stem cells.

Aging is associated with a decline in function in many of the stem cell niches of the body. An emerging body of literature suggests that one of the reasons for this decline in function is due to cell non-autonomous influences on the niche from the body. For example, studies using the technique of parabiosis have demonstrated a negative influence of blood from aged mice on muscle satellite cells and neurogenesis in young mice.

NT-020 treatment reduces inflammation and augments Nrf-2 and Wnt signaling in aged rats.

Background: Aging is associated with a decline in stem cell proliferation that is thought to be a result of dysregulated signaling in the neurogenic niche. This results in a diminished and less efficient pool of progenitors. The Wnt pathway plays a key role in the proliferation and differentiation of progenitor cells.

Neurorestorative Therapy of Stroke in Type 2 Diabetes Mellitus Rats Treated With Human Umbilical Cord Blood Cells.

Background And Purpose: Diabetes mellitus is a high-risk factor for ischemic stroke. Diabetic stroke patients suffer worse outcomes, poor long-term recovery, risk of recurrent strokes, and extensive vascular damage. We investigated the neurorestorative effects and the underlying mechanisms of stroke treatment with human umbilical cord blood cells (HUCBCs) in type 2 diabetes mellitus (T2DM) rats.

Plasma Derived From Human Umbilical Cord Blood Modulates Mitogen-Induced Proliferation of Mononuclear Cells Isolated From the Peripheral Blood of ALS Patients.

Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease characterized by degeneration of motor neurons in the spinal cord and brain. This disease clinically manifests as gradual muscular weakness and atrophy leading to paralysis and death by respiratory failure. While multiple interdependent factors may contribute to the pathogenesis of ALS, increasing evidence shows the possible presence of autoimmune mechanisms that promote disease progression.

Humoral factors in ALS patients during disease progression.

Background: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease affecting upper and lower motor neurons in the CNS and leading to paralysis and death. There are currently no effective treatments for ALS due to the complexity and heterogeneity of factors involved in motor neuron degeneration. A complex of interrelated effectors have been identified in ALS, yet systemic factors indicating and/or reflecting pathological disease developments are uncertain.

Repeated administrations of human umbilical cord blood cells improve disease outcomes in a mouse model of Sanfilippo syndrome type III B.

Sanfilippo syndrome type III B (MPS III B) is an inherited disorder characterized by a deficiency of α-N-acetylglucosaminidase (Naglu) enzyme leading to accumulation of heparan sulfate in lysosomes and severe neurological deficits. We have previously shown that a single administration of human umbilical cord mononuclear cells (hUCB MNCs) into Naglu knockout mice decreased behavioral abnormalities and tissue pathology. In this study, we tested whether repeated doses of hUCB MNCs would be more beneficial than a single dose of cells.

HUCBCs increase angiopoietin 1 and induce neurorestorative effects after stroke in T1DM rats.

Background And Purpose: We investigated the neurorestorative effects and underlying mechanisms of stroke treatment with human umbilical cord blood cells (HUCBCs) in Type one diabetes mellitus (T1DM) rats.

Methods: Type one diabetes mellitus rats were subjected to middle cerebral artery occlusion (MCAo) and 24 h later were treated with: (1) phosphate-buffered-saline; (2) HUCBCs. Brain endothelial cells (MBECs) were cultured and capillary tube formation was measured.

Mannitol-enhanced delivery of stem cells and their growth factors across the blood-brain barrier.

Ischemic brain injury in adults and neonates is a significant clinical problem with limited therapeutic interventions. Currently, clinicians have only tPA available for stroke treatment and hypothermia for cerebral palsy. Owing to the lack of treatment options, there is a need for novel treatments such as stem cell therapy.

Nutraceutical intervention improves older adults' cognitive functioning.

Interventions to improve the cognitive health of older adults are of critical importance. In the current study, we conducted a double-blind, placebo-controlled clinical trial using a pill-based nutraceutical (NT-020) that contained a proprietary formulation of blueberry, carnosine, green tea, vitamin D3, and Biovin to evaluate the impact on changes in multiple domains of cognitive functioning. One hundred and five cognitively intact adults aged 65-85 years of age (M=73.

Multiple low-dose infusions of human umbilical cord blood cells improve cognitive impairments and reduce amyloid-β-associated neuropathology in Alzheimer mice.

Alzheimer's disease (AD) is the most common progressive age-related dementia in the elderly and the fourth major cause of disability and mortality in that population. The disease is pathologically characterized by deposition of β-amyloid plaques neurofibrillary tangles in the brain. Current strategies for the treatment of AD are symptomatic only.

Therapeutic benefit of treatment of stroke with simvastatin and human umbilical cord blood cells: neurogenesis, synaptic plasticity, and axon growth.

The therapeutic efficacy of cell-based therapy after stroke can be enhanced by making the host brain tissue more receptive to the administered cells, which thereby facilitates brain plasticity. We hypothesized that simvastatin increases human umbilical cord blood cell (HUCBC) migration into the ischemic brain and promotes brain plasticity and neurological functional outcome after stroke. Rats were subjected to 2-h middle cerebral artery occlusion (MCAo) and administered subtherapeutic doses of simvastatin (0.

Optimized turmeric extract reduces β-Amyloid and phosphorylated Tau protein burden in Alzheimer's transgenic mice.

In a previous in vitro study, the standardized turmeric extract, HSS-888, showed strong inhibition of Aβ aggregation and secretion in vitro, indicating that HSS-888 might be therapeutically important. Therefore, in the present study, HSS-888 was evaluated in vivo using transgenic 'Alzheimer' mice (Tg2576) over-expressing Aβ protein. Following a six-month prevention period where mice received extract HSS-888 (5mg/mouse/day), tetrahydrocurcumin (THC) or a control through ingestion of customized animal feed pellets (0.

The treatment of neurodegenerative disorders using umbilical cord blood and menstrual blood-derived stem cells.

Stem cell transplantation is a potentially important means of treatment for a number of disorders. Two different stem cell populations of interest are mononuclear umbilical cord blood cells and menstrual blood-derived stem cells. These cells are relatively easy to obtain, appear to be pluripotent, and are immunologically immature.

The effect of human umbilical cord blood cells on survival and cytokine production by post-ischemic astrocytes in vitro.

Cerebral ischemia induces death of all neural cell types within the region affected by the loss of blood flow. We have shown that administering human umbilical cord blood cells after a middle cerebral artery occlusion in rats significantly reduces infarct size, presumably by rescuing cells within the penumbra. In this study we examined whether the cord blood cells enhanced astrocyte survival in an in vitro model of hypoxia with reduced glucose availability.

Spirulina promotes stem cell genesis and protects against LPS induced declines in neural stem cell proliferation.

Adult stem cells are present in many tissues including, skin, muscle, adipose, bone marrow, and in the brain. Neuroinflammation has been shown to be a potent negative regulator of stem cell and progenitor cell proliferation in the neurogenic regions of the brain. Recently we demonstrated that decreasing a key neuroinflammatory cytokine IL-1beta in the hippocampus of aged rats reversed the age-related cognitive decline and increased neurogenesis in the age rats.

Acute Treatment With Herbal Extracts Provides Neuroprotective Benefits in In Vitro and In Vivo Stroke Models, Characterized by Reduced Ischemic Cell Death and Maintenance of Motor and Neurological Functions.

The present study explored the prophylactic and restorative benefits of cacao and red sage using both in vitro and in vivo models of stroke. For the in vitro study, we initially exposed primary rat cells to the established oxygen-glucose deprivation (OGD) stroke model followed by reperfusion under normoxic conditions, then added different cacao and sage concentrations to the cell culture media. Trypan blue cell viability results revealed specific cacao and sage dosages exerted significant therapeutic effects against OGD-induced cell death compared to cultured cells treated with extract vehicle.

Effects of blue-green algae extracts on the proliferation of human adult stem cells in vitro: a preliminary study.

Background: Adult stem cells are known to have a reduced restorative capacity as we age and are more vulnerable to oxidative stress resulting in a reduced ability of the body to heal itself. We have previously reported that a proprietary nutraceutical formulation, NT-020, promotes proliferation of human hematopoietic stem cells in vitro and protects stem cells from oxidative stress when given chronically to mice in vivo. Because previous reports suggest that the blue green algae, Aphanizomenon flos-aquae (AFA) can modulate immune function in animals, we sought to investigate the effects of AFA on human stem cells in cultures.

Menstrual blood cells display stem cell-like phenotypic markers and exert neuroprotection following transplantation in experimental stroke.

Cell therapy remains an experimental treatment for neurological disorders. A major obstacle in pursuing the clinical application of this therapy is finding the optimal cell type that will allow benefit to a large patient population with minimal complications. A cell type that is a complete match of the transplant recipient appears as an optimal scenario.

Human umbilical cord blood cells decrease microglial survival in vitro.

When human umbilical cord blood (HUCB) cells are systemically administered following middle cerebral artery occlusion (MCAO) in rats, they produce a reduction in infarct size resulting in recovery of motor function. Rats receiving HUCB cells have a less severe inflammatory response compared to MCAO stroke rats. The purpose of this study was to determine the interaction between HUCB cells and the main resident immune cells of the brain (microglia) under normoxic and hypoxic conditions in vitro.