Showing posts with label neuroprotective. Show all posts
Showing posts with label neuroprotective. Show all posts

Propolis, Abundant Source of Beneficial Effects for Human Health

A molecular review on the rich spectrum of beneficial properties found in Propolis... 


Beneficial Effects of Propolis on Human Health and Neurological Diseases
Frontiers in Bioscience (Elite Ed), 2012 Jan 4

Propolis is a natural product, collected by honeybees Apis mellifera, from various plant sources. Propolis is extensively used in foods and beverages because it improves human health. It contains more than 300 natural compounds such as polyphenols, phenolic aldehydes, sequiterpene-quinones, coumarins, amino acids, steroids and inorganic compounds.

Propolis exhibits a broad spectrum of biological and pharmacological properties such as antimicrobial, antioxidant, anti-inflammatory, immunomodulatory, antitumor, anticancer, antiulcer, hepatoprotective, cardioprotective, and neuroprotective actions. The chemical composition and beneficial properties of propolis vary greatly depending on the phytogeographical areas, seasonal collection time, and botanical source. Polyphenols found in fruits and vegetables are beginning to receive increased attention due to their vital role in protecting neural cells from oxidative stress and neuroinflammation associated with normal aging and chronic age-related diseases.

Propolis is one of the most abundant sources of polyphenols (mainly flavonoids and phenolic acids). This overview is an attempt to discuss the molecular mechanism underlying the potential beneficial effects of propolis on human health and neurological diseases...

Bee Venom May Help Treat Parkinson's Disease

Clinical trials are currently ongoing in Parisian Hospitals using Bee Venom in the treatment of Parkinson's Disease... 

Bee Venom Protects SH-SY5Y Human Neuroblastoma Cells from 1-Methyl-4-Phenylpyridinium-Induced Apoptotic Cell Death
Brain Research, 2011 Oct 6

Parkinson's disease (PD) is a progressive neurodegenerative disorder characterized by progressive selective loss of dopaminergic neurons in the substantia nigra. Recently, bee venom was reported to protect dopaminergic neurons in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine induced mice PD model, however, the underlying mechanism is not fully understood.

The objective of the present study is to investigate the neuroprotective mechanism of bee venom against Parkinsonian toxin, 1-methyl-4-phenylpyridine (MPP(+)), in SH-SY5Y human neuroblastoma cells.

Our results revealed that bee venom pretreatment (1-100ng/ml) increased the cell viability and decreased apoptosis assessed by DNA fragmentation and caspase-3 activity assays in MPP(+)-induced cytotoxicity in SH-SY5Y cells. Bee venom increased the anti-apoptotic Bcl-2 expression and decreased the pro-apoptotic Bax, cleaved PARP expressions.

In addition, bee venom prevented the MPP(+)-induced suppression of Akt phosphorylation, and the neuroprotective effect of bee venom against MPP(+)-induced cytotoxicity was inhibited by a phosphatidylinositol 3-kinase (PI3K) inhibitor, LY294002.

These results suggest that the anti-apoptotic effect of bee venom is mediated by the cell survival signaling, the PI3K/Akt pathway. These results provide new evidence for elucidating the mechanism of neuroprotection of bee venom against PD.

Propolis Extract Protects Nerve Cells

Propolis, the proven protector against bacteria, mold, viruses, cancer and inflammation, now adds neurprotection to its list --- WOW!!

Northeast Portuguese Propolis Protects Against Staurosporine and Hydrogen Peroxide-Induced Neurotoxicity in Primary Cortical Neurons
Food and Chemical Toxicology, Article in Press 



About this Journal
"The present work describes the protective effects of the crude Northeast Portuguese propolis enriched phenolic extract against staurosporine (STS) and hydrogen peroxide (H2O2)-induced neurotoxicity.


These two stress inducers act through various pathways, including the production of reactive oxygen species (ROS) and the induction of apoptosis through caspases activation. STS (25 and 50 nM) and H2O2 (100 μM) increased intracellular ROS and diminished cellular reducing ability in cultured cortical neurons, under conditions unrelated with massive loss of plasma membrane integrity, suggesting decreased neuronal function. Moreover, 25 nM STS and 100 μM H2O2 increased caspase-3 activity by about 2.8-fold and 4.6-fold, respectively. Pre-treatment of cortical neurons with the ethanolic extract of propolis (EEP) in the range of 0.01 to 1 μg/ml showed no protective effect on cell reducing capacity, but decreased H2O2-stimulated increment in ROS production by about 17%. In addition, the EEP attenuated STS- or H2O2- induced activation of caspase-3 by 23-39%.



Highlights
► The Northeast Portuguese propolis phenolic extract is neuroprotective.
► The propolis phenolic extract decreases H2O2-stimulated increment of ROS production.
► The propolis phenolic extract attenuates STS- and H2O2-induced activation of caspase-3.

Overall, the results show moderate protective effects induced by Northeast Portuguese EEP in c subjected to stress stimuli."

Bee Venom for the Treatment of Parkinson Disease

Great news for advocates of BVT and sufferers of Parkinsons...
C'est curieux ça va passer en France... Happy Thérapie pour tous
ClinicalTrials.gov








Bee Venom for the Treatment of Parkinson's Disease (MIREILLE)
ClinicalTrials.gov



This study is ongoing, but not recruiting participants.
 
Sponsor: Assistance Publique - Hôpitaux de Paris 
Information provided by: Assistance Publique - Hôpitaux de Paris 
ClinicalTrials.gov Identifier: NCT01341431 
Official Title: 
Evaluation of the Symptomatic and Neuroprotective Effects of Bee Venom for the Treatment of Parkinson Disease

Purpose: The purpose of this study is to evaluate the efficacy of repeated (monthly) injections of bee venom on motor symptoms of Parkinson's disease over a period of one year, also the potential effects of this treatment on disease progression compared to placebo (saline injections)…
 
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