Guest guest Posted September 23, 2008 Report Share Posted September 23, 2008 [Moderator: Kudos for a well composed post!] I recently decided to try Lions Mane (a mushroom also called Hericium erinaceus) as part of my effort to get my brain back. I took it because I read that it stimulates the synthesis of Nerve Growth Factor (NGF) and promotes the process of myelination, thus enhancing cognitive functions and helping to slow the onset of dementia associated with various neurological conditions. While I am thinking more clearly, I cannot tell the source because I started a few weeks after starting nootropics and I had relatives staying with me for nine days so I was more focused on staying on my feet and paying less attention to any changes. I was wondering if anyone else has any experience with it. The following is the research I found on it thus far. Nothing directly related to using it with ME Medicinal and nutraceutical genetic resources of mushrooms http://tinyurl.com/4txett The influence of Hericium erinaceus extract on myelination process in vitro. Myelin sheaths, wrapping axons, perform the following important functions: support, protection, feeding and isolation. Injury of myelin compact structure leads to an impairment and severe illness of the nerve system. The search for substances, which provide regulatory and protective effects on the normal myelination as well as stimulating action on the remyelination after myelin damage, is of special interest. Recently it was shown that extract from mushroom Hericium erinaceus had activating action on the nerve tissue. Obtained data revealed the normal growth of the nerve and glial cells with extract at cultivating. No pathologic or toxic action of the extract has been found. The cell ultrastructure was intact and similar to that observed in vivo. The process of myelination in the presence of the extract began earlier as compared to controls and was characterised by a higher rate. Thus, extract of H. erinaceus promoted normal development of cultivated cerebellar cells and demonstrated a regulatory effect on the process of myelin genesis process in vitro. http://www.ncbi.nlm.nih.gov/pubmed/12675022 Nerve growth factor-inducing activity of Hericium erinaceus neurotrophic factor-like substances or their inducers are expected to be applied to the treatment of neurodegenerative diseases such as Alzheimer's disease. In the present study, we firstly examined the effects of ethanol extracts of four edible mushrooms, Hericium erinaceus (Yamabushitake), Pleurotus eryngii (gi), Grifola frondosa (Maitake), and Agaricus blazei (Himematsutake), on nerve growth factor (NGF) gene expression in 1321N1 human astrocytoma cells. Among the four mushroom extracts, only H. erinaceus extract promoted NGF mRNA expression in a concentration-dependent manner. In addition, secretion of NGF protein from 1321N1 cells was enhanced by H. erinaceus extracts, and the conditioned medium of 1321N1 cells incubated with H. erinaceus extract enhanced the neurite outgrowth of PC12 cells. However, hericenones C, D and E, constituents of H. erinaceus, failed to promote NGF gene expression in 1321N1 cells. The enhancement of NGF gene expression by H. erinaceus extracts was inhibited by the c-jun N-terminal kinase (JNK) inhibitor SP600125. In addition, H. erinaceus extracts induced phosphorylation of JNK and its downstream substrate c-Jun, and increased c-fos expression, suggesting that H. erinaceus promotes NGF gene expression via JNK signaling. Furthermore we examined the efficacy of H. erinaceus in vivo. ddY mice given feed containing 5% H. erinaceus dry powder for 7 d showed an increase in the level of NGF mRNA expression in the hippocampus. In conclusion, H. erinaceus contains active compounds that stimulate NGF synthesis via activation of the JNK pathway; these compounds are not hericenones. http://www.ncbi.nlm.nih.gov/pubmed/18758067 Myelination and demyelination processes in the rat cerebellum cell culture We observed manifestations of the myelination process in dissociated culture of the cerebellar tissue of newborn rats and modifications of the structure of myelin sheaths after treating the culture with a demyelinating factor, blood serum of patients suffering from multiple sclerosis (MS). On day in vitro (DIV) 26, in the control myelin sheaths of the axons demonstrated the closest resemblance to those observed in vivo, and we selected this term for inducing demyelination. Addition of the serum of MS patients to the culturing medium evoked rapid (in 3-6 hours) dramatic changes in the ultrastructure of myelin sheaths; these were a decrease in the number of the lamellae, their splitting and invagination, formation of vesicles, etc. The serum of MS patients in an acute stage of the disease exerted more intensive demyelination effects than that of patients in a remission stage. http://www.ncbi.nlm.nih.gov/pubmed/14663898 Quote Link to comment Share on other sites More sharing options...
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