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− | + | [[Information on nutritional supplements people with ALS have been taking]] | |
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* [https://en.wikipedia.org/wiki/Berberine Wikipedia page] | * [https://en.wikipedia.org/wiki/Berberine Wikipedia page] | ||
− | + | * [http://examine.com/supplements/Berberine/ Examine.com] summarizes: | |
− | * [http://examine.com/supplements/Berberine/ Examine.com] summarizes | + | :''Berberine is an alkaloid extracted from various plants used in Traditional Chinese Medicine.'' |
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− | + | :''Berberine is supplemented for its anti-inflammatory and anti-diabetic effects. It can also improve intestinal health and lower cholesterol. Berberine is able to reduce glucose production in the liver. Human and animal research demonstrates that 1500mg of berberine, taken in three doses of 500mg each, is equally effective as taking 1500mg of metformin or 4mg glibenclamide, two pharmaceuticals for treating type II diabetes. Effectiveness was measured by how well the drugs reduced biomarkers of type II diabetes.'' | |
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+ | :''Berberine may also synergize with anti-depressant medication and help with body fat loss. Both of these benefits need additional evidence behind them before berberine can be recommended specifically for these reasons.'' | ||
− | == Effect of berberine on ALS == | + | :''Berberine’s main mechanism is partly responsible for its anti-diabetic and anti-inflammatory effects. Berberine is able to activate an enzyme called Adenosine Monophosphate-Activated Protein Kinase (AMPK) while inhibiting Protein-Tyrosine Phosphatase 1B (PTP1B).'' |
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+ | According to Wikipedia, the half-life of berberine in vivo seems to be three to four hours, thus suggesting administration three times a day if steady levels are to be achieved. | ||
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+ | == Effect of berberine on ALS == | ||
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In rat cerebral cortex, berberine inhibits synaptosomal glutamate release.{{#pmid:23840629|Lin2013}} By downregulating several proinflammatory pathways{{#pmid:19208854|Jeong2009}} it presumably reduces the neuroinflammatory component of ALS. | In rat cerebral cortex, berberine inhibits synaptosomal glutamate release.{{#pmid:23840629|Lin2013}} By downregulating several proinflammatory pathways{{#pmid:19208854|Jeong2009}} it presumably reduces the neuroinflammatory component of ALS. | ||
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Berberine activates AMPK apparently by inhibiting mitochondria{{#pmid:19208854|Jeong2009}}, resulting into increased glycolysis. ''Note: progression seems to correlate with AMPK activation in SOD1 ALS but with AMPK inactivation in TDP-43 ALS{{#pmid:24595038|Perera2014}} .'' | Berberine activates AMPK apparently by inhibiting mitochondria{{#pmid:19208854|Jeong2009}}, resulting into increased glycolysis. ''Note: progression seems to correlate with AMPK activation in SOD1 ALS but with AMPK inactivation in TDP-43 ALS{{#pmid:24595038|Perera2014}} .'' | ||
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In a study{{#pmid:21086546|Campisi2011}} on rat astrocyte primary cultures, berberine and the alkaloid extract of B. aetnensis roots were able to restore the oxidative status modified by glutamate and the levels of TG2 to control values. Consequently berberine or the alkaloid extract of B. aetnensis roots are able to ameliorate the excessive production of glutamate, protein misfolding and aggregation, mitochondrial fragmentation, and neurodegeneration. | In a study{{#pmid:21086546|Campisi2011}} on rat astrocyte primary cultures, berberine and the alkaloid extract of B. aetnensis roots were able to restore the oxidative status modified by glutamate and the levels of TG2 to control values. Consequently berberine or the alkaloid extract of B. aetnensis roots are able to ameliorate the excessive production of glutamate, protein misfolding and aggregation, mitochondrial fragmentation, and neurodegeneration. | ||
− | + | On the negative side, berberine has been found to impair muscle metabolism by two mechanisms. It impairs mitochondrial function stimulating the expression of [http://www.pnas.org/content/98/25/14440.full atrogin-1] without affecting phosphorylation of forkhead transcription factors. The increase in atrogin-1 not only stimulates protein degradation but also suppresses protein synthesis, causing muscle atrophy.{{#pmid:20522589|Wang2010}} It has also been found{{#pmid:20393601|Sarna2010}} to restore SOD1 activity inhibited by lipopolysaccharides. | |
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Berberine is a PPAR gamma inhibitor{{#pmid:18520050|Zhou2008}}. ''Note: the significance of this for ALS needs further elaboration.'' It may be helpful against leaky gut, which is hypothetized to be a part of ALS pathology [source needed]. | Berberine is a PPAR gamma inhibitor{{#pmid:18520050|Zhou2008}}. ''Note: the significance of this for ALS needs further elaboration.'' It may be helpful against leaky gut, which is hypothetized to be a part of ALS pathology [source needed]. | ||
− | + | == Discussion threads on the ALSTDI forum == | |
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− | + | * [http://www.alstdi.org/forum/yaf_postst48627_berberine.aspx Berberine] | |
− | + | * [http://www.alstdi.org/forum/default.aspx?g=posts&t=46945 Berberine Suppresses Pro-Inflammatory Responses]: | |
− | + | :''In adipose tissue of obese db/db mice, BBR treatment significantly down-regulated the expression of pro-inflammatory genes such as TNFalpha, IL-1beta, IL-6, MCP-1, iNOS and COX2. Consistently, BBR inhibited LPS-induced expression of pro-inflammatory genes including IL-1beta, IL-6, iNOS, MCP-1, COX 2, and MMP9 in peritoneal macrophages and RAW 264.7 cells. Upon various pro-inflammatory signals including LPS, free fatty acids, and hydrogen peroxide, BBR suppressed the phosphorylation of MAPKs such as p38, ERK, and JNK, and the level of reactive oxygen species in macrophages.''{{#pmid:17971514|Yin2008}} | |
− | + | * [http://www.alstdi.org/forum/yaf_postst54133_ampk-activation-status-in-different-types-of-als.aspx AMPK activation status in different types of ALS]: | |
+ | :''While AMPK activation in motor neurons correlates with progression in mutant SOD1-mediated disease, AMPK inactivation mediated by PP2A is associated with mutant TDP-43-linked ALS.'' | ||
+ | * [http://www.alstdi.org/forum/yaf_postst50860_interesting--leaks-and-neuro-diseases.aspx Interesting - leaks in neuro diseases] | ||
+ | :''According to a 2010 study, berberine ameliorated damage to the tight junctions of intestinal epithelial cells induced by pro-inflammatory cytokines (in vitro). Berberine may thus serve as a targeted therapeutic agent for restoring barrier function in intestinal disease states.[16]'' | ||
− | == Where to get it == | + | == Regulated pathways == |
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+ | == Where to get it == | ||
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* [http://www.amazon.co.uk/Swanson-Berberine-400mg-60-Capsules/dp/B006MRK8LG Amazon.co.uk (400 mg capsules)] | * [http://www.amazon.co.uk/Swanson-Berberine-400mg-60-Capsules/dp/B006MRK8LG Amazon.co.uk (400 mg capsules)] | ||
+ | == References == | ||
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[[Category:Supplement data pages]] | [[Category:Supplement data pages]] | ||
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