- Get Fatigued easily?
- Have insulin resistance?
- Don’t burn fatty acids well?
SIRT3 combats all of these, and if you are suffering from these issues, SIRT3 might be a component of the problem…
Summary of SIRT3
SIRT3 is a mitochondrial protein and has also been studied in regards to longevity and metabolic syndrome.
It is involved in controlling reactive oxygen species in the cell. Higher levels of SIRT3 are connected to longevity.
Reduction of SIRT3 function was found to lead to mitochondrial dysfunction and metabolic syndrome .
Lower SIRT3 is also thought to be a causal factor for pulmonary hypertension .
SIRT3 and Increased Energy
One major function of SIRT3 is regulation of mitochondrial electron transport chain activity to increase energy production, particularly from fat.
SIRT3 is important for activating enzymes (e.g. LCAD) that break down and burn fat for energy. Simultaneously, SIRT3 decreases carb metabolism .
SIRT3 increases increase acetyl-CoA (by increasing acetyl-CoA synthetase 2), which is the fuel for the Kreb cycle .
Additionally, SIRT3 directly stimulates the Krebs cycle to increase energy production (especially the conversion of isocitrate to α-ketoglutarate by increasing IDH2 activity) .
SIRT3 promotes mitochondrial function by enhancing the activity of the first (NDUFS1&9) and second complexes (SDHA) in the mitochondrial electron transport chain. It might also stimulate the fifth complex .
SIRT3 results in increased NADPH increased reduced glutathione in mitochondria (means it’s charged and ready to combat free radicals), and decreased DNA damage in the ear (cochlea) and in other tissues.
SIRT3 decreases the synthesis of proteins in the mitochondria (by decreasing the activity of the ribosomal protein MRPL10) .
Technical: SIRT3 activates/increases: AceCS2, HMGCS2 (ketogenesis), GDH (converts glutamate to alpha-ketoglutarate), SDH, Ku70, MnSOD, FOXO3a, cyclophilin D (stop mPTP), H3-K56 (causing increased gene expression),ornithine transcarbamylase (OTC -a rate-limiting enzyme in the urea cycle), NDUFA9 (complex I), ICDH2 (promotes regeneration of antioxidants and catalyzes the citric acid cycle) … SIRT3 Suppresses: p53, MRPL10 , Skp2 
Natural Ways to Increase SIRT3
- Calorie restriction 
- Cold 
- Exercise 
- Estrogen/Estrogen-related receptor alpha 
- Nicotinamide Riboside 
- PQQ 
- Lipoic Acid 
- Resveratrol 
- Berberine 
- Bitter melon 
- EGCG [8, 18] – but EGCG decreases SIRT3 in cancer cells (good) 
- Oroxylin A/Chinese Skullcap 
- Leucine 
- HMB 
- ALCAR 
- Hydrogen Peroxide 
- Dan shen (Salvianolic acid A) 
- Kaempferol 
- Areca nut (keratinocytes) 
- Caffeic acid prevented decreased SIRT3 in liver injury model … Chlorogenic acid/Green Coffee Extract also has caffeic acid.
What Inhibits SIRT3
SIRT3 Can Contribute to Cancer
SIRT3 and the hallmarks of cancer. SIRT3 can link to six hallmarks of cancer, such as resisting cell death, genomic instability, and mutation, sustaining proliferative signaling, dysregulation of cellular energetics, tumor-promoting inflammation and invading growth suppressors .
If you want to analyze your genome, SelfDecode is the best tool out there to do that.
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