Journal
OBESITY RESEARCH & CLINICAL PRACTICE
Volume 15, Issue 4, Pages 315-326Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.orcp.2021.06.009
Keywords
Spermidine; Polyamine; Obesity; Metabolic pathways
Categories
Funding
- Thailand Research Fund [TRF - MRG6280101]
- National Research Council of Thailand
- NSTDA Research Chair Grant from the National Science and Technology Development Agency Thailand
- Chiang Mai University Center of Excellence Award, Thailand
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Spermidine is a natural polyamine present in all living cells, and altering its levels may affect metabolic pathways, with activation of the rate-limiting enzyme SSAT improving glucose and lipid metabolism. Spermidine supplementation can protect against diet-induced obesity, while clinical studies have shown varied effects on obesity and metabolic syndrome patients and their association with polyamine-rich foods and cardiovascular disease risk.
Spermidine is a natural polyamine existing in all living cells known to play an important role in cellular functions. Recently, several studies have reported the effect of alterations in the spermidine pool on metabolic pathways. It has been shown that activation of spermidine/spermine N-1-acetyl-transferase (SSAT), the rate-limiting enzyme in polyamine catabolism, improved glucose and lipid metabolism. In addition, spermidine supplementation has been shown to protect against diet-induced obesity in animal models. However, some clinical studies demonstrated that polyamine levels are increased in childhood obesity and metabolic syndrome patients with type 2 diabetes (T2DM), while polyamine-rich food is associated with a lower incidence of cardiovascular disease (CVD). Therefore, this review aims to summarize and discuss the evidence from in vitro, in vivo and clinical studies on the possible roles of spermidine on metabolic pathways under physiological and obese conditions. All consistent and inconsistent findings are discussed and further studies aiming to fill any gaps in the knowledge are proposed.
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