reduced and oxidized glutathione S-Glutathionylation: From Molecular Mechanisms to Health Outcomes GSSG plays an essential role in cellular redox balance The role of glutathione reductase
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In a study by Kraus et al., NNMT inhibition in obese mice not only reduced fat mass but also spared lean muscle mass , suggesting that the compound does not induce general catabolism, a common side effect of many weight-loss agents (Kraus D, 2014)
Specifically the HNF4A gene is located on chromosome 20q13.12 and is composed of 13 exons that generate 10 alternatively spliced mRNAs

& Fenicheil, P

in Nature Medicine demonstrated that blocking NNMT in white adipose tissue increased energy expenditure, reduced fat mass, and improved insulin sensitivity in animal models even without changes in diet or activity (Kraus et al., Nature Medicine )

Lancet 2 , 12631267 (1960)