Assertion: nicotinamide adenine dinucleotide's role | /r/CapableOf | remain unclear
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text: Although most studies suggest that Sirt1 plays a proinflammatory role in the development of RA, the role of Sirt1 in synovitis and T cell differentiation remains unclear and is controversial.30,32,33,35-39
text: The exact role that the NOX enzymes play in obesity remains unclear .