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Research References CITATION NOTICE: The following references represent published scientific research conducted in controlled laboratory and preclinical settings

While a study found declined levels of NAD + and NAMPT levels and mitochondrial function in human sarcopenic muscle 249 , another study demonstrated no notable difference in NAD + or NAMPT levels in sarcopenic muscle of human patients 262

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Article Type Filters Updated to Reflect MeSH Changes to Publication Types March 31, 2026 The article type filters in PubMed have been updated to reflect Annual MeSH Processing (AMP) updates to Publication Types, including discontinued publication types from the past several years