Visfatin, also studied as nicotinamide phosphoribosyltransferase (NAMPT), is studied in laboratory research as an enzyme in NAD biosynthesis and as a tool in cellular energetics studies in vitro. Laboratory work uses defined recombinant material so experiments are reproducible from lot to lot.

Structure: NAMPT functions as a homodimer, and dimer assembly and catalytic-site integrity are key variables in laboratory studies comparing preparations in controlled systems. Identity and purity are confirmed by HPLC and mass spectrometry, and the lot-matched certificate of analysis is reviewed before use.

Laboratory applications: enzymatic activity assays in vitro, cell culture studies of NAD-pathway models, and stability studies under controlled laboratory conditions. Vehicle controls, analytical verification, and replication are standard. In vitro findings describe behavior in laboratory systems only; no conclusions about human use can be drawn from them.

Analytical notes: store lyophilized material sealed, protected from light and moisture; verify identity and purity by HPLC/MS on receipt; avoid repeated freeze-thaw cycles; record lot numbers in laboratory documentation.

Disclaimer: This material is supplied for laboratory research purposes only. Not for human consumption. Not for medical, therapeutic, diagnostic, or veterinary use. No dosing, reconstitution-for-use, or efficacy information is provided or implied.

Citations: standard visfatin and NAMPT literature; enzyme characterization reviews; standard HPLC/MS methods.