Component
Human plasma NAD concentration
Context-specific entity; species, compartment and exposure are stated on each claim.
2 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
In a randomized pilot with eight NAD+ recipients and three saline controls, 750 mg NAD+ over six hours produced a significant plasma NAD increase at the six-hour endpoint, with no significant early rise during the first two hours.
Experimental context and source evidence
- availability_state
- biomarker_context Imported condition classification; unverified.
- evidence_access
- Primary full text
- experimental_model
- Human pilot; approximately 3 micromoles/minute; serial plasma and urine sampling.
- limitations
- Small pharmacokinetic study; disappearance from plasma does not prove intact tissue uptake or clinical benefit.
- nutrient_topic
- NAD+ collection; molecular form, preparation, species, exposure and manipulation remain explicit. · NAD+
- plain_language
- Infusion input and measured blood concentration need not rise together immediately.
- primary_references
- A Pilot Study Investigating Changes in the Human Plasma and Urine NAD+ Metabolome During a 6 Hour Intravenous Infusion of NAD. · 2019 · https://pubmed.ncbi.nlm.nih.gov/31572171/ · DOI 10.3389/fnagi.2019.00257
- trigger_kind
- biomarker_context Imported condition classification; unverified.
NAD+: compartmental supply, consumption and cross-nutrient mechanisms (2026-09-19) · lines 284–290
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Human pilot; approximately 3 micromoles/minute; serial plasma and urine sampling. · source_derived_draft · unverified_draft
## nad-plus-iv-plasma Infusion input and measured blood concentration need not rise together immediately. In a randomized pilot with eight NAD+ recipients and three saline controls, 750 mg NAD+ over six hours produced a significant plasma NAD increase at the six-hour endpoint, with no significant early rise during the first two hours. Model: Human pilot; approximately 3 micromoles/minute; serial plasma and urine sampling. Limitations: Small pharmacokinetic study; disappearance from plasma does not prove intact tissue uptake or clinical benefit. Evidence access: Primary full text A Pilot Study Investigating Changes in the Human Plasma and Urine NAD+ Metabolome During a 6 Hour Intravenous Infusion of NAD. · 2019 · https://pubmed.ncbi.nlm.nih.gov/31572171/ · DOI 10.3389/fnagi.2019.00257
Complete structured claim and evidenceThe same LNAD+ trial found unchanged plasma NAD while methyl-nicotinamide and 2PY increased.
Experimental context and source evidence
- availability_state
- biomarker_context Imported condition classification; unverified.
- evidence_access
- Primary abstract
- experimental_model
- Same five-day randomized trial; primary analysis n=50.
- limitations
- Catabolite concentration changes are consistent with metabolism but are not direct quantitative flux measurements or proof of intact uptake.
- nutrient_topic
- NAD+ collection; molecular form, preparation, species, exposure and manipulation remain explicit. · NAD+
- plain_language
- Blood compartments and breakdown products can move differently.
- primary_references
- Oral LNAD+ rapidly elevates whole blood intracellular NAD and metabolic flux without elevating plasma NAD: evidence from a randomized controlled trial. · 2026 · https://pubmed.ncbi.nlm.nih.gov/42530810/ · DOI 10.1007/s11357-026-02399-1
- trigger_kind
- biomarker_context Imported condition classification; unverified.
NAD+: compartmental supply, consumption and cross-nutrient mechanisms (2026-09-19) · lines 316–322
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Same five-day randomized trial; primary analysis n=50. · source_derived_draft · unverified_draft
## nad-plus-oral-formulation-plasma Blood compartments and breakdown products can move differently. The same LNAD+ trial found unchanged plasma NAD while methyl-nicotinamide and 2PY increased. Model: Same five-day randomized trial; primary analysis n=50. Limitations: Catabolite concentration changes are consistent with metabolism but are not direct quantitative flux measurements or proof of intact uptake. Evidence access: Primary abstract Oral LNAD+ rapidly elevates whole blood intracellular NAD and metabolic flux without elevating plasma NAD: evidence from a randomized controlled trial. · 2026 · https://pubmed.ncbi.nlm.nih.gov/42530810/ · DOI 10.1007/s11357-026-02399-1
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.