HDL-1 (large HDL)
lipoproteinLarge HDL particles mediate reverse cholesterol transport and protect against lipid retention and atherosclerosis progression.
Pathway placement
Cascade stepLipid retention & oxidation
Confidencehigh
RationaleLarge HDL protects; inverse association with atherosclerosis.
Druggability
Not assessed (no mapped human gene target).
Type I vs Type II discrimination
ScoresLow-confidence (proxy)
R — rupture / Type-I23
C — confounder / Type-II36
A — assay feasibility82
E — evidence strength15
T1DI (composite)5
Specificity differential (R−C)-12.7
Confounder panel (Type-II drivers)
No confounder evidence retrieved.
Tier: light (literature co-occurrence proxy — lower confidence). See the discrimination table for all markers.
Assay & specimen
Specialized reference method
Specimen
Serum or plasma (EDTA)
Collection tube
K2/K3-EDTA (lavender-top) · Serum separator (gold/red-top, SST)
Method / principle
NMR lipoprotein particle analysis or density-gradient ultracentrifugation
Reagent / substrate
No chemical reagent — NMR spectral deconvolution of lipid methyl signals (or ultracentrifugal separation by density)
Platform
NMR (LabCorp NMR LipoProfile) / analytical ultracentrifuge
Turnaround · availability
Send-out · Specialized reference lab
Literature evidence(1)
- Association of lipoprotein subfractions with incidence of type 2 diabetes among five U.S. Race and Ethnic groups: The Mediators of Atherosclerosis in South Asians Living in America (MASALA) and Multi-Ethnic study of Atherosclerosis (MESA).Diabetes research and clinical practice · 2023 · PMID 37777016 · doi