Journal: Journal of the Endocrine Society
Article Title: Subclinically low BMD in young men is associated with compromised bone microarchitecture and lower lean mass
doi: 10.1210/jendso/bvag003
Figure Lengend Snippet: Biomarkers. Fig. 1 depicts all assessed biomarker concentrations. The total hip, femoral neck, or lumbar spine (Lower) group is depicted in black filled circles, while the control (Con) group is in clear squares. A, P1NP (pg/mL); B, alkaline phosphatase (ALP) (pg/mL); C, tartrate-resistant acid phosphatase 5b (TRAP5b) (U/L); D, sclerostin (pmol/L); E, β C-terminal cross-linked telopeptide of type I collagen (βCTX) (pmol/L); F, testosterone (ng/mL); G, estradiol (pg/mL); H, parathyroid hormone (PTH) (pg/mL); I, insulin-like growth factor-1 (IGF-1) (ng/mL); J, insulin-like growth factor-1 binding protein 5 (IGFBP-5) (ng/mL).
Article Snippet: Commercially available enzyme-linked immunosorbent assays were used to determine circulating concentrations of serum procollagen type I N-terminal propeptide (PINP; Novus catalog No. NBP2-76465, RRID:AB_3720306, 1:200 dilution, CV 5.3%, sensitivity 9.4 pg/mL), alkaline phosphatase (ALP; Novus catalog No. NBP2-68197, RRID:AB_3720307, CV 6.0%, sensitivity 46.9 pg/mL), tartrate-resistant acid phosphatase 5b (TRAP5b; Immunodiagnostic Systems catalog No. SB-TR201A, RRID:AB_3095995, CV 4.7%, sensitivity 0.4 U/L), sclerostin (Biomedica catalog No. BI-20492, RRID:AB_2894889, CV 6.4%, sensitivity 3.2 pmol/L), testosterone (Alpco Diagnostics catalog No. 11-TESHU-E01, RRID:AB_3720308, CV 4.2%, sensitivity 0.02 ng/mL), estradiol (Alpco Diagnostics catalog No. 11-ESTHU-E01, RRID:AB_2756385, CV 7.6%, sensitivity 10 pg/mL), insulin like growth factor-1 (IGF-1; Alpco Diagnostics catalog No. 22-IGFHU-E01, RRID:AB_2923276, 1:20 dilution, average CV 3.3%, assay sensitivity 9.4 pg/mL), IGF binding protein-5 (IGFBP-5; R and D Systems catalog No. DY875, RRID:AB_3720311, 3× dilution, CV 2.7%), parathyroid hormone (PTH; (Alpco Diagnostics catalog No. 21-IPTHU-E01, RRID:AB_2943035), CV 7.3%, sensitivity 1.6 pg/mL), and plasma β C-terminal cross-linked telopeptide of type I collagen (βCTX; Immunodiagnostic Systems catalog No. IS-3000N, RRID:AB_3720313, CV 6.2%, sensitivity 3.2 pmol/L).
Techniques: Biomarker Discovery, Control, Binding Assay