Table 1. Demographic, parasite, and multiplexed microbead-based immunoassay (Luminex) data obtained from the plasma of a representative subset of 31 P. vivax patients and 9 healthy donors (controls).
Parameters | Healthy donors (n = 36) | Symptomatic Pv patients (n = 79) | p-Value(Pv vs. control) |
---|---|---|---|
Median [IQ 25–75] | Median [IQ 25–75] | ||
Age | 32 (23–49) | 36 (28–45) | 0.06 |
Parasitaemia (103/mL) | - | 4.29 [1.86–6.62] | |
Parasitaemia (%) | - | 0.76 [0.57–1.25] | |
Parasite load (copies 18S RNA/mL) | - | 26,642 [9253-522,297] | |
PvLDH (O.D.) | - | 0.18 [0.005–0.34] | |
Plasma biomarkers | Healthy donors (n = 9) | Symptomatic Pv patients (n = 31) | p-Value (Pv vs. control) |
TNF-α (pg/mL) | 17.2 [11.0–22.3] | 38.4 [30.0–69.6] | <0.0001 |
IL-1α (pg/mL) | 11.9 [10.0–19.5] | 25.4 [19.8–33.5] | 0.0004 |
IL-1β (pg/mL) | 12.0 [8.0–12.8] | 21.4 [14.5–27.6] | <0.0001 |
IL-6 (pg/mL) | 3.0 [2.5–3.7] | 33.4 [7.6–133.1] | <0.0001 |
IL-8 (pg/mL) | 2.2 [0.6–2.4] | 6.4 [2.7–19.9] | 0.0005 |
IL-10 (pg/mL) | –* | 314 [169–562] | – |
G-CSF (pg/mL) | 9.485 [9.485–9.485] | 101.5 [33.49–239.6] | <0.0001 |
L-selectin (ng/mL) | 326 [287–391] | 481 [386–579] | 0.0019 |
ICAM-1 (ng/mL) | 323 [260–464] | 634 [456–849] | 0.0026 |
VCAM-1 (ng/mL) | 819 [623–959] | 2875 [1753–5108] | <0.0001 |
E-Selectin (ng/mL) | 26.4 [22.5–33.7] | 56.7 [41.5–74.1] | 0.0001 |
P-selectin (ng/mL) | 17.0 [15.4–20.6] | 22.2 [17.6–25.7] | 0.0621 |
Angiopoietin-1 (ng/mL) | 0.4 [0.3–0.6] | 0.5 [0.2–0.9] | 0.8874 |
Angiopoietin-2 (ng/mL) | 1.8 [1.5–2.1] | 4.3 [2.7–5.3] | 0.0003 |
Ang-2:Ang-1 ratio | 4.2 [2.7–5.6] | 12.14 [2.7–40.2] | 0.03 |
VWF-A2 (pg/mL) | 126 [120–150] | 218 [199–277] | <0.0001 |
ADAMTS13 (ng/mL) | 1110 [483–1740] | 776 [572–1328] | 0.5485 |
PAI-1 (pg/mL) | 78.9 [62.4–96.4] | 112 [69.3–242] | 0.1541 |
CD40L (ng/mL) | 0.5 [0.4–0.7] | 1.0 [0.7–1.3] | 0.0001 |
Syndecan-1 (ng/mL) | 1.8 [1.6–2.4] | 3.7 [2.9–6.0] | 0.0003 |
IL-11 (ng/mL) | 3.5 [2.9–4.3] | 5.7 [4.7–6.4] | <0.0001 |
TPO (ng/mL) | 2.0 [1.7–2.2] | 3.0 [2.6–3.4] | <0.0001 |
CXCL4 (ng/mL) | 0.8 [0.6–1.2] | 1.4 [0.7–2.8] | 0.1236 |
CXCL7 (ng/mL) | 0.4 [0.4–0.5] | 0.73 [0.4–1.7] | 0.1958 |
SCF (pg/mL) | 47.61 [37.34–89.34] | 45.68 [36.22–61.39] | 0.1594 |
PvLDH: P. vivax lactate dehydrogenase.
* = under detection limit.