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. 2024 Sep 12;86(11):1145–1155. doi: 10.1292/jvms.24-0190

Table 2. Changes in respiratory parameters and blood gas analysis over time following lipopolysaccharide (LPS) administration.

Elapsed time after LPS administration (min)
FZP:Time
0 15 30 45 60 120 180 240 P-value
PaO2 Control 458 (5) 577 (4) 507 (4) 337 (5) 157 (5) 377 (5) 248 (4) 210 (4)
(mmHg) [314–548] [548–585] [220–572] [83–438] [65–298] [108–439] [122–423] [94–373]
Low-FZP 445 (5) 573 (5) 470 (5) 455 (5) 404 (5) 351 (5) 203 (4) 145 (4) 0.25
[285–509] [538–584] [231–567] [135–525] [84–451] [99–430] [53–331] [50–250]
High-FZP 464 (5) 538 (5)* 523 (5) 515 (5)* 431 (5)* 424 (5) 331 (5) 302 (4) 0.88
[41–519] [500–546] [430–546] [501–525] [255–505] [272–460] [117–375] [99–354]

pHa Control 7.56 (5) 7.54 (4) 7.48 (4) 7.42 (5) 7.40 (5) 7.45 (5) 7.38 (4) 7.32 (4)
[7.49–7.57] [7.49–7.58] [7.43–7.56] [7.28–7.50] [7.23–7.46] [7.32–7.51] [7.19–7.46] [7.05–7.45]
Low-FZP 7.54 (5) 7.58 (5) 7.51 (5) 7.45 (5) 7.43 (5) 7.40 (5) 7.36 (4) 7.33 (4) 0.73
[7.5–7.57] [7.54–7.60] [7.34–7.53] [7.37–7.48] [7.38–7.45] [7.32–7.44] [7.22–7.41] [7.07–7.39]
High-FZP 7.55 (5) 7.57 (5) 7.52 (5) 7.51 (5)* 7.47 (5) 7.43 (5) 7.40 (5) 7.34 (5) 0.59
[7.53–7.57] [7.54–7.58] [7.42–7.53] [7.49–7.52] [7.44–7.49] [7.37–7.50] [7.32–7.44] [7.28–7.41]

PaCO2 Control 40 (5) 40 (4) 38 (4) 45 (5) 47 (5) 42 (5) 42 (4) 44 (4)
(mmHg) [36–47] [35–47] [33–43] [35–51] [40–60] [35–57] [32–72] [34–82]
Low-FZP 41 (5) 38 (5) 37 (5) 40 (5) 43 (5) 43 (5) 44 (4) 46 (4) 0.57
[39–47] [33–41] [34–51] [33–48] [36–53] [40–53] [39–69] [36–79]
High-FZP 39 (5) 38 (5) 37 (5) 36 (5) 39 (5)* 40 (5) 40 (5) 43 (5) 0.67
[36–42] [34–48] [36–44] [35–39] [37–41] [36–46] [38–46] [36–46]

HCO3 Control 35.6 (5) 34.5 (5) 27.1 (5) 28.2 (5) 28.5 (5) 27.1 (5) 24.6 (4) 22.2 (4)
(mEq/L) [32.4–37.6] [31.7–35.9] [26.1–30.0] [23.7–28.5] [24.1–29.7] [22.6–29.1] [21.0–28.4] [17.2–27.7]
Low-FZP 33.6 (5) 34.5 (5) 27.1 (5) 25.4 (5) 26.0 (5) 26.6 (5) 24.3 (4) 22.2 (3) 0.63
[33.1–37.4] [31.6–35.3] [23.4–30.4] [23.7–31.3] [25.0–31.1] [23.7–30.4] [23.5–27.6] [21.2–23.6]
High-FZP 33.9 (5) 33.8 (5) 29.7 (5) 28.2 (5) 27.1 (5) 26.5 (5) 24.1 (5) 22.4 (5) 0.55
[31.9–35.5] [31.3–34.5] [28.4–30.8] [28.0–29.4] [26.8–28.9] [25.7–29.2] [23.2–26.3] [19.7–24.3]

B.E. Control 11.5 (5) 11.7 (5) 4.8 (5) 4.2 (5) 4.0 (5) 3.7 (5) -1.1 (4) -4.8 (4)
(mmol/L) [10.1–14.1] [8.4–13.4] [2.9–8.1] [3.0–4.7] [3.1–4.1] [2.1–5.0] [-4.2–4.2] [-10.1–3.8]
Low-FZP 11.0 (5) 11.7 (5) 4.9 (5) 2.0 (5) 2.0 (5) 1.9 (5) -0.8 (4) -3.1 (3) 0.99
[10.1–14.4] [10.1–12.8] [-0.7–7.9] [0.3–6.7] [1.2–5.8] [-1.7–4.7] [-1.1– -0.1] [-8.3– -2.6]
High-FZP 11.0 (5) 11.1 (5) 7.0 (5) 5.6 (5)* 4.0 (5) 3.3 (5) -0.4 (5) -1.3 (5) 0.55
[9.4–12.8] [8.6–11.9] [4.1–7.8] [5.5–6.3] [3.2–5.4] [1.0–6.3] [-2.4–2.4] [-6.3– -0.8]

Lactate Control# 1.2 (5) 1.3 (5) 2.8 (5) 3.4 (5) 3.5 (5) 3.4 (5) 4.9 (4) 6.4 (4)
(mmol/L) [1.0–1.2] [1.0–1.6] [2.1–4.0] [2.1–3.9] [2.1–3.7] [3.3–8.5] [3.1–8.2] [3.0–11.4]
Low-FZP# 1.0 (5) 1.2 (5) 3.5 (5) 3.8 (5) 3.5 (5) 3.4 (5) 5.3 (4) 6.2 (3) 0.44
[0.8–1.2] [0.8–1.7] [2.7–4.5] [3.1–3.9] [2.8–3.9] [3.0–5.0] [3.6–6.4] [3.9–10.0]
High-FZP# 0.9 (5) 1.2 (5) 2.0 (5) 2.4 (5) 2.4 (5) 2.9 (5) 4.0 (5) 4.6 (5) 0.27
[0.6–1.1] [0.9–1.3] [1.3–4.0] [1.7–4.8] [2.1–4.6] [2.4–4.2] [3.6–6.2] [3.9–7.9]

EVLW Control 283 (5) 274 (5) 297 (5) 337 (5) 315 (5) 291 (5) 330 (4) 359 (4)
(%) [250–300] [239–317] [286–432] [323–363] [289–339] [283–474] [307–381] [274–428]
Low-FZP 374 (5) 392 (5) 378 (5) 373 (5) 354 (5) 360 (5) 399 (4) 407 (3) 0.82
[292–378] [290–478] [254–412] [284–414] [261–415] [272–461] [307–577] [367–412]
High-FZP 311 (5) 309 (5) 293 (5) 345 (5) 342 (5) 312 (5) 308 (5) 352 (5) 0.51
[282–338] [293–339] [284–354] [289–406] [285–384] [288–368] [287–433] [315–466]

PVPI Control# 2.62 (5) 2.45 (5) 2.80 (5) 3.78 (5) 4.02 (5) 3.83 (5) 4.68 (4) 4.91 (4)
(%) [1.80–2.80] [2.00–2.77] [1.80–3.88] [2.50–4.50] [2.50–4.38] [2.20–6.40] [2.65–4.97] [2.08–6.40]
Low-FZP# 2.73 (5) 3.17 (5) 2.95 (5) 3.57 (5) 3.67 (5) 3.60 (5) 4.61 (4) 6.16 (3) 0.72
[2.50–3.57] [2.77–5.33] [2.35–4.55] [3.10–4.77] [3.13–5.37] [3.16–5.83] [4.10–6.97] [3.90–6.50]
High-FZP# 3.03 (5) 3.15 (5) 3.03 (5) 3.88 (5) 4.30 (5) 4.30 (5) 4.73 (5) 5.20 (5) 0.64
[2.38–3.53] [2.40–3.37] [2.50–3.38] [3.27–3.93] [3.60–4.37] [3.37–4.80] [4.20–5.57] [3.68–6.73]

Values represent the median (number of pigs) [min–max]. Fuzapladib (FZP): Time: P-values indicate the P-values for the interaction between the dosage of fuzapladib and the elapsed time after LPS in a linear mixed-effects model. *: vs. control group (P<0.05), #: There was a significant increase in temporal changes within each group (P<0.05). ♭: There was a significant decrease in temporal changes within each group (P<0.05). PaO2: partial pressure of arterial oxygen, pHa: pH of arterial blood, PaCO2: partial pressure of arterial carbon dioxide, HCO3: bicarbonate ion, B.E.: base excess, EVLW: extravascular lung water, PVPI: pulmonary vascular permeability index. For other complete blood cell count and biochemical test results, please refer to Supplementary File 3.