Chinese Journal of Chromatography ›› 2026, Vol. 44 ›› Issue (3): 302-311.DOI: 10.3724/SP.J.1123.2025.05010
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MU Danni, QI Zhihong, MA Yichen, GAO Yumeng, LI Yuemeng, ZHANG Qi, YU Songlin, QIU Ling, CHENG Xinqi(
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Received:2025-05-16
Online:2026-03-08
Published:2026-03-12
Supported by:CLC Number:
MU Danni, QI Zhihong, MA Yichen, GAO Yumeng, LI Yuemeng, ZHANG Qi, YU Songlin, QIU Ling, CHENG Xinqi. Analysis of stimulating factors for serum copeptin based on liquid chromatography-tandem mass spectrometry[J]. Chinese Journal of Chromatography, 2026, 44(3): 302-311.
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URL: https://www.chrom-china.com/EN/10.3724/SP.J.1123.2025.05010
| Time/min | C(Copeptin)/(pg/mL) | Copeptin fold change | C(GH)/(ng/mL) |
|---|---|---|---|
| 0 | 24.40 (14.05, 36.40) | \ | 1.10 (0.20, 3.07) |
| 30 | 52.00 (27.30, 734.70)* | 1.91 (0.89, 21.00) | 7.85 (2.30, 11.17) |
| 60 | 144.00 (46.85, 310.75)* | 4.82 (2.10, 13.00) | 8.15 (4.27, 13.07) |
| 90 | 88.40 (30.50, 196.50)* | 2.36 (1.31, 9.23) | 4.00 (1.40, 5.50) |
| 120 | 71.45 (35.67, 196.50)* | 3.33 (1.54, 8.88) | 2.00 (0.72, 3.90) |
| Maximum | 255.00 (60.72, 807.25)* | 8.47 (3.27, 28.45) | 10.40 (6.55, 14.22) |
Table 1 Changes in levels of copeptin and growth hormone during the levodopa stimulation test
| Time/min | C(Copeptin)/(pg/mL) | Copeptin fold change | C(GH)/(ng/mL) |
|---|---|---|---|
| 0 | 24.40 (14.05, 36.40) | \ | 1.10 (0.20, 3.07) |
| 30 | 52.00 (27.30, 734.70)* | 1.91 (0.89, 21.00) | 7.85 (2.30, 11.17) |
| 60 | 144.00 (46.85, 310.75)* | 4.82 (2.10, 13.00) | 8.15 (4.27, 13.07) |
| 90 | 88.40 (30.50, 196.50)* | 2.36 (1.31, 9.23) | 4.00 (1.40, 5.50) |
| 120 | 71.45 (35.67, 196.50)* | 3.33 (1.54, 8.88) | 2.00 (0.72, 3.90) |
| Maximum | 255.00 (60.72, 807.25)* | 8.47 (3.27, 28.45) | 10.40 (6.55, 14.22) |
| Time/min | C(Copeptin)/(pg/mL) | Copeptin fold change | C(GH)/(ng/mL) | C(Glucose)/(mmol/L) |
|---|---|---|---|---|
| 0 | 23.50 (17.00, 62.40) | \ | 0.50 (0.30, 0.60) | 4.80 (4.80, 5.30) |
| 30 | 120.00 (27.10, 245.00) | 2.12 (0.92, 12.34) | 4.30 (1.70, 12.80) | 2.10 (2.00, 2.50) |
| 60 | 90.20 (34.60, 123.00) | 2.20 (1.17, 4.30) | 4.30 (2.00, 11.20) | 3.90 (3.40, 4.20) |
| 90 | 58.30 (29.10, 136.00) | 1.51 (0.98, 6.36) | 2.50 (0.60, 7.00) | 4.50 (3.50, 5.00) |
| 180 | 51.00 (30.10, 145.00) | 3.11 (0.85, 4.13) | 0.70 (0.40, 2.90) | 5.10 (4.40, 5.40) |
| Maximum | 200.30 (34.60, 290.00)* | 5.85 (1.17, 12.34) | 8.40 (2.60, 12.80) | 2.10(2.00,2.50) |
Table 2 Changes in levels of copeptin, growth hormone and glucose during the insulin tolerance test
| Time/min | C(Copeptin)/(pg/mL) | Copeptin fold change | C(GH)/(ng/mL) | C(Glucose)/(mmol/L) |
|---|---|---|---|---|
| 0 | 23.50 (17.00, 62.40) | \ | 0.50 (0.30, 0.60) | 4.80 (4.80, 5.30) |
| 30 | 120.00 (27.10, 245.00) | 2.12 (0.92, 12.34) | 4.30 (1.70, 12.80) | 2.10 (2.00, 2.50) |
| 60 | 90.20 (34.60, 123.00) | 2.20 (1.17, 4.30) | 4.30 (2.00, 11.20) | 3.90 (3.40, 4.20) |
| 90 | 58.30 (29.10, 136.00) | 1.51 (0.98, 6.36) | 2.50 (0.60, 7.00) | 4.50 (3.50, 5.00) |
| 180 | 51.00 (30.10, 145.00) | 3.11 (0.85, 4.13) | 0.70 (0.40, 2.90) | 5.10 (4.40, 5.40) |
| Maximum | 200.30 (34.60, 290.00)* | 5.85 (1.17, 12.34) | 8.40 (2.60, 12.80) | 2.10(2.00,2.50) |
| Time/min | C(Copeptin)/(pg/mL) | Copeptin fold change | C(GH)/(ng/mL) | C(Glucose)/(mmol/L) |
|---|---|---|---|---|
| 0 | 11.90 (8.80, 21.40) | \ | 2.05 (1.32, 5.72) | 5.25 (4.82, 5.77) |
| 30 | 16.95 (9.05, 29.80) | 1.09 (0.80, 1.47) | 2.35 (0.70, 5.05) | 8.75 (7.72, 10.32) |
| 60 | 12.00 (8.75, 31.67) | 1.01 (0.75, 1.33) | 3.10 (1.15, 7.10) | 8.95 (7.02, 11.55) |
| 120 | 12.50 (8.24, 39.82) | 0.87 (0.70, 1.37) | 2.20 (0.80, 4.05) | 6.50 (5.55, 9.12) |
| 180 | 17.10 (6.57, 288.05) | 0.85 (0.61, 1.50) | 2.85 (1.92, 5.35) | 4.95 (3.75, 7.42) |
| Maximum | 23.40 (11.95, 52.55)* | 1.43 (1.04, 1.73) | 4.45 (2.20, 9.85) | 9.25 (7.85,11.72) |
Table 3 Changes in levels of copeptin, growth hormone and glucose during the glucagon stimulation test
| Time/min | C(Copeptin)/(pg/mL) | Copeptin fold change | C(GH)/(ng/mL) | C(Glucose)/(mmol/L) |
|---|---|---|---|---|
| 0 | 11.90 (8.80, 21.40) | \ | 2.05 (1.32, 5.72) | 5.25 (4.82, 5.77) |
| 30 | 16.95 (9.05, 29.80) | 1.09 (0.80, 1.47) | 2.35 (0.70, 5.05) | 8.75 (7.72, 10.32) |
| 60 | 12.00 (8.75, 31.67) | 1.01 (0.75, 1.33) | 3.10 (1.15, 7.10) | 8.95 (7.02, 11.55) |
| 120 | 12.50 (8.24, 39.82) | 0.87 (0.70, 1.37) | 2.20 (0.80, 4.05) | 6.50 (5.55, 9.12) |
| 180 | 17.10 (6.57, 288.05) | 0.85 (0.61, 1.50) | 2.85 (1.92, 5.35) | 4.95 (3.75, 7.42) |
| Maximum | 23.40 (11.95, 52.55)* | 1.43 (1.04, 1.73) | 4.45 (2.20, 9.85) | 9.25 (7.85,11.72) |
| Time/h | C(Copeptin)/(pg/mL) | Copeptin fold change | C(GH)/(ng/mL) |
|---|---|---|---|
| 0 | 20.50 (12.90, 72.90) | \ | 6.80 (4.60, 24.40) |
| 2 | 12.10 (7.24, 31.50)* | 0.70 (0.43, 0.92) | 1.90 (0.50, 4.10) |
| 4 | 16.70 (14.50, 63.30) | 0.87 (0.75, 1.09) | 2.50 (0.40, 3.80) |
| 6 | 18.10 (5.85, 58.80) | 0.81 (0.47, 0.88) | 3.30 (0.80, 3.90) |
| 8 | 11.30 (6.19, 40.30)* | 0.57 (0.30, 0.76) | 3.40 (0.60, 5.00) |
| Minimum | 6.19 (5.35, 31.50)* | 0.43 (0.30, 0.58) | 1.90 (0.40, 3.30) |
Table 4 Changes in levels of copeptin and growth hormone during the Octreotide tolerance test
| Time/h | C(Copeptin)/(pg/mL) | Copeptin fold change | C(GH)/(ng/mL) |
|---|---|---|---|
| 0 | 20.50 (12.90, 72.90) | \ | 6.80 (4.60, 24.40) |
| 2 | 12.10 (7.24, 31.50)* | 0.70 (0.43, 0.92) | 1.90 (0.50, 4.10) |
| 4 | 16.70 (14.50, 63.30) | 0.87 (0.75, 1.09) | 2.50 (0.40, 3.80) |
| 6 | 18.10 (5.85, 58.80) | 0.81 (0.47, 0.88) | 3.30 (0.80, 3.90) |
| 8 | 11.30 (6.19, 40.30)* | 0.57 (0.30, 0.76) | 3.40 (0.60, 5.00) |
| Minimum | 6.19 (5.35, 31.50)* | 0.43 (0.30, 0.58) | 1.90 (0.40, 3.30) |
Fig. 1 Correlation between the maximum values of growth hormone (GH) and copeptin in the (a) levodopa stimulation test (n=28), (b) insulin tolerance test (n=7), (c) glucagon stimulation test (n=20), and (d) octreotide tolerance test (n=7)
Fig. 2 Correlation between the fold change of GH and copeptin in the (a) levodopa stimulation test (n=28), (b) insulin tolerance test (n=7), (c) glucagon stimulation test (n=20), and (d) octreotide tolerance test (n=7)
Fig. 3 Correlation between the peak time of GH and copeptin in the (a) levodopa stimulation test (n=28), (b) insulin tolerance test (n=7), (c) glucagon stimulation test (n=20), and (d) octreotide tolerance test (n=7)
| No. | Sex | Age | C(Copeptin)/(pg/mL) | C(GH)/(ng/mL) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 min | 30 min | 60 min | 90 min | 120 min | 0 min | 30 min | 60 min | 90 min | 120 min | |||
| 1 | F | 61 | 0 | 1.91 | 1.55 | 3.67 | 3.43 | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 |
| 2 | M | 42 | 7.07 | 30.5 | 17.9 | 13 | 14 | 0.3 | 0.2 | 0.2 | 0.3 | 0.4 |
| 3 | F | 10 | 8.91 | 12.7 | 9.65 | 12.8 | 17.1 | 0.1 | 0.1 | 0.2 | 0.3 | 0.1 |
| 4 | M | 13 | 2.69 | 8.19 | 7.08 | 10.6 | 8.16 | 0.1 | 1.8 | 1.3 | 0.4 | 0.9 |
Table 5 Clinical features of patients with arginine vasopressin deficiency
| No. | Sex | Age | C(Copeptin)/(pg/mL) | C(GH)/(ng/mL) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 min | 30 min | 60 min | 90 min | 120 min | 0 min | 30 min | 60 min | 90 min | 120 min | |||
| 1 | F | 61 | 0 | 1.91 | 1.55 | 3.67 | 3.43 | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 |
| 2 | M | 42 | 7.07 | 30.5 | 17.9 | 13 | 14 | 0.3 | 0.2 | 0.2 | 0.3 | 0.4 |
| 3 | F | 10 | 8.91 | 12.7 | 9.65 | 12.8 | 17.1 | 0.1 | 0.1 | 0.2 | 0.3 | 0.1 |
| 4 | M | 13 | 2.69 | 8.19 | 7.08 | 10.6 | 8.16 | 0.1 | 1.8 | 1.3 | 0.4 | 0.9 |
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