Cerebrospinal Fluid Amino Acid Reference Intervals
|
Analyte |
0−30 d (μmol/L) |
31 d−11 m (μmol/L) |
1 y−17 y (μmol/L) |
>17 y (μmol/L) |
|---|---|---|---|---|
|
Alanine (α-alanine) |
16.7−82.9 |
17.2−96.0 |
15.6−91.1 |
13.2−132.3 |
|
β-Alanine |
0.0−1.1 |
0.0−1.2 |
0.0−1.2 |
0.0−2.7 |
|
γ-Aminobutyric acid (GABA) |
0.0−2.1 |
0.0−5.7 |
0.0−6.2 |
0.0−4.3 |
|
Arginine |
4.5−50.3 |
8.4−56.3 |
8.8−51.9 |
9.2−54.7 |
|
Asparagine |
1.4−26.5 |
3.4−22.8 |
2.9−21.9 |
1.7−26.9 |
|
Aspartic acid |
0.0−17.6 |
0.0−13.3 |
0.0−12.7 |
0.0−14.6 |
|
Citrulline |
1.0−12.3 |
1.0−12.0 |
0.9−10.4 |
0.7−11.1 |
|
Cystine |
0.0−4.3 |
0.0−5.2 |
0.0−4.8 |
0.0−13.0 |
|
Glutamic acid |
1.3−61.3 |
0.0−58.4 |
0.0−104.0 |
0.0−84.0 |
|
Glutamine |
80.7−1247.3 |
110.8−788.3 |
111.5−846.7 |
131.1−660.1 |
|
Glycine |
2.7−44.5 |
2.4−39.7 |
2.3−34.1 |
2.3−72.7 |
|
Histidine |
6.9−61.2 |
7.3−42.4 |
7.5−39.0 |
6.0−38.1 |
|
Isoleucine |
2.7−26.4 |
2.9−19.7 |
2.3−19.1 |
1.8−26.3 |
|
Leucine |
6.9−57.3 |
7.0−37.5 |
6.6−38.1 |
5.0−60.7 |
|
Lysine |
10.7−71.8 |
11.2−60.7 |
10.3−57.4 |
11.5−84.9 |
|
Methionine |
1.4−20.4 |
1.3−14.7 |
1.2−13.5 |
1.3−14.2 |
|
Ornithine |
1.7−30.3 |
2.5−33.0 |
1.9−30.2 |
1.9−23.6 |
|
Phenylalanine |
6.1−55.7 |
5.5−34.9 |
5.7−36.0 |
4.0−46.4 |
|
Serine |
20.0−130.5 |
22.3−114.4 |
17.5−110.3 |
10.4−57.8 |
|
Taurine |
3.5−42.9 |
3.9−34.1 |
3.1−31.2 |
2.5−30.2 |
|
Threonine |
17.2−186.9 |
14.3−128.9 |
11.5−120.2 |
13.2−90.8 |
|
Tyrosine |
5.8−64.8 |
5.3−46.6 |
4.8−42.9 |
3.6−38.4 |
|
Valine |
10.5−67.6 |
10.3−55.3 |
8.7−53.3 |
6.8−87.2 |