Gastric | ||||||||
---|---|---|---|---|---|---|---|---|
Subject No | Age, race, sex | EYCAT (%/24 h) | Schilling test (%/24 h) | Serum cobalamin (pmol/l) | Serum gastrin (ng/l) | MAO (mEq/h) | Pepsin (U/ml) | IF (nmol/l) |
Group I—severe food cobalamin malabsorption | ||||||||
1 | 33/L/F | 0.19 | 12.2 | —1-150 | 1269 | 0 | 135 | 13.9 |
2 | 74/L/M | 0.43 | 17.6 | 223 | 87 | 0 | 80 | 12.0 |
3 | 77/W/M | 0.67 | 11.2 | 1711-151 | 1155 | 0 | 61 | 0.8 |
4 | 58/W/F | 0.01 | 9.9 | 129 | 91 | 5.28 | 551 | 27.4 |
5 | 70/W/M | 0.41 | 15.2 | 109 | 217 | 4.02 | 563 | 37.3 |
6 | 57/B/F | 0.22 | — | 241 | 82 | — | — | 11.71-153 |
Group II—mild food cobalamin malabsorption | ||||||||
7 | 66/W/F | 1.00 | — | 443 | 80 | — | — | — |
8 | 73/W/F | 1.16 | — | 235 | 54 | — | — | — |
9 | 67/B/F | 1.21 | — | 4661-151 | 75 | 2.80 | 649 | 51.2 |
10 | 79/W/M | 1.34/1.69 | — | 117 | 101 | 14.71 | 373 | 74.8 |
11 | 71/W/M | 1.88 | 20.0 | 51 | 92 | — | — | — |
Group III—normal absorption | ||||||||
12 | 44/B/F | 2.62 | — | 347 | 67 | 8.64 | 557 | 25.0 |
13 | 56/W/M | 2.85 | — | 387 | 169 | 2.25 | 43 | 63.8 |
14 | 68/A/M | 3.53 | — | 292 | 45 | 11.44 | 912 | 18.0 |
15 | 81/B/M | 3.87 | 19.5 | 278 | 90 | 7.70 | 869 | 41.9 |
16 | 72/W/M | 4.08 | — | 141 | 55 | 13.91 | 612 | 44.5 |
17 | 69/W/F | 4.38 | — | 273 | 54 | 2.76 | 551 | 81.6 |
18 | 48/W/M | 5.53 | — | 212 | 119 | 2.56 | 551 | 33.1 |
19 | 70/W/M | 8.92 | 26.5 | 134 | 40 | 40.31 | 575 | 52.0 |
Normal | >2 | >8 | >140 | <125 | >5.0 | >220 | >1.3 |
EYCAT, egg yolk cobalamin absorption test; MAO, maximal acid output; IF, intrinsic factor; W, white; B, black; L, Latin American; A, Asian; F, female; M, male.
↵1-150 This subject was referred for study after being treated for low cobalamin level.
↵1-151 Although this subject had a normal cobalamin level, methylmalonic acid and/or homocysteine levels were abnormal.
↵1-153 This normal IF concentration was obtained from a basal gastric juice (the subject refused gastric stimulation with pentagastrin).