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249 results

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Page 1
Vitamin B12 absorption and malabsorption.
Guéant JL, Guéant-Rodriguez RM, Alpers DH. Guéant JL, et al. Vitam Horm. 2022;119:241-274. doi: 10.1016/bs.vh.2022.01.016. Epub 2022 Mar 1. Vitam Horm. 2022. PMID: 35337622 Review.
This review explores the physiology of vitamin B12 absorption and the mechanisms and diseases that produce malabsorption. In the stomach, B12 is released from food carrier proteins and binds to HC. ...Despite its high prevalence in the general population and in the elderly …
This review explores the physiology of vitamin B12 absorption and the mechanisms and diseases that produce malabsorption. In the stom …
Vitamin B12 deficiency.
Oh R, Brown DL. Oh R, et al. Am Fam Physician. 2003 Mar 1;67(5):979-86. Am Fam Physician. 2003. PMID: 12643357 Free article. Review.
A more sensitive method of screening for vitamin B12 deficiency is measurement of serum methylmalonic acid and homocysteine levels, which are increased early in vitamin B12 deficiency. Use of the Schilling test for detection of pernicious anemia has been supplanted …
A more sensitive method of screening for vitamin B12 deficiency is measurement of serum methylmalonic acid and homocysteine levels, which ar …
Schilling and protein-bound cobalamin absorption tests are poor instruments for diagnosing cobalamin malabsorption.
Lindgren A, Bagge E, Cederblad A, Nilsson O, Persson H, Kilander AF. Lindgren A, et al. J Intern Med. 1997 Jun;241(6):477-84. doi: 10.1111/j.1365-2796.1997.tb00005.x. J Intern Med. 1997. PMID: 10497623 Free article.
OBJECTIVES: To assess the advantage of a protein-bound cobalamin absorption test (PBAT) over the Schilling test in patients with suspected cobalamin (vitamin B12) malabsorption. ...About 1/3 of the patients with gastric body atrophy and n …
OBJECTIVES: To assess the advantage of a protein-bound cobalamin absorption test (PBAT) over the Schilling te …
Pernicious anemia revisited.
Pruthi RK, Tefferi A. Pruthi RK, et al. Mayo Clin Proc. 1994 Feb;69(2):144-50. doi: 10.1016/s0025-6196(12)61041-6. Mayo Clin Proc. 1994. PMID: 8309266 Review.
Hematologic variables may be normal in patients with cobalamin (Cbl) deficiency. Because of the difficulties in diagnosing Cbl deficiency, alternatives to measuring Cbl have been sought. Determining the urinary methylmalonic acid level is a less invasive, more practical, a …
Hematologic variables may be normal in patients with cobalamin (Cbl) deficiency. Because of the difficulties in diagnosing Cbl defici …
Schilling test of vitamin B12 absorption.
[No authors listed] [No authors listed] Br Med J. 1969 Feb 1;1(5639):300-1. Br Med J. 1969. PMID: 5762651 Free PMC article. No abstract available.
JUVENILE PERNICIOUS ANEMIA.
SPURLING CL, SACKS MS, JIJI RM. SPURLING CL, et al. N Engl J Med. 1964 Nov 5;271:995-1003. doi: 10.1056/NEJM196411052711907. N Engl J Med. 1964. PMID: 14198065 Review. No abstract available.
Cobalamin absorption determined by the stool spot test. Reliability in patients with uremia or disorders of the ileum.
Hansen PK, Byskov J, Gimsing P, Hippe E, Ladefoged K. Hansen PK, et al. Scand J Gastroenterol. 1986 Apr;21(3):341-7. doi: 10.3109/00365528609003084. Scand J Gastroenterol. 1986. PMID: 3086965
A cobalamin absorption test, the stool spot test (SST), which makes use of radioactive cobalamin and a nonabsorbable isotope, 51Cr-trichloride, has been shown to produce reliable results in patients with pernicious anemia and in healthy controls …
A cobalamin absorption test, the stool spot test (SST), which makes use of radioactive cobalamin and a no …
A new, peroral non-radioactive vitamin B12 absorption test compared with the Schilling test.
Magnus E, Müller C. Magnus E, et al. Eur J Haematol. 1995 Feb;54(2):117-9. doi: 10.1111/j.1600-0609.1995.tb01778.x. Eur J Haematol. 1995. PMID: 7698294
The results of a non-radioactive, peroral absorption test have been compared with the results of the traditional Schilling test in 31 cobalamin-deficient patients. ..."False normal" Schilling test seems to be more common than previ …
The results of a non-radioactive, peroral absorption test have been compared with the results of the traditional Schilling …
Dual isotope Schilling test for measuring absorption of food-bound and free vitamin B12 simultaneously.
Doscherholmen A, Silvis S, McMahon J. Doscherholmen A, et al. Am J Clin Pathol. 1983 Oct;80(4):490-5. doi: 10.1093/ajcp/80.4.490. Am J Clin Pathol. 1983. PMID: 6684880
A prototype food-bound vitamin B12 (food-B12) absorption test has been developed in which 57Co-B12 was incorporated in vitro into egg yolk (yolk-B12) and served to volunteers in 50-g cooked portions together with toast and coffee for breakfast. ...This yolk-58Co-B12 …
A prototype food-bound vitamin B12 (food-B12) absorption test has been developed in which 57Co-B12 was incorporated in vitro i …
Bioavailability of vitamin B12.
Allen LH. Allen LH. Int J Vitam Nutr Res. 2010 Oct;80(4-5):330-5. doi: 10.1024/0300-9831/a000041. Int J Vitam Nutr Res. 2010. PMID: 21462117 Free article. Review.
Several methods have been applied to diagnose vitamin B12 malabsorption, including Schilling s test, which is now used rarely, but these do not quantify percent bioavailability. ...A newer method under development uses a low dose of radioactivity as (14)C-labeled B1 …
Several methods have been applied to diagnose vitamin B12 malabsorption, including Schilling s test, which is now used rarely, …
249 results