Urinary methylmalonic acid/creattnine ratio: A gold standard test for tissue vitamin B12 deficiency

Journal of the American Geriatrics Society

Volumn 47, Issue 9, 1999, Pages 1158-

  Norman, Eric J ^a  

^a Norman Clinical Laboratory Inc   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CREATININE; CYANOCOBALAMIN; METHYLMALONIC ACID;

AGED; CYANOCOBALAMIN DEFICIENCY; DIAGNOSTIC ACCURACY; DIAGNOSTIC APPROACH ROUTE; DIAGNOSTIC VALUE; HUMAN; LETTER; URINE LEVEL; VITAMIN BLOOD LEVEL;

AGED; CREATININE; HUMANS; METHYLMALONIC ACID; SENSITIVITY AND SPECIFICITY; VETERANS; VITAMIN B 12; VITAMIN B 12 DEFICIENCY;

EID: 0032860897     PISSN: 00028614     EISSN: 15325415     Source Type: Journal    
DOI: 10.1111/j.1532-5415.1999.tb05250.x     Document Type: Letter

References (7)

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2. Norman EJ, Morrison JA,. Screening elderly populations for cobalamin (vitamin B|2) deficiency using the urinary methylmalonic acid assay by gas chro-matography mass spectrometry. Am J Med 1993; 94: 589-594.
3. Norman EJ,. Urinary methylmalonic acid/creatinine ratio defines true tissue cobalamin deficiency. Br J Haematol (letter) 1998; 100: 614-615.
4. Matchar DB, McCrory DC, Millington DS, Feussner JR,. Performance of the serum cobalamin assay for diagnosis of cobalamin deficiency. Am J Med Sci 1994; 308: 276-283.
5. 12from a community population. Blood (abstract) 1998; 92: 22b.
6. Norman EJ, Cronin C,. Cobalamin deficiency. Neurology 1996; 47: 310-311.
7. Crane MG, Register UD, Lulcens RH, Gregory R,. Cobalamin (CBL) studies on two total vegetarian (vegan) families. Vegetarian Nutr Int J 1998; 2/3: 87-92.