Abstract | BACKGROUND: OBJECTIVE: METHODS: This open-label, prospective study was conducted at StrasbourgUniversity Hospital, Strasbourg, France. Patients aged ≥18 years with well-documented cobalamin deficiency related to pernicious anemia were enrolled. Patients received crystalline cyanocobalamin 1000 μg QD PO ( capsule) for at least 3 months. Serum cobalamin, folate, iron, and homocysteine concentrations were measured, and a complete blood count was obtained, before (month 0; baseline) and after treatment. RESULTS: Ten patients (7 women, 3 men; mean [SD] age, 72.1 [15.5] years) entered the study. After 3 months of treatment, serum cobalamin concentration increased in all 9 patients in whom it was measured (mean [SD] increase, 117.4 [30.8] pg/mL; P < 0.001 vs baseline). Serum cobalamin concentrations were normalized (>200 pg/mL) in 6 patients. The serum cobalamin concentration was unavailable in 1 patient because of technical problems. Eight patients had increased hemoglobin concentrations (mean [SD] increase, 2.5 [2.4] g/dL; P < 0.01 vs baseline). All 10 patients had decreased mean erythrocyte corpuscular volumes (mean [SD] decrease, 10.4 [6.2] fL; P < 0.003 vs baseline). Four patients received concomitant blood transfusions or folate and iron supplementation. Three patients experienced clinical improvement in paresthesia, reflex abolition, or combined medullary sclerosis (each, 1 patient). CONCLUSION:
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Authors | Emmanuel Andrès, Noureddine Henoun Loukili, Esther Noel, Frédéric Maloisel, Stéphane Vinzio, Georges Kaltenbach, Florence Caro-Sampara, Jean-Frédéric Blicklé |
Journal | Current therapeutic research, clinical and experimental
(Curr Ther Res Clin Exp)
Vol. 66
Issue 1
Pg. 13-22
(Jan 2005)
ISSN: 0011-393X [Print] United States |
PMID | 24672108
(Publication Type: Journal Article)
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