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  • Title: Anemia, hematinic deficiencies, hyperhomocysteinemia, and gastric parietal cell antibody positivity in atrophic glossitis patients with vitamin B12 deficiency.
    Author: Wu YC, Wu YH, Chang JY, Wang YP, Kuo YS, Sun A.
    Journal: J Formos Med Assoc; 2020 Mar; 119(3):720-727. PubMed ID: 31630933.
    Abstract:
    BACKGROUND/PURPOSE: Our previous study found that 56 of 1064 atrophic glossitis (AG) patients have vitamin B12 deficiency. This study assessed whether the AG patients with vitamin B12 deficiency (B12D/AG patients) had significantly higher frequencies of anemia, hematinic deficiencies, hyperhomocysteinemia, and serum gastric parietal cell antibody (GPCA) positivity than healthy control subjects. METHODS: The blood hemoglobin (Hb) and serum iron, vitamin B12, folic acid, homocysteine, and GPCA levels in 56 B12D/AG patients and 532 healthy control subjects were measured and compared. RESULTS: We found that 56 B12D/AG patients had significantly lower mean blood Hb and serum iron levels as well as significantly higher mean corpuscular volume (MCV) and mean serum homocysteine level than healthy control subjects (all P-values < 0.05). Moreover, 56 B12D/AG patients had significantly higher frequencies of macrocytosis (53.6%), blood Hb (64.3%), iron (26.8%), and folic acid (3.6%) deficiencies, hyperhomocysteinemia (89.3%), and serum GPCA positivity (55.4%) than 532 healthy control subjects (all P-values < 0.005). In addition, of 36 anemic B12D/AG patients, 22 (61.1%) had pernicious anemia (PA), 6 (16.7%) had macrocytic anemia other than PA, 4 (11.1%) had normocytic anemia, 3 (8.3%) had iron deficiency anemia (IDA), and one (2.8%) had microcytic anemia other than IDA and thalassemia trait-induced anemia. CONCLUSION: We conclude that B12D/AG patients have significantly higher frequencies of macrocytosis, blood Hb, iron, and folic acid deficiencies, hyperhomocysteinemia, and serum GPCA positivity than healthy control subjects. PA is the most common type of anemia in our B12D/AG patients.
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