Vitamin B12 deficiency

Vitamin B12 deficiency is a metabolic state characterized by inadequate systemic stores of cobalamin, essential for cellular DNA synthesis, erythrocyte maturation, and myelin maintenance

Vitamin B12 deficiency is a metabolic state characterized by inadequate systemic stores of cobalamin, essential for cellular DNA synthesis, erythrocyte maturation, and myelin maintenance The condition primarily impacts the hematologic and nervous systems across various demographics, particularly older adults, individuals with pernicious anemia or gastrointestinal malabsorption, and strict vegans It is clinically defined by impaired conversion of homocysteine to methionine and methylmalonyl-CoA t...

The condition primarily impacts the hematologic and nervous systems across various demographics, particularly older adults, individuals with pernicious anemia or gastrointestinal malabsorption, and strict vegans It is clinically defined by impaired conversion of homocysteine to methionine and methylmalonyl-CoA to succinyl-CoA, which leads to megaloblastic macrocytic anemia, hypersegmented neutrophils, elevated serum methylmalonic acid levels, and progressive neuropsychiatric manifestations such ...

The condition primarily impacts the hematologic and nervous systems across various demographics, particularly older adults, individuals with pernicious anemia or gastrointestinal malabsorption, and strict vegans It is clinically defined by impaired conversion of homocysteine to methionine and methylmalonyl-CoA to succinyl-CoA, which leads to megaloblastic macrocytic anemia, hypersegmented neutrophils, elevated serum methylmalonic acid levels, and progressive neuropsychiatric manifestations such ...

It is clinically defined by impaired conversion of homocysteine to methionine and methylmalonyl-CoA to succinyl-CoA, which leads to megaloblastic macrocytic anemia, hypersegmented neutrophils, elevated serum methylmalonic acid levels, and progressive neuropsychiatric manifestations such as peripheral neuropathy, ataxia, and cognitive decline