Clinical studies in alcoholic sideroblastosis

Area of Science:

• Hematology
• Nutritional Biochemistry
• Toxicology

Background:

• Alcoholism is frequently associated with hematological abnormalities.
• Nutritional deficiencies, particularly of B vitamins, are common in alcoholics.
• Ring sideroblasts and megaloblastic changes in bone marrow are observed in various conditions.

Purpose of the Study:

• To investigate the incidence and characteristics of ring sideroblastic and megaloblastic changes in the bone marrow of alcoholics.
• To explore the correlation between blood alcohol levels, serum pyridoxal-5-phosphate (PLP), and these bone marrow abnormalities.
• To determine the role of malnutrition and specific vitamin deficiencies in the development of these changes.

Main Methods:

• Comparative study of chronically ill, malnourished alcoholics and well-nourished alcoholics without other medical conditions.
• Assessment of bone marrow morphology for ring sideroblasts and megaloblastic changes.
• Measurement of blood alcohol levels and serum pyridoxal-5-phosphate (PLP).

Main Results:

• No clear correlation was found between blood alcohol level and serum PLP or ring sideroblast incidence.
• Ring sideroblasts were associated with pyridoxine dietary restriction and folic acid-deficient megaloblastosis.
• The severity of marrow megaloblastic change correlated with the number of sideroblasts.
• Low serum PLP levels were common in chronically ill alcoholics with ring sideroblasts, but also present without this marrow abnormality.

Conclusions:

• Dietary deficiencies in pyridoxine and folic acid are implicated in the development of ring sideroblasts and megaloblastosis in alcoholics.
• Low serum PLP is not a definitive marker for the presence of marrow ring sideroblasts in alcoholics.
• Malnutrition significantly contributes to the observed hematological changes in chronic alcoholism.