Low ferritin causes
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Causes of Low Ferritin Levels
Celiac Disease and Low Ferritin
Celiac disease (CD) is a significant cause of low serum ferritin levels, particularly in patients with restless legs syndrome (RLS). CD is a genetic disorder that impairs iron absorption, leading to iron deficiency. In a study involving four patients with RLS and serum ferritin levels below 25 ng/mL, all were found to have CD confirmed by duodenal biopsy. Treatment with a gluten-free diet improved their RLS symptoms, suggesting that CD should be considered in patients with unexplained low ferritin levels .
Genetic Mutations and Ferritin Deficiency
Mutations in the L-ferritin subunit gene (FTL gene) can lead to low serum ferritin levels. These genetic defects cause conditions such as autosomal dominant and recessive L-ferritin deficiency. For instance, a unique mutation in the FTL gene (c.473T > C; p.Pro158Leu) was identified in two sisters with low serum ferritin but normal other iron parameters. This mutation affects the ferritin's ability to store iron, leading to hypoferritinemia 25.
Iron Deficiency and Restless Legs Syndrome
Low serum ferritin is a known risk factor for RLS. A meta-analysis revealed that patients with RLS who have low ferritin levels are more likely to experience augmentation, a worsening of symptoms due to dopaminergic treatment. Iron supplementation can alleviate RLS symptoms and reduce the risk of augmentation, highlighting the importance of maintaining adequate iron levels in these patients .
Impact of Low Ferritin on Metal Absorption
Low iron stores can influence the absorption and transport of other divalent metals in the body. A study on non-smoking Norwegian women found that those with low ferritin levels had higher blood concentrations of manganese, cobalt, and cadmium. This suggests that low ferritin may affect the body's handling of certain metals, although the exact mechanisms remain complex and not fully understood .
Ferritin and Inflammation
Increased plasma ferritin levels are associated with low-grade inflammation, which can complicate the diagnosis of iron deficiency. However, low ferritin levels are not clearly linked to chronic diffuse telogen hair loss, indicating that ferritin's role in various conditions can be multifaceted and context-dependent 78.
Ferritin in Pregnancy
During pregnancy, low serum ferritin is a reliable indicator of iron deficiency anemia. It is more accurate than other hematological indices in differentiating between iron deficiency and anemia due to infection. This makes serum ferritin a crucial marker for managing anemia in pregnant women .
Conclusion
Low ferritin levels can result from various causes, including celiac disease, genetic mutations, and iron deficiency. These conditions can lead to significant health issues such as restless legs syndrome and altered metal absorption. Understanding the underlying causes of low ferritin is essential for effective diagnosis and treatment, particularly in specific populations like pregnant women and those with genetic predispositions.
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Most relevant research papers on this topic
Celiac disease as a possible cause for low serum ferritin in patients with restless legs syndrome.
Celiac disease may cause low serum ferritin in patients with restless legs syndrome, and diagnosis and treatment of CD may improve their RLS symptoms and identify individuals at risk for long-term complications.
L-Ferritin: One Gene, Five Diseases; from Hereditary Hyperferritinemia to Hypoferritinemia—Report of New Cases
Defects in the L-ferritin gene cause various diseases, including hereditary hyperferritinemia with cataract syndrome and neuroferritinopathy, and accurate diagnosis is crucial for effective treatment.
Association of low serum ferritin levels with augmentation in patients with restless legs syndrome: A systematic review and meta-analysis.
Low serum ferritin levels are associated with restless legs syndrome augmentation, and iron supplements can help relieve symptoms and lower the risk of augmentation.
A unique mutation in the L ferritin coding sequence associated with low serum ferritin level in the presence of normal values of other iron parameters.
This study identified a unique mutation in the FTL gene, causing low serum ferritin levels in individuals with normal iron parameters, suggesting ferritin connects iron but cannot store it.
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