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Why Women with Sickle Cell Anemia Experience Milder Symptoms: Key to More Effective Treatments


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Women with Sickle Cell Anemia May Hold the Key to Better Treatments

People with sickle cell anemia, a group of disorders characterized by irregularly shaped and hardened red blood cells, often experience milder symptoms. Researchers at King’s College London and Muhimbili University in Tanzania have found that this difference in symptom severity between men and women could be crucial in developing more effective treatments.

An Abnormality in Red Blood Cells

Sickle cell anemia is a condition where red blood cells contain an abnormal version of hemoglobin, the red pigment responsible for carrying oxygen throughout the body. These irregularly shaped and hardened cells have a shorter lifespan and are more likely to block blood vessels, leading to damage and inflammation.

The Impact of F Cells

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One positive aspect of sickle cell anemia is that patients with higher levels of F cells, a type of red blood cell containing immature fetal hemoglobin, tend to experience milder symptoms. Normally, fetal hemoglobin is present in red blood cells during fetal development but disappears in adulthood. However, some individuals with sickle cell anemia have higher levels of F cells, which also have a longer lifespan in the bloodstream compared to the sickle-shaped red blood cells.

The Role of Biological Sex

Researchers discovered that female patients with sickle cell anemia have higher levels of F cells in their blood. They compared B cell production and changes in both men and women with the condition and found that women had significantly higher levels of B cells. Additionally, the bone marrow of women contained more immature B cells, where red blood cells are formed. This suggests that the higher levels of F cells in women may be due to their increased production in the female bone marrow and their better survival rate in the female bloodstream.

Implications for Treatment

Based on these findings, researchers concluded that new treatments should focus on stimulating the growth of fetal hemoglobin in sickle cell anemia patients. By understanding the underlying causes of the differences between sexes, scientists hope to develop drugs that can improve symptoms and overall outcomes for individuals with sickle cell anemia.

Source: Metro

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