Friday, 17 January 2014

Article that link Beta-Thalassemia to fertility

Title: Living with Thalassemia


For many years, people assumed that the iron overload is seen in beta thalassemia patients is due to the frequent blood transfusion therapy (can give rise excess amount of iron-containing hemoglobin in the body) alone. However, recent studies have shown that patients with beta-thalassemia intermedia who has not undergo blood transfusion therapy have “higher-than-average” iron stores. For example the rate of iron uptake in the gut were 3 to 4 times higher than normal.

Besides the health problem that iron overload can cause, it can also affect the development of both male and female sex organ which in turn can affect the reproductive capabilities of a person with thalassemia. The article which we have choose to research on is based on the experiences and stories of individuals that has undergo careful interview by a panel of experts but has not been published in a medical journal.

Individuals with thalassemia may experience delayed puberty, due to the deficiency of hormones (testosterone and estrogen) necessary for sexual maturation cause by iron overload. Although many eventually would enter puberty, some do not reach sexual maturity and thus has a complication called “hypogonadism”. For females, those who never begin menses are said to have primary amenorrhea, while those who transiently have menses are said to have secondary amenorrhea. Delayed puberty, hypogonadism and amenorrhea are signs of hormone deficiency and hence may likely cause fertility problem.  For example, most affected males are not able to produce adequate amount of sperms and affected females do not ovulate.

2 comments:

  1. Hi!
    First off, good job with the blog! It's really interesting. :)
    Anyway, I understand from your post that both patients with beta thalassemia who undergoes frequent blood transfusions and those who do not were found to have higher than average iron stores. By any chance do you know if there is a difference in the level of iron between both groups? (I'm also assuming that the high amount of iron is due to autoimmunity. Correct me if I'm wrong?)

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    Replies
    1. Hello!
      Yes, there is a difference in the level of iron storage between both groups. All affected individuals have an increase in iron level. However, those who undergoes frequent blood transfusion will have a even higher level of iron., develops iron-overload and iron-induced oxidative stress.
      Yes, iron overload can also be due to autoimmunity. Autoimmunity cause destruction of Red Blood cells, therefore, the body will produce more Red Blood cells due to homeostasis.

      Thank you!
      - JJ

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