The reticulocyte count is tied more to the rate of hemolysis than to Hb levels. so a higher Hb won't necessarily lead to a drop in reticulocyte count. Hemolysis is fairly normal in thalassemia and the rate can be affected by other factors sch as recent illness. Also, the normal reticulocyte count for children can be higher than that for adults with a range up to 4, so 8 doesn't seem quite as bad as it sounds. Why hemolysis takes place is a big question and research has shown that much of this actually takes place in the bone marrow and may be related to the extra alpha globin chains that exist in beta thal. It may in fact have little to do with functions of the liver and spleen in this case. The thing to remember in this case is that the Hb has gone up, which means it is effective erythropoiesis and not the ineffective type which leads to more and more expansion of the bone marrow. I don't think these reported counts are anything of alarm and may well be temporary. And yes, the genes do play some role in this alpha/beta imbalance, but more research is needed and is taking place to explain why hemolysis takes place in the bone marrow, killing the young erythrocytes.
In Prat's case, the higher HB will somewhat regulate the bone marrow activity. Even if it is high, it is not being stimulated by low hemoglobin levels, but by hemolysis, which is seen with the higher bilirubin level. While suppressing the bone marrow through transfusions is the goal with thal major, it is not the goal with non-transfusing intermedias, who need this activity to maintain an Hb high enough to live without transfusion. Hydroxyurea will cause some mild suppression of bone marrow at the levels used with thal but this is countered by its induction of fetal hemoglobin. This is actually why there is no clear cut protocol for determining whether transfusions are necessary in intermedia. A judgment is made weighing the amount of expansion against the hazards of transfusion (mainly iron overload) and why it becomes so necessary to accurately measure the iron load in the organs of non-transfusing intermedias. If it is shown that there is significant iron overload even without transfusions, then the reason to not transfuse vanishes even without other factors being present. Intermedias should pay special attention to avoiding iron rich foods because of this.
I also want to mention this very enlightening page, which really modifies how liver function tests should be seen. Higher SGPT can be expected in non-whites, so the "normal" levels we are told may not really be accurate for people of non-western lineage.
http://www.aafp.org/afp/990415ap/2223.htmlSpecial Considerations in Interpreting Liver Function Tests
Mildly elevated ALT level (less than 1.5 times normal) ALT value could be normal for gender, ethnicity or body mass index.
When we see rates around or slightly higher than the high end of normal, it is no cause for concern as many factors play a role. Something else of real note in this fantastic article is that it is the gallbladder that is often responsible for high LFTs and misdiagnosis of hepatitis may result. So, considering what our dear Umair has been through lately, I would suggest a gallbladder exam to see if this may be the reason for the ongoing stomach problems.
This article has great info and explains why we see certain levels in liver function tests. I highly recommend reading and keeping this article.