Red cell metabolism in iron deficiency anemia

1972 ◽  
Vol 80 (5) ◽  
pp. 774 ◽  
Author(s):  
Lorna G. Macdougall
Blood ◽  
1965 ◽  
Vol 25 (1) ◽  
pp. 73-91 ◽  
Author(s):  
MIGUEL LAYRISSE ◽  
JESÚS LINARES ◽  
MARCEL ROCHE ◽  
Adelina Ojeda ◽  
Alvaro Carstens ◽  
...  

Abstract An excess hemolysis was found in subjects with iron deficiency anemia associated with hookworm infection. Red cell survival, measured with Cr51 and DFP32 in the subjects before deworming, showed a marked disproportion between the decrease of the survival and the amount of daily intestinal blood loss in most cases. Excess of hemolysis was still present after more than 90 per cent of the parasites were removed. Red cell survival became normal after correction of anemia through iron treatment. Excess of hemolysis was also present in noninfected subjects with iron deficiency anemia due to other causes. The reduction in the survival of the erythrocytes from infected subjects transfused into normal recipients shows that the hemolytic process is due to an intrinsic defect of the red cells. The low values of hemoglobinemia and the presence of haptoglobins in the plasma indicate that hemoglobin has not been liberated in excess intravascularly. Finally, the fact that the red cells from an infected patient taken after deworming survived normally in splenectomized recipients indicates that the spleen is probably the principal site of the red cell destruction. The clinical and autopsy findings suggest that splenic function is not pathologically increased, but rather that this organ is acting physiologically at a more rapid rate, "culling" the abnormal circulating red cells and thus leading to a decrease in red cell survival. The studies presented here also indicate that the hookworm infection per se does not induce hemolysis.


2018 ◽  
Vol 9 (2) ◽  
pp. 137-141
Author(s):  
Gazi Sharmin Sultana ◽  
Syed Aminul Haque ◽  
Ayatunnesa ◽  
Md MA Muttalib ◽  
Md Quddusur Rahman

Background: Detection of iron deficiency early during pregnancy is essential for correct management. Red cell distribution width (RDW) is a new routine parameter in fully automated hematology analyzer that can give the idea of early iron deficiency before Hb%. This study was aimed to see the role of red cell distribution width and Hb% in determining early iron deficiency in pregnant women.Methods: In this study 190 pregnant women were included. CBC including Hb% and RDW and iron profile were done. RDW were compared with Hb% in various stages of iron deficiency.Results: RDW was more significant than Hb level in latent iron deficiency when Hb level was normal (p<0.05). In mild and moderate iron deficiency anemia, RDW was increased progressively though Hb level was reduced. In this study RDW had sensitivity 82.3% and specificity 97.4%. Whereas Hb level had sensitivity 56.6% and specificity 90.9% for iron deficiency.Conclusion: Latent iron deficiency without other complicating disease could be screened out early by increased RDW when Hb% was normal.Anwer Khan Modern Medical College Journal Vol. 9, No. 2: Jul 2018, P 137-141


1965 ◽  
Vol 14 (4) ◽  
pp. 605-609 ◽  
Author(s):  
Z. Farid ◽  
A. R. Schulert ◽  
S. Bassily ◽  
J. H. Nichols

1983 ◽  
Vol 64 (2) ◽  
pp. 53P-53P
Author(s):  
J. Vyas ◽  
G. Wetherley-Mein ◽  
A.J. Grimes

1970 ◽  
Vol 37 (3) ◽  
pp. 102-105 ◽  
Author(s):  
GS Sultana ◽  
SA Haque ◽  
T Sultana ◽  
Q Rahman ◽  
ANN Ahmed

Iron deficiency anemia is common problem during pregnancy. Red cell size variation (anisocytosis) is the earliest morphologic changes in iron deficiency anemia. Red cell distribution width is a quantitative measure of red cell size variation and it can give the idea of early iron deficiency before other test to become positive.190 pregnant women were included in this study. Red cell distribution width was compared between iron deficient & non-iron deficient pregnant women. Red cell distribution width also compared with Hb level, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration and peripheral blood film in prelatent iron deficiency, latent iron deficiency, mild and moderate iron deficiency anemia. Red cell distribution width had sensitivity 82.3% and specificity 97.4%. Whereas Hb level, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration and peripheral blood film all had 56.6%, 29.2%, 68.1%, 15% and 38.9% sensitivity but specificity was 90.9%, 98.7%, 83.1%, 96.1% and 98.7% in the detection of iron deficiency. Red cell distribution width appears to be a reliable and useful parameter for detection of iron deficiency during pregnancy. DOI: http://dx.doi.org/10.3329/bmrcb.v37i3.9122 BMRCB 2011; 37(3): 102-105


Author(s):  
Novita Indayanie ◽  
Banundari Rachmawati

Anemia chronic disease is the second common cause after iron deficiency anemia with hemoglobin levels below the referencevalue. The pathogenesis of anemia should be determined for treatment. Hematinics and or erythropoietin are other treatments besidestransfusion. The transfusion is started when Hb≤7g/dL. The PRC transfusion of 4ml/kg could increase Hb level by 1 g/dL, or 1 unit andcould increase 3–5% of hematocrit. The objective of this study was to know the correlation of PRC unit with delta Hb and erythrocytesin anemia of chronic disease. The 60 samples examined were from patients of the Kariadi Hospital Semarang suffering from anemia ofchronic disease and who were transfused with PRC from January up to March 2014. The study subjects comprised 28 men (46.7%) and32 women (53.3%), with a mean age of 47 years. The number of PRC given was between one (1) to four (4) units. The mean delta Hbwas 3.48 and the mean delta erythrocytes was about 1.03 (0.1 to 2.3). There was a significant correlation between PRC units and deltaHb (r:0.856, p:0.000), as well as delta erythrocytes (r:0.716, p:0.000). Based on this study, it can be concluded that PRC units have avery strong correlation with delta Hb and as well as with delta erythrocytes in patients suffering from anemia of chronic disease


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