Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0162316 (iron deficiency anemia)
 3,806 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Anaemia is the most common haematological complication in patients with malignant diseases. It is found in 60%-90% of cases with multiple myeloma. The pathogenesis of this hypoproliferative, normochromic, normocytic anaemia is complex. Results from clinical studies which evaluate the efficacy of recombinant human erythropoietin (rHuEpo) refer to the possibility that patients with multiple myeloma independently of renal function could have Epo deficiency. Based on this finding, the aim of the study was to evaluate the erythropoietin production in patients with multiple myeloma in order to define clinical conditions of Epo deficiency and thereby enable rational use of this expensive drug. 42 patients with multiple myeloma were examined. The control group consisted of 25 patients with iron deficiency anaemia. 14 healthy volunteers represented the so-called "normal" control. The adequacy of Epo production was estimated from the graphic representation of the linear regression between Epo and haemoglobin (Hb) in the control group, as well as from O/PEpo ratio as a measure of the degree of adequacy of Epo production (O -- observed Epo value, P -- predicted Epo value from the regression equation of the control group). The erythropoietic activity was estimated from the graphic representation of the linear regression between soluble transferin receptors (sTfR) and Hb in the control group, as well as from O/PsTfR ratio, as a measure of the degree of adequacy of erythropoietic activity (O -- observed sTfR value, P -- predicted sTfR value from the regression equation of the control group). Significant inverse correlation between Epo and Hb was found in patients with multiple myeloma but preserved renal function, which was not the case in patients with renal insufficiency. 43% of patients without renal insufficiency and 85% of patients with renal insufficiency had inadequate Epo response to anaemia. In both patient groups (with and without renal insufficiency) instead of the expected inverse relationship between Hb and sTfR as in the control group, a positive correlation was found. 76% of patients had inadequate sTfR response to anaemia. There is a positive correlation between O/PEpo and O/PsTfR which is in favour of Epo driven erythropoiesis. O/PEpo and O/PsTfR in patients with multiple myeloma are significantly lower in comparison to the control group, which also points to the inadequacy of erythropoietin production, respectively erythropoietic activity. In conclusion, the results from this study show unambiguously that anaemia in patients with multiple myeloma appears because of decreased erythropoiesis as a consequence of bone marrow infiltration with malignant plasma cells as well as inadequate Epo production. Most probably, there are two forms of inadequate Epo production: one because of the renal insufficiency and the other that found in patients with anaemia of chronic diseases the mechanism of which is not clear.
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PMID:[Inadequate erythropoietin production (epo) in patients with multiple myeloma]. 1573 35

Interest in assessing iron status in the population of women during their child-bearing age has grown recently both in terms of detecting iron stores and evaluating whether they are sufficient to meet increasing needs during pregnancy. The fact that iron deficiency anaemia often develops in pregnancy indicates that that iron stores and dietary iron are insufficient to requirements and iron supplementation is needed. The aim of the present study was to determine the effect of vitamin, macro and microelement supplementation on iron status of pregnant women and of their newborns. It is shown that serum total iron concentration in the group of women without supplementation decreased in the III trimester to 60% of that observed after 12 weeks of pregnancy (p < 0.0001). In supplemented group the decrease was not statistically significant. Increased value of transferin in III trimester in comparison to the I trimester by 38% (p < 0.0001) and by 55% (p < 0.0001) respectively in non supplemented and supplemented groups were found. It was accompanied by significant increase of total iron-binding capacity (TIBC) (p < 0.0001). In both studied groups the level of ferritin was lower in the III than in the I trimester. In serum of women without supplementation, ferritin concentration decreased by 35% (p < 0.003); whereas in supplemented group it was statistically insignificant. In serum of umbilical cord blood concentration of total iron, transferin and ferritin were similar in newborns of both groups of mothers. The above results suggested that vitamin, macro and microelement supplementation of pregnant women improved iron status in mothers and in their children. It seems that administration Vibovitmama formula can be recommended as a dietary supplement in pregnancy in order to prevent subclinical deficiency of iron.
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PMID:[The effect of vitamin, macro and microelement supplementation on markers of iron status in blood of pregnant women]. 1579 14