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Query: UMLS:C0240066 (iron deficiency)
 7,156 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

45 consecutive patients with chronic alcohol abuse up to the day before admission were examined to determine to what extent the bone marrow smear can be used to detect alcohol abuse and to monitor abstinence. Bone marrow aspiration was performed within the first three days of admission and repeated an average of two weeks later in 35 patients. Using Prussian Blue staining, disturbances of iron utilization presented the most striking hematologic finding and were detected in 91% (41/45) of subjects. By contrast, both abnormal vacuolization of red and/or white cell precursors (in 38%) and megaloblastic marrow (in 27%) of patients respectively occurred significantly less often (p less than 0.005). However, if iron stores were fully depleted no sideroblasts were detectable. Obviously, iron deficiency limited the development both of normal and pathological sideroblasts. Sideroachrestic disturbances were divided into four degrees of severity according to frequency and types of sideroblasts. 3 pathological types of sideroblasts were differentiated: two forms of abnormal intermediate sideroblasts and ring sideroblasts, representing an increasing degree of sideroachrestic disturbance. The intermediate types were much more common than the ringed forms and therefore claim full attention. Abstinence from alcohol caused a highly significant decrease in sideroachrestic signs, as shown by the sideroblast score (p less than 0.005), which largely returned to normal in the period of examination. On the other hand, no significant decrease in the control value of the sideroblast score was observed in the patients which did not abstain from alcohol.
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PMID:[Cytomorphologic diagnosis of iron utilization disturbance in chronic alcohol abuse]. 376 16

Pica was a surprise finding in 8 cases of severe iron deficiency anaemia of unknown cause and 2 patients with pregnancy-related anaemia who had a mixed picture of iron deficiency and megaloblastic features owing to folic acid deficiency. The pica cases demonstrated an apparently consistent pattern: severe anaemia, young age, normal psychiatric assessment, good nutrition and lack of an overtly disadvantaged background. Pica was significantly absent in other forms of anaemia in a series of 53 subjects. The literature is briefly reviewed to highlight the unanswered questions about this disorder. The cases reported do not furnish any clues to the enigma of pica, but reveal an obscure form of idiopathic iron deficiency anaemia. Pica may be commoner than is thought.
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PMID:Iron deficiency anaemia and pica. 377 86

The bone marrow status of 31 consecutive pregnant women who had been on supplemental oral iron and folic acid since early pregnancy at the University of Benin Teaching Hospital was assessed later in pregnancy to test the efficacy of oral iron and folic acid in preventing iron deficiency and/or megaloblastic anaemia in our community. Only those pregnant patients with haemoglobin genotype AA or AS took part in the study. Nobody was excluded except those with CC or SC. 96.77% (30 out of 31 patients) had iron deficiency with no stainable iron in the bone marrow. 35.4% (11 out of 31 patients) had megaloblastic changes in the bone marrow. 32.2% (10 out of 31 patients) had a combined iron deficiency and megaloblastic anaemia while only one out of 31 patients (3.23%) had megaloblastic anaemia without concurrent iron deficiency. 60.4% (20 out of 31 patients) had iron deficiency alone without concomitant megaloblastic changes in marrow. The bone marrow in all the patients were normal in other respects except with regards to iron-deficiency and/or megaloblastic status. The significance of this high incidence of iron-deficiency and/or megaloblastic anaemia in patients already on routine pre-natal drugs is discussed.
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PMID:Bone marrow status of anaemic pregnant women on supplemental iron and folic acid in a Nigerian community. 403 16

The spectre of methods for the diagnostics and differentiation of haemolytic anaemias, particularly for the establishment of congenital, autoimmune haemolytic, drug-conditioned and other anaemias is treated. The clear delimitation of an iron deficiency from a disturbance of the iron distribution is advantageously to be achieved by iron staining of the bone marrow and by a determination of serum ferritin. The value of the diagnostic methods in megaloblastic anaemia is classified according to newer knowledge, in which case the vitamin-B12-absorption test and the serum level determination of vitamin B12 by no means range in the first place. Long-term culture results of haematopoietic stem cells are particularly evident in the aplastic syndrome of the bone marrow and further haematological diseases concerning the establishment of the intensiveness of proliferation. The classification of the acute leukemias demands conventional as well as cytochemical staining methods; recently, it is essentially improved using monoclonal antibodies. In leukemias cytogenetic investigations are more and more attracted to the estimation of the prognoses. In lymphogranulomatosis among others functional disturbances of the cellular immunity, in the group of the non-Hodgkin-lymphomas haematological, protein-analytic and immunological laboratory investigations are methods supporting the diagnosis. Altogether is to be established that the haematological diagnostics has become more and more perfect, in which case apart from new techniques old approved methods are still further used.
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PMID:[Rational hematologic diagnosis with reference to modern laboratory procedures]. 409 May 58

This study was planned to determine whether iron deficiency in pregnancy predisposed to the development of folate deficiency and also the smallest daily iron supplement that maintained haemoglobin levels in pregnancy.Three groups of women were given oral ferrous fumarate supplying 30, 60, and 120 mg of iron; a fourth group was given 1 g of parenteral iron in early pregnancy followed by oral iron (60 mg); a fifth group received a placebo. Tablets were taken once daily.Oral iron 30 mg once daily maintained haemoglobin levels throughout pregnancy. Women whose marrows lacked demonstrable iron at the 37th week had a significantly higher incidence of megaloblastic haemopoiesis (28.7%) than those with demonstrable iron stores (15.3%); women taking oral iron did not have a lower frequency of megaloblastosis than those given a placebo. We concluded that iron does not have a direct effect on folate status in pregnancy, that the association of iron deficiency and megaloblastic anaemia in pregnancy is the result of poor nutrition, and that there is no cause-and-effect relation between them.
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PMID:Further observations on the relation between iron and folate status in pregnancy. 555 Dec 72

The incidence of megaloblastic anaemia in pregnancy and the puerperium in north Staffordshire has steadily declined as a result of prophylaxis with folic acid. In the presence of advanced folic acid deficiency and with a florid megaloblastic marrow, the anaemia is usually severe, but in many patients the disease is relatively mild and the degree of anaemia is determined more by blood loss or associated iron deficiency than by the megaloblastosis. Microscopic examination of marrow films is still the most reliable method of diagnosis, although estimation of the labile serum folate has produced a 95% correlation with the marrow findings. There are three main factors which operate in the pathogenesis of megaloblastic anaemia in pregnancy and the puerperium. First, the maternal stores of folic acid are used up by the growing foetus, and this process is accelerated in multiple pregnancies, after haemorrhage, or in women with haemolytic anaemia. Secondly, an insufficient intake of folic acid, due to poor diet in pregnancy, plays a part in many cases. The third, and possibly the most important, factor is an absorption defect. Folic acid absorption is usually impaired in established cases, and this can still be demonstrated years later in a majority of patients, when they are neither pregnant nor anaemic. More than 20% of all cases also show abnormal fat absorption. An inherited defect in folic acid absorption may also explain why certain women appear to be constitutionally predisposed to megaloblastic anaemia of pregnancy and the puerperium, as shown by the abnormal blood group distribution in these patients and by the tendency of megaloblastic anaemia to recur not only in subsequent pregnancies, but, as in six of our cases, following other kinds of stress. The significance of commonly associated conditions like pre-eclampsia and infection is still incompletely understood. Although the treatment of megaloblastic anaemia is simple and effective, the main emphasis should be placed on prophylaxis by administering folic acid to all pregnant women.
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PMID:An account of 335 cases of megaloblastic anaemia of pregnancy and the puerperium. 590 77

Macrogranulocytic and/or erythroid megaloblastic bone marrow changes which could not be accurately predicted from the hematologic findings in the blood were present in 25% of 305 mildly to moderately anemic pregnant women attending a public antepartum clinic in Montreal. Iron deficiency was the primary cause of anemia in most instances. Serum folate activity of less than 4.1 ng./ml. and/or serum vitamin B(12) levels of less than 100 pg./ml. were present in 90% of the 77 patients having these bone marrow changes, whereas approximately one-third of 228 patients with normoblastic marrow had these low values. Red cell folate did not correlate as well as serum folate activity with bone marrow changes. After treatment with oral folic acid in the range of 0.2 mg. to 0.8 mg., daily, for seven to 14 days, the megaloblastic and macrogranulocytic changes in patients with low serum folate activity and normal serum vitamin B(12) values disappeared in 15 of 21 patients. Of five women having both low folate and vitamin B(12) values, three failed to respond and two showed only partial improvement after 0.4 mg. of folic acid daily, per os, for 10 days. The average diet of these anemic women was suboptimal in folate and in iron.
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PMID:Nutritional anemia and megaloblastosis in pregnancy. 590 44

Many Asian subjects were seen in London in the early 1970s with megaloblastic anaemia; in a majority of cases, this was dietary in origin. Pernicious anaemia occurs in Asians, but the incidence is probably lower than in Caucasians. Megaloblastic anaemia is now less common in this group, but a population survey in Punjabi females in the late 1970's showed anaemia in 32%, and one or more features of iron deficiency in 76%.
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PMID:Anaemia in Asians in London. 664 76

Glycine uptake by erythrocytes from cases of iron deficiency anemia, megaloblastic anemia, and anemia of chronic renal failure and hypothyroidism has been studied. Concentrative uptake, characteristically observed only in iron deficiency, is dependent on a favorable Na+ gradient and is inhibited by p-chloromercuribenzoate. Transport appears to be mediated by a carrier whose possible relation to iron deficiency is discussed.
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PMID:Glycine uptake by erythrocytes in iron deficiency anemia. 686 Mar 16

In six patients, eight episodes of anemia associated with folic acid or vitamin B12 deficiency were unaccompanied by macrocytosis. Six of the eight episodes of anemia were complicated by illnesses of an inflammatory or infectious nature, two patients had iron deficiency, two appeared to have a thalassemia trait, and one had severe renal failure. In five of the eight episodes, erythropoiesis was not megaloblastic and there was insufficient anisocytosis or poikilocytosis to suggest an underlying vitamin deficiency state. Hypersegmented neutrophils were observed in all episodes, but a neutrophil lobe average of greater than 3.5 lobes per cell was observed only once, and in one patient, less than 5% of the circulating neutrophils were hypersegmented. Giant metamyelocytes, however, were present in the marrow in all of the episodes and provided an important clue to the presence of the vitamin deficiency state.
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PMID:Masked megaloblastic anemia. 713 59


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