scholarly journals Spectroscopic Evaluation of Red Blood Cells of Thalassemia Patients with Confocal Microscopy: A Pilot Study

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 4039
Author(s):  
Laura Rey-Barroso ◽  
Mónica Roldán ◽  
Francisco J. Burgos-Fernández ◽  
Susanna Gassiot ◽  
Anna Ruiz Llobet ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Confocal Microscopy ◽  
Red Blood Cells ◽  
Blood Cells ◽  
Pediatric Patients ◽  
Single Gene ◽  
Public Health Problem ◽  
Major Public Health Problem ◽  
Globin Genes ◽  
Molecular Tests

Hemoglobinopathies represent the most common single-gene defects in the world and pose a major public health problem, particularly in tropical countries, where they occur with high frequency. Diagnosing hemoglobinopathies can sometimes be difficult due to the coexistence of different causes of anemia, such as thalassemia and iron deficiency, and blood transfusions, among other factors, and requires expensive and complex molecular tests. This work explores the possibility of using spectral confocal microscopy as a diagnostic tool for thalassemia in pediatric patients, a disease caused by mutations in the globin genes that result in changes of the globin chains that form hemoglobin—in pediatric patients. Red blood cells (RBCs) from patients with different syndromes of alpha-thalassemia and iron deficiency (including anemia) as well as healthy (control) subjects were analyzed under a Leica TCS SP8 confocal microscope following different image acquisition protocols. We found that diseased RBCs exhibited autofluorescence when excited at 405 nm and their emission was collected in the spectral range from 425 nm to 790 nm. Three experimental descriptors calculated from the mean emission intensities at 502 nm, 579 nm, 628 nm, and 649 nm allowed us to discriminate between diseased and healthy cells. According to the results obtained, spectral confocal microscopy could serve as a tool in the diagnosis of thalassemia.

scholarly journals Zinc Deficiency Is Associated with Anemia Among Children Under 24 Months-of-age in Rural Guatemala (P10-111-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Ana Palacios ◽  
Kristen Hurley ◽  
Silvia De Ponce ◽  
Victor Alfonso ◽  
Nicholas Tilton ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Vitamin B12 ◽  
Maternal Education ◽  
Controlled Trial ◽  
Venous Blood ◽  
Public Health Problem ◽  
York Academy ◽  
Major Public Health Problem ◽  
Micronutrient Deficiencies ◽  
Cross Sectional

Abstract Objectives Anemia is a major public health problem among young children. In addition to iron deficiency, other micronutrient deficiencies have been associated with anemia. The purpose of this study was to identify biomarkers associated with anemia in children <5 years from rural Guatemala. Methods A total of 182 infants (6–24 m) and 207 preschoolers (36–60 m) were recruited from community surveillance to participate in a randomized controlled trial of nutrition and child development. Methods included measured weight, length/height and venous blood draws. Inclusion criteria were length/height-for-age z-score <-1.0 and Hb >7.0 g/dL. Cross-sectional analyses using generalized linear mixed models of baseline data examined associations between anemia (Hb <11.0 g/dL) and micronutrient deficiencies, adjusting for maternal, child and sociodemographic variables. Iron deficiency was defined as low ferritin based on inflammation status, and/or high soluble transferrin receptor, ≥1.97 mg/L. Deficiencies for other parameters were designated as: zinc <65 µg/dL; vitamin B12 < 200 pg/mL; and plasma folate <3 ng/mL or erythrocyte folate <100 ng/mL. Results Prevalence of anemia was 56% in infants and 12% in preschoolers. Among anemic infants/preschoolers, rates of iron, zinc, folate and vitamin B12 deficiencies were 83/75%; 63/18%; 3/4%; and 9/0%, respectively. For infants, the odds of anemia were higher when children were zinc deficient [OR = 3.59;95%CI (1.64–7.85)], after adjusting for community cluster, sex, age, maternal education and household size. No biomarkers were associated with anemia in preschoolers. Conclusions Iron and zinc are common micronutrient deficiencies in children from low- and middle-income countries. These findings suggest that micronutrient deficiencies coexist among children in Guatemala, and that zinc should be considered as part of the prevention strategies to reduce anemia. In preschoolers, no biomarkers were associated with anemia, suggesting that other biological and psychosocial factors could be influencing anemia in this age group. Funding Sources The Mathile Institute for the Advancement of Human Nutrition, Sackler Institute for Nutrition Science of the New York Academy of Sciences.

Age of Red Blood Cells for Transfusion in Critically Ill Pediatric Patients

JAMA ◽  
2019 ◽  
Vol 322 (22) ◽  
pp. 2175 ◽  
Author(s):  
Zoe K. McQuilten ◽  
D. James Cooper
Keyword(s):  
Red Blood Cells ◽  
Critically Ill ◽  
Blood Cells ◽  
Pediatric Patients

Abnormal Distribution of Erythroid Progenitors Populations in Mice Lacking p45 NF-E2.

Blood ◽  
2009 ◽  
Vol 114 (22) ◽  
pp. 1988-1988
Author(s):  
Jadwiga Gasiorek ◽  
Gregory Chevillard ◽  
Zaynab Nouhi ◽  
Volker Blank
Keyword(s):  
Bone Marrow ◽  
Red Blood Cells ◽  
Blood Cells ◽  
Conflicts Of Interest ◽  
Globin Genes ◽  
Erythroid Progenitors ◽  
Erythroid Progenitor ◽  
Adult Mice ◽  
Deficient Mice

Abstract Abstract 1988 Poster Board I-1010 The NF-E2 transcription factor is a heterodimer composed of a large hematopoietic-specific subunit called p45 and widely expressed 18 to 20-kDa small Maf subunits. In MEL (mouse erythroleukemia) cells, a model of erythroid differentiatin, the absence of p45 is inhibiting chemically induced differentiation, including induction of globin genes. In vivo, p45 knockout mice were reported to show splenomegaly, severe thrompocytopenia and mild erythroid abnormalities. Most of the mice die shortly after birth due to haemorrhages. The animals that survive display increased bone, especially in bony sites of hematopoiesis. We confirmed that femurs of p45 deficient mice are filled with bone, thus limiting the space for cells. Hence, we observed a decrease in the number of hematopoietic cells in the bone marrow of 3 months old mice. In order to analyze erythroid progenitor populations we performed flow cytometry using the markers Ter119 and CD71. We found that p45 deficient mice have an increased proportion of early erythroid progenitors (proerythroblasts) and a decreased proportion of late stage differentiated red blood cells (orthochromatic erythroblasts and reticulocytes) in the spleen, when compared to wild-type mice. We showed that the liver of p45 knockout adult mice is also becoming a site of red blood cell production. The use of secondary sites, such as the spleen and liver, suggests stress erythropoiesis, likely compensating for the decreased production of red blood cells in bone marrow. In accordance with those observations, we observed about 2 fold increased levels of erythropoietin in the serum of p45 knockout mice.Overall, our data suggest that p45 NF-E2 is required for proper functioning of the erythroid compartment in vivo. Disclosures: No relevant conflicts of interest to declare.

Reversible Neutropenia Associated with Ampicillin Therapy in Pediatric Patients

1981 ◽  
Vol 15 (10) ◽  
pp. 802-806 ◽  
Author(s):  
Kusum Kumar ◽  
Ashir Kumar
Keyword(s):  
Bone Marrow ◽  
Blood Cell ◽  
Red Blood Cells ◽  
White Blood Cell ◽  
Blood Cells ◽  
Pediatric Patients ◽  
Bone Marrow Examination ◽  
High Dose ◽  
Maturation Arrest ◽  
High Doses

Hematologic abnormalities associated with penicillin compounds are uncommon, and neutropenia associated with ampicillin is reported even less frequently. Neutropenia developed in three pediatric patients after high-dose (150–400 mg/kg) ampicillin therapy over a period of 3 to 12 days. In all cases, the white blood cell and neutrophil counts returned towards normal within 4 to 11 days after discontinuation of the antibiotic. Bone marrow examination revealed a maturation arrest in one and slight shift to the left in the maturation of granulocytic cells in another. Other marrow components were normal. Red blood cells, reticulocytes, platelets, and hemoglobin did not show any abnormal alteration in any of the patients. Physicians administering ampicillin, particularly in high doses, should be alert to the possible development of neutropenia; however, all reported neutropenias have been reversible.

scholarly journals Addressing Female Iron-Deficiency Anaemia in India: Is Vegetarianism the Major Obstacle?

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Anu Rammohan ◽  
Niyi Awofeso ◽  
Marie-Claire Robitaille
Keyword(s):  
Iron Deficiency ◽  
Iron Deficiency Anaemia ◽  
Large Scale ◽  
Public Health Problem ◽  
Cost Effective ◽  
Vegetarian Diet ◽  
Major Public Health Problem ◽  
Daily Consumption ◽  
Indian Women ◽  
Deficiency Anaemia

Objectives. We examined the influence of vegetarian diet on the risk of developing anaemia among Indian women and suggest initiatives for addressing diet-related iron-deficiency anaemia. Methods. We analysed data on diet, social class, and haemoglobin levels from the nationally representative Indian National Family and Health Survey 2005/06 for a sample of 81,301 women aged 15–49 years using logistic regression models. Results. After controlling for individual-level factors and household level socioeconomic characteristics, daily consumption of meat, fish, and eggs was associated with lower odds of being moderately or severely anaemic. Our analysis also revealed that economic characteristics such as being from higher wealth quintiles, being in paid employment, and rural residence reduced the odds of having iron-deficiency anaemia among Indian women. Discussion. As a large proportion of Indians subsist on iron-poor vegetarian diets for religious, economic, and cultural reasons, large-scale iron supplementation and fortification of commonly consumed vegetarian foodstuffs constitute a feasible, culturally appropriate, and cost-effective strategy for addressing this major public health problem. Consumption of cheap iron-rich foodstuffs should be promoted. Effective poverty alleviation and hookworm prevention programs are also important. Large-scale cohort and intervention studies are urgently required to further define the influence of vegetarianism on iron deficiency anaemia in India.

scholarly journals Occurrence of anemia among the people of Gurugram, Haryana: a cross sectional study

2019 ◽  
Vol 9 (1) ◽  
pp. 202-206
Author(s):  
Ashok Kumar Sah ◽  
Rajesh Prasad Jayaswal
Keyword(s):  
Iron Deficiency ◽  
Blood Cell ◽  
Red Blood Cells ◽  
Red Blood Cell ◽  
Blood Cells ◽  
Peripheral Blood Smear ◽  
Nutritional Deficiencies ◽  
P Value ◽  
Inherited Disorders ◽  
Cross Sectional

Anemia is considered a condition, not a disease in which numbers of red blood cells (RBCs) are insufficient to meet the body’s metabolical and physiological needs for oxygen. Anemia may also develop due to nutritional deficiencies such as iron, vitamin B12, folic acid, and vitamin A; moderate and severe inflammation; parasitic infestation; and acquired or inherited disorders that affect hemoglobin synthesis, red blood cell development or red blood cell endurance. This proposed work depicts the distribution of different morphological types of anemia on people of Gurugram, Haryana. All the samples were analyzed for CBC and peripheral blood smear by using Sysmax (three parts) hematology analyzer and microscopy.  In the present study, 300 patients in 6 months study period were included to diagnose anemia. Only 166 cases were positive. Out of 166 cases, 85 (51.2%) were female and 81 (48.8%) were male. The highest number of participants showed RBCs count in the range of 4.5-5.5 million/mm3, 24 (14.5%) with P value 0.000. Most of the cases that we revealed were having hypochromic red cells along with morphological variation in RBCs which may be due to iron deficiency. The further confirmatory analysis may be required in order to know the detail classification of anemia. Keywords: Anemia, Hemoglobin, Iron Deficiency, Hypochromic, Red Blood Cells

scholarly journals A Life Course Approach to the Prevention of Iron Deficiency Anemia in Indonesia

Nutrients ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 277
Author(s):  
Ali Sungkar ◽  
Saptawati Bardosono ◽  
Rima Irwinda ◽  
Nurul R. M. Manikam ◽  
Rini Sekartini ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Iron Deficiency Anemia ◽  
Life Stage ◽  
Public Health Problem ◽  
Nutritional Intervention ◽  
Deficiency Anemia ◽  
Clinical Psychologist ◽  
Major Public Health Problem ◽  
Nutritional Interventions ◽  
Long Term Impact

Iron deficiency anemia (IDA) has a long-term impact on each life stage and remains worldwide a major public health problem. Eleven experts were invited to participate in a virtual meeting to discuss the present situation and the available intervention to prevent iron deficiency anemia in Indonesia. The experts consisted of obstetric gynecologists, pediatricians, nutritionists, midwives, a clinical psychologist, and an education expert. Existing interventions focus attention on preconception and early childhood stages. Considering the inter-generational effects of IDA, we call attention to expanding strategies to all life stages through integrating political, educational, and nutritional interventions. The experts agreed that health education and nutritional intervention should be started since adolescence. Further research to explore the effectiveness of these interventions would be important for many regions in the world. The outcome of this Indonesian consensus is applicable worldwide.

scholarly journals Urinary schistosomiasis and iron deficiency anemia among Malian school children

2009 ◽  
Vol 9 (30) ◽  
pp. 1845-1858
Author(s):  
Mohamed Ayoya ◽  
◽  
KM Koné ◽  
AK Traoré ◽  
Keyword(s):  
Iron Deficiency ◽  
Iron Deficiency Anemia ◽  
School Children ◽  
Schistosoma Haematobium ◽  
Public Health Problem ◽  
Capital City ◽  
Deficiency Anemia ◽  
Sample Population ◽  
Major Public Health Problem ◽  
Urinary Schistosomiasis

Anemia continues to be a major public health problem in many countries. The prevalence and intensity of urinary schistosomiasis, which contributes to anemia, often peak at school age adding to that age group’s nutrition and disease burdens. However, unlike malaria and hookworm infections, little is known on the role of urinary schistosomiasis in iron deficiency anemia. The objective of this study was to assess the prevalence of iron deficiency anemia and the effect of iron supplementation on hemoglobin (Hb) and serum ferritin (SF) levels among school children infected with Schistosoma haematobium in Bamako, the capital city of Mali. A total of 150 anemic school children between 7 and 12 years were randomly assigned to receive either 40mg/kg of praziquantel or 40mg/kg of praziquantel (P) + daily 66 mg of iron (Fe), five days a week for three months. Hb and SF were measured at baseline and at 6 and 12 weeks of the intervention. Only children who had complete Hb and SF data at each stage of the trial were included in the statistical analyses (n = 74 in the P+Fe group; n = 66 in the P group). At baseline, mean Hb (g/dl) was 10.53±0.93 in the P group and 10.47±1.17 in the Fe+P group; mean SF (µg/l) was 34.39±37.58 in the P group and 29.82±23.34 in the Fe+P group, and the prevalence of iron deficiency was 17.2%. At 6 and 12 weeks of the intervention, there was an important reduction in anemia and in iron deficiency in both treatment groups. Mean Hb (g/dl) was higher in the Fe+P group (11.63±0.88 and 11.55±0.94) than in the P group (11.14±0.98 and 10.84±0.86) at 6 and 12 weeks, respectively. Mean SF (µg/l) was also higher in the P+Fe group (74.26±40 and 100.29±53.92) than in the P group(40.65±35.63 and 40.70±29.57) at 6 and 12 weeks, respectively. In these Schistosoma haematobium infected children, iron deficiency was prevalent and treatments with P alone or in combination with Fe supplementation were able to increase hemoglobin and iron stores. Neither P nor P+Fe by alone completely reversed anemia in this sample population.

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