scholarly journals Iron Chelation Reduces DNA Damage in Sickle Cell Anemia

2021 ◽  
Vol 27 ◽  
pp. 107602962110472
Author(s):  
Rawan S. Al-Khateeb ◽  
Hanan S. Althagafy ◽  
Mohammad Zaki ElAssouli ◽  
Dunya A. Nori ◽  
Mohammed AlFattani ◽  
...  
Keyword(s):  
Dna Damage ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Blood Cells ◽  
Hematological Parameters ◽  
Fluorescent Microscopy ◽  
White Blood Cells ◽  
Iron Chelation ◽  
Target Group ◽  
Hemoglobin F

Sickle cell anemia (SCA) is a blood condition that causes severe pain. One of the therapeutic agents used for the treatment of SCA is hydroxyurea, which reduces the episodes of pain but causes DNA damage to white blood cells. The aim of this study was to evaluate the efficacy of the combination of hydroxyurea and iron chelation therapy in relation to the extent of DNA-associated damage. Blood samples were collected from 120 subjects from five groups. Various hematological parameters of the obtained serum were analyzed. The amount of damage caused to their DNA was detected using the comet assay and fluorescent microscopy techniques. The percentage of DNA damage in the group that was subjected to the combination therapy (target group) was 1.32% ± 1.51%, which was significantly lower ( P < .05) than that observed in the group treated with hydroxyurea alone (6.36% ± 2.36%). While the target group showed comparable levels of hemoglobin F and lactate dehydrogenase compared to the group that was treated with hydroxyurea alone, highly significant levels of transferrin receptors and ferritin were observed in the target group. The results of this study revealed that the administration of iron chelation drugs with hydroxyurea may help improve patients’ health and prevent the DNA damage caused to white blood cells due to hydroxyurea. Further studies are needed to better understand the underlying mechanisms that are involved in this process.

Effect of Combination of Hydroxyurea and Iron Chelation Therapy on Leukocyte DNA Damage in Sickle Cell Anemia Patients

2019 ◽  
Author(s):  
Rawan S Al-Khateeb ◽  
Hanan S. Althagafy ◽  
Mohammed Zaki ElAssouli ◽  
Dunya A. Nori ◽  
Mohammed AlFattani ◽  
...  
Keyword(s):  
Dna Damage ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Chelation Therapy ◽  
Iron Chelation ◽  
Iron Chelation Therapy ◽  
Leukocyte Dna Damage

scholarly journals Lipid profile and nutritional status of a pediatric population with sickle cell anemia: differences between gender and association with severity markers

2021 ◽  
Vol 10 (10) ◽  
pp. e344101018934
Author(s):  
Nilcemar Rodrigues Carvalho Cruz ◽  
Thaisa Netto Souza Valente ◽  
Fernanda Oliveira Ferreira ◽  
Leandro Roberto de Macedo ◽  
Andreza da Silva Brito Rocha ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Lactate Dehydrogenase ◽  
Vitamin A ◽  
Body Mass ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Blood Cells ◽  
Pediatric Population ◽  
White Blood Cells ◽  
Apolipoprotein A

Objective: To investigate the associations between nutritional status and lipid profile with biomarkers of hemolysis and inflammation in sickle cell anemia, in addition to considering gender differences. Methods: This cross-sectional study analyzed nutritional, and biochemical data of pediatric patients carrying sickle cell anemia. Results: Vitamin A, apolipoprotein B, total cholesterol, low-density lipoprotein, and non-high-density lipoprotein cholesterol were lower in boys. Hemoglobin was significantly lower, and the white blood cells and lactate dehydrogenase were higher in boys. Body mass index, vitamin A, and triglycerides were associated with hemoglobin levels, while apolipoprotein A-I was associated with white blood cells and total bilirubin. Additionally, body mass index and vitamin A were associated with lactate dehydrogenase. Vitamin A showed significant predictive power in hemoglobin alteration and lactate dehydrogenase, while apolipoprotein A-I was able to predict high white blood cells values and total bilirubin. Conclusion: This study found in a pediatric population with sickle cell anemia that body mass index, vitamin A, triglycerides, and apolipoprotein A-I were associated with biomarkers of hemolysis and inflammation. Boys exhibited the greater nutritional deficit and severity of the disease.

Hematological condition of breeding bulls after a long winter period of operation in the conditions of the Udmurt Republic

2022 ◽  
pp. 67-73
Author(s):  
A. Abilov ◽  
A. Azhmyakov ◽  
I. Novgorodova ◽  
N. Bogolyubova
Keyword(s):  
Red Blood Cells ◽  
Reference Values ◽  
Blood Cells ◽  
Hematological Parameters ◽  
White Blood Cells ◽  
Winter Period ◽  
Black And White ◽  
Significant Difference ◽  
White Breed ◽  
Udmurt Republic

Purpose: to study hematological parameters of blood in bulls-producers of dairy breeds on the day of semen collection in the Udmurt Republic after a long winter period of operation, depending on the breeds, age and place of selection.Materials and methods. The work was performed at the Federal Research Center for Animal Husbandry named after Academy Member L. K. Ernst on the basis of AO "Udmurtplem" of the Udmurt Republic in the period from 2020 to 2021 on dairy bulls (n=20) aged 15-69 months, including a purebred Holstein breed of domestic selection (n=6), a Holstein black-and-white breed of European selection (the Netherlands, n=6), a black-and-white breed with blood transfusion on Holsteins on at the level of 94-98% (n=8). The content of white blood cells, red blood cells, hemoglobin and hematocrit, depending on age and breed, was studied on the ABC VET hematological analyzer on the day of taking the seed.Results. It was found that on average, in 20 bulls aged 15-69 months, the level of white blood cells was at the level of reference values of 8.8±0.25 x 109/l, red blood cells 10.3 x 1012/l, which is 50% more than the reference values. The concentration of hemoglobin is 128.0±2.92 g/l, hematocrit is on average 54.3%, with a norm of 24-46%. Breeding bulls at a reliable level, differing in age, showed that some animals had high indicators for red blood cells of 10.3±0.26 x 102, for hematocrit of 54.3% against 24-46% of reference values. Also, according to hematological indicators, there was a tendency to increase the concentration of hemoglobin and hematocrit in European-bred bulls.Conclusion. The study of the variability in hematological parameters depending on the selection showed that there is no significant difference in leukocytes and all indicators are at the level of reference values, and in erythrocytes more than 50% than the highest indicators. The highest hemoglobin values were at the level of 141-156 g/l instead of 128 g/l according to the highest reference values. Hematocrit also showed high max values in all groups in comparison with the reference values of 59-66% versus 46% in the norm. It is necessary when analyzing hematological blood parameters in addition to the average statistical indicators (M+m) also, monitor the variability (min-max) in order to obtain more objective information.

scholarly journals Hematological and Genetic Predictors of Daytime Hemoglobin Saturation in Tanzanian Children with and without Sickle Cell Anemia

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Sharon E. Cox ◽  
Julie Makani ◽  
Charles R. Newton ◽  
Andrew M. Prentice ◽  
Fenella J. Kirkham
Keyword(s):  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Clinical Chemistry ◽  
Pearson Correlation ◽  
Transferrin Saturation ◽  
Full Blood Count ◽  
Hemoglobin F ◽  
Hemoglobin Saturation ◽  
Highly Correlated ◽  
Glucose 6 Phosphate Dehydrogenase

Low hemoglobin oxygen saturation (SpO2) is common in Sickle Cell Anemia (SCA) and associated with complications including stroke, although determinants remain unknown. We investigated potential hematological, genetic, and nutritional predictors of daytime SpO2 in Tanzanian children with SCA and compared them with non-SCA controls. Steady-state resting pulse oximetry, full blood count, transferrin saturation, and clinical chemistry were measured. Median daytime SpO2 was 97% (IQ range 94–99%) in SCA (N = 458), lower () than non-SCA (median 99%, IQ range 98–100%; N = 394). Within SCA, associations with SpO2 were observed for hematological variables, transferrin saturation, body-mass-index z-score, hemoglobin F (HbF%), genotypes, and hemolytic markers; mean cell hemoglobin (MCH) explained most variability (, Adj ). In non-SCA only age correlated with SpO2. -thalassemia 3.7 deletion highly correlated with decreased MCH (Pearson correlation coefficient 0.60, ). In multivariable models, lower SpO2 correlated with higher MCH (-coefficient 0.32, ) or with decreased copies of -thalassemia 3.7 deletion (-coefficient 1.1, ), and independently in both models with lower HbF% (-coefficient 0.15, ) and Glucose-6-Phosphate Dehydrogenase genotype (-coefficient 1.12, ). This study provides evidence to support the hypothesis that effects on red cell rheology are important in determining SpO2 in children with SCA. Potential mechanisms and implications are discussed.

scholarly journals Elastic property of sickle cell anemia and sickle cell trait red blood cells

2021 ◽  
Vol 26 (09) ◽  
Author(s):  
Endris Muhammed ◽  
James Cooper ◽  
Daniel Devito ◽  
Robert Mushi ◽  
Maria del Pilar Aguinaga ◽  
...  
Keyword(s):  
Elastic Property ◽  
Red Blood Cells ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Blood Cells ◽  
Sickle Cell Trait

scholarly journals In-vivo Antiplasmodial Effect of Dihydroartemisinin-Piperaquine-Nitrofurantoin on Plasmodium berghei- Infected Mice

2021 ◽  
pp. 12-20
Author(s):  
Udeme O. Georgewill ◽  
Festus Azibanigha Joseph ◽  
Elias Adikwu
Keyword(s):  
Plasmodium Berghei ◽  
Blood Cells ◽  
Hematological Parameters ◽  
White Blood Cells ◽  
Positive Control ◽  
Negative Control ◽  
Antiplasmodial Activity ◽  
Significant Difference ◽  
Tract Infections

Nitrofurantoin (NT) used for the treatment of urinary tract infections may have antiplasmodial activity. Dihydroartemisinin-piperaquine (DP) is an artemisinin based combination therapy used for the treatment of malaria. This study evaluated the antiplasmodial effect of dihydroartemisinin-piperaquine-nitrofurantoin (DP-NT) on mice infected with Plasmodium berghei. Adult Swiss albino mice (30-35 g) of both sexes were used. The mice were randomly grouped, inoculated with Plasmodium berghei, and treated orally with DP (1.7/13.7 mg/kg), NT (57.1 mg/kg) and DP-NT (1.71/13.7/ 57.1 mg/kg), respectively using curative, prophylactic and suppressive tests. The negative control was orally treated with normal saline (0.3 mL), while the positive control was orally treated with chloroquine CQ (10mg/kg). After treatment, blood samples were collected and evaluated for percentage parasitemia, inhibitions and hematological parameters. Liver samples were evaluated for histological changes. The mice were observed for mean survival time (MST). Treatment with DP-NT decreased parasitemia levels when compared to individual doses of DP and NT with significant difference observed at p<0.05. DP-NT prolonged MST when compared to individual doses of DP and NT with significant difference observed at p<0.05. The decrease in packed cell volume, red blood cells, hemoglobin and increase in white blood cells in parasitized mice were significantly restored by DP-NT  when compared to individual doses of DP and NT with difference observed at p<0.05. DP-NT eradicated liver Plasmodium parasite.  NT remarkably increased the antiplasmodial activity of DP. DP-NT may be used for the treatment of malaria.

scholarly journals The prevalence of leukocyte abnormalities among Sudanese patients with sickle cell disease

2021 ◽  
Vol 9 (1) ◽  
pp. 262-267
Author(s):  
Tarig Osman Khalafallah Ahmed ◽  
Ekhlas Alrasheid Abu Elfadul ◽  
Ahmed A. Agab Eldour ◽  
Omer Ibrahim Abdallah Mohammed
Keyword(s):  
Sickle Cell Disease ◽  
Cell Volume ◽  
Sickle Cell ◽  
Blood Cells ◽  
White Blood Cells ◽  
Blood Film ◽  
Cell Disease ◽  
Mean Cell Volume ◽  
Blood Disorder ◽  
Age Range

Sickle cell disease (SCD) is an inherited blood disorder that affects red blood cells. The study was conducted in Elobied town during the period May 2011 to September 2011. The aim of this study is to detect the abnormalities of leucocytes among sickle cell anemic patients. 40 sickle cell anemic patients; age range between 8 months to 23 years. Blood sample was taken for all patients and the laboratory investigation were performed using automated estimation for: hemoglobin (Hb), Packed cell volume (PCV), red cell count (RBCs), mean cell volume (MCV), mean cell hemoglobin (MCH), mean cell concentration (MCHC), and total white blood cells, comment on blood film using manual methods. The conclusion of this study there is increase in total white blood cells with shift to left in neutrophil precursor in sickle cell patients with complications ,the most immature cells are band form, myelocytes and metamyelocytes, and there also lymphocytosis and neutrophilia which has been increases in response to infections.

scholarly journals Evaluation of the hemogram of Oryctolagus cuniculus envenomus

2020 ◽  
Vol 13 (2) ◽  
pp. 266-272
Author(s):  
Obou Constantin Okou ◽  
N’guessan Emmanuel Assemian ◽  
Kouadio Bernard Allali ◽  
Guy Childeric Bingo ◽  
Allico Joseph Djaman
Keyword(s):  
Blood Cells ◽  
Oryctolagus Cuniculus ◽  
Hematological Parameters ◽  
White Blood Cells ◽  
Experimental Batch ◽  
Haematological Parameters ◽  
Rabbit Blood ◽  
Hemolysis Test ◽  
Dose Dependent

The overall objective of this study was to evaluate the hemolysing action of Naja nigricollis venom on rabbit blood. To carry out this study, three batches of three rabbits were formed with two control batches and one experimental batch. Each control lot is composed of three rabbits (males or females) while the experimental lot is composed of two males and one female. Each rabbit from the control lots was separately collected in the purple tube (EDTA) and transported to the laboratory for analysis. The rabbits from the experimental batch were also collected distinctly a few minutes after the injection of the venom of Naja nigricollis for the analysis of haematological parameters. However, before the analysis of the hematological parameters of the rabbits from the control and experimental batches, an in vitro hemolysis test of Naja nigricollis venom was performed to verify its hemolysing power. The results showed that Naja nigricollis venom has a dose-dependent in vitro hemolysing power. As for the haemogram, it revealed that the venom of Naja nigricollis has a decreasing effect on blood cells (red and white blood cells), on haemoglobin and on haematocrit, and an elevation on MGVs thus promoting anaemia.

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