Blood Cell Mean Corpuscular Volume Research Articles

Red Cell Distribution Width and Mean Corpuscular Volume Alterations: Detecting Inflammation Early in Occupational Cement Dust Exposure.

Introduction Cement dust emitted during cement manufacture consists of toxic components. Occupational cement dust exposure may cause inflammation in the human body, which may be detected early by observing changes in blood parameters such as red blood cell distribution width (RDW) and mean corpuscular volume (MCV). Objectives The study aims to observe the effect of occupational cement dust exposure on RDW and MCV. Methods This study was performed in the Department of Physiology of Dhaka Medical College, Dhaka, Bangladesh, and a factory in Munshiganj, Bangladesh, from September 2017 to August 2018. Ninety-two participants between 20 and 50 years were included (46 subjects were occupationally exposed to cement dust, and 46 were not exposed to cement dust). A pre-designed questionnaire was used for data collection. An independent sample t-test was used to analyze basic information, such as blood pressure and BMI. The multivariate regression model was used to analyze the effect of cement dust exposure on the study group. The impact of cement dust exposure duration was analyzed using the multivariate regression model. The level of significance was p < 0.05. The statistical analysis was performed using STATA-15 (StataCorp, College Station, TX), and the graphical presentation used GraphPad Prism v8.3.2. Results The cement dust-exposed participants had a significantly higher value of MCV by 1.19 fi (95% CI = 0.02, 4.84; p = 0.049) and a 5.92% increase in RDW (95% CI = 5.29, 6.55; p < 0.001) than that of the control group. Conclusion The study reveals that exposure to cement dust causes significant changes in RDW and MCV. These changes may indicate hemolysis due to inflammation.

Effect of Aloe vera on some serum bioactive parameters in male Wistar albino rats

For centuries, Aloe vera has been hailed as a natural remedy with a plethora of health benefits. The present study aimed to evaluate the impact of A. vera on their haematological, biochemical, and immunological parameters. Twenty male Wistar albino rats were taken and split into two groups. Group I (Treatment Group)received a prepared aqueous A. vera extract at a concentration of 50 mg/kg of body weight for a full 30 days. Group II (Control Group) was given 0.9% normal saline as a placebo.The study found that the rats that received the A. vera extract had significantly (p&lt;0.05) higher packed cell volume (14.8±1.08) compared to the control group (11.26±0.45). However, there were no significant changes in the levels of hemoglobin (Hb), red blood cell count (RBC),mean corpuscular hemoglobin (MCH) concentration, white blood cells (WBC) count, platelets count, and mean corpuscular volume (MCV). The serum alanine transaminase (ALT) concentration (U/L) was significantly (p&lt;0.05) lower in the treated group (39.54±7.74) than in the control group (77.68±6.96), while there were no significant changes in the levels of urea and creatinine compared to the control group. The plasma levels of proinflammatory markers(TNFa, IL-6, and IFNγ) showed no significant differences between both groups. Overall, A. vera showed promise as a natural remedy for improving certain aspects of health, but more research is needed to understand its effects fully.

The blood count as a compass to navigate in the ever-changing landscape of the carrier state of hemoglobinopathies: a single-center Italian experience.

Approximately 7% of the worldwide population exhibits variations in the globin genes. The recent migration of populations from countries where hemoglobin disorders are endemic has resulted in important epidemiological changes with the diffusion of newly discovered or poorly characterized genetic variants and new combinations and very heterogeneous clinical phenotypes. The aim of our study is to assess the parameters that are more significant in predicting a positive genetic testing outcome for hemoglobinopathies in a pediatric population of patients presenting with anemia or microcythemia, without a definite diagnosis. This study included patients evaluated in our hematological outpatient clinic for anemia and/or microcythemia despite normal ferritin levels. A screening of pathological hemoglobins using high-performance liquid chromatography (HPLC) was performed for the entire population of the study. Subsequently, patients with hemoglobin (Hb) S trait and patients with an HPLC profile compatible with beta thalassemia trait were excluded from the study. Genetic screening tests for hemoglobinopathies were performed on the remaining patients, which involved measuring the red blood cell (RBC) counts, red blood cells distribution width (RDW), reticulocyte count, and mean corpuscular volume of reticulocytes (MCVr). This study evaluated a total of 65 patients, consisting of nine patients with negative genetic analysis results and 56 patients with positive genetic analysis results. The Hb and RDW values in these two groups did not demonstrate statistical significance. On the other hand, there were statistically significant differences observed in the mean corpuscular volume (MCV), RBC count, reticulocyte count, and MCVr between the two groups. Furthermore, in the group of patients with positive genetic test results, specific genetic findings associated with different HPLC results were observed. In particular, 13 patients with positive genetic test results had normal HPLC findings. This study has demonstrated that HPLC, while serving as a valuable first-level test, has some limitations. Specifically, it has been observed that some patients may exhibit a negative HPLC result despite a positive genetic analysis. In addition to the presence of low levels of Hb and HPLC alterations, other parameters could potentially indicate the underlying mutations in the globin genes. Therefore, we propose that the complete blood cell count be utilized as a widely available parameter for conducting targeted genetic analyses to avoid the risk of overlooking rare hemoglobinopathies.

NUDT15 Haplotypes and Diplotypes Predict Thiopurine-Induced Leukopenia and the Influence of Prolonged Exposure to Azathioprine on Hematologic Indices in Patients with Inflammatory Bowel Diseases

Background. NUDT15 gene polymorphisms have been identified to predispose Asian patients with an inflammatory bowel disease (IBD) to thiopurine-induced leukopenia. This study predicted the influence of NUDT15 haplotypes and diplotypes on azathioprine (AZA)-induced leukopenia as well as the long-term influence of AZA on hematologic parameters in IBD. Methods. 194 IBD patients were tested for NUDT15 genotypes. We collected clinical data of 80 patients with AZA treatment including adverse events, dosage, white blood cell (WBC) count, platelet (PLT) count, and mean corpuscular volume (MCV) after AZA initiation. Patients without adverse events and drug withdrawal were followed up for at least one year. The relationship between NUDT15 haplotypes and diplotypes and leukopenia was analyzed. Results. The haplotypes NUDT15 c.415C &gt; T and c.36_37insGGAGTC as well as the diplotypes NUDT15 ∗ 1/ ∗ 2, ∗ 3/ ∗ 3, and ∗ 3/ ∗ 5 were significantly associated with AZA-induced leukopenia. Only one patient with NUDT15 c.52G &gt; A experienced leukopenia. NUDT15 ∗ 1/ ∗ 3 was not associated with leukopenia. After AZA initiation, the WBC count showed a downward trend in both wild types and mutants. The mean of WBC count in the mutant group at 1st month after AZA initiation was lower than that in the wild-type group ( P = 0.006 ). The MCV increased gradually in mutant cases ( P = 0.039 ), and the differences were obvious at 6th and 12th months compared with the baseline ( P = 0.014 a n d P = 0.042 , respectively). The PLT count showed a decreasing trend in the mutant group, but there was no difference until 11 months after initiating treatment ( P = 0.023 ). The final dose of AZA in the NUDT15 mutant group was significantly lower than that in the wild-type group ( P = 0.006 ). Conclusion. NUDT15 polymorphisms may be an appropriate predictor of AZA abnormal hematologic indices in IBD patients. It is necessary for IBD patients to monitor hematological indices and optimize AZA therapy.

Hematologic profiles of Beta thalassemia major patients: An institutional cross-sectional study

Introduction: Thalassemia is inherited blood disorder characterized by decreased hemoglobin with two main types-alpha and beta thalassemia. There are two main varieties of β thalassaemia, β0 thalassaemia, in which no β globin is produced, and β+ thalassaemia, in which some β globin is produced, but less than normal. As the patient is diagnosed, regular blood transfusions and chelating treatment is given lifelong. In this study, we observed the haematological profiles of multi transfused thalassemia major patients with the accompanying complications.Aims and Objectives: To study the clinical features with RBC parameters, serum ferritin levels, chelation therapy and prevalence of blood transfusion related infection in multi transfused beta thalassemia major patients.Materials and Method: In this cross sectional study, total 90 diagnosed thalassemia major patients were taken with their complete history, physical examination and laboratory parameters such as- complete blood counts. All the patients were monitored for serum ferritin levels and chelation therapy along with screening for transfusion transmitted infections over a year. All the data were compiled and appropriate statistical analysis was done.Results: In present study out of 90 patients, 54 patients were males and 36 patients were females. Mean age of 15.26 ± 7.04 years with 68.9% (N=62) of cases required twice monthly transfusion, 30.0% (n=27) cases required once a month transfusion. 25 cases were found to be HCV+ (27.78%), 3 were HIV + (3.3%) and 62 cases were n on-reactive (68.89%). On first post transfusion CBC we found that 30 cases (33.33%) were found to be adequately transfused with levels > 10 gm%, where as in second results 34 cases (37.78%) were found to be adequately transfused with levels >10 gm%. Mean of average yearly average ferritin values in the study duration was found to be 4724 ± 287.65 ng/mL. The chelating agent dose was with mean 1040 mg and standard deviation 476.19.Conclusion: In the present study, it is concluded that haematological parameters like Haematocrit, Red Blood Cell mass, Haemoglobin and Mean Corpuscular volume had large covariances and Serum Ferritin levels was positively correlated with chelation therapy along with increased rate of transfusion transmitted infections in multi transfused thalassemia major patients.

Erythroferrone Overexpression Impairs Survival and Greatly Increases Tissue Iron Loading in a Mouse Model of β-Thalassemia

Beta-thalassemia, caused by mutations in the β-globin gene, is characterized by ineffective erythropoiesis, anemia and associated multi-organ dysfunction. Like in other anemias with ineffective erythropoiesis, the erythroid hormone erythroferrone (ERFE) is pathologically overproduced. ERFE functions by suppressing the master iron regulatory hormone hepcidin, and the chronic suppression of hepcidin in β-thalassemia results in excessive iron absorption and iron overload, even in patients who do not receive erythrocyte transfusions. A major obstacle in studying the role of ERFE in β-thalassemia has been the lack of a mouse model that represents the wide range of ERFE concentrations observed in human patients (Ganz et al, Blood 2017). Our lab generated ERFE-transgenic mice with a range of ERFE overexpression (Coffey et al, Blood 2022) and showed that they developed dose-dependent iron overload and relative hepcidin deficiency. In the current study, the mid-range ERFE-overexpressing E(M) mice were crossed with HbbTh3/+ (Th3) mice, a widely used model of β-thalassemia, to generate mice with a single copy of both transgenes (T-E(M)), as well as littermate controls (Th3, WT, E(M)), to analyze the effect of ERFE on the pathophysiology of ineffective erythropoiesis. The offspring had a noticeably skewed genotypic ratio, with T-E(M) pups making up only <9% of surviving pups compared to 25% expected for each genotype. At embryonic day 18.5, however, there was an equal distribution of all expected genotypes, suggesting that the mortality in T-E(M) pups is postnatal. Surviving T-E(M) mice were analyzed at 16 weeks of age. They had similar erythrocyte parameters to the Th3 littermates , with the expected decrease in red blood cell count, hemoglobin and mean corpuscular volume. Despite the similarities in blood counts, we discovered a synergistic effect of the ERFE and Th3 transgenes on ERFE production in the T-E(M) mice as indicated by increased serum ERFE levels (Figure 1a) and increased Erfe mRNA levels in the bone marrow and spleen compared with both E(M) and Th3 littermates. The dramatic increase in serum ERFE in T-E(M) mice may result from multiplicative effects of erythroblast expansion in Th3 mice and transgenic ERFE overexpression in individual erythroblasts of T-E(M) mice. The large range of ERFE concentrations in human patients may also reflect the combined effects of erythroblast number and ERFE overproduction by erythropoietin-stimulated thalassemic erythroblasts, both of which vary depending on patient genetics. T-E(M) mice also have significantly larger spleens compared to Th3 littermates, suggesting that ERFE overexpression contributes to increased extramedullary hematopoiesis in T-E(M) spleens. In addition, T-E(M) mice had significantly higher iron levels in the liver (Figure 1b) as well as serum and kidney compared to Th3 littermates. Coupled with the inappropriately low serum hepcidin levels (compared to liver iron levels) in T-E(M) mice, even when compared to E(M) and Th3 littermates, these data indicate that excessive ERFE further increases iron loading in a mouse model of β-thalassemia. Our data demonstrate that elevated ERFE levels contribute to the pathogenesis of β-thalassemia by decreasing postnatal survival, increasing iron overload, and increasing extramedullary hematopoiesis. These results suggest that neutralizing excessive ERFE levels may have therapeutic benefits for postnatal development and prevention of iron overload in β-thalassemia. Figure 1View largeDownload PPTFigure 1View largeDownload PPT Close modal

Effect of inulin, galacto oligosaccharides and iron fortification on iron deficiency anemia among women of reproductive age; a randomized controlled trial

Iron supplementation and fortification are the well-known approaches to treat iron deficiency anemia (IDA) in women of reproductive age. The objective of the current randomized controlled trial (RCT) was to evaluate the cumulative effects of prebiotics and iron fortification among women of reproductive age. For this purpose, a total of 75 iron deficient women of childbearing age were recruited and randomly divided into 5 groups (4 treatment groups and 1 control group). Four different types of fortified wheat flour were prepared using two iron fortificants (NaFeEDTA and FeSO4) and two prebiotics [inulin and galacto oligosaccharides (GOS)], while control group was treated with iron fortified flour without any prebiotics. Blood samples were collected from overnight fasted women on monthly basis up to 90 days. Hematological indices such as Hemoglobin (Hb), Hematocrit, Red Blood Cell (RBC) Count and Mean Corpuscular Volume (MCV), as well as iron biomarkers including serum iron, ferritin, transferrin, and Total Iron Binding Capacity (TIBC) were evaluated for analyses. The results showed a considerable positive improvement in all iron biomarkers as well as hematological indices among the treatment groups (P-value < 0.05), as compared to the control group. A maximum Hb (11.86 ± 0.24 mg/dL) and hematocrit value (35.06 ± 1.32%), was reported in group G3 which was treated with fortified wheat flour at a dose of 963 mg/kg GOS + 15 ppm FeSO4. On the other hand, highest mean values for RBC Count (4.73 ± 0.41 mil/mm3), MCV (81.41 ± 3.21 fL), serum iron (75.62 ± 2.79 μg/dL), serum transferrin (16.82 ± 0.30 mg/dL), and TIBC (403.68 ± 7.27 μg/dL) were observed in G4 group receiving the fortified wheat flour at a dose of 963 mg/kg GOS + 30 ppm FeSO4 level. The study concluded that prebiotic fortification along with iron salts helps to enhance iron absorption among iron deficiency anemic women of reproductive age.

Studies of cow urine and its effect on hematological and histopathological analysis of pathogen-induced animal

The effect of fresh, photo-activated and distilled cow urine was examined on the hematological parameters of pathogen-induced albino rats using automated hematological analyzer. The albino rats were grouped into 3 (A, B and C) and 2 controls; with each group containing 5 rats. Each animal group was induced with 0.5mL of Pseudomonas aeruginosa, Escherichia coli and Salmonella typhi respectively. After 7 days of infection, each animal group was treated with fresh, photo-activated and distilled cow urine for the period of 5 days. The animal group infected with P. aeruginosa died after second day of treatment. The blood samples of the animal were collected for hematological analysis. The parameters taken are; Packed Cell Volume (PCV), Hemoglobin (Hb), White Blood Cell count (WBC), Neutrophil, Lymphocytes, Monocytes, Eosinophil and Mean Corpuscular Volume (MCV), Mean Corpuscular Hemoglobin (MCH), Mean Corpuscular Hemoglobin Concentration (MCHC) and Red Blood Cell count (RBC). The result obtained from the analysis showed that all the samples of cow urine used were effective in the treatment of diseases caused by the bacterial pathogens.

A Mendelian randomization-based exploration of red blood cell distribution width and mean corpuscular volume with risk of hemorrhagic strokes.

SummaryRed blood cell distribution width (RCDW) and mean corpuscular volume (MCV) are associated with different risk factors for hemorrhagic stroke. However, whether RCDW and MCV are causally related to hemorrhagic stroke remains poorly understood. Therefore, we explored the causality between RCDW/MCV and nontraumatic hemorrhagic strokes using Mendelian randomization (MR) methods. We extracted exposure and outcome summary statistics from the UK Biobank and FinnGen. We evaluated the causality of RCDW/MCV on four outcomes (subarachnoid hemorrhage [SAH], intracerebral hemorrhage [ICH], nontraumatic intracranial hemorrhage [nITH], and a combination of SAH, cerebral aneurysm, and aneurysm operations) using univariable MR (UMR) and multivariable MR (MVMR). We further performed colocalization and mediation analyses. UMR and MVMR revealed that higher genetically predicted MCV is protective of ICH (UMR: odds ratio [OR] = 0.89 [0.8–0.99], p = 0.036; MVMR: OR = 0.87 [0.78–0.98], p = 0.021) and nITH (UMR: OR = 0.89 [0.82–0.97], p = 0.005; MVMR: OR = 0.88 [0.8–0.96], p = 0.004). There were no strong causal associations between RCDW/MCV and any other outcome. Colocalization analysis revealed a shared causal variant between MCV and ICH; it was not reported to be associated with ICH. Proportion mediated via diastolic blood pressure was 3.1% (0.1%,14.3%) in ICH and 3.4% (0.2%,15.8%) in nITH. The study constitutes the first MR analysis on whether genetically elevated RCDW and MCV affect the risk of hemorrhagic strokes. UMR, MVMR, and mediation analysis revealed that MCV is a protective factor for ICH and nITH, which may inform new insights into the treatments for hemorrhagic strokes.

Association of Clonal Hematopoiesis of Indeterminate Potential with Worse Kidney Function and Anemia in Two Cohorts of Patients with Advanced Chronic Kidney Disease.

Clonal hematopoiesis of indeterminate potential (CHIP) is an inflammatory premalignant disorder resulting from acquired genetic mutations in hematopoietic stem cells. This condition is common in aging populations and associated with cardiovascular morbidity and overall mortality, but its role in CKD is unknown. We performed targeted sequencing to detect CHIP mutations in two independent cohorts of 87 and 85 adults with an eGFR<60 ml/min per 1.73m2. We also assessed kidney function, hematologic, and mineral bone disease parameters cross-sectionally at baseline, and collected creatinine measurements over the following 5-year period. At baseline, CHIP was detected in 18 of 87 (21%) and 25 of 85 (29%) cohort participants. Participants with CHIP were at higher risk of kidney failure, as predicted by the Kidney Failure Risk Equation (KFRE), compared with those without CHIP. Individuals with CHIP manifested a 2.2-fold increased risk of a 50% decline in eGFR or ESKD over 5 years of follow-up (hazard ratio 2.2; 95% confidence interval, 1.2 to 3.8) in a Cox proportional hazard model adjusted for age, sex, and baseline eGFR. The addition of CHIP to 2-year and 5-year calibrated KFRE risk models improved ESKD predictions. Those with CHIP also had lower hemoglobin, higher ferritin, and higher red blood cell mean corpuscular volume versus those without CHIP. In this exploratory analysis of individuals with preexisting CKD, CHIP was associated with higher baseline KFRE scores, greater progression of CKD, and anemia. Further research is needed to define the nature of the relationship between CHIP and kidney disease progression.

Effects of Diazinon on the Survival, Blood Parameters, Gills, and Liver of Grass Carp (Ctenopharyngodon idella Valenciennes, 1844; Teleostei: Cyprinidae)

Diazinon (DZN) is a widely used pesticide that can affect the vital organs of non-target aquatic animals—mainly fish. This study evaluated the acute toxicity (LC50) of six DZN concentrations (0.5, 0.75, 1.5, 2, 2.5, and 3 mg·L−1) and, based on its evaluation after 24 h, 48 h, 72 h, and 96 h, two sublethal concentrations for chronic toxicity testing (0.01 and 0.05 mg·L−1) for 21 days of exposure to DZN on grass carp fingerlings (Ctenopharyngodon idella Valenciennes, 1844). The median lethal concentrations of DZN at 24, 48, 72, and 96 h were 1.83, 1.57, 1.35, and 1.12 mg·L−1, respectively. Next, histological observations after 96 h LC50 showed oedema of the primary lamellae of the gills at low pesticide concentrations (0.5 to 1 mg·L−1) and extensive necrosis of primary lamellae of the gills at higher concentrations (1.5 to 3 mg·L−1). Moreover, cytoplasmic vacuolation and extensive necrosis were observed in liver tissue. Increased skin mucus, unbalanced swimming on the water surface, and increased gill opercula movements were noted during chronic exposure. Haematological parameters such as haematocrit, red blood cell count, white blood cell count, haemoglobin, and mean corpuscular volume were significantly reduced after 21 days of exposure to 0.05 mg·L−1 of DNZ (p &lt; 0.05). The present study shows that DZN has various toxic effects on grass carp, which may pose a potential risk for other fish species.

Breathing Abnormalities During Sleep and Wakefulness in Rett Syndrome: Clinical Relevance and Paradoxical Relationship With Circulating Pro-oxidant Markers

BackgroundBreathing abnormalities are common in Rett syndrome (RTT), a pervasive neurodevelopmental disorder almost exclusively affecting females. RTT is linked to mutations in the methyl-CpG-binding protein 2 (MeCP2) gene. Our aim was to assess the clinical relevance of apneas during sleep-wakefulness cycle in a population with RTT and the possible impact of apneas on circulating oxidative stress markers.MethodsFemale patients with a clinical diagnosis of typical RTT (n = 66), MECP2 gene mutation, and apneas were enrolled (mean age: 12.5 years). Baseline clinical severity, arterial blood gas analysis, and red blood cell count were assessed. Breathing was monitored during the wakefulness and sleep states (average recording time: 13 ± 0.5 h) with a portable polygraphic screening device. According to prevalence of breath holdings, the population was categorized into the wakefulness apnea (WA) and sleep apnea (SA) groups, and apnea-hypopnea index (AHI) was calculated. The impact of respiratory events on oxidative stress was assessed by plasma and intra-erythrocyte non-protein-bound iron (P-NPBI and IE-NPBI, respectively), and plasma F2-isoprostane (F2-IsoP) assays.ResultsSignificant prevalence of obstructive apneas with values of AHI > 15 was present in 69.7% of the population with RTT. The group with SA showed significantly increased AHI values > 15 (p = 0.0032), total breath holding episodes (p = 0.007), and average SpO2 (p = 0.0001) as well as lower nadir SpO2 (p = 0.0004) compared with the patients with WAs. The subgroups of patients with WA and SA showed no significant differences in arterial blood gas analysis variables (p > 0.089). Decreased mean cell hemoglobin (MCH) (p = 0.038) was observed in the group with WAs. P-NPBI levels were significantly higher in the group with WA than in that with SAs (p = 0.0001). Stepwise multiple linear regression models showed WA being related to nadir SpO2, average SpO2, and P-NPBI (adjusted R2 = 0.613, multiple correlation coefficient = 0.795 p < 0.0001), and P-NPBI being related to average SpO2, blood PaCO2, red blood cell mean corpuscular volume (MCV), age, and topiramate treatment (adjusted R2 = 0.551, multiple correlation coefficient = 0.765, p < 0.0001).ConclusionOur findings indicate that the impact of apneas in RTT is uneven according to the sleep-wakefulness cycle, and that plasma redox active iron represents a potential novel therapeutic target.

Positive and negative acute phase reactants in sickle cell diseases

Background: We tried to understand some positive and negative acute phase reactants (APR) in sickle cell diseases (SCD). Methods: Consecutive patients with the SCD and controls were studied. Results: The study included 193 patients (98 females) and 132 controls (67 females). Although the body weight and body mass index (BMI) were retarded in the SCD (58.9 versus 71.1 kg and 21.5 versus 26.8 kg/m2, respectively, p&lt;0.000 for both), the body heights were similar in both groups (164.8 versus 162.8 cm, p&gt;0.05). Parallel to the retarded body weight and BMI, fasting plasma glucose (FPG) (93.4 versus 102.4 mg/dL, p=0.025), low density lipoproteins (LDL) (70.4 versus 98.1 mg/dL, p&lt;0.000), high density lipoproteins (HDL) (24.2 versus 35.8 mg/dL, p&lt;0.000), and systolic (117.6 versus 127.9 mmHg, p=0.001) and diastolic blood pressures (BP) (77.3 versus 86.0 mmHg, p&lt;0.000) were all retarded in the SCD. On the other hand, total bilirubin (TB) and lactate dehydrogenase (LDH) were both increased (4.0 versus 0.7 mg/dL and 638.9 versus 268.4 U/L, respectively, p&lt;0.000 for both) in the SCD. Similarly, white blood cell (WBC) and platelet (PLT) counts (16.338 versus 7.407 /µL and 421.424 versus 268.612 /µL, respectively) and mean corpuscular volume (MCV) (90.3 versus 78.3 fL) were all increased whereas the hematocrit (Hct) level was decreased (23.2 versus 36.6%) in the SCD (p&lt;0.000 for all). Conclusion: Body weight, BMI, FPG, LDL, HDL, systolic and diastolic BP, and Hct may be some negative whereas TB, LDH, WBC and PLT counts, and MCV may be some positive APR in the body. Keywords: Sickle cell diseases, positive acute phase reactants, negative acute phase reactants, chronic endothelial damage, atherosclerosis, body weight, body mass index

Changes in Serum N-Glycome for Risk Drinkers: A Comparison with Standard Markers for Alcohol Abuse in Men and Women.

Background and aim: Glycomic alterations serve as biomarker tools for different diseases. The present study aims to evaluate the diagnostic capability of serum N-glycosylation to identify alcohol risk drinking in comparison with standard markers. Methods: We included 1516 adult individuals (age range 18–91 years; 55.3% women), randomly selected from a general population. A total of 143 (21.0%) men and 50 (5.9%) women were classified as risk drinkers after quantification of daily alcohol consumption and the Alcohol Use Disorders Identification Test (AUDIT). Hydrophilic interaction ultra-performance liquid chromatography (HILIC-UPLC) was used for the quantification of 46 serum N-glycan peaks. Serum gamma-glutamyltransferase (GGT), carbohydrate-deficient transferrin (CDT), and red blood cell mean corpuscular volume (MCV) were measured by standard clinical laboratory methods. Results: Variations in serum N-glycome associated risk drinking were more prominent in men compared to women. A unique combination of N-glycan peaks selected by the selbal algorithm shows good discrimination between risk-drinkers and non-risk drinkers for men and women. Receiver operating characteristics (ROC) curves show accuracy for the diagnosis of risk drinking, which is comparable to that of the golden standards, GGT, MCV and CDT markers for men and women. Additionally, the inclusion of N-glycan peaks improves the diagnostic accuracy of the standard markers, although it remains relatively low, due to low sensitivity. For men, the area under the ROC curve using N-glycome data is 0.75, 0.76, and 0.77 when combined with GGT, MCV, and CDT, respectively. In women, the areas were 0.76, 0.73, and 0.73, respectively. Conclusion: Risk drinking is associated with significant variations in the serum N-glycome, which highlights its potential diagnostic utility.

Ferric carboxymaltose for treatment of iron deficiency and iron deficiency anemia caused by abnormal uterine bleeding.

Heavy menstrual bleeding leads to depletion of iron stores, with subsequent iron deficiency (ID) and iron deficiency anemia (IDA). To evaluate the efficacy and safety of ferric carboxymaltose (FCM) in treatment of ID/IDA caused by abnormal uterine bleeding (AUB). One hundred and twenty women ≥ 40 years old with chronic AUB and ID/IDA were included in this study for correction of ID/IDA. Participants received FCM infusion for correction of ID/IDA. The pre-treatment ferritin, hemoglobin (Hb), red blood cell (RBC) mean corpuscular volume (MCV), and RBC mean corpuscular hemoglobin (MCH) values were compared with the 6- and 12-week post-treatment values. The pre-treatment ferritin and Hb levels significantly increased from 13.2 ±7.4 µg/l and 8.8 ±0.8 g/dl, respectively, to 111.5 ±5.6 µg/l and 13.9 ±0.6 g/dl, respectively, 6 weeks after FCM (p = 0.001 and 0.0009; respectively), and to 98.7 ±6.1 µg/l and 12.9 ±0.65 g/dl, respectively, 12 weeks after FCM (p = 0.01 and 0.01; respectively). In addition, the pre-treatment RBC MCV and RBC MCH values significantly increased from 74.3 ±2.3 fl and 26.6 ±5.3 pg, respectively, to 88.7 ±1.9 fl and 29.6 ±4.5 pg, respectively, 6 weeks after FCM (p = 0.01 and 0.03, respectively), and to 93.3 ±1.75 fl and 30.3 ±3.8 pg, respectively, 12 weeks after FCM (p = 0.001 and 0.0001, respectively). FCM was safe and effective for correction of ID/IDA caused by chronic AUB within 6 weeks. The serum ferritin, Hb, and RBC indices remained significantly high compared to the pre-treatment values 12 weeks after FCM infusion.

An Intergenic Noncoding Chromosome 18 Variant Suppresses Lethal Thrombosis in Mice By Normalizing Blood Coagulation and Reducing Platelet Reactivity

Background: Factor V Leiden (FVL) is a common thrombosis susceptibility variant in humans. It is incompletely penetrant; this indicates that there are modifiers of FVL that alter thrombosis susceptibility. We used mouse models of FVL (F5L) and heterozygous tissue factor pathway inhibitor deficiency (Tfpi+/-), to identify a perinatal lethal genetic interaction when mice inherited F5L/L Tfpi+/-. This phenotype was used as the basis for a sensitized genome wide ENU mutagenesis screen to identify mutations suppressing lethal thrombosis in F5L/L Tfpi+/- mice. From this screen, we generated multiple independent lines of thrombosuppressed mice, called MF5L, for Modifier of F5L. MF5L16 was a large, highly penetrant (77.2%), multigenerational pedigree containing 136 viable F5L/L Tfpi+/- mice.Aims: In the present study, we aimed to identify and functionally characterize the thrombosuppressor mutation present in MF5L16.Methods: Genomic analyses: We performed whole genome sequencing (WGS) on four MF5L16 F5L/L Tfpi+/- mice. We used comparative bioinformatic analyses to identify variants inherited by all four mice and compiled these variants into candidate variant list. PCR and Sanger sequencing were used to analyze the 136 F5L/L Tfpi+/- mice for inheritance of each of the candidate variants. Functional analyses: We performed biochemical blood coagulation and platelet assays of blood from the Chr18 A mice . Complete blood counts were measured using the Advia 2120 with settings optimized for C57BL/6 mouse blood. Platelet aggregation studies were performed using the Roche Multiplate Aggregometer with ADP and type 1 collagen as the aggregating agents.Results: We analyzed four MF5L16 mice by WGS and identified seven spontaneous mutations that arose in our F5L/L breeding colony that were introduced into MF5L16. Importantly, no coding variants were linked to these variants. Analysis of these seven mutations in all 136 MF5L16 F5L/L Tfpi+/- mice revealed a significant association between a Chromosome 18 intergenic variant (Chr18 G to A, Chr18 A) and F5L/L Tfpi+/- mouse survival (p=0.003). To re-create the suppression of the lethal F5L/L Tfpi+/- phenotype, we bred F5+/L Tfpi+/- Chr18 +/A triple heterozygous mice to F5L/L Chr18 A/A mice to observe the effects of Chr18 A on F5L/L Tfpi+/- mouse survival. Out of 109 mice from this cross, two F5L/L Tfpi+/- Chr18 +/A mice were produced (expected ratio ~1:8). This suggests that the Chr18 A variant suppresses F5L/L Tfpi+/- lethal thrombosis at ~15% penetrance. Complete blood count analysis on Chr18 +/+,Chr18 +/A, and Chr18 A/A mice determined that Chr18 A/A mice had reduced platelet count and distribution width and increased variability in red blood cell (RBC) mean corpuscular volume (n≥4; p<0.05). The Chr18 A/A mice did not display differences in PT or aPTT assays, but had significantly reduced platelet aggregation velocity when stimulated by both ADP and collagen agonists (n≥4; p=0.0002). Additionally, blood smears revealed the presence of poikilocytic RBCs in the Chr18 A/A mice.Conclusions and future directions: Our results establish that a noncoding intergenic Chr18 variant at nucleotide position 62,970,011 (G>A, Chr18 A) contributes to thrombosuppression by reducing platelet reactivity. The observed platelet and RBC phenotypes suggest that a major mechanism of Chr18 A thrombosuppression could be through regulation of gene expression in cells of the myeloid lineage. We are performing additional platelet and blood coagulation analyses to refine the phenotypic differences due to the Chr18 A variant. Comparative transcriptomic analyses are also being performed to identify the genetic pathways involved. Understanding the mechanism in which this intergenic mutation suppresses thrombosis could provide insights into human thrombosis regulation. DisclosuresNo relevant conflicts of interest to declare.

Pathological features in ‘humanized’ neonatal pig

Cytidine monophosphate-Nacetylneuraminic acid (Neu5Ac) hydroxylase (CMAH) and glycoprotein, alpha1, 3-galactosyltransferase (GGTA1) double knockout (DKO) pig models were produced to reduce immune reaction for xenotransplantation. However, the role of Neu5Gc and α-Gal in pigs has not been fully elucidated and it is necessary to consider the after-effect of inactivation of GGTA1 and CMAH in pigs. Hematological profiles of DKO pigs were analyzed through complete blood count (CBC). Histology of liver and spleen of DKO were investigated, and lectin blotting and mass spectrometry (MS) were performed to explore glycosylation changes in red blood cell (RBC) membranes of DKO pigs. DKO pigs showed common clinical signs such as weakness (100%), dyspnea (90%) and constipation (65%). DKO pigs revealed a significant decrease in RBC, hemoglobin (HGB) and hematocrit (HGB), and an increase in white blood cell (WBC), lymphocyte (LYM), monocyte (MON), and erythrocyte mean corpuscular volume (MCV). DKO piglets showed swollen liver and spleen, and exhibited raised deposition of hemosiderin and severe bleeding. Lectin assay and MS proved variations in glycosylation on RBC membranes. GGTA1/CMAH DKO pigs developed pathological features which are similar to anemic symptoms, and the variations in glycosylation on RBC membranes of DKO pigs may be attributed to the pathologies observed.

The prevalence of symptomatic knee osteoarthritis and its correlation analysis with complete blood count: a multicenter cross-sectional study in China

Purpose: The present study aims to estimate the prevalence of symptomatic knee osteoarthritis (OA) and analyze the correlation between symptomatic knee osteoarthritis and complete blood count (CBC) Results through large sample data from multiple centers in China. Methods: Nationally representative sample was derived from China Health and Retirement Longitudinal Study (CHARLS), a national random sample of the Chinese population, wave 3, which was mainly completed in 2015. A total of 21,100 individuals were interviewed, blood samples from 13,420 individuals were collected then. Individuals were asked whether they were often troubled with pain, after that, they’ll be asked to point out the site(s) of the body where he or she was currently experiencing pain, knee part included. At the same time, each individual was asked if he or she had a doctor-diagnosed arthritis. We define a subject as a symptomatic knee OA if he or she responded both questions positively. After data cleaning, a number of 12,952 individuals were categorized into four groups: (1) group 1: symptomatic knee OA individuals, (2) group 2: individuals who are suffering from knee pain but have no arthritis, (3) group 3: individuals who are diagnosed with arthritis but have no knee pain, (4) group 4: individuals without arthritis and knee pain. The flow chart of this study was shown in Figure 1. Post hoc multiple comparisons were conducted to analyze the CBC (hemoglobin, hematocrit, white blood cell count, platelet counts and mean corpuscular volume included) level in different groups. The criterion of significance is p < 0.05. Results: Among the 20,967 individuals included in the analysis, 19,692 answered both the knee pain and the doctor-diagnosed arthritis question, the prevalence of symptomatic knee OA was 9.18% (1,808 individuals). The CBC level (WBC, HGB, HCT, MCV, PLT) of the four groups was shown in Table 1 and Figure 2. Statistics showed that the hemoglobin level of symptomatic knee OA individuals (13.34±1.80 g/dL) was lower than that of other individuals (group 2 to 4: 13.51±1.98 g/dL, 13.62±2.03 g/dL, 13.82±1.92 g/dL, respectively), and the difference was statistically significant. The hematocrit level of symptomatic knee OA individuals (40.53±5.32 %) was lower than that of other individuals (group 2 to 4: 40.64±5.84 %, 41.23±5.83 %, 41.80±5.62 %, respectively), and the difference was statistically significant. The platelet counts level in arthritis individuals without knee pain was the lowest (199.09±76.88 ×109/L) when compared to other groups (group 1: 203.84±74.05 ×109/L, group 2: 208.21±81.03 ×109/L, group 4: 207.33±74.81 ×109/L). The level of white blood cell count and mean corpuscular volume showed no significance between the four groups. The significance between CBC level in the four groups was shown in Table 2. Conclusions: Symptomatic knee OA in China was still prevalent, the prevalence of symptomatic knee OA in 2015 was higher than that in 2011. Individuals with symptomatic knee OA had a tendency to lower hemoglobin and hematocrit, future research should pay more attention to effective treatment, management and prevention of symptomatic knee OA.View Large Image Figure ViewerDownload Hi-res image Download (PPT)View Large Image Figure ViewerDownload Hi-res image Download (PPT)View Large Image Figure ViewerDownload Hi-res image Download (PPT)

Prevention of doxorubicin-induced haematotoxicity by turmeric in Wistar rats

Doxorubicin is a known anticancer drug used in treatment of various cancers including leukemias, lymphomas, soft-tissue sarcomas and solid tumors. Doxorubicin exerts its toxicity on the blood by causing bone marrow suppression, myelosuppression, pronounced marrow depression and bone marrow depletion, and hypoplasia This study investigated the effect of turmeric on the haematological parameters in doxorubicin-induced oxidative stress in Wistar rats. 54 adult Wistar rats were divided into 9 groups of six animals each. Group 1 animals served as control (normal saline), group 2 animals served as negative control, and received doxorubicin, group 3 animals were given doxorubicin and turmeric, group 4 animals received doxorubicin and vitamin C, group 5 animals received doxorubicin and vitamin E, group 6 animals received doxorubicin, vitamins C and turmeric, group 7 animals received doxorubicin, vitamin E and turmeric, while group 8 animals received doxorubicin, vitamin C and vitamin E and finally, group 9 animals receive doxorubicin, vitamin C, vitamin E and turmeric. The experiment lasted for 28 days and blood samples were collected from each animal from the various groups for haematological assay. Doxorubicin caused a significant decrease in the serum levels of white blood cell count, neutrophil count, lymphocyte count, monocyte count, platelet count, red blood cell count, hemoglobin concentration, hematocrit and mean corpuscular volume. These changes were prevented by turmeric alone or in combined concomitant administration with vitamins C and or E and doxorubicin

Seasonal variations in hematological profile of Holstein dairy cows as an indicator for physiological status assessment

Abstract. This study aims to investigate, for the first time in Algeria, the effect of seasonal climatic changes on the hematological profile of Holstein dairy cows as an indicator for their physiological status assessment. The study was conducted between November 2018 and October 2019 and was performed on a lot of 14 dairy cows. Blood samples were collected quarterly during this study period. The data regarding seasonal changes in hematological parameters were not significant concerning red blood cell count (RBC), hemoglobin concentration (Hb) and mean corpuscular volume (MCV). However, variations were significant for hematocrit (HCT), mean corpuscular hemoglobin content (MCH), mean corpuscular hemoglobin concentration (MCHC) and blood platelets (PLT). The percentage of HCT was higher in autumn (27.99%) and spring (28.58%) compared to winter (26.52%) and summer (26.75%), (p&lt;0.05). MCH, MCHC and PLT levels were higher in summer compared to the other seasons (p&lt;0.05), (p&lt;0.01) and (p&lt;0.001), respectively. The highest number of WBC was generally observed in summer and autumn and the lowest in winter and spring (p&lt;0.01). The ratio neutrophils/lymphocytes (N:L) was equal to 1.01, 0.79, 0.98 and 0.89 in autumn, winter, spring and summer, respectively of which this difference was not significant. This study might be helpful for providing base line information on the hematological profile of dairy cattle for the evaluation of physiological status.