Inflammatory cytokine inhibition of erythropoiesis in patients implanted with a mechanical circulatory assist device

Perfusion ◽  
2005 ◽  
Vol 20 (2) ◽  
pp. 83-90 ◽  
Author(s):  
Christopher N Pierce ◽  
Douglas F Larson
Keyword(s):  
Inflammatory Cytokine ◽  
Hematological Parameters ◽  
Hemoglobin Concentration ◽  
Mean Cell Volume ◽  
Distribution Width ◽  
Normal Limits ◽  
Circulatory Assist Devices ◽  
Cytokine Inhibition ◽  
Normal Measure ◽  
The University

Mechanical circulatory assist devices (MCADs) are increasingly utilized independently of cardiac transplantation in the management of heart failure. Though MCAD use incorporates inherent mechanical risks, the inevitable onset of chronic anemia, with its associated morbidity and mortality, is also a significant concern. MCAD support has been correlated with elevated plasma levels of inflammatory cytokines TNF-α, IL-1b, and IL-6, which have separately been found to inhibit erythropoietin (Epo)-induced erythrocyte (RBC) maturation. Previous analysis of hematological parameters for MCAD-sup-ported patients concluded that an amplified inflammatory response impedes RBC proliferation and recovery from hemolytic anemia. Additional analysis may bolster this assertion. Hemoglobin concentration (HC), RBC distribution width (RDW), mean cell volume (MCV), and cardiac index were retrospectively analysed for 78 MCAD-supported patients implanted for greater than 30 days at the University of Arizona Health Sciences Center from 1996 to 2002. Analysis confirms that the HC, a conventional marker for anemia, declines with MCAD placement and remains below the clinically defined, minimum normal value. Inversely, the RDW rises above maximum normal measure, signifying an increased fraction of juvenile RBCs. The MCV remains unchanged and within normal limits, demonstrating adequate substrate for RBC formation. MCAD performance also stabilizes as adequate perfusion returns. These results further support our previously published conclusion that a sufficient response of erythropoiesis occurs in reaction to the onset of anemia by an increased production of immature RBCs. However, the cells never fully mature and join circulation. The patient’s inflammatory cytokine response to the implanted device most likely mediates the chronic MCAD-induced anemia by inhibition of Epo effects.

scholarly journals Blood Donation in Nigeria: Standard of the Donated Blood

2012 ◽  
Vol 4 (02) ◽  
pp. 094-097 ◽  
Author(s):  
Nwogoh Benedict ◽  
Awodu Omolade Augustina ◽  
Bazuaye Godwin Nosakhare
Keyword(s):  
Blood Donation ◽  
Hematological Parameters ◽  
Hemoglobin Concentration ◽  
Mean Corpuscular Hemoglobin ◽  
Corpuscular Hemoglobin ◽  
Mean Cell Volume ◽  
Benin City ◽  
Cell Counts ◽  
Significant Difference ◽  
The Mean

ABSTRACT Objective: The objective was to determine the basic hematological parameters of remunerated blood donors in Benin City and to compare them with those of voluntary donors. Materials and Methods: This is a prospective study conducted in a tertiary health facility in Benin City. Pretransfusion samples were obtained from blood bags after gentle mixing and analyzed for hematological parameters. Samples were analyzed using the hematology autoanalyzer MODEL SYSMEX KN21. Result: A total of 215 samples were obtained comprising 160 remunerated (paid) and 55 voluntary donor samples. In the paid donors, the mean hemoglobin concentration (Hb) and hematocrit (HCT) 7.7±2.9 and 28.8±8.5 respectively. This was significantly lower than those of voluntary donors who had 13.9±1.2 and 42.2±3.3 with P < 0.001. The mean values of the red cell counts (RBC), white cell counts (WBC), mean cell volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC) were significantly lower in paid donors as P-values were <0.001. MCV was significantly low but not compared to the other parameters as P=0.04. There was no significant difference in the platelet count. Conclusion: Paid donors in Benin City have significantly lower hematological parameters than controls.

The effect of heat stress on hematological parameters and oxidative stress among bakery workers

2020 ◽  
Vol 36 (1) ◽  
pp. 1-10
Author(s):  
Vahid Gharibi ◽  
Narges Khanjani ◽  
Hamidreza Heidari ◽  
Mohammad Hossein Ebrahimi ◽  
Majid Bagheri Hosseinabadi
Keyword(s):  
Oxidative Stress ◽  
Heat Stress ◽  
Hematological Parameters ◽  
Thermal Strain ◽  
Predictor Variable ◽  
Hemoglobin Concentration ◽  
Office Workers ◽  
Indoor Environments ◽  
Mean Cell Volume ◽  
And Oxidative Stress

Heat stress causes physiological changes, and changes in hematological parameters and hormonal levels in the human body, known as thermal strain. This study was conducted to determine the effect of exposure to heat stress on hematological parameters and oxidative stress in the bakers of Shahroud City, Iran. A total of 163 bakery workers (exposed group) and 135 office workers (unexposed group) with a minimum of 1-year working experience were selected. Exposure to heat stress was measured using ISO-7243 criteria on the hottest days of the year (late July and August). Wet-bulb globe temperature (WBGT) was calculated based on indoor environments. Oxidative stress indices including malondialdehyde (MDA), nitric oxide (NO), total antioxidant capacity (TAC) in the bakers' and office workers’ serum and hematological parameters were measured. Statistical analysis was done through independent t-test, and multivariate linear regression using SPSS v24. Analysis of hematological parameters showed that about 70% and 68% of the bakers had abnormal mean cell volume (MCV) and white blood cell (WBC) count, respectively, while only around 12% of them had abnormal mean cell hemoglobin concentration (MCHC). The counts of red blood cells (RBC), WBC, lymphocytes (LYM), and MCV showed significant differences in different occupational groups ( p < 0.05). The levels of MDA and NO were significantly higher in bakers with WBGT more than the threshold value ( p < 0.05). The WBGT index for assessing heat stress can be used as a predictor variable for MDA and NO levels. In addition, heat stress exposure could be a risk factor for abnormal WBC, RBC, LYM, and MCV.

Chronic sodium cyanate treatment induces "hypoxia-like" effects in rats

1986 ◽  
Vol 60 (4) ◽  
pp. 1145-1149 ◽  
Author(s):  
B. P. Teisseire ◽  
C. C. Vieilledent ◽  
L. J. Teisseire ◽  
M. O. Vallez ◽  
R. A. Herigault ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Pressor Response ◽  
Acute Hypoxia ◽  
Hemoglobin Concentration ◽  
Normal Growth ◽  
Mean Cell Volume ◽  
Control Value ◽  
Normal Limits ◽  
Sodium Cyanate ◽  
Mean Cell Hemoglobin

Three weeks of sodium cyanate (NaCNO) intraperitoneal treatment in rats (n = 15) induced high hemoglobin O2 affinity, i.e., low PO2 at 50% hemoglobin saturation (P50), 20.5 +/- 1.4 Torr, in comparison with the mean control values, 34.5 +/- 1.6 Torr (n = 15). NaCNO rats showed a reduction in mean body weight, 376 +/- 27 g, in comparison with controls, 423 +/- 23 g (P less than 0.001). Despite arterial O2 partial pressure (PaO2) within normal limits NaCNO-treated rats had a higher systolic right ventricular pressure (SRVP), 33.7 +/- 3.1 Torr, in comparison with control value, 29.0 +/- 2.5 Torr (P less than 0.001). Right ventricle weights were significantly increased (P less than 0.001). After 60 min of an hypoxic challenge (fractional concentration of inspired O2 = 0.10) NaCNO-treated rats increased SRVP of only 7 +/- 4% compared with 46 +/- 9% in the control animals. Inducing high hemoglobin affinity in rats (n = 10; 6 wk NaCNO treatment) resulted in increases in hematocrit ratio and hemoglobin concentration (P less than 0.001). The characteristics of the red blood cell (RBC) itself changed; values of mean cell volume, mean cell hemoglobin, and mean cell hemoglobin concentration being significantly increased (P less than 0.001) when compared with mean control values. The count of nucleated RBC′s appeared to be significantly higher from the 2nd wk of NaCNO treatment. Chronic NaCNO treatment was demonstrated to exert “hypoxia-like” effects since it induced prevention of normal growth, polycythemia, pulmonary hypertension, right ventricular hypertrophy, and blunted pulmonary pressor response to acute hypoxia.(ABSTRACT TRUNCATED AT 250 WORDS)

scholarly journals Red Blood Cell Variables in Children and Adolescents regarding the Age and Sex

2019 ◽  
Author(s):  
Jasmina PLUNCEVIC GLIGOROSKA ◽  
Serjoza GONTAREV ◽  
Beti DEJANOVA ◽  
Lidija TODOROVSKA ◽  
Daniela SHUKOVA STOJMANOVA ◽  
...  
Keyword(s):  
Blood Cell ◽  
Children And Adolescents ◽  
Red Blood Cell ◽  
Hematological Parameters ◽  
Hemoglobin Concentration ◽  
Female Group ◽  
Distribution Width ◽  
Hematological Indices ◽  
Significant Difference ◽  
Age And Sex

Background: This study aimed to assess the basic red blood cell variables and hematological indices in children and adolescents and analyze the differences regarding age and sex. Methods: Overall, 320 young participants, age 8 to 18 yr, were enrolled at Laboratory of Sport’s Medicine, Medical Faculty, Skopje, Macedonia in 2016. Capillary blood samples were drawn and following hematologic parameters were measured: the red blood cell count (RBC), hemoglobin concentration (Hb), hematocrit level (Hct) and hematological indexes: mean corpuscular volume (MCV), mean hemoglobin concentration (MCH), mean corpuscular hemoglobin concentration (MCHC) and red cell distribution width (RDW). Results: RBC variables in male group showed high statistical level of significance between age different groups (P=0.001) for all studied parameters except MCHC (P=0.423) and RDW (P=0.174). ANOVA test and multivariate tests in female group showed that there was no significant difference for all hematological parameters between age different groups. Regarding the sex differences, male participants had significantly higher red blood count (P<0.001), hemoglobin content (P<0.001) and hematocrit (P<0.001). Conclusion: Hematological parameters in adolescent as inhomogeneous population are not quantified sufficiently, especially hematological indices. RBC variables, regardless of the age, differ very much between male and female examinees, in favor of the male examinees. Hematological indices were insignificantly higher in males. Regarding the age of examinees, RBC variables showed significant inter-groups differences only within male adolescents. While with girls, ages span 8 to 18 yr, we did not find significant differences for most of the hematological variables.

scholarly journals Reference Interval of Hemoglobin A1c and Influence of Hematological Parameters on Its Serum Concentration in Dogs

2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Stephan Neumann
Keyword(s):  
Hemoglobin A1c ◽  
Hematological Parameters ◽  
Hemoglobin Concentration ◽  
Reference Interval ◽  
Blood Parameters ◽  
Red Cell ◽  
Cell Distribution ◽  
Distribution Width ◽  
Glucose Levels ◽  
Hba1c Concentration

HbA1c could be an alternative to fructosamine as a marker for glucose levels over a longer period. In this study, we calculated a reference interval for HbA1c in dogs and investigated the correlation of HbA1c with hemoglobin and different hematological parameters. In total, 110 blood samples from dogs were investigated. Significant negative correlations were found between HbA1c and erythrocyte count, hemoglobin concentration, as well as hematocrit. There was a tendency in the red cell distribution width. No significant correlation was found in the reticulocyte number and the erythrocyte indices. In conclusion, there is an association of different blood parameters with the HbA1c concentration, which have to be considered for the interpretation of HbA1c.

scholarly journals The hematological parameters in clinically normal Iraqi local breed goats

2015 ◽  
Vol 39 (2) ◽  
pp. 12-16
Author(s):  
AH. H. AL-Hadithy
Keyword(s):  
Blood Cell ◽  
Cell Volume ◽  
Hematological Parameters ◽  
Hemoglobin Concentration ◽  
Mean Cell Volume ◽  
Local Breed ◽  
Clinically Normal ◽  
Significant Difference ◽  
Males And Females ◽  
Mean Cell Hemoglobin

     The aim of the present work is to determine the hematological parameters in clinically normal local breed goats. The study was conducted on 130 goats (40 males of them 20 bucks and 20 buck kids and 90 females of them 20 doe kids, 20 dry does, 25 pregnant and 25 lactating does) aged 6 months-4 years in AL-Najaf province-Iraq. Blood samples were collected from the jugular vein into EDTA tubes during October 2013 untill February 2014. Results showed that the ranges and means ±SE of blood picture were as follows; packed cell volume (PCV) 26-40% and 31.8±0.32%, Hemoglobin (Hb) 8-14.3g/dL and 10.3±0.13 g/dL, Red blood cell (RBC) 10.6-17×106/μL and 13.3±0.14×106/μL, Mean cell volume (MCV) 18.4-32.5 fL and 23.9±0.14 fL, Mean cell Hemoglobin (MCH) 5.5-8.8 and 7.7±0.05 pg, Mean cell hemoglobin concentration (MCHC) 28.3-36.9 g/dL and  32.4±0.15 g/dL, Erythrocyte sedimentation (ESR) 1-10 mm/ 24h and 4.1±0.14 mm/ 24h, White blood cell count (WBC) 5500-15900/μL and 10732±242/μL, Lymphocyte (L) 2772-10172/μL and 6080±149 /Μl, neutrophils (N) 1863-8680/μL and 4112±121/μL, monocytes 57.0-622/μL and313±11/μL, eosinophil’s 0-918/μL and 222±14/μL, basophils 0±0/μL and 0±0/μL, L/N ratio 0.4-3.8 and 1.5±0.04, respectively. There was a significant (P<0.05) increase in PCV, Hb, RBC, MCV, MCH, MCHC and no difference in ESR,WBC, DLC and L/N ratio between males and females. However, significant (P<0.05) differences in most hematological parameters of sub groups have been recorded. In conclusion the present data recorded the reference values of hematological parameters in clinically healthy local breed goats with a significant difference between males and females as well as in normal subgroups.

Reticulocyte changes after experimental anemia and erythropoietin treatment of horses

2005 ◽  
Vol 99 (3) ◽  
pp. 915-921 ◽  
Author(s):  
C. Cooper ◽  
W. Sears ◽  
D. Bienzle
Keyword(s):  
Bone Marrow ◽  
Cell Volume ◽  
Block Design ◽  
Hemoglobin Concentration ◽  
Aerobic Performance ◽  
Mean Cell Volume ◽  
Distribution Width ◽  
Erythroid Precursor ◽  
Human Erythropoietin ◽  
Repeat Administration

Availability of recombinant human erythropoietin (EPO) has facilitated use to enhance red blood cell production, and therefore aerobic performance, in human and equine athletes. Recombinant human EPO promotes growth and differentiation of equine erythroid precursor cells, but in some horses repeat administration induces immune interference with endogenous EPO resulting in fatal anemia. Although blood reticulocyte parameters acquire unique changes in humans treated with EPO, with manual enumeration methods, horses were not considered to release reticulocytes from the bone marrow into circulation, even under severe erythropoietic stress. The goals of this study were to determine whether reticulocytes could be detected and characterized in horses that are anemic or have been treated with EPO using a modern hematology analyzer. Anemia was induced in six horses by removal of 30 ml of blood/kg of body wt over 24 h. After 28 days, the horses were treated twice with 55 U/kg of EPO (Eprex), and after 65 days they were treated thrice with 73 U/kg of EPO. Blood samples were analyzed with the ADVIA120 instrument every 3–5 days and bone marrow samples 7 days after anemia and EPO treatments. Analysis of blood reticulocyte parameters by ANOVA in a randomized complete block design determined that anemia and EPO induced significant ( P ≤ 0.05) increases in red cell distribution width and reticulocyte mean cell volume. Parameters changed only after EPO treatment were cellular hemoglobin concentration mean, mean cell volume, reticulocyte concentration, proportion of macrocytic reticulocytes, and reticulocyte cellular hemoglobin. These findings indicate that horses under erythropoietic stress and after EPO treatment release reticulocytes with unique characteristics into circulation.

scholarly journals Hematology Safety Data for the Fermented Soy Beverage Q-CAN® Plus (P12-033-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Wajahat Mehal ◽  
Arumugam Suyavaran ◽  
Evangelos Dioletis ◽  
Ricardo Paiva ◽  
Eric Secor ◽  
...  
Keyword(s):  
Hematological Parameters ◽  
Safety Data ◽  
Hemoglobin Concentration ◽  
Post Treatment ◽  
Biological Research ◽  
Mean Corpuscular Hemoglobin ◽  
New Haven ◽  
Corpuscular Hemoglobin ◽  
Distribution Width ◽  
Blood Indices

Abstract Objectives In this study we want to investigate the effects of Q-CAN® Plus, the nutritional fermented soy drink on the hematological parameters in lean and obese individuals. Methods Prospective study comprised of lean (10) and obese (10) individuals without a known diagnosis. 11 clinic visits over 14 weeks (visit 1/wk −2, visit 2/wk −1, visit 3/wk 0, visit 4/wk 1, visit 5/wk 2, visit 6/wk 3, visit 7/wk 4, visit 8/wk 6, visit 9/wk 8, visit 10/wk 10, visit 11/wk 12). Visits 1, 2 and 3 occurred prior to treatment. 237 ml of soy was dispensed at visit 3 and was consumed twice daily for 4 weeks until visit 7 (weeks 1–4). Visits 8, 9, 10 and 11 were post treatment. Blood was collected during visits 1, 3, 5, 7, 8, 9, 10,11, and various hematological parameters were quantified at Yale New haven health, hematology lab at the Department of laboratory medicine (Yale new haven health, Yale University, CT, USA). The values were statistically analyzed using one-way ANOVA and the results were considered significant for P < 0.05. Results Various blood indices such as mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), mean corpuscular volume (MCV), mean platelet volume (MPV), red blood cell distribution width (RDW-CV), hematocrit, RBC count, WBC count, % neutrophils, average number of neutrophils (# neutrophils), % monocytes, % basophils, average number of lymphocytes (# lymphocytes), % eosinophils and C- reactive protein were analyzed. These values were compared as plot curve for values from individual visits of each subject, as averages of combined values of both lean and obese individuals grouped as (pre, during and post) treatment periods of BESO soy drink, as averages of lean vs obese grouped for various treatment periods of BESO soy drink and as ratio of averages of lean vs obese group values for various treatment periods of BESO soy drink. The consumption of Q-CAN® Plus did not result in significant changes in any hematological parameters Conclusions Q-CAN® Plus fermented soy drink does not induce any significant change in the hematological parameters of both lean and obese individuals. These observations demonstrate the safety of Q-CAN® Plus regarding hematological parameters in lean and obese individuals. Funding Sources Beso Biological Research, Inc.

Modulation of Hematological Indices of Normal and Alloxan-Induced Diabetic Rabbits by Aqueous Extract of Pleurotus tuberregium Sclerotia

2020 ◽  
Vol 20 (3) ◽  
pp. 380-387
Author(s):  
Ifeanacho M. Onuekwuzu ◽  
Ikewuchi C. Chidinma ◽  
Ikewuchi J. Chigozie
Keyword(s):  
Aqueous Extract ◽  
Hematological Parameters ◽  
Hemoglobin Concentration ◽  
Diabetic Control ◽  
Red Cell ◽  
Distribution Width ◽  
Hematological Indices ◽  
Diabetic Rabbits ◽  
Pleurotus Tuberregium ◽  
Mean Cell Hemoglobin

Objective:: The ability of an aqueous extract of the sclerotia of Pleurotus tuberregium to modulate hematological parameters was investigated in normal and alloxan treated rabbits. Methods:: The extract was subjected to atomic absorption spectrophotometric and flame ionization detector-coupled-gas chromatographic (GC-FID) analysis. Diabetes mellitus was induced by a 120 mg/kg body weight intravenous injection of alloxan. Metformin was orally administered at 50 mg/kg, while the extract was administered (both to normal and diabetic rabbits) at 100, 200 and 300 mg/kg. Results:: Analysis of the extract showed that it had high contents of calcium, magnesium, manganese and potassium. Eleven known glycosides were detected, comprising mainly of amygdalin (37.7%), digoxin (14.4%), dhurrin (14.0%), linamarin (13.6%), prunasin (10.8%) and digitoxin (8.4%). Also detected were twelve known saponins, consisting mainly of sapogenin (40.3%) and neochlorogenin (21.8%); and twelve known lignans, consisting mainly of matairesinol (59.7%), secoisolariciresinol (20.9%) and lariciresinol (14.9%). Compared to the Diabetic control, the hematocrit, hemoglobin concentration, mean cell hemoglobin, mean cell hemoglobin concentration, mean corpuscular volume, red cell distribution width; and red cell, total white cell, lymphocytes, granulocytes and platelet counts of the treated groups were significantly (p<0.05) higher. Conclusion:: The above result showed that the extract had a positive effect on the hemopoietic system of the treated animals, at least at the doses at which it was administered in this study.

scholarly journals Reference Ranges for Hematological and Biochemical Profile of Martina Franca Donkeys

2020 ◽  
Vol 7 ◽  
Author(s):  
Francesca Trimboli ◽  
Ippolito De Amicis ◽  
Antonio Di Loria ◽  
Carlotta Ceniti ◽  
Augusto Carluccio
Keyword(s):  
Blood Cell ◽  
Hematological Parameters ◽  
Hemoglobin Concentration ◽  
Conservation Strategies ◽  
Total Serum ◽  
Mean Corpuscular Hemoglobin ◽  
Reference Ranges ◽  
Platelet Volume ◽  
Distribution Width ◽  
Glutamyl Transferase

The Martina Franca donkey (MFd) is one of the largest Italian donkey breeds, considered as endangered breed. To support the conservation strategies, knowledge about the physiologic hematological parameters of MFds is needed. The aims of the study were to determine reference value for hematological and major serum parameters in a population of healthy MFds and to estimate the influence of age on these parameters. Eighty-one clinically healthy MFds (17 males and 64 females) in different ages were enrolled: group A (foals, n° 16, animals &lt; 1 year old) group B (young animals, n° 36, from 1 to 3 years old), and group C (adult animals, n° 29, over 3 years old). Red blood cell count (RBC); hematocrit value (HCT); hemoglobin concentration (HGB); mean corpuscular volume (MCV); mean corpuscular hemoglobin (MCH); hemoglobin concentration distribution width (HDW); RBC distribution width (RDW); total white blood cell (WBC); WBC differential count for neutrophils, lymphocytes, monocytes, eosinophils and basophils, and platelets (PLT); mean platelet volume (MPV); platelet volume distribution width; and plateletcrit (PCT) were analyzed. The biochemistry panel included aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), gamma glutamyl transferase (GGT), total serum protein (TP), albumin (ALB), cholesterol (CHOL), triglyceride (TGL), blood urea nitrogen (BUN), creatinine (CREA), glucose (GLU), Ca2+, phosphorus, Na+, Cl−, K+, and Mg2+. The effect of age on hematological parameters was investigated using one-way ANOVA test. Age of donkeys does not influence total WBC, HGB, HCT, platelet count and MPV, and PCT (P &gt; 0.05). Some leukocyte populations such as eosinophils, monocytes, and basophils showed age-linked variations (P &lt; 0.05). RBC count, RDW, and HDW decrease with age whereas MCV and MCH increase. Na+, K+, Cl−, Ca2+, phosphorus, ALP, GGT, CREA, GLUC, and CHOL decrease with age (P &lt; 0.05), while AST and TP showed an increase with aging (P &lt; 0.05). ALB reaches the lowest values in young donkeys and returns to values of foals in older animals (P &lt; 0.05). Finally, a difference among groups for BUN and TGL was not found (P &lt; 0.05). The results suggest how even for the MFd breed, age is a variable that affects different hematological and biochemical parameters. Compared to other donkey and horses, the MFd breed showed some differences that clinicians involved during conservation strategies need to be consider.

Sign in / Sign up

Export Citation Format

Share Document