scholarly journals Influence of Calicophoron microbothrium amphistomosis on the biochemical and blood cell counts of cattle

2010 ◽  
Vol 84 (4) ◽  
pp. 355-361 ◽  
Author(s):  
M. Mavenyengwa ◽  
S. Mukaratirwa ◽  
J. Monrad
Keyword(s):  
Blood Cell ◽  
Post Infection ◽  
Clinical Signs ◽  
Full Blood Count ◽  
High Dose ◽  
Sample Collection ◽  
Serum Samples ◽  
Cell Counts ◽  
Group I ◽  
Total Plasma Protein

AbstractSixteen Tuli steers aged 1 year were subdivided into four equal groups (I–IV) and infected with Calicophoron microbothrium metacercariae. Group I received a low dose (LD) of 5000 metacercariae, group II a medium dose (MD) of 15,000 metacercariae, group III a high dose (HD) of 25,000 metacercariae while group IV was the non-infected control (C) group. The experimental animals were monitored daily for clinical signs while ethylene diamine tetraacetic acid (EDTA) blood and serum samples were collected every 7 days until day 28 post-infection, when sample collection was terminated. Samples were processed for full blood count, eosinophils and blood biochemical values for calcium, magnesium, phosphorus, total protein and albumin. Moderate to severe diarrhoea developed in the MD and HD groups at day 21 post-infection. The diarrhoea coincided with a significant decrease (P < 0.05) in total plasma protein, calcium and phosphorus levels, particularly in the MD group. Similarly, a significant decrease (P < 0.05) in the packed cell volume (PCV), the haemoglobin (Hb) and red blood cell (RBC) levels occurred in the MD and HD groups from day 21 post-infection, while a significant increase (P < 0.05) in the circulating eosinophils occurred between 7 and 21 days post-infection in the LD and the HD groups.

scholarly journals Kinetics of committed and primitive blood progenitor mobilization after chemotherapy and growth factor treatment and their use in autotransplants

Blood ◽  
1994 ◽  
Vol 83 (12) ◽  
pp. 3808-3814
Author(s):  
HJ Sutherland ◽  
CJ Eaves ◽  
PM Lansdorp ◽  
GL Phillips ◽  
DE Hogge
Keyword(s):  
Steady State ◽  
Growth Factor ◽  
Blood Cell ◽  
Peripheral Blood ◽  
Time Course ◽  
Recovery Phase ◽  
High Dose ◽  
Gm Csf ◽  
Cell Counts ◽  
Cd34 Cells

Peripheral blood cells (PBCs) collected by leukapheresis after progenitor mobilization with chemotherapy and growth factors have been used successfully to replace marrow autografts in protocols requiring stem-cell support. Moreover, such transplants are often associated with more rapid recovery of blood cell counts than is routinely achieved with bone marrow. While conditions that mobilize colony-forming cells (CFCs) into the circulation are becoming increasingly well characterized, little information is available as to how these or other mobilizing treatments may influence the release of more primitive cells into the peripheral blood. To quantitate the peripheral blood content of such cells, we used the long-term culture-initiating cell (LTC-IC) assay, which detects a cell type that is able to produce progeny CFCs after a minimum of 5 weeks in cultures containing marrow fibroblasts. In this report, we present the findings on 21 patients who were transplanted over a 7-year period at our institution with PBCs alone. PBCs were collected in steady-state (n = 6) or during the recovery phase after high-dose cyclophosphamide (Cy; n = 15, nine with and six without additional growth factor administration). PBCs collected from another 11 patients given granulocyte colony-stimulating factor (G-CSF) were transplanted together with autologous marrow. Time-course studies of nine patients after Cy +/- granulocyte-macrophage CSF (GM-CSF) showed that CD34+ cells, CFCs, and LTC-ICs fell from normal to undetectable levels after Cy, and increased at the time of white blood cell (WBC) recovery: LTC-ICs to a mean of sixfold and CFCs to a mean of 26-fold higher than normal. The mean number of CD34+ cells, CFCs, and LTC-ICs present in the PBC harvest was twofold to 10-fold higher after mobilization than in steady-state collections; however, more than 2-log interpatient variability was observed. After PBC transplantation, the median time to a WBC count more than 10(9)/L was 12 days; polymorphonuclear leukocyte (PMN) count more than 0.5 x 10(9)/L, 15 days; and platelet count more than 20 x 10(9)/L, 17 days, although patients who received fewer than 1.5 x 10(5) CFCs/kg had a more than 50% chance of delayed count recovery (> 28 days). Patients who received Cy + GM-CSF-stimulated PBCs had more rapid and consistent platelet recoveries as compared with other groups receiving Cy mobilized or steady-state PBCs alone, and a rapid WBC recovery after Cy predicted a rapid WBC recovery after transplantation.

Experimental oral and ocularEncephalitozoon cuniculiinfection in rabbits

Parasitology ◽  
2010 ◽  
Vol 137 (12) ◽  
pp. 1749-1757 ◽  
Author(s):  
E. JEKLOVA ◽  
L. LEVA ◽  
K. KOVARCIK ◽  
J. MATIASOVIC ◽  
V. KUMMER ◽  
...  
Keyword(s):  
Antibody Response ◽  
Experimental Infection ◽  
Post Infection ◽  
Clinical Signs ◽  
High Dose ◽  
Cell Mediated Immunity ◽  
Specific Cell ◽  
Immunological Responses ◽  
Obligate Intracellular Pathogen ◽  
Dose Dependent

SUMMARYEncephalitozoon cuniculiis an obligate intracellular pathogen that has a wide host distribution, but primarily affects rabbits. The aim of this study was to characterize both the cell-mediated and the antibody response in rabbits after experimental infection using 2 different infection routes: oral and ocular. SPF rabbits were infected with low (103spores) and high (107spores) infection doses. Monitored parameters included clinical signs, detection of spores in urine, antibody response detected with ELISA, and cell-mediated immunity detected by antigen-driven lymphocyte proliferation. At week 13 post-infection, half of the rabbits in each group were suppressed by intramuscular administration of dexamethasone. At week 18 post-infection, animals were euthanized. Clinical signs were mild with exacerbation after immunosuppression. Spores in urine and antigen-specific cell-mediated immunity were detected from weeks 5 and 4 post-infection, respectively. Specific IgM was detected 1 week after infection, and IgG antibodies followed 1 week later in rabbits infected with the high dose. Immunological responses were dose dependent. The authors can conclude that both oral and ocular experimental infection withE. cuniculiresulted in an immune response of the infected animals. Rabbits could be used as an experimental model for the study of ocular microsporidiosis.

scholarly journals Evaluation Of Biochemical, Hematological And Antioxidant Properties In Mice Exposed To A Triherbal (Nigella sativa, Carica papaya and Boswellia sacra) Formular

2020 ◽  
Author(s):  
S. Kehinde ◽  
S. M. Adebayo ◽  
A. L. Adesiyan ◽  
E. A. Kade ◽  
K. Gurpreet
Keyword(s):  
Blood Cell ◽  
Protein Content ◽  
Carica Papaya ◽  
Nigella Sativa ◽  
Haemoglobin Concentration ◽  
High Dose ◽  
Corpuscular Haemoglobin ◽  
Cell Counts ◽  
Mean Corpuscular Haemoglobin ◽  
Boswellia Sacra

AbstractNigella sativa, Carica papaya and Boswellia sacra are medicinal plants in the commonly used in folkloric medicine due to the presence of its immense therapeutic properties. Fifty (50) female albino mice weighing between 15-22g were divided into five groups of 10 mice each. Animal in group 1 served as control group and were administered distilled water while animal in group 2 were given 2ml of cisplatin (orally). Animal in group 3-5 were given orally; 100 mg/kg (low dose), 200 mg/kg (medium dose) and 400 mg/kg (high dose) of triherbal preparation. The feeding regimens lasted for 28 days. After 28 days, mammary gland and blood samples were collected for haematological and antioxidant analysis. The triherbal formula decreased the GSH and MDA levels of mice treated with 100 mg/kg and 400 mg/kg doses compare to control. The measurement of total protein content, SOD and CAT increased in treated animals compared to control. However, RBC (Red Blood Cell) counts significantly decreased in the low, medium and high dose groups (0.95±0.08, 6.57±0.08 and 3.55±0.55 x 106 cells/mm3 respectively) compared to control (7.34±0.40) at P<0.05. Also, significant decreases (P<0.05) in the level of the total WBC (White Blood Cell) count, platelet count, PCV (Packed Cell Volume) and Hb (haemoglobin) concentration were observed. The decreases were dose dependent. The MCH (Mean Corpuscular Haemoglobin) and MCHC (Mean Corpuscular Haemoglobin Concentration) except MCV (Mean Corpuscular Volume) significantly decreased in treated group only. The triherbal formulation exhibited significant antioxidant activities showing increased levels of SOD, CAT and Protein content due to activation of the enzyme involve in detoxification of free radicals and decreased in the level of GSH and MDA due to accumulation of peroxides and H2O2. Also, decreased in haematological parameters due to the presence of phytochemicals such as phenol, resins, saponins, sterols, tannis and terpenes in the triherbal formula. Therefore, it has potential to induce haematotoxicity hence consumption of high concentrations should be discouraged.

scholarly journals DUCK EGGWHITE POTENTIAL IN TREATING SUBACUTE LEAD POISONING

2017 ◽  
Vol 10 (14) ◽  
pp. 98
Author(s):  
Aulia Andi Mustika ◽  
Andriyanto Andriyanto ◽  
Lina Noviyanti Sutardi ◽  
Meilisa L Margarita
Keyword(s):  
Blood Cell ◽  
Lead Poisoning ◽  
Red Blood Cell ◽  
Clinical Signs ◽  
Egg White ◽  
High Concentration ◽  
Treatment Groups ◽  
Cell Counts ◽  
Duck Egg ◽  
Cell Profile

Objectives: The aim of this research is to study duck eggwhite potential in treating subacute lead poisoning.Methods: The potential of duck egg white was evaluated from the red blood cell profile and the clinical signs that emerged. The research used thirtymale rats which were divided into 6 groups and 5 replications (i.e. rats as control, rats dministrated only with lead, rats administrated with leadand antidote). Each of the four treatment groups were given one antidote (i.e. EDTA, 50% egg white, 75% egg white, and 100% egg white). Leadforce feeding was conducted for 15 days, followed by the administration of the antidote for the same duration of 15 days, and concluded with bloodsampling at the end of each treatment.Results: There was no significant effect on haemoglobin but lead decreased total red blood cells (p<0.05) in subacute lead poisoning. Rats that weregiven 75% and 100% duck egg white as an antidote showed an increase in total red blood cell counts in addition to a faster recovery.Conclusion: High concentration of duck egg white had shown positive results as an antidote for subacute lead poisoning. 

Safety Evaluation of Lipid Nanoparticle–Formulated Modified mRNA in the Sprague-Dawley Rat and Cynomolgus Monkey

2017 ◽  
Vol 55 (2) ◽  
pp. 341-354 ◽  
Author(s):  
Maja Sedic ◽  
Joseph J. Senn ◽  
Andy Lynn ◽  
Michael Laska ◽  
Mike Smith ◽  
...  
Keyword(s):  
Blood Cell ◽  
Intravenous Infusion ◽  
Cell Mass ◽  
Pharmacokinetic Analysis ◽  
High Dose ◽  
Sprague Dawley ◽  
Test Species ◽  
Cell Counts ◽  
Pharmacologically Active

The pharmacology, pharmacokinetics, and safety of modified mRNA formulated in lipid nanoparticles (LNPs) were evaluated after repeat intravenous infusion to rats and monkeys. In both species, modified mRNA encoding the protein for human erythropoietin (hEPO) had predictable and consistent pharmacologic and toxicologic effects. Pharmacokinetic analysis conducted following the first dose showed that measured hEPO levels were maximal at 6 hours after the end of intravenous infusion and in excess of 100-fold the anticipated efficacious exposure (17.6 ng/ml) at the highest dose tested.24 hEPO was pharmacologically active in both the rat and the monkey, as indicated by a significant increase in red blood cell mass parameters. The primary safety-related findings were caused by the exaggerated pharmacology of hEPO and included increased hematopoiesis in the liver, spleen, and bone marrow (rats) and minimal hemorrhage in the heart (monkeys). Additional primary safety-related findings in the rat included mildly increased white blood cell counts, changes in the coagulation parameters at all doses, as well as liver injury and release of interferon γ–inducible protein 10 in high-dose groups only. In the monkey, as seen with the parenteral administration of cationic LNPs, splenic necrosis and lymphocyte depletion were observed, accompanied with mild and reversible complement activation. These findings defined a well-tolerated dose level above the anticipated efficacious dose. Overall, these combined studies indicate that LNP-formulated modified mRNA can be administered by intravenous infusion in 2 toxicologically relevant test species and generate supratherapeutic levels of protein (hEPO) in vivo.

scholarly journals Microfluidic Cartridges for Automated, Point-of-Care Blood Cell Counting

2016 ◽  
Vol 22 (2) ◽  
pp. 176-185
Author(s):  
Suzanne Smith ◽  
Phophi Madzivhandila ◽  
René Sewart ◽  
Ureshnie Govender ◽  
Holger Becker ◽  
...  
Keyword(s):  
Blood Cell ◽  
White Blood Cell ◽  
Red Blood Cell ◽  
Blood Count ◽  
Point Of Care ◽  
Cell Counting ◽  
Full Blood Count ◽  
Diagnostic Tools ◽  
Cell Counts ◽  
Blood Cell Counting

Disposable, low-cost microfluidic cartridges for automated blood cell counting applications are presented in this article. The need for point-of-care medical diagnostic tools is evident, particularly in low-resource and rural settings, and a full blood count is often the first step in patient diagnosis. Total white and red blood cell counts have been implemented toward a full blood count, using microfluidic cartridges with automated sample introduction and processing steps for visual microscopy cell counting to be performed. The functional steps within the microfluidic cartridge as well as the surrounding instrumentation required to control and test the cartridges in an automated fashion are described. The results recorded from 10 white blood cell and 10 red blood cell counting cartridges are presented and compare well with the results obtained from the accepted gold-standard flow cytometry method performed at pathology laboratories. Comparisons were also made using manual methods of blood cell counting using a hemocytometer, as well as a commercially available point-of-care white blood cell counting system. The functionality of the blood cell counting microfluidic cartridges can be extended to platelet counting and potential hemoglobin analysis, toward the implementation of an automated, point-of-care full blood count.

scholarly journals Hepatoprotective and Hematological Effects of Solanum melongena (Garden Egg), Solannum lycopersicum (Tomato) and Daucus carrots Subsp. Sativus (Carrot) Extracts against Lead Induced Toxicity in Wistar Rats

2021 ◽  
pp. 10-18
Author(s):  
Dennis Amaechi ◽  
I. P. Ekpe ◽  
E. D. Edet ◽  
M. C. Madu
Keyword(s):  
Blood Cell ◽  
Wistar Rats ◽  
Test Group ◽  
Negative Control ◽  
Control Group ◽  
Acetate Solution ◽  
Treatment Groups ◽  
Cell Counts ◽  
Group I ◽  
Group Ii

Background of the Study: Lead effects were assessed by analyzing the impacts of the extract on the liver enzyme concentrations and hematology parameters. Materials and Methods: Thirty five male wistar rats weighing 85-110 g were distributed into five groups consisting of seven rats each. Group I served as control group, group II served as the test group, groups III, IV and V served as treatment groups. Lead acetate solution was given to the rats orally at a dose of 50 mg/kg body weight and 200 mg/kg of fruit extracts for 14 days. On day 15, biochemical analysis were carried out. Results: Effects of extracts showed that ALT,AST and ALP concentration in group II was observed to be significantly (p<0.05) higher than the control and treatment groups with values. The hematology results showed that lead did not cause a significant reduction in the packed cell volume, white blood cell and red blood cell counts. However, the group treated with carrot and garden egg showed slight increase in RBC and WBC count when compared with the positive and negative control groups. Conclusion: From the results above, it showed that the fruits extract have hematopoietic potentials and hence aid in the hepatoprotection of the liver of lead induced Wistar rats.

Detection of Theileria equi in spleen and blood of asymptomatic piroplasm carrier horses

2013 ◽  
Vol 58 (2) ◽  
Author(s):  
Isabel Ribeiro ◽  
Antônio Câmara ◽  
Marta Bittencourt ◽  
Tatiana Marçola ◽  
Giane Paludo ◽  
...  
Keyword(s):  
Blood Cell ◽  
Jugular Vein ◽  
Clinical Signs ◽  
Theileria Equi ◽  
Infected Horse ◽  
Blood Samples ◽  
Cell Counts ◽  
Blood Cell Counts ◽  
Whole Blood Samples ◽  
Hematological Evaluation

AbstractThis study aimed to determine whether asymptomatic horses naturally infected with Theileria equi retain infected erythrocytes in the spleen and whether the presence of the hemoparasite in this organ is associated with parasitemia. We collected samples from 25 adult horses without clinical signs of any disease. From each animal, we collected whole blood samples from the jugular vein and a splenic puncture blood sample. All samples were submited to blood cell counts and detection of Theileria or Babesia. DNA extraction and PCR were performed in all samples for identification of piroplasm infection (T. equi and B. caballi). From the 25 horses evaluated for piroplasm detection by PCR, seven horses (28%) were positive in jugular vein blood but negative in splenic blood samples, five horses (20%) were positive in splenic blood samples but negative in jugular vein blood samples, and 13 horses (52%) were positive in both jugular vein and splenic blood samples. The hematological evaluation revealed anemia in 13 of 25 (52%) infected horses, lymphopenia in five (20%), neutrophilia in two (8%), neutropenia in one (4%), and thrombocytopenia in one (4%) infected horse. The present study demonstrated that several (20%) of the asymptomatic piroplasm carrier horses did not show parasitemia, but show infected erythrocytes in the spleen.

scholarly journals Longitudinal multi-omics transition associated with fatality in critically ill COVID-19 patients

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Chaoyang Sun ◽  
Yuzhe Sun ◽  
Ping Wu ◽  
Wencheng Ding ◽  
Shiyou Wang ◽  
...  
Keyword(s):  
Blood Cell ◽  
Critically Ill ◽  
Clinical Data ◽  
Red Blood Cell ◽  
Serum Samples ◽  
Risk Of Death ◽  
Cell Counts ◽  
Blood Cell Counts ◽  
Increased Risk ◽  
Independent Cohort

Abstract Purpose Critically ill COVID-19 patients have significantly increased risk of death. Although several circulating biomarkers are thought to be related to COVID-19 severity, few studies have focused on the characteristics of critically ill patients with different outcomes. The objective of this study was to perform a longitudinal investigation of the potential mechanisms affecting the prognosis of critically ill COVID-19 patients. Methods In addition to clinical data, 113 whole blood samples and 85 serum samples were collected from 33 severe and critical COVID-19 patients without selected comorbidities. Multi-omics analysis was then performed using longitudinal samples. Results Obvious transcriptional transitions were more frequent in critical survivors than in critical non-survivors, indicating that phase transition may be related to survival. Based on analysis of differentially expressed genes during transition, the erythrocyte differentiation pathway was significantly enriched. Furthermore, clinical data indicated that red blood cell counts showed greater fluctuation in survivors than in non-survivors. Moreover, declining red blood cell counts and hemoglobin levels were validated as prognostic markers of poor outcome in an independent cohort of 114 critical COVID-19 patients. Protein–metabolite–lipid network analysis indicated that tryptophan metabolism and melatonin may contribute to molecular transitions in critical COVID-19 patients with different outcomes. Conclusions This study systematically and comprehensively depicted the longitudinal hallmarks of critical COVID-19 patients and indicated that multi-omics transition may impact the prognosis. Take home message Frequent transcriptional phase transitions may contribute to outcome in critically ill COVID-19 patients. Furthermore, fluctuation in red blood cell and hemoglobin levels may relate to poor prognosis. The biological function of melatonin was suppressed in COVID-19 non-survivors, which may provide a potential theoretical basis for clinical administration.

Sign in / Sign up

Export Citation Format

Share Document