scholarly journals Electrodeformation of White Blood Cells Enriched with Gold Nanoparticles

Processes ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 134
Author(s):  
Nicholas G. Hallfors ◽  
Jeremy C. M. Teo ◽  
Peter M. Bertone ◽  
Chakra P. Joshi ◽  
Ajymurat Orozaliev ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Immune System ◽  
Blood Cells ◽  
Microelectrode Array ◽  
White Blood Cells ◽  
Valuable Insight ◽  
System Activity ◽  
Combined Use ◽  
Insight Into

The elasticity of white blood cells (WBCs) provides valuable insight into the condition of the cells themselves, the presence of some diseases, as well as immune system activity. In this work, we describe a novel process of refined control of WBCs’ elasticity through a combined use of gold nanoparticles (AuNPs) and the microelectrode array device. The capture and controlled deformation of gold nanoparticles enriched white blood cells in vitro are demonstrated and quantified. Gold nanoparticles enhance the effect of electrically induced deformation and make the DEP-related processes more controllable.

scholarly journals Electrodeformation of White Blood Cells Enriched with Gold Nanoparticles

2021 ◽  
Author(s):  
Nicholas G. Hallfors ◽  
Jeremy M. Teo ◽  
Peter Bertone ◽  
Chakra Joshi ◽  
Ajymurat Orozaliev ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Immune System ◽  
Blood Cells ◽  
Microelectrode Array ◽  
White Blood Cells ◽  
Valuable Insight ◽  
System Activity ◽  
Combined Use ◽  
Insight Into

The elasticity of white blood cells (WBCs) provides valuable insight into the condition of the cells themselves, the presence of some diseases, as well as immune system activity. In this work, we describe a novel process of refined control of WBCs elasticity through a combined use of gold nanoparticles (AuNPs) and the microelectrode array device. The capture and controlled deformation of gold nanoparticles enriched white blood cells in vitro are demonstrated and quantified. Gold nanoparticles enhance the effect of electrically induced deformation and make the DEP related processes more controllable.

NORMAL GRANULOCYTE INFUSION THERAPY FOR ASPERGILLOSIS IN CHRONIC GRANULOMATOUS DISEASE

PEDIATRICS ◽  
1973 ◽  
Vol 51 (2) ◽  
pp. 230-233
Author(s):  
Andrew A. Raubitschek ◽  
Alan S. Levin ◽  
Daniel P. Stites ◽  
Edward B. Shaw ◽  
H. Hugh Fudenberg
Keyword(s):  
Adverse Effects ◽  
Chronic Granulomatous Disease ◽  
Blood Cells ◽  
White Blood Cells ◽  
Infusion Therapy ◽  
Granulomatous Disease ◽  
Transient Improvement ◽  
Life Threatening ◽  
Granulocyte Function

An 8-year-old boy with chronic granulomatous disease (CGD) was admitted in moribund condition with aspergillus pneumonia. Because of the gravity of the situation, normal granulocyte infusions were used as adjuncts to the more conventional antimicrobial therapy. White blood cells, derived from a total of 58 units of whole blood obtained by leukophoresis of the father, were given in two separate doses. The first dose, totaling 2.8 x 1010 granulocytes, was coincident with significant improvement, and the second, totaling 3.0 x 1010 granulocytes, was coincident with the onset of clinical improvement and interim recovery. Transient improvement in in vitro granulocyte function was noted in cells taken from the patient's blood immediately after infusion. No adverse effects of the infusions were noted in either the patient or the donor. Although it is impossible to divorce the therapeutic effect of the granulocyte infusions from the more conventional therapy, we conclude that normal granulocyte infusions can be considered a valid adjunct in children with CGD who are suffering from a life-threatening infection.

Utility of 8 h and time decay-corrected acquisition scintigraphy with in-vitro labeled white blood cells for the diagnosis of osteoarticular infection

2017 ◽  
Vol 38 (6) ◽  
pp. 500-508 ◽  
Author(s):  
Edel Noriega-Álvarez ◽  
Guillermo A. Martínez Pimienta ◽  
Ana M. Benítez Segura ◽  
María T. Bajén Lázaro ◽  
Alba Rodríguez-Gasén ◽  
...  
Keyword(s):  
Blood Cells ◽  
White Blood Cells ◽  
Time Decay ◽  
Osteoarticular Infection

EFFECTS OF BLOOD CELLS ON PLATELET AGGREGATION BY IMPEDANCE METHOD

1987 ◽  
Author(s):  
L Mannucci ◽  
R Redaelli ◽  
E Tremoll
Keyword(s):  
Platelet Aggregation ◽  
Whole Blood ◽  
Blood Cells ◽  
White Blood Cells ◽  
Normal Subjects ◽  
Impedance Method ◽  
Induced Aggregation ◽  
Vitro Data ◽  
In Vitro Data

To evaluate the effects of blood cells on the response of platelets to aggregating agents using whole blood impedance aggregometer, studies were carried out on whole blood (WB) of normal subjects and of patients with: polycythemia vera (PV), iatrogenic anemia (IA), primary thrombocytosis (PT), idiopathic thrombotic purpura (ITP), myeloid chronic leukemia (MCL), iatrogenic leukopenia (IL). The in vitro effects of red blood cells (RBC) and of white blood cells (WBC) on platelet rich plasma (PRP) aggregation were also evaluated. WB, PRP, WBC and RBC were prepared by conventional methods. Aggregation was performed using the impedance aggregometer (mod. 540, Chrono Log Corp). In normal subjects the concentration of collagen giving 50 % aggregation (AC50 ) found in PRP did not differ from that of WB, indicating that hematocrit values within the normal range did not appreciably affect platelet aggregation. The results obtained in WB of patients are summarized in the table: In vitro data showed that aggregation in prp in wb of normal subjects was related to the number of platelets present in the sample. RBC added to PRP significant reduced aggregation only when the RBC number was greater than 4.101 cells. No effect of WBC on collagen induced aggregation of PRP was observed, whereas significant inhibition was detected after ADP. It is concluded that the aggregation evaluated in WB with impedance method is dependent on the platelet number. Also, in vitro data and studies in WB of patients indicate that aggregation is significantly affected by the presence of cells other than platelets only in conditions of changes of the ratio between platelets and leukocytes and/or red cells.

scholarly journals Association between serum markers of the humoral immune system and inflammation in the Swedish AMORIS study

2020 ◽  
Author(s):  
aida santaolalla ◽  
Sam Sollie ◽  
Ali Rislan ◽  
Debra H. Josephs ◽  
Niklas Hammar ◽  
...  
Keyword(s):  
Immune System ◽  
Educational Level ◽  
Blood Cells ◽  
Adaptive Response ◽  
White Blood Cells ◽  
Principal Component ◽  
Serum Markers ◽  
Response Component ◽  
Humoral Immune ◽  
Humoral Immune System

Abstract Background: Although the onset of inflammatory cascades may profoundly influence the nature of antibody responses, the interplay between inflammatory and humoral (antibody) immune markers remains unclear. Thus, we explored the reciprocity between the humoral immune system and inflammation and assessed how external socio-demographic factors may influence these interactions.Methods: From the AMORIS cohort, 5,513 individuals were identified with baseline measurements of serum humoral immune (immunoglobulin G, A & M (IgG, IgA, IgM)) and inflammation (C-reactive protein (CRP), albumin, haptoglobin, white blood cells (WBC), iron and total iron-binding capacity) markers measured on the same day. Correlation analysis, principal component analysis and hierarchical clustering were used to evaluate biomarkers correlation, variation and associations. Multivariate analysis of variance was used to assess associations between biomarkers and educational level, socio-economic status, sex and age.Results: Frequently used serum markers for inflammation, CRP, haptoglobin and white blood cells, correlated together. Hierarchical clustering and principal component analysis confirmed the interaction between these main biological responses, showing an acute response component (CRP, Haptoglobin, WBC, IgM) and adaptive response component (Albumin, Iron, TIBC, IgA, IgG). A socioeconomic gradient associated with worse health outcomes was observed, specifically low educational level, older age and male sex were associated with serum levels that indicated infection and inflammation.Conclusions: These findings indicate that serum markers of the humoral immune system and inflammation closely interact in response to infection or inflammation. Clustering analysis presented two main immune response components: an acute and an adaptive response, comprising markers of both biological pathways. Future studies should shift from single internal marker assessment to multiple humoral and inflammation serum markers combined, when assessing risk of clinical outcomes such as cancer.

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.

Evaluation of Citrinin Toxicity on the Immune Functions of Mice1

1988 ◽  
Vol 51 (1) ◽  
pp. 32-36 ◽  
Author(s):  
R. V. REDDY ◽  
M. J. TAYLOR ◽  
R. P. SHARMA
Keyword(s):  
Immune System ◽  
Blood Cells ◽  
Lymphocyte Proliferation ◽  
Immune Functions ◽  
Fungal Metabolite ◽  
Organ Weights ◽  
Splenic Cells ◽  
Foot Pad ◽  
Delayed Hypersensitivity Reaction

Citrinin, a nephrotoxic fungal metabolite produced by several species of Penicillium and Aspergillus, has been found to contaminate foods used by humans and animals. The present study investigated potential effects of this compound on the immune system. Male CD-1 mice received 0, 0.12, 0.6 or 3.0 mg of citrinin/kg i.p. every other day for 2–4 weeks. Food consumption and body or organ weights were not affected but kidneys were enlarged. Splenic cells from mice exposed to citrinin for 2 or 4 weeks were cultured with or without the mitogens, phytohemagglutinin (PHA), pokewecd mitogen (PWM) or lipopolysaccharide (LPS). Exposure to citrinin stimulated splenic lymphocyte proliferation. Antibody production by splenic cells in animals sensitized to sheep red blood cells (SRBC) increased in the two highest dose groups. Delayed hypersensitivity reaction, measured as a foot-pad swelling, in response to SRBC sensitization and subsequent challenge were not affected by citrinin treatment. In vitro addition of citrinin (>1 × 10−5M) to splenic lymphocytes was cytotoxic. These findings suggest that citrinin mildly stimulates the immune system but does not have consistent immunotoxic effects at the doses tested.

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