scholarly journals Traffic Related Air Pollution Exposure Effect on Circulating White Blood Cell Counts in Healthy Individuals

2021 ◽  
Vol 8 (1) ◽  
pp. 106-113
Author(s):  
Anjam Shezadi ◽  
Muhammad Shahbaz ◽  
Irfan Baboo ◽  
Faiza Shakir ◽  
Misbah Shoukat
Keyword(s):  
Blood Pressure ◽  
Air Pollution ◽  
Blood Cells ◽  
White Blood Cells ◽  
The Body ◽  
Blood Samples ◽  
Exposure Effect ◽  
Cell Counts ◽  
Exhaust Fumes ◽  
White Blood Cell Counts

During this short term study a total of 110 samples were collected from the selected individuals of study area. This study was aimed to count the White blood cells in the blood samples of individuals, who were mostly exposed to exhaust fumes (air pollution), like traffic constables, cooks and shopkeepers. For this purpose blood samples were taken into an evacuee container having anticoagulant Ethylene diamine tetra-acetic acid (EDTA) so to prevent coagulation of blood, for the count of WBCs, heamocyto-meter was used. During the study the body mass index and blood pressure was also measured by digital blood pressure measuring apparatus. Samples were observed under the microscope. It was found that 15% (13,133±2544.081) sampled individuals had increased WBCs and 85% (7821±1482.76) normal WBCs. In female samples 50% (11900±2151.27) were observed with above range of WBCs and other 50% (8540±844.39) with normal range of WBCs count, non-had WBCs count lower than the normal WBCs. Mostly had normal and few had above the range. One way ANOVA has been used to analyze connection of exposure to air pollution with counts of circulating white blood cells.

scholarly journals Moderate Range Static Magnetic Field Promoted Variation of Blood Parameters: An In vitro Study

2020 ◽  
Vol 8 (1) ◽  
pp. 55-64
Author(s):  
Bestoon T. Mustafa ◽  
Sardar P. Yaba ◽  
Asaad H. Ismail
Keyword(s):  
Magnetic Field ◽  
Blood Cell ◽  
Static Magnetic Field ◽  
Blood Cells ◽  
White Blood Cells ◽  
Albino Rats ◽  
Field Exposure ◽  
Blood Samples ◽  
Cell Counts

This study was undertaken to investigate the influence of a homogenous and uniform static magnetic field (SMF) on the main blood cell counts in vitro experiment. Fresh blood samples were collected from albino rats and exposed to SMF (2.4, 6, 25, 50, 75, and 100 mT) versus 15–60 min. Results showed a significant change of blood counts under the low field effects. A 2.4 mT was a trend of white blood cells (WBCs) count increase non-linearly. However, a 6 mT exposure reduced WBCs with about 39%. Other variations fluctuated within 30%. The 25 mT decreased red blood cells (RBCs), hemoglobin, and hematocrit levels with 13% similarly. The lower exposure field, (2.4 and 6) mT, and effects on RBCs were 6% fluctuation. The 6 mT reduced platelet counts with half in comparison to control blood samples. About 20% increase obtained due to 50 mT exposure during all period. None of 75 and 100 mT exposures dominated blood counts alterations. The quiet magnetic field exposure for a certain time can be interesting to control blood cell count-related diseases.

scholarly journals Determination of an optimal dilution of virulent feline infectious enteritis (panleucopaenia) virus for challenge purposes

1970 ◽  
Vol 68 (4) ◽  
pp. 549-556 ◽  
Author(s):  
K. J. O'Reilly
Keyword(s):  
Influenza Virus ◽  
Blood Cells ◽  
White Blood Cells ◽  
Geometric Means ◽  
Virus Challenge ◽  
Cell Counts ◽  
Blood Cell Counts ◽  
Virulent Virus ◽  
White Blood Cell Counts

SUMMARYWhen ten cats were infected orally with undiluted or a 10−1 dilution of virulent feline infectious enteritis (panleucopaenia) virus, all developed severe leucopaenia followed by the development of demonstrable antibody, but none died. Eighteen of 29 cats given a 10−2 dilution of virus died of the disease. Three of the survivors had white blood cell counts of less than 4000 and three had counts between 4000 and 6000 cells. Although the remaining five animals never had individual counts of less than 6000 cells, the geometric means of these counts showed that a marked depression in the leucocyte counts had occurred. All surviving cats developed antibody.Among the ten cats dosed with either 10−3 or 10−4 dilution of virus, four died of feline infectious enteritis and three developed antibody after falls in the leucocyte counts. It is suspected that low dilutions of feline infectious enteritis virulent virus in cats produce a phenomenon similar to that reported by von Magnus (1954) with influenza virus in eggs.Leucopaenia is commonly defined as less than 4000 white blood cells/mm.3 of blood. Counts lower than this are usual in cats which either die of the disease or have received large doses of virus; they are less common in cats surviving after administration of diluted virus. Challenge of cats with pre-existing antibody did not provoke a depression in the leucocyte counts.

Chemoprotective Action of Rasayanas against Cyclosphamide Toxicity

1994 ◽  
Vol 80 (4) ◽  
pp. 306-308 ◽  
Author(s):  
Vayalil Praveenkumar ◽  
Ramadasan Kuttan ◽  
Girija Kuttan
Keyword(s):  
Bone Marrow ◽  
Blood Cells ◽  
White Blood Cells ◽  
Immunomodulatory Activity ◽  
Drug Preparation ◽  
Herbal Drug ◽  
Bone Marrow Cellularity ◽  
Cell Counts ◽  
White Blood Cell Counts ◽  
Marrow Cellularity

Aims and backgrond Mylosuppression has been found to be one of the major drawbacks in cancer chemotherapy. Presently the effect of Rasayanas, an indigenous herbal drug preparation having immunomodulatory activity, in reducing myelosuppression and subseguent leukopenia was studied. Methods Animals were injected cyclophosphamide (50 mg/kg b.wt. daily for 14 days) with or without Rasayanas (50 mg/animal) and total white blood cells, bone marrow cellularity and survival of the animals were determined. Results Oral administration of Brahma Rasayana (BR) and Ashwagandha/Rasayana (AR) was found to protect mice from cyclophosphamide induced leukopenia. Total white blood cell counts in BR and AR treated animals on day 12 were 3800 and 3000 cells(mm3 respectively, which was significantly high compared to that of controls (700 cells/mm3). When the treatment was stopped on day 14 the value increased to 27,000 and 26,000 cells/mm3. The bone marrow cellularity were also significantly high in BR and AR treated animals (3.45 × 106 and 2.38 × 16 cells femur respectively) compared to that of controls. (0.72 × 106 cells/femur). Conclusion The results indicate the usefulness of Rasayanas in chemotherapy induced myelosuppression and leukopenia.

Effect of temperature as a stresser on white blood cells, adrenals and bursae of Fabricius of chicks

1960 ◽  
Vol 198 (6) ◽  
pp. 1346-1348 ◽  
Author(s):  
Lloyd Chancellor ◽  
Bruce Glick
Keyword(s):  
Blood Cells ◽  
Adrenal Glands ◽  
Marked Decrease ◽  
White Blood Cells ◽  
Heat Exposure ◽  
Bursa Of Fabricius ◽  
Effect Of Temperature ◽  
Cell Counts ◽  
White Blood Cell Counts ◽  
Environmental Temperatures

The effects of extreme environmental temperatures on white blood cell counts and weights of the bursa of Fabricius—a lymphoepithelial gland—and adrenal glands of young birds was studied. Birds bled immediately after 15–30-minute exposures to temperatures between 112° and 118°F revealed a marked decrease in total white blood cells and percentage of heterophils and an increase in percentage of lymphocytes. When the birds were bled 2 hours after 30 minutes of heat exposure, there was a marked increase in percentage of heterophils and decrease in percentage of lymphocytes. Exposures of 30 minutes to 41°– 44°F temperatures did not have a consistent effect on white blood cells. Neither temperature affected the weights of the bursa of Fabricius or adrenal glands.

scholarly journals ON ALIMENTARY LEUCOCYTOSIS IN ITS RELATION TO THE "CRISE HÉMOCLASIQUE" OF WIDAL

1922 ◽  
Vol 36 (4) ◽  
pp. 415-426 ◽  
Author(s):  
W. Storm van Leeuwen ◽  
Z. Bien ◽  
H. Varekamp
Keyword(s):  
Blood Pressure ◽  
Causative Agent ◽  
Blood Cells ◽  
White Blood Cells ◽  
The Body ◽  
Short Intervals ◽  
Sharp Fall ◽  
Normal Individuals ◽  
Slow Rise ◽  
Similar Decrease

Counts of the number of white blood cells at short intervals after the ingestion of a meal (meat, eggs, milk, rice, or butter) in normal individuals and in a number of asthmatics reveal the following facts. As a rule, a sharp fall in the leucocytic curve occurs within 1 or 2 minutes after the meal; generally the curve rises within 10 to 20 minutes, but often a second fall follows 30 to 50 minutes after the meal. This may be followed by a slow rise in the curve (physiological leucocytosis). The first sharp fall is often accompanied by a similar decrease in red cells, the leucocytic formula is not changed, the blood pressure also remains unchanged, and this makes it probable that the leucopenia observed is only a manifestation of a change in distribution of the blood in different regions of the body. Not infrequently the leucocyte curve after ingestion of food shows a form differing considerably from that described above. Counts of white cells made at intervals of 20 minutes in the same patient at different times but after ingestion of the same food show very different leucocytic curves. Such counts do not give evidence of the existence of a crise hémoclasique and consequently cannot be used to identify the causative agent of cases of hypersensitiveness to foodstuffs or drugs. Whether such an identification can be obtained if instead of simply counting white cells the whole complex of symptoms originally described by Widal as characteristic for a crise hémoclasique is used, remains undetermined by our work.

scholarly journals Evaluating Accuracy of DNA Pool Construction Based on White Blood Cell Counts

2021 ◽  
Vol 12 ◽  
Author(s):  
Amy N. Abrams ◽  
Tara G. McDaneld ◽  
John W. Keele ◽  
Carol G. Chitko-McKown ◽  
Larry A. Kuehn ◽  
...  
Keyword(s):  
Blood Cell ◽  
Dna Extraction ◽  
White Blood Cell ◽  
Univariate Analysis ◽  
White Blood Cells ◽  
Individual Animal ◽  
Blood Samples ◽  
Cell Counts ◽  
Blood Cell Counts ◽  
White Blood Cell Counts

Pooling individual samples prior to DNA extraction can mitigate the cost of DNA extraction and genotyping; however, these methods need to accurately generate equal representation of individuals within pools. The objective of this study was to determine accuracy of pool construction of blood samples based on white blood cell counts compared to two common DNA quantification methods. Fifty individual bovine blood samples were collected, and then pooled with all individuals represented in each pool. Pools were constructed with the target of equal representation of each individual animal based on number of white blood cells, spectrophotometric readings, spectrofluorometric readings, and whole blood volume with 9 pools per method and a total of 36 pools. Pools and individual samples that comprised the pools were genotyped using a commercially available genotyping array. ASReml was used to estimate variance components for individual animal contribution to pools. The correlation between animal contributions between two pools was estimated using bivariate analysis with starting values set to the result of a univariate analysis. Adonis test on distance matrix from the animal correlation showed clustering with method, and higher correlations between methods than within (P < 1 × 10–6). White blood cell count was predictive of sample representation when compared to pooling based on DNA concentration. Therefore, constructing pools using white blood cell counts prior to DNA extraction may reduce cost associated with DNA extraction and genotyping and improve representation of individuals in a pool.

scholarly journals Distribution of leukocyte subpopulation among students threatened by failure

2020 ◽  
Vol 11 (3) ◽  
pp. 3807-3812
Author(s):  
Aziez Chettoum ◽  
Kamilia Guedri ◽  
Zouhir Djerrou ◽  
Rachid Mosbah ◽  
Latifa Khattabi ◽  
...  
Keyword(s):  
Immune System ◽  
White Blood Cells ◽  
Significant Development ◽  
Biological Assays ◽  
Cell Counts ◽  
Student Volunteers ◽  
White Blood Cell Counts ◽  
Academic Year ◽  
The Brain

Psychoneuroimmunology or the study of the relationships between the brain and the immune system is an area of research that has experienced significant development over the decade. Stress does not appear without consequences on the state of health, the role of fears, emotions and significant constraints in the appearance of organic and mental diseases. In this research, we studied the effect of stress and anxiety during exams at the end of the academic year (2018/2019) on the distribution of leukocyte subpopulations and the immune system, questionnaires has been completed by student volunteers, to estimate the anxio-depressive comorbidities through the (HADS) test during and outside exams, and in the same time we asked them for a blood sample the next morning day to carry out some biological assays (CBC). We also found that stress during exams caused a change in the distribution of different types of white blood cells, a total decrease in white blood cell counts with neutropenia and lymphopenia were found in students during exams compared to controls, and an increase in monocyte and other types of polymorphonuclear levels in students during exams compared to controls. Other tests measuring the effects of stress on specific functions of the immune system can be used.

scholarly journals EFFECT OF ZINC ELEMENT AND DEXAMETHASONE ON SOME HEMATOLOGICAL BIOCHEMICAL TESTS IN RABBITS MALE

2016 ◽  
Vol 47 (6) ◽  
Author(s):  
D. S. Dheyab
Keyword(s):  
Blood Cells ◽  
White Blood Cells ◽  
The Body ◽  
Control Group ◽  
Blood Collection ◽  
Biochemical Tests ◽  
Histological Changes ◽  
Spleen Tissue ◽  
Cholesterol Levels ◽  
Short Time

This study was conducted to investigate the effect of zinc in dose 15mg/kg.bw daily  taken by the mouth and dexamethasone 4mgIkg.Bw by injection for 30days on some hematological biochemical tests and some histological changes of liver spleen in male rabbits. Thirty rabbits were used that divided into 3 randomized groups (each group contain 10 male rabbits ). Control group was taken normal food and water, Zinc group that gave zinc at dose of 15mg/kg.BW/daily/oral on 1, 2, 3, 4 weeks. Dexamethasone with zinc group : Employ dexamethasone 4mg/Kg.Bw . I.M dialy for 1 and 2 weeks for experiment and at  3, 4th weeks they gave zn 15mg/lKg.Bw day/orally. Blood samples were taken from the heart directly in 2 and 4weeks to examine packed cell volume (pcv), white blood cells (WBCs), Red blood cells (RBCs) with differential Leuckcyte count.separation blood collection to plasma and examine glucose mg/dl , cholesterol mg/dl. In histological tests, rabbits were killed and separate their organs tissue from the body to examine liver and spleen. The results revealed  a decrease in level of RBCs, pcv after treatment with zinc 15, mg/Kg.Bw orally (zinc group) and increase in WBCs with differential leuckocyte count specially neutrophil cell, while biochemical tests show increase in glucose and cholesterol levels after treatment with dexamethasone 4mglkgBw. I/M seen increase in counts of RBCs , PCV, WBCs and differential lenkocyte count and decrease in glucose with cholesterol parameters, histological changes show change in liver after treatment by dexamethasone 4mglKg.Bw ,spleen tissue seen necrosis and pigmentation with hemorrhage after take dexamethasone 4mglkg in (dexamethasone + zinc group). Results also showed that zinc enhanced the immune system in at normal dose for limited time  because of its effect on other mineral such as copper and causes anemia , while the dexamethasone is a drug used for antianflammatory but for a short time.                                                                                                                           

scholarly journals Anthrax Toxin Characterization

2002 ◽  
Vol 45 (1) ◽  
pp. 3-5 ◽  
Author(s):  
Jiří Patočka ◽  
Miroslav Špliňo
Keyword(s):  
Blood Cells ◽  
Protective Antigen ◽  
Lethal Factor ◽  
White Blood Cells ◽  
The Body ◽  
Anthrax Toxin ◽  
Signaling System ◽  
Animal Cells ◽  
The Third ◽  
Edema Factor

The anthrax toxin comprises three proteins. When they work together, they can kill humans, especially after spores of the bacteria have been inhaled. One anthrax protein, called protective antigen (PA), chaperones the two other toxins into human or animal cells and shields them from the body’s immune system. The second, lethal factor (LF), destroys the white blood cells that hosts send in defence. The third toxin molecule, edema factor (EF), hijacks the signaling system in the body. This disrupts the energy balance of cells and leads to them accumulating fluid and complete destroy of cells.

Direct freezing of whole blood enables analysis of leucocyte markers by flow cytometry: a proof-of-concept study

2021 ◽  
Author(s):  
Pénélope Bourgoin ◽  
Inès Ait Belkacem ◽  
Isabelle Arnoux ◽  
Pierre-Emmanuel Morange ◽  
Fabrice Malergue
Keyword(s):  
Flow Cytometry ◽  
Whole Blood ◽  
Blood Cells ◽  
White Blood Cells ◽  
Proof Of Concept ◽  
Fresh Blood ◽  
Blood Samples ◽  
Step Flow ◽  
Freezing Method ◽  
One Step

Aim: A new one-step flow cytometry procedure has been recently demonstrated for identifying subjects with infections, but only for fresh whole blood samples. The goal of this study was to assess its applicability on frozen samples, by proposing a new method to perform the sample freezing directly and easily. Methods: Fresh blood was tested, then frozen either directly or with dimethylsulfoxide and serum. Common markers of white blood cells as well as infection-related biomarkers were tested. Results: All percentages of leucocyte subsets and levels of infection-related biomarkers were significantly correlated between frozen and fresh samples. Conclusion: The direct freezing method enables an accurate assessment of common cellular sub-populations and of levels of important infectious biomarkers via flow cytometry.

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