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White Blood Cells (WBC`s) or Leukocytes
White Blood Cells (WBC`s) or Leukocytes

... 1. release enzyme that inhibit inflammation caused by chemicals such as histamine. 2. Release enzymes that kill some parasite so in patients with parasitic infection eosinophils number greatly increased.They release hydrolytic enzymes, reactive oxygen& larvacidal polypeptide. Mast Cells: 1. are heav ...
tuberculin-type hypersensitivity
tuberculin-type hypersensitivity

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AMS_PowerPoint_Haematopoietic_2

... Porth, C.M. 2011. Essentials of Pathophysiology, 3rd edn. ...
Revision Techniques
Revision Techniques

... into a mind map (HINT – the word in the bubble should be the word microbes) There are three types of microbe – virus, fungi and bacteria. Most are harmless but some can cause disease, for example TB is caused by bacteria, athletes’ foot by a fungus and the flu by a virus. Our immune system protects ...
Hypersensitivity Reactions
Hypersensitivity Reactions

... complement protein. These cells are also recognised by macrophages or dendritic cells which act as antigen presenting cells, this causes a B cell response where antibodies are produced against the foreign antigen. An example here is the reaction to penicillin, where the drug can bind to red blood ce ...
Cardiovascular Tissue Engineering
Cardiovascular Tissue Engineering

... As such, the field of tissue engineering has grown to encompass a number of scientific disciplines with the ever-increasing demand for clinical methods to replace and regenerate tissue ...
LAMIQ - Open Medicine
LAMIQ - Open Medicine

... 34 million people living with HIV, with Sub-Saharan Africa being the most heavily affected with 72% of new infections. From: WHO/UNAIDS, 2011 ...
Cytokines and Chemokines
Cytokines and Chemokines

... bacteria. J. Periodont. Res. 31:393-407. Pro-inflammatory cytokines such as interleukin (IL)-1, IL-6, IL-8 and tumor necrosis factor (TNF) are believed to be the major pathological mediators of inflammatory diseases ranging from arthritis to periodontal diseases. It is believed that components of mi ...
Cytokines and Chemokines
Cytokines and Chemokines

... bacteria. J. Periodont. Res. 31:393-407. Pro-inflammatory cytokines such as interleukin (IL)-1, IL-6, IL-8 and tumor necrosis factor (TNF) are believed to be the major pathological mediators of inflammatory diseases ranging from arthritis to periodontal diseases. It is believed that components of mi ...
IMMUNITY
IMMUNITY

... – Protect body from foreign antigens – Identify and destroy potentially harmful cells – Remove cellular debris ...
polychaetes as annelid models to study ecoimmunology of marine
polychaetes as annelid models to study ecoimmunology of marine

... Innate immunity which constituted the most ancient first line of immune protection is vital for invertebrate host defense and has become conserved through the animal kingdom. Even if invertebrates lack such critical elements of adaptive immunity as antibodies and lymphocytes, they can resist infecti ...
Unipotent stem cell
Unipotent stem cell

... • Mature (segmented) granulocyte: cell is mature and looks like normal, mature granulocytes in the blood with lobed nucleus and prominent granules that stain appropriatly for the series . ...
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1 Defenders of the Body 2 Nonspecific Defenses 3 Specific

... Actively acquired immunity – Lifelong immunity developed as a result of an exposure to an antigen – Naturally acquired active immunity • Develops after exposure to antigens in the environment – Induced active immunity ...
Researchers find newly identified immunity
Researchers find newly identified immunity

... Southwestern Medical Center and their collaborators have identified a new innate immunity "We found that beclin 2 can promote the pathway that protects mammals from viral degradation of Kaposi's sarcoma-associated oncogenesis, the process by which viruses cause herpesvirus G protein-coupled receptor ...
Is acetylcholine an autocrine growth factor via the
Is acetylcholine an autocrine growth factor via the

... In the current study, undertaken with a human mesothelial cell line, we addressed the problem whether the cells express MORs, which would be the very first condition in order to explain an adhesion-preventing action of of morphine (cf. Khorram-Manesh et al., 2006). We could confirm such an expressio ...
Food allergies better understood | Laboratory News
Food allergies better understood | Laboratory News

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Regulation NERVOUS CONTROL CHEMICAL CONTROL I. How

... ___________________________________ transmitted to and from the ___________ ________________ when a receptor picks up a stimulus or sends a response ...
PPS - Jacksonville University
PPS - Jacksonville University

... Jacksonville University ...
Viruses, HIV, and Aids
Viruses, HIV, and Aids

... Neutralization: antibodies bind to the surface proteins of a virus or bacterium and block the pathogen from infecting the host cell. Opsonization: the antibodies bound to antigens increase and facilitate phagocytosis. Phagocytosis enable macrophages and dendritic cells to present antigens to and sti ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

Mysteries of the immune system
Mysteries of the immune system

... Our ongoing exposure includes public places, which is what drove the big craze to anti bacterial gels, soaps, etc. This is why I'm so fond of using silver shield gel as a hand sanitizer. I am protected for four hours, and I don't have to worry about passing germs around. A study of DNA collected in ...
The immune system
The immune system

... When things go wrong with the immune system Sometimes the immune system will make a mistake. 1. It may attack your own body as if it were the enemy, eg. insulin dependent diabetes (the type that most often starts in children and young people) is caused by the immune system attacking the cells in the ...
Nucleus
Nucleus

Passive and active immunity
Passive and active immunity

... CD45RO. In the allogeneic setting and when cells are stimulated non-specifically, CB cells per se also produce less cytokine. – Frequency of T cells with the ability to produce TNFα, IFNγ, IL-2, IL-4 is reduced in CB compared to adult blood. This agrees with the observation that CB lymphocytes are n ...
Overview of the Cattle Immune System
Overview of the Cattle Immune System

... This system adapts and builds a precise immune response for each challenge that the animal encounters. However, it takes longer to become effective compared to the innate immune system, sometimes up to several days following the infection. The adaptive system is characterized by production of antibo ...
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Innate immune system



The innate immune system, also known as the nonspecific immune system, is an important subsystem of the overall immune system that comprises the cells and mechanisms that defend the host from infection by other organisms. The cells of the innate system recognize and respond to pathogens in a generic way, but, unlike the adaptive immune system (which is found only in vertebrates), it does not confer long-lasting or protective immunity to the host. Innate immune systems provide immediate defense against infection, and are found in all classes of plant and animal life. They include both humoral immunity components and cell-mediated immunity components.The innate immune system is an evolutionarily older defense strategy, and is the dominant immune system found in plants, fungi, insects, and primitive multicellular organisms.The major functions of the vertebrate innate immune system include: Recruiting immune cells to sites of infection, through the production of chemical factors, including specialized chemical mediators, called cytokines Activation of the complement cascade to identify bacteria, activate cells, and promote clearance of antibody complexes or dead cells The identification and removal of foreign substances present in organs, tissues, the blood and lymph, by specialised white blood cells Activation of the adaptive immune system through a process known as antigen presentation Acting as a physical and chemical barrier to infectious agents.↑ ↑ ↑
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