Description : Answer: b, c, d Eosinophils constitute 1% to 3% of the leukocyte population of the bloodstream. They also reside in tissues and they exhibit phagocytic capabilities. They are less ... the cycle of events that result in recruitment and activation of inflammatory cells at sites of inflammation
Last Answer : Cellular injury from oxidants may be manifest by which of the following? a. Cell membrane lipid peroxidation b. DNA strand breaks c. Cytoskeletal disassembly d. ATP depletion
Description : Following is an example of preformed and not lipid derived mast cell mediator of inflammatory process (a) LTC4 (b) PGD2 (c) PAF (d) Histamine
Last Answer : Ans: D
Description : Acquired immunity consists of humoral immunity maintained by _____ and _____, and cell-mediated immunity controlled by _____ a. T cells, complement, B cells b. T cells, Interleukin, B cells c. B cells, antibodies, T cells d. B cells, histamine, T cells
Last Answer : c. B cells, antibodies, T cells
Description : Cytotoxic T cells release which 2 toxic proteins as they fight target cells? a. histamine and heparin b. perforin and granzymes c. interleukin and interferon d. lysozymes and cytokines
Last Answer : b. perforin and granzymes
Description : There are no preformed stores of the following autacoid/autacoids: A. Prostaglandins B. Leukotrienes C. Angiotensin II D. All of the above
Last Answer : D. All of the above
Description : Which of the following statements regarding cytokines is incorrect? A. Cytokines act directly on target cells and may potentiate the actions of one another. B. Interleukin 1 (IL-1) ... organ dysfunction syndrome because of its multiple actions and the secondary cascades that it stimulates.
Last Answer : Answer: C DISCUSSION: Cytokines are soluble peptide molecules that are synthesized and secreted by a number of cell types in response to injury, inflammation, and infection. Cytokines, which ... is thought to play a central role in the stress response, particularly in response to endotoxemia
Description : Assertion : Histamine is related with allergic and inflamatory reactions Reason : Histamine is a vasodilator
Last Answer : Assertion : Histamine is related with allergic and inflamatory reactions Reason : Histamine is a ... If both the assertion and reason are false
Description : Biologically active metabolites of arachidonic acid include all of the following EXCEPT: C A. Leukotrienes B. Thyromboxane A2 C. Complement D. Prostaglandin
Last Answer : Complement
Description : Which of the following statement(s) is/are true concerning the vascular response to injury? a. Vasoconstriction is an early event in the response to injury b. Vasodilatation is a ... Histamine, prostaglandin E2 (PGE2) and prostacyclin (PGI2) are important mediators of local vasoconstriction
Last Answer : Answer: a After wounding, there is transient vasoconstriction mediated by catecholamines, thromboxane, and prostaglandin F2 (PGF2a). This period of vasoconstriction lasts for only five to ten minutes. Once ... and mast cells and enhance the egress of cells and substrate into the wound and tissue
Description : Following mediators are involved in acute inflammation except (a) Histamine (b) Leukotrienes (c) Interferons (d) Bradykinin
Last Answer : Ans: C
Description : Histamine is involved as a mediator in the following pathological conditon (a) Cocaine (b) Dibucaine (c) Lidocaine (d) Procaine
Last Answer : Ans: B
Description : Histamine is involved as a mediator in the following pathological condition: A. Delayed hypersensitivity reaction B. Inflammation C. Carcinoid syndrome D. Variant angina
Last Answer : B. Inflammation
Description : The following statement about histamine is not correct: A. It is the sole mediator of immediate hypersensitivity reaction B. It plays no role in delayed hypersensitivity reaction C. It serves as a neurotransmitter in the brain D. All types of histamine receptors are G protein coupled receptors
Last Answer : A. It is the sole mediator of immediate hypersensitivity reaction
Description : To activate a bound helper T lymphocyte, the macrophage produces a. Interleukin-1 (IL-1) b. granzymes c. Interferon
Last Answer : a. Interleukin-1 (IL-1)
Description : Virus infected cells produce a set of cytokine proteins called _____ that "alert" surrounding cells to the viral threat. a. Interleukin-1 (IL-1) b. Interferon. c. Toll Like Receptors (TLR) d. Acute Phase Proteins
Last Answer : b. Interferon.
Description : Macrophages are professional antigen- presenting cells. The protein molecule through which theypresent antigen in human is A.actin B.interleukin C.HLA D.CD8
Last Answer : D.CD8
Description : Bacterial opsonization is mediated by? C A. histamine B. prostaglandin C. immunoglobulins D. tumor Necrosis Factor
Last Answer : immunoglobulins
Description : Prolonged airway hyperreactivity is characteristically caused by: A. Histamine B. Prostaglandin E2 C. Platelet activating factor D. Bradykinin
Last Answer : C. Platelet activating factor
Description : Tachyphylaxis to many actions on repeated injection is a feature of the following autacoid: A. Histamine B. 5-Hydroxytryptamine C. Bradykinin D. Prostaglandin E2
Last Answer : B. 5-Hydroxytryptamine
Description : The following are true about chemicals involved in allergic reaction: a. thromboxane -leukocyte activation b. prostaglandin-2 - vasodilatation c. platelet-activating factor - leukocyte activation d. heparin - augments inactivation of prostaglandins
Last Answer : prostaglandin-2 - vasodilatation
Description : In AIDS, the following abnormalities are seen: a. persistent lymphopenia b. decreased interleukin-2 production c. impaired delayed cutaneous hypersensitivity reactions d. all above
Last Answer : all above
Description : What cells release histamine during allergic responses?
Last Answer : Need answer
Description : Hashimoto disease and Graves‘ disease are similar in that both a. Affect the thyroid gland. b. Affect the red blood cells. c. Are forms of cellular hypersensitivity? d. Are accompanied by histamine release.
Last Answer : b. Affect the red blood cells.
Description : During the course of a cellular hypersensitivity a. Antibodies react with antigens in tissues. b. Serotonin and histamine are released by cells. c. Immune complexes form on blood vessel surfaces. d. A skin thickening called an induration may form.
Last Answer : b. Serotonin and histamine are released by cells.
Description : ________ bind to_________ on microbial invaders. a. Toll-like receptors; PAM Ps b. Mast cells; histamine c. Toll-like receptors; complement d. Macrophages; defensins
Last Answer : a. Toll-like receptors; PAM Ps
Description : Which of the following is NOT a type I hypersensitivity? A. Food Allergies B. Contact Dermatitis C. Allergic Rhinitis D. Exercise Induced Allergies
Last Answer : B. Contact Dermatitis
Description : The presence of IgM antibodies in the blood indicates a. An early stage of an infection. b. A chronic infection. c. An allergic reaction is occurring. d. Humoral immunity has yet to start.
Last Answer : a. An early stage of an infection.
Description : What is the advantage of a recombinant subunit vaccine? a. it can't cause disease b. adverse reactions are rare because only the important subunits of the antigen are included c. the vaccine is not made from blood fragments d. A-C are correct
Last Answer : d. A-C are correct
Description : Cytokines which play an important role in the metabolic response to injury include: a. Tumor necrosis factor—a (TNF) b. Interleukin-1 (IL-1) c. Interleukin-6 (IL-6) d. Interferon-g
Last Answer : Answer: a, b, c, d TNF or cachetin is considered the primary mediator of the systemic effects of endotoxin, producing anorexia, fever, tachypnea, and tachycardia at low doses and hypotension, ... infected sells. IFN-g has the ability to upregulate the number of TNF receptors on various cell types
Description : The following are true about cell-mediated immunity: a. antigen-specific function is the role of the T-lymphocytes b. cell-mediated immunity can activate the complement system c. it is ... the delayed hypersensitivity reaction. d. Gamma interferon is an important mediator of B-cell activation.
Last Answer : cell-mediated immunity can activate the complement system
Description : How to get rid of Cat dander, so that somebody allergic to cat's wouldn't get any allergic reactions?
Last Answer : The thing that is really bad with cats and cat allergies and cat smells is their hair. There's a product called the Furminator that you can get for cats or dogs (specific kind for each) that ... core. Googling for it brings up images of pets with a-pets-worth-of-recently-removed-excess-hair nearby.
Description : Does anybody know any home remedies for allergic reactions?
Last Answer : answer:lay off the crack? when you say you itch every night do you mean every night like just at night time or when your in bed? If its in bed you may be allergic to dust mites or something along those lines. Try washing your sheets/blankets or better yet get a hypo allergic sheets/pillow covers.
Description : do gunnera have properties that cause allergic reactions?
Last Answer : Need Answer
Description : Which is produced during allergic reactions? -Do You Know?
Last Answer : answer:
Description : Are you not worried about the allergic reactions if having the vaccine against COVID-19?
Last Answer : Current covid vaccines have to go through a lot of testing. Tests on different blood types Tests on different people with varying metabolism And that's not all you may also have to consider the ... say brazil and their environment condition. So the vaccine needs year worth of testing in that case.
Description : Assertion . Mast cells in human body release excessive amount of inflammatory chemicals which cause allergic reactions. Reason . Allergens in the envi
Last Answer : Assertion . Mast cells in human body release excessive amount of inflammatory chemicals which cause ... If both the assertion and reason are false
Description : Which WBCs resist infections and are also associated with allergic reactions `:-`
Last Answer : Which WBCs resist infections and are also associated with allergic reactions `:-` A. Lymphocytes B. Neutrophils C. Eosinophils D. Monocytes
Description : Allergic reactions?
Last Answer : DefinitionAllergic reactions are sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the ... in people who have a family history of allergies.Substances that don't bother most peop
Description : Allergic reactions are mediated by (A) IgA (B) IgG (C) IgD (D) IgE
Last Answer : Answer : D
Description : Fibrinolytic therapy is based on activation of plasminogen, the inactive proteolytic enzyme of plasma that binds to fibrin during the formation of thrombosis. Activation of plasminogen to plasmin results ... TPA all exceed 30 minutes d. Streptokinase is significantly cheaper than urokinase or TPA
Last Answer : Answer: a, b, d Streptokinase is a bacterial protein produced by group C b-hemolytic streptococci. It is therefore antigenic in humans and can be associated with allergic reaction in ... one agent over the other. Streptokinase however, is markedly less expensive than either urokinase or TPA
Description : The most common cause of fatal transfusion reactions is: A. An allergic reaction. B. An anaphylactoid reaction. C. A clerical error. D. An acute bacterial infection transmitted in blood.
Last Answer : Answer: C DISCUSSION: The most common cause of fatalities related to transfusion reactions result from ABO-incompatible transfusion related to clerical error. Most such reactions occur if a ... with platelet concentrates maintained at or near room temperature. Fortunately, such reactions are rare
Description : H1 antihistaminics are beneficial in (a) All types of allergic disorders (b) Certain type I allergic reactions only (c) Anaphylactic shock(d) Bronchial asthma
Description : Immediate allergy reaction (type I allergic reaction) is: a) An allergic or immune response that begins within a period lasting from a few minutes to about an hour after exposure to an ... cause tissue damage e) It occurs during blood transfusion reactions and in hemolytic disease of the newborn.
Last Answer : Ans: A
Description : An advantge of betamethasone acetate over betamethasone sodium phosphate is (a) Fewer allergic reactions (b) Prompter action (c) More sustained action (d) Greater solubility (e) There is no advantage
Description : Where do most allergic reactions occur ?
Last Answer : Most of them occur on mucous membrane. Allergens enter the body by the process of inhalation or ingestion.
Description : Which is produced during allergic reactions?
Last Answer : Histamine
Description : Tick infestations could lead to_______ D A. paralyses B. allergic reactions C. toxicities D. All of these
Last Answer : All of these