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Allergic Reaction, Hypersensitivity

Allergic Reaction, Hypersensitivity

 

Allergic Reaction, Hypersensitivity
Image Number: 118-115
Dimensions: 1200 X 1200
Media Used: Digital Photoshop
Formats Available: Whatever required
Title: Allergic Reaction, Hypersensitivity
Customization: Available
Image Description:  Allergic Reaction. Type 1 hypersensitivity is an allergic reaction provoked by reexposure to a specific type of antigen referred to as an allergen.[3] Exposure may be by ingestion, inhalation, injection, or direct contact. The difference between a normal immune response and a type I hypersensitive response is that plasma cells secrete IgE. This class of antibodies binds to Fc receptors on the surface of tissue mast cells and blood basophils. Mast cells and basophils coated by IgE are "sensitized." Later exposure to the same allergen, cross-links the bound IgE on sensitized cells resulting in degranulation and the secretion of pharmacologically active mediators such as [[mastcell ]], leukotriene, and prostaglandin that act on the surrounding tissues. The principal effects of these products are vasodilation and smooth-muscle contraction. The reaction may be either local or systemic. Symptoms vary from mild irritation to sudden death from anaphylactic shock. Treatment usually involves epinephrine, antihistamines, and corticosteroids. If the entire body gets involved, then anaphylaxis can take place; an acute, systemic reaction that can prove fatal.

© Catherine Twomey
Portfolio
Artist/Company Bio:
Professional yet creative. Detailed yet capable of understanding and illustrating the most complex concept in the most straightforward way. Deadline oriented and accurate. Producer of some of the most beautifully colored and rendered work found today. Catherine Twomey is a Board Certified member of the Association of Medical Illustrators and a Founding member of the Illustrators Partnership of America. She has had her own successful business creating art for science and the healthcare industry for over 20 years. She has received many Awards of Excellence from the RX/Art Directors Club in New York City, the Association of Medical Illustrators and numerous other venues. Estimates are provided without charge. The stock section of Indexed Visuals carries 75 of Catherine's images available for licensing. Most images are produced in Photoshop layers, making it possible to modify images to fit your needs. Catherine's website at http://www.artistsart.com provides more samples and information. Catherine is a graduate of the Medical Illustration/Biomedical Visualization Program of the University of Illinois, B.S. in Biocommunication Arts/Medical Illustration, including U. of I. Medical School Sciences: human gross anatomy, physiology, neuroanatomy, histology, embryology, pathology. She also has a Masters Degree from Northern Illinois University Graduate School, M.S. in Art Education, Summa Cum Laude. Catherine provides her services to biotech and pharmaceutical companies, attorneys, major medical publishers of textbooks and journals, and consumer publications. Her illustrations have appeared worldwide, from every WalMart to the NBC Home show to the largest medical convention, RSNA (Radiogical Society of North America).

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Additional Related Images to:
Allergic Reaction, Hypersensitivity


  View Image #118-115 Allergic Reaction, Hypersensitivity #118-115  
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Allergic Reaction. Type 1 hypersensitivity is an allergic reaction provoked by reexposure to a specific type of antigen referred to as an allergen.[3] Exposure may be by ingestion, inhalation, injection, or direct contact. The difference between a normal immune response and a type I hypersensitive response is that plasma cells secrete IgE. This class of antibodies binds to Fc receptors on the surface of tissue mast cells and blood basophils. Mast cells and basophils coated by IgE are "sensitized." Later exposure to the same allergen, cross-links the bound IgE on sensitized cells resulting in degranulation and the secretion of pharmacologically active mediators such as [[mastcell ]], leukotriene, and prostaglandin that act on the surrounding tissues. The principal effects of these products are vasodilation and smooth-muscle contraction. The reaction may be either local or systemic. Symptoms vary from mild irritation to sudden death from anaphylactic shock. Treatment usually involves epinephrine, antihistamines, and corticosteroids. If the entire body gets involved, then anaphylaxis can take place; an acute, systemic reaction that can prove fatal.


  View Image #118-076 Allergy, Hypersensitivity Anaphylactic Response #118-076  
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Allergic Hypersensitivity Response, Anaphylaxic Response. An allergy is an abnormal, acquired sensitivity to a given substance, including pollen, drugs, or numerous environmental triggers. Type I hypersensitivity is characterized by excessive activation of mast cells and basophils by IgE, resulting in a systemic inflammatory response that can result in symptoms as benign as a runny nose, to life-threatening anaphylactic shock and death. Type 1 hypersensitivity is an allergic reaction provoked by reexposure to a specific type of antigen referred to as an allergen. Exposure may be by ingestion, inhalation, injection, or direct contact. The difference between a normal immune response and a type I hypersensitive response is that plasma cells secrete IgE. This class of antibodies binds to Fc receptors on the surface of tissue mast cells and blood basophils. Mast cells and basophils coated by IgE are "sensitized." Later exposure to the same allergen, cross-links the bound IgE on sensitized cells resulting in degranulation and the secretion of pharmacologically active mediators such as histamine, leukotriene, and prostaglandin that act on the surrounding tissues. The principal effects of these products are vasodilation and smooth-muscle contraction. The reaction may be either local or systemic. Symptoms vary from mild irritation to sudden death from anaphylactic shock. Treatment usually involves epinephrine, antihistamines, and corticosteroids.


  View Image #118-077 Allergy, Hypersensitivity Anaphylactic Response #118-077  
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Allergy, Anaphylactic Response. Allergy, Hypersensitivity Anaphylactic Responsecharacterized by excessive activation of mast cells and basophils by IgE, resulting in a systemic inflammatory response that can result in symptoms as benign as a runny nose, to life-threatening anaphylactic shock and death. Type 1 hypersensitivity is an allergic reaction provoked by reexposure to a specific type of antigen referred to as an allergen. Exposure may be by ingestion, inhalation, injection, or direct contact. The difference between a normal immune response and a type I hypersensitive response is that plasma cells secrete IgE. This class of antibodies binds to Fc receptors on the surface of tissue mast cells and blood basophils. Mast cells and basophils coated by IgE are "sensitized." Later exposure to the same allergen, cross-links the bound IgE on sensitized cells resulting in degranulation and the secretion of pharmacologically active mediators such as histamine, leukotriene, and prostaglandin that act on the surrounding tissues. The principal effects of these products are vasodilation and smooth-muscle contraction. The reaction may be either local or systemic. Symptoms vary from mild irritation to sudden death from anaphylactic shock. Treatment usually involves epinephrine, antihistamines, and corticosteroids.


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