Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. How can the immune memory lead to the efficacy of vaccines and also produce allergies?
Vaccines are controlled inoculations of fragments of inactive infectious agents or of infectious agents to induce the primary immune response the formation of specific memory B lymphocytes against the antigen. consequently the organism produces immunoglobulins and becomes prepared to destroy antigens when exposed to new infections by those agents.
In allergies the humoral immune system is sensitized (makes specific memory B lymphocytes and antibodies) against some common environmental substances wrongly recognized as antigens. For instance, dust particles, pollen-derived substances, compounds present in medicines or in foods, and so on. may be recognized as antigens triggering the creating and primary response an immune memory against them that then become causes of allergy and the more the individual is exposed to those substances the more intense is the immune reaction.
The IgE antibodies that cause allergy bind to receptors of leukocytes called mastocytes whose cytoplasm is full of histamine granules and the antibody-mastocyte bond causes these cells to release a great amount of histamine in the circulation, generating the allergic symptoms and signs and stimulating inflammation. For this reason allergy is treated with antihistamines drugs that block the histaminic reaction. Exacerbated allergic reactions, for instance, in hypersensitivity to some medicines like sulfas and penicillin, may cause anaphylactic shock a severe clinical condition that sometimes leads to death.
Q. What do ADP and ATP mean? What are the functions of these molecules for the cellular energetic metabolism? ADP is an short form of adenosine diphosphate, two molecules of ph
Fluoride Inhibitor Fluoride inhibits enolase enzyme involved in the conversion of 2-phosphoglerate to phosphoenol pyruvate.
Some organisms contain enzymes that condense a fatty alcohol and a fatty acid to generate wax esters. Draw decanol, plamitic acid (C16:0 fatty acid) and the resulting wax ester gen
Explain Micronutrient deficiencies during kwashiorkor? Almost all the children manifest anaemia (due to iron deficiency) of some degree. Eye signs of vitamin A' deficiency are
Phases of Menstrual Cycle - Reproduction Four phases of the menstrual cycle are usually distinguished: the menstrual, proliferative (follicular), ovulatory and progestational
Explain about Atrial Septal Defect (ASD) ? ASD occurs as an isolated anomaly in 5- 10 per cent of all CHDs. These communications occur in four sites i.e. in the central portion
Q. Write the definition of counselling? The counselling process, involves various steps in a sequence as given below: 1. Rapport-Building 2. Locating the Problem 4. Pl
Flexibility Exercises and Examples In flexibility exercises, movable joints allow one or more of the following types of movements. Flexion - Flexion decreases the joint ang
What are the causes of endodontic pain? Lesions in retreatment cases called post endodontic diseases. Reasons of Endo retreatment; = reasons of failure: - Signs or symptoms of
State the goals of Neuropsychological assessment Neuropsychological assessment therefore has twin goals. i) The first goal is to recognize the disrupted psychological compo
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd