BioScience Dictionary

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Immune system 61 times.

Displaying results 1 to 10.

1. Acquired immunodeficiency syndrome (AIDS)
A collection of disorders that develop as a result of infection by the human immunodeficiency virus (HIV) , which attacks helper T cells , crippling the immune system and greatly reducing the body's ability to fight infection; results in premature death brought about by various diseases that overwhelm the compromised immune system.

2. Active immunity (active immunization)
An organism's resistance to disease or infection, developed because the organism's immune system has produced antibodies after an infection or innoculation.

3. Adenosine deaminase deficiency (ADA)
Inherited disorder caused by insufficient adenosine deaminase activity, resulting in a compromised immune system .

4. African sleeping sickness
A disease affecting humans and other mammals in central Africa that is caused by the parasitic protozoa ns Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense and is transmitted by the tsetse fly. Symptoms include fever, chills, headache, vomiting, pain in the extremities, lymph gland enlargement, anemia, depression, fatigue, coma, and eventually death if left untreated. The trypanosome is able to evade the host's immune system by frequently changing the protein s on its outer surface, by which the immune system identifies intruders.

5. Aggressin
A term for a protein produced by a pathogenic microbe which aids its spread in the host by inhibiting the host's immune system (specifically the response by phagocyte s).

6. AIDS (acquired immunodeficiency syndrome, HIV, human immunodeficiency virus)
Acronym for Acquired Immunodeficiency Syndrome. An epidemic disease caused by an infection by human immunodeficiency virus (HIV-1), a retrovirus that causes immune system failure and debilitation and is often accompanied by cancers such as Kaposi's sarcoma as well as secondary infections such as tuberculosis . AIDS is spread through direct contact with bodily fluids.

7. AIDS-related complex (ARC)
A set of symptoms, such as lymph node enlargement, fever, loss of weight, diarrhea, and minor opportunistic diseases associated with a weakened immune system, which indicates a less severe form of infection by the HIV virus than AIDS itself. In some cases this is diagnosed as a precursor to AIDS. Also known as "AIDS-related condition" or "AIDS-related syndrome".

8. Allograft immunity (transplant rejection, homograft rejection)
The recipient's immune system rejects tissue grafted from a genetically dissimilar donor (of the same species ) and stages an immune attack against it.

9. Alloimmunization
Immunization against allogenic antigen s; immunization against substances that can provoke an immune system response which are produced by genetically dissimilar members of the same species .

10. Anergy
* immunology - The failure of an organism's immune system to respond to an antigen or an antibody . * medicine - An aberrant shortage of energy.