Biology

Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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Biology > Immunology

tolerance

Biology; Immunology

Antigen-specific unresponsiveness of B or T cells.

toxic shock syndrome

Biology; Immunology

The systemic reaction produced by the toxin derived from the bacterium (cf2) Staphylococcus aureus ; the toxin acts as a superantigen, which activates a high proportion of CD4 + ...

toxoid

Biology; Immunology

A nontoxic derivative of a toxin used as an immunogen for the induction of antibodies capable of cross-reacting with the toxin.

transplantation

Biology; Immunology

Grafting solid tissue (such as a kidney or heart) or cells (particularly bone marrow) from one individual to another.

tuberculin test

Biology; Immunology

Antigens derived the organism causing tuberculosis are injected subcutaneously; individuals who have been exposed to the organism and those who have been previously vaccinated ...

tumor infiltrating lymphocyte (TIL)

Biology; Immunology

Mononuclear cells derived from the inflam matory infiltrate of solid tumors.

tumor necrosis factor (TNF)

Biology; Immunology

A cytokine with various actions including the selective killing of tumor cells; toxicity may be the result of the production of free radicals following the binding of ...