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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

late-phase reaction

Biology; Immunology

In type I immediate hypersensitivity reactions, the late-phase reaction persists and is resistant to treatment with antihistamine.

pulmonary surfactant A

Biology; Immunology

The pulmonary surfactant A and D proteins are members of the pentraxin family that play various roles in the acute-phase response.

immunoglobulin A (IgA)

Biology; Immunology

IgA is the class of immunoglobulin characterized by α heavy chains. IgA antibodies are secreted mainly by mucosal lymphoid tissues.

periarteriolar lymphoid sheath

Biology; Immunology

The periarteriolar lymphoid sheath (PALS) is part of the inner region of the white pulp of the spleen, and contains mainly T cells.

attenuated

Biology; Immunology

Pathogens are said to be attenuated when they can grow in their host and induce immunity without producing serious clinical disease.

conjugate vaccines

Biology; Immunology

Conjugate vaccines are vaccines made from capsular polysaccharides bound to proteins of known immunogenicity, such as tetanus toxoid.

membranous glomerulonephritis

Biology; Immunology

Membranous glomerulonephritis is a disease of the kidneys characterized by proteinuria and heavy deposits of antibody and complement.