Category: G

Endogenous or exogenous substances which inhibit the normal growth of human and animal cells or micro-organisms, as distinguished from those affecting plant growth (plant growth regulators). A substance that hampers the development of an organism is referred to as an inhibitor. This all-encompassing definition encompasses the action of certain fungicides, as well as auto-inhibition by…

Leukocytes with abundant granules in the cytoplasm. They are divided into three groups: neutrophils, eosinophils, and basophils. Phagocytic (scavenging, ingesting) cells that are part of the immune system. When their cell nucleus is segmented into lobes and they have granule-like inclusions within their cytoplasm (the neutrophils, eosinophils, and basophils) they are collectively known as polymorphonuclear…

A glycoprotein of MW 25 kDa containing internal disulfide bonds. It induces the survival, proliferation, and differentiation of neutrophilic granulocyte precursor cells and functionally activates mature blood neutrophils. Among the family of colony-stimulating factors, G-CSF is the most potent inducer of terminal differentiation to granulocytes and macrophages of leukemic myeloid cell lines. A colony stimulating…

The operation of transfer of tissue from one site to another. A method of propagation which involves the uniting of a piece of stem of a desirable plant, the “scion,” to that of a less desirable one, the “stock” or “understock,” to give a stronger root system than the scion would have naturally Many different…

An immune response with both cellular and humoral components, directed against an allogeneic transplant, whose tissue antigens are not compatible with those of the recipient.    

120-kD HIV envelope glycoprotein which is involved in the binding of the virus to its membrane receptor, the CD4 molecule, found on the surface of certain cells in the body.  

The group in which legal authority is vested for the control of health-related institutions and organizations. A common term for the hospital’s governing body, the body which is legally responsible for the hospital’s policies, organization, management, and quality of care. “Board” is short for “board of trustees,” “board of directors,” or “board of governors.” It…

The water-soluble follicle stimulating substance, by some believed to originate in chorionic tissue, obtained from the serum of pregnant mares. It is used to supplement the action of estrogens. A hormone that stimulates the testes and the ovaries to function. Male reproductive hormone: (a) follicle-stimulating hormone (FSH), secreted by the anterior pituitary gland which stimulates…

Pertaining to a gonad.  

Cells of the epithelial lining that produce and secrete mucins. Cells within the epithelial lining of the airways that produce the mucus required for cleaning these passages. A tube-shaped cell in the epithelium which secretes mucus. A column-shaped secretory cell found in the epithelium of the respiratory and intestinal tracts. Goblet cells secrete the principal…