| lipids and antilipaemic agents | A collective grouping for lipids and substances that maintain normal blood lipid levels. (12 Dec 1998) |
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| antilipaemic agents | Substances that counteract high levels of lipids in the blood. (12 Dec 1998) |
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| membrane lipids | Lipids, predominantly phospholipids, cholesterol and small amounts of glycolipids found in membranes including cellular and intracellular membranes. These lipids may be arranged in bilayers in the membranes with integral proteins between the layers and peripheral proteins attached to the outside. Membrane lipids are required for active transport, several enzymatic activities and membrane formation. (12 Dec 1998) |
| compound lipids | Lipids containing N and P atoms in addition to the usual C, H, and O. Compare: homolipids. Synonym: compound lipids. (05 Mar 2000) |
| simple lipids | Lipids containing only C, H, and O. Compare: heterolipids. Synonym: simple lipids. (05 Mar 2000) |
| lipids | Biological molecules soluble in apolar solvents, but only very slightly soluble in water. They are an heterogenous group (being defined only on the basis of solubility) and include fats, waxes and terpenes. (18 Nov 1997) |
| anti-allergic and respiratory system agents | A collective term for drugs used to treat allergic reactions as well as those drugs that produce an effect on the respiratory system. (12 Dec 1998) |
| antineoplastic and immunosuppressive agents | Collective grouping for substances used to arrest the proliferation of malignant cells and those that suppress the immune response. (12 Dec 1998) |
| carbohydrates and hypoglycaemic agents | A collective term for carbohydrates and agents used to lower the level of glucose in the blood. (12 Dec 1998) |
| haematologic, gastrointestinal, and renal agents | A collective grouping for agents that act on the haematopoietic, gastrointestinal, and renal systems. (12 Dec 1998) |
| neurotransmitters and neurotransmitter agents | A collective grouping for neurotransmitters and substances that act on the neurotransmitter system. (12 Dec 1998) |
| abortifacient agents | Chemical substances that interrupt pregnancy after implantation. (12 Dec 1998) |
| abortifacient agents, non-steroidal | Non-steroidal chemical compounds with abortifacient activity. (12 Dec 1998) |
| abortifacient agents, steroidal | Steroidal compounds with abortifacient activity. (12 Dec 1998) |
| adrenergic agents | Drugs that act on adrenergic receptors or affect the life cycle of adrenergic transmitters. Included here are adrenergic agonists and antagonists and agents that affect the synthesis, storage, uptake, metabolism, or release of adrenergic transmitters. (12 Dec 1998) |
| alkylating agents | Highly reactive chemicals that introduce alkyl radicals into biologically active molecules and thereby prevent their proper functioning. Many are used as antineoplastic agent, but most are very toxic, with carcinogenic, mutagenic, teratogenic, and immunosuppressant actions. They have also been used as components in poison gases. (12 Dec 1998) |