| chemotaxis, leukocyte | The movement of leukocytes in response to a chemical concentration gradient or to products formed in an immunologic reaction. (12 Dec 1998) |
|---|---|
| chemothalamectomy | Chemical destruction of a part of the thalamus, usually for relief of pain or dyskinesia. Synonym: chemothalamotomy. Origin: chemo-+ thalamus, + G. Ektome, excision (05 Mar 2000) |
| chemothalamotomy | Chemical destruction of a part of the thalamus, usually for relief of pain or dyskinesia. Synonym: chemothalamotomy. Origin: chemo-+ thalamus, + G. Ektome, excision (05 Mar 2000) |
| chemotherapeutic | Chemotherapeutic agents are those medications that are used to treat various forms of cancer. These medications are given in a particular regimen over a period of weeks. most chemotherapeutic medications have the ability to directly kill cancer cells. For this same reason, these medications can suppress the bone marrow to some degree, lowering white blood cell counts. This results in a condition known as immunosuppression and can place the patient at an increased risk of infection. Examples include busulphan, cisplatin, cyclophosphamide, methotrexate, daunorubicin, doxorubicin, melphalan, vincristine, vinblastine and chlorambucil. See: immunosuppressive agents. (27 Sep 1997) |
| chemotherapeutic agent | Chemotherapeutic agents are those medications that are used to treat various forms of cancer. These medications are given in a particular regimen over a period of weeks. most chemotherapeutic medications have the ability to directly kill cancer cells. For this same reason, these medications can suppress the bone marrow to some degree, lowering white blood cell counts. This results in a condition known as immunosuppression and can place the patient at an increased risk of infection. Examples include busulphan, cisplatin, cyclophosphamide, methotrexate, daunorubicin, doxorubicin, melphalan, vincristine, vinblastine and chlorambucil. See: immunosuppressive agents. (27 Sep 1997) |
| chemotherapeutic index | The ratio of the minimal effective dose of a chemotherapeutic agent to the maximal tolerated dose. Originally used by Ehrlich to express the relative toxicity of a chemotherapeutic agent to a parasite and to its host. (05 Mar 2000) |
| chemotherapeutics | Noun plural but singular or plural in constructions: chemotherapy. (18 Nov 1997) |
| chemotherapy | <pharmacology, oncology> The treatment of disease by means of chemicals that have a specific toxic effect upon the disease producing microorganisms (antibiotics) or that selectively destroy cancerous tissue (anticancer therapy). (12 May 1997) |
| chemotherapy drug sensitivity test | <investigation> A test to assess a cancerous tissue's response and vulnerability to chemotherapy drugs. This test can help predict a patients response to treatment and suggest which drugs may be useful. (16 Dec 1997) |
| chemotherapy, adjuvant | Drug therapy given to augment or stimulate some other form of treatment such as surgery or radiation therapy. Adjuvant chemotherapy is commonly used in the therapy of cancer and can be administered before or after the primary treatment. (12 Dec 1998) |
| chemotic | Relating to chemosis. (05 Mar 2000) |
| chemotransmitter | A chemical substance produced to diffuse and cause responses of neurons or effector cells. (05 Mar 2000) |
| chemotroph | An organism that gets its energy by metabolising organicmaterial taken from other organisms. (09 Oct 1997) |
| chemotrophy | <biochemistry> Systems of metabolism in which energy is derived from endogenous chemical reactions rather than from food or light energy, for example in deep sea hot spring organisms. (18 Nov 1997) |
| chemotropism | <cell biology> Growth or possibly bending of an organism in response to an external chemical gradient. Sometimes used in error when the terms chemotaxis or chemokinesis should have been used. (18 Nov 1997) |