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Terms for subject Medical (3207 entries)

symptomatic HIV infection	Stage of HIV infection during which signs or symptoms of the infection begin to appear. The onset of symptoms signals the transition from asymptomatic HIV infection to full blown AIDS.
symptomatic skeletal events	SSE	Adrax
syncytium	A large cell-like structure that forms when many cells fuse together. Syncytia can form during viral infection. In some people with HIV, syncytia formation has been linked to more rapid progression of HIV infection.
syncytium-inducing	SI
syndrome	A group of symptoms or conditions that occur together and are collectively associated with a specific disease or with the risk of developing a specific disease.
Syndrome X	A combination of risk factors that increase the risk for heart disease, diabetes, and stroke. To be diagnosed with metabolic syndrome, a person must have at least three of the following metabolic risk factors: high blood pressure, abdominal obesity, high triglyceride levels, low levels of high-density lipoprotein (HDL) cholesterol, or high fasting blood sugar levels. Use of some antiretroviral (ARV) drugs may cause or worsen risk factors associated with metabolic syndrome.
synergism	An interaction between two or more drugs that causes the total effect of the drugs to be greater than the sum of the individual effects of each drug. A synergistic effect can be beneficial or harmful.
synergy	An interaction between two or more drugs that causes the total effect of the drugs to be greater than the sum of the individual effects of each drug. A synergistic effect can be beneficial or harmful.
synthetic impairment	synthetic dysfunction	Баян
syphilis	An infectious disease caused by the bacterium Treponema pallidum, which is typically transmitted through direct contact with a syphilis sore, usually during vaginal or oral sex. Syphilis can also be transmitted from an infected mother to her child during pregnancy. Syphilis sores occur mainly on the genitals, anus, and rectum, but also on the lips and mouth. Genital sores (chancres) caused by syphilis increase the risk of sexual transmission of HIV
Systematized Nomenclature of Medicine	SNOMED	Alex_O­deychuk
systemic	Pertaining to the entire body. A systemic infection affects the whole body. Systemic drug therapy involves giving a drug that travels through the bloodstream and affects cells throughout the body.
systemic inflammatory response syndrome	SIRS	vlad-a­nd-slav
systol	systolic
T Cell	A type of lymphocyte. There are two major types of T lymphocytes: CD8 cells (cytotoxic T lymphocytes) and CD4 cells (helper T lymphocytes) both T cell types are essential for a healthy immune system. HIV infects and destroys CD4 cells, gradually destroying the immune system.
T Lymphocyte	A type of lymphocyte. There are two major types of T lymphocytes: CD8 cells (cytotoxic T lymphocytes) and CD4 cells (helper T lymphocytes) both T cell types are essential for a healthy immune system. HIV infects and destroys CD4 cells, gradually destroying the immune system.
transfer-RNA	t-PHK
T-cell depletion	The gradual decrease in T-cell function that can occur with chronic infections and cancers. T-cell exhaustion weakens the immune system, making it difficult for the body to fight off infections or kill cancer-causing cells.
T-cell exhaustion	The gradual decrease in T-cell function that can occur with chronic infections and cancers. T-cell exhaustion weakens the immune system, making it difficult for the body to fight off infections or kill cancer-causing cells.
t-PA	tissue plasminogen activator