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  AIDS



AIDS

   A medical condition where the immune system cannot function properly and protect the body from disease. As a result, the body cannot defend itself against infections (like pneumonia). Aids is caused by the Human Immunodifiency Virus (HIV). This virus is spread through direct contact with the blood and body fluids of an infected individual. High-risk activities include unprotected sexual intercourse and intravenous drug use (sharing needles). There is no cure for AIDS; however, research efforts are on going to develop a vaccine.

RELATED TERMS
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Medical
Pertaining to Medicine.

Condition
The term "condition" has a number of biomedical meanings including the following: 1.An unhealthy state, such as in "this is a progressive condition." 2.A state of fitness, such as "getting into condition." 3.Something that is essential to the occurrence of something else; essentially a "precondition." 4.As a verb: to cause a change in something so that a response that was previously associated with a certain stimulus becomes associated with another stimulus; to condition a person, as in behavioral conditioning.

Immune
Resistant to a particular disease.

Disease
Illness or sickness often characterized by typical patient problems (symptoms) and physical findings (signs). Disruption sequence: The events that occur when a fetus that is developing normally is subjected to a destructive agent such as the rubella (German measles) virus.

Aids
A medical condition where the immune system cannot function properly and protect the body from disease. As a result, the body cannot defend itself against infections (like pneumonia). Aids is caused by the Human Immunodifiency Virus (HIV). This virus is spread through direct contact with the blood and body fluids of an infected individual. High-risk activities include unprotected sexual intercourse and intravenous drug use (sharing needles). There is no cure for AIDS; however, research efforts are on going to develop a vaccine.

Virus
Ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein.

Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.

Sexual
Pertaining to sex or, more particularly, the stimulation, responsiveness, and functions of the sex organs either alone or with one or more partners.

Intercourse
Connection or interaction between people. In sexual intercourse, the connection is usually defined as being between two people. It is erroneously restricted to putting the penis into the vagina (or anus) or the vagina (or anus) onto the penis (penovaginal or penoanal intercourse, respectively). The entire sexual interaction between the partners constitutes sexual intercourse. 2. Connection or interaction between people. In sexual intercourse, the connection is usually defined as being between two people. It is erroneously defined as putting the penis into the vagina (penovaginal intercourse), for the entire sexual interaction between the partners constitutes sexual intercourse.

Intravenous
Introducing a fluid into the bloodstream through a vein (usually in the patient's forearm).

Cure
1. To heal, to make well, to restore to good health. Cures are easy to claim and, all too often, difficult to confirm. 2. A time without recurrence of a disease so that the risk of recurrence is small, as in the 5-year cure rate for malignant melanoma. 3. Particularly in the past, a course of treatment.

AIDS
A medical condition where the immune system cannot function properly and protect the body from disease. As a result, the body cannot defend itself against infections (like pneumonia). Aids is caused by the Human Immunodifiency Virus (HIV). This virus is spread through direct contact with the blood and body fluids of an infected individual. High-risk activities include unprotected sexual intercourse and intravenous drug use (sharing needles). There is no cure for AIDS; however, research efforts are on going to develop a vaccine.

Efforts
Expenditure of energy by skeletal muscles. Intensity of exertion may be measured by rate of oxygen consumption, heat produced, or heart rate. Perceived exertion, a psychological measure of exertion, is included.

Vaccine
A preparation, often of living weakened microorganisms, that is introduced into the body to produce immunity to a specific disease by causing the formation of antibodies.



SIMILAR TERMS
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Astigmatism
Astigmatism is caused by an uneven or asymmetrical curvature of the cornea, which prevents the eye from focusing clearly at any distance. Astigmatism causes certain amounts of distortion or pitched images because of the uneven bending of the light rays entering the eye.

Amniocentesis
Prenatal diagnostic procedure in which a small amount of amniotic fluid is withdrawn through a needle inserted through a pregnant woman's abdominal wall into the uterus, then examined in a laboratory either to detect genetic abnormalities in a fetus or for other purposes such as father identification.

Acne
Is a common inflammatory disease of the facial skin seen most frequently between the ages of 10 and 25 years and characterized by blackheads, whiteheads and blemishes composed of papules and pustules. Acne is an inflammatory disease of the sebaceous glands, the glands that produce sebum. Acne usually affects the face, back, and chest. In severe cases it can develop into cysts and nodules that can result in scarring. While its cause is unknown, it is most often associated with hormonal activity within teenagers. In severe cases a person should consult with a dermatologist for a specific acne treatment.

Anxiety
A psychological and/or biological response to stress. Feelings of anxiety involve discomforting apprehension or concern, which may include symptoms such as cognitive difficulties, hypersensitivity, dizziness, muscular weakness, breathing difficulties, irregular heart beat, sweating, and sensations of fear. Typically, anxiety is a natural and healthy response to life experiences. However, exaggerated or chronic anxiety often indicates an anxiety disorder. Anxiety can be produced by external stress (exogenous anxiety) or internal stress (endogenous anxiety).

Adrenocortical carcinoma
Adrenocortical carcinoma is a carcinoma of the cortex (outer layer) of the adrenal gland. While most tumors of the adrenal cortex are benign (adenomas) and only occasionally cause Cushing's syndrome, the malignant form makes up about 3% of all cortical tumors and requires surgery and sometimes chemotherapy. Excess cortisol production may require suppression with ketoconazole or metyrapone. Production of aldosterone or androgens by carcinomas is extremely rare.

AIDS

Anal cancer
Colorectal cancer includes cancerous growths in the colon, rectum and appendix.It is the third most common form of cancer and the second leading cause of death among cancers in the Western world. Many colorectal cancers are thought to arise from polyps in the colon. These mushroom-like growths are usually benign, but some may develop into cancer over time. Diagnosis is by colonoscopy. Therapy is usually through surgery, with many cases also requiring chemotherapy.

Angina
A recurring pain or discomfort in the chest that happens when some part of the heart does not receive enough blood. It is a common symptom of coronary heart disease, which occurs when vessels that carry blood to the heart become narrowed and blocked due to atherosclerosis. Angina feels like a pressing or squeezing pain, usually in the chest under the breast bone, but sometimes in the shoulders, arms, neck, jaws, or back. Angina is usually is brought on by exertion, and relieved within a few minutes by resting or by taking prescribed angina medicine. Commonly called chest pain, heart pain or angina pectoris.

Astrocytoma
A nervous system tumor that grows from astrocytes (astrocytomas are a type of glial cell, glial cells are the supporting cells of the nervous system). They can occur in children and young adults and sometimes in older people. Astrocytomas can sometimes become large before causing symptoms. A diagnosis is made either after surgical resection or with a guided (stereotactic) biopsy. Treatment can consist of surgical excision, radiation therapy or chemotherapy. Some patients with minimal symptoms may be observed with serial imaging studies.

Abscesses
A collection of pus collected in a cavity formed by the tissue on the basis of an infectious process (usually caused by bacteria or parasites) or other foreign materials (bullet wounds etc). It is a defensive reaction of the tissue to prevent the spread of infectious materials to the other parts of the body.

Arthritis
Inflammation of a joint, usually accompanied by pain, swelling, and stiffness, and resulting from infection, trauma, degenerative changes, metabolic disturbances, or other causes. Arthritis occurs in various forms, such as the arthritis associated with infections, osteoarthritis, or rheumatoid arthritis. Many forms of vasculitis can also be associated with arthritis.

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