AFP


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alpha

 [al´fah]
the first letter of the Greek alphabet, α; used to denote the first position in a classification system; as, in names of chemical compounds, to distinguish the first in a series of isomers, or to indicate the position of substituent atoms or groups; also used to distinguish types of radioactive decay, brain waves or rhythms, adrenergic receptors, and secretory cells that stain with acid dyes, such as the alpha cells of the pancreas.
alpha-adrenergic blocking agent (alpha-blocker) (alpha-blocking agent) any of a group of drugs that selectively inhibit the activity of alpha receptors in the sympathetic nervous system. As with beta-adrenergic blocking agents, alpha-blocking agents compete with the catecholamines at peripheral autonomic receptor sites. This group includes ergot and its derivatives, and phentolamine.
alpha chain disease the most common heavy chain disease, occurring predominantly in young adults in the Mediterranean area, and characterized by plasma cell infiltration of the lamina propria of the small intestine resulting in malabsorption with diarrhea, abdominal pain, and weight loss, or, exceedingly rarely, by pulmonary involvement. The gastrointestinal form is immunoproliferative small intestine disease.
alpha-fetoprotein (AFP) a plasma protein produced by the fetal liver, yolk sac, and gastrointestinal tract and also by hepatocellular carcinoma, germ cell neoplasms, and other cancers in adults; elevated levels may also be seen in benign liver disease such as cirrhosis and viral hepatitis. The serum AFP level is used to monitor the effectiveness of cancer treatment.

During pregnancy some AFP crosses from the amniotic fluid to the mother's blood. If the fetus has a neural tube defect, large amounts of AFP will be found in the amniotic fluid and maternal blood. Blood screening tests for serum AFP can thus be done as a first step in the screening process; if test results are positive, further testing is indicated to diagnose the defect.
alpha particles a type of emission produced by the disintegration of a radioactive substance. The atoms of radioactive elements such as uranium and radium are very unstable, continuously breaking apart with explosive violence and emitting particulate and nonparticulate types of radiation. The alpha particles, consisting of two protons and two neutrons, have an electrical charge and form streams of tremendous energy when they are released from the disintegrating atoms. These streams of energy (alpha rays) can be used in treatment of various malignancies. See also radiation and radiation therapy.

AFP

Abbreviation for α-fetoproteins. See: fetoproteins.

AFP

alpha fetoprotein.

AFP

abbr.
alpha-fetoprotein

AFP

abbreviation for alpha-fetoprotein.

AFP

A gene on chromosome 4q11-q13 that encodes alpha-fetoprotein, a major plasma protein produced by the yolk sac and the liver during foetal life. AFP is regarded as the foetal counterpart of serum albumin and binds copper, nickel, fatty acids and bilirubin; hereditary persistance of alpha-fetoprotein may be found in individuals with no obvious pathology.

Molecular pathology
AFP is elevated in foetuses with neural tube defects, including spina bifida and anencephaly. It is elevated in adults with hepatocellular carcinomas and germ cell tumours.

AFP

α-fetoprotein, see there.

AFP

Abbreviation for alpha(α) fetoprotein test.

AFP (Alpha-fetoprotein)

A tumor marker associated with liver, testicular, and ovarian cancer.
Mentioned in: Tumor Markers

AFP

alpha-fetoprotein.
References in periodicals archive ?
The functions of AFP HRO are the following: (1) manage programs to implement HR/IHL instruments; (2) advocacy, education, and training; (3) policy formulation and integration; (4) monitoring, causing investigation of violations; and (5) liaise with stakeholders for promotion of HR/IHL.
Although there will always be a small degree of conjecture, the expression of AFP solely in the lung lesion and lack of expression in both testes, together with the rise in serum-AFP post orchidectomy and the bilateral adrenal metastases, which are typical for lung tumours, make the unusual situation of a primary AFP-secreting lung lesion with testicular metastases the mostly likely diagnosis.
AFPs commitment to construction and delivery has led to 200 floors being constructed in two years, encompassing some 2.
Clinicians performed AFP screening in 33 study patients.
1259(c)(1), a taxpayer has made a constructive sale of an AFP when he does any of the following:
Six babies with conditions that had been associated previously with abnormal maternal plasma AFP concentradons were excluded.
Since significantly elevated AFP levels have been found in the blood of hypertensive pregnant women, Jacobson teamed up with researchers at the Yale University School of Medicine to examine the breast cancer risk of such women.
PARIS -- In a March 22 letter regarding detained Agence France-Presse journalists Dave Clark and Roberto Schmidt, as well as photographer Joe Raedle from Getty Images, with which AFP collaborates, AFP Chairman Emmanuel Hoog has asked Colonel Moamer Kadhafi "to restore their liberty, in the name of the same freedom of expression and information that you refer to so often.
The AFP Pinnacle grand prize winner will be announced October 18 at the AFP annual conference in Denver.
While treasury management systems contribute to efficiencies in a variety of processes, treasury and financial professionals note that there are areas for improvement, including improved analytics and business intelligence," said Jim Kaitz, president and CEO of AFP.
The Chairman reminded the board that AFP s 2014-2018 development plan calls for annual revenue growth of between 2% and 2.
AFP mRNA was positive preoperatively in 31 patients and at 1 week postoperatively in 30 patients.