reagin

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re·a·gin

(rē-ā′jĭn)

1. An antibody found in the blood of individuals having a genetic predisposition to allergies.

2. A substance present in the blood of individuals having a positive serological test for syphilis.

[reag(ent) + -in.]

re′a·gin′ic (rē′ə-jĭn′ĭk) adj.

re′a·gin′i·cal·ly adv.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

reagin

(ˈrɪədʒɪn)

(Biochemistry) immunol a type of antibody that is formed against an allergen and is attached to the cells of a tissue. The antigen–antibody reaction that occurs on subsequent contact with the allergen causes tissue damage, leading to the release of histamine and other substances responsible for an allergic reaction

[C20: from German reagieren to react + -in]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

re•a•gin

(riˈeɪ dʒɪn, -gɪn)

n.

1. an antibody formed in response to syphilis in various blood tests for the disease.

2. an antibody found in certain human allergies, as hay fever and asthma.

[1910–15; < German Reagin=reag(ieren) to react + -in -in¹]

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Noun

reagin - an immunoglobulin E that is formed as an antibody against allergens (such as pollen); attaches to cell membranes causing the release of histamine and other substances responsible for the local inflammation characteristic of an allergy

IgE, immunoglobulin E - one of the five major classes of immunoglobulins; present primarily in the skin and mucous membranes

Translations

re·a·gin

n. reagina, anticuerpo usado en el tratamiento de alergias que estimula la producción de histamina.

English-Spanish Medical Dictionary © Farlex 2012

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References in periodicals archive ?

At diagnosis, all three women had a strongly positive Treponema pallidum particle agglutination assay, a high rapid plasma reagin, and a positive syphilis IgM assay.

British pediatricians: Raise awareness of congenital syphilis

Laboratory test results were negative for rapid plasma reagin, fluorescent treponemal antibody absorption, tuberculosis (Quantiferon-Gold TB; Quest Diagnostics, https://www.questdiagnostics.com), angiotensin-converting enzyme, rheumatoid factor, antinuclear antibody, and human leukocyte antigen B27.

Gordonia bronchialis--Associated Endophthalmitis, Oregon, USA

(11) A quantitative, nontreponemal test such as the rapid plasma reagin (RPR) or the Venereal Disease Research Laboratory (VDRL) will be positive in most infants if exposed through the placenta, but antibodies will disappear in uninfected infants by 6 months of age.

Newborn with desquamating rash: The patient's age and the appearance of the lesions pointed us to the proper diagnosis in this case

Multivariable logistic regression results demonstrated that gestational age >36 weeks at the time of maternal syphilis diagnosis, higher maternal titers of rapid plasma reagin (RPR) and higher Treponema pallidum particle agglutination assay (TPPA) titers are risk factors for congenital syphilis.

Risk Factors for Congenital Syphilis Transmitted from Mother to Infant--Suzhou, China, 2011-2014

The results of Treponema pallidum particle assay, rapid plasma reagin test, and antibodies to human immunodeficiency virus, hepatitis B virus, and hepatitis C virus were all negative.

Candida Balanitis with Hyperplastic Plaque Mimicking Vascular Neoplasm

At the time of diagnosis, syphilis IgG was also positive with a Rapid Plasma Reagin (RPR) titer of 1: 128, indicating active infection.

Repeat Intravitreal Dexamethasone Implant for Refractory Cystoid Macular Edema in Syphilitic Uveitis

She had a serum rapid plasma reagin titer of 1: 1024.

Rare Case of Four Osseous Lesions of the Skull in a Patient with Secondary Syphilis

The mother did not have a venereal disease research laboratory (VDRL) test or rapid plasma reagin (RPR) test during the pregnancy.

A Case of Congenital Syphilis Presenting with Unusual Skin Eruptions

Demographic profile, sexual behaviour pattern and clinical features, Rapid plasma reagin test and HIV antibody test results, Treatment given and followup were analysed from the individual STI/RTI patient wise records used in STI clinic.

SEXUAL RISK BEHAVIOUR AND SEXUALLY TRANSMITTED INFECTIONS IN ADOLESCENTS ATTENDING STI CLINIC

ELISA for HIV 1 and 2 and rapid plasma reagin (RPR) test were done in all cases.

Changing trend in sexually transmitted infections among males in a tertiary care centre from Eastern India

The patientwas found to have a CD4 count of 101 cells/[mm.sup.3] (22%), an HIV viral load of 2,735,060 copies/mL, a reactive treponemal antibody, and a positive rapid plasma reagin (RPR) titer at 1:64.