| Immunoglobulin and IgG subclass levels in the African American and Hispanic populations of east Harlem. | |
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MedLine Citation:
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PMID: 9520518 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: The normal levels of immunoglobulin and IgG subclasses in African American and Hispanic populations are uncertain. To determine immunoglobulin and IgG subclass levels in this community, we measured serum IgG, IgM, and IgA levels along with IgG subclasses in 303 African American and Hispanic patients in a general medical clinic and an allergy/asthma clinic in East Harlem in New York City. METHODS: Prospective measurement of immunoglobulins and IgG subclasses in a general medical clinic and an allergy/asthma clinic in East Harlem. RESULTS: Ten (3.4%) patients had IgG levels below the lower limit of normal values, two (0.07%) patients had IgA levels below the lower limit of normal values, and two (0.07%) patients had an IgM level below the lower limit of normal values. Twenty-four (8.1%) patients had IgG subclass levels below the lower limit of normal values; 1 patient had low levels of IgG1 and IgG3, 5 patients had low levels of IgG2, and 18 patients had low levels of IgG3. Because low IgG subclasses and allergy/asthma appeared to be associated, we compared IgG subclass levels of the patients with and without allergy/asthma. The mean IgG2 level in the patients without allergy/asthma was 425.1 +/- 199.1 mg/dL (p = 0.05) compared with 345.5 +/- 133.1 mg/dL in the allergy/asthma group, the mean IgG3 level in the patients without allergy/asthma was 85.0 +/- 57.1 mg/dL compared with 64 +/- 34.1 mg/dL in the allergy/asthma group (p = 0.016) but there were no differences in IgG1 and IgG4 levels between the two groups. CONCLUSION: Altogether, our data indicate that humoral immunoglobulin and IgG subclass levels below the lowest normal values occur in the low socioeconomic African American and Hispanic populations, especially in patients with asthma in East Harlem. |
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Authors:
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M Lewis; M Miyashiro; J Huton; L Miller; K Sperber |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The Mount Sinai journal of medicine, New York Volume: 65 ISSN: 0027-2507 ISO Abbreviation: Mt. Sinai J. Med. Publication Date: 1998 Mar |
Date Detail:
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Created Date: 1998-04-08 Completed Date: 1998-04-08 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0241032 Medline TA: Mt Sinai J Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 139-45 Citation Subset: IM |
Affiliation:
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Division of Clinical Immunology, Mount Sinai School of Medicine, New York, NY 10029, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult African Continental Ancestry Group* / genetics Aged Asthma / immunology Female Hispanic Americans* / genetics Humans Immunoglobulin A / blood Immunoglobulin G / blood Immunoglobulin M / blood Immunoglobulins / blood*, genetics Male Middle Aged New York City / epidemiology Reference Values Seroepidemiologic Studies Socioeconomic Factors |
| Grant Support | |
ID/Acronym/Agency:
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CA R-29-256990/CA/NCI NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Immunoglobulin A; 0/Immunoglobulin G; 0/Immunoglobulin M; 0/Immunoglobulins |
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