Evaluation of the Association of Polymorphisms in the Innate Immune System With the Risk for Blastomycosis Dermatitidis Infection in Patients Not Infected With HIV and Complications Associated With Blastomycosis Dermatitidis Infection - Full Text View

Purpose

Innate immunity plays an important role for fungal recognition and initiation of fungicidal activity. We hypothesize that subtle differences in different molecules of innate immunity may contribute to either the predisposition or clinical course of infection with Blastomycosis dermatitidis. To test this hypothesis, we propose to analyze the allelic frequencies of 15 different genes (mannose binding lectin, Fc-gamma receptor IIa and IIb, Fc-gamma receptors IIIa and IIIb, myeloperoxidase, tumor necrosis factor-alpha and -beta, interleukin 1A and 1B, interleukin-1 receptor antagonist, interleukin-10, NRAMP-1, chitotriosidase, and chemokine receptor 5) and their intragenic polymorphic forms and to compare this data to the incidence and severity of Blastomycosis dermatitidis infection. With this study we hope to identify a group of molecules of innate immunity which influence the risk and severity of invasive Blastomycosis dermatitidis infection.

Condition
Blastomycosis

Study Type:	Observational
Official Title:	Evaluation of the Association of Polymorphisms in the Innate Immune System With the Risk for Blastomycosis Dermatitidis Infection in Patients Not Infected With HIV and Complications Associated With Blastomycosis Dermatitidis Infection

Resource links provided by NLM:

MedlinePlus related topics: Cancer HIV/AIDS

U.S. FDA Resources

Further study details as provided by National Institutes of Health Clinical Center (CC):

Estimated Enrollment:	400
Study Start Date:	July 1998
Primary Completion Date:	June 2007 (Final data collection date for primary outcome measure)

Detailed Description:

Innate immunity plays an important role for fungal recognition and initiation of fungicidal activity. We hypothesize that subtle differences in different molecules of innate immunity may contribute to either the predisposition or clinical course of infection with Blastomycosis Dermatitidis. To test this hypothesis, we propose to analyze the allelic frequencies of 15 different genes (mannose binding lectin, Fc-gamma receptor Ila and IIb, Fc-gamma receptors IIIa and IIIb, myeloperoxidase, tumor necrosis factor-alpha and -beta, interleukin 1A and 1B, interleukin-1 receptor antagonist, interleukin-10, NRAMP-1, chitotriosidase, and chemokine receptor 5) and their intragenic polymorphic forms and to compare this data to the incidence and severity of Blastomycosis Dermatitidis infection. With this study we hope to identify a group of molecules of innate immunity which influence the risk and severity of invasive Blastomycosis Dermatitidis infection.

Eligibility

Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

INCLUSION CRITERIA:

Patients in the database have been confirmed with a diagnosis of Blastomycosis dermatitides infection by a combination of isolation of the yeast form in a diagnostic microbiology laboratory and/or an elevated cryptococcal antigen titer (which is commercially available).

Only patients diagnosed and treated in the United States and Canada will be included in this analysis.

Only patients who are not co-infected with HIV will be included in the study.

Patient samples will be collected and clinical data will be evaluated only after signed consent has been obtained.

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00001702

Locations

United States, Alabama
University of Alabama
Birmingham, Alabama, United States
United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, United States, 20892

Sponsors and Collaborators

National Cancer Institute (NCI)

More Information

Publications:

Bellamy R, Ruwende C, Corrah T, McAdam KP, Whittle HC, Hill AV. Variations in the NRAMP1 gene and susceptibility to tuberculosis in West Africans. N Engl J Med. 1998 Mar 5;338(10):640-4.

Blakemore AI, Tarlow JK, Cork MJ, Gordon C, Emery P, Duff GW. Interleukin-1 receptor antagonist gene polymorphism as a disease severity factor in systemic lupus erythematosus. Arthritis Rheum. 1994 Sep;37(9):1380-5.

Boot RG, Renkema GH, Strijland A, van Zonneveld AJ, Aerts JM. Cloning of a cDNA encoding chitotriosidase, a human chitinase produced by macrophages. J Biol Chem. 1995 Nov 3;270(44):26252-6.

ClinicalTrials.gov Identifier:	NCT00001702 History of Changes
Other Study ID Numbers:	980138, 98-C-0138
Study First Received:	November 3, 1999
Last Updated:	October 7, 2009
Health Authority:	United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):

Genetic
Variant Alleles
Risk Factor
Cancer
Transplantation

Additional relevant MeSH terms:

Blastomycosis
Dermatomycoses
Skin Diseases, Infectious

Infection
Mycoses
Skin Diseases

ClinicalTrials.gov processed this record on February 26, 2013