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Conference Paper: Primary Immunodeficiency Referral Network in Asia: Database Review 2001-2009
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TitlePrimary Immunodeficiency Referral Network in Asia: Database Review 2001-2009
 
Other TitlesReferral network in Asia: Database review 2001-2009
 
AuthorsLee, PPW
Chan, KW
Wong, WHS
Ho, MHK
Lee, TL
Lau, YL
 
KeywordsPrimary Immunodeficiency Disorder
Asia
Network
Database
 
Issue Date2010
 
CitationThe 6th Congress of Asian Society for Pediatric Research & 51st Annual Meeting of Taiwan Pediatric Association, Taipei, Taiwan, 15-18 April 2010 [How to Cite?]
 
AbstractOBJECTIVES: Primary immunodeficiency disorders (PIDs) are inborn errors of the immune system. Because of their rarity, multi-center collaboration for pooled data analysis and molecular studies is important to gain meaningful insights about the phenotypic and genetic diversities of PIDs. Since 2001, our unit established collaboration with more than 20 pediatric centers in China and Southeast Asia. It is imperative to organize the data systematically to yield information on epidemiology of PIDs in this region. METHODS: In 2009, a web-based PID patient database was established by HKU, and a full database review was performed. The password-protected database contains clinical and mutation data of patients referred to our unit for genetic diagnosis. All referring doctors have access to information of patients under their care. A web-based referral system was incorporated, where referring doctors can make requests for genetic tests and provide clinical data in a standardized format. Appropriate genetic tests will be performed after detailed discussion, based on patient’s clinical and immunological phenotype. MAIN RESULTS: 619 entries were recorded, including 344 genetic tests performed on 289 patients and 275 carrier screening. Eighty-nine patients (30.8%) were from Hong Kong, 150 (51.9%) were from mainland China while the rest were from Taiwan, Singapore, Malaysia, Thailand, the Philipines and Australia. Mutations in PID genes were confirmed in 176 patients, and 157 carriers were identified. X-linked agammaglobulinemia (n=69), Wiskott-Aldrich syndrome (n=36), X-linked chronic granulomatous disease (CGD, n=22), X-linked hyperIgM (n=15) and X-linked severe combined immunodeficiency (SCID, n=13) constituted majority of cases. We also identified mutations of rare PIDs, such as autosomal-recessive SCID (IL7R, JAK3, RAG2 and DCLRE1C), autosomal-recessive CGD (NCF1, CYBA), defects of IL12/IFN-gamma axis in patients susceptible to mycobacterial infections, FOXP3 mutation in immunodysregulation-polyendocrinopathy-X-linked (IPEX) syndrome, SH2D1A mutations in X-linked lymphoproliferative syndrome, and ITGB2 mutations in leucocyte adhesion deficiency. However, mutations could not be identified in 40% of patients despite distinct clinical and immunological phenotypes. Overall, children with PIDs were diagnosed at a much earlier age in the recent years, but in China many patients with life-threatening PIDs died very young because of limited access to transplant service. CONCLUSION: Establishment of PID database and referral network is an initial step to multi-center collaboration. This constitutes the foundation for PID research and documentation of prevalence, disease burden and outcome of patients with PIDs. Currently we offer genetic tests on 50 PID genes, and more are under development. New genetic technology, such as microarray and exome sequencing will enable efficient ways of molecular diagnosis.
 
DescriptionFree Paper Oral presentation: FREE PAPER 17: FP17-01
 
DC FieldValue
dc.contributor.authorLee, PPW
 
dc.contributor.authorChan, KW
 
dc.contributor.authorWong, WHS
 
dc.contributor.authorHo, MHK
 
dc.contributor.authorLee, TL
 
dc.contributor.authorLau, YL
 
dc.date.accessioned2010-10-31T12:53:00Z
 
dc.date.available2010-10-31T12:53:00Z
 
dc.date.issued2010
 
dc.description.abstractOBJECTIVES: Primary immunodeficiency disorders (PIDs) are inborn errors of the immune system. Because of their rarity, multi-center collaboration for pooled data analysis and molecular studies is important to gain meaningful insights about the phenotypic and genetic diversities of PIDs. Since 2001, our unit established collaboration with more than 20 pediatric centers in China and Southeast Asia. It is imperative to organize the data systematically to yield information on epidemiology of PIDs in this region. METHODS: In 2009, a web-based PID patient database was established by HKU, and a full database review was performed. The password-protected database contains clinical and mutation data of patients referred to our unit for genetic diagnosis. All referring doctors have access to information of patients under their care. A web-based referral system was incorporated, where referring doctors can make requests for genetic tests and provide clinical data in a standardized format. Appropriate genetic tests will be performed after detailed discussion, based on patient’s clinical and immunological phenotype. MAIN RESULTS: 619 entries were recorded, including 344 genetic tests performed on 289 patients and 275 carrier screening. Eighty-nine patients (30.8%) were from Hong Kong, 150 (51.9%) were from mainland China while the rest were from Taiwan, Singapore, Malaysia, Thailand, the Philipines and Australia. Mutations in PID genes were confirmed in 176 patients, and 157 carriers were identified. X-linked agammaglobulinemia (n=69), Wiskott-Aldrich syndrome (n=36), X-linked chronic granulomatous disease (CGD, n=22), X-linked hyperIgM (n=15) and X-linked severe combined immunodeficiency (SCID, n=13) constituted majority of cases. We also identified mutations of rare PIDs, such as autosomal-recessive SCID (IL7R, JAK3, RAG2 and DCLRE1C), autosomal-recessive CGD (NCF1, CYBA), defects of IL12/IFN-gamma axis in patients susceptible to mycobacterial infections, FOXP3 mutation in immunodysregulation-polyendocrinopathy-X-linked (IPEX) syndrome, SH2D1A mutations in X-linked lymphoproliferative syndrome, and ITGB2 mutations in leucocyte adhesion deficiency. However, mutations could not be identified in 40% of patients despite distinct clinical and immunological phenotypes. Overall, children with PIDs were diagnosed at a much earlier age in the recent years, but in China many patients with life-threatening PIDs died very young because of limited access to transplant service. CONCLUSION: Establishment of PID database and referral network is an initial step to multi-center collaboration. This constitutes the foundation for PID research and documentation of prevalence, disease burden and outcome of patients with PIDs. Currently we offer genetic tests on 50 PID genes, and more are under development. New genetic technology, such as microarray and exome sequencing will enable efficient ways of molecular diagnosis.
 
dc.descriptionFree Paper Oral presentation: FREE PAPER 17: FP17-01
 
dc.description.otherThe 6th Congress of Asian Society for Pediatric Research & 51st Annual Meeting of Taiwan Pediatric Association, Taipei, Taiwan, 15-18 April 2010
 
dc.identifier.citationThe 6th Congress of Asian Society for Pediatric Research & 51st Annual Meeting of Taiwan Pediatric Association, Taipei, Taiwan, 15-18 April 2010 [How to Cite?]
 
dc.identifier.hkuros180192
 
dc.identifier.urihttp://hdl.handle.net/10722/126864
 
dc.languageeng
 
dc.relation.ispartofCongress of Asian Society for Pediatric Research
 
dc.subjectPrimary Immunodeficiency Disorder
 
dc.subjectAsia
 
dc.subjectNetwork
 
dc.subjectDatabase
 
dc.title.alternativeReferral network in Asia: Database review 2001-2009
 
dc.titlePrimary Immunodeficiency Referral Network in Asia: Database Review 2001-2009
 
dc.typeConference_Paper
 
<?xml encoding="utf-8" version="1.0"?>
<item><contributor.author>Lee, PPW</contributor.author>
<contributor.author>Chan, KW</contributor.author>
<contributor.author>Wong, WHS</contributor.author>
<contributor.author>Ho, MHK</contributor.author>
<contributor.author>Lee, TL</contributor.author>
<contributor.author>Lau, YL</contributor.author>
<date.accessioned>2010-10-31T12:53:00Z</date.accessioned>
<date.available>2010-10-31T12:53:00Z</date.available>
<date.issued>2010</date.issued>
<identifier.citation>The 6th Congress of Asian Society for Pediatric Research &amp; 51st Annual Meeting of Taiwan Pediatric Association, Taipei, Taiwan, 15-18 April 2010</identifier.citation>
<identifier.uri>http://hdl.handle.net/10722/126864</identifier.uri>
<description>Free Paper Oral presentation: FREE PAPER 17: FP17-01</description>
<description.abstract>OBJECTIVES: Primary immunodeficiency disorders (PIDs) are
inborn errors of the immune system. Because of their rarity,
multi-center collaboration for pooled data analysis and molecular
studies is important to gain meaningful insights about the phenotypic
and genetic diversities of PIDs. Since 2001, our unit established
collaboration with more than 20 pediatric centers in China and
Southeast Asia. It is imperative to organize the data systematically to
yield information on epidemiology of PIDs in this region.
METHODS: In 2009, a web-based PID patient database was
established by HKU, and a full database review was performed. The
password-protected database contains clinical and mutation data of
patients referred to our unit for genetic diagnosis. All referring
doctors have access to information of patients under their care. A
web-based referral system was incorporated, where referring doctors
can make requests for genetic tests and provide clinical data in a
standardized format. Appropriate genetic tests will be performed
after detailed discussion, based on patient&#8217;s clinical and
immunological phenotype.
MAIN RESULTS: 619 entries were recorded, including 344 genetic
tests performed on 289 patients and 275 carrier screening.
Eighty-nine patients (30.8%) were from Hong Kong, 150 (51.9%)
were from mainland China while the rest were from Taiwan,
Singapore, Malaysia, Thailand, the Philipines and Australia.
Mutations in PID genes were confirmed in 176 patients, and 157
carriers were identified. X-linked agammaglobulinemia (n=69),
Wiskott-Aldrich syndrome (n=36), X-linked chronic granulomatous
disease (CGD, n=22), X-linked hyperIgM (n=15) and X-linked
severe combined immunodeficiency (SCID, n=13) constituted
majority of cases. We also identified mutations of rare PIDs, such as
autosomal-recessive SCID (IL7R, JAK3, RAG2 and DCLRE1C),
autosomal-recessive CGD (NCF1, CYBA), defects of
IL12/IFN-gamma axis in patients susceptible to mycobacterial
infections, FOXP3 mutation in
immunodysregulation-polyendocrinopathy-X-linked (IPEX)
syndrome, SH2D1A mutations in X-linked lymphoproliferative
syndrome, and ITGB2 mutations in leucocyte adhesion deficiency.
However, mutations could not be identified in 40% of patients
despite distinct clinical and immunological phenotypes. Overall,
children with PIDs were diagnosed at a much earlier age in the recent
years, but in China many patients with life-threatening PIDs died
very young because of limited access to transplant service.
CONCLUSION: Establishment of PID database and referral
network is an initial step to multi-center collaboration. This
constitutes the foundation for PID research and documentation of
prevalence, disease burden and outcome of patients with PIDs.
Currently we offer genetic tests on 50 PID genes, and more are under
development. New genetic technology, such as microarray and
exome sequencing will enable efficient ways of molecular diagnosis.</description.abstract>
<language>eng</language>
<relation.ispartof>Congress of Asian Society for Pediatric Research</relation.ispartof>
<subject>Primary Immunodeficiency Disorder</subject>
<subject>Asia</subject>
<subject>Network</subject>
<subject>Database</subject>
<title>Primary Immunodeficiency Referral Network in Asia: Database Review 2001-2009</title>
<title.alternative>Referral network in Asia: Database review 2001-2009</title.alternative>
<type>Conference_Paper</type>
<identifier.hkuros>180192</identifier.hkuros>
<description.other>The 6th Congress of Asian Society for Pediatric Research &amp; 51st Annual Meeting of Taiwan Pediatric Association, Taipei, Taiwan, 15-18 April 2010</description.other>
</item>