Genetic Factors That Influence Chronic Obstructive Pulmonary Disease in Hispanics
Genetic Epidemiology of COPD in Costa Rica
調査の概要
状態
詳細な説明
DESIGN NARRATIVE:
This study will concentrate on a genetically isolated Hispanic population with a high prevalence of COPD living in the Central Valley of Costa Rica. Nine hundred individuals from descendants of the Costa Rican Central Valley founder population will be enrolled. To identify regions of the genome that are likely to contain genetic determinants of COPD-related phenotypes in this population, the study will collect phenotypic and genotypic data on 30 large families with a history of moderate to severe COPD that have multiple individuals affected with smoking-related airflow obstruction. A genome scan will be conducted on these individuals using short-tandem repeat (STR) markers. Linkage analysis will be performed on 6 COPD-related phenotypes, which will include the following: 1) chronic bronchitis; 2) airflow obstruction; 3) forced expiratory volume in one second (FEV1); 4) FEV1/FVC[forced vital capacity];5) bronchodilator responsiveness; and 6) total serum immunoglobulin E. Within genomic regions demonstrating linkage to COPD-related phenotypes in the genome scan, narrowly spaced STR markers will be genotyped and tested for linkage between these markers and COPD-related phenotypes. Within selected genomic regions, the association will be tested between single nucleotide polymorphisms (SNPs) in candidate genes and COPD-related phenotypes. By enrolling a large number of participants of a genetically isolated population and utilizing a family-based study design, this study should be able to address an important yet unstudied issue: the genetic influences on the expression of the COPD phenotype in Hispanics.
研究の種類
入学 (実際)
連絡先と場所
研究場所
-
-
-
San José、コスタリカ
- Hospital Nacional de Niños
-
-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
説明
Inclusion Criteria:
- COPD
- Reduced FEV1 after administration of bronchodilator (less than or equal to 60% of predicted value)
- At least six great-grandparents born in the Central Valley of Costa Rica
- At least one sibling with a history of smoking (10 or more packs per year)
Exclusion Criteria:
- Chronic respiratory disorder other than COPD (as determined by a questionnaire and high-resolution CT chest scan)
- Severe alpha 1-antitrypsin deficiency
研究計画
研究はどのように設計されていますか?
デザインの詳細
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
|
Genetic factors that influence the development of COPD in Hispanics.
時間枠:Measured through the use of genetic samples
|
Measured through the use of genetic samples
|
協力者と研究者
スポンサー
捜査官
- スタディチェア:Juan C. Celedon, MD, DrPH、University of Pittsburgh
出版物と役立つリンク
一般刊行物
- Hunninghake GM, Weiss ST, Celedon JC. Asthma in Hispanics. Am J Respir Crit Care Med. 2006 Jan 15;173(2):143-63. doi: 10.1164/rccm.200508-1232SO. Epub 2005 Oct 6.
- Brehm JM, Celedon JC. Chronic obstructive pulmonary disease in Hispanics. Am J Respir Crit Care Med. 2008 Mar 1;177(5):473-8. doi: 10.1164/rccm.200708-1274PP. Epub 2007 Nov 20.
- Brehm JM, Hagiwara K, Tesfaigzi Y, Bruse S, Mariani TJ, Bhattacharya S, Boutaoui N, Ziniti JP, Soto-Quiros ME, Avila L, Cho MH, Himes B, Litonjua AA, Jacobson F, Bakke P, Gulsvik A, Anderson WH, Lomas DA, Forno E, Datta S, Silverman EK, Celedon JC. Identification of FGF7 as a novel susceptibility locus for chronic obstructive pulmonary disease. Thorax. 2011 Dec;66(12):1085-90. doi: 10.1136/thoraxjnl-2011-200017. Epub 2011 Sep 15.
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- 1289
- R01HL073373 (米国 NIH グラント/契約)
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
肺疾患、閉塞性の臨床試験
-
Taichung Veterans General Hospital完了心毒性 | 非小細胞肺癌(MeSH用語:Carcinoma, Non-Small-Cell Lung) | 薬物関連の副作用および有害反応(MeSH用語) | EGFRチロシンキナーゼ阻害剤台湾
-
Fondazione del Piemonte per l'Oncologia募集乳がん | 卵巣がん | 結腸直腸がん | 黒色腫 (皮膚がん) | 非小細胞肺癌(MeSH用語:Carcinoma, Non-Small-Cell Lung)イタリア