Population Genetic Screening for Alpha1-Antitrypsin Deficiency in a High-Prevalence Area

Background: Current guidelines for α1-antitrypsin deficiency (AATD) state that adult population screening should only be done in high-risk areas. Up-to-date genetic methods are always recommended. Objectives: To determine the prevalence of AATD in a suspected high-risk area by population screening,...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Respiration 2011-01, Vol.82 (5), p.418-425
Hauptverfasser: Corda, Luciano, Medicina, Daniela, La Piana, Giuseppe Emanuele, Bertella, Enrica, Moretti, Giovanni, Bianchi, Luca, Pinelli, Valentina, Savoldi, Gianfranco, Baiardi, Paola, Facchetti, Fabio, Gatta, Nuccia, Annesi-Maesano, Isabella, Balbi, Bruno
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 425
container_issue 5
container_start_page 418
container_title Respiration
container_volume 82
creator Corda, Luciano
Medicina, Daniela
La Piana, Giuseppe Emanuele
Bertella, Enrica
Moretti, Giovanni
Bianchi, Luca
Pinelli, Valentina
Savoldi, Gianfranco
Baiardi, Paola
Facchetti, Fabio
Gatta, Nuccia
Annesi-Maesano, Isabella
Balbi, Bruno
description Background: Current guidelines for α1-antitrypsin deficiency (AATD) state that adult population screening should only be done in high-risk areas. Up-to-date genetic methods are always recommended. Objectives: To determine the prevalence of AATD in a suspected high-risk area by population screening, applying new genetic analyses and comparing the prevalence of liver and lung abnormalities in subjects with or without AATD. Methods: Adult residents of Pezzaze, a village in an Italian alpine valley, voluntarily participated in the screening, and were examined for: nephelometric α1-antitrypsin (AAT) serum level, DNA analysis (mutagenic polymerase chain reaction and restriction fragment length polymorphism tests for Z and S AATD causative mutations, and denaturing high-performance liquid chromatography and/or direct gene sequencing if needed), serum aspartate and alanine transaminases, a respiratory questionnaire and the Medical Research Council dyspnea index scale. The prevalence of AATD was compared with that expected in Italy (Hardy-Weinberg equilibrium), and transaminases and the prevalence of respiratory symptoms were compared between study groups. Results: Of 1,353 residents, 817 (60.4%) participated; 67 (8.2%) had low AAT serum levels (
doi_str_mv 10.1159/000325067
format Article
fullrecord <record><control><sourceid>proquest_pasca</sourceid><recordid>TN_cdi_pascalfrancis_primary_24603161</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>898508405</sourcerecordid><originalsourceid>FETCH-LOGICAL-c431t-e86388b351cba9e1cc46aceec3fa3ab4aee1e878135ccf642981fa41b66389a93</originalsourceid><addsrcrecordid>eNpd0d-L1DAQB_AgireePvguUgQRH6qZ5scmj-XUW2HBAxV8C9M43c3ZTXtJe7D_vV123QOfQobPzDB8GXsJ_AOAsh8556JSXC8fsQXISpRcKP2YLTivVLm0Ai7Ys5xvOQdlTPWUXVQgl9KCXrBfN_0wdTiGPhbXFGkMvvjuE1EMcVO0fSrqbtgilHUcw5j2Qw6x-ERt8IGi3xfzD4tV2GzLm0T32M1FKupE-Jw9abHL9OL0XrKfXz7_uFqV62_XX6_qdemlgLEko4UxjVDgG7QE3kuNnsiLFgU2EomAzNKAUN63WlbWQIsSGj33WbTikr0_zt1i54YUdpj2rsfgVvXaHWqcaylByHuY7bujHVJ_N1Ee3S5kT12HkfopO2ON4kZyNcs3_8nbfkpxPsRZ4LLiVuiH1T71OSdqz_uBu0Mw7hzMbF-fBk7Njn6f5b8kZvD2BDB77NqE0Yf84KTmAvThhldH9wfThtIZnPb8BWLOm-k</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>910420936</pqid></control><display><type>article</type><title>Population Genetic Screening for Alpha1-Antitrypsin Deficiency in a High-Prevalence Area</title><source>MEDLINE</source><source>Karger Journals</source><source>Alma/SFX Local Collection</source><creator>Corda, Luciano ; Medicina, Daniela ; La Piana, Giuseppe Emanuele ; Bertella, Enrica ; Moretti, Giovanni ; Bianchi, Luca ; Pinelli, Valentina ; Savoldi, Gianfranco ; Baiardi, Paola ; Facchetti, Fabio ; Gatta, Nuccia ; Annesi-Maesano, Isabella ; Balbi, Bruno</creator><creatorcontrib>Corda, Luciano ; Medicina, Daniela ; La Piana, Giuseppe Emanuele ; Bertella, Enrica ; Moretti, Giovanni ; Bianchi, Luca ; Pinelli, Valentina ; Savoldi, Gianfranco ; Baiardi, Paola ; Facchetti, Fabio ; Gatta, Nuccia ; Annesi-Maesano, Isabella ; Balbi, Bruno</creatorcontrib><description>Background: Current guidelines for α1-antitrypsin deficiency (AATD) state that adult population screening should only be done in high-risk areas. Up-to-date genetic methods are always recommended. Objectives: To determine the prevalence of AATD in a suspected high-risk area by population screening, applying new genetic analyses and comparing the prevalence of liver and lung abnormalities in subjects with or without AATD. Methods: Adult residents of Pezzaze, a village in an Italian alpine valley, voluntarily participated in the screening, and were examined for: nephelometric α1-antitrypsin (AAT) serum level, DNA analysis (mutagenic polymerase chain reaction and restriction fragment length polymorphism tests for Z and S AATD causative mutations, and denaturing high-performance liquid chromatography and/or direct gene sequencing if needed), serum aspartate and alanine transaminases, a respiratory questionnaire and the Medical Research Council dyspnea index scale. The prevalence of AATD was compared with that expected in Italy (Hardy-Weinberg equilibrium), and transaminases and the prevalence of respiratory symptoms were compared between study groups. Results: Of 1,353 residents, 817 (60.4%) participated; 67 (8.2%) had low AAT serum levels (&lt;90 mg/dl); 118 were carriers of AATD-associated alleles, 4 (0.5%) homozygotes or compound heterozygotes (1 Z, 1 S, 2 ZP brescia ), 114 (14%) heterozygotes (46 Z, 52 S, 9 P brescia , 4 M wurzburg , 2 I, 1 P lowell ). The prevalence and frequency of all AATD-related alleles was higher than expected for Italy (p &lt; 0.001). There were no differences in symptoms of respiratory disease and transaminases between individuals with normal and low serum AAT. Conclusion: The screening design is one of the main strengths of this study. The large number of mostly asymptomatic individuals with AATD identified suggests that in high-risk areas adult population screening programs employing the latest genetic methods are feasible. Early recognition of individuals at risk means primary or secondary prevention measures can be taken.</description><identifier>ISSN: 0025-7931</identifier><identifier>EISSN: 1423-0356</identifier><identifier>DOI: 10.1159/000325067</identifier><identifier>PMID: 21474916</identifier><identifier>CODEN: RESPBD</identifier><language>eng</language><publisher>Basel, Switzerland: Karger</publisher><subject>alpha 1-Antitrypsin - blood ; alpha 1-Antitrypsin - genetics ; alpha 1-Antitrypsin - metabolism ; alpha 1-Antitrypsin Deficiency - complications ; alpha 1-Antitrypsin Deficiency - epidemiology ; alpha 1-Antitrypsin Deficiency - genetics ; Biological and medical sciences ; Chromatography, High Pressure Liquid ; Clinical Investigations ; DNA Mutational Analysis ; Errors of metabolism ; Genetic disorders ; Genetic Predisposition to Disease ; Genetic Testing ; Humans ; Italy - epidemiology ; Life Sciences ; Liver ; Liver Diseases - epidemiology ; Liver Diseases - etiology ; Liver Diseases - genetics ; Lung Diseases - epidemiology ; Lung Diseases - etiology ; Lung Diseases - genetics ; Lungs ; Male ; Mass Screening ; Medical sciences ; Medical screening ; Metabolic diseases ; Middle Aged ; Mutation ; Phenotype ; Pneumology ; Prevalence ; Proteins and glycoproteins ; Risk Factors ; Santé publique et épidémiologie ; Surveys and Questionnaires</subject><ispartof>Respiration, 2011-01, Vol.82 (5), p.418-425</ispartof><rights>2011 S. Karger AG, Basel</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011 S. Karger AG, Basel.</rights><rights>Copyright (c) 2011 S. Karger AG, Basel</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c431t-e86388b351cba9e1cc46aceec3fa3ab4aee1e878135ccf642981fa41b66389a93</citedby><cites>FETCH-LOGICAL-c431t-e86388b351cba9e1cc46aceec3fa3ab4aee1e878135ccf642981fa41b66389a93</cites><orcidid>0000-0002-6340-9300 ; 0000-0001-8697-6896</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,2429,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=24603161$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21474916$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.sorbonne-universite.fr/hal-00644134$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Corda, Luciano</creatorcontrib><creatorcontrib>Medicina, Daniela</creatorcontrib><creatorcontrib>La Piana, Giuseppe Emanuele</creatorcontrib><creatorcontrib>Bertella, Enrica</creatorcontrib><creatorcontrib>Moretti, Giovanni</creatorcontrib><creatorcontrib>Bianchi, Luca</creatorcontrib><creatorcontrib>Pinelli, Valentina</creatorcontrib><creatorcontrib>Savoldi, Gianfranco</creatorcontrib><creatorcontrib>Baiardi, Paola</creatorcontrib><creatorcontrib>Facchetti, Fabio</creatorcontrib><creatorcontrib>Gatta, Nuccia</creatorcontrib><creatorcontrib>Annesi-Maesano, Isabella</creatorcontrib><creatorcontrib>Balbi, Bruno</creatorcontrib><title>Population Genetic Screening for Alpha1-Antitrypsin Deficiency in a High-Prevalence Area</title><title>Respiration</title><addtitle>Respiration</addtitle><description>Background: Current guidelines for α1-antitrypsin deficiency (AATD) state that adult population screening should only be done in high-risk areas. Up-to-date genetic methods are always recommended. Objectives: To determine the prevalence of AATD in a suspected high-risk area by population screening, applying new genetic analyses and comparing the prevalence of liver and lung abnormalities in subjects with or without AATD. Methods: Adult residents of Pezzaze, a village in an Italian alpine valley, voluntarily participated in the screening, and were examined for: nephelometric α1-antitrypsin (AAT) serum level, DNA analysis (mutagenic polymerase chain reaction and restriction fragment length polymorphism tests for Z and S AATD causative mutations, and denaturing high-performance liquid chromatography and/or direct gene sequencing if needed), serum aspartate and alanine transaminases, a respiratory questionnaire and the Medical Research Council dyspnea index scale. The prevalence of AATD was compared with that expected in Italy (Hardy-Weinberg equilibrium), and transaminases and the prevalence of respiratory symptoms were compared between study groups. Results: Of 1,353 residents, 817 (60.4%) participated; 67 (8.2%) had low AAT serum levels (&lt;90 mg/dl); 118 were carriers of AATD-associated alleles, 4 (0.5%) homozygotes or compound heterozygotes (1 Z, 1 S, 2 ZP brescia ), 114 (14%) heterozygotes (46 Z, 52 S, 9 P brescia , 4 M wurzburg , 2 I, 1 P lowell ). The prevalence and frequency of all AATD-related alleles was higher than expected for Italy (p &lt; 0.001). There were no differences in symptoms of respiratory disease and transaminases between individuals with normal and low serum AAT. Conclusion: The screening design is one of the main strengths of this study. The large number of mostly asymptomatic individuals with AATD identified suggests that in high-risk areas adult population screening programs employing the latest genetic methods are feasible. Early recognition of individuals at risk means primary or secondary prevention measures can be taken.</description><subject>alpha 1-Antitrypsin - blood</subject><subject>alpha 1-Antitrypsin - genetics</subject><subject>alpha 1-Antitrypsin - metabolism</subject><subject>alpha 1-Antitrypsin Deficiency - complications</subject><subject>alpha 1-Antitrypsin Deficiency - epidemiology</subject><subject>alpha 1-Antitrypsin Deficiency - genetics</subject><subject>Biological and medical sciences</subject><subject>Chromatography, High Pressure Liquid</subject><subject>Clinical Investigations</subject><subject>DNA Mutational Analysis</subject><subject>Errors of metabolism</subject><subject>Genetic disorders</subject><subject>Genetic Predisposition to Disease</subject><subject>Genetic Testing</subject><subject>Humans</subject><subject>Italy - epidemiology</subject><subject>Life Sciences</subject><subject>Liver</subject><subject>Liver Diseases - epidemiology</subject><subject>Liver Diseases - etiology</subject><subject>Liver Diseases - genetics</subject><subject>Lung Diseases - epidemiology</subject><subject>Lung Diseases - etiology</subject><subject>Lung Diseases - genetics</subject><subject>Lungs</subject><subject>Male</subject><subject>Mass Screening</subject><subject>Medical sciences</subject><subject>Medical screening</subject><subject>Metabolic diseases</subject><subject>Middle Aged</subject><subject>Mutation</subject><subject>Phenotype</subject><subject>Pneumology</subject><subject>Prevalence</subject><subject>Proteins and glycoproteins</subject><subject>Risk Factors</subject><subject>Santé publique et épidémiologie</subject><subject>Surveys and Questionnaires</subject><issn>0025-7931</issn><issn>1423-0356</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNpd0d-L1DAQB_AgireePvguUgQRH6qZ5scmj-XUW2HBAxV8C9M43c3ZTXtJe7D_vV123QOfQobPzDB8GXsJ_AOAsh8556JSXC8fsQXISpRcKP2YLTivVLm0Ai7Ys5xvOQdlTPWUXVQgl9KCXrBfN_0wdTiGPhbXFGkMvvjuE1EMcVO0fSrqbtgilHUcw5j2Qw6x-ERt8IGi3xfzD4tV2GzLm0T32M1FKupE-Jw9abHL9OL0XrKfXz7_uFqV62_XX6_qdemlgLEko4UxjVDgG7QE3kuNnsiLFgU2EomAzNKAUN63WlbWQIsSGj33WbTikr0_zt1i54YUdpj2rsfgVvXaHWqcaylByHuY7bujHVJ_N1Ee3S5kT12HkfopO2ON4kZyNcs3_8nbfkpxPsRZ4LLiVuiH1T71OSdqz_uBu0Mw7hzMbF-fBk7Njn6f5b8kZvD2BDB77NqE0Yf84KTmAvThhldH9wfThtIZnPb8BWLOm-k</recordid><startdate>20110101</startdate><enddate>20110101</enddate><creator>Corda, Luciano</creator><creator>Medicina, Daniela</creator><creator>La Piana, Giuseppe Emanuele</creator><creator>Bertella, Enrica</creator><creator>Moretti, Giovanni</creator><creator>Bianchi, Luca</creator><creator>Pinelli, Valentina</creator><creator>Savoldi, Gianfranco</creator><creator>Baiardi, Paola</creator><creator>Facchetti, Fabio</creator><creator>Gatta, Nuccia</creator><creator>Annesi-Maesano, Isabella</creator><creator>Balbi, Bruno</creator><general>Karger</general><general>S. Karger AG</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RQ</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>K9.</scope><scope>KB0</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>MBDVC</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>U9A</scope><scope>7X8</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-6340-9300</orcidid><orcidid>https://orcid.org/0000-0001-8697-6896</orcidid></search><sort><creationdate>20110101</creationdate><title>Population Genetic Screening for Alpha1-Antitrypsin Deficiency in a High-Prevalence Area</title><author>Corda, Luciano ; Medicina, Daniela ; La Piana, Giuseppe Emanuele ; Bertella, Enrica ; Moretti, Giovanni ; Bianchi, Luca ; Pinelli, Valentina ; Savoldi, Gianfranco ; Baiardi, Paola ; Facchetti, Fabio ; Gatta, Nuccia ; Annesi-Maesano, Isabella ; Balbi, Bruno</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c431t-e86388b351cba9e1cc46aceec3fa3ab4aee1e878135ccf642981fa41b66389a93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>alpha 1-Antitrypsin - blood</topic><topic>alpha 1-Antitrypsin - genetics</topic><topic>alpha 1-Antitrypsin - metabolism</topic><topic>alpha 1-Antitrypsin Deficiency - complications</topic><topic>alpha 1-Antitrypsin Deficiency - epidemiology</topic><topic>alpha 1-Antitrypsin Deficiency - genetics</topic><topic>Biological and medical sciences</topic><topic>Chromatography, High Pressure Liquid</topic><topic>Clinical Investigations</topic><topic>DNA Mutational Analysis</topic><topic>Errors of metabolism</topic><topic>Genetic disorders</topic><topic>Genetic Predisposition to Disease</topic><topic>Genetic Testing</topic><topic>Humans</topic><topic>Italy - epidemiology</topic><topic>Life Sciences</topic><topic>Liver</topic><topic>Liver Diseases - epidemiology</topic><topic>Liver Diseases - etiology</topic><topic>Liver Diseases - genetics</topic><topic>Lung Diseases - epidemiology</topic><topic>Lung Diseases - etiology</topic><topic>Lung Diseases - genetics</topic><topic>Lungs</topic><topic>Male</topic><topic>Mass Screening</topic><topic>Medical sciences</topic><topic>Medical screening</topic><topic>Metabolic diseases</topic><topic>Middle Aged</topic><topic>Mutation</topic><topic>Phenotype</topic><topic>Pneumology</topic><topic>Prevalence</topic><topic>Proteins and glycoproteins</topic><topic>Risk Factors</topic><topic>Santé publique et épidémiologie</topic><topic>Surveys and Questionnaires</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Corda, Luciano</creatorcontrib><creatorcontrib>Medicina, Daniela</creatorcontrib><creatorcontrib>La Piana, Giuseppe Emanuele</creatorcontrib><creatorcontrib>Bertella, Enrica</creatorcontrib><creatorcontrib>Moretti, Giovanni</creatorcontrib><creatorcontrib>Bianchi, Luca</creatorcontrib><creatorcontrib>Pinelli, Valentina</creatorcontrib><creatorcontrib>Savoldi, Gianfranco</creatorcontrib><creatorcontrib>Baiardi, Paola</creatorcontrib><creatorcontrib>Facchetti, Fabio</creatorcontrib><creatorcontrib>Gatta, Nuccia</creatorcontrib><creatorcontrib>Annesi-Maesano, Isabella</creatorcontrib><creatorcontrib>Balbi, Bruno</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Career &amp; Technical Education Database</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Research Library</collection><collection>Research Library (Corporate)</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Respiration</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Corda, Luciano</au><au>Medicina, Daniela</au><au>La Piana, Giuseppe Emanuele</au><au>Bertella, Enrica</au><au>Moretti, Giovanni</au><au>Bianchi, Luca</au><au>Pinelli, Valentina</au><au>Savoldi, Gianfranco</au><au>Baiardi, Paola</au><au>Facchetti, Fabio</au><au>Gatta, Nuccia</au><au>Annesi-Maesano, Isabella</au><au>Balbi, Bruno</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Population Genetic Screening for Alpha1-Antitrypsin Deficiency in a High-Prevalence Area</atitle><jtitle>Respiration</jtitle><addtitle>Respiration</addtitle><date>2011-01-01</date><risdate>2011</risdate><volume>82</volume><issue>5</issue><spage>418</spage><epage>425</epage><pages>418-425</pages><issn>0025-7931</issn><eissn>1423-0356</eissn><coden>RESPBD</coden><abstract>Background: Current guidelines for α1-antitrypsin deficiency (AATD) state that adult population screening should only be done in high-risk areas. Up-to-date genetic methods are always recommended. Objectives: To determine the prevalence of AATD in a suspected high-risk area by population screening, applying new genetic analyses and comparing the prevalence of liver and lung abnormalities in subjects with or without AATD. Methods: Adult residents of Pezzaze, a village in an Italian alpine valley, voluntarily participated in the screening, and were examined for: nephelometric α1-antitrypsin (AAT) serum level, DNA analysis (mutagenic polymerase chain reaction and restriction fragment length polymorphism tests for Z and S AATD causative mutations, and denaturing high-performance liquid chromatography and/or direct gene sequencing if needed), serum aspartate and alanine transaminases, a respiratory questionnaire and the Medical Research Council dyspnea index scale. The prevalence of AATD was compared with that expected in Italy (Hardy-Weinberg equilibrium), and transaminases and the prevalence of respiratory symptoms were compared between study groups. Results: Of 1,353 residents, 817 (60.4%) participated; 67 (8.2%) had low AAT serum levels (&lt;90 mg/dl); 118 were carriers of AATD-associated alleles, 4 (0.5%) homozygotes or compound heterozygotes (1 Z, 1 S, 2 ZP brescia ), 114 (14%) heterozygotes (46 Z, 52 S, 9 P brescia , 4 M wurzburg , 2 I, 1 P lowell ). The prevalence and frequency of all AATD-related alleles was higher than expected for Italy (p &lt; 0.001). There were no differences in symptoms of respiratory disease and transaminases between individuals with normal and low serum AAT. Conclusion: The screening design is one of the main strengths of this study. The large number of mostly asymptomatic individuals with AATD identified suggests that in high-risk areas adult population screening programs employing the latest genetic methods are feasible. Early recognition of individuals at risk means primary or secondary prevention measures can be taken.</abstract><cop>Basel, Switzerland</cop><pub>Karger</pub><pmid>21474916</pmid><doi>10.1159/000325067</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-6340-9300</orcidid><orcidid>https://orcid.org/0000-0001-8697-6896</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0025-7931
ispartof Respiration, 2011-01, Vol.82 (5), p.418-425
issn 0025-7931
1423-0356
language eng
recordid cdi_pascalfrancis_primary_24603161
source MEDLINE; Karger Journals; Alma/SFX Local Collection
subjects alpha 1-Antitrypsin - blood
alpha 1-Antitrypsin - genetics
alpha 1-Antitrypsin - metabolism
alpha 1-Antitrypsin Deficiency - complications
alpha 1-Antitrypsin Deficiency - epidemiology
alpha 1-Antitrypsin Deficiency - genetics
Biological and medical sciences
Chromatography, High Pressure Liquid
Clinical Investigations
DNA Mutational Analysis
Errors of metabolism
Genetic disorders
Genetic Predisposition to Disease
Genetic Testing
Humans
Italy - epidemiology
Life Sciences
Liver
Liver Diseases - epidemiology
Liver Diseases - etiology
Liver Diseases - genetics
Lung Diseases - epidemiology
Lung Diseases - etiology
Lung Diseases - genetics
Lungs
Male
Mass Screening
Medical sciences
Medical screening
Metabolic diseases
Middle Aged
Mutation
Phenotype
Pneumology
Prevalence
Proteins and glycoproteins
Risk Factors
Santé publique et épidémiologie
Surveys and Questionnaires
title Population Genetic Screening for Alpha1-Antitrypsin Deficiency in a High-Prevalence Area
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T00%3A19%3A14IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pasca&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Population%20Genetic%20Screening%20for%20Alpha1-Antitrypsin%20Deficiency%20in%20a%20High-Prevalence%20Area&rft.jtitle=Respiration&rft.au=Corda,%20Luciano&rft.date=2011-01-01&rft.volume=82&rft.issue=5&rft.spage=418&rft.epage=425&rft.pages=418-425&rft.issn=0025-7931&rft.eissn=1423-0356&rft.coden=RESPBD&rft_id=info:doi/10.1159/000325067&rft_dat=%3Cproquest_pasca%3E898508405%3C/proquest_pasca%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=910420936&rft_id=info:pmid/21474916&rfr_iscdi=true