PMID- 26032475 OWN - NLM STAT- MEDLINE DCOM- 20160407 LR - 20150713 IS - 2213-2201 (Electronic) VI - 3 IP - 4 DP - 2015 Jul-Aug TI - Suspecting and Testing for Alpha-1 Antitrypsin Deficiency-An Allergist's and/or Immunologist's Perspective. PG - 506-11 LID - S2213-2198(15)00179-8 [pii] LID - 10.1016/j.jaip.2015.04.005 [doi] AB - Alpha-1 antitrypsin deficiency (AATD) is a hereditary, monogenic disorder with no unique clinical features. AATD can be difficult to diagnose as patients commonly present with respiratory symptoms often mistaken for other respiratory syndromes such as asthma or smoking-related chronic obstructive pulmonary disease. In addition, symptoms related to AATD may also affect other organs, including the liver, vasculature, and skin. The severity of AATD varies between individuals, and in severe cases, the irreversible lung damage can develop into emphysema. Early diagnosis is critical to enable the implementation of lifestyle changes and therapeutic options that can slow further deterioration of pulmonary tissue. Once AATD is suspected, a range of tests are available (serum alpha-1 proteinase inhibitor [A1-PI] level measurement, phenotyping, genotyping, gene sequencing) for confirming AATD. Currently, intravenous infusion of A1-PI is the only therapy that directly addresses the underlying cause of AATD, and has demonstrated efficacy in a recent randomized, placebo-controlled trial. This review discusses the etiology, testing, and management of AATD from the allergist's and/or immunologist's perspective. It aims to raise awareness of the condition among physicians who care for people with obstructive lung disorders and are therefore likely to see patients with obstructive lung disease that may, in fact, prove to be AATD. CI - Copyright (c) 2015 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Craig, Timothy J AU - Craig TJ AD - Hershey Medical Center, Penn State University, Hershey, Pa. Electronic address: tcraig@psu.edu. LA - eng PT - Clinical Conference PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20150529 PL - United States TA - J Allergy Clin Immunol Pract JT - The journal of allergy and clinical immunology. In practice JID - 101597220 RN - alpha-1-Antitrypsin Deficiency, Autosomal Recessive SB - IM MH - Allergy and Immunology MH - Humans MH - Physicians MH - Specialization MH - *alpha 1-Antitrypsin Deficiency/diagnosis/etiology/physiopathology/therapy OTO - NOTNLM OT - Alpha-1 antitrypsin deficiency OT - Asthma OT - COPD OT - Diagnosis OT - Emphysema OT - Screening OT - Testing EDAT- 2015/06/03 06:00 MHDA- 2016/04/08 06:00 CRDT- 2015/06/03 06:00 PHST- 2015/02/27 00:00 [received] PHST- 2015/04/16 00:00 [revised] PHST- 2015/04/17 00:00 [accepted] PHST- 2015/06/03 06:00 [entrez] PHST- 2015/06/03 06:00 [pubmed] PHST- 2016/04/08 06:00 [medline] AID - S2213-2198(15)00179-8 [pii] AID - 10.1016/j.jaip.2015.04.005 [doi] PST - ppublish SO - J Allergy Clin Immunol Pract. 2015 Jul-Aug;3(4):506-11. doi: 10.1016/j.jaip.2015.04.005. Epub 2015 May 29.