Abstract
In 11 128 apparently healthy 18-year-old men screened for alpha 1-antitrypsin deficiency (AATD) 44 had an alpha 1-antitrypsin (AAT) level of 50% or less of the transferrin reference. In 42 of the 44 the Pi types were: five Pi Z, 10 Pi SZ, three Pi MZ, one presumptive Pi M-, one Pi FM, and 22 Pi M. Probably all Pi Z and most of the Pi SZ subjects were identified. The transferrin reference, however, is probably less reliable for the study of this age group, and alpha 1-antichymotrypsin may provide a more valid reference for the AAT screening procedure. In the clinical investigation the additive risk factor of smoking was discovered in eight of 15 individuals with AATD Pi Z or Pi SZ. We believe screening for Pi Z and probably also Pi SZ AATD should be done before young people start smoking or train for jobs in polluted environments.
Full text
PDF



Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Erikson S. Proteases and protease inhibitors in chronic obstructive lung disease. Acta Med Scand. 1978;203(6):449–455. [PubMed] [Google Scholar]
- Jeppsson J. O., Laurell C. B., Fagerhol M. Properties of isolated human alpha1-antitrypsins of Pi types M, S and Z. Eur J Biochem. 1978 Feb 1;83(1):143–153. doi: 10.1111/j.1432-1033.1978.tb12078.x. [DOI] [PubMed] [Google Scholar]
- Larsson C., Dirksen H., Sundström G., Eriksson S. Lung function studies in asymptomatic individuals with moderately (Pi SZ) and severely (Pi Z) reduced levels of alpha1-antitrypsin. Scand J Respir Dis. 1976;57(6):267–280. [PubMed] [Google Scholar]
- Larsson C., Eriksson S., Dirksen H. Smoking and intermediate alpha1-antitrypsin deficiency and lung function in middle-aged men. Br Med J. 1977 Oct 8;2(6092):922–925. doi: 10.1136/bmj.2.6092.922. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Larsson C. Natural history and life expectancy in severe alpha1-antitrypsin deficiency, Pi Z. Acta Med Scand. 1978;204(5):345–351. doi: 10.1111/j.0954-6820.1978.tb08452.x. [DOI] [PubMed] [Google Scholar]
- Laurell C. B. A screening test for 1 -antitrypsin deficiency. Scand J Clin Lab Invest. 1972 May;29(3):247–248. doi: 10.3109/00365517209080237. [DOI] [PubMed] [Google Scholar]
- Laurell C. B. Electroimmuno assay. Scand J Clin Lab Invest Suppl. 1972;124:21–37. doi: 10.3109/00365517209102748. [DOI] [PubMed] [Google Scholar]
- Lieberman J. Alpha 1 -antitrypsin deficiency. Med Clin North Am. 1973 May;57(3):691–706. doi: 10.1016/s0025-7125(16)32268-4. [DOI] [PubMed] [Google Scholar]
- Lieberman J. Elastase, collagenase, emphysema, and alpha1-antitrypsin deficiency. Chest. 1976 Jul;70(1):62–67. doi: 10.1378/chest.70.1.62. [DOI] [PubMed] [Google Scholar]
- Pierce J. A., Jeppsson J. O., Laurell C. B. alpha-1 Antitrypsin phenotypes determined by isoelectric focusing of the cysteine-antitrypsin mixed disulfide in serum. Anal Biochem. 1976 Jul;74(1):227–241. doi: 10.1016/0003-2697(76)90327-4. [DOI] [PubMed] [Google Scholar]
- Sharp H. L. The current status of alpha-1-antityrpsin, a protease inhibitor, in gastrointestinal disease. Gastroenterology. 1976 Apr;70(4):611–621. [PubMed] [Google Scholar]
- Sveger T. Liver disease in alpha1-antitrypsin deficiency detected by screening of 200,000 infants. N Engl J Med. 1976 Jun 10;294(24):1316–1321. doi: 10.1056/NEJM197606102942404. [DOI] [PubMed] [Google Scholar]