Alpha 1-antitrypsin rare variants' distribution in a group of 196 families with developmental malformations of newborns was investigated. Significantly increased frequencies of rare variants were noted in groups of probands and their mothers, as compared to the control groups. Preferential transmission of rare alleles from mothers to probands is demonstrated.
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Nat Commun
January 2025
University/BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK.
Corticosteroid binding globulin (CBG; SERPINA6) binds >85% of circulating glucocorticoids but its influence on their metabolic actions is unproven. Targeted proteolytic cleavage of CBG by neutrophil elastase (NE; ELANE) significantly reduces CBG binding affinity, potentially increasing 'free' glucocorticoid levels at sites of inflammation. NE is inhibited by alpha-1-antitrypsin (AAT; SERPINA1).
View Article and Find Full Text PDFFEBS J
January 2025
Physics, Department of Molecular and Translational Medicine, University of Brescia, Italy.
Neutrophil elastase (NE) is released by activated neutrophils during an inflammatory response and exerts proteolytic activity on elastin and other extracellular matrix components. This protease is rapidly inhibited by the plasma serine protease inhibitor alpha-1-antitrypsin (AAT), and the importance of this protective activity on lung tissue is highlighted by the development of early onset emphysema in individuals with AAT deficiency. As a serpin, AAT presents a surface-exposed reactive centre loop (RCL) whose sequence mirrors the target protease specificity.
View Article and Find Full Text PDFJ Intern Med
January 2025
Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden.
Objective: To estimate the incidence, prevalence, and outcomes of patients with diagnosed alpha-1-antitrypsin deficiency (AATD) in Sweden, 2002-2020.
Study Design And Setting: The Swedish National Patient Registry was utilized to identify patients with a first diagnosis of AATD between 2002 and 2020. Each patient was matched with up to 10 comparators from the general population.
J Clin Med
December 2024
Evaluation Service of the Canarian Health Service, Research Network on Chronicity, Primary Care and Health Promotion (RICAPPS), 38001 Santa Cruz de Tenerife, Spain.
Alpha-1 antitrypsin deficiency (AATD) is a genetic condition that predisposes a person to certain diseases over their lifetime, mainly including lung disease (in the form of emphysema) and liver disease (liver cirrhosis). Quality of life questionnaires are instruments designed to quantify the deterioration of a patient's health. : This study aimed to assess whether certain quality of life tests that are routinely used in clinical practice can be useful for patients with AATD.
View Article and Find Full Text PDFJ Intern Med
December 2024
Department of Clinical Biochemistry, Zealand University Hospital, Køge, Denmark.
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