Oxidative stress and serum α1 — Antitrypsin in smokers

Oxidative stress in COPD patients, smokers, and non-smokers.

BACKGROUND Oxidative stress has been known for having a key role in pathogenesis of many diseases. The aim of this study was to investigate the oxidative stress and also the relationship between antioxidant system statuses and lung function in patients with COPD and smokers and non-smokers subjects. METHODS Thirty subjects with COPD, 30 smokers, and 30 healthy non-smokers participated in this...

α1-Antitrypsin deficiency: count me in please!

Respiratory medicine is facing formidable challenges in the 21st century. Indeed, most respiratory medical research is becoming interconnected, translational and transnational, all embedded within so-called “planetary health” [1]. However, renewing estimates and trends from classical, descriptive epidemiology, including how many patients of a given condition are around, and how many are expecte...

Circulating polymers in α1-antitrypsin deficiency.

Most individuals carry two wild-type M alleles of the SERPINA1 gene which encodes a1-antitrypsin. 95% of severe deficiency of a1-antitrypsin is associated with the Z allele (Glu342Lys; denoted PiZZ in the homozygote), and with the retention and polymerisation of a1-antitrypsin within hepatocytes [1]. These polymers are contained within periodic acid–Schiff-positive, diastase-resistant inclusion...

Ventilation inhomogeneity in α1-antitrypsin deficient emphysema

Serum levels and genotype distribution of α1-antitrypsin in the general population.

RATIONALE α1-Antitrypsin (AAT) deficiency is one of the commonest rare respiratory disorders worldwide. Diagnosis, assessment of risk for developing chronic obstructive pulmonary disease (COPD), and management of replacement therapy require the availability of precise and updated ranges for protein serum levels. OBJECTIVE This paper aims to provide ranges of serum AAT according to the main ge...