Validation of the German version of the Asthma Impairment and Risk Questionnaire (AIRQ).

Background: The Asthma Impairment and Risk Questionnaire (AIRQ), a 10-item, equally weighted, yes/no tool assessing symptom impairment and risk of exacerbations in patients with asthma aged ≥12 years, was developed and validated in a US patient population to evaluate varying levels of asthma control. This study aimed to validate the German language version of the AIRQ in patients aged ≥12 years with different levels of asthma control.

Methods: A cross-sectional, observational, multi-centre study comprising a single visit was conducted in multiple specialised asthma centres and general practices in Germany.

Estimate of oxygen consumption and intracellular zinc concentration of human spermatozoa in relation to motility.

Aim: To investigate the human sperm oxygen/energy consumption and zinc content in relation to motility.

Methods: In washed spermatozoa from 67 ejaculates, the oxygen consumption was determined. Following calculation of the total oxygen consumed by the Ideal Gas Law, the energy consumption of spermatozoa was calculated.