AIR 2026 | Keynote lecture by Professor Miriam Moffatt, Imperial College London, UK

Value of the Information & Strength of the Argument

The lecture provides a valuable synthesis of decades of research, offering a comprehensive framework for understanding asthma as a complex disease involving host-microbe interactions. The argumentation is solid, built on a logical progression from environmental epidemiology to genetic discoveries and microbiome studies. Moffatt effectively integrates findings from her own research and that of others, presenting a coherent narrative that supports the holobiont concept. She critically evaluates the hygiene hypothesis and presents evidence for the protective effects of microbial exposure, while also acknowledging the complexity of genetic and environmental interactions. The discussion of ORMDL3 and its functional role in sphingolipid metabolism is particularly strong, linking genetic association to mechanistic insights. The use of lockdown data to illustrate the role of viruses in exacerbations is compelling and well-supported. Overall, the lecture is informative and persuasive, though it is a narrative review rather than a systematic analysis, and some claims could benefit from more detailed citation.

Scientific Rigor, Source Quality, Title Accuracy

The lecture demonstrates high scientific rigor, with Moffatt referencing numerous key studies and researchers in the field, including David Strachan’s hygiene hypothesis, the alpine farm studies by Erika von Mutius, and her own GWAS and microbiome research. She accurately represents the historical development of the field and acknowledges the contributions of others. The sources cited are credible and well-known in asthma research. The title accurately reflects the content, focusing on asthma and the holobiont, and the lecture delivers on this promise. The presentation is well-structured and clear, with appropriate technical detail for a scientific audience. No commercial or promotional content was present. The lecture is a keynote address, so it is not peer-reviewed, but it is based on extensive published research and represents the expert opinion of a leading scientist.

The title accurately reflects the content: a keynote lecture on asthma and the holobiont, delivered by Professor Miriam Moffatt.

8/10

The lecture is delivered by a leading expert in respiratory genetics with 35 years of experience, and it synthesizes well-established research findings. The content is consistent with current scientific consensus, though it is a keynote presentation rather than a peer-reviewed publication, and some specific data points are presented without detailed citations.

Markers derived by PSI from the transcript: the creator did not define chapters.

• 02:00Introduction and background on asthma prevalence and impact.
• 10:00Discussion of the hygiene hypothesis and early epidemiological studies.
• 20:00Alpine farm studies and the protective effect of microbial exposure.
• 30:00Genome-wide association studies and the discovery of ORMDL3.
• 40:00Role of respiratory viruses in asthma exacerbations and lockdown data.
• 50:00Lung microbiome research and the concept of the holobiont.

• Global Asthma Network — Cited for global asthma prevalence data.
• Asthma and Lung UK — Cited for UK asthma statistics and deaths.
• Strachan DP. Hay fever, hygiene, and household size. BMJ. 1989 — Original paper proposing the hygiene hypothesis.
• von Mutius E, et al. Farm living: effects on childhood asthma and allergy. Nat Rev Immunol. 2010 — Review of farm studies and asthma protection.
• Moffatt MF, et al. Genetic variants regulating ORMDL3 expression contribute to the risk of childhood asthma. Nature. 2007 — First GWAS identifying ORMDL3 as an asthma locus.
• Ober C, et al. Effect of variation in CHI3L1 on serum YKL-40 level, risk of asthma, and lung function. N Engl J Med. 2008 — Study on genetic variants and asthma risk.
• Hilty M, et al. Disordered microbial communities in asthmatic airways. PLoS One. 2010 — Study showing altered lung microbiome in asthma.

• Global Initiative for Asthma (GINA) — International guidelines on asthma management, consistent with the lecture's emphasis on inflammation and exacerbations.
• National Heart, Lung, and Blood Institute (NHLBI) - Asthma — Provides general asthma information that aligns with the lecture's definition and impact.

• Some studies have questioned the causal role of the microbiome in asthma — While the lecture presents a strong association between altered microbiome and asthma, some research suggests that changes may be secondary to disease or treatment, and causality is not fully established.