Faculty profile

Malcolm Sears

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Professor EmeritusMedicineMcMaster University

Malcolm Sears

Professor Emeritus

Medicine

Faculty of Health Sciences

McMaster University

Hamilton, Ontario, Canada

In this role since 2019

Email ORCID

Supervision signals

Emeritus professors are retired and rarely take new students.
No graduate courses on record.
26 publications in the last five years, latest in 2026.
Senior (last) author on 3 recent papers, a sign of leading a research group.
Principal investigator on 3 CIHR grants, most recently in 2015.

These signals come from public records. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

609

Publications

41,162

Citations

h-index

Collaborators

Grants

Publications by year

Counts cover the works listed on the university profile; citation counts come from Dimensions.

Academic profiles

University Profile Search on Google Scholar iDORCID OpenAlex

Social profiles

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Contact

searsm@mcmaster.ca (905) 525-9140 ext. 33286

Research

Research areas, by share of publications

Asthma and respiratory diseasesMedicine
Gut microbiota and healthBiochemistry, Genetics and Molecular Biology
Respiratory and Cough-Related ResearchMedicine
Pediatric health and respiratory diseasesHealth Professions

Research areas are derived from OpenAlex topics of their publications.

From the 150 most recent of 609 publications.

Protective effects of dog allergen and endotoxin for lung function and asthma

Nanishi M, Reyna ME, Pajdakovska M, Breton VL, Bédard M-A, Duan Q, George E, Khan MKA, Chowdhury B, Sharma BT

Journal of Allergy and Clinical Immunology2026

DOI: 10.1016/j.jaci.2026.02.016

Exposomics for childhood asthma

Winsor GL, Cook J, Edwards K, Gill EE, Petersen C, Al-Mamaar K, Ambalavanan A, Ames S, Anand SS, Arietta M-C

2026

DOI: 10.64898/2026.03.02.26347385

From fetus to 8: the CHILD Cohort Study

Miliku K, Reyna ME, Medeleanu M, Dai R, Dubeau A, Lefebvre DL, Wright K, Dawod B, Beck M, Brooks E

American Journal of Epidemiology202515 citations

DOI: 10.1093/aje/kwae397

Association of early-life dust allergens and endotoxin with childhood asthma and lung function: An analysis of the CHILD study

Nanishi M, Reyna M, McCoy J, Breton V, Bédard M-A, Duan Q, George E, Chowdhury B, Sharma B, Dai R

European Respiratory Journal2025

DOI: 10.1183/13993003.congress-2025.oa1265

Human milk oligosaccharides are associated with maternal genetics and respiratory health of human milk-fed children

Ambalavanan A, Chang L, Choi J, Zhang Y, Stickley SA, Fang ZY, Miliku K, Robertson B, Yonemitsu C, Turvey SE

Nature Communications202444 citations

DOI: 10.1038/s41467-024-51743-6

Divergent maturational patterns of the infant bacterial and fungal gut microbiome in the first year of life are associated with inter-kingdom community dynamics and infant nutrition

Mercer EM, Ramay HR, Moossavi S, Laforest-Lapointe I, Reyna ME, Becker AB, Simons E, Mandhane PJ, Turvey SE, Moraes TJ

Microbiome202438 citationsOpen Access

DOI: 10.1186/s40168-023-01735-3 PMID: W4391602650

Networks of human milk microbiota are associated with host genomics, childhood asthma, and allergic sensitization

Fang ZY, Stickley SA, Ambalavanan A, Zhang Y, Zacharias AM, Fehr K, Moossavi S, Petersen C, Miliku K, Mandhane PJ

Cell Host and Microbe202419 citations

DOI: 10.1016/j.chom.2024.08.014

Interactions between maternal genomics and human milk fatty acids are associated with milk microbiota and childhood atopy

Fang ZY, Stickley S, Sagman J, Fehr K, Moossavi S, Miliku K, Field C, Mandhane P, Simons E, Moraes T

European Journal of Human Genetics2024

Host genomics and interactions with environmental exposures are associated with the early-life gut microbiota and atopic diseases in the CHILD Cohort Study

Stickley S, Fang ZY, Ambalavanan A, Zhang Y, Petersen C, Dai D, Robertson B, Yonemitsu C, Bode L, Mandhane P

European Journal of Human Genetics2024

Early-life Exposures Interact With Genetic Risk to Modulate Lung Function and Risk of Asthma in Pre-School-Aged Children

George E, Ambalavanan A, Stickley SA, Fang ZY, Lu Z, Dai R, Turvey S, Mandhane PJ, Simons E, Brook JR

American Journal of Respiratory and Critical Care Medicine2024

DOI: 10.1164/ajrccm-conference.2024.209.1_meetingabstracts.a6181

Researchers with similar interests

Parameswaran Krishna Nair

Medicine

Asthma and respiratory diseases, Respiratory and Cough-Related Research

Paul O'Byrne

Medicine

Asthma and respiratory diseases, Respiratory and Cough-Related Research

Padmaja Subbarao

Medicine

Asthma and respiratory diseases, Gut microbiota and health

Clive Davis

Medicine

Asthma and respiratory diseases, Respiratory and Cough-Related Research

Gail Gauvreau

Medicine

Asthma and respiratory diseases, Respiratory and Cough-Related Research

Manali Mukherjee

Medicine

Asthma and respiratory diseases, Respiratory and Cough-Related Research

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mention

Subject: Prospective PhD student: Asthma and respiratory diseases Dear Professor Sears, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Protective effects of dog allergen and endotoxin for lung function and asthma" (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]

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Malcolm Sears

Research

Protective effects of dog allergen and endotoxin for lung function and asthma

Exposomics for childhood asthma

From fetus to 8: the CHILD Cohort Study

Association of early-life dust allergens and endotoxin with childhood asthma and lung function: An analysis of the CHILD study

Human milk oligosaccharides are associated with maternal genetics and respiratory health of human milk-fed children

Divergent maturational patterns of the infant bacterial and fungal gut microbiome in the first year of life are associated with inter-kingdom community dynamics and infant nutrition

Networks of human milk microbiota are associated with host genomics, childhood asthma, and allergic sensitization

Interactions between maternal genomics and human milk fatty acids are associated with milk microbiota and childhood atopy

Host genomics and interactions with environmental exposures are associated with the early-life gut microbiota and atopic diseases in the CHILD Cohort Study

Early-life Exposures Interact With Genetic Risk to Modulate Lung Function and Risk of Asthma in Pre-School-Aged Children

Frequent collaborators

Padmaja Subbarao

Sonia Anand

Paul O'Byrne

Judah Aryeh Denburg

Michael Mark Cyr

Joseph Macri

Researchers with similar interests

Parameswaran Krishna Nair

Paul O'Byrne

Padmaja Subbarao

Clive Davis

Gail Gauvreau

Manali Mukherjee