Siew C. Ng


Ng Siew Chien is a Malaysian-born clinician-scientist and gastroenterologist based in Hong Kong. She holds the Croucher Professorship in Medical Sciences at The Chinese University of Hong Kong, known for research in inflammatory bowel disease and gut microbiota. She has led international studies on IBD epidemiology in the Asia-Pacific region, publishing over 400 peer-reviewed papers in journals such as Nature, Nature Medicine, and The Lancet. Ng has been recognized as a Highly Cited Researcher by Clarivate since 2020 and elected a Foreign Member of Academia Europaea in 2024.

Education

Ng obtained her Bachelor of Medicine and Surgery (MBBS) degree from St Bartholomew's and the Royal London School of Medicine and Dentistry in 2000. She completed her Doctor of Philosophy (PhD) degree at Imperial College London in 2009.

Career

Ng joined The Chinese University of Hong Kong in 2010, serving as Croucher Professor in Medical Sciences and Associate Dean in the Faculty of Medicine. She is the Director of the Microbiota I-Center, focusing on utilizing the human gut microbiome for the development of novel microbial biomarkers and personalised microbiome therapeutics.
She has collaborated with over 20 countries and 30 centers in the Asia-Pacific on IBD studies.

Research

Ng’s research addresses inflammatory bowel disease, gut microbiota, and therapies like fecal microbiota transplantation. Her studies have improved understanding of IBD trends in Asia. Ng has identified microbial signatures for IBD and autism spectrum disorder, leading to non-invasive diagnostic tests, including one granted Breakthrough Device Designation by the U.S. Food and Drug Administration in 2024 for autism diagnosis in at-risk children. Her work extends to colorectal cancer and post-acute COVID-19, supporting long COVID treatments.

Awards and recognition

Ng was elected a Foreign Member of Academia Europaea in 2024. That year, she received the Bank of China Hong Kong Science and Technology Innovation Prize. In October 2023, she became the first Hong Kong New Cornerstone Investigator in Biology and Biomedical Sciences. Ng has been a Highly Cited Researcher by Clarivate since 2020 and received Croucher Senior Medical Fellowships in 2020.