CUHK researchers discover distinct gut microbial signatures for prediction, diagnosis and treatment of long COVID

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HONG KONG, April 11, 2022 /PRNewswire/ — Clinical researchers from The Chinese College of Hong Kong’s (CUHK) College of Drugs (CU Medication) have determined for the first time unique gut microbiome profiles associated with publish-acute COVID-19 syndrome, much more frequently identified as “lengthy COVID”. These distinctive gut microbial signatures can be employed to forecast the hazard of establishing very long COVID and diagnose lengthy COVID in people with persistent signs just after the acute an infection. This is the world’s 1st examine to exhibit the gut microbiota as a crucial determinant of prolonged COVID. Research outcomes have been published in the international journal Intestine.

(PRNewsfoto/The Faculty of Medicine of The Chinese University of Hong Kong)

(PRNewsfoto/The Faculty of Medication of The Chinese College of Hong Kong)

In a pilot research, the workforce has also shown that a novel intestine microbiome immunity formula (SIM01) produced by CUHK can avoid the advancement of long COVID. CU Medicine is now conducting a randomised clinical demo employing the SIM01 system to modulate patients’ gut microbiota to prevent and handle extended COVID.

For the first time, clinical researchers from CU Medicine have identified distinct gut microbiome profiles associated with long COVID. These distinct gut microbial signatures can be used to predict the risk of developing long COVID and diagnose long COVID in patients with persistent symptoms after the acute infection.

(From left) Professor Siew NG, Associate Director of the Centre for Gut Microbiota Research; Professor Francis CHAN, Dean of Medicine and Director of the Centre for Gut Microbiota

For the initially time, clinical scientists from CU Drugs have recognized distinct intestine microbiome profiles related with prolonged COVID. These distinct intestine microbial signatures can be used to predict the hazard of creating extended COVID and diagnose very long COVID in patients with persistent indicators right after the acute infection. (From remaining) Professor Siew NG, Affiliate Director of the Centre for Gut Microbiota Study Professor Francis CHAN, Dean of Medicine and Director of the Centre for Intestine Microbiota

What is “extended COVID”?

Lengthy COVID is described as the existence of persistent indicators, this kind of as exhaustion, weak memory, difficulty in sleeping or breathing and hair decline, for 4 months or much more just after clearance of the SARS-CoV-2 virus. According to a review by CU Drugs, about 80% of patients had lengthy COVID six months just after recovering from COVID-19.

Clients with prolonged COVID have unique intestine microbiome composition

Diagnosis of prolonged COVID is typically delayed since signs or symptoms are non-specific and there is no unique take a look at to reveal extended COVID signs or symptoms. The enhancement of non-invasive, microbiome-primarily based profiling will be a helpful software for well timed detection of prolonged COVID.

Centered on metagenomics assessment of serial stool samples of in excess of 100 people, the crew discovered distinctive intestine microbiome profile for prolonged COVID. It was identified that diverse subtypes of long COVID had specific designs of gut microbiome profile. For example, a lack of the “helpful” immunity-boosting micro organism is strongly connected with persistent respiratory signs this kind of as cough or shortness of breath, whilst an abundance of selected pathogens is connected to fatigue and neuropsychiatric signs or symptoms which include difficulty in sleeping, bad memory and reduction of flavor. By using a machine-understanding design with more than 1,200 clinical samples, the staff can correctly forecast and detect very long COVID-involved microbiome with more than 90% sensitivity and specificity.

Detecting distinctive intestine microbiome profile connected with very long COVID has 3 major scientific applications, specifically, a prediction tool for extensive COVID with 90% of accuracy as a diagnostic tool for suspected very long COVID with both of those sensitivity and specificity about 90% and as a cure guideline for long COVID.

The intestine microbiome exam for extensive COVID is an revolutionary know-how of the Microbiota I-Centre (MagIC) funded by InnoHK, an initiative of the HKSAR Government’s Innovation and Technology Commission. CUHK Medical Centre will be the initially in Hong Kong to give this progressive check.

More than 90% of patients who gained SIM01 did not create lengthy COVID

Treating long COVID is challenging offered that, until finally just lately, there has been no definitive clinical check for analysis, and there is no typical therapy still. A current pilot review executed by the exploration staff confirmed that in sufferers who acquired CUHK’s microbiome immunity method SIM01 for 4 months, around 90% of them did not develop prolonged COVID up to a 12 months of observe-up.

Professor Francis KL CHAN, Dean of Medicine and Director of the Centre for Intestine Microbiota Investigate at CU Medicine, remarked, “Considering the fact that the outbreak of COVID-19 in 2020, a lot more than 500 million persons throughout the world have been contaminated. Our final results confirmed that pretty much 80% of our nearby sufferers put up with from lengthy COVID. Our discovery not only for the initially time offers a scientific clarification for lengthy COVID, but also delivers an powerful software for prediction, diagnosis and cure of this world wide well being challenge.”

Professor Siew Chien NG, Associate Director of the Centre for Gut Microbiota Investigation at CU Medicine, additional, “Our examine showed that microbiome-based profiling is most likely useful for possibility evaluation, well timed diagnosis and focused remedy of lengthy COVID. These new findings also show that in addition to hastening recovery from acute COVID-19 an infection, a microbiome immunity method (SIM01) is probably productive in protecting against very long COVID.”

CU Drugs conducts a big-scale examine to evaluate the usefulness of SIM01 for long COVID

CU Drugs has begun a significant-scale randomised medical demo to analyze the efficacy of SIM01 in avoiding and dealing with extensive COVID. Professor Martin Chi Sang WONG, Professor from The Jockey Club College of Public Health and Main Care at CU Medicine, claimed, “We are at the moment recruiting recovered COVID-19 sufferers who have persistent indicators into a medical trial that aims to minimize long COVID by modulating their gut microbiota.” This study is supported by the Wellbeing and Health care Exploration Fund of the HKSAR Government’s Foodstuff and Well being Bureau.

For those people who are intrigued, be sure to sign-up at or send a WhatsApp information “To be a part of the Recovery research” to +852 5641 7082.

Supply The School of Drugs of The Chinese College of Hong Kong