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In an intensive look at the effects of the virus causing COVID-19 on patients' microbiome – the collection of microorganisms that live in and on the human body – Rutgers scientists found that acute infection disrupts a healthy balance between good and bad microbes in the gut, especially with antibiotic treatment.
The work may lead to the development of probiotic supplements to redress any gut imbalances in future patients, the scientists said.
Reporting in the scientific journal Molecular Biomedicine, researchers described the first results of an ongoing study examining the microbiome of patients and volunteers at Robert Wood Johnson University Hospital in New Brunswick. The study, which began in May 2020, the early days of the pandemic, does celadrin raise blood pressure was designed to zero in on the microbiome because many COVID-19 sufferers complained of gastrointestinal issues – both during the acute phases of their illness and while recuperating.
We wanted to gain a deeper understanding by looking at specimens that would give us an indication about the state of the gut microbiome in people. What we found was that, while there were differences between people who had COVID-19 and those who were not ill, the biggest difference from others was seen in those who had been administered antibiotics."
Martin Blaser, the Henry Rutgers Chair of the Human Microbiome at Rutgers University, Director of the Center for Advanced Biotechnology and Medicine (CABM) at Rutgers and Study Author
Early in the pandemic, before the introduction of vaccines and other antiviral remedies, it was a common practice to treat COVID-19 patients with a round of antibiotics to attempt to target possible secondary infections, said Blaser, who also is a professor of medicine and pathology and laboratory medicine at Rutgers Robert Wood Johnson Medical School.
Humans carry large and diverse populations of microbes, Blaser said. These microorganisms live in the gastrointestinal tract, on the skin and in other organs, with the largest population in the colon. Scientists such as Blaser have shown over recent decades that the microbiome plays a pivotal role in human health, interacting with metabolism, the immune system and the central nervous system.
The microbiome has many different functions. "One is to protect the human body against invading pathogens, whether they're bacteria or viruses or fungi," Blaser said. "That goes deep into evolution, maybe a billion years of evolution."
Medical problems often arise when the balance between beneficial and pathogenic microbes in a person's microbiome is thrown off, a condition known as dysbiosis.
The scientists studied microbiomes by measuring populations of microorganisms in stool samples taken from 60 subjects. The study group consisted of 20 COVID-19 patients, 20 healthy donors and 20 COVID-19-recovered subjects. They found major differences in the population numbers of 55 different species of bacteria when comparing the microbiomes of infected patients with the healthy and recovered patients.
The Rutgers scientists plan to continue to test and track the microbiomes of patients in the study to ascertain the long-term effect on individual microbiomes from COVID-19.
"Further investigation of patients will enhance understanding of the role of the gut microbiome in COVID-19 disease progression and recovery," Blaser said. "These findings may help identify microbial targets and probiotic supplements for improving COVID-19 treatment."
Other Rutgers scientists on the study included Yue Sandra Yin, the study's first author and a research teaching specialist at CABM; Veenat Parmar, program administrator of the Rutgers Microbiome Program; Vinod Rustgi, Distinguished Professor of Medicine, clinical director of hepatology and director of the Center for Liver Diseases and Liver Masses at Robert Wood Johnson Medical School; as well as Carlos Minacapelli, Carolyn Catalano, Abhishek Bhurwal and Kapil Gupta, all of the Division of Gastroenterology and Hepatology and the Center for Liver Diseases and Masses at the Robert Wood Johnson School of Medicine.
The study was supported by Danone and by the National Institutes of Health (National Institute of Allergy and Infectious Diseases).
Posted in: Medical Research News | Disease/Infection News
Tags: Allergy, Antibiotic, Bacteria, Biomedicine, Biotechnology, Central Nervous System, covid-19, Dysbiosis, Evolution, fungi, Gastroenterology, Gastrointestinal Tract, Hepatology, Hospital, Immune System, Infectious Diseases, Laboratory, Liver, Medical School, Medicine, Metabolism, Microbiome, Nervous System, Pandemic, Pathology, Probiotic, Research, Skin, Supplements, Virus
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