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بهترین سایت شرط بندی ایرانی
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Global Statistics

All countries
695,781,740
Confirmed
Updated on September 26, 2023 9:04 pm
All countries
627,110,498
Recovered
Updated on September 26, 2023 9:04 pm
All countries
6,919,573
Deaths
Updated on September 26, 2023 9:04 pm

Global Statistics

All countries
695,781,740
Confirmed
Updated on September 26, 2023 9:04 pm
All countries
627,110,498
Recovered
Updated on September 26, 2023 9:04 pm
All countries
6,919,573
Deaths
Updated on September 26, 2023 9:04 pm

Hallmark of severe COVID-19 patients identified

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COVID
Credit: CC0 Public Domain

A large team of researchers with members affiliated with a host of institutions in France has identified what they believe is a hallmark of severe COVID-19 patients. In their paper published in the journal Science, the group describes their study of 50 COVID-19 patients in France and what they learned from them.

The global pandemic has led medical scientists around the world to study the SARS-CoV-2 virus and associated infections. One characteristic of such infections is the difference in degree of symptoms: some people are asymptomatic, while others find themselves unable to breathe. Researchers are hoping that if the reason for different reactions to infection can be found, a means of treating people with severe infections may soon follow. In this new effort, the researchers studied 50 patients in French hospitals with varying symptoms—from those with a minor cough to those on ventilators. Their goal was to find a common factor in the patients with severe symptoms.

In analyzing blood, tissue, immune cells and other samples from the patients, the researchers came upon what they believe is a signature for people with severe infections—a combination of an interferon response deficiency and exacerbated inflammation. They suggest the signature may represent a hallmark for severely ill COVID-19 patients. The researchers suggest their findings could lead to therapies that boost interferon response to an infection while also reducing inflammation.

More specifically, the researchers found that critically ill patients had a deficiency in the response of type I interferons—a kind of protein that is used by the immune system to fight infections. In addition, there were higher than normal levels of proinflammatory signaling. Together, the two responses left patients with little ammunition to fight their infections. The work builds on studies by other researchers finding that interferon signaling in infected areas may play a role in mitigating disease progression. Such work has shown that duration, timing and location of interferon exposure to the virus are critical factors that appear to underlie the degree of success with current therapies.



More information:
Jérôme Hadjadj et al, Impaired type I interferon activity and inflammatory responses in severe COVID-19 patients, Science (2020). DOI: 10.1126/science.abc6027

© 2020 Science X Network

Citation:
Hallmark of severe COVID-19 patients identified (2020, July 15)
retrieved 15 July 2020
from https://medicalxpress.com/news/2020-07-hallmark-severe-covid-patients.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

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Vuori September Sale: Save up to 40% Off Hoodies, Joggers, Tees and More

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