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New study suggests targeting gel formed in lungs of severe COVID-19 patients may help reduce disease intensity

Scientists proposed that sufferers with extreme an infection be given hyaluronidase early on to assist filter the gel made up of a polysaccharide (sugar) referred to as hyaluronan, from the lungs whereas hypoxia remains to be creating

Nations could miss targets to scale back persistent illnesses by 2030 attributable to COVID-19. Pixabay

One of many earliest findings from finding out COVID-19 sufferers had proven that in extreme instances, the sufferers have lung exudates and alveolar plugs, which is sort of a clear jelly that makes the lungs seem like these of an individual who died of drowning. Nonetheless, it was unknown the place the jelly originated from.

Now, a gaggle of researchers on the Umea College, Sweden declare that this gel is made up of a polysaccharide (sugar) referred to as hyaluronan, which is often discovered within the extracellular matrix (a meshwork of assorted molecules that encompass and assist physique cells).

The findings of the examine, revealed within the Journal of Organic Chemistry, could assist discover a new remedy for COVID-19 that targets the elevated hyaluronan within the lungs.


Hyaluronan (HA), often known as hyaluronic acid, is a sugar that performs varied features within the physique. It cushions and lubricates physique cells and tissues and is current abundantly within the eyes, joints and coronary heart valves. Hyaluronic acid performs an vital position in sustaining tissue homeostasis and activating varied regulatory pathways concerned in wound therapeutic, tumour development and irritation.

A single molecule of HA can soak up as much as 1,000 occasions extra water than its molecular weight, which might result in edema.

It has beforehand been urged that hyaluronan could also be concerned within the pathogenesis of extreme COVID-19 however no examine has verified the hyperlink to this point. Inhalation of hyaluronidase (an enzyme that breaks down HA) has additionally been proposed for the remedy of the illness. Nonetheless, the remedy couldn’t be used with out establishing the presence of HA within the lungs.

The most recent examine

For the most recent analysis, the scientists studied the post-mortem lung tissues from three COVID-19 sufferers with extreme illness and in contrast it with lung tissue samples from wholesome folks.

The samples had been stained to verify the presence of HA and it was certainly discovered within the exudates, plugs and within the thickened perialveolar interstitium (supportive tissue in lungs across the alveoli or air sacs) in extreme COVID-19 sufferers. HA was solely discovered within the intact alveolar partitions and perivascular (across the blood vessels) tissue in wholesome folks.

A brand new potential remedy 

Within the examine, the authors said that the presence of HA within the lungs of sufferers with extreme coronavirus an infection factors to a potential pathological mechanism behind hypoxia and respiratory failure seen in such sufferers.

Because the researchers have discovered HA within the lungs of extreme COVID-19 sufferers, they proposed that these sufferers could also be given hyaluronidase early within the illness to assist filter HA from the lungs whereas hypoxia remains to be creating.

As per a news launch by the Umea College, hyaluronidase is already getting used for varied magnificence remedies together with lip augmentation and correcting wrinkles. A drug referred to as hymecromone that may decelerate the manufacturing of hyaluronan is getting used to deal with circumstances like gallbladder assaults.

The authors added that cortisone (steroid drug), proposed for the remedy of extreme COVID-19 for his or her common anti-inflammatory properties, can even break down hyaluronan – which can be why they’re so efficient.

For extra info, learn our article on COVID-19.

At The Press Reporter, researchers and journalists work with medical doctors to deliver you info on all issues well being.

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