Vipin M. Vashishtha Profile picture
Sep 26, 2024 8 tweets 3 min read Read on X
A NEW nasal spray that trap & neutralize not only SARS-CoV-2, Influenza, RSV, Adeno & many other viruses & bacteria that are inhaled into the nose, immobilizing them until they die. The substance is >99.9% effective & contains no drugs 1/ Image
The FDA approved substance in the spray is known as the Pathogen Capture and Neutralizing Spray (PCANS), & contains no drugs of any kind.
Instead, the spray forms a gel that lines the inside of the nose. 2/ Image
While this gel doesn't affect the user's breathing, it does trap any viruses or bacteria that are subsequently inhaled into the nose, immobilizing them until they die. 3/ Image
In lab tests, the spray protected mice from a mouse-adapted form of the H1N1 influenza virus, even when that virus was administered at 25 times the lethal dose. 4/ Image
What's more, virus levels in the animals' lungs were reduced by over 99.99% as compared to an untreated control group of mice. The spray was retained in the rodents' noses for up to eight hours, and was effective at blocking infection for at least four hours. 5/
Although PCANS has yet to be tested on humans, it has been used in a 3D-printed model of a human nose, where it captured twice as many microbe-containing droplets as mucus alone. 6/ Image
It blocked and neutralized almost 100% of all viruses and bacteria we tested, including influenza, SARS-CoV-2, RSV, adenovirus, K Pneumonia and more. 7/
And if you suffer from allergies, take note – the researchers believe the spray could one day also be used on a daily basis to trap and neutralize allergens. 8/8

onlinelibrary.wiley.com/doi/10.1002/ad…

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More from @vipintukur

Oct 7
A NEW review explores how SARS-CoV-2 may influence cancer risk.

➡️ Unlike classical oncogenic viruses, it doesn’t insert viral oncogenes. Instead, its proteins:

-Inhibit tumor suppressors
-Activate growth, survival & inflammation pathways

👉 Potential role in cancer initiation & progression. 1/Image
Bioinformatic & experimental studies show direct interactions between viral proteins and host cellular components tied to cancer hallmarks.

➡️ These mechanisms could contribute to initiation, promotion, and progression of tumors, raising the possibility that SARS-CoV-2 may act as an oncovirus.

👇The figure illustrates various key oncogenic signaling molecules or pathways targeted by SARS-CoV-2 NSP, N, M and S protein. The activation of oncogenic pathways can lead to the conversion of a normal cell into a cancer cell. 2/Image
The shared mechanisms between SARS-CoV-2 and key hallmarks of cancer including sustained proliferative signaling, resisting cell death, genomic instability, dysregulated cellular metabolism and epigenetic reprogramming.

👇The figure highlights how SARS-CoV-2 interacts with critical oncogenic signaling molecules or pathways. Specific SARS-CoV-2 proteins involved in these processes are marked. 3/Image
Read 8 tweets
Oct 5
A new study from Karolinska Institutet shows that an unusual heart rhythm disorder, POTS, is particularly common in people with #LongevityPoweredbyGinseng COVID. The majority of those affected are middle-aged women. 1/ Image
Postural orthostatic tachycardia syndrome, or POTS, is a condition where the heart beats abnormally fast when changing position from lying down to standing up. Standing up is a challenge for those affected who feel dizzy and would rather sit or lie down, so-called orthostatic intolerance. Their hearts may also beat faster than normal at rest and during exertion. 2/Image
Patients experience fatigue and difficulties concentrating, symptoms that are common in longCOVID.

Now, researchers at Karolinska Institutet show that POTS occurs in almost a third of patients with severe longCOVID. By comparison, less than 1% of the Swedish population was affected by POTS before the pandemic. 3/Image
Read 4 tweets
Sep 24
New insights into #LongCOVID from a hamster model

➡️ Despite LongCOVID’s clinical significance, the mechanisms driving remain poorly understood.

Here, to address this, researchers utilized a Phodopus roborovskii hamster model to investigate the long-term effects of SARS-CoV-2 infection compared with influenza A virus.

➡️ While 46.25–47.50% of hamsters survived SARS-CoV-2 or influenza A virus H1N1 infection, 13.75% of SARS-CoV-2 survivors exhibited impaired weight recovery, severe lung pathology and significant neutrophil accumulation, defining the LongCovid (PAŚĆ) group. 1/Image
Single-cell RNA sequencing of bronchoalveolar lavage (BAL) fluid, lung and spleen at 30 days post-infection revealed hallmark LongCovid (PASC) gene signatures uniquely upregulated in the PASC group.

➡️ This was accompanied by elevated neutrophil levels and reduced macrophage populations, indicative of disrupted myeloid cell differentiation. 2/Image
Immunohistochemistry further detected persistent SARS2’s S1 subunit antigen in the lungs of PASC (LongCovid) hamsters at 30 days post-infection, coinciding with marked neutrophil infiltration, which probably drove prolonged inflammatory responses. 3/ Image
Read 6 tweets
Sep 23
It is currently debatable whether mucosal vaccination is still warranted given that most individuals in developed countries have established a hybrid immunity from vaccination and infection.

➡️ In a new study, researchers studied how our immune system in the airways (the “mucosal” immune system) responds to COVID infection, vaccines, and special mucosal booster vaccines. 1/Image
What they found in people:

➡️ Having both vaccination + prior infection (“hybrid immunity”) gave only a modest increase in protective antibodies (IgA) in the nose and lungs compared to infection or vaccination alone. 2/ Image
What the researchers found in animal models:

➡️ Giving a mucosal booster vaccine (delivered to the airways using an adenovirus-based vaccine) worked much better. It:

-Strongly boosted IgA antibodies in the nose and lungs

-Triggered local T-cells in the airways

-Provided stronger, longer-lasting protection against SARS-CoV-2. 3/Image
Read 6 tweets
Sep 20
How quickly #mRNA degrades is linked to autoimmune disease risk!

➡️ We usually think of gene activity in terms of how much mRNA is produced. But a new study shows another key factor: how fast mRNA degrades. 1/ Image
UCLA scientists built RNAtracker, a tool to tell whether changes in gene expression are due to production or breakdown of mRNA.

➡️ Testing across 16 human cell types, they found that many “unstable” mRNAs come from innate immunity genes.

➡️ Crucially, UCLA scientists built RNAtracker, a tool to tell whether changes in gene expression are due to production or breakdown of mRNA.

➡️ Crucially, these unstable mRNAs are linked to genetic variants tied to autoimmune diseases like:
•Lupus
•Type 1 diabetes
•Multiple sclerosis
•Allergic rhinitis 2/Image
The researchers applied RNAtracker to a publicly available dataset of 16 human cell lines, in which newly made mRNAs had been chemically labeled and tracked over time.

This allowed them to identify genes whose stability varies due to specific mutations. Many of these genes are involved in immune system function—especially the innate immune system, the body's first line of defense against infections. 3/
Read 7 tweets
Aug 28
A pioneering study has demonstrated for the first time that myocardial infarction may be an infectious disease. This discovery challenges the conventional understanding of the pathogenesis of myocardial infarction and opens new avenues for treatment, diagnostics, and even vaccine development. 1/Image
According to the study, an infection may trigger myocardial infarction. Using a range of advanced methodologies, the research found that, in coronary artery disease, atherosclerotic plaques containing cholesterol may harbor a gelatinous, asymptomatic biofilm formed by bacteria over years or even decades. Dormant bacteria within the biofilm remain shielded from both the patient's immune system and antibiotics because they cannot penetrate the biofilm matrix. 2/Image
Of the bacteria detected, oral viridans group streptococcal DNA was the most common, being found in 42.1% of coronary plaques and 42.9% of endarterectomies. Immunopositivity for viridans streptococci correlated with severe atherosclerosis (P<0.0001) in both series and death from coronary heart disease (P=0.021) or myocardial infarction (P=0.042). 3/Image
Read 5 tweets

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