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SARS-CoV-2 variants partially escape humoral immunity, but not T cells responses, study finds

Researchers at the Department of Viroscience, Erasmus MC, National Institute for Public Health and the Environment, Amsterdam UMC, and the Weill Medical College of Cornell University studied humoral and cellular immune responses to the wild type SARS-CoV-2, the B.1.1.7 variant (U.K. variant) and the B.1.351 variant (South African variant) in health care workers vaccinated with the BNT162b2 (Pfizer-BioNTech) mRNA vaccine.

31 May 2021

Corilagin: could a plant compound used in Chinese herbal medicine help prevent COVID-19?

The study, published in the journal Phytomedicine, characterized an active compound, corilagin (a derivative from Phyllanthus urinaria), as potential SARS-CoV-2 entry inhibitors for its preventive application in daily antiviral hygiene products.

31 May 2021

Different early antibody responses define COVID-19 disease trajectory

In a new study posted to the bioRxiv* preprint server, a prospective cohort of patients with COVID-19 exhibited distinct features of the IgG fragment antigen-binding (Fab) and fragment crystallizable (Fc) domains, predicting two distinct disease trajectory two days after a positive test.

31 May 2021

Novel protein interactions with ACE2 disrupted by SARS-CoV-2, contributes to COVID-19 pathologies

A severe and often fatal immune response called a “cytokine storm” can occur following SARS-CoV-2 infection. Some patients suffer from a range of complications several months after testing negative for SARS-CoV-2, and this is called ‘Long Haul’ or ‘Long’ COVID-19. The causes behind this phenomenon are not well understood.

31 May 2021

Neuropathology of COVID-19 patients caused by infection of brain pericytes

Recently, researchers from the UK and Sweden used highly sensitive multiplexed immunohistochemistry to study the brain tissue of COVID-19 patients and controls to analyze ACE2 expression in brain pericytes of patients with neurological symptoms. They also used spatial immunophenotyping to assess inflammation in brain tissue of COVID-19 patients.

31 May 2021

A novel multi-epitope COVID-19 vaccine developed using reverse vaccinology

A new study has been published in the Journal of Biomolecular Structure and Dynamics which focuses on the evaluation of E, M, N, ORF10, ORF8, ORF3a, and M proteins using bioinformatics tools to develop a multi-epitope COVID-19 vaccine. The researchers utilized in-silico methods to incite humoral and cellular immune responses.

31 May 2021

B.1.617.2 variant of SARS-CoV-2 is partially resistant to antibody-mediated neutralization

A team of scientists from France has recently conducted a study to evaluate the sensitivity of the B.1.617 variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to antibody-mediated neutralization.

31 May 2021

New study may help improve stem cell transplantation, lead to better drugs

Your immune system is always busy fighting incoming threats. It consists of a system of cells, and when there is a shortage of cells, it affects the performance of the immune system.

29 May 2021

Study shows that breast cancer can be prevented with better contraception choices

Hormonal contraceptives, e.g. the pill, the patch, and the vaginal ring, contain synthetic hormones that prevent pregnancy by either stopping ovulation, changing the cervical mucus to stop sperm from passing through the cervix and finding an egg, or changing the womb's lining to prevent a fertilized egg from being implanted in it.

29 May 2021

Simple at-home taste test could predict duration and severity of SARS-CoV-2 symptoms

A JAMA Network Open research paper published today (26 May 2021) by Doctorpedia contributor Henry P. Barham, M.D correlating an association between the bitter taste receptor phenotype and clinical outcomes among patients with COVID-19 has confirmed that a simple at-home taste test could be a gamechanger in predicting duration and symptom severity of the virus.

29 May 2021

New LNP-based mRNA vaccine candidate protects against lethal SARS-CoV-2 in preclinical trials

A new study, published in Nano Letters, describes an effective new COVID-19 vaccine candidate based on a messenger ribonucleic acid (mRNA) platform.

28 May 2021

Loss of gut epithelial barrier responsible for COVID-19-related MIS-C in children, suggests study

A new paper in the Journal of Clinical Investigation reports that this condition is due to damage to the gut, mediated by a decrease in the protein called zonulin, which is responsible for the integrity of the gut epithelial barrier. Reduced zonulin levels are found in several inflammatory and autoimmune conditions.

28 May 2021

Researchers identify a novel SARS-CoV-2 variant (with the V1230L mutation) in West Bengal, India

Researchers analyzed 2,000 viral genomes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the causative agent of coronavirus disease 2019 (COVID-19) – sequences obtained from India and found a new variant that could be more infectious and transmissible.

28 May 2021

Glycosylation a significant element in SARS-CoV-2 infection and vaccine design, says study

A new study by researchers from Taiwan and the US suggests that the removal of unnecessary glycans from spike glycoprotein of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) exposes highly conserved sequences and opens the door for the development of broadly protective vaccines against the virus and its variants.

28 May 2021

Study supports single-dose COVID-19 vaccine strategy for previously infected individuals

Researchers in the Netherlands have provided evidence that a single dose of Pfizer-BioNTech’s coronavirus disease 2019 (COVID-19) vaccine is sufficient to protect against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among people who have already been infected with the virus.

28 May 2021

Identifying SARS-CoV-2 epitopes targeted by current vaccination could help improve future vaccines

Researchers in the United States have identified antibody-inducing epitopes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in individuals vaccinated against coronavirus disease 2019 (COVID-19) that could be used for future diagnostics, therapeutics, and vaccine design.

28 May 2021

Study explains why it is difficult to withdraw from certain antidepressants

Researchers at the University of Illinois Chicago are a step closer to discovering why it is so difficult for people to withdraw from some antidepressant medications.

28 May 2021

Is a single Pfizer/BioNTech COVID-19 vaccine dose sufficient for individuals with prior SARS-CoV-2 infections?

A team of scientists from Spain has recently evaluated the immune responses induced by mRNA-based Pfizer/BioNTech coronavirus disease 2019 (COVID-19) vaccine in healthcare workers with or without a history of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.

27 May 2021

Nanobody inhalation found to be effective against COVID-19 in hamsters

In a recent paper, researchers describe an aerosolized nanobody formulation that was found to effectively block SARS-CoV-2 in Syrian hamsters.

27 May 2021

New DNA COVID-19 vaccine proven effective in mice

A new study has shown that a new DNA-based COVID-19 vaccine successfully induced immunization against SARS-CoV-2 in mice and hamsters.

27 May 2021

Receptor News and Research

SARS-CoV-2 variants partially escape humoral immunity, but not T cells responses, study finds

Corilagin: could a plant compound used in Chinese herbal medicine help prevent COVID-19?

Different early antibody responses define COVID-19 disease trajectory

Novel protein interactions with ACE2 disrupted by SARS-CoV-2, contributes to COVID-19 pathologies

Neuropathology of COVID-19 patients caused by infection of brain pericytes

A novel multi-epitope COVID-19 vaccine developed using reverse vaccinology

B.1.617.2 variant of SARS-CoV-2 is partially resistant to antibody-mediated neutralization

New study may help improve stem cell transplantation, lead to better drugs

Study shows that breast cancer can be prevented with better contraception choices

Simple at-home taste test could predict duration and severity of SARS-CoV-2 symptoms

New LNP-based mRNA vaccine candidate protects against lethal SARS-CoV-2 in preclinical trials

Loss of gut epithelial barrier responsible for COVID-19-related MIS-C in children, suggests study

Researchers identify a novel SARS-CoV-2 variant (with the V1230L mutation) in West Bengal, India

Glycosylation a significant element in SARS-CoV-2 infection and vaccine design, says study

Study supports single-dose COVID-19 vaccine strategy for previously infected individuals

Identifying SARS-CoV-2 epitopes targeted by current vaccination could help improve future vaccines

Study explains why it is difficult to withdraw from certain antidepressants

Is a single Pfizer/BioNTech COVID-19 vaccine dose sufficient for individuals with prior SARS-CoV-2 infections?

Nanobody inhalation found to be effective against COVID-19 in hamsters

New DNA COVID-19 vaccine proven effective in mice

Event guide: 4th Extra-Hepatic Lipid-Based Nanoparticles Delivery Summit eBook

Bringing real-time analytics to downstream bioprocess monitoring

Designing fluidic architecture for scalable diagnostic platforms

Evaluating new approaches for rare disease genomics

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