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The impact of pre-existing immunity on mRNA booster doses of BNT162b2 and mRNA-1273 vaccines against SARS-CoV-2

Researchers assessed the impact of pre-existing immunity on mRNA booster doses of BNT162b2 and mRNA-1273 vaccines against SARS-CoV-2.

1 Jul 2022

Study uncovers new gene that increases Alzheimer's disease risk in women

Alzheimer's disease (AD) is a progressive neurodegenerative disorder and the most common cause of dementia, affecting more than 5.8 million individuals in the U.S. Scientists have discovered some genetic variants that increase the risk for developing Alzheimer's; the most well-known of these for people over the age of 65 is the APOE ε4 allele.

30 Jun 2022

Evolution of SARS-CoV-2 genomes based on continuing positive selection

Researchers hypothesized that ongoing positive selection strongly influences SARS-CoV-2 genomes, which plays an important role in shaping the dynamics of the COVID-19 pandemic.

28 Jun 2022

A cancer patient who had SARS-CoV-2 for over eight months

In a recent study posted to the medRxiv* pre-print server, researchers in Israel described the case of a severely immunocompromised cancer patient who developed a chronic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.

28 Jun 2022

Recombinant SARS-CoV-2 harboring double reporters for COVID-19 surveillance

In a recent article posted to the bioRxiv* preprint server, researchers at Texas Biomedical Research Institute, Georgia State University, and the University of Alabama at Birmingham developed a bireporter-expressing recombinant severe acute respiratory syndrome coronavirus 2 (rSARS-CoV-2) for tracking SARS-CoV-2 infection.

27 Jun 2022

"Founder events" that reduced genetic diversity found to be common throughout human history

Human populations have waxed and waned over the millennia, with some cultures exploding and migrating to new areas or new continents, others dropping to such low numbers that their genetic diversity plummeted.

23 Jun 2022

Researchers discover two important novel aspects of APOE4 gene in Alzheimer's patients

Alzheimer's disease (AD) is a progressive neurodegenerative disorder and the most common cause of dementia, affecting more than 5.8 million individuals in the U.S.

23 Jun 2022

Increased docosahexaenoic acid intake may lower risk for Alzheimer’s and dementia

An increase in the concentration of DHA in RBCs is associated with a reduced risk of Alzheimer's disease and all-cause dementia

21 Jun 2022

Scientists explore brainstem circuits to find nausea intervention strategies

In a new study, researchers uncovered the organization of nausea-associated brainstem circuits to show that selectively blocking the excitatory neurons responsive to nausea-promoting growth/differentiation factor 15 suppresses nausea-related behaviors.

20 Jun 2022

Conceptual framework to examine the patterns of copy number alterations in human cancer

A new study published in Nature presented a conceptual framework to examine the patterns of copy number alterations in human cancer.

17 Jun 2022

People with higher blood DHA levels are 49% less likely to develop Alzheimer's disease, study shows

New research published today in Nutrients shows that people with a higher blood DHA level are 49% less likely to develop Alzheimer's disease vs. those with lower levels, according to the Fatty Acid Research Institute (FARI).

10 Jun 2022

Insights on the T cell epitope landscape for the five main SARS-CoV-2 variants of concern

Researchers generated an AI resource to characterize the T cell epitope landscape for SARS-CoV-2 variants of concern.

9 Jun 2022

SARS-CoV-2 variation within individual hosts holds largely untapped information that may enhance the resolution of transmission inferences

Researchers assessed the variation of SARS-CoV-2 within hosts.

1 Jun 2022

Immunogenicity predictions reveal SARS-CoV-2 CD8+ T-cell epitopes

In a recent study posted to the bioRxiv* pre-print server, researchers identified several new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epitopes displayed on human leukocyte antigens class I (HLA-I) molecules.

26 May 2022

Study reports SARS-CoV-2 accessory proteins downregulate MHC-I expression using distinct mechanisms

Researchers observed SARS-CoV-2 downregulates the expression of MHC class I molecules.

23 May 2022

Exploring cross-neutralizing anti-SARS-CoV-2 antibody responses among the general population

Researchers performed a molecular analysis of cross-reactive antibodies targeted against the receptor-binding domain of SARS-CoV-2 strains among the general population.

20 May 2022

Downregulation of MHC-I surface expression by SARS-CoV-2 accessory proteins

Researchers analyze the mechanisms by which two SARS-CoV-2 accessory proteins, ORF3a and ORF7a, can downregulate the expression of MHC-I.

19 May 2022

CDC study reveals hybrid SARS-CoV-2 spike from Delta/Omicron recombination event

The US Centers for Disease Control and Prevention (CDC) has conducted national-level genomic surveillance to identify and characterize delta-omicron recombinant genomes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). A total of nine genomes with a hybrid delta-omicron spike protein have been identified.

14 May 2022

Bayesian viral allele selection for SARS-CoV-2 genomic surveillance

In a recent study posted to the bioRxiv* preprint server, researchers assessed the selection effects in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) using Bayesian viral allele selection.

12 May 2022

Researchers find gene that shapes mutation rate in mice

Every organism is born with a few mutations in their genome that differ genetically from both of their parents.

11 May 2022