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Losing a productive type of beta cell may contribute to the development of diabetes

Multiple types of beta cells produce insulin in the pancreas, helping to balance blood sugar levels. Losing a particularly productive type of beta cell may contribute to the development of diabetes, according to a new study by Weill Cornell Medicine investigators.

17 Mar 2023

Common commensal gut bacterium uses phase separation of Rho factor to thrive in the mammalian gut

The common commensal gut bacterium Bacteroides thetaiotaomicron uses phase separation of the transcription termination factor Rho to colonize and thrive in the mammalian gut, according to a new study in mice.

17 Mar 2023

Potential approach to improve solid tumor T cell therapy

Researchers at the Perelman School of Medicine at the University of Pennsylvania have been working on a preclinical study that focuses on a new strategy that uses a “one-two punch” to assist T cells in attacking solid tumors.

17 Mar 2023

The impact of genome doubling on the development of cancer

Since a single cell has 2–3 m of DNA, the only method to store it is in tight coils. The answer is chromatin, a DNA-protein complex that is wrapped around histone proteins.

17 Mar 2023

Novel web-based tool deoptimizes genetic sequences based on different codon usage

A new software tool developed by Texas Biomedical Research Institute and collaborators can help scientists and vaccine developers quickly edit genetic blueprints of pathogens to make them less harmful.

16 Mar 2023

High blood caffeine levels lower body fat and the long-term risks of type 2 diabetes, study finds

A high blood caffeine level might curb the amount of body fat a person carries and their risk of type 2 diabetes, suggests research published in the open access journal BMJ Medicine.

16 Mar 2023

Deciphering the mechanisms used by a fungus to increase iron acquisition

The University of Cordoba discovered how the entomopathogenic fungus Metarhiziumbrunneum increases iron acquisition in melon and cucumber.

15 Mar 2023

Rice biologists embark on a three-year project to create genetically encoded antibiotics

Synthetic biologists at Rice University are embarking on a three-year project to create "genetically encoded antibiotics," strands of RNA that bacteria will readily copy and share that will selectively kill only disease-causing, pathogenic bacteria.

14 Mar 2023

Understanding the factors that impact CRISPRa efficiency

Investigators, from the Wellcome Sanger Institute and partners, utilized human stem cells and neurons to explore what attributes impact how well CRISPR activation works for different sets of genes.

14 Mar 2023

Effective backup mechanism ensures efficient antimicrobial responses in humans

In the human body, virus particles are identified by pattern recognition receptors (PRRs) either within or on the cell surface. When a receptor is activated, a signaling cascade is initiated, which results in the production and release of signaling molecules like interferons and cytokines.

14 Mar 2023

Significance of astrocyte–neuron interactions in fine-tuning brain function

Humans learn to handle a variety of skilled movements throughout their lives, from driving a car to swinging a tennis racket. Neurons are not the only ones who implement this learning, but a new study from The Picower Institute for Learning and Memory at MIT shows that astrocytes play an important role as well.

From Massachusetts Institute of Technology (MIT) 14 Mar 2023

Study investigates schizophrenia risk across African ancestry

Researchers have identified two previously unknown genes linked to schizophrenia and newly implicated a third gene as carrying risk for both schizophrenia and autism. Led by the Icahn School of Medicine at Mount Sinai, the multi-center study further demonstrated that the schizophrenia risk conferred by these rare damaging variants is conserved across ethnicities. The study may also point to new therapeutics.

14 Mar 2023

Bacteriophages might hold the key to fighting antibiotic resistance

As conventional antibiotics continue to lose effectiveness against evolving pathogens, scientists are keen to employ the bacteria-killing techniques perfected by bacteriophages, the viruses that infect bacteria.

14 Mar 2023

Neural-network-based image recognition models for examining SCC defects

Scientists from Tokyo Metropolitan University have used machine learning to automate the identification of defects in sister chromatid cohesion. They trained a convolutional neural network (CNN) with microscopy images of individual stained chromosomes, identified by researchers as having or not having cohesion defects. After training, it was able to successfully classify 73.1% of new images. Automation promises better statistics, and more insight into the wide range of disorders which cause cohesion defects.

14 Mar 2023

New class of oral drugs inhibits a diverse range of SARS-CoV-2 strains

The constant evolution of new COVID-19 variants makes it critical for clinicians to have multiple therapies in their arsenal for treating drug-resistant infections. Researchers have now discovered that a new class of oral drugs that acts directly on human cells can inhibit a diverse range of pathogenic SARS-CoV-2 strains.

13 Mar 2023

Study investigates the complex evolutionary history of jewel beetles' vision

Jewel beetles are striking insects, easily recognized by their vivid colors and metallic sheen. Possessing large, well-developed eyes, jewel beetles use vision and color for a range of different behaviors, including finding mates and host plants.

13 Mar 2023

Novel platform identifies genes that control biologic processes

Inflammatory neurological diseases, such as multiple sclerosis (MS), can arise when cell-to-cell communication between cells in the central nervous system (CNS) goes awry. But exactly how this cellular crosstalk leads to the molecular changes that drive disease remain unknown.

13 Mar 2023