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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Investigating SARS-CoV-2 detection using Raman microscopy

Researchers investigated the specific intracellular signature of SARS-CoV-2 infection using Raman microscopy.

29 Mar 2022

Strand displacement mechanism in RNA appears to switch genetic expression from “on” to “off”

Similar to a light switch, RNA switches (called riboswitches) determine which genes turn "on" and "off." Although this may seem like a simple process, the inner workings of these switches have confounded biologists for decades.

29 Mar 2022

Japanese researchers discover new mechanisms of action by extracellular vesicles in lymphoma

Japanese collaborative research teams have discovered new mechanisms of action by extracellular vesicles (EV) for the development and malignant progression of lymphomas.

28 Mar 2022

Chaperone-mediated autophagy needed to protect against atherosclerosis

Revving up a process that slows down as we age may protect against atherosclerosis, a major cause of heart attacks and strokes.

28 Mar 2022

How malaria drugs could play a part in treating chemotherapy-resistant head and neck cancers

In this interview, we speak to Kirill Kiselyov, Ph.D, and Umamaheswar Duvvuri, M.D, Ph.D, from the University of Pittsburgh, about their latest research into hydroxychloroquine, a drug widely used to prevent and treat malaria, as a potential treatment for head and neck cancers.

28 Mar 2022

Biologists discover gene deletion behind abnormality in blood cancer cells

The mystery is being unraveled of why the control centers, or nuclei, of certain blood cancer cells have a distinctly odd shape.

27 Mar 2022

Researchers discover new pathway for DNA transfer in tumor microenvironment

University of Notre Dame researchers have discovered another way tumor cells transfer genetic material to other cells in their microenvironment, causing cancer to spread.

25 Mar 2022

Researchers characterize vaccines for infectious bronchitis virus

A new study characterized the genetic and immunological aspects of the infectious bronchitis virus (IBV) vaccines commercially used in Korea.

25 Mar 2022

A novel mRNA vaccine encoding delta RBD induces high neutralizing antibody titers

A team of international scientists has developed an mRNA-based coronavirus disease 2019 (COVID-19) vaccine encoding the receptor-binding domain (RBD) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) delta variant. The vaccine candidate has shown high efficacy in inducing neutralizing antibodies and protecting against delta infection in mice. The study is currently available on the bioRxiv* preprint server.

24 Mar 2022

New model reveals how antibodies navigate pathogen surfaces like a child at play

A new study shows how antibodies select the antigens that they bind to, as they navigate the surface of pathogens like coronaviruses.

24 Mar 2022

The intercontinental spread of high-pathogenic avian influenza A (H5N1) virus

Researchers aim to better understand the landscape movement of the avian influenza virus.

24 Mar 2022

Shorter course of antibiotics associated with fewer antibiotic resistance genes

Antibiotic resistance is a growing problem worldwide that threatens the efficacy of available treatments and can lead to extended hospital stays and increased mortality.

24 Mar 2022

Tuberculosis perturbs epigenetic processes to promote premature cellular aging

Tuberculosis (TB) is a potentially serious infectious disease caused by a type of bacterium called Mycobacterium tuberculosis.

24 Mar 2022

Spinal fluid sampling could provide data about tumors sooner than MRIs

Treatment for glioma has long relied on MRI imaging to track tumor markers and treatment response.

24 Mar 2022

Study finds that Omicron variant preferentially uses the endosome pathway through mutation in the spike protein

A recent study assessed the role of the SARS-CoV-2 Omicron spike H655Y mutation on viral entry pathways.

24 Mar 2022

World Tuberculosis Day 2022: an interview with Dr. Maxine Caws

For World Tuberculosis Day 2022, News Medical spoke to Dr. Maxine Caws to raise awareness of this infectious disease.

24 Mar 2022

Impact of polystyrene microplastic particles on freshwater organisms

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23 Mar 2022

Study uncovers a gene that strongly associates with breast cancer patient's treatment outcomes

A multidisciplinary team of researchers from Roswell Park Comprehensive Cancer Center and Kaiser Permanente Northern California have identified the first pharmacogenomic marker for anthracyclines and HER2-targeting drugs, two commonly used breast cancer chemotherapies.

23 Mar 2022

Predicting the risk of some common diseases in preimplantation fertilized embryos

A new study uses a novel strategy for whole-genome reconstruction by using parental genome sequencing and sibling embryo genotyping.

23 Mar 2022

Researcher wins three NIH grants to tackle mosquito-borne viruses

West Nile virus, Usutu virus, Zika virus, and St. Louis encephalitis virus are all transmitted by mosquitoes and cause a significant threat to human health.

23 Mar 2022