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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).

Vaccines used to prevent monkeypox

A new review published in The Lancet Infectious Diseases aimed to describe the efficacy of vaccinia virus-based smallpox vaccines against the current monkeypox outbreak.

18 Sep 2022

Needle-free jet injection of novel COVID-19 DNA vaccine shows promise in animal model

In a recent study posted to the bioRxiv* server, researchers at the United States Army Medical Research Institute of Infectious Diseases evaluated the immunogenicity of a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) deoxyribonucleic acid (DNA) vaccine, nCOV-S(JET), in rhesus macaques

18 Sep 2022

Researchers identify universal features shaping organelle gene retention

Mitochondria are compartments – so-called "organelles" -- in our cells that provide the chemical energy supply we need to move, think, and live.

16 Sep 2022

New mechanism may prevent the natural aging of immune cells

A new mechanism that slows down and may even prevent the natural aging of immune cells – one of the nine 'hallmarks of aging' – has been identified by an international team led by UCL scientists.

15 Sep 2022

Gut microbiome associated with multiple sclerosis risk and disease development

An international research consortium led by UC San Francisco scientists has shown significant differences between the gut bacteria profiles of multiple sclerosis (MS) patients and healthy individuals, as well as between MS patients receiving different drug treatments.

15 Sep 2022

Concern over two cases of monkeypox-related neurological complications in the U.S.

A new study published in the CDC's Morbidity and Mortality Weekly Report analyzed two people with encephalomyelitis associated with monkeypox disease in Colorado and DC during the current outbreak.

15 Sep 2022

Defensosomes versus COVID-19

In a recent study published in the journal PLoS Biology, researchers investigated the role of angiotensin-converting enzyme 2 (ACE2)-containing defensive exosomes, or 'defensosomes' against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections.

14 Sep 2022

Scientists harness the potential of bacteria to help create synthetic cells with lifelike functionality

Scientists have harnessed the potential of bacteria to help build advanced synthetic cells which mimic real life functionality.

14 Sep 2022

Scientists identify two distinct subtypes of obesity

A team led by Van Andel Institute scientists has identified two distinct types of obesity with physiological and molecular differences that may have lifelong consequences for health, disease and response to medication.

14 Sep 2022

What is the impact of COVID-19 treatments targeting intracellular Neu1?

In a new study, researchers assessed the impact of targeting intracellular Neu1 on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.

14 Sep 2022

Newborns get routine heel blood tests, but should states keep those samples

Close to 4 million babies are born in the United States every year, and within their first 48 hours nearly all are pricked in the heel so their blood can be tested for dozens of life-threatening genetic and metabolic problems.

14 Sep 2022

The effect of cannabis exposure on the entire sperm DNA methylome in rats

A new study examines how cannabis use among men could cause heritable effects on male fertility.

14 Sep 2022

MIT researchers use new technique to gather insight into repetitive protein sequences

About 70 percent of all human proteins include at least one sequence consisting of a single amino acid repeated many times, with a few other amino acids sprinkled in. These "low-complexity regions" are also found in most other organisms.

13 Sep 2022

Final results of the PATHFINDER study by GRAIL on multi-cancer early detection tests announced

A new press release announced the results of their interventional PATHFINDER study on the early detection of cancer using multi-cancer early detection (MCED) blood tests.

13 Sep 2022

Researchers join forces to 'map' specific variations in more than 25 key cardiac disease genes

One in 100 people have genetic variations that can cause potentially life-threatening heart conditions, including high cholesterol (lipid disorders), heart muscle disease (cardiomyopathies), and abnormal heart rhythms (arrhythmias).

13 Sep 2022

Study uncovers how air pollution can trigger lung cancer in individuals with no history of smoking

A new study revealed a link between air pollution and lung cancer in non-smokers.

13 Sep 2022

World Sepsis Day 2022: Raising Sepsis Awareness with Sepsis Research FEAT

For World Sepsis Day 2022, News Medical speaks to Colin Graham, COO of Sepsis Research FEAT, about the importance of sepsis awareness, research, and potentially life-changing breakthroughs.

13 Sep 2022

Study reveals two distinct types of obesity with physiological and molecular differences

12 Sep 2022

Novel tests detect common cancer signals across over 50 types of cancer

Cancer doctors, care providers and payers need to get ready for a major shift in early cancer detection that will affect almost every stage of cancer diagnosis and treatment. New data supporting the accuracy of multi-cancer early detection (MCED) blood testing (1), presented at the ESMO Congress 2022, have major implications for future cancer care provision, said Fabrice André, ESMO 2022 Scientific Co-Chair.

12 Sep 2022

Label-free trace detection of bio-molecules by LI-SERS method

A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2022.210121 discusses label-free trace detection of bio-molecules by liquid-interface assisted surface-enhanced Raman scattering using a microfluidic chip.

9 Sep 2022