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Researchers take a close look at invisible communities of microbes in the mouth

Most people know that good oral hygiene - brushing, flossing, and regular dental visits - is linked to good health. Colorado State University microbiome researchers offer fresh evidence to support that conventional wisdom, by taking a close look at invisible communities of microbes that live in every mouth.

2 Mar 2020

Ancient DNA analysis provides insight into genetic history of Sardinia

A new study of the genetic history of Sardinia, a Mediterranean island off the western coast of Italy, tells how genetic ancestry on the island was relatively stable through the end of the Bronze Age, even as mainland Europe saw new ancestries arrive.

24 Feb 2020

Generating genomes and encoding new abilities into artificial DNA

A new study to be presented at the American Association for the Advancement of Science (AAAS) in February 2020 will report on the generation of the world’s first artificially created bacterial genome using a digital design algorithm along with the synthesis of DNA building blocks on a large scale. This genome takes form by chemical rather than template-based synthesis. The research is published in the journal Proceedings of the National Academy of Sciences.

16 Feb 2020

Marine bacteria genes can help track environmental changes caused by humans

The gene expression of marine bacteria can be a valuable sensor for discovering environmental changes caused by humans. Furthermore, bacteria help to clean our oceans and hopefully they could be used to purify drinking water from harmful environmental toxins in the future.

13 Feb 2020

Coronavirus - pandemic or not?

The coronavirus strain called 2019-nCoV has been causing widespread illness in China, with 28,276 affected by the virus and over 565 deaths worldwide, mostly in China. As of now, it is already more deadly than the SARS epidemic that raged between 2002 and 2004.

6 Feb 2020

New vaccine designs could reduce rates of dangerous bacterial disease

New research has found that rates of disease caused by the bacterium Streptococcus pneumoniae could be substantially reduced by changing our approach to vaccination.

3 Feb 2020

Sperm microbiome revealed with RNA sequencing

A new study reports the first-ever detailed description of the human sperm microbiome, using newer RNA sequencing techniques that are capable of discriminating between sperm RNA and that of bacterial contamination or colonization.

2 Feb 2020

Researchers locate specific mutation in the gene responsible for Chédiak-Higashi syndrome

Humans and animals are made up of trillions of cells, and each cell contains DNA specific to that individual. Therefore, identifying DNA that causes genetic disorders gives researchers and clinicians a better understanding of how to treat inherited diseases and possibly prevent the diseases from being passed down to future generations.

30 Jan 2020

Quitting smoking reverses lung cell damage even for decade-long smokers

It’s never too late to quit smoking, as a new study shows the lung’s ability to heal and regrow damaged cells caused by cigarette smoking, even if they smoked for decades.

30 Jan 2020

Persistant industrial chemical modifies gut microbiome of mice

An industrial chemical -- phased out since 2002, but previously used in stain and water-repellent products and firefighting foam -- alters the gut microbiome of mice and could have implications for human health, according to an international team of researchers.

21 Jan 2020

New technique accurately predicts which melanomas are likely to recur and spread

For most patients, melanoma begins with a small, pigmented spot on their skin that they notice starts to change.

20 Jan 2020

New melanoma test may better predict recurrence and improve patient care

Researchers at Brigham and Women's Hospital have developed a new technique that improves on the current method for assessing whether primary melanoma is likely to recur and spread, following surgical removal.

20 Jan 2020

New framework developed to estimate the growth of individual cancer

Cancer is a disease of evolution: cancer cells continually grow and change, and new mutations allow them to spread, even as treatments have continued to improve.

10 Jan 2020

Scientists identify 'modifier gene' that determines severity of inherited kidney disease

Scientists have developed a new way to understand complex genetic diseases and have identified a gene that modifies the severity of inherited kidney disease, paving the way for personalised treatments.

9 Jan 2020

Patient care could be affected as health research faces a crisis

Health research faces a crisis that could impact on patient care, says a new report led by 10 prominent figures in the NHS and academia.

8 Jan 2020

Hobbyist DNA services may be vulnerable to genetic hacking

Online services that allow users to upload their genetic information, research genealogy and find lost relatives may be vulnerable to a sort of genetic hacking, according to two geneticists at the University of California, Davis. A paper describing the work is published Jan. 7 in the journal eLife.

7 Jan 2020

Nanopores – the key to identifying amino acids in proteins

DNA and RNA sequencing has become the new watchword for the biological researchers, as this tells them exactly what is going on at cellular level in health and disease. However, it is a partial revelation unless we also know what is happening at the level of proteins as well.

19 Dec 2019

New method identifies harmful bacteria in less time and at a very low cost

A new bacterial identification method, called ON-rep-seq, examines selective, strain-specific fragments of the bacterial genome, allowing the generation of results that earlier required DNA sequencing of the entire bacterial genome or tedious approaches like pulsed field gel electrophoresis, which previously has been the golden the standard for strain-level typing of microorganisms.

18 Dec 2019

Extrachromosomal circular DNA can contribute to cancer development in children

Cancer development is associated with the gradual accumulation of DNA defects over time. Thus, cancer is considered an age-related disease.

17 Dec 2019

Penn researchers track defective sperm epigenome linked to male infertility

One out of eight couples has trouble conceiving, with nearly a quarter of those cases caused by unexplained male infertility. For the past decade, research has linked that infertility to defective sperm that fail to "evict" proteins called histones from DNA during development.

16 Dec 2019