DNA News and Research

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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).

CD4 T cells are not to be blamed for pushing dengue fever from bad to worse

No one knows what makes a mild dengue viral infection morph into a severe and sometimes deadly dengue hemorrhagic fever/dengue shock syndrome.

26 Dec 2019

Inserting end-modified DNA fragments with CRISPR-Cas9 yields highest efficiency

University of Illinois researchers achieved the highest reported rates of inserting genes into human cells with the CRISPR-Cas9 gene-editing system, a necessary step for harnessing CRISPR for clinical gene-therapy applications.

23 Dec 2019

Ancestral-sequence reconstruction of FMO genes unveils structure of important enzyme

To disarm toxic substances, many organisms - including humans - possess enzymes called flavin-containing monooxygenases. Despite their importance, the structure of the enzymes has not been resolved, as the protein is too unstable to study in detail.

23 Dec 2019

Autism risk in children could be predicted by mutations in paternal sperm

Researchers from the University of California, San Diego, have found that mutations present in the sperms of the father could be predictors of autism in the offspring, in a landmark study. These mutations, if quantified could help ascertain the risk say the researchers. The new study appears this week in the latest issue of the journal Nature Medicine.

23 Dec 2019

Scientists develop 3D atlas of bone marrow to help study blood diseases

The bone marrow, which is the spongy and viscous tissue that fills the bone, is the site of blood cell formation or hematopoiesis. If the bone marrow doesn’t work properly, it can lead to many blood diseases, including leukemia, sickle cell anemia, and lymphoma, among others.

23 Dec 2019

New, faster and cheaper method to uncover genetic variants in single cells

Researchers led by the European Molecular Biology Laboratory in Heidelberg and the Center for Bioinformatics at Saarland University in Saarbrücken, Germany, have developed a cheaper and faster method to check for genetic differences in individual cells, which outperforms existing techniques with respect to the information received.

23 Dec 2019

NIH awards $1.2 million grant for studying biomolecular interactions to inform better drug design

Biomolecules -- carbohydrates, proteins, nucleic acids, and lipids -- form the foundation of life and are responsible for carrying out every process that occurs in our bodies.

23 Dec 2019

Research shows how the hepatitis D virus copies itself

A team of researchers has discovered how one crucial step occurs in the lifecycle of the hepatitis D virus (HDV), which causes the widespread and hard to treat liver inflammation called hepatitis D. The study, which was published recently in the Journal of Virology, could help develop antiviral therapy to control this disease.

22 Dec 2019

Genomic data can accurately and reliably predict stroke risk

Estimates based on genomic data predict stroke risk with an accuracy similar to, or greater than those based on clinical risk factors. This result implies that persons at high risk might benefit from more rigorous preventive measures.

21 Dec 2019

p53 may play a more important role in kidney cancer than previously thought

The p53 gene, which researchers had thought was less relevant in kidney cancer, may play an important role after all – a discovery that could lead to new treatments.

20 Dec 2019

Combined datasets can expedite the discovery and development of new cancer drugs

A comprehensive map of genes necessary for cancer survival is one step closer, following the validation of the two largest CRISPR-Cas9 genetic screens in 725 cancer models, across 25 different cancer types.

20 Dec 2019

New genetic score is similar or more predictive than common risk factors for stroke

A group of investigators from Australia, Germany, and the UK have shown that genetic data obtained from a single blood draw or saliva sample can be used to identify individuals at a 3-fold increased risk of developing ischemic stroke, a devastating condition and one of the leading causes of disability and death world-wide.

20 Dec 2019

Links between most human diseases and genetics are shaky at best

In most cases, your genes have less than five per cent to do with your risk of developing a particular disease, according to new research by University of Alberta scientists.

20 Dec 2019

Data results of NCI-MATCH trial in tumors with DNA mismatch repair deficiencies

Final results are published from an evaluation of 42 patients treated with the immune checkpoint inhibitor nivolumab in the large multi-arm precision medicine trial, NCI-Molecular Analysis for Therapy Choice (NCI-MATCH or EAY131).

20 Dec 2019

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

Connection between herpes virus and Alzheimer’s refuted

A new study has shown that unlike previous claims, there is no association between getting herpes infections and developing Alzheimer’s disease. The study from the researchers at the Baylor College of Medicine was titled, “Are HHV-6A and HHV-7 really more abundant in Alzheimer’s disease?” and was published in the journal Neuron.

19 Dec 2019

Experimental Zika vaccine improves fetal outcomes in rhesus macaque model

An experimental Zika vaccine lowered levels of virus in pregnant monkeys and improved fetal outcomes in a rhesus macaque model of congenital Zika virus infection, according to a new study in Science Translational Medicine.

19 Dec 2019

Edematous severe acute malnutrition linked to DNA modification

A group led by researchers at Baylor College of Medicine has identified significant differences at the epigenetic level - the chemical tags in DNA that help regulate gene expression - between two clinically distinct forms of acute childhood malnutrition known as edematous severe acute malnutrition (ESAM) and non-edematous SAM (NESAM).

19 Dec 2019

Domesticated animals hold the key to spread of viruses among humans and wildlife

Our domesticated animals - both pets and livestock - hold the key to the spread of viruses among humans and wildlife according to new research involving Swansea University.

19 Dec 2019