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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).

Study explains how liver regeneration may help treat liver disease in mice

Other vertebrates, such as fish and lizards, can regenerate organs more effectively than mammals. Salk researchers have discovered a mechanism to partially restore the young condition of liver cells, allowing them to repair damaged tissue at a quicker rate than previously thought.

29 Apr 2022

Researchers analyze leaf angle genetics for improved crop yields

Plants have long been the main source of nutrition. The demand for food production is always increasing as the human population grows exponentially. Since agricultural land is constrained, meeting this rising need will necessitate developing new ways to increase the productivity of existing crops.

29 Apr 2022

Scientists determine drug-resistant mold that infects human lungs

According to a recent study conducted by Imperial College London, drug-resistant mold is disseminated from the environment and affects the lungs of those who are susceptible.

29 Apr 2022

Study shows the importance of fluid flow in shaping the composition, activity of hydrothermal microbes

Most visitors to Paliochori Beach on the Greek island Milos may not be aware of the bay's shallow-water hydrothermal community, a veritable Greek salad of microbes, that is within snorkeling distance from the shoreline.

25 Apr 2022

Researchers discover a unique origin of severe pediatric brain cancer

A new cause of severe childhood brain cancer has been discovered by scientists.

25 Apr 2022

Researchers detect major contamination in organic vegetables, likely to cause fatal illness

According to a new study proposed at this year’s European Congress of Clinical Microbiology and Infectious Diseases (ECCMID) in Lisbon, Portugal (23–26 April, 2022), disease-causing amoebas that reside on natural leafy vegetables can preserve human pathogens such as Pseudomonas, Salmonella, and Helicobacter, posing a public health hazard. Dr Yolanda Moreno and colleagues from Spain’s Universitat Politècnica de València conducted the research.

25 Apr 2022

Scientists identify a new soil amoeba species in Chernevaya taiga

In the Chernevaya taiga, in the south of Western Siberia, scientists from St Petersburg University identified a new soil amoeba species Leptomyxa silvatica n. sp. with colleagues from Tomsk and Novosibirsk.

25 Apr 2022

National DNA Day 2022: an interview with Professor Matthew Cobb

To celebrate National DNA Day 2022, we spoke to science communicator Professor Matthew Cobb.

From The University of Manchester 25 Apr 2022

National DNA Day 2022: PacBio HiFi Sequencing Contributes to First Complete Human Genome

To celebrate National DNA Day 2022, News-Medical speaks to Jonas Korlach, Chief Scientific Officer of PacBio.

25 Apr 2022

Study underscores the crucial role of genomic profiling in diagnosing and grading brain tumors

Patients diagnosed with a type of brain tumor survived for longer when they were treated aggressively with surgery, radiation and chemotherapy.

22 Apr 2022

Study shows how whole genome sequencing test reveals details about cancer growth

Professor Serena Nik-Zainal of Cambridge University Hospitals (CUH) and the University of Cambridge headed a group of scientists that analyzed the whole genetic make-up or whole-genome sequencing (WGS) of over 12,000 NHS cancer patients in the largest research of its type.

22 Apr 2022

Researchers explore how tRNAs evolve in protein synthesis

In the process of protein synthesis, a peptide bond is formed between two amino acids that are bound to two different transfer RNAs (tRNAs). Researchers have long been perplexed as to how these tRNAs evolved to be so near to one another on the ribosome.

From Tokyo University of Science 22 Apr 2022

Little-known protein may play a role in frontotemporal lobar degeneration

Scientists have known for years that amyloid fibrils -; fibrous, ropelike structures formed by closely linked protein molecules -; are present in the brains of patients with Alzheimer's and Parkinson's diseases and likely play a role in the progression of these disorders.

21 Apr 2022