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Kiran Mazumdar-Shaw talks about India’s battle with Covid-19 In an interview with DNA, Kiran Mazumdar-Shaw, Chairperson and Managing Director, Biocon, talks about India’s battle with Covid-19 and how the country is faring with its vaccination program. She also discusses the need for more investment in the healthcare sector, the development of the biotechnology industry and the importance of innovation in tackling the pandemic. She emphasizes the need for collaboration between industry, government and civil society to effectively tackle the pandemic.
Woolly mammoth teeth reveal the world’s oldest microbial DNA | ScienceDaily
Scientists have uncovered microbial DNA preserved in mammoth remains dating back more than one million years, revealing the oldest host-associated microbial DNA ever recovered. By sequencing nearly 500 specimens, the team identified ancient bacterial lineages—including some linked to modern elephant diseases—that coexisted with mammoths for hundreds of thousands of years. These discoveries shed light on the deep evolutionary history of microbes, their role in megafaunal health, and how they may have influenced adaptation and extinction.
‘Rogue’ DNA rings identified as drivers of aggressive brain cancer
An international team of scientists has revealed how rogue rings of DNA that float outside of our chromosomes – known as extrachromosomal DNA, or ecDNA – can drive the growth of a large proportion of glioblastomas, the most common and aggressive adult brain cancer.
Micronutrient shortages shaped human DNA worldwide, study shows
Micronutrients, minerals that are part of the human diet in small amounts, may have influenced human evolution more than previously recognized. In a new study published Sept. 10 in the journal The American Journal of Human Genetics, researchers show how human ancestors from around the world developed various genetic adaptations in response to shortages and surpluses of minerals including iron, calcium, and zinc.
DNA from our ancient Denisovan ancestors may protect us from some tropical diseases
Malaria is one of the world's most widespread and deadliest parasitic diseases. But some people may have natural protection thanks to DNA inherited from an extinct group of archaic humans known as the Denisovans. New research has looked at specific Denisovan-derived genes that may protect against this and other tropical diseases.
DNA from old ants reveals a hidden insect apocalypse in Fiji | ScienceDaily
Insects are essential for ecosystems, but mounting evidence suggests many populations are collapsing under modern pressures. A new study used cutting-edge genomic techniques on museum specimens to track centuries of ant biodiversity across Fiji. The results reveal that nearly 80% of native ants are in decline, with losses intensifying in the past few hundred years as human activities expanded.
Uptake of DNA fragments from dying cells could redefine mammalian evolution and genomics
For decades, scientists have known that bacteria can exchange genetic material, in a process called horizontal gene transfer. This allows bacteria to rapidly evolve new traits, such as antibiotic resistance. A new study, led by Professor Indraneel Mittra at the Advanced Center for Treatment, Research & Education in Cancer, Mumbai, shows that this process may also happen in mammals—through fragments of DNA known as cell-free chromatin particles.
Astronauts welcome NASA's new 'ascans' | On the International Space Station Sept. 22-26, 2025 | Space
Expedition 73 crewmembers sequenced DNA and worked with virtual reality glasses this week, while also continuing to unpack cargo vehicles and congratulating NASA's 24th group of astronaut candidates.
Population bottlenecks cause decline of mammals' immunity, researchers find
Population bottlenecks caused by stark population loss due to illness or habitat destruction caused mammals' disease immunity to decline, according to a new study led by computational biologists in the Penn State School of Electrical Engineering and Computer Science. The finding comes from the first comparative study of genomic sequences—roadmaps of DNA instructions responsible for encoding how the body works—encoding immunity in 46 mammals.