Techno Blender
Digitally Yours.
Browsing Tag

dna

Ancient DNA Reveals Down Syndrome in Past Human Societies

Researchers have discovered evidence of Down Syndrome and Edwards Syndrome in ancient DNA, tracing back to between 2,500 and 5,000 years ago, revealing these individuals received care and were appreciated within their societies. They found burials with grave goods and within settlements, suggesting a societal acceptance, and plan to expand research on how ancient societies treated individuals with such conditions.Burial practices indicate that individuals with Down Syndrome and Edwards Syndrome were recognized as members…

Ancient DNA Analysis Uncovers the Lost Rituals of the Bell Beaker People

Recent research on early Bronze Age burials in Luxembourg and Britain has uncovered genetic evidence of familial relationships within prehistoric communities, indicating that children were buried with their biological mothers or close relatives. This study, highlighting the transition from collective to individual burial customs among Bell Beaker communities, emphasizes the significance of kinship in their burial practices and suggests a patrilineal descent system. The image above depicts the skeletal remains of an adult…

‘Bad’ cholesterol gene silenced without altering the DNA sequence

By silencing the gene responsible for regulating ‘bad’ cholesterol without altering the primary DNA sequence, researchers have shown that it’s possible to use epigenetic editing to treat diseases rather than conventional DNA-breaking gene editing technology, which risks unintended effects.Because identical twins develop from a single fertilized egg, they have the same genome, the entire set of genetic material found in an organism. So, any differences between them, even in traits with a significant genetic component – say…

Ancient DNA Tells a New Story of Human-Neanderthal Coexistence

Human bone fragment from the new excavations at Ranis. Credit: Tim Schüler, TLDAA genetic study of a German archaeological site reveals that modern humans lived in Northern Europe 45,000 years ago, overlapping with Neanderthals, and altering our understanding of early human history in the region.A genetic analysis of bone fragments unearthed at an archaeological site in central Germany shows conclusively that modern humans — Homo sapiens — had already reached Northern Europe 45,000 years ago, overlapping with Neanderthals…

Syphilis-Like Diseases Were Already Widespread in America Before the Arrival of Columbus

Evidence of syphilis in ancient Brazilian bones disproves the notion that Columbus introduced the disease to Europe, indicating that syphilis-like diseases existed globally long before the 15th century. Above is a skeleton at the site in Jubuicabeira II, Brazil. Credit: Dr. Jose FilippiniScientists from the Universities of Basel and Zurich have identified the genetic traces of the bacterium Treponema pallidum in the skeletal remains of individuals who passed away in Brazil around 2,000 years ago. This finding represents…

Ancient DNA reveals children with Down syndrome in past societies. What can their burials tell us about their lives?

Credit: Unsplash/CC0 Public Domain After analyzing DNA from almost 10,000 people from ancient and pre-modern societies, our international team of researchers have discovered six cases of Down syndrome in past human populations. Our results, published today in Nature Communications, show people with Down syndrome lived in ancient populations. Although

Unlocking the Secrets of Soil Microbes to Improve Climate Predictions

Microbe models leverage extensive genomic data to power soil-carbon simulations. Credit: Illustration by Victor O. LeshykScientists are using the DNA from soil microbes to model how they function and use carbon, ultimately helping to advance the accuracy of climate models.Climate models are essential to predicting and addressing climate change, but can fail to adequately represent soil microbes, a critical player in ecosystem soil carbon sequestration that affects the global carbon cycle. A team of scientists led by the…

Ancient DNA Reveals First Known Case of Edwards Syndrome in Prehistoric Humans

A groundbreaking study analyzing ancient DNA has revealed instances of Down and Edwards syndrome in prehistoric human remains, dating back as far as 4,500 years. This research indicates that individuals with these conditions were valued and integrated members of their ancient societies, offering new insights into the treatment and recognition of chromosomal disorders in history. Above are the remains of individual “CRU001”, who the researchers discovered had Down syndrome. The remains were found at a site in Spain dating…

Bloodborne pathogens quickly ID’d by melting their DNA

A new technique, which involves melting bacterial DNA found in blood samples, could deliver diagnoses of potentially fatal infections faster than ever before. Results may be obtained in a few hours, instead of days.Ordinarily, in order to see if harmful bacteria are present in someone's bloodstream, a sample of their blood is placed in a growth medium in a Petri dish. If the bacteria are indeed in the blood, they will proceed to grow. It can take anywhere from 15 hours to several days, however, before they've grown to…