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Just write, don’t check This is again one of those which gets the media all hyped out, without checking the facts; yesterday’s headlines all sounded like this: ‘“Wanted: ‘Adventurous woman’ to give birth to Neanderthal man — Harvard professor seeks mother for cloned cave baby” – newspapers like the Daily Mail were all over it. […]
Exactly 50 years ago, Cambridge researchers Watson and Crick published a monumental paper that for the first time described the intertwined double helix DNA structure which carries the fundamental genetic code for life. The discovery led to an explosion of advancements in the fields of genetics and health, but also in chemistry or computing. Now, researchers, […]
Researchers at Duke University studied the telomeres – the tip of chromosomes that protect them – in a group of children and found that those who had experienced trauma had their telomeres shorter than those that hadn’t. These chromosome tips, which can be viewed akin to shoelace tips, have been linked by scientists with aging […]
Scientists at UC San Diego have finally collected the fruits of their decade-long labor after they managed to genetically engineered algae that can produce complex antibiotics that prevent cancer, otherwise extremely expensive to develop in laboratories. Cheaper treatment would thus be possible, that’s not only limited to cancer, but a slew of other afflictions otherwise treatable would expensive designer-drugs. […]
Some of the human waste we flush out each day could become valuable research material – a potent source of brain cells to analyze, something extremely important for neurodegenerative diseases studies. The technique, described in Nature Methods doesn’t involve embryonic stem cells, which have serious drawbacks when transplanted such as the risk of developing tumours. […]
Some scientists alter genes and breed glow in the dark puppies, others breed pineapples that also taste like coconut, like Australian horticulturalists at Queensland’s department of agriculture. The fruit of their 10 years labor of love was quickly dubbed the “piña colada pineapple” by the press, since it tastes like the two main ingredients of […]
For the first time ever, researchers at at Cambridge and Cardiff, have identified and compiled a list of damaging or disease associated DNA variants in the human genome. The researchers found that an average healthy individual carries 400 potentially damaging DNA variants. Most such variants should be found as genetic research provides more refined results. Scientists have known […]
Europe’s largest minority group, the Romani people have migrated from northwestern India, a new genetic study shows. The Romani, also known as the Roma, or Romi (depending on the language) have been originally called “gypsies” in the 16th century, because of their widely spread origin and because they were thought to come from Egypt. However, […]
Popular scientific consensus says that DNA code is identical in every cell of our bodies. A new study from Yale University that could pose extreme far reaching consequences in the field tested a highly controversial hypothesis that claimed genetic variations are widespread through out the body. The researchers found that this claim is true. For […]
The Hydra is a tiny animal that can be found in just about any freshwater pond, just a few millimeters long, that has attracted the attention of scientists for years now due to its extraordinary regenerative abilities. The Hydra is consider to be biological immortal – it does not die from old age – although […]
Single cell amoebae can remember, make decisions and anticipate change, urging researchers to redefine what we perceive as intelligence as soon as possible. For gardeners, they are usually a pest, for some hikers, a nice view, and for researchers, they are protists, a taxonomic group reserved for “everything we don’t really understand,” says Chris Reid […]
According to a new study conducted by Professor Gerald Crabtree, who heads a genetics laboratory at Stanford University in California, humans have peaked their intellectual capacities thousands of years ago, and now we are in a slow, but certain, state of decline. The provocative theory comes from one of the leading minds in genetics, and […]
The origins of vision is a widely debated subject, since genetic relationships between early animals capable of sight are inconsistent. A team of researchers has conducted an extensive computer analysis that tests every proposed hypothesis on the origin of vision to date, and found a common ancestor dating from 700 million years ago. Their findings […]
Strangely enough, it was computer simulation that provided the mathematical support for the grandmother hypothesis – a famous yet controversial theory which suggests adult humans have longer lifespans as a result of grandmother babysitting. Longevity genes The simulation indicates that without any estimate of the brain size, an animal with a chimp-like lifespan can evolve […]
Barley is a key ingredient in beer, the third most popular drink in the world after water and tea, an industry which currently amounts to $300 billion a year. The quality of the barley greatly influences the savor of beer, so by growing better quality barley we might be able to brew a beer that’s […]
Be tall, be thin, be beautiful. The media has made sure we’re constantly bombarded by such imperatives, and aside from frustrations, some people have gone to such extremes to fit popular media expectations that they end up hurting themselves. This is, sadly, most evident in the case of women, where eating disorders or anorexia are frequently […]
Graphene is the strongest material ever discovered by man, and naturally its applications has been extended to a variety of fields – most recently genetics. University of Texas at Dallas scientists have used advanced manipulation techniques to shrink a sheet of graphene to the point that it’s small enough to read DNA. This successful attempt now opens […]
These little spiny African mice can do something no other mammal can: they completely regenerate damaged tissue, a feat once thought impossible. They may not look as impressive as Wolverine, but they held quite the surprise: Acomys kempi and Acomys percivali have skin so brittle and easily torn that one can only ask… why? What […]
In a remarkable feat of science, scientists at Harvard University have surpassed seemingly insurmountable technological challenges have managed to take over the behavior of a lab worm. Using precisely targeted laser pulses at the worm’s neurons, scientists were able to direct it to move in any directions they wanted, and even trick it in thinking […]
We often like to think us humans have achieved a remarkable standard of efficiency and development – but a look at the animal life around us is often enough to humble us. Replicating bacteria and physics The common gut bacteria, Escherichia coli (E. coli, in short) typically takes about 20 minutes to duplicate itself in […]
A feline genetic study has revealed that a particular gene variation in a cat’s chromosome is responsible for the stripped fur so many cat lovers adore. According to the researchers, the same gene gives cheetahs, the house cat’s larger and wilder cousin, stripes instead of the regular spots. The research was lead by Stephen O’Brien of […]
Culturing mammalian cells is currently the only way to make some complex proteins used in certain drugs; but growing such cultures is an extremely difficult and delicate job, because they can harbor human pathogens and must therefore be kept under strict temperature conditions. It’s a difficult job, but it’s definitely worth it; take a look […]
No person is the same, thanks to genetic variation. While skin color, hair, or body proportions are elements that might be exactly the same for two persons, you can be sure that one’s face is unique – even in identical twins, if you look extremely closely. While life style, body weight, diet, accidents and so […]
Dr. Jay Bradner, a physician and chemical biologist at the Dana-Farber Cancer Institute in Boston, makes beating cancer sound easy – darn easy! Through the wonderful information that epigenetics science has delivered in the past decade, he believes cancer can be defeated simply by re-writing its genetic information such that it forgets that it’s a cancer, and […]
Two recently released studies by teams of international researchers sequenced the genomes of two major strains of the parasitic disease known as malaria. Their findings show that malaria is a lot more resistant than previously thought, but at the same time helps paint a broader picture which will certain aid in developing more effective treatment, […]
In what can only be described as a milestone in biological and genetic engineering, scientists at Stanford University have, for the first time ever, simulated a complete bacterium. With the organism completely in virtual form, the scientists can perform any kind of modification on its genome and observe extremely quickly what kind of changes would […]
Researchers have analyzed the DNA from 7,000-year-old bones of two cavemen unearthed in Spain, and have managed to sequence fragments of their genomes, making them the oldest modern human specimens ever found thus far. Ironically, the researchers found that the cavemen bear little genetic resemblance to people living in the region today, instead sharing ancestry with current populations […]
A newly published researchers by scientists at University of California Davis and Cornell University explains why beautiful, perfectly ripped tomatoes, that one can typically pick up from a local supermarket, are ironically less tastier than homegrown tomatoes, which look less appetizing. I had the good fortune of spending most of my early childhood in the […]
Genetic diversity is what keeps species evolving, helps them tackle diseases and is a prime pre-requisite for natural selection. Understanding genetic diversity is imperitive for scientists in the field, whether it’s about identifying associations between genetic variants and diseases or highlighting interesting aspects of human population history. One of these aspects is geographical location. Remarkably, an international […]
You too can get a genetic test kit for your samples! A new university-based project seeks to investigate cryptic species, such as yeti for example, in an attempt to show if these species can actually exist or not; and they want to do this through DNA research. Researchers from Oxford University and the Lausanne Museum […]
Another breakthrough in biology and medicine was reported, as scientists were able, for the first time, to take skin cells from patients who had suffered heart failure and make them repair the cardiac muscle. The technique had been tested only on rats and it seemed decades could pass until it would become suitable for humans, […]
Horses are arguably one of the most helpful animals man has ever managed to domesticate. At first they were used as source of meat and milk, but it was soon evident that horses were a lot more suited as labor animals than as a direct food medium. Important agricultural advancements were made possible thanks to horses, and […]
Skin and hair color are most inherited from parents, and usually hint pretty accurately to a person’s ethnicity. Dark skin and hair are most common in the regions around the Equator, however natives of the Solomon Islands, an archipelago east of Papua New Guinea, seem to defy common expectations, as around 10% of the population […]
Scientists at UK Medical Research Council’s Laboratory of Molecular Biology have successfully managed to create an artificial version of both DNA and RNA, fundamental biomolecules crucial to life. The synthetic nucleic acids are capable of encoding information and passing it on to the next generation, even with changes in the code with the help of an […]
A study performed last year observed that identical twins, who share 100% of the same genetic material and had the same upbringing, expressed a very similar attitude towards civic behavior and care-giving, whilst fraternal twins, who share 50% of their genes and, again, had the same upbringing, did not necessarily share the same pro-social attitude […]
When the brain deems an experience meaningful enough, it will transfer that information from short-term storage, where typically information like where you put your car keys or the phone number of a person you just met gets stored temporarily, to your long-term memory, offering the possibility to be accessed at a later time. Neurologists claim […]
There are a number of factors that lead to obesity, the most obvious of which is of course eating too much, without burning the excess fat by exercising. Fact is, there are some people in the world who no matter how much they’d eat, they never seem to be satisfied, constantly consumed by a sense […]
A remarkable research whose findings recently published in the journal Cell, concludes that intense physical exercise leads to chemical alteration of the DNA, turning certain genes on and off. In fact, individuals which lead a relatively sedentary lifestyle changed the DNA in their muscle fibers almost immediately, after a strenuous 35 minute work-out. It’s important […]
Researchers have completed the great apes family’s genetic library after they sequenced the genes of a western lowland gorilla, joining the already-sequenced genomes of humans, chimpanzees and orangutans. Scientists found that gorillas, which share 98% of their genes with humans, are a lot more related to humans than previously thought, as well as surprising genetic differences which […]
For a number of years now researchers have been studying the sirtuin gene and the proteins encoded in it as it is believed to be directly linked to prolonged lifespan. A myriad of individual studies were performed with mixed results, and so far hundreds of millions have been allocated for research in this direction. A […]
Good news for men, and especially women: the Y chromosome, which holds the male sex determining genes in most mammals, including humans, is not going extinct, as some claim, as a new research found that the diminishing gene numbers have come to a halt and will remain this way. Sex chromosomes come in pairs, such […]
Since the advent of modern DNA sequencing technology, biological research and discoveries has been dramatically accelerated. It’s absolutely instrumental to genetic research nowadays, which among other great achievements, has lead to the sequencing of the human genome. The methods and technologies involved in DNA sequencing are terribly complex, however, and usually require sophisticated research laboratories. […]
Last year, researchers at the Max Planck Institute for Evolutionary Anthropology, produced a draft of the Denisova genome, in order study in what proportion they relate to homo sapiens sapiens. The Denisovans, are a new group of hominids, discovered just two years ago, which is believed to have lived around 30,000 years ago, alongside Neanderthals and […]
Darwin’s theory of natural selection illustrates perfectly what evolution is all about, the survival of the fittest if you will. It’s because of natural selection that a crocodile has an armor-like skin to protect it against enemies, a chameleon can change its color and camouflage itself for protection and hunting or humans evolved a more […]
In Greek mythology, the chimera is a fire breathing beast composed of several animal parts (lion body, snake-head tail, a goat head hanging from its back and so on), which has spurred the imagination of man for thousands of years. Though it is fairly clear that such an abomination never existed, apart from the infinite recesses of […]
In a recent post I was telling you about Russian and Japanese researchers working together with the purpose of cloning a mammoth from bone marrow DNA recently found in Siberia. However, many researchers are extremely skeptical about this, including some of the world’s leading experts. “C’mon, it’ll never happen. Not in my lifetime,” said Webb […]
Scientists from Russia and Japan searching in the permafrost soil in Siberia have found mammoth remains so well-preserved that they believe they will actually be able to clone it, using its bone marrow. Teams from Sakha Republic’s mammoth museum and Japan’s Kinki University have embarked on this quest, vowing to find how this can be […]
A stroke of pioneering science, researchers have managed to restore hearing to a significant level in guinea pigs by using gene therapy, bolstering hope for a similar procedure to cure human deafness in the future. The therapy works by promoting the regeneration of hair cells in the cochlea, the part of the inner ear which […]
Amidst of all the talks and protest against stem cell treatment and companies shutting down, nature has found its own way of treating diseases with stem cells. When a pregnant mouse mother, for example, has a heart attack, her fetus donates some of its own stem cells to help and cure. Researchers started working on […]
Scientists from the École Polytenchnique Fédérale de Lausanne (EPFL), with the aid of colleagues from the Salk Institute for Biological Studies and the University of Lausanne, managed to improve the muscle constitution of mice by knocking out genetically a “co-repressor” of the DNA transcription process. The end product are mice that are faster, stronger and healthier […]
