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Tag: "humans" at biology news

Researchers find new genes necessary to make embryo

...r embryogenesis in C. elegans have counterparts in humans whose roles are often unknown. For example, human counterparts of four of the newly identified genes are known to be associated somehow with disease, and mutations in two of these are associated with tumors. The C. elegans study suggests specific cel...

Nanoparticles offer new hope for detection and treatment

...s of the nanoparticles in diagnosis and therapy in humans will be tested in clinical trials in about one and a half to two years. The spherical nanoparticles are a few thousand times smaller than the dot above this "i," yet each can carry about 100,000 molecules of the metal used to provide contrast in MRI...

Buying Time Through Hibernation on Demand

... ability that all mammals have -- potentially even humans -- and we're just harnessing it and turning it on ...ience fiction, dozens of documented cases exist of humans surviving prolonged hibernation-like states with no lingering physical or neurological damage. For e...

U-M team recovers ancient whale in Egyptian desert

... ability that all mammals have -- potentially even humans -- and we're just harnessing it and turning it on ...ience fiction, dozens of documented cases exist of humans surviving prolonged hibernation-like states with no lingering physical or neurological damage. For e...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...ns or sex drive. Brain systems were activated that humans share with other mammals. So the researchers think...wn of the Albert Einstein College of Medicine. "We humans are built to experience magical feelings like love, but our findings don't diminish the magic in any...

Small species back-up giant marsupial climate change extinction claim

...ive shift in climate rather than by the arrival of humans who over hunted animals or destroyed habitats by burning the landscape. The findings, which were unearthed with the help of amateur fossil hunter, Ian Sobbe, are of particular significance because the Darling Downs fossil deposits are among the youn...

Brain Scans Reveal How Gene May Boost Schizophrenia Risk

...H study also for the first time confirms in living humans that activity of the front brain area, the prefrontal cortex, is regulated by dopamine production in the midbrain, which, in turn, is regulated by these two common gene variants. Schizophrenia, a severe mental illness marked by hallucinations and de...

Study: 'homemade' gene expression technology unreliable

...ant as scientists delve deeper into the genomes of humans and other animal species in their quest to find cures for a variety of diseases. "Human genome mapping has made the production of these microarrays possible," Spencer said. "Our interest is in how environmental factors ?drugs, pollutants, workplace ...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...ant basic research," he says. "Like all creatures, humans perceive with limited spectra and sensory modes. We bias research with the unconscious and incorrect assumption that other animals 'see' the world as we do. Every time we discover otherwise, it expands the horizons of scientific knowledge and sends u...

The evolutionary triumph of flower power

...inators like bugs and birds, it is their appeal to humans that accounts for the incredible variety of shapes...many domesticated flowers have been so selected by humans that nature's pollinators ?the bugs and birds ?no longer find them attractive. So the job of propaga...

What's really making you sick? Plant pathologists offer the science behind Sick Building Syndrome

...niversity, Kingsville, TX. "Mold has been known to humans since ancient times and it is impossible to eliminate mold from our lives," Skaria said. "However, we now have the technological ability to detect mold growth in its infancy to control it." Apart from mold, dust and other antigens also cause SBS. Th...

New World founders small in number

...rs spread out from Africa - descendants of archaic humans crossed the Bering land bridge from Siberia to North America. Several lines of evidence support this model, but that's where the consensus ends and the details are hotly debated. In a paper published in the premier open-access journal PLoS Biology, J...

Biochemists report discovery of structure of major piece of telomerase; implications for cancer

...not must be significant since it is conserved from humans to marsupials, birds and marine animals," Theimer said. Feigon's laboratory studies the three-dimensional structures of DNA and RNA, and how proteins and DNA and RNA recognize one another to switch genes on and off in cells. Her laboratory has worke...

Undesirable expatriates: Preventing the spread of invasive animals

...mals make great pets, others have valuable pelts-- humans have been moving animals between Europe and North ... a much higher invasion success rate." Given that humans are the primary vehicles for transporting animals across the ocean, it's not surprising that animal ...

Scientists discover that three overlapping signals in embryo help get the backbone right

... and belly is a milestone for frogs as well as for humans and other vertebrates, occurring as it does at the beginning of the process of gastrulation, which sees front and back, head and tail, left and right established and the first appearance of a recognizable body plan. If this step fails, the embryo eve...

NIAID begins clinical trial of West Nile virus vaccine

... City in 1999. The virus usually is transmitted to humans through the bite of a mosquito that has been infected after feeding on an infected bird or animal. The virus also can be spread through blood transfusions, organ transplants and breastfeeding, as well as from mother to child during pregnancy. Most pe...

Genetic therapy reverses nervous system damage in animal model of inherited human disease

...alpha-mannosidosis or AMD, an inherited disease in humans that causes severe mental retardation and skeletal...t it may be possible to achieve similar results in humans with as few as 20 to 30 injections in each of the two hemispheres of the brain," Wolfe said. "We bel...

Advancements In Genomics Foster Deep Sea Discoveries

... different from the skin of the planet in which we humans reside,?said Bartlett, who is part of the Scripps Marine Biology Research Division. “They live in a world where temperature, for the most part, doesn’t vary very much, but pressure as they move up and down the water column can. They sense that pressu...

Friendly bacteria in humans may protect against HIV

...ve identified good bacteria already living in some humans that target and trap HIV and may protect against i...solated oral and vaginal lactobacilli from healthy humans and tested the ability of different strains to bind to baker's yeast, another microorganism coated w...

Oldest fossil human protein ever sequenced

... from the diets of the omnivorous primates such as humans and Neanderthals, orangutans and chimpanzees. Therefore, the ability to form proteins without the presence of vitamin C may have been an advantage to these primates if this nutrient was missing from their diets regularly. This research opens up the ...

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