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Tag: "evidence" at biology news

Stem cells in bone marrow replenish mouse ovaries

...of the journal Cell. This finding provides direct evidence to overturn a long-held dogma in reproductive biol...same research team reporting the first preliminary evidence that ovaries of mice can be renewed with new eggs in adulthood. The new study suggests an unexpecte...

Circulating stem cells play small role in lung repair

... lung tissue, Zander said, and this study provides evidence of differentiation. Researchers examined lung biopsy specimens from seven male transplant recipients who had received lungs from female donors. They analyzed the origins of type II pneumocytes, a stem cell involved in the complex processes of lung r...

Candida albicans Genome Fully Annotated

... lung tissue, Zander said, and this study provides evidence of differentiation. Researchers examined lung biopsy specimens from seven male transplant recipients who had received lungs from female donors. They analyzed the origins of type II pneumocytes, a stem cell involved in the complex processes of lung r...

Fat's fate depends on its source

...l metabolism requires so-called "new" fat--further evidence that a healthy diet should include an adequate source of fat. "De novo synthesis of fat is an energy-expensive process whose role in adult mammals is poorly understood," said study senior author Clay Semenkovich, of Washington University School of M...

Program finds lost genes in nematode genome

...Base includes thousands of predicted genes without evidence from complementary DNA (cDNA) or expressed sequence tags (EST), which help locate genes. These predicted genes are derived by a combination of a program from the previous generation and some curation by human experts. Brent and his colleagues say tha...

Newest HIV drugs should be used with FUZEON(R)

... without FUZEON. This adds to the growing body of evidence for the powerful "FUZEON effect" which has been seen across the RESIST 1 & 2, POWER 1 & 2 and TORO 1 & 2 studies, where adding FUZEON was seen to almost double the number of patients reaching undetectable, when combined with one of the la...

UI researcher studies deafness in fruit flies, humans

...lecule works in the human ear," he says. Previous evidence suggested that fruit flies and humans rely on the same genes to develop their auditory organs, which in the fruit fly is in the antenna. Eberl's research shows that at least one molecular component specialized for hearing function, myosin VIIA, is co...

Fungus-farming termites descend from an African rain forest Eve

... Thailand and Malaysian Borneo, now provide strong evidence that termite agriculture originated in African rain forest. Their reconstruction of ancestral habitats is based on the habitat of living species and analysis of DNA-based reconstructions of termite relationships. The rain forest origin of fungus-gro...

Study Finds Moderate Hypothermia A Safe Treatment For Traumatic Brain Injury In Kids

...exacerbate the injury. Adult research has produced evidence that hypothermia may limit some of these deleterious metabolic responses. The trial, which is the only multi-center clinical trial involving children underway in the United States, was conducted to determine whether moderate hypothermia (32-33 degre...

Bioinformatics reveals new gene regulation system

...tor genes clustered together, providing additional evidence that the regulatory picture drawn by the team was correct. Israeli researchers simultaneously showed through 'wet' biology experiments in Streptomyces bacteria that a transcription factor from this family represses Nrd gene expression in the living ...

Researchers find first evidence of venom system in extinct mammal

...te skull fossil that they now believe is the first evidence of an extinct mammal with a venom delivery apparatus. The research will be published June 23, 2005 in Nature. "Our discovery shows that mammals have been much more flexible in the evolution of venom delivery systems than previously believed," said F...

Scientists reveal how disease bacterium survives inside immune system cell

...f-destruct in a process known as apoptosis. Recent evidence suggests that this process is vital to resolving human infections. A. phagocytophilum is unusual in that it can delay apoptosis in human neutrophils, which presumably allows some of the bacteria to replicate and cause infection. "This particular ba...

A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs

...cordings. Both instances, therefore, provided more evidence that temporal patterns serve as an important cue for the frogs. Warkentin created similar temporal patterns out of computer-generated nonspecific sound, or "white noise." Again, the snake-like pattern of white noise caused more eggs to hatch prematu...

Arthritis: What Wnt wrong?

...such as colon, lung, and breast. However, mounting evidence also points to its involvement in arthritic joint disease. Comprehensive analysis of the entire Wnt gene family in the progression of arthritis has been lacking until now. Researchers at Shinshu University School of Medicine in Nagano, Japan, examin...

Achilles heel of the herpes virus possibly found

...t not eliminate the virus. And, there's increasing evidence that HSV may damage the nerve cells in which it hides between outbreaks, possibly contributing to neurological disease. In a presentation Sunday at the International Congress of Virology and in two new papers in the Journal of Virology, U-M research...

Study shows humans have ability to track odors, much like bloodhounds

...the truffle forests, the dog (or pig) is king. The evidence presented here suggests that humans are every bit as well equipped to carry out the search." Forty years ago, Nobel Prize laureate Georg von Bekesy claimed that humans had the ability to localize odors, based on experiments in 1964 with human subjec...

Montreal researchers probe the genetic basis of memory

... of the journal Nature, provides the first genetic evidence that protein synthesis is critical for the regulation of memory formation. This new discovery is the fruit of an international collaboration. The work of McGill researchers Nahum Sonenberg, Karim Nader, Wayne Sossin and Claudio Cuello, Jean-Claude ...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...ity of Jerusalem has provided, for the first time, evidence of the remarkable dynamics responsible for the formation of zooplankton aggregations. The new findings indicate that zooplankton are passively drifting with the current, as their name implies ("planktos" translates to "drifting" in Greek), but only i...

Deep sea algae connect ancient climate, carbon dioxide and vegetation

...t million years ago. They also present intriguing evidence that the sharp drop in carbon dioxide level, between 33 - 25 million years ago, prompted the origin of economically important land plants that are sensitive to atmospheric carbon dioxide levels, such as corn and sugarcane. "The onset and stabilizati...

Invasive parasite destroying fish species

...t million years ago. They also present intriguing evidence that the sharp drop in carbon dioxide level, between 33 - 25 million years ago, prompted the origin of economically important land plants that are sensitive to atmospheric carbon dioxide levels, such as corn and sugarcane. "The onset and stabilizati...

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