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Tag: "adult" at biology news

Infants with Rare Genetic Disease Saved By Cord Blood Stem Cells

...faster correction of enzyme deficiencies than does adult bone marrow, she said. Stem cells from cord blood ...vel to the brain more rapidly than stem cells from adult bone marrow, and cord blood stem cells repair deficiencies in both the central and peripheral nervou...

Gene keeps neural cells on correct developmental path

...inside developing cells. Then, studies showed that adult neurons uniquely lack a protein that permanently turns off neuronal genes in the rest of the body's cells. Now, it turns out that precursor nerve cells contain that same repressive protein after all. In fact, the protein directs the complex network ...

Breakthrough isolating embryo-quality stem cells from blood

...extract and isolate embryo-quality stem cells from adult blood for the first time. This new technique could...e world. Any alternative source, such as voluntary adult donations, could spark a boom in new cures. Scientists have known for some time that stem cells exi...

Stealth Worms May Improve Insect Pest Control

...ment for the EPN to grow and multiply. One or more adult generations live entirely inside the decaying insect. The third stage infective juvenile is the only one that can live outside the insect host. Numbering about 150,000 strong or more, these juveniles exit the dead larva, carrying the bacteria, and lo...

'Smart drug' targets deadly brain cancer

...owed tumor growth in more than one-third of the 65 adult patients who tried it. The same research team also developed a screening technique to help predict which patients will respond best to this treatment. Mayo researchers will present these findings at the 2005 American Society of Clinical Oncology (AS...

Bee mites suppress bee immunity, open door for viruses and bacteria

...ion," says Cox-Foster "Yang has seen as many as 11 adult mites feeding off of one bee. Other researchers ha...lnerable to infection. The bee mites transfer from adult bees to late stage larva. The virus can be transferred through many different pathways. "This syste...

Human Eggs Can Develop From Ovarian Surface Cells In Vitro

...varian surface epithelium (OSE) cells derived from adult human ovaries. Oocytes derived from the culture of...e established dogma on the fetal origin of eggs in adult human ovaries. It is now well established that fetal mammalian eggs originate from somatic stem cel...

An (ecological) origin of species for tropical reef fish

...ngly, that wasn't the case." Mitochondrial DNA of adult fish and larvae from three locations in the Caribbean and from three locations in Brazil showed much clearer genetic differences within, rather than across, the two sides of the Amazon barrier. Genetically similar fish were found in ecologically simi...

Scientists use manufacturing methods to reconstruct mastodon

...e it will be the only display in the world with an adult male and an adult female mastodon shown together." It will also recognize the American Mastodon as Michigan's state fo...

U. Iowa researchers improve Huntington's disease symptoms in mice

...ent. It is not known if the protein is critical in adult brain cells. The RNAi molecule used in Davidson's...estion that still needs to be addressed is whether adult neurons can tolerate and benefit from a partial reduction of both the toxic and the normal protein. ...

Fungus Effective Against Winged Termites

...pliae that is highly effective against alates, the adult swarming form of the termite. The invasive Formosan termite causes hundreds of millions of dollars in damage and control costs each year. Emerging in late April through June, the winged adults fly briefly before they drop to the ground, shed their w...

Researchers Closer To Helping Hearing-Impaired Using Stem Cells

...ransform, in the laboratory, stem cells taken from adult bone marrow into cells with many of the characteri...- found in the ear. The results suggest that these adult stem cells could be used to treat deaf patients in the future, said Dr. Hashino, an associate profes...

Beneficial Beetles Battle Pesky Saltcedar

...rval stage or has matured into a quarter-inch-long adult beetle. Besides disrupting the natural surroundings needed by native plants, birds, fish and other forms of life, saltcedar plays havoc with farm roads and fields. For example, when rivers and streams overflow their banks, saltcedar bushes can trap ...

Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development

...ep over a period of months until they reach normal adult levels. As the newborns grow, neither mothers nor ...vior at birth with amounts gradually decreasing to adult levels. In fact, past findings that sleep deprivation for two to three weeks can be lethal in rats a...

Alien woodwasp, threat to US pine trees, found in N.Y.

...and identified by a Cornell University expert, the adult female alien is the only one of its kind ever discovered in the eastern United States. The discovery of a single specimen of Sirex noctilio Fabricius, an Old World woodwasp, raises red flags across the nation because the invasive insect species has ...

Mice brains shrink during winter, impairing some learning and memory

...In one set of experiments, the researchers used 20 adult male white-footed mice. Using artificial light, so... winter," Nelson said. In a second experiment, 16 adult male white-footed mice were kept in short or long days for 14 weeks, after which they were sacrifice...

Fragile US vaccine system needs improvement despite dramatic gains in health over past century

...he system faces additional challenges posed by the adult immunization program, the need for adequate research and development and the requirement of biopreparedness. Walter A. Orenstein, director of the Emory Program for Vaccine Policy and Development and associate director of the Emory Vaccine Center at ...

Fat's fate depends on its source

...f 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 Medicine. "The current study supports the notion that the source of fats affects their physiology. New fats are required to burn fat normally...

Stem cell therapy successfully treats heart attack in animals

... which is designed to test the safety of injecting adult stem cells at varying doses in patients who have r...stem cell in an early stage of development, called adult mesenchymal stem cells, to avoid potential problems with immunosuppression, in which every human's i...

Researchers discover stem cell 'guide' that may be key for targeting neural stem cell treatments

...heir stem cell progenitors during development, the adult brain maintains at least some regions where neural...us guidance molecules for migrating neurons in the adult brain," Zhou said. "We are learning that molecules, like PK2, which direct the movement of neurons a...

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