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Tag: "specialized" at biology news

Molecular biology fills gaps in knowledge of bat evolution

...ats. These microbats - also known for their highly specialized echolocation - originated about 52 to 50 million years ago during a lush period of significant global warming in a region that is now North America. This latest research helps fill gaps in the evolutionary history of one of the most diverse group of...

Source of molecular triggers in cutaneous T cell lymphoma identified

... CTCL cells require antigenic stimuli delivered by specialized dendritic cells of the epidermis, referred to as Langerhans cells (LC), in order to replicate. To determine the nature of the activating antigen, Carole Berger, a research scientist in dermatology set up a physiologic laboratory system mimicking the...

Priming embryonic stem cells to fulfill their promise

...to help turn embryonicstem cells into the types of specialized cells being sought as possibletreatments for dozen...xed todifferentiate, or mature, into precursors of specialized cell typesfound in the body.Embryonic stem cell differentiation is complex and far from fullyunderst...

The secret lives of whales

... bodies and skeletons provide an energy source for specialized communities of animals that can last 50 to 100 yea... scientists understand how life has diversified in specialized habitats in the deep-sea. Deep-sea vent tube worms may have originated from shallow-water species, u...

Molecular machine may lead to new drugs to combat human diseases

...sly believed to have no function actually may play specialized roles in cell behavior. While humans have introns, they don't have Group I introns. Many pathogens that cause human diseases, however, do have Group I introns, including the HIV opportunistic infections pneumocystis, a form of pneumonia, and thrush,...

Muscle-targeted gene therapy reverses rare muscular dystrophy in mice

...ase. The DNA coding for the enzyme was linked to a specialized DNA "promoter" region that restricted its activity to muscle. The investigators either injected the viral particles into the muscle or injected it intravenously in Pompe disease mice. Six weeks after muscular injection with the virus containing the ...

Plant hemoglobins: Oxygen handlers critical for nitrogen fixation

...oglobins accumulate in root nodules and give these specialized organs their distinctive red color. Legume root nodules accommodate bacteria, called rhizobia, that reduce atmospheric nitrogen to ammonia, which is subsequently used by the plant for growth and colonization of nitrogen-poor soils. Symbiotic nitrogen...

Placenta Is A Rich Source Of Blood Stem Cells

... increase in number without giving rise to mature, specialized cells. ''There must be something unique about the placenta that nurtures blood stem cells and discourages them from differentiating,'' says Dr. Stuart Orkin, a Howard Hughes Medical Institute investigator at Children's and DFCI, and a senior investi...

Open microfluidic and nanofluidic systems

...eral days before the sample has been returned from specialized laboratories. Other applications include customized chips for space travel in order to monitor microbes inside spacecraft or to detect life on other planets. An obvious prerequisite for such miniaturized labs are appropriate microcompartments for th...

Gene Vaccine Protects Mice Against Development Of Her2/neu Breast Cancer

...n.In addition, the VRP-neu preferentially homes to specialized immunesystem cells known as dendritic cells, and infects them. Inside,VRP-neu produces high levels of the HER2/neu protein, which thedendritic cells then display on the outside of their cell surface. Thisis, in fact, a neat trick, says Lachman, becau...

A comprehensive response to HIV could prevent 10 million AIDS deaths in Africa by 2020

...n.In addition, the VRP-neu preferentially homes to specialized immunesystem cells known as dendritic cells, and infects them. Inside,VRP-neu produces high levels of the HER2/neu protein, which thedendritic cells then display on the outside of their cell surface. Thisis, in fact, a neat trick, says Lachman, becau...

Zebrafish may hold key to understanding human nerve cell development

... development of sensoryhair cell precursors -- the specialized neurons found in the inner earof humans that make hearing possible. This research increases ourunderstanding of how nerve cells develop and whether it may be possibleto regenerate these types of cells in humans one day," said TatjanaPiotrowski, Ph.D....

Harmful Bacterium Commonly Found in Poultry May Survive Refrigeration and Frozen Storage Combined

... development of sensoryhair cell precursors -- the specialized neurons found in the inner earof humans that make hearing possible. This research increases ourunderstanding of how nerve cells develop and whether it may be possibleto regenerate these types of cells in humans one day," said TatjanaPiotrowski, Ph.D....

Circles Of DNA Might Help Predict Success Of Stem Cell Transplantation

...t processes immature "precursor" immune cells into specialized T cells. T lymphocytes are specialized immune cells carrying proteins called receptors on their surface. The target that a T cell recognize...

GenMAPP 2.0 released

... development of sensoryhair cell precursors -- the specialized neurons found in the inner earof humans that make hearing possible. This research increases ourunderstanding of how nerve cells develop and whether it may be possibleto regenerate these types of cells in humans one day," said TatjanaPiotrowski, Ph.D....

UCSD team discovers specialized, rare heart stem cells in newborns

... first evidence of cardiac progenitor cells ?rare, specialized stem cells located in the newborn heart of rats, m...er, the UCSD team discovered a small number of the specialized stem cells remained embedded in a region of the newborn heart called the atrium. They also determine...

Supercomputer Dedicated To Bioengineering, Computational Biology Installed

...lloch said the drive to build ever faster and more specialized supercomputers has required computational biologists to continually reinvent their modeling software. "It's not new that science has been developing large computational challenges, but what is new is the commoditization of supercomputing," said McCul...

UCLA launches $20 million stem cell institute to investigate HIV, cancer and neurological disorders

...ticated Good Manufacturing Practice (GMP) suite, a specialized laboratory that is critical for the safe growth and manipulation of stem cell lines. Compliance officers oversee all research in the GMP suite, which must follow stringent federal guidelines for reintroduction of manipulated cells into the human body...

A human parasite with a streamlined mitochondrion

...hat in human mitochondria exists in many different specialized versions. In humans, these diverse carriers are needed to import and export the varied chemicals required, or produced, by our complex mitochondria. The presence of a single carrier in the Entamoeba mitosome means that it must be able to do far fewer...

Marburg haemorrhagic fever in Angola update

...vehicles, protective equipment, disinfectants, and specialized staff, have been rapidly communicated and immediately met. WHO and its partners are nonetheless prepared and organized to continue the outbreak response for several additional months, if this is needed. An important present goal is to transfer skill...

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