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Tag: "reside" at biology news

Protein translation in sperm

...he cellular changes that occur in sperm while they reside in the female reproductive tract ?providing a new ...int at www.genesdev.org. After ejaculation, sperm reside in the female reproductive tract for several hours. During this time, a number of biochemical change...

Berkeley researchers lay groundwork for cell version of DNA chip

...the sugar complexes called "oligosaccharides" that reside on the surface of every cell, and a reaction between two types of molecules, a nitrogen-containing azide, and a phosphorous-containing phosphine, as a means of attaching probes and reagents to cell surfaces, or to link different molecules inside of t...

Tandem transcripts team together

...They found that genes involved in TIC events often reside closer together than other gene pairs in the genom...involving genes called PIP5K1A and PSD4 , which reside side by side on human chromosome 1. These genes produce a fusion product that, during the course of...

Markers of gene, protein, or micro-RNA activity predict outcome in prostate and colorectal cancers

...s of origin are the 10-20 immortal stem cells that reside at the bottom of each crypt. The job of these stem cells is to replenish the entire lining of the colon that turns over every five days. However, a mutation in these stem cells produces mutant daughter cells, disorganized tissue architecture, and inc...

AIDS-related cognitive impairment exists in two separate forms

...s of origin are the 10-20 immortal stem cells that reside at the bottom of each crypt. The job of these stem cells is to replenish the entire lining of the colon that turns over every five days. However, a mutation in these stem cells produces mutant daughter cells, disorganized tissue architecture, and inc...

Stem cells can repair torn tendons or ligaments

...ne engineered mesenchymal stem cells (MSCs), which reside in the bone marrow and fat tissues, to express a protein called Smad8 and another called BMP2. When the researchers implanted these cells into torn Achilles tendons of rats they found that the cells not only survived the implantation process, but ...

Bones hold the key to blood renewal

...ls, which can give rise to any kind of blood cell, reside in special 'stem cell niches' nestled in the bones' inner walls. Inside these sheltered nurseries, the stem cells remain undifferentiated; with the help of other nearby cells, they hang on to their juvenile qualities. Only when they leave the niches ...

DOE JGI sequences, releases genome of symbiotic tree fungus

... generate large amounts of biomass or store carbon reside in the way that they interact with soil microbes known as mycorrhizal fungi, which excel at procuring necessary, but scarce, nutrients such as phosphate and nitrogen. When Laccaria bicolor partners with plant roots, a mycorrhizal root is created, res...

Adult stem cells are touchy-feely, need environmental clues

...vered that mesenchymal stem cells, which regularly reside in the bone marrow as part of the body's natural regenerative mechanism, depend on physical clues from their local environment in order to transform into different types of tissue. The researchers were even able to manipulate stem cells by changing ...

New tiger report release: Tiger habitat down from just a decade ago

...f tiger habitats ever done finds that the big cats reside in 40 percent less habitat than they were thought to a decade ago. The tigers now occupy only 7 percent of their historic range. This landmark study, commissioned by the National Fish & Wildlife Foundation's Save The Tiger Fund and produced ...

Dolphins at risk

Bottlenose dolphins that reside in designated Special Areas of Conservation throughout the UK, including Dorset, Anglesey and Cornwall, might be at risk from pile driving. The frequency range of pile driving noise could interfere with their ability to communicate, find food and avo...

South Pacific plant may be missing link in evolution of flowering plants

Bottlenose dolphins that reside in designated Special Areas of Conservation throughout the UK, including Dorset, Anglesey and Cornwall, might be at risk from pile driving. The frequency range of pile driving noise could interfere with their ability to communicate, find food and avo...

Triple threat polymer captures and releases

...lative to the host.. "We want to know where they reside because that should tell us why this material is providing a favorable environment at room temperature but at elevated temperature for some reason everything is being expelled rapidly,," she said. "We don't know if there is some reorganization o...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...and organization of cell membranes-what components reside next to each other, how many of each there are and how they respond to their environment-may reveal the secret lives of cells in both health and disease. The researchers report their findings in the Sept. 29 issue of the journal Science. ''The organ...

Regulating the nuclear architecture of the cell

...her euchromatin or heterochromatin. Most genes reside in euchromatin, which is of relatively low density and where the DNA is more accessible to the machinery of gene transcription. By contrast, heterochromatin is dense and contains relatively few genes; most of the DNA in heterochromatin, including num...

Drug can quickly mobilize an army of cells to repair injury

...th a related agent called G-CSF. Angiogenic cells reside mainly in the bone marrow, and when mobilized they can circulate in the bloodstream, homing to sites of injury and helping repair and regrow blood vessels that bring oxygen and nutrients to tissues. "Like AMD3100, G-CSF can bring these beneficial ce...

Ocean sampling yields environmental sources of coral symbionts

... it is critical to recognize where these symbionts reside in the ocean environment. In the new work, the researchers succeeded in identifying Symbiodinium in the water column as well as on ocean-bottom substrates. Most importantly, the researchers also demonstrated that a subset of Symbiodinium found in...

Researchers seek to design first treatment for neuroAIDS

...hers said. HIV also "activates" immune cells that reside in the brain. In response, those cells set off chain reactions that bring other immune cells rushing into the brain to fight infection. The same reactions cause inflammation (swelling) that presses on brain tissue, reducing function. Thus, researcher...

Living view in animals shows how cells decide to make proteins

...ecisions, Garcia-Blanco said. For example, neurons reside next to glial cells in the brain, yet they express different proteins in different amounts, and detecting such differences in cell cultures can be exceedingly difficult, he said. "This is a powerful tool to apply to mouse genetics to learn when an...

Cloned mice created from fully differentiated cells, a milestone in cloning research

...lones must be derived from adult stem cells, which reside in a specific area of each tissue and remain quiescent until they are activated by the presence of disease or tissue injury. Yet, if this were true, Drs. Yang and Cheng point out, the results of their studies would have found the adult stem cells to ...

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