tissues 2 10

Tag: "tissues" at biology news

Stem cells can repair torn tendons or ligaments

...e that BMP and Smad proteins are involved in other tissues such as nerve and liver, suggesting that this type of delivery technology may be helpful for other degenerative diseases. In an accompanying commentary in the Journal of Clinical Investigation, Dwight A. Towler and Richard Gelberman from the Washin...

Researchers identify genes in fruitflies that may shed light on human cancer spread

...st cancer cells than they do with studies of other tissues in the fruitfly, according to the study's senior author, Denise Montell, Ph.D., a professor in the Department of Biological Chemistry. The 353 genes identified in this study include some that are known to play a role in both border cell migration in...

APS lecturer shows rare video of 'teacher-student' immune cell interactions in live animal

...004. von Andrian's research has focused on how tissues of the immune system recruits T cells dendritic c...rly 19th century, allows scientists to look at the tissues and cells of live animals. The technology has been in use for generations. But particularly advanced...

UC San Diego biologists solve plant growth hormone enigma

...missing or misshapen parts, or deformations in the tissues that transport water and nutrients throughout the ...ed. Not so, because turning auxin off in specific tissues of the plant led to defects in those tissues, while the rest of the plant appeared normal. "Knowing...

Major obesity gene is 'lost in the shuffle'

...e black in color. The gene is widely expressed in tissues throughout the body, so it presumably plays a yet-to-be-defined role in additional biological processes. The ASIP gene has been characterized in fish, chickens, and various mammals, but no detailed investigation of ASIP has yet been performed in...

New human retrovirus originated in mice

...the chronic inflammation from infection of stromal tissues may play a role in triggering such cancers. DeRisi observed that "it may be that men who are so-called RNASEL-mutant are just more susceptible to viruses in general, and this susceptibility has little to do with their cancer. Nevertheless, the fact ...

UC Davis study finds HIV hiding from drugs in gut, preventing immune recovery

...efforts to destroy it by hiding out in the mucosal tissues of the intestine. They also found that HIV continues to replicate in the gut mucosa, suppressing immune function in patients being treated with antiretroviral therapy--even when blood samples from the same individuals indicated the treatment was work...

Researchers map out networks that determine cell fate

...principles govern cell type determination in other tissues such as skin, brain and intestine. "We see elements of this framework of primary and secondary cell-fate determinants throughout the hematopoietic system," said study author Harinder Singh, the Louis Block Professor of Molecular Genetics & Cell...

Radioactive scorpion venom for fighting cancer

... the body is rapidly excreted in the urine. "Other tissues will receive some dose," he says, "but the vast majority of the dose is delivered to the cancer cells." To prevent the radioactive compound from being absorbed by the thyroid, which has a voracious appetite for iodine, the patients were given large ...

Study finds how organs monitor themselves during early development

...may it be a gonad, a liver, or a thymus, different tissues contribute to the organ, and the growth of the different tissues has to be coordinated both during normal development and during regeneration." Tapping into that ...

First human study confirms that immune cells can be a primary cause of bone loss in gum disease

...sed on the T and B cells in the patient's gingival tissues were functionally sufficiently potent to induce bone destructive cells (osteoclasts) in a laboratory culture system, in spite of the elevated presence of B and T lymphocytes. Since it has never been reported that any bacteria per se invade and resorb...

A switch between life and death

...ays Barry Thompson, "If the pathway is too active, tissues overgrow because too many cells divide and too few...NA called bantam, makes this link. Without bantam, tissues grow too slowly and remain smaller than normal. The amount of bantam produced by the cell directly d...

How plants avoid feeling the burn

...g distances from locations that could damage plant tissues and photosynthesis. During photoprotection, the consensus school of thought was that carotenoids--the source of the orange pigments in carrots and Vitamin A -- become oxidized, or charged, losing an electron in the process. Now, Fisher and other A...

DOE JGI sequences, releases genome of symbiotic tree fungus

...e," said DOE JGI Director Eddy Rubin. "The woody tissues of trees act as one of the world's most important terrestrial sinks for CO2, making trees an important stabilizer of carbon in the earth's environment," said Francis Martin, INRA's Laccaria project leader. "The steady rise of global atmospheric CO2 ...

With few factors, adult cells take on character of embryonic stem cells

...of mice resulted in tumors containing a variety of tissues representing the three primary types found in mamm...in embryos eventually give rise to all an animal's tissues and organs. Following injection into blastocysts, iPS cells also contributed to mouse embryonic de...

Matrilin-3 gene discovered to prevent onset of osteoarthritis

...s, while matrilin-2 and -4 are also found in other tissues throughout the body. There has been a link between mutated forms of matrilin-3 and hand osteoarthritis, as well as skeletal disorders such as multiple epiphyseal dysplasia (MED), a disorder that begins in childhood and can include malformation of the...

Mass. General study finds potential ovarian cancer stem cells

...r ovarian cancer ?surgical removal of all involved tissues followed by chemotherapy ?usually appears successful, but treatment-resistant tumors recur in the vast majority of patients, leading to a five-year survival rate of less than 30 percent. Those factors and other observations suggested that cancer ste...

Stanford doctors advance in bid to turn mice stem cells into blood vessels

...ring. Tissue engineering, the growth of organs and tissues outside the body for replacement, has achieved successful transplantations of a variety of human tissues including skin and corneas. Most recently, a team of researchers at Wake Forest University in Winsto...

Slow-frozen people? Latest research supports possibility of cyropreservation

...tudy ?seems to support the possibility that cells, tissues and even the entire human body could be cyropreser...e, cryopreservation involves preserving organs and tissues for transplantation or other uses. Only certain kinds of cells and tissues, including sperm and embr...

New GI technologies improve internal organ visualization

...ls and injection of contrast to help visualize the tissues showed no complications, nor did the angiography or thermal ablation procedures. EUS-guided fine-needle aspiration, or removal of heart tissue for examination, was conducted in the two human patients, also showing no arrhythmia or other complication...

1 2 3 4 5 6 7 8 9 10