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Tag: "culture" at biology news

Wisconsin scientists grow critical nerve cells

...l. The spinal motor neuron cells have survived in culture in the lab for more than three months, says Xuejun Li, an assistant scientist in Zhang's group, and the lead author of the study. To determine the exact recipe for motor neuron growth, Li foraged labs worldwide to obtain the growth factors and other...

W.M. Keck Foundation funds study of friendly microbes

...cing the genomes of new species, without having to culture them in test tubes. They are also developing new computational methods for mining genome sequence data so that bacterial species can be more rapidly and accurately classified. A large publicly accessible database will be established that provides de...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...ed in the field. "We didn't look atwhat grows in a culture dish, we looked at the RNA of samples directlyfrom the field," Spear said."We've never before known what microbes were living in Yellowstone hotsprings, and now we do," Pace said.A novel suite of instruments was used to gather data, some of which had...

Current human embryonic stem cell lines contaminated UCSD/Salk team finds

...d contaminated by Neu5Gc evenwhen grown in special culture conditions with commercially availableserum replac...yonicstem cells that had been grown in traditional culture conditions. Thescientists further confirmed the presence of Neu5Gc with a processcalled electrospray...

Scientists Replicate Hepatitis C Virus in Laboratory

...e laboratory. The ability to replicate HCV in cell culture will allow researchers to better study the life cy...t was then placed into human liver cells in a cell culture medium. The NIDDK scientists found evidence of HCV proteins and HCV RNA within the human liver cell...

Transplantation Of Monkey Embryonic Stem Cells Reverses Parkinson Disease In Primates

...when cultured under specificconditions. These same culture conditions, technically simple andefficient, were recently applied to primate embryonic stem cells andresulted in the generation of large numbers of DA neurons. In theircurrent JCI study, Jun Takahashi and colleagues generated neurons frommonkey embr...

Scientists rid stem cell culture of key animal cells

...r cells were an important ingredient in the mix of culture materials required to keep stem cells in their und...ll-conditioned medium." "It is important that the culture of human ES cells be simplified so that the average scientist can use them without extensive prior t...

First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers

... breast cancer cells, the researchers report. Cell culture studies suggest they can reproduce that success in a wide range of other cancers, too. "What's unique about these analogues is that they do all this without affecting primary tumor cells, or their blood supply," Dr. Huang said. "To our knowledge, th...

UCSD researchers maintain stem cells without contaminated animal feeder layers

...ournal Stem Cells, the study shows that laboratory culture media enriched by a human protein called activin A...ut this added another measure of complexity to the culture system, Hayek noted. In recent studies in Wisconsin and Massachusetts, new feeder layers were develo...

Estrogen-like Component of Plastic Stimulates Growth of Certain Prostate Cancer Cells

...sed cancer cell growth.“The results we see in cell culture in response to BPA are ready to bemoved to appropriate animal models next,?said Dr. Knudsen. The effectof the environmental non-steroidal BPA on human prostate cancer tumorimplants in laboratory animal models will shed additional light onwhether the ...

UCSD team discovers specialized, rare heart stem cells in newborns

... in a newborn heart, into millions of cells in lab culture dishes," Laugwitz said. "This implies that the isl1+ cells potentially could be harvested from an individual's heart tissue, multiplied in a laboratory setting, then re-implanted into the patient. Furthermore, the developmental lineage marker which i...

How an AIDS-Related Cancer Unleashes Inflammation

...blood vessels that KS produces," he said. In cell culture studies, the researchers found evidence of an “activation loop,?by which kaposin B activation of MK2 promotes even further MK2 activity by other proteins. The over-production of cytokines resulting from kaposin B's binding to MK2 creates inflammation...

Children's taste sensitivity and food choices influenced by taste gene

...mical Senses Center. In addition to genes, age and culture also contribute to taste preferences, at times ove...preference in adults. The forces of experience and culture appear to have overridden the genetic effect." Some mothers and their children may live in differen...

Advances in the characterisation of the oyster mushroom genes

...responsible for this activity and investigated the culture in which each of these genes expresses itself. Five genes of one family The PhD work resulted in the isolation of five genes of the oyster mushroom, of the Florida variety, and the expression thereof giving rise to different cellobiohydrolases, thu...

New lab technique identifies high levels of pathogens in therapy pool

...reported. Health inspectors typically capture and culture microorganisms found in such environments to assess the number of pathogen species, an approach that misses many airborne bacteria that are difficult to grow in a lab environment. The new approach allowed researchers to survey more than 1,300 ribosom...

Promising new West Nile therapy cures disease in mice

...body was several hundred times more potent in cell culture tests than antibodies obtained from people who had recovered from West Nile virus infection. ...

New understanding of DNA repair may pave way to cancer treatments

...ize melanoma to various treatments, both in tissue culture and in animal models. "Melanoma is usually resistant to chemotherapy, but we found that by inhibiting ATF2, it became more sensitive to treatment," Ronai said. Consequently, his laboratory developed a small peptide that interferes with ATF2 function...

New project aims to make large-scale lobster farms feasible

...nd growout of juveniles that will help to make the culture of this species a reality, " she said. Spiny lobster is an ideal target for commercial culture due to its high value and limited availability from wild capture, mostly using traps. Each year, 3 t...

Human Eggs Can Develop From Ovarian Surface Cells In Vitro

...from adult human ovaries. Oocytes derived from the culture of OSE cells developed in vitro into mature eggs suitable for fertilization and development into an embryo. These findings, published today in the Open Access journal Reproductive Biology and Endocrinology, offer important new strategies for use in i...

Embryonic Stem Cells Treated With Growth Factor Reverse Hemophilia In Mice: UNC Researchers

... in humans. Mouse embryonic stem cells treated in culture with a growth factor and then injected into the liver reverse a form of hemophilia in mice analogous to hemophilia B in humans, the new study shows. A report of the study appears in the journal Proceedings of the National Academy of Sciences today (F...

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