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Tag: "growing" at biology news

Wisconsin scientists grow critical nerve cells

...row time frame, it was also critical to expose the growing stem cells to an array of complex chemical cocktai...owth factors and hormones - that provide the exact growing conditions needed to steer the cells down the correct developmental pathway. "You need to teach the ...

University of Manchester makes made-to-measure skin and bones a reality using inkjet printers

...hichare a few millimetres thick, which is fine for growing artificial skin,but if you wanted to grow cartilage, for instance, it would beimpossible," Professor Derby says.The key to the advance which Professor Derby and his team have made isthe innovative way in which they are able to pre-determine the size ...

Growth in the sea comes down to a struggle for iron

...g ingredient. And he went further than that. Since growing plants absorb carbon dioxide, a powerful greenhous...jected iron into the water and were monitoring the growing phytoplankton patch, roughly six by eight kilometers in size. "The patch changed quickly and consta...

Newly-discovered class of genes determines ?and restricts ?stem cell fate

...ere able to orchestrate complex events while never growing old." Epstein thinks that this concept may also be important for understanding the cell of origin for a number of tumors. Pax3 is known to be involved in some tumors, which adds evidence to the stem-cell origin for some cancers. This theory proposes...

Plants, animals share molecular growth mechanisms

... APR 2/3, which in turn triggers formation of new, growing actin filaments. Because some genes have survived through time as multicellular life evolved, they have been conserved in both plants and animals, Szymanski said. So, some of the plant proteins that comprise the ARP2/3 and the WAVE complexes are int...

A much-needed shot in the arm for HIV vaccine development

...andidatepipeline, improvements in animal models, a growing database fromclinical trials, and the availability of new quantitative laboratorytools that make comparisons among vaccine studies feasible." What isneeded, they argue, is a way of tying all of these opportunitiestogether, and their plan provides a m...

U-M scientist to talk about tissue engineering at AAAS

...n the broadest sense, tissue engineering refers to growing human tissue through artificial means. Typically it involves harvesting a small sample of cells, treating them in the lab, then reintroducing the cells into a damaged area, like a jaw bone damaged too badly to simply heal on its own. A tiny scaffold...

The transparent organism: EMBLEM and Carl Zeiss give labs a unique look at life

...technology as an ideal approach for satisfying the growing demand in highly resolved image information from living organisms. The products based on this technology will form a perfect match with our lines of confocal and multiphoton 3D-imaging systems," says Dr. Simon. The agreement between EMBL and Carl Ze...

The secret lives of whales

...ean teeming with whales. It also shows a steadily growing population, with drastic declines only showing up in recent history. “Whales have shown remarkable resilience to cataclysmic events - until the last one ?which is us,?says Palumbi. “Ice ages, sea level change and even loss of local food sources did n...

Female sex hormones play a vital role in defense against sexually transmitted diseases

...ion in vaccinated mice. "These studies add to the growing evidence that we need to promote more gender-specific medical approaches in future," she said. "We have to increase awareness in both the medical community as well as the public regarding sexually transmitted diseases and women." Extending these fin...

Mouse brain tumors mimic those in human genetic disorder

... pathway gliomas associated withNF1 typically stop growing after a few years. Moreover, they almostalways occur in children ?these tumors generally start growing inchildren younger than 5 years old and usually do not progress after age10. A similar pattern occur...

BRCA1 causes ovarian cancer through indirect, biochemical route

...emical signal that stops the epithelial cells from growing out of control. When that chemical signal disappea...pithelial cells don't get the message, and keep on growing and dividing. The result: ovarian cancer. This finding is actually good news for scientists and phy...

Scientists discover the cellular roots of graying hair

Few things about growing older are asinevitable and obvious as “going gray,?yet scientists have been unableto explain the precise cause of this usually unwelcome transformation.In a report posted today on the Web site of the journal Science,researchers from Dana-Farber Cance...

Fundamental Finding Yields Insight into Stem Cells, Cancer; Opens Door to Drug Discovery

Few things about growing older are asinevitable and obvious as “going gray,?yet scientists have been unableto explain the precise cause of this usually unwelcome transformation.In a report posted today on the Web site of the journal Science,researchers from Dana-Farber Cance...

Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.

Few things about growing older are asinevitable and obvious as “going gray,?yet scientists have been unableto explain the precise cause of this usually unwelcome transformation.In a report posted today on the Web site of the journal Science,researchers from Dana-Farber Cance...

U-M scientists find genes that control growth of common skin cancer

...eaguesturned Gli2 off, the BCC tumor cells stopped growing and wereeliminated by a programmed cell death process. These results areconsistent with previous work from other labs studying differentHh-associated tumors, “but we were very surprised to see that sometumor cells persisted after shutting down Gli2 e...

Genetically modified natural killer immune cells attack, kill leukemia cells

...ls. The researchers then genetically modified the growing NK cells so they carried on their surface an artificial receptor that made them particularly aggressive and effective killers that attacked only leukemic cells. A receptor is a protein that binds to a specific target molecule. The artificial receptor...

Placenta Is A Rich Source Of Blood Stem Cells

...seases, and in patients receiving transplants, but growing them in quantity is difficult. The cells don't multiply readily in the laboratory, so they must be harvested from bone marrow by needle aspiration, a painful procedure, or coaxed into the blood and then collected. Both methods yield only a limited nu...

Nanogen Issued Patent for Electronic Microarray With Memory

...ronic microarray cartridge. "This addition to our growing intellectual property portfolio illustrates our ability to develop differentiated advanced diagnostic products that add value to the company and to research and clinical laboratory customers," said Howard C. Birndorf, Nanogen chairman of the board an...

Scientists discover unique microbe in California's largest lake

...an water, but cannot survive there unless they are growing inor on another organism."I think it is likely that this microbe is descended from symbioticrelatives who got to the Salton Sea as hitchhikers in water containingsport fish that were introduced from the ocean many years ago," Woodexplains.She says th...

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