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Tag: "scientists" at biology news

Wisconsin scientists grow critical nerve cells

After years of trial and error, scientists have coaxed human embryonic stem cells to become s.... 30, 2005) in the journal Nature Biotechnology by scientists from the University of Wisconsin-Madison, are important because they provide critical guideposts for...

Association of herpesvirus with lung disorder questioned

...on. All 22 were Japanese. For a control group, the scientists studied Kaposi's sarcoma tissue samples obtained f... have differed. "We hope that our results provide scientists with another perspective on the potential causes of primary pulmonary hypertension," Dr. Katano said...

Man and mouse share genome structures

...hat turn genes on and off. Their findings may help scientists understand regulatory mechanisms underlying cancer...e different because different genes are on." Many scientists believe changes in the regulatory scaffolding surrounding the genome may be as important as changes ...

Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats

...nd certain cancers. In the Jan. 28 issue of Cell, scientists led by Bruce Spiegelman, PhD, report that the harm...ator, in liver cells called PGC-1beta. Until now, scientists lacked a detailed explanation of how saturated and trans fats caused an increase in blood cholestero...

Genes In The Interferon System Important In Systemic Lupus Erythematosus

...ythematosus (SLE) have been identified bya team of scientists headed by researchers at the Department of MedicalSciences at Uppsala University. The findings are being published todayon the Web page of the highly prestigious American Journal of HumanGenetics. "These findings are probably the first genetic pieces...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...nd minerals vented from below the ocean floor, say scientists at the University of California, Santa Barbara. The UCSB scientists are making new contributions to this field of inquiry in their studies of seafloor hydrothermal flui...

UAB scientists discover the origin of a mysterious physical force

Ever since the 1970s, scientists have been trying to establish the cause of a repul...hed in Physical Review Letters in April 2004. The scientists have now discovered that this strange property is responsible for the hydration force that acts when...

Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants

...iques. This study provides a new tool to botanical scientists bymerging areas of materials science, chemistry and plant biology.The findings are the result of an interdisciplinary research teamincluding Sathyajith Ravindran of the Chemical and EnvironmentalEngineering Department; Sunran Kim, Rebecca Martin and ...

Source of molecular triggers in cutaneous T cell lymphoma identified

In a study published in the journal Blood, Yale scientists identify the molecular triggers that stimulate Cutaneous T Cell Lymphoma (CTCL) cells to clonally expand into large populations of malignant lymphocytes. CTCL is the most common adult malignancy of T lymphocytes, the white blood cells of the immune ...

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

...breakthrough overcomes problems currently faced by scientists whoare unable to grow large tissues and have limited control over theshape or size the tissue will grow to. It also allows more than onetype of cell to be printed at once, which opens up the possibility ofbeing able to create bone grafts."Using conve...

Protein discovery could unlock the secret to better TB treatment

UCL scientists have found a protein that could unlock the secret to quicker, more effective treatment of TB by waking TB bacteria in the body. Once the TB bacteria are active again, the disease becomes treatable using common drugs like antibiotics. Scientists belie...

It's not all genetic: Common epigenetic problem doubles cancer risk in mice

In experiments with mice, a team of scientists from the United States, Sweden and Japan has discovered that having a double dose of one protein is sufficient to change the normal balance of cells within the lining of the colon, thereby doubling the risk that a cancer-causing genetic mutation will...

Novel technology detects human DNA mutations

...a disease or drug sensitivity.To do so, Nanosphere scientists employ a two-step process calledClearReadTM technology. This method sandwiches a target DNA SNP segment between two oligonucleotide sequences to greatly increase detection specificity and sensitivity. One segment identifies any mutations in the DNA a...

Priming embryonic stem cells to fulfill their promise

...ver, in order to fulfill their therapeuticpromise, scientists believe that stem cells must first be coaxed todif...s of cell biology in the sense that all of asudden scientists can use inexpensive and widely available reagents andmachinery to optimize the conditions needed to ...

Growth in the sea comes down to a struggle for iron

...rge Japanese research program, Wells and a team of scientists from UMaine and other universities are studying th...t as tests of his ideas were getting underway, but scientists have embarked on a series of experiments in three major areas of the world's oceans. "The three are...

Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas

... in the March edition of Diabetes, reinforces what scientists have known from previous studies in humans: Infants with low birth weight -- typically defined as under five and one-half pounds -- have a higher risk for developing type 2 diabetes. To understand the reason, the researchers designed a series of exp...

Fox Chase Cancer Center scientists identify immune-system mutation

A team of Fox Chase Cancer Center scientists led by immunologist Dietmar J. Kappes, Ph.D., has ...for studying the immune system and are now used by scientists worldwide. Kappes' co-authors on the new Nature paper include Fox Chase postdoctoral associates Xia...

Controversial drug shown to act on brain protein to cut alcohol use

...stigatorat the Gallo Center.In their research, the scientists first carried out classic behavioralstudies showin...ich very few effective drugs exist," Janaksaid.The scientists confirmed in a cell model that Ibogaine stimulated GDNFactivity. Finally, they showed that a known i...

Termites feed through good vibrations

...which Dr Evans broadcast into small blocks and the scientists found that the termites had no preference for either large or small blocks. Broadcasting static into small blocks did not affect termite choice, showing that the termites were not interested in random noise. These results show two responses by the t...

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

...t Neu5Gc. In thecurrent Nature Medicine paper, the scientists found that the humanembryonic stem cells contaminated with Neu5Gc became, effectively, likeanimal cells, being attacked by human antibodies, and thus renderingthem useless as a potential therapeutic tool in humans."It's an important safety issue beca...

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