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Tag: "biology" at biology news

Regulating the nuclear architecture of the cell

...gy) and an adjunct professor of molecular and cell biology at the University of California at Berkeley. The epigenetics of heterochromatin Controlling functions of the cell and organism through nuclear architecture and spatial rearrangements is known as epigenetics from the Greek for "on, over, o...

A new target for painkillers

...ogy, and Michael Ellison, a postdoctoral fellow in biology ?and with Michelle Vincler, Shannon Wittenauer and Renee Parker at the Wake Forest University School of Medicine in Winston-Salem, N.C. The research was funded by the National Institutes of Health. A Pain in the Nerves The study dealt with ...

Unraveling where chimp and human brains diverge

...lates to the other. So instead we used a systems biology approach to study each gene within its context." The scientists identified networks of genes that correspond to specific brain regions. When they compared these networks between humans and chimps, they found that the gene networks differed the m...

Nanoparticle assembly enters the fast lane

... Center for Functional Nanomaterials (CFN) and the biology department. The researchers found a way to control the assembly of gold nanoparticles using rigid, double-stranded DNA. Their technique takes advantage of this molecule's natural tendency to pair up components called bases, known by the code letters ...

Columbia University licenses next-generation DNA sequencing technology

...s seminal sequencing chemistry and IBS's molecular biology and engineering expertise. We are poised to offer a simple, cost effective platform that will enable many researchers and clinicians to use this next-generation DNA sequencing technology in their own laboratories." Dr. Ju is a prolific inventor of ...

Mayo discovers protein as potential tactic to prevent tumors

... Tindall said. "With this new understanding of the biology driven by critical dual functions of CDK2, the cancer community can focus on ways to regulate a mechanism that the cell contains to prevent damaged genetic messages from being inherited and spread in proliferating tumor cells." ...

Mutant mouse provides insights into breast cancer

... were discovered by Cornell professor of molecular biology Bik Tye, while the pathology of the mouse tumors was performed by Ana Alcaraz, a veterinarian in Cornell's Section of Anatomic Pathology in the Department of Biomedical Sciences. ...

Queen bee promiscuity boosts hive health

...id lead author Thomas Seeley, Cornell professor of biology and chair of the Department of Neurobiology and Behavior. Seeley and David Tarpy of North Carolina State University tested the leading hypothesis that queens' promiscuity improves colony disease resistance by boosting the genetic diversity of their...

Researchers make nanosheets that mimic protein formation

...nt connection between two basic building blocks in biology and nanotechnology, that is, proteins and nanoparticles, and this is very exciting for assembling materials from the bottom up for a whole slew of applications ranging from drug delivery to energy," said Sharon Glotzer, professor of chemical engineer...

High-throughput oncogene mutation detection in human cancers by mass spectrometry-based genotyping

...in many tumor types. In a lot of cases, the entire biology of the tumor is conditioned around such mutations, so if you eliminate the oncogene, the tumor shrinks," Dr. Garraway said. Examples include the c-kit tyrosine kinase that drives development of gastrointestinal stromal tumors (GISTs), and certain EGF...

Nanotech tools yield DNA transcription breakthrough

...vestigator and professor of chemistry and chemical biology at Rutgers, The State University of New Jersey. "These methods enabled us to analyze and manipulate individual molecules of the machine, one-by-one, as they carried out reactions." The discoveries significantly advance our understanding of the str...

Pressured by predators, lizards see rapid shift in natural selection

...is. "Because of its epochal scope, evolutionary biology is often caricatured as incompatible with controll...ys Losos, professor of organismic and evolutionary biology in Harvard's Faculty of Arts and Sciences and curator in herpetology at the Harvard Museum of Compar...

Protein folding: Building a strong foundation

...hede, associate professor of biochemistry and cell biology and of chemistry. She said the findings could help... associate professor of biochemistry and molecular biology at Baylor College of Medicine. Ma's group, which mainly focuses on multi-scale protein structure mod...

Two central mysteries in genome inheritance solved at UCSD

...r to all high-school students from movies shown in biology classes, has long fascinated biologists. However, the molecular nature of a key component of cell division, the "chromosome-spindle" connection, which is critical for the inheritance of genetic information as cells divide, has remained elusive. R...

Fighting like a girl or boy determined by gene in fruit flies

...an unlikely new animal model for understanding the biology of aggression and how the nervous system gives ris...e underlying neural circuitry, said Bruce Baker, a biology professor at Stanford who first linked the fruitless gene to male-specific courtship behavior. "That...

World's smallest cancer detection device

...John Condeelis, co-chair of anatomy and structural biology at Einstein and the principal investigator of the newly funded program, and his Einstein colleagues will team up with researchers at the College of Nanoscale Science and Engineering (CNSE) of the University at Albany to develop a next-generation micr...

MIT designs portable 'lab on a chip'

...actions going on here and there, can revolutionize biology and chemistry," says Martin Bazant, associate prof... chip can also be used in traditional chemistry or biology labs to speed up processes such as DNA testing or screening for the presence of certain antigens. O...

Dragonfly's metabolic disease provides clues about human obesity

...tabolic dysfunction. James Marden, professor of biology and an insect physiologist at Penn State, and Ruud...hilder, who in August 2006 earned his doctorate in biology at Penn State and is now a postdoctoral fellow at the University of Nebraska, are the first to show ...

Cardiologist's 'living chip' changes science of disease monitoring

...ility to detect changes. The company's molecular biology team is being led by Bradford Berk, M.D, Ph.D., an internationally known scientist and CEO of the University of Rochester Medical Center. "Cell-based analysis of physiologic functions is a novel approach to monitoring human disease and response to th...

History-hunting geneticists can still follow familiar trail

...fore," said Marc Allard, an associate professor of biology at George Washington University who was not involved in the study. "Population geneticists have used mitochondria for all kinds of work for 20 years, and to think that mtDNA didn't correlate with population size was clearly going against the dogma. T...

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