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Tag: "anatomy" at biology news

How ancient whales lost their legs, got sleek and conquered the oceans

...tists led by Hans Thewissen, Ph.D., a professor of anatomy at Northeastern Ohio Universities College of Medic...e professor with the UF departments of zoology and anatomy and cell biology and a member of the UF Genetics Institute. "Their transition to an aquatic lifestyl...

UC Davis researchers move biotechnology closer to replacing electronic pacemakers

...s an associate professor of cell biology and human anatomy at the UC Davis School of Medicine. More than 250,...s make for far more realistic models because their anatomy and physiology, including average heart rates of about 70 to 80 beats per minute, are similar to hum...

Cigarette smoke blocks cell repair mechanism, University of Florida study shows

...id Satya Narayan, Ph.D., an associate professor of anatomy and cell biology at UF's College of Medicine. "This is basically the important finding in our case: We are now describing how cigarette smoke condensate, which is a surrogate for cigarette smoke, can cause DNA damage and can block the DNA repair of a...

First 'encyclopedia' of nuclear receptors reveals organisms' focus on sex, food

...ay in two studies in the journal Cell , chart the anatomy and timing of nuclear receptor expression throughout the body in hopes that researchers can uncover global receptor functions to improve prediction, diagnosis and treatment of diseases, from hypertension to diabetes. "This 'systems biology' approac...

UF scientists discover evolutionary origin of fins, limbs

...e professor with the UF departments of zoology and anatomy and cell biology and a member of the UF Genetics Institute. "We've discovered that the genetic circuitry for building limbs first appeared in an entirely different place - the midline of the animal." The appearance of paired fins on the sides of ea...

Drug triggers body's mechanism to reverse aging effect on memory process

... a significant discovery," said Gall, professor of anatomy and neurobiology. "Our results indicate the exciting possibility that ampakines could be used to treat learning and memory loss associated with normal aging." The researchers treated two groups of middle-aged rats twice a day for four days with eit...

Wisconsin scientists grow two new stem cell lines in animal cell-free culture

...hor of the new study and a UW-Madison professor of anatomy who seven years ago was the first to successfully grow human embryonic stem cells in the lab. "This is the first time it has been possible for us to derive new cell lines in completely defined conditions in medium that completely lacks animal product...

Engineered heart tissue offers insights into irregular heartbeats, defibrillator failure

...rld," Bursac said. "Yet, in humans and animals the anatomy is so complex that mechanisms of such arrhythmias are difficult to dissect systematically." In their study, Bursac and his colleagues created a simpler version of cardiac tissue using cells from the heart ventricles of neonatal rats. They transferr...

UF scientists trace origin of shark's electric sense

...ntal biologist with the departments of zoology and anatomy and cell biology, and the UF Genetics Institute. "...e electrical fields. "Our fishy ancestors had the anatomy for it," said James Albert, aformer UF biologist who is now at the University of Louisiana. "You can...

FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex

...rs and crocodiles. He is an assistant professor of anatomy and vertebrate paleobiology at FSU; curator of the Florida State University Museum; and a research associate at both The American Museum of Natural History in New York City and The Field Museum in Chicago. Erickson also is the animal expert on the Na...

Scientists reveal how deadly toxin hijacks cells

... and Memory and the department of neurobiology and anatomy at the University of Texas-Houston Medical School. ...

'Uniquely human' component of language found in gregarious birds

... utterances," said Daniel Margoliash, professor of anatomy and organismal biology at the University of Chicago and co-author of the study. "These rules govern how to properly express yourself ?how to structure your phrases and sentences. Language experts have used properties of these rules, whose complexity...

UF scientists reveal ancient origin of vertebrate skeleton

...e professor with the UF departments of zoology and anatomy and cell biology. "Knowing that lampreys also use collagen to build their skeletons makes sense. Lampreys and jawed vertebrates inherited the same genetic program for skeletal development from our common ancestor." Lampreys live today in the Great L...

UF scientists reveal ancient origin of vertebrate skeleton

...e professor with the UF departments of zoology and anatomy and cell biology. "Knowing that lampreys also use collagen to build their skeletons makes sense. Lampreys and jawed vertebrates inherited the same genetic program for skeletal development from our common ancestor." Lampreys live today in the Great L...

A resetting signal keeps circadian rhythm on track in Drosophila fruit flies

...Institute investigator. "However, circadian brain anatomy in mammals is much more complicated and the tools much too primitive to allow a similar network approach at this time. Flies are state-of-the art. Fortunately, their circadian clocks and even neural mechanisms are quite conserved with mammals." "W...

Engineered Stem Cells Show Promise For Sneaking Drugs Into The Brain

...icles in the brain," says Svendsen, a professor of anatomy whose laboratory is at the UW-Madison Waisman Center. The new Wisconsin study, whose lead author is Soshana Behrstock, depended on formative brain cells that were coaxed from blank-slate stem cells. The progenitor neural cells were genetically modif...

Missing fossil link 'Dallasaurus' found

...nstakingly pieced together an understanding of the anatomy and natural history of Dallasaurus from the bones Turner discovered and from some matching skeletal remains at the Texas Memorial Museum at the University of Texas in Austin. Dallasaurus represents a missing link in the evolution of a group of crea...

Wright bros. upstaged! Dinos invented biplanes

...und the fossil. Chatterjee and Templin studied its anatomy and found that like any dinosaurs, Microraptor held their hindlimbs in erect, vertical plane, permitting forward and backward motion. "The problem we faced is that the legs of Microraptor, like on any dinosaur, could not be splayed sideways," as th...

The Antarctic Ocean floor

...aphed so that their colour when alive and external anatomy can be clearly appreciated. Finally, they are inse... To this end, both the external and the internal anatomy of the animal are thoroughly analysed, using hand-lens and microscope. It should be pointed out that...

New research puts a fresh spin on current thinking of speech evolution in humans

..." The researchers hope that future studies of the anatomy and physiology of this region will yield major new insights as to why Broca's area became involved with speech in the human brain. ...

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