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Tag: "anatomical" at biology news

Bone Density Recovers After Teens Stop Injected Contraceptive

...igh as those of the comparison women at all of the anatomical sites.?/p> The current study was conducted to ...ts adversely impacts [bone mineral density] at key anatomical sites,?the study authors wrote. “However, these results in teens and those from our previous cohort ...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

..., the PET technique alone did not provide adequate anatomical detail of the tiny fetal organs. The current study... the necessary detail, served as a high-resolution anatomical template onto which we 'overlaid' the PET pharmacokinetic data using sophisticated computer techniqu...

Stanford gut check shows diversity of intestinal ecosystem

...he researchers analyzed samples from six different anatomical sites inside the large intestine as well as a stool sample. Eckburg and his team determined more than 13,000 sequences of 16S rRNA. Most of what they identified included the usual suspects in the intestinal flora, but there were surprises. Nearly tw...

A probe, not an echo

...g. The team found it possible to identify various anatomical structures within the kidney based on their distinctive attenuation characteristics, so that computerized algorithms could display in color-coded fashion one tissue in red, another in green, and so forth -- thus assisting visualization in 3D. The te...

Specialized immune-system B cells play double-barreled role

...t distinguishing characteristics such as behavior, anatomical localization and types of antibodies produced. In contrast to well-studied B-2 cells, the cellular origins of B-1 cells and their subtypes remain unknown. "The true function of B-1 cells in the body has been highly controversial over the past two de...

Using nanoparticles, in vivo gene therapy activates brain stem cells

...the paper and associate professor of pathology and anatomical sciences in the UB School of Medicine and Biomedical Sciences. Stachowiak is in charge of in vivo studies at the UB Institute for Lasers, Photonics and Biophotonics. "It's likely that these stem/progenitor cells will grow into healthy neurons," he s...

Discovery of an American salamander where it shouldn't be: Korea

...gy and Department of Integrative Biology performed anatomical comparisons and a molecular phylogenetic analysis to determine the relationship between the new salamander and other plethodontids. All these researches are coauthors of the current Nature paper, though Karsen elected not to join them in order to ac...

Researchers seek to discover what really happens when a virus enters the body

...the reach of medical research beyond detecting the anatomical presence of the disease. Employing applied engineering technologies to treatment will allow more intensive study of diseases at the cellular level. A greater understanding of the physiology of an illness will lead to more targeted treatments. ...

Researchers identify new catfish family

...emy of Natural Sciences of Philadelphia. Thorough anatomical studies of the fish document its status as a new family and show that the fish is the only member of an ancient group that may have arisen while dinosaurs roamed the Earth. The fish's skeleton was scanned by high-resolution computer tomographic equi...

3D Atlas Will Help Navigate The Spinal Cord

...ons with the human spinal cord and demonstrate the anatomical principles or generalizations of its organization, and (c) provide the 3D stereotaxic space designed to become the knowledge management environment for experimental and, eventually, clinical observations. Though not itself directed at a cure for the...

Study: Predatory dinosaurs had bird-like pulmonary system

...rcester, Mass., this fall. In birds, this special anatomical configuration increases the gas exchange potential...letal remains, and are the first to integrate both anatomical and functional studies of modern birds as models of how the ancient creatures' air sacs were structu...

Single gene is genetic switch for fly sexual behavior

...genes that trigger the development of a particular anatomical feature like wing structure have been studied exte...single gene can trigger the development of complex anatomical structures like eyes or limbs, by influencing sometimes hundreds of other genes, Dickson notes. "I ...

Skull study sheds light on dinosaur diversity

...nt branches of sauropods gravitated toward similar anatomical structures, perhaps because they were specialized for eating certain types of vegetation." ...

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

...?it is located in the same region and has the same anatomical characteristics as Broca's area in the human brain", explained Dr. Michael Petrides, Coordinator of the Cognitive Neuroscience Unit at the MNI and Professor in the Department of Neurology and Neurosurgery, McGill University. "The researchers perform...

Researchers identify molecular anchor that allows bacterial invasion of central nervous system

...dstream into the central nervous system through an anatomical obstacle called the blood-brain barrier. "Streptococcus, which can cause meningitis, has to penetrate the normally impermeable blood-brain barrier in order to enter the central nervous system and cause disease," said Doran. "How this happens is not ...

Brain activity related to processing faces is similar in people with, without autism

...ging, or fMRI. Unlike standard MRI scans that show anatomical structures in black and white, fMRI offers digitally enhanced color images of brain function, depicting localized changes in blood flow and oxygenation. When particular regions of the brain increase their neural activity in association with various...

Olfactory system detects pheromones that control reproduction

...d be able to identify functional correlates of the anatomical circuit linking olfactory neurons and LHRH-producing neurons. They studied the sexual behavior of mutant mouse strains that lacked either a functional olfactory epithelium or vomeronasal organ. They also studied the behavior of normal mice in which t...

Interactive 3-D atlas of mouse brain now available on web

...he world can now download these extremely accurate anatomical templates and use them to map other data -- such a...genes are expressed -- and for making quantitative anatomical comparisons with other, genetically engineered mouse strains," said project leader Helene Benveniste...

Cell barrier shows why bird flu not so easily spread among humans

...ls in the human respiratory tract reveals a simple anatomical difference in the cells of the system that makes it difficult for the virus to jump from human to human. The finding, reported today (March 23, 2006) in the journal Nature, is important because it demonstrates a requisite characteristic for the viru...

Brain differences could explain why males and females experience pain relief differently

...ter for Behavioral Neuroscience (CBN) reports that anatomical and functional differences in the brain may explai...les. These results provide the first potential anatomical and functional explanation for sex differences in the experience of pain and responses to the drug m...

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