Tag: "inside" at biology news

Genetic mutations linked to the practice of burning coal in homes in China

...nally start the fires and cook, spending more time inside homes that lack ventilation. As a result, they are more likely to be exposed to potentially dangerous emissions." The lung cancer mortality rate in some communities in Xuan Wei County is among the highest in China, and more than 20 times that countr...

Student science contest participation influences study, career choices, alumni say

...t to degrade wastes. Working along side scientists inside a company's lab "gave me perspective on what careers were out there in the life sciences". Merson went on to do medical research and for the past four years has worked for SHI Consulting, a life sciences consulting firm. Instead of doing bas...

Cigarette smoke causes breaks in DNA and defects to a cell's chromosomes, Pitt study finds

...ompressed into identical copies of each chromosome inside the cell nucleus. The chromosomes are then segregated during cell division, so that each daughter nucleus receives a complete copy of the genetic material. The stage when chromosomes are segregated and become separated is called anaphase. Normally, e...

Molecular motor implicated in tissue remodeling

...ource. While most molecules that act as motors are inside cells and get their energy from a ubiquitous high-energy molecule called ATP, the team found that MMP-1 gets its energy by breaking the molecular bonds in the collagen filament it is attached to. "In fact," Goldberg says, "with our model, a whole ne...

Rare childhood genetic syndrome identified

... Calcium channels control how much calcium can get inside a cell. Calcium is one of the body's most important signaling molecules, and normally, cellular calcium levels are tightly regulated. Dr. Mark Keating, senior author of the study and a Howard Hughes Medical Institute investigator at Children's Hospi...

Hidden diversity: DNA 'barcoding' reveals a common butterfly is actually 10 different species

... example of a genetically distinct species, hiding inside a morphology similar to the surviving species?" Janzen and his colleagues report their findings in the Sept. 29 issue of the Proceedings of the National Academy of Sciences. Their research began during 25-year-long inventory of the wildlife in the A...

Wisconsin scientists develop quick botox test

...are smart," Chapman notes. "They know where to go" inside cells to do the most damage. The newest work, says Chapman, helps give scientists an inside-the-cell view of the toxin at work. The toxin employs a four-step process - from cell entry to blocking the release of chemical messengers from nerve endings...

Rice finds 'on-off switch' for buckyball toxicity

...n culture, they don't tell scientists what happens inside the body, where cellular repair mechanisms, whole-organ and whole-body processes come into play. "Cytotoxicity should not be confused with a full-fledged toxicological risk assessment," said Kevin Ausman, CBEN executive director and a co-author of th...

Master of antimalarial resistance

... infected with malaria, the parasite lodges itself inside the red blood cells of its new host, drawing on th...sustenance. As the parasite digests the hemoglobin inside a membrane pocket called the digestive vacuole, it creates a toxic byproduct called free heme. Norma...

Brown research reveals key insight into memory-making

...ecycling endosomes, or membrane-bound compartments inside neurons, carry a reserve pool of these receptors. To test his theory, Ehlers called on Julie Kauer at Brown. Kauer, associate professor medical science in the Department of Molecular Pharmacology, Physiology and Biotechnology, proved that Ehlers' the...

Termites could hold the key to self-sufficient buildings

...le, digestive functions to a fungus that they farm inside the mound. They supply the fungus with chewed wood fibre which the fungus breaks down into nutritious food. The structure of the mound ensures a constant and optimum environment for the fungus to thrive. The human equivalent of these 'smart' mounds ...

Experimental drug shown to block mutant protein causing blood disease

...ases are molecules that act as biological switches inside cells, regulating processes including cell division and growth. Abnormal kinases have been discovered to be major culprits in many forms of cancer. Because inhibitor drugs strike the abnormal kinases in cancer cells without harming normal tissue, the...

Key cell-death step found

...ains it, while a different type of membrane on the inside facilitates the mitochondria's functions. Scientists wondered how two mitochondria could join without mixing up the distinct membranes. Nunnari's team devised ways to get stop-action views of fusion and follow the process in isolated mitochondria. Th...

DuPont introduces in-home personal protection from dangers of hurricanes

...s, that features DuPont TM Kevlar sheathing built inside reinforced wall panels. When properly installed, ... StormRoom TM with Kevlar looks like a small room inside a house or garage. Both the inside and outside of the storm shelter can be finished to match the wa...

Scientists explore genome of methane-breathing microbe

...bout some methane-fixing bacteria those that live inside of animals such as clams and mussels in deep-sea m...we know little about how they work since they live inside of animals and cannot be grown in pure cultures on their own,"says Eisen. "Since the symbionts are c...

Students build submarine to track Octopuses

...arned. Students will repackage all the electronics inside the sub to protect it from salt air when Shadow inevitably has to be adjusted on-site. Repackaging the computer parts will be the latest in a long list of modifications and redesigns that began with Shadow I in 1998. Shadow has become an annual seni...

22nd amino acid synthesized and added to genetic code of e. coli bacteria

... the 22nd amino acid is incorporated into proteins inside living cells. The genetic instructions to put pyrr...asy test for some basic biological functions. Once inside the microbe, the enzyme was able to change the genetic coding in the organism so that it now include...

Peering inside the body, with a new spinliterally

... to three revolutions a second, and tilted just so inside a magnetic field being pelted with radio waves. Th... for short, has provided researchers a new glimpse inside living tissue and cells that other biomedical imaging methods cannot render. The difference between ...

Genetically modified bacterium as remedy for intestinal diseases

...ced the DNA with the code for a potential medicine inside the DNA of the bacterium. The genetically modified bacterium could then produce the therapeutic protein itself. In 2003, the VIB researchers succeeded in having the Lactococcus manufacture the anti-inflammatory agent IL-10. The IL-10 bacterium shows ...

First glimpse of DNA binding to viral enzyme

...raction in detail. The scientists now believe that inside the virus particle the protease uses the DNA as a guide wire, sliding along the genetic material to remove the internal "scaffolding" proteins, all located near the DNA. The team used a technique called synchrotron footprinting, which was pionee...

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