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Tag: "inside" at biology news

Cholera pathogen reveals how bacteria generate energy to live

...as to reach all the way from the water-like medium inside the cell, through the oily membrane interior, to t... and then determined whether these labels appeared inside or outside the envelope of the cell membrane. The results showed that the cofactors ?important parts...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...t bay scallops in the area, except those protected inside fences that the researchers had put up to keep the rays out. By 2004, cownose rays had completely devastated the scallop population, terminating North Carolina's century-old bay scallop fishery. "Increased predation by cownose rays also may inhi...

New imaging technique tracks traffic patterns of white blood cells

... blood disorder that affects hemoglobin, a protein inside red blood cells that help carry oxygen throughout ...ul S. Frenette. "In vivo imaging provides a window inside the body that allows us to see exactly which blood cells and which molecular constituents participat...

Virginia Tech's System X supercomputer provides super tool for simulation of cell division

... tools for studying the complex processes going on inside living cells. Biologist John Tyson, who studies t...ate an accurate representation of what is going on inside the cell. A simple example is the conversion between Fahrenheit and Celsius temperatures, said mathe...

On automatic pilot

...colleagues investigated which processes took place inside and outside of the cerebellum: how does it channel information and process this into a signal to the muscles? Subsequently they investigated which parts of the cerebellum are involved in regulating the activity of a single muscle. Furthermore, they e...

Huddling and a drop in metabolism allow penguins to survive the South Pole cold

...constancy (or slight decrease) of core temperature inside the dense huddles, in contrast to the expected temperature rise, is the depression of metabolic rate. Such depression could be achieved by entering sleep. In fact, during tight huddles, birds were observed with their eyes closed. It is known that the...

St. Jude announces breakthrough in eye cancer treatment

...s a customized drug to disable a specific molecule inside a growing cancer cell; local delivery is the placement of a drug at the site of disease, rather than systemic treatment. In systemic treatment, such as chemotherapy, a drug is infused into the body through a vein and then circulates, often causing to...

How fish mend a broken heart

...f adult mammals, including humans, are also housed inside an epicardium, a tissue about which little is known. "Scientists haven't paid much attention to the epicardium in adults," Poss said. "These findings in fish should encourage more exploration of what adult epicardium can do. "There is the potenti...

Signal protein shows promise for blocking tumor promoters in skin cells

...g signals that control cellular growth. Found just inside the cell membrane, they conduct signals from cell surface receptors to the proteins that promote growth. Src kinases can be activated during cell division or through mutation. If these proteins are too active, they promote rapid cell growth that can ...

Lungs try to repair damaged elastic fibers

... elastin expression and produce new elastic fibers inside the alveoli, Woods said. Adults do not have that ability and that has led physiologists to conclude that the elastin gene must shut off after we reach a certain age, ending elastin fiber production. Physiologists want to understand this process in...

Why don't all moles progress to melanoma?

...rtant question in an unexpected place ?a structure inside cells called the endoplasmic reticulum, or ER. "Our results support the direct role of the endoplasmic reticulum as an important gatekeeper of tumor control," says Soengas, who is an assistant professor of dermatology in the U-M Medical School. "U...

Stem cells engage in dialogue with the cells that regulate their futures

...poking out of a cell that can activate a mechanism inside the cell. When this trigger is pulled by proteins,...and Serrate, from another cell, proteins are freed inside the cell to travel to the cell nucleus and turn on various genes. According to Ruohula-Baker, the...

Record ozone loss during 2006 over South Pole

...uth Pole (polar vortex) weaken, and ozone-poor air inside the vortex is mixed with ozone-rich air outside it. Envisat, the largest Earth observation satellite ever built, can localise ozone depletion and track its changes, enabling the rapid estimation of UV radiation as well as providing forecasting. Th...

Preliminary study finds holographic imaging system promising for cancer treatment planning

...ctuality Systems, Inc., creates holographic images inside a 24-inch dome. The full-color, full-motion system...ics, a CT scan is projected onto a screen spinning inside a 24-inch transparent dome. The screen, spinning at over 900 rotations per minute, forms a detailed...

British cattle give TB to badgers, finds UC Davis expert

... reduced TB infection in cattle by just 19 percent inside the culling areas, and actually increased cattle TB on neighboring farms. "In the past, policymakers assumed that infected badgers were the source of most cattle TB cases, and could be 'cleaned out' by culling," Woodroffe said. "But our results show...

NASA satellite data helps assess the health of Florida's coral reef

...ing -- corals turn white when tiny algae that live inside them die. Bleaching is a symptom of coral stress, which can be caused by high water temperatures, other environmental stresses, or disease. The project was part of the Florida Reef Resiliency Program, funded by the state of Florida and The Nature Con...

Bones at the nanoscale

...bres, and on the other, the crystallites embedded inside the fibre, which are not bigger than 2 to 4 nanometers. The critical sample preparation was developed by Max Planck researchers, which made it possible to isolate tissue in bone of about 100-200 microns of size. These results provide new insigh...

NHGRI aims to make DNA sequencing faster, more cost effective

...illions of strands of DNA immobilized on a surface inside a reagent flow cell. The research plan aims to advance this strategy to achieve high accuracy, re-sequencing of highly variable genomes and assembly of never-before sequenced genomes. Dmitri V. Vezenov, Ph.D., Lehigh University, Bethlehem, Penn. ...

'Protecting virus' offers instant flu protection and converts flu infections into their own vaccines

...ction process ?the effect works on the virus genes inside the cell. It thus promises to be a highly effective tool when combating the spread of any new strain of virus, as well existing strains. One could give it as a preventive measure without the need to tailor it to a particular flu strain or mutation....

New research identifies gene important for nicotine's effects on the brain

...s that future research focus on signaling pathways inside nerve cells and understanding which pathways are really important for nicotine addiction as opposed to other types of abuse. Picciotto's research used both genetically engineered mice with altered nicotine receptors and viruses that could block CRE...

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