Tag: "controlled" at biology news

Promoting hair growth

...esearch led us to suspect that expression of genes controlled by -catenin/Wnt signaling are involved in coaxing a dormant stem cell to become active and produce a hair follicle. This study not only provides the best evidence to date to demonstrate this, but it also identifies a group of key genes involved in t...

Maternal alcohol use increases the risk of newborn infections

...ed abstaining from alcohol or cigarettes. Once we controlled for low maternal income, smoking, and for the baby being smaller than it should be, excessive alcohol use, especially during the second trimester, increased the risk of newborn infection by more than three times relative to babies whose mothers repor...

Why being a teenage mum could be good for you!

... allowed to mate were discarded through a natural, controlled process of cell death, called apoptosis. "But we also observed that apoptosis began to occur in the cells of eggs that wouldn't yet have been used, eggs-in-waiting if you like." Dr Moore believes that there are complicated evolutionary arguments behi...

Recurrent miscarriages: Could prednisolone reduce the occurrence of this distressing condition?

...f Human Reproduction and Embryology: "A randomised controlled trial of prednisolone for the prevention of miscar... questions at present, and we hope that randomised controlled trials will shed more light on the mechanisms involved and whether the use of prednisolone may, in f...

Macromolecules on surface control mobility in phospholipid bilayers

...ever, cellular proteins have to interact in a very controlled fashion with the membrane. Spatially resolved measurements performed by researchers at the University of Illinois at Urbana-Champaign now show that adsorption of macromolecules of different size can modify the mobility of underlying lipids. "Understa...

ASU researcher fashions DNA to further advances in nanotechnology

...the distance between interacting proteins could be controlled with nanometer accuracy," said Yan. Also, by attaching different proteins onto the DNA scaffold, Yan could directly visualize the binding of a drug to its target molecule or recreate metabolic pathways on a single array to mimic the way different or...

DNA constraints control structure of attached macromolecules

...alance between competing RNA and DNA structures is controlled by the concentration of magnesium ions, Silverman said. In work not yet published, the researchers have also shown that the effects of the DNA constraint on the RNA structure can be modulated by external stimuli such as DNA oligonucleotide strands, p...

Programming organic transistors with light; the unusual origin of peacock brown; rotating nanowires

...d, platinum, nickel, and carbon wires at precisely controlled rates up to 1800 revolutions per minute. They predict that higher rotation rates are possible, but could not be adequately measured with their experimental equipment. According to the researchers, the technology will help manipulate micrometer scale ...

Female butterflies go for sparkle -- not size -- when choosing to mate

...ege of Arts and Sciences. In a series of carefully controlled tests on both the dorsal and ventral sides of wings, Robertson induced a dozen subtle variations in the eyespot size and pattern of males and then studied how they influenced female's mating decisions. "It's very easy to change the size, color compos...

A 'dimmer switch' for genes

... the study of how it works. One way proteins are controlled occurs after a cell creates a protein. Graves illustrates this process by comparing protein structure with beads on a string. "After the protein is made, it can acquire what we call post-translational modifications, which are like decorations on a b...

UT Southwestern researchers discover master switch in cell death

...eath of cells is a complex avalanche of reactions, controlled by a few molecules that sit atop a biochemical "pyramid." The newly discovered enzyme, which the researchers have named Mule, destroys a key molecule at the top of the pyramid, thus leading to the cascading disintegration of the cell. Their findings ...

Prescription pain patch abuse blamed for increase in deaths

...ddicts are misusing a clear patch that transfers a controlled dose of fentanyl through the skin into the bloodstream over the course of a few days, UF experts say. The adhesive patch is typically prescribed to treat postoperative pain or chronic pain conditions, but in some cases is being misused, often with de...

UCSD researchers boost white blood cells' ability to kill bacteria

...ls under regulation of HIF-1 represents an elegant controlled response system," explained Johnson. "The white blood cells are in a resting state as they circulate in the oxygen-rich bloodstream, but can then be activated in response to the declining oxygen gradient encountered upon migration to sites of infect...

JCI table of contents July 1, 2005

...ors find that skeletal muscle cells, cultured in a controlled environment for up to 5 weeks, isolated from the endocrine and nutritional influences of their donor, retained their donor's metabolic characteristics. This suggests that defects in switching between fat oxidation and carbohydrate oxidation, possibly...

Forsyth scientists find three bacteria associated with oral cancer

...The scientists obtained similar findings when they controlled for gender, age, and smoking history. According to Mager, "Those results led us to hypothesize that the three species could serve as diagnostic indicators for OSCC. And, in fact, we found that elevated salivary counts of the three bacteria correctl...

Cut global warming by becoming vegetarian

Global warming could be controlled if we all became vegetarians and stopped eating meat. That's the view of British physicist Alan Calverd, who thinks that giving up pork chops, lamb cutlets and chicken burgers would do more for the environment than burning less oil and gas. Writing ...

Scientists uncover new clues about brain function in human behavior

...nstitutes of Health, have discovered a genetically controlled brain mechanism responsible for social behavior in humans--one of the most important but least understood aspects of human nature. The findings are reported in Nature Neuroscience, published online on July 10, 2005. The study compared the brains of h...

Insight into cell metabolism will help interpret PETs, MRIs

...shwasrao team to measure NADH levels in cells with controlled levels of oxygen saturation without damaging the cells. And unlike other methods, such as PET and blood oxygen level dependent functional magnetic resonance imaging (BOLD-fMRI), MPLSM can simultaneously show how the orientation of NADH molecules chan...

Good connections are everything

...etworks have unusual dynamic properties, which are controlled by a few, highly connected nodes. As a result, ord...roperty that their activity patterns are primarily controlled by the tiny fraction of highly connected nodes....

Chemical 'band-aid' prevents heart failure in mice with muscular dystrophy

... a rubber band," Yasuda says. "You can do specific controlled stretches and record the force generated by the cell. We found that myocytes from normal mice easily handled a 20 percent stretch in length, while myocytes from dystrophin-deficient or mdx mice had about 70 percent more passive tension in response to...

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(Date:10/15/2014)... Lithuania , Oct. 15, 2014   ... technologies, today announced the availability of the ... VeriLook Surveillance 3.0 provides real-time biometric face identification ... high-resolution digital surveillance cameras. The new version not ... and differentiates people from objects while they are ...
(Date:10/14/2014)... Research shows SIRT6—a protein known to inhibit the ... of skin cancers by turning on an enzyme that ... , Previously considered protective, SIRT6 is part of a ... genomic stability and prevent some of the genetic flaws ... can lead to cancer. This study, in the journal,s ...
(Date:10/14/2014)... N.Y. – Scientists have sequenced the house fly genome ... one might expect from an insect that thrives in ... published Oct. 14 in the journal Genome Biology ... biology and of how flies quickly adapt to resist ... Adult house flies (Musca domestica) carry and transmit more ...
Breaking Biology News(10 mins):VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 2VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 3Two-faced gene: SIRT6 prevents some cancers but promotes sun-induced skin cancer 2House fly genome reveals expanded immune system 2
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