Tag: "responsive" at biology news

Running not swimming or biking is best kind of loading exercise for childrens bone growth

...osed to swimming or biking. Growing bones are most responsive to the strengthening effects of running/jumping, which have the additional benefit that these types of exercise don't affect longitudinal growth, Turner says. Activities like "serious weight-lifting, however, aren't recommended for children because ...

Muscling in on a deadly cancer

...(Another form, embryonal rhabdomyosarcoma, is more responsive to treatment.) Capecchi says the cancer causes tumors in various muscles throughout the body, primarily in the legs, arms and shoulders, but also in the back, neck, trunk and even the tongue. Scientists already knew th...

New source for heart bypass replacement blood vessels: Fibrin-based TEVs

...urce of strong, yet elastic -- and physiologically responsive replacement blood vessels has been the subject of laboratory searches and experimentation for decades. The study, "Fibrin-based functional and implantable small diameter blood vessels," was written by Daniel D. Swartz and James A. Russell from the ...

Story tips from the Department of Energy's Oak Ridge National Laboratory

...osphorus from stream water was highly seasonal and responsive to forest processes, with greatest removal occurring in the autumn and early spring. "This research demonstrates the strong effects of streamside vegetation and points to the important role of streams in preventing high nutrient exports and the eutro...

Differences in gene usage dramatically change bacteria's 'lifestyles'

...urned on and off in ways that are more intricately responsive to the environment and other factors. Human DNA, Groisman speculates, may be heavily packed with the factors that allow a more complex, richer use of genes also found in other organisms....

Weizmann Insitute scientists show how proteins beat the evolutionary stakes

...bust while the promiscuous functions are extremely responsive to mutation." The scientists believe that promiscuity may be an intermediate phase for some evolving proteins. In the face of further evolutionary pressure, the protein line could split, diverging into two distinct genes. This multi-tasking may a...

Research turning up the heat on fowl bacteria

...f nutrients." All this exploitation requires being responsive to the environment. "Organisms can sense where they are in people and respond by changing their gene expression so they are making the right proteins for the environment they happen to be in," says Dr. Burns. The researchers are exploring this explo...

Researchers discover way to make cells in the eye sensitive to light

...espond to light. Although making cells in the eye responsive to light is not a cure for blindness, the team are...s which would allow the information from the light responsive cells to be used by the brain to process images....

Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats

...ed physically and turned up the function of sterol responsive element binding proteins. These important parts of the mechanism activate many key genes of lipid biosynthesis involving the pathways of cholesterol and triglycerides; these genes directed the liver to manufacture more cholesterol, which it does in t...

Children's taste sensitivity and food choices influenced by taste gene

...f the TAS2R38 gene, which encodes a taste receptor responsive to bitter taste. Using cheek swabs to obtain genetic samples, researchers classified 143 children and their mothers into three groups based on their TAS2R38 genotype: Type AA had two bitter-insensitive sites (alleles), type PP had two bitter-sensit...

Research focusing on why estrogenic hormones produce differing results

... tested. The AP-1 sites by themselves were weak -- responsive somewhat to estrogen but not to the other hormones...t switch, because you have many different estrogen responsive genes in one cell," Nardulli said. "So, do you want to turn on all the genes to the same extent, or...

A startling diary reveals the onset of autism

...six months, both twins smiled, engaged in socially responsive vocalization, and showed a preference for family members over other people. By the age of one, however, the male twin showed less eye contact, less verbal communication, and less affection toward others than did his sister. His sleep patterns were al...

Alcohol's effects on gene expression in the central nervous system

...nking behavior. "Thus far, genes that appear to be responsive to alcohol include genes involved in the intracellular signaling process (which can alter how the neuron functions), neuropeptide signaling (which modulates nerve cell activity), and myelin structure (which is needed for communication between nerve c...

Brain controls robot arm in monkey, University of Pittsburgh researcher reports at AAAS

...elop more sophisticated brain devices with smooth, responsive and highly precise movement. They are now working to develop a prosthesis with realistic hand and finger movements. Because of the complexity of a human hand and the movements it needs to make, the researchers expect it to be a major challenge. Other...

Individual differences in taste perception directly related to genetic variation in taste receptors

... cell culture experiment. These data implicate the responsive PAV haplotype as a major determinant of sensitivity to the bitter taste of PROP and PTC in humans. "These data answer a long-standing question about why humans differ in their ability to taste some bitter compounds," explains study co-author Daniel...

New slant on vision research: Neurons sensitive to viewing angle

...ing angle of the image get "tired" and become less responsive when a very similar image is presented again, He said. The brain interprets this lack of response as the object not being turned in the direction the neurons are attuned to. This suggests that there are separate populations of neurons, each respondin...

Genetic testing could bolster radiotherapy's effectiveness against cancer

...pa B has been inhibited, the cancer cells are less responsive to radiotherapy. Apparently, Li said, the presence of the protein keeps tumor cells alive despite receiving a punishing amount of radiation that ordinarily would kill them. "Previous research has also implicated NF-kappa B in this type of radioresist...

Fat may affect electrical impulses in brain, heart

...ciences that the proteins in specific electrically responsive cell pores--voltage-sensing potassium channels--can bind to molecules of palmitate. Palmitate is a saturated fatty acid previously linked to "hardening" of the arteries and obesity and is a common fat in unhealthy diets. "In effect, the attachment o...

Watching microglia at work

...nocompetent cells in the brain. They are the first responsive element to any kind of brain damage or injury. Microglia are critically involved, for example, in neurodegenerative diseases and stroke. So far, microglial cells have been studied in vitro, i.e. outside the living organism. As a result, key aspects o...

Fox Chase Cancer Center researchers identify subset of ovarian cancer patients responsive to Iressa

... ovarian tumors to identify the women who would be responsive to gefitinib or other targeted therapies." The Fox...lect a subset of patients whose tumors may be more responsive to this EGF receptor-targeted therapy. "This finding could have a dramatic impact on clinical care,"...

1 2 3 4 5

(Date:5/23/2013)... mechanism by which estrogen suppresses lipid synthesis in the ... approach toward treating certain liver diseases. , With ... are changing long-held views in the field. Study results ... Science Signaling . , "The dogma in the ... only receptors located in the nucleus respond to steroid ...
(Date:5/23/2013)... 23, 2013) A new report from the Institute ... pupils engage in at least 60 minutes of vigorous ... No more than half of American youth meet current ... or moderate intensity physical activity daily, according to the ... are in school for nearly half of their waking ...
(Date:5/23/2013)... the interplay of brain chemicals which help us pay ... BBSRC. , By changing the way neurons respond ... these changes can affect the strength of a neuronal ... response. , Lead author Alex Thiele, Professor ... you can make yourself better heard by speaking louder ...
Breaking Biology News(10 mins):UCI study reveals new mechanism for estrogen suppression of liver lipid synthesis 2Schools should provide students with daily physical activity, IOM recommends 2
Other Tags
incubatorpowdersthunderattendeesforwardeuropeandispersaltransoceanicmosquitoeuropeeastprescribingvertebroplastyridecautionedbikers