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Tag: "responses" at biology news

Plants used to detect gas leaks, from outer space!

...d", says Steven. "A satellite image of the stress responses in vegetation should identify gas leaks at least as well as a visual report from a helicopter, which is the current method, and would be safer and possibly cheaper." Steven will present his research on Thursday 6th April at the Society for Experimen...

Protein found to control tumor growth in certain breast cancers

...nd the reduction of estrogen-induced proliferative responses in vitro. In stark contrast, significant tumor gro... and a reduction of estrogen-induced proliferative responses in vitro. Moreover, scientists found that the tumors diminished rapidly in these mice, becoming vir...

New method enables gene disruption in destructive fungal pathogen

...hat trigger inflammatory and other types of immune responses in humans. By understanding how fungi modulate immune responses in humans, new ways of developing therapeutics for these conditions could be identified. ...

HIV vaccine takes different tack to boosting immune response

...tion. "Conventional wisdom is that natural immune responses play an important but insufficient role in control...s therapeutic vaccine can boost the natural immune responses strong enough so you don't have to take these anti-HIV drugs all the time." Chen anticipates testin...

All placebos not created alike

... experiments are detecting immediate physiological responses to placebos. A new study takes placebo investigations out of the lab and into a clinical trial, showing a discernible placebo effect over time, according to an article in the Feb. 1 British Medical Journal. While researchers usually use placebos in...

Scientists discover new genetic subtypes of common blood cancer

...in multiple myeloma is only 32 percent and durable responses are rare. The new report emerged from a collaboration involving DePinho's Dana-Farber group, Cameron Brennan, MD, of Memorial Sloan-Kettering Cancer Center, and John Shaughnessy, MD, of the Myeloma Institute for Research and Therapy at the Universit...

A Jekyll and Hyde of cytokines: IL-25 both promotes and limits inflammatory diseases

...ignal responsible for promoting the type of immune responses that cause asthma and allergy can also limit the t...vents destructive inflammation and promotes immune responses associated with asthma and allergic responses. The findings, which appear the April issue of the J...

Liquid crystals show promise in controlling embryonic stem cells

...r differentiation, as well as report back specific responses of the cells or tissue. "This research is also significant as an example of our unique effort to integrate advanced materials engineering and embryonic stem cell research, an effort that will help accelerate the rate at which the benefits of stem-ce...

Face perception is modulated by sexual orientation

...e. Specifically, the researchers predicted similar responses to male and female faces in the visual cortex, where facial identity is processed, but differential responses in the amygdala and the reward circuitry, where a "value" is assigned to faces. The researchers post...

Oops! Researchers publish new findings on the brain's response to costly mistakes

... the event-related potential or ERP to study brain responses to various situations, assessing changes in electrical activity through sensors arranged on a mesh cap that is placed on the head. The method is similar to techniques used to study the brains of people with epilepsy or sleep problems, but the electri...

'Genetic network' guards against lethal DNA damage

...oints" so that damaged DNA can undergo repair, and responses to oxidative stress necessary for reducing the intracellular levels of highly reactive molecules that bind to and damage DNA. The yeast has about 6,000 genes, of which about 1,000 are essential to survival and 5,000 are not, Boeke said. Specifically...

How can we protect patients with weakened immune systems from influenza?

... researchers will study how such patients' vaccine responses change over time: "Some patients may not benefit f...tal of Philadelphia. One project will study immune responses in children receiving different intensities of chemotherapy for solid tumors and two types of leukem...

Lizard 'third eye' sheds light on evolution of color vision

...d Go, known as "G-other," which also signals light responses in the light-sensing cells of the scallop and other creatures without a backbone. That Go is found in spineless creatures suggests it is the evolutionarily more ancient light-triggering signal. Although gustducin and Go are different molecules, the...

Mice lacking social memory molecule take bullying in stride

...ral tegmental area), the relevant circuit mediates responses to emotionally important environmental stimuli via release of dopamine. Activity of this neurotransmitter is regulated in the circuit by brain derived neurotrophic factor (BDNF), which is known to play a key role in memory ( http://www.nimh.nih.gov/...

UCLA scientists uncover mechanism of response to targeted therapy

...ponse, while a high percentage experienced partial responses or had their disease stabilize, meaning it was no longer growing. Thomas predicted that CCI-779 would probably be most effective when given in combination with other therapies because it "in kidney cancer, it stops the tumor cells from growing, it ...

Protein finding could lead to treatment for inflammatory diseases

... them, as a therapeutic tool. Painful inflammatory responses caused by cytokine production in rheumatoid arthritis, Crohn's disease and similar maladies potentially could be cured by MC160. It is hoped, she said, that the protein's large size (almost 60 kiloDaltons) can be reduced to smaller, activity-specifi...

World shark attacks dipped in 2005, part of long-term trend

...ests. Greater safety precautions and in-your-face responses to confrontations with sharks went a long way in reducing the total number of attacks from 65 in 2004 to 58 in 2005 and fatalities from seven to four, said George Burgess, director of the International Shark Attack File housed at UF's Florida Museum ...

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

... for sex differences in the experience of pain and responses to the drug morphine in the treatment of pain. Morphine is currently the drug of choice for treating several types of post-operative pain, and it is becoming increasingly clear that morphine alleviates pain to a greater degree in males in comparis...

Chemical guidance of T cells leads to immunologic memory and long-term immunity

...ys of thinking about how to enhance certain immune responses and how to improve vaccines. Led by immunologist Ronald Germain, M.D., Ph.D., the scientists took videos through a microscope to document what happens inside the lymph nodes of a living mouse shortly after a vaccination. The videos reveal that the m...

Front-line immune cells mature in four stages, study shows

...which play a key role in triggering broader immune responses such as the body's permanent protection following ...lymph nodes and whether they play a role in immune responses or are just going through the maturation process. ...

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