Daily non-political popular news in brief.
Blind humans lacking rods and cones retain normal responses to non-visual effects of light
12-13-2007 · EurekAlert!In addition to allowing us to see, the mammalian eye also detects light for a number of "nonvisual" phenomena. A prime example of this is the timing of the sleep/wake cycle, which is synchronized by the effects of light on the circadian pacemaker in the hypothalamus.
Read more »
Keywords: blind, humans, lacking, rods, cones, retain, normal, responses, non-visual, effects, light, human, rod, cone, response, non, visual, effect
« Previous | Next »
Similar news on "Blind humans lacking rods and cones retain normal responses to non-visual effects of light":
- Blind humans lacking rods and cones retain normal responses to nonvisual effects of light
12-13-2007 · EurekAlert!
In addition to allowing us to see, the mammalian eye also detects light for a number of "nonvisual" phenomena. A prime example of this is the timing of the sleep/wake cycle, which is synchronized by the effects of light on the circadian pacemaker in the hypothalamus.
Similar news · Read more »
- Auditory neurons in humans far more sensitive to fine sound frequencies than most mammals
01-10-2008 · EurekAlert!
Measuring the response of single cells in humans, UCLA researchers have discovered that auditory neurons in our brains can discern the subtlest of sound frequencies, far superior to what almost all non-human animals can discern.
Similar news · Read more »
- Researchers propose reason for severe side-effects of Northwick Park clinical trial
01-25-2007 · EurekAlert!
A possible reason why the Northwick Park clinical trial of the drug TGN1412 in the UK caused multiple organ failure in human volunteers is revealed in research presented today at a conference near Paris. The research shows that stimulating the molecule CD28 on cells that mediate the immune response, known as T cells, can have an adverse effect if these immune cells have been activated and altered by infection or illness in the past.
Similar news · Read more »
- Quantitative PET imaging finds early determination of effectiveness of cancer treatment
10-23-2007 · EurekAlert!
With positron emission tomography imaging, seeing is believing: evaluating a patient's response to chemotherapy for non-Hodgkin lymphoma typically involves visual interpretation of scans of cancer tumors. Researchers have found that measuring a quantitative index -- one that reflects the reduction of metabolic activity after chemotherapy first begins -- adds accurate information about patients' responses to first-line chemotherapy, according to a study in the October issue of the Journal of Nuclear Medicine.
Similar news · Read more »
- Non-steroidal anti-inflammatory drug increases liver damage in mice carrying mutant human gene
11-15-2006 · EurekAlert!
Research performed at Washington University School of Medicine in St. Louis sheds light on the mechanisms that contribute to liver disease in alpha-1-AT deficiency patients. People with alpha-1-deficiency have a genetic mutation that can lead to emphysema at an early age and to liver damage. Using an experimental mouse model of the disorder, the researchers investigated the effects of a non-steroidal anti-inflammatory drug on liver injury.
Similar news · Read more »
- Does a peptide affect the heart's response to social isolation?
04-29-2007 · EurekAlert!
A team of researchers investigating the effects of oxytocin, a peptide produced by the brain that regulates social behavior, has found that it can prevent detrimental cardiac responses in adult female animals exposed to social isolation. The findings may provide further insight into how these mechanisms affect humans.
Similar news · Read more »
- A bio-inspired flying robot sheds light on insect piloting abilities
02-08-2007 · EurekAlert!
Insects and other flying animals are somehow able to maintain appropriate flying heights and execute controlled takeoffs and landings despite lacking the advantage of sophisticated instrumentation available to human aviators. By characterizing the behavior of a specially designed flying robot, researchers have now been able to test a theory that helps explain how visual cues are used by insects during flight to ensure appropriate distance from the ground.
Similar news · Read more »
- A longer-living, healthier mouse that could hold clues to human aging
10-22-2007 · EurekAlert!
A study by scientists at UCL shows that mice lacking the insulin receptor substrate-1 are more resistant to aging than normal mice. The research adds to a growing body of work showing the importance of insulin signaling pathways as an aging mechanism in mammals -- and potentially humans.
Similar news · Read more »
- Mouse vision has a rhythm all its own
08-23-2007 · EurekAlert!
In the eyes of mammals, visual information is processed on a daily schedule set within the eyes themselve -- not one dictated by the brain, according to a new report in the Aug. 24 issue of the journal Cell, a publication of Cell Press. The researchers found in mice that the eyes' normal rhythmic response to light requires only that a molecular "clock" inside the retina go on ticking.
Similar news · Read more »
- UC Santa Barbara scientists clarify molecular basis of interferon action
07-19-2007 · EurekAlert!
Scientists at the University of California, Santa Barbara have made a significant discovery relating to viral infections in humans. They studied how a certain enzyme called PKR behaves in human cells, and showed that this enzyme is important for the antiviral effect of interferon against some viruses, but not others. Interferon is a naturally occurring substance that is also used as a drug to treat certain viruses such as Hepatitis C.
Similar news · Read more »
