Top of Page Describe the organism s used in the study. This includes giving the 1 source supplier or where and how the orgranisms were collected2 typical size weight, length, etc3 how they were handled, fed, and housed before the experiment, 4 how they were handled, fed, and housed during the experiment. In genetics studies include the strains or genetic stocks used. For some studies, age may be an important factor.
Inresearchers renewed their focus on these conditions and sought to identify the processes that will provide new avenues for prevention and treatment. The findings include a study that shows that damage to certain areas of the brain may actually protect against the development of PTSD.
Coupled with other neuroimaging studies, these results provide a probable neural circuit for the disorder that may yield new discoveries about who may be more susceptible to it as well as new targets for treatment.
By targeting fear extinction at the neural level, two new compounds are showing promise in both the prevention and treatment of PTSD. And finally, scientists have discovered that progesterone is no mere sex hormone. Rat hormone lab report was testing for potential contaminants in the debris or air that might be dangerous to people working within the perimeter.
And what you thought was a rubber hose, just something peculiar that caught your eye, would instead be a severed arm. Years later, he still sees them. Inafter suffering from flashbacks and panic attacks so severe that he became afraid to leave his home, Centore was diagnosed with PTSD. According to the Diagnostic and Statistical Manual of Mental Disorders DSM-IVthe standard handbook for mental health professionals, PTSD is the development of characteristic symptoms after experiencing an extreme traumatic event that threatens death or bodily harm.
Those symptoms include reexperiencing the event over time i. The disorder can be debilitating, wreaking havoc with work and social lives.
PTSD is not a new phenomenon.
Greek historian Herodotus made mention of battle-related stress symptoms after the Battle of Marathon in B. The Vietnam War was a turning point. Since health professionals did not understand the underlying neuropathology of the disorder, they most often treated patients with counseling, exposure therapy, and anti-anxiety medications.
Looking to the Past to See the Future In a novel approach to studying PTSD and the brain, Judith Pizarro Andersen and colleagues at the University of California, Irvine, looked to old paper medical records instead of genetic studies or neuroimaging protocols. Mining Civil War files, the researchers were able to extrapolate the long-term health effects of traumatic war experiences on thousands of Civil War vets.
Their research, published in the February Archives of General Psychiatry, revealed that being a prisoner of war, being wounded, or witnessing the deaths of a large number of fellow soldiers was linked to higher incidence of cardiac, gastrointestinal, and nervous disease later in life.
The subjects were grouped according to the site of the injury, into the ventromedial prefrontal cortex group top or the amygdala and temporal lobe comparison group bottom. In the images, the shade of the brain area corresponds to a scale at bottom indicating the number of veterans who exhibited brain damage there.
But it needs to be better understood. Her work, using positron-emission tomography and functional magnetic resonance imaging fMRIhas found significant differences in brain areas linked to memory and emotion in patients with PTSD.
And many studies with PTSD patients have found exaggerated responsivity to those kinds of stimuli. In a study published in the February issue of Nature Neuroscience, Grafman and his collaborators looked at Vietnam veterans who had both brain injury and exposure to war trauma.
The thalamus is also of interest in PTSD. Keith Young, a researcher at the Center of Excellence for Research on Returning War Veterans, part of the Central Texas Veterans Healthcare System in Waco, focuses on alterations in brain anatomy that may predispose individuals to stress disorders.
Both vision and hearing go through the thalamus before getting repackaged, so to speak, and sent to the frontal cortex and limbic system. This particular genotype results in an increased number of neurons in the thalamus.
And that, in turn, can make those individuals more susceptible to the development of major depression and PTSD. Fear Conditioning and Extinction Many people live through traumatic situations, but most of them do not develop debilitating psychiatric disorders. Michael Davis, a neurobiologist at Emory University, studies the cellular mechanisms underlying fear extinction.Read the latest research on endocrinology.
Learn about hormone disorders, new hormone treatment options, hormone therapy and more. What is GW (Cardarine)? GW (or Cardarine), is a research chemical developed in the s to prevent and cure tumor formation in the colon, prostate, and timberdesignmag.coms done in the early s have found that GW and other PPAR agonists have also been able to stop metabolic disorders such as obesity and diabetes through specific gene expressions.
Why a Scientific Format? The scientific format may seem confusing for the beginning science writer due to its rigid structure which is so different from writing in the humanities.
One reason for using this format is that it is a means of efficiently communicating scientific findings to the broad community of scientists in a . Scientists develop skin patch with on-the-spot sweat monitor app.
Posted by admin on Nov 23, in Health | 0 comments. Scientists in the United States have developed a flexible microfluidic device that easily sticks to the skin and measures sweat levels to show how the wearer’s body is responding to exercise.
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UNITED NATIONS ENVIRONMENT PROGRAMME INTERNATIONAL LABOUR ORGANISATION WORLD HEALTH ORGANIZATION INTERNATIONAL PROGRAMME ON CHEMICAL SAFETY ENVIRONMENTAL HEALTH CRITERIA Aluminium This report contains the collective views of an international group of experts and does not necessarily represent the decisions or the stated policy of .