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5 (1 votes)

Healthcare Prof:

5 (1 votes)

In the first study of its kind, researchers at Saint Louis University are recruiting patients for a clinical trial that will use cutting-edge imaging equipment to map the brain injuries of combat veterans and civilians, aiming to much better realize the nature of their injuries. Funded by a $5.three million grant from the U.S. Department of Defense, researchers will use three forms of imaging equipment together, producing much better information as well as a a lot more total taxonomy of brain injuries, details that investigators hope may possibly lead to much better remedy for blast injuries and car accidents.

“It’s an extraordinarily substantial study. We are casting about with a new net. We feel there is a lot of information that we don’t know about brain injuries,” stated Richard Bucholz, M.D., lead investigator of the study and director of the division of neurosurgery at Saint Louis University School of Medicine.

“It’s an opportunity to get a greater handle on the problem, to see what in fact constitutes head injury as opposed to relying on a vague description of somebody who is getting issues right after a blow to the head.”

Traumatic brain injury is caused by physical trauma towards the head, and symptoms can range from mild, with headaches or nausea, to severe, with seizures or decreased levels of consciousness. Within the United States, approximately 1.four million folks suffer traumatic brain injuries each year. Of these, 230,000 are hospitalized and survive, even though another 50,000 die.

At exactly the same time, combat veterans, now equipped with greater body armor and armored vehicles, are thought to be surviving injuries that were once lethal and are returning from war zones with brain injuries as opposed to fatal wounds.

As imaging technology and information of the brain continue to advance, researchers believe that they can very best leverage these developments by combining a number of kinds of imaging techniques: three Tesla MRI (magnetic resonance imaging), 64 Slice PET/CT (positron emission tomography / computed tomography), and MEG (magnetoencephalography). The three Tesla MRI and PET/CT provide structural images even though MEG produces functional imaging.

“The aim of the study is to try to realize circumstances where patients with moderate head injury have anatomically normal brains but substantial neurological impairment,” said Bucholz. “We have noticed soldiers coming out of the Iraqi conflict whose MRI and CT images look structurally normal, but who nevertheless have important neurological deficits. We’re trying to figure out why these brains are structurally normal but functionally abnormal.

“The situation is akin to looking at a city from 50,000 feet. We can see the highways and bridges and we can make out the outlines, but that does not tell us anything about how the traffic is moving on the ground. That’s what functional imaging will tell us.”

Scientists as soon as believed that an injured brain was irreversibly damaged and that its function could not be recovered right after being lost. It now appears, nonetheless, that the brain has the remarkable capacity to rewire itself – if one pathway is damaged, another could be able to take over. Researchers anticipate that this study may possibly aid them in identifying particular areas of the brain that could be rewired, as opposed to those which, when damaged, cannot be redirected.

In order to take advantage of the brain’s capacity to rewire, doctors need to know which areas of the brain continue to function, something the functional imaging is going to be able to tell them. By collecting information from a number of types of imaging equipment and plotting the results together, researchers will have a much more complete picture of the state of an injured patient’s brain.

Researchers hope to come across correlations between injured circuits and neurological symptoms. If they can decide which area of the brain corresponds with a certain neuropsychological problem, like speech or movement of a pinkie finger, they could, in some instances, be able to create therapies. In this way, researchers hope to discover a lot more about post-traumatic anxiety disorder (PTSD). If doctors are able to detect the disorder in images and quantify it, they’ll be better equipped to treat it.

The study, which will last about four years, seeks people age 18 and older who have suffered traumatic brain injury. Between 120 and 150 participants will be enrolled inside the SLU study. The group will include veterans and civilians with traumatic brain injury, also as wholesome civilians who have not suffered injury. Veterans will be enrolled from across the nation and civilians will be enrolled from the St. Louis area. Active duty military personnel are not eligible to participate inside the study.

Patients will probably be given neuroimaging and neurocognitive evaluations, which will last about two days. Up to 30 patients could be asked to enroll in a follow-up study 12 months after their initial participation.

Non-active duty military veterans who participate inside the trial will probably be provided with travel, lodging, and meals. All participants will be compensated for their time and all study associated procedures will be provided at no-cost.

“There can be a lot of interest on the portion of those that have head injuries to know ‘What is wrong with me? Why am I not the person I was just before the head injury?’ stated Bucholz. “For these folks, I feel it’s incredibly frustrating to get a structural image that says nothing’s wrong, and yet to know that, indeed, some thing is wrong.”

Established in 1836, Saint Louis University School of Medicine has the distinction of awarding the first medical degree west of the Mississippi River. The school educates physicians and biomedical scientists, conducts medical research, and provides wellness care on a nearby, national and international level. Analysis in the school seeks new cures and remedies in five key areas: cancer, liver disease, heart/lung disease, aging and brain illness, and infectious disease.

Source: Saint Louis University Medical Center

four.4 (five votes)

Healthcare Prof:

5 (1 votes)

It is important to comprehend what biological mechanisms contribute to an individual’s capacity to be resilient under conditions of extreme anxiety, such as those regularly skilled by soldiers, police, and firefighters. Dr. Charles A. Morgan III and his colleagues from Yale University and the VA National Center for PTSD have worked closely with collaborators in the Special Forces Underwater Warfare Operations Center to study special operations soldiers enrolled within the military Combat Diver Qualification Course (CDQC).

Dehydroepiandrosterone, or “DHEA” as it’s commonly identified, is actually a hormone that’s secreted by the adrenal gland in response to pressure. Though medical scientists have recognized for over a decade that DHEA provides beneficial, anti-stress effects in animals, they did not know until now regardless of whether this was also true for humans.

The scientists completed psychological and hormone assessments on a group of soldiers the day just before they began the month-long CDQC, and instantly soon after their final pass/fail exam – a highly stressful, nocturnal, underwater navigation exercise.

They discovered that soldiers with much more DHEA performed greater for the duration of the final underwater navigation exam than those with less DHEA. These findings are becoming published by Elsevier in the August 15th problem of Biological Psychiatry.

Underwater navigation is actually a job that relies on an area of the brain called the hippocampus that is extremely sensitive to the negative effects of stress. “Animal studies have shown that DHEA buffers against stress, in component, by modulating receptors in this region of the brain,” explained Dr. Morgan. “These findings are critical in understanding why and how soldiers may possibly differ in their ability to tolerate pressure and also raise the possibility that, within the future, compounds like DHEA could be utilized to shield military personnel from the negative impact of operational tension.”

Clearly, extra investigation is still required but these findings are a step forward within the quest to assist avoid or much better treat the symptoms of stress-related disorders that these high-risk individuals experience.

Notes:
The post is “Relationships Among Plasma Dehydroepiandrosterone and Dehydroepiandrosterone Sulfate, Cortisol, Symptoms of Dissociation, and Objective Performance in Humans Exposed to Underwater Navigation Stress” by Charles A. Morgan III, Ann Rasmusson, Robert H. Pietrzak, Vladimir Coric, and Steven M. Southwick. Authors Morgan, Pietrzak, Coric, and Southwick are affiliated with the Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut. Morgan, Pietrzak, and Southwick are also with the National Center for PTSD, VA CT Healthcare Method, West Haven, Connecticut. Rasmusson is from the Department of Psychiatry, Boston University, as well as the National Center for PTSD, VA Boston Healthcare Method, in Boston, Massachusetts. The write-up appears in Biological Psychiatry, Volume 66, Issue four (August 15, 2009), published by Elsevier.

Source:
Jayne Dawkins
Elsevier

2 (1 votes)

Healthcare Prof:

5 (1 votes)

In response to a recent surge in studies that integrate medicine and music, SAGE, the world’s leading independent academic and professional publisher, is pleased to launch Music and Medicine in July, a new interdisciplinary journal that will incorporate the investigation that combines the two disciplines.

This new official Journal of the International Association for Music and Medicine is peer reviewed and edited by Joanne Loewy, DA, LCAT, MT-BC, Director of the distinguished Louis Armstrong Center for Music & Medicine, Beth Israel Medical Center, New York, and David Aldridge, PhD, FRSM, Director of the notable Nordoff-Robbins Zentrum, Witten, for applied music in health care practice and investigation, Germany. Using the goal of bringing together information that’s currently scattered across a lot of disciplines and throughout several publications, Music and Medicine will focus on studies that integrate the science of medicine using the art of music, and also the art of medicine with the science of music.

The journal covers a number of subjects about how music and medicine interact, which includes: Analgesia and music sedation

Cancer care: active and receptive music approaches

Cardiology and rhythm

Dementia, stroke and music memory

Infant stimulation

Music in the course of surgery

Pressure response and music relaxation “Our intention is to provide a venue for the development of theory based on practice, and we will draw on particular study in music and medicine,” stated co-editor Loewy.

“We invite participation by way of dialogue about the impact that music has upon the brain, for human physiology, and in developing unique clinical locations, including sleep investigations and pain management,” said co-editor Aldridge.

Music and Medicine will be published bi-annually in 2009 and quarterly beginning in 2010 with an innovative journal launch strategy – free on-line access for the first 3 years for people by means of December 2011.

Source:
Jim Gilden
SAGE Publications

Healthcare Prof:

3.5 (2 votes)

Service top quality beliefs are usually positively associated to customer satisfaction – the greater the perceived service good quality, the greater the customer’s satisfaction. Nonetheless, an article published in the August concern of the Journal of Service Research finds this relationship may possibly be a lot more complicated in “negative service environments” (i.e., services that consumers would prefer not to have to use), such as well being screening, diagnostic tests, or even auto repair.

The authors of the paper studied the relationship in between anxiety and accuracy beliefs inside the context of mammography, 1 such “negative” service. They found that females coming in for a routine screening test felt far more pressure as their belief inside the efficacy of mammography increased. Meanwhile, those coming in for a diagnostic test felt less stress as their belief within the efficacy of mammography increased.

These findings recommend healthcare providers in hospitals should consider a patient’s stage in the testing process to determine how to very best manage the patient’s knowledge and decrease anxiety levels. The write-up suggests separating routine screening patients from diagnostic screening patients, so doctors and nurses can far better tailor communication to these various patient groups.

For routine screening patients, service providers should help reduce pressure for patients by playing soothing music or offering distracting magazines inside the waiting room. For diagnostic screening patients, service providers must focus on reducing patients’ uncertainty by having information on the testing process, the latest advances in preventive care, or the kinds of treatment to which it leads readily available inside the waiting room.

The article “Understanding Emotional Reactions for Negative Services: The Impact of Efficacy Beliefs and Stage in Process” by Elizabeth Gelfand Miller, Mary Frances Luce, Barbara E. Kahn and Emily F. Conant is readily available free of charge for a limited time at http://jsr.sagepub.com/cgi/reprint/12/1/87.

Source:
Hayden M. Smith
SAGE Publications

four.05 (22 votes)

Healthcare Prof:

4 (2 votes)

Article Opinions:2 posts
Stress about school and life keeps 68 percent of students awake at night – 20 percent of them at least once a week. Stress affects the good quality of their sleep far a lot more than alcohol, caffeine or late-night electronics use, a new study shows.

Not only that, much more than 60 percent of college students have disturbed sleep-wake patterns and a lot of take drugs and alcohol regularly to assist them do one or the other.

The study of 1,125 students appears on the internet inside the Journal of Adolescent Health. It found that only 30 percent of students sleep at least eight hours a night – the average requirement for young adults.

On weeknights, 20 percent of students stay up all night at least when a month and 35 percent stay up until three a.m. at least when a week. Twelve percent of poor sleepers miss class 3 or more times a month or fall asleep in class.

“Students underestimate the importance of sleep in their daily lives. They forgo sleep for the duration of periods of pressure, not realizing that they are sabotaging their physical and mental wellness,” stated study co-author Roxanne Prichard, an assistant professor of psychology in the University of St. Thomas, in St. Paul, Minn, where the study took place.

Impairments in the immune and cardiovascular systems are health risks related to insufficient sleep, as is weight gain, Prichard stated.

Daniel Taylor, an assistant professor of psychology in the University of North Texas, stated, “We know little about the well being of this age range even though the consequences – substance use, psychopathology, poor grades, dropout and subsequent unemployment – of sleep disturbance could possibly be greatest.”

Of concern to researchers was the students’ tendency to make use of alcohol and drugs to regulate their cycles. Poor sleepers are much more likely than great sleepers are to utilize medication to stay awake or fall asleep, and twice as likely to use alcohol to induce sleep. Alternating among stimulants and sedatives has been associated to a higher threat of addiction.

Prichard stated that physicians, counselors and student wellness professionals really should be a lot more conscious of and proactive in helping students realize the importance of sleep.

Lund HG, et al.
Sleep patterns and predictors of disturbed sleep in a huge populationof college students.
J Adolesc Health on-line, 2009.

Source:
Journal of Adolescent Health

4.75 (4 votes)

Healthcare Prof:

A new study by researchers at Wake Forest University School of Medicine may reveal how long-lasting memories form in the brain.

The researchers hope that the findings, now readily available online and scheduled to appear in an upcoming concern of Neuroscience, might 1 day aid scientists create remedies to avoid and treat conditions such as post-traumatic tension disorder.

“Although a lot of things are recognized about memories that form from repeat experiences, not a lot is known with regard to how some memories form with just one exposure,” said Ashok Hegde, Ph.D., an associate professor of neurobiology and anatomy and also the lead investigator on the study.

Scientists do know that individuals tend to don’t forget extremely pleased or sad occasions vividly because of the emotional connection, Hegde stated. Extreme emotions trigger the release of a chemical within the brain referred to as norepinephrine, which is related to adrenaline. That norepinephrine somehow assists memories last a lengthy time some even a lifetime.

For example, he stated, when a person asks, “Where had been you when the 9/11 attacks occurred?” a lot of people can recall right away where they had been and what they had been performing when they heard the news. They remember the moment as if it just occurred because a national tragedy arouses emotion and emotion somehow makes memories last for a lengthy time, Hegde explained.

For the present study, Hegde and colleagues looked at how norepinephrine assists female mice don’t forget the scent of their male partners soon after being exposed to it just when during mating.

The researchers studied the neural circuitry inside the accessory olfactory bulb, the portion of the brain exactly where memory of the male partner’s scent is stored. They discovered that norepinephrine, released in mice while mating, activates an enzyme called Protein Kinase C (PKC), specifically, the “alpha” isoform of PKC, inside the accessory olfactory bulb. The PKC enzyme has about a dozen forms, or isoforms, that exist within the brains of mammals, which includes humans.

“The fact that PKC-alpha is activated via the release of norepinephrine is an crucial discovery,” Hegde stated. “It explains how powerful memories form for distinct sensory experiences.”

In female mice, the info about the partner’s scent is carried by a chemical referred to as glutamate and also the reality that mating has occurred is conveyed by the release of norepinephrine, Hegde explained. Prior studies have located that glutamate and norepinephrine together, but not individually, cause powerful memory formation for the male’s scent.

“No one knew how this occurred,” Hegde stated. “Our findings indicate that the PKC-alpha enzyme tells the nerve cells within the brain that these two chemicals have arrived together. PKC-alpha is like the bouncer who lifts the rope blocking the entrance to an exclusive club for powerful memories when glutamate and norepinephrine arrive together. If they arrive alone, they cannot get past the velvet rope.”

Hegde explained that, when memory is stored in the brain, the connections among nerve cells, called synapses, alter. Powerful memories are formed when synapses grow to be stronger by way of structural adjustments that occur in the synapse. PKC-alpha works with glutamate and norepinephrine to make those alterations.

Hegde stated that the subsequent step in this line of investigation is to find out precisely how PKC-alpha can turn genes on in nerve cells. Understanding the precise sequence of molecules that are activated by PKC-alpha will aid researchers block the function of these molecules and test no matter whether they block memory formation. This future research won’t only explain powerful pleasant memories, but also how powerful unpleasant memories form in instances like post-traumatic tension disorder.

The current study was funded by the National Institutes of Well being, Edward Mallinckrodt Foundation and also the Whitehall Foundation.

Co-researchers had been Chenghai Dong, M.D., Ph.D., and Dwayne Godwin, Ph.D., each of the School of Medicine, and Peter Brennan, Ph.D., of the University of Bristol, United Kingdom.

Wake Forest University Baptist Medical Center is an academic well being method comprised of North Carolina Baptist Hospital, Brenner Children’s Hospital, Wake Forest University Physicians, and Wake Forest University Health Sciences, which operates the university’s School of Medicine and Piedmont Triad Investigation Park. The program comprises 1,056 acute care, rehabilitation and long-term care beds and has been ranked as 1 of “America’s Very best Hospitals” by U.S. News & World Report since 1993. Wake Forest Baptist is ranked 32nd in the nation by America’s Top Doctors for the number of its doctors regarded as very best by their peers. The institution ranks within the top third in funding by the National Institutes of Well being and fourth inside the Southeast in revenues from its licensed intellectual property.

Source: Wake Forest University Baptist Medical Center

3.67 (12 votes)

Healthcare Prof:

3 (three votes)

Article Opinions:two posts
Several everyday newspapers in the UK and elsewhere carry reports this week of a study commissioned by the Direct Line insurance firm that suggests a cup of tea reduces anxiety, not just by drinking it but also as a result of the calming effect of the ritual of putting the kettle on.

The study was conducted by Dr Malcolm Cross and Rita Michaels, psychologists in the City University London, and even though an executive summary is accessible on the web, there is no mention of no matter whether the study will likely be peer reviewed or published in a journal.

Cross and Michaels wrote that their intention was to “measure and greater realize how effective tea may be for inducing calm throughout a episode of anxiety” and beyond that they also wanted to explore how the ritual of tea-making affects stress.

In their background details, they referred to literature that suggests drinking tea is related to positive mood and feelings of relaxation, that its chemical properties have been linked with producing the brain a lot more alert and helping people recover from anxiety, and that it has benefical effects on the cardiovascular program.

For the study they did two issues, one to get some measurements along with the other to get some descriptive or qualitative outcomes. In each situations they employed exactly the same 42 volunteers (21 men and 21 women). Very first the volunteers underwent a “before and after” experiment, and then they talked about tea and their knowledge of it in tiny focus groups.

For the experiment, Cross and Michaels put the 42 volunteers into two evenly-sized groups: a tea group as well as a non-tea group, after which asked them to total two widely utilised and validated psychological tests, the Spielberger test and the State-Trait Anxiety Inventory for Adults (STAIA). These assessed each and every person’s anxiety level in the time (their “state”) too as his or her general tendency toward anxiety (“trait”).

The participants then completed a stress-inducing mental job that had to be completed by a particular time (known as the “d2 Test of Attention”). The test involves looking for instances of the letter “d” in a passage of text and then crossing it out or not, based on marks above and beneath it.

The tension comes from the short time you must total it and also from the fact that the letter “p” (which to the eye looks like a “d” upside down, so it rests on it for a split second) is scattered throughout the text as well, often with marks and often not.

After the tension test, the volunteers in the tea group were given a cup of tea and also the volunteers in the non-tea group just had a glass of water. Each groups then completed the anxiety questionnaire again (just the state measure, not the trait one).

After the experiment, Cross and Michaels invited the volunteers to take part in focus group discussions and answer questions from which the researchers could evaluate “the emotive significance and impact of generating tea for participants”.

The researchers also asked them in general terms what teameant to them, what it created them feel, and why.

The researchers identified that:There was no considerable distinction in anxiety between the two groups prior to the mental pressure task.
However, afterwards, the differences had been “significant and marked”.
The non tea group (that drank only water right after the job), showed a 25 per cent boost in anxiety level following the task.
This compared with a 4 per cent reduce in anxiety level within the tea-drinking group.
The comments produced within the focus group discussions “confirmed thatthe ritual of creating and consuming tea does make an important contributionto the overall effect of mediating stress”.
In the focus group and qualitative assessment, participants said they felt much more relaxed when getting tea, and tended to explain this having a sense of “partition”, exactly where there is an “end” or perhaps a “break” from a preceding period of anxiety.
One volunteer said that tea produced a “chill-out moment”, which helped them “draw an line under” their stressful knowledge.
Others stated they deliberately utilized tea to cope with stress, for instance when preparing for a job interview, or to relax after a stressful journey.
Some members of the tea group stated the act of having tea created for them (eg after the stress job) was linked with feelings of communality and solidarity; they felt “looked after”, and “cared for”.The researchers stated that the truth that the anxiety level in the tea drinking group in fact fell beneath their pre-task level showed two issues: tea not only relieved the anxiety of the job itself, however it also made the participants much more relaxed than they had been prior to they did the task.

They stated they also noticed a difference in social behaviour in between the tea group and also the non tea group when they took their drinks right after the stress job. The non tea group drank their water in silence, whilst the tea group chatted amongst themselves. They wrote that:

“The tea appearedto catalyse conversation, and helped develop rapport both in between theparticipant and tea-maker (study assistant) and amongst the wider group.”

Amongst their concluding remarks, Cross and Michaels wrote:

“The present study shows that throughout periods of tension tea’s reputationfor inducing calm extends beyond the effects of its physical properties onour bodies and brains.”

They wrote that it isn’t just the chemical properties of tea, but also what it means in our culture, and in Britain in certain, to drink tea in firm as a social thing and also as stress coping mechanism, that affects our physiology.

However, some authorities are sceptical of the findings and no matter whether they support the conclusions, due to the fact this was a tiny study, the participants had been not randomly assigned to their groups, and it was not “blinded” (it was possibly clear to every participant, and definitely towards the researchers administering them, what was getting tested and why).

Another limitation of the study will be the truth the researchers say really small concerning the participants and how they selected the sample, so it isn’t clear how representative they’re. For example they say absolutely nothing about their ages, no matter whether they had a history of mental illness (this could affect the generalizability of the anxiety test results for example), just how much they liked tea, and what time of day they took the tests.

In other words, what elements did they take into account that could have accounted for the differences observed in the outcomes? For example, examination of the graph shown using the results shows that there already was a difference of 100 points on the anxiety scale in between the two groups before they did the stress-task, but apart from a comment about it not becoming statistically considerable, there is no account of why this could be so.

Experts who reviewed the study for NHS Choices said the report is also weak due to the fact it will not say anything about the statistical significance tests employed to check how valid the outcomes could be. This makes it hard for other scientists to see how robust the results are and whether or not they genuinely support the conclusions.

They described the study as “soft evidence supporting a common-sense theory” and that “better designed trials will be required if anybody is really interested in how tea helps to calm tea drinkers”.

Perhaps, according to what the authors have published so far, one ought to view this study as tentative rather than definitive, supplying a valuable and interesting hypothesis for a larger a lot more robust clinical trial involving representative samples of the population.

“The Social Psychological Effects of Tea Consumption on Stress: Executive Summary.”
Malcolm Cross and Rita Michaels.
Direct Line report at www.teamergency.com.
Published on-line 7 August 2009.

Additional source: NHS Options.

Written by: Catharine Paddock, PhD
Copyright: Medical News Today
Not to be reproduced with out permission of Medical News Right now

4.75 (four votes)

Healthcare Prof:

Many men and women encounter symptoms of post-traumatic stress following a heart attack, and anxiety, depression and social withdrawal are also commonplace. These are the findings of a study by Susan Ayers of the University of Sussex and colleagues Claire Copland and Emma Dunmore, published recently, within the British Journal of Health Psychology.

Seventy 4 people who had skilled a heart attack within the prior 12 weeks and who had been attending cardiac rehabilitation programmes took part in the study. The sample was predominantly male (76 per cent) with an average age of 62 years. Participants completed questionnaires assessing post traumatic anxiety disorder (PTSD) symptoms, also as perceptions of the severity of their heart attack as well as the extent to which they believed their lives were in danger. Physical wellness, anxiety, depression and impairment of social activities were also measured, as had been dysfunctional coping strategies including denial and avoidance.

Of the participants, 16 per cent met clinical criteria for acute PTSD plus a further 18 per cent reported moderate to severe symptoms. Those with PTSD symptoms had been much more likely to have poorer psychological health and social impairments. Findings revealed that men and women who tended to make use of denial and avoidance coping tactics were more most likely to create PTSD symptoms – this was a far more effective predictor of symptoms than patients’ perceptions of the severity of the heart attack along with the threat to life.

Dr Ayers stated: “Around 150,000 individuals within the UK survive the acute stage of a heart attack each and every year. Feelings of fear, anxiety and depression are widespread following such an event. The findings of this study suggest that a high proportion expertise extremely severe distress – this has the prospective to impair recovery, top quality of life and threaten future health. It’s therefore crucial that cardiac patients are screened for psychological distress, like anxiety, depression and PTSD, and supplied suitable therapy if essential.”

Source
British Psychological Society

4.two (10 votes)

Healthcare Prof:

4.two (five votes)

UCLA psychologists have determined for the first time that a gene linked with physical pain sensitivity is associated with social discomfort sensitivity also.

Their study indicates that variation in the mu-opioid receptor gene (OPRM1), often related to physical pain, is related to just how much social discomfort a person feels in response to social rejection. Folks with a rare form of the gene are a lot more sensitive to rejection and knowledge much more brain evidence of distress in response to rejection than those with the far more typical form.

The research was published Aug. 14 in the early on-line edition of Proceedings of the National Academy of Sciences and will appear in the print version in the coming weeks.

The findings give weight towards the typical notion that rejection “hurts” by showing that a gene regulating the body’s most potent painkillers – mu-opioids – is involved in socially painful experiences too, said study co-author Naomi Eisenberger, UCLA assistant professor of psychology and director of UCLA’s Social and Affective Neuroscience Laboratory.

In the study, researchers collected saliva samples from 122 participants to assess which type of the OPRM1 gene they had after which measured sensitivity to rejection in two methods. Initial, participants completed a survey that measured their self-reported sensitivity to rejection. They had been asked, by way of example, just how much they agreed or disagreed with statements like “I am very sensitive to any signs that a person may not want to talk to me.”

Next, a subset of this group, 31 participants, was studied making use of functional magnetic resonance imaging (fMRI) at UCLA’s Ahmanson-Lovelace Brain Mapping Center for the duration of a virtual ball-tossing game in which participants were ultimately socially excluded. Subjects were told that they would be connected over the net with two other players who were also in fMRI scanners and that they would all be playing the interactive ball-tossing game. In reality, even so, participants were playing having a preset pc program, not other men and women.

Initially, participants had been included in the activity but had been then excluded when the two other “players” stopped throwing the ball to them.

“What we located is the fact that people using the uncommon type of the OPRM1 gene, who had been shown in previous work to be a lot more sensitive to physical pain, also reported greater levels of rejection sensitivity and showed higher activity in social pain-related regions of the brain – the dorsal anterior cingulate cortex and anterior insula – in response to being excluded,” Eisenberger stated.

The dorsal anterior cingulate cortex and anterior insula are brain regions usually related to the distress of physical discomfort. Previous research by Eisenberger and her colleagues has shown that these brain regions are also involved in the discomfort of social rejection.

“Although it has lengthy been suggested that mu-opioids play a role in social discomfort – and you will find convincing animal models that show this – this is the initial human study to link this mu-opioid receptor gene with social sensitivity in response to rejection,” Eisenberger said.

“These findings suggest that the feeling of being given the cold shoulder by a romantic interest or not becoming picked for a schoolyard game of basketball may arise from exactly the same circuits that are quieted by morphine,” said Baldwin Way, a UCLA postdoctoral scholar as well as the lead author on the paper.

Eisenberger argues that this overlap within the neurobiology of physical and social pain makes very good sense.

“Because social connection is so critical, feeling literally hurt by not having social connections may possibly be an adaptive method to ensure we maintain them,” she said. “Over the course of evolution, the social attachment method, which ensures social connection, may possibly have truly borrowed a number of the mechanisms of the pain program to maintain social connections.”

Shelley E. Taylor, UCLA distinguished professor of psychology, is also a co-author on the paper.

The research was funded by a National Institute of Mental Wellness (NIMH) postdoctoral fellowship, the National Institute on Aging, the NIMH and also the Harry Frank Guggenheim Foundation.

Source:
Stuart Wolpert
University of California – Los Angeles

3 (1 votes)

Healthcare Prof:

Postpartum depression has lengthy been identified to compromise a mother’s capacity to optimally care for her newborn. But just how maternal depression can negatively impact infant development and physiological regulation will be the subject of a study to be published within the August 2009 issue of the Journal of the American Academy of Child and Adolescent Psychiatry (JAACAP).

Feldman and colleagues at the Bar-Ilan University and Sheba Medical Center in Tel-Hashomer, Israel studied three infant outcomes – social engagement, fear regulation, and physiological stress reactivity, in a cohort of 100 mother-infant dyads at nine months postpartum. These three infant outcomes are deemed foundations of social-emotional growth and are related to the infant’s ability to manage physiological stress and regulate negative emotions.

The researchers collected a huge community cohort of 971 mothers who reported symptoms of depression and anxiety at 2 days postpartum and once more at 6 months. Of these, a cohort of 100 mothers and infants were observed at 9 months and included three groups: Mothers who had been depressed across the initial nine months and had been diagnosed as suffering a Significant Depression Disorder at 9 months, mothers who reported high levels of anxiety across the first 9 months and had been diagnosed with an Anxiety Disorder at 9 months, and manage mothers who reported low anxiety and depressive symptoms across the first 9 months right after childbirth. To eliminate the influence of other known danger elements such as teenage pregnancy or premature birth, which could independently contribute to maternal depression, the researchers only recruited females who had been in stable relationships, had been physically healthy, educated, and people who delivered a healthy full-term infant.

In the post titled, “Maternal Depression and Anxiety across the Postpartum Year and Infant Social Engagement, Fear Regulation, and Anxiety Reactivity,” the authors reported that infants of depressed mothers scored the poorest on all outcome measures at 9 months: they showed the lowest levels of social engagement in the course of interactions with their mothers, were unable to self-regulate during scenarios that introduced novelty, fussed and cried much more typically, and their physiological tension response showed both higher baseline levels plus a a lot more pronounced stress reactivity. Kids of anxious mothers showed lower social engagement than children of control mothers but greater than kids of depressed mothers. However, their physiological pressure response was comparable to young children of depressed mothers.

The mother’s sensitive behavior played an critical role in shaping infant outcomes. Sensitive mothering was associated to the infant’s social engagement and protected against the effects of maternal depression on the development of the child’s social skills. Maternal sensitivity also had a positive impact on the infant’s physiological pressure response and decreased the degree of physiological reactivity as measured by cortisol reactivity to anxiety.

Sensitive mothering is critical in an infant’s ability to create social competence and further study of the effects of maternal depression on child development inside the very first year of life is warranted.

Feldman and colleagues stated, “By recruiting a large community sample, separating maternal depression from typically-occurring conditions, comparing cases of main depressive disorder to those of post-partum anxiety disorders, and assessing the chronicity of the mother’s mood from birth, the findings might illuminate distinct pathways leading from maternal depression to child outcomes across the initial year of life. In addition, the exclusive associations found between maternal depression and every outcome underscore the need to think about maternal depression within the context of the child’s global rearing environment and in relation towards the attainment of distinct developmental objectives.”

The study findings by Drs. Feldman and colleagues had been supported by the Israel Science Foundation (#1318/08), the US-Israel Bi-National Science Foundation (#2005-273), along with the NARSAD Foundation (Independent Investigator Award, RF).

The study is published within the Journal of the American Academy of Child and Adolescent Psychiatry and on the web.

References

“Maternal Depression and Anxiety across the Postpartum Year and Infant Social Engagement, Fear Regulation, and Anxiety Reactivity. “
Feldman R, Granat A, Pariente C, Kanety H, Kuint J, Gilboa-Schechtman E.
Journal of the American Academy of Child and Adolescent Psychiatry. 2009; 48:919-927.

Source
The Journal of the American Academy of Child and Adolescent Psychiatry