Children who are breastfed for longer than six months could be at lower risk of mental health problems later in life, according to Australian research.
A study by the Telethon Institute for Child Health Research in Perth looked at 2,366 children born to women enrolled in a pregnancy study in the state of Western Australia.
Each of the children underwent a mental health assessment when they were aged two, five, eight, 10, and 14.
The researchers found that breastfeeding could help babies cope better with stress and may signal a stronger mother-child attachment which could provide lasting benefits.
"Breastfeeding for a longer duration appears to have significant benefits for the onward mental health of the child into adolescence," researcher Dr. Wendy Oddy, who led the study, wrote in The Journal of Pediatrics.
READ MORE @ REUTERS
Showing posts with label stress. Show all posts
Showing posts with label stress. Show all posts
Thursday, January 14, 2010
Thursday, December 24, 2009
Stress speeds mental decline in impaired elders
Chronic stress can speed up memory decline in older people who already have some impairment in their mental function, a new study in the American Journal of Psychiatry shows.
But being stressed doesn't appear to affect memory in older people without such impairment, Dr. Guerry M. Peavy of the University of California San Diego and colleagues found.
Research suggests a "strong relationship" between increased stress and memory loss, the researchers note, but few investigators have looked at stress and memory over time. Chronic stress may affect memory by causing prolonged release of so-called "stress hormones," such as cortisol, resulting in damage to the brain.
To investigate, the researchers followed 52 people 65 to 97 years old for up to three years. Twenty-five had no loss of mental function at the beginning of the study, while the remaining 27 showed evidence of mild mental impairment.
To measure stress, the researchers asked study participants about whether they had experienced stressful life events in the previous year or six months, such as being hospitalized or having a death in the family. A person was considered to have "high stress" if they reported at least one such event in a given period.
READ MORE @ REUTERS
But being stressed doesn't appear to affect memory in older people without such impairment, Dr. Guerry M. Peavy of the University of California San Diego and colleagues found.
Research suggests a "strong relationship" between increased stress and memory loss, the researchers note, but few investigators have looked at stress and memory over time. Chronic stress may affect memory by causing prolonged release of so-called "stress hormones," such as cortisol, resulting in damage to the brain.
To investigate, the researchers followed 52 people 65 to 97 years old for up to three years. Twenty-five had no loss of mental function at the beginning of the study, while the remaining 27 showed evidence of mild mental impairment.
To measure stress, the researchers asked study participants about whether they had experienced stressful life events in the previous year or six months, such as being hospitalized or having a death in the family. A person was considered to have "high stress" if they reported at least one such event in a given period.
READ MORE @ REUTERS
Friday, October 23, 2009
Why antidepressants don't work for so many Northwestern research finds drugs aim at wrong target
More than half the people who take antidepressants for depression never get relief.
Why? Because the cause of depression has been oversimplified and drugs designed to treat it aim at the wrong target, according to new research from the Northwestern University Feinberg School of Medicine. The medications are like arrows shot at the outer rings of a bull's eye instead of the center.
A study from the laboratory of long-time depression researcher Eva Redei, presented at the Neuroscience 2009 conference in Chicago this week, appears to topple two strongly held beliefs about depression. One is that stressful life events are a major cause of depression. The other is that an imbalance in neurotransmitters in the brain triggers depressive symptoms.
Both findings are significant because these beliefs were the basis for developing drugs currently used to treat depression.
Redei, the David Lawrence Stein Professor of Psychiatry at Northwestern's Feinberg School, found powerful molecular evidence that quashes the long-held dogma that stress is generally a major cause of depression. Her new research reveals that there is almost no overlap between stress-related genes and depression-related genes.
READ MORE @ EUREKALERT
Why? Because the cause of depression has been oversimplified and drugs designed to treat it aim at the wrong target, according to new research from the Northwestern University Feinberg School of Medicine. The medications are like arrows shot at the outer rings of a bull's eye instead of the center.
A study from the laboratory of long-time depression researcher Eva Redei, presented at the Neuroscience 2009 conference in Chicago this week, appears to topple two strongly held beliefs about depression. One is that stressful life events are a major cause of depression. The other is that an imbalance in neurotransmitters in the brain triggers depressive symptoms.
Both findings are significant because these beliefs were the basis for developing drugs currently used to treat depression.
Redei, the David Lawrence Stein Professor of Psychiatry at Northwestern's Feinberg School, found powerful molecular evidence that quashes the long-held dogma that stress is generally a major cause of depression. Her new research reveals that there is almost no overlap between stress-related genes and depression-related genes.
READ MORE @ EUREKALERT
Saturday, July 25, 2009
Antidepressants, not sleep drugs, often prescribed for insomnia * Story Highlights * Doctors prescribed more antidepressants for insomnia
Insomnia, the inability to fall or stay asleep, can make the days feel fuzzy and the nights never-ending.
The disorder can increase the risk for depression and suicidal thoughts, lower work productivity and even raise blood pressure, studies have shown.
About 40 million Americans have chronic sleep disorders that prevent them from getting good rest. Singer Michael Jackson struggled with insomnia, a nutritionist who worked for him told CNN. Sources close to Jackson told CNN that during a world tour in the mid-'90s, the pop star traveled with an anesthesiologist who would "take him down" at night, then "bring him back up."
Stress or traumatic events can trigger the sleeping disorder. Insomnia drugs help the patient sleep, but they do not treat the underlying cause, which could be a result of another illness, life changes or shifting work schedules. And patients who seek relief for insomnia may not receive the most effective prescription.
Over the last two decades, doctors treating sleep disorders have prescribed more antidepressants than insomnia drugs, according to several published analyses. And there is insufficient evidence that most antidepressants are effective in treating insomnia, concluded a National Institutes of Health panel that convened on the topic in 2005.
Doctors may be factoring in cost considerations and their own familiarity with prescribing antidepressants relative to newer sleep medications, experts said.
READ MORE @ CNN
The disorder can increase the risk for depression and suicidal thoughts, lower work productivity and even raise blood pressure, studies have shown.
About 40 million Americans have chronic sleep disorders that prevent them from getting good rest. Singer Michael Jackson struggled with insomnia, a nutritionist who worked for him told CNN. Sources close to Jackson told CNN that during a world tour in the mid-'90s, the pop star traveled with an anesthesiologist who would "take him down" at night, then "bring him back up."
Stress or traumatic events can trigger the sleeping disorder. Insomnia drugs help the patient sleep, but they do not treat the underlying cause, which could be a result of another illness, life changes or shifting work schedules. And patients who seek relief for insomnia may not receive the most effective prescription.
Over the last two decades, doctors treating sleep disorders have prescribed more antidepressants than insomnia drugs, according to several published analyses. And there is insufficient evidence that most antidepressants are effective in treating insomnia, concluded a National Institutes of Health panel that convened on the topic in 2005.
Doctors may be factoring in cost considerations and their own familiarity with prescribing antidepressants relative to newer sleep medications, experts said.
READ MORE @ CNN
Tuesday, June 16, 2009
Report on Gene for Depression Is Now Faulted
One of the most celebrated findings in modern psychiatry — that a single gene helps determine one’s risk of depression in response to a divorce, a lost job or another serious reversal — has not held up to scientific scrutiny, researchers reported Tuesday.
The original finding, published in 2003, created a sensation among scientists and the public because it offered the first specific, plausible explanation of why some people bounce back after a stressful life event while others plunge into lasting despair.
The new report, by several of the most prominent researchers in the field, does not imply that interactions between genes and life experience are trivial; they are almost certainly fundamental, experts agree.
But it does suggest that nailing down those factors in a precise way is far more difficult than scientists believed even a few years ago, and that the original finding could have been due to chance. The new report is likely to inflame a debate over the direction of the field itself, which has found that the genetics of illnesses like schizophrenia and bipolar disorder remain elusive.
READ MORE @ NY TIMES
The original finding, published in 2003, created a sensation among scientists and the public because it offered the first specific, plausible explanation of why some people bounce back after a stressful life event while others plunge into lasting despair.
The new report, by several of the most prominent researchers in the field, does not imply that interactions between genes and life experience are trivial; they are almost certainly fundamental, experts agree.
But it does suggest that nailing down those factors in a precise way is far more difficult than scientists believed even a few years ago, and that the original finding could have been due to chance. The new report is likely to inflame a debate over the direction of the field itself, which has found that the genetics of illnesses like schizophrenia and bipolar disorder remain elusive.
READ MORE @ NY TIMES
Saturday, June 13, 2009
63 percent of RA patients suffer psychiatric disorders, with depressive spectrum conditions most likely
Over half (63%) of patients with rheumatoid arthritis (RA) also suffer from psychiatric disorders, with the majority of these (87%) occurring in the depressive spectrum, according to the results of a new study presented today at EULAR 2009, the Annual Congress of the European League Against Rheumatism in Copenhagen, Denmark. Interestingly, over half (52%) of the patients studied indicated that they had experienced stress events before the onset of their RA.
The study also revealed a number of other interesting findings about the emotional burden of RA:
* Cognitive dysfunction was diagnosed in 23% of patients, with 16% of this attributed to depression
* A third (33%) suffered from sleep disorders
* Those with depression also exhibited more severe RA (measured by X-ray), greater functional insufficiency and pain, as well as having received less aggressive treatment than patients without depression. (No significant differences in age, duration of illness, gender or DAS28* scores were noted between the two groups)
* Significantly, cognitive impairments were found more often (p=0.02) in patients older than 50 years (39% vs. 9%)
* The age of the first prednisone intake was significantly higher (p<0.05) in patients with depression compared to those without (48 vs. 30 years)
Dr Tatiana Lisitsyna from the State Institute of Rheumatology RAMS, Russian Federation, who conducted the study, said: "Psychiatric disorders are a very common comorbidity for people with RA, and they tend to be stress-related and associated with disease activity and chronic pain. Evaluating and addressing the mental health of those with RA should be a regular feature of rheumatology practice to improve quality of life and reduce the potentially distressing psychological burden of RA."
READ MORE @ EUREKALERT
The study also revealed a number of other interesting findings about the emotional burden of RA:
* Cognitive dysfunction was diagnosed in 23% of patients, with 16% of this attributed to depression
* A third (33%) suffered from sleep disorders
* Those with depression also exhibited more severe RA (measured by X-ray), greater functional insufficiency and pain, as well as having received less aggressive treatment than patients without depression. (No significant differences in age, duration of illness, gender or DAS28* scores were noted between the two groups)
* Significantly, cognitive impairments were found more often (p=0.02) in patients older than 50 years (39% vs. 9%)
* The age of the first prednisone intake was significantly higher (p<0.05) in patients with depression compared to those without (48 vs. 30 years)
Dr Tatiana Lisitsyna from the State Institute of Rheumatology RAMS, Russian Federation, who conducted the study, said: "Psychiatric disorders are a very common comorbidity for people with RA, and they tend to be stress-related and associated with disease activity and chronic pain. Evaluating and addressing the mental health of those with RA should be a regular feature of rheumatology practice to improve quality of life and reduce the potentially distressing psychological burden of RA."
READ MORE @ EUREKALERT
Thursday, August 28, 2008
Antidepressant Medications May Have Alternate Use
A new study published in the August 15th issue of Biological Psychiatry finds that hippocampal neurogenesis (neuron birth in the hippocampus part of the brain) might be used by the monoaminergic antidepressants (related to the secretion of monoamine neurotransmitters such as dopamine and serotonin) to counteract the effects of stress, whereas similar effects could be achieved by directly targeting the hypothalamo-pituitary-adrenal (HPA) axis and related neuropeptides (amino acid chains).
READ MORE @ MEDICAL NEWS TODAY
READ MORE @ MEDICAL NEWS TODAY
Monday, June 16, 2008
Hunger hormone increases during stress, may have antidepressant effect
New research at UT Southwestern Medical Center may explain why some people who are stressed or depressed overeat.
While levels of the so-called "hunger hormone" ghrelin are known to increase when a person doesn't eat, findings by UT Southwestern scientists suggest that the hormone might also help defend against symptoms of stress-induced depression and anxiety.
"Our findings in mice suggest that chronic stress causes ghrelin levels to go up and that behaviors associated with depression and anxiety decrease when ghrelin levels rise. An unfortunate side effect, however, is increased food intake and body weight," said Dr. Jeffrey Zigman, assistant professor of internal medicine and psychiatry at UT Southwestern and senior author of a study appearing online today and in a future print edition of Nature Neuroscience.
Dr. Michael Lutter, instructor of psychiatry at UT Southwestern and lead author of the study, said, "Our findings support the idea that these hunger hormones don't do just one thing; rather, they coordinate an entire behavioral response to stress and probably affect mood, stress and energy levels."
READ MORE @ EUREKALERT
While levels of the so-called "hunger hormone" ghrelin are known to increase when a person doesn't eat, findings by UT Southwestern scientists suggest that the hormone might also help defend against symptoms of stress-induced depression and anxiety.
"Our findings in mice suggest that chronic stress causes ghrelin levels to go up and that behaviors associated with depression and anxiety decrease when ghrelin levels rise. An unfortunate side effect, however, is increased food intake and body weight," said Dr. Jeffrey Zigman, assistant professor of internal medicine and psychiatry at UT Southwestern and senior author of a study appearing online today and in a future print edition of Nature Neuroscience.
Dr. Michael Lutter, instructor of psychiatry at UT Southwestern and lead author of the study, said, "Our findings support the idea that these hunger hormones don't do just one thing; rather, they coordinate an entire behavioral response to stress and probably affect mood, stress and energy levels."
READ MORE @ EUREKALERT
Sunday, October 21, 2007
Evidence unclear on treating US veterans' stress
Many U.S. combat veterans from Iraq and Afghanistan are clearly suffering from post-traumatic stress disorder but it is not at all clear which treatments work to help them, an Institute of Medicine panel said on Thursday.
The only therapies that have been shown to work are so-called exposure therapies, in which people are guided in a gradual, step-by-step confrontation with a fear or stressor, the expert committee said.
"At this time, we can make no judgment about the effectiveness of most psychotherapies or about any medications in helping patients with PTSD," said Dr. Alfred Berg of the University of Washington in Seattle.
READ MORE @ REUTERS
The only therapies that have been shown to work are so-called exposure therapies, in which people are guided in a gradual, step-by-step confrontation with a fear or stressor, the expert committee said.
"At this time, we can make no judgment about the effectiveness of most psychotherapies or about any medications in helping patients with PTSD," said Dr. Alfred Berg of the University of Washington in Seattle.
READ MORE @ REUTERS
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