Category: Mental Health

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Higher Than Expected Levels of Psychosis Spectrum Symptoms among Youth

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A new study published in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging has found evidence that Psychosis Spectrum Symptoms (PSS) are often present in youth accessing mental health services.

From a profile of the initial 417 youth aged 11–24 participating in the study, 50% were shown to meet the threshold for Psychosis Spectrum Symptoms, a number that study co-lead Associate Professor Kristin Cleverley says was higher than expected, meaning there is a large number of children with these symptoms accessing mental health services.

Cleverley, of the Lawrence Bloomberg Faculty of Nursing Cleverley, says that what is novel about this study is that researchers are assessing early indicators that might predict whether someone is more at risk of developing Psychosis Spectrum Disorder, and examine whether there is a point at which earlier intervention for that youth could be more effective.

“Traditionally, early psychosis care starts when there is a serious presentation of psychotic symptoms, which usually occurs in the late teen years,” says Cleverley. “The current approach to identifying children at risk of developing a psychotic disorder is only about five percent effective, but with this study we can start to assess certain patterns or changes in function that can signal if an earlier intervention may be beneficial.”

Psychosis Spectrum Disorder can be extremely disabling, and is linked to cognitive impairment, long-term disability, and higher rates of death by suicide than other mental illnesses. Even without a diagnosis of psychosis, Psychosis Spectrum Symptoms can severely affect youth.

This study is one of three projects being led as part of the Toronto Adolescent and Youth (TAY) Cohort Study that is set to follow 1500 youth over the course of five years. The goal of the cohort study is to better understand the populations of youth seeking mental health treatment, how their mental health symptoms and functioning change over time, and whether early predictors of psychosis spectrum disorder can be determined.

This study was co-designed with patient and caregivers in addition to involving extensive engagement from clinicians. A novel aspect of the TAY Cohort Study is youth are given access to a patient-facing dashboard of their research results that is also integrated into their clinical record.

“We wanted to ensure that the study was embedded in the clinical program so that research assessments could be immediately utilised within clinical practice, including supporting decisions about interventions or services,” says Cleverley.

This longitudinal study will include a follow-up every six months, and will provide researchers access to information about whether symptoms in these youth become chronic or episodic, and whether these changes are related to developmental milestones or environmental stressors, or changes to mental health services.

“Our goal with this research is really to characterise this population better so that we can identify new strategies that will complement existing strategies for early identification of youth at risk of psychosis,” says Cleverley. “It also creates an important opportunity for graduate students and researchers to develop sub-studies for this sample that will enable further research to improve youth mental health outcomes.”

Source: University of Toronto

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A Mechanism that Links Anxiety to Testosterone

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A groundbreaking study has unveiled a significant link between anxiety disorders and a brain receptor known as TACR3, as well as testosterone. published last month in the journal Molecular Psychiatry.

Anxiety is a common response to stress, but for those dealing with anxiety disorders, it can significantly impact daily life.

Clinical evidence has hinted at a close connection between low testosterone levels and anxiety, particularly in men with hypogonadism, a condition characterised by reduced sexual function.

However, the precise nature of this relationship has remained unclear until now.

Prof Shira Knafo, head of the Molecular Cognitive Lab at Ben-Gurion University, led this new study which discovered male rodents exhibiting exceedingly high anxiety levels had notably lower levels of a specific receptor called TACR3 in their hippocampus.

The hippocampus is a brain region closely associated with learning and memory processes. TACR3 is part of the tachykinin receptor family and responds to a substance known as neurokinin.

This observation is what prompted the researchers to investigate the link between TACR3 deficiency, sex hormones, anxiety, and synaptic plasticity.

The rodents were classified based on their behavior in a standard elevated plus maze test measuring anxiety levels.

Subsequently, their hippocampi were isolated and underwent gene expression analysis to identify genes with varying expressions between rodents with extremely low anxiety and those with severe anxiety.

One gene that stood out was TACR3. Previous research had revealed that mutations in genes associated with TACR3 led to a condition known as “congenital hypogonadism,” resulting in reduced sex hormone production, including testosterone.

Notably, young men with low testosterone often experienced delayed sexual development, accompanied by depression and heightened anxiety.

This pairing led researchers to investigate the role of TACR3 further.

Prof. Knafo and her team were aided in their research by two innovative tools they crafted themselves.

The first, known as FORTIS, detects changes in receptors critical for neuronal communication within living neurons.

By utilizing FORTIS, they demonstrated that inhibiting TACR3 resulted in a sharp increase in these receptors on the cell surface, blocking the parallel process of long-term synaptic strengthening, known as LTP.

The second pioneering tool employed was a novel application of cross-correlation to measure neuronal connectivity within a multi-electrode array system.

This tool played a pivotal role in uncovering the profound impact of TACR3 manipulations on synaptic plasticity.

Synaptic plasticity refers to the ability of synapses, the connections between brain cells, to change their strength and efficiency.

This dynamic process is fundamental for the brain’s adaptation to the environment.

Through synaptic plasticity, the brain can reorganize its neural circuitry in response to new experiences.

This flexibility allows for the modification of synaptic connections, enabling neurons to strengthen or weaken their communication over time.

Essentially, synaptic plasticity is a key mechanism by which the brain encodes and stores information, adapting continuously to the ever-changing external stimuli and internal states.

Importantly, it revealed that deficiencies stemming from TACR3 inactivity could be efficiently rectified through testosterone administration, offering hope for novel approaches to address challenges related to anxiety associated with testosterone deficiency.

TACR3 is seemingly a central player in bridging anxiety and testosterone.

The researchers have unravelled the complex mechanisms behind anxiety and opened avenues for novel therapies, including testosterone treatments, that could improve the quality of life for individuals grappling with sexual development disorders and associated anxiety and depression.

Source: Ben-Gurion University of the Negev

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Financial Stress Linked to Worse Biological Health

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People who experience stressful life events or circumstances are more likely to have worse biological health, as indicated by biomarkers involved in the interaction between our immune, nervous and endocrine systems, according to a new study by UCL researchers.

The study, published in the journal Brain, Behavior and Immunity, found that not only major stressful experiences such as bereavement but chronic challenges such as financial strain were detrimental to the healthy interaction of these systems.

Communication between our immune, nervous, and endocrine systems is necessary to maintain good health. Disruption of these processes is linked to a wide range of mental and physical illnesses, from cardiovascular disease to depression and schizophrenia.

When a threat like stress occurs, signals between the immune, nervous, and endocrine systems are activated and spur physiological and behavioural changes.

In this new study, the researchers analysed blood concentrations of four biomarkers in 4934 people aged 50 and over who were participants of the English Longitudinal Study of Ageing. Two of these were proteins involved in the innate immune response to inflammation (C-reactive protein and fibrinogen), and two were hormones involved in the physiology of the stress response (cortisol and IGF-1).

The team used a sophisticated statistical technique, latent profile analysis, to identify clusters of biomarker activity. Three groups were identified and labelled as low risk to health, moderate risk, and high risk. The researchers then looked at how earlier exposure to stressful circumstances might affect people’s likelihood of being in the high-risk group.

They found that exposure to stressful circumstances overall, ranging from being an informal carer to experiencing a bereavement or divorce in the last two years, was linked to a 61% increase in likelihood of belonging to the high-risk group four years later.

Separately, the effect was also cumulative, as the likelihood of belonging to the high-risk group increased by 19% for each stressor experienced, for those who experienced more than one stress-inducing circumstance.

People who reported only financial strain – the perception that they may not have enough financial resources to meet their future needs – were 59% more likely, four years later, to belong to the high-risk group.

Lead author, PhD candidate Odessa S. Hamilton (UCL Institute of Epidemiology & Health Care), said: “When the immune and neuroendocrine systems function well together, homeostasis is maintained and health is preserved. But chronic stress can disrupt this biological exchange and lead to disease.

“We found that financial stress was most detrimental to biological health, although more research is needed to establish this for certain. This may be because this form of stress can invade many aspects of our lives, leading to family conflict, social exclusion, and even hunger or homelessness.”

Experiencing stress over a prolonged period of time can disturb the communication between the immune and neuroendocrine systems. That is because our response to stress is similar to our response to sickness, activating some of the same pathways (for instance, both responses trigger the production of immune system signals called pro-inflammatory cytokines).

The researchers also looked at genetic variants previously found to influence our immune-neuroendocrine response and found that the association between stressful life circumstances and belonging to the high-risk group four years later remained true irrespective of genetic predisposition. 

Source: University College London

Categories : Mental HealthTags :

Visions of Nonphysical World are Common Among Cognitively Healthy American Indians

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Visual hallucinations are common among people with Lewy body dementia and other types of dementia. Identifying visual hallucinations is an important component of a wide variety of medical and psychiatric diagnoses and treatments, but without cultural context, some patients’ symptoms can be misinterpreted or misdiagnosed.

There is little in medical literature about normal spiritual experiences in American Indian participants in the context of a neurocognitive evaluation. University of Minnesota Medical School researchers sought to understand how the culture and spirituality of the American Indian Ojibwe tribe affect a doctor’s assessment of normal aging.

Publishing in JAMA Network Open, the research team found that visions of the nonphysical world are common among cognitively healthy Ojibwe individuals and can represent normal spiritual experiences. 

“Consideration of a patient’s cultural background and belief system can help avert erroneous disqualification for disease-modifying therapy, exclusion from clinical trials and all the negative ramifications associated with a misdiagnosis of psychiatric disease,” said William Mantyh, MD, an assistant professor at the University of Minnesota Medical School and  behavioural neurologist with M Health Fairview.

In partnership with an Ojibwe Tribal Nation in Minnesota, the study recruited 33 cognitively healthy tribal elders aged 55 years or older. The research found 48% of participants reported frequent transient visions of the nonphysical world that generally were benevolent and involved spiritual beings and/or ancestors. 

According to the research team, clinicians would benefit from careful consideration of cultural or spiritual context to avoid misdiagnosis of neuropsychiatric disease. 

“Today’s environment of infrequent or insufficiently short cognitive evaluations – an average 16-minute face-to-face visit with a physician and increasing use of pre-visit symptom checklists increase the risk of falsely attributing a spiritual experience to a hallucination,” said Dr Mantyh. 

Dr Mantyh and his research team’s overarching goal is to ensure accurate diagnosis of neurodegenerative disease in American Indian communities. To reach this goal, the research team is including American Indian participants in the development of a new Alzheimer’s disease blood test. So far, more than 250 participants have been included. These new Alzheimer’s disease blood tests, up to 95% accurate, directly detect the proteins related to Alzheimer’s disease in the blood, but they also look at a patient’s APOE ε4 gene. APOE ε4 is the most significant genetic risk factor for Alzheimer’s disease, but its effect on Alzheimer’s disease depends on a patient’s ancestry. 

Source: University of Minnesota

Categories : Mental Health NeurologyTags :

Scientists may have Found out How Rapid-acting Antidepressants Work

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Rapid-acting antidepressants, including ketamine, scopolamine and psilocybin, have been found to have immediate and lasting positive effects on mood in patients with major depressive disorder but how these effects arise is unknown. New research led by the University of Bristol and published in Science Translational Medicine explored their neuropsychological effects and found that all three of these drugs can modulate affective biases associated with learning and memory.

Negative affective biases are a core feature of major depressive disorder. Affective biases occur when emotions alter how the brain processes information and negative affective biases are thought to contribute to the development and continuation of depressed mood.

The research team used an affective bias test, based on an associative learning task, to investigate the effects of rapid-acting antidepressants (RAADs) in rats.

They found that all the treatments were able to reduce negative affective biases associated with past experiences but there were additional characteristics of the dissociative anaesthetic, ketamine, and the serotonergic psychedelic, investigational COMP360 psilocybin (Compass Pathways’ proprietary formulation of synthetic psilocybin), which could explain why the effects of a single treatment can be long-lasting.

The findings suggest that these sustained effects are due to adaptive changes in the brain circuits which control affective biases, and these can influence how past experiences are remembered.

The effects at low doses were very specific to affective bias modulation and were localised to the prefrontal cortex of the brain, a region known to play an important role in mood.

Emma Robinson, Professor of Psychopharmacology in the School of Physiology, Pharmacology & Neuroscience at Bristol, and lead author, said: “Using a behavioural task we showed that drugs that are believed to have rapid and sustained benefits in depressed patients, specifically modulate affective biases associated with past experiences, something which we think is really important for understanding why they can improve a patient’s mood so quickly.

“We also found differences in how ketamine, scopolamine and COMP360 psilocybin interact with these neuropsychological mechanisms which may explain why the effects of a single treatment in human patients can be long-lasting, days (ketamine) to months (psilocybin).

“By using an animal model, we have been able to investigate these important interactions with learning and memory processes and neural plasticity and propose a two-stage model that may explain the effects we observe.”

In the task, each animal learnt to associate a specific digging material with a food reward under either treatment or control conditions.

The treatment condition is designed to generate a change in the animal’s affective state and a choice test is used to quantify the affective bias this generates.

Acute treatment with the RAADs ketamine, scopolamine, or psilocybin prevented the retrieval of the negative affective bias induced in this model.

However, the most exciting finding was at 24 hours after treatment when low, but not high, doses of ketamine and psilocybin led to a re-learning effect where the negatively biased memory was retrieved with a more positive affective valence.

Only psilocybin, but not ketamine or scopolamine treatment also positively biased new experiences.

Exploring in more detail the re-learning effects of ketamine in the studies, the researchers found they were protein synthesis-dependent, localised to the medial prefrontal cortex and could be modulated by cue-reactivation, consistent with their predictions of experience-dependent neural plasticity.

The study’s findings propose a neuropsychological mechanism that may explain both the immediate and sustained effects of RAADs, potentially linking their effects on neural plasticity with mood.

Source: University of Bristol

Categories : Mental Health Metabolic DisordersTags :

Feeling Depressed Linked to Short-term Increase in Bodyweight

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Increases in symptoms of depression are associated with a subsequent increase in bodyweight when measured one month later, new research from the University of Cambridge has found.

The study, published in PLOS ONE, found that the increase was only seen among people with overweight or obesity, but found no link between generally having greater symptoms of depression and higher bodyweight.

Research has suggested a connection between weight and mental health – with each potentially influencing the other – but the relationship is complex and remains poorly understood, particularly in relation to how changes in an individual’s mental health influence their bodyweight over time.

To help answer this question, researchers at Cambridge’s Medical Research Council (MRC) Epidemiology Unit examined data from over 2,000 adults living in Cambridgeshire, UK, who had been recruited to the Fenland COVID-19 Study.

Participants completed digital questionnaires on mental wellbeing and bodyweight every month for up to nine months during the COVID-19 pandemic (August 2020 – April 2021) using a mobile app developed by Huma Therapeutics Limited.

Questions assessed an individual’s symptoms of depression, anxiety and perceived stress.

A higher score indicated greater severity, with the maximum possible scores being 24 for depression, 21 for anxiety and 40 for stress.

The team then used statistical modelling to explore whether having poorer mental wellbeing than usual was related to changes in bodyweight one month later.

The researchers found that for every increment increase in an individual’s usual score for depressive symptoms, their subsequent weight one month later increased by 45g.

This may seem small but would mean, for example, that in an individual whose depressive symptoms score rose from five to 10 (equal to an increase from ‘mild’ to ‘moderate’ depressive symptoms) it would relate to an average weight gain of 225g (0.225kg).

This effect was only observed in those individuals with overweight (defined as BMI 25-29.9kg/m2) or with obesity (BMI of over 30kg/m2). Individuals with overweight had on average an increase of 52g for each increment point increase from their usual depressive symptoms score and for those with obesity the comparable weight gain was 71g.

The effect was not seen in those individuals with a healthy weight.

First author Dr Julia Mueller from the MRC Epidemiology Unit said: “Overall, this suggests that individuals with overweight or obesity are more vulnerable to weight gain in response to feeling more depressed. Although the weight gain was relatively small, even small weight changes occurring over short periods of time can lead to larger weight changes in the long-term, particularly among those with overweight and obesity.

“People with a high BMI are already at greater risk from other health conditions, so this could potentially lead to a further deterioration in their health. Monitoring and addressing depressive symptoms in individuals with overweight or obesity could help prevent further weight gain and be beneficial to both their mental and physical health.”

The researchers found no evidence that perceived stress or anxiety were related to changes in weight.

Senior author Dr Kirsten Rennie from the MRC Epidemiology Unit said: “Apps on our phones make it possible for people to answer short questions at home more frequently and over extended periods of time, which provides much more information about their wellbeing. This technology could help us understand how changes in mental health influence behaviour among people with overweight or obesity and offer ways to develop timely interventions when needed.”

Although previous studies have suggested that poor mental health is both a cause and consequence of obesity, the research team found no evidence that weight predicted subsequent symptoms of depression.

The research was supported by the Medical Research Council.

The original text of this story is licensed under Creative Commons CC BY-SA 4.0.

Source: University of Cambridge.  Note: Content may be edited for style and length.

Journal Reference:

  1. Julia Mueller, Amy L. Ahern, Rebecca A. Jones, Stephen J. Sharp, Alan Davies, Arabella Zuckerman, Benjamin I. Perry, Golam M. Khandaker, Emanuella De Lucia Rolfe, Nick J. Wareham, Kirsten L. Rennie. The relationship of within-individual and between-individual variation in mental health with bodyweight: An exploratory longitudinal study. PLOS ONE, 2024; 19 (1): e0295117 DOI: 10.1371/journal.pone.0295117
Categories : Mental Health NeurologyTags :

Targeted Neurostimulation Makes People More Hypnotisable

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Hypnotisability appears to be a stable trait that changes little throughout adulthood, much like personality and IQ. But now, for the first time, Stanford Medicine researchers have demonstrated a way to temporarily heighten hypnotisablity, potentially allowing more people to access the benefits of hypnosis-based therapy.

In the new study, published in Nature Mental Health, the researchers found that less than two minutes of electrical stimulation targeting a precise area of the brain could boost participants’ hypnotisability for about one hour.

“We know hypnosis is an effective treatment for many different symptoms and disorders, in particular pain,” said lead author Afik Faerman, PhD, a postdoctoral scholar in psychiatry. “But we also know that not everyone benefits equally from hypnosis.”

Focused attention

Approximately two-thirds of adults are at least somewhat hypnotisable, and 15% are considered highly hypnotisable, meaning they score 9 or 10 on a standard 10-point measure of hypnotisability.

“Hypnosis is a state of highly focused attention, and higher hypnotisability improves the odds of your doing better with techniques using hypnosis,” said David Spiegel, MD, a professor of psychiatry and behavioural sciences and a senior author of the study.

Spiegel has devoted decades to studying hypnotherapy and using it to help patients control pain, lower stress, stop smoking and more. Several years ago, Spiegel led a team that used brain imaging to uncover the neurobiological basis of the practice. They found that highly hypnotisable people had stronger functional connectivity between the left dorsolateral prefrontal cortex, which is involved in information processing and decision making; and the dorsal anterior cingulate cortex, involved in detecting stimuli.

“It made sense that people who naturally coordinate activity between these two regions would be able to concentrate more intently,” Spiegel said. “It’s because you’re coordinating what you are focusing on with the system that distracts you.”

Shifting a stable trait

With these insights, Spiegel teamed up with Nolan Williams, MD, associate professor of psychiatry and behavioural sciences, who has pioneered non-invasive neurostimulation techniques to treat conditions such as depression, obsessive-compulsive disorder and suicidal ideation.

The hope was that neurostimulation could alter even a stable trait like hypnotisability.

In the new study, the researchers recruited 80 participants with fibromyalgia, a chronic pain condition that can be treated with hypnotherapy. They excluded those who were already highly hypnotisable.

Half of the participants received transcranial magnetic stimulation, in which paddles applied to the scalp deliver electrical pulses to the brain. Specifically, they received two 46-second applications that delivered 800 pulses of electricity to a precise location in the left dorsolateral prefrontal cortex. The exact locations depended on the unique structure and activity of each person’s brain.

“A novel aspect of this trial is that we used the person’s own brain networks, based on brain imaging, to target the right spot,” said Williams, also a senior author of the study.

The other half of participants received a sham treatment with the same look and feel, but without electrical stimulation. Hypnotisability was assessed by clinicians immediately before and after the treatments, with neither patients nor clinicians knowing who was in which group.

The researchers found that participants who received the neurostimulation showed a statistically significant increase in hypnotisability, scoring roughly one point higher. The sham group experienced no effect.

When the participants were assessed again one hour later, the effect had worn off and there was no longer a statistically significant difference between the two groups.

“We were pleasantly surprised that we were able to, with 92 seconds of stimulation, change a stable brain trait that people have been trying to change for 100 years,” Williams said. “We finally cracked the code on how to do it.”

The researchers plan to test whether different dosages of neurostimulation could enhance hypnotisability even more.

“It’s unusual to be able to change hypnotisability,” Spiegel said. A study of Stanford University students that began in the 1950s, for example, found that the trait remained relatively consistent when the students were tested 25 years later, as consistent as IQ over that time period. Recent research by Spiegel’s lab also suggests that hypnotisability may have a genetic basis.

Bigger implications

Clinically, a transient bump in hypnotisability may be enough to allow more people living with chronic pain to choose hypnosis as an alternative to long-term opioid use. Spiegel will follow up with the study participants to see how they fare in hypnotherapy.

The new results could have implications beyond hypnosis. Faerman noted that neurostimulation may be able to temporarily shift other stable traits or enhance people’s response to other forms of psychotherapy.

“As a clinical psychologist, my personal vision is that, in the future, patients come in, they go into a quick, non-invasive brain stimulation session, then they go in to see their psychologist,” he said. “Their benefit from treatment could be much higher.”

Story Source: Stanford Medicine

Categories : Mental Health Obstetrics & GynaecologyTags :

Perinatal Depression Triples the Risk of Suicidal Behaviour

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Maternal suicide is an alarming public health issue and the second most common cause of death during the postnatal period. New research from Karolinka Institutet in Sweden shows that mothers with clinically diagnosed perinatal depression had a three times higher risk of suicidal behaviour compared to mothers without perinatal depression. The findings were published in JAMA Network Open.

Some 13–36% of maternal deaths are attributable to suicide, and the consequences are devastating to the newborn and the family. Maternal suicide is linked to a complex interplay of risk factors, including history of psychiatric disorders, socioeconomic disparities, and inadequate access to healthcare service. It is of paramount importance to identify high-risk populations for preventing maternal suicide and suicidal attempt.

Our findings suggest that women with clinically diagnosed PND are at an increased risk of suicidal behavior, particularly within one year after PND yet throughout 18 years of follow-up. This highlights the pressing need for vigilant clinically monitoring and prompt intervention for this vulnerable population to prevent such devastating outcomes, regardless of pre-pregnancy history of psychiatric disorders.

Hang Yu, PhD student

In this nationwide population-matched cohort study with a maximal follow-up of 18 years, 86 551 women with PND from 2001 to 2017 and 865 510 unaffected women individually matched on age and calendar year at delivery. Sibling comparison was employed to account for familial confounding. It was found that women with a clinical diagnosis of PND have an elevated risk of suicidal behaviour compared to population-matched women or their full sisters without PND. Attenuated yet still substantially elevated risks were observed when comparing with full sisters without PND who share partial genetic and familial environmental factors with affected women. Importantly, such excess risk was apparent among women regardless of their history of psychiatric disorders, suggesting that PND is linked to an added risk of suicidal behaviour beyond that the risk associated with psychiatric disorders occurring before the perinatal period. Moreover, the risk elevations were particularly high shortly after the PND diagnosis, and despite of the rapid decline over time, remained throughout 18 years of follow-up.

Source: Karolinska Institutet

Categories : Mental HealthTags :

Losing a Parent in Childhood and Separation Anxiety in Women

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Women who lost a parent as children may be more likely to experience separation anxiety with romantic partners during adulthood, according to a study published in Stress and Health. In addition to feeling distressed when separated from their partners, these women may also experience anxious attachment, or worry that significant others will not be available at times of need.

The study included 60 women who lost one or both parents in their youth and 60 who had living parents. Based on participants’ answers to questionnaires, women who lost a parent reported higher levels of anxious attachment and adult separation anxiety from a partner. The groups did not differ, however, in terms of avoidant attachment, or the desire to maintain autonomy and emotional distance from their parents during childhood and from their partners during adulthood.

In women who lost a parent, adult separation anxiety and anxious attachment peaked in the initial five years of romantic relationships and gradually declined after a decade.

“A future study is suggested to delve into how the duration of a romantic relationship impacts separation anxiety and anxious attachment among women who have experienced early parental loss in childhood,” said corresponding author Ora Peleg, PhD, of the Max Stern Yezreel Valley College and the Academic College Emek Yezreel, in Israel.

Source: Wiley

Categories : Mental Health Surgeries & ProceduresTags :

No Mental Health Benefit from Bariatric Surgery for Young Patients

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Sleeve gastrectomy. Credit: Scientific Animations CC4.0

Young people who have had surgery for obesity do not improve their mental health despite significant and permanent weight loss. At the same time, bariatric surgery also increases the risk of early alcohol problems. This is according to the largest long-term study of young people who have undergone bariatric surgery, the results of which were published in Lancet Child and Adolescent Health.

The researchers studied mental health problems – before and after surgery – among all young people in Sweden who underwent bariatric surgery between 2007 and 2017. The study was conducted using register data, which enabled the scope of the study and facilitated comparisons with other groups in society. 

The study recruited 1554 adolescents (< 21 years) with severe obesity underwent bariatric surgery between 2007 and 2017, 1169 (75%) of whom were female. At time of surgery, the mean age was 19·0 years [SD 1·0], and the mean BMI was 43·7 kg/m2 (SD 5·5). They were matched with 15 540 adolescents from the general population.

It was found that young people who underwent surgery were more likely to have received treatment and medication for mental health problems already five years before the surgery.

“Although mental illness generally increases between the ages of 15 and 21, for this group the need for treatment increased faster than for young people in general”, says Kajsa Järvholm, Associate Professor of Psychology at Lund University.

Unfortunately, this pattern continued even after obesity surgery; the young people who had the surgery continued to have a greater need for mental health treatment than their peers. 

“Obesity surgery has very positive effects on weight, blood sugar and blood pressure control, but when it comes to mental health, it does not get better or worse after bariatric surgery”, says Martin Neovius, Professor of Clinical Epidemiology at Karolinska Institutet.

Additional findings from the new study include an increase in dependency diagnoses, particularly on alcohol, in the surgical group, both in comparison to pre-surgery and to young people in general.

The study is the largest long-term study in the world of young people who have had obesity surgery.

Source: Karolinska Institutet