Friday, May 26, 2023

Virtual village can empower vulnerable groups of people

UC Riverside-led study focused on older people living with HIV during the pandemic

Peer-Reviewed Publication

UNIVERSITY OF CALIFORNIA - RIVERSIDE

Brandon Brown and Jasmine Lucero Lopez 

IMAGE: PHOTO SHOWS BRANDON BROWN (LEFT) AND JASMINE LUCERO LÓPEZ. view more 

CREDIT: UC RIVERSIDE.

RIVERSIDE, Calif. -- New psychosocial stressors and widespread lifestyle changes resulted from to the COVID-19 pandemic, contributing to depression, isolation, and anxiety. Many studies have explored the impact of the pandemic on the general population’s mental health. But what about the impact on increased isolation among the growing number of older people living with HIV (OPLH)?

To explore this question, a team led by scientists at the University of California, Riverside, designed a virtual village — an online space facilitating positive connections among people — to provide health, community-based, and personal resources for OPLH who are at least 50 years old. The village provides a safe space for participants to create support groups and reduce the negative effects of social isolation.

“We found the use of a virtual village can be a viable method of connecting vulnerable groups to services and to each other, and provides guidance on how to expand in future research with similar concepts,” said Jasmine Lucero López, the first author of the paper that appears in the Journal of the International AIDS Society. “We identified three key lessons on how to enhance future studies.” 

The three lessons are:

  • It is important to be mindful that some older populations may experience significant difficulty using newer technology.
  • Interactive social events are frequently attended and requested by participants.
  • Living with HIV is not enough to bond individuals.

The study had 24 participants from the Coachella Valley area, Los Angeles metro area, and Tampa Bay region. The researchers were invited last month to present the results of their study to the National Academy of Medicine.

“COVID-19 has resulted in quickly evolving studies that address unique issues, yet few focus on supporting individuals who are aging in place with HIV,” said López, an undergraduate honors student in the Department of Psychology and lead of the HIV and aging research team. “Our study reports on the pilot phase of a virtual village and provides insight into the needs of the people aging with HIV during the global pandemic.”

The researchers embedded six interventions — social mixers, a buddy system, expert presentations, resources, guided discussions, and mindful meditation — into the virtual village during the pilot period. They found social mixers, hosted biweekly, were the most attended of the interventions.

During the social mixers, many participants told the researchers that they looked forward to these social events because they promoted the formation of interpersonal relationships. Some even reported that these types of interventions enhanced a sense of community. 

“Whether it was through our buddy system or Bingo nights, these interventions made it easier for participants to empower one another,” López said. “Our proposed social interventions not only assisted with the creation of a virtual village, but also facilitated friendships that extended into in-person meetings.

Brandon Brown, who advises López, explained that older people living with HIV are at a high risk of facing dangerous symptoms of COVID-19, which are attributed to age factors and being immunocompromised. 

“This population has adhered to more strict isolative guidelines,” said Brown, a professor of social medicine, population, and public health in the School of Medicine. “This social isolation has negatively impacted psychological well-being, which directly influences the overall health of an individual. Mental health comorbidities and AIDS survivor syndrome further intensify the detrimental impact of isolation during a pandemic. For these reasons, it is essential to explore new methods to connect vulnerable populations in a manner that prioritizes the improvement of quality of life. We hope our study leads to an expansion of networks and enables this community to connect on a more widespread scale.”

According to Brown, virtual villages have gradually gained popularity, especially during the past decade with increased accessibility to the internet through mobile and other devices. 

“We chose the topic of HIV for this particular virtual village project due to research and advocacy focus of our team, but our process of co-creating a virtual community can be replicated for any health or social topic,” he said. “As long as there is a common identity and evidence of community cohesion, we believe a virtual village can be useful to bring people together and supplement or even facilitate in-person activities.”

Brown and López were joined in the study by researchers at UC Merced; UC San Diego; University of South Florida; Northeastern University, Mass.; and HIV + Aging Research Project – Palm Springs, Calif.

The research was supported in part by a grant from Merck Sharp & Dohme Corp and the National Institutes of Health.

The research paper is titled “Lessons learned in co-creating a Virtual Village for people ageing with HIV.”

The University of California, Riverside is a doctoral research university, a living laboratory for groundbreaking exploration of issues critical to Inland Southern California, the state and communities around the world. Reflecting California's diverse culture, UCR's enrollment is more than 26,000 students. The campus opened a medical school in 2013 and has reached the heart of the Coachella Valley by way of the UCR Palm Desert Center. The campus has an annual impact of more than $2.7 billion on the U.S. economy. To learn more, visit www.ucr.edu.

“Second-guessing” is a hard-wired behavior, study suggests

Peer-Reviewed Publication

UNIVERSITY OF UTAH HEALTH

Genetics of decision-making 

IMAGE: UNIVERSITY OF UTAH HEALTH SCIENTISTS HAVE FOUND THAT GENES BIAS DECISION-MAKING, EVEN DECISIONS THAT SEEM IRRATIONAL. view more 

CREDIT: CORNELIA STACHER-HÖRNDLI, PHD

Have you ever made a decision that, in hindsight, seemed irrational? A new study with mice, which could have implications for people, suggests that some decisions are, to a certain extent, beyond their control. Rather, the mice are hard-wired to make them.

“This research is telling us that animals are constrained in the decisions they make,” says Christopher Gregg, PhD, a neurobiologist at University of Utah Health and senior author of the study that recently published in iScience. “Their genetics push them down one path or another.”

Gregg and his research team started investigating decision-making after noticing mice repeatedly making what appeared to be an irrational decision. After finding a stash of hidden seeds, rather than staying put to eat them, mice kept returning to a location that had food in it the day before. Only on this day, the original location was empty.

“It was as if the mice were second-guessing whether the first location really had no food,” Gregg says. “Like they thought they had missed something.”

To Gregg and the study’s co-authors, the behavior didn’t make any sense. The animals ended up eating less because of the time spent continuously returning to the empty food patch. If that kind of behavior causes mice to eat less in the wild, it could spell trouble, Gregg explains, because not getting enough calories can be detrimental for a mouse.

The real surprise came after discovering that mice lacking a specific gene didn’t “second-guess” where to go and instead were more likely to stay and eat the food they found. As a result, they consumed more calories overall. This was the first evidence the scientists found that genes could bias decision-making, even decisions that did not seem logical, at least to a human. In this case, the gene Arc appeared to be important for compelling the mice to continue searching for food even when it didn’t appear to be necessary.

“We all have a clear sense of what it is like to second-guess something, but who would have thought that this type of behavior could be so profoundly affected by one gene?” says Cornelia Stacher- Hörndli, PhD, neurobiologist and co-author. “This raises the question, are other cognitive biases under genetic control?”

Decoding behavior

To the human eye, a mouse’s life seems pretty simple. When placed in a naturalistic setting in Gregg’s lab, they left home, explored their surroundings, searched for food, ate a little, and made stops back home in between. But the view looked quite different after a machine learning algorithm deconstructed their journeys.

A custom program built by Gregg and study co-author Jared Emery analyzed 1,609 foraging excursions and saw that the mice repeated 24 behavior sequences over and over. As the mice foraged, they strung together the sequences like building blocks, interspersing them with spontaneous behaviors to construct more complex behavior patterns. One of them was the second-guessing behavior. “To a certain extent, you could predict the future,” Gregg remarks.

That future changed for mice missing the gene, Arc. Six of the 24 behavior sequences were altered, and together, those differences short-circuited the second-guessing behavior. Previous research had shown Arc is involved in learning and memory. But overall, analysis showed that the mice’s memory—and their other behaviors—were largely intact. The implication is that the effect on those six behaviors was specific.

“One intriguing idea is that the animals evolved to make those decisions because they were somehow advantageous in the wild,” Gregg says. He explains one possibility: when mice go back and forth to evaluate previous food locations, it helps them create a mental map. And that might help them find food faster the next time around. “Genetically controlled cognitive bias may allow for effective decision-making during foraging,” he says.

The question remains, is there a biological basis for other types of cognitive bias? And could genes guide decision-making in humans? More research will tell. “I believe that this research is foundational for a new field that we are calling ‘decision genetics,’” Stacher-Hörndli says.

Mice carry out a finite number of stereotyped behaviors while foraging 

In addition to Gregg and Stacher-Hörndli, additional co-authors are Alicia Ravens, Susan Steinward, and Jason Shepherd from University of Utah Health and Jared Emery from Storyline Health, Inc.

The research was supported by grants from the National Institutes of Health and published as “Arc Regulates a Second-Guessing Cognitive Bias During Naturalistic Foraging Through Effects on Discrete Behavior Modules.”

About University of Utah Health

University of Utah Health  provides leading-edge and compassionate care for a referral area that encompasses Idaho, Wyoming, Montana, and much of Nevada. A hub for health sciences research and education in the region, U of U Health has a $458 million research enterprise and trains scientists, the majority of Utah’s physicians, and health care providers at its Colleges of Health, Nursing, and Pharmacy and Schools of Dentistry and Medicine. With more than 20,000 employees, the system includes 12 community clinics and five hospitals. U of U Health is recognized nationally as a transformative health care system and provider of world-class care.

Social stress, problem-solving deficits contribute to suicide risk for teen girls


Adolescents who have trouble solving interpersonal problems and experience greater interpersonal stress may be at elevated risk for suicidal behavior, study suggests

Peer-Reviewed Publication

AMERICAN PSYCHOLOGICAL ASSOCIATION

Teen girls who have greater difficulty effectively solving interpersonal problems when they experience social stress, and who experience more interpersonal stress in their lives, are at greater risk of suicidal behavior, suggests research published by the American Psychological Association.

Suicide is the second-leading cause of death among teens, and rates of suicidal behavior are particularly high among girls. Previous research has found that interpersonal stressors – such as conflict with peers, friends and family – are related to suicidal behavior. Some theories of suicidal behavior suggest that poor social problem-solving skills may contribute to the link, possibly because teens with poorer social problem-solving skills are more likely to see suicide as a viable solution to their distress when they feel they’ve exhausted other options.

The current study aimed to test these associations by considering both experimentally simulated and real-world measures of social stress. The research was published in the Journal of Psychopathology and Clinical Science.

“The findings provide empirical support for cognitive and behavioral theories of suicide that suggest that deficits in abilities to effectively manage and solve interpersonal problems may be related to suicidal behavior,” said study lead author Olivia Pollak, MA, of The University of North Carolina at Chapel Hill. “Clinically, this is notable, as problem-solving features prominently in several treatments for suicidal or self-harming behaviors.”

Participants were 185 girls ages 12 to 17 who had experienced some mental health concerns in the past two years. At the beginning of the study, participants completed surveys or interviews about their mental health symptoms and suicidal behaviors. Participants also completed a task assessing their social problem-solving skills, which involved responding to scenarios involving interpersonal conflicts or challenges with other people, such as peers, friends, family members and romantic partners. The teens were then asked to perform a task that has been shown in previous studies to induce social stress – they had to prepare and deliver a three-minute speech before what they thought was an audience of peers watching via video link. Immediately after the stressful task, they again completed the social problem-solving task to see whether experiencing social stress led to declines in their problem-solving ability.

The researchers also followed the girls for nine months, checking in every three months, to ask them about the stressors they were experiencing in interpersonal domains, such as with peers, friends and family members, as well as about suicidal behaviors.

Overall, the researchers found that girls who showed greater declines in problem-solving effectiveness in the lab, and who also experienced higher levels of interpersonal stress over the nine-month follow-up period, were more likely to exhibit suicidal behavior over the nine-month follow-up period.

“Importantly, problem-solving deficits under distress may increase risk for future suicidal
behavior only in combination with greater cumulative interpersonal stress in real life,” Pollak said. “Risk for suicidal behavior was higher among adolescents who showed greater declines in
effectiveness and who experienced high levels of interpersonal stress over nine-month follow-up, consistent with robust evidence for links between interpersonal life stress and suicidal behavior.”

ARTICLE: “Social Problem-Solving and Suicidal Behavior in Adolescent Girls: A Prospective Examination of Proximal and Distal Social Stress-Related Risk Factors,” by Olivia Pollak, MA, and Mitchell J. Prinstein, PhD, The University of North Carolina Chapel Hill; Shayna M. Cheek, PhD, Duke University; Karen D. Rudolph, PhD, University of Illinois Urbana-Champaign; Paul D. Hastings, PhD, University of California Davis; and Matthew K. Nock, PhD, Harvard University. Journal of Psychopathology and Clinical Science, published online May 25, 2023.

CONTACT: Olivia Pollak can be reached at ohpollak@email.unc.edu.

Fewer suicides among boys in regions with more bipolar diagnoses

Peer-Reviewed Publication

KAROLINSKA INSTITUTE

Bipolar disorder underlies roughly five percent of all suicides among young people. Previous studies also show that there is often a long delay between the onset of bipolarism and its correct diagnosis and treatment. Researchers at Karolinska Institutet now show that fewer boys commit suicide in Swedish regions where bipolar diagnoses are more common. The study, which is published in JAMA Psychiatry, could contribute to more proactive care for reducing the number of suicides.

“Bipolar disorder is often more distressing for people who develop it early in life and is one of the psychiatric disorders most associated with suicide risk,” says the study’s first author Peter Andersson, doctoral student at the Department of Clinical Neuroscience, Karolinska Institutet.

The disease usually manifests between the ages of 12 and 25 and is characterised by recurring episodes of mania and depression. Previous studies have shown that it can take up to six years for bipolar disorder to be diagnosed and treated, and comparisons with data from previous large-scale prevalence studies, indicate that under-diagnosis in Sweden is high among individuals aged 15-19.

Large regional differences

Using registry data from all of Sweden's 21 regions between 2008 and 2021, researchers from Karolinska Institutet examined regional differences in the number of people aged 15 to 19 diagnosed with bipolar disorder and the correlation between population size-adjusted diagnoses and confirmed suicides for males and females.

The results, which included 585 confirmed suicides in this age group, showed large regional differences in the percentage of young people diagnosed with bipolar disorder.

The study also found an association between a higher number of population-adjusted bipolar diagnoses and lower suicide rates among boys.

“Our results show that the suicide rate among boys is almost five per cent lower in the regions that make most bipolar diagnoses than in those that make the fewest,” says corresponding author Adrian E. Desai Boström, resident in child and adolescent psychiatry in Stockholm and postdoc researcher at the Department of Clinical Neuroscience, Karolinska Institutet. “This suggests that suicide among teenage boys in Sweden could be reduced with improvements to the diagnosis of bipolarism and its treatment.”

Sometimes wrongly diagnosed

The study's complementary analyses showed that the relationship between the number of bipolar diagnoses and lower suicide rates among boys was independent of the number of care episodes and diagnoses of depression or schizophrenia.

Although the number of prescriptions for the mood stabilizer lithium paradoxically decreased when more bipolar diagnoses were established, increases were observed in the number of boys who received lithium at least once. The researchers hypothesised that this could be interpreted as indicating that boys with bipolar disorder often begin lithium therapy but then switch to other mood-stabilising drugs for various reasons.

The researchers also see a possible risk that misguided treatment could lead to a higher suicide rate rather than no treatment at all.

"For example, some young people might be passed on by the psychiatric services to the social services under the provisions of laws relating to the care of the young and people with functional impairments," says Andersson. "We also know that bipolar patients are sometimes wrongly diagnosed with 'normal' depression."

In a recently published study in Nature Communications the researchers found large regional differences in the use of advanced psychiatric treatments in child and adolescent psychiatry in Sweden. They now plan to further investigate the effects of advanced psychiatric treatments on young people with bipolar disorder and other serious psychiatric conditions.

The study was a collaboration among researchers at Karolinska Institutet, Uppsala University, Umeå University, Lund University, Region Halland, and Region Stockholm in Sweden and was financed by the Swedish Research Council. Co-author Jussi Jokinen has been part of an advisory committee for the pharmaceutical company Janssen on the use of esketamine in the treatment of depression. No other conflicts of interest have been reported.

Publication: ”Association of Bipolar Disorder Diagnosis With Suicide Mortality Rates in Adolescents in Sweden”. Peter Andersson, Jussi Jokinen, Håkan Jarbin, Johan Lundberg, Adrian E. Desai Boström. JAMA Psychiatry, online 24 May 2023, doi: 10.1001/jamapsychiatry.2023.1390.

Gender-affirming hormone therapy reduces psychological distress in transgender people: systematic review


Gender-affirming hormone therapy reduces depressive symptoms and psychological distress in transgender people, according to a groundbreaking systematic review of research in the field

Peer-Reviewed Publication

UNIVERSITY OF EXETER

Gender-affirming hormone therapy reduces depressive symptoms and psychological distress in transgender people, according to a groundbreaking systematic review of research in the field.

The new study, led by Amsterdam University Medical Centers and the University of Exeter, reviewed 46 relevant journal articles. The research reviewed included a mix of studies based on interviews, comparisons of people who had taken hormones and those who had not, and analysis of data over time from groups of people who were undertaking hormone therapy. Participants involved in the studies came from a broad range of age groups, but the review focused only on gender-affirming hormone therapy via cross-sex hormones, not the possible effects of puberty blockers or other interventions.

The studies varied in size and quality, often with a substantial risk of bias, and focused on a range of different groups, across varying social demographics. The new review, funded by the European Research Council and published in Nature Human Behaviour, aimed to analyse their results to draw out common findings and identify research gaps.

Gender-affirming hormone therapy is the most common form of medical intervention used by transgender people. It changes a person’s physical appearance to better align with their gender identity. Once they have started the therapy, transgender people are usually instructed to continue it for the rest of their lives.

Previous evidence has shown that transgender people struggle disproportionately with their own mental health and in their social lives. As a result, there is a need to better understand the psychological consequences of hormones, as some previous research has suggested they may have a biological effect on aspects of psychosocial functioning; such as wellbeing, self-control and trust. However, research findings have often been mixed or inconclusive, and up until now there has been no systematic research into these effects.

This new research looked at the key areas of psychosocial functioning – how people function across areas such as well-being, self-control and trust.  These areas shape how people relate to themselves as well as others, and better functioning  has been shown to lead to healthier experiences in relationships and decrease social isolation and loneliness.

Dr David Matthew Doyle from Amsterdam University Medical Centers is leading this research. He said: “This work is vital in trying to achieve health equity for transgender people, who have disproportionately high levels of depression and anxiety as well as other mental health conditions, and seek out hormone therapy to become more comfortable in their bodies and often also in their social lives. Overall, we found that the quality of research in this important field, although improving, is generally limited, and studies have largely focused on medical effects of hormones, with little attention given to the psychosocial impacts that are crucial to sense of self and maintaining relationships. The most consistent finding across all studies in our review is that gender-affirming hormone therapy reduces depressive symptoms and psychological distress in transgender people, but we don’t know if this is caused by the biological effects of hormones or other related factors. 

“While there is also some evidence of improvements in quality of life and a positive change in interpersonal functioning, the findings were more inconsistent. That’s why further high-quality research is crucial, and we have already begun robust studies to isolate the biological effects of hormones from other psychological and sociocultural mechanisms.” 

The study found inconsistent or ambiguous results across other areas, with some evidence that there may be a difference between masculising and feminising hormone treatment in some areas, that would warrant further investigation.

Co-author Professor Manuela Barreto, of the University of Exeter, said: “As NHS waiting lists for hormone therapy clinics in the UK are extremely long, we need to produce a better and more robust evidence base with urgency, to ensure we are providing the best possible futures for transgender people. Acknowledging and attending to the psychosocial effects of interventions such as hormone therapy can prevent the need to access mental health services, which are also overwhelmed. We need better designed research that involves transgender people from the start, so we can understand both the biological and psychosocial aspects of therapy and improve care.” 

The paper is entitled ‘'A Systematic Review of Psychosocial Functioning Changes after Gender-Affirming Hormone Therapy Among Transgender People”, and is published in Nature Human Behaviour