Melatonin secretion linked to ADHD in children

A groundbreaking study conducted by researchers from Hamamatsu University School of Medicine, in collaboration with several international institutions, has revealed a crucial connection between melatonin secretion and the severity of ADHD (attention deficit hyperactivity disorder) symptoms in children. The findings, published in Psychiatry Research Communications, suggest that genetic variations affecting melatonin production may significantly contribute to the development and worsening of ADHD symptoms.

ADHD is a prevalent neurodevelopmental disorder affecting approximately 5% of children worldwide. Persistent patterns of inattention, hyperactivity, and impulsivity characterize it. While it has long been known that children with ADHD often struggle with sleep disorders, the precise relationship between sleep and ADHD symptoms has remained unclear—until now.

The study, using data from the Hamamatsu Birth Cohort for Mothers and Children (HBC Study), which tracks children’s development from birth, revealed that children with genetic traits that reduce melatonin secretion at night exhibited more severe ADHD symptoms at age 8 to 9.

“Our findings indicate that disruptions in melatonin secretion may contribute to the difficulties children with ADHD face in maintaining regular sleep patterns,” said Associate Professor Nagahide Takahashi, the lead author and a clinical expert on ADHD. “This could potentially worsen their ADHD symptoms, creating a vicious cycle that can be challenging to break.”

This research has significant implications as it highlights the importance of good sleep habits for children with ADHD. These include consistent bedtime routines, limiting screen time before sleep, and increasing exposure to natural light during the day. Additionally, the study indicates that taking melatonin supplements could help manage ADHD symptoms, but more research is required to confirm its long-term effectiveness.

“This study represents a major advancement in comprehending the intricate relationship between sleep and neurodevelopmental disorders. As researchers delve deeper into these connections, parents and healthcare providers could discover fresh strategies to assist children with ADHD in better managing their symptoms.”

Young adults let down by ‘postcode lottery’ for ADHD treatment

A national survey conducted as part of University of Exeter research has found huge variation in treatment for ADHD, highlighting the struggle many young adults face once they turn 18.
A national survey conducted as part of University of Exeter research has found significant variation in the treatment of ADHD, highlighting the challenges many young adults face after turning 18.

A national survey conducted as part of University of Exeter research has found significant variation in the treatment of ADHD, underscoring the challenges many young adults encounter once they reach 18.

Researchers have cautioned that the current system is failing many young adults as they transition from children’s to adult services. They suddenly find themselves unable to access treatment because services are not effectively linked up.

Over 750 individuals from around the country, including commissioners, healthcare professionals in primary care, and individuals with lived experience of ADHD, participated in the MAP National Survey. The survey sheds light on the challenges that GPs encounter when prescribing ADHD medication.

ADHD affects up to seven per cent of children and up to five per cent of adults. Symptoms include patterns of hyperactivity, impulsivity, and/or inattention, which interfere with daily functioning. Failing to treat ADHD and gaps in treatment, especially as young people grow into adults, can have severe impacts on patients and families. This increases the risk of mental health crises and difficulties with work, education, and relationships, adding pressure on health services.

The survey revealed differences in “shared care” agreements between GPs, mental health specialists, and patients, which are required for GPs to prescribe ADHD medications. This issue was especially problematic when young people transitioned to adult mental health services, indicating that the current system fails adolescents at a crucial stage in their lives. Current NICE guidelines advise GPs to prescribe medication for adult ADHD patients under a shared care agreement with adult mental health services.

The survey revealed that setting up agreements for prescribing ADHD medication may not always be easy. Evidence suggests that GPs may not feel well-supported to prescribe in this manner. If the appropriate support is not in place, some GPs may choose not to prescribe ADHD medication due to concerns about insurance and liability. This can be especially problematic for patients with a private ADHD diagnosis, leaving GPs unable to provide effective care and many patients without access to the medication they need.

Moreover, over 40 per cent of survey respondents reported waiting for two years or more for an appointment with adult mental health services. This places the responsibility of providing care on GPs without the necessary support to offer the best care for their patients during a critical time in their lives. This can involve restricting access to medication, even if the treatment was successful during childhood. Furthermore, access to treatment for ADHD is particularly challenging for certain underserved groups, such as young women and young people leaving care, leading to increased health disparities.

The survey results come just as NHS England has announced the establishment of a task force and a major review of ADHD services. As NHS England states, “People with ADHD deserve a caring and effective service from the NHS and wider society. We know there is more to do, but we do not underestimate the complexity and challenges in realizing this ambition.”

Dr Anna Price, Senior Research Fellow at the University of Exeter, emphasized the importance of a coordinated approach to address the disparities that create a postcode lottery for patients seeking treatment for ADHD. She stressed the need for improved support for GPs and other primary care professionals so they can offer shared care prescribing of ADHD medication in accordance with UK guidelines.

“We know that failing to treat ADHD can have a huge impact. Turning 18 is often a crucial and sensitive time in life, and our research shows that lack of treatment at this time can be particularly damaging for young people who are learning to self-manage their health needs, at the same time as perhaps sitting important exams, leaving home for the first time, and embarking on careers or university study.”

“We welcome the establishment of the NHS England taskforce, which is a much-needed step towards better outcomes for people with ADHD.”

The University of Exeter experts have recently established a Science of ADHD and Neurodevelopment collaboration. They are working with experienced experts and healthcare providers to develop solutions, such as curated digital interventions and standardized shared care agreement templates, to help people with ADHD thrive.

ADHD medications hit by supply shortages essential to improve quality of life

How to Remember To Take Your Meds: Never Forget Again! #Shorts​

Research conducted by the University of Southampton indicates that while medications are important for improving the quality of life for individuals with ADHD, the authors suggest that additional support is necessary alongside medications.

The findings, published online on 8 August 2024 in The Journal of the American Academy of Child and Adolescent Psychiatry, highlight the potential impact of shortages of certain ADHD medications.

“It is deeply concerning to think of the impact on individuals who cannot access their medication due to supply shortages or for other reasons,” Professor Samuele Cortese from the University of Southampton, the senior author on the paper, expressed.

Attention-Deficit/Hyperactivity Disorder (ADHD) is characterized by symptoms of inattention, hyperactivity, and impulsivity, which can have negative effects on various aspects of life such as social interactions, work, education, and daily tasks.

“People with ADHD report lower quality of life in areas such as work productivity, social and family life, and self-esteem, compared to their neurotypical peers,” stated Dr. Alessio Bellato, a lecturer in Psychology at the University of Southampton and the lead author of the paper.

“This study demonstrates that medications play a crucial role in enhancing the quality of life for individuals with the condition.”

The researchers conducted the first systematic review and meta-analysis to investigate the effects of stimulant (amphetamines and methylphenidate) and non-stimulant (atomoxetine) drugs for ADHD on the quality of life.

They included 17 placebo-controlled trials, encompassing over five thousand participants in the analysis. Trials were drawn from the MED-ADHD dataset the largest dataset of trials of ADHD medication, set up by Professor Cortese and international collaborators.

Both stimulant and non-stimulant drugs were significantly more effective in improving quality of life than placebo. However, the study also found that while the effects of these drugs on the core ADHD symptoms are usually medium to high, the impact on quality of life was in the small-to-medium range.

Professor David Coghill from the University of Melbourne, a co-author on the paper, added: “This disparity shows that, for most people, targeting core symptoms through medication alone is unlikely to counter the impact of ADHD on quality of life. More research is needed to find out whether combining medication with other approaches can lead to further improvements in well-being and what types of support might be most effective in situations where medication is not available.”

“More research is also needed to better understand how these medications affect quality of life,” says Dr Bellato. “It could be that reducing the core symptoms of ADHD (inattention, hyperactivity, impulsivity) leads to more efficient task management and this results in better academic and professional outcomes. Medications may also help stabilise emotional dysregulation, promoting emotional well-being and higher self-esteem.”

“Considering that ADHD medication might not be acceptable, effective, or well tolerated for everyone with ADHD, more research is needed to evaluate alternative approaches, including psychological interventions.”

“New Study: Link Found Between Neighborhood Conditions and ADHD Signs in Autistic Children”

Study finds poverty, lack of services may play a role
A study suggests that poverty and the lack of services may have an impact.

Children with autism who were born in underprivileged neighbourhoods are more likely to exhibit more significant symptoms of attention deficit hyperactivity disorder (ADHD) than those born in more affluent communities, according to a new study led by researchers at the UC Davis MIND Institute.

This groundbreaking study is the first of its kind to explore the relationship between neighbourhood factors and ADHD in both autistic and non-autistic children. The research offers new perspectives on mental health conditions and could play a key role in shaping public policy changes to enhance health equity.

“We discovered that certain neighbourhood factors are closely linked to ADHD symptoms in autistic children”” stated Catrina Club, the primary author of the study. Calub is a postdoctoral researcher working in the laboratory of Julie Schweitzer, who is a professor in the Department of Psychiatry and Behavioral Sciences and the MIND Institute.

“In our study, we found that this effect was only present in autistic children and not in typically developing kids or in kids with other developmental disabilities. It suggests that when autistic children live in neighbourhoods with fewer resources, they tend to exhibit more pronounced ADHD symptoms,” explained Club.

ADHD symptoms may include higher rates of inattention, hyperactivity, and impulsive behavior. It is associated with:

  • Challenges in school performance and relationships with friends
  • Lower self-esteem and greater risk for anxiety and depression
  • Higher potential for substance use disorders and accidents
  • Emotional dysregulation and conduct problems

Study expands findings from long-term research

The researchers utilized data from two studies: the long-running Childhood Autism Risks from Genetics and the Environment (CHARGE) study led by Irva Hertz-Picciotto at the MIND Institute and the ReCHARGE follow-up project.

The research team examined 246 children with autism, 85 with developmental delays but not autism, and 193 neurotypical children. They then used the Child Opportunity Index, which utilizes census data to analyze over 30 neighbourhood characteristics. These characteristics include socioeconomics, access to green spaces, single-parent households, and the presence of early childhood education centres.

The index encompasses education, health and environment, and social and economic resources. Higher scores are linked to better childhood health. Of the three domains, the scores for education and social and economic resources were most strongly related to ADHD symptoms.

The analysis showed the Child Opportunity Index scores at birth were a strong predictor for ADHD symptoms in adolescence in autistic children but not in the other groups. Calub noted that the finding was unexpected.

“These results are quite concerning,” Calub said. “Those with both autism and ADHD are already more likely to have additional challenges—behaviorally, cognitively, emotionally, and socially. Being born in a low-income neighbourhood puts them at an even greater disadvantage. This adds to the evidence that more resources are needed for underserved areas and specifically for those who have conditions like autism.”

The need for a larger, more diverse sample

Calub pointed out that more research is needed to determine if the obtained results are conclusive.

apply to a larger group.

“It will be important for future studies to be larger and more diverse. This will help us learn whether neighbourhood conditions might also influence ADHD symptoms in other groups, such as youth without autism, or in Black, Asian, and Native American individuals, who were underrepresented in our sample,” Caleb added.

These findings also provide insights on how to target preventive strategies to reduce the risk of increased ADHD symptoms, as noted by Schweitzer, who was also a co-author on the study.

“ADHD is highly prevalent in the general population and is common in autistic youth. If we can find ways to increase resources in these neighborhoods, we have the potential to improve academic, social, mental, and physical health outcomes, particularly for autistic youth, and also decrease long-term economic costs,” Schweitzer explained.

Calub and Schweizer assert the study’s findings should motivate policymakers to allocate more resources for underserved communities. Furthermore, they suggest that incorporating the Child Opportunity Index and other neighborhood metrics could yield fresh insights for future studies to guide policy.

Neurodivergent children are twice as likely to experience chronic disabling fatigue in adolescence

A groundbreaking study has found that children who exhibit neurodivergent traits, such as those associated with autism and ADHD, are twice as likely to experience chronic disabling fatigue by age 18.
A groundbreaking study has found that children who exhibit neurodivergent traits, such as those associated with autism and ADHD, are twice as likely to experience chronic disabling fatigue by age 18.

The research, led by Dr Lisa Quadt, Research Fellow in Psychiatry at BSMS and Dr Jessica Eccles, Reader in Brain-Body Medicine at BSMS, highlights a significant link between neurodivergence and chronic fatigue. The study found that increased inflammation in childhood, often resulting from heightened stress levels, may be a contributing factor. This supports previous findings that suggest chronic fatigue can be rooted in inflammatory processes.

“These results show the importance of trans-diagnostic screening for children and the need for better support for neurodivergent children” says Dr Quadt. “Children with neurodivergent traits, diagnosed or not, often experience heightened stress, which is likely one reason for their increased inflammatory levels. Our study indicates that this may be a risk factor for developing chronic disabling fatigue, which dramatically decreases quality of life.”

While this research emphasises the higher risk of chronic fatigue among neurodivergent populations, it does not imply that all individuals with chronic fatigue are neurodivergent. The causes and mechanisms of chronic fatigue are multifaceted and intricate, necessitating a comprehensive approach by healthcare providers to identify contributing factors and tailor support and treatment accordingly.

The study’s findings advocate for better screening practices and enhanced support systems for neurodivergent children to mitigate the risk of chronic fatigue and improve overall quality of life.