Publications by authors named "Bergen N"

Background: Metabolism is error prone. For instance, the reduced forms of the central metabolic cofactors nicotinamide adenine dinucleotide (NADH) and nicotinamide adenine dinucleotide phosphate (NADPH), can be converted into redox-inactive products, NADHX and NADPHX, through enzymatically catalyzed or spontaneous hydration. The metabolite repair enzymes NAXD and NAXE convert these damaged compounds back to the functional NAD(P)H cofactors.

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A rare neurodevelopmental disorder has been linked to a well-conserved splice site variant in the TRAPPC4 gene (c.454 + 3A > G), which causes mis-splicing of TRAPPC4 transcripts and reduced levels of TRAPPC4 protein. Patients present with severe progressive neurological symptoms including seizures, microcephaly, intellectual disability and facial dysmorphism.

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The TRAPP (TRAnsport Protein Particle) protein complex is a multi-subunit complex involved in vesicular transport between intracellular compartments. The TRAPP complex plays an important role in endoplasmic reticulum-to-Golgi and Golgi-to-plasma membrane transport, as well as autophagy. TRAPP complexes comprise a core complex, TRAPPI, and the association of peripheral protein subunits to make two complexes, known as TRAPPII and TRAPPIII, which act as Guanine Nucleotide Exchange Factors (GEFs) of Rab11 and Rab1, respectively.

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Article Synopsis
  • Pediatric genetic epilepsies, including CDKL5 Deficiency Disorder (CDD), are severe and challenging, with many young patients experiencing frequent seizures that impede development and quality of life.
  • Current antiseizure medications often fail, prompting exploration into the therapeutic effects of cannabinoids like cannabidiol (CBD) and Δ9-tetrahydrocannabinol (THC), particularly for drug-resistant conditions.
  • Despite promising results for other genetic epilepsies, research specifically targeting CDD is scarce and primarily anecdotal; using advanced models like patient-derived neurons and brain organoids could provide better insights into cannabinoid efficacy and mechanisms for potential treatment options.
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The year 2024 marks the 50th anniversary of the World Health Organization (WHO) Expanded Program on Immunization (EPI) [...

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Immunization through vaccines among children has contributed to improved childhood survival and health outcomes globally. However, vaccine coverage among children is unevenly distributed across settings and populations. The measurement of inequalities is essential for understanding gaps in vaccine coverage affecting certain sub-populations and monitoring progress towards achieving equity.

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CDKL5 Deficiency Disorder (CDD) is a debilitating epileptic encephalopathy disorder affecting young children with no effective treatments. CDD is caused by pathogenic variants in Cyclin-Dependent Kinase-Like 5 (CDKL5), a protein kinase that regulates key phosphorylation events in neurons. For therapeutic intervention, it is essential to understand molecular pathways and phosphorylation targets of CDKL5.

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The development of stem cell-derived tissue constructs (SCTCs) for clinical applications, including regenerative medicine, drug and disease screening offers significant hope for detecting and treating intractable disorders. SCTCs display a variety of biomarkers that can be used to understand biological mechanisms, assess drug interactions, and predict disease. Although SCTCs can be derived from patients and share the same genetic make-up, they are nevertheless distinct from human patients in many significant ways, which can undermine the clinical significance of measurements in SCTCs.

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  • Critical genes like LMX1B are crucial for embryonic development, specifically influencing the growth of limbs, eyes, and kidneys; mutations can lead to Nail-Patella syndrome.
  • While most known genetic variants are found in the LMX1B coding sequence, about 5%-10% of individuals with Nail-Patella syndrome do not show any identifiable mutations in this area.
  • This study highlights a family with four members affected by a de novo deletion in an upstream region that influences the LMX1B gene, showing symptoms primarily in nails and limbs, suggesting a milder form of the syndrome compared to the classic presentation that also includes eye and kidney issues.
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  • - The Acute Care Genomics program in Australia offered whole-genome sequencing to 290 families of critically ill children over 2 years, achieving an average result time of 2.9 days and a diagnostic yield of 47%.
  • - Further analysis and advanced sequencing methods led to 19 additional diagnoses, increasing the overall diagnostic yield to 54%, with various genetic issues identified.
  • - Among the diagnosed patients, 77% experienced changes in critical care management, significantly influencing treatment options, surgeries, and palliative care in 60% of cases, highlighting the effectiveness of integrating advanced genomic approaches into regular diagnostic practices.
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Immunization, hailed as one of the most successful public health interventions in the world, has contributed to major advancements in health as well as social and economic development [...

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Substantial progress in maternal and neonatal tetanus elimination has been made in the past 40 years, with dramatic reductions in neonatal tetanus incidence and mortality. However, twelve countries have still not achieved maternal and neonatal tetanus elimination, and many countries that have achieved elimination do not meet key sustainability thresholds to ensure long-lasting elimination. As maternal and neonatal tetanus is a vaccine-preventable disease (with coverage of the infant conferred by maternal immunization during and prior to pregnancy), maternal tetanus immunization coverage is a key metric for monitoring progress towards, equity in, and sustainability of tetanus elimination.

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Since December 2020, COVID-19 vaccines have become increasingly available to populations around the globe. A growing body of research has characterised inequalities in COVID-19 vaccination coverage. This scoping review aims to locate, select and assess research articles that report on within-country inequalities in COVID-19 vaccination coverage, and to provide a preliminary overview of inequality trends for selected dimensions of inequality.

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As part of its commitment to advance health equity, the World Health Organization (WHO) has a developed area of work to promote and strengthen health inequality monitoring. This includes an emphasis on the collection, analysis and use of disaggregated health data, which are central to evidence-informed decision making. The aim of this paper is to review WHO's work on health inequality monitoring, namely the 2022-27 Inequality monitoring and analysis strategy and corresponding activities, resources and tools.

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We have previously reported that pathogenic variants in a key metabolite repair enzyme NAXD cause a lethal neurodegenerative condition triggered by episodes of fever in young children. However, the clinical and genetic spectrum of NAXD deficiency is broadening as our understanding of the disease expands and as more cases are identified. Here, we report the oldest known individual succumbing to NAXD-related neurometabolic crisis, at 32 years of age.

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Background And Objectives: The term autosomal recessive cerebellar ataxia (ARCA) encompasses a diverse group of heterogeneous degenerative disorders of the cerebellum. Spinocerebellar ataxia autosomal recessive 10 (SCAR10) is a distinct classification of cerebellar ataxia caused by variants in the gene. Little is known about the molecular role of ANO10 or its role in disease.

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Background: COVID-19 vaccine coverage and experiences of structural and attitudinal barriers to vaccination vary across populations. Education-related inequality in COVID-19 vaccine coverage and barriers within and between countries can provide insight into the hypothesised role of education as a correlate of vaccine access and acceptability. We aimed to characterise patterns of within-country education-related inequality in COVID-19 vaccine indicators across 90 countries.

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Introduction: In climbing, research is needed to guide clinical and training advice regarding strength differences between hands. The objectives of this study were to establish test-retest reliability of a field-based apparatus measuring sport-specific unilateral isometric hand strength and to investigate whether these measures detect between-hand differences in climbers with and without a history of unilateral hand injury.

Methods: A reliability and case-control injury study was carried out.

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Background: The coronavirus pandemic has exposed existing social inequalities in relation to disease preventive behaviors, risk of exposure, testing and healthcare access, and consequences as a result of illness and containment measures across different population groups. However, due to a lack of data, to date there has been limited evidence of the extent of such within-country inequalities globally.

Methods: We examined education-related inequalities in four COVID-19 prevention and testing indicators within 90 countries, using data from the University of Maryland Social Data Science Center Global COVID-19 Trends and Impact Survey, in partnership with Facebook, over the period 1 June 2021 to 31 December 2021.

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Cancer pagurus is highly susceptible to shell disease syndrome. However, little is known about concomitant changes in the epibacterial community. We compared the bacterial communities of black spot affected and nonaffected areas of the carapace by amplicon sequencing of 16S rRNA genes and 16S rRNA.

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