Publications by authors named "Richard D Hayes"

The earthball , an ectomycorrhizal basidiomycete belonging to the Sclerodermataceae family, serves as a significant mutualistic tree symbiont globally. Originally, two genetically sequenced strains of this genus were obtained from fruiting bodies collected under chestnut trees (). These strains were utilized to establish ectomycorrhizal roots of chestnut seedlings.

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Background: The Covid-19 pandemic showed higher infection, severity and death rates among those living in poorer socioeconomic conditions. We use syndemic theory to guide the analyses to investigate the impact of social adversity and multiple long-term conditions (MLTC) on Covid-19 mortality.

Methods: The study sample comprised 154 725 UK Biobank participants.

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Microplastics present myriad ecological and human health risks including serving as a vector for pathogens in human and animal food chains. However, the specific mechanisms by which pathogenic fungi colonize these microplastics have yet to be explored. In this work, we examine the opportunistic fungal pathogen, and other common soil and marine , which we found bind microplastics tightly.

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  • * Researchers analyzed data from a population-based cohort of over 4,000 older adults with SMI and found that their risk of hospital admission for physical illnesses was significantly higher compared to the general population.
  • * The results indicated that elderly individuals with SMI not only faced higher rates of hospitalization but also longer hospital stays, particularly for digestive system and urinary conditions.
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  • * Data were analyzed from nearly 15,500 patients, revealing that around 15.3% had OCS without OCD, and 16.8% were diagnosed with OCD.
  • * Results indicated that those with comorbid OCS/OCD faced greater challenges in relationships, daily activities, and living conditions, emphasizing the need for proper identification and treatment for these symptoms in this demographic.
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The North Temperate Lakes Long-Term Ecological Research (NTL-LTER) program has been extensively used to improve understanding of how aquatic ecosystems respond to environmental stressors, climate fluctuations, and human activities. Here, we report on the metagenomes of samples collected between 2000 and 2019 from Lake Mendota, a freshwater eutrophic lake within the NTL-LTER site. We utilized the distributed metagenome assembler MetaHipMer to coassemble over 10 terabases (Tbp) of data from 471 individual Illumina-sequenced metagenomes.

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Schizophyllum commune is a mushroom-forming fungus notable for its distinctive fruiting bodies with split gills. It is used as a model organism to study mushroom development, lignocellulose degradation and mating type loci. It is a hypervariable species with considerable genetic and phenotypic diversity between the strains.

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  • Zygnematophyceae, a group of filamentous algae, are closely related to land plants, and this study sequenced four of their genomes, creating detailed chromosome-scale assemblies for three strains of Zygnema circumcarinatum.
  • The research identified key traits in their common ancestor with land plants that may have enabled plants to adapt to life on land, including expanded genes for signaling, environmental responses, and multicellular growth.
  • Additionally, the study revealed shared enzymes for cell wall synthesis between Zygnematophyceae and land plants, suggesting a genetic framework that integrates environmental responses with developmental growth over 600 million years of evolution.
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Severity of personality disorder is an important determinant of future health. However, this key prognostic variable is not captured in routine clinical practice. Using a large clinical data-set, we explored the predictive validity of items from the Health of Nation Outcome Scales (HoNOS) as potential indicators of personality disorder severity.

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The species complex (FOSC) includes both plant and human pathogens that cause devastating plant vascular wilt diseases and threaten public health. Each genome comprises core chromosomes (CCs) for housekeeping functions and accessory chromosomes (ACs) that contribute to host-specific adaptation. This study inspects global transcription factor profiles (TFomes) and their potential roles in coordinating CC and AC functions to accomplish host-specific interactions.

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The species complex (FOSC) includes both plant and human pathogens that cause devastating plant vascular wilt diseases and threaten public health. Each genome comprises core chromosomes (CCs) for housekeeping functions and accessory chromosomes (ACs) that contribute to host-specific adaptation. This study inspected global transcription factor profiles (TFomes) and their potential roles in coordinating CCs and ACs functions to accomplish host-specific pathogenicity.

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The filamentous and unicellular algae of the class Zygnematophyceae are the closest algal relatives of land plants. Inferring the properties of the last common ancestor shared by these algae and land plants allows us to identify decisive traits that enabled the conquest of land by plants. We sequenced four genomes of filamentous Zygnematophyceae (three strains of and one strain of ) and generated chromosome-scale assemblies for all strains of the emerging model system .

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Purpose: Accidents are the most common cause of death among UK military personnel. It is a common misconception in the general public that accidental injuries are always the result of random events, however research suggests that mental health problems and the increased levels of risky behaviour in military personnel may play a role. The objective of this study was to further our understanding of injuries and deaths not related to deployment by examining the associations of mental health, alcohol misuse and smoking with inpatient admission to hospital for accidents and injuries, and attendance to accident and emergency (A&E) departments.

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Background: Studies show ethnic inequalities in rates of involuntary admission and types of clinical care (such as psychological therapies). However, few studies have investigated if there is a relationship between clinical care practices and ethnic inequalities in involuntary admission.

Aims: This study investigated the impact of ethnicity and clinical care on involuntary admission and the potential mediation effects of prior clinical care.

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  • There is variability in treatment-resistant schizophrenia (TRS), with some individuals never responding to treatment and others becoming resistant after an initial response, suggesting different underlying causes.
  • The study aimed to identify sociodemographic and clinical factors related to the early onset of TRS using a retrospective analysis of a cohort from the South London and Maudsley.
  • Results indicated a median treatment time to TRS of about 3 years and 8 months, with more severe initial positive symptoms leading to earlier TRS onset, while long-acting injectable antipsychotics were linked to a later onset.
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  • The study investigates the prevalence of obsessive-compulsive symptoms (OCS) and obsessive-compulsive disorder (OCD) in patients diagnosed with schizophrenia, schizoaffective disorder, or bipolar disorder from clinical records between 2007 and 2015.
  • Out of 22,551 cases analyzed, 5,179 patients (24.0%) showed OCS and 2,574 (11.9%) had comorbid OCD, indicating that these symptoms are common yet often overlooked in this patient group.
  • The presence of OCS/OCD was linked to more severe psychiatric issues, including aggressive behavior, cognitive difficulties, hallucinations, delusions, and physical problems, suggesting a need for better recognition
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  • The study aimed to create a predictive tool for treatment-resistant schizophrenia (TRS) using data from mental health services across four London boroughs, analyzing a large diverse group of patients.
  • Data from clinical records of 1,515 patients revealed that 17% developed TRS, with the Cox LASSO survival model producing a Harrel's C index of 0.60, indicating a moderate predictive ability.
  • Key predictors of TRS included more inpatient days, increased face-to-face clinical contact prior to treatment, minor cognitive issues, and younger age at the first antipsychotic prescription; however, routine data alone may not be enough for accurate prediction.
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Clozapine is the only licenced medication for treating treatment-resistant schizophrenia. Previous studies have suggested unequal rates of clozapine treatment by ethnicity among individuals with schizophrenia-spectrum disorders. One previous review has investigated this topic but was restricted to studies from the USA.

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Purpose: Clozapine is the most effective intervention for treatment-resistant schizophrenia (TRS). Several studies report ethnic disparities in clozapine treatment. However, few studies restrict analyses to TRS cohorts alone or address confounding by benign ethnic neutropenia.

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Background: A proportion of people with treatment-resistant schizophrenia fail to show improvement on clozapine treatment. Knowledge of the sociodemographic and clinical factors predicting clozapine response may be useful in developing personalised approaches to treatment.

Methods: This retrospective cohort study used data from the electronic health records of the South London and Maudsley (SLaM) hospital between 2007 and 2011.

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Clozapine, an antipsychotic, is associated with increased susceptibility to infection with COVID-19, compared to other antipsychotics. Here, we investigate associations between clozapine treatment and increased risk of adverse outcomes of COVID-19, namely COVID-related hospitalisation, intensive care treatment, and death, amongst patients taking antipsychotics with schizophrenia-spectrum disorders. Using the clinical records of South London and Maudsley NHS Foundation Trust, we identified 157 individuals who had an ICD-10 diagnosis of schizophrenia-spectrum disorders, were taking antipsychotics (clozapine or other antipsychotics) at the time of COVID-19 pandemic in the UK and had a laboratory-confirmed COVID-19 infection.

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