Publications by authors named "Petersen L"

Objective: Eating disorders (EDs) are serious psychiatric disorders with an estimated 3.3 million healthy life-years lost worldwide yearly. Understanding the course of illness, diagnostic transitions and remission, and their associated genetic correlates could inform both ED etiology and treatment.

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Advanced genome engineering enables precise and customizable modifications of bacterial species, and toolsets that exhibit broad-host compatibility are particularly valued owing to their portability. Tn5 transposon vectors have been widely used to establish random integrations of desired DNA sequences into bacterial genomes. However, the iteration of the procedure remains challenging because of the limited availability and reusability of selection markers.

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Background: More research is needed to understand psychopathology among parents of children with mental disorders in the years before and after the child is diagnosed. Here, we estimated the risk of mental disorders and psychotropic medication use in parents of children with versus without mental disorders and the temporal associations between child and parental psychopathology.

Methods: We conducted a population-based matched cohort study using Danish register data.

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Introduction: Diagnostic work-up of older women with a positive cervical cancer screening test is often challenging due to incomplete visualization of the transformation zone. To reduce the risk of missing disease, a diagnostic cervical excision may be performed. However, little is known on treatment efficacy and post-treatment surveillance for older women.

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Purpose: Previous in vitro studies on porcine retinal arterioles have shown that the frequency and amplitude of retinal vasomotion can be affected by hypoxia and nitric oxide (NO). However, it is unknown whether these effects can be reproduced in humans in vivo.

Methods: Video recordings of retinal arterioles from 40 healthy subjects were studied before and during breathing of a hypoxic gas mixture consisting of 12.

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Importance: Early administration of supplemental oxygen for all severely injured trauma patients is recommended, but liberal oxygen treatment has been associated with increased risk of death and respiratory complications.

Objective: To determine whether an early 8-hour restrictive oxygen strategy compared with a liberal oxygen strategy in adult trauma patients would reduce death and/or major respiratory complications.

Design, Setting, And Participants: This randomized controlled trial enrolled adult trauma patients transferred directly to hospitals, triggering a full trauma team activation with an anticipated hospital stay of a minimum of 24 hours from December 7, 2021, to September 12, 2023.

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Background: The guidelines for Advanced Life Support issued by the European Resuscitation Council recommend considering drug delivery through intraosseous access if intravenous access to the vascular bed is not feasible or unsuccessful. Emergency prehospital intraosseous cannulation may theoretically lead to an increased risk of long-term complications such as osteomyelitis, osteonecrosis, or compartment syndrome. Such complications have previously been reported in case reports or small sample case series.

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  • The study investigated adverse neonatal outcomes in children born to mothers with different eating disorders, including anorexia nervosa (AN), bulimia nervosa (BN), and eating disorder not otherwise specified (EDNOS).
  • It analyzed data from over 1.5 million births in Denmark from 1991 to 2015, comparing outcomes based on whether the eating disorder diagnosis was recent (within 2 years of conception) or past (over 2 years before conception).
  • Findings showed that recent eating disorders, especially AN, were linked to higher risks of low birthweight, small-for-gestational-age, and preterm birth, emphasizing the need for better prevention and monitoring of eating disorders during pregnancy.
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It has been argued that domestication explains the ability of domestic animals to use human cues, but similar abilities exist in wild animals repeatedly exposed to humans. Little is known on the importance of the developmental stage of this exposure for developing such abilities. Orphancy and subsequent hand-rearing constitute a quasi-experimental situation for investigating this question.

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Eating disorders (EDs) commonly co-occur with other psychiatric and neurodevelopmental disorders including attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD); however, the pattern of family history and genetic overlap among them requires clarification. This study investigated the diagnostic, familial, and genetic associations of EDs with ADHD and ASD. The nationwide population-based cohort study included all individuals born in Denmark, 1981-2008, linked to their siblings and cousins.

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Aim: This qualitative study explored the experiences of patients, caregivers and healthcare professionals after replacing hospital consultations with a home service solution for patients treated for severe spasticity with intrathecal baclofen.

Method: Semi-structured interviews were conducted with six patients, six caregivers and six healthcare professionals. The data were analysed using interpretative phenomenological analysis.

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  • Patient heterogeneity in inflammatory bowel disease (IBD) complicates management, with sex, gender, and their intersection with other social identities influencing outcomes.
  • An interdisciplinary team explored how sex and gender impact IBD and highlighted the lack of comprehensive studies in this area.
  • Incorporating sex and gender considerations into IBD research practices could improve research quality and support personalized medicine, ultimately enhancing the quality of life for IBD patients.
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  • - The study examines how different levels of registered nurse (RN) staffing in Patient Aligned Care Teams (PACTs) within the Veterans Health Administration (VHA) affect patient access to healthcare services.
  • - It involved analyzing data from nearly 6,000 PACTs over a 24-month period, categorizing RN staffing stability into continuous churn, instability, vacancy, and stability, comparing their impact on various access measures.
  • - Findings indicated that RN churn significantly negatively impacted appointment availability, while staffing instability and vacancy did not show a notable effect; overall, adequate staffing and team stability were linked to better patient access.
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Background: Previous studies have indicated associations between maternal mental disorders and adverse birth outcomes; however, these studies mainly focus on certain types of mental disorders, rather than the whole spectrum.

Aims: We aimed to conduct a broad study examining all maternal mental disorder types and adverse neonatal outcomes which is needed to provide a more complete understanding of the associations.

Method: We included 1 132 757 liveborn singletons born between 1997 and 2015 in Denmark.

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Background: The purpose of this study was to examine the impact of breast cancer therapy on biological aging as measured by expression of genes for cellular senescence (p16INK4a, SenMayo), DNA damage response, and proinflammatory senescence-associated secretory phenotype.

Methods: This longitudinal, observational study evaluated women diagnosed with breast cancer (stage 0-III) prior to radiation therapy (RT) and/or chemotherapy (CT) and at repeated visits out to 2 years. Peripheral blood mononuclear cell gene expression was assessed using RNA sequencing on quality-verified RNA.

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  • The study aimed to characterize women living with HIV in Belgium and compare them with men, analyzing factors such as hypertension and virologic suppression levels.
  • Data from 2,797 women and 1,094 women for exploratory analysis revealed that the majority were Black and over 50 years old, with hypertension as the most common comorbidity.
  • Findings indicated that while women had low rates of virologic nonsuppression, female gender was not significantly linked to hypertension or being virologically nonsuppressed compared to men.
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  • Men of African descent experience the highest rates of prostate cancer, but the genetic factors behind this have not been thoroughly explored.
  • Researchers analyzed genetic data from nearly 4,000 prostate cancer cases and over 3,500 controls across several African countries to identify specific genetic associations related to the disease.
  • The study found 15 significant genetic associations, including four new ones, highlighting that genetic variation in prostate cancer is influenced by unique African alleles, suggesting that more research in diverse populations is crucial for understanding cancer genetics.
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Introduction: Many breast centers have adopted multidisciplinary tumor boards to discuss and develop treatment plans for patients diagnosed with breast cancer. This study aims to determine whether adding a fertility specialist to tumor board will improve fertility counseling and utilization in breast cancer patients METHODS: A retrospective study of reproductive age patients diagnosed with breast cancer between January 1, 2012, and January 31, 2020, before and after integrating a designated fertility specialist into a comprehensive multidisciplinary care (cMDC) tumor board. Rates of fertility counseling and preservation were assessed for patients treated before (pre-cMDC) and after (post-cMDC) tumor board enhancement.

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Preoperative virtual surgical planning and the use of 3D-printed patient-specific models and cutting guides are increasingly being used in the reconstruction of mandibular defects with a free bone flap. This technology offers several advantages over conventional surgery, such as reduced operating time, reduced bone flap ischaemia time, and the ability to perform more complex and precise reconstructions. This review presents the evidence supporting 3D-assisted surgery for mandibular defect reconstruction and discusses the utilisation of commercial vendors versus in-house 3D-printing solutions.

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  • Unstructured and structured data in electronic health records (EHR) can provide valuable insights for research, but extracting this information can be challenging; researchers introduced an automated model to identify patients with Alzheimer's Disease, related dementias (ADRD), and mild cognitive impairment (MCI).
  • The study involved a sample of 3,626 outpatient adults, using medical notes and diagnoses from chart reviews to develop a logistic regression model that predicts MCI/ADRD diagnoses with high performance metrics.
  • The model demonstrated impressive accuracy (99.88%) and other metrics (like AUROC of 0.98), showing that automated EHR phenotyping could effectively facilitate large-scale research on MCI/ADRD.
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Background: Team reflexivity and peer feedback in daily clinical work can improve patient safety. However, teams do not always engage in reflection after patient care. A reason could be that team members may lack skills in engaging in team reflection.

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  • Eating disorders (EDs) result in substantial health issues, impacting millions globally, and understanding their transitions and remission can enhance treatment and etiology efforts.* -
  • A study examined over 10,000 people with anorexia nervosa, bulimia nervosa, or EDNOS to assess diagnostic changes and periods of presumed remission, utilizing genetic data from polygenic scores (PGSs).* -
  • Results showed that most patients did not transition diagnoses but experienced remission, with various PGSs linked to these outcomes, indicating a significant genetic influence on ED progression and recovery.*
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American alligators (Alligator mississippiensis) are apex predators and sentinel species in the coastal wetland ecosystem along the Gulf of Mexico. There is concern for alligator exposure and susceptibility to chemical contaminants due to their high trophic level and lower metabolic capability. At present, their hepatic biotransformation capacity to metabolize or detoxify contaminants has not been comprehensively determined.

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