Publications by authors named "Seitz J"

Background: Bulimia nervosa (BN) is a serious mental illness with impulsivity as a cardinal symptom. Impulsivity contributes to various other, often comorbid, mental disorders, such as attention deficit/hyperactivity disorder (ADHD) and borderline personality disorder (BPD). The aim of this study was to explore comorbidities of BN with ADHD and BPD as well as the contribution of impulsivity as an underlying trait linking these disorders.

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Employing Emotional Virtual Characters for Teaching in Child and Adolescent Psychiatry Communication and interaction are central to teaching child and adolescent psychiatry, with practical exercises often needing more access to actual patients or actors. Virtual reality (VR) offers an innovative solution by enabling simulation-based learning. With the help of computer-generated, interactive characters, students can practice repeatedly and in a standardized way how to conduct a medical interview and acquire communication skills.

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Magnesium (Mg)-based implants have evolved as a promising innovation in orthopedic trauma surgery, with the potential to revolutionize the treatment of bone diseases, including osteoporotic fractures and bone defects. Available clinical studies mostly show excellent patient outcomes of resorbable Mg-based implants, without the need for subsequent implant removal. However, the occurrence of radiolucent zones around Mg-based implants seems to be a noticeable drawback for a more widespread clinical use.

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Background: Titanium plantar plates have proven successful in the fixation of the first tarsometatarsal arthrodesis (TMT). However, a second surgery is typically needed for implant removal, and potential adverse effects, carried by the conventional implantations, are not uncommon. The purpose of this study was to determine whether a novel magnesium-based plantar plate system provides similar fusion stability to a titanium-based plantar plate system under various loading conditions.

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Background: Sunitinib, a multitarget tyrosine kinase inhibitor, showed encouraging antitumor activity and manageable toxicity in patients with advanced midgut neuroendocrine tumors (NETs) in earlier results from phase I and II trials.

Patients And Methods: In this phase II trial, patients with a nonresectable grade 1 or 2 midgut progressive NET and Eastern Cooperative Oncology Group performance status 0-1 were randomly assigned 1:1 to receive 37.5 mg sunitinib or a placebo, combined with 120 mg lanreotide autogel every 28 days.

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Article Synopsis
  • The study investigated the CTBP2 gene and its relation to anorexia nervosa (AN) and body mass index (BMI) through mutation analysis, revealing 24 variants in the RIBEYE exon among various groups including patients with AN, obese children, and healthy individuals.
  • Three rare non-synonymous variants were found in AN patients, while several variants were unique to children with severe obesity, indicating potential genetic links to these conditions.
  • Functional studies showed that RIBEYE mRNA is expressed in the mouse hypothalamus and is influenced by leptin treatment, suggesting that the RIBEYE gene may play a role in body weight regulation.
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Background: Because premorbid BMI strongly predicts the amount of weight loss in anorexia nervosa (AN)/atypical AN, we hypothesize that weight loss triggers both disorders by inducing the endocrine adaptation to starvation.

Method: We propose research to capture the onset of AN/atypical AN following intentional, otherwise behaviorally motivated, or unintentional weight loss in relationship to premorbid weight.

Results: We propose retrospective and prospective studies to examine the temporal development of symptoms in AN/atypical AN.

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It is well known that hearing in noisy situations is more challenging than in quiet environments. This holds true for adults and especially for children. This study employed a child-appropriate dual-task paradigm to investigate listening effort in children aged six to ten years and young adults.

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Objective: Although proven neuronal changes are correlated with anorexia nervosa (AN), where these changes occur and how they change during the course of this disease are often unclear; this is especially true regarding emotion processing, e.g., of anxiety, despite a growing body of literature on its importance for the pathophysiology and clinical course of patients with AN.

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Masking the bitter taste of foods is one of the key strategies to improve their taste and palatability, particularly in the context of clean labeling, where natural compounds are preferred. Despite the demand, the availability of natural bitter-masking compounds remains limited. Here, we identified the bitter-masking compound 4'-demethyl-3,9-dihydroeucomin () isolated from the resin of by means of an activity-guided in vivo (sensory bitterness rating of quinine) and in vitro (cell-based bitter response assays) approach.

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Article Synopsis
  • The study investigates predictive markers for the benefits of LV5FU2 maintenance therapy after first-line FOLFIRINOX treatment in patients with metastatic pancreatic cancer.
  • It compares two patient groups from the PRODIGE-35 trial: one receiving 12 cycles of FOLFIRINOX, and another receiving 8 cycles followed by LV5FU2 maintenance.
  • Results indicate that certain factors, like age and metastatic sites, affect patient outcomes, suggesting that LV5FU2 maintenance is generally beneficial except for some specific cases.
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Electrochemistry offers tunable, cost effective and environmentally friendly alternatives to carry out redox reactions with electrons as traceless reagents. The use of organoiodine compounds as electrocatalysts is largely underdeveloped, despite their widespread application as powerful and versatile reagents. Mechanistic data reveal that the hexafluoroisopropanol assisted iodoarene oxidation is followed by a stepwise chloride ligand exchange for the catalytic generation of the dichloroiodoarene mediator.

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  • The COVID-19 pandemic significantly affected the mental health of children and adolescents, particularly leading to an increase in eating disorders, especially among girls aged 10 to 16 years.
  • Analysis of health insurance data revealed a rise in administrative prevalence of eating disorders in outpatient settings, while externalizing disorders saw a decrease.
  • Despite the rise in outpatient cases, the severity of anorexia nervosa in inpatients did not show pandemic-related changes, suggesting a possible shift in healthcare focus towards outpatient services during the pandemic.
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Epigenetic modulators such as lysine-specific demethylase 1 (LSD1) and histone deacetylases (HDACs) are drug targets for cancer, neuropsychiatric disease, or inflammation, but inhibitors of these enzymes exhibit considerable side effects. For a potential local treatment with reduced systemic toxicity, we present here soft drug candidates as new LSD1 and HDAC inhibitors. A soft drug is a compound that is degraded in vivo to less active metabolites after having achieved its therapeutic function.

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  • The study investigates how gut microbiota from patients with anorexia nervosa (AN) affects anxiety, cognitive flexibility, and dopamine signaling in rats through fecal microbiota transplantation (FMT).
  • Results showed no significant changes in cognition or dopamine activity after receiving microbiota from AN patients compared to controls, although antibiotic treatment lowered task engagement in the rats.
  • The findings suggest that while AN-associated gut microbiota may not directly influence cognitive flexibility, the limitations of the FMT methods used indicate a need for better experimental protocols in future research.
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Anorexia nervosa (AN) is a severe eating disorder that predominantly affects females and typically manifests during adolescence. There is increasing evidence that serum cytokine levels are altered in individuals with AN. Previous research has largely focused on adult patients, assuming a low-grade pro-inflammatory state.

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Introduction: Immunoglobulins (Ig) reactive with α-melanocyte-stimulating hormone (α-MSH), an anorexigenic neuropeptide, are present in humans and were previously associated with eating disorders. In this longitudinal study involving patients with anorexia nervosa (AN), we determined whether α-MSH in serum is bound to IgG and analyzed long-term dynamics of both α-MSH peptide and α-MSH-reactive Ig in relation to changes in BMI and gut microbiota composition.

Methods: The study included 64 adolescents with a restrictive form of AN, whose serum samples were collected at hospital admission, discharge, and during a 1-year follow-up visit and 41 healthy controls, all females.

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Article Synopsis
  • * A systematic review collected and evaluated 23 studies on the epigenetics of AN, highlighting epigenome-wide association studies (EWASs) as promising avenues for understanding disease mechanisms and potential biomarkers.
  • * Future research should focus on larger sample sizes, longitudinal designs, and consistent methodologies to improve insights into AN's pathophysiology and enhance patient treatments and outcomes.
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At the turn of the twentieth century, Russian imperial officials hoped to transform the Kazakh Steppe from a zone of pastoral nomadism into a zone of sedentary grain farms. They planned to accomplish this transformation by importing peasants from European Russia and settling them in the steppe along with advanced scientific agricultural practices, equipment, and infrastructure. It was a project that linked steppe settlement and the Russian Empire to a global story of settler colonialism, science, and technology in the first decades of the twentieth century.

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Previous studies have demonstrated a brain volume decrease linked to long-term starvation in patients with anorexia nervosa (AN). Food intake is critically diminished in this disorder, leading to one of the highest mortality rates within the psychiatric disease spectrum. As reported in animal models, astrocytes seem to be the most affected cell type in AN.

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Anorexia nervosa (AN) has a multifaceted and complex pathology, yet major gaps remain in our understanding of factors involved in AN pathology. MicroRNAs (miRNAs) play a regulatory role in translating genes into proteins and help understand and treat diseases. An extensive literature review on miRNAs with AN and comorbidities has uncovered a significant lack in miRNA research.

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Objective: For adolescents, DSM-5 differentiates anorexia nervosa (AN) and atypical AN with the 5th BMI-centile-for-age. We hypothesized that the diagnostic weight cut-off yields (i) lower weight loss in atypical AN and (ii) discrepant premorbid BMI distributions between the two disorders. Prior studies demonstrate that premorbid BMI predicts admission BMI and weight loss in patients with AN.

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Mutations leading to a reduced or loss of function in genes of the leptin-melanocortin system confer a risk for monogenic forms of obesity. Yet, gain of function variants in the melanocortin-4-receptor (MC4R) gene predispose to a lower BMI. In individuals with reduced body weight, we thus expected mutations leading to an enhanced function in the respective genes, like leptin (LEP) and MC4R.

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Anorexia nervosa is one of the most frequent chronic disorders of adolescence associated with a high mortality. During the COVID-19-pandemic, the number of hospitalized children and adolescents with anorexia nervosa significantly increased. This article outlines new research findings to decode the etiology of this serious disorder, especially a genetic disposition and changes of metabolism.

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