Publications by authors named "Frenzel S"

: Reports on type V FDP tendon avulsions and their treatment are rare. Furthermore, they are not always classified in a consistent manner in the literature. The purpose of our retrospective data analysis was to evaluate and present jersey finger type V injury characteristics, primary radiological findings, treatment options and subsequent patient outcomes, as well as potential complications.

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  • - White matter hyperintensities indicate damage in the brain's white matter, which can lead to brain shrinkage and is linked to dementia; a study of over 51,000 people found that larger volumes of these hyperintensities correspond to thinner brain cortex.
  • - Researchers identified 20 significant genetic loci related to white matter hyperintensities that affect genes involved in brain cell types known to support vascular health and neuronal function; some of these genes play roles in processes like axonal structure and transport within the brain.
  • - The genetic traits tied to white matter issues were linked to cardiovascular health, neurodegeneration markers, and poorer cognitive performance, with a polygenic risk score effectively predicting dementia risk in a separate large
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  • - The aging process of the brain is affected by lifestyle, environmental, genetic factors, and age-related diseases, with advanced imaging and AI techniques helping to reveal the complexities of neuroanatomical changes.
  • - A study involving nearly 50,000 participants identified five major patterns of brain atrophy, which are quantified using R-indices to analyze their connections to various biomedical, lifestyle, and genetic factors.
  • - These R-indices not only predict disease progression and mortality but also offer a new, nuanced framework for understanding brain aging, which may enhance personalized diagnostics and improve clinical trial strategies.
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Type 2 diabetes mellitus (T2DM) has a high prevalence in Germany. Tailored health communication campaigns are part of preventing T2DM at a societal level, with narrative approaches as a promising communication strategy. The aim of this study was to qualitatively examine identification with characters as a potential narrative effect mechanism within a national T2DM communication campaign (Slogan: "Diabetes - not only a question of type").

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Background: Approximately 30,000 people are affected by severe injuries in Germany each year. Continuous progress in prehospital and hospital care has significantly reduced the mortality of polytrauma patients. With increasing survival rates, the functional outcome, health-related quality (hrQoL) of life and ability to work are now gaining importance.

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  • * In a study of 926 individuals without serious heart conditions, it was found that a higher baseline LVMI was directly linked to decreased cortical thickness and an increased brain age after 7 years, even when factoring out hypertension and blood pressure.
  • * The findings indicate that LVMI could serve as a simple marker for identifying individuals at risk of cognitive decline and dementia, with stronger effects observed in those with significantly higher LVMI levels.
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  • - The study focuses on how brain aging shows various neuroanatomical changes that could hint at early stages of neurodegenerative diseases, especially in individuals without diagnosed cognitive impairment.
  • - Researchers used a deep learning method to analyze structural brain measures from over 27,000 individuals aged 45 to 85 years from 1999 to 2020 to identify common patterns.
  • - Three subgroups were discovered: a typical aging group with minor brain changes, and two accelerated aging groups that exhibited more significant changes after age 65, which may correlate with genetics and risk factors for cognitive decline.
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White matter lesions (WML) emerge as a consequence of vascular injuries in the brain. While they are commonly observed in aging, associations have been established with neurodegenerative and neurological disorders such as dementia or stroke. Despite substantial research efforts, biological mechanisms are incomplete and biomarkers indicating WMLs are lacking.

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Brain aging is a complex process influenced by various lifestyle, environmental, and genetic factors, as well as by age-related and often co-existing pathologies. MRI and, more recently, AI methods have been instrumental in understanding the neuroanatomical changes that occur during aging in large and diverse populations. However, the multiplicity and mutual overlap of both pathologic processes and affected brain regions make it difficult to precisely characterize the underlying neurodegenerative profile of an individual from an MRI scan.

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Surgical site infection (SSI) following osteosynthesis of trochanteric or subtrochanteric fractures is a rare but serious complication with incidence rate ranging from 1 to 3%. SSIs are associated with higher mortality and increased length of hospital stay resulting in higher healthcare costs and loss of life quality. In this retrospective analysis all patients with SSI following osteosynthesis of trochanteric or subtrochanteric fractures at the Department of Trauma Surgery were identified.

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  • - Recent research indicates a link between psychosocial stress and brain health, prompting a study to investigate how stress influences brain aging.
  • - Data from a large German cohort study, involving 991 participants, was analyzed to create a psychosocial stress score and assess its relationship with brain aging as measured by brain atrophy in MRI scans.
  • - The results showed that stress related to emotions significantly increases the risk of advanced brain aging, while the overall stress level did not show a statistically significant impact; further research is needed to better understand emotional distress's role in brain health.
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Background And Purpose: Prior studies reported conflicting findings regarding the association of nonalcoholic fatty liver disease (NAFLD) and liver fibrosis with measures of brain health. We examined whether NAFLD and liver fibrosis are associated with structural brain imaging measures in middle- and old-age adults.

Methods: In this cross-sectional study among dementia- and stroke-free individuals, data were pooled from the Offspring and Third Generation cohorts of the Framingham Heart Study (FHS), the Rotterdam Study (RS), and the Study of Health in Pomerania.

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Deteriorations in slow wave sleep (SWS) have been linked to brain aging and Alzheimer's disease (AD), possibly due to its key role in clearance of amyloid-beta and tau (Aß/tau), two pathogenic hallmarks of AD. Spermidine administration has been shown to improve sleep quality in animal models. So far, the association between spermidine levels in humans and parameters of SWS physiology are unknown but may be valuable for therapeutic strategies.

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Introduction: Heart rate variability (HRV), defined as the variability of consecutive heart beats, is an important biomarker for dysregulations of the autonomic nervous system (ANS) and is associated with the development, course, and outcome of a variety of mental and physical health problems. While guidelines recommend using 5 min electrocardiograms (ECG), recent studies showed that 10 s might be sufficient for deriving vagal-mediated HRV. However, the validity and applicability of this approach for risk prediction in epidemiological studies is currently unclear to be used.

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Membership of multiple groups and identification with those groups have been found to be positively related to individuals' health and well-being. The present research sought to replicate this finding in two large, representative samples. Moreover, we sought to extend previous work by shedding light on the mechanisms mediating the effects of multiple group membership on positive health outcomes.

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Perivascular space (PVS) burden is an emerging, poorly understood, magnetic resonance imaging marker of cerebral small vessel disease, a leading cause of stroke and dementia. Genome-wide association studies in up to 40,095 participants (18 population-based cohorts, 66.3 ± 8.

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  • A meta-analysis was conducted involving 1,085 participants from three international studies to investigate structural brain differences between people with insomnia disorder (ID) and healthy controls.* -
  • Researchers used brain imaging techniques to measure brain areas and tried to identify any patterns of atrophy associated with insomnia symptoms, but found no significant differences in brain structure between the groups.* -
  • The study highlighted inconsistencies in previous findings about brain morphology related to insomnia and concluded that there is no clear global brain atrophy pattern linked to individuals with insomnia.*
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Introduction: Numerous papers in different fields have already shown that CT imaging of the Musculus Psoas Major (MPM) can be used to predict patient outcome. Unfortunately, most of the methods presented in the literature are very complex and not easy to perform in the clinic. Therefore, the objectives of the study were to introduce a novel and convenient method for measuring the MPM to trauma surgeons and to prove the association between MPM morphology and mortality in elderly polytraumatized patients.

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Since the first COVID-19 case was confirmed in Germany, the German government has introduced various measures to counteract the pandemic. The implementation of safety measures can have counterproductive effects: people engage in risk compensatory behavior (fewer safety behaviors) after regulations are introduced and obligated by the government, which is known as the Peltzman effect (Peltzman, 1975). Based on the Peltzman effect, the researchers of this study hypothesized that people complied less with safety behaviors and took more health risks (e.

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The SARS-CoV-2 pandemic turned out to be a serious threat to mental and physical health. However, the relative contribution of corona-specific (DH) and general stressors (DH) on mental burden, and specific protective and risk factors for mental health are still not well understood. In a representative sample ( = 3,055) of the German adult population, mental health, potential risk, and protective factors as well as DH and DH exposure were assessed online during the SARS-CoV-2 pandemic (June and July 2020).

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Although the common pathology of Alzheimer's disease (AD) and white matter hyperintensities (WMH) is disputed, the gene has been implicated in both conditions: its whole-blood gene expression was associated with WMH volume and its missense variant rs3747742 with AD risk. We re-examined those associations within one comprehensive dataset of the general population, additionally searched for cross-relations and illuminated the role of the apolipoprotein E () ε4 status in the associations. For our linear regression and linear mixed effect models, we used 1949 participants from the Study of Health in Pomerania (Germany).

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Introduction: Sleep is increasingly recognized as a major risk factor for neurodegenerative disorders such as Alzheimer's disease (AD).

Methods: Using an magnetic resonance imaging (MRI)-based AD score based on clinical data from the Alzheimer's Disease Neuroimaging Initiative 1 (ADNI1) case-control cohort, we investigated the associations between polysomnography-based sleep macro-architecture and AD-related brain atrophy patterns in 712 pre-symptomatic, healthy subjects from the population-based Study of Health in Pomerania.

Results: We identified a robust inverse association between slow-wave sleep and the AD marker (estimate: -0.

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Introduction: Supplementation with spermidine may support healthy aging, but elevated spermidine tissue levels were shown to be an indicator of Alzheimer's disease (AD).

Methods: Data from 659 participants (age range: 21-81 years) of the population-based Study of Health in Pomerania TREND were included. We investigated the association between spermidine plasma levels and markers of brain aging (hippocampal volume, AD score, global cortical thickness [CT], and white matter hyperintensities [WMH]).

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  • Vitamin D deficiency is linked to poorer cognitive function and potential neurodegenerative issues, prompting a study on its relationship with brain aging using MRI data from 1,865 individuals.* -
  • Analysis revealed that lower levels of vitamin D are associated with increased brain age and reduced total and gray matter volumes, particularly in men, although no significant impact on hippocampal volume was found.* -
  • The findings support the idea that vitamin D may have neuroprotective effects, suggesting that deficiency could lead to accelerated brain aging.*
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Team identification is associated with less exhaustion and disengagement through more social support and higher collective self-efficacy. However, previous studies did not distinguish between emotional and instrumental support, even though both forms of support may relate differently to collective self-efficacy. By distinguishing between both support forms, we expected an indirect effect-the 'supportive structure' mechanism-of team identification on burnout mediated via emotional support.

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