Publications by authors named "HEINRICH S"

As multigene panel testing is becoming routine in clinical care, there are recommendations at national and international level, as to which genes should be analyzed in the context of a hereditary breast and ovarian cancer (HBOC). However, the individual composition of gene panels offered by testing laboratories vary, resulting in a different variant diagnostic rate. Therefore, we performed a retrospective NGS dataset analysis of suspected HBOC patients who had been tested at different German diagnostic laboratories that are part of the NASGE network.

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Purpose: To identify baseline clinical predictors of visual outcomes six months after acute optic neuritis using data from our completed clinical neuroprotection trial (TONE study).

Design: Secondary analysis of data from the TONE study cohort (NCT01962571).

Subjects: Total of 103 patients presenting within 10 days of a first episode of acute unilateral optic neuritis as a clinically isolated syndrome with baseline high contrast visual acuity (HCVA) < 20/40 Snellen (logMAR 0.

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Purpose: Traditional visual acuity (VA) measurements depend on subjective responses, which can be unreliable, especially with uncooperative participants. Objective measurements with visual evoked potentials (VEP) address this issue but can overestimate VA in amblyopia. This study aims to establish the P300 component of the event-related potential as an objective VA test for amblyopia and compare its performance to subjective (psychophysical) and VEP-based VA estimates.

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Cancer remains one of the deadliest diseases worldwide, with some tumors proving difficult to treat and increasingly resistant to current therapies. Capitalizing on this, there is a need for new therapeutic agents with novel mechanisms of action. Among promising candidates, Fe(III) complexes have gained significant attention as potential chemotherapeutic agents.

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Background: Electroretinograms (ERG) are usually recorded with non-invasive corneal electrodes, requiring direct contact with the ocular surface. However, corneal electrode application is not tolerated by some individuals. The advent of handheld ERG devices has facilitated the use of skin electrodes for ERG measurements.

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Article Synopsis
  • Helicopter hoist operations (HHO) are crucial for conducting rescue missions in Germany's challenging mid-range mountain terrains, especially for outdoor sports-related injuries.
  • A study analyzing HHO missions from 2020 to 2022 found 410 rescue cases, with 304 suitable for statistical analysis, revealing a peak in summer and on weekends with 75% of cases linked to trauma.
  • The analysis indicated that many patients were in severe conditions requiring invasive treatments, and different air rescue bases employed varying tactics, affecting the efficiency of their missions.
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Aims: Continuous glucose measurement (CGM) systems are increasingly utilised by people with diabetes mellitus (DM) and less is known about usage behaviour. Therefore, this study aims to analyse additionally utilisation of blood glucose measurement (BGM) for insurants who are using CGM.

Methods: The study used secondary data, health claims data from the AOK Saxony-Anhalt (Germany), from 2016 to 2021, analysing a sample of 52,296 individuals with insulin-requiring DM.

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  • Previous electroretinogram studies show that people with major depressive disorder (MDD) have reduced retinal contrast gain, affecting their visual perception.
  • The study compares contrast suppression in 21 MDD patients and 23 healthy controls (HC) using various stimuli and finds that MDD patients demonstrate less contrast suppression, especially with high stimulus contrast.
  • These findings suggest that altered dopamine function and changes in retinal processing may contribute to the visual perception issues observed in individuals with MDD.
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Stress-inducible heat shock protein 70 (Hsp70), which functions as a molecular chaperone and is frequently overexpressed in different cancer cell types, is present on the cell surface of tumor cells and is actively released into the circulation in free and extracellular lipid vesicle-associated forms. Since the exact pathomechanism of endometriosis has not yet been elucidated (although it has been associated with the development of endometrial and ovarian cancer), we asked whether extracellular Hsp70 and circulating endometriotic cells (CECs) reflect the presence and development of endometriosis. Therefore, circulating levels of free and lipid microvesicle-associated Hsp70 were measured using the Hsp70-exo ELISA, and the presence of circulating CECs in the peripheral blood of patients with endometriosis was determined using membrane Hsp70 (mHsp70) and EpCAM monoclonal antibody (mAb)-based bead isolation approaches.

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Background: Ultra-high dose rate (UHDR/FLASH) irradiations, along with particle minibeam therapy (PMBT) are both emerging as promising alternatives to current radiotherapy techniques thanks to their improved healthy tissue sparing and similar tumor control.

Purpose: Monte Carlo (MC) modeling of a commercial machine delivering 5-7 MeV electrons at UHDR. This model was used afterward to compare measurements against simulations for an experimental setup combining both FLASH and PMBT modalities.

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  • The study focuses on PLA2G6-associated neurodegeneration (PLAN), which includes three diseases with similar symptoms, particularly highlighting infantile neuroaxonal dystrophy (INAD), a condition that affects vision and motor skills from an early age.
  • Researchers estimated the genetic prevalence of PLAN using two approaches: collecting genetic variant data from various databases and analyzing literature to find additional relevant variants. They determined that the estimated prevalence ranges from 1 in 987,267 to 1 in 1,570,079 pregnancies.
  • The findings indicate a significant underdiagnosis of PLAN and suggest a higher presence of PLA2G6 variants in African and Asian populations, emphasizing the need for better diagnostic efforts
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The delivery of ultra-high dose rates of radiation, called flash irradiation or flash-RT, has emerged as a new modality of radiotherapy shaking up the paradigm of proportionality of effect and dose whatever the method of delivery of the radiation. The hallmark of flash-RT is healthy tissue sparing from the side effects of radiation without decrease of the antitumor efficiency in animal models. In this review we will define its specificities, the molecular mechanisms underlying the flash effect and the ongoing developments to bring this new modality to patient treatment.

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  • Neutrophils fight bacteria using phagocytosis and release reactive substances like hypochlorous acid (HOCl), which can damage proteins.
  • The study found that lipid N-chloramines form in bacterial and monocytic cell membranes when exposed to HOCl, indicating their potential role in protein oxidation.
  • Glutathione, an antioxidant, can neutralize these lipid N-chloramines, suggesting their involvement in inflammation and the immune response, with reduced stability in living bacterial cells compared to artificial membranes.
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Background: Saxony-Anhalt has the highest old-age dependency ratio among the German federal states. The proportion of long-term care-dependent people can be expected to increase in the future, given the aging of the population. The SARS-CoV-2 pandemic has influenced nursing care, reduced the utilisation of services and led to changes in care arrangements.

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Purpose: The ramp aftereffect, a visual phenomenon in which perception of light changes dynamically after exposure to sawtooth-modulated light, was first described in 1967. Despite decades of psychophysical research, location and mechanisms of its generation remain unknown. In this study, we investigated a potential retinal contribution to effect formation with specific emphasis on on-/off-pathway involvement.

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In order to determine the effect of nystagmus on objective visual acuity (VA) estimates, we compared subjective (VA) and objective (VEP, VA) VA estimates in participants with nystagmus. For this purpose, 20 participants with nystagmus (NY) caused by idiopathic infantile nystagmus, albinism, achiasma or acquired nystagmus were recruited in this study. Estimates of BCVA (best corrected visual acuity) were determined psychophysically (VA; FrACT, Freiburg visual acuity test) and electrophysiologically (VA; EP2000) according to ISCEV (International Society of Clinical Electrophysiology of Vision) guidelines.

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Tardigrades are microscopic animals renowned for their ability to withstand extreme conditions, including high doses of ionizing radiation (IR). To better understand their radio-resistance, we first characterized induction and repair of DNA double- and single-strand breaks after exposure to IR in the model species . Importantly, we found that the rate of single-strand breaks induced was roughly equivalent to that in human cells, suggesting that DNA repair plays a predominant role in tardigrades' radio-resistance.

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Purpose: Accurate objective assessment of visual acuity is crucial, particularly in cases of suspected malingering, or when the patient's inability to cooperate makes standard psychophysical acuity tests unreliable. The P300 component of the event-related potentials offers a potential solution and even allows for the use of standard optotypes like the Landolt C. However, low-vision patients with large eccentric visual field defects often struggle to locate the Landolt C gap quickly enough for a P300 to be reliably produced.

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Intracytoplasmic sperm injection (ICSI) is an assisted reproductive technology for treatment of severe male infertility introduced into clinical practice in 1992. This review provides a brief history of the development of ICSI by acknowledging major developments in the field. The review addresses key developments in pre-clinical and early studies, how ICSI compares with in vitro fertilisation, long-term consequences, how the mechanistic approach to ICSI has changed in both manual and semi-automated approaches, and how sperm selection procedures are integrated into ICSI.

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Article Synopsis
  • - The study investigates how depression affects visual processing using the electroretinogram (ERG), focusing on patients with major depressive disorder (MDD) and comparing them to healthy controls (HC).
  • - Results showed that MDD patients had lower contrast sensitivity and reduced pattern ERG (PERG) ratios, indicating alterations in visual processing linked to depression.
  • - The use of a handheld ERG device revealed diminished a-wave amplitudes in MDD patients, highlighting its potential as a practical tool for depression research and suggesting the PERG may serve as an objective marker for the condition.
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Background And Objective: Accurate magnetic resonance imaging (MRI) reporting is essential for transperineal prostate biopsy (TPB) planning. Although approved computer-aided diagnosis (CAD) tools may assist urologists in this task, evidence of improved clinically significant prostate cancer (csPCa) detection is lacking. Therefore, we aimed to document the diagnostic utility of using Prostate Imaging Reporting and Data System (PI-RADS) and CAD for biopsy planning compared with PI-RADS alone.

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Background And Objectives: Optic neuritis is the most common optic neuropathy in young adults and a frequent manifestation of multiple sclerosis. Its clinical course is pertinent to the design of visual pathway neuroprotection trials.

Methods: This is a secondary analysis of longitudinal data from the TONE trial, which included 103 patients from 12 German academic tertiary centers with acute unilateral optic neuritis as a clinically isolated syndrome and baseline high-contrast visual acuity <0.

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Background: Enhanced recovery programs after total hip arthroplasty have been shown to reduce hospital length of stay without compromising results, but yet there is a lack of data for the Swiss population. Therefore, this retrospective cohort study evaluated whether similar positive effects on clinical outcomes are present in the context of the Swiss healthcare system.

Methods: Patients who underwent elective primary total hip arthroplasty were analysed.

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Background: Physical activities are important to maintain and promote physical functioning and activities of daily living in people with dementia. Nurses are in a key position to deliver physical activity interventions in nursing homes. However, synthesized strategies for sustainable implementation of physical activity interventions in nursing homes for people with dementia are lacking.

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