Publications by authors named "Emmerich K"

Background: It is challenging to identify emergency department (ED) patients with sepsis who will require resources such as positive-pressure ventilation, vasopressors, or intensive care unit (ICU) admission.

Objectives: Describe the correlation of cardiopulmonary ultrasound (CPUS) with need for care escalation.

Methods: Single center, prospective, observational study of adult patients with suspected sepsis.

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Today, microendoscopic minimally invasive therapy techniques, such as laser dacryoplasty (LDP) for complete stenosis and microdrill dacryoplasty (MDP) for incomplete stenoses are therapeutic options for PANDO (primary acquired nasolacrimal duct obstructions). Due to excellent prognosis, external DCR is still "gold standard" especially for patients with complex problems.

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Various strategies for replacing retinal neurons lost in degenerative diseases are under investigation, including stimulating the endogenous regenerative capacity of Müller Glia (MG) as injury-inducible retinal stem cells. Inherently regenerative species, such as zebrafish, have provided key insights into mechanisms regulating MG dedifferentiation to a stem-like state and the proliferation of MG and MG-derived progenitor cells (MGPCs). Interestingly, promoting MG/MGPC proliferation is not sufficient for regeneration, yet mechanistic studies are often focused on this measure.

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We have successfully generated human induced pluripotent stem cells (hiPSC) from peripheral blood mononuclear cells (PBMCs) of a patient with COPA Syndrome. The patient, a 6 year old Caucasian male, has a spontaneous de novo missense mutation that replaced alanine with proline in the COPA gene. This paper confirms the differentiation potential of the hiPSC line, the presence of the p.

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Article Synopsis
  • Induced pluripotent stem cells (iPSCs) were created from peripheral blood cells of two patients with a CDC42 gene mutation.
  • These iPSCs displayed characteristics of pluripotency, successfully differentiated into the three germ layers, maintained normal chromosomes, and retained the mutation.
  • The generated iPSC lines and their derivatives could be useful for researching disease mechanisms and potential therapies.
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Study of disease-relevant immune cells, namely monocytes and macrophages, is limited based on availability of primary tissue, a limitation that can be remedied using human induced pluripotent stem cell (hiPSC) technology. Here, we present a protocol for differentiation of monocytes and macrophages from hiPSCs. We describe steps for hiPSC maintenance, mesoderm lineage induction, hematopoietic progenitor cells (HPCs) commitment and expansion, and myeloid lineage induction.

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Many genes are known to regulate retinal regeneration after widespread tissue damage. Conversely, genes controlling regeneration after limited cell loss, as per degenerative diseases, are undefined. As stem/progenitor cell responses scale to injury levels, understanding how the extent and specificity of cell loss impact regenerative processes is important.

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Unlabelled: Many genes are known to regulate retinal regeneration following widespread tissue damage. Conversely, genes controlling regeneration following limited retinal cell loss, akin to disease conditions, are undefined. Combining a novel retinal ganglion cell (RGC) ablation-based glaucoma model, single cell omics, and rapid CRISPR/Cas9-based knockout methods to screen 100 genes, we identified 18 effectors of RGC regeneration kinetics.

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Retinal Müller glia (MG) can act as stem-like cells to generate new neurons in both zebrafish and mice. In zebrafish, retinal regeneration is innate and robust, resulting in the replacement of lost neurons and restoration of visual function. In mice, exogenous stimulation of MG is required to reveal a dormant and, to date, limited regenerative capacity.

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Retinal Müller glia function as injury-induced stem-like cells in zebrafish but not mammals. However, insights gleaned from zebrafish have been applied to stimulate nascent regenerative responses in the mammalian retina. For instance, microglia/macrophages regulate Müller glia stem cell activity in the chick, zebrafish, and mouse.

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Brain laterality is a prominent feature in Bilateria, where neural functions are favored in a single brain hemisphere. These hemispheric specializations are thought to improve behavioral performance and are commonly observed as sensory or motor asymmetries, such as handedness in humans. Despite its prevalence, our understanding of the neural and molecular substrates instructing functional lateralization is limited.

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Article Synopsis
  • - The study addresses challenges in volumetric imaging of living organisms, focusing on the need for high speed and resolution across a large field of view to observe dynamic processes in 3D at cellular levels.
  • - A new microscopy technique called mesoscopic oblique plane microscopy (Meso-OPM) was developed, utilizing a diffractive light sheet to enhance axial resolution by sixfold compared to existing methods.
  • - Meso-OPM achieved a field of view of up to 5.4 mm × 3.3 mm and a resolution of 2.5 μm × 3 μm × 6 μm, allowing for comprehensive imaging of zebrafish larvae, including neuronal activity and blood flow dynamics
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The availability of nesting resources influences the persistence and survival of bee communities. Although a positive effect of artificial nesting structures has frequently been shown for aboveground cavity-nesting wild bees, studies on below ground-nesting bees are rare. Artificial nesting hills designed to provide nesting habitats for ground-nesting bees were therefore established within the BienABest project in 20 regions across Germany.

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  • Human-induced pluripotent stem cell-derived endothelial cells (iECs) hold promise for studying blood vessel development and creating cardiovascular treatments, but their mechanisms for angiogenesis are not fully understood.
  • A study found that iECs show a higher angiogenic phenotype due to increased expression of VEGF receptor 2 (VEGFR2), which is regulated by glycolysis enzymes and epigenetic factors, specifically the acetylation of histone 3 by histone acetyltransferase P300.
  • Using a zebrafish model, researchers demonstrated that manipulating P300 activity can enhance or reduce the ability of iECs to promote fin regeneration, highlighting the significance of epigenetics on their therapeutic functions.
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Article Synopsis
  • Transgenic expression of bacterial nitroreductase (NTR) enzymes enhances eukaryotic cells' sensitivity to prodrugs like metronidazole (MTZ), allowing selective destruction of specific cells for research purposes.
  • * The newly developed NTR 2.0 variant shows a significant increase in efficacy, reducing the need for toxic prodrug treatments and overcoming resistance in certain cell types.
  • * This advancement supports more effective studies on cell function, regeneration, and modeling of chronic diseases, along with resources for researchers to utilize NTR 2.0.
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Objective: The purpose of this study was to investigate the efficacy of hyperangulated video laryngoscopy (HAVL) versus standard geometry video laryngoscopy (SGVL) in the simulated prehospital environment using a manikin. There is consensus that video laryngoscopy (VL) can be very useful in the emergency department when difficult intubations are predicted. Emergency medical service (EMS) providers are also often faced with difficult, rapidly deteriorating airway management situations that not only involve patient and operator factors but also include challenging unique environmental factors, such as nonoptimized positions in transport vehicles (eg, helicopters and ambulances) or at ground level or entrapped positions.

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Retinitis pigmentosa (RP) and associated inherited retinal diseases (IRDs) are caused by rod photoreceptor degeneration, necessitating therapeutics promoting rod photoreceptor survival. To address this, we tested compounds for neuroprotective effects in multiple zebrafish and mouse RP models, reasoning drugs effective across species and/or independent of disease mutation may translate better clinically. We first performed a large-scale phenotypic drug screen for compounds promoting rod cell survival in a larval zebrafish model of inducible RP.

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Study Objective: To describe changes in cardiac function throughout the course of resuscitation of patients with suspected septic shock.

Methods: Prospective observational cohort study of Point-of-Care Transthoracic Echocardiograms (TTE) obtained in Emergency Department (ED) patients with a presumed infectious cause of hypotension within one hour of initiating IV fluid resuscitation. Findings of this pre-resuscitation TTE were compared to mid-resuscitation TTE (obtained upon disposition from the ED), and post-resuscitation TTE (obtained after admission to hospital).

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Renewable fuels hold great promise for the future yet their susceptibility to biodegradation and subsequent corrosion represents a challenge that needs to be directly assessed. Biodiesel is a renewable fuel that is widely used as a substitute or extender for petroleum diesel and is composed of a mixture of fatty acid methyl esters derived from plant or animal fats. Biodiesel can be blended up to 20% v/v with ultra-low sulfur diesel (i.

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Polyacrylamide (PAM) and its derivatives are the most commercially available water-soluble polymers and are frequently used for the production of clay-polymer composites. The characterization of their thermal behavior and decomposition was carried out mainly under reduced conditions by using N, He or Ar gas flow. The object of this study was to investigate the thermal decomposition of cationic (PAMCl), nonionic (PAM°), and anionic (NaPAM) polyacrylamide under synthetic air (SynA) in detail using a thermogravimetry/differential scanning calorimetry (TG/DSC) system connected to a quadrupole mass spectrometer (MS).

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Solitary congenital or early apparent pigmented macules are usually without relevance; however, when multiple, extensive or in a patterned arrangement, they are not uncommonly the first sign of an underlying genetic syndrome. The present article gives an overview on the clinical significance of multiple café-au-lait macules, multiple lentigines and pigmentary mosaicism and discusses the differential diagnosis of associated syndromes. Early diagnosis with the essential contribution of the dermatologist is not only important for genetic counseling but can also contribute to avoidance of sometimes life-threatening complications.

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