605 results match your criteria: "Georg - August - University Goettingen[Affiliation]"

Oxidative stress is defined as an imbalance between the antioxidant defense system and the production of reactive oxygen species (ROS). At low levels, ROS are involved in the regulation of redox signaling for cell protection. However, upon chronical increase in oxidative stress, cell damage occurs, due to protein, DNA and lipid oxidation.

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Transcatheter Treatment of Secondary Tricuspid Regurgitation With Direct Annuloplasty: Results From a Multicenter Real-World Experience.

Circ Cardiovasc Interv

August 2021

Department of Internal Medicine III, Division of Cardiology, Pneumology, Angiology and Intensive Care, University of Cologne, Germany (M.I.K., S.B., R.P.).

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Background Atrial fibrillation (AF) is a major risk factor for mortality. The prevalence, clinical correlates, and prognostic impact of AF in Takotsubo syndrome (TTS) have not yet been investigated in a large patient cohort. This study aimed to investigate the prevalence, clinical correlates, and prognostic impact of AF in patients with TTS.

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SLM2 Is A Novel Cardiac Splicing Factor Involved in Heart Failure due to Dilated Cardiomyopathy.

Genomics Proteomics Bioinformatics

February 2022

Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, D-69120 Heidelberg, Germany; German Center for Cardiovascular Research (DZHK), Partner site Heidelberg, D-69120 Heidelberg, Germany; Stanford Genome Technology Center, Department of Genetics, Stanford Medical School, Palo Alto, CA 94304, USA. Electronic address:

Alternative mRNA splicing is a fundamental process to increase the versatility of the genome. In humans, cardiac mRNA splicing is involved in the pathophysiology of heart failure. Mutations in the splicing factor RNA binding motif protein 20 (RBM20) cause severe forms of cardiomyopathy.

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Several Alzheimer's disease (AD) atrophy subtypes were identified, but their brain network properties are unclear. We analyzed data from two independent datasets, including 166 participants (103 AD/63 controls) from the DZNE-longitudinal cognitive impairment and dementia study and 151 participants (121 AD/30 controls) from the AD neuroimaging initiative cohorts, aiming to identify differences between AD atrophy subtypes in resting-state functional magnetic resonance imaging intra-network connectivity (INC) and global and nodal network properties. Using a data-driven clustering approach, we identified four AD atrophy subtypes with differences in functional connectivity, accompanied by clinical and biomarker alterations, including a medio-temporal-predominant (S-MT), a limbic-predominant (S-L), a diffuse (S-D), and a mild-atrophy (S-MA) subtype.

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Background: Cryopreservation of embryos is of considerable relevance for the implementation of embryo transfer programs and the establishment of embryo banks in several mammalian species.

Objective: The present investigation compares two different vitrification systems and two different warming solutions.

Materials And Methods: Vitrification was performed using Open Pulled Straw (OPS) or CVM RingFibre plug (CVM) devices.

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Donor defects after lymph vessel transplantation and free vascularized lymph node transfer: A comparison and evaluation of complications.

World J Transplant

April 2021

Division of Plastic Surgery, Department for Trauma Surgery, Orthopedics and Plastic Surgery, University Medical Center Goettingen, Goettingen 37075, Lower Saxony, Germany.

Background: Secondary lymphedema after surgical interventions is a progressive, chronic disease that is still not completely curable. Over the past years, a multitude of surgical therapy options have been described.

Aim: To summarize the single-center complications in lymph vessel (LVTx) and free vascularized lymph node transfer (VLNT).

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USP22 Suppresses Expression in Acute Colitis and Inflammation-Associated Colorectal Cancer.

Cancers (Basel)

April 2021

Gene Regulatory Mechanisms and Molecular Epigenetics Laboratory, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA.

As a member of the 11-gene "death-from-cancer" gene expression signature, ubiquitin-specific protease 22 (USP22) has been considered an oncogene in various human malignancies, including colorectal cancer (CRC). We recently identified an unexpected tumor-suppressive function of USP22 in CRC and detected intestinal inflammation after deletion in mice. We aimed to investigate the function of USP22 in intestinal inflammation as well as inflammation-associated CRC.

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Objective: To find dysregulated urinary microRNAs associated with endometrial cancer as a first step in finding a non-invasive new diagnostic biomarker. The second objective is to determine the correlation of urinary microRNAs with clinicopathological characteristics.

Methods: A prospective cohort study of patients presenting with abnormal bleeding between March and November 2019 was performed at the Royal Cornwall Hospital Trust Truro.

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Arteries of the Lower Limb-Embryology, Variations, and Clinical Significance.

Can Assoc Radiol J

February 2022

Department of Medical Imaging, University Health Network, University of Toronto, Toronto, Ontario, Canada.

Objectives: The purpose of this article is to review the embryology of the lower limb arterial anatomy along with common variants and their clinical relevance.

Design: Embryologic variations of the lower limb arterial system may be explained by i.) persistence of primordial arterial segments, ii.

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The thermal insulation of buildings using wood fiber insulation boards (WFIBs) constitutes a positive contribution towards climate change. Thereby, the bonding of wood fibers using mainly petrochemical-based resins such as polymeric diphenylmethane diisocyanate (pMDI) is an important measure to meet required board properties. Still there is a need to reduce or partial substitute the amount of these kinds of resins in favor of a greener product.

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The BAF complex plays an important role in the development of a wide range of tissues by modulating gene expression programs at the chromatin level. However, its role in neural crest development has remained unclear. To determine the role of the BAF complex, we deleted BAF155/BAF170, the core subunits required for the assembly, stability, and functions of the BAF complex in neural crest cells (NCCs).

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Introduction: MicroRNAs (miRNAs) are noncoding RNAs that regulate gene expression and contribute to the development of cancer. They have been shown to be stable in tissue samples and may be promising diagnostic biomarkers for endometrial cancer.

Material And Methods: A retrospective cohort study of women diagnosed with endometrial cancer between January 2017 and December 2017 was performed at the Royal Cornwall Hospital.

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Aims: A hallmark of heart failure with preserved ejection fraction (HFpEF) is impaired exercise capacity of varying severity. The main determinant of exercise capacity is cardiac output (CO), however little information is available about the relation between the constituents of CO - heart rate and stroke volume - and exercise capacity in HFpEF. We sought to determine if a heterogeneity in heart rate and stroke volume response to exercise exists in patients with HFpEF and describe possible clinical phenotypes associated with differences in these responses.

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New Acetophenones and Chromenes from the Leaves of A. Gray.

Molecules

January 2021

Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University Duesseldorf, 40225 Duesseldorf, Germany.

The dichloromethane extract from leaves of (Rutaceae), endemic to the Hawaiian island of Kaua'i, yielded four new and three previously known acetophenones and 2-chromenes, all found for the first time in . The structures of the new compounds obtained from the dichloromethane extract after purification by chromatographic methods were unambiguously elucidated by spectroscopic analyses including 1D/2D NMR spectroscopy and HRESIMS. The absolute configuration was determined by modified Mosher's method.

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First-line therapy for younger patients with peripheral T-cell non-Hodgkin lymphoma (T-NHL) consists of 6 courses of cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) with or without etoposide (CHOEP), consolidated by high-dose therapy and autologous stem cell transplantation (auto-SCT). We hypothesized that allogeneic stem cell transplantation (allo-SCT) could improve outcomes. 104 patients with peripheral T-cell non-Hodgkin lymphoma, except ALK+ anaplastic large cell lymphoma, 18 to 60 years, all stages, and all age adjusted International Prognostic Index scores, except 0 and stage I, were randomized to 4 cycles of CHOEP and 1 cycle of dexamethasone, cytosine-arabinoside, and platinum (DHAP) followed by high-dose therapy and auto-SCT or myeloablative conditioning and allo-SCT.

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Fine-tuned gene expression is crucial for neurodevelopment. The gene expression program is tightly controlled at different levels, including RNA decay. N-methyladenosine (m6A) methylation-mediated degradation of RNA is essential for brain development.

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Article Synopsis
  • The study presents the first mixed-anionic compounds, sodium sulfate hydride (Na SO H) and deuteride (Na SO D), synthesized through a solid-state reaction involving sodium hydride or deuteride and sodium sulfate.
  • Precise reaction conditions are crucial to prevent sulfate from being reduced to sulfide, which could occur under harsh conditions.
  • The compound's structure was characterized through X-ray and neutron diffraction, revealing a tetragonal lattice, and spectroscopy confirmed the presence of hydride ions without hydroxide, supported by NMR spectra and elemental analysis.
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Interpersonal neural synchrony (INS) has been previously evidenced in mother-child interactions, yet findings concerning father-child interaction are wanting. The current experiment examined whether fathers and their 5- to 6-year-old children (N = 66) synchronize their brain activity during a naturalistic interaction, and addressed paternal and child factors related to INS. Compared to individual problem solving and rest, father-child dyads showed increased INS in bilateral dorsolateral prefrontal cortex and left temporo-parietal junction during cooperative problem solving.

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Background: Cognitive decline has been found to be associated with gray matter atrophy and disruption of functional neural networks in Alzheimer's disease (AD) in structural and functional imaging (fMRI) studies. Most previous studies have used single test scores of cognitive performance among monocentric cohorts. However, cognitive domain composite scores could be more reliable than single test scores due to the reduction of measurement error.

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Passage of spermatozoa through the epididymis of the boar (Sus scrofa domesticus).

Theriogenology

February 2021

Department of Animal Science, Georg-August-University Goettingen, Albrecht-Thaer-Weg 3, 37075, Goettingen, Germany. Electronic address:

Previous studies of epididymal transit in the pig have had insufficient animal numbers to provide a comprehensive picture of a continuous process. The present study attempts to addresses this issue. Radioactively labeled thymidine was infused into the testicular arteries of 48 sexually rested young adult boars of the Goettingen Miniature Pig breed.

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Photosynthetic processes within chloroplasts require substantial amounts of magnesium (Mg). It is suggested that the minimum Mg concentration for yield and dry matter (DM) formation is 1.5 mg g DM.

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Breast cancer (BC) represents the most common type of cancer in females worldwide. Endocrine therapy evolved as one of the main concepts in treatment of hormone-receptor positive BC. Current research focuses on the elucidation of tumour resistance mechanisms against endocrine therapy.

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The SGLT2 inhibitor empagliflozin improved cardiovascular outcomes in patients with diabetes. As the cardiac mechanisms remain elusive, we investigated the long-term effects (up to 2 months) of empagliflozin on excitation-contraction (EC)-coupling in human cardiomyocytes derived from induced pluripotent stem cells (iPSC-CM) in a blinded manner. IPSC from 3 donors, differentiated into pure iPSC-CM (4 differentiations), were treated with a clinically relevant concentration of empagliflozin (0.

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In this work we use scanning X-ray microscopy to study the structure and elemental composition of neuromelanin-positive neurons in substantia nigra tissue of Parkinson patients (PD) and controls. A total of 53 neurons were analyzed with X-ray fluorescence (XRF) and diffraction using sub-µm-focused synchrotron radiation. A statistical evaluation identified copper as the most group-discriminating element and indicated that interindividual and intraindividual variations are of great relevance in tissue measurements of diseased patients and prevent from automated group clustering.

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