8,041 results match your criteria localization acute


Acute effects of estradiol-17β on plasma volume and uterine cell proliferation in sheep.

Theriogenology 2021 Sep 17;176:12-17. Epub 2021 Sep 17.

Department of Animal Sciences, North Dakota State University, Dept 7630, PO Box 6050, Fargo, ND, 58108-6050, USA. Electronic address:

Ovarian steroids play an important role in increasing plasma volume in pregnant females and preparing the uterus for implantation. We hypothesized that a short duration of increased estradiol-17β (E2) would increase plasma volume and uterine cell proliferation in ovariectomized ewes. Adult non-pregnant Romanov ewes (n = 15) were ovariectomized. Read More

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September 2021

Thyroid Gland Metastasis From Endometrial Carcinoma Causing Acute Severe Dyspnea.

Ear Nose Throat J 2021 Sep 24:1455613211045564. Epub 2021 Sep 24.

ENT Department, 18506Degli Infermi Hospital, Biella, Italy.

Thyroid metastasis from cervical carcinomas is an extremely rare disease; therefore, only a few cases have so far been reported in the literature. Due to the lack of data and the heterogeneity of clinical cases, the percentage of patients affected by thyroid metastases eligible to undergo surgery is not easily predictable. This report describes a rare case of endometrioid adenocarcinoma metastasized to the thyroid gland. Read More

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September 2021

ST-segment elevation myocardial infarction due to septic coronary embolism: a case report.

Eur Heart J Case Rep 2021 Sep 29;5(9):ytab302. Epub 2021 Jul 29.

Department of Experimental and Clinical Medicine, School of Human Health Sciences, Azienda Ospedaliero-Universitaria Careggi and University of Florence, Largo Brambilla 3, 50134, Florence, Italy.

Background : Coronary artery embolism is an infrequent cause of type 2 myocardial infarction which can be due to arterial thromboembolism or septic embolism. While systemic embolization is one of the most acknowledged and threatened complications of infective endocarditis, coronary localization of the emboli causing acute myocardial infarction is exceedingly rare occurring in <1% of cases.

Case Summary : A 52-year-old man with a history of Bentall procedure and redo aortic valve replacement due to prosthetic degeneration (11 years prior to the current presentation) presented to the emergency department with high-grade fever and myalgias. Read More

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September 2021

Genome-wide regulation of CpG methylation by ecCEBPα in acute myeloid leukemia.

F1000Res 2021 11;10:204. Epub 2021 Mar 11.

Department of Biological and Medical Physics, Moscow Institute of Physics and Technology, Moscow, Russian Federation.

Acute myeloid leukemia (AML) is a hematopoietic malignancy characterized by genetic and epigenetic aberrations that alter the differentiation capacity of myeloid progenitor cells. The transcription factor is frequently mutated in AML patients leading to an increase in DNA methylation in many genomic locations. Previously, it has been shown that (extra coding CEBP ) - a lncRNA transcribed in the same direction as gene - regulates DNA methylation of promoter in Here, we hypothesize that could participate in the regulation of DNA methylation in . Read More

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Clinical heterogeneity of low flow spinal arteriovenous fistulas; a case series.

BMC Neurol 2021 Sep 21;21(1):366. Epub 2021 Sep 21.

Department of Neurology, Hospital Kuala Lumpur, Jalan Pahang, 50586, Kuala Lumpur, Malaysia.

Background: Spinal AVF (SAVF), a potentially treatable cause of myelopathy, remains a challenging diagnosis. Its rarity and non-specific imaging findings often result in misdiagnosis despite a high index of clinical suspicion. The classically described high T2 signal in the spinal cord or prominent vascular flow voids in the intradural space were not infrequently missed on initial imaging, only to be picked up at follow-up imaging after progression of symptoms. Read More

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September 2021

Mannose-binding lectin promotes blood-brain barrier breakdown and exacerbates axonal damage after traumatic brain injury in mice.

Exp Neurol 2021 Sep 20;346:113865. Epub 2021 Sep 20.

Department of Neuroscience and Experimental Therapeutics, Institute for Biomedical Research of Barcelona (IIBB), Spanish National Research Council (CSIC), Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain. Electronic address:

Leukocyte infiltration and blood-brain barrier breakdown contribute to secondary brain damage after traumatic brain injury (TBI). TBI induces neuroimmune responses triggering pathogenic complement activation through different pathways, including the lectin pathway. We investigated mechanisms underlying mannose-binding lectin (MBL)-mediated brain damage focusing on neutrophil infiltration and blood-brain barrier breakdown in a TBI mouse model. Read More

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September 2021

SRI-42127, a novel small molecule inhibitor of the RNA regulator HuR, potently attenuates glial activation in a model of lipopolysaccharide-induced neuroinflammation.

Glia 2021 Sep 17. Epub 2021 Sep 17.

Department of Neurology, The University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA.

Glial activation with the production of pro-inflammatory mediators is a major driver of disease progression in neurological processes ranging from acute traumatic injury to chronic neurodegenerative diseases such as amyotrophic lateral sclerosis and Alzheimer's disease. Posttranscriptional regulation is a major gateway for glial activation as many mRNAs encoding pro-inflammatory mediators contain adenine- and uridine-rich elements (ARE) in the 3' untranslated region which govern their expression. We have previously shown that HuR, an RNA regulator that binds to AREs, plays a major positive role in regulating inflammatory cytokine production in glia. Read More

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September 2021

Can Haptic Stimulation Enhance Music Perception in Hearing-Impaired Listeners?

Authors:
Mark D Fletcher

Front Neurosci 2021 31;15:723877. Epub 2021 Aug 31.

University of Southampton Auditory Implant Service, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, United Kingdom.

Cochlear implants (CIs) have been remarkably successful at restoring hearing in severely-to-profoundly hearing-impaired individuals. However, users often struggle to deconstruct complex auditory scenes with multiple simultaneous sounds, which can result in reduced music enjoyment and impaired speech understanding in background noise. Hearing aid users often have similar issues, though these are typically less acute. Read More

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[Treatment of a patient with acute thoracoabdominal aortic dissection complicated by haemothorax].

Angiol Sosud Khir 2021 ;27(3):140-145

Research Laboratory of Vascular and Hybrid Surgery of the Research Department of Vascular and Interventional Surgery, National Almazov Medical Research Centre, RF Ministry of Public Health, Saint Petersburg, Russia.

Total left-sided haemothorax is a rare and severe complication of acute DeBakey type III aortic dissection. The primary aim of treatment is immediate arrest of haemorrhage and stabilization of the haemodynamic status of the patient. Endovascular isolation of the ruptured thoracic portion of the aorta using a stent graft (TEVAR) has recently become the 'gold standard' in treatment of acute, rupture-complicated aortic dissections of this localization. Read More

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September 2021

Morphine-induced kinase activation and localization in the periaqueductal gray of male and female mice.

J Neurochem 2021 Sep 9. Epub 2021 Sep 9.

Department of Biology, Utah State University, Logan, Utah, USA.

Morphine is a potent opioid analgesic with high propensity for the development of antinociceptive tolerance. Morphine antinociception and tolerance are partially regulated by the midbrain ventrolateral periaqueductal gray (vlPAG). However, the majority of research evaluating mu-opioid receptor signaling has focused on males. Read More

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September 2021

Cutting-edge spectroscopy techniques highlight toxicity mechanisms of copper oxide nanoparticles in the aquatic plant Myriophyllum spicatum.

Sci Total Environ 2021 Aug 31;803:150001. Epub 2021 Aug 31.

Laboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse, France. Electronic address:

Copper oxide nanoparticles (CuO-NPs) have been increasingly released in aquatic ecosystems over the past decades as they are used in many applications. Cu toxicity to different organisms has already been highlighted in the literature, however toxicity mechanisms of the nanoparticulate form remain unclear. Here, we investigated the effect, transfer and localization of CuO-NPs compared to Cu salt on the aquatic plant Myriophyllum spicatum, an ecotoxicological model species with a pivotal role in freshwater ecosystems, to establish a clear mode of action. Read More

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[Imaging in the presurgical evaluation of epilepsy].

Nervenarzt 2021 Sep 7. Epub 2021 Sep 7.

Epilepsie-Zentrum Berlin-Brandenburg, Klinik für Neurologie mit Experimenteller Neurologie, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Deutschland.

While two thirds of patients with epilepsy become seizure-free with antiseizure medications, 30% remain drug-resistant. In drug-resistant focal epilepsy, epilepsy surgery offers an approximately 65% chance of becoming seizure-free; however, for a successful outcome of surgery a seizure focus must be precisely located, for which imaging techniques are essential. In recent years, the proportion of patients with apparently inconspicuous findings in magnetic resonance imaging (MRI) in the presurgical evaluation has increased. Read More

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September 2021

Auricular Vagus Nerve Stimulation Attenuates Lipopolysaccharide Induced Acute Lung Injury by Inhibiting Neutrophil Infiltration and Neutrophil Extracellular Traps Formation.

Shock 2021 Sep 3. Epub 2021 Sep 3.

Department of Pathology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 210023, Nanjing, China Department of Intensive Care Unit, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing 210029, China Department of Critical Care Medicine, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, 758 Hefei Road, Qingdao, Shandong, 266035, China.

Abstract: Vagus nerve stimulation has been shown to exert anti-inflammation activities in sepsis. However, surgical implantation of stimulation devices is performed under general anaesthesia, which limits its clinical application. Auricular vagus nerve stimulation (AVNS) is a minimal invasive technique which delivers electrical currents to the auricular branch of the vagus nerve. Read More

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September 2021

Clonal hematopoiesis, myeloid disorders and BAX-mutated myelopoiesis in patients receiving venetoclax for CLL.

Blood 2021 Sep 1. Epub 2021 Sep 1.

Peter MacCallum Cancer Center, Australia.

The BCL2 inhibitor venetoclax has established therapeutic roles in chronic lymphocytic leukemia (CLL) and acute myeloid leukemia. As BCL2 is an important determinant of survival of both myeloid progenitor and B cells, we investigated whether clinical and molecular abnormalities arise in the myeloid compartment during long-term continuous venetoclax treatment for CLL in 89 patients (87 with relapsed/refractory CLL). Over a median follow-up of 75 (range 21-98) months, persistent cytopenias (³ 1 of neutropenia, thrombocytopenia, anemia) lasting ³4 months and unrelated to CLL occurred in 25 patients (28%). Read More

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September 2021

Lung eosinophils elicited during allergic and acute aspergillosis express RORγt and IL-23R but do not require IL-23 for IL-17 production.

PLoS Pathog 2021 Aug 31;17(8):e1009891. Epub 2021 Aug 31.

Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America.

Exposure to the mold, Aspergillus, is ubiquitous and generally has no adverse consequences in immunocompetent persons. However, invasive and allergic aspergillosis can develop in immunocompromised and atopic individuals, respectively. Previously, we demonstrated that mouse lung eosinophils produce IL-17 in response to stimulation by live conidia and antigens of A. Read More

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Cytokine storm and histopathological findings in 60 cases of COVID-19-related death: from viral load research to immunohistochemical quantification of major players IL-1β, IL-6, IL-15 and TNF-α.

Forensic Sci Med Pathol 2021 Aug 31. Epub 2021 Aug 31.

Department of Anatomical, Histological, Forensic and Orthopaedic Sciences (SAIMLAL), Sapienza University of Rome, Rome, Italy.

This study involves the histological analysis of samples taken during autopsies in cases of COVID-19 related death to evaluate the inflammatory cytokine response and the tissue localization of the virus in various organs. In all the selected cases, SARS-CoV-2 RT-PCR on swabs collected from the upper (nasopharynx and oropharynx) and/or the lower respiratory (trachea and primary bronchi) tracts were positive. Tissue localization of SARS-CoV-2 was detected using antibodies against the nucleoprotein and the spike protein. Read More

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Anti-high mobility group box 1 monoclonal antibody suppressed hyper-permeability and cytokine production in human pulmonary endothelial cells infected with influenza A virus.

Inflamm Res 2021 Aug 29. Epub 2021 Aug 29.

Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.

Objective: High mobility group box-1 (HMGB1) has been reported to be involved in influenza A virus-induced acute respiratory distress syndrome (ARDS). We studied the efficacy of an anti-HMGB1 mAb using an in vitro model of TNF-α stimulation or influenza A virus infection in human pulmonary microvascular endothelial cells (HMVECs).

Methods: Vascular permeability of HMVECs was quantified using the Boyden chamber assay under tumor necrosis factor-α (TNF-α) stimulation or influenza A virus infection in the presence of anti-HMGB1 mAb or control mAb. Read More

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N130, N175 and N207 are N-linked glycosylation sites of duck Tembusu virus NS1 that are important for viral multiplication, viremia and virulence in ducklings.

Vet Microbiol 2021 Oct 25;261:109215. Epub 2021 Aug 25.

Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China. Electronic address:

Duck Tembusu virus (DTMUV) is an emerging mosquito-borne flavivirus that has caused acute egg-drop syndrome in egg-laying ducks. DTMUV nonstructural protein 1 (NS1) contains three potential predicted N-linked glycosylation sites at residues 130, 175 and 207. In this study, we found that mutations at these sites affect the molecular weight of recombinant NS1, as assessed by western blot assays; however, the mutations do not affect their subcellular localization in the cytoplasm, as assessed by colocalization assays. Read More

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October 2021

Localization of SARS-CoV-2 Capping Enzymes Revealed by an Antibody against the nsp10 Subunit.

Viruses 2021 07 29;13(8). Epub 2021 Jul 29.

Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i, Flemingovo nám. 2, 166 10 Prague 6, Czech Republic.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the coronavirus disease-19 pandemic. One of the key components of the coronavirus replication complex are the RNA methyltransferases (MTases), RNA-modifying enzymes crucial for RNA cap formation. Recently, the structure of the 2'- MTase has become available; however, its biological characterization within the infected cells remains largely elusive. Read More

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Lateralization and Bodily Patterns of Segmental Signs and Spontaneous Pain in Acute Visceral Disease: Observational Study.

J Med Internet Res 2021 Aug 27;23(8):e27247. Epub 2021 Aug 27.

Somatosensory and Autonomic Therapy Research, Institute for Neuroradiology, Hannover Medical School, Hannover, Germany.

Background: The differential diagnosis of acute visceral diseases is a challenging clinical problem. Older literature suggests that patients with acute visceral problems show segmental signs such as hyperalgesia, skin resistance, or muscular defense as manifestations of referred visceral pain in somatic or visceral tissues with overlapping segmental innervation. According to these sources, the lateralization and segmental distribution of such signs may be used for differential diagnosis. Read More

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Early (5-Day) Onset of Diabetes Mellitus Causes Degeneration of Photoreceptor Cells, Overexpression of Incretins, and Increased Cellular Bioenergetics in Rat Retina.

Cells 2021 Aug 4;10(8). Epub 2021 Aug 4.

Department of Anatomy, College of Medicine & Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates.

The effects of early (5-day) onset of diabetes mellitus (DM) on retina ultrastructure and cellular bioenergetics were examined. The retinas of streptozotocin-induced diabetic rats were compared to those of non-diabetic rats using light and transmission electron microscopy. Tissue localization of glucagon-like-peptide-1 (GLP-1), exendin-4 (EXE-4), and catalase (CAT) in non-diabetic and diabetic rat retinas was conducted using immunohistochemistry, while the retinal and plasma concentration of GLP-1, EXE-4, and CAT were measured with ELISA. Read More

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Na+/H+ exchangers differentially contribute to midgut fluid sodium and proton concentration in the sea urchin larva.

J Exp Biol 2021 04 15;224(7). Epub 2021 Apr 15.

Institute of Physiology, Christian-Albrechts University of Kiel, Hermann-Rodewaldstraße 5, 24118 Kiel, Germany.

Regulation of ionic composition and pH is a requisite of all digestive systems in the animal kingdom. Larval stages of the marine superphylum Ambulacraria, including echinoderms and hemichordates, were demonstrated to have highly alkaline conditions in their midgut with the underlying epithelial transport mechanisms being largely unknown. Using ion-selective microelectrodes, the present study demonstrated that pluteus larvae of the purple sea urchin have highly alkaline pH (pH ∼9) and low [Na+] (∼120 mmol l-1) in their midgut fluids, compared with the ionic composition of the surrounding seawater. Read More

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Thresholds of polarization vision in octopuses.

J Exp Biol 2021 04 15;224(7). Epub 2021 Apr 15.

Ecology of Vision Group, School of Biological Sciences, University of Bristol, Bristol BS8 1TQ, UK.

Polarization vision is widespread in nature, mainly among invertebrates, and is used for a range of tasks including navigation, habitat localization and communication. In marine environments, some species such as those from the Crustacea and Cephalopoda that are principally monochromatic, have evolved to use this adaptation to discriminate objects across the whole visual field, an ability similar to our own use of colour vision. The performance of these polarization vision systems varies, and the few cephalopod species tested so far have notably acute thresholds of discrimination. Read More

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Distinct intra-arterial clot localization affects tissue-level collaterals and venous outflow profiles.

Eur J Neurol 2021 Aug 23. Epub 2021 Aug 23.

Department of Radiology, Stanford University School of Medicine, Stanford, California, USA.

Background And Purpose: Arterial clot localization affects collateral flow to ischemic brain in patients with acute ischemic stroke due to large vessel occlusion (AIS-LVO). We determined the association between vessel occlusion locations, tissue-level collaterals (TLC), and venous outflow (VO) profiles and their impact on good functional outcomes.

Methods: We conducted a multicenter retrospective cohort study of consecutive AIS-LVO patients who underwent thrombectomy triage. Read More

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Digital Hybrid Model Preparation for Virtual Planning of Reconstructive Dentoalveolar Surgical Procedures.

J Vis Exp 2021 Aug 5(174). Epub 2021 Aug 5.

Department of Periodontology, Semmelweis University.

Virtual, hybrid three-dimensional (3D) model acquisition is presented in this article, utilizing the sequence of radiographic image segmentation, spatial registration, and free-form surface modeling. Firstly cone-beam computed tomography datasets were reconstructed with a semi-automatic segmentation method. Alveolar bone and teeth are separated into different segments, allowing 3D morphology, and localization of periodontal intrabony defects to be assessed. Read More

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Diagnostic performance of an algorithm for automated large vessel occlusion detection on CT angiography.

J Neurointerv Surg 2021 Aug 19. Epub 2021 Aug 19.

Radiology & Nuclear Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands.

Background: Machine learning algorithms hold the potential to contribute to fast and accurate detection of large vessel occlusion (LVO) in patients with suspected acute ischemic stroke. We assessed the diagnostic performance of an automated LVO detection algorithm on CT angiography (CTA).

Methods: Data from the MR CLEAN Registry and PRESTO were used including patients with and without LVO. Read More

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Biological and small molecule strategies in migraine therapy with relation to the CGRP family of peptides.

Br J Pharmacol 2021 Aug 19. Epub 2021 Aug 19.

Departments of Internal Medicine, Lund University Hospital, Lund, Sweden.

Migraine is one of the most common of neurological disorders with a global prevalence of up to 15%. One in five migraineurs have frequent episodic or chronic migraine requiring prophylactic treatment. In recent years, specific pharmaceutical treatments targeting calcitonin gene-related peptide (CGRP) signalling molecules have provided safe and effective treatments; monoclonal antibodies for prophylaxis and gepants for acute therapy. Read More

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BAG1 down-regulation increases chemo-sensitivity of acute lymphoblastic leukaemia cells.

J Cell Mol Med 2021 Sep 17;25(18):9060-9065. Epub 2021 Aug 17.

Neuroblastoma Laboratory, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy.

BCL2-associated athanogene-1 (BAG1) is a multi-functional protein that is found deregulated in several solid cancers and in paediatric acute myeloid leukaemia. The investigation of BAG1 isoforms expression and intracellular localization in B-cell acute lymphoblastic leukaemia (B-ALL) patient-derived specimens revealed that BAG1 levels decrease during disease remission, compared to diagnosis, but drastically increase at relapse. In particular, at diagnosis both BAG1-L and BAG1-M isoforms are mainly nuclear, while during remission the localization pattern changes, having BAG1-M almost exclusively in the cytosol indicating its potential cytoprotective role in B-ALL. Read More

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September 2021

RANBP2 mutation causing autosomal dominant acute necrotizing encephalopathy attenuates its interaction with COX11.

Neurosci Lett 2021 Oct 13;763:136173. Epub 2021 Aug 13.

Department of Developmental Medical Sciences, School of International Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.

Purpose: Autosomal dominant acute necrotizing encephalopathy (ADANE) is caused by missense mutations in the gene encoding Ran-binding protein 2 (RANBP2), a nuclear pore protein regulating mitochondrial localization and function. Previous studies have found that RANBP2 binds to COX11 and suppresses its inhibitory activity over hexokinase1. To further elucidate mitochondrial dysfunction in ADANE, we analyzed the interaction between mutated RANBP2 and COX11. Read More

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October 2021

Increased Susceptibility and Intrinsic Apoptotic Signaling in Neurons by Induced HDAC3 Expression.

Invest Ophthalmol Vis Sci 2021 08;62(10):14

Department of Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison WI, United States.

Purpose: Inhibition or targeted deletion of histone deacetylase 3 (HDAC3) is neuroprotective in a variety neurodegenerative conditions, including retinal ganglion cells (RGCs) after acute optic nerve damage. Consistent with this, induced HDAC3 expression in cultured cells shows selective toxicity to neurons. Despite an established role for HDAC3 in neuronal pathology, little is known regarding the mechanism of this pathology. Read More

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