688,689 results match your criteria Acta Mathematica Hungarica[Journal]

Photoluminescence and optical temperature measurement of Mn/Er co-activated double perovskite phosphor through site-advantageous occupation.

Spectrochim Acta A Mol Biomol Spectrosc 2021 Apr 9;259:119797. Epub 2021 Apr 9.

Department of Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.

Because traditional methods based on thermal coupling energy level temperature measurement have large errors, a new temperature sensing strategy is proposed to attain strong sensitivity and excellent signal resolution ability. The rare-earth and also transition metal ions with poles apart thermal quenching channels are used as dual emission centers to find a suitable host to achieve high-efficiency dual-mode emission. In this work, a string of phosphors with NaLaMgWO (NLMW) as the host, the single-doped and double-doped Mn and Er phosphors were adopted by the traditional high temperature solid-state reaction method. Read More

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Exploring the toxic interactions between Bisphenol A and glutathione peroxidase 6 from Arabidopsis thaliana.

Spectrochim Acta A Mol Biomol Spectrosc 2021 Apr 30;259:119891. Epub 2021 Apr 30.

Shandong Province Key Laboratory of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China. Electronic address:

As primary industrial raw material, the widespread usage of bisphenol A (BPA) has resulted in sustained release and accumulation in the environment. Besides its endocrine-disrupting character, BPA was reported to generate excessive reactive oxygen species (ROS). However, the potential toxic mechanisms of the BPA-induced oxidative damage to plants were poorly understood. Read More

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Fabricating multifunctional low-toxicity ratiometric fluorescent probe for individual detection of Cu/glutamate and continuous sensing for glutamate via Cu-based platform.

Spectrochim Acta A Mol Biomol Spectrosc 2021 May 1;259:119892. Epub 2021 May 1.

College of Chemistry, Liaoning University, 66 Chongshan Middle Road, Shenyang, Liaoning 110036, People's Republic of China. Electronic address:

Herein, a multifunctional ratiometric fluorescent (RF) probe Fe-MIL-88NH@RhB was fabricated for individual detection of CuGlu and continuous sensing of Glu based on unique coordination principle by encapsulating RhB into the porous of metal-organic-framework-Fe-MIL-88NH. Designed Fe-MIL-88NH@RhB platform could selectively identify Cu(II)/Glu accompanying a turn-off/turn-on fluorescent behavior with good linearity. Moreover, if the Fe-MIL-88NH@RhB/Cu is treated with Glu continuously, the quenching fluorescence of this platform (after Cu sensing at blue emission) would be further in turn restored. Read More

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From incidental learning to explicit memory: The role of sleep after exposure to a serial reaction time task.

Acta Psychol (Amst) 2021 May 10;217:103325. Epub 2021 May 10.

Departamento de Psicología, Universidad Nacional de Colombia, Bogotá, Colombia. Electronic address:

This laboratory study explores whether sleep has different effects on explicit (recognition-based) and implicit (priming-based) memory. Eighty-nine healthy participants were randomly assigned to one of two experimental conditions: sleep or wake. All participants were previously exposed to an incidental learning session involving a 12-element deterministic second-order conditional sequence embedded in a serial reaction time task. Read More

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Interaction mechanism between location and sequence in letter cognition.

Acta Psychol (Amst) 2021 May 10;217:103329. Epub 2021 May 10.

Department of Psychology, Shanghai Normal University, China. Electronic address:

A previous study used days as a sequence symbol to investigate the interaction mechanism between location and sequence in sequence symbol cognition; the study findings suggested that the spatial stimulus-response compatibility effect and the Simon effect could not co-exist with the SNARC-like effect when processing sequence symbols. The previous study did not include the influence of the difficulty of identifying sequence symbols on the Simon effect in the investigation, so it is unclear whether the conclusion about processing sequence symbols with considerable identification difficulty can be extended to the processing of sequence symbols with less identification difficulty. Therefore, the present study explored letters that have a low level of identification difficulty to investigate the interaction mechanism between location and sequence in sequence symbol cognition. Read More

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A six-factor structure of individual variation in the tendencies to become sleepy and to sleep at different times of the day.

Acta Psychol (Amst) 2021 May 10;217:103327. Epub 2021 May 10.

Laboratory of Nanobiotechnology and Biophysics of the North-Caucasus Federal University, Stavropol, Russia.

A multidimensional approach has been previously applied for modeling and assessment of individual differences in the ability to sleep or to stay awake at certain clock hours. More recently the 19 time-point Visuo-verbal Judgment Task (VJT) has been proposed to predict changes in sleepiness level from the morning hours to the next day afternoon. The dimensionality of the VJT has not been explored so far. Read More

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Regulation of macrophage functions by FABP-mediated inflammatory and metabolic pathways.

Biochim Biophys Acta Mol Cell Biol Lipids 2021 May 10;1866(8):158964. Epub 2021 May 10.

Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA. Electronic address:

Macrophages are almost everywhere in the body, where they serve pivotal functions in maintaining tissue homeostasis, remodeling, and immunoregulation. Macrophages are traditionally thought to differentiate from bone marrow-derived hematopoietic stem cells (HSCs). Emerging studies suggest that some tissue macrophages at steady state originate from embryonic precursors in the yolk sac or fetal liver and are maintained in situ by self-renewal, but bone marrow-derived monocytes can give rise to tissue macrophages in pathogenic settings, such as inflammatory injuries and cancer. Read More

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Assessment of predictive performance of caries risk assessment models based on a systematic review and meta-analysis.

J Dent 2021 May 10:103664. Epub 2021 May 10.

Department of Social Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amasterdam and VU University, the Netherlands.

Objectives: To assess the predictive performance of caries risk assessment (CRA) models for prediction of caries increment for individuals based on a systematic review and meta-analyses.

Data/sources: We included external validation studies assessing the predictive performance of CRA models for prediction of caries increment for individuals, using discrimination and calibration as the outcome parameters. PubMed, EMBASE, and CINAHL were searched electronically on 10 September 2020 to identify prediction modeling studies on external validation of CRA models. Read More

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Diagnosis of Vertical Root Fractures by Cone Beam Computed Tomography in Root Filled Teeth with Confirmation by Direct Visualization- A Systematic Review and Meta-Analysis.

J Endod 2021 May 10. Epub 2021 May 10.

Department of Conservative Dentistry & Endodontics, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy Of Higher Education, Chennai 600095, Tamil Nadu, India. Electronic address:

Aim: The purpose of this review was to determine the diagnostic accuracy of CBCT in detecting vertical root fracture in root filled teeth when compared to a reference standard (direct visualization).

Methods: Electronic searches were performed in Medline, Scopus, Cochrane and Grey Literature for English language articles till June 2020. Prospective and retrospective clinical studies using CBCT to diagnose VRF in root filled teeth were included. Read More

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Nephrogenic syndrome of inappropriate antidiuresis - an ethnically, genetically and phenotypically diverse disorder: First report in a Chinese adult and review of published cases.

Clin Chim Acta 2021 May 10. Epub 2021 May 10.

Department of Pathology, Queen Elizabeth Hospital, Hong Kong.

Background: Nephrogenic syndrome of inappropriate antidiuresis (NSIAD) is a rare inherited disorder characterised by hyponatraemia. To date, most reported cases are Caucasians with gain-of-function variants in AVPR2, an X-linked gene which encodes the vasopressin V2 receptor (V2R). Recently, germline gain-of-function variants in the stimulatory G protein α-subunit (Gsα) were reported to cause dominantly inherited NSIAD. Read More

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Application of the SMALP technology to the isolation of GPCRs from low-yielding cell lines.

Biochim Biophys Acta Biomembr 2021 May 10:183641. Epub 2021 May 10.

Department of Biopharmacy, Medical University of Lublin, ulica W. Chodźki 4a, Lublin, Poland. Electronic address:

The ability of styrene-maleic acid (SMAc) co-polymers to spontaneously insert into biological membranes can be exploited to extract G protein-coupled receptors (GPCRs) embedded in styrene-maleic acid lipid particles (SMALPs), preserving the native environment around the protein and thus enhancing the feasibility of functional studies. So far, the SMALP technology has been primarily employed on non-mammalian cells and protocols are not optimized for adherent human cell lines, which cannot be harvested in large amounts. In this work, a fine investigation of key parameters affecting the formation of SMALPs was undertaken with the purpose of maximizing the yield of extraction of a recombinant form of human β-adrenergic receptor (rhβAR) from HEK293T cells. Read More

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lncRNA NEAT1 prompts autophagy and apoptosis in MPTP-induced Parkinson's disease by impairing miR-374c-5p.

Acta Biochim Biophys Sin (Shanghai) 2021 May 13. Epub 2021 May 13.

Department of Neurology, The First Affiliated Hospital of South University of Science and Technology, The Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518000, China.

Long non-coding RNAs (lncRNAs) play biological roles in brain disorder and neurodegenerative diseases. As the functions of lncRNA NEAT1 in Parkinson's disease (PD) remain unknown, in the present study, we aimed to explore the roles and underlying molecular mechanisms of NEAT1 in PD. A PD mouse model induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and a cell model of SH-SY5Y induced by N-methyl-4-phenylpyridinium (MPP+) were established. Read More

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Acute onset urinary retention and neurogenic bladder: an unusual presenting feature of childhood acute myeloid leukemia.

Acta Neurol Belg 2021 May 13. Epub 2021 May 13.

Department of Radiodiagnosis and Imaging, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, 249203, India.

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On Predation-Commensalism Processes as Models of Bi-stability and Constructive Role of Systemic Extinctions.

Acta Biotheor 2021 May 13. Epub 2021 May 13.

Sorbonne Université, UPMC Univ Paris 06, and CNRS, UMR 7598, Laboratoire Jacques-louis Lions, 75005, Paris, France.

We propose a mathematical model for a class of predator-prey systems more complex than the usual one, involving a commensalism effect consisting in an influence of the predator on the sustainability of the prey. This effect induces interesting new features, including bi-stability (two attractors with disjoint attraction basins). The question of the possibility of reaching a certain attractor starting from initial conditions with a small population of predators, which presents an interest from the vewpoint of the onset of the predator in evolution, is addressed. Read More

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A stereotactic frame-based drill guide-aided setting for laser interstitial thermal therapy.

Acta Neurochir (Wien) 2021 May 13. Epub 2021 May 13.

Department of Neurosurgery, University Hospital Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland.

Background: Magnetic resonance imaging (MRI)-guided laser interstitial thermal therapy (MRIgLITT) was demonstrated to be a viable neurosurgical tool. Apart from its variety of indications, different operative and technical nuances exist. In the present report, for the first time, the use and ability of a traditional Riechert-Mundinger (RM) stereotactic system combined with a novel drill guide kit for MRIgLITT are described. Read More

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Prenatal nicotine exposure was associated with long-term impact on the cardiovascular system and regulation-review.

Acta Paediatr 2021 May 13. Epub 2021 May 13.

Pediatric Cardiology Unit, Karolinska University Hospital, Department of Women´s and Child´s Health, Karolinska Institute, Karolinska, Sweden.

Aim: The aim of this structured review was to discuss knowledge of nicotine use during pregnancy and long-term effects on children's cardiovascular function.

Methods: PubMed and MEDLINE were searched for original papers that covered various forms of nicotine exposure during pregnancy and this identified 314 papers published in English from inception of the databases to 1 March 2021. The research focus was prenatal exposure that had long-term effects on the cardiovascular system. Read More

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Non-pharmacological therapies for pain management in Parkinson's disease: A systematic review.

Acta Neurol Scand 2021 May 13. Epub 2021 May 13.

Neurology, Parkinson's Clinic of Eastern Toronto & Movement Disorders Centre, Toronto, ON, Canada.

Among the various non-motor symptoms of Parkinson's disease (PD), pain is often cited as the most common and debilitating feature. Currently, the literature contains gaps in knowledge with respect to the various forms of treatment available, particularly non-pharmacological therapies. Thus, the purpose of this systematic review is to provide an examination of the literature on non-pharmacological therapies for pain in PD. Read More

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Pelvic tilt impacts cup orientation on CT: how accurate is the gold standard?

Acta Radiol 2021 May 13:2841851211009466. Epub 2021 May 13.

Department of Orthopaedic Surgery, Regensburg University Medical Center, Bad Abbach, Germany.

Background: Computed tomography (CT) is the gold standard for the accurate measurement of cup inclination and anteversion in total hip arthroplasty (THA). However, functional cup position strongly depends on the tilt of the pelvis and thus pelvic tilt in the supine position on the CT table harbors the risk of misinterpretation.

Purpose: To evaluate the influence of pelvic tilt on cup measurements in postoperative CT scans. Read More

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Comparison of small incision lenticule extraction and transepithelial photorefractive keratectomy in terms of visual quality in myopia patients.

Acta Ophthalmol 2021 May 12. Epub 2021 May 12.

Wenzhou Medical University Eye Hospital, Wenzhou, China.

Purpose: To comprehensively compare visual quality between small incision lenticule extraction (SMILE) and transepithelial photorefractive keratectomy (tPRK).

Methods: Sixty-four eyes in the SMILE group and 42 eyes in the tPRK group were enrolled in this study. In both groups, visual acuity, manifest refraction, higher-order aberrations (HOAs), contrast sensitivity (CS) at four spatial frequencies (3, 6, 12, 18 c/d) under three conditions (photopic, low glare, high glare), the cut-off value of the modulation transfer function (MTFcut-off), the objective scatter index (OSI) and the Strehl ratio (SR) were measured preoperatively and 1, 3 and 6 months postoperatively. Read More

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Evaluation of head and neck cancer education at European dental schools.

Eur J Dent Educ 2021 May 12. Epub 2021 May 12.

Centre for Special Care Dentistry (Stichting Bijzondere Tandheelkunde), Amsterdam, the Netherlands.

Aim: In Europe approximately 150.000 patients are diagnosed with head and neck cancer annually. Dentists play an important role in prevention and detection at an early stage when survival rates are best. Read More

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Effect of Relative Age on Childhood Mental Health: A Cohort of 9,548,393 Children and Adolescents.

Acta Psychiatr Scand 2021 May 12. Epub 2021 May 12.

Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan.

Background: The effect of relative age on the diagnoses of attention deficit hyperactivity disorder (ADHD), disruptive behavior disorder (DD), anxiety disorder, and depressive disorder and the prescription for ADHD and antidepressant medications remains unclear.

Aim: To clarify the impact of relative age in a school year with the diagnoses of ADHD, DD, anxiety disorder and depressive disorder and the prescription for ADHD and antidepressant medications.

Methods: The annual cutoff birthdate for entry to school in Taiwan is August 31. Read More

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First Record of the Sinus Worm Skrjabingylus petrowi (Nematoda: Metastrongyloidea) in a Pine Marten Martes martes from Poland.

Acta Parasitol 2021 May 12. Epub 2021 May 12.

Musée National D'Histoire Naturelle, 2160, Luxembourg, Luxembourg.

Background: Skrjabingylus spp. are nematodes that parasitize in the frontal and nasal sinuses of small mustelids. In Europe, the two species S. Read More

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Structural, Spectroscopic, Electrochemical, and Magnetic Properties for Manganese(II) Triazamacrocyclic Complexes.

Inorganica Chim Acta 2019 Feb 13;486:546-555. Epub 2018 Nov 13.

Department of Chemistry, Oakland University, Rochester, MI 48309-4477, USA.

We report the synthesis of [Mn(tacud)](OTf) () (tacud = 1,4,8-triazacycloundecane), [Mn(tacd)](OTf) () (tacd = 1,4,7-triazacyclodecane), and [Mn(tacn)](OTf) () (tacn = 1,4,7-triazacyclononane). Electrochemical measurements on the Mn redox couple show that complex has the largest anodic potential of the set ( = 1.16 V vs NHE, Δ = 106 mV) compared to ( = 0. Read More

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February 2019

Cinnamaldehyde induces autophagy-mediated cell death through ER stress and epigenetic modification in gastric cancer cells.

Tae Woo Kim

Acta Pharmacol Sin 2021 May 12. Epub 2021 May 12.

Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea.

Previous reports suggested that cinnamaldehyde (CA), the bioactive ingredient in Cinnamomum cassia, can suppress tumor growth, migratory, and invasive abilities. However, the role and molecular mechanisms of CA in GC are not completely understood. In the present study, we found that CA-induced ER stress and cell death via the PERK-CHOP axis and Ca release in GC cells. Read More

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Tau isoforms are differentially expressed across the hippocampus in chronic traumatic encephalopathy and Alzheimer's disease.

Acta Neuropathol Commun 2021 May 12;9(1):86. Epub 2021 May 12.

VA Boston Healthcare System, 150 S. Huntington Ave, Boston, MA, 02130, USA.

Chronic traumatic encephalopathy (CTE) is a progressive neurodegenerative disease, characterized by hyperphosphorylated tau, found in individuals with a history of exposure to repetitive head impacts. While the neuropathologic hallmark of CTE is found in the cortex, hippocampal tau has proven to be an important neuropathologic feature to examine the extent of disease severity. However, the hippocampus is also heavily affected in many other tauopathies, such as Alzheimer's disease (AD). Read More

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The degree of astrocyte activation is predictive of the incubation time to prion disease.

Acta Neuropathol Commun 2021 May 12;9(1):87. Epub 2021 May 12.

Center for Biomedical Engineering and Technology, University of Maryland School of Medicine, 111 S. Penn St, Baltimore, MD, 21201, USA.

In neurodegenerative diseases including Alzheimer's, Parkinson's and prion diseases, astrocytes acquire disease-associated reactive phenotypes. With growing appreciation of their role in chronic neurodegeneration, the questions whether astrocytes lose their ability to perform homeostatic functions in the reactive states and whether the reactive phenotypes are neurotoxic or neuroprotective remain unsettled. The current work examined region-specific changes in expression of genes, which report on astrocyte physiological functions and their reactive states, in C57Black/6J mice challenged with four prion strains via two inoculation routes. Read More

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Binding studies of known molecules with acetylcholinesterase and bovine serum albumin: A comparative view.

Spectrochim Acta A Mol Biomol Spectrosc 2021 Apr 19;259:119856. Epub 2021 Apr 19.

Department of Physics, PSG College of Arts and Science, Coiambatore 641014, India.

The interactions between selected molecules (piperine, tacrine, curcumin and silibinin) and proteins (acetylcholinesterase and bovine serum albumin) were investigated by Fluorescence spectroscopy, molecular docking, molecular dynamics, free energy calculation and non-covalent interaction analysis. These binding characteristics are of huge interest for understanding pharmacokinetic mechanism of the target molecules. The steady-state emission spectrum results showed that presence of static quenching mode for piperine, tacrine, curcumin, silibinin molecules with BSA and AChE complexes separately and this excitation-emission matrix analysis suggest that formation of ground-state complex between piperine, tacrine, curcumin, silibinin drugs and both BSA, AChE protein molecules. Read More

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Dynamically crosslinked polydimethylsiloxane-based polyurethanes with contact-killing antimicrobial properties as implantable alloplasts for urological reconstruction.

Acta Biomater 2021 May 9. Epub 2021 May 9.

Materials Research Centre, Indian Institute of Science, Bangalore-560012, India; Center for Biosystems Science and Engineering, Indian Institute of Science, Bangalore-560012, India. Electronic address:

A large population of patients is reported to suffer from urinary bladder-associated irreversible physiological disorders, rationalizing a continuous surge for structural and functional substitutes of urinary tissues, including ureters, bladder-wall, and urethra. The current gold standard for bladder reconstruction, an autologous gastrointestinal graft, is proven not to be an ideal substitute in the clinic. While addressing this unmet clinical need, a unique set of antimicrobial polydimethyl siloxane-modified polyurethanes (TPU/PDMS) is designed and assessed for its potential application as a urological implant. Read More

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Sindbis virus infection of mosquito species in the wetlands of northwestern Iran and modeling the probable ecological niches of SINV vectors in the country.

Acta Trop 2021 May 9:105952. Epub 2021 May 9.

Department of Medical Entomology and Vector Control, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran; Social Determinants of Health, Research Center, Urmia University of Medical Sciences, Urmia, Iran. Electronic address:

Sindbis virus (SINV) and Chikungunya virus (CHIKV) are among the most widely spread mosquito-borne viruses worldwide. Due to the key role of mosquitoes in the transmission cycle of vector-borne diseases, models such as Maximum Entropy (MaxEnt) have been used in recent years to predict the environmental suitability and ecological niches of mosquito vectors. Infection of three mosquito species (Anopheles maculipennis s. Read More

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Bioinformatic prediction and identification of immunogenic epitopes of the antigenic 14-3-3 protein of Echinococcus multilocularis.

Acta Trop 2021 May 9:105955. Epub 2021 May 9.

Research Center for High Altitude Medicine, Qinghai University, Xining 810001, China; Qinghai-Utah Joint Research Key Lab for High Altitude Medicine, Xining 810001, China; Basic Medicine Department, Qinghai University, Xining 810001, China. Electronic address:

Introduction: Alveolar echinococcosis is a high-risk parasitic disease caused by the larval stage of Echinococcus multilocularis. The study aimed to predict and identify the dominant Th1/Th2 and B cell epitopes of the antigen protein 14-3-3 beta:alpha from Echinococcus multilocularis.

Methods: A comparison of the four amino acid sequences of 14-3-3 beta:alpha was respectively derived from Echinococcus multilocularis, Rattus norvegicus, Canis lupus familiaris, and Homo sapiens was carried out by CLUSTALW to provide a basis for excluding similar epitopes. Read More

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