2,293,429 results match your criteria: "Materials & Energy Research Center MERC[Affiliation]"

Objectives: We aimed to characterize a craniofacial skeletal phenotype (CSP) of adult obstructive sleep apnea (OSA) patients from a multidimensional perspective, exploring the impact of transverse skeletal discrepancy (TSD) on multivariable polysomnographic profiles.

Materials And Methods: This retrospective, cross-sectional study included 102 adult OSA patients. Sagittal, vertical, and transverse skeletal patterns were categorized on the cone beam computed tomography images.

View Article and Find Full Text PDF

Objectives: Hepatocellular carcinoma (HCC) represents the third-most prevalent cancer in humans worldwide. The current study's objective is to search for the potentiality of H. Wendl () leaf extract in a nanoemulsion (NE) form in enhancing radiotherapy against HCC induced in rats using diethylnitrosamine (DEN).

View Article and Find Full Text PDF

Introduction: To report the progress of the human living uterus transplant research project in Singapore.

Material And Methods: The uterus transplant research project began in 2012 with a collaboration between the Swedish and Singapore teams. Ethics approval was obtained from the SingHealth Centralised Institutional Review Board, the SingHealth Transplant and the Singapore General Hospital Biomedical Ethics Committee to perform 5 uterus transplant procedures in a collaborative multi-site research study at the Singapore General Hospital.

View Article and Find Full Text PDF

Re-evaluating evidence for giant genomes in amoebae.

Genet Mol Biol

December 2024

Universidade de São Paulo, Instituto de Biociências, Departamento de Zoologia, São Paulo, SP, Brazil.

Here we reassess available evidence for the long-held misconception of amoebae possessing exceptionally large genomes. Traditionally, estimates relied on inaccurate methods like DNA weight measurements, leading to inflated sizes. These methods failed to account for contaminating DNA from prey, endosymbionts, and intrinsic genomic features like ribosomal operon amplification.

View Article and Find Full Text PDF

Background: Multifunctional fluorescent probes have attracted much attention due to their wide range of applications and high utilization. In this study, a multifunctional fluorescent probe (E)-3-(4-(7-(4-(diphenylamino)phenyl)benzo[c] [1,2,5]thiadiazol-4-yl)phenyl)acrylic acid (TBAC) based on triphenylamine was designed and synthesized.

Results: The TBAC probe provided excellent aggregation-induced emission (AIE) performance and could be used as a fluorescent ink for printing.

View Article and Find Full Text PDF

Nickel-Catalyzed Selective Reduction of Carbon Monoxide with Magnesium Alkyl Compounds.

Chemistry

January 2025

Soochow University, College of Chemistry, Chemical Engineering and Materials Science, 199 Ren-ai Road, 215123, Suzhou, CHINA.

Research on CO activation and homologation is pivotal for promoting sustainable chemistry and the construction of Cn molecular blocks. This work reports the nickel-catalyzed reduction of CO by magnesium alkyl compounds utilizing a bimetallic Mg/Ni synergistic strategy. The exposure of β-diketiminato ligand-supported magnesium monoalkyl compounds LMgR (L = [(DippNCMe)2CH]-, Dipp = 2,6-iPr2C6H3; R = nBu, CH3, C5H9) to 1 bar of CO in the presence of 10 mol% Ni(COD)2 (COD: 1,5-cyclooctadiene) selectively afforded the CO single-insertion product [LMg(CHO)C5H8], the dimerization product [(LMg)2(μ-C2O2)(CH3)2], and the linear trimerization product [(LMg)2(μ-C3O3)(nBu)2], respectively, depending on the R group.

View Article and Find Full Text PDF

PrP Glycoprotein Is Indispensable for Maintenance of Skeletal Muscle Homeostasis During Aging.

J Cachexia Sarcopenia Muscle

February 2025

Department of Bioactive Material Sciences, Research Center of Bioactive Materials, Jeonbuk National University, Jeonju, Republic of Korea.

Background: The cellular prion protein (PrP), a glycoprotein encoded by the PRNP gene, is known to modulate muscle mass and exercise capacity. However, the role of PrP in the maintenance and regeneration of skeletal muscle during ageing remains unclear.

Methods: This study investigated the change in PrP expression during muscle formation using C2C12 cells and evaluated muscle function in Prnp wild-type (WT) and knock-out (KO) mice at different ages (1, 9 and 15 months).

View Article and Find Full Text PDF

Preclinical and First-In-Human Imaging of Novel [F]F-FAPI-FUSCC-07 Tracer: Comparative Prospective Study with [F]F-FAPI-42 and [F]F-FAPI-74.

Mol Pharm

January 2025

Department of Nuclear Medicine, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.

This study aimed to develop and evaluate a novel fibroblast activation protein (FAP)-specific tracer, fluorine-18-labeled fibroblast activation protein inhibitor-FUSCC-07 ([F]F-FAPI-FUSCC-07), for use in both preclinical and clinical settings. Preclinical evaluations were conducted to assess the stability and partition coefficient of [F]F-FAPI-FUSCC-07. Experiments involving human glioma U87MG cells demonstrated its cellular uptake and inhibitory properties.

View Article and Find Full Text PDF

What makes β-NaYF:Er,Yb such a successful luminescent thermometer?

Nanoscale

January 2025

Inorganic Photoactive Materials, Institute of Inorganic Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.

Luminescence thermometry has emerged as a promising approach for remote, non-invasive temperature sensing at the nanoscale. One of the simplest approaches in that regard is single-ion luminescence Boltzmann thermometry that exploits thermal coupling between two radiatively emitting levels. The working horse example for this type of luminescence thermometry is undoubtedly the green-emitting upconversion phosphor β-NaYF:Er,Yb exploiting the thermal coupling between the two excited H and S levels of Er for this purpose.

View Article and Find Full Text PDF

Background: Alopecia X (AX) is a common noninflammatory alopecic condition of Pomeranian dogs with an unknown cause. While a genetic aetiology is suspected, no current tests can predict the development of this disorder or confirm the aetiology. Therefore, identifying potential risk indicators for the development of AX would be of value in this breed.

View Article and Find Full Text PDF

Nanostructure engineering for ferroelectric photovoltaics.

Nanoscale

January 2025

Research School of Chemistry, The Australian National University, Canberra, ACT 2601, Australia.

Ferroelectric photovoltaics have attracted increasing attention since their discovery in the 1970s, due to their above-bandgap photovoltage and polarized-light-dependent photocurrent. However, their practical applications have been limited by their weak visible light absorption and low photoconductivity. Intrinsic modification of the material, such as bandgap tuning through chemical doping, has proven effective, but usually leads to the degradation of ferroelectricity.

View Article and Find Full Text PDF

Polarization-Independent High-Q Phase Gradient Metasurfaces.

Nano Lett

January 2025

Department of Electrical & Systems Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States.

Dielectric metasurfaces have emerged as an unprecedented platform for precise wavefront manipulation at subwavelength scales with nearly zero loss. When aiming at dynamic applications such as AR/VR and LiDAR, high-quality factor (high-Q) phase gradient metasurfaces have emerged as a way to boost weak light-material interactions in flat-optical components. However, resonant features are naturally tied to polarization, limiting devices to operating on a single polarization state, which reduces the efficiency and adaptability of wave-shaping.

View Article and Find Full Text PDF

Light metal-based nanomaterials are widely used for energy storage due to their high energy density and surface-to-volume ratio. However, their high reactivity is paradoxically both the source of advantageous properties and a hurdle to the fabrication of stable nanostructures. Here, we demonstrate the formation of nanoporous Mg via chemical redox agent-driven dealloying, which ensures minimized surface passivation and results in fine nanostructures with <50 nm of interconnected metallic ligament despite the labile chemical properties of Mg.

View Article and Find Full Text PDF

Chemiluminescence offers ultrasensitive imaging for the diagnosis of a variety of diseases by removing the interference from excitation light sources. Here, we prepared two chemiluminescent metal-organic frameworks (Mn-ADA and Zn-ADA) by using (2,2')-3,3'-(anthracene-9,10-diyl)diacrylic acid (ADA) as a ligand. In Mn-ADA and Zn-ADA, the Mn atoms and Zn atoms are six-coordinated and eight-coordinated, respectively, and their frameworks are different in spatial structure.

View Article and Find Full Text PDF

Background/purpose: Dual-cure resin-cements are used for various dental restorations. However, whether the curing modes of these resin-cements influence gingival inflammation remains unclear. Hence, herein, we evaluated the effects of dual-cure resin-cement curing modes on gingival cytotoxicity and inflammatory responses.

View Article and Find Full Text PDF

Background/purpose: Heat stress is essential for improving the efficacy of mesenchymal stem cell (MSC)-based regeneration medicine. However, it is still unclear whether and how heat stress influences the differentiation of stem cells from apical papilla (SCAPs). This research aimed to explore the potential mechanism of glucose-regulated protein 78 (GRP78) in regulating differentiation under heat stress in SCAPs.

View Article and Find Full Text PDF

Background/purpose: Oral squamous cell carcinoma (OSCC) is a common malignancy often associated with poor prognosis due to chemoresistance. In this study, we investigated whether arecoline, a major alkaloid in betel nuts, can stimulate aldo-keto reductase family 1 member B10 (AKR1B10) levels in OSCC, promoting cancer stemness and leading to resistance to cisplatin (CDDP)-based chemotherapy.

Materials And Methods: Gain- and Loss- of AKR1B10 functions were analyzed using WB and q-PCR of OSCC cells.

View Article and Find Full Text PDF

Background/purpose: This study analyzed the clinical and imaging features of lingual mandibular bone depression (LMBD) in the anterior mandible, aiming to prevent misdiagnosis and unnecessary surgical procedures.

Materials And Methods: The patients who visited a university dental hospital for painless radiolucency in the anterior mandible from January 2010 to December 2022 were retrospectively reviewed. Twelve cases of LMBD in the anterior mandible that are confirmed by biopsy or long-term follow-up were identified.

View Article and Find Full Text PDF

Background/purpose: Oral submucous fibrosis (OSF) is a premalignant condition of the oral cavity, and its pathogenesis remains largely unknown. A multitude of non-coding RNAs are aberrantly expressed in OSF, and their implication for the development of OSF is a matter meriting investigation.

Materials And Methods: The functional role of long non-coding RNA NCK1-AS1 in myofibroblast activation of fibrotic buccal mucosal fibroblasts (fBMFs) derived from OSF tissues was assessed.

View Article and Find Full Text PDF

Background/purpose: Bone reconstruction in the maxillofacial region typically relies on autologous bone grafting, which presents challenges, including donor site complications and graft limitations. Recent advances in tissue engineering have identified highly pure and proliferative dedifferentiated fat cells (DFATs) as promising alternatives. Herein, we explored the capacity for osteoblast differentiation and the osteoinductive characteristics of extracellular vesicles derived from DFATs (DFAT-EVs).

View Article and Find Full Text PDF

Background/purpose: The occurrence of post-vital pulp therapy (VPT) symptoms is perplexing for dentists, and root canal treatment (RCT) is preferred for such conditions. Furthermore, managing post-VPT symptoms, rather than performing RCT, would preserve pulp vitality and enhance VPT outcomes. This study aimed to evaluate the efficacy of VPT retrials in preserving pulp vitality and substituting RCT in teeth with post-VPT symptoms.

View Article and Find Full Text PDF

Background/purpose: The extract of the soft coral has shown an anti-cancer activity in various cancer cells. However, its effect on the oral squamous cell carcinoma cell (OSCC) lines remains unclear. The purpose of this study is to investigate the anti-cancer effects of the extract of (C127) on the OSCC cells.

View Article and Find Full Text PDF

Relationship between oral health literacy and changes in self-assessment of oral health during COVID-19.

J Dent Sci

January 2025

Department of Oral Care for Systemic Health Support, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.

Background/purpose: Health literacy is thought to play a major role in implementing health behaviors, such as preventing coronavirus disease 2019 (COVID-19). In this study, we aimed to examine the relationship between oral health literacy (OHL), dietary literacy (DL), and changes in oral health and eating habits during the COVID-19 pandemic.

Materials And Methods: The self-assessment questionnaire, including questions on oral and dietary conditions for each period of the COVID-19 pandemic, sources of information, OHL, DL, and frequency of COVID-19 prevention measures, was administered using a web research company.

View Article and Find Full Text PDF

Background/purpose: With the gradual aging of the population, oral health has emerged as a critical concern alongside mental well-being. This study endeavored to investigate the relationship between oral health-related quality of life (OHRQoL) and mental depression in middle-aged and older population.

Materials And Methods: Based on the Taiwan Longitudinal Study on Aging in 2015, 7631 participants were enrolled.

View Article and Find Full Text PDF

Background/purpose: The integration of digital technologies in dental technician education revolutionized the profession in Asian countries. Despite the growing adoption of digital methods, national examinations predominantly relied on traditional techniques. This study aimed to conduct a comparative analysis of national examination standards and digital course integration in dental technician education among 5 countries including Japan, Taiwan, South Korea, the Philippines, and China.

View Article and Find Full Text PDF