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

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.

Adaptation and Validation of the Supportive and Palliative Care Indicators Tool (SPICT): A Quantitative Methodological Study.

Aims: To translate the Supportive and Palliative Care Indicators Tool (SPICT) into Chinese and conduct preliminarily tests of its performance in hospitalized patients with cancer.

Design: A cross-sectional validation study conducted from January to March 2024.

Methods: SPICT 2022 was translated in both directions, following the Brislin translation model, and the Chinese version culturally debugged through expert consultation and pre-testing.

Fatty Acid Profiles Linked to Organohalogen Exposure in Cetaceans from the Northern South China Sea.

Increasing evidence suggests that organohalogen contaminants (OHCs) could disrupt lipid metabolism in organisms, prompting consideration of fatty acids (FAs) as biological tools for assessing chemical stress in biological systems. This study examined 87 OHCs and 32 FAs in two sentinel cetacean species─Indo-Pacific humpback dolphins ( = 128) and Indo-Pacific finless porpoises ( = 26)─from the northern South China Sea (NSCS), a global hotspot for OHCs. Our results revealed higher OHC levels in these cetaceans than global averages.

Quercetin, a natural flavonoid induced by the spider mite Tetranychus urticae or alamethicin, is involved in the defense of lima bean against spider mites.

Background: Phaseolus lunatus, commonly known as the lima bean, is a leguminous crop cultivated in various regions worldwide. It is native to tropical America and is extensively grown in both tropical and temperate climates. Lima beans are highly nutritious and versatile, serving not only as a food and vegetable, but also as a source of green manure.

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.

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.

Strawberry anthocyanin pelargonidin-3-glucoside attenuated OA-induced neurotoxicity by activating UPR.

In this study, network pharmacology analysis revealed that strawberry anthocyanins mainly interfered with lipid metabolism and nerve-related signaling pathways. Pelargonidin-3-glucoside (Pg3G), one of the main anthocyanins in strawberry, was screened as the most effective anthocyanin for attenuating excess lipid accumulation. Moreover, Pg3G decreased lipid levels, relieved oxidative stress, and restored abnormal behavioral activities in under oleic acid (OA) exposure.

Intensive and Persistent Chemiluminescence from Orderly Arranged Ligands within Metal-Organic Frameworks for Inflammation Imaging.

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.

Heat stress promotes osteogenic and odontogenic differentiation of stem cells from apical papilla via glucose-regulated protein 78-mediated autophagy.

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.

NCK1 antisense RNA 1 (NCK1-AS1) exerts pro-fibrosis property in oral mucosa through modulation of miR-137/NCK1 axis.

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.

Integrating digital technologies in dental technician education: A comparative study of national examination in Asian countries.

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.

Presence and distribution of voids after using the single cone obturation technique with different sealer placement methods in canals with an isthmus.

Background/purpose: The obturation of canals with irregular structures is still a challenge for single cone obturation technique (SC). The purpose of this study was to evaluate the presence and distribution of voids using SC with different sealer placement methods in the canal with a simulated band-shaped isthmus.

Materials And Methods: 3D-printed root canal models with band-shaped isthmuses were randomly divided into four groups according to different obturation methods.

Matrix metalloproteinase-9 upregulation in keratinocytes of oral lichen planus via c-Jun N-terminal kinase signaling pathway activation.

Background/purpose: Oral lichen planus (OLP) is a chronic inflammatory disorder characterized by basement membrane disruption, which plays a crucial role in its pathogenesis. Matrix metalloproteinases (MMPs), a group of proteolytic enzymes, contribute to the degradation of the basement membrane. The specific MMPs secreted by keratinocytes in OLP lesions and relevant regulatory mechanisms are not fully understood.

Beta-adrenergic receptor antagonist propranolol prevents bisphosphonate-related osteonecrosis of the jaw by promoting osteogenesis.

Background/purpose: Bisphosphonate-related osteonecrosis of the jaw (BRONJ), a complication arising from the use of bisphosphonates (BPs), inflicts long-term suffering on patients. Currently, there is still a lack of effective treatments. This study aimed to explore the preventive effects of propranolol (PRO) on BRONJ in vitro and in vivo, given PRO's potential in bone health enhancement.

Relationships between orofacial pain and sleep: Analysis of UK biobank and genome-wide association studies data.

Background/purpose: Orofacial pain is common in dental practices. This study aimed to explore relationships between orofacial pain and sleep using the UK Biobank dataset and, based on epidemiological associations, to investigate the causal association using genome-wide association studies data.

Materials And Methods: First, a cross-sectional study was conducted with 196,490 participants from UK Biobank.

A scientometric study of syphilis research by dermatologists and stomatologists: Underpinning their roles in public health.

Background/purpose: launched a call to action for dermatologists in the rise of syphilis. In practice, dermatologists and stomatologists perform early diagnoses of syphilis and refer patients to adequate treatment.

Materials And Methods: This scientometric study aimed to investigate and compare research trends and characteristics of syphilis publications by dermatologists and stomatologists in the Scopus database, with emphasis on the analysis of the keywords that can reflect research directions and topics of concern.

A scientometric study on research trends and characteristics of oral leukoplakia and oral lichen planus.

Background/purpose: Oral leukoplakia (OLK) and oral lichen planus (OLP) represent two common oral potentially malignant disorders. It would be interesting to know scientific output and characteristics of studies on OLK and OLP.

Materials And Methods: This study aimed to investigate and compare scientometric characteristics of articles on OLK and OLP in the Scopus database, with emphasis on the analysis of the keywords that can reflect research directions and topics of concern.

Nucleotide-binding oligomerization domain-like receptor family caspase recruitment domain containing protein 5 affects the progression of periodontitis by regulating the function of periodontal membrane cells.

Background/purpose: Nucleotide-binding oligomerization domain-like receptor family caspase recruitment domain containing protein 5 (NLRC5) plays a regulatory role in innate and adaptive immunity. However, its role in periodontitis remains unclear. This study investigated the effects of NLRC5 on periodontitis and the underlying mechanism.

The relevance of dental management prior to radiation therapy with severe oral mucositis in head and neck cancer patients.

Background/purpose: Dental management prior to radiotherapy is often time-critical, and there are no studies on whether manipulations such as tooth extraction influence the risk of severe radiation-induced oral mucositis (ROM) during radiotherapy. Therefore, the aim of this study was to describe the relationship between dental management and the incidence of severe ROM.

Materials And Methods: A retrospective analysis was conducted on 144 head and neck cancer (HNC) patients who received dental management before radiotherapy at Peking University Cancer Hospital, from January 2016 to December 2017.

Establishment and evaluation of a deep learning-based tooth wear severity grading system using intraoral photographs.

Background/purpose: Artificial intelligence (AI) can assist in medical diagnosis owing to its high accuracy and efficiency. This study aimed to develop a diagnostic system for automatically determining the degree of tooth wear (TW) using intraoral photographs with deep learning.

Materials And Methods: The study included 388 intraoral photographs.

Prognostic nomogram for proliferative verrucous leukoplakia.

Background: Proliferative verrucous leukoplakia (PVL) is a special type of leukoplakia characterized by high rate of malignant transformation into oral squamous cell carcinoma (OSCC). This study aimed to analyze the canceration risk and prognostic factors of PVL and establish effective diagnostic and prognostic predictive models.

Materials And Methods: A total of 467 patients were enrolled, including 170 cases of PVL.

A review of the roles of exosomes in salivary gland diseases with an emphasis on primary Sjögren's syndrome.

Salivary gland diseases encompass a broad range of conditions, including autoimmune, inflammatory, obstructive, and neoplastic disorders, significantly impacting oral health and overall well-being. Recent research has highlighted the crucial role of exosomes, small extracellular vesicles, in these diseases. Exosomes mediate intercellular communication by transferring bioactive molecules such as proteins, microRNAs, and lipids, positioning them as potential diagnostic biomarkers and therapeutic agents.

A scientometric study on research trends and characteristics of discoid lupus erythematosus.

Background/purpose: Discoid lupus erythematosus (DLE) serves as an interdisciplinary disease involved in dermatology and stomatology in many cases. The purpose of this study was to analyze the scientometric characteristics and research trends of DLE.

Materials And Methods: All the papers on DLE were comprehensively retrieved from the Scopus database.

miR-508-5p suppresses osteogenic differentiation of human periodontal ligament stem cells via targeting sex-determining region Y-related HMG-box 11.

Background/purpose: The local inflammatory microenvironment created by periodontitis negatively impacts periodontal tissue regeneration, necessitating the development of methods to enhance the regenerative capacity of stem cells. This study explored the regulatory role and underlying mechanism of miR-508-5p in the osteogenic differentiation of human periodontal ligament stem cells (hPDLSCs).

Materials And Methods: The regulatory roles of miR-508-5p in osteogenic differentiation of hPDLSCs were investigated through its inhibition or overexpression.

From gingiva to multiple organs in mice: The trace of via imaging.

Background/purpose: Periodontitis is associated with systemic health. One of the underlying mechanisms is the translocation of periodontal pathogens, among which () is the most common. Here, we aimed to illustrate the biodistribution and dynamics of from gingiva to multiple organs through blood circulation.