Hotspots and global trends in research of host immune response in periodontitis: A bibliometric analysis.

Background: The host immune response plays a major role in the pathogenesis of periodontitis. A bibliometric study can be crucial to understanding the different processes involved in this area; however, to our knowledge, it has not been published until now. Therefore, a bibliometric analysis was conducted to assess research hotspots and global trends in scientific articles about the immune response in periodontitis published between 1952 and 2023.

Enhanced Procedural Efficacy in Typical Atrial Flutter Ablation With a Visualizable Steerable Sheath.

Objective: The Vizigo sheath, a novel visualizable steerable sheath, has been utilized effectively in the clinical management of atrial fibrillation. However, its application in the ablation of typical atrial flutter (AFL) remains unexplored. This study aims to evaluate and compare the efficacy and safety of the Vizigo sheath against a conventional fixed sheath during catheter ablation for typical AFL.

Top-down curing to construct self-retaining and moisture-pumping double-layered dressing with enhanced antibacterial, hemostatic, and wound healing performances.

Continuous microenvironment modulation is an ongoing challenge in wound dressing, which includes excessive exudate absorption, oxygen delivery, bacterial inhibition and angiogenesis. Herein, we developed an construction strategy to fabricate a self-retaining double-layered wound dressing, where the top layer precursor was composed of Ca-containing polyvinyl butyral (PVB) solution dispersed with hydroxypropyl methylcellulose (HPMC) particles, and the bottom one consisted of sodium alginate (Alg) solution blended with Ag-doped mesoporous bioactive glass powders (Ag-MBG). When in use, both precursors were simultaneously squeezed out from the twin nozzles connected to the individual chambers of a twin-chambered syringe, whereby Ca in the top layer rapidly migrated downwards to crosslink Alg in the bottom layer, leading to the formation of an Alg/Ag-MBG (AA) functional hydrogel for filling an irregular wound.

Biomimetic Air-Lifted Organ Culture System with a Protective Coverage Membrane for Full-Thickness Corneal Preservation.

Effective storage and utilization of limited donor corneal resources are in high demand to alleviate the shortage of donor corneal tissue. Here, we designed a static air-lifted organ culture system equipped with a protective coverage membrane, namely, an air-lifted OC-P system, to provide a biomimetic physiological environment for full-thickness corneal preservation. The air-lifted OC-P system features a unique collagen-based protective coverage membrane that can offer a moist, oxygen-rich environment for corneal epithelium, produce an appropriate intraocular pressure onto the cornea by gravity, and facilitate the maintenance of the organ culture medium level for nutrient supply during corneal preservation.

Single-Cell Sequencing of Peripheral Blood Mononuclear Cells Reveals Immune Landscape of Monkeypox Patients with HIV.

The monkeypox (MPXV) outbreak in 2022 is more prevalent among individuals with human immunodeficiency virus (HIV). While it is plausible that HIV-induced immunosuppression could result in a more severe progression, the exact mechanisms remain undetermined. To better understand the immunopathology of MPXV in patients with and without HIV infection, we employed single-cell RNA sequencing (scRNA-seq) to analyze peripheral blood mononuclear cells (PBMCs) from 6 patients hospitalized for MPXV, 3 of whom had HIV infection (HIV antibody positive & HIV RNA level below the detection limit), and 3 patients only infected with MPXV (HIV-).

Study of a 2DOF bistable energy harvester with variable potential well for ultra-low frequency vibration energy harvesting.

A two-degree-of-freedom bistable energy harvester with a spring-magnet oscillator designed for ultra-low frequency vibration energy harvesting is presented in this paper. It combines magnetic plucking frequency upconversion and a variable potential function to achieve a high-efficiency response while also being suitably installed for applications with spatial limitations. A lumped parameter model of the piezoelectric energy harvester and the magnetic dipoles is applied to develop the theoretical model for the system.

Placental mitochondrial metabolic adaptation maintains cellular energy balance in pregnancy complicated by gestational hypoxia.

The mechanisms that drive placental dysfunction in pregnancies complicated by hypoxia and fetal growth restriction remain poorly understood. Changes to mitochondrial respiration contribute to cellular dysfunction in conditions of hypoxia and have been implicated in the pathoaetiology of pregnancy complications, such as pre-eclampsia. We used bespoke isobaric hypoxic chambers and a combination of functional, molecular and imaging techniques to study cellular metabolism and mitochondrial dynamics in sheep undergoing hypoxic pregnancy.

Integrated care for mental health in epilepsy: A systematic review and meta-synthesis by the International League Against Epilepsy Integrated Mental Health Care Pathways Task Force.

Mental health (MH) comorbidities are prevalent among people with epilepsy (PWE), but many experience challenges accessing care. To address this, suggestions have been made to integrate MH care into epilepsy care settings, yet the current approaches, benefits, and implementation determinants to MH care integration are unclear. This review aims to synthesize existing integrated MH care models for PWE to inform the development and planning of future initiatives.

Understanding the perspectives of police officers regarding men who use drugs and drug rehabilitation in China: a qualitative study.

Drug use among men is a significant public health concern in China, with compulsory drug treatment centers being the primary approach. Police officers in these centers play a crucial role in shaping the interactions and experiences of men who use drugs (MWUD). However, little research exists on the attitudes of police officers toward MWUD in China.

Comparison of Single Knee Arthroplasty and Bilateral Knee Arthroplasty in Haemophiliacs During a Single Operation: A Systematic Review and Meta-Analysis.

Background: Arthroplasty is the standard treatment for end-stage haemophilic knee arthritis; however, the choice between single knee arthroplasty (SKA) and bilateral knee arthroplasty (BKA) in a single operation remains controversial due to the risks specific to haemophiliacs.

Methods: Two independent researchers conducted searches across CNKI, CBM, Wanfang, PubMed, Cochrane Library, Embase, and Web of Science, with the last search performed on 15 October 2024. Study results include joint function, complication and various cost.

Global burden and trends of severe periodontitis among women of childbearing age, 1990-2021.

Background: The global burden and trend of severe periodontitis, as well as its association with sociodemographic development, among women of childbearing age (WCBA) have been unclear so far. This study aims to assess the epidemiological pattern of severe periodontitis in WCBA from 1990 to 2021 and provide projections through 2040.

Methods: Data on the incidence, prevalence, and disability-adjusted life years (DALYs) of severe periodontitis among WCBA from 1990 to 2021 were retrieved from the Global Burden of Disease (GBD) study 2021.

Effect of initial bone morphology on alveolar bone remodeling following molar extraction: A retrospective study.

Background: The clinical evidence about alveolar ridge changes following molar extraction and how the alveolar bone morphology influences the ridge dimensional changes remains limited.

Methods: A total of 192 patients with 199 molar extractions were included in this retrospective study. Cone-beam computed tomography (CBCT) images of patients were obtained 0-3 months pre extraction and 6-12 months post extraction.

Tailored Nucleation-Growth Strategy for Precise Self-assembly of Block Copolymers.

The self-assembly of block copolymers (BCPs) to form nanostructures of various morphologies and controllable dimensions has been a very promising research area in nanotechnology in recent decades. This review mainly summarizes the recent advances in precise and controllable self-assembly of BCPs through a tailored nucleation-growth strategy to modulate the self-assembly behavior of the BCPs. These efforts have led to a better understanding of the self-assembly mechanisms and opened new possibilities for creating novel materials with designable properties.

Controlled Self-assembly of Nanographdiynes Mediated by Molecular Dipoles Induced by Rotatory Asymmetric Substituents.

The discrete π- stacks of specific lengths and orientation is crucial for understanding the impact of intermolecular interactions on optical or electronic properties of nanographdiynes. We designed and synthesized nanographdiynes modified with bulky rotatable asymmetric substituents. The peripheral substituents with different push-pull electronic properties can induce molecular dipoles perpendicular to nanoGDY π surface with different orientation.

DNDMH enabled C(sp)-H nitration of aryl alkenes.

C(sp)-H bond nitration provides facile access to nitro compounds that are inaccessible through traditional nitration pathways. This work describes a C(sp)-H bond nitration of aryl alkenes using DNDMH, a nitration reagent developed previously in our lab. Notably, this novel nitration process presents excellent regioselectivity and chemoselectivity between C(sp)-H nitration and C(sp)-H nitration.

Unexpected amine-triggered skeletal modification of fascaplysin and its derivatives: rapid access to δ,γ-biscarbolines.

An unsuccessful attempt to directly construct alkaloid iheyamine A from a fascaplysin framework resulted in the discovery of a novel synthetic approach to alkylated δ,γ-biscarboline derivatives. With the easy-to-operate reaction conditions of this protocol, 18 alkylated biscarbolines have been prepared in moderate to good yields. An unexpected domino transformation was proposed to involve a pyridinium ring-opening/aza-electrocyclization/oxidative deformylation sequence.

Understanding the effects of adduct functionalization on C nanocages for the hydrogen evolution reaction.

In this work, we use experimental and theoretical techniques to study the origin of the boosted hydrogen evolution reaction (HER) catalytic activity of two pyridyl-pyrrolidine functionalized C fullerenes. Notably, the mono-(pyridyl-pyrrolidine) penta-adduct of C has exhibited a remarkable HER catalytic activity as a metal-free catalyst, delivering an overpotential () of 75 mV RHE and a very low onset potential of -45 mV RHE. This work addresses fundamental questions about how functionalization on C changes the electron density on fullerene cages for high-performance HER electrocatalysis.

The Relationship Between Boredom and Smartphone Addiction Before and After the Outbreak of the COVID-19 Pandemic: A Systematic Review and Meta-Analysis.

Prior research has explored the relationship between boredom and smartphone addiction (SPA), but significant discrepancies remain. Moreover, the outbreak of the COVID-19 pandemic may have altered this association. Thus, this meta-analysis aims to clarify the true relationship between boredom and SPA, while also analyzing potential moderating factors.

Realizing zero-threshold population inversion plasmonic doping.

Lowering the population inversion threshold is key to leveraging quantum dots (QDs) for nanoscale lasing and laser miniaturization. However, optical realization of population inversion in QDs has an inherent limitation: the number of excited electrons per QD is bound by the absorbed photons. Here we show that one can break this population limit and realize near-zero threshold inversion plasmonic doping.

Facilitated Channeling of Fixed Carbon and Energy into Chemicals in Artificial Phototrophic Communities.

Light-driven CO biovalorization offers a promising route for coupling carbon mitigation with petrochemical replacement. Synthetic phototrophic communities that mimic lichens can reduce the metabolic burden with improved CO utilization. However, inefficient channeling of carbon and energy between species seriously hinders the collaborative CO-to-molecule route.

CircPRKD3-loaded exosomes concomitantly elicit tumor growth inhibition and glioblastoma microenvironment remodeling via inhibiting STAT3 signaling.

Background: Glioblastoma stem cells (GSCs) and their exosomes (exos) are involved in shaping the immune microenvironment, which is important for tumor invasion and recurrence. However, studies involving GSC-derived exosomal circular RNAs (GDE-circRNAs) in regulating tumor microenvironment (TME) remain unknown. Here, we comprehensively evaluated the significance of a novel immune-related GDE-circRNA in glioma microenvironment.

Dynamic Force Sensing for Continuous Scraping Towards Endometrium Repair Surgery.

Background: A surgical robot with force feedback can guarantee precise and gentle manipulation for endometrial repair, ensuring the effectiveness and safety of the manipulation. However, the design of force sensors for surgical robots is challenging due to the limited anatomical space and the requirement for continuous rotation.

Methods: This paper presents a novel force-sensing surgical instrument for endometrial repair, including an inner scraping instrument and an outer force sensing sheath.

Acid-Triggered Dual-Functional Hydrogel Platform for Enhanced Bone Regeneration.

Stem cell implantation holds promise for enhancing bone repair, but risks of pathogen transmission and malignant cell transformation should not be ignored. Compared to stem cell implantation, recruitment of endogenous stem cells to injured sites is more critical for in situ bone regeneration. In this study, based on the acidic microenvironment of bone injury, an HG-AA-SDF-1α composite hydrogel with a dual-control intelligent switch function is developed by incorporating stromal cell-derived factor (SDF-1α), arginine carbon dots (Arg-CDs), and calcium ions (Ca) into the oxidized hyaluronic acid/gelatin methacryloyl (HG) hydrogel.