Publications by authors named "Quan Wen"

Objectives: The aim of this study was to compare the effectiveness of automated supernumerary tooth (ST) detection systems on periapical radiographs using Faster R-CNN and YOLOv8 with detection by 8 dental residents.

Methods: This was a diagnostic accuracy study of 469 periapical radiographs (419 training vs. 50 test datasets).

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Renal anastomotic hemangioma (AH) is a rare, benign vascular tumor with unique histopathological features, a disease that is clinically rare, and existing clinical cases offer different treatment options. As reported in the text, this is a very unusual case of renal AH with AH secondary to residual renal tissue after renal clear cell carcinoma, describing a rare renal AH and a history of renal clear cell carcinoma, including ultrasound, computed tomography and magnetic resonance imaging. However, the available imaging data and the literature do not provide an effective basis for the diagnosis of the disease, raising the lack of understanding and misdiagnosis, where the patient eventually underwent nephrectomy, but the author is not the most appropriate surgical treatment.

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Background And Aim: Gut microbiota dysbiosis plays a critical role in malnutrition caused by food intolerance and intestinal inflammation in children, which needs to be addressed. We assessed the efficacy and safety of washed microbiota transplantation (WMT) for gastrointestinal disease-related malnourished children.

Methods: This was a prospective observational study involving gastrointestinal disease-related malnourished pediatric patients who underwent WMT.

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The aim of this study was to investigate the underlying mechanism of chrysophanol(Chr) in reducing inflammation and foam cell formation induced by oxidized low-density lipoprotein(ox-LDL) and to investigate the targets and pathways related to effects of Chr on coronary atherosclerosis, providing a theoretical basis for the development of new clinical drugs. RAW264.7 macrophages were cultured in vitro, and after determining the appropriate concentrations of Chr and ox-LDL for treating RAW264.

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Synthetic photobiocatalysts are promising catalysts for valuable chemical transformations by harnessing solar energy inspired by natural photosynthesis. However, the synergistic integration of all of the components for efficient light harvesting, cascade electron transfer, and efficient biocatalytic reactions presents a formidable challenge. In particular, replicating intricate multiscale hierarchical assembly and functional segregation involved in natural photosystems, such as photosystems I and II, remains particularly demanding within artificial structures.

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Hemorrhoidal disease (HD) is a prevalent proctological condition that has puzzled people since ancient times, and the most common symptom is painless bleeding. Traditional treatments include conservative treatment, nonsurgical office-based treatments, and surgery. Sclerotherapy is one of the oldest forms of nonoperative intervention and is widely used to treat internal hemorrhoids with the development of endoscopy technology.

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The intestine, as a crucial organ of the human body, has remained enigmatic despite the remarkable advancements in modern medical technology. Over the past decades, the invention of endoscopic technology has made the noninvasive intervention of the intestine a reality, expanding diagnostic and therapeutic options for diseases. However, due to the single-treatment feature of endoscopic procedures, continuous or repeated medication administration, sampling, and decompression drainage within the intestine have yet to be fulfilled.

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Animal behavior is organized into nested temporal patterns that span multiple timescales. This behavior hierarchy is believed to arise from a hierarchical neural architecture: Neurons near the top of the hierarchy are involved in planning, selecting, initiating, and maintaining motor programs, whereas those near the bottom of the hierarchy act in concert to produce fine spatiotemporal motor activity. In , behavior on a long timescale emerges from ordered and flexible transitions between different behavioral states, such as forward, reversal, and turn.

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Objective: Melanoma Inhibitory Activity (MIA) has been predominantly studied in the context of melanoma and cartilage development. However, its role in dental pulp development and stem cell behavior remains largely unexplored. This study investigates the expression pattern of MIA in dental pulp tissues and its potential role in the proliferation, migration, and odontoblastic differentiation of stem cells from the apical papilla (SCAPs).

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Background: Magnetic resonance enterography (MRE) has become a routine intestinal imaging examination for Crohn's disease (CD). Sufficient bowel preparation is fundamental for MRE.

Objectives: To compare the efficacy and compliance of bowel preparation between through a mid-gut tube and oral administration for MRE in CD.

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This study develops an observational model to assess kidney function recovery and xenogeneic immune responses in kidney xenotransplants, focusing on gene editing and immunosuppression. Two brain-dead patients undergo single kidney xenotransplantation, with kidneys donated by minipigs genetically modified to include triple-gene knockouts (GGTA1, β4GalNT2, CMAH) and human gene transfers (hCD55 or hCD55/hTBM). Renal xenograft functions are fully restored; however, immunosuppression without CD40-CD154 pathway blockade is ineffective in preventing acute rejection by day 12.

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Machine learning based on clinical data and treatment protocols for better clinical decision-making is a current research hotspot. This study aimed to build a machine learning model on washed microbiota transplantation (WMT) for ulcerative colitis (UC), providing patients and clinicians with a new evaluation system to optimize clinical decision-making. Patients with UC who underwent WMT via mid-gut or colonic delivery route at an affiliated hospital of Nanjing Medical University from April 2013 to June 2022 were recruited.

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Background: Vital pulp therapy is gaining traction in dental practice, especially for young patients.

Aim: To evaluate the outcomes of partial pulpotomy in permanent molars of children diagnosed with irreversible pulpitis (IP) using iRoot BP Plus.

Design: A total of 94 permanent molars in 88 patients, aged 6-15 years, with symptoms of IP, were treated with partial pulpotomy, using iRoot BP Plus as the pulp capping agent.

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Article Synopsis
  • * A non-randomized control trial was conducted where UC patients underwent washed microbiota transplantation (WMT) or received conventional treatment; WMT led to significant increases in serum VD levels and vitamin D receptor expression.
  • * Results also indicated that the increase in VD levels post-WMT was linked to certain gut bacteria, suggesting that gut microbiota changes may influence the relationship between VD and UC activity.
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The existence of striations, and scratches in Abrasive waterjet (AWJ) cutting surface necessitates an exploration of these features for enhancing the cutting accuracy of AWJ machining. This article investigates surface roughness and micro-scratch morphology characteristics on brass cutting surfaces. According to the variation law of surface roughness values, the cutting section can be divided into three regions: the initial region, smooth region, and rough region.

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Objective: Rheumatoid arthritis (RA) is an autoimmune disease. The role of Th17/Treg balance in RA pathogenesis has been increasingly emphasized. In this study, bibliometric and visualization analyses of the top 100 most cited articles on Th17/Treg balance in the field of RA were conducted.

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Stem/progenitor cells differentiate into different cell lineages during organ development and morphogenesis. Signaling pathway networks and mechanotransduction are important factors to guide the lineage commitment of stem/progenitor cells during craniofacial tissue morphogenesis. Here, we used tooth root development as a model to explore the roles of FGF signaling and mechanotransduction as well as their interaction in regulating the progenitor cell fate decision.

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Genome-wide circulating cell-free DNA (ccfDNA) fragmentation for cancer detection has been rarely evaluated using blood samples collected before cancer diagnosis. To evaluate ccfDNA fragmentation for detecting early hepatocellular carcinoma (HCC), we first modeled and tested using hospitalized HCC patients and then evaluated in a population-based study. A total of 427 samples were analyzed, including 270 samples collected prior to HCC diagnosis from a population-based study.

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Continuity of behaviors requires animals to make smooth transitions between mutually exclusive behavioral states. Neural principles that govern these transitions are not well understood. spontaneously switch between two opposite motor states, forward and backward movement, a phenomenon thought to reflect the reciprocal inhibition between interneurons AVB and AVA.

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Objectives: The association between sarcopenia severity and fall history remains under-researched at present. Accordingly, this study was developed to evaluate the relationship between sarcopenic status and prior fall events in a multiethnic group of older community-dwelling adults in Western China.

Design: A retrospective survey study, the data comes from the West China Health and Aging Trend study.

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Objective: To analyze the clinical and radiographic effectiveness of a calcium silicate-based bioactive ceramic iRoot BP Plus pulpotomy of immature permanent teeth with complicated crown fracture and to evaluate the factors influencing its long-term success rate.

Methods: The digital medical records of patients under 13 years old who had undergone iRoot BP Plus pulpotomy in the Department of Oral Emergency or the First Clinical Division, Peking University School and Hospital of Stomatology from March 2017 to September 2022 due to complicated crown fracture of anterior teeth, and had taken at least one post-operation apical radiograph were reviewed. The clinical and radiographic information at the initial examination and follow-up period were obtained, including crown color, mobility, percussion, cold test (partial pulpotomy teeth), dental restoration, fistula, swelling or inflammation of the gingival tissue, the formation of apical foramen, pathologic radiolucency and calcification of pulp chamber or root canal obliteration.

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