Publications by authors named "Guoxia Yu"

Background: Tooth agenesis is the most frequently occurring genetic developmental anomaly in clinical dentistry. The gene, essential for tooth development, has been associated with non-syndromic tooth agenesis. This study aims to identify novel variants associated with this condition and to understand their impact on tooth development.

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Article Synopsis
  • * After analyzing over 10,000 panoramic radiographs, researchers found a CMPC prevalence of 0.69%, with a notable difference between age groups: younger patients (under 10 years) had lower prevalence compared to older patients (ages 10 and above).
  • * Most missing canines were found in the upper jaw, with a significant majority of patients having visible primary canines; additional anomalies like other missing teeth and microdontia were also noted among affected individuals.
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Disulfide-bonded peptides and proteins, including hormones, toxins, growth factors, and others, are abundant in living organisms. These molecules play crucial physiological roles such as regulating cell and organism growth, development, and metabolism. They have also found widespread applications as drugs or tool molecules in biomedical and pharmaceutical research.

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The aim of the present study was to explore the risk factors of postoperative airway complications in children with oral floor mass. The first choice of auxiliary examination method for children with oral floor mass is also proposed. This retrospective study included 50 children with floor-of-mouth (FOM) masses.

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Purpose: To evaluate the effect of sandblasting on the microtensile strength between sclerotic dentin and resin composite.

Methods: 32 premolars with noncarious cervical lesions (NCCLs) were collected, and the teeth were randomly assigned to the control group (C group) and the sandblasted group (S group). Teeth in the S group were sandblasted with 110 µm Al₂O₃ particles at a pressure of 75 psi, while those in the C group received no further treatment.

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In recent years, the diagnosis and treatment of hemophilic children in China has significantly improved. However, oral health conditions, which affect quality of life, haven't received attention in this population. To explore the oral health status and oral hygiene of children and adolescents with hemophilia in the Children's Hemophilia Comprehensive Care Center of China.

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Hutchinson-Gilford progeria syndrome (HGPS) is an extremely rare disease characterized by appearance of premature aging, including the skin, bones, heart, and blood vessels caused by LMNA mutation. In this study, the patient presented with congenital micrognathia and progressively aggravated upper airway obstruction as the initial symptom, which required bilateral mandibular distraction osteogenesis (MDO) surgery intervention. This was not commonly described in the literature, and the primary clinical diagnosis of Pierre Robin sequence (PRS) was made.

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Asthma and dental caries are the two most common diseases in children, and the relationship between them has been a focus of research. Whether dental caries affects the development of asthma has long been controversial. The aim of this study was to conduct a systematic review of the literature to assess the effect of dental caries on the development of asthma and provide new ideas for the pathogenesis and promoting factors of asthma.

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The objective of this study was to introduce a novel deep learning technique for more accurate children caries diagnosis on dental panoramic radiographs. Specifically, a swin transformer is introduced, which is compared with the state-of-the-art convolutional neural network (CNN) methods that are widely used for caries diagnosis. A tooth type enhanced swin transformer is further proposed by considering the differences among canine, molar and incisor.

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Objective: The aim of this study was to retrospectively analyze the outcomes from surgical and nonsurgical treatments for head and neck lymphatic malformations (LMs) in children.

Study Design: Fifty-eight patients were divided into a surgical group (22) and a nonsurgical group (36). The surgical group contained microcystic LMs in the tongue treated by surgery or with sclerotherapy.

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The midpalatal suture is mainly responsible for the growth and development of the maxillary and resistance to rapid maxillary expansion (RME). It is essential for clinical researchers to explore the intramembrane ossification and to elucidate the underlying mechanism of the maturation and ossification process of the midpalatal suture to help identify the optimum time and force of RME. However, mechanistic studies associated with the midpalatal suture are rare.

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The objective of this study is to improve traditional convolutional neural networks for more accurate children dental caries diagnosis on panoramic radiographs. A context aware convolutional neural network (CNN) is proposed by considering information among adjacent teeth, based on the fact that caries of teeth often affects each other due to the same growing environment. Specifically, when performing caries diagnosis on a tooth, information from its adjacent teeth will be collected and adaptively fused for final classification.

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Background: Midpalatal suture maturation and ossification status is the basis for appraising maxillary transverse developmental status.

Methods: We established a midpalatal suture cone-beam computed tomography (CBCT) normalized database of the growth population, including 1006 CBCT files from 690 participants younger than 24 years old. The midpalatal suture region of interest (ROI) labeling was completed by two experienced clinical experts.

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Article Synopsis
  • Melanotic neuro-ectodermal tumor of infancy (MNTI) is a rare tumor that typically occurs in infants under 6 months old, characterized by a rapidly-growing, non-ulcerated soft tissue swelling with pigmented mucosa.
  • A study of four patients revealed distinctive imaging features using ultrasound, CT, and MRI, including osteolytic maxillary bone destruction and specific signal intensities on MRI scans.
  • Recognizing the imaging characteristics along with clinical history is essential for diagnosing MNTI, as there are no signs of metastasis in affected patients.
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Objectives: The aim of this study was to perform an updated review of the in vivo methods to evaluate human midpalatal suture maturation and ossification, since this evaluation process remains an unsolved and critical problem in orthodontic treatment.

Materials And Methods: PubMed, Embase, Cochrane Library, Scopus and Web of Science databases were searched up to November 30, 2021. Literature selection was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA, 2020 Edition) statement and was based on predetermined inclusion criteria.

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Articular cartilage injury is common and difficult to treat clinically because of the characteristics of the cartilage. Bone marrow-derived mesenchymal stem cell (BMSC)-mediated cartilage regeneration is a promising therapy for treating articular cartilage injury. BMSC differentiation is controlled by numerous molecules and signaling pathways in the microenvironment at both the transcriptional and post-transcriptional levels.

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Bone regeneration and remodeling are complex physiological processes that are regulated by key transcription factors. Understanding the regulatory mechanism of key transcription factors on the osteogenic differentiation of mesenchymal stem cells (MSCs) is a key issue for successful bone regeneration and remodeling. In the present study, we investigated the regulatory mechanism of the histone deacetylase Sirtuin 7 (SIRT7) on the key transcription factor OSX and osteogenesis of MSCs.

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Background: Exploring the molecular mechanisms underlying directed differentiation is helpful in the development of clinical applications of mesenchymal stem cells (MSCs). Our previous study on dental tissue-derived MSCs demonstrated that secreted frizzled-related protein 2 (SFRP2), a Wnt inhibitor, could enhance osteogenic differentiation in stem cells from the apical papilla (SCAPs). However, how SFRP2 promotes osteogenic differentiation of dental tissue-derived MSCs remains unclear.

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Dental tissue-derived mesenchymal stem cells (MSCs) are easily obtained and considered as a favorable cell source for tissue engineering, but the regulation of direct differentiation is unknown, which restricts their application. The present study investigated the effect of SFRP2, a Wnt signaling modulator, on MSC differentiation using stem cells from apical papilla (SCAPs). The cells were cultured in specific inducing medium for adipogenic, neurogenic, or chondrogenic differentiation.

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Objectives: Dental mesenchymal stem cells (MSCs) are easily obtained; however, mechanisms underlying directed differentiation of these cells remains unclear. Wnt/β-catenin signalling is essential for mesenchymal cell commitment and differentiation, and Wnt inhibition is linked to stem cell maintenance and function. Secreted frizzled-related protein 2 (SFRP2) competes with the Frizzled receptor for direct binding to Wnt and blocks activation of Wnt signalling.

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Objective: To study the current situation of coagulation factor VIII (FVIII) inhibitor development in children with hemophilia A (HA) through a cross-sectional survey, and to explore the risk factors of inhibitor development in order to provide evidence for further prevention and management strategies.

Method: The clinical data of outpatients with hemophilia A in Beijing Children's Hospital seen from November 2012 to May 2013 were collected, FVIII inhibitor was screened and analyzed its risk factors.

Result: A total of 102 HA children were enrolled, 5 were mild cases, 32 were moderate, and 65 were severe cases; the median age on enrollment was 55.

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Objective: To investigate the recovery patterns and the influencing factors of facial nerve injury in maxillofacial surgery by retrospective analysis of a serial clinical data.

Methods: A total of 182 patients with facial nerve injury were reviewed. The cause of injury, the initial facial nerve function after trauma, the treatment, the initial recovery time of facial nerve function and the total recovery time were recorded.

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