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Letter to the Editor, “Early Childhood Exposures to Fluorides and Cognitive Neurodevelopment: A Population-Based Longitudinal Study” 致编辑的信,“儿童早期接触氟化物和认知神经发育:一项基于人群的纵向研究”
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-11-14 DOI: 10.1177/00220345251368276
C. Neurath, H. Limeback, C.V. Howard
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引用次数: 0
Transcription Accuracy of Automatic Speech Recognition for Orthodontic Clinical Records 口腔正畸临床记录语音自动识别的转录准确性研究
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-11-03 DOI: 10.1177/00220345251382452
R. O’Kane, D. Stonehouse-Smith, L.C.U. Ota, R. Patel, N. Johnson, C. Slipper, J. Seehra, S.N. Papageorgiou, M.T. Cobourne
Accurate clinical records are fundamental to dental practice. Automatic speech recognition (ASR) has the capacity to convert spoken clinical language into written text within the electronic health record; however, the accuracy of ASR in natural language processing for clinical dentistry remains uncertain. The aim of this study was to investigate the transcriptional accuracy of ASR systems using orthodontic clinical records as the experimental model. Specifically, we used 4 commercial ASR systems (Heidi Health, DigitalTCO, Dragon Medical One, Dragon Professional Anywhere), 5 application programming interfaces (Amazon, Google, Speechmatics, Whisper, GPT4oTranscribe), and a 2-stage pipeline coupling GPT4oTranscribe with the GPT4o large language model (LLM) for generative error correction (GPT4oTranscribeCorrected). Orthodontic diagnostic and treatment planning summaries ( <jats:italic toggle="yes">n</jats:italic> = 200; 10 subject domains; 43,408 words; 6 h of audio) were narrated and recorded for analysis. The primary outcome was domain word error rate (DWER), which investigates clinical terminological transcription errors against the Systematized Nomenclature of Medicine Clinical Terms (SNOMED-CT) database. Secondary outcomes included nondomain WER (N-DWER), lexical accuracy (Recall-Oriented Understudy for Gisting Evaluation [ROUGE] score), semantic similarity (Bidirectional Encoder Representations from Transformers [BERT] and Bidirectional and Auto-Regressive Transformer [BART] scores), hallucinations (transcribed text not in the spoken input), and qualitative error analysis. GPT4oTranscribeCorrected was transcriptionally most accurate (DWER = 3.5%; WER = 3.7%), with DWER decreasing by 54.9% versus GPT4oTranscribe. Heidi Health was the highest-performing commercial system (DWER = 6.2%; WER = 5.4%), with Dragon Professional Anywhere being the worst (WER = 33.9%). All systems were less accurate with technical vocabulary (DWER > N-DWER; <jats:italic toggle="yes">P</jats:italic> < 0.001), except GPT4oTranscribeCorrected. Significant differences were seen across systems for ROUGE, BERT, and BART scores ( <jats:italic toggle="yes">P</jats:italic> < 0.001). Based on post hoc pairwise comparisons, GPT4oTranscribeCorrected performed best and Dragon Professional Anywhere was consistently worst for lexical and semantic errors. Hallucinations were absent except for Whisper ( <jats:italic toggle="yes">n</jats:italic> = 57) and DigitalTCO ( <jats:italic toggle="yes">n</jats:italic> = 1). Across systems, background noise increased DWER and WER ( <jats:italic toggle="yes">P</jats:italic> < 0.001). Importantly, clinically significant errors were seen with all systems, ranging from 2% to 66% (GPT4oTranscribeCorrected clean; Dragon Medical One background noise, respectively). Variation in narrator accent had no effect in clean conditions ( <jats:italic toggle="yes">P</jats:italic> = 0.65) and a small effect with background noise ( <jats:italic toggle="y
准确的临床记录是牙科实践的基础。自动语音识别(ASR)能够在电子健康记录中将口头临床语言转换为书面文本;然而,在临床牙科的自然语言处理中,ASR的准确性仍然不确定。本研究的目的是利用正畸临床记录作为实验模型来研究ASR系统的转录准确性。具体来说,我们使用了4个商业ASR系统(Heidi Health, DigitalTCO, Dragon Medical One, Dragon Professional Anywhere), 5个应用程序编程接口(Amazon, b谷歌,Speechmatics, Whisper, gpt40transcripte),以及一个2级管道耦合gpt40transcripte与gpt40large language model (LLM),用于生成纠错(gpt40transcribeccorrected)。对正畸诊疗计划总结(n = 200, 10个学科领域,43408个单词,6小时音频)进行叙述和记录以供分析。主要结果是领域词错误率(DWER),调查临床术语转录错误对医学临床术语系统化命名法(SNOMED-CT)数据库。次要结果包括非领域WER (N-DWER)、词汇准确性(面向记忆的替代评价评分[ROUGE])、语义相似性(来自变形金刚的双向编码器表征[BERT]和双向和自回归变形金刚[BART]评分)、幻觉(语音输入中没有转录的文本)和定性错误分析。gpt40transcribeccorrected在转录上最准确(DWER = 3.5%; WER = 3.7%),与gpt40transcribe相比,DWER降低了54.9%。Heidi Health是表现最好的商业系统(WER = 6.2%; WER = 5.4%), Dragon Professional Anywhere表现最差(WER = 33.9%)。所有系统在技术词汇方面的准确性都较低(DWER > N-DWER; P < 0.001),除了gpt40transcribe corrected。ROUGE、BERT和BART评分在不同系统之间存在显著差异(P < 0.001)。基于事后两两比较,gpt40transcribeccorrected表现最好,而Dragon Professional Anywhere在词汇和语义错误方面一直表现最差。除Whisper (n = 57)和DigitalTCO (n = 1)外,无幻觉。在各个系统中,背景噪声增加了DWER和WER (P < 0.001)。重要的是,所有系统的临床显著误差都在2%至66%之间(分别为gpt40、transcribeccorrected clean和Dragon Medical One背景噪声)。叙述者口音的变化在清洁条件下没有影响(P = 0.65),背景噪音的影响很小(P = 0.001)。ASR系统提供个位数的转录错误率,特别是当结合基于llm的校正时,但临床显著的错误仍然存在。当使用当前的ASR系统时,临床记录的验证是必不可少的。
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引用次数: 0
Vasculogenic Precedes Neurogenic Differentiation in Dental Pulp Stem Cells 牙髓干细胞的血管性分化先于神经性分化
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-11-03 DOI: 10.1177/00220345251379776
R. Tsuboi, Z. Zhang, K. Warner, S. The, E.T. Keller, J.E. Nör
Dental pulp stem cells (DPSCs) are neural crest–derived stem cells endowed with multipotency and self-renewal. While processes orchestrating DPSC differentiation have been studied extensively, mechanisms underpinning the differentiation of human DPSCs in vivo remain unclear. Here, we induced vasculogenic, odontoblastic, or neurogenic differentiation of human DPSCs for 7 d in vitro and performed single-cell RNA sequencing. Then, human DPSCs tagged with green fluorescent protein (DPSC-GFP) seeded in human tooth slice/scaffolds were transplanted into the subcutaneous space of immunodeficient mice. DPSC-GFP were sorted by flow cytometry 7 and 21 d after transplantation, and single-cell RNA sequencing was performed. In addition, a time course study was performed to investigate the sequence of differentiation events triggered upon transplantation of DPSC-GFP into mice. Here, we observed 8 distinct clusters of DPSCs at baseline, indicating a high level of cell heterogeneity. When DPSCs were induced to undergo vasculogenic, odontoblastic, or neurogenic differentiation in vitro , we observed distinct shifts in patterns of gene expression. Although some DPSCs retained mesenchymal stem cell markers likely due to asymmetric cell division and self-renewal, each differentiation protocol resulted in a unique gene expression signature. Stem cell markers that were highly expressed in DPSCs pretransplantation were progressively downregulated after 7 and 21 d in vivo. In contrast, endothelial cell markers presented high expression levels 7 d after transplantation, while neuronal markers showed upregulation 21 d after transplantation. Notably, while DPSC-derived functional blood vessels (i.e., blood-carrying vessels) can be clearly seen 2 wk after transplantation, well-defined DPSC-derived neural structures can be observed only after 5 wk. In conclusion, DPSCs are heterogeneous stem cells with distinct cell clusters, all of which contain progenitor cells with unique differentiation potential. Furthermore, this work demonstrated that microenvironment cues generated within human root canals are sufficient to induce vasculogenic differentiation, followed by neurogenic differentiation of DPSCs in vivo .
牙髓干细胞(DPSCs)是神经嵴来源的具有多能性和自我更新能力的干细胞。虽然调控DPSC分化的过程已被广泛研究,但支持人DPSCs在体内分化的机制仍不清楚。在这里,我们在体外诱导人DPSCs的血管源性、成牙细胞性或神经源性分化7天,并进行单细胞RNA测序。然后,将绿色荧光蛋白(DPSC-GFP)标记的人DPSCs植入人牙片/支架中,移植到免疫缺陷小鼠皮下。移植后7、21 d用流式细胞术对DPSC-GFP进行分选,并进行单细胞RNA测序。此外,我们还进行了时间过程研究,以研究DPSC-GFP移植小鼠后引发的分化事件的顺序。在这里,我们在基线上观察到8个不同的DPSCs簇,表明细胞异质性很高。当DPSCs在体外诱导进行血管源性、成牙性或神经源性分化时,我们观察到基因表达模式的明显变化。尽管一些DPSCs可能由于不对称的细胞分裂和自我更新而保留了间充质干细胞标记,但每种分化方案都导致了独特的基因表达特征。在DPSCs移植前高表达的干细胞标记物在体内7天和21天后逐渐下调。内皮细胞标志物在移植后第7天高表达,神经元标志物在移植后第21天表达上调。值得注意的是,虽然移植后2周可以清楚地看到dpsc衍生的功能血管(即载血血管),但只有在5周后才能观察到明确的dpsc衍生的神经结构。综上所述,DPSCs是具有不同细胞簇的异质干细胞,它们都含有具有独特分化潜力的祖细胞。此外,这项工作表明,在人类根管中产生的微环境线索足以诱导DPSCs在体内的血管源性分化,随后是神经源性分化。
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引用次数: 0
CaSR Activation Triggers Mandibular Overgrowth in Familial Mandibular Prognathism Patients and Mice. CaSR激活触发家族性下颌前伸症患者和小鼠的下颌过度生长。
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-11-03 DOI: 10.1177/00220345251384290
H Fang,P Li,Y Wei,H Li,P Wang,X Yang,H Yu,Y Fan,S Zhu,R Bi
Mandibular prognathism (MP) is the most common type of dentomaxillofacial deformity in East Asian populations. Genetic studies have revealed several MP-associated loci, suggesting that MP could be inherited as familial MP (fMP). However, functional verifications and in-depth mechanistic investigations of these loci are limited. For this study, we recruited 5 fMP families with 17 fMP members and 7 normal members. We first compared the clinical features of the 17 fMP members with 31 nonfamilial MP patients, finding a stronger mandibular overgrowth phenotype in the fMP subjects. Next, we performed whole-exome sequencing analysis with members of the 5 fMP families and singled out a potential fMP-associated pathogenic variant in the CASR gene (namely, rs117375173); the mutation introduces an amino acid substitution (A601G) in exon 7 and confers gain of function in Calcium-Sensing Receptor (CaSR). The rs11735173 variant changes the CaSR protein structure toward a semiactive state, similar to CaSR activated by L-tryptophan (L-Trp). To verify the regulating roles of CASR in mandibular bone growth, we further generated different mouse models with abnormal CaSR function. L-Trp administration effectively activated CaSR/GNAQ expression in vivo and in vitro. The MC3T3-E1 cell line transfected with CaSR with rs117375173 (CaSRA601G) showed increased osteogenic differentiation and collagen synthesis at the transcriptional level. Local injection of L-Trp in the mandible of growing mice significantly increased the mandibular length and BMD, due to activated osteogenic activity and suppressed bone resorption. At the same time, loss of function of CaSR in osteogenic progenitors caused mandibular growth retardation in Gli1-CreER; Casrfl/fl; tdTomatofl/+ mice. In conclusion, our study reveals that abnormal functioning of CaSR affects mandibular bone development and may contribute to the pathogenesis of fMP, providing a theoretical and experimental basis for the early diagnosis of and therapeutic strategies for fMP in clinical practice.
下颌前突症是东亚人群中最常见的牙颌面畸形。遗传学研究发现了几个与MP相关的位点,提示MP可能作为家族性MP (fMP)遗传。然而,这些基因座的功能验证和深入的机制研究是有限的。在本研究中,我们招募了5个fMP家庭,其中17个fMP成员和7个正常成员。我们首先比较了17名fMP成员与31名非家族性MP患者的临床特征,发现fMP受试者的下颌过度生长表型更强。接下来,我们对5个fMP家族的成员进行了全外显子组测序分析,并在CASR基因中筛选出了一个潜在的与fMP相关的致病变异(即rs117375173);该突变在第7外显子引入氨基酸取代(A601G),并赋予钙敏感受体(CaSR)功能的增益。rs11735173变异将CaSR蛋白结构改变为半活性状态,类似于l -色氨酸(L-Trp)激活的CaSR。为了验证CASR在下颌骨生长中的调节作用,我们进一步制作了不同CASR功能异常的小鼠模型。L-Trp有效激活CaSR/GNAQ在体内和体外的表达。用rs117375173 (CaSRA601G)转染CaSR的MC3T3-E1细胞系在转录水平上显示出成骨分化和胶原合成的增加。生长小鼠下颌骨局部注射l -色氨酸,由于激活成骨活性,抑制骨吸收,显著增加下颌骨长度和骨密度。同时,成骨祖细胞中CaSR功能缺失导致Gli1-CreER的下颌生长迟缓;Casrfl / fl;tdTomatofl / +老鼠。综上所述,我们的研究揭示了CaSR功能异常影响下颌骨骼发育,并可能参与fMP的发病机制,为临床fMP的早期诊断和治疗策略提供了理论和实验依据。
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引用次数: 0
CD300lf Regulates Neutrophil Aging and Periodontal Immune Homeostasis CD300lf调节中性粒细胞老化和牙周免疫稳态
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-11-03 DOI: 10.1177/00220345251382572
Z. Zou, J. Guo, J. Li, Y. Bao, W. Xie, Q. Hu, L. Wen, H. Lu, X. Liu, Q. Dong, J. Fang, Q. Hu, Y. Cao, Z. Wang, L. Yang, X. Wang
Immune alterations, such as neutrophil dysfunction, significantly affect the progression and outcome of periodontitis, a prevalent inflammatory disease. Despite this, the molecular mechanisms driving neutrophil dysregulation in periodontitis remain poorly understood. In this study, we demonstrate that CD300lf, a critical immune regulator, is markedly downregulated in neutrophils from a periodontitis mouse model and human patients. The loss of CD300lf accelerates neutrophil aging, as evidenced by increased reactive oxygen species production, the senescence-associated secretory phenotype with elevated IL-1β and S100A8/A9 levels, and heightened neutrophil extracellular trap formation. Mechanistically, CD300lf deficiency leads to MyD88 upregulation, indicating a shift toward a proinflammatory state. Inhibition of MyD88 effectively reduces periodontal inflammation in CD300lf-deficient mice. Furthermore, targeting CD300lf with its known ligand ceramide alleviates periodontitis and mitigates the aging phenotype of neutrophils. These findings underscore the critical role of the CD300lf/MyD88 axis in neutrophil homeostasis and suggest that modulation of CD300lf through ceramide presents a promising therapeutic strategy for periodontitis.
免疫改变,如中性粒细胞功能障碍,显著影响牙周炎的进展和结果,这是一种普遍的炎症性疾病。尽管如此,在牙周炎中驱动中性粒细胞失调的分子机制仍然知之甚少。在这项研究中,我们证明了CD300lf,一个关键的免疫调节因子,在来自牙周炎小鼠模型和人类患者的中性粒细胞中显着下调。CD300lf的缺失加速了中性粒细胞的衰老,这可以通过活性氧产生的增加、衰老相关的分泌表型(IL-1β和S100A8/A9水平升高)以及中性粒细胞胞外陷阱形成的增加来证明。从机制上讲,CD300lf缺乏导致MyD88上调,表明向促炎状态转变。抑制MyD88可有效减轻cd300lf缺失小鼠的牙周炎症。此外,靶向CD300lf及其已知的配体神经酰胺可缓解牙周炎并减轻中性粒细胞的衰老表型。这些发现强调了CD300lf/MyD88轴在中性粒细胞稳态中的关键作用,并表明通过神经酰胺调节CD300lf是治疗牙周炎的一种有希望的策略。
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引用次数: 0
TMD Diagnosis Using a Masked Self-Supervised Tabular Transformer. 用掩模自监督表格变压器诊断TMD。
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-24 DOI: 10.1177/00220345251376974
Y-H Lee,J H Lee,Q-S Auh,S Lee,D Nixdorf,A Chaurasia
Temporomandibular disorders (TMDs) encompass a heterogeneous group of musculoskeletal conditions involving the temporomandibular joint (TMJ), masticatory muscles, and associated structures. Diagnosis remains challenging due to overlapping symptoms, multifactorial etiology, and variability across clinical settings. To address these limitations, we developed the Gated Attention Tabular Transformer (GATT), a novel deep-learning model that uses masked self-supervised learning and gated attention mechanisms, to classify TMD subgroups based on the diagnostic criteria for TMD (DC/TMD). A total of 4,644 structured clinical records from a university-based registry were analyzed, comprising 3,524 female and 1,120 male patients (mean age 36.9 ± 14.7 y), across 12 core TMD subgroups. GATT achieved robust diagnostic performance with area under the receiver-operating characteristic curve values ranging from 0.815 to 1.000, sensitivity from 0.652 to 1.000, and specificity from 0.773 to 1.000. The model significantly outperformed conventional machine-learning methods including logistic regression, random forest, support vector machine, and XGBoost as well as advanced tabular deep-learning models such as TabNet, TabTransformer, AutoGluon Tabular Predictor, and FT-Transformer. Shapley additive explanations (SHAP) analysis revealed "pain-free opening" (SHAP = 6.78, P < 0.001) and "current TMJ noise" (SHAP = 2.87, P = 0.003) as key features of mechanical TMJ disorders. Co-occurrence network analysis uncovered side-specific clustering and potential time-lagged progression between bilateral TMJs. These findings demonstrate the feasibility of using deep learning to classify heterogeneous TMD subgroups using only structured clinical data, without the need for imaging. The GATT model offers an accurate, explainable, and scalable tool to support clinician-assisted diagnosis and reduce variability in TMD management in real-world practice. These results support the integration of AI-driven tools such as GATT into clinical workflows for standardized, efficient, and patient-specific TMD diagnosis.
颞下颌关节疾病(TMDs)包括一组异质性的肌肉骨骼疾病,涉及颞下颌关节(TMJ)、咀嚼肌和相关结构。由于症状重叠、多因素病因和临床环境的可变性,诊断仍然具有挑战性。为了解决这些限制,我们开发了门控注意表转换器(GATT),这是一种新型的深度学习模型,使用屏蔽自监督学习和门控注意机制,根据TMD的诊断标准(DC/TMD)对TMD子组进行分类。研究人员分析了来自大学注册中心的4644份结构化临床记录,包括3524名女性和1120名男性患者(平均年龄36.9±14.7岁),涵盖12个核心TMD亚组。GATT具有较强的诊断能力,患者工作特征曲线下面积为0.815 ~ 1.000,灵敏度为0.652 ~ 1.000,特异度为0.773 ~ 1.000。该模型明显优于传统的机器学习方法,包括逻辑回归、随机森林、支持向量机和XGBoost,以及先进的表格深度学习模型,如TabNet、TabTransformer、AutoGluon tabular Predictor和FT-Transformer。Shapley加性解释(SHAP)分析显示,“无痛开口”(SHAP = 6.78, P < 0.001)和“当前TMJ噪声”(SHAP = 2.87, P = 0.003)是机械性TMJ障碍的主要特征。共发生网络分析揭示了两侧tmj之间的侧特异性聚类和潜在的时滞进展。这些发现表明,仅使用结构化临床数据,而无需成像,就可以使用深度学习对异质TMD亚组进行分类。GATT模型提供了一个准确的、可解释的、可扩展的工具,以支持临床辅助诊断,并减少现实世界实践中TMD管理的可变性。这些结果支持将GATT等人工智能驱动的工具整合到临床工作流程中,以实现标准化、高效和针对患者的TMD诊断。
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引用次数: 0
Sulfur Species in Zinc-Rich Condylar Zones of a Rat Temporomandibular Joint. 大鼠颞下颌关节富锌髁带的硫种。
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-23 DOI: 10.1177/00220345251361124
B H Lee,Z Yang,Y Wang,J Levy,N Tamura,S Webb,S Bone,S P Ho
We performed synchrotron-based micro-X-ray absorption near-edge spectroscopy (µ-XANES) coupled with micro-X-ray fluorescence (µ-XRF) for the identification of elements that included biometal zinc (Zn) and nonmetal sulfur (S) (and its species) in the condylar zones of a rat temporomandibular joint (TMJ). Zone-specific spatial localization of biometal Zn and nonmetal S from a materials viewpoint when correlated with hypoxia inducible factor-1α (HIF-1α) (a surrogate for tissue oxygenation) can provide insights into Zn-specific redox pathways at the vulnerable subchondral interface. Histologic localization of Zn, HIF-1α, and sulfur-rich proteoglycans (PGs) were mapped using an optical microscope. The µ-XRF maps coupled with site-specific micro-X-ray diffraction (µ-XRD) patterns were used to underline Zn-incorporated biological apatite in the subchondral bone and the bone of a rat TMJ condyle. Results demonstrated an association between Zn, PG, and HIF-1α histologic maps with µ-XRF, µ-XANES, and µ-XRD data and provided insights into plausible biological S species in Zn-enriched zones of a rat TMJ condyle. Spatially localized Zn and S underscore their roles in cell and tissue functions in a zone-specific manner. Elemental Zn with organic and inorganic S species at the cartilage-bone interface and the biomineral phase of Zn-enriched biological apatite from subchondral bone to condylar bone were ascertained using µ-XRF-XANES and µ-XRF-XRD. The coupled µ-XRF-XANES in situ complemented with µ-XRF-XRD in situ and immunohistochemistry provided valuable biological insights into zone-specific biological pathways in rat TMJ condyles. Based on these data, we present a workflow to reliably map and correlate S species within Zn-enriched regions of cartilage, bone, and their interface. We suggest the use of this correlative and complementary microspectroscopic spatial information for zone-specific localization of biometal Zn and nonmetal S to gain insights into plausible microanatomy-specific oxidative stress in the TMJ.
采用同步微x射线吸收近边光谱法(µ-XANES)结合微x射线荧光法(µ-XRF)对大鼠颞下颌关节(TMJ)髁突区生物金属锌(Zn)和非金属硫(S)(及其种类)元素进行了鉴定。从材料的角度来看,生物金属锌和非金属S的区域特异性空间定位与缺氧诱导因子-1α (HIF-1α)(组织氧合的替代品)相关,可以提供对脆弱的软骨下界面上锌特异性氧化还原途径的见解。利用光学显微镜绘制Zn、HIF-1α和富硫蛋白聚糖(pg)的组织定位图。采用微x射线衍射(µ-XRD)图谱和微x射线衍射图谱对大鼠颞下颌关节髁软骨下骨和骨中的锌结合生物磷灰石进行了分析。结果表明,Zn、PG和HIF-1α的组织学图谱与µ-XRF、µ-XANES和µ-XRD数据之间存在关联,并为大鼠TMJ髁富锌区可能存在的生物S物种提供了见解。空间定位Zn和S强调了它们在细胞和组织功能中的作用,以区域特异性的方式。采用微-XRF-XANES和微-XRF-XRD测定了元素Zn在软骨-骨界面的有机和无机S态,以及从软骨下骨到髁突骨的富锌生物磷灰石的生物矿物相。耦合的µ-XRF-XANES原位与µ-XRF-XRD原位和免疫组织化学相结合,为大鼠TMJ髁的区域特异性生物学途径提供了有价值的生物学见解。基于这些数据,我们提出了一种工作流程来可靠地绘制和关联软骨、骨骼及其界面中富锌区域内的S物种。我们建议使用这种相关和互补的显微光谱空间信息来定位生物金属锌和非金属S的区域特异性定位,以深入了解TMJ中可能的微观解剖特异性氧化应激。
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引用次数: 0
Uncovering the Genetic Architecture of NSCPO in Chinese via Subtype GWAS. 通过GWAS亚型揭示中国人NSCPO的遗传结构。
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-22 DOI: 10.1177/00220345251378124
Y You,Y Li,S Zhang,M Yao,J Sun,H Liu,B Shi,Z Jia
Nonsyndromic cleft palate only (NSCPO) significantly impairs swallowing and speech, reducing quality of life. While surgical interventions offer some improvement, full recovery remains challenging, underscoring the need for a deeper understanding of its etiology. This study aimed to investigate the genetic architecture of nonsyndromic cleft palate only (NSCPO) in the Han Chinese population, focusing on identifying novel susceptibility loci by leveraging data from previous genome-wide association studies and functional genomic datasets from the ENCODE project. We identified significant associations between NSCPO subtypes (incomplete cleft palate and hard and soft cleft palate) and variants such as rs660975 in IRF6, rs3758244 in CDC37L1, and rs4880224 in BNIP3. Functional validation studies, including chromatin conformation capture and dual-luciferase assays, demonstrated that these single-nucleotide polymorphisms influence enhancer activity, thereby affecting gene expression. In addition, subtype-specific analyses revealed novel associations that may be obscured in mixed phenotypic cohorts. The findings highlight the importance of investigating genetic contributions at the subtype level to elucidate the complex etiology of cleft palate and demonstrate that the associated variants have functional effects in vitro, suggesting their roles in the pathogenesis of NSCPO.
非综合征性腭裂(NSCPO)严重损害吞咽和语言,降低生活质量。虽然手术干预提供了一些改善,但完全恢复仍然具有挑战性,强调需要更深入地了解其病因。本研究旨在研究汉族人群非综合征性腭裂(NSCPO)的遗传结构,重点利用以往全基因组关联研究数据和ENCODE项目的功能基因组数据集,确定新的易感位点。我们发现NSCPO亚型(不完全性腭裂和软硬腭裂)与IRF6中的rs660975、CDC37L1中的rs3758244和BNIP3中的rs4880224等变异之间存在显著关联。功能验证研究,包括染色质构象捕获和双荧光素酶测定,表明这些单核苷酸多态性影响增强子活性,从而影响基因表达。此外,亚型特异性分析揭示了可能在混合表型队列中被模糊的新关联。这些发现强调了在亚型水平上研究遗传贡献对阐明腭裂复杂病因的重要性,并证明相关变异在体外具有功能作用,表明它们在NSCPO发病机制中的作用。
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引用次数: 0
Decoding Spatiotemporal Microenvironmental Changes in Oral Carcinogenesis. 解码口腔癌变的时空微环境变化。
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-22 DOI: 10.1177/00220345251378087
D Yang,Z Wang,Q Shang,P Yuan,S Pan,W Li,J Cai,J Yang,D Zhang,Q Chen,H Dan,H Xu
Oral carcinogenesis is a multistage process involving epithelial hyperplasia, dysplasia, and carcinoma. Understanding the dynamic changes within the microenvironment during this process is critical for preventing disease progression. In this study, we conducted a multi-omics spatiotemporal analysis to unravel microenvironment remodeling in the carcinogenesis of oral mucosa. Our analysis identified a subset of oral epithelial progenitor cells (OEPCs) with high IGFBP2 expression. These IGFBP2high OEPCs exhibited enhanced proliferative capacity and diminished differentiation potential, implicating their pivotal role in carcinogenesis. Additionally, we observed increasing infiltration of regulatory B cells (Bregs) during the precancerous stages. The interaction between Bregs and IGFBP2high OEPCs was amplified via the TGF-β signaling pathway. Spatial transcriptomics confirmed the close proximity and interaction of these 2 cell types. Experiments revealed a progressive increase in IGFBP2high OEPCs and Bregs during the precancerous stages. However, as cancer advanced, the infiltration of Bregs stagnated and even declined. This finding suggests that while tumor initiation and progression represent a continuous process, the regulatory mechanisms involved may not remain entirely the same across these stages. Consequently, focusing exclusively on the cancerous stage risks overlooking abnormalities that emerge during the precancerous phase. In conclusion, this study integrates multi-omics spatiotemporal data to uncover the evolution of the microenvironment during the carcinogenesis of oral mucosa. Specifically, Bregs were observed to gradually accumulate and spatially associate with IGFBP2high OEPCs via the TGF-β signaling pathway, correlating with a disrupted balance between proliferation and differentiation, which may contribute to triggering malignancy.
口腔癌的发生是一个多阶段的过程,包括上皮增生、不典型增生和癌。了解微环境在这一过程中的动态变化对于预防疾病进展至关重要。在这项研究中,我们通过多组学时空分析来揭示口腔黏膜微环境重塑在癌变中的作用。我们的分析发现了一个高表达IGFBP2的口腔上皮祖细胞(OEPCs)亚群。这些高igfbp2的OEPCs表现出增强的增殖能力和减弱的分化潜力,暗示它们在致癌过程中起关键作用。此外,我们观察到在癌前阶段调节性B细胞(Bregs)的浸润增加。Bregs与IGFBP2high的OEPCs之间的相互作用通过TGF-β信号通路被放大。空间转录组学证实了这两种细胞类型的密切接近和相互作用。实验显示,在癌前阶段,igfbp2高水平的OEPCs和Bregs逐渐增加。然而,随着癌症的进展,Bregs的浸润停滞甚至下降。这一发现表明,虽然肿瘤的发生和发展是一个连续的过程,但在这些阶段所涉及的调节机制可能并不完全相同。因此,只关注癌症阶段有可能忽视癌前阶段出现的异常。综上所述,本研究整合多组学时空数据,揭示口腔黏膜癌变过程中微环境的演变。具体而言,Bregs通过TGF-β信号通路逐渐积累并与igfbp2高的OEPCs存在空间关联,与增殖与分化之间的平衡被破坏有关,这可能有助于引发恶性肿瘤。
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引用次数: 0
Beyond the Surface: Mechanical and Porosity Gradients in Eroded Enamel. 表面以外:侵蚀牙釉质的力学和孔隙梯度。
IF 7.6 1区 医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-22 DOI: 10.1177/00220345251385464
H L Ooi,D Bartlett,A Almansour,A LeBlanc,D White,A Morrell,O Addison
Enamel erosion alters the structural integrity of the tooth surface, which can be measured using indentation techniques. However, traditional single-load indentation methods assume homogeneity within the eroded enamel, overlooking potential stratification within the subsurface lesion. This study investigates the presence of mechanical and porosity gradients within the enamel following simulated dietary acid exposure and examines how lesion depth and structure change with continued erosion. We applied varying-load micro-indentation to human enamel subjected to citric acid challenge, revealing a distinct stratification of mechanical properties. A soft superficial layer (~1- to 2-µm thick) exhibited significantly reduced hardness and was easily removed by ultrasonication, indicating its fragility. Beneath this layer, mechanical properties stabilized despite prolonged acid exposure (~3 min), suggesting a saturation point in lesion development. Profilometric analysis confirmed that although material loss increased with erosion time, the depth of the altered subsurface zone remained constant. To explore the porosity distribution, we used a novel gold nanoparticle labeling technique coupled with synchrotron-based X-ray fluorescence imaging. Nanoparticles (~20 nm) penetrated to depths of 15 to 20 µm, aligning closely with mechanical gradients inferred from indentation measurements. These findings indicate that subsurface enamel exhibits not only mechanical stratification but also corresponding variations in porosity. Our results demonstrate the limitations of single-load indentation in characterizing erosion-affected enamel and highlight the utility of multiload approaches in detecting structural heterogeneity. The correlation between mechanical softening and increased porosity suggests that the enamel subsurfaces are differentially affected. These findings raise important implications for therapeutic intervention: should remineralization strategies shift from bulk mineral delivery to layer-specific, functionally informed repair?
牙釉质侵蚀会改变牙齿表面的结构完整性,这可以用压痕技术来测量。然而,传统的单负荷压痕方法假设侵蚀牙釉质内的均匀性,忽略了表面下病变内潜在的分层。本研究调查了在模拟饮食酸暴露后牙釉质内存在的力学和孔隙度梯度,并研究了损伤深度和结构如何随着持续侵蚀而变化。我们应用变负荷微压痕的人牙釉质受到柠檬酸挑战,揭示了机械性能的明显分层。软的表层(~1 ~ 2µm厚)硬度明显降低,超声容易去除,表明其易碎性。在这一层之下,尽管长时间暴露在酸中(~3分钟),但机械性能稳定,表明病变发展存在饱和点。轮廓分析证实,虽然物质损失随着侵蚀时间的增加而增加,但改变的地下区域的深度保持不变。为了探索孔隙度分布,我们使用了一种新的金纳米颗粒标记技术,结合基于同步加速器的x射线荧光成像。纳米颗粒(~20 nm)穿透深度为15至20微米,与压痕测量推断的机械梯度密切相关。这些结果表明,牙釉质不仅表现出力学分层,而且表现出相应的孔隙度变化。我们的研究结果证明了单负载压痕在表征侵蚀影响牙釉质方面的局限性,并强调了多负载方法在检测结构异质性方面的实用性。机械软化和孔隙度增加之间的相关性表明牙釉质亚表面受到不同程度的影响。这些发现为治疗干预提出了重要的意义:矿化策略是否应该从大量矿物质输送转向分层特异性、功能知情的修复?
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引用次数: 0
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Journal of Dental Research
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