Publications by authors named "Meili Ding"

Article Synopsis
  • Hypohidrotic ectodermal dysplasia (HED) is a genetic disorder leading to missing teeth and requires dentures for better chewing.
  • A study examined masticatory function changes in 10 Chinese HED patients from childhood to adolescence, comparing them to healthy controls using electromyography (EMG) to measure muscle activity during chewing.
  • Results showed that HED patients had lower muscle activity and masticatory efficiency, although their chewing function improved slightly with age, indicating they were still functionally inferior compared to individuals with normal dentition.
View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

Multimodal sensing platforms may offer reliable, fast results, but it is still challenging to incorporate biosensors with high discriminating ability in complex biological samples. Herein, we established a highly sensitive dual colorimetric/electrochemical monitoring approach for the detection of hydrogen sulfide (HS) utilizing Cu-doped In-based metal-organic frameworks (Cu/In-MOFs) combined with a versatile color selector software-based smartphone imaging device. HS can result in the enhancement of the electrochemical signal because of the electroactive substance copper sulfide (CuS), the decrease of the colorimetric signal of the characteristic absorption response caused by the strong coordination effect on Cu/In-MOFs, and the obvious changes of red-green-blue (RGB) values of images acquired via an intelligent smartphone.

View Article and Find Full Text PDF

Background: TFEB/6p21/VEGFA-amplified renal cell carcinoma (RCC) is rare and difficult to diagnose, with diverse histological patterns and immunohistochemical and poorly defined molecular genetic characteristics.

Case Presentation: We report a case of a 63-year-old male admitted in 2017 with complex histomorphology, three morphological features of clear cell, eosinophilic and papillary RCC and resembling areas of glomerular and tubular formation. The immunophenotype also showed a mixture of CD10 and P504s.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

The rational fabrication of point-of-care testing (POCT) featuring simplicity, rapidity, low cost, portability, high sensitivity and accuracy is crucial for maintaining food safety in resource-limited locations and home healthcare but remains challenging. Herein, we report a universal colorimetric-photothermal-smartphone triple-mode sensing platform for POC food-grade glutathione (GSH) detection. This simple sensing platform for GSH detection takes merits of three techniques: commercially available filter paper, thermometer and smartphone via an excellent CoFeCe-mediated oxidase-like activity.

View Article and Find Full Text PDF

Detection of biomarkers is very vital in the prevention, diagnosis and treatment of diseases. However, due to the poor accuracy and sensitivity of the constructed biosensors, we are now facing great challenges. In addressing these problems, nanohybrid-based dual mode biosensors including optical-optical, optical-electrochemical and electrochemical-electrochemical have been developed to detect various biomarkers.

View Article and Find Full Text PDF

Background: Myeloid Sarcoma with monocytic differentiation is rare and quite likely is missed by surgical pathologists. However it is frequently misdiagnosed because of its non-specific imaging and histological pattern.

Case Presentation: We report the case of a 64-year-old woman with gastric primary myeloid sarcoma with monocytic differentiatio.

View Article and Find Full Text PDF

Hydrogen sulfide (HS) can not only be regarded as a critical gas signal transduction substance, but also its excess levels can lead to a range of diseases. Currently, the accurate analysis combined with electrochemical (EC) or photothermal (PT) technology for HS in a complex biological system remains a significant challenge. Herein, an endogenous HS-triggered heterojunction cuprous oxide/gold/copper metal organic framework (CuO/Au/HKUST-1) nanoprobe is designed for dual-mode EC- second near-infrared (NIR-II)/PT analysis in tumor cells with high sensitivity and simplicity.

View Article and Find Full Text PDF

Hydrogen sulfide (HS) is a vital endogenous gas signal molecule undertaking numerous physiological functions such as biological regulation and cytoprotection. Herein, we developed an electrochemical (EC) and photothermal (PT) dual-readout signals method for HS detection based on a novel biosynthesis-mediated Ni-Fe-Cu LDH-to-sulfides transformation strategy. Interestingly, the Cu-based Ni-Fe LDH (Ni-Fe-Cu LDH) can act as the Cu source to react with HS, resulting in the in-situ generation of CuS on Ni-Fe-Cu LDH surfaces.

View Article and Find Full Text PDF

The rational design of tumor microenvironment (TME)- multifunctional stimuli-responsive nanocomposites is appealing for effective cancer treatment. However, multidrug resistance remains an obstacle to construct responsive oncotherapy. Herein, a novel MoS/PDA-TPP nanocomposite loaded with chemotherapy drug of doxorubicin (DOX) is designed for TME dual-response and synergistically enhanced anti-tumor therapy based on the tumor-specific mitochondria accumulation ability and photothermal (PTT) therapy.

View Article and Find Full Text PDF

Metal-organic frameworks (MOFs) could serve as efficient matrixes to immobilize cellulase because of their high stability and porous morphology. Herein, the Zr-based MOFs (UiO-66 and UiO-66-NH) assisted 20 wt% high-solids hydrolysis of untreated corncob residues (CRs) at low enzyme loading was investigated. Glucan hydrolysis yields increased to 60.

View Article and Find Full Text PDF

The mass production of hierarchically porous metal-organic frameworks (HP-MOFs) with adjustable morphology and size as well as retained crystallinity is highly desirable yet challenging. Herein, we have developed a versatile post-synthetic ligand substitution (PSLS) strategy to convert typical microporous MOFs and even their composites to HP-MOFs and their composites at a 10 g level and beyond in a simple reflux system. The resulting HP-MOFs feature intrinsic micropores and abundant defective mesopores, which greatly facilitate the transport and activation of large substrates for stable and efficient heterogeneous catalysis.

View Article and Find Full Text PDF

Zeolitic imidazolate frameworks (ZIFs) hold great potential for carbon capture, while a major challenge for the practical application of ZIFs is the development of convenient three-dimensional bulk materials. Here, sustainable and biodegradable bacterial cellulose (BC) was used as the substrate for ZIF growth. Amino-functionalized ZIF-8 (ZIF-8-NH) was prepared within BC substrate via an in situ growth approach.

View Article and Find Full Text PDF

Unlabelled: Both clear cell renal carcinoma (ccRCC) and clear cell carcinoma of the ovary (CCOC) have a clear cytoplasmic morphological feature, hence it is difficult to identify metastatic ccRCC and CCOC by morphology alone. At present, there are no effective immunohistochemical markers to distinguish between these two tumors. Studies have shown that the clear cytoplasm of ccRCC is mainly caused by cholesterol-rich lipids in the cytoplasm, while that of CCOC is due to the accumulation of cytoplasmic glycogen.

View Article and Find Full Text PDF

Objectives: The purpose of this randomized controlled trial was to compare the 24-month success rates of indirect pulp treatment (IPT) and iRoot BP Plus pulpotomy of primary molars with extremely deep caries.

Materials And Methods: Generally healthy children aged 3-7 years requiring general anesthesia for treating primary molars with extremely deep caries or reversible pulpitis were recruited. Patients with systemic disease, mental health problems, or manifestations of irreversible pulpitis were excluded.

View Article and Find Full Text PDF

The purpose of this study was to characterize the facial morphology of Chinese children with hypohidrotic ectodermal dysplasia (HED) and quantify facial changes after prosthetic treatment. 3-D facial images of 12 HED children were taken and their facial morphology was compared against 28 healthy controls. Facial changes due to denture placement were also quantified.

View Article and Find Full Text PDF

Metal-organic frameworks (MOFs) have been recognized as one of the most important classes of porous materials due to their unique attributes and chemical versatility. Unfortunately, some MOFs suffer from the drawback of relatively poor stability, which would limit their practical applications. In the recent past, great efforts have been invested in developing strategies to improve the stability of MOFs.

View Article and Find Full Text PDF

Background: Medulloblastoma (MB) is a malignant intracranial tumor. Cisplatin is a broad-spectrum antitumor drug. It is important to study the cisplatin resistance of MB cells for the treatment of MB.

View Article and Find Full Text PDF

Homogeneous molecular catalysts and heterogeneous catalysts possess complementary strengths, and are of great importance in laboratory/commercial procedures. While various porous hosts, such as polymers, carbons, silica, metal oxides and zeolites, have been used in an attempt to heterogenize homogeneous catalysts, realizing the integration of both functions at the expense of discounting their respective advantages, it remains a significant challenge to truly combine their intrinsic strengths in a single catalyst without compromise. Here, we describe a general template-assisted approach to incorporating soluble molecular catalysts into the hollow porous capsule, which prevents their leaching due to the absence of large intergranular space.

View Article and Find Full Text PDF

Rapidly increasing atmospheric CO2 concentrations threaten human society, the natural environment, and the synergy between the two. In order to ameliorate the CO2 problem, carbon capture and conversion techniques have been proposed. Metal-organic framework (MOF)-based materials, a relatively new class of porous materials with unique structural features, high surface areas, chemical tunability and stability, have been extensively studied with respect to their applicability to such techniques.

View Article and Find Full Text PDF

Type 1 diabetes (T1D) is an autoimmune disease that is typically diagnosed in children. The aim of the present study was to identify potential genes involved in the pathogenesis of childhood T1D. Two datasets of mRNA expression in children with T1D were obtained from the Gene Expression Omnibus (GEO).

View Article and Find Full Text PDF

Epigallocatechin-3-gallate (EGCG), a polyphenol in green tea, is an effective antioxidant and possesses neuroprotective effects. Brain-derived neurotrophic factor (BDNF) and cyclic AMP response element-binding protein (CREB) are crucial for neurogenesis and synaptic plasticity. In this study, we aimed to assess the protective effects of EGCG against sevoflurane-induced neurotoxicity in neonatal mice.

View Article and Find Full Text PDF