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1.
Eur J Pharmacol ; 983: 176991, 2024 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-39265883

RESUMO

BACKGROUND: Laryngocarcinoma is a common malignancy in the upper respiratory tract. Enabled homolog (ENAH) is an actin-binding protein that is associated with the development of various cancers. However, its role and mechanism in laryngocarcinoma remain unknown. METHODS: The ENAH level in laryngocarcinoma was examined in silico, in vitro and in vivo. The prognostic analysis of the ENAH level was assessed on laryngocarcinoma patients. Gain- and loss-of-function assays were conducted in AMC-HN-8 and TU686 cells. Sh-ENAH-containing AMC-HN-8 cells were implanted into naked mice. The role and mechanism of ENAH in laryngocarcinoma were investigated by CCK-8, transwell, immunofluorescence, dual luciferase, RT-qPCR, immunohistochemistry, and western blotting experiments. RESULTS: The ENAH level was upregulated in laryngocarcinoma, which predicted a poor prognosis in laryngocarcinoma patients. Gain- and loss-of-function results showed that ENAH promoted proliferation, invasion and EMT of laryngocarcinoma cells. Moreover, ENAH was transcriptionally activated by YY1, and YY1/ENAH axis enhanced these malignant progresses of laryngocarcinoma cells. Besides, ENAH activated the PI3K/AKT pathway, and 740Y-P abolished the accelerative role of ENAH in proliferation, invasion and EMT of laryngocarcinoma cells. Furthermore, knockdown of ENAH reduced tumor size and weight, and the expression level of vimentin and PI3K/AKT pathway in tumor-bearing mice. CONCLUSION: ENAH transcriptionally activated by YY1 promotes cell growth, invasion and EMT of laryngocarcinoma through the activation of PI3K/AKT signaling.


Assuntos
Proliferação de Células , Neoplasias Laríngeas , Proteínas dos Microfilamentos , Fosfatidilinositol 3-Quinases , Proteínas Proto-Oncogênicas c-akt , Transdução de Sinais , Fator de Transcrição YY1 , Animais , Feminino , Humanos , Masculino , Camundongos , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células/genética , Transição Epitelial-Mesenquimal/genética , Regulação Neoplásica da Expressão Gênica , Neoplasias Laríngeas/patologia , Neoplasias Laríngeas/genética , Neoplasias Laríngeas/metabolismo , Camundongos Nus , Proteínas dos Microfilamentos/genética , Proteínas dos Microfilamentos/metabolismo , Invasividade Neoplásica , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Ativação Transcricional , Fator de Transcrição YY1/metabolismo , Fator de Transcrição YY1/genética
2.
Small ; : e2406319, 2024 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-39221550

RESUMO

In the domain of heterogeneous catalytic activation of peroxymonosulfate (PMS), high-valent metal-oxo (HVMO) species are widely recognized as potent oxidants for the abatement of organic pollutants. However, the generation selectivity and efficiency of HVMO are often constrained by stringent requirements for catalyst adsorption sites and electron transfer efficiency. In this study, a single-atom catalyst, CuSA/CNP&S, is synthesized featuring multiple types (planar/axial) of heteroatom coordination via an H-bond-assisted self-assembly strategy. It is confirmed that CuN3 active centers with axial S coordination are uniformly distributed in a carbon matrix modified by planar P atoms. CuSA/CNP&S activated PMS to selectively generate Cu(III)═OH species as the primary reactive oxygen species (ROS). The pseudo-first-order kinetic rate for bisphenol A degradation reached 1.51 min-1, a 17.57-fold increase compared to the unmodified CuSA/CN catalyst. Additionally, the CuSA/CNP&S catalyst demonstrates high efficiency and durability in removing contaminants from various aqueous matrices. Theoretical calculations and experimental results indicate that the intrinsic electric field generated by distal planar P atoms enhances electron transfer efficiency within the carbon matrix. Meanwhile, axial S coordination elevates the d-band center and tunes the eg * band broadening of Cu, thereby enhancing the adsorption selectivity for the terminal oxygen of PMS. This multitype coordination synergistically mitigates the issues of low selectivity and yield of HVMO species.

3.
Micromachines (Basel) ; 15(8)2024 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-39203589

RESUMO

Improvements in phase stability and dielectric characteristics can broaden the applications of zirconia in ceramics. Herein, a series of Y2O3-stabilized zirconia (YSZ) ceramics are synthesized using solid-state sintering, followed by an investigation into their phase evolution, grain size, dielectric constant, and breaking field. As the Y2O3 content increases from 0 wt% to 4 wt%, the as-grown YSZ ceramics undergo a distinct phase transformation, transitioning from monoclinic to monoclinic + tetragonal and further to monoclinic + tetragonal + cubic, before finally returning to monoclinic + cubic. Significant changes occur in the internal microstructure and grain size of the ceramics as the phase composition alters, resulting in a reduction in grain size from 3.17 µm to 0.27 µm. Moreover, their dielectric constants exhibit an increasing trend as the Y2O3 content increases, rising from 3.92 to 13.2. Importantly, the dielectric breakdown field of these YSZ ceramics shows a similar variation to the phase evolution, ranging from 0.11 to 0.15 MV/cm. This study sheds light on the phase evolution and dielectric properties of YSZ ceramics, offering an efficient strategy for enhancing their dielectric performances.

4.
Discov Oncol ; 15(1): 265, 2024 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-38967843

RESUMO

In this study, we investigated the role of the newly discovered lncRNA FLJ20021 in laryngeal cancer (LC) and its resistance to cisplatin treatment. We initially observed elevated lncRNA FLJ20021 levels in cisplatin-resistant LC cells (Hep-2/R). To explore its function, we transfected lncRNA FLJ20021 and cyclin-dependent kinase 1 (CDK1) into Hep-2/R cells, assessing their impact on cisplatin sensitivity and PANoptosis. Silencing lncRNA FLJ20021 effectively reduced cisplatin resistance and induced PANoptosis in Hep-2/R cells. Mechanistically, lncRNA FLJ20021 primarily localized in the nucleus and interacted with CDK1 mRNA, thereby enhancing its transcriptional stability. CDK1, in turn, promoted panapoptosis in a ZBP1-dependent manner, which helped overcome cisplatin resistance in Hep-2/R cells. This study suggests that targeting lncRNA FLJ20021 can be a promising approach to combat cisplatin resistance in laryngeal cancer by regulating CDK1 and promoting PANoptosis via the ZBP1 pathway. These findings open up possibilities for lncRNA-based therapies in the context of laryngeal cancer.

5.
Braz J Med Biol Res ; 57: e13528, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38896645

RESUMO

Unilateral vocal cord paralysis is frequently observed in patients who undergo thyroid surgery. This study explored the correlation between acoustic voice analysis (objective measure) and Voice Handicap Index (VHI, a self-assessment tool). One hundred and forty patients who had thyroid surgery with or without postoperative unilateral vocal cord paralysis (PVCP and NPVCP) were included. The patients were evaluated by the VHI and Dysphonia Severity Index (DSI) tools. VHI scores were significantly higher in PVCP patients than in NPVCP patients. Jitter (%) and shimmer (%) were significantly increased, whereas DSI was significantly decreased in PVCP patients. Receiver operating characteristics curve revealed that VHI scores were associated with the diagnosis of PVCP, of which VHI total score yielded an area under the curve (AUC) of 0.81. Among acoustic parameters, DSI was highly associated to PVCP (AUC=0.82, 95%CI=0.75 to 0.89). Moreover, we found a correlation between VHI scores and voice acoustic parameters. Among them, DSI had a moderate correlation with functional and VHI scores, as suggested by an R value of 0.41 and 0.49, respectively. VHI scores and acoustic parameters were associated with the diagnosis of PVCP.


Assuntos
Índice de Gravidade de Doença , Tireoidectomia , Paralisia das Pregas Vocais , Qualidade da Voz , Humanos , Paralisia das Pregas Vocais/etiologia , Paralisia das Pregas Vocais/fisiopatologia , Paralisia das Pregas Vocais/diagnóstico , Masculino , Feminino , Pessoa de Meia-Idade , Adulto , Tireoidectomia/efeitos adversos , Complicações Pós-Operatórias/diagnóstico , Acústica da Fala , Idoso , Curva ROC , Avaliação da Deficiência , Disfonia/etiologia , Disfonia/diagnóstico , Disfonia/fisiopatologia
6.
Pediatr Neonatol ; 2024 Mar 24.
Artigo em Inglês | MEDLINE | ID: mdl-38538402

RESUMO

BACKGROUND: This study was to explore the effectiveness of the ABCLOVE exercise on school-aged children with vocal nodules after the treatment of budesonide. METHODS: Eighty-six school-aged children with vocal nodules were divided into control and ABCLOVE therapy groups. Subjective voice assessment and dysphonia severity index (DSI) assessment were performed before and after the 3-month of therapy. RESULTS: A significant improvement was observed in the ABCLOVE therapy group as compared with the control group (p = 0.035). ABCLOVE therapy significantly reduced the hoarseness and roughness scores in school-aged children with vocal nodules. Additionally, a significant reduction in functional score, physical score, emotional score, and total pVHI score was observed in the ABCLOVE therapy group. Moreover, acoustic parameters including jitter (%) and shimmer (%) were significantly reduced, whereas MPT and DSI were increased in school-aged children with vocal nodules who received 3 months of ABCLOVE treatment. CONCLUSION: ABCLOVE therapy displayed effectiveness on school-aged children with vocal nodules after the treatment of budesonide.

7.
Ear Nose Throat J ; : 1455613241235513, 2024 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-38439622

RESUMO

Background: Benign central airway stenosis poses a significant challenge to respiratory and thoracic surgeons due to the high recurrence rate associated with current treatment methods, causing severe breathing difficulties and potentially life-threatening complications. This article aims to investigate the therapeutic efficacy and prospects of using coblation in the management of benign central airway stenosis in adults. Moreover, the pathogenesis of benign central airway stenosis was deeply explored to provide better guidance for future clinical treatments. Materials and Methods: This retrospective study examined patients with benign central airway stenosis who were treated at The Second Hospital of Hebei Medical University from 2017 to 2020. In addition, a comparative analysis of whole-genome sequencing was conducted between the aforementioned patient group and healthy populations to investigate the underlying etiology of this stenotic condition. Results: The present study encompassed 32 patients who underwent 43 treatments in total between 2017 and 2020. All patients exhibited alleviation of airway stenosis and an improvement in clinical symptoms following surgery, without any significant surgical or postoperative complications. Whole-genome analysis revealed significant changes in gene expression in the airway mucosa of patients with benign airway stenosis in comparison to healthy populations. A total of 91 differentially expressed genes were identified, among which 44 upregulated genes displayed characteristics of promoting inflammatory responses. Conclusion: Coblation demonstrates promise as an efficacious treatment modality for adults suffering from benign central airway stenosis, and its widespread application in clinical settings is anticipated. The direct pathogenesis of benign central airway stenosis involves airway lumen narrowing and obstruction resulting from excessive inflammation and proliferative granulation.

8.
Braz. j. med. biol. res ; 57: e13528, fev.2024. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1564159

RESUMO

Unilateral vocal cord paralysis is frequently observed in patients who undergo thyroid surgery. This study explored the correlation between acoustic voice analysis (objective measure) and Voice Handicap Index (VHI, a self-assessment tool). One hundred and forty patients who had thyroid surgery with or without postoperative unilateral vocal cord paralysis (PVCP and NPVCP) were included. The patients were evaluated by the VHI and Dysphonia Severity Index (DSI) tools. VHI scores were significantly higher in PVCP patients than in NPVCP patients. Jitter (%) and shimmer (%) were significantly increased, whereas DSI was significantly decreased in PVCP patients. Receiver operating characteristics curve revealed that VHI scores were associated with the diagnosis of PVCP, of which VHI total score yielded an area under the curve (AUC) of 0.81. Among acoustic parameters, DSI was highly associated to PVCP (AUC=0.82, 95%CI=0.75 to 0.89). Moreover, we found a correlation between VHI scores and voice acoustic parameters. Among them, DSI had a moderate correlation with functional and VHI scores, as suggested by an R value of 0.41 and 0.49, respectively. VHI scores and acoustic parameters were associated with the diagnosis of PVCP.

9.
RSC Adv ; 14(2): 1186-1194, 2024 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-38174285

RESUMO

This research employs first-principles calculations to address the challenges presented by processing complexity and low damage tolerance in transition metal borides. The study focuses on designing and investigating MAB phase compounds of M4AlB4 (M = Cr, Mo, W). We conduct a comprehensive assessment of the stability, phononic, electronic, elastic, and optical properties of Cr4AlB4, Mo4AlB4, and W4AlB4. The calculated results reveal formation enthalpies of -0.516, -0.490, and -0.336 eV per atom for Cr4AlB4, Mo4AlB4, and W4AlB4, respectively. Notably, W4AlB4 emerges as a promising precursor material for MABene synthesis, demonstrating exceptional thermal shock resistance. The dielectric constants ε1(0) were determined as 126.466, 80.277, and 136.267 for Cr4AlB4, Mo4AlB4, and W4AlB4, respectively. Significantly, W4AlB4 exhibits remarkably high reflectivity (>80%) within the wavelength range of 19.84-23.6 nm, making it an ideal candidate for extreme ultraviolet (EUV) reflective coatings. The insights gleaned from this study provide a strong research framework and theoretical guidance for advancing the synthesis of innovative MAB-phase compounds.

10.
Biochem Genet ; 2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37656330

RESUMO

A growing body of evidence suggests that miR-5189-3p plays a critical role in multiple diseases. This study aimed to investigate the function of miR-5189-3p in laryngeal squamous cell carcinoma (LSCC) and explore its underlying mechanisms. qRT-PCR was designed to determine the expression levels of miR-5189-3p and eukaryotic translation initiation factor 5A2 (EIF5A2), while CCK-8 assay was performed to measure the effects of miR-5189-3p on cell proliferation. Transwell assay was performed to evaluate cell invasion as well as migration, and wound healing assay was applied to demonstrate cell migratory ability. Target gene prediction and luciferase reporter assay were developed to screen the possible target gene of miR-5189-3p, and Western blot was designed to measure EIF5A2 protein expression. MiR-5189-3p was down-regulated in LSCC tissues and cell lines. Up-regulation of miR-5189-3p notably inhibited cell proliferation, invasion, and migration in HEP2 and FADU cells. EIF5A2 was the potential downstream gene of miR-5189-3p, and overexpression of miR-5189-3p apparently reduced EIF5A2 expression. Moreover, reintroduction of EIF5A2 rescued the tumor suppressive effects of miR-5189-3p. MiR-5189-3p functions as a tumor inhibitor in LSCC progression via directly regulating EIF5A2 and may be a potential therapeutic target for LSCC.

11.
ACS Sens ; 8(10): 3873-3881, 2023 10 27.
Artigo em Inglês | MEDLINE | ID: mdl-37707324

RESUMO

With the evolution of artificial intelligence, the explosive growth of data from sensory terminals gives rise to severe energy-efficiency bottleneck issues due to cumbersome data interactions among sensory, memory, and computing modules. Heterogeneous integration methods such as chiplet technology can significantly reduce unnecessary data movement; however, they fail to address the fundamental issue of the substantial time and energy overheads resulting from the physical separation of computing and sensory components. Brain-inspired in-sensor neuromorphic computing (ISNC) has plenty of room for such data-intensive applications. However, one key obstacle in developing ISNC systems is the lack of compatibility between material systems and manufacturing processes deployed in sensors and computing units. This study successfully addresses this challenge by implementing fully CMOS-compatible TiN/HfOx-based neuristor array. The developed ISNC system demonstrates several advantageous features, including multilevel analogue modulation, minimal dispersion, and no significant degradation in conductance (@125 °C). These characteristics enable stable and reproducible neuromorphic computing. Additionally, the device exhibits modulatable sensory and multi-store memory processes. Furthermore, the system achieves information recognition with a high accuracy rate of 93%, along with frequency selectivity and notable activity-dependent plasticity. This work provides a promising route to affordable and highly efficient sensory neuromorphic systems.


Assuntos
Inteligência Artificial , Substâncias Explosivas , Encéfalo , Comércio , Movimento
12.
BMC Oral Health ; 23(1): 567, 2023 08 13.
Artigo em Inglês | MEDLINE | ID: mdl-37574562

RESUMO

OBJECTIVE: We aimed to develop a 5-year overall survival prediction model for patients with oral tongue squamous cell carcinoma based on machine learning methods. SUBJECTS AND METHODS: The data were obtained from electronic medical records of 224 OTSCC patients at the PLA General Hospital. A five-year overall survival prediction model was constructed using logistic regression, Support Vector Machines, Decision Tree, Random Forest, Extreme Gradient Boosting, and Light Gradient Boosting Machine. Model performance was evaluated according to the area under the curve (AUC) of the receiver operating characteristic curve. The output of the optimal model was explained using the Python package (SHapley Additive exPlanations, SHAP). RESULTS: After passing through the grid search and secondary modeling, the Light Gradient Boosting Machine was the best prediction model (AUC = 0.860). As explained by SHapley Additive exPlanations, N-stage, age, systemic inflammation response index, positive lymph nodes, plasma fibrinogen, lymphocyte-to-monocyte ratio, neutrophil percentage, and T-stage could perform a 5-year overall survival prediction for OTSCC. The 5-year survival rate was 42%. CONCLUSION: The Light Gradient Boosting Machine prediction model predicted 5-year overall survival in OTSCC patients, and this predictive tool has potential prognostic implications for patients with OTSCC.


Assuntos
Carcinoma de Células Escamosas , Hemostáticos , Neoplasias da Língua , Humanos , Fibrinogênio , Aprendizado de Máquina
13.
Cancer Med ; 12(18): 19260-19271, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37635388

RESUMO

BACKGROUND: To investigate the correlation between computed tomography (CT) radiomic characteristics and key genes for cervical lymph node metastasis (LNM) in oral squamous cell carcinoma (OSCC). METHODS: The region of interest was annotated at the edge of the primary tumor on enhanced CT images from 140 patients with OSCC and obtained radiomic features. Ribonucleic acid (RNA) sequencing was performed on pathological sections from 20 patients. the DESeq software package was used to compare differential gene expression between groups. Weighted gene co-expression network analysis was used to construct co-expressed gene modules, and the KEGG and GO databases were used for pathway enrichment analysis of key gene modules. Finally, Pearson correlation coefficients were calculated between key genes of enriched pathways and radiomic features. RESULTS: Four hundred and eighty radiomic features were extracted from enhanced CT images of 140 patients; seven of these correlated significantly with cervical LNM in OSCC (p < 0.01). A total of 3527 differentially expressed RNAs were screened from RNA sequencing data of 20 cases. original_glrlm_RunVariance showed significant positive correlation with most long noncoding RNAs. CONCLUSIONS: OSCC cervical LNM is related to the salivary hair bump signaling pathway and biological process. Original_glrlm_RunVariance correlated with LNM and most differentially expressed long noncoding RNAs.

14.
Pharmacology ; 108(4): 321-330, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37232038

RESUMO

INTRODUCTION: Tumor exosome-derived miRNAs play important roles in the human laryngocarcinoma. However, it is still unknown if exosome miR-552 is involved in the laryngocarcinoma. The aim of the current study was to explore exosome miR-552's role in laryngocarcinoma and its underlying mechanisms. METHODS: Hep-2 exosome was characterized by transmission electron microscopy and nanoparticle tracking technology. CCK-8 was used to determine cell viability, and a xenograft animal model was used to determine the tumorigenicity. qPCR and Western blotting were used to measure the changes in target biomarkers. Luciferase reporter assay was used to evaluate the interactions between miR-552 and PTEN. miRNA sequencing was used to check the changes in miRNA profiles. RESULTS: miR-552 was upregulated in the laryngocarcinoma patients and was positively correlated to the cell proliferation and tumor growth. PTEN was identified as a direct target of miR-552. Hep-2 exosome is featured by high expression of miR-552 and treatment of Hep-2 exosome enhanced cell proliferation and tumorigenicity. The underlying mechanisms revealed that treatment of exosomes enhanced the malignant transformation of recipient cells in part by regulating epithelial-mesenchymal transition. CONCLUSION: Exosome miR-552 promotes laryngocarcinoma cells' malignant progression in part by the regulation of the PTEN/TOB1 axis.


Assuntos
Exossomos , MicroRNAs , Animais , Humanos , Exossomos/genética , Exossomos/metabolismo , Transdução de Sinais , MicroRNAs/genética , MicroRNAs/metabolismo , Proliferação de Células/genética , Linhagem Celular Tumoral , Proteínas Supressoras de Tumor/metabolismo , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo , PTEN Fosfo-Hidrolase/genética , PTEN Fosfo-Hidrolase/metabolismo
15.
Nanoscale ; 15(6): 2567-2572, 2023 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-36652196

RESUMO

Metasurfaces are artificially structured surfaces able to control the properties of light at subwavelength scales. While, initially, they have been proposed as means to control classical optical fields, they are now emerging as nanoscale sources of quantum light, in particular of entangled photons with versatile properties. Geometric resonances in metasurfaces have been recently used to engineer the frequency spectrum of entangled photons, but the emission directivity was so far less studied. Here, we generate photon pairs via spontaneous parametric down conversion from a metasurface supporting a quasi-bound state in the continuum (BIC) leading to remarkable emission directivities. The pair generation rate is enhanced 67 times compared to the case of an unpatterned film of the same thickness and material. At the wavelength of the quasi-BIC resonance, photons are mostly emitted backwards, while their partners, spectrally detuned by only 8 nm, are emitted forwards. This behavior demonstrates fine spectral splitting of entangled photons and their bi-directional emission, never before observed in nanoscale sources. We expect this work to be a starting point for the efficient demultiplexing of photons in nanoscale quantum optics.

16.
Eur Geriatr Med ; 14(1): 9-17, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36445640

RESUMO

BACKGROUND: Previous studies have suggested that increased antioxidant intakes might reduce risk of cognitive disorders including Alzheimer's disease (AD). Which avenue of antioxidant intake (vitamin E/C) is more effective for decreasing risk, however, is largely unknown. OBJECTIVES: To quantitatively investigate the relationships between the pattern of antioxidant intakes and risks of dementia and cognitive decline. METHODS: We searched all related prospective cohort studies reporting antioxidant intakes (diet and/or supplement) from patients with cognitive disorders. We conducted dose-response meta-analyses to assess potential linear and non-linear dose-response relationships. Summary RRs and 95% CIs were calculated using a random- or fixed-effects model. RESULTS: 73 eligible cohort studies totaling > 28,257 participants were included in the meta-analysis; the pooled relative risks of AD were 0.75 (95% CI 0.57-0.99; I2 = 59.9%) for the dietary only intake of vitamin E, 0.73 (95% CI 0.54-1.00; I2 = 0%) for the dietary plus supplemental intake of vitamin E, and 0.70 (95% CI 0.51-0.95; I2 = 0%) for the dietary plus supplemental intake of vitamin C. Moreover, pooled RRs of AD and vitamin C intake per 20 mg/day increase were 0.98 (95% CI 0.97-0.99) via dietary plus supplemental intake, 0.98 (95% CI 0.96-1.00) in the dietary only intake and 0.98 (95% CI 0.98-0.99) in the overall intake. There were no significant associations of all-cause dementia or cognitive impairment no dementia with the antioxidant intake. CONCLUSIONS: The risk of incident AD is significantly reduced by higher consumption of vitamin C by the intake avenue of diet plus supplement.


Assuntos
Doença de Alzheimer , Disfunção Cognitiva , Humanos , Antioxidantes/uso terapêutico , Estudos Prospectivos , Vitamina E , Ácido Ascórbico/uso terapêutico , Doença de Alzheimer/epidemiologia , Doença de Alzheimer/prevenção & controle , Disfunção Cognitiva/epidemiologia , Vitaminas
17.
Front Oncol ; 12: 1063477, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36465348

RESUMO

Adenoid cystic carcinoma (ACC) is a malignant tumor that originates from exocrine gland epithelial cells. We profiled the transcriptomes of 49,948 cells from paracarcinoma and carcinoma tissues of three patients using single-cell RNA sequencing. Three main types of the epithelial cells were identified into myoepithelial-like cells, intercalated duct-like cells, and duct-like cells by marker genes. And part of intercalated duct-like cells with special copy number variations which altered with MYB family gene and EN1 transcriptomes were identified as premalignant cells. Developmental pseudo-time analysis showed that the premalignant cells eventually transformed into malignant cells. Furthermore, MYB and MYBL1 were found to belong to two different gene modules and were expressed in a mutually exclusive manner. The two gene modules drove ACC progression into different directions. Our findings provide novel evidence to explain the high recurrence rate of ACC and its characteristic biological behavior.

18.
J Oncol ; 2022: 3760766, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36131787

RESUMO

Background: Cisplatin resistance is observed in patients with laryngeal cancer. The present study was designed to explore the efficacy of oxaliplatin on laryngeal cancer and elucidate the underlying mechanisms. Methods: Cell viability was determined by using MTT assays. Cell apoptosis was determined by using annexin V and propidium iodide (PI) staining. Flow cytometry and immunofluorescence were applied to determine the levels of calreticulin (CALR) and DiD (1,1-dioctadecyl-3,3,3,3-tetramethylindodicarbocyanine). Flow cytometry was applied to analyze the levels of CD83, CD86, IFN-γ-producing CD8+ T cells, and CD4+CD25+FoxP3+ Tregs. The levels of adenosine triphosphate (ATP) were determined by using a chemiluminescent ATP kit and cytokines were determined by using specific enzyme-linked immunosorbent assays (ELISAs). The levels of HMGB1 were determined by using Western blot and ELISA, respectively. The xenograft animal model was constructed to evaluate the antitumor effects of oxaliplatin. Results: Oxaliplatin inhibited cell growth, promoted cell apoptosis, and induced the levels of CALR, ATP, and high mobility group box protein 1 (HMGB1) in Hep-2 cells. Oxaliplatin-treated Hep-2 cells increased the intensity of DiD and the levels of CD83 and CD86 in dendritic cells (DCs), as well as induced the supernatant IL-6 and TNF-α. Oxaliplatin-treated primary laryngeal cancer cell-pulsed DCs increased the IFN-γ-producing CD8+ T cells and suppressed CD4+CD25+FoxP3+ Tregs. In vivo data showed that oxaliplatin suppressed tumor growth and increased the populations of CD86+CD80+ and CD8+CD45+ cells in the tumor tissues. Conclusion: Treatment with oxaliplatin inhibited laryngeal cancer cells by inducing immunogenic cell death.

19.
J Craniofac Surg ; 33(6): 1720-1724, 2022 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-36054893

RESUMO

ABSTRACT: The skin redraping method for medial epicanthoplasty is characterized by some shortcomings which warrants modification. In this study, clinical data of 193 patients who underwent medial epichanthoplasty by the modified skin redraping technique or the classic skin redraping technique were reviewed retrospectively. The patients underwent operation between May 2018 and June 2020 and were followed up for not less than 6 months. Interepicanthal distance, interpupillary distance, patient satisfaction, and postoperative complications were evaluated. In terms of interepicanthal distance/inter-pupillary distance ratio (P > 0.05) and satisfaction score (P = 0.759), the modified skin redraping technique and the classic skin redraping technique were similar. In the classic skin redraping group, there were 3 cases of visible scarring in the lower eyelid, corresponding to significantly more cases than in the modified skin redraping group (n = 0, P < 0.001). There were more out-fold cases in the modified skin redraping group (76/90) than in the classic skin redraping group (17/88) (P < 0.001). Utilizing the modified skin redraping medial epicanthoplasty can prevent medial hooding of the upper eyelid, reduce the probability of visible scarring, and produce more out-fold with concurrent double eyelidplasty compared with classic skin redraping epicanthoplasty. Level of evidence: IV.


Assuntos
Blefaroplastia , Blefaroplastia/métodos , Estudos de Casos e Controles , Cicatriz/cirurgia , Humanos , Estudos Retrospectivos , Resultado do Tratamento
20.
Oral Dis ; 2022 Aug 21.
Artigo em Inglês | MEDLINE | ID: mdl-35989554

RESUMO

OBJECTIVES: We assessed the potential prognostic significance of the preoperative systemic inflammation index, platelet-to-lymphocyte ratio, and neutrophil-to-lymphocyte ratio in patients who underwent surgical resection. SUBJECTS AND METHODS: This retrospective study included 224 patients with clinicopathologically confirmed squamous carcinoma of the tongue who underwent surgery between August 2009 and December 2017. The optimal cut-off values for the indices were determined by receiver operating characteristic curves. Correlations between the indices and clinicopathological variables were determined by Pearson chi-square or Fisher exact tests. The Kaplan-Meier test was used to compare overall survival between groups (high and low values); the log-rank or Breslow test was used to assess differences in survival. Univariate and multivariate Cox regression models were used to analyze predictive values of the indices as independent indicators of overall survival. Bilateral p values of <0.05 were considered statistically significant. RESULTS: Significant association was found between the indices and sex, tissue grade, tumor location, and lymph nodes metastases (p < 0.05). On Kaplan-Meier analysis, patients with lower values of the indices had longer overall survival (p < 0.05). Univariate and multivariate Cox regression models identified age, lymph node metastases, and neutrophil-to-lymphocyte ratio as independent predictors of overall survival. CONCLUSION: The studied indices have potential prognostic significance in patients with squamous tongue cancer.

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