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1.
Am J Physiol Cell Physiol ; 326(1): C206-C213, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38047298

RESUMO

People with primary focal hyperhidrosis (PFH) usually have an overactive sympathetic nervous system, which can activate the sweat glands through the chemical messenger of acetylcholine. The role of aquaporin 5 (AQP5) and Na-K-2Cl cotransporter 1 (NKCC1) in PFH is still unknown. The relative mRNA and protein levels of AQP5 and NKCC1 in the sweat gland tissues of three subtypes of patients with PFH (primary palmar hyperhidrosis, PPH; primary axillary hyperhidrosis, PAH; and primary craniofacial hyperhidrosis, PCH) were detected with real-time PCR (qPCR) and Western blot. Primary sweat gland cells from healthy controls (NPFH-SG) were incubated with different concentrations of acetylcholine, and the relative mRNA and protein expression of AQP5 and NKCC1 were also detected. NPFH-SG cells were also transfected with si-AQP5 or shNKCC1, and acetylcholine stimulation-induced calcium transients were assayed with Fluo-3 AM calcium assay. Upregulated AQP5 and NKCC1 expression were observed in sweat gland tissues, and AQP5 demonstrated a positive Pearson correlation with NKCC1 in patients with PPH (r = 0.66, P < 0.001), patients with PAH (r = 0.71, P < 0.001), and patients with PCH (r = 0.62, P < 0.001). Upregulated AQP5 and NKCC1 expression were also detected in primary sweat gland cells derived from three subtypes of patients with PFH when compared with primary sweat gland cells derived from healthy control. Acetylcholine stimulation could induce the upregulated AQP5 and NKCC1 expression in NPFH-SG cells, and AQP5 or NKCC1 inhibitions attenuated the calcium transients induced by acetylcholine stimulation in NPFH-SG cells. The dependence of ACh-stimulated calcium transients on AQP5 and NKCC1 expression may be involved in the development of PFH.NEW & NOTEWORTHY The dependence of ACh-stimulated calcium transients on AQP5 and Na-K-2Cl cotransporter 1 (NKCC1) expression may be involved in the development of primary focal hyperhidrosis (PFH).


Assuntos
Aquaporina 5 , Hiperidrose , Humanos , Acetilcolina/farmacologia , Acetilcolina/metabolismo , Aquaporina 5/genética , Aquaporina 5/metabolismo , Cálcio/metabolismo , Técnicas de Cultura de Células , Hiperidrose/metabolismo , RNA Mensageiro/metabolismo , Glândulas Sudoríparas/química , Glândulas Sudoríparas/metabolismo
2.
BMC Cancer ; 24(1): 24, 2024 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-38166697

RESUMO

BACKGROUND: The evidence about the effects of trace elements on overall survival(OS) of patients with esophageal squamous cell carcinoma(ESCC) is limited. This study aims to evaluate mixed effects of plasma trace elements on OS of ESCC. METHODS: This prospective cohort analysis included 497 ESCC patients with a median follow-up of 52.3 months. The concentrations of 17 trace elements were measured. We fitted Cox's proportional hazards regression, factor analysis and Bayesian kernel machine regression (BKMR) models to estimate the association between trace elements and OS. RESULTS: Our analysis found that in the single-element model, Co, Ni, and Cd were associated with an increased risk of death, while Ga, Rb, and Ba were associated with a decreased risk. Cd had the strongest risk effect among all elements. As many elements were found to be mutually correlated, we conducted a factor analysis to identify common factors and investigate their associations with survival time. The factor analysis indicated that the factor with high factor loadings in Ga, Ba and B was linked to a decreased risk of death, while the factor with high factor loadings in Co, Ti, Cd and Pb was associated with a borderline significantly increased risk. Using BKMR analysis to disentangle the interaction between elements in significant factors, we discovered that Ga interacted with Ba and both elements had U-shaped effects with OS. Cd, on the other hand, had no interaction with other elements and independently increased the risk of death. CONCLUSIONS: Our analysis revealed that Ga, Ba and Cd were associated with ESCC outcome, with Ga and Ba demonstrating an interaction. These findings provide new insights into the impact of trace elements on the survival of patients with ESCC.


Assuntos
Neoplasias Esofágicas , Carcinoma de Células Escamosas do Esôfago , Oligoelementos , Humanos , Estudos Prospectivos , Teorema de Bayes , Cádmio , Estudos de Coortes
3.
Phys Chem Chem Phys ; 26(15): 11657-11666, 2024 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-38563149

RESUMO

Silica exhibits a rich phase diagram with numerous stable structures existing at different temperature and pressure conditions, including its glassy form. In large-scale atomistic simulations, due to the small energy difference, several phases may coexist. While, in terms of long-range order, there are clear differences between these phases, their short- or medium-range structural properties are similar for many phases, thus making it difficult to detect the structural differences. In this study, a methodology based on unsupervised learning is proposed to detect the differences in local structures between eight phases of silica, using atomic models prepared by molecular dynamics (MD) simulations. A combination of two-step locality preserving projections (TS-LPP) and locally averaged atomic fingerprints (LAAF) descriptor was employed to find a low-dimensional space in which the differences among all the phases can be detected. From the distance between each structure in the found low-dimensional space, the similarity between the structures can be discussed and subtle local changes in the structures can be detected. Using the obtained low-dimensional space, the ß-α transition in quartz at a low temperature was analyzed, as well as the structural evolution during the melt-quench process starting from α-quartz. The proper differentiation and ease of visualization make the present methodology promising for improving the analysis of the structure and properties of glasses, where subtle differences in structure appear due to differences in the temperature and pressure conditions at which they were synthesized.

4.
Sensors (Basel) ; 24(8)2024 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-38676240

RESUMO

Impulsive blind deconvolution (IBD) is a popular method to recover impulsive sources for bearing fault diagnosis. Its underpinnings are in the design of objective functions based on prior knowledge of impulsive sources and a transfer function to describe transmission path influences. However, popular objective functions cannot retain waveform impulsiveness and periodicity cyclostationarity simultaneously, and the single convolution operation of IBD methods is insufficient to describe transmission paths composed of multiple linear and nonlinear units. Inspired by the MaxPooling period modulation intensity (MPMI) and convolutional sparse learning (CSL), an adaptive multi-D-norm-driven sparse unfolding deconvolution network (AMD-SUDN) is proposed in this paper. The core strategy is that one target vector with simultaneous impulsiveness and cyclostationarity is constructed automatically through the MPMI; then, this vector is substituted into the multi D-norm to design objective functions. Moreover, an iterative soft threshold algorithm (ISTA) for the CSL model is derived, and its iterative steps are unfolded into one deconvolution network. The algorithm's performance and the hyperparameter configuration are investigated by a set of numerical simulations. Finally, the proposed AMD-SUDN is applied to detect the impulsive features of bearing faults. All comparative results verify that the proposed AMD-SUDN achieves a better deconvolution accuracy than state-of-the-art IBD methods.

5.
Physiol Genomics ; 55(5): 213-221, 2023 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-36939206

RESUMO

Current research has shown that inhibiting deoxythymidylate kinase (DTYMK) can significantly reduce development of lung cancer without liver kinase B1. However, its underlying regulatory mechanism is still unclear. We therefore aimed to investigate whether DTYMK inhibitors could suppress lung adenocarcinoma (LUAD) progression. In this study, human tissues, A549 cells, and xenograft tumors were used to explore the regulation and mechanism of DTYMK on LUAD cell proliferation and migration. Meanwhile, YMU1 (a DTYMK inhibitor) was applied to A549 cells and xenograft tumors to investigate its potential as a drug for LUAD. DTYMK was overexpressed in LUAD tissues and correlated with tumor stage. Knockdown of DTYMK suppressed cell viability, migration, and invasion. In addition, the activation of signal transducers and activators of transcription 3 (STAT3) was repressed upon DTYMK inhibition. YMU1 showed the same effect as DTYMK knockdown in vivo and in vitro. DTYMK plays an important role in progression of LUAD through the STAT3 signaling pathway. YMU1 may have the potential to inhibit the development of LUAD.NEW & NOTEWORTHY DTYMK plays an important role in progression of LUAD through the STAT3 signaling pathway. YMU1 may serve as a novel drug to suppress the development of LUAD.


Assuntos
Adenocarcinoma de Pulmão , Neoplasias Pulmonares , Humanos , Timidina Monofosfato/farmacologia , Adenocarcinoma de Pulmão/genética , Adenocarcinoma de Pulmão/metabolismo , Adenocarcinoma de Pulmão/patologia , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patologia , Transdução de Sinais , Pulmão/patologia , Proliferação de Células , Movimento Celular , Regulação Neoplásica da Expressão Gênica , Fator de Transcrição STAT3/genética , Fator de Transcrição STAT3/metabolismo , Fator de Transcrição STAT3/farmacologia
6.
Phys Chem Chem Phys ; 25(27): 17978-17986, 2023 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-37377109

RESUMO

The atomic descriptors used in machine learning to predict forces are often high dimensional. In general, by retrieving a significant amount of structural information from these descriptors, accurate force predictions can be achieved. On the other hand, to acquire higher robustness for transferability without overfitting, sufficient reduction of descriptors should be necessary. In this study, we propose a method to automatically determine hyperparameters in the atomic descriptors, aiming to obtain accurate machine learning forces while using a small number of descriptors. Our method focuses on identifying an appropriate threshold cut-off for the variance value of the descriptor components. To demonstrate the effectiveness of our method, we apply it to crystalline, liquid, and amorphous structures in SiO2, SiGe, and Si systems. By using both conventional two-body descriptors and our introduced split-type three-body descriptors, we demonstrate that our method can provide machine learning forces that enable efficient and robust molecular dynamics simulations.

7.
World J Surg Oncol ; 21(1): 42, 2023 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-36765340

RESUMO

BACKGROUND: Hepatitis B virus (HBV) reactivation impact negatively the prognosis of patients with HBV-related hepatocellular carcinoma (HCC). This study aimed to observe the effect of antiviral therapy (AVT) on viral reactivation and long-term outcomes after percutaneous radiofrequency ablation (PRFA) for HBV-related HCC. METHODS: Data on 538 patients between 2009 and 2013 were reviewed. Propensity score matching (PSM) analysis was used to adjust for differences in baseline features between patients who received AVT (AVT group) and did not receive it (non-AVT group). Logistic regression was used to identify the independent factors for viral reactivation. The tumor recurrence and overall survival (OS) rates were analyzed using the Kaplan-Meier method. Recurrence patterns were also investigated. RESULTS: HBV reactivation developed in 10.8% (58/538) of patients after PRFA. AVT was associated independently with decreased viral reactivation (odd ratio: 0.061, 95% confidence interval: 0.018-0.200). In 215 pairs of patients obtained after PSM, the AVT group had lower 1-, 3-, and 5-year recurrence rates (24%, 55%, and 67% vs 33%, 75%, and 85%, respectively) and higher 1-, 3-, and 5-year OS rates (100%, 67%, and 59% vs 100%, 52%, and 42%, respectively) than non-AVT group (P < 0.001 for both). Additionally, the relapses in distant hepatic segments and the late recurrence after 2 years of PRFA were significantly reduced in the AVT group (78/215 vs 111/215 vs., P = 0.001; 39/109 vs. 61/91, P = 0.012, respectively). CONCLUSIONS: AVT reduced late and distal intrahepatic recurrence and improved OS in patients undergoing PRFA for HBV-related HCC by inhibiting viral reactivation.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Ablação por Radiofrequência , Humanos , Carcinoma Hepatocelular/patologia , Vírus da Hepatite B/genética , Neoplasias Hepáticas/patologia , Hepatectomia/efeitos adversos , Recidiva Local de Neoplasia/cirurgia , Antivirais/uso terapêutico , DNA Viral , Estudos Retrospectivos
8.
Ann Surg Oncol ; 29(11): 6786-6799, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35789309

RESUMO

BACKGROUND: Lymph node (LN) metastasis is significantly associated with worse prognosis for patients with intrahepatic cholangiocarcinoma (ICC). Improvement in preoperative assessment on LN metastasis helps in treatment decision-making. We aimed to investigate the role of radiomics-based method in predicting LN metastasis for patients with ICC. METHODS: A total of 296 patients with ICC who underwent curative-intent hepatectomy and lymphadenectomy at two centers in China were analyzed. Radiomic features, including histogram- and wavelet-based features, shape and size features, and texture features were extracted from four-phase computerized tomography (CT) images. The clinical and conventional radiological variables which were independently associated with LN metastasis were also identified. A combined nomogram predicting LN metastasis was developed, and its performance was determined by discrimination, calibration, and stratification of long-term prognosis. The results were validated by the internal and external validation cohorts. RESULTS: Twenty-four radiomic features were selected into the nomogram. The established nomogram demonstrated good discrimination and calibration, with areas under the curve (AUCs) of 0.98 [95% confidence interval (CI) 0.96-0.99], 0.93 (0.88-0.98), and 0.89 (0.81-0.96) in the training and two validation cohorts, respectively. The 5-year overall survival (OS) and recurrence-free survival (RFS) rates of patients with high risk of LN metastasis as grouped by nomogram were poorer than those of patients with low risk in the training cohort (OS 28.8% versus 53.9%, p < 0.001; RFS 26.3% versus 44.2%, p = 0.001). Similar results were observed in the two validation cohorts. CONCLUSIONS: Radiomics-based method provided accurate prediction of LN metastasis and prognostic assessment for ICC patients, and might aid the preoperative surgical decision.


Assuntos
Neoplasias dos Ductos Biliares , Colangiocarcinoma , Neoplasias dos Ductos Biliares/diagnóstico por imagem , Neoplasias dos Ductos Biliares/cirurgia , Ductos Biliares Intra-Hepáticos/diagnóstico por imagem , Ductos Biliares Intra-Hepáticos/cirurgia , Colangiocarcinoma/diagnóstico por imagem , Colangiocarcinoma/cirurgia , Humanos , Metástase Linfática , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/métodos
9.
Mol Cell Neurosci ; 111: 103598, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33476802

RESUMO

The aim of the study was to elucidate the involvement of cholinergic receptor nicotinic alpha 1 subunit (CHRNA1) in the pathogenesis of primary focal hyperhidrosis (PFH). The hyperhidrosis mouse model was constructed using pilocarpine injection. The expression levels of CHRNA1 in sweat gland tissues of PFH patients and hyperhidrosis mice were compared using Western blots and quantitative real-time PCR (qRT-PCR) analyses. Sweat secretion in hyperhidrosis mice treated with small-interfering RNA (siRNA) targeting CHRNA1 (si-CHRNA1) or non-specific siRNA were compared. Sweat secretory granules in the sweat gland cells of hyperhidrosis mice were examined using transmission electron microscopy. The serum level of acetylcholine was measured using enzyme-linked immunosorbent assay, while markers associated with PFH, including Aquaporin 5 (AQP5) and Calcium Voltage-Gated Channel Subunit Alpha1 C (CACNA1C), were assessed using immunohistochemical assay and Western blots. Brain-derived neurotrophic factor (BDNF) and Neuregulin 1 (NRG-1) in sympathetic ganglia axons of hyperhidrosis mice were quantified using Western blots. CHRNA1 up-regulation is a characteristic of the sweat glands of PFH patients and Hyperhidrosis mice. Silencing CHRNA1 decreased sweat secretion and the number of sweat secretory granules of hyperhidrosis mice. Serum acetylcholine, as well as AQP5 and CACNA1C expression in the sweat glands, was reduced by siCHRNA1. BDNF1 and NRG-1 levels in the sympathetic ganglia axons were also attenuated by siCHRNA1 treatment. CHRNA1 up-regulation is a potential biomarker of PFH and downregulating CHRNA1 could alleviate the symptoms of PFH through inactivating the sympathetic system.


Assuntos
Hiperidrose/metabolismo , Receptores Nicotínicos/metabolismo , Glândulas Sudoríparas/metabolismo , Acetilcolina/sangue , Animais , Aquaporina 5/genética , Aquaporina 5/metabolismo , Canais de Cálcio Tipo L/genética , Canais de Cálcio Tipo L/metabolismo , Humanos , Hiperidrose/genética , Camundongos , Camundongos Endogâmicos BALB C , Receptores Nicotínicos/genética
10.
Mol Cell Biochem ; 476(2): 853-861, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33128214

RESUMO

Rab-interacting lysosomal protein (RILP) has been suggested to perform as a tumor suppressor in breast and prostate cancer cell lines. However, its expression profile and functional role in lung cancer have never been investigated. We applied the well-established cancer genomic database-The Cancer Genome Atlas to compare the RILP expression and methylation between lung cancer tissues and normal tissues. The potential correlation of RILP with clinical characteristics of lung cancer patients (e.g., stages, smoking, TP53, and methylation) was also be explored. Our results showed that the downregulation of RILP and upregulation of RILP methylation were identified in lung cancer tissues compared to normal healthy tissues. Downregulation of RILP was positively associated with lung cancer later stage (N3), smoking history, TP53 mutation, and poor prognosis, as well as inversely correlated with DNA (cytosine-5)-methyltransferase 1 (DNMT1) expression. Demethylation treatment enhanced RILP expression in lung cancer cells, suggesting hypermethylation is responsible for RILP silencing in lung cancer. We further found that RILP depletion promoted lung cancer cell proliferation, migration, and invasion. We concluded that RILP acts as a tumor suppressor in lung cancer cells. Our results provided the theoretical basis for developing RILP-targeting or demethylating agents for lung cancer treatment.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal/genética , Carcinoma de Células Escamosas/genética , DNA (Citosina-5-)-Metiltransferase 1/metabolismo , Metilação de DNA , Neoplasias Pulmonares/genética , Proteínas Supressoras de Tumor/metabolismo , Células A549 , Proteínas Adaptadoras de Transdução de Sinal/metabolismo , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/patologia , Linhagem Celular Tumoral , Movimento Celular/fisiologia , Proliferação de Células/fisiologia , Biologia Computacional/métodos , DNA (Citosina-5-)-Metiltransferase 1/genética , Humanos , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patologia , Estadiamento de Neoplasias , Taxa de Sobrevida , Proteínas Supressoras de Tumor/genética
11.
J Surg Oncol ; 123(1): 156-163, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33126290

RESUMO

BACKGROUND AND OBJECTIVES: This study aimed to analyze the association between health-related quality of life and treatment modality among esophageal squamous cell carcinoma (ESCC) survivors. METHODS: Patients completed the EORTC QLQ-C30 and EORTC QLQ-OES18 at baseline and follow-up. A time to deterioration model analysis was performed to compare longitudinal EORTC QLQ-C30/QLQ-OES18 data between surgery alone and surgery with adjuvant chemotherapy. RESULTS: For EORTC QLQ-C30 scale, compared with surgery alone, significant delays in time to deterioration in role functioning (16.05 months vs. 15.00 months; p = .045), cognitive functioning (20.80 months vs. 16.26 months; p = .017), social functioning (19.09 months vs. 12.35 months; p = .001), and dyspnea (18.53 months vs. 14.62 months; p = .011) were observed for surgery with adjuvant chemotherapy. For QLQ-OES18 scale, compared with surgery alone, significant delays in time to deterioration in dysphagia (13.75 months vs. 8.16 months; p = .005), choking when swallowing (20.67 months vs. 15.08 months; p = .001), and dry mouth (21.78 months vs. 17.28 months; p = .039) were observed for surgery with adjuvant chemotherapy. CONCLUSIONS: Patients who received postoperative chemotherapy had significant delay in time to deterioration in multiple ESCC-related symptoms, functions of EORTC QLQ-C30 and EORTC QLQ-OES18.


Assuntos
Sobreviventes de Câncer/estatística & dados numéricos , Quimiorradioterapia/mortalidade , Neoplasias Esofágicas/mortalidade , Carcinoma de Células Escamosas do Esôfago/mortalidade , Esofagectomia/mortalidade , Modelos Estatísticos , Qualidade de Vida , Idoso , Sobreviventes de Câncer/psicologia , Terapia Combinada , Neoplasias Esofágicas/patologia , Neoplasias Esofágicas/psicologia , Neoplasias Esofágicas/terapia , Carcinoma de Células Escamosas do Esôfago/patologia , Carcinoma de Células Escamosas do Esôfago/psicologia , Carcinoma de Células Escamosas do Esôfago/terapia , Feminino , Seguimentos , Humanos , Masculino , Prognóstico , Estudos Prospectivos , Taxa de Sobrevida
12.
Exp Cell Res ; 392(1): 112002, 2020 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-32277958

RESUMO

AarF domain containing kinase 5 (ADCK5) is a member of an atypical kinase family and overexpressed in many carcinomas including lung cancer, while the function of this protein has not been elucidated. Here we investigated the mechanism of ADCK5 involved in regulating invasion and migration of lung cancer cells, and showed that ADCK5 might regulate the expression of tumor oncogene human pituitary tumor transforming gene-1 (PTTG1) by phosphorylating transcription factor SOX9, therefore enhancing the migration and invasion capabilities of lung cancer cells. Mutagenesis of potential serine phosphorylation sites on SOX9 indicated that serine 181 might be required to maintain transcription activation of SOX9 as well as increase PTTG1 levels. The serine 181 site of SOX9 is in a motif that is targeted by ADCK5. The ADCK5-SOX9-PTTG1 pathway might be a potential therapeutic target for lung cancer.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/patologia , Movimento Celular/genética , Neoplasias Pulmonares/patologia , Proteínas Serina-Treonina Quinases/fisiologia , Fatores de Transcrição SOX9/genética , Securina/genética , Células A549 , Carcinoma Pulmonar de Células não Pequenas/genética , Adesão Celular/genética , Proliferação de Células/genética , Células Cultivadas , Regulação Neoplásica da Expressão Gênica , Humanos , Neoplasias Pulmonares/genética , Invasividade Neoplásica/genética , Metástase Neoplásica , Proteínas Serina-Treonina Quinases/genética , Fatores de Transcrição SOX9/metabolismo , Securina/metabolismo , Transdução de Sinais/genética
13.
Biochem Biophys Res Commun ; 528(2): 299-304, 2020 07 23.
Artigo em Inglês | MEDLINE | ID: mdl-32473755

RESUMO

The pathogenesis of primary focal hyperhidrosis (PFH) is still not clear. PFH is thought to be a genetic disease. Whether activin A receptor type 1 (ACVR1) is involved in the pathogenesis of PFH is unknown. In this study, the expression of ACVR1 in sweat glands of patients with PAH was detected by western blot and immunofluorescence. The primary sweat gland cells obtained from primary axillary hyperhidrosis (PAH) patients were transfected with acvr1 vector. Cell proliferation, apoptosis and cell cycling of gland cells were measured after transfection with acvr1 vector. The mRNA and protein expression of aquaporin 5 (AQP5) and Na:K:2Cl Cotransporter 1 (NKCC1/SLC12A2) were detected. Our data showed that ACVR1 expression in axillary sweat gland tissue of PAH patients was significantly higher than that of normal control group. The function of ACVR1 was further investigated in the gland cells obtained from PAH patients. Compared with NC group, ACVR1 overexpression significantly promoted the proliferation of sweat gland cells and inhibited the apoptosis of sweat gland cells. Meanwhile, ACVR1 overexpression significantly reduced the percentage of cells in G0/G1 and G2/M phases, and increased the percentage of cells in S phase. In addition, ACVR1 overexpression significantly promoted the expression of AQP5 and NKCC1 at both mRNA and protein levels. Together, ACVR1 expression is related to PFH and ACVR1 overexpression can promote the proliferation of sweat gland cells and inhibit apoptosis by promoting the expression of AQP5 and NKCC1.


Assuntos
Receptores de Ativinas Tipo I/metabolismo , Hiperidrose/metabolismo , Hiperidrose/patologia , Apoptose , Aquaporina 5/genética , Aquaporina 5/metabolismo , Proliferação de Células , Regulação da Expressão Gênica , Humanos , Hiperidrose/genética , Membro 2 da Família 12 de Carreador de Soluto/genética , Membro 2 da Família 12 de Carreador de Soluto/metabolismo , Glândulas Sudoríparas/metabolismo , Glândulas Sudoríparas/patologia
14.
Future Oncol ; 16(25): 1903-1909, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32449621

RESUMO

Aim: To investigate the expression and prognostic value of KRT 15 in esophageal carcinoma. Materials & methods: The expression levels of KRT 15 were measured in 128 cases of esophageal carcinoma and matched adjacent normal tissues by immunohistochemistry and Western blot assays. Results & conclusion: Western blot analysis shown the expression levels of KRT 15 in esophageal carcinoma were significantly higher compared with those in matched adjacent normal tissues (p < 0.001). immunohistochemistry result shown the high-expression rate of KRT 15 in esophageal carcinoma were 56.3%, which was significantly higher than those in normal tissues (35.9%; p = 0.002). KRT 15 high-expression correlated with T stage, lymph node metastasis, tumor node metastasis stage and prognosis (p < 0.05). These data indicate KRT 15 as a prognostic biomarker is highly expressed in esophageal carcinoma.


Assuntos
Biomarcadores Tumorais , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/mortalidade , Expressão Gênica , Queratina-15/genética , Adulto , Idoso , Neoplasias Esofágicas/diagnóstico , Feminino , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Queratina-15/metabolismo , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Estadiamento de Neoplasias , Prognóstico , Curva ROC
15.
J Chem Phys ; 152(16): 164112, 2020 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-32357801

RESUMO

We survey the underlying theory behind the large-scale and linear scaling density functional theory code, conquest, which shows excellent parallel scaling and can be applied to thousands of atoms with diagonalization and millions of atoms with linear scaling. We give details of the representation of the density matrix and the approach to finding the electronic ground state and discuss the implementation of molecular dynamics with linear scaling. We give an overview of the performance of the code, focusing in particular on the parallel scaling, and provide examples of recent developments and applications.

16.
BMC Cancer ; 19(1): 1064, 2019 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-31703631

RESUMO

BACKGROUND: The present standard of surgical treatment for esophageal cancer is country dependent. The aim of the present study was to investigate the basic aspects of surgical procedures performed for esophageal cancer, and provide information about the present state of esophageal cancer surgery in China. METHODS: Data were obtained from a database administered by the Chinese Ministry for Health. A total of 542 participating hospitals were divided into seven geographic areas, and 10% of hospitals in each area were randomly chosen for inclusion. All patients with esophageal cancer, who underwent esophagectomy in these participating hospitals from January 1 to December 31, 2015, were included in the present study. The clinical characteristics, stage of tumor at diagnosis, operation summary and outcomes, and histological findings of patients were extracted and analyzed. RESULTS: The present study included 11,791 patients, and the average number of patients per hospital was 218. Squamous cell carcinoma was the most common pathological type, while the mid-esophagus was the most common location. Open procedures were performed in 63.8% of patients, while minimally invasive esophagectomy was performed in 36.2% of patients. Multiple approaches to transthoracic esophagectomy were utilized. Two-field lymphadenectomy was the most frequently performed (64.8%), followed by three-field lymphadenectomy (21.8%). Gastric tubes, thoracic duct ligation and postoperative enteral nutrition were implemented to minimize complications. CONCLUSION: The standard operative procedure and detailed technique for esophageal carcinoma surgery is presently being debated in China. This survey provides some basic information about the present state of esophageal cancer surgery countrywide.


Assuntos
Carcinoma de Células Escamosas/cirurgia , Neoplasias Esofágicas/cirurgia , Esofagectomia/métodos , Excisão de Linfonodo/métodos , Idoso , China , Bases de Dados Factuais , Nutrição Enteral , Esofagectomia/efeitos adversos , Feminino , Humanos , Excisão de Linfonodo/efeitos adversos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos
17.
Surg Endosc ; 33(6): 2015-2023, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30617423

RESUMO

BACKGROUND: Video-assisted thoracoscopic lobectomy with lymphadenectomy is considered one of the most effective treatments for early non-small cell lung cancer. We developed a novel approach for lobectomy in patients with right upper lung cancer through simplified synchronous disconnection of pulmonary arteries and veins. This study aimed to evaluate the feasibility, efficacy, safety, and cost-effectiveness of this minimally invasive technique in managing right upper lobectomy. PATIENTS AND METHODS: From March 2016 to September 2017, 62 patients with right upper lung cancer underwent lobectomy via simplified synchronous disconnection of pulmonary arteriovenous by video-assisted thoracoscopic surgery. All patients were followed up for 6-12 months after the procedure through clinic visits or telephone/e-mail interviews. RESULTS: Of the 62 patients (mean age, 57.2 ± 8.7 years), 28 were men (45.2%) and 34 (54.8%) were women. All procedures were successfully performed by thoracoscopy, with a mean operating time of 66.2 ± 9.0 min. The mean blood loss was 40.3 ± 19.5 mL. Only 1 (1.61%) patient required blood transfusion. The mean number of endoscopic linear stapling devices used was 2.6 ± 0.7. The mean number of lymph nodes harvested was 16.0 ± 1.6. Postoperative pneumonia was encountered in 4 (6.45%) patients. There was no postoperative mortality. The mean length of hospital stay was 5.3 ± 1.3 days. Six-month follow-up revealed an excellent clinical result and degree of satisfaction. CONCLUSIONS: Simplified synchronous disconnection of pulmonary arteries and veins is a feasible, economical, safe, and effective therapeutic procedure for right upper lung carcinoma. This novel procedure shows promise as a viable surgical approach for right upper lobectomy.


Assuntos
Carcinoma Pulmonar de Células não Pequenas/cirurgia , Neoplasias Pulmonares/cirurgia , Pneumonectomia/métodos , Artéria Pulmonar/patologia , Cirurgia Torácica Vídeoassistida , Idoso , Carcinoma Pulmonar de Células não Pequenas/patologia , Feminino , Humanos , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Resultado do Tratamento
19.
Surg Endosc ; 30(8): 3447-53, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-26514138

RESUMO

BACKGROUND: Traditional endoscopic thoracic sympathicotomy is usually performed through an axillary incision with 5-mm thoracoscope under general anesthesia with endotrachea intubation. Nonintubated transareolar single-port thoracic sympathicotomy with a needle scope has rarely been attempted. The objective of this study is to evaluate the feasibility and safety of this minimally invasive technique in managing primary palmar hyperhidrosis (PPH). METHODS: From May 2012 to May 2014, a total of 85 male patients with severe PPH underwent transareolar single-port thoracic sympathicotomy by use of a 2-mm needle scope under total intravenous anesthesia without endotrachea intubation. RESULTS: All procedures were successfully performed with a mean operating time of 13.5 min. The palms of all patients became dry and warm as soon as the sympathetic chain was cut off. There were no sore throat, and all the patients regained consciousness rapidly after surgery. Eighty-two patients (96.5 %) were discharged from the hospital on the first postoperative day. The postoperative complications were minor, and no patients developed Horner's syndrome. At 6 months postoperatively, there is no obvious surgical scar on the chest wall, and none of the patients complained about postoperative pain. Compensatory sweating appeared in 31 patients. No recurrent symptoms were observed in our study. One-year follow-up revealed an excellent cosmetic result and degree of satisfaction. CONCLUSIONS: Nonintubated transareolar single-port needlescopic thoracic sympathicotomy is a safe, effective and minimally invasive therapeutic procedure, which can be performed in routine clinical practice for male PPH patients.


Assuntos
Hiperidrose/cirurgia , Simpatectomia/métodos , Toracoscópios , Toracoscopia , Adolescente , Adulto , Estudos de Viabilidade , Humanos , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Satisfação do Paciente , Simpatectomia/instrumentação , Adulto Jovem
20.
Clin Lab ; 62(9): 1699-1708, 2016 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-28164588

RESUMO

BACKGROUND: Current clinical scoring systems are insufficient in the early identification of severe acute pancreatitis (SAP) patients at risk of developing potentially lethal complications. This present study was designed to evaluate the relationship of presepsin with disease severity, local complications, organ failure, and mortality of SAP. METHODS: Eighty-five SAP patients and 85 gender- and age-matched healthy volunteers were enrolled. Presepsin concentrations were measured on admission from SAP patients and at study entry from healthy individuals. RESULTS: Presepsin levels were obviously higher in patients than in healthy individuals (1078.35 ± 385.16 pg/mL vs. 95.23 ± 21.64 pg/mL). Presepsin was identified as an independent predictor of local complications, organ failure, and in-hospital mortality and was positively associated with traditional predictors including the Bedside Index for Severity in Acute Pancreatitis (BISAP), Acute Physiology and Chronic Health Care Evaluation II (APACHE-II), Ransom score, and computed tomography severity index (CTSI).With the receiver operating characteristic (ROC) analysis, presepsin predicted local complications, organ failure, and in-hospital mortality of SAP patients with high areas under receiver operating characteristic curve and its predictive value was similar to the traditional predictors that are currently used in clinical practice. CONCLUSIONS: Increased presepsin level was found to be an accurate predictor of disease severity and identified as a novel prognostic marker of local complications, organ failure, and mortality of SAP.


Assuntos
Receptores de Lipopolissacarídeos/sangue , Pancreatite/sangue , Pancreatite/mortalidade , Fragmentos de Peptídeos/sangue , APACHE , Doença Aguda , Área Sob a Curva , Biomarcadores/sangue , Estudos de Casos e Controles , Feminino , Mortalidade Hospitalar , Humanos , Masculino , Pessoa de Meia-Idade , Insuficiência de Múltiplos Órgãos/sangue , Insuficiência de Múltiplos Órgãos/etiologia , Pancreatite/complicações , Valor Preditivo dos Testes , Prognóstico , Curva ROC , Estudos Retrospectivos , Índice de Gravidade de Doença
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