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1.
Research (Wash D C) ; 7: 0432, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39165637

RESUMO

Due to the absence of definitive diagnostic criteria, there remains a lack of consensus regarding the risk assessment of central lymph node metastasis (CLNM) and the necessity for prophylactic lymph node surgery in ultrasound-diagnosed thyroid cancer. The localization of thyroid nodules is a recognized predictor of CLNM; however, quantifying this relationship is challenging due to variable measurements. In this study, we developed a differential isomorphism-based alignment method combined with a graph transformer to accurately extract localization and morphological information of thyroid nodules, thereby predicting CLNM. We collected 88,796 ultrasound images from 48,969 patients who underwent central lymph node (CLN) surgery and utilized these images to train our predictive model, ACE-Net. Furthermore, we employed an interpretable methodology to explore the factors influencing CLNM and generated a risk heatmap to visually represent the distribution of CLNM risk across different thyroid regions. ACE-Net demonstrated superior performance in 6 external multicenter tests (AUC = 0.826), surpassing the predictive accuracy of human experts (accuracy = 0.561). The risk heatmap enabled the identification of high-risk areas for CLNM, likely correlating with lymphatic metastatic pathways. Additionally, it was observed that the likelihood of metastasis exceeded 80% when the nodal margin's minimum distance from the thyroid capsule was less than 1.25 mm. ACE-Net's capacity to effectively predict CLNM and provide interpretable disease-related insights can importantly reduce unnecessary lymph node dissections by 37.9%, without missing positive cases, thus offering a valuable tool for clinical decision-making.

2.
Clin Proteomics ; 21(1): 50, 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-39004717

RESUMO

BACKGROUND: Estrogen receptor-positive (ER+) breast cancer accounts for two-thirds of all breast cancers, and its early and late recurrences still threaten patients' long-term survival and quality of life. Finding candidate tumor antigens and potential therapeutic targets is critical to addressing these unmet needs. METHOD: The isobaric tags for relative and absolute quantitation (iTRAQ) proteomic analysis was employed to identify the differentially expressed proteins (DEPs) between ER + breast cancer and corresponding adjacent normal tissue. Candidate DEPs were screened by bioinformatic analyses, and their expression was confirmed by immunohistochemical (IHC) staining and western blot. A series of in vitro experiments, including wound healing assay, colony formation, and cell cycle assay, were performed to reveal the functions of selected DEPs. Additionally, their clinical significances were further analyzed. RESULT: A total of 369 DEPs (fold change ≥ 2.0 or ≤ 0.66, P < 0.05) were discovered. Compared with normal tissue, 358 proteins were up-regulated and 11 proteins were down-regulated in ER + breast cancer. GO and KEGG enrichment analysis showed that DEPs were closely associated with RNA regulation and metabolic pathways. STRING analysis found ESF1 and MIPEP were the hub genes in breast cancer, whose increased expressions were verified by the IHC staining and western blot. Knocking down ESF1 and MIPEP inhibited colony formation and increased cell apoptosis. Besides, knocking down ESF1 inhibited wound healing but not MIPEP. In addition, ESF1 and MIPEP expression were negatively associated with patient prognosis. CONCLUSION: The upregulation of ESF1 and MIPEP promoted ER + breast cancer proliferation, which might provide novel targets for the development of new therapies.

3.
Hepatol Res ; 53(11): 1084-1095, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37353943

RESUMO

AIM: To assess the correlation and agreement between hepatic venous pressure gradient (HVPG) and portal pressure gradient (PPG) in patients with autoimmune liver diseases (ALD) and portal hypertension, and to investigate the extent to which hepatic vein collateralization affects the accuracy of this assessment. METHODS: Ninety-eight patients with ALD between 2017 and 2021 who underwent transjugular intrahepatic portosystemic shunt with conventional and innovative 15 mL pressurized contrast were selected to measure wedged hepatic venous pressure (WHVP) and portal venous pressure and to calculate the HVPG and PPG. Pearson's correlation was used for correlation analysis between the two groups. Bland-Altman plots were plotted to estimate the agreement between paired pressures. RESULTS: The r values of PPG and HVPG in the early, middle, late, and portal venous visualization were 0.404, 0.789, 0.807, and 0.830, respectively, and the R2 values were 0.163, 0.622, 0.651, and 0.690, respectively. The p value for the r and R2 values in the early group was 0.015, and the p values in the remaining groups were less than 0.001. Bland-Altman plots showed that patients in the portal venous visualization group had the narrowest 95% limits of agreement. The mean value of the difference was close to the zero-scale line. CONCLUSIONS: In patients with ALD, the correlation between the HVPG and PPG was good, and the later the collateral development, the better the correlation. Hepatic vein collateral was an essential factor in underestimating WHVP and HVPG, and the earlier the collateral appeared, the more obvious the underestimation.

4.
Hepatol Commun ; 7(5)2023 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-37141513

RESUMO

BACKGROUND: Endoscopy plays an important role in the management of acute variceal bleeding (AVB) in patients with cirrhosis. This study aimed at determining the optimal endoscopy timing for cirrhotic AVB. METHODS: Patients with cirrhosis with AVB across 34 university hospitals in 30 cities from February 2013 to May 2020 who underwent endoscopy within 24 hours were included in this study. Patients were divided into an urgent endoscopy group (endoscopy <6 h after admission) and an early endoscopy group (endoscopy 6-24 h after admission). Multivariable analysis was performed to identify risk factors for treatment failure. Primary outcome was the incidence of 5-day treatment failure. Secondary outcomes included in-hospital mortality, need for intensive care unit, and length of hospital stay. A propensity score matching analysis was performed. In addition, we performed an analysis, in which we compared the 5-day treatment failure incidence and the in-hospital mortality among patients with endoscopy performed at <12 hours and 12-24 hours. RESULTS: A total of 3319 patients were enrolled: 2383 in the urgent endoscopy group and 936 in the early endoscopy group. After propensity score matching, on multivariable analysis, Child-Pugh class was identified as an independent risk factor for 5-day treatment failure (HR, 1.61; 95% CI: 1.09-2.37). The incidence of 5-day treatment failure was 3.0% in the urgent endoscopy group and 2.9% in the early group ( p = 0.90). The in-hospital mortality was 1.9% in the urgent endoscopy group and 1.2% in the early endoscopy group ( p = 0.26). The incidence of need for intensive care unit was 18.2% in the urgent endoscopy group and 21.4% in the early endoscopy group ( p = 0.11). The mean length of hospital stay was 17.9 days in the urgent endoscopy group and 12.9 days in the early endoscopy group ( p < 0.05). The incidence of 5-day treatment failure in the <12-hour group was 2.3% and 2.2% in the 12-24 hours group ( p = 0.85). The in-hospital mortality was 2.2% in the <12-hour group and 0.5% in the 12-24 hours group ( p < 0.05). CONCLUSIONS: The data suggest that performance of endoscopy within 6-12 or within 24 hours of presentation among patients with cirrhosis with AVB led to similar treatment failure outcomes.


Assuntos
Varizes Esofágicas e Gástricas , Hemorragia Gastrointestinal , Humanos , Estudos de Coortes , Hemorragia Gastrointestinal/diagnóstico , Hemorragia Gastrointestinal/etiologia , Varizes Esofágicas e Gástricas/etiologia , Varizes Esofágicas e Gástricas/complicações , Estudos Retrospectivos , Cirrose Hepática/complicações , Endoscopia Gastrointestinal
5.
Brief Bioinform ; 24(2)2023 03 19.
Artigo em Inglês | MEDLINE | ID: mdl-36736372

RESUMO

Liver cancer is the third leading cause of cancer-related death worldwide, and hepatocellular carcinoma (HCC) accounts for a relatively large proportion of all primary liver malignancies. Among the several known risk factors, hepatitis B virus (HBV) infection is one of the important causes of HCC. In this study, we demonstrated that the HBV-infected HCC patients could be robustly classified into three clinically relevant subgroups, i.e. Cluster1, Cluster2 and Cluster3, based on consistent differentially expressed mRNAs and proteins, which showed better generalization. The proposed three subgroups showed different molecular characteristics, immune microenvironment and prognostic survival characteristics. The Cluster1 subgroup had near-normal levels of metabolism-related proteins, low proliferation activity and good immune infiltration, which were associated with its good liver function, smaller tumor size, good prognosis, low alpha-fetoprotein (AFP) levels and lower clinical stage. In contrast, the Cluster3 subgroup had the lowest levels of metabolism-related proteins, which corresponded with its severe liver dysfunction. Also, high proliferation activity and poor immune microenvironment in Cluster3 subgroup were associated with its poor prognosis, larger tumor size, high AFP levels, high incidence of tumor thrombus and higher clinical stage. The characteristics of the Cluster2 subgroup were between the Cluster1 and Cluster3 groups. In addition, MCM2-7, RFC2-5, MSH2, MSH6, SMC2, SMC4, NCPAG and TOP2A proteins were significantly upregulated in the Cluster3 subgroup. Meanwhile, abnormally high phosphorylation levels of these proteins were associated with high levels of DNA repair, telomere maintenance and proliferative features. Therefore, these proteins could be identified as potential diagnostic and prognostic markers. In general, our research provided a novel analytical protocol and insights for the robust classification, treatment and prevention of HBV-infected HCC.


Assuntos
Carcinoma Hepatocelular , Hepatite B , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/patologia , Vírus da Hepatite B/metabolismo , Neoplasias Hepáticas/patologia , alfa-Fetoproteínas/metabolismo , Hepatite B/complicações , Microambiente Tumoral
6.
World J Gastrointest Surg ; 14(6): 567-579, 2022 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-35979417

RESUMO

BACKGROUND: Patients with hepatocellular carcinoma complicated with main portal vein tumor thrombosis (mPVTT) and cirrhotic portal hypertension (CPH) have an extremely poor prognosis, and there is a lack of a clinically effective treatment paradigm. AIM: To evaluate the efficacy and safety of transjugular intrahepatic portosystemic shunt (TIPS) combined with radioactive seed strand for the treatment of mPVTT patients with CPH. METHODS: The clinical data of 83 consecutive patients who underwent TIPS combined with 125I seed strand placement for mPVTT and CPH from January 2015 to December 2018 were retrospectively reviewed. Procedure-related data (success rate, relief of portal vein pressure and CPH symptoms, and adverse events), PVTT response, and patient survival were assessed through a 2-year follow-up. RESULTS: The success rate was 100.0% without perioperative death or procedure-related severe adverse events. The mean portal vein pressure was significantly decreased after the procedure (22.25 ± 7.33 mmHg vs 35.12 ± 7.94 mmHg, t = 20.61, P < 0.001). The symptoms of CPH were all effectively relieved within 1 mo. The objective response rate of PVTT was 67.5%. During a mean follow-up of 14.5 ± 9.4 mo (range 1-37 mo), the cumulative survival rates at 6, 12 and 24 mo were 83.1%, 49.7%, and 21.8%, respectively. The median survival time was 12.0 ± 1.3 mo (95% confidence interval: 9.5-14.5). In multivariate Cox regression analysis, body mass index, Child-Pugh grade, cTNM stage, and PVTT response were independent prognostic factors (P < 0.05). CONCLUSION: TIPS combined with radioactive seed strand might be effective and safe in treating mPVTT patients with CPH.

7.
Front Bioeng Biotechnol ; 10: 849798, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35646860

RESUMO

Upper gastrointestinal cancer (UGIC) is an aggressive carcinoma with increasing incidence and poor outcomes worldwide. Here, we collected 39,057 cells, and they were annotated into nine cell types. By clustering cancer stem cells (CSCs), we discovered the ubiquitous existence of sub-cluster CSCs in all UGICs, which is named upper gastrointestinal cancer stem cells (UGCSCs). The identification of UGCSC function is coincident with the carcinogen of UGICs. We compared the UGCSC expression profile with 215,291 single cells from six other cancers and discovered that UGCSCs are specific tumor stem cells in UGIC. Exploration of the expression network indicated that inflammatory genes (CXCL8, CXCL3, PIGR, and RNASE1) and Wnt pathway genes (GAST, REG1A, TFF3, and ZG16B) are upregulated in tumor stem cells of UGICs. These results suggest a new mechanism for carcinogenesis in UGIC: mucosa damage and repair caused by poor eating habits lead to chronic inflammation, and the persistent chronic inflammation triggers the Wnt pathway; ultimately, this process induces UGICs. These findings establish the core signal pathway that connects poor eating habits and UGIC. Our system provides deeper insights into UGIC carcinogens and a platform to promote gastrointestinal cancer diagnosis and therapy.

8.
Front Mol Biosci ; 9: 834976, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35573744

RESUMO

Aim: To develop a glycolysis-related gene signature that correlated with the characteristics of the tumor immune microenvironment and had good predictive power for overall survival (OS) in hepatocellular carcinoma (HCC). Methods: Gene expression profiles, RNA sequencing data, clinical characteristics and survival information for 407 patients with HCC and 58 healthy controls were downloaded from the TCGA database. GSEA 4.1.0 software was used to evaluate the glycolysis-related pathways enriched in HCC compared to normal liver tissue. Univariate Cox, Least Absolute Shrinkage, Selection Operator, and two-step multivariate Cox analyses were used to construct a glycolysis-related gene signature for prognostic prediction. The glycolysis-related gene signature was combined with clinical characteristics to generate a nomogram. Tumor-infiltrating immune cell profiles and PD-L1 protein expression in HCC tissues were investigated. Results: The gene expression profiles of HCC tissues were enriched in glycolysis-related pathways. A glycolysis-related gene signature was used to categorize patients as high-risk or low-risk, where high-risk patients had significantly worse OS. Receiver operating characteristic curves confirmed the predictive capability of the glycolysis-related gene signature for OS (AUC >0.80). There was a significant difference in M0 macrophage (p = 0.017), dendritic cell (p = 0.043), B cell (p = 0.0018), CD4 T cell (p = 0.003), Treg (p = 0.01) and mast cell (p = 0.02) content and PD-L1 protein expression (p = 0.019) between HCC tissues in patients in the high-risk and low-risk groups. Conclusion: We established a glycolysis-related gene signature for OS in HCC that was predictive in training and test TCGA cohorts and correlated with the characteristics of the HCC tumor immune microenvironment. The glycolysis-related gene signature may guide clinical decision-making concerning patient selection for immunotherapy in HCC.

9.
Comput Biol Med ; 150: 106163, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-37070625

RESUMO

PURPOSE: Predicting the efficacy of radiotherapy in individual patients has drawn widespread attention, but the limited sample size remains a bottleneck for utilizing high-dimensional multi-omics data to guide personalized radiotherapy. We hypothesize the recently developed meta-learning framework could address this limitation. METHODS AND MATERIALS: By combining gene expression, DNA methylation, and clinical data of 806 patients who had received radiotherapy from The Cancer Genome Atlas (TCGA), we applied the Model-Agnostic Meta-Learning (MAML) framework to tasks consisting of pan-cancer data, to obtain the best initial parameters of a neural network for a specific cancer with smaller number of samples. The performance of meta-learning framework was compared with four traditional machine learning methods based on two training schemes, and tested on Cancer Cell Line Encyclopedia (CCLE) and Chinese Glioma Genome Atlas (CGGA) datasets. Moreover, biological significance of the models was investigated by survival analysis and feature interpretation. RESULTS: The mean AUC (Area under the ROC Curve) [95% confidence interval] of our models across nine cancer types was 0.702 [0.691-0.713], which improved by 0.166 on average over other the four machine learning methods on two training schemes. Our models performed significantly better (p < 0.05) in seven cancer types and performed comparable to the other predictors in the rest of two cancer types. The more pan-cancer samples were used to transfer meta-knowledge, the greater the performance improved (p < 0.05). The predicted response scores that our models generated were negatively correlated with cell radiosensitivity index in four cancer types (p < 0.05), while not statistically significant in the other three cancer types. Moreover, the predicted response scores were shown to be prognostic factors in seven cancer types and eight potential radiosensitivity-related genes were identified. CONCLUSIONS: For the first time, we established the meta-learning approach to improving individual radiation response prediction by transferring common knowledge from pan-cancer data with MAML framework. The results demonstrated the superiority, generalizability, and biological significance of our approach.


Assuntos
Neoplasias , Humanos , Neoplasias/genética , Neoplasias/radioterapia , Análise de Sobrevida , Redes Neurais de Computação , Aprendizado de Máquina
10.
Support Care Cancer ; 29(9): 5425-5433, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33709185

RESUMO

OBJECTIVES: To examine the dyadic relationships of dyadic coping, marital satisfaction, and posttraumatic growth and to confirm the mediating effect of marital satisfaction between dyadic coping and posttraumatic growth among breast cancer patients and their spouses. METHODS: A total of 206 pairs of female breast cancer patients and their spouses from one tertiary hospital in Guangzhou, China, from August 2018 to July 2019 were invited to complete the demographics and disease-related information questionnaire, the Posttraumatic Growth Inventory, the Marital Adjustment Scale, and the Dyadic Coping Inventory. RESULTS: Patients' and spouses' positive/negative dyadic coping exerted actor effects and partner effects on marital satisfaction, while their marital satisfaction and positive dyadic coping only exerted actor effects on posttraumatic growth. In addition, the mediating effects of marital satisfaction on the impact of dyadic coping on posttraumatic growth were confirmed in both patients and spouses. CONCLUSION: Our findings provide a new perspective on the relationships between dyadic coping, marital satisfaction, and posttraumatic growth at the individual and dyadic levels. Promoting positive dyadic coping and decreasing negative dyadic coping among breast cancer patients and spouses can improve their marital satisfaction and posttraumatic growth.


Assuntos
Neoplasias da Mama , Crescimento Psicológico Pós-Traumático , Adaptação Psicológica , Feminino , Humanos , Relações Interpessoais , Casamento , Satisfação Pessoal , Cônjuges
11.
PeerJ ; 9: e10576, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33505797

RESUMO

Knowledge of similarities among diseases can contribute to uncovering common genetic mechanisms. Based on ranked gene lists, a couple of similarity measures were proposed in the literature. Notice that they may suffer from the determination of cutoff or heavy computational load, we propose a novel similarity score SimSIP among diseases based on gene ranks. Simulation studies under various scenarios demonstrate that SimSIP has better performance than existing rank-based similarity measures. Application of SimSIP in gene expression data of 18 cancer types from The Cancer Genome Atlas shows that SimSIP is superior in clarifying the genetic relationships among diseases and demonstrates the tendency to cluster the histologically or anatomically related cancers together, which is analogous to the pan-cancer studies. Moreover, SimSIP with simpler form and faster computation is more robust for higher levels of noise than existing methods and provides a basis for future studies on genetic relationships among diseases. In addition, a measure MAG is developed to gauge the magnitude of association of anindividual gene with diseases. By using MAG the genes and biological processes significantly associated with colorectal cancer are detected.

12.
World J Gastroenterol ; 26(29): 4316-4326, 2020 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-32848336

RESUMO

BACKGROUND: Spontaneous bacterial peritonitis (SBP) is a detrimental infection of the ascitic fluid in liver cirrhosis patients, with high mortality and morbidity. Early diagnosis and timely antibiotic administration have successfully decreased the mortality rate to 20%-25%. However, many patients cannot be diagnosed in the early stages due to the absence of classical SBP symptoms. Early diagnosis of asymptomatic SBP remains a great challenge in the clinic. AIM: To establish a multivariate predictive model for early diagnosis of asymptomatic SBP using positive microbial cultures from liver cirrhosis patients with ascites. METHODS: A total of 98 asymptomatic SBP patients and 98 ascites liver cirrhosis patients with negative microbial cultures were included in the case and control groups, respectively. Multiple linear stepwise regression analysis was performed to identify potential indicators for asymptomatic SBP diagnosis. The diagnostic performance of the model was estimated using the receiver operating characteristic curve. RESULTS: Patients in the case group were more likely to have advanced disease stages, cirrhosis related-complications, worsened hematology and ascites, and higher mortality. Based on multivariate analysis, the predictive model was as follows: y (P) = 0.018 + 0.312 × MELD (model of end-stage liver disease) + 0.263 × PMN (ascites polymorphonuclear) + 0.184 × N (blood neutrophil percentage) + 0.233 × HCC (hepatocellular carcinoma) + 0.189 × renal dysfunction. The area under the curve value of the established model was 0.872, revealing its high diagnostic potential. The diagnostic sensitivity was 73.5% (72/98), the specificity was 86.7% (85/98), and the diagnostic efficacy was 80.1%. CONCLUSION: Our predictive model is based on the MELD score, polymorphonuclear cells, blood N, hepatocellular carcinoma, and renal dysfunction. This model may improve the early diagnosis of asymptomatic SBP.


Assuntos
Infecções Bacterianas , Carcinoma Hepatocelular , Neoplasias Hepáticas , Peritonite , Ascite/diagnóstico , Ascite/etiologia , Ascite/patologia , Líquido Ascítico , Infecções Bacterianas/complicações , Infecções Bacterianas/diagnóstico , Carcinoma Hepatocelular/patologia , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Cirrose Hepática/patologia , Neoplasias Hepáticas/patologia , Peritonite/diagnóstico
13.
J Phys Chem Lett ; 11(4): 1282-1290, 2020 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-31977221

RESUMO

Recent chiral sum-frequency generation vibrational spectroscopy (SFG-VS) measurements revealed that two N-H stretching modes in the 3100-3500 cm-1 range in folded peptide LK7ß exhibit chiral characteristics. Here, we report the first phase-resolved subwavenumber high-resolution broadband SFG-VS (HR-BB-SFG-VS) measurement of the folded peptide LK7ß. The results show that this chiral N-H band consists of four, instead of two, distinctive peaks, and they are with two groups of opposite spectral phases. Moreover, the phases of these N-H peaks completely flip from the l-LK7ß to the d-LK7ß peptide, suggesting that the chirality of the N-H in the folded peptide LK7ß is completely governed by the chirality of the Cα-H of the amino acids. This discovery provides a clue on why proteins in nature are composed of the α-amino acids rather than ß- or γ-amino acids and may help us understand how life works.


Assuntos
Hidrogênio/química , Nitrogênio/química , Peptídeos/química , Sequência de Aminoácidos , Carbono/química , Dobramento de Proteína , Espectrofotometria Infravermelho , Estereoisomerismo
14.
Infect Microbes Dis ; 2(4): 167-172, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38630105

RESUMO

Escherichia coli is a prevalent causative pathogen of spontaneous bacterial peritonitis (SBP). In this retrospective study, we investigated the microbiological characteristics and antibiotic susceptibility of E. coli clinical isolates obtained from liver cirrhosis patients suffering from nosocomial SBP. Our results showed that extended-spectrum ß-lactamase (ESBL)-producing E. coli accounted for 47% of the cases, while 62% of the isolates were multi-drug resistant (MDR) pathogens. ESBL-producing and MDR isolates showed high incidences of resistance to third-generation cephalosporins, but they displayed susceptibility to carbapenems, ß-lactamase inhibitors, and aminoglycosides. Importantly, liver cirrhosis patients with MDR E. coli SBP showed a significantly higher death rate than patients with non-MDR infections (P = 0.021). The 30-day mortality of nosocomial SBP was independently correlated with female gender [odds ratio (OR) = 5.200, 95% confidence interval (CI) = 1.194-22.642], liver failure (OR = 9.609, 95% CI = 1.914-48.225), hepatocellular carcinoma (OR = 8.176, 95% CI = 2.065-32.364), hepatic encephalopathy (OR = 8.176, 95% CI = 2.065-32.364), model of end-stage liver disease score (OR = 1.191, 95% CI = 1.053-1.346), white blood cell count (OR = 0.847, 95% CI = 0.737-0.973), and ascites polymorphonuclear (OR = 95.903, 95% CI = 3.410-2697.356). In conclusion, third-generation cephalosporins may be inappropriate for empiric treatment of nosocomial SBP caused by E. coli, due to the widespread presence of ESBLs and high incidence of MDR pathogens.

15.
Eur J Oncol Nurs ; 42: 134-140, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31526966

RESUMO

PURPOSE: To translate and validate the Chinese version of the Demoralization Scale among breast cancer patients. METHOD: A cross-sectional, descriptive correlational design was employed. From September 2016 to May 2017, 203 breast cancer survivors completed the survey. Content, construct, concurrent and divergent validity and internal consistency of the Chinese version of the Demoralization Scale were evaluated. RESULTS: The proposed factor structures of the Demoralization Scale in previous studies cannot be confirmed using confirmatory factor analysis in the present study. Moreover, four factors were extracted by exploratory factor analysis, which accounted for 58.66% of the variance. Each subscale yielded satisfactory internal consistency with coefficient alphas ranging from 0.720 to 0.894. Relationships/differences between demoralization, quality of life, despair and depression provide initial support for the concurrent/divergent validity. Given these results, the Chinese version of the Demoralization Scale appears to be both valid and reliable. CONCLUSIONS: Our results preliminary supported that the Chinese version of the Demoralization Scale is a reliable and valid instrument for assessing demoralization among mainland Chinese breast cancer patients, and the factor structure of this measurement needs to be further addressed in future studies.


Assuntos
Neoplasias da Mama/psicologia , Desmoralização , Adulto , Povo Asiático , China , Estudos Transversais , Depressão/diagnóstico , Depressão/etiologia , Emprego , Análise Fatorial , Feminino , Humanos , Pessoa de Meia-Idade , Psicometria , Qualidade de Vida , Reprodutibilidade dos Testes , Inquéritos e Questionários , Traduções
16.
BMC Gastroenterol ; 19(1): 32, 2019 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-30782139

RESUMO

BACKGROUND: The recurrence of esophageal varices remains high in patients with hepatic portal hypertension after the endoscopic esophageal variceal eradication therapies, including endoscopic variceal band ligation (EVL), injection sclerotherapy (EIS) or EVL plus EIS. The aim of this study was to evaluate the endoscopic ultrasound probe examinations (EUP) findings in the prediction of recurrence following esophageal variceal eradication in a prospective cohort. METHODS: A total of 206 cirrhotic portal hypertension patients with esophageal variceal eradication, who underwent endoscopic variceal therapy (EVL or EIS or EVL plus EIS) were initially enrolled. All patients were scheduled for a follow-up every 6 months for up to 3 years. EUP was performed to evaluate peri-esophageal collateral veins (peri-ECVs), perforating veins (PFV) and para-esophageal collateral veins (para-ECVs). In addition, computed tomography (CT) were conducted to detect portal vein diameter, portal vein embolus, and major portosystemic collateral shunts. The relationship between esophageal variceal recurrence and EUP findings were analyzed. RESULTS: We found that as high as 93.5% of patients developed esophageal variceal recurrence in the 3-year follow-up. The time of esophageal variceal recurrence after variceal eradication was 13.4 months (13.4 ± 9.2 months). Furthermore, the median time of recurrence in patients who were undertaken EVL,EIS and EVL plus EIS was 10, 13 and 12 months, respectively. We identified that the risk factors, including EVL (OR 0.23, 95% CI 0.08-0.71, p < 0.01), Child-Pugh score (OR 3.32,95% CI 1.31-35.35, p < 0.05), large peri-ECVs (OR 4.56, 95% CI 2.17-9.58, p < 0.0001), and existence of PFV (OR 2.14, 95% CI 1.44-3.16, p < 0.001), were significantly associated with the recurrence of esophageal varices. The peri-ECVs and PFV showed better ability to predict esophageal variceal recurrence. When cut-off value of peri-ECVs diameter was 3.5 mm, the specificity of prediction 1-year variceal recurrence was 86% and the sensitivity was 45%. CONCLUSIONS: The EUP appears to be very effective, convenient and economical examinations to predict esophageal varices recurrence after variceal eradication by endoscopic therapies. The high Child-pugh score, large peri-ECVs, and PFV are independent risk factors related to esophageal varices recurrence.


Assuntos
Endoscopia Gastrointestinal/métodos , Endossonografia , Varizes Esofágicas e Gástricas/diagnóstico por imagem , Varizes Esofágicas e Gástricas/terapia , Hemorragia Gastrointestinal/diagnóstico por imagem , Hemorragia Gastrointestinal/terapia , Hipertensão Portal/complicações , Cirrose Hepática/complicações , Escleroterapia , Adulto , Idoso , Angiografia por Tomografia Computadorizada , Varizes Esofágicas e Gástricas/etiologia , Feminino , Hemorragia Gastrointestinal/etiologia , Humanos , Ligadura , Masculino , Pessoa de Meia-Idade , Probabilidade , Estudos Prospectivos , Recidiva , Fatores de Risco
17.
J Adv Nurs ; 75(1): 75-84, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30132970

RESUMO

AIMS: To explore functional exercise adherence, coping styles, and illness perception and to examine the relationships between functional exercise adherence and coping styles with illness perception among Chinese breast cancer survivors. BACKGROUND: Although the relationships between functional exercise adherence with coping styles and illness perception have been examined in people with various chronic illnesses, breast cancer has not yet been included. DESIGN: A cross-sectional descriptive correlational design was employed. METHODS: From September 2016 - January 2017, 124 breast cancer survivors completed a survey that assessed their illness perception, coping style, functional exercise adherence and, demographic and illness-related characteristics. Multiple linear regression analyzes were employed to examine the relationship of demographic and illness-related variables and illness perception to coping style and functional exercise adherence. RESULTS: Our respondents tended more to adopt avoidance and resignation coping styles, and showed better functional exercise adherence than respondents in a previous Chinese study. Multiple linear regression analyzes showed that confrontation was associated with treatment control and emotional representation and that avoidance was related to personal control and age at first labour, while resignation was related to timeline acute/chronic, timeline cyclical, and consequence. As for functional exercise adherence, adherence to functional exercise was related to personal control and marital status, while adherence to actively seeking advice was associated with marital status, treatment control, and employment. CONCLUSIONS: These results imply that interventions that improve illness perceptions may lead to more positive coping styles and better functional exercise adherence and should thus be explored.


Assuntos
Adaptação Psicológica , Povo Asiático/psicologia , Neoplasias da Mama/psicologia , Neoplasias da Mama/terapia , Sobreviventes de Câncer/psicologia , Terapia por Exercício/psicologia , Cooperação do Paciente/psicologia , Adulto , Atitude Frente a Saúde , Estudos Transversais , Feminino , Humanos , Modelos Lineares , Pessoa de Meia-Idade , Análise Multivariada , Inquéritos e Questionários
18.
Hematol Oncol ; 36(1): 320-323, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28401573

RESUMO

Castleman disease is a rare lymphoproliferative disorder with 2 distinctly defined clinical forms. While multicentric Castleman disease (UCD) poses a potential therapeutic challenge, unicentric variant has historically been considered curable with surgical resection. Hence, little is known to guide management of patients with UCD, refractory to surgical resection and combination chemotherapy. We present a case of a patient, negative for HIV and HHV-8, who had an unsuccessful surgical intervention and no response to radiotherapy and chemotherapy. He had severe paraneoplastic pemphigus and was treated with tocilizumab, an anti-interleukin-6 receptor monoclonal antibody that has demonstrated good response rates in multicentric Castleman disease but demonstrated no clinical response despite 2 months of treatment. Our report is the first to describe a lack of response to tocilizumab in the rare setting of refractory UCD and discuss potential for distinct disease biology.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Hiperplasia do Linfonodo Gigante/tratamento farmacológico , Anticorpos Monoclonais Humanizados/administração & dosagem , Anticorpos Monoclonais Humanizados/farmacologia , Hiperplasia do Linfonodo Gigante/patologia , Humanos , Masculino , Pessoa de Meia-Idade
19.
J BUON ; 23(6): 1739-1744, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30610802

RESUMO

PURPOSE: Cervical cancer is one of the prevalently diagnosed cancers in women worldwide. In this study the antiproliferative and anticancer effects of Salviolone were evaluated against HeLa cervical cancer cell line along with determining the anticancer mode of action. METHODS: MTT assay was employed to examine the proliferation rate of HeLa cells. Transmission electron microscopy (TEM) was used for the detection of the autophagic cell death. The cell invasion and migration were investigated by transwell assay and the expression of the proteins was estimated by western blotting. RESULTS: The results revealed that Salviolone exerts anticancer effects on the HeLa cells with an IC50 of 20 µM. The effect of Salviolone on the viability of normal FR-2 cells was very low. TEM analysis showed that Salviolone triggers autophagic cell death in HeLa cells. Salviolone could also cause arrest of the HeLa cervical cancer cells in the G2/M phase of the cell cycle and suppress their ability to migrate and invade. Western blotting analysis revealed that Salviolone could inhibit the of Nf-kB/m-TOR/PI3K/AKT signalling pathway in HeLa cells. CONCLUSION: Taken all together, it is concluded that Salviolone could prove to be an important lead molecule for the treatment of cervical cancer.


Assuntos
Movimento Celular/efeitos dos fármacos , Pontos de Checagem da Fase G2 do Ciclo Celular/efeitos dos fármacos , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Pontos de Checagem da Fase M do Ciclo Celular/efeitos dos fármacos , Quinonas/farmacologia , Transdução de Sinais/efeitos dos fármacos , Neoplasias do Colo do Útero/patologia , Antineoplásicos Fitogênicos/farmacologia , Apoptose/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Feminino , Humanos , NF-kappa B/genética , NF-kappa B/metabolismo , Fosfatidilinositol 3-Quinases/genética , Fosfatidilinositol 3-Quinases/metabolismo , Fosforilação , Proteínas Proto-Oncogênicas c-akt/genética , Proteínas Proto-Oncogênicas c-akt/metabolismo , Proteínas Quinases S6 Ribossômicas 70-kDa/genética , Proteínas Quinases S6 Ribossômicas 70-kDa/metabolismo , Serina-Treonina Quinases TOR/genética , Serina-Treonina Quinases TOR/metabolismo , Células Tumorais Cultivadas , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/genética , Neoplasias do Colo do Útero/metabolismo
20.
Tumour Biol ; 39(7): 1010428317706914, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28714367

RESUMO

PARP-1 (poly(ADP-ribose) polymerase-1) plays an important role in tumorigenesis. Since its effects on different populations are varied, this study investigated the impact of PARP-1 on primary hepatocellular carcinoma in a Southern Chinese Zhuang population. We assessed the global PARP-1 messenger RNA expression in patients with hepatocellular carcinoma using The Cancer Genome Atlas dataset. Increased PARP-1 expression, related to alpha-fetoprotein level, was observed. The area under the receiver operating characteristic curve value was 0.833. Kaplan-Meier survival curves indicated that higher PARP-1 expression was not correlated with poorer overall survival and recurrence-free survival. In a Zhuang population, PARP-1 messenger RNA and protein levels were increased in the hepatocellular carcinoma tissue and its adjacent liver tissues as assessed by quantitative polymerase chain reaction, immunohistochemistry, and western blotting. Higher PARP-1 level was associated with a higher tumor stage (p < 0.05), without correlation with age, gender, smoking, drinking, tumor size, serum alpha-fetoprotein level, hepatitis B virus infection, metastasis, and invasion (p > 0.05). Further analysis suggested that H2AX, a PARP-1 protein interaction partner, was coordinated with PARP-1 in hepatocellular carcinoma tumorigenesis. Overall, some new characteristics of PARP-1 expression were noted in the Zhuang population. PARP-1 is a novel promising diagnostic marker for hepatocellular carcinoma in the Southern Chinese Zhuang population.


Assuntos
Biomarcadores Tumorais/genética , Carcinoma Hepatocelular/genética , Histonas/genética , Neoplasias Hepáticas/genética , Poli(ADP-Ribose) Polimerase-1/genética , Adulto , Idoso , Carcinogênese/genética , Carcinoma Hepatocelular/patologia , Intervalo Livre de Doença , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , alfa-Fetoproteínas/genética
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