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1.
Ann Surg Oncol ; 31(2): 872-882, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37962740

RESUMEN

BACKGROUND: This study aimed to evaluate the dynamic impact of the micropapillary (MIP) component on local recurrence (LR), distant metastasis (DM), and multiple recurrence (MR) of pathological stage IA3 lung adenocarcinoma. METHODS: Between July 2012 and July 2020, a total of 351 patients at two medical institutions were enrolled in this study. Cumulative incidence of curves, dynamic risk curves, and time-dependent multivariate analysis was performed to evaluate the effect of the MIP component on patients. RESULTS: The 5-year cumulative incidence of total recurrence with or without an MIP component was 34.2% and 12.3%, respectively (p = 0.001). In three recurrence patterns, our findings revealed that the 5-year cumulative incidence of LR (p = 0.048) and DM (p = 0.005) was higher in the 'MIP-present' group than in the 'MIP-absent' group. In the dynamic recurrence curve, the risk of the three recurrence patterns was different and varied over time between the two groups, especially in DM. Moreover, the dynamic cumulative event curve showed that after 1, 2, and 3 years of survival, the cumulative incidence of DM in the group with MIP continued to be higher than that in the group without MIP (all p < 0.05). Time-dependent Cox regression analysis indicated that the MIP component continued to be an independent risk factor for the cumulative incidence of DM in patients with 3-year survival. CONCLUSIONS: Of the three recurrence patterns, the MIP component mainly aggravated the risk of DM in patients with pathological stage IA3 lung adenocarcinoma, which persisted for 3 years.


Asunto(s)
Adenocarcinoma del Pulmón , Adenocarcinoma , Neoplasias Pulmonares , Humanos , Estudios Retrospectivos , Neoplasias Pulmonares/patología , Adenocarcinoma/cirugía , Adenocarcinoma/patología , Estadificación de Neoplasias , Recurrencia Local de Neoplasia/cirugía , Recurrencia Local de Neoplasia/patología , Adenocarcinoma del Pulmón/patología , Pronóstico
2.
Int J Mol Sci ; 25(2)2024 Jan 10.
Artículo en Inglés | MEDLINE | ID: mdl-38255926

RESUMEN

The global rise of multidrug-resistant Enterobacter cloacae strains, especially those that are resistant to carbapenems and produce metallo-ß-lactamases, poses a critical challenge in clinical settings owing to limited treatment options. While bacteriophages show promise in treating these infections, their use is hindered by scarce resources and insufficient genomic data. In this study, we isolated ECLFM1, a novel E. cloacae phage, from sewage water using a carbapenem-resistant clinical strain as the host. ECLFM1 exhibited rapid adsorption and a 15-min latent period, with a burst size of approximately 75 PFU/infected cell. Its genome, spanning 172,036 bp, was characterized and identified as a member of Karamvirus. In therapeutic applications, owing to a high multiplicity of infection, ECLFM1 showed increased survival in zebrafish infected with E. cloacae. This study highlights ECLFM1's potential as a candidate for controlling clinical E. cloacae infections, which would help address challenges in treating multidrug-resistant strains and contribute to the development of alternative treatments.


Asunto(s)
Bacteriófagos , Enterobacteriaceae Resistentes a los Carbapenémicos , Animales , Enterobacter cloacae , Bacteriófagos/genética , Pez Cebra , Carbapenémicos/farmacología , Carbapenémicos/uso terapéutico
3.
Ann Surg Oncol ; 30(9): 5843-5853, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37219654

RESUMEN

INTRODUCTION: The study investigated the synergistic effect of the micropapillary (MIP) component and consolidation-to-tumor ratio (CTR) on the recurrence and survival of patients with pathologic stage IA3 lung adenocarcinoma. METHODS: We enrolled 419 patients confirmed pathological stage IA3 adenocarcinoma from four institutions. Kaplan-Meier analysis was performed to examine the value of the MIP component and CTR on relapse-free survival (RFS) and overall survival (OS). The cumulative recurrence between different stages was analyzed by using cumulative event curves. RESULTS: RFS (P < 0.0001) and OS (P = 0.008) in the presence of the MIP group were significantly lower than those in the absence of the MIP group, and CTR > 5 only reduced RFS (P = 0.0004), but not OS (P = 0.063), in the patients. In addition, the prognosis of patients with both the MIP component and CTR > 5 was worse than that of those without the MIP component or CTR ≤ 5. Therefore, we established new subtypes of the stage IA3: IA3a, IA3b, and IA3c. RFS and OS for IA3c staging were significantly lower than those for IA3a and IA3b. For IA3c, the cumulative incidence of local recurrence (P < 0.001) and that of distant metastasis (P = 0.004) were significantly higher than those for IA3a and IA3b. CONCLUSIONS: The MIP component combined with CTR > 0.5 can effectively predict the prognosis of patients with pathological stage IA3 lung adenocarcinoma and may offer more detailed recurrence and survival information according to the established subtype stage of IA3.


Asunto(s)
Adenocarcinoma del Pulmón , Neoplasias Pulmonares , Humanos , Neoplasias Pulmonares/patología , Estadificación de Neoplasias , Recurrencia Local de Neoplasia/cirugía , Recurrencia Local de Neoplasia/patología , Adenocarcinoma del Pulmón/patología , Pronóstico , Estudios Retrospectivos
4.
Surg Endosc ; 37(10): 7698-7708, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37563344

RESUMEN

BACKGROUND: The effects of minimally invasive total mesoesophageal excision (MITME) on the long-term prognosis of locally advanced esophageal squamous cell carcinoma (ESCC) remain unknown. The objective of this study was to compare the static and dynamic failure patterns of MITME and minimally invasive esophagectomy (MIE) for locally advanced ESCC. METHODS: We use propensity score matching (PSM) method to analyze the postoperative failure patterns of the two groups. Cumulative event curves were analyzed for cumulative incidence of failure between different groups, and independent prognostic factors were assessed using time-dependent multivariate analyses. The risk of dynamic failure calculated at 12-month intervals was compared between the two groups using the lifetime table. RESULTS: A total of 366 ESCC patients were studied by 1:1 PSM for T stage and TNM stage (MITME group, n = 183; MIE group, n = 183). In the matched cohort, there was significant differences between the MITME and MIE groups in the failure pattern of regional lymph node recurrence (0.5 vs 3.8%, P = 0.032) and non-tumor death (10.9 vs 31.7%, P < 0.001). The cumulative event curve found that the 5-year cumulative failure rate was lower in the MITME group than in the MIE group (3.3 vs 17.1%, P = 0.026) after 5 years of survival. In addition, multivariate Cox regression analysis showed that MIE was an independent poor prognostic factor for a high cumulative failure rate in locally advanced ESCC patients at 5 years after surgery (HR:4.110; 95% CI 1.047-16.135; P = 0.043). The dynamic risk curve showed that the MITME group had a lower risk of failure within 5 years after surgery than the MIE group. CONCLUSION: Considering that MITME can significantly improve the postoperative failure pattern and the benefit lasts for at least 5 years, it is feasible to use MITME as a treatment for locally advanced ESCC.


Asunto(s)
Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Humanos , Carcinoma de Células Escamosas de Esófago/cirugía , Neoplasias Esofágicas/patología , Estudios de Seguimiento , Estudios de Cohortes , Esofagectomía/métodos , Resultado del Tratamiento , Complicaciones Posoperatorias/etiología , Estudios Retrospectivos , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos
5.
World J Surg ; 47(4): 1003-1017, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36633646

RESUMEN

INTRODUCTION: The potential association between severe postoperative complications (SPC) and the oncological outcomes of esophageal squamous cell carcinoma (ESCC) patients according to the different Naples Prognostic Score (NPS) of the inflammatory nutritional status after minimally invasive esophagectomy (MIE) is unclear. METHODS: Kaplan-Meier survival analysis was used to evaluate overall survival (OS) and disease-free survival (DFS) between with or without SPC (Clavien-Dindo grade ≥ III) in low NPS status (NPS = 0 or 1) and high NPS status (NPS = 2 or 3 or 4) patients. Cox multivariable analysis was carried out to analyze the various independent factors of OS and DFS, and a nomogram based on SPC was established. RESULTS: A total of 20.7% (125/604) ESCC patients developed SPC after MIE. Patients with SPC exhibited poor 5-year OS and DFS compared to those without SPC (all P < 0.001). Further analysis revealed that SPC significantly reduced OS and DFS in patients with high NPS status (all P < 0.001) but had little effect on the prognosis of patients with low NPS status (all P > 0.05). Multivariable Cox analysis revealed that SPC could be an independent influence indicator for OS and DFS in patients with high NPS status. Therefore, a novel nomogram combining SPC and tumor-node-metastasis (TNM) staging has been developed, which was found to be relatively more accurate in predicting OS and DFS than TNM staging alone. CONCLUSION: Severe complications can adversely affect the long-term oncological outcome of ESCC patients with high systemic inflammatory response and malnutrition after MIE.


Asunto(s)
Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Humanos , Carcinoma de Células Escamosas de Esófago/cirugía , Neoplasias Esofágicas/patología , Estado Nutricional , Esofagectomía/efectos adversos , Pronóstico , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Estudios Retrospectivos
6.
Surg Endosc ; 36(11): 8326-8339, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35556169

RESUMEN

BACKGROUND: Non-textbook outcome (non-TO) represents a new prognostic evaluation index for surgical oncology. The present study aimed to develop new nomograms based on non-TO to predict the mortality and recurrence rate in patients with esophageal squamous cell cancer (ESCC) after minimally invasive esophagectomy (MIE). METHODS: The study involved a retrospective analysis of 613 ESCC patients, from the prospectively maintained database from January 2011 to December 2018. All the included ESCC patients underwent MIE, and they were randomly (1:1) assigned to the training cohort (307 patients) and the validation cohort (306 patients). Kaplan-Meier survival analysis was used to analyze the differences recorded between overall survival (OS) and disease-free survival (DFS). In the case of the training cohort, the nomograms based on non-TO were developed using Cox regression, and the performance of these nomograms was calibrated and evaluated in the validation cohort. RESULTS: Significant differences were recorded for 5-year OS and DFS between non-TO and TO groups (p < 0.05). Multivariate cox analysis revealed that non-TO, intraoperative bleeding, T stage, and N stage acted as independent risk factors that affected OS and DFS (p < 0.05). The results for multivariate regression were used to build non-TO-based nomograms to predict OS and DFS of patients with ESCC, the t-AUC curve analysis showed that the nomograms predicting OS and DFS were more accurate as compared to TNM staging, during the follow-up period in the training cohort and validation cohort. Further, the nomogram score was used to divide ESCC patients into low-, middle-, and high-risk groups and significant differences were recorded for OS and DFS between these three groups (p < 0.001). CONCLUSIONS: Non-TO was identified as an independent prognostic factor for ESCC patients. The nomograms based on non-TO could availably predict OS and DFS in ESCC patients after MIE.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Humanos , Esofagectomía/métodos , Nomogramas , Carcinoma de Células Escamosas/patología , Estudios Retrospectivos , Neoplasias Esofágicas/patología , Pronóstico , Estadificación de Neoplasias , Células Epiteliales/patología
7.
J Aging Phys Act ; 30(3): 552-566, 2022 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-34510028

RESUMEN

Muscle strength after detraining is still higher than the level before training, which is an important issue for middle-aged and older adults. The purpose of the present study was to examine the effects of detraining duration (DD), resistance training duration (RTD), and intensity on the maintenance of resistance training (RT) benefits after detraining in middle-aged and older adults. A systematic search yielded 15 randomized control trails (n = 383) eligible for inclusion. The results showed that RTD ≥ 24 weeks and DD ≥ RTD, the RT benefits were still significantly maintained even with medium and low intensity (standardized mean difference = 1.16, 95% confidence interval, CI [0.38, 1.94], p = .004). When RTD < 24 weeks and DD ≤ RTD, only the high-intensity groups maintained the RT benefits (DD, 4-6 weeks: standardized mean difference = 0.71, 95% CI [0.34, 1.08], p = .0002; DD 8-16 weeks: standardized mean difference = 1.35, 95% CI [0.66, 2.04], p = .0001). However, when DD > RTD, the RT benefits were not maintained even with high intensity. In summary, when RTD was less than 24 weeks, RTD > DD was an important factor in maintaining muscle strength.


Asunto(s)
Fuerza Muscular , Entrenamiento de Fuerza , Anciano , Humanos , Extremidad Inferior , Persona de Mediana Edad , Fuerza Muscular/fisiología , Músculo Esquelético/fisiología , Entrenamiento de Fuerza/métodos
8.
Hu Li Za Zhi ; 69(4): 99-110, 2022 Aug.
Artículo en Zh | MEDLINE | ID: mdl-35893341

RESUMEN

BACKGROUND: 85%-95% of patients with cancer experience chemotherapy-induced peripheral neuropathy (CIPN), which may lead to neuropathic pain, emotional distress, functional difficulties, and interpersonal problems. Although exercise interventions have been proposed for improving and preventing CIPN, evidence regarding the efficacy of these interventions has been inconsistent and of inadequate quality. In addition, few domestic systematic reviews have examined the effects of exercise on CIPN. PURPOSE: To examine the effects of exercise interventions in cancer patients with CIPN using a systematic review (SR) method. METHODS: An SR method was used in this paper by applying the concept of PICO using keywords P "cancer", I "rehabilitation", "exercise", C "usual care, standard of care", and O "chemotherapy-Induced peripheral neuropathy" in a search of the Ovid Medline, PubMed, Cochrane Library, EMBASE and Airiti Library databases for articles published from 2002 to 2021. Based on the inclusion and exclusion criteria, a total of 13 research articles were identified for review in this study. RESULTS: The 13 randomized controlled trials reviewed in this SR included 909 cancer patients during or after chemotherapy who were receiving exercise interventions. The results indicate that single or combined exercise protocols have consistent benefits in terms of improving CIPN symptoms. However, because of the relatively small sample sizes (n = 19-355) and the multiple types (n = 9), frequencies (1-7 day/week), and durations (5-60 minutes/time) of exercise protocols used in these studies, future research is necessary to explore differences in the types and subgroup effects of exercise. CONCLUSIONS: The results from this systematic review indicate that the combined exercise model has consistent benefits in terms of helping prevent and alleviate the symptoms of CIPN. In clinical practice, healthcare providers may consider encouraging cancer patients to initiate mild physical activity when their physical conditions are stable and without evident side effects from chemotherapy to minimize the impacts of CIPN on daily functioning and quality of life.


Asunto(s)
Antineoplásicos , Neoplasias , Enfermedades del Sistema Nervioso Periférico , Antineoplásicos/efectos adversos , Terapia por Ejercicio/efectos adversos , Terapia por Ejercicio/métodos , Humanos , Neoplasias/complicaciones , Neoplasias/tratamiento farmacológico , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Enfermedades del Sistema Nervioso Periférico/prevención & control , Calidad de Vida
9.
Support Care Cancer ; 29(3): 1509-1518, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32710174

RESUMEN

BACKGROUND: No gold standard of nutritional assessment is established among patients with head and neck cancer (HNC) receiving concurrent chemoradiotherapy (CCRT). This study aimed to evaluate the clinical significance of pre-treatment nutritional status using the Mini Nutritional Assessment-short form (MNA-SF) among HNC patients receiving CCRT. METHODS: A total of 461 consecutive patients with newly diagnosed HNC treated with definitive CCRT at three medical institutes were prospectively enrolled. Nutritional status was assessed using MNA-SF within 7 days before CCRT initiation. Patients were classified as having normal nutrition, at risk of malnutrition, and malnourished groups according to MNA-SF for comparison. RESULTS: The 1-year overall survival rates were 89.8%, 76.8%, and 67.7% in the normal nutrition, at risk of malnutrition, and malnourished groups, respectively. Patients with normal nutrition had significantly lower rates of uncompleted radiotherapy and chemotherapy (4.5% and 4.1%, respectively) compared with patients at risk for malnutrition (14.1% and 11.5%, respectively) and those malnourished (11.1% and 11.1%, respectively). Patients with normal nutrition had significantly lower treatment-related complication rates regarding emergency room visits, hospital admission, and need for tubal feeding than those with at risk of malnutrition and malnourished. Patients with normal nutrition had significantly fewer severe hematologic toxicities (p = 0.044) and severe non-hematologic toxicities (p = 0.012) of CCRT than those malnourished. CONCLUSION: Pre-CCRT nutritional status identifies HNC patients vulnerable to treatment interruption and treatment complications. We suggest that nutritional assessment with MNA-SF should be incorporated in pre-CCRT evaluation for all HNC patients.


Asunto(s)
Quimioradioterapia/métodos , Neoplasias de Cabeza y Cuello/dietoterapia , Evaluación Nutricional , Estado Nutricional/fisiología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Análisis de Supervivencia , Adulto Joven
10.
Asia Pac J Clin Nutr ; 29(1): 94-100, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32229447

RESUMEN

BACKGROUND AND OBJECTIVES: To develop and validate the prediction equations for lean body mass (LBM) and appendicular skeletal muscle mass (ASM) using body circumference measurements of community-dwelling adults older than 50 years old. METHODS AND STUDY DESIGN: Four hundred and ninety-eight community-dwelling adults older than 50 years old were recruited for this study. Participants were randomly assigned to a development group (DG, n=332) and validation group (VG, n=166). Lean body mass and ASM were assessed using dualenergy x-ray absorptiometry along with the anthropometric parameters. The Pearson correlation coefficient was used to examine the associations between ASM, LBM and anthropometric parameters in the DG. Prediction equations for LBM and ASM were established from DG data using multiple regression analyses. Paired t-test and Bland-Altman test were used to validate the equations in the VG. RESULTS: Forearm circumference had the highest correlation with LBM and ASM. The developed prediction models were: LBM (kg) = 27.479 + 0.726 * weight (kg) - 3.383 * gender (male = 1, female = 2) - 0.672 * BMI + 0.514 * forearm circumference (cm) - 0.245 * hip circumference (cm)(r2=0.90); ASM (kg) = -4.287 + 0.202 * weight (kg) - 0.166 * hip circumference (cm) - 1.484 * gender (male = 1, female = 2) + 0.173 * calf circumference (cm) + 0.096 * height + 0.243 * forearm circumference (cm)(r2=0.85). CONCLUSIONS: Prediction equations using only a measuring tape provide accurate, inexpensive, practical methods to assess LBM and ASM in Asians older than 50 years old.


Asunto(s)
Antropometría/métodos , Composición Corporal , Índice de Masa Corporal , Músculo Esquelético , Anciano , Femenino , Humanos , Vida Independiente , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Distribución Aleatoria , Valores de Referencia , Reproducibilidad de los Resultados , Taiwán
12.
J Sports Sci Med ; 18(1): 52-57, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30787651

RESUMEN

The purpose of this study was to investigate the immediate and sustained effects of static stretching (SS), dynamic stretching (DS) with no-load (DSNL), DS with a light load (DSLL, 0.25 kg), and DS with a heavy load (DSHL, 0.5 kg) on the hip joint range of motion (ROM). Sixteen participants (63.2 ± 7.13 years) were randomly assigned to perform SS, DSNL, DSLL, and DSHL exercises. The ROM for passive flexion and extension of the right hip joint was measured at pretest, as well as immediately after and at 60 min after completing the exercise. Additionally, the ROM of hip flexion and extension during the stretching exercise was evaluated by kinematic analysis of video-captured images. Passive ROM measurements reveals that the hip flexion ROM was higher after DSNL than after DSLL and DSHL at both time points (DSNL vs. DSLL, DSHL: 0 min: 7.0% vs. -1.8%, -3.9%; 60 min: 7.8% vs. -2.1%, -1.4%, p < 0.05), as well as higher than after SS at 60 min after exercise (DSNL vs. SS: 7.8% vs. 1.0%, p < 0.05). Compared to SS, all types of DS demonstrated a more sustained effect of ROM improvement at 60 min (DSNL, DSLL, DSHL vs. SS: 8.0%, 5.6%, 7.0% vs. 1.6%, p < 0.05). These results suggest that all DS modes can effectively improve hip extension ROM in the elderly. DSNL may be the most effective exercise for improving hip flexion ROM, providing sustained effect for over 60 min.


Asunto(s)
Articulación de la Cadera/fisiología , Ejercicios de Estiramiento Muscular/métodos , Anciano , Fenómenos Biomecánicos , Humanos , Persona de Mediana Edad , Rango del Movimiento Articular , Estudios de Tiempo y Movimiento , Soporte de Peso
14.
CMAJ ; 188(8): E148-E157, 2016 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-27001739

RESUMEN

BACKGROUND: Angiotensin-converting-enzyme (ACE) inhibitors and angiotensin II receptor blockers (ARBs) are effective treatments for diabetic retinopathy, but randomized trials and meta-analyses comparing their effects on macrovascular complications have yielded conflicting results. We compared the effectiveness of these drugs in patients with pre-existing diabetic retinopathy in a large population-based cohort. METHODS: We conducted a propensity score-matched cohort study using Taiwan's National Health Insurance Research Database. We included adult patients prescribed an ACE inhibitor or ARB within 90 days after diagnosis of diabetic retinopathy between 2000 and 2010. Primary outcomes were all-cause death and major adverse cardiovascular events (myocardial infarction, ischemic stroke or cardiovascular death). Secondary outcomes were hospital admissions with acute kidney injury or hyperkalemia. RESULTS: We identified 11 246 patients receiving ACE inhibitors and 15 173 receiving ARBs, of whom 9769 patients in each group were matched successfully by propensity scores. In the intention-to-treat analyses, ARBs were similar to ACE inhibitors in risk of all-cause death (hazard ratio [HR] 0.94, 95% confidence interval [CI] 0.87-1.01) and major adverse cardiovascular events (HR 0.95, 95% CI 0.87-1.04), including myocardial infarction (HR 1.03, 95% CI 0.88-1.20), ischemic stroke (HR 0.94, 95% CI 0.85-1.04) and cardiovascular death (HR 1.01, 95% CI 0.88-1.16). They also did not differ from ACE inhibitors in risk of hospital admission with acute kidney injury (HR 1.01, 95% CI 0.91-1.13) and hospital admission with hyperkalemia (HR 1.01, 95% CI 0.86-1.18). Results were similar in as-treated analyses. INTERPRETATION: Our study showed that ACE inhibitors were similar to ARBs in risk of all-cause death, major adverse cardiovascular events and adverse effects among patients with pre-existing diabetic retinopathy.


Asunto(s)
Antagonistas de Receptores de Angiotensina/uso terapéutico , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Retinopatía Diabética/tratamiento farmacológico , Lesión Renal Aguda/mortalidad , Antagonistas de Receptores de Angiotensina/efectos adversos , Inhibidores de la Enzima Convertidora de Angiotensina/efectos adversos , Enfermedades Cardiovasculares/mortalidad , Causas de Muerte , Femenino , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Puntaje de Propensión , Taiwán/epidemiología , Resultado del Tratamiento
15.
Transl Lung Cancer Res ; 12(5): 1078-1092, 2023 May 31.
Artículo en Inglés | MEDLINE | ID: mdl-37323166

RESUMEN

Background: This study aimed to evaluate the effect of the presence of a radiographically manifested ground-glass opacity (GGO) component on the prognosis of patients with pathological stage IA3 lung adenocarcinoma. Methods: Patients diagnosed with pathological stage IA3 lung adenocarcinoma who underwent radical surgery at two medical institutions in China between July 2012 and July 2020 were enrolled. The cumulative incidence of recurrence (CIR) and cumulative incidence of death (CID) in patients with and without a GGO component were compared. Risk curves for the recurrence and tumor-related death overtime were analyzed between the two groups according to life table. In order to validate the prognostic value of GGO components, the recurrence-free survival (RFS) and cancer-specific survival (CSS) were estimated. Decision curve analysis (DCA) was performed to evaluate the clinical benefit rate of different models. Results: Among the 352 included patients, the presence of a GGO component was radiographically shown in 166 (47.2%) patients, while 186 (52.8%) displayed solid nodules. Patients exhibiting the absence of a GGO component had higher incidences of total recurrence (17.2% vs. 3.0%, P<0.001), local-regional recurrence (LRR) (5.4% vs. 0.6%, P=0.010), distant metastasis (DM) (8.1% vs. 1.8%, P=0.008), and multiple recurrences (4.3% vs. 0.6%, P=0.028) than the presence-GGO component group. The 5-year CIR and CID were 7.5% and 7.4% in the presence-GGO component group, and 24.5% and 17.0% in the absence-GGO component group, respectively, with statistically significant differences between the two groups (P<0.05). The risk of recurrence in patients with the presence of GGO components showed a single peak at 3 years postoperatively, while patients with the absence of GGO components showed a double peak at 1 and 5 years after surgery, respectively. However, the risk of tumor-related death peaked in both groups at 3 and 6 years postoperatively. Multivariate Cox analysis showed that the presence of a GGO component was a favorable independent risk factor for pathological stage IA3 lung adenocarcinoma patients (P<0.05). Conclusions: Pathological stage IA3 lung adenocarcinoma with or without GGO components are two types of tumors with different invasive abilities. In clinical practice, we should develop different treatment and follow-up strategies.

16.
J Exp Bot ; 63(1): 275-92, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21940719

RESUMEN

Leaf senescence is a highly regulated developmental process that is coordinated by several factors. Many senescence-associated genes (SAGs) have been identified, but their roles during senescence remain unclear. A sweet potato (Ipomoea batatas) SAG, named SPA15, whose function was unknown, was identified previously. To understand the role of SPA15 in leaf senescence further, the orthologue of SPA15 in Arabidopsis thaliana was identified and characterized, and it was named ARABIDOPSIS A-FIFTEEN (AAF). AAF was expressed in early senescent leaves and in tissues with highly proliferative activities. AAF was localized to the chloroplasts by transient expression in Arabidopsis mesophyll protoplasts. Overexpression of AAF (AAF-OX) in Arabidopsis promoted, but the T-DNA insertion mutant (aaf-KO), delayed age-dependent leaf senescence. Furthermore, stress-induced leaf senescence caused by continuous darkness was enhanced in AAF-OX but suppressed in aaf-KO. Transcriptome analysis of expression profiles revealed up-regulated genes related to pathogen defence, senescence, and oxidative stress in 3-week-old AAF-OX plants. Indeed, elevated levels of reactive oxygen species (ROS) and enhanced sensitivity to oxidative and dark stress were apparent in AAF-OX but reduced in aaf-KO. ETHYLENE INSENSITIVE2 (EIN2) was required for the dark- and ROS-induced senescence phenotypes in AAF-OX and the induction of AAF expression by treatment with the immediate precursor of ethylene, 1-aminocyclopropane-1-carboxylic acid. The results indicate the functional role of AAF is an involvement in redox homeostasis to regulate leaf senescence mediated by age and stress factors during Arabidopsis development.


Asunto(s)
Proteínas de Arabidopsis/fisiología , Arabidopsis/fisiología , Hojas de la Planta/fisiología , Especies Reactivas de Oxígeno/metabolismo , Arabidopsis/genética , Arabidopsis/metabolismo , Oscuridad , Perfilación de la Expresión Génica , Genes de Plantas , Homeostasis , Oxidación-Reducción , Raíces de Plantas/crecimiento & desarrollo , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Transcriptoma
17.
Front Psychol ; 13: 742546, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35356331

RESUMEN

Existing research on leader humility primarily demonstrates its positive effects. This study challenges this view by proposing the potential negative effects of leader humility on followers' behaviors. Furthermore, this paper employs the person-situation interactionist perspective to extend the research on integrating followers' personality traits and leader humility. Specifically, this study proposed that leader humility triggers their followers' sense of power; moreover, this study wagers that whether followers' sense of power encourages self-interested or prosocial behavior in followers depends on their particular Machiavellian traits. The theoretical model was tested using the time-lagged supervisor-subordinate matched data obtained. Our findings revealed that follower Machiavellianism fosters the relationship between a sense of power and self-interested behavior but it weakens the relationship between a sense of power and prosocial behavior. Thus, this study provides a better understanding regarding the effect of follower personality and leader humility on follower behavioral reactions.

18.
Front Psychol ; 13: 950059, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36072031

RESUMEN

This study aimed to explore the psychological mechanisms through which psychological safety and self-efficacy mediate the relationship between leader-expressed humility and employee voice. Moreover, attribution theory was applied to examine the possible detrimental effects of leader-expressed humility when employees perceive manipulative intentions in their humble leader. The current study proposed the leader's manipulative intention as a moderator to weaken the indirect relationships between leader-expressed humility and employee voice through psychological safety and self-efficacy. Time-lagged supervisor-subordinate matched data were used to test the model. Our findings reveal leader's manipulative intention weakens the positive effect that leader-expressed humility impacts on employee voice through psychological safety and self-efficacy. The implications of the findings were discussed from both theoretical and practical perspectives.

19.
Front Psychol ; 13: 762920, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35756217

RESUMEN

Employee silence has multiple negative effects on the organization. Studies on the influence of leader negative emotional expression on employee silence are extremely limited, and there are inconsistent findings for the expression of negative emotion among leaders, which highlight the need to explore boundary factors in this field. The purpose of this paper is based on EASI model to examine the impact of leaders' negative emotional expression on employee silence through the perceptions of psychological safety. Moreover, drawing on social exchange theory, this paper proposed a moderated mediation model to explore how leader-member exchange (LMX) moderates the indirect relationship between leader negative emotional expression and employee silence through perceptions of psychological safety. We employed a bootstrapping technique to analyze the hypotheses. This study adopts two-wave surveys and the results shown that leader negative emotional expression triggered employee silence by employees' perceptions of psychological safety. This study also demonstrated that LMX weakens the relationship between leader negative emotional expression and employees' perceptions of psychological safety. Furthermore, LMX weakens the indirect relationship between leader negative emotional expression and employee silence through employees' perceptions of psychological safety. Using multiphase data collection, we found that when LMX is at a low level, the indirect effect of leader negative emotional expression on employee silence through employee psychological safety is stronger. The theoretical, practical implications and future research suggestions are discussed.

20.
Cancer Nurs ; 45(6): 481-487, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35025771

RESUMEN

BACKGROUND: Advance directives (ADs) are used to respect the will of patients experiencing a terminal illness regarding preferred medical treatment and to protect their rights. However, the AD completion rate is low. OBJECTIVE: The aim of this study was to explore the factors influencing patient intentions toward AD. METHODS: The Theory of Planned Behavior was used as the framework for this study. This study used a cross-sectional design using a face-to-face interview with structured questionnaires. A total of 230 patients with cancer were recruited. Path analysis was used to examine the hypotheses. RESULTS: Demographic variables were not correlated with patients' attitudes toward AD. Patients' knowledge of AD ( ß = .68, t = 16.15, P < .00) and recognition of important others' attitudes toward AD ( ß = .30, t = 10.74, P < .00) were predictors of patients' attitudes toward AD. Patients' attitudes toward AD ( ß = .27, t = 3.74, P < .00) and behavior control over AD ( ß = .09, t = 1.99, P < .04) predicted patients' intentions toward AD. CONCLUSION: Patients' knowledge of AD, the patients' important others' attitudes, and behavior control toward AD are predictively associated with the intention toward AD completion. IMPLICATIONS FOR PRACTICE: Only when patients with cancer are provided an accessible approach for obtaining knowledge regarding AD and are given sufficient time and space can they and their significant others understand the meaning of AD and decide to complete one on their own terms.


Asunto(s)
Intención , Neoplasias , Adulto , Humanos , Estudios Transversales , Directivas Anticipadas , Encuestas y Cuestionarios , Neoplasias/terapia , Conocimientos, Actitudes y Práctica en Salud
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