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1.
BMC Public Health ; 24(1): 1186, 2024 Apr 27.
Artículo en Inglés | MEDLINE | ID: mdl-38678225

RESUMEN

BACKGROUND/OBJECTIVE: Limited evidence exists regarding the socioeconomic inequalities in cerebrovascular disease (CBD) mortality at different urbanization levels. Therefore, this study was conducted to assess the socioeconomic inequalities and urbanization levels in township-based CBD mortality in Taiwan. METHODS: Socioeconomic variables, including the percentages of low-income households, individuals with a university education and above, and tax payments, were measured at the township level from 2011 to 2020. Urbanization was also determined by the national survey and divided into seven levels. Age-standardized mortality rate (ASMR) of CBD was calculated using a Geographic Information System (GIS) in 358 townships. The effects of socioeconomic variables and urbanization levels on relative and absolute inequalities in township-based CBD mortality rates were examined. RESULTS: Significant differences in ASMR of CBD were observed across all socioeconomic status indicators over the years. Higher proportions of low-income households were associated with higher ASMR of CBD. Conversely, there were negative correlations between higher proportions of individuals with a university education and above and tax payments with ASMR of CBD. The regression analysis indicated significant impacts of relative and absolute socioeconomic inequalities on ASMR of CBD. Additionally, a moderation effect of socioeconomic variables and urbanization on CBD mortality rates was observed, with rural areas showing sensitivity to these factors. CONCLUSION: Although ASMR of CBD showed significant decreases over time, socioeconomic inequalities in CBD mortality rates persist. Interventions targeting socioeconomic inequalities in health outcomes, especially in rural areas, are needed to address this issue.


Asunto(s)
Trastornos Cerebrovasculares , Disparidades en el Estado de Salud , Clase Social , Urbanización , Humanos , Taiwán/epidemiología , Trastornos Cerebrovasculares/mortalidad , Femenino , Masculino , Persona de Mediana Edad , Anciano , Adulto , Factores Socioeconómicos
2.
Ann Plast Surg ; 88(6): 674-678, 2022 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-35612536

RESUMEN

BACKGROUND: The aims of this study were to investigate if recipient artery choice in right lobe living donor liver transplant affects postoperative complications and discuss solutions accordingly. METHODS: Three hundred fourteen right lobe living donor liver transplantation patients were divided into 2 groups: 163 patients using right hepatic artery as the recipient vessel and 151 patients using left hepatic artery as the recipient vessel. Cases involving 2 recipient blood vessels or the use of other blood vessels as recipient vessels were excluded. RESULTS: Overall vascular embolism rate in both groups was 1.3%, and our complication rate was lower than those in previous studies. There was no significant difference in complication rate between the groups, but a significant difference in recipient/donor artery size ratio was noted. CONCLUSIONS: Although left hepatic artery's anatomical position makes it less affected by bile duct anastomosis and thus fewer postoperative complications, we believe that the ratio of the donor-recipient blood vessel size and the length of the anastomosis vessel stumps are the key factors that affect the outcome of the vascular anastomosis.


Asunto(s)
Trasplante de Hígado , Donadores Vivos , Anastomosis Quirúrgica , Arteria Hepática/cirugía , Humanos , Complicaciones Posoperatorias/epidemiología
3.
BMC Gastroenterol ; 21(1): 228, 2021 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-34016057

RESUMEN

BACKGROUND: Many factors cause hospital mortality (HM) after liver transplantation (LT). METHODS: We performed a retrospective research in a single center from October 2005 to June 2019. The study included 463 living donor LT patients. They were divided into a no-HM group (n = 433, 93.52%) and an HM group (n = 30, 6.48%). We used logistic regression analysis to determine how clinical features and surgical volume affected HM. We regrouped patients based on periods of surgical volume and analyzed the clinical features. RESULTS: Multivariate analysis revealed that donor age (OR = 1.050, 95% CI 1.011-1.091, p = 0.012), blood loss (OR = 1.000, 95% CI 1.000-1.000, p = 0.004), and annual surgical volumes being < 30 LTs (OR = 2.540, 95% CI 1.011-6.381, p = 0.047) were significant risk factors. A comparison of years based on surgical volume found that when the annual surgical volumes were at least 30 the recipient age (p = 0.023), donor age (p = 0.026), and ABO-incompatible operations (p < 0.001) were significantly higher and blood loss (p < 0.001), operative time (p < 0.001), intensive care unit days (p < 0.001), length of stay (p = 0.011), rate of re-operation (p < 0.001), and HM (p = 0.030) were significantly lower compared to when the annual surgical volumes were less than 30. CONCLUSIONS: Donor age, blood loss and an annual surgical volume < 30 LTs were significant pre- and peri-operative risk factors. Hospital mortality and annual surgical volume were associated with statistically significant differences; surgical volume may impact quality of care and transplant outcomes.


Asunto(s)
Trasplante de Hígado , Mortalidad Hospitalaria , Humanos , Donadores Vivos , Estudios Retrospectivos , Factores de Riesgo
4.
Health Qual Life Outcomes ; 19(1): 42, 2021 Feb 04.
Artículo en Inglés | MEDLINE | ID: mdl-33541360

RESUMEN

BACKGROUND: Preventive health checkups have gained in importance over the last decade. The association of health checkups and the number of diseases with health-related quality of life (HRQoL), including physical and mental health, remains unclear. We sought to investigate the aforementioned association among Taiwanese public servants. METHODS: A cross-sectional survey was conducted using randomized and multistage stratified cluster sampling based on proportional probabilistic sampling. The questionnaires addressed demographics, job characteristics, health behaviors, health status, 3 types of health checkups during the preceding 3 years (government-paid health checkup [GPHC], self-paid health checkup [SPHC], and no health checkup [NOHC]), and physical component summary (PCS) and mental component summary (MCS) scores of the Short-Form Health Survey. In total 11,454 middle-aged public servants were analyzed. A multivariate general linear model (GLM) was used to estimate PCS and MCS scores by using least square means. RESULTS: Health checkup types were associated with a significant difference in PCS scores among the public servants. Scores of PCS and MCS were both significantly higher in the GPHC group than in the NOHC group for those with no chronic diseases (51.20 vs. 50.66 [P = 0.008] and 46.23 vs. 45.58 [P = 0.02], respectively). Compared with the NOHC group, both scores of GPHC and SPHC groups were significantly associated with higher PCS scores for public servants with ≥ 2 chronic diseases (46.93 vs. 45.13 [P = 0.002] and 46.52 vs. 45.13 [P = 0.009], respectively). CONCLUSION: In Taiwan, public servants undergoing GPHCs are more likely to report higher PCS scores than are those undergoing SPHCs. It is crucial that encourage periodically using the health checkup to improve health status and HRQoL.


Asunto(s)
Estado de Salud , Salud Mental , Ocupaciones/estadística & datos numéricos , Calidad de Vida , Enfermedad Crónica , Estudios Transversales , Femenino , Encuestas Epidemiológicas , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Taiwán
5.
J Formos Med Assoc ; 120(12): 2128-2135, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34175159

RESUMEN

BACKGROUND/PURPOSE: Our previous study found significantly lower serum hematinic levels and higher serum homocysteine level as well as higher frequencies of serum hematinic deficiencies and hyperhomocysteinemia in oral leukoplakia (OL) patients than in healthy control subjects. This study evaluated whether carcinoembryonic antigen (CEA)-positive or squamous cell carcinoma-antigen (SCC-Ag)-positive OL patients had significantly lower serum hematinic levels and higher serum homocysteine level as well as significantly higher frequencies of hematinic deficiencies and hyperhomocysteinemia than CEA-negative or SCC-Ag-negative OL patients or healthy control subjects. METHODS: The complete blood count, serum iron, vitamin B12, folic acid, and homocysteine levels in 184 OL patients including 85 CEA-positive, 99 CEA-negative, 25 SCC-Ag-positive, and 159 SCC-Ag-negative OL patients and in 184 age- and sex-matched healthy control subjects were measured and compared. RESULTS: We found that the 85 CEA-positive or 25 SCC-Ag-positive OL patients had a significantly lower mean serum folic acid level and a significantly higher mean serum homocysteine level as well as significantly higher frequencies of serum folic acid deficiency and hyperhomocysteinemia than 184 healthy control subjects. Moreover, the 25 SCC-Ag-positive OL patients had a significantly higher mean serum homocysteine level than the 159 SCC-Ag-negative OL patients. The 85 CEA-positive OL patients had a higher mean serum homocysteine level and a higher frequency of hyperhomocysteinemia than 99 CEA-negative OL patients (marginally significant, P = 0.060). CONCLUSION: CEA-positive or SCC-Ag-positive OL patients tend to have a higher mean serum homocysteine level and a higher frequency of hyperhomocysteinemia than CEA-negative or SCC-Ag-negative OL patients, respectively.


Asunto(s)
Homocisteína/sangre , Hiperhomocisteinemia , Leucoplasia Bucal , Antígenos de Neoplasias , Autoanticuerpos , Antígeno Carcinoembrionario , Índices de Eritrocitos , Ácido Fólico , Hemoglobinas/análisis , Humanos , Hiperhomocisteinemia/epidemiología , Hierro , Leucoplasia Bucal/epidemiología , Células Parietales Gástricas , Serpinas , Vitamina B 12
6.
J Formos Med Assoc ; 120(6): 1324-1331, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33581964

RESUMEN

BACKGROUND/PURPOSE: Several previous studies have reported higher serum tumor marker levels in patients with oral or head and neck squamous cell carcinomas. This study evaluated whether 232 patients with oral precancerous lesions (oral precancer patients) had significantly higher serum carcinoembryonic antigen (CEA), squamous cell carcinoma antigen (SCC-Ag), and ferritin levels than healthy control subjects. METHODS: The serum CEA, SCC-Ag, and ferritin levels in 232 oral precancer patients and 187 healthy control subjects were measured and compared. Patients with serum CEA level ≥3 ng/mL, SCC-Ag level ≥2 ng/mL, and ferritin level ≥250 ng/mL were scored as serum positive for CEA, SCC-Ag, and ferritin, respectively. RESULTS: We found significantly higher mean serum CEA, SCC-Ag, and ferritin levels in 232 oral precancer patients than in 187 healthy control subjects (all P-values < 0.05). Moreover, 232 oral precancer patients had significantly higher serum positive rates of CEA (47.4%), SCC-Ag (13.8%), and ferritin (52.2%) than 187 healthy control subjects (all P-values < 0.05). Of the 232 oral precancer patients, 121 (52.1%), 56 (24.1%), and 10 (4.3%) had serum positivities of one, two, or three tumor markers including CEA, SCC-Ag, and ferritin, respectively. CONCLUSION: There are significantly higher mean serum CEA, SCC-Ag, and ferritin levels and significantly higher serum positive rates of CEA, SCC-Ag, and ferritin in oral precancer patients than in healthy control subjects. The serum CEA, SCC-Ag, and ferritin levels are of diagnostic value and may be potential tumor markers for the screening of oral precancer patients.


Asunto(s)
Carcinoma de Células Escamosas , Lesiones Precancerosas , Serpinas , Antígenos de Neoplasias , Biomarcadores de Tumor , Antígeno Carcinoembrionario , Humanos , Tamizaje Masivo
7.
J Clin Periodontol ; 47(12): 1496-1510, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-33010026

RESUMEN

AIM: This systematic review and network meta-analysis aimed to evaluate the efficacy of adjunctive locally delivered antimicrobials, compared to subgingival instrumentation alone or plus a placebo, on changes in probing pocket depth (PPD) and clinical attachment level (CAL), in patients with residual pockets during supportive periodontal care. MATERIALS AND METHODS: Literature search was performed with electronic databases and by hand until 31 May 2020. Primary outcome was the changes in PPD. The treatment effects between groups were estimated with weighted mean differences (WMD) with 95% confidence intervals (CI) and prediction intervals (PI) by using random-effects network meta-analysis. RESULTS: Twenty-two studies were included. Significantly greater PPD reduction was achieved in chlorhexidine chip group (WMD: 0.65 mm, 95% CI: 0.21-1.10) and tetracycline fibre group (WMD: 0.64 mm, 95% CI: 0.20-1.08) over 6-month follow-up. Other adjunctive antimicrobial agents achieved non-significant improvements compared to scaling and root planing alone. All differences between adjunctive therapies were statistically non-significant. Similar findings were observed for CAL gain. CONCLUSION: Adjunctive local antimicrobial agents achieved small additional PPD reduction and CAL gain in residual pockets for a follow-up of up to 6 months. Tetracycline fibre and chlorhexidine chip achieved better results than other antimicrobials.


Asunto(s)
Clorhexidina , Raspado Dental , Antibacterianos/uso terapéutico , Clorhexidina/uso terapéutico , Humanos , Metaanálisis en Red , Aplanamiento de la Raíz
8.
Ann Plast Surg ; 83(2): 224-225, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31135510

RESUMEN

BACKGROUND: Early hepatic artery (HA) thrombosis and primary graft failure contribute greatly to the mortality of patients after liver transplantation. Herein, we present the treatment of intimal injury of HA by intraoperative fluorescence vascular stenting. METHODS: A sample of 471 patients receiving liver transplantations underwent arterial anastomosis. Six patients (1.3%) were found to have early HA thrombosis. Two patients had thrombi that were impenetrable with a guide wire. Intimal injury on both the graft and the donor sides of the HA was found after thrombectomy. We performed anastomosis between unhealthy graft vessels and healthy recipient vessels. Intraoperative angiography was done immediately because of the guide wire being easier to insert through a fresh thrombus, and a long endovascular stent was inserted to bypass the injured vessels. RESULTS: The proper HA was reconstructed under microscopy. Three days after reconstruction, an angioplasty showed no dissection, stenosis, or pseudoaneurysm of the HA. Unexpectedly, these 2 patients survived well with acceptable graft functionality, one based on a 32-month follow-up and the other based on a 2-month follow-up. CONCLUSION: Anastomosis of the intimally injured graft artery followed by immediate endovascular angioplasty with stenting to bypass the injury zone is an efficacious and tolerable procedure.


Asunto(s)
Arteriopatías Oclusivas/cirugía , Arteria Hepática/cirugía , Trasplante de Hígado , Stents , Túnica Íntima/lesiones , Anastomosis Quirúrgica , Angiografía , Angioplastia , Fluorescencia , Humanos
9.
J Formos Med Assoc ; 118(12): 1616-1622, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31377113

RESUMEN

BACKGROUND/PURPOSE: Oral cancer patients who survive for more than 5 years are supposed to have a reduced local cancer recurrence rate and survive longer. This study evaluated whether oral cancer patients who survived for more than 5 years might have reduced rates of local cancer recurrence, development of the second or third primary oral cancer, or the late regional cervical lymph node metastasis. METHODS: This study analyzed the clinical outcomes of 127 oral cancer patients (101 men and 26 women; mean age, 50.8 ± 12.1 years) who survived for more than 5 years after proper treatments of the initial primary oral cancers. RESULTS: The 127 primary oral cancers included 117 squamous cell carcinomas (SCCs), 7 mucoepidermoid carcinomas, and 3 others. Of the 127 oral cancer patients who survived for more than 5 years, 47 survived for 5-9 years, 45 for 10-14 years, 22 for 15-19 years, 10 for 20-24 years, two for 25-29 years, and one for 30 years. Ten patients had local cancer recurrence 5.4 years-13.7 years, 12 patients had a second or a third primary oral cancer 3.6 years-17.2 years, and one mucoepidermoid carcinoma patient had a late regional cervical lymph node metastasis 11.9 years after total excision of the initial primary oral cancers. CONCLUSION: Oral cancer patients who survive for more than 5 years may still have local cancer recurrence, the second or third primary oral cancer, or the late regional cervical lymph node metastasis but with a reduced rate.


Asunto(s)
Carcinoma Mucoepidermoide/mortalidad , Carcinoma de Células Escamosas/mortalidad , Neoplasias de la Boca/mortalidad , Recurrencia Local de Neoplasia/mortalidad , Neoplasias Primarias Secundarias/mortalidad , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Femenino , Humanos , Metástasis Linfática , Masculino , Persona de Mediana Edad , Neoplasias de la Boca/cirugía , Estadificación de Neoplasias , Tasa de Supervivencia , Taiwán , Factores de Tiempo , Adulto Joven
10.
Int J Mol Sci ; 20(13)2019 Jul 09.
Artículo en Inglés | MEDLINE | ID: mdl-31323961

RESUMEN

Glioblastoma multiforme (GBM) is the most aggressive primary brain tumor with poor prognosis, largely due to resistance to current radiotherapy and Temozolomide chemotherapy. The constitutive activation of Signal Transducer and Activator of Transcription 3 (STAT3) is evidenced as a pivotal driver of GBM pathogenesis and therapy resistance, and hence, is a promising GBM drug target. 5-acetyloxy-6,7,8,4'-tetramethoxyflavone (5-AcTMF) is an acetylated derivative of Tangeretin which is known to exert anticancer effects on breast, colon, lung, and multiple myeloma; however, its effect on GBM remains elusive. Herein, we reported that 5-AcTMF suppressed the viability and clonogenicity along with inducing apoptosis in multiple human GBM cell lines. Mechanistic analyses further revealed that 5-AcTMF lowered the levels of Tyrosine 705-phosphorylated STAT3 (p-STAT3), a canonical marker of STAT3 activation, but also dampened p-STAT3 upregulation elicited by Interleukin-6. Notably, ectopic expression of dominant-active STAT3 impeded 5-AcTMF-induced suppression of viability and clonogenicity plus apoptosis induction in GBM cells, confirming the prerequisite of STAT3 blockage for the inhibitory action of 5-AcTMF on GBM cell survival and growth. Additionally, 5-AcTMF impaired the activation of STAT3 upstream kinase JAK2 but also downregulated antiapoptotic BCL-2 and BCL-xL in a STAT3-dependent manner. Moreover, the overexpression of either BCL-2 or BCL-xL abrogated 5-AcTMF-mediated viability reduction and apoptosis induction in GBM cells. Collectively, we, for the first time, revealed the anticancer effect of 5-AcTMF on GBM cells, which was executed via thwarting the JAK2-STAT3-BCL-2/BCL-xL signaling axis. Our findings further implicate the therapeutic potential of 5-AcTMF for GBM treatment.


Asunto(s)
Antineoplásicos/farmacología , Supervivencia Celular/efectos de los fármacos , Flavonas/química , Flavonas/farmacología , Glioblastoma/metabolismo , Sistemas de Lectura Abierta/genética , Factor de Transcripción STAT3/metabolismo , Antineoplásicos/química , Apoptosis/efectos de los fármacos , Línea Celular , Línea Celular Tumoral , Humanos , Interleucina-6/metabolismo , Factor de Transcripción STAT3/genética , Proteína bcl-X/metabolismo
11.
Int J Mol Sci ; 19(10)2018 Sep 22.
Artículo en Inglés | MEDLINE | ID: mdl-30249017

RESUMEN

Cell stiffness is a potential biomarker for monitoring cellular transformation, metastasis, and drug resistance development. Environmental factors relayed into the cell may result in formation of inheritable markers (e.g., DNA methylation), which provide selectable advantages (e.g., tumor development-favoring changes in cell stiffness). We previously demonstrated that targeted methylation of two tumor suppressor genes, hypermethylated in cancer 1 (HIC1) and Ras-association domain family member 1A (RassF1A), transformed mesenchymal stem cells (MSCs). Here, transformation-associated cytoskeleton and cell stiffness changes were evaluated. Atomic force microscopy (AFM) was used to detect cell stiffness, and immunostaining was used to measure cytoskeleton expression and distribution in cultured cells as well as in vivo. HIC1 and RassF1A methylation (me_HR)-transformed MSCs developed into tumors that clonally expanded in vivo. In me_HR-transformed MSCs, cell stiffness was lost, tubulin expression decreased, and F-actin was disorganized; DNA methylation inhibitor treatment suppressed their tumor progression, but did not fully restore their F-actin organization and stiffness. Thus, me_HR-induced cell transformation was accompanied by the loss of cellular stiffness, suggesting that somatic epigenetic changes provide inheritable selection markers during tumor propagation, but inhibition of oncogenic aberrant DNA methylation cannot restore cellular stiffness fully. Therefore, cell stiffness is a candidate biomarker for cells' physiological status.


Asunto(s)
Metilación de ADN , Factores de Transcripción de Tipo Kruppel/genética , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patología , Células Madre Mesenquimatosas/patología , Tubulina (Proteína)/metabolismo , Proteínas Supresoras de Tumor/genética , Animales , Apoptosis , Biomarcadores de Tumor , Movimiento Celular , Proliferación Celular , Transformación Celular Neoplásica/genética , Transformación Celular Neoplásica/metabolismo , Transformación Celular Neoplásica/patología , Humanos , Factores de Transcripción de Tipo Kruppel/metabolismo , Neoplasias Hepáticas/genética , Células Madre Mesenquimatosas/metabolismo , Ratones , Ratones Desnudos , Pronóstico , Regiones Promotoras Genéticas , Estrés Mecánico , Tubulina (Proteína)/genética , Células Tumorales Cultivadas , Proteínas Supresoras de Tumor/metabolismo , Ensayos Antitumor por Modelo de Xenoinjerto
12.
Molecules ; 23(8)2018 Aug 13.
Artículo en Inglés | MEDLINE | ID: mdl-30104508

RESUMEN

Ursolic acid (UA), is a kind of triterpene acid that exhibits wide biological properties. In this article, the effects of UA on apoptosis and the proliferation of human hepatoma Huh-7 cells were reported. The MTT results showed that cell viability of Huh-7 was reduced in a concentration and time-dependent effect. In addition, DAPI staining was used to detected condensation of chromatin in nucleus. Apoptotic cell population was examined using Annexin V/PI staining. The results showed that exposure to UA affected extrinsic and intrinsic pathways through, reduced expression of Bcl-2, Mcl-1, and TCTP; increased levels of the apoptotic proteins TNF-α, Fas, FADD, and Bax; and activation of cleaved caspase-3 and PARP. UA also inhibited the p-Akt and p38 MAPK signaling transduction pathways, and increased activity in the p-ERK signaling pathway. Taken together, UA inhibited the cell growth of Huh-7 cells and affected apoptosis, via regulated cellular signaling transduction.


Asunto(s)
Apoptosis/efectos de los fármacos , Proteínas Quinasas Activadas por Mitógenos/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Transducción de Señal/efectos de los fármacos , Triterpenos/farmacología , Caspasa 3/genética , Caspasa 3/metabolismo , Ciclo Celular/efectos de los fármacos , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Humanos , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , Estructura Molecular , Poli(ADP-Ribosa) Polimerasas/genética , Poli(ADP-Ribosa) Polimerasas/metabolismo , Triterpenos/química , Proteína Tumoral Controlada Traslacionalmente 1 , Ácido Ursólico
13.
Int J Environ Health Res ; 28(2): 159-166, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29564918

RESUMEN

This study aims to assess the relationship between risk perception, attitude, and avoidance among residents toward an urban incinerator in Taichung, Taiwan. A cross-sectional study was conducted and three schools were enrolled. The case group was composed of 514 residents who live near an incinerator. The control group was composed of 264 people nearly the same age and who have lived in that area basically the same period of time. All participants were interviewed using a structured questionnaire. Results of this study showed that there was no significant difference between the exposure group and the control group in risk perception and attitude regarding the incinerator. However, the exposure group showed a significantly higher desire to move within one year or move sometime in the future than the control group. Therefore, these people should encourage the Environmental Protection Administration (EPA) to do everything it can to make sure that the incinerator operates safely.


Asunto(s)
Reacción de Prevención , Exposición a Riesgos Ambientales , Conocimientos, Actitudes y Práctica en Salud , Incineración , Medición de Riesgo , Residuos Sólidos , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Percepción , Taiwán
14.
Ann Surg Oncol ; 24(2): 578-585, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26671036

RESUMEN

BACKGROUND: Methylation changes within tumor suppressor (TS) genes or polycomb group target (PcG) genes alter cell fates. Chromatin associated with PcG targets is bivalent in stem cells, while TS genes are not normally bivalent. PcG target methylation changes have been identified in tumor stem cells, and abnormal methylation is found in TS genes in cancers. If the epigenetic states of genes influence DNA methylation, then methylation of PcG targets and TS genes may evolve differently during cancer development. More importantly, methylation changes may be part of a sequence in tumorigenesis. METHODS: Chromatin and methylation states of 4 PcG targets and 2 TS genes were determined in colon cancer cells. The methylation states were also detected in 100 pairs of colon cancer samples. Principle component analysis (PCA) was used to reveal whether TS methylation or PcG methylation was the main methylation change associated with colon cancers. RESULTS: Chromatin and methylation states differ in colon cancer cell lines. The methylation states within PcG targets clustered independently from the methylation states in TS genes, a finding we previously reported in liver cancers. PCA in colon cancers revealed the strongest association with methylation changes in 2 TS genes, HIC1 and RassF1A. Loss of HIC1 methylation correlated with decreased tumor migration. CONCLUSIONS: PcG and TS methylation states cluster independently from each other. The deduced principle component correlated better with TS methylation than PcG methylation in colon cancer. Abnormal methylation changes may represent a sequential biomarker profile to identify developing colon cancer.


Asunto(s)
Neoplasias del Colon/genética , Metilación de ADN , Regulación Neoplásica de la Expresión Génica , Factores de Transcripción de Tipo Kruppel/genética , Proteínas del Grupo Polycomb/genética , Proteínas Supresoras de Tumor/genética , Movimiento Celular , Neoplasias del Colon/patología , Epigénesis Genética , Genes Supresores de Tumor , Humanos , Células Tumorales Cultivadas
15.
BMC Cancer ; 17(1): 474, 2017 Jul 07.
Artículo en Inglés | MEDLINE | ID: mdl-28687090

RESUMEN

BACKGROUND: CD133 (prominin-1) is widely believed to be a cancer stem cell marker in various solid tumor types, and CD133 has been correlated with tumor-initiating capacity. Recently, the nuclear location of CD133 expression in tumors has been discussed, but hepatocellular carcinoma (HCC) has not been included in these discussions. The goal of this study was to investigate the location of CD133 expression in HCC and this location's potential value as a prognostic indicator of survival in patients with HCC. METHODS: We enrolled 119 cancerous tissues and pair-matched adjacent normal liver tissue from HCC patients. These tissues were obtained immediately after operation, and tissue microarrays were subsequently constructed. The expression of CD133 was measured by immunohistochemistry (IHC), and the correlations between this expression and clinical characteristics and prognosis was estimated using statistical analysis. RESULTS: The results showed that the CD133 protein expression levels of HCC in both the cytoplasm and nucleus were significantly higher than adjacent normal liver tissue. Kaplan-Meier survival and Cox regression analyses revealed that high CD133 expression in the cytoplasm was an independent predictor of poor prognosis for the overall survival (OS) and relapse-free survival (RFS) rates of HCC patients (P = 0.028 and P = 0.046, respectively). Surprisingly, high nuclear CD133 expression of HCC was an independent predictor of the good prognosis of the OS and RFS rates of HCC patients (P = 0.023 and P = 0.012, respectively). CONCLUSIONS: The clinical evidence that revealed cytoplasmic CD133 expression was correlated with poor prognosis, while nuclear CD133 expression was significantly correlated with favorable prognosis.


Asunto(s)
Antígeno AC133/metabolismo , Biomarcadores de Tumor , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/mortalidad , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/mortalidad , Células Madre Neoplásicas/metabolismo , Anciano , Anciano de 80 o más Años , Carcinoma Hepatocelular/patología , Línea Celular Tumoral , Núcleo Celular/metabolismo , Citoplasma/metabolismo , Femenino , Expresión Génica , Humanos , Inmunohistoquímica , Estimación de Kaplan-Meier , Neoplasias Hepáticas/patología , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Estadificación de Neoplasias , Células Madre Neoplásicas/patología , Pronóstico , Modelos de Riesgos Proporcionales , Transporte de Proteínas
16.
BMC Complement Altern Med ; 17(1): 88, 2017 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-28143460

RESUMEN

BACKGROUND: Lung cancer is one of the leading causes of cancer related deaths worldwide. Marine microalgae are a source of biologically active compounds and are widely consumed as a nutritional supplement in East Asian countries. It has been reported that Chlorella or Chlorella extracts have various beneficial pharmacological compounds that modulate immune responses; however, no studies have investigated the anti-cancer effects of Chlorella sorokiniana (CS) on non-small cell lung cancer (NSCLC). METHODS: In this study, we evaluated the anti-cancer effects of CS in two human NSCLC cell lines (A549 and CL1-5 human lung adenocarcinoma cells), and its effects on tumor growth in a subcutaneous xenograft tumor model. We also investigated the possible molecular mechanisms governing the pharmacological function of CS. RESULTS: Our results showed that exposure of the two cell lines to CS resulted in a concentration-dependent reduction in cell viability. In addition, the percentage of apoptotic cells increased in a dose-dependent manner, suggesting that CS might induce apoptosis in human NSCLC cells. Western blot analysis revealed that exposure to CS resulted in increased protein expression of the cleaved/activated forms of caspase-3, caspase-9, and PARP, except caspase-8. ZDEVD (caspase-3 inhibitor) and Z-LEHD (caspase-9 inhibitor) were sufficient at preventing apoptosis in both A549 and CL1-5 cells, proving that CS induced cell death via the mitochondria-mediated apoptotic pathway. Exposure of A549 and CL1-5 cells to CS for 24 h resulted in decreased expression of Bcl-2 protein and increased expression of Bax protein as well as decreased expression of two IAP family proteins, survivin and XIAP. CONCLUSIONS: We demonstrated that CS induces mitochondrial-mediated apoptosis in NSCLC cells via downregulation of Bcl-2, XIAP and survivin. In addition, we also found that the tumors growth of subcutaneous xenograft in vivo was markedly inhibited after oral intake of CS.


Asunto(s)
Antineoplásicos Fitogénicos/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Chlorella/química , Neoplasias Pulmonares/tratamiento farmacológico , Mitocondrias/efectos de los fármacos , Extractos Vegetales/farmacología , Animales , Apoptosis/efectos de los fármacos , Ensayos de Selección de Medicamentos Antitumorales , Femenino , Humanos , Ratones , Ratones Endogámicos BALB C , Mitocondrias/metabolismo , Ensayos Antitumor por Modelo de Xenoinjerto
17.
J Vasc Surg ; 64(2): 281-288, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27139785

RESUMEN

OBJECTIVE: This study investigated predisposing factors of distal stent graft-induced new entry (SINE). METHODS: Data from November 2006 to May 2012 were abstracted retrospectively from the records of 73 patients with complicated type B aortic dissection who had received stent graft treatment in our institution. Diameters of the true and false lumen, area and circumference of the true lumen, prestent and poststent oversize, taper, and mismatch ratio were recorded and analyzed to see if there were any significant differences between the SINE (n = 19) and non-SINE (n = 54) population and between those in whom the initial endograft was inserted from the proximal thoracic aorta (n = 49) or the distal thoracic aorta (n = 24). RESULTS: A distal-first sequence of stent graft deployment produced significantly fewer instances of distal SINE. The area oversizing ratio of the distal end of the stent graft was greater in the SINE vs non-SINE groups (3.76 ± 1.7 vs 2.63 ± 2.57; P = .002) and in the proximal-first vs distal-first deployment sequence groups (3.67 ± 2.57 vs 1.39 ± 0.90; P < .001). CONCLUSIONS: Minimizing the preprocedure distal oversizing ratio with a distal small graft-first procedure could reduce the risk of late distal SINE for Stanford type B aortic dissection. Furthermore, the area ratio is a potentially more sensitive modality for size assessment and prediction of distal SINE occurrence.


Asunto(s)
Aneurisma de la Aorta Torácica/cirugía , Disección Aórtica/cirugía , Implantación de Prótesis Vascular/métodos , Procedimientos Endovasculares/métodos , Complicaciones Posoperatorias/prevención & control , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Disección Aórtica/diagnóstico por imagen , Aneurisma de la Aorta Torácica/diagnóstico por imagen , Aortografía/métodos , Prótesis Vascular , Implantación de Prótesis Vascular/efectos adversos , Implantación de Prótesis Vascular/instrumentación , Angiografía por Tomografía Computarizada , Procedimientos Endovasculares/efectos adversos , Procedimientos Endovasculares/instrumentación , Femenino , Humanos , Masculino , Registros Médicos , Persona de Mediana Edad , Complicaciones Posoperatorias/etiología , Diseño de Prótesis , Estudios Retrospectivos , Factores de Riesgo , Stents , Taiwán , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
18.
Molecules ; 21(4): 460, 2016 Apr 20.
Artículo en Inglés | MEDLINE | ID: mdl-27104510

RESUMEN

Ursolic acid (UA) is a pentacyclic triterpene acid that is present in a wide variety of medicinal herbs and edible plants. This study investigated the effect of UA on apoptosis and proliferation of hepatocellular carcinoma SK-Hep-1 cells. After treatment of SK-Hep-1 cells with different concentrations of UA, we observed that cell viability was reduced in a dose- and time-dependent manner. Furthermore, there was a dose-dependent increase in the percentage of cells in the sub-G1 and G2/M phases, with cells treated with 60 µM showing the highest percentages of cells in those phases. UA-induced chromatin condensation of nuclei was observed by using DAPI staining. The western blot results revealed that exposure to UA was associated with decreased expression of the anti-apoptotic proteins Mcl-1, Bcl-xL, Bcl-2, and TCTP and increased expression of apoptosis-related proteins TNF-α, Fas, FADD, Bax, cleaved caspase-3, caspase-8, caspase-9, and PARP. Immunocytochemistry staining showed that treatment with UA resulted in increased expression of caspase-3. Moreover, exposure to UA resulted in the inhibition of the PI3K/Akt and p38 MAPK signaling pathways. These findings suggest that UA inhibits the proliferation of SK-Hep-1 cells and induces apoptosis.


Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Neoplasias Hepáticas/metabolismo , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , Triterpenos/farmacología , Apoptosis , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Humanos , Neoplasias Hepáticas/tratamiento farmacológico , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Proteína Tumoral Controlada Traslacionalmente 1 , Proteínas Quinasas p38 Activadas por Mitógenos/metabolismo , Ácido Ursólico
19.
J Gerontol Nurs ; 42(6): 25-31, 2016 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-27064607

RESUMEN

HOW TO OBTAIN CONTACT HOURS BY READING THIS ARTICLE INSTRUCTIONS 1.2 contact hours will be awarded by Villanova University College of Nursing upon successful completion of this activity. A contact hour is a unit of measurement that denotes 60 minutes of an organized learning activity. This is a learner-based activity. Villanova University College of Nursing does not require submission of your answers to the quiz. A contact hour certificate will be awarded once you register, pay the registration fee, and complete the evaluation form online at http://goo.gl/gMfXaf. To obtain contact hours you must: 1. Read the article, "Music Therapy Training for Undergraduate Nursing Students: A Modality to Foster Interest in Gerontological Nursing" found on pages 25-31, carefully noting any tables and other illustrative materials that are included to enhance your knowledge and understanding of the content. Be sure to keep track of the amount of time (number of minutes) you spend reading the article and completing the quiz. 2. Read and answer each question on the quiz. After completing all of the questions, compare your answers to those provided within this issue. If you have incorrect answers, return to the article for further study. 3. Go to the Villanova website listed above to register for contact hour credit. You will be asked to provide your name; contact information; and a VISA, MasterCard, or Discover card number for payment of the $20.00 fee. Once you complete the online evaluation, a certificate will be automatically generated. This activity is valid for continuing education credit until May 31, 2019. CONTACT HOURS This activity is co-provided by Villanova University College of Nursing and SLACK Incorporated. Villanova University College of Nursing is accredited as a provider of continuing nursing education by the American Nurses Credentialing Center's Commission on Accreditation. ACTIVITY OBJECTIVES 1. Identify the worldwide shortage of nurses specializing in gerontological nursing. 2. Describe the results of using music therapy to create positive attitudes toward older adults. DISCLOSURE STATEMENT Neither the planners nor the authors have any conflicts of interest to disclose. Nursing students generally have a negative attitude toward older adults. Preparing nurses to meet the care needs of an expanding aging population is a challenge for nursing educators. The purpose of the current study was to explore whether incorporating music therapy into a practical geriatric nursing course at a nursing home cultivates positive attitudes toward older adults, raises students' willingness to work with older adults, and increases their interest in specializing in gerontological nursing after graduation. Focus groups were conducted to collect data from three participant groups (N = 20). Verbatim transcripts of audiorecorded interviews were analyzed using content analysis, which revealed four themes: (a) better appreciation and understanding of music therapy, (b) role modeling instructors' successful experience and positive attitude toward older adults, (c) changing attitudes toward older adults, and (d) improving interaction skills with older adults. Results suggested music can be integrated into a gerontological nursing course to enhance students' motivation to learn, empathize, and approach older adults. [Journal of Gerontological Nursing, 42(6), 25-31.].


Asunto(s)
Enfermería Geriátrica/educación , Musicoterapia , Estudiantes de Enfermería , Actitud del Personal de Salud , Humanos , Estudiantes de Enfermería/psicología
20.
BMC Urol ; 15: 83, 2015 Aug 13.
Artículo en Inglés | MEDLINE | ID: mdl-26268947

RESUMEN

BACKGROUND: Impaired liver function in men can result in erectile dysfunction or hypogonadism or both. We investigated whether living donor liver transplantation (LDLT) results in improvement in male sexual function. METHODS: A total of 58 patients with end-stage liver disease (ESLD) were included in this prospective, cross-sectional study. Erectile function was measured before and after LDLT using a five-item modified version of the International Index of Erectile Function scale (IIEF-5) and hypogonadism was evaluated before and after LDLT using the Androgen Deficiency in the Aging Male (ADAM) questionnaire. Differences in mean values from the questionnaires before and after the operation were than evaluated to determine whether there is an association between LDLT and improvement in sexual function. RESULTS: We found that mean IIEF-5 scores significantly increased after LDLT (from 11.7 ± 7.7 before LDLT to 14.7 ± 7.5 after LDLT, p < 0.01), indicating that the operation played a role in improving erectile function. In addition, the prevalence of hypogonadism among the patients with ESLD decreased markedly after liver transplantation (hypogonadism before LDLT, n = 41 versus hypogonadism after LDLT, n = 31, p = 0.03). Patients with hypogonadism reported a higher prevalence of erectile dysfunction after LDLT than patients without hypogonadism (p < 0.01). CONCLUSIONS: LDLT results in improvement in erectile function. In addition, improvement in erectile function is associated with self-reported absence of hypogonadism.


Asunto(s)
Enfermedad Hepática en Estado Terminal/terapia , Disfunción Eréctil/prevención & control , Hipogonadismo/prevención & control , Trasplante de Hígado , Donadores Vivos , Satisfacción del Paciente , Autoevaluación Diagnóstica , Enfermedad Hepática en Estado Terminal/complicaciones , Disfunción Eréctil/diagnóstico , Disfunción Eréctil/etiología , Humanos , Hipogonadismo/diagnóstico , Hipogonadismo/etiología , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
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