Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 116
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
J Obstet Gynaecol Res ; 50(6): 982-990, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38570724

RESUMEN

PURPOSE: This study analyzes the relationship between human papillomavirus (HPV) infection, vaginal microecology, and cervical lesions to provide a basis for the prevention and treatment of cervical cancer (CC) in the Xinjiang region. METHODS: Real-time quantitative PCR was used for HPV genotyping and viral load. The Gram staining and dry biochemical enzyme kit were utilized to diagnose vaginal secretions. The χ2 test and Logistic regression analysis were used for statistical analysis. RESULTS: The HPV infection rate among women in the Xinjiang region was 30.29%, of which the single HPV infection accounts for 77%. HPV16 and HPV52 were the main infection types. There was significant differences in the HPV infection rate and infection types among the Han, Uighur, Hui, and Kazakh ethnic groups. The viral load of HPV16 and HPV52 increases with the upgrade of cervical lesions. There were significant differences in vaginal microecology evaluation indicators H2O2, SNA, LE, GUS, trichomonas, clue cells, and lactobacilli among different ethnic groups. HPV negative patients with varying grades of cervical lesions exhibit a notable variance in H2O2 and LE, which is statistically significant. Single HPV infection and high viral load HPV significantly increase the risk of CC. CONCLUSIONS: This study indicates that HPV infection and vaginal microecology differ among ethnic groups, which have a strong correlation with the progression of CC, offering guidance on CC screening and interventions in the Xinjiang area.


Asunto(s)
Infecciones por Papillomavirus , Displasia del Cuello del Útero , Neoplasias del Cuello Uterino , Vagina , Humanos , Femenino , China/epidemiología , Infecciones por Papillomavirus/virología , Adulto , Persona de Mediana Edad , Displasia del Cuello del Útero/virología , Displasia del Cuello del Útero/epidemiología , Displasia del Cuello del Útero/etnología , Neoplasias del Cuello Uterino/virología , Vagina/virología , Adulto Joven , Carga Viral
2.
Ann Surg ; 278(5): e988-e994, 2023 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-37309899

RESUMEN

OBJECTIVES: We aimed to determine the current incidence rate and risk factors for surgical site infection (SSI) after abdominal surgery in China and to further demonstrate the clinical features of patients with SSI. BACKGROUND: Contemporary epidemiology and clinical features of SSI after abdominal surgery remain poorly characterized. METHODS: A prospective multicenter cohort study was conducted from March 2021 to February 2022; the study included patients who underwent abdominal surgery at 42 hospitals in China. Multivariable logistic regression analysis was performed to identify risk factors for SSI. Latent class analysis (LCA) was used to explore the population characteristics of SSI. RESULTS: In total, 23,982 patients were included in the study, of whom 1.8% developed SSI. There was a higher SSI incidence in open surgery (5.0%) than in laparoscopic or robotic surgeries (0.9%). Multivariable logistic regression indicated that the independent risk factors for SSI after abdominal surgery were older age, chronic liver disease, mechanical bowel preparation, oral antibiotic bowel preparation, colon or pancreas surgery, contaminated or dirty wounds, open surgery, and colostomy/ileostomy. LCA revealed 4 subphenotypes in patients undergoing abdominal surgery. Types α and ß were mild subclasses with a lower SSI incidence; whereas types γ and δ were the critical subgroups with a higher SSI incidence, but their clinical features were different. CONCLUSIONS: LCA identified 4 subphenotypes in patients who underwent abdominal surgery. Types γ and δ were critical subgroups with a higher SSI incidence. This phenotype classification can be used to predict SSI after abdominal surgery.


Asunto(s)
Laparoscopía , Infección de la Herida Quirúrgica , Humanos , Infección de la Herida Quirúrgica/epidemiología , Infección de la Herida Quirúrgica/etiología , Estudios Prospectivos , Estudios de Cohortes , Laparoscopía/efectos adversos , Factores de Riesgo , Incidencia
3.
Gastrointest Endosc ; 94(3): 642-650, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-33798538

RESUMEN

BACKGROUND AND AIMS: Now that the debate about the safety and effectiveness of laparoscopic versus open surgery is over, attention has turned to innovations that can verify whether minimizing the impact of laparoscopy on the abdominal wall can further reduce pain, improve patient comfort, lead to superior cosmesis, and reduce morbidity. The aim of this study was to further explore the application value of totally laparoscopic right hemicolectomy with transcolonic natural orifice specimen extraction (NOSE) and to evaluate the short-term efficacy of transcolonic NOSE surgery for resecting specimens of ascending colon cancer. METHODS: From January 2016 to May 2017, a retrospective study was conducted in Guangxi. Propensity score matching was used to minimize the bias from nonrandomized treatment assignment. Patients were followed up through May 2020. RESULTS: Forty-nine patients underwent totally laparoscopic right hemicolectomy with transcolonic NOSE and 116 patients laparoscopic right hemicolectomy with mini-laparotomy (ML) procedures at our institution. After propensity score matching, each group included 45 patients, and all covariate imbalances were alleviated. The transcolonic NOSE group and the ML group did not differ significantly in terms of baseline clinical characteristics. The transcolonic NOSE group was associated with a shorter time to first flatus (NOSE vs ML: 1.8 ± .5 vs 3.2 ± .8, P = .032), a shorter length of hospital stay (11.3 ± 2.5 days vs 13.0 ± 3.1 days, P = .034), a shorter time to first liquid intake (2.6 ± .8 vs 3.8 ± .9, P = .068), less pain (1.8 ± .8 vs 4.2 ± .7, P = .013), less analgesia requirement (6 [13.3%] vs 21 [46.7%], P = .001), and lower C-reactive protein levels on postoperative day 1 (3.6 ± 1.7 vs 8.2 ± 2.2, P = .001) and postoperative day 3 (NOSE 2.4 ± 1.4 vs M: 4.6 ± 1.7 [P = .013]) than the ML group. The median follow-up was 28.4 months (interquartile range, 18.0-36.0). The 3-year overall survival rates were similar between the transcolonic NOSE group and the ML group. CONCLUSIONS: In total, laparoscopic right hemicolectomy with transcolonic specimen extraction appears to be safe for selected patients with ascending colon cancer as a minimally invasive surgery.


Asunto(s)
Neoplasias del Colon , Laparoscopía , China , Colectomía , Colon Ascendente , Neoplasias del Colon/cirugía , Humanos , Laparotomía , Tiempo de Internación , Puntaje de Propensión , Estudios Retrospectivos , Resultado del Tratamiento
4.
BMC Gastroenterol ; 21(1): 84, 2021 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-33622256

RESUMEN

BACKGROUND: Hepatic cavernous hemangioma is the most common type of benign liver tumor. Although ruptures and hemorrhages of hepatic hemangioma are rare complications, they are associated with high mortality. Most practitioners only pay more attention to abdominal hemorrhages caused by the rupture of hepatic hemangiomas. However, spontaneous intracapsular hemorrhages can often be neglected and poorly understood. CASE PRESENTATION: A 65-year-old man was referred to our institution with right upper quadrant pain, which had occurred suddenly and without a history of recent trauma. The blood test results were normal. Magnetic resonance imaging (MRI) of the abdomen showed a cystic mass in the right liver lobe. Considering the possibility of hepatic cystadenoma with hemorrhage, the patient underwent a right hepatic lobectomy. The pathological findings unexpectedly revealed intratumoral hemorrhage of hepatic hemangioma. The patient recovered well and was discharged eight days after surgery. CONCLUSIONS: Intracapsular hemorrhage of hepatic cavernous hemangioma is challenging to diagnose and has a high potential risk of rupture. MRI is beneficial for diagnosing subacute internal hemorrhage cases, and it is recommended to undergo surgery for patients with a definitive diagnosis.


Asunto(s)
Hemangioma Cavernoso , Hemangioma , Neoplasias Hepáticas , Anciano , Hemangioma Cavernoso/complicaciones , Hemangioma Cavernoso/diagnóstico por imagen , Hemangioma Cavernoso/cirugía , Hemorragia/etiología , Humanos , Neoplasias Hepáticas/complicaciones , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/cirugía
5.
BMC Infect Dis ; 20(1): 837, 2020 Nov 12.
Artículo en Inglés | MEDLINE | ID: mdl-33183253

RESUMEN

PURPOSES: Surgical site infection (SSI) after colorectal surgery is a frequent complication associated with the increase in morbidity, medical expenses, and mortality. To date, there is no nationwide large-scale database of SSI after colorectal surgery in China. The aim of this study was to determine the incidence of SSI after colorectal surgery in China and to further evaluate the related risk factors. METHODS: Two multicenter, prospective, cross-sectional studies covering 55 hospitals in China and enrolling adult patients undergoing colorectal surgery were conducted from May 1 to June 30 of 2018 and the same time of 2019. The demographic and perioperative characteristics were collected, and the main outcome was SSI within postoperative 30 days. Multivariable logistic regressions were conducted to predict risk factors of SSI after colorectal surgery. RESULTS: In total, 1046 patients were enrolled and SSI occurred in 74 patients (7.1%). In the multivariate analysis with adjustments, significant factors associated with SSI were the prior diagnosis of hypertension (OR, 1.903; 95% confidence interval [CI], 1.088-3.327, P = 0.025), national nosocomial infection surveillance risk index score of 2 or 3 (OR, 3.840; 95% CI, 1.926-7.658, P < 0.001), laparoscopic or robotic surgery (OR, 0.363; 95% CI, 0.200-0.659, P < 0.001), and adhesive incise drapes (OR, 0.400; 95% CI, 0.187-0.855, P = 0.018). In addition, SSI group had remarkably increased length of postoperative stays (median, 15.0 d versus 9.0d, P < 0.001), medical expenses (median, 74,620 yuan versus 57,827 yuan, P < 0.001), and the mortality (4.1% versus 0.3%, P = 0.006), compared with those of non-SSI group. CONCLUSION: This study provides the newest data of SSI after colorectal surgery in China and finds some predictors of SSI. The data presented in our study can be a tool to develop optimal preventive measures and improve surgical quality in China.


Asunto(s)
Cirugía Colorrectal/efectos adversos , Procedimientos Quirúrgicos del Sistema Digestivo/efectos adversos , Infección de la Herida Quirúrgica/epidemiología , Infección de la Herida Quirúrgica/etiología , Anciano , China/epidemiología , Infección Hospitalaria/epidemiología , Estudios Transversales , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Tiempo de Internación , Modelos Logísticos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo
6.
Jpn J Clin Oncol ; 50(1): 20-28, 2020 Jan 24.
Artículo en Inglés | MEDLINE | ID: mdl-31665375

RESUMEN

OBJECTIVES: Anastomotic leakage (AL) after anterior resection always leads to longer hospital stays, decreased quality of life and even increased mortality. Despite extensive research, no consensus on the world well-concerned surgical-related risk factors exists. We therefore conducted a meta-analysis of the available published literature to identify the effects of surgical-related risk factors for AL after anterior resection for rectal cancer, hoping to provide more information and improved guidance for clinical workers managing patients with rectal cancer who are at a high risk for AL. METHODS: In this study, the relevant articles were systematically searched from EMBASE, MEDLINE, PubMed, WangFang (Database of Chinese Ministry of Science & Technology), Chinese National Knowledge Infrastructure Database and China Biological Medicine Database. The pooled odds ratio (OR) with 95% confidence interval (95% CI) were calculated. Meta-analysis was performed using of RevMan 5.3 software. RESULTS: A total of 26 studies met the inclusion criteria and comprised 34238 cases. Analysis of these 26 studies showed that no defunctioning stoma was highly correlated with AL (pooled OR = 1.28, 95%CI: 1.05-1.57, P = 0.01, random effect), and intraoperative blood transfusion was significantly associated with AL (pooled OR = 1.64, 95%CI: 1.34-2.02, P = 0.02, random effect). However, the AL was not associated with type of anastomosis, type of surgery, technique of anastomosis, level of inferior mesenteric artery ligation, operation time and splenic flexure mobilization. CONCLUSIONS: Depend on this meta-analysis, no defunctioning stoma and intraoperative blood transfusion are the major surgical-related risk factors for AL after resection for rectal cancer. Because of the inherent limitations of the research, future prospective randomized controlled trials will need to confirm this conclusion.


Asunto(s)
Fuga Anastomótica/etiología , Neoplasias del Recto/cirugía , Reacción a la Transfusión/etiología , Anastomosis Quirúrgica/efectos adversos , Transfusión Sanguínea , China , Humanos , Ligadura , Masculino , Oportunidad Relativa , Calidad de Vida , Factores de Riesgo , Estomas Quirúrgicos/efectos adversos
7.
Med Sci Monit ; 26: e920803, 2020 Mar 16.
Artículo en Inglés | MEDLINE | ID: mdl-32173717

RESUMEN

BACKGROUND Osteosarcoma (OS) is the most common primary malignant tumor of bone. The identification of novel biomarkers is necessary for the diagnosis and treatment of osteosarcoma. MATERIAL AND METHODS We obtained 11 paired fresh-frozen OS samples and normal controls from patients between September 2015 and February 2017. We used an integration strategy that analyzes next-generation sequencing data by bioinformatics methods based on the pathogenesis of osteosarcoma. RESULTS One susceptibility lncRNA and 7 susceptibility genes regulated by the lncRNA for osteosarcoma were effectively identified, and real-time PCR and clinical index ALP data were used to test their effectiveness. CONCLUSIONS The results showed that the expression levels of the 7 genes were highly consistent in the training and test sample sets, especially between the expression value of the gene ALPL and the plasma detection value of its encoded protein ALP. In particular, both the expression of gene ALPL and the plasma detection values of protein ALP encoded by gene ALPL showed a high degree of consistency among different data types. The identified lncRNA and genes effectively classified the samples proved so that they could be used as potential biomarkers of osteosarcoma. Our strategy may also be helpful for the identification of biomarkers for other diseases.


Asunto(s)
Biomarcadores de Tumor/genética , Neoplasias Óseas/diagnóstico , Regulación Neoplásica de la Expresión Génica , Osteosarcoma/diagnóstico , Adolescente , Adulto , Fosfatasa Alcalina/sangre , Fosfatasa Alcalina/genética , Biomarcadores de Tumor/sangre , Neoplasias Óseas/sangre , Neoplasias Óseas/genética , Neoplasias Óseas/patología , Niño , Femenino , Humanos , Masculino , Osteosarcoma/sangre , Osteosarcoma/genética , Osteosarcoma/patología , ARN Largo no Codificante/metabolismo , RNA-Seq , Reacción en Cadena en Tiempo Real de la Polimerasa , Adulto Joven
8.
Gynecol Endocrinol ; 33(4): 328-331, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27911105

RESUMEN

This retrospective, cohort study examined the association between maternal pre-pregnancy body mass index (BMI), independent of glucose tolerance and adverse pregnancy outcomes in women with polycystic ovary syndrome (PCOS), for which there are few previous studies. Medical records from 2012 to 2015 at Guangzhou Women and Children's Medical Center, China were reviewed for women previously diagnosed with PCOS with normal 2-h 75-g oral glucose tolerance test (OGTT) results (n = 1249). The separate and joint effects of maternal BMI and glucose levels on pregnancy outcomes were assessed. Maternal pre-pregnancy BMI was associated with hypertensive disorders of pregnancy (HDP) (OR: 1.22, 95% CI: 1.02-1.45), preterm birth (OR: 1.49, 95% CI: 1.08-2.17), and large for gestational age (LGA) (OR: 1.69, 95% CI: 1.16-2.20). Elevated fasting glucose and maternal pre-pregnancy BMI were jointly associated with increased risks of HDP, preterm birth, and LGA. Therefore, among women with PCOS and normal glucose tolerance, maternal pre-pregnancy BMI is an independent risk factor of adverse pregnancy outcomes.


Asunto(s)
Índice de Masa Corporal , Intolerancia a la Glucosa/complicaciones , Síndrome del Ovario Poliquístico/complicaciones , Adulto , Femenino , Intolerancia a la Glucosa/sangre , Humanos , Hipertensión Inducida en el Embarazo/etiología , Recién Nacido , Síndrome del Ovario Poliquístico/sangre , Embarazo , Resultado del Embarazo , Estudios Retrospectivos , Factores de Riesgo
9.
J Clin Lab Anal ; 31(6)2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28213921

RESUMEN

BACKGROUND: The insulin-like growth factor (IGF) pathway was involved in the occurrence of spontaneous preterm birth (SPTB), but little is known regarding the relationship between genetic variations in IGF pathway and the risk of SPTB. We aimed to investigate the associations of IGF1 rs972936 and IGF1 receptor (IGF1R) rs2229765 polymorphisms with SPTB risk in a Chinese population. METHOD: A total of 114 cases of SPTB and 250 controls of term delivery were included from Guangzhou Women and Children's Medical Center, China. The odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) were calculated using multivariate logistic regression. RESULTS: We found that the GA and GA/AA genotypes of IGF1 rs972936 were associated with an increased risk of SPTB, and the adjusted ORs (95% CI) were 1.74 (1.01-3.02) and 1.75 (1.04-2.93) respectively. Women carrying GA and GA/AA genotypes of IGF1R rs2229765 had a reduced risk compared to those with the GG genotype (0.60 [0.37-0.98] and 0.64 [0.40-1.00] respectively). There were significant interactions between IGF1 rs972936 and GDM status (P for interaction=.02), as well as between IGF1R rs2229765 and pre-pregnancy BMI (P for interaction <.001) on the risk of SPTB. CONCLUSION: Our findings suggest that polymorphisms of IGF1 rs972936 and IGF1R rs2229765 were associated with the risk of SPTB in Chinese pregnant women and these effects depend on the maternal metabolic status.


Asunto(s)
Factor I del Crecimiento Similar a la Insulina/genética , Polimorfismo de Nucleótido Simple/genética , Nacimiento Prematuro/epidemiología , Nacimiento Prematuro/genética , Receptor IGF Tipo 1/genética , Adulto , Estudios de Casos y Controles , China , Femenino , Humanos , Embarazo , Resultado del Embarazo/epidemiología
10.
J Pharmacol Sci ; 131(2): 77-83, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27032906

RESUMEN

Trichosanthin (TCS), isolated from the root tuber of Trichosanthes kirilowii tubers in the Cucurbitaceae family, owns a great deal of biological and pharmacological activities including anti-virus and anti-tumor. TCS has been reported to induce cell apoptosis of a diversity of cancers, including cervical cancer, choriocarcinoma, and gastric cancer, etc. However, whether TCS would induce autophagy in gastric cancer cells was seldom investigated. In current study, human gastric cancer MKN-45 cell growth was significantly inhibited by TCS. The anti-proliferation effect of TCS was due to an increased autophagy, which was confirmed by monodansylcadervarine (MDC) staining, up-regulation of Autophagy protein 5 (Atg5), and conversion of LC3 I to LC3 II (autophagosome marker). In addition, TCS induced reactive oxygen species (ROS) in MKN-45 cells and ROS scavenger N-acetylcysteine (NAC) significantly reversed TCS-induced autophagy. Furthermore, NF-κB/p53 pathway was activated during the process of autophagy induced by TCS and the ROS generation was mediated by it in MKN-45 cells. In vivo results showed that TCS exerted significantly anti-tumor effect on MKN-45 bearing mice. Considering the clinical usage of TCS on other human diseases, these research progresses provided a new insight into cancer research and new therapeutic avenues for patients with gastric cancer.


Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Autofagia/efectos de los fármacos , FN-kappa B/metabolismo , Especies Reactivas de Oxígeno/metabolismo , Neoplasias Gástricas/metabolismo , Tricosantina/farmacología , Proteína p53 Supresora de Tumor/metabolismo , Animales , Antineoplásicos Fitogénicos/uso terapéutico , Apoptosis/efectos de los fármacos , Caspasa 3/metabolismo , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Femenino , Humanos , Ratones Endogámicos BALB C , Ratones Desnudos , Neoplasias Gástricas/tratamiento farmacológico , Tricosantina/uso terapéutico
11.
Br J Nutr ; 113(8): 1292-300, 2015 Apr 28.
Artículo en Inglés | MEDLINE | ID: mdl-25821944

RESUMEN

Few studies have explored the relationship between dietary patterns and the risk of gestational diabetes mellitus (GDM). Evidence from non-Western areas is particularly lacking. In the present study, we aimed to examine the associations between dietary patterns and the risk of GDM in a Chinese population. A total of 3063 pregnant Chinese women from an ongoing prospective cohort study were included. Data on dietary intake were collected using a FFQ at 24-27 weeks of gestation. GDM was diagnosed using a 75 g, 2 h oral glucose tolerance test. Dietary patterns were determined by principal components factor analysis. A log-binomial regression model was used to examine the associations between dietary pattern and the risk of GDM. The analysis identified four dietary patterns: vegetable pattern; protein-rich pattern; prudent pattern; sweets and seafood pattern. Multivariate analysis showed that the highest tertile of the vegetable pattern was associated with a decreased risk of GDM (relative risk (RR) 0·79, 95% CI 0·64, 0·97), compared with the lowest tertile, whereas the highest tertile of the sweets and seafood pattern was associated with an increased risk of GDM (RR 1·23, 95% CI 1·02, 1·49). No significant association was found for either the protein-rich or the prudent pattern. The protective effect of a high vegetable pattern score was more evident among women who had a family history of diabetes (P for interaction=0·022). These findings suggest that the vegetable pattern was associated with a decreased risk of GDM, while the sweets and seafood pattern was associated with an increased risk of GDM. These findings may be useful in dietary counselling during pregnancy.


Asunto(s)
Diabetes Gestacional/etiología , Dieta , Fenómenos Fisiologicos Nutricionales Maternos , Adulto , Glucemia/análisis , China , Diabetes Gestacional/diagnóstico , Femenino , Prueba de Tolerancia a la Glucosa , Humanos , Análisis Multivariante , Embarazo , Análisis de Componente Principal , Estudios Prospectivos , Análisis de Regresión , Factores de Riesgo , Encuestas y Cuestionarios
12.
Carcinogenesis ; 35(12): 2807-14, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25322871

RESUMEN

Regulatory factor X-1 (RFX-1) is a transcription factor that has been linked to negative regulation of tumor progression; however, its biological function and signaling cascades are unknown. Here, we performed several studies to elucidate the roles of RFX-1 in the regulation of SHP-1 in hepatocellular carcinoma (HCC) cells. Overexpression of RFX-1 resulted in the activation of SHP-1 and repressed colony formation of HCC cells. In addition, by a mouse xenograft model, we demonstrated that RFX-1 overexpression also inhibited the tumor growth of HCC cells in vivo, suggesting that RFX-1 is of potential interest for small-molecule-targeted therapy. We also found that SC-2001, a bipyrrole molecule, induced apoptosis in HCC cells through activating RFX-1 expression. SC-2001 induced RFX-1 translocation from the cytosol to nucleus, bound to the SHP-1 promoter, and activated SHP-1 transcription. In a xenograft model, knockdown of RFX-1 reversed the antitumor effect of SC-2001. Notably, SC-2001 is much more potent than sorafenib, a clinically approved drug for HCC, in in vitro and in vivo assays. Our study confirmed that RFX-1 acts as a tumor suppressor in HCC and might be a new target for HCC therapy. The findings of this study also provide a new lead compound for targeted therapy via the activation of the RFX-1/SHP-1 pathway.


Asunto(s)
Carcinoma Hepatocelular/metabolismo , Proteínas de Unión al ADN/metabolismo , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Neoplasias Hepáticas/metabolismo , Proteína Tirosina Fosfatasa no Receptora Tipo 6/genética , Factor de Transcripción STAT3/antagonistas & inhibidores , Factores de Transcripción/metabolismo , Animales , Antineoplásicos/farmacología , Western Blotting , Carcinoma Hepatocelular/tratamiento farmacológico , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/patología , Inmunoprecipitación de Cromatina , Proteínas de Unión al ADN/antagonistas & inhibidores , Proteínas de Unión al ADN/genética , Citometría de Flujo , Humanos , Técnicas para Inmunoenzimas , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/patología , Luciferasas/metabolismo , Masculino , Ratones , Ratones Desnudos , Niacinamida/análogos & derivados , Niacinamida/farmacología , Compuestos de Fenilurea/farmacología , Regiones Promotoras Genéticas/genética , Proteína Tirosina Fosfatasa no Receptora Tipo 6/metabolismo , Pirroles/farmacología , ARN Mensajero/genética , ARN Interferente Pequeño/genética , Reacción en Cadena en Tiempo Real de la Polimerasa , Factores de Transcripción del Factor Regulador X , Factor Regulador X1 , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Factor de Transcripción STAT3/genética , Factor de Transcripción STAT3/metabolismo , Transducción de Señal/efectos de los fármacos , Sorafenib , Factores de Transcripción/antagonistas & inhibidores , Factores de Transcripción/genética , Células Tumorales Cultivadas , Ensayos Antitumor por Modelo de Xenoinjerto
13.
Nucleic Acids Res ; 40(17): 8484-98, 2012 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-22730302

RESUMEN

Cytoplasmic polyadenylation element-binding protein (CPEB)3 is a nucleocytoplasm-shuttling RNA-binding protein and predominantly resides in the cytoplasm where it represses target RNA translation. When translocated into the nucleus, CPEB3 binds to Stat5b and downregulates Stat5b-dependent transcription. In neurons, the activation of N-methyl-d-aspartate receptors (NMDARs) accumulates CPEB3 in the nucleus and redistributes CPEB3 in the nucleocytoplasmic compartments to control gene expression. Nonetheless, it is unclear which karyopherin drives the nuclear import of CPEB3 and which transport direction is most affected by NMDA stimulation to increase the nuclear pool of CPEB3. Here, we have identified that the karyopherins, IPO5 and CRM1, facilitate CPEB3 translocation by binding to RRM1 and a leucine-containing motif of CPEB3, respectively. NMDAR signaling increases RanBP1 expression and reduces the level of cytoplasmic GTP-bound Ran. These changes enhance CPEB3-IPO5 interaction, which consequently accelerates the nuclear import of CPEB3. This study uncovers a novel NMDA-regulated import pathway to facilitate the nuclear translocation of CPEB3.


Asunto(s)
Núcleo Celular/metabolismo , Proteínas de Unión al ARN/metabolismo , Receptores de N-Metil-D-Aspartato/metabolismo , beta Carioferinas/metabolismo , Transporte Activo de Núcleo Celular , Animales , Células Cultivadas , Células HeLa , Humanos , Ratones , Neuronas/metabolismo , Señales de Exportación Nuclear , Señales de Localización Nuclear , Dominios y Motivos de Interacción de Proteínas , ARN Interferente Pequeño , Proteínas de Unión al ARN/química , Proteínas de Unión al ARN/genética , Ratas , Ribonucleósido Difosfato Reductasa , Transducción de Señal , Proteínas Supresoras de Tumor/metabolismo , beta Carioferinas/antagonistas & inhibidores , Proteína de Unión al GTP ran/metabolismo
14.
Int J Surg ; 110(1): 119-129, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-37800568

RESUMEN

OBJECTIVE: This study aimed to construct and validate a clinical prediction model for surgical site infection (SSI) risk 30 days after gastrointestinal surgery. MATERIALS AND METHODS: This multicentre study involving 57 units conducted a 30-day postoperative follow-up of 17 353 patients who underwent gastrointestinal surgery at the unit from 1 March 2021 to 28 February 2022. The authors collected a series of hospitalisation data, including demographic data, preoperative preparation, intraoperative procedures and postoperative care. The main outcome variable was SSI, defined according to the Centres for Disease Control and Prevention guidelines. This study used the least absolute shrinkage and selection operator (LASSO) algorithm to screen predictive variables and construct a prediction model. The receiver operating characteristic curve, calibration and clinical decision curves were used to evaluate the prediction performance of the prediction model. RESULTS: Overall, 17 353 patients were included in this study, and the incidence of SSI was 1.6%. The univariate analysis combined with LASSO analysis showed that 20 variables, namely, chronic liver disease, chronic kidney disease, steroid use, smoking history, C-reactive protein, blood urea nitrogen, creatinine, albumin, blood glucose, bowel preparation, surgical antibiotic prophylaxis, appendix surgery, colon surgery, approach, incision type, colostomy/ileostomy at the start of the surgery, colostomy/ileostomy at the end of the surgery, length of incision, surgical duration and blood loss were identified as predictors of SSI occurrence ( P <0.05). The area under the curve values of the model in the train and test groups were 0.7778 and 0.7868, respectively. The calibration curve and Hosmer-Lemeshow test results demonstrated that the model-predicted and actual risks were in good agreement, and the model forecast accuracy was high. CONCLUSIONS: The risk assessment system constructed in this study has good differentiation, calibration and clinical benefits and can be used as a reference tool for predicting SSI risk in patients.


Asunto(s)
Procedimientos Quirúrgicos del Sistema Digestivo , Infección de la Herida Quirúrgica , Humanos , Infección de la Herida Quirúrgica/epidemiología , Infección de la Herida Quirúrgica/etiología , Infección de la Herida Quirúrgica/prevención & control , Procedimientos Quirúrgicos del Sistema Digestivo/efectos adversos , Factores de Riesgo , Modelos Estadísticos , Estudios Prospectivos , Pronóstico , Estudios Retrospectivos
15.
World J Clin Cases ; 12(20): 4384-4390, 2024 Jul 16.
Artículo en Inglés | MEDLINE | ID: mdl-39015899

RESUMEN

BACKGROUND: Enterocutaneous fistula (ECF) is an abnormal connection between the gastrointestinal tract and the skin. ECF can lead to massive body fluid loss, hypercatabolism, and malnutrition. Therefore, nutritional support plays a crucial role in managing ECFs and promoting the healing of fistulas. For nutritional support, enteral nutrition (EN) is the preferred method when gastrointestinal function is recovering. Currently, various EN approaches have been applied for different anatomical positions of the ECF. However, the effectiveness of administering EN support for treating lower ECFs still needs further exploration and improvement. CASE SUMMARY: We present the case of a 46-year-old male who underwent gastrointestinal stromal tumour resection. Six days after the surgery, the patient presented with fever, fatigue, severe upper abdominal pain, and septic shock. Subsequently, lower ECFs were diagnosed through laboratory and imaging examinations. In addition to symptomatic treatment for homeostasis, total parenteral nutrition support was administered in the first 72 h due to dysfunction of the intestine. After that, we gradually provided EN support through the intestinal obstruction catheter in consideration of the specific anatomic position of the fistula instead of using the nasal jejunal tube. Ultimately, the patient could receive optimal EN support via the catheter, and no complications were found during the treatment. CONCLUSION: Nutritional support is a crucial element in ECF management, and intestinal obstruction catheters could be used for early EN administration.

16.
Heliyon ; 10(2): e24394, 2024 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-38312638

RESUMEN

SIVA-1 has been shown to affect apoptotic processes in various different cell lines, and SIVA-1 significantly contributes to the decreased responsiveness of cancer cells to some chemotherapy agents. However, whether SIVA-1 has potential application in gastric cancer remains unknown. Therefore, the objective of this investigation was to clarify the distinct function of SIVA-1 in chemotherapeutic drug resistance within a living murine model with gastric malignancy, and initially elucidate the underlying mechanisms. In an established multidrug-resistant gastric cancer xenograft mouse model, lentivirus, named Lv-SIVA-1, was injected into xenograft tumors, and increased the mRNA and protein expression of endogenous SIVA-1 in tumors. Immunohistochemical assays of xenograft tumor showed that SIVA-1 was significantly upregulated, and the protein expression levels of SIVA-1 were highly increased, as detected by Western blotting. In addition, we detected the role of SIVA-1 in cell proliferation and cell apoptosis in gastric cancer cells by TUNEL and found that SIVA-1 decreased tumor cell apoptosis and promoted tumor growth in vivo. Using a TMT assay between tumor tissues of experimental and control groups, differentially expressed proteins were examined and three potential biomarkers of multidrug resistance (ARF, MDM2, and p53) were screened. We further investigated the molecular mechanism by which SIVA-1 played an efficient role against chemotherapies and found that overexpressed SIVA-1 leads to increased ARF and MDM2 expression and suppressed expression of p53 in tumor tissue. In conclusion, SIVA-1 plays a significant role in the multidrug resistance of gastric tumors. In addition, overexpressed SIVA-1 positively regulates cell proliferation, adjusts cycle progression, and reduces the response to drug treatment for gastric cancer in an ARF/MDM2/p53-dependent manner. This novel research provides a basis for chemical management of gastric cancer through regulation of SIVA-1 expression.

17.
Int J Urol ; 20(12): 1178-83, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23573867

RESUMEN

OBJECTIVES: To evaluate biochemical non-evidence of disease and adverse events of salvage intensity-modulated radiotherapy using an endorectal balloon for prostate cancer patients after radical prostatectomy. METHODS: Data of 107 patients (median age 65 years) with persistent (>0.1 ng/mL) or rising prostate-specific antigen after radical prostatectomy were retrospectively analyzed. The mean dose to clinical target volume was 70 Gy in 32 fractions (the equivalent dose in 2 Gy fraction is 73.2 Gy based on α:ß = 2). Biochemical non-evidence of disease and predictive factors were assessed. Genitourinary toxicity and gastrointestinal toxicity were also evaluated using the Radiation Therapy Oncology Group toxicity criteria. RESULTS: The median follow up was 37 months (range 6-126 months). A total of 48 patients developed biochemical recurrence. The 3- and 5-year biochemical non-evidence of disease rates of all patients were 52.6% and 48.8%, respectively. The Gleason score (≥4 + 3, ≤3 + 4) and pre-intensity-modulated radiotherapy prostate-specific antigen level (≥0.5 ng/mL, <0.5 ng/mL) were significant predictive factors for biochemical non-evidence of disease in univariate analysis. In multivariate analysis, only the Gleason score was detected as a significant variable. The highest late genitourinary toxicities were grade 2 in 13% and grade 3 in 6% of patients. The highest late gastrointestinal toxicities were grade 2 in 6% and grade 3 in 3% of patients. CONCLUSION: Despite a relatively high radiation dose, intensity-modulated radiotherapy with an endorectal balloon can be delivered with acceptable toxicity and efficacy for patients developing biochemical recurrence after radical prostatectomy.


Asunto(s)
Prostatectomía/métodos , Neoplasias de la Próstata/radioterapia , Neoplasias de la Próstata/cirugía , Radioterapia de Intensidad Modulada/métodos , Terapia Recuperativa/métodos , Anciano , Supervivencia sin Enfermedad , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Pronóstico , Prostatectomía/mortalidad , Neoplasias de la Próstata/mortalidad , Dosificación Radioterapéutica , Recto , Estudios Retrospectivos , Terapia Recuperativa/mortalidad , Resultado del Tratamiento
18.
Zhen Ci Yan Jiu ; 48(1): 95-101, 2023 Jan 25.
Artículo en Zh | MEDLINE | ID: mdl-36734505

RESUMEN

OBJECTIVE: To evaluate the efficacy and safety of moxibustion at Baihui (CV20) combined with acupuncture in treatment of cervical vertigo. METHODS: From the databases, such as CNKI, VIP, WanFang, CBM, PubMed, Cochrane Library and Embase, the studies of randomized controlled trials (RCTs) on moxibustion at CV20 combined with acupuncture for cervical vertigo were searched from inception to September 15th, 2021. The Cochrane risk of bias assessment tool was utilized to evaluate the quality of the included literature. Using RevMan5.3, Stata12.0 and TSA0.9.5.0 10 Beta software, the Meta-analysis and trial sequential analysis (TSA) were performed. RESULTS: Seventeen RCTs with 1 232 patients were included. Meta-analysis showed that in the trial group (moxibustion at CV20 combined with acupuncture), the total effective rate (RR=1.17, 95%CI[1.12, 1.22], P<0.000 1), the curative and remarkably-effective rate (RR=1.28,95%CI[1.20,1.36],P<0.000 1) and the score of cervical vertigo (WMD=2.88, 95%CI[1.87, 3.89], P<0.000 1) were all better when compared with the control group (simple acupuncture or electroacupuncture group). The results of trial sequential analysis indicated that for the cumulative Z-score of each RCT, the Z-curve crossed the conventional test boundary and TSA boundary, which further confirmed the clinical efficacy of moxibustion at CV20 combined with acupuncture on cervical vertigo. CONCLUSION: The clinical efficacy of moxibustion at CV20 combined with acupuncture is determined in treatment of cervical vertigo.


Asunto(s)
Terapia por Acupuntura , Electroacupuntura , Moxibustión , Humanos , Terapia por Acupuntura/métodos , Resultado del Tratamiento , Vértigo/terapia
19.
Surg Open Sci ; 16: 121-126, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37876666

RESUMEN

Duodenal stump fistula (DSF) is a serious complication of radical gastrectomy for gastric cancer. Herein, we illustrated an innovative choice for treating duodenal stump fistulas by placing a modified sump drainage through trocar puncture into the DSF-related abscess (DSF-abscess) cavity. We retrospectively analyzed 974 consecutive patients who underwent gastrectomy for gastric cancer between 2011 and 2021. Of these patients, 34 who developed postoperative duodenal stump fistulas postoperatively were enrolled into our study, and their clinical data were retrospectively assessed. From January 2011 to December 2017, 15 patients received conventional treatments (percutaneous catheter drainage, PCD group) known as the traditional percutaneous method, and 19 patients from January 2018 to December 2021 received new treatments (Troca's SD group) consisting of conventional therapies and placement of a modified sump drainage through trocar puncture into DSF-abscess cavity. The demographics, clinical characteristics and treatment outcomes were compared between two groups. Compared with the PCD group, the rates of postoperative complications, duodenostomy creation, subsequent surgery, fistula healing rates of the DSF, and length of postoperative hospital stay were significantly decreased in the Troca SD group. However, there was no significant difference in the abscess recurrence rate and mortality rates. Trocar puncture with a modified sump drainage is an safe, effective, and technically feasible treatment for duodenal stump fistula after radical gastrectomy for gastric cancer. This novel technique should be further investigated using large-scale RCT research.

20.
Cytotherapy ; 14(5): 563-9, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22277013

RESUMEN

BACKGROUND AIMS: We investigated bone marrow stromal cell (BMSC) transplantation combined with angiotensin-converting enzyme inhibitor (ACEI) treatment in acute myocardial infarction (AMI) and the role of insulin-like growth factor-1 (IGF-1). METHODS: AMI models were established in Sprague-Dawley rats by ligation of the left anterior descending coronary artery and grouped into blank control (BC), ACEI treatment (ACEI), BMSC transplantation (BMSC) and BMSC transplantation plus ACEI (combined). Perindopril (2.5 mg/kg) was administered by gavage to ACEI and combined groups from the day after AMI. BMSC (2 × 10(8)) were injected into the border of the MI area a week later in the BMSC and combined groups. RESULTS: After 4 weeks, hemodynamics in the BMSC and combined groups were significantly improved (P < 0.05 versus BC), with the greatest improvement in the combined group (P < 0.05). In addition, an increased number of BMSC survived in the combined group (P < 0.05 versus BMSC). A proportion of BMSC was positive for troponin T, as detected by immunofluorescence. The number of apoptotic cardiomyocytes was decreased in the BMSC and ACEI groups, and even further in the combined group (P < 0.05). IGF-1 expression was up-regulated in the BMSC and combined groups (P < 0.05 versus BC), but not in the ACEI group. B cell lymphoma-2 (Bcl-2) expression was up-regulated in the ACEI, BMSC and combined groups, with the highest expression in the combined group (P < 0.05). CONCLUSIONS: Our results show that BMSC engrafted in AMI can survive well and secrete IGF-1 and preserve cardiac function significantly. These data suggest that BMSC transplantation inhibits apoptosis of cardiomyocytes by up-regulation of Bcl-2 expression in the myocardium, and this effect might be sensitized by ACEI.


Asunto(s)
Trasplante de Médula Ósea , Tratamiento Basado en Trasplante de Células y Tejidos , Factor I del Crecimiento Similar a la Insulina/metabolismo , Trasplante de Células Madre Mesenquimatosas , Infarto del Miocardio/terapia , Inhibidores de la Enzima Convertidora de Angiotensina/administración & dosificación , Animales , Apoptosis/efectos de los fármacos , Vasos Coronarios/cirugía , Expresión Génica/efectos de los fármacos , Humanos , Miocitos Cardíacos/citología , Perindopril/administración & dosificación , Proteínas Proto-Oncogénicas c-bcl-2/metabolismo , Ratas , Ratas Sprague-Dawley
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA