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1.
World J Gastroenterol ; 28(30): 4133-4151, 2022 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-36157113

RESUMO

BACKGROUND: Acute kidney injury (AKI) is a common and severe complication in patients with cirrhosis, and is associated with poor prognosis. Therefore, identifying cirrhotic patients with AKI who are at high risk of mortality is very important and may be helpful for providing timely medical interventions to improve the prognosis of these patients. However, studies focused on investigating the risk factors for the mortality of cirrhotic patients with AKI were scarce. AIM: To identify risk factors for mortality and establish a nomogram for predicting the prognosis of these patients. METHODS: Two hundred fifty consecutive patients with cirrhosis and AKI were recruited and randomly divided into training cohort (n = 173) and validation cohort (n = 77). In the training cohort, potential risk factors for death were identified by performing a Cox regression analysis, and a nomogram was established. The predictive performance of the nomogram was internally and externally validated by calculating the area under the receiver operating characteristic curve (AUROC), constructing a calibration curve and performing decision curve analysis. RESULTS: The serum sodium level, international normalized ratio, peak serum creatinine level > 1.5 mg/dL, the presence of hepatic encephalopathy and diabetes were potential risk factors for mortality of cirrhotic patients with AKI in the training dataset. A prognostic nomogram incorporating these variables was established for predicting the overall survival of these patients. Compared with Child-Turcotte-Pugh, the model for end-stage liver disease (MELD) and the MELD-Na scores, the nomogram in predicting 90- and 180-d mortality exhibited better discriminatory power with AUROCs of 0.792 and 0.801 for the training dataset and 0.817 and 0.862 for the validation dataset, respectively. With a nomogram score of 98, patients were divided into low- and high-risk groups, and high-risk patients had a higher mortality rate. CONCLUSION: A prognostic nomogram displayed good performance for predicting the overall survival of cirrhotic patients with AKI, and will assist clinicians in evaluating the prognosis of these patients.


Assuntos
Injúria Renal Aguda , Doença Hepática Terminal , Injúria Renal Aguda/diagnóstico , Injúria Renal Aguda/etiologia , Creatinina , Doença Hepática Terminal/complicações , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Nomogramas , Prognóstico , Estudos Retrospectivos , Índice de Gravidade de Doença , Sódio
2.
Sci Rep ; 12(1): 15676, 2022 09 20.
Artigo em Inglês | MEDLINE | ID: mdl-36127436

RESUMO

Metastasis is crucial for the prognosis of hepatocellular carcinoma (HCC). Distinguishing the potential risk factors for distant metastasis in small HCC (diameter ≤ 5 cm) is of great significance for improving the prognosis. HCC patients in the Surveillance, Epidemiology and End Results (SEER) registry with tumors ≤ 5 cm in diameter between January 2010 and December 2015 were retrieved. Demographic and clinicopathological metrics were extracted, including age, sex, race, marital status, tumor size, histological grade, T stage, N stage, M stage, alpha-fetoprotein (AFP), and liver fibrosis score. Univariate and multivariate logistic regression analyses were used to identify independent risk factors correlated with extrahepatic metastasis in small HCC. Propensity score matching (PSM) analysis was performed to balance the confounding factors in baseline characteristics. A total of 4176 eligible patients were divided into a non-metastasis group (n = 4033) and a metastasis group (n = 143) based on metastasis status. In multivariate analysis, larger tumor size, poor histological differentiation, regional lymph node metastasis, and elevated serum AFP levels were identified as independent risk factors for distant metastasis (P < 0.05), while age, sex, race, marital status, and liver fibrosis score were not associated with extrahepatic metastasis. After propensity score analysis, the AFP level was no longer associated with metastatic risk. The present study provided no evidence for a correlation between the clinical threshold of AFP and metastasis in small hepatocellular carcinoma.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Carcinoma Hepatocelular/patologia , Humanos , Cirrose Hepática , Neoplasias Hepáticas/patologia , Prognóstico , alfa-Fetoproteínas/análise
4.
J Dig Dis ; 21(3): 170-178, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32031737

RESUMO

OBJECTIVES: To investigate whether second-look endoscopy (SLE)-guided therapy could be used to prevent post-endoscopic variceal ligation (EVL) early bleeding. METHODS: Consecutive cirrhotic patients with large esophageal varices (EV) receiving successful EVL for acute variceal bleeding (AVB) or secondary prophylaxis were enrolled. The patients were randomized into a SLE group and a non-SLE group (NSLE) 10 days after EVL. Additional endoscopic interventions as well as proton pump inhibitors and octreotide administration were applied based on the SLE findings. The post-EVL early rebleeding and mortality rates were compared between the two groups. RESULTS: A total of 252 patients were included in the final analysis. Post-EVL early rebleeding (13.5% vs 4.8%, P = 0.016) and bleeding-caused mortality (4.8% vs 0%, P = 0.013) were more frequently observed in the NSLE group than in the SLE group. However, post-EVL early rebleeding and mortality rates were reduced by SLE in patients receiving EVL for AVB only but not in those receiving secondary prophylaxis. Patients with Child-Pugh classification B to C at randomization (hazard ratio [HR] 8.77, P = 0.034), AVB at index EVL (HR 3.62, P = 0.003), discontinuation of non-selective ß-blocker after randomization (HR 4.68, P = 0.001) and non-SLE (HR 2.63, P = 0.046) were more likely to have post-EVL early rebleeding. No serious adverse events occurred during SLE. CONCLUSION: SLE-guided therapy reduces post-EVL early rebleeding and mortality rates in cirrhotic patients with large EV receiving EVL for AVB.


Assuntos
Sedação Consciente , Endoscopia/mortalidade , Hemorragia Gastrointestinal/cirurgia , Hemorragia Pós-Operatória/cirurgia , Cirurgia de Second-Look/mortalidade , Doença Aguda , Adulto , Endoscopia/métodos , Varizes Esofágicas e Gástricas/cirurgia , Feminino , Hemorragia Gastrointestinal/mortalidade , Hemorragia Gastrointestinal/prevenção & controle , Humanos , Ligadura/efeitos adversos , Cirrose Hepática/complicações , Masculino , Pessoa de Meia-Idade , Hemorragia Pós-Operatória/mortalidade , Hemorragia Pós-Operatória/prevenção & controle , Recidiva , Cirurgia de Second-Look/métodos , Prevenção Secundária , Índice de Gravidade de Doença , Resultado do Tratamento
5.
Clin Transl Gastroenterol ; 11(12): e00285, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33512812

RESUMO

INTRODUCTION: Compared with endoscopic variceal ligation (EVL), cap-assisted endoscopic sclerotherapy (CAES) improves efficacy in the treatment of small esophageal varices (EVs) but has not been evaluated in the management of medium EVs. The aim of this study was to compare CAES with EVL in the long-term management of patients exhibiting cirrhosis with medium EVs and a history of esophageal variceal bleeding (EVB), with respect to variceal eradication and recurrence, adverse events, rebleeding, and survival. METHODS: Cirrhotic patients with medium EVs and a history of EVB were divided randomly into EVL and CAES groups. EVL or CAES was repeated each month until variceal eradication. Lauromacrogol was used as a sclerosant. Patients were followed up until 1 year after eradication. RESULTS: In total, 240 patients (age: 51.1 ± 10.0 years; men: 70.8%) were included and randomized to the EVL and CAES groups. The recurrence rate of EVs was much lower in the CAES group than in the EVL group (13.0% vs 30.7%, P = 0.001). The predictors for variceal recurrence were eradication by EVL (hazard ratio [HR]: 2.37, P = 0.04), achievement of complete eradication (HR: 0.27, P < 0.001), and nonselective ß-blocker response (HR: 0.32, P = 0.003). There was no significant difference in the rates of eradication, rebleeding, requirement for alternative therapy, and mortality or the incidence of complications between groups. DISCUSSION: CAES reduces the recurrence rate of EVs with comparable safety to that of EVL in the long-term management of patients presenting cirrhosis with medium EVs and a history of EVB.


Assuntos
Varizes Esofágicas e Gástricas/terapia , Esofagoscopia/métodos , Ligadura/métodos , Complicações Pós-Operatórias/epidemiologia , Escleroterapia/métodos , Adulto , Varizes Esofágicas e Gástricas/diagnóstico , Varizes Esofágicas e Gástricas/etiologia , Esofagoscopia/efeitos adversos , Humanos , Incidência , Ligadura/efeitos adversos , Cirrose Hepática/complicações , Cirrose Hepática/terapia , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Estudos Prospectivos , Recidiva , Escleroterapia/efeitos adversos , Prevenção Secundária , Índice de Gravidade de Doença , Resultado do Tratamento
6.
Immunol Cell Biol ; 97(2): 165-177, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30242904

RESUMO

Interleukin (IL)-25 is a cytokine that has previously been shown to have a protective role against nonalcoholic fatty liver disease (NAFLD), which is associated with the induction of M2 macrophage differentiation. However, the direct relationships between IL-25 expression regulation, M2 induction and NAFLD remain unknown. In this study, we demonstrate that IL-25 promotes hepatic macrophage differentiation into M2a macrophages both in vivo and in vitro via the IL-13/STAT6 pathway. M2 macrophages that were differentiated in vitro were able to ameliorate high-fat diet HFD-induced hepatic steatosis. Furthermore, we found that IL-25 treatment, both in vitro and in vivo, promotes direct binding of STAT6 to the IL-25 gene promoter region. This binding of STAT6 in response to IL-25 treatment also resulted in the increase of IL-25 expression in hepatocytes. Together, these findings identify IL-25 as a protective factor against HFD-induced hepatic steatosis by inducing an increase of IL-25 expression in hepatocytes and through promotion of M2a macrophage production.


Assuntos
Fígado Gorduroso/prevenção & controle , Interleucina-17/metabolismo , Ativação de Macrófagos/efeitos dos fármacos , Fator de Transcrição STAT6/genética , Fator de Transcrição STAT6/metabolismo , Transdução de Sinais/fisiologia , Animais , Dieta Hiperlipídica , Fígado Gorduroso/etiologia , Fígado Gorduroso/metabolismo , Hepatócitos/metabolismo , Interleucina-13/metabolismo , Interleucina-17/farmacologia , Fígado/metabolismo , Camundongos , Camundongos Endogâmicos C57BL , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/metabolismo , Proteínas Recombinantes/farmacologia
7.
World J Clin Cases ; 6(16): 1217-1222, 2018 Dec 26.
Artigo em Inglês | MEDLINE | ID: mdl-30613686

RESUMO

BACKGROUND: Duodenal varices are a lesser-known complication with non-cirrhotic portal hypertension. We report a circuitous route from missed diagnosis of duodenal varices to correction. An extremely rare case of duodenal variceal bleeding secondary to idiopathic portal hypertension (IPH) is expounded in this study, which was controlled by transjugular intra-hepatic porto-systemic shunt (TIPS) plus embolization. CASE SUMMARY: A 46-year-old woman with anemia for two years was frequently admitted to the local hospital. Upon examination, anemia was attributed to gastrointestinal tract bleeding, which resulted from duodenal variceal bleeding detected by repeated esophagogastroduodenoscopy. At the end of a complete workup, IPH leading to duodenal varices was diagnosed. Portal venography revealed that the remarked duodenal varices originated from the proximal superior mesenteric vein. TIPS plus embolization with coils and Histoacryl was performed to obliterate the rupture of duodenal varices. The anemia resolved, and the duodenal varices completely vanished by 2 mo after the initial operation. CONCLUSION: TIPS plus embolization may be more appropriate to treat the bleeding of large duodenal varices.

8.
World J Gastroenterol ; 23(34): 6321-6329, 2017 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-28974899

RESUMO

AIM: To explore the natural history of covert hepatic encephalopathy (CHE) in absence of medication intervention. METHODS: Consecutive outpatient cirrhotic patients in a Chinese tertiary care hospital were enrolled and evaluated for CHE diagnosis. They were followed up for a mean of 11.2 ± 1.3 mo. Time to the first cirrhosis-related complications requiring hospitalization, including overt HE (OHE), resolution of CHE and death/transplantation, were compared between CHE and no-CHE patients. Predictors for complication(s) and death/transplantation were also analyzed. RESULTS: A total of 366 patients (age: 47.2 ± 8.6 years, male: 73.0%) were enrolled. CHE was identified in 131 patients (35.8%). CHE patients had higher rates of death and incidence of complications requiring hospitalization, including OHE, compared to unimpaired patients. Moreover, 17.6% of CHE patients developed OHE, 42.0% suffered persistent CHE, and 19.8% of CHE spontaneously resolved. In CHE patients, serum albumin < 30 g/L (HR = 5.22, P = 0.03) was the sole predictor for developing OHE, and blood creatinine > 133 µmol/L (HR = 4.75, P = 0.036) predicted mortality. Child-Pugh B/C (HR = 0.084, P < 0.001) and OHE history (HR = 0.15, P = 0.014) were predictors of spontaneous resolution of CHE. CONCLUSION: CHE exacerbates, persists or resolves without medication intervention in clinically stable cirrhosis. Triage of patients based on these predictors will allow for more cost-effect management of CHE.


Assuntos
Encefalopatia Hepática/diagnóstico , Hospitalização/estatística & dados numéricos , Cirrose Hepática/complicações , Transplante de Fígado/estatística & dados numéricos , Adulto , Análise Custo-Benefício , Feminino , Seguimentos , Encefalopatia Hepática/economia , Encefalopatia Hepática/mortalidade , Encefalopatia Hepática/terapia , Humanos , Incidência , Cirrose Hepática/economia , Cirrose Hepática/mortalidade , Cirrose Hepática/terapia , Masculino , Pessoa de Meia-Idade , Qualidade de Vida , Remissão Espontânea , Triagem
9.
Exp Ther Med ; 14(4): 3577-3582, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29042951

RESUMO

Activation of quiescent hepatic stellate cells (q-HSCs) and their transformation to myofibroblasts (MFBs) is a key event in liver fibrosis. Hedgehog (Hh) signaling stimulates q-HSCs to differentiate into MFBs, and NADPH oxidase (NOX) may be involved in regulating Hh signaling. The author's preliminary study demonstrated that ursolic acid (UA) selectively induces apoptosis in activated HSCs and inhibits their proliferation in vitro via negative regulation of NOX activity and expression. However, the effect of UA on q-HSCs remains to be elucidated. The present study aimed to investigate the effect of UA on q-HSC activation and HSC transformation and to observe alterations in the NOX and Hh signaling pathways during q-HSC activation. q-HSC were isolated from adult male Sprague-Dawley rats. Following culture for 3 days, the cells were treated with or without transforming growth factor-ß1 (TGF-ß1; 5 µg/l); intervention groups were pretreated with UA (40 µM) or diphenyleneiodonium chloride (DPI; 10 µM) for 30 min prior to addition of TGF-ß1. mRNA and protein expression of NOX and Hh signaling components and markers of q-HSC activation were examined by western blotting and reverse transcription-polymerase chain reaction. TGF-ß1 induced activation of q-HSCs, with increased expression of α-smooth muscle actin (α-SMA) and type I collagen. In addition, expression of NOX subunits (gp91phox, p67phox, p22phox, and Rac1) and Hh signaling components, including sonic Hh, sterol-4-alpha-methyl oxidase, and Gli family zinc finger 2, were upregulated in activated HSCs. Pretreatment of q-HSCs with UA or DPI prior to TGF-ß1 significantly downregulated expression of NOX subunits and Hh signaling components and additionally inhibited expression of α-SMA and type I collagen, thereby preventing transformation to MFBs. UA inhibited TGF-ß1-induced activation of q-HSCs and their transformation by inhibiting expression of NOX subunits and the downstream Hh pathway.

10.
Infect Immun ; 84(12): 3328-3337, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27620722

RESUMO

Infection with parasitic nematodes, especially gastrointestinal geohelminths, affects hundreds of millions of people worldwide and thus poses a major risk to global health. The host mechanism of defense against enteric nematode infection remains to be fully understood, but it involves a polarized type 2 immunity leading to alterations in intestinal function that facilitate worm expulsion. We investigated the role of interleukin-25 (IL-25) in host protection against Heligmosomoides polygyrus bakeri infection in mice. Our results showed that Il25 and its receptor subunit, Il17rb, were upregulated during a primary infection and a secondary challenge infection with H. polygyrus bakeri Genetic deletion of IL-25 (IL-25-/-) led to an attenuated type 2 cytokine response and increased worm fecundity in mice with a primary H. polygyrus bakeri infection. In addition, the full spectrum of the host memory response against a secondary infection with H. polygyrus bakeri was severely impaired in IL-25-/- mice, including delayed type 2 cytokine responses, an attenuated functional response of the intestinal smooth muscle and epithelium, diminished intestinal smooth muscle hypertrophy/hyperplasia, and impaired worm expulsion. Furthermore, exogenous administration of IL-25 restored the host protective memory response against H. polygyrus bakeri infection in IL-25-/- mice. These data demonstrate that IL-25 is critical for host protective immunity against H. polygyrus bakeri infection, highlighting its potential application as a therapeutic agent against parasitic nematode infection worldwide.


Assuntos
Memória Imunológica/fisiologia , Interleucinas/metabolismo , Nematospiroides dubius/imunologia , Infecções por Strongylida/veterinária , Células Th2/fisiologia , Animais , Arginase/genética , Arginase/metabolismo , Regulação da Expressão Gênica/imunologia , Hormônios Ectópicos/genética , Hormônios Ectópicos/metabolismo , Peptídeos e Proteínas de Sinalização Intercelular , Interleucinas/genética , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Receptores de Interleucina-17/genética , Receptores de Interleucina-17/metabolismo , Infecções por Strongylida/imunologia , Regulação para Cima
11.
Endosc Ultrasound ; 5(4): 218-24, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27503152

RESUMO

Endoscopic ultrasound (EUS) has significantly improved our understanding of the complex vascular structural changes in patients with portal hypertension. At present, EUS is a useful diagnostic tool for the evaluation of esophagogastric varices (EGVs) and guidance of endoscopic therapy. Several studies have employed this new technique for the diagnosis and management of esophageal and gastric varices, respectively. In the present review, we have summarized the current status of EUS for the diagnosis and management of EGVs and clarified the clinical feasibility of this procedure. New indications for EUS can be developed in the future after adequate validation.

12.
Int J Med Sci ; 13(4): 298-303, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27076787

RESUMO

Helicobacter pylori (H. pylori) infection is the most common chronic bacterial infection in the world and the etiological agent for most gastric cancer (GC). Interleukin-1ß (IL-1ß) is a potent proinflammatory cytokine, and its deregulation is closely associated with the tumorigenesis of several cancers. Recent studies have revealed that the IL-1ß-31 and -511T alleles are closely associated with gastric carcinogenesis due to their roles in the induction of gastric precancerous lesions and hypochlorhydria. Furthermore, H. pylori infection has a synergistic effect on the development of GC with IL-1ß gene polymorphisms, and the highest prevalence of severe gastric abnormalities are found in patients with both host and bacterial high-risk genotypes (cagA(+)/vacAs1(+)/IL-1ß-511T). Therefore, these recent advances demonstrate that H. pylori synergistic with IL-1ß gene polymorphisms contribute to the gastric carcinogenesis by their involvement in precancerous gastric lesions and low gastric acid secretion.


Assuntos
Carcinogênese/genética , Infecções por Helicobacter/genética , Interleucina-1beta/genética , Neoplasias Gástricas/genética , Alelos , Mucosa Gástrica/microbiologia , Mucosa Gástrica/patologia , Genótipo , Infecções por Helicobacter/microbiologia , Infecções por Helicobacter/patologia , Helicobacter pylori/genética , Helicobacter pylori/patogenicidade , Humanos , Interleucina-1beta/biossíntese , Polimorfismo Genético , Neoplasias Gástricas/microbiologia , Neoplasias Gástricas/patologia
14.
J Immunol ; 195(10): 4771-80, 2015 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-26423151

RESUMO

IL-25 or IL-17E is a member of IL-17 cytokine family and has immune-modulating activities. The role of IL-25 in maintaining lipid metabolic homeostasis remains unknown. We investigated the effects of exogenous IL-25 or deficiency of IL-25 on hepatic lipid accumulation. IL-25 expression was examined in paraffin-embedded tissue sections of liver from patients or in the livers from mice. Mouse model of steatosis was induced by feeding a high-fat diet (HFD). Extent of steatosis as well as expression of cytokines, key enzymes for lipid metabolic pathways, markers for Kupffer cells/macrophages, and lipid droplet (LD) proteins, were analyzed. Our results show that hepatic steatosis in mice was accompanied by increased LD proteins, but decreased IL-25 in the liver. Decreased hepatic IL-25 was also observed in patients with fatty liver. Administration of IL-25 to HFD-fed wild-type mice led to a significant improvement in hepatic steatosis. This effect was associated with increased expression of IL-13, development of alternatively activated Kupffer cells/macrophages, and decreased expression of LD proteins in the liver. In contrast, administration of IL-25 to HFD-fed mice deficient in STAT6 or IL-13 had no effects. In addition, stimulation of primary hepatocytes with IL-13, but not IL-25, resulted in downregulation of LD proteins. Finally, mice deficient in IL-25 had exacerbated hepatic lipid accumulation when fed the HFD. These data demonstrate that dysregulated IL-25 expression contributes to lipid accumulation, whereas exogenous IL-25 protects against hepatic steatosis through IL-13 activation of STAT6. IL-25 and IL-13 are potential therapeutic agents for hepatic steatosis and associated pathologies.


Assuntos
Gorduras na Dieta/efeitos adversos , Fígado Gorduroso/imunologia , Interleucina-13/imunologia , Interleucinas/imunologia , Gotículas Lipídicas/imunologia , Fator de Transcrição STAT6/imunologia , Animais , Células Cultivadas , Gorduras na Dieta/farmacologia , Modelos Animais de Doenças , Regulação para Baixo/efeitos dos fármacos , Regulação para Baixo/genética , Regulação para Baixo/imunologia , Fígado Gorduroso/induzido quimicamente , Fígado Gorduroso/genética , Fígado Gorduroso/patologia , Fígado Gorduroso/prevenção & controle , Hepatócitos/imunologia , Hepatócitos/patologia , Interleucina-13/genética , Interleucinas/genética , Interleucinas/farmacologia , Gotículas Lipídicas/patologia , Camundongos , Camundongos Knockout , Fator de Transcrição STAT6/genética
16.
Microbiome ; 3: 40, 2015 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-26377648

RESUMO

BACKGROUND: Dynamic interactions between the host and gastrointestinal microbiota play an important role for local and systemic immune homeostasis. Helminthic parasites modulate the host immune response, resulting in protection against autoimmune disease but also increased susceptibility to pathogen infection. The underlying mechanisms remain largely unknown. RESULTS: We showed that the type 2 immune response to enteric Nippostrongylus brasiliensis infection in mice was associated with altered intestinal mucin and AMP expression and shifts in microbiota composition. Most strikingly, infection reduced concentrations of intestinal segmented filamentous bacteria (SFB), known inducers of T helper 17 cells, and IL-17-associated gene expression. Infected mice deficient in IL-13 or STAT6 did not reduce SFB or IL-17, and exogenous IL-25 replicated the effects of parasite infection in wild type mice. CONCLUSIONS: Our data show that parasite infection acts through host type 2 immunity to reduce intestinal SFB and expression of IL-17, providing an example of a microbiota-dependent immune modulation by parasites.


Assuntos
Bactérias/imunologia , Imunidade , Nippostrongylus , Infecções por Strongylida/imunologia , Infecções por Strongylida/microbiologia , Animais , Peptídeos Catiônicos Antimicrobianos/metabolismo , Bactérias/classificação , Biomarcadores , Expressão Gênica , Imunomodulação , Interleucina-13/genética , Interleucina-13/metabolismo , Interleucina-17/genética , Interleucina-17/metabolismo , Mucosa Intestinal/metabolismo , Intestinos/imunologia , Intestinos/microbiologia , Camundongos , Mucinas/metabolismo , Fator de Transcrição STAT6/genética , Fator de Transcrição STAT6/metabolismo , Infecções por Strongylida/parasitologia , Células Th17/imunologia , Células Th17/metabolismo
17.
Oncol Lett ; 8(6): 2790-2794, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25364467

RESUMO

Intestinal metaplasia (IM) and dysplasia are precancerous lesions of gastric cancer (GC); however, the prevalence of IM and dysplasia in patients exhibiting single gastric ulcer (GU) and concomitant gastric and duodenal ulcer (CGDU) varies. In the present study consecutive patients who had undergone esophagogastroduodenal endoscopy were retrospectively screened, and those presenting with GU or CGDU were further evaluated for IM and dysplasia. Patients diagnosed with GC or lymphoma and patients with a history of anti-Helicobacter pylori, non-steroidal anti-inflammatory medicine (NSAIM), H2-receptor antagonist or proton pump inhibitor therapy, were excluded from the present study. Of the 204,073 consecutively screened cases, 8,855 (4.3%) and 2,397 (1.2%) were diagnosed with GU and CGDU, respectively. A total of 1,722 GU and 233 CGDU patients were excluded; thus, 7,133 and 2,164 cases of GU and CGDU, respectively (n=9,297), were included in the present study. IM and dysplasia were observed in 1,348 (14.5%) and 210 (2.3%) patients, respectively. IM was more frequently identified in GU patients compared with CGDU patients (16.4 vs. 8.3%; odds ratio [OR], 2.158; 95% confidence interval [CI], 1.830-2.545; χ2=86.932; P<0.001); furthermore, GU patients exhibited significantly more frequent IM compared with CGDU patients at the gastric antrum (14.2 vs. 5.5%; OR, 2.818; 95% CI, 2.199-3.610; χ2=72.299; P<0.001), gastric incisura (24.0 vs. 14.1%; OR, 1.922; 95% CI, 1.502-2.432; χ2=30.402; P<0.001) and gastric corpus (12.6 vs. 3.3%; OR, 4.259; 95% CI, 1.030-17.609; χ2=4.736; P=0.026). Dysplasia was significantly more frequently identified in GU patients compared with CGDU patients (2.7 vs. 0.7%; OR, 4.027; 95% CI, 2.376-6.823; χ2=31.315; P<0.001), with GU patients exhibiting significantly more severe dysplasia at the gastric antrum (2.4 vs. 0.7%; OR, 3.339; 95% CI, 1.735-6.425; χ2=14.652; P<0.001) and the gastric incisura (2.9 vs. 0.7%; OR, 4.255; 95% CI, 1.694-10.689; χ2=11.229; P<0.001). Additionally, mild IM was more frequently identified in GU patients compared with CGDU patients (15.2 vs. 7.1%; OR, 2.353; 95% CI, 1.972-2.807; χ2=94.798; P<0.001) and dysplasia of a mild (1.7 vs. 0.6%; OR, 2.807; 95% CI, 1.580-4.987; χ2=13.519; P<0.001) or moderate/severe grade (1.1 vs. 0.09%; OR, 11.642; 95% CI, 2.857-47.439; χ2=18.896; P<0.001) was more frequent in GU patients compared with CGDU patients. IM and dysplasia were more frequently observed in GU compared with CGDU patients in the present study, which may be associated with an increased probability of developing GC.

18.
Exp Ther Med ; 7(4): 929-934, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24669253

RESUMO

The aim of this study was to estimate the prevalence and risk factors of intestinal metaplasia (IM) in concomitant gastric and duodenal ulcer (CGDU) disease by retrospectively reviewing consecutive patients who had undergone esophagogastroduodenal endoscopy. Patients who received the endoscopic diagnosis of CGDU disease were selected for analysis and the recorded demographic, endoscopic, clinical and outcome data, including data on the development of IM, were extracted. Associations of the various parameters with IM were estimated by logistic regression analysis and described by the odds ratio (OR) with a 95% confidence interval (CI). Among the total 204,073 consecutive patients screened, 2,397 (1.2%) were diagnosed with CGDU disease. Following application of the exclusion criteria, a total of 2,149 cases were included in the study. The IM prevalence was 8.4%, represented by 153 mild cases, 26 moderate cases and one severe case. Multivariate analysis identified age ≥50 years (OR=2.606, 95% CI=1.889-3.597, χ2=34.000, P<0.001), ulcer at the gastric incisura (OR=2.644, 95% CI=1.926-3.630, χ2=36.142, P<0.001) and Helicobacter pylori (H. pylori) infection (OR=2.338, 95% CI=1.573-3.474, χ2=17.648, P<0.001) as independent risk factors for the development of IM. In addition, the moderate and severe IM grades were more frequently detected in males than in females (18.8% vs. 5.8%; OR=3.769, 95% CI=1.083-13.121, χ2=4.887, P=0.036). IM in patients with CGDU disease is not uncommon. CGDU patients with ongoing H. pylori infection, gastric incisura involvement, older age and/or male gender may be at a higher risk of IM.

19.
Cell Biosci ; 4: 72, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25937893

RESUMO

BACKGROUND: IL-25 is emerging as a key regulator of inflammation in the intestinal mucosa because of its ability to promote type 2 while suppressing Th1 and Th17 responses. Several previous studies reported inconsistent results on the role of exogenous IL-25 in development of colonic inflammation and none were performed in animals with a genetic deletion of IL-25. We investigated the contribution of endogenous IL-25 to DSS-induced colitis using mice deficient in IL-25. RESULTS: Mice were exposed to DSS in drinking water ad libitum either for seven days (acute) or for three cycles of seven days with DSS followed by 14 days without DSS (chronic) to induce colitis, respectively. The loss of body weight, appearance of diarrhea and bloody stools, and shortening of colon length were significantly less pronounced in IL-25(-/-) mice compared to WT mice after exposure to acute DSS. Histological examination showed that DSS-treated IL-25(-/-) mice had only mild inflammation in the colon, while severe inflammation developed in DSS-treated WT mice. A significant up-regulation of IL-33 was observed in acute DSS-treated WT but not in the IL-25(-/-) mice. There was significantly lower expression of pro-inflammatory cytokines in the colon of acute DSS-treated IL-25(-/-) compared to WT mice. IL-25(-/-) mice were also partially protected from chronic DSS challenge especially during the first 2 cycles of DSS exposure. In contrast to IL-25(-/-) mice, IL-13(-/-) mice were more susceptible to DSS-induced colitis. Finally, stimulation of T84 colonic epithelial cells with IL-25 up-regulated the expression of IL-33 and several pro-inflammatory cytokines. CONCLUSIONS: These data indicate that endogenous IL-25 acts as a pro-inflammatory factor in DSS-induced colitis, which is unlikely to be mediated by IL-13 but possibly the induction of IL-33 and other pro-inflammatory mediators from colonic epithelial cells. The present study suggests that IL-25 may contribute to the pathogenesis of inflammatory bowel disease in at least a subgroup of patients.

20.
J Clin Gastroenterol ; 48(10): 870-7, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24296420

RESUMO

BACKGROUND AND AIMS: There is no study verifying the predictive value of model for end-stage liver disease and sodium (MELD-Na) for rebleeding and its associated mortality in cirrhotic patients after cessation of acute esophageal variceal hemorrhage (AVH) by endoscopic therapy. This study aimed to determine the predictive value of MELD-Na by comparing with MELD or Child-Turcotte-Pugh (CTP) scores. PATIENTS AND METHODS: Consecutive adult cirrhotic patients after cessation of AVH by endoscopic therapy (endoscopic variceal ligation or sclerotherapy injections) within 48 hours of admission admitted from 2003 to 2012 were analyzed. The clinical characteristics and laboratory data at admission were documented, based on which MELD-Na, MELD, and CTP scores were calculated. RESULTS: Among 429 patients who had complete control of AVH, 97 patients (22.6%) suffered esophageal variceal rebleeding within 3 months and 206 patients (48.0%) within 1 year. Fifty-three patients (12.4%) died within 3 months and 98 patients (22.8%) within 1 year from rebleeding. The area under receiver operator characteristics curve of the MELD-Na score for predicting rebleeding and its associated mortality was significantly higher than that of the MELD and the CTP score (rebleeding: 0.83 vs. 0.77 vs. 0.69 for 3 months and 0.85 vs. 0.80 vs. 0.65 for 1 year, P<0.05; mortality: 0.81 vs. 0.75 vs. 0.66 for 3 months and 0.82 vs. 0.78 vs. 0.68 for 1 year, P<0.05). CONCLUSIONS: The MELD-Na score is clinically useful in predicting 3-month and 1-year rebleeding and its associated mortality in cirrhotic patients after cessation of AVH by endoscopic therapy.


Assuntos
Doença Hepática Terminal/diagnóstico , Varizes Esofágicas e Gástricas/terapia , Hemorragia Gastrointestinal/terapia , Hemostase Endoscópica/métodos , Cirrose Hepática/diagnóstico , Escleroterapia , Sódio/sangue , Adulto , Área Sob a Curva , Biomarcadores/sangue , China , Doença Hepática Terminal/sangue , Doença Hepática Terminal/etiologia , Varizes Esofágicas e Gástricas/sangue , Varizes Esofágicas e Gástricas/diagnóstico , Varizes Esofágicas e Gástricas/etiologia , Feminino , Hemorragia Gastrointestinal/sangue , Hemorragia Gastrointestinal/diagnóstico , Hemorragia Gastrointestinal/etiologia , Humanos , Ligadura , Cirrose Hepática/sangue , Cirrose Hepática/complicações , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Curva ROC , Ensaios Clínicos Controlados Aleatórios como Assunto , Recidiva , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
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