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1.
Intern Med ; 2024 Apr 09.
Artículo en Inglés | MEDLINE | ID: mdl-38599865

RESUMEN

Objective Gastrointestinal (GI) disorders such as functional dyspepsia (FD), irritable bowel syndrome (IBS), gastroesophageal reflux disease (GERD), and inflammatory bowel disease (IBD) can exhibit overlapping GI symptoms, including abdominal pain and alterations in bowel habits. The symptoms of GI disorders are commonly considered to be triggered and exacerbated by fatty food intake. Therefore, this study aimed to compare the food preferences of patients with GI disorders. Methods Forty food images (including fatty and light foods) and 20 animal images were selected to evaluate food preferences. The preference score was assessed using a visual analog scale ranging from 1 to 100. GI symptoms were evaluated using the GI Symptom Rating Scale (GSRS), and correlations between the GSRS and preference scores were investigated. Results Overall, 22 healthy controls and 23, 29, 27, and 20 patients with FD, IBS, GERD, and IBD, respectively, were enrolled. The preference score for all foods in patients with FD was significantly lower than that in healthy controls and those with IBS, GERD, and IBD (52.9 vs. 66.5 vs. 68.5 vs. 69.1 vs. 70.7, p<0.01). The score of fatty foods was lower in patients with FD than in healthy controls and those with IBS, GERD, and IBD (43.8 vs. 72.3 vs. 77.5 vs. 77.4 vs. 80.7, p<0.01), whereas that of light foods and animal images was not different among the groups. No significant correlation was found between the preference score and symptom severity. Conclusions Patients with FD had a negative preference for foods, particularly fatty foods, independent of the severity of GI symptoms.

2.
Acta Med Okayama ; 78(1): 85-88, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38419319

RESUMEN

A 30-year-old man with idiopathic peptic ulcer disease (IPUD) experienced repeated recurrence of ulcerative bleeding despite treatment with lansoprazole and then vonoprazan. Further evaluation suggested that the cause of the ulcer was strong contractile movements of the antrum. This prompted the co-administration of trimebutine maleate (TM) and vonoprazan to relieve the stomach contractions. TM was effective in preventing the recurrence of ulcerative bleeding, and the patient has remained in remission for 4 years. This case highlights the potential efficacy of TM in treating IPUD and the importance of considering hypercontractility as the underlying cause in cases of IPUD.


Asunto(s)
Úlcera Péptica , Úlcera Gástrica , Trimebutino , Masculino , Humanos , Adulto , Úlcera Péptica/tratamiento farmacológico , Pirroles , Sulfonamidas/uso terapéutico
3.
J Gastroenterol ; 58(12): 1178-1187, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37572136

RESUMEN

BACKGROUND: Functional dyspepsia (FD) and irritable bowel syndrome (IBS) are caused and exacerbated by consumption of fatty foods. However, no study has evaluated brain activity in response to food images in patients with disorders of gut-brain interaction (DGBI). This study aimed to compare food preference and brain activity when viewing food images between patients with DGBI and healthy controls. METHODS: FD and IBS were diagnosed using the ROME IV criteria. Food preference was assessed using a visual analog scale (VAS). Brain activity in the prefrontal cortex (PFC) in response to food images was investigated using functional near-infrared spectroscopy (fNIRS). RESULTS: Forty-one patients were enrolled, including 25 with DGBI. The mean VAS scores for all foods (controls vs. FD vs. IBS: 69.1 ± 3.3 vs. 54.8 ± 3.8 vs. 62.8 ± 3.7, p = 0.02), including fatty foods (78.1 ± 5.4 vs. 43.4 ± 6.3 vs. 64.7 ± 6.1, p < 0.01), were the lowest in patients with FD among all groups. Patients with FD had significantly higher brain activity in the left PFC than those with IBS and healthy controls (mean z-scores in controls vs. FD vs. IBS: - 0.077 ± 0.03 vs. 0.125 ± 0.04 vs. - 0.002 ± 0.03, p < 0.001). CONCLUSIONS: Patients with DGBI, particularly those with FD, disliked fatty foods. The brain activity in patients with DGBI differed from that in healthy controls. Increased activity in the PFC of patients with FD was confirmed.


Asunto(s)
Dispepsia , Síndrome del Colon Irritable , Humanos , Dispepsia/diagnóstico por imagen , Síndrome del Colon Irritable/diagnóstico por imagen , Alimentos , Dimensión del Dolor , Encéfalo/diagnóstico por imagen
4.
JGH Open ; 7(7): 470-475, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37496811

RESUMEN

Background and Aim: Percutaneous drainage of intra-abdominal abscesses is often uncomfortable for the patient and may result in prolonged hospital stays. Recent studies have shown that endoscopic ultrasound-guided abscess drainage (EUS-AD) could effectively treat various abscesses and fluid collections. However, no indications or procedures have been established for EUS-AD treatments, and studies on its usefulness and safety are insufficient. The present study aimed to evaluate the efficacy and safety of EUS-AD for treating non-pancreatic abscesses. Methods: This retrospective study included 20 patients, aged ≥20 years, who underwent EUS-AD for an abscess or fluid accumulation in the abdomen or mediastinum, but not the pancreas. Patients were treated at the Kawasaki University General Medical Center between March 2013 and June 2021. All EUS-AD procedures were performed prior to a percutaneous drainage or surgical drainage. Results: Among the 20 patients who underwent an EUS-AD for abscess, 8 (40%) had liver abscesses, 6 (30%) had intraperitoneal abscesses, 3 had (15%) splenic abscesses, 1 (5%) had a mediastinal abscess, 1 (5%) had an iliopsoas abscess (n = 1, 5%), and 1 (5%) had an abdominal wall abscess. The technical success rate was 95% (n = 19/20). We inserted nasobiliary catheters in 4/20 patients (20%). The clinical success rate was 90% (n = 18/20). Two clinical failures required reintervention, and both were treated with percutaneous drainage. Adverse events were observed in 2/20 patients (10%). One patient experienced fever after the procedure, and the other experienced localized peritonitis. Conclusion: EUS-AD was effective and safe for abscess removal, particularly when approached from the upper gastrointestinal tract.

5.
BMC Gastroenterol ; 23(1): 143, 2023 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-37165352

RESUMEN

BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease. The serum level of soluble CD163 (sCD163), a macrophage activation marker, is associated with liver tissue changes; however, its prognostic value is unknown. Here, we determined the utility of sCD163 as a marker for hepatocellular carcinoma (HCC) and prognostic marker for NAFLD. METHODS: This retrospective study obtained data regarding serum sCD163 levels, liver histology, and background factors associated with NAFLD in 287 patients (men/women, 140/147; average age, 53 ± 14 years) with NAFLD who underwent liver biopsy. Repeated liver biopsies of 287 patients with NAFLD (5.0 ± 2.7 years) were compared regarding serum sCD163 levels and liver tissue changes (stage, grade, steatosis, and NAFLD activity score). RESULTS: Serum sCD163 levels increased with the progression of liver fibrosis and inflammation (both P < 0.05) and were particularly helpful in distinguishing cases of Grade 4 fibrosis (P < 0.001). Levels of sCD163 significantly decreased in patients with NAFLD exhibiting alleviated fibrosis and inflammation (P < 0.05). We could also predict the development of HCC and associated mortality based on serum sCD163 levels at the time of NAFLD diagnosis. Serum sCD163 levels were higher in patients with HCC than in patients without HCC (1074 ± 379 ng/ml vs. 669 ± 261 ng/ml; P < 0.0001), and the same trend was observed for mortality. CONCLUSIONS: The serum sCD163 level reflects the progression of fibrosis and inflammation in liver tissues, showing much promise as a noninvasive biomarker for nonalcoholic steatohepatitis and NAFLD as well as a possible predictor of HCC development and patient prognosis.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Enfermedad del Hígado Graso no Alcohólico , Masculino , Humanos , Femenino , Adulto , Persona de Mediana Edad , Anciano , Carcinoma Hepatocelular/etiología , Carcinoma Hepatocelular/complicaciones , Estudios Retrospectivos , Neoplasias Hepáticas/etiología , Neoplasias Hepáticas/complicaciones , Hígado/patología , Cirrosis Hepática/complicaciones , Inflamación/patología
6.
Hepatol Res ; 53(9): 829-843, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37118869

RESUMEN

AIM: This study aimed to evaluate the age-specific characteristics, prognosis, and complications of patients with lean nonalcoholic fatty liver disease (NAFLD). METHODS: Background factors (age, sex, diabetes, dyslipidemia, hypertension, and PNPLA3 gene polymorphism), blood test results, liver histology findings, muscle mass, and grip strength were investigated in 782 patients with NAFLD who underwent liver biopsy. Prognosis and complications were compared among 549 patients with nonlean or lean NAFLD who were followed up for 6.5 years. Additionally, background factors, blood test results, liver histology findings, prognosis, and complications were compared according to age (≥60 years vs. <60 years) in patients with lean NAFLD. RESULTS: Lean NAFLD patients showed lower aspartate aminotransferase, alanine aminotransferase, homeostasis model assessment-insulin resistance, high-sensitivity C-reactive protein, ferritin, and leptin but higher adiponectin and hemoglobin A1c (HbA1c) levels than patients with nonlean NAFLD. Furthermore, lean NAFLD patients showed less liver fibrosis, inflammation, steatosis, and ballooning. Among lean NAFLD patients, those aged 60 years and older were more frequently female, showed higher rates of hypertension, diabetes, and dyslipidemia, had higher HbA1c and type IV collagen 7S levels, lower platelet count, higher liver fibrosis and inflammation grades, and lower muscle mass and grip strength. Lean NAFLD was associated with a worse prognosis in patients aged 60 years and over than in those younger than 60 years of age and with a higher incidence of liver-related disease, cerebrocardiovascular events, and nonliver cancer. CONCLUSIONS: Age is an important consideration in patients with lean NAFLD. Compared with nonlean NAFLD, lean NAFLD was associated with a worse prognosis and higher risk of complications in patients aged 60 years and older.

7.
Biosci Biotechnol Biochem ; 87(6): 611-619, 2023 May 19.
Artículo en Inglés | MEDLINE | ID: mdl-36941128

RESUMEN

Increased tumor necrosis factor α (TNFα) expression in intestinal epithelial cells (IECs) plays a major role in the development and progression of inflammatory bowel disease (IBD) and colorectal cancer (CRC). The present study aimed to clarify the relationship between TNFα and skatole, a tryptophan-derived gut microbiota metabolite. The aryl hydrocarbon receptor (AhR) antagonist CH223191 promoted, whereas the p38 inhibitor SB203580 suppressed the increase in TNFα mRNA and protein expression induced by skatole in intestinal epithelial Caco-2 cells. The c-Jun N-terminal kinase (JNK) inhibitor SP600125 repressed only the increased TNFα protein expression, whereas the extracellular signal-regulated kinase (ERK) pathway inhibitor U0126 did not affect increased TNFα expression at any level. A neutralizing antibody against TNFα partially inhibited skatole-induced cell death. Overall, these results suggested that TNFα expression is increased by the concerted actions of skatole-activated p38 and JNK, and that TNFα exerts autocrine/paracrine actions on IECs despite partial suppression by activated AhR. Therefore, skatole might play an important role in the development and progression of IBD and CRC via increased TNFα expression.


Asunto(s)
Enfermedades Inflamatorias del Intestino , Factor de Necrosis Tumoral alfa , Humanos , Factor de Necrosis Tumoral alfa/farmacología , Factor de Necrosis Tumoral alfa/metabolismo , Escatol/metabolismo , Células CACO-2 , Receptores de Hidrocarburo de Aril/genética , Receptores de Hidrocarburo de Aril/metabolismo , Células Epiteliales/metabolismo , Proteínas Quinasas JNK Activadas por Mitógenos/metabolismo , Enfermedades Inflamatorias del Intestino/metabolismo , Proteínas Quinasas p38 Activadas por Mitógenos/genética , Proteínas Quinasas p38 Activadas por Mitógenos/metabolismo
8.
J Gastroenterol Hepatol ; 38(5): 775-782, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36706165

RESUMEN

BACKGROUND AND AIM: The clinical severity and course of acute lower gastrointestinal bleeding (ALGIB) are believed to differ between inpatient-onset and outpatient-onset cases, but no reports have investigated these issues in detail. We aimed to evaluate the clinical differences between inpatient-onset and outpatient-onset ALGIB. METHODS: Medical records of patients who had undergone emergency colonoscopy for ALGIB were retrospectively reviewed. The severity was evaluated using the NOBLADS score. Patients with obvious ALGIB relapse and/or persistent iron-deficiency anemia after emergency colonoscopy were considered to exhibit a poor clinical course. RESULTS: We reviewed 723 patients with ALGIB and divided them into the inpatient-onset cohort (172 patients) and outpatient-onset cohort (551 patients). Compared with the outpatient-onset cohort, the inpatient-onset cohort had a significantly higher proportion of patients with a poor clinical course (51.2% vs 21.6%; P < 0.001) and a significantly higher mean NOBLADS score (3.6 ± 1.1 vs 2.5 ± 1.0; P < 0.001). The most common bleeding source was acute hemorrhagic rectal ulcer (52.3%) in the inpatient-onset cohort and colonic diverticular bleeding (29.4%) in the outpatient-onset cohort. Multivariate analysis showed that a platelet count < 15 × 104 /µL and albumin concentration < 3 g/dL were significantly associated with a poor clinical course in the inpatient-onset cohort. CONCLUSIONS: The clinical course was significantly worse in the inpatient-onset cohort than in the outpatient-onset cohort. The bleeding source, clinical characteristics, and clinical course differed between the inpatient-onset and outpatient-onset cohorts. The clinical course in the inpatient-onset cohort may depend on the patient's condition at ALGIB onset.


Asunto(s)
Pacientes Internos , Pacientes Ambulatorios , Humanos , Enfermedad Aguda , Progresión de la Enfermedad , Hemorragia Gastrointestinal/diagnóstico , Hemorragia Gastrointestinal/epidemiología , Hemorragia Gastrointestinal/etiología , Estudios Observacionales como Asunto , Estudios Retrospectivos
9.
Intern Med ; 62(3): 381-386, 2023 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-35676034

RESUMEN

Two adult cases of acute gastric mucosal lesions (AGML) caused by Helicobacter pylori infection were confirmed by spontaneous eradication during the follow-up period. The clinical course of the initial infection by H. pylori in adults with AGML remains unclear, whether it is transient or progresses to a persistent infection. In these two reported cases, gastric biopsies at the time of the onset revealed the presence of H. pylori; however, serum H. pylori antibodies performed at the same time were negative. Retesting for H. pylori serum antibody, after six months in one and after two months in the other, was negative, confirming spontaneous eradication.


Asunto(s)
Infecciones por Helicobacter , Helicobacter pylori , Adulto , Humanos , Infecciones por Helicobacter/complicaciones , Infecciones por Helicobacter/patología , Mucosa Gástrica/patología , Estómago/patología , Gastroscopía
10.
Nihon Shokakibyo Gakkai Zasshi ; 119(12): 1103-1111, 2022.
Artículo en Japonés | MEDLINE | ID: mdl-36504103

RESUMEN

We present a 56-year-old female patient diagnosed with stage 2/grade 3 non-alcoholic steatohepatitis (NASH) via liver biopsy. Over the next 14 years, six liver biopsies were performed, and the patient was followed up clinically. This was a valuable case wherein we were able to investigate the histology of the liver and the timing of changes in the AST/ALT ratio, platelets, albumin, FIB4-Index, and liver fibrosis markers.


Asunto(s)
Cirrosis Hepática , Enfermedad del Hígado Graso no Alcohólico , Femenino , Humanos , Persona de Mediana Edad , Biopsia , Cirrosis Hepática/etiología , Biomarcadores
11.
DEN Open ; 2(1): e110, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35898592

RESUMEN

Ectopic varices around the choledochojejunostomy site after pancreatoduodenectomy are rare. Diagnosing ectopic varices is difficult but, if untreated or misdiagnosed, the resulting mortality is high. This report describes three cases of ectopic variceal bleeding at the choledochojejunostomy site that were improved by endoscopic glue injection therapy (EGIT) with cyanoacrylate (CA). Case 1 was a 68-year-old man admitted to the hospital with hematemesis and melena. Six years prior, the patient underwent a total pancreatectomy for intraductal papillary mucinous adenocarcinoma. We diagnosed ectopic variceal rupture at the choledochojejunostomy site and controlled bleeding by EGIT with alpha-CA (αCA). Two recurrences of bleeding were improved by EGIT. Case 2 was a 71-year-old man admitted to the hospital with melena. Two and a half years prior, the patient underwent pancreatoduodenectomy for pancreatic head adenocarcinoma. We found the red plug on the ectopic varices at the choledochojejunostomy site through endoscopic observation and performed EGIT with αCA. He had no recurrence. Case 3 was a 77-year-old woman admitted to the hospital with melena. Eleven years prior, the patient underwent pancreatoduodenectomy for chronic pancreatitis at the pancreatic head. We controlled ectopic variceal bleeding at the choledochojejunostomy site by EGIT with αCA. Seven years after EGIT, ectopic varices could not be identified with an endoscope and there was no recurrence of ectopic bleeding.

12.
Radiol Case Rep ; 17(7): 2309-2314, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35570858

RESUMEN

A 72-year-old female without abdominal symptoms visited our hospital for routine follow-up while undergoing pancreatic cancer treatment (using TS-1). Her vital signs were normal, and her abdomen was soft and non-tender. Blood test revealed elevated C-reactive protein levels with normal white blood cell count. Computed tomography was performed for follow-up of pancreatic cancer. Contrast-enhanced computed tomography showed partial discontinuity and irregular thickness of the gallbladder wall; however, a definitive diagnosis was not obtained due to unclear imaging. Contrast-enhanced transabdominal ultrasonography revealed intraluminal membranes in the gallbladder and a perfusion defect at the bottom, indicating gangrenous cholecystitis. Surgical resection was performed, and pathological examination showed severe necrosis of the gallbladder wall, consistent with the findings of contrast-enhanced transabdominal ultrasonography.

13.
Case Rep Gastroenterol ; 16(1): 122-128, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35528775

RESUMEN

Afferent-loop syndrome (ALS) is known as a rare complication of partial or total gastrectomy and also occurs after pancreatoduodenectomy. The symptoms of ALS vary with the location of the mechanical obstruction, and the choice of therapeutic method should reflect the patient's condition and disease state. Herein, we report the use of endoscopic ultrasound (EUS)-guided afferent loop drainage with a plastic stent and its reintervention for malignant ALS. An 80-year-old man was admitted to our hospital with abdominal pain. Thirty-two months before, the patient underwent left hepatectomy with choledochojejunostomy and Roux-en-Y reconstruction for hilar biliary adenocarcinoma. An abdominal CT scan showed a dilated afferent loop and a low-density lesion in the peritoneum that suggested recurrence of hilar biliary adenocarcinoma and malignant ALS due to mechanical obstruction of the afferent loop caused by peritoneal dissemination. The recurrence site did not include the choledochojejunostomy anastomosis and was far distal to it. We employed a convex EUS scope and directly punctured the afferent loop from the stomach. We inserted one double pig-tail stent, and the ALS immediately improved. Five months later, ALS recurred, and we exchanged a plastic stent through the fistula. After reintervention, ALS did not recur before the patient's death due to cancer progression.

14.
JGH Open ; 6(4): 251-256, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35475205

RESUMEN

Background and Aim: Obstructive jaundice induced by pancreatic adenocarcinoma is typically treated with biliary drainage with endoscopic retrograde cholangiopancreatography (ERCP)-guided biliary drainage (ERCP-BD). Recently, endoscopic ultrasonography-guided biliary drainage (EUS-BD) was employed as an alternative method after ERCP-BD failed. We aimed to determine the efficacy and safety of EUS-BD for primary biliary drainage. Methods: Between December 2011 and February 2019, at Kawasaki General Medical Center, we retrospectively enrolled 33 patients who had undergone endoscopic biliary drainage with a metal stent, in a first attempt to relieve obstructive jaundice caused by unresectable pancreatic adenocarcinoma. We compared the technical and clinical outcomes between ERCP-BD and EUS-BD. Results: Twenty-three patients underwent ERCP-BD and 10 underwent EUS-BD. Both groups achieved 100% technical success. The clinical success rates were similar between the groups: 91% (21/23 patients) for ERCP-BD and 100% (10/10 patients) for EUS-BD (P = 0.48). Biliary obstruction recurred in 6/23 patients (26%) treated with ERCP-BD and 1/10 patients (10%) treated with EUS-BD (P = 0.40). Other adverse events occurred in 4/23 patients (17%) in the ERCP-BD group and 1/10 patients (10%) in the EUS-BD group (P = 0.99). Conclusion: We suggest that EUS-BD could be employed for primary biliary drainage in patients with obstructive jaundice caused by unresectable pancreatic adenocarcinoma.

15.
Membranes (Basel) ; 12(2)2022 Jan 18.
Artículo en Inglés | MEDLINE | ID: mdl-35207024

RESUMEN

A new evaluation method for preparing silica membranes by counter diffusion chemical vapor deposition (CVD) was proposed. This is the first attempt to provide new insights, such as the decomposition products, membrane selectivity, and precursor reactivity. The permeation of the carrier gas used for supplying a silica precursor was quantified during the deposition reaction by using a mass spectrometer. Membrane formation processes were evaluated by the decrease of the permeation of the carrier gas derived from pore blocking of the silica deposition. The membrane formation processes were compared for each deposition condition and precursor, and the apparent silica deposition rates from the precursors such as tetramethoxysilane (TMOS), hexyltrimethoxysilane (HTMOS), or tetraethoxysilane (TEOS) were investigated by changing the deposition temperature at 400-600 °C. The apparent deposition rates increased with the deposition temperature. The apparent activation energies of the carrier gas through the TMOS, HTMOS, and TEOS derived membranes were 44.3, 49.4, and 71.0 kJ mol-1, respectively. The deposition reaction of the CVD silica membrane depends on the alkoxy group of the silica precursors.

16.
Diabetol Int ; 13(1): 320-324, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35059271

RESUMEN

Hyperosmolar hyperglycemic status (HHS) is one of the most serious acute metabolic complications of diabetes mellitus (DM) and the patients with type 2 DM are immunocompromised host, especially when glycemic control is poor. Under hyperglycemic conditions, we have to pay much attention even for rare infection. Bouveret's syndrome is a rare type of gallstone ileus together with duodenal obstruction secondary to the passage of a stone through a cholecystoduodenal fistula. Herein, we reported a rare case with formation of large abscess tumor, including necrotic ileum and gallstone after taking therapy for HHS. She was under more rare conditions rather than Bouveret's syndrome, because large abscess tumor was formed not in the duodenal bulb but in the ileum together with necrotic ileitis and abdominal abscess with impacted gallstone. We should bear in mind that T2DM patients are immunocompromised host in particular under untreated or poorly controlled conditions and thereby they could have rare inflammatory diseases such as a large abscess tumor. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s13340-021-00540-3.

17.
Membranes (Basel) ; 11(12)2021 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-34940427

RESUMEN

Thin pure-silica chabazite (Si-CHA) membranes have been synthesized by using a secondary growth method on a porous silica substrate. A CO2 permeance of 2.62 × 10-6 mol m-2 s-1 Pa-1 with a CO2/CH4 permeance ratio of 62 was obtained through a Si-CHA membrane crystallized for 8 h using a parent gel of H2O/SiO2 ratio of 4.6. The CO2 permeance through the Si-CHA membrane on a porous silica substrate was twice as high as that through the membrane synthesized on a porous alumina substrate, which displayed a similar zeolite layer thickness.

18.
Biosci Biotechnol Biochem ; 85(9): 2011-2021, 2021 Aug 25.
Artículo en Inglés | MEDLINE | ID: mdl-34245564

RESUMEN

Most studies of indole derivatives such as IAA produced by intestinal microbiota have been based on the premise that binding to AhR leads to biological responses. We previously revealed that IAA binds to more than one receptor, and thus the present study aimed to identify a new receptor for IAA and analyze its mechanism of action. We found that the TLR4 antagonist TAK-242 did not affect the IAA-induced increase in CYP1A1 expression at 3 h and decreased TNFα expression at 8 days. However, TAK-242 alleviated decreased TNFα expression induced by IAA at 2 days and promoted IAA-induced increased CYP1A1 expression by inhibiting JNK activation at 8 days. Taken together, TLR4 may be a novel IAA receptor with signaling pathways that regulate CYP1A1 and TNFα expression depending on the culture stage of Caco-2 cells. Furthermore, our findings offer important clues for elucidating the action mechanisms of indole derivatives that affect hosts.


Asunto(s)
Citocromo P-450 CYP1A1/metabolismo , Ácidos Indolacéticos/metabolismo , Receptor Toll-Like 4/fisiología , Factor de Necrosis Tumoral alfa/metabolismo , Células CACO-2 , Activación Enzimática , Humanos , MAP Quinasa Quinasa 4/metabolismo , Transducción de Señal , Receptor Toll-Like 4/metabolismo
19.
World J Hepatol ; 13(5): 571-583, 2021 May 27.
Artículo en Inglés | MEDLINE | ID: mdl-34131471

RESUMEN

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease and affects approximately 25% of the general global adult population. The prognosis of NAFLD patients with advanced liver fibrosis is known to be poor. It is difficult to assess disease progression in all patients with NAFLD; thus, it is necessary to identify patients who will show poor prognosis. AIM: To investigate the efficacy of non-invasive biomarkers for predicting disease progression in patients with NAFLD. METHODS: We investigated biomarkers associated with mortality in patients with NAFLD who visited the Kawasaki Medical School General Medical Center from 1996 to 2018 and underwent liver biopsy and had been followed-up for > 1 year. Cumulative overall mortality and liver-related events during follow-up were calculated using the Kaplan-Meier analysis and compared using log-rank testing. We calculated the odds ratio and performed receiver operating characteristic curve analysis with logistic regression analysis to determine the optimal cut-off value with the highest prognostic ability. RESULTS: We enrolled 489 patients who were followed-up for a period of 1-22.2 years. In total, 13 patients died (2.7% of total patients enrolled); 7 patients died due to liver-related causes. Poor prognosis was associated with liver fibrosis on histological examination but not with inflammation or steatosis. Blood biomarkers associated with mortality were platelet counts, albumin levels, and type IV collagen 7S levels. The optimal cutoff index for predicting total mortality was a platelet count of 15 × 104/µL, albumin level of 3.5 g/dL, and type IV collagen 7S level of 5 mg/dL. In particular, only one-factor patients with NAFLD presenting with platelet counts ≤ 15 × 104/µL, albumin levels ≤ 3.5 g/dL, or type IV collagen 7S ≥ 5 mg/dL showed 5-year, 10-year, and 15-year survival rates of 99.7%, 98.3%, and 94%, respectively. However, patients with two factors had lower 5-year and 10-year survival rates of 98% and 43%, respectively. Similarly, patients with all three factors showed the lowest 5-year and 10-year survival rates of 53% and 26%, respectively. CONCLUSION: A combination of the three non-invasive biomarkers is a useful predictor of NAFLD prognosis and can help identify patients with NAFLD who are at a high risk of all-cause mortality.

20.
Intern Med ; 60(9): 1397-1401, 2021 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-33281161

RESUMEN

A 44-year-old patient progressed from nonalcoholic fatty liver (NAFL) to nonalcoholic steatohepatitis (NASH) cirrhosis. She was diagnosed with NAFL via a liver biopsy. At 56 years old, she was diagnosed with NASH stage 3 via a second liver biopsy. One year later, she was diagnosed with NASH cirrhosis via a third liver biopsy. This is the first study to report the gradual deterioration of liver histology shown via three liver biopsies and fibrosis markers in a patient who progressed from NAFL to NASH cirrhosis. Following menopause, it is necessary to be aware of the rapid development of liver fibrosis.


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Adulto , Biopsia , Progresión de la Enfermedad , Femenino , Humanos , Hígado/patología , Cirrosis Hepática/etiología , Cirrosis Hepática/patología , Persona de Mediana Edad , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Enfermedad del Hígado Graso no Alcohólico/patología
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