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1.
Surg Case Rep ; 8(1): 141, 2022 Jul 27.
Article in English | MEDLINE | ID: mdl-35895183

ABSTRACT

BACKGROUND: Foreign body ingestion is a common case in daily medical care, and it usually passes through the entire gastrointestinal tract naturally and is excreted in the feces. However, long and sharp foreign bodies may be difficult to pass naturally due to their shape. Here, we present a rare case of a duodenal foreign body, a toothbrush, that required laparoscopic surgical removal after a failed endoscopic attempt. CASE PRESENTATION: A 51-year-old male with intellectual disability presented to our hospital due to fever. Initially, he was diagnosed with aspiration pneumonia by chest X-ray and blood examination. However, abdominal X-ray examination suggested a foreign body, and a computed tomography scan revealed a toothbrush in the duodenum. Therefore, upper gastrointestinal endoscopy was immediately attempted to remove it, but it could not be safely removed because the handle part of the toothbrush seemed deeply embedded in the duodenal mucosa. Therefore, this case was diagnosed as duodenal incarceration of the toothbrush, and it was removed by laparoscopic surgery. The operation was performed safely, and the patient's postoperative course was good without any complications. The extracted toothbrush was 15 cm in length. CONCLUSION: We experienced a rare case of a duodenal foreign body, which was a toothbrush. The duodenal foreign body was safely removed by laparoscopic surgery for the first time.

2.
Indian J Gastroenterol ; 41(2): 169-180, 2022 04.
Article in English | MEDLINE | ID: mdl-35279807

ABSTRACT

OBJECTIVE: Nonalcoholic steatohepatitis (NASH) is difficult to diagnose in patients with no symptoms. We aimed to investigate the combined effect of farnesoid X receptor (FXR) agonist, obeticholic acid (OCA), and angiotensin II type 1 receptor blocker (ARB: losartan) on an ongoing hepatic fibrosis in a NASH rat model. METHODS: Fischer 344 rats were fed with choline-deficient L-amino-acid-defined (CDAA) diet for 16 weeks. After 8-week administration of CDAA diet, OCA, losartan, or a combination of these drugs was administered at a dose of 30 mg/kg/day for 8 weeks by oral gavage. The in vivo and in vitro effects of OCA + losartan and liver fibrosis progression, lipopolysaccharide (LPS), Toll-like receptor 4 (TLR4) regulatory cascade, and gut barrier function were evaluated. RESULTS: OCA + losartan alleviated hepatic fibrosis progression by suppressing α-SMA expression. It inhibited the proliferation of activated hepatic stellate cell (Ac-HSC) and mRNA expression of hepatic transforming growth factor-ß1 (TGF-ß1), TLR4, and tissue inhibitor of metalloproteinase-1 (TIMP-1) and decreased the hydroxyproline levels. OCA increased the hepatic matrix metalloproteinase-2 (MMP-2) mRNA expression. OCA decreased the mRNA expression of hepatic LPS-binding protein and intestinal permeability by ameliorating the disruption of CDAA diet-induced zonula occludens-1. Losartan directly inhibited the proliferation of Ac-HSC. The in vitro suppressive effects of OCA + losartan on the mRNA expressions of TGF-ß1 and α1(I)-procollagen, TLR4, and TIMP-1 in Ac-HSCs were almost in parallel. CONCLUSIONS: OCA + losartan suppressed the ongoing hepatic fibrosis by attenuating gut barrier dysfunction and suppressing Ac-HSC proliferation. Combined therapy may be a promising novel approach for NASH with fibrosis.


Subject(s)
Angiotensin II Type 1 Receptor Blockers , Non-alcoholic Fatty Liver Disease , Angiotensin II Type 1 Receptor Blockers/pharmacology , Angiotensin II Type 1 Receptor Blockers/therapeutic use , Angiotensin Receptor Antagonists/therapeutic use , Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Animals , Humans , Liver Cirrhosis/genetics , Losartan/pharmacology , Losartan/therapeutic use , Matrix Metalloproteinase 2 , Non-alcoholic Fatty Liver Disease/drug therapy , Non-alcoholic Fatty Liver Disease/metabolism , RNA, Messenger/metabolism , Rats , Tissue Inhibitor of Metalloproteinase-1/therapeutic use , Toll-Like Receptor 4 , Transforming Growth Factor beta1/metabolism , Transforming Growth Factor beta1/therapeutic use
3.
Nihon Shokakibyo Gakkai Zasshi ; 118(6): 562-570, 2021.
Article in Japanese | MEDLINE | ID: mdl-34108356

ABSTRACT

Contrast medium-enhanced computed tomography revealed a mass in the liver of a 65-year-old man. The edge but not the center of the mass was enhanced. Ultrasonography-guided percutaneous needle biopsy revealed the diagnosis of angiosarcoma of the liver, and it was treated with chemotherapy. Angiosarcoma of the liver has various appearances on imaging and is not often diagnosed while patients are alive. If the tumor is difficult to diagnose by imaging and thought to be unresectable, a biopsy can help in guiding treatment, but treatment should be adapted with caution.


Subject(s)
Hemangiosarcoma , Liver Neoplasms , Aged , Autopsy , Biopsy, Needle , Hemangiosarcoma/diagnostic imaging , Humans , Liver , Liver Neoplasms/diagnostic imaging , Male , Ultrasonography
4.
Hepatol Res ; 49(10): 1147-1161, 2019 Oct.
Article in English | MEDLINE | ID: mdl-31177586

ABSTRACT

AIM: Non-alcoholic steatohepatitis (NASH) has a broad clinicopathological spectrum (inflammation to severe fibrosis). The farnesoid X receptor agonist obeticholic acid (OCA) ameliorates the histological features of NASH; satisfactory antifibrotic effects have not yet been reported. Here, we investigated the combined effects of OCA + a dipeptidyl peptidase-4 inhibitor (sitagliptin) on hepatic fibrogenesis in a rat model of NASH. METHODS: Fifty Fischer 344 rats were fed a choline-deficient L-amino-acid-defined (CDAA) diet for 12 weeks. The in vitro and in vivo effects of OCA + sitagliptin were assessed along with hepatic fibrogenesis, lipopolysaccharide-Toll-like receptor 4 (TLR4) regulatory cascade and intestinal barrier function. Direct inhibitory effects of OCA + sitagliptin on activated hepatic stellate cells (Ac-HSCs) were assessed in vitro. RESULTS: Treatment with OCA + sitagliptin potentially inhibited hepatic fibrogenesis along with Ac-HSC proliferation and hepatic transforming growth factor (TGF)-ß1, α1(I)-procollagen, and tissue inhibitor of metalloproteinase-1 (TIMP-1) mRNA expression and hydroxyproline levels. Obeticholic acid inhibited hepatic TLR4 expression and increased hepatic matrix metalloproteinase-2 expression. Obeticholic acid decreased intestinal permeability by ameliorating CDAA diet-induced zonula occludens-1 disruption, whereas sitagliptin directly inhibited Ac-HSC proliferation. The in vitro suppressive effects of OCA + sitagliptin on TGF-ß1 and α1(I)-procollagen mRNA expression and p38 phosphorylation in Ac-HSCs were almost consistent. Sitagliptin directly inhibited the regulation of Ac-HSC. CONCLUSIONS: Treatment with OCA + sitagliptin synergistically affected hepatic fibrogenesis by counteracting endotoxemia induced by intestinal barrier dysfunction and suppressing Ac-HSC proliferation. Thus, OCA + sitagliptin could be a promising therapeutic strategy for NASH.

5.
Pancreas ; 48(5): 686-689, 2019.
Article in English | MEDLINE | ID: mdl-31091216

ABSTRACT

OBJECTIVES: The diagnostic yield of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) cytology widely varies depending on the treatment method used. Liquid-based cytology (LBC) has gained popularity in the gynecological field because of its efficacy in collection of target cells and simplicity in the manipulation of specimens. Since the introduction of EUS-FNA at our institution, we have used LBC for the diagnosis of pancreatic mass lesions. This study aims to investigate the diagnostic efficacy of EUS-FNA with LBC in patients with pancreatic mass lesions during the learning curve for EUS-FNA. METHODS: In this study, we retrospectively enrolled 222 patients with pancreatic mass lesions who were diagnosed using EUS-FNA with LBC between 2011 and 2016. The diagnostic yields for EUS-FNA with LBC for pancreatic mass lesions were evaluated. RESULTS: The diagnostic sensitivity, specificity, and accuracy for malignancy were found to be 93.9%, 95.1%, and 94.1%, respectively. CONCLUSIONS: This study suggests that EUS-FNA with LBC for specimens provides good diagnostic efficacy in patients with pancreatic mass lesions even during the learning curve for EUS-FNA.


Subject(s)
Cytodiagnosis/methods , Endoscopic Ultrasound-Guided Fine Needle Aspiration/methods , Learning Curve , Pancreas/pathology , Pancreatic Neoplasms/diagnosis , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Retrospective Studies , Sensitivity and Specificity , Young Adult
6.
Hepatol Res ; 49(9): 1015-1025, 2019 Sep.
Article in English | MEDLINE | ID: mdl-31021038

ABSTRACT

AIM: To identify laboratory predictors of histological progression (HP) of primary biliary cholangitis (PBC). METHODS: Sequential biopsies were carried out on 35 (11.4%) of 308 patients with PBC treated with ursodeoxycholic acid (UDCA). Patients were divided into high γ-glutamyl transpeptidase (GGT) (n = 18) and low GGT (n = 17) groups, based on the median value of GGT at baseline. Patients were then categorized as showing HP (progressive group, PG) or lacking HP (non-progressive group, NPG) according to the Scheuer and Nakanuma classifications, with the latter grading liver fibrosis (fibrosis score) and bile duct loss (BDL score). RESULTS: According to the Scheuer definition, 12 patients had HP and 23 did not. According to the Nakanuma definition, 8 and 27 patients were in the PG and NPG groups, respectively. The fibrosis and BDL scores progressed in 13 and 8 patients, respectively, whereas 22 and 25 patients did not show HP, respectively. Fisher's exact probability test analysis revealed that the rate of HP using the Nakanuma fibrosis score was significantly higher in the high GGT group compared to the low GGT group (P < 0.05). However, no significant correlation was found between the HP of PBC and the biochemical response to UDCA therapy. Both univariate and multivariate logistic regression analyses indicated that the serum GGT level at baseline is an independent risk factor for an increased Nakanuma fibrosis score. CONCLUSIONS: The level of serum GGT at baseline is significantly associated with liver fibrosis progression in PBC, and therefore could help to predict the HP of PBC.

7.
J Med Case Rep ; 13(1): 64, 2019 Mar 07.
Article in English | MEDLINE | ID: mdl-30841908

ABSTRACT

BACKGROUND: Gastric cancer has a wide spectrum of clinical features, imaging manifestations, and pathology. Punctate calcifications in gastric cancer are infrequent but are usually found in mucinous adenocarcinoma. However, there have only been a few autopsy case reports describing the correlation between the radiology and pathology findings of calcified mucinous adenocarcinoma of the stomach. We present an autopsy case of mucinous gastric adenocarcinoma with iris metastases as the initial symptom. CASE PRESENTATION: A 74-year-old Japanese woman presented with blurred vision. Her treating ophthalmologist diagnosed acute iritis with secondary glaucoma. The histopathological and immunohistochemical features of a trabeculectomy specimen favored metastatic carcinoma, most likely of gastrointestinal tract origin. Esophagogastroduodenoscopy revealed multiple irregularly shaped ulcerative lesions, multiple erosions, and thickened folds in the corpus of her stomach. Histologic examination of a gastric tissue specimen obtained by endoscopic biopsy revealed poorly differentiated carcinoma with signet ring cell features. Computed tomography revealed a tumor with multiple punctate calcifications in the thickened gastric wall with diffuse low attenuation and multiple lymph node metastases, including the para-aortic lymph nodes, and peritoneal dissemination. She was diagnosed with stage IV gastric cancer (T4N3M1) and underwent seven cycles of 5-weekly TS-1, a novel oral fluoropyrimidine derivative, plus cisplatin therapy. Serial follow-up computed tomography revealed successive increases in the gastric wall calcifications. Her disease stabilized, but she died of aspiration pneumonia 8 months after the first visit. Autopsy tissue specimens had miliary, punctate calcifications present in abundant extracellular mucin pools in the submucosa, corresponding to the thickened low-attenuating middle layer on computed tomography. The final diagnosis was mucinous gastric adenocarcinoma because mucinous adenocarcinoma is diagnosed when more than half of the tumor area contains extracellular mucin pools. CONCLUSIONS: We report the pathology and computed tomography imaging characteristics of a case of calcified mucinous adenocarcinoma of the stomach metastatic to the iris, including findings at autopsy. Metastatic carcinomas in the iris originating in the stomach are exceedingly rare. Multiple punctate calcifications were present in pools of extracellular mucin, a diagnostic clue for mucinous adenocarcinoma. Possible mechanisms underlying scattered punctuate calcifications in gastric mucinous adenocarcinoma warrant further investigation.


Subject(s)
Adenocarcinoma, Mucinous/pathology , Calcinosis/pathology , Iris Neoplasms/secondary , Iris/pathology , Stomach Neoplasms/pathology , Vision Disorders/diagnostic imaging , Adenocarcinoma, Mucinous/diagnostic imaging , Adenocarcinoma, Mucinous/drug therapy , Aged , Calcinosis/diagnostic imaging , Fatal Outcome , Female , Humans , Iris/diagnostic imaging , Iris Neoplasms/diagnostic imaging , Stomach Neoplasms/diagnostic imaging , Stomach Neoplasms/drug therapy , Tomography, X-Ray Computed , Vision Disorders/etiology , Vision Disorders/pathology
8.
Clin Mol Hepatol ; 25(1): 65-73, 2019 03.
Article in English | MEDLINE | ID: mdl-30798587

ABSTRACT

BACKGROUND/AIMS: L-carnitine not only alleviates hyperammonemia and reduces muscle cramps in patients with liver cirrhosis, but also improves anemia in patients with chronic hepatitis and renal dysfunction. This study prospectively evaluated the preventative efficacy of L-carnitine supplementation against hemolytic anemia during antiviral treatment using ribavirin in patients with hepatitis C virus (HCV)-related chronic liver disease. METHODS: A total of 41 patients with chronic hepatitis were consecutively enrolled in this study. Group A (n=22) received sofosbuvir plus ribavirin for 3 months, whereas group B (n=19) was treated with sofosbuvir, ribavirin, and L-carnitine. Hemoglobin concentration changes, the effects of antiviral treatment, and the health status of patients were analyzed using short form-8 questionnaires. RESULTS: A significantly smaller decrease in hemoglobin concentration was observed in group B compared to group A at every time point. Moreover, the prescribed dose intensity of ribavirin in group B was higher than that of group A, resulting in a higher ratio of sustained virological response (SVR) 24 in group B compared with group A. The physical function of patients in group B was also significantly improved compared to group A at the end of antiviral treatment. CONCLUSION: L-carnitine supplementation alleviates ribavirin-induced hemolytic anemia in patients with HCV and helps relieve the physical burden of treatment with ribavirin-containing regimens. These advantages significantly increase the likelihood of achieving SVR.


Subject(s)
Anemia, Hemolytic/diagnosis , Carnitine/therapeutic use , Hepatitis C/drug therapy , Ribavirin/adverse effects , Aged , Anemia, Hemolytic/etiology , Drug Therapy, Combination , Female , Humans , Male , Middle Aged , Quality of Life , Ribavirin/therapeutic use , Sofosbuvir/therapeutic use , Surveys and Questionnaires , Treatment Outcome
9.
Hepatol Res ; 49(3): 284-295, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30365236

ABSTRACT

AIM: Intestinal endotoxin is important for the progression of non-alcoholic steatohepatitis (NASH). Circulating endotoxin levels are elevated in most animal models of diet-induced non-alcoholic fatty liver disease (NAFLD) and NASH. Furthermore, plasma endotoxin levels are significantly higher in NAFLD patients, which is associated with small intestinal bacterial overgrowth and increased intestinal permeability. By improving the gut microbiota environment and restoring gut-barrier functions, probiotics are effective for NASH treatment in animal models. It is also widely known that hepatic fibrosis and suppression of activated hepatic stellate cells (Ac-HSCs) can be attenuated using an angiotensin-II type 1 receptor blocker (ARB). We thus evaluated the effect of combination probiotics and ARB treatment on liver fibrosis using a rat model of NASH. METHODS: Fisher 344 rats were fed a choline-deficient/L-amino acid-defined (CDAA) diet for 8 weeks to generate the NASH model. Animals were divided into ARB, probiotics, and ARB plus probiotics groups. Therapeutic efficacy was assessed by evaluating liver fibrosis, the lipopolysaccharide Toll-like receptor (TLR)4 regulatory cascade, and intestinal barrier function. RESULTS: Both probiotics and ARB inhibited liver fibrosis, with concomitant HSC activation and suppression of liver-specific transforming growth factor-ß and TLR4 expression. Probiotics reduced intestinal permeability by rescuing zonula occludens-1 disruption induced by the CDAA diet. Angiotensin-II type 1 receptor blocker was found to directly suppress Ac-HSCs. CONCLUSIONS: Probiotics and ARB are effective in suppressing liver fibrosis through different mechanisms. Currently both drugs are in clinical use; therefore, the combination of probiotics and ARB is a promising new therapy for NASH.

10.
Trials ; 20(1): 816, 2019 Dec 30.
Article in English | MEDLINE | ID: mdl-31888733

ABSTRACT

BACKGROUND: Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) was developed with the aim of further improving the diagnostic performance of endoscopic ultrasound. Although novel puncture needles have been specifically designed for collecting sufficient tissue specimens, clinical studies have indicated no clear difference in diagnostic performance between these novel needles and conventional puncture needles. Recently, a needle with Franseen geometry was developed specifically for EUS-FNA biopsy. Due to the characteristic shape of its tip, the Franseen needle is expected to be effective for scraping tissues, thus potentially increasing the diagnostic accuracy of EUS-FNA biopsy. We plan to carry out a prospective, multicenter, open-labeled, controlled trial to compare conventional and Franseen needles in terms of the diagnostic accuracy of EUS-FNA for evaluating the malignancy of pancreatic mass lesions. METHODS/DESIGN: The study will enroll 520 patients with pancreatic mass managed at any of 21 participating endoscopic centers. Lesion samples obtained using 22G conventional and Franseen needles will be assessed to compare the efficacy and safety of these two types of needles in EUS-FNA for evaluating the malignancy of mass lesions in the pancreas. Tissue samples will be fixed in formalin and processed for histologic evaluation. For the purpose of this study, only samples obtained with the first needle pass will be used for comparing the: (i) accuracy of the malignancy diagnosis, (ii) sensitivity and specificity for the malignancy diagnosis, (iii) procedure completion rate, (iv) sample cellularity, and (v) incidence of complications. Patient enrollment begins on July 17, 2018. DISCUSSION: The outcomes of this study may provide insight into the optimal needle choice for evaluating the malignancy of pancreatic solid lesions, thus aiding in the development of practice guidelines for pancreatic diseases. TRIAL REGISTRATION: University Hospital Medical Information Network Clinical Trials Registry (UMIN-CTR), UMIN000030634. Registered on 29 December 2017. http://www.umin.ac.jp/ Version number: 01.2017.12.28.


Subject(s)
Endoscopic Ultrasound-Guided Fine Needle Aspiration/instrumentation , Needles/adverse effects , Needles/classification , Pancreas/pathology , Pancreatic Neoplasms/diagnosis , Adult , Aged , Aged, 80 and over , Data Accuracy , Female , Follow-Up Studies , Humans , Japan , Male , Middle Aged , Pancreatic Neoplasms/pathology , Prospective Studies , Punctures , Young Adult
11.
Hepatol Res ; 49(2): 232-238, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30198141

ABSTRACT

AIM: Proton pump inhibitors (PPIs) are frequently prescribed in patients with cirrhosis, but this therapy entails potential complications. We aimed to investigate the influence of PPI use on intestinal permeability in patients with cirrhosis. METHODS: We recruited 228 patients with cirrhosis and divided them into four groups. Group (Gp)1 comprised patients receiving a PPI with concurrent neomycin (NEO) (PPI-NEO group, n = 14 [6.1%]), Gp2 and Gp3 comprised those receiving either PPI or NEO (PPI group, n = 91 [39.9%]; and NEO group, n = 11 [4.4%]), and Gp4 comprised those receiving neither of these medications (control group; n = 112 [49.1%]). We assessed the intestinal permeability by measuring endotoxin activity (EA) using a luminol chemiluminescence method. RESULTS: Endotoxin activity levels were significantly higher in patients with Child B cirrhosis than in those with Child A cirrhosis, but we found no significant differences in EA levels between patients with Child C cirrhosis and those with either Child A or B cirrhosis. We observed no significant differences in EA levels among groups 1-4. Patients without antibiotic exposure (n = 203), comprising 91 patients on PPI therapy (Gp2) and 112 no-PPI-therapy controls (Gp4), were subdivided according to Child-Pugh (CP) classification. We found no significant differences in EA levels between Gp2 and Gp4 in either CP class. CONCLUSION: Our results suggest that PPI usage does not have a significant impact on serum levels of gut-derived endotoxins, which are already elevated because of the increased intestinal permeability in patients with cirrhosis.

12.
Nihon Shokakibyo Gakkai Zasshi ; 115(12): 1087-1093, 2018.
Article in Japanese | MEDLINE | ID: mdl-30531115

ABSTRACT

A 59-year-old man had been admitted to our hospital because of general malaise and abdominal fullness caused by massive ascites. He was diagnosed with alcoholic liver cirrhosis. Following the removal of ascites, he was referred to our department because of hematochezia. Emergent colonoscopy revealed the rupture of ascending colonic varices. Endoscopic variceal sclerotherapy using topical skin adhesive (75% Histoacryl) was performed to treat the colonic varices, which proved to be an effective treatment. Enhanced computerized tomography performed 5 days after the treatment of ascending colonic varices showed complete obstruction of the ileocolic varices without complication. It is important to consider the possibility of ectopic varices when a patient with liver cirrhosis reports bloody stool.


Subject(s)
Esophageal and Gastric Varices/therapy , Liver Cirrhosis, Alcoholic/therapy , Sclerotherapy , Adhesives , Esophageal and Gastric Varices/complications , Gastrointestinal Hemorrhage/complications , Gastrointestinal Hemorrhage/therapy , Humans , Male , Middle Aged
13.
United European Gastroenterol J ; 6(9): 1401-1409, 2018 Nov.
Article in English | MEDLINE | ID: mdl-30386613

ABSTRACT

BACKGROUND: Several noninvasive biomarkers are available for diagnosing liver fibrosis stage and predicting hepatocellular carcinoma (HCC) development in patients with chronic hepatitis and liver cirrhosis. However, these biomarkers are not sufficiently accurate. Recently, von Willebrand factor (VWF) has been related to angiogenesis and apoptosis. Furthermore, VWF is associated with hepatic spare ability and HCC. OBJECTIVE: We aimed to determine whether VWF is a potential biomarker for liver fibrosis and HCC development. METHODS: Two hundred and twelve patients with chronic hepatitis B and C were recruited. VWF antigen (VWF: Ag) levels in each patient were determined via enzyme-linked immunosorbent assay. Univariable and multivariable analyses were used to determine the risk factor of HCC. RESULTS: The VWF: Ag levels were higher in patients with severe liver fibrosis stage and/or HCC development than in those without. The area under the curve of VWF: Ag for diagnosis of severe liver fibrosis stage was 0.721. Multivariable analysis showed that only VWF: Ag was a predictive biomarker for HCC development. CONCLUSIONS: VWF: Ag is related to liver fibrosis and may be useful for predicting HCC development. VWF is a potentially useful biomarker to diagnose severe liver fibrosis and predict HCC development.

14.
BMC Cancer ; 18(1): 1164, 2018 Nov 26.
Article in English | MEDLINE | ID: mdl-30477453

ABSTRACT

BACKGROUND: Insulin resistance (IR) is closely associated with the progression of hepatocellular carcinoma (HCC). Acyclic retinoid (ACR) targets retinoid X receptor α and reportedly prevents HCC recurrence in clinical practice. Angiotensin-II receptor blocker (ARB) can also inhibit experimental hepatocarcinogenesis and HCC development. These are reported to suppress IR-based hepatocarcinogenesis; however, limited data are available regarding the combined effects of both these agents. This study aimed to investigate the combined chemopreventive effect of ACR and ARB on liver tumorigenesis on rats with congenital diabetes. METHODS: Male diabetic Otsuka Long-Evans Tokushima Fatty (OLETF) and non-diabetic Long-Evans Tokushima Otsuka (LETO) rats underwent 70% partial hepatectomy following a single intraperitoneal injection of diethylnitrosamine to induce hepatocarcinogenesis and the administration of ACR (peretinoin, 40 mg/kg/day), ARB (losartan, 30 mg/kg/day), and a combination of ACR and ARB. Six weeks thereafter, we assessed the size and number of the pre-neoplastic lesions (PNL) as well as the altered angiogenesis, oxidative stress, and chronic inflammation in the liver. Moreover, we assessed the effects exerted by ACR and ARB on in vitro cell growth in human HCC cell lines and human umbilical vascular endothelial cells (HUVECs). RESULTS: OLETF rats showed increase in the size and number of PNLs compared to LETO rats. ACR suppressed the augmentation in size and number of PNLs in the OLETF rats with suppression of cell growth, intrahepatic angiogenesis, lipid peroxidation, oxidative DNA damage, and proinflammatory cytokine production. Combining ACR with ARB enhanced the tumor-suppressive effect and ameliorated intrahepatic angiogenesis, lipid peroxidation, and proinflammatory status; however, cell growth and oxidative DNA damage remained unchanged. IR-mimetic condition accelerated in vitro proliferative activity in human HCC cells, while ACR inhibited this proliferation with G0/G1 arrest and apoptosis. Furthermore, ACR and ARB significantly attenuated the HUVECs proliferation and tubular formation under the IR-mimetic condition, and a combination of both agents demonstrated greater inhibitory effects on HUVEC growth than each single treatment. CONCLUSIONS: ACR and ARB exert a combined inhibitory effect against IR-based hepatocarcinogenesis by the inhibition of cell growth, intrahepatic angiogenesis, and oxidative stress. Thus, this combination therapy appears to hold potential as a chemopreventive treatment therapy against HCC.


Subject(s)
Angiotensin Receptor Antagonists/pharmacology , Cell Transformation, Neoplastic/chemically induced , Diethylnitrosamine/adverse effects , Liver Neoplasms/chemically induced , Liver Neoplasms/prevention & control , Protective Agents/pharmacology , Tretinoin/analogs & derivatives , Animals , Biomarkers , Cell Line, Tumor , Cell Proliferation/drug effects , DNA Damage/drug effects , Disease Models, Animal , Drug Synergism , Humans , Lipid Peroxidation/drug effects , Liver Neoplasms/metabolism , Liver Neoplasms, Experimental , Male , Oxidative Stress/drug effects , Rats , Rats, Inbred OLETF , Tretinoin/pharmacology
15.
Exp Ther Med ; 16(3): 2743-2750, 2018 Sep.
Article in English | MEDLINE | ID: mdl-30210615

ABSTRACT

Depression is a major reason for interferon (IFN) therapy cessation. IFN-free direct-acting antiviral (DAA) therapy for depression is not well-documented. Thus, four different IFN-free regimens were assessed in genotype-1 hepatitis C virus (HCV) patients with depression. Overall, 287 HCV genotype-1 patients who received combination therapies with IFN-free DAAs of daclatasvir/asunaprevir (DCV/ASV) (n=84), sofosbuvir/ledipasvir (SOF/LDV) (n=95), ombitasvir/paritaprevir/ritonavir (OBV/PTV/r) (n=74), and elbasvir/grazoprevir (EBR/GZR) (n=34) were included. Treatment-induced depression as a complication of HCV therapy in IFN-free DAA regimens was assessed. The severity of depression was evaluated using the Beck Depression Inventory-II (BDI-II) questionnaire. It was demonstrated that all four DAA regimens achieved similar high efficacy in Japanese patients with HCV genotype-1 infection. Moreover, in seven patients with depression who received the 24-week DCV/ASV treatment regimen, the BDI-II scores significantly increased at week 4 as compared with pretreatment values; furthermore, they decreased below baseline at week 12 despite the rapid decline of serum HCV levels after the initiation of DCV/ASV therapy. The BDI-II scores gradually decreased during therapy in the remaining 77 DCV/ASV-treated patients without depression. The BDI-II scores showed a significant decrease from baseline to the end of treatment with 12-week regimens, including SOF/LDV and EBR/GZR. The 12-week DAA regimen of SOF/LDV and EBR/GZR can be safely used with high efficacy in patients with genotype-1 HCV infection, including those with depression.

16.
J Gastrointest Oncol ; 9(4): 741-749, 2018 Aug.
Article in English | MEDLINE | ID: mdl-30151271

ABSTRACT

BACKGROUND: Even though the Barcelona Clinic Liver Cancer (BCLC) staging system is widely accepted, controversies on the management of hepatocellular carcinoma (HCC) still exist. We evaluated the efficacy of an approach with repeated hepatic arterial infusion chemotherapy (HAIC) given at eight-week intervals for the treatment of advanced HCC. METHODS: Of the 66 compensated cirrhotic patients with advanced HCC refractory to transcatheter arterial chemo-embolization (TACE) enrolled in our study, 21 were treated by bi-monthly hepatic arterial infusion chemotherapy (B-HAIC) and the rest by sorafenib. The overall survival periods, curative responses, and adverse events in each group were retrospectively analyzed. RESULTS: The efficacy rate was significantly higher in the B-HAIC group (38%, 11%, P<0.05). The median survival time and the survival rate at 12 months in the B-HAIC group were 567 days and 70.8%, and those in the sorafenib group were 366 days and 47.6%, respectively. Thus, our data suggests that the B-HAIC treatment is not inferior to sorafenib for the treatment of advanced HCC in compensated cirrhotic patients. Furthermore, the occurrence of serious adverse events leading to discontinuation of treatment was less frequent in the B-HAIC group. CONCLUSIONS: Given the hepatic function reserve preservation afforded by the B-HAIC treatment in our experience, we suggest that B-HAIC should be considered an alternative strategy for advanced HCC patients who do not respond to TACE.

17.
Oncotarget ; 9(47): 28638-28651, 2018 Jun 19.
Article in English | MEDLINE | ID: mdl-29983886

ABSTRACT

Recent reports have revealed the impact of a western diet containing large amounts of fructose on the pathogenesis of non-alcoholic steatohepatitis (NASH). Fructose exacerbates hepatic inflammation in NASH by inducing increasing intestinal permeability. However, it is not clear whether fructose contributes to the progression of liver fibrosis and hepatocarcinogenesis in NASH. The aim of this study was to investigate the effect of fructose intake on NASH in a rat model. A choline-deficient/L-amino acid diet was fed to F344 rats to induce NASH. Fructose was administrated to one group in the drinking water. The development of liver fibrosis and hepatocarcinogenesis were evaluated histologically. Oral fructose administration exacerbated liver fibrosis and increased the number of preneoplastic lesions positive for glutathione S-transferase placental form. Fructose-treated rats had significantly higher expression of hepatic genes related to toll-like receptor-signaling, suggesting that fructose consumption increased signaling in this pathway, leading to the progression of NASH. We confirmed that intestinal permeability was significantly higher in fructose-treated rats, as evidenced by a loss of intestinal tight junction proteins. Fructose exacerbated both liver fibrosis and hepatocarcinogenesis by increasing intestinal permeability. This observation strongly supports the role of endotoxin in the progression of NASH.

18.
Nihon Shokakibyo Gakkai Zasshi ; 115(5): 476-484, 2018.
Article in Japanese | MEDLINE | ID: mdl-29743456

ABSTRACT

A 75-year-old female patient with liver cirrhosis and hepatitis C was treated with direct-acting antivirals (DAA) (Sofosbuvir+Ledipasvir). The hepatitis C virus (HCV) -RNA level decreased to negative 4 weeks after the start of the treatment. Six weeks later, she developed ascites and showed declining hepatic spare ability. Accordingly, DAA treatment was stopped. She was started on furosemide 20mg/day and spironolactone 50mg/day. After 7 days, she started taking tolvaptan 7.5mg/day because furosemide and spironolactone proved to be ineffective. This new regimen resolved the ascites. The HCV-RNA level remained negative, although DAA was not restarted. Finally, she achieved a sustained virological response (SVR). The hepatic spare ability at the time of SVR recovered than that at the time of DAA treatment.


Subject(s)
Antiviral Agents/therapeutic use , Hepatitis C/drug therapy , Liver Cirrhosis/virology , Aged , Female , Hepacivirus , Hepatitis C/diagnosis , Hepatitis C, Chronic , Humans , Liver Cirrhosis/drug therapy
19.
BMC Gastroenterol ; 18(1): 16, 2018 Jan 19.
Article in English | MEDLINE | ID: mdl-29351773

ABSTRACT

BACKGROUND: We present the first description of en bloc endoscopic submucosal dissection (ESD) for total circumferential Barrett's adenocarcinoma, predominantly of the long-segment Barrett's esophagus (LSBE), with a 2-year follow-up and management strategies for esophageal stricture prevention. CASE PRESENTATION: A 59-year-old man was diagnosed with LSBE and Barrett's adenocarcinoma by esophagogastroduodenoscopy (EGD). A 55-mm-long circumferential tumor was completely resected by ESD. Histopathology revealed a well-differentiated adenocarcinoma within the LSBE superficial muscularis mucosa. For post-ESD stricture prevention, the patient underwent an endoscopic triamcinolone injection administration, oral prednisolone administration, and preemptive endoscopic balloon dilatation. Two years later, there is no evidence of esophageal stricture or recurrence. CONCLUSIONS: ESD appears to be a safe, effective option for total circumferential Barrett's adenocarcinoma in LSBE.


Subject(s)
Adenocarcinoma/surgery , Barrett Esophagus/complications , Barrett Esophagus/surgery , Endoscopic Mucosal Resection , Esophageal Neoplasms/surgery , Adenocarcinoma/etiology , Adenocarcinoma/pathology , Barrett Esophagus/pathology , Endoscopic Mucosal Resection/adverse effects , Esophageal Neoplasms/etiology , Esophageal Neoplasms/pathology , Follow-Up Studies , Humans , Male , Middle Aged , Recurrence
20.
Hepatol Res ; 48(3): E52-E60, 2018 Feb.
Article in English | MEDLINE | ID: mdl-28628948

ABSTRACT

AIM: Insufficient ADAMTS13 activity (ADAMTS13:AC) leads to increased levels of unusually large von Willebrand factor (VWF) multimers and causes microcirculatory disturbance and multiple organ failure (MOF). Endotoxin (Et) triggers the activation of coagulation and cytokine cascades, leading to MOF in severe inflammatory response syndrome. Here, we investigated the potential role of endotoxemia-related ADAMTS13 in acute cholangitis. METHODS: Twenty-four patients with acute cholangitis, including 7 with severe acute cholangitis, were recruited in this study. The levels of ADAMTS13:AC, VWF antigen (VWF:Ag), interleukin (IL)-6, IL-8, and tumor necrosis factor (TNF)-α in each patient were determined by enzyme-linked immunosorbent assay, whereas Et levels were determined by Et activity assay (EAA) analysis. RESULTS: The ADAMTS13:AC and VWF:Ag levels were significantly lower and higher, respectively, in patients with acute cholangitis than in controls. The EAA levels were higher in patients with acute cholangitis than in controls, and were inversely correlated with that of ADAMTS13:AC. Patients with severe acute cholangitis had significantly lower ADAMTS13:AC and higher VWF:Ag levels than those with mild to moderate cholangitis. Notably, ADMTS13:AC was directly correlated with platelet counts and inversely correlated with IL-6 levels, and the VWF:Ag/ADAMTS13:AC ratio was directly correlated with IL-8 and TNF-α levels. CONCLUSIONS: Imbalance of ADAMTS13:AC and VWF:Ag levels might be associated with severe acute cholangitis, reflecting platelet hyperaggregability. Severe acute cholangitis has severe pathophysiological features and is complicated by endotoxemia and MOF. Notably, this is the first report indicating an association between the levels of ADAMTS13:AC and VWF:Ag and those of EAA and cytokines in acute cholangitis.

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