Takashi Joh's research while affiliated with Nagoya City University and other places

Publications (587)

Article
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Endoscopic ultrasonography-guided hepaticogastrostomy (EUS-HGS) has emerged as an alternative drainage technique for patients with malignant biliary obstruction. However, few reports have discussed the occurrence of late-onset rupture of hepatic artery pseudoaneurysms following EUS-HGS. A recently available drill dilator equipped with a long screw...
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A 44-year-old woman who had been diagnosed with ulcerative colitis (UC) at 22 years old was diagnosed with severe flare-up of UC based on endoscopic findings associated with new-onset active pyoderma gangrenosum (PG) on both lower legs after she decided to discontinue UC treatment. Systemic treatment with intravenous prednisolone at 30 mg/day had a...
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Background/aims: Colorectal adenomas are precursor lesions of globally increasing colorectal cancer. Hence, a high adenoma detection rate in colonoscopy is pivotal. We investigated the clinical impact of stratified colonoscopy observation time combined with observation time/intubation time ratio on the detection of colorectal adenomas. Materials...
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Background and study aims Wire-guided biliary cannulation (WGBC) is a standard technique during endoscopic retrograde cholangiopancreatography-related interventions. However, no dedicated guidewire is available. We investigated a novel “passive loop-forming WGBC” concept using a 0.035-inch ultra-deep angled tip guidewire. Patients and methods This...
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Patients with stage IV gastric cancer suffer from dismal outcomes, a challenge especially in many Asian populations and for which new therapeutic options are needed. To explore this issue, we used oncolytic reovirus in combination with currently used chemotherapeutic drugs (irinotecan, paclitaxel, and docetaxel) for the treatment of gastric and oth...
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Objective The 2018 Tokyo Guidelines (TG18) were published to facilitate the decision-making processes (DMP), including the diagnosis and operation of acute cholecystitis (AC). However, only a few guidelines consider older adults. This study evaluated the DMP based on the TG18, focusing on older patients with AC. Methods This was a single-armed, sin...
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A 44-year-old woman who had been diagnosed with palmoplantar pustulosis (PPP) at 34 years old was diagnosed with moderate Crohn's disease (CD) based on endoscopic, radiological, and pathological findings. As treatment with corticosteroids, ultraviolet, and cyclosporin had achieved partial response, PPP had been refractory in a chronic continuous st...
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Every-week (ew) adalimumab (ADA) maintenance following induction therapy with a standard induction regimen has recently been approved for use in Japan. The efficacy and safety of combination therapy with ew-ADA maintenance following standard induction regimen plus intensive granulocyte and monocyte adsorptive apheresis (GMA) (two sessions/week) for...
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Background and aim: Patients with gastroesophageal reflux disease (GERD) frequently also have functional dyspepsia (FD) symptoms, which impair their quality of life. However, the magnitude and characteristics of the effects of each symptom on daily life have been unclarified. Using multiple regression analysis, we aimed to clarify these questions....
Article
Background: Although anxiety and depression status is considered related to gastroesophageal reflux disease (GERD) and functional dyspepsia (FD) symptoms, ambiguity primarily arises from the difficulty in determining their cause-effect relationships. We aimed to examine the longitudinal reciprocal causation between anxiety/depression status and GE...
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A transoral endoscopic ultrasound-guided fine-needle aspiration biopsy (EUS-FNAB) is a well-established tissue-sampling method. However, performing a transanal EUS-FNAB remains challenging. Uterine morcellation has emerged as a minimally invasive approach for benign tumor treatment. However, uterine myomas are heterogeneous and include malignant an...
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Non-erosive reflux disease (NERD) is classified into grade N (no minimal change) and grade M (minimal change) based on the Los Angeles classification. However, few reports have described the clinical characteristics of grade M. This study was performed to clarify the clinical characteristics of grade M. Among 290 consecutive patients with gastroeso...
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Background/aims: Although risk factors of reflux esophagitis (RE) have been investigated in numerous cross-sectional studies, little is known about predictive factors associated with future onset of RE. We investigated time courses of clinical parameters before RE onset by a longitudinal case-control study using health checkup records. Methods:...
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Objectives: Esophagogastroduodenoscopy (EGD) is a widely used modality for investigating the upper gastrointestinal (GI) tract, similar to endoscopic ultrasonography (EUS) for the pancreaticobiliary system. A recent and novel forward-viewing radial EUS has potential as an EGD. However, this potential has not yet been evaluated and reported in the...
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Background Functional dyspepsia (FD) is a disorder that presents with chronic dyspepsia, which is not only very common but also highly affects quality of life of the patients. In Japan, FD became a disease name for national insurance in 2013, and has been gradually recognized, though still not satisfactory. Following the revision policy of Japanese...
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Endoscopic transpapillary gallbladder drainage is an alternative procedure for patients with acute cholecystitis. However, this procedure is technically challenging because the drainage stent is sometimes obstructed by an impacted cystic duct stone, even if the guidewire is advanced into the gallbladder. In this report, the front end of a standard...
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Gastric gastrointestinal stromal tumors can lead to upper gastrointestinal hemorrhaging, which is usually caused by dimpling or ulceration on the tumor surface. While rare, pedunculated gastric gastrointestinal stromal tumors outside the stomach can present as a huge mass with delayed complaints. We herein report an unusual hemorrhaging mimicking a...
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Reflux esophagitis is known to be more prevalent in males, and previous studies have suggested sex differences in its risk factors. However, little is known about sex differences in the time-course of risk factors before reflux esophagitis onset. Thus, we conducted a retrospective longitudinal study using health checkup records. From the records of...
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Background and Aim In patients with severe erosive reflux disease (ERD; Los Angeles classification grade C/D) who do not undergo endoscopic examination, insufficient strength and duration of proton pump inhibitor (PPI) therapy may lead to complications such as esophageal bleeding and stenosis. Therefore, to provide a safe and effective treatment fo...
Article
Background In recent years, the prevalence of proton pump inhibitor (PPI)-refractory gastroesophageal reflux disease (GERD) has been increasing, posing a clinical obstacle to improving the management of GERD patients. The ability of known predictive factors to explain therapeutic response to PPI remains insufficient. Therefore, we examined whether...
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Eukaryotic translation initiation factor 3 subunit D (EIF3D) binds to the 5'-cap of specific mRNAs, initiating their translation into polypeptides. From a pathological standpoint, EIF3D has been observed to be essential for cell growth in various cancer types, and cancer patients with high EIF3D mRNA levels exhibit poor prognosis, indicating involv...
Article
Background and aim Gastroesophageal reflux disease (GERD) and functional dyspepsia (FD) are frequently overlapped. However, no treatment strategies have been established yet for such patients. This study compared the effects of proton pump inhibitor (PPI) treatment in patients with GERD-associated FD among three groups with varying severity levels...
Chapter
EUS is an important procedure for the differential diagnosis of type 1 autoimmune pancreatitis (AIP) from other pancreatic diseases because IgG4-SC is often associated with type 1 AIP. Bile duct wall thickening is considered the EUS finding of IgG4-SC with type 1 AIP. Cholangiocarcinoma (CCA) and primary sclerosing cholangitis (PSC) are important d...
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Background Endoscopic resection is recommended for rectal neuroendocrine tumors < 1 cm in diameter; the three techniques (mucosal resection, submucosal dissection, and mucosal resection with variceal ligation device) of endoscopic resection of neuroendocrine tumor were reported; however, the optimal endoscopic technique remains unclear. Purpose We...
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Purpose Self-expandable metallic stents (SEMSs) may be used to effectively palliate malignant gastric outlet obstructions (GOOs), but their utility and efficacy in patients under best supportive care (BSC) have not been explored. Method In this multicenter retrospective study, we reviewed data on patients under BSC who underwent endoscopic SEMS pl...
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Type 1 autoimmune pancreatitis (AIP) is a pancreatic manifestation of IgG4-retated disease that is often associated with IgG4-related sclerosing cholangitis (IgG4-SC). Autoimmune hemolytic anemia (AIHA) is an immune-related disease that causes hemolytic anemia. Although type 1 AIP/IgG4-SC and AIHA have a shared etiology as a presumed autoimmune dis...
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We report of a case of Graves’ ophthalmopathy presented solely with symptoms of the eyes with normal thyroid function tests and negative immunoreactive TSH receptor autoantibody. 40-year-old male was referred to our hospital due to 2-month history of ocular focusing deficit without any signs or symptoms of hyper- or hypothyroidism. Serum thyroid fu...
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Purpose: Since oncological outcomes of transanal colorectal tube (TCT) placement, an endoscopic treatment for colorectal cancer (CRC) with acute colorectal obstruction (ACO), remain unknown, this study analyzed long-term outcomes of TCT placement for stage II/III CRC with ACO. Material and methods: Data were retrospectively reviewed from consecu...
Article
Ustekinumab is applied to induce clinical remission in patients with Crohn's disease. Granulocyte and monocyte absorptive apheresis depletes activated myeloid lineage leukocytes and has been applied for active Crohn's disease. This study retrospectively examined the efficacy and safety of combining intensive granulocyte and monocyte absorptive aphe...
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The clinical efficacy and outcomes of pazopanib treatment for metastatic extraosseous Ewing sarcoma remain unclear. We herein report a case of heavily pre-treated metastatic extraosseous Ewing sarcoma in which pazopanib treatment achieved a significant improvement. A 17-year-old girl was referred to our hospital due to metastatic extraosseous Ewing...
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We herein describe a case of pulmonary tumor thrombotic microangiopathy (PTTM) with rapidly progressing colon cancer. A 61-year-old man who had been receiving treatment for type 2 diabetes mellitus for 3 years was hospitalized due to critical hypoxemia. Computed tomography, which had not shown any abnormalities 3 months previously, revealed a tumor...
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Endoscopic transpapillary brush cytology and forceps biopsy during endoscopic retrograde cholangiopancreatology are generally used to obtain pathological evidence of biliary strictures. Recently, the new endoscopic scraper Trefle® has been reported and demonstrated high cancer detectability in malignant biliary strictures. This device is used to sc...
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Objective: Guidelines on the management of antithrombotic therapy for endoscopic procedures vary among countries. Differences in the management of antithrombotic agents for endoscopic procedures between Western and Eastern countries have already been reported. However, no study has investigated the differences among Asian countries. The aim of thi...
Article
Herein, we describe a rare case of refractory gastric antral ulcers. A woman in her 50 s was admitted to Nagoya City University Hospital with epigastric pain after being diagnosed with gastric antral submucosal tumor at another hospital. Findings from esophagogastroduodenoscopy and endoscopic ultrasound examination revealed that the lesion was a ga...
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We report the case of a 71-year-old man with afferent loop obstruction (ALO) after Roux-en-Y reconstruction due to gastric cancer. Computed tomography showed a distended afferent loop and a dilatated bile duct. We could not reach the stricture site in the afferent loop using a gastroscope. We performed percutaneous transhepatic biliary drainage (PT...
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Cancer is one of the major causes of death in diabetic patients, and an association between antidiabetic drugs and cancer risk has been reported. Such evidence implies a strong connection between diabetes and cancer. Recently, glucagon has been recognized as a pivotal factor implicated in the pathophysiology of diabetes. Glucagon acts through bindi...
Article
Background: Photodynamic therapy (PDT) exploits the reaction between photosensitizer and irradiated light to generate potentially therapeutic reactive oxygen species such as singlet oxygen in cancer cells. We have reported several sugar-conjugated chlorins that express stronger antitumor effects in PDT than talaporfin sodium (TS), a second-generat...
Article
Background: Fluorescence in situ hybridization (FISH) of cytology specimens has been used to diagnose biliary strictures. However, the usefulness of FISH for differentiating between cholangiocarcinoma (CCA) and IgG4-related sclerosing cholangitis (IgG4-SC) has not been evaluated in forceps biopsy specimens. Methods: We retrospectively reviewed 7...
Article
The combined administration of nab-paclitaxel and gemcitabine (nab-P + Gem) is a standard chemotherapy for unresectable pancreatic ductal adenocarcinoma (UR-PDAC); thus, a predictive biomarker to identify patients best suited for nab-P + Gem therapy would be useful. Class III β-tubulin (TUBB3) has been reported to be a predictive marker for taxane...
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Imatinib, a multitargeted receptor tyrosine kinase inhibitor, is used as the standard initial therapy against inoperable gastrointestinal stromal tumor (GIST). However, GIST can acquire resistance to imatinib within several years of therapy. The development of oncolytic reovirus as an anticancer agent has expanded to many clinical trials for variou...
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Angiogenesis, the formation of new blood vessels from the pre-existing vasculature, is related to numerous pathophysiological events. We previously reported that a RING ubiquitin ligase complex scaffold protein, cullin-3 (CUL3), and one of its adaptor proteins, BAZF, regulated angiogenesis in the mouse retina by suppressing Notch signaling. However...
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Background Endoscopic metallic stenting is widely accepted as a palliation therapy for malignant gastric outlet obstruction (GOO). However, the predictors of stent dysfunction have not been clarified. We aimed to evaluate the predictors, especially tumor ingrowth in uncovered self-expandable metallic stents (U-SEMS) and migration of covered self-ex...
Article
Background: Endoscopic biliary and duodenal stenting (DS; double stenting) is widely accepted as a palliation therapy for malignant bilioduodenal obstruction. The aim of the current study was to investigate the patency and adverse events of duodenal and biliary stents in patients with DS. Methods: Patients who underwent DS from April 2004 to Mar...
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There have been few reports on 2 tumor necrosis factor alpha inhibitors, infliximab and adalimumab, with respect to patient preference and efficacy in ulcerative colitis (UC). We used questionnaires to evaluate the preference and reasons for drug choice between infliximab and adalimumab in UC patients naive to antitumor necrosis factor alpha therap...
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AIM To evaluate the psychometric properties of a newly developed questionnaire, known as the gastroesophageal reflux and dyspepsia therapeutic efficacy and satisfaction test (GERD-TEST), in patients with GERD. METHODS Japanese patients with predominant GERD symptoms recruited according to the Montreal definition were treated for 4 wk using a stand...
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AT motif binding factor 1 (ATBF1) is a transcriptional regulator that functions as a tumour suppressor to negatively affect cancer cell growth. In the present study four specific polyclonal antibodies against ATBF1 were generated, and the expression and intracellular localization of ATBF1 in colonic mucosae, polyps, adenoma and adenocarcinoma tissu...
Article
Backgrounds and aims: Chronic hepatitis B virus (HBV) infection is an important worldwide public health issue. Further knowledge on the characteristics of HBV will facilitate its eradication. Genome structural variations (SVs) are defined by its canonical form such as duplication, deletion, and insertion. However, recent studies have reported comp...
Article
Photodynamic therapy (PDT) is a non-invasive antitumor treatment that uses the combination of a photosensitizer, tissue oxygen, and visible light irradiation to produce cytotoxic reactive oxygen species, predominantly singlet oxygen. Currently, first-generation PDT using porfimer sodium with an excimer dye laser, and second-generation PDT using tal...
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The current imaging modalities are not sufficient to identify inoperable tumor factors, including distant metastasis and local invasion. Hence, we conducted this study using urine samples to discover non-invasive biomarkers for the incurability of gastric cancer (GC). Urine samples from 111 GC patients were analyzed in this study. The GC cohort was...
Article
Peritoneal dissemination is a major clinical issue associated with dismal prognosis and poor quality of life for patients with pancreatic cancer; however, no effective treatment strategies have been established. Herein, we evaluated the effects of photodynamic therapy (PDT) with maltotriose-conjugated chlorin (Mal3-chlorin) in culture and in a peri...
Article
A 23-year-old man was diagnosed with a giant pelvic paraganglioma in September 2013, and a 6-month chemotherapy course was performed. The chemotherapy resulted in stable disease of the tumor for about 1 year. However, in April 2015, the patient complained of fever and diarrhea of more than ten times a day. Endoscopy showed serpiginous (snake-like)...
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The aims of this study were to compare the therapeutic effects of a proton pump inhibitor (PPI), rabeprazole (RPZ), and a prokinetic agent, itopride (ITO), and to investigate the role of PPI in the treatment strategy for Japanese functional dyspepsia (FD) patients. We randomly assigned 134 patients diagnosed by Rome III criteria to 4 weeks treatmen...
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Vascular endothelial cell growth factor receptor 2 (VEGFR2) is an essential receptor for the homeostasis of endothelial cells. In this study, we showed that NEDD8-conjugated Cullin3 (CUL3)-based ubiquitin E3 (UbE3) ligase plays a crucial role in VEGFR2 mRNA expression. Human umbilical vein endothelial cells treated with MLN4924, an inhibitor of NED...
Data
Fig. S1. Detection of vascular endothelial (VE)‐cadherin in chloroquine‐treated Cullin 3 (CUL3)‐depleted HUVECs. HUVECs were treated with control siRNA (left lane), CUL3 siRNA (middle lane), and CUL3 siRNA + chloroquine (5 μg/mL; right lane). Cells were harvested 72 h after transfection, and proteins were analyzed by Western blotting with anti‐VE‐c...
Data
Fig. S2. Detection of vascular endothelial (VE)‐cadherin in epoxomicin‐ or MG132‐treated HUVECs. HUVECs were treated with 1 μM epoxomicin or MG132 for 8 h. Cells were harvested and proteins were analyzed by Western blotting with anti‐VE‐cadherin and anti‐Cullin 3 antibodies. Anti‐β‐actin antibody was used as an internal control.
Article
Background: Recent studies have highlighted the relationship between gut microbiota and bowel movements. Objective: We aimed to evaluate transglucosidase treatment efficacy for bowel movements in patients with type 2 diabetes mellitus and to clarify the relationship between bowel movements, dietary habits, gut microbiota and fecal short-chain fa...
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AIM To assess the clinical characteristics of patients with complicated erosive esophagitis (EE) and their associated factors. METHODS This prospective, cross-sectional study included patients diagnosed with EE by upper gastrointestinal endoscopy between October 2014 and March 2015 at 106 Japanese hospitals. Data on medical history, general condit...
Article
Background: Diagnostic and therapeutic strategies in inflammatory bowel disease (IBD) vary among countries in terms of availability of modalities, affordability of health care resource, health care policy and cultural background. This may be the case in different countries in Eastern Asia. The aim of this study was to determine and understand the...
Article
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Vascular endothelial-cadherin, a major endothelial adhesion molecule, regulates vascular permeability, and increased vascular permeability has been observed in several cancers. The aim of this study was to elucidate the role of the NEDD8-Cullin E3 ligase, in maintaining barrier permeability. To this end, we investigated the effects of the inhibitio...
Article
Objectives: In recent years, knowledge concerning the mechanical properties of self-expandable metallic stents (SEMS) has increased. In a previous study, we defined traction force and traction momentum and reported that these characteristics are important for optimal stent deployment. However, traction force and traction momentum were represented...
Article
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Background/aim: Resistance against cisplatin is a problem for the success of gastric cancer chemotherapy. Herein, we evaluated the antitumor effect of a new aminosugar-conjugated, mono-functional platinum complex (Pt-Oqn), which forms a single covalent bond with DNA. Materials and methods: We compared the cytotoxicity of Pt-Oqn to that of cispla...
Article
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Background/aims: Self-expandable metallic stent (SEMS) placement is effective for dysphagia that results from malignant obstruction of the esophagus or gastric cardia; however, stent-related complications may be life-threatening. Thus, the goal of this study was to identify risk factors associated with complications following esophageal stenting....
Data
Quality control call rate for genome-wide association study samples divided into cases and controls. (DOCX)
Data
Principal component analysis (PCA) plots and Quantile-quantile (QQ) plots for GWAS samples. (a) PCA plots for GWAS samples. (b) QQ plots of the observed versus the expected P-values for each samples. (PDF)
Data
History of depression according to rs1863918 genotypes. (PDF)
Data
Regional Manhattan plots around SNPs with P<10−4 obtained by SNP imputation. SNP imputation for the genetic regions including SNPs with P<10−4 at GWAS identified 3 SNPs with P<10−4 as follows: (a) rs1863918, (b) rs3797590 and (C) rs4904887. (PDF)

Citations

... Next, we advanced a bicolored DPPS made of polyethylene and nylon comprising an inner sheath (Piglet, 7F, 4 cm; Olympus Medical, Tokyo, Japan) under endoscopic visualization of a yellow-to-black demarcation (▶ Fig. 2). Finally, we deployed the DPPS (▶ Fig. 3) after aspiration/irrigation of the infected bile without complications [5]. ...
... Finally, if our proposal that cellular stemness modulates reoviral oncolysis is correct, we are left with the challenge of reconciling this explanation with that of Lee's group, which earlier posited a critical role for Ras pathway activation in promoting reoviral oncolysis . As we and others have observed (see our accompanying manuscript [94]), the correlation between Ras activation and reoviral activity is good but imperfect, with many exceptions. Thus we are led to speculate that cells able to adapt to chronic Rasmediated signalling may become cancerous, in part, by sometimes activating stemness pathways that also confer reoviral susceptibility. ...
... Recent clinical data have shown promising results in IBD treatment through the combination of Granulocyte-Monocytes Apheresis with certain pharmacological agents. [1][2][3][4] This emerging evidence highlights the potential efficacy of monocytes-based interventions in IBD, despite the absence of well-established therapeutic guidelines. Moreover, extensive basic research has elucidated the pivotal role of monocytes in the pathogenesis and progression of IBD. ...
... These patients may have their symptoms exacerbated by probe placement and are subsequently less likely to tolerate HRM testing. Although anxiety and depression have also been linked to a history of functional dyspepsia, [11] neither of these conditions was independently associated with failed HRM in our study. It is possible that medically optimizing foregut symptoms prior to HRM may enhance the success rate, although this requires further study. ...
... NERD and FD are diagnosed if one or more of the above symptoms appear for at least 3 months, and the symptoms are detected 6 months before the diagnosis [1,4]. ...
... Possible explanations for this association include increased abdominal pressure due to obesity, more frequent relaxation of the lower oesophageal sphincter leading to acid reflux, and fat accumulation at the gastroesophageal junction [21]. additionally, studies have suggested that conditions like hyperlipidaemia, diabetes, and hypertension can lead to reduced oesophageal peristalsis, inhibited contraction of the lower oesophageal sphincter [22,23], and ultimately contribute to the development of Re [24,25]. the present study also observed a higher prevalence of metabolic syndrome components among the Re group in contrast with the control group, suggesting that actively managing these components may benefit patients with Re [26]. ...
... Although EUS is peroral endoscopy, the dedicated EUS scope is not suitable for upper GI screening for the following two reasons: first, the dedicated EUS scope is commonly an oblique-viewing endoscope. Second, the dedicated EUS scope, even the forward-viewing EUS scope, reportedly has low depictability [9]. Therefore, a separate EGD, not an EUS scope, is necessary for screening the upper GI tract in patients with pancreaticobiliary disease. ...
... Multiple studies have reported low yields of gastroscopy when evaluating patients with dyspepsia or refux-related symptoms who are less than 50 years old and otherwise healthy [7,8]. Tese fndings have led society guidelines to recommend avoiding routine gastroscopy in dyspeptic patients under 60, with the consideration of endoscopy in younger patients with dyspepsia on a caseby-case basis, without automatic consideration due to alarm features [9,10]. ...
... The inclusion criteria were as follows: (i) age > 20 years and (ii) blood sampling after at least a 10-h overnight fast. The exclusion criteria were as follows: (i) patients who were administered magnesium [11], (ii) patients who were administered diuretics [12], and (iii) patients with confirmed malignancy [13]. ...
... e application of endoscopic-assisted treatment of gastric mucosal micromasses is still controversial [14]. In summary, it is particularly important to pay attention to the endoscopic treatment of gastric mucosal microtumors [15]. ...