Publications by authors named "Hiroki Tanabe"

Ulcerative colitis (UC) is a chronic inflammatory condition requiring lifelong management, with anti-tumor necrosis factor α (anti-TNF-α) agents often used for refractory cases. However, secondary loss of response (LOR) to these agents, due to anti-drug antibodies, poses a significant therapeutic challenge. This report describes a case where granulocyte and monocyte adsorptive apheresis (GMA) maintenance therapy successfully restored the efficacy of an anti-TNF-α agent in a 26-year-old male with active UC experiencing LOR to infliximab.

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Background: Esophageal squamous cell carcinoma (ESCC) is often managed with surgery, which is the first-line treatment option for stage I-III lesions. However, definitive chemoradiotherapy (dCRT) is associated with a recurrence rate of 30% in stage I ESCC and higher rates in advanced-staged lesions. However, several patients prefer dCRT because their general condition is poor.

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A 73-year-old male patient presented with anemia and was diagnosed with unresectable advanced gastric cancer with distant lymph node metastases. The biopsy specimen showed a poorly differentiated adenocarcinoma. Immunohistochemistry was negative for human epidermal growth factor receptor 2, positive for claudin- 18, and revealed a preserved mismatch repair status.

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Background And Study Aims: To address the challenges of difficult colorectal endoscopic submucosal dissection (ESD), conversion to snare resection (rescue-snare ESD: rSnare), a variant of hybrid ESD, is commonly proposed. However, rSnare is associated with a lower en bloc resection rate compared with conventional ESD. Traction-assisted ESD has emerged as a technique to facilitate dissection, but its effectiveness as a rescue method remains unclear.

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Background: Coracoid transfer is the most common procedure for the treatment of traumatic anterior shoulder dislocations with large glenoid bone defects; however, it is rarely used for the treatment of throwing shoulders because of possible postoperative limited range of motion. This study aimed to evaluate throwing function after coracoid transfer for shoulder instability.

Methods: The study included non-overhead athletes (n = 11; Bristow-Latarjet [BL] group) who suffered shoulder dislocation and underwent coracoid transfer on the dominant side of the shoulder and healthy volunteers (n = 20; C group) from the same population (overall age distribution: 18-22 years).

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To achieve a better understanding of the evolution of the large brain in humans, a comparative analysis of species differences in the brains of extant primate species is crucial, as it allows direct comparisons of the brains. We developed a method to achieve anatomically precise region-to-region homologous brain transformations across species using computational neuroanatomy. Utilizing three-dimensional neuroimaging data from humans (Homo sapiens), chimpanzees (Pan troglodytes), and Japanese macaques (Macaca fuscata), along with the anatomical labels of their respective brains, we aimed to create a cross-species average template brain that preserves neuroanatomical correspondence across species.

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Background: Crohn's disease (CD) is a refractory inflammatory bowel disease with an unclear etiology. CircularRNA (circRNA) has been highlighted as a novel class of functional noncoding RNAs associated with the pathogenesis of various diseases. However, the functions of circRNA in CD remain unclear.

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We report the rare case of severe cognitive disorder and ataxia caused by entrectinib in a patient with NTRK1 fusion gene-positive intrahepatic cholangiocarcinoma. The case was a 56-year-old woman after nine courses of GCS therapy. The patient experienced grade 1 muscle weakness on day 4 and grade 3, cognitive disorder on day 7 after receiving entrectinib, which led to hospitalization.

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Article Synopsis
  • - Familial adenomatous polyposis (FAP) is an inherited condition linked to mutations in the APC gene, leading to many colorectal polyps and a high risk of colorectal cancer, usually diagnosed through colonoscopy.
  • - Recent advancements like whole-genome array comparative genomic hybridization (a-CGH) have improved the detection of genetic imbalances associated with FAP, allowing for more precise patient assessment.
  • - In a study focusing on patients with complete APC gene deletions, researchers found varied genetic loss sizes and identified EPB41L4A as a candidate gene that may be linked to neurodevelopmental issues in some patients.
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We herein present the case of a 30-year-old Japanese male patient with ulcerative colitis (UC) who was admitted to our hospital because of significant ascites. Upon evaluation, the patient was diagnosed with unresectable UC-associated colon cancer (UCAC), localized in the transverse colon. Using gene profiling of the tumor tissue, anti-epidermal growth factor receptor (EGFR) antibody combination chemotherapy was selected.

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Introduction: Unsedated peroral endoscopy, including ultrathin endoscopy (UE) and conventional endoscopy (CE), is feasible in clinical practice but requires improved endoscopic operability and patient tolerance. Currently, the impact of the breathing method on these factors remains unclear. We conducted the first randomized controlled trial comparing oral breathing (OB) and nasal breathing (NB) during both UE and CE to assess their influence.

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Gastric adenocarcinoma of the fundic gland type (GA-FG) is characterized by an elevated lesion with vessel dilation exhibiting branching architecture (DVBA). However, this feature is also found in fundic gland polyps (FGPs), posing a challenge in their differentiation. In this study, we aimed to investigate the clinicopathological features of gastric elevated lesions with DVBA and assess the efficacy of the white ring sign (WRS) as a novel marker for distinguishing between FGPs and GA-FGs.

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Introduction: Carbazochrome sodium sulfonate (CSS) is a hemostatic agent that reduces capillary permeability and enhances capillary resistance. However, its specific effects on colorectal endoscopic submucosal dissection (ESD) outcomes remain uncertain. This study aimed to assess the risk factors for post-ESD bleeding and the effect of CSS on colorectal ESD outcomes.

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Background And Aim: Image enhancement endoscopy techniques, such as linked color imaging (LCI) and autofluorescence imaging (AFI), have shown promise in diagnosing mucosal inflammation in ulcerative colitis (UC). However, no studies have directly compared the diagnostic efficacy of LCI and AFI. This prospective observational study aimed to compare their diagnostic accuracy for histological healing in UC.

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A young patient diagnosed with advanced colon cancer and liver metastasis was found to have familial adenomatous polyposis (FAP) through comprehensive genomic analysis. Whole-genome array comparative genomic hybridization (aCGH) revealed germline deletions at chromosome 5q22.1-22.

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Mucinase consists of some proteases, glycosidases, sulfatases, and sialidases. It is not practical to measure individual enzyme activities when measuring mucinase activity. In this method, mucinase activity is measured using porcine gastric mucin as a substrate and feces as an enzyme source.

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Since the core protein of mucin in the digesta of the stomach and small intestine, which is less affected by bacteria, remains intact, mucin content can be measured by enzyme-linked immunosorbent assay (ELISA). However, the mucin core protein in bacteria-rich colon digesta and feces is partially hydrolyzed by bacterial enzymes and not fully recognized by mucin antibodies, so mucin cannot be accurately quantified by ELISA. This method quantifies the glycan content linked to the mucin core protein and expresses mucin content in the colon digesta and feces as the equivalent of O-linked oligosaccharide chain.

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This study investigated the trends in idiopathic peptic ulcers, examined the characteristics of refractory idiopathic peptic ulcer, and identified the optimal treatment. The characteristics of 309 patients with idiopathic peptic ulcer were examined. We allocated idiopathic peptic ulcers that did not heal after 8 weeks' treatment (6 weeks for duodenal ulcers) to the refractory group and those that healed within this period to the healed group.

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Article Synopsis
  • Brain function research has primarily focused on studying brain regions independently, but the interaction between these regions during tasks like voluntary motion is still poorly understood.
  • This study used fMRI to explore how the motor cortex, cerebellum, and visual cortex interact during target tracking tasks with and without visual feedback.
  • Findings revealed that visual feedback significantly influences connections among these brain regions, which can help explain individual differences in motor performance and may inform the development of personalized interventions in motor control technology.*
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Article Synopsis
  • The text discusses a case of a 71-year-old woman with ulcerative colitis (UC) who was later diagnosed with cardiac sarcoidosis, indicating a link between the two chronic inflammatory diseases.
  • It highlights the potential risk of cardiac sarcoidosis in UC patients and emphasizes the importance of monitoring for symptoms that could indicate this complication.
  • The patient was successfully treated with prednisolone and methotrexate, resulting in the resolution of symptoms and abnormal findings, underscoring the need for regular cardiac evaluations in UC patients.
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Introduction: A remission induction therapy of granulocyte and monocyte adsorptive apheresis (GMA) was given to patients with Crohn's disease (CD). However, establishing an appropriate treatment strategy for GMA in patients with CD remains unclear.

Methods: This study evaluated the clinical efficacy and subsequent clinical progression after GMA in patients with CD who underwent GMA in seven independent institutions in Japan from 2010 to 2023.

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Aims: Lateral femoral cutaneous nerve (LFCN) injury is a potential complication after the direct anterior approach for total hip arthroplasty (DAA-THA). The aim of this study was to determine how the location of the fasciotomy in DAA-THA affects LFCN injury.

Methods: In this trial, 134 patients were randomized into a lateral fasciotomy (n = 67) or a conventional fasciotomy (n = 67) group.

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Article Synopsis
  • * This review highlights recent advancements in DAA techniques and devices, as well as some of its drawbacks, while also discussing its potential future applications.
  • * Expert opinions suggest that incorporating technologies like fluoroscopy, traction tables, robotics, and AI can enhance the efficiency and safety of DAA procedures, positioning it as a leading method for total hip arthroplasty (THA).
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Purpose: In complex and diverse social circumstances, decision making is affected by social feedback. Although previous studies have examined the electrophysiological correlates of social feedback with a binary valence, those related to non-binary feedback, or the magnitude of social feedback, remain unclear. This study investigated the electrophysiological correlates of non-binary social feedback and subsequent action selection processing.

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Matrix metalloproteinases (MMPs) are zinc-dependent metalloproteinases that play important roles in a variety of diseases, including cancer, cardiovascular disease, diabetes, obesity, and brain diseases. Dietary polyphenols are thought to have a variety of beneficial effects on these diseases characterized by inflammation. Clinical studies have demonstrated that MMPs are in most cases upregulated in various inflammatory diseases, including osteoarthritis, rheumatoid arthritis, inflammatory bowel disease, and Alzheimer's disease.

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