Publications by authors named "Yamamoto Koji"

Introduction: The number of patients with inflammatory bowel disease (IBD) in Japan has continued to increase, leading to diverse and complex patient backgrounds. Despite these challenges, the education of IBD nurse specialists has not kept pace with the evolving circumstances. Therefore, our research aimed to develop and validate an educational program for the training of IBD nurse specialists.

View Article and Find Full Text PDF

Objectives: Our previous study showed that a high pre-transplant nucleated cell count in the bone marrow is associated with increased non-relapse mortality (NRM) and decreased overall survival (OS) in patients with acute lymphoblastic leukemia (ALL) in remission. In this retrospective multicenter study, we aimed to examine the association between nucleated cell subfractions and transplant outcomes using the same patient cohort as our previous study.

Methods: This study included patients with ALL who underwent their first allogeneic hematopoietic stem cell transplantation (allo-HSCT) between 2010 and 2022.

View Article and Find Full Text PDF

We herein report a case of food-induced small bowel obstruction (FIBO) while using a glucagon-like peptide 1 receptor agonist (GLP1-RA), trying to lose weight due to distorted body image. The patient was a 30-year-old woman who was not obese (height 158 cm, weight 50 kg). She started taking an oral semaglutide, a GLP1-RA, and it was soon switched to weekly subcutaneous semaglutide because of ineffectiveness.

View Article and Find Full Text PDF

Background: Asian individuals often seek solutions to address midface depression and enhance nasal alar base morphology to achieve Western facial aesthetics. Current treatment options, including injections and invasive procedures, have limited efficacy and safety. To address these challenges, we introduced the "modified A-10 surgery," which integrates the Point A-Koji method, titanium plates, and artificial dermis insertion.

View Article and Find Full Text PDF
Article Synopsis
  • - This study aimed to understand how the pressure on lumbar lateral interbody fusion (LLIF) cages relates to surgeons' tactile feedback regarding the strength needed to extract these cages, helping to identify the best cage height.
  • - Researchers conducted experiments on four cadavers to measure stress from cages of different heights (8, 10, and 12 mm) while also evaluating the ease of cage extraction by spine surgeons.
  • - The results showed that higher cage pressures correlated with stronger extraction feedback (loose, appropriate, hard to extract), with significant endplate damage observed, especially when the cage height differed by 4.5 mm or more from the intervertebral disc height.
View Article and Find Full Text PDF
Article Synopsis
  • - This study assessed how effective and safe linaclotide is for treating chronic constipation (CC) and irritable bowel syndrome with constipation (IBS-C) in patients who didn't respond to magnesium oxide.
  • - Conducted over 12 weeks, 61 participants showed significant improvements in quality of life and bowel movement frequency, with noticeable changes in various symptoms measured on standard scales.
  • - The findings suggest that linaclotide could be a viable treatment for elderly patients with CC who haven't had success with traditional treatments, although some experienced diarrhea which was manageable.
View Article and Find Full Text PDF

Importance: The relationship between post-hospital arrival factors and out-of-hospital cardiac arrest (OHCA) outcomes remains unclear.

Objectives: This study assessed the impact of post-hospital arrival factors on OHCA outcomes during the COVID-19 pandemic using a prediction model.

Design, Setting, And Participants: In this cohort study, data from the All-Japan Utstein Registry, a nationwide population-based database, between 2015 and 2021 were used.

View Article and Find Full Text PDF
Article Synopsis
  • * In a case study of an 84-year-old man with diabetes and hypertension, an increase in urinary C-peptide (UCPR) and albumin (UAlb) was observed after ARNI use, which normalized after stopping the medication.
  • * The findings suggest that neprilysin inhibition may enhance glomerular permeability and filtration, prompting caution among physicians when evaluating insulin secretion and nephropathy in ARNI-treated diabetic patients.
View Article and Find Full Text PDF

A 50-year-old man with a triglyceride (TG) level of 11,397 mg/dL was admitted to our hospital. He consumed a high-fat and high-carbohydrate diet as well as more than 100 g of alcohol per day. He had type 2 diabetes and obesity and had previously suffered from severe acute pancreatitis twice.

View Article and Find Full Text PDF

Introduction: This study focuses on developing and validating an e-learning educational program for nurturing inflammatory bowel disease (IBD) nursing specialists.

Methods: The program was developed using the attention, relevance, confidence, and satisfaction models within the instructional design framework. The program validation encompassed four steps: (1) nurses took a basic IBD knowledge test (pretest), (2) participants scoring <80% were encouraged to undergo web-based training, (3) a follow-up test (posttest) gauged post-training improvement, and (4) participant satisfaction with e-learning was assessed.

View Article and Find Full Text PDF

Background: The da Vinci surgical systems (X and Xi) are fourth-generation systems marketed by Intuitive Inc. The X system is less expensive than the Xi system. This study compared the surgical outcomes of patients who underwent hysterectomy using the X and Xi systems.

View Article and Find Full Text PDF

Purpose: This study evaluated the dysregulation of TCF4 isoforms and differential exon usage (DEU) in corneal endothelial cells (CECs) of Fuchs endothelial corneal dystrophy (FECD) with or without trinucleotide repeat (TNR) expansion in the intron region of the TCF4 gene.

Methods: Three RNA-Seq datasets of CECs (our own and two other previously published datasets) derived from non-FECD control and FECD subjects were analyzed to identify TCF4 isoforms and DEU events dysregulated in FECD by comparing control subjects to those with FECD with TNR expansion and FECD without TNR expansion.

Results: Our RNA-Seq data demonstrated upregulation of three TCF4 isoforms and downregulation of two isoforms in FECD without TNR expansion compared to the controls.

View Article and Find Full Text PDF

At the beginning of 2020, coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) led to epidemics worldwide. Obesity and visceral fat accumulation have been reported to be independent risk factors for severe COVID-19. Several reports have focused on the levels of adipocytokines/adipokines, including adiponectin (APN), which is exclusively secreted from adipocytes, although the importance of these factors in acute disease conditions remains unclear.

View Article and Find Full Text PDF
Article Synopsis
  • Various biomarkers have been studied to predict outcomes in allogeneic hematopoietic cell transplantation (HCT), but most prior research focused on single effects rather than a comprehensive analysis of multiple markers.
  • The study surveyed 32 candidate biomarkers from hematological, biochemical, and immunological sources in patients undergoing HCT, aiming to identify those significantly predicting survival and other complications.
  • Results revealed six promising markers, including CRP and IL2R ratios, which were validated internally and shown to reliably predict overall survival, relapse, and non-relapse mortality in the patient population.
View Article and Find Full Text PDF

Esophageal cancer, which is common among the elderly, has the poorest prognosis among gastrointestinal cancers. Previously, we demonstrated that ferrichrome, produced by the probiotic , exhibited anti-tumor effects in various gastrointestinal cancers, including colorectal and gastric cancers, with minimal effects on non-cancerous intestinal cells. However, it remains unclear whether ferrichrome exerts anti-tumor effects in esophageal cancer.

View Article and Find Full Text PDF

Few studies have compared the efficacy of robot-assisted, laparoscopic, and open surgeries for endometrial cancer. When considering the position of robotic surgery in Japan, it was necessary to determine whether it was effective or not. We aimed to compare the efficacy and safety of these three types of surgeries for early-stage endometrial cancer.

View Article and Find Full Text PDF

Phenothiazine cyclic hexamers linked at the 3,7-positions were synthesized. Effects of the cyclic structure as well as substituent effects of the nitrogen atom were disclosed. Furthermore, the cyclic hexamer encapsulated C inside the ring in a 1 : 1 ratio giving a Saturn-type complex in solution.

View Article and Find Full Text PDF

Bladder cancer is the 10th most commonly diagnosed cancer worldwide. The current standard treatment for advanced bladder cancer is neoadjuvant cisplatin (NAC)-based chemotherapy followed by cystectomy. However, the response rate to chemotherapy is only 50%, owing to cisplatin resistance, and there is a need for novel therapies.

View Article and Find Full Text PDF
Article Synopsis
  • A study examined the role of recipient bone marrow nucleated cell count (NCC) before allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with acute lymphoblastic leukemia.
  • Patients were divided into high and low NCC groups based on a cut-off of 10 × 10/µL.
  • Results showed that the high-NCC group experienced significantly worse overall survival (OS) and higher non-relapse mortality (NRM) compared to the low-NCC group.
View Article and Find Full Text PDF
Article Synopsis
  • Nerium oleander is a toxic ornamental shrub that contains a harmful substance called oleandrin, which can lead to fatal consequences if ingested.
  • An 80-year-old man ingested boiled oleander leaf extract in a suicide attempt, resulting in severe heart issues and metabolic complications upon arrival at the emergency room.
  • Despite attempts to treat his critical condition with advanced medical interventions like extracorporeal membrane oxygenation, he ultimately succumbed to poisoning, with oleandrin levels significantly higher than those in prior fatal cases.
View Article and Find Full Text PDF

Refining out-of-hospital cardiopulmonary arrest (OHCA) resuscitation protocols for local emergency practices is vital. The lack of comprehensive evaluation methods for individualized protocols impedes targeted improvements. Thus, we employed machine learning to assess emergency medical service (EMS) records for examining regional disparities in time reduction strategies.

View Article and Find Full Text PDF

Objective: Early recognition of hemostasis is important to prevent trauma-related deaths. We conducted a pilot study of a predictive model of hemostatic need using factors that can be collected during helicopter emergency medical service (HEMS) interventions until transport hospital selection using cases from our institution.

Methods: This single-center, retrospective, observational pilot study included 251 trauma patients aged ≥ 18 years treated with HEMS between April 2017 and March 2022, in Nara Medical University.

View Article and Find Full Text PDF

Mayer-Rokitansky-Küster-Hauser syndrome (MRKHS) is a rare congenital anomaly of the genital tract. Since the secretion of sex hormones from the ovaries is preserved, leiomyomas and adenomyomas, which are estrogen-dependent diseases, may develop from the uterine remnant. In contrast, patients with myotonic dystrophy type 1 (DM1), the most common dystrophy in adults, are considered to be at high risk for benign tumors of the female reproductive system, such as uterine leiomyomas and ovarian cysts.

View Article and Find Full Text PDF

A series of boron difluoride (BF) complexes of azinylcarbazoles 1b-1h were synthesized, and the effects of the structure of azine moieties on the photophysical and electrochemical properties of the BF complexes were clarified. UV-vis analysis of 1b with quinoline, 1c with isoquinoline, and fully fused 1d revealed that fusion with a benzene ring to a pyridylcarbazole BF complex (1a) resulted in red shifts of longest-maximum absorption wavelengths (). UV-vis analysis of 1e and 1f with pyrimidine, 1g with pyridazine, and 1h with pyrazine revealed that substitution of a carbon atom to a nitrogen atom in 1a also resulted in red shifts of .

View Article and Find Full Text PDF