Publications by authors named "Koh I"

Purpose: This study aimed to investigate whether vitamin K (menatetrenone) suppresses bone mineral density (BMD) loss in the irradiated region after radiotherapy (RT) in uterine cancer patients.

Materials And Methods: Our study included 34 patients who underwent whole pelvic irradiation for uterine cancer between 2001 and 2010. The patients were categorized in two groups: (1) Vitamin K (45 mg/day) administration group (group A) with 18 cases and (2) non-administered group (group B) with 16 cases.

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The unique saddle articulation of the trapeziometacarpal joint allows for a wide range of motion necessary for routine function of the thumb. Inherently unstable characteristics of the joint can lead painful instability. In this study, we modified a surgical dorsal ligament reconstruction technique for restoring trapeziometacarpal joint stability.

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Background: Musculoskeletal (NTM) infections are rare, particularly post-acupuncture therapy, and present diagnostic challenges due to their infrequency and potential severity. Prompt recognition and appropriate management are crucial for optimal outcomes. NTM-infected wounds involving the joints are difficult to treat, and only a few cases have been reported.

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Introduction: With the advancement of porous surface processing technology, cementless total knee arthroplasty (TKA) has once again garnered attention. Cementless TKA lacks cement sealing, raising concerns regarding potential blood loss. Recently, patient blood management (PBM) protocols have been introduced to mitigate postoperative blood loss and transfusions.

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  • Increasing use of cementless total knee arthroplasty (TKA) highlights the need for reliable assessment of bone quality, but the effectiveness of central bone mineral density (BMD) in predicting knee strength is questionable.
  • A study involving 191 knees showed a weak correlation between central BMD and actual bone strength at the knee, particularly poor in patients with osteoporosis.
  • Findings suggest central BMD measurements are not effective for assessing knee bone strength for cementless TKA, indicating a need for better methods to evaluate bone quality.
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  • A study at Kindai University Hospital evaluated the usefulness of autologous blood donation for patients with placental malposition over ten years, focusing on its effectiveness in avoiding allogeneic blood transfusions.
  • Of the 52 patients reviewed, only 9.6% successfully avoided using donated blood from another person, while complications occurred in 15% of donations, although no lasting effects were noted.
  • A systematic review found no scientific evidence supporting the benefit of autologous blood transfusion for this condition, leading to the conclusion that such donations offer minimal advantage.
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  • * A study with 21 families used whole-exome sequencing (WES) to find harmful gene variations in individuals with unexplained RP.
  • * WES identified ten potential disease-causing variants in eight genes, revealing the molecular causes in 8 patients and discovering a new variant that could aid future gene therapy developments.
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Single-cell technologies have enhanced comprehensive knowledge regarding the human brain by facilitating an extensive transcriptomic census across diverse brain regions. Nevertheless, understanding the cellular and temporal specificity of neurological disorders remains ambiguous due to developmental variations. To address this gap, we illustrated the dynamics of disorder risk gene expression under development by integrating multiple single-cell RNA sequencing datasets.

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Anaplastic lymphoma kinase (ALK) is detected in both normal and oncological developmental tissues. Among ALK-related tumors, superficial ALK-rearranged myxoid spindle cell neoplasm (SAMS) is a rare, soft tissue tumor characterized by the immunophenotypical co-expression of CD34 and S100. Here, we describe a patient with this rare tumor and outline its clinical and radiological characteristics.

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Mixed gonadal dysgenesis (MGD) is a disorder of sex development caused by mosaicism of the Y chromosome, represented by 45,X/46,XY. Prophylactic gonadectomy is recommended as soon as possible after its diagnosis, owing to a high risk of malignancy. In the present case, a 21-year-old woman presented with primary amenorrhea.

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catfish, a significant player in the global whitefish market, encounters challenges in aquaculture production sustainability. Quality broodstock maintenance and seed production are impeded by growth, maturation, and fecundity issues. This review investigates the efficacy of strategic nutrient composition and molecular strategies in enhancing broodstock conditions and reproductive performance across various fish species.

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Variants in cis-regulatory elements link the noncoding genome to human pathology; however, detailed analytic tools for understanding the association between cell-level brain pathology and noncoding variants are lacking. CWAS-Plus, adapted from a Python package for category-wide association testing (CWAS), enhances noncoding variant analysis by integrating both whole-genome sequencing (WGS) and user-provided functional data. With simplified parameter settings and an efficient multiple testing correction method, CWAS-Plus conducts the CWAS workflow 50 times faster than CWAS, making it more accessible and user-friendly for researchers.

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Purpose: Comminuted coronal shear fractures of the distal humerus represent rare injuries and are difficult to treat, especially comminuted capitellum and trochlear fractures (Dubberley Type III). The on-table reconstruction technique of comminuted articular fractures may be an option, although it has not been reported in the coronal shear fracture of the distal humerus. The aim of the present case series is to determine the functional and radiological outcomes of on-table reconstructed Dubberley III fractures.

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Purpose: The purpose of this study was to assess whether kinematic alignment (KA) outperforms mechanical alignment (MA) in restoring patellar tracking to native patterns by using a clustering algorithm.

Methods: Twenty cadavers (40 knees) were evaluated. For each cadaver, one knee was randomly assigned to KA and the other to MA.

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Background: Altering wrist biomechanics, Kienbock's disease leads to progressive carpal collapse that results in early arthritis and degenerative changes. By shifting the loading axis toward the radioscaphoid joint, scaphocapitate arthrodesis (SCA) has been reported as a salvage procedure effective in treating symptomatic patients with advanced Kienbock's disease. In this study, we aimed to evaluate the clinical and radiological outcomes of arthroscopic SCA in symptomatic patients with advanced stages of Kienbock's disease.

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Background: Various surgical techniques have been developed to enhance the nose shapes of Asian patients. Silicone implant augmentation rhinoplasty is widely used because it is relatively easy to perform and often yields satisfactory outcomes. However, this technique may lead to complications, including ischemia, necrosis, and over-augmentation.

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Aim: Short tandem repeats (STRs) are repetitive DNA sequences and highly mutable in various human disorders. While the involvement of STRs in various genetic disorders has been extensively studied, their role in autism spectrum disorder (ASD) remains largely unexplored. In this study, we aimed to investigate genetic association of STR expansions with ASD using whole genome sequencing (WGS) and identify risk loci associated with ASD phenotypes.

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Article Synopsis
  • The research explores the link between noncoding genome variants and brain diseases, emphasizing a lack of tools to analyze these connections effectively.
  • A new tool called CWAS-Plus has been developed to enhance the analysis of noncoding variants using whole-genome sequencing and functional data, providing quicker and more efficient results.
  • CWAS-Plus successfully identified significant noncoding variant associations in autism and Alzheimer's disease, showcasing its effectiveness for large-scale genomic studies.
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  • Current glioblastoma (GBM) research lacks standardized in vitro cell culture models, mainly using traditional 2D methods, but glioblastoma tumorspheres (TSs) show promise as a model for drug testing and understanding GBM features.* -
  • The study isolated GBM TSs and extracellular matrices from newly diagnosed patients and tested them on five different culture platforms, finding that the liquid media (LM) method matched the transcriptional characteristics of the original tumors most closely.* -
  • The LM platform is easier and more cost-effective for culturing GBM TSs, retaining tumor characteristics, and has potential for further applications in drug screening and personalized medicine.*
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Aims: The study aimed to assess the clinical outcomes of arthroscopic debridement and partial excision in patients with traumatic central tears of the triangular fibrocartilage complex (TFCC), and to identify prognostic factors associated with unfavourable clinical outcomes.

Methods: A retrospective analysis was conducted on patients arthroscopically diagnosed with Palmer 1 A lesions who underwent arthroscopic debridement and partial excision from March 2009 to February 2021, with a minimum follow-up of 24 months. Patients were assessed using the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire, Mayo Wrist Score (MWS), and visual analogue scale (VAS) for pain.

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Background: Hepatocyte growth factor (HGF) is a cytokine produced in response to endothelial damage. Higher levels correlate with cardiovascular risk factors, including hypertension and diabetes.

Objectives: We hypothesized that HGF is associated with stroke.

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Orbital floor fractures are commonly encountered, but the dislocation of the eyeball into the maxillary sinus is relatively rare. When it does occur, globe dislocation can have serious consequences, including vision loss, enucleation, and orbito-ocular deformity. Immediate surgical intervention is typically attempted when possible.

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Triceptides are cyclophane-containing ribosomally synthesized and post-translationally modified peptides. The characteristic cross-links are formed between an aromatic ring to Cβ on three-residue Ω1X2X3 motifs (Ω1 = aromatic). Here, we explored the promiscuity of the XYE family triceptide maturase, XncB from DSM 3370.

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The development of sperm cryopreservation for Pangasius nasutus is necessary in order to serve the growing demand of this species through artificial fertilization and the preservation of valuable strains of male broodstocks. In the present study, the basic protocol of sperm cryopreservation for P. nasutus was established by identifying the optimal conditions for optimum cryoprotectant, toxicity of cryoprotectants, extenders, freezing condition and dilution ratio.

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With the advent of increasingly sophisticated organoids, there is growing demand for technology to replicate the interactions between multiple tissues or organs. This is challenging to achieve, however, due to the varying culture conditions of the different cell types that make up each tissue. Current methods often require complicated microfluidic setups, but fragile tissue samples tend not to fare well with rough handling.

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