Publications by authors named "T Chiyoda"

Background: Borderline ovarian tumors (BOTs) differ from ovarian carcinomas in their clinical presentation and behavior, yet their molecular characteristics remain poorly understood. This study aims to address this gap by integrating whole-exome sequencing (WES) and RNA sequencing (RNA-seq) to compare BOTs with high-grade serous carcinoma (HGSC), endometrioid carcinoma (EC), and clear-cell carcinoma (CCC).

Objective: To elucidate the molecular features of BOTs and evaluate their similarities and differences in comparison to HGSC, EC, and CCC.

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Article Synopsis
  • The study aimed to explore the connection between the gut microbiome and the effectiveness of PARP inhibitors in treating ovarian cancer.
  • Researchers analyzed fecal samples and blood for circulating tumor DNA from ovarian cancer patients on PARP inhibitor therapy, comparing microbiome composition and progression-free survival (PFS) between mutation-positive and mutation-negative patients.
  • Findings indicated that in mutation-negative patients, higher levels of certain gut microbes correlated with longer PFS, while no specific gut bacteria showed this association for mutation-positive patients, suggesting different microbiome influences based on genetic mutation status.
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Context.—: Diagnostic strategies for endometrial cancer have been evolving, with cytologic analysis being considered a key method in integrated oncologic diagnostics because of its less invasive nature and adaptability to various assessments. Liquid-based cytology (LBC) has emerged as a promising method for intact DNA preservation; it exhibits improved efficiency in advanced sequencing applications such as next-generation sequencing.

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Background: The adoption of Robotic Pancreaticoduodenectomy (RPD) is increasing globally. Meanwhile, reduced-port RPD (RPRPD) remains uncommon, requiring robot-specific techniques not possible with laparoscopy. We introduce a unique RPRPD technique optimizing surgical field exposure.

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Brain metastasis from ovarian cancer is a very rare condition with a poor prognosis. However, due to its rarity, there is no established treatment strategy. We present a case series of brain metastasis with ovarian cancer, focusing on two long-term survivors treated with multimodal therapy.

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