702 results match your criteria: "Kyoto University School of Medicine.[Affiliation]"

Purpose: Circulating tumor DNA (ctDNA) analysis is an alternative to tissue biopsy for genotyping in various cancers. We aimed to establish a plasma ctDNA sequencing assay, then evaluate its clinical utility in advanced urothelial cancer (UC).

Materials And Methods: This study included 82 patients with muscle-invasive or metastatic UC.

View Article and Find Full Text PDF
Article Synopsis
  • The study examined postoperative complication rates in elderly prostate cancer patients undergoing robot-assisted radical prostatectomy (RARP) across various age groups.
  • A total of 8,055 patients were analyzed, revealing similar complication rates for those under 70 and those aged 75 or older.
  • The conclusion indicated that age alone does not significantly increase the risk of complications after RARP in well-selected elderly patients, suggesting that surgery can be safely performed on older populations.
View Article and Find Full Text PDF

, a gram-negative, flagellated, helical bacterium, is a common cause of chronic gastric infection worldwide. According to the World Health Organization, infection, a specific carcinogenic factor, was the leading cause of gastric cancer (GC) in 2014 worldwide (80%). infection causes GC in >98% of patients in East Asian countries, including Japan.

View Article and Find Full Text PDF

Background And Purpose: Carotid artery stenosis, particularly the progression from asymptomatic to symptomatic lesions, is a key factor in cerebrovascular events. This study identifies predictors of symptom development in low-grade carotid stenosis (<50%), focusing on intraplaque hemorrhage (IPH) and dynamic plaque changes.

Materials And Methods: We conducted a retrospective study analyzing 30 cases of symptomatic low-grade carotid stenosis, using carotid MRI before and after symptom onset.

View Article and Find Full Text PDF
Article Synopsis
  • This study aimed to evaluate the effectiveness of artificial intelligence (AI) in helping endoscopists detect esophageal squamous cell carcinoma (ESCC) in a clinical trial, as previous studies were only retrospective.
  • In this randomized controlled trial, high-risk patients were assigned to either an AI-supported group or a control group, with endoscopists utilizing different monitors during screening procedures.
  • Results showed no significant difference in ESCC detection rates between the AI group and the control group, suggesting that the AI system did not improve detection for either non-experts or experts in a clinical setting.
View Article and Find Full Text PDF
Article Synopsis
  • A rare case of spinal epidural arteriovenous fistulas (SEAVFs) with intraosseous shunts was observed in a woman in her 70s who experienced severe weakness and urinary retention due to spinal issues.
  • Imaging revealed spinal cord edema and venous dilation caused by compressed vertebrae, with angiography showing shunts connected to lumbar arteries.
  • Successful treatment involved transarterial embolization, leading to complete closure of the shunt and significant improvement in the patient’s symptoms post-surgery.
View Article and Find Full Text PDF

Background: (), a bacterium which chronically infects the stomach of approximately half the world's population, is a risk factor for the development of gastric cancer (GC). However, the underlying mechanism whereby infection induces GC development remains unclear. Intermittent injection of the cytotoxin-associated gene A antigen (CagA) protein into its host cell inhibits nuclear translocation of BRCA1/BRCA2, DNA repair proteins involved in the development of breast cancer/ovarian cancer.

View Article and Find Full Text PDF
Article Synopsis
  • - Ferroptosis is a type of cell death caused by an excess of lipid hydroperoxides, which are linked to iron and can be prevented by the enzyme GPX4 that detoxifies these compounds.
  • - GPX4 relies on a special amino acid called selenocysteine (Sec), which is produced from selenium, and proper delivery of selenium is essential due to its high reactivity and low availability in cells.
  • - Researchers discovered that the protein peroxiredoxin 6 (PRDX6) plays a crucial role in the synthesis of selenoproteins by enhancing selenium transfer within the cell, with loss of PRDX6 leading to decreased GPX4 levels and increased ferroptosis.
View Article and Find Full Text PDF

Background: The use of life-sustaining treatment (LST) in the final stage of life is a major policy concern due to increased costs, while its intensity does not correlate with quality. Previous reports have shown declining trends in LST use in Japan. However, regional practice variations remain unclear.

View Article and Find Full Text PDF
Article Synopsis
  • Liquid biopsy is a minimally invasive method for detecting cancer-related abnormalities, showing promise especially in prostate cancer and the development of new therapies.
  • There are ongoing challenges in effectively screening, risk stratification, and treatment decisions for advanced prostate cancer that necessitate better biomarkers.
  • The review highlights both the progress and the obstacles in integrating liquid biopsies into clinical practice, focusing on improvements needed in sample handling, data interpretation, and overall implementation for personalized treatment.
View Article and Find Full Text PDF

Myofiber-type-dependent 'boulder' or 'multitudinous pebble' formations across distinct amylopectinoses.

Acta Neuropathol

February 2024

Division of Neurology, Department of Pediatrics, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390-9063, USA.

At least five enzymes including three E3 ubiquitin ligases are dedicated to glycogen's spherical structure. Absence of any reverts glycogen to a structure resembling amylopectin of the plant kingdom. This amylopectinosis (polyglucosan body formation) causes fatal neurological diseases including adult polyglucosan body disease (APBD) due to glycogen branching enzyme deficiency, Lafora disease (LD) due to deficiencies of the laforin glycogen phosphatase or the malin E3 ubiquitin ligase and type 1 polyglucosan body myopathy (PGBM1) due to RBCK1 E3 ubiquitin ligase deficiency.

View Article and Find Full Text PDF
Article Synopsis
  • * Conducted in 20 ICUs across Japan, this randomised controlled trial will compare outcomes for two groups of patients: one with high PEEP settings and another with low PEEP settings (5 cmHO), with a total of 210 participants expected.
  • * The main goal is to measure ECMO-free days by day 28, alongside secondary outcomes like mortality rates and ICU stay length, with ethical
View Article and Find Full Text PDF

EFFECT OF RBD MUTATIONS IN SPIKE GLYCOPROTEIN OF SARS-COV-2 ON NEUTRALIZING IGG AFFINITY.

Georgian Med News

November 2023

1National Hospital Organization Kyoto Medical Center, Kyoto, Japan; 4Department of Obstetrics and Gynecology, Kyoto University School of Medicine, Kyoto, Japan; 5Immediate Past President, Asian Society of Gynecologic Oncology, Tokyo, Japan.

Certain mutant strains of SARS-CoV-2 are known to spread widely among humans, including the receptor binding domain (RBD) mutant, Y453F, from farmed minks, and the RBD mutant, N501Y, a mutation common to three major SARS-CoV-2 subvariants (B.1.1.

View Article and Find Full Text PDF

According to clinical studies, gastrointestinal stromal tumors (GISTs) are predominantly sporadic. GISTs associated with familial syndromes are very rare, and most patients exhibit wild-type KIT and platelet-derived growth factor alpha (PDGFRA). To date, GISTs associated with germline pathogenic variants have been observed in only 30 kindreds worldwide.

View Article and Find Full Text PDF
Article Synopsis
  • Zoledronic acid (ZA) is effective in reducing skeletal-related events (SREs) in lung cancer patients with bone metastases, but the ideal dosing interval remains unclear.
  • A randomized trial compared 4 mg of ZA given every four weeks versus every eight weeks, assessing the time to first SRE and other health indicators over one year.
  • Results showed no significant differences in SRE occurrence or other health measures between the two dosing groups, suggesting an eight-week interval is a safe and viable option for treatment.
View Article and Find Full Text PDF
Article Synopsis
  • - A 34-year-old man with a type of leukemia underwent a stem cell transplant after going into remission, but developed interstitial pneumonia six months later after reducing his cyclosporine A dosage.
  • - Initially treated with prednisolone for his lung condition, he improved temporarily but worsened when the medication was lowered; further tests revealed he had anti-MDA5 antibodies.
  • - A combination therapy of intravenous cyclophosphamide, prednisolone, and cyclosporine A was started, effectively treating his pneumonia, and he ultimately received successful living-donor lung transplants from his siblings.
View Article and Find Full Text PDF

Objective: Owing to the potential benefits of minimally invasive hysterectomy for endometrial cancer, the practice pattern has recently shifted in Japan. This study examined the trends in minimally invasive surgery (MIS) in patients with endometrial cancer in Japan.

Methods: This retrospective observational study examined the Japan Society of Obstetrics and Gynecology Tumor Registry database between 2015-2019.

View Article and Find Full Text PDF

(1) Background/Aim: In clinical practice, uterine lipoleiomyomas are variants of uterine leiomyomas that are often found incidentally and do not require surgical treatment unless the patient is symptomatic. Therefore, these should be clinically differentiated from lesions that need surgical treatment. Conversely, hemangiomas, or blood vessel benign tumors, rarely develop in the uterus; however, many clinical complications such as abdominal pain and excessive vaginal bleeding result from a uterine hemangioma.

View Article and Find Full Text PDF
Article Synopsis
  • Human cytomegalovirus (HCMV) can exacerbate active ulcerative colitis (UC) in patients not responding to standard treatments, and various diagnostic tests (like biopsy and PCR) are commonly used.
  • A study analyzed 82 UC patients, finding that higher HCMV-DNA levels in colonic tissue were linked to positive immunohistochemistry results and antigenemia tests, identifying a specific DNA copy number as a strong predictor for positive results.
  • The findings suggest that both antigenemia assays and histopathological tests can effectively diagnose HCMV colitis in UC patients, with endoscopic evaluations potentially aiding this process.
View Article and Find Full Text PDF

Objective: In symptomatic low-grade stenosis, most of the reports did not clarify the long-term outcome. This study aims to clarify the clinical features and long-term outcomes of symptomatic low-grade stenosis cases.

Materials And Methods: We included 123 symptomatic patients with low-grade (<50%) carotid stenosis.

View Article and Find Full Text PDF

The purpose of this study was to investigate Karnofsky performance status (KPS) scores and visual analogue scale (VAS) scores to explain which domains in the standardized self-reported quality of life (QOL) are instrumental for long-term hematopoietic stem cell transplantation (HSCT) survivors. We conducted a nationwide cross-sectional questionnaire study on 221 survivors with allogeneic-HSCT in 28 pediatric centers. Patient-reported QOL was assessed at a single time point using the 36-item Short-Form Survey (SF-36), the Functional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT), and VAS scores.

View Article and Find Full Text PDF
Article Synopsis
  • A study in Japan analyzed data on pregnancy-associated cervical cancer from 523 hospitals, highlighting the lack of established treatment strategies for this condition.
  • Out of 40 patients diagnosed at 22 weeks of gestation or later, 85% were monitored until delivery without treatment, while 163 diagnosed earlier had mixed outcomes, with some terminating their pregnancies.
  • Various treatments for stage IB1 cervical cancer were assessed, showing no major survival differences, but highlighting concerns like lower birth weights after neoadjuvant chemotherapy and higher full-term delivery rates with trachelectomy.
View Article and Find Full Text PDF

Nonobese diabetic (NOD)/ShiLtJ mice, such as biobreeding rats, are used as an animal model for type 1 diabetes. Diabetes develops in NOD mice as a result of insulitis, a leukocytic infiltrate of the pancreatic islets. The onset of diabetes is associated with moderate glycosuria and nonfasting hyperglycemia.

View Article and Find Full Text PDF