Publications by authors named "Satoshi Hara"

Background: In human lupus nephritis (LuN), tubulointerstitial inflammation (TII) is prognostically more important than glomerular inflammation. However, a comprehensive understanding of both TII complexity and heterogeneity is lacking.

Methods: Herein, we used high-dimensional confocal microscopy, spatial transcriptomics and specialized computer vision techniques to quantify immune cell populations and localize these within normal and diseased renal cortex structures.

View Article and Find Full Text PDF

Background: Placental mesenchymal dysplasia (PMD) is a placental abnormality resembling partial hydatidiform moles without trophoblastic proliferation. Although many PMD cases involve androgenetic/biparental mosaicism or chimerism, we recently reported that approximately 30% of cases retain biparental genomes (BiPMD) and exhibit aberrant methylation at multiple imprinted differentially methylated regions (DMRs). This resembles multilocus imprinting disturbances (MLIDs) and biparental hydatidiform moles (BiHMs), which are associated with pathogenic variants in subcortical maternal complex (SCMC) genes.

View Article and Find Full Text PDF

Purpose: We aimed to compare the efficacy and safety of docetaxel plus ramucirumab and atezolizumab as second-line treatment for programmed death-ligand 1 (PD-L1)-negative or low advanced non-small-cell-lung cancer (NSCLC) after platinum-based chemotherapy.

Patients And Methods: This multicenter randomized phase III study enrolled patients with advanced NSCLC who had progressed during or after first-line platinum-based chemotherapy. Patients were allocated randomly (1:1) to receive atezolizumab (arm A) or docetaxel plus ramucirumab (arm B) every 3 weeks.

View Article and Find Full Text PDF

Background: Previously, we reported on osimertinib (OSI) as a first-line treatment for EGFR mutation-positive non-small cell lung cancer (EGFRm+ NSCLC) in a real-world setting. However, owing to the limited observation period, data on overall survival (OS) and long-term safety were not reported. Therefore, in this study, we aimed to assess the long-term efficacy and safety of OSI in patients with EGFRm+ NSCLC.

View Article and Find Full Text PDF

Introduction: Osimertinib is a highly effective first-line treatment for advanced epithelial growth factor receptor (EGFR) mutation-positive non-small cell lung cancer (NSCLC). With its expanded perioperative use, the long-term risk of cardiotoxicity merits investigation. We assessed the occurrence and risk factors of QT prolongation and cardiac dysfunction in patients with NSCLC treated with first-line osimertinib across multiple institutions.

View Article and Find Full Text PDF

Background: Combined chemotherapy with nivolumab and ipilimumab (NIC) improves survival outcomes in treatment-naïve patients with advanced non-small cell lung cancer (NSCLC). However, these patients have a higher incidence of treatment-related deaths (TRDs), especially due to NIC. This study aimed to devise a risk stratification score for selecting patients with lower or higher TRD risk.

View Article and Find Full Text PDF

The expression of imprinted genes in the Dlk1-Dio3 domain is regulated by Dlk1-Meg3 intergenic DMR (IG-DMR), which is methylated in a parental-of-origin-specific manner. An unmethylated 4.1-kb region in the IG-DMR is essential for the maternal allele.

View Article and Find Full Text PDF

Background: In pulmonary vein isolation (PVI) employing a high-power and short-duration (HP-SD) strategy, no consensus exists regarding the optimal settings for radiofrequency application (RFA) to the section of left atrium adjacent to the esophagus (esophageal area, EA).

Objective: To evaluate (1) the efficacy and safety of HP-SD RFA with 50 W for 5 s on the EA, and (2) the predictive factors of esophageal thermal injury (ETI).

Methods: We performed esophagogastroduodenoscopy on 85 patients who had undergone PVI with 50 W RFA.

View Article and Find Full Text PDF

Introduction: A 22-year-old male with no cardiovascular history presented with frequent symptomatic ventricular premature contractions (VPCs) with multiple QRS morphologies despite bisoprolol treatment.

Results: The coupling intervals progressively increased from VPC1 to VPC3, and VPC2 was the most frequent. The earliest activation site was identified at the left-right coronary cusp junction.

View Article and Find Full Text PDF

Purpose: This study was performed to confirm the superiority in overall survival (OS) of EGFR tyrosine kinase inhibitor (TKI gefitinib or osimertinib) monotherapy versus EGFR TKI with intercalation of cisplatin plus pemetrexed as the first-line treatment for patients with advanced non-squamous non-small cell lung cancer (NSqNSCLC) harboring EGFR mutation.

Patients And Methods: This was an open-label, multicenter, randomized phase III study. Patients with chemotherapy-naïve advanced or recurrent NSqNSCLC harboring EGFR mutation (exon 19 deletion or exon 21 L858R point mutation) were randomly assigned (1:1) to EGFR-TKI monotherapy or the EGFR TKI plus intercalated chemotherapy group.

View Article and Find Full Text PDF

TAFRO syndrome is a systemic inflammatory disorder of unknown etiology, and its diagnosis requires the exclusion of autoimmune diseases. A 42-year-old Japanese woman presented with TAFRO syndrome-like manifestations, but had undiagnosed limited-cutaneous systemic sclerosis preventing a definitive diagnosis of TAFRO syndrome. However, her clinical course and pathological findings, including renal glomerular microangiopathy, were consistent with TAFRO syndrome.

View Article and Find Full Text PDF

Introduction: Immunotherapy has transformed the treatment for NSCLC. Nevertheless, reliable biomarkers for treatment selection remain scarce. Gut microbiota has emerged as a potential biomarker, but its role in chemoimmunotherapy for NSCLC is unclear.

View Article and Find Full Text PDF

Background: Evidence regarding the management of left atrial thrombi (LATs) is limited.

Objectives: We aimed to investigate factors associated with subsequent thromboembolism in patients with LATs and explored potential management approaches.

Methods: This multicenter retrospective study consecutively enrolled patients who underwent morphological assessment of LAT using echocardiography.

View Article and Find Full Text PDF

As the application of generative adversarial networks (GANs) expands, it becomes increasingly critical to develop a unified approach that improves performance across various generative tasks. One effective strategy that applies to any machine learning task is identifying harmful instances, whose removal improves the performance. While previous studies have successfully estimated these harmful training instances in supervised settings, their approaches are not easily applicable to GANs.

View Article and Find Full Text PDF

Beckwith-Wiedemann syndrome (BWS) is caused by a gain of methylation (GOM) at the imprinting control region within the Igf2-H19 domain on the maternal allele (H19-ICR GOM). Mutations in the binding sites of several transcription factors are involved in H19-ICR GOM and BWS. However, the responsible sequence(s) for H19-ICR GOM with BWS-like overgrowth has not been identified in mice.

View Article and Find Full Text PDF
Article Synopsis
  • SCLC has traditionally been viewed as a single entity, hindering advances in treatment; however, identifying genetic differences is key to improving patient outcomes.
  • A study analyzed over 1000 SCLC samples using genomic screening to identify five distinct genetic subgroups, which can respond differently to therapies, especially targeted treatments.
  • The findings indicate that while certain subgroups, like the NSCLC and MYC subgroups, have poorer survival rates with standard treatments, others may benefit from specialized therapies, highlighting the importance of personalized medicine in SCLC management.
View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess the safety and efficacy of chemoimmunotherapy in patients with extensive-stage small-cell lung cancer (SCLC) who also had mild interstitial lung disease (ILD).
  • In a trial with 21 patients, a low incidence of pneumonitis was observed, with a severe pneumonitis-free rate of 95.2% and only two patients experiencing pneumonitis during treatment.
  • The findings suggest that chemoimmunotherapy could be a viable treatment option for these patients, with a median overall survival of 10.7 months.
View Article and Find Full Text PDF
Article Synopsis
  • * Factors linked to elevated IgG4 included male sex, older age, lower lipid and polyunsaturated fatty acid intake, and higher carbohydrate intake in both genders, with additional specific associations for men related to kidney function and blood sugar levels.
  • * The findings suggest that elevated serum IgG4 levels are connected to age, gender, and diet, which may reflect similar patterns seen in IgG4-related disease (IgG4-RD).
View Article and Find Full Text PDF

Background: QRS morphology can change during ventricular arrhythmias (VAs) with the appearance of bundle branch block (BBB).

Methods: We retrospectively investigated 195 consecutive patients who underwent an initial ablation of VA. The study inclusion criteria were VAs that were successfully ablated in the outflow tract (OT) and in whom right bundle branch block (RBBB) was induced by catheter manipulation close to the His bundle area during sinus rhythm, before any radiofrequency application.

View Article and Find Full Text PDF
Article Synopsis
  • A phase 3 trial evaluated the effectiveness of adding a CTLA-4 inhibitor to standard platinum-based chemotherapy and PD-1/PD-L1 inhibitors for patients with advanced non-small-cell lung cancer, as no prior studies had focused on this combination's survival benefits.
  • Conducted across 48 hospitals in Japan, the trial involved patients aged 20+ with untreated NSCLC, but had to stop recruitment early due to a concerning number of treatment-related deaths in the nivolumab-ipilimumab group.
  • The final results indicated no significant difference in overall survival between those receiving pembrolizumab and those receiving nivolumab-ipilimumab, with median survival rates of 23.7 months and 20.5
View Article and Find Full Text PDF

Background: The optimal subsequent treatment strategy for locally advanced non-small cell lung cancer (LA-NSCLC) after chemoradiotherapy (CRT) and consolidative durvalumab therapy remains unknown. We aimed to determine the optimal subsequent treatment strategy for this clinical population.

Materials And Methods: We retrospectively enrolled 523 consecutive patients with LA-NSCLC treated with CRT and analyzed the treatment outcomes of subsequent therapy after progression following CRT and consolidative durvalumab therapy.

View Article and Find Full Text PDF

: As COVID-19 can be severe, early predictive markers of both severity and onset of secondary bacterial infections are needed. This study first examined changes over time in the levels of plasma neopterin (NP) and biopterins (BPs), among others, in patients with COVID-19 and then in those with secondary bacterial infection complications. : Fifty-two patients with COVID-19 admitted to two tertiary care centers were included.

View Article and Find Full Text PDF