Publications by authors named "Yoshida Chihiro"

Article Synopsis
  • The study examined social attention in male C57BL/6 J mice, specifically focusing on how prenatal exposure to valproic acid (VPA) affects their behavior towards other mice in a reaching task setup.
  • Pregnant mice were either given VPA or a saline solution, and researchers measured how well the offspring paid attention to social interactions during these tasks while controlling for sniffing behavior in an open field.
  • Results showed that mice exposed to VPA displayed significantly less attention in face-to-face situations compared to when they weren't paying attention, indicating that VPA may impact social focus in the ASD model.
View Article and Find Full Text PDF

Tracheal injury during mediastinoscopic esophagectomy is a life-threatening complication that is challenging to manage. However, no precise treatment has been defined. An 80-year-old male patient with upper esophageal cancer underwent a mediastinoscopic esophagectomy and gastric tube reconstruction through the posterior mediastinal route.

View Article and Find Full Text PDF

Pulmonary metastasectomy in colorectal cancer (CRC) has encouraging results; however, specific criteria for lung resection and the timing of resection remain undetermined. Therefore, in this study, we aimed to examine the long-term prognosis and 10-year survival rates and analyze poor prognostic factors in patients who underwent resection of pulmonary metastases from CRC. This retrospective, single-institution study included 156 patients with controlled primary CRC and metastases confined to the lungs or liver who underwent pulmonary metastasectomy between 2005 and 2022.

View Article and Find Full Text PDF

Background/aim: Prognostic indicators for postoperative lung adenocarcinoma are elusive. The interaction between CD24 on tumor cells and sialic-acid-binding Ig-like lectin 10 (Siglec10) on tumor-associated macrophages (TAMs) is implicated in immune evasion in distinct tumors. However, the therapeutic significance of phagocytic checkpoints in lung adenocarcinoma remains unknown.

View Article and Find Full Text PDF
Article Synopsis
  • Maternal heart rate (HR) influences birth weight and outcomes, with low birth weight being a significant global health issue affecting 15-20% of births.
  • The study proposes a new parameter based on maternal and fetal heart rate variability (HRV) to explore its relationship with fetal birth weight, derived from non-invasive electrocardiogram data of 78 pregnant subjects.
  • Results indicate that the newly developed parameter shows a significant correlation with gestational age, revealing negative associations with birth weight in certain patterns, underscoring the importance of maternal health in assessing fetal development.
View Article and Find Full Text PDF

Background/aim: The (pro)renin receptor [(P)RR] plays a role not only in cardiovascular and renal diseases, but also in tumorigenesis. (P)RR contributes to the activation of the Wnt/β-catenin signaling pathway, independent of the renin-angiotensin system. Accumulating evidence has shown that (P)RR is expressed in various human cancers.

View Article and Find Full Text PDF

Previous literature has highlighted the importance of maternal behavior during the prenatal period for the upbringing of healthy adults. During pregnancy, fetal health assessments are mainly carried out non-invasively by monitoring fetal growth and heart rate (HR) or RR interval (RRI). Despite this, research entailing prediction of fHRs from mHRs is scarce mainly due to the difficulty in non-invasive measurements of fetal electrocardiogram (fECG).

View Article and Find Full Text PDF

CD44 and CD44 variant isoforms have been reported as contributing factors to cancer progression. In this study, we aimed to assess whether CD44 and its variant isoforms were correlated with the prognostic factors for distant metastasis in stage I lung adenocarcinomas using tissue microarray and immunohistochemistry. In this single-center retrospective study, we analyzed the data of 490 patients with stage I lung adenocarcinoma resected between 1999 and 2016.

View Article and Find Full Text PDF

To develop novel drugs for treating T-cell acute lymphoblastic leukemia (T-ALL) and acute myeloid leukemia (AML) which are highly malignant hematological tumors, a series of analogs having a polyenylpyrrole structure of natural compounds (rumbrin and auxarconjugatin B) were synthesized and investigated their structure-activity relationships (SAR) of in vitro anti-T-ALL and anti-AML activities. We obtained three findings: (1) introduction of a methyl group at the conjugated polyene terminus enhanced anti-T-ALL activity, (2) analogs with a 3-chloropyrrole moiety had even higher selectivity for T-ALL cells, and (3) some analogs were effective against AML-derived cells. Among the studied compounds, 3-chloro-2-(8-ethoxycarbonylnona-1,3,5,7-tetraenyl) pyrrole 4e was the most promising candidate of T-ALL- and AML-treating drug.

View Article and Find Full Text PDF
Article Synopsis
  • Kaonic atom X-ray spectroscopy helps explore the strong interactions between kaons and atomic nuclei/nucleons, using soft X-ray emissions (<20 keV) from light kaonic atoms like hydrogen and helium as well as ongoing research for harder X-ray emissions (>20 keV) from intermediate kaonic atoms like carbon and aluminum.
  • New experiments, particularly the SIDDHARTA-2 and EXCALIBUR proposals, focus on making precise measurements using advanced cadmium-zinc-telluride (CZT) detectors, which can effectively detect hard X-rays and gamma-rays.
  • A prototype CZT detector showed impressive performance at room temperature, achieving significant energy resolution in its measurements, and experiments conducted at the DAΦNE collider
View Article and Find Full Text PDF

Background: Sclerosing pneumocytoma is a benign tumor that occurs mostly in the lungs and very rarely in the middle mediastinum. It may be difficult to diagnose, as its radiological features and histologic heterogeneity mimic malignancy; therefore a histopathologic examination is required to establish a definitive diagnosis.

Case Presentation: The patient was a 52-year-old woman who was found to have a tumor in the middle mediastinum on a chest CT scan and was referred to our hospital for resection.

View Article and Find Full Text PDF

T-cell acute lymphoblastic leukemia (T-ALL) is one of the most frequently occurring cancers in children and is associated with a poor prognosis. Here, we performed large-scale screening of natural compound libraries to identify potential drugs against T-ALL. We identified three low-molecular-weight compounds (auxarconjugatin-B, rumbrin, and lavendamycin) that inhibited the proliferation of the T-ALL cell line CCRF-CEM, but not that of the B lymphoma cell line Raji in a low concentration range.

View Article and Find Full Text PDF

Objectives: Molecular-level research has linked RING finger (RNF) protein family members to carcinogenesis and tumor progression. Among them, RNF128 is related to tumor progression, but reports on its association with lung cancer are few. This study aimed to clarify the unknown association between RNF128 expression and clinical outcomes in patients with lung adenocarcinoma.

View Article and Find Full Text PDF

Several studies show that genetic and environmental factors contribute to the onset and progression of neurodevelopmental disorders. Maternal immune activation (MIA) during gestation is considered one of the major environmental factors driving this process. The kynurenine pathway (KP) is a major route of the essential amino acid L-tryptophan (Trp) catabolism in mammalian cells.

View Article and Find Full Text PDF

Introduction: Autism spectrum disorder (ASD) is considered a significant behavioral problem that is characterized by impairment in social interaction and communication. It is believed that some cases of ASD originate in the intrauterine maternal environment. Therefore, we hypothesized that there might be qualitative changes in the interaction between the mother and fetus in ASD during the prenatal period, hence, we investigated the similarity patterns between maternal and fetal heart rate (HR).

View Article and Find Full Text PDF

Objectives: The spread through air spaces (STAS) of adenocarcinoma (ADC) is a unique pattern for local invasion, which comprises the spread of tumor cells within air spaces beyond the tumor edge without a direct connection with the primary tumor. Matrix metalloproteinase-7 (MMP-7), a secreted proteolytic enzyme that degrades various extracellular matrix components and other substrates, regulates several pathophysiological processes as well as the occurrence and development of cancers in humans. Here, we retrospectively analyzed a cohort of Japanese patients with treatment-naive, surgically-resected lung ADC to assess whether MMP-7 is associated with STAS development and if it could be used as a predictor of STAS.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the relationship between maternal and fetal heart rates (HRs) and their significance for fetal development, focusing on short-term similarities in heart rate variability.
  • Researchers employed cross-correlation analysis on non-invasive electrocardiogram (ECG) data from 158 subjects to assess similarities in maternal and fetal RR intervals (RRIs) over short time segments.
  • Findings suggest that these similarities, which can vary in strength, tend to increase with gestational age (GA), indicating a regulatory mechanism linked to healthy fetal development.
View Article and Find Full Text PDF

This study assessed the immunogenicity and safety of the BNT162b2 mRNA vaccine in lung cancer patients receiving anticancer treatment. We enrolled lung cancer patients receiving anticancer treatment and non-cancer patients; all participants were fully vaccinated with the BNT162b2 vaccine. Blood samples were collected before the first and second vaccinations and 4 ± 1 weeks after the second vaccination.

View Article and Find Full Text PDF

Purpose: Video-assisted thoracoscopic surgery (VATS) segmentectomy is being increasingly used for the management of non-small cell lung cancer. For non-palpable lesions, surgeons frequently find difficulty in ensuring a sufficient surgical resection margin.

Objective: The purpose of this study was to evaluate the role of intraoperative dual image navigation in combination with the infrared thoracoscopy with intravenous injection of indocyanine green (IRT-ICG) method and intraoperative computed tomography (CT) in detecting oncological margins.

View Article and Find Full Text PDF
Article Synopsis
  • Long QT syndrome (LQTS) is related to serious cardiac issues and is thought to be caused by genetic mutations, but research on fetal QT intervals in mice is limited due to measurement challenges.
  • A mathematical model was developed to estimate QT intervals in fetal mice, showing strong correlation with Doppler ultrasound (DUS) measurements.
  • This model-based approach offers a more reliable way to study QT intervals in fetal mice, enhancing our understanding of LQTS.
View Article and Find Full Text PDF
Article Synopsis
  • This study evaluated the role of tumor-infiltrating lymphocytes (TILs) and tumor-infiltrating neutrophils (TINs) in predicting outcomes for patients with non-small cell lung carcinoma, specifically lung adenocarcinoma and squamous cell carcinoma.
  • They analyzed data from 1191 Japanese patients and used standardized methods to count TILs and TINs, finding that high TIN counts were linked to worse recurrence-free probability (RFP) and overall survival (OS) in adenocarcinoma patients.
  • The research suggests that immune responses to cancer may vary by tumor type, indicating a need for further investigation into how neutrophils contribute to tumor progression for better immunotherapy development.
View Article and Find Full Text PDF

Objective: Lung cancer can spread in numerous ways, including spread through air spaces (STAS). A high number of CD68 tumor-associated macrophages (TAMs), which creates a favorable microenvironment for tumor progression, is an independent predictor of increased STAS rate and is used as a pan-macrophage marker, whereas CD163 is used as an M2 macrophage marker. A high number of CD25 tumor-infiltrating lymphocytes (TILs) is associated with the frequency of STAS.

View Article and Find Full Text PDF
Article Synopsis
  • This study investigates how autonomic control affects both maternal heart rate variability (MHRV) and fetal heart rate variability (FHRV) in pregnant mice.
  • It involves three groups receiving different treatments: a control group with saline, a cholinergic blocker (atropine), and a β-adrenergic blocker (propranolol), with heart signals measured for analysis.
  • Results show that atropine raises maternal heart rate while reducing MHRV without affecting fetal heart rate, while propranolol lowers fetal heart rate but increases FHRV, highlighting the complexity of maternal-fetal heart rate interactions.
View Article and Find Full Text PDF

Objectives: High-grade tumours are observed even in Stage I lung adenocarcinomas. Tumour spread through air spaces (STAS) is a risk factor for recurrence after resection. However, there is no ideal predictive biomarker for STAS in high-grade Stage I lung adenocarcinoma.

View Article and Find Full Text PDF
Article Synopsis
  • A new grading system for invasive pulmonary adenocarcinoma was developed by the IASLC due to the lack of an established grading system for this cancer type.
  • A study analyzed 471 Japanese patients with resected lung adenocarcinoma, finding that IASLC Grade 3 tumors had a significantly lower 5-year recurrence-free probability (RFP) (45%) compared to Grade 1 and 2 tumors (91% and 83%, respectively).
  • IASLC Grade 3 was determined to be an independent prognostic factor for worse RFP and overall survival, highlighting its importance in assessing patient outcomes.
View Article and Find Full Text PDF