Publications by authors named "Atsushi Kobayashi"

Blood pressure (BP) variability (BPV) is associated with an increased risk of cardiovascular events, independent of absolute BP values. However, the predictive significance of very short-term BPV, occurring within seconds or minutes, in patients with ischemic heart disease (IHD) has yet to be established. This prospective study involved 206 consecutive hospitalized patients with IHD (mean age 67.

View Article and Find Full Text PDF

The Japanese rock ptarmigan () is an herbivorous species of partridges that inhabits only alpine zones. Alpine plants are their main source of food. These alpine plants contain toxic compounds to deter herbivores from consuming them.

View Article and Find Full Text PDF

Equine herpesvirus-1 (EHV-1) causes respiratory diseases, abortion, and encephalomyelitis in horses. The EHV-1 immediate-early (IE) protein, essential for viral replication, is transactivated by the binding of a multiprotein complex including the open reading frame 12 (ORF12) and some host factors to the IE promoter region. Promoter-associated non-coding RNAs (pancRNAs), which are transcribed from bidirectional promoters, regulate the transcription of neighboring genes in mammals and pathogens.

View Article and Find Full Text PDF

Background: Exercise intolerance in heart failure arises from multifactorial pathophysiological mechanisms. Hepatokines, liver-synthesized molecules, regulate systemic metabolisms in peripheral tissues. We previously identified the hepatokine fetuin-A as being linked to liver hypoperfusion in heart failure.

View Article and Find Full Text PDF

Malnutrition is classified into marasmus and kwashiorkor in children. However, the clinical significance of these aspects is unclear in adult patients with heart failure (HF). We divided 2308 adult patients with HF into four groups according to marasmus type (body mass index < 18.

View Article and Find Full Text PDF
Article Synopsis
  • - The self-assembly of d transition metal complexes like Pt(ii) and Pd(ii) is crucial for creating advanced materials used in optoelectronics and sensing, but understanding their electronic behaviors when excited is still unclear.
  • - This study compares the excited-state behavior of self-assembled Pt(ii) and Pd(ii) complexes, revealing that while both have similar structures, their thermal responses differ significantly.
  • - The Pt(ii) complex displays a dramatic thermochromic luminescence shift when heated, while the Pd(ii) complex shows increased luminescence efficiency when cooled, highlighting their contrasting properties.
View Article and Find Full Text PDF

In organic-inorganic hybrid devices, fine interfacial controls by organic components directly affect the device performance. However, fabrication of uniformed interfaces using π-conjugated molecules remains challenging due to facile aggregation by their strong π-π interaction. In this report, a π-conjugated scaffold insulated by covalently linked permethylated α-cyclodextrin moiety with an azido group is synthesized for surface Huisgen cycloaddition on metal oxides.

View Article and Find Full Text PDF

Visible-light-driven photocatalytic hydrogen (H2) production has been extensively studied as a clean and sustainable energy resource. Although sacrificial electron donors (SEDs) are commonly used to evaluate photocatalytic activity, their irreversible decomposition forces charge separation, which disrupts the inherent dual productivity of photocatalysis, that is, the formation of both the reduction and oxidation products. To achieve highly efficient photoinduced charge separation without SED decomposition, the layer-by-layer assembly of redox-active photosensitizing dyes and electron mediators through Zr4+-phosphonate bonds has been extensively studied as an artificial mimic of the electron transport chain in natural photosynthesis.

View Article and Find Full Text PDF

Aims: The bicarbonate (HCO ) buffer system is crucial for maintaining acid-base homeostasis and blood pH. Recent studies showed that elevated serum HCO levels serve as an indicator of the beneficial effects of acetazolamide in improving decongestion in acute heart failure. In this study, we sought to clarify the clinical relevance and prognostic impact of HCO in chronic heart failure (CHF).

View Article and Find Full Text PDF
Article Synopsis
  • Ischemic heart disease is a major global health issue, and this study aimed to assess the accuracy of SurvTrace, a deep learning model, in predicting recurrent cardiovascular events compared to a traditional scoring system.
  • The research involved analyzing data from nearly 4,000 patients who underwent procedures for heart issues, monitoring them for major adverse events over two years while comparing two predictive models.
  • Results showed SurvTrace had a higher prognostic accuracy (c-index of 0.72) than the conventional model (c-index of 0.64) and was better at distinguishing high-risk patients from others, making it a promising tool for improving patient outcomes.
View Article and Find Full Text PDF

Introduction: Morphological differences in the trunk muscles between adolescent athletes with lumbar spondylolysis (LS) and nonspecific low back pain (NSLBP) have not been fully elucidated. This study aimed to investigate the differences in physiological cross-sectional areas (CSA) of the trunk muscles between athletes with acute LS and those with acute NSLBP.

Methods: Magnetic resonance images of 48 patients aged 13-14 years diagnosed with acute LS or NSLBP were retrospectively evaluated.

View Article and Find Full Text PDF

High pathogenicity avian influenza is an acute zoonotic disease with high mortality in birds caused by a high pathogenicity avian influenza virus (HPAIV). Recently, HPAIV has rapidly spread worldwide and has killed many wild birds, including endangered species. Baloxavir marboxil (BXM), an anti-influenza agent used for humans, was reported to reduce mortality and virus secretion from HPAIV-infected chickens (, order Galliformes) at a dosage of ≥2.

View Article and Find Full Text PDF

Glanders, a highly contagious and often fatal disease affecting equids, is caused by Burkholderia mallei. Although sporadic cases of equine glanders have recently been documented in Mongolia, genome sequencing and molecular studies of the bacteria within this region are lacking. This study provided the first molecular characterization of B.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the role of neutrophil extracellular traps (NETs) in patients with dilated cardiomyopathy (DCM) and heart failure, revealing that NET levels are elevated in DCM patients compared to controls without heart failure.
  • Results indicate a strong negative connection between the amount of NETs and left ventricular ejection fraction, impacting heart function and predicting higher risks of adverse cardiac events.
  • Experimental findings suggest that NETs impair cardiomyocyte mitochondrial function, and when the enzyme PAD4 is genetically removed, heart function remains intact, indicating its potential as a target for therapeutic strategies.
View Article and Find Full Text PDF

Porous molecular crystals (PMCs) have gained significant importance as next-generation functional porous materials. However, the selective crystallisation of the PMC phase remains a challenge. Herein, we have systematically controlled the stability of the luminescent PMC phase prepared using the luminescent Pt(II) complex [Pt(pbim)(N^O)] (pbim = 2-phenylbenzimidazolate, N^O = N-heteroaryl carboxylate) with Pt⋯Pt electronic interactions.

View Article and Find Full Text PDF

Hepatic arterial infusion chemotherapy (HAIC) for liver metastases (LMs) from breast cancer is not a standard of care, but its effectiveness in patients with extensive LMs who cannot tolerate systemic therapy has been reported. Herein, we report a case of breast cancer LMs that were controlled by anthracycline-based HAIC. A 46-year-old woman with estrogen receptor-positive, human epidermal growth factor receptor 2-negative metastatic breast cancer who had multiple LMs and bone metastases underwent seven lines of systemic therapy (paclitaxel/bevacizumab for 38 months; letrozole, nivolumab/fulvestrant, eribulin, gemcitabine/vinorelbine, high-dose toremifene/abemaciclib, and capecitabine for 21 months in total).

View Article and Find Full Text PDF
Article Synopsis
  • The study explores the use of deep neural networks (DNNs) for multimodality risk assessment in patients with ischemic heart disease (IHD), incorporating both 12-lead ECGs and chest X-rays (CXRs) to predict major adverse cardiovascular events (MACEs).
  • Researchers categorized 2,107 patients into four risk groups based on DNN outputs, revealing that the Dual-modality high-risk group had the highest incidence of MACEs.
  • The analysis showed that the Dual-modality high-risk group had a significantly higher risk of MACEs compared to other risk groups, highlighting the potential benefit of using a multimodal approach for assessing patient risk in IHD.
View Article and Find Full Text PDF
Article Synopsis
  • High levels of calcium-phosphorus (Ca-P) product are linked to coronary calcification and increased mortality risk in chronic hemodialysis patients, and this study focuses on its significance in heart failure (HF) and chronic kidney disease (CKD).
  • A study of 793 patients with decompensated HF and CKD split participants into high (Ca-P > 28) and low (Ca-P ≤ 28) groups to assess baseline characteristics and outcomes post-discharge.
  • Results showed that patients in the low Ca-P group had higher rates of all-cause mortality and worsening HF, with lower Ca-P product emerging as an independent predictor of negative prognosis (P = 0.031).
View Article and Find Full Text PDF
Article Synopsis
  • Paravalvular leakage (PVL) is a complication that can occur after transcatheter aortic valve implantation (TAVI), negatively affecting patient outcomes.
  • A study assessed the relationship between preoperative aortic valve calcium volume (Ca-Vol) and the occurrence of PVL in 59 patients who underwent TAVI, finding higher Ca-Vol in those with PVL.
  • The research indicated that total and specific cusp Ca-Vols were significant predictors of PVL, with specific cut-off values established for predicting the risk of leakage post-surgery.
View Article and Find Full Text PDF

Background: The sarcomatous variant of carcinoma is relatively rare in intrahepatic cholangiocarcinoma (ICC). Sarcomatous ICC (SICC) is associated with a poorer prognosis compared with ICC. SICC is rarely diagnosed before surgery due to non-descriptive findings; it progresses rapidly, resulting in miserable prognosis.

View Article and Find Full Text PDF