603 results match your criteria: "Teikyo-Heisei University[Affiliation]"

Optical Filters with Asymmetric Transmittance Depending on the Incident Angle, Produced Using Liquid Crystalline Ink (Louver LC Filters).

Materials (Basel)

August 2023

Medical Engineering Course, Department of Medical Course, Faculty of Health and Medical Science, Teikyo Heisei University, 2-51-4 Higashi-ikebukuro, Toshima-ku, Tokyo 170-8445, Japan.

In many situations in everyday life, sunlight levels need to be reduced. Optical filters with asymmetric transmittance dependent on the incident angle would be useful for sunglasses and vehicle or architectural windows, among others. Herein, we realized the production of optical filters, called "louver filters", comprising HAN-type LC film produced using liquid crystalline ink with dichroic dyes.

View Article and Find Full Text PDF

Objectives: Protein Z (PZ) is a γ-carboxyglutamic acid protein present in plasma that is involved in blood coagulation. Detailed analysis of urinary stones from patients with urolithiasis has revealed that PZ is often found in urinary stones composed of calcium oxalate monohydrate. In this study, we compared blood and urinary PZ concentrations between healthy individuals and patients with urolithiasis.

View Article and Find Full Text PDF

Objective: Adequate conditioning results from various physical, environmental, and psychological factors in sports activities. In this study, we aimed to clarify the concurrence and relevance of injuries, psychological problems, and sleep disturbance in university football (soccer) players. Biomechanical characteristics and risk factors for those injuries were also investigated.

View Article and Find Full Text PDF

Senescent cells form nuclear foci that contain the 26S proteasome.

Cell Rep

August 2023

Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 1130033, Japan. Electronic address:

Article Synopsis
  • * Researchers discovered that senescent cells form unique nuclear structures called senescence-associated nuclear proteasome foci (SANPs) that require both ubiquitination and proteasome activity to form.
  • * Reducing RAD23B, a protein involved in SANP formation, boosts mitochondrial activity and increases reactive oxygen species levels without changing other signs of senescence, highlighting SANPs' significance in aging cells.
View Article and Find Full Text PDF

Nonalcoholic steatohepatitis (NASH) can progress to cirrhosis and even hepatocellular carcinoma (HCC). The incidence of NASH-associated HCC is increasing, posing a serious public health threat. Unfortunately, the underlying pathological mechanisms, including the possible differences between neoplastic and non-neoplastic lesions, remain largely unknown.

View Article and Find Full Text PDF
Article Synopsis
  • The study evaluated the effectiveness and safety of quadripulse transcranial magnetic stimulation-50 (QPS-50) for patients with difficult-to-treat epilepsy.
  • Four patients underwent weekly QPS-50 sessions for 12 weeks, and their symptoms were closely monitored, alongside control experiments with healthy volunteers.
  • Results indicated that while some patients experienced worsening of epilepsy symptoms, healthy subjects’ motor thresholds remained stable, suggesting QPS-50 may not be a safe or effective treatment for intractable epilepsy.
View Article and Find Full Text PDF

Time-Course of Transcriptomic Change in the Lungs of F344 Rats Repeatedly Exposed to a Multiwalled Carbon Nanotube in a 2-Year Test.

Nanomaterials (Basel)

July 2023

Department of Medical Sports, Faculty of Health Care and Medical Sports, Teikyo Heisei University, 4-1 Uruido-Minami, Ichihara 290-0193, Chiba, Japan.

Despite intensive toxicological studies of carbon nanotubes (CNTs) over the last two decades, only a few studies have demonstrated their pulmonary carcinogenicities in chronic animal experiments, and the underlying molecular mechanisms are still unclear. To obtain molecular insights into CNT-induced lung carcinogenicity, we performed a transcriptomic analysis using a set of lung tissues collected from rats in a 2-year study, in which lung tumors were induced by repeated intratracheal instillations of a multiwalled carbon nanotube, MWNT-7. The RNA-seq-based transcriptome identified a large number of significantly differentially expressed genes at Year 0.

View Article and Find Full Text PDF

Aim: This study identified the correlates of delirium care competency among shift leader nurses in acute medical wards in Japan.

Methods: A cross-sectional study was conducted from November 2019 to February 2020. We sent request letters to a random sample of 381 general acute care hospitals in Japan.

View Article and Find Full Text PDF

[Steps to Regulatory Science].

Yakugaku Zasshi

July 2023

Graduate School of Environmental Informations, Teikyo Heisei University.

The research achievements in the field of regulatory science from the beginning of my research are described in an overview. First, I was interested in the complexity of development and pursued my studies on the mechanisms of DNA replication and repair, the mutagenicity of air pollutants, and the oncogene. After researching new phenomena based on the discovery of basic research in molecular/biochemistry, my research interests turned to the field of regulatory science which applies scientific evidence to social systems.

View Article and Find Full Text PDF

Anorexia is a behavioral change caused by functional brain disorders in patients with Alzheimer's disease (AD). Amyloid-β (1-42) oligomers (o-Aβ) are possible causative agents of AD that impair signaling via synaptic dysfunction. In this study, we used Aplysia kurodai to study functional disorders of the brain through o-Aβ.

View Article and Find Full Text PDF

Effect of the COVID-19 Pandemic on Lower Extremity Injuries in Japanese Collegiate Men's Basketball Players.

Orthop J Sports Med

May 2023

Department of Medicine and Science, Kanto Collegiate Basketball Federation, Shibuya-ku, Tokyo, Japan.

Article Synopsis
  • The study focused on the impact of COVID-19 on lower extremity injuries among Japanese collegiate men's basketball players, comparing data from before and during the pandemic.
  • Researchers analyzed injury rates from 6 teams over the 2020-21 and 2021-22 seasons, finding a significant increase in overall injury rates compared to the previous years.
  • Key injuries that surged included lateral ankle sprains, hamstring strains, jumper's knee, and stress fractures, highlighting the need for improved injury prevention strategies.
View Article and Find Full Text PDF

Protein folding is essential for a polypeptide chain to acquire its proper structure and function. Globins are a superfamily of ubiquitous heme-binding α-helical proteins whose function is principally to regulate oxygen homoeostasis. In this review, we explore the hierarchical helical formation in the globin proteins apomyoglobin and leghemoglobin, and we discuss the existence of non-native and misfolded structures occurring during the course of folding to its native state.

View Article and Find Full Text PDF

Aim: Urinary liver-type fatty acid binding protein (L-FABP) has potential utility as an early prognostic biomarker ahead of traditional severity scores in coronavirus disease 2019 and sepsis, however, the mechanism of elevated urinary L-FABP in the disease has not been clearly elucidated. We investigated the background mechanisms of urinary L-FABP excretion through non-clinical animal model focusing on histone, which is one of the aggravating factors in these infectious diseases.

Methods: Male Sprague-Dawley rats were placed in central intravenous catheters, and these rats were given a continuous intravenous infusion of 0.

View Article and Find Full Text PDF

Background: There is no consensus on the relationship between maternal glucose levels and fetal movements.

Objective: This study aimed to investigate the correlation between gross fetal movements and maternal glucose levels in the hours around food intake.

Study Design: This was an observational study with 2 newly developed technologies, which were a glucose monitoring system and a fetal movement acceleration measurement recorder.

View Article and Find Full Text PDF

Estimation of the Depletion Layer Thickness in Silicon Nanowire-Based Biosensors from Attomolar-Level Biomolecular Detection.

ACS Appl Mater Interfaces

April 2023

Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-Cho, Kiryu, Gunma 376-8515, Japan.

Silicon nanowire (SiNW) biosensors have attracted a lot of attention due to their superior sensitivity. Recently, the dependence of biomolecule detection sensitivity on the nanowire (NW) width, number, and doping density has been partially investigated. However, the primary reason for achieving ultrahigh sensitivity has not been elucidated thus far.

View Article and Find Full Text PDF

This study aimed to investigate sleep problems during staying at home due to the coronavirus disease 2019 (COVID-19) pandemic and after returning to campus among university nursing students. We analyzed data from self-reported sleep surveys conducted during a nursing course at a university in Tokyo between 2019 and 2021. During staying at home due to COVID-19, we observed delayed sleep-wake rhythm, prolonged sleep duration on weekdays, a decreased sleep debt, improved daytime sleepiness, and worsened insomnia, especially in terms of difficulty initiating sleep (Study 1; 18 paired data).

View Article and Find Full Text PDF

This study aimed to identify the modifiable cardiovascular risk factors associated with longitudinal changes, which are nine functional and structural biological vascular aging indicators (BVAIs), to propose an effective method to prevent biological vascular aging. We conducted a longitudinal study of 697 adults (a maximum of 3636 BVAI measurements) who were, at baseline, aged between 26 and 85 years and whose BVAIs were measured at least twice between 2007 and 2018. The nine BVAIs were measured using vascular testing and an ultrasound device.

View Article and Find Full Text PDF

Humoral and cellular responses are critical in understanding immune responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination. Here, we evaluated these responses in hemodialysis (HD) patients after the booster vaccination. SARS-CoV-2 immunoglobulin (IgG) levels, neutralizing antibody titers, and the T-SPOT.

View Article and Find Full Text PDF

Possible contribution of phosphate to the pathogenesis of chronic kidney disease in dolphins.

Sci Rep

March 2023

Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.

Article Synopsis
  • This study examines the role of phosphate in the development of chronic kidney disease (CKD) in dolphins by analyzing tissue samples from a deceased captive dolphin.
  • Although the dolphin had normal renal function until shortly before death, it exhibited medullary calcification and kidney injury due to myocarditis.
  • Experiments indicated that high phosphate levels can harm dolphin kidney cells, but magnesium may help reduce this damage, suggesting a link between phosphate exposure, kidney injury, and potential treatment options.
View Article and Find Full Text PDF

This study aimed to investigate muscle damage when performing equal mechanical work of fast and slow pedaling speed by eccentric muscle actions (ECCs) cycling. Nineteen young men [mean ± standard deviation (SD) age: 21.0 ± 2.

View Article and Find Full Text PDF

Background: Few studies have compared the safety risks between the gabapentinoids, pregabalin, and mirogabalin in post-marketing clinical settings. We assessed reported events associated with gabapentinoid use in patients with neuropathic pain.

Research Design And Methods: We conducted a retrospective cohort study between September 2020 and December 2020 using the community pharmacies records in Japan.

View Article and Find Full Text PDF

Sex difference in soccer instep kicking.

J Sports Sci

October 2022

Faculty of Sports and Health Science, Fukuoka University, Fukuoka, Japan.

We aimed to clarify the differences in soccer instep kicking dynamics between sex groups. The instep kicking of seven female (height: 160.3 ± 6.

View Article and Find Full Text PDF

Efficacy and Safety of Low-dose Spironolactone for Chronic Kidney Disease in Type 2 Diabetes.

J Clin Endocrinol Metab

August 2023

Department of Diabetes, Endocrinology and Metabolism, Division of Internal Medicine, Shinshu University School of Medicine, Matsumoto 390-8621, Japan.

Article Synopsis
  • Adding a low dose of spironolactone (12.5 mg/d) to treatment for adults with chronic kidney disease and type 2 diabetes can reduce levels of albumin in urine (albuminuria) without significantly increasing the risk of high potassium levels (hyperkalemia).
  • This study was conducted from July 2016 to November 2020 in three diabetes care centers in Japan, involving 130 adults with type 2 diabetes and specific kidney function criteria.
  • Results showed the spironolactone group had a significant reduction in urine albumin-to-creatinine ratio compared to a control group, and while potassium levels increased, none of the participants reached dangerously high levels of potassium.
View Article and Find Full Text PDF