26,638 results match your criteria: "Chiba university.[Affiliation]"

How to Compute Density Fluctuations at the Nanoscale.

J Chem Theory Comput

December 2024

Materials Science Department, Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan.

The standard definition of particle number fluctuations based on point-like particles neglects the excluded volume effect. This leads to a large and systematic finite-size scaling and an unphysical surface term in the isothermal compressibility. We correct these errors by introducing a modified pair distribution function that takes account of the finite size of the particles.

View Article and Find Full Text PDF

Patients with generalized myasthenia gravis (gMG) suffer from significant physical and social burdens. Although immunotherapies have been widely used for the treatment of gMG, some patients do not achieve or maintain remission. Recently, several molecular-targeting therapies of gMG, including the intravenous infusion of efgartigimod alfa (efgartigimod IV), a neonatal Fc receptor inhibitor, have been developed and are clinically used in Japan.

View Article and Find Full Text PDF

Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) includes a number of clinical subtypes. The major phenotype is "typical CIDP," which is characterized by symmetric and "proximal and distal" muscle weakness. Due to historical changes in the concept of CIDP, multifocal motor neuropathy, anti-myelin-associated glycoprotein (anti-MAG) neuropathy, and autoimmune nodopathy were excluded.

View Article and Find Full Text PDF

Background: Air leakage during pulmonary resection is a major complication in thoracic surgery. It frequently occurs at sites of adhesion dissection, due to lung manipulation, and along the staple lines of automatic suturing devices, particularly in cases of pulmonary fragility such as those of emphysema and interstitial pneumonia. Persistent postoperative air leakage prolongs chest tube indwelling and extends hospitalization time.

View Article and Find Full Text PDF

Graphene Functionalization by O, H, and Ar Plasma Treatments for Improved NH Gas Sensing.

ACS Appl Mater Interfaces

December 2024

Graduate School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan.

Graphene-based materials have gained attention for their promise in various applications owing to their two-dimensional structure. Functionalizing the graphene surface can help realize materials with noble properties. In this study, graphene was functionalized by plasma treatment in O, H, and Ar environments, and the effects on the NH gas-sensing performance were evaluated.

View Article and Find Full Text PDF

Nodular-bronchiectatic Pattern in Pulmonary Nocardiosis: Immune Status and Treatment Outcomes in a Multicenter Retrospective Study.

Respir Med

December 2024

Division of Respiratory Diseases, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-shimbashi, Minato-ku, Tokyo, 105-8471, Japan. Electronic address:

Background: Pulmonary nocardiosis is a rare opportunistic infection, with approximately 15% of patients being immunocompetent. The isolation rate of Nocardia spp. has recently increased, indicating rising clinical concern.

View Article and Find Full Text PDF

Aims: Several risk-scoring models, including the Fukuoka Stroke Risk Score, Essen Stroke Risk Score, and Stroke Prognosis Instrument II, have been developed to predict recurrent cerebrovascular events in patients with ischemic stroke. As myocardial infarction (MI) and ischemic stroke are both atherosclerotic diseases, these scoring models in the field of cerebrovascular disease may be applicable and useful for risk stratification in patients with acute MI. We therefore evaluated the diagnostic ability and clinical applicability of these stroke risk scores in predicting atherosclerotic events after acute MI.

View Article and Find Full Text PDF

Arketamine alleviates cognitive impairments and demyelination in mice with postoperative cognitive dysfunction via TGF-β1 activation.

Prog Neuropsychopharmacol Biol Psychiatry

December 2024

Chiba University Center for Forensic Mental Health, Chiba 260-8670, Japan; Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China. Electronic address:

Postoperative cognitive dysfunction (POCD) is characterized by a decline in cognitive functions, including memory, attention, and executive abilities, following surgery, with no effective therapeutic drugs currently available. Arketamine, the (R)-enantiomer of ketamine, has shown promise in mitigating cognitive deficits in animal models. In this study, we investigated whether arketamine could ameliorate cognitive deficits in a mouse model of POCD, with a focus on the role of transforming growth factor (TGF)-β1 in its effects.

View Article and Find Full Text PDF

Introduction: Paranoid ideation, a crucial component of psychotic-like experiences, tends to increase between early and late adolescence, even in the general population, and it negatively affects overall mental health and social adjustment. Japanese adolescents experience high levels of interpersonal stress. However, few studies have examined the relationship between paranoid ideation and interpersonal stress.

View Article and Find Full Text PDF

How are the Barthel Index and care need levels associated in residents of nursing homes in Japan?

Geriatr Gerontol Int

December 2024

Department of Home and Palliative Care Nursing, Graduate School of Health Care Sciences, Institute of Science Tokyo, Tokyo, Japan.

This study examined the relationship between Long-Term Care Insurance care need levels and Barthel Index scores in Japanese nursing home residents. Findings show a strong correlation (r = -0.68), comparable to community-dwelling individuals, yet certain care need levels exhibited large score variability.

View Article and Find Full Text PDF

Study Question: Does one-step warming (OW), a simplified embryo warming protocol, adversely affect survival and developmental potential in vitrified cleavage or blastocyst stage embryos compared to standard multi-step warming (SW)?

Summary Answer: OW showed no detrimental effects on survival and developmental potential compared to SW in cleavage and blastocyst stage embryos.

What Is Known Already: While standard embryo warming protocols involve a multi-step procedure using a stepwise osmotic solution to avoid a rapid influx of water into the embryo, recent studies suggest that eliminating the stepwise warming process does not reduce embryo survival and embryo transfer outcomes. However, previous reports have focused primarily on pregnancy rates, and a more detailed analysis of the effects of rapid osmotic pressure changes on embryos is necessary to standardize the protocol.

View Article and Find Full Text PDF

Background: Coronavirus disease 2019 (COVID-19) in children is often asymptomatic, posing challenges in detecting infections. Additionally, factors contributing to infection remain poorly understood. This study aimed to investigate trends in anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleocapsid antibody seroprevalence, the relationship between seroprevalence and parental perception of child infection, and factors related to COVID-19 in children.

View Article and Find Full Text PDF

Background: Underdoses of direct oral anticoagulants (DOAC) are sometimes prescribed due to bleeding risk concerns in patients with atrial fibrillation (AF). We investigated the prevalence of DOAC underdosing and its impact on clinical outcomes in AF patients undergoing percutaneous coronary intervention (PCI).

Methods And Results: This multicenter observational cohort study enrolled patients with AF on DOAC undergoing PCI between January 2015 and March 2021 at 15 institutions across Japan.

View Article and Find Full Text PDF

Brucella anthropi, an aerobic, glucose-nonfermenting gram-negative rod, is predominantly an opportunistic pathogen affecting immunosuppressed patients. This case report describes a 27-year-old woman with systemic lupus erythematosus who developed persistent B. anthropi bacteremia following a pregnancy termination.

View Article and Find Full Text PDF

Knowledge mapping and emerging trends in cognitive impairment associated with chronic pain: A 2000-2024 bibliometric study.

Brain Res Bull

December 2024

Department of Anesthesiology, Pain and Perioperative Medicine, The first Affiliated Hospital of Zhengzhou University, Zhengzhou,  China; Chiba University Center for Forensic Mental Health, Chiba 260-8670, Japan. Electronic address:

Chronic pain is commonly recognized as a distressing symptom or a standalone disease, with over half of those affected experiencing cognitive impairment, which significantly impacts their quality of life. Despite a recent surge in literature on cognitive impairment associated with chronic pain, a comprehensive bibliometric analysis in this field has yet to be conducted. In this study, we performed a bibliometric analysis on this topic.

View Article and Find Full Text PDF

Isotopes unveil overestimation of nutrient-driven oxygen deficit in the tidal rivers of Pearl River Delta during the wet season.

Sci Total Environ

December 2024

The Key Laboratory of Water and Air Pollution Control of Guangdong Province, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510530, China; National Key Laboratory of Water Environment Simulation and Pollution Control, South China Institute of Environmental Science, Ministry of Ecology and Environment, Guangzhou 510535, China. Electronic address:

A low dissolved oxygen (DO) concentration in summer has been observed in river-estuary systems worldwide. Many studies have caused our stereotype that biochemical oxygen depletion was higher in summer than in winter; however, there was no direct evidence particularly in the tidal river with complex hydrological and biochemical processes. This study employed natural-abundance and labeled isotopes to quantify seasonal apportionment of biochemical oxygen depletion.

View Article and Find Full Text PDF

Background: No previous studies have compared respiratory clinics and respiratory specialized facilities regarding causative diseases for bloody sputum and hemoptysis in Japan.

Methods: We retrospectively compared causative diseases for bloody sputum and hemoptysis between 3 respiratory clinics (clinic group) and 7 departments of respiratory medicine at hospitals (hospital group) in Japan.

Results: We collected data from 231 patients (median age, 51 years; age range, 24-96 years; 109 men (47.

View Article and Find Full Text PDF

3,4-Methylenedioxymethamphetamine (MDMA; Ecstasy) is a widely abused recreational drug that has also gained interest for potential clinical applications in mental health. With the growing recognition of gut microbiota's role in mental health, this study examined whether repeated oral MDMA administration could affect gut microbiota in the small intestine, cecum, and colon of male rats. Repeated oral MDMA administration (10 mg/kg/day for 14 days) caused significant changes in the gut microbiota across these regions, with distinct effects observed in each.

View Article and Find Full Text PDF

The fact that blinks occur more often than necessary for ocular lubrication has led to the proposal that blinks are involved in altering some aspects of visual cognition. Previous studies have suggested that blinking can modulate the alternation of different visual interpretations of the same stimulus, that is, perceptual alternation in multistable perception. This study investigated whether and how different types of blinks, spontaneous and voluntary, interact with perceptual alternation in a multistable perception paradigm called continuous flash suppression.

View Article and Find Full Text PDF