98 results match your criteria: "Tokyo Metropolitan Geriatric Medical Center[Affiliation]"
Am Heart J Plus
November 2024
Department of Cardiology, Tokyo Teishin Hospital, Tokyo, Japan.
Background: Statins bring favourable effects on the clinical prognosis of patients with atherosclerotic disease partly through their anti-inflammatory properties. However, this effect has not been fully verified in patients with peripheral arterial disease (PAD). We aimed to test whether statins exert different prognostic effects depending on the degrees of inflammation in patients with PAD.
View Article and Find Full Text PDFFront Dement
January 2024
Department of Neuropathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
-ε4 allele[s] is a risk factor for Alzheimer's disease (AD) and Amyloid-Related Imaging Abnormalities (ARIA) in anti-amyloid beta therapy, and is also associated with cerebrovascular risk factors such as hyperlipidemia or atherosclerosis. During AD clinical trials, -ε4 carriers may experience neuropsychiatric adverse events (AEs) related to these risks, complicating the differentiation of ARIA from cerebrovascular events based on symptoms. This study aimed to examine the hypothetical impact of considering the -ε4 allele's risk for non-ARIA AEs during AD clinical trials.
View Article and Find Full Text PDFBackground: Severe aortic valve stenosis (AS) and atrial fibrillation (AF) are risk factors of hemodynamic instability in heart failure (HF) management due to low cardiac output, respectively. Therefore, the treatment of HF due to severe AS complicated with AF is anticipated to be difficult. Tolvaptan, a vasopressin V2 receptor inhibitor, is effective in controlling acute decompensated heart failure (ADHF) with hemodynamic stability.
View Article and Find Full Text PDFIntroduction: The rules for human fetal tissue (HFT) research in Japan are unclear.
Methods: In this paper, we conducted a web survey to examine the attitudes of Japanese researchers (n=535) and the public (n=3,000) toward HFT research.
Results: The results demonstrated that 5.
Clin Chim Acta
February 2023
Departments of Clinical Laboratory Medicine, The University of Tokyo, Tokyo, Japan.
Background: The differential diagnosis of neuropathic pain, especially discrimination between neuropathic pain caused by spinal canal stenosis (SCS) and neuropathic pain associated with causes other than SCS, is sometimes difficult; however, it is important for surgical application.
Methods: We established a reliable method for measuring lysophosphatidylcholine (LPC), a precursor of lysophosphatidic acids which are known as being pain initiators, using a liquid chromatography-tandem mass spectrometry method, and measured the LPC concentrations in the cerebrospinal fluid (CSF) in patients with SCS (SCS group; n = 76), patients with neuropathic pain caused by non-SCS diseases (Others group; n = 49), and control subjects without pain (control group; n = 92).
Results: Both within-run and between-run CV(%) were almost < 10 %, suggesting an enough performance for clinical introduction.
Circ J
December 2022
Department of Internal Medicine, Kobe University Graduate School of Medicine.
VideoGIE
November 2022
Department of Gastroenterology, Chiba-nishi General Hospital, Matsudo, Chiba, Japan.
Video 1Crush the large-sized stones directly using an electrohydraulic lithotripsy device.
View Article and Find Full Text PDFPain Ther
December 2022
Department of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan.
The mechanisms underlying neuropathic pain remain unclear. Lysophosphatidic acid (LPA) is a bioactive phospholipid derived mainly from lysophosphatidylcholine (LPC) by extracellular autotaxin (ATX), and has attracted attention as a candidate biomarker of neuropathic pain. We aimed to investigate the levels of LPA, LPC, and ATX in patients with lumbar spinal canal stenosis (LSCS) or other neuropathic pain diseases, and to distinguish the underlying mechanism of LSCS from other neuropathic pain conditions.
View Article and Find Full Text PDFObjectives: This study aimed to objectively evaluate the water-jet-functioned electrosurgical knife injection performances in a desktop experiment.
Methods: Five types of water-jet-functioned electrosurgical knives, including two injection styles of sheath-type (A: DualKnife J, KD-655L; B: FlushKnife, DK2620-J-B20S; C: Splash M-Knife, DN-D2718B; D: ISSEN, SN1650-20) and tip-type (E: ORISE ProKnife, M00519361) were evaluated. These knives were compared with an injection needle (Control: SuperGrip 25G) as a control.
BMJ Neurol Open
August 2022
Molecular Genetics, Niigata University Brain Research Institute, Niigata, Japan.
Background: The AT(N) classification was proposed for categorising individuals according to biomarkers. However, AT(N) profiles may vary depending on the markers chosen and the target population.
Methods: We stratified 177 individuals who participated in the Japanese Alzheimer's Disease Neuroimaging Initiative by AT(N) classification according to cerebrospinal fluid (CSF) biomarkers.
Regen Ther
December 2022
Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Introduction: Endoscopic submucosal dissection (ESD) is a minimally invasive treatment for early esophageal cancer. However, large mucosal defects after esophageal ESD result in refractory strictures. In the present study, we histologically evaluated the endoscopic transplantation of allogeneic epidermal cell sheets (ECSs) as a feasible therapy for preventing esophageal stricture after circumferential ESD in a porcine model.
View Article and Find Full Text PDFCornea
August 2022
Department of Ophthalmology, Miyata Eye Hospital, Miyazaki, Japan.
Purpose: This study aimed to present a case of transient corneal damage after exposure to the effluent squirting from a sea anemone, Anthopleura uchidai, and to experimentally confirm the presence of toxic substances from an A. uchidai in the tissue culture.
Methods: We reviewed the clinical course of a 51-year-old man who complained of decreased vision in his left eye after the stinging of a sea anemone, A.
This paper presents a comparison of the 2021 guidelines for stem cell research and clinical translation outlined by the International Society for Stem Cell Research (ISSCR) with the current regulations in Japan regarding the performance of such research. This paper provides a convenient English-language summary of the Japanese regulations, and illustrates the difference between the ISSCR guidelines and Japanese regulations regarding the conditions of implementation of study activities using human embryos or stem cells, for researchers outside Japan. The regulations governing the performance of research activities using human embryos or stem cells in Japan are relatively complex and comprise a range of laws and guidelines; the specific rules applied depend on the characteristics of each study.
View Article and Find Full Text PDFRegen Ther
June 2022
Kanagawa University of Human Services, Japan, Research Gate Building TONOMACHI 2-A 2・3F, 3-25-10 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-0821, Japan.
Introduction: Breakthroughs in stem cell research (SCR) and regenerative medicine (RM) have attracted significant public attention worldwide. Simultaneously, scientific communities and science policies have tried to establish appropriate governance of SCR and RM. In this context, effective communication between scientific communities and the public is regarded as a key factor.
View Article and Find Full Text PDFInt J Environ Res Public Health
May 2022
Tokyo Metropolitan Geriatric Medical Center, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan.
J Cardiothorac Surg
May 2022
Department of Surgery, Tokyo Metropolitan Geriatric Medical Center, Tokyo, Japan.
Background: To overcome the anatomical limitation of a narrow aorta and short length from the renal artery to the terminal aorta, unibody endograft AFX2 and iliac branch endoprosthesis (IBE) can be combined.
Case Presentation: Case 1: The first patient was an 89-year-old woman who had a right saccular common iliac artery (CIA) aneurysm (38 mm); the abdominal aorta was not aneurysmal (diameter, 19 mm). The right CIA's origin was 10 mm in diameter.
J Alzheimers Dis
April 2022
Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Aichi, Japan.
Background: Previous studies have demonstrated associations between gut microbiota, microbial metabolites, and cognitive decline. However, relationships between these factors and lipopolysaccharides (LPS; molecules of the outer membrane of gram-negative bacteria) remain controversial.
Objective: To evaluate associations between plasma LPS, gut microbiota, and cognitive function.
J Alzheimers Dis
April 2022
Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Aichi, Japan.
Background: Previous studies have demonstrated associations between gut microbiota, microbial metabolites, and cognitive decline. However, relationships between these factors and neurofilament light chain (NfL; a disease-nonspecific biomarker of neural damage) remain controversial.
Objective: To evaluate the associations between plasma NfL, gut microbiota, and cognitive function.
Int J Environ Res Public Health
January 2022
Tokyo Metropolitan Geriatric Medical Center, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan.
Bite force is an important indicator of masticatory performance. However, existing methods for measuring bite force are either ineffective or expensive. Hence, we developed a novel capacitive-type pressure-mapping sensor that converts mechanical forces into changes in capacitance and calculates bite force.
View Article and Find Full Text PDFBMC Ophthalmol
February 2022
Miyata Eye Hospital, 6-3, Kuraharacho, Miyakonojo, Miyazaki, 885-0051, Japan.
Background: Human herpesvirus 6B (HHV-6B) is known to cause exanthema subitem and has been detected in various ocular diseases, including keratitis, uveitis, optic neuritis, and endophthalmitis; however, the long-term outcome after the reactivation of HHV-6B has not been well-addressed. Sugita et al. previously reported the concomitant presence of HHV-6B with herpes simplex virus-1 (HSV-1) in the aqueous fluid at the onset of corneal endotheliitis.
View Article and Find Full Text PDFFront Aging Neurosci
December 2021
Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States.
Clinical and basic research suggests that exercise is a safe behavioral intervention and is effective for improving cognitive function in cerebrovascular diseases, including subcortical ischemic vascular dementia (SIVD). However, most of the basic research uses young animals to assess the effects of exercise, although SIVD is an age-related disease. In this study, therefore, we used middle-aged mice to examine how treadmill exercise changes the cognitive function of SIVD mice.
View Article and Find Full Text PDFNutrition
February 2022
Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Aichi, Japan; Department of Cognition and Behavioral Science, Nagoya University Graduate School of Medicine, Aichi, Japan.
Objective: Previous studies have shown associations between the gut microbiota, microbial metabolites, and cognitive decline. However, the effect of the dietary composition on such associations has not been fully investigated. The aims of this study were to evaluate the relationships between adherence to a Japanese-style diet, the gut microbiota, and cognitive decline.
View Article and Find Full Text PDFJ Cardiol
April 2022
Department of Neurology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
J Prev Alzheimers Dis
November 2021
Dr. Atsushi Iwata, Department of Neurology, Tokyo Metropolitan Geriatric Medical Center Hospital, 35-2 Sakaecho Itabashi-ku, Tokyo 173-0015, Japan, Phone: 81-3-3964-1141, FAX: 81-3-3964-2963, , E-mails:
Background: Models that can predict brain amyloid beta (Aβ) status more accurately have been desired to identify participants for clinical trials of preclinical Alzheimer's disease (AD). However, potential heterogeneity between different cohorts and the limited cohort size have been the reasons preventing the development of reliable models applicable to the Asian population, including Japan.
Objectives: We aim to propose a novel approach to predict preclinical AD while overcoming these constraints, by building models specifically optimized for ADNI or for J-ADNI, based on the larger samples from A4 study data.
Genome Biol Evol
October 2021
Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan.
Species of infraorder Gryllidea, or crickets, are useful invertebrate models for studying developmental biology and neuroscience. They have also attracted attention as alternative protein sources for human food and animal feed. Mitochondrial genomic information on related invertebrates, such as katydids, and locusts, has recently become available in attempt to clarify the controversial classification schemes, although robust phylogenetic relationships with emphasis on crickets remain elusive.
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