Publications by authors named "Nagasawa J"

We report a case in which mechanical thrombectomy (MT) was performed on a patient with cerebral infarction and renal failure, and contrast leakage remained on postoperative head computed tomography (CT) scans for more than 24 hours. A 75-year-old woman with a medical history of chronic renal failure due to diabetic nephropathy was admitted to the cardiology department of our hospital with chronic heart failure. During hospitalization, her diabetic nephropathy worsened.

View Article and Find Full Text PDF

Introduction: Cardiac sympathetic denervation is specific to Lewy body disease (LBD). In Parkinson's disease (PD), sympathetic denervation in the major salivary glands (parotid glands [PG] and submandibular glands [SMG]) has been demonstrated by I-metaiodobenzylguanidine (MIBG) scintigraphy. We compared sympathetic denervation in the MSG between PD, dementia with Lewy bodies (DLB), and progressive supranuclear palsy (PSP).

View Article and Find Full Text PDF

An 80-year-old man was admitted to our hospital with acute cerebellar infarction. Conventional magnetic resonance angiography and computed tomography angiography (CTA) showed occlusion of the right vertebral artery (VA). Carotid ultrasonography revealed that the right VA was narrowed at its entry point into the transverse foramen near C6.

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

Spinal and bulbar muscular atrophy (SBMA) progressively impairs gait function, resulting in the need for patients to use a wheelchair approximately 20 years after onset. No reports have investigated the effects of long-term exercise training using the Hybrid Assisted Limb (HAL) in patients with multiple SBMA. This study investigated the effects of long-term exercise training using HAL in patients with SBMA and its effects on the quality of life (QoL).

View Article and Find Full Text PDF

Background: Primary lateral sclerosis (PLS) is an extremely rare condition; therefore, to date no clinical studies have been conducted. The Primary Lateral Sclerosis Functional Rating Scale (PLSFRS) was developed in the United States of America. The PLSFRS is a crucial assessment scale for international collaborative research and future clinical trials for PLS.

View Article and Find Full Text PDF

The efficacy of mechanical thrombectomy (MT) for acute ischemic stroke has been established, but there are few reports on the effectiveness of MT for stroke patients with collagen disease. We report the case of a systemic lupus erythematosus (SLE) patient with cerebral infarction who underwent MT. A 48-year-old woman had been diagnosed with SLE for 30 years.

View Article and Find Full Text PDF

Adult-onset Still's disease (AOSD) is a rare systemic inflammatory condition of an unknown etiology. Stroke is a rare complication associated with AOSD; most of these are cerebral infarctions due to the occlusion of small blood vessels. Here, we report the first case of mechanical thrombectomy in a patient with cerebral infarction due to a large vessel occlusion associated with AOSD.

View Article and Find Full Text PDF

Background: Parkinson's disease (PD) shows cardiac sympathetic denervation (SD) in I-metaiodobezylguanidine (MIBG) scintigraphy. Recently, SD in the major salivary glands (MSG-SD) was introduced as a possible radiological feature of PD.

Objective: To identify the clinical characteristics of patients with PD with reduced MSG and cardiac MIBG uptake (dual-SD) compared with those with reduced MSG or cardiac MIBG uptake only (single-SD).

View Article and Find Full Text PDF

Introduction: Branch atheromatous disease (BAD) is a type of cerebral infarction caused by stenosis or occlusion at the entrance of the penetrating branch due to the presence of plaque. Despite its clinical significance, it is not clear how these plaques are formed. Focal geometrical characteristics are expected to be as important as vascular risk factors in the development of atherosclerosis.

View Article and Find Full Text PDF

Objectives: To analyze I-metaiodobenzylguanidine (MIBG) uptake in the parotid and submandibular glands in patients with Parkinson's disease (PD) in comparison with controls, and to compare MIBG uptake between those glands and the myocardium. Furthermore, we aimed to identify the relationships between clinical features and MIBG uptake.

Methods: We recruited 77 patients with PD and 21 age-matched controls.

View Article and Find Full Text PDF

Secondary metabolites in plants influence the health of herbivores such as Japanese rock ptarmigans that feed on the leaves and fruits of alpine plants. Thus, it is important to understand the secondary metabolites of alpine plants and their biological activities for conserving Japanese rock ptarmigans. We isolated C-methylflavone from the leaves of Kalmia procumbens, on which Japanese rock ptarmigans feed.

View Article and Find Full Text PDF

Objective To assess the long-term effects of hybrid assistive limb (HAL) treatment on gait in patients with amyotrophic lateral sclerosis (ALS). Methods Three courses of treatment with HAL were administered to three women with ALS. Each course had a four- to five-week duration, during which the treatment was performed nine times, with a rest period of at least two months between each course.

View Article and Find Full Text PDF
Article Synopsis
  • The Hybrid Assistive Limb (HAL) is a wearable robotic device designed to aid walking by detecting signals from muscle activity, and this study explored its effects on patients with amyotrophic lateral sclerosis (ALS).* -
  • In a single-arm observational study, ALS patients participated in HAL training sessions (20-40 min) over 9-10 days and their gait was evaluated using various walking tests before and after the training.* -
  • Results indicated that while HAL training did improve overall gait function, evidenced by increased distance in the 2-minute walk test, it did not significantly change other gait metrics or daily living activities, suggesting it may help maintain gait ability in ALS patients.*
View Article and Find Full Text PDF

This study aims to build a system for detecting a driver's internal state using body-worn sensors. Our system is intended to detect inattentive driving that occurs during long-term driving on a monotonous road, such as a high-way road. The inattentive state of a driver in this study is an absent-minded state caused by a decrease in driver vigilance levels due to fatigue or drowsiness.

View Article and Find Full Text PDF

The study aimed to verify the impact of our clinical strategy, which emphasizes patient-centered care, based on patient-reported outcome measures (PROMs) results in hemodialysis patients. We developed our original PROM (comprising 20 items) to assess patients' symptom burden. To confirm the validity of our clinical pattern, we performed various analyses using PROM data.

View Article and Find Full Text PDF
Article Synopsis
  • Oocysts of Isospora sp. were found in the feces of a veiled chameleon at a zoo in Japan.
  • Phylogenetic analysis linked the isolate to known Isospora spp. from reptiles, and it showed morphological similarities to the potentially harmful species I. jaracimrmani.
  • Despite shedding these oocysts, the chameleon displayed no symptoms of illness for over two months, indicating that Isospora species might not always lead to disease.
View Article and Find Full Text PDF

Background: Clinical evidence to support the use of mechanical thrombectomy (MT) for posterior cerebral artery P2 segment occlusion (P2O) has not been established, and hemiplegia due to P2O improved by MT to our knowledge has not yet been reported. We report 2 cases of P2O with hemiplegia improved by MT.

Case Description: In case 1, a 68-year-old man was admitted with right hemiplegia and dysesthesia (National Institutes of Health Stroke Scale score 14).

View Article and Find Full Text PDF

Most cardiac rhabdomyomas with tuberous sclerosis (TS) are asymptomatic and spontaneously regress. However, some cases require surgical intervention due to arrhythmia and severe obstruction of cardiac inflow or outflow. We report herein a neonatal case of giant cardiac rhabdomyomas with TS and insufficient pulmonary blood flow from the right ventricle.

View Article and Find Full Text PDF

Background: This study of umbilical catheterization deliberate practice training compared skill and knowledge outcomes of umbilical catheterization using a tissue-hybrid simulator (REAL) versus a synthetic simulated umbilical cord task trainer (ART).

Methods: This was a prospective randomized control study. Pediatric residents were randomized to REAL or ART umbilical catheterization deliberate practice training.

View Article and Find Full Text PDF

The further optimization of ER-α degradation efficacy of a series of ER modulators by refining side-chain substitution led to efficacious selective estrogen receptor degraders (SERDs). A fluoromethyl azetidine group was found to be preferred and resulted in the identification of bis-phenol chromene . In a tamoxifen-resistant breast cancer xenograft model, (ER-α degradation efficacy = 97%) demonstrated tumor regression, together with robust reduction of intratumoral ER-α levels.

View Article and Find Full Text PDF

Potent estrogen receptor ligands typically contain a phenolic hydrogen-bond donor. The indazole of the selective estrogen receptor degrader (SERD) ARN-810 is believed to mimic this. Disclosed herein is the discovery of ARN-810 analogs which lack this hydrogen-bond donor.

View Article and Find Full Text PDF

About 75% of breast cancers are estrogen receptor alpha (ER-α) positive, and women typically initially respond well to antihormonal therapies such as tamoxifen and aromatase inhibitors, but resistance often emerges. Fulvestrant is a steroid-based, selective estrogen receptor degrader (SERD) that both antagonizes and degrades ER-α and shows some activity in patients who have progressed on antihormonal agents. However, fulvestrant must be administered by intramuscular injections that limit its efficacy.

View Article and Find Full Text PDF

Neonatal hemochromatosis (NH) is a rare but serious disease causing fulminant hepatic failure. The recurrence rate of NH in a subsequent infant of a mother with an affected infant is 70-90%. Recently, antenatal maternal high-dose intravenous immunoglobulin (IVIG) treatment has been reported to be effective for preventing NH recurrence.

View Article and Find Full Text PDF