Publications by authors named "MORISAWA S"

Purpose: To investigate the relationships among eye dimensions in magnetic resonance imaging (MRI) scans by sex, age, and strabismus type in Japanese patients with acquired strabismus and high myopia.

Study Design: Retrospective clinical case series.

Methods: We included 58 eyes of 29 patients with acquired strabismus and high myopia (mean age ± standard deviation: 60.

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  • Exosome-like nanoparticles (ELNs) were isolated from the dried rhizome of Atractylodes lancea and studied for their potential to treat neuroinflammation.
  • BV-2 microglial cells showed the capability to internalize these nanoparticles, which contained microRNAs that could reduce inflammation.
  • ALR-ELN treatment significantly lowered pro-inflammatory markers in microglial cells exposed to lipopolysaccharide (LPS), suggesting their potential as therapeutic agents in neuroinflammatory conditions.
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  • Aberrant melanin overproduction can lead to physical and psychological issues, highlighting the need for safer melanin synthesis inhibitors with fewer side effects.
  • Recent research has explored plant-derived exosome-like nanoparticles (ELNs) as a potential solution, specifically those extracted from the rhizome of a plant.
  • These nanoparticles were shown to significantly reduce melanin levels and inhibit the expression of melanin-producing enzymes in melanoma cells, suggesting their potential as a new topical treatment after further research and optimization.
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  • Exosome-like nanoparticles (ELNs) derived from Allium tuberosum (A-ELNs) can effectively reduce inflammation in microglial cells, indicating potential as treatments for neuroinflammation-related diseases.
  • A-ELNs displayed a size of approximately 145 nm and showed a specific miRNA profile, leading to decreased levels of nitric oxide and inflammatory cytokines in cells treated with lipopolysaccharide (LPS).
  • The combination of A-ELNs with the anti-inflammatory drug dexamethasone (creating Dex-A-ELNs) resulted in an even greater reduction of inflammation, highlighting their potential as drug-delivery systems in therapeutic applications.
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Purpose: We evaluated long-term changes in conjunctival bulge after medial rectus muscle (MR) tightening using the plication method.

Study Design: Retrospective and observational.

Methods: Patients who underwent MR plication for exotropia from December 2016-March 2020 at Okayama University Hospital were included.

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  • Nerve inflammation is associated with various neurological disorders, and this study investigates the effects of Glycyrrhizae Radix on related conditions in a mouse model.
  • Treatment with Glycyrrhizae Radix significantly reduced both the duration of loss of righting reflex induced by pentobarbital and the production of inflammatory markers like interleukin-1β and tumor necrosis factor-alpha in nerve cells.
  • The active compounds glycyrrhizic acid and liquiritin in Glycyrrhizae Radix show potential as therapeutic agents for treating neurological disorders caused by nerve inflammation.
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  • Hyponatremia is a common electrolyte issue in cancer patients undergoing chemotherapy, leading to serious health risks and higher mortality rates.
  • A study examined the connection between hyponatremia, various anticancer drugs (especially cisplatin, pemetrexed, and etoposide), and different cancer types using data from Japan's Adverse Drug Event Report database.
  • The findings indicate that particularly patients with lung, oesophageal, and renal cancers are at risk, especially women and the elderly, highlighting the need for careful monitoring during cisplatin treatment.
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  • Bevacizumab, an effective cancer treatment by inhibiting VEGF, can lead to serious adverse effects, including central nervous system (CNS) ischemia, which may result in death or disability.
  • Significant links were found between bevacizumab usage and CNS ischemia, especially in patients with glioma, with many cases occurring beyond 30 days post-treatment.
  • The study emphasizes the need for careful patient evaluation and continuous monitoring of blood pressure during treatment to mitigate risks associated with CNS ischemia, particularly in elderly patients.
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  • The study examined gastrointestinal bleeding events linked to BCR-ABL tyrosine kinase inhibitors (TKIs) using data from the Japanese Adverse Drug Event Report database, focusing on age, sex, and prescription numbers from 2004 to 2020.
  • Significant bleeding events were associated with dasatinib and imatinib, with dasatinib showing a notably higher risk, especially in patients over 60 and among males.
  • The findings help in recognizing and managing TKI-related gastrointestinal bleeding, highlighting the need to consider specific TKIs and patient characteristics in treatment plans.
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  • In obese patients with type 2 diabetes, reduced insulin sensitivity and increased inflammation contribute to muscle atrophy due to decreased protein synthesis and increased breakdown.
  • Juzentaihoto (JTT), a herbal medicine, was found to alleviate muscle atrophy in a study with mouse models of obesity and type 2 diabetes, showing increased muscle weight and improved exercise performance after administration.
  • The findings indicate that JTT can enhance insulin sensitivity, reduce inflammation, and combat oxidative stress, potentially leading to better management of muscle atrophy in obese patients with type 2 diabetes.
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  • Aggression is a common side effect of antiepileptic drugs (AEDs), with this study focusing on its association with various AEDs using the Japanese Adverse Drug Event Report database from 2004 to 2020.
  • Significant aggressive behavior was linked to specific drugs such as perampanel, levetiracetam, and others, with notable risk factors identified for younger patients (<60 years) on levetiracetam.
  • The findings highlight the importance of monitoring aggression in patients using AEDs to help mitigate this adverse effect during treatment.
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Neuroinflammation is associated with the development of hypoactive delirium, which results in poor clinical outcomes. Drugs effective against hypoactive sur have not yet been established. Yokukansan has an anti-neuroinflammatory effect, making it potentially effective against hypoactive delirium.

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  • Sarcopenic obesity leads to increased visceral fat, reduced muscle mass, and lower insulin sensitivity, contributing to inflammation and oxidative stress.
  • The study tested herbal medicine, specifically hot water Saikokeishikankyoto (SKK), and found it enhances sirtuin 1 (sirt1) transcription, suggesting potential therapeutic effects for type 2 diabetic obesity.
  • In vivo results showed that SKK increased muscle weight and fiber content, improved motor function, reduced inflammatory markers, and suggested a role in preventing muscle atrophy in KKAy mice, indicating promising clinical applications for sarcopenic obesity.
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  • Poor adherence to medication in heart failure patients leads to worse health outcomes, and social support may help improve adherence.
  • This study examined the types of social support that enhance medication adherence and which patient characteristics benefit the most from that support.
  • Findings indicated that assisted living support once a week significantly improved medication adherence, especially in patients with dementia, suggesting its importance in managing heart failure, particularly in aging populations.
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Individual differences in gut microbiota can affect the pharmacokinetics of drugs. Yokukansan is a traditional Japanese kampo medicine used to treat peripheral symptoms of dementia and delirium. A study examining the pharmacokinetics of the components of yokukansan reported large individual differences in the pharmacokinetics of glycyrrhizic acid (GL).

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Background: Use of 5-aminolevulinic acid for photodynamic malignant tumor diagnosis reportedly causes intraoperative hypotension (systolic blood pressure < 70 mmHg) during urologic surgery. However, its association with intraoperative hypotension in malignant glioma surgery and underlying mechanisms has not yet been elucidated..

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Nilotinib is used as standard treatment in managing chronic myeloid leukaemia (CML). A 23-year-old man with CML and on nilotinib was admitted to the intensive care unit due to respiratory failure. Three years prior, he developed pleural effusion from dasatinib therapy thus, his CML regimen was changed to nilotinib.

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Purpose: To describe our surgical outcomes using a novel muscle transposition procedure, or double-under muscle transposition (DUT), in the treatment of paralytic strabismus.

Methods: In this surgery, the split halves of the superior and inferior rectus muscles opposite the paralyzed muscle are disinserted, crossed under both the remaining half and the paralyzed muscle, and anchored at opposite corners of the insertion of the paralyzed muscle. The medical records of consecutive patients who underwent DUT were retrospectively reviewed.

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Background: Delirium in patients with acute decompensated heart failure (ADHF) is associated with poor clinical outcomes. Although some medications have been reported as risk factors for delirium, their impact on patients with ADHF is still unclear. This study aimed to determine the association of specific medication use with delirium and their additive predictive value in models based on conventional risk factors.

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Sarcopenia is a disease whose symptoms include decreased muscle mass and weakened muscle strength with age. In sarcopenia, decreased production of insulin-like growth factor-1 (IGF-1) increases ubiquitin ligases, such as Atrogin1 and Muscle RING-Finger Protein-1 (MuRF1), by activating forkhead box O (FOXO), and inflammatory cytokines and oxidative stress increase the expression of ubiquitin ligases by activating the transcription factor nuclear factor-kappa B (NF-κB). In addition, increased levels of ubiquitin ligases cause skeletal muscle atrophy.

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Purpose: To determine the frequency, symptoms and risk factors for adverse reactions to two-times instillation of 1% cyclopentolate in children.

Study Design: Prospective, observational study.

Methods: The subjects were 646 patients who underwent cycloplegic refraction with cyclopentolate (mean age; 7.

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Yokukansan is a Kampo formula that is commonly used by the elderly because it is expected to improve peripheral symptoms of dementia and delirium. However, side effects from its use are frequently reported in the elderly. In particular, pseudoaldosteronism caused by the licorice contained in yokukansan leads to hypertension, hypokalemia, and muscle weakness, which may result in death.

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The purpose of this study was to derive new formulas to provide an optimal surgical procedure and optimal amount of recession-resection (RR) surgery in intermittent exotropia (IXT) with a disparity in angle of deviation depending on the fixation distance. The records of 117 consecutive patients with IXT who underwent RR surgery between March 2008 and December 2011 at Okayama University Hospital were retrospectively examined. Multivariable linear regression analysis was performed using the observed corrective angle of deviation at distance or near fixation as the dependent variable, and amounts of lateral rectus muscle (LR) recession (mm) and medial rectus muscle (MR) resection, and age at surgery (years) as independent variables.

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High-performance/low-cost platinum (Pt)-based electrocatalysts have been established by top-coating both sides of a titanium plate with Pt nanoparticles. The average diameter of the Pt nanoparticles used in this study is approximately 100 nm. Three types of Pt top-coated Pt/Ti electrocatalysts, each having different top-coated Pt layer thicknesses, are prepared.

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Background: To detect significant factors associated with excessive postoperative exo-drift in young patients with intermittent exotropia who had undergone unilateral lateral rectus muscle recession and medial rectus muscle resection.

Methods: We retrospectively examined the records of 64 consecutive patients < 18 years old who underwent surgery between April 2004 and December 2011. We sought risk factors for excessive postoperative exo-drift among patients' demographic and clinical characteristics using univariate and multivariable linear regression analysis.

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