Publications by authors named "Yu Matsumoto"

Article Synopsis
  • * Out of 241 participants, over half (55.2%) were identified as having insomnia, exhibiting significantly worse scores in mental health assessments compared to those who slept well.
  • * The study found that specific sleep hygiene practices, particularly the recommendations from the Japanese Government, can impact insomnia, suggesting that clinicians can enhance treatment by applying effective stimulus control techniques.
View Article and Find Full Text PDF

Cholesteatoma is a benign tumor of the middle ear. Tympanoplasty is performed to remove cholesteatoma, prevent recurrence, and avoid complications. Previously, microscopy was used for tympanoplasty; however, endoscopy has become increasingly popular for this procedure.

View Article and Find Full Text PDF
Article Synopsis
  • * This study involved 163 HCC patients who underwent liver resection, revealing that low preoperative s-CK levels (below 91 U/l) correlated with worse overall and recurrence-free survival rates.
  • * The analysis indicated that low s-CK acts as an independent risk factor for poor survival outcomes, particularly in male patients, suggesting it could serve as a valuable prognostic biomarker for HCC.
View Article and Find Full Text PDF

Midkine (MK) is a soluble cytokine, and its serum levels strongly correspond to protein expression levels in tumors. The present study aimed to clarify the clinicopathological and prognostic significance of serum MK (s-MK) in patients with hepatocellular carcinoma (HCC). Serum samples were obtained before surgery from 123 patients with HCC who had undergone surgery between January 2012 and December 2020.

View Article and Find Full Text PDF

A hallmark of fetal alcohol spectrum disorders (FASD) is neurobehavioral deficits that still do not have effective treatment. Here, we present that reduction of Apolipoprotein E (APOE) is critically involved in neurobehavioral deficits in FASD. We show that prenatal alcohol exposure (PAE) changes chromatin accessibility of Apoe locus, and causes reduction of APOE levels in both the brain and peripheral blood in postnatal mice.

View Article and Find Full Text PDF

Background: Given the global shortage of child psychiatrists and barriers to specialized care, remote assessment is a promising alternative for diagnosing and managing attention-deficit/hyperactivity disorder (ADHD). However, only a few studies have validated the accuracy and acceptability of these remote methods.

Objective: This study aimed to test the agreement between remote and face-to-face assessments.

View Article and Find Full Text PDF

We establish the new podocerid genus Capropodocerus gen. nov. for the two new species Capropodocerus tagamaru gen.

View Article and Find Full Text PDF

Attention-deficit hyperactivity disorder (ADHD) is characterized by persistent symptoms of inattention, hyperactivity, and impulsivity. Both, stimulant and nonstimulant medications have been approved for the treatment of this disorder. Several Western guidelines recommend the use of prescribed Food and Drug Administration (FDA)-approved medications for ADHD along with parental training in behavior management and behavioral classroom intervention.

View Article and Find Full Text PDF

Background/purpose: To investigate the safety of laparoscopic liver resections (LLRs) for high-risk patients (HRs) with preoperative comorbidities affecting the heart, lungs, kidneys, glucose tolerance, and central nervous system.

Methods: This retrospective study included 585 patients who had undergone total hepatectomies from 2006 to 2020. Among them, 239 patients underwent LLRs, and 349 underwent open liver resections (OLRs).

View Article and Find Full Text PDF
Article Synopsis
  • Hand-assisted laparoscopic surgery (HALS) has emerged as a useful option in laparoscopic liver resection (LLR), but the factors influencing conversion to HALS are not well understood.
  • A study analyzed data from patients undergoing LLR from 2011 to 2020, revealing that conversion to HALS occurred in 11.2% of cases, mainly due to failure to progress during surgery and other complications.
  • The analysis identified that tumors located in segments 7 or 8 are significant predictors for conversion to HALS, which showed comparable outcomes to pure LLR in terms of blood loss, operation time, hospital stay, and severe complications.
View Article and Find Full Text PDF
Article Synopsis
  • Many female mammals, including rodents, have cyclical reproductive behaviors that are influenced by reproductive hormones and circadian rhythms.
  • Disruption in these circadian rhythms can negatively affect estrous cycles, leading to fewer pregnancies in mice.
  • Extending the length of daylight by just 2 hours can normalize estrous cycles in mice, suggesting that increasing light exposure may enhance reproductive success.
View Article and Find Full Text PDF

An endogenous retrovirus-derived membrane protein, syncytin (SYN), contributes to placental function via trophoblast fusion. Multinuclear trophoblasts (syncytiotrophoblasts) physically and functionally mediate the interaction between fetal and maternal vessels in various ways. Suncus murinus (suncus) is a small mammalian species with a pregnancy duration of approximately 30 days, 1.

View Article and Find Full Text PDF

Multi-arm star-shaped block copolymers with precisely tuned nano-architectures are promising candidates for drug delivery. Herein, we developed 4- and 6-arm star-shaped block copolymers consisting of poly(furfuryl glycidol) (PFG) as the core-forming segments and biocompatible poly(ethylene glycol) (PEG) as the shell-forming blocks. The polymerization degree of each block was controlled by adjusting the feeding ratio of a furfuryl glycidyl ether and ethylene oxide.

View Article and Find Full Text PDF
Article Synopsis
  • - A 70-year-old woman diagnosed with metastatic pancreatic tail carcinoma developed Sister Mary Joseph's nodule (SMJN) after undergoing chemotherapy treatment, resulting in deteriorating health and severe anemia.
  • - The patient experienced significant symptoms including bleeding from the umbilical tumor, which impaired her daily activities and required multiple blood transfusions.
  • - A surgical resection of the SMJN was performed to alleviate bleeding and improve quality of life, leading to a successful recovery; however, she passed away 59 days post-surgery, yet lived without pain or bleeding until then.
View Article and Find Full Text PDF

Objective: This retrospective study aimed to evaluate the performance of machine learning techniques in predicting air-bone gap after tympanoplasty compared with conventional scoring models and to identify the influential factors.

Methods: We reviewed the charts of 105 patients (114 ears) with chronic otitis media who underwent tympanoplasty. Two numerical scoring systems (middle ear risk index [MERI] and ossiculoplasty outcome parameter staging [OOPS]) and three algorithms (random forest [RF], support vector machine [SVM], and k nearest neighbor [kNN]) were created.

View Article and Find Full Text PDF

Assessment of drug activation and subsequent interaction with targets in living tissues could guide nanomedicine design, but technologies enabling insight into how a drug reaches and binds its target are limited. We show that a Hoechst-based reporter system can monitor drug release and engagement from a nanoparticle delivery system and , elucidating differences in target-bound drug distribution related to drug-linker and nanoparticle properties. Drug engagement is defined as chemical detachment of drug or reporter from a nanoparticle and subsequent binding to a subcellular target, which in the case of Hoechst results in a fluorescence signal.

View Article and Find Full Text PDF

Purpose: To evaluate the predictors of a difficult Pringle maneuver (PM) in laparoscopic liver resection (LLR) and to assess alternative procedures to PM.

Methods: Data from patients undergoing LLR between 2013 and 2020 were reviewed retrospectively. Univariate and multivariate analyses were performed and the outcomes of patients who underwent PM or alternative procedures were compared.

View Article and Find Full Text PDF
Article Synopsis
  • Researchers developed a new stealth radiation sensitizer made of gold-embedded polymer nanogels (Au MIP-NGs) to enhance low-dose X-ray radiation therapy for cancer treatment.
  • The Au MIP-NGs were effective in recognizing and binding to the protein human serum albumin, leading to a protein corona that improved their stealth capabilities and treatment efficiency.
  • In mouse models of pancreatic cancer, injecting Au MIP-NGs not only boosted the effectiveness of radiation therapy at low doses but also shows promise for use in other cancer treatments and diagnostics.
View Article and Find Full Text PDF

Sterol regulatory element-binding proteins (SREBPs) are transcription factors that regulate various genes involved in cholesterol and fatty acid synthesis. In this study, we describe that naturally occurring isothiocyanate sulforaphane (SFaN) impairs fatty acid synthase promoter activity and reduces SREBP target gene (e.g.

View Article and Find Full Text PDF

Regulation of nanomaterial-cell interaction is an important requisite for a variety of biomedical applications such as drug delivery systems and theranostics. Here, we demonstrate the regulation of nanomaterial-cell interaction using the oriented adsorption of intrinsic immunoglobulin G (IgG) on molecularly imprinted polymer nanogels (MIP-NGs) capable of recognizing the fragment crystallizable (Fc) domain of IgG. The unique domain recognition property resulted in the suppression of the immune response in Fc domain receptor-possessing macrophages and natural killer cells due to the regulation of protein corona based on the oriented adsorption of IgG.

View Article and Find Full Text PDF

The secretory glycoprotein lactoferrin (LF) is suggested to ameliorate overweight regardless of non-genetic or genetic mechanisms. Although maternal overweight represents a key predictor of offspring growth, the efficacy of LF on fertility problems in overweight and obese mothers remains unknown. To address this issue, we examined the effect of LF ingestion by analyzing overweight mice (Institute of Cancer Research (ICR) mice with high-fat diets; HF mice) and obese mice (-deficient mice with type II diabetes; mice).

View Article and Find Full Text PDF
Article Synopsis
  • Ferric citrate hydrate (FC) is used to manage high phosphate levels in patients with chronic kidney disease and was studied for its long-term safety and effectiveness in a Japanese population.
  • In a study involving over 2,700 patients, some discontinued FC due to adverse events, but overall, the treatment effectively lowered serum phosphorus levels for up to 104 weeks.
  • The study found no new safety issues and confirmed that FC has a similar safety profile to earlier trials, with most patients maintaining safe iron levels.
View Article and Find Full Text PDF

Pulmonary pleomorphic carcinoma, a relatively rare histopathological subtype of non-small cell lung cancer, is a malignant neoplasm with a poor prognosis. Despite the reports of a good response to immune-checkpoint inhibitor, only a few reports of pembrolizumab as the first-line treatment exist. We report the case of a 78-year-old male with right lung mass, mediastinal, right neck, and supraclavicular lymphadenopathies.

View Article and Find Full Text PDF

Background: Real-world outcomes of nivolumab treatment for gastric cancer and associated prognostic factors remain unclear; the present study aimed to evaluate both items.

Methods: A total of 278 consecutive patients treated with nivolumab for gastric cancer during 2017-2019 were enrolled in this multi-institutional retrospective cohort study. The impact of laboratory findings, immune-related adverse events (irAEs), and clinicopathological factors on long-term survival was evaluated using the Cox proportional hazards model.

View Article and Find Full Text PDF