Publications by authors named "Ohashi M"

Proximal gastrectomy (PG) has reemerged as a viable surgical option for managing proximal gastric cancer and gastroesophageal junction cancer, particularly for early-stage tumors, offering potential advantages over total gastrectomy (TG). This review examines the evolution of PG, emphasizing surgical techniques and outcomes. Although PG was initially abandoned due to postoperative complications such as reflux esophagitis, advances in reconstruction methods, such as the double-flap technique and double-tract reconstruction, have significantly improved patient quality of life and reduced complications.

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Background: Ensuring a pathologically negative distal margin (DM) and preserving a larger remnant stomach is important for proximal gastrectomy (PG) in patients with esophagogastric junction (EGJ) cancer. However, the minimum DM length for ensuring negative margins has not been identified.

Methods: We enrolled patients undergoing PG or total gastrectomy for EGJ cancer.

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Background: Chronic kidney disease (CKD) represents a significant public health challenge, with rates consistently on the rise. Enhancing kidney function prediction could contribute to the early detection, prevention, and management of CKD in clinical practice. We aimed to investigate whether deep learning techniques, especially those suitable for processing missing values, can improve the accuracy of predicting future renal function compared to traditional statistical method, using the Japan Chronic Kidney Disease Database (J-CKD-DB), a nationwide multicenter CKD registry.

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In modern society, many workers struggle with sleep deprivation due to their work schedules and excessive workloads. Accurate self-awareness and self-monitoring abilities are crucial for workers to adopt risk-coping strategies and protective behaviors when fatigued. The current study examined the relationship between chronotypes and self-monitoring performance during 24 h of sleep deprivation.

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Background: Telesurgery has been made increasingly possible with the advancements in robotic surgical platforms and network connectivity. However, long-distance transnational complex robotic surgeries such as gastrectomy have yet to be attempted.

Methods: Multiple transnational network connections by Science Innovation Network (SINET), Japan Gigabit Network (JGN), and Arterial Research and Education Network in Asia-Pacific (ARENA-PAC) were established and tested by multiple surgeons in a dry box model.

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Spinal cord injuries (SCIs) can lead to severe neuropathic pain and increased risk of myocardial infarction and heart failure; therefore, the use of analgesics against SCI-induced pain should be minimized because of their adverse effects on the cardiovascular system. Ivabradine, a blocker of hyperpolarization-activated cyclic nucleotide-gated cation (HCN) channels, is used as a bradycardic agent, but recent studies focused on it as an analgesic agent for peripheral neuropathic pain. However, the analgesic effects of ivabradine on central neuropathic pain, such as SCI-induced pain, have not been examined.

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Background: The standard adjuvant chemotherapy regimen for stage III gastric cancer is docetaxel plus S-1 (DS) based on the results of the START-II trials. However, in clinical practice some patients could not continue this intensive doublet chemotherapy because of limited tolerability. This study aimed to assess the practical feasibility of DS and elucidate the predictive factors for the completion of adjuvant DS therapy.

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Aim: This study examines the impact of COVID-19 pandemic-induced behavioral restrictions on child psychiatric inpatients in Japan, particularly focusing on limitations placed on outings and overnight stays as infection-control measures.

Methods: Data were collected from inpatients from the children's mental health registry between January 2016 and December 2022. The clinical data, such as age, gender, diagnosis, result of polymerase chain reaction (PCR) tests, frequency of outings and overnight stays before and after the pandemic, were compared.

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Purpose: We performed a combined assessment of skeletal muscle mass using the skeletal muscle mass index (SMI) and the psoas muscle index (PMI) to evaluate their association with the overall survival (OS) of gastric cancer patients after curative gastrectomy.

Methods: We analyzed, retrospectively, the computed tomography records of skeletal muscle mass of patients who underwent radical gastrectomy for pStage I-III gastric cancer between April, 2010 and April, 2016. We then compared OS as the primary outcome, stratifying patients according to their SMI or PMI, and investigated prognostic factors using multivariate analyses.

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Article Synopsis
  • CO capture technology can help reduce greenhouse gas emissions and combat global warming through electrochemical processes that operate at normal conditions.
  • The study highlights the successful use of a trinuclear Zn(II) complex (ZnL) combined with an ionic liquid, which allowed for efficient CO fixation and release cycles, outperforming traditional alkaline solutions.
  • This novel approach managed to capture about 46% of CO from air containing only 450 ppm CO, suggesting significant potential for improved CO capture methods.
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  • Laparoscopic gastrectomy (LG) is a less invasive surgical option for older patients with locally advanced gastric cancer, aiming to improve postoperative outcomes.
  • A study compared the effects of LG and open gastrectomy (OG) on skeletal muscle maintenance and body weight in patients aged 75 and older, finding that LG patients had better preservation of these metrics post-surgery.
  • The results suggest that LG is particularly beneficial for certain subgroups of older patients, maintaining muscle mass and weight more effectively than OG.
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  • * The research included 4,663 patients who had radical gastrectomy for stages I-III gastric cancer, categorizing their preoperative prealbumin and C-reactive protein (CRP) levels to establish PPS scores, with lower scores indicating poorer survival.
  • * Results showed that a higher PPS correlated with worse overall survival, with scores of one and two being independent indicators of poor prognosis, suggesting that PPS can better identify at-risk patients compared to mGPS after surgery
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Background: Patients aged >80-years-old with gastric cancer are commonly excluded from clinical trials, and no consensus exists regarding surgical indications and outcomes in older patients. In this study, we analyzed the post-gastrectomy long-term survival and etiologies of mortality in older patients with gastric cancer.

Methods: Patients aged >80-years-old with pathological stages I-III primary gastric cancer who undergone radical gastrectomies, between May 2006 and March 2017, were included in the study.

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Background: It is essential to ensure optimal adherence to adjuvant chemotherapy regimens following gastric cancer surgery. However, treatment intensity for S-1 as adjuvant chemotherapy has not as yet been compared between minimally invasive (MI) and open (Open) surgery.

Methods: We retrospectively compared dose modification of adjuvant S-1 between MI and Open surgery in patients undergoing R0 gastrectomy for gastric or esophago-gastric junction cancer at the Cancer Institute Hospital Tokyo, Japan, during the period from 2012 to 2022, and receiving S-1 for pStage II or S-1 plus docetaxel for pStage III as adjuvant chemotherapy.

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Non-conventional yeasts are increasingly being used in the production of fermented beverages owing to their ability to create unique and high-quality products. The yeast Lachancea thermotolerans is of great industrial significance, particularly in the production of l(+)-lactic acid, which is beneficial for acidifying wine, beer, and potentially sake. To explore its potential in sake brewing, three L.

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  • - This study investigated factors predicting persistent swallowing difficulties (dysphagia) after a stroke, focusing on parameters related to muscle loss (sarcopenia) in 302 patients diagnosed with cerebral infarction or hemorrhage.
  • - Key findings indicated that older age, lower tongue pressure, and weaker grip strength were significant predictors of dysphagia at discharge, while other factors like sex and skeletal muscle mass index did not show a strong correlation.
  • - The research concluded that muscle strength is a better indicator of ongoing dysphagia than muscle mass, highlighting the importance of evaluating muscle function in stroke recovery.
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  • Space prescribing is a healthcare approach that emphasizes the importance of physical environments, beyond traditional clinical settings, in promoting health and managing diseases, particularly cardiovascular and mental health conditions.
  • This method encourages the use of natural and built environments to enhance well-being, incorporating social prescribing by linking patients to community-based activities that improve overall health.
  • The review underscores the need for an integrated strategy that acknowledges cultural ecosystem services, with the goal of reducing health disparities and improving quality of life through better-designed urban and rural spaces.
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Aim: To evaluate Hyuganatsu oranges (Citrus tamurana Hort. Ex Tanaka) derived arabinogalactan for bone turnover, we performed a randomized placebo-controlled trial.

Methods: Sixty-three postmenopausal women were age-stratified and randomly assigned to receive arabinogalactan-rich hyuganatsu juice (study group) or a placebo drink (control group) for 90 days.

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Epstein-Barr virus (EBV) is a ubiquitous oncogenic virus associated with multiple cancers and autoimmune diseases. Unlike most herpesviruses, EBV reactivation from latency occurs asymptomatically, allowing it to spread efficiently to other hosts. However, available models are limited by the inefficient and asynchronous reactivation from latency into lytic replication.

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The complement system plays an important role in biological defense as an effector to eliminate microorganisms that invade an organism and it is composed of more than 50 proteins, most of which are produced in the liver. Of these proteins, the mRNA expression of C3 and Cfb is known to be positively regulated by the nuclear receptor HNF4α. To investigate whether HNF4α regulates the complement system, we analyzed the hepatic expression of genes involved in the complement activation pathway and membrane attack complex (MAC) formation within the complement system using liver-specific Hnf4a-null mice (Hnf4a mice) and tamoxifen-induced liver-specific Hnf4a-null mice (Hnf4a mice).

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Background: Proximal gastrectomy (PG) is recommended for upper-third gastric cancer and esophagogastric junction (EGJ) cancer, preserving organ function while reducing postoperative symptoms. The double-flap technique (DFT) is one approach to minimize reflux after PG. However, laparoscopic PG with DFT (LPG-DFT) has drawbacks of increased complexity, such as hand sutures for anastomosis.

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We assessed the association of employee lifestyles (e.g., smoking, exercise, drinking, and sleep habits) with mental health-related absenteeism and turnover rates utilizing data from the annual Health and Productivity Management survey by Japan's Ministry of Economy, Trade and Industry.

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Primary spinal cord gliomas are rare and are associated with high mortality. Unlike brain tumors, the clinicopathological features of spinal cord gliomas are not well defined. We analyzed clinical, histopathology, and immunohistochemical features and overall survival (OS) of 25 patients with primary spinal cord gliomas treated between 1994 and 2023 at 4 institutions.

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  • - Using 3D image analysis, researchers studied changes in thoracic ossification of the posterior longitudinal ligament (OPLL) after surgery in 17 patients, finding that while overall volume didn't change much, 41% experienced a reduction in volume.
  • - Post-surgery results showed that although the width and length of OPLL increased significantly, its thickness decreased from 7.1 mm to 6.5 mm.
  • - The study concluded that thoracic OPLL becomes thinner and spreads out after surgery, with volumetric changes related to the movement of the dural sac.
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