Publications by authors named "Mizushima T"

The purpose of this study was the detection and characterization of synergistic muscle activity. Using T-map MRI, T values for 10 forearm muscles in 11 healthy adult volunteers were obtained in the resting state and after isotonic forearm supination and pronation exercises with the elbow extended. T was normalized by Z = (T-T)/SD, where T was T after exercise, while T and SD were the reference values of 34 ms and 3 ms, respectively.

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Mitochondria contribute to cellular metabolism by providing a specialised milieu for energising cells by incorporating and processing the metabolites. However, heterogeneity in the mitochondria within is only partially elucidated. Mitochondria dynamically alter their morphology and functions during the life of animals, in which cells proliferate and grow.

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Superconducting spintronics explores the interplay between superconductivity and magnetism, sparking substantial interest in nonunitary superconductors as a platform for magneto-superconducting phenomena. However, identifying nonunitary superconductors remains challenging. We demonstrate that spin current driven by thermal gradients sensitively probes the nature of the condensate in nonunitary superconductors.

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Aim: The Japanese National Clinical Database, which covers more than 95% of the surgeries performed in Japan, is the largest nationwide database. This is the 2021 annual report of the Gastroenterological Section of the National Clinical Database, which aims to present the short-term outcomes of cases registered in 2021 and discuss significant changes and insights into gastroenterological surgeries observed over the decade.

Methods: We reviewed the data of patients registered in the National Clinical Database between 2012 and 2021.

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  • The study investigated the risk of deep vein thrombosis (DVT) and pulmonary embolism (PE) after two specific endoscopic procedures: colorectal endoscopic submucosal dissection (ESD) and double-balloon endoscopy (DBE).
  • A total of 238 patients were analyzed, finding that DVT occurred in only one patient, resulting in a very low overall incidence of 0.4%, with no cases of PE reported.
  • The results suggest that the risk of DVT and PE following these endoscopic procedures is minimal, indicating they are relatively safe from this complication.
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Malignant lymphoma is a relatively rare complication in patients with ulcerative colitis (UC) and its etiology is unclear. We present a hard-to-diagnose case of Epstein-Barr virus-positive diffuse large B-cell lymphoma in an elderly patient with UC who was treated with the immunomodulator tacrolimus and herbal medicine including indigo naturalis. Because malignant lymphomas can mimic other inflammatory diseases macroscopically, diagnosis in such cases can be challenging.

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  • Cervical cancer screening rates in Japan are low, making prenatal visits an important opportunity for women to undergo cervical cytology tests during pregnancy, according to this study.
  • The study analyzed data from 2,725 participants, revealing that certain factors such as smoking, younger age, lower education levels, and specific sampling methods were linked to higher rates of abnormal cervical results (ASC-US).
  • Results showed that nearly 40% of participants with abnormal results thought they had “no abnormalities,” highlighting the need for better patient education and follow-up for those with detected issues.
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Inflammatory bowel disease (IBD), which includes Crohn's disease (CD) and ulcerative colitis (UC), predominantly affects young patients and leads to intestinal complications. Amyloidosis, which involves abnormal protein deposition, is a serious complication of IBD, with a low incidence. Early detection of subclinical amyloid deposits is crucial for preventing fatal outcomes; however, routine investigations are lacking.

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  • * A nationwide case-control study aimed to estimate the vaccine's effectiveness against advanced cervical lesions (like CIN3+) among women aged 20-26 from 2013 to 2020, revealing a significant risk reduction for vaccinated individuals.
  • * Results showed that vaccinated women had an odds ratio of 0.14 for developing CIN3 or higher compared to unvaccinated women, indicating an 86% effectiveness of the HPV vaccine; notably, none of the squamous cell carcinoma cases were from vaccinated women.
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  • - The study investigates the effectiveness of loop-end ileostomy (EI), introduced in 2021, in reducing stoma outlet obstruction (SOO) in patients undergoing restorative proctocolectomy (RPC) and ileal pouch-anal anastomosis (IPAA), compared to traditional loop ileostomy (LI).
  • - Researchers analyzed 106 patients with diverting ileostomy, finding that EI significantly lowered the incidence of SOO (odds ratio 0.18) despite similar patient characteristics and surgery factors between the two groups.
  • - The conclusion suggests that EI is a promising approach to minimize SOO complications following RPC and IPAA, particularly in more complex anastomosis cases.
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  • The protein PNGase helps manage other proteins by getting rid of the bad ones in our cells.
  • A mutation in the gene for PNGase can lead to a condition called NGLY1 deficiency, which is not good for health.
  • Scientists found out more about a related protein called FBS2, which might be a good target for new drugs to help treat NGLY1 deficiency.
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Aim: The purpose of this study was to examine the trend in human papillomavirus (HPV) vaccination rates in Japan before and after a policy change in 2022, involving resumption of active recommendation and start of catch-up vaccination.

Methods: From 2021 to 2023, a web-based questionnaire survey was administered to newly enrolled female college students in Yokohama, Japan. The questionnaire included items such as age, HPV vaccination status, HPV vaccine awareness, and awareness of catch-up vaccination.

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Introduction: Primary small bowel carcinoma in pregnant women is extremely rare. Small bowel cancer is difficult to diagnose because of its rarity, lack of specific clinical symptoms, and particular anatomical features. We experienced a case of primary small bowel adenocarcinoma with ovarian metastasis during pregnancy.

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Introduction: Bisphosphonates and denosumab increase bone mineral density (BMD) for osteoporosis treatment in patients with aromatase inhibitor-associated bone loss (AIBL). This study aimed to directly compare bisphosphonates with denosumab in treating patients with AIBL and to determine the effect of denosumab on the trabecular bone score (TBS).

Materials And Methods: Thirty-nine patients with AIBL receiving osteoporosis treatment (21 in the bisphosphonates group and 18 in the denosumab group) were retrospectively evaluated for changes in lumbar spine and femoral BMD, lumbar spine bone quality (assessed by TBS), and blood bone metabolic markers.

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Key Clinical Message: In younger patients, including those with extensive infarction involving the anterior and middle cerebral artery regions of the right hemisphere, appropriate treatment for rare causes and goal-oriented long-term rehabilitation could improve severe hemiplegia and higher brain dysfunction, and allow for further education and employment.

Abstract: Although the number of young stroke patients is small, many have serious sequelae and rare causes. In addition to independence in activities of daily living, education and employment are desired.

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  • The study aimed to determine whether sarcopenia, a condition characterized by loss of skeletal muscle mass, affects survival rates in patients with platinum-resistant recurrent ovarian cancer.
  • It involved 52 patients whose body composition was analyzed using abdominal CT scans, revealing that sarcopenia negatively impacts overall survival, with a hazard ratio of 1.93 indicating almost double the risk of shorter survival.
  • Subgroup analyses showed sarcopenia was a significant risk factor especially in patients with elevated CA125 levels and a higher neutrophil-to-lymphocyte ratio, further emphasizing its role in patient prognosis.
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Objective: To investigate whether robotic surgery (RS) decreases the risk of circumferential resection margin (CRM) positivity compared with conventional laparoscopic surgery (LS) in patients with rectal cancer (RC) undergoing mesorectal excision (ME).

Background: Although it is well known that CRM positivity affects postoperative outcomes in patients with RC undergoing ME, few studies have investigated whether RS is superior to conventional LS for the risk of CRM positivity.

Methods: We performed a comprehensive electronic search of the literature up to December 2022 to identify studies that compared the risk of CRM positivity between patients with RC undergoing robotic and conventional laparoscopic surgery.

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Antenatal cervical screening aims to detect cervical intraepithelial neoplasms as precancerous lesions and invasive cervical cancer. Whether this screening is performed routinely during pregnancy varies depending on each country's screening participation rates, guidelines, and the risks to the pregnant woman. In some countries with the high rate of routinely implemented cervical screening among the target women, women are recommended to defer cervical screening intentionally to post-delivery, though having screening in consultation with physicians may be possible if routine screening overlaps.

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Emerging evidence indicates that androgen receptor (AR) signaling plays a critical role in the pathogenesis of male-dominant urothelial cancer. Meanwhile, latrophilins (LPHNs), a group of the G-protein-coupled receptor to which a spider venom latrotoxin is known to bind, remain largely uncharacterized in neoplastic diseases. The present study aimed to determine the functional role of LPHN3 (encoded by the ADGRL3 gene), in association with AR signaling, in urothelial tumorigenesis.

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Nitric oxide (NO) plays a physiological role in signal transduction and excess or chronic NO has toxic effects as an inflammatory mediator. NO reversibly forms protein S-nitrosylation and exerts toxicological functions related to disease progression. DNA methyltransferases, epigenome-related enzymes, are inhibited in enzymatic activity by S-nitrosylation.

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Background: Pouch-related complications (PRCs), such as pelvic abscesses and perianal complex fistulas, can occur after ileal pouch-anal anastomosis (IPAA) in ulcerative colitis (UC). They are often difficult to treat and require salvage surgery. We report two cases of PRC associated with fistulas.

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The purpose of this study was the detection and characterization of synergistic muscle activity. Using T-map MRI, T values for 10 forearm muscles in 11 healthy adult volunteers were obtained in the resting state and after isotonic forearm supination and pronation exercises with the elbow extended. T was normalized by Z = (T-T)/SD, where T was T after exercise, while T and SD were the reference values of 34 ms and 3 ms, respectively.

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Over one-third of stroke survivors develop aphasia, and language dysfunction persists for the remainder of their lives. Brain language network changes in patients with aphasia. Recently, it has been reported that phase synchrony within a low beta-band (14-19 Hz) frequency between Broca's area and the homotopic region of the right hemisphere is positively correlated with language function in patients with subacute post-stroke aphasia, suggesting that synchrony is important for language recovery.

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Background/aim: Although certain treatment options exist for intestinal incontinence, none are curative. Adipose-derived stem cells (ADSCs) have emerged as promising therapeutic agents, but most preclinical studies of their effectiveness for anal function have used autologous or allogeneic ADSCs. In this study, the effectiveness, timing of administration, and required dosage of human ADSCs were investigated for clinical application.

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