Publications by authors named "Yonemitsu K"

Background/aim: Reduction in skeletal muscle mass during chemotherapy is associated with poor outcomes. This study investigated the impact of changes in the psoas muscle index (PMI) on the prognosis of patients with unresectable colorectal liver metastases (CRLM) undergoing chemotherapy, including subgroup analyses based on the initial treatment response assessment.

Patients And Methods: We evaluated 47 patients with unresectable CRLM who underwent systematic chemotherapy and assessed changes in PMI to determine their prognosis.

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Orientia tsutsugamushi (OT) is an obligate intracellular bacterium transmitted by larval trombiculid mites, responsible for scrub typhus in humans. In Japan, approximately 500 human cases are reported annually, with six major serotypes identified as Kato, Karp, Gilliam, Irie/Kawasaki, Shimokoshi, and Hirano/Kuroki. However, the prevalence of OT in Yamaguchi prefecture remains largely unknown.

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Chicken is a potent source of infection in humans. Occasionally, patients with severe enteritis require antimicrobial therapy. Antimicrobials are used to prevent and treat bacterial infections in broiler and breeder farms.

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Background: Rectal gastrointestinal stromal tumors (GISTs) complicate surgical approaches because of their anatomical position. We herein report a patient with rectal GIST on the anterior wall of the lower rectum, hat was successfully resected using a transperineal approach.

Case Presentation: This report describes a unique case of a 73-year-old man who was diagnosed with rectal GIST on the anterior wall of the lower rectum.

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Unlabelled: There are four genogroups and 18 genotypes of human sapoviruses (HuSaVs) responsible for acute gastroenteritis. To comprehend their antigenic and virological differences, it is crucial to obtain viral stocks of the different strains. Previously, we utilized the human duodenum-derived cell line HuTu80, and glycocholate, a conjugated bile acid, to replicate and propagate GI.

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Background/aim: In colorectal cancer surgery, the risk of surgical site infection (SSI) is relatively high. The development of SSI is related to longer and costlier hospitalization and reduced quality of life; therefore, perioperative prevention of SSI is important. Chemical bowel preparation (CBP) combined with mechanical bowel preparation (MBP) may be more effective in preventing surgical site infection (SSI) compared to MBP alone.

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infections represent a leading cause of foodborne illnesses; resistance to third-generation cephalosporins (TGCs), which are a first-choice antimicrobial for treating human enteritis, has become a serious public health concern worldwide. Because the consumption of undercooked chicken meat products is a major cause of foodborne salmonellosis in Japan, we conducted three surveys at different periods between 2017 and 2022, with the cooperation of four abattoirs (two in Eastern and two in Western Japan). The first survey was conducted at abattoir A, which is located in Eastern Japan.

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Analysis of volatile hydrocarbons in blood from fire-related deaths provides useful information such as whether the victim inhaled smoke from the fire before death or whether an accelerant was used in the fire. In this study, we used headspace gas chromatography-mass spectrometry to quantify volatile hydrocarbons in post-mortem heart blood from 121 fire victims. The cases were classified into the following four groups according to the detected volatile hydrocarbons: construction fires without accelerants, kerosene fires, gasoline fires, and a group with no fire-related hydrocarbons detected (other fires).

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Human T cell leukemia/T-lymphotropic virus type 1 (HTLV-1) infection occurs by cell-to-cell transmission and can induce fatal adult T cell leukemia. Vaccine development is critical for the control of HTLV-1 transmission. However, determining whether vaccine-induced anti-Env antibodies can prevent cell-to-cell HTLV-1 transmission is challenging.

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Article Synopsis
  • * SAYAV was not able to be cultured in lab settings but was studied by creating single-round infectious virus particles (SRIP) using its gene sequence, which helped in examining its endemic status.
  • * The presence of neutralizing antibodies against SAYAV in sika deer and wild boars indicates it is widespread in Japan, and phylogenetic analysis shows it evolved separately from other known flaviviruses, highlighting an innovative approach to studying uncultured viruses.
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Background/aim: Given that gastric small cell neuroendocrine carcinoma (SCNEC) is notably more aggressive than conventional adenocarcinoma, and a platinum-based regimen aligned with the treatment for pulmonary SCNEC is advocated when chemotherapy is needed, ensuring an accurate pathological diagnosis is paramount.

Case Report: A 63-year-old man, examined for melena, underwent gastroscopy which revealed a total circumferential Borrmann type 3 lesion extending from the pylorus to the antrum of the stomach. He underwent a distal gastrectomy with D2 lymphadenectomy.

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Chicken liver is a potential source of campylobacteriosis in humans. Therefore, we determined the number of Campylobacter in chicken liver. In total, 33 vacuum-packed liver products were obtained from retail stores, and found that 27 of the 33 products (81.

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Complete mesocolic excision (CME) with central vascular ligation (CVL) in laparoscopic surgery for right-sided colon cancer (RSCC) requires a precise understanding of the vascular anatomy. The efficacy of intraoperative ultrasound (IUS) in the identification of blood vessels for RSCC surgery was not evaluated. The aim of this study was to compare the intraoperative and short-term outcomes of CME with CVL with or without IUS by laparoscopic surgery for RSCC.

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Article Synopsis
  • * Campylobacter was found in 92.2% of the tested meat, primarily as C. jejuni, with 45.3% resistance to ampicillin, while Salmonella was present in 35.5%, with S. Corvallis being the most common serovar and 30.4% resistant to streptomycin.
  • * The findings indicate significant contamination of spent hen meat, suggesting that erythromycin and cefotaxime are effective treatments for managing infections from these bacteria in humans.
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Human T-cell leukemia virus type 1 (HTLV-1) induces chronic asymptomatic latent infection with a substantial proviral load but without significant viral replication . Cumulative studies have indicated involvement of CD8-positive (CD8) cells, including virus-specific CD8 T cells in the control of HTLV-1 replication. However, whether HTLV-1 expression from latently infected cells occurs in the absence of CD8 cells remains unclear.

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Article Synopsis
  • The study investigates the antimicrobial resistance of Campylobacter jejuni and Salmonella spp. from enteritis patients to guide treatment choices.
  • C. jejuni showed resistance rates of 17.2% to ampicillin and 46.4% to ciprofloxacin, while all isolates were susceptible to erythromycin, recommended for treatment.
  • Salmonella spp. had varying resistance rates, with all isolates susceptible to ciprofloxacin; the study identified S. Thompson, S. Enteritidis, and S. Schwarzengrund as the most common serotypes.*
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We report for the first time that ephedrine alkaloids-free Ephedra Herb extract (EFE) directly inhibits the replication of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in vitro and that the addition of EFE to the culture medium before viral infection reduces virus titers in the culture supernatant of SARS-CoV-2, including those of variant strains, by more than 99%, 24 h after infection. The addition of Ephedra Herb macromolecule condensed-tannin, which is the main active ingredient responsible for the anticancer, pain suppression, and anti-influenza effects of EFE, similarly suppressed virus production in the culture supernatant by 99% before infection and by more than 90% after infection. Since EFE does not have the side effects caused by ephedrine alkaloids, such as hypertension, palpitations, and insomnia, our results showed the potential of EFE as a safe therapeutic agent against coronavirus disease 2019.

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Since April 2018, robot-assisted rectal resection has been approved as an insurance medical treatment, and robot- assisted rectal resection is rapidly becoming widespread. Even in robot-assisted laparoscopic surgery, mesorectal division is difficult in a narrow pelvic cavity. At the beginning of the operation, Vessel Sealer ExtendTM(price 89,250 yen)was used, but as the procedure became stable, the mesorectal division was started with bipolar forceps and monopolar scissors.

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Article Synopsis
  • A 35-year-old woman with advanced sigmoid cancer underwent laparoscopic surgery and received adjuvant chemotherapy, but a follow-up CT scan showed new intraabdominal nodules a year later.
  • After a second round of treatment with IRIS and bevacizumab, the nodules shrank in size.
  • The patient then had successful robotic-assisted laparoscopic surgery to remove the nodules and has since been doing well without any recurrence for 6 months post-operation.
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Hepatitis E virus (HEV) is a zoonotic pathogen that circulates mainly between pigs and humans. In Japan, the number of confirmed HEV cases has increased over the past decade, with the majority reported as domestic HEV infections. HEV-infected pork products may be associated with this increase, but there is limited information on HEV in pork in Japanese markets.

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After the discovery of the Klotho gene, phosphate came into focus as a pathogenetic aging agent. Phosphate homeostasis is controlled by phosphate-regulating hormones: fibroblast growth factor 23 (FGF23), vitamin D, and parathyroid hormone. This study investigated the relationship between the deterioration in phosphate homeostasis and arterial stiffness by measuring serum FGF23 concentrations.

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Background: This study investigated the impact and short-term surgical outcomes of two different main energy devices for robotic gastrectomy for gastric cancer. The outcomes of robotic gastrectomy with ultrasonic shears and those of robotic gastrectomy with conventional forceps were compared.

Methods: We retrospectively evaluated 171 patients who underwent robotic distal gastrectomy or total gastrectomy for gastric cancer.

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