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  1. Article

    Open Access

    Effect of disease duration on fecal biomarkers in ulcerative colitis: a prospective cohort study

    Biomarkers such as fecal calprotectin (FC) and fecal immunochemical occult blood tests (FIT) for ulcerative colitis (UC) are used in clinical practice. In this study, the effect of UC disease duration on FC wa...

    Natsuki Ishida, Masanao Kaneko, Yusuke Asai, Takahiro Miyazu in BMC Gastroenterology (2022)

  2. Article

    Open Access

    Modified method of patency judgement using patency capsule prior to capsule endoscopy in clinical practice

    In 2012, Japan approved the use of a tag-less patency capsule (PC), which evaluates gastrointestinal patency before small-bowel capsule endoscopy (SBCE). This study aimed to evaluate the validity of our modifi...

    Takahiro Miyazu, Satoshi Osawa, Satoshi Tamura, Shinya Tani in Scientific Reports (2022)

  3. Article

    Open Access

    Lymphocyte to monocyte ratio and serum albumin changes predict tacrolimus therapy outcomes in patients with ulcerative colitis

    Tacrolimus therapy for ulcerative colitis is ineffective in certain patients; these patients require biologics or colectomy. We examined the ability of serum albumin levels and leukocyte subtypes to predict th...

    Natsuki Ishida, Shinya Tani, Yusuke Asai, Takahiro Miyazu in Scientific Reports (2022)

  4. Article

    Open Access

    Real-World Efficacy and Safety Monitoring for Predicting Continuation of Tofacitinib Therapy in Patients with Ulcerative Colitis

    Although the clinical efficacy of tofacitinib in patients with ulcerative colitis (UC) has been assessed in the OCTAVE trial, there is a lack of adequate data on its efficacy in real-world clinical settings.

    Natsuki Ishida, Takahiro Miyazu, Satoshi Tamura in Digestive Diseases and Sciences (2022)

  5. Article

    Open Access

    Further research on the clinical relevance of the ulcerative colitis colonoscopic index of severity for predicting 5-year relapse

    The ulcerative colitis colonoscopic index of severity (UCCIS) evaluates the state of the entire colonic mucosa in ulcerative colitis. However, no cut-off values of scores for predicting clinical relapse in pat...

    Natsuki Ishida, Shunya Onoue in International Journal of Colorectal Disease (2021)

  6. Article

    Open Access

    Comparison between Prostaglandin E-major urinary metabolite and C-reactive protein levels to reflect endoscopic scores in patients with ulcerative colitis

    Prostaglandin E-major urinary metabolite (PGE-MUM) and C-reactive protein (CRP) are useful biomarkers in patients with ulcerative colitis. However, whether changes in endoscopic scores over time are reflected ...

    Natsuki Ishida, Satoshi Tamura, Takahiro Miyazu, Shinya Tani in Scientific Reports (2021)

  7. Article

    Open Access

    Prevalence of UL97 gene mutations and polymorphisms in cytomegalovirus infection in the colon associated with or without ulcerative colitis

    Cytomegalovirus (CMV) reactivation in the colon is common in patients with severe ulcerative colitis (UC). Ganciclovir (GCV) resistance conferring CMV UL97 gene mutations have been reported in recent years. Ho...

    Satoshi Tamura, Satoshi Osawa, Natsuki Ishida, Takahiro Miyazu in Scientific Reports (2021)

  8. Article

    Open Access

    C-reactive protein is superior to fecal biomarkers for evaluating colon-wide active inflammation in ulcerative colitis

    We evaluated the association between endoscopic scores of colonic inflammation and fecal calprotectin (FC), fecal immunochemical occult blood test (FIT), and C-reactive protein (CRP) in patients with ulcerativ...

    Natsuki Ishida, Tomohiro Higuchi, Takahiro Miyazu, Satoshi Tamura in Scientific Reports (2021)

  9. Article

    Open Access

    Mesalazine granule formulation improves clinical data in Crohn's disease compared with tablet formulation

    The efficacy of sustained-release preparations of mesalazine as a remission maintenance treatment for Crohn's disease remains to be established. We aimed to examine the changes in compliance rate and clinical ...

    Satoshi Tamura, Natsuki Ishida, Takahiro Miyazu, Shunya Onoue in Scientific Reports (2020)

  10. No Access

    Article

    Effect of ulcerative colitis duration on the usefulness of immunochemical fecal occult blood test result as a disease activity biomarker

    The effects of ulcerative colitis (UC) duration on biomarker accuracy are unknown. We investigated the effects of UC duration on the predictive accuracy of biomarkers including immunochemical fecal occult bloo...

    Natsuki Ishida, Takahiro Miyazu in International Journal of Colorectal Disease (2020)

  11. Article

    Open Access

    Prostaglandin E-major urinary metabolite versus fecal immunochemical occult blood test as a biomarker for patient with ulcerative colitis

    Prostaglandin E-major urinary metabolite (PGE-MUM) may be a novel biomarker for evaluating disease activity in ulcerative colitis (UC). We compared its usefulness to that of the fecal immunochemical occult blo...

    Natsuki Ishida, Takahiro Miyazu, Ryosuke Takano, Satoshi Tamura in BMC Gastroenterology (2020)