1.Intestinal ultrasound for intestinal Behçet disease reflects endoscopic activity and histopathological findings
Katsuki YAGUCHI ; Reiko KUNISAKI ; Sho SATO ; Kaori HIRAI ; Misato IZUMI ; Yoshimi FUKUNO ; Mami TANAKA ; Mai OKAZAKI ; Rongrong WU ; Yurika NISHIKAWA ; Yusuke MATSUNE ; Shunsuke SHIBUI ; Yoshinori NAKAMORI ; Masafumi NISHIO ; Mao MATSUBAYASHI ; Tsuyoshi OGASHIWA ; Ayako FUJII ; Kenichiro TORITANI ; Hideaki KIMURA ; Eita KUMAGAI ; Yukiko SASAHARA ; Yoshiaki INAYAMA ; Satoshi FUJII ; Toshiaki EBINA ; Kazushi NUMATA ; Shin MAEDA
Intestinal Research 2024;22(3):297-309
Background/Aims:
Intestinal Behçet disease is typically associated with ileocecal punched-out ulcers and significant morbidity and mortality. Intestinal ultrasound is a noninvasive imaging technique for disease monitoring. However, no previous reports have compared intestinal ultrasound with endoscopic ulcer activity or histopathological findings for intestinal Behçet disease. We evaluated the usefulness of intestinal ultrasound for assessing the activity of ileocecal ulcers in intestinal Behçet disease.
Methods:
We retrospectively compared intestinal ultrasound findings with 73 corresponding endoscopic images and 6 resected specimens. The intestinal ultrasound findings were assessed for 7 parameters (bowel wall thickness, vascularity [evaluated using the modified Limberg score with color Doppler], bowel wall stratification, white-plaque sign [strong hyperechogenic lines or spots], mesenteric lymphadenopathy, extramural phlegmons, and fistulas), and endoscopic ulcer activity was classified into active, healing, and scar stages. Histopathological findings were evaluated by consensus among experienced pathologists.
Results:
Bowel wall thickness (P< 0.001), vascularity (P< 0.001), loss of bowel wall stratification (P= 0.015), and white-plague sign (P= 0.013) were significantly exacerbated in the endoscopic active ulcer stage. Receiver operating characteristic curve analysis revealed that a bowel wall thickness of > 5.5 mm (sensitivity 89.7%, specificity 85.3%) was potentially useful for detecting active lesions. When compared with histopathological findings, an increase in bowel wall thickness reflected the ulcer marginal ridge, and the white-plaque sign reflected the ulcer bottom.
Conclusions
Intestinal ultrasound is useful for monitoring intestinal ulcer activity in intestinal Behçet disease.
2.Peroral pancreatoscopy with videoscopy and narrow-band imaging in intraductal papillary mucinous neoplasms with dilatation of the main pancreatic duct
Yui KISHIMOTO ; Naoki OKANO ; Ken ITO ; Kensuke TAKUMA ; Seiichi HARA ; Susumu IWASAKI ; Kensuke YOSHIMOTO ; Yuto YAMADA ; Koji WATANABE ; Yusuke KIMURA ; Hiroki NAKAGAWA ; Yoshinori IGARASHI
Clinical Endoscopy 2023;56(2):261-261
3.Are Newer Extracorporeal Shock Wave Lithotripsy Models Truly Improving Pancreatolithiasis Lithotripsy Performance? A Japanese Single-Center Study Using Endoscopic Adjunctive Treatment
Ken ITO ; Naoki OKANO ; Kensuke TAKUMA ; Susumu IWASAKI ; Koji WATANABE ; Yusuke KIMURA ; Yuto YAMADA ; Kensuke YOSHIMOTO ; Seiichi HARA ; Yui KISHIMOTO ; Takahisa MATSUDA ; Yoshinori IGARASHI
Gut and Liver 2023;17(4):647-658
Background/Aims:
Many Japanese institutions use electromagnetic extracorporeal shock wave lithotripsy (ESWL) systems for treating pancreatic duct stones. However, there are no reports on direct comparisons between recent electromagnetic lithotripters. This study aimed to verify whether the new electromagnetic lithotripter can improve the efficiency of pancreatic stone fragmentation, and to clarify the role of combined endoscopic treatment on the clearance of pancreatic duct stones.
Methods:
We retrospectively identified 208 patients with pancreatolithiasis who underwent endoscopic adjunctive treatment after pancreatic ESWL at a single Japanese center over a 17-year period. We evaluated the outcome data of this procedure performed with SLX-F2 (last 2 years; group A) and Lithostar/Lithoskop (first 15 years; group B), as well as additional endoscopic treatments for pancreatolithiasis. We also performed logistic regression analysis to detect various factors associated with the procedure.
Results:
For pancreatic head stones, ESWL disintegration was achieved in 93.7% of group A patients and 69.0% of group B patients (p=0.004), and adjunctive endoscopic treatment removed stones in 96.8% of group A patients and 73.0% of group B patients (p=0.003). Multivariate analysis revealed that lithotripter type (odds ratio, 6.99; 95% confidence interval, 1.56 to 31.33; p<0.01) and main pancreatic duct stricture (odds ratio, 2.87; 95% confidence interval, 1.27 to 6.45; p<0.01) were significant factors for ESWL fragmentation.
Conclusions
The SLX F2 showed high performance in fragmenting the pancreatic duct stones.In addition, endoscopic adjunctive treatment improved the overall success rate of the procedure. The improved ESWL lithotripter has many advantages for patients undergoing pancreatic lithotripsy treatment.
4.Two cases of atypical femoral fracture in cancer patients administered with bone-modifying agents
Yusuke FUCHIOKA ; Kohji SUZUKI ; Hiroaki KIMURA ; Hideto FURUOKA ; Yuri TAMURA
Journal of Rural Medicine 2021;16(3):170-173
Objective: We report two cases of atypical femoral fracture (AFF) in patients with cancer.Patients: Two patients, a 53-year-old woman with breast cancer and a 77-year-old man with prostate cancer, could not walk after being injured in a fall. They used bone-modifying agents (BMA) for the prevention of bone metastasis for three and four years, respectively.Results: Intramedullary nails were placed to fix the femoral fractures in each patient. Neither of them had pathological metastatic femoral fractures based on fracture site specimens; however, severe suppression of bone turnover at the fracture site was suspected. Both patients could ambulate with a T-cane and were free of hip pain after surgery. Radiographs showed no callus formation at the fracture site.Conclusion: Based on the two cases of AFF in patients with cancer related to BMA use, we should consider that the incidence of AFF may be associated with long-term BMA use.
5.Electroconvulsive Therapy for Parkinson’s Disease with Depression and Neuroleptic Malignant Syndrome: A Case Report
Yuhei MORI ; Itaru MIURA ; Michinari NOZAKI ; Yusuke OSAKABE ; Ryuta IZUMI ; Takahiro AKAMA ; So KIMURA ; Hirooki YABE
Clinical Psychopharmacology and Neuroscience 2021;19(3):572-575
Parkinson’s disease is often complicated by psychiatric symptoms. Psychiatrists are caught in a dilemma between such symptoms and physical treatment since Parkinson’s disease sometimes shows treatment resistance based on pharmacological treatment-induced dopamine dysfunction. Here, we report on a 64-year-old woman with a 15-year history of Parkinson’s disease with stage IV severity based on the Hoehn and Yahr scale. She was admitted to our hospital with a diagnosis of major depressive disorder with psychotic features. Unfortunately, her treatment course for depression was complicated by neuroleptic malignant syndrome. Because we were concerned about the persistence of her depressive symptoms, the risk of psychotropic drugs causing adverse effects, and progressive disuse syndrome, we administered modified electroconvulsive therapy. Her symptoms of neuroleptic malignant syndrome and depression sufficiently improved after five sessions of modified electroconvulsive therapy. Additionally, the primary motor symptoms of her Parkinson’s disease also markedly improved. The improvement of neuroleptic malignant syndrome and her motor symptoms based on dopamine dysfunction can be explained by electroconvulsive therapy’s effectiveness in activating dopamine neurotransmission. Besides, the marked improvement of her depressive episode with psychotic features was presumed to involve dopamine receptor activation and regulation. Because advanced Parkinson’s disease can sometimes be refractory to treatment based on pharmacological treatment-induced dopamine dysfunction, psychiatrists often have difficulty treating psychiatric symptoms; electroconvulsive therapy may stabilize the dopaminergic system in such cases, presenting a possible non-pharmacologic treatment option for Parkinson’s disease.
6.Electroconvulsive Therapy for Parkinson’s Disease with Depression and Neuroleptic Malignant Syndrome: A Case Report
Yuhei MORI ; Itaru MIURA ; Michinari NOZAKI ; Yusuke OSAKABE ; Ryuta IZUMI ; Takahiro AKAMA ; So KIMURA ; Hirooki YABE
Clinical Psychopharmacology and Neuroscience 2021;19(3):572-575
Parkinson’s disease is often complicated by psychiatric symptoms. Psychiatrists are caught in a dilemma between such symptoms and physical treatment since Parkinson’s disease sometimes shows treatment resistance based on pharmacological treatment-induced dopamine dysfunction. Here, we report on a 64-year-old woman with a 15-year history of Parkinson’s disease with stage IV severity based on the Hoehn and Yahr scale. She was admitted to our hospital with a diagnosis of major depressive disorder with psychotic features. Unfortunately, her treatment course for depression was complicated by neuroleptic malignant syndrome. Because we were concerned about the persistence of her depressive symptoms, the risk of psychotropic drugs causing adverse effects, and progressive disuse syndrome, we administered modified electroconvulsive therapy. Her symptoms of neuroleptic malignant syndrome and depression sufficiently improved after five sessions of modified electroconvulsive therapy. Additionally, the primary motor symptoms of her Parkinson’s disease also markedly improved. The improvement of neuroleptic malignant syndrome and her motor symptoms based on dopamine dysfunction can be explained by electroconvulsive therapy’s effectiveness in activating dopamine neurotransmission. Besides, the marked improvement of her depressive episode with psychotic features was presumed to involve dopamine receptor activation and regulation. Because advanced Parkinson’s disease can sometimes be refractory to treatment based on pharmacological treatment-induced dopamine dysfunction, psychiatrists often have difficulty treating psychiatric symptoms; electroconvulsive therapy may stabilize the dopaminergic system in such cases, presenting a possible non-pharmacologic treatment option for Parkinson’s disease.
7.Glycosylation engineering of therapeutic IgG antibodies: challenges for the safety, functionality and efficacy.
Yusuke MIMURA ; Toshihiko KATOH ; Radka SALDOVA ; Roisin O'FLAHERTY ; Tomonori IZUMI ; Yuka MIMURA-KIMURA ; Toshiaki UTSUNOMIYA ; Yoichi MIZUKAMI ; Kenji YAMAMOTO ; Tsuneo MATSUMOTO ; Pauline M RUDD
Protein & Cell 2018;9(1):47-62
Glycosylation of the Fc region of IgG has a profound impact on the safety and clinical efficacy of therapeutic antibodies. While the biantennary complex-type oligosaccharide attached to Asn297 of the Fc is essential for antibody effector functions, fucose and outer-arm sugars attached to the core heptasaccharide that generate structural heterogeneity (glycoforms) exhibit unique biological activities. Hence, efficient and quantitative glycan analysis techniques have been increasingly important for the development and quality control of therapeutic antibodies, and glycan profiles of the Fc are recognized as critical quality attributes. In the past decade our understanding of the influence of glycosylation on the structure/function of IgG-Fc has grown rapidly through X-ray crystallographic and nuclear magnetic resonance studies, which provides possibilities for the design of novel antibody therapeutics. Furthermore, the chemoenzymatic glycoengineering approach using endoglycosidase-based glycosynthases may facilitate the development of homogeneous IgG glycoforms with desirable functionality as next-generation therapeutic antibodies. Thus, the Fc glycans are fertile ground for the improvement of the safety, functionality, and efficacy of therapeutic IgG antibodies in the era of precision medicine.
Animals
;
Antibodies, Monoclonal
;
adverse effects
;
pharmacokinetics
;
therapeutic use
;
Glycosylation
;
Humans
;
Immunoglobulin G
;
chemistry
;
metabolism
;
Protein Engineering
;
methods
;
Receptors, Fc
;
chemistry
;
metabolism
;
Treatment Outcome
8.Icodextrin and spurious hyperglycemia in peritoneal dialysis patients: a hospital-wide attempt to prevent such errors.
Korean Journal of Anesthesiology 2017;70(4):479-479
No abstract available.
Humans
;
Hyperglycemia*
;
Peritoneal Dialysis*
9.Quadricuspid Aortic Valve Complicated with Severe Aortic Regurgitation and Left-Sided Inferior Vena Cava.
Jun SHIRAISHI ; Kazunari OKAWA ; Kohei MUGURUMA ; Daisuke ITO ; Masayoshi KIMURA ; Eigo KISHITA ; Yusuke NAKAGAWA ; Masayuki HYOGO ; Akiyuki TAKAHASHI ; Takahisa SAWADA
Journal of Cardiovascular Ultrasound 2017;25(1):34-37
No abstract available.
Aortic Valve Insufficiency*
;
Aortic Valve*
;
Echocardiography, Transesophageal
;
Vena Cava, Inferior*
10.Efficacy of Thiopurines in Biologic-Naive Japanese Patients With Crohn's Disease: A Single-Center Experience.
Takuya YOSHINO ; Minoru MATSUURA ; Naoki MINAMI ; Satoshi YAMADA ; Yusuke HONZAWA ; Masamichi KIMURA ; Yorimitsu KOSHIKAWA ; Ali MADIAN ; Takahiko TOYONAGA ; Hiroshi NAKASE
Intestinal Research 2015;13(3):266-273
BACKGROUND/AIMS: Early use of biologics in patients with Crohn's disease (CD) improves quality of life. However, the effects of the early use of immunomodulators on long-term outcomes remain unclear. This study aimed to evaluate the effects of immunomodulators in patients with CD. METHODS: Between January 2004 and December 2011, 47 biologic-naive CD patients treated with thiopurines alone for remission maintenance were analyzed. The patients were classified into 2 groups depending on the presence or absence of digestive complications. We evaluated the efficacy of and predictive factors for thiopurine use for remission maintenance. RESULTS: The cumulative relapse rates at 24 and 60 months were 13.7% and 35.4%, respectively. Regarding patient characteristics, there was a significant difference in patient history of surgery between the non-relapse and relapse groups (P=0.021). The cumulative relapse rate was lower in patients without a history of surgery than in those with such a history (27.2% and 52.9% at 60.0 months, respectively). Multivariate analysis suggested that the prevalence of stricturing and penetrating complications is an independent factor for relapse. The cumulative relapse rate in patients without a history of surgery was significantly lower in the non-stricturing and non-penetrating group than in the stricturing and penetrating group (11.8% at 85.0 months vs. 58.5% at 69.0 months; P=0.036). CONCLUSIONS: Thiopurine use might be beneficial for the long-term maintenance of remission in biologic-naive Crohn's disease patients without digestive complications and a history of surgery.
Asian Continental Ancestry Group*
;
Biological Products
;
Crohn Disease*
;
Humans
;
Immunologic Factors
;
Multivariate Analysis
;
Prevalence
;
Quality of Life
;
Recurrence


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