Publications by authors named "Kuzuya K"

Objectives: A few studies on antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) treatments have shown the therapeutic efficacy of mycophenolate mofetil (MMF). However, the therapeutic efficacy of MMF compared with that of cyclophosphamide (CYC) in patients with AAV has not been established. We conducted a systematic review and meta-analysis to assess the efficacy of MMF as a remission induction therapy in patients with AAV comparing it with the efficacy of CYC.

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Article Synopsis
  • A 40-year-old woman had two serious health issues, systemic sclerosis (SSc) and systemic lupus erythematosus (SLE), along with a condition called pulmonary arterial hypertension (PAH).
  • She was treated with a mix of medicines including immunosuppressants and a drug called riociguat, which helped her a lot.
  • After two months of treatment, her symptoms got much better, showing that using different medicines together early on can really help.
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A 66-year-old woman with symptoms of fatigue and headache was diagnosed with giant cell arteritis (GCA). Fluorodeoxyglucose (FDG)-positron emission tomography (PET)/computed tomography (CT) revealed the strong accumulation of FDG in the descending aorta, abdominal aorta, bilateral subclavian artery, and total iliac artery. Diffusion-weighted whole-body imaging with background body signal suppression (DWIBS) showed signal enhancement at the descending aorta and abdominal aorta.

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A 26-year-old woman with Takayasu's arteritis (TAK) experienced back and neck pain during tocilizumab (TCZ) treatment. The levels of C-reactive protein were normal, and ultrasonography revealed no significant changes. Diffusion-weighted whole-body imaging with background body signal suppression (DWIBS) showed signal enhancement in the walls of several arteries.

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Objectives: To examine the influence of smoking on biologics treatment against different therapeutic targets, such as TNFα, IL-6, and T cell, in rheumatoid arthritis (RA) and elucidate the underlying molecular mechanism.

Methods: The association between drug-discontinuation due to poor therapeutic response and smoking status was analyzed individually in biologics against different therapeutic targets by a multivariable logistic regression analysis using the "NinJa" Registry, one of the largest cohorts of Japanese RA patients. In vitro enhancement of TNFα-induced NF-κB activation and subsequent proinflammatory cytokine production by cigarette chemical components was examined by RT-PCR, qPCR, ELISA, and western blotting using an immortalized rheumatoid synovial cell line, MH7A.

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Given the hypothesis that inflammation plays a critical role in the progression of cardiovascular diseases, the aim of the present study was to identify new diagnostic and prognostic biomarkers of myocardial proteins involved in early-phase cardiac impairment, using proteomics analysis. Using the two-dimensional fluorescence difference gel electrophoresis (2D-DIGE) combined with MALDI-TOF/TOF tandem mass spectrometry, we compared differences in the expression of proteins in the whole left ventricles between control hamsters, dilated cardiomyopathic hamsters (TO-2), and hypertrophy cardiomyopathic hamsters (Bio14.6) at 6 weeks of age (n = 6, each group).

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Inflammation enhanced by accumulation of reactive oxygen species plays an essential role in the progression of cardiovascular diseases. Using the 2D-oxyblot analysis and 2D-difference image gel electrophoresis (2D-DIGE), we compared the levels of ROS-induced carbonyl modification of myocardial proteins in the whole left ventricles between 6-week-old hamsters with dilated (TO-2) and hypertrophic cardiomyopathy (Bio14.6) and control hamsters (F1B).

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Chamobtusin A, a unique diterpene alkaloid isolated from Chamaecyparis obtusa cv. tetragon, is considered to be biosynthesized from an abietane diterpenoid. On the basis of this biosynthetic hypothesis, ferruginol (15) was synthesized from (+)-dehydroabietylamine and then biomimetically transformed into (-)-chamobtusin A in 6 steps (12 steps from (+)-dehydroabietylamine).

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Background: A phase III trial was conducted to determine whether neoadjuvant chemotherapy (NACT) before radical surgery (RS) improves overall survival.

Methods: Patients with stage IB2, IIA2, or IIB squamous cell carcinoma of the uterine cervix were randomly assigned to receive either BOMP (bleomycin 7 mg days 1-5, vincristine 0.7 mg m(-2) day 5, mitomycin 7 mg m(-2) day 5, cisplatin 14 mg m(-2) days 1-5, every 3 weeks for 2 to 4 cycles) plus RS (NACT group) or RS alone (RS group).

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In this study, we aimed to develop a histological grading system for ovarian clear cell adenocarcinoma (CCA), based on the tumor growth architectures. Cases were defined as Group A if ≥90% of a tumor examined was composed of well-differentiated tubulocystic and/or papillary architectures; Group C if at least 10% of the tumor was composed of very poorly differentiated histology (i.e.

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Background: The aim of this phase II study was to evaluate the efficacy and toxicity of docetaxel and irinotecan combination chemotherapy in patients with ovarian cancer refractory and resistant to both platinum and taxan treatment.

Patients And Methods: Patients who had been treated with platinum and paclitaxel but whose ovarian cancer progressed or recurred within 6 months of treatment (n = 41) received docetaxel 60 mg/m(2) (day 1) and irinotecan 60 mg/m(2) (days 1, 8), repeated every 21 days [Japan Gynecologic Oncology Group (JGOG) study 3015] or every 28 days [West Japan Gynecologic Oncology Group (WJGOG) study 002] until disease progression was observed or unacceptable toxicity. Sixteen patients had platinum/paclitaxel-refractory disease, and 25 patients had platinum/paclitaxel-resistant disease.

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In this study, we aimed to determine whether the presence of poorly differentiated histologic components in ovarian clear cell adenocarcinoma (CCA) affects patient prognosis. Pathologic slides from 159 patients with CCA were studied, and the tumors were classified as Por(+) in the event of poorly differentiated histology; that is, if solid masses or cords, or individual infiltrating tumor cells with little or no glandular/papillary differentiation were present in >5% of the tumor area examined. All other tumors were classified as Por(-).

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Pathologic slides from 150 patients with clear cell adenocarcinoma from the collaborating institutions were reviewed independently by 2 pathologists, and each tumor was graded histologically using the Shimizu-Silverberg and International Federation of Gynecology and Obstetrics (FIGO) grading systems. For the Shimizu-Silverberg grading system, 3 parameters-architectural pattern, nuclear pleomorphism, and mitotic activity-were assessed and scored as 1 to 3. When the summed scores of these parameters were 3 to 5, 6 to 7, and 8 to 9, grades 1, 2, and 3 were assigned, respectively.

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Article Synopsis
  • GEX1A is a microbial product that demonstrates antitumor properties by altering the processing of p27, leading to its accumulation in cancer cells.
  • It inhibits pre-mRNA splicing of p27, resulting in the production of a truncated form, p27*, which accumulates due to its resistance to proteolysis.
  • GEX1A targets the SAP155 protein, a part of the pre-mRNA splicing machinery, establishing it as a unique splicing inhibitor that disrupts SF3b function.
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Introduction: Ovarian clear cell carcinoma (CCC) is regarded as grade 3 tumor, and the National Comprehensive Cancer Network (NCCN) Clinical Practice Guidelines recommend adjuvant chemotherapy for the tumor even at stage IA. However, CCC often showed chemo-resistant phenotype, and the effect of adjuvant chemotherapy still remained uncertain.

Methods: Clear cell carcinoma cases treated at collaborating institutions during the period 1992-2005 were retrospectively identified.

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A total synthesis of (±)-chamobtusin A has been accomplished on the basis of our presumed biosynthetic pathway: the imine formation of keto aldehyde followed by intramolecular aza-Michael addition.

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Pure-type clear cell carcinoma (CCC) has been recognized as a distinct subtype of ovarian cancer, showing resistance to conventional platinum-based chemotherapy and resulting in poor prognosis. The aim of the study was to evaluate the effects of complete surgical staging procedures for early-stage CCC patients in a retrospective multi-institutional analysis. During the period 1992 to 2002, a total of 199 patients with pT1 M0 CCC were identified.

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Clear cell carcinoma (CCC) of the ovary has been recognized to show resistance to anticancer agents in the first-line chemotherapy. Our aim was to evaluate the effect of second-line chemotherapy in a retrospective study. A total of 75 patients diagnosed with CCC and treated between 1992 and 2002 in collaborating hospitals were reviewed.

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Background: Irinotecan hydrochloride, a topoisomerase I inhibitor, has been preliminarily recognized as an effective agent against clear cell carcinoma of the ovary (CCC), but there are few clinical data. Our aim was to compare progression-free survival (PFS) between patients treated with irinotecan hydrochloride and cisplatin (CPT-P) and those with treated with paclitaxel and carboplatin (TC).

Methods: One hundred and seventeen patients at International Federation of Gynecology and Obstetrics (FIGO) stages Ic (ascites/malignant washing) - IV were identified by scanning the medical records of ten Japanese hospitals.

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Clear cell carcinoma (CCC) of the ovary has distinct characteristics showing resistance to conventional platinum-based regimen. Our aim was to evaluate the effects of combination therapy with irinotecan hydrochloride and cisplatin (CPT-P), comparing to regimen with paclitaxel and platinum (TP). We retrospective reviewed 172 patients with complete surgical staging procedures including lymphadenenctomy.

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A retrospective analysis was performed to evaluate the clinical characteristics and prognostic factors in the patients with clear cell carcinoma (CCC) of the ovary. After central pathological review and scanning of the medical records of nine Japanese institutions between 1992 and 2003, a total of 254 patients with CCC of the ovary were enrolled in the present study. Mean age was 52.

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Background: The present study was conducted to determine the frequency and clinicopathological features of ovarian metastasis in a large population of patients with stage Ib-IIb cervical cancer.

Methods: The study population consisted of 3471 patients with stage Ib to IIb cervical cancer who underwent radical hysterectomy, including pelvic lymphadenectomy and bilateral salpingo-oophorectomy, at our six institutions between 1981 and 2000. To our knowledge, this study is the largest review of patients with ovarian metastasis from cervical cancer.

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[Endometrial cancer].

Gan To Kagaku Ryoho

August 2005

The current treatment of choice for endometrial cancer is reported to be primary surgery including a total abdominal hysterectomy, bilateral salpingo-oophorectomy, peritoneal cytologic sampling, and exploration, palpation, and biopsy of any suspicious lymph nodes or lesions. This allows determination of the extent of the disease, the stage of malignancy and the risk of recurrence. Adjuvant radiation therapy is administered to the pelvis for intermediate-risk patients, and a systemic chemotherapy is considered for high-risk ones, while no treatment is added for low-risk patients.

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