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Nishikawa Y, Ikeda Y, Murakami H, Hori SI, Yoshimatsu M, Nishikawa N. Mucosal patterns change after Helicobacter pylori eradication: Evaluation using blue laser imaging in patients with atrophic gastritis. World J Gastroenterol 2023; 29:2657-2665. [PMID: 37213405 PMCID: PMC10198049 DOI: 10.3748/wjg.v29.i17.2657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/03/2023] [Accepted: 04/07/2023] [Indexed: 05/23/2023] Open
Abstract
BACKGROUND Mucosal patterns (MPs) observed on blue laser imaging in patients with atrophic gastritis can be classified as spotty, cracked, and mottled. Furthermore, we hypothesized that the spotty pattern may change to the cracked pattern after Helicobacter pylori (H. pylori) eradication.
AIM To further substantiate and comprehensively investigate MP changes after H. pylori eradication in a larger number of patients.
METHODS We included 768 patients who were diagnosed with atrophic gastritis with evaluable MP using upper gastrointestinal endoscopy at the Nishikawa Gas-trointestinal Clinic, Japan. Among them, 325 patients were H. pylori-positive, and of them, 101 patients who underwent upper gastrointestinal endoscopy before and after H. pylori eradication were evaluated for post-eradication MP changes. The patients’ MPs were interpreted by three experienced endoscopists who were blinded to their clinical features.
RESULTS Among 76 patients with the spotty pattern before or after H. pylori eradication, the pattern disappeared or decreased in 67 patients [88.2%, 95% confidence interval (CI): 79.0%-93.6%), appeared or increased in 8 patients (10.5%, 95%CI: 5.4%-19.4%), and showed no change in 1 patient (1.3%, 95%CI: 0.2%-7.1%). In 90 patients with the cracked pattern before or after H. pylori eradication, the pattern disappeared or decreased in 7 patients (7.8%, 95%CI: 3.8%-15.2%), appeared or increased in 79 patients (87.8%, 95%CI: 79.4%-93.0%), and showed no change in 4 patients (4.4%, 95%CI: 1.7%-10.9%). In 70 patients with the mottled pattern before or after H. pylori eradication, the pattern disappeared or decreased in 28 patients (40.0%, 95%CI: 29.3%-51.7%), appeared or increased in 35 patients (50.0%, 95%CI: 38.6%-61.4%), and showed no change in 7 patients (10.0%, 95%CI: 4.9%-19.2%).
CONCLUSION After H. pylori eradication, MPs changed from spotty to cracked in most patients, which may help endoscopists easily and precisely evaluate H. pylori-related gastritis status.
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Affiliation(s)
- Yoshiyuki Nishikawa
- Department of Gastroenterology, Nishikawa Gastrointestinal Clinic, Matsuyama 790-0878, Ehime, Japan
| | - Yoshio Ikeda
- Endoscopy Center, Ehime University Hospital, Toon 791-0295, Ehime, Japan
| | - Hidehiro Murakami
- Department of Internal Medicine, Saiseikai Matsuyama Hospital, Matsuyama 791-8026, Ehime, Japan
| | - Shin-Ichiro Hori
- Department of Gastroenterology, Himeji Red Cross Hospital, Himeji 670-8540, Hyogo, Japan
| | - Megumi Yoshimatsu
- Department of Gastroenterology, National Hospital Organization Shikoku Cancer Center, Matsuyama 791-0280, Ehime, Japan
| | - Naoki Nishikawa
- Department of Gastroenterology, Matsuyama Shimin Hospital, Matsuyama 790-0067, Ehime, Japan
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Hino K, Nishina T, Numata Y, Asagi A, Inoue T, Yoshimatsu M, Sakaguchi C, Nakasya A, Nishide N, Kajiwara T, Terao T, Nadano S, Marui K, Okujima Y, Kokubu M, Imamura Y, Kanemitsu K, Koizumi M, Kumagi T, Hiasa Y, Hyodo I. Clinical Outcomes of S-1 Monotherapy and Modified FOLFIRINOX Therapy after Gemcitabine plus Nab-paclitaxel Therapy in Unresectable Pancreatic Cancer. Intern Med 2022; 61:2255-2261. [PMID: 35908959 PMCID: PMC9424096 DOI: 10.2169/internalmedicine.8736-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objective S-1 and modified FOLFIRINOX (mFFX) were often used as the second-line chemotherapies after failure of gemcitabine plus nab-paclitaxel (GnP) in unresectable pancreatic cancer (UPC) until nanoliposomal irinotecan plus 5-fluorouracil/leucovorin therapy was approved as an alternative in Japan in 2020. However, the clinical outcomes of S-1 and mFFX after GnP have scarcely been reported. Therefore, we retrospectively studied them. Methods We extracted the clinical data of 86 patients with UPC who received second-line chemotherapy after GnP between 2015 and 2020. Among the patients who had a good organ functions and no massive ascites, 41 patients treated with S-1 and 21 treated with mFFX were enrolled. Results Compared to S-1, mFFX tended to be used for younger patients with a good general condition (median age, 63 vs. 71 years, p<0.01; and performance status 0, 67% vs. 37%, p<0.05). The median progression-free and overall survival were similar between the S-1 (3.7 and 7.2 months, respectively) and mFFX (3.3 and 7.4 months, respectively) groups. The response rate in patients with measurable lesions was 4% (n=1/23) in the S-1 group and 17% (n=2/12) in the mFFX group. The incidence of grade 3 or 4 adverse events was 20% in the S-1 group and 57% (neutrophil count decreased in 43%) in the mFFX group (p<0.01). Conclusion S-1 and mFFX were both acceptable second-line chemotherapies after GnP therapy for UPC, although attention should be paid to myelosuppression during mFFX treatment. Further studies involving nanoliposomal irinotecan plus 5-fluorouracil/leucovorin therapy are necessary to facilitate the selection of the optimal regimen for each patient.
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Affiliation(s)
- Kaori Hino
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Tomohiro Nishina
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Yuuki Numata
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
| | - Akinori Asagi
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Tomonori Inoue
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Megumi Yoshimatsu
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Chihiro Sakaguchi
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Akio Nakasya
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Norifumi Nishide
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Takeshi Kajiwara
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Takashi Terao
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Seijin Nadano
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
| | - Kaori Marui
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
| | - Yusuke Okujima
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
| | - Masahito Kokubu
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
| | - Yoshiki Imamura
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
| | - Kozue Kanemitsu
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
| | - Mitsuhito Koizumi
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
| | - Teru Kumagi
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
| | - Yoichi Hiasa
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Japan
| | - Ichinosuke Hyodo
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Japan
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3
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Hino K, Kajiwara T, Nishina T, Inoue T, Yoshimatsu M, Sakaguchi C, Nakasya A, Nishide N, Asagi A, Hasebe A, Terao T, Hori S, Nadano S, Hamamoto Y, Kataoka M, Tanimizu M. [Tolerability of Definitive Chemoradiotherapy in Elderly Patients with Esophageal Cancer]. Gan To Kagaku Ryoho 2020; 47:1577-1581. [PMID: 33268731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Definitive chemoradiotherapy(CRT)for esophageal cancer is the standard treatment and alternative to surgery. However, the tolerability of CRT in elderly patients is not well known. In this study, we retrospectively analyzed 60 patients with esophageal cancer who were treated with CRT(5-FU 700 mg/m2, cisplatin 70 mg/m2, radiation 60 Gy)at our hospital between January 2015 and September 2017. The patients were divided into 2 groups: an elderly group comprising 16 patients aged >75 years and a non-elderly group comprising 44 patients aged <74 years. The relative dose intensity of cisplatin in the elderly group was significantly lower than that in the non-elderly group. Radiotherapy was successfully executed in both groups. More patients in the elderly(25%)than the non-elderly group(7%)developed pneumonitis, and all patients who developed severe pneumonitis in the elderly group died. Application of definitive CRT and irradiation methods in elderly patients with a subpleural reticular shadow should be carefully considered before initiating therapy.
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Affiliation(s)
- Kaori Hino
- Dept. of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center
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4
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Sumi H, Yabuki M, Iwai K, Hashimoto K, Kosugi Y, Yoshimatsu M, Ishikawa T, Yoshida S. 73 Antitumor Activities and Pharmacodynamic Biomarkers of a Novel and Orally Available Small Molecule IAP Antagonist. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71871-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Ijichi H, Shirabe K, Taketomi A, Yoshizumi T, Uchiyama H, Harada N, Yoshimatsu M, Ikegami T, Soejima Y, Maehara Y. Current Therapeutic Strategies For Recurrent Hepatitis B Virus Infection After Living Donor Liver Transplantation. J Surg Res 2011. [DOI: 10.1016/j.jss.2010.11.260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Tanaka A, Nakata D, Yoshimatsu M, Akinaga Y, Miwa K, Kusaka M. Pharmacological profile of TAK-385, an orally active gonadotropin releasing hormone (GnRH) antagonist. Fertil Steril 2009. [DOI: 10.1016/j.fertnstert.2009.07.1105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Takashima K, Matsunaga N, Yoshimatsu M, Hazeki K, Kaisho T, Uekata M, Hazeki O, Akira S, Iizawa Y, Ii M. Analysis of binding site for the novel small-molecule TLR4 signal transduction inhibitor TAK-242 and its therapeutic effect on mouse sepsis model. Br J Pharmacol 2009; 157:1250-62. [PMID: 19563534 PMCID: PMC2743844 DOI: 10.1111/j.1476-5381.2009.00297.x] [Citation(s) in RCA: 172] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2008] [Revised: 02/17/2009] [Accepted: 03/10/2009] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE TAK-242, a novel synthetic small-molecule, suppresses production of multiple cytokines by inhibiting Toll-like receptor (TLR) 4 signalling. In this study, we investigated the target molecule of TAK-242 and examined its therapeutic effect in a mouse sepsis model. EXPERIMENTAL APPROACH Binding assay with [(3)H]-TAK-242 and nuclear factor-kappaB reporter assay were used to identify the target molecule and binding site of TAK-242. Bacillus calmette guerin (BCG)-primed mouse sepsis model using live Escherichia coli was used to estimate the efficacy of TAK-242 in sepsis. KEY RESULTS TAK-242 strongly bound to TLR4, but binding to TLR2, 3, 5, 9, TLR-related adaptor molecules and MD-2 was either not observed or marginal. Mutational analysis using TLR4 mutants indicated that TAK-242 inhibits TLR4 signalling by binding to Cys747 in the intracellular domain of TLR4. TAK-242 inhibited MyD88-independent pathway as well as MyD88-dependent pathway and its inhibitory effect was largely unaffected by lipopolysaccharide (LPS) concentration and types of TLR4 ligands. TAK-242 had no effect on the LPS-induced conformational change of TLR4-MD-2 and TLR4 homodimerization. In mouse sepsis model, although TAK-242 alone did not affect bacterial counts in blood, if co-administered with ceftazidime it inhibited the increases in serum cytokine levels and improved survival of mice. CONCLUSIONS AND IMPLICATIONS TAK-242 suppressed TLR4 signalling by binding directly to a specific amino acid Cys747 in the intracellular domain of TLR4. When co-administered with antibiotics, TAK-242 showed potent therapeutic effects in an E. coli-induced sepsis model using BCG-primed mice. Thus, TAK-242 may be a promising therapeutic agent for sepsis.
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Affiliation(s)
- K Takashima
- Pharmaceutical Research Division, Pharmacology Research Laboratories I, Takeda Pharmaceutical Company Limited, 2-17-85 Jusohonmachi, Yodogawa-ku, Osaka, Japan
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8
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Yoshimatsu M, Takizawa K, Nakajima Y, Ogawa Y, Yagihashi K. Abstract No. 377: Percutaneous Transpedicular Vertebral Biopsy Using ISOP (Isocenter Puncture Method) Approach. J Vasc Interv Radiol 2009. [DOI: 10.1016/j.jvir.2008.12.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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9
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Takizawa K, Ogawa Y, Yoshimatsu M, Nakajima Y, Yagihashi K, Fujikawa A, Shimamoto H. Abstract No. 186: Development of a New Subclavian Arterial Infusion Chemotherapy Method Using an Implanted Catheter-Port System After Redistribution of Arterial Tumor Supply for Locally or Recurrent Advanced Breast Cancers. J Vasc Interv Radiol 2009. [DOI: 10.1016/j.jvir.2008.12.175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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10
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Kitaura H, Yoshimatsu M, Fujimura Y, Eguchi T, Kohara H, Yamaguchi A, Yoshida N. An Anti-c-Fms Antibody Inhibits Orthodontic Tooth Movement. J Dent Res 2008; 87:396-400. [DOI: 10.1177/154405910808700405] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Orthodontic force induces osteoclastogenesis in vivo. It has recently been reported that administration of an antibody against the macrophage-colony-stimulating factor (M-CSF) receptor c-Fms blocks osteoclastogenesis and bone erosion induced by tumor necrosis factor-α (TNF-α) administration. This study aimed to examine the effect of an anti-c-Fms antibody on mechanical loading-induced osteoclastogenesis and osteolysis in an orthodontic tooth movement model in mice. Using TNF receptor 1- and 2-deficient mice, we showed that orthodontic tooth movement was mediated by TNF-α. We injected anti-c-Fms antibody daily into a local site, for 12 days, during mechanical loading. The anti-c-Fms antibody significantly inhibited orthodontic tooth movement, markedly reduced the number of osteoclasts in vivo, and inhibited TNF-α-induced osteoclastogenesis in vitro. These findings suggest that M-CSF plays an important role in mechanical loading-induced osteoclastogenesis and bone resorption during orthodontic tooth movement mediated by TNF-α.
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Affiliation(s)
- H. Kitaura
- Divisions of Orthodontic and Dentofacial Orthopedics, Department of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; and
- Department of Oral Restitution, Section of Oral Pathology, Graduate School of Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - M. Yoshimatsu
- Divisions of Orthodontic and Dentofacial Orthopedics, Department of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; and
- Department of Oral Restitution, Section of Oral Pathology, Graduate School of Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Y. Fujimura
- Divisions of Orthodontic and Dentofacial Orthopedics, Department of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; and
- Department of Oral Restitution, Section of Oral Pathology, Graduate School of Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - T. Eguchi
- Divisions of Orthodontic and Dentofacial Orthopedics, Department of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; and
- Department of Oral Restitution, Section of Oral Pathology, Graduate School of Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - H. Kohara
- Divisions of Orthodontic and Dentofacial Orthopedics, Department of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; and
- Department of Oral Restitution, Section of Oral Pathology, Graduate School of Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - A. Yamaguchi
- Divisions of Orthodontic and Dentofacial Orthopedics, Department of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; and
- Department of Oral Restitution, Section of Oral Pathology, Graduate School of Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - N. Yoshida
- Divisions of Orthodontic and Dentofacial Orthopedics, Department of Translational Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; and
- Department of Oral Restitution, Section of Oral Pathology, Graduate School of Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
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Honda K, Yamaguchi Y, Yamanaka Y, Yoshimatsu M, Fukuda Y, Fujishima A. Hydroxyl radical-related electrogenerated chemiluminescence reaction for a ruthenium tris(2,2′)bipyridyl/co-reactants system at boron-doped diamond electrodes. Electrochim Acta 2005. [DOI: 10.1016/j.electacta.2005.05.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sakashita N, Ando Y, Jinnouchi K, Yoshimatsu M, Terazaki H, Obayashi K, Takeya M. Familial amyloidotic polyneuropathy (ATTR Val30Met) with widespread cerebral amyloid angiopathy and lethal cerebral hemorrhage. Pathol Int 2001; 51:476-80. [PMID: 11422811 DOI: 10.1046/j.1440-1827.2001.01228.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We report an autopsy case of familial amyloidotic polyneuropathy (FAP) with cerebral hemorrhage. A 38-year-old woman with a typical FAP pedigree started developing severe diarrhea and sensori-motor polyneuropathy at the age of 28 years; autonomic nervous system, heart and renal dysfunction manifested themselves in the following years. Genetic analysis revealed a single amino acid substitution at codon 30 of transthyretin (ATTR Val30Met). Ten years after her initial symptoms, the patient died of a sudden convulsive attack and respiratory failure. Autopsy revealed lethal cerebral hemorrhages and uremic lungs. Histochemical and immunohistochemical analyses revealed TTR-derived amyloid protein in every tissue examined, particularly in glomeruli and peripheral vessels. Severe meningo-cerebrovascular amyloidosis was also detected. Because uremia causes oxidative damage to the vascular system and amyloid formation is closely associated with oxidative stress, it is possible that uremic endothelial damage facilitated an unusual cerebral amyloid deposition. In typical FAP (ATTR Val30Met), cerebral amyloid angiopathy does not usually have clinical manifestations. However, cerebral amyloid angiopathy should be considered to explain FAP symptoms when some risk factors such as uremic vascular damage are accompanying features.
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Affiliation(s)
- N Sakashita
- Second Department of Pathology, Kumamoto University School of Medicine, Kumamoto, Japan.
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Abstract
Alpha-trifluoromethyl allenol ethers 9a-e were prepared in moderate to good yields by the Julia-Lythgoe process using beta-ethoxy-beta-trifluoromethyl vinylic sulfone 3. Several reactions of 9c were examined to give alpha,beta-unsaturated trifluoromethyl ketone derivatives 11 and 12.
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Affiliation(s)
- M Yoshimatsu
- Department of Chemistry, Faculty of Education, Gifu University, Japan.
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14
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Abstract
The direct lithiation and alkylation of beta-sulfur-alpha-trifluoromethyl substituted enol ethers 1-3 proceeded to give the alkylated products 4a-f, 5, 6a-c in moderate to high yields.
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Affiliation(s)
- M Yoshimatsu
- Department of Chemistry, Faculty of Education, Gifu University, Japan
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15
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Makita O, Ono K, Sakurai T, Tanigawa H, Ando Y, Yamashita K, Yoshimatsu M, Takahashi M. [A case of hepatocellular carcinoma related with exposure to vinyl chloride monomers]. Nihon Shokakibyo Gakkai Zasshi 1997; 94:215-9. [PMID: 9095643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- O Makita
- Department of Radiology, Miyakonojo Medical Association's Hospital
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Abstract
Hyperthermia induces seizures in both humans and rodents, but the underlying mechanism remains unknown. The present study showed that hyperthermia, causing rapid increase in body temperature, increases the concentration of glutamate (Glu) released into a cortical perfusate before onset of seizures in rats and that this increase in Glu concentration correlated with a decrease in seizure threshold temperature. These results indicate that increased cortical extracellular Glu induced by hyperthermia contributes to onset of seizures. The same mechanism may be involved in clinical seizures induced by fever in patients with febrile convulsions or epilepsy.
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Affiliation(s)
- T Morimoto
- Department of Pediatrics, Ehime University School of Medicine, Japan
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18
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Abstract
Three types of rat hyperthermic seizures were observed. The first comprised generalized clonic convulsions preceded by intermittent myoclonus. Ictal EEG showed diffuse intermittent spikes and sequential rapid spike-wave bursts (type 1 seizures). In the other types of seizures, the paroxysmal discharges originated in the occipital region without (type 2a seizures) or with (type 2b seizures) secondary generalization. Type 2a seizures involved no convulsive movement whereas type 2b seizures involved clonic convulsions. The threshold temperatures for type 1, 2a and 2b seizures were 44.1 +/- 0.60, 40.9 +/- 1.47 and 42.1 +/- 0.75 degrees C, respectively. Of these seizures, the type 2 seizures (2a and 2b) did not severely affect the general condition of rats and thus may be an appropriate model for the investigation of febrile seizures.
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Affiliation(s)
- T Morimoto
- Department of Pediatrics, Ehime University School of Medicine, Japan
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Tachibana M, Yasuda N, Yoshimatsu M, Nishimura H, Mizukoshi O. UFT for head and neck cancers: its tissue concentrations and effects on lymphocyte subpopulations. Cancer Chemother Pharmacol 1987; 19:65-8. [PMID: 3102095 DOI: 10.1007/bf00296259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
UFT, a combination of the masked compound of 5-fluorouracil (FT-207) and uracil, was given to head and neck cancer patients for 1 week preoperatively and for 8 weeks postoperatively. Drug concentrations were examined in the surgically removed tissues. The concentrations of FT-207, 5-fluorouracil, and uracil were higher in tumor tissues than in normal tissues. The lymphocyte subpopulations were assessed by cytofluorometry with monoclonal antibodies. There was no evidence that adjuvant chemotherapy with UFT specifically suppresses immunocompetent cells. We therefore conclude that further clinical evaluation of adjuvant chemotherapy with UFT would be worthwhile.
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Abstract
The distribution of wheat germ agglutinin(WGA)-binding sites in the organ of Corti of the guinea pig and mongolian gerbil was studied. WGA was conjugated with gold particles and applied on thin sections of the cochlea embedded in Spurr's resin and in Lowicryl K4M. WGA-binding sites were found on the plasma membrane, lysosomes and cytoskeletons of hair and supporting cells as well as on the tectorial and basilar membranes. No distinct difference was discovered between hair cells and supporting cells in terms of WGA-binding activities.
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Aida H, Yamaguchi S, Iwanami H, Nakajima M, Sakamoto S, Yoshimatsu M, Anzai Y, Watanabe K, Ohya N. [A case of unilateral hyperlucent lung associated with aortic valve disease (author's transl)]. Nihon Kyobu Geka Gakkai Zasshi 1981; 29:1373-80. [PMID: 7299223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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22
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Miyoshi K, Yoshimatsu M, Tada Y, Nakano Y, Kawai N. [Progressive muscular dystrophy]. Nihon Rinsho 1970; 28 Suppl:800-1. [PMID: 5430881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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