1
|
Nakatake R, Okuyama T, Ishizaki M, Yanagida H, Kitade H, Yoshizawa K, Nishizawa M, Sekimoto M. Hepatoprotection of a Standardized Extract of Cultured Lentinula edodes Mycelia against Liver Injury Induced by Ischemia-Reperfusion and Partial Hepatectomy. Nutrients 2024; 16:256. [PMID: 38257149 PMCID: PMC10820669 DOI: 10.3390/nu16020256] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
A standardized extract of cultured Lentinula edodes mycelia (ECLM, AHCC®) has been shown to have beneficial effects on organ metabolism. ECLM has been indicated to have liver protective properties by suppressing inflammatory responses. The pathogenesis of hepatic ischemia-reperfusion injury is thought to involve the induction of inflammatory mediators. However, whether ECLM affects inflammatory mediators caused by warm hepatic ischemia-reperfusion injury and partial hepatectomy (HIRI+PH) has not been clarified. In this study, we evaluated the protective effects of ECLM against liver damage caused by HIRI+PH. Rats were fed a normal diet (HIRI+PH) or a normal diet with 2% ECLM (HIRI+PH and ECLM) for ten days, then the liver and duodenal ligament were clamped and subjected to 15 min of hepatic ischemia. After 70% hepatectomy, the inflow occlusion was released, and liver and blood samples were collected at 3, 6, and 24 h. The effect of ECLM on mortality induced by 30 min of ischemia and hepatectomy was evaluated. The results showed that ECLM attenuated pathological liver damage, including apoptosis, in the rats treated with HIRI+PH, and decreased serum aminotransferase activity; ECLM decreased mRNA levels of the inflammation-related genes inducible nitric oxide synthase and C-X-C motif chemokine ligand 1, and increased mRNA levels of interleukin 10, an anti-inflammatory cytokine; ECLM increased hepatocyte growth factor mRNA levels and Ki-67 labeled nuclei in the liver at 24 h; ECLM significantly reduced HIRI+PH-induced mortality. In conclusion, ECLM may prevent HIRI+PH-induced liver injury in part by suppressing various inflammatory responses and promoting liver regeneration.
Collapse
Affiliation(s)
- Richi Nakatake
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.)
| | - Tetsuya Okuyama
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.)
| | - Morihiko Ishizaki
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.)
| | - Hidesuke Yanagida
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.)
| | - Hiroaki Kitade
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.)
| | - Katsuhiko Yoshizawa
- Department of Innovative Food Sciences, School of Food Sciences and Nutrition, Mukogawa Women’s University, 6-46 Ikebiraki-cho, Nishinomiya 663-8558, Hyogo, Japan;
| | - Mikio Nishizawa
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Shiga, Japan;
| | - Mitsugu Sekimoto
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.)
| |
Collapse
|
2
|
Nakatake R, Okuyama T, Hashimoto Y, Ishizaki M, Yanagida H, Kitade H, Yoshizawa K, Nishizawa M, Sekimoto M. Sulforaphane Is Protective against Warm Ischemia/Reperfusion Injury and Partial Hepatectomy in Rats. Int J Mol Sci 2024; 25:579. [PMID: 38203749 PMCID: PMC10778753 DOI: 10.3390/ijms25010579] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/27/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024] Open
Abstract
Sulforaphane (SFN) has various beneficial effects on organ metabolism. However, whether SFN affects inflammatory mediators induced by warm hepatic ischemia/reperfusion injury (HIRI) is unclear. To investigate the hepatoprotective effects of SFN using an in vivo model of HIRI and partial hepatectomy (HIRI + PH), rats were subjected to 15 min of hepatic ischemia with blood inflow occlusion, followed by 70% hepatectomy and release of the inflow occlusion. SFN (5 mg/kg) or saline was randomly injected intraperitoneally 1 and 24 h before ischemia. Alternatively, ischemia was prolonged for 30 min to evaluate the effect on mortality. The influence of SFN on the associated signaling pathways was analyzed using the interleukin 1β (IL-1β)-treated primary cultured rat hepatocytes. In the HIRI + PH-treated rats, SFN reduced serum liver enzyme activities and the frequency of pathological liver injury, such as apoptosis and neutrophil infiltration. SFN suppressed tumor necrosis factor-alpha (TNF-α) mRNA expression and inhibited nuclear factor-kappa B (NF-κB) activation by HIRI + PH. Mortality was significantly reduced by SFN. In IL-1β-treated hepatocytes, SFN suppressed the expression of inflammatory cytokines and NF-κB activation. Taken together, SFN may have hepatoprotective effects in HIRI + PH in part by inhibiting the induction of inflammatory mediators, such as TNF-α, via the suppression of NF-κB in hepatocytes.
Collapse
Affiliation(s)
- Richi Nakatake
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.); (Y.H.)
| | - Tetsuya Okuyama
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.); (Y.H.)
| | - Yuki Hashimoto
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.); (Y.H.)
| | - Morihiko Ishizaki
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.); (Y.H.)
| | - Hidesuke Yanagida
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.); (Y.H.)
| | - Hiroaki Kitade
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.); (Y.H.)
| | - Katsuhiko Yoshizawa
- Department of Innovative Food Sciences, School of Food Sciences and Nutrition, Mukogawa Women’s University, 6-46 Ikebiraki-cho, Nishinomiya 663-8558, Hyogo, Japan;
| | - Mikio Nishizawa
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Shiga, Japan
| | - Mitsugu Sekimoto
- Department of Surgery, Kansai Medical University, Hirakata 573-1010, Osaka, Japan; (T.O.); (Y.H.)
| |
Collapse
|
3
|
Kawashima H, Yoshizawa K. The physiological and pathological properties of Mead acid, an endogenous multifunctional n-9 polyunsaturated fatty acid. Lipids Health Dis 2023; 22:172. [PMID: 37838679 PMCID: PMC10576882 DOI: 10.1186/s12944-023-01937-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/08/2023] [Indexed: 10/16/2023] Open
Abstract
Mead acid (MA, 5,8,11-eicosatrienoic acid) is an n-9 polyunsaturated fatty acid (PUFA) and a marker of essential fatty acid deficiency, but nonetheless generally draws little attention. MA is distributed in various normal tissues and can be converted to several specific lipid mediators by lipoxygenase and cyclooxygenase. Recent pathological and epidemiological studies on MA raise the possibility of its effects on inflammation, cancer, dermatitis and cystic fibrosis, suggesting it is an endogenous multifunctional PUFA. This review summarizes the biosynthesis, presence, metabolism and physiological roles of MA and its relation to various diseases, as well as the significance of MA in PUFA metabolism.
Collapse
Affiliation(s)
- Hiroshi Kawashima
- Research Institute, Suntory Global Innovation Center Ltd, Seika, Kyoto, Japan.
| | - Katsuhiko Yoshizawa
- Department of Innovative Food Sciences, School of Food Sciences and Nutrition, Mukogawa Women's University, Nishinomiya, Hyogo, Japan
| |
Collapse
|
4
|
Nakatake R, Okuyama T, Kotsuka M, Ishizaki M, Kitade H, Yoshizawa K, Tolba RH, Nishizawa M, Sekimoto M. Combination therapy with a sense oligonucleotide to inducible nitric oxide synthase mRNA and human soluble thrombomodulin improves survival of sepsis model rats after partial hepatectomy. Shock 2023:00024382-990000000-00199. [PMID: 37141168 DOI: 10.1097/shk.0000000000002135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
ABSTRACT Sepsis after a major hepatectomy is a critical problem. In septic shock, the inflammatory mediator, nitric oxide (NO), is overproduced in hepatocytes and macrophages. The natural antisense (AS) transcripts, non-coding RNAs, are transcribed from a gene that encodes inducible nitric oxide synthase (iNOS). iNOS AS transcripts interact with and stabilize iNOS mRNAs. A single-stranded "sense oligonucleotide" (designated as SO1) corresponding to the iNOS mRNA sequence inhibits mRNA-AS transcript interactions and reduces iNOS mRNA levels in rat hepatocytes. In contrast, recombinant human soluble thrombomodulin (rTM) treats disseminated intravascular coagulopathy by suppressing coagulation, inflammation, and apoptosis. In this study, the combination therapy of SO1 and a low dose of rTM was evaluated for hepatoprotection in a rat septic shock model after partial hepatectomy. Rats underwent 70% hepatectomy, followed by intravenous (i.v.) injection of lipopolysaccharide (LPS) after 48 h. SO1 was injected (i.v.) simultaneously with LPS, whereas rTM was injected (i.v.) 1 h before LPS injection. Similarly to our previous report, SO1 increased survival after LPS injection. When rTM, which has different mechanisms of action, was combined with SO1, it did not interfere with the effect of SO1 and showed a significant increase in survival compared to LPS alone treatment. In serum, the combined treatment decreased NO levels. In the liver, the combined treatment inhibited iNOS mRNA and protein expression. A decreased iNOS AS transcript expression by the combined treatment was also observed. The combined treatment decreased mRNA expression of the inflammatory and pro-apoptotic genes while increasing that of the anti-apoptotic gene. Furthermore, the combined treatment reduced the number of myeloperoxidase-positive cells. These results suggested that the combination of SO1 and rTM has therapeutic potential for sepsis.
Collapse
Affiliation(s)
| | - Tetsuya Okuyama
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Masaya Kotsuka
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Morihiko Ishizaki
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Hiroaki Kitade
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| | - Katsuhiko Yoshizawa
- Laboratory of Environmental Sciences, Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, 6-46 Ikebiraki-cho, Nishinomiya, Hyogo 663-8558, Japan
| | - Rene H Tolba
- Institute for Laboratory Animal Science and Experimental Surgery, RWTH-Aachen University, Pauwelsstraße 30 52074 Aachen Germany
| | - Mikio Nishizawa
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Mitsugu Sekimoto
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka 573-1010, Japan
| |
Collapse
|
5
|
Uemura M, Furuse T, Yamada I, Kushida T, Abe T, Imai K, Nagao S, Kudoh M, Yoshizawa K, Tamura M, Kiyonari H, Wakana S, Hirano S. Deficiency of protocadherin 9 leads to reduction in positive emotional behaviour. Sci Rep 2022; 12:11933. [PMID: 35831353 PMCID: PMC9279467 DOI: 10.1038/s41598-022-16106-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 07/05/2022] [Indexed: 11/08/2022] Open
Abstract
Protocadherin 9 (Pcdh9) is a member of the cadherin superfamily and is uniquely expressed in the vestibular and limbic systems; however, its physiological role remains unclear. Here, we studied the expression of Pcdh9 in the limbic system and phenotypes of Pcdh9-knock-out mice (Pcdh9 KO mice). Pcdh9 mRNA was expressed in the fear extinction neurons that express protein phosphatase 1 regulatory subunit 1 B (Ppp1r1b) in the posterior part of the basolateral amygdala (pBLA), as well as in the Cornu Ammonis (CA) and Dentate Gyrus (DG) neurons of the hippocampus. We show that the Pcdh9 protein was often localised at synapses. Phenotypic analysis of Pcdh9 KO mice revealed no apparent morphological abnormalities in the pBLA but a decrease in the spine number of CA neurons. Further, the Pcdh9 KO mice were related to features such as the abnormal optokinetic response, less approach to novel objects, and reduced fear extinction during recovery from the fear. These results suggest that Pcdh9 is involved in eliciting positive emotional behaviours, possibly via fear extinction neurons in the pBLA and/or synaptic activity in the hippocampal neurons, and normal optokinetic eye movement in brainstem optokinetic system-related neurons.
Collapse
Affiliation(s)
- Masato Uemura
- Laboratory of Cell Biology, Faculty of Medicine, Kansai Medical University, Shinmachi 2-5-1, Hirakata City, Osaka, 573-1010, Japan
| | - Tamio Furuse
- Technology and Development Team for Mouse Phenotype Analysis, Japan Mouse Clinic, RIKEN BioResource Research Center, Tsukuba, Ibaraki, 3050074, Japan
| | - Ikuko Yamada
- Technology and Development Team for Mouse Phenotype Analysis, Japan Mouse Clinic, RIKEN BioResource Research Center, Tsukuba, Ibaraki, 3050074, Japan
| | - Tomoko Kushida
- Technology and Development Team for Mouse Phenotype Analysis, Japan Mouse Clinic, RIKEN BioResource Research Center, Tsukuba, Ibaraki, 3050074, Japan
| | - Takaya Abe
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo, 650-0047, Japan
| | - Keiko Imai
- Laboratory of Cell Biology, Faculty of Medicine, Kansai Medical University, Shinmachi 2-5-1, Hirakata City, Osaka, 573-1010, Japan
| | - Soichi Nagao
- Laboratory for Motor Learning Control, RIKEN Brain Science Institute, Wako, Saitama, 351-0198, Japan
- Laboratory for Integrative Brain Function, Nozomi Hospital, Komuro 3170, Ina, Saitama, 362-0806, Japan
| | - Moeko Kudoh
- Laboratory for Motor Learning Control, RIKEN Brain Science Institute, Wako, Saitama, 351-0198, Japan
- Department of Neurophysiology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, Tokyo, 187-8502, Japan
| | - Katsuhiko Yoshizawa
- Laboratory of Environmental Science, Department of Innovative Food Sciences, School of Food Sciences and Nutrition, Mukogawa Women's University, Nishinomiya, Hyogo, 663-8558, Japan
| | - Masaru Tamura
- Technology and Development Team for Mouse Phenotype Analysis, Japan Mouse Clinic, RIKEN BioResource Research Center, Tsukuba, Ibaraki, 3050074, Japan
| | - Hiroshi Kiyonari
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, 2-2-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo, 650-0047, Japan
| | - Shigeharu Wakana
- Technology and Development Team for Mouse Phenotype Analysis, Japan Mouse Clinic, RIKEN BioResource Research Center, Tsukuba, Ibaraki, 3050074, Japan
- Department of Animal Experimentation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, 650-0047, Japan
| | - Shinji Hirano
- Laboratory of Cell Biology, Faculty of Medicine, Kansai Medical University, Shinmachi 2-5-1, Hirakata City, Osaka, 573-1010, Japan.
| |
Collapse
|
6
|
Hashimoto Y, Yoshizawa K, Kaido Y, Takenouchi A, Terao K, Yasui H, Yoshikawa Y. Exercise Performance Upregulatory Effect of R-α-Lipoic Acid with γ-Cyclodextrin. Nutrients 2021; 14:nu14010021. [PMID: 35010896 PMCID: PMC8746793 DOI: 10.3390/nu14010021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/17/2021] [Accepted: 12/18/2021] [Indexed: 01/25/2023] Open
Abstract
α-Lipoic acid (ALA) is a vitamin-like substance that is an indispensable supporting factor for a large number of enzymes. Due to its optical activity, ALA has optical isomers RALA and SALA. The major role of RALA is in energy metabolism. However, RALA cannot be used as a pharmaceutical or nutraceutical because it is sensitive to heat and acid conditions. Previous studies have shown that RALA complexed with γ-cyclodextrin (CD) has a higher antioxidant capacity than that of free RALA. The antioxidant enzyme system protects against intense exercise-induced oxidative damage and is related to the physical status of athletes. The aim of this study was to examine the effect of CD/RALA complex supplementation on antioxidant activity and performance during high-intensity exercise. Twenty-four male C3H/HeSlc mice were divided into four groups (n = 6): swimming+distilled water administration (C), swimming+CD/RALA supplementation (CD/RALA), swimming+RALA suplementation (RALA), and swimming+CD supplementation (CD). Blood ammonia elevation due to exercise stress was repressed by CD/RALA supplementation. The oxidative stress in the kidney increased after exercise and was reduced by CD/RALA supplementation. Our findings suggest that CD/RALA supplementation may be useful for improving the exercise performance in athletes.
Collapse
Affiliation(s)
- Yuki Hashimoto
- Department of Health Sports Nutrition, Faculty of Health and Welfare, Kobe Women’s University, Hyogo 650-0046, Japan; (Y.H.); (Y.K.)
| | - Katsuhiko Yoshizawa
- Department of Innovative Food Sciences, School of Food Sciences and Nutrition, Mukogawa Women’s University, Hyogo 663-8183, Japan; (K.Y.); (A.T.)
| | - Yuka Kaido
- Department of Health Sports Nutrition, Faculty of Health and Welfare, Kobe Women’s University, Hyogo 650-0046, Japan; (Y.H.); (Y.K.)
| | - Akiko Takenouchi
- Department of Innovative Food Sciences, School of Food Sciences and Nutrition, Mukogawa Women’s University, Hyogo 663-8183, Japan; (K.Y.); (A.T.)
| | - Keiji Terao
- CycloChem Company Limited, Hyogo 650-0047, Japan;
| | - Hiroyuki Yasui
- Department of Analytical and Bioinorganic Chemistry, Kyoto Pharmaceutical University, 5 Misasagi, Nakautityo, Yamashina-ku, Kyoto 607-8414, Japan;
| | - Yutaka Yoshikawa
- Department of Health Sports Nutrition, Faculty of Health and Welfare, Kobe Women’s University, Hyogo 650-0046, Japan; (Y.H.); (Y.K.)
- Correspondence: ; Tel.: +81-78-303-2586
| |
Collapse
|
7
|
Moroi A, Takayama A, Baba N, Iguchi R, Yoshizawa K, Ueki K. Influence of lingual plate fracture pattern on remodelling site during the healing process of sagittal split ramus osteotomy. Int J Oral Maxillofac Surg 2021; 51:651-658. [PMID: 34663511 DOI: 10.1016/j.ijom.2021.09.011] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 07/15/2021] [Accepted: 09/20/2021] [Indexed: 11/24/2022]
Abstract
The purpose of this study was to investigate whether differences in the pattern of the lingual plate split in sagittal split ramus osteotomy (SSRO) affect the remodelling of the split site. Sixty-one patients with mandibular prognathism (122 sides) underwent SSRO. Computed tomography (CT) was performed at 1 week and 1 year after SSRO. Bone splits were classified according to the lingual split scale (LSS) and the lateral bone cut end (LBCE) by evaluating CT images at 1 week. The remodelling at the split sites was evaluated by superimposing the CT images obtained at 1 week and 1 year. Regarding the LSS pattern, significant differences were observed in the distance between anteroposterior ramus points (P = 0.033) and the ramus area in the axial image (P = 0.011). The LBCE pattern also showed a significant difference in the distance between anteroposterior ramus points (P = 0.043). In conclusion, the differences in the lingual plate split and ramus cut end of the SSRO influence the postoperative remodelling in the anteroposterior region of the split site.
Collapse
Affiliation(s)
- A Moroi
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Chuo, Yamanashi, Japan.
| | - A Takayama
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Chuo, Yamanashi, Japan
| | - N Baba
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Chuo, Yamanashi, Japan
| | - R Iguchi
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Chuo, Yamanashi, Japan
| | - K Yoshizawa
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Chuo, Yamanashi, Japan
| | - K Ueki
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Chuo, Yamanashi, Japan
| |
Collapse
|
8
|
Moroi A, Saito Y, Takayama A, Yoshizawa K, Ueki K. Antibiotic prophylaxis for sagittal split ramus osteotomy using resorbable plate and screw fixation: a randomised trial to compare extended dual-agent and inpatient single-agent regimens. Br J Oral Maxillofac Surg 2020; 59:586-591. [PMID: 33518395 DOI: 10.1016/j.bjoms.2020.10.003] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 10/02/2020] [Indexed: 10/23/2022]
Abstract
Resorbable materials are used to fix bony fragments after sagittal split ramus osteotomy (SSRO), but to our knowledge, there is no clear regimen for antibiotic prophylaxis when such materials are used. The purpose of this study therefore was to compare inpatient single-agent and extended dual-agent antibiotic prophylaxis for the prevention of surgical site infections (SSI) in patients after SSRO. This prospective study included 100 patients who underwent SSRO for deformities of the jaw. Cephalometric analysis was performed preoperatively, and at one month and one year postoperatively. Patients were divided into two groups of 50 each. Group A was given cefazolin sodium 1g preoperatively and every eight hours for 48 hours postoperatively. Group B was given cefazolin sodium 1g preoperatively and every eight hours for 48 hours postoperatively, after which they were provided with oral amoxicillin for three days. Both groups were assessed for SSIs for one year postoperatively using the Clavien-Dindo classification. SSIs were documented in seven patients in Group A and six in Group B, with no significant difference between the groups. The two regimens had no significant association with SSI. In conclusion, our results suggest that the inpatient, single-agent, postoperative antibiotic regimen is sufficient to prevent SSI in patients who have SSRO with resorbable plate and screw fixation.
Collapse
Affiliation(s)
- A Moroi
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduated Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan.
| | - Y Saito
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduated Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan
| | - A Takayama
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduated Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan
| | - K Yoshizawa
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduated Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan
| | - K Ueki
- Department of Oral and Maxillofacial Surgery, Division of Clinical Medicine, Graduated Faculty of Interdisciplinary, University of Yamanashi, Yamanashi, Japan
| |
Collapse
|
9
|
Imanishi A, Yoshizawa K, Tsutsui K, Omori Y, Ono T, Ito Uemura S, Mishima K, Kondo H, Kanbayashi T. 0757 Increasing Number of Cases Who Had Both Hypersomnolence Disorders and Developmental Disorders With Orexin Measurements. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Recently, attention has been paid to the relationship between developmental disorders such as attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD), and sleep disorders. We meet many developmental disorder patients who complaint hypersomnolence. Among these patients, cases with coexistence of central hypersomnia and developmental disorders, or developmental disorder alone were increased. Therefore, we first investigated patients with the complaint of hypersomnolence, who were also suspected developmental disorders. Furthermore, we have been measuring CSF orexin in 17 cases suspected of both disorders to investigate orexin levels of these patients.
Methods
86patients who complained of EDS with suspicion of developmental disorders had been examined. In order to diagnose hypersomnolence disorders, PSG and MSLT were performed. Psychological examinations were performed for diagnosing developmental disorders.We have been measuring for CSF orexin in 17 cases suspected both hypersomnolence and developmental disorders. We examined the onset of hypersomnolence and the clinical history of these ADHD or ASD cases for more details.
Results
In 86 examined cases, developmental disorders coexisted in 30 cases. Among 30 cases, ADHD were 18, ASD were 6 and both diagnosed were 6 cases. Among them, 20 cases diagnosed as having coexistence of hypersomnia (8: narcolepsy, 12: IHS) and developmental disorders (ADHD:12, ASD:4, ADHD/ASD:4). In 17 cases with orexin measurements, 10 cases coexisted ADHD and 4 cases coexisted ASD. Two cases diagnosed as both ADHD and ASD. In 10 ADHD cases, 3 cases had low orexin levels, and 7 cases had normal orexin levels. Other 7 ASD cases had normal orexin levels.
Conclusion
ADHD has a higher rate of central hypersomnia (12/18) compared with ASD and the rate of narcolepsy was also high (5/12). While patients in ASD was diagnosed as IHS (3/6), narcolepsy cases were not observed. It became clear that the majority of patients had developmental disorder or had a tendency for developmental disorder before the onset of hypersomnolence.Although it is possible that ADHD/ASD symptoms may be exacerbated by orexin dysfunctions, ADHD/ASD may not newly occur. There were cases with low orexin levels, but it seems that narcolepsy happened to coexist with developmental disorders.
Support
a
Collapse
Affiliation(s)
- A Imanishi
- Akita University School of Medicine, Akita, JAPAN
| | - K Yoshizawa
- Akita University School of Medicine, Akita, JAPAN
| | - K Tsutsui
- Akita University School of Medicine, Akita, JAPAN
| | - Y Omori
- Tokyo Metropolitan Geriatric Hospital, Tokyo, JAPAN
| | - T Ono
- Sleep & Circadian Neurobiology Laboratory, Stanford University,, California, CA
| | - S Ito Uemura
- Akita University Graduate School of Health Sciences, Akita, JAPAN
| | - K Mishima
- Akita University School of Medicine, Akita, JAPAN
| | - H Kondo
- International Institute for Integrative Sleep Medicine (IIIS), Tsukuba University,, Tsukuba, JAPAN
| | - T Kanbayashi
- International Institute for Integrative Sleep Medicine (IIIS), Tsukuba University,, Tsukuba, JAPAN
| |
Collapse
|
10
|
Nakatake R, Hishikawa H, Kotsuka M, Ishizaki M, Matsui K, Nishizawa M, Yoshizawa K, Kaibori M, Okumura T. The Proton Pump Inhibitor Lansoprazole Has Hepatoprotective Effects in In Vitro and In Vivo Rat Models of Acute Liver Injury. Dig Dis Sci 2019; 64:2854-2866. [PMID: 30989463 DOI: 10.1007/s10620-019-05622-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 04/08/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND/AIMS The proton pump inhibitor lansoprazole (LPZ) is clinically used to reduce gastric acid secretion, but little is known about its possible hepatoprotective effects. This study aimed to investigate the hepatoprotective effects of LPZ and its potential mechanisms using in vitro and in vivo rat models of liver injury. METHODS For the in vitro model of liver injury, primary cultured rat hepatocytes were treated with interleukin-1β in the presence or absence of LPZ. The influence of LPZ on inducible nitric oxide synthase (iNOS) induction and nitric oxide (NO) production and on the associated signaling pathways was analyzed. For the in vivo model, rats were treated with D-galactosamine (GalN) and lipopolysaccharide (LPS). The effects of LPZ on survival and proinflammatory mediator expression (including iNOS and tumor necrosis factor-α) in these rats were examined. RESULTS LPZ inhibited iNOS induction partially through suppression of the nuclear factor-kappa B signaling pathway in hepatocytes, thereby reducing potential liver injury from excessive NO levels. Additionally, LPZ increased survival by 50% and decreased iNOS, tumor necrosis factor-α, and cytokine-induced neutrophil chemoattractant-1 mRNA expression in the livers of GalN/LPS-treated rats. LPZ also inhibited nuclear factor-kappa B activation by GalN/LPS. CONCLUSIONS LPZ inhibits the induction of several inflammatory mediators (including cytokines, chemokines, and NO) partially through suppression of nuclear factor-kappa B, resulting in the prevention of fulminant liver failure. The therapeutic potential of LPZ for liver injuries warrants further investigation.
Collapse
Affiliation(s)
- Richi Nakatake
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan.
| | - Hidehiko Hishikawa
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Masaya Kotsuka
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Morihiko Ishizaki
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Kosuke Matsui
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Mikio Nishizawa
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan
| | - Katsuhiko Yoshizawa
- Laboratory of Environmental Sciences, Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, 6-46 Ikebiraki-cho, Nishinomiya, Hyogo, 663-8558, Japan
| | - Masaki Kaibori
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan
| | - Tadayoshi Okumura
- Department of Surgery, Kansai Medical University, 2-5-1 Shinmachi, Hirakata, Osaka, 573-1010, Japan.,Research Organization of Science and Technology, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan
| |
Collapse
|
11
|
Tanaka J, Yoshizawa K, Hirayama K, Karama M, Wanjihia V, Changoma MS, Kaneko S. Relationship between dietary patterns and stunting in preschool children: a cohort analysis from Kwale, Kenya. Public Health 2019; 173:58-68. [PMID: 31254679 DOI: 10.1016/j.puhe.2019.05.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/15/2019] [Accepted: 05/15/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Stunting is a significant cause of poor cognitive performance and lower school achievement. Stunting is observed among pre-school children in several areas in Africa; however, not all children are affected, and children with and without stunting are seen in the same communities. Therefore, this study aimed to identify nutritional and other factors that prevent stunting that may exist in local communities. STUDY DESIGN This is a prospective cohort study. METHODS Data were extracted from the Health and Demographic Surveillance System conducted in Kwale County, Kenya. The cohort consisted of all households with children less than five years old, within a radius of 2.2 km from a local health centre. A dietary pattern (DP) survey with a semi-quantitative food frequency questionnaire was conducted on caretakers of children who were voluntary participated from the cohort between June 2012 and August 2012. Using cluster analysis, the children were assigned to a DP group. Logistic regression analysis was applied to calculate the adjusted odds ratios (aORs) of DPs for stunting controlling for other factors. RESULTS In total, 402 children were included in the analysis. By cluster analysis, three DPs were identified: protein-rich DP; traditional DP; and traditional DP complemented by breastfeeding. The aOR of a child becoming stunted from a normal height during the study period among children who received a traditional DP compared with those who had a protein-rich DP was 2.78 (95% confidence interval [CI]: 1.02-7.55). However, the aOR for children who were already stunted at the start of the study and had a traditional DP was 1.49 (95% CI: 0.82-2.72). Increased aORs of stunting were observed among children aged over 12 months compared with children aged 6-11 months, and the effects of DPs were modified by age in months from 12 to 35 months; however, the effects were near the null value for children over 36 months of age, although these were not statistically significant. CONCLUSIONS We found that the traditional DP showed a higher risk for stunting compared with the protein-rich DP, and the most vulnerable age range for stunting was between 12 and 35 months. Interventions to prevent stunting should focus on providing 12- to 35-month-old children with locally available, protein-rich foods.
Collapse
Affiliation(s)
- J Tanaka
- Nagasaki University Graduate School of Biomedical Sciences, Japan; Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Japan.
| | - K Yoshizawa
- Department of Nutrition, Harvard T. H. Chan School of Public Health, USA.
| | - K Hirayama
- Department of Immunogenetics, Institute of Tropical Medicine, Nagasaki University, Japan.
| | - M Karama
- Centre for Public Health Research, Kenya Medical Research Institute (KEMRI), Nairobi, Kenya; Umma University, Kenya.
| | - V Wanjihia
- Centre for Public Health Research, Kenya Medical Research Institute (KEMRI), Nairobi, Kenya.
| | - M S Changoma
- Nagasaki University Institute of Tropical Medicine (NUITM)- Kenya Medical Research Institute (KEMRI) Project, Kenya.
| | - S Kaneko
- Department of Ecoepidemiology, Institute of Tropical Medicine, Nagasaki University, Japan; Nagasaki University Institute of Tropical Medicine (NUITM)- Kenya Medical Research Institute (KEMRI) Project, Kenya; School of Tropical Medicine & Global Health, Nagasaki University, Japan.
| |
Collapse
|
12
|
Ramos MF, Baker J, Atzpodien EA, Bach U, Brassard J, Cartwright J, Farman C, Fishman C, Jacobsen M, Junker-Walker U, Kuper F, Moreno MCR, Rittinghausen S, Schafer K, Tanaka K, Teixeira L, Yoshizawa K, Zhang H. Nonproliferative and Proliferative Lesions of the Ratand Mouse Special Sense Organs(Ocular [eye and glands], Olfactory and Otic). J Toxicol Pathol 2018; 31:97S-214S. [PMID: 30158741 PMCID: PMC6108092 DOI: 10.1293/tox.31.97s] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Affiliation(s)
| | - Julia Baker
- Member of eye subgroup
- Charles River Laboratories, Inc., Frederick, MD, USA
| | | | - Ute Bach
- Member of eye subgroup
- Bayer AG, Wuppertal, Germany
| | | | | | | | - Cindy Fishman
- Member of eye subgroup
- Member of glands of the eye subgroup
- GlaxoSmithKline, King of Prussia, PA, USA
| | | | | | - Frieke Kuper
- Member of olfactory subgroup
- Retired; formerly The Netherlands Organization for Applied
Scientific Research (TNO), Zeist, the Netherlands
| | | | | | - Ken Schafer
- Member of eye subgroup
- Member of otic subgroup
- Vet Path Services, Inc., Mason, OH, USA
| | - Kohji Tanaka
- Member of eye subgroup
- Nippon Boehringer Ingelheim, Japan
| | | | | | | |
Collapse
|
13
|
Naito Y, Yoshikawa Y, Yoshizawa K, Takenouchi A, Yasui H. Beneficial Effect of Bis(Hinokitiolato)Zn Complex on High-fat Diet-induced Lipid Accumulation in Mouse Liver and Kidney. ACTA ACUST UNITED AC 2017; 31:1145-1151. [PMID: 29102937 DOI: 10.21873/invivo.11181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 09/28/2017] [Accepted: 09/29/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIM Metabolic syndrome-induced lifestyle-related diseases include diabetes mellitus (DM) and hypertension, and Zn-based compounds have effects on DM. We aimed to investigate the ameliorating effects of bis(hinokitiolato)Zn, [Zn(hkt)2] on lipid metabolism in the liver and kidney, histopathologically. MATERIALS AND METHODS We used a high-fat diet (HFD)-fed C57BL/6J mouse model and administered a diet containing 10-20 mg Zn/kg body weight (BW) or 20 mg pioglitazone/kg BW as the positive control. After the treatments, we collected blood, liver, and kidney samples and morphologically evaluated the mouse organs for fat accumulation. RESULTS After a 4-month HFD administration, ectopic fat deposition was detected in the liver and kidney. Furthermore, Zn accumulation in the liver and kidney increased following [Zn(hkt)2] treatment, that reduced lipid accumulations and lipid toxicity in these tissues. CONCLUSION The results of this study suggest that [Zn(hkt)2] could be a novel anti-dyslipidaemia compound for treating diet-induced obesity.
Collapse
Affiliation(s)
- Yuki Naito
- Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Yutaka Yoshikawa
- Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan.,Department of Health, Sports, and Nutrition, Faculty of Health and Welfare, Kobe Women's University, Kobe, Japan
| | - Katsuhiko Yoshizawa
- Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, Nishinomiya, Japan
| | - Akiko Takenouchi
- Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, Nishinomiya, Japan
| | - Hiroyuki Yasui
- Department of Analytical and Bioinorganic Chemistry, Division of Analytical and Physical Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan
| |
Collapse
|
14
|
Onoue H, Murakami K, Yoshizawa K, Yokota T, Norimine S, Akaiwa Y, Kamiya F, Ogawa T, Kamiya T, Hara M, Takiguchi Y, Numahata K, Yamaguchi Y, Tamura N, Miyamoto T. Successful amyotrophic lateral sclerosis treated with edaravone circle support network building from Dokkyo Medical University Koshigaya hospital (Successful allstar net from DMUK). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1994] [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: 11/27/2022]
|
15
|
Arai G, Ogi M, Kobayashi K, Okuno N, Takahara T, Fukushima K, Yoshizawa K. Abiraterone acetate (AA) + prednisolone (P) for metastatic castration-resistant prostate cancer (mCRPC) with early progression or non-response to androgen deprivation therapy (ADT). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx370.006] [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: 11/12/2022] Open
|
16
|
Tsumaru S, Masumoto H, Yoshioka M, Yoshizawa K, Kawatou M, Ikuno T, Ikeda T, Tabata Y, Yamashita J, Minatoya K. P2559Transplantation of human iPS cell-derived endothelial and mural cells incorporated with gelatin sponge scaffold increased the blood perfusion in a murine hindlimb ischemia model. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2559] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
17
|
Yoshizawa K, Souza-Silva M, Ferreira RL. Disjunct Occurrence of Trichadenotecnum s.str. in Southeastern Brazil (Psocodea: "Psocoptera": Psocidae), with Description of a New Species. Neotrop Entomol 2017; 46:169-174. [PMID: 27743218 DOI: 10.1007/s13744-016-0449-z] [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] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 09/17/2016] [Indexed: 06/06/2023]
Abstract
A new barklouse species belonging to the Trichadenotecnum s.str. clade (Psocodea: "Psocoptera": Psocidae) was described from southeastern Brazil (Minas Gerais state). This locality is highly isolated (about 3400 km) from the closest known distributional range of this clade. It also represents the southernmost distributional record of Trichadenotecnum s.str. Phylogenetic placement of the species and biogeography of Neotropical Trichadenotecnum were briefly discussed. Trichadenotecnum punctipenne New, 1972 described from Brazil was synonymized with Trichadenotecnum pardus Badonnel, 1955.
Collapse
Affiliation(s)
- K Yoshizawa
- Systematic Entomology, School of Agriculture, Hokkaido Univ, Sapporo, 060-8589, Japan.
| | - M Souza-Silva
- Centro de Estudos em Biologia Subterrânea, Setor de Zoologia Geral, Departamento de Biologia, Univ Federal de Lavras, Lavras, Brasil
| | - R L Ferreira
- Centro de Estudos em Biologia Subterrânea, Setor de Zoologia Geral, Departamento de Biologia, Univ Federal de Lavras, Lavras, Brasil
| |
Collapse
|
18
|
Ueki K, Yoshizawa K, Moroi A, Ikawa H, Iguchi R, Kosaka A, Hotta A, Tsutsui T. Evaluation of maxillary sinus after Le Fort I osteotomy using different fixation materials. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1119] [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: 11/25/2022]
|
19
|
Moroi A, Ikawa H, Yoshizawa K, Ueki K. Effect on surface character and mechanical property of unsintered hydroxyapatite/poly- l -lactic acid material by ultraviolet treatment. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1175] [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]
|
20
|
Moroi A, Yoshizawa K, Iguchi R, Kosaka A, Ikawa H, Saida Y, Hotta A, Tsutsui T, Ueki K. Comparison of the computed tomography values of the bone fragment gap after sagittal split ramus osteotomy in mandibular prognathism with and without asymmetry. Int J Oral Maxillofac Surg 2016; 45:1520-1525. [DOI: 10.1016/j.ijom.2016.08.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 05/18/2016] [Accepted: 08/24/2016] [Indexed: 11/28/2022]
|
21
|
Yuki M, Emoto Y, Yoshizawa K, Yuri T, Tsubura A. Intestinal Bacterial Infection Diagnosed by Histological Examination of Endoscopic Biopsy Specimens. Case Rep Gastroenterol 2016; 10:629-632. [PMID: 27920653 PMCID: PMC5121558 DOI: 10.1159/000452212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 10/03/2016] [Indexed: 11/19/2022] Open
Abstract
Intestinal spirochetosis (IS) in humans is characterized by spirochetal microorganisms attached to the luminal surface of the colonic epithelium. In the present case, attached organisms appeared as 3- to 4 μm-thick (average thickness, 3.4 μm) basophilic fringes or haze in HE-stained endoscopic biopsy specimens. The basophilic fringes were clearly labeled by Treponema pallidum antiserum. Because IS is relatively rare in developed countries, thin basophilic fringes characteristic of IS are readily overlooked. Thus, the recognition of histological characteristics of this disease is important for its diagnosis.
Collapse
Affiliation(s)
- Michiko Yuki
- Department of Pathology II, Kansai Medical University, Hirakata, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, Hirakata, Japan
| | | | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, Hirakata, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, Hirakata, Japan
| |
Collapse
|
22
|
Kinoshita Y, Yoshizawa K, Yuri T, Tsubur A, Shikata N. Endocervical metastasis of pancreatic cancer: A rare case report of long-term survival. Human Pathology: Case Reports 2016. [DOI: 10.1016/j.ehpc.2015.12.002] [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: 10/22/2022] Open
|
23
|
Yoshizawa K, Kissling GE, Johnson JA, Clayton NP, Flagler ND, Nyska A. Chemical-Induced Atrial Thrombosis in NTP Rodent Studies—Supplementary Data. Toxicol Pathol 2016. [DOI: 10.1080/725272397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - Grace E. Kissling
- Biostatistics Branch, National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, North Carolina, 27709, USA
| | | | | | | | | |
Collapse
|
24
|
Yoshizawa K, Yuki M, Kinoshita Y, Emoto Y, Yuri T, Elmore SA, Tsubura A. N-methyl-N-nitrosourea-induced schwannomas in male Sprague-Dawley rats with a literature review of inducible and spontaneous lesions. ACTA ACUST UNITED AC 2016; 68:371-9. [PMID: 27233116 DOI: 10.1016/j.etp.2016.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 05/03/2016] [Accepted: 05/10/2016] [Indexed: 12/01/2022]
Abstract
N-methyl-N-nitrosourea (MNU) possesses peripheral nervous system carcinogenic activity in rats and induces benign and malignant schwannomas in systemic organs. In this retrospective study, we compared the characteristics of various immunohistochemical markers in MNU-induced schwannomas in male Crj:CD(SD)IGS rats including: vimentin (Vim), S100, p75 nerve growth factor receptor (LNGFR), CD57, pancytokeratin (CK), myoglobin, desmin and α smooth muscle actin (SMA). Single intraperitoneal exposures of 50 or 75mg/kg MNU in male rats at the age of 4 weeks induced schwannomas in 43 surviving and terminated rats up to 30-weeks-old. The incidence rate of neoplastic lesions was 37% (16 of 43 rats). Benign schwannomas (mesentery, pancreas, thymus) and malignant schwannomas (subendocardium, cardiac intramural, thoracic cavity, abdominal cavity, prostate), occurred in nine and seven rats, respectively. All neoplastic lesions were moderately or strongly positive for Vim, S100 and LNGFR proteins. Benign tumors were weakly positive and malignant tumors strongly positive for Ki-67, suggesting a high active proliferation rate of Schwann cell precursors. All lesions were negative for CD57, CK, myoglobin, desmin and SMA. This data may provide useful immunohistochemical information for the investigation of schwannomas in rat chemical carcinogenicity studies.
Collapse
Affiliation(s)
- Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan.
| | - Michiko Yuki
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan; Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Medical Center, Fumizono 10-15, Moriguchi, Osaka 570-8507, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Susan A Elmore
- Cellular & Molecular Pathology Branch, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| |
Collapse
|
25
|
Kinoshita Y, Yoshizawa K, Emoto Y, Yuki M, Yuri T, Shikata N, Elmore SA, Tsubura A. A spontaneously occurring malignant ovarian Sertoli cell tumor in a young Sprague Dawley rat. J Toxicol Pathol 2016; 29:53-9. [PMID: 26989303 PMCID: PMC4766523 DOI: 10.1293/tox.2015-0057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 10/13/2015] [Indexed: 11/19/2022] Open
Abstract
Primary ovarian tumors are generally uncommon in rats used in toxicologic studies. A malignant Sertoli cell tumor was present in the ovary of a 19-week-old female Sprague Dawley rat. Macroscopically, the mass was white and firm, 10 × 13 × 17 mm in size, and located in the right ovary. Histopathologically, the mass was composed of nests of pleomorphic cells, which formed seminiferous-like tubules separated by a thin fibrovascular stroma. The tubules were lined by tumor cells, which had basally located nuclei and abundant eosinophilic and vacuolated cytoplasm. In some areas, the tumor cells were arranged in a retiform growth pattern, mimicking a rete testis/ovarii. Disseminated metastases to the surfaces of the mesentery, spleen and liver were also present. Immunohistochemically, many tumor cells were strongly positive for vimentin, estrogen receptor α and Ki 67. Some tumor cells were positive for pancytokeratin and inhibin α. These findings closely resemble those of an ovarian-derived human malignant Sertoli cell tumor. From our review of the literature, we believe this is the first report of a spontaneous malignant Sertoli cell tumor in the ovary of a young laboratory rat. This case might provide useful historical control information for rat toxicity studies.
Collapse
Affiliation(s)
- Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan; Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, Fumizono 10-15, Moriguchi, Osaka 570-8507, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Michiko Yuki
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Nobuaki Shikata
- Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, Fumizono 10-15, Moriguchi, Osaka 570-8507, Japan
| | - Susan A Elmore
- Cellular & Molecular Pathology Branch, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| |
Collapse
|
26
|
Yoshizawa K, Kinoshita Y, Emoto Y, Tsubura A. Spontaneously occurring lymphohematopoietic tumors in three young Sprague Dawley rats. ACTA ACUST UNITED AC 2016; 68:301-5. [PMID: 26830545 DOI: 10.1016/j.etp.2016.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 01/16/2016] [Accepted: 01/21/2016] [Indexed: 10/22/2022]
Abstract
To assess the toxicological and pharmacological effects of chemicals, it is important to know what kinds of neoplasms naturally occur in the early life of laboratory animals. In the present study, we identified three spontaneous hematopoietic tumors in three of 52 young female Sprague-Dawley rats used in a pharmacological study. These cases included two rats (Case 1 and 2) from a sesame oil-treated group and one rat (Case 3) from a chemical-treated group in the same single gavage study. Case 1 rapidly lost body weight at 13 weeks of age without any clinical signs and died. Round lymphoid tumor cells were found in the spleen, liver, bone marrow, and pancreas. The tumor cells were immunohistochemically positive for CD3 and PCNA, which is suggestive of malignant T-cell lymphoma. Cases 2 and 3 had rapid body weight loss at 14 and 16 weeks of age, respectively, exhibited severe anemia, hypolocomotion, and decreased body temperature, and were euthanized due to a poor prognosis based on severe clinical signs. Pleomorphic large tumor cells were found in the spleen, liver, bone marrow, lymph nodes, heart, kidneys, lung, pancreas, adrenal glands, pituitary gland, ovaries, Harderian gland, and/or eyes. The tumor cells were immunoreactive for CD34, lysozyme, and PCNA, which is suggestive of myeloid leukemia. These cases might provide useful historical control information for rat toxicity studies.
Collapse
Affiliation(s)
- Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan.
| | - Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan; Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, Fumizono 10-15, Moriguchi, Osaka 570-8507, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| |
Collapse
|
27
|
Yuki M, Yoshizawa K, Emoto Y, Yuri T, Kinoshita Y, Tsubura A, Kurokawa I. Cutaneous Epithelial Lesions Induced by N-Methyl-N-nitrosourea in Male Sprague-Dawley Rats: A Possible Animal Model for Human Keratoacanthoma. Anticancer Res 2016; 36:111-120. [PMID: 26722034] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A single intraperitoneal injection of 50 or 75 mg/kg N-methyl-N-nitrosourea in male Sprague-Dawley rats at 4 weeks of age, dose-dependently resulted in cutaneous epithelial cysts and tumors of pilosebaceous origin. Cysts were composed of epidermal cysts or mixed epidermal and inner root sheath hybrid cysts. The majority of induced tumors were keratoacanthomas. A few tumors were trichofolliculomas, trichoblastomas, pilomatricomas, or sebaceous adenomas. All tumors were benign pilosebaceous tumors. Keratoacanthomas were crater-shaped tumors with thick infoldings of epithelium containing keratohyalin granules (epidermal lip) that abruptly changed to epithelium containing trichohyalin granules. The morphological similarity and resemblance of keratin 1, 10, and 14 profiles, and p63 and β-catenin expression between mixed epidermal and inner root sheath hybrid cysts and keratoacanthomas suggests that hybrid cysts progressed to keratoacanthomas, and the cells from infundibular cells to inner root sheath cells of the pilar segment seem to be the origin of rat keratoacanthomas. Immunohistochemical localization of keratins 1, 10 and 14, p63, and β-catenin in trichofolliculoma, trichoblastoma, and pilomatricoma, as well as keratoacanthoma, may indicate tumor histogenesis.
Collapse
Affiliation(s)
- Michiko Yuki
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Ichiro Kurokawa
- Department of Dermatology, Meiwa Hospital, Nishinomiya, Hyogo, Japan
| |
Collapse
|
28
|
Emoto Y, Yoshizawa K, Kinoshita Y, Yuki M, Yuri T, Tsubura A. Susceptibility to N-methyl-N-nitrosourea-induced retinal degeneration in different rat strains. J Toxicol Pathol 2015; 29:67-71. [PMID: 26989305 PMCID: PMC4766522 DOI: 10.1293/tox.2015-0062] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/30/2015] [Indexed: 11/25/2022] Open
Abstract
To evaluate the potential role of genetic background in the susceptibility to retinal degeneration induced by N-methyl-N-nitrosourea (MNU), female rats of the Sprague-Dawley (SD), Long-Evans (LE) and Copenhagen (CH) strains were administered 50 mg/kg MNU or saline at 7 weeks of age. Retina morphology and morphometric analysis of all rats was performed 7 days after MNU administration. Atrophy of both the peripheral and central outer retina occurred in all rat strains exposed to MNU. Decreased photoreceptor cell ratio and increased retinal damage ratio were observed. The severities of the retinal atrophy were similar among all three rat strains. In conclusion, MNU-induced photoreceptor degeneration developed consistently in all three strains regardless of the absence (SD rats) or presence (LE and CH rats) of melanin in the retina, suggesting that genetic and melanin factors did not affect photoreceptor cell death after MNU.
Collapse
Affiliation(s)
- Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan; Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, 10-15 Fumizono, Moriguchi, Osaka 570-8506, Japan
| | - Michiko Yuki
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| |
Collapse
|
29
|
Yoshizawa K, Kawai K, Fujie M, Suzuki J, Ogawa Y, Yajima T, Yokomori J. Overall safety profile and effectiveness of tramadol hydrochloride/acetaminophen in patients with chronic noncancer pain in Japanese real-world practice. Curr Med Res Opin 2015; 31:2119-29. [PMID: 26359328 DOI: 10.1185/03007995.2015.1091975] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To evaluate the overall safety profile and clinical effectiveness of tramadol hydrochloride/acetaminophen (TA) combination tablets in Japanese patients with chronic noncancer pain unrelieved by non-opioid drugs for up to 12 weeks in real-world practice. RESEARCH DESIGN AND METHODS This survey was a multicenter, prospective, longitudinal registry on the use of TA as a newly initiated pain treatment for chronic noncancer pain incurable by non-opioid analgesics that was conducted under the Good Post Marketing Study Practice regulation controlled by the Japan Ministry of Health, Labor and Welfare. Collected data included socio-demographics, treatment information, incidence of adverse drug reactions (ADRs), numerical rating scale for intensity of pain, EuroQol-5D (EQ-5D) scale, and physician's global impression (PGI) during the 12 week observation period. RESULTS A total of 1316 patients were registered. ADRs were reported in 259 patients (20.5%); most events were nonserious (99.4%), including nausea (n = 87 [6.9%]), constipation (n = 63 [5.0%]), dizziness and somnolence (n = 29 [2.3%] each), and vomiting (n = 21 [1.7%]). No event related to drug dependence or respiratory depression was reported. In addition, 82.8% of patients showed acceptable effectiveness based on PGI at Week 4. Numerical rating scale for intensity of pain and EQ-5D utility scores were improved by -2.7 (SD 2.3) and 0.16 (SD 0.20) at Week 4, respectively, and the improvement was maintained until Week 12. CONCLUSION This is a first report to evaluate the risk-benefit profile of TA in Japanese real-world practice using large size registry data. It is suggested that the favorable risk-benefit balance of TA was confirmed for patients with chronic noncancer pain unrelieved by non-opioid drugs in real-world practice. Limitations of this study were those inherent to open-label and non-interventional study designs. TRIAL REGISTRATION This registry survey is registered at umin.ac.jp (identifier: UMIN000015901).
Collapse
Affiliation(s)
- K Yoshizawa
- a a Medical Affairs Division, Janssen Pharmaceutical KK , Tokyo , Japan
| | - K Kawai
- a a Medical Affairs Division, Janssen Pharmaceutical KK , Tokyo , Japan
- b b Sendai Pain Clinic Center, Medical Corporation Kanteikai , Sendai , Japan
| | - M Fujie
- c c Research and Development Division, Janssen Pharmaceutical KK , Tokyo , Japan
| | - J Suzuki
- c c Research and Development Division, Janssen Pharmaceutical KK , Tokyo , Japan
| | - Y Ogawa
- c c Research and Development Division, Janssen Pharmaceutical KK , Tokyo , Japan
| | - T Yajima
- c c Research and Development Division, Janssen Pharmaceutical KK , Tokyo , Japan
| | - J Yokomori
- c c Research and Development Division, Janssen Pharmaceutical KK , Tokyo , Japan
| |
Collapse
|
30
|
Emoto Y, Yoshizawa K, Kinoshita Y, Yuki M, Yuri T, Tsubura A. Green tea extract attenuates MNU-induced photoreceptor cell apoptosis via suppression of heme oxygenase-1. J Toxicol Pathol 2015; 29:61-5. [PMID: 26989304 PMCID: PMC4766529 DOI: 10.1293/tox.2015-0052] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 09/16/2015] [Indexed: 12/12/2022] Open
Abstract
The effects of green tea extract (GTE) on N-methyl-N-nitrosourea (MNU)-induced photoreceptor cell apoptosis were examined, and the possible mechanisms of action of GTE were assessed. Alterations in the retinal morphological architecture were determined by hematoxylin-eosin staining, vimentin immunoreactivity, and photoreceptor cell apoptosis (TUNEL labeling). Expression of oxidant marker, heme oxygenase (HO)-1, mRNA levels in outer nuclear cells was assessed by laser capture microdissection (LCM). Sprague-Dawley rats were given 40 mg/kg MNU at 7 weeks of age in the absence and presence of 250 mg/kg GTE treatment (once daily from 3 days prior to MNU for a maximum 10 days). Although photoreceptor cell degeneration began 24 hr after MNU, the morphological effects of GTE at the time point were not definitive. However, GTE lowered TUNEL labeling and HO-1 mRNA expression. At 7 days after MNU, photoreceptor damage was attenuated by GTE treatment. Therefore, the ability of GTE to reduce MNU-induced photoreceptor cell apoptosis may be due to its antioxidant properties.
Collapse
Affiliation(s)
- Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Michiko Yuki
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| |
Collapse
|
31
|
Kinoshita Y, Yoshizawa K, Hamazaki K, Emoto Y, Yuri T, Yuki M, Kawashima H, Shikata N, Tsubura A. Dietary effects of mead acid on N-methyl- N-nitrosourea-induced mammary cancers in female Sprague-Dawley rats. Biomed Rep 2015; 4:33-39. [PMID: 26870330 DOI: 10.3892/br.2015.530] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 09/30/2015] [Indexed: 12/25/2022] Open
Abstract
The effect of mead acid (MA; 5,8,11-eicosatrienoic acid) on the suppression of the development and growth of N-methyl-N-nitrosourea (MNU)-induced mammary cancer in female Sprague-Dawley rats was examined. The MA diet (2.4% MA) or control (CTR) diet (0% MA) was started at 6 weeks of age, MNU was injected intraperitoneally at 7 weeks of age, and the rats were maintained on the respective diets for the whole experimental period (until 19 weeks of age). All induced mammary tumors were luminal A subtype carcinomas (estrogen and progesterone receptor positive and HER2/neu negative). The MA diet significantly suppressed the initiation and promotion phases of mammary carcinogenesis; MA suppressed the development (incidence, 61.5 vs. 100%; multiplicity, 2.1 vs. 4.5) and the growth (final tumor weight, 427.1 vs. 1,796.3 mg) of mammary cancers by suppressing cell proliferation, but not by accelerating cell death. There were evident changes in the major fatty acid composition of n-3, n-6, and n-9 fatty acids in the serum of the MA diet group; there was a significant increase in MA and significant decreases in oleic acid (OA), linoleic acid, arachidonic acid and docosahexaenoic acid. In non-tumorous mammary tissue, there was a significant increase in MA and a significant decrease in OA in the MA diet group. The n-6/n-3 ratios in serum and mammary tissue of the MA diet group were significantly decreased. The MA diet suppressed MNU-induced luminal A mammary cancer by lowering cancer cell proliferation. Therefore, MA may be a chemopreventive and chemotherapeutic agent. In addition to hormone therapy, MA supplementation may be a beneficial chemotherapeutic agent for the luminal A subtype of breast cancer.
Collapse
Affiliation(s)
- Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka 537-1010, Japan; Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, Moriguchi, Osaka 570-8507, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka 537-1010, Japan
| | - Kei Hamazaki
- Department of Public Health, Faculty of Medicine, University of Toyama, Sugitani, Toyama 930-0194, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka 537-1010, Japan
| | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka 537-1010, Japan
| | - Michiko Yuki
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka 537-1010, Japan
| | - Hiroshi Kawashima
- Institute for Health Care Science, Suntory Wellness Ltd., Seika-cho, Kyoto 619-0284, Japan
| | - Nobuaki Shikata
- Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, Moriguchi, Osaka 570-8507, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka 537-1010, Japan
| |
Collapse
|
32
|
Moroi A, Saida Y, Tutui T, Hotta A, Iguchi R, Ikawa H, Kosaka A, Higuchi M, Yoshizawa K, Ueki K. Comparison between in skeletal stability after sagittal split ramus osteotomy with and without extraction of third molar in the mandibular prognathism patients. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.249] [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: 11/28/2022]
|
33
|
Ueki K, Moroi A, Iguchi R, Kosaka A, Ikawa H, Hotta A, Tsutsui T, Saida Y, Yoshizawa K. Changes in CT (computed tomography) value of mandibular ramus bone and fixation screws after sagittal split ramus osteotomy. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.357] [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: 10/22/2022]
|
34
|
Emoto Y, Yoshizawa K, Shikata N, Tsubura A, Nagasaki Y. Autopsy report for chemical burns from cresol solution. ACTA ACUST UNITED AC 2015; 68:99-102. [PMID: 26404918 DOI: 10.1016/j.etp.2015.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 08/06/2015] [Accepted: 09/11/2015] [Indexed: 11/18/2022]
Abstract
Cresol, which is used as a disinfectant and insecticide, has erosive effects on epidermal and epithelial tissues in the body. Oral exposure causes gastrointestinal corrosive injuries as a direct chemical burn. We report herein a case of suicidal poisoning by ingestion of cresol solution. An octogenarian man with depression was found dead approximately 14 h after exposure to less than 500 mL of saponated cresol solution. Macroscopically, corrosive lesions such as red-to-brown-colored epithelium and edematous thickening of walls were seen in the skin, mouth, oral cavity, esophagus, and stomach. Histopathologically, coagulative necrosis and vascular dilatation were detected from mucosal to muscular layers in the esophagus, stomach, and duodenum. Congestive edema of the lungs, edematous changes in the brain, and proximal tubular necrosis of the kidneys were seen, suggesting acute circulatory disturbance due to shock. This human case offers valuable information on the direct irritation and shock induced by systemic exposure to corrosive substances.
Collapse
Affiliation(s)
- Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan; Medical Examiner's Office of Hyogo Prefecture, 2-1-31 Arata-machi, Hyogo-ku, Kobe, Hyogo 650-0017, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan.
| | - Nobuaki Shikata
- Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, Fumizono 10-15, Moriguchi, Osaka 570-8507, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Yasushi Nagasaki
- Medical Examiner's Office of Hyogo Prefecture, 2-1-31 Arata-machi, Hyogo-ku, Kobe, Hyogo 650-0017, Japan
| |
Collapse
|
35
|
Emoto Y, Yoshizawa K, Shikata N, Tsubura A, Nagasaki Y. Autopsy results of a case of ingestion of sodium hydroxide solution. J Toxicol Pathol 2015; 29:45-7. [PMID: 26989301 PMCID: PMC4766079 DOI: 10.1293/tox.2015-0049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 08/29/2015] [Indexed: 11/19/2022] Open
Abstract
Sodium hydroxide is a strongly corrosive alkali. We describe herein a case of suicide by ingestion of sodium hydroxide. A man in his 80s was found dead with a mug and a bottle of caustic soda. Macroscopically, liquefaction and/or disappearance of esophagus, trachea and lung tissue and a grayish discoloration of the mucosa of the stomach were seen along with blackish brown coloration of the skin, mouth, and oral cavity. The contents of the gastrointestinal tract showed a pH level of 7-8 on pH indicator strips. Histopathologically, liquefactive necrosis of remnant lung tissue and the stomach were seen. As biological reactions such as vasodilatation and inflammation were not detected in these organs, only a short number of hours must have passed between ingestion and death. This human case provides valuable information concerning the direct irritation induced by systemic exposure to corrosive substances.
Collapse
Affiliation(s)
- Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan; Medical Examiner's Office of Hyogo Prefecture, 2-1-31 Arata-machi, Hyogo-ku, Kobe, Hyogo 650-0017, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Nobuaki Shikata
- Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, 10-15 Fumizono, Moriguchi, Osaka 570-8507, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Yasushi Nagasaki
- Medical Examiner's Office of Hyogo Prefecture, 2-1-31 Arata-machi, Hyogo-ku, Kobe, Hyogo 650-0017, Japan
| |
Collapse
|
36
|
Kinoshita Y, Yuri T, Yoshizawa K, Takasu K, Emoto Y, Tsubura A, Shikata N. Romanowsky staining using liquid-based cytology: A pilot study using Cytolyt®/HESPANDER®processing solution for ThinPrep®preparations. Diagn Cytopathol 2015; 43:960-5. [DOI: 10.1002/dc.23368] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Revised: 06/25/2015] [Accepted: 09/02/2015] [Indexed: 12/26/2022]
Affiliation(s)
- Yuichi Kinoshita
- Department of Pathology II; Kansai Medical University; Hirakata Osaka Japan
- Division of Diagnostic Cytopathology and Histopathology; Kansai Medical University Takii Hospital; Moriguchi Osaka Japan
| | - Takashi Yuri
- Department of Pathology II; Kansai Medical University; Hirakata Osaka Japan
| | | | - Kosho Takasu
- Division of Surgical Pathology; Hyogo Prefectural Amagasaki Hospital; Amagasaki Hyogo Japan
| | - Yuko Emoto
- Department of Pathology II; Kansai Medical University; Hirakata Osaka Japan
| | - Airo Tsubura
- Department of Pathology II; Kansai Medical University; Hirakata Osaka Japan
| | - Nobuaki Shikata
- Division of Diagnostic Cytopathology and Histopathology; Kansai Medical University Takii Hospital; Moriguchi Osaka Japan
| |
Collapse
|
37
|
Murata M, Hasegawa K, Kanazawa I, Shirakura K, Kochi K, Shimazu R, Kimura T, Yoshida K, Abe T, Kurita K, Yoshizawa K, Tamaoka A, Nakano I, Shimizu T, Hattori N, Mizusawa H, Kuno S, Yokochi F, Hirabayashi K, Horiuchi E, Kawashima N, Koike R, Ishikawa A, Kuriyama M, Mizoguchi K, Mitake S, Washimi Y, Tatsuoka Y, Fujimura H, Toda K, Kondo T, Nakashima K, Nomoto M, Uozumi T, Sato A, Matsuo H, Tsuruta K. Randomized placebo‐controlled trial of zonisamide in patients with Parkinson's disease. ACTA ACUST UNITED AC 2015. [DOI: 10.1111/ncn3.12026] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Miho Murata
- Department of Neurology National Center Hospital National Center of Neurology and Psychiatry Tokyo Japan
| | - Kazuko Hasegawa
- Department of Neurology Sagamihara National Hospital SagamiharaTokyo Japan
| | - Ichiro Kanazawa
- International University of Health and Welfare Graduate School Tokyo Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Ueki K, Moroi A, Iguchi R, Kosaka A, Ikawa H, Yoshizawa K. Changes in the computed tomography (pixel) value of mandibular ramus bone and fixation screws after sagittal split ramus osteotomy. Int J Oral Maxillofac Surg 2015; 44:1337-45. [PMID: 26139563 DOI: 10.1016/j.ijom.2015.06.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 06/05/2015] [Accepted: 06/12/2015] [Indexed: 10/23/2022]
Abstract
The purpose of this retrospective study was to evaluate the changes in computed tomography (CT) values of ramus bone and screws after sagittal split ramus osteotomy (SSRO) setback surgery. The subjects were 64 patients (128 sides) who underwent bilateral SSRO setback surgery. They were divided into six groups according to the fixation plate type used and the use or not of self-setting α-tricalcium phosphate (Biopex): group 1: titanium plate and screws; group 2: titanium plate and screws with Biopex; group 3: poly-l-lactic acid (PLLA) plate and screws; group 4: PLLA plate and screws with Biopex; group 5: uncalcined and unsintered hydroxyapatite particles and poly-l-lactic acid (uHA/PLLA) plate and screws; group 6: PLLA/uHA plate and screws with Biopex. CT values (pixel values) of the lateral cortex, medial cortex, osteotomy site, and screws were measured preoperatively, immediately after surgery, and 1 year postoperatively using horizontal CT images at the mandibular foramen taken parallel to the Frankfort horizontal plane. There were significant differences in the time-course change of pixel values for the lateral cortex (P<0.0001) and the osteotomy site (P<0.0001) among the six groups. This study suggests that the fixation plate type and use of bone alternative material may affect bone quality during the process of bone healing after SSRO.
Collapse
Affiliation(s)
- K Ueki
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, Japan.
| | - A Moroi
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, Japan
| | - R Iguchi
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, Japan
| | - A Kosaka
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, Japan
| | - H Ikawa
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, Japan
| | - K Yoshizawa
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo-shi, Yamanashi, Japan
| |
Collapse
|
39
|
Abstract
BACKGROUND A sclerosed hemangioma of the liver, an extremely rare type of benign hepatic tumor, was found at autopsy. CASE REPORT An 81-year-old Japanese man was admitted to our hospital for surgical resection of squamous cell carcinoma of the skin in his left forearm. At admission, serological tests for hepatitis B surface antigen and hepatitis C antibody were negative with no evidence of cirrhosis. At 2, 3, and 5 months after the removal of the forearm tumor, skin grafting was performed because of unhealed skin ulceration. Although anti-bacterial drugs were prescribed, the patient died after the 3rd skin graft (5 months after the surgery) because of pneumonia. During the treatment course, the patient was diagnosed as having multiple liver masses suspected to be cysts of the liver based on non-contrasted computed tomography results. Autopsy revealed a sclerosed hemangioma occupying the entire left lobe accompanied by multiple small cavernous hemangiomas in the right lobe of the liver. CONCLUSIONS Sclerosed hemangioma, a rare benign disease, occurred in association with degeneration and sclerosis of cavernous hemangiomas of the liver. The VEGF pathway may be involved in the genesis of cavernous and sclerosed hemangioma of the liver.
Collapse
Affiliation(s)
- Michiko Yuki
- Department of Pathology II, Kansai Medical University, hirakata, Osaka, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| |
Collapse
|
40
|
Yuki M, Emoto Y, Kinoshita Y, Yoshizawa K, Yuri T, Tsubura A. Hepatosplenomegaly Associated with Transient Abnormal Myelopoiesis in Down Syndrome: An Autopsy Case of a Stillborn Fetus. Case Rep Oncol 2015. [DOI: 10.1159/000434624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A 38-year-old primiparous mother (gravida<b> </b>1, para 0) at 27 weeks and 6 days' gestation reported that fetal movements had been absent for 6 days. All serological markers for infection were negative. Chorionic villus sampling at stillbirth delivery revealed trisomy 21 (47, XX, +21), indicative of Down syndrome. The macerated baby was female and weighed 1,290 g. There was no evidence of hydrops fetalis. Proliferating blast cells expressing megakaryoblastic/megakaryocytic antigen CD61 were mainly seen within the vessels, and some cells infiltrated outside of the vessels in almost all organs. Vessels of the umbilical cord and chorionic villi were filled with proliferating blast cells, but the blast cells were not apparent in the bone marrow. The diagnosis of transient abnormal myelopoiesis in Down syndrome was made. Hepatomegaly (64.5 g) was due to congestion and infiltration of CD61-positive blast cells within the vascular lumina and expanding outside the lumina accompanied by fibrotic change. The cause of death was attributed to liver insufficiency caused by liver fibrosis. An umbilical cord and chorionic villi examination may be helpful in the diagnosis of transient abnormal myelopoiesis when post-mortem examination is not permitted.
Collapse
|
41
|
Moroki T, Sasaki T, Yoshizawa K, Doi T. A spontaneously occurring malignant pituicytoma in a male sprague dawley rat. J Toxicol Pathol 2015; 28:171-6. [PMID: 26441479 PMCID: PMC4588211 DOI: 10.1293/tox.2015-0012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 04/28/2015] [Indexed: 12/03/2022] Open
Abstract
Pituicytoma is an extremely rare neoplasm derived from pituicytes, which are glial cells
in the posterior lobe of the pituitary gland. A malignant pituicytoma was found in the
intracranial cavity of a 55-week-old male Sprague-Dawley rat. Macroscopically, the tumor
was located on the sphenoid bone and involved the pituitary gland. The tumor was composed
of sheets of fusiform cells with spindle- or pleomorphic-shaped nuclei and abundant
eosinophilic cytoplasms. The cells were arranged in a whirling or irregular growth
pattern. Some tumor cells were bizarre multinucleated giant cells with cytoplasmic
eosinophilic hyaline droplets. Many tumor cells were strongly positive for vimentin and
glial fibrillary acidic protein, and some cells were positive for ED-1 and S-100. These
findings closely resembled those of a giant cell glioblastoma derived from the pituitary
gland, suggesting anaplastic pituicytoma. From our review of the literature, we believe
this is the first report of a spontaneous malignant pituicytoma in a rodent.
Collapse
Affiliation(s)
- Takayasu Moroki
- Department of Toxicological Research, Research Laboratories, Maruho Co., Ltd., 93 Awata-cho, Chudoji, Shimogyo-ku, Kyoto, Kyoto 600-8815, Japan
| | - Tomo Sasaki
- Department of Toxicological Research, Research Laboratories, Maruho Co., Ltd., 93 Awata-cho, Chudoji, Shimogyo-ku, Kyoto, Kyoto 600-8815, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Takaaki Doi
- Department of Toxicological Research, Research Laboratories, Maruho Co., Ltd., 93 Awata-cho, Chudoji, Shimogyo-ku, Kyoto, Kyoto 600-8815, Japan
| |
Collapse
|
42
|
Abstract
Patient: Female, 30 Final Diagnosis: Leiomyomatosis Symptoms: Abnormal finding in abdominal-pelvic CT scan Medication: — Clinical Procedure: Surgical tumorectomy Specialty: Oncology
Collapse
Affiliation(s)
- Takashi Yuri
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Michiko Yuki
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| |
Collapse
|
43
|
Moroi A, Ishihara Y, Sotobori M, Iguchi R, Kosaka A, Ikawa H, Yoshizawa K, Marukawa K, Ueki K. Changes in occlusal function after orthognathic surgery in mandibular prognathism with and without asymmetry. Int J Oral Maxillofac Surg 2015; 44:971-6. [PMID: 25864000 DOI: 10.1016/j.ijom.2015.03.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/18/2015] [Accepted: 03/24/2015] [Indexed: 11/27/2022]
Abstract
This study aimed to evaluate the postoperative changes in masticatory function in patients with jaw deformities with or without asymmetry treated by orthognathic surgery. Thirty female patients who underwent a Le Fort I osteotomy with sagittal split ramus osteotomy (SSRO) were enrolled. The patients were divided into symmetry and asymmetry groups. The bite force, occlusal contact area, and bite force balance were measured before and at 1, 3, and 6 months and 1 year after surgery; these measurements were compared statistically within and between the two groups. In the symmetry group, there was a significant difference in the preoperative bite force and the 1 month postoperative bite force (P=0.0033). In the asymmetry group, the bite force before surgery was significantly different from that at 1 month (P=0.0375) and at 1 year (P=0.0353) after surgery. Significant differences in the bite force were also observed between the following time points: 1 month and 1 year (P=0.0003), 3 months and 1 year (P=0.0034), and 1 month and 6 months (P=0.0486). The occlusal contact area, bite force, and occlusal balance tended to change after Le Fort I osteotomy with SSRO, with a significantly improved bite force in patients with asymmetry before surgery.
Collapse
Affiliation(s)
- A Moroi
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan.
| | - Y Ishihara
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - M Sotobori
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - R Iguchi
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - A Kosaka
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - H Ikawa
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - K Yoshizawa
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - K Marukawa
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| | - K Ueki
- Department of Oral and Maxillofacial Surgery, Division of Medicine, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
| |
Collapse
|
44
|
Keenan CM, Baker J, Bradley A, Goodman DG, Harada T, Herbert R, Kaufmann W, Kellner R, Mahler B, Meseck E, Nolte T, Rittinghausen S, Vahle J, Yoshizawa K. International Harmonization of Nomenclature and Diagnostic Criteria (INHAND): Progress to Date and Future Plans. Toxicol Pathol 2014; 43:730-2. [PMID: 25530274 DOI: 10.1177/0192623314560031] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The International Harmonization of Nomenclature and Diagnostic Criteria for Lesions in Rats and Mice proposal (INHAND) has been operational since 2005. A Global Editorial Steering Committee manages the overall objectives of the project, and the development of harmonized terminology for each organ system is the responsibility of the Organ Working Groups, drawing upon experts from North America, Europe, and Japan. Great progress has been made with 9 systems published to date--respiratory, hepatobiliary, urinary, central/peripheral nervous systems, male reproductive and mammary, zymbals, clitoral, and preputial glands in Toxicologic Pathology and the integument and soft tissue and female reproductive in the Journal of Toxicologic Pathology as supplements and on a Web site--www.goReni.org. INHAND nomenclature guides offer diagnostic criteria and guidelines for recording lesions observed in rodent toxicity and carcinogenicity studies. The guides provide representative photomicrographs of morphologic changes, information regarding pathogenesis, and key references. The purpose of this brief communication is to provide an update on the progress of INHAND.
Collapse
Affiliation(s)
- C M Keenan
- C. M. Keenan ToxPath Consulting, Doylestown, Pennsylvania, USA
| | - J Baker
- Charles River Pathology Associates, Frederick, Maryland, USA
| | - A Bradley
- Charles River Laboratories, Tranent, Scotland, UK
| | - D G Goodman
- Independent Consultant, Potomac, Maryland, USA
| | - T Harada
- The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
| | - R Herbert
- NIEHS, Research Triangle Park, North Carolina, USA
| | | | | | - B Mahler
- NIEHS, Research Triangle Park, North Carolina, USA
| | - E Meseck
- Novartis Institute for Biomedical Research, East Hanover, New Jersey, USA
| | - T Nolte
- Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riss, Germany
| | | | - J Vahle
- Eli Lilly & Company, Indianapolis, Indiana
| | - K Yoshizawa
- Kansai Medical University, Hirakata, Osaka, Japan
| |
Collapse
|
45
|
Yamamoto T, Yoshizawa K, Kubo SI, Emoto Y, Hara K, Waters B, Umehara T, Murase T, Ikematsu K. Autopsy report for a caffeine intoxication case and review of the current literature. J Toxicol Pathol 2014; 28:33-6. [PMID: 26023259 PMCID: PMC4337497 DOI: 10.1293/tox.2014-0044] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 11/08/2014] [Indexed: 12/01/2022] Open
Abstract
Caffeine (1,3,7-trimethylxanthine) is a popular mild central nervous system stimulant found in the leaves, seeds and fruits of various plants and in foodstuffs such as coffee, tea, and chocolate, among others. Caffeine is widely used and is not associated with severe side effects when consumed at relatively low doses. Although rarely observed, overdoses can occur. However, only a few fatal caffeine intoxication cases have been reported in the literature. Herein, we report the pathological examination results and information on caffeine concentrations in the blood, urine and main organs in a fatal caffeine intoxication case. Even though high caffeine concentrations were found in the systemic organs, no caffeine-related pathological changes were detected.
Collapse
Affiliation(s)
- Takuma Yamamoto
- Division of Forensic Pathology and Science, Unit of Social Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Shin-Ichi Kubo
- Department of Forensic Medicine, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Kenji Hara
- Department of Forensic Medicine, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Brian Waters
- Department of Forensic Medicine, Faculty of Medicine, Fukuoka University, 7-45-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Takahiro Umehara
- Division of Forensic Pathology and Science, Unit of Social Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Takehiko Murase
- Division of Forensic Pathology and Science, Unit of Social Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Kazuya Ikematsu
- Division of Forensic Pathology and Science, Unit of Social Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| |
Collapse
|
46
|
Kinoshita Y, Harada H, Kobayashi TK, Yoshizawa K, Yuri T, Takasu K, Tsubura A, Shikata N. Multifocal adenomatous oncocytic hyperplasia of the parotid gland. Case Rep Oncol 2014; 7:819-24. [PMID: 25580104 PMCID: PMC4280445 DOI: 10.1159/000370146] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Multifocal adenomatous oncocytic hyperplasia (MAOH) is a non-neoplastic lesion that is classified as oncocytosis. MAOH is a rare entity of the parotid gland and accounts for approximately 0.1% of salivary gland lesions. Here, we report a case of MAOH of the parotid gland. The patient was a 71-year-old woman who presented with discomfort at the left side of her neck. Fine-needle aspiration cytology of the parotid gland revealed a loose sheet-like cluster of round to polygonal cells with granular cytoplasm against a hemorrhagic background. The cells had round to oval, centrally located nuclei with granular chromatin and without distinct nucleoli. Histologically, the lesion was formed of many variable-sized nodules, comprising oncocyte-like cells with small round nuclei and eosinophilic granular cytoplasm that was positive for mitochondrial antibodies. The diagnosis of MAOH is difficult to make by cytology alone, because the findings overlap with those of other oncocytic lesions. In particular, the cytological findings of MAOH have not been sufficiently reported to date. A correlation of cytology and histology was expected.
Collapse
Affiliation(s)
- Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, Hirakata, Japan ; Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, Moriguchi, Japan
| | - Hiroshi Harada
- Division of Surgical Pathology, Seichoukai Fuchu Hospital, Izumi, Japan
| | - Tadao K Kobayashi
- Cancer Education and Research Center, Osaka University Graduate School of Medicine and Health Science, Osaka, Japan
| | | | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, Hirakata, Japan
| | - Kosho Takasu
- Division of Surgical Pathology, Hyogo Prefectural Amagasaki Hospital, Amagasaki, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, Hirakata, Japan
| | - Nobuaki Shikata
- Division of Diagnostic Cytopathology and Histopathology, Kansai Medical University Takii Hospital, Moriguchi, Japan
| |
Collapse
|
47
|
Keenan CM, Baker JF, Bradley AE, Goodman DG, Harada T, Herbert R, Kaufmann W, Kellner R, Mahler B, Meseck E, Nolte T, Rittinghausen S, Vahle J, Yoshizawa K. International Harmonization of Nomenclature and Diagnostic Criteria (INHAND) progress to date and future plans. J Toxicol Pathol 2014; 28:51-3. [PMID: 26023262 PMCID: PMC4337500 DOI: 10.1293/tox.2014-0049] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 10/28/2014] [Indexed: 12/02/2022] Open
Abstract
The INHAND Proposal (International Harmonization of Nomenclature and Diagnostic Criteria for Lesions in Rats and Mice) has been operational since 2005. A Global Editorial Steering Committee (GESC) manages the overall objectives of the project and the development of harmonized terminology for each organ system is the responsibility of the Organ Working Groups (OWG), drawing upon experts from North America, Europe and Japan.Great progress has been made with 9 systems published to date – Respiratory, Hepatobiliary, Urinary, Central/Peripheral Nervous Systems, Male Reproductive and Mammary, Zymbals, Clitoral and Preputial Glands in Toxicologic Pathology and the Integument and Soft Tissue and Female Reproductive System in the Journal of Toxicologic Pathology as supplements and on a web site – www.goreni.org. INHAND nomenclature guides offer diagnostic criteria and guidelines for recording lesions observed in rodent toxicity and carcinogenicity studies. The guides provide representative photo-micrographs of morphologic changes, information regarding pathogenesis, and key references. During 2012, INHAND GESC representatives attended meetings with representatives of the FDA Center for Drug Evaluation and Research (CDER), Clinical Data Interchange Standards Consortium (CDISC), and the National Cancer Institute (NCI) Enterprise Vocabulary Services (EVS) to begin incorporation of INHAND terminology as preferred terminology for SEND (Standard for Exchange of Nonclinical Data) submissions to the FDA. The interest in utilizing the INHAND nomenclature, based on input from industry and government toxicologists as well as information technology specialists, suggests that there will be wide acceptance of this nomenclature. The purpose of this publication is to provide an update on the progress of INHAND.
Collapse
Affiliation(s)
| | | | | | | | - Takanori Harada
- The Institute of Environmental Toxicology, Joso-shi, Ibaraki, Japan
| | | | | | | | | | - Emily Meseck
- Novartis Institute for Biomedical Research, East Hanover, NJ, USA
| | - Thomas Nolte
- Boeringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riss, Germany
| | | | - John Vahle
- Eli Lilly & Company, Indianapolis, IN, USA
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, Hirakata, Osaka, Japan
| |
Collapse
|
48
|
Misof B, Liu S, Meusemann K, Peters RS, Donath A, Mayer C, Frandsen PB, Ware J, Flouri T, Beutel RG, Niehuis O, Petersen M, Izquierdo-Carrasco F, Wappler T, Rust J, Aberer AJ, Aspock U, Aspock H, Bartel D, Blanke A, Berger S, Bohm A, Buckley TR, Calcott B, Chen J, Friedrich F, Fukui M, Fujita M, Greve C, Grobe P, Gu S, Huang Y, Jermiin LS, Kawahara AY, Krogmann L, Kubiak M, Lanfear R, Letsch H, Li Y, Li Z, Li J, Lu H, Machida R, Mashimo Y, Kapli P, McKenna DD, Meng G, Nakagaki Y, Navarrete-Heredia JL, Ott M, Ou Y, Pass G, Podsiadlowski L, Pohl H, von Reumont BM, Schutte K, Sekiya K, Shimizu S, Slipinski A, Stamatakis A, Song W, Su X, Szucsich NU, Tan M, Tan X, Tang M, Tang J, Timelthaler G, Tomizuka S, Trautwein M, Tong X, Uchifune T, Walzl MG, Wiegmann BM, Wilbrandt J, Wipfler B, Wong TKF, Wu Q, Wu G, Xie Y, Yang S, Yang Q, Yeates DK, Yoshizawa K, Zhang Q, Zhang R, Zhang W, Zhang Y, Zhao J, Zhou C, Zhou L, Ziesmann T, Zou S, Li Y, Xu X, Zhang Y, Yang H, Wang J, Wang J, Kjer KM, Zhou X. Phylogenomics resolves the timing and pattern of insect evolution. Science 2014; 346:763-7. [DOI: 10.1126/science.1257570] [Citation(s) in RCA: 1672] [Impact Index Per Article: 167.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
49
|
Kinoshita Y, Yoshizawa K, Emoto Y, Yuki M, Yuri T, Shikata N, Tsubura A. Similarity of GATA-3 Expression between Rat and Human Mammary Glands. J Toxicol Pathol 2014; 27:159-62. [PMID: 25352719 PMCID: PMC4110942 DOI: 10.1293/tox.2014-0008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 04/10/2014] [Indexed: 11/19/2022] Open
Abstract
The GATA family members are zinc finger transcription factors involved in cell differentiation and proliferation. In particular, GATA-3 is necessary for mammary gland maturation and is a useful marker in the characterization of mammary carcinoma in humans. The expression of GATA-3 protein in normal mammary glands, fibroadenomas and carcinomas was immunohistochemically compared in female rats and humans. In normal mammary glands of rats and humans, scattered luminal cells in the acini and whole ductal epithelial cells were positive for GATA-3 in the nuclei. No positive cells were detected in rat or human fibroadenomas. In rat and human mammary carcinomas, the nuclei of proliferating luminal-derived cancer cells expressed GATA-3. Therefore, GATA-3 protein is a candidate marker for mammary carcinoma in rats as well as humans.
Collapse
Affiliation(s)
- Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan ; Division of Pathology, Kansai Medical University Takii Hospital, 10-15 Fumizono, Moriguchi, Osaka 570-8507, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Michiko Yuki
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Nobuaki Shikata
- Division of Pathology, Kansai Medical University Takii Hospital, 10-15 Fumizono, Moriguchi, Osaka 570-8507, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| |
Collapse
|
50
|
Emoto Y, Yoshizawa K, Hamazaki K, Kinoshita Y, Yuki M, Yuri T, Kawashima H, Tsubura A. Mead acid supplementation does not rescue rats from cataract and retinal degeneration induced by N-methyl-N-nitrosourea. J Toxicol Pathol 2014; 28:11-20. [PMID: 26023256 PMCID: PMC4337494 DOI: 10.1293/tox.2014-0036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 08/26/2014] [Indexed: 01/12/2023] Open
Abstract
Fatty acids and their derivatives play a role in the response to ocular disease. Our current study investigated the effects of dietary mead acid (MA, 5,8,11-eicosatrienoic acid) supplementation on N-methyl-N-nitrosourea (MNU)-induced cataract and retinal degeneration in Sprague-Dawley rats. Experiment 1 was designed to inhibit cataract formation, with the dams fed a 2.4% MA or basal (<0.01% MA) diet during lactational periods. On postnatal day 7, male pups received a single intraperitoneal (ip) injection of 50 mg/kg MNU or vehicle. Lens opacity and morphology were examined 7 and 14 days after the MNU injection. Experiment 2 was designed to inhibit retinal degeneration and was performed with female postweaning rats. In this experiment, dams were fed the 2.4% MA or basal diet during the lactational periods. Thereafter, the female pups were continuously fed the same diets during their postweaning periods. On postnatal day 21 (at weaning), pups received a single ip injection of 50 mg/kg MNU. Retinal morphology was examined 7 days after the MNU injection. In experiment 3, six-week-old female rats were fed the 2.4% MA or basal diet starting at one week before the MNU injection and were then continuously fed the same diets until sacrifice. Rats at 7 weeks of age were given a single ip injection of 40 mg/kg MNU, and the retina was then examined morphologically one week after the MNU injection. In experiment 1, mature cataract was found in all of the MNU-treated groups, with or without MA supplementation. In experiments 2 and 3, atrophy of both the peripheral and central outer retina occurred in all rats exposed to MNU, with or without MA supplementation, respectively. The severities of the cataracts and retinal atrophy in the rats were similar regardless of MA supplementation. Dietary mead acid, which is used as a substitute in essential fatty acid deficiency in the body, does not modify MNU-induced cataract and retinal degeneration in rat models.
Collapse
Affiliation(s)
- Yuko Emoto
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Katsuhiko Yoshizawa
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Kei Hamazaki
- Department of Public Health, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
| | - Yuichi Kinoshita
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan. ; Division of Pathology, Kansai Medical University Takii Hospital, 10-15 Fumizono, Moriguchi, Osaka 570-8507, Japan
| | - Michiko Yuki
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Takashi Yuri
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| | - Hiroshi Kawashima
- Institute for Health Care Science, Suntory Wellness Ltd., 1-1-1 Wakayamadai, Shimamoto, Osaka 618-8503, Japan
| | - Airo Tsubura
- Department of Pathology II, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka 573-1010, Japan
| |
Collapse
|