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Matsuzaki M, Mizushima S, Tsudzuki M, Maeda T, Sasanami T. Sperm replacement in sperm-storage tubules causes last-male sperm precedence in chickens. Br Poult Sci 2024; 65:97-104. [PMID: 38018517 DOI: 10.1080/00071668.2023.2287732] [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: 05/15/2023] [Accepted: 11/05/2023] [Indexed: 11/30/2023]
Abstract
1. This study elucidated the last-male sperm precedence (LMSP) mechanism in chickens by examining replacement in storage tubules (SSTs) after multiple artificial inseminations (AI) and the effects of seminal plasma (SP) and male breed on sperm replacement in SSTs.2. Hens were artificially inseminated with fluorescent dye-labelled spermatozoa from White Leghorn (WL) chickens. Secondary AI was conducted 3 d later with sperm labelled with different nuclear fluorescent dye. Percentage of first and second inseminated sperm in SSTs and their logarithmic odds were calculated. The effect of SP on LMSP was examined using (1) Lake's solution-washed sperm before second insemination, and (2) SP injected continuously after first insemination. Effect of breed difference on sperm replacement was investigated using Barred Plymouth Rock (BP) sperm.3. Successive WL-sperm inseminations at three-day intervals caused > 70% stored sperm replacement in SSTs. Although SP removal from sperm from second insemination significantly decreased replacement, its intra-vaginal injection did not affect release. Secondary insemination using BP sperm significantly increased replacement.4. Sperm replacement is a major factor favouring LMSP in domestic chickens. Two fluorescent staining of sperm, and intra-vaginal multiple AI technique have enabled visualisation, differentiation, and quantification of multiple inseminated sperm stored in the SSTs.
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Affiliation(s)
- M Matsuzaki
- Program of Food and AgriLife Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima City, Japan
| | - S Mizushima
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - M Tsudzuki
- Program of Food and AgriLife Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima City, Japan
- Japanese Avian Bioresource Project Center, Hiroshima University, Higashi-Hiroshima, Japan
| | - T Maeda
- Program of Food and AgriLife Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima City, Japan
- Japanese Avian Bioresource Project Center, Hiroshima University, Higashi-Hiroshima, Japan
| | - T Sasanami
- Department of Applied Life Sciences, Faculty of Agriculture, Shizuoka University, Shizuoka, Japan
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Takenaka T, Matsuzaki M, Fujiwara S, Hayashida M, Suyama H, Kawamoto M. Myeloperoxidase anti-neutrophil cytoplasmic antibody positive optic perineuritis after mRNA coronavirus disease-19 vaccine. QJM 2021; 114:737-738. [PMID: 34432055 PMCID: PMC8499787 DOI: 10.1093/qjmed/hcab227] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Indexed: 11/15/2022] Open
Affiliation(s)
- T Takenaka
- From the Department of Neurology, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan
| | - M Matsuzaki
- Department of Ophthalmology, Kobe City Eye Hospital, Kobe, Hyogo, Japan
- Department of Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan
| | - S Fujiwara
- From the Department of Neurology, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan
- Address correspondence to Satoru Fujiwara, Department of Neurology, Kobe City Medical Center General Hospital, 2-1-1 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan.
| | - M Hayashida
- Department of Ophthalmology, Kobe City Eye Hospital, Kobe, Hyogo, Japan
- Department of Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan
| | - H Suyama
- Department of Ophthalmology, Suyama Eye Clinic, Kobe, Hyogo 655-0047, Japan
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Toyota T, Morimoto T, Iimuro S, Iwata H, Miyauchi K, Inoue T, Nakagawa Y, Daida H, Ozaki Y, Sakuma I, Furukawa Y, Ohashi Y, Matsuzaki M, Nagai R, Kimura T. P832LDL-C levels on statins and cardiovascular event risk in stable coronary artery disease: An observation from the REAL-CAD study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0431] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The relation between very low on-treatment low-density lipoprotein cholesterol (LDL-C) level and the cardiovascular event risk is still unclear in patients receiving the same doses of statins.
Methods
From the REAL-CAD study comparing high-dose with low-dose pitavastatin therapy in Japanese patients with stable coronary artery disease, 11105 patients without reported non-adherence for the study drug were divided into 3 groups according to the on-treatment LDL-C level at 6-month (<70 mg/dL, 70–100 mg/dL, and ≥100 mg/dL; N=1016, N=3078, and N=1665 in the pitavastatin 1 mg/day stratum; N=2431, N=2524, and N=391 in the pitavastatin 4 mg/day stratum). Primary outcome measure was a composite of cardiovascular death, non-fatal myocardial infarction, non-fatal ischemic stroke, or unstable angina requiring emergent admission.
Results
In the pitavastatin 1 mg/day stratum, cumulative 4-year incidence of the primary outcome measure was not significantly different across the 3 groups (5.0%, 5.7%, and 5.2%, P=0.51), while in the 4 mg/day stratum, it was significantly higher in the LDL-C ≥100 mg/dL group than in other groups (4.5%, 3.4%, and 9.1%, P<0.001). The adjusted risks of the LDL-C <70 mg/dL group relative to the LDL-C 70–100 mg/dL group (reference) remained insignificant for the primary outcome measure in both 1 mg/day and 4 mg/day strata (HR 0.84, 95% CI 0.58–1.18, P=0.32, and HR 1.25, 95% CI 0.88–1.79, P=0.22). The adjusted risk of LDL-C ≥100 mg/dL group relative to the reference group was not significant for the primary outcome measure in the 1 mg/day stratum (HR 0.82, 95% CI 0.60–1.11, P=0.21), while it was highly significant in the 4 mg/day stratum (HR 3.32, 95% CI 2.08–5.17, P<0.001). In the on-treatment LDL-C ≥100 mg/dL group in the 4 mg/day stratum, LDL-C increased by 6.3 mg/dL from baseline to 6-month despite dose escalation of pitavastatin from 1 mg/day to 4 mg/day, suggesting the presence of unreported poor adherence in this small subgroup.
Adjusted Effects of On-treatment LDL-C
Conclusions
Very low on-treatment LDL-C level (<70 mg/dL) was not associated with lower cardiovascular event risk compared with moderately low on-treatment LDL-C level (70–100 mg/dL) in patients receiving the same doses of statins. Too much emphasis on the target LDL-C strategy might mislead the clinical practice.
Acknowledgement/Funding
The Comprehensive Support Project for Clinical Research of Lifestyle-Related Disease of the Public Health Research Foundation.
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Affiliation(s)
- T Toyota
- Kobe City Medical Center General Hospital, Department of Cardiovascular Medicine, Kobe, Japan
| | - T Morimoto
- Hyogo College of Medicine, Department of Clinical Epidemiology, Nishinomiya, Japan
| | - S Iimuro
- Teikyo University, Teikyo Academic Research Center, Tokyo, Japan
| | - H Iwata
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Miyauchi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Inoue
- Dokkyo Medical University, Department of Cardiovascular Medicine, Mibu, Japan
| | - Y Nakagawa
- Shiga University of Medical Science, Department of Cardiovascular Medicine, Otsu, Japan
| | - H Daida
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - Y Ozaki
- Fujita Health University School of Medicine, Department of Cardiology, Toyoake, Japan
| | - I Sakuma
- Caress Sapporo Hokko Memorial Clinic, Sapporo, Japan
| | - Y Furukawa
- Kobe City Medical Center General Hospital, Department of Cardiovascular Medicine, Kobe, Japan
| | - Y Ohashi
- Chuo University, Department of Integrated Science and Technology for Sustainable Society, Tokyo, Japan
| | | | - R Nagai
- Jichi Medical University, Shimotsuke, Japan
| | - T Kimura
- Kyoto University Graduate School of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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Mizuochi M, Chiba N, Yamaguchi J, Matsuzaki M, Mawatari T, Nomura Y, Sugita A, Sakurai A, Kinoshita K. MON-PO616: The Significance of the Conut Score for Measurement in Trauma Patients. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32449-5] [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: 11/26/2022]
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Watanabe Y, Takahashi H, Furuya S, Tani S, Washio T, Kawauchi K, Kobori M, Matsuzaki M, Yuzawa Y, Ashida T, Matsuo R, Yagyu S, Matsumoto N. P1550Gender difference in cholesterol levels associated with coronary microvascular dysfunction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1550] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y Watanabe
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - H Takahashi
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - S Furuya
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - S Tani
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - T Washio
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - K Kawauchi
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - M Kobori
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - M Matsuzaki
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - Y Yuzawa
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - T Ashida
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - R Matsuo
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - S Yagyu
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
| | - N Matsumoto
- Nihon University Hospital, Department of Cardiology, Tokyo, Japan
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Ohara H, Higashiguchi T, Kuzuya M, Kikutani T, Sanada H, Maruyama M, Matsuzaki M, Kamakura Y, Ito A, Mori N. SUN-P042: Efficacy of a New Intervention “Wiping Plus Providing Oral Nutritional Supplements” in Preventing Aspiration Pneumonia in Elderly People: A Multicenter, Randomized Comparative Trial. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30385-5] [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]
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Okuda S, Fukuda M, Hino A, Kato T, Doi M, Kobayashi S, Yamamoto T, Matsuzaki M, Yano M. Dantrolene inhibits aberrant Ca2+ release by stabilizing inter-domain interactions within the ryanodine receptor in cardiac troponin T-related familial hypertrophic cardiomyopathy. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5026] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kabashima K, Yoshinaga D, Fang J, Matsuzaki M, Suzuki H. Cell cycle-dependent dynamics of cytoskeleton involving mitochondrial redistribution in hamster embryos. Reprod Domest Anim 2012; 48:267-71. [PMID: 22734634 DOI: 10.1111/j.1439-0531.2012.02143.x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mitochondria-cytoskeleton interactions were studied in the hamster embryos during interphase and M phase of the cell cycle. Two-cell embryos were cultured for 1 h with nocodazole, cytochalasin D or in a combination of both inhibitors and then centrifuged at 10,000 × g for 2 min. The control embryos were only centrifuged with no inhibitor treatment. Centrifuged embryos were fluorescently stained to examine the distribution of active mitochondria and nuclear configuration. In the control 2-cell embryos, most mitochondria were accumulated at the perinuclear region with some at the cell cortex. Neither each inhibitor nor centrifugation did affect the distribution of mitochondria in interphase blastomeres. However, mitochondria were spun down towards the centrifugal pole in 71% (n = 41) of the interphase blastomeres treated with centrifugation following a combination of nocodazole plus cytochalasin D, suggesting that both microtubules and microfilaments may involve in mitochondrial redistribution during interphase of the cell cycle. In contrast, when M-phase blastomeres were treated with all drug treatments applied, including cytochalasin D, mitochondria had been usually dislocated in a unipolar cluster, suggesting that microfilaments, not microtubules, may involve in the mitochondrial redistribution during M phase of the cell cycle. The data indicate that microfilaments function in mitochondrial redistribution regardless of the stages of the cell cycle and that microtubules may strongly associate with mitochondria during the interphase but dissociate from them during the M phase.
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Affiliation(s)
- K Kabashima
- Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Japan
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Goto M, Matsuzaki M, Fuchinoue A, Urabe N, Kawagoe N, Takemoto I, Tanaka H, Watanabe T, Miyazaki T, Takeuchi M, Honda Y, Nakanishi K, Urita Y, Shimada N, Nakajima H, Sugimoto M, Goto T. Chronic atherosclerotic mesenteric ischemia that started to develop symptoms just after anaphylaxis. Case Rep Gastroenterol 2012; 6:300-8. [PMID: 22754490 PMCID: PMC3376342 DOI: 10.1159/000339204] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [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] [Indexed: 12/04/2022] Open
Abstract
An 83-year-old woman was referred to our emergency department with acute urticaria and sudden shortness of breath approximately 30 min after taking rectal diclofenac potassium for lumbago. After treatment with adrenaline and corticosteroids, the patient became hemodynamically stable and left the hospital on the next day. She attended our hospital 1 week after the onset of anaphylaxis because of repeated postprandial epigastric pain. No abnormal lesions were found in endoscopy. Radiographic selective catheter angiography revealed chronic mesenteric ischemia caused by atherosclerosis and abundant collateral arteries between the celiac trunk, the superior mesenteric artery and the inferior mesenteric artery. Patients with chronic mesenteric ischemia usually present with a clinical syndrome characterized by painful abdominal cramps and colic occurring typically during the postprandial phase. Fear of eating resulted in malnutrition. She was prescribed proton pump inhibitor, digestants, anticholinergic agents, serine protease inhibitors, prokinetics, antiplatelet agents and transdermal nitroglycerin intermittently, but these had no beneficial effects. It was most probable that this patient with chronic atherosclerotic mesenteric ischemia was suffering from functional abdominal pain syndrome induced by anaphylaxis. Since psychiatric disorders were associated with alterations in the processing of visceral sensation, we facilitated the patient's understanding of functional abdominal pain syndrome with the psychologist. Postprandial abdominal pain gradually faded after administration of these drugs and the patient left the hospital. Developing a satisfactory patient-physician relationship was considered more effective for the management of persistent abdominal pain caused by complicated mechanisms.
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Affiliation(s)
- M. Goto
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - M. Matsuzaki
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - A. Fuchinoue
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - N. Urabe
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - N. Kawagoe
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - I. Takemoto
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - H. Tanaka
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - T. Watanabe
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - T. Miyazaki
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - M. Takeuchi
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - Y. Honda
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - K. Nakanishi
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - Y. Urita
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
- *Yoshihisa Urita, 6-11-1, Omori-Nishi, Ota-Ku, Tokyo 143-8541 (Japan), Tel. +81 3 3762 4151, E-Mail
| | - N. Shimada
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - H. Nakajima
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - M. Sugimoto
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Tokyo, Japan
| | - T. Goto
- Masutani Clinic, Hiroshima, Japan
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Matsushita H, Matsuzaki M, Han XJ, Nishiki TI, Ohmori I, Michiue H, Matsui H, Tomizawa K. Antidepressant-like effect of sildenafil through oxytocin-dependent cyclic AMP response element-binding protein phosphorylation. Neuroscience 2011; 200:13-8. [PMID: 22088430 DOI: 10.1016/j.neuroscience.2011.11.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 10/31/2011] [Accepted: 11/01/2011] [Indexed: 01/12/2023]
Abstract
Oxytocin (OT) levels in plasma increase during sexual response and are significantly lower in patients with depression. A drug for the treatment of sexual dysfunction, sildenafil, enhances the electrically evoked release of OT from the posterior pituitary. In this study, we showed that sildenafil had an antidepressant-like effect through activation of an OT signaling pathway. Application of sildenafil reduced depression-related behavior in male mice. The antidepressant-like effect was blocked by an OT receptor (OTR) antagonist and was absent in OTR knockout (KO) mice. Sildenafil increased the phosphorylation of cAMP response element-binding protein (CREB) in the hippocampus. The OTR antagonist inhibited sildenafil-induced CREB phosphorylation and sildenafil had no effect on CREB phosphorylation in OTR KO mice. These results suggest sildenafil to have an antidepressant-like effect through the activation of OT signaling and to be a promising drug for the treatment of depression.
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Affiliation(s)
- H Matsushita
- Department of Physiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
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11
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Suzuki H, Sasaki Y, Shimizu M, Matsuzaki M, Hashizume T, Kuwayama H. Ghrelin and leptin did not improve meiotic maturation of porcine oocytes cultured in vitro. Reprod Domest Anim 2011; 45:927-30. [PMID: 19416485 DOI: 10.1111/j.1439-0531.2009.01352.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To improve culture system for in vitro maturation (IVM) of porcine oocytes, ghrelin, leptin or growth hormone (GH), at concentration of 0, 0.5, 5, 50 and 500 ng/ml were added to the porcine follicular fluid (pFF)-supplemented medium NCSU23, and their effects on the maturation and cytoskeletal distribution of the oocytes with or without cumulus cells were compared. In the cumulus-denuded oocytes, no significant changes were noted in the maturation rate by different hormone treatments due to a marked decline in the controls. Maturation of the cumulus intact oocytes was moderately interfered by ghrelin (0.5-50 ng/ml, p < 0.01), but not significantly affected by leptin and GH. Distribution density of the cytoplasmic microtubules was decreased significantly by addition of ghrelin (by approximately 30% in 50-500 ng/ml, p < 0.01), whereas no remarkable effect was noted by leptin supplementation. High concentration (500 ng/ml) of ghrelin or leptin decreased significantly the cytoplasmic microfilaments in density (by 43% and 38%, p < 0.01, respectively). GH did not affect cytoskeletal distribution. The results suggest, in the culture system using pFF-supplemented medium that (i) ghrelin may have some inhibitory effect on the organization of microtubules and microfilaments, probably being a factor in lowered maturation rate and (ii) the addition of higher concentration of leptin may decrease microfilaments in density with no effect on meiotic maturation of the porcine oocytes.
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Affiliation(s)
- H Suzuki
- Department of Agriculture and Horticulture, Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Aomori, Japan.
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Ichikawa T, Taura N, Miyaaki H, Matsuzaki M, Eguchi S, Takatsuki M, Kanematsu T, Nakao K. Successful pegylated interferon alpha2a monotherapy for hepatitis C virus infection in a transplanted patient who relapsed after the preceding course. Transpl Infect Dis 2011; 13:438-40. [PMID: 21309967 DOI: 10.1111/j.1399-3062.2011.00609.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Pham QH, Von Lueder TG, Namtvedt SK, Rosjo H, Omland T, Steine K, Timoteo AT, Mota Carmo M, Simoes M, Branco LM, Ferreira RC, Kato R, Ito J, Tahara T, Yokoyama Y, Ashikaga T, Satoh Y, Na JO, Hong HE, Kim MN, Shin SY, Choi CU, Kim EJ, Rha SW, Park CG, Seo HS, Oh DJ, Ticulescu R, Brigido S, Vriz O, Sparacino L, Popescu BA, Ginghina C, Carerj S, Nicolosi GL, Antonini-Canterin F, Onaindia Gandarias JJ, Romero A, Laraudogoitia E, Velasco S, Quintana O, Cacicedo A, Rodriguez I, Alarcon JA, Gonzalez J, Lekuona I, Onaindia Gandarias JJ, Laraudogoitia E, Romero A, Velasco S, Cacicedo A, Quintana O, Subinas A, Gonzalez J, Alarcon JA, Lekuona I, Abdula G, Lund LH, Winter R, Brodin L, Sahlen A, Masaki M, Cha YM, Yuasa T, Dong K, Dong YX, Mankad SV, Oh JK, Vallet F, Lequeux B, Diakov C, Sosner P, Christiaens L, Coisne D, Kihara C, Murata K, Wada Y, Uchida K, Ueyama T, Okuda S, Susa T, Matsuzaki M, Cho EJ, Choi KY, Kwon BJ, Kim DB, Jang SW, Cho JS, Jung HO, Jeon HK, Youn HJ, Kim JH, Cikes M, Bijnens B, Velagic V, Kopjar T, Milicic D, Biocina B, Gasparovic H, Almuntaser I, Brown A, Foley B, Mulvihill N, Crean P, King G, Murphy R, Takata Y, Taniguchi M, Nobusada S, Sugawara M, Toh N, Kusano K, Itoh H, Wellnhofer E, Kriatselis C, Nedios S, Gerds-Li JH, Fleck E, Poulsen MK, Henriksen JE, Dahl J, Johansen A, Haghfelt T, Hoilund-Carlsen PF, Beck-Nielsen H, Moller JE, Dankowski R, Wierzchowiecki M, Michalski M, Nowicka A, Szymanowska K, Pajak A, Poprawski K, Szyszka A, Kasner M, Westermann D, Schultheiss HP, Tschoepe C, Watanabe T, Iwai-Takano M, Kobayashi A, Machii H, Takeishi Y, Paelinck BP, Van Herck PL, Bosmans JM, Vrints CJ, Lamb HJ, Doltra A, Vidal B, Silva E, Poyatos S, Mont L, Berruezo A, Castel A, Tolosana JM, Brugada J, Sitges M, Dencker M, Bjorgell O, Hlebowicz J, Szelenyi ZS, Szenasi G, Kiss M, Prohaszka Z, Patocs A, Karadi I, Vereckei A, Saha SK, Anderson PL, Govind S, Govindan M, Moggridge JC, Kiotsekoglou A, Gopal AS, Loegstrup BB, Christophersen TB, Hoefsten DE, Moeller JE, Boetker HE, Egstrup K, Wellnhofer E, Kriatselis C, Nedios S, Gerds-Li JH, Fleck E, Graefe M, Huang FQ, Zhang RS, Le TT, Tan RS, Sattarzadeh Badkoubeh R, Tavoosi A, Elahian AR, Drapkina O, Ivashkin VI, Vereckei A, Szelenyi ZS, Fazakas A, Pepo L, Janosi O, Karadi I, Kopitovic I, Goncalves A, Marcos-Alberca P, Almeria C, Feltes G, Rodriguez E, Garcia E, Hernandez-Antolin R, Macaya C, Silva Cardoso J, Zamorano JL, Navarro MS, Valentin M, Banes CM, Rigo F, Grolla E, Tona F, Cuaia V, Moreo A, Badano L, Raviele A, Iliceto S, Tarzia P, Sestito A, Nerla R, Di Monaco A, Infusino F, Matera D, Greco F, Tacchino RM, Lanza GA, Crea F, Nemes A, Balazs E, Pinter KS, Egyed A, Csanady M, Forster T, Loegstrup BB, Christophersen TB, Hoefsten DE, Moeller JE, Boetker HE, Egstrup K, Holte E, Vegsundvag J, Hole T, Hegbom K, Wiseth R, Nemes A, Balazs E, Pinter KS, Egyed A, Csanady M, Forster T, Sharif D, Sharif-Rasslan A, Shahla C, Khalil A, Rosenschein U, Zagatina A, Zhuravskaya N, Tyurina TV, Tagliamonte E, Cirillo T, Coppola A, Marinelli U, Romano C, Riccio G, Citro R, Astarita C, Capuano N, Tagliamonte E, Cirillo T, Marinelli U, Quaranta G, Desiderio A, Riccio G, Romano C, Capuano N, Frattini S, Faggiano P, Zilioli V, Locantore E, Longhi S, Bellandi F, Faden G, Triggiani M, Dei Cas L, Dalsgaard M, Kjaergaard J, Iversen K, Hassager C, Dinh W, Nickl WN, Smettan JS, Koehler TK, Scheffold TD, Coll Barroso MCB, Guelker JG, Fueth RF, Kamperidis V, Hadjimiltiades S, Sianos G, Efthimiadis G, Karvounis H, Parcharidis G, Styliadis IH, Velasco Del Castillo MS, Cacicedo A, Onaindia JJ, Quintana O, Alarcon JA, Rodriguez I, Telleria M, Subinas A, Lekuona I, Laraudogoitia E, Carstensen HG, Nordenberg C, Sogaard P, Fritz-Hansen T, Bech J, Galatius S, Jensen JS, Mogelvang R, Bartko PE, Graf S, Rosenhek R, Burwash IG, Bergler-Klein J, Clavel MA, Baumgartner H, Pibarot P, Mundigler G, Kirilmaz B, Eser I, Tuzun N, Komur B, Dogan H, Taskiran Comez A, Ercan E, Cusma-Piccione M, Zito C, Oreto G, Piluso S, Tripepi S, Oreto L, Longordo C, Ciraci L, Di Bella G, Carerj S, Piatkowski R, Kochanowski J, Scislo P, Grabowski M, Marchel M, Roik M, Kosior D, Opolski G, Sknouril L, Dorda M, Holek B, Gajdusek L, Chovancik J, Branny M, Fiala M, Szymanski P, Lipczynska M, Klisiewicz A, Hoffman P, Jander N, Minners J, Martin G, Zeh W, Allgeier M, Gohlke-Baewolf C, Gohlke H, Nistri S, Porciani MC, Attanasio M, Abbate R, Gensini GF, Pepe G, Duncan RF, Piantadosi C, Nelson AJ, Wittert G, Dundon B, Worthley MI, Worthley SG, Jung P, Berlinger K, Rieber J, Sohn HZ, Schneider P, Leibig M, Koenig A, Klauss V, Tomkiewicz-Pajak L, Kolcz J, Olszowska M, Pieculewicz M, Podolec P, Pieculewicz M, Przewlocki T, Tomkiewicz-Pajak L, Suchon E, Sobien B, Podolec P, Pieculewicz M, Przewlocki T, Wilkolek P, Tomkiewicz-Pajak L, Ziembicka A, Podolec P, Pieculewicz M, Przewlocki T, Tomkiewicz-Pajak L, Hlawaty M, Wilkolek P, Sobien B, Suchon E, Podolec P, Van De Bruaene A, Hermans H, Buys R, Vanhees L, Delcroix M, Voigt JU, Budts W, De Cillis E, Acquaviva T, Basile D, Bortone AS, Kalimanovska-Ostric D, Nastasovic T, Vujisic-Tesic B, Jovanovic I, Milakovic B, Dostanic M, Stosic M, Frogoudaki A, Andreou K, Parisis J, Triantafyllidi E, Gaitani S, Paraskevaidis J, Anastasiou-Nana M, Pieculewicz M, Przewlocki T, Tomkiewicz-Pajak L, Sobien B, Hlawaty M, Podolec P, De Pasquale G, Kuehn A, Petzuch K, Mueller J, Meierhofer C, Fratz S, Hager A, Hess J, Vogt M, Attenhofer Jost CH, Dearani JA, Scott CG, Burkhart HM, Connolly HM, Vitarelli A, Battaglia D, Caranci F, Padella V, Continanza G, Dettori O, Capotosto L, Vitarelli M, De Cicco V, Cortez Morichetti M, Mohanan Nair KK, Sasidaharan B, Thajudeen A, Tharakan JM, Mertens L, Ahmad N, Kantor PK, Grosse-Wortmann L, Friedberg MK, Bernard YF, Morel MA, Descotes-Genon V, Jehl J, Meneveau N, Schiele F, Kaldararova M, Simkova I, Tittel P, Masura J, Trojnarska O, Szczepaniak L, Mizia -Stec K, Cieplucha A, Bartczak A, Grajek S, Tykarski A, Gasior Z, Attenhofer Jost CH, Babovicvuksanovic D, Scott CG, Bonnichsen CR, Burkhart HM, Connolly HM, Morgan GJ, Slorach C, Hui W, Sarkola T, Lee KJ, Chaturvedi R, Benson L, Mertens L, Bradley T, Iancu ME, Ghiorghiu I, Serban M, Craciunescu I, Hodo A, Popescu BA, Ginghina C, Morgan J, Morgan GJ, Slorach C, Hui W, Roche L, Lee K, Chaturvedi R, Benson L, Bradley T, Mertens L, Morgan J, Morgan GJ, Slorach C, Hui W, Sarkola T, Lee K, Chaturvedi R, Benson L, Bradley T, Mertens L, Milanesi O, Favero V, Padalino M, Biffanti R, Cerutti A, Maschietto N, Reffo E, Vida V, Stellin G, Irtyuga O, Gamazin D, Voronkina I, Tsoyi N, Gudkova E, Moiseeva O, Aggeli C, Kazazaki C, Felekos I, Lagoudakou S, Roussakis G, Skoumas J, Pitsavos C, Stefanadis C, Cueff C, Keenan N, Steg PG, Cimadevilla C, Ducrocq G, Vahanian A, Messika-Zeitoun D, Petrella L, Mazzola AM, Villani CV, Giancola RG, Ciocca MC, Di Eusanio DEM, Nolan S, Ionescu A, Skaug TR, Amundsen BH, Hergum T, Torp H, Haugen BO, Lopez Aguilera J, Mesa Rubio D, Ruiz Ortiz M, Delgado Ortega M, Villanueva Fernandez E, Cejudo Diaz Del Campo L, Toledano Delgado F, Leon Del Pino M, Romo Pena E, Suarez De Lezo Cruz-Conde J, De Marco E, Colucci A, Comerci G, Gabrielli FA, Natali R, Garramone B, Savino M, Lotrionte M, Sonaglioni A, Loperfido F, Zdravkovic M, Perunicic J, Krotin M, Ristic M, Vukomanovic V, Zaja M, Radovanovic S, Saric J, Zdravkovic D, Cotrim C, Almeida AR, Miranda R, Almeida AG, Picano E, Carrageta M, D'andrea A, Cocchia R, Riegler L, Golia E, Scarafile R, Citro R, Caso P, Russo MG, Bossone E, Calabro' R, Noman H, Adel A, Elfaramawy AMR, Abdelraouf M, Elnaggar WAEL, Baligh E, Sargento L, Silva D, Goncalves S, Ribeiro S, Vinhas Sousa G, Almeida A, Lopes M, Rodriguez-Manero M, Aguado Gil L, Azcarate P, Lloret Luna P, Macias Gallego A, Castano SARA, Garcia M, Pujol Salvador C, Barba J, Redondo P, Tomasoni L, Sitia S, Atzeni F, Gianturco L, Ricci C, Sarzi-Puttini P, Turiel M, Sitia S, Tomasoni L, Atzeni F, De Gennaro Colonna V, Sarzi-Puttini P, Turiel M, Uejima T, Jaroch J, Antonini-Canterin F, Polombo C, Carerj S, Hughes A, Vinereanu D, Evanvelista A, Leftheriotis G, Fraser AG, Lewczuk A, Sobkowicz B, Tomaszuk-Kazberuk A, Sawicki R, Hirnle T, Michalski BW, Filipiak D, Kasprzak JD, Lipiec P, Dalen H, Haugen BO, Mjolstad OC, Klykken BE, Graven T, Martensson M, Olsson M, Brodin LA, Antonini-Canterin F, Ticulescu R, Vriz O, Enache R, Leiballi E, Popescu BA, Ginghina C, Nicolosi GL, Penhall A, Perry R, Altman M, Sinhal A, Bennetts J, Chew DP, Joseph MX, Larsen LH, Kjaergaard J, Kristensen T, Kober LV, Kofoed KF, Hassager C, Moscoso Costa F, Ribeiras R, Brito J, Boshoff S, Neves J, Teles R, Canada M, Andrade MJ, Gouveia R, Silva A, Miskovic A, Poerner TP, Stiller CS, Goebel BG, Moritz AM, Stefani L, Galanti GG, Moraldo M, Bergamini C, Pabari PA, Dhutia NM, Malaweera ASN, Willson K, Davies J, Hughes AD, Xu XY, Francis DP, Jasaityte R, Amundsen B, Barbosa D, Loeckx D, Kiss G, Orderud F, Robesyn V, Claus P, Torp H, D'hooge J, Kihara C, Murata K, Wada Y, Uchida K, Nao T, Okuda S, Susa T, Miura T, Matsuzaki M, Shams K, Samir S, Samir R, El-Sayed M, Anwar AM, Nosir Y, Galal A, Chamsi-Pasha H, Ciobanu A, Dulgheru R, Bennett S, Vinereanu D, De Luca A, Toncelli L, Cappelli F, Stefani L, Cappelli B, Vono MCR, Galanti G, Zorman Y, Yilmazer MS, Akyildiz M, Gurol T, Aydin A, Dagdeviren B, Kalangos A. Poster session V * Saturday 11 December 2010, 08:30-12:30. European Journal of Echocardiography 2010. [DOI: 10.1093/ejechocard/jeq148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mora B, Base E, Schmid W, Andreas M, Weber U, Junreitmaier M, Foerster F, Hiesmayr M, Tschernich HD, Guldbrand D, Goetzsche O, Eika B, Fumagalli S, Francini S, Gabbai D, Pedri S, Casalone Rinaldi M, Makhanian Y, Sollami R, Tarantini F, Marchionni N, Azcarate PM, Castano S, Rodriguez-Manero M, Arraiza M, Levy B, Barba J, Rabago G, Bastarrika G, Rus H, Radoi M, Ciurea C, Boda D, Erdei T, Denes M, Mihalcz A, Kardos A, Foldesi CS, Temesvari A, Lengyel M, Cameli M, Lisi M, Righini F, Ballo P, Henein M, Mondillo S, Nistri S, Galderisi M, Ballo PC, Pagliani L, Olivotto I, Santoro A, Papesso B, Innelli P, Cecchi F, Mondillo S, Hristova K, Katova TZ, Kostova V, Simova Y, Nesheva N, Ivanovic B, Tadic MT, Simic DS, Rao CM, Aguglia D, Casciola G, Imbesi C, Marvelli A, Sgro M, Benedetto D, Tripepi G, Zoccali C, Benedetto FA, Mantziari L, Kamperidis V, Damvopoulou E, Ventoulis I, Giannakoulas G, Paraskevaidis S, Vassilikos V, Karvounis H, Styliadis IH, Sonder TK, Loegstrup BB, Lambrechtsen J, Van Bortel LM, Segers P, Egstrup K, Tho A, Moceri P, Bertora D, Gibelin P, Cho EJ, Choi KY, Kim BJ, Kim DB, Jang SW, Park CS, Jung HO, Jeon HK, Youn HJ, Kim JH, Donal E, Coquerel N, Bodi S, Thebault C, Kervio G, Carre F, Daly MJ, Fairley SL, Doherty R, Ashfield K, Kirkpatrick R, Smith B, Buchanan J, Hill L, Dixon LJ, Rosca M, O' Connor K, Magne J, Romano G, Calin A, Popescu BA, Beladan CC, Pierard L, Ginghina C, Lancellotti P, Bochenek T, Wita K, Tabor Z, Grabka M, Elzbieciak M, Trusz-Gluza M, Moreau O, Thebault C, Kervio G, Leclercq C, Donal E, Sahlen A, Shahgaldi K, Aminoff A, Aagaard P, Manouras A, Winter R, Ehrenborg E, Braunschweig F, Bedetti G, Gargani L, Pizzi C, Sicari R, Picano E, Ballo P, Nistri S, Innelli P, Galderisi M, Mondillo S, Zhang J, Zhang HB, Duan YY, Chen LL, Li J, Liu LW, Zhu T, Li HL, Su HL, Zhou XD, Ruiz Ortiz M, Mesa Rubio D, Delgado Ortega M, Romo Penas E, Toledano Degado F, Leon Del Pino C, Lopez Aguilera J, Villanueva Fernandez E, Cejudo Diaz Del Campo L, Suarez De Lezo J, Abergel E, Simon M, Dehant P, Bogino E, Jimenez M, Verdier JC, Chauvel C, Albertsen AE, Nielsen JC, Mortensen PT, Egeblad H, Nasr GM, Tawfik S, Omar A, Olofsson M, Boman K, Sonder TK, Loegstrup BB, Lambrechtsen J, Segers P, Van Bortel LM, Egstrup K, Rezzoug N, Vaes B, Degryse J, Vanoverschelde JL, Pasquet AA, Poggio D, Bonadies M, Pacher V, Mazzetti S, Grillo M, D'elia E, Khouri T, Specchia G, Mornos C, Rusinaru D, Cozma D, Ionac A, Petrescu L, Rotzak R, Rosenman Y, Patterson RD, Ratnatheepan S, Bogle RG, Goebel B, Gjesdal O, Kottke D, Otto S, Jung C, Edvardsen T, Figulla HR, Poerner TC, Otsuka T, Suzuki M, Yoshikawa H, Hashimoto G, Itou N, Ono T, Yamamoto M, Osaki T, Tsuchida T, Sugi K, Wolber T, Haegeli L, Huerlimann D, Brunckhorst C, Duru F, Wu ZM, Shu XH, Dong LL, Fan B, Ge JB, Greutmann M, Tobler D, Biaggi P, Mah M, Crean A, Oechslin EN, Silversides CK, Ivanovic B, Tadic MT, Simic DS, Giusca S, Jurcut R, Ghiorghiu I, Coman IM, Popescu BA, Amzulescu M, Ionescu R, Delcroix M, Voigt JU, Ginghina C, Piatkowski R, Kochanowski J, Scislo P, Grabowski M, Marchel M, Roik M, Kosior D, Opolski G, Maceira Gonzalez AM, Cosin-Sales J, Dalli E, Igual B, Monmeneu JV, Lopez-Lereu P, Estornell J, Ruvira J, Sotillo J, Stevanovic A, Toncev A, Dimkovic S, Dekleva M, Paunovic N, Toncev D, Sekularac N, Yildirimturk O, Helvacioglu FF, Tayyareci Y, Yurdakul S, Demiroglu ICC, Aytekin S, Pinedo Gago M, Amat Santos I, Revilla Orodea A, Lopez Diaz J, Arnold R, De La Fuente Galan L, Recio Platero A, Gomez Salvador I, Puerto Sanz A, San Roman Calvar JA, Yotti R, Bermejo J, Mombiela T, Benito Y, Sanchez PL, Solis J, Prieto R, Fernandez-Aviles F, Zilberszac R, Gabriel H, Graf S, Mundigler G, Maurer G, Rosenhek R, Zito C, Salvia J, Longordo C, Donato D, Alati E, Miceli M, Pardeo A, Arcidiaco S, Oreto G, Carerj S, Kamperidis V, Hadjimiltiades S, Sianos G, Anastasiadis K, Grosomanidis V, Efthimiadis G, Karvounis H, Parcharidis G, Styliadis IH, Yousry M, Rickenlund A, Petrini J, Gustafsson T, Liska J, Hamsten A, Eriksson P, Franco-Cereceda A, Eriksson MJ, Caidahl K, Mizia-Stec K, Pysz P, Jasinski M, Drzewiecka-Gerber A, Krejca M, Bochenek A, Wos S, Gasior Z, Trusz-Gluza M, Tendera M, Yildirimturk O, Helvacioglu FF, Tayyareci Y, Yurdakul S, Demiroglu ICC, Aytekin S, Niki K, Sugawara M, Takamisawa I, Watanabe H, Sumiyoshi T, Hosoda S, Ida T, Takanashi S, Olsen NT, Sogaard P, Jons C, Mogelvang R, Larsson HBW, Goetze JP, Nielsen OW, Fritz-Hansen T, Sayar N, Orhan AL, Erer HB, Eren M, Atmaca H, Yilmaz HY, Cakmak N, Altay S, Terzi S, Yesilcimen K, Garcia Orta R, Moreno E, Lopez M, Uribe I, Vidal M, Ruiz-Lopez MF, Gonzalez-Molina M, Oyonarte JM, Lopez S, Azpitarte J, Szymanski C, Levine RA, Zheng H, Handschumacher MD, Tawakol A, Hung J, Le Ven F, Etienne Y, Jobic Y, Frachon I, Castellant P, Fatemi M, Blanc JJ, Rusinaru D, Tribouilloy C, Grigioni F, Avierinos JF, Barbieri A, Buiciuc O, Enriquez-Sarano M, Said K, Farag AK, El-Ramly M, Rizk H, Iorio A, Pinamonti B, Bobbo M, Merlo M, Massa L, Faganello G, Di Lenarda A, Sinagra G, Margato R, Ribeiro H, Ferreira C, Matias A, Fontes P, Moreira JI, Milan A, Puglisi E, Magnino C, Fabbri A, Leone D, Vairo A, Crudo V, Iannaccone A, Milazzo V, Veglio F, Maroz-Vadalazhskaya N, Ostrovskiy I, Zito C, Imbalzano E, Saitta A, Oreto G, Cusma-Piccione M, Di Bella G, Nava R, Ferro M, Falanga G, Carerj S, Frigy A, Buzogany J, Szabados CS, Dan L, Carasca E, Ikonomidis I, Lekakis J, Tzortzis S, Kremastinos DT, Papadopoulos C, Paraskevaidis I, Triantafyllidi H, Trivilou P, Venetsanou K, Anastasiou-Nana M, Wierzbowska-Drabik K, Kurpesa M, Trzos E, Rechcinski T, Mozdzan M, Kasprzak JD, Kosmala W, Kotwica T, Przewlocka-Kosmala M, Mysiak A, Skultetyova D, Filipova S, Chnupa P, Mantziari L, Pechlivanidis G, Giannakoulas G, Dimitroula H, Karvounis H, Styliadis IH, Milan A, Puglisi E, Magnino C, Fabbri A, Leone D, Vairo A, Iannaccone A, Crudo V, Milazzo V, Veglio F, Tsai WC, Liu YW, Lin CC, Huang YY, Tsai LM, Park SM, Kim YH, Shin SM, Shim WJ, Gonzalez Mansilla A, Torres Macho J, Sanchez Sanchez V, Diez P, Delgado J, Borruel S, Saenz De La Calzada C, Pyxaras S, Valentincic M, Barbati G, Lo Giudice F, Perkan A, Magnani S, Merlo M, Pinamonti B, Sinagra G, Palecek T, Ambroz D, Jansa P, Lindner J, Vitovec M, Polacek P, Jiratova K, Linhart A, Baskurt M, Dogan GM, Abaci O, Kaya A, Kucukoglu S, Duszanska A, Kukulski T, Skoczylas I, Majsnerowska A, Nowowiejska-Wiewiora A, Streb W, Szulik M, Polonski L, Kalarus Z, Yerly PO, Prella M, Joly A, Nicod L, Aubert JD, Aebischer N, Dores H, Leal S, Rosario I, Correia MJ, Monge J, Grilo AM, Arroja I, Fonseca C, Aleixo A, Silva A, Perez-David E, Sanchez-Alegre M, Yotti R, Gomez Anta I, De La Torre J, Alarcon J, Garcia Robles JA, Lafuente J, Bermejo J, Fernandez-Aviles F, Garcia Alonso CJ, Vallejo Camazon N, Gonzalez Guardia A, Nunez R, Bosch Carabante C, Mateu L, Gual Capllonch F, Ferrer Sistach E, Lopez Ayerbe J, Bayes Genis A, Tomaszewski A, Kutarski A, Tomaszewski M, Bramos D, Kalantaridou A, Takos D, Skaltsiotis E, Trika C, Tsirikos N, Pamboukas C, Kottis G, Toumanidis S, Aggeli C, Felekos I, Roussakis G, Kazazaki C, Lampropoulos K, Lagoudakou S, Stergiou C, Pitsavos C, Stefanadis C, Kihara C, Murata K, Wada Y, Tanaka T, Uchida K, Okuda S, Susa T, Matsuzaki M, Shahgaldi K, Manouras A, Abrahamsson A, Gudmundsson P, Brodin L, Winter R, Knebel F, Schattke S, Sanad W, Schimke I, Schroeckh S, Brechtel L, Lock J, Makauskiene R, Baumann G, Borges AC, Moelmen-Hansen HE, Wisloff U, Aamot IL, Stoylen A, Ingul CB, Estensen ME, Beitnes JO, Grindheim G, Henriksen T, Aaberge L, Smiseth OA, Gullestad L, Aakhus S, Gargani L, Agoston G, Moggi Pignone A, Capati E, Badano L, Moreo A, Bombardieri S, Varga A, Sicari R, Picano E, Carrideo M, Faricelli S, Corazzini A, Ippedico R, Ruggieri B, Di Blasio A, D'angelo E, Di Baldassarre A, Ripari P, Gallina S, Kentrschynskyj A, Rickenlund A, Caidahl K, Hylander B, Jacobson S, Pagels A, Eriksson MJ, Dumitrescu SI, Tintoiu I, Greere V, Cristian G, Chiriac L, Pinte F, Droc I, Neagoe G, Stanciu S, Voicu VA, Kuch-Wocial A, Pruszczyk P, Szmigielski CA, Szulc M, Styczynski G, Sinski M, Kaczynska A, Ryabikov A, Malyutina S, Halcox J, Bobak M, Nikitin YU, Marmot M, Barbosa D, Kiss G, Orderud F, Amundsen B, Jasaityte R, Loeckx D, Claus P, Torp H, D'hooge J, Kuhl JT, Lonborg J, Fuchs A, Andersen M, Vejlstrup N, Engstrom T, Moller JE, Kofoed KF, Smith LA, Bhan A, Paul M, Monaghan MJ, Zaborska B, Stec S, Sikora-Frac M, Krynski T, Kulakowski P, Pushparajah K, Dashwood D, Barlow A, Nugent K, Miller O, Simpson J, Valeur N, Ersboll MK, Kjaergaard J, Greibe R, Risum N, Hassager C, Sogaard P, Kober L, Sahlen A, Manouras A, Shahgaldi K, Winter R, Brodin L, Popovic D, Nedeljkovic I, Petrovic M, Vujisic-Tesic B, Arandjelovic A, Stojiljkovic S, Stojiljkovic S, Jakovljevic B, Damjanovic S, Ostojic M, Agrios IA, Bramos DB, Skaltsiotis HS, Takos DT, Kaladaridis A, Vasiladiotis NV, Kottis GK, Antoniou AA, Pamboucas CP, Toumanidis STT, Locorotondo G, Porto I, Paraggio L, Fedele E, Barchetta S, De Caterina AR, Rebuzzi AG, Crea F, Galiuto L, Lipiec P, Szymczyk E, Michalski B, Wozniakowski B, Stefanczyk L, Rotkiewicz A, Shim A, Kasprzak JD, Vainer J, Habets J, Lousberg A, Pont De C, Waltenberger J, Farouk H, Heshmat H, Adel A, El Chilali K, Baghdady Y, Sorour K, Gustafsson U, Larsson M, Bjallmark A, Lindqvist P, A'roch R, Haney M, Waldenstrom A, Mladenovic Z, Tavciovski D, Mijailovic Z, Djordjevic - Dikic A, Obradovic S, Matunovic R, Jovic Z, Djuric P, Torp H, Aase S, Dalen H, Sarkola T, Redington AN, Keeley F, Bradley T, Jaeggi E, Sahlen H, Winter R, Brodin L, Sahlen A, Olsen NT, Risum N, Jons C, Mogelvang R, Valeur N, Fritz-Hansen T, Sogaard P. Poster session IV * Friday 10 December 2010, 14:00-18:00. European Journal of Echocardiography 2010. [DOI: 10.1093/ejechocard/jeq146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Matsuzaki M, Takahashi R, Nakayama T, Shishikura K, Suzuki H, Hirayama Y, Osawa M, Oda H. Disruption of endothelial tight junctions in a patient with mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes (MELAS). Neuropediatrics 2010; 41:72-4. [PMID: 20799154 DOI: 10.1055/s-0030-1261886] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
An electron microscopic study revealed disruption of capillary endothelial tight junctions (TJs) in both biopsied muscle, taken at 5 years and 1 month of age, and the autopsied brain, taken at 13 years and 6 months of age, in a patient with mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes (MELAS) and mitochondrial DNA (mtDNA) point mutation A3243G. This endothelial barrier disruption might result in vasogenic edema and systemic lactic acidosis, possibly the critical pathology of MELAS.
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Affiliation(s)
- M Matsuzaki
- Department of Pediatrics, Tokyo Women's Medical University, Tokyo, Japan.
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Nakayama T, Nakano K, Eto K, Shirato Y, Matsuzaki M, Osawa M. 79 “Mitochondrial cells (Mito Cells)” can live without nucleus, and have proteins encoded by both nuclear and mitochondrial DNA. Mitochondrion 2010. [DOI: 10.1016/j.mito.2009.12.074] [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: 11/26/2022]
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17
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Nakano K, Nakayama T, Shirato Y, Eto K, Matsuzaki M, Osawa M. 54 Discovery of the mitochondrial cells and its progress. Mitochondrion 2010. [DOI: 10.1016/j.mito.2009.12.050] [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: 10/19/2022]
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18
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Kabashima K, Matsuzaki M, Suzuki H. Intermediate Filament Keratin Dynamics During Oocyte Maturation Requires Maturation/M-Phase Promoting Factor and Mitogen-Activated Protein Kinase Kinase Activities in the Hamster. Reprod Domest Anim 2009; 45:e184-8. [DOI: 10.1111/j.1439-0531.2009.01545.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Ando J, Hirata Y, Nagai R, Matsuzaki M. Abstract: 510 IMPACT OF SMOKING AND HIGH-DENSITY LIPOPROTEINS ON CORONARY PLAQUE REGRESSION DURING STATIN THERAPY IN ACUTE CORONARY SYNDROME; SUB-ANALYSIS OF JAPAN-ACS. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70260-0] [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]
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20
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Ando J, Hirata Y, Nagai R, Matsuzaki M. Abstract: P301 ASSOCIATION OF CIGARETTE SMOKING WITH EARLY ONSET OF ACUTE CORONARY SYNDROME AND LIPID DISORDER; SUBANALYSIS OF JAPAN-ACS. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70596-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Mori Y, Susami T, Chikazu D, Saijo H, Sakiyama M, Matsuzaki M, Abe M, Wada M, Iino M, Takato T. Unilateral expansion of a narrow mandibular dental arch combined with bimaxillary osteotomies in a patient with hypoglossia. Int J Oral Maxillofac Surg 2009; 38:689-93. [PMID: 19406615 DOI: 10.1016/j.ijom.2009.03.719] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 12/12/2008] [Accepted: 03/30/2009] [Indexed: 11/26/2022]
Abstract
A 23-year-old female with hypoglossia, who had a narrow mandibular dental arch, was treated using the gradual expansion technique. Three lower incisors were missing and the right molar occlusion showed a scissor bite. Her speech was acceptable. Gradual unilateral expansion of the mandibular alveolar bone was performed. Orthodontic tooth alignment was performed prior to surgical treatment. A tooth-borne expander was devised using a hyrax-type screw to move the inclined right alveolar bone into an upright position. Alveolar bone osteotomies were performed under general anesthesia and the expander was placed in the mandibular dental arch. After a 5-day latency period, the screw was activated for 21 days. After expansion, the width of the mandibular dental arch increased by 10mm at the first molar region and the right molars were moved to an upright position. After a consolidation period of 7 days, simultaneous two-jaw surgery that combined Le Fort I osteotomy and intraoral vertical ramus osteotomies was performed to obtain a stable occlusion. After post-surgical orthodontic and prosthodontic treatment, her occlusion improved without deterioration of her speech. The results indicate that this technique is useful for unilateral expansion of distorted mandibular alveolar process.
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Affiliation(s)
- Y Mori
- Department of Oral-Maxillofacial Surgery, Dentistry and Orthodontics, The University of Tokyo Hospital, Tokyo, Japan.
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22
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Tadano R, Imamura Y, Matsuzaki M, Nishibori M, Tsudzuki M. Evaluation of a reduction in the effective population size for a rare Japanese native chicken breed, the Kurekodori. Anim Genet 2008; 39:457-8. [DOI: 10.1111/j.1365-2052.2008.01741.x] [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: 11/26/2022]
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23
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Shimamoto Y, Matsuzaki M, Yamaguchi M. Effective treatment of the anaemia associated with multiple myeloma by recombinant human erythropoietin. Clin Lab Haematol 2008; 13:311-3. [PMID: 1794234 DOI: 10.1111/j.1365-2257.1991.tb00287.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Y Shimamoto
- Department of Internal Medicine, Saga Medical School, Japan
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24
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Matsuzaki M, Shimamoto Y, Enokihara H, Yamaguchi M. High Eo-CSF activity in T-cell non-Hodgkin's lymphoma with eosinophilia. Clin Lab Haematol 2008; 14:251-5. [PMID: 1451405 DOI: 10.1111/j.1365-2257.1992.tb00372.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- M Matsuzaki
- Department of Internal Medicine, Saga Medical School, Japan
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Affiliation(s)
- Y Shimamoto
- Department of Internal Medicine, Saga Medical School, Japan
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26
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Wallace JM, Milne JS, Matsuzaki M, Aitken RP. Serial measurement of uterine blood flow from mid to late gestation in growth restricted pregnancies induced by overnourishing adolescent sheep dams. Placenta 2008; 29:718-24. [PMID: 18579200 DOI: 10.1016/j.placenta.2008.05.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Revised: 05/09/2008] [Accepted: 05/13/2008] [Indexed: 10/21/2022]
Abstract
Uterine blood flow (UtBF) is a major regulator of transplacental fetal nutrient supply. The aim was to serially measure uterine blood flow from mid to late pregnancy in a paradigm of relatively late onset placental and fetal growth restriction. Singleton bearing adolescent dams was fed high (H) or control (C) nutrient intakes to induce putatively compromised or normal pregnancies, respectively. A perivascular flow probe was attached to the uterine artery of the gravid horn on Day 83 of gestation and UtBF was then recorded continuously for 2h, three times weekly until approximately Day 135, when pregnancies were either terminated or ewes allowed to deliver at term (approximately Day 145). Pregnancy outcome was determined at term in contemporaneous ewes without UtBF assessment. Placental and fetal weights were lower (P<0.001) in H compared with C intake groups and were independent of flow probe surgery and monitoring. Uterine blood flow was lower in H compared with C groups at the first assessment (Day 88, P<0.001) and was positively correlated with adjusted fetal weight at term, irrespective of treatment group (P<0.01). UtBF increased throughout the second half of gestation in both groups. Linear regression analysis of UtBF against day of gestation revealed that the slope was equivalent (5.5 vs. 5.3ml/min per day) and the mean intercept lower (212 vs. 370ml/min, P<0.001) in H compared with C groups, respectively. This study demonstrates the feasibility of serially measuring UtBF within the same individual sheep for a protracted period during the second half of gestation. UtBF was already lower at mid gestation in putatively growth restricted compared with control pregnancies, ahead of any reduction in placental and fetal weight, but increased similarly during the second half of gestation in both groups. These data are commensurate with the reported decrease in placental angiogenic growth factor expression at mid gestation, and, indicate that attenuated UtBF is an early defect in this adolescent paradigm.
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Affiliation(s)
- J M Wallace
- Rowett Research Institute, Bucksburn, Aberdeen AB21 9SB, UK.
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27
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Tadano R, Nishibori M, Imamura Y, Matsuzaki M, Kinoshita K, Mizutani M, Namikawa T, Tsudzuki M. High genetic divergence in miniature breeds of Japanese native chickens compared to Red Junglefowl, as revealed by microsatellite analysis. Anim Genet 2008; 39:71-8. [DOI: 10.1111/j.1365-2052.2007.01690.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Ueyama T, Shimizu A, Esato M, Yoshiga Y, Sawa A, Suzuki S, Sugi N, Matsuzaki M. Pilsicainide-induced Brugada-type ECG and ventricular arrhythmias originating from the left posterior fascicle in a case with Brugada syndrome associated with idiopathic left ventricular tachycardia. Europace 2007; 10:86-90. [DOI: 10.1093/europace/eum244] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Wang H, Peca J, Matsuzaki M, Matsuzaki K, Noguchi J, Qiu L, Wang D, Zhang F, Boyden E, Deisseroth K, Kasai H, Hall WC, Feng G, Augustine GJ. High-speed mapping of synaptic connectivity using photostimulation in Channelrhodopsin-2 transgenic mice. Proc Natl Acad Sci U S A 2007; 104:8143-8. [PMID: 17483470 PMCID: PMC1876585 DOI: 10.1073/pnas.0700384104] [Citation(s) in RCA: 312] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
To permit rapid optical control of brain activity, we have engineered multiple lines of transgenic mice that express the light-activated cation channel Channelrhodopsin-2 (ChR2) in subsets of neurons. Illumination of ChR2-positive neurons in brain slices produced photocurrents that generated action potentials within milliseconds and with precisely timed latencies. The number of light-evoked action potentials could be controlled by varying either the amplitude or duration of illumination. Furthermore, the frequency of light-evoked action potentials could be precisely controlled up to 30 Hz. Photostimulation also could evoke synaptic transmission between neurons, and, by scanning with a small laser light spot, we were able to map the spatial distribution of synaptic circuits connecting neurons within living cerebral cortex. We conclude that ChR2 is a genetically based photostimulation technology that permits analysis of neural circuits with high spatial and temporal resolution in transgenic mammals.
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Affiliation(s)
- H. Wang
- *Department of Neurobiology, Duke University, Durham, NC 27710
| | - J. Peca
- *Department of Neurobiology, Duke University, Durham, NC 27710
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-517 Coimbra; Portugal
| | - M. Matsuzaki
- Division of Biophysics, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, University of Tokyo, Tokyo 113-0033, Japan
- Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Saitama 332-0012, Japan; and
| | - K. Matsuzaki
- Division of Biophysics, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, University of Tokyo, Tokyo 113-0033, Japan
| | - J. Noguchi
- Division of Biophysics, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, University of Tokyo, Tokyo 113-0033, Japan
| | - L. Qiu
- *Department of Neurobiology, Duke University, Durham, NC 27710
| | - D. Wang
- *Department of Neurobiology, Duke University, Durham, NC 27710
| | - F. Zhang
- Department of Bioengineering, Stanford University, Palo Alto, CA 94305
| | - E. Boyden
- Department of Bioengineering, Stanford University, Palo Alto, CA 94305
| | - K. Deisseroth
- Department of Bioengineering, Stanford University, Palo Alto, CA 94305
| | - H. Kasai
- Division of Biophysics, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, University of Tokyo, Tokyo 113-0033, Japan
| | - W. C. Hall
- *Department of Neurobiology, Duke University, Durham, NC 27710
| | - G. Feng
- *Department of Neurobiology, Duke University, Durham, NC 27710
- To whom correspondence may be addressed. E-mail: or
| | - G. J. Augustine
- *Department of Neurobiology, Duke University, Durham, NC 27710
- Division of Biophysics, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, University of Tokyo, Tokyo 113-0033, Japan
- To whom correspondence may be addressed. E-mail: or
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Kabashima K, Matsuzaki M, Suzuki H. 182 INTERACTION OF MICROTUBULES AND MICROFILAMENTS WITH DISTRIBUTION OF MITOCHONDRIA IN TWO-CELL HAMSTER EMBRYOS. Reprod Fertil Dev 2007. [DOI: 10.1071/rdv19n1ab182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
During early development, mitochondrial distribution in the ooplasm is dramatically changed. In mice and pigs, it has been reported that translocation of mitochondria is mediated by microtubules, but not by microfilaments. However, the study using hamster embryos suggested that microfilaments played a role in the mitochondrial distribution. In this study, the role of microtubules and microfilaments on distribution of mitochondria was evaluated in 2-cell hamster embryos. Female golden hamsters were superovulated on the day of post-estrus discharge by PMSG in a weight-dependent manner [Mackiernan and Bavister 2000 Hum. Reprod. 15, 157–164], and mated with males in the evening 3 days later. Two-cell embryos were collected from the oviducts at 0900–1000 on Day 2 of pregnancy. Embryos were cultured in HECM-10 medium with or without nocodazole (a microtubule assembly inhibitor), and/or cytochalasin D (a microfilament assembly inhibitor) for 8–10 h in a humidified atmosphere of 10% CO2, 5% O2, and 85% N2 at 37.5°C. After incubation of embryos with or without inhibitors, mitochondria were stained with rhodamine 123. Some of them were stained for microtubules, microfilaments, and DNA, as reported previously (Suzuki et al. 1999 Biol. Reprod. 61, 521–526). In 2-cell hamster embryos (controls, n = 44), most mitochondria were accumulated at the perinuclear region, while little mitochondria were noted in the cell cortex. Microtubules were found around the nuclei, and distribution of the mitochondria was somewhat correlated with that of the microtubules. In contrast, microfilaments were located in a high density just under the cell membrane. After nocodazole treatment (n = 22), mitochondria had extended into the subcortical (intermediate) region in various degrees, where mitochondria were aggregated into large masses. After cytochalasin D treatment (n = 17), distributional density of mitochondria at the peripheral region was decreased, and mitochondria moved back around the nucleus. After treatment by both inhibitors (n = 21), a distribution pattern of mitochondria was almost similar to that observed after cytochalasin D treatment. The present results suggest that the distribution of mitochondria at the perinuclear region is mediated by microtubules, whereas the movement of mitochondria to the cell cortex is regulated by microfilaments. Microfilaments seemed to play a role as the anchor of mitochondria at the cell cortex.
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Mori Y, Eguchi T, Matsuzaki M, Ogihara Y, Susami T, Chikazu D, Saijo H, Yonehara Y, Takato T. A 2-stage procedure combining maxillary advancement by distraction technique with mandibular setback surgery in patients with cleft lip and palate. Int J Oral Maxillofac Surg 2006; 35:594-7. [PMID: 16697142 DOI: 10.1016/j.ijom.2006.02.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2005] [Revised: 01/19/2006] [Accepted: 02/27/2006] [Indexed: 10/24/2022]
Abstract
A 2-stage procedure combining maxillary advancement by distraction technique with mandibular setback surgery was used to correct jaw deformities in 5 patients with severe maxillary retrusion secondary to cleft lip and palate. First, a Le Fort I maxillary osteotomy was performed. Immediately after maxillary distraction, the distraction device was removed. The advanced maxilla was fixed with miniplates after adjusting the length and direction of advancement, and mandibular setback surgery was performed simultaneously to obtain a normal occlusal relationship. This 2-stage procedure resulted in stable occlusion and a markedly improved facial profile.
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Affiliation(s)
- Y Mori
- Department of Oral-Maxillofacial Surgery, Dentistry and Orthodontics, The University of Tokyo Hospital, 7-3-1 Hongo, Tokyo 113-8655, Japan.
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Nomura S, Yoshimura K, Akiyama N, Mikamo A, Furutani A, Aoki H, Matsuzaki M, Hamano K. HMG-CoA reductase inhibitors reduce matrix metalloproteinase-9 activity in human varicose veins. Eur Surg Res 2006; 37:370-8. [PMID: 16465063 DOI: 10.1159/000090339] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2005] [Accepted: 10/21/2005] [Indexed: 11/19/2022]
Abstract
Matrix metalloproteinases (MMPs) have been implicated in tissue degradation in varicose veins. The aim of this study was to investigate the effects of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins) on the activity of MMPs in varicose veins. MMP-9 was present at significantly higher levels in varicose veins than in controls and was localized mainly in smooth muscle cells at the tunica media, where marked degradation of the extracellular matrix was observed. Both simvastatin and pravastatin strikingly suppressed MMP-9 activity in ex vivo culture of varicose veins. Simvastatin suppressed MMP-9 at both the mRNA and protein levels as well as at the urokinase-type plasminogen activator protein level, resulting in the dramatic suppression of MMP-9 activity induced by tumor necrosis factor-alpha. Therefore, statins suppress MMP-9 activity by multiple mechanisms in varicose veins, suggesting they may have clinical potential for the treatment of this disease.
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Affiliation(s)
- S Nomura
- Department of Medical Bioregulation, Yamaguchi University School of Medicine, Ube, Japan
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Hikiji H, Koshikiya N, Fujihara H, Hatano N, Matsuzaki M, Matsuzaki A, Ohki M, Susami T, Takato T, Toyo-oka T. Changes in the awareness of oral health among new students newly enrolled at the University of Tokyo over the past 15 years. Int J Dent Hyg 2006; 3:137-44. [PMID: 16451364 DOI: 10.1111/j.1601-5037.2005.00134.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The aim of this study was to examine changes in awareness of oral health among Japanese university students. METHODS Between 1990 and 2004, a total of 51,650 students newly enrolled at the University of Tokyo responded to an annual written questionnaire on oral health. RESULTS (i) Approximately 60% of the students brushed their teeth twice a day. Female students brushed more frequently than male students. (ii) The percentage of students who brushed for 2-3 min per time decreased, while the percentage who brushed four or more minutes increased. (iii) The number of students who had learned how to brush properly increased. This trend was particularly clear-cut among male students, although the proportion of female students who had learned to brush properly remained higher than that of male students. (iv) The percentage of female students who sought treatment for malocclusion was higher than that of male students. The percentage of students who underwent orthodontic treatment increased from 11.6 to 19.7%. The percentage of female students who received orthodontic treatment was approximately twofold that of male students. (v) The percentage of students who had temporomandibular disorders was 0.7% in males and 1.5% in females. (vi) More than 40% of the students had periodontal diseases, with a higher prevalence among male students than female students. (vii) Approximately 20% of the students wanted to consult our service centre. CONCLUSIONS The awareness of oral health among new undergraduates at the University of Tokyo has improved over the past 15 years.
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Affiliation(s)
- H Hikiji
- Health Service Center, Faculty of Medicine, University of Tokyo, Tokyo, Japan.
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Nakano K, Tarashima M, Tachikawa E, Noda N, Nakayama T, Sasaki K, Mizoguchi E, Matsuzaki M, Osawa M. Platelet mitochondrial evaluation during cytochrome c and dichloroacetate treatments of MELAS. Mitochondrion 2005; 5:426-33. [PMID: 16290150 DOI: 10.1016/j.mito.2005.10.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2005] [Revised: 09/13/2005] [Accepted: 10/12/2005] [Indexed: 10/25/2022]
Abstract
We hypothesized that serial changes in platelet (PLT) mitochondrial enzyme (ME) activities might correspond to the effects of medications for mitochondrial encephalomyopathy and stroke-like episodes (MELAS). Cytochrome c and sodium dichloroacetate (DCA) were given to a 7-year-old girl with MELAS who had an A3243G mitochondrial DNA mutation. The effects were evaluated with whole PLT-ME assays, developed by our group, using a microplate-reader. During cytochrome c treatment, complex II+III (II+III), complex IV (IV) and citrate synthase (CS) activities showed gradual but statistically significant decrease. II+III activity dropped below normal. II+III/CS activity was initially below normal, followed by a transient improvement, then decreased again before the appearance of central nervous system symptoms. II+III, IV, II+III/CS and IV/CS activities reached their lowest levels in association with a stroke-like episode, then increased with DCA treatment. Our results suggest that progressive mitochondrial dysfunction may occur before the stroke-like episodes in MELAS and that DCA treatment may increase mitochondrial activities. Our whole PLT-ME assay system may be useful for serially evaluating mitochondrial functions in relation to clinical symptoms.
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Affiliation(s)
- Kazutoshi Nakano
- Department of Pediatrics, Tokyo Women's Medical University, Shinjuku-ku, Tokyo 162-8666, Japan.
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Uemura N, Ohkusa T, Hamano K, Nakagome M, Hori H, Shimizu M, Matsuzaki M, Mochizuki S, Minamisawa S, Ishikawa Y. Down-regulation of sarcolipin mRNA expression in chronic atrial fibrillation. Eur J Clin Invest 2004; 34:723-30. [PMID: 15530144 DOI: 10.1111/j.1365-2362.2004.01422.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Abnormal intracellular Ca2+ homeostasis is an important modulator of chronic atrial fibrillation. Sarcolipin, a homologue of phospholamban, is specifically expressed in the atria, and may play an important role in modulating intracellular Ca2+ homeostasis in the atria. The aim of this study was to investigate the expression of sarcolipin mRNA in the atrial myocardium of patients with chronic atrial fibrillation. METHODS We analyzed the expression of sarcolipin, phospholamban, cardiac calsequestrin and sodium calcium exchanger mRNAs in the right atrial myocardium from nine patients with mitral valvular disease with atrial fibrillation (MVD/AF), nine patients with MVD who had normal sinus rhythm (MVD/NSR), and 10 control patients with normal sinus rhythm who received open heart surgery (controls). The expression of mRNA was measured using the ABI PRISM 7700 Sequence Detection System (Applied Biosystems, Foster City, CA). RESULTS Relative expression levels of sarcolipin mRNA were significantly lower in MVD/AF (0.60 +/- 0.11) than in either MVD/NSR (1.28 +/- 0.17, P < 0.01) or controls (1.10 +/- 0.10, P < 0.05). The expression levels of sarcolipin mRNA were significantly lower in the group with high values for right atrial pressure. The expression levels of phospholamban, cardiac calsequestrin and sodium calcium exchanger mRNAs were comparable among all three groups. CONCLUSIONS Chronic electrical and mechanical overload decreased the expression of sarcolipin mRNA in the right atrial myocardium in patients with chronic atrial fibrillation. Down-regulation of sarcolipin mRNA may be part of atrial fibrillation-induced atrial remodelling.
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Affiliation(s)
- N Uemura
- Department of Physiology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Abstract
Internal herniation through a defect of the uterine broad ligament is rarely encountered. We report a case of a 52-year-old woman in whom a closed bowel loop with approximation of its ends to the uterus was the definitive computed tomographic finding. This type of internal herniation should be considered in the differential diagnosis of female patients presenting with ileus.
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Affiliation(s)
- T Haku
- Department of Radiology, School of Medicine, Yamagata University, Iidanishi 2-2-2, Yamagata 990-9585, Japan.
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Matsuzaki M, Milne J, Aitken R, Redmer D, Wallace J. Overnourishing pregnant adolescent ewes stimulates
perirenal fat deposition in their growth restricted
foetuses. J Anim Feed Sci 2004. [DOI: 10.22358/jafs/74022/2004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Oikawa S, Kita T, Mabuchi H, Matsuzawa Y, Matsuzaki M, Nakaya N, Saito Y, Sasaki J, Shimamoto K, Itakura H. M.603 The risk of coronary heart disease in hypercholesterolemic patients with diabetes mellitus and impaired fasting glucose in Japanese population — Sub-analysis of the J-lit study, a large-scale observational cohort study. ATHEROSCLEROSIS SUPP 2004. [DOI: 10.1016/s1567-5688(04)90601-6] [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: 11/24/2022]
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Tateyama M, Takeda A, Onodera Y, Matsuzaki M, Hasegawa T, Nunomura A, Hirai K, Perry G, Smith MA, Itoyama Y. Oxidative stress and predominant Abeta42(43) deposition in myopathies with rimmed vacuoles. Acta Neuropathol 2003; 105:581-5. [PMID: 12734664 DOI: 10.1007/s00401-003-0685-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2002] [Revised: 01/20/2003] [Accepted: 01/20/2003] [Indexed: 12/01/2022]
Abstract
This study was undertaken to determine the C terminus of amyloid beta protein (Abeta), accumulated in vacuolated muscle fibers, and compare these findings to the level of oxidative stress. Eight patients with myopathies characterized by rimmed vacuoles (RVs) were analyzed. Monoclonal antibodies specific to Abeta40 or Abeta42(43) revealed that the Abeta42(43) immunoreactivity was solely distributed in the vacuolated muscle fibers, and that only a part was also immunopositive for anti-Abeta40. Quantitative analyses in four specimens, in which eight or more vacuolated muscle fibers were observed, revealed that the mean incidence of Abeta42(43)-positive muscle fibers was 79.5+/-6.2% in total vacuolated muscle fibers, whereas that of the Abeta40-positive fibers was 42.9+/-12.6%. The predominance of Abeta42(43) deposition was statistically significant ( P<0.05). Abeta deposition was then compared with the distribution of oxidative nucleic acid damage in muscle fibers using a monoclonal antibody against 8-hydroxy-2'-deoxyguanosine and 8-hydroxyguanosine (8OHdG&G). The cytoplasmic staining for anti-8OHdG&G was found not only in vacuolated muscle fibers, but also in other muscle fibers including morphologically normal ones. Positive staining was completely abolished by RNase pretreatment and, thus, was suggested to reflect an increase of cellular RNA oxidation. The distribution of 8OHdG&G was much broader than the Abeta deposition. These data suggest that Abeta42(43) is predominantly involved in the pathogenesis of muscle fiber degeneration with RVs, and that oxidative damage may precede Abeta deposition in muscle fibers and play a key role in the pathomechanism of myopathies with RVs.
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Affiliation(s)
- M Tateyama
- Department of Neurology, Tohoku University School of Medicine, 1-1 Seiryomachi, Aoba-ku, 980-8574, Sendai, Japan
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40
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Matsuzaki M. 1ML02 Coronary risk factors in Japanese population — Implications of the J-LIT study. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90076-6] [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: 11/26/2022]
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41
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Hiro T, Fujii T, Matsuzaki M. 3SY06-4 Assessment of plaque vulnerability with intravascular ultrasound. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90767-7] [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: 10/25/2022]
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42
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Matsuzaki M, Izumi T, Shishikura K, Suzuki H, Hirayama Y. Hypothalamic growth hormone deficiency and supplementary GH therapy in two patients with mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes. Neuropediatrics 2002; 33:271-3. [PMID: 12536371 DOI: 10.1055/s-2002-36742] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Two pediatric patients with mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes were diagnosed with growth hormone deficiency with the primary lesion identified as the growth hormone-releasing factor producing cells of the hypothalamus. Stimulation tests with insulin, levodopa and sleep did not overcome the deficient pattern of growth hormone secretion. By comparison, the growth hormone-releasing factor stimulation test generated a normal growth hormone response in these two patients. Growth hormone supplementary therapy was effective in terms of growth gain without adverse effects.
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Affiliation(s)
- M Matsuzaki
- Department of Pediatrics, Tokyo Women's Medical University, School of Medicine, Tokyo, Japan.
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43
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Iwamoto H, Ooga T, Moriya T, Miyachi H, Matsuzaki M, Nishimura S, Tabata S. Comparison of the histological and histochemical properties of skeletal muscles between carbon dioxide and electrically stunned chickens. Br Poult Sci 2002; 43:551-9. [PMID: 12365512 DOI: 10.1080/0007166022000004462] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
1. Histological and histochemical profiles of Musculus pectoralis (PT, type IIB fibres), M. iliotibialis lateralis (ITL, types IIA + IIB fibres) and M. puboischiofemoralis pars medialis (PIF, type I fibres) were compared in carbon dioxide (37%, 70 s) and electrically (14 V, 5 s) stunned male chickens. 2. Muscle materials were taken at 0, 4 and 24 h from carcases dressed and cooled with ice-water mixture for 30 min. Glycogen and fat contents, and adenosine triphosphatase and reduced nicotinamide adenine dinucleotide dehydrogenase activities of fibres were measured. 3. In PT muscle at 0 h, gas stunned chickens showed many fibres with high glycogen content but those electrically stunned contained few such fibres. Fibres from gas stunned birds had lost almost all their glycogen after 24 h of cold storage. 4. In the ITL muscle of gas stunned chickens at 0 h residual glycogen was observed in type IIB fibres. In contrast, in the electrically stunned birds it was in type IIA, showing the different effects of the stunning methods. During cold storage, glycogen disappeared earlier in type IIB than IIA fibres. 5. In PIF muscle with fibres of low glycogen content, the gas stunned chickens maintained a good fibre structure for 4 h or more, but the electrically stunned had already lost intact fibre structure at 4 h. 6. These results indicated that the carbon dioxide stunning was a better method for chicken welfare and meat quality than electrical stunning.
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Arii J, Tanabe Y, Miyake M, Mukai T, Matsuzaki M, Niinomi N, Watanabe H, Yokota Y, Kohno Y, Noda M. Clinical and pathologic characteristics of nontyphoidal salmonella encephalopathy. Neurology 2002; 58:1641-5. [PMID: 12058092 DOI: 10.1212/wnl.58.11.1641] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To investigate the clinical and pathologic characteristics of primary encephalopathy caused by nontyphoidal salmonellosis (NTS). METHODS Case records of six Japanese hospitals from 1994 to 1999 were reviewed. Eight cases of primary NTS encephalopathy were identified based on strictly defined criteria: 1) encephalopathic feature defined as altered state of consciousness, altered cognition or personality, or seizures; 2) detection of nontyphoidal Salmonella species in stool; 3) absence of other viral or bacterial infection associated with CNS abnormalities; and 4) absence of alternative explanation by underlying neurologic or systemic disease. Three patients died, three had severe sequelae, and two recovered completely. The authors analyzed their clinical course, neurologic symptoms, and histopathologic findings. RESULTS NTS encephalopathy was clinically characterized by diffuse and rapidly progressive brain dysfunction and circulatory failure that developed following enteritis. There was no evidence of severe dehydration or sepsis, and encephalopathy was rarely accompanied by abnormal laboratory data, except elevated CSF opening pressure, brain edema on CT, and slow waves on EEG. Pathologic findings included minimal ischemic damage and mild edema in the brain, microvesicular fatty change of the liver, severe enterocolitis but no evidence of dehydration, and no fatal organ damage including microvasculature and endothelial cells. CONCLUSION Noninfectious encephalopathy associated with nontyphoidal salmonella infection is a distinctive clinical entity that can be differentiated from Reye's syndrome and Ekiri.
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Affiliation(s)
- Junko Arii
- Division of Neurology, Chiba Children's Hospital, Heta-cho 579-1, Midori-ku, Chiba-shi, Chiba 266-0007, USA.
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Ushio M, Matsuzaki M, Takegoshi H, Murofushi T. Click- and short tone burst-evoked myogenic potentials in cerebellopontine angle tumors. Acta Otolaryngol Suppl 2002; 545:133-5. [PMID: 11677726 DOI: 10.1080/000164801750388306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
We report results of vestibular-evoked myogenic potentials (VEMPs) in patients with cerebellopontine angle tumors and compare results obtained using clicks with those obtained using 500 Hz short tone bursts (STB). We reviewed the records of 87 patients with cerebellopontine angle tumors. Clicks (0.1 ms, 95 dB nHL) were presented to all patients and STB (500 Hz, rise/fall time 1 ms, plateau time 2 ms, 95 dB nHL) were presented to 27 patients. Click-evoked VEMPs were abnormal in 69/87 patients (79%; no response in 55 patients, decreased response in 14 patients, normal response in 18 patients). STB-evoked VEMPs were abnormal in 22/27 patients (82%; no response in 18 patients, decreased response in 4 patients, normal response in 5 patients). Click- and STB-evoked VEMPs were identical in 23/27 patients (85%). Two patients showed normal STB-evoked VEMPs and decreased click- evoked VEMPs, and 2 patients showed decreased STB-evoked VEMPs and absent click- evoked VEMPs. These results confirm our previous study in a small number of patients. Vestibular afferents seem to respond better to 500 Hz STBs than to clicks.
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Affiliation(s)
- M Ushio
- Department of Otolaryngology, Faculty of Medicine, University of Tokyo, Tokyo Police Hospital, Tokyo, Japan
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Sakumura T, Fujii Z, Umemoto S, & TM, Kawata Y, Fujii K, Minami M, Sasaki K, Matsuzaki M. Dilazep, a nucleoside transporter inhibitor, modulates cell cycle progression and DNA synthesis in rat mesangial cells in vitro. Cell Prolif 2001; 33:19-28. [PMID: 10741641 PMCID: PMC6622404 DOI: 10.1046/j.1365-2184.2000.00145.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The direct effects of the nucleoside transporter inhibitor dilazep on the cell cycle of mesangial cells have not before been investigated. The purpose of this study was to elucidate whether dilazep can inhibit the proliferation of mesangial cells and how it interferes with the cell cycle of these cells. DNA histograms were used and BrdUrd uptake rate was measured by flow cytometry. There was no significant difference in the cell numbers among the untreated group and the 10(-5) M, 10(-6) M or 10(-7) M dilazep-treated groups at 24 h of incubation. However, at 48 and 72 h, the cell numbers in the dilazep-treated groups were significantly lower compared with that of the untreated group (P < 0.005). The DNA histograms of cultured rat mesangial cells at 12, 24, and 48 h of incubation with 10(-5) M dilazep showed that the ratio of the S phase population in the dilazep-treated group decreased by 2.2% at 12 h, by 9.6% at 24 h, and by 18.9% at 48 h compared with the untreated group. The ratio of the G0/G1 phase population in the dilazep-treated group significantly increased: 6.8% at 12h (P < 0.05), 13.9% at 24 h (P < 0.001), and 76.5% at 48 h (P < 0.001) compared with the untreated group. A flow cytometric measurement of bivariate DNA/BrdUrd distribution demonstrated that the DNA synthesis rate in the S phase decreased after 6 h (P < 0.005) and 12 h (P < 0.05) of incubation compared with the untreated group. These results suggest that dilazep inhibits the proliferation of cultured rat mesangial cells by suppressing the G1/S transition by prolonging G2/M and through decreasing the DNA synthesis rate.
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Affiliation(s)
- T. Sakumura
- The Second Department of Internal Medicine and
| | - Z. Fujii
- The Second Department of Internal Medicine and
| | - S. Umemoto
- The Second Department of Internal Medicine and
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- The Second Department of Internal Medicine and
| | - Y. Kawata
- The Second Department of Internal Medicine and
| | - K. Fujii
- The Second Department of Internal Medicine and
| | - M. Minami
- The Second Department of Internal Medicine and
| | - K. Sasaki
- The Department of Pathophysiology, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan; and ‡The Department of Clinical Research, National Sanyo Hospital, Ube, Yamaguchi, Japan
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Wada T, Maeda H, Kawagoe S, Fujiyama T, Matsuzaki M. [Management of medical practice at home]. Gan To Kagaku Ryoho 2001; 28 Suppl 1:11-4. [PMID: 11787274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
We present here how medical practice is managed at the patients home. Medical care at home is conducted in conjunction with a variety of professionals who provide health care in the community. The use of computers allows us to easily download information, and transfer it from the clinic to community services. Fluid replacement, total parenteral nutrition, palliative treatment of pain in cancer patients, management of urethral catheters, and other skills that are carried out at home would be stated.
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Yoneda T, Kihara Y, Ohkusa T, Iwanaga Y, Inagaki K, Takeuchi Y, Hayashida W, Ueyama T, Hisamatsu Y, Fujita M, Hatac S, Matsuzaki M, Sasayama S. Calcium handling and sarcoplasmic-reticular protein functions during heart-failure transition in ventricular myocardium from rats with hypertension. Life Sci 2001; 70:143-57. [PMID: 11787940 DOI: 10.1016/s0024-3205(01)01383-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The objective of this study was to determine the primary event that occurs in Ca2+-regulatory sarcoplasmic-reticular (SR) proteins during subacute transition from concentric/mechanically-compensated left ventricular (LV) hypertrophy to eccentric/decompensated hypertrophy. Using Dahl salt-sensitive rats with hypertension, changes of myocardial contraction, intracellular Ca2+ transients, SR Ca2+ uptake, protein levels of SR Ca2+ ATPase (SERCA2), phospholamban, and calsequestrin (CSQ), and mRNA levels of SERCA2 and CSQ were serially determined and compared between the established stage of LV hypertrophy (LVH) and the subsequent stage of overt LV dysfunction (CHF). In LVH, isolated LV papillary muscle preparations showed an equal peak-tension level and a mild prolongation of the isometric tension decay compared to those of age-matched controls. The Ca2+ transients as measured by aequorin were unchanged. The Ca2+ uptake of isolated SR vesicles and the protein/mRNA levels of SR proteins were also equivalent to those of the controls. In contrast, in CHF, the failing myocardium showed a further prolongation of the contraction time course and a 39% reduction of the peak-tension development. The Ca2+ transients showed changes consisting of a decrease in the peak level and a prolongation of the time course. In addition, the SR Ca2+ uptake was decreased by 41%. Despite these functional changes, the protein and mRNA levels of the SR components remained equivalent to those of the age-matched controls. Thus, in this hypertensive animal, 1) at the LVH stage, myocardial contractility and intracellular capability to regulate Ca2+ remained normal; 2) at the CHF stage, impaired SR Ca2+ handling and the subsequent reduction of myocardial contraction were in progress; and 3) impairments of SR function occurred at the post-translational protein level rather than at the transcriptional/translational levels. Our findings support the role of SR proteins as the primary determinant of the contractile dysfunction that occurs during the heart-failure transition; however, post-translational modulators of these SR elements may also be critical.
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Affiliation(s)
- T Yoneda
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Sakyo, Japan
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Matsuzaki M, Murofushi T. Vestibular evoked myogenic potentials in patients with idiopathic bilateral vestibulopathy. Report of three cases. ORL J Otorhinolaryngol Relat Spec 2001; 63:349-52. [PMID: 11713423 DOI: 10.1159/000055772] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Idiopathic bilateral vestibulopathy (IBV) is an acquired bilateral peripheral vestibular disorder of unknown cause. Three patients diagnosed as IBV by neuro-otological examination were reported. They underwent vestibular evoked myogenic potential (VEMP) testing which reflects the functionality of the sacculo-collic pathway. As a result, 2 of the 3 patients showed bilateral absence of VEMPs and one showed unilateral absence. The VEMPs of the 3 patients revealed that IBV affects not only the superior but also the inferior vestibular nerve systems. As previously reported in the cases of vestibular neuritis, VEMP could be useful for classifying IBV according to the function of the inferior vestibular nerve.
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Affiliation(s)
- M Matsuzaki
- Department of Otolaryngology, Faculty of Medicine, University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo, Japan.
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Inoue N, Ohkusa T, Nitta T, Harada M, Murata K, Matsuzaki M. Syncope induced by tobacco smoking in the head-up position. Jpn Circ J 2001; 65:1001-3. [PMID: 11716239 DOI: 10.1253/jcj.65.1001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 26-year-old man had a loss consciousness for a few minutes while smoking in the standing position, and was referred to hospital. No abnormalities were found in a computed tomography examination of his head, in a 24-h electrocardiogram or in an exercise tolerance test. The head-up tilt test (HUT) while tobacco smoking elicited a positive response in the tilted position, but the HUT without tobacco smoking was negative. The most noteworthy effect of tobacco smoking during the HUT was the high level of plasma epinephrine compared to the levels seen during supine smoking or the HUT alone. Syncope induced by tobacco smoking in the standing position is rare and the mechanism may be the same as that underlying neurally mediated syncope.
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Affiliation(s)
- N Inoue
- Department of Medical Bioregulation, Yamaguchi University School of Medicine, Ube, Japan
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