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Hayashi M, Chernov M, Tamura N, Tamura M, Izawa M, Muragaki Y, Iseki H, Okada Y. "Donut's shape" radiosurgical treatment planning for large cystic metastatic brain tumors. ACTA ACUST UNITED AC 2012; 54:286-9. [PMID: 22278800 DOI: 10.1055/s-0031-1297987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
BACKGROUND Radiosurgical management of large cystic metastatic brain tumors represents a significant challenge. Nevertheless, modified dose planning has shown beneficial results in such cases. METHOD AND RESULTS "Donut's shape" radiosurgical treatment planning is based on the chain-like application of multiple, small-sized isocenters for selective coverage of the contrast-enhancing tumor capsule and minimal irradiation of the central cystic area. Such an approach was used for the management of large cystic intracranial metastases, which were not accompanied by a significant mass effect and did not require immediate volume reduction. Treatment was done using Leksell Gamma Knife model C with automatic positioning system. The majority of treated lesions showed significant shrinkage after radiosurgery and no major complications were met. CONCLUSION Large cystic metastatic brain tumors may be successfully treated with gamma knife radiosurgery alone using the proposed "donut's shape" dose planning with coverage of the contrast-enhancing tumor capsule by multiple small-sized isocenters.
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Kamada H, Matsui Y, Sakurai Y, Tanigawa T, Itoh M, Kawamoto S, Kai K, Sasaki T, Takahashi K, Hayashi M, Takayama Y, Nakamura M, Kadokawa H, Ueda Y, Sutoh M, Murai M. Twelve oxo-eicosatetraenoic acid induces fetal membrane release after delivery in cows. Placenta 2011; 33:106-13. [PMID: 22118869 DOI: 10.1016/j.placenta.2011.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 10/29/2011] [Accepted: 11/01/2011] [Indexed: 10/15/2022]
Abstract
Fetal fibroblast cell culture from cotyledons of bovine placenta and animal experiments close to term were used to elucidate afterbirth release and factors missing in the signal transduction mechanism for retained fetal membranes (RFM) after delivery. In cell culture the addition of arachidonic acid (Ara) to the medium caused rapid release to free floating cell in the culture dish, accompanied by matrix metalloproteinase (MMP) activation, being consistent with previous in vivo observations, where a relation between MMP and fetal membrane release had been shown. Ara-induced cell floating was not inhibited by the addition of cyclooxygenase (COX) inhibitor, and not induced by the addition of PGF2α or PGE2 to replace Ara, while 12-lipoxygenase (12-LOX) metabolite of Ara, 12-oxo-eicosatetraenoic acid (12-oxoETE), strongly induced cell floating. In the animal experiments, 12-oxoETE injection to delivery-induced cows (n = 6) using prostaglandin (PG) and dexamethazone resulted in rapid release of fetal membranes. In cows with natural calf delivery, a 12-oxoETE peak (11.7-16.8 ng/ml) was observed in maternal blood plasma prior to release of fetal membranes. This investigation thus gives new indications for that the mediator for fetal membrane release is 12-oxoETE and not PG.
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Hayashi M, Nomoto S, Kanda M, Okamura Y, Nishikawa Y, Yamada S, Fujii T, Sugimoto H, Takeda S, Kodera Y. Identification of the A kinase anchor protein 12 (AKAP12) gene as a candidate tumor suppressor of hepatocellular carcinoma. J Surg Oncol 2011; 105:381-6. [PMID: 22052684 DOI: 10.1002/jso.22135] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Accepted: 10/12/2011] [Indexed: 01/04/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a major health problem, and identification of new tumor-related genes is an urgent task. METHODS To detect tumor-related genes effectively, we performed double-combination array analysis, which consisted of an expression array and a single nucleotide polymorphism (SNP) array of a single surgical HCC specimen. RESULTS Expression array analysis identified AKAP12 as one of the genes with reduced expression in HCC tissues when compared with non-cancerous adjacent hepatic tissues. In addition, AKAP12 expression levels in tumor tissues from 48 HCC samples were significantly lower (P < 0.001) than those in normal tissues, and the downregulation was significantly correlated with poor overall survival rate (P = 0.003). However, SNP array analysis revealed that locus 6q24-q25 where AKAP12 was located did not show chromosomal deletion. In contrast, hypermethylation in the AKAP12 promoter regions was observed in 41 of 48 HCC samples. We then confirmed that AKAP12 gene re-expression occurs after 5-aza-2'-deoxycytidine (5-aza-dC) treatment through direct sequence analysis of the AKAP12 promoter region in HCC cell lines. CONCLUSIONS The current data suggest that AKAP12 is downregulated in cancer tissues through promoter hypermethylation, and may have a role as a candidate tumor suppressor gene for HCC.
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Jimbo R, Xue Y, Hayashi M, Schwartz-Filho HO, Andersson M, Mustafa K, Wennerberg A. Genetic responses to nanostructured calcium-phosphate-coated implants. J Dent Res 2011; 90:1422-7. [PMID: 21933935 DOI: 10.1177/0022034511422911] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Nanostructured calcium phosphate (CaP) has been histologically and biomechanically proven to enhance osseointegration of implants; however, conventional techniques were not sufficiently sensitive to capture its biological effects fully. Here, we compared the conventional removal torque (RTQ) evaluation and gene expression in tissues around nanostructured CaP-coated implants, using real-time RT-PCR, with those of uncoated implants, in a rabbit model. At 2 wks, RTQ values were significantly higher, alkaline phosphatase (ALP) expression was significantly higher, and runt-related transcription factor 2 and tumor necrosis factor-α expressions were significantly lower in the coated than in the uncoated implants. This indicates that inflammatory responses were suppressed and osteoprogenitor activity increased around the CaP-coated surface. At 4 wks, although RTQ values did not significantly differ between the 2 groups, ALP and osteocalcin (OCN) were significantly up-regulated in the coated group, indicating progressive mineralization of the bone around the implant. Moreover, an osteoclast marker, adenosine triphosphatase, which indicates acidification of the resorption lacunae, was significantly higher for the coated implants, suggesting gradual resorption of the CaP coating. This study reveals detailed genetic responses to nanostructured CaP-coated implants and provides evidence that the effect of nanotopography is significant during the osseointegration cascade.
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Ishigaki T, Hoshikawa A, Yonemura M, Iwase K, Adipranoto DS, Kamiyama T, Tomiyasu-Oishi R, Morii Y, Hayashi M. iMATERIA, the versatile neutron diffractometer at J-PARC – the current status of iMATERIA. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311093548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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206
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Noda T, Ojima T, Hashimoto S, Kawado M, Seko R, Kato M, Murata C, Hayasaka S, Hayashi M, Murakami Y, Nagai M, Tsuji I. SP3-40 Disability-free life expectancy and related factors in Japan. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976o.40] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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207
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Kumagai S, Ishii H, Amano T, Uetani T, Kato B, Harada K, Yoshida T, Ando H, Kunimura A, Shimbo Y, Kitagawa K, Harada K, Hayashi M, Yoshikawa D, Matsubara T, Murohara T. Impact of chronic kidney disease on the incidence of peri-procedural myocardial injury in patients undergoing elective stent implantation. Nephrol Dial Transplant 2011; 27:1059-63. [DOI: 10.1093/ndt/gfr411] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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208
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Sugahara T, Ohama Y, Fukuda A, Hayashi M, Kawakubo A, Kato K. The cytotoxic effect of Eucheuma serra agglutinin (ESA) on cancer cells and its application to molecular probe for drug delivery system using lipid vesicles. Cytotechnology 2011; 36:93-9. [PMID: 19003319 DOI: 10.1023/a:1014057407251] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Eucheuma serra agglutinin (ESA) derived from a marine red alga, Eucheuma serra, is a lectin that specifically binds to mannose-rich carbohydrate chains. ESA is a monomeric molecule, with a molecular weight of29,000. ESA induced cell death against several cancer cell lines, such as colon cancer Colo201 cells and cervix cancer HeLa cells. DNA ladder detection and the induction of caspase-3 activity suggested that the cell death induced by ESA against cancer cells was apoptosis. ESA bound to the cell surface of Colo201 cells in the sugar chain dependent manner. This means that the binding of ESA to the cell surface is specific for mannose-rich sugar chains recognized by ESA. The binding of ESA to the cell surface of Colo201 cells was slightly suppressed by the high concentrations of serum because of the competition with serum components possessing the mannose-rich sugar chain motifs. On the other hand, a lipid vesicle is a very useful microcapsule constructed by multilamellar structure,and adopted as drug or gene carrier. ESA was immobilized on the surface of the lipid vesicles to apply the lipid vesicles to cancer specific drug delivery system. ESA-immobilized lipid vesicles were effectively bound to cancer cell lines compared with plane vesicles.
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Kovoor J, Hayashi M, Hayakawa M, Chaloupka J. P-001 Stent-assisted reconstruction of intracranial dissections: primary and secondary clinical and angiographic endpoints in 164 consecutive cases. J Neurointerv Surg 2011. [DOI: 10.1136/neurintsurg-2011-010097.35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ueda K, Tanaka T, Hayashi M, Tanaka, N, Li TS, Hamano K. What proportion of lung cancers can be operated by segmentectomy? A computed-tomography-based simulation. Eur J Cardiothorac Surg 2011; 41:341-5. [DOI: 10.1016/j.ejcts.2011.05.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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211
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Ohira K, Hayashi M. A new aspect of the TrkB signaling pathway in neural plasticity. Curr Neuropharmacol 2011; 7:276-85. [PMID: 20514207 PMCID: PMC2811861 DOI: 10.2174/157015909790031210] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 07/01/2009] [Accepted: 10/21/2009] [Indexed: 01/05/2023] Open
Abstract
In the central nervous system (CNS), the expression of molecules is strictly regulated during development. Control of the spatiotemporal expression of molecules is a mechanism not only to construct the functional neuronal network but also to adjust the network in response to new information from outside of the individual, i.e., through learning and memory. Among the functional molecules in the CNS, one of the best-studied groups is the neurotrophins, which are nerve growth factor (NGF)-related gene family molecules. Neurotrophins include NGF, brain-derived neurotrophic factor (BDNF), neurotrophin 3 (NT-3), and NT-4/5 in the mammal. Among neurotrophins and their receptors, BDNF and tropomyosin-related kinases B (TrkB) are enriched in the CNS. In the CNS, the BDNF-TrkB signaling pathway fulfills a wide variety of functions throughout life, such as cell survival, migration, outgrowth of axons and dendrites, synaptogenesis, synaptic transmission, and remodeling of synapses. Although the same ligand and receptor, BDNF and TrkB, act in these various developmental events, we do not yet understand what kind of mechanism provokes the functional multiplicity of the BDNF-TrkB signaling pathway. In this review, we discuss the mechanism that elicits the variety of functions performed by the BDNF-TrkB signaling pathway in the CNS as a tool of pharmacological therapy.
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Ibrahim M, Sany D, Bichari W, El Shahawy Y, Awadalla A, Weekers L, Warling X, Moonen M, Smelten N, Medart L, Krzesinski JM, Cavalier E, Delanaye P, Ketteler M, Martin KJ, Cozzolino M, Goldsmith D, Sharma A, Wolf M, Khan S, Amdahl M, Audhya P, Hayashi M, Kanno Y, Yoshida T, Brandenburg V, Schmitz S, Floege J, Ketteler M. Dialysis / Mineral bone disease 1. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Negoro H, Kobayashi H, Teng B, Schafer I, Starker G, Miller E, Mao Y, Park JK, Haller H, Schiffer M, Lu Y, Zhong F, Zhou Q, Hao X, Li C, Guo S, Wang W, Chen N, Okano K, Jinnai H, Iwasaki T, Miwa N, Kimata N, Akiba T, Nitta K, Chen CA, Cheng YC, Hwang JC, Chang JMC, Guh JY, Chen HC, Garcia-Sanchez O, Lopez-Novoa JM, Lopez-Hernandez FJ, Hirai Y, Iyoda M, Shibata T, Kuno Y, Akizawa T, Shimizu H, Bolati D, Niwa T, Kim YK, Nam SA, Kim WY, Park SH, Song HC, Choi EJ, Kim J, Sirolli V, Giardinelli A, Morabito C, Di Cesare M, Di Pietro N, Di Liberato L, Amoroso L, Mariggio MA, Formoso G, Pandolfi A, Bonomini M, Shalhoub V, Shatzen E, Ward S, Damore M, Boedigheimer M, Campbell M, Pan Z, Davis J, Henley C, Richards W, Yoshida T, Yamashita M, Hayashi M, Bodor C, Nemeth A, Berzsenyi V, Vegh B, Sebe A, Rosivall L, Koken T, Hunkerler Z, Kahraman A, Verzola D, Villaggio B, Tosetti F, Cappuccino L, Gianiorio F, Simonato A, Parodi E, Garibotto G, Chai Y, Liu J, Sun B, Zhao X, Qian J, Xing C. Cell signalling. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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214
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Yamamoto Y, Yamamoto S, Ibusuki M, Hayashi M, Tomiguchi M, Murakami K, Iwase H. Clinical significance of anti-p53 antibody in the sera in patients with breast cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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215
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Baek KY, Fujimura Y, Hayashi M, Lin SH, Kim SK. Density Functional Theory Study of Conformation-Dependent Properties of Neutral and Radical Cationic l-Tyrosine and l-Tryptophan. J Phys Chem A 2011; 115:9658-68. [DOI: 10.1021/jp200826z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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216
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Hayashi M, Zhao C, An KN, Amadio PC. The effects of growth and differentiation factor 5 on bone marrow stromal cell transplants in an in vitro tendon healing model. J Hand Surg Eur Vol 2011; 36:271-9. [PMID: 21282221 PMCID: PMC3329929 DOI: 10.1177/1753193410394521] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The effects of growth differentiation factor-5 (GDF-5) and bone marrow stromal cells (BMSCs) on tendon healing were investigated under in vitro tissue culture conditions. BMSCs and GDF-5 placed in a collagen gel were interpositioned between the cut ends of dog flexor digitorum profundus tendons. The tendons were randomly assigned into four groups: 1) repaired tendon without gel; 2) repaired tendon with BMSC-seeded gel; 3) repaired tendon with GDF-5 gel without cells; and 4) repaired tendon with GDF-5 treated BMSC-seeded gel. At 2 and 4 weeks, the maximal strength of repaired tendons with GDF-5 treated BMSCs-seeded gel was significantly higher than in tendons without gel interposition. However, neither BMSCs nor GDF-5 alone significantly increased the maximal strength of healing tendons at 2 or 4 weeks. These results suggest that the combination of BMSCs and GDF-5 accelerates tendon healing, but either BMSCs or GDF-5 alone are not effective in this model.
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Hayashi M, Hamu Y, Hashimoto Y, Kaneoka K, Hangai M, Okuwak T. Lumbar intervertebral disk degeneration in Japanese male volleyball players belonging to the national team. Br J Sports Med 2011. [DOI: 10.1136/bjsm.2011.084558.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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218
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Hayashi M, Hamu Y, Hashimoto Y. A guidebook for volleyball-related health problems using Manga and educational activities for injury prevention: Volleyball 911. Br J Sports Med 2011. [DOI: 10.1136/bjsm.2011.084558.42] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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219
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Hashimoto Y, Yamashita T, Hamu Y, Hayashi M. Anti-doping activites of volleyball in Japan. Br J Sports Med 2011. [DOI: 10.1136/bjsm.2011.084558.41] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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220
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Asakuma M, Hayashi M, Komeda K, Shimizu T, Hirokawa F, Miyamoto Y, Okuda J, Tanigawa N. Impact of single-port cholecystectomy on postoperative pain. Br J Surg 2011; 98:991-5. [PMID: 21538340 DOI: 10.1002/bjs.7486] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2011] [Indexed: 12/15/2022]
Abstract
BACKGROUND This study compared postoperative pain following four-port laparoscopic cholecystectomy (LC) and single-port cholecystectomy (SPC). METHOD This prospective, quasi-randomized, single-centre trial focusing on postoperative pain included 49 patients undergoing elective surgery with either a conventional LC, or SPC using a surgical glove port. Postoperative pain was evaluated using a visual analogue scale (VAS) and postoperative analgesic use as primary outcome measures. Total duration of operation, length of hospital stay, blood test results on the day after surgery and total port cost were secondary outcome measures. RESULTS Twenty-five LCs and 24 SPCs were undertaken. The VAS score on day 1 after surgery was significantly less in the SPC group than in the LC group: median (range) 24 (12-38) versus 45 (33-57) mm (P = 0·002). Significantly fewer patients in the SPC group required analgesia (9 of 24 versus 19 of 25 in the LC group; P = 0·007). There were no significant differences in total duration of operation, length of hospital stay, and blood test results on the day after surgery. CONCLUSION Single-port surgery using a surgical glove port reduces postoperative pain compared with conventional LC.
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Hayashi M. [A 35-year-old male developing intractable epilepsy and athetoid tetraplegia]. NO TO HATTATSU = BRAIN AND DEVELOPMENT 2011; 43:85-86. [PMID: 21409824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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222
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Miyabe-Nishiwaki T, Kaneko A, Nishiwaki K, Watanabe A, Watanabe S, Maeda N, Kumazaki K, Morimoto M, Hirokawa R, Suzuki J, Ito Y, Hayashi M, Tanaka M, Tomonaga M, Matsuzawa T. Tetraparesis resembling acute transverse myelitis in a captive chimpanzee (Pan troglodytes): long-term care and recovery. J Med Primatol 2011; 39:336-46. [PMID: 20444005 DOI: 10.1111/j.1600-0684.2010.00415.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND A 24-year-old, male chimpanzee (Pan troglodytes) developed acute tetraparesis. Magnetic resonance imaging showed a diffuse T2-weighted hyperintensive lesion, indicating inflammation at the C1-2 level. All infective, autoimmune, and vascular investigations were unremarkable. RESULTS AND CONCLUSIONS The chimpanzee's condition most resembled acute transverse myelitis (ATM) in humans. The chimpanzee was in severe incapacitated neurological condition with bedridden status and required 24-hour attention for 2 months followed by special care for over a year. Initially, corticosteroid therapy was performed, and his neurological symptoms improved to some extent; however, the general condition of the chimpanzee deteriorated in the first 6 months after onset. Pressure ulcers had developed at various areas on the animal's body, as the bedridden status was protracted. Supportive therapy was continued, and the general condition, appetite, mobility, and pressure ulcers have slowly but synergistically recovered over the course of 2 years.
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Anan K, Tanaka M, Yoshinaga Y, Maeda S, Yasuda Y, Hayashi M, Yamanaka T, Toyoshima S, Tamura K, Mitsuyama S. P303 Efficacy and safety of neoadjuvant weekly paclitaxel followed by 5-fluorouracil, epirubicin and cyclophosphamide: A multicenter study. Breast 2011. [DOI: 10.1016/s0960-9776(11)70243-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Abe A, Numakura C, Kijima K, Hayashi M, Hashimoto T, Hayasaka K. Molecular diagnosis and clinical onset of Charcot–Marie–Tooth disease in Japan. J Hum Genet 2011; 56:364-8. [DOI: 10.1038/jhg.2011.20] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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225
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Fujimoto Y, Uemoto S, Inomata Y, Egawa H, Fujita S, Kawanami T, Tsuruyama T, Hayashi M, Kiuchi T, Asonuma K, Tanaka K. Small bowel transplantation using grafts from living-related donors. Two case reports. Transpl Int 2011. [DOI: 10.1111/j.1432-2277.2000.tb02015.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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226
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Kiuchi T, Inomata Y, Uemoto S, Asonuma K, Egawa H, Fujita S, Hayashi M, Uryuhara K, Tanaka K. Evolution of living donor liver transplantation in adults: a single center experience. Transpl Int 2011. [DOI: 10.1111/j.1432-2277.2000.tb02002.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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227
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Anzai Y, Hayashi M, Matsuoka M, Takahashi H, Miyata R, Tanuma N, Ohya T. [Acute encephalopathy with brainstem involvement following pandemic (H1N1) 2009 influenza]. NO TO HATTATSU = BRAIN AND DEVELOPMENT 2011; 43:57-59. [PMID: 21400934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Hayashi M. [A 3-year-old girl who developed motor and swallowing disturbance and died 2 years and 11 months after the onset]. NO TO HATTATSU = BRAIN AND DEVELOPMENT 2011; 43:3-4. [PMID: 21400923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Dertinger SD, Torous DK, Hayashi M, MacGregor JT. Flow cytometric scoring of micronucleated erythrocytes: an efficient platform for assessing in vivo cytogenetic damage. Mutagenesis 2010; 26:139-45. [DOI: 10.1093/mutage/geq055] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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Osako T, Nishimura R, Okumura Y, Hayashi M, Arima N. Abstract P2-09-22: Predictive Significance of the Proportion of ER-or PgR-Positive Tumor Cells in Neoadjuvant Chemotherapy for Operable HER2-Negative Breast Cancer. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p2-09-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Estrogen receptor (ER) and progesterone receptor (PgR) status are predictive for clinical and pathological response in neoadjuvant chemotherapy for operable breast cancer. However, it remains unclear how the proportion of ER-or PgR-positive staining tumor cells affect responses to neoadjuvant chemotherapy. The purpose of this study was to examine the correlation of the proportion of ER-or PgR-positive staining tumor cells with the clinical and pathological responses to neoadjuvant chemotherapy for operable HER2-negative breast cancer. Patients and Methods
From April 2002 to May 2010, 101 patients received neoadjuvant chemotherapy containing epirubicin and taxane in our clinic. We assessed menopausal status, tumor size, lymph node status, histological grade, ER, PgR, p53 and Ki-67. In this study, we defined the positivity of ER and PgR as more than or equal to 1% of the positive staining tumor cells according to ASCO/CAP announcement in April 2010. Furthermore, patients with ER-positive tumor were divided into two groups at 30% of ER positive staining tumor cells. Results
A clinical response was seen in 82% of all patients and a pathological complete response (pCR) was seen in 17%. Of the 101 patients, 60 (59%) had ER-positive tumors and 38 (63%) of the patients had tumors with more than 90% of ER-positive staining cells. Also, 52 (51%) had PgR-positive tumors. Fourteen (34%) of the 41 patients with ER-negative tumors achieved a pCR and 15 (31%) of the 49 patients with PgR-negative tumors achieved a pCR. Patients with more than 30% of ER-or more than 1% of PgR-positive staining tumor cells did not achieve a pCR. There was no significant correlation of pCR with menopausal status, tumor size, grade and Ki-67. In univariate analysis, a pCR was associated with ER status (p=0.0001), PgR status (p=0.0001), and chemotherapy regimens (p=0.014). Multivariate analysis revealed that ER status was a significant factor for pCR, and patients with ER-negative tumors were 20.1 times more likely to achieve a pCR than those with more than or equal to 30% tumors staining tumor cells (p=0.005; 95% confidential interval, 2.5-16.5).
Conclusion
We demonstrated a predictive significance of the proportion of ER-or PgR-positive tumor cells in neoadjuvant chemotherapy for operable HER2- negative breast cancer. ER-negativity (<1%) is significantly predictive to achieve a pCR in multivariate analysis. Conversely, it seems very possible that patients with more than 30% ER-or more than 1% PgR-positive staining tumor cells do not achieve a pCR. It is important to take the proportion of ER-and PgR-positive staining tumor cells into consideration in the treatment of breast cancer.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P2-09-22.
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Aikawa K, Akamatsu D, Hayashi M, Oasa K, Kobayashi J, Naidon P, Kishimoto T, Ueda M, Inouye S. Coherent transfer of photoassociated molecules into the rovibrational ground state. PHYSICAL REVIEW LETTERS 2010; 105:203001. [PMID: 21231225 DOI: 10.1103/physrevlett.105.203001] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Indexed: 05/30/2023]
Abstract
We report on the direct conversion of laser-cooled 41K and 87Rb atoms into ultracold 41K87Rb molecules in the rovibrational ground state via photoassociation followed by stimulated Raman adiabatic passage. High-resolution spectroscopy based on the coherent transfer revealed the hyperfine structure of weakly bound molecules in an unexplored region. Our results show that a rovibrationally pure sample of ultracold ground-state molecules is achieved via the all-optical association of laser-cooled atoms, opening possibilities to coherently manipulate a wide variety of molecules.
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Shoda A, Hayashi M, Takayama N, Oshima K, Nishikawa M, Okazaki T, Negishi M, Hayashida S, Watanabe H, Inaba N. Maternal screening and postpartum vaccination for measles infection in Japan: a cohort study. BJOG 2010; 118:88-92. [DOI: 10.1111/j.1471-0528.2010.02764.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Takuma Y, Nouso K, Makino Y, Hayashi M, Takahashi H. Clinical trial: oral zinc in hepatic encephalopathy. Aliment Pharmacol Ther 2010; 32:1080-90. [PMID: 20822500 DOI: 10.1111/j.1365-2036.2010.04448.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Hepatic encephalopathy has a negative effect on patient health-related quality of life (HRQOL). Zinc supplementation has been effective with regard to altered nitrogen metabolism. AIM To investigate the effectiveness of oral zinc supplementation on hepatic encephalopathy and HRQOL. METHODS Seventy-nine cirrhotic patients with hepatic encephalopathy were randomized to receive 225 mg of polaprezinc in addition to standard therapies of a protein-restricted diet including branched-chain amino acid and lactulose, or to continue only standard therapies for 6 months. The change of HRQOL by Short Form-36, hepatic encephalopathy grade, laboratory parameters, and neuropsychological (NP) tests were compared at baseline and at 6 months. We also evaluated via multivariate analysis whether zinc supplementation and clinical variables correlated with the changes in physical component scale (PCS) and mental component scale (MCS) between the two visits. RESULTS Zinc supplementation significantly improved the PCS (P = 0.04), but not the MCS (P = 0.95). Zinc supplementation significantly decreased hepatic encephalopathy grade and blood ammonia levels (P = 0.03 and P = 0.01), and improved Child-Pugh score and NP tests compared with standard therapy (P = 0.04 and P = 0.02). In multivariate analysis, zinc supplementation was significantly associated with improvement in PCS (P = 0.03), whereas it was not significantly associated with change in MCS (P = 0.98). CONCLUSION Zinc supplementation is effective in hepatic encephalopathy and consequently improves patients HRQOL.
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Pomp S, Bevilacqua R, Hayashi M, Hirayama S, Lecolley FR, Marie N, Naitou Y, Tippawan U, Watanabe Y, Andersson P, Blomgren J, Gustavsson C, Hjalmarsson A, Prokofiev A, Simutkin V, Tengborn E, Tesinsky M, Österlund M, Kolozhvari A. A Medley with over ten years of (mostly) light-ion production measurements at The Svedberg Laboratory. EPJ WEB OF CONFERENCES 2010. [DOI: 10.1051/epjconf/20100807013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kuriki A, Hayashi M. P9-2 Effect of sleep regularity on daytime sleepiness. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60632-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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237
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Tamura T, Mitsumori K, Muto S, Kasahara H, Kobayashi S, Okuhara Y, Hayashi M, Nagasawa T, Onozato T, Kuroda J. Fifty-two week chronic toxicity of enzymatically decomposed rutin in Wistar rats. Food Chem Toxicol 2010; 48:2312-8. [DOI: 10.1016/j.fct.2010.05.065] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2009] [Revised: 04/30/2010] [Accepted: 05/24/2010] [Indexed: 10/19/2022]
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Hara K, Osada K, Yabuki M, Hashida G, Yamanouchi T, Hayashi M, Shiobara M, Nishita C, Wada M. Haze episodes at Syowa Station, coastal Antarctica: Where did they come from? ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jd012582] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Baek KY, Hayashi M, Fujimura Y, Lin SH, Kim SK. Investigation of Conformation-Dependent Properties of l-Phenylalanine in Neutral and Radical Cations by Using a Density Functional Taking into Account Noncovalent Interactions. J Phys Chem A 2010; 114:7583-9. [DOI: 10.1021/jp1024153] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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240
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Shigematsu T, Hayashi M, Nakajima K, Uno Y, Sakano A, Murakami M, Narahara Y, Ueno S, Fujii T. Effects of high hydrostatic pressure on distribution dynamics of free amino acids in water soaked brown rice grain. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/215/1/012171] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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241
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Hirao K, Maruyama T, Ohno Y, Hirose H, Shimada A, Takei I, Murata M, Morii T, Eguchi T, Hayashi M, Saruta T, Itoh H. Association of increased reactive oxygen species production with abdominal obesity in type 2 diabetes. Obes Res Clin Pract 2010; 4:e83-e162. [DOI: 10.1016/j.orcp.2009.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Revised: 09/11/2009] [Accepted: 09/23/2009] [Indexed: 01/04/2023]
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Bevilacqua R, Pomp S, Simutkin V, Tippawan U, Andersson P, Blomgren J, Österlund M, Hayashi M, Hirayama S, Naito Y, Watanabe Y, Tesinsky M, LeColley FR, Marie N, Hjalmarsson A, Prokofiev A, Kolozhvari A. Neutron induced light-ion production from Iron and Bismuth at 175 MeV. EPJ WEB OF CONFERENCES 2010. [DOI: 10.1051/epjconf/20100205005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Kaoru T, Liu FC, Ishida M, Oishi T, Hayashi M, Kitagawa M, Shimoda K, Takahashi H. Molecular characterization of the intercalated cell masses of the amygdala: implications for the relationship with the striatum. Neuroscience 2010; 166:220-30. [DOI: 10.1016/j.neuroscience.2009.12.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Revised: 11/26/2009] [Accepted: 12/01/2009] [Indexed: 10/20/2022]
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Nakaya K, Chernov M, Kasuya H, Izawa M, Hayashi M, Kato K, Kubo O, Muragaki Y, Iseki H, Hori T, Okada Y, Takakura K. Risk factors for regrowth of intracranial meningiomas after gamma knife radiosurgery: importance of the histopathological grade and MIB-1 index. ACTA ACUST UNITED AC 2010; 52:216-21. [PMID: 20077361 DOI: 10.1055/s-0029-1243244] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION The influence of histopathological grade and MIB-1 index of intracranial meningioma on the results of its radiosurgical management is not clear. The objective of the present retrospective study was to make an evaluation of these factors along with an analysis of other variables associated with progression-free survival after gamma knife radiosurgery (GKR). PATIENTS AND METHODS Thirty-four intracranial meningiomas with known detailed histopathological diagnosis were analyzed. Tumors of WHO histopathological grades I, II, and III were diagnosed in 24, 3, and 7 cases, respectively. The median MIB-1 index was 1.3% (range: 0-31.9%). In 14 cases the MIB-1 index was 3.0% and more. In 26 cases the treatment was done at the time of tumor recurrence. Median volume of the neoplasm at the time of GKR was 4.1 mL (range: 0.4-43.1 mL). Median marginal dose was 12 Gy (range: 8-19 Gy). Median length of follow-up constituted 63 months (range: 19-132 months). RESULTS Actuarial progression-free survival at 1, 3, 5, and 10 years constituted 100, 94, 83, and 58%, respectively. Histopathological grade II or III (p<0.0001), MIB-1 index 3% and more (p=0.0004), and non-skull base location (p=0.0026) of the tumor showed negative associations with progression-free survival in multivariate analyses. Actuarial progression-free survival at 5 years after GKR for benign and non-benign meningiomas constituted 100 and 45%, respectively (p<0.0001). CONCLUSION Radiosurgery is a highly effective management option for benign intracranial meningiomas, but growth control of non-benign ones is significantly worse. It requires close neuroradiological follow-up and necessitates the search for modified treatment strategies.
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Ueda K, Tanaka T, Hayashi M, Hamano K. Role of Inhaled Tiotropium on the Perioperative Outcomes of Patients with Lung Cancer and Chronic Obstructive Pulmonary Disease. Thorac Cardiovasc Surg 2010; 58:38-42. [DOI: 10.1055/s-0029-1186269] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yuasa D, Kaneko S, Shinoda M, Kamiya H, Kubota R, Tatami Y, Hayashi M, Kanayama H. Noncontact Mapping System and CFAE Ablation Add to PVI Get Better for Chronic as AF on the First Session. Heart Lung Circ 2010. [DOI: 10.1016/j.hlc.2010.06.920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Shirai K, Nakajima K, Watanabe A, Kawano Y, Hayashi M. [Perimesencephalic nonaneurysmal subarachnoid hemorrhage caused by exercise--a case of a 6-year-old girl]. NO TO HATTATSU = BRAIN AND DEVELOPMENT 2010; 42:60-62. [PMID: 23858616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Hayashi M, Okamura K, Koychev E, Furuya Y, Sugeta A, Ota T, Ebisu S. Effects of Rehydration on Dentin Strengthened by Heating or UV Irradiation. J Dent Res 2009; 89:154-8. [DOI: 10.1177/0022034509354564] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Type I collagen, the major organic component of human dentin, plays an important role in regulating the mechanical strength of dentin. Collagen in dentin can be strengthened by heating. We hypothesized that UV irradiation could produce similar strengthening effects and might maintain the strength of dentin after rehydration. Beam-shaped dentin specimens from the crowns of human third molars were subjected to flexural testing. Flexural strengths were two and three times greater than those in the control group after 5 minutes’ UV irradiation and heating to 140°C, respectively. After 30 days of rehydration, the heated specimens reverted to their original strength, whereas the UV specimens were 69% stronger than the original. Raman spectra of dental collagen were unchanged after heating, whereas several peaks, including a C-C bond in a proline ring, were amplified by UV irradiation. It is concluded that dentin strengthened by UV irradiation retains strength after rehydration because of chemical changes in collagen.
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Hayashi M, Koya T, Kawakami H, Sakagami T, Hasegawa T, Kagamu H, Takada T, Sakai Y, Suzuki E, Gelfand EW, Gejyo F. A prostacyclin agonist with thromboxane inhibitory activity for airway allergic inflammation in mice. Clin Exp Allergy 2009; 40:317-26. [PMID: 20015276 DOI: 10.1111/j.1365-2222.2009.03418.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND ONO-1301 is a novel drug that acts as a prostacyclin agonist with thromboxane A(2) (TxA(2)) synthase inhibitory activity. We investigated the effect of ONO-1301 on development of airway allergic inflammation. METHODS Mice sensitized and challenged to ovalbumin (OVA) received ONO-1301, OKY-046 (TxA(2) synthase inhibitor), beraprost, a prostacyclin receptor (IP) agonist, ONO-1301 plus CAY10449 (selective IP antagonist) or vehicle during the challenge period. Twenty-four hours after the OVA challenge, airway hyperresponsiveness (AHR) to methacholine was assessed and bronchoalveolar lavage was performed. Lung specimens were excised for goblet cell staining and analysis of lung dendritic cells (DCs). Bone marrow-derived dendritic cells (BMDCs) were generated, in the presence or absence of drugs, for analysis of DC function. RESULTS Mice that received ONO-1301 showed significantly lower AHR, airway eosinophilia, T-helper type 2 cytokine levels, mucus production and lung DCs numbers than vehicle-treated mice. These effects of ONO-1301 were mostly reversed by CAY10449. BMDCs treated with ONO-1301 alone showed lower DC functions, such as expression of costimulatory factors or stimulation to spleen T cells. CONCLUSIONS These data suggest that ONO-1301 may suppress AHR and airway allergic inflammation through modulation of DCs, mainly mediated through the IP receptor. This agent may be effective as an anti-inflammatory drug in the treatment of asthma.
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Nakajima T, Akagawa H, Ochiai T, Hayashi M, Goto S, Taira T, Okada Y. [Intrathecal baclofen therapy for spastic paraparesis due to aortic dissecting aneurysm; recent progress in treatment strategy]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2009; 62:1039-1042. [PMID: 19894566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A 48-year-old man suffered from acute dissection of thoracic aortic aneurysm which eventually led to replacement of the ascending aorta with a tube graft. During this clinical course, circulatory failure in intercostal artery resulted in spinal cord infarction followed by moto-sensory disturbance below Th7 dermatomic area. Seven months later, spasticity with pain in both lower extremities became conspicuous that was uncontrollable by any oral medication. Eventually the patient underwent the implantation of continuous infusion pump for intrathecal baclofen therapy (ITB). The clinical condition was remarkably improved and now has been well controlled. ITB, authorized by Japanese Ministry of Health Labour and Welfare in 2006, has notable therapeutic effects on spasticity derived from any sort of central nervous disorder. More promotive enlightenment if ITB is indispensable for enhancement of its medical benefit in Japan.
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