26
|
Mutalib A, Sekine T, Omori T, Yoshihara K. Preparation of 99mTc Nitrido Core β-Diketonate Complexes for Radiopharmaceuticals. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.1993.63.special-issue.117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
27
|
Mutalib A, Sekine T, Omori T, Yoshihara K. Synthesis and Characterization of Bis(β-diketonato)nitridotechnetium(V) Complexes. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.1993.63.special-issue.123] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
28
|
|
29
|
Fujita T, Sekine T, Hiraga H, Yoshihara K, Mutalib A, Alberto R, Kim JI. Determination of Technetium by Laser Induced Photoacoustic Spectroscopy Coupled with a Wave-Length Shifter Method. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.1993.63.special-issue.45] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
30
|
|
31
|
Nakamura T, Tomeoka K, Sekine T, Takeda H. Impact-induced chondrule flattening in the Allende CV3 carbonaceous chondrite: Shock experiments. ACTA ACUST UNITED AC 2012. [DOI: 10.1111/j.1945-5100.1995.tb01133.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
32
|
Kitagawa Y, Mori Y, Komeda O, Ishii K, Hanayama R, Fujita K, Okihara S, Sekine T, Satoh N, Kurita T, Takagi M, Kawashima T, Kan H, Nakamura N, Kondo T, Fujine M, Azuma H, Motohiro T, Hioki T, Nishimura Y, Sunahara A, Sentoku Y. Fusion using fast heating of a compactly imploded CD core. PHYSICAL REVIEW LETTERS 2012; 108:155001. [PMID: 22587260 DOI: 10.1103/physrevlett.108.155001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Indexed: 05/31/2023]
Abstract
A compact fast core heating experiment is described. A 4-J 0.4-ns output of a laser-diode-pumped high-repetition laser HAMA is divided into four beams, two of which counterilluminate double-deuterated polystyrene foils separated by 100 μm for implosion. The remaining two beams, compressed to 110 fs for fast heating, illuminate the same paths. Hot electrons produced by the heating pulses heat the imploded core, emitting x-ray radiations >20 eV and yielding some 10(3) thermal neutrons.
Collapse
|
33
|
Ooka M, Iizuka Y, Nomoto N, Fujioka T, Shimizu N, Sekine T, Kohda E. Fabry Disease Presenting with Multiple Hemorrhagic Cerebral Infarction. Neuroradiol J 2012; 25:30-5. [DOI: 10.1177/197140091202500104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2011] [Accepted: 10/25/2011] [Indexed: 11/15/2022] Open
Abstract
We describe a 57-year-old woman, a heterozygote for Fabry disease who had multiple hemorrhagic cerebral infarctions. Her clinical course and radiological findings suggested cardiogenic cerebral embolus, but distinction from multiple cerebral infarction associated with Fabry disease seemed necessary. Our present case is reported with reference to the literature to introduce various types of stroke, which can develop in patients with Fabry disease.
Collapse
|
34
|
Zakir M, Sekine T. Sonolytic Oxidation of Tc(IV)O<sub>2</sub>nH<sub>2</sub>O Nanoparticles to Tc(VII)O<sub>4</sub> in Aqueous Solution. ATOM INDONESIA 2010. [DOI: 10.17146/aij.2010.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
|
35
|
Kuroe H, Hamasaki T, Sekine T, Hase M, Oka K, Ito T, Eisaki H, Matsuda M. Triplon-spinon hybridization in Cu3Mo2O9observed using inelastic neutron scattering. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/200/2/022028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
36
|
Hamasaki T, Kuroe H, Sekine T, Hase M, Kitazawa H. Low-temperature magnetization of the low-dimensional magnet Cu3Mo2O9under high magnetic fields. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/150/4/042047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
37
|
Ikeda K, Kano O, Ito H, Kawase Y, Iwamoto K, Sato R, Sekine T, Nagata R, Nakamura Y, Hirayama T, Iwasaki Y, Plante-Bordeneuve V, Said G. Diagnostic pitfalls in sporadic transthyretin familial amyloid polyneuropathy (TTR-FAP). Neurology 2008; 70:1576; author reply 1576-7. [DOI: 10.1212/01.wnl.0000317143.41209.fd] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
38
|
Nozu K, Inagaki T, Fu XJ, Nozu Y, Kaito H, Kanda K, Sekine T, Igarashi T, Nakanishi K, Yoshikawa N, Iijima K, Matsuo M. Molecular analysis of digenic inheritance in Bartter syndrome with sensorineural deafness. J Med Genet 2008; 45:182-6. [PMID: 18310267 DOI: 10.1136/jmg.2007.052944] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Bartter syndrome (BS) is a genetic disorder accompanied by hypokalaemic metabolic alkalosis. BS with sensorineural deafness (SND, OMIM602522) is a newly identified phenotype caused by mutations in the BSND gene that encodes barttin, a beta-subunit for chloride channel ClC-Ka and ClC-Kb and classified as type IV BS. Type IV BS features the most severe phenotype entailing life-threatening neonatal volume depletion and chronic renal failure developing during infancy. A recent report described a case of BS with SND from a consanguineous family who showed homozygous mutations in the CLCNKA and CLCNKB genes. This case indicated the possibility of the occurrence of digenic inheritance in BS with SND resulting from double mutations in the CLCNKA and CLCNKB genes. SUBJECT AND RESULTS The current report concerns a 2-year-old girl from a non-consanguineous family with BS accompanied by SND. In our case, four loss-of-function mutations, consisting of mutations in both parental alleles in both CLCNKA and CLCNKB, were identified. The paternal allele had a nonsense mutation (Q260X) in CLCNKA and a splicing site mutation (IVS17+1 g>a) in CLCNKB. The maternal allele had a large deletion mutation (about 12 kbp) extending from CLCNKA to CLCNKB. Our case provides clear evidence that loss-of-function alleles in both alleles of both CLCNKA and CLCNKB results in a phenotype indistinguishable from that of mutations in BSND (type IV BS). CONCLUSIONS Recent advances in genetics have resulted in a better understanding of many human inherited diseases, but most of them are monogenic disorders and more complex inheritance patterns remain unresolved. Our case provides clear evidence of digenic inheritance outside the scope of Mendelian inheritance disorders.
Collapse
|
39
|
Sakamoto J, Sekine T. [Pulmonary pleomorphic carcinoma with rapid and peculiar metastases; report of a case]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2007; 60:253-7. [PMID: 17352146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A 54-year-old man was pointed out a mass shadow during treatment of suspected acute pyothorax. He was diagnosed as large cell carcinoma by transbronchial biopsy. Preoperative chemotherapy and right lower lobectomy were done. In pathological examination, he was diagnosed as pulmonary pleomorpic carcinoma. Postoperatively, he had rapid metastases of the pancreas, skin, muscle, brain and oral cavity. We reported a case of pulmonary pleomorphic carcinoma with rapid and peculiar metastases.
Collapse
|
40
|
Xiang Y, Masuko-Hongo K, Sekine T, Nakamura H, Yudoh K, Nishioka K, Kato T. Expression of proteinase-activated receptors (PAR)-2 in articular chondrocytes is modulated by IL-1beta, TNF-alpha and TGF-beta. Osteoarthritis Cartilage 2006; 14:1163-73. [PMID: 16757188 DOI: 10.1016/j.joca.2006.04.015] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2005] [Accepted: 04/18/2006] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate the modulation of expression of proteinase-activated receptor-2 (PAR-2) in articular chondrocytes by inflammatory cytokines. DESIGN Articular synovium and cartilage tissues were collected from eight patients with osteoarthritis (OA), and three patients without arthropathy ("normal"). Chondrocytes were stimulated with interleukin (IL)-1beta, tumor necrosis factor (TNF)-alpha or transforming growth factor (TGF)-beta1. The expression of PAR-2 was detected using reverse transcriptase-polymerase chain reaction (PCR), Western blotting and immunofluorescence. Quantitative PCR was performed to assess the expression levels of PAR-2 messenger RNA (mRNA). RESULTS The expression of PAR-2 mRNA was demonstrated in both OA and normal chondrocytes as well as in synovial fibroblasts. However, the level of PAR-2 in OA chondrocytes was much higher than in normal chondrocytes. Long-term culture revealed that PAR-2 mRNA expression was maintained up to three passages in OA but not in normal chondrocytes. IL-1beta and TNF-alpha both upregulated PAR-2 expression in normal and OA chondrocytes. In contrast, TGF-beta1 significantly decreased expression of PAR-2 in OA chondrocytes but increased PAR-2 in normal chondrocytes. CONCLUSIONS Overexpression of PAR-2 in OA chondrocytes is upregulated by proinflammatory cytokines IL-1beta and TNF-alpha, and down-regulated by regulatory cytokine TGF-beta1. PAR-2 may be involved in the pathogenesis of OA.
Collapse
|
41
|
Funabashi N, Sekine T, Komuro I. Idiopathic diverticulum-type enlargement of the right atrium demonstrated by multislice computed tomography. BRITISH HEART JOURNAL 2006; 92:1144. [PMID: 16844866 PMCID: PMC1861083 DOI: 10.1136/hrt.2005.076604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
42
|
Kobayashi T, Sekine T. Laser ablation of yttrium-containing oxides in various ambient gases studied by time-resolved emission spectroscopy. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.04.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
43
|
Mashimo T, Chau R, Zhang Y, Kobayoshi T, Sekine T, Fukuoka K, Syono Y, Kodama M, Nellis WJ. Transition to a virtually incompressible oxide phase at a shock pressure of 120 GPa (1.2 Mbar): Gd3Ga5O12. PHYSICAL REVIEW LETTERS 2006; 96:105504. [PMID: 16605758 DOI: 10.1103/physrevlett.96.105504] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2006] [Indexed: 05/08/2023]
Abstract
Cubic, single-crystal, transparent Gd(3)Ga(5)O(12) has a density of 7.10 g/cm(3), a Hugoniot elastic limit of 30 GPa, and undergoes a continuous phase transition from 65 GPa to a quasi-incompressible (QI) phase at 120 GPa. Only diamond has a larger Hugoniot elastic limit. The QI phase of is more incompressible than diamond from 170 to 260 GPa. Electrical conductivity measurements indicate the QI phase has a band gap of 3.1 eV. Gd(3)Ga(5)O(12) can be used to obtain substantially higher pressures and lower temperatures in metallic fluid hydrogen than was achieved previously by shock reverberation between Al(2)O(3) disks.
Collapse
|
44
|
Kawata T, Daimon M, Hasegawa R, Teramoto K, Toyoda T, Sekine T, Yamamoto K, Uchida D, Himi T, Yoshida K, Komuro I. Serum asymmetric dimethylarginine as a marker of coronary microcirculation in patients with non-insulin dependent diabetes mellitus: correlation with coronary flow reserve. Heart 2006; 91:1607-8. [PMID: 16287749 PMCID: PMC1769209 DOI: 10.1136/hrt.2004.051011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
45
|
Zhu YQ, Sekine T, Li YH, Fay MW, Zhao YM, Patrick Poa CH, Wang WX, Roe MJ, Brown PD, Fleischer N, Tenne R. Shock-Absorbing and Failure Mechanisms of WS2 and MoS2 Nanoparticles with Fullerene-like Structures under Shock Wave Pressure. J Am Chem Soc 2005; 127:16263-72. [PMID: 16287319 DOI: 10.1021/ja054715j] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The excellent shock-absorbing performance of WS2 and MoS2 nanoparticles with inorganic fullerene-like structures (IFs) under very high shock wave pressures of 25 GPa is described. The combined techniques of X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, thermal analysis, and transmission electron microscopy have been used to evaluate the diverse, intriguing features of shock recovered IFs, of interest for their tribological applications, thereby allowing improved understanding of their antishock behavior and structure-property relationships. Two possible failure mechanisms are proposed and discussed. The supershock-absorbing ability of the IF-WS2 enables them to survive pressures up to 25 GPa accompanied with concurrent temperatures of up to 1000 degrees C without any significant structural degradation or phase change making them probably the strongest cage molecules now known.
Collapse
|
46
|
Saito T, Tatematsu Y, Ikegami H, Sekine T, Nagai D, Nozaki K, Cho T, Hirata M, Hojo H, Ishii K, Numakura T, Sakamoto K, Takemura Y, Yoshida M. High Power Electron Heating Experiments at the Plug Region of GAMMA 10. FUSION SCIENCE AND TECHNOLOGY 2005. [DOI: 10.13182/fst05-a615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
47
|
Sekine T, Narushima H, Suzuki T, Takayama T, Kudo H, Lin M, Katsumura Y. Technetium(IV) oxide colloids produced by radiolytic reactions in aqueous pertechnetate solution. Colloids Surf A Physicochem Eng Asp 2004. [DOI: 10.1016/j.colsurfa.2004.08.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
48
|
Matsuyama T, Awazu M, Oikawa T, Inatomi J, Sekine T, Igarashi T. Molecular and clinical studies of Dent's disease in Japan: biochemical examination and renal ultrasonography do not predict carrier state. Clin Nephrol 2004; 61:231-7. [PMID: 15125028 DOI: 10.5414/cnp61231] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Dent's disease is an X-linked renal tubular disorder characterized by low-molecular-weight-proteinuria, hypercalciuria, nephrolithiasis and renal failure. The disease is due to inactivation of a renal chloride channel gene, CLCN5. We have investigated 3 unrelated Japanese families for CLCN5 mutations and assessed the carrier mothers biochemically and ultrasonogaraphically to ascertain whether these clinical examinations can predict the carrier state of the disease. MATERIAL AND METHODS Twelve members from these families were studied biochemically and ultrasonographically. Leukocyte DNA from probands was used with CLCN5-specific primers for PCR amplification of the coding region and exon-intron boundaries, and the DNA sequences of the products determined to identify abnormalities in the gene. RESULTS Three novel CLCN5 mutations consisting of a single base "A" insertion between nucleotides 590 and 591, a nonsense mutation (R28X) and a missense mutation (G506R) were exhibited. Hypophosphatemia was detected in 2 patients, beta2-microglobulinuria, alpha1-microglobulinuria, and hyperretinol binding proteinuria in 6 patients, hypercalciuria in 5 patients, decreased urine osmolality in 3 patients, and nephrocalcinosis or nephrolithiasis in 4 patients. Biochemical analysis of the urine and the renal ultrasonography in each carrier mother were completely normal. CONCLUSIONS Neither urinary low-molecular-weight-proteins, urinary calcium to creatinine ratio, nor renal ultrasonography was predictive of carrier state in the 3 families with this disease, although each carrier mother had CLCN5 mutation. Hypophosphatemia and decreased urine osmolality might be a hint to suspect the carrier state of Dent's disease, although these findings are not found frequently.
Collapse
|
49
|
|
50
|
Funabashi N, Sekine T, Komuro I. Patency of the left subclavian artery following implantation of stent graft to rectify a stenosis, as demonstrated by multislice computed tomography. BRITISH HEART JOURNAL 2004; 90:362. [PMID: 15020497 PMCID: PMC1768179 DOI: 10.1136/hrt.2003.024471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|