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Tsukizaki R, Koizumi H, Nishiyama K, Kuninaka H. Measurement of axial neutral density profiles in a microwave discharge ion thruster by laser absorption spectroscopy with optical fiber probes. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2011; 82:123103. [PMID: 22225195 DOI: 10.1063/1.3665954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In order to reveal the physical processes taking place within the "μ10" microwave discharge ion thruster, internal plasma diagnosis is indispensable. However, the ability of metallic probes to access microwave plasmas biased at a high voltage is limited from the standpoints of the disturbance created in the electric field and electrical isolation. In this study, the axial density profiles of excited neutral xenon were successfully measured under ion beam acceleration by using a novel laser absorption spectroscopy system. The target of the measurement was metastable Xe I 5p(5)((2)P(0) (3/2))6s[3/2](0) (2) which absorbed a wavelength of 823.16 nm. Signals from laser absorption spectroscopy that swept a single-mode optical fiber probe along the line of sight were differentiated and converted into axial number densities of the metastable neutral particles in the plasma source. These measurements revealed a 10(18) m(-3) order of metastable neutral particles situated in the waveguide, which caused two different modes during the operation of the μ10 thruster. This paper reports a novel spectroscopic measurement system with axial resolution for microwave plasma sources utilizing optical fiber probes.
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Miyamoto K, Koizumi H, Shiobara H, Kawasaki H, Wajima N, Maruyama M, Takahashi K, Kubo N, Hakamada K. [Analysis of postoperative pulmonary complications after esophagectomy for esophageal cancer]. Gan To Kagaku Ryoho 2011; 38:1933-1935. [PMID: 22202243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We examined factors contributing to an onset of postoperative pulmonary complications following esophagectomy for esophagus cancer. One hundred thirty-two cases of the resected esophageal cancer were studied. We considered the relationship between preoperative patient factors, operative factors, clinical stage factors and postoperative pulmonary complications. Postoperative pulmonary complication was observed in 27 cases (20%). The incidence of postoperative pulmonary complications was significantly higher in patients aged 70 and above and those with a preoperative serum albumin value of less than 4 .0 g/dL. Additionally, these two factors were correlated with an onset of postoperative pulmonary complications in multivariate analyses. A decrease of preoperative serum albumin value was reflecting the chronic poor nutritional condition. Moreover, it was possible that poor nutritional condition served as a prognostic factor of postoperative complications in relation to reduction of cellular immunity. The results indicated that there was a possibility of decreasing an onset of postoperative pulmonary complications using various nutrition managements before operations.
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Koizumi H, Uda S, Fujiwara K, Nozawa J. Control of effect on the nucleation rate for hen egg white lysozyme crystals under application of an external ac electric field. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:8333-8338. [PMID: 21651297 DOI: 10.1021/la2010985] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The effect of an external ac electric field on the nucleation rate of hen egg white lysozyme crystals increased with an increase in the concentration of the precipitant used, which enabled the design of an electric double layer (EDL) formed at the inner surface of the drop in the oil. This is attributed to the thickness of the EDL controlled by the ionic strength of the precipitant used. Control of the EDL formed at the interface between the two phases is important to establishing this novel technique for the crystallization of proteins under the application of an external ac electric field.
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Koizumi H, Miyasaka Y, Tanaka C, Fujii K. [A case of open head injury caused by electric saw]. NO SHINKEI GEKA. NEUROLOGICAL SURGERY 2011; 39:611-614. [PMID: 21628742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A rare case of traumatic injury caused by an electric saw is herein described. A 75-year-old male patient was admitted to our hospital as an emergency patient. At the time of the patient's admission, he was fully conscious with no neurological deficits. Computed tomography revealed an intracerebral hematoma in the right frontal lobe, traumatic subarachnoid hemorrhage and pneumocephalus. Emergency surgery was performed at 4 hours 30 minutes after the injury. After a right frontal craniectomy, the intracerebral hematoma was completely evacuated. We applied sufficient debridement. The patient had neither intracranial infection nor vascular injury. We believe that the early operation for the sake of safety was therefore effective for this patient.
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Yoshida T, Koizumi H, Yuki K, Kubota S, Hirabayashi Y, Suzuki K, Mitani K, Kobayashi T, Ohyama M, Amagai M, Okada Y, Akamatsu W, Tsubota K, Shimmura S, Ozawa Y, Okano H. P75. A gene therapy for a gene mutation in human iPS cell using helper-dependent adenoviral vector. Differentiation 2010. [DOI: 10.1016/j.diff.2010.09.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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56
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Maruta Y, Fujii M, Imoto H, Nomura S, Oka F, Goto H, Yoneda H, Ideguchi M, Koizumi H, Ishihara H, Kajiwara K, Suzuki M. P31-9 Intraoperative monitoring of the motor evoked potential elicited by direct cortical stimulation of the lower extremities. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61176-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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57
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Maruta Y, Fujii M, Imoto H, Nomura S, Oka F, Goto H, Yoneda H, Ideguchi M, Koizumi H, Ishihara H, Kajiwara K, Suzuki M. P31-10 Intraoperative monitoring of the lower extremity motor evoked potential (LE-MEP) elicited by direct cortical stimulation. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61177-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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58
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Koizumi H. S24-1 Principle of NIRS imaging. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60154-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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59
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Itoh A, Izumi J, Ina K, Koizumi H. Brittle-to-ductile transition in polycrystalline aluminum containing gallium in the grain boundaries. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/240/1/012033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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60
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Yamanishi T, Takao K, Koizumi H, Ishihama K, Nohara K, Komaki M, Enomoto A, Yokota Y, Kogo M. Alpha2-adrenoceptors coordinate swallowing and respiration. J Dent Res 2010; 89:258-63. [PMID: 20139342 DOI: 10.1177/0022034509360312] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Because the discoordination between swallowing and respiration may cause severe respiratory disorders such as aspiration pneumonia, understanding the neuronal mechanisms underlying such coordination is important. Recently, it was reported that medullary noradrenergic neurons are involved in evoking esophageal-gastric relaxation reflex, leading to a hypothesis that such neurons are also involved in swallowing-respiration coordination. We tested this hypothesis using an in vitro brain-stem preparation obtained from neonatal rats. A temporal inhibition of respiratory rhythm was consistently observed when swallowing activity was induced by electrical stimulations to the supralaryngeal nerve. We found that a broad adrenergic receptor agonist, norepinephrine, markedly blocked the swallowing-induced temporal inhibition of respiration. Further studies revealed that swallowing-induced respiratory inhibition is blocked by an alpha2-adrenergic receptor agonist and enhanced by an alpha2-adrenergic receptor antagonist, indicating an important role of alpha2-adrenergic receptors in regulation of the coordination between swallowing and respiration in vitro.
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Utsuki S, Oka H, Suzuki S, Sato S, Osawa S, Koizumi H, Miyajima Y, Fujii K. [Effect of Chai-ling-tang (Sairei-to) for methotrexate concentration degradation delay by methotrexate high-dose therapy]. NO SHINKEI GEKA. NEUROLOGICAL SURGERY 2010; 38:133-137. [PMID: 20166525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
When methotrexate (MTX) salvage chemotherapy is performed for primary brain malignant lymphoma, use of leucovonrin rescue must often be extended due to delays in the degradation of blood concentration. We examined whether delay in MTX blood concentration degradation could be prevented by chai-ling-tang (Sairei-to) which has diuretic action. In the five cases examined were MTX blood concentration 72 hours after MTX administration was more than 1 x 10(-7) M. A single dose of 3 g of chai-ling-tang was administered three times on the day the MTX salvage chemotherapy was subsequently performed. MTX blood concentration at 72 hours post MTX administration and subsequent chai-ling-tang administration was less than 1 x 10(-7) M in all five cases. In addition, urea nitrogen and creatinine levels in serum increased and creatinine clearance decreased following MTX administration, however these changes induced by MTX administration were reduced by chai-ling-tang administration. Chai-ling-tang was effective in preventing an MTX deferent delay in MTX high-dose therapy by improving renal blood flow.
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Abstract
Regulation of nuclear movement is a critical event in neurogenesis and neuronal migration during brain development. In this issue of Neuron, Zhang et al. identify a role for SUN and the KASH-domain-containing nuclear membrane proteins as the long-sought linker between microtubules and the nucleus during brain development.
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Koizumi H, Nomura K, Yokota Y, Enomoto A, Yamanishi T, Iida S, Ishihama K, Kogo M. Regulation of Trigeminal Respiratory Motor Activity in the Brainstem. J Dent Res 2009; 88:1048-53. [DOI: 10.1177/0022034509345998] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The trigeminal motor system participates in the control of respiration as well as suckling and mastication. However, the central mechanism underlying respiratory activity in trigeminal motoneurons is not well-understood. In this study, we aimed to elucidate brainstem circuitry for rhythm generation and signal transmission of trigeminal respiratory activity in in vitro neonatal rat brainstem-spinal cord preparations. We further examined the role of midline-crossing trigeminal interneurons in the bilateral synchronization of respiratory and suckling activity in trigeminal motor nerves. The results of brainstem-sectioning experiments indicated that respiratory rhythms were generated in the medulla and ipsilaterally transmitted to trigeminal motoneurons in the pons. We conclude that the trigeminal motor system, as well as the hypoglossal and phrenic motor system, is regulated by medullary respiratory networks, and that pontine interactions between bilateral trigeminal interneurons are not critical for the generation or synchronization of trigeminal respiratory activity, but are crucial for trigeminal suckling activity.
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Edagawa K, Koizumi H, Kamimura Y, Suzuki T. Temperature dependence of the flow stress of III–V compounds. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/01418610008216494] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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65
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Aoki R, Sato H, Katura T, Utsugi K, Koizumi H, Matsuda R, Maki A. Prefrontal Activity during Non-emotional Working Memory Tasks Reflects Individual Differences in Depressive Mood: an Optical Topography Study. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)72077-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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66
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Koizumi H, Tachibana M, Kojima K. Elastic constants in tetragonal hen egg-white lysozyme crystals containing large amount of water. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2009; 79:061917. [PMID: 19658534 DOI: 10.1103/physreve.79.061917] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2008] [Revised: 05/07/2009] [Indexed: 05/28/2023]
Abstract
Transverse sound velocity of cross-linked tetragonal hen egg-white (HEW) lysozyme crystals containing large amount of water in the crystal was measured using ultrasonic pulse-echo method. All elastic constants of cross-linked crystals were observed to be C11=C22=5.50 GPa, C12=4.33 GPa, C13=C23=3.94 GPa, C33=5.22 GPa, C44=C55=0.68 GPa, and C66=0.84 GPa, respectively. We found that the elastic constants of the cross-linked crystals are identical to those of the intrinsic ones without cross-linking. Moreover, we found that tetragonal HEW lysozyme crystals that enclose large amount of water show decreased elastic constants (softening). In particular, the shear elastic constants C44=C55 and C66 showed more softening effect comparing with other elastic components.
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Ohgake S, Shimizu E, Hashimoto K, Okamura N, Koike K, Koizumi H, Fujisaki M, Kanahara N, Matsuda S, Sutoh C, Matsuzawa D, Muramatsu H, Muramatsu T, Iyo M. Dopaminergic hypofunctions and prepulse inhibition deficits in mice lacking midkine. Prog Neuropsychopharmacol Biol Psychiatry 2009; 33:541-6. [PMID: 19217924 DOI: 10.1016/j.pnpbp.2009.02.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Revised: 02/08/2009] [Accepted: 02/08/2009] [Indexed: 02/04/2023]
Abstract
Midkine is a 13-kDa retinoic acid-induced heparin-binding growth factor involved in various biological phenomena such as cell migration, neurogenesis, and tissue repair. We previously demonstrated that midkine-deficient (Mdk(-/-)) mice exhibited a delayed hippocampal development with impaired working memory and increased anxiety only at the age of 4 weeks. To assess whether midkine gene could play important roles in development and maintenance of central nervous system, we investigated biochemical and behavioral parameters in dopamine and glutamate neurotransmission of Mdk(-/-) mice. The Mdk(-/-) mice exhibited a hypodopaminergic state (i.e., decreased levels of dopamine and its receptors in the striatum) with no alterations of glutamatergic system (i.e., normal level of glutamate, glutamine, glycine, d-serine, l-serine, and NMDA receptors in the frontal cortex and hippocampus). We also found prepulse inhibition deficits reversed by clozapine and haloperidol in the Mdk(-/-) mice. Our results suggested that midkine deficiency may be related to neurochemical and behavioral dysfunctions in dopaminergic system.
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MESH Headings
- Acoustic Stimulation/methods
- Analysis of Variance
- Animals
- Behavior, Animal/drug effects
- Chromatography, High Pressure Liquid/methods
- Cytokines/deficiency
- Dopamine/metabolism
- Dopamine Antagonists/metabolism
- Dopamine Antagonists/pharmacology
- Dopamine Plasma Membrane Transport Proteins/metabolism
- Dose-Response Relationship, Drug
- Exploratory Behavior/physiology
- Interpersonal Relations
- Mice
- Mice, Inbred C57BL/metabolism
- Mice, Inbred DBA/metabolism
- Mice, Knockout
- Midkine
- Motor Activity/drug effects
- Motor Activity/genetics
- Neural Inhibition/drug effects
- Neural Inhibition/genetics
- Protein Binding/drug effects
- Protein Binding/genetics
- Radioligand Assay/methods
- Receptors, Dopamine D1/metabolism
- Receptors, Dopamine D2/metabolism
- Reflex, Startle/drug effects
- Reflex, Startle/genetics
- Tritium/metabolism
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Sato S, Kawamura S, Ando M, Nakamura T, Tsubono K, Araya A, Funaki I, Ioka K, Kanda N, Moriwaki S, Musha M, Nakazawa K, Numata K, Sakai SI, Seto N, Takashima T, Tanaka T, Agatsuma K, Aoyanagi KS, Arai K, Asada H, Aso Y, Chiba T, Ebisuzaki T, Ejiri Y, Enoki M, Eriguchi Y, Fujimoto MK, Fujita R, Fukushima M, Futamase T, Ganzu K, Harada T, Hashimoto T, Hayama K, Hikida W, Himemoto Y, Hirabayashi H, Hiramatsu T, Hong FL, Horisawa H, Hosokawa M, Ichiki K, Ikegami T, Inoue KT, Ishidoshiro K, Ishihara H, Ishikawa T, Ishizaki H, Ito H, Itoh Y, Kawashima N, Kawazoe F, Kishimoto N, Kiuchi K, Kobayashi S, Kohri K, Koizumi H, Kojima Y, Kokeyama K, Kokuyama W, Kotake K, Kozai Y, Kudoh H, Kunimori H, Kuninaka H, Kuroda K, Maeda KI, Matsuhara H, Mino Y, Miyakawa O, Miyoki S, Morimoto MY, Morioka T, Morisawa T, Mukohyama S, Nagano S, Naito I, Nakamura K, Nakano H, Nakao K, Nakasuka S, Nakayama Y, Nishida E, Nishiyama K, Nishizawa A, Niwa Y, Noumi T, Obuchi Y, Ohashi M, Ohishi N, Ohkawa M, Okada N, Onozato K, Oohara K, Sago N, Saijo M, Sakagami M, Sakata S, Sasaki M, Sato T, Shibata M, Shinkai H, Somiya K, Sotani H, Sugiyama N, Suwa Y, Suzuki R, Tagoshi H, Takahashi F, Takahashi K, Takahashi K, Takahashi R, Takahashi R, Takahashi T, Takahashi H, Akiteru T, Takano T, Taniguchi K, Taruya A, Tashiro H, Torii Y, Toyoshima M, Tsujikawa S, Tsunesada Y, Ueda A, Ueda KI, Utashima M, Wakabayashi Y, Yamakawa H, Yamamoto K, Yamazaki T, Yokoyama J, Yoo CM, Yoshida S, Yoshino T. DECIGO: The Japanese space gravitational wave antenna. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/154/1/012040] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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69
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Ishihama K, Koizumi H, Wada T, Iida S, Tanaka S, Yamanishi T, Enomoto A, Kogo M. Evidence of aerosolised floating blood mist during oral surgery. J Hosp Infect 2009; 71:359-64. [DOI: 10.1016/j.jhin.2008.12.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2008] [Accepted: 12/15/2008] [Indexed: 11/25/2022]
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70
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Sato S, Yamada M, Koizumi H, Onozawa Y, Shimokawa N, Kawashima E, Fujii K. Neurophysiological mechanisms of conduction impairment of the auditory nerve during cerebellopontine angle surgery. Clin Neurophysiol 2009; 120:329-35. [DOI: 10.1016/j.clinph.2008.11.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2008] [Revised: 11/10/2008] [Accepted: 11/15/2008] [Indexed: 10/21/2022]
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71
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Watanabe A, Horikoshi T, Uchida M, Koizumi H, Yagishita T, Kinouchi H. Diagnostic value of spinal MR imaging in spontaneous intracranial hypotension syndrome. AJNR Am J Neuroradiol 2008; 30:147-51. [PMID: 18768717 DOI: 10.3174/ajnr.a1277] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Spontaneous intracranial hypotension (SIH) presents with orthostatic headache, and the diagnosis is made on the basis of low CSF pressure and brain MR imaging findings characteristic of the disorder. However, a broad spectrum of symptoms and MR imaging findings of SIH is recognized, and some cases have no typical MR imaging abnormalities. SIH is believed to be caused by CSF leakage from the spinal dural sac, whereas the usefulness of MR imaging of the spine remains unclear. Our aim was to elucidate the diagnostic value of brain and spinal MR imaging MATERIALS AND METHODS The sensitivities for the detection of SIH were retrospectively evaluated in 18 patients with SIH treated in our institutions between January 1998 and August 2007. RESULTS Brain MR imaging detected abnormalities in 15 of the 18 patients (83%): diffuse pachymeningeal enhancement in 15 (83%), descent of the cerebellar tonsil in 13 (72%), brain stem sagging in 13 (72%), enlargement of the pituitary gland in 12 (67%), and subdural fluid collection in 13 (72%). Spinal MR imaging detected abnormalities in 17 of the 18 patients (94%): distention of the epidural veins in 14 (78%), epidural fluid collection on fat-saturated T2-weighted images in 16 (89%), and abnormal visualization of the nerve root sleeve in only 1 (6%). The sensitivity for SIH was 83% for brain MR imaging and 94% for spinal MR imaging. CONCLUSIONS Spinal MR imaging is useful for the diagnosis of SIH, especially in the early stage.
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72
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Kawamura S, Ando M, Nakamura T, Tsubono K, Tanaka T, Funaki I, Seto N, Numata K, Sato S, Ioka K, Kanda N, Takashima T, Agatsuma K, Akutsu T, Akutsu T, Aoyanagi KS, Arai K, Arase Y, Araya A, Asada H, Aso Y, Chiba T, Ebisuzaki T, Enoki M, Eriguchi Y, Fujimoto MK, Fujita R, Fukushima M, Futamase T, Ganzu K, Harada T, Hashimoto T, Hayama K, Hikida W, Himemoto Y, Hirabayashi H, Hiramatsu T, Hong FL, Horisawa H, Hosokawa M, Ichiki K, Ikegami T, Inoue KT, Ishidoshiro K, Ishihara H, Ishikawa T, Ishizaki H, Ito H, Itoh Y, Kamagasako S, Kawashima N, Kawazoe F, Kirihara H, Kishimoto N, Kiuchi K, Kobayashi S, Kohri K, Koizumi H, Kojima Y, Kokeyama K, Kokuyama W, Kotake K, Kozai Y, Kudoh H, Kunimori H, Kuninaka H, Kuroda K, Maeda KI, Matsuhara H, Mino Y, Miyakawa O, Miyoki S, Morimoto MY, Morioka T, Morisawa T, Moriwaki S, Mukohyama S, Musha M, Nagano S, Naito I, Nakagawa N, Nakamura K, Nakano H, Nakao K, Nakasuka S, Nakayama Y, Nishida E, Nishiyama K, Nishizawa A, Niwa Y, Ohashi M, Ohishi N, Ohkawa M, Okutomi A, Onozato K, Oohara K, Sago N, Saijo M, Sakagami M, Sakai SI, Sakata S, Sasaki M, Sato T, Shibata M, Shinkai H, Somiya K, Sotani H, Sugiyama N, Suwa Y, Tagoshi H, Takahashi K, Takahashi K, Takahashi T, Takahashi H, Takahashi R, Takahashi R, Takamori A, Takano T, Taniguchi K, Taruya A, Tashiro H, Tokuda M, Tokunari M, Toyoshima M, Tsujikawa S, Tsunesada Y, Ueda KI, Utashima M, Yamakawa H, Yamamoto K, Yamazaki T, Yokoyama J, Yoo CM, Yoshida S, Yoshino T. The Japanese space gravitational wave antenna - DECIGO. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/122/1/012006] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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73
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Yamanishi T, Kobayashi C, Tsujimoto I, Koizumi H, Miya S, Yokota Y, Okamoto R, Iida S, Aikawa T, Kohara H, Nishio J, Kogo M. An uncommon cleft subtype of unilateral cleft lip and palate. J Dent Res 2008; 87:164-8. [PMID: 18218844 DOI: 10.1177/154405910808700212] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The finding that the vomer plays a crucial role in maxillary growth suggests that the bilateral cleft configuration of unilateral cleft lip and palate (UCLP), in which the vomer is detached from the non-cleft-side secondary hard palate, negatively influences palatal development, and this hypothesis was tested. Sixty persons with complete UCLP, including those with the vomer detached from (n = 30, b-UCLP) and attached to (n = 30, u-UCLP) the secondary hard palate, were analyzed morphologically, with the use of cast models taken at 10 days, 3 mos, and 12 mos of age. The anterio-posterior palatal length at 12 mos of age in those with b-UCLP was significantly shorter than that in those with u-UCLP, by 8.7% (p < 0.05). In addition, palatal width development in the first year in those with b-UCLP was also significantly retarded. These results suggest that the uncommon bilateral cleft subtype in UCLP should be included in the cleft classification.
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74
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Koizumi H, Ishihama K, Enomoto A, Kogo M. Angiomyolipoma of the tongue. Br J Oral Maxillofac Surg 2008; 46:e3-4. [PMID: 17629380 DOI: 10.1016/j.bjoms.2007.05.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2007] [Indexed: 11/30/2022]
Abstract
We present a rare case of angiomyolipoma of the tongue in a 23-year-old man. The clinical appearance was of a small, solitary, well-demarcated, painless mass. The oral angiomyolipoma followed a benign course with no recurrence after excision.
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75
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Koizumi H, Shimizu S, Oka H, Sagiuchi T, Utsuki S, Fujii K. [Retro-odontoid disc herniation extracted using the posterior-lateral transdural approach: case report]. NO SHINKEI GEKA. NEUROLOGICAL SURGERY 2008; 36:59-63. [PMID: 18232322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A 73-year-old woman suffered from neck pain, progressive m tor weakness and sensory disturbance in all extremities. Neuroradiological studies revealed a retro-odontoid mass with posterior compression of the upper cervical spinal cord. Decompression of the mass was performed via a postero-lateral transdural approach, and the patient exhibited marked improvement of the symptoms. Histological examination revealed that the mass was composed of degenerative cartilaginous tissue, consistent with disc material, but the lesion was not neoplastic. Retro-odontoid disc herniation causing cervical myelopathy is very rare. We primarily discuss the surgical management of retro-odontoid disc herniation.
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