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Iida Y, Mori K, Kawahara Y, Fukui I, Yamashita R, Takeda M, Nakano T, Hori S, Suenaga J, Shimizu N, Nomura M, Yamamoto T. "The microcatheter contrast injection technique": A novel technique to detect the proximal end of a thrombus in mechanical thrombectomy. Neuroradiol J 2023:19714009231224427. [PMID: 38151895 DOI: 10.1177/19714009231224427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023] Open
Abstract
Background: An aspiration catheter needs to attach to a thrombus in order to achieve first-pass recanalization by mechanical thrombectomy (MT) for acute ischemic stroke (AIS), particularly that using a direct aspiration first pass technique. The meniscus sign, which is defined as meniscoid contrast opacification indicating the proximal edge of a thrombus, has been suggested to contribute to successful recanalization. In some cases, the meniscus sign is not detected following an injection of contrast medium through a guiding catheter. To precisely identify the location of a thrombus, we use "the microcatheter contrast injection (MCI) technique," which accurately shows the proximal edge of a thrombus. We herein introduce this novel technique and discuss its efficacy in MT. Methods: In cases without the meniscus sign, a microcatheter was advanced to the distal end of contrast opacification, and contrast medium was injected through the microcatheter to detect the meniscus sign. An aspiration catheter was then advanced to the thrombus indicated by the meniscus sign and slowly withdrawn under aspiration. Results: 29 patients underwent MT for AIS using the MCI technique. Even in cases without the meniscus sign on initial angiography, the MCI technique accurately revealed the proximal edge of the thrombus. Moreover, middle cerebral artery occlusion due to atherosclerotic stenosis and displacement of the aspiration catheter and thrombus axis were detected using this technique. Conclusions: The MCI technique may effectively reveal the exact site of a thrombus and increase the success rate of first-pass recanalization.
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Affiliation(s)
- Yu Iida
- Department of Neurosurgery, Yokohama City University, Japan
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Japan
| | - Kentaro Mori
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Japan
| | - Yosuke Kawahara
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Japan
| | - Issei Fukui
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Japan
| | | | - Mutsuki Takeda
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Japan
| | - Tatsu Nakano
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Japan
| | - Satoshi Hori
- Department of Neurosurgery, Yokohama City University, Japan
| | - Jun Suenaga
- Department of Neurosurgery, Yokohama City University, Japan
| | | | - Motohiro Nomura
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Japan
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Iida Y, Mori K, Kawahara Y, Fukui I, Yamashita R, Takeda M, Nakano T, Taguchi H, Nomura M. Angioarchitecture of the hemorrhagic developmental venous anomaly with stenosis of the collecting vein and cavernous malformation: a case report. Br J Neurosurg 2023; 37:1680-1684. [PMID: 34148464 DOI: 10.1080/02688697.2021.1940859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/07/2021] [Indexed: 10/21/2022]
Abstract
We herein report a case of developmental venous anomaly (DVA) with venous congestion caused by stenosis of the collecting vein that presented with intracerebral hemorrhage (ICH). A 74-year-old woman was referred to our hospital a few days after the onset of motor aphasia. Computed tomography (CT) and magnetic resonance imaging (MRI) showed ICH in the left frontal lobe. Angiography revealed DVA in the left frontal lobe in the late venous phase. Stenosis of the collecting vein of DVA at the entrance to the superior sagittal sinus was detected and accompanied by cavernous malformation (CM) beside DVA. Cone-beam CT revealed the absence of the left septal vein and hypoplastic transverse caudate veins. The patient was treated by blood pressure management and no additional neurological symptoms were detected. DVA develops to compensate for the absence of pial or deep venous systems, and generally benign and clinically asymptomatic. However, the outflow restriction of DVA causes chronic venous hypertension and the formation of CM. These abnormalities are considered to occur during post-natal life and may result in ICH. The risk of hemorrhage needs to be considered in cases of DVA with restricted venous outflow or CM.
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Affiliation(s)
- Yu Iida
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Kentaro Mori
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yosuke Kawahara
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Issei Fukui
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Ryotaro Yamashita
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Mutsuki Takeda
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Tatsu Nakano
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Hiroki Taguchi
- Department of Neurosurgery, Taguchi Neurosurgery Clinic, Yokohama, Japan
| | - Motohiro Nomura
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
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Madhavan SS, Roa Diaz S, Peralta S, Nomura M, King CD, Lin A, Bhaumik D, Shah S, Blade T, Gray W, Chamoli M, Eap B, Panda O, Diaz D, Garcia TY, Stubbs BJ, Lithgow GJ, Schilling B, Verdin E, Chaudhuri AR, Newman JC. β-hydroxybutyrate is a metabolic regulator of proteostasis in the aged and Alzheimer disease brain. bioRxiv 2023:2023.07.03.547547. [PMID: 37461525 PMCID: PMC10349929 DOI: 10.1101/2023.07.03.547547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Loss of proteostasis is a hallmark of aging and Alzheimer disease (AD). Here, we identify β-hydroxybutyrate (βHB), a ketone body, as a regulator of protein solubility in the aging brain. βHB is a small molecule metabolite which primarily provides an oxidative substrate for ATP during hypoglycemic conditions, and also regulates other cellular processes through covalent and noncovalent protein interactions. We demonstrate βHB-induced protein insolubility across in vitro, ex vivo, and in vivo mouse systems. This activity is shared by select structurally similar metabolites, is not dependent on covalent protein modification, pH, or solute load, and is observable in mouse brain in vivo after delivery of a ketone ester. Furthermore, this phenotype is selective for pathological proteins such as amyloid-β, and exogenous βHB ameliorates pathology in nematode models of amyloid-β aggregation toxicity. We have generated a comprehensive atlas of the βHB-induced protein insolublome ex vivo and in vivo using mass spectrometry proteomics, and have identified common protein domains within βHB target sequences. Finally, we show enrichment of neurodegeneration-related proteins among βHB targets and the clearance of these targets from mouse brain, likely via βHB-induced autophagy. Overall, these data indicate a new metabolically regulated mechanism of proteostasis relevant to aging and AD.
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Affiliation(s)
- S S Madhavan
- Buck Institute for Research on Aging, Novato, CA, USA
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
- Department of Geriatrics, University of California San Francisco, San Francisco, CA, USA
| | - S Roa Diaz
- Buck Institute for Research on Aging, Novato, CA, USA
- Department of Geriatrics, University of California San Francisco, San Francisco, CA, USA
| | - S Peralta
- Buck Institute for Research on Aging, Novato, CA, USA
| | - M Nomura
- Buck Institute for Research on Aging, Novato, CA, USA
| | - C D King
- Buck Institute for Research on Aging, Novato, CA, USA
| | - A Lin
- Buck Institute for Research on Aging, Novato, CA, USA
| | - D Bhaumik
- Buck Institute for Research on Aging, Novato, CA, USA
| | - S Shah
- Buck Institute for Research on Aging, Novato, CA, USA
| | - T Blade
- Buck Institute for Research on Aging, Novato, CA, USA
| | - W Gray
- Buck Institute for Research on Aging, Novato, CA, USA
| | - M Chamoli
- Buck Institute for Research on Aging, Novato, CA, USA
| | - B Eap
- Buck Institute for Research on Aging, Novato, CA, USA
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - O Panda
- Buck Institute for Research on Aging, Novato, CA, USA
| | - D Diaz
- Buck Institute for Research on Aging, Novato, CA, USA
| | - T Y Garcia
- Buck Institute for Research on Aging, Novato, CA, USA
- Department of Geriatrics, University of California San Francisco, San Francisco, CA, USA
| | - B J Stubbs
- Buck Institute for Research on Aging, Novato, CA, USA
| | - G J Lithgow
- Buck Institute for Research on Aging, Novato, CA, USA
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - B Schilling
- Buck Institute for Research on Aging, Novato, CA, USA
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - E Verdin
- Buck Institute for Research on Aging, Novato, CA, USA
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - A R Chaudhuri
- Buck Institute for Research on Aging, Novato, CA, USA
| | - J C Newman
- Buck Institute for Research on Aging, Novato, CA, USA
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
- Department of Geriatrics, University of California San Francisco, San Francisco, CA, USA
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Nomura M, Okamura H, Horie Y, Yap CK, Emmanouil C, Uwai S, Kawai H. Effects of antifouling compounds on the growth of macroalgae Undaria pinnatifida. Chemosphere 2023; 312:137141. [PMID: 36343734 DOI: 10.1016/j.chemosphere.2022.137141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Seaweeds are some of the principal primary producers of marine environments, and they are important ecological elements of coastal ecosystems. The effects of harmful chemicals on seaweeds may adversely affect coastal ecosystems, hence we aimed to develop a new phytotoxicity test using the gametophytes of a common temperate kelp species, Undaria pinnatifida (KU-1630), for the widely used antifouling chemical substances Cybutryne, Diuron, Cu2+, and Zn2+. Toxicity to gametophytes of U. pinnatifida was assessed by comparing the relative growth rate (RGR) at the logarithmic growth phase. Fragmentation method, initial algal biomass, photon irradiance, and adhesive period were investigated for developing optimal test conditions. Cybutryne exposure tests were performed with seven replicates and control, the RGR ranging from 0.17 to 0.19, while mean 7-day EC50 and no observed effect concentration (NOEC) were 5.1 μg/L and 1.8 μg/L, respectively. The 7-day EC50 for other antifoulants was 14 μg/L for Diuron, 17 μg/L for Cu2+, and 1500 μg/L for Zn2+. This test method demonstrated high sensitivity and reproducibility, and it may be added to the routine methods used for toxicity evaluation of hazardous chemicals.
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Affiliation(s)
- M Nomura
- Graduate School of Maritime Sciences, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan
| | - H Okamura
- Research Center for Inland Seas, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan.
| | - Y Horie
- Research Center for Inland Seas, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan
| | - C K Yap
- Department of Biology, Faculty of Science, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - C Emmanouil
- School of Spatial Planning and Development, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - S Uwai
- Research Center for Inland Seas, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan
| | - H Kawai
- Research Center for Inland Seas, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe, 658-0022, Japan
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Sakasegawa H, Nomura M, Sawayama K, Nakayama T, Yaita Y, Yonekawa H, Kobayashi N, Arima T, Hiyama T, Murata E. Liquid decontamination using acidic electrolyzed water for various uranium-contaminated steel surfaces in dismantled centrifuge. Progress in Nuclear Energy 2022. [DOI: 10.1016/j.pnucene.2022.104396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tsuchiya A, Tsukiyama A, Matsumoto S, Uekusa T, Abe H, Fukui I, Iida Y, Mori K, Kawahara Y, Tamase A, Abe K, Yamashita R, Takeda M, Nakano T, Nomura M. Cerebral Infarction Due to Occlusion of Main Trunk of Middle Cerebral Artery in Patient with Accessory Middle Cerebral Artery. Asian J Neurosurg 2022; 17:495-499. [PMID: 36398188 PMCID: PMC9665973 DOI: 10.1055/s-0042-1757215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The existence of an accessory middle cerebral artery (AMCA) usually has no pathological significance. Three patients developed cerebral infarction due to thromboembolic occlusion of the main trunk of the middle cerebral artery (MCA). In these patients, AMCA originating from the anterior cerebral artery was intact, and ran to the lateral side along the main MCA. Emergency endovascular treatment to remove the thrombus in the main MCA was performed, and MCA was recanalized. In one patient, the main MCA re-occluded and cerebral infarction developed on the next day. The diameter of AMCA is commonly smaller than that of the main MCA. Therefore, volume of ischemic region depends on the collateral blood flow to the left MCA territory by AMCA. Once an anomalous MCA is detected in a patient with cerebral infarction involving the MCA territory, close examinations to assess the anatomy of both the main and anomalous MCA are mandatory.
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Affiliation(s)
| | | | | | | | - Hiroyuki Abe
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Issei Fukui
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yu Iida
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Kentaro Mori
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yosuke Kawahara
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Akira Tamase
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Katsuya Abe
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Ryotaro Yamashita
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Mutsuki Takeda
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Tatsu Nakano
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Motohiro Nomura
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan,Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan,Address for correspondence Motohiro Nomura, MD, PhD Department of Neurosurgery, Yokohama Sakae Kyosai Hospital132 Katsura-cho, Sakae-ku, Yokohama, 247-8581Japan
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Kidoguchi T, Fukui I, Abe H, Mori K, Tamase A, Yamashita R, Takeda M, Nakano T, Nomura M. Carotid artery stenting for spontaneous internal carotid artery dissection presenting with hypoglossal nerve palsy: A case report. Surg Neurol Int 2022; 13:225. [PMID: 35673643 PMCID: PMC9168298 DOI: 10.25259/sni_184_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/07/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Some studies reported cases of internal carotid artery (ICA) dissection (ICAD) that was treated by carotid artery stenting (CAS). Symptoms of ICAD resulting from the lower cranial nerve palsy are rare and the treatment strategy is not clearly defined. We report a patient with ICAD showing hypoglossal nerve palsy alone that was treated by CAS. Case Description: A 47-year-old man presented with headache, dysphagia, dysarthria, and tongue deviation to the left. He had no history of trauma nor any other significant medical history. Axial T2-CUBE MRI and MRA showed dissection of the left ICA accompanied with a false lumen. These findings indicated that direct compression by the false lumen was the cause of hypoglossal nerve palsy. Although medical treatment was continued, symptoms were not improved. Therefore, CAS was performed to thrombose the false lumen and decompress the hypoglossal nerve. His symptoms gradually improved after CAS and angiography performed at month 6 showed well-dilated ICA and disappearance of false lumen. Conclusion: CAS may be an effective treatment for the lower cranial nerve palsy caused by compression by a false lumen of ICAD.
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Affiliation(s)
- Takeshi Kidoguchi
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Issei Fukui
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Hiroyuki Abe
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Kentaro Mori
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Akira Tamase
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Ryotaro Yamashita
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Mutsuki Takeda
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Tatsu Nakano
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Motohiro Nomura
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
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Ando T, Nakashima K, Yoshita H, Sakumura M, Nomura M, Muto M, Fujii H, Horie Y, Takeda H, Yoshii T, Tahara Y, Katada C, Yoshimura K, Ishikawa H, Hosokawa A. P-108 A phase II study of weekly paclitaxel in patients with advanced or recurrent esophageal cancer who had previously received docetaxel-containing chemotherapy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Morita K, Tamase A, Abe H, Mori K, Fukui I, Yamashita R, Takeda M, Nakano T, Shima H, Nomura M. Bow hunter’s syndrome treated by anterior decompression with fusion: A case report. Surg Neurol Int 2022; 13:115. [PMID: 35509537 PMCID: PMC9062892 DOI: 10.25259/sni_172_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/05/2022] [Indexed: 11/04/2022] Open
Abstract
Background:
Bow hunter’s syndrome (BHS) is a rare condition induced by occlusion or compression of the vertebral artery (VA) during head movement or rotation. Here, we report a patient with BHS effectively treated with an anterior cervical discectomy and fusion (ACDF).
Case Description:
A 75-year-old male experienced recurrent embolic strokes to the posterior circulation. This was attributed angiographically to transient stenosis of the right VA due to a right-sided C5-C6 osteophyte when the head was rotated to the right; the stenosis was improved when the patient rotated his head to the left. The patient successfully underwent a C5-C6 ACDF for removal of the right-sided lateral osteophyte which resulted in no further transient right-sided VA occlusion.
Conclusion:
Following a C5-C6 ACDF for removal of a right lateral osteophyte, a 75-year-old male’s intermittent right-sided VA occlusion responsible for multiple posterior circulation emboli was relieved.
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Affiliation(s)
- Kazuya Morita
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama,
| | - Akira Tamase
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama,
| | - Hiroyuki Abe
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama,
| | - Kentaro Mori
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama,
| | - Issei Fukui
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama,
| | | | - Mutsuki Takeda
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama,
| | - Tatsu Nakano
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama,
| | - Hiroshi Shima
- Department of Neurosurgery, Shima Neurosurgical Orthopedic Clinic, Kawasaki, Kanagawa, Japan
| | - Motohiro Nomura
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama,
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Yoneda T, Tanaka T, Bando K, Choi B, Chang R, Fujiwara Y, Gupta P, Ham D, Karasawa H, Kuwae S, Lee S, Moriya Y, Takakura K, Tsurumaki Y, Watanabe T, Yoshimura K, Nomura M. Nonclinical and quality assessment of cell therapy products: Report on the 4th Asia Partnership Conference of Regenerative Medicine, April 15, 2021. Cytotherapy 2022; 24:892-904. [DOI: 10.1016/j.jcyt.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/17/2022] [Accepted: 01/21/2022] [Indexed: 11/03/2022]
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Miyazawa Y, Nomura M, Syuto T, Seiji A, Sekine Y, Koike H, Hiroshi M, Suzuki K. The relationship between adherent perinephric fat and sex hormone levels in serum and perinephric fat tissue of patients treated by robotic assisted partial nephrectomy. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00298-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Nakamura Y, Namikawa K, Yoshikawa S, Kiniwa Y, Maekawa T, Yamasaki O, Isei T, Matsushita S, Nomura M, Nakai Y, Fukushima S, Saito S, Takenouchi T, Tanaka R, Kato H, Otsuka A, Matsuya T, Baba N, Nagase K, Inozume T, Fujimoto N, Kuwatsuka Y, Onishi M, Kaneko T, Onuma T, Umeda Y, Ogata D, Takahashi A, Otsuka M, Teramoto Y, Yamazaki N. Anti-PD-1 antibody monotherapy versus anti-PD-1 plus anti-CTLA-4 combination therapy as first-line immunotherapy in unresectable or metastatic mucosal melanoma: a retrospective, multicenter study of 329 Japanese cases (JMAC study). ESMO Open 2021; 6:100325. [PMID: 34839104 PMCID: PMC8633880 DOI: 10.1016/j.esmoop.2021.100325] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 10/29/2021] [Indexed: 01/14/2023] Open
Abstract
Background Anti-programmed cell death protein 1 (PD-1) antibody monotherapy (PD1) has led to favorable responses in advanced non-acral cutaneous melanoma among Caucasian populations; however, recent studies suggest that this therapy has limited efficacy in mucosal melanoma (MCM). Thus, advanced MCM patients are candidates for PD1 plus anti-cytotoxic T lymphocyte-associated antigen-4 (CTLA-4) combination therapy (PD1 + CTLA4). Data on the efficacy of immunotherapy in MCM, however, are limited. We aimed to compare the efficacies of PD1 and PD1 + CTLA4 in Japanese advanced MCM patients. Patients and methods We retrospectively assessed advanced MCM patients treated with PD1 or PD1 + CTLA4 at 24 Japanese institutions. Patient baseline characteristics, clinical responses (RECIST), progression-free survival (PFS), and overall survival (OS) were estimated using Kaplan–Meier analysis, and toxicity was assessed to estimate the efficacy and safety of PD1 and PD1 + CTLA4. Results Altogether, 329 patients with advanced MCM were included in this study. PD1 and PD1 + CTLA4 were used in 263 and 66 patients, respectively. Baseline characteristics were similar between both treatment groups, except for age (median age 71 versus 65 years; P < 0.001). No significant differences were observed between the PD1 and PD1 + CTLA4 groups with respect to objective response rate (26% versus 29%; P = 0.26) or PFS and OS (median PFS 5.9 months versus 6.8 months; P = 0.55, median OS 20.4 months versus 20.1 months; P = 0.55). Cox multivariate survival analysis revealed that PD1 + CTLA4 did not prolong PFS and OS (PFS: hazard ratio 0.83, 95% confidence interval 0.58-1.19, P = 0.30; OS: HR 0.89, 95% confidence interval 0.57-1.38, P = 0.59). The rate of ≥grade 3 immune-related adverse events was higher in the PD1 + CTLA4 group than in the PD1 group (53% versus 17%; P < 0.001). Conclusions First-line PD1 + CTLA4 demonstrated comparable clinical efficacy to PD1 in Japanese MCM patients, but with a higher rate of immune-related adverse events. Anti-PD-1 plus anti-CTLA-4 antibody therapy (PD1 + CTLA4) is an option for patients with advanced mucosal melanoma (MCM). Data on the efficacy of PD1 + CTLA4 compared with PD-1 monotherapy (PD1) for MCM, however, are limited. We retrospectively analyzed data from 329 Japanese patients with advanced MCM treated with PD1 or PD1 + CTLA4. No significant differences in objective response rate, progression-free survival, or overall survival were observed. Immune-related adverse events resulting in treatment cessation were higher in the PD1 + CTLA4 group.
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Affiliation(s)
- Y Nakamura
- Department of Skin Oncology/Dermatology, Saitama Medical University International Medical Center, Saitama, Japan.
| | - K Namikawa
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - S Yoshikawa
- Department of Dermatology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Y Kiniwa
- Department of Dermatology, Shinshu University, Matsumoto, Japan
| | - T Maekawa
- Department of Dermatology, Jichi Medical University, Tochigi, Japan
| | - O Yamasaki
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - T Isei
- Department of Dermatologic Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - S Matsushita
- Department of Dermato-Oncology/Dermatology, National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - M Nomura
- Department of Clinical Oncology, Kyoto University, Kyoto, Japan
| | - Y Nakai
- Department of Dermatology, Mie University, Tsu, Japan
| | - S Fukushima
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - S Saito
- Department of Dermatology, Gunma University, Maebashi, Japan
| | - T Takenouchi
- Department of Dermatology, Niigata Cancer Center, Niigata, Japan
| | - R Tanaka
- Department of Dermatology, Kawasaki Medical School, Kurashiki, Japan
| | - H Kato
- Department of Geriatric and Environmental Dermatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - A Otsuka
- Department of Dermatology, Kyoto University, Kyoto, Japan
| | - T Matsuya
- Department of Dermatology, Asahikawa Medical University, Asahikawa, Japan
| | - N Baba
- Department of Dermatology, Fukui University, Fukui, Japan
| | - K Nagase
- Division of Dermatology, Department of Internal Medicine, Saga University, Saga, Japan
| | - T Inozume
- Department of Dermatology, Chiba University, Chiba, Japan
| | - N Fujimoto
- Department of Dermatology, Shiga University of Medical Science, Otsu, Japan
| | - Y Kuwatsuka
- Department of Dermatology, Nagasaki University, Nagasaki, Japan
| | - M Onishi
- Department of Dermatology, Iwate Medical University, Morioka, Japan
| | - T Kaneko
- Department of Dermatology, Juntendo University Urayasu Hospital, Urayasu, Japan
| | - T Onuma
- Department of Dermatology, Yamanashi University, Kofu, Japan
| | - Y Umeda
- Department of Skin Oncology/Dermatology, Saitama Medical University International Medical Center, Saitama, Japan; Department of Dermatology, Kawasaki Medical School, Kurashiki, Japan
| | - D Ogata
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - A Takahashi
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - M Otsuka
- Department of Dermatology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Y Teramoto
- Department of Skin Oncology/Dermatology, Saitama Medical University International Medical Center, Saitama, Japan
| | - N Yamazaki
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
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13
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Iida Y, Mori K, Kawahara Y, Fukui I, Abe K, Takeda M, Nakano T, Yanagimoto K, Nomura M. Characteristics and Management of Ruptured Aneurysms Originating from the Penetrating Artery of the Distal Middle Cerebral Artery. NMC Case Rep J 2021; 8:7-12. [PMID: 34012742 PMCID: PMC8116915 DOI: 10.2176/nmccrj.cr.2020-0004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 04/09/2020] [Indexed: 11/20/2022] Open
Abstract
We report a rare case of an aneurysm originating from the penetrating artery of the distal middle cerebral artery (MCA). A 76-year-old man without a notable past history presented with sudden-onset severe headache, left hemiparesis, and a decreased level of consciousness. Computed tomography (CT) revealed subarachnoid hemorrhage (SAH) with intracerebral hemorrhage (ICH) in the right temporal lobe extending into the ventricle. Contrast-enhanced CT (CE-CT) demonstrated a focus of contrast enhancement (CE) adjacent to the hematoma in the right frontal lobe. An aneurysm fed by a penetrating artery branching off from the right distal MCA was found on angiography. The patient underwent emergency resection of the aneurysm and hematoma evacuation. Histological analysis revealed that arterial dissection may be an associated factor in the pathogenesis of this peripheral aneurysm formation. A focus of CE within or adjacent to the hematoma may be useful for diagnosing this peripheral aneurysm. ICH can result in a life-threatening situation. Therefore, microsurgery may be the first treatment choice for aneurysms in this location.
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Affiliation(s)
- Yu Iida
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Kentaro Mori
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Yosuke Kawahara
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Issei Fukui
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Katsuya Abe
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Mutsuki Takeda
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Tatsu Nakano
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Kunio Yanagimoto
- Department of Pathology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Motohiro Nomura
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
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14
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Ohyanagi F, Nomura M, Shiihara J, Mizushina Y, Ohta H, Yamaguchi Y. P37.08 OncomineTM Dx Target Test Companion Diagnostic System for Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Iida Y, Mori K, Kawahara Y, Fukui I, Abe K, Takeda M, Nakano T, Taguchi H, Nomura M. Hemifacial spasm caused by vertebral artery aneurysm treated by endovascular coil embolization. Surg Neurol Int 2020; 11:431. [PMID: 33365193 PMCID: PMC7749930 DOI: 10.25259/sni_564_2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 11/18/2020] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Hemifacial spasm (HFS) caused by vertebral artery (VA) aneurysms is rare. Several cases of HFS caused by VA aneurysms treated by endovascular parent artery occlusion (PAO) have been reported. Recently, we treated a rare case of HFS caused by a saccular VA aneurysm at the bifurcation of the posterior inferior cerebellar artery (PICA), which was successfully treated by endovascular coil embolization, preserving the parent artery, and PICA. We discuss endovascular treatment for HFS induced by VA aneurysms with a literature review. CASE DESCRIPTION A 59-year-old man presented with the left HFS persisting for 2 months. Magnetic resonance imaging revealed a left saccular VA-PICA aneurysm and demonstrated that a left facial nerve was compressed by the aneurysm at the root exit zone. Angiography revealed that the PICA was branching from the aneurysm neck. Endovascular coil embolization was performed using the balloon remodeling technique to preserve the left VA and PICA. HFS disappeared after treatment. CONCLUSION Although microvascular decompression was commonly accepted for the standard treatment of HFS, coil embolization of aneurysms without PAO may be an effective treatment for HFS caused by VA aneurysms.
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Affiliation(s)
- Yu Iida
- Department of Neurosurgery Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Kentaro Mori
- Department of Neurosurgery Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Yosuke Kawahara
- Department of Neurosurgery Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Issei Fukui
- Department of Neurosurgery Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Katsuya Abe
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Mutsuki Takeda
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Tastu Nakano
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Hiroki Taguchi
- Department of Neurosurgery, Taguchi Neurosurgery Clinic, Yokohama, Kanagawa, Japan
| | - Motohiro Nomura
- Department of Neurosurgery Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
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16
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Wu Y, Ordonez-Miranda J, Gluchko S, Anufriev R, Meneses DDS, Del Campo L, Volz S, Nomura M. Enhanced thermal conduction by surface phonon-polaritons. Sci Adv 2020; 6:eabb4461. [PMID: 32998899 PMCID: PMC7527230 DOI: 10.1126/sciadv.abb4461] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/04/2020] [Indexed: 05/27/2023]
Abstract
Improving heat dissipation in increasingly miniature microelectronic devices is a serious challenge, as the thermal conduction in nanostructures is markedly reduced by increasingly frequent scattering of phonons on the surface. However, the surface could become an additional heat dissipation channel if phonons couple with photons forming hybrid surface quasiparticles called surface phonon-polaritons (SPhPs). Here, we experimentally demonstrate the formation of SPhPs on the surface of SiN nanomembranes and subsequent enhancement of heat conduction. Our measurements show that the in-plane thermal conductivity of membranes thinner than 50 nm doubles up as the temperature rises from 300 to 800 kelvin, while thicker membranes show a monotonic decrease. Our theoretical analysis shows that these thickness and temperature dependencies are fingerprints of SPhP contribution to heat conduction. The demonstrated thermal transport by SPhPs can be useful as a previously unidentified channel of heat dissipation in a variety of fields including microelectronics and silicon photonics.
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Affiliation(s)
- Y Wu
- Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan.
| | - J Ordonez-Miranda
- Institut Pprime, CNRS, Université de Poitiers, ISAE-ENSMA, F-86962 Futuroscope Chasseneuil, France
| | - S Gluchko
- Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan
- Laboratory for Integrated Micro Mechatronic Systems/National Center for Scientific Research-Institute of Industrial Science (LIMMS/CNRS-IIS), The University of Tokyo, Tokyo 153-8505, Japan
| | - R Anufriev
- Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan
| | | | - L Del Campo
- CEMHTI, UPR3079, CNRS, Université Orléans, F-45071 Orléans, France
| | - S Volz
- Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan.
- Laboratory for Integrated Micro Mechatronic Systems/National Center for Scientific Research-Institute of Industrial Science (LIMMS/CNRS-IIS), The University of Tokyo, Tokyo 153-8505, Japan
| | - M Nomura
- Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan.
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17
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Sekine Y, Kotani K, Oka D, Nakayama H, Miyazawa Y, Syuto T, Arai S, Nomura M, Koike H, Matsui H, Shibata Y, Suzuki K. Usefulness of presepsin for detecting sepsis in urinary-tract infections. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33449-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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18
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Tsukiyama A, Nozaki T, Matsumoto S, Uekusa T, Tsuchiya A, Nomura M. Morphological Change of Cerebral Aneurysm with Possible Pseudoaneurysm at A2/3 of the Anterior Cerebral Artery on Three-dimensional Computed Tomographic Angiography. Asian J Neurosurg 2020; 15:394-396. [PMID: 32656139 PMCID: PMC7335138 DOI: 10.4103/ajns.ajns_23_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/15/2020] [Accepted: 04/18/2020] [Indexed: 11/13/2022] Open
Abstract
Intracranial pseudoaneurysm formation due to a ruptured nontraumatic aneurysm is rare. We describe a case of ruptured aneurysm, which showed morphological change on radiological examinations. An 83-year-old woman developed subarachnoid hemorrhage (SAH) with ventricular rupture and intracerebral hematoma in the corpus callosum. Contrast-enhanced computed tomography (CE-CT) demonstrated an aneurysm at the right A2/3 junction of the anterior cerebral artery. CE-CT repeated 17 h after the initial one showed shortening of the lesion on both three-dimensional and raw images. The aneurysm was surgically clipped. In cases of SAH with a hematoma or thick SAH, there is a possibility that a pseudoaneurysm will form at the tip of the true aneurysm in an adjacent thrombus or existence of intraluminal thrombus. The morphology may change during the period between initial radiological evaluation and the operation in these cases. We should be aware that the intraoperative findings or subsequent radiological findings might be different from those observed on preoperative radiological examinations.
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Affiliation(s)
- Atsushi Tsukiyama
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan.,Department of Neurological Surgery, Nippon Medical School, Tokyo, Japan
| | - Toshiki Nozaki
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan.,Department of Neurological Surgery, Nippon Medical School, Tokyo, Japan
| | - Shutaro Matsumoto
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan.,Department of Neurosurgery, Yokohama City University, Yokohama, Japan
| | | | | | - Motohiro Nomura
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan.,Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
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19
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Ikeda T, Aida M, Yoshida Y, Matsumoto S, Tanaka M, Nakayama J, Nagao Y, Nakata R, Oki E, Akahoshi T, Okano S, Nomura M, Hashizume M, Maehara Y. Alteration in faecal bile acids, gut microbial composition and diversity after laparoscopic sleeve gastrectomy. Br J Surg 2020; 107:1673-1685. [DOI: 10.1002/bjs.11654] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/02/2020] [Accepted: 04/06/2020] [Indexed: 12/20/2022]
Abstract
Abstract
Background
Laparoscopic sleeve gastrectomy (LSG) is a well established treatment for severe obesity and type 2 diabetes. Although the gut microbiota is linked to the efficacy of LSG, the underlying mechanisms remain elusive. The effect of LSG for morbid obesity on the gut microbiota and bile acids was assessed here.
Methods
Severely obese subjects who were candidates for LSG were included and followed until 6 months after surgery. The composition and abundance of the microbiota and bile acids in faeces were assessed by 16S ribosomal RNA sequencing, quantitative PCR and liquid chromatography–mass spectrometry.
Results
In total, 28 patients with a mean(s.d.) BMI of 44·2(6·6) kg/m2 were enrolled. These patients had achieved excess weight loss of 53·2(19·0) per cent and showed improvement in metabolic diseases by 6 months after LSG, accompanied by an alteration in the faecal microbial community. The increase in α-diversity and abundance of specific taxa, such as Rikenellaceae and Christensenellaceae, was strongly associated with reduced faecal bile acid levels. These changes had a significant positive association with excess weight loss and metabolic alterations. However, the total number of faecal bacteria was lower in patients before (mean(s.d.) 10·26(0·36) log10 cells per g faeces) and after (10·39(0·29) log10 cells per g faeces) operation than in healthy subjects (10·83(0·27) log10 cells per g faeces).
Conclusion
LSG is associated with a reduction in faecal bile acids and greater abundance of specific bacterial taxa and α-diversity that may contribute to the metabolic changes.
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Affiliation(s)
- T Ikeda
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
- Department of Oral Medicine Research Centre, Fukuoka, Japan
| | - M Aida
- Yakult Central Institute, Tokyo, Japan
| | - Y Yoshida
- Yakult Central Institute, Tokyo, Japan
| | | | - M Tanaka
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Fukuoka, Japan
| | - J Nakayama
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Fukuoka, Japan
| | - Y Nagao
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - R Nakata
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - E Oki
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Akahoshi
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - S Okano
- Department of Pathology, Fukuoka Dental College, Fukuoka, Japan
| | - M Nomura
- Department of Medicine and Bioregulatory Science, Fukuoka, Japan
| | - M Hashizume
- Department of Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Fukuoka, Japan
| | - Y Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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20
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Ishikawa M, Nomura M, Miyoshi M, Nishi N, Yokoyama T, Miura H. A self-reported measurement scale on a potential component of competency in the healthcare staff engaged in the prevention and control of non-communicable disease in Fiji. BMC Health Serv Res 2019; 19:838. [PMID: 31727066 PMCID: PMC6857309 DOI: 10.1186/s12913-019-4695-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 10/30/2019] [Indexed: 11/10/2022] Open
Abstract
Background According to the World Health Organization, an estimated 80% or more deaths in Pacific island countries, including Fiji, were related to non-communicable diseases (NCDs). Although competency-based approaches have been effective for developing healthcare workers’ capabilities, there are only a few reports on competency scales of healthcare workers for NCD prevention. We aimed to develop a self-reported measurement scale on a potential component of competency in the healthcare staff engaged in the prevention and control of NCDs in Fiji. Methods There were 378 Ministry of Health and Medical Services staff members working on NCD prevention and control in Fiji included in this study, which was a cross-sectional survey of social factors, working situation factors, and competency. Exploratory factor analysis was conducted to assess potential competency components, whereas Cronbach’s α coefficient and analysis of variance were used to assess the validity and reliability of the scale items, respectively. Multivariate regression analyses were conducted to analyze the respondents’ factor scores relative to social status and work situations. Results The factor analysis revealed 16 items that identified competency in four work types: 1) work management, 2) monitoring and evaluation, 3) community partnership, and 4) community diagnosis. The monitoring and evaluation roles were related to ethnic background, community partnership was related to religion, and community diagnosis was related to academic qualifications. Conclusions Based on the results, we developed a competency scale for the four work types. This scale can help healthcare workers engage in better management of residents with NCDs in Fiji.
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Affiliation(s)
- M Ishikawa
- Department of Health Promotion, National Institute of Public Health, 2-3-6 Minami, Wako, Saitama, 351-0197, Japan.
| | - M Nomura
- Department of International Health and Collaboration, National Institute of Public Health, 3-6 Wako, Saitama, 351-0197, Japan
| | - M Miyoshi
- Department of Nutrition, Faculty of Health Sciences, Aomori University of Health and Welfare, 58-1, Mase, Hamadate, Aomori, 030-8505, Japan
| | - N Nishi
- International Center for Nutrition and Information, National Institutes of Biomedical Innovation, Health and Nutrition, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8636, Japan
| | - T Yokoyama
- Department of Health Promotion, National Institute of Public Health, 2-3-6 Minami, Wako, Saitama, 351-0197, Japan
| | - H Miura
- Department of International Health and Collaboration, National Institute of Public Health, 3-6 Wako, Saitama, 351-0197, Japan
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21
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Tozaki T, Kusano K, Ishikawa Y, Kushiro A, Nomura M, Kikuchi M, Kakoi H, Hirota K, Miyake T, Hill EW, Nagata S. A candidate-SNP retrospective cohort study for fracture risk in Japanese Thoroughbred racehorses. Anim Genet 2019; 51:43-50. [PMID: 31612520 DOI: 10.1111/age.12866] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2019] [Indexed: 11/30/2022]
Abstract
Fractures are medical conditions that compromise the athletic potential of horses and/or the safety of jockeys. Therefore, the reduction of fracture risk is an important horse and human welfare issue. The present study used molecular genetic approaches to determine the effect of genetic risk for fracture at four candidate SNPs spanning the myostatin (MSTN) gene on horse chromosome 18. Among the 3706 Japanese Thoroughbred racehorses, 1089 (29.4%) had experienced fractures in their athletic life, indicating the common occurrence of this injury in Thoroughbreds. In the case/control association study, fractures of the carpus (carpal bones and distal radius) were statistically associated with g.65809482T/C (P = 1.17 x 10-8 ), g.65868604G/T (P = 2.66 x 10-9 ), and g.66493737C/T (P = 6.41 x 10-8 ). In the retrospective cohort study using 1710 racehorses born in 2000, the relative risk (RR) was highest for male horses at g.65868604G/T, based on the dominant allele risk model (RR = 2.251, 95% confidence interval 1.407-3.604, P = 0.00041), and for female horses at g.65868604G/T, based on the recessive allele risk model (RR = 2.313, 95% confidence interval 1.380-3.877, P = 0.00163). Considering the association of these SNPs with racing performance traits such as speed, these genotypes may affect the occurrence of carpus fractures in Japanese Thoroughbred racehorses as a consequence of the non-genetic influence of the genotype on the distance and/or intensity of racing and training. The genetic information presented here may contribute to the development of strategic training programs and racing plans for racehorses that improve their health and welfare.
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Affiliation(s)
- T Tozaki
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - K Kusano
- Equine Department, Japan Racing Association, Minato, Tokyo, 106-8401, Japan
| | - Y Ishikawa
- Racehorse Hospital Ritto Training Center, Japan Racing Association, Ritto, Shiga, 520-3005, Japan
| | - A Kushiro
- Racehorse Hospital Miho Training Center, Japan Racing Association, Miho, Ibaraki, 300-0493, Japan
| | - M Nomura
- Racehorse Hospital Ritto Training Center, Japan Racing Association, Ritto, Shiga, 520-3005, Japan
| | - M Kikuchi
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - H Kakoi
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - K Hirota
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
| | - T Miyake
- Comparative Agricultural Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - E W Hill
- School of Agriculture and Food Science, University College Dublin, Dublin, 4, Ireland.,Plusvital Ltd, The Highline, Dun Laoghaire Industrial Estate, Pottery Road, Dun Laoghaire, Co Dublin, Ireland
| | - S Nagata
- Genetic Analysis Department, Laboratory of Racing Chemistry, 1731-2 Tsurutamachi, Utsunomiya, Tochigi, 320-0851, Japan
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22
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Nomura M, Nagatomo R, Inoue K, Doi K, Shimizu J, Baba K, Saito T, Matsumoto S, Muto M. Association of SCFA in gut microbiome and clinical response in solid cancer patients treated with andi-PD-1 antibody. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.074] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Takeda M, Shirokane K, Baba E, Tsuchiya A, Nomura M. De novo Aneurysm Formation on Internal Carotid Artery at Origin of Thick Posterior Communicating Artery: 7 Years after Transient Occlusion of Contralateral Internal Carotid Artery. Asian J Neurosurg 2019; 14:571-574. [PMID: 31143286 PMCID: PMC6516001 DOI: 10.4103/ajns.ajns_261_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The incidence of de novo intracranial aneurysm formation has been reported to be 0.84% per year. It is rare for de novo aneurysm formation to be observed on serial radiological examinations. A 64-year-old male with a history of right internal carotid artery (ICA) occlusion 7 years ago had subarachnoid hemorrhage (SAH) due to a ruptured left ICA aneurysm at the bifurcation of the posterior communicating artery (PComA). At the time of ICA occlusion, the left PComA was thick, about 3.0 mm in diameter, and no aneurysm was detected on radiological examinations. Thirty-eight months later, a small aneurysm was detected on the left ICA on magnetic resonance angiography (MRA). At the onset of SAH, the aneurysm was larger than that observed on the previous MRA. Left frontotemporal craniotomy was performed, and the aneurysm was clipped. A thick PComA might contribute to the development of an aneurysm at its origin due to hemodynamic stress. Persistent hemodynamic stress may cause enlargement of an aneurysm in 4 years and its subsequent rupture. In patient with a thick PComA, close observation is necessary to screen for de novo formation of a cerebral aneurysm.
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Affiliation(s)
- Masato Takeda
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | | | - Eiichi Baba
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | | | - Motohiro Nomura
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
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24
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Shima H, Shirokane K, Baba E, Tsuchiya A, Nomura M. Bilateral Chronic Subdural Hematoma Presenting with Pseudo-Subarachnoid Hemorrhage Sign on Computed Tomography. Asian J Neurosurg 2019; 14:510-512. [PMID: 31143271 PMCID: PMC6516017 DOI: 10.4103/ajns.ajns_11_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: On rare occasions, cisterns are demonstrated as high-density areas on computed tomography (CT) and misdiagnosed with subarachnoid hemorrhage (SAH). This false-positive finding is called pseudo-SAH. Patients and Methods: From April 2014 to August 2018, a total of 161 patients with chronic subdural hematoma (CSDH) were treated in our hospital. For these cases, the existence of a pseudo-SAH sign on CT was retrospectively examined. Results: One patient with bilateral CSDH showed pseudo-SAH and a further examination to evaluate vascular abnormalities causing true SAH was necessary. In three patients, the Sylvian fissures were demonstrated as high-density areas due to an atherosclerotic middle cerebral artery; however, the condition was not misdiagnosed with SAH. Conclusion: In cases of CSDH, there is a possibility that CT demonstrates a pseudo-SAH sign. In such cases, close examinations to exclude true SAH are mandatory.
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Affiliation(s)
- Hiroshi Shima
- Department of Neurosurgery, Shima Neurosurgical and Orthopedic Clinic, Kanto Rosai Hospital, Kawasaki, Japan
| | | | - Eiichi Baba
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | | | - Motohiro Nomura
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
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Sakaguchi C, Ashida K, Yano S, Ohe K, Wada N, Hasuzawa N, Matsuda Y, Sakamoto S, Sakamoto R, Uchi H, Furue M, Nomura M, Ogawa Y. A case of nivolumab-induced acute-onset type 1 diabetes mellitus in melanoma. ACTA ACUST UNITED AC 2019; 26:e115-e118. [PMID: 30853818 DOI: 10.3747/co.26.4130] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nivolumab, an anti-PD-1 antibody, is now considered an important therapeutic agent in several advanced malignancies. However, immune-related adverse events such as endocrinopathies have been reported with its use. Thyroid disorder and isolated adrenocorticotropic hormone deficiency have frequently been reported as nivolumab-induced immune-related adverse events. Another endocrinopathy is nivolumab-induced type 1 diabetes mellitus (t1dm), described as diabetes mellitus with rapid onset and complete insulin insufficiency, at times leading to fulminant t1dm. We report the case of a 68-year-old woman who developed pancreatic islet-related autoantibody-negative t1dm, possibly induced by nivolumab, under continuous glucocorticoid administration. She was treated with nivolumab for advanced malignant melanoma, concomitant with 10 mg prednisolone daily for thrombophlebitis tapered to 5 mg after 13 courses of nivolumab therapy. At approximately the 27th course of nivolumab therapy, she showed elevated plasma glucose levels despite preserved insulin secretion. A month later, she developed diabetic ketoacidosis. Her insulin secretion decreased and finally was exhausted. She was diagnosed with acute-onset rather than fulminant t1dm because of a rapidly progressive course to diabetic ketoacidosis during just more than 1 week. She is currently receiving insulin replacement. There has been no recurrence of the melanoma. Thus, nivolumab might induce autoimmune diabetes mellitus, with patients having t1dm-sensitive human leucocyte antigen being more susceptible even when receiving glucocorticoids. Physicians should be aware that nivolumab could potentially induce t1dm as a critical immune-related adverse event.
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Affiliation(s)
- C Sakaguchi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - K Ashida
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan.,Division of Endocrinology and Metabolism, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - S Yano
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - K Ohe
- Faculty of Pharmaceutical Sciences, Fukuoka University, Japan
| | - N Wada
- Department of Dermatology, Kyushu University Hospital, Fukuoka City, Japan
| | - N Hasuzawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan.,Division of Endocrinology and Metabolism, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Y Matsuda
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - S Sakamoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - R Sakamoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - H Uchi
- Department of Dermatology, Kyushu University Hospital, Fukuoka City, Japan
| | - M Furue
- Department of Dermatology, Kyushu University Hospital, Fukuoka City, Japan
| | - M Nomura
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan.,Division of Endocrinology and Metabolism, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Y Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
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Yabuki R, Baba EI, Shirokane K, Tsuchiya A, Nomura M. Persistent Primitive Hypoglossal Artery Associated With Multiple Cerebral Aneurysms. J Clin Med Res 2018; 11:72-75. [PMID: 30627281 PMCID: PMC6306131 DOI: 10.14740/jocmr3649] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 10/22/2018] [Indexed: 11/21/2022] Open
Abstract
Persistent primitive hypoglossal artery is a rare anastomosis between the carotid and basilar arteries, and sometimes associated with cerebral aneurysms. However, association of persistent primitive hypoglossal artery with aneurysms located on arteries other than persistent primitive hypoglossal artery itself or posterior circulation is very rare. An 80-year-old woman suffered from subarachnoid hemorrhage, whose angiography demonstrated aneurysms on the left middle cerebral artery and anterior communicating artery, and the left persistent primitive hypoglossal artery. The middle cerebral artery aneurysm was the origin of hemorrhage. Although repeated craniotomy was necessary for the left middle cerebral artery aneurysm, both aneurysms were successfully clipped. In our case, neither aneurysm was located on an artery related to the persistent primitive hypoglossal artery. There is a possibility that cases of persistent primitive hypoglossal artery are accompanied by cerebral aneurysms on arteries other than the persistent primitive hypoglossal artery or in the posterior circulation.
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Affiliation(s)
- Rikako Yabuki
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | - Ei-Ichi Baba
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | | | | | - Motohiro Nomura
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
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Yamashita C, Otsuka A, Nomura M, Honda T, Kabashima K. Successful treatment of metastatic mucosal melanoma with a Del579 c-KIT mutation by imatinib after treatment of anti-PD-1 antibody. J Eur Acad Dermatol Venereol 2018; 33:e92-e93. [PMID: 30199578 DOI: 10.1111/jdv.15246] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- C Yamashita
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - A Otsuka
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Nomura
- Department of Clinical oncology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Honda
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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28
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Mori K, Tamase A, Seki S, Iida Y, Kawabata Y, Nakano T, Nomura M. Duplicated middle cerebral artery associated with aneurysm at M1/M2 bifurcation: a case report. J Med Case Rep 2018; 12:283. [PMID: 30269684 PMCID: PMC6166289 DOI: 10.1186/s13256-018-1824-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 08/28/2018] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND A duplicated middle cerebral artery arises from the internal carotid artery and supplies blood to the middle cerebral artery territory. A duplicated middle cerebral artery is sometimes associated with an intracranial aneurysm. Most aneurysms associated with duplicated middle cerebral artery are located at the origin of the duplicated middle cerebral artery. An aneurysm located at the distal middle cerebral artery is not common. CASE PRESENTATION We encountered a 62-year-old Asian man with duplicated middle cerebral artery associated with aneurysms at the M1/M2 junction of the duplicated middle cerebral artery and top of the internal carotid artery. CONCLUSIONS In cases of duplicated middle cerebral artery, association with a distal aneurysm on the duplicated middle cerebral artery is rare. However, the aneurysm may be formed on the thicker middle cerebral artery due to hemodynamic stress.
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Affiliation(s)
- Kentaro Mori
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Akira Tamase
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Syunsuke Seki
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yu Iida
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yuichi Kawabata
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Tatsu Nakano
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Motohiro Nomura
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
- Department of Neurosurgery, Kanto Rosai Hospital, 1-1 Kizukisumiyoshi-cho, Nakahara-ku, Kawasaki, 211-8510 Japan
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29
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Nomura M, Andoh M, Yokota T, Miyazaki T, Satake H, Iwasawa S, Sonoda A, Kato K, Muto M. Phase II trial on nivolumab in patients with unresectable or metastatic mucosal melanoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy289.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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30
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Nomura M, Baba E, Shirokane K, Tsuchiya A. Aneurysm of lenticulostriate artery in a patient presenting with hemorrhage in the caudate nucleus and lateral ventricle-delayed appearance and spontaneous resolution. Surg Neurol Int 2018; 9:192. [PMID: 30294496 PMCID: PMC6169348 DOI: 10.4103/sni.sni_126_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 08/02/2018] [Indexed: 12/03/2022] Open
Abstract
Background: An aneurysm of distal lenticulostriate artery is very rare. The natural course and management of this rare aneurysm are not clear. Case Description: An 81-year-old woman developed consciousness disturbance. Computed tomography revealed hemorrhage in the right caudate nucleus and lateral ventricles. Three-dimensional computed tomographic angiography demonstrated only an aneurysm at the basilar artery. On angiography, on the sixth day, an aneurysm at the right lenticulostriate artery was demonstrated. Then, the aneurysm disappeared on three-dimensional computed tomographic angiography on the 15th day. Subsequent radiological examinations revealed no vascular anomaly in the right lenticulostriate artery. Conclusion: An aneurysm at this location can show dynamic changes based on radiological findings. Close radiological observation is necessary.
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Affiliation(s)
- Motohiro Nomura
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | - Eiichi Baba
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
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Nejo T, Matsushita H, Karasaki T, Nomura M, Takayanagi S, Tanaka S, Mukasa A, Kakimi K, Saito N. P04.14 Multiomics analysis on primary and recurrent paired tumors reveals a possible immune evasion mechanism through reduced neoantigen expression in some glioma. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Nejo
- Department of Neurosurgery, The University of Tokyo, Tokyo, Japan
- Department of Immunotherapeutics, The University of Tokyo Hospital, Tokyo, Japan
| | - H Matsushita
- Department of Immunotherapeutics, The University of Tokyo Hospital, Tokyo, Japan
| | - T Karasaki
- Department of Immunotherapeutics, The University of Tokyo Hospital, Tokyo, Japan
| | - M Nomura
- Department of Neurosurgery, The University of Tokyo, Tokyo, Japan
| | - S Takayanagi
- Department of Neurosurgery, The University of Tokyo, Tokyo, Japan
| | - S Tanaka
- Department of Neurosurgery, The University of Tokyo, Tokyo, Japan
| | - A Mukasa
- Department of Neurosurgery, The University of Tokyo, Tokyo, Japan
| | - K Kakimi
- Department of Immunotherapeutics, The University of Tokyo Hospital, Tokyo, Japan
| | - N Saito
- Department of Neurosurgery, The University of Tokyo, Tokyo, Japan
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32
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Sonnino C, Nagai M, Kasuya Y, Cavaliere F, Nomura M, Ozaki M. Microcirculation by laser Doppler flowmetry in two cases of transcatheter aortic valve implantation. J Cardiothorac Vasc Anesth 2018. [DOI: 10.1053/j.jvca.2018.08.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Hijikata T, Baba E, Shirokane K, Tsuchiya A, Nomura M. Dissecting Vertebral Artery Aneurysm Presenting Regrowth After Stent-Assisted Coil Embolization in Acute Stage. J Clin Med Res 2018; 10:527-530. [PMID: 29707096 PMCID: PMC5916543 DOI: 10.14740/jocmr3397w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 03/19/2018] [Indexed: 02/06/2023] Open
Abstract
For a case of dissecting vertebral artery aneurysm (DVAA) in a dominant vertebral artery (VA) or posterior inferior cerebellar artery (PICA)-involving lesion, stent-assisted coil embolization (SACE) is an effective technique to preserve blood flow of the VA. A 41-year-old man presented with subarachnoid hemorrhage. Angiography demonstrated DVAA on the left VA just distal to the PICA, and the right VA was thinner than the left. For this case, SACE was performed to preserve the left VA and PICA. On the 10th day, angiography showed recurrence of the dissection. The dissected portion had thickened and extended to both distal and proximal sides involving the PICA origin and proximal portion to the PICA. A second endovascular embolization was performed and the recurrent dissecting aneurysm was embolized including the main VA cavity. In cases of DVAA, there is a possibility of recurrence after SACE, if a dissecting cavity remains unembolized. Therefore, total embolization is necessary under close observation from multiple angles, including the down-the-barrel view.
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Affiliation(s)
| | - Eiichi Baba
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | | | | | - Motohiro Nomura
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
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34
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Osada A, Gloppe A, Hisatomi R, Noguchi A, Yamazaki R, Nomura M, Nakamura Y, Usami K. Brillouin Light Scattering by Magnetic Quasivortices in Cavity Optomagnonics. Phys Rev Lett 2018; 120:133602. [PMID: 29694172 DOI: 10.1103/physrevlett.120.133602] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Indexed: 06/08/2023]
Abstract
A ferromagnetic sphere can support optical vortices in the form of whispering gallery modes and magnetic quasivortices in the form of magnetostatic modes with nontrivial spin textures. These vortices can be characterized by their orbital angular momenta. We experimentally investigate Brillouin scattering of photons in the whispering gallery modes by magnons in the magnetostatic modes, zeroing in on the exchange of the orbital angular momenta between the optical vortices and magnetic quasivortices. We find that the conservation of the orbital angular momentum results in different nonreciprocal behavior in the Brillouin light scattering. New avenues for chiral optics and optospintronics can be opened up by taking the orbital angular momenta as a new degree of freedom for cavity optomagnonics.
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Affiliation(s)
- A Osada
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - A Gloppe
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - R Hisatomi
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - A Noguchi
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - R Yamazaki
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - M Nomura
- Institute of Industrial Science (IIS), The University of Tokyo, Meguro-ku, Tokyo 153-8505, Japan
| | - Y Nakamura
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
- Center for Emergent Matter Science (CEMS), RIKEN, Wako, Saitama 351-0198, Japan
| | - K Usami
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
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35
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Nomura M, Mori K, Fukui I, Yanagimoto K, Shima H, Muramatsu N. Pseudoaneurysm at M3 of the middle cerebral artery: Morphological changes on serial radiological examinations. Neuroradiol J 2017; 31:317-319. [PMID: 29125049 DOI: 10.1177/1971400917741904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A 20-year-old man presented with consciousness disturbance and hemiparesis, and computed tomography demonstrated subarachnoid and intracerebral hemorrhage. Angiography on admission demonstrated a slight irregularity of the middle cerebral artery (MCA) branch. Angiography on the 12th day showed a suspicious lesion at M3 of the left MCA. Angiography performed 24 days after the onset disclosed an aneurysm at M3. The aneurysm was trapped and resected after superficial temporal artery-MCA bypass. Pathological examinations revealed that this distal aneurysm was a pseudoaneurysm without vascular components in its dome. Although a lesion that may cause subarachnoid or intracerebral hemorrhage was not detected on the initial angiography, repeated examinations revealed the atypical vascular lesion in distal MCA.
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Affiliation(s)
- Motohiro Nomura
- 1 Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | - Kentaro Mori
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Issei Fukui
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Kunio Yanagimoto
- 3 Department of Pathology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Hiroshi Shima
- 4 Department of Neurosurgery, Shima Neurosurgical and Orthopedic Clinic, Kawasaki, Japan
| | - Naoki Muramatsu
- 5 Department of Neurosurgery, Komatsu Municipal Hospital, Komatsu, Japan
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Nomura M, Mori K, Tamase A, Kamide T, Seki S, Iida Y, Shirokane K, Baba E, Tsuchiya A, Shima H. Thromboembolic complications during endovascular treatment of ruptured cerebral aneurysms. Interv Neuroradiol 2017; 24:29-39. [PMID: 29125027 DOI: 10.1177/1591019917739448] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background In cases of subarachnoid hemorrhage due to aneurysm rupture, the administration of an anticoagulant or antiplatelet agent involves the risk of rebleeding from the aneurysm. There is a possibility of inducing thromboembolic events during the endovascular embolization of ruptured cerebral aneurysms. Patients and methods From April 2006 to March 2017, we treated a total of 70 patients with ruptured cerebral aneurysms with an endovascular technique. Among them, five patients (7.1%) showed intra-arterial thrombus formation. The aneurysms were located at the anterior communicating artery and basilar artery in two patients each, and on the internal carotid artery at the bifurcation of the anterior choroidal artery (AChoA) in one. In these patients, the clinical course, radiological findings, and management were retrospectively reviewed. Results Thrombus formation was observed in the posterior cerebral artery, anterior cerebral artery (A2), AChoA, and middle cerebral artery. The timing of thrombus formation was during coil delivery in four cases, and guiding catheter advancement in one. As for thrombus management, for all patients, administrations of heparin and antiplatelet agents were performed. For four patients, urokinase injection into the affected arteries was added after the completion of embolization. Cerebral infarction was postoperatively identified in two patients, but no hemorrhage was noted. Conclusion Administrations of heparin and antiplatelet drugs should be performed appropriately during procedures, and close observation of the arterial condition on angiography is necessary. Once thromboembolism occurs during the endovascular embolization of ruptured cerebral aneurysms, adequate heparinization, and antiplatelet therapy should first be performed.
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Affiliation(s)
- Motohiro Nomura
- 1 Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | - Kentaro Mori
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Akira Tamase
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Tomoya Kamide
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Syunsuke Seki
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yu Iida
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | | | - Eiichi Baba
- 1 Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
| | - Atsushi Tsuchiya
- 3 Department of Neurology, Kanto Rosai Hospital, Kawasaki, Japan
| | - Hiroshi Shima
- 4 Department of Neurosurgery, Shima Neurosurgical and Orthopedic Clinic, Kawasaki, Japan
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Hamabe Y, Hanai A, Ishiguro H, Kuroda T, Hirota M, Nomura M, Ishikawa H, Muto M. Effects of steroid ointment application on chemotherapy-induced phlebitis: A randomized, double-blind, placebo-controlled clinical trial. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx676.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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38
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Abstract
In search of efficient thermoelectric nanostructures, many theoretical works predicted that nanopillars, placed on the surface of silicon membranes, nanobeams, or nanowires, can reduce the thermal conductivity of these nanostructures. To verify these predictions, we experimentally investigate heat conduction in suspended silicon nanobeams with periodic arrays of aluminium nanopillars. Our room temperature time-domain thermoreflectance experiments show that the nanobeams with nanopillars have 20% lower thermal conductivity as compared to pristine nanobeams. We discuss possible explanations of these data, including coherent effects, and conclude that the thermal conductivity is reduced mainly by phonon scattering at the pillar/beam interface due to the intermixing of aluminium and silicon atoms, as supported by the transmission electron microscopy. As this intermixing does not only reduce thermal conductivity but may also increase electrical conductivity, these nanostructures are exceptionally promising for thermoelectric applications.
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Affiliation(s)
- R Anufriev
- Institute of Industrial Science, University of Tokyo, Tokyo, 153-8505, Japan.
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Abstract
We report the rare case of a right aortic arch associated with agenesis of the left internal carotid artery. A 75-year-old woman with a medical history of tetralogy of Fallot presented with dizziness. Magnetic resonance angiography revealed agenesis of the left internal carotid artery in addition to a previously diagnosed right aortic arch. The left common carotid artery was present, but it was thin. Computed tomography showed the absence of the left carotid canal. The left anterior cerebral artery was fed via the anterior communicating artery. The left middle cerebral artery was fed via a thickened posterior communicating artery originating from the left posterior cerebral artery. Although a right aortic arch and agenesis of the internal carotid artery are both very rare, association of the two conditions may occur. Both anomalies depend on the abnormal regression of the dorsal aorta during embryonic development. In such a situation, the presence of other anomalies in the cardiac or central nervous system should be taken into consideration.
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Affiliation(s)
- Yu Iida
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan.,Department of Neurosurgery, Yokohama Rosai Hospital, Yokohama, Kanagawa, Japan
| | - Hiroshi Nagamine
- Department of Cardiovascular Surgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan
| | - Motohiro Nomura
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Kanagawa, Japan.,Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Kanagawa, Japan
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40
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Umezu R, Koga J, Wang L, Nomura M, Tsutsui H, Egashira K. P691Macrophage dynamin-related protein1 promotes neointima formation after mechanical injury in mouse femoral arteries. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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Tamase A, Kamide T, Mori K, Seki S, Iida Y, Kawabata Y, Nakano T, Shima H, Yanagimoto K, Nomura M. Superficial Temporal Artery-Middle Cerebral Artery Bypass Using a Thick STA after Endarterectomy: A Rescue Technique. J Neurol Surg A Cent Eur Neurosurg 2017; 78:595-600. [DOI: 10.1055/s-0037-1598050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Background and Objective Superficial temporal artery (STA)-middle cerebral artery (MCA) bypass is a procedure to reconstruct cerebral blood flow in the MCA territory. In some cases, the STA wall is thickened and the size discrepancy between STA and MCA is apparent. In such a situation, STA-MCA bypass is challenging. We present two patients who underwent STA-MCA bypass using STA in which a thickened intima was removed. We discuss the usefulness of this rescue technique.
Patients and Results A patient with an atherosclerotic MCA occlusion and another with an occluded internal carotid artery are included. Endarterectomy of STA was performed before or during anastomosis, and the intima-resected STA was anastomosed to MCA. In both cases, the STA was thick and hard, and it was difficult to anastomose the STA as it was to the MCA. Patency of the bypass was confirmed by postoperative angiography.
Conclusion Endarterectomy of a thickened STA might be an effective rescue technique in cases with severely atherosclerotic STA in STA-MCA bypass.
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Affiliation(s)
- Akira Tamase
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Tomoya Kamide
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Kentaro Mori
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Syunsuke Seki
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yu Iida
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yuichi Kawabata
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Tatsu Nakano
- Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Hiroshi Shima
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Kunio Yanagimoto
- Department of Pathology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Motohiro Nomura
- Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan
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Nomura M, Tamase A, Kamide T, Mori K, Seki S, Muramatsu N, Kinoshita M. Pin-point selection of recipient MCA at M4 for STA-MCA bypass using micro-Doppler ultrasonography. J Neurosurg Sci 2017; 61:446-449. [PMID: 28555489 DOI: 10.23736/s0390-5616.16.03381-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Motohiro Nomura
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan - .,Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan -
| | - Akira Tamase
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Tomoya Kamide
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Kentaro Mori
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Shunsuke Seki
- Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Naoki Muramatsu
- Department of Neurosurgery, Fukui Prefectural Hospital, Fukui, Japan
| | - Masashi Kinoshita
- Department of Neurosurgery, Kanazawa University, Graduate School of Medical Science, Kanazawa, Japan
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Nomura M, Sakitani N, Iwasawa H, Kohara Y, Takano S, Wakimoto Y, Kuroki H, Moriyama H. Thinning of articular cartilage after joint unloading or immobilization. An experimental investigation of the pathogenesis in mice. Osteoarthritis Cartilage 2017; 25:727-736. [PMID: 27916560 DOI: 10.1016/j.joca.2016.11.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 11/19/2016] [Accepted: 11/25/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Moderate mechanical stress generated by normal joint loading and movement is essential for the maintenance of healthy articular cartilage. However, the effects of reduced loading caused by the absence of weight bearing or joint motion on articular cartilage and subchondral bone is still poorly understood. We aimed to characterize morphological and metabolic responses of articular cartilage and subchondral bone to decreased mechanical stress in vivo. METHODS Mice were subjected to periods of hindlimb unloading by tail suspension or external fixation of the knee joints. The articular surface was observed with digital microscope and the epiphyseal bone was assessed by micro-CT analysis. Articular cartilage and subchondral bone were further evaluated by histomorphometric, histochemical, and immunohistochemical analyses. RESULTS The joint surface was intact, but thickness of both the total and uncalcified layer of articular cartilage were decreased both after joint unloading and immobilization. Subchondral bone atrophy with concomitant marrow expansion predisposed osteoclast activity at bone surface to invade into cartilaginous layer. Uncalcified cartilage showed decreased aggrecan content and increased aggrecanase expression. Alkaline phosphatase (ALP) activity was increased at uncalcified cartilage, whereas decreased at calcified cartilage. The distributions of hypertrophic chondrocyte markers remained unchanged. CONCLUSION Thinning of articular cartilage induced by mechanical unloading may be mediated by metabolic changes in chondrocytes, including accelerated aggrecan catabolism and exquisitely modulated matrix mineralization, and cartilage matrix degradation and resorption by subchondral osteoclasts. Cartilage degeneration without chondrocyte hypertrophy under unloading condition indicate the possible existence of mechanism which is different from osteoarthritis pathogenesis.
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Affiliation(s)
- M Nomura
- Department of Rehabilitation Science, Graduate School of Health Sciences, Kobe University, Tomogaoka 7-10-2, Suma-ku, Kobe, 654-0142, Japan.
| | - N Sakitani
- Department of Rehabilitation Science, Graduate School of Health Sciences, Kobe University, Tomogaoka 7-10-2, Suma-ku, Kobe, 654-0142, Japan.
| | - H Iwasawa
- Department of Rehabilitation Science, Graduate School of Health Sciences, Kobe University, Tomogaoka 7-10-2, Suma-ku, Kobe, 654-0142, Japan; Department of Rehabilitation, St. Marianna University School of Medicine, Sugao 2-16-1, Miyamae-ku, Kawasaki, 216-8511, Japan.
| | - Y Kohara
- Department of Rehabilitation Science, Graduate School of Health Sciences, Kobe University, Tomogaoka 7-10-2, Suma-ku, Kobe, 654-0142, Japan.
| | - S Takano
- Department of Rehabilitation Science, Graduate School of Health Sciences, Kobe University, Tomogaoka 7-10-2, Suma-ku, Kobe, 654-0142, Japan.
| | - Y Wakimoto
- Department of Rehabilitation Science, Graduate School of Health Sciences, Kobe University, Tomogaoka 7-10-2, Suma-ku, Kobe, 654-0142, Japan.
| | - H Kuroki
- School of Health Sciences, Graduate School of Medicine, Kyoto University, Kawahara-cho, Shogoin 53, Sakyo-ku, Kyoto-shi, Kyoto, 606-8507, Japan.
| | - H Moriyama
- Department of Rehabilitation Science, Graduate School of Health Sciences, Kobe University, Tomogaoka 7-10-2, Suma-ku, Kobe, 654-0142, Japan.
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Okuyama K, Ariffn SA, Nomura M. Can foreign trainees be distractive in terms of communication during cardiac surgery? J Cardiothorac Vasc Anesth 2017. [DOI: 10.1053/j.jvca.2017.02.155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kajimura S, Kochiyama T, Nakai R, Abe N, Nomura M. P120 Asymmetric function of the right and left inferior parietal lobule in mind wandering – A tDCS and fMRI study. Clin Neurophysiol 2017. [DOI: 10.1016/j.clinph.2016.10.242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nomura M, Mori K, Tamase A, Kamide T, Seki S, Iida Y, Nakano T, Kawabata Y, Kitabatake T, Nakajima T, Yasutake K, Egami K, Takahashi T, Takahashi M, Yanagimoto K. Pseudoaneurysm formation due to rupture of intracranial aneurysms: Case series and literature review. Neuroradiol J 2017; 30:129-137. [PMID: 28059632 DOI: 10.1177/1971400916684667] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background Intracranial pseudoaneurysm formation due to a ruptured non-traumatic aneurysm is extremely rare. We describe the radiological findings and management of pseudoaneurysms due to ruptured cerebral aneurysms in our case series and previously reported cases. Patients and methods Four additional and 20 reported patients presenting with subarachnoid hemorrhage (SAH) are included. Radiological findings and clinical features of these patients were reviewed. Results In our series, three-dimensional computed tomographic angiography (3D-CTA) and/or angiography showed an irregular- or snowman-shaped cavity extending from the parent artery. The radiological examination additionally revealed delayed filling and retention of contrast medium. These findings were the same as previously reported cases. One patient underwent direct clipping of the true aneurysm. For the other three patients with aneurysms at the basilar and anterior communicating arteries, the true portion of the aneurysm was embolized with platinum coils. During the procedures, care was taken not to insert the coils into the distal pseudoaneurysm portion to prevent rupture. The review of 24 cases revealed that the location of the aneurysms was most frequent in the anterior communicating artery (41.7%), and 86.7% of patients were in a severe stage of SAH (>Grade 3 in WFNS or Hunt & Kosnik grading) implying abundant SAH. Conclusions Pseudoaneurysm formation in SAH after non-traumatic aneurysm rupture is rare. However, in cases with an irregular-shaped aneurysm cavity, pseudoaneurysm formation should be taken into consideration.
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Affiliation(s)
- Motohiro Nomura
- 1 Department of Neurosurgery, Kanto Rosai Hospital, Kawasaki, Japan.,2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Kentaro Mori
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Akira Tamase
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Tomoya Kamide
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Syunsuke Seki
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yu Iida
- 2 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Tatsu Nakano
- 3 Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Yuichi Kawabata
- 3 Department of Neurology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Taro Kitabatake
- 4 Department of Radiology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Teruyuki Nakajima
- 4 Department of Radiology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Kiyoyuki Yasutake
- 4 Department of Radiology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | - Kei Egami
- 4 Department of Radiology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
| | | | | | - Kunio Yanagimoto
- 5 Department of Pathology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan
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Miyaji Y, Kawabata Y, Joki H, Seki S, Mori K, Kamide T, Tamase A, Shima H, Nomura M, Kitamura Y, Tanaka F. Late Seizures after Stroke in Clinical Practice: The Prevalence of Non-convulsive Seizures. Intern Med 2017; 56:627-630. [PMID: 28321060 PMCID: PMC5410470 DOI: 10.2169/internalmedicine.56.7162] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective The prevalence of the non-convulsive type of late seizure after stroke is unknown. The aim of the present study was to clarify the characteristics of late seizure in clinical practice, mainly focusing on the prevalence of non-convulsive seizure. Methods A total of 178 consecutive patients who were admitted and diagnosed with late seizure after stroke were retrospectively enrolled, and the data of 127 patients for whom the complete seizure was observed by a bystander were analyzed. Clinical information was obtained from the medical records and nursing notes. Results A non-convulsive seizure was observed in 37 patients (29%). A focal seizure and its secondary generalization accounted for 79% of the seizure types. Status epilepticus was observed in 60 patients (47%), including 11 patients (9%) without convulsion. The patients with non-convulsive seizures were significantly younger than those with convulsive seizures, but there were no other significant differences between the two groups with respect to sex, classification or the lesion of stroke. Conclusion There was a high rate of non-convulsive seizures in patients with late seizure after stroke. A non-convulsive seizure may be caused by any type or location of preceding stroke. More attention is needed in the differential diagnosis of neurological deterioration after stroke.
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Affiliation(s)
- Yosuke Miyaji
- Department of Neurology and Stroke Medicine, Yokohama Sakae Kyosai Hospital, Japan
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Hirose K, Kikawada Y, Igarashi Y, Fujiwara H, Jugder D, Matsumoto Y, Oi T, Nomura M. Plutonium, 137Cs and uranium isotopes in Mongolian surface soils. J Environ Radioact 2017; 166:97-103. [PMID: 26830016 DOI: 10.1016/j.jenvrad.2016.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 01/12/2016] [Accepted: 01/14/2016] [Indexed: 06/05/2023]
Abstract
Plutonium (238Pu and 239,240Pu), 137Cs and plutonium activity ratios (238Pu/239,240Pu) as did uranium isotope ratio (235U/238U) were measured in surface soil samples collected in southeast Mongolia. The 239,240Pu and 137Cs concentrations in Mongolian surface soils (<53 μm of particle size) ranged from 0.42 ± 0.03 to 3.53 ± 0.09 mBq g-1 and from 11.6 ± 0.7 to 102 ± 1 mBq g-1, respectively. The 238Pu/239,240Pu activity ratios in the surface soils (0.013-0.06) coincided with that of global fallout. The 235U/238U atom ratios in the surface soil show the natural one. There was a good correlation between the 239,240Pu and 137Cs concentrations in the surface soils. We introduce the migration depth to have better understanding of migration behaviors of anthropogenic radionuclides in surface soil. We found a difference of the migration behavior between 239,240Pu and 137Cs from 137Cs/239,240Pu - 137Cs plots for the Mongolian and Tsukuba surface soils; plutonium in surface soil is migrated easier than 137Cs.
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Affiliation(s)
- K Hirose
- Department of Material and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Ciyoda-Ku, Tokyo 102-8554, Japan.
| | - Y Kikawada
- Department of Material and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Ciyoda-Ku, Tokyo 102-8554, Japan
| | - Y Igarashi
- Atmospheric Environment and Applied Meteorology Research Department, Meteorological Research Institute, Tsukuba, Ibaraki 305-0052 Japan
| | - H Fujiwara
- Soil Environment Division, National Institute for Agro-Environmental Sciences, Tsukuba, Ibaraki 305-8601, Japan
| | - D Jugder
- Institute of Meteorology and Hydrology, Ulaanbaatar 46, Mongolia
| | - Y Matsumoto
- Department of Material and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Ciyoda-Ku, Tokyo 102-8554, Japan
| | - T Oi
- Department of Material and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Ciyoda-Ku, Tokyo 102-8554, Japan
| | - M Nomura
- Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, Ookayama 2-12-1, Meguro-Ku, Tokyo 152-8550, Japan
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Nomura M, Velleman D, Pierre J, Flament F. Quantitating the lateral skin stiffness by a new and versatile electro-mechanical instrument. Preliminary studies. Skin Res Technol 2016; 23:272-282. [PMID: 27896851 DOI: 10.1111/srt.12331] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND A new electro-mechanical device for measuring the lateral stiffness of the skin is now available. It basically allows to recording the forces that the skin opposes to a lateral displacement (1-2 mm) of a pinching type movement. Preliminary assays of this device to various skin sites and an artificial substrate aimed at defining its major characteristics (sensitivity, reproducibility, variations according to skin site). METHODS The calibration of the device (Khelometer® ) and assessment of its reproducibility were carried out through the use of elastometer substrates of various stiffness's. The device was then used, in vivo, at different skin sites (scalp, inner and outer forearms, cheeks) of 213 healthy Japanese women of various ages. The short-time effect of a hydrating regimen (7% glycerol) was recorded on the outer forearm. RESULTS This new device offers an appreciable reproducibility in vitro and in vivo (coefficient of variation of 2-4% and 5-14%, respectively). Unlike other biophysical methods, the Khelometer® can be easily applied onto the human scalp that shows a higher stiffness than the two other skin sites, increasing with age and presence of alopecia. In all the three studied skin sites, the impact of age leads to significantly higher lateral skin stiffness (LSS, expressed as N/mm) values. The latter were found significantly different between the two sides of the forearms where the outer (sun-exposed) side showed statistically slightly higher LSS, than the unexposed inner side. LSS values found on cheeks (≈0.5 N/mm) were about four times lower than those of the scalp (≈2 N/mm) and about half those of forearms (≈1 N/mm). The effect of a 7% glycerol based formula was recorded 20 min post application onto the forearm, leading to a slight drop in LSS (approx. 15%) as compared to a vehicle-applied skin site. CONCLUSION These preliminary studies clearly indicate that this new device, applicable to any skin site, offers appreciable assets such as sensitivity and reproducibility. Accordingly, it appears as a new approach in the non-invasive biophysical measurements of the skin surface, in both advanced and applied research investigations.
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Affiliation(s)
- M Nomura
- Nihon L'Oréal Research and Innovation, Kawasaki, Japan
| | - D Velleman
- Nihon L'Oréal Research and Innovation, Kawasaki, Japan
| | - J Pierre
- L'Oréal Research and Innovation, Chevilly-Larue, France
| | - F Flament
- L'Oréal Research and Innovation, Chevilly-Larue, France
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Nomura M, Wada T, Ishibashi T, Komoriya T, Nagahara T, Chihara T. Development and inter-laboratory study of a method for quantifying zearalenone in pet foods. WORLD MYCOTOXIN J 2016. [DOI: 10.3920/wmj2014.1806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
An analytical method for quantifying zearalenone (ZEA) in pet foods using a liquid chromatograph-atmospheric pressure chemical ionization-mass spectrometer (LC-APCI-MS) was developed, and an inter-laboratory study was conducted. ZEA was extracted from pet food samples with aqueous acetonitrile. The extract was purified using a multifunctional column, MultiSep 226 Aflazon+, and analysed with LC-APCI-MS. The limit of quantification of ZEA by this method was estimated to be 0.2 mg/kg for dry and semi-dry pet foods, and 0.1 mg/kg for wet pet food. The calibration curve of ZEA for this method showed linearity in the range of 0.1-10 ng of ZEA (0.01-1.0 µg/ml, 0.04-4.0 mg/kg matrix). The mean recoveries, repeatabilities, reproducibilities, and the HorRats for ZEA from the inter-laboratory validation study were 99.0-102%, 2.2-3.0%, 5.6-6.6%, and 0.33-0.36, respectively.
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Affiliation(s)
- M. Nomura
- Food and Agricultural Materials Inspection Center, Fertilizer and Feed Inspection Department, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - T. Wada
- Chemicals Evaluation and Research, Institute, Japan (CERI), Tokyo, Environmental Technology Department, 1600 Shimotakano, Sugito-machi, Kitakatsushika-gun, Saitama 345-0043, Japan
| | - T. Ishibashi
- Food and Agricultural Materials Inspection Center, Fertilizer and Feed Inspection Department, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - T. Komoriya
- Food and Agricultural Materials Inspection Center, Fertilizer and Feed Inspection Department, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - T. Nagahara
- Food and Agricultural Materials Inspection Center, Fertilizer and Feed Inspection Department, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
| | - T. Chihara
- Food and Agricultural Materials Inspection Center, Fertilizer and Feed Inspection Department, Saitama Shintoshin National Government Building, Kensato Building, Shintoshin 2-1, Chuo-ku, Saitama-shi, Saitama 330-9731, Japan
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