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Himemiya-Hakucho A, Taketani A, Nakagawa A, Sakai H, Shigemoto A, Takase I. Practices and Awareness Regarding an Infant's Sleep Environment among Japanese Caregivers: A Cross-Sectional Survey. Int J Environ Res Public Health 2024; 21:471. [PMID: 38673381 PMCID: PMC11050700 DOI: 10.3390/ijerph21040471] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/02/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024]
Abstract
Preventing sudden, unexpected infant death related to sleep, especially suffocation and sudden infant death syndrome, remains challenging globally. To evaluate factors associated with an unsafe sleep environment (SE) for infants in Japan, this cross-sectional study investigated the current status of practices and awareness among caregivers about a safe SE. Two hundred and fifty-four caregivers of infants in Yamaguchi Prefecture participated. Among the caregivers, 96.0% could not thoroughly practice a safe SE, although 65.0% had knowledge about a safe SE. More unsafe SE practices were significantly associated with 8- to 11-month-old infants than with 0- to 3-month-old infants, using the same practice as for an older child than with accessing information or a familiar person than with mass media as the most useful source of information. The differences in having knowledge were not associated with their practice. Many caregivers obtained information about an infant's SE from mass media and a familiar person. They preferred education via a face-to-face method by medical experts to raise awareness about a safe SE. Thus, efforts need to be developed in Japan in which experts who directly attend to caregivers can truly educate them to ensure that caregivers are continuously aware of the importance of an SE.
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Affiliation(s)
- Ayako Himemiya-Hakucho
- Department of Legal Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi 755-8505, Japan; (A.N.); (H.S.); (A.S.); (I.T.)
| | - Ayumi Taketani
- Undergraduate Courses of Medicine, Faculty of Medicine and Health Sciences, Yamaguchi University, Yamaguchi 755-8505, Japan;
| | - Aoi Nakagawa
- Department of Legal Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi 755-8505, Japan; (A.N.); (H.S.); (A.S.); (I.T.)
| | - Hiroki Sakai
- Department of Legal Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi 755-8505, Japan; (A.N.); (H.S.); (A.S.); (I.T.)
| | - Azumi Shigemoto
- Department of Legal Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi 755-8505, Japan; (A.N.); (H.S.); (A.S.); (I.T.)
| | - Izumi Takase
- Department of Legal Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi 755-8505, Japan; (A.N.); (H.S.); (A.S.); (I.T.)
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Himemiya-Hakucho A, Saito M, Nakagawa A, Shigemoto A, Takase I. A retrospective study of unexpected deaths with alcohol use disorder from Japanese forensic autopsy cases. Leg Med (Tokyo) 2024; 69:102440. [PMID: 38574494 DOI: 10.1016/j.legalmed.2024.102440] [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] [Received: 01/04/2024] [Revised: 03/17/2024] [Accepted: 03/27/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Alcohol use disorder (AUD) is an important target for prevention of alcohol-related problems. In this study, we analyzed forensic autopsy cases to reveal the characteristics of the living conditions and death situations of individuals with AUD. METHODS We retrospectively investigated 486 cases with a history of alcohol consumption for which a forensic autopsy was performed from 2012 to 2021 in Yamaguchi prefecture. Judgement of AUD was made using DSM-5. Various factors were compared statistically between AUD and non-AUD cases. RESULTS Of the 486 cases, 225 (46.2%) were judged to be AUD, including 89 (18.3%) with advanced AUD, 33 (6.8%) were judged not to be AUD, and a judgement could not be made in the remaining cases. AUD was associated with alcohol consumption prior to death. Only 14.3% of the advanced-AUD cases was in treatment for alcohol dependence. The rates of interpersonal, health, financial and legal problems, receipt of public assistance and an extremely cluttered or hoarding house status were higher in all AUD and advanced AUD cases. Living alone, smoking and BMI were also associated with AUD. CONCLUSIONS Many cases of alcohol-related deaths may have AUD, and persons with AUD who undergo a forensic autopsy commonly have multiple socioeconomic factors that may be associated with isolation that is involved in exacerbation of AUD. Further studies of these associations are needed because early diagnosis and treatment of AUD and support for the patient may lead to reduction of alcohol-related deaths.
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Affiliation(s)
- Ayako Himemiya-Hakucho
- Department of Legal Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Misaki Saito
- Undergraduate Courses of Medicine, Yamaguchi University Faculty of Medicine and Health Sciences, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Aoi Nakagawa
- Department of Legal Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Azumi Shigemoto
- Department of Legal Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
| | - Izumi Takase
- Department of Legal Medicine, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
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Sato Y, Hara S, Shima Y, Shimada Y, Osaki M, Matsunashi A, Hirabayashi R, Nagata K, Nakagawa A, Tachikawa R, Tomii K. P37.29 Clinical Characteristics that Affect the Success Rate of BRAF-V600E Oncomine Dx Target Test. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sato Y, Fujimoto D, Hosoya K, Nagata K, Nakagawa A, Tachikawa R, Tomii K. Impact of visceral fat area as independent predictive factor in patients with advanced non-small cell lung cancer treated with nivolumab. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.037] [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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Fukudo S, Nakajima A, Fujiyama Y, Kosako M, Nakagawa A, Akiho H, Nakashima Y, Johnston JM, Miwa H. Randomized, double-blind, placebo-controlled study vs data in the daily practice using linaclotide in patients with irritable bowel syndrome with constipation. Neurogastroenterol Motil 2018; 30:e13363. [PMID: 29700962 DOI: 10.1111/nmo.13363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 02/08/2023]
Affiliation(s)
- S Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Nakajima
- Department of Gastroenterology, Yokohama City University, Yokohama, Japan
| | - Y Fujiyama
- Shiga University of Medical Science, Ohtsu, Japan
| | - M Kosako
- Japan-Asia Clinical Development 2, Development, Astellas Pharma Inc., Tokyo, Japan
| | - A Nakagawa
- Japan-Asia Clinical Development 2, Development, Astellas Pharma Inc., Tokyo, Japan
| | - H Akiho
- Japan-Asia Clinical Development 2, Development, Astellas Pharma Inc., Tokyo, Japan
| | - Y Nakashima
- Japan-Asia Data Science, Development, Astellas Pharma Inc., Tokyo, Japan
| | - J M Johnston
- Ironwood Pharmaceuticals Inc., Cambridge, MA, USA
| | - H Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
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Fukudo S, Nakajima A, Fujiyama Y, Kosako M, Nakagawa A, Akiho H, Nakashima Y, Johnston JM, Miwa H. Determining an optimal dose of linaclotide for use in Japanese patients with irritable bowel syndrome with constipation: A phase II randomized, double-blind, placebo-controlled study. Neurogastroenterol Motil 2018; 30:e13275. [PMID: 29278278 DOI: 10.1111/nmo.13275] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 12/04/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Clinical testing to determine a suitable dose of linaclotide for Japanese patients with irritable bowel syndrome with constipation (IBS-C) was needed. METHODS This was a randomized, double-blind, placebo-controlled, dose-finding trial. Japanese patients with IBS-C diagnosed using Rome III criteria (n = 559, men/women: 49/510) were randomly assigned to 1 of 4 linaclotide doses (0.0625, 0.125, 0.25, or 0.5 mg) or placebo for the 12-week treatment period. The primary endpoint was responder rate of global assessment of relief of IBS symptoms during 12 weeks. The secondary endpoints included responder rates of complete spontaneous bowel movement (CSBM), SBM and abdominal pain/discomfort relief and others. KEY RESULTS The primary endpoint was 23.2%, 36.2%, 38.7%, 34.8%, and 38.3% in placebo (n = 112), 0.0625 (n = 116), 0.125 (n = 111), 0.25 (n = 112), and 0.5 (n = 107) mg of linaclotide groups with the difference from the placebo group in each linaclotide group (13.0%, 15.5%, 11.6%, 15.1%, P > .05). Monthly responder rate of global assessment of relief of IBS symptoms at month 3 (48.6%), responder rate of CSBM during 12 weeks (45.8%), and responder rate of abdominal pain/discomfort relief during 12 weeks (32.7%) in the 0.5 mg were significantly higher than those in placebo group (29.5%, P < .01; 25.9%, P < .01; and 18.8%, P < .05 respectively). The most frequent adverse event in the linaclotide groups was diarrhea. CONCLUSIONS & INFERENCES This study suggests that a linaclotide dose of 0.5 mg may be appropriate in Japanese patients with IBS-C.
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Affiliation(s)
- S Fukudo
- Department of Behavioral Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - A Nakajima
- Department of Gastroenterology, Yokohama City University, Yokohama, Japan
| | - Y Fujiyama
- Shiga University of Medical Science, Ohtsu, Japan
| | - M Kosako
- Japan-Asia Clinical Development 2, Development, Astellas Pharma Inc., Tokyo, Japan
| | - A Nakagawa
- Japan-Asia Clinical Development 2, Development, Astellas Pharma Inc., Tokyo, Japan
| | - H Akiho
- Japan-Asia Clinical Development 2, Development, Astellas Pharma Inc., Tokyo, Japan
| | - Y Nakashima
- Japan-Asia Data Science, Development, Astellas Pharma Inc., Tokyo, Japan
| | - J M Johnston
- Ironwood Pharmaceuticals Inc., Cambridge, MA, USA
| | - H Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
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Fujimoto H, Nagashima T, Sangai T, Hayama S, Ishigami E, Masuda T, Nakagawa A, Teranaka R, Otsuka M. Immediate partial breast reconstruction with chest wall perforator flaps. Eur J Cancer 2018. [DOI: 10.1016/s0959-8049(18)30470-2] [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: 11/29/2022]
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8
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Kondo Y, An T, Nakagawa A, Matsunaga K, Kikkawa A, Irioka T. Risk of ceftriaxone-associated pseudolithiasis during therapy for bacterial meningitis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Kawachi H, Fujimoto D, Morimoto T, Ito M, Teraoka S, Sato Y, Nagata K, Nakagawa A, Otsuka K, Imai Y, Tomii K. Characteristics and prognostic impact of advanced non-small-cell lung cancer patients who were ineligible for clinical trials. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx380.075] [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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Nakano T, Sato C, Yamada M, Nakagawa A, Yamamoto H, Fujishima F, Tominaga T, Satomi S, Ohuchi N. A laser-induced pulsed water jet for layer-selective submucosal dissection of the esophagus. Laser Ther 2016; 25:185-191. [PMID: 27853343 DOI: 10.5978/islsm.16-or-14] [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: 11/06/2022]
Abstract
Background and aims: Conventional water jet devices have been used for injecting fluid to lift up lesions during endoscopic submucosal dissection or endoscopic mucosal resection procedures. However, these devices cannot dissect the submucosal layer effectively. Here we aim to elucidate the dissection capability of a laser-induced pulsed water jet and to clarify the mechanism of dissection with layer selectivity. Materials (Subjects) and methods: Pulsed water jets were ejected from a stainless nozzle by accelerating saline using the energy of a pulsed holmium: yttrium-aluminum-garnet laser. The impact force (strength) of the jet was evaluated using a force meter. Injection of the pulsed jet into the submucosal layer was documented by high-speed imaging. The physical properties of the swine esophagus were evaluated by measuring the breaking strength. Submucosal dissection of the swine esophagus was performed and the resection bed was evaluated histologically. Results: Submucosal dissection of the esophagus was accomplished at an impact force of 1.11-1.47 N/pulse (laser energy: 1.1-1.5 J/pulse; standoff distance: 60 mm). Histological specimens showed clear dissection at the submucosal layer without thermal injury. The mean static breaking strength of the submucosa (0.11 ± 0.04 MPa) was significantly lower than that of the mucosa (1.32 ± 0.18 MPa), and propria muscle (1.45 ± 0.16 MPa). Conclusions: The pulsed water jet device showed potential for achieving selective submucosal dissection. It could achieve mucosal, submucosal, and muscle layer selectivity owing to the varied breaking strengths.
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Affiliation(s)
- T Nakano
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8574, Japan
| | - C Sato
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8574, Japan
| | - M Yamada
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8574, Japan
| | - A Nakagawa
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8574, Japan
| | - H Yamamoto
- Department of Cardiovascular medicine, Tohoku University Graduate School of medicine, Sendai, Miyagi, 980-8574, Japan
| | - F Fujishima
- Department of Pathology, Tohoku University Hospital, Sendai, Miyagi 980-8574, Japan
| | - T Tominaga
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8574, Japan
| | - S Satomi
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8574, Japan
| | - N Ohuchi
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8574, Japan
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Mori N, Higashiguchi T, Ito A, Murai M, Ohara H, Tsuzuki N, Nakagawa A, Awa H, Miyoshi A, Akihiko F, Uekuzu Y. PT08.1: Pinch Grip Strength is a Simple Indicator for Prognosis and Muscle Depletion in Patients with Far Advanced Cancer. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30326-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Fukuhara A, Tsujita T, Sase K, Konno A, Nakagawa A, Endo T, Tominaga T, Jiang X, Abiko S, Uchiyama M. Securing an optimum operating field without undesired tissue damage in neurosurgery. Adv Robot 2016. [DOI: 10.1080/01691864.2016.1200483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kato T, Arafune T, Washio T, Nakagawa A, Ogawa Y, Tominaga T, Sakuma I, Kobayashi E. Measurement and analysis of internal stress distributions created in gelatin simulated-brain tissue by a pulsed laser-induced liquid jet. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:4419-22. [PMID: 25570972 DOI: 10.1109/embc.2014.6944604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Transsphenoidal surgery is currently employed to treat complex lesions beyond the sella turcica; however, the procedure can be limited by difficulties encountered in dealing with small blood vessels, deep and narrow working spaces, and awkward working angles. To overcome these problems, we have developed a pulsed laser-induced liquid jet system that can dissect tumor tissue while preserving fine blood vessels within deep and narrow working spaces. We have previously evaluated the utility and safety of this procedure. However, the effects of the pulsejet after being injected into the brain are not yet well understood. Especially, the behavior of the stress distribution created by the jet is important because it has recently been reported that high acoustic pressures can affect the brain. In this study, we measured internal stress distributions in a gelatin simulated-brain using photoelasticity experiments. We used a high-speed camera with an image sensor on which an array of micropolarizers was attached to measure the stresses and the shear wave created when the pulsejet enters the simulated brain.
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Nakagawa A, Sasagawa M, Yamamoto K, Kajinami K. Long-term effects of vcresc® (a vitamin micronutrient beverage) on vitamin and homocysteine levels in patients with atherosclerosis. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.924] [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: 10/23/2022]
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Andoh Y, Yoshii N, Yamada A, Fujimoto K, Kojima H, Mizutani K, Nakagawa A, Nomoto A, Okazaki S. All-atom molecular dynamics calculation study of entire poliovirus empty capsids in solution. J Chem Phys 2014; 141:165101. [DOI: 10.1063/1.4897557] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Y. Andoh
- Department of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - N. Yoshii
- Department of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - A. Yamada
- Department of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - K. Fujimoto
- Department of Pharmacy, College of Pharmaceutical Sciences, Ritsumeikan University, Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - H. Kojima
- Department of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - K. Mizutani
- Department of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - A. Nakagawa
- Institute for Protein Research, Osaka University, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - A. Nomoto
- Institute of Microbial Chemistry, Kamiosaki, Shinagawa-ku, Tokyo 141-0021, Japan
| | - S. Okazaki
- Department of Applied Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Miyaki T, Tsujimura H, Kumagai K, Nakamura R, Yoshii A, Okubo Y, Iwase T, Nakagawa A, Yamamoto N. Does Administration Order of Sequential Fec- Docetaxel As Adjuvant Chemotherapy for Breast Cancer Affect on the Toxicities? : a Retrospective Analysis from a Single-Center. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu327.54] [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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Ogawa Y, Nakagawa A, Washio T, Arafune T, Tominaga T. Tissue Dissection before Direct Manipulation to the Pathology with Pulsed Laser-Induced Liquid Jet System in Skull Base Surgery. Skull Base Surg 2014. [DOI: 10.1055/s-0034-1383942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Takeshima Y, Yagi M, Lee T, Kusunoki N, Ojima I, Minami S, Asai T, Nakagawa A, Iijima K, Matsuo M. P.11.16 Three-dimensional gait analysis of Duchenne muscular dystrophy: A trial to evaluate the therapeutic effect of RNA/ENA chimera antisense oligonucleotide that induces dystrophin exon 45 skipping. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Oyazato Y, Nakagawa A, Nishiyama A, Adachi M. [A case of alternating hemiplegia of childhood effectively treated with goreisan of kampo]. No To Hattatsu 2013; 45:323-325. [PMID: 23951947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Arafune T, Kato T, Kobayashi E, Washio T, Nakagawa A, Ogawa Y, Tominaga T. Analysis of liquid reservoir effect induced by pulsed laser liquid jet. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2013:918-921. [PMID: 24109838 DOI: 10.1109/embc.2013.6609651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A pulsed-laser-induced liquid jet (LILJ) is a new device used in neurosurgery to simultaneously crush, incise, and aspirate tissues and tumors, preserving blood vessels and nerves. In addition, a feature of a pulsed LILJ is its ability to excavate tissue at constant depth while a liquid jet is being repeatedly focused at the same point. To clarify the mechanisms of constant depth of excavation, we employed a gelatin phantom and extracted brain tissue using a high-speed camera, and we then confirmed that the liquid-reservoir-induced LILJ played an important role in enabling the safe usage of an LILJ.
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Nakagawa A, Ohno T, Noda S, Kubo N, Kuwako K, Saito J, Nakano T. The Efficacy of Reducing Point A Dose in Image Guided Brachytherapy for Stage I-II Cervical Cancer of the Atrophic Small Uterus. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ohta T, Yamamoto M, Numata M, Iseki S, Kitagawa H, Kayahara M, Nagakawa T, Miwa K, Nakagawa A, Morise T, Ohkuma S, Terada T. Differential expression of vacuolar-type H+-ATPase between normal human pancreatic islet B-cells and insulinoma cells. Int J Oncol 2012; 11:597-601. [PMID: 21528252 DOI: 10.3892/ijo.11.3.597] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Recent studies have shown that bafilomycin A(1)-sensitive vacuolar type H+-ATPase (V-ATPase) is responsible for the acidification of intracellular compartments in eukaryotic cells. B-cells of pancreatic islets also are known to include acidifying secretory vesicles which are the major cellular site of proinsulin to insulin conversion. This study was designed to examine immunohistochemically the level of V-ATPase protein expression in normal pancreas (five cases) and benign insulinoma (six cases), using mouse monoclonal antibody raised against the 116 kDa subunit of human V-ATPase. Light microscopic immunohistochemistry revealed that moderate to marked V-ATPase expression was observed in normal islet B-cells, while insulinoma cells in each case expressed V-ATPase faintly or not at all. By immunoelectron microscopy, the majority of secretory vesicles in insulinoma cells did not express V-ATPase protein at their endomembranes, although mild to marked V-ATPase expression was noted at the endomembrane of secretory vesicles in normal islet B-cells. Thus, differential expression of V-ATPase protein at the endomembrane of secretory vesicles was observed between normal islet B-cells and insulinoma cells. These findings suggest that the reduced activity of V-ATPase per insulin secretory vesicle in insulinoma cells have a profound effect on the efficiency of proteolytic cleavage of proinsulin.
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Affiliation(s)
- T Ohta
- KANAZAWA UNIV,SCH MED,DEPT ANAT,KANAZAWA,ISHIKAWA 920,JAPAN. KANAZAWA UNIV,SCH MED,DEPT INTERNAL MED,KANAZAWA,ISHIKAWA 920,JAPAN. KANAZAWA UNIV,FAC PHARMACEUT SCI,DEPT BIOCHEM,KANAZAWA,ISHIKAWA 920,JAPAN. TOTTORI UNIV,FAC MED,DEPT PATHOL,YONAGO,TOTTORI 683,JAPAN
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Otsuka K, Katakami N, Hata A, Kaji R, Fujita S, Nagata K, Nakagawa A, Tachikawa R, Otsuka K, Tomii K. Treatments and Outcome of NSCLC Patients who Receive Gefitinib for More than Three Years. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33886-2] [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: 11/24/2022] Open
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Nishimura F, Hidaka T, Nakagawa A, Yorozu H, Tsuno H. Removal of high concentration ammonia from wastewater by a combination of partial nitrification and anammox treatment. Environ Technol 2012; 33:1485-1489. [PMID: 22988605 DOI: 10.1080/09593330.2012.655322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Attached growth reactors were developed separately for solids retention time (SRT)-controlled partial nitrification and for anaerobic ammonia oxidation (Anammox) treatment, and a new nitrogen removal process is proposed for wastewater containing highly concentrated ammonia. For partial nitrification, an attached growth medium of polyurethane foam was used. Partial nitrification was achieved stably under a SRT of 4 days, and the abundance ratio of NO2(-)-N to the sum of NH4(+)-N, NO2(-)-N and NO3(-)-N was approximately 0.8 after 10 days. Under a SRT of4 days, the amoA gene concentrations of ammonia-oxidizing bacteria increased from 1 x 10(8) to 7 x 10(8) copies/l, whereas the 16S ribosomal RNA (16S rRNA) gene concentrations of nitrite-oxidizing bacteria did not increase. These results indicate that SRT-controlled operation is a promising technology for achieving partial nitrification. For the Anammox treatment, an attached growth medium of non-woven fabric was used. Inorganic nitrogen removal of approximately 80-90% was observed at an inorganic nitrogen loading rate of over 10 kgN/(m3-medium.d) and an influent nitrogen concentration of 400 mgN/l. Our non-woven fabric reactor showed similar or superior Anammox performance to that reported previously. By using a combination of these two rectors, we can develop a method that combines partial nitrification and Anammox treatment for effective and stable nitrogen removal.
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Affiliation(s)
- F Nishimura
- Department of Environmental Engineering, Kyoto University, Kyoto, Japan
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Ogawa Y, Nakagawa A, Takayama K, Tominaga T. Pulsed Laser-Induced Liquid Jet for Skull Base Tumor Removal with Vascular Preservation through the Transsphenoidal Approach. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Nakagawa A, Yokoyama Y, Suzuki H, Shoji K, Watanabe Y, Imamura A, Kokuryo T, Nagino M. Real-time monitoring of liver damage during experimental ischaemia–reperfusion using a nitric oxide sensor. Br J Surg 2012; 99:1120-8. [DOI: 10.1002/bjs.8817] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2012] [Indexed: 11/11/2022]
Abstract
Abstract
Background
Hepatic ischaemia–reperfusion (IR) injury may lead to liver damage during liver surgery, and intrahepatic nitric oxide (NO) levels may play a role in this context. The aim of this study was to demonstrate real-time changes in intrahepatic NO concentration during IR and to correlate potential hepatic NO production with liver damage using a selective NO sensor.
Methods
Wistar rats were exposed to 15 min of hepatic ischaemia followed by reperfusion, after which changes in intrahepatic NO levels were measured using an NO sensor. Additionally, rats were exposed to five successive periods of IR, each consisting of 15 min ischaemia followed by 5 or 15 min reperfusion, and hepatic damage was evaluated by blood tests and histological examination. Hepatic expression of Akt, phosphorylated Akt, endothelial nitric oxide synthase (eNOS) and phosphorylated eNOS was examined at different time points during and after IR by western blot and immunohistochemical analysis.
Results
During ischaemia, intrahepatic NO levels increased and reached a plateau at approximately 10 min. Repeated 15 min ischaemia–5 min reperfusion cycles reduced the maximum amount of NO produced during ischaemia gradually, and almost no NO production was observed during the fifth period of ischaemia. NO production following repeated ischaemia was proportional to the degree of hepatic viability. Phosphorylated eNOS was upregulated and correlated with the level of NO production during hepatic ischaemia.
Conclusion
Intrahepatic NO levels decrease during repeated IR in rats. Real-time monitoring of intrahepatic NO levels is useful for the prediction of IR-related liver injury during experimental liver surgery.
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Affiliation(s)
- A Nakagawa
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Tokyo, Japan
| | - Y Yokoyama
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Tokyo, Japan
| | - H Suzuki
- Department of Life and Reproduction Science, Section of Biochemistry, University of Verona, Verona, Italy
| | - K Shoji
- Faculty of Human Arts and Science, University of Human Arts and Science, Tokyo, Japan
| | - Y Watanabe
- Department of Pharmacology, High Technology Research Centre, Showa Pharmaceutical University, Tokyo, Japan
| | - A Imamura
- Inter Medical Company Limited, Nagoya, University of Human Arts and Science, Tokyo, Japan
| | - T Kokuryo
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Tokyo, Japan
| | - M Nagino
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Tokyo, Japan
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Kusunoki M, Ozaki T, Nakagawa A, Hase T. Distant residues of maize glutamine synthetase affecting substrate affinity. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311080378] [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: 04/03/2023] Open
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Kihira K, Shimizu Y, Shomura Y, Kitamura M, Nakagawa A, Tsukihara T, Ueda T, Ochi K, Higuchi Y. Crystal structure analysis of release factor 3. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311095687] [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: 11/10/2022] Open
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Takeshita K, Suetake I, Yamashita E, Suga M, Narita H, Nakagawa A, Tajima S. Structural insight into maintenance methylation by mouse DNA methyltransferase 1. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311092865] [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: 04/03/2023] Open
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30
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Ohki I, Furuita K, Hayashi K, Taoka K, Tsuji H, Nakagawa A, Shimamoto K, Kojima C. Structural basis for floral induction by rice florigen Hd3a. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311091161] [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: 11/10/2022] Open
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31
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Miyazaki N, Akita F, Nakagawa A, Omura T, Iwasaki K. Structural analysis of rice dwarf virus in vitroand in vivo. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311094293] [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: 11/10/2022] Open
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32
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Nakagawa A, Yamashita E, Umena Y, Yoshimura M, Suzuki M, Hasegawa K, Furukawa Y, Ohata T, Kumasaka T, Ueno G, Yamamoto M, Yoshikawa S, Tsukihara T. SR beamline for macromolecular assemblies by the Institute for Protein Research. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311091082] [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: 11/10/2022] Open
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33
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Akita F, Higashiura A, Shimizu T, Pu Y, Suzuki M, Uehara-Ichiki T, Sasaya T, Tsukihara T, Nakagawa A, Omura T. Crystal structure of the viroplasm matrix protein P9-1 of Rice black streaked dwarf virus. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311089665] [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: 11/10/2022] Open
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34
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Yonehara R, Yamashita E, Harada K, Sato N, Matsuura T, Murakami S, Nakae T, Nakagawa A. Crystal structure analysis of multidrug transporter MexB. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311081220] [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: 11/10/2022] Open
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35
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Okamura-Ikeda K, Hosaka H, Maita N, Fujiwara K, Yoshizawa AC, Nakagawa A, Taniguchi H. Crystal structure of T-H protein complex of the glycine cleavage system. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311089082] [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: 11/11/2022] Open
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36
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Tagaya N, Tsumuraya M, Nakagawa A, Iwasaki Y, Kato H, Kubota K. Indocyanine green (ICG) fluorescence imaging versus radioactive colloid for sentinel lymph node identification in patients with breast cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.674] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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37
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Miyazaki N, Wu B, Hagiwara K, Wang CY, Xing L, Hammar L, Higashiura A, Tsukihara T, Nakagawa A, Omura T, Cheng RH. The functional organization of the internal components of Rice dwarf virus. J Biochem 2010; 147:843-50. [DOI: 10.1093/jb/mvq017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [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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Barbui C, Cipriani A, Furukawa TA, Salanti G, Higgins JPT, Churchill R, Watanabe N, Nakagawa A, Omori IM, Geddes JR. Making the best use of available evidence: the case of new generation antidepressants: A response to: Are all antidepressants equal? Evidence-Based Mental Health 2009; 12:101-4. [DOI: 10.1136/ebmh.12.4.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hori Y, Kikuchi M, Nakagawa A, Yonezawa T, Miura H, Ohnami Y. Plasma atrial natriuretic peptide in healthy calves and calves with congenital heart disease. J Vet Intern Med 2009; 23:653-6. [PMID: 19658257 DOI: 10.1111/j.1939-1676.2009.0293.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The basic and clinical implications of evaluating plasma atrial natriuretic peptide (ANP) concentration in calves are unknown. OBJECTIVE To investigate the relationship between the plasma ANP concentration and left ventricular end-diastolic pressure (LVEDP) in healthy calves subjected to volume overload (Study 1), and to compare the plasma ANP concentration in calves with or without heart disease (Study 2). ANIMALS Six healthy calves were used in Study 1; disease calves and sick calves with (n = 9) and without congenital heart disease (CHD) (n = 9) were used in Study 2. METHODS In Study 1, LVEDP in anesthetized calves was manipulated by IV administration of acetated Ringer's solution (rate of 100 mL/kg/h for 20 minutes) and furosemide. In Study 2, disease calves were identified by blood examination and echocardiography or pathological examination. The plasma ANP concentration was determined by a chemiluminescence enzyme immunoassay for human alpha-ANP. RESULTS In Study 1, preloading significantly increased the plasma ANP concentration (36 +/- 20-185 +/- 156, P < .01) and LVEDP (-11 +/- 7-2 +/- 12, P < .01) from the baseline. Furthermore, plasma ANP concentrations were strongly correlated with LVEDP (r= 0.61). In Study 2, the plasma ANP concentration was significantly higher in the calves with CHD than in the calves without heart disease (220 [67-970] versus 31 [10-86]; mean [range], P < .001). CONCLUSIONS AND CLINICAL IMPORTANCE Measurement of plasma ANP concentrations in calves can provide additional information useful for predicting hemodynamic abnormalities.
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Affiliation(s)
- Y Hori
- Laboratory of Small Animal Internal Medicine, School of Veterinary Medicine, Kitasato University, Aomori, Japan
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Hosseini SHR, Menezes V, Moosavi-Nejad S, Ohki T, Nakagawa A, Tominaga T, Takayama K. Development of shock wave assisted therapeutic devices and establishment of shock wave therapy. MINIM INVASIV THER 2009; 15:230-40. [PMID: 16966137 DOI: 10.1080/13645700600836315] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
In order to exploit systems for shock wave therapy, we are working for the development of clinical devices that are based on the concept of shock waves or related phenomena. The paper describes these new therapeutic devices designed for the minimally invasive approach to vascular thromboloysis, selective dissection of tissues, and drug or DNA delivery. To investigate the response of cells to shock loading, a precise method of shock waves generation in space and time has been developed. This method has been studied for application in cardiovascular therapy, cancer treatment, and cranioplasty in close vicinity of the brain. A laser ablation shock wave assisted particle acceleration device has been developed for delivering drug and DNA into soft targets in the human body. The penetration depth of microparticles observed in the experimental targets is believed to be sufficient for pharmacological treatments. In order to achieve an efficient method for rapid revascularization of cerebral thrombosis, a laser induced liquid jet (LILJ) system has been developed. The LILJ has been successfully applied for selective dissection of soft tissue preserving nerve and blood vessels. The system has been further improved by using piezoelectric actuators to drive the liquid jets, as an alternative to pulse laser.
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Affiliation(s)
- S H R Hosseini
- Biomedical Engineering Research Organization, Tohoku University, Sendai, Japan.
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41
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Omori IM, Watanabe N, Nakagawa A, Akechi T, Cipriani A, Barbui C, McGuire H, Churchill R, Furukawa TA. Efficacy, tolerability and side-effect profile of fluvoxamine for major depression: meta-analysis. J Psychopharmacol 2009; 23:539-50. [PMID: 18562407 DOI: 10.1177/0269881108089876] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Fluvoxamine, one of the oldest selective serotonin reuptaking inhibitors, is commonly prescribed to patients with major depression. Several studies have reviewed the efficacy and tolerability of fluvoxamine for the treatment of major depression. However, these reviews are outdated, have not been systematic and/or suffered from several methodological weaknesses. We conducted a systematic review to synthesize the best available evidence on the efficacy of fluvoxamine for adult patients suffering from major depression in comparison with other active antidepressive agents. Relevant randomized controlled trials were identified through a comprehensive search. The primary outcome was a relative risk of response, and the secondary outcome was a relative risk of remission. Tolerability and side-effect profile were also examined. Fifty-three trials were included. There were no large differences between fluvoxamine and any other antidepressants in terms of efficacy and tolerability. There is evidence of differing side effect profiles, especially when comparing gastrointestinal side effects between fluvoxamine and tricyclics. Clinicians should focus on practically or clinically relevant differences including those in side-effect profiles.
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Affiliation(s)
- I M Omori
- Department of Psychiatry and Cognitive-Behavioral Medicine, Nagoya City University Graduate School of Medical Sciences, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan.
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Nakagawa A, Abe T, Chiba S, Endo H, Meguro K, Kashiwaba Y, Ojima T, Aota K, Niikura I, Kashiwaba Y, Fujiwara T. Characteristics of high-quality homoepitaxial ZnO (0001) films grown by the plasma-assisted reactive evaporation method. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pssc.200881325] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Hirano T, Nakagawa A, Ohki T, Uenohara H, Takayama K, Tominaga T. A laser-induced liquid jet catheter system: a novel endovascular device for rapid and reliable fibrinolysis in acute cerebral embolism. Minim Invasive Neurosurg 2008; 51:324-328. [PMID: 19061141 DOI: 10.1055/s-0028-1085429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE Mechanical removal of intravascular clots in addition to administration of tissue plasminogen activator are both desirable for improved outcome in acute embolic stroke. We have developed a novel endovascular catheter system for rapid and reliable mechanical recanalization of cerebral embolisms with little or no requirement for fibrinolytic agents. Here, we describe the evaluation of this device in vitro. MATERIALS Pulsed liquid jets were generated and ejected from the catheter exit by accelerating cold physiological saline (4 degrees C, 40 mL/h) using the energy of a pulsed holmium:yttrium-aluminum-garnet (YAG) laser (3 Hz, 1.2 W). Accessibility beyond the tortuous cavernous portion of the internal carotid artery to the M1 and A1 regions was confirmed using a transparent model of the human cerebral artery. Mechanical characteristics of the liquid jets were evaluated with a high-speed camera. Liquid jets of physiological saline or urokinase solution (1,200 IU/mL) were exposed to artificial thrombi made of human blood under temperature monitoring. Remnants of thrombi were collected and incubated at 37 degrees C for 10 min for estimation of fibrinolysis rates. RESULTS The jet velocity (maximum: 5 m/s) was controlled by changing the laser energy. The fibrinolysis rates (mean+/-SD) after exposure to jets of saline or urokinase solution for 45 s were 62.2+/-16.4 and 94.0+/-3.4%, respectively, and were significantly better than the rate of 8.1+/-2.0% with administration of urokinase alone. The local temperature rise was less than 8 degrees C. CONCLUSIONS The results show that the laser-induced liquid jet catheter system may be a powerful tool for mechanical destruction of emboli and augmentation of the effect of fibrinolytic agents beyond the tortuous part of the internal carotid artery.
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Affiliation(s)
- T Hirano
- 1Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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Iwasaku T, Hirooka K, Taniguchi T, Hamano G, Utsunomiya Y, Nakagawa A, Koide M, Ishizu T, Yamato M, Sasaki N, Yamamoto H, Kawaguchi Y, Mizuno H, Koretsune Y, Kusuoka H, Yasumura Y. Successful catheter ablation to accessory atrioventricular pathway as cardiac resynchronization therapy in a patient with dilated cardiomyopathy. Europace 2008; 11:121-3. [DOI: 10.1093/europace/eun318] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [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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45
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Osawa H, Nishii T, Suzuki Y, Numata M, Shigemasa K, Tanabe H, Tani K, Shiraishi R, Katayama K, Nakagawa A, Jin Y, Yoshimura N. [Experience of chest wall reconstruction with newly developed material]. Kyobu Geka 2008; 61:1023-1025. [PMID: 19048900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
After the chest wall resection, its reconstruction is often needed. A 45-year-old male lung adenocarcinoma patient with chest wall invasion underwent upper lobectomy of the right lung with partial resection of 4-6th ribs. The size of the removed chest wall was 11 x 6.5 cm. We reconstructed the chest wall with Bard Composix E/X Mesh. This prosthesis is consisted of a polypropylene mesh and an expanded polytetrafluoroethylene sheet This material is seems to be useful in the reconstruction of chest wall in both preventing pulmonary adhesion and enabling good wound healing.
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Affiliation(s)
- H Osawa
- Department of Surgery, Hiratsuka Kyosai Hospital, Hiratsuka, Japan
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Yuzawa H, Higano S, Mugikura S, Umetsu A, Murata T, Nakagawa A, Koyama A, Takahashi S. Pseudo-subarachnoid hemorrhage found in patients with postresuscitation encephalopathy: characteristics of CT findings and clinical importance. AJNR Am J Neuroradiol 2008; 29:1544-9. [PMID: 18556358 DOI: 10.3174/ajnr.a1167] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE High-attenuation areas (HDAs) called pseudo-subarachnoid hemorrhages (SAHs) may develop in some patients resuscitated from cardiopulmonary arrest (CPA), though no hemorrhage has occurred. We investigated the imaging characteristics and clinical significance of this phenomenon. MATERIALS AND METHODS CT images of consecutive patients resuscitated from nontraumatic CPA were reviewed and classified into cases with pseudo-SAH (pseudo-SAH[+] group, n = 9), those without pseudo-SAH (pseudo-SAH[-] group, n = 28), and those with true SAH (SAH-CPA group, n = 8). Typical patients with SAH (SAH group, n = 13) and 20 healthy individuals were also extracted as control groups. The degree of brain edema was scored visually as none, mild, or severe, and the CT values of the HDAs and brain parenchyma were measured. These parameters were compared among the groups. We also compared the prognosis between the pseudo-SAH(+) and pseudo-SAH(-) groups. RESULTS On CT, pseudo-SAH was associated with severe brain edema, whereas there was mild or no edema without pseudo-SAH. The CT values of the HDAs in the pseudo-SAH(+) group were significantly lower than those of the CPA-SAH and SAH groups (P < .0001). The brain parenchyma of the pseudo-SAH(+) group had the lowest CT values among all of the groups (P < .0001). The prognosis of the pseudo-SAH(+) group was significantly poorer than that of the pseudo-SAH(-) group in terms of both clinical outcome (P = .02) and survival (P = .046). CONCLUSION The findings of pseudo-SAH have several imaging characteristics differing from SAH and predict a poor prognosis. This provides important information that can be used for deciding treatment strategies.
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Affiliation(s)
- H Yuzawa
- Department of Radiology, School of Medicine, Tohoku University Hospital, Sendai, Miyagi, Japan.
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Furubayashi N, Inaka K, Shiba K, Katayama Y, Nakagawa A. A dynamic light scattering system combined with a conventional chromatography for sample preparation. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308092027] [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: 11/10/2022] Open
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48
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Miyazaki N, Wang CY, Higashiura A, Nakagawa A, Li TC, Takeda N, Xing L, Tomitake T, Miyamura T, Cheng R. Crystallization and structure determination of recombinant hepatitis E virus-like particle. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308089538] [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: 11/11/2022] Open
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49
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Omura T, Miyazaki N, Naitow H, Wei T, Shimizu T, Cheng R, Nakagawa A, Tsukihara T. The assembly process of the double-layered capsids of phytoreoviruses. Acta Crystallogr A 2008. [DOI: 10.1107/s010876730809781x] [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: 11/10/2022] Open
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50
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Kawai F, Unzai S, Tame R, Park SY, Sato M, Inaka K, Tanaka H, Nakagawa A. Expression, purification and crystallization of LMW-PBP 4 and 5 from Haemophilus influenzae. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308088958] [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: 11/10/2022] Open
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