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Miyahara S, Takahashi H, Akita H, Sasaki K, Mukai Y, Iwagami Y, Hasegawa S, Yamada D, Tomimaru Y, Noda T, Wada H, Kobayashi S, Doki Y, Eguchi H. ASO Author Reflections: A Novel Combination Index of Sialyl-Lewis Antigen-Related Tumor Markers Enhances Predictive Significance in Patients with a Modest Radiological Response to Neoadjuvant Treatment for Pancreatic Cancer. Ann Surg Oncol 2024; 31:2971-2972. [PMID: 38363472 DOI: 10.1245/s10434-024-15021-5] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 01/21/2024] [Indexed: 02/17/2024]
Affiliation(s)
- Satoru Miyahara
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Hidenori Takahashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan.
| | - Hirofumi Akita
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Kazuki Sasaki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yosuke Mukai
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Yoshifumi Iwagami
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Shinichiro Hasegawa
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Daisaku Yamada
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yoshito Tomimaru
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Takehiro Noda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hiroshi Wada
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Shogo Kobayashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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Miyahara S, Takahashi H, Akita H, Sasaki K, Mukai Y, Iwagami Y, Hasegawa S, Yamada D, Tomimaru Y, Noda T, Wada H, Kobayashi S, Doki Y, Eguchi H. Prognostic Significance of Biologic Factors in Patients with a Modest Radiologic Response to Neoadjuvant Treatment for Resectable and Borderline Resectable Pancreatic Cancers: Impact of the Combination Index of Sialyl-Lewis Antigen-Related Tumor Markers. Ann Surg Oncol 2024; 31:2932-2942. [PMID: 38368291 DOI: 10.1245/s10434-024-14945-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 09/25/2023] [Accepted: 01/04/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND Appropriate re-evaluation after neoadjuvant treatment (NAT) is important for optimal treatment selection. Nonetheless, determining the operative eligibility of patients with a modest radiologic response remains controversial. This study aimed to assess the prognostic significance of biologic factors for patients showing a modest radiologic response to NAT and investigate the tumor markers (TMs), CA19-9 alone, DUPAN-II alone, and their combination, to create an index that combines these sialyl-Lewis antigen-related TMs associated with treatment outcomes. METHODS This study enrolled patients deemed to have a "stable disease" by RECIST classification with slight progression (tumor size increase rate, ≤20%) as their radiologic response after NAT. A sialyl-Lewis-related index (sLe index), calculated by adding one fourth of the serum DUPAN-II value to the CA19-9 value, was created. The prognostic significances of CA19-9, DUPAN-II, and the sLe index were assessed in relation to postoperative outcomes. RESULTS An sLe index lower than the cutoff value (45.25) was significantly associated with favorable disease-free survival. Moreover, the post-NAT sLe index had a higher area under the curve value for recurrence within 24 months than the post-NAT levels of CA19-9 or DUPAN-II alone. Multivariable analysis showed that a post-NAT sLe index higher than 45.25 was the single independent predictive factor for recurrence within 24 months. CONCLUSIONS Additional evaluation of biologic factors can potentially enhance patient selection, particularly for patients showing a limited radiologic response to NAT. The authors' index is a simple indicator for the biologic evaluation of multiple combined sialyl-Lewis antigen-related TMs and may offer a better predictive significance.
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Affiliation(s)
- Satoru Miyahara
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Hidenori Takahashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan.
| | - Hirofumi Akita
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Kazuki Sasaki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yosuke Mukai
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Yoshifumi Iwagami
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Shinichiro Hasegawa
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Daisaku Yamada
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yoshito Tomimaru
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Takehiro Noda
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hiroshi Wada
- Department of Gastroenterological Surgery, Osaka International Cancer Institute, Osaka City, Osaka, Japan
| | - Shogo Kobayashi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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Kusunoki C, Hamakawa T, Nishikawa K, Sato H, Imamura S, Miyahara S, Sakano Y, Miyazaki H, Seto H, Ueda R, Toshiyama R, Miyo M, Takahashi Y, Sakai K, Miyake M, Miyamoto A, Kato T, Mori K, Hirao M. Hybrid approach with laparoscopic wall-inversion surgery and single-incision intragastric surgery for intraluminal gastrointestinal stromal tumor: A case report. Asian J Endosc Surg 2021; 14:794-797. [PMID: 33590965 DOI: 10.1111/ases.12927] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 01/25/2021] [Indexed: 11/26/2022]
Abstract
Laparoscopic wedge resection (LWR) for intraluminal gastrointestinal stromal tumor (GIST) leads to excessive resection of normal gastric wall. We report a case of GIST around the cardia successfully treated with full-thickness partial resection using a hybrid approach of laparoscopic surgery and single-incision intragastric surgery (SIIGS). A 69-year-old woman had a 5 cm intraluminal GIST at the posterior wall around the cardia. Submucosal injection of glycerin and indigo carmine was performed with transoral endoscopy. Circumferential seromuscular incision followed by placement of seromuscular sutures to invert the lesion into the stomach was performed under laparoscopy. By SIIGS, resection of the inverted mucosa and retrieval of the tumor were completed. A hybrid approach consisting of laparoscopic wall-inversion surgery and SIIGS was useful for intraluminal GIST and may expand the indications for laparoscopic wall-inversion surgery by removing size limitations.
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Affiliation(s)
- Chikako Kusunoki
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Takuya Hamakawa
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Kazuhiro Nishikawa
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Hiromichi Sato
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Sayumi Imamura
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Satoru Miyahara
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Yu Sakano
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Hazuki Miyazaki
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Hiroto Seto
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Ryuta Ueda
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Reishi Toshiyama
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Masaaki Miyo
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Yusuke Takahashi
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Kenji Sakai
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Masakazu Miyake
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Atsushi Miyamoto
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Takeshi Kato
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Kiyoshi Mori
- Department of Diagnostic Pathology, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Motohiro Hirao
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
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Opollo V, Sun X, Lando R, Miyahara S, Torres TS, Hosseinipour MC, Bisson GP, Kumwenda J, Gupta A, Nyirenda M, Katende K, Suryavanshi N, Beulah F, Shah NS. The effect of TB treatment on health-related quality of life for people with advanced HIV. Int J Tuberc Lung Dis 2021; 24:910-915. [PMID: 33156757 DOI: 10.5588/ijtld.19.0716] [Citation(s) in RCA: 1] [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: 11/10/2022] Open
Abstract
BACKGROUND: Study A5274 was an open-label trial of people with HIV (PLHIV) with CD4 cell count <50 cells/µL who were randomized to empirical TB treatment vs. isoniazid preventive therapy (IPT) in addition to antiretroviral therapy (ART). We evaluated health-related quality of life (HRQoL) by study arm, changes over time, and association with sociodemographic and clinical factors.METHODS: Participants aged >13 years were enrolled from outpatient clinics in 10 countries. HRQoL was assessed at Weeks 0, 8, 24 and 96 with questions about daily activity, hospital or emergency room visits, and general health status. We used logistic regression to examine HRQoL by arm and association with sociodemographic and clinical factors.RESULTS: Among 850 participants (424 empiric arm, 426 IPT arm), HRQoL improved over time with no difference between arms. At baseline and Week 24, participants with WHO Stage 3 or 4 events, or those who had Grade 3 or 4 signs/symptoms, were significantly more likely to report poor HRQoL using the composite of four HRQoL measures.CONCLUSION: HRQoL improved substantially in both arms during the study period. These findings show that ART, TB screening, and IPT can not only reduce mortality, but also improve HRQoL in PLHIV with advanced disease.
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Affiliation(s)
- V Opollo
- Kenya Medical Research Institute, HIV-Research Branch, Kisumu, Kenya
| | - X Sun
- Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - R Lando
- Kenya Medical Research Institute, HIV-Research Branch, Kisumu, Kenya
| | - S Miyahara
- Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - T S Torres
- Instituto Nacional de Infectologia Evandro Chagas (INI-FIOCRUZ), Rio de Janeiro, RJ, Brazil
| | - M C Hosseinipour
- University of North Carolina School of Medicine, Chapel Hill, NC, USA, University of North Carolina Project, Lilongwe, Malawi
| | - G P Bisson
- Perlman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | | | - A Gupta
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - K Katende
- Joint Clinical Research Centre Clinical Research Site, Kampala, Uganda
| | - N Suryavanshi
- Byramjee Jeejeebhoy Government Medical College Clinical Trials Unit, Pune, India
| | - F Beulah
- YR Gaitonde Centre for AIDS Research and Education, Chennai Antiviral Research and Treatment Clinical Research Site, Chennai, India
| | - N S Shah
- Centers for Disease Control and Prevention, Atlanta, GA, USA
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Waseda R, Miyahara N, Moroga T, Wakahara J, Mei H, Yamamoto L, Imamura N, Miyahara S, Shiraishi T, Iwasaki A. P2.03-52 Correlation Between Inflammatory Markers and Oncological Outcomes in Surgically Resected Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Jenke A, Yazdanyar M, Immohr M, Miyahara S, Chekhoeva A, Kistner J, Boeken U, Lichtenberg A, Akhyari P. The Synthetic Adiponectin Receptor Agonist AdipoRon Attenuates Impairment of Cardiac Function Associated with Cardiopulmonary Bypass-Induced Systemic Inflammatory Response Syndrome. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678921] [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: 10/27/2022]
Affiliation(s)
- A. Jenke
- Universitätsklinikum Düsseldorf, Klinik für Kardiovaskuläre Chirurgie, Düsseldorf, Germany
| | - M. Yazdanyar
- Universitätsklinikum Düsseldorf, Klinik für Kardiovaskuläre Chirurgie, Düsseldorf, Germany
| | - M. Immohr
- Universitätsklinikum Düsseldorf, Klinik für Kardiovaskuläre Chirurgie, Düsseldorf, Germany
| | - S. Miyahara
- Universitätsklinikum Düsseldorf, Klinik für Kardiovaskuläre Chirurgie, Düsseldorf, Germany
| | - A. Chekhoeva
- Universitätsklinikum Düsseldorf, Klinik für Kardiovaskuläre Chirurgie, Düsseldorf, Germany
| | - J. Kistner
- Universitätsklinikum Düsseldorf, Klinik für Kardiovaskuläre Chirurgie, Düsseldorf, Germany
| | - U. Boeken
- Universitätsklinikum Düsseldorf, Klinik für Kardiovaskuläre Chirurgie, Düsseldorf, Germany
| | - A. Lichtenberg
- Universitätsklinikum Düsseldorf, Klinik für Kardiovaskuläre Chirurgie, Düsseldorf, Germany
| | - P. Akhyari
- Universitätsklinikum Düsseldorf, Klinik für Kardiovaskuläre Chirurgie, Düsseldorf, Germany
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Jenke A, Yazdanyar M, Miyahara S, Immohr M, Kistner J, Boeken U, Lichtenberg A, Akhyari P. The Synthetic Adiponectin Receptor Agonist AdipoRon Attenuates Impairment of Cardiac Function Associated with Cardiopulmonary Bypass-induced Systemic Inflammatory Response Syndrome. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627884] [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: 10/28/2022]
Affiliation(s)
- A. Jenke
- Klinik für Kardiovaskuläre Chirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - M. Yazdanyar
- Klinik für Kardiovaskuläre Chirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - S. Miyahara
- Klinik für Kardiovaskuläre Chirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - M. Immohr
- Klinik für Kardiovaskuläre Chirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - J. Kistner
- Klinik für Kardiovaskuläre Chirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - U. Boeken
- Klinik für Kardiovaskuläre Chirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - A. Lichtenberg
- Klinik für Kardiovaskuläre Chirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - P. Akhyari
- Klinik für Kardiovaskuläre Chirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
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Sugimura Y, Chekhoeva A, Toshmatova M, Miyahara S, Lichtenberg A, Assmann A, Akhyari P. The Effect of Side-Specific Coating with SDF1α and Fibronectin on the In Vivo Cellularization and Degeneration of Rat Aortic Decellularized Implants. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628074] [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: 10/28/2022]
Affiliation(s)
- Y. Sugimura
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - A. Chekhoeva
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - M. Toshmatova
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - S. Miyahara
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - A. Lichtenberg
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - A. Assmann
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - P. Akhyari
- Department of Cardiovascular Surgery and Research Group for Experimental Surgery, Heinrich Heine University, Düsseldorf, Germany
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Tokunaga M, Akaki M, Ito T, Miyahara S, Miyake A, Kuwahara H, Furukawa N. Magnetic control of transverse electric polarization in BiFeO3. Nat Commun 2015; 6:5878. [DOI: 10.1038/ncomms6878] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 11/17/2014] [Indexed: 11/09/2022] Open
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Okita Y, Miyahara S, Matsumori M, Inoue T, Morimoto N, Okada K. 047-I * TOTAL ARCH REPLACEMENT FROM LEFT THORACOTOMY. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.47] [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: 11/14/2022] Open
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Miyahara S, Sakamoto T, Nomura Y, Morimoto N, Inoue T, Matsumori M, Okada K, Okita Y. 328-I * MID-TERM OUTCOMES OF EMERGENT TOTAL ARCH REPLACEMENT FOR ACUTE TYPE A AORTIC DISSECTION. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.328] [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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Okita Y, Yamanaka K, Nomura Y, Kano H, Miyahara S, Omura A, Sakamoto T, Inoue T, Matsumori M, Okada K. 252 * STRATEGIES FOR THE TREATMENT OF AORTO-OESOPHAGEAL FISTULA. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.252] [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: 11/12/2022] Open
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Yamanaka K, Matsumori M, Omura A, Miyahara S, Sakamoto T, Inoue T, Okada K, Okita Y. 251 * SURGICAL STRATEGY FOR AORTIC INFECTION. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.251] [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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Miyahara S, Portnyagin YI, Forbes JM, Solovjeva TV. Mean zonal acceleration and heating of the 70- to 100-km region. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/90ja02006] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sacktor N, Miyahara S, Deng L, Evans S, Schifitto G, Cohen BA, Paul R, Robertson K, Jarocki B, Scarsi K, Coombs RW, Zink MC, Nath A, Smith E, Ellis RJ, Singer E, Weihe J, McCarthy S, Hosey L, Clifford DB. Minocycline treatment for HIV-associated cognitive impairment: results from a randomized trial. Neurology 2011; 77:1135-42. [PMID: 21900636 PMCID: PMC3174065 DOI: 10.1212/wnl.0b013e31822f0412] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Accepted: 05/25/2011] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE We conducted a study of minocycline to assess its safety, tolerability, and efficacy for the treatment of HIV-associated cognitive impairment. METHODS HIV-1-infected individuals with progressive neurocognitive decline were enrolled in a double-blind, placebo-controlled study of minocycline. Participants were randomized to receive minocycline 100 mg or matching placebo orally every 12 hours. The primary efficacy measure was change in a neuropsychological test composite z score (NPZ-8) from baseline to week 24. Measures of safety included the frequency of adverse events and changes over time in laboratory tests. After 50% of participants completed the double-blind phase, an interim analysis of futility for the primary outcome measure was performed, and our Data and Safety Monitoring Board recommended early study termination. RESULTS A total of 107 HIV-1-infected individuals with cognitive impairment were enrolled. The minocycline group did not show improvement in the primary outcome measure (NPZ-8) (mean 24-week change = 0.12) compared to placebo (mean 24-week change = 0.17) (95% confidence interval = [-0.26, 0.39], p = 0.70). There were few severe adverse events or laboratory abnormalities in either treatment group. CONCLUSION Minocycline was safe and well-tolerated in individuals with HIV-associated cognitive impairment, but cognitive improvement was not observed. Classification of evidence. This interventional study provides Class II evidence for the safety, tolerability, and efficacy of minocycline for the treatment of HIV-associated cognitive impairment.
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Affiliation(s)
- N Sacktor
- Department of Neurology, Johns Hopkins Bayview Medical Center, 4940 Eastern Ave., 301 Building, Suite 2100, Baltimore, MD 21224, USA.
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Murakawa H, Onose Y, Miyahara S, Furukawa N, Tokura Y. Ferroelectricity induced by spin-dependent metal-ligand hybridization in Ba₂CoGe₂O₇. Phys Rev Lett 2010; 105:137202. [PMID: 21230803 DOI: 10.1103/physrevlett.105.137202] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2010] [Indexed: 05/30/2023]
Abstract
We have investigated the variation of induced ferroelectric polarization under a magnetic field with various directions and magnitudes in a staggered antiferromagnet Ba₂CoGe₂O₇. While the ferroelectric polarization cannot be explained by the well-accepted spin current model nor the exchange striction mechanism, we have shown that it is induced by the spin-dependent p-d hybridization between the transition metal (Co) and ligand (O) via the spin-orbit interaction. On the basis of the correspondence between the direction of electric polarization and the magnetic state, we have also demonstrated the electrical control of the magnetization direction.
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Affiliation(s)
- H Murakawa
- Multiferroics Project, ERATO, Japan Science and Technology Agency (JST), c/o Department of Applied Physics, University of Tokyo, Tokyo, Japan
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Morris DW, Trivedi MH, Husain MM, Fava M, Budhwar N, Wisniewski SR, Miyahara S, Gollan JK, Davis LL, Daly EJ, Rush AJ. Indicators of pretreatment suicidal ideation in adults with major depressive disorder. Acta Psychiatr Scand 2010; 121:480-4. [PMID: 19958307 DOI: 10.1111/j.1600-0447.2009.01516.x] [Citation(s) in RCA: 15] [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: 11/26/2022]
Abstract
OBJECTIVE In order to evaluate the presence of treatment emergent suicidal ideation (SI), it becomes necessary to identify those patients with SI at the onset of treatment. The purpose of this report is to identify sociodemographic and clinical features that are associated with SI in major depressive disorder (MDD) patients prior to treatment with a selective serotonin reuptake inhibitor. METHOD This multisite study enrolled 265 out-patients with non-psychotic MDD. Sociodemographic and clinical features of participants with and without SI were compared post hoc. RESULTS Social phobia, bulimia nervosa, number of past depressive episodes, and race were independently associated with SI by one or more SI measure. CONCLUSION Concurrent social phobia and bulimia nervosa may be potential risk factors for SI in patients with non-psychotic MDD. Additionally, patients with more than one past depressive episode may also be at increased risk of SI.
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Affiliation(s)
- D W Morris
- Department of Psychiatry, The University of Texas Southwestern Medical Center, Dallas, TX 75390-9119, USA.
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18
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Obuchi T, Miyahara S, Higuchi T, Hamatake D, Imakiire T, Ueno T, Yoshinaga Y, Shiraishi T, Shirakusa T, Iwasaki A. Prognosis of patients after pulmonary artery plasty for non-small cell lung cancer. Thorac Cardiovasc Surg 2010; 57:484-8. [PMID: 20013624 DOI: 10.1055/s-0029-1185850] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE We evaluated the clinical outcomes of patients after lung resection with pulmonary artery (PA) plasty for non-small cell lung cancer (NSCLC). METHODS From 1995 to 2006, 36 patients (26 males and 10 females) with NSCLC underwent lobectomy or segmentectomy with PA plasty at our institution. The mean age of the patients was 65.9 years old (range 45-87 years old). There were 17 left upper lobectomies, 10 right upper lobectomies, five left lower lobectomies, two right upper-and-middle bilobectomies, one right lower lobectomy, and one left upper division segmentectomy. Both bronchoplasty and PA plasty were performed in 15 patients. Six patients received preoperative chemotherapy, and one had preoperative radiotherapy. RESULTS The postoperative morbidity rate was 27.8 % (10/36), and the mortality rate (30 days) was 2.8 % (1/36). One patient underwent completion pneumonectomy on postoperative day 13. Macroscopic residual cancer was identified in two patients at the thoracic wall and aorta, respectively; microscopic residual cancers were identified in two patients at the stumps of the pulmonary artery and in one patient at the bronchial stump. Postoperative radiation therapy was additionally given to those four patients, except one. The 5-year survival rate for all patients was 51.8 %. There was no significant difference in the 5-year survival rate between clinical N (cN) 0-1 patients and cN2 patients. However, in pathological N (pN) 0-1 patients, the 5-year survival rate was significantly better than that of pN2 patients (71.9 % versus 0.0 %; P < 0.001). CONCLUSIONS PA plasty for NSCLC is acceptable and highly recommended for pN0-1 patients. Strict patient selection should be considered so as to avoid surgical operations in patients with pN2 staging.
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Affiliation(s)
- T Obuchi
- Thoracic Surgery, Fukuoka University, Fukuoka, Japan.
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19
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Nierenberg AA, Husain MM, Trivedi MH, Fava M, Warden D, Wisniewski SR, Miyahara S, Rush AJ. Residual symptoms after remission of major depressive disorder with citalopram and risk of relapse: a STAR*D report. Psychol Med 2010; 40:41-50. [PMID: 19460188 PMCID: PMC5886713 DOI: 10.1017/s0033291709006011] [Citation(s) in RCA: 295] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Many patients with major depressive disorder (MDD) who experience full symptomatic remission after antidepressant treatment still have residual depressive symptoms. We describe the types and frequency of residual depressive symptoms and their relationship to subsequent depressive relapse after treatment with citalopram in the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) trial. METHOD Participants in primary (n=18) and psychiatric (n=23) practice settings were openly treated with citalopram using measurement-based care for up to 14 weeks and follow-up for up to 1 year. We assessed 943 (32.8% of 2876) participants who met criteria for remission to determine the proportions with individual residual symptoms and any of the nine DSM-IV criterion symptom domains to define a major depressive episode. At each visit, the 16-item Quick Inventory of Depressive Symptomatology, Self-Report (QIDS-SR16) and the self-report Frequency, Intensity, and Burden of Side Effects Rating (FIBSER) scale were used to assessed depressive symptoms and side-effects respectively. RESULTS More than 90% of remitters had at least one residual depressive symptom (median=3). The most common were weight increase (71.3%) and mid-nocturnal insomnia (54.9%). The most common residual symptom domains were sleep disturbance (71.7%) and appetite/weight disturbance (35.9%). Those who remitted before 6 weeks had fewer residual symptoms at study exit than did later remitters. Residual sleep disturbance did not predict relapse during follow-up. Having a greater number of residual symptom domains was associated with a higher probability of relapse. CONCLUSIONS Patients with remission of MDD after treatment with citalopram continue to experience selected residual depressive symptoms, which increase the risk of relapse.
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Affiliation(s)
- A A Nierenberg
- Depression Clinical and Research Program, Massachusetts General Hospital, Boston, MA 02114, USA.
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20
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Takahashi Y, Kida N, Yamasaki Y, Fujioka J, Arima T, Shimano R, Miyahara S, Mochizuki M, Furukawa N, Tokura Y. Evidence for an electric-dipole active continuum band of spin excitations in multiferroic TbMnO3. Phys Rev Lett 2008; 101:187201. [PMID: 18999857 DOI: 10.1103/physrevlett.101.187201] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2008] [Revised: 08/05/2008] [Indexed: 05/27/2023]
Abstract
The wide range optical spectra on a multiferroic prototype TbMnO3 have been investigated to clarify the origin of spin excitations observed in the far-infrared region. We elucidate the full band structure, whose high energy edge (133 cm;{-1}) exactly corresponds to twice of the highest-lying magnon energy. Thus the origin of this absorption band is clearly assigned to two-magnon excitation driven by the electric field of light. There is an overlap between the two-magnon and phonon energy ranges, where the strong coupling between them is manifested by the frequency shift and transfer of oscillator strength of the phonon mode.
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Affiliation(s)
- Y Takahashi
- Multiferroics Project, ERATO, Japan Science and Technology Agency (JST), Japan c/o Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
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21
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Iwama D, Miyahara S, Tamura H, Miyamoto K, Hirose F, Yoshimura N. Lack of inducible nitric oxide synthases attenuates leukocyte-endothelial cell interactions in retinal microcirculation. Br J Ophthalmol 2008; 92:694-8. [PMID: 18441175 PMCID: PMC2569143 DOI: 10.1136/bjo.2007.131151] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Aim: To investigate the effect of inducible nitric oxide synthases (iNOS) on inflammatory reactions during endotoxin-induced uveitis (EIU) in mice by studying leukocyte–endothelial cell interactions. Methods: EIU was produced in immunosuppressed iNOS−/− mice and C57BL/6 (normal) mice by footpad injection of lipopolysaccharide. Leukocytes were labelled with acridine orange. Leukocyte rolling in the retinal microcirculation was evaluated in vivo with acridine orange digital fluorography. The number of migrated leukocytes was counted in flat-mounted retina. Results: Both leukocyte rolling and migration peaked at 48 h after lipopolysaccharide injection. The maximal numbers of rolling leukocytes in the immunosuppressed iNOS−/− mouse retina decreased by 98.2% (p<0.001) compared with that in the normal mouse retina at 48 h after lipopolysaccharide injection. In addition, the maximal numbers of migrated leukocytes in the immunosuppressed iNOS−/− mouse retina decreased by 74.0% (p<0.001) compared with that in the normal mouse retina at 24 h after lipopolysaccharide injection. Furthermore, the diameters of major retinal veins of the immunosuppressed iNOS−/− group were smaller at both 24 and 48 h after lipopolysaccharide injection than were those of the normal group (p<0.001, respectively). Conclusions: A lack of iNOS suppresses leukocyte–endothelial cell interactions in the retinas of mice with EIU. This suggests that iNOS may play a role in the management of patients with uveitis and other inflammatory conditions.
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Affiliation(s)
- D Iwama
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S Miyahara
- Department of Ophthalmology, Otsu Red Cross Hospital, Otsu, Japan
| | - H Tamura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Miyamoto
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - F Hirose
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - N Yoshimura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
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22
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Iwama D, Miyamoto K, Miyahara S, Tamura H, Tsujikawa A, Yamashiro K, Kiryu J, Yoshimura N. Neuroprotective effect of cilostazol against retinal ischemic damage via inhibition of leukocyte-endothelial cell interactions. J Thromb Haemost 2007; 5:818-25. [PMID: 17408412 DOI: 10.1111/j.1538-7836.2007.02425.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [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: 11/28/2022]
Abstract
BACKGROUND Cilostazol, a selective platelet phosphodiesterase inhibitor, has been shown to reduce neuronal injury after transient cerebral ischemia. Its neuroprotective effect is thought to result from an antiplatelet function. This study was designed to evaluate the inhibitory effects of cilostazol against retinal ischemic damage focusing on leukocyte-endothelial cell interactions. METHODS Retinal ischemia was induced for 60 min in male Sprague-Dawley rats (n = 144) by temporary ligation of the optic sheath. Cilostazol was administered just before ischemia induction. Leukocyte behavior in the retinal microcirculation was evaluated in vivo with scanning laser ophthalmoscopy and ex vivo with fluorescence microscopy. Retinal expression of P-selectin, intracellular adhesion molecule-1 (ICAM-1), and vascular endothelial growth factor were evaluated by real-time quantitative reverse transcriptase-polymerase chain reaction. Ischemia-induced retinal damage was evaluated histologically. RESULTS Treatment with cilostazol significantly suppressed leukocyte-endothelial cell interactions; the maximal numbers of rolling leukocytes were reduced by 77.6% (P < 0.01) 12 h after ischemia. Twenty-four hours after ischemia, adherent and accumulated leukocytes were also suppressed by treatment with cilostazol (36.1% and 20.4% respectively, P < 0.01). The expressions of P-selectin and ICAM-1 mRNA were suppressed significantly in cilostazol-treated retinas (P < 0.05). The retinal histological examination demonstrated a significant protective effect of cilostazol against ischemia-induced retinal damage (P < 0.01). CONCLUSIONS The present study demonstrates that cilostazol attenuates retinal injury after transient ischemia via inhibition of leukocyte-endothelial cell interactions. This inhibitory effect on postischemic leukocyte-endothelial cell interactions might partially contribute to its neuroprotective effects.
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Affiliation(s)
- D Iwama
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, Japan
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23
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Clémancey M, Mayaffre H, Berthier C, Horvatić M, Fouet JB, Miyahara S, Mila F, Chiari B, Piovesana O. Field-induced staggered magnetization and magnetic ordering in Cu2(C5H12N2)2Cl4. Phys Rev Lett 2006; 97:167204. [PMID: 17155431 DOI: 10.1103/physrevlett.97.167204] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2006] [Indexed: 05/12/2023]
Abstract
We present a 2D NMR investigation of the gapped spin-1/2 compound Cu2(C5H10N2D2)2Cl4. Our measurements reveal the presence of a magnetic field-induced transverse staggered magnetization (TSM) which persists well below and above the field-induced 3D long-range magnetically ordered (FIMO) phase. The symmetry of this TSM is different from that of the TSM induced by the order parameter of the FIMO phase. Its origin, field dependence, and symmetry can be explained by an intradimer Dzyaloshinskii-Moriya interaction, as shown by DMRG calculations on a spin-1/2 ladder. This leads us to predict that the transition into the FIMO phase is not in the BEC universality class.
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Affiliation(s)
- M Clémancey
- Laboratoire de Spectrométrie Physique, Université J Fourier & UMR5588 CNRS, Boîte Postale 87, 38402, Saint Martin d'Hères, France
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24
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Otto MW, Simon NM, Wisniewski SR, Miklowitz DJ, Kogan JN, Reilly-Harrington NA, Frank E, Nierenberg AA, Marangell LB, Sagduyu K, Weiss RD, Miyahara S, Thas ME, Sachs GS, Pollack MH. Prospective 12-month course of bipolar disorder in out-patients with and without comorbid anxiety disorders. Br J Psychiatry 2006; 189:20-5. [PMID: 16816301 DOI: 10.1192/bjp.bp.104.007773] [Citation(s) in RCA: 160] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND The impact of anxiety disorders has not been well delineated in prospective studies of bipolar disorder. AIMS To examine the association between anxiety and course of bipolar disorder, as defined by mood episodes, quality of life and role functioning. METHOD A thousand thousand out-patients with bipolar disorder were followed prospectively for 1 year. RESULTS A current comorbid anxiety disorder (present in 31.9% of participants) was associated with fewer days well, a lower likelihood of timely recovery from depression, risk of earlier relapse, lower quality of life and diminished role function over I year of prospective study. The negative impact was greater with multiple anxiety disorders. CONCLUSIONS Anxiety disorders, including those present during relative euthymia, predicted a poorer bipolar course. The detrimental effects of anxiety were not simply a feature of mood state. Treatment studies targeting anxiety disorders will help to clarify the nature of the impact of anxiety on bipolar course.
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Affiliation(s)
- M W Otto
- Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
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25
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Murase T, Miyahara S, Sato T, Otsuki K, Holt P. Isolation of Salmonella Organisms from Commercial Layer Houses Where the Flocks Were Molted with a Wheat Bran Diet. J APPL POULTRY RES 2006. [DOI: 10.1093/japr/15.1.116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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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26
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Miyahara S, Miyahara N, Matsubara S, Koya T, Takeda K, Gelfand E. The Role of IL-13 in the Development of Allergic Rhinitis in Mice. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.1075] [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: 10/24/2022]
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27
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Miyahara N, Taube C, Ott V, Swanson B, Takeda K, Miyahara S, Matsubara S, Koya T, Loader J, Shultz L, Tager A, Luster A, Dakhama A, Gelfand E. The Leukotriene B4 Receptor (BLT1) is Required for Effector CD8+ T-Cell-Mediated, Mast Cell-Dependent Airway Hyperresponsiveness. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.965] [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: 10/24/2022]
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28
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Koya T, Takeda K, Matsubara S, Miyahara N, Miyahara S, Swasey C, Barhorn A, Joetham A, Dakhama A, Gelfand E. In Vitro and in Vivo Effects of IL-10-Treated Dendritic Cells on Airway Allergic Inflammation. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.981] [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]
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Tamura H, Kiryu J, Miyamoto K, Nishijima K, Katsuta H, Miyahara S, Hirose F, Honda Y, Yoshimura N. In vivo evaluation of ocular inflammatory responses in experimental diabetes. Br J Ophthalmol 2005; 89:1052-7. [PMID: 16024864 PMCID: PMC1772776 DOI: 10.1136/bjo.2004.061929] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS Diabetic patients may have abnormal inflammatory reactions to foreign or endogenous stimuli. This study was designed to evaluate inflammatory reactions in the diabetic eye through retinal leucocyte dynamics in the inflamed eyes of diabetic rats. METHODS Three weeks after diabetes induction in Long-Evans rats, endotoxin induced uveitis was produced by footpad injection of lipopolysaccharide (LPS). After LPS injection, leucocyte behaviour was evaluated in vivo by acridine orange digital fluorography. RESULTS The number of rolling leucocytes increased in a biphasic manner at 12 hours and 48 hours. The number of leucocytes accumulating in the retina reached a peak at 72 hours. The maximal numbers of rolling and accumulating leucocytes in the diabetic retina decreased by 56.3% (p<0.01) and 46.7% (p<0.0001), respectively, compared with the non-diabetic retina. The levels of mRNA expression of adhesion molecules in the retina, which were upregulated after LPS injection, were also lower in diabetic rats than in non-diabetic rats. CONCLUSION This study is the first to show that endotoxin induced inflammation is disturbed in the diabetic eye, based on evidence that the leucocyte-endothelial cell interactions stimulated by LPS were suppressed in the diabetic retina. These findings support the theory that ocular inflammatory reactions are impaired in diabetic patients.
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Affiliation(s)
- H Tamura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo, Kyoto 606-8507, Japan
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30
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Komori T, Miyahara S, Yamamoto M, Matsumoto T, Zhang K, Nakagawa M, Nomura S, Motomura E, Shiroyama T, Okazaki Y. Effects of Odorants on the Hypothalamic-Pituitary-Adrenal Axis and Interleukin-6 (IL-6) and IL-6 Receptor mRNA Expression in Rat Hypothalamus after Restraint Stress. Chem Senses 2003; 28:767-71. [PMID: 14654444 DOI: 10.1093/chemse/bjg069] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [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: 11/14/2022] Open
Abstract
We recently reported that stress alters interleukin (IL)-6 and IL-6 receptor (IL-6R) mRNA levels in the hypothalamus. Odorants are reported to exert anti-stress effects. The aim of our study was to determine the effects of odorants on IL-6 and IL-6R mRNA expression in the hypothalamus, using reverse transcriptase-polymerase chain reaction and on serum levels of adrenocorticotropic hormone (ACTH) and corticosterone in rats exposed to stress. Control rats were not exposed to stress; test control rats were exposed to 4 h stress then immediately killed. In other groups, rats were exposed to the same stress followed by 30 min exposure air, dimethoxymethylbenzene (DMMB), or citralva. In the air group, IL-6 and IL-6R mRNA levels were significantly reduced and serum levels of ACTH and corticosterone significantly increased relative to the control. Exposure to DMMB significantly augmented IL-6 mRNA expression but restored that of IL-6R mRNA, did not change serum corticosterone level relative to that of the air group and significantly reduced ACTH. In comparison, citralva restored the expression of IL-6 and IL-6R mRNAs and significantly increased serum ACTH and corticosterone levels. Our results indicate that citralva enhances stress-induced activation of the hypothalamic-pituitary-adrenal axis by corticotropin-releasing hormone (CRH)-mediated stimulation of IL-6, while DMMB enhances the beneficial action of IL-6 without affecting CRH.
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Affiliation(s)
- Teruhisa Komori
- Department of Psychiatry, Mie University School of Medicine, Tsu, Mie 514-8507, Japan.
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31
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Yamamoto M, Komori T, Matsumoto T, Zhang K, Miyahara S, Shizuya K, Okazaki Y. Effects of single and repeated prolonged stress on mu-opioid receptor mRNA expression in rat gross hypothalamic and midbrain homogenates. Brain Res 2003; 980:191-6. [PMID: 12867258 DOI: 10.1016/s0006-8993(03)02969-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [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: 12/17/2022]
Abstract
This study tested the hypothesis that stress-induced opioid peptides may have stimulative and inhibitive influence on mu opioid receptor (MOR) mRNA expression and hypothalamus. Several studies have investigated the effects of stress on MOR mRNA expression in rat brain, but almost none compared the response to single versus repeated stresses. Here, we examined the effects of single and repeated stress on MOR mRNA expression in different rat brain regions using reverse transcriptase-polymerase chain reaction (RT-PCR). Following a single episode of restraint stress for 4 h (1R) or 4 h per day on 2 (2R) or 3 (3R) consecutive days, the hypothalamus and midbrain were removed immediately and MOR mRNA levels in both regions were determined by RT-PCR. Blood samples were also collected for simultaneous measurement of serum adrenocorticotropic hormone (ACTH) and corticosterone (CS). MOR mRNA expression was significantly higher in both regions in the 2R group, whereas expression levels in the 3R group did not differ from controls. In the 1R group, hypothalamic MOR expression was equivalent to that in controls, but expression was significantly higher in the midbrain. Serum ACTH levels were significantly higher only in the 1R group, whereas serum CS was significantly higher in both the 1R and 3R groups. Our findings indicate that the influence of restraint stress on MOR mRNA expression in the hypothalamus is different than in the midbrain region in rats. Endogenous opioid peptides released in response to stress may paradoxically have an effect on the HPA axis.
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MESH Headings
- Animals
- Gene Expression Regulation/physiology
- Hypothalamus/metabolism
- Male
- Mesencephalon/metabolism
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- Rats
- Rats, Wistar
- Receptors, Opioid, mu/biosynthesis
- Receptors, Opioid, mu/genetics
- Restraint, Physical
- Stress, Physiological/blood
- Stress, Physiological/metabolism
- Time Factors
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Affiliation(s)
- Masato Yamamoto
- Department of Psychiatry, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan.
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Hara H, Ihara S, Ando H, Miyahara S, Ichiki K, Doki Y, Tsuda M, Usuda K, Misaki T. [Irrigation for the post-pneumonectomy empyema infected by methicillin-resistant Staphylococcus aureus without broncho-pleural fistula; report of a successful case]. Kyobu Geka 2003; 56:597-601. [PMID: 12854472] [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: 03/03/2023]
Abstract
It has been known that treatments of post-pneumonectomy empyema are difficult. We report a successful case of irrigation for the post-pneumonectomy. The patient was 68-year-old man with advanced lung cancer. He underwent induction chemoradiotherapy following by pneumonectomy of the right side. A few days later after the chest drain was withdrawn, spike fever appeared. Empyema was suspected, so a 28 Fr diameter double lumen chest drain was intubated again. Turbid effusion was discharged through the drain, in which methicillin-resistant staphylococcus aureus (MRSA) was cultured. Irrigation using a lot of saline and acid electrolyzed water started. A month later, irrigator through the drain was looking clear, however, MRSA was cultured so far. After putting minomycine into the irrigator, MRSA died away. This physical and chemical irrigations were effective.
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Affiliation(s)
- H Hara
- First Department of Surgery, School of Medicine, Toyama Medical and Pharmaceutical University, Toyama, Japan
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Zhang K, Komori T, Miyahara S, Yamamoto M, Matsumoto T, Okazaki Y. Effects of single and repeated restraint stresses on the expression of beta(1)-adrenoceptor mRNA in the rat hypothalamus and midbrain. Neuropsychobiology 2003; 46:121-4. [PMID: 12422058 DOI: 10.1159/000066389] [Citation(s) in RCA: 2] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We examined the effects of single and repeated restraint stresses on the expression of beta(1)-adrenoceptor mRNA in the rat midbrain and hypothalamus using reverse transcriptase-polymerase chain reaction (RT-PCR). After the rats had been restrained for 4 h (single stress), or for 4 h per day during 2 or 3 consecutive days, the hypothalamus and midbrain were removed immediately and beta(1)-adrenoceptor mRNA levels in these regions were determined by RT-PCR. Single stress significantly decreased the mRNA level in the hypothalamus, but the mRNA level was near control levels after 2 and 3 days of stress. In the midbrain, single stress had no effect on the mRNA level, but 2 days of stress significantly increased it.
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Affiliation(s)
- Kai Zhang
- Department of Psychiatry, Mie University School of Medicine, Tsu, Japan.
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Kudo A, Kubota T, Zheng J, Sasaki T, Kauri T, Miyahara S. Measurement of Nagasaki Pu Global Transport Rates, Comparing with SO 2 from Historic Volcanic Eruptions. J NUCL SCI TECHNOL 2002. [DOI: 10.1080/00223131.2002.10875525] [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: 10/23/2022]
Affiliation(s)
- A. Kudo
- Research Reactor Institute, Kyoto University, Kumatori, Osaka-fu 590-0494, Japan
| | - T. Kubota
- Research Reactor Institute, Kyoto University, Kumatori, Osaka-fu 590-0494, Japan
| | - J. Zheng
- Ggeological Survey of Canada, Natural Resources of Canada, Ottawa, Canada
| | - T. Sasaki
- Research Reactor Institute, Kyoto University, Kumatori, Osaka-fu 590-0494, Japan
| | - T. Kauri
- ICPET, National Research Council of Canada, Ottawa, Canada
| | - S. Miyahara
- Faculty of Fisheries, Nagasaki University, Nagasaki, Japan
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35
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Kodama K, Takigawa M, Horvatić M, Berthier C, Kageyama H, Ueda Y, Miyahara S, Becca F, Mila F. Magnetic superstructure in the two-dimensional quantum antiferromagnet SrCu2(BO3)2. Science 2002; 298:395-9. [PMID: 12376697 DOI: 10.1126/science.1075045] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We report the observation of magnetic superstructure in a magnetization plateau state of SrCu2(BO3)2, a frustrated quasi-two-dimensional quantum spin system. The Cu and B nuclear magnetic resonance (NMR) spectra at 35 millikelvin indicate an apparently discontinuous phase transition from uniform magnetization to a modulated superstructure near 27 tesla, above which a magnetization plateau at 1/8 of the full saturation has been observed. Comparison of the Cu NMR spectrum and the theoretical analysis of a Heisenberg spin model demonstrates the crystallization of itinerant triplets in the plateau phase within a large rhomboid unit cell (16 spins per layer) showing oscillations of the spin polarization. Thus, we are now in possession of an interesting model system to study a localization transition of strongly interacting quantum particles.
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Affiliation(s)
- K Kodama
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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36
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Sakota J, Kaneko K, Miyahara S, Mogami A, Shimamura Y, Iwase H, Kurosawa H. Recurrent palmar dislocation of the distal radioulnar joint. A case report. Chir Main 2002; 21:301-4. [PMID: 12491708 DOI: 10.1016/s1297-3203(02)00132-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Recurrent palmar dislocation of the distal radioulnar joint is not a common injury. We report one case in a 73-year-old female. This injury was incorrectly diagnosed at the first presentation because there has been no distinct deformity at the wrist and extension-flexion was normal. The need for proper physical examination and accurate radiographic positioning is stressed. Distal diaphysis resection combined with distal radioulnar arthrodesis (modified Sauve-Kapandji procedure) was the preferred method of treatment in an old patient. Two years after the injury, the patient was asymptomatic.
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Affiliation(s)
- J Sakota
- Department of Orthopedic Surgery, Juntendo University School of Medicine, Tokyo, Japan
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37
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Miyahara S, Nakajima K, Yamashita A, Kotoh K, Misaki T. [The treatment for the acute occlusion of a coronary artery by PTCA failure with the acute occlusion of a femoral artery by the IABP insertion]. Kyobu Geka 2002; 55:227-9. [PMID: 11889812] [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: 02/24/2023]
Abstract
A 68-year-old woman had the acute occlusion of a coronary artery by PTCA failure acute occlusion of a femoral artery by the IABP insertion. The patient underwent on pump beating coronary bypass and axillo-femoral bypass simultaneously.
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Affiliation(s)
- S Miyahara
- Department of Surgery 1, Toyama Medical and Pharmaceutical University, Toyama, Japan
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38
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Tsuji M, Miyahara S, Taoka F, Teshima M. An estimation of economic effects of tele-home-care: hospital cost-savings of the elderly. Stud Health Technol Inform 2002; 84:858-62. [PMID: 11604857] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Tele-home-care (or tele-medicine) is being implemented by the application of multimedia such as CATV and ISDN. In this paper, by focusing on the so-called "social hospitalization of the aged," we carry out an estimation of the extent to which tele-home-care based on multimedia can help in saving the cost of hospitalization of the aged in the future. Estimation consists of the following two parts. First, we estimate the trends of the aged population and their hospital expenses using the regression analysis. Second, we assume that new technology such as multimedia and new medical instruments develop according to a logistic curve. Thus, we estimate the rate of diffusion of CATV and ISDN by logistic curves. Then, by multiplying this number by hospital costs per elderly patient as estimated previously, we have been able to calculate the extent to which hospitalization costs can be saved in the entire economy. Our results indicated that in the year 2050, US$257.3 billion, or nearly 7.4% of total hospitalization costs of the aged could be saved by tele-home-care.
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Affiliation(s)
- M Tsuji
- Osaka School of International Public Policy (OSIPP), Osaka University, Toyonaka, Osaka, 560-0043, Japan.
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39
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Shirasaka T, Miyahara S, Kunitake T, Jin QH, Kato K, Takasaki M, Kannan H. Orexin depolarizes rat hypothalamic paraventricular nucleus neurons. Am J Physiol Regul Integr Comp Physiol 2001; 281:R1114-8. [PMID: 11557617 DOI: 10.1152/ajpregu.2001.281.4.r1114] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.7] [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: 11/22/2022]
Abstract
Orexins, also called hypocretins, are newly discovered hypothalamic peptides that are thought to be involved in various physiological functions. In spite of the fact that orexin receptors, especially orexin receptor 2, are abundant in the hypothalamic paraventricular nucleus (PVN), the effects of orexins on PVN neurons remain unknown. Using a whole cell patch-clamp recording technique, we investigated the effects of orexin-B on PVN neurons of rat brain slices. Bath application of orexin-B (0.01-1.0 microM) depolarized 80.8% of type 1 (n = 26) and 79.2% of type 2 neurons tested (n = 24) in the PVN in a concentration-dependent manner. The effects of orexin-B persisted in the presence of TTX (1 microM), indicating that these depolarizing effects were generated postsynaptically. Addition of Cd(2+) (1 mM) to artificial cerebrospinal fluid containing TTX (1 microM) significantly reduced the depolarizing effect in type 2 neurons. These results suggest that orexin-B has excitatory effects on the PVN neurons mediated via a depolarization of the membrane potential.
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Affiliation(s)
- T Shirasaka
- Department of Anesthesiology, Miyazaki Medical College, 5200 Kihara, Kiyotake, Miyazaki, 889 - 1692, Japan
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40
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Abstract
Macrophage-derived inflammatory mediators, such as tumor necrosis factor-alpha (TNF-alpha), have been shown to play a central role in aggravation of acute pancreatitis (AP), but little is known about their roles in liver injury. We investigated the pathogenesis of the liver injury in AP and assessed the efficacy of arterial infusion of an antibiotic via the superior mesenteric artery (SMA). Infusion of saline (group A) or imipenem (group B) was started 6 hours after induction of AP in dogs by intraductal administration of autologous gallbladder bile. The survival rate in group B was significantly improved compared with group A. Serum alanine aminotransferase levels in peripheral blood and endotoxin levels in portal vein blood were both significantly higher at 18 hours in group A than in group B. When hepatocytes and Kupffer cells were isolated at 18 hours and cultured for 24 hours thereafter, there was significant exacerbation of the hepatocyte injury and significantly greater production of TNF-alpha in the coculture of hepatocytes and Kupffer cells in group A, indicating that the Kupffer cells had been activated. By contrast, both of these manifestations were significantly mitigated in group B. These findings suggest that TNF-alpha secreted by endotoxin-activated Kupffer cells contributes to liver injury in AP, and that SMA infusion of an antibiotic mitigates the liver injury by controlling endotoxin translocation.
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Affiliation(s)
- S Miyahara
- First Department of Surgery, Mie University School of Medicine, Tsu, Japan
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41
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Abstract
Veratridine is a neurotoxin that induces persistent activation of sodium channels in excitable cells. We investigated the effects of this toxin on excitatory synaptic transmission in CA3 neurons of juvenile rat hippocampus using whole-cell patch-clamp and field-potential recordings. The population spikes evoked by electrical stimulation of the mossy fiber were gradually enhanced after washout of veratridine (0.3 microM), but they were not enhanced by the co-application of veratridine and an N-methyl-D-aspartate (NMDA) receptor antagonist (D-APV, 30 microM). When a pipette solution contained QX-314 that antagonized the effect of veratridine in the recorded neuron, oscillatory membrane depolarization appeared in the early stage during bath-application of veratridine and gradually decreased in the late stage. After washout of veratridine, however, the oscillatory depolarization was gradually restored and maintained for at least 3 h. This oscillatory depolarization was also abolished by D-APV. We suggest that the activation of NMDA receptors is involved in the veratridine-induced long-lasting enhancement in the excitatory synaptic transmission in rat CA3 hippocampal neurons.
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Affiliation(s)
- M Kohama
- Department of Neurosurgery, Miyazaki Medical College, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan.
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42
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Shirasaka T, Miyahara S, Takasaki M, Kannan H. Nociceptin/orphanin FQ and [Phe(1)psi(CH2-NH)Gly2]nociceptin(1-13)NH2 modulates the activity of hypothalamic paraventricular nucleus neurons in vitro. Brain Res 2001; 890:147-53. [PMID: 11164777 DOI: 10.1016/s0006-8993(00)03160-7] [Citation(s) in RCA: 13] [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: 11/20/2022]
Abstract
Nociceptin, also known as orphanin FQ (N/OFQ), an endogenous ligand for the orphan opioid receptor-like(1) (ORL(1)) receptor, is moderately expressed in the hypothalamic paraventricular nucleus (PVN) involved in the integrative control of the function of the endocrine and autonomic nervous systems. Our previous study demonstrated that intracerebroventricular administration of N/OFQ elicits an inhibitory action on the function of the cardiovascular and sympathetic nervous systems in conscious rats. However, the effects of N/OFQ on PVN neurons have not been examined. We investigated the effects of N/OFQ on PVN neurons using a whole-cell patch-clamp recording technique in rat brain slices. N/OFQ (30-1000 nM) hyperpolarized membrane potentials in type 1 and type 2 neurons of the PVN classified by the electrophysiological property. [Phe(1)psi(CH2-NH)Gly2]nociceptin(1-13)NH2 (Phepsi) (1-9 microM), a presumed competitive antagonist of the ORL(1) receptor, also hyperpolarized membrane potential in both types of neurons. In voltage clamp studies, N/OFQ (3-3000 nM) activated a K+ current concentration-dependently in 69.7% of PVN neurons with an EC(50) of 72.4+/-12 nM. Phepsi (100-9000 nM) also activated a K+ current with an EC(50) of 818+/-162 nM in PVN neurons, and significantly reduced the amplitude of the N/OFQ-stimulated current. The N/OFQ-induced current was not antagonized by the classical opioid receptor antagonist naloxone and putative antagonist nocistatin. These findings suggest that N/OFQ may have a functional role in the PVN.
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Affiliation(s)
- T Shirasaka
- Department of Anesthesiology, Miyazaki Medical College, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
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Abstract
By using perturbation calculation and numerical diagonalization, the low-energy spin dynamics of the Shastry-Sutherland model is investigated with particular attention to the two-particle coherent motion. In addition to spin-singlet- and triplet-bound states, we find novel branches of coherent motion of a bound quintet pair, which are usually unstable because of repulsion. Unusual dispersion observed in neutron-scattering measurements is explained by the present theory. The importance of the effects of phonons is also pointed out.
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Affiliation(s)
- K Totsuka
- Department of Physics, Kyushu University, Fukuoka, Japan
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Abstract
Botulism is a paralytic disease caused by a toxin produced by the bacterium Clostridium botulinum. Outbreaks of the illness take place with a mortality rate of 10%, and the potential terrorist use of the toxin has become a serious concern. The current treatment includes administration of antitoxin, which can cause serious allergic reactions. Recently, we have successfully treated a 64 year old woman with the illness with IMMUSORBA TR350 (Asahi Medical, Tokyo, Japan), an extracorporeal adsorptive column containing polyvinylalcohol-tryptophan as an adsorptive agent, which has been widely used in Japan to treat myasthenia gravis and Guillain-Barre syndrome. Initially, the patient developed ocular muscle weakness and a variant of the Guillain-Barre syndrome was suspected. After extracorporeal treatment, her neurologic symptoms remarkably improved. After a series of treatments, botulinum toxin type B was isolated in the food she had eaten, establishing the diagnosis. An in vitro study revealed that the adsorptive column removed botulinum toxin to a significant extent. Our recent findings suggest that treatment with the adsorptive column TR350 can be a feasible option for botulism, which is a rare but potentially lethal disease.
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Affiliation(s)
- Y Sato
- Kidney Center, Tokyo Women's Medical University, Japan
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45
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Miyahara S, Komori T, Fujiwara R, Shizuya K, Yamamoto M, Ohmori M, Okazaki Y. Effects of repeated stress on expression of interleukin-6 (IL-6) and IL-6 receptor mRNAs in rat hypothalamus and midbrain. Life Sci 2000; 66:PL93-8. [PMID: 10794073 DOI: 10.1016/s0024-3205(99)00626-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [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: 11/29/2022]
Abstract
We examined the effects of single and repeated stress on the expression of interleukin-6 (IL-6) and IL-6 receptor (IL-6R) mRNAs in the rat midbrain and hypothalamus using reverse transcriptase-polymerase chain reaction (RT-PCR). Following a single episode of restraint stress for 4 hours (1R) or 4 hours per day on two (2R) or three (3R) consecutive days, the hypothalamus and midbrain were removed immediately and the levels of IL-6 and IL-6R mRNAs in both regions were determined. Regional differences in stress-related changes in mRNA levels were noted. The expression of IL-6 mRNA in the hypothalamus did not change in 1R group but decreased in 2R and 3R groups. The expression of IL-6R mRNA in the same region significantly diminished in all groups. In the midbrain, the expression of IL-6 mRNA increased in 1R group and decreased in 2R and 3R, while the expression of IL-6R mRNA significantly diminished in 1R and 3R groups but was not different from control in 2R group. Our findings indicate that repeated stress in rats produce changes in IL-6 and IL-6R mRNAs in the midbrain and hypothalamus that are different than those of a single stress episode.
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Affiliation(s)
- S Miyahara
- Department of Psychiatry, Mie University School of Medicine, Tsu, Japan
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46
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Imai J, Ieiri I, Mamiya K, Miyahara S, Furuumi H, Nanba E, Yamane M, Fukumaki Y, Ninomiya H, Tashiro N, Otsubo K, Higuchi S. Polymorphism of the cytochrome P450 (CYP) 2C9 gene in Japanese epileptic patients: genetic analysis of the CYP2C9 locus. Pharmacogenetics 2000; 10:85-9. [PMID: 10739176 DOI: 10.1097/00008571-200002000-00011] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- J Imai
- Division of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
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47
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Miyahara S. [Gamma-Sm]. Nihon Rinsho 1999; 57 Suppl:523-5. [PMID: 10778180] [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: 02/16/2023]
Affiliation(s)
- S Miyahara
- Department of Urology, Kurume University, School of Medicine
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48
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Miyahara S, Komori T, Fujiwara R, Shizuya K, Yamamoto M, Ohmori M, Okazaki Y. Effects of restraint stress on alpha(1) adrenoceptor mRNA expression in the hypothalamus and midbrain of the rat. Brain Res 1999; 843:130-5. [PMID: 10528119 DOI: 10.1016/s0006-8993(99)01926-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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: 12/31/2022]
Abstract
We examined the effects of restraint stress on alpha(1) adrenoceptor mRNA expression in the rat brain using reverse transcriptase-polymerase chain reaction (RT-PCR). After rats had been restrained for 10, 30, 60, 120 or 240 min, the hypothalamus and midbrain were removed immediately and alpha(1) adrenoceptor mRNA levels in these regions were determined by RT-PCR. Blood samples were also collected for simultaneous measurement of serum adrenocorticotropic hormone (ACTH) and corticosterone. Restraint stress resulted in a variety of changes in the hypothalamus and midbrain. In the hypothalamus, 30 and 60 min of stress resulted in a significant fall in the level of alpha(1) adrenoceptor mRNA relative to the control. This was associated with a rise in serum ACTH and corticosterone. In the midbrain, significant elevation of alpha(1) adrenoceptor mRNA was noted after 60, 120 and 240 min of restraint stress. Our findings indicated that the influence of restraint stress on alpha(1) adrenoceptor mRNA level in the hypothalamus is different to that of the midbrain region in rats.
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Affiliation(s)
- S Miyahara
- Department of Psychiatry, Mie University School of Medicine, Tsu, Japan
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49
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Miyahara S, Komori T, Fujiwara R, Shizuya K, Yamamoto M, Ohmori M, Okazaki Y. Effects of single and repeated stresses on the expression of mRNA for alpha1-adrenoceptors in the rat hypothalamus and midbrain. Eur J Pharmacol 1999; 379:111-4. [PMID: 10499379 DOI: 10.1016/s0014-2999(99)00498-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [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: 11/17/2022]
Abstract
We examined the effects of single or repeated stress on the expression of mRNA for alpha1-adrenoceptors in the rat hypothalamus and midbrain using the reverse transcriptase-polymerase chain reaction (RT-PCR). Single stress significantly increased the mRNA level for alpha1-adrenoceptors in the midbrain, but had no effect on mRNA levels in the hypothalamus. Repeated stress significantly decreased mRNA levels for alpha1-adrenoceptors in both regions.
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Affiliation(s)
- S Miyahara
- Department of Psychiatry, Mie University School of Medicine, Tsu, Japan
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50
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Maruyama A, Murabayashi K, Hayashi M, Nakano H, Isaji S, Uehara S, Kusuda T, Miyahara S, Kondo A, Yabana T. Hepatocellular carcinoma complicated by gastrointestinal hemorrhage caused by direct tumor invasion of stomach. J Hepatobiliary Pancreat Surg 1999; 6:90-3. [PMID: 10436243 DOI: 10.1007/s005340050089] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A 65-year-old man with multiple hepatocellular carcinoma (HCC) underwent intra-hepato-arterial chemotherapy (IHAC) through an implantable port over a period of 10 months after transcatheter arterial embolization (TAE) had been performed three times. TAE was performed twice more, and radiotherapy (total dose, 30 Gy; given over a 3-week period) was given for progressive disease in the lateral segment of the liver. Three months after the radiotherapy had finished, the patient suddenly developed melena. Diagnostic imaging revealed gastrointestinal (GI) hemorrhage from HCC invading the stomach, and total gastrectomy and lateral segmentectomy of the liver were performed because the bleeding could not be controlled. The resected specimen disclosed a centrally necrotic tumor that had invaded the lesser gastric curvature and perforated into the lumen. Pathology examination revealed that the HCC had expansively invaded the gastric mucosa, resulting in exposure in the lumen. The possible mechanisms of direct GI invasion by HCC are briefly discussed, with a review of the literature. GI bleeding secondary to involvement by HCC is rare. The enteric radiation injury seems to have been largely responsible for the GI bleeding in this patient.
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Affiliation(s)
- A Maruyama
- Department of Surgery, Yamada Red Cross Hospital, Watarai, Mie, Japan
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