1
|
Hanson J, Radlof S, Littlejohn M, Hempenstall A, Edwards R, Nakata Y, Gregson S, Hayes R, Smith S, McKinnon M, Binks P, Tong SYC, Davies J, Davis JS. Hepatitis B genotypes in Aboriginal and Torres Strait Islander Australians: correlation with clinical course and implications for management. Intern Med J 2024; 54:647-656. [PMID: 37548345 DOI: 10.1111/imj.16181] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 07/09/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND The prevalence of chronic hepatitis B (CHB) in Aboriginal and Torres Strait Islander Australians in Far North Queensland (FNQ) is greater than twice that of the general Australian population. CHB is common in Torres Strait Islanders diagnosed with hepatocellular carcinoma (HCC) - and in Aboriginals with HCC living in the Northern Territory - however, Aboriginals diagnosed with HCC in FNQ very rarely have CHB. The explanation for this apparent disparity is uncertain. AIMS To determine the HBV genotypes in the FNQ Aboriginal and Torres Strait Islander population and their correlation with clinical phenotype. METHODS We determined the HBV genotype of Aboriginal and Torres Strait Islander Australians living with CHB in FNQ and correlated this with demographic and clinical findings. RESULTS 134/197 (68%) enrolled individuals had a sufficient viral load for genotyping. All 40 people with HBV/D genotype had Aboriginal heritage, whereas 85/93 (91%) with HBV/C had Torres Strait Islander heritage (P < 0.0001). Individuals with HBV/D were younger than those with HBV/C (median (interquartile range) age: 43 (39-48) vs 53 (42-66) years, P = 0.0002). However, they were less likely to be HBeAg positive (1/40 (3%) vs 23/93 (25%), P = 0.001). All three HCCs developed in Torres Strait Islanders; two-thirds were infected with HBV/C14; genotyping was not possible in the other individual. All 10 diagnoses of cirrhosis occurred in Torres Strait Islanders, 6/10 were infected with HBV/C14, genotyping was not possible in the other four individuals. CONCLUSIONS HBV genotypes in Aboriginal and Torres Strait Islander Australians in FNQ differ markedly, which could explain the significant differences in the clinical phenotype in the two populations and might be used to inform cost-effective CHB care in the region.
Collapse
Affiliation(s)
- Josh Hanson
- Cairns and Hinterland Hospital and Health Service, Cairns, Queensland, Australia
- The Kirby Institute, UNSW, Sydney, New South Wales, Australia
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Sharna Radlof
- Cairns and Hinterland Hospital and Health Service, Cairns, Queensland, Australia
| | - Margaret Littlejohn
- Victorian Infectious Diseases Reference Laboratory, Melbourne, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | | | - Ros Edwards
- Victorian Infectious Diseases Reference Laboratory, Melbourne, Victoria, Australia
| | - Yoko Nakata
- Torres and Cape Health and Hospital Service, Cairns, Queensland, Australia
| | - Sandra Gregson
- Torres and Cape Health and Hospital Service, Cairns, Queensland, Australia
| | - Richard Hayes
- Torres and Cape Health and Hospital Service, Cairns, Queensland, Australia
| | - Simon Smith
- Cairns and Hinterland Hospital and Health Service, Cairns, Queensland, Australia
| | - Melita McKinnon
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Paula Binks
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Steven Y C Tong
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
- Department of Infectious Diseases, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Victorian Infectious Diseases Service, The Royal Melbourne Hospital, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Jane Davies
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Joshua S Davis
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| |
Collapse
|
2
|
Dote S, Shiwaku E, Kohno E, Fujii R, Mashimo K, Morimoto N, Yoshino M, Odaira N, Ikesue H, Hirabatake M, Takahashi K, Takahashi M, Takagi M, Nishiuma S, Ito K, Shimato A, Itakura S, Takahashi Y, Negoro Y, Shigemori M, Watanabe H, Hayasaka D, Nakao M, Tasaka M, Goto E, Kataoka N, Yokomizo A, Kobayashi A, Nakata Y, Miyake M, Hayashi Y, Yamamoto Y, Hirata T, Azuma K, Makihara K, Fukui R, Tokutome A, Yagisawa K, Honda S, Meguro Y, Suzuki S, Yamaguchi D, Miyata H, Kobayashi Y. Impact of prior bevacizumab therapy on the incidence of ramucirumab-induced proteinuria in colorectal cancer: a multi-institutional cohort study. Int J Clin Oncol 2023:10.1007/s10147-023-02357-3. [PMID: 37261583 PMCID: PMC10233195 DOI: 10.1007/s10147-023-02357-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/18/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND The association between prior bevacizumab (BEV) therapy and ramucirumab (RAM)-induced proteinuria is not known. We aimed to investigate this association in patients with metastatic colorectal cancer (mCRC). METHODS mCRC patients who received folinic acid, fluorouracil, and irinotecan (FOLFIRI) plus RAM were divided into with and without prior BEV treatment groups. The cumulative incidence of grade 2-3 proteinuria and rate of RAM discontinuation within 6 months (6M) after RAM initiation were compared between the two groups. RESULTS We evaluated 245 patients. In the Fine-Gray subdistribution hazard model including prior BEV, age, sex, comorbidities, eGFR, proteinuria ≥ 2 + at baseline, and later line of RAM, prior BEV treatment contributed to proteinuria onset (P < 0.01). A shorter interval between final BEV and initial RAM increased the proteinuria risk; the adjusted odds ratios (95% confidence intervals) for the intervals of < 28 days, 28-55 days, and > 55 days (referring to prior BEV absence) were 2.60 (1.23-5.51), 1.51 (1.01-2.27), and 1.04 (0.76-1.44), respectively. The rate of RAM discontinuation for ≤ 6M due to anti-VEGF toxicities was significantly higher in the prior BEV treatment group compared with that in the no prior BEV treatment group (18% vs. 6%, P = 0.02). Second-line RAM discontinuation for ≤ 6M without progression resulted in shorter overall survival of 132 patients with prior BEV treatment (P < 0.01). CONCLUSION Sequential FOLFIRI plus RAM after BEV failure, especially within 55 days, may exacerbate proteinuria. Its escalated anti-VEGF toxicity may negatively impact the overall survival.
Collapse
Affiliation(s)
- Satoshi Dote
- Department of Pharmacy, Kyoto-Katsura Hospital, Kyoto, Japan.
| | - Eiji Shiwaku
- Department of Pharmacy, Kyoto-Katsura Hospital, Kyoto, Japan
| | - Emiko Kohno
- Department of Pharmacy, Kansai Medical University Hospital, Osaka, Japan
| | - Ryohei Fujii
- Department of Pharmacy, Kansai Medical University Hospital, Osaka, Japan
| | - Keiji Mashimo
- Department of Pharmacy, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - Naomi Morimoto
- Department of Pharmacy, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - Masaki Yoshino
- Department of Pharmacy, Niigata Cancer Center Hospital, Niigata, Japan
| | - Naoki Odaira
- Department of Pharmacy, Niigata Cancer Center Hospital, Niigata, Japan
| | - Hiroaki Ikesue
- Department of Pharmacy, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Masaki Hirabatake
- Department of Pharmacy, Kobe City Medical Center General Hospital, Kobe, Japan
| | | | - Masaya Takahashi
- Department of Pharmacy, Osaka City University Hospital, Osaka, Japan
| | - Mari Takagi
- Department of Pharmacy, Osaka International Cancer Institute, Osaka, Japan
| | - Satoshi Nishiuma
- Department of Pharmacy, Osaka International Cancer Institute, Osaka, Japan
| | - Kaori Ito
- Department of Clinical Pharmacy, School of Medicine, Fujita Health University, Aichi, Japan
| | - Akane Shimato
- Department of Clinical Pharmacy, School of Medicine, Fujita Health University, Aichi, Japan
| | - Shoji Itakura
- Department of Pharmacy, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Yoshitaka Takahashi
- Department of Pharmacy, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Japan
| | - Yutaka Negoro
- Department of Pharmacy, University of Fukui Hospital, Fukui, Japan
| | - Mina Shigemori
- Department of Pharmacy, University of Fukui Hospital, Fukui, Japan
| | | | - Dai Hayasaka
- Department of Pharmacy, Matsushita Memorial Hospital, Osaka, Japan
| | - Masahiko Nakao
- Department of Pharmacy, Osaka City General Hospital, Osaka, Japan
| | - Misaki Tasaka
- Department of Pharmacy, Osaka City General Hospital, Osaka, Japan
| | - Emi Goto
- Department of Pharmacy, Osaka Medical and Pharmaceutical University Hospital, Osaka, Japan
| | - Noriaki Kataoka
- Department of Pharmacy, Osaka Medical and Pharmaceutical University Hospital, Osaka, Japan
| | - Ayako Yokomizo
- Department of Pharmacy, St. Marianna University Hospital, Kanagawa, Japan
| | - Ayako Kobayashi
- Department of Pharmacy, St. Marianna University Hospital, Kanagawa, Japan
| | - Yoko Nakata
- Department of Pharmacy, Medical Research Institute KITANO HOSPITAL, Osaka, Japan
| | - Mafumi Miyake
- Department of Pharmacy, Medical Research Institute KITANO HOSPITAL, Osaka, Japan
| | - Yaeko Hayashi
- Department of Pharmacy, Omihachiman Community Medical Center, Shiga, Japan
| | - Yoshie Yamamoto
- Department of Pharmacy, Omihachiman Community Medical Center, Shiga, Japan
| | - Taiki Hirata
- Department of Pharmacy, Tokyo Medical University Hospital, Tokyo, Japan
| | - Kanako Azuma
- Department of Pharmacy, Tokyo Medical University Hospital, Tokyo, Japan
| | - Katsuya Makihara
- Department of Pharmacy, Yodogawa Christian Hospital, Osaka, Japan
| | - Rino Fukui
- Department of Pharmacy, Yodogawa Christian Hospital, Osaka, Japan
| | - Akira Tokutome
- Department of Pharmacy, Sapporo-Higashi Tokushukai General Hospital/Institute of Biomedical Research, Hokkaido, Japan
| | - Keiji Yagisawa
- Department of Pharmacy, Sapporo-Higashi Tokushukai General Hospital/Institute of Biomedical Research, Hokkaido, Japan
| | - Shinji Honda
- Department of Pharmacy, Kyoto City Hospital, Kyoto, Japan
| | - Yuji Meguro
- Department of Pharmacy, Kyoto City Hospital, Kyoto, Japan
| | - Shota Suzuki
- Institute for Clinical and Translational Science, Nara Medical University Hospital, Nara, Japan
| | - Daisuke Yamaguchi
- Department of Medical Oncology, Kyoto-Katsura Hospital, Kyoto, Japan
| | - Hitomi Miyata
- Department of Nephrology, Kyoto-Katsura Hospital, Kyoto, Japan
| | - Yuka Kobayashi
- Department of Pharmacy, Kyoto-Katsura Hospital, Kyoto, Japan
| |
Collapse
|
3
|
Riddell J, Hempenstall A, Nakata Y, Gregson S, Hayes R, Smith S, Coates M, Charlie L, Perrett C, Newie V, Newie T, Radlof S, Hanson J. The high burden of comorbidities in Aboriginal and Torres Strait Islander Australians living with chronic hepatitis B in Far North Queensland, Australia, and the implications for patient management. PLoS One 2023; 18:e0284151. [PMID: 37023060 PMCID: PMC10079072 DOI: 10.1371/journal.pone.0284151] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 03/26/2023] [Indexed: 04/07/2023] Open
Abstract
BACKGROUND Aboriginal and Torres Strait Islander Australians living with chronic hepatitis B virus (HBV) infection have a significant burden of hepatocellular carcinoma (HCC). The prevalence of comorbidities that increase the risk of HCC in this population is incompletely defined. METHODS This cross-sectional study was performed in remote tropical Queensland, Australia in January 2021. All individuals living with chronic HBV in the region were identified; the prevalence of relevant comorbidities was determined by reviewing medical records. RESULTS All 236 individuals in the cohort identified as Aboriginal and Torres Strait Islander Australians; their median (interquartile range (IQR)) age was 48 (40-62) years; 120/236 (50.9%) were female. Of the 194/236 (82.2%) engaged in HBV care, 61 (31.4%) met criteria for HBV therapy and 38 (62.2%) were receiving it. However, 142/236 (60.2%) were obese, 73/236 (30.9%) were current smokers and 57/236 (24.2%) were drinking alcohol hazardously; 70/236 (29.7%) had ≥2 of these additional risk factors for HCC, only 43/236 (18.2%) had none. Among the 19 patients with confirmed cirrhosis, 9 (47%) were obese, 8 (42%) were currently-or had a history of-drinking alcohol hazardously and 5 (26.3%) were current smokers. Patients also had a median (IQR) of 3 (2-4) cardiovascular risk factors (cigarette smoking, hypertension, impaired glucose tolerance, dyslipidaemia, renal impairment/proteinuria). Only 9/236 (3.8%) did not have one of these 5 comorbidities. CONCLUSIONS Aboriginal and Torres Strait Islander Australians living with chronic HBV in this region of remote Australia have a high engagement with HBV care and the majority of individuals eligible for antiviral therapy are receiving it. However, a significant comorbidity burden increases their risk of cirrhosis, HCC, and premature death. It is essential to integrate chronic HBV care with management of these comorbidities-rather than focusing on HBV alone-to achieve optimal health outcomes.
Collapse
Affiliation(s)
- Jordan Riddell
- Department of Medicine, Cairns Hospital, Cairns, Queensland, Australia
| | | | - Yoko Nakata
- Torres and Cape Hospital and Health Service, Queensland, Australia
| | - Sandra Gregson
- Torres and Cape Hospital and Health Service, Queensland, Australia
| | - Richard Hayes
- Torres and Cape Hospital and Health Service, Queensland, Australia
| | - Simon Smith
- Department of Medicine, Cairns Hospital, Cairns, Queensland, Australia
| | - Marlow Coates
- Torres and Cape Hospital and Health Service, Queensland, Australia
| | - Lizzie Charlie
- Torres and Cape Hospital and Health Service, Queensland, Australia
| | | | - Victoria Newie
- Torres and Cape Hospital and Health Service, Queensland, Australia
| | - Tomi Newie
- Torres and Cape Hospital and Health Service, Queensland, Australia
| | - Sharna Radlof
- Department of Medicine, Cairns Hospital, Cairns, Queensland, Australia
| | - Josh Hanson
- Department of Medicine, Cairns Hospital, Cairns, Queensland, Australia
- Kirby Institute, University of New South Wales, Sydney, Australia
| |
Collapse
|
4
|
Morace A, Abe Y, Honrubia JJ, Iwata N, Arikawa Y, Nakata Y, Johzaki T, Yogo A, Sentoku Y, Mima K, Ma T, Mariscal D, Sakagami H, Norimatsu T, Tsubakimoto K, Kawanaka J, Tokita S, Miyanaga N, Shiraga H, Sakawa Y, Nakai M, Azechi H, Fujioka S, Kodama R. Super-strong magnetic field-dominated ion beam dynamics in focusing plasma devices. Sci Rep 2022; 12:6876. [PMID: 35477961 PMCID: PMC9046386 DOI: 10.1038/s41598-022-10829-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 03/22/2022] [Indexed: 11/21/2022] Open
Abstract
High energy density physics is the field of physics dedicated to the study of matter and plasmas in extreme conditions of temperature, densities and pressures. It encompasses multiple disciplines such as material science, planetary science, laboratory and astrophysical plasma science. For the latter, high energy density states can be accompanied by extreme radiation environments and super-strong magnetic fields. The creation of high energy density states in the laboratory consists in concentrating/depositing large amounts of energy in a reduced mass, typically solid material sample or dense plasma, over a time shorter than the typical timescales of heat conduction and hydrodynamic expansion. Laser-generated, high current–density ion beams constitute an important tool for the creation of high energy density states in the laboratory. Focusing plasma devices, such as cone-targets are necessary in order to focus and direct these intense beams towards the heating sample or dense plasma, while protecting the proton generation foil from the harsh environments typical of an integrated high-power laser experiment. A full understanding of the ion beam dynamics in focusing devices is therefore necessary in order to properly design and interpret the numerous experiments in the field. In this work, we report a detailed investigation of large-scale, kilojoule-class laser-generated ion beam dynamics in focusing devices and we demonstrate that high-brilliance ion beams compress magnetic fields to amplitudes exceeding tens of kilo-Tesla, which in turn play a dominant role in the focusing process, resulting either in a worsening or enhancement of focusing capabilities depending on the target geometry.
Collapse
Affiliation(s)
- A Morace
- Institute of Laser Engineering, Osaka University, Suita, Japan.
| | - Y Abe
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - J J Honrubia
- ETSI Aeronautica y del Espacio, Universidad Politecnica de Madrid, Madrid, Spain
| | - N Iwata
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - Y Arikawa
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - Y Nakata
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - T Johzaki
- Hiroshima University, Hiroshima, Japan
| | - A Yogo
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - Y Sentoku
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - K Mima
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - T Ma
- Lawrence Livermore National Laboratory, Livermore, USA
| | - D Mariscal
- Lawrence Livermore National Laboratory, Livermore, USA
| | - H Sakagami
- National Institute of Fusion Science, Toki, Japan
| | - T Norimatsu
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - K Tsubakimoto
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - J Kawanaka
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - S Tokita
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - N Miyanaga
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - H Shiraga
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - Y Sakawa
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - M Nakai
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - H Azechi
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - S Fujioka
- Institute of Laser Engineering, Osaka University, Suita, Japan
| | - R Kodama
- Institute of Laser Engineering, Osaka University, Suita, Japan
| |
Collapse
|
5
|
Taniguchi S, Nakata Y, Inoue M, Marumoto K. Validation and Reliability of the Japanese Version of the Modified Parkinson Activity Scale (M-PAS). Prog Rehabil Med 2022; 6:20210051. [PMID: 35036614 PMCID: PMC8692784 DOI: 10.2490/prm.20210051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 11/10/2021] [Indexed: 11/12/2022] Open
Abstract
Objective: The Modified Parkinson Activity Scale (M-PAS) is used to identify the most important
activity limitations in patients with Parkinson’s disease. We developed a Japanese
version of the M-PAS and evaluated its reliability and validity. Methods: Twenty-five patients with Parkinson’s disease (median age 71 years old, range 58–83)
were enrolled, and two raters used the Japanese version of M-PAS to assess the subjects.
The inter-rater reliability was evaluated using Cohen’s weighted kappa coefficient for
the total score and three domain scores; systematic error was investigated using
Bland-Altman analysis. Concurrent validity of the Japanese M-PAS was measured using
Spearman’s rank correlation coefficients. Results: Cohen’s kappa coefficients for the total score and the three domain scores were in the
range 0.81–0.98, and 95% confidence intervals included zero for each item, suggesting
excellent agreement and no systematic errors. The scores of the Japanese version of
M-PAS were significantly correlated with the scores of the Movement Disorder
Society–Unified Parkinson’s Disease Rating Scale Part II (Spearman’s rho=–0.56, P
<0.01) and Part III (Spearman’s rho=–0.32, P <0.01). The percentage of patients
with the highest and the lowest scores in the Japanese version of M-PAS suggested no
ceiling or floor effects. Conclusion: The Japanese version of M-PAS showed excellent inter-rater reliability and good
concurrent validity without ceiling or floor effects.
Collapse
Affiliation(s)
- Seira Taniguchi
- Center for Information and Neural Networks, Advanced ICT Research Institute, NICT, Osaka, Japan
| | - Yoko Nakata
- Department of Physical Medicine and Rehabilitation, Hyogo Prefectural Rehabilitation Hospital at Nishi-Harima, Hyogo, Japan
| | - Michiko Inoue
- Department of Physical Medicine and Rehabilitation, Hyogo Prefectural Rehabilitation Hospital at Nishi-Harima, Hyogo, Japan
| | - Kohei Marumoto
- Department of Physical Medicine and Rehabilitation, Hyogo Prefectural Rehabilitation Hospital at Nishi-Harima, Hyogo, Japan
| |
Collapse
|
6
|
Mizobuchi H, Yamamoto K, Yamashita M, Nakata Y, Inagawa H, Kohchi C, Soma GI. Prevention of Diabetes-Associated Cognitive Dysfunction Through Oral Administration of Lipopolysaccharide Derived From Pantoea agglomerans. Front Immunol 2021; 12:650176. [PMID: 34512619 PMCID: PMC8429836 DOI: 10.3389/fimmu.2021.650176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 08/13/2021] [Indexed: 11/26/2022] Open
Abstract
Diabetes-related cognitive dysfunction (DRCD) is a serious complication induced by diabetes. However, there are currently no specific remedies for DRCD. Here, we show that streptozotocin-induced DRCD can be prevented without causing side effects through oral administration of lipopolysaccharide (LPS) derived from Pantoea agglomerans. Oral administration of LPS (OAL) prevented the cerebral cortex atrophy and tau phosphorylation induced by DRCD. Moreover, we observed that neuroprotective transformation of microglia (brain tissue-resident macrophages) is important for preventing DRCD through OAL. These findings are contrary to the general recognition of LPS as an inflammatory agent when injected systemically. Furthermore, our results strongly suggest that OAL promotes membrane-bound colony stimulating factor 1 (CSF1) expression on peripheral leukocytes, which activates the CSF1 receptor on microglia, leading to their transformation to the neuroprotective phenotype. Taken together, the present study indicates that controlling innate immune modulation through the simple and safe strategy of OAL can be an innovative prophylaxis for intractable neurological diseases such as DRCD. In a sense, for modern people living in an LPS-depleted environment, OAL is like a time machine that returns microglia to the good old LPS-abundant era.
Collapse
Affiliation(s)
- Haruka Mizobuchi
- Control of Innate Immunity, Collaborative Innovation Partnership, Kagawa, Japan
| | - Kazushi Yamamoto
- Control of Innate Immunity, Collaborative Innovation Partnership, Kagawa, Japan
| | - Masashi Yamashita
- Control of Innate Immunity, Collaborative Innovation Partnership, Kagawa, Japan
| | - Yoko Nakata
- Research and Development Department Macrophi Inc., Kagawa, Japan
| | - Hiroyuki Inagawa
- Control of Innate Immunity, Collaborative Innovation Partnership, Kagawa, Japan.,Research and Development Department Macrophi Inc., Kagawa, Japan.,Research Institute for Healthy Living, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Chie Kohchi
- Control of Innate Immunity, Collaborative Innovation Partnership, Kagawa, Japan.,Research and Development Department Macrophi Inc., Kagawa, Japan
| | - Gen-Ichiro Soma
- Control of Innate Immunity, Collaborative Innovation Partnership, Kagawa, Japan.,Research and Development Department Macrophi Inc., Kagawa, Japan.,Research Institute for Healthy Living, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| |
Collapse
|
7
|
Kurokawa R, Ota Y, Gonoi W, Hagiwara A, Kurokawa M, Mori H, Maeda E, Amemiya S, Usui Y, Sato N, Nakata Y, Moritani T, Abe O. MRI Findings of Immune Checkpoint Inhibitor-Induced Hypophysitis: Possible Association with Fibrosis. AJNR Am J Neuroradiol 2020; 41:1683-1689. [PMID: 32763900 PMCID: PMC7583108 DOI: 10.3174/ajnr.a6692] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 06/02/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE Hypophysitis is one of the well-known adverse effects of immune checkpoint inhibitors. Immune checkpoint inhibitor-induced hypophysitis frequently causes irreversible hypopituitarism, which requires long-term hormone replacement. Despite the high frequency and clinical significance, characteristic MR imaging findings of immune checkpoint inhibitor-induced hypophysitis have not been established. In the present study, we aimed to review and extract the MR imaging features of immune checkpoint inhibitor-induced hypophysitis. MATERIALS AND METHODS This retrospective international multicenter study comprised 20 patients with melanoma who were being treated with immune checkpoint inhibitors and clinically diagnosed with immune checkpoint inhibitor-induced hypophysitis. Three radiologists evaluated the following MR imaging findings: enlargement of the pituitary gland and stalk; homogeneity of enhancement of the pituitary gland; presence/absence of a well-defined poorly enhanced area and, if present, its location, shape, and signal intensity in T2WI; and enhancement pattern in contrast-enhanced dynamic MR imaging. Clinical symptoms and hormone levels were also recorded. RESULTS Enlargement of the pituitary gland and stalk was observed in 12 and 20 patients, respectively. Nineteen patients showed poorly enhanced lesions (geographic hypoenhancing lesions) in the anterior lobe, and 11 of these lesions showed hypointensity on T2WI. Thyrotropin deficiency and corticotropin deficiency were observed in 19/20 and 12/17 patients, respectively, which persisted in 12/19 and 10/12 patients, respectively, throughout the study period. CONCLUSIONS Pituitary geographic hypoenhancing lesions in the anterior lobe of the pituitary gland are characteristic and frequent MR imaging findings of immune checkpoint inhibitor-induced hypophysitis. They reflect fibrosis and are useful in distinguishing immune checkpoint inhibitor-induced hypophysitis from other types of hypophysitis/tumors.
Collapse
Affiliation(s)
- R Kurokawa
- From the Department of Radiology (R.K., W.G., E.M., S.A., Y.U., O.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Y Ota
- Division of Neuroradiology (Y.O., T.M.), Department of Radiology, Michigan Medicine, Ann Arbor, Michigan
| | - W Gonoi
- From the Department of Radiology (R.K., W.G., E.M., S.A., Y.U., O.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - A Hagiwara
- Department of Radiology (A.H.), Juntendo University School of Medicine, Tokyo, Japan
| | - M Kurokawa
- Department of Radiology (M.K.), Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - H Mori
- Department of Radiology (H.M.), Jichi Medical University, Tochigi-ken, Japan
| | - E Maeda
- From the Department of Radiology (R.K., W.G., E.M., S.A., Y.U., O.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Amemiya
- From the Department of Radiology (R.K., W.G., E.M., S.A., Y.U., O.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Y Usui
- From the Department of Radiology (R.K., W.G., E.M., S.A., Y.U., O.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - N Sato
- Department of Radiology (N.S.), Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Y Nakata
- Department of Radiology (Y.N.), National Center of Neurology and Psychiatry, Tokyo, Japan
| | - T Moritani
- Division of Neuroradiology (Y.O., T.M.), Department of Radiology, Michigan Medicine, Ann Arbor, Michigan
| | - O Abe
- From the Department of Radiology (R.K., W.G., E.M., S.A., Y.U., O.A.), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| |
Collapse
|
8
|
Kobatake K, Ikeda K, Nakata Y, Yamasaki N, Hayashi T, Sentani K, Yasui W, Kaminuma O, Horie S, Black P, Matsubara A, Honda H. Kdm6a deficiency activates inflammatory pathways, promotes M2 macrophage polarization and causes bladder cancer with p53 dysfunction. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32616-1] [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: 10/23/2022] Open
|
9
|
Mizobuchi H, Yamamoto K, Tsutsui S, Yamashita M, Nakata Y, Inagawa H, Kohchi C, Soma GI. A unique hybrid characteristic having both pro- and anti-inflammatory phenotype transformed by repetitive low-dose lipopolysaccharide in C8-B4 microglia. Sci Rep 2020; 10:8945. [PMID: 32488176 PMCID: PMC7265460 DOI: 10.1038/s41598-020-65998-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 05/13/2020] [Indexed: 12/11/2022] Open
Abstract
Although lipopolysaccharide (LPS) is regarded as an inducer of inflammation, previous studies have suggested that repetitive low-dose LPS has neuroprotective effects via immunomodulation of microglia, resident macrophages of brain. However, microglia transformed by the stimulus of repetitive low-dose LPS (REPELL-microglia) are not well characterized, whereas microglia transformed by repetitive high-dose LPS are well studied as an endotoxin tolerance model in which the induction of pro-inflammatory molecules is suppressed. In this study, to characterize REPELL-microglia, the gene expression and phagocytic activity of REPELL-microglia were analyzed with the murine C8-B4 microglia cell line. The REPELL-microglia were characterized by a high expression of pro-inflammatory molecules (Nos2, Ccl1, IL-12B, and CD86), anti-inflammatory molecules (IL-10, Arg1, Il13ra2, and Mrc1), and neuroprotective molecules (Ntf5, Ccl7, and Gipr). In addition, the phagocytic activity of REPELL-microglia was promoted as high as that of microglia transformed by single low-dose LPS. These results suggest the potential of REPELL-microglia for inflammatory regulation, neuroprotection, and phagocytic clearance. Moreover, this study revealed that gene expression of REPELL-microglia was distinct from that of microglia transformed by repetitive high-dose LPS treatment, suggesting the diversity of microglia transformation by different doses of LPS.
Collapse
Affiliation(s)
- Haruka Mizobuchi
- Control of Innate Immunity, Technology Research Association, Kagawa, Japan
| | - Kazushi Yamamoto
- Control of Innate Immunity, Technology Research Association, Kagawa, Japan
| | | | - Masafumi Yamashita
- Control of Innate Immunity, Technology Research Association, Kagawa, Japan
| | | | - Hiroyuki Inagawa
- Control of Innate Immunity, Technology Research Association, Kagawa, Japan.,Macrophi Inc., Kagawa, Japan.,Research Institute for Healthy Living, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | | | - Gen-Ichiro Soma
- Control of Innate Immunity, Technology Research Association, Kagawa, Japan. .,Macrophi Inc., Kagawa, Japan. .,Research Institute for Healthy Living, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan.
| |
Collapse
|
10
|
Phipps KR, Sulaiman C, Simon R, Holalagoudar S, Kohchi C, Nakata Y. Subchronic (90-day) toxicity assessment of Somacy-FP100, a lipopolysaccharide-containing fermented wheat flour extract from Pantoea agglomerans. J Appl Toxicol 2020; 40:1342-1352. [PMID: 32346895 DOI: 10.1002/jat.3987] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/27/2020] [Accepted: 03/31/2020] [Indexed: 01/28/2023]
Abstract
Pantoea agglomerans is a Gram-negative bacterium that is ubiquitous in the environment, colonizing animals, humans, and numerous plants, including cotton and wheat. A lipopolysaccharide-containing fermented wheat flour extract from P. agglomerans (Somacy-FP100) is proposed for use as a food ingredient for individuals seeking foods for healthy aging. Previously published genotoxicity studies with Somacy-FP100 reported its lack of genotoxicity in vitro, but a subchronic toxicity study has not yet been performed. Therefore, to demonstrate the safety of Somacy-FP100 for use as a food ingredient, a 90-day oral (gavage) toxicity study in rats was conducted. Male and female Han Wistar rats were administered vehicle (control) or Somacy-FP100 at 500, 1500, or 4500 mg/kg body weight/day at a dose volume of 10 mL/kg body weight, for at least 90 days. No test article-related adverse clinical signs or effects on body weight, food consumption, or clinical pathology were observed, and there were no macroscopic or microscopic findings related to the test article. Therefore, 4500 mg/kg body weight/day (the highest dose tested and highest feasible dose) was established as the no-observed-adverse-effect level. This absence of subchronic toxicity, in addition to the previously reported lack of genotoxicity, demonstrates the safety of Somacy-FP100 for use as a food ingredient.
Collapse
Affiliation(s)
- Kirt R Phipps
- Intertek Health Sciences Inc., Farnborough, Hampshire, UK
| | | | - Ryan Simon
- Intertek Health Sciences Inc., Mississauga, Ontario, Canada
| | | | - Chie Kohchi
- Macrophi Inc., Takamatsu-shi, Kagawa-ken, Japan.,Control of Innate Immunity, Technology Research Association, Takamatsu-shi, Kagawa-ken, Japan
| | - Yoko Nakata
- Macrophi Inc., Takamatsu-shi, Kagawa-ken, Japan.,Control of Innate Immunity, Technology Research Association, Takamatsu-shi, Kagawa-ken, Japan
| |
Collapse
|
11
|
Hisatomi R, Noguchi A, Yamazaki R, Nakata Y, Gloppe A, Nakamura Y, Usami K. Helicity-Changing Brillouin Light Scattering by Magnons in a Ferromagnetic Crystal. Phys Rev Lett 2019; 123:207401. [PMID: 31809102 DOI: 10.1103/physrevlett.123.207401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Indexed: 06/10/2023]
Abstract
Brillouin light scattering in ferromagnetic materials usually involves one magnon and two photons and their total angular momentum is conserved. Here, we experimentally demonstrate the presence of a helicity-changing two-magnon Brillouin light scattering in a ferromagnetic crystal, which can be viewed as a four-wave mixing process involving two magnons and two photons. Moreover, we observe an unconventional helicity-changing one-magnon Brillouin light scattering, which apparently infringes the conservation law of the angular momentum. We show that the crystal angular momentum intervenes to compensate the missing angular momentum in the latter scattering process.
Collapse
Affiliation(s)
- R Hisatomi
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - A Noguchi
- Komaba Institute for Science (KIS), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - R Yamazaki
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - Y Nakata
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - A Gloppe
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - Y Nakamura
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
- Center for Emergent Matter Science (CEMS), RIKEN, Wako, Saitama 351-0198, Japan
| | - K Usami
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| |
Collapse
|
12
|
Nakata Y, Furuya S, Shimizu H, Akaike H, Hosomura N, Kawaguchi Y, Amemiya H, Sudo M, Kawaida H, Inoue S, Kono H, Ichikawa D. MON-PO416: Effects of Preoperative Skeletal Muscle Mass and Neutrophil Lymphocyte Ratio on the Prognosis of Stage II and III Colorectal Cancer. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32249-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
13
|
Furuya S, Ashizawa N, Nakata Y, Shimizu H, Akaike H, Hosomura N, Kawaguchi Y, Amemiya H, Sudo M, Kawaida H, Inoue S, Kono H, Ichikawa D. MON-PO398: Examination of Immune-Nutritional Index Before and After Surgery and Prognosis for Colon Cancer Patients: Possibility to Nutritional Precision Medicine. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32231-9] [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: 11/15/2022]
|
14
|
Nakata Y, Kohchi C, Ogawa K, Nakamoto T, Yoshimura H, Soma GI. Effects of 3 months continuous intake of supplement containing Pantoea agglomerans LPS to maintain normal bloodstream in adults: Parallel double-blind randomized controlled study. Food Sci Nutr 2017; 6:197-206. [PMID: 29387379 PMCID: PMC5778198 DOI: 10.1002/fsn3.547] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 09/06/2017] [Accepted: 10/12/2017] [Indexed: 12/20/2022] Open
Abstract
In this study, the effects on the maintenance of normal bloodstream by lipopolysaccharide (LPS) were investigated in the parallel-group randomized double-blind study using supplement containing Pantoea agglomerans LPS (201.5 μg/tablet as LPS). Screening was previously performed in the implementation of the study. Adult males and females with normal value to borderline (healthy subjects) in the hematologic parameters, for which reference values were given, were chosen in this study. The period of ingestion of the supplement was 3 months. As the result, a significant decrease in the rate of change (the ratio when the baseline was 1) of HbA1c, which is a glycative stress marker, was found in the group which ingested LPS supplement after 3 months. Also, a significant increase in the number of fingertip capillary vessels was found compared with the control group. From these results, the effects of the maintenance of bloodstream by ingestion of LPS were shown.
Collapse
Affiliation(s)
| | - Chie Kohchi
- Macrophi Inc.Takamatsu Kagawa Japan.,Department of Integrated and Holistic Immunology Faculty of Medicine Kagawa University Miki-cho, Kida-gun Kagawa Japan
| | - Kazue Ogawa
- Non-profit Organization, Linking Setouchi Innate Immune Network Takamatsu Kagawa Japan
| | - Takeru Nakamoto
- Non-profit Organization, Linking Setouchi Innate Immune Network Takamatsu Kagawa Japan.,Central Park ClinicTakamatsu Kagawa Japan
| | - Hiroshi Yoshimura
- Non-profit Organization, Linking Setouchi Innate Immune Network Takamatsu Kagawa Japan.,Nakagawa Hospital Fukuoka Japan
| | - Gen-Ichiro Soma
- Department of Integrated and Holistic Immunology Faculty of Medicine Kagawa University Miki-cho, Kida-gun Kagawa Japan.,Non-profit Organization, Linking Setouchi Innate Immune Network Takamatsu Kagawa Japan.,Niigata University of Pharmacy and Applied Life Sciences Research Organization of Health for Self-Reliance Niigata Japan
| |
Collapse
|
15
|
Sugaya K, Inoue T, Nakata Y, Isozaki E. Independent loss of melanin-containing neurons between the locus coeruleus and substantia nigra in Parkinson’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2082] [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: 11/15/2022]
|
16
|
Kono H, Fujii H, Suzuki-Inoue K, Inoue O, Furuya S, Hirayama K, Akazawa Y, Nakata Y, Sun C, Tsukiji N, Shirai T, Ozaki Y. The platelet-activating receptor C-type lectin receptor-2 plays an essential role in liver regeneration after partial hepatectomy in mice. J Thromb Haemost 2017; 15:998-1008. [PMID: 28294559 DOI: 10.1111/jth.13672] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 05/08/2015] [Indexed: 01/22/2023]
Abstract
Essentials Regeneration role of C-type lectin receptor-2 (CLEC-2) after 70% hepatectomy (HPx) was investigated. Wild-type or CLEC-2 deleted from platelets of chimeric mice (flKO) underwent HPx. The liver/body weight ratio was significantly lower in the flKO than in the wild-type. CLEC-2 plays an essential role in liver regeneration after HPx. SUMMARY Background and aim The aim of the present study was to investigate the role of C-type lectin receptor (CLEC)-2 in liver regeneration following partial liver resection in mice. Materials and methods Irradiated chimeric mice transplanted with fetal liver cells from wild-type (WT) mice, CLEC-2-deleted (KO) mice or mice with CLEC-2 deleted specifically from platelets (flKO) were generated. Mice underwent 70% partial hepatectomy (PH). Immunohistochemical staining was performed to investigate the expression of the endogenous ligand for CLEC-2, podoplanin. The accumulation of platelets in the liver was also quantified. The hepatic expression of the IL-6/gp130 and STAT3, Akt and ERK1/2 was also examined. Results The liver/body weight ratio and expression of all cell proliferation markers were significantly lower in the flKO group than in the WT group. The expression of phosphorylated (p) Akt and pERK1/2 was similar in the WT and flKO groups. On the other hand, the expression of pSTAT3 and IL-6 was significantly stronger in the WT group than in the flKO group. The expression of podoplanin was detected in the hepatic sinusoids of both groups. However, the extent to which platelets accumulated in hepatic sinusoids was significantly less in the flKO group than in the WT group. Conclusion CLEC-2 was involved in hepatic regeneration after liver resection and CLEC-2-related liver regeneration was attributed to the interaction between platelets and sinusoidal endothelial cells.
Collapse
Affiliation(s)
- H Kono
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - H Fujii
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - K Suzuki-Inoue
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - O Inoue
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - S Furuya
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - K Hirayama
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Y Akazawa
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Y Nakata
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - C Sun
- First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - N Tsukiji
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - T Shirai
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Y Ozaki
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| |
Collapse
|
17
|
Nakata Y, Watanabe Y, Narimatsu H, Yoshimura T, Otake H, Sawa T. Abstract PR476. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492862.79208.a0] [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: 11/05/2022]
|
18
|
Nakata Y, Sakurai T, Yamada I. Long-term Intraarterial Infusion Therapy with Prostaglandin E1 in Patients with Ischemic Ulcer of the Extremities. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/153857448802200303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
There is confusion about blood flow of the foot during intraarterial infusion of prostaglandin E 1. The authors studied blood flow in the dorsalis pedis arter ies of patients with ischemic ulcer during the infusion and report the results in this paper. Prostaglandin E1 was continuously infused intraarterially for a mean of 30.9 ±14.5 days in 17 lower extremities of 11 patients with intractable ischemic ulcers. Thirteen of the 17 cases responded to the treatment—especially the cases in which peripheral arteries near the foot joint were patent. In the dorsalis pedis artery, the blood flow increased by 266.3% during the arterial infusion, but no differences were seen in the peak frequency or the percent window denoting the degree of spectral broadening in the infused lower limb. On the other hand, there was no statistically significant difference between the blood flow, peak frequency, or percent window of the contralateral lower limb before, and those parameters during, the infusion. The authors observed complications in 9 of 17 cases, which necessitated the discontinuation of the infusion.
Collapse
Affiliation(s)
- Y. Nakata
- Cardiovascular Surgery, Aichi Prefectural Owari Hospital, Ichinomiya, Japan
| | - T. Sakurai
- Cardiovascular Surgery, Aichi Prefectural Owari Hospital, Ichinomiya, Japan
| | - I. Yamada
- Cardiovascular Surgery, Aichi Prefectural Owari Hospital, Ichinomiya, Japan
| |
Collapse
|
19
|
Ueda T, Nakata Y, Yamasaki N, Oda H, Sentani K, Kanai A, Onishi N, Ikeda K, Sera Y, Honda ZI, Tanaka K, Sata M, Ogawa S, Yasui W, Saya H, Takita J, Honda H. ALKR1275Q perturbs extracellular matrix, enhances cell invasion and leads to the development of neuroblastoma in cooperation with MYCN. Oncogene 2016; 35:4447-58. [DOI: 10.1038/onc.2015.519] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 11/20/2015] [Accepted: 12/04/2015] [Indexed: 12/16/2022]
|
20
|
Nakamura Y, Ando Y, Takagi Y, Murata M, Kozuka T, Nakata Y, Hasebe R, Takagi A, Matsushita T, Shima M, Kojima T. Distinct X chromosomal rearrangements in four haemophilia B patients with entire F9 deletion. Haemophilia 2015; 22:433-9. [PMID: 26686734 DOI: 10.1111/hae.12849] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 03/20/2015] [Revised: 06/09/2015] [Accepted: 09/14/2015] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Haemophilia B is an X-linked bleeding disorder caused by a coagulation factor IX gene (F9) abnormality. Numerous F9 defects have been identified to date; however, only a few with an entire F9 deletion have been reported in detail. AIM To elucidate the cause of severe haemophilia B, we investigated the precise X chromosome abnormalities in four Japanese patients who did not show all amplifications in F9-specific PCR. METHODS We analysed the patient's genomic DNA using Multiplex ligation-dependent probe amplification (MLPA). To assess the extent of any deletions, we further performed mapping PCRs, inverse PCRs or long-range PCRs and direct sequencing analyses of the X chromosome. RESULTS We detected entire F9 deletions in four haemophilia B patients and identified the precise deleted regions of the X chromosome including F9. Patient 1 had a 149-kb deletion with breakpoints 90-kb upstream and 30-kb downstream from F9. Patients 2 and 3 showed 273-kb and 1.19-Mb deletions respectively. Patient 4 had two deleted regions: a 1663-bp deletion 1.34-Mb upstream from F9 and a 7.2-Mb deletion including F9. These distinct breakpoints found in four different patients suggest that the mechanism of X chromosome deletion may be different between individuals. Non-allelic homologous recombination (NAHR), microhomology-mediated break-induced replication (MMBIR) or fork stalling and template switching (FoSTeS) may occur in respective X chromosomes of the four haemophilia B patients analysed. CONCLUSIONS We identified diverse X chromosomal rearrangements in four haemophilia B patients, which might be caused by distinct mechanisms of genomic rearrangement.
Collapse
Affiliation(s)
- Y Nakamura
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Ando
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Takagi
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Murata
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - T Kozuka
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Nakata
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - R Hasebe
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - A Takagi
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Matsushita
- Department of Transfusion Medicine, Nagoya University Hospital, Nagoya, Japan
| | - M Shima
- Department of Paediatric, Nara Medical University, Nara, Japan
| | - T Kojima
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| |
Collapse
|
21
|
Amano S, Inagawa H, Nakata Y, Ohmori M, Kohchi C, Soma GI. Oral Administration of Lipopolysaccharide of Acetic Acid Bacteria Protects Pollen Allergy in a Murine Model. Anticancer Res 2015; 35:4509-4514. [PMID: 26168494] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND/AIM Lipopolysaccharide (LPS), a major component of the cell wall of Gram-negative bacteria, is known to possess strong immune-regulatory activity. We have found and reported the existence of biologically-active LPS in acetic acid bacteria. The LPS shows Limulus-positive activity and activation of macrophages to produce nitric oxide and tumor necrosis factor. In this study, we investigated the anti-allergic effect of an orally-administrated acetic acid bacteria extract containing LPS; the cedar pollinosis model was used. MATERIALS AND METHODS Acetic acid bacteria were isolated from various fruits by Nodai kaihen medium. Then, the anti-allergic effect of acetic acid bacteria extracts was investigated. BALB/c mice were immunized with a mixture of cedar pollen and alum into their peritoneal cavity; they also received additional immunizations of pollen to nasal cavity. After immunizing the mice with pollen into their nasal cavity to trigger an allergic reaction, the frequency of nose scratching was counted for 5 min. RESULTS The bacteria were cultured and prepared and the water-extract contained about 1-10 mg/ml of Limulus positive substances. The extract of acetic acid bacteria induced higher levels of interleukin (IL)-10 and FOXP3 mRNA expression in macrophages (RAW246.7 cell), as assessed by DNA microarray analysis. Oral administration of the acetic acid bacteria extract demonstrated significantly less scratching numbers than control water group with pollen immunization. CONCLUSION These results showed that LPS in acetic acid bacteria has the potential to protect from an allergic reaction, especially from cedar pollinosis.
Collapse
Affiliation(s)
| | - Hiroyuki Inagawa
- Macrophi Inc., Takamatsu-shi, Kagawa, Japan Faculty of Medicine, Kagawa University, Miki-cho, Kita-gun, Kagawa, Japan Control of Innate Immunity, Technology Research Association, Takamatsu-shi, Kagawa, Japan
| | | | | | - Chie Kohchi
- Macrophi Inc., Takamatsu-shi, Kagawa, Japan Faculty of Medicine, Kagawa University, Miki-cho, Kita-gun, Kagawa, Japan Control of Innate Immunity, Technology Research Association, Takamatsu-shi, Kagawa, Japan
| | - Gen-Ichiro Soma
- Macrophi Inc., Takamatsu-shi, Kagawa, Japan Faculty of Medicine, Kagawa University, Miki-cho, Kita-gun, Kagawa, Japan Control of Innate Immunity, Technology Research Association, Takamatsu-shi, Kagawa, Japan Niigata University of Pharmacy and Applied Life Sciences, Niitsu-shi, Niigata, Japan
| |
Collapse
|
22
|
Tamura Y, Inagawa H, Nakata Y, Kohchi C, Soma GI. Effects of the Subaleurone Layer of Rice on Macrophage Activation and Protection of Pollen Allergy in a Murine Model. Anticancer Res 2015; 35:4467-4472. [PMID: 26168488] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND/AIM Oral intake of lipopolysaccharide (LPS) has been demonstrated to be effective in the prevention of various diseases. We have found that the subaleurone layer of rice contains a large amount of LPS. The aim of this study was to evaluate the role of this layer in innate immunity. MATERIALS AND METHODS Using the Saika-style rice polishing process, a sbaleurone layer and the rice retaining a subaleurone layer and polished white rice were prepared from brown rice. Using hot-water extracts from rice, LPS content was measured by the Limulus reaction and the effect of activation of macrophages was evaluated on the basis of their phagocytic activity and nitric monoxide (NO) and tumor necrosis factor (TNF) production levels. Toll-like receptor (TLR)-2-, TLR-4- and TLR-9-transfected human embryonic kidney (HEK) cells were used to identify the activation pathway. An allergy mouse model was used to evaluate the prevention of pollen allergy. RESULTS When compared to polished white rice, rice retaining a subaleurone layer had a 6-fold increase in LPS and an increased macrophage activation when phagocytic activity and NO and TNF production were used as indices. TRL4 was the major pathway for such activation. Anti-allergy test by oral intake of subaleurone showed a significant preventive effect for pollen allergy. CONCLUSION Compared to polished white rice, rice retaining a subaleurone layer contained a high level of LPS with higher macrophage activation. Furthermore, oral administration of the rice demonstrated a preventive effect for pollen allergy, thus indicating its utility as a functional food that has a regulatory effect on innate immunity.
Collapse
Affiliation(s)
| | - Hiroyuki Inagawa
- Macrophi Inc., Takamatsu-shi, Kagawa, Japan Faculty of Medicine, Kagawa University, Miki-cho, Kita-gun, Kagawa, Japan Control of Innate Immunity, Technology Research Association, Takamatsu-shi, Kagawa, Japan
| | | | - Chie Kohchi
- Macrophi Inc., Takamatsu-shi, Kagawa, Japan Faculty of Medicine, Kagawa University, Miki-cho, Kita-gun, Kagawa, Japan Control of Innate Immunity, Technology Research Association, Takamatsu-shi, Kagawa, Japan
| | - Gen-Ichiro Soma
- Macrophi Inc., Takamatsu-shi, Kagawa, Japan Faculty of Medicine, Kagawa University, Miki-cho, Kita-gun, Kagawa, Japan Control of Innate Immunity, Technology Research Association, Takamatsu-shi, Kagawa, Japan Niigata University of Pharmacy and Applied Life Sciences, Niitsu-shi, Niigata, Japan
| |
Collapse
|
23
|
Sogabe N, Sawada SS, Lee IM, Kawakami R, Ishikawa-Takata K, Nakata Y, Mitomi M, Noguchi J, Tsukamoto K, Miyachi M, Blair SN. Weight change after 20 years of age and the incidence of dyslipidemia: a cohort study of Japanese male workers. J Public Health (Oxf) 2015. [PMID: 26199305 DOI: 10.1093/pubmed/fdv089] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 11/13/2022] Open
Abstract
BACKGROUND While heavier weight is known to increase the incidence of dyslipidemia, limited data are available on the relationship between weight gain and its development. METHODS A total of 2647 males were categorized into the following four groups according to the difference between their self-reported weight at 20 years of age and their measured weight in 1994-95: a loss of ≥5% (decrease), loss of <5% or gain of <5% (no change), gain of ≥5 to <15% (increase) and gain of ≥15% (sizable increase). They were followed up until their 2002-03 health examination. Using the 'no change' group as reference, the multivariable-adjusted odds ratio (adjusted for age, body mass index at 20 years of age, physical activity, smoking and alcohol intake) and 95% confidence interval (95% CI) for the incidence of dyslipidemia were determined using logistic regression models. RESULTS A total of 1342 participants developed dyslipidemia during the follow-up period. The 'increase' and 'sizable increase' groups had odds ratios for the incidence of dyslipidemia of 1.97 (95% CI, 1.59-2.45) and 2.68 (2.15-3.34), respectively, demonstrating that there was a significant dose-response association between weight gain since 20 years of age and the incidence of dyslipidemia (P < 0.001 for trend). CONCLUSION These results suggest that dyslipidemia could be prevented by avoiding weight gain in adulthood.
Collapse
Affiliation(s)
- N Sogabe
- Department of Health and Nutrition Sciences, Faculty of Human Health, Komazawa Women's University, Tokyo, Japan
| | - S S Sawada
- Department of Health Promotion and Exercise, National Institute of Health and Nutrition, Tokyo, Japan
| | - I-M Lee
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
| | - R Kawakami
- Department of Health Promotion and Exercise, National Institute of Health and Nutrition, Tokyo, Japan Graduate School of Sport Sciences, Waseda University, Saitama, Japan
| | - K Ishikawa-Takata
- Department of Nutritional Education, National Institute of Health and Nutrition, Tokyo, Japan
| | - Y Nakata
- Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - M Mitomi
- Department of Safety and Health, Tokyo Gas Co. Ltd., Tokyo, Japan
| | - J Noguchi
- Department of Safety and Health, Tokyo Gas Co. Ltd., Tokyo, Japan
| | - K Tsukamoto
- Department of Safety and Health, Tokyo Gas Co. Ltd., Tokyo, Japan
| | - M Miyachi
- Department of Health Promotion and Exercise, National Institute of Health and Nutrition, Tokyo, Japan
| | - S N Blair
- Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| |
Collapse
|
24
|
Hidaka T, Shimada A, Nakata Y, Kodama H, Kurihara H, Tokihiro T, Ihara S. Simple model of pH-induced protein denaturation. Phys Rev E Stat Nonlin Soft Matter Phys 2015; 92:012709. [PMID: 26274205 DOI: 10.1103/physreve.92.012709] [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] [Received: 11/19/2014] [Indexed: 06/04/2023]
Abstract
The pH-induced conformational changes of proteins are systematically studied in the framework of a hydrophobic-polar (HP) model, in which proteins are dramatically simplified as chains of hydrophobic (H) and polar (P) beads on a lattice. We express the electrostatic interaction, the principal driving force of pH-induced unfolding that is not included in the conventional HP model, as the repulsive energy term between P monomers. As a result of the exact enumeration of all of the 14- to 18-mers, it is found that lowest-energy states in many sequences change from single "native" conformations to multiple sets of "denatured" conformations with an increase in the electrostatic repulsion. The switching of the lowest-energy states occurs in quite a similar way to real proteins: it is almost always between two states, while in a small fraction of ≥16-mers it is between three states. We also calculate the structural fluctuations for all of the denatured states and find that the denatured states contain a broad range of incompletely unfolded conformations, similar to "molten globule" states referred to in acid or alkaline denatured real proteins. These results show that the proposed model provides a simple physical picture of pH-induced protein denaturation.
Collapse
Affiliation(s)
- T Hidaka
- Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - A Shimada
- Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Y Nakata
- Institute for Biology and Mathematics of Dynamic Cellular Processes (iBMath), The University of Tokyo, Komaba, Tokyo 153-8904, Japan
- Graduate School of Mathematical Sciences, The University of Tokyo, Komaba, Tokyo 153-8902, Japan
| | - H Kodama
- Institute for Biology and Mathematics of Dynamic Cellular Processes (iBMath), The University of Tokyo, Komaba, Tokyo 153-8904, Japan
- Graduate School of Mathematical Sciences, The University of Tokyo, Komaba, Tokyo 153-8902, Japan
| | - H Kurihara
- Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
- Institute for Biology and Mathematics of Dynamic Cellular Processes (iBMath), The University of Tokyo, Komaba, Tokyo 153-8904, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Chiyoda-ku, Tokyo 102-0076, Japan
| | - T Tokihiro
- Institute for Biology and Mathematics of Dynamic Cellular Processes (iBMath), The University of Tokyo, Komaba, Tokyo 153-8904, Japan
- Graduate School of Mathematical Sciences, The University of Tokyo, Komaba, Tokyo 153-8902, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Chiyoda-ku, Tokyo 102-0076, Japan
| | - S Ihara
- Institute for Biology and Mathematics of Dynamic Cellular Processes (iBMath), The University of Tokyo, Komaba, Tokyo 153-8904, Japan
- Graduate School of Mathematical Sciences, The University of Tokyo, Komaba, Tokyo 153-8902, Japan
- Research Center for Advanced Science and Technology, The University of Tokyo, Komaba, Tokyo 153-8904, Japan
| |
Collapse
|
25
|
Nagaoka T, Nakamura A, Yamazaki T, Nakata Y, Endo K, Sakaguchi T, Kawata N, Sota T. Hyperspectroscopic imager for baby fibers. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:218-21. [PMID: 25569936 DOI: 10.1109/embc.2014.6943568] [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: 11/09/2022]
Abstract
Hyperspectral imaging system for diagnosing digestive diseases was newly developed in order to obtain information on pathology beyond morphology of lesions. In order to guide light reflected from a lesion, a baby fiber, which can be inserted in a forceps channel of the electronic endoscope, was also developed. The performance of the system was evaluated by animal experiment. Obtained hyperspectral data were found to have sufficient quality endurable to practical use. Harmful phenomena to a living body were not observed within the experiment. It was considered from the animal experiment that the present system could be practically used for humans.
Collapse
|
26
|
Morioka N, Suekama K, Zhang FF, Kajitani N, Hisaoka-Nakashima K, Takebayashi M, Nakata Y. Amitriptyline up-regulates connexin43-gap junction in rat cultured cortical astrocytes via activation of the p38 and c-Fos/AP-1 signalling pathway. Br J Pharmacol 2014; 171:2854-67. [PMID: 24641259 DOI: 10.1111/bph.12614] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [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: 09/23/2013] [Revised: 01/09/2014] [Accepted: 01/25/2014] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Intercellular communication via gap junctions, comprised of connexin (Cx) proteins, allow for communication between astrocytes, which in turn is crucial for maintaining CNS homeostasis. The expression of Cx43 is decreased in post-mortem brains from patients with major depression. A potentially novel mechanism of tricyclic antidepressants is to increase the expression and functioning of gap junctions in astrocytes. EXPERIMENTAL APPROACH The effect of amitriptyline on the expression of Cx43 and gap junction intercellular communication (GJIC) in rat primary cultured cortical astrocytes was investigated. We also investigated the role of p38 MAPK intracellular signalling pathway in the amitriptyline-induced expression of Cx43 and GJIC. KEY RESULTS Treatment with amitriptyline for 48 h significantly up-regulated Cx43 mRNA, protein and GJIC. The up-regulation of Cx43 was not monoamine-related since noradrenaline, 5-HT and dopamine did not induce Cx43 expression and pretreatment with α- and β-adrenoceptor antagonists had no effect. Intracellular signalling involved p38 MAPK, as amitriptyline significantly increased p38 MAPK phosphorylation and Cx43 expression and GJIC were significantly blocked by the p38 inhibitor SB 202190. Furthermore, amitriptyline-induced Cx43 expression and GJIC were markedly reduced by transcription factor AP-1 inhibitors (curcumin and tanshinone IIA). The translocation of c-Fos from the cytosol and the nucleus of cortical astrocytes was increased by amitriptyline, and this response was dependent on p38 activity. CONCLUSION AND IMPLICATION These findings indicate a novel mechanism of action of amitriptyline through cortical astrocytes, and further suggest that targeting this mechanism could lead to the development of a new class of antidepressants.
Collapse
Affiliation(s)
- N Morioka
- Department of Pharmacology, Hiroshima University Graduate School of Biomedical & Health Sciences, Minami-ku, Hiroshima, Japan
| | | | | | | | | | | | | |
Collapse
|
27
|
Nakata K, Nakata Y, Inagawa H, Nakamoto T, Yoshimura H, Soma GI. Pantoea agglomerans lipopolysaccharide maintains bone density in premenopausal women: a randomized, double-blind, placebo-controlled trial. Food Sci Nutr 2014; 2:638-46. [PMID: 25493180 PMCID: PMC4256567 DOI: 10.1002/fsn3.145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 06/08/2014] [Accepted: 06/09/2014] [Indexed: 12/23/2022] Open
Abstract
Lipopolysaccharide fromPantoea agglomerans (LPSp) facilitates Ca and P turnover in chicken calvaria and femurs. This study investigated osteoporosis prevention by the oral administration of LPSp in mice and in double-blind clinical tests. Using ovariectomized (OVX) osteoporosis mice model, we investigated the effects of LPSp on the bone density and Ca concentration after ingesting LPSp-containing water for 4 weeks. Oral administration of LPSp tended to suppress the decline in the bone density and the cortical bone thickness in the OVX mice. Moreover, the Ca concentrations were maintained in the OVX-LPSp mice. The effects of LPSp on bone turnover were tested in randomized and double-blind clinical test subjects, who were healthy women aged 40-79 years. The subjects ingested either soy milk without LPSp (control group) or with LPSp (LPSp group) for 3 months. The results showed that the LPSp group on premenopause maintained their bone density compared with the control group pre- and postmenopause. Moreover, these effects were maintained for 2 months postobservation. LPSp maintains bone volume and density in vivo. Thus, a combination of soy milk and LPSp may be useful for osteoporosis prevention.
Collapse
Affiliation(s)
- Kazue Nakata
- Department of Nutritional Science, Okayama Prefectural University 111 Kuboki, Soja, 719-1197, Japan ; Non-profit Organization, Linking Setouchi Innate Network 2217-16 Hayashi-cho, Takamatsu, Kagawa, 761-0301, Japan
| | - Yoko Nakata
- Non-profit Organization, Linking Setouchi Innate Network 2217-16 Hayashi-cho, Takamatsu, Kagawa, 761-0301, Japan
| | - Hiroyuki Inagawa
- Department of Integrated and Holistic Immunology, Faculty of Medicine, Kagawa University 1750-1 Oaza-ikenobe, Miki-cho, Kida-gun, Kagawa, 761-0793, Japan ; Control of Innate Immunity Technology Research Association 2217-16, Hayashi-cho, Takamatsu, Kagawa, 761-0301, Japan
| | - Takeru Nakamoto
- Non-profit Organization, Linking Setouchi Innate Network 2217-16 Hayashi-cho, Takamatsu, Kagawa, 761-0301, Japan ; Central Park Clinic 1-10-16 Ban-cho, Takamatsu, Kagawa, 760-0017, Japan
| | - Hiroshi Yoshimura
- Non-profit Organization, Linking Setouchi Innate Network 2217-16 Hayashi-cho, Takamatsu, Kagawa, 761-0301, Japan ; Nakagawa Hospital 2-17-17 Mukaishin-machi, Fukuoka-minami, Fukuoka, 811-1345, Japan
| | - Gen-Ichiro Soma
- Department of Integrated and Holistic Immunology, Faculty of Medicine, Kagawa University 1750-1 Oaza-ikenobe, Miki-cho, Kida-gun, Kagawa, 761-0793, Japan ; Control of Innate Immunity Technology Research Association 2217-16, Hayashi-cho, Takamatsu, Kagawa, 761-0301, Japan ; Niigata University of Pharmacy and Applied Life Sciences 265-1 Higashijima, Akiha, Niigata, 956-8603, Japan
| |
Collapse
|
28
|
Nakata Y, Tadaki T, Tanaka A, Shimizu K. Effect of Heat Treatments on Morphology and Transformation Temperatures of Sputtered Ti-Ni Thin Films. ACTA ACUST UNITED AC 2014. [DOI: 10.1051/jp4/199558671] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
|
29
|
Kichikawa T, Muramatsu H, Takahashi N, Urushiyama Y, Sato Y, Takizawa Y, Nakata Y, Sato S, Ikeda H, Kobayashi D, Ito S, Miyagawa Y, Abe A, Ishikawa H, Murasawa A, Nakazono K. AB1151-HPR Can the Understanding of Disease Activity Score by Patients Lead to Better Satisfactions of the Rheumatoid Arthritis Treatment? Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
30
|
Morioka N, Tokuhara M, Nakamura Y, Idenoshita Y, Harano S, Zhang FF, Hisaoka-Nakashima K, Nakata Y. Primary cultures of rat cortical microglia treated with nicotine increases in the expression of excitatory amino acid transporter 1 (GLAST) via the activation of the α7 nicotinic acetylcholine receptor. Neuroscience 2013; 258:374-84. [PMID: 24300109 DOI: 10.1016/j.neuroscience.2013.11.044] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 11/22/2013] [Accepted: 11/23/2013] [Indexed: 10/25/2022]
Abstract
Although the clearance of glutamate from the synapse under physiological conditions is performed by astrocytic glutamate transporters, their expression might be diminished under pathological conditions. Microglia glutamate transporters, however, might serve as a back-up system when astrocytic glutamate uptake is impaired, and could have a prominent neuroprotective function under pathological conditions. In the current study, the effect of nicotine, well known as a neuroprotective molecule, on the function of glutamate transporters in cultured rat cortical microglia was examined. Reverse transcription polymerase chain reaction and pharmacological approaches demonstrated that, glutamate/aspartate transporter (GLAST), not glutamate transporter 1 (GLT-1), is the major functional glutamate transporter in cultured cortical microglia. Furthermore, the α7 subunit was demonstrated to be the key subunit comprising nicotinic acetylcholine (nACh) receptors in these cells. Treatment of cortical microglia with nicotine led to a significant increase of GLAST mRNA expression and (14)C-glutamate uptake in a concentration- and time-dependent manner, which were markedly inhibited by pretreatment with methyllycaconitine, a selective α7 nACh receptor antagonist. The nicotine-induced expression of GLAST mRNA and protein is mediated through an inositol trisphosphate (IP3) and Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) depend intracellular pathway, since pretreatment with either xestospongin C, an IP3 receptor antagonist, or KN-93, a CaMKII inhibitor, blocked GLAST expression. Together, these findings indicate that activation of nACh receptors, specifically those expressing the α7 subunit, on cortical microglia could be a key mechanism of the neuroprotective effect of nACh receptor ligands such as nicotine.
Collapse
Affiliation(s)
- N Morioka
- Department of Pharmacology, Hiroshima University Graduate School of Biomedical & Health Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
| | - M Tokuhara
- Department of Pharmacology, Hiroshima University Graduate School of Biomedical & Health Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Y Nakamura
- Department of Pharmacology, Hiroshima University Graduate School of Biomedical & Health Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Y Idenoshita
- Department of Pharmacology, Hiroshima University Graduate School of Biomedical & Health Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - S Harano
- Department of Pharmacology, Hiroshima University Graduate School of Biomedical & Health Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - F F Zhang
- Department of Pharmacology, Hiroshima University Graduate School of Biomedical & Health Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - K Hisaoka-Nakashima
- Department of Pharmacology, Hiroshima University Graduate School of Biomedical & Health Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Y Nakata
- Department of Pharmacology, Hiroshima University Graduate School of Biomedical & Health Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| |
Collapse
|
31
|
Shiraga H, Fujioka S, Nakai M, Watari T, Nakamura H, Arikawa Y, Hosoda H, Nagai T, Koga M, Kikuchi H, Ishii Y, Sogo T, Shigemori K, Nishimura H, Zhang Z, Tanabe M, Ohira S, Fujii Y, Namimoto T, Sakawa Y, Maegawa O, Ozaki T, Tanaka K, Habara H, Iwawaki T, Shimada K, Key M, Norreys P, Pasley J, Nagatomo H, Johzaki T, Sunahara A, Murakami M, Sakagami H, Taguchi T, Norimatsu T, Homma H, Fujimoto Y, Iwamoto A, Miyanaga N, Kawanaka J, Kanabe T, Jitsuno T, Nakata Y, Tsubakimoto K, Sueda K, Kodama R, Kondo K, Morio N, Matsuo S, Kawasaki T, Sawai K, Tsuji K, Murakami H, Sarukura N, Shimizu T, Mima K, Azechi H. Implosion and heating experiments of fast ignition targets by Gekko-XII and LFEX lasers. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20135901008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
32
|
Komori K, Mukai M, Ishitoko C, Sugitani K, Nakata Y, Tei G, Masu Y, Shioyama W, Awata N, Hori M. Relationship Between Hypertension and Proteinuria Associated with Bevacizumab : Retrospective Study on Cardiac Toxicity. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
33
|
Ito Y, Nakata Y, Nakamura S, Nagaya K. [A case of subglottic stenosis with bridging granuloma after intubation with double-lumen endotracheal tube]. Masui 2013; 62:946-948. [PMID: 23984570] [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: 06/02/2023]
Abstract
We present a case of subglottic stenosis with rare bridging granuloma after intubation with double-lumen endotracheal tube. An 81-year-old woman was diagnosed with the lung tumor and scheduled for the thoracoscopic surgery. We induced anesthesia with propofol, remifentanil and rocuronium. A 35 Fr double-lumen intratracheal tube was inserted to the trachea with some resistance, when the tube passed through the glottis. A few days later, she suffered from respiratory discomfort. An otolaryngologist examined her larynx and subglottis. Laryngoscopic examination revealed bridging granuloma leading to tracheal stenosis. Tracheostomy and resection of granuloma were performed, and her symptom improved. If we feel resistance in intubating a double-lumen endotracheal tube in a patient with a history of intubation with a tracheal tube, we should operate gently adjusting the size of the tracheal tube.
Collapse
Affiliation(s)
- Yosuke Ito
- Department of Anesthesia, Tohoku Kousei Nenkin Hospital, Sendai 983-8512
| | | | | | | |
Collapse
|
34
|
Nakata Y, Yasuda T, Mochizuki H. Recent progress in gene therapy for Parkinson's disease. Curr Mol Med 2013; 12:1311-8. [PMID: 22834832 DOI: 10.2174/156652412803833580] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 04/30/2012] [Accepted: 05/01/2012] [Indexed: 11/22/2022]
Abstract
Parkinson's disease (PD) is an age-related and the second most common neurodegenerative disorder beyond Alzheimer's disease. A neuropathological hallmark of PD is a prominent loss of dopaminergic neurons in the substantia nigra projecting into the caudate and putamen. Oral administration of L-dopa and/or dopamine agonists ameliorates cardinal motor symptoms of PD. However, an intermittent and long-term treatment with L-dopa frequently induces adverse side effects such as motor fluctuations and dyskinesia. As alternative therapeutic strategies, the following four approaches are currently under evaluation for clinical gene therapy trials in PD; 1) recombinant adeno-associated virus 2 system encoding aromatic L-amino acid decarboxylase (AADC), 2) glutamic acid decarboxylase (GAD) and 3) Neurturin, and 4) equine infectious anemia virus-based lentiviral system encoding AADC, tyrosine hydroxylase (TH) and GTP cyclohydrolase I (GCH) in a single transcriptional unit. GAD and Neurturin have been assessed in double blind placebocontrolled phase II studies; GAD showed a significant improvement in motor function, and Neurturin, although it failed to show significant effects at 12 months post-treatment, exhibited promising outcomes in additional examinations at 18 months. The other two approaches also represented significant effects in phase I or I/II studies. Adverse side effects due to surgery have not been observed. Here, we review preclinical and clinical trials encouraging further investigations of curative treatment for the patients suffering from PD.
Collapse
Affiliation(s)
- Y Nakata
- Division of Neuroregenerative Medicine, Kitasato University School of Medicine, Japan
| | | | | |
Collapse
|
35
|
Preston-Thomas A, Fagan P, Nakata Y, Anderson E. Chronic hepatitis B--care delivery and patient knowledge in the Torres Strait region of Australia. Aust Fam Physician 2013; 42:225-231. [PMID: 23550250] [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: 06/02/2023]
Abstract
BACKGROUND Chronic hepatitis B (CHB) disproportionately affects Indigenous Australians. This article reports the findings of two studies in the Torres Strait and Northern Peninsula area (T&NPA) of Queensland in Australia. The aim of the first study was to assess CHB care delivery, the second assessed CHB patient knowledge about the condition. METHODS A pathology database search (1997-2009) identified a cohort of potential CHB patients in T&NPA. A file audit assessed care delivery for a random sample of 83 CHB patients. A survey assessed knowledge of 42 CHB patients. RESULTS A total of 365 hepatitis B positive patients were identified. There are gaps in patient review, monitoring, follow up and specialist referral. Patients had limited knowledge about CHB and measures to reduce its health impact. DISCUSSION Chronic hepatitis B affects a substantial number of Indigenous adults in the T&NPA. There is limited adherence to clinical guidelines. Improved uptake of clinical guidelines adapted for remote areas, incorporation of CHB into systematic chronic disease care, and culturally appropriate patient education resources and programs are needed.
Collapse
Affiliation(s)
- Annie Preston-Thomas
- Cairns Public Health Unit, Tropical Regional Services, Department of the Chief Health Officer, Cairns, Queensland.
| | | | | | | |
Collapse
|
36
|
Kamiya K, Sato N, Nakata Y, Ito K, Kimura Y, Ota M, Takahashi A, Mori H, Kunimatsu A, Ohtomo K. Postoperative transient reduced diffusion in the ipsilateral striatum and thalamus. AJNR Am J Neuroradiol 2012; 34:524-32. [PMID: 22899787 DOI: 10.3174/ajnr.a3242] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND PURPOSE Restriction of diffusion has been reported in the early phase of secondary neuronal degeneration, such as wallerian degeneration. The purpose of this study was to investigate postoperative transient reduced diffusion in the ipsilateral striatum and thalamus as a remote effect of surgery. MATERIALS AND METHODS Six hundred two postoperative MR imaging examinations in 125 patients after cerebral surgery were retrospectively reviewed, focusing on the presence of reduced diffusion in the striatum and/or thalamus. The distribution of reduced diffusion in the striatum was classified into 3 groups: anterior, central, and posterior. Reduced diffusion in the thalamus was also classified on the basis of the anatomic locations of the thalamic nuclei. Further follow-up MRI was available in all patients with postoperative reduced diffusion, and acute infarctions were excluded. The patient medical records were reviewed to evaluate neurologic status. RESULTS Restriction of diffusion was observed in the striatum and/or thalamus ipsilateral to the surgical site in 17 patients (13.6%). The distribution of signal abnormality correlated with the location of the operation, in concordance with the architecture of the striatocortical and thalamocortical connections. Reduced diffusion was observed from days 7 to 46 after the operation, especially during days 8-21. The signal abnormalities completely resolved on follow-up examinations. The median follow-up period was 202 days (interquartile range, 76-487 days). CONCLUSIONS Postoperative transient reduced diffusion in the ipsilateral striatum and/or thalamus likely represents an early phase of secondary neuronal degeneration based on its characteristic distribution and time course. Clinically, this reduced diffusion should not be mistaken for postoperative ischemic injury.
Collapse
Affiliation(s)
- K Kamiya
- Department of Radiology, National Center Hospital of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Ota M, Ishikawa M, Sato N, Hori H, Sasayama D, Hattori K, Teraishi T, Nakata Y, Kunugi H. Glutamatergic changes in the cerebral white matter associated with schizophrenic exacerbation. Acta Psychiatr Scand 2012; 126:72-8. [PMID: 22432602 DOI: 10.1111/j.1600-0447.2012.01853.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [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: 11/30/2022]
Abstract
OBJECTIVE Glutamatergic dysfunction in the brain has been implicated in the pathophysiology of schizophrenia. This study was aimed to examine several brain chemical mediators, including Glx (glutamate + glutamine), using (1)H magnetic resonance spectroscopy (MRS) in medicated patients with schizophrenia, with and without psychotic exacerbation. METHOD (1)H MRS was acquired in 24 patients with schizophrenia, with psychotic exacerbation; 22 patients without exacerbation; and 27 age- and sex-matched healthy volunteers. The levels of metabolites were measured in the left frontal and inferior parietal white matter and compared across the three groups. RESULTS The Glx level was significantly elevated in the left inferior parietal white matter in the patients with psychotic exacerbation in comparison with that in the healthy volunteers and the patients without exacerbation (P < 0.05). We also detected that there was a significant correlation between Positive and Negative Syndrome Scale-positive scale and Glx level in the left parietal white matter (r = 0.51, P < 0.001). CONCLUSION Higher than normal Glx levels indicate glutamatergic overactivity in the left inferior parietal white matter with schizophrenic exacerbation, a finding that is in accordance with the glutamatergic hypothesis in schizophrenia. The Glx level measured by (1)H MRS could be a biomarker for exacerbation in schizophrenia.
Collapse
Affiliation(s)
- M Ota
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Narimatsu H, Kakinuma A, Sawa T, Komatsu T, Matsumura T, Kami M, Nakata Y. Usefulness of a bidirectional e-learning material for explaining surgical anesthesia to cancer patients. Ann Oncol 2011; 22:2121-2128. [DOI: 10.1093/annonc/mdq718] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
39
|
Sugimoto T, Morioka N, Sato K, Hisaoka K, Nakata Y. Noradrenergic regulation of period1 expression in spinal astrocytes is involved in protein kinase A, c-Jun N-terminal kinase and extracellular signal-regulated kinase activation mediated by α1- and β2-adrenoceptors. Neuroscience 2011; 185:1-13. [DOI: 10.1016/j.neuroscience.2011.04.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 04/08/2011] [Accepted: 04/08/2011] [Indexed: 10/18/2022]
|
40
|
Nakata Y, Sannomiya H, Moriuchi S, Yokota A, Inoue Y, Itoh M, Itoh H. Study of Bandgap Profiling Control on Photovoltaic Performance in the Three Stacked Amorphous Solar Cells. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-192-15] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTA series of systematic experiments has been made on a bandgap profiling control using a-SiGe and a-SiC cells to clarify the cause for the improvement of the photovoltaic performance by the bandgap profiling in the photovoltaic active layer. It has been shown from the analysis that the most important contribution to the cell performance is an optimization of the ambipolar carrier collection by the bandgap profiling. On the basis of the results, an efficiency of 10.1% was obtained at the promising a-SiC/a-Si/ a-SiGe multi-bandgap stacked cell by the bandgap profiling.
Collapse
|
41
|
Hori Y, Tada H, Nakamura K, Naito S, Nakata Y, Goto K, Imamoto J, Yokokawa M, Tanaka Y, Funabashi N, Aonuma K, Komuro I, Taniguchi K, Oshima S. Presence of structural heart disease and left ventricular dysfunction predict hospitalizations for new-onset heart failure after right ventricular apical pacing. Europace 2010; 13:230-6. [DOI: 10.1093/europace/euq443] [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: 11/14/2022] Open
|
42
|
Nakata Y, Sato N, Masumoto T, Mori H, Akai H, Nobusawa H, Adachi Y, Oba H, Ohtomo K. Parasellar T2 dark sign on MR imaging in patients with lymphocytic hypophysitis. AJNR Am J Neuroradiol 2010; 31:1944-50. [PMID: 20651017 DOI: 10.3174/ajnr.a2201] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE MR imaging findings of LYH and pituitary adenomas are similar, but the therapeutic strategies are completely different. The purpose of this study was to evaluate sellar and parasellar MR imaging findings in patients with both diseases, as well as characteristic clinical findings. MATERIALS AND METHODS Clinical findings, including endocrinologic study and MR images of 20 patients with LYH and 22 patients with pituitary adenoma, were retrospectively reviewed. We evaluated the MR images in relation to the following: 1) the PPHI on T1-weighted images, 2) thickened stalk (>3.5 mm), 3) pituitary symmetry, 4) pituitary enhancement pattern, 5) a dural tail, and 6) parasellar signal intensity on T2- and T1-weighted images. RESULTS Between patients with LYH and those with pituitary adenoma, a significant difference was identified for the number of patients with loss of PPHI, thickened stalk, pituitary symmetry, homogeneous enhancement, and parasellar dark signal intensity on T2-weighted images by statistical analysis (Fisher exact probability test, P < .05). Among them, only parasellar dark signal intensity on T2-weighted images had no false-positive cases. CONCLUSIONS The parasellar T2 dark sign can be a specific finding used to distinguish pituitary adenoma from LYH.
Collapse
Affiliation(s)
- Y Nakata
- Department of Radiology, National Center Hospital of Neurology and Psychiatry, Tokyo, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Yamada H, Nakata Y, Ninomiya S, Seki T, Aoki T, Tamura J, Matsuo J. MeV-energy probe SIMS imaging of major components in washed and fractured animal cells. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3408] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
44
|
Ichiki K, Ninomiya S, Nakata Y, Yamada H, Seki T, Aoki T, Matsuo J. Surface morphology of PMMA surfaces bombarded with size-selected gas cluster ion beams. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3444] [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: 11/11/2022]
|
45
|
Nakata Y, Barkovich AJ, Wahl M, Strominger Z, Jeremy RJ, Wakahiro M, Mukherjee P, Sherr EH. Diffusion abnormalities and reduced volume of the ventral cingulum bundle in agenesis of the corpus callosum: a 3T imaging study. AJNR Am J Neuroradiol 2009; 30:1142-8. [PMID: 19246528 DOI: 10.3174/ajnr.a1527] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND PURPOSE Patients with agenesis of the corpus callosum (AgCC) exhibit cognitive and behavioral impairments that are not replicated by surgical transection of the callosum, suggesting that other anatomic changes may contribute to the observed clinical findings. The purpose of this study was to determine whether the ventral cingulum bundle (VCB) is affected in patients with AgCC by using diffusion tensor imaging (DTI) and volumetry. MATERIALS AND METHODS Twelve participants with AgCC (8 males and 4 females; mean age, 30 +/- 20) and 12 control subjects matched for age and sex (mean age, 37 +/- 19) underwent MR imaging and DTI at 3T. 3D fiber tracking of the VCB was generated from DTI and the average fractional anisotropy (FA) was computed for the tracked fibers. Additionally, the volume, cross-sectional area, and length of the VCB were measured by manually drawn regions of interest on thin-section coronal T1-weighted images. The Student t test was used to compare these results. RESULTS Compared with controls, subjects with AgCC demonstrated significantly reduced FA in the right VCB (P = .0098) and reduced volume and cross-sectional areas of both the left and right VCB (P < .001 for all metrics). The length of the VCB was also significantly reduced in the complete AgCC subgroup compared with controls (P = .030 in the right and P = .046 in the left, respectively). CONCLUSIONS Patients with AgCC have abnormal microstructure and reduced volume of the VCB, suggesting that abnormalities in intrahemispheric white matter tracts may be an important contributor to the clinical syndrome in patients with AgCC.
Collapse
Affiliation(s)
- Y Nakata
- Department of Radiology, University of California, San Francisco, San Francisco, CA 94143-0628, USA.
| | | | | | | | | | | | | | | |
Collapse
|
46
|
Kokawa K, Mikami Y, Sakata H, Oki N, Tanakas T, Yamazaki M, Nakata Y, Umesaki N. Clinical outcome and prognostic factors in borderline tumors of the ovary. Results from 17 years' experience in the Kinki District of Japan (1990-2006). EUR J GYNAECOL ONCOL 2009; 30:155-161. [PMID: 19480244] [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: 05/27/2023]
Abstract
PURPOSE OF INVESTIGATION The clinical characteristics and long-term prognostic factors of borderline ovarian tumors (BOTs) were evaluated. METHODS Data from patients who were treated for BOTs in the Kinki District of Japan from 1990 to 2006 were revieved. Two hundred and twenty-two cases were retrospectively investigated for stage, surgical procedure, histopathological features, adjuvant chemotherapy and prognosis. RESULTS FIGO stages included 212 patients with Stage I disease, three with Stage II and seven with Stage III. One hundred and sixty-nine cases were diagnosed as mucinous tumor, 47 were serous, and six were others. Radical surgery was performed in 136 patients and conservative surgery in 86 patients. Only two patients showed invasive peritoneal implants. Forty patients received adjuvant chemotherapy. The survival rate was 95% at ten-years. Statistical analysis showed that earlier stage, absence of residual tumors, peritoneal implants, ovarian stromal involvement, and negative peritoneal cytology were associated with significantly better overall survival. CONCLUSION The prognosis of patients with BOT is excellent. There are insufficient data to support a role for aggressive surgery and adjuvant chemotherapy for the possibility of prolonged survival.
Collapse
Affiliation(s)
- K Kokawa
- Department of Obstetrics and Gynecology, Wakayama Medical University, Wakayama, Japan
| | | | | | | | | | | | | | | |
Collapse
|
47
|
Ichikawa H, Kataoka M, Hiramatsu J, Ohmori M, Tanimoto Y, Kanehiro A, Nakata Y, Tanimoto M. Quantitative analysis of propionibacterial DNA in bronchoalveolar lavage cells from patients with sarcoidosis. Sarcoidosis Vasc Diffuse Lung Dis 2008; 25:15-20. [PMID: 19070256] [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
BACKGROUND AND AIM OF THE WORK The causes of sarcoidosis are still unknown. Propionibacterial subspieces are thought to be one of the most likely sources of antigens. Here we attempted to measure the amount of propionibacterial DNA in bronchoalveolar lavage (BAL) cell samples from patients with sarcoidosis and other pulmonary diseases. METHODS We examined BAL cells from 42 patients with sarcoidosis and 30 controls. Using quantitative polymerase chain reaction (PCR) for 16S rRNA of Propionibacterium acnes (P. acnes) and Propionibacterium granulosum (P. granulosum), we measured the amount of propionibacterial DNA in 500 ng of total DNA extracted from BAL cells from patients with sarcoidosis or other lung diseases. The correlation between clinical findings and the results of quantitative PCR were analyzed. RESULTS The mean level of P. acnes DNA from patients with sarcoidosis was 59.9 genomes per 500 ng of total DNA, which was significantly higher than that in controls (20.7 genomes, p<0.000l). The mean level of P. granulosum DNA from patients with sarcoidosis was 1.2 genomes, which was similar to that in controls (1.0 +/-1.6 genomes, p=0.52). The number of genomes of P. acnes in BAL cells was correlated with the serum angiotensin-converting enzyme (ACE) level and the percentage of macrophages in BAL fluid from patients with sarcoidosis. CONCLUSIONS The amount of P. acnes DNA in BAL cells from patients with sarcoidosis was significantly higher than that in BAL cells from patients with other pulmonary diseases. P. acnes may be involved in the pathogenesis of sarcoidosis.
Collapse
Affiliation(s)
- H Ichikawa
- Department of Hematology, Oncology and Respiratory Medicine, Okayama University Medical School, Okayama city, Okayama, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Kondoh K, Nakata Y, Yamaoka T, Itakura M, Hayashi M, Yamada K, Hata JI, Yamada T. Altered cellular immunity in transgenic mice with T cell-specific expression of human D4-guanine diphosphate-dissociation inhibitor (D4-GDI). Int Immunol 2008; 20:1299-311. [DOI: 10.1093/intimm/dxn084] [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: 01/25/2023] Open
|
49
|
Nakata Y, Hirashima T, Kondou Y, Tokuoka Y, Imazato H, Iwata K, Oomori Y, Yamato A, Shimizu S, Nagao S, Matsui K, Abe N. [Involvement of zinc in taste disturbance occurring during treatment for malignant tumor in the chest and the effects of polaprezinc oral disintegrating tablets (a retrospective study)]. Gan To Kagaku Ryoho 2008; 35:955-959. [PMID: 18633224] [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: 05/26/2023]
Abstract
We analyzed the correlation between serum zinc levels and taste disturbance, and between patient backgrounds and serum zinc levels or taste disturbance, and evaluated the effects of polaprezinc oral disintegrating tablets on taste disturbance in 29 patients with lung cancer and one patient with malignant pleural mesothelioma who were receiving chemotherapy. Taste disturbance developed in 11 (36.7%) out of 30 patients. Serum zinc levels significantly correlated with taste disturbance (p=0.0227). Serum zinc levels were significantly lower (p=0.0235) and taste disturbance tended to be more frequent (p=0.0625) in males. Polaprezinc improved taste disturbance in 5 of 8 patients.
Collapse
Affiliation(s)
- Yoko Nakata
- Dept. of Pharmacy, Osaka Prefectural Medical Center for Respiratory and Allergic Diseases
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Sato N, Ota M, Yagishita A, Miki Y, Takahashi T, Adachi Y, Nakata Y, Sugai K, Sasaki M. Aberrant midsagittal fiber tracts in patients with hemimegalencephaly. AJNR Am J Neuroradiol 2008; 29:823-7. [PMID: 18238845 DOI: 10.3174/ajnr.a0919] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [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: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE In hemimegalencephaly, MR imaging often reveals midsagittal bandlike structures between the 2 lateral ventricles. To determine whether these structures are aberrant midsagittal fibers, we retrospectively reviewed them on conventional MR imaging and prospectively examined them by diffusion tensor MR and fiber tract (FT) reconstruction imaging. MATERIALS AND METHODS We retrospectively reviewed conventional MR images of 26 consecutive patients with hemimegalencephaly by 2 neuroradiologists, focusing on abnormal midsagittal structures. The distance between the 2 anterior horns and widths of midsagittal bandlike structures were measured. Prospective analysis was performed in 7 consecutive patients with hemimegalencephaly examined for midsagittal aberrant fibers by diffusion tensor imaging, and cortical distribution areas of the fibers were observed. RESULTS The distance between the 2 anterior horns was wide (>4 mm) due to white matter-intensity structures in 20 of 26 patients (76.9%). Mid-sagittal bandlike structures were observed in 15 patients (57.7%). Asymmetry of the fornices was detected in 7 patients (26.9%), and both fornices were thickened in 7 (26.9%) patients. On FT reconstruction, images showed that 4 of 7 patients with hemimegalencephaly had aberrant midsagittal fibers connecting frontal, occipital, or parietal lobes, bilaterally (n = 3) or ipsilaterally (n = 1). All 4 patients had increased width between the 2 anterior horns, and 3 of them exhibited midsagittal bandlike structures on conventional MR imaging. On the other hand, these MR imaging findings were not noted in 3 patients who did not have aberrant midsagittal fibers on diffusion tensor imaging. CONCLUSIONS Aberrant midsagittal FTs running intra- or interhemispherically do not infrequently exist in patients with hemimegalencephaly.
Collapse
Affiliation(s)
- N Sato
- Department of Radiology, Musashi Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|