1
|
Sogabe M, Okahisa T, Kagawa M, Kashihara T, Fujmoto S, Kawaguchi T, Yokoyama R, Kagemoto K, Tanaka H, Kida Y, Tomonari T, Kawano Y, Sato Y, Nakasono M, Takayama T. Impact of alcohol consumption on metabolic dysfunction-associated fatty liver disease development and remission: A longitudinal cohort study. Eur J Clin Invest 2024:e14221. [PMID: 38634705 DOI: 10.1111/eci.14221] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND The influence of alcohol intake on metabolic dysfunction-associated fatty liver disease (MAFLD) development and remission remains unclear; thus, we aimed to investigate their longitudinal associations. METHODS This observational cohort study included 6349 patients who underwent more than two health check-ups over >2 years between April 2013 and March 2021. Generalized estimation equations were used to analyse the longitudinal associations between changes in alcohol intake and MAFLD according to repeated measures at baseline and the most recent stage. RESULTS The MAFLD development and remission rates were 20.4 and 5.1 and 9.1 and 4.7% in men and women, respectively. Although alcohol consumption was not a significant factor for MAFLD development, consuming 0.1-69.9 g/week (odds ratio [OR]: 0.672, 95% confidence interval [CI]: 0.469-0.964, p < .05) and ≥280 g/week were significant factors for MAFLD development in males (OR: 1.796, 95% CI: 1.009-3.196, p < .05) and females (OR: 16.74, 95% CI: 3.877-72.24, p < .001). Regardless of quantity and frequency, alcohol consumption was not a significant factor for MAFLD remission. Several noninvasive liver fibrosis scores were significantly associated with alcohol intake quantity and frequency in males with MAFLD development and remission (p < .05). The nonalcoholic fatty liver disease fibrosis score differed significantly between males with and without reduced alcohol intake (p < .05) who showed MAFLD remission. CONCLUSIONS Although the influence of alcohol intake on MAFLD development and remission differed, alcohol consumption was not beneficial for MAFLD remission in either sex. Alcohol intake reduction or cessation is recommended to prevent liver fibrosis, even in those who achieve MAFLD remission.
Collapse
Affiliation(s)
- Masahiro Sogabe
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo City, Ehime, Japan
| | - Toshiya Okahisa
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo City, Ehime, Japan
| | - Miwako Kagawa
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo City, Ehime, Japan
| | - Takanori Kashihara
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
- Department of Internal Medicine, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo City, Ehime, Japan
| | - Shota Fujmoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| | - Tomoyuki Kawaguchi
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| | - Reiko Yokoyama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| | - Kaizo Kagemoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| | - Hironori Tanaka
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| | - Yoshifumi Kida
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| | - Tetsu Tomonari
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| | - Yutaka Kawano
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| | - Yasushi Sato
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| | - Masahiko Nakasono
- Department of Internal Medicine, Tsurugi Municipal Handa Hospital, Tsurugi, Tokushima, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima City, Tokushima, Japan
| |
Collapse
|
2
|
Mikuni H, Watanabe G, Kumagai S, Yamamoto S, Sawada R, Yokoyama K, Honma Y, Sekine S, Kashihara T, Ishiyama K, Oguma J, Igaki H, Saruta M, Daiko H, Koyama S, Nishikawa H, Kato K. 1240P Activation status of CD8+ T and Treg cells in the tumor microenvironment potentially predicts the clinical efficacy of nivolumab in advanced esophageal squamous cell carcinoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1358] [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: 11/28/2022] Open
|
3
|
Kashihara T, Muguruma N, Fujimoto S, Miyamoto Y, Sato Y, Takayama T. Recent Advances in Molecular Imaging of Colorectal Tumors. Digestion 2021; 102:57-64. [PMID: 33271567 DOI: 10.1159/000512168] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/08/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND Recent endoscopic studies have revealed that small colorectal tumors are often overlooked during colonoscopy, indicating that more sensitive detection methods are needed. SUMMARY Molecular imaging has received considerable attention as a new endoscopic technique with high sensitivity. It generally employs a fluorescence-labeled compound that specifically binds to a molecule on the tumor. Fluorescent probes for molecular imaging are largely classified as 2 types: a fluorescence-labeled antibody targeting a molecule specifically expressed on the tumor cell surface such as epidermal growth factor receptor or vascular endothelial growth factor (VEGF); and a fluorescence-labeled small molecule compound targeting a molecule specifically expressed in tumor cells including c-Met, glutathione S-transferase, γ-glutamyltranspeptidase, cathepsin, or endothelin A receptor. These probes successfully detected colorectal tumors in several animal studies. Moreover, 3 recent human clinical trials evaluating endoscopic molecular imaging for colorectal tumors have been reported. In one study, a Cy5-labeled synthetic peptide against c-Met was developed, and fluorescent endoscopic observation with this probe detected a greater number of colorectal adenomas than with white light observation. Another trial used IR800-labeled anti-VEGF antibody, which sensitively detected human colorectal adenomas by fluorescent endoscopy. Last, a fluorescent probe with synthetic peptide against BRAF-positive cells was able to visualize sessile serrated lesions. The fluorescent probes accumulated at very high levels in colorectal tumor cells but at lower levels in surrounding nonneoplastic mucosa. Key Messages: We expect that molecular imaging techniques with fluorescent probes will soon lead to the establishment of a highly sensitive endoscopic method for colorectal tumor detection.
Collapse
Affiliation(s)
- Takanori Kashihara
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Naoki Muguruma
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Shota Fujimoto
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yoshihiko Miyamoto
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yasushi Sato
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan,
| |
Collapse
|
4
|
Fujimoto S, Muguruma N, Nakao M, Ando H, Kashihara T, Miyamoto Y, Okamoto K, Sano S, Ishida T, Sato Y, Takayama T. Indocyanine green-labeled dasatinib as a new fluorescent probe for molecular imaging of gastrointestinal stromal tumors. J Gastroenterol Hepatol 2021; 36:1253-1262. [PMID: 32989784 DOI: 10.1111/jgh.15281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 08/16/2020] [Accepted: 09/21/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIM It is difficult to differentiate gastrointestinal stromal tumors (GISTs) from other subepithelial lesions under gastrointestinal endoscopy. Because most GISTs express tyrosine kinase receptor c-KIT, fluorescence-labeled c-KIT-specific tyrosine kinase inhibitors seem to be useful agents for molecular imaging of GIST. We aimed to develop a near-infrared fluorescent imaging technology for GIST targeting c-KIT using the novel fluorescent probe indocyanine green-labeled dasatinib (ICG-dasatinib) and to investigate the antitumor effect of ICG-dasatinib on GIST cells. METHODS Indocyanine green-labeled dasatinib was synthesized by labeling linker-induced dasatinib with ICG derivative 3-indocyanine-green-acyl-1,3-thiazolidine-2-thione. Human GIST cell lines GIST-T1 and GIST-882M were incubated with ICG-dasatinib and observed by fluorescent microscopy. GIST cells were incubated with ICG-dasatinib, unlabeled dasatinib, or imatinib, and cell viabilities were evaluated. Subcutaneous GIST model mice or orthotopic GIST model rats were intravenously injected with ICG-dasatinib and observed using an IVIS Spectrum. RESULTS Strong fluorescent signals of ICG-dasatinib were observed in both GIST cell lines in vitro. IC50 values for ICG-dasatinib, unlabeled dasatinib, and imatinib were 13.9, 1.17, and 16.2 nM in GIST-T1 and 26.6, 3.63, and 47.6 nM in GIST-882M cells, respectively. ICG-dasatinib accumulated in subcutaneous xenografts in mice. Fluorescent signals were also observed in liver and gallbladder, indicating biliary excretion; however, fluorescence intensity of tumors was significantly higher than that of intestine after washing. Strong fluorescent signals were observed in orthotopic xenografts through the covering normal mucosa in rats. CONCLUSIONS Indocyanine green-labeled dasatinib could visualize GIST cells and xenografted tumors. The antitumor effect of ICG-dasatinib was preserved to the same degree as imatinib.
Collapse
Affiliation(s)
- Shota Fujimoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Naoki Muguruma
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Michiyasu Nakao
- Department of Molecular Medicinal Chemistry, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Hidenori Ando
- Department of Pharmacokinetics and Biopharmaceutics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Takanori Kashihara
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yoshihiko Miyamoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Koichi Okamoto
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Shigeki Sano
- Department of Molecular Medicinal Chemistry, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Tatsuhiro Ishida
- Department of Pharmacokinetics and Biopharmaceutics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yasushi Sato
- Department of Community Medicine for Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| |
Collapse
|
5
|
Inaba K, Okuma K, Murakami N, Kashihara T, Okamoto H, Nakamura S, Nishioka S, Takahashi A, Takahashi K, Igaki H, Nakayama Y, Itami J. The Treatment Results of Reduced Dose Radiotherapy For Gastric MALT Lymphoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
6
|
Kashihara T, Inaba K, Okuma K, Takahashi K, Murakami N, Igaki H, Nakayama Y, Itami J. Comparative Analysis of Esophageal Stenosis After Irradiation for T1N0M0 Esophageal Cancer Using Inverse Probability Weighting Between Prophylactic Irradiation After Endoscopic Treatment and Definitive Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1935] [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: 11/28/2022]
|
7
|
Inazumi H, Kuwahara K, Kuwabara Y, Nakagawa Y, Kinoshita H, Moriuchi K, Yanagisawa H, Nishikimi T, Oya M, Yamada M, Kashihara T, Kurebayashi N, Sugihara M, Nakao K, Kimura T. NRSF-GNAO1-CaMK2 axis exacerbates cardiac remodeling and progresses heart failure by impairing Ca2+ homeostasis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
In the development of heart failure, pathological intracellular signaling reactivates fetal cardiac genes, which leads to maladaptive remodeling and cardiac dysfunction. We previously reported that a transcriptional repressor, neuron restrictive silencer factor (NRSF) represses fetal cardiac genes and maintains normal cardiac function under normal conditions, while hypertrophic stimuli de-repress this NRSF mediated repression via activation of CaMKII. Molecular mechanisms by which NRSF maintains cardiac systolic function remains to be determined, however.
Purpose
To elucidate how NRSF maintains normal cardiac homeostasis and identify the novel therapeutic targets for heart failure.
Methods and results
We generated cardiac-specific NRSF knockout mice (NRSF cKO), and found that these NRSF cKO showed cardiac dysfunction and premature deaths accompanied with lethal arrhythmias, as was observed in our previously reported cardiac-specific dominant-negative mutant of NRSF transgenic mice (dnNRSF-Tg).
By cDNA microarray analysis of dnNRSF-Tg and NRSF-cKO, we identified that expression of Gnao1 gene encoding Gαo, a member of inhibitory G proteins, was commonly increased in ventricles of both types of mice.
ChIP-seq analysis, reporter assay and electrophoretic mobility shift assay identified that NRSF transcriptionally regulates Gnao1 gene expression.
Genetic Knockdown of Gαo in dnNRSF-Tg and NRSF-cKO by crossing these mice with Gnao1 knockout mice ameliorated the reduced systolic function, increased arrhythmogenicity and reduced survival rates.
Transgenic mice expressing a human GNAO1 in their hearts (GNAO1-Tg) showed progressive cardiac dysfunction with cardiac dilation. Ventricles obtained from GNAO1-Tg have increased phosphorylation level of CaMKII and increased expression level of endogenous mouse Gnao1 gene. These data suggest that increased cardiac expression of Gαo is sufficient to induce pathological Ca2+-dependent signaling and cardiac dysfunction, and that Gαo forms a positive regulatory circuit with CaMKII and NRSF.
Electrophysiological analysis in ventricular myocytes of dnNRSF-Tg revealed that impaired Ca2+ handling via alterations in localized L-type calcium channel (LTCC) activities; decreased T-tubular and increased surface sarcolemmal LTCC activities, underlies Gαo-mediated cardiac dysfunction.
Furthermore, we also identified increased expression of Gαo in ventricles of two different heart failure mice models, mice with transverse aortic constriction and mice carrying a mutant cardiac troponin T, and confirmed that genetic reduction of Gαo prevented the progression of cardiac dysfunction in both types of mice.
Conclusions
Increased expression of Gαo, induced by attenuation of NRSF-mediated repression forms a pathological circuit via activation of CaMKII. This circuit exacerbates cardiac remodeling and progresses heart failure by impairing Ca2+ homeostasis. Gαo is a potential therapeutic target for heart failure.
Figure 1
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Grants-in –Aid for Scientific Research from the Japan Society for the Promotion of Science
Collapse
Affiliation(s)
- H Inazumi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kuwahara
- Shinsyu University School of Medicine, matsumoto, Japan
| | - Y Kuwabara
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Y Nakagawa
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Kinoshita
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Moriuchi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Yanagisawa
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Nishikimi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Oya
- Shinsyu University School of Medicine, matsumoto, Japan
| | - M Yamada
- Shinsyu University School of Medicine, matsumoto, Japan
| | - T Kashihara
- Shinsyu University School of Medicine, matsumoto, Japan
| | - N Kurebayashi
- Juntendo University Graduate School of Medicine, tokyo, Japan
| | - M Sugihara
- Juntendo University Graduate School of Medicine, tokyo, Japan
| | - K Nakao
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Kimura
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| |
Collapse
|
8
|
Okuma K, Igaki H, Okamoto H, Nishioka S, Iijima K, Kashihara T, Takahashi K, Murakami N, Nakayama Y, Itami J. SP-008: Clinical experiences and Dosimetry of MR guided X-ray Therapy (MRXT). Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(20)30560-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
9
|
Inazumi H, Kuwahara K, Kuwabara Y, Nakagawa Y, Kinoshita H, Moriuchi K, Yanagisawa H, Nishikimi T, Oya M, Yamada M, Kashihara T, Kurebayashi N, Sugihara M, Nakao K, Kimura T. 4968Increased Gao expression underlies cardiac dysfunction and lethal arrhythmias accompanied with abnormal Ca2+ handling. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
We previously demonstrated that a transcriptional repressor, neuron restrictive silencer factor (NRSF), maintains normal cardiac function and electrical stability. Transgenic mice expressing a dominant-negative mutant of NRSF in their hearts (dnNRSF-Tg) exhibit systolic dysfunction with cardiac dilation and premature death due to lethal arrhythmias like human dilated cardiomyopathy (DCM). Underlining mechanisms remain to be elucidated, however.
Purpose
We studied underling mechanisms by which NRSF maintains normal cardiac function to identify novel therapeutic targets for heart failure.
Methods and results
We generated cardiac-specific NRSF knockout mice (NRSFcKO) and confirmed that cardiac phenotypes of NRSFcKO are similar to those of dnNRSF-Tg.
cDNA microarray analysis revealed that cardiac gene expression of GNAO1 that encodes Gαo, a member of inhibitory G protein Gαi family, is increased in both dnNRSF-Tg and NRSFcKO ventricles.
We confirmed that GNAO1 is a direct target of NRSF through ChIP-seq analysis, reporter assay and electrophoretic mobility shift assay.
In dnNRSF-Tg, pharmacological inhibition of Gαo with pertussis toxin improved systolic dysfunction and knockdown of Gαo by crossing with GNAO1 knockout mice improved not only systolic function but also frequency of ventricular arrhythmias and survival rates.
Electrophysiological and biochemical analysis in ventricular myocytes obtained from dnNRSF-Tg demonstrated that genetic reduction of Gαo ameliorated abnormalities in Ca2+ handling, which include increased current density in surface sarcolemmal L-type Ca2+ channel, reduced content of sarcoplasmic reticulum Ca2+ and lowered peak of Ca2+ transient. Furthermore, genetic reduction of Gαo attenuated increased phosphorylation levels of CAMKII in dnNRSF-Tg ventricles, which presumably underlies the improvement in Ca2+ handling. In addition, we identified increased Gαo expression in ventricles of heart failure model mice induced by transverse aortic constriction and cardiac troponin T mutant DCM model mice, in both of which, genetic reduction of Gαo ameliorated cardiac dysfunction.
Figure 1
Conclusions
We found that increased expression of Gαo, induced by attenuation of NRSF-mediated repression, plays a crucial role in the progression of cardiac dysfunction and lethal arrhythmias by evoking Ca2+ handling abnormality. These data demonstrate that Gαo is a potential therapeutic target for heart failure.
Collapse
Affiliation(s)
- H Inazumi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kuwahara
- Shinsyu University School of Medicine, matsumoto, Japan
| | | | - Y Nakagawa
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Kinoshita
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Moriuchi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Yanagisawa
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Nishikimi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Oya
- Shinsyu University School of Medicine, matsumoto, Japan
| | - M Yamada
- Shinsyu University School of Medicine, matsumoto, Japan
| | - T Kashihara
- Shinsyu University School of Medicine, matsumoto, Japan
| | - N Kurebayashi
- Juntendo University Graduate School of Medicine, tokyo, Japan
| | - M Sugihara
- Juntendo University Graduate School of Medicine, tokyo, Japan
| | - K Nakao
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Kimura
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| |
Collapse
|
10
|
Okuma K, Okamoto H, Iijima K, Nishioka F, Kashihara T, Shima S, Uematsu M, Igaki H, Nakayama Y, Itami J, Murakami N, Nakamura S. EP-1403 Retrospective evaluation of usefulness of MR-guided adaptive radiotherapy of gastric MALT lymphoma. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31823-7] [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: 11/30/2022]
|
11
|
Sekii S, Murakami N, Nakamura S, Kashihara T, Kobayashi K, Harada K, Kitaguchi M, Takahashi K, Inaba K, Igaki H, Ito Y, Itami J. Supplementary Bladder Reference Point of High-Dose-Rate Intracavitary Brachytherapy for Cervical Cancer: Feedback 3-Dimension to 2-Dimension. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
12
|
Ito Y, Murakami N, Inaba K, Takahashi K, Umezawa R, Igaki H, Sekii S, Harada K, Kitaguchi M, Kobayashi K, Kashihara T, Yoshimoto S, Itami J. Treatment Outcomes of Intensity Modulated Radiation Therapy for Clinical Stage I/II Hypopharyngeal Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
13
|
Akiyama K, Tanigawa F, Kashihara T, Hayashi H. Lupin pyranoisoflavones inhibiting hyphal development in arbuscular mycorrhizal fungi. Phytochemistry 2010; 71:1865-1871. [PMID: 20813384 DOI: 10.1016/j.phytochem.2010.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Revised: 06/11/2010] [Accepted: 08/06/2010] [Indexed: 05/29/2023]
Abstract
White lupin (Lupinus albus L.), a non-host plant for arbuscular mycorrhizal (AM) fungi in the typically mycotrophic family Fabaceae, has been investigated for root metabolites that inhibit hyphal development in AM fungi. Four known pyranoisoflavones, licoisoflavone B (1), sophoraisoflavone A (2), alpinumisoflavone (3) and 3'-hydroxy-4'-O-methylalpinumisoflavone (4), together with three previously unknown pyranoisoflavones, lupindipyranoisoflavone A (5), 10'-hydroxylicoisoflavone B (6) and 10'-hydroxysophoraisoflavone A (7) were isolated from the root exudates of white lupin as an inhibitor of germ tube growth in the AM fungus Gigaspora margarita. Pyranoisoflavones 1, 2 and 3 strongly inhibited germ tube growth at 0.63, 1.25 and 0.63 μg/disc, respectively. The remaining compounds 4-7 were either moderate or weak inhibitors that inhibited germ tube growth at concentrations higher than 10 μg/disc. Licoisoflavone B (1) and sophoraisoflavone A (2) completely inhibited hyphal branching induced by a lupin strigolactone, orobanchyl acetate, in G. margarita at 0.16 and 0.63 μg/disc, respectively.
Collapse
Affiliation(s)
- Kohki Akiyama
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan.
| | | | | | | |
Collapse
|
14
|
Hashizume H, Sato K, Takagi H, Kanda D, Kashihara T, Kiso S, Mori M. Werner syndrome as a possible cause of non-alcoholic steatohepatitis. J Clin Pathol 2009; 62:1043-5. [PMID: 19720629 DOI: 10.1136/jcp.2009.070680] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Non-alcoholic steatohepatitis (NASH) is characterised by steatosis, liver cell injuries, the presence of a mixed inflammatory lobular infiltrate, and variable degrees of fibrosis. Werner syndrome (WS) is a rare autosomal recessive disease characterised by the premature onset of multiple age-related disorders. Central obesity and insulin resistance are common symptoms of both NASH and WS. Three cases were studied to evaluate the association between WS and NASH. NASH was diagnosed by liver biopsies and imaging studies following the exclusion of alcohol consumption, viral disease or autoimmune liver disease. Liver histology was compatible with NASH in all cases. Liver dysfunction, hyperlipidaemia, insulin resistance and regional increase of intra-abdominal fat even though the body mass indices were all normal or low, were observed. Metabolic disorders due to WS may complicate and cause NASH. Hence, the observed clinical association between WS and NASH suggests that patients with WS should also be screened for NASH.
Collapse
Affiliation(s)
- H Hashizume
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Japan
| | | | | | | | | | | | | |
Collapse
|
15
|
Koike M, Kondo Y, Kita K, Takegawa N, Nishi N, Kashihara T, Kawakami S, Kudoh S, Blake D, Shirai T, Liley B, Ko M, Miyazaki Y, Kawasaki Z, Ogawa T. Measurements of reactive nitrogen produced by tropical thunderstorms during BIBLE-C. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008193] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
16
|
Asakawa H, Kashihara T, Fukuda H, Yamamoto M. A patient with thymoma and four different organ-specific autoimmune diseases. Neth J Med 2002; 60:292-5. [PMID: 12430577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
This is the first report of a patient with four organ-specific autoimmune diseases; myasthenia gravis, type 1 diabetes mellitus, autoimmune hepatitis and Hashimoto's thyroiditis. The clinical history suggests a relationship with a non-removed thymoma. Not only the thymoma seems to have triggered these four diseases, the dramatic progressive course with an active autoimmune hepatitis and high concentrations of multiple autoantibodies was probably also associated with non-removal of the thymoma. Thymectomy should be performed in myasthenia gravis patients with thymoma and associated autoimmune diseases.
Collapse
Affiliation(s)
- H Asakawa
- Suita Municipal Hospital, Department of Internal Medicine Osaka, Japan.
| | | | | | | |
Collapse
|
17
|
Asakawa H, Tsuji M, Tokumine Y, Kashihara T, Okuno M, Takenaka R, Kawakami F. Gastric T-cell lymphoma presenting with epithelioid granulomas mimicking tuberculosis in regional lymph nodes. J Gastroenterol 2001; 36:190-4. [PMID: 11291883 DOI: 10.1007/s005350170128] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In patients with malignant lymphomas, a sarcoid reaction is occasionally observed. However, lymphoma-related granulomas with caseous necrosis are rare. We describe such a case of T-cell gastric lymphoma that was difficult to diagnose. A 50-year-old man was referred to our hospital because of abnormal gastric endoscopic findings: hypertrophic folds with narrowing of the gastric lumen and multiple ulcers in the body. Gastric biopsy specimens showed non-specific inflammation. An open biopsy of the enlarged gastric regional lymph nodes was performed. The sections revealed effacement of the normal architecture and replacement by numerous epithelioid granulomas accompanied by Langhan's type giant cells with or without central caseous necrosis, strongly suggesting tuberculosis. However, mycobacteria and other causative organisms were not detected, and an anti-tuberculous regimen was ineffective. Repeat gastric biopsies were performed and, finally, atypical lymphocytes were observed infiltrating the mucosa. The patient was diagnosed with gastric T-cell lymphoma based on the results of immunohistochemical stainings. After chemotherapy, a total gastrectomy was performed. The diagnosis of gastric T-cell lymphoma with a sarcoid reaction was confirmed by histological findings of the sections. Namely, the gastric wall was replaced by atypical lymphocytes showing the phenotype of helper T cells, admixed with epithelioid granulomas with Langhan's type giant cells. Thus, this case suggests that regional lymph nodes in gastric lymphomas may be present as epithelioid granulomas with caseous necrosis, mimicking tuberculosis.
Collapse
MESH Headings
- Antitubercular Agents/therapeutic use
- Biopsy
- Chemotherapy, Adjuvant
- Combined Modality Therapy/methods
- Diagnosis, Differential
- Gastrectomy
- Giant Cells, Langhans
- Granuloma, Giant Cell/etiology
- Granuloma, Giant Cell/pathology
- Humans
- Lymphoma, T-Cell/complications
- Lymphoma, T-Cell/diagnosis
- Lymphoma, T-Cell/therapy
- Male
- Middle Aged
- Stomach Neoplasms/complications
- Stomach Neoplasms/diagnosis
- Stomach Neoplasms/therapy
- Tuberculosis, Lymph Node/diagnosis
- Tuberculosis, Lymph Node/drug therapy
Collapse
Affiliation(s)
- H Asakawa
- Department of Internal Medicine, Itami City Hospital, Itami, Japan
| | | | | | | | | | | | | |
Collapse
|
18
|
Sawada-Hase N, Kiyohara T, Miyagawa J, Ueyama H, Nishibayashi H, Murayama Y, Kashihara T, Nakahara M, Miyazaki Y, Kanayama S, Nezu R, Shinomura Y, Matsuzawa Y. An increased number of CD40-high monocytes in patients with Crohn's disease. Am J Gastroenterol 2000; 95:1516-23. [PMID: 10894589 DOI: 10.1111/j.1572-0241.2000.01938.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE CD40-CD40 ligand (CD40L) interaction is essential for the T-lymphocyte-dependent immune response. This interaction may be operational in the pathogenesis of inflammatory bowel diseases (IBD). The present study examined the expression of CD40 in peripheral blood mononuclear cells (PBMNCs) and tissue specimens, and CD40-stimulated interleukin (IL)-12 release from PBMNCs in IBD. METHODS The expression of CD40 in PBMNCs and tissue inflammatory cells was examined by flowcytometry and immunohistochemistry, respectively. IL-12 release was measured in cultured media of PBMNCs by an enzyme-linked immunosorbent assay. RESULTS Most peripheral blood B-lymphocytes expressed CD40 in all subjects. However, in ulcerative colitis (UC) patients, a significantly increased mean fluorescence intensity (MFI) of CD40 on B-lymphocytes was detected, compared with control subjects and patients with Crohn's disease (CD). In contrast, both the percentage positivity and MFI of CD40 on monocytes of active CD subjects were significantly increased, compared with the other groups. In active CD patients, a high level of IL-12 release from PBMNCs was observed by CD40 stimulation, compared with those of the other groups. When primed with IFN-gamma, PBMNCs from inactive CD patients released a significantly high level of IL-12, probably via stimulation by the CD40 monoclonal antibody. In the affected mucosa of CD, numerous CD40-positive cells were demonstrated, and they were also CD68-positive, suggesting these double CD40/ CD68-positive cells are tissue macrophages. CONCLUSIONS These results suggest that the examination of CD40 expression in PBMNCs might enable the differentiation of CD from UC. CD40-high monocytes in CD patients may play a role in the pathogenesis of CD.
Collapse
Affiliation(s)
- N Sawada-Hase
- Department of Internal Medicine and Molecular Science, Graduate School of Medicine, Osaka University, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Fukuzaki T, Kawata S, Imai Y, Tamura S, Inada M, Maeda H, Shirai Y, Maeda Y, Yabuuchi I, Kiriyama K, Himeno S, Toyoshima H, Nishikawa M, Kashihara T, Minami Y, Nishiuchi M, Seki K, Matsuzawa Y. Changes in serum hepatic fibrosis markers in biochemical responders to interferon therapy for chronic hepatitis C. Hepatol Res 2000; 17:156-166. [PMID: 10707009 DOI: 10.1016/s1386-6346(99)00073-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Serum hepatic fibrosis markers (7s domain of type IV collagen, N-terminal peptide of type III procollagen, and hyaluronate) were determined during and after a 6-month interferon treatment of patients with chronic hepatitis C. Changes in these markers were compared among the patients who showed a sustained normalization of serum alanine transaminase (ALT) levels with and without eradication of serum hepatitis C virus RNA (complete responders and biochemical responders) and nonresponders. In the case of complete responders, the serum 7s domain of type IV collagen and the N-terminal peptide of type III procollagen levels decreased at the end and 24 weeks after the end of the treatment. Hyaluronate levels were significantly decreased 24 weeks after the end of the treatment, as compared with those prior to the treatment. During and after interferon treatment, changes in these markers in the case of biochemical responders were nearly the same as those in the complete responders. These results suggest that serum hepatic fibrosis markers decrease in patients with chronic hepatitis C who show a sustained normalization of ALT after interferon treatment, even if serum hepatitis C virus RNA fails to be eradicated.
Collapse
Affiliation(s)
- T Fukuzaki
- Department of Internal Medicine and Molecular Science, Osaka University Medical School, 2-2 Yamadaoka, Suita, Osaka, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Abstract
We describe an autopsy case of primary hepatic leiomyosarcoma in a 68-year-old man with hepatitis C virus-related liver cirrhosis. The patient, who had a history of acute hepatitis 20 years previously, died of a ruptured hepatic tumor. At autopsy, a well-circumscribed 14 x 16 x 15 cm tumor replaced the medial site of the right hepatic lobe with multiple intrahepatic and distant metastases. Histologically the tumor, which had extensive central necrosis, consisted predominantly of well or moderately differentiated spindle-shaped cells, which were positive for smooth muscle actin and vimentin on immunohistochemical staining. In addition, clusters of markedly atypical cells and myxoid change of the matrix were discretely found in the focal and small areas of the tumor. These findings indicated that many sections were necessary for the histologically accurate estimation of primary hepatic smooth muscle tumor. The histological examination of a non-tumorous lesion showed liver cirrhosis. Hepatitis C virus was detected in the cytoplasm of cirrhotic hepatocytes by immunohistochemistry and reverse transcriptase-polymerase chain reaction, but not in the tumor cells. This suggested that the virus was not directly involved in the development of primary hepatic leiomyosarcoma.
Collapse
Affiliation(s)
- M Tsuji
- Division of Pathology, Department of Laboratory Medicine, Osaka Medical College Hospital, Takatsuki, Osaka, Japan.
| | | | | | | | | | | |
Collapse
|
21
|
Tsuji M, Kashihara T, Terada N, Mori H. An immunohistochemical study of hepatic atypical adenomatous hyperplasia, hepatocellular carcinoma, and cholangiocarcinoma with alpha-fetoprotein, carcinoembryonic antigen, CA19-9, epithelial membrane antigen, and cytokeratins 18 and 19. Pathol Int 1999; 49:310-7. [PMID: 10365850 DOI: 10.1046/j.1440-1827.1999.00865.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Eight hepatic atypical adenomatous hyperplasias (AH), 30 hepatocellular carcinomas (HCC) consisting of 11 well-, 13 moderately and six poorly differentiated HCC, and 10 intrahepatic cholangiocarcinomas (CC) were investigated immunohistochemically with anti-alpha-fetoprotein (AFP), carcinoembryonic antigen (CEA), CA19-9, epithelial membrane antigen (EMA), and cytokeratins (CK) 18 and 19 antibodies. Immunostaining was regarded as positive when more than 5% of cells were stained. Alpha-fetoprotein was positive, although focally, in five (17%) of 30 HCC but negative in all AH and CC. Carcinoembryonic antigen (polyclonal antibody) did not stain the cytoplasm of all AH and HCC, but stained two (25%) of eight AH and 10 (33%) of 30 HCC in a bile canalicular staining manner. Carcinoembryonic antigen showed intracytoplasmic or luminal border staining in six (60%) of 10 CC. CA19-9 was negative in all AH and HCC, while six (60%) of 10 CC were positive for CA19-9. Epithelial membrane antigen was positive in one (13%) of eight AH, seven (23%) of 30 HCC and in all 10 cases of CC. Cytokeratin 18 was positive in all AH, HCC and CC. Cytokeratin 19 was negative in both AH and HCC, whereas it stained the cytoplasm of tumor cells in all CC diffusely and intensely. These results suggest that immunostaining of AFP, CEA, CA19-9, EMA, CK18 and CK19 are not useful in the differential diagnosis between AH and well-differentiated HCC, and that CK19 is the most suitable reagent for the differential diagnosis between HCC and CC.
Collapse
Affiliation(s)
- M Tsuji
- Department of Pathology, Itami City Hospital, Itami, Hyogo, Japan
| | | | | | | |
Collapse
|
22
|
Kashihara T, Ohki A, Kobayashi T, Sato T, Nishizawa H, Ogawa K, Tako H, Kawakami F, Tsuji M, Tamaoka K. Intrahepatic cholangiocarcinoma with increased serum CYFRA 21-1 level. J Gastroenterol 1998; 33:447-53. [PMID: 9658330 DOI: 10.1007/s005350050112] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
CYFRA 21-1 is a fragment of cytokeratin 19 (CK 19). Four patients with large intrahepatic (or peripheral) cholangiocarcinoma (CC) and high serum levels of CYFRA 21-1 (normal, < or = 2 ng/ml) are reported. CYFRA 21-1 levels exceeded 9 ng/ml in all 4 patients. Carcinoembryonic antigen (CEA), was high in 1 (CEA; normal range, < or = 5.0 ng/ml) and carbohydrate antigen 19-9 (CA 19-9) was high in 3 (CA19-9; normal range, < or = 36 U/ml). We also measured serum levels of CYFRA 21-1 in 13 patients with hepatocellular carcinoma (HCC) more than 5 cm in diameter. Levels of CYFRA 21-1 exceeded 2 ng/ml in 9 of the HCC patients and were higher than 9 ng/ml in 2 of the HCC patients. Levels of alpha fetoprotein (AFP) and/or protein induced by vitamin K absence or antagonist II (PIVKA II) were elevated in all HCC patients (AFP, PIVKA II, respectively; normal range, < or = 10.0 ng/ml and < or = 0.1 AU/ml) CYFRA 21-1 levels were measured twice or three times during the clinical course in 2 CC patients and in 6 HCC patients, and increased gradually with tumor growth in the 2 CC patients and in 3 of the 6 HCC patients. Marked increases in serum CYFRA 21-1 levels in patients with large liver cancers, particularly in those with normal levels of AFP and PIVKA II, would suggest the existence of intrahepatic CC rather than HCC.
Collapse
Affiliation(s)
- T Kashihara
- Department of Internal Medicine, Itami City Hospital, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Imai Y, Kawata S, Tamura S, Ito N, Seki K, Nishiuchi M, Shinji Y, Kiriyama K, Himeno S, Minami Y, Kashihara T, Kawakami F, Maeda H, Yabuuchi I, Nishioka M, Shirai Y, Fukuda K, Kiso S, Ito T, Igura T, Doi Y, Matsuzawa Y. Recombinant interferon-alpha-2a for treatment of chronic hepatitis C: results of a multicenter randomized controlled dose study. Liver 1997; 17:88-92. [PMID: 9138278 DOI: 10.1111/j.1600-0676.1997.tb00786.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
To compare the efficacy of low and relatively high dosages of recombinant interferon (IFN)-alpha-2a in Japanese patients with chronic hepatitis C, as well as to characterize the type of patients who will respond well to a low-dosage treatment, 88 patients with histologically proven chronic hepatitis C were randomly assigned to two treatment groups; one treated with IFN-alpha-2a 6 MU daily for 2 weeks followed by 6 MU three times weekly for 22 weeks (6-MU group), and another given the same initial treatment followed by 3 MU three times weekly for 22 weeks (3-MU group). The rate of sustained normalization of ALT 6 months after the cessation of treatment was 33% in the 3-MU group and 40% in the 6-MU group (p = 0.64). In addition, there was no difference in elimination of serum HCV-RNA 6 months after the cessation of treatment between the 3-MU group (26%) and 6-MU group (29%). Multivariate stepwise regression analysis revealed that serum HCV-RNA level (p = 0.0035) and platelet count (p = 0.0009) were independent variables useful in predicting a sustained response of ALT. The sustained response rate of ALT in patients with a serum HCV-RNA level less than 10(5) copies/ml and serum platelet level above 15 x 10(4)/microliter was 71%, whereas that in patients with a serum HCV-RNA level above 10(5) copies/ml and serum platelet level less than 15 x 10(4)/microliter was 12%. These results indicate that a high rate of sustained response to IFN therapy can be expected in chronic hepatitis C patients with a low serum level of HCV-RNA and a high level of platelets, even if treated with a low dose of IFN.
Collapse
Affiliation(s)
- Y Imai
- Second Department of Internal Medicine, Osaka University Medical School, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Hase N, Kashihara T, Ohki A, Kawakami F, Okuno G, Yamamoto M, Tsuji M, Hashimoto K, Aoki H. [A case of abdominal bronchogenic cyst which had interesting ultrasonographic finding, and contained fluid with an increase in amylase]. Nihon Shokakibyo Gakkai Zasshi 1996; 93:594-8. [PMID: 8810820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- N Hase
- Second Department of Internal Medecine, Osaka University Medical School
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Kiso S, Kawata S, Kashihara T, Tamura S, Matsuzawa Y. [Hereditary coproporphyria (Hepatic coproporphyria), Erythropoietic coproporphyria]. Nihon Rinsho 1995; 53:1433-7. [PMID: 7616659] [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: 01/26/2023]
Abstract
Hereditary coproporphyria (Hepatic coproporphyria: HCP); HCP is the rarest and least recognized among hepatic porphyrias and is characterised by an excess of faecal and urinary excretion of coproporphyrin (mainly isomer III). The deficiency is in coproporphyrinogen oxidase. HCP was first described by Berger and Goldberg in 1955 and was considered an asymptomatic biochemical abnormality. It later became evident that HCP could provoke acute attacks similar to those of acute intermittent porphyria (AIP) and variegate porphyria (VP). Such episodes are often provoked by barbiturates, sulphonamides and other drugs, and include automatic symptoms (hypertension, tachycardia, abdominal pain, constipation), central (epileptic seizures, mental disturbances) and peripheral nervous system dysfunction. During acute attacks, urinary ALA (delta-aminole-vulinic acid) and PBG (porphobilinogen) are elevated just as in AIP and VP, however, a marked elevation of faecal COPRO (coproporphyrin) is diagnostic of HCP. Laparoscopic finding of our case showed a map-like appearance of the liver surface with slightly depressed dark-bluish areas and reddish-brown areas. The liver biopsy specimen showed red fluorescence under ultraviolet light. On HE staining, hydropic degeneration of the hepatocytes and many brown granules in the hepatocytes were seen. A part of the granules stained positive for iron. Schmorl's stain showed many needle-shaped crystallines. Erythropoietic coproporphyria (ECP); Heilmeyer and Clotten have described that elevated PROTO (protoporphyrin) and COPRO were found in the RBC of the patient. Topi et al. described two brothers with cutaneous photosensitivity similar to that of erythropoietic protoporphyria, but with elevated RBC PROTO and COPRO III in both. Very little is known about this disease.
Collapse
Affiliation(s)
- S Kiso
- Second Department of Internal Medicine, Osaka University Medical School
| | | | | | | | | |
Collapse
|
26
|
Akiyama Y, Nagahara N, Kashihara T, Hirai S, Toguchi H. In vitro and in vivo evaluation of mucoadhesive microspheres prepared for the gastrointestinal tract using polyglycerol esters of fatty acids and a poly(acrylic acid) derivative. Pharm Res 1995; 12:397-405. [PMID: 7617528 DOI: 10.1023/a:1016208703380] [Citation(s) in RCA: 97] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Two types of polyglycerol ester of fatty acid (PGEF)-based microspheres were prepared: Carbopol 934P (CP)-coated microspheres (CPC-microspheres) and CP-dispersion microspheres (CPD-microspheres). Comparative studies on mucoadhesion were done with these microspheres and PGEF-based microspheres without CP (PGEF-microspheres). In an in vitro adhesion test, the CPD-microspheres adhered strongly to mucosa prepared from rat stomach and small intestine because each CP particle in the CPD-microsphere was hydrated and swelled with part of it remaining within the microsphere and part extending to the surface serving to anchor the microsphere to the mucus layer. The gastrointestinal transit patterns after administration of the CPD-microspheres and PGEF-microspheres to fasted rats were fitted to a model in which the microspheres are emptied from the stomach monoexponentially with a lag time and then transit through the small intestine at zero-order. Parameters obtained by curve fitting confirmed that the gastrointestinal transit time of the CPD-microspheres was prolonged compared with that of the PGEF-microspheres. MRT in the gastrointestinal tract was also prolonged after administration of the CPD-microspheres compared with that following the administration of the PGEF-microspheres.
Collapse
Affiliation(s)
- Y Akiyama
- DDS Research Laboratories, Takeda Chemical Industries, Ltd., Japan
| | | | | | | | | |
Collapse
|
27
|
Abstract
A 67-year-old male was admitted with the complaint of weakness at hunger early in the morning, when blood glucose was less than 40 mg/dl. The abdominal ultrasonogram and computerized tomogram demonstrated a huge tumor in the right liver lobe. Hypoglycemia disappeared after transcatheter arterial embolization. Then hepatic lobectomy was performed. The tumor was histologically shown to be a fibrosarcoma. Insulin-like growth factor-II was intensely stained in the Golgi area of the tumor cells, suggesting its role in the mechanism of hypoglycemia.
Collapse
Affiliation(s)
- K Kotani
- Second Department of Internal Medicine, Kobe University
| | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Kashihara T, Fujimori E, Oki A, Itoh T, Hashimoto K, Kotani K, Fukuda H, Tako H, Kawakami F, Okuno G. Protein-losing enteropathy and pancreatic involvement in a case of connective tissue disease. Gastroenterol Jpn 1992; 27:246-51. [PMID: 1577230 DOI: 10.1007/bf02777730] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A patient with connective tissue disease presenting with both protein-losing enteropathy and pancreatic involvement is reported. A 52-year-old female was admitted because of mild epigastralgia, anasarca and ascites. Serum albumin, transferrin and zinc, showed low levels. An Upper G.I. series and endoscopy showed thickened folds of the duodenum and the jejunum. Biopsy specimens revealed lymphangiectasia in edematous villi. 99mTc-labeled human serum albumin scintigram showed abnormal radioactivity in the small intestine 90 minutes after intravenous injection, indicating protein-losing enteropathy. Hypoalbuminemia was ameliorated by glucocorticoid therapy, but recurred twice when glucocorticoid treatment was tapered. Hypoalbuminemia has not occurred since intestinal lymphangiectasia was improved with glucocorticoid treatment. Levels of elastase 1 and lipase were high in serum and ascites on admission. Endoscopic retrograde pancreatogram showed no abnormalities. Serum pancreatic enzymes were also ameliorated by glucocorticoid therapy, but slightly high levels continued for about one year and a half. This case might have been diagnosed as systemic lupus erythematosus although mixed connective tissue disease was also suspected. There are few reports of protein-losing enteropathy and pancreatic involvement associated with connective tissue diseases. Protein-losing enteropathy and pancreatic involvement were ameliorated with glucocorticoid treatment, suggesting participation of immunological mechanisms.
Collapse
Affiliation(s)
- T Kashihara
- Department of Internal medicine, Itami City Hospital, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Hashimoto K, Kashihara T, Kotani K, Fujimori E, Ohki A, Kawakami F, Tako H, Okuno G. [A case of measles associated with severe damage of the liver and kidneys]. Nihon Shokakibyo Gakkai Zasshi 1992; 89:548-51. [PMID: 1569710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- K Hashimoto
- Department of Internal Medicine, Itami City Hospital
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Ogawa R, Tsubakimoto M, Hashimoto H, Nakatsuka H, Kashihara T, Tako H, Nakamura K, Onoyama Y. [A case of portosystemic encephalopathy--percutaneous transhepatic embolization of shunt]. Nihon Shokakibyo Gakkai Zasshi 1991; 88:1504-8. [PMID: 1920910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- R Ogawa
- Department of Radiology, Itami City Hospital
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Hashimoto H, Nakatsuka H, Tsubakimoto M, Ogawa R, Kashihara T, Murata K, Nakamura K, Tamaoka K, Onoyama Y. [Multifocal fatty infiltration of the liver: report of six cases]. Nihon Igaku Hoshasen Gakkai Zasshi 1990; 50:1063-7. [PMID: 2247347] [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: 12/31/2022]
Abstract
Images of computed tomography (CT), ultrasonography (US), angiography and radionuclide imaging were analyzed in six cases of multifocal fatty infiltration of the liver. Histologic confirmation of fatty infiltration was obtained in one patient by percutaneous biopsy. In the remaining patients, presumptive confirmation of the diagnosis was based on the CT number in one patient and partial or complete resolution of the lesions on repeat CT scans or US in 4 patients. CT and US were performed in all six patients. CT scans demonstrated multiple round areas of low attenuation within both lobes of the liver in all cases. US studies showed hyperechoic foci in three cases and diffuse inhomogeneous hyperechogenicity in three cases. Hepatic arteriograms in five cases and liver scintigrams in four cases showed no evidence of space-occupying lesions. In all cases, the lesions completely or partially resolved in follow-up CT and US, and in four cases the lesions disappeared within two months, so follow-up examinations within about 2 months are necessary to differentiate these from liver neoplasms.
Collapse
Affiliation(s)
- H Hashimoto
- Department of Radiology, Itami City Hospital
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Kiso S, Kashihara T, Ohki A, Fujimori E, Kawakami F, Tako H, Okuno G, Ogawa R, Tsubakimoto M, Hashimoto H. [A case report: transcatheter arterial embolization was effective for hepatocellular carcinoma with bile duct invasion]. Nihon Shokakibyo Gakkai Zasshi 1990; 87:1248-52. [PMID: 2166845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- S Kiso
- Department of Internal Medicine, Itami City Hospital
| | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Kiso S, Kashihara T, Kido Y, Ohki A, Kawakami F, Tako H, Okuno G, Yamada K, Tominaga S, Aozasa K. [A case of primary malignant lymphoma of the rectum]. Nihon Shokakibyo Gakkai Zasshi 1989; 86:2451-5. [PMID: 2687516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
34
|
Okuno G, Kawakami F, Tako H, Kashihara T, Shibamoto S, Yamazaki T, Yamamoto K, Saeki M. Glucose tolerance, blood lipid, insulin and glucagon concentration after single or continuous administration of aspartame in diabetics. Diabetes Res Clin Pract 1986; 2:23-7. [PMID: 3522147 DOI: 10.1016/s0168-8227(86)80025-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A nutritive sweetener, aspartame (L-aspartyl-L-phenylalanine methylester) was administered orally to normal controls and diabetic patients in order to evaluate effects on blood glucose, lipids and pancreatic hormone secretion. An oral glucose tolerance test was also performed in the same subjects as a control study of aspartame administration. In 7 normal controls and 22 untreated diabetics, a single dose of 500 mg aspartame, equivalent to 100 g glucose in sweetness, induced no increase in blood glucose concentration. Rather, a small but significant decrease in blood glucose was noticed 2 or 3 h after administration. The decrease in blood glucose was found to be smallest in the control and became greater as the diabetes increased in severity. No significant change in blood insulin or glucagon concentration during a 3-h period was observed in either the controls or the diabetics. The second study was designed to determine the effects of 2 weeks' continuous administration of 125 mg aspartame, equal in sweetness to the mean daily consumption of sugar (20-30 g) in Japan, to 9 hospitalized diabetics with steady-state glycemic control. The glucose tolerance showed no significant change after 2 weeks' administration. Fasting, 1 h and 2 h postprandial blood glucose, blood cholesterol, triglyceride and HDL-cholesterol were also unaffected. From these and other published results, aspartame would seem to be a useful alternative nutrient sweetener for patients with diabetes mellitus.
Collapse
|
35
|
Tomiyaya Y, Ohki A, Kashihara T, Tako H, Kawakami F, Okuno G, Toda R, Kawano K. [An autopsy case of acute pancreatitis in systemic lupus erythematosus]. Nihon Naika Gakkai Zasshi 1985; 74:926-31. [PMID: 4056556 DOI: 10.2169/naika.74.926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
36
|
Iga K, Hussain A, Kashihara T. Effect of complex formation between 4-hexylresorcinol and ethyl myristate on release rate of 4-hexylresorcinol from petrolatum base. J Pharm Sci 1981; 70:939-43. [PMID: 7310669 DOI: 10.1002/jps.2600700828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The effect of ethyl myristate on the release rate of 4-hexylresorcinol from petrolatum base was studied at pH 7.4 and 37 degrees. 4-Hexylresorcinol was analyzed spectrophotometrically at 278 nm. The release rate of hexylresorcinol from the ointments was directly proportional to the square root of time and depended on the percentage of ethyl myristate in the ointment base. For 0, 0.5, 1, 3, and 5% of ethyl myristate, the release rates were 29.6, 35.4, 38.3, 55.7, and 70.0 micrograms/hr1/2/cm2, respectively. The solubility of hexylresorcinol in the petrolatum base was determined as a function of ethyl myristate using partitioning techniques. The enhancement in hexylresorcinol solubility was rationalized on the basis of 1:1 and 1:2 complexes between hexylresorcinol and ethyl myristate. The complexation constants of these complexes were estimated to be 10 M-1 and 206.1 M-2, respectively. The diffusion coefficient of hexylresorcinol in the petrolatum base was estimated to be 1.31 x 10(-8) cm2/sec.
Collapse
|
37
|
|
38
|
|