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Nobuoka K, Sumi K, Kitagawa E, Sato K, Nakamura A, Kitaoka S. Interaction between DNA and cationic metalloporphyrins in ionic liquid solutions. J PORPHYR PHTHALOCYA 2023. [DOI: 10.1142/s1088424623500487] [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: 02/07/2023]
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Chihara Y, Tsuboi T, Sumi K, Sato A. Effectiveness of high-flow nasal cannula on pulmonary rehabilitation in subjects with chronic respiratory failure. Respir Investig 2022; 60:658-666. [PMID: 35644803 DOI: 10.1016/j.resinv.2022.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 02/07/2022] [Revised: 04/03/2022] [Accepted: 05/01/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The effects of exercise training using both high fraction of inspired oxygen (FIO2) and high flow oxygen delivered through a high-flow nasal cannula (HFNC) on exercise capacity in patients with chronic respiratory failure (CRF) receiving long-term oxygen therapy (LTOT) are unknown. METHODS In this randomized study, 32 patients with CRF receiving LTOT were assigned to undergo 4 weeks of exercise training on a cycle ergometer using an HFNC (flow: 50 L/min) with a FIO2 of 1.0 (HFNC group; n = 16) or ordinary supplemental oxygen via a nasal cannula (flow: 6 L/min) (oxygen group; n = 16). A 6-min walking test and a constant-load test were performed before and after 4 weeks of exercise training. RESULTS Following 4 weeks of exercise training, change in the 6-min walking distance was significantly greater in the HFNC than in the oxygen group (55.2 ± 69.6 m vs. -0.5 ± 87.3 m; p = 0.04). However, there was no significant difference between the two groups in the degree of improvement in the duration of the constant-load exercise test after exercise training. CONCLUSIONS Considering the effect on daily activities (e.g., walking), exercise training using both high FIO2 and high flow through an HFNC is a potentially superior exercise training modality for patients with CRF receiving LTOT. Clinical Trial Registration - http://www. CLINICALTRIALS gov. Unique identifier: NCT02804243.
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Affiliation(s)
- Yuichi Chihara
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Kyoto, Japan.
| | - Tomomasa Tsuboi
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Kyoto, Japan
| | - Kensuke Sumi
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Kyoto, Japan
| | - Atsuo Sato
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Kyoto, Japan
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Sumi K, Osada K, Sakuda M, Ashida K, Nakazato K. Fermented milk retains beneficial effects on skeletal muscle protein anabolism after processing by centrifugation and supernatant removal. J Dairy Sci 2020; 104:1336-1350. [PMID: 33246620 DOI: 10.3168/jds.2020-18780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/28/2020] [Indexed: 12/25/2022]
Abstract
Lactobacillus-fermented milk can stimulate anabolic effects in skeletal muscle. Fermented milk containing Lactobacillus produces aqueous molecules, such as free AA and lactate. This study aimed to investigate how processing fermented milk by centrifugation and removal of supernatant affects AA absorption and postprandial skeletal muscle protein synthesis (MPS) when mice are fed fermented milk. We gavaged male Sprague-Dawley rats with skim milk (S), fermented milk (F), or processed fermented milk (P), and examined the total AA content in portal vein blood (reflecting AA absorption) and plantaris muscle MPS at 30, 60, and 90 min following administration. Relative to fasted rats, at 30 min the total AA concentration in portal vein blood from rats in the P groups was significantly higher, followed by F and S, respectively. The MPS rates were higher for the F or P groups compared with the S group. Phosphorylation levels of p70S6 kinase in the P and F groups were significantly higher than those for the S group 30 min after administration, although the level of Akt phosphorylation was similar among the groups. These results suggested that fermentation improves AA absorption that in turn enhances postprandial MPS via Akt-independent mechanisms, and that processed fermented milk retains these favorable effects on MPS.
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Affiliation(s)
- K Sumi
- Food Microbiology and Function Research Laboratories, R&D Division, Meiji Co. Ltd., 1-29-1 Nanakuni, Hachiouji, Tokyo 192-0919, Japan.
| | - K Osada
- Food Microbiology and Function Research Laboratories, R&D Division, Meiji Co. Ltd., 1-29-1 Nanakuni, Hachiouji, Tokyo 192-0919, Japan
| | - M Sakuda
- Food Microbiology and Function Research Laboratories, R&D Division, Meiji Co. Ltd., 1-29-1 Nanakuni, Hachiouji, Tokyo 192-0919, Japan
| | - K Ashida
- Food Microbiology and Function Research Laboratories, R&D Division, Meiji Co. Ltd., 1-29-1 Nanakuni, Hachiouji, Tokyo 192-0919, Japan
| | - K Nakazato
- Department of Exercise Physiology, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya-ku, Tokyo, Japan
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Chihara Y, Tsuboi T, Sumi K, Sato A, Oga T, Chin K. Low Levels of PaO 2 after Long-term Noninvasive Ventilation are a Poor Prognostic Factor in Patients with Restrictive Thoracic Disease. Intern Med 2019; 58:1243-1250. [PMID: 30626822 PMCID: PMC6543223 DOI: 10.2169/internalmedicine.1860-18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Objective The effects of partial pressure of arterial oxygen (PaO2) after introducing long-term noninvasive ventilation (NIV) on the prognosis of patients with restrictive thoracic disease and chronic respiratory failure are not exactly known. Methods Data from 141 patients with restrictive thoracic disease under long-term nocturnal NIV were retrospectively examined. We divided the patients into 2 groups according to the daytime PaO2 value while breathing spontaneously with prescribed oxygen at 12 months after introducing NIV: PaO2≥80 Torr group (n=76) and PaO2<80 Torr group (n=65). Results During the 4-year follow-up, the mortality was significantly higher in the PaO2<80 Torr group than in the PaO2≥80 Torr group (50.8% vs. 32.9%, p=0.03). Independent factors associated with the 4-year mortality after introducing NIV determined by a multivariate logistic regression analysis were a low body mass index [odds ratio (OR) 0.87; 95% confidence interval (CI) 0.77 to 0.97; p=0.01], assisted mode with NIV (OR 4.11; 95% CI, 1.79 to 9.45; p=0.0009), hospitalization during the first year of introducing NIV (OR 1.72; 95% CI, 1.06 to 2.79; p=0.03), and daytime PaO2<80 Torr at 12 months after introducing NIV (OR 2.30; 95% CI, 1.03 to 5.10; p=0.04). Conclusion A low daytime PaO2 at 12 months after introducing NIV was an independent risk factor for mortality. Keeping the daytime PaO2≥80 Torr through the adjustment of the nocturnal NIV settings or increased diurnal supplemental oxygen may help improve the prognosis in patients with restrictive thoracic disease who are under NIV.
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Affiliation(s)
- Yuichi Chihara
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Japan
| | - Tomomasa Tsuboi
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Japan
| | - Kensuke Sumi
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Japan
| | - Atsuo Sato
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Japan
| | - Toru Oga
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Japan
| | - Kazuo Chin
- Departments of Respiratory Care and Sleep Control Medicine, Kyoto University Graduate School of Medicine, Japan
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Seino S, Sumi K, Narita M, Yokoyama Y, Ashida K, Kitamura A, Shinkai S. Effects of Low-Dose Dairy Protein Plus Micronutrient Supplementation during Resistance Exercise on Muscle Mass and Physical Performance in Older Adults: A Randomized, Controlled Trial. J Nutr Health Aging 2018; 22:59-67. [PMID: 29300423 DOI: 10.1007/s12603-017-0904-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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] [Indexed: 12/24/2022]
Abstract
OBJECTIVES To investigate whether supplementation with low-dose dairy protein plus micronutrients augments the effects of resistance exercise (RE) on muscle mass and physical performance compared with RE alone among older adults. DESIGN Randomized controlled trial. SETTING Tokyo, Japan. PARTICIPANTS Eighty-two community-dwelling older adults (mean age, 73.5 years) were randomly allocated to an RE plus dairy protein and micronutrient supplementation group or an RE only group (n = 41 each). INTERVENTION The RE plus supplementation group participants ingested supplements with dairy protein (10.5 g/day) and micronutrients (8.0 mg zinc, 12 μg vitamin B12, 200 μg folic acid, 200 IU vitamin D, and others/day). Both groups performed the same twice-weekly RE program for 12 weeks. MEASUREMENTS Whole-body, appendicular, and leg lean soft-tissue mass (WBLM, ALM, and LLM, respectively) with dual-energy X-ray absorptiometry, physical performance, biochemical characteristics, nutritional intake, and physical activity were measured before and after the intervention. Data were analyzed by using linear mixed-effects models. RESULTS The groups exhibited similar significant improvements in maximum gait speed, Timed Up-and-Go, and 5-repetition and 30-s chair stand tests. As compared with RE only, RE plus supplementation significantly increased WBLM (0.63 kg, 95% confidence interval [CI]: 0.31-0.95), ALM (0.37 kg, 95% CI: 0.16-0.58), LLM (0.27 kg, 95% CI: 0.10-0.46), and serum concentrations of 25-hydroxyvitamin D (4.7 ng/mL, 95% CI: 1.6-7.9), vitamin B12 (72.4 pg/mL, 95% CI: 12.9-131.9), and folic acid (12.9 ng/mL, 95% CI: 10.3-15.5) (all P < 0.05 for group-by-time interactions). Changes over time in physical activity and nutritional intake excluding the supplemented nutrients were similar between groups. CONCLUSION Low-dose dairy protein plus micronutrient supplementation during RE significantly increased muscle mass in older adults but did not further improve physical performance.
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Affiliation(s)
- S Seino
- Satoshi Seino, PhD, Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae, Itabashi, Tokyo, 173-0015, Japan, Phone: +81 (3) 3964-3241 ext. 4252, E-mail:
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Aso Y, Arita Y, Miura Y, Iwao S, Sumi K, Nakamichi A, Fujioka H, Sasaki Y, Hori D, Amano Y, Ishibashi M, Yabuuchi K, Abe Y, Jikumaru M, Kimura N, Matsubara E. Relationship between white matter lesions and cognitive function in subjects with mild cognitive impairment. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shintani T, Takatsu F, Rosli SNZ, Usui E, Hamada A, Sumi K, Hayashido Y, Toratani S, Okamoto T. Eldecalcitol (ED-71), an analog of 1α,25(OH) 2D 3, inhibits the growth of squamous cell carcinoma (SCC) cells in vitro and in vivo by down-regulating expression of heparin-binding protein 17/fibroblast growth factor-binding protein-1 (HBp17/FGFBP-1) and FGF-2. In Vitro Cell Dev Biol Anim 2017; 53:810-817. [PMID: 28710602 DOI: 10.1007/s11626-017-0183-9] [Citation(s) in RCA: 6] [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] [Received: 04/21/2017] [Accepted: 06/21/2017] [Indexed: 10/19/2022]
Abstract
Heparin-binding protein 17 (HBp17)/fibroblast growth factor-binding protein-1 (FGFBP-1) was first purified from medium conditioned by A431 cells for its capacity to bind to fibroblast growth factors 1 and 2 (FGF-1 and -2). Among FGF family members, FGF-2 is a potent mitogen for various cell types, including vascular endothelial cells, fibroblasts, and cancer cells such as oral squamous cell carcinoma (OSCC) cells. Besides being well known in bone metabolism, the active form of vitamin D3, i.e., 1α,25(OH)2D3 (1,25D3), was reported to have protective effects for heart disease and cancer. Previously, we reported that 1,25D3 inhibited HBp17/FGFBP-1 expression in OSCC cell lines through NF-κB inhibition (IκBα activation) and resulted in the inactivation of FGF-2. In this study, we examined the potential anti-tumor effect of ED-71, an analog of 1α,25(OH)2D3, for squamous cell carcinoma cells in vitro and in vivo. The cell lines used were OSCC cell lines (NA-HO-1-n-1 and UE-HO-1-u-1), established from oral cancer patients in our laboratory, and an epidermoid carcinoma/SCC cell line (A431). The growth assay in serum-free culture revealed that ED-71 inhibited the growth of the cancer cell lines in a dose-dependent manner. In addition, ED-71 suppressed HBp17/FGFBP-1 expression by inhibiting the NF-κB pathway as did 1,25D3. Furthermore, a luciferase reporter assay revealed that the promoter activity of HBp17/FGFBP-1 (region between -217 and +61) was down-regulated by ED-71. Oral administration of ED-71 significantly inhibited the growth of A431-derived tumors in athymic nude mice. Immunohistochemical analysis revealed that the expression of HBp17/FGFBP-1, FGF-2, CD31, and Ki-67 in the tumors of ED71-treated group was down-regulated in comparison to control. These results suggest that ED-71 possesses potential anti-tumor activity for SCCs both in vitro and in vivo. This compound may act directly on the tumor cells or on endothelial cells by modulating the tumor microenvironment.
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Affiliation(s)
- T Shintani
- Center of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima, Japan
| | - F Takatsu
- Oral Maxillofacial Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - S N Z Rosli
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Graduate Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - E Usui
- Oral Maxillofacial Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - A Hamada
- Oral Maxillofacial Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - K Sumi
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Graduate Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - Y Hayashido
- Oral Maxillofacial Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - S Toratani
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Graduate Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan
| | - Tetsuji Okamoto
- Department of Molecular Oral Medicine and Maxillofacial Surgery, Division of Applied Life Sciences, Graduate Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, 734-8553, Japan.
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Ronellenfitsch MW, Oh J, Satomi K, Sumi K, Harter PN, Steinbach JP, Felsberg J, Capper D, Voegele C, Schittenhelm J, Mittelbronn M, Ohgaki H. P03.21 Casp9 germline mutation in a family with multiple brain tumors. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
OBJECTIVE In subjects with chronic obstructive pulmonary disease (COPD), the effect of partial pressure of CO2 (PaCO2) alterations during long-term non-invasive ventilation (NIV) on continuance remains uncertain. We herein investigated the utility of PaCO2 stability during long-term NIV as a prognostic outcome. METHODS We retrospectively assessed data from 54 subjects with COPD who received long-term NIV. The annual alteration in PaCO2 during NIV was determined using a simple linear regression method for each subject who had at least two 6-month intervals of PaCO2 data. Annual alterations in PaCO2 during long-term NIV and probable confounders were examined, and long-term NIV discontinuation was the major outcome. RESULTS Data from 37 subjects who met the criteria were analyzed. PaCO2 during long-term NIV increased slightly in 19 subjects (group 1, <2 mm Hg/y), and increased greatly in 18 subjects (group 2, >2 mmHg/y). In the multivariate modality model, smaller annual alterations in PaCO2 (p=0.009) and lower PaCO2 6 months after the start of long-term NIV (6 m-PaCO2) (p=0.03) were associated with a significantly higher probability of continuing NIV. The 2- and 5-year probabilities of continuing NIV were 89% and 66% for group 1 and 78% and 32% for group 2, respectively. CONCLUSION A lower 6 m-PaCO2 and a lower annual alteration of PaCO2 during long-term NIV are significant predictive variables for patients with COPD.
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Affiliation(s)
- Tomomasa Tsuboi
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto Hospital, Japan
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Azuma M, Chin K, Yoshimura C, Takegami M, Takahashi KI, Sumi K, Nakamura T, Nakayama-Ashida Y, Minami I, Horita S, Oka Y, Oga T, Wakamura T, Fukuhara SI, Mishima M, Kadotani H. Associations among Chronic Obstructive Pulmonary Disease and Sleep-Disordered Breathing in an Urban Male Working Population in Japan. Respiration 2014; 88:234-43. [DOI: 10.1159/000366064] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 07/22/2014] [Indexed: 11/19/2022] Open
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Tsuboi T, Oga T, Sumi K, Machida K, Ohi M, Chin K. The Importance of Controlling PaCO2 Throughout Long-Term Noninvasive Ventilation. Respir Care 2014; 59:1671-8. [DOI: 10.4187/respcare.02829] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Toyama Y, Chin K, Chihara Y, Takegami M, Takahashi KI, Sumi K, Nakamura T, Nakayama-Ashida Y, Minami I, Horita S, Oka Y, Wakamura T, Fukuhara SI, Mishima M, Kadotani H. Association Between Sleep Apnea, Sleep Duration, and Serum Lipid Profile in an Urban, Male, Working Population in Japan. Chest 2013; 143:720-728. [DOI: 10.1378/chest.12-0338] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Yoshimura C, Oga T, Chin K, Takegami M, Takahashi KI, Sumi K, Nakamura T, Nakayama-Ashida Y, Minami I, Horita S, Oka Y, Wakamura T, Fukuhara S, Mishima M, Kadotani H. Relationships of decreased lung function with metabolic syndrome and obstructive sleep apnea in Japanese males. Intern Med 2012; 51:2291-7. [PMID: 22975537 DOI: 10.2169/internalmedicine.51.7427] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Decreased lung function as assessed by forced vital capacity (FVC) and forced expiratory volume in one second (FEV(1)) is shown to be associated with cardiovascular morbidity and mortality. Although the underlying mechanisms for this association remain unknown, metabolic syndrome and obstructive sleep apnea (OSA) may have a role. We analyzed the relationships between metabolic syndrome and OSA in a cross-sectional health survey of middle-aged male employees. METHODS In this secondary analysis, we re-analyzed the relationships of lung function determined by spirometry with metabolic syndrome and OSA based on the respiratory disturbance index (RDI) with a type 3 portable monitor. RESULTS We analyzed 273 subjects. Independent of age, body mass index (BMI) and smoking, quartiles for lower FVC and FEV(1) were associated with a higher risk of metabolic syndrome compared with quartiles for the highest FVC and FEV(1), respectively. A similar trend was observed regarding the risk associated with waist circumference, and in FVC cases, dyslipidemia. The risk of hyperglycemia was significantly higher in quartiles for the second lowest FVC and FEV(1) than in quartiles for the highest FVC and FEV(1), respectively. A significant trend for an increase in RDI was observed in accordance with quartiles for lower FVC, but not FEV(1). CONCLUSION There was a significant relationship between lung function impairment and metabolic syndrome through mainly abdominal obesity, partially through hyperglycemia, and also through dyslipidemia, but only with respect to restrictive lung function. Restrictive lung function was also related to OSA. This epidemiologic evidence may indicate underlying mechanisms between decreased lung function and cardiovascular risk.
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Affiliation(s)
- Chikara Yoshimura
- Department of Respiratory Care and Sleep Control Medicine, Graduate School of Medicine, Kyoto University, Japan
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Imagawa A, Koito H, Sumi K, Kishida K, Taniguchi Y, Sakanoue Y. [Report from Kinki Chapter Educational Seminer: Sleep apnea syndrome in internal medicine]. Nihon Naika Gakkai Zasshi 2011; 100:3084-3092. [PMID: 22175157 DOI: 10.2169/naika.100.3084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Affiliation(s)
- Akihisa Imagawa
- Department of Metabolic Medicine, Graduate School of Medicine, Osaka University, Japan
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Nishio C, Sato A, Tsuboi T, Sumi K, Kurasawa T. [Pneumonitis induced by rifampicin]. Kekkaku 2011; 86:473-476. [PMID: 21702177] [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: 05/31/2023]
Abstract
An 86-year-old male with pulmonary tuberculosis developed fever, rash, and interstitial pneumonia 3 weeks after the beginning of treatment with isoniazid (INH), rifampicin (RFP), and ethambutol (EB). Chest CT showed new infiltration shadows that were diffuse bilateral ground-glass opacities mixed with dense consolidation and septal thickening, accompanied by a small amount of pleural effusion. Drug-induced pneumonitis was suspected, and therefore the antituberculous regimen was discontinued. The radiologic findings and symptoms improved promptly. A provocation trial with RFP lead to fever, diarrhea, and rash. Therefore, RFP was considered to be the causative drug. INH and EB were reintroduced without any recurrence of the symptoms. Clinicians should be aware not only of paradoxical reactions but also of drug-induced pneumonitis, when a new pulmonary infiltrate develops in the course of tuberculosis treatment.
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Affiliation(s)
- Chihiro Nishio
- Department of Respiratory Medicine, National Hospital Organization Minami-Kyoto National Hospital, Kyoto, Japan.
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Tsuboi T, Oga T, Machida K, Sumi K, Oguri S, Sato A, Kurasawa T, Ohi M, Mishima M, Chin K. PaCO2 six months after the initiation of long-term noninvasive ventilation in patients with COPD. Intern Med 2011; 50:563-70. [PMID: 21422679 DOI: 10.2169/internalmedicine.50.4310] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND AND OBJECTIVE The appropriate target level for PaCO(2) after the introduction of long-term noninvasive positive pressure ventilation (NPPV) in patients with COPD remains uncertain, and therefore must be tested. METHODS Data on 54 patients with COPD receiving long-term domiciliary NPPV were examined retrospectively. PaCO(2) a few months after NPPV and potential confounders were analyzed with discontinuation of long-term NPPV as the primary outcome. The differences in annual hospitalization rates due to respiratory deterioration between those from 1 year before to 2 years after initiation of NPPV were compared according to the PaCO(2) measured at 6 months after NPPV (6-mo PaCO(2)). RESULTS 6-mo PaCO(2) seemed to be most related to continuation of NPPV (p=0.019). Patients with 6-mo PaCO(2) of less than 60 mmHg had maintained a significantly lower PaCO(2) value 6 to 24 months after NPPV (p=0.04) and had a significantly higher continuation rate of NPPV (p=0.03) than those with a 6-mo PaCO(2) of 60 mmHg or more. Annual hospitalization rates due to respiratory deterioration were not associated with the 6-mo PaCO(2) level, but fatal hospitalization rates during the first year of NPPV were significantly correlated with relatively high 6-mo PaCO(2) (p=0.008). CONCLUSION A relatively low 6-mo PaCO(2) value was predictive of long-term use of NPPV. The target values of 6-mo PaCO(2) may, therefore, be less than 60 mmHg in COPD patients with extremely severe hypercapnia, although more prospective studies are needed.
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Affiliation(s)
- Tomomasa Tsuboi
- Department of Respiratory Care and Sleep Control Medicine, Kyoto University Graduate School of Medicine, Japan.
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Fukaya C, Watanabe M, Sumi K, Otaka T, Shijo K, Nagaoka T, Kobayashi K, Oshima H, Yamamoto T, Katayama Y. S28-3 D-wave monitoring in brain tumor surgery. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60183-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sugiyama M, Sato A, Oguri S, Sumi K, Tsuboi T, Kurasawa T. [A case of squamous cell lung carcinoma with gastric metastasis diagnosed by gastroendoscopic biopsy]. Nihon Kokyuki Gakkai Zasshi 2010; 48:668-671. [PMID: 20954368] [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: 05/30/2023]
Abstract
A 59-year-old man was referred to our hospital due to of a right pulmonary hilar mass shadow found on a chest X-ray film in October 2008. Bronchoscopy and transbronchial biopsy at that time revealed squamous cell carcinoma. The clinical stage was IIIB (T4N2M0). He was readmitted 2 months later because of appetite loss and severe anemia. An abdominal CT scan showed thickening of the stomach wall. Gastroendoscopy showed a submucosal tumor with central depression in the middle body of the stomach. We histologically confirmed that the gastric lesion was metastasis from the squamous cell lung carcinoma. Here we report a rare case of squamous cell lung carcinoma with gastric metastasis diagnosed by gastroendoscopic biopsy while the patient was alive.
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Affiliation(s)
- Makiko Sugiyama
- Department of Respiratory Internal Medicine, NHO South Kyoto Hospital
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Tsuboi T, Ohi M, Oga T, Machida K, Chihara Y, Harada Y, Takahashi K, Sumi K, Handa T, Niimi A, Mishima M, Chin K. Importance of the PaCO(2) from 3 to 6 months after initiation of long-term non-invasive ventilation. Respir Med 2010; 104:1850-7. [PMID: 20537881 DOI: 10.1016/j.rmed.2010.04.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 04/21/2010] [Accepted: 04/27/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND The level at which arterial carbon dioxide tension (PaCO(2)) a few months after introduction of long-term non-invasive positive pressure ventilation (NPPV) is associated with a favorable prognosis remains uncertain. METHODS Data on 184 post-tuberculosis patients with chronic restrictive ventilatory failure who were receiving long-term domiciliary NPPV were examined retrospectively. Average PaCO(2) 3-6 months after NPPV (3- to 6-mo PaCO(2)) and potential confounders were analyzed with discontinuation of long-term NPPV as the primary outcome. The effects of 3- to 6-mo PaCO(2) on annual hospitalization rates due to respiratory deterioration from 1 year before to 3 years after the initiation of NPPV were examined. The effect of the difference between the PaCO(2) value at the start of NPPV (0-mo PaCO(2)) and the PaCO(2) value 3- to 6-mo later (d-PaCO(2)) on continuation rates for NPPV was also assessed in patients who initiated NPPV while in a chronic state. RESULTS Patients with relatively low 3- to 6-mo PaCO(2) values maintained a relatively low PaCO(2) 6-36 months after NPPV (p < 0.0001) and had significantly better continuation rates (p < 0.03) and lower hospitalization rates from the 1st to 3rd year of NPPV (p = 0.008, 0.049, 0.009, respectively) than those with higher levels. The 0-mo PaCO(2) (p = 0.26) or d-PaCO(2) (p = 0.86) had no predictive value. CONCLUSION A relatively low 3- to 6-mo PaCO(2) value was predictive of long-term use of NPPV. The target values for 3- to 6-mo PaCO(2) may, therefore, be less than 60 mmHg in post-tuberculosis patients, although more studies are needed.
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Affiliation(s)
- Tomomasa Tsuboi
- Department of Respiratory Care and Sleep Control Medicine, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, Japan.
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Chin K, Oga T, Takahashi KI, Takegami M, Nakayama-Ashida Y, Wakamura T, Sumi K, Nakamura T, Horita S, Oka Y, Minami I, Fukuhara S, Kadotani H. Associations between obstructive sleep apnea, metabolic syndrome, and sleep duration, as measured with an actigraph, in an urban male working population in Japan. Sleep 2010; 33:89-95. [PMID: 20120625 PMCID: PMC2802253 DOI: 10.1093/sleep/33.1.89] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [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] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Severe obstructive sleep apnea (OSA), metabolic syndrome (Mets) and short sleep duration are all risk factors for cardiovascular events. There has been no report which has investigated this relationship in an age- and BMI-matched population-based study. The prevalence of OSA in Mets subjects has not been established, although the converse (i.e., the prevalence of Mets in OSA subjects) has been investigated several times. METHODS This home cardiorespiratory (type 3) sleep study, using an actigraph, was conducted in 275 males working for an urban company. Retrospective measurements of fasting blood parameters were obtained from the company's periodical inspection data. The mean duration between the sleep study and the measurement of blood parameters was 213 days. RESULTS Although there was a significant relationship between OSA severity and the prevalence of Mets (P < 0.001), the association between severity and Mets was not significant after adjustments were made for age and BMI. Severe OSA was 7.8 times as likely to be present in subjects with Mets (16.2% of all 68 Mets subjects) as those without (2.4% of 207 non-Mets) (P < 0.001). Subject with severe OSA had a significantly short sleep duration (P < 0.05). Sleep duration in Mets subjects was also significantly shorter than in those without (P < 0.05). CONCLUSIONS Although increased BMI and age both had a significant effect on the prevalence of OSA in patients with Mets, one of 6 subjects with Mets, but only one of 40 without Mets had severe OSA in an urban male population in Japan. Physicians should take into account this high prevalence of severe OSA in patients with Mets. Sleep duration should be taken into consideration as an important factor in studies investigating the prevalence of severe OSA and Mets.
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Affiliation(s)
- Kazuo Chin
- Department of Respiratory Care and Sleep Control Medicine, Graduate School of Medicine, Kyoto University Kyoto, Japan.
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21
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Takahashi KI, Chin K, Akamizu T, Morita S, Sumi K, Oga T, Matsumoto H, Niimi A, Tsuboi T, Fukuhara S, Kangawa K, Mishima M. Acylated ghrelin level in patients with OSA before and after nasal CPAP treatment. Respirology 2009; 13:810-6. [PMID: 18811879 DOI: 10.1111/j.1440-1843.2008.01357.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVE Patients with newly diagnosed OSA have been reported to have recent weight gain prior to diagnosis. Ghrelin stimulates food intake and increases weight gain. Plasma ghrelin is decreased in obese and increased in lean individuals. Of the two circulating forms of ghrelin, acylated and unacylated, the former is thought to be essential for the biological activity of ghrelin. METHODS The plasma levels of the two forms of ghrelin were measured in 21 OSA patients (with a mean of 46.2 sleep-disordered events/h) before and after 1 month of nasal CPAP (nCPAP) treatment, and were compared with those in 14 untreated OSA patients and 13 individuals without OSA. RESULTS The BMI was significantly higher in the 21 OSA patients than in the non-OSA group as were the baseline acylated (11.4 +/- 5.86 vs 7.19 +/- 3.80 fmol/mL, P = 0.03) and unacylated (84.2 +/- 50.6 vs 48.3 +/- 23.2 fmol/mL, P = 0.02) ghrelin levels. The total ghrelin level was positively correlated with the number of sleep-disordered breathings (P = 0.002). After 1 month of nCPAP treatment, the acylated ghrelin level significantly decreased (P = 0.02) while the unacylated ghrelin level did not (P = 0.09). CONCLUSIONS Treatment of OSA may play an important role in the management of obesity in these patients by reducing the acylated ghrelin level.
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Affiliation(s)
- Ken-ichi Takahashi
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Nakayama-Ashida Y, Takegami M, Chin K, Sumi K, Nakamura T, Takahashi KI, Wakamura T, Horita S, Oka Y, Minami I, Fukuhara S, Kadotani H. Sleep-disordered breathing in the usual lifestyle setting as detected with home monitoring in a population of working men in Japan. Sleep 2008; 31:419-25. [PMID: 18363319 DOI: 10.1093/sleep/31.3.419] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
STUDY OBJECTIVES To examine (1) the prevalence of home-monitored sleep-disordered breathing (SDB) and obstructive sleep apnea syndrome in a Japanese working population and (2) whether home monitoring with a type 3 portable monitor and actigraphy can produce reliable data to analyze SDB in usual lifestyles. METHODS A cross-sectional survey using a self-administered questionnaire was conducted on a group of employees at a wholesale company in Osaka, Japan. Examinations by physicians and by sleep monitoring were also performed. Unattended home cardiorespiratory (type 3) sleep studies with actigraphy were conducted for 2 nights to diagnose SDB in 322 subjects. From the baseline questionnaires and sleep diaries, participants were assessed to follow their usual lifestyles during the study (e.g., time in bed, alcohol intake). RESULTS Of 466 Japanese male employees, 396 responded to the questionnaire survey (85.0%). Results from 322 male employees aged 23 to 59 (43.8 +/- 8.4 years) were analyzed. Respiratory disturbance index (RDI), calculated from the type 3 portable monitors and actigraphy, was highly reliable with an intraclass correlation of 0.98 for interscorer reliability and with an intraclass correlation of 0.95 for night-to-night reliability. Prevalence of mild (5 < or = RDI < 15), moderate (15 < or = RDI < 30) and severe (RDI < or = 30) SDB in this population were 37.4%, 15.7%, and 6.6%, respectively. The prevalence of obstructive sleep apnea syndrome (RDI > or = 5 and Epworth Sleepiness Scale score > 10) was 17.6%. CONCLUSIONS The prevalence of moderate to severe SDB (RDI > or = 15) was 22.3% in this Japanese male working population aged 23 to 59, measured in participant's usual life settings. Unattended home monitoring with type 3 portable monitors and actigraphy was highly reliable and may be suitable for analyzing SDB in the usual lifestyle setting.
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Affiliation(s)
- Yukiyo Nakayama-Ashida
- Horizontal Medical Research Organization, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Takahashi KI, Chin K, Nakamura H, Morita S, Sumi K, Oga T, Matsumoto H, Niimi A, Fukuhara S, Yodoi J, Mishima M. Plasma thioredoxin, a novel oxidative stress marker, in patients with obstructive sleep apnea before and after nasal continuous positive airway pressure. Antioxid Redox Signal 2008; 10:715-26. [PMID: 18199002 DOI: 10.1089/ars.2007.1949] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [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: 11/12/2022]
Abstract
Obstructive sleep apnea (OSA) is associated with increased cardiovascular mortality, and oxidative stress was suggested to play an important role. We hypothesized that the plasma TRX level, a novel oxidative stress marker, is elevated in OSA patients. Plasma TRX and adiponectin levels, which are significantly associated with cardiovascular mortality, were measured in 41 patients with severe OSA before (n = 41) and after (n = 27) nasal continuous positive airway pressure therapy (nCPAP) for 1 month and in 12 subjects without OSA (non-OSA group). The TRX level was significantly higher (p = 0.02) and the adiponectin level was significantly lower (p = 0.02) in the OSA group than in the non-OSA group. After 1 month of nCPAP (n = 27), the TRX level significantly decreased (p = 0.03), and the adiponectin level significantly increased (p = 0.03). Among the 14 patients with untreated OSA, the TRX and adiponectin levels did not significantly change over a 1-month interval. Among the 53 (41 OSA + 12 non-OSA) subjects, the TRX level was positively correlated with the respiratory disturbance index (p = 0.001) and percentage of time with SaO(2) <90% (p = 0.0002). The adiponectin level, but not the TRX level, was correlated with the BMI (n = 53; p = 0.02). Plasma TRX may be a unique marker for evaluating oxidative stress and monitoring the effectiveness of nCPAP in OSA patients.
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Affiliation(s)
- Ken-Ichi Takahashi
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Abstract
The purposes of this study were to demonstrate the transition of heart rate variability (HRV) during trials in the field and to examine the relationship between peak frequency of high-frequency band (HF) and stride frequency. Ten healthy long-distance college female runners (age 19-21 years) performed a 3000 m realistic time trial. The time-series power spectrum analysis by maximum entropy method was used to evaluate cardiac autonomic nervous activity during the race. Cross-correlation coefficients were calculated to estimate the degree of linear co-ordination between the central peak frequency of HF and stride frequency. Just after starting, the decrease in HF (0.15-1.00 Hz) and a transient increase of low-frequency band (LF)/HF were found. After that, the HF remained at a low level and LF/HF decreased sharply. These findings suggested that the parasympathetic activity was suppressed and sympathetic activity increased just after starting, and the sympathetic activity reached the saturated level according to continuation of high-intensity exercise. In spite of the significant decrease of HRV during trials, peak frequency of HF could be differentiated clearly. The cross-correlation coefficient of peak frequency of HF and stride frequency was from 0.703 to 0.868. This finding indicated that exercise rhythm reflected HRV during high-intensity running in the field.
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Affiliation(s)
- K Sumi
- Institute for Health & Sports Science, Faculty of Liberal Arts, Chukyo University, Nagoya, Japan
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25
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Chin K, Nakamura T, Takahashi KI, Sumi K, Matsumoto H, Niimi A, Fukuhara S, Mishima M, Nakamura T. Falls in blood pressure in patients with obstructive sleep apnoea after long-term nasal continuous positive airway pressure treatment. J Hypertens 2006; 24:2091-9. [PMID: 16957571 DOI: 10.1097/01.hjh.0000244960.69985.4c] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Effective treatment of obstructive sleep apnoea (OSA) with nasal continuous positive airway pressure (nCPAP) lowers blood pressure (BP). The long-term effects of nCPAP treatment on BP in OSA patients are not well known. The time period of such treatment sufficient to lower BP in OSA patients is also not known. We investigated compliance with long-term nCPAP therapy and its effects on BP. METHODS This observational study involved 66 OSA patients [59 men, seven women; mean age, 51 (48-54) years; body mass index (BMI), 28.7 (27.7-29.7) kg/m; apnoea and hypopnoea, 50.3 (45.6-55.0)/h; 95% confidence intervals]. BP and BMI were measured before the study and at two checkpoints after usage of nCPAP [620 (552-688) and 1071 (1000-1143) days]. RESULTS The different times between the first and second checkpoints for detecting objective compliance were 17 (4-30) min (P = 0.003). Diastolic BP decreased by 5.9 (3.1-8.7) mmHg after 600 days nCPAP treatment and by 4.6 (2.0-7.2) mmHg after 1000 days (P = 0.0006). Systolic BP and BMI did not change significantly. Usage of nCPAP treatment for a daily average of 3 h was needed to achieve a significant decrease in diastolic BP [7.4 (4.3-10.6) mmHg, P < 0.0001]. Diastolic BP of normotensive OSA patients did not change significantly by nCPAP treatment, but that of hypertensive OSA patients decreased significantly within 1 month-3 years of nCPAP treatment whether or not medication was used. CONCLUSIONS In patients with severe OSA, the use of nCPAP for a daily average of 3 h would be sufficient to decrease the diastolic BP of hypertensive OSA patients.
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Affiliation(s)
- Kazuo Chin
- Department of Physical Therapeutics, Kyoto University Hospital, Kyoto, Japan.
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26
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Sumi K, Chin K, Takahashi K, Nakamura T, Matsumoto H, Niimi A, Mishima M. Effect of nCPAP therapy on heart rate in patients with obstructive sleep apnoea-hypopnoea. QJM 2006; 99:545-53. [PMID: 16861714 DOI: 10.1093/qjmed/hcl074] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Elevated heart rate (HR) is a risk factor for cardiovascular disease. The effects of obstructive sleep apnoea-hypopnoea syndrome (OSAHS) on HR are controversial. AIM To investigate the effect of nasal continuous positive airway pressure (nCPAP) therapy on HR in OSAHS patients. METHODS Sixty-two OSAHS patients underwent 24-h electrocardiographic recording, both before and 3 or 4 days after instigation of nCPAP. RESULTS After nCPAP was started, HR significantly decreased (mean +/- SD 71.8 +/- 10.6 vs. 67.5 +/- 9.4 bpm, p < 0.0001), both in the daytime (0600-2200 h, 76.3 +/- 12.2 vs. 72.2 +/- 10.2 bpm, p < 0.0001) and at night-time (2200-0600 h, 64.5 +/- 9.1 vs. 60.0 +/- 8.9 bpm, p < 0.0001). HR was significantly reduced in both periods in the 44 patients with hypertension and/or diabetes mellitus, but only during the night-time in the 18 with neither condition. Before nCPAP treatment, HR was positively correlated with percentage time of arterial O2 saturation <90% during sleep (p = 0.008) and with the apnoea-hypopnoea index during sleep (p = 0.003). In 15 patients undergoing HR for 2 days before starting nCPAP, the mean HRs for the two periods were similar (p = 0.95). DISCUSSION nCPAP therapy appears to decrease HR in OSAHS patients, and may thereby reduce their risk of cardiovascular disease.
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Affiliation(s)
- K Sumi
- Department of Respiratory Medicine, Kyoto University Hospital of Medicine, 54 Shogoin Kawahara-cho, Sakyo-Ku, 606-8507 Kyoto, Japan
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27
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Tanaka T, Jiang S, Hotta H, Takano K, Iwanari H, Sumi K, Daigo K, Ohashi R, Sugai M, Ikegame C, Umezu H, Hirayama Y, Midorikawa Y, Hippo Y, Watanabe A, Uchiyama Y, Hasegawa G, Reid P, Aburatani H, Hamakubo T, Sakai J, Naito M, Kodama T. Dysregulated expression of P1 and P2 promoter-driven hepatocyte nuclear factor-4α in the pathogenesis of human cancer. J Pathol 2006; 208:662-72. [PMID: 16400631 DOI: 10.1002/path.1928] [Citation(s) in RCA: 137] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hepatocyte nuclear factor-4alpha (HNF4alpha) exists in multiple isoforms that are generated by alternative promoter (P1 and P2) usage and splicing. Here we establish monoclonal antibodies (mAbs) for detecting P1 and P2 promoter-driven HNF4alpha, and evaluate their expression in normal adult human tissues and surgically resected carcinomas of different origins. Using immunohistochemical analysis, we demonstrate that, while P1 promoter-driven HNF4alpha is expressed in hepatocytes, small intestine, colon, kidney and epididymis, P2 promoter-driven HNF4alpha is expressed in bile duct, pancreas, stomach, small intestine, colon and epididymis. Altered expression patterns of P1 and P2 promoter-driven HNF4alpha were observed in gastric, hepatocellular and colorectal carcinomas. HNF4alpha was expressed in lung metastases from renal cell, hepatocellular and colorectal carcinoma but was not observed in lung tumours. The P1 and P2 promoter-driven HNF4alpha expression pattern of tumour metastases correlated with the primary site of origin. P1 promoter-driven HNF4alpha was also found in intestinal metaplasia of the stomach. These data provide evidence for the tissue distribution of P1 and P2 promoter-driven HNF4alpha at the protein level and suggest that HNF4alpha may be a novel diagnostic marker for metastases of unknown primary. We propose that the dysregulation of alternative promoter usage of HNF4alpha is associated with the pathogenesis of certain cancers.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antibody Specificity
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/immunology
- Biomarkers, Tumor/metabolism
- Cell Transformation, Neoplastic/genetics
- Female
- Gene Expression Regulation, Neoplastic
- Hepatocyte Nuclear Factor 4/genetics
- Hepatocyte Nuclear Factor 4/immunology
- Hepatocyte Nuclear Factor 4/metabolism
- Humans
- Lung Neoplasms/metabolism
- Lung Neoplasms/secondary
- Male
- Neoplasm Proteins/genetics
- Neoplasm Proteins/immunology
- Neoplasm Proteins/metabolism
- Neoplasms/genetics
- Neoplasms/metabolism
- Precancerous Conditions/metabolism
- Promoter Regions, Genetic
- RNA, Messenger/genetics
- RNA, Neoplasm/genetics
- Reverse Transcriptase Polymerase Chain Reaction/methods
- Stomach Neoplasms/metabolism
- Tissue Distribution
- Tumor Cells, Cultured
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Affiliation(s)
- T Tanaka
- Laboratory for Systems Biology and Medicine, Research Center for Advanced Science and Technology, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan
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Takahashi KI, Chin K, Ogawa K, Kasahara M, Sakaguchi T, Hasegawa S, Sumi K, Nakamura T, Tamaki A, Mishima M, Nakamura T, Tanaka K. Living donor liver transplantation with noninvasive ventilation for exertional heat stroke and severe rhabdomyolysis. Liver Transpl 2005; 11:570-2. [PMID: 15838872 DOI: 10.1002/lt.20400] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A 16-year-old male with exertional heat stroke (EHS) had extensive hepatocellular damage, severe rhabdomyolysis, renal failure, and coma. Hemodiafiltration was started on day 2 and living donor liver transplantation was performed on day 3. He received continuous mechanical ventilation with intubation before and after the surgery. As his mental status improved, he could not tolerate intubation, and he was extubated on postoperative day (POD) 26. He received facial noninvasive positive pressure ventilation until POD 50. Hemodiafiltration was discontinued on POD 52. He was discharged on POD 67 and is currently well more than a year after transplantation. A literature search indicates that this patient is the first long-term survivor (>1 year) after liver transplantation for exertional heat stroke.
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Affiliation(s)
- Ken-ichi Takahashi
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto University Hospital, Kyoto, Japan
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Takahashi KI, Chin K, Sumi K, Nakamura T, Matsumoto H, Niimi A, Ikai I, Mishima M. Resistant hepatic hydrothorax: a successful case with treatment by nCPAP. Respir Med 2005; 99:262-4. [PMID: 15733499 DOI: 10.1016/j.rmed.2004.08.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2004] [Indexed: 11/23/2022]
Abstract
Hepatic hydrothorax is defined as pleural effusion with liver cirrhosis but no primary cardiopulmonary disease. Hepatic hydrothorax is often resistant to various therapeutic interventions. The most likely cause is the transfer of ascites fluid from the abdomen to the pleural space via the diaphragm because of a negative intrathoracic pressure gradient. A 62-year-old man was diagnosed with hepatoma and cirrhosis. After a partial hepatectomy, he suffered with hepatic hydrothorax. He had snoring without obvious sleep apnea. The patient's hepatic hydrothorax markedly improved following nasal continuous positive airway pressure (nCPAP) treatment during sleep. The mechanism for the improvement may have been the intrathoracic positive pressure during sleep induced by the nCPAP treatment during sleep. nCPAP treatment may provide a new therapy for resistant hepatic hydrothorax.
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Affiliation(s)
- Ken-ichi Takahashi
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto University Hospital, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
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30
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Yokozeki H, Wu MH, Sumi K, Awad S, Satoh T, Katayama I, Takeda K, Akira S, Kaneda Y, Nishioka K. In vivo transfection of a cis element 'decoy' against signal transducers and activators of transcription 6 (STAT6)-binding site ameliorates IgE-mediated late-phase reaction in an atopic dermatitis mouse model. Gene Ther 2005; 11:1753-62. [PMID: 15306842 DOI: 10.1038/sj.gt.3302341] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Signal transducers and activators of transcription 6 (STAT6) play a crucial role in the transactivation of IL-4 and IL-13, which might be involved in the pathogenesis of atopic dermatitis (AD). We herein reported that the IgE-mediated late-phase reaction significantly decreased in STAT6-deficient (STAT6(-/-)) mice in AD model mice induced by intravenous injection of monoclonal anti-dinitrophenyl (DNP)-IgE antibody and subsequent skin testing with dinitrofluorobenzene. We therefore hypothesized that synthetic double-stranded DNA with a high affinity for STAT6 could be introduced in vivo as decoy cis elements to bind the transcriptional factor and block the gene activation contributing to the onset and progression of AD, thus providing effective therapy for AD. Treatment by the transfection of STAT6 decoy oligodeoxynucleotides (ODNs), but not scramble decoy ODN after sensitization by anti-DNP-IgE antibody, had a significant inhibitory effect on not only STAT6 binding to nuclei but also on the late-phase response. A histological analysis revealed that both edema and the infiltration of neutrophils and eosinophils significantly decreased in STAT6 decoy ODN-transfected mice. To examine the mechanism of the in vivo effect of STAT6 decoy ODN, we employed an in vitro mast cells culture system. After IgE receptor engagement, mast cells transfected by STAT6 decoy ODN exhibited normal histamine release, but their cytokine release (TNF-alpha, IL-6) markedly decreased. We herein report the first successful in vivo transfer of STAT6 decoy ODN to reduce the late-phase reaction, thereby providing a new therapeutic strategy for AD.
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Affiliation(s)
- H Yokozeki
- Department of Dermatology and Immunodermatology, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
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31
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Sumi K, Yokozeki H, Wu MH, Satoh T, Kaneda Y, Takeda K, Akira S, Nishioka K. In vivo transfection of a cis element 'decoy' against signal transducers and activators of the transcription 6 (STAT6) binding site ameliorates the response of contact hypersensitivity. Gene Ther 2005; 11:1763-71. [PMID: 15306843 DOI: 10.1038/sj.gt.3302345] [Citation(s) in RCA: 14] [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] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We herein demonstrate that STAT6 plays an important role in the induction of not only acute contact hypersensitivity (CHS), but also chronic CHS in a mouse model using STAT6-deficient (STAT6(-/-)) mice. We, therefore, determine whether synthetic double-stranded DNA with a high affinity for STAT6 can be introduced in vivo as a decoy cis element to bind the transcriptional factor and block the induction of not only acute CHS but also chronic CHS. Treatment by the transfection of STAT6 decoy oligodeoxynucleotides (ODN), after the induction of 2,4,6-trinitrochlorobenzene or other haptens had a significant inhibitory effect on the induction of both acute CHS and chronic CHS. We thus examined the mechanism of the in vivo effect of the transfection of STAT6 decoy ODN in both acute and chronic CHS. In the histological analysis, the infiltration of eosinophils and degranulated mast cells, and the production of IL-4, IL-6 and eotaxin, but not IFN-gamma in the extracts from challenged skin significantly decreased by the transfection of STAT6 decoy ODN. We herein report the first successful in vivo transfer of STAT6 decoy ODN to inhibit acute and chronic CHS, thus providing a new therapeutic strategy not only for the treatment of CHS but also for atopic dermatitis.
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Affiliation(s)
- K Sumi
- Department of Environmental Immunodermatology, Postgraduate School, Tokyo Medical & Dental University, Tokyo, Japan
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Chin K, Uemoto S, Takahashi KI, Egawa H, Kasahara M, Fujimoto Y, Sumi K, Mishima M, Sullivan CE, Tanaka K. Noninvasive ventilation for pediatric patients including those under 1-year-old undergoing liver transplantation. Liver Transpl 2005; 11:188-95. [PMID: 15666379 DOI: 10.1002/lt.20297] [Citation(s) in RCA: 33] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pulmonary complications are an important cause of the mortality associated with liver transplantation. The efficacy of noninvasive ventilation (NIV) in pediatric patients following transplantation is unknown. The purpose of this retrospective study is to investigate the effects of NIV for pediatric patients undergoing liver transplantation. Of 102 pediatric patients who underwent liver transplantation, 15 patients (aged 73 months; range 2.5-179) were supported by NIV because of atelectasis, hypercapnia, hypoxemia, pneumonia, massive effusion, or postextubation ventilatory support. Of 15 patients, 5 were under the age of 1 year (range 2.5-12 months). Of the 15 patients, 7 had required multiple intubations before NIV treatment because of pulmonary complications. NIV treatment was administered to 6 patients because of hypercapnia. Partial pressure of arterial carbon dioxide (PaCO(2)) levels improved from 56.9 (95% confidence interval [CI]: 48.4-65.4) to 41.5 (95% CI: 36.8-46.2) mmHg (P = .028) within 2 days. NIV treatment was very effective for patients with atelectasis with and without other pulmonary complications. Mean inspiratory positive pressure (IPAP) was 7.2 (95% CI: 6.0-8.3) cm H(2)O and expiratory positive pressure (EPAP) was 3.5 (95% CI: 3.2-3.9) cm of H(2)O. Mean duration of NIV was 18.5 (95% CI: 8.6-28.4) days. IPAP and EPAP levels were closely and significantly correlated with height (IPAP: r = .65, P = .016; EPAP: r = .77, P = .004). A total of 13 patients recovered and 2 patients died. However, no patient died of respiratory complications. In conclusion, NIV is effective in pediatric patients undergoing liver transplantation with subsequent pulmonary complications. The IPAP and EPAP levels may be predicted by the height of the patient.
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Affiliation(s)
- Kazuo Chin
- Department of Physical Therapeutics, Kyoto University Hospital, Kyoto 606-8507, Japan.
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Nakamura T, Chin K, Hosokawa R, Takahashi K, Sumi K, Ohi M, Mishima M. Corrected QT Dispersion and Cardiac Sympathetic Function in Patients With Obstructive Sleep Apnea-Hypopnea Syndrome. Chest 2004; 125:2107-14. [PMID: 15189929 DOI: 10.1378/chest.125.6.2107] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
STUDY OBJECTIVES Hypoxemia increases corrected QT dispersion (QTcD), which is the difference between the maximum and minimum QT intervals and is a strong risk factor for cardiovascular mortality. The aim of this study was to investigate the QTcD in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS), and the relationship between the QTcD and (123)I-metaiodobenzylguanidine (MIBG) cardiac imaging, which reflects cardiac sympathetic activity. SETTING A university hospital. PATIENTS Forty-eight OSAHS patients without cardiac diseases (mean [+/- SD] age, 45.9 +/- 10.8 years; apnea-hypopnea index [AHI] 51.9 +/- 18.5 events per hour) who underwent polysomnography before treatment and on the first night of nasal continuous positive airway pressure (nCPAP) treatment. METHODS Before and after nCPAP treatment was started, we measured the QTcD with computer software, before, during, and after sleep, as well as the washout rate of the MIBG administered for cardiac imaging. As a control, QTcD was also measured in the morning from 26 healthy subjects. RESULTS Before treatment, the mean QTcD during sleep (65.0 +/- 14.6 ms) was greater than that before sleep (57.0 +/- 13.5 ms; p < 0.0001). Meanwhile, after 1 night of nCPAP therapy, the QTcD during sleep (50.6 +/- 11.4 ms) decreased from that before treatment (p < 0.0001) and was smaller than the QTcD before sleep (56.2 +/- 13.3 ms; p = 0.003). Before treatment, the QTcD during sleep correlated with the AHI (r = 0.38; p = 0.009) and the percentage of time that SaO(2) was < 90% (SaO(2) < 90% time) [r = 0.34; p = 0.018]. The QTcD did not correlate with the body mass index or the washout rate of MIBG. However, the washout rate of MIBG correlated with the AHI and the SaO(2) < 90% time. CONCLUSIONS Nocturnal QTcD is increased in OSAHS patients but is decreased by nCPAP therapy independently of cardiac sympathetic function.
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Affiliation(s)
- Takaya Nakamura
- Department of Respiratory Medicine, Kyoto University Hospital, Kyoto University, Kyoto, Japan
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Chin K, Fukuhara S, Takahashi K, Sumi K, Nakamura T, Matsumoto H, Niimi A, Hattori N, Mishima M, Nakamura T. Response shift in perception of sleepiness in obstructive sleep apnea-hypopnea syndrome before and after treatment with nasal CPAP. Sleep 2004; 27:490-3. [PMID: 15164904] [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: 04/29/2023] Open
Abstract
STUDY OBJECTIVES After nasal continuous positive airway pressure (nCPAP) treatment, several symptoms such as hypersomnolence, daytime fatigue, and impaired concentration improve in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS). A variability of perception of pretreatment sleepiness (response-shift phenomenon) experienced in OSAHS patients before and after nCPAP treatment may reflect informative shifts in an individual's internal standards, in values and priorities, or in the conceptualization of perceived sleepiness. The objective of this study is to determine whether there is a response shift in perceptions of pretreatment sleepiness before and after nCPAP treatment in patients with OSAHS. We investigated the response shift in Epworth Sleepiness Scale scores before and after nCPAP. DESIGN Thirty-one consecutive OSAHS patients filled out the subjective ESS before nCPAP treatment (Pre-ESS). After a mean of about 10 months of nCPAP treatment, the patients filled out the ESS again, which was designated as the Post-ESS. Then they were asked to complete the scale again, recalling sleepiness before nCPAP treatment (Response Shift-Pre-ESS). The control group consisted of 11 patients with OSAHS who had not yet received nCPAP treatments and were matched for age, body mass index, and respiratory disturbance index. SETTING University Hospital in, Japan. INTERVENTIONS N/A. MEASUREMENTS AND RESULTS There was a significant response shift in ESS scores before and after nCPAP treatment (Pre-ESS: 8.5 [95% Confidence interval [CI], 7.1-9.9] vs Response Shift-Pre-ESS: 11.1 [95% CI, 9.5-12.8], P < .002). A significant number of patients (P < .02) had not recognized the degree of sleepiness experienced before treatment until after they had received nCPAP treatment. Eight had pretreatment ESS scores > or = 11 and 18 had posttreatment ESS scores > or = 11 on the Response Shift-Pre-ESS. In the control group, ESS did not change significantly from the first to the second testing performed before nCPAP treatment (first ESS, 8.8 [95% CI, 5.3-12.3]; second ESS, 8.3 [95% CI, 4.7-11.8]: P = .95). CONCLUSIONS Response shifts should be taken into consideration when explaining factors underlying individual differences in susceptibility to daytime sleepiness.
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Affiliation(s)
- Kazuo Chin
- Department of Physical Therapeutics, Kyoto University Hospital, Kyoto, Japan.
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Miyoshi A, Kitajima Y, Sumi K, Sato K, Hagiwara A, Koga Y, Miyazaki K. Snail and SIP1 increase cancer invasion by upregulating MMP family in hepatocellular carcinoma cells. Br J Cancer 2004; 90:1265-73. [PMID: 15026811 PMCID: PMC2409652 DOI: 10.1038/sj.bjc.6601685] [Citation(s) in RCA: 219] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Loss of E-cadherin (E-cad) triggers invasion, metastasis, and dedifferentiation in various epithelial carcinomas. Recently, it has been reported that two transcription factors, Snail and SIP1 (Smad interacting protein 1), directly repress transcription of the E-cad gene by binding E-box on E-cad promoter. Our aim is to solve the molecular mechanism of Snail and SIP1 in hepatocellular carcinoma (HCC). We first showed an inverse correlation between E-cad and Snail/SIP 1 expression among five HCC lines with different phenotypes. The result indicated that undifferentiated, but not differentiated type expressed Snail/SIP1. Then, we established transfectants stably expressing Snail and SIP1 in two differentiated cells with E-cad expression. Suppressed expression of E-cad, morphologic change into fibroblastoid feature, and remarkable acceleration of invasion activity were observed in the transfectants. In reverse transcription–polymerase chain reaction series of genes relating to motility and invasion, we demonstrated striking evidence that matrix metalloproteinase (MMP-1), MMP-2, MMP-7, and MT1-MMP expressions were strongly upregulated by Snail. On the other hand, MMP-1, MMP-2, and MT1-MMP expressions were enhanced by SIP1 transfection, however, the intensity was weaker than that in Snail transfection. In conclusion, Snail or SIP1 expression may be induced during HCC progression, where Snail/SIP1 directly represses E-cad gene transcription and activates cancer invasion via the upregulation of the MMP gene family.
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Affiliation(s)
- A Miyoshi
- Department of Surgery, Saga Medical School, Nabeshima 5-1-1, Saga 849-8501, Japan
| | - Y Kitajima
- Department of Surgery, Saga Medical School, Nabeshima 5-1-1, Saga 849-8501, Japan
| | - K Sumi
- Department of Surgery, Saga Medical School, Nabeshima 5-1-1, Saga 849-8501, Japan
| | - K Sato
- Department of Surgery, Saga Medical School, Nabeshima 5-1-1, Saga 849-8501, Japan
| | - A Hagiwara
- Department of Surgery, Saga Medical School, Nabeshima 5-1-1, Saga 849-8501, Japan
| | - Y Koga
- Department of Surgery, Saga Medical School, Nabeshima 5-1-1, Saga 849-8501, Japan
| | - K Miyazaki
- Department of Surgery, Saga Medical School, Nabeshima 5-1-1, Saga 849-8501, Japan
- Department of Surgery, Saga Medical School, Nabeshima 5-1-1, Saga 849-8501, Japan. E-mail:
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Yokozeki H, Wu MH, Sumi K, Igawa K, Miyazaki Y, Katayama I, Takeda K, Akira S, Nishioka K. Th2 cytokines, IgE and mast cells play a crucial role in the induction of para-phenylenediamine-induced contact hypersensitivity in mice. Clin Exp Immunol 2003; 132:385-92. [PMID: 12780683 PMCID: PMC1808736 DOI: 10.1046/j.1365-2249.2003.02164.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We previously reported the establishment of a mouse model system of contact hypersensitivity (CHS) to paraphenylemediamine (PPD). In order to analyse the functional contribution of Th2 cytokines, IL-4 and IL-5, in PPD induced CHS, STAT6 deficient (STAT6-/-) and wild-type control (WT) mice (C57BL/6) were immunized by the topical application of a PPD solution, and then the subsequent skin reactions were examined. Ear swelling was significantly reduced with a delayed peak response in STAT6-/- mice as compared with that of WT mice. A histological analysis showed the infiltration of both eosinophils and neutrophils in the skin of STAT6-/- mice challenged 24 h previously to significantly decrease in comparison with that in the WT mice. The expression of Th2 cytokines (IL-4, IL-5) by ELISA in the PPD-challenged skin tissue specimens as well as the IgE and IgG1 response after challenge were also profoundly reduced in the STAT6-/- mice. The adoptive transfer of the serum obtained from sensitized WT mice for the putative IgE transfer induced a peak response at 3 h and 24 h after challenge. To further investigate the role of mast cells in the induction of PPD-CHS, mast cell deficient W/Wv mice were sensitized with PPD and then were challenged. Maximal ear swelling was detected from 12 to 24 h and another small peak response was observed at 1 h in+/+mice, whereas only a small peak response at 24 h was detected in W/Wv mice. These data indicate that not only Th2 cytokines and IgE but also mast cells play an essential role in the induction of PPD-CHS.
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Affiliation(s)
- H Yokozeki
- Department of Dermatology and Immunodermatology, Tokyo Medical and Dental University, Japan.
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Chin K, Nakamura T, Takahashi K, Sumi K, Ogawa Y, Masuzaki H, Muro S, Hattori N, Matsumoto H, Niimi A, Chiba T, Nakao K, Mishima M, Ohi M, Nakamura T. Effects of obstructive sleep apnea syndrome on serum aminotransferase levels in obese patients. Am J Med 2003; 114:370-6. [PMID: 12714126 DOI: 10.1016/s0002-9343(02)01570-x] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.5] [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: 12/17/2022]
Abstract
PURPOSE Obesity has been associated with obstructive sleep apnea and hepatic steatosis. We investigated the effects of obstructive sleep apnea and treatment with nasal continuous positive airway pressure (CPAP) on serum aminotransferase levels in obese patients. METHODS We studied 40 obese men with obstructive sleep apnea syndrome. None had hepatitis B antigen or C antibody, autoimmune disease, or an excessive intake of alcohol. Serum levels of aspartate aminotransferase, alanine aminotransferase, triglyceride, glucose, insulin, and leptin were determined in the afternoon and in the morning immediately after sleep, before and after nasal CPAP treatment. RESULTS Aminotransferase levels were abnormal in 35% (n = 14) of patients. Before treatment, mean (+/- SD) aspartate aminotransferase levels were higher in the morning than in the previous afternoon (presleep, 34 +/- 20 IU/L; postsleep, 39 +/- 28 IU/L; P = 0.006). The overnight mean increases in aminotransferase levels were less marked after the first night of nasal CPAP treatment (aspartate aminotransferase: from 6 +/- 11 IU/L to 2 +/- 6 IU/L, P = 0.0003; alanine aminotransferase: from 5 +/- 9 IU/L to 2 +/- 6 IU/L, P = 0.006). Leptin levels (n = 23) decreased significantly after treatment (P = 0.0002), whereas insulin resistance (calculated by the homeostasis model assessment method) and triglyceride levels were unchanged. Improvements in aspartate and alanine aminotransferase levels were maintained after 1 and 6 months of nasal CPAP treatment. CONCLUSION Nasal CPAP therapy may have beneficial effects on serum aminotransferase abnormalities in obese patients who have obstructive sleep apnea.
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Affiliation(s)
- Kazuo Chin
- Department of Physical Therapeutics, Kyoto University Hospital, Kyoto, Japan.
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Tanaka T, Iwasaki S, Asaba H, Hamura H, Mitsuhiro W, Tachibana K, Watanabe Y, Uchiyama Y, Sumi K, Magoori K, Ioka R, Doi T, Naito M, Auwerx J, Hamakubo T, Sakai J, Kodama T. 3P-0708 PPARδ agonist ameliorates obesity and insulin resistance through coordinate regulation of fatty acid metabolism in skeletal muscle. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90927-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Navarro RR, Tatsumi K, Sumi K, Matsumura M. Role of anions on heavy metal sorption of a cellulose modified with poly(glycidyl methacrylate) and polyethyleneimine. Water Res 2001; 35:2724-2730. [PMID: 11456172 DOI: 10.1016/s0043-1354(00)00546-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The influence of anions on the equilibrium and kinetic uptake of heavy metals from an aqueous solution by a novel nitrogen-type chelating adsorbent was evaluated. Equilibrium experiments revealed that stoichiometric amounts of metals and anions are adsorbed by the resin. Kinetic studies showed that during the initial stage of adsorption, the anions are adsorbed by the adsorbent prior to the metal ions. This occurred almost simultaneously with an increase in solution pH. At equilibrium, the pH returned towards its initial value. The concentration of anion also fluctuated during the entire equilibration process. Following these observations, mechanisms governing the role of anions on enhancing capacity and rate of metal uptake of this type of chelating adsorbent type were established.
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Affiliation(s)
- R R Navarro
- Hydrospheric Environmental Protection Department, National Institute for Resources and Environment, Tsukuba-shi, Ibaraki, Japan
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40
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Michimukai E, Kitamura N, Zhang Y, Wang H, Hiraishi Y, Sumi K, Hayashido Y, Toratani S, Okamoto T. Mutations in the human homologue of the Drosophila segment polarity gene patched in oral squamous cell carcinoma cell lines. In Vitro Cell Dev Biol Anim 2001; 37:459-64. [PMID: 11573822 DOI: 10.1290/1071-2690(2001)037<0459:mithho>2.0.co;2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In the present study, we have analyzed tumor deoxyribonucleic acid from oral squamous cell carcinoma (OSCC) cells for patched mutations using an exon-by-exon single strand conformation polymorphism assay and direct sequencing. We found two missense mutations which affected the conserved residue in the transmembrane domains of the gene product and in the intracellular loop at the C-terminal residue implicated in regulating the smoothened molecule. In addition, we demonstrated that the N-terminal fragment of sonic hedgehog (Shh-N) stimulates the growth of normal epithelial cells, the OSCC cell line, NA, and the salivary gland adenocarcinoma cell lines, HSG and HSY, which have no detectable mutation in patched. On the other hand, Shh has no effect on human SCC cells (UE, KA, KO, NI, A431 cells) that have mutations in patched. These results strongly suggest that an Shh-patched signaling is involved in the cell growth of oral epithelial cells and in the tumorigenesis of OSCCs.
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Affiliation(s)
- E Michimukai
- Department of Molecular Oral Medicine & Maxillofacial Surgery 1, Hiroshima University Faculty of Dentistry, Japan
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Abstract
The relations among self-report scores for Type A behavior with social support and sex were examined in 239 female and 213 male Japanese college students. Scores on Type A behavior were inversely correlated with those for social support for both women and men separately. There were no significant differences in the magnitudes of these coefficients for women and men.
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Affiliation(s)
- K Sumi
- Department of Systems Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan.
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Rai SK, Matsumura T, Ono K, Abe A, Hirai K, Rai G, Sumi K, Kubota K, Uga S, Shrestha HG. High Toxoplasma seroprevalence associated with meat eating habits of locals in Nepal. Asia Pac J Public Health 2001; 11:89-93. [PMID: 11195164 DOI: 10.1177/101053959901100207] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A serosurvey of Toxoplasma gondii infection in apparently healthy subjects (n = 404) living in Achham (n = 215) and Dang (n = 189) districts in western Nepal was carried out. An interview with 249 participants, each representing a household, was also conducted. This interview pertained to their meat eating habits and the keeping of cats in their houses. Toxoplasma antibodies were detected by using the microlatex agglutination test. The overall seroprevalence was 65.3% with no significant difference in the two districts (Achham: 66.9% and Dang: 63.5%) included (p = 0.546). Females and the Indo-Aryan ethnic-group showed marginally higher prevalence compared with their male (p = 0.545) and Tibeto-Burman (p = 0.075) counterparts. The majority of the infections was found to have occurred during childhood. The frequency of meat eating in western and eastern regions differed greatly (p = 0.000) with the people in the eastern region being frequent meat eaters than those in the western region. About one-third of the subjects, all Indo-Aryans, in the western region had the raw meat eating habit but none in the eastern region. Approximately 7.0% of households in both western and eastern regions kept cats. The present findings demonstrated a typical role of meat eating habits of people in the high Toxoplasma seroprevalence in Nepal.
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Affiliation(s)
- S K Rai
- Department of Medical Zoology, Kobe University School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.
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Abstract
The present study examined the relationship between self-report scores of neurotic perfectionism and of perceived stress and self-esteem 6 wk. later among 146 Japanese male college students. Hierarchical regression analysis indicated that scores for neurotic perfectionism accounted for statistically significant but functionally small variance (4% and 3%) in scores for perceived stress and self-esteem obtained at Time 2 (6 wk. later), after controlling for the scores for perceived stress and self-esteem at Time 1, respectively.
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Affiliation(s)
- K Sumi
- Department of Systems Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
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Yamaguchi N, Togari H, Takase M, Hattori S, Yamanami S, Hasegawa H, Hoshino R, Tamura M, Mimura S, Suzuki S, Futamura M, Aotani H, Sumi K, Kusuda S, Ichiba H, Yong-Kye L, Uetani Y, Nakao H, Higuchi R. A prospective clinical study on inhaled nitric oxide therapy for neonates in Japan. Pediatr Int 2001; 43:20-5. [PMID: 11207994 DOI: 10.1046/j.1442-200x.2001.01334.x] [Citation(s) in RCA: 9] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND This is the first report about a prospective clinical investigation to study the efficacy and safety of nitric oxide (NO) inhalation in infants with persistent pulmonary hypertension of the newborn (PPHN) in Japan. METHODS Patients in the present study had to meet the following entry criteria: (i) they had to be younger than 7 days of age; (ii) they had to have evidence of PPHN as defined by echocardiograph; (iii) they had to have severe systemic hypoxemia under mechanical ventilation at 100% oxygen supplementation; and (iv) they had to have a failure to respond to conventional therapies. Patients were excluded from this trial if they had any of the following: hypoplastic lung, structural cardiac lesions or severe multiple anomalies. RESULTS Nitric oxide inhalation therapy was performed in 68 infants who had severe PPHN at 18 hospitals between May 1995 and May 1997. At birth, 21 of 68 infants (31%) weighed less than 1,500 g and 39 infants weighed more than 2,500 g. The diagnoses associated with PPHN were as follows: 27 infants had meconium aspiration syndrome, 15 infants had dry lung syndrome, nine infants had congenital diaphragmatic hernia, six infants had respiratory distress syndrome, three infants had pneumonia and eight infants had other diagnoses. The mean oxygenation index (OI) before NO inhalation therapy in 68 infants was 43.2; 55 infants (81%) had good responses. CONCLUSIONS These results may be valuable for further randomized controlled and double-blind trials in Japan to evaluate whether NO inhalation therapy is more effective than conventional therapy in infants with severe PPHN.
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Affiliation(s)
- N Yamaguchi
- Department of Pediatrics, Nagoya City University Medical School, Nagoya, Japan.
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Abstract
The authors present a pair of identical twins with congenital diaphragmatic hernia (CDH) diagnosed prenatally, who underwent successful surgical repair. They were diagnosed as having CDH at 32 weeks' gestation and showed respiratory distress soon after cesarean section at 33 weeks' gestation. Both survived after scheduled perinatal management followed by surgery, for which the prenatal diagnosis of CDH was valuable.
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MESH Headings
- Cesarean Section
- Female
- Fetal Diseases/diagnosis
- Gestational Age
- Hernia, Diaphragmatic/diagnosis
- Hernia, Diaphragmatic/diagnostic imaging
- Hernia, Diaphragmatic/surgery
- Hernias, Diaphragmatic, Congenital
- Humans
- Infant, Newborn
- Infant, Newborn, Diseases/diagnosis
- Infant, Premature
- Pre-Eclampsia/complications
- Pregnancy
- Treatment Outcome
- Twins, Monozygotic
- Ultrasonography, Prenatal
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Affiliation(s)
- Y Tazuke
- Department of Pediatric Surgery, Osaka Medical Center for Maternal and Child Health and Research Institute, Izumi-city, Japan
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Abstract
A 9-year-old male with congenital bilateral perisylvian syndrome is described. He had pseudobulbar palsy, mental retardation, and intractable epilepsy. Computed tomography and magnetic resonance images of the brain demonstrated bilateral perisylvian malformations and a diffuse pachygyric appearance. At 8 years of age, he had episodes of excessive drooling, fluctuating impairment of consciousness, unsteady sitting, and frequent head drop that lasted several days. The electroencephalogram demonstrated continuous diffuse slow spike and waves. These findings suggested atypical absence status epilepticus. Intravenous administration of diazepam resulted in transient improvement of clinical and electroencephalographic findings. Status epilepticus recurred within several minutes after diazepam administration. Although no patient has been reported to have a history of status epilepticus among those affected by this syndrome, it seems that atypical absence status can occur more frequently than expected, as seen in Lennox-Gastaut syndrome. After recognition and confirmation of nonconvulsive status epilepticus, immediate treatment must be attempted.
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Affiliation(s)
- T Tagawa
- Department of Pediatrics, Osaka Kouseinenkin Hospital, Japan
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Yagura T, Sumi K. Molecular cloning and sequencing of cDNAs encoding homologues of human Ku70 and Ku80 autoantigen from Xenopus and their expression in various Xenopus tissues. Biochim Biophys Acta 1999; 1445:160-4. [PMID: 10209269 DOI: 10.1016/s0167-4781(99)00028-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We isolated cDNA clones encoding Ku70 and Ku80 homologues of Xenopus laevis from a cDNA library prepared from Xenopus oocytes. The nucleotide sequences of these Ku70 and Ku80 homologues have coding sequences of 1833 bp and a 611 aa protein, and 2178 bp and a 726 aa protein, respectively. The amino acid sequences deduced from the open reading frame of the Ku70 and Ku80 cDNA clones were highly homologous to those from Ku genes previously isolated, such as human (ca. 65% and ca. 62% identity, respectively) and mouse (ca. 65% and ca. 60%), and show a certain degree of homology to Drosophila (ca. 27% with Ku70), Caenorhabditis elegans (ca. 20% with Ku80) and Saccharomyces cerevisiae (ca. 23% and ca. 19%). Our detailed comparison of the predicted amino acid sequences among these species revealed the highly conserved octa-peptide LPFXXDIR common to both Xenopus Ku70 and Ku80 homologues in the region showing the high homology throughout the species tested. A Northern analysis using specific cDNA probes showed that Ku poly(A)+ mRNAs are expressed at high levels in Xenopus adult oocyte and testis.
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Affiliation(s)
- T Yagura
- Laboratory of Life Science, Department of Chemistry, Faculty of Science, Kwansei Gakuin University, Nishinomiya-shi, Hyogo 662-8501, Japan.
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Abstract
In anovulatory patients ovulation is usually induced by clomiphene citrate (CC) or gonadotropin therapy, but in the case of polycystic ovary syndrome (PCOS), diagnosed by the presence of several micropolycysts in the ovaries and a high LH/FSH ratio in the serum, CC is only minimally effective, and side effects are often a problem with gonadotropin therapy. In the present study we administered a Chinese herbal medicine Sairei-to which appears to have a steroidal effect in anovulatory PCOS patients. As a result of the treatment, serum LH and the LH/FSH ratio significantly decreased (P<0.01) and the ovulatory rate was 70.6%. Serum testosterone levels were within normal limits before the treatment, and did not significantly change during the treatment. Sairei-to may therefore be useful for the treatment of anovulation in PCOS patients.
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Affiliation(s)
- A Sakai
- Department of Obstetrics and Gynecology, Nippon Kokan Hospital, Kanagawa, Japan
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49
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Rai SK, Shibata H, Sumi K, Rai G, Rai N, Manandhar R, Gurung G, Ono K, Uga S, Matsuoka A, Shrestha HG, Matsumura T. Toxoplasma antibody prevalence in Nepalese pregnant women and women with bad obstetric history. Southeast Asian J Trop Med Public Health 1998; 29:739-43. [PMID: 10772556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Sera from randomly selected 345 pregnant Nepalese women aged 16-36 years and 13 women with bad obstetric history (BOH) were tested for the presence of Toxoplasma antibodies using microlatex agglutination (MLA) and ELISA methods. The overall prevalence was 55.4% (191/345). Prevalence was slightly higher (59.0%) in older age-group (27-36 years) compared with younger age-group (16-26 years) (52.2%). No significant difference in antibody prevalence in women belonging to two different ethnic-groups (Tibeto-Burmans 57.8%, Indo-Aryans 52.7%) was observed (p>0.05). MLA antibody titer ranged from 1:16 to 1:2,048. Over three-fourth of the women showed either high (1:510 or over) or low (1:16 or 1:32) antibody titer. Three percent (6/191) of MLA antibody positive subjects had Toxoplasma IgM antibodies by IgM-ELISA. All six IgM antibody positive pregnant women had MLA antibody titer of over 1:510. Of the total 13 women with BOH, 5 (38.5%) had Toxoplasma antibodies of which 2 (40.0%) were positive for Toxoplasma-IgM antibodies.
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Affiliation(s)
- S K Rai
- Department of Medical Zoology, Faculty of Medicine Kobe University School of Medicine, Japan
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50
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Sumi K. Type A behavior, social support, stress, and physical and psychological well-being among Japanese women. Psychol Rep 1998; 83:711-7. [PMID: 9819945 DOI: 10.2466/pr0.1998.83.2.711] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The present study examined the relationships among self-report scores for Type A behavior, social support, and stress, and those for physical and psychological well-being among 152 Japanese female college students. Significant interactions were found between scores for Type A behavior and social support, indicating that individuals who report higher Type A behavior as well as higher social support tended to rate their physical and psychological well-being higher than those who reported higher Type A behavior but lower social support.
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Affiliation(s)
- K Sumi
- Department of Systems Management and Engineering, Nagoya Institute of Technology, Japan
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