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Turin TC, Kita Y, Rumana N, Nakamura Y, Takashima N, Ichikawa M, Sugihara H, Morita Y, Hirose K, Okayama A, Miura K, Ueshima H. Is there any circadian variation consequence on acute case fatality of stroke? Takashima Stroke Registry, Japan (1990-2003). Acta Neurol Scand 2012; 125:206-12. [PMID: 21615351 DOI: 10.1111/j.1600-0404.2011.01522.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Circadian periodicity in the onset of stroke has been reported. However, it is unclear whether this variation affects the acute stroke case fatality. Time of the day variation in stroke case fatality was examined using population-based stroke registration data. METHODS Stroke event data were acquired from the Takashima Stroke Registry, which covers a stable population of approximately 55,000 in Takashima County in central Japan. During the period of 1990-2003, there were 1080 (549 men and 531 women) cases with classifiable stroke onset time. Stroke incidence was categorized as occurring at night (midnight-6 a.m.), morning (6 a.m.-noon), afternoon (noon-6 p.m.), and evening (6 p.m.-midnight). The 28-day case fatality rates and 95% confidence intervals (95% CI) were calculated by gender, age, and stroke subtype across the time blocks. After adjusting for gender, age at onset, and stroke severity at onset, the hazard ratios for fatal strokes in evening, night, and morning were calculated, with afternoon serving as the reference. RESULTS For all strokes, the 28-day case fatality rate was 23.3% (95% CI:19.4-27.6) for morning onset, 16.9% (95% CI:13.1-21.6) for afternoon onset, 18.3% (95% CI:13.6-24.1) for evening onset, and 21.0% (95% CI:15.0-28.5) for the night onset stroke. The case fatality for strokes during the morning was higher than the case fatality for strokes during afternoon. This fatality risk excess for morning strokes persisted even after adjusting for age, gender, and stroke severity on onset in multivariate analysis. CONCLUSION In the examination of circadian variation of stroke case fatality, 28-day case fatality rate tended to be higher for the morning strokes.
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Shinozaki K, Oda S, Sadahiro T, Nakamura M, Watanabe E, Abe R, Nakada T, Morita Y, Nakanishi K, Kitamura N, Hirasawa H. Correlation between IL-6 and S-100B blood levels and outcome of post-cardiac arrest syndrome and influence of therapeutic hypothermia on these mediator blood levels. Crit Care 2012. [PMCID: PMC3363695 DOI: 10.1186/cc10884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Uchida S, Shioda K, Morita Y, Kubota C, Ganeko M, Takeda N. Exercise and sleep - Review and future directions. JOURNAL OF PHYSICAL FITNESS AND SPORTS MEDICINE 2012. [DOI: 10.7600/jpfsm.1.317] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Morita Y, Tajiri S, Sasaki J, Shiomi H, Oh R, Inoue T. [Impact on reproducibility of the treatment position by improving immobilization device in image guided radiation therapy]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2012; 68:254-259. [PMID: 22449901 DOI: 10.6009/jjrt.2012_jsrt_68.3.254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
UNLABELLED The immobilization device for treatment becomes important to obtain fixation and reproducibility of the treatment position. It was confirmed that reproducibility of the treatment position obtains higher accuracy by the method of using immobilization device. METHODS We divided into three terms by the methods of immobilization. An infrared reflective marker performs the setup of a position at the start of treatment, and setup of the patient in a fixed implement is performed by ExacTrac. Difference between coordinates of the immobilization device and the patient position was calculated by the vector in three directions. We estimated the position error index (PE(index)) by using the square root of the sum of square of each vectors, and evaluated the amount of differences of patient position at three terms. RESULTS Mean and standard deviation of index values were 9.53 ± 7.21, 8.50 ± 5.93, and 6.42 ± 3.80 at each three terms. With every passing year, the amount of gap and difference of the patient fixation has decreased. CONCLUSION By the improvement of the use of the immobilization device, gap and difference of fixation has decreased. Accordingly, we could obtain better accuracy of fixation.
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Ueno K, Nomura Y, Masamoto I, Masuda K, Morita Y, Eguchi T, Okamoto Y, Kawano Y. Potential Role of Autoantibody in Severe Neutropenia of a Patient with Kawasaki Syndrome. Scand J Immunol 2011; 75:120-6. [DOI: 10.1111/j.1365-3083.2011.02633.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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106
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Osaki Y, Morita Y, Kuwahara T, Miyano I, Doi Y. Prevalence of Parkinson's disease and atypical parkinsonian syndromes in a rural Japanese district. Acta Neurol Scand 2011; 124:182-7. [PMID: 20880268 DOI: 10.1111/j.1600-0404.2010.01442.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To investigate the prevalence of Parkinson's disease (PD) and atypical parkinsonian syndromes (APS) in a rural Japanese district. METHOD Collaboration with the medical institutions, the long-term care insurance system facilities, and the public health office. RESULTS The crude prevalence rates were 175 per 100,000 (95% CI: 143-206) for PD, 18 (8-28) for progressive supranuclear palsy, 17 (7-26) for multiple system atrophy (MSA), and 9 (2-16) for corticobasal degeneration. The age-adjusted prevalence rates were 109 per 100,000 (88-134), 10 (2-17), 13 (4-21), and 6 (0-12), for each condition. There was a preponderance of women with PD and of men with APS. Nine of the 116 PD patients and 7 of the 29 APS patients were newly diagnosed in this study. CONCLUSIONS There are high prevalence rates for PD and APS and suboptimal recognition of APS. This is the first epidemiological prevalence study of MSA from Japan.
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Newburn EN, Hyde TM, Ye T, Morita Y, Weinberger DR, Kleinman JE, Lipska BK. Interactions of human truncated DISC1 proteins: implications for schizophrenia. Transl Psychiatry 2011; 1:e30. [PMID: 22832604 PMCID: PMC3309510 DOI: 10.1038/tp.2011.31] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Accepted: 06/10/2011] [Indexed: 02/08/2023] Open
Abstract
Numerous genetic linkage and association reports have implicated the Disrupted-in-Schizophrenia (DISC1) gene in psychiatric illness. The Scottish family translocation, predicted to encode a C-terminus-truncated protein, suggests involvement of short isoforms in the pathophysiology of mental disorders. We recently reported complex alternative splicing patterns for the DISC1 gene and found that short isoforms are overexpressed in the brains of patients with schizophrenia and in carriers of risk-associated alleles. Investigation into the protein-protein interactions of alternative DISC1 isoforms may provide information about the functional consequences of overexpression of truncated forms in mental illness. Human embryonic kidney (HEK293) cells were transiently co-transfected with human epitope-tagged DISC1 variants and epitope-tagged NDEL1, FEZ1, GSK3β and PDE4B constructs. Co-immunoprecipitation assays demonstrated that all truncated DISC1 variants formed complexes with full-length DISC1. Short DISC1 splice variants LΔ78, LΔ3 and Esv1 showed reduced or no binding to NDEL1 and PDE4B proteins, but fully interacted with FEZ1 and GSK3β. The temporal expression pattern of GSK3β in the human postmortem tissue across the lifespan closely resembled that of the truncated DISC1 variants, suggesting the possibility of interactions between these proteins in the human brain. Our results suggest that complexes of full-length DISC1 with truncated DISC1 variants may result in cellular disturbances critical to DISC1 function.
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Tsao SKK, Toyonaga T, Morita Y, Fujita T, Hayakumo T, Azuma T. Modified fishing-line traction system in endoscopic submucosal dissection of large esophageal tumors. Endoscopy 2011; 43 Suppl 2 UCTN:E119. [PMID: 21425004 DOI: 10.1055/s-0030-1256148] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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109
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Koh MY, Morita Y, Miyazaki T, Ohtsuki C. In vitroapatite-forming ability of hydrogels derived from sodium carboxymethylcellulose. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1757-899x/18/19/192004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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110
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Morita Y, Hata K, Omata T, Morita N, Yoneda T. P141. COX-2/VEGF-C cascade is a potential therapeutic molecular target for lymph node metastases. Oral Oncol 2011. [DOI: 10.1016/j.oraloncology.2011.06.384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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111
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Morita Y, Ogawa K, Uchida S. The Delta Eeg Power Was Increased After Motor Learning. Med Sci Sports Exerc 2011. [DOI: 10.1249/01.mss.0000401367.54911.89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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112
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Morita Y, Ono A, Serizawa A, Yogo K, Ishida-Kitagawa N, Takeya T, Ogawa T. Purification and identification of lactoperoxidase in milk basic proteins as an inhibitor of osteoclastogenesis. J Dairy Sci 2011; 94:2270-9. [DOI: 10.3168/jds.2010-4039] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Accepted: 01/26/2011] [Indexed: 12/15/2022]
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Morita N, Morita Y, Taenaka Y, Kimoto N, Ogawa H, Oomata T. Two cases of single-stage lip and nostril reconstruction in holoprosencephaly. Int J Oral Maxillofac Surg 2011; 40:862-5. [PMID: 21470822 DOI: 10.1016/j.ijom.2011.02.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2010] [Revised: 01/13/2011] [Accepted: 02/22/2011] [Indexed: 10/18/2022]
Abstract
Holoprosencephaly is a rare disorder of embryological development that presents with midline clefting of the lip. The incidence has been estimated at approximately 1 in 15,000. Previously, infants with severe holoprosencephaly were thought to die within 1-2 years of birth and seldom to benefit from surgery. Survival has increased with improved perinatal care and support services. Parents often request complete cheiloplasty, because the presence of a columella greatly influences aesthetic outcome. The authors report two cases of simultaneous columella reconstruction with cheiloplasty.
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Tanaka K, Goto T, Miyazaki T, Morita Y, Kobayashi S, Takahashi T. Apatite-coated Hyaluronan for Bone Regeneration. J Dent Res 2011; 90:906-11. [DOI: 10.1177/0022034511404070] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The materials for the repair of bone defects require bone-inductive and bioabsorbable properties. We developed an apatite-coated hyaluronan (ACH) as a bone-regeneration material. To examine the initial behavior of osteoblast-like cells on ACH and its bone-inductive activity, we evaluated the proliferation and differentiation of osteoblast-like cells grown on ACH in vitro, and examined the effect of ACH on bone regeneration in vivo, comparing these with the effects of an atelocollagen sponge (AS). Hyaluronic acid, cross-linked by divinylsulfone, was freeze-dried and formed apatite in simulated body fluid. MC3T3-E1 osteoblast-like cells were cultured on ACH and AS. Alkaline phosphatase activity and osteocalcin mRNA expression increased more in cells grown on ACH than in those grown on AS. In vivo, round defects were created in rat crania and either filled with ACH or AS or left unfilled (sham group). After surgery, the ACH-treated group showed higher levels of bone formation than the other groups. These findings demonstrate that ACH is more effective than AS in promoting in vitro osteoblast-like cell differentiation and bone formation during the repair of bone defects in vivo, indicating that it may be of use in the treatment of various bone defects.
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Kubota M, Yamaguchi I, Okada K, Morita Y, Nakano K, Nakamura H. Partitioning of High-Level Waste as Pretreatment in Waste Management. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-26-551] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTRemoval of the long-lived radionuclides from high-level waste (HLW) is a potential means not only for making wastes more acceptable in terms of long term hazards, but also for alleviating storage requirement. From these points, the authors are developing a method of partitioning actinides, Sr-90 and Cs-137 from HLW. A chemical flow-sheet has been constructed and experiments with actual HLW were initiated in 1982. Through the partitioning, active elements in HLW can be fractionated into 3 groups. Total volume of the solid materials of the 3 groups was calculated and found to be reduced to less than one-third of the volume of the vitrified material containing 10 wt% of fission products as oxide. Such volume reduction seems to facilitate the long term storage or the deep geological disposal of HLW.
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Inoue Y, Shimojo N, Suzuki Y, Nakano T, Morita Y, Arima T, Tomiita M, Kohno Y. Serum Levels of Human Chitinase-like Protein YKL-39 was Lower in Childhood Asthma. J Allergy Clin Immunol 2011. [DOI: 10.1016/j.jaci.2010.12.260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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117
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Tanaka S, Toyonaga T, East J, Obata D, Fujiwara S, Wakahara C, Masuda A, Man-i M, Morita Y, Sanuki T, Fujita T, Yoshida M, Kutsumi H, Azuma T. Endoscopic retrieval method using a small grip-seal plastic bag for large colorectal resection specimens after endoscopic submucosal dissection. Endoscopy 2010; 42 Suppl 2:E186-7. [PMID: 20680918 DOI: 10.1055/s-0029-1244168] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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118
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Chayama K, Morita Y, Iwatsuki S. Thermosensitive gels incorporating polythioether units for the selective extraction of class b metal ions. J Chromatogr A 2010; 1217:6785-90. [DOI: 10.1016/j.chroma.2010.07.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 07/04/2010] [Accepted: 07/09/2010] [Indexed: 11/28/2022]
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119
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Morita Y, Kuroda A, Iwata T, Owari M. The effect of shave-off scanning at a fabricated section by focused ion beam. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3622] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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120
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Toyonaga T, Man-I M, Fujita T, Nishino E, Ono W, Morita Y, Sanuki T, Masuda A, Yoshida M, Kutsumi H, Inokuchi H, Azuma T. The performance of a novel ball-tipped Flush knife for endoscopic submucosal dissection: a case-control study. Aliment Pharmacol Ther 2010. [PMID: 20839389 DOI: 10.1111/j.1365- 2036.2010.04425.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Endoscopic submucosal dissection (ESD) using short needle knives is safe and effective, but bleeding is a problem due to low haemostatic capability. AIM To assess the performance of a novel ball-tipped needle knife (Flush knife-BT) for ESD with particular emphasis on haemostasis. METHODS A case-control study to compare the performance for ESD of 30 pairs of consecutive early gastrointestinal lesions (oesophagus: 12, stomach: 32, colorectum: 16) with standard Flush knife (F) vs. Flush knife-BT (BT). Primary outcome was efficacy of intraprocedure haemostasis. Secondary outcomes included procedure time, procedure speed (dividing procedure time into the area of resected specimen), en bloc resection rate and recurrence rate. RESULTS Median intraoperative bleeding points and bleeding points requiring haemostatic forceps were smaller in the BT group than in the F group (4 vs. 8, P < 0.0001, 0 vs. 3, P < 0.0001). There was no difference between groups for procedure time; however, procedure speed was shorter in the BT group (P = 0.0078). En bloc and en bloc R0 resection rates were 100%, with no perforation or post-operative bleeding. No recurrence was observed in either group at follow-up 1 year postprocedure. CONCLUSIONS Ball-tipped Flush knife (Flush knife-BT) appears to improve haemostatic efficacy and dissection speed compared with standard Flush knife.
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Toyonaga T, Man-I M, Fujita T, Nishino E, Ono W, Morita Y, Sanuki T, Masuda A, Yoshida M, Kutsumi H, Inokuchi H, Azuma T. The performance of a novel ball-tipped Flush knife for endoscopic submucosal dissection: a case-control study. Aliment Pharmacol Ther 2010; 32:908-15. [PMID: 20839389 DOI: 10.1111/j.1365-2036.2010.04425.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Endoscopic submucosal dissection (ESD) using short needle knives is safe and effective, but bleeding is a problem due to low haemostatic capability. AIM To assess the performance of a novel ball-tipped needle knife (Flush knife-BT) for ESD with particular emphasis on haemostasis. METHODS A case-control study to compare the performance for ESD of 30 pairs of consecutive early gastrointestinal lesions (oesophagus: 12, stomach: 32, colorectum: 16) with standard Flush knife (F) vs. Flush knife-BT (BT). Primary outcome was efficacy of intraprocedure haemostasis. Secondary outcomes included procedure time, procedure speed (dividing procedure time into the area of resected specimen), en bloc resection rate and recurrence rate. RESULTS Median intraoperative bleeding points and bleeding points requiring haemostatic forceps were smaller in the BT group than in the F group (4 vs. 8, P < 0.0001, 0 vs. 3, P < 0.0001). There was no difference between groups for procedure time; however, procedure speed was shorter in the BT group (P = 0.0078). En bloc and en bloc R0 resection rates were 100%, with no perforation or post-operative bleeding. No recurrence was observed in either group at follow-up 1 year postprocedure. CONCLUSIONS Ball-tipped Flush knife (Flush knife-BT) appears to improve haemostatic efficacy and dissection speed compared with standard Flush knife.
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Abakushina EV, Morita Y, Kaedei Y, Tanihara F, Namula Z, Viet VL, Otoi T. Formation of an antral follicle-like structure of bovine cumulus-oocyte complexes embedded individually or in groups in collagen gels. Reprod Domest Anim 2010; 46:423-7. [PMID: 20723136 DOI: 10.1111/j.1439-0531.2010.01684.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Culture techniques of antral follicle-like structure (AFLS) derived from cumulus-oocyte complexes (COCs) might provide important insights into follicular development and oocyte maturation. This study was undertaken to investigate the effects of embedding bovine COCs individually (one COC) or in groups (4-5 COCs) in collagen gels on the formation of AFLS and the meiotic status of oocytes. The observations of AFLS formation were performed every second day for 14 days. The AFLS was formed at Day 2 or 4 after the start of culture (Day=0), irrespective of the culture methods. The mean diameters of AFLS during Days 4-14 using the individual culture method were significantly higher (p<0.05) than those using the group culture method. However, the AFLS formation rate in the individual culture method was significantly lower compared to that in the group culture method (26.1% vs 62.7%, p<0.01). Almost all oocytes had undergone the germinal vesicle breakdown stage, irrespective of the culture method or AFLS formation. In conclusion, comparison with the individual culture method revealed that the mean diameters of AFLS in the group culture method were smaller, but more COCs formed AFLS. The group culture method might be useful for evaluating the various hypotheses of follicular formation and interfollicular communication. However, improvement of the group culture system is necessary to prevent the meiotic resumption of oocytes, because the AFLS formation is dependent on the cumulus/granulosa cells surrounding oocytes.
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Tsuchida T, Muto M, Minashi K, Ono H, Morita Y, Ishihara R, Toshiro I, Kawai H, Boku N, Fukuda H. A phase II trial of combined treatment of endoscopic mucosal resection (EMR) and chemoradiotherapy (CRT) for clinical stage I esophageal squamous cell carcinoma (ESCC): Japan Clinical Oncology Group study JCOG0508. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.tps204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Tanaka S, Nishiumi S, Nishida M, Mizushina Y, Kobayashi K, Masuda A, Fujita T, Morita Y, Mizuno S, Kutsumi H, Azuma T, Yoshida M. Vitamin K3 attenuates lipopolysaccharide-induced acute lung injury through inhibition of nuclear factor-kappaB activation. Clin Exp Immunol 2010; 160:283-92. [PMID: 20030669 PMCID: PMC2857952 DOI: 10.1111/j.1365-2249.2009.04083.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2009] [Indexed: 01/19/2023] Open
Abstract
Vitamin K is a family of fat-soluble compounds including phylloquinone (vitamin K1), menaquinone (vitamin K2) and menadione (vitamin K3). Recently, it was reported that vitamin K, especially vitamins K1 and K2, exerts a variety of biological effects, and these compounds are expected to be candidates for therapeutic agents against various diseases. In this study, we investigated the anti-inflammatory effects of vitamin K3 in in vitro cultured cell experiments and in vivo animal experiments. In human embryonic kidney (HEK)293 cells, vitamin K3 inhibited the tumour necrosis factor (TNF)-alpha-evoked translocation of nuclear factor (NF)-kappaB into the nucleus, although vitamins K1 and K2 did not. Vitamin K3 also suppressed the lipopolysaccharide (LPS)-induced nuclear translocation of NF-kappaB and production of TNF-alpha in mouse macrophage RAW264.7 cells. Moreover, the addition of vitamin K3 before and after LPS administration attenuated the severity of lung injury in an animal model of acute lung injury/acute respiratory distress syndrome (ARDS), which occurs in the setting of acute severe illness complicated by systemic inflammation. In the ARDS model, vitamin K3 also suppressed the LPS-induced increase in the serum TNF-alpha level and inhibited the LPS-evoked nuclear translocation of NF-kappaB in lung tissue. Despite marked efforts, little therapeutic progress has been made, and the mortality rate of ARDS remains high. Vitamin K3 may be an effective therapeutic strategy against acute lung injury including ARDS.
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Nagashima S, Morita Y, Miyazaki T, Ishida E, Tanaka K, Goto T. Fabrication of Apatite-Hyaluronic Acid Hybrids. ACTA ACUST UNITED AC 2010. [DOI: 10.4303/bda/d110117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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