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Ochiai S, Miyata Y, Nagao S, Yamamoto M, Murakami T, Nishimura S, Itono T, Suzuki T, Hamataka K, Kawano Y, Hamajima Y, Kashiwaya K. Accumulation of accident-derived radiocesium in lake and coastal sediments at 300-700 km distance from Fukushima area. RADIATION PROTECTION DOSIMETRY 2015; 167:365-369. [PMID: 25953793 DOI: 10.1093/rpd/ncv280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The accumulation of accident-derived radiocesium was investigated in nine water bodies located 300-700 km from the Fukushima Dai-ichi Nuclear Power Plant (FDNPP). (134)Cs from the accident was detected in surface sediment of five water bodies. The (134)Cs concentration, corrected to the time of the accident in 2011, was generally lower than that of (137)Cs, and its spatial pattern does not fully correspond to that of (137)Cs. These results suggest that radiocesium derived from both FDNPP and past global fallout can be separately observed and that the contributions of both sources are non-uniform within these sites. The (134)Cs inventory in surface sediments is smaller than its deposition, suggesting that almost all deposited (134)Cs remains within the catchment and/or a part has been discharged from the saline and brackish water bodies.
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Kudo K, Muramatsu H, Yoshida N, Kobayashi R, Yabe H, Tabuchi K, Kato K, Koh K, Takahashi Y, Hashii Y, Kawano Y, Inoue M, Cho Y, Sakamaki H, Kawa K, Kato K, Suzuki R, Kojima S. Second allogeneic hematopoietic stem cell transplantation in children with severe aplastic anemia. Bone Marrow Transplant 2015; 50:1312-5. [PMID: 26121106 DOI: 10.1038/bmt.2015.153] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 04/27/2015] [Accepted: 05/15/2015] [Indexed: 11/09/2022]
Abstract
The outcome of 55 children with severe aplastic anemia (SAA) who received a second hematopoietic stem cell transplantation (HSCT) was retrospectively analyzed using the registration data of the Japanese Society for Hematopoietic Cell Transplantation. The 5-year overall survival (OS) and failure-free survival (FFS) after the second transplantation were 82.9% (95% confidence interval (CI), 69.7-90.8)) and 81.2% (95% CI, 67.8-89.4), respectively. FFS was significantly better when the interval between the first and second transplantation was >60 days (88.9%; 95% CI, 73.0-95.7) than when it was ⩽60 days (61.4%; 95% CI, 33.3-80.5; P=0.026). All 12 patients who were conditioned with regimens containing fludarabine and melphalan were alive with hematopoietic recovery. These findings justify the recommendation of a second HSCT for children with SAA who have experienced graft failure after first HSCT.
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Yoshida H, Shinke A, Kawano Y, Takaki K. Copper-catalyzed α-selective hydrostannylation of alkynes for the synthesis of branched alkenylstannanes. Chem Commun (Camb) 2015; 51:10616-9. [DOI: 10.1039/c5cc02720a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A universal system for highly α-selective hydrostannylation of terminal alkynes has been developed by use of a distannane or a silylstannane as a stannylating reagent under copper catalysis.
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Okamoto M, Nasu K, Abe W, Aoyagi Y, Kawano Y, Kai K, Moriyama M, Narahara H. Enhanced miR-210 expression promotes the pathogenesis of endometriosis through activation of signal transducer and activator of transcription 3. Hum Reprod 2014; 30:632-41. [PMID: 25516558 DOI: 10.1093/humrep/deu332] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
STUDY QUESTION What are the roles of the microRNA miR-210-an miRNA that is up-regulated in endometriotic cyst stromal cells (ECSCs)-in the pathogenesis of endometriosis? SUMMARY ANSWER Up-regulated miR-210 expression in ECSCs is involved in their proliferation, resistance to apoptosis and angiogenesis through signal transducer and activator of transcription (STAT) 3. WHAT IS KNOWN ALREADY In the pathogenesis of endometriosis, a number of roles for microRNAs (miRNAs) are becoming apparent. STUDY DESIGN, SIZE, DURATION ECSCs and normal endometrial stromal cells (NESCs) were isolated from ovarian endometriotic tissues (patients aged 24-40 years undergoing salpingo-oophorectomy or evisceration for the treatment of ovarian endometriotic cysts, n = 10) and the eutopic endometrial tissues without endometriosis (premenopausal patients aged 35-45 years undergoing hysterectomies for subserousal leiomyoma, n = 13), respectively. PARTICIPANTS/MATERIALS, SETTING, METHODS We used a global gene expression microarray technique to identify downstream targets of miR-210, and we assessed the functions of miR-210 in the pathogenesis of endometriosis by using the miR-210-transfected NESCs. MAIN RESULTS AND THE ROLE OF CHANCE Gene expression microarray analysis revealed that one of the key target molecules of miR-210 is STAT3. In the NESCs, in comparison to the control, miR-210 transfection resulted in the induction of cell proliferation (P < 0.0005), the production of vascular endothelial cell growth factor (VEGF) (P < 0.0005) and the inhibition of apoptosis (P < 0.05) through STAT3 activation [increased levels of mRNA (P < 0.0005), and protein (P < 0.005)]. In the ECSCs, inhibitors of STAT3 inhibited the cell proliferation and VEGF production (P < 0.05), and induced the apoptosis of these cells (P < 0.05). LIMITATIONS, REASONS FOR CAUTION The roles of aberrant miR-210 expression were investigated only in the stromal component of ectopic and eutopic endometrium. Control endometrial tissues were obtained from premenopausal patients who had subserosal leiomyoma and NESC gene expression patterns may be altered in these women. Furthermore, the effects of STAT3 inhibitors were evaluated only in ECSCs and not in NESCs. WIDER IMPLICATIONS OF THE FINDINGS The present findings indicate that miR-210 induces NESCs to differentiate into the endometriotic phenotype and we speculate that up-regulated miR-210 expression in ECSCs is involved in the creation of the endometriosis-specific cellular dysfunctions through epigenetic mechanisms. The data indicate that STAT3 inhibitors may be promising candidates for the treatment of endometriosis. STUDY FUNDING/COMPETING INTERESTS This work was supported in part by Grants-in-Aid for Scientific Research from the Japan Society for the Promotion of Science (no. 13237327 to K.N., no. 25861500 to Y.K. and no. 23592407 to H.N.). There are no conflicts of interest to declare.
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Kawano Y, Mizuta K, Sanada Y, Urahashi T, Ihara Y, Okada N, Yamada N, Sasanuma H, Sakuma Y, Taniai N, Yoshida H, Kawarasaki H, Yasuda Y, Uchida E. Risk Factors of Cytomegalovirus Infection After Pediatric Liver Transplantation. Transplant Proc 2014; 46:3543-7. [DOI: 10.1016/j.transproceed.2014.09.150] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 09/15/2014] [Accepted: 09/23/2014] [Indexed: 12/22/2022]
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Sasao H, Arakawa H, Kubo H, Kawano Y, Itami K. Note: Magnification of a polarization angle with a Littrow layout brazed grating. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:086106. [PMID: 25173331 DOI: 10.1063/1.4892478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new method to magnify a small polarization angle with brazed gratings has been developed. In the method, difference in diffraction efficiency for S and P polarization components is used. The magnification dependence on the incident angle can be small by arranging the grating in Littrow layout. A magnification with a factor ~2.7 has been demonstrated for a 10.6 μm CO2 laser beam as expected from a calculation. The method is applicable in many polarimetry fields.
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Yamamoto T, Hashimoto Y, Serizawa Y, Inamoto S, Sato K, Sugie T, Takeuchi M, Kawano Y. Development of the supervisory systems for the ITER diagnostic systems in JADA. FUSION ENGINEERING AND DESIGN 2014. [DOI: 10.1016/j.fusengdes.2014.01.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Taniai N, Yoshida H, Kawano Y, Uchida E. Case report of FLT3-ITD-positive AML patient 11 years after living donor liver transplantation. Transplant Proc 2014; 46:1003-5. [PMID: 24767404 DOI: 10.1016/j.transproceed.2013.11.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 11/22/2013] [Indexed: 11/27/2022]
Abstract
With the increasing number of long-term survivors of living donor liver transplantation, the occurrence of secondary cancer is sometimes reported. Solid tumors such as lymphomas are mainly observed. However, only 8 cases of leukemia have been reported so far. For patients younger than 15 years old, leukemia developed in 4 within 3 years after the liver transplantation, whereas acute lymphoblastic leukemia developed in only 1 patient. This is the first case report of a patient in whom FLT3-ITD-positive acute myeloid leukemia (AML) developed more than 10 years after living donor liver transplantation for congenital biliary atresia. AML developed in a 14-year-old boy 11 years after living donor liver transplantation from his father. The patient received the transplant at the age of 3 years and was treated with tacrolimus and methylprednisolone for transplant rejection. Eleven years posttransplantation, he visited the hospital with general malaise and anemia. Blood tests revealed an elevated white blood cell count of 60,100/μL, and the patient was diagnosed with AML. Chromosome analysis revealed a t(6; 9) (p23 q34) translocation; moreover, genetic testing revealed a FLT3-ITD-positive mutation. We started treatment in accordance with the Tokyo Children's Cancer Study Group AML99 protocol. With chemotherapy treatment, the patient achieved complete remission. After chemotherapy, we performed stem cell transplantation from his father. Other patients were reported in relatively early stages after liver transplantation, but our case was more than 10 years posttransplantation. The association with the onset of congenital bile duct atresia and leukemia is still not clear, but we consider the possibility that long-term immunosuppressive drugs contribute to developing leukemia.
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Matsumoto N, Ishikura H, Nakamura Y, Tanaka J, Mizunuma M, Kawano Y, Morimoto S, Kaneyama H, Murai A. Usefulness of intravenous immunoglobulin administration to sepsis-induced coagulopathy in ICU patients. Crit Care 2014. [PMCID: PMC4273750 DOI: 10.1186/cc14027] [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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Shiga Y, Sugimoto M, Iwabuchi T, Kawano Y, Oiwa Y, Watanabe H, Hariu K, Shimbori M, Umeda K, Otsutomo T, Morikawa H, Yamamoto R. 1124 Benefit of three-dimensional printing in robotic laparoscopic renal surgery: Tangible surgical navigation using a patient-based three-dimensional printed kidney. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/s1569-9056(14)61104-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Saito T, Izumi K, Shiomi A, Uenoyama A, Ohnuki H, Kato H, Terada M, Nozawa-Inoue K, Kawano Y, Takagi R, Maeda T. Zoledronic acid impairs re-epithelialization through down-regulation of integrin αvβ6 and transforming growth factor beta signalling in a three-dimensional in vitro wound healing model. Int J Oral Maxillofac Surg 2014; 43:373-80. [DOI: 10.1016/j.ijom.2013.06.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 06/14/2013] [Accepted: 06/17/2013] [Indexed: 11/16/2022]
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Mitomi T, Kawano Y, Kinoshita-Kawano S. Effect of the antineoplastic agent busulfan on rat molar root development. Arch Oral Biol 2014; 59:47-59. [PMID: 24404577 DOI: 10.1016/j.archoralbio.2013.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The antineoplastic bifunctional-alkylating agent busulfan (Bu) induces developmental anomalies. We examined histopathological changes in the molar roots of rats that received Bu at different stages of root formation. DESIGN At different developmental stages, i.e., on postnatal days (P) 13, 15, and 19, rats were administered 7.5 mg/kg of Bu dissolved in dimethyl sulfoxide (DMSO) and then killed on P 30. After micro-computed tomography analysis, the maxillary first molars underwent immunohistochemical analysis for cytokeratin 14 (CK14), nestin, and dentin sialoprotein (Dsp). This was followed by histomorphometric analysis. RESULTS The rats receiving Bu at an early stage (i.e., P 13 and P 15) showed osteodentin formation and complete destruction of the Hertwig's epithelial root sheath (HERS). Cells around osteodentin showed nestin and Dsp immunoreactivity. The root lengths in rats treated with Bu at P 13 (1228.44 ± 62.17 μm) and P 15 (1536.08 ± 109.71 μm) were lower than that in the control rats (1674.10 ± 40 μm). A narrowed apical foramen and an increased amount of osteodentin were also present, depending on the rat's age at the time of treatment (P < 0.05). CONCLUSION Busulfan treatment in juvenile rats resulted in abnormal root development, depending on the stage at which Bu was administered. This abnormal development may result from the destruction of the HERS. The administration of Bu caused a shortage of HERS cells, which are required for normal root development. This disturbs root formation, resulting in osteodentin formation and a narrowed apex foramen.
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Ogawa Y, Kawano Y, Yamazaki Y, Onishi Y. Shikonin shortens the circadian period: possible involvement of Top2 inhibition. Biochem Biophys Res Commun 2014; 443:339-43. [PMID: 24321095 DOI: 10.1016/j.bbrc.2013.11.116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 11/30/2013] [Indexed: 12/01/2022]
Abstract
The naphthoquinone pigment, shikonin, is a natural product derived from Lithospermum erythrorhizon and an active component of a Chinese traditional herbal therapeutic. We identified shikonin as a candidate for shortening the circadian period using real-time reporter gene assays based on NIH3T3-derived stable reporter cells. Period length that became shortened in cells incubated with shikonin or etoposide reverted to that of control cells after continued incubation without these compounds. These findings indicated that shikonin and etoposide shorten the circadian period reversibly and through similar mechanisms. Topoisomerase II (Top2)-specific decatenation assays confirmed that shikonin, liker etoposide, is a Top2 inhibitor. Shikonin was incorporated into the nucleus and Top2 was located in the Bmal1 promoter, suggesting the relationship between Bmal1 transcription and Top2 inhibition. Top2a siRNA also shortened period length, suggesting that Top2 is involved in this process. Promoter assays showed that Top2a siRNA, etoposide and shikonin reduce Bmal1 promoter activity. These findings indicated that Top2 is involved in Bmal1 transcription and influences the circadian period, and that shikonin is a novel contributor to the control of period length in mammalian cells.
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Kawano Y, Ishikura H, Nishida T, Matusmoto N, Ohya H, Mizunuma M, Nakamura Y, Umemura T. Surveillance for nosocomial pathogens in our ICU. Crit Care 2014. [PMCID: PMC4069497 DOI: 10.1186/cc13540] [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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Kotta Ü, Tõnso M, Kawano Y. Polynomial accessibility condition for the multi-input multi-output nonlinear control system. PROCEEDINGS OF THE ESTONIAN ACADEMY OF SCIENCES 2014. [DOI: 10.3176/proc.2014.2.04] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yoshimura C, Tamura A, Kawano Y, Watanabe T, Ando S. Continuous positive airway pressure therapy decreases plasma glucose levels after the glucose load even in non-diabetic patients with obstructive sleep apnea. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kawano Y, Nishida M, Kai K, Hirakawa T, Nasu K, Narahara H. Clear cell adenocarcinoma in the uterine cervix associated with malformation of the uterus. J OBSTET GYNAECOL 2013; 33:914-5. [PMID: 24219748 DOI: 10.3109/01443615.2013.830090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kai Y, Kawano Y, Okamoto M, Nasu K, Narahara H. The effects of metformin on the activation of amp-activated protein kinase (AMPK) in human granulosa cells. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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69
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Kawano Y, Neeley S, Adachi K, Nakai H. An experimental and computational evolution-based method to study a mode of co-evolution of overlapping open reading frames in the AAV2 viral genome. PLoS One 2013; 8:e66211. [PMID: 23826091 PMCID: PMC3691236 DOI: 10.1371/journal.pone.0066211] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Accepted: 05/07/2013] [Indexed: 02/07/2023] Open
Abstract
Overlapping open reading frames (ORFs) in viral genomes undergo co-evolution; however, how individual amino acids coded by overlapping ORFs are structurally, functionally, and co-evolutionarily constrained remains difficult to address by conventional homologous sequence alignment approaches. We report here a new experimental and computational evolution-based methodology to address this question and report its preliminary application to elucidating a mode of co-evolution of the frame-shifted overlapping ORFs in the adeno-associated virus (AAV) serotype 2 viral genome. These ORFs encode both capsid VP protein and non-structural assembly-activating protein (AAP). To show proof of principle of the new method, we focused on the evolutionarily conserved QVKEVTQ and KSKRSRR motifs, a pair of overlapping heptapeptides in VP and AAP, respectively. In the new method, we first identified a large number of capsid-forming VP3 mutants and functionally competent AAP mutants of these motifs from mutant libraries by experimental directed evolution under no co-evolutionary constraints. We used Illumina sequencing to obtain a large dataset and then statistically assessed the viability of VP and AAP heptapeptide mutants. The obtained heptapeptide information was then integrated into an evolutionary algorithm, with which VP and AAP were co-evolved from random or native nucleotide sequences in silico. As a result, we demonstrate that these two heptapeptide motifs could exhibit high degeneracy if coded by separate nucleotide sequences, and elucidate how overlap-evoked co-evolutionary constraints play a role in making the VP and AAP heptapeptide sequences into the present shape. Specifically, we demonstrate that two valine (V) residues and β-strand propensity in QVKEVTQ are structurally important, the strongly negative and hydrophilic nature of KSKRSRR is functionally important, and overlap-evoked co-evolution imposes strong constraints on serine (S) residues in KSKRSRR, despite high degeneracy of the motifs in the absence of co-evolutionary constraints.
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Okamoto M, Chono H, Kawano Y, Saito N, Tsuda H, Inoue K, Kato I, Mineno J, Baba M. Sustained Inhibition of HIV-1 Replication by Conditional Expression of theE. coli-Derived Endoribonuclease MazF in CD4+T cells. Hum Gene Ther Methods 2013; 24:94-103. [DOI: 10.1089/hgtb.2012.131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kawano Y, Romero D, Bengoa N, Maltry N, Walker M, Eto M, Waxman J, Niehrs C, Kypta R. 941 Loss of Dickkopf-3 expression impairs prostate acinar morphogenesis via aberrant TGF-β/Smad signalling activation. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/s1569-9056(13)61420-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Itoh H, Kawano Y, Furukawa Y, Matsumoto H, Yuge A, Narahara H. The role of serum adiponectin levels in women with polycystic ovarian syndrome. CLIN EXP OBSTET GYN 2013; 40:531-535. [PMID: 24597249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
PURPOSE OF INVESTIGATION The aim of this study was to measure serum adiponectin concentrations in women with polycystic ovarian syndrome (PCOS) and to assess possible correlations between adiponectin and the hormonal or metabolic parameters of this syndrome. MATERIALS AND METHODS Serum adiponectin levels were evaluated in 20 women with PCOS and 22 women without PCOS whose age and body mass index (BMI) matched the patients. The levels of fasting blood glucose, fasting insulin, gonadotropin, and sex steroid hormones were evaluated in both groups. The homeostasis model assessment (HOMA) score was also calculated. The serum adiponectin levels were assayed by enzyme-linked immunoabsorbent assay (ELISA). RESULTS Serum adiponectin levels were significantly lower in obese women than in normal-weight women, and they were also significantly lower in PCOS patients with HOMA scores greater than 1.7 compared with those with HOMA scores lower than 1.7. When the subjects were divided in two groups based on serum adiponectin levels (> 40 microg/ml, < 40 microg/ml), 65% of patients with PCOS were included in the lower adiponectin group (p < 0.05). In addition, gonadotropin levels were increased, dependent on the adiponectin levels in women with PCOS. CONCLUSION Adiponectin is regarded as a possible link between adiposity and insulin resistance (IR). From this data, the secretions of gonadotropin are implicated in the levels of adiponectin in women with PCOS. It is suggested that adiponectin may play an important role in the pathogenesis of PCOS.
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Ohta Y, Kawano Y, Iwashima Y, Hayashi S, Yoshihara F, Nakamura S. Effect of bezafibrate on office, home and ambulatory blood pressure in hypertensive patients with dyslipidemia. J Hum Hypertens 2012; 27:417-20. [PMID: 23254592 DOI: 10.1038/jhh.2012.64] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
It has been suggested that fibrates, lipid-lowering agents with a peroxisome proliferator-activated receptor-α agonistic property, lower blood pressure (BP) in some experimental models of hypertension. However, the effect of fibrates on BP in humans has been inconsistent, and there are few studies using home or ambulatory BP monitoring. We investigated the effects of bezafibrate on office, home and ambulatory BP in hypertensive patients with dyslipidemia. Thirty-two essential hypertensive patients with dyslipidemia (6 men and 26 women, mean age 65±8 years old) were assigned to a control period and a bezafibrate period (200 mg twice daily) for 8 weeks each in a randomized crossover manner. Bezafibrate significantly reduced serum triglyceride, total and low-density lipoprotein-cholesterol, blood glucose, plasma insulin, the homeostasis model assessment ratio and increased high-density lipoprotein-cholesterol. Compared with the control period, changes in office, home and 24-h BP with bezafibrate were -0.7±2.1/-1.6±1.2 mm Hg, +0.9±1.0/-0.5±0.6 and +0.8±1.4/-0.6±0.9 mm Hg, respectively. None of these differences in BP was significant. In conclusion, bezafibrate improved lipid metabolism and insulin sensitivity but did not affect office, home or ambulatory BP in hypertensive patients with dyslipidemia. Fibrates do not appear to lower BP in patients with essential hypertension.
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Yamamoto T, Yonekawa I, Ohta K, Hosoyama H, Hashimoto Y, Wallander A, Winter A, Sugie T, Kusama Y, Kawano Y, Yoshino R. Designing a prototype of the ITER pulse scheduling system. FUSION ENGINEERING AND DESIGN 2012. [DOI: 10.1016/j.fusengdes.2012.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Arakawa H, Kawano Y, Itami K. Identification of errors in the electron density measurements of a tangential interferometer∕polarimeter system during a tokamak discharge. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:10E345. [PMID: 23127002 DOI: 10.1063/1.4745223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A new method for the comparative verification of electron density measurements obtained with a tangential interferometer and a polarimeter during a discharge is proposed. The possible errors associated with the interferometer and polarimeter are classified by the time required for their identification. Based on the characteristics of the errors, the fringe shift error of the interferometer and the low-frequency noise of the polarimeter were identified and corrected for the JT-60U tangential interferometer∕polarimeter system.
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Kobune M, Iyama S, Kikuchi S, Horiguchi H, Sato T, Murase K, Kawano Y, Takada K, Ono K, Kamihara Y, Hayashi T, Miyanishi K, Sato Y, Takimoto R, Kato J. Stromal cells expressing hedgehog-interacting protein regulate the proliferation of myeloid neoplasms. Blood Cancer J 2012; 2:e87. [PMID: 22961059 PMCID: PMC3461706 DOI: 10.1038/bcj.2012.36] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Aberrant reactivation of hedgehog (Hh) signaling has been described in a wide variety of human cancers including cancer stem cells. However, involvement of the Hh-signaling system in the bone marrow (BM) microenvironment during the development of myeloid neoplasms is unknown. In this study, we assessed the expression of Hh-related genes in primary human CD34+ cells, CD34+ blastic cells and BM stromal cells. Both Indian Hh (Ihh) and its signal transducer, smoothened (SMO), were expressed in CD34+ acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS)-derived cells. However, Ihh expression was relatively low in BM stromal cells. Remarkably, expression of the intrinsic Hh-signaling inhibitor, human Hh-interacting protein (HHIP) in AML/MDS-derived stromal cells was markedly lower than in healthy donor-derived stromal cells. Moreover, HHIP expression levels in BM stromal cells highly correlated with their supporting activity for SMO+ leukemic cells. Knockdown of HHIP gene in stromal cells increased their supporting activity although control cells marginally supported SMO+ leukemic cell proliferation. The demethylating agent, 5-aza-2′-deoxycytidine rescued HHIP expression via demethylation of HHIP gene and reduced the leukemic cell-supporting activity of AML/MDS-derived stromal cells. This indicates that suppression of stromal HHIP could be associated with the proliferation of AML/MDS cells.
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Onishi Y, Kawano Y. Rhythmic binding of Topoisomerase I impacts on the transcription of Bmal1 and circadian period. Nucleic Acids Res 2012; 40:9482-92. [PMID: 22904072 PMCID: PMC3479213 DOI: 10.1093/nar/gks779] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The Bmal1 gene is essential for the circadian system, and its promoter has a unique open chromatin structure. We examined the mechanism of topoisomerase I (Top1) to understand the role of the unique chromatin structure in Bmal1 gene regulation. Camptothecin, a Top1 inhibitor, and Top1 small interfering RNA (siRNA) enhanced Baml1 transcription and lengthened its circadian period. Top1 is located at an intermediate region between two ROREs that are critical cis-elements of circadian transcription and the profile of Top1 binding indicated anti-phase circadian oscillation of Bmal1 transcription. Promoter assays showed that the Top1-binding site is required for transcriptional suppression and that it functions cooperatively with the distal RORE, supporting that Bmal1 transcription is upregulated by Top1 inhibition. A DNA fragment between the ROREs, where the Top1-binding site is located, behaved like a right-handed superhelical twist, and modulation of Top1 activity by camptothecin and Top1 siRNA altered the footprint profile, indicating modulation of the chromatin structure. These data indicate that Top1 modulates the chromatin structure of the Bmal1 promoter, regulates Bmal1 transcription and influences the circadian period.
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Tsunoda A, Sumi T, Shirakura S, Kishimoto S, Aoyagi M, Kawano Y. Otitis Media with Effusion and Skull Base Lesions. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kishimoto S, Tsunoda A, Sugimoto T, Yano T, Tanaka K, Aoyagi S, Kawano Y. Facial Dismasking Approach for Craniofacial Lesion. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1313980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Onishi Y, Kawano Y, Yamazaki Y. Lycorine, a candidate for the control of period length in mammalian cells. Cell Physiol Biochem 2012; 29:407-16. [PMID: 22508048 DOI: 10.1159/000338495] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2012] [Indexed: 12/16/2023] Open
Abstract
Plants of the Amaryllidaceae family have been used as therapeutic agents against CNS related maladies such as Alzheimer's disease. The known primary alkaloid constituents have significant biological activity. We identified the Lycoris alkaloids lycorine and lycoricidinol from Amaryllidaceae using a real-time reporter gene assay system based on NIH3T3 cells. These alkaloids have a wide spectrum of pharmacological actions and dose-dependently lengthen the circadian period. When cells that had been incubated with lycorine or lycoricidinol were washed and then incubated without these alkaloids, period length reverted to that of control cells, suggesting that elongation of the circadian period induced by lycorine and lycoricidinol is reversible. Although one of its major activities is the inhibition of protein synthesis, lycorine induced dose-dependent period elongation regardless of the presence of cycloheximide and moreover, cycloheximide, itself did not affect period length, suggesting that lycorine dose-dependently extends the circadian period by a mechanism other than translational inhibition. Real-time RT-PCR showed that lycorine enhanced RORα and Bmal1 transcription, and exogenous expression and knockdown of Bmal1 also caused long and short periods, respectively, thus confirming the phenotype indicated by lycorine. These data indicate that lycorine and lycoricidinol modulate Bmal1 transcription and the circadian period, and also suggest that Lycoris alkaloids are novel contributors to the control of period length in mammalian cells.
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Kato T, Kawano Y, Yang J, Akashi H, Takayama H, Naka Y, Farr M, Mancini D, Schulze P. 732 Preoperative Hypoalbuminemia Predicts Poor Prognosis in Patients Undergoing Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Kawano Y, Furukawa Y, Karakida S, Kira N, Ishii T, Narahara H. Regulation of interleukin-1alpha and tumor necrosis factor-alpha-induced interleukin-8 production by amnion-derived (WISH) cells. CLIN EXP OBSTET GYN 2012; 39:43-48. [PMID: 22675954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
PURPOSE OF INVESTIGATION It has been reported that interleukin (IL)-8 is produced in the amnion and that its production is enhanced by the initiation of labor. The purpose of this study was to clarify the mechanism of IL-8 production by amnion-derived (WISH) cells. METHODS Cells were cultured and treated with various concentrations of interleukin (IL)-1alpha, IL-1 receptor antagonist (ra), tumor necrosis factor (TNF)- alpha, C2-, C6-ceramide, mitogen-activated protein (MAP) kinase kinase (MEK) inhibitor (U0126) and pyridinyl imidazole (p38 MAP kinase inhibitor, SB203580). IL-8 in the culture medium was measured by ELISA. RESULTS The production of IL-8 was significantly increased by IL-1alpha or TNF-alpha, and the increase of IL-8 stimulated by IL-1alpha was suppressed by IL-1 ra in a dose-dependent manner. The increase in IL-8 production by IL-1alpha or TNF-alpha was further enhanced by simultaneous addition of C2-ceramide. The increase of IL-8 stimulated by IL-1alpha or TNF-alpha was also suppressed by treatment with U0126 or SB203580. The results of this study demonstrate that the production of IL-8 induced by IL-1alpha and TNF-alpha is enhanced by C2-ceramide, and suppressed by MEK inhibitor or P38 MAP kinase inhibitor. CONCLUSION The results suggest that ceramide-mediated accumulation and MAP kinase-mediated suppression of inflammatory events in the amnion may play an important role in the maintenance of pregnancy and initiation of labor.
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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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Kawano Y, Ogihara T, Saruta T, Goto Y, Ishii M. Association of blood pressure control and metabolic syndrome with cardiovascular risk in elderly Japanese: JATOS study. Am J Hypertens 2011; 24:1250-6. [PMID: 21814293 DOI: 10.1038/ajh.2011.138] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The impact of the metabolic syndrome (MS) on cardiovascular events in elderly subjects has not been clarified. We hypothesized that the impact differs between patients with and without strictly controlled blood pressure (BP) and also between early elderly (<75 years) and late (≥75 years) elderly patients. METHODS Elderly hypertensive patients (65-85 years old) were randomly assigned to strict (target systolic BP <140 mm Hg) or mild (140-159 mm Hg) BP target, and were treated for 2 years with efonidipine-based regimen. MS was defined according to the National Cholesterol Education Program Adult Treatment Panel III criteria, except for the use of body mass index (BMI) ≥25 kg/m(2) instead of waist circumference. Primary endpoint was combined incidence of cardiovascular and renal events. Data were obtained from 2,865 patients. RESULTS The prevalence of MS was 31.4%. The incidence of primary endpoint in patients with and without MS was 4.0% and 3.1%, respectively. MS was a significant risk factor for cardiovascular events in patients <75 years old (adjusted hazard ratio (HR) 2.17, P = 0.01), but not in patients ≥75 years old (adjusted HR 0.98, P = 0.94). In patients with MS, the event rate was significantly lower with strict treatment than with mild treatment among patients aged <75 years (P = 0.0006) but not in those aged ≥75 years (P = 0.82). CONCLUSIONS MS was associated with cardiovascular risk in elderly hypertensive patients <75 years old, and strict BP control was beneficial for those with MS. However, MS and intensive control of BP may have little effect on cardiovascular events in elderly patients ≥75 years old.
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Sato K, Yaguchi E, Pitcher C, Walker C, Encheva A, Kawano Y, Kusama Y. Electromagnetic studies of the ITER generic upper port plug. FUSION ENGINEERING AND DESIGN 2011. [DOI: 10.1016/j.fusengdes.2011.02.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ishikawa M, Kawano Y, Imazawa R, Sato S, Vayakis G, Bertalot L, Yatsuka E, Hatae T, Kondoh T, Kusama Y. Neutronic analysis of the ITER poloidal polarimeter. FUSION ENGINEERING AND DESIGN 2011. [DOI: 10.1016/j.fusengdes.2011.01.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hirata K, Kawano Y, Hashimoto K, Ueno G, Hikima T, Murakami H, Shimizu N, Hasegawa K, Kumasaka T, Yamamoto M. Protein micro-crystallography at the micro focus beamline BL32XU at SPring-8. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311087812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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88
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Fang L, Isobe N, Yoshimura S, Yonekawa T, Matsushita T, Masaki K, Doi H, Ochi K, Miyamoto K, Kawano Y, Kira J. Interleukin-7 receptor alpha gene polymorphism influences multiple sclerosis risk in Asians. Neurology 2011; 76:2125-7. [DOI: 10.1212/wnl.0b013e31821f466c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Kawano Y, Nasu K, Li H, Tsuno A, Abe W, Takai N, Narahara H. Application of the histone deacetylase inhibitors for the treatment of endometriosis: histone modifications as pathogenesis and novel therapeutic target. Hum Reprod 2011; 26:2486-98. [DOI: 10.1093/humrep/der203] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Seiler S, Cremers B, Ege P, Fehrenz M, Hornof F, Jeken J, Kersting S, Rebling NM, Steimle C, Rogacev KS, Scheller B, Bohm M, Fliser D, Heine GH, Nagler EVT, Webster AC, Vanholder R, Zoccali C, Nagler EVT, Webster AC, Vanholder R, Zoccali C, Chinnappa S, Mooney A, El Nahas M, Tan LB, Lucisano G, Bova F, Presta P, Caglioti C, Caglioti A, Fuiano G, Ikeda A, Konta T, Takasaki S, Mashima Y, Kubota I, Nakamura S, Kokubo Y, Makino H, Takata H, Fujii T, Yoshihara F, Horio T, Kawano Y, Badulescu M, Capusa C, Stancu S, Blaga V, Ilyes A, Anghel C, Mircescu G, Tolkacheva V, Villevalde S, Tyukhmenev E, Kobalava Z, Shalyagin Y, Shvetsov M, Nagaytseva S, Lukshina L, Shilov E, Fusaro M, Tripepi G, Crepaldi G, Maggi S, D'Angelo A, Naso A, Plebani M, Vajente N, Giannini S, Calo L, Miozzo D, Cristofaro R, Gallieni M, Feriozzi S, Torras J, Cibulla M, Nicholls K, Sunder-Plassmann G, West M, Pavlikova E, Villevalde S, Kobalava Z, Moiseev V, Yen CT, Huang CH, Wang MC, Daher E, Silva Junior G, Vieira AP, Couto Bem A, Fiqueiredo Filho A, Lopes Filho A, Guedes A, Eloy Costa C, Holanda de Souza J, Liborio A, Daniel R, Nitsch D, Harper L, EUVAS Group, Little M, Khatami SMR, Mahmoodian M, Zare E, Pashang M, Mc Carroll F, Cooke B, O'Kane M, Moles K, Garrett P, Lindsay J, Yu TM, Chen CH, Wu MJ, Cheng CH, Chuang YW, Shu KH, Cole JC, Oberdhan D, Cheng R, Urwongse J, Krasa H, Czerwiec F, Chapman A, Perrone R, Moranne O, Fafin C, Favre G, Mougel S, Vido A, Seitz B, Dahan P, Albano L, Esnult V, Rama M, Gayathri P, Leelavathi DA, Ravindra PA, Sundaram V, Nageshwar PR, Presta P, Piraina V, Talarico R, Esposito G, Colombo A, Lucisano G, Caglioti C, Mazza G, Cirillo E, Quattrone S, Fuiano G, Marron B, Chen N, Shi H, Ma X, Zhang J, Mao P, He L, Yu J, Ding X, Jiang G, Gu Y, Zhang W, Wang N, Mei C, Ni Z, Tzanno C, Stein G, Nisihara F, Rocha J, Clesca P, Uezima C, Langham H, Tomlin M, Coyne E, Hope W, Bebb C, Johnson C, Byrne C, Li Y, Zhang W, Ren H, Wang W, Shi H, Li X, Chen X, Wu X, Chen N, Canver B, Colak T, Can S, Karakayali H, Bansal V, Davis R, Litinas E, Hoppensteadt D, Thethi I, Fareed J. General & clinical epidemiology CKD 1-5 (1). Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.48] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ferrieres J, Berkenboom G, Coufal Z, James S, Mohacsi A, Pavlides G, Norrbacka K, Sartral M, Paget MA, Tomlin M, Zeymer U, Hoffmann P, Keller F, Blicher TM, Hommel K, Abildstrom SZ, Madsen M, Kamper AL, Rogacev K, Pinsdorf T, Weingartner O, Gerhart M, Welzel E, van Bentum K, Menzner A, Fliser D, Lutjohann D, Heine G, Di Benedetto A, Marcelli D, Giordana G, Cerino F, Gatti E, Otero A, Dominguez-Sardina M, Castineira MC, Crespo JJ, Ferreras A, Mojon A, Ayala DE, Fernandez JR, Hermida RC, Investigadores Proyecto Hygia, Doi Y, Yoshihara F, Iwashima Y, Takata H, Fujii T, Horio T, Nakamura S, Kawano Y, Onofriescu M, Cepoi V, Segall L, Covic A, Kurnatowska I, Grzelak P, Kaczmarska M, Masajtis-Zagajewska A, Rutkowska-Majewska E, Stefanczyk L, Nowicki M, Gozhenko A, Susla O, Shved M, Mysula I, Susla H, Cordeiro Silva Junior AC, Smanio P, Amparo FC, Oliveira MAC, Gonzaga CC, Sousa MG, Passarelli Jr O, Borelli F, Lotaif LD, Sousa AGMR, Amodeo C, Inaguma D, Ando R, Ikeda M, Joki N, Koiwa F, Komatsu Y, Sakaguchi T, Shinoda T, Yamaka T, Shigematsu T, Pizzarelli F, Rossi C, Dattolo P, Tripepi G, Mieth M, Bandinelli S, Zoccali C, Mass R, Ferrucci L, Gifford F, Methven S, Boag DE, Spalding EM, MacGregor MS, Kirsch M, Dorhofer L, Bruning J, Banas B, Kramer BK, Schubert M, Boger CA, Dorhofer L, Kirsch M, Bruning J, Banas B, Kramer BK, Schubert M, Boger CA, Atapour A, Kalantari E, Shahidi S, Mortazavi M, Marron B, Quiros P, Vega N, Garcia-Canton C, Moreno F, Prieto M, Ahijado F, Salgueira M, Paez C, Castellano I, Lerma JL, De Arriba G, Martinez-Ocana JC, Morales A, Ramirez de Orellana M, Ramos A, Duarte V, Ruiz C, Gallego S, Ortiz A, Furuhashi T, Moroi M, Joki N, Hase H, Masai H, Kunimasa T, Nakazato R, Fukuda H, Sugi K, Valluri A, Severn A, Chakraverty S, Palma R, Polo A, Espigares MJ, Manjon M, Cerezo S, Garcia-Agudo R, Aoufi S, Ruiz-Carrillo F, Gonzalez-Carro P, Perez-Roldan F, Tenias JM, Santiago da Silva P, Cunha C, Coelho L, Viana A, Moreira R, Wagner S, Friedman R, Veloso V, Suassuna J, Grinsztejn B, Iimuro S, Imai E, Matsuo S, Watanabe T, Nitta K, Akizawa T, Makino H, Ohashi Y, Hishida A, Fujimoto S, Yano Y, Sato Y, Konta T, Iseki K, Moriyama T, Yamagata K, Tsuruya K, Yoshida H, Asahi K, Watanabe T, Bellasi A, Mandreoli M, Baldrati L, Rigotti A, Corradini M, Russo G, David S, Malmusi G, Di Nicolo P, Orsi C, Poisetti P, Zanbianchi L, Caruso F, Fabbri A, Santoro A, Moranne O, Couchoud C, Pradier C, Esnault V, Vigneau C, Skapinakis P, Ikonomou M, Kyroglou E, Chondrogiannis P, Sygelakis M, Varvara C, Kyriklidou P, Balafa O, Mavreas V, Tsakiris D, Goumenos D, Siamopoulos K, Ikonomou M, Skapinakis P, Eleftheroudi M, Chardalias A, Kyroglou E, Banioti A, Vakianos I, Sygelakis M, Kalaitzidis R, Asimakopoulos K, Tsakiris D, Goumenos D, Siamopoulos K, Methven S, Jardine A, MacGregor M, van der Tol A, Van Biesen W, De Groote G, Verbeke P, Eeckhaut K, Vanholder R, Ivkovic V, Karanovic S, Vukovic Lela I, Juric D, Fistrek M, Kos J, Kovac-Peic A, Pecin I, Premuzic V, Miletic-Medved M, Cvitkovic A, Fodor L, Jelakovic B. General & clinical epidemiology CKD 1-5 (1). Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mizuta K, Sanada Y, Wakiya T, Urahashi T, Umehara M, Egami S, Hishikawa S, Okada N, Kawano Y, Saito T, Hayashida M, Takahashi S, Yoshino H, Shimizu A, Takatsuka Y, Kitamura T, Kita Y, Uno T, Yoshida Y, Hyodo M, Sakuma Y, Fujiwara T, Ushijima K, Sugimoto K, Ohmori M, Ohtomo S, Sakamoto K, Nakata M, Yano T, Yamamoto H, Kobayashi E, Yasuda Y, Kawarasaki H. Living-donor liver transplantation in 126 patients with biliary atresia: single-center experience. Transplant Proc 2011; 42:4127-31. [PMID: 21168643 DOI: 10.1016/j.transproceed.2010.11.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To describe our experience with 126 consecutive living-donor liver transplantation (LDLT) procedures performed because of biliary atresia and to evaluate the optimal timing of the operation. PATIENTS AND METHODS Between May 2001 and January 2010,126 patients with biliary atresia underwent 130 LDLT procedures. Mean (SD) patient age was 3.3 (4.2) years, and body weight was 13.8 (10.7) kg. Donors included 64 fathers, 63 mothers, and 3 other individuals. The left lateral segment was the most commonly used graft (75%). Patients were divided into 3 groups according to body weight: group 1, less than 8 kg (n = 40); group 2,8 to 20 kg (n = 63); and group 3, more than 20 kg (n = 23). Medical records were reviewed retrospectively. Follow up was 4.5 (2.7) years. RESULTS All group 3 donors underwent left lobectomy, and all group 1 donors underwent left lateral segmentectomy. No donors required a second operation or died. Comparison of the 3 groups demonstrated that recipient Pediatric End-Stage Liver Disease score in group 1 was highest, operative blood loss in group 2 was lowest (78 mL/kg), and operative time in group 3 was longest (1201 minutes). Hepatic artery complications occurred more frequently in group 1 (17.9%), and biliary stenosis (43.5%) and gastrointestinal perforation (8.7%) occurred more frequently in group 3. The overall patient survival rates at 1, 5, and 9 years was 98%, 97%, and 97%, respectively. Five-year patient survival rate in groups 1,2, and 3 were 92.5%, 100%, and 95.7%, respectively. Gastrointestinal perforation (n = 2) was the primary cause of death. CONCLUSIONS Living-donor liver transplantation is an effective treatment of biliary atresia, with good long-term outcome. It seems that the most suitable time to perform LDLT to treat biliary atresia is when the patient weighs 8 to 20 kg.
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Sanada Y, Mizuta K, Urahashi T, Umehara M, Wakiya T, Okada N, Hayashida M, Egami S, Hishikawa S, Kawano Y, Ushijima K, Otomo S, Sakamoto K, Fujiwara T, Sakuma Y, Hyodo M, Yasuda Y, Kawarasaki H. Management of intra-abdominal drain after living donor liver transplantation. Transplant Proc 2011; 42:4555-9. [PMID: 21168736 DOI: 10.1016/j.transproceed.2010.09.159] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2010] [Revised: 08/13/2010] [Accepted: 09/28/2010] [Indexed: 12/25/2022]
Abstract
BACKGROUND There have been few reports on the management of intra-abdominal drains after living donor liver transplantation (LDLT). We retrospectively investigated changes in ascitic data related to management of an intra-abdominal drain. PATIENTS AND METHODS Between March 2008 and June 2009, we performed 28 LDLT. On the first and the fifth postoperative day (POD) after LDLT, we examined the number of ascites cells and cell fractions as well as performed biochemical examination and cultures. RESULTS The day of removal of the drain for massive ascites (10 mL/kg/d or more) was 14.2 ± 5.4 POD; for less than 10 mL/kg/d it was 8.7 ± 1.9 POD (P < .001). Nine patients were ascites culture positive; long-term placement of the drain caused an infection in two patients. CONCLUSIONS When the amount of ascitic fluid on the fifth POD after LDLT was small, it was important to assess the properties of the ascitic fluid because of the possibility of a drain infection or of poor drainage. If the ascitic neutrophil count is less than 250/mm(3) or the examined ascites is normal, intra-abdominal drains should be removed.
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Kawano Y, Kim H, Matsuoka KI, Smith R, Lazo-Kallanian S, Daley J, Ho V, Cutler C, Koreth J, Alyea E, Antin J, Soiffer R, Ritz J. Telomerase Activity in Regulatory T Cells is Inversely Associated With Severity of Chronic Graft-Versus-Host Disease (cGVHD) After Hematopoietic Stem Cell Transplantation (HSCT). Biol Blood Marrow Transplant 2011. [DOI: 10.1016/j.bbmt.2010.12.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Imazawa R, Kawano Y, Ono T, Kusama Y. Terrace retro-reflector array for poloidal polarimeter on ITER. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2011; 82:023116. [PMID: 21361582 DOI: 10.1063/1.3541810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A new concept of a terrace retro-reflector array (TERRA) as part of the poloidal polarimeter for ITER is proposed in this paper. TERRA reflects a laser light even from a high incident angle in the direction of the incident-light path, while a conventional retro-reflector array cannot. Besides, TERRA can be installed in a smaller space than a corner-cube retro-reflector. In an optical sense, TERRA is equivalent to a Littrow grating, the blaze angle of which varies, depending on the incident angle. The reflected light generates a bright and dark fringe, and the bright fringe is required to travel along the incident-light path to achieve the objects of laser-aided diagnostics. In order to investigate the propagation properties of laser light reflected by TERRA, we have developed a new diffraction formula. Conditions for the propagation of the bright fringe in the direction of the incident light have been obtained using the Littrow grating model and have been confirmed in a simulation applying the new diffraction formula. Finally, we have designed laser transmission optics using TERRA for the ITER poloidal polarimeter and have calculated the light propagation of the system. The optical design obtains a high transmission efficiency, with 88.6% of the incident power returned. These results demonstrate the feasibility of applying TERRA to the ITER poloidal polarimeter.
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Yamazaki Y, Kawano Y. Inhibitory Effects of Herbal Alkaloids on the Tumor Necrosis Factor-.ALPHA. and Nitric Oxide Production in Lipopolysaccharide-Stimulated RAW264 Macrophages. Chem Pharm Bull (Tokyo) 2011; 59:388-91. [DOI: 10.1248/cpb.59.388] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kawano Y, Furukawa Y, Kawano Y, Nasu K, Narahara H. Thrombin-induced chemokine production in endometrial stromal cells. Hum Reprod 2010; 26:407-13. [DOI: 10.1093/humrep/deq347] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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He H, Emmett MR, Marshall AG, Ji Y, Conrad CA, Priebe W, Colman H, Lang FF, Madden TL, Kristoffersen K, Stockhausen MT, Poulsen HS, Binder ZA, Orr B, Lim M, Weingart JD, Brem H, Olivi A, Riggins GJ, Gallia GL, Litofsky NS, Miller DC, Rath P, Anthony DC, Feng Q, Franklin C, Pei L, Free A, Kirk MD, Shi H, Timmer M, Theiss H, Juerchott K, Ries C, Paron I, Franz W, Selbig J, Guo K, Tonn JC, Schichor C, Zhou YH, Hu Y, Pioli PD, Rajneesh K, Limoli CL, Yu L, Hess KR, Linskey ME, Faber F, Guo K, Jaeger D, Thorsteinsdottir J, Albrecht V, Tonn JC, Schichor C, Price R, Song J, Zimmerman P, Duale H, Rivera A, Kaur B, Parada L, Cook C, Chiocca EA, Kwon CH, Munoz DM, Guha A, Estrada-Bernal A, Van Brocklyn JR, Gu C, Mahasenan KV, Joshi K, Gupta S, Mattson A, Li C, Nakano I, Chi AS, Rheinbay E, Wakimoto H, Gillespie S, Kasif S, Rabkin SD, Martuza RL, Bernstein BE, Skirboll SL, Wurdak H, Zhu S, Romero A, Lorger M, Watson J, Chiang CY, Zhang J, Natu VS, Lairson LL, Walker JR, Trussell CM, Harsh GR, Vogel H, Felding-Habermann B, Orth AP, Miraglia LJ, Rines DR, Schultz PG, Hide T, Takezaki T, Nakamura H, Makino K, Kuratsu JI, Kondo T, Yao J, Kim YW, Koul D, Almeida JS, Weinstein JN, Alfred Yung WK, Joshi K, Miyazaki T, Chaudhury AR, Nakano I, Wong AJ, Del Vecchio C, Mitra S, Han SY, Holgado-Madruga M, Gupta P, Golebiewska A, Brons NH, Bjerkvig R, Niclou SP, Ramm P, Vollmann-Zwerenz A, Beier C, Aigner L, Bogdahn U, Kalbitzer HR, Hau P, Sanzey M, Golebiewska A, Vallar L, Niclou SP, Tamura K, Aoyagi M, Ando N, Ogishima T, Wakimoto H, Yamamoto M, Ohno K, Perin A, Fung KH, Longatti P, Guiot MC, Del Maestro RF, Rossi S, Stechishin O, Weiss S, Stifani S, Goodman L, Gao F, Gumin J, Ezhilarasan R, Love P, George A, Colman H, Lang F, Aldape K, Sulman EP, Soeda A, Lee DH, Shaffrey ME, Oldfield EH, Park DM, Dietrich J, Han R, Noble M, Yang MY, Liu X, Madhankumar AB, Sheehan J, Slagle-Webb B, Connor JR, Fu J, Shen RJ, Colman H, Lang FF, Alfred Yung WK, Koul D, Kaluzova M, Machaidze R, Nduom ENK, Burden CT, Hadjipanayis CG, Lei L, Sonabend A, Guarnieri P, Ludwig T, Rosenfeld S, Bruce J, Canoll P, Vaillant BD, Bhat K, Balasubramaniyam V, Wang S, Gumin J, Sulman E, Lang F, Aldape K, Colman H, Sulman EP, Ezhilarasan R, Goodman LD, Love PN, George A, Aldape K, Soules M, Zhu T, Flack C, Talsma C, Hamm L, Muraszko K, Fan X, Aoyagi M, Matsuoka Y, Tamura K, Ando N, Kawano Y, Ohno K, Kobayashi D, Kumagai J, Frank RT, Najbauer J, Aboody KS, Aboody KS, Najbauer J, Metz M, Garcia E, Aramburo S, Valenzuela V, Gutova M, Annala AJ, Barish M, Danks M, Kim SU, Portnow J, Hofstetter C, Gursel D, Mubita L, Holland E, Boockvar J, Monje M, Freret M, Masek M, Edwards MS, Fisher PG, Vogel H, Beachy P. Stem Cells. Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s18] [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] Open
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Yamazaki Y, Kawano Y. Inhibitory effect of hydroxyindoles and their analogues on human melanoma tyrosinase. ACTA ACUST UNITED AC 2010; 65:49-54. [PMID: 20355321 DOI: 10.1515/znc-2010-1-209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A recent study showed that N-acylserotonin derivatives have strong inhibitory activity against tyrosinase. To clarify the role of the 5-hydroxy group in the indole ring, 2-, 4-, 5-, 6-, and 7-hydroxyindole and 11 related compounds such as 5-hydroxyindan and 6-hydroxyquinoline were tested for their inhibition of catecholase activity of tyrosinase from human HMV-II melanoma cells. 6-Hydroxyindole (5) and 7-hydroxyindole (6) were potent inhibitors, while 5-hydroxyindole (4) was a weaker inhibitor than the above-mentioned compounds (IC50 = 20, 79, 366, and 342 microM for 5, 6, 4, and kojic acid, respectively). 2-Hydroxycarbazole was also active (IC50 = 190 microM), 5-hydroxyindan, 4-aminophenol, and harmalol were slightly active, and other compounds were inactive as an inhibitor. A similar pattern of inhibition was found with these compounds against mouse B16 melanoma tyrosinase, but with some differences from that for HMV-II tyrosinase. Kinetic analysis with HMV-II tyrosinase showed that the inhibition by hydroxyindoles 4, 5, and 6 was competitive with respect to the substrate L-DOPA. Melanin formation in HMV-II cells was suppressed by 14% with 10 microM 5 without cytotoxicity, but 30 or 100 microM 5 decreased the cell viability. The present results suggest that 6-hydroxyindole is a potential and useful pharmacophore of antimelanogenic agents and that the position of a phenolic hydroxy group in a specific heterocyclic ring such as in indole is possibly optimized to yield more active inhibitors for tyrosinase.
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Gonçalves F, Kawano Y, Ferracane J, Braga R. Influence of inorganic fraction on polymerization stress development in composites. Dent Mater 2010. [DOI: 10.1016/j.dental.2009.11.082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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