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Nakano M, Takahashi Y, Yamashita H, Kaneko H, Mimori A. SAT0313 Different Serological Profiles and Activities in Two Onset Categories of Lupus Nephritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Nakai M, Ito J, Kashiwazaki N, Men N, Tanihara F, Noguchi J, Kaneko H, Onishi A, Kikuchi K. Treatment with protein kinase C activator is effective for improvement of male pronucleus formation and further embryonic development of sperm-injected oocytes in pigs. Theriogenology 2016; 85:703-8. [DOI: 10.1016/j.theriogenology.2015.10.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 10/05/2015] [Accepted: 10/07/2015] [Indexed: 11/26/2022]
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Somfai T, Men NT, Kaneko H, Noguchi J, Haraguchi S, da Silva Santos EC, Nagai T, Kikuchi K. 46 VITRIFICATION AT THE GERMINAL VESICLE STAGE TRIGGERS PRECOCIOUS MEIOTIC RESUMPTION BUT DOES NOT AFFECT CYTOPLASMIC MATURATION IN CUMULUS-ENCLOSED PORCINE OOCYTES DURING IN VITRO MATURATION. Reprod Fertil Dev 2016. [DOI: 10.1071/rdv28n2ab46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Previously we have reported a vitrification protocol that allows preservation of immature porcine oocytes in large numbers (Somfai et al. 2014 PLoS One 9, e97731). However, despite high survival rates, embryo development rates have remained low. The aim of our current research is to reveal factors potentially responsible for reduced developmental competence of vitrified oocytes. As a first step, we investigated the effects of vitrification at the germinal vesicle stage on subsequent nuclear progression and the normality of cytoplasmic functions during in vitro maturation (IVM). Cumulus-enclosed porcine oocytes were vitrified in microdrops, stored, and then warmed by our method (Somfai et al. 2015 Reprod. Fertil. Dev. 27, 124). Then the oocytes were subjected to IVM for 46 h in a chemically defined porcine oocyte medium. During the first 22 h of IVM, the medium was supplemented with 1 mM dibutyryl cyclic adenosine monophosphate, 10 IU mL–1 of eCG, and 10 IU mL–1 of hCG. The following 24 h of IVM was performed in porcine oocyte medium without any supplementation. We compared vitrified/warmed oocytes (vitrified group) with freshly collected immature oocytes (control group) in terms of (1) nuclear progression, (2) intracellular glutathione (GSH), and (3) adenosine triphosphate levels throughout IVM. Each experiment was replicated at least 3 times. Results were analysed by one-way ANOVA and Tukey’s multiple comparison test. A total of 510 oocytes were vitrified of which 422 (82.3%) survived. Only live oocytes were subjected to subsequent assays. Orcein staining revealed that after 22 h of IVM, a significantly higher percentage (P < 0.05) of vitrified oocytes showed germinal vesicle breakdown compared with the control group (22.0 v. 0.9%, respectively). In a similar fashion, after 30 h IVM, a significantly higher (P < 0.05) percentage of oocytes reached the metaphase-II (MII) stage in the vitrified group than in the control group (21.8 v. 0%, respectively). After 46 h of IVM, there was no difference between the vitrified and control groups in terms of the percentage of MII stage oocytes (93.9 and 86.3%, respectively). Analysis of GSH levels in oocytes by the 5,5′-dithio-bis-2-nitrobenzoic acid-glutathione disulfide reductase recycling assay showed no significant difference between the vitrified and control groups at 0 h (6.7 and 7.0 pmol, respectively), 22 h (5.5 and 5.5 pmol, respectively), and 46 h (6.9 and 7.9 pmol, respectively) of IVM. Adenosine triphosphate assay (FL-ASC; Sigma-Aldrich Co., St. Louis, MO) revealed similar adenosine triphosphate contents in the oocytes of the vitrified and control groups at 0 h (1.53 and 1.61 pmol, respectively), 22 h (1.67 and 1.70 pmol, respectively), and 46 h (1.65 and 1.83 pmol, respectively) of IVM. In conclusion, vitrification triggered precocious nuclear maturation even in the presence of dibutyryl cyclic adenosine monophosphate; however, it did not affect GSH levels and overall metabolism.
This work was supported by JSPS KAKENHI (Grant Number: 26870839) and JST/JICA SATREPS.
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Yusup A, Kaneko H, Liu L, Ning L, Sadatsuki R, Hada S, Kamagata K, Kinoshita M, Futami I, Shimura Y, Tsuchiya M, Saita Y, Takazawa Y, Ikeda H, Aoki S, Kaneko K, Ishijima M. Bone marrow lesions, subchondral bone cysts and subchondral bone attrition are associated with histological synovitis in patients with end-stage knee osteoarthritis: a cross-sectional study. Osteoarthritis Cartilage 2015; 23:1858-64. [PMID: 26028139 DOI: 10.1016/j.joca.2015.05.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 05/16/2015] [Accepted: 05/20/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The aim of this study was to examine the osteoarthritis (OA)-related structural changes associated with histological synovitis in end-stage knee OA patients. METHODS Forty end-stage knee OA patients (female: 88%, mean age: 71.8 y) were enrolled. All participants underwent 3.0-T MRI. The structural changes, such as cartilage morphology, subchondral bone marrow lesion (BML), subchondral bone cyst (SBC), subchondral bone attrition (SBA), osteophytes, meniscal lesion and synovitis, were scored using the whole-organ MRI scoring (WORMS) method. Synovial samples were obtained from five regions of interest (ROIs) of the knee joint during total joint replacement surgery. The associations between the histological synovitis score (HSS) and WORMS or the synovial expression levels of cyclooxygenase (COX)-2, interleukin (IL)-1β, IL-6 and transforming growth factor (TGF)-β were examined using Spearman's correlation coefficient. RESULTS Among the seven OA-related structural changes, the BML, SBC, SBA and synovitis were significantly associated with the HSS (r = 0.33, 0.35, 0.48 and 0.36, respectively), while other morphological changes were not. Although synovial COX-2, IL-1β or IL-6 expression levels were not associated with the HSS, the synovial TGF-β expression levels were associated with the HSS. CONCLUSION The presence of BML, SBC and SBA was associated with histological synovitis in end-stage knee OA patients.
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Khan A, Kaneko H, Suzuki H, Naher S, Ahsan MH, Islam MA, Basith MA, Alam HMB, Saha DK. Magneto-structural coupling in [Formula: see text]. SPRINGERPLUS 2015; 4:468. [PMID: 26357599 PMCID: PMC4556724 DOI: 10.1186/s40064-015-1224-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 08/06/2015] [Indexed: 11/25/2022]
Abstract
[Formula: see text] compound is well Known to show the frustration of the spin structure. At 12 K, [Formula: see text] distorts to break symmetry of the degenerated frustrated spin states by the spin-Peierls-like phase transition, accompanying with the antiferromagnetic ordering. On the other hand, [Formula: see text] undergoes a Jahn-Teller phase transition at a temperature of 310 K, differing from the low temperature ferrimagnetic transition temperature [Formula: see text] of about 60 K. It is also reported that [Formula: see text] shows another magnetic phase transition at about 30 K. These two phase transitions accompanying with the lattice change can be understood by the magneto-elastic interactions. Two interactions, the Jahn-Teller interaction and the spin-Peierls-like interaction are co-exist in [Formula: see text] system. In this report the [Formula: see text] compounds with x = 0.8, 0.6 and 1 are investigated by the X-ray diffraction measurements. From these measurements the crystal structures are determined. The full width at half maximum and integrated intensity give the fruitful information for magnetic elastic interactions.
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Yamashita H, Takahashi Y, Kaneko H, Mimori A. THU0552 Ability of Tocilizumab to Inhibit Recurrence and Enable Discontinuation of Steroids in Adult-Onset Still's Disease. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Okamoto R, Kaneko H, Katsuhira J, Tanaka N. The three-dimensional shooting form analysis of archers. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.2035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kaneko H, Shiranita S, Horie J. Relationship between reduced thoracoabdominal wall mobility and respiratory function in patients with chronic obstructive pulmonary disease. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kataoka K, Matsumoto H, Kaneko H, Notomi S, Takeuchi K, Sweigard JH, Atik A, Murakami Y, Connor KM, Terasaki H, Miller JW, Vavvas DG. Macrophage- and RIP3-dependent inflammasome activation exacerbates retinal detachment-induced photoreceptor cell death. Cell Death Dis 2015; 6:e1731. [PMID: 25906154 PMCID: PMC4650542 DOI: 10.1038/cddis.2015.73] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 12/24/2014] [Accepted: 02/16/2015] [Indexed: 12/21/2022]
Abstract
Detachment of photoreceptors from the retinal pigment epithelium is seen in various retinal disorders, resulting in photoreceptor death and subsequent vision loss. Cell death results in the release of endogenous molecules that activate molecular platforms containing caspase-1, termed inflammasomes. Inflammasome activation in retinal diseases has been reported in some cases to be protective and in others to be detrimental, causing neuronal cell death. Moreover, the cellular source of inflammasomes in retinal disorders is not clear. Here, we demonstrate that patients with photoreceptor injury by retinal detachment (RD) have increased levels of cleaved IL-1β, an end product of inflammasome activation. In an animal model of RD, photoreceptor cell death led to activation of endogenous inflammasomes, and this activation was diminished by Rip3 deletion. The major source of Il1b expression was found to be infiltrating macrophages in the subretinal space, rather than dying photoreceptors. Inflammasome inhibition attenuated photoreceptor death after RD. Our data implicate the infiltrating macrophages as a source of damaging inflammasomes after photoreceptor detachment in a RIP3-dependent manner and suggest a novel therapeutic target for treatment of retinal diseases.
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Oda M, Azuma T, Watanabe N, Nishizaki Y, Nishida J, Ishii K, Suzuki H, Kaneko H, Komatsu H, Tsukada N, Tsuchiya M. Regulatory Mechanism of Hepatic Microcirculation: Involvement of the Contraction and Dilatation of Sinusoids and Sinusoidal Endothelial Fenestrae1. PROGRESS IN APPLIED MICROCIRCULATION 2015. [DOI: 10.1159/000418654] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Somfai T, Men NT, Kaneko H, Noguchi J, Haraguchi S, Nagai T, Kikuchi K. 62 COMPARISON OF SUGARS, COMBINATIONS OF PERMEABLE CRYOPROTECTANTS, AND EQUILIBRATION REGIMENS FOR THE SOLID SURFACE VITRIFICATION OF IMMATURE PORCINE OOCYTES. Reprod Fertil Dev 2015. [DOI: 10.1071/rdv27n1ab62] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cryotop and solid surface vitrification are frequently used methods for the cryopreservation of porcine oocytes. These methods differ not only in the vitrification carrier but also in the cryoprotectant (CPA) treatment including the type of sugar, permeable CPA (pCPA) combinations, and the equilibration regimen. This study compared the distinct points of CPA treatment of these 2 methods to determine the optimum CPA treatment for the solid surface vitrification of immature porcine oocytes. We vitrified and warmed follicular cumulus-oocyte complexes by our method (Somfai et al. 2014 PLoS One 9, e97731). In each experiment, the vitrification solution consisted of 50 mg mL–1 polyvinyl pyrrolidone, 0.3 M of the actual sugar, and 35% [v/v] in total of the actual pCPA combination (depending on the experiment). After warming, the cumulus-oocyte complexes were subjected to in vitro maturation, IVF, and embryo culture (Kikuchi et al. 2002 Biol. Reprod. 66, 1033–1041). Oocyte survival was assessed after IVF by morphological evaluation, and live oocytes were subjected to in vitro embryo culture. Cleavage and blastocyst rates were calculated from cultured oocytes on Day 2 (Day 0 = IVF) and Day 6, respectively. Each experiment was replicated at least 3 times. Results were analysed by ANOVA. In Experiment 1, we compared trehalose (n = 416) and sucrose (n = 440) as supplementations during vitrification and warming (0.3 M and 0.4 M of each, respectively). There was no significant difference between oocytes vitrified with trehalose or sucrose in terms of survival, cleavage, and blastocyst development (83.2% v. 80.3%, 39.7% v. 42.4%, and 3.6% v. 5.9%, respectively). Thus, vitrification and warming media were supplemented with sucrose thereafter. In Experiment 2, we compared 1 : 1 combinations of ethylene glycol with propylene glycol (EG+PG group, n = 452) and ethylene glycol with dimethyl sulfoxide (EG+DMSO group, n = 465) used as pCPA for equilibration (4% [v/v] pCPA in total for 15 min) and vitrification (35% [v/v] pCPA in total for 30 s). Oocyte survival rate was higher (P < 0.05) in the EG+PG group compared with the EG+DMSO group (73.8% v. 51.1%, respectively); however, cleavage and blastocyst development rates of surviving oocytes were not significantly different between the 2 groups (30.5% v. 44.5% and 4.1% v. 6.3%, respectively). In Experiment 3, we compared an equilibration treatment in 4% [v/v] of EG+PG for 13 to 15 min (regimen A, n = 368) with an equilibration in 15% [v/v] of EG+PG for 5 to 7 min (regimen B, n = 363) for oocyte vitrification. Survival, cleavage, and blastocyst development rates were higher (P < 0.01) for oocytes vitrified using regimen A compared with those vitrified using regimen B (82.5% v. 22.7%, 24.0% v. 7.7%, and 3.2% v. 0%, respectively). In conclusion, trehalose and sucrose are equally effective during vitrification and warming, the combination of EG+PG as pCPA is superior to EG+DMSO, and equilibration in 4% pCPA for 13 to 15 min is superior to that in 15% pCPA for 5 to 7 min for the vitrification of immature porcine oocytes.This work was partly supported by JSPS KAKENHI Grant Number 26870839.
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Kaneko H, Kitoh H, Mishima K, Matsushita M, Kadono I, Ishiguro N, Hattori T. Factors associated with an unfavourable outcome after Salter innominate osteotomy in patients with unilateral developmental dysplasia of the hip: does occult dysplasia of the contralateral hip affect the outcome? Bone Joint J 2014; 96-B:1419-23. [PMID: 25274931 DOI: 10.1302/0301-620x.96b10.34263] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Salter innominate osteotomy is an effective reconstructive procedure for the treatment of developmental dysplasia of the hip (DDH), but some children have a poor outcome at skeletal maturity. In order to investigate factors associated with an unfavourable outcome, we assessed the development of the contralateral hip. We retrospectively reviewed 46 patients who underwent a unilateral Salter osteotomy at between five and seven years of age, with a mean follow-up of 10.3 years (7 to 20). The patients were divided into three groups according to the centre-edge angle (CEA) of the contralateral hip at skeletal maturity: normal (> 25°, 22 patients), borderline (20° to 25°, 17 patients) and dysplastic (< 20°, 7 patients). The CEA of the affected hip was measured pre-operatively, at eight to nine years of age, at 11 to 12 years of age and at skeletal maturity. The CEA of the affected hip was significantly smaller in the borderline and dysplastic groups at 11 and 12 years of age (p = 0.012) and at skeletal maturity (p = 0.017) than in the normal group. Severin group III was seen in two (11.8%) and four hips (57.1%) of the borderline and dysplastic groups, respectively (p < 0.001). Limited individual development of the acetabulum was associated with an unfavourable outcome following Salter osteotomy.
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Hada S, Kaneko H, Sadatsuki R, Liu L, Futami I, Kinoshita M, Yusup A, Saita Y, Takazawa Y, Ikeda H, Kaneko K, Ishijima M. The degeneration and destruction of femoral articular cartilage shows a greater degree of deterioration than that of the tibial and patellar articular cartilage in early stage knee osteoarthritis: a cross-sectional study. Osteoarthritis Cartilage 2014; 22:1583-9. [PMID: 25278068 DOI: 10.1016/j.joca.2014.07.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 07/20/2014] [Accepted: 07/24/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The aim of the present study was to examine whether the degenerative and morphological changes of articular cartilage in early stage knee osteoarthritis (OA) occurred equally for both femoral- and tibial- or patellar- articular cartilage using magnetic resonance imaging (MRI)-based analyses. DESIGN This cross-sectional study was approved by the ethics committee of our university. Fifty patients with early stage painful knee OA were enrolled. The patients underwent 3.0 T MRI on the affected knee joint. Healthy volunteers who did not show MRI-based OA changes were also recruited as controls (n = 19). The degenerative changes of the articular cartilage were quantified by a T2 mapping analysis, and any structural changes were conducted using Whole Organ Magnetic Resonance Imaging Score (WORMS) technique. RESULTS All patients showed MRI-detected OA morphological changes. The T2 values of femoral condyle (FC) (P < 0.0001) and groove (P = 0.0001) in patients with early stage knee OA were significantly increased in comparison to those in the control, while no significant differences in the T2 values of patellar and tibial plateau (TP) were observed between the patients and the control. The WORMS cartilage and osteophyte scores of the femoral articular cartilage were significantly higher than those in the patellar- (P = 0.001 and P = 0.007, respectively) and tibial- (P = 0.0001 and P < 0.0001, respectively) articular cartilage in the patients with early stage knee OA. CONCLUSIONS The degradation and destruction of the femoral articular cartilage demonstrated a greater degree of deterioration than those of the tibial- and patellar- articular cartilage in patients with early stage knee OA.
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Washizawa N, Oshima Y, Miura Y, Nagashima Y, Gocho K, Shimada H, Kaneko H. LB001-MON: Experimental Research About the Device and Prevention of Transmission Which were Added to the Container Bag. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50659-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Washizawa N, Oshima Y, Ito M, Suzuki T, Yajima S, Yajima T, Tsuchiya M, Shimada H, Kaneko H. LB032-SUN: Correlation of DXA and BIA in Lean Body Mass Measurement in Stomach Cancer Patients Before Operations. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50658-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Onozawa K, Kaneko H, Yano H, Abe H. Bilateral lipomas of the tongue. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kanari K, Kaneko H. Influence of spatial structure with no explicit luminance information on lightness perception. J Vis 2014. [DOI: 10.1167/14.10.73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Yamashita H, Kubota K, Takahashi Y, Kaneko H, Kano T, Mimori A. AB0970 Utility of Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography for Early Diagnosis and Evaluation of Disease Activity of Relapsing Polychondritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Yamashita H, Takahashi H, Kubota K, Ueda Y, Ozaki T, Yorifuji H, Bannai E, Minamimoto R, Morooka M, Miyata Y, Okasaki M, Takahashi Y, Kaneko H, Kano T, Mimori A. Utility of fluorodeoxyglucose positron emission tomography/computed tomography for early diagnosis and evaluation of disease activity of relapsing polychondritis: a case series and literature review. Rheumatology (Oxford) 2014; 53:1482-90. [DOI: 10.1093/rheumatology/keu147] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Yamashita H, Shimizu A, Tsuchiya H, Takahashi Y, Kaneko H, Kano T, Mimori A. Chronic active Epstein-Barr virus infection mimicking autoimmune hepatitis exacerbation in a patient with systemic lupus erythematosus. Lupus 2014; 23:833-6. [PMID: 24608961 DOI: 10.1177/0961203314527367] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 02/17/2014] [Indexed: 11/16/2022]
Abstract
Chronic active Epstein-Barr virus infection (CAEBV) is characterized by chronic infectious mononucleosis-like symptoms. We report a very rare case with autoimmune hepatitis (AIH) complicated by CAEBV. A 50-year-old woman with systemic lupus erythematosus (SLE) complicated by AIH began to suffer from acute respiratory failure and her clinical symptoms improved rapidly in response to steroid treatment. However, during the gradual tapering of the steroid dose, a steady increase of the serum hepatobiliary enzyme levels subsequently was observed and the patient began to have continuous fever. Moreover, upper gastrointestinal endoscopy revealed multiple intractable gastric ulcers. When EBER-ISH was performed on liver biopsy and gastric mucosal biopsy specimens, EBER-positive lymphocytes were observed. When peripheral blood was examined, 2.1 × 10(6) copies/µg of EBV-DNA were observed in the CD4-positive T cells, confirming the diagnosis of CAEBV. A cooling therapy was started by steroid and cyclosporine. Thereafter, despite the start of CHOP therapy, she developed a malignant lymphoma (PTCL-NOS) and died of hepatic failure. When treatment-resistant AIH patients are encountered, not only AIH exacerbation but also CAEBV should be considered in the differential diagnosis.
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Tokano Y, Ogasawara H, Ando S, Fujii T, Kaneko H, Tamura N, Yano T, Hirokawa K, Fukazawa T, Murashima A, Kobayashi S, Sekigawa I, Takasaki Y, Iida N, Hashimoto H. Cyclosporin A therapy for interstitial pneumonitis associated with rheumatic disease. Mod Rheumatol 2014; 12:305-10. [DOI: 10.3109/s101650200054] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Somfai T, Kikuchi K, Yoshioka K, Tanihara F, Kaneko H, Noguchi J, Haraguchi S, Nagai T. 44 PRODUCTION OF LIVE PIGLETS AFTER CRYOPRESERVATION OF IMMATURE PORCINE OOCYTES. Reprod Fertil Dev 2014. [DOI: 10.1071/rdv26n1ab44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Development to term of vitrified porcine follicular oocytes is reported in the present study. Immature cumulus-oocyte complexes (COC) were collected from slaughtered prepubertal gilts and were vitrified according to our method published recently (Somfai et al. 2013 J. Reprod. Dev., in press). Briefly, after pretreatment with 7.5 μg mL–1 of cytochalasin B (CB) for 30 min in modified NCSU-37 (a basic medium, BM) at 38.5°C, groups of 88 to 121 COC were equilibrated in a mixture of 2% ethylene glycol (EG), 2% propylene glycol (PG), and 7.5 μg mL–1 CB for 13 to 15 min. Then, COC were washed in vitrification solution (17.5% EG, 17.5% PG, 5% polyvinyl pyrrolidone, and 0.3 M trehalose in BM) and then dropped with 2 μL of vitrification solution onto the surface of aluminum foil floating on liquid nitrogen (LN2). Microdroplets (each containing 10–25 COC) were transferred into cryotubes. After storage in LN2 for 2 to 4 weeks, the oocytes were warmed by dropping the microdroplets directly into 2.5 mL of warming solution (0.4 M trehalose in BM) kept in a 35-mm Petri dish on a 42°C hotplate for less than 1 min. Then, the warming dish was placed on a 38°C hotplate and COC were consecutively transferred for 1-min periods into BM containing 0.2, 0.1, or 0.05 M trehalose at 38°C. The COC were matured in vitro for 44 h using porcine oocyte medium (POM) supplemented with 10% follicular fluid (Yoshioka et al. 2008 J. Reprod. Dev. 54, 208–213). Then, oocytes were denuded, and their live/dead status and nuclear maturation were determined by their morphology and the presence of the first polar body, respectively. To assess their developmental competence, vitrified and non-vitrified (control) oocytes were in vitro fertilized (IVF; Kikuchi et al. 2002 Biol. Reprod. 66, 1033–1041) and then in vitro cultured in porcine zygote medium-5 (PZM-5; Yoshioka et al. 2008 J. Reprod. Dev. 54, 208–213). Blastocyst rates were recorded on Days 5, 6, and 7 of culture (Day 0 = the day of IVF). The experiment was replicated 4 times. Data were analysed with 1-way ANOVA and the Tukey test. The results revealed that 86.4% (364/424) of oocytes survived after vitrification, which was significantly lower (P < 0.05) than that of controls [100% (326/326)]. Live oocytes in vitrified and control groups did not differ statistically in terms of nuclear maturation (63.9 v. 65.3%). Blastocyst rates of surviving vitrified oocytes were significantly lower compared with controls on Days 5 (2.4 v. 12.7%), 6 (4.8 v. 17.6%), and 7 (5.6 v. 18.4%). To test their ability to develop to term, 16 and 27 blastocysts on Day 5 developing from vitrified COC were transferred into 2 recipients. Both recipients became pregnant and farrowed a total of 10 live piglets (4 and 6 piglets, respectively). These data demonstrate that large groups of immature porcine oocytes could be cryopreserved by this method showing high survival and maturation rates. Furthermore, despite a low rate of blastocyst development, transfer of Day-5 blastocysts generated from vitrified oocytes resulted in piglet production for the first time in the world.
Partially supported by JSPS and HAS under the Japan-Hungary Research Cooperative Program.
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Kaneko H, Funatsu K. Erratum: Development of high predictive soft sensor method and the application to industrial polymer processes [Asia-Pac. J. Chem. Eng. 7, S39-S47 (2012)]. ASIA-PAC J CHEM ENG 2013. [DOI: 10.1002/apj.1770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kaneko H, Arakawa M, Funatsu K. Erratum for “Development of a New Regression Analysis Method Using Independent Component Analysis”. J Chem Inf Model 2013. [DOI: 10.1021/ci400566e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kaneko H. Estimating Breathing Movements of the Chest and Abdominal Wall Using a Simple, Newly Developed Breathing Movement-Measuring Device. Respir Care 2013; 59:1133-9. [PMID: 24222705 DOI: 10.4187/respcare.02778] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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