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Yin E, Uchiyama M, Jin X, Kawai K, Takao M, Niimi M. More Hippocampal Weight and Cells in Cardiac Allograft Transplanted Mice. Transplant Proc 2018; 50:2798-2803. [PMID: 30401400 DOI: 10.1016/j.transproceed.2018.03.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 02/27/2018] [Accepted: 03/15/2018] [Indexed: 10/17/2022]
Abstract
The hippocampus is a brain structure that plays a fundamental role in memory and learning. Many animal studies have demonstrated that the structure of the hippocampus has evolved through exercise and play. However, little is known on the relationship between the brain and immunological reaction. In this study, we investigated the correlation between the weight of the hippocampus and transplant immunology in a murine heart transplant model. Fully vascularized heterotopic hearts from CBA (H2k, allogeneic group) or C57BL/6 (H2b, syngeneic group) donors were transplanted into C57BL/6 recipients by using microsurgical techniques. The weights of the whole brain and hippocampus from syngeneic and allogeneic groups were recorded 1, 2, and 4 weeks after grafting, and histologic assessments were performed. The syngeneic group maintained beating cardiac grafts for over 30 days, but the allogeneic group rejected CBA cardiac allografts acutely within 8 days. The average weight of whole brain from syngeneic and allogeneic group 1, 2, and 4 weeks had no significant differences. However, the average weight of hippocampus at 2 and 4 weeks was considerably increased in the allogeneic group compared with the syngeneic group. Histologic assessments with hematoxylin-eosin and Kluver-Barrera staining of hippocampus from allogeneic group 1 week after grafting demonstrated a greater number of granule and pyramidal cells in the hippocampus. Alloimmune responses in our model increase the weight of hippocampus.
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Yin E, Matsuyama S, Uchiyama M, Kawai K, Hara M, Imazuru T, Kono M, Niimi M. Administration of Thrombomodulin (CD141) Could Improve Cardiac Allograft Survival in Mice. Transplant Proc 2018; 50:2794-2797. [PMID: 30401399 DOI: 10.1016/j.transproceed.2018.02.204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 02/19/2018] [Indexed: 11/28/2022]
Abstract
Thrombomodulin (TM) is a promising natural anti-coagulant therapeutic protein that is effective in the treatment of disseminated intravascular coagulation. However, the mechanisms by which TM on micro-vessels enable the regulation of intimal hyperplasia remain elusive. We investigated the graft-protective effects of TM in a fully major histocompatibility complex-mismatched murine cardiac allograft transplantation model. CBA recipients transplanted with a C57BL/6 heart received intraperitoneal administration of 0.2, 2.0, and 20.0 μg/day of TM for 8 days. Histological staining was conducted to assess the degree of inflammation and infiltration in the transplanted cardiac grafts. Untreated CBA recipients rejected C57BL/6 cardiac grafts acutely (median survival time [MST] was 7 days). CBA recipients exposed to the above dosages had significantly prolonged allograft survival (MSTs were 16, 21, and 37.5 days, respectively). Histologic assessments from TM-exposed recipients 2 weeks after grafting showed that the myocardium and vessel structure in their allografts were clearly preserved, and that the infiltration of inflammatory cells around coronary arteries was suppressed. TM can induce the prolongation of fully major histocompatibility complex-mismatched cardiac allograft by exerting graft protective effects within the myocardium and coronary arteries.
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Miyake H, Murono K, Kawai K, Hata K, Tanaka T, Nishikawa T, Otani K, Sasaki K, Kaneko M, Emoto S, Nozawa H. Evaluation of the vascular anatomy of the left-sided colon focused on the accessory middle colic artery: a single-centre study of 734 patients. Colorectal Dis 2018; 20:1041-1046. [PMID: 29877028 DOI: 10.1111/codi.14287] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/14/2018] [Indexed: 12/17/2022]
Abstract
AIM Surgery for colorectal cancer located in the splenic flexure is difficult to perform because of the complex anatomy. Recently, in addition to the middle colic artery and left colic artery (LCA), the accessory middle colic artery (AMCA) has been recognized as a feeding artery for the left-sided colon. This study aimed to evaluate the vascular anatomy of the splenic flexure focusing on the AMCA in a large number of patients. METHOD A total of 734 patients who underwent CT before surgery for colorectal cancer were enrolled. We retrospectively evaluated the vascular anatomy using both two- and three-dimensional CT angiography. RESULTS The AMCA existed in 36.4% of the cases (n = 267). In many cases, it originated from the superior mesenteric artery (n = 228, 85.4%). The AMCA had a common trunk with the transverse pancreatic artery in 54 patients (20.2%). The frequency of the presence of the AMCA was associated with the branching pattern of the LCA, and was more frequent when the LCA was absent (P < 0.001). CONCLUSION The presence of the AMCA is not rare and the AMCA has some branching patterns; therefore, recognizing it preoperatively and intra-operatively is important, being especially careful when the LCA is absent.
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Hiraoka K, Ishikawa T, Kawai K, Harada T. Piezo-ICSI. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shinozuka Y, Kawai K, Sato R, Higashitani A, Ueno D, Okita M, Isobe N. Effect of intramammary lipopolysaccharide infusion on milk pH of uninfused udder in goat. J Vet Med Sci 2018; 80:1287-1290. [PMID: 29910225 PMCID: PMC6115263 DOI: 10.1292/jvms.18-0280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The change in milk composition in response to intramammary infusion of
Escherichia coli lipopolysaccharide (LPS) was investigated. Four
clinically healthy goats were infused with LPS (100 µg) by intramammary
administration to the left udder. Clinical manifestations (rectal temperature and physical
activity), selected blood parameters (pH and white blood cell count) and milk compositions
(somatic cell count and pH) were evaluated at 0 hr (just before challenge) and at multiple
time points over the first 24 hr post-challenge. After intramammary LPS challenge, the pH
of milk from both udders increased. Thus, this study revealed that LPS-induced mastitis in
goat can result in increased pH in milk from the unchallenged (contralateral) udder.
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Miki K, Yanaka K, Yoshihara N, Kawai K, Imanaka T, Akahori H, Masuyama T, Ishihara M. P3569Predictive value of vessel size for the long-term patency following self-expanding nitinol stent implantation in the superficial femoral artery. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3569] [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: 11/13/2022] Open
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Imanaka T, Fujii K, Kawai K, Akahori H, Miki K, Yoshihara N, Yanaka K, Kawakami R, Masuyama T, Ishihara M. P758Ex vivo comparison of optical coherence tomography and histopathology for detecting strut coverage within 3 months after new-generation drug-eluting stent implantation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p758] [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: 11/14/2022] Open
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Arakawa K, Kawai K, Tanaka T, Hata K, Sugihara K, Nozawa H. Prognostic impact of interhospital variation in adjuvant chemotherapy for patients with Stage II/III colorectal cancer: a nationwide study. Colorectal Dis 2018; 20:O162-O172. [PMID: 29752849 DOI: 10.1111/codi.14260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 04/16/2018] [Indexed: 12/22/2022]
Abstract
AIM Clinical guidelines recommend adjuvant chemotherapy for high-risk patients with Stage II-III colorectal cancer. However, chemotherapeutic administration rates differ significantly between hospitals. We assessed the prognostic benefit of adjuvant chemotherapy in patients with Stage IIb/c colorectal cancer, and the prognostic impact of interhospital variations in the administration of adjuvant chemotherapy for Stage II-III colorectal cancer. METHOD We conducted a multicentre, retrospective study of 17 757 patients with Stage II-III colorectal cancer treated between 1997 and 2008 in 23 hospitals in Japan. Hospitals were classified as high-rate (rate > 42.8%) or low-rate (rate ≤ 42.8%), chemotherapy prescribing clinics. RESULTS The 5-year overall survival (OS) of patients with Stage II-III colorectal cancer receiving adjuvant chemotherapy was significantly higher than for those not receiving adjuvant chemotherapy (85.7% vs 79.2%, P < 0.01 and 79.9% vs 72.5%, P < 0.01, respectively). For patients with Stage II disease, adjuvant chemotherapy was an independent factor for longer OS (P < 0.01, hazard ratio = 0.71). Both adjuvant chemotherapy and high-rate hospital independently improved OS for patients with Stage III colorectal cancer (both P < 0.01; hazard ratio = 0.68 and 0.87, respectively). CONCLUSION Significant prognostic benefit was found for patients with Stage IIb/c colorectal cancer who received adjuvant chemotherapy, with patients who were treated in hospitals with high adjuvant chemotherapy rates demonstrating better prognoses.
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Suetomi T, Tsujimoto I, Kurobe M, Ikeda A, Ishitsuka R, Kimura T, Waku N, Kojima T, Johraku A, Kawai K, Nishiyama H. 247 Correlation between testosterone to estradiol ratio and score on the aging males’ symptom scale in late-onset hypogonadism. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kawai K, Takarada W, Kikutani T. Effect of Mutual Interaction between High and Low Stereo-Regularity Components on Structure Formation in Melt Spinning Process of Isotactic Polypropylene Blend Fibers. INT POLYM PROC 2018. [DOI: 10.3139/217.3576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Fiber formation behavior of the blend fibers consisting of two types of isotactic polypropylene (iPP), i. e. high stereo-regularity/high molecular weight iPP (HPP) and low stereo-regularity/low molecular weight iPP (LPP), was investigated. In the melt spinning of blend fibers of various HPP:LPP compositions, the spinnability was improved significantly not only by blending LPP into HPP but also by blending HPP into LPP. On-line diameter measurement of the spin-line revealed that the increase of LPP composition caused the shift of solidification point to downstream, indicating that the crystallization temperature was lowered. Wide-angle X-ray diffraction (WAXD) analysis of the as-spun fibers clarified that only the α-form crystal was formed, and the crystalline orientation increased with the increases of take-up velocity and HPP weight fraction. The crystallinities obtained from the WAXD patterns of the as-spun fibers of various HPP/LPP compositions prepared at the take-up velocity of 1 and 5 km/min were lower than the values estimated based on the rule of additivity, where the difference was more prominent for the 1 km/min fibers. Analyses of crystallinity through differential scanning calorimetry measurements also suggested the suppression of the crystallization of HPP in the HPP/LPP blend fibers. The thermal analyses basically clarified that in the melt spinning process of the blends of HPP and LPP, both components crystallized independently even though the two polymers are considered to be miscible in the molten state, however, detailed analyses of melting behavior of the as-spun fibers suggested the possibility of the formation of crystals with a certain level of mixing of the HPP and LPP molecules, i. e. the mixing of a certain amount of LPP molecules into the HPP crystals and also the mixing of a certain amount of HPP molecules into the LPP crystals.
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Shinozuka Y, Kawai K, Takeda A, Yamada M, Kayasaki F, Kondo N, Sasaki Y, Kanai N, Mukai T, Sawaguchi N, Higuchi M, Kondo H, Sugimoto K, Yasuda A, Watanabe A. Randomized clinical trial to evaluate the effectiveness of enrofloxacin as a second-line antibiotic for treatment of acute Escherichia coli mastitis. Anim Sci J 2018; 89:1033-1039. [PMID: 29766599 DOI: 10.1111/asj.13025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 01/30/2018] [Indexed: 01/14/2023]
Abstract
The objective of the present study was to evaluate the effectiveness of enrofloxacin (ERFX) as a second-line antibiotic for treatment of acute Escherichia coli (E. coli) mastitis. Forty-two cows with naturally occurring acute E. coli mastitis were enrolled. On the first day of treatment (day 0), empirically selected antibiotics (oxytetracycline: n = 32, kanamycin: n = 10) were administered. Although systemic signs improved in 10 cows (first-line group), the signs remained unchanged or worsened in 32 cows on day 1, including two cows that were found dead. The 30 surviving cows were randomly assigned to second-line groups constituting an ERFX group (n = 19) or a control group (n = 11) that was treated with other antibiotics. Response to each treatment was evaluated by measuring clinical signs from day 0 to day 3, subsequent quarter milk recovery, and the 60-day survival rate. Appetite on day 3 was significantly better in the ERFX group compared to the control group. No significant differences were observed in the 60-day survival rate or the subsequent milk recovery between the ERFX group and the control group. Thus, the use of ERFX as a second-line antibiotic for the treatment of acute E. coli mastitis could induce a rapid appetite recovery.
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Ishihara S, Kawai K, Tanaka T, Kiyomatsu T, Hata K, Nozawa H, Morikawa T, Watanabe T. Diagnostic value of FDG-PET/CT for lateral pelvic lymph node metastasis in rectal cancer treated with preoperative chemoradiotherapy. Tech Coloproctol 2018; 22:347-354. [DOI: 10.1007/s10151-018-1779-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 01/19/2018] [Indexed: 02/06/2023]
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Shinozuka Y, Kawai K, Sato R, Higashitani A, Hamamoto Y, Okita M, Isobe N. Blood ionized calcium levels and acute-phase blood glucose kinetics in goats after intramammary infusion of lipopolysaccharide. J Vet Med Sci 2018; 80:242-246. [PMID: 29311427 PMCID: PMC5836759 DOI: 10.1292/jvms.17-0615] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The aim of this study was to determine the blood ionized calcium (Ca) levels and
acute-phase blood glucose kinetics in goats with mastitis induced by an intramammary
challenge of lipopolysaccharide (LPS). Five goats were subjected to intramammary challenge
of either LPS (10 µg) or saline (control). Some clinical manifestations
(rectal temperature, pulse rate, respiration rate, ruminal motility, physical activity,
and dehydration) were observed, and blood was collected for the measurement of several
parameters [ionized and total Ca levels, blood glucose level, pH, and white blood count
(WBC)] at 0 (just before challenge), 1–4, 6, 8, 12 and 24 hr post-challenge in both the
LPS and control phases. Milk was collected at 0 (just before challenge), 4, 8, 12 and 24
hr post-challenge to measure the somatic cell count (SCC) and
N-acetyl-beta-D-glucosaminidase (NAGase) activity. In the LPS phase, increased rectal
temperature, significantly decreased ionized Ca and total Ca levels and WBCs were observed
compared with those at 0 hr, although there were no differences in all parameters between
phases. LPS infusion significantly increased SCCs in milk and NAGase activity. The present
results demonstrated that, during the acute phase of mastitis induced by intramammary
challenge by LPS at a concentration sufficient to cause general symptoms in goats, a
decreased blood ionized Ca level occurs, but not hypoglycemia.
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Otani K, Nozawa H, Kiyomatsu T, Kawai K, Hata K, Tanaka T, Nishikawa T, Sasaki K, Kaneko M, Murono K, Emoto S, Watanabe T. Laparoscopic Deloyers procedure to facilitate primary anastomosis after extended resection for synchronous cancers of transverse colon and rectum: easy to preform with good functional outcome. Tech Coloproctol 2017; 21:975-976. [DOI: 10.1007/s10151-017-1715-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 10/30/2017] [Indexed: 11/30/2022]
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Kawai K, Inada M, Ito K, Hashimoto K, Nikaido M, Hata E, Katsuda K, Kiku Y, Tagawa Y, Hayashi T. Detection of bovine mastitis pathogens by loop-mediated isothermal amplification and an electrochemical DNA chip. J Vet Med Sci 2017; 79:1973-1977. [PMID: 29093278 PMCID: PMC5745174 DOI: 10.1292/jvms.17-0263] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Bovine mastitis causes significant economic losses in the dairy industry. Effective prevention of bovine mastitis requires an understanding of the infection status of a pathogenic microorganism in a herd that has not yet shown clinical signs of mastitis and appropriate treatment specific for the pathogenic microorganism. However, bacterial identification by culture has drawbacks in that the sensitivity may be low and the procedure can be complex. In this study, we developed a genetic detection method to identify mastitis pathogens using a simple and highly sensitive electrochemical DNA chip which can specifically detect bacterial DNA in milk specimens. First, we selected microorganisms belonging to 12 families and/or genera associated with mastitis for which testing should be performed. Next, we optimized the conditions for amplifying microorganism DNA by loop-mediated isothermal amplification (LAMP) using 32 primers and the use of a DNA chip capable of measuring all pathogens simultaneously. Sample detection could be completed in just a few hours using this method. Comparison of the results obtained with our DNA chip method and those obtained by bacterial culture verified that when the culture method was set to 100%, the total positive concordance rate of the DNA chip was 85.0% and the total negative concordance rate was 86.9%. Furthermore, the proposed method allows both rapid and highly sensitive detection of mastitis pathogens. We believe that this method will contribute to the development of an effective mastitis control program.
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Baba N, Fujii K, Ibusuki A, Higashi Y, Kawai K, Kanekura T. Secondary skin involvement by systemic de novo CD5-positive diffuse large B-cell lymphoma. J Dermatol 2017; 45:e15-e16. [PMID: 29044655 DOI: 10.1111/1346-8138.14082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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67
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Sato R, Kanai E, Kitahara G, Noguchi M, Kawai K, Shinozuka Y, Tsukamoto A, Ochiai H, Onda K, Steiner A. Transrectal guidance of the ovaries reduces operative time during bovine laparoscopic ovariectomy. J Vet Med Sci 2017; 79:2019-2022. [PMID: 29033408 PMCID: PMC5745182 DOI: 10.1292/jvms.17-0449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The main objective of this study was to evaluate the effects of transrectal guidance of
the ovaries by an assistant on operative time during bovine laparoscopic ovariectomy.
Twenty four clinically healthy Holstein dairy cows were divided randomly into two groups.
In the transrectal guidance group, an assistant grasped the ovaries via the transrectal
route and pulled them to a position where they could be visualized with a camera. On the
other hand, the control group was operated without guidance. The time required to remove
both ovaries in the guidance group was shorter than that in the control group
(P<0.01). We concluded that laparoscopic ovariectomy with
transrectal guidance of the ovaries can substantially shorten operative time, thereby
greatly contributing to animal welfare and to reducing the burden on the operator.
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Nosaka K, Iwanaga M, Imaizumi Y, Ishitsuka K, Ishizawa K, Ishida Y, Amano M, Ishida T, Uike N, Utsunomiya A, Ohshima K, Kawai K, Tanaka J, Tokura Y, Tobinai K, Watanabe T, Uchimaru K, Tsukasaki K. Epidemiological and clinical features of adult T-cell leukemia-lymphoma in Japan, 2010-2011: A nationwide survey. Cancer Sci 2017; 108:2478-2486. [PMID: 28905463 PMCID: PMC5715256 DOI: 10.1111/cas.13398] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/07/2017] [Accepted: 09/09/2017] [Indexed: 12/21/2022] Open
Abstract
Adult T-cell leukemia-lymphoma (ATL) is a mature T-cell malignancy associated with human T-cell leukemia virus type 1 (HTLV-1) infection. Japan is the most endemic country for HTLV-1 and ATL in the world. Recent nationwide studies of Japanese blood donors reported that HTLV-1 carriers spread from endemic areas to non-endemic areas. Therefore, the latest information on nationwide epidemiological and clinical data for ATL is necessary to guide clinical practice. We undertook a multicenter, hospital-based survey of newly diagnosed ATL patients from 2010 to 2011. A total of 996 patients with ATL were registered from 126 hospitals across Japan. Of those, 922 (487 men and 435 women) were included in the analysis. The median age at diagnosis was 68 years (interquartile range, 60-75 years). Overall, 67.2% of ATL was diagnosed in the Kyushu-Okinawa area. The most common subtype was acute (49.5%), followed by lymphoma (25.7%), chronic (14.2%), and smoldering (10.6%). Lymphoma type was more prevalent in men (60%), whereas chronic was more prevalent in women (60%). Half of patients with lymphoma type were aged over 70 years, whereas one-third of patients with the chronic type were aged under 60 years. All of these characteristics were different from those of the previous nationwide surveys in the 1980s and 1990s. This survey clarified that half of current patients with ATL are aged over 68 years who were unable to receive intensive cytotoxic therapies. New less toxic agents for aged patients and further strategies to prevent the development of ATL from HTLV-1 carrier status are needed.
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Iguchi Y, Eid L, Parent M, Riku Y, Kawai K, Yoshida M, Katsuno M, Sobue G, Julien J. The role of TDP-43 secretion in association with exosomes. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hiraoka K, Otsuka Y, Ishikawa T, Kawai K, Harada T. Effect the sperm selection magnification (400x vs 1,200x) on fertilization results and embryo development in human Piezo-ICSI. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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71
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Miki K, Fujii K, Yoshihara N, Kawai K, Imanaka T, Akahori H, Honda Y, Fitzgerald P, Masuyama T, Ishihara M. P5218Influence of analysis interval size on optical coherence tomography assessments of stent therapy for superficial femoral artery lesions. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5218] [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: 11/13/2022] Open
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72
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Kawai K, Shinozuka Y, Uchida I, Hirose K, Mitamura T, Watanabe A, Kuruhara K, Yuasa R, Sato R, Onda K, Nagahata H. Control of Pseudomonas mastitis on a large dairy farm by using slightly acidic electrolyzed water. Anim Sci J 2017; 88:1601-1605. [PMID: 28516730 DOI: 10.1111/asj.12815] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 01/23/2017] [Indexed: 11/28/2022]
Abstract
The disinfection effect of slightly acidic electrolyzed water (SAEW) use in a farm where Pseudomonas mastitis has spread was evaluated. Despite the application of antibiotic therapy and complete cessation of milking infected quarters, numerous new and recurrent Pseudomonas aeruginosa clinical mastitis infections (5.8-7.1% of clinical mastitis cases) occurred on the farm from 2003 to 2005. Procedural changes and equipment modifications did not improve environmental contamination or the incidence of Pseudomonas mastitis. To more thoroughly decontaminate the milking parlor, an SAEW system was installed in 2006. All milking equipment and the parlor environment were sterilized with SAEW (pH 5-6.5, available chlorine 12 parts per million) before and during milking time. After adopting the SAEW system, the incidence of clinical and subclinical Pseudomonas mastitis cases decreased significantly (P < 0.0001) and disappeared. These findings suggest that SAEW effectively reduced the incidence of mastitis in a herd contaminated by Pseudomonas species. This is the first report to demonstrate the effectiveness of disinfection by SAEW against mastitis pathogens in the environment.
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Ito R, Katano I, Kawai K, Yagoto M, Takahashi T, Ka Y, Ogura T, Takahashi R, Ito M. A Novel Xenogeneic Graft-Versus-Host Disease Model for Investigating the Pathological Role of Human CD4 + or CD8 + T Cells Using Immunodeficient NOG Mice. Am J Transplant 2017; 17:1216-1228. [PMID: 27862942 DOI: 10.1111/ajt.14116] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Revised: 10/24/2016] [Accepted: 11/08/2016] [Indexed: 02/06/2023]
Abstract
Graft-versus-host disease (GVHD) is a major complication of allogenic bone marrow transplantation and involves the infiltration of donor CD4+ and/or CD8+ T cells into various organs of the recipient. The pathological role of human CD4+ and CD8+ T cells in GVHD remains controversial. In this study, we established two novel xenogeneic (xeno)-GVHD models. Human CD4+ or CD8+ T cells were purified from peripheral blood and were transplanted into immunodeficient NOD/Shi-scid IL2rgnull (NOG) mice. Human CD8+ T cells did not induce major GVHD symptoms in conventional NOG mice. However, CD8+ T cells immediately proliferated and induced severe GVHD when transferred into NOG mice together with at least 0.5 × 106 CD4+ T cells or into NOG human interleukin (IL)-2 transgenic mice. Human CD4+ T cell-transplanted NOG mice developed skin inflammations including alopecia, epidermal hyperplasia, and neutrophilia. Pathogenic T helper (Th)17 cells accumulated in the skin of CD4+ T cell-transplanted NOG mice. Further, an anti-human IL-17 antibody (secukinumab) significantly suppressed these skin pathologies. These results indicate that pathogenic human Th17 cells induce cutaneous GVHD via IL-17-dependent pathways. This study provides fundamental insights into the pathogenesis of xeno-GVHD, and these humanized mouse models may be useful as preclinical tools for the prevention of GVHD.
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Orime M, Tomiyama K, Hashidate H, Yoshida S, Hokari S, Tsuda A, Yokoyama H, Narita JI, Uchida Y, Kanekura T, Abe R, Ishii N, Hashimoto T, Kawai K. Non-paraneoplastic autoimmune subepidermal bullous disease associated with fatal bronchiolitis obliterans. J Dermatol 2017; 44:461-464. [PMID: 27914107 DOI: 10.1111/1346-8138.13706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 10/21/2016] [Indexed: 11/29/2022]
Abstract
Bronchiolitis obliterans is a small-airway obstructive lung disease for which immunologically mediated pathogenesis is supposed. Frequent association of bronchiolitis obliterans with paraneoplastic pemphigus is well known, but its association with other autoimmune bullous diseases has not been reported except for a case of anti-laminin-332-type mucous membrane pemphigoid in a patient with chronic graft-versus-host disease. We report a case of non-paraneoplastic autoimmune subepidermal bullous disease associated with fatal bronchiolitis obliterans in a patient without transplantation. Although the patient's serum contained immunoglobulin (Ig)A antibodies to the 180-kDa bullous pemphigoid antigen/type XVII collagen and IgG antibodies to laminin-332, diagnosis of either linear IgA bullous dermatosis or mucous membrane pemphigoid could not be made because of the failure to detect linear IgA deposition at the basement membrane zone by direct immunofluorescence and the lack of mucous membrane lesions. Physicians should be aware that autoimmune bullous diseases other than paraneoplastic pemphigus can also associate with this rare but potentially fatal lung disease.
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Ishiyama D, Mizomoto T, Ueda C, Takagi N, Shimizu N, Matsuura Y, Makuuchi Y, Watanabe A, Shinozuka Y, Kawai K. Factors affecting the incidence and outcome of Trueperella pyogenes mastitis in cows. J Vet Med Sci 2017; 79:626-631. [PMID: 28163273 PMCID: PMC5383188 DOI: 10.1292/jvms.16-0401] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The main factors affecting the outcome of Trueperella pyogenes (T. pyogenes) mastitis were examined through a survey of
diagnostic data and interviews relating to the occurrence of T. pyogenes mastitis in 83 quarters from 82 Holstein cows between August 2012 and
April 2014. Ultimately, one cow was sold during the examination, and 82 quarters from 81 cows were used for analysis on prognosis. T. pyogenes
mastitis occurred year round in both lactating and dry cows. The incidence of T. pyogenes mastitis did not significantly differ by month or
show seasonality in either lactating or dry cows. Therefore, the occurrence of T. pyogenes mastitis also differed from that of summer mastitis.
The 1-month survival rate of infected cows was 64.6% (53/82), and the recovery rate of quarters with T. pyogenes mastitis was 14.6% (12/82).
Bivariate logistic regression analysis was performed with survival and culling of infected cows as objective variables and with recovery and non-recovery of
quarters with T. pyogenes mastitis as objective variables. The severe cases were significantly culled (odds ratio, 16.30) compared to mild
cases, and the status of quarters didn’t recover (odds ratio, 6.50). The results suggest that mild to moderate symptom severity at the time of onset are the
main factors affecting outcomes in cows and recovery of quarters infected with T. pyogenes mastitis. Further, high level of NAGase activity
also suggested the potential use as an indicator of culling of cows with T. pyogenes mastitis.
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