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https://www.readbyqxmd.com/read/28506276/redo-coronary-bypass-grafting-for-congenital-left-main-coronary-atresia-a-case-report
#1
Shin Yajima, Koichi Toda, Hiroyuki Nishi, Daisuke Yoshioka, Teruya Nakamura, Shigeru Miyagawa, Yasushi Yoshikawa, Satsuki Fukushima, Yoshiki Sawa
BACKGROUND: Congenital left main coronary atresia is an extremely rare coronary anomaly. Long-term surgical outcomes and the optimal management strategies for recurrence of ischemia remain uncertain. Herein, we present a case involving successful redo coronary artery bypass grafting for unstable angina 27 years after the initial coronary artery bypass grafting for congenital left main coronary atresia. CASE PRESENTATION: A 33-year-old woman was referred to our department with unstable angina...
May 15, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28505626/discrimination-between-patients-with-alzheimer-disease-and-healthy-subjects-using-layer-analysis-of-cerebral-blood-flow-and-xenon-solubility-coefficient-in-xenon-enhanced-computed-tomography
#2
Shigeru Sase, Homaro Yamamoto, Ena Kawashima, Xin Tan, Yutaka Sawa
OBJECTIVE: The aim of this study was to develop a method for discriminating between patients with Alzheimer disease (AD) and healthy subjects using layer analysis of cerebral blood flow (CBF) and xenon solubility coefficient (λ) in xenon-enhanced computed tomography (CT). METHODS: Xenon-enhanced CT was performed on 27 patients with AD (81.7 [3.3] years old) and 15 healthy volunteers (78.6 [4.0] years old) using a wide volume CT. For each subject, we created the first- (surface) to sixth-layer images of CBF and λ for the 6 viewing directions (layer thickness, 5 mm)...
May 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28498040/pivotal-role-of-non-cardiomyocytes-in-electromechanical-and-therapeutic-potential-of-induced-pluripotent-stem-cell-derived-engineered-cardiac-tissue
#3
Hiroko Iseoka, Shigeru Miyagawa, Satsuki Fukushima, Atsuhiro Saito, Shigeo Masuda, Shin Yajima, Emiko Ito, Nagako Sougawa, Maki Takeda, Akima Harada, Jong-Kook Lee, Yoshiki Sawa
Although engineered cardiac tissues (ECTs) derived from induced pluripotent stem cells (iPSCs) are promising for myocardial regenerative therapy, the appropriate ratio of cardiomyocytes to non-cardiomyocytes is not fully understood. Here, we determined whether ECT-cell content is a key determinant of its structure/function, thereby affecting ECT therapeutic potential for advanced heart failure. Scaffold-free ECTs containing different ratios (25%, 50%, 70%, or 90%) of iPSC-derived cardiomyocytes were generated by magnetic-activated cell sorting using cardiac-specific markers...
May 12, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28472294/disrupted-in-schizophrenia-1-disc1-protein-disturbs-neural-function-in-multiple-disease-risk-pathways
#4
Lisha Shao, Binyan Lu, Zhexing Wen, Shaolei Teng, Lingling Wang, Yi Zhao, Liyuan Wang, Koko Ishizuka, Xiufeng Xu, Akira Sawa, Hongjun Song, Guoli Ming, Yi Zhong
Although the genetic contribution is under debate, biological studies in multiple mouse models have suggested that the Disrupted-in-Schizophrenia-1 (DISC1) protein may contribute to susceptibility to psychiatric disorders. In the present study, we took the advantages of Drosophila model to dissect molecular pathways that can be affected by DISC1 in the context of pathology-related phenotypes. We found that three pathways that include the homologs of Drosophila Dys, Trio, and Shot were downregulated by introducing a C-terminal truncated mutant DISC1...
May 3, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28471634/a-highly-durable-rnai-therapeutic-inhibitor-of-pcsk9
#5
COMMENT
Shigeo Masuda, Shigeru Miyagawa, Yoshiki Sawa
New England Journal of Medicine, Volume 376, Issue 18, May 2017.
May 4, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28463085/low-intensity-pulsed-ultrasound-reduces-periodontal-atrophy-in-occlusal-hypofunctional-teeth
#6
Yuki Kasahara, Risa Usumi-Fujita, Jun Hosomichi, Sawa Kaneko, Yuji Ishida, Naoki Shibutani, Yasuhiro Shimizu, Asuka Okito, Shuji Oishi, Yoichiro Kuma, Hiroyuki Yamaguchi, Takashi Ono
OBJECTIVE: To clarify whether low-intensity pulsed ultrasound (LIPUS) exposure has recovery effects on the hypofunctional periodontal ligament (PDL) and interradicular alveolar bone (IRAB). MATERIALS AND METHODS: Twelve-week-old male Sprague-Dawley rats were divided into three groups (n = 5 each): a normal occlusion (C) group, an occlusal hypofunction (H) group, and an occlusal hypofunction group subjected to LIPUS (HL) treatment. Hypofunctional occlusion of the maxillary first molar (M1) of the H and HL groups was induced by the bite-raising technique...
May 2, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28462085/cellular-immune-profiling-after-sequential-clofarabine-and-lenalidomide-for-high-risk-myelodysplastic-syndromes-and-acute-myeloid-leukemia
#7
Prachi Jain, Jeffrey Klotz, Neil Dunavin, Kit Lu, Eleftheria Koklanaris, Debbie Draper, Jeanine Superata, Fariba Chinian, Quan Yu, Keyvan Keyvanfar, Susan Wong, Pawel Muranski, A John Barrett, Sawa Ito, Minoo Battiwalla
Patients with high risk myelodysplastic syndromes (MDS) and acute myelogenous leukemia (AML) are commonly older with multiple co-morbidities, rendering them unsuitable for intensive induction chemotherapy or transplantation. We report preliminary cellular immune profiling of four cases receiving sequential clofarabine and lenalidomide for high risk MDS and AML in a phase I study. Our results highlight the potential of immune profiling for monitoring immune-modifying agents in high risk MDS and AML.
2017: Leukemia Research Reports
https://www.readbyqxmd.com/read/28461890/importance-of-diffuse-scattering-for-materials-science
#8
Hiroshi Sawa
Recent studies highlighting the importance of diffuse scattering for materials science are presented.
September 1, 2016: IUCrJ
https://www.readbyqxmd.com/read/28461884/risk-of-unsuccessful-noninvasive-ventilation-for-acute-respiratory-failure-in-heterogeneous-neuromuscular-diseases-a-retrospective-study
#9
Hiroshi Kataoka, Hitoki Nanaura, Kaoru Kinugawa, Yuto Uchihara, Hiroya Ohara, Nobuyuki Eura, Ryogo Syobatake, Nobuhiro Sawa, Kiriyama Takao, Kazuma Sugie, Satoshi Ueno
If invasive ventilation can be avoided by performing noninvasive mechanical ventilation (NIV) in patients with acute respiratory failure (ARF), the disease can be effectively managed. It is important to clarify the characteristics of patients with neuromuscular diseases in whom initial NIV is likely to be unsuccessful. We studied 27 patients in stable neuromuscular condition who initially received NIV to manage fatal ARF to identify differences in factors immediately before the onset of ARF among patients who receive continuous NIV support, patients who are switched from NIV to invasive ventilation, and patients in whom NIV is discontinued...
February 20, 2017: Neurology International
https://www.readbyqxmd.com/read/28460874/risk-index-for-postoperative-acute-kidney-injury-after-valvular-surgery-using-cardiopulmonary-bypass
#10
Takashi Yamauchi, Shigeru Miyagawa, Yasushi Yoshikawa, Koichi Toda, Yoshiki Sawa
BACKGROUND: Acute kidney injury (AKI) after valvular surgical procedures with cardiopulmonary bypass carries potentially high mortality and morbidity rates. This study investigated the risk factors for AKI, and the study investigators developed a risk index to predict postoperative AKI. METHODS: A total of 1,484 consecutive non-dialysis-dependent patients who underwent valvular operations using cardiopulmonary bypass between 2008 and 2011 were retrospectively investigated...
April 28, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28452376/a-new-approach-to-transfect-nf-%C3%AE%C2%BAb-decoy-oligodeoxynucleotides-into-the-periodontal-tissue-using-the-ultrasound-microbubble-method
#11
Hiroyuki Yamaguchi, Yuji Ishida, Jun Hosomichi, Jun-Ichi Suzuki, Risa Usumi-Fujita, Yasuhiro Shimizu, Sawa Kaneko, Takashi Ono
The objective of this study is to investigate the effect of the ultrasound-microbubble technique in nuclear factor kappa B (NF-κB) decoy oligodeoxynucleotide (ODN) transfection in the gingival tissue in mice. The 6-FAM-labeled scrambled decoy ODN with microbubbles was applied to the periodontal tissue in 8-week-old male C57BL/6J mice by ultrasound radiation at low (LUM-Sc) and high (HUM-Sc) intensities to optimize the transfection condition of the ultrasound-microbubble method. Histological inspections were performed two hours after transfection to compare the expression with that in the sham-operated group without ultrasound radiation (A-Sc)...
April 28, 2017: International Journal of Oral Science
https://www.readbyqxmd.com/read/28445312/early-progression-of-brain-atrophy-in-patients-with-anti-n-methyl-d-aspartate-receptor-encephalitis-case-reports
#12
Hiroshi Kataoka, Nobuhiro Sawa, Yasuyo Tonomura, Satoshi Ueno
BACKGROUND: Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis responds to immunnotherapy, and approximately 80% of patients with this disorder fully recover or have only minor sequelae. Brain magnetic resonance imaging (MRI) does not show a specific abnormality, but some patients have progressive cerebral atrophy. The cerebral atrophy can become reversible after clinical improvement. METHODS: We describe 3 patients with diffuse cerebral atrophy (DCA) on serial brain MRI...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28442645/iatrogenic-injury-of-right-coronary-artery-during-tricuspid-annuloplasty
#13
Satoshi Kainuma, Hiroya Yamamoto, Shohei Yamada, Yu Yamada, Akinori Sumiyoshi, Atsunori Okamura, Katsuomi Iwakura, Yuka Miyata, Yukio Hayashi, Masakazu Ueda, Yoshiki Sawa, Takafumi Masai
No abstract text is available yet for this article.
April 22, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28439697/heart-transplantation-for-adults-with-congenital-heart-disease-current-status-and-future-prospects
#14
REVIEW
Hikaru Matsuda, Hajime Ichikawa, Takayoshi Ueno, Yoshiki Sawa
Increased survival rates after corrective or palliative surgery for complex congenital heart disease (CHD) in infancy and childhood are now being coupled with increased numbers of patients who survive to adulthood with various residual lesions or sequelae. These patients are likely to deteriorate in cardiac function or end-organ function, eventually requiring lifesaving treatment including heart transplantation. Although early and late outcomes of heart transplantation have been improving for adult survivors of CHD, outcomes and pretransplant management could still be improved...
April 24, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28436956/identification-of-subepithelial-mesenchymal-cells-that-induce-iga-and-diversify-gut-microbiota
#15
Kazuki Nagashima, Shinichiro Sawa, Takeshi Nitta, Masanori Tsutsumi, Tadashi Okamura, Josef M Penninger, Tomoki Nakashima, Hiroshi Takayanagi
Immunoglobulin A (IgA) maintains a symbiotic equilibrium with intestinal microbes. IgA induction in the gut-associated lymphoid tissues (GALTs) is dependent on microbial sampling and cellular interaction in the subepithelial dome (SED). However it is unclear how IgA induction is predominantly initiated in the SED. Here we show that previously unrecognized mesenchymal cells in the SED of GALTs regulate bacteria-specific IgA production and diversify the gut microbiota. Mesenchymal cells expressing the cytokine RANKL directly interact with the gut epithelium to control CCL20 expression and microfold (M) cell differentiation...
April 24, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28435239/pulmonary-rehabilitation-for-copd-improves-exercise-time-rather-than-exercise-tolerance-effects-and-mechanisms
#16
Keisuke Miki, Ryoji Maekura, Seigo Kitada, Mari Miki, Kenji Yoshimura, Hiroshi Yamamoto, Toshiko Kawabe, Hiroyuki Kagawa, Yohei Oshitani, Akitoshi Satomi, Kohei Nishida, Nobuhiko Sawa, Kimiko Inoue
BACKGROUND: COPD patients undergoing pulmonary rehabilitation (PR) show various responses. The purpose of this study was to investigate the possible mechanisms and predictors of the response to PR in COPD patients. METHODS: Thirty-six stable COPD patients underwent PR including a 4-week high-intensity exercise training program, and they were evaluated by cardiopulmonary exercise testing. All patients (mean age 69 years, severe and very severe COPD 94%) were classified into four groups by whether the exercise time (Tex) or the peak oxygen uptake [Formula: see text] increased after PR: two factors increased (both the Tex and the peak [Formula: see text] increased); two factors decreased; time only increased (the Tex increased, but the peak [Formula: see text] economized); and [Formula: see text] only increased (the Tex decreased, but the peak [Formula: see text] increased)...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28430100/discovery-of-african-bat-polyomaviruses-and-infrequent-recombination-in-the-large-t-antigen-in-the-polyomaviridae
#17
Michael Carr, Gabriel Gonzalez, Michihito Sasaki, Kimihito Ito, Akihiro Ishii, Bernard M Hang'ombe, Aaron S Mweene, Yasuko Orba, Hirofumi Sawa
Bat species represent natural reservoirs for a number of high-consequence human pathogens. The present study investigated the diversity of polyomaviruses (PyVs) in Zambian insectivorous and fruit bat species. We describe the complete genomes from four newly proposed African bat PyV species employing the recently recommended criteria provided by the Polyomaviridae Study Group of the International Committee on Taxonomy of Viruses. A comprehensive phylogenetic and recombination analysis was performed to determine genetic relationships and the distribution of recombination events in PyV from mammalian and avian species...
April 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28420823/listeria-monocytogenes-serotype-4b-strains-replicate-in-monocytes-macrophages-more-than-the-other-serotypes
#18
Rie Hasebe, Ryo Nakao, Aiko Ohnuma, Takeshi Yamasaki, Hirofumi Sawa, Shinji Takai, Motohiro Horiuchi
We analyzed the pathogenicity of various serotypes of Listeria monocytogenes using a Balb/c mouse intravenous injection model. The survival rates of mice inoculated with strains NS1/2b (serotype 1/2b), NS3b (serotype 3b) and NS 4b (serotype 4b) were 60%, 63.6% and 63.6%, respectively. Although the survival rates were similar, the bacterial growth in the liver of NS3b-infected mice was 144.5-fold higher than that in the liver of NS4b-infected mice. Histopathological analyses suggest that the NS4b strain replicated more in monocytes/macrophages, whereas the NS3b strain replicated more in hepatocytes...
April 17, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28418034/light-and-circadian-controlled-genes-respond-to-a-broad-light-spectrum-in-puffer-fish-derived-fugu-eye-cells
#19
Keiko Okano, Shoichi Ozawa, Hayao Sato, Sawa Kodachi, Masaharu Ito, Toshiaki Miyadai, Akihiro Takemura, Toshiyuki Okano
Some cell lines retain intrinsic phototransduction pathways to control the expression of light-regulated genes such as the circadian clock gene. Here we investigated the photosensitivity of a Fugu eye, a cell line established from the eye of Takifugu rubripes, to examine whether such a photosensitive nature is present. Microarray analysis identified 15 genes that showed blue light-dependent change at the transcript level. We investigated temporal profiles of the light-induced genes, as well as Cry and Per, under light-dark, constant light (LL), and constant dark (DD) conditions by quantitative RT-PCR...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28411626/quantitative-determination-of-polysulfide-in-albumins-plasma-proteins-and-biological-fluid-samples-using-a-novel-combined-assays-approach
#20
Mayumi Ikeda, Yu Ishima, Akitomo Shibata, Victor T G Chuang, Tomohiro Sawa, Hideshi Ihara, Hiroshi Watanabe, Ming Xian, Yuya Ouchi, Taro Shimizu, Hidenori Ando, Masami Ukawa, Tatsuhiro Ishida, Takaaki Akaike, Masaki Otagiri, Toru Maruyama
Hydrogen sulfide (H2S) signaling involves polysulfide (RSSnSR') formation on various proteins. However, the current lack of sensitive polysulfide detection assays poses methodological challenges for understanding sulfane sulfur homeostasis and signaling. We developed a novel combined assay by modifying Sulfide Antioxidant Buffer (SAOB) to produce an "Elimination Method of Sulfide from Polysulfide" (EMSP) treatment solution that liberates sulfide, followed with methylene blue (MB) sulfide detection assay. The combined EMSP-MB sulfide detection assay performed on low molecular weight sulfur species showed that sulfide was produced from trisulfide compounds such as glutathione trisulfide and diallyl trisulfide, but not from the thiol compounds such as cysteine, cystine and glutathione...
May 29, 2017: Analytica Chimica Acta
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