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https://www.readbyqxmd.com/read/28936721/a-novel-resveratrol-derivative-selectively-inhibits-the-proliferation-of-colorectal-cancer-cells-with-kras-mutation
#1
Haruna Okamoto, Taiji Matsukawa, Satoshi Doi, Toshiyuki Tsunoda, Yuuga Sawata, Madoka Naemura, Koichiro Ohnuki, Senji Shirasawa, Yojiro Kotake
Resveratrol is a polyphenolic compound in many edible foods including grapes, peanuts, and berries. Several studies have revealed the beneficial effects of resveratrol against various diseases such as heart disease, diabetes, obesity, neurological disorders, and cancer. A recent study showed that resveratrol inhibits the proliferation of HCT116 human colorectal cancer cells in three-dimensional culture (3DC) via induction of luminal apoptosis in HCT116 cell spheroids. In this study, we showed that a novel compound, caffeic acid-adducted resveratrol, has a stronger inhibitory effect on the growth of HCT116 cell spheroids in 3DC than resveratrol...
September 21, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28936664/analysis-of-proteins-enriched-in-rice-gamete
#2
Takashi Okamoto
In angiosperms, female gamete differentiation, fertilization, and subsequent zygotic development occur in embryo sacs deeply embedded in the ovaries. Despite their importance in plant reproduction and development, how the egg cell is specialized, fuses with the sperm cell, and converts into an active zygote for early embryogenesis remains unclear. Proteins enriched in each cell type are thought to reflect the biological function of the cells, since the composition of cellular proteins generally differs depending on cell type...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28935510/intraoperative-computed-tomography-navigation-during-thoracoscopic-segmentectomy-for-small-sized-lung-tumors
#3
Sung Soo Chang, Taku Okamoto, Yoshimasa Tokunaga, Takayuki Nakano
Performance of thoracoscopic pulmonary segmentectomy for primary lung cancer or pulmonary metastases has recently increased. In patients with emphysema, identification of the intersegmental line is often difficult. For nonpalpable lesions, securing a sufficient surgical margin is more likely to be uncertain. The purpose of this study was to evaluate the efficacy of intraoperative computed tomography (CT) scan during video-assisted thoracoscopic surgery (VATS) pulmonary segmentectomy. This study included 12 patients who underwent intraoperative CT-assisted VATS segmentectomy between January 2015 and August 2016...
August 24, 2017: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28932120/natural-reduced-water-suppressed-anxiety-and-protected-the-heightened-oxidative-stress-in-rats
#4
Koji Masuda, Yoshihiro Tanaka, Masayuki Kanehisa, Taiga Ninomiya, Ayako Inoue, Haruka Higuma, Chiwa Kawashima, Mari Nakanishi, Kana Okamoto, Jotaro Akiyoshi
BACKGROUND: In Japan, the effects of reduced water, such as hydrogen-rich electrolyzed reduced water and natural reduced water, like Hita Tenryosui water(®), have been examined. The purpose of the present study was to identify the role of natural reduced water in anxiety and blood biochemical analysis. MATERIALS AND METHODS: Natural reduced water and distilled water were administered to rats for 180 consecutive days, and their effect on anxiety-like behavior and depression was examined by using elevated plus maze, light/dark, forced swimming, and conditioned fear tests...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28931890/pathogenesis-of-lethal-aspiration-pneumonia-in-mecp2-null-mouse-model-for-rett-syndrome
#5
Hiroshi Kida, Tomoyuki Takahashi, Yuki Nakamura, Takashi Kinoshita, Munetsugu Hara, Masaki Okamoto, Satoko Okayama, Keiichiro Nakamura, Ken-Ichiro Kosai, Takayuki Taniwaki, Yushiro Yamashita, Toyojiro Matsuishi
Rett syndrome (RTT) is a neurodevelopmental disorder mainly caused by mutations in the gene encoding the transcriptional regulator Methyl-CpG-binding protein 2 (MeCP2), located on the X chromosome. Many RTT patients have breathing abnormalities, such as apnea and breathing irregularity, and respiratory infection is the most common cause of death in these individuals. Previous studies showed that MeCP2 is highly expressed in the lung, but its role in pulmonary function remains unknown. In this study, we found that MeCP2 deficiency affects pulmonary gene expression and structures...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931045/effect-of-extracytoplasmic-function-sigma-factors-on-autoaggregation-hemagglutination-and-cell-surface-properties-of-porphyromonas-gingivalis
#6
Kazutaka Fujise, Yuichiro Kikuchi, Eitoyo Kokubu, Kazuko Okamoto-Shibayama, Kazuyuki Ishihara
Porphyromonas gingivalis is a bacterium frequently isolated from chronic periodontal lesions and is involved in the development of chronic periodontitis. To colonize the gingival crevice, P. gingivalis has to adapt to environmental stresses. Microbial gene expression is regulated by transcription factors such as those in two-component systems and extracytoplasmic function (ECF) sigma factors. ECF sigma factors are involved in the regulation of environmental stress response genes; however, the roles of individual ECF sigma factors are largely unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28930687/the-rab2b-garil5-complex-promotes-cytosolic-dna-induced-innate-immune-responses
#7
Michihiro Takahama, Mitsunori Fukuda, Norihiko Ohbayashi, Tatsuya Kozaki, Takuma Misawa, Toru Okamoto, Yoshiharu Matsuura, Shizuo Akira, Tatsuya Saitoh
Cyclic GMP-AMP synthase (cGAS) is a cytosolic DNA sensor that induces the IFN antiviral response. However, the regulatory mechanisms that mediate cGAS-triggered signaling have not been fully explored. Here, we show the involvement of a small GTPase, RAB2B, and its effector protein, Golgi-associated RAB2B interactor-like 5 (GARIL5), in the cGAS-mediated IFN response. RAB2B-deficiency affects the IFN response induced by cytosolic DNA. Consistent with this, RAB2B deficiency enhances replication of vaccinia virus, a DNA virus...
September 19, 2017: Cell Reports
https://www.readbyqxmd.com/read/28929314/radiation-therapy-versus-surgery-for-patients-with-cervical-squamous-cell-carcinoma-who-have-undergone-neoadjuvant-chemotherapy-revisited
#8
Yu Furuta, Yukiharu Todo, Hiroyuki Yamazaki, Chisa Shimada, Sho Takeshita, Kazuhira Okamoto, Hidenori Kato
BACKGROUND: The therapeutic significance of neoadjuvant chemotherapy (NAC) followed by radiation therapy (RT) was negated during the early 1990s. Here, we compared post-NAC RT to surgery for chemo-sensitive cervical squamous cell carcinoma (SCC). METHODS: This study included 79 consecutive patients with cervical SCC who were treated by NAC followed by surgery (n = 49) or by definitive RT (n = 30). We compared characteristics and survival outcomes between the surgery and RT groups by their responses to NAC...
September 19, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28928438/zyxin-stabilizes-rig-i-and-mavs-interactions-and-promotes-type-i-interferon-response
#9
Takahisa Kouwaki, Masaaki Okamoto, Hirotake Tsukamoto, Yoshimi Fukushima, Misako Matsumoto, Tsukasa Seya, Hiroyuki Oshiumi
RIG-I and MDA5 are cytoplasmic viral RNA sensors that belong to the RIG-I-like receptors (RLRs), which induce antiviral innate immune responses, including the production of type I interferon and other pro-inflammatory cytokines. After recognition of viral RNA, the N-terminal caspase activation and recruitment domains (CARDs) of RIG-I and MDA5 bind to a CARD in the MAVS adaptor molecule, resulting in MAVS oligomerization and downstream signaling. To reveal the molecular mechanism of MAVS-dependent signaling, we performed a yeast two-hybrid screening and identified zyxin as a protein that binds to MAVS...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28927855/diffuse-pulmonary-uptake-of-gallium-67-induced-by-pulmonary-mycobacterium-mucogenicum-and-mycobacterium-phocaicum-infection
#10
Satoshi Hamada, Natsumi Okamoto, Mitsuhiro Tsukino
No abstract text is available yet for this article.
September 15, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28926354/neointimal-coverage-of-jailed-side-branches-in-coronary-bifurcation-lesions-an-optical-coherence-tomography-analysis
#11
Teruyoshi Kume, Ryotaro Yamada, Koyama Terumasa, Tomoko Tamada, Koichiro Imai, Kenzo Fukuhara, Yutaka Goryo, Ai Kawamura, Okamoto Hiroshi, Yoji Neishi, Shiro Uemura
OBJECTIVES: The jailed strut at the side-branch (SB) orifice may be a cause of delayed neointimal coverage and SB flow disturbance after single stenting to bifurcation. The aim of this study was to characterize the exact relationship between the jailed strut pattern at the SB orifice immediately after stent implantation and neointimal coverage of the jailed SB orifice in the chronic phase. PATIENTS AND METHODS: A total of 29 bifurcation (left anterior descending coronary artery and diagonal branch) lesions treated by optical coherence tomography-guide single-stent implantation and followed at 18 months after a percutaneous coronary intervention were included in this study...
September 18, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28924075/edoxaban-enhances-thromboprophylaxis-by-physiotherapy-after-total-knee-arthroplasty%C3%A3-the-randomized-controlled-escort-tka-trial
#12
Daisuke Sueta, Koichi Kaikita, Nobukazu Okamoto, Soichiro Yamabe, Masanobu Ishii, Yuichiro Arima, Miwa Ito, Yu Oimatsu, Tatsuro Mitsuse, Satomi Iwashita, Eiichi Nakamura, Seiji Hokimoto, Hiroshi Mizuta, Hisao Ogawa, Kenichi Tsujita
BACKGROUND: The pharmacological advantage of combining physiotherapy with anticoagulants for the prevention of venous thromboembolism (VTE) after total knee arthroplasty (TKA) is not fully known. Herein we investigated the potential benefit of this combination therapy in patients undergoing TKA.Methods and Results:The 38 patients were randomly assigned to a physiotherapy group (n=19) or a physiotherapy plus 30 mg/day edoxaban group (n=19). The occurrence of VTE was evaluated, as were serial changes in parameters measured by the Total Thrombus-formation Analysis System, a novel system for quantitatively analyzing thrombus formation using microchips with thrombogenic surfaces (collagen plus tissue factor, atheroma [AR]-chip)...
September 16, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28921684/generation-of-stable-ruthenium-iv-ketimido-complexes-via-oxidative-addition-of-oxime-esters-to-ruthenium-ii-reactivity-studies-based-on-electronic-properties-of-the-ru-n-bond
#13
Takuya Shimbayashi, Kazuhiro Okamoto, Kouichi Ohe
The reaction of an oxime ester with RuX2(PPh3)3 proceeded smoothly at room temperature to afford a stable Ru(IV)-ketimido complex as an oxidative adduct. The structure of the complex was unambiguously determined by X-ray crystallographic analysis, which showed an almost linear Ru-N-C array. The electronic properties of the nitrogen atom were estimated by density functional theory (DFT) calculations, and results suggested the double-bond character of the Ru-N bond. Kinetic studies combined with consideration of the substituent effect on the oxime ester led to proposing the reaction mechanism involving oxidative addition, which could proceed via N,O-chelate coordination to the Ru center prior to N-O bond cleavage...
September 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28921377/basophils-activated-via-tlr-signaling-may-contribute-to-pathophysiology-of-type-1-autoimmune-pancreatitis
#14
Masato Yanagawa, Kazushige Uchida, Yugo Ando, Takashi Tomiyama, Takashi Yamaguchi, Tsukasa Ikeura, Toshiro Fukui, Akiyoshi Nishio, Yoshiko Uemura, Takayuki Miyara, Hiroyuki Okamoto, Souhei Satoi, Kazuichi Okazaki
BACKGROUND: Pathophysiology of type 1 autoimmune pancreatitis (AIP) is still unclear. We previously reported that M2 macrophages might play an important role in type 1 AIP. Recently, it has been reported that basophils regulate differentiation to M2 macrophages. In this study, we investigated basophils from the pancreatic tissue and peripheral blood of individuals with type 1 AIP. METHODS: By using immunohistochemistry, we investigated basophils in pancreatic tissue from 13 patients with type 1 AIP and examined expression of toll-like receptors (TLRs) by these cells...
September 18, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28916868/laparoscopic-liver-resection-using-a-monopolar-soft-coagulation-device-to-provide-maximum-intraoperative-bleeding-control-for-the-treatment-of-hepatocellular-carcinoma
#15
Mitsuo Miyazawa, Masayasu Aikawa, Katsuya Okada, Yukihiro Watanabe, Kojun Okamoto, Isamu Koyama
BACKGROUND: The popularity of laparoscopic liver resection (LLR) is spreading, worldwide, because the intraoperative blood loss is less than for open hepatectomy and it is associated with a shorter hospitalization period [1-6]. During LLR, intraoperative hemostasis is difficult to achieve, unlike during laparotomy where bleeding can be stopped instantly [7-10]. Our LLR method for the treatment of hepatocellular carcinoma (HCC) includes maximal control of intraoperative bleeding using a monopolar soft-coagulation device...
September 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28914664/three-dimensional-mri-analyses-of-prereduced-femoral-head-sphericity-in-patients-with-developmental-dysplasia-of-the-hip-after-pavlik-harness-failure
#16
Yuta Tsukagoshi, Hiroshi Kamada, Ryoko Takeuchi, Shogo Nakagawa, Yohei Tomaru, Makoto Kamegaya, Tomofumi Nishino, Yoshikazu Okamoto, Hajime Mishima, Masashi Yamazaki
We used three-dimensional (3D) MRI to assess the sphericity of the cartilaginous femoral head in developmental dysplasia of the hip. We assessed 21 children using 3D-MRI. The smallest sphere including the femoral head cartilage was drawn, the diameter was measured, and the center of the sphere was defined. We compared the diameters of the femoral heads between unaffected and diseased sides. The diameter of the affected side was smaller, with flattening at the posteromedial area and proximoposterior areas. 3D-MRI showed that the shape of the dislocated femoral head was aspherical with focal growth failure...
September 13, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28912595/analysis-of-vsv-pseudotype-virus-infection-mediated-by-rubella-virus-envelope-proteins
#17
Masafumi Sakata, Hideki Tani, Masaki Anraku, Michiyo Kataoka, Noriyo Nagata, Fumio Seki, Maino Tahara, Noriyuki Otsuki, Kiyoko Okamoto, Makoto Takeda, Yoshio Mori
Rubella virus (RV) generally causes a systemic infection in humans. Viral cell tropism is a key determinant of viral pathogenesis, but the tropism of RV is currently poorly understood. We analyzed various human cell lines and determined that RV only establishes an infection efficiently in particular non-immune cell lines. To establish an infection the host cells must be susceptible and permissible. To assess the susceptibility of individual cell lines, we generated a pseudotype vesicular stomatitis virus bearing RV envelope proteins (VSV-RV/CE2E1)...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28912456/physiological-activity-in-calm-thermal-indoor-environments
#18
Tsuyoshi Okamoto, Kaori Tamura, Naoyuki Miyamoto, Shogo Tanaka, Takaharu Futaeda
Indoor environmental comfort has previously been quantified based on the subjective assessment of thermal physical parameters, such as temperature, humidity, and airflow velocity. However, the relationship of these parameters to brain activity remains poorly understood. The objective of this study was to determine the effect of airflow on brain activity using electroencephalograms (EEG) of participants in a living environment under different airflow conditions. Before the recording, the room was set to a standardised air temperature and humidity...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911913/phosphatidic-acid-and-cardiolipin-coordinate-mitochondrial-dynamics
#19
REVIEW
Shoichiro Kameoka, Yoshihiro Adachi, Koji Okamoto, Miho Iijima, Hiromi Sesaki
Membrane organelles comprise both proteins and lipids. Remodeling of these membrane structures is controlled by interactions between specific proteins and lipids. Mitochondrial structure and function depend on regulated fusion and the division of both the outer and inner membranes. Here we discuss recent advances in the regulation of mitochondrial dynamics by two critical phospholipids, phosphatidic acid (PA) and cardiolipin (CL). These two lipids interact with the core components of mitochondrial fusion and division (Opa1, mitofusin, and Drp1) to activate and inhibit these dynamin-related GTPases...
September 11, 2017: Trends in Cell Biology
https://www.readbyqxmd.com/read/28906381/comparison-of-secondary-cytoreductive-surgery-plus-chemotherapy-with-chemotherapy-alone-for-recurrent-epithelial-ovarian-tubal-or-peritoneal-carcinoma-a-propensity-score-matched-analysis-of-112-consecutive-patients
#20
Akimasa Takahashi, Kazuyoshi Kato, Motoki Matsuura, Takahiro Katsuda, Maki Matoda, Hidetaka Nomura, Sanshiro Okamoto, Hiroyuki Kanao, Eiji Kondo, Kohei Omatsu, Kuniko Utsugi, Nobuhiro Takeshima
To compare secondary cytoreductive surgery (SCS) plus chemotherapy with chemotherapy alone in Japanese patients with recurrent epithelial ovarian, tubal, or peritoneal cancer (ROC).From our institutional database, we identified 112 patients who underwent therapy for ROC between 2005 and 2013. Of the 112 patients, 77 received salvage chemotherapy alone (CT group) and 35 received SCS plus chemotherapy (SCS group). To reduce the impact of treatment selection bias on treatment outcomes, propensity score-matching analysis was used...
September 2017: Medicine (Baltimore)
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