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https://www.readbyqxmd.com/read/29447852/loss-of-red-opsin-genes-relaxes-sexual-isolation-between-skin-colour-variants-of-medaka
#1
Makiko Kamijo, Mayuko Kawamura, Shoji Fukamachi
Colour vision is often essential for animals. Fine discrimination of colours enhances the ability of animals to find food, predators, or mating partners. Using two colour variants of medaka (Oryzias latipes), which mate assortatively depending on visual cues (pale grey versus dark orange), we recently established red colour-blind strains by knocking out the red opsin (long-wavelength-sensitive) genes and elucidated that the fish were indeed insensitive to red light. In the present study, we investigated the mate choice of these red-blind fish...
February 12, 2018: Behavioural Processes
https://www.readbyqxmd.com/read/29426602/airway-inflammation-after-epicutaneous-sensitization-of-mice-requires-protease-activity-of-low-dose-allergen-inhalation
#2
Izumi Nishioka, Toshiro Takai, Natsuko Maruyama, Seiji Kamijo, Punyada Suchiva, Mayu Suzuki, Shinya Kunimine, Hirono Ochi, Sakiko Shimura, Katsuko Sudo, Hideoki Ogawa, Ko Okumura, Shigaku Ikeda
No abstract text is available yet for this article.
January 31, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29422267/impact-of-a-negative-d-dimer-result-on-the-initial-assessment-of-acute-aortic-dissection
#3
Kenichi Nitta, Hiroshi Imamura, Yuichiro Kashima, Hiroshi Kamijo, Michitaro Ichikawa, Mayumi Okada, Katsunori Mochizuki, Hiroshi Takayama
BACKGROUND: D-dimer shows high sensitivity but low specificity for the diagnosis of acute aortic dissection (AAD). Previous reports indicated that negative D-dimer patients have shorter dissection length. However, whether patients with negative D-dimer results have a good prognosis is unknown. This study aimed to elucidate the clinical characteristics and implications of a negative D-dimer result on AAD diagnosis. METHODS: The study group comprised 126 patients (71 males, 55 females; mean age, 69 ± 11 years) with AAD admitted to our hospital between April 2009 and March 2015...
January 31, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29358034/the-effects-of-a-school-based-exercise-program-on-neurophysiological-indices-of-working-memory-operations-in-adolescents
#4
Sebastian Ludyga, Markus Gerber, Keita Kamijo, Serge Brand, Uwe Pühse
OBJECTIVES: To examine the effects of a structured exercise program implemented during school break-time on working memory maintenance and neurophysiological indices of task preparation processes in adolescents. DESIGN: Using class-wise random allocation, participants from four classes were divided into an exercise (n=20) and a wait-list control group (n=16). Over a period of eight weeks, the exercise group engaged in 20min of combined aerobic and coordinative exercise on each school day...
January 10, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29349637/association-between-keeping-home-records-of-catheter-exit-site-and-incidence-of-peritoneal-dialysis-related-infections
#5
Hidekazu Iida, Noriaki Kurita, Shino Fujimoto, Yuka Kamijo, Yoshitaka Ishibashi, Shingo Fukuma, Shunichi Fukuhara
PURPOSE: To prevent peritoneal dialysis (PD)-related infection, components of self-catheter care have been emphasized. However, studies on the effectiveness of home recording for the prevention of PD-related infections are limited. This study aimed to examine the association between keeping home records of catheter exit site and incidence of PD-related infections. METHODS: Home record books were submitted by patients undergoing PD. The proportion of days on which exit-site home recording was carried out for 120 days (0-100%) was obtained...
January 18, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29330514/a-comparison-of-static-and-dynamic-cerebral-autoregulation-during-mild-whole-body-cold-stress-in-individuals-with-and-without-cervical-spinal-cord-injury-a-pilot-study
#6
Jan W van der Scheer, Yoshi-Ichiro Kamijo, Christof A Leicht, Philip J Millar, Manabu Shibasaki, Victoria L Goosey-Tolfrey, Fumihiro Tajima
STUDY DESIGN: Experimental study. OBJECTIVES: To characterize static and dynamic cerebral autoregulation (CA) of individuals with cervical spinal cord injury (SCI) compared to able-bodied controls in response to moderate increases in mean arterial pressure (MAP) caused by mild whole-body cold stress. SETTING: Japan METHODS: Five men with complete autonomic cervical SCI (sustained > 5 y) and six age-matched able-bodied men participated in hemodynamic, temperature, catecholamine and respiratory measurements for 60 min during three consecutive stages: baseline (10 min; 33 °C water through a thin-tubed whole-body suit), mild cold stress (20 min; 25 °C water), and post-cold recovery (30 min; 33 °C water)...
January 12, 2018: Spinal Cord
https://www.readbyqxmd.com/read/29306105/distinct-gene-alterations-with-a-high-percentage-of-myeloperoxidase-positive-leukemic-blasts-in-de-novo-acute-myeloid-leukemia
#7
Rena Kamijo, Hidehiro Itonaga, Rika Kihara, Yasunobu Nagata, Tomoko Hata, Norio Asou, Shigeki Ohtake, Yuichi Shiraishi, Kenichi Chiba, Hiroko Tanaka, Satoru Miyano, Seishi Ogawa, Tomoki Naoe, Hitoshi Kiyoi, Yasushi Miyazaki
The myeloperoxidase (MPO)-positivity of blasts in bone marrow smears is an important marker for not only the diagnosis, but also the prognosis of acute myeloid leukemia (AML). To investigate the relationship between genetic alterations and MPO-positivity, we performed targeted sequencing for 51 genes and 10 chimeric gene transcripts in 164 newly diagnosed de novo AML patients; 107 and 57 patients were classified as AML with >50% MPO-positive blasts (MPO-high group) and ≤50% MPO-positive blasts, (MPO-low group), respectively...
February 2018: Leukemia Research
https://www.readbyqxmd.com/read/29300095/synthesis-of-2-iodoazulenes-by-the-iododeboronation-of-azulen-2-ylboronic-acid-pinacol-esters-with-copper-i-iodide
#8
Masahiro Narita, Toshihiro Murafuji, Saki Yamashita, Masayuki Fujinaga, Kumiko Hiyama, Yurie Oka, Fumito Tani, Shin Kamijo, Katsuya Ishiguro
Azulen-2-ylboronic acid pinacol ester, prepared by iridium-catalyzed C-H borylation of azulene, efficiently underwent iododeboronation with a stoichiometric amount of copper(I) iodide. This reaction allowed the synthesis of 2-iodoazulene in only two steps starting from azulene. This methodology was successfully applied to analogous azulenes.
January 4, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29296183/identification-of-the-genetic-and-clinical-characteristics-of-neuroblastomas-using-genome-wide-analysis
#9
Kumiko Uryu, Riki Nishimura, Keisuke Kataoka, Yusuke Sato, Atsuko Nakazawa, Hiromichi Suzuki, Kenichi Yoshida, Masafumi Seki, Mitsuteru Hiwatari, Tomoya Isobe, Yuichi Shiraishi, Kenichi Chiba, Hiroko Tanaka, Satoru Miyano, Katsuyoshi Koh, Ryoji Hanada, Akira Oka, Yasuhide Hayashi, Miki Ohira, Takehiko Kamijo, Hiroki Nagase, Tetsuya Takimoto, Tatsuro Tajiri, Akira Nakagawara, Seishi Ogawa, Junko Takita
To provide better insight into the genetic signatures of neuroblastomas, we analyzed 500 neuroblastomas (included specimens from JNBSG) using targeted-deep sequencing for 10 neuroblastoma-related genes and SNP arrays analysis. ALK expression was evaluated using immunohistochemical analysis in 259 samples. Based on genetic alterations, the following 6 subgroups were identified: groups A (ALK abnormalities), B (other gene mutations), C (MYCN amplification), D (11q loss of heterozygosity [LOH]), E (at least 1 copy number variants), and F (no genetic changes)...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290949/neurocan-an-extracellular-chondroitin-sulfate-proteoglycan-stimulates-neuroblastoma-cells-to-promote-malignant-phenotypes
#10
Zhendong Su, Satoshi Kishida, Shoma Tsubota, Kazuma Sakamoto, Dongliang Cao, Shinichi Kiyonari, Miki Ohira, Takehiko Kamijo, Atsushi Narita, Yinyan Xu, Yoshiyuki Takahashi, Kenji Kadomatsu
Neurocan (NCAN), a secreted chondroitin sulfate proteoglycan, is one of the major inhibitory molecules for axon regeneration in nervous injury. However, its role in cancer is not clear. Here we observed that high NCAN expression was closely associated with the unfavorable outcome of neuroblastoma (NB). NCAN was also highly and ubiquitously expressed in the early lesions and terminal tumor of TH-MYCN mice, a NB model. Interestingly, exogenous NCAN (i.e., overexpression, recombinant protein and conditioned medium) transformed adherent NB cells into spheres whose malignancies in vitro (anchorage-independent growth and chemoresistance) and in vivo (xenograft tumor growth) were potentiated...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29213329/oxygen-radical-pretreatment-promotes-cellulose-degradation-by-cellulolytic-enzymes
#11
Kiyota Sakai, Saki Kojiya, Junya Kamijo, Yuta Tanaka, Kenta Tanaka, Masahiro Maebayashi, Jun-Seok Oh, Masafumi Ito, Masaru Hori, Motoyuki Shimizu, Masashi Kato
Background: The efficiency of cellulolytic enzymes is important in industrial biorefinery processes, including biofuel production. Chemical methods, such as alkali pretreatment, have been extensively studied and demonstrated as effective for breaking recalcitrant lignocellulose structures. However, these methods have a detrimental effect on the environment. In addition, utilization of these chemicals requires alkali- or acid-resistant equipment and a neutralization step. Results: Here, a radical generator based on non-thermal atmospheric pressure plasma technology was developed and tested to determine whether oxygen-radical pretreatment enhances cellulolytic activity...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29186561/identification-of-5-fluoro-adb-in-human-whole-blood-in-four-death-cases
#12
Kiyotaka Usui, Yuji Fujita, Yoshito Kamijo, Tetsuo Kokaji, Masato Funayama
Four deaths that seemed to have been caused by a designer drug occurred within a 3-week period in Sendai, Japan. In each case, the decedent possessed the same sachet, labeled "Heart Shot BLACK", which contained a dried plant material with an aromatic scent. It was revealed in our analysis that the product contained a synthetic cannabinoid receptor agonist, 5-fluoro ADB (methyl 2-[1-(5-fluoropentyl)-1H-indazole-3-carboxamide]-3,3-dimethylbutanoate, also known as 5-fluoro MDMB-PINACA), which is now classified as a restricted designer drug in Japan after it caused several casualties...
November 24, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29183803/8-nitro-cgmp-is-a-promoter-of-osteoclast-differentiation-induced-by-rankl
#13
K Kaneko, Y Miyamoto, R Tsukuura, K Sasa, T Akaike, S Fujii, K Yoshimura, K Nagayama, M Hoshino, S Inoue, K Maki, K Baba, D Chikazu, R Kamijo
Osteoclasts are multinucleated giant cells differentiated from monocyte-macrophage-lineage cells under stimulation of receptor activator of nuclear factor κ-B (RANK) ligand (RANKL) produced by osteoblasts and osteocytes. Although it has been reported that nitric oxide (NO) and reactive oxygen species (ROS) are involved in this process, the mechanism by which these labile molecules promote osteoclast differentiation are not fully understood. In this study, we investigated the formation and function of 8-nitro-cGMP, a downstream molecule of NO and ROS, in the process of osteoclast differentiation in vitro...
November 25, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29159783/in-vitro-study-of-the-effects-of-denosumab-on-giant-cell-tumor-of-bone-comparison-with-zoledronic-acid
#14
Isao Shibuya, Masamichi Takami, Arei Miyamoto, Akiko Karakawa, Akira Dezawa, Shigeru Nakamura, Ryutaro Kamijo
Giant cell tumor of bone (GCTB) is a locally aggressive primary bone tumor that contains numerous osteoclasts formed from marrow-derived precursors through receptor activator of nuclear factor κ-B ligand (RANKL), an osteoclast differentiation factor expressed in neoplastic cells of GCTB. Denosumab, a fully human monoclonal antibody targeting RANKL, has recently been used for the treatment of GCTB, and superior treatment effects have been reported. The aim of this work was to elucidate the mechanism of action of denosumab, and the differences between denosumab and zoledronic acid at the level of GCTB cells...
November 20, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29129887/-analysis-of-backgrounds-and-level-of-understanding-of-treatment-of-poor-adherence-and-dropout-cases-on-sublingual-immunotherapy-for-japanese-cedar-pollinosis-in-the-first-follow-up-year
#15
Sayaka Kikkawa, Atsushi Kamijo, Kazuyuki Nakagome, Tomoyuki Soma, Takehito Kobayashi, Yoshitaka Uchida, Eiji Morita, Makoto Nagata, Tomoe Inoue, Yasuhiro Kase
BACKGROUND: We considered the factors of poor adherence to and dropout from sublingual immunotherapy (SLIT) by verifying patient backgrounds 1 year after start of treatment. METHODS: We recruited 38 patients who began SLIT between November 2014 and September 2015. We analyzed their attributes and level of understanding of the treatment, and conducted a self-reported survey on factors behind dropout cases and poor adherence cases. RESULTS: Four patients dropped out 1 year after start of treatment...
2017: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/29127555/continuous-monitoring-of-blood-pressure-by-analyzing-the-blood-flow-sound-of-arteriovenous-fistula-in-hemodialysis-patients
#16
Yuka Kamijo, Eiichiro Kanda, Hayato Horiuchi, Noriyuki Kounoue, Keisuke Ono, Keizo Maeda, Akane Yanai, Kazuya Honda, Ryuji Tsujimoto, Mai Yanagi, Yoshitaka Ishibashi, Masayuki Yoshida
BACKGROUND: Patients with end-stage renal disease undergoing hemodialysis (HD) have an elevated risk of cardiovascular disease-related morbidity and mortality. To prevent from such a life-threatening event, the continuous blood pressure (BP) monitoring system may contribute to detect BP decline in early stages and may help to do appropriate disposal. Our research team has introduced an electronic stethoscope (Asahi Kasei Co, Ltd., Tokyo, Japan), which translates sound intensity of Arteriovenous Fistula (AVF) to BP data using the technique of Fourier transformation that can predict continuous BP non-invasively...
November 10, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29081458/determination-of-formetanate-hydrochloride-in-agricultural-products-by-lc-ms-ms
#17
Maki Kobayashi, Naoko Sakai, Kyoko Kamijo, Hiroshi Koike, Satoru Nemoto, Tetsuya Shindo
An analytical method based on LC-MS/MS was developed for the determination of formetanate hydrochloride in agricultural products. Formetanate hydrochloride was confirmed to be stable in acetonitrile. It was therefore extracted from samples with acetonitrile, and the crude extracts were purified using a combination of ethylenediamine-N-propyl silylation silica gel and graphite carbon mini columns. Formetanate hydrochloride in the resulting sample solutions was quantified by LC-MS/MS utilizing an external solvent calibration curve...
2017: Shokuhin Eiseigaku Zasshi. Journal of the Food Hygienic Society of Japan
https://www.readbyqxmd.com/read/29073250/effects-of-physiatrist-and-registered-therapist-operating-acute-rehabilitation-pror-in-patients-with-stroke
#18
Tokio Kinoshita, Yukihide Nishimura, Takeshi Nakamura, Takamasa Hashizaki, Daisuke Kojima, Makoto Kawanishi, Hiroyasu Uenishi, Hideki Arakawa, Takahiro Ogawa, Yoshi-Ichiro Kamijo, Takashi Kawasaki, Fumihiro Tajima
OBJECTIVE: Clinical evidence suggests that early mobilization of patients with acute stroke improves activity of daily living (ADL). The purpose of this study was to compare the utility of the physiatrist and registered therapist operating acute rehabilitation (PROr) applied early or late after acute stroke. SUBJECTS AND METHODS: This study was prospective cohort study, assessment design. Patients with acute stroke (n = 227) admitted between June 2014 and April 2015 were divided into three groups based on the time of start of PROr: within 24 hours (VEM, n = 47), 24-48 hours (EM, n = 77), and more than 48 hours (OM, n = 103) from stroke onset...
2017: PloS One
https://www.readbyqxmd.com/read/29047213/baseline-and-time-averaged-values-predicting-residual-renal-function-decline-rate-in-japanese-peritoneal-dialysis-patients
#19
Kiyotaka Uchiyama, Akane Yanai, Keizo Maeda, Keisuke Ono, Kazuya Honda, Ryuji Tsujimoto, Yuka Kamijo, Mai Yanagi, Yoshitaka Ishibashi
Residual renal function (RRF) is a strong prognostic factor of morbidity and mortality in patients undergoing peritoneal dialysis (PD). We determined predictors of the RRF rate of decline using both baseline values and time-averaged ones. We retrospectively analyzed 94 patients being treated with PD at the Japanese Red Cross Medical Center. The decline rate of RRF was calculated by a diminution in the weekly renal Kt/V between the first and last follow up divided by follow-up years. The mean follow-up period was 2...
October 19, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/29036640/toxicokinetics-of-the-synthetic-cathinone-%C3%AE-pyrrolidinohexanophenone
#20
Yuji Fujita, Toshinori Mita, Kiyotaka Usui, Yoshito Kamijo, Satoshi Kikuchi, Makoto Onodera, Yasuhisa Fujino, Yoshihiro Inoue
Synthetic cathinones inhibit monoamine transporters, such as serotonin, norepinephrine, and dopamine transporters, and act on the central nervous system via increasing synaptic concentrations of monoamines. These compounds, which are highly addictive and potentially poisonous, are new psychoactive substances. In this study, we investigated the toxicokinetics of the synthetic cathinone, α-pyrrolidinohexanophenone (α-PHP), and assessed the relationship between the toxicokinetics and the long-term clinical symptoms induced by α-PHP in a male patient...
September 28, 2017: Journal of Analytical Toxicology
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