29 research outputs found

    The proposed structures of phenolic compounds isolated from <i>Piper betle</i> L. differ from those of the compounds obtained by total synthesis

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    We describe the syntheses of phenolic compounds, 4-[(1E, 3E, 5E)−6-(4-octyloxyphenyl)hexa-1,3,5-trien-1-yl]benzene-1,2-diol (1) and 3-(n-dodecyloxy) phenol (2), isolated from Piper betle. The triene moiety of 4-[(1E, 3E, 5E)−6-(4-octyloxyphenyl)hexa-1,3,5-trien-1-yl]benzene-1,2-diol was formed via two different methods, the Horner–Wadsworth–Emmons reaction and the McMurry coupling reaction. The spectral data of synthesized compounds show differences with those of reported as the naturally occurring compounds.</p

    Table1_Ultrastructural Assessment and Proteomic Analysis in Myofibrillogenesis in the Heart Primordium After Heartbeat Initiation in Rats.XLSX

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    Myofibrillogenesis is an essential process for cardiogenesis and is closely related to excitation-contraction coupling and the maintenance of heartbeat. It remains unclear whether the formation of myofibrils and sarcomeres is associated with heartbeat initiation in the early embryonic heart development. Here, we investigated the association between the ultrastructure of myofibrils assessed by transmission electron microscopy and their proteomic profiling assessed by data-independent acquisition mass spectrometry (DIA-MS) in the rat heart primordia before and after heartbeat initiation at embryonic day 10.0, when heartbeat begins in rats, and in the primitive heart tube at embryonic day 11.0. Bundles of myofilaments were scattered in a few cells of the heart primordium after heartbeat initiation, whereas there were no typical sarcomeres in the heart primordia both before and after heartbeat initiation. Sarcomeres with Z-lines were identified in cells of the primitive heart tube, though myofilaments were not aligned. DIA-MS proteome analysis revealed that only 43 proteins were significantly upregulated by more than 2.0 fold among a total of 7,762 detected proteins in the heart primordium after heartbeat initiation compared with that before heartbeat initiation. Indeed, of those upregulated proteins, 12 (27.9%) were constituent proteins of myofibrils and 10 (23.3%) were proteins that were accessories and regulators for myofibrillogenesis, suggesting that upregulated proteins that are associated with heartbeat initiation were enriched in myofibrillogenesis. Collectively, our results suggest that the establishment of heartbeat is induced by development of bundles of myofilaments with upregulated proteins associated with myofibrillogensis, whereas sarcomeres are not required for the initial heartbeat.</p

    Additional file 1 of Systemic sarcoidosis presenting as a rare combination of interstitial nephritis with necrotizing vasculitis and urinary retention due to prostate involvement: a case report

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    Additional file 1: Supplementary Figure S1. FDG-PET/CT findings in the patient’s kidneys. FDG-PET/CT showing mild uptake in the kidneys (red arrows). Supplementary Figure S2. FDG-PET/CT findings in the patient’s prostate. (A) FDG-PET/CT showing mild uptake in the prostate (red arrows). (B) Corresponding CT image at the same level as Figure S2A, with a red arrow showing the inserted urethral catheter

    Hierarchically Porous Monoliths Based on N‑Doped Reduced Titanium Oxides and Their Electric and Electrochemical Properties

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    In this report, we demonstrate a novel synthesis method to obtain reduced titanium oxides with monolithic shape and with a well-defined hierarchically porous structure from the titanium-based network bridged with ethylenediamine. The hierarchically porous monoliths are fabricated by the nonhydrolytic sol–gel reaction accompanied by phase separation. This method allows a low-temperature crystallization into Ti<sub>4</sub>O<sub>7</sub> and Ti<sub>3</sub>O<sub>5</sub> at 800 and 900 °C, respectively, with N-doped carbon. These reduced titanium oxides are well-doped with N atoms even under argon atmosphere without NH<sub>3</sub>, which accounts for the low-temperature reduction. The resultant monolithic materials possess controllable macropores and high specific surface area together with excellent electric conductivity up to 230 S cm<sup>–1</sup>, indicating promise as a conductive substrate that can substitute carbon electrodes

    Insulin Resistance is Associated with Longitudinal Changes of Cardiac Repolarization Heterogeneity in Apparently Healthy Subjects

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    Effect of Calcination Conditions on Porous Reduced Titanium Oxides and Oxynitrides via a Preceramic Polymer Route

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    A preceramic polymer route from Ti-based inorganic–organic hybrid networks provides electroconductive N-doped reduced titanium oxides (Ti<sub><i>n</i></sub>O<sub>2<i>n</i>–1</sub>) and titanium oxynitrides (TiO<sub><i>x</i></sub>N<sub><i>y</i></sub>) with a monolithic shape as well as well-defined porous structures. This methodology demonstrates an advantageously lower temperature of the crystal phase transition compared to the reduction of TiO<sub>2</sub> by carbon or hydrogen. In this study, the effect of calcination conditions on various features of the products has been explored by adopting three different atmospheric conditions and varying the calcination temperature. The detailed crystallographic and elemental analyses disclose the distinguished difference in the phase transition behavior with respect to the calcination atmosphere. The correlation between the crystallization and nitridation behaviors, porous properties, and electric conductivities in the final products is discussed

    Echocardiographic data at 1 hr after coronary ligation.

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    <p>Values are means±SEM. *P<0.05 vs. LETO. Abbreviations: See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0039893#pone-0039893-t002" target="_blank">Table 2</a>. Echocardiographic data was not acquired from 1 rat in LETO, 3 in OLETF and 1 in OLETF+cyclosporine A because of the poor quality of echocardiographic images.</p

    Table_1_A validation of the Japanese adaptation of the Big Five Inventory-2.docx

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    The purpose of this study was to adapt a Japanese version of the Big Five Inventory-2 (BFI-2-J) to examine its factor structure, reliability, validity, and measurement invariance. The BFI-2-J assesses five domains and 15 facets of the Big Five personality traits. We analyzed two datasets: 487 Japanese undergraduates and 500 Japanese adults. The results of the principal component analysis and confirmatory factor analysis revealed that the domain-facet structure of the BFI-2-J was similar to that of other language versions. The reliability of the BFI-2-J is sufficient. The correlation coefficients between the BFI-2-J and the other Big Five and self-esteem measures supported convergent and discriminant validity. Moreover, we confirmed measurement invariance across age and sex groups in domain-level and facet-level models. The results suggest that the BFI-2-J is a good instrument for measuring the Big Five personality traits and their facets in Japan. The BFI-2-J is expected to be useful in Japanese personality research and international comparative research.</p

    Responses of LV functions to β-adrenoceptor stimulation.

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    <p>Responses of heart rate (A), tau (B), LVESP (C), LVEDP (D), LVdP/dtmax (E), LVdP/dtmin (F), Ees (G) and Eed (H) to intravenous infusion of dobutamine are shown. *p<0.05 vs. Baseline (Base), †p<0.05 vs. LETO. n = 5∼6. tau =  time constant of left ventricular pressure decay; LVESP =  left ventricular end-systolic pressure; LVEDP =  left ventricular end-diastolic pressure; LVdP/dtmax =  left ventricular maximal slope of the systolic pressure increment; LVdP/dtmin =  left ventricular maximal slope of the diastolic pressure decrement; Ees =  end-systolic elastance; Eed =  end-diastolic elastance; 4-PBA = 4-phenylbutyric acid.</p

    Echocardiographic data at baseline.

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    <p>Values are means±SEM. *P<0.05 vs. LETO. 4-PBA = 4-phenylbutyric acid; LVEF =  left ventricular ejection fraction; %FS =  fractional shortening; IVST =  interventricular septal thickness; PWT =  posterior wall thickness; LVEDD =  left ventricular end-diastolic dimension; LVESD =  left ventricular end-systolic dimension; LVEDV =  left ventricular end-diastolic volume; LVESV =  left ventricular end-systolic volume.</p
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