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https://www.readbyqxmd.com/read/28523374/capturing-microscopic-features-of-bone-remodeling-into-a-macroscopic-model-based-on-biological-rationales-of-bone-adaptation
#1
Young Kwan Kim, Yoshitaka Kameo, Sakae Tanaka, Taiji Adachi
To understand Wolff's law, bone adaptation by remodeling at the cellular and tissue levels has been discussed extensively through experimental and simulation studies. For the clinical application of a bone remodeling simulation, it is significant to establish a macroscopic model that incorporates clarified microscopic mechanisms. In this study, we proposed novel macroscopic models based on the microscopic mechanism of osteocytic mechanosensing, in which the flow of fluid in the lacuno-canalicular porosity generated by fluid pressure gradients plays an important role, and theoretically evaluated the proposed models, taking biological rationales of bone adaptation into account...
May 18, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28521331/retinal-deep-capillary-ischemia-associated-with-an-occluded-congenital-retinal-macrovessel
#2
Taiji Hasegawa, Nahoko Ogata
PURPOSE: To report the case of a patient with an occluded congenital retinal macrovessel accompanied by retinal deep capillary ischemia. METHODS: A 38-year-old woman presented with a 2-day history of a paracentral scotoma of her right eye. RESULTS: Fundus photograph showed a dilated congenital retinal macrovessel with arteriovenous anastomosis, an intravascular white region indicating the thrombus at arteriovenous anastomotic region, and an area of retinal whitening temporal to the fovea...
July 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28521269/a-new-technique-for-dorsal-sural-nerve-conduction-study-with-surface-strip-electrodes
#3
Shoji Hemmi, Katsumi Kurokawa, Taiji Nagai, Ryutaro Kushida, Toshio Okamoto, Tatsufumi Murakami, Yoshihide Sunada
OBJECTIVE: To obtain higher amplitude of dorsal sural sensory nerve action potentials (SNAPs), we used a new method for dorsal sural nerve conduction study with surface strip electrodes (SSEs). METHODS: Dorsal sural SNAPs were recorded orthodromically. The recording electrodes were placed behind the lateral malleolus. SSEs were attached to the laterodorsal aspect of the foot for stimulation of the dorsal sural nerve (DSN). We also used a conventional method with a standard bipolar stimulator and compared the findings...
April 19, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28497709/use-of-proximal-side-hole-micro-balloon-catheter-in-transcatheter-hepatic-arterial-chemoembolization
#4
Takuji Yamagami, Rika Yoshimatsu, Miki Nishimori, Kenta Ogi, Taiji Tamura, Shinji Iwasaki, Tomoaki Yamanishi
We report on a 70-year-old man with unresectable multiple hepatocellular carcinomas who underwent treatment with transcatheter hepatic arterial chemoembolization. In treating a tumor in segment 1 of the liver, the proximal side-hole micro-balloon catheter, which has been newly developed, was useful.
May 12, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28496045/cholic-acid-enhances-visceral-adiposity-atherosclerosis-and-nonalcoholic-fatty-liver-disease-in-microminipigs
#5
Sohsuke Yamada, Hiroaki Kawaguchi, Tomonobu Yamada, Xin Guo, Kei Matsuo, Taiji Hamada, Naoki Miura, Takashi Tasaki, Akihide Tanimoto
AIM: We have recently established a novel swine model for studies of atherosclerosis using Microminipigs(TM) (µMPs) fed a high-fat/high-cholesterol diet (HcD). Using this swine model, we re-evaluated the effects of dietary cholic acid (CA) on serum lipid profile, atherosclerosis and hepatic injuries. METHODS: The µMPs were fed HcD supplemented with 0.7% CA (HcD+CA) for eight weeks, and the effect of CA on serum lipoprotein levels, expression of oxidative stress markers, adiposity and lesion formation in the aorta, liver, and other organs was investigated...
May 11, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28492435/clinical-findings-of-eyes-with-macular-edema-associated-with-branch-retinal-vein-occlusion-refractory-to-ranibizumab
#6
Taiji Hasegawa, Taizo Kawano, Ichiro Maruko, Hideki Koizumi, Tomohiro Iida
PURPOSE: To determine the relationship between the clinical findings and the response to ranibizumab therapy in eyes with macular edema associated with branch retinal vein occlusion. METHODS: We reviewed the medical records of 68 patients with macular edema associated with a branch retinal vein occlusion. The patients were placed in the refractory group if the central foveal thickness remained more than 250 μm throughout the 6-month study period despite the ranibizumab therapy; otherwise, they were placed in the responsive group...
May 10, 2017: Retina
https://www.readbyqxmd.com/read/28485211/molecular-diversity-of-tuliposide-b-converting-enzyme-in-tulip-tulipa-gesneriana-identification-of-the-root-specific-isozyme
#7
Taiji Nomura, Ayaka Ueno, Shinjiro Ogita, Yasuo Kato
6-Tuliposide B (PosB) is a glucose ester accumulated in tulip (Tulipa gesneriana) as a major secondary metabolite. PosB serves as the precursor of the antimicrobial lactone tulipalin B (PaB), which is formed by PosB-converting enzyme (TCEB). The gene TgTCEB1, encoding a TCEB, is transcribed in tulip pollen but scarcely transcribed in other tissues (e.g. roots) even though those tissues show high TCEB activity. This led to the prediction of the presence of a TCEB isozyme with distinct tissue specificity. Herein, we describe the identification of the TgTCEB-R gene from roots via native enzyme purification; this gene is a paralog of TgTCEB1...
June 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28479934/ultrastructural-and-biochemical-aspects-of-matrix-vesicle-mediated-mineralization
#8
REVIEW
Tomoka Hasegawa, Tomomaya Yamamoto, Erika Tsuchiya, Hiromi Hongo, Kanako Tsuboi, Ai Kudo, Miki Abe, Taiji Yoshida, Tomoya Nagai, Naznin Khadiza, Ayako Yokoyama, Kimimitsu Oda, Hidehiro Ozawa, Paulo Henrique Luiz de Freitas, Minqi Li, Norio Amizuka
Matrix vesicle-mediated mineralization is an orchestrated sequence of ultrastructural and biochemical events that lead to crystal nucleation and growth. The influx of phosphate ions into the matrix vesicle is mediated by several proteins such as TNAP, ENPP1, Pit1, annexin and so forth. The catalytic activity of ENPP1 generates pyrophosphate (PPi) using extracellular ATPs as a substrate, and the resultant PPi prevents crystal overgrowth. However, TNAP hydrolyzes PPi into phosphate ion monomers, which are then transported into the matrix vesicle through Pit1...
May 2017: Japanese Dental Science Review
https://www.readbyqxmd.com/read/28458762/bacteremia-or-pseudobacteremia-review-of-pseudomonas-fluorescens-infections
#9
Takeshi Nishimura, Kenji Hattori, Akihiko Inoue, Taiji Ishii, Tetsuya Yumoto, Kohei Tsukahara, Astunori Nakao, Satoshi Ishihara, Shinichi Nakayama
No abstract text is available yet for this article.
2017: World Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28457754/investigation-of-the-structural-requirements-of-k-ras-g12d-selective-inhibitory-peptide-krpep-2d-using-alanine-scans-and-cysteine-bridging
#10
Ayumu Niida, Shigekazu Sasaki, Kazuko Yonemori, Tomoya Sameshima, Masahiro Yaguchi, Taiji Asami, Kotaro Sakamoto, Masahiro Kamaura
A structure-activity relationship study of a K-Ras(G12D) selective inhibitory cyclic peptide, KRpep-2d was performed. Alanine scanning of KRpep-2d focusing on the cyclic moiety showed that Leu(7), Ile(9), and Asp(12) are the key elements for K-Ras(G12D) selective inhibition of KRpep-2d. The cysteine bridging was also examined to identify the stable analog of KRpep-2d under reductive conditions. As a result, the KRpep-2d analog (12) including mono-methylene bridging showed potent K-Ras(G12D) selective inhibition in both the presence and the absence of dithiothreitol...
April 21, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28444454/influence-of-the-contralateral-hip-state-after-total-hip-arthroplasty-on-patient-reported-outcomes-measured-with-the-forgotten-joint-score-12
#11
Mikio Matsumoto, Tomonori Baba, Hironori Ochi, Yu Ozaki, Taiji Watari, Yasuhiro Homma, Kazuo Kaneko
PURPOSE: The purpose of this study was to examine the influence of the contralateral hip state on postoperative assessment using the Forgotten Joint Score-12 (FJS-12) in comparison with the McMaster Universities Osteoarthritis Index (WOMAC) and the Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ). METHODS: One hundred and thirty-four hips underwent total hip arthroplasty (THA) between 2014 and 2015. Of these, the subjects were 106 hips with degenerative hip arthrosis as a primary disease for whom initial THA was performed on the affected side...
April 25, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28442663/histochemical-assessment-for-osteoblastic-activity-coupled-with-dysfunctional-osteoclasts-in-c-src-deficient-mice
#12
Hisashi Toray, Tomoka Hasegawa, Naoko Sakagami, Erika Tsuchiya, Ai Kudo, Shen Zhao, Yasuhito Moritani, Miki Abe, Taiji Yoshida, Tomomaya Yamamoto, Tsuneyuki Yamamoto, Kimimitsu Oda, Nobuyuki Udagawa, Paulo Henrique Luiz de Freitas, Minqi Li
Since osteoblastic activities are believed to be coupled with osteoclasts, we have attempted to histologically verify which of the distinct cellular circumstances, the presence of osteoclasts themselves or bone resorption by osteoclasts, is essential for coupled osteoblastic activity, by examining c-fos(-/-) or c-src(-/-) mice. Osteopetrotic c-fos deficient (c-fos(-/-)) mice have no osteoclasts, while c-src deficient (c-src(-/-)) mice, another osteopetrotic model, develop dysfunctional osteoclasts due to a lack of ruffled borders...
2017: Biomedical Research
https://www.readbyqxmd.com/read/28438540/potent-and-selective-oxytocin-receptor-agonists-without-disulfide-bridges
#13
Yusuke Adachi, Katsuya Sakimura, Yuji Shimizu, Masaharu Nakayama, Yasuko Terao, Takahiko Yano, Taiji Asami
Oxytocin (OT) is a neuropeptide involved in a wide variety of physiological actions, both peripherally and centrally. Many human studies have revealed the potential of OT to treat autism spectrum disorders and schizophrenia. OT interacts with the OT receptor (OTR) as well as vasopressin 1a and 1b receptors (V1aR, V1bR) as an agonist, and agonistic activity for V1aR and V1bR may have a negative impact on the therapeutic effects of OTR agonism in the CNS. An OTR-selective agonistic peptide, FE 202767, in which the structural differences from OT are a sulfide bond instead of a disulfide bond, and N-alkylglycine replacement for Pro at position 7, was reported...
April 12, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28430144/a-systems-biology-approach-using-transcriptomic-data-reveals-genes-and-pathways-in-porcine-skeletal-muscle-affected-by-dietary-lysine
#14
Taiji Wang, Jean M Feugang, Mark A Crenshaw, Naresh Regmi, John R Blanton, Shengfa F Liao
Nine crossbred finishing barrows (body weight 94.4 ± 6.7 kg) randomly assigned to three dietary treatments were used to investigate the effects of dietary lysine on muscle growth related metabolic and signaling pathways. Muscle samples were collected from the longissimus dorsi of individual pigs after feeding the lysine-deficient (4.30 g/kg), lysine-adequate (7.10 g/kg), or lysine-excess (9.80 g/kg) diet for five weeks, and the total RNA was extracted afterwards. Affymetrix Porcine Gene 1.0 ST Array was used to quantify the expression levels of 19,211 genes...
April 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28429785/natriuretic-peptide-receptor-guanylyl-cyclase-a-pathway-counteracts-glomerular-injury-evoked-by-aldosterone-through-p38-mitogen-activated-protein-kinase-inhibition
#15
Yukiko Kato, Kiyoshi Mori, Masato Kasahara, Keisuke Osaki, Akira Ishii, Keita P Mori, Naohiro Toda, Shoko Ohno, Takashige Kuwabara, Takeshi Tokudome, Ichiro Kishimoto, Moin A Saleem, Taiji Matsusaka, Kazuwa Nakao, Masashi Mukoyama, Motoko Yanagita, Hideki Yokoi
Guanylyl cyclase-A (GC-A) signaling, a natriuretic peptide receptor, exerts renoprotective effects by stimulating natriuresis and reducing blood pressure. Previously we demonstrated massive albuminuria with hypertension in uninephrectomized, aldosterone-infused, and high salt-fed (ALDO) systemic GC-A KO mice with enhanced phosphorylation of p38 mitogen-activated protein kinase (MAPK) in podocytes. In the present study, we examined the interaction between p38 MAPK and GC-A signaling. The administration of FR167653, p38 MAPK inhibitor, reduced systolic blood pressure (SBP), urinary albumin excretion, segmental sclerosis, podocyte injury, and apoptosis...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28412624/effects-of-1-25-dihydroxyvitamin-d3-in-an-ovalbumin-induced-allergic-rhinitis-model
#16
Baiwen Chen, Shenhong Qu, Min Li, Linsong Ye, Shaojie Zhang, Taijie Qin, Hua Fan
IL-17-producing Th17 cells play an important role in allergic airway diseases, but their local expression and regulation in allergic rhinitis (AR) is not well understood. This study investigated the effects of 1,25-dihydroxyvitamin D3 (1,25-(OH)2D3) on T-bet expression, Th1 cells, Th2 cells, Th17 cells and IL-33-positive epithelial cells in AR. C57BL/6 mice were intranasally sensitized and challenged with ovalbumin (OVA), and 1,25-(OH)2D3 was intraperitoneally injected into AR mice. Cytokine levels were measured with enzyme-linked immunosorbent assays, phenotypic analysis of Th1, Th2 and Th17 cells in the spleen was completed with flow cytometry, and the CD4(+)IL-17(+) cells in the Nasopharynx-associated lymphoid tissue (NALT) and IL-33-positive cells in nasal mucosa was evaluated with immunofluorescence microscopy...
April 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28389725/estimation-of-human-body-volume-bv-from-anthropometric-measurements-based-on-three-dimensional-3d-scan-technique
#17
Xingguo Liu, Jianwei Niu, Linghua Ran, Taijie Liu
BACKGROUND: This study aimed to develop estimation formulae for the total human body volume (BV) of adult males using anthropometric measurements based on a three-dimensional (3D) scanning technique. Noninvasive and reliable methods to predict the total BV from anthropometric measurements based on a 3D scan technique were addressed in detail. METHODS: A regression analysis of BV based on four key measurements was conducted for approximately 160 adult male subjects...
April 7, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28380826/optimal-design-of-4lp-mode-multicore-fibers-for-high-spatial-multiplicity
#18
Yuki Tobita, Takeshi Fujisawa, Taiji Sakamoto, Takashi Matsui, Shota Saitoh, Katsuhiro Takenaga, Kazuhiko Aikawa, Shinichi Aozasa, Kazuhide Nakajima, Kunimasa Saitoh
High spatial multiplicity fiber designs are presented for homogeneous and heterogeneous 4LP-mode multicore fibers (MCFs) that support six spatial modes per core. The high-spatial-density 4LP-mode MCF design methodology is explained in detail. The influence of the number of cores on the cladding diameter (D<sub>cl</sub>) and relative core multiplicity factor (RCMF) is investigated. The optimal core designs and MCF layouts with square and triangular lattices maintain glass fiber reliability (maximum D<sub>cl</sub> = 250 μm)...
March 6, 2017: Optics Express
https://www.readbyqxmd.com/read/28380067/does-tai-chi-relieve-fatigue-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#19
Yu Xiang, Liming Lu, Xiankun Chen, Zehuai Wen
BACKGROUND: Fatigue is not only a familiar symptom in our daily lives, but also a common ailment that affects all of our bodily systems. Several randomized controlled trials (RCTs) have proven Tai Chi to be beneficial for patients suffering from fatigue, however conclusive evidence is still lacking. A systematic review and meta-analysis was performed on all RCTs reporting the effects of Tai Chi for fatigue. METHODS: In the end of April 2016, seven electronic databases were searched for RCTs involving Tai Chi for fatigue...
2017: PloS One
https://www.readbyqxmd.com/read/28353592/the-effect-of-mdr1-c3435t-polymorphism-on-the-eradication-rate-of-h-pylori-infection-in-ppi-based-triple-therapy-a-meta-analysis
#20
Meng Li, Taijie Li, Shihui Guo, Hongjie Liang, Dunke Jiang
BACKGROUND: Several studies have reported that multidrug resistance gene 1 (MDR1) C3435T polymorphism was associated with the rate of Helicobacter pylori (H. pylori) eradication in proton pump inhibitor (PPI)-based triple therapy. However, the conclusions were inconsistent. Therefore, this meta-analysis was conducted to evaluate the impact of MDR1 C3435T polymorphism on H. pylori eradication by PPI-based triple therapy. METHODS: Seven eligible studies published up to August 2016 and including 1019 patients were identified by searching the Chinese Biomedical Literature database, Wan fang, PubMed, and the Web of Science electronic databases...
March 2017: Medicine (Baltimore)
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