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https://www.readbyqxmd.com/read/29352932/the-effect-of-nanocrystalline-cellulose-on-flow-properties-of-fiber-crop-aqueous-suspension
#1
Samira Gharehkhani, Seyed Farid Seyed Shirazi, Hooman Yarmand, Elham Montazer, Salim Newaz Kazi, Rushdan Ibrahim, Mehdi Ashjaei, Nurin Wahidah Binti Mohd Zulkifli, Sadegh Rahmati
Nanocrystalline cellulose (NCC) a nature-based material, has gained significant attentions for its unique properties. The present study aims to investigate the flow behavior of cellulosic suspension containing non-wood pulp fibers and NCC, by means of rheological and pressure drop measurements. The NCC sample was prepared by sulfuric acid hydrolysis from Acacia mangium fibers. The rheological properties of kenaf/NCC suspensions were studied using viscosity and yield stress measurements. The pressure drop properties of the suspension flow were studied with respect to variation in flow velocity (0...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29352890/nanocrystalline-cellulose-as-an-eco-friendly-reinforcing-additive-to-polyurethane-coating-for-augmented-anticorrosive-behavior
#2
M Abd El-Fattah, Abdulraheim M A Hasan, Mohamed Keshawy, Ashraf M El Saeed, Ossama M Aboelenien
Nanocrystalline cellulose (NCC) and micro-powdered cellulose (MPC) were extracted from rice straw by mechanical and alkali treatment methods, then characterized via infrared spectroscopy and dynamic light scattering. A series of polyurethane nanocrystalline cellulose composite (PNCCC) and polyurethane micro-powdered cellulose composite (PMPCC) coatings were prepared with various loading levels of NCC and MPC from 0.5 to 2.0 wt.%, and the coatings were applied onto the pretreated mild steel substrate at room temperature...
March 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29350579/evaluation-of-respiratory-motion-corrected-cone-beam-ct-at-end-expiration-in-abdominal-radiotherapy-sites-a-prospective-study
#3
Russell E Kincaid, Agung E Hertanto, Yu-Chi Hu, Abraham J Wu, Karyn A Goodman, Hai D Pham, Ellen D Yorke, Qinghui Zhang, Qing Chen, Gig S Mageras
BACKGROUND: Cone beam computed tomography (CBCT) for radiotherapy image guidance suffers from respiratory motion artifacts. This limits soft tissue visualization and localization accuracy, particularly in abdominal sites. We report on a prospective study of respiratory motion-corrected (RMC)-CBCT to evaluate its efficacy in localizing abdominal organs and improving soft tissue visibility at end expiration. MATERIAL AND METHODS: In an IRB approved study, 11 patients with gastroesophageal junction (GEJ) cancer and five with pancreatic cancer underwent a respiration-correlated CT (4DCT), a respiration-gated CBCT (G-CBCT) near end expiration and a one-minute free-breathing CBCT scan on a single treatment day...
January 19, 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29343101/macon-a-web-tool-for-computing-dna-methylation-data-obtained-by-the-illumina-infinium-human-dna-methylation-beadarray
#4
Naoko Iida, Yoshihiro Okuda, Osamu Ogasawara, Satoshi Yamashita, Hideyuki Takeshima, Toshikazu Ushijima
AIM: Bioinformatics analysis for Illumina Infinium Human DNA methylation BeadArray is essential, but still remains difficult task for many experimental researchers. We here aimed to develop a browser-accessible bioinformatics tool for analyzing the BeadArray data. MATERIALS & METHODS: The tool was established as an analytical pipeline using R, Perl and Python programming languages. RESULTS: We introduced a method that groups neighboring probes into a genomic block, which facilitated efficient identification of densely methylated/unmethylated regions...
January 18, 2018: Epigenomics
https://www.readbyqxmd.com/read/29326302/role-of-clc-k-and-barttin-in-low-potassium-induced-sodium-chloride-cotransporter-activation-and-hypertension-in-mouse-kidney
#5
Naohiro Nomura, Wakana Shoda, Yuanlong Wang, Shintaro Mandai, Taisuke Furusho, Daiei Takahashi, Moko Zeniya, Eisei Sohara, Tatemitsu Rai, Shinichi Uchida
The sodium-chloride cotransporter (NCC) has been identified as a key molecule regulating potassium balance. The mechanisms of NCC regulation during low extracellular potassium concentrations have been studied in vitro. These studies have shown that hyperpolarization increased chloride efflux, leading to the activation of chloride-sensitive WNK kinases and their downstream molecules, including STE20/SPS1-related proline/alanine-rich kinase (SPAK) and NCC. However, this mechanism was not studied in vivo Previously, we developed the barttin hypomorphic mouse ( Bsndneo/neo mice), expressing very low levels of barttin and ClC-K channels, because barttin is an essential ß-subunit of ClC-K...
January 11, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29323234/caveolin-1-promotes-renal-water-and-salt-reabsorption
#6
Yan Willière, Aljona Borschewski, Andreas Patzak, Tatiana Nikitina, Carsten Dittmayer, Anna L Daigeler, Markus Schuelke, Sebastian Bachmann, Kerim Mutig
Caveolin-1 (Cav1) is essential for the formation of caveolae. Little is known about their functional role in the kidney. We tested the hypothesis that caveolae modulate renal salt and water reabsorption. Wild-type (WT) and Cav1-deficient (Cav1-/-) mice were studied. Cav1 expression and caveolae formation were present in vascular cells, late distal convoluted tubule and principal connecting tubule and collecting duct cells of WT but not Cav1-/- kidneys. Urinary sodium excretion was increased by 94% and urine flow by 126% in Cav1-/- mice (p < 0...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29315312/taking-the-metabolic-pulse-of-the-world-s-coral-reefs
#7
Tyler Cyronak, Andreas J Andersson, Chris Langdon, Rebecca Albright, Nicholas R Bates, Ken Caldeira, Renee Carlton, Jorge E Corredor, Rob B Dunbar, Ian Enochs, Jonathan Erez, Bradley D Eyre, Jean-Pierre Gattuso, Dwight Gledhill, Hajime Kayanne, David I Kline, David A Koweek, Coulson Lantz, Boaz Lazar, Derek Manzello, Ashly McMahon, Melissa Meléndez, Heather N Page, Isaac R Santos, Kai G Schulz, Emily Shaw, Jacob Silverman, Atsushi Suzuki, Lida Teneva, Atsushi Watanabe, Shoji Yamamoto
Worldwide, coral reef ecosystems are experiencing increasing pressure from a variety of anthropogenic perturbations including ocean warming and acidification, increased sedimentation, eutrophication, and overfishing, which could shift reefs to a condition of net calcium carbonate (CaCO3) dissolution and erosion. Herein, we determine the net calcification potential and the relative balance of net organic carbon metabolism (net community production; NCP) and net inorganic carbon metabolism (net community calcification; NCC) within 23 coral reef locations across the globe...
2018: PloS One
https://www.readbyqxmd.com/read/29310825/potassium-intake-modulates-the-thiazide-sensitive-sodium-chloride-cotransporter-ncc-activity-via-the-kir4-1-potassium-channel
#8
Ming-Xiao Wang, Catherina A Cuevas, Xiao-Tong Su, Peng Wu, Zhong-Xiuzi Gao, Dao-Hong Lin, James A McCormick, Chao-Ling Yang, Wen-Hui Wang, David H Ellison
Kir4.1 in the distal convoluted tubule plays a key role in sensing plasma potassium and in modulating the thiazide-sensitive sodium-chloride cotransporter (NCC). Here we tested whether dietary potassium intake modulates Kir4.1 and whether this is essential for mediating the effect of potassium diet on NCC. High potassium intake inhibited the basolateral 40 pS potassium channel (a Kir4.1/5.1 heterotetramer) in the distal convoluted tubule, decreased basolateral potassium conductance, and depolarized the distal convoluted tubule membrane in Kcnj10flox/flox mice, herein referred to as control mice...
January 6, 2018: Kidney International
https://www.readbyqxmd.com/read/29283974/the-role-of-distal-tubule-and-collecting-duct-sodium-reabsorption-in-sunitinib-induced-hypertension
#9
Jeannine Witte, Josephine Lampe, Anna Koenen, Ines Urbaneck, Antje Steinbach, Rainer Rettig, Olaf Grisk
OBJECTIVE: Antiangiogenic receptor tyrosine kinase inhibitors (RTKI) induce arterial hypertension which may limit their use. Renal fractional sodium excretion (FENa) is reduced in early RTKI-induced hypertension, whereas fractional lithium excretion is unaltered. Therefore, we tested the hypothesis that activated distal tubule and collecting duct sodium reabsorption contributes to RTKI-induced hypertension. METHODS: Amiloride-sensitive and hydrochlorothiazide (HCTZ)-sensitive fractional sodium reabsorption (FRNa) and renal epithelial sodium channel (ENaC) as well as sodium chloride cotransporter (NCC) abundances were determined in sunitinib-treated and control rats...
December 27, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/29283344/supervised-classification-of-the-accuracy-of-the-time-delay-estimation-in-ultrasound-elastography
#10
Mohamad Ghasemi Amidabadi, M Omair Ahmad, Hassan Rivaz
The accuracy of time-delay estimation (TDE) in ultrasound elastography is usually measured by calculating the value of normalized cross correlation (NCC) at the estimated displacement. NCC value, however, could be very high at a displacement estimate with large error, a well-known problem in TDE referred to as peak-hopping. Furthermore, NCC value could suffer from jitter error, which is due to electric noise and signal decorrelation. Herein, we propose a novel method to assess the accuracy of TDE by investigating the NCC profile around the estimated time-delay...
January 2018: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/29280427/evaluating-the-recombinant-t24h-enzyme-linked-immunoelectrotransfer-blot-assay-for-the-diagnosis-of-neurocysticercosis-in-a-panel-of-samples-from-a-large-community-based-randomized-control-trial-in-60-villages-in-burkina-faso
#11
Veronique Dermauw, Hélène Carabin, Assana Cissé, Athanase Millogo, Zébika Tarnagda, Rasmané Ganaba, John Noh, Sukwan Handali, Kathleen Breen, Vivian Richter, Rabiou Cissé, Pierre-Marie Preux, Marie-Paule Boncoeur-Martel, Andrea Sylvia Winkler, Anke Van Hul, Pierre Dorny, Sarah Gabriël
Current guidelines for the diagnosis of neurocysticercosis (NCC) recommend the use of the lentil lectin-bound glycoprotein enzyme-linked immunoelectrotransfer blot assay (LLGP-EITB) as the reference standard for serological testing. In response to the drawbacks involved with the use of the LLGP-EITB, a recombinant T24H antigen (rT24H) EITB assay was developed, with promising results. However, the test has yet to be evaluated among individuals from sub-Saharan Africa (SSA). The aim of the present study was to investigate the performance of the rT24H EITB assay for the detection of NCC cases in a panel of serum samples (N = 366, of which 173 patients presented with epileptic seizures and/or severe chronic headaches, and 193 matched manifestation-free participants) collected as part of a large community-based trial in Burkina Faso...
December 26, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29260655/spontaneously-arrested-transmission-of-cysticercosis-in-a-highly-endemic-village-with-a-very-low-migration-rate
#12
Oscar H Del Brutto, Seth E O'Neal, Pierre Dorny, Héctor H García
Taenia solium cysticercosis is difficult to eliminate without interventions or societal development. Atahualpa is a rural Ecuadorian village with documented low migration rate, where domestic pig raising is common and human cysticercosis is endemic. To assess neurocysticercosis (NCC) prevalence, 1,273 villagers aged ≥ 20 years underwent neuroimaging studies, which showed calcified lesions in 121 (9.5%) individuals, but no active disease. Likewise, positive reactions, apparently nonspecific, were found in only 3/200 subjects by the use of a monoclonal antibody-based enzyme-linked immunosorbent assay to detect T...
December 18, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29260362/discordances-in-er-pr-and-her2-between-primary-breast-cancer-and-brain-metastasis
#13
Jaehag Jung, Seung Hoon Lee, Mira Park, Ji Hye Youn, Sang Hoon Shin, Ho Shin Gwak, Heon Yoo
When distant metastases are discovered, it is important to determine receptor profiles of these lesions through histologic examination. However, brain metastasis sites are difficult to reach to be routinely biopsied. The purpose of this study was to determine expression profiles of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) in breast cancer brain metastasis (BCBM) and the existence of discordance between primary breast cancer and brain metastasis...
December 19, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29244236/pyro-phyllobilins-elusive-chlorophyll-catabolites-lacking-a-critical-carboxylate-function-of-the-natural-chlorophylls
#14
Chengjie Li, Klaus Wurst, Joachim Berghold, Maren Podewitz, Klaus R Liedl, Bernhard Kräutler
A beta-keto ester grouping is a characteristic of ring E of the chlorophylls (Chls). Its presence has also reinforced the original identification of nonfluorescent Chl catabolites (NCCs) as colorless, amphiphilic phyllobilins (PBs). Polar NCCs were also detected in higher plants, in which a free carboxyl replaced the ring E ester group. Such NCCs are surprisingly resistant to loss of this carboxyl unit, and NCCs lacking the latter, i.e. pyro-NCCs (pyNCCs), have not been reported. Intrigued by the question of the natural occurrence of pyro-phyllobilins (pyPBs), we have prepared a representative pyNCC by decarboxylation of a natural NCC...
December 15, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29232598/high-performance-bimetallic-alloy-catalyst-using-ni-and-n-co-doped-composite-carbon-for-the-oxygen-electro-reduction
#15
Won Suk Jung
In this study, a novel synthesis method for the bimetallic alloy catalyst is reported, which is subsequently used as an oxygen reduction catalyst in polymer electrolyte membrane fuel cells (PEMFCs). The support prepared from the Ni-chelate complex shows a mesoporous structure with a specific surface area of ca. 400 m2 g-1 indicating the suitable support for PEMFC applications. Ethylenediamine is converted to the nitrogen and carbon layers to protect the Ni particles which will diffuse into the Pt lattice at 800 °C...
December 6, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29221763/cognitive-impairment-and-quality-of-life-of-people-with-epilepsy-and-neurocysticercosis-in-zambia
#16
Anne L Nau, Kabemba E Mwape, Jasmin Wiefek, Kathie Schmidt, Emmanuel Abatih, Pierre Dorny, Nicolas Praet, Clarance Chiluba, Holger Schmidt, Isaac K Phiri, Andrea S Winkler, Sarah Gabriël, Joachim Blocher
Cognitive impairment and quality of life (Qol) are important to assess the burden of epilepsy and neurocysticercosis (NCC), which are common but neglected in Sub-Saharan Africa (SSA). The aims of this study were to assess cognitive performance and Qol of people with epilepsy (PWE) in Zambia and to explore differences in PWE with and without NCC. In this community based, cross-sectional case-control-study, 47 PWE and 50 healthy controls completed five neuropsychological tests (Mini Mental State Examination (MMSE), Digit Span, Selective Reminding Test (SRT), Spatial Recall Test (SPART), Test Battery of Attentional Performance (TAP)) and a World Health Organization (WHO) questionnaire of Qol...
December 5, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29214606/recent-progress-on-understanding-the-mechanisms-of-amyloid-nucleation
#17
REVIEW
Eri Chatani, Naoki Yamamoto
Amyloid fibrils are supramolecular protein assemblies with a fibrous morphology and cross-β structure. The formation of amyloid fibrils typically follows a nucleation-dependent polymerization mechanism, in which a one-step nucleation scheme has widely been accepted. However, a variety of oligomers have been identified in early stages of fibrillation, and a nucleated conformational conversion (NCC) mechanism, in which oligomers serve as a precursor of amyloid nucleation and convert to amyloid nuclei, has been proposed...
December 6, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/29193736/development-of-interstitial-cells-of-cajal-in-the-human-digestive-tract-as-the-result-of-reciprocal-induction-of-mesenchymal-and-neural-crest-cells
#18
REVIEW
Goran Radenkovic, Dina Radenkovic, Aleksandra Velickov
Neural crest cells (NCC) can migrate into different parts of the body and express their strong inductive potential. In addition, they are multipotent and are able to differentiate into various cell types with diverse functions. In the primitive gut, NCC induce differentiation of muscular structures and interstitial cells of Cajal (ICC), and they themselves differentiate into the elements of the enteric nervous system (ENS), neurons and glial cells. ICC develop by way of mesenchymal cell differentiation in the outer parts of the primitive gut wall around the myenteric plexus (MP) ganglia, with the exception of colon, where they appear simultaneously also at the submucosal border of the circular muscular layer around the submucosal plexus (SMP) ganglia...
November 28, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29190292/tnf-%C3%AE-blockade-suppresses-pericystic-inflammation-following-anthelmintic-treatment-in-porcine-neurocysticercosis
#19
Siddhartha Mahanty, Miguel A Orrego, Carla Cangalaya, M Paz Adrianzen, Gianfranco Arroyo, Juan Calcina, Armando E Gonzalez, Héctor H García, Cristina Guerra-Giraldez, Theodore E Nash
BACKGROUND: Neurocysticercosis (NCC) is an infection of the brain with the larval cyst of the tapeworm, Taenia solium. Cysticidal treatment induces parasite killing resulting in a post inflammatory response and seizures, which generally requires corticosteroid treatment to control inflammation. The nature of this response and how to best control it is unclear. We investigated the anti-inflammatory effects of pretreatment with etanercept (ETN), an anti-tumor necrosis factor agent, or dexamethasone (DEX), a high potency corticosteroid, on the post treatment inflammatory response in naturally infected pigs with neurocysticercosis after a single dose of the cysticidal drug praziquantel (PZQ)...
November 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29171200/clinical-characteristics-of-korean-patients-with-bicuspid-aortic-valve-who-underwent-aortic-valve-surgery
#20
Byung Joo Sun, Xin Jin, Jae Kwan Song, Sahmin Lee, Ji Hye Lee, Jun Bean Park, Seung Pyo Lee, Dae Hee Kim, Sung Ji Park, Yong Jin Kim, Goo Yeong Cho, Jong Min Song, Duk Hyun Kang, Dae Won Sohn
BACKGROUND AND OBJECTIVES: Clinical data for Korean patients with bicuspid aortic valve (BAV) that underwent aortic valve (AV) surgery are currently limited. METHODS: Data for 1,160 consecutive adult BAV patients who underwent AV surgery from 2000 to 2014 in 4 tertiary referral centers were retrospectively analyzed. A standard Case Reports form was used for clinical and echocardiographic parameters. RESULTS: Mean age at the time of AV surgery was 59±13 years...
November 10, 2017: Korean Circulation Journal
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