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https://www.readbyqxmd.com/read/29351230/comparison-of-antioxidative-effects-of-insect-tea-and-its-raw-tea-kuding-tea-polyphenols-in-kunming-mice
#1
Xin Zhao, Jia-Le Song, Ruokun Yi, Guijie Li, Peng Sun, Kun-Young Park, Huayi Suo
Kudingcha is a traditional Chinese tea, and insect tea is a special drink produced by the metabolism of insect larvae using the raw Kuding tea. Insect tea polyphenols (ITP) and its raw tea (Kuding tea) polyphenols (KTP) are high-purity polyphenols extracted by centrifuge precipitation. The present study was designed to compare the antioxidative effects of insect tea polyphenols (ITP) and its raw tea (Kuding tea) polyphenols (KTP) on d-galactose-induced oxidation in Kunming (KM) mice. KM mice were treated with ITP (200 mg/kg) and KTP (200 mg/kg) by gavage, and vitamin C (VC, 200 mg/kg) was also used as a positive control by gavage...
January 19, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29349891/research-on-the-preparation-uniformity-and-stability-of-mixed-standard-substance-for-rapid-detection-of-goat-milk-composition
#2
Yuying Zhu, Jianmin Wang, Cunfang Wang
Taking fresh goat milk as raw material after filtering, centrifuging, hollow fiber ultrafiltration, allocating formula, value detection and preparation processing, a set of 10 goat milk mixed standard substances was prepared on the basis of one-factor-at-a-time using a uniform design method, and its accuracy, uniformity and stability were evaluated by paired t-test and F-test of one-way analysis of variance. The results showed that three milk composition contents of these standard products were independent of each other, and the preparation using the quasi-level design method, and without emulsifier was the best program...
January 19, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29349805/hybrid-continuous-flow-total-artificial-heart
#3
Carson Fox, Steven Chopski, Nohra Murad, Paul Allaire, Robert Mentzer, Joseph Rossano, Francisco Arabia, Amy Throckmorton
Clinical studies using total artificial hearts (TAHs) have demonstrated that pediatric and adult patients derive quality-of-life benefits from this form of therapy. Two clinically-approved TAHs and other pumps under development, however, have design challenges and limitations, including thromboembolic events, neurologic impairment, infection risk due to large size and percutaneous drivelines, and lack of ambulation, to name a few. To address these limitations, we are developing a hybrid-design, continuous-flow, implantable or extracorporeal, magnetically-levitated TAH for pediatric and adult patients with heart failure...
January 18, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29347671/kinetic-contact-driven-gigantic-energy-transfer-in-a-two-dimensional-lennard-jones-fluid-confined-to-a-rotating-pore
#4
Paweł Karbowniczek, Agnieszka Chrzanowska
A two-dimensional Lennard-Jones system in a circular and rotating container has been studied by means of molecular dynamics technique. A nonequilibrium transition to the rotating stage has been detected in a delayed time since an instant switching of the frame rotation. This transition is attributed to the increase of the density at the wall because of the centrifugal force. At the same time the phase transition occurs, the inner system changes its configuration of the solid-state type into the liquid type...
November 2017: Physical Review. E
https://www.readbyqxmd.com/read/29347073/orientational-dynamics-of-a-triaxial-ellipsoid-in-simple-shear-flow-influence-of-inertia
#5
Tomas Rosén, Yusuke Kotsubo, Cyrus K Aidun, Minh Do-Quang, Fredrik Lundell
The motion of a single ellipsoidal particle in simple shear flow can provide valuable insights toward understanding suspension flows with nonspherical particles. Previously, extensive studies have been performed on the ellipsoidal particle with rotational symmetry, a so-called spheroid. The nearly prolate ellipsoid (one major and two minor axes of almost equal size) is known to perform quasiperiodic or even chaotic orbits in the absence of inertia. With small particle inertia, the particle is also known to drift toward this irregular motion...
July 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346441/a-portable-system-for-processing-donated-whole-blood-into-high-quality-components-without-centrifugation
#6
Sean C Gifford, Briony C Strachan, Hui Xia, Eszter Vörös, Kian Torabian, Taylor A Tomasino, Gary D Griffin, Benjamin Lichtiger, Fleur M Aung, Sergey S Shevkoplyas
BACKGROUND: The use of centrifugation-based approaches for processing donated blood into components is routine in the industrialized world, as disparate storage conditions require the rapid separation of 'whole blood' into distinct red blood cell (RBC), platelet, and plasma products. However, the logistical complications and potential cellular damage associated with centrifugation/apheresis manufacturing of blood products are well documented. The objective of this study was to evaluate a proof-of-concept system for whole blood processing, which does not employ electromechanical parts, is easily portable, and can be operated immediately after donation with minimal human labor...
2018: PloS One
https://www.readbyqxmd.com/read/29346013/purification-of-lymphocytes-by-acoustic-separation-in-plastic-microchannels
#7
Charles Lissandrello, Ryan Dubay, Kenneth T Kotz, Jason Fiering
Emerging cell therapies have created new demands for instruments that will increase processing efficiency. Purification of lymphocytes prior to downstream steps of gene transfer currently relies on centrifugal separation, which has drawbacks in output sample purity and process automation. Here, we present an alternative approach to blood cell purification using acoustic forces in plastic microchannels. We provide details regarding the system's ability to purify lymphocytes relative to other blood cell types while maintaining a high overall recovery, testing performance starting from leukapheresis product, buffy coat, and whole blood...
January 1, 2018: SLAS Technology
https://www.readbyqxmd.com/read/29345093/rapid-fabrication-of-detachable-three-dimensional-tissues-by-layering-of-cell-sheets-with-heating-centrifuge
#8
Yuji Haraguchi, Yuki Kagawa, Akiyuki Hasegawa, Hirotsugu Kubo, Tatsuya Shimizu
Confluent cultured cells on a temperature-responsive culture dish can be harvested as an intact cell sheet by decreasing temperature below 32°C. A three-dimensional (3-D) tissue can be fabricated by the layering of cell sheets. A resulting 3-D multi-layered cell sheet-tissue on a temperature-responsive culture dish can be also harvested without any damage by only temperature decreasing. For shortening the fabrication time of the 3-D multi-layered constructs, we attempted to layer cell sheets on a temperature-responsive culture dish with centrifugation...
January 18, 2018: Biotechnology Progress
https://www.readbyqxmd.com/read/29345045/the-in-vitro-release-of-cytokines-and-growth-factors-from-fibrin-membranes-produced-through-horizontal-centrifugation
#9
E S Lourenço, C F A B Mourão, P E C Leite, J M Granjeiro, M D Calasans-Maia, G G Alves
Platelet-rich fibrin (PRF) membranes are biomaterials widely used for therapeutic purposes, and canonically produced through the processing of peripheral blood with fixed-angle rotor centrifuges. In this work, we evaluate the in vitro stability and release of cytokines and growth factors when these biomaterials are produced with a horizontal swing-out clinical centrifuge. Membranes produced from the blood of 14 donors were morphologically evaluated by scanning electron microscopy and fluorescence microscopy, and their stability was assessed by photographic recording after incubation in culture medium for up to 28 days...
January 18, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29344805/salivary-biomarkers-for-oral-cancer-and-pre-cancer-screening-a-review
#10
REVIEW
J Kaur, R Jacobs, Y Huang, N Salvo, C Politis
OBJECTIVE: The objective of the study was to conduct a systematic review of the literature assessing potential salivary biomarkers of oral cancer and pre-cancer and discuss emerging issues and challenges in relation to oral cancer and pre-cancer diagnostics. MATERIALS AND METHODS: Search for articles involved the Medline, PubMed, and EMBASE. Specific terms were used from January 1995 to March 2017 by three experts. RESULTS: This search collected 270 articles, of which 105 articles such as reviews, case reports, news, letter to editor, etc...
January 17, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29342891/influence-of-the-composition-structure-and-physical-and-chemical-properties-of-aluminium-oxide-based-sorbents-on-water-adsorption-ability
#11
Ruslan Zotov, Eugene Meshcheryakov, Alesia Livanova, Tamara Minakova, Oleg Magaev, Lyubov Isupova, Irina Kurzina
Interaction between the water adsorption ability of aluminium-oxide-based sorbents and their chemical composition, acid-base properties of the surface, and textural characteristics has been analysed. Alumina desiccants were synthesized with the centrifugal-thermal activation of gibbsite followed by the hydration of the gibbsite under mild conditions. It was demonstrated that the multicyclic adsorption regeneration of samples under realistic conditions results in structural transformations and changes in the acidity of their surfaces and water adsorption ability...
January 14, 2018: Materials
https://www.readbyqxmd.com/read/29342098/mechano-enzymatic-deconstruction-with-a-new-enzymatic-cocktail-to-enhance-enzymatic-hydrolysis-and-bioethanol-fermentation-of-two-macroalgae-species
#12
Sameh Amamou, Cecilia Sambusiti, Florian Monlau, Eric Dubreucq, Abdellatif Barakat
The aim of this study was to explore the efficiency of a mechano-enzymatic deconstruction of two macroalgae species for sugars and bioethanol production, by using a new enzymatic cocktail (Haliatase) and two types of milling modes (vibro-ball: VBM and centrifugal milling: CM). By increasing the enzymatic concentration from 3.4 to 30 g/L, the total sugars released after 72 h of hydrolysis increased (from 6.7 to 13.1 g/100 g TS and from 7.95 to 10.8 g/100 g TS for the green algae U. lactuca and the red algae G...
January 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29341265/cicatricial-alopecia-research-foundation-meeting-may-2016-progress-towards-the-diagnosis-treatment-and-cure-of-primary-cicatricial-alopecias
#13
John P Sundberg, Maria K Hordinsky, Wilma Bergfeld, Yolanda M Lenzy, Amy J McMichael, Angela M Christiano, Tracy McGregor, Kurt S Stenn, Raja K Sivamani, C Herbert Pratt, Lloyd E King
Primary Cicatricial Alopecias (PCAs) are a group of skin diseases in which there is progressive and permanent destruction of hair follicles followed by replacement with fibrous tissue. Unfortunately, by the time patients seek clinical evaluation of their hair loss, the skin is already inflamed and/or scarred, so there is little hope for a return to their normal hair growth pattern. Clinical and basic science investigations are now focusing on three forms of human PCA, lichen planopilaris (LPP), frontal fibrosing alopecia (FFA), and central centrifugal cicatricial alopecia (CCCA)...
January 16, 2018: Experimental Dermatology
https://www.readbyqxmd.com/read/29341216/primary-scarring-alopecia-a-retrospective-study-of-89-patients-in-taiwan
#14
Hsing-Jou Su, An-Yu Cheng, Cheng-Han Liu, Chia-Bau Chu, Chaw-Ning Lee, Chao-Kai Hsu, Julia Yu-Yun Lee, Chao-Chun Yang
Primary scarring alopecia (PSA) is caused by irreversible damage to the hair epithelial stem cells that reside in hair follicles. There is limited published work regarding PSA amongst the Asian population. The aim of this study was to evaluate the clinical features and to characterize the subtypes of PSA in southern Taiwan. In this retrospective case series, we reviewed 89 patients with pathology-confirmed PSA. The data was collected from National Cheng Kung University Hospital between 1988 through 2016. The clinical and histological data were reviewed, and the patients were characterized into different subtypes of PSA based on the clinical features and histological findings...
January 16, 2018: Journal of Dermatology
https://www.readbyqxmd.com/read/29340931/vascutrainer-a-mobile-and-disposable-bioreactor-system-for-the-conditioning-of-tissue-engineered-vascular-grafts
#15
Frederic Wolf, Diana M Rojas González, Ulrich Steinseifer, Markus Obdenbusch, Werner Herfs, Christian Brecher, Stefan Jockenhoevel, Petra Mela, Thomas Schmitz-Rode
In vitro tissue engineering of vascular grafts requires dynamic conditioning in a bioreactor system for in vitro tissue maturation and remodeling to receive a mechanically adequate and hemocompatible implant. The goal of the current work was to develop a bioreactor system for the conditioning of vascular grafts which is (i) able to create a wide range of flow, pressure and frequency conditions, including physiological ones; (ii) compact and easy to assemble; (iii) transportable; (iv) disposable. The system is driven by a small centrifugal pump controlled via a custom-made control unit, which can also be operated on batteries to allow for autonomous transportation...
January 16, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29340642/identifying-corneal-infections-in-formalin-fixed-specimens-using-next-generation-sequencing
#16
Zhigang Li, Florian P Breitwieser, Jennifer Lu, Albert S Jun, Laura Asnaghi, Steven L Salzberg, Charles G Eberhart
Purpose: We test the ability of next-generation sequencing, combined with computational analysis, to identify a range of organisms causing infectious keratitis. Methods: This retrospective study evaluated 16 cases of infectious keratitis and four control corneas in formalin-fixed tissues from the pathology laboratory. Infectious cases also were analyzed in the microbiology laboratory using culture, polymerase chain reaction, and direct staining. Classified sequence reads were analyzed with two different metagenomics classification engines, Kraken and Centrifuge, and visualized using the Pavian software tool...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29340525/time-collection-and-storage-conditions-of-lipid-profile
#17
C N França, C C Mendes, C E S Ferreira
The stability of samples is crucial for getting reliable concentrations of many analytes, including lipid profile. Thus, the goal of this study was to analyze lipid profile under different storage and temperature conditions. This was a prospective study with 809 patients of both genders. Total cholesterol, triglycerides, high-density lipoprotein cholesterol, low density lipoprotein cholesterol and non-high-density lipoprotein were measured within 1 h from collection at room temperature, after 2-3 h of refrigeration (8°C) and after 4-5 h at room temperature...
January 11, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29339740/understanding-turbulent-free-surface-vortex-flows-using-a-taylor-couette-flow-analogy
#18
Sean Mulligan, Giovanni De Cesare, John Casserly, Richard Sherlock
Free-surface vortices have long been studied to develop an understanding of similar rotating flow phenomena observed in nature and technology. However, a complete description of its turbulent three-dimensional flow field still remains elusive. In contrast, the related Taylor-Couette flow system has been well explicated which classically exhibits successive instability phases manifested in so-called Taylor vortices. In this study, observations made on the turbulent free-surface vortex revealed distinguishable, time-dependent "Taylor-like" vortices in the secondary flow field similar to the Taylor-Couette flow system...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339599/full-scale-performance-of-selected-starch-based-biodegradable-polymers-in-sludge-dewatering-and-recommendation-for-applications
#19
Kuangxin Zhou, Johan Stüber, Rabea-Luisa Schubert, Christian Kabbe, Matthias Barjenbruch
Agricultural reuse of dewatered sludge is a valid route for sludge valorization for small and mid-size wastewater treatment plants (WWTPs) due to the direct utilization of nutrients. A more stringent of German fertilizer ordinance requires the degradation of 20% of the synthetic additives like polymeric substance within two years, which came into force on 1 January 2017. This study assessed the use of starch-based polymers for full-scale dewatering of municipal sewage sludge. The laboratory-scale and pilot-scale trials paved the way for full-scale trials at three WWTPs in Germany...
January 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29337715/labyrinthine-sequestrum-a-case-report-and-review-of-the-literature
#20
Julie B Guerin, Diana L Vork, Lourdes Eguiguren, Alexander P Marston, Colin L W Driscoll, Matthew L Carlson, Nancy K Henry, John I Lane
OBJECTIVE: To report the presentation, diagnosis, management, and convalescence of labyrinthine sequestrum (LS) and summarize all previously published cases. PATIENT(S): Eleven-year-old female with LS. INTERVENTION(S): Multidisciplinary diagnostic evaluation and treatment. MAIN OUTCOME MEASURES: Imaging and laboratory findings, medical and surgical treatment. RESULTS: We describe a case of LS secondary to medically recalcitrant suppurative otitis media in an 11-year-old female and review all eight previously reported cases...
January 15, 2018: Otology & Neurotology
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