keyword
MENU ▼
Read by QxMD icon Read
search

organ preservation

keyword
https://www.readbyqxmd.com/read/29331402/tailored-surgical-treatment-of-duodenal-polyposis-in-familial-adenomatous-polyposis-syndrome
#1
Toms Augustin, Maitham A Moslim, Andrew Tang, R Matthew Walsh
BACKGROUND: To review our experience in patients undergoing operative treatment for duodenal polypoisis associated with familial adenomatous polyposis with an emphasis on operative approach and long-term outcomes. METHODS: Duodenal polypoisis associated with familial adenomatous polyposis patients undergoing operative treatment were studied retrospectively excluding patients with preoperative duodenal cancer. RESULTS: Of 767 patients in the database, 63 (8...
January 10, 2018: Surgery
https://www.readbyqxmd.com/read/29326416/strategies-to-restore-adenosine-triphosphate-atp-level-after-more-than-20-hours-of-cold-ischemia-time-in-human-marginal-kidney-grafts
#2
Matteo Ravaioli, Maurizio Baldassare, Francesco Vasuri, Gianandrea Pasquinelli, Maristella Laggetta, Sabrina Valente, Vanessa De Pace, Flavia Neri, Antonio Siniscalchi, Chiara Zanfi, Valentina R Bertuzzo, Paolo Caraceni, Davide Trerè, Pasquale Longobardi, Antonio D Pinna
BACKGROUND The persisting organ shortage in the field of transplantation recommends the use of marginal kidneys which poorly tolerate ischemic damage. Adenosine triphosphate (ATP) depletion during cold ischemia time (CIT) is considered crucial for graft function. We tested different strategies of kidney perfusion before transplantation in the attempt to improve the technique. MATERIAL AND METHODS Twenty human discarded kidneys from donors after brain death and with at least 20 hours of CIT were randomized to the following experimental groups (treatment time three-hours at 4°C): a) static cold storage (CS); b) static cold hyperbaric oxygenation (Hyp); c) hypothermic perfusion (PE); d) hypothermic perfusion in hyperbaric oxygenation (PE-Hyp); and e) hypothermic oxygenated perfusion (PE-O2)...
January 12, 2018: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29326297/current-status-and-future-directions-of-l%C3%A3-vy-walk-research
#3
REVIEW
Andy M Reynolds
Lévy walks are a mathematical construction useful for describing random patterns of movement with bizarre fractal properties that seem to have no place in biology. Nonetheless, movement patterns resembling Lévy walks have been observed at scales ranging from the microscopic to the ecological. They have been seen in the molecular machinery operating within cells during intracellular trafficking, in the movement patterns of T cells within the brain, in DNA, in some molluscs, insects, fish, birds and mammals, in the airborne flights of spores and seeds, and in the collective movements of some animal groups...
January 11, 2018: Biology Open
https://www.readbyqxmd.com/read/29325720/development-of-pancreatic-machine-perfusion-translational-steps-from-porcine-to-human-models
#4
Karim Hamaoui, Sally Gowers, Bynvant Sandhu, Natalie Vallant, Terry Cook, Martyn Boutelle, Daniel Casanova, Vassilios Papalois
BACKGROUND: Hypothermic machine perfusion (HMP) is increasingly being used for extended criteria kidney grafts. Pancreatic HMP is challenging because physiologically the pancreas is a low-flow organ susceptible to edema. We report the successful development of preclinical HMP models using porcine pancreases, as well as human pancreases unsuitable for clinical transplantation. METHODS: Ten porcine pancreases were used in the development of these perfusion models...
January 8, 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29323458/metal-organic-framework-encapsulation-for-the-preservation-and-photothermal-enhancement-of-enzyme-activity
#5
Sirimuvva Tadepalli, Jieun Yim, Sisi Cao, Zheyu Wang, Rajesh R Naik, Srikanth Singamaneni
Interfacing biomolecules with functional materials is a key strategy toward achieving externally-triggered biological function. The rational integration of functional proteins, such as enzymes, with plasmonic nanostructures that exhibit unique optical properties such as photothermal effect provides a means to externally control the enzyme activity. However, due to the labile nature of enzymes, the photothermal effect of plasmonic nanostructures is mostly utilized for the enhancement of the biocatalytic activity of thermophilic enzymes...
January 11, 2018: Small
https://www.readbyqxmd.com/read/29322650/molecular-characterization-of-the-%C3%AE-amyloid-4-10-epitope-of-plaque-specific-a%C3%AE-antibodies-by-affinity-mass-spectrometry-using-alanine-site-mutation
#6
Raluca Ștefănescu, Loredana Lupu, Marilena Manea, Roxana E Iacob, Michael Przybylski
Alzheimer disease is a neurodegenerative disease affecting an increasing number of patients worldwide. Current therapeutic strategies are directed to molecules capable to block the aggregation of the β-amyloid(1-42) (Aβ) peptide and its shorter naturally occurring peptide fragments into toxic oligomers and amyloid fibrils. Aβ-specific antibodies have been recently developed as powerful antiaggregation tools. The identification and functional characterization of the epitope structures of Aβ antibodies contributes to the elucidation of their mechanism of action in the human organism...
January 2018: Journal of Peptide Science: An Official Publication of the European Peptide Society
https://www.readbyqxmd.com/read/29320487/multicolor-quantitative-confocal-imaging-cytometry
#7
Daniel L Coutu, Konstantinos D Kokkaliaris, Leo Kunz, Timm Schroeder
Multicolor 3D quantitative imaging of large tissue volumes is necessary to understand tissue development and organization as well as interactions between distinct cell types in situ. However, tissue imaging remains technically challenging, particularly imaging of bone and marrow. Here, we describe a pipeline to reproducibly generate high-dimensional quantitative data from bone and bone marrow that may be extended to any tissue. We generate thick bone sections from adult mouse femurs with preserved tissue microarchitecture and demonstrate eight-color imaging using confocal microscopy without linear unmixing...
January 2018: Nature Methods
https://www.readbyqxmd.com/read/29318822/-design-and-implementation-of-data-reporting-system-for-chinese-materia-medica-resources-survey
#8
Hui Wang, Xiao-Bo Zhang, Xiao-Guang Ge, Zhi-Xian Jing, Ling Wang, Yu-Ping Zhao, Lan-Ping Guo, Lu-Qi Huang
The collection, summary and sharing of all kinds of survey data are one of the main tasks and achievements in the national census of Chinese materia medica resources organized and implemented by the State Administration of Traditional Chinese Medicine. It is a key link in the implementation of the national census of Chinese materia medica resources. Based on the client / server architecture, the data reporting system for Chinese materia medica resources survey has been established for reporting system application model of geospatial data service based on Web implementation, through the SOA framework, to achieve the data collection summary of the seven aspects of the local data configuration, data reporting, data verification, data reporting, PDA data import and export, APP data import, track instrument data import...
November 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29318815/-brief-introduction-to-progress-of-national-census-of-chinese-medicine-resources-pilot
#9
Lu-Qi Huang, Li-Ying Sun, Xiao-Bo Zhang, Lan-Ping Guo, Hui Wang, Meng Li, Zhi-Xian Jing
Since the beginning of 2011, with the strong support of the Ministry of Finance, the State Administration of Traditional Chinese Medicine has organized the pilot work on the census of traditional Chinese medicine resources (hereinafter referred to as the "pilot work"). At all levels of Chinese medicine management departments under the joint efforts of the pilot work has achieved initial results. For the fourth national comprehensive implementation of traditional Chinese medicine resources, the technical methods have been optimized, the working teams have been professionally trained, and the experiences are accumulated...
November 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29318763/mineralisation-of-filamentous-cyanobacteria-in-lake-thetis-stromatolites-western-australia
#10
D Wacey, L Urosevic, M Saunders, A D George
Stromatolites are cited as some of the earliest evidence for life on Earth, but problems remain in reconciling the paucity of microfossils in ancient carbonate examples with the abundance of microbes that help construct modern analogues. Here, we trace the mineralisation pathway of filamentous cyanobacteria within stromatolites from Lake Thetis, Western Australia, providing new insights into microfossil preservation in carbonate stromatolites. Lake Thetis cyanobacteria exhibit a spectrum of mineralisation processes that include early precipitation of Mg-silicates, largely controlled by the morphochemical features of the cyanobacteria, followed by aragonite formation that is inferred to be driven by heterotrophic activity...
January 10, 2018: Geobiology
https://www.readbyqxmd.com/read/29317046/retro-peritoneal-cooling-for-kidney-preservation-from-multi-organ-cadaver-donors
#11
Anastasio Salazar-Bañuelos, Mauricio Monroy-Cuadros, Hoover Henriquez-Cooper
BACKGROUND: Minimizing ischemia is paramount in the procurement of kidneys for transplantation. A fast cooling and expeditious removal is ideal to minimize damage from warm ischemia, however, since the removal of kidneys is delayed in cadaver donation until all other organs are harvested, the risk of kidney damage increases due to contact with the warmer soft body tissues. Surgical techniques that expedite organ retrieval were developed to avoid organ damage. METHODS: We test a modification of Thomas Starzl's improved technique for multi-organ harvesting by interposing an ice bag between the posterior aspect of the kidney and the psoas muscle in a randomized trial with 21 multi-organ cadaver donors...
January 4, 2018: American Journal of Surgery
https://www.readbyqxmd.com/read/29316948/traditional-uses-of-medicinal-plants-practiced-by-the-indigenous-communities-at-mohmand-agency-fata-pakistan
#12
Muhammad Abdul Aziz, Muhammad Adnan, Amir Hasan Khan, Abdelaaty Abdelaziz Shahat, Mansour S Al-Said, Riaz Ullah
BACKGROUND: Plant-derived products have an imperative biological role against certain pathogenic organisms and were considered to be a major source of modern drugs. Rural people residing in developing countries are relying on traditional herbal medical system due to their strong believe and minimum access to allopathic medicines. Hence, ethnomedicinal knowledge is useful for the maintenance of community's based approaches under this medical system. Present study was carried out in an unexplored remote tribal area of Pakistan to investigate and document the existing ethnomedicinal knowledge on local flora...
January 9, 2018: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/29316185/ex-situ-86-hours-liver-perfusion-pushing-the-boundary-of-organ-preservation
#13
Qiang Liu, Ahmed Nassar, Laura Buccini, Patrick Grady, Basem Soliman, Ahmed Hassan, Daniele Pezzati, Giuseppe Iuppa, Teresa Diago Uso, Charles Miller, Cristiano Quintini
No abstract text is available yet for this article.
January 6, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29315823/high-rate-magnesium-sulfur-battery-with-improved-cyclability-based-on-metal-organic-framework-derivative-carbon-host
#14
Xuejun Zhou, Jing Tian, Jiulin Hu, Chilin Li
Mg batteries have the advantages of resource abundance, high volumetric energy density, and dendrite-free plating/stripping of Mg anodes. However the injection of highly polar Mg2+ cannot maintain the structural integrity of intercalation-type cathodes even for open framework prototypes. The lack of high-voltage electrolytes and sluggish Mg2+ diffusion in lattices or through interfaces also limit the energy density of Mg batteries. Mg-S system based on moderate-voltage conversion electrochemistry appears to be a promising solution to high-energy Mg batteries...
January 8, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29315312/taking-the-metabolic-pulse-of-the-world-s-coral-reefs
#15
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/29313601/incubation-under-fluid-dynamic-conditions-markedly-improves-the-structural-preservation-in-vitro-of-explanted-skeletal-muscles
#16
Flavia Carton, Laura Calderan, Manuela Malatesta
Explanted organs and tissues represent suitable experimental systems mimicking the functional and structural complexity of the living organism, with positive ethical and economic impact on research activities. However, their preservation in culture is generally limited, thus hindering their application as experimental models for biomedical research. In the present study, we investigated the potential of an innovative fluid dynamic culture system to improve the structural preservation in vitro of explanted mouse skeletal muscles (soleus)...
November 28, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/29305244/light-in-the-darkness-new-perspective-on-lanternfish-relationships-and-classification-using-genomic-and-morphological-data
#17
Rene P Martin, Emily E Olson, Matthew G Girard, Wm Leo Smith, Matthew P Davis
Massive parallel sequencing allows scientists to gather DNA sequences composed of millions of base pairs that can be combined into large datasets and analyzed to infer organismal relationships at a genome-wide scale in non-model organisms. Although the use of these large datasets is becoming more widespread, little to no work has been done in estimating phylogenetic relationships using UCEs in deep-sea fishes. Among deep-sea animals, the 257 species of lanternfishes (Myctophiformes) are among the most important open-ocean lineages, representing half of all mesopelagic vertebrate biomass...
January 2, 2018: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29303966/thyme-and-savory-essential-oil-vapor-treatments-control-brown-rot-and-improve-the-storage-quality-of-peaches-and-nectarines-but-could-favor-gray-mold
#18
Karin Santoro, Marco Maghenzani, Valentina Chiabrando, Pietro Bosio, Maria Lodovica Gullino, Davide Spadaro, Giovanna Giacalone
The effect of biofumigation, through slow-release diffusors, of thyme and savory essential oils (EO), was evaluated on the control of postharvest diseases and quality of peaches and nectarines. EO fumigation was effective in controlling postharvest rots. Naturally contaminated peaches and nectarines were exposed to EO vapors for 28 days at 0 °C in sealed storage cabinets and then exposed at 20 °C for five days during shelf-life in normal atmosphere, simulating retail conditions. Under low disease pressure, most treatments significantly reduced fruit rot incidence during shelf-life, while, under high disease pressure, only vapors of thyme essential oil at the highest concentration tested (10% v/v in the diffusor) significantly reduced the rots...
January 5, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29303479/intrinsic-adaptive-value-and-early-fate-of-gene-duplication-revealed-by-a-bottom-up-approach
#19
Guillermo Rodrigo, Mario A Fares
The population genetic mechanisms governing the preservation of gene duplicates, especially in the critical very initial phase, have remained largely unknown. Here, we demonstrate that gene duplication confers per se a weak selective advantage in scenarios of fitness trade-offs. Through a precise quantitative description of a model system, we show that a second gene copy serves to reduce gene expression inaccuracies derived from pervasive molecular noise and suboptimal gene regulation. We then reveal that such an accuracy in the phenotype yields a selective advantage in the order of 0...
January 5, 2018: ELife
https://www.readbyqxmd.com/read/29301417/isolated-kidney-perfusion-the-influence-of-pulsatile-flow
#20
Charlotte von Horn, Thomas Minor
Within the scope of transplantation research, ex vivo kidney perfusion has been proven an attractive model to study ischemia-reperfusion and preservation injury. Renal perfusion techniques also occupy scientists with the aim to optimize organ reconditioning and preparation prior to transplantation. This study investigated the influence of a pulsatile perfusion pattern that brings flow conditions closer to physiological situations, on renal perfusion characteristic and kidney function in the isolated perfused kidney...
January 4, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
keyword
keyword
46992
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"