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https://www.readbyqxmd.com/read/29774807/robotic-pyelolithotomy-extended-pyelolithotomy-nephrolithotomy-and-anatrophic-nephrolithotomy
#1
Rabii Madi, Ashok Hemal
INTRODUCTION: We are a reporting on the indications, techniques, and limitations of robotic surgery in the management of renal stones disease. Robotic surgery is a good tool to manage large kidney and ureteral stones, particularly in patients with anatomic anomalies. We describe three techniques in managing staghorn kidney stones: robotic anatrophic nephrolithotomy, robotic pyelolithotomy, and robotic nephrolithotomy. MATERIAL AND METHODS: Robotic pyelolithotomy (RP) is ideal for patients with large renal pelvis and partial staghorn stone with a wide extra-renal pelvis...
May 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29772346/tackling-bioactive-glass-excessive-in-vitro-bioreactivity-preconditioning-approaches-for-cell-culture-tests
#2
REVIEW
Francesca E Ciraldo, Elena Boccardi, Virginia Melli, Fabian Westhauser, Aldo R Boccaccini
Bioactive glasses (BGs) are being increasingly considered for biomedical applications in bone and soft tissue replacement approaches thanks to their ability to form strong bonding with tissues. However, due to their high reactivity once in contact with water-based solutions BGs rapidly exchange ions with the surrounding environment leading in most cases to an undesired increase of the pH under static in vitro conditions (due to alkaline ion "burst release"), making difficult or even impossible to perform cell culture studies...
May 14, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29770448/eating-practices-among-low-income-overweight-obese-brazilian-mothers-a-bourdieusian-approach
#3
Priscila de Morais Sato, Mariana Dimitrov Ulian, Ramiro Fernandez Unsain, Fernanda Baeza Scagliusi
We investigated the eating practices of socially vulnerable overweight and obese Brazilian mothers, exploring the relationships between eating practices, capitals, fields and excess-weight. We conducted a qualitative study involving in-depth interviews of 21 women living in three vulnerable urban regions. Content analyses were performed and codes were used to locate actors in relation to each other in terms of 'capitals' and 'fields', forming a typology based on Bourdieu's theory with five groups. Socioeconomic conditions during childhood and liking to cook were the main characteristics related to each group's distinct eating practices...
May 16, 2018: Sociology of Health & Illness
https://www.readbyqxmd.com/read/29769523/enantioselective-reduction-of-sulfur-containing-cyclic-imines-through-biocatalysis
#4
Nadine Zumbrägel, Christian Merten, Stefan M Huber, Harald Gröger
The 3-thiazolidine ring represents an important structural motif in life sciences molecules. However, up to now reduction of 3-thiazolines as an attractive approach failed by means of nearly all chemical reduction technologies for imines. Thus, the development of an efficient general and enantioselective synthetic technology giving access to a range of such heterocycles remained a challenge. Here we present a method enabling the reduction of 3-thiazolines with high conversion and high to excellent enantioselectivity (at least 96% and up to 99% enantiomeric excess)...
May 16, 2018: Nature Communications
https://www.readbyqxmd.com/read/29767718/prediction-of-treatment-outcomes-for-neck-rejuvenation-utilizing-a-unique-classification-system-of-treatment-approach-using-a-1440-nm-side-firing-laser
#5
Gabriella A DiBernardo, Barry E DiBernardo
Background: The appearance of a youthful neck is lost with age causing excessive skin laxity, a loss of subcutaneous fat, prominence of platysmal banding, and jowling. In view of the success obtained with laser treatment for neck rejuvenation, the authors have recently taken an algorithmic approach to developing a 7-category classification system of the aging conditions throughout the anatomic spectrum of three areas: skin, fat, and muscle. This system will correlate with specific treatment options...
May 15, 2018: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29763671/searching-for-signals-of-recent-natural-selection-in-genes-of-the-innate-immune-response-ancient-dna-study
#6
Magda Lewandowska, Krystyna Jędrychowska-Dańska, Tomasz Płoszaj, Piotr Witas, Alicja Zamerska, Hanna Mańkowska-Pliszka, Henryk W Witas
The last decade has seen sharp progress in the field of human evolutionary genetics and a great amount of genetic evidence of natural selection has been provided so far. Since host-pathogen co-evolution is difficult to trace due to the polygenic nature of human susceptibility to microbial diseases, of particular interest is any signal of natural selection in response to the strong selective pressure exerted by pathogens. Analysis of ancient DNA allows for the direct insight into changes of a gene pool content over time and enables monitoring allele frequency fluctuations...
May 12, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29763563/rh-dpephos-catalyzed-alkyne-hydroacylation-using-%C3%AE-carbonyl-substituted-aldehydes-mechanistic-insight-leads-to-low-catalyst-loadings-that-enables-selective-catalysis-on-gram-scale
#7
James Barwick-Silk, Simon Hardy, Michael C Willis, Andrew S Weller
The detailed mechanism of the hydroacylation of β-amido-aldehyde, 2,2-dimethyl-3-morpholino-3-oxopropanal, with 1-octyne using [Rh(cis-κ2-P,P-DPEPhos)(acetone)2][BArF4]-based catalysts is described [ArF = (CF3)2C6H3]. A rich mechanistic landscape of competing and interconnected hydroacylation and cyclotrimerization processes is revealed. An acyl-hydride complex, arising from oxidative addition of aldehyde, is the persistent resting state during hydroacylation, and quaternary substitution at the β-amido-aldehyde strongly disfavours decarbonylation...
May 15, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29758466/structural-dynamics-and-quantum-mechanical-aspects-of-shikonin-derivatives-as-crebbp-bromodomain-inhibitors
#8
Sarmistha Mitra, Raju Dash
The Proteins involved in the chemical modification of lysine residues in histone, is currently being excessively focused as the therapeutic target for the treatment of cell related diseases like cancer. Among these proteins, the epigenetic reader, CREB-binding protein (CREBBP) bromodomain is one of the most prominent targets for effective anticancer drug design, which is responsible for the reorganization of acetylated histone lysine residues. Therefore, this study employed an integrative approach of structure based drug design, in combination with Molecular Dynamics (MD) and QM/MM study to identify as well as to describe the binding mechanism of two shikonin derivatives, acetylshikonin and propionylshikonin as inhibitors of CREBBP bromodomain...
May 4, 2018: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/29758065/the-genetic-component-of-preeclampsia-a-whole-exome-sequencing-study
#9
Anette Tarp Hansen, Jens Magnus Bernth Jensen, Anne-Mette Hvas, Mette Christiansen
Preeclampsia is a major cause of maternal and perinatal deaths. The aetiology of preeclampsia is largely unknown but a polygenetic component is assumed. To explore this hypothesis, we performed an in-depth whole-exome sequencing study in women with (cases, N = 50) and without (controls, N = 50) preeclampsia. The women were identified in an unselected cohort of 2,545 pregnant women based on data from the Danish National Patient Registry and the Medical Birth Registry. Matching DNA was obtained from a biobank containing excess blood from routine antenatal care visits...
2018: PloS One
https://www.readbyqxmd.com/read/29755496/banana21-from-gene-discovery-to-deregulated-golden-bananas
#10
REVIEW
Jean-Yves Paul, Robert Harding, Wilberforce Tushemereirwe, James Dale
Uganda is a tropical country with a population in excess of 30 million, >80% of whom live in rural areas. Bananas ( Musa spp.) are the staple food of Uganda with the East African Highland banana, a cooking banana, the primary starch source. Unfortunately, these bananas are low in pro-vitamin A (PVA) and iron and, as a result, banana-based diets are low in these micronutrients which results in very high levels of inadequate nutrition. This inadequate nutrition manifests as high levels of vitamin A deficiency, iron deficiency anemia, and stunting in children...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29751803/responding-to-excessive-alcohol-consumption-in-third-level-react-a-study-protocol
#11
Martin P Davoren, Susan Calnan, Judith Mulcahy, Emily Lynch, Ivan J Perry, Michael Byrne
BACKGROUND: Problem alcohol use is an ongoing, worldwide phenomenon of considerable concern. Throughout the past 20 years, national policies have noted the importance of students when tackling alcohol consumption. Considering alcohol is a multifaceted issue, a multi-component response is required to combat its excessive use. This protocol sets out the approach used for developing, implementing and evaluating the REACT (Responding to Excessive Alcohol Consumption in Third-level) Programme...
May 11, 2018: BMC Health Services Research
https://www.readbyqxmd.com/read/29751328/space-time-pm-2-5-mapping-in-the-severe-haze-region-of-jing-jin-ji-china-using-a-synthetic-approach
#12
Junyu He, George Christakos
Long- and short-term exposure to PM2.5 is of great concern in China due to its adverse population health effects. Characteristic of the severity of the situation in China is that in the Jing-Jin-Ji region considered in this work a total of 2725 excess deaths have been attributed to short-term PM2.5 exposure during the period January 10-31, 2013. Technically, the processing of large space-time PM2.5 datasets and the mapping of the space-time distribution of PM2.5 concentrations often constitute high-cost projects...
May 7, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29746531/the-1h-nmr-based-metabolite-profile-of-acute-alcohol-consumption-a-metabolomics-intervention-study
#13
Cindy Irwin, Mari van Reenen, Shayne Mason, Lodewyk J Mienie, Ron A Wevers, Johan A Westerhuis, Carolus J Reinecke
Metabolomics studies of disease conditions related to chronic alcohol consumption provide compelling evidence of several perturbed metabolic pathways underlying the pathophysiology of alcoholism. The objective of the present study was to utilize proton nuclear magnetic resonance (1H-NMR) spectroscopy metabolomics to study the holistic metabolic consequences of acute alcohol consumption in humans. The experimental design was a cross-over intervention study which included a number of substances to be consumed-alcohol, a nicotinamide adenine dinucleotide (NAD) supplement, and a benzoic acid-containing flavoured water vehicle...
2018: PloS One
https://www.readbyqxmd.com/read/29746281/aesthetic-unit-boundary-approach-of-large-fibroadenoma-resection
#14
Chien-Wei Wang, Robyn M Hatley, Kenneth Christian Walters, Walter L Pipkin, Diane Bairas, Jack C Yu
BACKGROUND: Fibroadenomas are the most common benign breast tumors in adolescents. Surgical excision is indicated when the tumor becomes large or symptomatic. Multiple approaches have been described. However, unsightly scars, excess skin, and breast asymmetry are common challenges after tumor resection. The aims of our study were to describe a concentric circumareolar approach combining the round-block technique and geometric principles in the management of large benign breast tumors...
April 30, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29745826/benzene-risk-assessment-does-new-evidence-on-myelodysplastic-syndrome-justify-a-new-approach
#15
Wenchao Li, A Robert Schnatter
Epidemiologic findings play an important role in benzene risk assessment, which is utilized to guide the selection of recommended benzene exposure levels to prevent adverse health effects. For decades, excess leukemia risk, especially that in the Pliofilm® cohort, has been the focus of benzene risk assessment. While more stringent benzene standards, often ≤1 ppm, have been promulgated to protect workers from developing leukemia, recent epidemiologic studies have reported elevated risk of myelodysplastic syndrome (MDS)...
May 10, 2018: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/29743970/cell-size-influences-the-reproductive-potential-and-total-lifespan-of-the-saccharomyces-cerevisiae-yeast-as-revealed-by-the-analysis-of-polyploid-strains
#16
Renata Zadrag-Tecza, Magdalena Kwolek-Mirek, Małgorzata Alabrudzińska, Adrianna Skoneczna
The total lifespan of the yeast Saccharomyces cerevisiae may be divided into two phases: the reproductive phase, during which the cell undergoes mitosis cycles to produce successive buds, and the postreproductive phase, which extends from the last division to cell death. These phases may be regulated by a common mechanism or by distinct ones. In this paper, we proposed a more comprehensive approach to reveal the mechanisms that regulate both reproductive potential and total lifespan in cell size context. Our study was based on yeast cells, whose size was determined by increased genome copy number, ranging from haploid to tetraploid...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29741496/do-the-contact-angle-and-line-tension-of-surface-attached-droplets-depend-on-the-radius-of-curvature
#17
Subir K Das, Sergei A Egorov, Peter Virnau, David Winter, Kurt Binder
Results from Monte Carlo simulations of wall-attached droplets in the three-dimensional Ising lattice gas
 model and in a symmetric binary Lennard-Jones fluid, confined by antisymmetric walls,
 are analyzed, with the aim to estimate the dependence of the contact angle $(\Theta)$
 on the droplet radius $(R)$ of curvature. Sphere-cap shape of the wall-attached droplets
 is assumed throughout. An approach, based purely on ``thermodynamic'' observables,
 e.g., chemical potential, excess density due to the droplet, etc...
May 9, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29740233/potential-of-diatom-consortium-developed-by-nutrient-enrichment-for-biodiesel-production-and-simultaneous-nutrient-removal-from-waste-water
#18
Thomas Kiran Marella, Narasimha Reddy Parine, Archana Tiwari
Because of the decreasing fossil fuel supply and increasing greenhouse gas (GHG) emissions, microalgae have been identified as a viable and sustainable feedstock for biofuel production. The major effect of the release of wastewater rich in organic compounds has led to the eutrophication of freshwater ecosystems. A combined approach of freshwater diatom cultivation with urban sewage water treatment is a promising solution for nutrient removal and biofuel production. In this study, urban wastewater from eutrophic Hussain Sagar Lake was used to cultivate a diatom algae consortium, and the effects of silica and trace metal enrichment on growth, nutrient removal, and lipid production were evaluated...
May 2018: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/29737828/light-activated-ros-responsive-nanoplatform-co-delivering-apatinib-and-doxorubicin-for-enhanced-chemo-photodynamic-therapy-of-multidrug-resistant-tumors
#19
Xiao Wei, Lingqiao Liu, Xing Guo, Yi Wang, Jingya Zhao, Shaobing Zhou
Cancer chemotherapy faces the problem of the multidrug resistance (MDR) of tumor cells, which is a puzzling issue that leads to treatment failure. To address it, an innovative approach is proposed to construct a light-activated reactive oxygen species (ROS)-responsive nanoplatform based on a protoporphyrin (PpIX)-conjugated and dual chemotherapeutics-loaded polymer micelle. This system combines chemotherapy and photodynamic therapy (PDT) to defeat the MDR of tumors. Such an intelligent nanocarrier can prolong the blood circulation due to the negatively charged polysaccharide component of chondroitin sulfate (CS) and subsequently being selectively internalized by DOX-resistant human breast cancer MCF-7 cells (MCF-7/ADR)...
May 8, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29734007/collagenase-nanocapsules-an-approach-to-fibrosis-treatment
#20
María Rocío Villegas, Alejandro Baeza, Alicia Usategui, Pablo L Ortiz-Romero, José L Pablos, María Vallet-Regí
Fibrosis is a common lesion in different pathologic diseases and defined by the excessive accumulation of collagen. Different approaches have been used to treat different conditions characterized by fibrosis. The FDA and EMA approved the use of collagenase to treat palmar fibromatosis (Dupuytren's contracture). The EMA approved additionally its use in severe Peyronie's disease, but it has been used off label in other conditions.[1,2] The approved treatment includes up to three (in palmar fibromatosis) or up to eight (in penile fibromatosis) injections followed by finger extension or penile modeling procedures, typically causing severe pain...
May 4, 2018: Acta Biomaterialia
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