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https://www.readbyqxmd.com/read/28823078/sesquiterpenes-from-fruits-of-torilis-japonica-with-inhibitory-activity-on-melanin-synthesis-in-b16-cells
#1
Da Hye Song, Yang Hee Jo, Jong Hoon Ahn, Seon Beom Kim, Cheong-Yong Yun, Youngsoo Kim, Bang Yeon Hwang, Mi Kyeong Lee
Melanin, a dark macromolecular pigment, protects skin from harmful damage. However, abnormal accumulation is responsible for hyperpigmentation disorders. Melanogenesis inhibitors have therefore become important constituents in cosmetic products for depigmentation. Torilis japonica Decandolle (Umbelliferae) is a biennial plant which is distributed in East Asia. Fruits of this plant have been used for the treatment of skin disease and inflammation. In our previous study, torilin, a major sesquiterpene of T. japonica, showed an inhibitory effect on melanin production in α-melanocyte stimulating hormone (α-MSH)-activated B16 melanoma cells...
August 19, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28820248/modulating-wettability-of-layered-materials-by-controlling-ligand-polar-headgroup-dynamics
#2
Terry A Villarreal, Shane R Russell, Jae Jin Bang, Justin K Patterson, Shelley A Claridge
Integrating functionalized 2D materials into multilayer device architectures increasingly requires understanding the behavior of noncovalently adsorbed ligands during solution processing. Here, we demonstrate that the headgroup dynamics of polymerized monolayers of functional alkanes can be controlled to modify surface wetting and environmental interactions. We find that headgroup dynamics are sensitive to the position of the polymerizable diyne group; thus, the polymerization process, typically used to stabilize the noncovalent monolayer, can also be used to selectively destabilize chain-chain interactions near the headgroups, making the headgroups more solvent-accessible and increasing surface hydrophilicity...
August 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28819468/paediatric-fractures-in-a-sub-saharan-tertiary-care-center-a-cohort-analysis-of-demographic-characteristics-clinical-presentation-therapeutic-patterns-and-outcomes
#3
Marc Leroy Guifo, Joel Noutakdie Tochie, Blondel Nana Oumarou, Jean Roger Moulion Tapouh, Aristide Guy Bang, Aurelien Ndoumbe, Bonaventure Jemea, Maurice Aurelien Sosso
INTRODUCTION: Paediatric fractures are often of good prognosis due to auto-correction of insufficient fracture reduction by bone remodeling. In sub-Saharan Africa, traditional healers are renowned for managing fractures and there is a neglect for specialized pediatric fracture care. We aimed to determine the demographic characteristics, clinical presentation, treatment patterns and outcomes of paediatric fractures in a tertiary health care centre in Yaoundé. METHODS: We conducted a prospective cohort study of all consenting consecutive cases of fractures in patients younger than 16 years managed between January 2011 and June 2015 at the University Teaching Hospital, Cameroon...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28819232/ensemble-of-thermostatically-controlled-loads-statistical-physics-approach
#4
Michael Chertkov, Vladimir Chernyak
Thermostatically controlled loads, e.g., air conditioners and heaters, are by far the most widespread consumers of electricity. Normally the devices are calibrated to provide the so-called bang-bang control - changing from on to off, and vice versa, depending on temperature. We considered aggregation of a large group of similar devices into a statistical ensemble, where the devices operate following the same dynamics, subject to stochastic perturbations and randomized, Poisson on/off switching policy. Using theoretical and computational tools of statistical physics, we analyzed how the ensemble relaxes to a stationary distribution and established a relationship between the relaxation and the statistics of the probability flux associated with devices' cycling in the mixed (discrete, switch on/off, and continuous temperature) phase space...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28817815/arterial-and-venous-thrombosis-in-haemophilia-patients-experiences-from-a-danish-haemophilia-centre
#5
Julie Brogaard Larsen, Karen Bang Jin Nielsen, Lone Hvitfeldt Poulsen, Mustafa Vakur Bor
No abstract text is available yet for this article.
August 18, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/28817603/expression-of-the-mhc-class-ii-in-triple-negative-breast-cancer-is-associated-with-tumor-infiltrating-lymphocytes-and-interferon-signaling
#6
In Ah Park, Seong-Hye Hwang, In Hye Song, Sun-Hee Heo, Young-Ae Kim, Won Seon Bang, Hye Seon Park, Miseon Lee, Gyungyub Gong, Hee Jin Lee
Tumor-infiltrating lymphocytes (TILs) have been known for their strong prognostic and predictive significance in triple-negative breast cancer (TNBC). Several mechanisms for TIL influx in TNBC have been elucidated. Major histocompatibility complex class II (MHC-II) is an essential component of the adaptive immune system and is generally restricted to the surface of antigen-presenting cells. However, it has been reported that interferon-gamma signaling may induce MHC-II in almost all cell types, including those derived from cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28817567/accounting-for-biotic-spatial-variability-in-fields-case-of-resistance-screening-against-sunflower-verticillium-wilt
#7
Hélène Missonnier, Alban Jacques, JiSu Bang, Jean Daydé, Virginie Mirleau-Thebaud
In breeding for disease resistance, the magnitude of the genetic response is difficult to appreciate because of environmental stresses that interact with the plant genotype. We discuss herein the fundamental problems in breeding for disease resistance with the aim being to better understand the interactions between plant, pathogen, and spatial patterns. The goal of this study is to fine tune breeding decisions by incorporating spatial patterns of such biotic factors into the definition of disease-occurrence probability...
2017: PloS One
https://www.readbyqxmd.com/read/28817421/association-of-stop-bang-questionnaire-as-a-screening-tool-for-sleep-apnea-and-postoperative-complications-a-systematic-review-and-bayesian-meta-analysis-of-prospective-and-retrospective-cohort-studies
#8
Mahesh Nagappa, Jayadeep Patra, Jean Wong, Yamini Subramani, Mandeep Singh, George Ho, David T Wong, Frances Chung
BACKGROUND: The risk of postoperative complications increases with undiagnosed obstructive sleep apnea (OSA). The high-risk OSA (HR-OSA) patients can be easily identified using the STOP-Bang screening tool. The aim of this systematic review and meta-analysis is to determine the association of postoperative complications in patients screened as HR-OSA versus low-risk OSA (LR-OSA). METHODS: The following data bases were searched from January 1, 2008, to October 31, 2016, to identify the eligible articles: Cochrane Central Register of Controlled Trials, MEDLINE, PubMed, Cochrane Databases of Systematic Reviews, Medline-in-Process & other nonindexed citations, Google Scholar, Embase, Web of Sciences and Scopus...
August 11, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28817281/linking-solution-structures-and-energetics-thorium-nitrate-complexes
#9
Suntharalingam Skanthakumar, Geng Bang Jin, Jian Lin, Valérie Vallet, Lynda Soderholm
Seeking predictive insights into how metal-ion speciation impacts solution chemistry as well as the composition and structure of solid-precipitates, thorium correlations, with both solvent and other solute ions, were quantitatively probed in a series of acidic, nitrate/perchlorate solutions held at constant ionic strength. Difference pair-distribution functions (dPDF), obtained from high-energy x-ray scattering (HEXS) data, provide unprecedented structural information on the number of Th ligating ions in solution and how they change with increasing nitrate concentration...
August 17, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28816914/congenital-hypotonia-in-toddlerhood
#10
Naomi Steiner, Alcy Torres, Arathi Reddy, Marilyn Augustyn
David is a 22-month-old boy who is new to your practice. He recently moved from a rural area in the Midwest. His father is in the United States Air Force, and his mother works as a full-time homemaker. Their household includes 5 older siblings. The family moves every year because of the father's Air Force placement.David was born full-term in Virginia, with no reported pregnancy complications and no alcohol, tobacco, or drug exposure. He was delivered vaginally, with Apgar scores of 7 and 9, respectively and no respiratory issues...
August 9, 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28814441/left-of-bang-interventions-in-trauma-ethical-implications-for-military-medical-prophylaxis
#11
Neil Eisenstein, David Naumann, Daniel Burns, Sarah Stapley, Heather Draper
Advances in medical capability should be accompanied by discussion of their ethical implications. In the military medical context there is a growing interest in developing prophylactic interventions that will mitigate the effects of trauma and improve survival. The ethics of this novel capability are currently unexplored. This paper describes the concept of trauma prophylaxis (Left Of Bang Interventions in Trauma) and outlines some of the ethical issues that need to be considered, including within concept development, research and implementation...
August 16, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28814111/ligand-efficiency-metrics-in-drug-discovery-the-pros-and-cons-from-a-practical-perspective
#12
Maria Maddalena Cavalluzzi, Giuseppe Felice Mangiatordi, Orazio Nicolotti, Giovanni Lentini
Ligand efficiency metrics are almost universally accepted as a valuable indicator of compound quality and an aid to reduce attrition. Areas covered: In this review, the authors describe ligand efficiency metrics giving a balanced overview on their merits and points of weakness in order to enable the readers to gain an informed opinion. Relevant theoretical breakthroughs and drug-like properties are also illustrated. Several recent exemplary case studies are discussed in order to illustrate the main fields of application of ligand efficiency metrics...
August 17, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28811562/loop-quantum-cosmology-and-singularities
#13
Ward Struyve
Loop quantum gravity is believed to eliminate singularities such as the big bang and big crunch singularity. This belief is based on studies of so-called loop quantum cosmology which concerns symmetry-reduced models of quantum gravity. In this paper, the problem of singularities is analysed in the context of the Bohmian formulation of loop quantum cosmology. In this formulation there is an actual metric in addition to the wave function, which evolves stochastically (rather than deterministically as the case of the particle evolution in non-relativistic Bohmian mechanics)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810937/tweets-gangs-and-guns-a-snapshot-of-gang-communications-in-detroit
#14
Desmond Patton, Sadiq Patel, Jun Sung Hong, Megan Ranney, Marie Crandall, Lyle Dungy
The aim of this study is to determine the frequency of violent and criminal Twitter communications among gang-affiliated individuals in Detroit, Michigan. We analyzed 8.5 million Detroit gang members' tweets from January 2013 to March 2014 to assess whether they contained Internet banging-related keywords. We found that 4.7% of gangaffiliated user tweets consisted of terms related to violence and crime. Violence and crime-related communications fell into 4 main categories: (a) beefing (267,221 tweets), (b) grief (79,971 tweets), (c) guns (3,551 tweets), and (d) substance use and distribution (47,638 tweets)...
August 15, 2017: Violence and Victims
https://www.readbyqxmd.com/read/28810915/quality-of-life-and-correlation-with-clinical-and-radiographic-variables-in-patients-with-ankylosing-spondylitis-a-retrospective-case-series-study
#15
Ji-Chen Huang, Bang-Ping Qian, Yong Qiu, Bin Wang, Yang Yu, Ze-Zhang Zhu, Jun Hu, Zhe Qu
BACKGROUND: Previously, many studies have evaluated quality of life (QoL) in patients with ankylosing spondylitis (AS), however, none of them specifically investigated the correlation between pain-related disability measured by Oswestry Disability Index (ODI) and QoL in AS patients. In addition, the correlation between global kyphosis (GK) in lateral plain radiographs and QoL in AS patients remains unclear up to now. Therefore, this study aimed to evaluate QoL and correlation with clinical and radiographic variables in AS patients, especially to figure out the relationship about the pain-specific disability measured by ODI, GK and QoL...
August 15, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28810815/social-selection-in-cohort-studies-and-later-representation-of-childhood-psychiatric-diagnoses-the-danish-national-birth-cohort
#16
Kathrine Bang Madsen, Lena Hohwü, Jin Liang Zhu, Jørn Olsen, Carsten Obel
AIM: This study aimed to estimate the relative representation of childhood psychiatric diagnoses and use of psychotropic medication in the Danish National Birth Cohort (DNBC) compared to the general population. METHODS: The general population was identified as all childbirths in Denmark during 1998-2002 ( N=344,160). Linking the DNBC ( N=91,442) and the general population to the Danish national health registries, all children were followed until they received an ICD-10 psychiatric diagnosis, had a prescription of psychotropic medication or to the end of follow-up in 2013...
August 1, 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/28810251/a-prospective-randomized-open-label-blinded-endpoint-study-exploring-platelet-response-to-half-dose-prasugrel-and-ticagrelor-in-patients-with-the-acute-coronary-syndrome-hope-tailor-study
#17
Cai De Jin, Moo Hyun Kim, Junghee Bang, Victor Serebruany
BACKGROUND: The optimal dosing of novel oral P2Y12 receptor platelet inhibitors such as prasugrel or ticagrelor is unclear and especially challenging in East Asians. We hypothesize that half-dose prasugrel and ticagrelor may be sufficient for long-term maintenance management in Korean patients with the acute coronary syndrome (ACS) compared with conventional dosages. DESIGN: HOPE-TAILOR (Half Dose of Prasugrel and Ticagrelor in Platelet Response after Acute Coronary Syndromes) is a prospective, randomized, open-label, blinded, endpoint (PROBE) single-center, clinical trial...
August 16, 2017: Cardiology
https://www.readbyqxmd.com/read/28808270/a-low-permeability-microfluidic-blood-brain-barrier-platform-with-direct-contact-between-perfusable-vascular-network-and-astrocytes
#18
Seokyoung Bang, Seung-Ryeol Lee, Jihoon Ko, Kyungmin Son, Dongha Tahk, Jungho Ahn, Changkyun Im, Noo Li Jeon
A novel three dimensional blood brain barrier (BBB) platform was developed by independently supplying different types of media to separate cell types within a single device. One channel (vascular channel, VC) is connected to the inner lumen of the vascular network while the other supplies media to the neural cells (neural channel, NC). Compared to co-cultures supplied with only one type of medium (or 1:1 mixture), best barrier properties and viability were obtained with culturing HUVECs with endothelial growth medium (EGM) and neural cells with neurobasal medium supplemented with fetal bovine serum (NBMFBS) independently...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28806778/serum-resistin-as-an-independent-marker-of-aortic-stiffness-in-patients-with-coronary-artery-disease
#19
Ji-Hung Wang, Chung-Jen Lee, Chiu-Fen Yang, Yu-Chih Chen, Bang-Gee Hsu
BACKGROUND: Subjects with higher carotid-femoral pulse wave velocity (cfPWV) will be at an increased risk for cardiovascular (CV) events in future. Resistin is an inflammatory mediator and a biomarker of CV diseases. We evaluated the association between serum resistin and aortic stiffness in patients with coronary artery disease (CAD). METHODS: A total of 104 patients with CAD were enrolled in this study. cfPWV was measured using the SphygmoCor system. Patients with cfPWV >10 m/s were defined as the high aortic stiffness group...
2017: PloS One
https://www.readbyqxmd.com/read/28805750/inositol-derivatives-and-phenolic-compounds-from-the-roots-of-taraxacum-coreanum
#20
Eun Jin Mo, Jong Hoon Ahn, Yang Hee Jo, Seon Beom Kim, Bang Yeon Hwang, Mi Kyeong Lee
In this study, the characterization of chemical constituents and biological activity of the roots of Taraxacum coreanum (Asteraceae) was attempted. Phytochemical investigation of the roots of T. coreanum led to the isolation of two new inositol derivatives, taraxinositols A (1) and B (2), and a new phenolic compound, taraxinol (16), together with twenty known compounds including four inositol derivatives, neo-inositol-1,4-bis (4-hydroxybenzeneacetate) (3), chiro-inositol-1,5-bis(4- hydroxybenzeneacetate) (4), chiro-inositol-2,3-bis (4-hydroxybenzeneacetate) (5) and chiro-inositol- 1,2,3-tris (4-hydroxybenzeneacetate) (6), nine phenolic compounds: p-hydroxybenzaldehyde (7), vanillin (8), syringaldehyde (9), vanillic acid (10), 4-methoxyphenylacetic acid (11), 4-hydroxy- phenylacetic acid methyl ester (12), optivanin (13), isoferulic acid (14) and dihydroconiferyl alcohol (15), four coumarins: nodakenetin (17), decursinol (18), prangol (19) and isobyakangelicin (20), and three lignans: syringaresinol-4'-O-β-d-glucoside (21), syringaresinol (22), and pinoresinol (23)...
August 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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