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https://www.readbyqxmd.com/read/29040960/a-novel-s-sulfhydrated-human-serum-albumin-preparation-suppresses-melanin-synthesis
#1
Mayumi Ikeda, Yu Ishima, Ryo Kinoshita, Victor T G Chuang, Nanami Tasaka, Nana Matsuo, Hiroshi Watanabe, Taro Shimizu, Tatsuhiro Ishida, Masaki Otagiri, Toru Maruyama
Products of ultraviolet (UV) irradiation such as reactive oxygen species (ROS) and nitric oxide (NO) stimulate melanin synthesis. Reactive sulfur species (RSS) have been shown to have strong ROS and NO scavenging effects. However, the instability and low retention of RSS limit their use as inhibitors of melanin synthesis. The free thiol at Cys34 on human serum albumin (HSA) is highly stable, has a long retention and possess a high reactivity for RSS. We report herein on the development of an HSA based RSS delivery system...
October 11, 2017: Redox Biology
https://www.readbyqxmd.com/read/29040872/highly-elevated-plasma-level-of-von-willebrand-factor-accelerates-the-formation-of-platelet-thrombus-under-high-shear-stress-in-plasma-with-deficient-adamts13-activity
#2
Hideo Yagi, Naoko Yamaguchi, Yasuaki Shida, Mitsuhiko Sugimoto, Kazuo Tubaki, Yoshihiro Fujimura, Masanori Matsumoto
Upshaw-Schulman syndrome (USS) is a thrombo-hemorrhagic disease caused by congenital deficiency of ADAMTS13 due to ADAMTS13 gene mutations. USS is characterized by repeated episodes of thrombocytopenia and microangiopathic hemolytic anemia that respond dramatically to infusions of fresh frozen plasma. There are two phenotypic expressions of USS: one is the early-onset type and the other, the late-onset type, is asymptomatic during childhood with the first bout of thrombotic thrombocytopenic purpura (TTP) developing after adolescence or during adulthood...
October 10, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/29040658/fire-does-not-strongly-affect-genetic-diversity-or-structure-of-a-common-treefrog-in-the-endangered-florida-scrub
#3
J M Robertson, S W Fitzpatrick, B B Rothermel, L M Chan
Fire regimes influence natural populations of organisms in diverse ways, via direct effects on population dynamics as well as indirect effects on habitat and ecosystem processes. Although many amphibian species have evolved to persist in fire-dependent ecosystems, the effects of fire on the genetic diversity of amphibian populations remain relatively unexplored. We examined how different aspects of fire history relate to population genetic diversity and structure of an abundant anuran, Hyla femoralis, in a large, intact area of Florida scrub containing hundreds of seasonally inundated ponds...
October 11, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29040625/rise-a-database-of-rna-interactome-from-sequencing-experiments
#4
Jing Gong, Di Shao, Kui Xu, Zhipeng Lu, Zhi John Lu, Yucheng T Yang, Qiangfeng Cliff Zhang
We present RISE (http://rise.zhanglab.net), a database of RNA Interactome from Sequencing Experiments. RNA-RNA interactions (RRIs) are essential for RNA regulation and function. RISE provides a comprehensive collection of RRIs that mainly come from recent transcriptome-wide sequencing-based experiments like PARIS, SPLASH, LIGR-seq, and MARIO, as well as targeted studies like RIA-seq, RAP-RNA and CLASH. It also includes interactions aggregated from other primary databases and publications. The RISE database currently contains 328,811 RNA-RNA interactions mainly in human, mouse and yeast...
October 4, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29040446/familial-aggregation-and-heritability-of-loa-loa-microfilaremia
#5
Serge Eyebe, Audrey Sabbagh, Sébastien D Pion, Hugues C Nana-Djeunga, Joseph Kamgno, Michel Boussinesq, Cédric B Chesnais
Background: For a given prevalence of Loa loa microfilaremia, the proportion of people with high densities varies significantly between communities. We hypothesized that this variation is related to the existence of familial clusters of hypermicrofilaremic individuals that would be the consequence of a genetic predisposition to present high L. loa microfilarial densities. Methods: A familial study was performed in 10 villages in the Okola Health District of Cameroon...
October 10, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29040332/the-developmental-programme-for-genesis-of-the-entire-kidney-is-recapitulated-in-wilms-tumour
#6
Ryuji Fukuzawa, Matthew R Anaka, Ian M Morison, Anthony E Reeve
Wilms tumour (WT) is an embryonal tumour that recapitulates kidney development. The normal kidney is formed from two distinct embryological origins: the metanephric mesenchyme (MM) and the ureteric bud (UB). It is generally accepted that WT arises from precursor cells in the MM; however whether UB-equivalent structures participate in tumorigenesis is uncertain. To address the question of the involvement of UB, we assessed 55 Wilms tumours for the molecular features of MM and UB using gene expression profiling, immunohistochemsitry and immunofluorescence...
2017: PloS One
https://www.readbyqxmd.com/read/29040183/the-prognostic-impact-of-the-pathological-response-to-neoadjuvant-dose-dense-therapy-for-ovarian-carcinoma
#7
Takahiro Ebata, Mayu Yunokawa, Hiroshi Yoshida, Seiko Bun, Tatsunori Shimoi, Akihiko Shimomura, Makoto Kodaira, Kan Yonemori, Chikako Shimizu, Yasuhiro Fujiwara, Tomoyasu Kato, Kenji Tamura
OBJECTIVE: The aim of this study was to assess the use of the pathological response to neoadjuvant chemotherapy (NAC) for predicting disease prognosis in patients with advanced ovarian cancer who received neoadjuvant dose-dense weekly paclitaxel and carboplatin (dd-TC) therapy. METHODS: We retrospectively investigated patients with advanced epithelial ovarian, tubal, or peritoneal carcinoma treated at our hospital from July 2004 to October 2014. Patients received dd-TC therapy as NAC followed by interval debulking surgery (IDS)...
October 17, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29040044/step-up-be-counted-strategies-for-data-collection
#8
Kathleen H Johnson, Erin D Maughan, Martha Dewey Bergren, Linda C Wolfe, Jessica Gerdes
Step Up & Be Counted! (Step Up!) is an innovative project to collect nationally standardized data from the daily documentation of school nurses throughout the United States. Step Up! provides the standardization needed to promote an "apples to apples" analysis of school health resources, interventions, and outcomes across the United States. While some states have collected data for decades and have an effective infrastructure in place, other states are new to data collection and are creating processes to support data collection...
November 2017: NASN School Nurse
https://www.readbyqxmd.com/read/29040005/the-shape-of-vesicle-containing-organelles-is-critical-for-their-functions-in-vesicle-endocytosis
#9
Chelsea M Winters, Ly Q Hong-Brown, Hui-Ling Chiang
Exosomes are small vesicles secreted by a variety of cell types under physiological and pathological conditions. When Saccharomyces cerevisiae are grown in low glucose, small vesicles carrying more than 300 proteins with diverse biological functions are secreted. Upon glucose addition, secreted vesicles are endocytosed that requires cup-shaped organelles containing the major eisosome protein Pil1p at the rims. We aim to identify genes that regulate the function of cup-shaped organelles in vesicle endocytosis...
October 17, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/29039926/zebrafish-a-visual-model-to-evaluate-the-biofate-of-transferrin-receptor-targeted-7peptide-decorated-coumarin-6-micelles
#10
Ye Li, Xiaoning Song, Xiang Yi, Ruibing Wang, Simon Ming-Yuen Lee, Xueqing Wang, Ying Zheng
In the present study, the zebrafish was explored as an in vivo model to assess the biofate of transferrin receptor (TfR)-targeted coumarin 6 (C6) micelles across various biological barriers. Three 7peptide (7pep)-decorated poly-(ethylene glycol)-block-poly (ε-caprolactone) (PEG-b-PCL) micelles loaded with fluorescence coumarin 6 (7pep-M-C6) with different ligand densities were constructed with particle sizes between 30-40 nm. Whole-mount immunostaining revealed that the expression level of TfR in the retina, brain and intestine increased along with development stage...
October 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29039911/halide-re-shelled-quantum-dot-inks-for-infrared-photovoltaics
#11
James Z Fan, Mengxia Liu, Oleksandr Voznyy, Bin Sun, Larissa Levina, Rafael Quintero-Bermudez, Min Liu, Olivier Ouellette, F Pelayo Garcia de Arquer, Sjoerd Hoogland, Edward H Sargent
Colloidal quantum dots are promising materials for tandem solar cells that complement to silicon and perovskites. These devices are fabricated from solution phase; however, existing methods for making infrared-bandgap CQD inks suffer agglomeration and fusion during solution exchange. Here we develop a ligand exchange that provides robust surface protection and thereby avoids aggregation. First, we exchanged long oleic acid ligands to a mixed system comprised of medium-chain ammonium and anionic chloride ligands; then, we re-shelled the surface using short halides and pseudohalide ligands that enabled transfer to a polar solvent...
October 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29036999/-the-contamination-and-dietary-exposure-analysis-for-seven-mycotoxins-in-the-fifth-chinese-total-diet-study
#12
N N Qiu, B Lyu, S Zhou, Y F Zhao, Y N Wu
Objective: To investigate the contamination levels and dietary intakes of seven mycotoxins in Chinese diets. Methods: In Chinese Total Diet Study, food aggregation was based on the food consumption of local residents, thus generating the sampling scheme. According to the sampling scheme, the food items were sampled at three survey points in each province and then mixed in the same proportion. The mixed dietary samples were prepared after being cooked and processed. The samples comprised of 13 categories of food: cereals, beans, potatoes, meat, eggs, aquatic products, milk, vegetables, fruits, saccharides, beverages and drinking water, alcohol, and condiments...
October 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29036975/-predictive-value-of-serial-platelet-function-testing-on-outcome-in-patients-undergoing-complex-percutaneous-coronary-intervention
#13
M M Li, Q Li, X J Ren, X P Yu, J Q He, Y C Gao, C Y Wu, Y W Luo, Y C Zhang, F Chen, X L Zhang
Objective: To observe the predictive value of serial platelet function testing (PFT) on outcome in patients undergoing complex percutaneous coronary intervention (PCI). Methods: Six hundred and two consecutive patients undergoing complex PCI in Anzhen hospital were enrolled during October 2011 to June 2012.Adenosine diphosphate(ADP)-induced platelet aggregation was measured by light transmission aggregometry on the first, sixth and twelfth month after PCI and the mean value was calculated.The cut-off value of high on-treatment platelet reactivity (HTPR) was defined as 40%...
September 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29036933/school-leadership-and-cyberbullying-a-multilevel-analysis
#14
Sara B Låftman, Viveca Östberg, Bitte Modin
Cyberbullying is a relatively new form of bullying, with both similarities and differences to traditional bullying. While earlier research has examined associations between school-contextual characteristics and traditional bullying, fewer studies have focused on the links to students' involvement in cyberbullying behavior. The aim of the present study is to assess whether school-contextual conditions in terms of teachers' ratings of the school leadership are associated with the occurrence of cyberbullying victimization and perpetration among students...
October 15, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29036903/resveratrol-and-amyloid-beta-mechanistic-insights
#15
REVIEW
Yongming Jia, Na Wang, Xuewei Liu
The amyloid-beta (Aβ) hypothesis that dyshomeostasis between Aβ production and clearance is a very early, key molecular factor in the etiology of Alzheimer's disease (AD) has been proposed and examined in the AD research field. Scientists have focused on seeking natural products or drugs to influence the dynamic equilibrium of Aβ, targeting production and clearance of Aβ. There is emerging evidence that resveratrol (Res), a naturally occurring polyphenol mainly found in grapes and red wine, acts on AD in numerous in vivo and in vitro models...
October 14, 2017: Nutrients
https://www.readbyqxmd.com/read/29036837/simvastatin-as-a-potential-disease-modifying-therapy-for-patients-with-parkinson-s-disease-rationale-for%C3%A2-clinical-trial-and-current-progress
#16
Camille B Carroll, Richard K H Wyse
Many now believe the holy grail for the next stage of therapeutic advance surrounds the development of disease-modifying approaches aimed at intercepting the year-on-year neurodegenerative decline experienced by most patients with Parkinson's disease (PD). Based on recommendations of an international committee of experts who are currently bringing multiple, potentially disease-modifying, PD therapeutics into long-term neuroprotective PD trials, a clinical trial involving 198 patients is underway to determine whether Simvastatin provides protection against chronic neurodegeneration...
October 13, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/29036796/intestinal-ischemia-reperfusion-leads-to-early-systemic-micro-rheological-and-multiorgan-microcirculatory-alterations-in-the-rat
#17
Anita Mester, Zsuzsanna Magyar, Viktoria Sogor, Bence Tanczos, Yoav Stark, Konstantin Cherniavsky, Laszlo Bidiga, Katalin Peto, Norbert Nemeth
BACKGROUND: Intestinal ischemia-reperfusion (I/R) is a potentially life-threatening situation and its pathomechanism is not fully understood yet. OBJECTIVE: To investigate the early micro-rheological, microcirculatory and morphological consequences of intestinal I/R in a rat model. METHODS: CD rats were anesthetized and subjected to Control (n = 7) or I/R (n = 7) groups. Left femoral artery cannulation and median laparotomy were performed...
October 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29036723/converting-from-transdermal-to-buccal-formulations-of-buprenorphine-a-pharmacokinetic-meta-model-simulation-in-healthy-volunteers
#18
Tony Priestley, Arvind K Chappa, Diane R Mould, Richard N Upton, Neil Shusterman, Steven Passik, Vicente J Tormo, Stephen Camper
OBJECTIVE:  To develop a model to predict buprenorphine plasma concentrations during transition from transdermal to buccal administration. DESIGN:  Population pharmacokinetic model-based meta-analysis of published data. METHODS:  A model-based meta-analysis of available buprenorphine pharmacokinetic data in healthy adults, extracted as aggregate (mean) data from published literature, was performed to explore potential conversion from transdermal to buccal buprenorphine...
September 29, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29036441/the-role-of-the-er-stress-response-protein-perk-in-rhodopsin-retinitis-pigmentosa
#19
Dimitra Athanasiou, Monica Aguila, James Bellingham, Naheed Kanuga, Peter Adamson, Michael E Cheetham
Mutations in rhodopsin, the light sensitive protein of rod cells, are the most common cause of dominant retinitis pigmentosa (RP), a type of inherited blindness caused by the dysfunction and death of photoreceptor cells. The P23H mutation, the most frequent single cause of RP in the USA, causes rhodopsin misfolding and induction of the unfolded protein response (UPR), an adaptive ER stress response and signalling network that aims to enhance the folding and degradation of misfolded proteins to restore proteostasis...
September 27, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29036405/fold-a-method-to-optimize-power-in-meta-analysis-of-genetic-association-studies-with-overlapping-subjects
#20
Emma E Kim, Seunghoon Lee, Cue Hyunkyu Lee, Hyunjung Oh, Kyuyoung Song, Buhm Han
Motivation: In genetic association studies, meta-analyses are widely used to increase the statistical power by aggregating information from multiple studies. In meta-analyses, participating studies often share the same individuals due to the shared use of publicly available control data or accidental recruiting of the same subjects. As such overlapping can inflate false positive rate, overlapping subjects are traditionally split in the studies prior to meta-analysis, which requires access to genotype data and is not always possible...
July 20, 2017: Bioinformatics
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