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https://www.readbyqxmd.com/read/29331591/brochosomins-and-other-novel-proteins-from-brochosomes-of-leafhoppers-insecta-hemiptera-cicadellidae
#1
Roman Rakitov, Alexander A Moysa, Arthur T Kopylov, Sergei A Moshkovskii, Ralph S Peters, Karen Meusemann, Bernhard Misof, Christopher H Dietrich, Kevin P Johnson, Lars Podsiadlowski, Kimberly K O Walden
Brochosomes (BS) are secretory granules resembling buckyballs, produced intracellularly in specialized glandular segments of the Malpighian tubules and forming superhydrophobic coatings on the integuments of leafhoppers (Hemiptera, Cicadellidae). Their composition is poorly known. Using a combination of SDS-PAGE, LC-MS/MS, next-generation sequencing (RNAseq) and bioinformatics we demonstrate that the major structural component of BS of the leafhopper Graphocephala fennahi Young is a novel family of 21-40-kDa secretory proteins, referred to herein as brochosomins (BSM), apparently cross-linked by disulfide bonds...
January 10, 2018: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29330744/c-fos-downregulation-positively-regulates-epha5-expression-in-a-congenital-hypothyroidism-rat-model
#2
Honghua Song, Yuqin Zheng, Fuying Cai, Yanyan Ma, Jingyue Yang, Youjia Wu
The EphA5 receptor is well established as an axon guidance molecule during neural system development and plays an important role in dendritic spine formation and synaptogenesis. Our previous study has showed that EphA5 is decreased in the developing brain of congenital hypothyroidism (CH) and the EphA5 promoter methylation modification participates in its decrease. c-Fos, a well-kown transcription factor, has been considered in association with brain development. Bioinformatics analysis showed that the EphA5 promoter region contained five putative c-fos binding sites...
January 12, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29330451/tracheophyte-genomes-keep-track-of-the-deep-evolution-of-the-caulimoviridae
#3
Seydina Issa Diop, Andrew D W Geering, Françoise Alfama-Depauw, Mikaël Loaec, Pierre-Yves Teycheney, Florian Maumus
Endogenous viral elements (EVEs) are viral sequences that are integrated in the nuclear genomes of their hosts and are signatures of viral infections that may have occurred millions of years ago. The study of EVEs, coined paleovirology, provides important insights into virus evolution. The Caulimoviridae is the most common group of EVEs in plants, although their presence has often been overlooked in plant genome studies. We have refined methods for the identification of caulimovirid EVEs and interrogated the genomes of a broad diversity of plant taxa, from algae to advanced flowering plants...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29329830/theoretical-research-in-structure-characteristics-of-different-inhibitors-and-differences-of-binding-modes-with-cbp-bromodomain
#4
Xue-Song Wang, Qing-Chuan Zheng
The CBP (CREB (cAMP responsive element binding protein) binding protein) bromodomain (BRD) could recognize and bind with acetyl K382 of human tumor suppressor protein p53 which the mutation of encoding gene might cause human cancers. CBP-BRD serves as a promising drug target for several disease pathways and a series of effective drug have been discovered. In this study, molecular dynamics (MD) simulations and molecular mechanics generalized born surface area (MM-GB/SA) approaches were performed to investigate the different binding modes between five inhibitors with CBP-BRD...
December 26, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29328363/support-vector-machine-classifier-for-prediction-of-the-metastasis-of-colorectal-cancer
#5
Jiajun Zhi, Jiwei Sun, Zhongchuan Wang, Wenjun Ding
Colorectal cancer (CRC) is one of the most common cancers and a major cause of mortality. The present study aimed to identify potential biomarkers for CRC metastasis and uncover the mechanisms underlying the etiology of the disease. The five datasets GSE68468, GSE62321, GSE22834, GSE14297 and GSE6988 were utilized in the study, all of which contained metastatic and non-metastatic CRC samples. Among them, three datasets were integrated via meta-analysis to identify the differentially expressed genes (DEGs) between the two types of samples...
January 2, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29327141/theoretical-study-on-benzoheterocycle-based-energetic-materials-effect-of-heterocyclic-fused-conjugation-hydrogen-bond-and-substitutional-group-on-the-detonation-performance
#6
Cheng Shen, Pengcheng Wang, Ming Lu
In this paper, four series of benzoheterocycle based energetic materials (EMs) have been designed to plan out a strategy to improve the density and safety of EMs, such as combining the insensitive group with aminobenzene ring and the high energetic nitramine explosives, benzo-heterocycle mother ring, designing multi-nitrogen heterocycles with a conjugated system containing N-N and C-N high energy bonds, and hydrogen bonding. Their optimized structure and detonation properties were first calculated and discussed using DFT methods...
January 11, 2018: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/29325102/elevated-proportions-of-deleterious-genetic-variation-in-domestic-animals-and-plants
#7
Takashi Makino, Carl-Johan Rubin, Miguel Carneiro, Erik Axelsson, Leif Andersson, Matthew T Webster
A fraction of genetic variants segregating in any population are deleterious, which negatively impacts individual fitness. The domestication of animals and plants is associated with population bottlenecks and artificial selection, which are predicted to increase the proportion of deleterious variants. However, the extent to which this is a general feature of domestic species is unclear. Here we examine the effects of domestication on the prevalence of deleterious variation using pooled whole-genome resequencing data from five domestic animal species (dog, pig, rabbit, chicken and silkworm) and two domestic plant species (rice and soybean) compared to their wild ancestors...
January 9, 2018: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29324881/genome-wide-analysis-and-expression-profiles-of-glyoxalase-gene-families-in-chinese-cabbage-brassica-rapa-l
#8
Guixin Yan, Xin Xiao, Nian Wang, Fugui Zhang, Guizhen Gao, Kun Xu, Biyun Chen, Jiangwei Qiao, Xiaoming Wu
The glyoxalase pathway is composed of glyoxalase I (GLYI) and glyoxalase II (GLYII) and is responsible for the detoxification of a cytotoxic metabolite methylglyoxal (MG) into the nontoxic S-D-lactoylglutathione. The two glyoxalase enzymes play a crucial role in stress tolerance in various plant species. Recently, the GLY gene families have well been analyzed in Arabidopsis, rice and soybean, however, little is known about them in Chinese cabbage (Brassica rapa). Here, 16 BrGLYI and 15 BrGLYII genes were identified in the B...
2018: PloS One
https://www.readbyqxmd.com/read/29324879/localized-zinc-distribution-in-shark-vertebrae-suggests-differential-deposition-during-ontogeny-and-across-vertebral-structures
#9
Vincent Raoult, Nicholas Howell, David Zahra, Victor M Peddemors, Daryl L Howard, Martin D de Jonge, Benjamin L Buchan, Jane E Williamson
The development of shark vertebrae and the possible drivers of inter- and intra-specific differences in vertebral structure are poorly understood. Shark vertebrae are used to examine life-history traits related to trophic ecology, movement patterns, and the management of fisheries; a better understanding of their development would be beneficial to many fields of research that rely on these calcified structures. This study used Scanning X-ray Fluorescence Microscopy to observe zinc distribution within vertebrae of ten shark species from five different orders...
2018: PloS One
https://www.readbyqxmd.com/read/29321475/intraskeletal-histovariability-allometric-growth-patterns-and-their-functional-implications-in-bird-like-dinosaurs
#10
Edina Prondvai, Pascal Godefroit, Dominique Adriaens, Dong-Yu Hu
With their elongated forelimbs and variable aerial skills, paravian dinosaurs, a clade also comprising modern birds, are in the hotspot of vertebrate evolutionary research. Inferences on the early evolution of flight largely rely on bone and feather morphology, while osteohistological traits are usually studied to explore life-history characteristics. By sampling and comparing multiple homologous fore- and hind limb elements, we integrate for the first time qualitative and quantitative osteohistological approaches to get insight into the intraskeletal growth dynamics and their functional implications in five paravian dinosaur taxa, Anchiornis, Aurornis, Eosinopteryx, Serikornis, and Jeholornis...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29316754/-detection-of-metals-and-metalloids-in-the-lavage-fluid-of-whole-lung-lavage-of-the-cases-of-pneumoconiosis
#11
K Wen, C G Ding, G Chen, G X Ma, H Q Wang
Objective: To detect of the components and concentration of the metals and metalloids in the lavage fluid of whole-lung lavage (WLL) of the cases of pneumoconiosis, and analyze the characteristics, and explore the method to sample and process the samples of bronchoalveolar lavage fluid (BAL) . Methods: The samples of urine and serum of three cases of pneumoconiosis were collected before WLL, and the samples of BAL were collected during the WLL from the left and right lungs according to the sequence of four pressured gas flow and five negative pressure drainage...
November 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/29316509/synthesis-molecular-modelling-studies-and-adme-prediction-of-benzothiazole-clubbed-oxadiazole-mannich-bases-and-evaluation-of-their-anti-diabetic-activity-through-in-vivo-model
#12
Rubina Bhutani, Dharam Pal Pathak, Garima Kapoor, Asif Husain, Ravi Kant, Md Azhar Iqbal
A small library of new benzothiazole clubbed oxadiazole-Mannich bases (M-1 to M-22) were synthesized and characterized by IR, NMR, Mass and Elemental analysis results. Molecular docking studies were done to assess the binding mode and interactions of synthesized hits at binding site of receptor Peroxisome proliferator-activated receptor, PPAR-γ or PPARG (PDB 1FM9). Among the synthesized compounds, nine compounds were selected on the basis of docking score and evaluated for their in vivo anti-diabetic activity using Oral Glucose Tolerance Test (OGTT) in normal rats followed by Streptozotocin (STZ) - induced diabetes...
January 3, 2018: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29316321/the-role-of-peritoneal-washings-in-the-diagnosis-of-endometriosis
#13
Richard L Cantley, Lorene Yoxtheimer, Stacy Molnar
Endometriosis, the presence of endometrial tissue outside the uterine corpus, is a common finding in reproductive age women. It is classically diagnosed based on the presence of at least two of the following elements: endometrial glands, endometrial stroma, and hemosiderin-laden macrophages (HLMs). Although a common finding in surgical pathology specimens at the time of gynecologic surgery, there is little literature on the role of pelvic washings in diagnosing endometriosis. Our study aimed to examine the characteristics of endometriosis in pelvic washings at the time of gynecologic surgery...
January 8, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29315701/histological-and-quantitative-analyzes-of-the-stromal-and-acinar-components-of-normal-human-prostate-zones
#14
Edilaine F Alves, Bruno Leonardo M de Freitas Ribeiro, Waldemar S Costa, Carla B M Gallo, Francisco J B Sampaio
BACKGROUND: McNeal divided the human prostate into three major anatomical areas: the peripheral zone (PZ), the central zone (CZ), and the transition zone (TZ). Each of these areas is biologically and histologically distinct. The PZ and TZ have clinical significance and are associated with prostate cancer (PC) and benign prostatic hyperplasia (BPH), respectively. Therefore, the objective of the present study was to quantitatively and qualitatively analyze the parenchymal and stromal components that constitute the different prostate zones...
January 8, 2018: Prostate
https://www.readbyqxmd.com/read/29314581/independent-and-mentored-video-review-of-osces
#15
Somnath Mookherjee, Jennie Strujik, Matthew Cunningham, Elizabeth Kaplan, Bas Ak Çoruh
BACKGROUND: Video review of OSCE (objective structured clinical examination) performance allows students to analyse their performance, identify actions and behaviours for correction or reinforcement, and develop a plan for improvement of clinical skills. Student perceptions of the utility of independent and mentored video review are unknown. METHODS: We created a pilot programme of post-OSCE structured video review. Students were randomised to mentored (M) or independent (I) review...
January 5, 2018: Clinical Teacher
https://www.readbyqxmd.com/read/29313671/cluster-formation-in-the-superconducting-complex-intermetallic-compound-be21pt5
#16
Alfred Amon, Alim Ormeci, Matej Bobnar, Lev G Akselrud, Maxim Avdeev, Roman Gumeniuk, Ulrich Burkhardt, Yurii Prots, Christoph Hennig, Andreas Leithe-Jasper, Yuri Grin
Materials with the crystal structure of γ-brass type (Cu5Zn8 type) are typical representatives of intermetallic compounds. From the electronic point of view, they are often interpreted using the valence electron concentration approach of Hume-Rothery, developed previously for transition metals. The γ-brass-type phases of the main-group elements are rather rare. The intermetallic compound Be21Pt5, a new member of this family, was synthesized, and its crystal structure, chemical bonding, and physical properties were characterized...
January 9, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29313173/dietary-deoxynivalenol-does-not-affect-mineral-element-accumulation-in-breast-and-thigh-muscles-of-broiler-chicken
#17
Manfred Sager, Annegret Lucke, Khaled Ghareeb, Manoochehr Allymehr, Qendrim Zebeli, Josef Böhm
Deoxynivalenol (DON), a well-known contaminant of feed, can have negative effects on gut permeability and function in poultry, which then could affect major and trace element content of the broilers' breast and thigh muscles, and ultimately reduce meat quality. To study this hypothesis, DON-contaminated diet was fed to broiler chicks. Two groups of birds were housed in metabolic cages with free access to water and feed, with or without DON (10 mg/kg). After 5 weeks, birds were dissected and samples of the breast and thigh muscles, feed and droppings were analysed for five macro (Ca, K, Mg, Na, and P) and ten micro elements (Al, Cr, Cu, Fe, Mn, Li, Mo, Ni, Pb, Rb, and Zn) by inductively coupled plasma optical emission spectrometry (ICP-OES) or inductively coupled plasma mass spectrometer (ICP-MS) methods...
January 8, 2018: Mycotoxin Research
https://www.readbyqxmd.com/read/29311022/three-dimensional-titanium-miniplates-for-fixation-of-subcondylar-mandibular-fractures-comparison-of-five-designs-using-patient-specific-finite-element-analysis
#18
Mhd Hassan Albogha, Yoshihide Mori, Ichiro Takahashi
PURPOSE: The purpose of the current study is to compare the performance of five designs of three-dimensional titanium miniplates (lambda, strut, delta, rhombic and trapezoid) for fixation of subcondylar mandibular fracture. MATERIALS AND METHODS: Three-dimensional models were constructed for the five miniplates with their screws and integrated into a virtually fractured mandible that was derived from a computed tomographic image of living human. Patient-specific finite element models were analyzed to compare the performances of the miniplates...
December 26, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29306134/production-of-5-hydroxymethylfurfural-from-starch-rich-food-waste-catalyzed-by-sulfonated-biochar
#19
Leichang Cao, Iris K M Yu, Season S Chen, Daniel C W Tsang, Lei Wang, Xinni Xiong, Shicheng Zhang, Yong Sik Ok, Eilhann E Kwon, Hocheol Song, Chi Sun Poon
Sulfonated biochar derived from forestry wood waste was employed for the catalytic conversion of starch-rich food waste (e.g., bread) into 5-hydroxymethylfurfural (HMF). Chemical and physical properties of catalyst were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) surface area, and elemental analysis. The conversion of HMF was investigated via controlling the reaction parameters such as catalyst loading, temperature, and reaction time...
December 29, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29306092/on-the-gamma-spectrometry-efficiency-of-reference-materials-and-soil-samples
#20
S Mohammad Modarresi, S Farhad Masoudi
The relative discrepancies between the gamma spectrometry efficiency of RGU, RGTh, RGK reference materials and some soil samples have been studied using a MCNP model of a real HPGe detector. It has been shown that, in a specified geometry, efficiencies differences depend on the sample elemental composition. The elemental compositions of RGU-1, RGTh-1 reference materials and a soil sample have been evaluated using X-Ray fluorescence (XRF) method and used in the MCNP simulation along with RGK-1 and six other soil samples with different elemental compositions to calculate their efficiencies in different gamma ray energies...
January 3, 2018: Journal of Environmental Radioactivity
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