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https://www.readbyqxmd.com/read/29149637/antiviral-potential-of-natural-compounds-against-influenza-virus-hemagglutinin
#1
S Kannan, P Kolandaivel
Influenza virus of different subtypes H1N1, H2N2, H3N2 and H5N1 cause many human pandemic deaths and threatening the people worldwide. The Hemagglutinin (HA) protein mediates viral attachment to host receptors act as an attractive target. The sixteen natural compounds have been chosen to target the HA protein. Molecular docking studies have been performed to find binding affinity of the compounds. Out of the sixteen, three compounds CI, CII and CIII found to posses a higher binding affinity. The molecular dynamics (MD) simulation has been performed to study the structural, dynamical properties for the nine different complexes CI, CII, CIII bound with H1, H2, H3 proteins and the results were compared...
November 4, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/29149564/binding-thermodynamics-and-kinetics-calculations-using-chemical-host-and-guest-a-comprehensive-picture-of-molecular-recognition
#2
Zhiye Tang, Chia-En A Chang
Understanding the fine balance between changes of entropy and enthalpy and the competition between a guest and water molecules in molecular binding is crucial in fundamental studies and practical applications. Experiments provide measurements. However, illustrating the binding/unbinding processes gives a complete picture of molecular recognition not directly available from experiments, and computational methods bridge the gaps. Here, we investigated guest association/dissociation with β-cyclodextrin (β-CD) by using microsecond-timescale molecular dynamics (MD) simulations, post-analysis and numerical calculations...
November 17, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29148726/a-novel-approach-for-99mtc-labeling-of-red-blood-cells-evaluation-of-99mtc-4saboroxime-as-a-blood-pool-imaging-agent
#3
Min Liu, Zuoquan Zhao, Wei Fang, Shuang Liu
Angiography with radiolabeled red blood cells (RBCs) plays an important role in diagnosis and prognosis in vascular diseases. Both in vitro and in vivo methods have been developed for 99mTc-labeling of RBCs. However, these methods are complicated and lack of reproducibility. Therefore, it is highly desirable to develop an alternative method for routine 99mTc-labeling of RBCs. In this report, we present a novel approach for 99mTc-labeling of RBCs. We prepared a new 99mTc(III) radiotracer [99mTcCl(CDO)(CDOH)2B-4AS] (99mTc-4ASboroxime: 4AS-B(OH)2 = 4-aminosulfonylphenyl)boronic acid, and CDOH2 = cyclohexanedione dioxime) in >95% radiochemical purity...
November 17, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29148566/factors-that-influence-the-provision-of-intrapartum-and-postnatal-care-by-skilled-birth-attendants-in-low-and-middle-income-countries-a-qualitative-evidence-synthesis
#4
REVIEW
Susan Munabi-Babigumira, Claire Glenton, Simon Lewin, Atle Fretheim, Harriet Nabudere
BACKGROUND: In many low- and middle-income countries women are encouraged to give birth in clinics and hospitals so that they can receive care from skilled birth attendants. A skilled birth attendant (SBA) is a health worker such as a midwife, doctor, or nurse who is trained to manage normal pregnancy and childbirth. (S)he is also trained to identify, manage, and refer any health problems that arise for mother and baby. The skills, attitudes and behaviour of SBAs, and the extent to which they work in an enabling working environment, impact on the quality of care provided...
November 17, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29147817/only-efficient-emotional-stimuli-affect-the-content-of-working-memory-during-free-recollection-from-natural-scenes
#5
Arianna Buttafuoco, Tiziana Pedale, Tony W Buchanan, Valerio Santangelo
Emotional events are thought to have privileged access to attention and memory, consuming resources needed to encode competing emotionally neutral stimuli. However, it is not clear whether this detrimental effect is automatic or depends on the successful maintenance of the specific emotional object within working memory. Here, participants viewed everyday scenes including an emotional object among other neutral objects followed by a free-recollection task. Results showed that emotional objects-irrespective of their perceptual saliency-were recollected more often than neutral objects...
November 17, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/29147446/evaluation-of-acute-toxicity-and-early-clinical-outcome-in-head-and-neck-cancers-treated-with-conventional-radiotherapy-and-simultaneous-integrated-boost-arc-radiotherapy
#6
Amit Bahl, Arun S Oinam, Satinder Kaur, Roshan Verma, Arun Elangovan, Sudhir Bhandari, Jaimanti Bakshi, Naresh Panda, Sushmita Ghoshal
Background: Chemoradiotherapy plays an important role in management of locally advanced head and neck cancers. This retrospective analysis was done to evaluate and compare acute toxicity profiles and early clinical outcomes in patients treated with conventional and arc techniques. Methods: Fifty-five patients of head and neck cancers were evaluated. Thirty patients received conventional radiotherapy with 6 MV or cobalt 60 and 25 patients were treated with simultaneous integrated boost-volumetric modulated arc radiotherapy (SIB-VMAT) with dose prescription of 66 - 70 Gy...
August 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29146194/association-analyses-of-genetic-variants-in-long-non-coding-rna-malat1-with-breast-cancer-susceptibility-and-mrna-expression-of-malat1-in-chinese-han-population
#7
Rui Peng, Chenglin Luo, Qiaoyun Guo, Jingjing Cao, Qian Yang, Kaiyan Dong, Shuaibing Wang, Kaijuan Wang, Chunhua Song
The long non-coding RNA (lncRNA) Metastasis-associated lung adenocarcinoma transcript 1(MALAT1) has been implicated in breast cancer (BC). Polymorphisms in MALAT1 may play a vital role in the progress of breast cancer by its regulation function. However, potential genetic variants in MALAT1 affecting the development of BC is rarely explored. In our current molecular epidemiology study, all three tagging SNPs (rs3200401, rs619586 and rs7927113) in lncRNA MALAT1 were selected for genotyping in 487BCE patients and 489 cancer-free controls in Chinese Han population, and futher experiment of quantitative real-time (qRT) PCR was conducted to examine the relative expression of MALAT1...
November 13, 2017: Gene
https://www.readbyqxmd.com/read/29145632/clinical-significance-of-cd13-and-epithelial-mesenchymal-transition-emt-markers-in-hepatocellular-carcinoma
#8
Chihiro Yamanaka, Hiroshi Wada, Hidetoshi Eguchi, Hisanori Hatano, Kunihito Gotoh, Takehiro Noda, Daisaku Yamada, Tadafumi Asaoka, Koichi Kawamoto, Hiroaki Nagano, Yuichiro Doki, Masaki Mori
Background & Aims: To improve prognosis in patients with hepatocellular carcinoma (HCC), the molecular mechanisms of tumor thrombus formation and metastasis must be clarified. The epithelial-mesenchymal transition (EMT) and cancer stem cells (CSCs) play crucial roles in tumor invasion and metastasis. This study aimed to reveal the clinical significance of the expression of the functional CSC marker, CD13, and investigate the correlation between CD13 expression and two EMT markers, E-cadherin and vimentin...
November 14, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29145392/conservation-of-a-microrna-cluster-in-parasitic-nematodes-and-profiling-of-mirnas-in-excretory-secretory-products-and-microvesicles-of-haemonchus-contortus
#9
Henry Y Gu, Neil D Marks, Alan D Winter, William Weir, Thomas Tzelos, Tom N McNeilly, Collette Britton, Eileen Devaney
microRNAs are small non-coding RNAs that are important regulators of gene expression in a range of animals, including nematodes. We have analysed a cluster of four miRNAs from the pathogenic nematode species Haemonchus contortus that are closely linked in the genome. We find that the cluster is conserved only in clade V parasitic nematodes and in some ascarids, but not in other clade III species nor in clade V free-living nematodes. Members of the cluster are present in parasite excretory-secretory products and can be detected in the abomasum and draining lymph nodes of infected sheep, indicating their release in vitro and in vivo...
November 16, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29145336/expression-of-hormone-receptors-in-low-grade-adenosquamous-carcinoma-of-the-breast-a-case-report
#10
Hai-Bo Wu, An-Li Zhang, Wei Wang, Heng Li
RATIONALE: Low-grade adenosquamous carcinoma (LGASC) is a rare subtype of metaplastic breast carcinoma which is generally recognized as a characteristic subgroup of triple-negative breast cancers previously. However, in this study, we reported for the first time a case of LGASC with hormone receptors expression. PATIENT CONCERNS: Pathological analysis of breast tumor specimen obtained by a 42-year-old female patient was performed. Morphologically, it composed of glandular structures with scattered squamous differentiation accompanied by haphazard arrangement of spindle cell stroma...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145305/prognostic-significance-of-metabolic-enzyme-pyruvate-kinase-m2-in-breast-cancer-a-meta-analysis
#11
Yiming Yang, Ke Wu, Yulin Liu, Liang Shi, Kaixiong Tao, Guobin Wang
BACKGROUNDS: Numerous studies have reported that aberrant pyruvate kinase M2 isoform (PKM2) expressed in cancer, indicating that PKM2 plays a critical role in tumor initiation and progression. Nevertheless, its prognostic value in breast cancer tumor is yet contentious. Therefore, we performed this meta-analysis to evaluate the prognostic significance of PKM2 in breast cancer. METHODS: Eligible relevant literatures were retrieved by searching PubMed, the Cochrane Library, Embase through December 2016...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145164/long-noncoding-rna-hnf1a-as1-indicates-a-poor-prognosis-of-colorectal-cancer-and-promotes-carcinogenesis-via-activation-of-the-wnt-%C3%AE-catenin-signaling-pathway
#12
Xin Zhang, Yumin Xiong, Fengying Tang, Ying Bian, Yanhui Chen, Fengli Zhang
Long non-coding RNAs (lncRNAs) have been identified to play critical roles in tumorigenesis. LncRNA HNF1A-AS1 has been suggested to act as an oncogene and serves as a novel prognostic biomarker for various cancer. However, the biological role and clinical significance of lncRNA HNF1A-AS1 in colorectal cancer (CRC) have yet to be fully elusive. Therefore, the present study was designed to determine the expression of lncRNA HNF1A-AS1 in patients with CRC, the role of lncRNA HNF1A-AS1 in CRC cells, as well as the underlying regulatory mechanisms...
October 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29144396/salivary-oxytocin-concentration-changes-during-a-group-drumming-intervention-for-maltreated-school-children
#13
Teruko Yuhi, Hiroaki Kyuta, Hisa-Aki Mori, Chihiro Murakami, Kazumi Furuhara, Mari Okuno, Masaki Takahashi, Daikei Fuji, Haruhiro Higashida
Many emotionally-disturbed children who have been maltreated and are legally separated from their parents or primary caregivers live in group homes and receive compulsory education. Such institutions provide various special intervention programs. Taiko-ensou, a Japanese style of group drumming, is one such program because playing drums in a group may improve children's emotional well-being. However, evidence for its efficacy has not been well established at the biological level. In this study, we measured salivary levels of oxytocin (OT), a neuropeptide associated with social memory and communication, in three conditions (recital, practice, and free sessions) in four classes of school-aged children...
November 16, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29144135/parameterization-of-palmitoylated-cysteine-farnesylated-cysteine-geranylgeranylated-cysteine-and-myristoylated-glycine-for-the-martini-force-field
#14
Yoav Atsmon-Raz, D Peter Tieleman
Peripheral membrane proteins go through various post-translational modifications that covalently bind fatty acid tails to specific amino acids. These post translational modifications significantly alter the lipophilicity of the modified proteins and allow them to anchor to biological membranes. Over 1000 different proteins have been identified to date that require such membrane-protein interactions in order to carry out their biological functions, including members of the Src and Ras superfamilies that play key roles in cell signaling and carcinogenesis...
November 16, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29143952/-the-effect-of-mood-stabilising-drugs-on-cytokine-levels-in-bipolar-disorder-a-systematic-review
#15
S Van Den Ameele, L van Diermen, W Staels, V Coppens, G Dumont, B Sabbe, M Morrens
Veranderde cytokineconcentraties bij personen met een bipolaire stoornis ten opzichte van controle-personen suggereren een rol van het immuunsysteem in de pathofysiologie van bipolaire stoornis. Farmacotherapie is een belangrijke verstorende factor in klinisch onderzoek naar cytokineconcentraties.<br/> DOEL: Evalueren van cytokineconcentraties bij medicatievrije patiënten met een bipolaire stoornis en van het effect van stemmingsstabiliserende geneesmiddelen op deze concentraties.<br/> METHODE: We doorzochten systematisch PubMed en Embase naar klinische studies die cytokineconcentraties bij medicatievrije patiënten met een bipolaire stoornis beschrijven of het effect van een individueel stemmingsstabiliserend geneesmiddel op deze concentraties evalueren...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/29143862/a20-prevents-obesity-induced-development-of-cardiac-dysfunction
#16
Wenjing Xu, Cheng Wang, Minglu Liang, Long Chen, Qin Fu, Fengxiao Zhang, Yan Wang, Dan Huang, Kai Huang
Obesity and an increased free fatty acid (FFA) level are tightly linked, leading to aberrant oxidative stress, inflammation, apoptosis, and progression to cardiovascular disorders. A20 is a ubiquitin-modifying enzyme that plays a significant role in the negative regulation of inflammatory response. Here, we study the role of A20 in obesity-induced heart injury and explore the underlying mechanisms. A20 expression was first increased in mouse hearts after 4 weeks of a high-fat diet (HFD) and then was gradually decreased in the following 20 weeks...
November 16, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29143527/origins-of-enantioselectivity-in-asymmetric-radical-additions-to-octahedral-chiral-at-rhodium-enolates-a-computational-study
#17
Shuming Chen, Xiaoqiang Huang, Eric Meggers, Kendall N Houk
The origin of asymmetric induction in the additions of carbon- and nitrogen-centered radicals to octahedral centrochiral rhodium enolates has been investigated with Density Functional Theory (DFT) calculations. Computed free energies of activation reproduce the preference for the experimentally observed major enantiomer. Good levels of enantioselectivity are maintained upon replacement of the bulky tert-butyl substituents on the ligands with methyl groups. Distortion-interaction analysis indicates that for both carbon-and nitrogen-centered radicals, which have relatively early and late transition states, respectively, the difference in the distortion energies controls the enantioselectivity...
November 16, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29141912/wh2-and-proline-rich-domains-of-wasp-family-proteins-collaborate-to-accelerate-actin-filament-elongation
#18
Peter Bieling, Scott D Hansen, Orkun Akin, Tai-De Li, Carl C Hayden, Daniel A Fletcher, R Dyche Mullins
WASP-family proteins are known to promote assembly of branched actin networks by stimulating the filament-nucleating activity of the Arp2/3 complex. Here, we show that WASP-family proteins also function as polymerases that accelerate elongation of uncapped actin filaments. When clustered on a surface, WASP-family proteins can drive branched actin networks to grow much faster than they could by direct incorporation of soluble monomers. This polymerase activity arises from the coordinated action of two regulatory sequences: (i) a WASP homology 2 (WH2) domain that binds actin, and (ii) a proline-rich sequence that binds profilin-actin complexes...
November 15, 2017: EMBO Journal
https://www.readbyqxmd.com/read/29141053/clinical-and-prognostic-value-of-htert-mrna-expression-in-patients-with-non-small-cell-lung-cancer
#19
Marzena Zalewska-Ziob, Katarzyna Dobija-Kubica, Krzysztof Biernacki, Brygida Adamek, Janusz Kasperczyk, Krzysztof Bruliński, Zofia Ostrowska
Telomerase, undetectable in normal somatic cells, plays a critical role in carcinogenesis of the majority of human tumors including lung carcinoma. The aim of our study was to determine human telomerase reverse transcriptase (hTERT) mRNA expression in patients with non-small cell lung cancer (NSCLC) in order to estimate its usefulness as diagnostic and/or prognostic factor. hTERT expression was analyzed in a group of 12 females and 28 males with NSCLC using Quantitative Real-Time Polymerase Chain Reaction (QRT-PCR method) in cancerous and non-cancerous lung tissues...
November 15, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29140552/the-influence-of-phylogeny-social-style-and-sociodemographic-factors-on-macaque-social-network-structure
#20
Krishna N Balasubramaniam, Brianne A Beisner, Carol M Berman, Arianna De Marco, Julie Duboscq, Sabina Koirala, Bonaventura Majolo, Andrew J MacIntosh, Richard McFarland, Sandra Molesti, Hideshi Ogawa, Odile Petit, Gabriele Schino, Sebastian Sosa, Cédric Sueur, Bernard Thierry, Frans B M de Waal, Brenda McCowan
Among nonhuman primates, the evolutionary underpinnings of variation in social structure remain debated, with both ancestral relationships and adaptation to current conditions hypothesized to play determining roles. Here we assess whether interspecific variation in higher-order aspects of female macaque (genus: Macaca) dominance and grooming social structure show phylogenetic signals, that is, greater similarity among more closely-related species. We use a social network approach to describe higher-order characteristics of social structure, based on both direct interactions and secondary pathways that connect group members...
November 15, 2017: American Journal of Primatology
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