keyword
MENU ▼
Read by QxMD icon Read
search

connect*

keyword
https://www.readbyqxmd.com/read/28347132/radiolabeled-peptides-current-and-new-perspectives
#1
Marta Opalinska, Alicja Hubalewska-Dydejczyk, Anna Sowa-Staszczak
Radiolabeled peptides have been the subject of research for over 20 years and during that time possibility/variety of peptide receptor imaging and later targeted radiotherapy increased significantly. The targeted receptors belong to the large family of G-protein-coupled receptors or tyrosine kinases receptors partially connected with them. They both regulate large signaling networks, control multiple cell functions and are implicated in many diseases including cancers. The essential feature of peptides used in nuclear medicine involves their ability to binding with high affinity and specify to their receptors overexpressed on tumor cells...
June 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28346980/ecological-intensification-to-mitigate-impacts-of-conventional-intensive-land-use-on-pollinators-and-pollination
#2
REVIEW
Anikó Kovács-Hostyánszki, Anahí Espíndola, Adam J Vanbergen, Josef Settele, Claire Kremen, Lynn V Dicks
Worldwide, human appropriation of ecosystems is disrupting plant-pollinator communities and pollination function through habitat conversion and landscape homogenisation. Conversion to agriculture is destroying and degrading semi-natural ecosystems while conventional land-use intensification (e.g. industrial management of large-scale monocultures with high chemical inputs) homogenises landscape structure and quality. Together, these anthropogenic processes reduce the connectivity of populations and erode floral and nesting resources to undermine pollinator abundance and diversity, and ultimately pollination services...
March 27, 2017: Ecology Letters
https://www.readbyqxmd.com/read/28346953/lennox-gastaut-syndrome-a-state-of-the-art-review
#3
Mario Mastrangelo
Lennox-Gastaut syndrome (LGS) is a severe age-dependent epileptic encephalopathy usually with onset between 1 and 8 years of age. Functional neuroimaging studies recently introduced the concept of Lennox-Gastaut as "secondary network epilepsy" resulting from dysfunctions of a complex system involving both cortical and subcortical structures (default-mode network, corticoreticular connections, and thalamus). These dysfunctions are produced by different disorders including hypoxic-ischemic encephalopathies, meningoencephalitis, cortical malformations, neurocutaneous disorders, or tumors...
March 27, 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28346821/structure-activity-relationships-on-cynnamoyl-derivatives-as-inhibitors-of-p300-histone-acetyltransferase
#4
Valentina Noemi Madia, Rosaria Benedetti, Maria Letizia Barreca, Liza Ngo, Luca Pescatori, Antonella Messore, Giovanni Pupo, Francesco Saccoliti, Sergio Valente, Antonello Mai, Luigi Scipione, Yujun George Zheng, Cristina Tintori, Maurizio Botta, Violetta Cecchetti, Lucia Altucci, Roberto Di Santo, Roberta Costi
Human p300 is a polyhedric transcriptional coactivator, playing a crucial role by acetylating histones on specific lysine residues. A great deal of evidences shows that p300 is involved in several diseases as leukemia, tumors and viral infection. Its involvement in pleiotropic biological roles and connections to diseases provide the rationale as to how its modulation could represent an amenable drug target. Several p300 inhibitors (HATi) have been described so far, but all suffer from low potency, lack of specificity or low cell-permeability, highlighting the need to find more effective inhibitors...
March 27, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28346786/break-down-in-order-to-build-up-decomposing-small-molecules-for-fragment-based-drug-design-with-emolfrag
#5
Tairan Liu, Misagh Naderi, Chris Alvin, Supratik Mukhopadhyay, Michal Brylinski
Constructing high-quality libraries of molecular building blocks is essential for successful fragment-based drug discovery. In this communication, we describe eMolFrag, a new open-source software to decompose organic compounds into non-redundant fragments retaining molecular connectivity information. Given a collection of molecules, eMolFrag generates a set of unique fragments comprising larger moieties, bricks, and smaller linkers connecting bricks. These building blocks can subsequently be used to construct virtual screening libraries for targeted drug discovery...
March 27, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28346707/periurethral-muscle-derived-mononuclear-cell-injection-improves-urethral-sphincter-restoration-in-rats
#6
Marcelo Pitelli Turco, Alex Balduino de Souza, Isida de Campos Sousa, Paula Fratini, Mariana Matera Veras, Marcio Nogueira Rodrigues, José de Bessa, Marina Pandolphi Brolio, Katia Ramos Moreira Leite, Homero Bruschini, Miguel Srougi, Maria Angélica Miglino, Cristiano Mendes Gomes
AIMS: Investigate the effect of a novel cell-based therapy with skeletal muscle-derived mononuclear cells (SMDMCs) in a rat model of stress urinary incontinence. METHODS: Male Wistar-Kyoto rats' hind limb muscles were enzymatically dissociated, and SMDMCs were isolated without needing expansion. The cell population was characterized. Twenty female rats underwent urethrolysis. One week later, 10 rats received periurethral injection of 10(6) cells (SMDMC group), and 10 rats received saline injections (Saline group)...
March 27, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28346685/experience-of-shame-mediates-the-relationship-between-pathological-narcissism-and-suicidal-ideation-in-psychiatric-outpatients
#7
Nenad Jaksic, Darko Marcinko, Milena Skocic Hanzek, Blaz Rebernjak, John S Ogrodniczuk
OBJECTIVE: Pathological narcissism, described by 2 dysfunctional phenotypic forms-grandiosity and vulnerability-has often been connected to suicidal tendencies in theoretical and clinical literatures. Furthermore, shame proneness has been implicated as a key mechanism that links these 2 constructs. However, empirical evidence for the presumed relationship between pathological narcissism and suicidal tendencies is sparse, and no prior research has investigated the role of shame proneness in this relationship...
March 27, 2017: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/28346453/activity-induced-histone-modifications-govern-neurexin-1-mrna-splicing-and-memory-preservation
#8
Xinlu Ding, Sanxiong Liu, Miaomiao Tian, Wenhao Zhang, Tao Zhu, Dongdong Li, Jiawei Wu, HaiTeng Deng, Yichang Jia, Wei Xie, Hong Xie, Ji-Song Guan
Epigenetic mechanisms regulate the formation, consolidation and reconsolidation of memories. However, the signaling path from neuronal activation to epigenetic modifications within the memory-related brain circuit remains unknown. We report that learning induces long-lasting histone modifications in hippocampal memory-activated neurons to regulate memory stability. Neuronal activity triggers a late-onset shift in Nrxn1 splice isoform choice at splicing site 4 by accumulating a repressive histone marker, H3K9me3, to modulate the splicing process...
March 27, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28346377/impact-of-beamforming-on-the-path-connectivity-in-cognitive-radio-ad-hoc-networks
#9
Le The Dung, Tran Dinh Hieu, Seong-Gon Choi, Byung-Seo Kim, Beongku An
This paper investigates the impact of using directional antennas and beamforming schemes on the connectivity of cognitive radio ad hoc networks (CRAHNs). Specifically, considering that secondary users use two kinds of directional antennas, i.e., uniform linear array (ULA) and uniform circular array (UCA) antennas, and two different beamforming schemes, i.e., randomized beamforming and center-directed to communicate with each other, we study the connectivity of all combination pairs of directional antennas and beamforming schemes and compare their performances to those of omnidirectional antennas...
March 27, 2017: Sensors
https://www.readbyqxmd.com/read/28346368/pathophysiological-significance-of-dermatan-sulfate-proteoglycans-revealed-by-human-genetic-disorders
#10
REVIEW
Shuji Mizumoto, Tomoki Kosho, Shuhei Yamada, Kazuyuki Sugahara
The indispensable roles of dermatan sulfate-proteoglycans (DS-PGs) have been demonstrated in various biological events including construction of the extracellular matrix and cell signaling through interactions with collagen and transforming growth factor-β, respectively. Defects in the core proteins of DS-PGs such as decorin and biglycan cause congenital stromal dystrophy of the cornea, spondyloepimetaphyseal dysplasia, and Meester-Loeys syndrome. Furthermore, mutations in human genes encoding the glycosyltransferases, epimerases, and sulfotransferases responsible for the biosynthesis of DS chains cause connective tissue disorders including Ehlers-Danlos syndrome and spondyloepimetaphyseal dysplasia with joint laxity characterized by skin hyperextensibility, joint hypermobility, and tissue fragility, and by severe skeletal disorders such as kyphoscoliosis, short trunk, dislocation, and joint laxity...
March 27, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28346354/anti-inflammatory-properties-of-irisin-mediator-of-physical-activity-are-connected-with-tlr4-myd88-signaling-pathway-activation
#11
Agnieszka Irena Mazur-Bialy, Ewa Pocheć, Marcin Zarawski
Irisin, an adipomiokine known as a mediator of physical activity, induces the browning of adipose tissue and it has potentially protective properties in the development of obesity-related states, such as insulin resistance, arteriosclerosis, and type 2 diabetes. Despite numerous studies conducted on this factor, still little is known about its impact on the functioning of immunocompetent cells, but its potential anti-inflammatory properties were previously suggested. In the current study we investigated the role of irisin (0-100 nM) in the downstream pathway activation of Toll-like receptor 4 (TLR4) in RAW 264...
March 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28346339/a-power-planning-algorithm-based-on-rpl-for-ami-wireless-sensor-networks
#12
Marcio L F Miguel, Edgard Jamhour, Marcelo E Pellenz, Manoel C Penna
The advanced metering infrastructure (AMI) is an architecture for two-way communication between electric, gas and water meters and city utilities. The AMI network is a wireless sensor network that provides communication for metering devices in the neighborhood area of the smart grid. Recently, the applicability of a routing protocol for low-power and lossy networks (RPL) has been considered in AMI networks. Some studies in the literature have pointed out problems with RPL, including sub-optimal path selection and instability...
March 25, 2017: Sensors
https://www.readbyqxmd.com/read/28346140/em-connectomics-reveals-axonal-target-variation-in-a-sequence-generating-network
#13
Jörgen Kornfeld, Sam E Benezra, Rajeevan T Narayanan, Fabian Svara, Robert Egger, Marcel Oberlaender, Winfried Denk, Michael A Long
The sequential activation of neurons has been observed in various areas of the brain, but in no case is the underlying network structure well understood. Here we examined the circuit anatomy of zebra finch HVC, a cortical region that generates sequences underlying the temporal progression of the song. We combined serial block-face electron microscopy with light microscopy to determine the cell types targeted by HVC(RA) neurons, which control song timing. Close to their soma, axons almost exclusively targeted inhibitory interneurons, consistent with what had been found with electrical recordings from pairs of cells...
March 27, 2017: ELife
https://www.readbyqxmd.com/read/28346132/electronic-health-record-s-effects-on-the-outpatient-office-visit-and-clinical-education
#14
Marie B Sandoval, Mary Val Palumbo, Vicki Hart
BACKGROUND: During an office visit, the provider has the important cognitive task of attending to the patient while actively using the electronic health record (EHR).  Prior literature suggests that EHR may have a positive effect on simple tasks, but a negative effect on tasks that require complex cognitive processes.  No study has examined the provider's perception of EHR on multiple distinct aspects of the office visit. METHODS: We surveyed providers/preceptors regarding their perception of EHR on multiple aspects of the office visit...
January 24, 2017: Journal of Innovation in Health Informatics
https://www.readbyqxmd.com/read/28346112/a-growing-disconnection-from-nature-is-evident-in-cultural-products
#15
Selin Kesebir, Pelin Kesebir
Human connection with nature is widely believed to be in decline even though empirical evidence is scarce on the magnitude and historical pattern of the change. Studying works of popular culture in English throughout the 20th century and later, we have documented a cultural shift away from nature that begins in the 1950s. Since then, references to nature have been decreasing steadily in fiction books, song lyrics, and film storylines, whereas references to the human-made environment have not. The observed temporal pattern is consistent with the explanatory role of increased virtual and indoors recreation options (e...
March 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28346078/molecular-dynamics-simulation-of-three-plastic-additives-diffusion-in-polyethylene-terephthalate
#16
Bo Li, Zhi-Wei Wang, Qin-Bao Lin, Chang-Ying Hu
Accurate diffusion coefficient data of additives in polymer is of paramount importance for estimating the migration of the additives over time. In this article it is shown how this diffusion coefficient can be estimated for three plastic additives [2-(2'-hydroxy-5'-methylphenyl) (UV-P), 2, 6-di-tert-butyl-4-methylphenol (BHT) and di-(2-ethylhexyl) phthalate (DEHP)] in polyethylene terephthalate (PET) using the molecular dynamics (MD) simulation method. MD simulations were performed at temperatures of 293-433 K...
March 27, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28345920/tuning-the-continuum-of-structural-states-in-the-native-ensemble-of-a-regulatory-protein
#17
Abhishek Narayan, Athi N Naganathan
The mesoscale nature of proteins allows for an efficient coupling between environmental cues and conformational changes enabling their function as molecular transducers. Delineating the precise structural origins of such a connection and the expected spectroscopic response has however been challenging. In this work, we perform a combination of urea-temperature double perturbation experiments and theoretical modeling to probe the conformational landscape of Cnu, a natural thermosensor protein. We observe unique ensemble signatures that point to a continuum of conformational sub-states in the native ensemble and that respond intricately to perturbations upon monitoring secondary-, tertiary-structures, distances between an intrinsic FRET pair and hydrodynamic volumes...
March 27, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28345882/covalent-allosteric-inactivation-of-ptp1b-by-an-inhibitor-electrophile-conjugate
#18
Puminan Punthasee, Adrian R Laciak, Andrea Hicks Cummings, Kasi Viswanatharaju Ruddraraju, Sarah M Lewis, Roman Hillebrand, Harkewal Singh, John J Tanner, Kent S Gates
Protein tyrosine phosphatase 1B (PTP1B) is a validated drug target but it has proven difficult to develop medicinally-useful, reversible inhibitors of this enzyme. Here we explored covalent strategies for the inactivation of PTP1B using a conjugate composed of an active site-directed 5-aryl-1,2,5-thiadiazolidin-3-one 1,1-dioxide inhibitor connected via a short linker to an electrophilic α-bromoacetamide moiety. The inhibitor-electrophile conjugate 5a caused time-dependent loss of PTP1B activity consistent with a covalent inactivation mechanism...
March 27, 2017: Biochemistry
https://www.readbyqxmd.com/read/28345881/silane-and-germane-molecular-electronics
#19
Timothy A Su, Haixing Li, Rebekka S Klausen, Nathaniel T Kim, Madhav Neupane, James L Leighton, Michael L Steigerwald, Latha Venkataraman, Colin Nuckolls
This Account provides an overview of our recent efforts to uncover the fundamental charge transport properties of Si-Si and Ge-Ge single bonds and introduce useful functions into group 14 molecular wires. We utilize the tools of chemical synthesis and a scanning tunneling microscopy-based break-junction technique to study the mechanism of charge transport in these molecular systems. We evaluated the fundamental ability of silicon, germanium, and carbon molecular wires to transport charge by comparing conductances within families of well-defined structures, the members of which differ only in the number of Si (or Ge or C) atoms in the wire...
March 27, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28345868/immune-system-activation-and-depression-roles-of-serotonin-in-the-central-nervous-system-and-periphery
#20
Matthew James Robson, Meagan A Quinlan, Randy D Blakely
Serotonin (5-hydroxytryptamine, 5-HT) has long been recognized as a key contributor to the regulation of mood and anxiety and is strongly associated with the etiology of major depressive disorder (MDD). Although more known for its roles within the central nervous system (CNS), 5-HT is recognized to modulate several key aspects of immune system function that may contribute to the development of MDD. Copious amounts of research have outlined a connection between alterations in immune system function, inflammation status and MDD...
March 27, 2017: ACS Chemical Neuroscience
keyword
keyword
79639
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"