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https://www.readbyqxmd.com/read/28934803/two-interesting-cases-of-meralgia-paraesthetica
#1
Christopher David Jones, Luke Guiot, Mark Portelli, Timothy Bullen, Paul Skaife
Meralgia paraesthetica (MP) is a condition originally described by Bernhardt in 1878 and was eventually named by Roth in 1895. It is caused by compression of the lateral femoral cutaneous nerve (LFCN) resulting in varying types of discomfort. Severity of the symptoms can range from mildly uncomfortable to painfully disabling. In this article we discuss 2 patients with a LFCN injury occurring as a result of laparoscopic ventral rectopexy (LVR). The first patient is a 46-year-old female who reported pain and dysesthesia in the left groin and the anterolateral thigh, 2 days post LCR...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934799/factors-influencing-the-application-of-a-biopsychosocial-perspective-in-clinical-judgement-of-chronic-pain-interactive-management-with-medical-students
#2
Christopher P Dwyer, Phoebe E McKenna-Plumley, Hannah Durand, Emer M Gormley, Brian W Slattery, Owen M Harney, Padraig MacNeela, Brian E McGuire
BACKGROUND: Though there is wide support for the application of biopsychosocial perspectives in clinical judgement of chronic pain cases, such perspectives are often overlooked due to either inadequate training or attitudes favoring a biomedical approach. Recent research has indicated that despite such explanations, both established general practitioners (GP) and medical students account for some psychosocial factors when making clinical judgements regarding chronic pain cases, but report not being likely to apply these in real-world, clinical settings due to numerous factors, including available time with patients...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934789/lack-of-gender-and-age-differences-in-pain-measurements-following-exercise-in-people-with-chronic-whiplash-associated-disorders
#3
Kelly Ickmans, Anneleen Malfliet, Margot De Kooning, Lisa Goudman, Ives Hubloue, Tom Schmitz, Dorien Goubert, Maria Encarnacion Aguilar-Ferrandiz
BACKGROUND: Individuals with chronic whiplash associated disorders (WAD) present persistent pain in the absence of structural pathology. In these people, altered central pain processing and central sensitization are observed. The role of personal factors, such as gender and age, on pain processing mechanisms in chronic WAD, however, is still unclear. OBJECTIVES: This study investigated possible gender- and age-related differences in self-reported and experimental pain measurements in people with chronic WAD...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934678/establishment-of-cell-line-with-nk-nkt-phenotype-from-myeloid-nk-cell-acute-leukemia
#4
A Darji, N Desai, R Modi, B Khamar, S Rajkumar
Acute Myeloid Leukemia (AML) is the most common malignancy in adults with a 5-year survival rate of 27% of the total affected population. For effective treatment and new drug discovery, cell lines are considered as a very important tool. Here we report an establishment of a continuous human cell line AML-004 with a hypo-diploid chromosome 44 and presence of both NK/NKT phenotypes. The cell line was isolated from the blood sample of myeloid NK cell acute leukemia patients and extensively characterized by flow cytometery, morphology, and cytogentic analysis...
September 13, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28934662/a-pc-pu-nanoparticle-pu-decellularized-scaffold-composite-vascular-patch-synergistically-optimized-overall-performance-promotes-endothelialization
#5
Jun Zhang, Cheng Liu, Fuling Feng, Dawei Wang, Shuaishuai Lu, Guo Wei, Hong Mo, Tong Qiao
Composite vascular patches have gained increasingly attention due to the limited availability of autologous patches (vascular graft materials made from the blood vessels of the same recipient), the lack of growth capability of nonautologous patches (vascular graft materials made from the blood vessels of a different donor) and the disadvantages of synthetic patches. In this study, we report a highly biocompatible phosphatidylcholine-polyurethane nanoparticle/polyurethane/decellularized scaffold composite vascular patch (PCVP)...
September 6, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28934536/glomus-tumor-of-the-sciatic-nerve-an-extraspinal-cause-of-sciatica
#6
Basilia Onyinyechukwu Nwankwo, Robert M Henshaw, Dhruv Kumar
Glomus tumors are small, benign tumors that arise from glomus bodies, structures found normally within the dermis that assist in temperature regulation via their vasoconstrictive response to sympathetic stimuli. Glomus tumors are found typically in the hand and are classically a cause of focal pain and temperature sensitivity. They often present as a small blue lesion seen under the nail bed of a finger or a toe and cause point tenderness. Glomus tumors of peripheral nerves are exceedingly rare and can lead to disability akin to compressive neuropathy when present...
September 21, 2017: Orthopedics
https://www.readbyqxmd.com/read/28934493/ubalai-is-a-monomeric-type-iie-restriction-enzyme
#7
Giedrius Sasnauskas, Giedre Tamulaitiene, Gintautas Tamulaitis, Jelena Calyševa, Migle Laime, Renata Rimšeliene, Arvydas Lubys, Virginijus Siksnys
Type II restriction endonucleases (REases) form a large and highly diverse group of enzymes. Even REases specific for a common recognition site often vary in their oligomeric structure, domain organization and DNA cleavage mechanisms. Here we report biochemical and structural characterization of the monomeric restriction endonuclease UbaLAI, specific for the pseudosymmetric DNA sequence 5'-CC/WGG-3' (where W = A/T, and '/' marks the cleavage position). We present a 1.6 Å co-crystal structure of UbaLAI N-terminal domain (UbaLAI-N) and show that it resembles the B3-family domain of EcoRII specific for the 5'-CCWGG-3' sequence...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934492/concerted-action-of-two-3-cap-independent-translation-enhancers-increases-the-competitive-strength-of-translated-viral-genomes
#8
Zhiyou Du, Olga M Alekhina, Konstantin S Vassilenko, Anne E Simon
Several families of plant viruses evolved cap-independent translation enhancers (3'CITE) in the 3' untranslated regions of their genomic (g)RNAs to compete with ongoing cap-dependent translation of cellular mRNAs. Umbravirus Pea enation mosaic virus (PEMV)2 is the only example where three 3'CITEs enhance translation: the eIF4E-binding Panicum mosaic virus-like translational enhancer (PTE) and ribosome-binding 3' T-shaped structure (TSS) have been found in viruses of different genera, while the ribosome-binding kl-TSS that provides a long-distance interaction with the 5' end is unique...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934486/stn1-pola2-interaction-provides-a-basis-for-primase-pol-%C3%AE-stimulation-by-human-stn1
#9
Swapna Ganduri, Neal F Lue
The CST (CTC1-STN1-TEN1) complex mediates critical functions in maintaining telomere DNA and overcoming genome-wide replication stress. A conserved biochemical function of the CST complex is its primase-Pol α (PP) stimulatory activity. In this report, we demonstrate the ability of purified human STN1 alone to promote PP activity in vitro. We show that this regulation is mediated primarily by the N-terminal OB fold of STN1, but does not require the DNA-binding activity of this domain. Rather, we observed a strong correlation between the PP-stimulatory activity of STN1 variants and their abilities to bind POLA2...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934484/regulation-of-hur-structure-and-function-by-dihydrotanshinone-i
#10
Preet Lal, Linda Cerofolini, Vito Giuseppe D'Agostino, Chiara Zucal, Carmelo Fuccio, Isabelle Bonomo, Erik Dassi, Stefano Giuntini, Danilo Di Maio, Vikalp Vishwakarma, Ranjan Preet, Sha Neisha Williams, Max S Fairlamb, Rachel Munk, Elin Lehrmann, Kotb Abdelmohsen, Saioa R Elezgarai, Claudio Luchinat, Ettore Novellino, Alessandro Quattrone, Emiliano Biasini, Leonardo Manzoni, Myriam Gorospe, Dan A Dixon, Pierfausto Seneci, Luciana Marinelli, Marco Fragai, Alessandro Provenzani
The Human antigen R protein (HuR) is an RNA-binding protein that recognizes U/AU-rich elements in diverse RNAs through two RNA-recognition motifs, RRM1 and RRM2, and post-transcriptionally regulates the fate of target RNAs. The natural product dihydrotanshinone-I (DHTS) prevents the association of HuR and target RNAs in vitro and in cultured cells by interfering with the binding of HuR to RNA. Here, we report the structural determinants of the interaction between DHTS and HuR and the impact of DHTS on HuR binding to target mRNAs transcriptome-wide...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934476/crystal-structure-of-an-engineered-hiv-specific-recombinase-for-removal-of-integrated-proviral-dna
#11
Gretchen Meinke, Janet Karpinski, Frank Buchholz, Andrew Bohm
As part of the HIV infection cycle, viral DNA inserts into the genome of host cells such that the integrated DNA encoding the viral proteins is flanked by long terminal repeat (LTR) regions from the retrovirus. In an effort to develop novel genome editing techniques that safely excise HIV provirus from cells, Tre, an engineered version of Cre recombinase, was designed to target a 34-bp sequence within the HIV-1 LTR (loxLTR). The sequence targeted by Tre lacks the symmetry present in loxP, the natural DNA substrate for Cre...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934278/intercalated-disc-in-failing-hearts-from-patients-with-dilated-cardiomyopathy-its-role-in-the-depressed-left-ventricular-function
#12
Ana Ortega, Estefanía Tarazón, Carolina Gil-Cayuela, María García-Manzanares, Luis Martínez-Dolz, Francisca Lago, José Ramón González-Juanatey, Juan Cinca, Esther Jorge, Manuel Portolés, Esther Roselló-Lletí, Miguel Rivera
Alterations in myocardial structure and reduced cardiomyocyte adhesions have been previously described in dilated cardiomyopathy (DCM). We studied the transcriptome of cell adhesion molecules in these patients and their relationships with left ventricular (LV) function decay. We also visualized the intercalated disc (ID) structure and organization. The transcriptomic profile of 23 explanted LV samples was analyzed using RNA-sequencing (13 DCM, 10 control [CNT]), focusing on cell adhesion genes. Electron microscopy analysis to visualize ID structural differences and immunohistochemistry experiments of ID proteins was also performed...
2017: PloS One
https://www.readbyqxmd.com/read/28934246/discovery-of-pf-06928215-as-a-high-affinity-inhibitor-of-cgas-enabled-by-a-novel-fluorescence-polarization-assay
#13
Justin Hall, Amy Brault, Fabien Vincent, Shawn Weng, Hong Wang, Darren Dumlao, Ann Aulabaugh, Dikran Aivazian, Dana Castro, Ming Chen, Jeffrey Culp, Ken Dower, Joseph Gardner, Steven Hawrylik, Douglas Golenbock, David Hepworth, Mark Horn, Lyn Jones, Peter Jones, Eicke Latz, Jing Li, Lih-Ling Lin, Wen Lin, David Lin, Frank Lovering, Nootaree Niljanskul, Ryan Nistler, Betsy Pierce, Olga Plotnikova, Daniel Schmitt, Suman Shanker, James Smith, William Snyder, Timothy Subashi, John Trujillo, Edyta Tyminski, Guoxing Wang, Jimson Wong, Bruce Lefker, Leslie Dakin, Karen Leach
Cyclic GMP-AMP synthase (cGAS) initiates the innate immune system in response to cytosolic dsDNA. After binding and activation from dsDNA, cGAS uses ATP and GTP to synthesize 2', 3' -cGAMP (cGAMP), a cyclic dinucleotide second messenger with mixed 2'-5' and 3'-5' phosphodiester bonds. Inappropriate stimulation of cGAS has been implicated in autoimmune disease such as systemic lupus erythematosus, thus inhibition of cGAS may be of therapeutic benefit in some diseases; however, the size and polarity of the cGAS active site makes it a challenging target for the development of conventional substrate-competitive inhibitors...
2017: PloS One
https://www.readbyqxmd.com/read/28934222/endogenous-rgs14-is-a-cytoplasmic-nuclear-shuttling-protein-that-localizes-to-juxtanuclear-membranes-and-chromatin-rich-regions-of-the-nucleus
#14
Mary Rose Branch, John R Hepler
Regulator of G protein signaling 14 (RGS14) is a multifunctional scaffolding protein that integrates G protein and H-Ras/MAPkinase signaling pathways to regulate synaptic plasticity important for hippocampal learning and memory. However, to date, little is known about the subcellular distribution and roles of endogenous RGS14 in a neuronal cell line. Most of what is known about RGS14 cellular behavior is based on studies of tagged, recombinant RGS14 ectopically overexpressed in unnatural host cells. Here, we report for the first time a comprehensive assessment of the subcellular distribution and dynamic localization of endogenous RGS14 in rat B35 neuroblastoma cells...
2017: PloS One
https://www.readbyqxmd.com/read/28934166/is-branched-chain-amino-acids-supplementation-an-efficient-nutritional-strategy-to-alleviate-skeletal-muscle-damage-a-systematic-review
#15
REVIEW
Alexandre Fouré, David Bendahan
Amino acids and more precisely, branched-chain amino acids (BCAAs), are usually consumed as nutritional supplements by many athletes and people involved in regular and moderate physical activities regardless of their practice level. BCAAs have been initially shown to increase muscle mass and have also been implicated in the limitation of structural and metabolic alterations associated with exercise damage. This systematic review provides a comprehensive analysis of the literature regarding the beneficial effects of BCAAs supplementation within the context of exercise-induced muscle damage or muscle injury...
September 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28934145/spectroscopic-electrochemical-and-dft-studies-of-phosphorescent-homoleptic-cyclometalated-iridium-iii-complexes-based-on-substituted-4-fluorophenylvinyl-and-4-methoxyphenylvinylquinolines
#16
Adewale O Adeloye, Malose J Mphahlele, Abolanle S Adekunle, Lydia Rhyman, Ponnadurai Ramasami
This study reports the synthesis and comparative investigation of the substituent effects of a new series of highly luminescent homoleptic tris-cyclometalated iridium(III) complexes of the type [Ir(N(˄)C)₃]. These are based on two ligand type derivatives comprising of 4-fluorophenylvinylquinolines and 4-methoxyphenylvinylquinolines with electron-donating and/or electron-withdrawing groups as aryl substituents at 2-position. The structures of the ligands and their complexes were characterized by means of FT-IR, UV-Vis and NMR spectrometry complemented with photoluminescence and cyclic voltammetry...
September 21, 2017: Materials
https://www.readbyqxmd.com/read/28934144/the-recognition-of-calmodulin-to-the-target-sequence-of-calcineurin-a-novel-binding-mode
#17
Chia-Lin Chyan, Deli Irene, Sin-Mao Lin
Calcineurin (CaN) is a Ca(2+)/calmodulin-dependent Ser/Thr protein phosphatase, which plays essential roles in many cellular and developmental processes. CaN comprises two subunits, a catalytic subunit (CaN-A, 60 kDa) and a regulatory subunit (CaN-B, 19 kDa). CaN-A tightly binds to CaN-B in the presence of minimal levels of Ca(2+), but the enzyme is inactive until activated by CaM. Upon binding to CaM, CaN then undergoes a conformational rearrangement, the auto inhibitory domain is displaced and thus allows for full activity...
September 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28933976/the-social-context-of-adolescent-co-use-of-cigarillos-and-marijuana-blunts
#18
Elizabeth Antognoli, Sarah Koopman Gonzalez, Erika Trapl, David Cavallo, Rock Lim, Brittany Lavanty, Susan Flocke
BACKGROUND: The use of cigarillos for smoking as a tobacco product and for making marijuana blunts is increasing among adolescents. Previous research has documented the co-use of these products, however little is known about the contextual features that generate and sustain this practice. OBJECTIVE: This study aims for a deeper understanding of why and how co-use of cigarillos and marijuana blunts occurs. METHODS: Between December 2015 and April 2016, we conducted in-depth interviews with 30 adolescents aged 14-18 who reported smoking ≥1 cigarillo per week...
September 21, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28933951/a-developmentally-relevant-approach-to-classifying-nonconsensual-sexual-experiences-in-the-study-of-women-s-sexual-well-being
#19
Chelsea D Kilimnik, Cindy M Meston
In this article we propose a sexual developmental approach to classifying the onset of nonconsensual sexual experiences (NSEs) that differs from the traditional age cutoff approach. Online measures of sexual self-schemas, sexual response, and sexual functioning were administered to 797 women with and without NSE histories. Women were grouped based on when their NSEs first occurred in reference to their age of menarche and age of their first consensual sexual experience (i.e., premenarche onset, postmenarche preconsensual onset, postconsensual onset, and no NSEs)...
September 21, 2017: Journal of Sex Research
https://www.readbyqxmd.com/read/28933887/ontogeny-of-emotional-and-behavioral-problems-in-a-low-income-mexican-american-sample
#20
Betty Lin, Keith A Crnic, Linda J Luecken, Nancy A Gonzales
Clinically meaningful behavior problems are thought to be present beginning in the early toddler years, yet few studies have investigated correlates of behavior problems assessed before age 2 years. The current study investigated the direct and interactive contributions of early infant and caregiver characteristics thought to play an important role in the ontogeny of behavior problems. Specifically, the study examined: (a) the links between infant temperamental reactivity and toddler behavioral symptoms, (b) whether maternal sensitivity moderated associations between temperamental reactivity and behavioral symptoms, (c) whether variability in temperamental reactivity was explained by exposure to maternal stressful life events (SLEs) in utero, and (d) whether child sex moderated these pathways...
September 21, 2017: Developmental Psychology
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