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https://www.readbyqxmd.com/read/28697312/proteome-analysis-of-irradiated-endothelial-cells-reveals-persistent-alteration-in-protein-degradation-and-the-rhogdi-and-no-signalling-pathways
#1
Omid Azimzadeh, Vikram Subramanian, Susanne Ständer, Juliane Merl-Pham, Donna Lowe, Zarko Barjaktarovic, Simone Moertl, Ken Raj, Michael J Atkinson, Soile Tapio
PURPOSE: Epidemiological studies indicate that radiation doses as low as 0.5 Gy increase the risk of cardiovascular disease decades after the exposure. The aim of the present study was to investigate whether this radiation dose causes late molecular alterations in endothelial cells that could support the population-based data. MATERIALS AND METHODS: Human coronary artery endothelial cells were irradiated at 0.5 Gy (X-ray) and radiation-induced changes in the proteome were investigated after different time intervals (1, 7 and 14 d) using ICPL technology...
July 11, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/28664635/green-energetic-nitrogen-rich-salts-of-1-1-dinitramino-5-5-bistetrazolate
#2
Piao He, Le Wu, Jinting Wu, Qianyou Wang, Zhimin Li, Michael Gozin, Jianguo Zhang
A series of nitrogen-rich energetic salts of 1,1'-dinitramino-5,5'-bistetrazolate (DNABT) guanidinium (1), aminoguanidinium (2), diaminoguanidinium (3), triaminoguanidinium (4), diaminouronium (5), 3,4-diamino-1,2,4-triazolium (6) and ethylenediammonium (7) were synthesized by a metathesis strategy, and characterized by elemental analysis, MS and IR spectroscopy, single crystal X-ray diffraction and differential scanning calorimetry (DSC). The natural bond orbitals (NBO) and electrostatic potential (ESP) were further computed for a better understanding of the structures for DNABT molecule...
June 30, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28654133/distraction-from-itch-shows-brainstem-activation-without-reduction-in-experimental-itch-sensation
#3
Astrid Stumpf, Bettina Pfleiderer, Gudrun Schneider, Gereon Heuft, Martin Schmelz, Ngoc Quan Phan, Sonja Ständer, Markus Burgmer
The central processing of itch is not completely understood. This is the first study to use functional magnetic resonance imaging (fMRI) to examine the central modulation by distraction of experimentally induced itch. A total of 33 healthy volunteers were examined with fMRI. Periods of itch induction without distraction and itch with distraction by a Stroop task were counterbalanced during the scanning to examine task-specific changes in blood oxygenation level dependent-signal. The intensity of the subjects' itch sensation, desire to scratch and pain sensation were evaluated...
June 27, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28591453/-water-stress-selten-unverstanden-und-unl%C3%A3-sbar-und-doch-relevant
#4
EDITORIAL
Sonja Ständer
No abstract text is available yet for this article.
June 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28560564/an-electrospray-ionization-mass-spectrometry-study-on-the-in-vacuo-hetero-oligomers-formed-by-the-antimicrobial-peptides-surfactin-and-gramicidin-s
#5
Marina Rautenbach, N Maré Vlok, Hans A Eyéghé-Bickong, Marthinus J van der Merwe, Marietjie A Stander
It was previously observed that the lipopeptide surfactants in surfactin (Srf) have an antagonistic action towards the highly potent antimicrobial cyclodecapeptide, gramicidin S (GS). This study reports on some of the molecular aspects of the antagonism as investigated through complementary electrospray ionization mass spectrometry techniques. We were able to detect stable 1:1 and 2:1 hetero-oligomers in a mixture of surfactin and gramicidin S. The noncovalent interaction between GS and Srf, with the proposed equilibrium: GS~Srf↔GS+Srf correlated to apparent K d values of 6-9 μM in gas-phase and 1 μM in aqueous solution...
August 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28543859/pustular-erythema-multiforme-major-associated-with-atypical-pneumonia
#6
R Wolf, S Ständer, O Well, L Frey, I Klier, S Brunner, M Flaig, A Wollenberg, T Ruzicka
A 52-year-old male patient presented to the hospital with severe difficulties swallowing, sore eyes and an asymptomatic skin rash. The patient was fully oriented, vital signs were normal. Two days before admission to the hospital, the referring physician had suspected an upper respiratory tract infection and had started treatment with oral cefuroxime while also prescribing ibuprofen for sore throat. This article is protected by copyright. All rights reserved.
May 23, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28466423/chronic-pruritus-current-and-emerging-treatment-options
#7
REVIEW
Manuel P Pereira, Sonja Ständer
Chronic pruritus remains a central societal issue because of its high occurrence and the substantial decrease in quality of life it may cause to affected individuals. Not only dermatological conditions, but also systemic, neurological, or psychiatric diseases may lead to chronic pruritus. Additionally, various underlying conditions may coexist or the cause may be unknown. Due to its heterogeneity, the therapeutic approach is complex and remains a challenge for the clinician. Basic measures such as emollients to avoid xerosis and treatment of the underlying disease should be initiated regardless of the duration of the symptom...
June 2017: Drugs
https://www.readbyqxmd.com/read/28462738/models-of-antimicrobial-pressure-on-intestinal-bacteria-of-the-treated-host-populations
#8
V V Volkova, C L Cazer, Y T Gröhn
Antimicrobial drugs are used to treat pathogenic bacterial infections in animals and humans. The by-stander enteric bacteria of the treated host's intestine can become exposed to the drug or its metabolites reaching the intestine in antimicrobially active form. We consider which processes and variables need to be accounted for to project the antimicrobial concentrations in the host's intestine. Those include: the drug's fraction (inclusive of any active metabolites) excreted in bile; the drug's fractions and intestinal segments of excretion via other mechanisms; the rates and intestinal segments of the drug's absorption and re-absorption; the rates and intestinal segments of the drug's abiotic and biotic degradation in the intestine; the digesta passage time through the intestinal segments; the rates, mechanisms, and reversibility of the drug's sorption to the digesta and enteric microbiome; and the volume of luminal contents in the intestinal segments...
July 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28436279/treatment-of-painful-radiculopathies-with-capsaicin-8-cutaneous-patch
#9
R Baron, R D Treede, F Birklein, T Cegla, R Freynhagen, M L Heskamp, K U Kern, C Maier, R Rolke, S Seddigh, C Sommer, S Ständer, C Maihöfner
BACKGROUND AND OBJECTIVE: The treatment of neuropathic pain due to low-back (lumbosacral) radiculopathies, a common source of neuropathic pain, is challenging and often requires a multimodal therapeutic approach. The capsaicin 8% patch is the first topical analgesic licensed for peripheral neuropathic pain. To evaluate this treatment, a subset of patients with painful radiculopathy (lumbar and cervical, including ventral and dorsal rami) enrolled into the multicenter, non-interventional QUEPP study (Qutenza (2) - safety and effectiveness in peripheral neuropathic pain) was analyzed...
May 4, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28224165/tailoring-the-cut-off-values-of-the-visual-analogue-scale-and-numeric-rating-scale-in-itch-assessment
#10
Adam Reich, Evangelos Chatzigeorkidis, Claudia Zeidler, Nani Osada, Masutaka Furue, Kenji Takamori, Toshiya Ebata, Matthias Augustin, Jacek C Szepietowski, Sonja Ständer
No abstract text is available yet for this article.
June 9, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28218838/design-and-synthesis-of-enantiomerically-pure-decahydroquinoxalines-as-potent-and-selective-%C3%AE%C2%BA-opioid-receptor-agonists-with-anti-inflammatory-activity-in-vivo
#11
Michael Soeberdt, Peter Molenveld, Roy P M Storcken, Renaud Bouzanne des Mazery, Geert Jan Sterk, Reshma Autar, Marjon G Bolster, Clemens Wagner, Sebastianus N H Aerts, Frank R van Holst, Anita Wegert, Giovanni Tangherlini, Bastian Frehland, Dirk Schepmann, Dieter Metze, Tobias Lotts, Ulrich Knie, Kun-Yuan Lin, Tai-Yu Huang, Chih-Ching Lai, Sonja Ständer, Bernhard Wünsch, Christoph Abels
In order to develop novel κ agonists restricted to the periphery, a diastereo- and enantioselective synthesis of (4aR,5S,8aS)-configured decahydroquinoxalines 5-8 was developed. Physicochemical and pharmacological properties were fine-tuned by structural modifications in the arylacetamide and amine part of the pharmacophore as well as in the amine part outside the pharmacophore. The decahydroquinoxalines 5-8 show single-digit nanomolar to subnanomolar κ-opioid receptor affinity, full κ agonistic activity in the [(35)S]GTPγS assay, and high selectivity over μ, δ, σ1, and σ2 receptors as well as the PCP binding site of the NMDA receptor...
March 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28178298/the-impact-of-prenatal-exposure-to-parasitic-infections-and-to-anthelminthic-treatment-on-antibody-responses-to-routine-immunisations-given-in-infancy-secondary-analysis-of-a-randomised-controlled-trial
#12
RANDOMIZED CONTROLLED TRIAL
Stephen Nash, Alexander J Mentzer, Swaib A Lule, Dennison Kizito, Gaby Smits, Fiona R M van der Klis, Alison M Elliott
BACKGROUND: Chronic parasitic infections are associated with active immunomodulation which may include by-stander effects on unrelated antigens. It has been suggested that pre-natal exposure to parasitic infections in the mother impacts immunological development in the fetus and hence the offspring's response to vaccines, and that control of parasitic infection among pregnant women will therefore be beneficial. METHODOLOGY/PRINCIPAL FINDINGS: We used new data from the Entebbe Mother and Baby Study, a trial of anthelminthic treatment during pregnancy conducted in Uganda, to further investigate this hypothesis...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28176340/evaluation-of-lymphocyte-transformation-tests-as-compared-with-patch-tests-in-nickel-allergy-diagnosis
#13
Sascha Ständer, Eva Oppel, Peter Thomas, Burkhard Summer
BACKGROUND: The patch test is considered to be the gold standard for diagnosing nickel (Ni) allergy. The lymphocyte transformation test (LTT) can also be used to detect Ni sensitization. However, little is known about the correlation between patch test and LTT reactions to Ni. OBJECTIVE: To establish and validate an LTT for Ni sensitization by comparison with patch test reaction and history. METHODS: Fifty individuals without self-reported 'Ni allergy' (controls) and 50 patients with self-reported suspicion of Ni allergy were included...
April 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/28129735/assessing-and-adjusting-for-non-response-in-the-millennium-cohort-family-study
#14
Nida H Corry, Christianna S Williams, Mike Battaglia, Hope Seib McMaster, Valerie A Stander
BACKGROUND: In conducting population-based surveys, it is important to thoroughly examine and adjust for potential non-response bias to improve the representativeness of the sample prior to conducting analyses of the data and reporting findings. This paper examines factors contributing to second stage survey non-response during the baseline data collection for the Millennium Cohort Family Study, a large longitudinal study of US service members and their spouses from all branches of the military...
January 28, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28074213/-intrahepatic-cholestasis-of-pregnancy-rare-but-important
#15
REVIEW
A E Kremer, K Wolf, S Ständer
Intrahepatic cholestasis of pregnancy (ICP) is a liver-specific disorder occurring in approximately 0.5-2.0% of all pregnancies with a considerable variation in certain ethnic groups. ICP usually runs a benign course for the mother and is characterized by maternal pruritus mainly in the third trimester, elevated transaminases and fasting total serum bile salts and increased fetal adverse events. The etiology of ICP is only partially understood but seems to be multifactorial. Cholestasis-inducing effects of certain female sex hormones and their metabolites play an important role in genetically susceptible women...
January 10, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28074212/-specific-dermatoses-of-pregnancy
#16
REVIEW
C M Ambros-Rudolph, M Sticherling
The specific dermatoses of pregnancy represent a heterogeneous group of inflammatory skin diseases related to pregnancy and/or the postpartum period. A clinically relevant classification has been well established over the past 10 years and includes pemphigoid gestationis, polymorphic eruption of pregnancy, intrahepatic cholestasis of pregnancy, and atopic eruption of pregnancy. The hallmark of all four entities is severe pruritus that is accompanied by characteristic skin changes. While some of these dermatoses are distressing only to the mother because of pruritus, others may be associated with significant fetal risks...
February 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28032455/in-silico-design-and-bioevaluation-of-selective-benzotriazepine-brd4-inhibitors-with-potent-antiosteoclastogenic-activity
#17
Vishwa Deepak, Binglin Wang, Dwayne Koot, Abe Kasonga, Xiao Xing Stander, Magdalena Coetzee, Andre Stander
The bromodomain (BRD) and extra-terminal domain (BET) protein family bind to acetylated histones on lysine residues and act as epigenetic readers. Recently, the role of this protein family in bone loss has been gaining attention. Earlier studies have reported that benzotriazepine (Bzt) derivatives could be effective inhibitors of BET proteins. In this study, using in silico tools we designed three Bzt analogs (W49, W51, and W52). By docking, molecular simulations, and chemiluminescent Alpha Screen binding assay, we show that the studied analogs were selective at inhibiting BRD4 when compared to BRD2...
December 29, 2016: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/27983744/itchapp%C3%A2-an-app-based-ediary-for-assessment-of-chronic-pruritus-in-clinical-trials
#18
Marvin Gernart, Athanasios Tsianakas, Claudia Zeidler, Claudia Riepe, Nani Osada, David Pihan, Sonja Ständer
Performing a reliable assessment of chronic pruritus remains a challenge. Electronic diaries are often used, but many of the scales have not been validated. ItchApp© was developed for Android smartphones in order to address this lack. A total of 40 subjects with chronic pruritus completed questionnaires both on paper and with ItchApp© (verbal rating scale, numerical rating scale, dynamic pruritus score) in order to validate the software application. Strong correlations were found for test-retest reliability (intraclass correlation coefficient: 0...
December 16, 2016: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/27983740/efficacy-of-body-lotion-containing-n-palmitoylethanolamine-in-subjects-with-chronic-pruritus-due-to-dry-skin-a-dermatocosmetic-study
#19
Katharina Visse, Christine Blome, Ngoc Quan Phan, Matthias Augustin, Sonja Ständer
No abstract text is available yet for this article.
May 8, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/27976275/pyrrolizidine-alkaloid-contamination-of-rooibos-tea-aspalathus-linearis
#20
B E Van Wyk, M A Stander, H S Long
No abstract text is available yet for this article.
December 2016: Planta Medica
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