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https://www.readbyqxmd.com/read/27934422/excited-states-of-triphenylamine-substituted-2-pyridyl-1-2-3-triazole-complexes
#1
Gregory S Huff, Warrick K C Lo, Raphael Horvath, Jack O Turner, Xue-Zhong Sun, Geoffrey R Weal, Hannah J Davidson, Aaron D W Kennedy, C John McAdam, James D Crowley, Michael W George, Keith C Gordon
A new 2-pyridyl-1,2,3-triazole (pytri) ligand, TPA-pytri, substituted with a triphenylamine (TPA) donor group on the 5 position of the pyridyl unit was synthesized and characterized. Dichloroplatinum(II), bis(phenylacetylide)platinum(II), bromotricarbonylrhenium(I), and bis(bipyridyl)ruthenium(II) complexes of this ligand were synthesized and compared to complexes of pytri ligands without the TPA substituent. The complexes of unsubstituted pytri ligands show metal-to-ligand charge-transfer (MLCT) absorption bands involving the pytri ligand in the near-UV region...
December 5, 2016: Inorganic Chemistry
https://www.readbyqxmd.com/read/27932976/melatonin-and-nitrones-as-potential-therapeutic-agents-for-stroke
#2
Alejandro Romero, Eva Ramos, Paloma Patiño, Maria J Oset-Gasque, Francisco López-Muñoz, José Marco-Contelles
Stroke is a disease of aging affecting millions of people worldwide, and recombinant tissue-type plasminogen activator (r-tPA) is the only treatment approved. However, r-tPA has a low therapeutic window and secondary effects which limit its beneficial outcome, urging thus the search for new more efficient therapies. Among them, neuroprotection based on melatonin or nitrones, as free radical traps, have arisen as drug candidates due to their strong antioxidant power. In this Perspective article, an update on the specific results of the melatonin and several new nitrones are presented...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27932958/the-shark-alar-hypothalamus-molecular-characterization-of-prosomeric-subdivisions-and-evolutionary-trends
#3
Gabriel N Santos-Durán, Susana Ferreiro-Galve, Arnaud Menuet, Idoia Quintana-Urzainqui, Sylvie Mazan, Isabel Rodríguez-Moldes, Eva Candal
The hypothalamus is an important physiologic center of the vertebrate brain involved in the elaboration of individual and species survival responses. To better understand the ancestral organization of the alar hypothalamus we revisit previous data on ScOtp, ScDlx2/5, ScTbr1, ScNkx2.1 expression and Pax6 immunoreactivity jointly with new data on ScNeurog2, ScLhx9, ScLhx5, and ScNkx2.8 expression, in addition to immunoreactivity to serotonin (5-HT) and doublecortin (DCX) in the catshark Scyliorhinus canicula, a key species for this purpose since cartilaginous fishes are basal representatives of gnathostomes (jawed vertebrates)...
2016: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/27931797/erbb2-is-essential-for-the-growth-of-chemically-induced-skin-tumors-in-mice
#4
Maik Dahlhoff, Sukalp Muzumdar, Matthias Schäfer, Marlon R Schneider
While the epidermal growth factor receptor has established roles in skin carcinogenesis, inflammation, and wound healing, the functions of the structurally related receptor ERBB2 in this tissue remain poorly explored. To assess the functions of ERBB2 in skin homeostasis, tumorigenesis, and wound healing we employed keratin 5-directed, cre recombinase-mediated targeting of Erbb2 alleles in mice. Erbb2(del) mice, lacking ERBB2 specifically in keratinocytes, showed no noticeable spontaneous skin abnormalities...
December 5, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27928560/a-novel-electron-acceptor-moiety-as-a-building-block-for-efficient-donor-acceptor-based-fluorescent-organic-lighting-emitting-diodes
#5
Miao-Miao Xue, Chen-Chao Huang, Yi Yuan, Ye-Xin Zhang, Man-Keung Fung, Liang-Sheng Liao
A new electron-withdrawing moiety (BFPz) has been used for the first time as an acceptor in OLEDs and its corresponding core unit (2-Br-BFPz) was synthesized. Combined with an electron-donating moiety triphenylamine, a novel fluorescent material with a D-A structure named TPA-BFPz was synthesized. Encouragingly, the EQE values of non-doped and doped blue OLEDs reach 3.68% and 4.42%, respectively.
December 8, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27927506/correction-of-pelvic-obliquity-after-spinopelvic-fixation-in-children-with-cerebral-palsy-a-comparison-study-with-minimum-two-year-follow-up
#6
Oussama Abousamra, Tristan Nishnianidze, Kenneth J Rogers, Ilhan A Bayhan, Petya Yorgova, Suken A Shah
STUDY DESIGN: Single institution cohort data were collected prospectively and reviewed retrospectively. OBJECTIVES: This study aims to compare outcomes among three different instrumentation types: unit rod, iliac screws, and sacral alar iliac (SAI) screws in terms of pelvic obliquity correction in children with cerebral palsy (CP). SUMMARY OF BACKGROUND DATA: The optimal choice for spinopelvic fixation in CP scoliosis with pelvic obliquity is controversial...
May 2016: Spine Deformity
https://www.readbyqxmd.com/read/27918528/origin-of-modern-syphilis-and-emergence-of-a-pandemic-treponema-pallidum-cluster
#7
Natasha Arora, Verena J Schuenemann, Günter Jäger, Alexander Peltzer, Alexander Seitz, Alexander Herbig, Michal Strouhal, Linda Grillová, Leonor Sánchez-Busó, Denise Kühnert, Kirsten I Bos, Leyla Rivero Davis, Lenka Mikalová, Sylvia Bruisten, Peter Komericki, Patrick French, Paul R Grant, María A Pando, Lucía Gallo Vaulet, Marcelo Rodríguez Fermepin, Antonio Martinez, Arturo Centurion Lara, Lorenzo Giacani, Steven J Norris, David Šmajs, Philipp P Bosshard, Fernando González-Candelas, Kay Nieselt, Johannes Krause, Homayoun C Bagheri
The abrupt onslaught of the syphilis pandemic that started in the late fifteenth century established this devastating infectious disease as one of the most feared in human history(1). Surprisingly, despite the availability of effective antibiotic treatment since the mid-twentieth century, this bacterial infection, which is caused by Treponema pallidum subsp. pallidum (TPA), has been re-emerging globally in the last few decades with an estimated 10.6 million cases in 2008 (ref. 2). Although resistance to penicillin has not yet been identified, an increasing number of strains fail to respond to the second-line antibiotic azithromycin(3)...
December 5, 2016: Nature Microbiology
https://www.readbyqxmd.com/read/27913263/experience-with-adapt-for-thrombectomy-in-distal-cerebral-artery-occlusions-causing-acute-ischemic-stroke
#8
Jan Vargas, Alex M Spiotta, Kyle Fargen, Raymond D Turner, Imran Chaudry, Aquilla Turk
BACKGROUND: Thromboembolic occlusion of distal branches in anterior and posterior circulation may produce severe clinical deficits. The ADAPT technique is a simple, fast method for achieving good angiographic and clinical outcomes using large bore catheters in large vessel occlusions. OBJECTIVE: We present our results using the ADAPT technique with distal cerebral artery occlusions. METHODS: Thirty-five patients with acute ischemic stroke with thrombus in the distal MCA, ACA, or PCA were treated with the ADAPT technique...
November 29, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27910921/bipolar-and-unipolar-silylene-diphenylene-%C3%AF-%C3%AF-conjugated-polymer-route-for-highly-efficient-electrophosphorescence
#9
Yao-Tang Chang, Sunil Sharma, Miao-Ken Hung, Yu-Hsuan Lee, Show-An Chen
σ-π conjugated polymer strategy is proposed for designing electroluminescent host polymers with silylene-diphenylene as the backbone repeat unit giving a high triplet energy (ET = 2.67 eV). By incorporation of high ET (3.0 eV) electron (oxadiazole, OXD) and hole (triphenyl amine, TPA) transport moieties, or TPA alone (in this case, the main chain acts as electron transport channel) as side arms on the silylene, the high ET bipolar and unipolar polymers are formed, allowing a use of iridium green phosphor (Ir(ppy)2(acac), Ir-G) (ET = 2...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27903349/-diagnosis-and-treatment-of-tuberculous-primary-psoas-abscess
#10
Maimaiti Fulati, T Xu, Niyazi Maimaitiaili, Maimaiti Maierdan, H L Guo, C H Xun, B C Wang, W B Sheng
Objective: To retrospective analysis the clinical characteristics of diagnosis and treatment the disease of tuberculous psoas abscess (TPA). Method: The medical records of 13 consecutive patients presenting to our hospital with TPA were reviewed from November 2002 to December 2015.Demographic data, presenting features, predisposing factors and the investigations performed were recorded and the outcomes were analysed. Results: The thirteen patients were included, 11 cases all had lower backache, 6 cases had Lower abdomen or groin area pain, 2 cases had fever, eleven cases were treated with Open drainage, one with Ultrasound guided drainage, and the last case used antibiotics alone, median hospital stay of 35 days, follow-up showed no recurrence or death in patients...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27899777/-physical-activity-in-patients-with-gastrointestinal-cancer-undergoing-outpatient-chemotherapy
#11
Megumi Iwakoshi, Tetsuya Tsuji, Hiromasa Takaishi, Yasuo Hamamoto, Tsunehiro Takahashi, Takashi Endo, Yuko Kitagawa, Meigen Liu
PURPOSE: To determine factors affecting physical activity in outpatients with gastrointestinal cancer. METHODS: This observational study applied the International Physical Activity Questionnaire(IPAQ)to identify factors affecting physical activity in outpatients(male, n=51; female, n=24; mean age, 64.2±10.2 years)with gastrointestinal cancer undergoing chemotherapy. Relationships between the main outcome measures, total weekly physical activity score(TPA)and total weekly energy expenditure(TEE), and patient background factors were analyzed...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/27895288/some-biological-activities-of-pigments-extracted-from-micrococcus-roseus-ptcc-1411-and-rhodotorula-glutinis-ptcc-5257
#12
Hossein Rostami, Hassan Hamedi, Mahmoud Yolmeh
The importance of replacing synthetic pigments with natural types is increasing day by day in the food industry due to the harmful effects of some synthetic pigments. Microorganisms are a major source of natural pigments, which nowadays have attracted the attention of researchers. In this study, carotenoid pigments were produced by Micrococcus roseus and Rhodotorula glutinis, and some of their biological properties such as antimicrobial, antioxidant, anticancer, and anti-inflammatory activities were evaluated...
December 2016: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/27894313/identifying-the-barriers-and-enablers-for-a-triage-treatment-and-transfer-clinical-intervention-to-manage-acute-stroke-patients-in-the-emergency-department-a-systematic-review-using-the-theoretical-domains-framework-tdf
#13
REVIEW
Louise E Craig, Elizabeth McInnes, Natalie Taylor, Rohan Grimley, Dominique A Cadilhac, Julie Considine, Sandy Middleton
BACKGROUND: Clinical guidelines recommend that assessment and management of patients with stroke commences early including in emergency departments (ED). To inform the development of an implementation intervention targeted in ED, we conducted a systematic review of qualitative and quantitative studies to identify relevant barriers and enablers to six key clinical behaviours in acute stroke care: appropriate triage, thrombolysis administration, monitoring and management of temperature, blood glucose levels, and of swallowing difficulties and transfer of stroke patients in ED...
November 28, 2016: Implementation Science: IS
https://www.readbyqxmd.com/read/27889672/spectroscopic-investigation-and-direct-comparison-of-the-reactivities-of-iron-pyridyl-oxidation-catalysts
#14
Yang Song, Howard G Mayes, Matthew J Queensen, Eike B Bauer, Cynthia M Dupureur
The growing interest in green chemistry has fueled attention to the development and characterization of effective iron complex oxidation catalysts. A number of iron complexes are known to catalyze the oxidation of organic substrates utilizing peroxides as the oxidant. Their development is complicated by a lack of direct comparison of the reactivities of the iron complexes. To begin to correlate reactivity with structural elements, we compare the reactivities of a series of iron pyridyl complexes toward a single dye substrate, malachite green (MG), for which colorless oxidation products are established...
November 19, 2016: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/27888208/double-trouble-tpa-induced-angioedema
#15
Balaji Krishnaiah, Daniel McLaughlin, Jennifer Lee, David Good
No abstract text is available yet for this article.
November 25, 2016: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/27887792/edaravone-with-and-without-6%C3%A2-mg-kg-alteplase-within-4-5-hours-after-ischemic-stroke-a-prospective-cohort-study-protect4-5
#16
Takenori Yamaguchi, Hideto Awano, Hiroaki Matsuda, Norio Tanahashi
BACKGROUND: Edaravone is widely used to treat acute ischemic stroke (AIS) within 24 hours of onset. We aimed to evaluate current edaravone treatment practices and the efficacy and safety of edaravone used with recombinant tissue plasminogen activator (tPA) in AIS patients within 4.5 hours of onset. The results were compared with those of the Safe Implementation of Treatments in Stroke-International Stroke Thrombolysis Registry (SITS-ISTR) study. METHODS: PROTECT4...
November 22, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27881952/tissue-type-plasminogen-activator-tpa-modulates-the-postsynaptic-response-of-cerebral-cortical-neurons-to-the-presynaptic-release-of-glutamate
#17
Valerie Jeanneret, Fang Wu, Paola Merino, Enrique Torre, Ariel Diaz, Lihong Cheng, Manuel Yepes
Tissue-type plasminogen activator (tPA) is a serine proteinase released by the presynaptic terminal of cerebral cortical neurons following membrane depolarization (Echeverry et al., 2010). Recent studies indicate that the release of tPA triggers the synaptic vesicle cycle and promotes the exocytosis (Wu et al., 2015) and endocytic retrieval (Yepes et al., 2016) of glutamate-containing synaptic vesicles. Here we used electron microscopy, proteomics, quantitative phosphoproteomics, biochemical analyses with extracts of the postsynaptic density (PSD), and an animal model of cerebral ischemia with mice overexpressing neuronal tPA to study whether the presynaptic release of tPA also has an effect on the postsynaptic terminal...
2016: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/27880883/anti-proliferative-and-anti-inflammatory-effects-of-3%C3%AE-6%C3%AE-16%C3%AE-trihydroxylup-20-29-ene-on-cutaneous-inflammation
#18
Cintia Delai da Silva Horinouchi, Daniel Augusto Gasparin Bueno Mendes, Stefanie Nolte, Priscilla Salles de Brito, Bruna da Silva Soley, Giovani Marino Favero, Valdir Alves Facundo, Adair Roberto Soares Santos, Daniela de Almeida Cabrini, Michel Fleith Otuki
ETHNOPHARMACOLOGICAL RELEVANCE: 3β,6β,16β-Trihydroxylup-20(29)-ene (TTHL) is a triterpene isolated from the flowers of Combretum leprosum, a plant used in folk medicine in the north of Brazil for the treatment of skin disorders. AIM OF THE STUDY: In the present study, TTHL was evaluated as a potential topical anti-inflammatory and anti-proliferative agent through in vivo and in vitro models. MATERIAL AND METHODS: Anti-inflammmatory and anti-proliferative effects of TTHL were assessed using Swiss mice in acute and chronic models of skin inflammation induced by 12-O-tetradecanoylphorbol-acetate (TPA) application...
November 20, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27878789/regional-sociocultural-differences-as-important-correlate-of-physical-activity-and-sedentary-behaviour-in-swiss-preschool-children
#19
Claudia S Leeger-Aschmann, Einat A Schmutz, Thomas Radtke, Tanja H Kakebeeke, Annina E Zysset, Nadine Messerli-Bürgy, Kerstin Stülb, Amar Arhab, Andrea H Meyer, Simone Munsch, Oskar G Jenni, Jardena J Puder, Susi Kriemler
QUESTION: Regional differences in physical activity in school-aged children and adults even within one country with the same political and health care system have been observed and could not be explained by sociodemographic or individual variables. We analysed whether such differences were already present in preschool children. METHODS: Swiss children from 84 childcare centres in five cantons (Aargau, Bern, Fribourg, Vaud, Zurich) comprising about 50% of the population of the country participated...
2016: Swiss Medical Weekly
https://www.readbyqxmd.com/read/27876785/characterization-of-the-annonaceous-acetogenin-annonacinone-a-natural-product-inhibitor-of-plasminogen-activator-inhibitor-1
#20
Stéphane Pautus, Mouad Alami, Fréderic Adam, Guillaume Bernadat, Daniel A Lawrence, Allan De Carvalho, Gilles Ferry, Alain Rupin, Abdallah Hamze, Pierre Champy, Natacha Bonneau, Philippe Gloanec, Jean-Louis Peglion, Jean-Daniel Brion, Elsa P Bianchini, Delphine Borgel
Plasminogen activator inhibitor-1 (PAI-1) is the main inhibitor of the tissue type and urokinase type plasminogen activators. High levels of PAI-1 are correlated with an increased risk of thrombotic events and several other pathologies. Despite several compounds with in vitro activity being developed, none of them are currently in clinical use. In this study, we evaluated a novel PAI-1 inhibitor, annonacinone, a natural product from the Annonaceous acetogenins group. Annonacinone was identified in a chromogenic screening assay and was more potent than tiplaxtinin...
November 23, 2016: Scientific Reports
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