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https://www.readbyqxmd.com/read/29668126/an-unconventional-polymerization-route-to-hydrophilic-fluorescent-organic-nanoparticles-for-multicolor-cellular-bioimaging
#1
Qingfu Ban, Jie Kong, Yinglai Hou, Jianxin Chen, Wen Sun, Xiaofei Zhang, Si Wu
We demonstrated an unconventional polymerization route to synthesize hydrophilic fluorescent organic nanoparticles (FONs) for multicolor cellular bioimaging in this contribution. Actually, it benefits from our unexpected discovery of a rapid polymerization reaction between 1, 6-hexanediol dipropiolate and 2, 4, 6-triazide-1, 3, 5-triazine under the catalysis of N, N, N', N", N"-pentamethyldiethylenetriamine (PMDETA). Interestingly, the 2, 4, 6-triazide-1, 3, 5-triazine and PMDETA system can also induce rapid free radical polymerization at room temperature...
April 18, 2018: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/29668120/cytomegalovirus-infection-in-living-donor-liver-transplant-recipients-significantly-impacts-the-early-post-transplant-outcome-a-single-center-experience
#2
Sanjay Kumar Yadav, Sanjiv Saigal, Narendra Singh Choudhary, Sujeet Saha, Jayant Kumar Sah, Neeraj Saraf, Naveen Kumar, Sanjay Goja, Amit Rastogi, Prashant Bhangui, A S Soin
BACKGROUND: Cytomegalovirus (CMV) is the most common viral infection in liver transplant recipients that influences the outcomes of liver transplantation. However, its impact on early outcomes following living donor liver transplantation (LDLT) is not fully defined in the Indian subcontinent. This study was done to assess the impact of CMV infection on early post-transplant outcomes in LDLT recipients. METHODS: Out of 272 LDLTs performed from January 2012 to April 2013, 151 recipients underwent CMV viral load analysis in plasma within 90 days post LDLT based on clinical suspicion...
April 18, 2018: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29668119/n-heterocyclic-carbene-analogues-of-thiele-and-chichibabin-hydrocarbons
#3
Dennis Rottschäfer, Nga Kim T Ho, Beate Neumann, Hans-Georg Stammler, Maurice van Gastel, Diego M Andrada, Rajendra S Ghadwal
Stable N-heterocyclic carbene analogues of Thiele and Chichibabin hydrocarbons, [(IPr)(C6 H4 )(IPr)] and [(IPr)(C6 H4 )2 (IPr)] (4 and 5, respectively; IPr=C{N(2,6-iPr2 C6 H3 )}2 CHCH), are reported. In a nickel-catalyzed double carbenylation of 1,4-Br2 C6 H4 and 4,4'-Br2 (C6 H4 )2 with IPr (1), [(IPr)(C6 H4 )(IPr)](Br)2 (2) and [(IPr)(C6 H4 )2 (IPr)](Br)2 (3) were generated, which respectively afforded 4 and 5 as crystalline solids upon reduction with KC8 . Experimental and computational studies support the semiquinoidal nature of 5 with a small singlet-triplet energy gap ΔES-T of 10...
April 18, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29668114/-%C3%AE-2-adrenoceptors-inhibit-neutrophil-extracellular-traps-in-human-polymorphonuclear-leukocytes
#4
Franca Marino, Angela Scanzano, Laura Pulze, Monica Pinoli, Emanuela Rasini, Alessandra Luini, Raffaella Bombelli, Massimiliano Legnaro, Magda de Eguileor, Marco Cosentino
This study tests the hypothesis that in isolated human polymorphonuclear leukocytes (PMN) adrenergic ligands can affect neutrophil extracellular trap (NET) formation. We have previously shown that, in PMN, adrenaline (A), through the activation of adrenergic receptors (AR), reduces stimulus-dependent cell activation; we have, therefore, planned to investigate if AR are involved in NET production. PMN were obtained from venous blood of healthy subject. The ability of adrenergic ligands to affect reactive oxygen species (ROS) production, NET production, and cell migration was investigated in cells cultured under resting conditions or after activation with N-formyl-methionyl-leucyl-phenylalanine (fMLP), LPS, or IL-8...
April 18, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29668113/molecular-dynamics-analysis-of-charge-transport-in-ionic-liquid-electrolytes-containing-added-salt-with-mono-di-and-trivalent-metal-cations
#5
José Manuel Vicent-Luna, Eneko Azaceta, Said Hamad, José Manuel Ortiz-Roldán, Ramón Tena-Zaera, Sofía Calero, Juan Antonio Anta
Among many other applications, room-temperature ionic liquids (ILs) are used as electrolytes for storage and energy-conversion devices. In this work, we investigate, at the microscopic level, the structural and dynamical properties of 1-methyl-1-butyl-pyrrolidinium bis(trifluoromethanesulfonyl) imide [C4 PYR]+ [Tf2 N]- IL-based electrolytes for metal-ion batteries. We carried out molecular dynamics simulations of electrolytes mainly composed of [C4 PYR]+ [Tf2 N]- IL with the addition of Mn+ -[Tf2 N]- metal salts (M=Li+ , Na+ , Ni2+ , Zn2+ , Co2+ , Cd2+ , and Al3+ , n=1, 2, and 3) dissolved in the IL...
April 18, 2018: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29668112/pharmacogenetic-manipulation-of-the-nucleus-accumbens-alters-binge-like-alcohol-drinking-in-mice
#6
Kush Purohit, Puja K Parekh, Joseph Kern, Ryan W Logan, Zheng Liu, Yanhua Huang, Colleen A McClung, John C Crabbe, Angela R Ozburn
BACKGROUND: Chronic alcohol intake leads to long-lasting changes in reward- and stress-related neuronal circuitry. The nucleus accumbens (NAc) is an integral component of this circuitry. Here, we investigate the effects of DREADDs (Designer Receptors Exclusively Activated by Designer Drugs) on neuronal activity in the NAc and binge-like drinking. METHODS: C57BL/6J mice were stereotaxically injected with AAV2 hSyn-HA hM3Dq, -hM4Di, or -eGFP bilaterally into NAc [core + shell, core or shell]...
April 18, 2018: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29668110/phenylbutyl-isoselenocyanate-induces-reactive-oxygen-species-to-inhibit-androgen-receptor-and-to-initiate-p53-mediated-apoptosis-in-lncap-prostate-cancer-cells
#7
Wei Wu, Deepkamal Karelia, Kartick Pramanik, Shantu G Amin, Arun K Sharma, Cheng Jiang, Junxuan Lu
Previous studies have established the in vivo bioavailability and efficacious dosages of phenylbutyl isoselenocyanate (ISC-4), a selenium-substituted isothiocyanate, against mouse xenograft models of human melanoma and colorectal cancer. To explore its potential attributes against prostate cancer, we treated human LNCaP prostate cancer cells with ISC-4 and examined their apoptosis responses, and interrogated the signaling mechanisms through pharmacological and siRNA knockdown approaches. Our results show that ISC-4 was more potent at inducing apoptosis than its sulfur analog phenylbutyl isothiocyanate (PBITC) without suppressing protein kinase AKT Ser473 phosphorylation...
April 18, 2018: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29668082/altered-stress-hormone-response-following-acute-exercise-during-prostate-cancer-treatment
#8
Erik D Hanson, Samy Sakkal, William S Evans, John A Violet, Claudio L Battaglini, Glenn K McConell, Alan Hayes
Exercise training reduces the side effects of cancer treatments, however, the stress hormone response to acute exercise during prostate cancer (PCa) treatment is unclear. PURPOSE: To examine the effects of acute exercise on circulating cortisol, epinephrine (Epi), and norepinephrine (NE) concentrations during PCa treatment with and without androgen deprivation therapy (ADT). METHODS: Men with PCa (n=11), with PCa on ADT (n=11) and non-cancer controls (n=8) had blood samples for stress hormones collected before and immediately (0h), 2h, and 24h after 45 minutes of intermittent cycling at 60% of peak wattage...
April 18, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29668079/co-culture-of-adipose-derived-stem-cells-and-chondrocytes-on-three-dimensionally-printed-bioscaffolds-for-craniofacial-cartilage-engineering
#9
Robert J Morrison, Hassan B Nasser, Khaled N Kashlan, David A Zopf, Derek J Milner, Colleen L Flanangan, Matthew B Wheeler, Glenn E Green, Scott J Hollister
OBJECTIVES/HYPOTHESIS: Reconstruction of craniofacial cartilagenous defects are among the most challenging surgical procedures in facial plastic surgery. Bioengineered craniofacial cartilage holds immense potential to surpass current reconstructive options, but limitations to clinical translation exist. We endeavored to determine the viability of utilizing adipose-derived stem cell-chondrocyte co-culture and three-dimensional (3D) printing to produce 3D bioscaffolds for cartilage tissue engineering...
April 18, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29668073/sequential-systematic-anti-mold-prophylaxis-with-micafungin-and-voriconazole-results-in-very-low-incidence-of-invasive-mold-infections-in-patients-undergoing-allogeneic-hematopoietic-stem-cell-transplantation
#10
Claudia Rosillo, Ana Maria Avila, Yao-Ting Huang, Sean Devlin, Christina Cho, Juan Montoro, Molly A Maloy, Genovefa A Papanicolaou, Pere Barba, Miguel-Angel Perales
BACKGROUND AND OBJECTIVES: Recipients of allogeneic hematopoietic stem cell transplantation (allo-HSCT) are at high risk for invasive mold infections (IMI). The goal of the study is to describe the incidence and outcome of IMI in patients after allo-HSCT in a large cohort of patients receiving anti-mold prophylaxis. METHODS: We conducted a retrospective review of 988 consecutive adults who underwent allo-HSCT in our center from 2008 through 2014. Standard prophylaxis consisted of micafungin 150mg IV daily from admission to day +7 +/- 3 followed by voriconazole until day +75 to +100...
April 18, 2018: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29668072/a-unique-telomere-dna-expansion-phenotype-in-human-retinal-rod-photoreceptors-associated-with-aging-and-disease
#11
W Robert Bell, Alan K Meeker, Anthony Rizzo, Sumit Rajpara, Ian M Rosenthal, Miguel Flores Bellver, Silvia Aparicio Domingo, Xiufeng Zhong, John R Barber, Corinne E Joshu, M Valeria Canto-Soler, Charles G Eberhart, Christopher M Heaphy
We have identified a discrete, focal telomere DNA expansion phenotype in the photoreceptor cell layer of normal, non-neoplastic human retinas. This phenotype is similar to that observed in a subset of human cancers, including a large fraction of tumors of the central nervous system, which maintain their telomeres via the non-telomerase-mediated alternative lengthening of telomeres (ALT) mechanism. We observed that these large, ultra-bright telomere DNA foci are restricted to the rod photoreceptors and are not observed in other cell types...
April 18, 2018: Brain Pathology
https://www.readbyqxmd.com/read/29668070/physical-activity-and-sedentary-behaviour-in-a-flexible-office-based-workplace-employee-perceptions-and-priorities-for-change
#12
Heidi M Olsen, Wendy J Brown, Tracy Kolbe-Alexander, Nicola W Burton
ISSUE ADDRESSED: Many Australian employees now regularly work from home in some capacity. This new way of working has not been widely studied in relation to the potential implications for employees' health-related behaviour or workplace health promotion. The aim of this study was to explore office-based employees' perceptions of the impact of flexible work on physical activity and sedentary behaviour; and preferences for associated interventions. METHODS: Three focus groups were conducted with office-based employees (n=28) six months after the introduction of a flexible work policy...
April 18, 2018: Health Promotion Journal of Australia
https://www.readbyqxmd.com/read/29668068/epidemiology-risk-factors-and-outcomes-of-invasive-aspergillosis-in-solid-organ-transplant-recipients-in-the-swiss-transplant-cohort-study
#13
D Neofytos, O Chatzis, D Nasioudis, E Boely Janke, T Doco Lecompte, C Garzoni, C Berger, A Cussini, K Boggian, N Khanna, O Manuel, N J Mueller, C van Delden
BACKGROUND: There is lack of recent multicenter epidemiological data on invasive aspergillosis (IA) among solid organ transplant recipient (SOTr) in the mold-acting antifungal era. We describe the epidemiology and outcomes of IA in a contemporary cohort of SOTr using the Swiss Transplant Cohort Study. METHODS: All consecutive SOTr with proven or probable IA between 01.05.2008 and 31.12.2014 were included. A case-control study to identify IA predictors was performed: 1-case was matched with 3-controls based on SOT type, transplant center, and time post-SOT...
April 18, 2018: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29668062/long-term-outcomes-and-molecular-analysis-of-a-large-cohort-of-patients-with-46-xy-disorder-of-sex-development-due-to-partial-gonadal-dysgenesis
#14
Nathalia Lisboa Gomes, Antônio Marcondes Lerário, Aline Machado Zamboni, Daniela Rodrigues de Moraes, Thatiana Evilen da Silva, Ivo Jorge Prado Arnhold, Rafael Loch Batista, José Antônio Diniz Faria Júnior, Elaine F Costa, Mirian Y Nishi, Marlene Inacio, Sorahia Domenice, Berenice B Mendonca
BACKGROUND: Follow-up data on patients with 46,XY partial gonadal dysgenesis (PGD) until adulthood are scarce, making information on prognosis difficult. OBJECTIVE: To analyse the long-term outcomes of patients with 46,XY PGD regarding testosterone production, germ cell tumour risk, genotype, and psychosexual adaptation. METHODS: A retrospective longitudinal study of 33 patients (20 assigned male and 13 patients assigned female at birth). Molecular diagnosis was performed by Sanger sequencing or by targeted massively parallel sequencing of 63 genes related to disorders of sex development (DSDs)...
April 18, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29668046/black-cohosh-extracts-and-powders-induce-micronuclei-a-biomarker-of-genetic-damage-in-human-cells
#15
Stephanie L Smith-Roe, Carol D Swartz, Kim G Shepard, Steven M Bryce, Stephen D Dertinger, Suramya Waidyanatha, Grace E Kissling, Scott S Auerbach, Kristine L Witt
Black cohosh extract (BCE) is a widely used dietary supplement marketed to women to alleviate symptoms of gynecological ailments, yet its toxicity has not been well characterized. The National Toxicology Program (NTP) previously reported significant increases in micronucleated erythrocytes in peripheral blood of female Wistar Han rats and B6C3F1/N mice administered 15-1,000 mg BCE/kg/day by gavage for 90 days. These animals also developed a dose-dependent nonregenerative macrocytic anemia characterized by clinical changes consistent with megaloblastic anemia...
April 18, 2018: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/29668045/when-does-the-influence-of-maturation-on-anthropometric-and-physical-fitness-characteristics-increase-and-subside
#16
Christopher Towlson, Stephen Cobley, Guy Parkin, Ric Lovell
The relationships between maturation and anthropometric and physical performance characteristics are dynamic and often asynchronous; confounding the capability to accurately evaluate performance during adolescence. This study aimed to (i) examine the influence of chronological age (CA) and somatic maturation (YPHV) upon anthropometric and physical performance parameters, and (ii) identify the transition/change time-points in these relationships using segmental regression. N=969 soccer players (8-18 years of age) completed anthropometric and physical test assessments, including a counter-movement jump (CMJ), agility T-test, 10 and 20m sprints, and multi-stage fitness test (MSFT)...
April 18, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29668044/impairments-in-hemodynamic-responses-to-orthostasis-associated-with-frailty-results-from-the-irish-longitudinal-study-on-ageing-tilda
#17
Matthew Dl O'Connell, George M Savva, Ciarán Finucane, Roman Romero-Ortuno, Chie Wei Fan, Rose Anne Kenny
OBJECTIVES: To characterize the relationships between orthostatic blood pressure (BP) and heart rate recovery and frailty in an older population. DESIGN: Cross-sectional study. SETTING: Two health centers in the Republic of Ireland. PARTICIPANTS: The Irish Longitudinal Study on Ageing participants aged 50 and older (N=4,334). MEASUREMENTS: Continuous noninvasive BP responses during active standing were captured using digital photoplethysmography...
April 18, 2018: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/29668043/folate-deficiency-increases-chromosomal-damage-and-mutations-in-hematopoietic-cells-in-the-transgenic-mutamouse-model
#18
Danielle P LeBlanc, Nathalie A Behan, Jason M O'Brien, Francesco Marchetti, Amanda J MacFarlane
Folate deficiency causes megaloblastic anemia and neural tube defects, and is also associated with some cancers. In vitro, folate deficiency increases mutation frequency and genome instability, as well as exacerbates the mutagenic potential of known environmental mutagens. Conversely, it remains unclear whether or not elevated folic acid (FA) intakes are beneficial or detrimental to the induction of DNA mutations and by proxy human health. We used the MutaMouse transgenic model to examine the in vivo effects of FA deficient, control, and supplemented diets on somatic DNA mutant frequency (MF) and genome instability in hematopoietic cells...
April 18, 2018: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/29668041/warming-intensify-co-2-flux-and-nutrient-release-from-algal-wrack-subsidies-on-sandy-beaches
#19
M Lastra, J López, I F Rodil
Algal wrack subsidies underpin most of the food web structure of exposed sandy beaches, and are responsible of important biogeochemical processes that link marine and terrestrial ecosystems. The response in decomposition of algal wrack deposits to global warming has not been studied in ocean exposed sandy beaches to date. With this aim, passive open top chambers (OTCs) were used to increase soil temperature within the range predicted by the IPCC for western Europe (between 0.5 and 1.5 °C), following the hypothesis that the biogeochemical processing of macroalgal wrack subsidies would accelerate in response to temperature increase...
April 18, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29668028/reallocating-time-between-sleep-sedentary-and-active-behaviours-associations-with-obesity-and-health-in-canadian-adults
#20
Rachel C Colley, Isabelle Michaud, Didier Garriguet
BACKGROUND: Moderate-to-vigorous physical activity (MVPA) and sleep are positively associated with adults' health, while the association with sedentary behaviour (SED) is negative. Light-intensity physical activity (LPA) is emerging as an independent predictor of improved cardiovascular health. The health impacts of each of these factors have been examined in isolation, but interest has increased in associations between health and movement behaviours collectively. DATA AND METHODS: This analysis examines how reallocating time between movement behaviours is associated with obesity and with self-rated general and mental health...
April 18, 2018: Health Reports
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