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https://www.readbyqxmd.com/read/29351867/electrosynthesized-mips-for-transferrin-plastibodies-or-nano-filters
#1
Xiaorong Zhang, Aysu Yarman, Júlia Erdossy, Sagie Katz, Ingo Zebger, Katharina J Jetzschmann, Zeynep Altintas, Ulla Wollenberger, Róbert E Gyurcsányi, Frieder W Scheller
Molecularly imprinted polymer (MIP) nanofilms for transferrin (Trf) have been synthesized on gold surfaces by electro-polymerizing the functional monomer scopoletin in the presence of the protein target or around pre-adsorbed Trf. As determined by atomic force microscopy (AFM) the film thickness was comparable with the molecular dimension of the target. The target (re)binding properties of the electro-synthesized MIP films was evaluated by cyclic voltammetry (CV) and square wave voltammetry (SWV) through the target-binding induced permeability changes of the MIP nanofilms to the ferricyanide redox marker, as well as by surface plasmon resonance (SPR) and surface enhanced infrared absorption spectroscopy (SEIRAS) of the immobilized protein molecules...
January 9, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29351206/antibody-biomimetic-material-made-of-pyrrole-for-ca-15-3-and-its-application-as-sensing-material-in-ion-selective-electrodes-for-potentiometric-detection
#2
Alexandra R T Santos, Felismina T C Moreira, Luísa A Helguero, M Goreti F Sales
This work reports a very simple approach for creating a synthetic antibody against any protein of interest and its application in potentiometric transduction. The selected protein was Breast Cancer Antigen (CA 15-3), which is implicated in breast cancer disease and used to follow-up breast cancer patients during treatment. The new material with antibody-like properties was obtained by molecular-imprinting technology, prepared by electropolymerizing pyrrol (Py, 5.0 × 10-3 mol/L) around Breast Cancer Antigen (CA 15-3) (100 U/mL) on a fluorine doped tin oxide (FTO) conductive glass support...
January 19, 2018: Biosensors
https://www.readbyqxmd.com/read/29349585/molecularly-imprinted-core-shell-cdse-sio2-cds-as-a-ratiometric-fluorescent-probe-for-4-nitrophenol-sensing
#3
Mingyue Liu, Zhao Gao, Yanjun Yu, Rongxin Su, Renliang Huang, Wei Qi, Zhimin He
4-Nitrophenol (4-NP) is a priority pollutant in water and is both carcinogenic and genotoxic to humans and wildlife even at very low concentrations. Thus, we herein fabricated a novel molecularly imprinted core-shell nanohybrid as a ratiometric fluorescent sensor for the highly sensitive and selective detection of 4-NP. This sensor was functioned by the transfer of fluorescence resonance energy between photoluminescent carbon dots (CDs) and 4-NP. This sensor was synthesized by linking organosilane-functionalized CDs to silica-coated CdSe quantum dots (CdSe@SiO2) via Si-O bonds...
January 18, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29344006/histone-deacetylase-2-hdac2-attenuates-lipopolysaccharide-lps-induced-inflammation-by-regulating-pai-1-expression
#4
Wen-Feng Fang, Yu-Mu Chen, Chiung-Yu Lin, Hui-Lin Huang, Hua Yeh, Ya-Ting Chang, Kuo-Tung Huang, Meng-Chih Lin
Background: Sepsis is a life-threatening organ dysfunction caused by dysregulated host response to infection, and is primarily characterized by an uncontrolled systemic inflammatory response. In the present study, we developed an effective adjunct therapy mediated by a novel mechanism, to attenuate overt inflammation. LPS-treated macrophages were adopted as an in vitro model of endotoxin-induced inflammation during sepsis. Experiments were carried out using primary mouse peritoneal macrophages and the murine macrophage cell line RAW264...
2018: Journal of Inflammation
https://www.readbyqxmd.com/read/29342870/biomarkers-of-progression-after-hiv-acute-early-infection-nothing-compares-to-cd4%C3%A2-%C2%BA-t-cell-count
#5
Gabriela Turk, Yanina Ghiglione, Macarena Hormanstorfer, Natalia Laufer, Romina Coloccini, Jimena Salido, César Trifone, María Julia Ruiz, Juliana Falivene, María Pía Holgado, María Paula Caruso, María Inés Figueroa, Horacio Salomón, Luis D Giavedoni, María de Los Ángeles Pando, María Magdalena Gherardi, Roberto Daniel Rabinovich, Pedro A Pury, Omar Sued
Progression of HIV infection is variable among individuals, and definition disease progression biomarkers is still needed. Here, we aimed to categorize the predictive potential of several variables using feature selection methods and decision trees. A total of seventy-five treatment-naïve subjects were enrolled during acute/early HIV infection. CD4⁺ T-cell counts (CD4TC) and viral load (VL) levels were determined at enrollment and for one year. Immune activation, HIV-specific immune response, Human Leukocyte Antigen (HLA) and C-C chemokine receptor type 5 (CCR5) genotypes, and plasma levels of 39 cytokines were determined...
January 13, 2018: Viruses
https://www.readbyqxmd.com/read/29340592/neuroimmunomodulators-in-neuroborreliosis-and-lyme-encephalopathy
#6
Elizabeth A Eckman, Javier Pacheco-Quinto, Aimee R Herdt, John J Halperin
Background: Lyme encephalopathy, characterized by non-specific neurobehavioral symptoms including mild cognitive difficulties, may occur in patients with systemic Lyme disease and is often mistakenly attributed to CNS infection. Identical symptoms occur in innumerable other inflammatory states and may reflect the effect of systemic immune mediators on the CNS. Methods: Multiplex immunoassays were used to characterize the inflammatory profile in serum and CSF from Lyme and non-Lyme patients with a range of symptoms to determine if there are specific markers of active CNS infection (neuroborreliosis), or systemic inflammatory mediators associated with neurobehavioral syndromes...
January 11, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29339257/changes-in-the-concentrations-of-inflammatory-and-oxidative-status-biomediators-mip-1-%C3%AE-pmn-elastase-mda-and-il-12-in-depressed-patients-with-and-without-posttraumatic-stress-disorder
#7
Ewa A Ogłodek
BACKGROUND: Both proinflammatory cytokines and oxidative stress are considered an imbalance between the cellular production of reactive oxygen species and the antioxidant defense mechanisms. An inflammatory response that occurs in depression leads to a synergy between pro-inflammatory cytokines and oxidative stress. This synergy induces common signal transduction pathways that boost the inflammatory cascade. The object of this study was to assess the concentrations of inflammatory and oxidative status biomediators such as MIP-1α, PMN elastase, MDA, and IL-12 in depressed patients with and without posttraumatic stress disorder (PTSD), and with PTSD alone...
August 26, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29338771/regulation-of-aquaporins-in-plants-under-stress
#8
REVIEW
Ranganathan Kapilan, Maryam Vaziri, Janusz J Zwiazek
Aquaporins (AQP) are channel proteins belonging to the Major Intrinsic Protein (MIP) superfamily that play an important role in plant water relations. The main role of aquaporins in plants is transport of water and other small neutral molecules across cellular biological membranes. AQPs have remarkable features to provide an efficient and often, specific water flow and enable them to transport water into and out of the cells along the water potential gradient. Plant AQPs are classified into five main subfamilies including the plasma membrane intrinsic proteins (PIPs), tonoplast intrinsic proteins (TIPs), nodulin 26 like intrinsic proteins (NIPs), small basic intrinsic proteins (SIPs) and X intrinsic proteins (XIPs)...
January 16, 2018: Biological Research
https://www.readbyqxmd.com/read/29335788/over-expression-of-a-grafting-responsive-gene-from-hickory-increases-abiotic-stress-tolerance-in-arabidopsis
#9
R M Saravana Kumar, Guocun Ji, Haipeng Guo, Liang Zhao, Bingsong Zheng
A grafting response gene CcPIP1;2 was cloned from hickory plant, further functional characterization of the gene for water transport activity and abiotic stress tolerances were carried out through heterologous expression in Xenopus and Arabidopsis. Plasma membrane intrinsic proteins (PIPs) are multifunctional channel proteins belonging to the membrane intrinsic protein (MIP) family. In this study, a grafting-responsive gene from hickory (CcPIP1;2) was cloned and functionally characterized. Application of non-selective water inhibitors (HgCl2 and phloretin) led to the death of grafted hickory plants at 30 days after grafting (DAG)...
January 15, 2018: Plant Cell Reports
https://www.readbyqxmd.com/read/29333922/effect-of-resveratrol-treatment-on-graft-revascularization-after-islet-transplantation-in-streptozotocin-induced-diabetic-mice
#10
Eun-Mi Lee, Inwon Park, Ye-Jee Lee, Young-Hye You, Ji-Won Kim, Myung-Jun Kim, Yu-Bae Ahn, Pilhan Kim, Seung-Hyun Ko
We evaluated the effect of resveratrol (RSV) on graft survival after islet transplantation (ITx) in diabetic mice. Isolated islets from Balb/c mice (200 IEQ) were transplanted under the kidney capsule of diabetic Balb/c mice. Vehicle or RSV (200 mg/kg/day, orally) was given for 14 days after ITx. Two more control groups [STZ-treated (No-ITx-Control) and STZ+RSV-treated (No-ITx-RSV) mice without ITx] were added. Glucose tolerance tests (GTT) was performed at 14 days after ITx. In vitro, isolated islets pretreated with vehicle or RSV (1 μM) were incubated in a hypoxic chamber (O2 1%, 1hr)...
January 15, 2018: Islets
https://www.readbyqxmd.com/read/29333852/synthesis-of-mip-nanoparticles-for-%C3%AE-casein-detection-using-spr-as-a-milk-allergen-sensor
#11
Jon Ashley, Yunus Shukor, Roberta D'Aurelio, Linda Trinh, Thomas Lawrence Rodgers, Jeff Temblay, Mike Pleasants, Ibtisam E Tothill
Food recalls due to undeclared allergens or contamination are costly to the food manufacturing industry worldwide. As the industry strives for better manufacturing efficiencies over a diverse range of food products, there is a need for the development of new analytical techniques to improve monitoring the presence of unintended food allergens during the food manufacturing process. In particular, the monitoring of wash samples from cleaning in place systems (CIP), used in the cleaning of food processing equipment, would allow for the effective removal of allergen containing ingredients in between food batches...
January 15, 2018: ACS Sensors
https://www.readbyqxmd.com/read/29333681/myotropic-activity-and-immuno-localization-of-selected-neuropeptides-of-the-burying-beetle-nicrophorus-vespilloides-coleoptera-silphidae
#12
Arkadiusz Urbański, Jan Lubawy, Paweł Marciniak, Grzegorz Rosiński
Burying beetles (Nicrophorus sp.) are necrophagous insects with developed parental care. Genome of Nicrophorus vespilloides has been recently sequenced, which makes them interesting model organism in behavioural ecology. However, we know very little about their physiology, including the functioning of their neuro-endocrine system. In this study, one of the physiological activities of proctolin, myosuppressin (Nicve-MS), myoinhibitory peptide (Trica-MIP-5) and the short neuropeptide F (Nicve-sNPF) in N. vespilloides have been investigated...
January 15, 2018: Insect Science
https://www.readbyqxmd.com/read/29332129/aspergillus-fumigatus-increased-par-2-expression-and-elevated-proinflammatory-cytokines-expression-through-the-pathway-of-par-2-erk1-2-in-cornea
#13
Yawen Niu, Guiqiu Zhao, Cui Li, Jing Lin, Nan Jiang, Chengye Che, Jie Zhang, Qiang Xu
Purpose: To determine the role of protease-activated receptor-2 (PAR-2) in cornea infected by Aspergillus fumigatus. Methods: PAR-2 was tested in normal and infected corneas of C57BL/6 mice. Mice corneas were infected with A. fumigatus with or without pretreatment of PAR-2 antagonist (FSLLRY-NH2). Polymorphonuclear neutrophilic leukocytes (PMNs) were stimulated with 75% ethanol-killed A. fumigatus with or without pretreatment of FSLLRY-NH2. Disease severity was documented by clinical score and photographs with a slit lamp...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29329886/solid-phase-extraction-of-chlorophenols-in-seawater-using-a-magnetic-ionic-liquid-molecularly-imprinted-polymer-with-incorporated-silicon-dioxide-as-a-sorbent
#14
Wanwan Ma, Kyung Ho Row
A type of magnetic ionic liquid based molecularly imprinted polymer coated on SiO2 (Fe3O4@SiO2@IL-MIPs) was prepared with 1-vinyl-3-ethylimidazole ionic liquid as functional monomer, and 1,4-butane-3,3'-bis-1-ethylimidazole ionic liquid as cross linker, 4-Chlorophenol as template was successfully applied as a selective adsorbent for selective extraction of 5 chlorophenols in seawater samples by using the magnetic solid-phase extraction (MSPE) method. 11 types of Fe3O4@SiO2@IL-MIPs were synthesized and investigated for their different compositions of functional monomer (such as [C2min][Br], [C2min][BF4], [C2min][PF6], acrylamide, methacrylic acid and 4-vinyl pyridine) and cross-linker (such as [C4min2][Br], [C4min2][BF4], [C4min2][PF6], divinylbenzene, and ethylene glycol dimethacrylate), respectively...
January 6, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29328969/poly-3-6-diamino-9-ethylcarbazole-based-molecularly-imprinted-polymer-sensor-for-ultra-sensitive-and-selective-detection-of-17-%C3%AE-estradiol-in-biological-fluids
#15
Weilu Liu, Haifeng Li, Shangmin Yu, Jiaxing Zhang, Weihua Zheng, Liting Niu, Gengen Li
In this work, we reported the synthesis of 3, 6-diamino-9-ethylcarbazole and its application as a new monomer for preparation of molecularly imprinted polymer (MIP) electrochemical sensor. The as prepared MIP sensor exhibited ultrahigh sensitivity and selectivity for the detection of 17-β-estradiol in attomolar levels (1 × 10-18molL-1). The sensor works by detecting the change of the interfacial impedance that is derived from recognition of 17-β-estradiol on the MIP layer. The MIP sensor based on 3, 6-diamino-9-ethylcarbazole monomer revealed better performance than that of unmodified carbazole monomer...
January 4, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29328139/holographic-display-methods-for-volume-data-polygon-based-and-mip-based-methods
#16
Zixiang Lu, Yuji Sakamoto
Volume data are widely used in many areas, especially in biomedical science and geology. However, current visualization technologies of volume data cannot satisfy the visual requirements of humans. In this study, we propose two holographic display methods for volume data. The first method is polygon-based, and the other is maximum intensity projection (MIP)-based. Both methods are able to generate computer generated holograms of volume data. The polygon-based method can obtain various and colorful holograms, while the MIP-based method can be quickly calculated...
January 1, 2018: Applied Optics
https://www.readbyqxmd.com/read/29324739/mansonella-perstans-microfilaremic-individuals-are-characterized-by-enhanced-type-2-helper-t-and-regulatory-t-and-b-cell-subsets-and-dampened-systemic-innate-and-adaptive-immune-responses
#17
Manuel Ritter, Winston Patrick Chounna Ndongmo, Abdel Jelil Njouendou, Nora Nganyewo Nghochuzie, Lucy Cho Nchang, Dizzle Bita Tayong, Kathrin Arndts, Norman Nausch, Marc Jacobsen, Samuel Wanji, Laura E Layland, Achim Hoerauf
The filarial nematode Mansonella perstans is endemic throughout Africa, northern South America and the Caribbean. Interestingly, M. perstans-infected individuals present no distinct clinical picture associated with certain pathology. Due to its relatively silent nature, research on this tropical disease has been neglected, especially M. perstans-driven immune responses. A hindrance in obtaining data on M. perstans-specific responses has been the inability to obtain adult worms since their habitats in serous cavities are difficult to access...
January 11, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29323388/a-novel-thermal-detection-method-based-on-molecularly-imprinted-nanoparticles-as-recognition-elements
#18
Francesco Canfarotta, J Czulak, K Betlem, A Sachdeva, K Eersels, B van Grinsven, T J Cleij, M Peeters
Molecularly Imprinted Polymers (MIPs) are synthetic receptors that are able to selectively bind their target molecule and, for this reason, they are currently employed as recognition elements in sensors. In this work, MIP nanoparticles (nanoMIPs) are produced by solid-phase synthesis for a range of templates with different sizes, including a small molecule (biotin), two peptides (one derived from the epithelial growth factor receptor and vancomycin) and a protein (trypsin). NanoMIPs are then dipcoated on the surface of thermocouples that measure the temperature inside a liquid flow cell...
January 11, 2018: Nanoscale
https://www.readbyqxmd.com/read/29320454/combined-layer-particle-approaches-in-surface-molecular-imprinting-of-proteins-signal-enhancement-and-competition
#19
Nam Van Ho Phan, Hermann F Sussitz, Eva Ladenhauf, Dietmar Pum, Peter A Lieberzeit
Herein we report novel approaches to the molecular imprinting of proteins utilizing templates sizing around 10 nm and some 100 nm. The first step comprised synthesizing nanoparticles of molecularly imprinted polymers (MIP) towards bovine serum albumin (BSA) and characterizing them according to size and binding capacity. In a second step, they were utilized as templates. Quartz crystal microbalances (QCM) coated with MIP thin films based on BSA MIP nanoparticles lead to a two-fold increase in sensor responses, compared with the case of directly using the protein as the template...
January 10, 2018: Sensors
https://www.readbyqxmd.com/read/29319431/same-sex-marriage-and-the-assimilationist-dilemma-a-research-agenda-on-marriage-equality-and-the-future-of-lgbtq-activism-politics-communities-and-identities
#20
Mary Bernstein
This special issue of the Journal of Homosexuality, examines the impact of the marriage equality movement and the resulting landmark U.S. Supreme Court decision, Obergefell v. Hodges (2015) that legalized same-sex marriage in the U.S. on LGBTQ activism, politics, communities, and identities. The articles in this issue examine the complicated ways in which the discourse used in same-sex marriage court cases is related to heteronormative discursive frames; the lived reality of married same-sex couples and the complex ways in which they think about marriage and heteronormativity; the ways that heteronormativity is racialized which affects how African Americans perceive the impact of same-sex marriage on their lives; how same-sex marriage has influenced public opinion and the likelihood of anti-gay backlash; and the impact of same-sex marriage on family law...
January 10, 2018: Journal of Homosexuality
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