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https://www.readbyqxmd.com/read/29342422/magnetic-mesoporous-molecularly-imprinted-polymers-based-on-surface-precipitation-polymerization-for-selective-enrichment-of-triclosan-and-triclocarban
#1
Xuemei Wang, Pengfei Huang, Xiaomin Ma, Xinzhen Du, Xiaoquan Lu
Novel magnetic mesoporous molecularly imprinted polymers (MMIPs) were prepared based on surface precipitation polymerization using Triclosan (TCS) as template and methacrylic acid as functional monomer. The synthesized MMIPs-TCS were applied to the adsorbent of magnetic solid-phase extraction (MSPE) coupled with HPLC for the enrichment and determination of TCS. The MMIPs-TCS were characterized by fourier-transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 adsorption-desorption transmission, and vibrating sample magnetometry...
January 10, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29342240/presence-of-myocardial-damage-predicts-future-development-of-hypertension-in-a-normotensive-japanese-general-population-the-yamagata-takahata-study
#2
Yuki Honda, Tetsu Watanabe, Harutoshi Tamura, Satoshi Nishiyama, Hiroki Takahashi, Takanori Arimoto, Tetsuro Shishido, Takuya Miyamoto, Yoko Shibata, Tsuneo Konta, Takamasa Kayama, Isao Kubota
Background: A modest rise in blood pressure (BP) reportedly increases cardiovascular mortality despite not reaching obvious hypertension, suggesting that target organ damages are latently induced by slight BP rising. The goal of this study was to determine whether presence of subclinical myocardial damage can predict the future development of hypertension in the normotensive general population. Methods and results: The cohort study was conducted with subjects who participated in a community-based annual health check...
January 12, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29342161/association-between-circulating-levels-of-sex-steroid-hormones-and-esophageal-adenocarcinoma-in-the-finbar-study
#3
Jessica L Petrick, Roni T Falk, Paula L Hyland, Patrick Caron, Ruth M Pfeiffer, Shannon N Wood, Sanford M Dawsey, Christian C Abnet, Philip R Taylor, Chantal Guillemette, Liam J Murray, Lesley A Anderson, Michael B Cook
BACKGROUND: Esophageal adenocarcinoma (EA) is characterized by a strong male predominance. Sex steroid hormones have been hypothesized to underlie this sex disparity, but no population-based study to date has examined this potential association. METHODS: Using mass spectrometry and ELISA, we quantitated sex steroid hormones and sex hormone binding globulin, respectively, in plasma from males- 172 EA cases and 185 controls-within the Factors Influencing the Barrett/Adenocarcinoma Relationship (FINBAR) Study, a case-control investigation conducted in Northern Ireland and Ireland...
2018: PloS One
https://www.readbyqxmd.com/read/29342116/vegf-signaling-in-neurological-disorders
#4
REVIEW
Joon W Shim, Joseph R Madsen
Vascular endothelial growth factor (VEGF) is a potent growth factor playing diverse roles in vasculogenesis and angiogenesis. In the brain, VEGF mediates angiogenesis, neural migration and neuroprotection. As a permeability factor, excessive VEGF disrupts intracellular barriers, increases leakage of the choroid plexus endothelia, evokes edema, and activates the inflammatory pathway. Recently, we discovered that a heparin binding epidermal growth factor like growth factor (HB-EGF)-a class of EGF receptor (EGFR) family ligands-contributes to the development of hydrocephalus with subarachnoid hemorrhage through activation of VEGF signaling...
January 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29342042/long-term-administration-of-salicylate-induced-changes-in-bdnf-expression-and-creb-phosphorylation-in-the-auditory-cortex-of-rats
#5
Bin Yi, Cong Wu, Runjie Shi, Kun Han, Haibin Sheng, Bei Li, Ling Mei, Xueling Wang, Zhiwu Huang, Hao Wu
HYPOTHESIS: We investigated whether salicylate induces tinnitus through alteration of the expression levels of brain-derived neurotrophic factor (BDNF), proBDNF, tyrosine kinase receptor B (TrkB), cAMP-responsive element-binding protein (CREB), and phosphorylated CREB (p-CREB) in the auditory cortex (AC). BACKGROUND: Salicylate medication is frequently used for long-term treatment in clinical settings, but it may cause reversible tinnitus. Salicylate-induced tinnitus is associated with changes related to central auditory neuroplasticity...
January 16, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29341885/deletion-of-the-duffy-antigen-receptor-for-chemokines-darc-promotes-insulin-resistance-and-adipose-tissue-inflammation-during-high-fat-feeding
#6
Tyler W Benson, Daniel S Weintraub, Matthew Crowe, Nicole K H Yiew, Orishebawo Popoola, Ajay Pillai, Joel Joseph, Krystal Archer, Charlotte Greenway, Tapan K Chatterjee, James Mintz, David W Stepp, Brian K Stansfield, Weiqin Chen, Julia Brittain, Vladimir Y Bogdanov, Yan Gao, James G Wilson, Yaoliang Tang, Ha Won Kim, Neal L Weintraub
OBJECTIVE: Inflammation in adipose tissues in obesity promotes insulin resistance and metabolic disease. The Duffy antigen receptor for chemokines (DARC) is a promiscuous non-signaling receptor expressed on erythrocytes and other cell types that modulates tissue inflammation by binding chemokines such as monocyte chemoattractant protein-1 (MCP-1) and by acting as a chemokine reservoir. DARC allelic variants are common in humans, but the role of DARC in modulating obesity-related metabolic disease is unknown...
January 13, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29341636/pair-potential-with-submillikelvin-uncertainties-and-nonadiabatic-treatment-of-the-halo-state-of-the-helium-dimer
#7
Michał Przybytek, Wojciech Cencek, Bogumił Jeziorski, Krzysztof Szalewicz
The pair potential for helium is computed with accuracy improved by an order of magnitude relative to the best previous determination. For the well region, its uncertainties are now below 1 millikelvin. The main improvement is due to the use of explicitly correlated wave functions at the nonrelativistic Born-Oppenheimer (BO) level of theory. The diagonal BO and the relativistic corrections are obtained from large full configuration interaction calculations. Nonadiabatic perturbation theory is used to predict the properties of the halo state of the helium dimer...
September 22, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29341617/enhancing-docetaxel-delivery-to-multidrug-resistant-cancer-cells-with-albumin-coated-nanocrystals
#8
Sheryhan F Gad, Joonyoung Park, Ji Eun Park, Gihan N Fetih, Sozan S Tous, Wooin Lee, Yoon Yeo
Intravenous delivery of poorly water-soluble anticancer drugs such as docetaxel (DTX) is challenging due to the low bioavailability and the toxicity related to solubilizing excipients. Colloidal nanoparticles are used as alternative carriers, but low drug loading capacity and circulation instability limit their clinical translation. To address these challenges, DTX nanocrystals (NCs) were prepared using Pluronic F127 as an intermediate stabilizer and albumin as a functional surface modifier, which were previously found to be effective in producing small and stable NCs...
January 17, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29341476/a-rare-male-patient-with-classic-rett-syndrome-caused-by-mecp2_e1-mutation
#9
Narumi Tokaji, Hiromichi Ito, Tomohiro Kohmoto, Takuya Naruto, Rizu Takahashi, Aya Goji, Tatsuo Mori, Yoshihiro Toda, Masako Saito, Shoichiro Tange, Kiyoshi Masuda, Shoji Kagami, Issei Imoto
Rett syndrome (RTT) is a severe neurodevelopmental disorder typically affecting females. It is mainly caused by loss-of-function mutations that affect the coding sequence of exon 3 or 4 of methyl-CpG-binding protein 2 (MECP2). Severe neonatal encephalopathy resulting in death before the age of 2 years is the most common phenotype observed in males affected by a pathogenic MECP2 variant. Mutations in MECP2 exon 1 affecting the MeCP2_e1 isoform are relatively rare causes of RTT in females, and only one case of a male patient with MECP2-related severe neonatal encephalopathy caused by a mutation in MECP2 exon 1 has been reported...
January 17, 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29341282/expression-analyses-of-candidate-genes-related-to-meat-quality-traits-in-squabs-from-two-breeds-of-meat-type-pigeon
#10
M Ye, M Xu, C Chen, Y He, M Ding, X Ding, W Wei, S Yang, B Zhou
In this study, meat quality traits were compared between squabs from two pigeon breeds: one Chinese indigenous breed, the Shiqi (SQ) meat-type pigeon, and an imported breed, the white king (WK) meat-type pigeon. Breed differences were detected in the content of intramuscular fat (IMF) in the breast muscle. SQ squabs had significantly higher IMF content than the WK birds. The shear force value (an objective measure of meat tenderness) of SQ birds was also relatively lower than that of the WK squabs. Further analysis of fatty acids profile revealed that SQ squabs exhibited significant advantage in the synthesis of polyunsaturated fatty acids, while WK squabs were significantly higher in the sum of monounsaturated fatty acids...
January 17, 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29341117/hoxd-as1-mir-130a-sponge-regulates-glioma-development-by-targeting-e2f8
#11
Yinan Chen, Fengbo Zhao, Daming Cui, Rui Jiang, Jian Chen, Qingfeng Huang, Jinlong Shi
Glioma development is an extremely complex process with changes occurring in numerous genes. HOXD antisense growth-associated long non-coding RNA (HOXD-AS1), an important long non-coding RNA (lncRNA), is known to regulate metastasis-related gene expression in bladder cancer, ovarian cancer and neuroblastoma. Here, we elucidated the function and possible molecular mechanisms of lncRNA HOXD-AS1 in human glioma cells. Our results proved that HOXD-AS1 expression was upregulated in glioma tissues and in glioma cell lines...
January 17, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29340966/cannabinomimetric-lipids-from-natural-extract-to-artificial-synthesis
#12
REVIEW
Ya-Ru Gao, Yong-Qiang Wang
Endocannabinoid system is related with various physiological and cognitive processes including fertility, pregnancy, during pre- and postnatal development, pain-sensation, mood, appetite, and memory. In the latest decades, an important milestone concerning the endocannabinoid system was the discovery of the existence of the cannabinoid receptors CB1 and CB2. Anandamide was the first reported endogenous metabolite, which adjusted the release of some neurotransmitters through binding to the CB1 or CB2 receptors...
January 16, 2018: Natural Products and Bioprospecting
https://www.readbyqxmd.com/read/29340786/in-silico-identification-and-experimental-validation-of-amino-acid-motifs-required-for-the-rho-of-plants-gtpase-mediated-activation-of-receptor-like-cytoplasmic-kinases
#13
Dézi Bianka Lajkó, Ildikó Valkai, Mónika Domoki, Dalma Ménesi, Györgyi Ferenc, Ferhan Ayaydin, Attila Fehér
Several amino acid motifs required for Rop-dependent activity were found to form a common surface on RLCKVI_A kinases. This indicates a unique mechanism for Rho-type GTPase-mediated kinase activation in plants. Rho-of-plants (Rop) G-proteins are implicated in the regulation of various cellular processes, including cell growth, cell polarity, hormonal and pathogen responses. Our knowledge about the signalling pathways downstream of Rops is continuously increasing. However, there are still substantial gaps in this knowledge...
January 16, 2018: Plant Cell Reports
https://www.readbyqxmd.com/read/29340654/antioxidant-angiotensin-converting-enzyme-inhibitory-activity-and-other-functional-properties-of-egg-white-proteins-and-their-derived-peptides-a-review
#14
E D N S Abeyrathne, X Huang, D U Ahn
Egg white contains many functionally important proteins: ovalbumin (54%), ovotransferrin (12%), ovomucoid (11%), ovoglobulin (G2 and G3, 8%), ovomucin (3.5%), and lysozyme (3.5%) are major proteins, while ovoinhibitors, ovomacroglobulin, ovoglycoprotein, ovoflavoprotein, thiamine-binding proteins, and avidin are minor proteins present in egg white. These proteins, as well as the peptides derived from the proteins, have been recognized for their functional importance as antioxidant, antimicrobial, metal-chelating, anti-viral, anti-tumour, and angiotensin-converting enzyme (ACE)-inhibitory activities...
January 11, 2018: Poultry Science
https://www.readbyqxmd.com/read/29340167/subcutaneous-glucagon-infusion-and-continuous-glucose-monitoring-enable-effective-management-of-hypoglycemia-in-a-patient-with-igf-2-producing-hemangiopericytoma
#15
Eric D Buras, Emily Weatherup, Jennifer Wyckoff
Background: Ectopic insulin-like growth factor (IGF)-2 production is a rare complication of an array of epithelial and mesenchymal tumors, and can clinically manifest as life-threatening hypoglycemia. Case presentation: A 49-year-old woman with 13-year history of metastatic hemangiopericytoma, previously treated with multiple rounds of chemotherapy and palliative radiation, presented to the emergency department after a hypoglycemic seizure. On arrival, glucose was 18 mg/dL (1...
2018: Clinical Diabetes and Endocrinology
https://www.readbyqxmd.com/read/29339729/ecotropic-viral-integration-site-1-promotes-metastasis-independent-of-epithelial-mesenchymal-transition-in-colon-cancer-cells
#16
Kasturi Bala Nayak, I S Sajitha, T R Santhosh Kumar, Soumen Chakraborty
The most indecipherable component of solid cancer is the development of metastasis which accounts for more than 90% of cancer-related mortalities. A developmental program termed epithelial-mesenchymal transition (EMT) has also been shown to play a critical role in promoting metastasis in epithelium-derived solid tumors. By analyzing publicly available microarray datasets, we observed that ecotropic viral integration site 1 (EVI1) correlates negatively with SLUG, a master regulator of EMT. This correlation was found to be relevant as we demonstrated that EVI1 binds to SLUG promoter element directly through the distal set of zinc fingers and downregulates its expression...
January 16, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29339719/mir-181a-5p-suppresses-invasion-and-migration-of-htr-8-svneo-cells-by-directly-targeting-igf2bp2
#17
Liang Wu, Wen-Yan Song, Ya Xie, Lin-Li Hu, Xiao-Man Hou, Rui Wang, Yang Gao, Jing-Na Zhang, Le Zhang, Wei-Wei Li, Cheng Zhu, Zhi-Ying Gao, Ying-Pu Sun
Pre-eclampsia is a pregnancy-related disease that may cause maternal, neonatal and fetal morbidity and mortality and exists in 3-5% of pregnancies worldwide. The discovery of dysregulated microRNAs and their roles in placental development has provided a new avenue for elucidating the mechanism involved in this pregnancy-specific disorder. Here, the roles of human miR-181a-5p, a microRNA that is increased in both the plasma and placenta of severe pre-eclamptic patients, in invasion and migration of trophoblasts were investigated...
January 16, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29339550/relative-target-affinities-of-t-cell-dependent-bispecific-antibodies-determine-biodistribution-in-a-solid-tumor-mouse-model
#18
Danielle Mandikian, Nene Takahashi, Amy A Lo, Ji Li, Jeffrey Eastham-Anderson, Dionysos Slaga, Jason Ho, Maria Hristopoulos, Robyn Clark, Klara Totpal, Kedan Lin, Sean B Joseph, Mark S Dennis, Saileta Prabhu, Teemu T Junttila, C Andrew Boswell
Anti-HER2/CD3, a T cell-dependent bispecific antibody (TDB) construct, induces T cell-mediated cell death in cancer cells expressing HER2 by cross-linking tumor HER2 with CD3 on cytotoxic T cells, thereby creating a functional cytolytic synapse. TDB design is a very challenging process that requires consideration of multiple parameters. While therapeutic antibody design strategy is commonly driven by striving for the highest attainable antigen binding affinity, little is known about how the affinity of each TDB arm can affect the targeting ability of the other arm and the consequent distribution and efficacy...
January 16, 2018: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29339518/iterative-optimization-yields-mcl-1-targeting-stapled-peptides-with-selective-cytotoxicity-to-mcl-1-dependent-cancer-cells
#19
Raheleh Rezaei Araghi, Gregory H Bird, Jeremy A Ryan, Justin M Jenson, Marina Godes, Jonathan R Pritz, Robert A Grant, Anthony Letai, Loren D Walensky, Amy E Keating
Bcl-2 family proteins regulate apoptosis, and aberrant interactions of overexpressed antiapoptotic family members such as Mcl-1 promote cell transformation, cancer survival, and resistance to chemotherapy. Discovering potent and selective Mcl-1 inhibitors that can relieve apoptotic blockades is thus a high priority for cancer research. An attractive strategy for disabling Mcl-1 involves using designer peptides to competitively engage its binding groove, mimicking the structural mechanism of action of native sensitizer BH3-only proteins...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339493/emergent-chirality-in-the-electric-polarization-texture-of-titanate-superlattices
#20
Padraic Shafer, Pablo García-Fernández, Pablo Aguado-Puente, Anoop R Damodaran, Ajay K Yadav, Christopher T Nelson, Shang-Lin Hsu, Jacek C Wojdeł, Jorge Íñiguez, Lane W Martin, Elke Arenholz, Javier Junquera, Ramamoorthy Ramesh
Chirality is a geometrical property by which an object is not superimposable onto its mirror image, thereby imparting a handedness. Chirality determines many important properties in nature-from the strength of the weak interactions according to the electroweak theory in particle physics to the binding of enzymes with naturally occurring amino acids or sugars, reactions that are fundamental for life. In condensed matter physics, the prediction of topologically protected magnetic skyrmions and related spin textures in chiral magnets has stimulated significant research...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
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