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https://www.readbyqxmd.com/read/28938424/adiponectin-predicts-hdl-cholesterol-efflux-capacity-in-adults-irrespective-of-body-mass-index-and-fat-distribution
#1
Gunther Marsche, Sieglinde Zelzer, Andreas Meinitzer, Sabine Kern, Sabine Meissl, Gudrun Pregartner, Daniel Weghuber, Gunter Almer, Harald Mangge
Context: Obesity is associated with hypoadiponectemia, dyslipidemia and increased risk of coronary vascular disease (CVD). Mechanisms linking these conditions remain to be fully understood. Cholesterol efflux capacity (CEC) is a crucial functional property of high-density lipoprotein (HDL) that strongly predicts CVD incidence. Objective: To investigate whether age, fat distribution, and other obesity related factors affect CEC in juvenile and adult overweight/obese participants of the STYJOBS/EDECTA cohort (NCT00482924)...
August 29, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28935974/membrane-particles-generated-from-mesenchymal-stromal-cells-modulate-immune-responses-by-selective-targeting-of-pro-inflammatory-monocytes
#2
Fabiany da C Gonçalves, Franka Luk, Sander S Korevaar, Rachid Bouzid, Ana H Paz, Carmen López-Iglesias, Carla C Baan, Ana Merino, Martin J Hoogduijn
Mesenchymal stromal cells (MSC) are a promising therapy for immunological disorders. However, culture expanded MSC are large and get trapped in the capillary networks of the lungs after intravenous infusion, where they have a short survival time. Hypothetically, living cells are a risk for tumor formation. To reduce risks associated with MSC infusion and improve the distribution in the body, we generated membrane particles (MP) of MSC and MSC stimulated with IFN-γ (MPγ). Tracking analysis and electron microscopy indicated that the average size of MP was 120 nm, and they showed a round shape...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935566/construction-of-protein-functionalized-virus-like-particles-of-parvovirus-b19
#3
Ismael Bustos-Jaimes, Ricardo Arturo Soto-Román, Isabel Alejandra Gutiérrez-Landa, Josefina Valadez-García, Carla Lizbeth Segovia-Trinidad
Decoration of virus-like particles (VLPs) expands the repertory of functions these particles can display. In the last years, VLPs have successfully been used as scaffolds to present different molecules, frequently through the specific reaction of chemical groups on the surface of the particles, or by protein engineering when the presentation of peptides or proteins is the primary goal. VLPs of parvovirus B19 (B19V), have been previously produced in vitro and its stability and ability to assemble into hybrid particles composed of wild-type and chimeric proteins evidenced their potential as research tools...
September 18, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28934356/reducing-cell-wall-feruloylation-by-expression-of-a-fungal-ferulic-acid-esterase-in-festuca-arundinacea-modifies-plant-growth-leaf-morphology-and-the-turnover-of-cell-wall-arabinoxylans
#4
Marcia M de O Buanafina, Prashanti R Iyer, M Fernanda Buanafina, Erica A Shearer
A feature of cell wall arabinoxylan in grasses is the presence of ferulic acid which upon oxidative coupling by the action of peroxidases forms diferuloyl bridges between formerly separated arabinoxylans. Ferulate cross-linking is suspected of playing various roles in different plant processes. Here we investigate the role of cell wall feruloyaltion in two major processes, that of leaf growth and the turnover of cell wall arabinoxylans on leaf senescence in tall fescue using plants in which the level of cell wall ferulates has been reduced by targeted expression of the Aspergillus niger ferulic acid esterase A (FAEA) to the apoplast or Golgi...
2017: PloS One
https://www.readbyqxmd.com/read/28927276/alkoxycarbonate-ester-prodrugs-of-preclinical-drug-candidate-elq-300-for-prophylaxis-and-treatment-of-malaria
#5
Lisa Frueh, Yuexin Li, Michael Mather, Qigui Li, Sovitj Pou, Aaron Nilsen, Rolf W Winter, Isaac Forquer, April Pershing, Lisa H Xie, Martin J Smilkstein, Diana Caridha, Robert F Campbell, Richard J Sciotti, Mara Kreishman-Deitrick, Jane X Kelly, Brian Andrew Vesely, Akhil Vaidya, Michael K Riscoe
ELQ-300 is a preclinical antimalarial drug candidate that is active against liver, blood, and transmission stages of Plasmodium falciparum. While ELQ-300 is highly effective when administered in a low multi-dose regimen, poor aqueous solubility and high crystallinity have hindered its clinical development. To overcome its challenging physiochemical properties, a number of bioreversible alkoxycarbonate ester prodrugs of ELQ-300 were synthesized. These bioreversible prodrugs are converted to ELQ-300 by host and parasite esterase action in the liver and bloodstream of the host...
September 19, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28925944/interference-of-paraben-compounds-with-estrogen-metabolism-by-inhibition-of-17%C3%AE-hydroxysteroid-dehydrogenases
#6
Roger T Engeli, Simona R Rohrer, Anna Vuorinen, Sonja Herdlinger, Teresa Kaserer, Susanne Leugger, Daniela Schuster, Alex Odermatt
Parabens are effective preservatives widely used in cosmetic products and processed food, with high human exposure. Recent evidence suggests that parabens exert estrogenic effects. This work investigated the potential interference of parabens with the estrogen-activating enzyme 17β-hydroxysteroid dehydrogenase (17β-HSD) 1 and the estrogen-inactivating 17β-HSD2. A ligand-based 17β-HSD2 pharmacophore model was applied to screen a cosmetic chemicals database, followed by in vitro testing of selected paraben compounds for inhibition of 17β-HSD1 and 17β-HSD2 activities...
September 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28920426/methotrexate-camptothecin-prodrug-nanoassemblies-as-a-versatile-nanoplatform-for-biomodal-imaging-guided-self-active-targeted-and-synergistic-chemotherapy
#7
Yang Li, Jinyan Lin, Jinyuan Ma, Liang Song, Huirong Lin, Bowen Tang, Dengyue Chen, Guanghao Su, Shefang Ye, Xuan Zhu, Fang-Hong Luo, Zhenqing Hou
"All-in-one" carrier-free-based nano-multi-drug self-delivery system could combine triple advantages of small molecules, nanoscale characteristics, and synergistic combination therapy together. Researches have showed that dual-acting small molecular methotrexate (MTX) could target and kill the folate receptors-overexpressing cancer cells. Inspired by this mechanism, a novel collaborative "early-phase tumor-selective targeting and late-phase synergistic anticancer" approach was developed for the self-assembly of chemotherapeutic drug-drug conjugate, which showed various advantages of more simplicity, efficiency, and flexibility over the conventional approach that was only based on single or combination cancer chemotherapy...
September 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28920414/metagenomic-analysis-of-bacterial-community-structure-and-diversity-of-lignocellulolytic-bacteria-in-vietnamese-native-goat-rumen
#8
Huyen Thi Do, Khoa Trong Dao, Viet Khanh Hoang Nguyen, Giang Ngoc Le, Phuong Thi Mai Nguyen, Lam Tung Le, Nguyet Thu Phung, Nico van Straalen, Dick Roelofs, Hai Nam Truong
Objective: In a previous study, analysis of Illumina sequenced metagenomic DNA data of bacteria in Vietnamese goats' rumen showed a high diversity of putative lignocellulolytic genes. In this study, taxonomy speculation of microbial community and lignocellulolytic bacteria population in the rumen was conducted to elucidate a role of bacterial structure for effective degradation of plant materials. Methods: The metagenomic data had been subjected into Basic Local Alignment Search Tool (BLASTX) algorithm and the National Center for Biotechnology Information (NCBI) non-redundant (NR) sequence database...
September 18, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28917132/a-novel-real-time-rt-pcr-assay-for-influenza-c-tested-in-peruvian-children
#9
Leigh M Howard, Monika Johnson, Ana I Gil, Andrew Pekosz, Marie R Griffin, Kathryn M Edwards, Claudio F Lanata, Carlos G Grijalva, John V Williams
BACKGROUND: Influenza C virus (ICV) is associated with acute respiratory illness. Yet ICV remains under recognized, with most previous studies using only culture to identify cases. OBJECTIVES: To develop a sensitive and specific real-time RT-PCR assay for ICV that allows for rapid and accurate detection in a clinical or research setting. STUDY DESIGN: Multiple ICV sequences obtained from GenBank were analyzed, including 141 hemagglutinin-esterase (HE), 106 matrix (M), and 97 nucleoprotein (NP) sequences...
September 1, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28915944/a-novel-substrate-inspired-fluorescent-probe-to-monitor-native-albumin-in-human-plasma-and-living-cells
#10
Guang-Bo Ge, Lei Feng, Qiang Jin, Yi-Ru Wang, Zhao-Ming Liu, Xin-Yue Zhu, Ping Wang, Jie Hou, Jing-Nan Cui, Ling Yang
Human albumin (HA) displays crucial roles in maintaining health and fighting diseases. Accurate determination of native HA in plasma or non-plasma samples are of immense significance in both basic research and clinical practice. Herein, a novel ratiometric two-photon fluorescent probe (N-butyl-4-(4-phenyl-benzoyloxy) 1,8-naphthalimide, BPBN) has been designed and developed for highly selective and sensitive sensing the enzymatic activities of HA, on the basis of its unique pseudo-esterase feature. BPBN exhibits excellent selectivity, high sensitivity and good reactivity under physiological conditions...
October 9, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28912417/comparison-of-leukocyte-esterase-testing-of-synovial-fluid-with-synovial-histology-for-the-diagnosis-of-periprosthetic-joint-infection
#11
Rui Li, Xiang Li, Baozhan Yu, Xin Li, Xinggui Song, Heng Li, Chi Xu, Jiying Chen
BACKGROUND Periprosthetic joint infection (PJI) is a complication of total joint arthroplasty (TJA). The leukocyte esterase (LE) strip test and histology are diagnostic methods for PJI. The aims of this study were to determine the sensitivity and specificity of the LE strip test and to compare it with histology in the diagnosis of PJI. MATERIAL AND METHODS Between January and December 2015, 93 patients who underwent TJA with PJI were enrolled in the study. Synovial fluid samples were tested with an LE strip, and three synovial tissue samples from each patient underwent frozen section and formalin-fixed histology...
September 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28911536/biopharmaceutical-potentials-of-prosopis-spp-mimosaceae-leguminosa
#12
REVIEW
Santhaseelan Henciya, Prabha Seturaman, Arthur Rathinam James, Yi-Hong Tsai, Rahul Nikam, Yang-Chang Wu, Hans-Uwe Dahms, Fang Rong Chang
Prosopis is a commercially important plant genus, which has been used since ancient times, particularly for medicinal purposes. Traditionally, Paste, gum, and smoke from leaves and pods are applied for anticancer, antidiabetic, anti-inflammatory, and antimicrobial purposes. Components of Prosopis such as flavonoids, tannins, alkaloids, quinones, or phenolic compounds demonstrate potentials in various biofunctions, such as analgesic, anthelmintic, antibiotic, antiemetic, microbial antioxidant, antimalarial, antiprotozoal, antipustule, and antiulcer activities; enhancement of H(+), K(+), ATPases; oral disinfection; and probiotic and nutritional effects; as well as in other biopharmaceutical applications, such as binding abilities for tablet production...
January 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28911247/metabolic-pathways-and-pharmacokinetics-of-natural-medicines-with-low-permeability
#13
Mei Zeng, Lan Yang, Dan He, Yao Li, Mingxin Shi, Jingqing Zhang
Drug metabolism plays an important role in the drug disposal process. Differences in pharmacokinetics among individuals are the basis for personalized medicine. Natural medicines, formed by long-term evolution of nature, prioritize the action of a target protein with a drug. Natural medicines are valued for structural diversity, low toxicity, low cost, and definite biological activities. Metabolic pathway and pharmacokinetic research of natural medicines is highly beneficial for clinical dose adjustment and the development of personalized medicine...
September 14, 2017: Drug Metabolism Reviews
https://www.readbyqxmd.com/read/28904995/distribution-of-o-acetylated-sialic-acids-among-target-host-tissues-for-influenza-virus
#14
Brian R Wasik, Karen N Barnard, Robert J Ossiboff, Zahra Khedri, Kurtis H Feng, Hai Yu, Xi Chen, Daniel R Perez, Ajit Varki, Colin R Parrish
Sialic acids (Sias) are important glycans displayed on the cells and tissues of many different animals and are frequent targets for binding and modification by pathogens, including influenza viruses. Influenza virus hemagglutinins bind Sias during the infection of their normal hosts, while the encoded neuraminidases and/or esterases remove or modify the Sia to allow virion release or to prevent rebinding. Sias naturally occur in a variety of modified forms, and modified Sias can alter influenza virus host tropisms through their altered interactions with the viral glycoproteins...
September 2017: MSphere
https://www.readbyqxmd.com/read/28903805/recombinant-human-c1-esterase-inhibitor-for-acute-hereditary-angioedema-attacks-with-upper-airway-involvement
#15
M A M A Riedl, H H Li, M M Cicardi, J R J R Harper, A A Relan
BACKGROUND: Recombinant human C1 esterase inhibitor (rhC1-INH) is approved for treatment of hereditary angioedema (HAE)in adolescents and adults. HAE attacks that involve the upper airway can be life threatening, and data on the administration of rhC1-INH for these types of attacks are currently limited. OBJECTIVE: To evaluate the efficacy and safety of rhC1-INH for treatment of acute HAE attacks with upper airway involvement. METHODS: A pooled analysis of data from three clinical trials with open-label extensions examined rhC1-INH for treatmentof acute HAE attacks with upper airway involvement...
September 13, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28903500/intrinsic-xenobiotic-metabolizing-enzyme-activities-in-early-life-stages-of-zebrafish-danio-rerio
#16
Jens C Otte, Bernadette Schultz, Daniela Fruth, Eric Fabian, Bennard van Ravenzwaay, Björn Hidding, Edward R Salinas
Early life stages of zebrafish (Danio rerio, zf) are gaining attention as an alternative invivo test system for drug discovery, early developmental toxicity screenings and chemical testing in ecotoxicological and toxicological testing strategies. Previous studies have demonstrated transcriptional evidence for xenobiotic metabolizing enzymes (XME) during early zf development. However, elaborate experiments on XME activities during development are incomplete. In this work, the intrinsic activities of representative phase I and II XME were monitored by transformation of putative zf model substrates analyzed using photometry and high pressure liquid chromatography techniques...
September 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28900743/catechin-ameliorates-doxorubicin-induced-neuronal-cytotoxicity-in-in-vitro-and-episodic-memory-deficit-in-in-vivo-in-wistar-rats
#17
Sri Pragnya Cheruku, Grandhi Venkata Ramalingayya, Mallikarjuna Rao Chamallamudi, Subhankar Biswas, Krishnadas Nandakumar, Madhavan Nampoothiri, Karthik Gourishetti, Nitesh Kumar
Cognitive dysfunction by chemotherapy compromises the quality of life in cancer patients. Tea polyphenols are known chemopreventive agents. The present study was designed to evaluate the neuroprotective potential of (+) catechin hydrate (catechin), a tea polyphenol, in IMR-32 neuroblastoma cells in vitro and alleviation of episodic memory deficit in Wistar rats in vivo against a widely used chemotherapeutic agent, Doxorubicin (DOX). In vitro, neuroprotective studies were assessed in undifferentiated IMR-32 cells using percentage viability and in differentiated cells by neurite length...
September 13, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28895511/croceivirga-radicis-gen-nov-sp-nov-isolated-from-a-rotten-tropical-mangrove-root
#18
Dong Hu, Liping Wang, Yanwu Chen, Xiaoyi Li, Yaping Du, Fengqin Sun, Lei Wang, Chun Fan, Ran Zhao, Chen Tang, Zongze Shao
A novel bacterial strain, designated HSG9T, was isolated from aisolated from a rotten tropical mangrove root. Cells of strain HSG9T were aerobic, Gram-stain-negative, yellow, oxidase-negative and catalase-positive. Growth was observed in 0.5-9 % sea salt (optimum 3 %, w/v), at 10-42 °C (optimum 25-35 °C) and at pH 6.0-8.0 (optimum 7.0-8.0). Gelatin, esterase and Tweens 20, 40, 60 and 80 were hydrolysed, but starch, protein, cellulose and casein were not. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain HSG9T formed an independent lineage related to the family Flavobacteriaceae...
September 12, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28894981/comparative-study-of-esterases-in-deltamethrin-and-diazinon-resistant-rhipicephalus-microplus-and-hyalomma-anatolicum-ticks-collected-from-the-trans-gangetic-plains-of-india
#19
Ruchi Singh Gaur, Arun Kumar Sangwan, Nirmal Sangwan, Mayukh Ghosh, Sachin Kumar
A comparative analysis of esterases in susceptible and resistant ticks revealed six types of esterases (EST-1b, EST-2b, EST-3b, EST-4b, EST-5b and EST-6b) in Rhipicephalus microplus and four types (EST-1h, EST-2h, EST-3h, EST-4h) in Hyalomma anatolicum using α-naphthyl acetate substrate. Inhibition studies with eserine sulfate, p-chloromercuribenzoate, copper sulphate and phenylmethylsulfonyl fluoride revealed a marked variation in band intensity between susceptible and resistant ticks, with the latter being more intense...
September 11, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28893251/identification-and-immobilization-of-a-novel-cold-adapted-esterase-and-its-potential-for-bioremediation-of-pyrethroid-contaminated-vegetables
#20
Xinjiong Fan, Weiqu Liang, Yanfang Li, He Li, Xiaolong Liu
BACKGROUND: Pyrethroids are potentially harmful to living organisms and ecosystems. Thus, concerns have been raised about pyrethroid residues and their persistence in agricultural products. To date, although several pyrethroid-hydrolyzing enzymes have been cloned, very few reports are available on pyrethroid-hydrolyzing enzymes with cold adaptation, high hydrolytic activity and good reusability, indispensable properties in practical bioremediation of pyrethroid-contaminated vegetables...
September 11, 2017: Microbial Cell Factories
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