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https://www.readbyqxmd.com/read/28921745/transcription-factor-ccaat-enhancer-binding-protein-%C3%AE-upregulates-microrna-let-7f-1-in-human-endocervical-cells
#1
Kanchana Ayyar, Kudumula Venkata Rami Reddy
PROBLEM: In endocervical epithelial cells (End1/E6E7), miRNA let-7f plays an important role in the control of innate immunity. The underlying molecular mechanism for let-7f regulation in these cells remains largely unclear. METHODS OF STUDY: let-7f was knocked down in End1/E6E7 cells using siRNA, and differential gene expression was analyzed by microarray. Differentially expressed genes were validated by qPCR and Western blot. Expression of let-7f was studied by qPCR after inhibition of C/EBPβ with betulinic acid (BA) and pCMVβ plasmid and after overexpression of C/EBPβ with pCMVβ+ plasmid...
September 16, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28921554/dj-1-deficiency-impairs-autophagy-and-reduces-alpha-synuclein-phagocytosis-by-microglia
#2
Yuval Nash, Eran Schmukler, Dorit Trudler, Ronit Pinkas-Kramarski, Dan Frenkel
Parkinson's disease (PD) is a progressive neurodegenerative disorder, of which 1% of the hereditary cases are linked to mutations in DJ-1, an oxidative stress sensor. The pathological hallmark of PD is intercellular inclusions termed Lewy Bodies, composed mainly of α-Synuclein (α-Syn) protein. Recent findings have shown that α-Syn can be transmitted from cell to cell, suggesting an important role of microglia, as the main scavenger cells of the brain, in clearing α-Syn. We previously reported that the knock down (KD) of DJ-1 in microglia increased cells' neurotoxicity to dopaminergic neurons...
September 16, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28921050/characterization-of-ccstop1-a-c2h2-type-transcription-factor-regulates-al-tolerance-gene-in-pigeonpea
#3
Abhijit Arun Daspute, Yuriko Kobayashi, Sanjib Kumar Panda, Bashasab Fakrudin, Yasufumi Kobayashi, Mutsutomo Tokizawa, Satoshi Iuchi, Arbind Kumar Choudhary, Yoshiharu Y Yamamoto, Hiroyuki Koyama
Al-responsive citrate-transporting CcMATE1 function and its regulation by CcSTOP1 were analyzed using NtSTOP1 -KD tobacco- and pigeonpea hairy roots, respectively, CcSTOP1 binding sequence of CcMATE1 showed similarity with AtALMT1 promoter. The molecular mechanisms of Aluminum (Al) tolerance in pigeonpea (Cajanus cajan) were characterized to provide information for molecular breeding. Al-inducible citrate excretion was associated with the expression of MULTIDRUGS AND TOXIC COMPOUNDS EXCLUSION (CcMATE1), which encodes a citrate transporter...
September 18, 2017: Planta
https://www.readbyqxmd.com/read/28920090/reconstructing-coral-calcification-fluid-dissolved-inorganic-carbon-chemistry-from-skeletal-boron-an-exploration-of-potential-controls-on-coral-aragonite-b-ca
#4
Nicola Allison
The boron geochemistry of coral skeletons reflects the dissolved inorganic carbon (DIC) chemistry of the calcification fluid from which the skeletons precipitates and may be a valuable tool to investigate the effects of climate change on coral calcification. In this paper I calculate the predicted B/Ca of aragonite precipitating from seawater based fluids as a function of pH, [DIC] and [Ca(2+)]. I consider how different co-precipitating DIC species affect aragonite B/Ca and also estimate the impact of variations in the B(OH)4(-)/co-precipitating DIC aragonite partition coefficient (KD), which may be associated with changes in the DIC and Ca(2+) chemistry of the calcification fluid...
August 2017: Heliyon
https://www.readbyqxmd.com/read/28918467/anisodamine-inhibits-endoplasmic-reticulum-stress-associated-txnip-nlrp3-inflammasome-activation-in-rhabdomyolysis-induced-acute-kidney-injury
#5
Xiaopeng Yuan, Yitao Zheng, Chuanbao Chen, Changxi Wang
Anisodamine protects against free radical-induced cellular damage. This study aimed to investigate the protective effect of anisodamine on rhabdomyolysis-induced acute kidney injury (RIAKI). C57BL/6 J mice, TXNIP(-/-) and NLRP3 (-/-) (both were C57BL/6 J background) mice were used to construct RIAKI model. Anisodamine administration was performed on RIAKI mice only. Mice were divided into control, TXNIP-KD (knock down), LNPR3-KD, and anisodamine group (n = 15 in each group). The renal injury, renal function, renal tubular cells apoptosis and expression of Caspase-1, ASC, endoplasmic reticulum (ER) stress markers IRE-1α, CHOP, and ATF4, and interleukin (IL-1α, IL-1β, and IL-18) were detected...
September 16, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28918158/recombinant-expression-and-characterization-of-lucilia-cuprina-cyp6g3-activity-and-binding-properties-toward-multiple-pesticides
#6
Matthew J Traylor, Jong-Min Baek, Katelyn E Richards, Roberto Fusetto, W Huang, Peter Josh, Zhengzhong Chen, Padma Bollapragada, Richard A J O'Hair, Philip Batterham, Elizabeth M J Gillam
The Australian sheep blowfly, Lucilia cuprina, is a primary cause of sheep flystrike and a major agricultural pest. Cytochrome P450 enzymes have been implicated in the resistance of L. cuprina to several classes of insecticides. In particular, CYP6G3 is a L. cuprina homologue of Drosophila melanogaster CYP6G1, a P450 known to confer multi-pesticide resistance. To investigate the basis of resistance, a bicistronic Escherichia coli expression system was developed to co-express active L. cuprina CYP6G3 and house fly (Musca domestica) P450 reductase...
September 13, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28917743/selection-of-an-aptamer-against-muscovy-duck-parvovirus-for-highly-sensitive-rapid-visual-detection-by-label-free-aptasensor
#7
Taofeng Lu, Qin Ma, Wenzhuo Yan, Yuanzhi Wang, Yuanyuan Zhang, Lili Zhao, Hongyan Chen
Muscovy duck parvovirus (MDPV) causes high mortality and morbidity in ducks. This study investigated a novel aptamer-based, label-free aptasensor detection of MDPV. In this study, we developed an ssDNA aptamer using the filtration partition and lambda exonuclease method with an affinity-based monitor and counter-screening process. After 15 rounds of SELEX (systematic evolution of ligands by exponential enrichment), the ssDNA aptamer Apt-10, which specifically bound to MDPV with high affinity (Kd = 467nM) was successfully screened, and the aptamer was also found to be good specific to MDPV...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28915665/the-ketogenic-diet-is-not-feasible-as-a-therapy-in-a-cd-1-nu-nu-mouse-model-of-renal-cell-carcinoma-with-features-of-stauffer-s-syndrome
#8
Silvia Vidali, Sepideh Aminzadeh-Gohari, René Günther Feichtinger, Renaud Vatrinet, Andreas Koller, Felix Locker, Tricia Rutherford, Maura O'Donnell, Andrea Stöger-Kleiber, Bridget Lambert, Thomas Klaus Felder, Wolfgang Sperl, Barbara Kofler
The ketogenic diet (KD), a high-fat low-carbohydrate diet, has shown some efficacy in the treatment of certain types of tumors such as brain tumors and neuroblastoma. These tumors are characterized by the Warburg effect. Because renal cell carcinoma (RCC) presents similar energetic features as neuroblastoma, KD might also be effective in the treatment of RCC. To test this, we established xenografts with RCC 786-O cells in CD-1 nu/nu mice and then randomized them to a control diet or to KDs with different triglyceride contents...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915401/the-modified-ketogenic-diet-for-adults-with-refractory-epilepsy-an-evaluation-of-a-set-up-service
#9
Kirsty J Martin-McGill, Michael D Jenkinson, Catrin Tudur Smith, Anthony G Marson
PURPOSE: The ketogenic diet (KD) has been proven to be effective in children with refractory epilepsy and is recommended by the National Institute of Health and Care Excellence (NICE). There is no randomised control trial (RCT) evidence for the clinical or cost effectiveness of KD in adults, for whom the KD is not currently recommended. We assessed the feasibility of the modified ketogenic diet (MKD) in adults with refractory epilepsy along with the willingness of patients to participate in a future RCT...
September 1, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28914762/the-1-week-and-8-month-effects-of-a-ketogenic-diet-or-ketone-salt-supplementation-on-multi-organ-markers-of-oxidative-stress-and-mitochondrial-function-in-rats
#10
Wesley C Kephart, Petey W Mumford, Xuansong Mao, Matthew A Romero, Hayden W Hyatt, Yufeng Zhang, Christopher B Mobley, John C Quindry, Kaelin C Young, Darren T Beck, Jeffrey S Martin, Danielle J McCullough, Dominic P D'Agostino, Ryan P Lowery, Jacob M Wilson, Andreas N Kavazis, Michael D Roberts
We determined the short- and long-term effects of a ketogenic diet (KD) or ketone salt (KS) supplementation on multi-organ oxidative stress and mitochondrial markers. For short-term feedings, 4 month-old male rats were provided isocaloric amounts of KD (n = 10), standard chow (SC) (n = 10) or SC + KS (~1.2 g/day, n = 10). For long-term feedings, 4 month-old male rats were provided KD (n = 8), SC (n = 7) or SC + KS (n = 7) for 8 months and rotarod tested every 2 months. Blood, brain (whole cortex), liver and gastrocnemius muscle were harvested from all rats for biochemical analyses...
September 15, 2017: Nutrients
https://www.readbyqxmd.com/read/28913661/discovery-of-non-peptidic-small-molecule-inhibitors-of-cyclophilin-d-as-neuroprotective-agents-in-a%C3%AE-induced-mitochondrial-dysfunction
#11
Insun Park, Ashwini M Londhe, Ji Woong Lim, Beoung-Geon Park, Seo Yun Jung, Jae Yeol Lee, Sang Min Lim, Kyoung Tai No, Jiyoun Lee, Ae Nim Pae
Cyclophilin D (CypD) is a mitochondria-specific cyclophilin that is known to play a pivotal role in the formation of the mitochondrial permeability transition pore (mPTP).The formation and opening of the mPTP disrupt mitochondrial homeostasis, cause mitochondrial dysfunction and eventually lead to cell death. Several recent studies have found that CypD promotes the formation of the mPTP upon binding to β amyloid (Aβ) peptides inside brain mitochondria, suggesting that neuronal CypD has a potential to be a promising therapeutic target for Alzheimer's disease (AD)...
September 14, 2017: Journal of Computer-aided Molecular Design
https://www.readbyqxmd.com/read/28910746/transport-of-imidazolium-based-ionic-liquids-with-different-anion-cation-species-in-sand-soil-columns
#12
Zhiqiang Dong, Li Wei, Suwei Xu, Jingwei Sun, Xinyi Shi, Yuping Qiu
Ionic liquids (ILs) have been widely used as environmentally friendly solvents to replace volatile organic solvents in the chemistry industries. They have a high water solubility and potential risk to organisms in the soil-water environment. At present, most studies focused on the batch sorption of ILs in soil and neglected the investigation of IL transports in soil, which results in a lack of understanding of the structure-dependent mobility of ILs in the environment. Laboratory-scale sand/soil column experiments were performed to study the transport of imidazolium-based ILs, such as [C4mim][OTF], [C4mim][TOS], [C4mim][MeSO3], [C4mim][BF4], [C2mim][BF4], and [C6mim][BF4] including different counteranions and alkyl chain lengths of IL cations...
September 11, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28910723/sorption-desorption-equilibrium-and-diffusion-of-tetracycline-in-poultry-litter-and-municipal-biosolids-soil-amendments
#13
E D'Angelo
Tetracycline (TET) is commonly used to treat bacterial diseases in humans and chickens (Gallus gallus domesticus), is largely excreted, and is found at elevated concentrations in treated sewage sludge (biosolids) and poultry litter (excrement plus bedding materials). Routine application of these nutrient-and carbon-enriched materials to soils improves fertility and other characteristics, but the presence of antibiotics (and other pharmaceuticals) in amendments raises questions about potential adverse effects on biota and development of antibiotic resistance in the environment...
September 8, 2017: Chemosphere
https://www.readbyqxmd.com/read/28906430/identification-of-a-novel-inhibitor-against-middle-east-respiratory-syndrome-coronavirus
#14
Yaping Sun, Huaidong Zhang, Jian Shi, Zhe Zhang, Rui Gong
The Middle East respiratory syndrome coronavirus (MERS-CoV) was first isolated in 2012, and circulated worldwide with high mortality. The continual outbreaks of MERS-CoV highlight the importance of developing antiviral therapeutics. Here, we rationally designed a novel fusion inhibitor named MERS-five-helix bundle (MERS-5HB) derived from the six-helix bundle (MERS-6HB) which was formed by the process of membrane fusion. MERS-5HB consists of three copies of heptad repeat 1 (HR1) and two copies of heptad repeat 2 (HR2) while MERS-6HB includes three copies each of HR1 and HR2...
September 14, 2017: Viruses
https://www.readbyqxmd.com/read/28906351/prevalence-evolution-and-related-risk-factors-of-kidney-disease-among-spanish-hiv-infected-individuals
#15
Javier Juega-Mariño, Anna Bonjoch, Nuria Pérez-Alvarez, Eugenia Negredo, Beatriu Bayes, Josep Bonet, Buenaventura Clotet, Ramon Romero
Prevalence of kidney disease (KD) is increasing among human immunodeficiency virus (HIV)-infected population. Different factors have been related, varying on different published series.The objectives were to study prevalence of KD in those patients, its evolution, and associated risk factors.An observational cohort study of 1596 HIV-positive patients with cross-sectional data collection in 2008 and 2010 was conducted. We obtained clinical and laboratory markers, and registered previous or current treatment with tenofovir (TDF) and indinavir (IDV)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28905639/clinical-manifestations-of-kawasaki-disease-shock-syndrome
#16
Le Ma, Ya-Yuan Zhang, Hai-Guo Yu
A case-control study was performed to ascertain clinical features of children who had been diagnosed as Kawasaki disease shock syndrome (KDSS), a severe condition related to Kawasaki disease (KD). Hospitalized patients were selected in Nanjing Children's Hospital. Demographic characteristics, clinical presentation, laboratory data, cardiovascular findings, and therapies were analyzed. Compared with the control group, KDSS patients were older and had more serious skin rash. The proportions of leukocytosis, neutrophilia, and hypoalbuminemia was higher, as was the level of while blood cell count, C-reactive protein, brain natriuretic peptide, and ferroprotein...
September 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28905435/isatin-induced-increase-in-the-affinity-of-human-ferrochelatase-and-adrenodoxin-reductase-interaction
#17
Pavel Ershov, Yuri Mezentsev, Andrey Gilep, Sergey Usanov, Olga Buneeva, Alexei Medvedev, Alexis Ivanov
Isatin (indol-2,3-dione) is an endogenous non-peptide regulator exhibiting a wide range of biological and pharmacological activities, which are poorly characterized in terms of their molecular mechanisms. Identification of many isatin-binding proteins in the mammalian brain and liver suggests that isatin may influence their functions. We have hypothesized that besides direct action on particular protein targets, isatin can act as a regulator of protein-protein interactions (PPIs). In this SPR-based biosensor study we have found that physiologically relevant concentrations of isatin (25-100 μM) increase affinity of interactions between human recombinant ferrochelatase (FECH) and NADPH-dependent adrenodoxin reductase (ADR)...
September 14, 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28905402/affinity-capillary-electrophoresis-for-the-assessment-of-binding-affinity-of-carbohydrate-based-cholera-toxin-inhibitors
#18
Oier Aizpurua-Olaizola, Javier Sastre Torano, Aliaksei Pukin, Ou Fu, Geert Jan Boons, Gerhardus J de Jong, Roland J Pieters
Developing tools for the study of protein carbohydrate interactions is an important goal in glycobiology. Cholera toxin inhibition is an interesting target in this context, as its inhibition may help the fight against cholera. For the study of novel ligands an affinity capillary electrophoresis (ACE) method was optimised and applied. The method uses unlabeled cholera toxin B-subunit (CTB) and unlabeled carbohydrate ligands based on ganglioside GM1-oligosaccharides (GM1os). In an optimized method at pH 4, adsorption of the protein to the capillary walls was prevented by a polybrene-dextran sulfate-polybrene (PB-DS-PB) coating...
September 14, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28903849/acute-complete-adult-onset-kawasaki-disease-in-a-middle-aged-woman
#19
Jiu Chen, Youdi Li
A 55-year-old Chinese lady was diagnosed with acute complete Kawasaki disease (KD) in January 2015. To our knowledge, this patient was the first described woman who was over 50 years and fulfilled all the characteristics of acute complete KD. The patient had a striking result on the 26th day since this disease onset after the initiation of treatment of immunoglobulin (IG) and aspirin; and did not have any complications up to now. The purpose of this case report was to raise the awareness of KD in the middle-aged persons and the therapeutic schedules, as there is no valid therapeutic therapeutic for adults with KD...
August 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28903347/retrospective-analysis-of-risk-factors-associated-with-kawasaki-disease-in-china
#20
Lihua Bai, Tienan Feng, Lifang Yang, Yi Zhang, Xuejuan Jiang, Jiayao Liao, Lihua Chen, Xiaoyan Feng, Yanming Rong, Yuehua Li, Zhiqiang Qin, Jing Qiao
In order to provide early intervention for coronary artery lesion (CAL) caused by Kawasaki Disease (KD), we analyzed clinical characteristics of typical and incomplete KD cases from 1998 to 2008 in Northwest and Central China. A total of 383 patients included 298 cases of typical KD and 85 cases of incomplete KD. The morbidity of incomplete KD was 28.5%, a percentage significantly lower than that of typical KD. The occurrence of bulbar conjunctiva congestion, erythra, crissum red, film-like decrustation, lip red, rhagades, raspberry tongue, bilateral toe-end decrustation, limb sclerosis, cervical lymph nodes enlargement, agitation and irritability in incomplete KD group was lower than that in the group of typical KD (p < 0...
August 15, 2017: Oncotarget
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