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https://www.readbyqxmd.com/read/28732057/structural-basis-of-zn-ii-induced-metal-detoxification-and-antibiotic-resistance-by-histidine-kinase-czcs-in-pseudomonas-aeruginosa
#1
Dan Wang, Weizhong Chen, Shanqing Huang, Yafeng He, Xichun Liu, Qingyuan Hu, Tianbiao Wei, Hong Shang, Jianhua Gan, Hao Chen
Pseudomonas aeruginosa (P. aeruginosa) is a major opportunistic human pathogen, causing serious nosocomial infections among immunocompromised patients by multi-determinant virulence and high antibiotic resistance. The CzcR-CzcS signal transduction system in P. aeruginosa is primarily involved in metal detoxification and antibiotic resistance through co-regulating cross-resistance between Zn(II) and carbapenem antibiotics. Although the intracellular regulatory pathway is well-established, the mechanism by which extracellular sensor domain of histidine kinase (HK) CzcS responds to Zn(II) stimulus to trigger downstream signal transduction remains unclear...
July 21, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28727710/management-of-symptomatic-tarlov-cysts-a-retrospective-observational-study
#2
Wei Jiang, Zhenming Hu, Jie Hao
BACKGROUND: Symptomatic Tarlov cysts are a common cause of chronic pain. Many methods have been reported to treat this disease, with variable results. Most previous reports concerning the treatment methods of symptomatic Tarlov cysts were either sporadic case reports or series of limited cases. OBJECTIVE: This study aimed to further optimize the management for patients with symptomatic Tarlov cysts (TCs) by analyzing the results of 82 patients who were treated with different strategies...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28726052/transcranial-sonography-image-characteristics-in-different-parkinson-s-disease-subtypes
#3
Ai Yan Sheng, Ying Chun Zhang, Yu Jing Sheng, Cai Shan Wang, Ying Zhang, Hua Hu, Wei Feng Luo, CHun-Feng LIu
Recently, Parkinson's disease (PD) has been classified into three subtypes: postural instability gait difficulty (PIGD), tremor dominate (TD), and indeterminate PD. Transcranial sonography (TCS) is considered to be an important tool to diagnose PD. However, it is uncertain that whether there are differences in TCS image characteristics in different PD subtypes, so 373 idiopathic PD (188 PIGD, 108 TD, 77 indeterminate PD) were registered and received TCS in our investigation; also, the association between clinical characteristics and TCS results in different PD subtypes was analyzed...
July 19, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28725299/role-of-streptococcus-mutans-two-component-systems-in-antimicrobial-peptide-resistance-in-the-oral-cavity
#4
REVIEW
Miki Kawada-Matsuo, Hitoshi Komatsuzawa
Approximately 100 trillion microorganisms exist in the oral cavity. For the commensal bacteria of the oral cavity, it is important to adapt to environmental stimuli, including human- or bacteria-derived antimicrobial agents. Recently, bacterial-specific signal transduction regulatory systems, called two-component systems (TCSs), which appear to be focused on sensing and adapting to the environment, were discovered. Streptococcus mutans is an oral commensal bacteria and is also known as a cariogenic bacteria...
August 2017: Japanese Dental Science Review
https://www.readbyqxmd.com/read/28724128/topical-corticosteroid-phobia-in-atopic-dermatitis-a-systematic-review
#5
Alvin W Li, Emily S Yin, Richard J Antaya
Importance: Topical corticosteroid (TCS) phobia refers to the negative feelings and beliefs related to TCSs experienced by patients and patients' caregivers. This phenomenon may be a major contributing factor in treatment failure in patients with atopic dermatitis, yet it has been sparsely described in the literature. Objective: To systematically assess the nomenclature, prevalence, origins, and effect on treatment adherence of TCS phobia in atopic dermatitis. Evidence Review: A literature search was conducted using specific eligibility criteria across electronic databases, including Ovid (MEDLINE, EMBASE), PubMed, and Web of Science, for articles published from January 1, 1946, to October 31, 2016...
July 19, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28723666/increased-cflip-expression-in-thymic-epithelial-tumors-blocks-autophagy-via-nf-%C3%AE%C2%BAb-signalling
#6
Djeda Belharazem, Albert Grass, Cornelia Paul, Mario Vitacolonna, Berthold Schalke, Ralf J Rieker, Daniel Körner, Philipp Jungebluth, Katja Simon-Keller, Peter Hohenberger, Eric M Roessner, Karsten Wiebe, Thomas Gräter, Thomas Kyriss, German Ott, Peter Geserick, Martin Leverkus, Philipp Ströbel, Alexander Marx
The anti-apoptotic cellular FLICE-like inhibitory protein cFLIP plays a pivotal role in normal tissues homoeostasis and the development of many tumors, but its role in normal thymus (NT), thymomas and thymic carcinomas (TC) is largely unknown.Expression, regulation and function of cFLIP were analyzed in biopsies of NT, thymomas, thymic squamous cell carcinomas (TSCC), thymic epithelial cells (TECs) derived thereof and in the TC line 1889c by qRT-PCR, western blot, shRNA techniques, and functional assays addressing survival, senescence and autophagy...
February 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722254/determination-of-irritant-threshold-concentrations-of-multiple-tree-grass-weed-and-mould-allergens-for-intradermal-testing-of-horses-residing-in-the-southern-usa
#7
Martha J Lane, Cherie M Pucheu-Haston, Michael T Kearney, Michelle Woodward
BACKGROUND: Appropriate allergen threshold concentrations (TCs) for intradermal testing (IDT) have not been established in horses for many pollen and mould allergens. OBJECTIVES: To determine the TCs in non-allergic horses and describe the frequency of late phase reactions for 26 allergens, including trees, grasses, weeds and moulds in horses residing in the southern Unites States. ANIMALS: Twenty four clinically normal horses in the southern United States...
July 18, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28716306/tertiary-cytoreductive-surgery-in-recurrent-epithelial-ovarian-cancer-a-multicentre-mito-retrospective-study
#8
F Falcone, G Scambia, P Benedetti Panici, M Signorelli, G Cormio, G Giorda, S Bogliolo, M Marinaccio, F Ghezzi, E Rabaiotti, E Breda, G Casella, F Fanfani, V Di Donato, U Leone Roberti Maggiore, S Greggi
OBJECTIVES: To evaluate the impact of tertiary cytoreductive surgery (TCS) on survival in recurrent epithelial ovarian cancer (EOC), and to determine predictors of complete cytoreduction. METHODS: A multi-institutional retrospective study was conducted within the MITO Group on a 5-year observation period. RESULTS: A total of 103 EOC patients with a ≥6month treatment-free interval (TFI) undergoing TCS were included. Complete cytoreduction was achieved in 71 patients (68...
July 14, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28712089/increased-recruitment-of-cognitive-control-in-the-presence-of-traumatic-stimuli-in-complex-ptsd
#9
Julia I Herzog, Inga Niedtfeld, Sophie Rausch, Janine Thome, Meike Mueller-Engelmann, Regina Steil, Kathlen Priebe, Martin Bohus, Christian Schmahl
A neurocircuitry model of post-traumatic stress disorder (PTSD) suggests increased amygdala responses to emotional stimuli, coupled with hypoactivation of prefrontal regions associated with cognitive control. However, results are heterogenous across different subsamples of PTSD as well as different paradigms. We investigated cognitive control in a classic and emotional Stroop task in 28 female patients with complex PTSD (cPTSD), 28 female trauma-exposed healthy controls (TCs) and 28 female non-trauma-exposed healthy controls (HCs) using functional neuroimaging...
July 15, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28708930/effects-of-high-intensity-aerobic-interval-training-on-cardiovascular-disease-risk-in-testicular-cancer-survivors-a-phase-2-randomized-controlled-trial
#10
Scott C Adams, Darren S DeLorey, Margie H Davenport, Michael K Stickland, Adrian S Fairey, Scott North, Alexander Szczotka, Kerry S Courneya
BACKGROUND: Testicular cancer survivors (TCS) have an increased risk of treatment-related cardiovascular disease (CVD), which may limit their overall survival. We evaluated the effects of high-intensity aerobic interval training (HIIT) on traditional and novel CVD risk factors and surrogate markers of mortality in a population-based sample of TCS. METHODS: This phase 2 trial (ClinicalTrials.gov identifier NCT02459132) randomly assigned 63 TCS to usual care (UC) or 12 weeks of supervised HIIT (ie, alternating periods of vigorous-intensity and light-intensity aerobic exercise)...
July 14, 2017: Cancer
https://www.readbyqxmd.com/read/28707517/joint-effect-of-triclosan-and-copper-nanoparticles-on-wastewater-biological-nutrient-removal
#11
Hong Chen, Yuying Cheng, Di Meng, Gang Xue, Mingji Jiang, Xiang Li
Triclosan (TCS) is widely used in household and personal care products, and its release to wastewater might have impact on wastewater biological treatment due to its broad-spectrum antibacterial property. In addition, emerging pollutant such as copper nanoparticles (CuNPs) will release as well from nanoparticle-containing products, and show joint effect with TCS on biological nutrient removal. It was found that TCS of 1 mg/L and 10 mg/L could inhibit the nitrosification and nitrification stage, and the first step of denitrification was supressed as well, resulting in the final total nitrogen removal efficiency decline...
July 14, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28707196/reversible-association-of-the-hemagglutinin-subcomplex-ha-33-ha-17-trimer-with-the-botulinum-toxin-complex
#12
Yoshimasa Sagane, Shingo Mutoh, Ryosuke Koizumi, Tomonori Suzuki, Shin-Ichiro Miyashita, Keita Miyata, Tohru Ohyama, Koichi Niwa, Toshihiro Watanabe
Botulinum neurotoxin (BoNT) associates with nontoxic proteins, either a nontoxic nonhemagglutinin (NTNHA) or the complex of NTNHA and hemagglutinin (HA), to form M- or L-toxin complexes (TCs). Single BoNT and NTNHA molecules are associated and form M-TC. A trimer of the 70-kDa HA protein (HA-70) attaches to the M-TC to form M-TC/HA-70. Further, 1-3 arm-like 33- and 17-kDa HA molecules (HA-33/HA-17 trimer), consisting of 1 HA-17 protein and 2 HA-33 proteins, can attach to the M-TC/HA-70 complex, yielding 1-, 2-, and 3-arm L-TC...
July 13, 2017: Protein Journal
https://www.readbyqxmd.com/read/28703916/down-regulation-of-microrna-let-7d-inhibits-the-proliferation-and-invasion-of-trophoblast-cells-in-preeclampsia
#13
Xu Dai, Yan Cai
Preeclampsia (PE) is a serious pregnancy complication that continues to adverse effects on mother and the fetus. The study investigated the effect of microRNA let-7d (miR-let-7d) on the proliferation and invasion of trophoblast cells (TC) in PE. In situ hybridization techniques were employed to evaluate the miR-let-7d expressions in the placental tissues from 63 PE patients as well as 65 normal placental tissues. Transfection of pre-let-7d, anti-let-7d and their corresponding control sequences was performed in TCs obtained from PE...
July 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28699429/the-order-of-administration-of-macrolides-and-beta-lactams-may-impact-the-outcomes-of-hospitalized-patients-with-community-acquired-pneumonia-results-from-the-community-acquired-pneumonia-organization
#14
Paula Peyrani, Timothy L Wiemken, Mark L Metersky, Forest W Arnold, William A Mattingly, Charles Feldman, Rodrigo Cavallazzi, Rafael Fernandez-Botran, Jose Bordon, Julio A Ramirez
BACKGROUND: The beneficial effect of macrolides for the treatment of community-acquired pneumonia (CAP) in combination with beta-lactams may be due to their anti-inflammatory activity. In patients with pneumococcal meningitis, the use of steroids improves outcomes only if they are administered before beta-lactams. The objective of this study was to compare outcomes in hospitalized patients with CAP when macrolides were administered before, simultaneously with, or after beta-lactams. METHODS: Secondary data analysis of the Community-Acquired Pneumonia Organization (CAPO) International Cohort Study database...
July 12, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28696185/in-vitro-evaluation-of-antisense-oligonucleotide-functionalized-core-shell-nanoparticles-loaded-with-%C3%AE-tocopherol-succinate
#15
Ebru Kilicay, Zeynep Karahaliloglu, Pınar Alpaslan, Baki Hazer, Emir Baki Denkbas
Antisense oligonucleotide (ASO)-conjugated-α-tocopherol succinate (TCS)-loaded-poly(lactic acid)-g-poly(ethylene glycol) nanoparticles (ASO-TCS-PLA-PEG NPs), with the ratio of polymer/TCS of 10:2.5, 10:5, 10:7 (w/w) were prepared for targeting cancer therapy. The amphiphilic PLA, amino terminated PEG graft copolymers were synthesized by ring opening polymerization reaction. Nanoparticles were produced by using double emulsion (w/o/w) solvent evaporation method. ASO-TCS-PLA-PEG NPs demonstrated satisfactory encapsulation and loading efficiency and size distribution...
July 11, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28694666/clinical-importance-of-colonoscopy-in-patients-with-gastric-neoplasm-undergoing-endoscopic-submucosal-dissection
#16
Chieko Tsuchida, Naoto Yoshitake, Hitoshi Kino, Yoshihito Kaneko, Masakazu Nakano, Kohei Tsuchida, Keiichi Tominaga, Takako Sasai, Hironori Masuyama, Hidetsugu Yamagishi, Yasuo Imai, Hideyuki Hiraishi
AIM: To evaluate the usefulness of total colonoscopy (TCS) for patients undergoing gastric endoscopic submucosal dissection (ESD) and to assess risk factors for colorectal neoplasms. METHODS: Of the 263 patients who underwent ESD at our department between May 2010 and December 2013, 172 patients undergoing TCS during a one-year period before and after ESD were targeted. After excluding patients with a history of surgery or endoscopic therapy for colorectal neoplasms, 158 patients were analyzed...
June 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28691420/recent-advances-in-tissue-conditioners-for-prosthetic-treatment-a-review
#17
REVIEW
Barbara Dorocka-Bobkowska, Dominik Medynski, Mariusz Prylinski
Tissue conditioners (TCs) are short term soft liners, formed in situ from the mixture of a polymer powder and a liquid plasticizer. The article reviews recent advances in composition, functions, clinical use, gelation process, and physical properties of TCs and their effects on denture bases and oral mucosa. TCs are used to improve the fit and function of an ill-fitting denture. They can also be used to treat abused mucosal tissues underlying ill-fitting acrylic dentures as temporary expedients. TCs are recommended as provisional liners to maintain the fit of removable dentures and to prevent mechanical irritation from the denture...
June 27, 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28688846/evaluation-of-nitrate-effects-in-the-aqueous-photodegradability-of-selected-phenolic-pollutants
#18
G Castro, I Rodríguez, M Ramil, R Cela
The effect of nitrate in the aqueous photodegradation of five phenolic environmental pollutants (ortho-phenylphenol, OPP; methyl paraben, MeP; propyl paraben, PrP; Triclosan, TCS and bisphenol A, BPA) is evaluated. Time-course of precursor compounds and formation of transformation products (TPs) were investigated by liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS). Nitrate showed a positive effect in the removal of selected pollutants. Observed TPs resulted from hydroxylation, aromatic nitration (with or without molecule cleavage) and nitro dehalogenation processes...
July 3, 2017: Chemosphere
https://www.readbyqxmd.com/read/28677390/quantitative-proteomics-reveals-potential-crosstalk-between-a-small-rna-coar-and-a-two-component-regulator-slr1037-in-synechocystis-sp-pcc6803
#19
Tao Sun, Lei Chen, Weiwen Zhang
Bacterial small RNAs (sRNAs) and two-component systems (TCSs) were two vital regulatory mechanisms employed by microorganisms to respond to environmental changes and stresses. As a promising "autotrophic cell factory", photosynthetic cyanobacteria have attracted a lot of concentrations these years. Though most studies focused on studying the roles of sRNAs or TCS regulators in stress response in photosynthetic cyanobacteria, limited work has elucidated their potential crosstalk. Our previous work has identified a negative sRNA regulator CoaR and a positive response regulator Slr1037 both related with 1-butanol stress regulation in Synechocystis sp...
July 5, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28674072/counterbalancing-regulation-in-response-memory-of-a-positively-autoregulated-two-component-system
#20
Rong Gao, Katherine A Godfrey, Mahir A Sufian, Ann M Stock
Fluctuations in nutrient availability often result in recurrent exposures to the same stimulus condition. The ability to memorize the past event and use the "memory" to make adjustments to current behaviors can lead to more efficient adaptation to the recurring stimulus. A short-term phenotypic memory can be conferred via carry-over of the response proteins to facilitate the recurrent response but the additional accumulation of response proteins can lead to deviation from response homeostasis. We used the Escherichia coli PhoB/PhoR two-component system (TCS) as a model system to study how cells cope with the recurrence of Pi starvation conditions...
July 3, 2017: Journal of Bacteriology
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