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https://www.readbyqxmd.com/read/28749130/fluorination-of-boron-doped-diamond-film-electrodes-for-minimization-of-perchlorate-formation
#1
Pralay Gayen, Brian P Chaplin
This research investigated the effects of surface fluorination on both rates of organic compound oxidation (phenol, terephthalic acid (TA)) and ClO4(-) formation at boron-doped diamond (BDD) film anodes at 22(o) C. Different fluorination methods (i.e., electrochemical oxidation with perfluorooctanoic acid (PFOA), radio frequency plasma, and silanization) were used to incorporate fluorinated moieties on the BDD surface, which was confirmed by X-ray photoelectron spectroscopy (XPS). The silanization method was found to be the most effective fluorination method using a 1H, 1H, 2H, 2H perfluorodecyltrichlorosilane (aliphatic silane) precursor to form a self assembled monolayer (SAM) on the oxygenated BDD surface...
July 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28748717/in-response-to-balancing-the-risks-and-benefits-of-medication-organizers
#2
George Sam Wang, Jason Hoppe, Lina Brou, Kennon Heard
No abstract text is available yet for this article.
July 27, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28748683/erratum-to-the-kmds-nation-study-korean-movement-disorders-society-multicenter-assessment-of-non-motor-symptoms-and-quality-of-life-in-parkinson-s-disease-nation-study-group
#3
Do Young Kwon, Seong Beom Koh, Jae Hyeok Lee, Hee Kyung Park, Han Joon Kim, Hae Won Shin, Jinyoung Youn, Kun Woo Park, Sun Ah Choi, Sang Jin Kim, Seong Min Choi, Ji Yun Park, Beom S Jeon, Ji Young Kim, Sun Ju Chung, Chong Sik Lee, Jeong Ho Park, Tae Beom Ahn, Won Chan Kim, Hyun Sook Kim, Sang Myung Cheon, Hee Tae Kim, Jee Young Lee, Ji Sun Kim, Eun Joo Kim, Jong Min Kim, Kwang Soo Lee, Joong Seok Kim, Min Jeong Kim, Jong Sam Baik, Ki Jong Park, Hee Jin Kim, Mee Young Park, Ji Hoon Kang, Sook Kun Song, Yong Duk Kim, Ji Young Yun, Ho Won Lee, Hyung Geun Oh, Jinwhan Cho, In Uk Song, Young H Sohn, Phil Hyu Lee, Jae Woo Kim
This corrects the article on p. 393 in vol. 12, PMID: 27819413.
July 2017: Journal of Clinical Neurology
https://www.readbyqxmd.com/read/28747933/i-think-i-m-going-to-be-sick-an-eight-year-old-boy-with-emetophobia-and-secondary-food-restriction
#4
Sarabpreet Dosanjh, William Fleisher, Diana Sam
We present a case of an eight-year-old boy with a specific phobia of vomiting who developed subsequent food restriction and weight loss. Our case report includes a review of treatment modalities for specific phobias including cognitive behavioural and exposure therapy in young children and the importance of parental involvement in the treatment process. After an initial assessment and diagnosis of this boy with emetophobia, treatment took place over ten subsequent visits, one hour each in duration. His treatment included a cognitive approach utilizing exposure therapy to re-introduce foods to his diet, working through a fear hierarchy, addressing cognitive distortions/misconceptions and psychoeducational supports...
July 2017: Journal of the Canadian Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28747753/corrigendum-protein-structure-guided-discovery-of-functional-mutations-across-19-cancer-types
#5
Beifang Niu, Adam D Scott, Sohini Sengupta, Matthew H Bailey, Prag Batra, Jie Ning, Matthew A Wyczalkowski, Wen-Wei Liang, Qunyuan Zhang, Michael D McLellan, Sam Q Sun, Piyush Tripathi, Carolyn Lou, Kai Ye, R Jay Mashl, John Wallis, Michael C Wendl, Feng Chen, Li Ding
No abstract text is available yet for this article.
July 27, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28747699/osfh15-a-class-i-formin-interacts-with-microfilaments-and-microtubules-to-regulate-grain-size-via-affecting-cell-expansion-in-rice
#6
Tiantian Sun, Shanwei Li, Haiyun Ren
Grain size is an important agronomic trait determining rice yield and is mainly restricted by spikelet hull size. However, it remains largely unknown how the spikelet hull size is regulated. In this study, OsFH15, a class I formin protein in Oryza sativa, was found to be able to regulate the size of cells and spikelet hull. OsFH15-Cas9 and OsFH15-RNAi mutants had decreased grain size with reduced cell length, cell width and cell area of inner epidermal cells of the lemma compared with wild-type plants. By contrast, OsFH15-overexpressed plants had increased grain size with larger cells, as well as more abundant microtubules (MTs) and actin filaments (AFs) arrays...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28747433/efficient-methylation-of-c2-in-l-tryptophan-by-the-cobalamin-dependent-radical-s-adenosylmethionine-methylase-tsrm-requires-an-unmodified-n1-amine
#7
Anthony J Blaszczyk, Bo Wang, Alexey Silakov, Jackson V Ho, Squire J Booker
TsrM catalyzes the methylation of C2 in Ltryptophan (Trp). This reaction is the first step in the biosynthesis of the quinaldic acid moiety of the thiopeptide antibiotic thiostrepton, which exhibits potent activity against Gram-positive pathogens. TsrM is a member of the radical S-adenosylmethionine (SAM) superfamily of enzymes, but does not catalyze formation of 5'-deoxyadenosin-5'-yl or any other SAM-derived radical. In addition to a [4Fe-4S] cluster, TsrM contains a cobalamin cofactor that serves as an intermediate methyl carrier in its reaction...
July 26, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28747430/ferredoxin-reductase-is-critical-for-p53-dependent-tumor-suppression-via-iron-regulatory-protein-2
#8
Yanhong Zhang, Yingjuan Qian, Jin Zhang, Wensheng Yan, Yong-Sam Jung, Mingyi Chen, Eric Huang, Kent Lloyd, Yuyou Duan, Jian Wang, Gang Liu, Xinbin Chen
Ferredoxin reductase (FDXR), a target of p53, modulates p53-dependent apoptosis and is necessary for steroidogenesis and biogenesis of iron-sulfur clusters. To determine the biological function of FDXR, we generated a Fdxr-deficient mouse model and found that loss of Fdxr led to embryonic lethality potentially due to iron overload in developing embryos. Interestingly, mice heterozygous in Fdxr had a short life span and were prone to spontaneous tumors and liver abnormalities, including steatosis, hepatitis, and hepatocellular carcinoma...
July 26, 2017: Genes & Development
https://www.readbyqxmd.com/read/28746845/cooperation-between-magnesium-and-metabolite-controls-collapse-of-the-sam-i-riboswitch
#9
Susmita Roy, José N Onuchic, Karissa Y Sanbonmatsu
The S-adenosylmethionine (SAM)-I riboswitch is a noncoding RNA that regulates the transcription termination process in response to metabolite (SAM) binding. The aptamer portion of the riboswitch may adopt an open or closed state depending on the presence of metabolite. Although the transition between the open and closed states is critical for the switching process, its atomistic details are not well understood. Using atomistic simulations, we calculate the effect of SAM and magnesium ions on the folding free energy landscape of the SAM-I riboswitch...
July 25, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28746218/localized-nasopharyngeal-amyloidosis-mimicking-malignancy-a-case-report
#10
Jong Seung Kim, Sam Hyun Kwon
RATIONALE: Nasopharyngeal amyloidosis is a benign, slowly progressive disease that is characterized by extracellular eosinophilic deposition. PATIENT CONCERNS: We report a rare case of localized nasopharyngeal amyloidosis. DIAGNOSES: The initial chief complaint of this patient was frequent epistaxis and right aural fullness. The initial diagnosis was nasopharyngeal tumor. INTERVENTIONS: There is no universally effective medical treatment for nasopharyngeal amyloidosis but surgery can be an option...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28745969/creating-workforce-transformation
#11
Sam Foster
Sam Foster, Chief Nurse at Heart of England NHS Foundation Trust, looks at opportunities for continuing professional development, which is key for both recruitment and retention.
July 27, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28743918/active-tuberculosis-incidence-and-characteristics-in-patients-treated-with-tumor-necrosis-factor-antagonists-according-to-latent-tuberculosis-infection
#12
Eun Hye Lee, Young Ae Kang, Ah Young Leem, Moo Suk Park, Young Sam Kim, Se Kyu Kim, Joon Chang, Song Yee Kim
This study aimed to determine the incidence and characteristics of active tuberculosis (TB) in patients treated with tumor necrosis factor (TNF) antagonists according to baseline latent tuberculosis infection (LTBI). Data were retrospectively obtained from 702 patients aged ≥20 years treated with TNF antagonists between November 2005 and June 2016 at Severance Hospital, a tertiary referral hospital in Seoul, South Korea. The interferon-gamma release assay (IGRA) with or without a tuberculin skin test (TST) was used to diagnose LTBI...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28743878/an-all-in-one-unisam-vector-system-for-efficient-gene-activation
#13
Antonella Fidanza, Martha Lopez-Yrigoyen, Nicola Romanò, Rhiannon Jones, A Helen Taylor, Lesley M Forrester
We have generated a drug-free, all-in-one dCAS9-SAM vector that can activate endogenous gene expression with the potential to modify cell fate. We demonstrate that this strategy can be used in a number of cell lines and avoids exceptionally high levels of gene expression that are observed in standard transgenic approaches. Compared to the multi-plasmid system, this all-in-one vector activates gene expression to a comparable level but the reduced overall DNA content results in significantly higher viability of transfected cells...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28743499/all-trans-retinoic-acid-attenuates-bleomycin-induced-pulmonary-fibrosis-via-downregulating-epha2-ephrina1-signaling
#14
Ah Young Leem, Mi Hwa Shin, Ivor S Douglas, Joo Han Song, Kyung Soo Chung, Eun Young Kim, Ji Ye Jung, Young Ae Kang, Joon Chang, Young Sam Kim, Moo Suk Park
The role of all-trans retinoic acid (ATRA) in pulmonary fibrosis is relatively unknown, although this metabolite modulates cell differentiation, proliferation, and development. We aimed to evaluate the role of ATRA in bleomycin-induced pulmonary fibrosis, and whether the mechanism involves EphA2-EphrinA1 and PI3K-Akt signaling. We evaluated three groups of mice: a control group (intraperitoneal DMSO injection 3 times weekly after PBS instillation), bleomycin group (intraperitoneal DMSO injection 3 times weekly after bleomycin instillation), and bleomycin + ATRA group (intraperitoneal ATRA injection 3 times weekly after bleomycin instillation)...
July 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28742144/genome-wide-and-protein-kinase-focused-rnai-screens-reveal-conserved-and-novel-damage-response-pathways-in-trypanosoma-brucei
#15
Jennifer A Stortz, Tiago D Serafim, Sam Alsford, Jonathan Wilkes, Fernando Fernandez-Cortes, Graham Hamilton, Emma Briggs, Leandro Lemgruber, David Horn, Jeremy C Mottram, Richard McCulloch
All cells are subject to structural damage that must be addressed for continued growth. A wide range of damage affects the genome, meaning multiple pathways have evolved to repair or bypass the resulting DNA lesions. Though many repair pathways are conserved, their presence or function can reflect the life style of individual organisms. To identify genome maintenance pathways in a divergent eukaryote and important parasite, Trypanosoma brucei, we performed RNAi screens to identify genes important for survival following exposure to the alkylating agent methyl methanesulphonate...
July 24, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28742015/topical-tranexamic-acid-reduces-transfusion-rates-in-simultaneous-bilateral-total-knee-arthroplasty-a-retrospective-case-series
#16
Christopher Kim, Sam S Park, Herman S Dhotar, Anthony V Perruccio, Michael G Zywiel, J Roderick Davey
BACKGROUND: Topical tranexamic acid (TA) has been reported to be effective in reducing postoperative bleeding and transfusions after TKA. The main objective of this study was to retrospectively assess the effectiveness and safety of topical TA administration in patients undergoing simultaneous bilateral TKA. METHODS: We conducted a retrospective chart review of consecutive cohorts of patients undergoing simultaneous bilateral TKA. We compared the patients who received TA with patients from a similar time frame who did not receive TA...
August 1, 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28741749/clinical-outcomes-after-local-field-conformal-reirradiation-of-patients-with-retropharyngeal-nodal-metastasis
#17
Courtney Pollard, Theresa P Nguyen, Sweet Ping Ng, Steven J Frank, Adam S Garden, Gary B Gunn, Clifton D Fuller, Beth M Beadle, William H Morrison, Shah J Shah, He Wang, Sam Tung, Conjun Wang, Lawrence D Ginsberg, Mark E Zafereo, Erich M Sturgis, Shirley Y Su, Ehab Y Hanna, David I Rosenthal, Jack Phan
BACKGROUND: The purpose of this study was to present our experience with retropharyngeal node reirradiation using highly conformal radiotherapy (RT). METHODS: A retrospective screen of 2504 consecutively irradiated patients with head and neck malignancies between 2005 and 2015 identified 19 patients who underwent reirradiation for retropharyngeal node metastasis. Clinical and toxicity outcomes were assessed in these patients. RESULTS: Thirteen patients (68%) had squamous cell carcinoma...
July 25, 2017: Head & Neck
https://www.readbyqxmd.com/read/28741462/development-of-a-solid-phase-array-assay-for-the-screening-of-galactose-oxidase-activity-and-for-fast-identification-of-inhibitors
#18
Martin J Weissenborn, Damien P Debecker, Bruno Linclau, Nicolas J Turner, Sabine Flitsch
Galactose oxidase catalyses the highly selective oxidation of terminal galactosides on a wide range of natural glycoconjugates and has found wide applications in biotechnology, particularly in biocatalysis. Here we show that the enzyme is able to oxidise solid gold-SAM surfaces functionalised with galactose. This array platform allows for the fast identification of galactose oxidase substrates and inhibitors from a library of deoxy-fluorinated sugars using MALDI-Tof spectrometry as a label -free read-out method...
July 24, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28740917/phase-1-trial-of-preoperative-image-guided-intensity-modulated-proton-radiation-therapy-with-simultaneously-integrated-boost-to-the-high-risk-margin-for-retroperitoneal-sarcomas
#19
Thomas F DeLaney, Yen-Lin Chen, Elizabeth H Baldini, Dian Wang, Judith Adams, Shea B Hickey, Beow Y Yeap, Stephen M Hahn, Karen De Amorim Bernstein, G Petur Nielsen, Edwin Choy, John T Mullen, Sam S Yoon
PURPOSE: To conduct phase 1 and 2 trials with photon intensity modulated radiation therapy and intensity modulated proton therapy (IMPT) arms to selectively escalate the retroperitoneal sarcoma preoperative radiation dose to tumor volume (clinical target volume [CTV] 2) that is judged to be at a high risk for positive margins and aim to reduce local recurrence. We report on the IMPT study arm in phase 1. METHODS AND MATERIALS: Patients aged ≥18 years with primary or locally recurrent retroperitoneal sarcoma were treated with preoperative IMPT, 50...
January 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/28740668/socioeconomic-impact-of-asthma-chronic-obstructive-pulmonary-disease-and-asthma-copd-overlap-syndrome
#20
Jinhee Kim, Young Sam Kim, Kyungjoo Kim, Yeon-Mok Oh, Kwang Ha Yoo, Chin Kook Rhee, Jin Hwa Lee
BACKGROUND: Asthma-chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS) is defined as having both features of asthma and COPD, which are airway hyper-responsiveness and incompletely reversible airway obstruction. However, socioeconomic impact of ACOS have not been well appreciated. METHODS: Adults with available wheezing history and acceptable spirometry were selected from the fourth Korean National Health and Nutrition Examination Survey (KNHANES IV) in 2007-2009...
June 2017: Journal of Thoracic Disease
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