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https://www.readbyqxmd.com/read/28343315/expanding-the-digital-protologue-database-dpd-to-archives-of-microbiology-an-offer-to-scientists-and-science
#1
EDITORIAL
Erko Stackebrandt, David Smith
No abstract text is available yet for this article.
March 25, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28340699/a-led-based-fiber-optic-sensor-integrated-with-lab-on-valve-manifold-for-colorimetric-determination-of-free-chlorine-in-water
#2
Yan Xiong, Jun Tan, Shenwen Fang, Chengjie Wang, Qing Wang, Jiayi Wu, Jie Chen, Ming Duan
In this work, a colorimetric methodology was developed for free chlorine determination by constructing a fiber-optic sensor (FOS) which was designed by using a small LED as light source and two silica fibers as light transmission elements. Then the FOS was integrated with the sequential injection lab-on-valve (SI-LOV) manifold to fabricate a FOS-SI-LOV system for free chlorine detection. The colorimetric determination was based on the reaction between N,N-diethyl-p-phenylenediamine (DPD) reagent and free chlorine, which would produce a chromophore showing maximum absorbance at 511 and 551nm and detected by a micro spectrometer detector...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28330507/is-admittance-to-specialised-palliative-care-among-cancer-patients-related-to-sex-age-and-cancer-diagnosis-a-nation-wide-study-from-the-danish-palliative-care-database-dpd
#3
Mathilde Adsersen, Lau Caspar Thygesen, Anders Bonde Jensen, Mette Asbjoern Neergaard, Per Sjøgren, Mogens Groenvold
BACKGROUND: Specialised palliative care (SPC) takes place in specialised services for patients with complex symptoms and problems. Little is known about what determines the admission of patients to SPC and whether there are differences in relation to institution type. The aims of the study were to investigate whether cancer patients' admittance to SPC in Denmark varied in relation to sex, age and diagnosis, and whether the patterns differed by type of institution (hospital-based palliative care team/unit, hospice, or both)...
March 23, 2017: BMC Palliative Care
https://www.readbyqxmd.com/read/28329248/clinical-characteristics-of-wild-type-transthyretin-cardiac-amyloidosis-disproving-myths
#4
Esther González-López, Christian Gagliardi, Fernando Dominguez, Cristina Candida Quarta, F Javier de Haro-Del Moral, Agnese Milandri, Clara Salas, Mario Cinelli, Marta Cobo-Marcos, Massimiliano Lorenzini, Enrique Lara-Pezzi, Serena Foffi, Luis Alonso-Pulpon, Claudio Rapezzi, Pablo Garcia-Pavia
Aims: Wild-type transthyretin amyloidosis (ATTRwt) is mostly considered a disease predominantly of elderly male, characterized by concentric LV hypertrophy, preserved LVEF, and low QRS voltages. We sought to describe the characteristics of a large cohort of ATTRwt patients to better define the disease. Methods and results: Clinical findings of consecutive ATTRwt patients diagnosed at 2 centres were reviewed. ATTRwt was diagnosed histologically or non-invasively (LV hypertrophy ≥12 mm, intense cardiac uptake at 99mTc-DPD scintigraphy and AL exclusion)...
March 1, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28327971/dpd-testing-must-remain-a-recommended-option-but-not-a-recommended-routine-test
#5
Gerard Milano
No abstract text is available yet for this article.
March 17, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28319360/vertical-vs-lateral-macrophase-separation-in-thin-films-of-block-copolymer-mixtures-computer-simulations-and-gisaxs-experiments
#6
Anatoly V Berezkin, Florian Jung, Dorthe Posselt, Detlef M Smilgies, Christine M Papadakis
Mixtures of two diblock copolymers of very different lengths may feature both macro- and microphase separation; however, not much is known about the mechanisms of separation in diblock copolymer thin films. In the present work, we study thin films of mixtures of two compositionally symmetric block copolymers, both in the one-phase and in the two-phase state, combining coarse-grained molecular simulations (dissipative particle dynamics, DPD) with scattering experiments (grazing-incidence small-angle X-ray scattering, GISAXS)...
March 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28302398/synthesis-of-isomeric-analogues-of-s-ribosylhomocysteine-analogues-with-homocysteine-unit-attached-to-c2-of-ribose
#7
Christiane Chbib
LuxS (S-ribosylhomocysteinase; EC 4.4.1.21) is an enzyme that catalyzes the cleavage of the thioether linkage in the catalytic pathway of S-ribosylhomocysteine (SRH) which produces homocysteine and 4,5-dihydroxy-2,3-pentanedione (DPD). DPD is the precursor of the signaling molecules known as autoinducer 2 (AI-2) responsible for the bacterial quorum sensing (QS) identified as cell to cell communication. Inhibitors of LuxS should be able to interfere with its catalytic pathway thus preventing the formation of the autoinducer molecules...
March 6, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28295243/quantitative-contribution-of-rs75017182-to-dihydropyrimidine-dehydrogenase-mrna-splicing-and-enzyme-activity
#8
Qian Nie, Shikshya Shrestha, Erin E Tapper, Colbren S Trogstad-Isaacson, Kelly J Bouchonville, Adam M Lee, Rentian Wu, Calvin R Jerde, Zhiquan Wang, Phillip A Kubica, Steven M Offer, Robert B Diasio
Dihydropyrimidine dehydrogenase (DPD; DPYD gene) variants have emerged as reliable predictors of adverse toxicity to the chemotherapy agent 5-fluorouracil (5-FU). The intronic DPYD variant rs75017182 has been recently suggested to promote alternative splicing of DPYD. However, both the extent of alternative splicing and the true contribution of rs75017182 to DPD function remain unclear. In the present study we quantified alternative splicing and DPD enzyme activity in rs75017182 carriers utilizing healthy volunteer specimens from the Mayo Clinic Biobank...
March 15, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28291041/treatment-of-a-patient-with-depersonalization-disorder-with-low-frequency-repetitive-transcranial-magnetic-stimulation-of-the-right-temporo-parietal-junction-in-a-private-practice-setting
#9
Fady Rachid
Depersonalization disorder (DPD) is a debilitating dissociative condition with no proven treatments. Although the pathophysiology of DPD is poorly understood, there are reports of increased excitability of the prefrontal cortex in patients with this condition. The temporo-parietal junction may also play a major role in the conscious experience of the spatial unity of the normal self and body. Repetitive transcranial magnetic stimulation has been shown in some case studies to effectively treat this condition...
March 2017: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/28291040/treatment-of-depersonalization-disorder-with-repetitive-transcranial-magnetic-stimulation
#10
Bianca C Karris, Marc Capobianco, Xin Wei, Lesley Ross
High frequency repetitive transcranial magnetic stimulation (rTMS) was approved by the US Food and Drug Administration in 2008 to treat major depressive disorder in those who did not respond to at least 1 antidepressant trial. Previous studies have shown that both high frequency rTMS to the left dorsolateral prefrontal cortex (DLPFC) and low frequency rTMS to the right DLPFC have antidepressant efficacy in treatment-resistant depression. Although rTMS has been widely used in the treatment of depression, very few studies of rTMS in patients with depersonalization disorder (DPD) have been published so far...
March 2017: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/28278081/correlative-analysis-of-plasma-sn-38-levels-and-dpd-activity-with-outcomes-of-folfiri-regimen-for-metastatic-colorectal-cancer-with-ugt1a1-28-and-6-wild-type-and-its-implication-for-individualized-chemotherapy
#11
Xun Cai, Chuan Tian, Liwei Wang, Rongyuan Zhuang, Xiaowei Zhang, Yuanbiao Guo, Hongmin Lu, Hui Wang, Xiaoyu Li, Junwei Gao, Qi Li, Chungang Wang
It remains uncertain whether there is an correlation between clinical pharmacokinetic parameters and outcomes for metastatic colorectal cancer especially with UGT1A1 *28 and *6 wild type (*1/*1-*1/*1) for serious events associated with Irinotecan are largely excluded. This study retrospectively analyzed the relationship between Irinotecan metabolite levels and outcomes of UGT1A1 *1/*1-*1/*1 genotype arrangement. Blood samples (n = 244) were collected for analysis of plasma DPD activity (before first chemotherapy) and SN-38 levels (1...
February 17, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28275972/dihydropyrimidine-dehydrogenase-deficiency-metabolic-disease-or-biochemical-phenotype
#12
M Fleger, J Willomitzer, R Meinsma, M Alders, J Meijer, R C M Hennekam, M Huemer, A B P van Kuilenburg
Dihydropyrimidine dehydrogenase (DPD) deficiency is an autosomal recessive disorder of pyrimidine metabolism that impairs the first step of uracil und thymine degradation. The spectrum of clinical presentations in subjects with the full biochemical phenotype of DPD deficiency ranges from asymptomatic individuals to severely affected patients suffering from seizures, microcephaly, muscular hypotonia, developmental delay and eye abnormalities.We report on a boy with intellectual disability, significant impairment of speech development, highly active epileptiform discharges on EEG, microcephaly and impaired gross-motor development...
March 9, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28274549/protease-inhibitor-associated-bone-mineral-density-loss-is-related-to-hypothyroidism-and-related-bone-turnover-acceleration
#13
Ei Kinai, Hiroyuki Gatanaga, Daisuke Mizushima, Takeshi Nishijima, Takahiro Aoki, Ikumi Genka, Katsuji Teruya, Kunihisa Tsukada, Yoshimi Kikuchi, Shinichi Oka
BACKGROUND: Clinical and experiments evidence indicate that protease inhibitors (PI) can cause bone mineral density (BMD) loss. However, the mechanism of such loss remains obscure. METHODS: This single-center, cross-sectional study included 184 HIV-infected patients treated with PI who underwent dual-energy X-ray absorptiometry scan. Serum phosphorus, percentage of tubular reabsorption of phosphate (%TRP), thyroid and parathyroid function (iPTH), vitamin D, osteocalcin (OC), urinary deoxypyridinoline (DPD), and urinary cross-linked N-telopeptide of type I collagen (u-NTx) were measured...
March 5, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28257970/effects-of-two-types-of-medical-contrast-media-on-routine-chemistry-results-by-three-automated-chemistry-analyzers
#14
Yu Jin Park, John Hoon Rim, Jisook Yim, Sang-Guk Lee, Jeong-Ho Kim
OBJECTIVES: The use of iodinated contrast media has grown in popularity in the past two decades, but relatively little attention has been paid to the possible interferential effects of contrast media on laboratory test results. Herein, we investigate medical contrast media interference with routine chemistry results obtained by three automated chemistry analyzers. METHODS: Ten levels of pooled serum were used in the study. Two types of medical contrast media [Iopamiro (iopamidol) and Omnipaque (iohexol)] were evaluated...
February 28, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28256403/the-utility-of-99m-tc-dpd-scintigraphy-in-the-diagnosis-of-cardiac-amyloidosis-an-australian-experience
#15
Peter T Moore, Matthew K Burrage, Emily Mackenzie, W Philip Law, Dariusz Korczyk, Peter Mollee
BACKGROUND: The uptake of bone-seeking radiotracers in the amyloid heart is well recognised. 99(m)Tc-DPD has been shown to be highly sensitive for cardiac transthyretin (ATTR) amyloid in an overseas population, but is not registered for use in Australia. We explored its utility as a diagnostic tool within our population. METHODS: Patients diagnosed with AL and ATTR (wild-type and inherited) cardiac amyloidosis were prospectively recruited from the Princess Alexandra Hospital Amyloidosis Centre...
February 16, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28255193/the-impact-of-the-expression-level-of-intratumoral-dihydropyrimidine-dehydrogenase-on-chemotherapy-sensitivity-and-survival-of-patients-in-gastric-cancer-a-meta-analysis
#16
REVIEW
Cong Zhang, Hongpeng Liu, Bin Ma, Yongxi Song, Peng Gao, Yingying Xu, Dehao Yu, Zhenning Wang
The potential impact that the intratumoral expression level of dihydropyrimidine dehydrogenase (DPD) has on chemotherapy sensitivity and long-term survival for gastric cancer (GC) patients remains controversial; therefore, this study seeks to clarify this issue. Our meta-analysis was performed using Review Manager (RevMan) 5.3 software. In vitro drug sensitivity tests, correlation coefficients between sensitivity to 5-fluorouracil (5-FU), and expression levels of intratumoral DPD were used as effective indexes to analyse...
2017: Disease Markers
https://www.readbyqxmd.com/read/28241582/radio-over-fiber-linearization-with-optimized-genetic-algorithm-cpwl-model
#17
Carlos Mateo, Pedro L Carro, Paloma García-Dúcar, Jesús De Mingo, Íñigo Salinas
This article proposes an optimized version of a canonical piece-wise-linear (CPWL) digital predistorter in order to enhance the linearity of a radio-over-fiber (RoF) LTE mobile fronthaul. In this work, we propose a threshold allocation optimization process carried out by a genetic algorithm (GA) in order to optimize the CPWL model (GA-CPWL). Firstly, experiments show how the CPWL model outperforms the classical memory polynomial DPD in an intensity modulation/direct detection (IM/DD) RoF link. Then, the GA-CPWL predistorter is compared with the CPWL model in several scenarios, in order to verify that the proposed DPD offers better performance in different optical transmission conditions...
February 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28218246/organic-organic-heterointerface-engineering-to-boost-carrier-injection-in-oleds
#18
Mohammadreza Fathollahi, Mohsen Ameri, Ezeddin Mohajerani, Ebrahim Mehrparvar, Mohammadrasoul Babaei
We investigate dynamic formation of nanosheet charge accumulations by heterointerface engineering in double injection layer (DIL) based organic light emitting diodes (OLEDs). Our experimental results show that the device performance is considerably improved for the DIL device as the result of heterointerface injection layer (HIIL) formation, in comparison to reference devices, namely, the current density is doubled and even quadrupled and the turn-on voltage is favorably halved, to 3.7 V, which is promising for simple small-molecule OLEDs...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28214708/evaluating-the-role-of-smokeless-tobacco-use-indices-as-brief-measures-of-dependence
#19
Nasir Mushtaq, Laura A Beebe
INTRODUCTION: There is considerable interest in using brief measures of dependence for evaluation and treatment of tobacco dependence. The Heaviness of Smoking Index (HSI) is a validated measure of dependence among cigarette smokers. However, a similar index has not been studied among ST users. The aim of this study is to develop similar ST use indices and evaluate their utility as concise dependence measures. Time to first chew/dip of the day (TTFD), number of cans of ST used per week (CPW), and number of dips/chews per day (DPD) were used to create three ST use indices; heaviness of ST use index (HSTI), ST dependence index (STDI), and ST quantity frequency index (ST-QFI)...
February 10, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28208451/mori-zwanzig-theory-for-dissipative-forces-in-coarse-grained-dynamics-in-the-markov-limit
#20
Sergei Izvekov
We derive alternative Markov approximations for the projected (stochastic) force and memory function in the coarse-grained (CG) generalized Langevin equation, which describes the time evolution of the center-of-mass coordinates of clusters of particles in the microscopic ensemble. This is done with the aid of the Mori-Zwanzig projection operator method based on the recently introduced projection operator [S. Izvekov, J. Chem. Phys. 138, 134106 (2013)10.1063/1.4795091]. The derivation exploits the "generalized additive fluctuating force" representation to which the projected force reduces in the adopted projection operator formalism...
January 2017: Physical Review. E
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