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https://www.readbyqxmd.com/read/28213537/ketoacylsynthase-domains-of-a-pufa-synthase-in-thraustochytrium-can-effectively-function-as-stand-alone-enzymes-in-escherichia-coli
#1
Xi Xie, Dauenpen Meesapyodsuk, Xiao Qiu
Thraustochytrium sp. 26185 accumulates a high level of docosahexaenoic acid (DHA), a nutritionally important ω-3 very long chain unsaturated fatty acid (VLCPUFA) synthesized primarily by polyunsaturated fatty acid (PUFA) synthase, a Type I polyketide synthase-like mega-enzyme. The PUFA synthase in this species comprises three large subunits each with multiple catalytic domains. It was hypothesized that among these domains, ketoacylsynthase (KS) domains might be critical for catalyzing the condensation of specific unsaturated acyl-ACPs with malonyl-ACP, whereby retaining double bonds in an extended acyl chain...
February 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28213313/structural-investigation-of-the-cocrystal-formed-between-5-fluorocytosine-and-fumaric-acid-based-on-vibrational-spectroscopic-technique
#2
Yong Du, Qiang Cai, Jiadan Xue, Qi Zhang, Dan Qin
The vibrational spectra of 5-fluorocytosine, fumaric acid and their cocrystal were measured using terahertz time-domain spectroscopy (THz-TDS) and Raman spectroscopy at room temperature. Experimental THz results show that the cocrystal has distinct fingerprint spectra in terahertz region. The absorption peaks observed in the terahertz spectra of the cocrystal were at 0.61 and 0.91THz. These are quite different from corresponding raw starting materials. Raman spectra also show similar results about differences between the cocrystal and corresponding raw starting materials...
February 7, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28205099/evaluation-of-potentially-drug-related-patient-reported-common-symptoms-assessed-during-clinical-medication-reviews-a-cross-sectional-observational-study
#3
Tim W A Schoenmakers, Martina Teichert, Michel Wensing, Peter A G M de Smet
INTRODUCTION: Healthcare professionals tend to consider common non-alarming drug-related symptoms to be of little clinical relevance. However, such symptoms can have a substantial impact on the individual patient. Insight into patient-reported symptoms could aid pharmacists to identify improvements in medication treatment, for instance in the patient interview at the start of a clinical medication review (CMR). OBJECTIVE: The objectives of this study were to describe the numbers and types of patient-reported symptoms assessed during a CMR and to elucidate their potential association with the drugs in use...
February 15, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28188522/optimized-enrichment-of-phosphoproteomes-by-fe-imac-column-chromatography
#4
Benjamin Ruprecht, Heiner Koch, Petra Domasinska, Martin Frejno, Bernhard Kuster, Simone Lemeer
Phosphorylation is among the most important post-translational modifications of proteins and has numerous regulatory functions across all domains of life. However, phosphorylation is often substoichiometric, requiring selective and sensitive methods to enrich phosphorylated peptides from complex cellular digests. Various methods have been devised for this purpose and we have recently described a Fe-IMAC HPLC column chromatography setup which is capable of comprehensive, reproducible, and selective enrichment of phosphopeptides out of complex peptide mixtures...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28186884/csi-ept-in-presence-of-rf-shield-for-mr-coils
#5
Alessandro Arduino, Luca Zilberti, Mario Chiampi, Oriano Bottauscio
CSI-EPT is a recently developed technique for the electric properties tomography, that recovers the electric properties distribution starting from measurements performed by magnetic resonance imaging scanners. This method is an optimal control approach based on the contrast source inversion technique, which distinguishes itself from other electric properties tomography techniques for its capability to recover also the local specific absorption rate distribution, essential for online dosimetry. Up to now, CSI-EPT has only been described in terms of integral equations, limiting its applicability to homogeneous unbounded background...
February 8, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28186437/application-of-monoclonal-antibodies-against-mouse-dermokine
#6
Kiyoshi Higashi, Cai-Xia Wang, Chikako Yokoyama, Keita Yamada, Koichi Saito, Taro Tachibana
Dermokine is one of the most highly expressed proteins in differentiating keratinocytes. Mouse dermokine has been reported to be encoded by 22 exons, and its expression leads to three transcripts, β, γ, and α, which are transcribed from two different transcriptional start sites. The α isoform represents the carboxyl-terminal domain of the β isoform, whereas the γ isoform lacks this domain. To reveal the distributions and expression levels of each isoform in mice, we generated rat monoclonal antibodies against dermokine-β/γ and dermokine-β/α...
February 10, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/28185576/var2go-a-web-based-tool-for-gene-variants-selection
#7
Ilaria Granata, Mara Sangiovanni, Francesco Maiorano, Marco Miele, Mario Rosario Guarracino
BACKGROUND: One of the most challenging issue in the variant calling process is handling the resulting data, and filtering the genes retaining only the ones strictly related to the topic of interest. Several tools permit to gather annotations at different levels of complexity for the detected genes and to group them according to the pathways and/or processes they belong to. However, it might be a time consuming and frustrating task. This is partly due to the size of the file, that might contain many thousands of genes, and to the search of associated variants that requires a gene-by-gene investigation and annotation approach...
November 8, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/28182499/perceived-control-across-the-second-half-of-life-the-role-of-physical-health-and-social-integration
#8
Johanna Drewelies, Jenny Wagner, Clemens Tesch-Römer, Jutta Heckhausen, Denis Gerstorf
Perceived control is a key component of successful aging and may serve as a protective factor against age-related declines in central domains of functioning. However, it is a largely open question whether and how perceived control changes from midadulthood to very old age and how such change is shaped by health and social contexts. To examine these questions, we apply growth models to up to 15-year 4-wave longitudinal data from the German Ageing Survey (DEAS; N = 10,081; aged 40-85 years at baseline; 49% women)...
February 2017: Psychology and Aging
https://www.readbyqxmd.com/read/28179879/cannabinoid-receptors-modulate-neuronal-morphology-and-ankyring-density-at-the-axon-initial-segment
#9
Mónica Tapia, Ana Dominguez, Wei Zhang, Ana Del Puerto, María Ciorraga, María José Benitez, Carmen Guaza, Juan José Garrido
Neuronal polarization underlies the ability of neurons to integrate and transmit information. This process begins early in development with axon outgrowth, followed by dendritic growth and subsequent maturation. In between these two steps, the axon initial segment (AIS), a subcellular domain crucial for generating action potentials (APs) and maintaining the morphological and functional polarization, starts to develop. However, the cellular/molecular mechanisms and receptors involved in AIS initial development and maturation are mostly unknown...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28178214/enabling-secure-xmpp-communications-in-federated-iot-clouds-through-xep-0027-and-saml-sasl-sso
#10
Antonio Celesti, Maria Fazio, Massimo Villari
Nowadays, in the panorama of Internet of Things (IoT), finding a right compromise between interactivity and security is not trivial at all. Currently, most of pervasive communication technologies are designed to work locally. As a consequence, the development of large-scale Internet services and applications is not so easy for IoT Cloud providers. The main issue is that both IoT architectures and services have started as simple but they are becoming more and more complex. Consequently, the web service technology is often inappropriate...
February 7, 2017: Sensors
https://www.readbyqxmd.com/read/28177903/the-extracellular-matrix-protein-emilin1-silences-the-ras-erk-pathway-via-%C3%AE-4%C3%AE-1-integrin-and-decreases-tumor-cell-growth
#11
Teresa Maria Elisa Modica, Orlando Maiorani, Giulio Sartori, Eliana Pivetta, Roberto Doliana, Alessandra Capuano, Alfonso Colombatti, Paola Spessotto
The extracellular matrix plays a fundamental role in physiological and pathological proliferation. It exerts its function through a signal cascade starting from the integrins that take direct contact with matrix constituents most of which behave as pro-proliferative clues. On the contrary, EMILIN1, a glycoprotein interacting with the α4β1 integrin through its gC1q domain, plays a paradigmatic anti-proliferative role. Here, we demonstrate that the EMILIN1-α4 interaction de-activates the MAPK pathway through HRas...
February 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28176443/quantitative-phosphoproteomic-analysis-reveals-system-wide-signaling-pathways-regulated-by-site-specific-phosphorylation-on-keratin-8-in-skin-squamous-cell-carcinoma-derived-cell-line
#12
Richa Tiwari, Indrajit Sahu, Bihari Lal Soni, Gajanan J Sathe, Keshava K Datta, Pankaj Thapa, Shruti Sinha, Chella Krishna Vadivel, Bharti Dhaka, Harsha Gowda, Milind M Vaidya
Keratin 8/18, a simple epithelia specific keratin pair, is often aberrantly expressed in squamous cell carcinomas (SCC) where its expression is correlated with increased invasion and poor prognosis. Majority of Keratin 8 (K8) functions are governed by its phosphorylation at Serine(73) (head-domain) and Serine(431) (tail-domain) residues. Although, deregulation of K8 phosphorylation is associated with progression of different carcinomas, its role in skin-SCC and the underlying mechanism is obscure. In this direction, we performed TMT-based quantitative phosphoproteomics by expressing K8 wild type, phosphodead and phosphomimetic mutants in K8-deficient A431 cells...
February 7, 2017: Proteomics
https://www.readbyqxmd.com/read/28165040/lead-free-piezoelectrics-v-3-to-v-5-ion-conversion-promoting-the-performances-of-v-doped-zinc-oxide
#13
M Laurenti, M Castellino, D Perrone, A Asvarov, G Canavese, A Chiolerio
Vanadium doped ZnO (VZO) thin films were grown by RF magnetron sputtering, starting from a ZnO:V ceramic target. The crystal structure, chemical composition, electric and piezoelectric properties of the films were investigated either on the as-grown thin films or after a post-deposition rapid thermal annealing (RTA) treatment performed at 600 °C for different lengths of time (1 and 5 min) in an oxygen atmosphere. Substitutional doping of Zn(2+) with V(3+) and V(5+) ions strongly deteriorated the hexagonal wurtzite ZnO structure of the as-grown thin films due to lattice distortion...
February 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28159792/molecular-characterization-and-phylogenetic-analysis-of-two-novel-fungal-phenolic-udp-glycosyltransferases-from-absidia-coerulea-and-rhizopus-japonicus
#14
Kebo Xie, Xiaoxiang Dou, Ridao Chen, Dawei Chen, Cheng Fang, Zhiyan Xiao, Jungui Dai
: In the present study, two novel phenolic UDP-glycosyltransferases (P-UGTs), UGT58A1 and UGT59A1, which can transfer sugar moieties from active donors to phenolic acceptors to generate corresponding glycosides, were identified from the fungi kingdom. UGT58A1 (from Absidia coerulea) and UGT59A1 (from Rhizopus japonicas) share a low degree of homology with known UGTs from animals, plants, bacteria, and virus. These two P-UGTs are membrane-bound proteins with an N-terminal signal peptide and a transmembrane domain at the C-terminus...
February 3, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28159788/revisiting-the-regulation-of-the-primary-scaffoldin-gene-in-clostridium-thermocellum
#15
Lizett Ortiz de Ora, Iván Muñoz-Gutiérrez, Edward A Bayer, Yuval Shoham, Raphael Lamed, Ilya Borovok
: Cellulosomes are considered to be one of the most efficient systems for degradation of plant cell-wall polysaccharides. The central cellulosome component comprises a large, noncatalytic, protein subunit called scaffoldin. Multiple saccharolytic enzymes are incorporated into the scaffoldins via specific high-affinity cohesin-dockerin interactions. Recently, the regulation of genes encoding certain cellulosomal components by multiple RNA polymerase alternative σ(I) factors has been demonstrated in Clostridium (Ruminiclostridium) thermocellum In the present report, we provide experimental evidence demonstrating that the C...
February 3, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28158982/study-protocol-thyroid-hormone-replacement-for-untreated-older-adults-with-subclinical-hypothyroidism-a-randomised-placebo-controlled-trial-trust
#16
David J Stott, Jacobijn Gussekloo, Patricia M Kearney, Nicolas Rodondi, Rudi G J Westendorp, Simon Mooijaart, Sharon Kean, Terence J Quinn, Naveed Sattar, Kirsty Hendry, Robert Du Puy, Wendy P J Den Elzen, Rosalinde K E Poortvliet, Jan W A Smit, J Wouter Jukema, Olaf M Dekkers, Manuel Blum, Tinh-Hai Collet, Vera McCarthy, Caroline Hurley, Stephen Byrne, John Browne, Torquil Watt, Douglas Bauer, Ian Ford
BACKGROUND: Subclinical hypothyroidism (SCH) is a common condition in elderly people, defined as elevated serum thyroid-stimulating hormone (TSH) with normal circulating free thyroxine (fT4). Evidence is lacking about the effect of thyroid hormone treatment. We describe the protocol of a large randomised controlled trial (RCT) of Levothyroxine treatment for SCH. METHODS: Participants are community-dwelling subjects aged ≥65 years with SCH, diagnosed by elevated TSH levels (≥4...
February 3, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28153217/nocturnal-heart-rate-variation-in-diabetic-and-non-diabetic-patients%C3%A2-with-sleep-apnea-syndrome
#17
Babak Amra, Mohaddeseh Behjati, Thomas Penzel, Ingo Fietze, Christoph Schoebel, Nizal Sarrafzadegan
OBJECTIVES: Heart rate variability (HRV) analysis is used for the evaluation of autonomic function in the cardiovascular system. Decreased HRV is associated with disorders affecting the autonomous system such as diabetes mellitus (DM) and obstructive sleep apnea (OSA). Previous studies have shown an association between OSA and DM. However, the interrelationships of HRV with OSA and DM are not well known. The aim of this study was to assess nocturnal HRV in patients who suffered from OSA with and without DM...
January 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28151573/controlling-nucleation-and-growth-of-metal-halide-perovskite-thin-films-for-high-efficiency-perovskite-solar-cells
#18
Nobuya Sakai, Zhiping Wang, Victor M Burlakov, Jongchul Lim, David McMeekin, Sandeep Pathak, Henry J Snaith
Metal halide perovskite thin films can be crystallized via a broad range of solution-based routes. However, the quality of the final films is strongly dependent upon small changes in solution composition and processing parameters. Here, this study demonstrates that a fractional substitution of PbCl2 with PbI2 in the 3CH3 NH3 I:PbCl2 mixed-halide starting solution has a profound influence upon the ensuing thin-film crystallization. The presence of PbI2 in the precursor induces a uniform distribution of regular quadrilateral-shaped CH3 NH3 PbI3 perovskite crystals in as-cast films, which subsequently grow to form pinhole-free perovskite films with highly crystalline domains...
February 2, 2017: Small
https://www.readbyqxmd.com/read/28149509/music-therapy-is-a-potential-intervention-for-cognition-of-alzheimer-s-disease-a-mini-review
#19
REVIEW
Rong Fang, Shengxuan Ye, Jiangtao Huangfu, David P Calimag
Alzheimer's Disease (AD) is a global health issue given the increasing prevalence rate and the limitations of drug effects. As a consequent, non-pharmacological interventions are of importance. Music therapy (MT) is a non-pharmacological way with a long history of use and a fine usability for dementia patients. In this review, we will summarize different techniques, diverse clinical trials, and the mechanisms of MT as it is helpful to the cognition in AD, providing reference for future research. Many articles have demonstrated that MT can reduce cognitive decline especially in autobiographical and episodic memories, psychomotor speed, executive function domains, and global cognition...
2017: Translational Neurodegeneration
https://www.readbyqxmd.com/read/28139731/non-aug-start-codons-responsible-for-abo-weak-blood-group-alleles-on-initiation-mutant-backgrounds
#20
Emili Cid, Miyako Yamamoto, Fumiichiro Yamamoto
Histo-blood group ABO gene polymorphism is crucial in transfusion medicine. We studied the activity and subcellular distribution of ABO gene-encoded A glycosyltransferases with N-terminal truncation. We hypothesized that truncated enzymes starting at internal methionines drove the synthesis of oligosaccharide A antigen in those already described alleles that lack a proper translation initiation codon. Not only we tested the functionality of the mutant transferases by expressing them and assessing their capacity to drive the appearance of A antigen on the cell surface, but we also analyzed their subcellullar localization, which has not been described before...
January 31, 2017: Scientific Reports
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