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https://www.readbyqxmd.com/read/28212567/ribosomal-dna-status-inferred-from-dna-cloud-assays-and-mass-spectrometry-identification-of-agarose-squeezed-proteins-interacting-with-chromatin-aspic-ms
#1
Kamil Krol, Justyna Jendrysek, Janusz Debski, Marek Skoneczny, Anna Kurlandzka, Joanna Kaminska, Michal Dadlez, Adrianna Skoneczna
Ribosomal RNA-encoding genes (rDNA) are the most abundant genes in eukaryotic genomes. To meet the high demand for rRNA, rDNA genes are present in multiple tandem repeats clustered on a single or several chromosomes and are vastly transcribed. To facilitate intensive transcription and prevent rDNA destabilization, the rDNA-encoding portion of the chromosome is confined in the nucleolus. However, the rDNA region is susceptible to recombination and DNA damage, accumulating mutations, rearrangements and atypical DNA structures...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212512/are-antifouling-paint-particles-a-continuous-source-of-toxic-chemicals-to-the-marine-environment
#2
Sanye Soroldoni, Fiamma Abreu, Ítalo Braga Castro, Fabio Andrei Duarte, Grasiela Lopes Leães Pinho
Antifouling paint particles (APPs) are generated during periodical maintenance of boat hulls. Chemical composition and toxicity (either chronic or acute) of APPs found in the sediment was evaluated using the epibenthic copepod Nitokra sp. The APPs analyzed showed the presence of high levels of metals such as Cu (234,247±268μgg(-1)), Zn (112,404±845μgg(-1)) and the booster biocide DCOIT (0.13μgg(-1)). Even at low concentrations (as from 5mgg(-1) of APPs by mass of sediment) a significantly decrease in the fecundity was observed in laboratory tests...
February 3, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28212499/validation-of-the-french-version-of-the-dsm-5-yale-food-addiction-scale-in-a-nonclinical-sample
#3
Paul Brunault, Robert Courtois, Ashley N Gearhardt, Philippe Gaillard, Kevin Journiac, Sarah Cathelain, Christian Réveillère, Nicolas Ballon
OBJECTIVE: The Yale Food Addiction Scale (YFAS) is the only questionnaire that assesses food addiction (FA) based on substance dependence criteria in the Diagnostic and Statistical Manual of Mental Disorders (DSM), Fourth Edition, Text Revision. Following recent updating of addiction criteria, a new DSM-5 version (YFAS 2.0) has been developed. Our study tested the psychometric properties of the French YFAS 2.0 in a nonclinical population. METHOD: We assessed 330 nonclinical participants for FA (French YFAS 2...
March 2017: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
https://www.readbyqxmd.com/read/28212445/long-term-effects-of-fetal-undernutrition-on-rat-heart-role-of-hypertension-and-oxidative-stress
#4
Pilar Rodríguez-Rodríguez, Angel L López de Pablo, Concha F García-Prieto, Beatriz Somoza, Begoña Quintana-Villamandos, José J Gómez de Diego, Perla Y Gutierrez-Arzapalo, David Ramiro-Cortijo, M Carmen González, Silvia M Arribas
BACKGROUND AND AIMS: Fetal undernutrition is a risk factor for heart disease in both genders, despite the protection of women against hypertension development. Using a rat model of maternal undernutrition (MUN) we aimed to assess possible sex differences in the development of cardiac alterations and the implication of hypertension and cardiac oxidative stress. METHODS: Male and female offspring from rats fed ad libitum (control) or with 50% of the normal daily intake during the second half of gestation (MUN) were used...
2017: PloS One
https://www.readbyqxmd.com/read/28212433/elevated-gm3-plasma-concentration-in-idiopathic-parkinson-s-disease-a-lipidomic-analysis
#5
Robin B Chan, Adler J Perotte, Bowen Zhou, Christopher Liong, Evan J Shorr, Karen S Marder, Un J Kang, Cheryl H Waters, Oren A Levy, Yimeng Xu, Hong Bin Shim, Itsik Pe'er, Gilbert Di Paolo, Roy N Alcalay
Parkinson's disease (PD) is a common neurodegenerative disease whose pathological hallmark is the accumulation of intracellular α-synuclein aggregates in Lewy bodies. Lipid metabolism dysregulation may play a significant role in PD pathogenesis; however, large plasma lipidomic studies in PD are lacking. In the current study, we analyzed the lipidomic profile of plasma obtained from 150 idiopathic PD patients and 100 controls, taken from the 'Spot' study at Columbia University Medical Center in New York. Our mass spectrometry based analytical panel consisted of 520 lipid species from 39 lipid subclasses including all major classes of glycerophospholipids, sphingolipids, glycerolipids and sterols...
2017: PloS One
https://www.readbyqxmd.com/read/28212395/delayed-apoptosis-allows-islet-%C3%AE-cells-to-implement-an-autophagic-mechanism-to-promote-cell-survival
#6
Heather L Hayes, Brett S Peterson, Jonathan M Haldeman, Christopher B Newgard, Hans E Hohmeier, Samuel B Stephens
Increased β-cell death coupled with the inability to replicate existing β-cells drives the decline in β-cell mass observed in the progression of both major forms of diabetes. Understanding endogenous mechanisms of islet cell survival could have considerable value for the development of novel strategies to limit β-cell loss and thereby promote β-cell recovery. Insulinoma cells have provided useful insight into β-cell death pathways but observations made in cell lines sometimes fail to translate to primary islets...
2017: PloS One
https://www.readbyqxmd.com/read/28212390/lack-of-effects-of-fish-oil-supplementation-for-12-weeks-on-resting-metabolic-rate-and-substrate-oxidation-in-healthy-young-men-a-randomized-controlled-trial
#7
Sebastian Jannas-Vela, Kaitlin Roke, Stephanie Boville, David M Mutch, Lawrence L Spriet
: Fish oil (FO) has been shown to have beneficial effects in the body via incorporation into the membranes of many tissues. It has been proposed that omega-3 fatty acids in FO may increase whole body resting metabolic rate (RMR) and fatty acid (FA) oxidation in human subjects, but the results to date are equivocal. The purpose of this study was to investigate the effects of a 12 week FO supplementation period on RMR and substrate oxidation, in comparison to an olive oil (OO) control group, in young healthy males (n = 26; 22...
2017: PloS One
https://www.readbyqxmd.com/read/28212374/the-effect-of-body-mass-index-at-diagnosis-on-clinical-outcome-in-children-with-newly-diagnosed-acute-lymphoblastic-leukemia
#8
H M Eissa, Y Zhou, J C Panetta, E K Browne, S Jeha, C Cheng, M V Relling, D Campana, C-H Pui, H Inaba
The impact of body mass index (BMI) at diagnosis on treatment outcome in children with acute lymphoblastic leukemia (ALL) is controversial. We studied 373 children with ALL enrolled on the Total XV study, which prospectively used minimal residual disease (MRD) for risk assignment. MRD on day 19 and at the end of remission induction (day 46), cumulative incidence of relapse/refractory disease (CIR), event-free survival (EFS) and overall survival (OS) were evaluated using sets of four, three and two subgroups based on BMI at diagnosis, along with BMI percentile change during remission induction...
February 17, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28212353/effect%C3%A2-of%C3%A2-fibre%C3%A2-supplementation%C3%A2-on%C3%A2-body%C3%A2-weight%C3%A2-and%C3%A2-composition-%C3%A2-frequency%C3%A2-of%C3%A2-eating%C3%A2-and%C3%A2-dietary%C3%A2-choice%C3%A2-in%C3%A2-overweight%C3%A2-individuals
#9
Vicky A Solah, Deborah A Kerr Wendy J Hunt, Stuart K Johnson, Carol J Boushey, Edward J Delp, Xingqiong Meng, Roland J Gahler, Anthony P James, Aqif S Mukhtar, Haelee K Fenton, Simon Wood
Fibre supplementation can potentially reduce energy intake and contribute to weight loss. The mechanism may be reduced frequency of eating, resulting in reduced food consumption. The objective of this research was to determine the effectiveness of fibre supplementation with PolyGlycopleX® (PGX®), on body weight and composition, frequency of eating and dietary intake in 118 overweight adults. In a three-arm, parallel, blind, randomised controlled trial participants were randomised to one of three groups; 4...
February 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28212341/physicochemical-characterization-and-biological-activities-of-the-triterpenic-mixture-%C3%AE-%C3%AE-amyrenone
#10
Rosilene G S Ferreira, Walter F Silva Júnior, Valdir F Veiga Junior, Ádley A N Lima, Emerson S Lima
α-Amyrenone and β-amyrenone are triterpenoid isomers that occur naturally in very low concentrations in several oleoresins from Brazilian Amazon species of Protium (Burseraceae). This mixture can also be synthesized by oxidation of α,β-amyrins, obtained as major compounds from the same oleoresins. Using a very simple, high yield procedure, and using a readily commercially available mixture of α,β-amyrins as substrate, the binary compound α,β-amyrenone was synthesized and submitted to physico-chemical characterization using different techniques such as high-performance liquid chromatography, nuclear magnetic resonance (¹H and (13)C), mass spectrometry, scanning electron microscopy, differential scanning calorimetry, thermogravimetry and derivative thermogravimetry, and Fourier transform infrared spectroscopy (FTIR)...
February 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28212335/fructose-in-breast-milk-is-positively-associated-with-infant-body-composition-at-6-months-of-age
#11
Michael I Goran, Ashley A Martin, Tanya L Alderete, Hideji Fujiwara, David A Fields
Dietary sugars have been shown to promote excess adiposity among children and adults; however, no study has examined fructose in human milk and its effects on body composition during infancy. Twenty-five mother-infant dyads attended clinical visits to the Oklahoma Health Sciences Center at 1 and 6 months of infant age. Infants were exclusively breastfed for 6 months and sugars in breast milk (i.e., fructose, glucose, lactose) were measured by Liquid chromatography-mass spectrometry (LC-MS/MS) and glucose oxidase...
February 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28212325/a-low-g-silicon-inertial-micro-switch-with-enhanced-contact-effect-using-squeeze-film-damping
#12
Yingchun Peng, Zhiyu Wen, Dongling Li, Zhengguo Shang
Contact time is one of the most important properties for inertial micro-switches. However, it is usually less than 20 μs for the switch with rigid electrode, which is difficult for the external circuit to recognize. This issue is traditionally addressed by designing the switch with a keep-close function or flexible electrode. However, the switch with keep-close function requires an additional operation to re-open itself, causing inconvenience for some applications wherein repeated monitoring is needed. The switch with a flexible electrode is usually fabricated by electroplating technology, and it is difficult to realize low-g switches (<50 g) due to inherent fabrication errors...
February 16, 2017: Sensors
https://www.readbyqxmd.com/read/28212294/volatile-profiles-of-emissions-from-different-activities-analyzed-using-canister-samplers-and-gas-chromatography-mass-spectrometry-gc-ms-analysis-a-case-study
#13
Santino Orecchio, Michele Fiore, Salvatore Barreca, Gabriele Vara
The objective of present study was to identify volatile organic compounds (VOCs) emitted from several sources (fuels, traffic, landfills, coffee roasting, a street-food laboratory, building work, indoor use of incense and candles, a dental laboratory, etc.) located in Palermo (Italy) by using canister autosamplers and gas chromatography-mass spectrometry (GC-MS) technique. In this study, 181 VOCs were monitored. In the atmosphere of Palermo city, propane, butane, isopentane, methyl pentane, hexane, benzene, toluene, meta- and para-xylene, 1,2,4 trimethyl benzene, 1,3,5 trimethyl benzene, ethylbenzene, 4 ethyl toluene and heptane were identified and quantified in all sampling sites...
February 15, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28212258/factors-influencing-difficulty-of-laparoscopic-abdominoperineal-resection-for-ultra-low-rectal-cancer
#14
Qiken Li, Dechuan Li, Lai Jiang, Pengnian Qiu, Zhixuan Fu, Lilong Tang, Weiping Chen
PURPOSE: Our current study was conducted to identify patients' anatomic, pathologic, and clinical factors to predict difficulty of performing laparoscopic abdominoperineal resection for ultra-low rectal cancer. MATERIALS AND METHODS: Records of 117 consecutive patients with rectal cancer 2 to 5 cm from the anal verge were retrospectively reviewed. Using univariate and multivariate linear or logistic regression models, standardized operative time and blood loss, as well as postoperative morbidity were utilized as endpoints to screen patients' multiple variables to predict operative difficulty...
February 16, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28212219/drug-infusion-systems-technologies-performance-and-pitfalls
#15
Uoo R Kim, Robert A Peterfreund, Mark A Lovich
This review aims to broadly describe drug infusion technologies and raise subtle but important issues arising from infusion therapy that can potentially lead to patient instability and morbidity. Advantages and disadvantages of gravity-dependent drug infusion are described and compared with electromechanical approaches for precise control of medication infusion, including large-volume peristaltic and syringe pumps. This review discusses how drugs and inert carriers interact within infusion systems and outlines several complexities and potential sources of drug error...
February 16, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28212136/impact-of-different-values-of-prosthesis-patient-mismatch-on-outcome-in-male-patients-with-aortic-valve-replacement
#16
Vito A Mannacio, Luigi Mannacio, Anita Antignano, Giovanni B Pinna, Raffaele Giordano, Michele Mottola, Gabriele Iannelli
AIMS: Mortality and left ventricular mass (LVM) recovery/regression after aortic valve replacement in patients with prosthesis-patient mismatch (PPM) is controversial. This study evaluated the impact of different values of indexed effective orifice area (EOAi) in male patients on mortality and indexed LVM (ILVM) recovery/regression. METHOD: The study recruited 376 male patients with and without PPM after aortic valve replacement with different EOAi cut-off values...
February 15, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28212124/extracranial-meningioma-presenting-as-an-eyebrow-mass
#17
Do Hun Lee, Ho Seup Sim, Jae Ha Hwang, Kwang Seog Kim, Sam Yong Lee
Meningiomas originate in the central nervous system and are the most common intracranial benign tumor. However, although rarely, they can develop extracranially. Primary extracranial meningiomas are frequently misdiagnosed, resulting in inappropriate clinical management. The most common sites of extracranial meningiomas include the skull, scalp, orbit, nose, paranasal sinuses, middle ear, neck, and skin. A 77-year-old woman presented with a mass on her left eyebrow. Computed tomography revealed an enhancing soft tissue mass in the left frontal area...
February 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28212123/repeatability-study-of-angular-and-linear-measurements-on-facial-morphology-analysis-by-means-of-stereophotogrammetry
#18
Lilian Mendes Andrade, Ana Maria Bettoni Rodrigues da Silva, Laís Valencise Magri, Marco Antônio Moreira Rodrigues da Silva
The aim of this study was to analyze the repeatability in a stereophotogrammetry digital system used for the evaluation of facial morphology. Thirty healthy Brazilian, 18 to 45 years old (26.71 ± 6.53), had 11 reference landmarks marked on their faces by the same examiner and were photographed with an interval of 1 week by the VECTRA M3. Nine angular measurements (nasolabial, mentolabial, nasofrontal, maxillofacial, nasal, maxillary, mandibular, facial convexity, full facial convexity) and 2 linear measurements (middle facial height and lower facial height) were taken...
February 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28212108/the-association-between-pre-pregnancy-obesity-and-screening-results-of-depression-for-all-trimesters-of-pregnancy-postpartum-and-1-year-after-birth-a-cohort-study
#19
Hanieh Salehi-Pourmehr, Sakineh Mohammad-Alizadeh, Nayyer Jafarilar-Agdam, Somayyeh Rafiee, Azizeh Farshbaf-Khalili
OBJECTIVE: To determine the relationship between pre-pregnancy obesity and screening results of gestational and post-delivery depression in women referred to the health centers of Tabriz, Iran. METHODS: In this cohort study, 62 and 245 pregnant women with class 2-3 obesity [body mass index (BMI)≥35 kg/m2] and normal-weight (BMI 18.5-24.9 kg/m2) were enrolled, respectively, in the first trimester of pregnancy from December 2012 to January 2016. For matching of groups, nulliparous and multiparous mothers aged 18-35 years were selected with the ratio of 1:4 in obese and normal BMI groups from the same recruitment center and to controlling the confounder factors, inclusion criteria were considered...
February 17, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28212053/transthoracic-echocardiography-pitfalls-and-limitations-as-delineated-at-cardiac-ct-and-mr-imaging
#20
Sachin B Malik, Natalie Chen, Rex A Parker, Joe Y Hsu
Transthoracic echocardiography ( TTE transthoracic echocardiography ) is a critical tool in the field of clinical cardiology. It often serves as one of the first-line imaging modalities in the evaluation of cardiac disease owing to its low cost, portability, widespread availability, lack of ionizing radiation, and ability to evaluate both anatomy and function of the heart. Consequently, a large majority of patients undergoing a cardiac computed tomography (CT) or magnetic resonance (MR) imaging examination will have a TTE transthoracic echocardiography available for review...
February 17, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
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