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https://www.readbyqxmd.com/read/28817100/modulatory-effects-of-exogenously-applied-polyamines-on-postharvest-physiology-antioxidant-system-and-shelf-life-of-fruits-a-review
#1
REVIEW
Sunil Sharma, Sunil Pareek, Narashans Alok Sagar, Daniel Valero, Maria Serrano
Polyamines (PAs) are natural compounds involved in many growth and developmental processes in plants, and, specifically in fruits, play a vital role regulating its development, ripening and senescence processes. Putrescine (PUT), spermine (SPE), and spermidine (SPD) are prominent PAs applied exogenously to extend shelf life of fruits. They also originate endogenously during developmental phases of horticultural crops and simultaneously affect the quality attributes and shelf life. Their anti-ethylene nature is being exploited to enhance the shelf life when exogenously applied on fruits...
August 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28815856/molecular-dynamics-insights-into-polyamine-dna-binding-modes-implications-for-cross-link-selectivity
#2
Emmanuelle Bignon, Chen-Hui Chan, Christophe Morell, Antonio Monari, Jean-Luc Ravanat, Elise Dumont
Biogenic polyamines, which play a role in DNA condensation and stabilization, are ubiquitous and are found at millimolar concentration in the nucleus of eukaryotic cells. The interaction modes of three polyamines-putrescine (Put), spermine (Spm), and spermidine (Spd)-with a self-complementary 16 base pair (bp) duplex, are investigated by all-atom explicit-solvent molecular dynamics. The length of the amine aliphatic chain leads to a change of the interaction mode from minor groove binding to major groove binding...
August 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28797561/self-reported-psychosis-like-experiences-in-patients-with-mood-disorders
#3
I Baryshnikov, J Suvisaari, K Aaltonen, M Koivisto, T Melartin, P Näätänen, K Suominen, B Karpov, M Heikkinen, J Oksanen, T Paunio, G Joffe, E Isometsä
BACKGROUND: Self-reported psychosis-like experiences (PEs) may be common in patients with mood disorders, but their clinical correlates are not well known. We investigated their prevalence and relationships with self-reported symptoms of depression, mania, anxiety, borderline (BPD) and schizotypal (SPD) personality disorders among psychiatric patients with mood disorders. METHODS: The Community Assessment of Psychic Experiences (CAPE-42), Mood Disorder Questionnaire (MDQ), McLean Screening Instrument (MSI), The Beck Depressive Inventory (BDI), Overall Anxiety Severity and Impairment Scale (OASIS) and Schizotypal Personality Questionnaire-Brief form (SPQ-B) were filled in by patients with mood disorders (n=282) from specialized care...
February 3, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28794915/occurrence-of-synpolydactyly-and-omphalocele-in-a-fetus-with-a-hoxd13-mutation
#4
Periyasamy Radhakrishnan, Shalini S Nayak, Muralidhar V Pai, Anju Shukla, Katta M Girisha
Synpolydactyly (SPD) is an autosomal dominant congenital limb disorder due to mutations in HOXD13 . It is a phenotypically heterogeneous condition characterized by syndactyly of the third finger (F3), fourth finger (F4) and/or fourth toe (T4), and fifth toe (T5) with variably associated polydactyly. We report on a mother and fetus with SPD. The mother has a novel mutation (c.708_708delC) in the HOXD13 gene that was also seen in the fetus. However, the fetus had congenital omphalocele in addition to SPD that is an association not reported to date...
September 2017: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/28773176/color-shift-failure-prediction-for-phosphor-converted-white-leds-by-modeling-features-of-spectral-power-distribution-with-a-nonlinear-filter-approach
#5
Jiajie Fan, Moumouni Guero Mohamed, Cheng Qian, Xuejun Fan, Guoqi Zhang, Michael Pecht
With the expanding application of light-emitting diodes (LEDs), the color quality of white LEDs has attracted much attention in several color-sensitive application fields, such as museum lighting, healthcare lighting and displays. Reliability concerns for white LEDs are changing from the luminous efficiency to color quality. However, most of the current available research on the reliability of LEDs is still focused on luminous flux depreciation rather than color shift failure. The spectral power distribution (SPD), defined as the radiant power distribution emitted by a light source at a range of visible wavelength, contains the most fundamental luminescence mechanisms of a light source...
July 18, 2017: Materials
https://www.readbyqxmd.com/read/28758885/dimensional-traits-of-schizotypy-associated-with-glycine-receptor-glra1-polymorphism-an-exploratory-candidate-gene-association-study
#6
Anvi K Vora, Amanda M Fisher, Antonia S New, Erin A Hazlett, Margaret McNamara, Qiaoping Yuan, Zhifeng Zhou, Colin Hodgkinson, David Goldman, Larry J Siever, Panos Roussos, M Mercedes Perez-Rodriguez
Schizotypy captures the underlying genetic vulnerability to schizophrenia. However, the genetic underpinnings of schizotypy remain unexplored. The authors examined the relationship between single nucleotide polymorphisms (SNPs) and schizotypy. A sample of 137 subjects (43 healthy controls, 34 subjects with schizotypal personality disorder [SPD], 32 with borderline personality disorder, and 25 with other personality disorders) completed the Schizotypal Personality Questionnaire (SPQ). Subjects were genotyped using a custom array chip...
July 31, 2017: Journal of Personality Disorders
https://www.readbyqxmd.com/read/28750035/the-modulation-of-eeg-variability-between-internally-and-externally-driven-cognitive-states-varies-with-maturation-and-task-performance
#7
Jessie M H Szostakiwskyj, Stephanie E Willatt, Filomeno Cortese, Andrea B Protzner
Increasing evidence suggests that brain signal variability is an important measure of brain function reflecting information processing capacity and functional integrity. In this study, we examined how maturation from childhood to adulthood affects the magnitude and spatial extent of state-to-state transitions in brain signal variability, and how this relates to cognitive performance. We looked at variability changes between resting-state and task (a symbol-matching task with three levels of difficulty), and within trial (fixation, post-stimulus, and post-response)...
2017: PloS One
https://www.readbyqxmd.com/read/28743305/prognosis-and-longitudinal-changes-of-physical-activity-in-idiopathic-pulmonary-fibrosis
#8
Thomas Bahmer, Anne-Marie Kirsten, Benjamin Waschki, Klaus F Rabe, Helgo Magnussen, Detlef Kirsten, Marco Gramm, Simone Hummler, Eva Brunnemer, Michael Kreuter, Henrik Watz
BACKGROUND: Physical activity (PA) is associated with disease severity in idiopathic pulmonary fibrosis (IPF), but longitudinal studies evaluating its prognostic value and changes over time are lacking. METHODS: We measured PA (steps per day, SPD) in a cohort of 46 IPF-patients (mean age, 67 years; mean FVC, 76.1%pred.) by accelerometry at baseline, recorded survival status during 3 years follow-up and repeated measurements in survivors. We compared the prognostic value of PA to established mortality predictors including lung function (FVC, DLCO) and 6-min walking-distance (6MWD)...
July 25, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28742541/parental-psychological-distress-and-family-food-insecurity-sad-dads-in-hungry-homes
#9
Katie K Tseng, Su Hyun Park, Jenni A Shearston, Lily Lee, Michael Weitzman
OBJECTIVE: To examine whether household food insecurity is associated with serious psychological distress (SPD) in fathers and mothers in a nationally representative US sample. METHODS: We analyzed cross-sectional, matched child-parent data from the 2014 to 2015 National Health Interview Survey (N = 18,456). Parental psychological distress was assessed using the Kessler-6 (K-6) scale. Family food security was measured using the USDA's 10-item Food Security scale, and households were dichotomized as food secure or food insecure...
July 24, 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28716595/the-risk-stratification-and-prognostic-evaluation-of-soluble-programmed-death-1-on-patients-with-sepsis-in-emergency-department
#10
Yongzhen Zhao, Yumei Jia, Chunsheng Li, Yingying Fang, Rui Shao
OBJECTIVE: To evaluate the efficacy of soluble programmed death-1 (sPD-1) for risk stratification and prediction of 28-day mortality in patients with sepsis, we compared serum sPD-1 with procalcitonin (PCT), C-reactive protein (CRP), and the Mortality in Emergency Department Sepsis (MEDS) score. METHODS: A total of 60 healthy volunteers and 595 emergency department (ED) patients were recruited for this prospective cohort study. According to the severity of their condition on ED arrival, the patients were allocated to the systemic inflammatory response syndrome group (130 cases), sepsis group (276 cases), severe sepsis group (121 cases), and septic shock group (68 cases)...
July 4, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28712990/supervoxel-based-statistical-analysis-of-diffusion-tensor-imaging-in-schizotypal-personality-disorder
#11
Teng Zhang, Lin Shi, Qing Zhang, Jianlin Wu, Jian Lv, Defeng Wang
To study white matter changes in schizotypal personality disorder (SPD), we developed a new statistical analysis method based on supervoxels for diffusion tensor imaging. Twenty patients with SPD and eighteen healthy controls were recruited from a pool of 3000 first-year university undergraduates, and underwent MRI using a 3T scanner. Diffusion tensors were first normalized into ICBM-152 space followed by a supervoxel segmentation based on graph clustering to segment white matter tensors into diffusion homogeneous supervoxels...
July 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28699025/polyamines-increase-nitric-oxide-and-reactive-oxygen-species-in-guard-cells-of-arabidopsis-thaliana-during-stomatal-closure
#12
Srinivas Agurla, Gunja Gayatri, Agepati S Raghavendra
A comprehensive study which was undertaken on the effect of three polyamines (PAs) on stomatal closure was examined in relation to nitric oxide (NO) and reactive oxygen species (ROS) levels in guard cells of Arabidopsis thaliana. Three PAs-putrescine (Put), spermidine (Spd), and spermine (Spm)-induced stomatal closure, while increasing the levels of NO as well as ROS in guard cells. The roles of NO and ROS were confirmed by the reversal of closure by cPTIO (NO scavenger) and catalase (ROS scavenger). The presence of L-NAME (NOS-like enzyme inhibitor) reversed PA-induced stomatal closure, suggesting that NOS-like enzyme played a significant role in NO production during stomatal closure...
July 11, 2017: Protoplasma
https://www.readbyqxmd.com/read/28694504/melatonin-alleviates-chilling-stress-in-cucumber-seedlings-by-up-regulation-of-cszat12-and-modulation-of-polyamine-and-abscisic-acid-metabolism
#13
Hailiang Zhao, Kai Zhang, Xiaoting Zhou, Linjie Xi, Yuping Wang, Hongjun Xu, Tonghua Pan, Zhirong Zou
To obtain new insights into the mechanisms of the positive effects of exogenous melatonin applications to cucumber seedlings during chilling, we investigated its role in regulating photosynthesis, the transcription level of csZat12 and the metabolism of polyamines (PAs) and of abscisic acid (ABA). The negative effects of chilling were clearly alleviated in cucumber seedlings by irrigation with 200 μM melatonin solution. This was evidenced by alleviation of the decline in net photosynthesis rate and also in electrolyte leakage in chilled plants...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28688630/treatment-of-laryngopharyngeal-reflux-using-a-sleep-positioning-device-a-prospective-cohort-study
#14
William S Tierney, Scott L Gabbard, Claudio F Milstein, Michael S Benninger, Paul C Bryson
OBJECTIVE: Laryngopharyngeal reflux (LPR) symptoms are often resistant to management and cause significant quality of life impairment to patients with this disease. This study assesses the utility of a sleep-positioning device (SPD) in treating LPR. DESIGN: Single center prospective cohort study. SETTING: Tertiary medical center PARTICIPANTS: 27 adult patients with diagnosed laryngopharyngeal reflux. INTERVENTION: An SPD consisting of a two-component wedge-shaped base pillow and a lateral positioning body pillow (Medcline, Amenity Health Inc...
June 27, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28681293/ferrous-activated-peroxymonosulfate-oxidation-of-antimicrobial-agent-sulfaquinoxaline-and-structurally-related-compounds-in-aqueous-solution-kinetics-products-and-transformation-pathways
#15
Yuefei Ji, Lu Wang, Mengdi Jiang, Yan Yang, Peizeng Yang, Junhe Lu, Corinne Ferronato, Jean-Marc Chovelon
Sulfaquinoxaline (SQX) is a coccidiostatic drug widely used in poultry and swine production and has been frequently detected in various environmental compartments such as surface water, groundwater, soils, and sediments. In the present study, degradation of SQX by ferrous ion-activated peroxymonosulfate oxidation process (Fe(II)/PMS), a promising in situ chemical oxidation (ISCO) technique, was systematically investigated. Experimental results showed that Fe(II)/PMS process appeared to be more efficient for SQX removal relative to Fe(II)/persulfate process (Fe(II)/PS)...
July 5, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28677821/development-and-validation-of-a-high-performance-liquid-chromatography-method-for-the-quantification-of-talazoparib-in-rat-plasma-application-to-plasma-protein-binding-studies
#16
Mahendra Kumar Hidau, Srikanth Kolluru, Srinath Palakurthi
A sensitive and selective RP-HPLC method has been developed and validated for the quantification of a highly potent poly ADP ribose polymerase inhibitor talazoparib (TZP) in rat plasma. Chromatographic separation was performed with isocratic elution method. Absorbance for TZP was measured with a UV detector (SPD-20A UV-vis) at a λmax of 227 nm. Protein precipitation was used to extract the drug from plasma samples using methanol-acetonitrile (65:35) as the precipitating solvent. The method proved to be sensitive and reproducible over a 100-2000 ng/mL linearity range with a lower limit of quantification (LLQC) of 100 ng/mL...
July 5, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28677399/super-cationic-carbon-quantum-dots-synthesized-from-spermidine-as-an-eye-drop-formulation-for-topical-treatment-of-bacterial-keratitis
#17
Hong-Jyuan Jian, Ren-Siang Wu, Tzu-Yu Lin, Yu-Jia Li, Han-Jia Lin, Scott G Harroun, Jui-Yang Lai, Chih-Ching Huang
We have developed a one-step method to synthesize carbon quantum dots (CQDPAs) from biogenic polyamines (PAs) as an antibacterial agent for topical treatment of bacterial keratitis (BK). CQDs synthesized by direct pyrolysis of spermidine (Spd) powder through a simple dry heating treatment exhibit a solubility and yield much higher than those from putrescine and spermine. We demonstrate that CQDs obtained from Spds (CQDSpds) possess effective antibacterial activities against non-multidrug-resistant Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Salmonella enterica serovar Enteritidis bacteria and also against the multidrug-resistant bacteria, methicillin-resistant S...
July 25, 2017: ACS Nano
https://www.readbyqxmd.com/read/28675014/-soluble-programmed-death-1-and-soluble-programmed-death-ligand-1-protein-expression-and-immune-status-in-patients-with-recurrent-aphthous-ulcer
#18
Jiang Nan, Luo Liang, Liu Li, Sun Xiaoqin, Jiang Xing, Cai Yang
OBJECTIVE: This study aims to investigate the possible role and significance of soluble programmed death-1 (sPD-1)  /soluble programmed death ligand 1 (sPD-L1) in the immune pathogeneses of recurrent aphthous ulcer (RAU). METHODS: A total of 30 RAU cases (18 cases of minor RAU, 5 cases of major RAU, and 7 cases of herpetiform ulcers) were enrolled in this study. A total of 18 healthy people served as controls. Lymphocyte subsets (CD3⁺, CD4⁺, CD8⁺, CD19⁺, and CD16⁺+56⁺) were investigated by flow cytometric analysis...
June 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28659980/comparing-facial-emotional-recognition-in-patients-with-borderline-personality-disorder-and-patients-with-schizotypal-personality-disorder-with-a-normal-group
#19
Aida Farsham, Tahereh Abbaslou, Reza Bidaki, Bonnie Bozorg
Objective: No research has been conducted on facial emotional recognition on patients with borderline personality disorder (BPD) and schizotypal personality disorder (SPD). The present study aimed at comparing facial emotion recognition in these patients with the general population. The neurocognitive processing of emotions can show the pathologic style of these 2 disorders. Method: Twenty BPD patients, 16 SPD patients, and 20 healthy individuals were selected by available sampling method. Structural Clinical Interview for Axis II, Millon Personality Inventory, Beck Depression Inventory and Facial Emotional Recognition Test was were conducted for all participants...
April 2017: Iranian Journal of Psychiatry
https://www.readbyqxmd.com/read/28653023/electronic-cigarette-expectancies-in-smokers-with-psychological-distress
#20
Mollie E Miller, Jennifer W Tidey, Damaris J Rohsenow, Stephen T Higgins
OBJECTIVES: Very few studies have evaluated perceptions of electronic nicotine delivery systems (ENDS) among smokers with mental illness. This study assessed expectancies about the effects of smoking combustible cigarettes or using ENDS among current smokers with and without severe psychological distress (SPD). METHODS: We used a crowdsourcing system to survey 268 smokers on their expectancies for the effects of combustible cigarettes and ENDS. Positive expectancies assessed included negative affect reduction, stimulation, positive social effects and weight control, and negative expectancies included negative physical effects, negative psychosocial effects and future health concerns...
January 2017: Tobacco Regulatory Science
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