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https://www.readbyqxmd.com/read/28941402/copper-ii-ions-interactions-in-the-systems-with-triamines-and-atp-potentiometric-and-spectroscopic-studies
#1
S K Hoffmann, J Goslar, R Bregier-Jarzebowska, A Gasowska, A Zalewska, L Lomozik
The mode of interaction and thermodynamic stability of complexes formed in binary and ternary Cu(II)/ATP/triamines systems were studied using potentiometric and spectroscopic (NMR, EPR, UV-Vis) methods. It was found that in binary metal-free systems ATP/HxPA species are formed (PA: Spd=spermidine or 3,3-tri=1,7-diamino-4-azaheptane) where the phosphate groups from nucleotides are preferred negative centers and protonated amine groups of amines are positive centers of reaction. In the ternary systems Cu/ATP/Hx(PA) as well as Cu/(ATP)(PA) species are formed...
September 9, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28941396/real-time-ultrasound-angiography-using-superharmonic-dual-frequency-2-25mhz-30mhz-cylindrical-array-in-vitro-study
#2
Zhuochen Wang, K Heath Martin, Paul A Dayton, Xiaoning Jiang
Recent studies suggest that dual-frequency intravascular ultrasound (IVUS) transducers allow detection of superharmonic bubble signatures, enabling acoustic angiography for microvascular and molecular imaging. In this paper, a dual-frequency IVUS cylindrical array transducer was developed for real-time superharmonic imaging. A reduced form-factor lateral mode transmitter (2.25MHz) was used to excite microbubbles effectively at 782kPa with single-cycle excitation while still maintaining the small size and low profile (5Fr) (3Fr=1mm) for intravascular imaging applications...
September 15, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28941394/ceftolozane-tazobactam-activity-against-drug-resistant-enterobacteriaceae-and-pseudomonas-aeruginosa-causing-healthcare-associated-infections-in-latin-america-report-from-an-antimicrobial-surveillance-program-2013-2015
#3
Michael A Pfaller, Dee Shortridge, Helio S Sader, Ana Gales, Mariana Castanheira, Robert K Flamm
This study evaluated the in vitro activity of ceftolozane-tazobactam and comparator agents tested against Latin American isolates of Enterobacteriaceae and Pseudomonas aeruginosa from patients with healthcare-associated infection (HAI). Ceftolozane-tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor. A total of 2415 Gram-negative organisms (537 P. aeruginosa and 1878 Enterobacteriaceae) were consecutively collected in 12 medical centers located in four Latin American countries...
September 20, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28941392/liquid-phase-combinatorial-synthesis-of-1-2-5-trisubstituted-benzimidazole-derivatives-as-human-dhodh-inhibitors
#4
Nikum D Sitwala, Vivek K Vyas, Bhavesh C Variya, Snehal S Patel, Chirag C Mehta, Dharmraj N Rana, Manjunath D Ghate
The synthesis of 1,2,5-trisubstituted benzimidazole derivatives was carried out using liquid phase combinatorial approach using soluble polymer assisted support (PEG5000). Synthesised compounds were characterised by FTIR, ESI-MS, (1)H NMR and (13)C NMR. The purity of compounds was confirmed with HPLC analysis. Compounds were also docked into the binding site of human dihydroorotate dehydrogenase (hDHODH). The synthesised compounds were screened for hDHODH enzyme inhibition assay using brequinar as standard compound...
August 30, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28941380/using-virtual-environments-to-investigate-wayfinding-in-8-to-12-year-olds-and-adults
#5
Jamie Lingwood, Mark Blades, Emily K Farran, Yannick Courbois, Danielle Matthews
Wayfinding is the ability to learn and recall a route through an environment. Theories of wayfinding suggest that for children to learn a route successfully, they must have repeated experience of it, but in this experiment we investigated whether children could learn a route after only a single experience of the route. A total of 80 participants from the United Kingdom in four groups of 20 8-year-olds, 10-year-olds, 12-year-olds, and adults were shown a route through a 12-turn maze in a virtual environment...
September 20, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28941364/nonalcoholic-fatty-liver-disease-incidence-and-impact-on-metabolic-burden-and-death-a-20-year-community-study
#6
Alina M Allen, Therneau M Terry, Joseph J Larson, Alexandra Coward, Virend K Somers, Patrick S Kamath
Recent population-based data on nonalcoholic fatty liver disease (NAFLD) epidemiology in general and incidence in particular, are lacking. We examined trends in NAFLD incidence in a US community, and the impact of NAFLD on incident metabolic comorbidities (MC), cardiovascular (CV) events and mortality. A community cohort of all adults diagnosed with NAFLD in Olmsted County, MN between 1997-2014 was constructed using the Rochester Epidemiology Project database. The yearly incidence rate was calculated. The impact of NAFLD on incident MC, CV events and mortality was studied using a multi-state model, with a 4:1 age and sex-matched general population as reference...
September 23, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28941363/maintenance-of-distal-intestinal-structure-in-the-face-of-prolonged-fasting-a-comparative-examination-of-species-from-five-vertebrate-classes
#7
Marshall D McCue, Celeste A Passement, David K Meyerholz
It was recently shown that fasting alters the composition of microbial communities residing in the distal intestinal tract of animals representing five classes of vertebrates [i.e., fishes (tilapia), amphibians (toads), reptiles (leopard geckos), birds (quail), and mammals (mice)]. In the current study, we tested the hypothesis that the extent of tissue reorganization in the fasted distal intestine was correlated with the observed changes in enteric microbial diversity. Segments of intestine adjacent to those used for the microbiota study were examined histologically to quantify cross-sectional and mucosal surface areas as well as thicknesses of mucosa, submucosa, and tunica muscularis...
September 23, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28941361/hepatitis-c-virus-testing-for-case-identification-in-persons-born-during-1945-1965-results-from-three-randomized-controlled-trials
#8
Anthony K Yartel, David B Rein, Kimberly Ann Brown, Katherine Krauskopf, Omar I Massoud, Cynthia Jordan, Natalie Kil, Alex D Federman, David R Nerenz, Joanne E Brady, Danielle L Kruger, Bryce D Smith
CDC and U.S. Preventive Services Task Force recommend one-time hepatitis C virus (HCV) testing for persons born during 1945-1965 (birth cohort). However, few studies estimate the effect of birth cohort (BC) testing implementation on HCV diagnoses in primary care settings. We aimed to determine the probability of identifying HCV infections in primary care using targeted BC testing compared with usual care at three academic medical centers. From December 2012 to March 2014, each center compared one of three distinct interventions to usual care using an independently-designed randomized controlled trial...
September 23, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28941356/computational-approaches-to-identify-genetic-interactions-for-cancer-therapeutics
#9
Graeme Benstead-Hume, Sarah K Wooller, Frances M G Pearl
The development of improved cancer therapies is frequently cited as an urgent unmet medical need. Here we describe how genetic interactions are being therapeutically exploited to identify novel targeted treatments for cancer. We discuss the current methodologies that use 'omics data to identify genetic interactions, in particular focusing on synthetic sickness lethality (SSL) and synthetic dosage lethality (SDL). We describe the experimental and computational approaches undertaken both in humans and model organisms to identify these interactions...
September 23, 2017: Journal of Integrative Bioinformatics
https://www.readbyqxmd.com/read/28938795/lipid-lowering-nutraceuticals-in-clinical-practice-position-paper-from-an-international-lipid-expert-panel
#10
Arrigo F G Cicero, Alessandro Colletti, Gani Bajraktari, Olivier Descamps, Dragan M Djuric, Marat Ezhov, Zlatko Fras, Niki Katsiki, Michel Langlois, Gustavs Latkovskis, Demosthenes B Panagiotakos, Gyorgy Paragh, Dimitri P Mikhailidis, Olena Mitchenko, Bernhard Paulweber, Daniel Pella, Christos Pitsavos, Željko Reiner, Kausik K Ray, Manfredi Rizzo, Amirhossein Sahebkar, Maria-Corina Serban, Laurence S Sperling, Peter P Toth, Dragos Vinereanu, Michal Vrablík, Nathan D Wong, Maciej Banach
In recent years, there has been growing interest in the possible use of nutraceuticals to improve and optimize dyslipidemia control and therapy. Based on the data from available studies, nutraceuticals might help patients obtain theraputic lipid goals and reduce cardiovascular residual risk. Some nutraceuticals have essential lipid-lowering properties confirmed in studies; some might also have possible positive effects on nonlipid cardiovascular risk factors and have been shown to improve early markers of vascular health such as endothelial function and pulse wave velocity...
September 1, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28938789/impacts-of-dietary-calcium-phytate-and-phytase-on-inositol-hexakisphosphate-degradation-and-inositol-phosphate-release-in-different-segments-of-digestive-tract-of-broilers
#11
W Li, R Angel, S-W Kim, K Brady, S Yu, P W Plumstead
A total of 720 straight-run Heritage 56 M × fast feathering Cobb 500F broiler chickens was fed from 11 to 13 d of age to determine the impacts of dietary calcium (Ca), phytate phosphorus (PP), and phytase concentrations on inositol phosphate (IP3-6) profile in different digestive tract (GI) segments. The experiment was a 2 × 2 × 3 randomized block design with 2 Ca (0.7 and 1.0%) and 2 PP (0.23 and 0.34%) concentrations and 3 doses of Buttiauxella sp. phytase (0, 500, and 1,000 FTU/kg). The experiment was replicated in time (block) with 3 replicates per treatment (Trt) of 10 birds per block...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938788/cd4-t-cells-dominate-the-leukocyte-infiltration-response-initiated-by-intra-dermal-injection-of-phytohemagglutinin-into-growing-feathers-in-chickens
#12
K S Sullivan, G F Erf
Phytohemagglutinin (PHA) is commonly used to evaluate cell-mediated immunocompetence. In chickens, PHA is typically injected intra-dermally (i.d.) into the skin (e.g., wing web, wattle, or footpad), and the tissue swelling response is monitored, whereby the extent of tissue swelling positively relates to the individual's cell-mediated immune system capabilities. Although i.d. injected PHA was shown to stimulate mononuclear cell and basophil infiltration to the site of injection, reports on temporal, qualitative, and quantitative aspects of the local cutaneous PHA response are limited...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938781/differences-in-egg-nutrient-availability-and-embryo-development-in-white-layer-breeder-genotypes
#13
E E Onbasilar, M Kahraman, O Ahlat, Ö F Güngör, A Çalik, S Taban, S Yalçin
Because of consumers' preferences and also due to changes in production systems, the importance of pure breeds has increased again. There are a lot of differences among breeds which have been studied extensively, however, the differences during the incubation period are not yet fully known. Therefore, the present study was conducted to evaluate the composition of the egg parts, absorption of nutrients, and development of embryos from different genotypes. A total of 354 fresh hatching eggs were obtained from one hybrid (Lohman White, LW) and two pure breeds (Denizli and Gerze)...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938764/nutrient-composition-and-retention-in-whole-turkeys-with-and-without-added-solution
#14
J R Williams, J M Roseland, Q V Nguyen, J C Howe, K Y Patterson, P R Pehrsson, L D Thompson
Whole turkeys sold in retail outlets are typically processed with added solutions to improve their taste and tenderness. The purpose of this study was to evaluate the nutrient composition of whole turkeys with and without added solution, and to update the nutrient profile of turkey for the USDA National Nutrient Database for Standard Reference. Eleven pairs of turkeys with added solution were obtained from statistically representative retail outlets using a nationwide sampling plan developed for USDA's National Food and Nutrient Analysis Program; 4 pairs of turkeys without added solution were purchased from local food outlets...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938758/commentary-beyond-the-socioeconomic-in-the-health-gap-gender-and-intersectionality
#15
T K Sundari Ravindran
No abstract text is available yet for this article.
August 1, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28938746/women-s-career-priority-is-associated-with-attitudes-towards-family-planning-and-ethical-acceptance-of-reproductive-technologies
#16
Michael K Simoni, Lin Mu, Stephen C Collins
STUDY QUESTION: Do women who place high importance on career success have different perceptions of pregnancy planning, delayed reproduction, and the ethical acceptability of ART than women with less emphasis on their career? SUMMARY ANSWER: Career-focused women place more importance on pregnancy planning, have greater confidence in delayed childbearing, and are more ethically accepting of donor gamete ART than women who do not place as much importance on career success...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938737/complex-catsper-dependent-and-independent-ca2-i-signalling-in-human-spermatozoa-induced-by-follicular-fluid
#17
Sean G Brown, Sarah Costello, Mark C Kelly, Mythili Ramalingam, Ellen Drew, Stephen J Publicover, Christopher L R Barratt, Sarah Martins Da Silva
STUDY QUESTION: Does progesterone in human follicular fluid (hFF) activate CatSper and do other components of hFF modulate this effect and/or contribute separately to hFF-induced Ca2+ signaling? SUMMARY ANSWER: hFF potently stimulates CatSper and increases [Ca2+]i, primarily due to high concentrations of progesterone, however, other components of hFF also contribute to [Ca2+]i signaling, including modulation of CatSper channel activity and inhibition of [Ca2+]i oscillations...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938731/the-importance-of-genetic-parenthood-for-infertile-men-and-women
#18
S Hendriks, K Peeraer, H Bos, S Repping, E A F Dancet
STUDY QUESTION: Do men and women beginning to attend a fertility clinic prefer genetic over non-genetic parenthood? SUMMARY ANSWER: Nearly, all infertile men and women prefer genetic parenthood. WHAT IS KNOWN ALREADY: Clinicians assume that all infertile couples prefer genetic parenthood over non-genetic parenthood and, therefore, consider treatments with donor gametes an option of last resort. Previous studies of the desire for parenthood identified 30 motivations for genetic parenthood, and 51 motivations for which having a genetically related child is not strictly necessary but might be deemed required...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938722/novel-transcriptome-resources-for-three-scleractinian-coral-species-from-the-indo-pacific
#19
Carly D Kenkel, Line K Bay
Transcriptomic resources for coral species can provide insight into coral evolutionary history and stress-response physiology. Goniopora columna, Galaxea astreata, and Galaxea acrhelia are scleractinian corals of the Indo-Pacific, representing a diversity of morphologies and life-history traits. G. columna and G. astreata are common and cosmopolitan, while G. acrhelia is largely restricted to the coral triangle and Great Barrier Reef. Reference transcriptomes for these species were assembled from replicate colony fragments exposed to elevated (31°C) and ambient (27°C) temperatures...
September 1, 2017: GigaScience
https://www.readbyqxmd.com/read/28938682/mental-health-of-the-old-and-new-generation-migrant-workers-in-china-who-are-at-greater-risk-for-psychological-distress
#20
Bao-Liang Zhong, Sandra S M Chan, Tie-Bang Liu, Dong Jin, Chi-Yi Hu, Helen F K Chiu
Rural-to-urban migrant workers (MWs) are a large vulnerable population in China and, recently, the new-generation MWs (those born in 1980 or later) have become the majority of this population. Examining difference in the epidemiology of poor mental health between the new- and old-generation (those born before 1980) MWs would facilitate mental health promotion efforts. However, very few related studies are available and they produced conflicting findings. This study investigated intergenerational difference in prevalence and correlates of psychological distress (PD) in MWs...
August 29, 2017: Oncotarget
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