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https://www.readbyqxmd.com/read/29656427/exercise-training-abrogates-age-dependent-loss-of-hypothalamic-oxytocinergic-circuitry-and-maintains-high-parasympathetic-activity
#1
Carla R Santos, Adriana Ruggeri, Alexandre Ceroni, Lisete C Michelini
Neuroanatomical studies associating neuronal tract tracing and immunohistochemistry identified reciprocal (ascending noradrenergic/descending oxytocinergic, OTergic) connections between brainstem cardiovascular nuclei and the paraventricular hypothalamic nucleus (PVN). Previous functional studies indicated that exercise training (T) augmented the expression/activity of OTergic pathway and improve the autonomic control of the heart. Knowing that ageing is associated with autonomic dysfunction and sinoaortic denervation blocked T-induced beneficial effects, we hypothesized that T was able to reduce age-dependent impairment by improving the afferent signaling to PVN and augmenting OTergic modulation of cardiovascular control...
April 14, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29655715/extraction-kinetic-modelling-of-total-polyphenols-and-total-anthocyanins-from-saffron-floral-bio-residues-comparison-of-extraction-methods
#2
Carla Da Porto, Andrea Natolino
Analysis of the extraction kinetic modelling for natural compounds is essential for industrial application. The second order rate model was applied to estimate the extraction kinetics of conventional solid-liquid extraction (CSLE), ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) of total polyphenols (TPC) from saffron floral bio-residues at different solid-to-liquid ratios (RS/L )(1:10, 1:20, 1:30, 1:50 g ml-1 ), ethanol 59% as solvent and 66 °C temperature. The optimum solid-to-liquid ratios for TPC kinetics were 1:20 for CLSE, 1:30 for UAE and 1:50 for MAE...
August 30, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29655600/response-of-epilithic-diatom-communities-to-environmental-gradients-along-an-ecuadorian-andean-river
#3
Pablo Castillejo, Susana Chamorro, Luis Paz, Carla Heinrich, Ivonne Carrillo, Jose G Salazar, Juan C Navarro, Eduardo A Lobo
Epilithic diatom communities are particularly suitable for the evaluation of freshwater quality. In Ecuador, however, no water quality index includes this biotic parameter. This work is the first attempt in the country to determine the composition of epilithic diatom communities associated with different degrees of eutrophication. This was accomplished by measuring physical, chemical and microbiological variables at five sampling sites along the Pita River, Ecuador, from August to December 2016. The results indicate a clear gradient of eutrophication from sampling sites P1 (good water) in the upper reaches to P5 (bad water) located in the lower reaches...
April 11, 2018: Comptes Rendus Biologies
https://www.readbyqxmd.com/read/29655598/individual-differences-in-the-energizing-effects-of-caffeine-on-effort-based-decision-making-tests-in-rats
#4
Noemí SanMiguel, Marta Pardo, Carla Carratalá-Ros, Laura López-Cruz, John D Salamone, Mercè Correa
Motivated behavior is characterized by activation and high work output. Nucleus accumbens (Nacb) modulates behavioral activation and effort-based decision-making. Caffeine is widely consumed because of its energizing properties. This methylxanthine is a non-selective adenosine A1 /A2A receptor antagonist. Adenosine receptors are highly concentrated in Nacb. Adenosine agonists injected into Nacb, shift preference towards low effort alternatives. The present studies characterized effort-related effects of caffeine in a concurrent progressive ratio (PROG)/free reinforcer choice procedure that requires high levels of work output, and generates great variability among different animals...
April 12, 2018: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29655567/acute-coronary-syndrome-relationship-between-genetic-variants-and-timi-risk
#5
Viviane do Carmo Vasconcelos de Carvalho, Lílian Caroliny Amorim Silva, Romário Martins Araújo, Fábia Carla da Silva Soares, Maria José Ribeiro Bezerra, Sávio Augusto Vieira de Oliveira, Alex José de Melo Silva, Sérgio Tavares Montenegro, Roberto Pereira Werkhauser, Carlos Gustavo Régis da Silva, Adriana Vieira Gomes, Clarice Neuenschwander Lins de Morais, Silvia Maria Lucena Montenegro
Acute Coronary Syndrome (ACS) is a multifactorial disease, including the genetic factor, caused by coronary artery obstruction by atheroma. Some genetic variants have been described as risk factors for this disease. Its early diagnosis and stratification of risk of death by Thrombolysis in Myocardial Infarction (TIMI) are important. Therefore, we evaluated variants in the IL6R (c950-1722C>T), TNFa (c.-488G>A), LEPR (c.2673+1118C>T) and IL1b (c.-598T>C) genes in relation to TIMI risk, cytokine serum levels, and risk factors for ACS...
April 11, 2018: Cytokine
https://www.readbyqxmd.com/read/29653068/variation-in-birth-outcomes-by-mother-s-country-of-birth-among-hispanic-women-in-the-united-states-2013
#6
Carla L DeSisto, Jill A McDonald
OBJECTIVES: Despite knowledge that the Hispanic population is growing in the United States and that birth outcomes may vary by maternal country of birth, data on birth outcomes by maternal country of birth among Hispanic women are scant. We compared the rates of 3 birth outcomes for infants born in the United States-preterm birth, low birth weight, and small for gestational age-between foreign-born Hispanic women and US-born Hispanic women, and then we examined these birth outcomes by mother's country of birth for foreign-born Hispanic women...
January 1, 2018: Public Health Reports
https://www.readbyqxmd.com/read/29652976/-escherichia-vulneris-etiologic-agent-of-septic-arthritis-in-a-child
#7
Carla Pérez, Paulo Melo, Javier Besomi, Lorena Porte, Jan Paul Wilhelm
Escherichia vulneris is a gram-negative bacillus that belongs to the family Enterobacteriaceae, with a questioned pathogenic role. However, it has been confirmed as the cause of wound infections. We report the case of a 12-year-old girl, previously healthy, with a diagnosis of septic arthritis of the right knee, secondary to a spinal lesion. Escherichia vulneris, an unusual etiology of septic arthritis in children, was isolated in the joint fluid. This case is one of the first cases of septic arthritis due to E...
2018: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/29652801/the-crystal-structure-of-the-r280k-mutant-of-human-p53-explains-the-loss-of-dna-binding
#8
Ana Sara Gomes, Filipa Trovão, Benedita Andrade Pinheiro, Filipe Freire, Sara Gomes, Carla Oliveira, Lucília Domingues, Maria João Romão, Lucília Saraiva, Ana Luísa Carvalho
The p53 tumor suppressor is widely found to be mutated in human cancer. This protein is regarded as a molecular hub regulating different cell responses, namely cell death. Compelling data have demonstrated that the impairment of p53 activity correlates with tumor development and maintenance. For these reasons, the reactivation of p53 function is regarded as a promising strategy to halt cancer. In the present work, the recombinant mutant p53R280K DNA binding domain (DBD) was produced for the first time, and its crystal structure was determined in the absence of DNA to a resolution of 2...
April 13, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29652759/performance-and-reproducibility-of-the-continuous-scale-physical-functional-performance-10-test-in-patients-with-chronic-obstructive-pulmonary-disease-a-controlled-cross-sectional-study
#9
Vera Stanzani, Anderson José, Cristiane Helga Yamane de Oliveira, Jacqueline Cristina Boldorini, Fernanda de Cordoba Lanza, Simone Dal Corso, Carla Malaguti
PURPOSE: To compare the performances of patients with chronic obstructive pulmonary disease (COPD) and healthy individuals on the Continuous Scale Physical Functional Performance 10 (PFP10) test and, second, to test the reproducibility of the PFP10 test in these participants. METHODS: In a prospective, cross-sectional study, 28 patients with COPD (67 ± 9 y, FEV1: 44.3 ± 16.9% pred) and 12 healthy volunteers (healthy group) matched by age, body mass index, and sex were included...
April 11, 2018: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/29652415/a-study-of-polymer-chain-diffusion-by-surface-enhanced-raman-effects-of-plasmonic-substrate-topology
#10
Carla D Mana, Gustavo A Torchia, J Pablo Tomba
We report on a new methodology to track chain interdiffusion between polymer slabs based on Raman enhanced by plasmonic substrates. Diffusion is studied in a deuterated-polystyrene/polystyrene (dPS/PS) polymer pair, designed to provide a well-characterized diffusion behavior. The bilayer, 160 nm thick in total, is supported on a plasmonic substrate that provides local amplification of Raman signals in sample regions of close proximity to it. Gold-based substrates with structures of inverted pyramids, spherical nanoparticles and tipped pillars were investigated...
April 13, 2018: Soft Matter
https://www.readbyqxmd.com/read/29652147/generation-and-reactions-of-an-octacyclic-hindered-pyramidalized-alkene
#11
Pelayo Camps, David Lozano, Carla Barbaraci, Merce Font-Bardia, F Javier Luque, Carolina Estarellas
Octacyclo[10.6.1.01,10.03,7.04,9.08,19.011,16.013,17]nonadeca-5,8,14-triene (27) a hindered pyramidalized alkene, has been generated from a diiodide precursor. Contrary to the usual behavior of known pyramidalized alkenes, no Diels-Alder adducts were obtained from the present alkene when it was generated by different standard procedures in the presence of different dienes. However, products derived from the reduction, t-BuLi addition, condensation with the solvent, or dimerization, were isolated from these reactions, depending on the conditions used to generate it...
April 13, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29651834/efficacy-of-anthropometric-measures-for-identifying-cardiovascular-disease-risk-in-adolescents-review-and-meta-analysis
#12
Michael Lichtenauer, Sean D Wheatley, Marrissa Martyn-St James, Michael J Duncan, Fernanda Cobayashi, Gabriela Berg, Carla Musso, Mabel Graffigna, Jimena Soutelo, Pascal Bovet, Anastasios Kollias, George S Stergiou, Evangelos Grammatikos, Claire Griffiths, Lee Ingle, Christian Jung
BACKGROUND: To compare the ability of body mass index (BMI), waist circumference (WC) and waist to height ratio (WHtR) to estimate cardiovascular disease (CVD) risk levels in adolescents. METHODS: A systematic review and meta-analysis was performed after a database search for relevant literature (Cochrane, Centre for Review and Dissemination, PubMed, British Nursing Index, CINAHL, BIOSIS citation index, ChildData, metaRegister). RESULTS: 117 records representing 96 studies with 994,595 participants were included in the systematic review, 14 of which (13 studies, n=14,610) were eligible for the meta-analysis...
April 12, 2018: Minerva Pediatrica
https://www.readbyqxmd.com/read/29651358/pilot-study-of-intra-aortic-balloon-occlusion-to-limit-morbidity-in-patients-with-adherent-placentation-undergoing-cesarean-hysterectomy
#13
Elizabeth Blumenthal, Rashmi Rao, Aisling Murphy, Jeffrey Gornbein, Richard Hong, John M Moriarty, Daniel A Kahn, Carla Janzen
Objective  We study whether using an intra-aortic balloon (IAB) during cesarean hysterectomy decreases delivery morbidity in patients with suspected morbidly adherent placentation. Study Design  This is a retrospective cohort study of deliveries complicated by suspected abnormal placentation between 2009 and 2016 comparing maternal and neonatal outcomes with an IAB placed prior to cesarean hysterectomy versus no IAB. The primary outcome included quantified blood loss (QBL). Results  Thirty-five cases were reviewed, 16 with IAB and 19 without IAB...
April 2018: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/29651230/sex-and-age-differences-in-risk-factors-of-marijuana-involvement-during-adolescence
#14
Lian-Yu Chen, Silvia S Martins, Eric C Strain, Ramin Mojtabai, Carla L Storr
Objectives: We aimed to examine whether there are sex and age differences in psychosocial risk factors of marijuana use during adolescence. Methods: Data were drawn from 57,767 adolescents (8th and 10th graders) from the 2012-2013 Monitoring the Future study. We examined the association between socio-demographic and behavioral correlates with different frequencies of past-year marijuana use (non-use, occasional use: <10 time, frequent use: 10-39 times, and regular use: 40+ times)...
March 2018: Addictive Disorders & Their Treatment
https://www.readbyqxmd.com/read/29649785/albumin-biofunctionalization-to-minimize-the-staphylococcus-aureus-adhesion-on-solid-substrates
#15
María Laura Martín, Valeria Pfaffen, Laura E Valenti, Carla E Giacomelli
Staphylococcus aureus has become the most common opportunistic microorganism related to nosocomial infections due to the bacteria capacity to form biofilms on biomedical devices and implants. Since bacterial adhesion is the first step in this pathogenesis, it is evident that inhibiting such a process will reduce the opportunity for bacterial colonization on the devices. This work is aimed at optimizing a surface biofunctionalization strategy to inhibit the adhesion of S. aureus on solid substrates. The first part of the work deals with the albumin adsorption-desorption process, studied by a factorial design of experiments to explore a wide range of experimental factors (protein concentration, pH, flow rate and adsorption time) and responses (initial adsorption rate, adsorbed amount, desorbed extent) for hydrophilic and hydrophobic substrates, with a reduced number of experiments...
April 3, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29649615/fever-related-arrhythmic-events-in-the-multicenter-survey-on-arrhythmic-events-in-brugada-syndrome-sabrus
#16
Yoav Michowitz, Anat Milman, Georgia Sarquella-Brugada, Antoine Andorin, Jean Champagne, Pieter G Postema, Ruben Casado-Arroyo, Eran Leshem, Jimmy Jm Juang, Carla Giustetto, Jacob Tfelt-Hansen, Yanushi D Wijeyeratne, Christian Veltmann, Domenico Corrado, Sung-Hwan Kim, Pietro Delise, Shingo Maeda, Jean-Baptiste Gourraud, Frederic Sacher, Philippe Mabo, Yoshihide Takahashi, Tsukasa Kamakura, Takeshi Aiba, Giulio Conte, Aviram Hochstadt, Yuka Mizusawa, Michael Rahkovich, Elena Arbelo, Zhengrong Huang, Isabelle Denjoy, Carlo Napolitano, Ramon Brugada, Leonardo Calo, Silvia G Priori, Masahiko Takagi, Elijah R Behr, Fiorenzo Gaita, Gan-Xin Yan, Josep Brugada, Antoine Leenhardt, Arthur A M Wilde, Pedro Brugada, Kengo F Kusano, Kenzo Hirao, Gi-Byoung Nam, Vincent Probst, Bernard Belhassen
BACKGROUND: The literature on fever related arrhythmic events (AE) in Brugada syndrome (BrS) is currently limited to few case reports and small series. OBJECTIVE: The current study aims to describe the characteristics of fever-related AE in a large cohort of BrS patients. METHODS: SABRUS is a multicenter study on 678 BrS patients with first AE documented at time of aborted cardiac arrest (ACA) (n=426) or after prophylactic ICD implantation (n=252)...
April 9, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29649579/prognostic-value-of-nutrition-status-in-the-response-of-cardiac-resynchronization-therapy
#17
Belén Alvarez-Alvarez, Javier García-Seara, Moisés Rodríguez-Mañero, Diego Iglesias-Alvarez, Jose L Martínez-Sande, Rosa M Agra-Bermejo, Xesús A Fernández López, Laila González-Melchor, Francisco Gude Sampedro, Carla Díaz-Louzao, José R González-Juanatey
BACKGROUND: Cardiac resynchronization therapy (CRT) is indicated in symptomatic heart failure (HF) patients after achieving optimal medical therapy. However, there are still a large percentage of patients who do not respond to CRT. Malnutrition is a frequent comorbidity in patients with HF, and it is associated with a poorer prognosis. Here, we evaluate the nutritional status of patients assessed by Controlling Nutritional Status (CONUT) score and its association with structural remodeling and cardiovascular events...
April 9, 2018: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29648813/small-molecule-neuropilin-1-antagonists-combine-anti-angiogenic-and-anti-tumour-activity-with-immune-modulation-through-reduction-of-transforming-growth-factor-beta-tgf%C3%AE-production-in-regulatory-t-cells
#18
Jonathan Powell, Filipa Mota, David Steadman, Christelle Soudy, Jeremy T Miyauchi, Stuart Crosby, Ashley Jarvis, Tifelle Reisinge, Natalie Winfield, Graham Evans, Aled Finniear, Tamas Yelland, Yi-Tai Chou, A W Edith Chan, Andrew O'Leary, Lili Cheng, Dan Liu, Ntina Fotinou, Carla Milagre, John F Martin, Haiyan Jia, Paul Frankel, Snezana Djordjevic, Stella E Tsirka, Ian C Zachary, David L Selwood
We report the design, synthesis and comprehensive studybiological evaluation of a range ofsome potent small-molecule neuropilin-1 (NRP1) antagonists. NRP1 is implicated in the immune response to tumours, particularly in Treg cell fragility, required for PD1 checkpoint blockade. The design of these compounds was based on a previously identified compound EG00229, EG00229 which was used a starting point for optimisation. Through targeting of specific amino-acid residues additional H-bonding interactions were introduced, which led to increases in binding affinity and potency...
April 12, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29648600/comparison-of-two-alternate-pgf2%C3%AE-products-in-two-estrus-synchronization-protocols-in-beef-heifers
#19
Nicola Oosthuizen, Alicia C Lansford, Luara B Canal, Pedro L P Fontes, Carla D Sanford, Carl R Dahlen, Nicolas DiLorenzo, Rick N Funston, G Cliff Lamb
Two experiments were conducted to evaluate the effects of a high concentrate, s.c. PGF2α compared with a conventionally concentrated, i.m. PGF2α in estrus synchronization protocols for heifers. In Exp. 1, 869 Angus-based beef heifers were enrolled at 8 locations. All heifers were exposed to the 7-d CO-Synch + controlled internal drug release (CIDR) estrus synchronization protocol. On day 7 of the protocol heifers received 100 µg of GnRH i.m., and a CIDR insert for 7 d. On day 0, at CIDR removal, estrous detection patches were applied to heifers and, within location, heifers randomly received 1 of 2 PGF2α treatments: 5 mL of Lutalyse i...
April 10, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29648535/evidence-for-loss-and-reacquisition-of-alcoholic-fermentation-in-a-fructophilic-yeast-lineage
#20
Carla Gonçalves, Jennifer H Wisecaver, Jacek Kominek, Madalena Salema Oom, Maria José Leandro, Xing-Xing Shen, Dana A Opulente, Xiaofan Zhou, David Peris, Cletus P Kurtzman, Chris Todd Hittinger, Antonis Rokas, Paula Gonçalves
Fructophily is a rare trait that consists of the preference for fructose over other carbon sources. Here, we show that in a yeast lineage (the Wickerhamiella / Starmerella , W/S clade) comprised of fructophilic species thriving in the high-sugar floral niche, the acquisition of fructophily is concurrent with a wider remodeling of central carbon metabolism. Coupling comparative genomics with biochemical and genetic approaches, we gathered ample evidence for the loss of alcoholic fermentation in an ancestor of the W/S clade and subsequent reinstatement through either horizontal acquisition of homologous bacterial genes or modification of a pre-existing yeast gene...
April 12, 2018: ELife
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