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Jayakumaran J, Patel S, Gangrade B, Silva C. Association of body mass index with embryonic aneuploidy in patients undergoing in vitro fertilization with preimplantation genetic screening. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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102
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Loureiro J, Fernandes H, Tabarés F, Mazzitelli G, Silva C, Gomes R, Alves E, Mateus R, Pereira T, Figueiredo H, Alves H. Deuterium retention in tin (Sn) and lithium–tin (Li–Sn) samples exposed to ISTTOK plasmas. NUCLEAR MATERIALS AND ENERGY 2017. [DOI: 10.1016/j.nme.2016.12.026] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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103
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Augusto Goncalves M, Tralhao A, Henriques J, Teixeira C, Ferreira J, Oliveira A, Guerreiro S, Mesquita J, Vale N, Castro M, Silva C, Matos D, Azinheira J, Figueira J, Mendes M. P2753Diagnostic yield of high sensitivity cardiac troponin for acute myocardial infarction in the emergency room: when sensitivity does not meet specificity. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Silva C, Torres M, Chenlo F, Moreira R. Rheology of aqueous mixtures of tragacanth and guar gums: Effects of temperature and polymer ratio. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2017.02.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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105
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Akerib DS, Alsum S, Aquino C, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Brás P, Byram D, Cahn SB, Carmona-Benitez MC, Chan C, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJR, Dobi A, Dobson JEY, Druszkiewicz E, Edwards BN, Faham CH, Fallon SR, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MGD, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Jacobsen RG, Ji W, Kamdin K, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy ASJ, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Palladino KJ, Pease EK, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solmaz M, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor WC, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Velan V, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FLH, Xu J, Yazdani K, Young SK, Zhang C. First Searches for Axions and Axionlike Particles with the LUX Experiment. PHYSICAL REVIEW LETTERS 2017; 118:261301. [PMID: 28707937 DOI: 10.1103/physrevlett.118.261301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Indexed: 06/07/2023]
Abstract
The first searches for axions and axionlike particles with the Large Underground Xenon experiment are presented. Under the assumption of an axioelectric interaction in xenon, the coupling constant between axions and electrons g_{Ae} is tested using data collected in 2013 with an exposure totaling 95 live days ×118 kg. A double-sided, profile likelihood ratio statistic test excludes g_{Ae} larger than 3.5×10^{-12} (90% C.L.) for solar axions. Assuming the Dine-Fischler-Srednicki-Zhitnitsky theoretical description, the upper limit in coupling corresponds to an upper limit on axion mass of 0.12 eV/c^{2}, while for the Kim-Shifman-Vainshtein-Zhakharov description masses above 36.6 eV/c^{2} are excluded. For galactic axionlike particles, values of g_{Ae} larger than 4.2×10^{-13} are excluded for particle masses in the range 1-16 keV/c^{2}. These are the most stringent constraints to date for these interactions.
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Akerib DS, Alsum S, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Brás P, Byram D, Cahn SB, Carmona-Benitez MC, Chan C, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJR, Dobi A, Dobson JEY, Druszkiewicz E, Edwards BN, Faham CH, Fallon SR, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gilchriese MGD, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Jacobsen RG, Ji W, Kamdin K, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy ASJ, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Palladino KJ, Pease EK, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solmaz M, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor WC, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Velan V, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FLH, Xu J, Yazdani K, Young SK, Zhang C. Limits on Spin-Dependent WIMP-Nucleon Cross Section Obtained from the Complete LUX Exposure. PHYSICAL REVIEW LETTERS 2017; 118:251302. [PMID: 28696768 DOI: 10.1103/physrevlett.118.251302] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Indexed: 06/07/2023]
Abstract
We present experimental constraints on the spin-dependent WIMP-nucleon elastic cross sections from the total 129.5 kg yr exposure acquired by the Large Underground Xenon experiment (LUX), operating at the Sanford Underground Research Facility in Lead, South Dakota (USA). A profile likelihood ratio analysis allows 90% C.L. upper limits to be set on the WIMP-neutron (WIMP-proton) cross section of σ_{n}=1.6×10^{-41} cm^{2} (σ_{p}=5×10^{-40} cm^{2}) at 35 GeV c^{-2}, almost a sixfold improvement over the previous LUX spin-dependent results. The spin-dependent WIMP-neutron limit is the most sensitive constraint to date.
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Carreira JT, Trevizan JT, Carvalho IR, Kipper B, Rodrigues LH, Silva C, Perri SHV, Drevet JR, Koivisto MB. Does sperm quality and DNA integrity differ in cryopreserved semen samples from young, adult, and aged Nellore bulls? Basic Clin Androl 2017. [PMID: 28649382 PMCID: PMC5479005 DOI: 10.1186/s12610-017-0056-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Background In humans, it is now well documented that rising paternal age is correlated with decreased sperm DNA integrity and embryonic developmental failures. On the other side of the coin, it is also reported that very young fathers such as teenagers carry an increased risk of adverse birth outcomes. These observations suggest that, at least in humans, there is an age window for optimal sperm DNA integrity. In bovine, little is known about sperm DNA quality in young bulls and how it evolves with age. This study aimed to fill in this gap as it may be of importance for the bovine industry to know when exactly a bull is an optimal performer for reproductive programs. Methods Forty Nellore bulls were divided into three age groups: 1.8 to 2 years – young bulls; 3.5 to 7 years – adult bulls; and 8 to 14.3 years – aged bulls. Three ejaculates were collected from each bull, cryopreserved and evaluated for various parameters including: computer-assisted sperm analysis (CASA), plasma membrane and acrosome integrity, mitochondrial potential, sperm nuclear protamination, DNA oxidative damage, and Sperm Chromatin Structure Assay (SCSA). Results We report here that young bulls presented superior values for motility, plasma and acrosomal membrane integrity, and high mitochondrial potential. However, they also presented higher values for sperm morphological abnormalities compared to adult and aged animal groups (p < 0.05). In addition, young bulls exhibited more defective protamination than older animals did. The oldest bulls showed more nuclear oxidative damage than the younger groups of bulls while both the young and aged groups were found more susceptible to DNA denaturation as revealed with the SCSA test (p < 0.05). Conclusion These results indicate that young bulls spermatozoa best survived the freezing procedure, followed by adult and aged bulls. However, young and aged bulls were found to be more susceptible to DNA damage, respectively caused by protamine deficiency and oxidation. Therefore, although young bulls have correct semen parameters according to classical evaluation, our results indicate that they may show some structural nuclear immaturity.
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Gómez-Ambrosi J, Andrada P, Valentí V, Rotellar F, Silva C, Catalán V, Rodríguez A, Ramírez B, Moncada R, Escalada J, Salvador J, Frühbeck G. Dissociation of body mass index, excess weight loss and body fat percentage trajectories after 3 years of gastric bypass: relationship with metabolic outcomes. Int J Obes (Lond) 2017; 41:1379-1387. [DOI: 10.1038/ijo.2017.134] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/15/2017] [Accepted: 05/25/2017] [Indexed: 12/18/2022]
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109
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Alonso JA, Zweben SJ, De Pablos JL, De La Cal E, Hidalgo C, Klinger T, Van Milligen BP, Pedrosa MA, Silva C, Thomsen H. Two-Dimensional Turbulence Analysis Using High-Speed Visible Imaging in TJ-II Edge Plasmas. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst06-a1250] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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110
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Nunes C, Silva C, Correia-Branco A, Martel F. Lack of effect of the procarcinogenic 17β-estradiol on nutrient uptake by the MCF-7 breast cancer cell line. Biomed Pharmacother 2017; 90:287-294. [PMID: 28365520 DOI: 10.1016/j.biopha.2017.03.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 03/22/2017] [Accepted: 03/23/2017] [Indexed: 12/26/2022] Open
Abstract
Breast cancer is one of the most frequent cancers in the population, especially in older women. Estrogen is known to be a key hormone in the development and progression of mammary carcinogenesis. In this study, we investigated if the procarcinogenic effect of 17β-estradiol (E2) in breast cancer MCF-7 cells is dependent on changes in glucose or folic acid cellular uptake. The effect of E2 on uptake of 3H-deoxy-d-glucose, 3H-folic acid, cell proliferation (3-thymidine incorporation assay), culture growth (sulforhodamine B assay), viability (lactate dehydrogenase activity assay), lactate production and migration capacity (injury assay) was evaluated. E2 (48h; 100nM) increased culture growth (16%), proliferation rate (24%), cellular viability (36%) and lactate production (38%). In contrast, E2 did not significantly affect the migration capacity of MCF-7 cells. The pro-proliferative, but not the cytoprotective effect of E2 was found to be ERβ-dependent. The polyphenols rutin and caffeic acid were not able to counteract the effect of E2 upon cell proliferation and viability. Uptake of 3H-deoxy-d-glucose was not affected by E2, either in the absence or presence of GLUT inhibitors (cytochalasin B plus phloridzin). Moreover, E2 did not change GLUT1 mRNA levels. Finally, 3H-folic acid uptake was also not affected by E2, both in the absence and presence of the RFC1 inhibitor, methotrexate. The pro-proliferative and cytoprotective effects of E2 are not dependent neither of stimulation of glucose cellular uptake (both GLUT and non-GLUT-mediated) nor of stimulation of folic acid uptake (both RFC1-and non-RFC1-mediated).
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Melnikov AV, Hidalgo C, Chmyga AA, Dreval NB, Eliseev LG, Khrebtov SM, Komarov AD, Kozachok AS, Krupnik LI, Pastor I, Pedrosa MA, Perfilov SV, McCarthy K, Ochando MA, Van Oost G, Silva C, Goncalves B, Dnestrov YN, Lysenko SE, Ufimtsev MV, Tereshin VI. Plasma Potential Measurements by the Heavy Ion Beam Probe Diagnostic in Fusion Plasmas: Biasing Experiments in the TJ-II Stellarator and T-10 Tokamak. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst04-a568] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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112
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Akerib DS, Alsum S, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Bramante R, Brás P, Byram D, Cahn SB, Carmona-Benitez MC, Chan C, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJR, Dobi A, Dobson JEY, Druszkiewicz E, Edwards BN, Faham CH, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MGD, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Ihm M, Jacobsen RG, Ji W, Kamdin K, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy ASJ, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Palladino KJ, Pease EK, Phelps P, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solmaz M, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor WC, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FLH, Xu J, Yazdani K, Young SK, Zhang C. Results from a Search for Dark Matter in the Complete LUX Exposure. PHYSICAL REVIEW LETTERS 2017; 118:021303. [PMID: 28128598 DOI: 10.1103/physrevlett.118.021303] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Indexed: 06/06/2023]
Abstract
We report constraints on spin-independent weakly interacting massive particle (WIMP)-nucleon scattering using a 3.35×10^{4} kg day exposure of the Large Underground Xenon (LUX) experiment. A dual-phase xenon time projection chamber with 250 kg of active mass is operated at the Sanford Underground Research Facility under Lead, South Dakota (USA). With roughly fourfold improvement in sensitivity for high WIMP masses relative to our previous results, this search yields no evidence of WIMP nuclear recoils. At a WIMP mass of 50 GeV c^{-2}, WIMP-nucleon spin-independent cross sections above 2.2×10^{-46} cm^{2} are excluded at the 90% confidence level. When combined with the previously reported LUX exposure, this exclusion strengthens to 1.1×10^{-46} cm^{2} at 50 GeV c^{-2}.
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Mello B, Zempulski D, Cardozo-Filho L, Silva C. Hydrolysis of Canola Oil Under Subcritical Conditions for Biodiesel Synthesis. ACTA ACUST UNITED AC 2017. [DOI: 10.14233/ajchem.2017.20217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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114
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Allaart J, Silva C, van der Heijden M, Roubos-van den Hil P. Novel feed additives controlling Salmonella typhimurium in pigs. ANIMAL PRODUCTION SCIENCE 2017. [DOI: 10.1071/anv57n12ab037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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115
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Delgado L, Silva C, Oliveira J, Pires I, Simões P. Canine Digital Lesions: Retrospective Study of 124 Cases (2010–2015). J Comp Pathol 2017. [DOI: 10.1016/j.jcpa.2016.11.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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116
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Silva C, Saldanha Matos J, Rosa MJ. Performance indicators and indices of sludge management in urban wastewater treatment plants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 184:307-317. [PMID: 27726898 DOI: 10.1016/j.jenvman.2016.09.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 08/31/2016] [Accepted: 09/18/2016] [Indexed: 06/06/2023]
Abstract
Sludge (or biosolids) management is highly complex and has a significant cost associated with the biosolids disposal, as well as with the energy and flocculant consumption in the sludge processing units. The sludge management performance indicators (PIs) and indices (PXs) are thus core measures of the performance assessment system developed for urban wastewater treatment plants (WWTPs). The key PIs proposed cover the sludge unit production and dry solids concentration (DS), disposal/beneficial use, quality compliance for agricultural use and costs, whereas the complementary PIs assess the plant reliability and the chemical reagents' use. A key PI was also developed for assessing the phosphorus reclamation, namely through the beneficial use of the biosolids and the reclaimed water in agriculture. The results of a field study with 17 Portuguese urban WWTPs in a 5-year period were used to derive the PI reference values which are neither inherent to the PI formulation nor literature-based. Clusters by sludge type (primary, activated, trickling filter and mixed sludge) and by digestion and dewatering processes were analysed and the reference values for sludge production and dry solids were proposed for two clusters: activated sludge or biofilter WWTPs with primary sedimentation, sludge anaerobic digestion and centrifuge dewatering; activated sludge WWTPs without primary sedimentation and anaerobic digestion and with centrifuge dewatering. The key PXs are computed for the DS after each processing unit and the complementary PXs for the energy consumption and the operating conditions DS-determining. The PX reference values are treatment specific and literature based. The PI and PX system was applied to a WWTP and the results demonstrate that it diagnosis the situation and indicates opportunities and measures for improving the WWTP performance in sludge management.
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Matos R, Cordeiro JM, Coelho A, Ferreira S, Silva C, Igawa Y, Cruz F, Charrua A. Bladder pain induced by prolonged peripheral alpha 1A adrenoceptor stimulation involves the enhancement of transient receptor potential vanilloid 1 activity and an increase of urothelial adenosine triphosphate release. Acta Physiol (Oxf) 2016; 218:265-275. [PMID: 27370818 DOI: 10.1111/apha.12744] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/22/2016] [Accepted: 06/28/2016] [Indexed: 12/24/2022]
Abstract
AIM Pathophysiological mechanisms of chronic visceral pain (CVP) are unknown. This study explores the association between the sympathetic system and bladder nociceptors activity by testing the effect of a prolonged adrenergic stimulation on transient receptor potential vanilloid 1 (TRPV1) activity and on urothelial adenosine triphosphate (ATP) release. METHODS Female Wistar rats received saline, phenylephrine (PHE), PHE + silodosin, PHE + naftopidil or PHE + prazosin. TRPV1 knockout and wild-type mice received saline or PHE. Visceral pain behaviour tests were performed before and after treatment. Cystometry was performed, during saline and capsaicin infusion. Fos immunoreactivity was assessed in L6 spinal cord segment. Human urothelial ATP release induced by mechanical and thermal stimulation was evaluated. RESULTS Subcutaneous, but not intrathecal, PHE administration induced pain, which was reversed by silodosin, a selective alpha 1A adrenoceptor antagonist, but not by naftopidil, a relatively selective antagonist for alpha 1D adrenoceptor. Silodosin also reversed PHE-induced bladder hyperactivity and L6 spinal cord Fos expression. Thus, in subsequent experiments, only silodosin was used. Wild-type, but not TRPV1 knockout, mice exhibited phenylephrine-induced pain. Capsaicin induced a greater increase in voiding contractions in PHE-treated rats than in control animals, and silodosin reversed this effect. When treated with PHE, ATP release from human urothelial cells was enhanced either by mechanical stimulation or by lowering the thermal threshold of urothelial TRPV1, which becomes abnormally responsive at body temperature. CONCLUSION This study suggests that the activation of peripheral alpha 1A adrenoceptors induces CVP, probably through its interaction with TRPV1 and ATP release.
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Silva C, Matos JS, Rosa MJ. A comprehensive approach for diagnosing opportunities for improving the performance of a WWTP. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 74:2935-2945. [PMID: 27997403 DOI: 10.2166/wst.2016.432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
High quality services of wastewater treatment require a continuous assessment and improvement of the technical, environmental and economic performance. This paper demonstrates a comprehensive approach for benchmarking wastewater treatment plants (WWTPs), using performance indicators (PIs) and indices (PXs), in a 'plan-do-check-act' cycle routine driven by objectives. The performance objectives herein illustrated were to diagnose the effectiveness and energy performance of an oxidation ditch WWTP. The PI and PX results demonstrated an effective and reliable oxidation ditch (good-excellent performance), and a non-reliable UV disinfection (unsatisfactory-excellent performance) related with influent transmittance and total suspended solids. The energy performance increased with the treated wastewater volume and was unsatisfactory below 50% of plant capacity utilization. The oxidation ditch aeration performed unsatisfactorily and represented 38% of the plant energy consumption. The results allowed diagnosing opportunities for improving the energy and economic performance considering the influent flows, temperature and concentrations, and for levering the WWTP performance to acceptable-good effectiveness, reliability and energy efficiency. Regarding the plant reliability for fecal coliforms, improvement of UV lamp maintenance and optimization of the UV dose applied and microscreen recommissioning were suggested.
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Gomes F, Sobrinho E, Miranda R, Mercurio L, Dias M, Nascimento K, Alves A, Tavares E, Teixeira L, Silva O, Fernandes P, Reis F, Rios T, Silva C, Lopes G. Compliance with oral cancer medications when dispensed in the oncology clinic vs. when provided directly by healthcare payers: a prospective multicenter study by the Oncoclinicas Group. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw390.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Jayakumaran J, Silva C, Gangrade B, Patel S. Anti-Mullerian hormone levels does not predict outcomes of IVF cycles undergoing pre-implantation genetic screening (PGS). Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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121
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Ferreira R, Duarte C, Silva C, Eugénio G, Ndosi M, Gossec L, da Silva J. THU0602 Patient Global Assessment in Rheumatoid Arthritis Conveys A Variable Blend of Disease Activity and Disease Impact: A Cross-Sectional Study with 311 Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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122
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Borges J, Fernandes S, Vieira V, Cardoso A, Madeira H, Mediavilla M, Leitão R, Silva C, Faustino A. AB1011 Vitamin D Status – A Transversal Evaluation in Rheumatic Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.6037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Eugenio G, Ferreira R, Silva C, Duarte C, Silva J. THU0596 Physician's Global Assessment of Disease Activity in Rheumatoid Arthritis, Reflects Solely Objective Measures and Disregards Patient Reported Outcomes: Table 1. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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124
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Fernandes S, Borges J, Silva C, Simões E, Micaelo M, Barcelos F, Madeira H, Vaz Patto J, Cunha Miranda L, Sousa M, Cortes S, Faustino A. THU0536 Remission and Re-Treatment of Patients with Paget's Disease of Bone Treated with Zolendronic Acid – A Single Center 10 Year Experience. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.6083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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125
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Laguna S, Andrada P, Silva C, Rotellar F, Valenti V, Gil MJ, Gómez-Ambrosi J, Frühbeck G, Salvador J. [Body weight- independent variations in HDL-cholesterol following gastric bypass]. An Sist Sanit Navar 2016; 39:23-33. [PMID: 27125617 DOI: 10.4321/s1137-6627/2016000100004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 12/01/2015] [Indexed: 11/11/2022]
Abstract
BACKGROUND Bariatric surgery has multiple beneficial effects on lipid profile in patients with morbid obesity. However, these changes can be attenuated by weight regain. This retrospective study was designed to assess the effects of gastric bypass(GBP) on different lipid fractions over a 6 year follow-up. PATIENTS AND METHODS We studied 177 patients (135 women)with morbid obesity (BMI 44.2+0.4 kg/m2) aged 42.4+0.9 years before and 3, 6, 9, 12, 24, 36, 48, 60 and 72 months after laparoscopic proximal GBP. Anthropometry, body composition measurement (Bod-Pod) and fasting blood samples were taken in all evaluations to measure total cholesterol (TC),LDL-cholesterol (LDL-C), HDL-cholesterol (HDL-C), triglycerides(TG), glucose and insulin. RESULTS GPB was followed by a significant BMI reduction (nadir BMI at 18 m 28.3+0.4 kg/m2 p<0,001) and fat mass decrease(p<0,001). Maximal percentage of excess BMI lost was 84.1%and that of body fat was 87% 18 months after GBP. These numbers decreased to 65.6% and 38.3% (p<0,005 vs nadir) respectively 72 months after the operation, indicating both weight and fat mass regain. TG and LDL-C values decreased 30% with respect to preoperative levels, while HDL-C increased 97%over initial values. This HDL-C increase was progressive even over the weight regain phase. Both TC/HDL-C and TG/HDL-Cratios normalized after GBP and values were sustained over the weight regain period until the end of the study. CONCLUSIONS These results confirm the beneficial effects of GBP on all lipid fractions, which are maintained over 6 years of follow-up. Globally, the rise in HDL-C seems to be independent of weight or fat mass changes, since it increases even over the weight regain phase, so contributing to a reduction in the prevalence of dyslipidaemia and to cardiovascular risk reduction.
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Laguna S, Andrada P, Silva C, Rotellar F, Valenti V, Gil MJ, Gomez-Ambrosi J, Fruhbeck G, Salvador J. Body weight- independent variations in HDL-cholesterol following gastric bypass. An Sist Sanit Navar 2016. [DOI: 10.23938/s1137-6627/2016000100004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Akerib DS, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Bradley A, Bramante R, Cahn SB, Carmona-Benitez MC, Chan C, Chapman JJ, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJR, de Viveiros L, Dobi A, Dobson JEY, Druszkiewicz E, Edwards BN, Faham CH, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MGD, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Ihm M, Jacobsen RG, Ji W, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Malling DC, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy ASJ, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Ott RA, Palladino KJ, Pangilinan M, Pease EK, Phelps P, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor W, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FLH, Yazdani K, Young SK, Zhang C. Results on the Spin-Dependent Scattering of Weakly Interacting Massive Particles on Nucleons from the Run 3 Data of the LUX Experiment. PHYSICAL REVIEW LETTERS 2016; 116:161302. [PMID: 27152786 DOI: 10.1103/physrevlett.116.161302] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Indexed: 06/05/2023]
Abstract
We present experimental constraints on the spin-dependent WIMP (weakly interacting massive particle)-nucleon elastic cross sections from LUX data acquired in 2013. LUX is a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility (Lead, South Dakota), which is designed to observe the recoil signature of galactic WIMPs scattering from xenon nuclei. A profile likelihood ratio analysis of 1.4×10^{4} kg day of fiducial exposure allows 90% C.L. upper limits to be set on the WIMP-neutron (WIMP-proton) cross section of σ_{n}=9.4×10^{-41} cm^{2} (σ_{p}=2.9×10^{-39} cm^{2}) at 33 GeV/c^{2}. The spin-dependent WIMP-neutron limit is the most sensitive constraint to date.
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Akerib DS, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Bradley A, Bramante R, Cahn SB, Carmona-Benitez MC, Chan C, Chapman JJ, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJR, de Viveiros L, Dobi A, Dobson JEY, Druszkiewicz E, Edwards BN, Faham CH, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MGD, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Ihm M, Jacobsen RG, Ji W, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Malling DC, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy ASJ, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Ott RA, Palladino KJ, Pangilinan M, Pease EK, Phelps P, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor W, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FLH, Yazdani K, Young SK, Zhang C. Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX Data. PHYSICAL REVIEW LETTERS 2016; 116:161301. [PMID: 27152785 DOI: 10.1103/physrevlett.116.161301] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Indexed: 06/05/2023]
Abstract
We present constraints on weakly interacting massive particles (WIMP)-nucleus scattering from the 2013 data of the Large Underground Xenon dark matter experiment, including 1.4×10^{4} kg day of search exposure. This new analysis incorporates several advances: single-photon calibration at the scintillation wavelength, improved event-reconstruction algorithms, a revised background model including events originating on the detector walls in an enlarged fiducial volume, and new calibrations from decays of an injected tritium β source and from kinematically constrained nuclear recoils down to 1.1 keV. Sensitivity, especially to low-mass WIMPs, is enhanced compared to our previous results which modeled the signal only above a 3 keV minimum energy. Under standard dark matter halo assumptions and in the mass range above 4 GeV c^{-2}, these new results give the most stringent direct limits on the spin-independent WIMP-nucleon cross section. The 90% C.L. upper limit has a minimum of 0.6 zb at 33 GeV c^{-2} WIMP mass.
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Santos A, Isidro J, Silva C, Boaventura L, Diogo J, Faustino A, Toscano C, Oleastro M. Molecular and epidemiologic study of Clostridium difficile reveals unusual heterogeneity in clinical strains circulating in different regions in Portugal. Clin Microbiol Infect 2016; 22:695-700. [PMID: 27091093 DOI: 10.1016/j.cmi.2016.04.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/21/2016] [Accepted: 04/05/2016] [Indexed: 02/04/2023]
Abstract
Clostridium difficile infection (CDI) represents a great healthcare burden in developed countries. The emergence of the epidemic PCR ribotype (RT) 027 and its acquired fluoroquinolones resistance have accentuated the need for an active surveillance of CDI. Here we report the first countrywide study of CDI in Portugal with the characterization of 498 C. difficile clinical isolates from 20 hospitals in four regions in Portugal regarding RT, virulence factors and antimicrobial susceptibility. We identified 96 RTs with marked variations between and within regions, as only six RTs appeared in all four regions. RT027 was the most frequent RT overall (18.5%) and among healthcare facility-associated isolates (19.6%), while RT014 was the most common among community-associated isolates (12%). The north showed a high RT diversity among isolates and a low moxifloxacin (MXF) resistance rate (11.9%), being the only region in which RT027 was not predominant. In contrast, the isolates from the centre presented the highest RT027 frequency, and 53.4% were resistant to MXF. Overall, MXF resistance (33.2%) was associated (p <0.001) with the presence of binary toxin genes and mutations in tcdC regardless of the RT. Both traits appeared in almost 30% of the strains. RT027 showed a reduced susceptibility to metronidazole (p <0.01), and RT126 had higher minimum inhibitory concentrations to vancomycin (p = 0.03) compared to other RTs. The present study highlights an unusual heterogeneity of RTs in Portugal, with a high frequency of hypervirulent RTs and the emergence of virulence factors in non-027 RTs, emphasizing the need for a surveillance system for CDI in Portugal.
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Adamek J, Müller HW, Silva C, Schrittwieser R, Ionita C, Mehlmann F, Costea S, Horacek J, Kurzan B, Bilkova P, Böhm P, Aftanas M, Vondracek P, Stöckel J, Panek R, Fernandes H, Figueiredo H. Profile measurements of the electron temperature on the ASDEX Upgrade, COMPASS, and ISTTOK tokamak using Thomson scattering, triple, and ball-pen probes. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:043510. [PMID: 27131677 DOI: 10.1063/1.4945797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The ball-pen probe (BPP) technique is used successfully to make profile measurements of the electron temperature on the ASDEX Upgrade (Axially Symmetric Divertor Experiment), COMPASS (COMPact ASSembly), and ISTTOK (Instituto Superior Tecnico TOKamak) tokamak. The electron temperature is provided by a combination of the BPP potential (ΦBPP) and the floating potential (Vfl) of the Langmuir probe (LP), which is compared with the Thomson scattering diagnostic on ASDEX Upgrade and COMPASS. Excellent agreement between the two diagnostics is obtained for circular and diverted plasmas and different heating mechanisms (Ohmic, NBI, ECRH) in deuterium discharges with the same formula Te = (ΦBPP - Vfl)/2.2. The comparative measurements of the electron temperature using BPP/LP and triple probe (TP) techniques on the ISTTOK tokamak show good agreement of averaged values only inside the separatrix. It was also found that the TP provides the electron temperature with significantly higher standard deviation than BPP/LP. However, the resulting values of both techniques are well in the phase with the maximum of cross-correlation function being 0.8.
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Sousa S, Gonçalves MJ, Inês LS, Eugénio G, Jesus D, Fernandes S, Terroso G, Romão VC, Cerqueira M, Raposo A, Couto M, Nero P, Sequeira G, Nóvoa T, Melo Gomes JA, da Silva JC, Costa L, Macieira C, Silva C, Silva JAP, Canhão H, Santos MJ. Clinical features and long-term outcomes of systemic lupus erythematosus: comparative data of childhood, adult and late-onset disease in a national register. Rheumatol Int 2016; 36:955-60. [PMID: 26979603 DOI: 10.1007/s00296-016-3450-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 02/22/2016] [Indexed: 11/28/2022]
Abstract
Systemic lupus erythematosus (SLE) affects predominantly women at reproductive age but may present at any age. Age at disease onset has a modulating effect on presentation and course of disease, but controversies persist regarding its impact on long-term outcome. Our aims were to characterize clinical features, co-morbidities and cumulative damage in childhood-onset, adult-onset and late-onset SLE. Patients with childhood-onset SLE fulfilling ACR 1997 criteria were identified in a nationwide register-Reuma.pt/SLE (N = 89) and compared with adult-onset and late-onset counterparts matched 1:1:1 for disease duration. 267 SLE patients with mean disease duration of 11.9 ± 9.3 years were analyzed. Skin (62 %), kidney (58 %), neurological (11 %) and hematologic involvement (76 %) were significantly more common in childhood-onset SLE and disease activity was higher in this subset than in adult- and late-onset disease (SLEDAI-2K 3.4 ± 3.8 vs. 2.2 ± 2.7 vs. 1.6 ± 2.8, respectively; p = 0.004). Also, more childhood-onset patients received cyclophosphamide (10 %) and mycophenolate mofetil (34 %). A greater proportion of women (96 %), prevalence of arthritis (89 %) and anti-SSA antibodies (34 %) were noted in the adult-onset group. There was a significant delay in the diagnosis of SLE in older ages. Co-morbidities such as hypertension, diabetes and thyroid disease were significantly more frequent in late-onset SLE, as well as the presence of irreversible damage evaluated by the SLICC/ACR damage index (20 vs. 26 vs. 40 %; p < 0.001). Greater organ involvement as well as the frequent need for immunosuppressants supports the concept of childhood-onset being a more severe disease. In contrast, disease onset is more indolent but co-morbidity burden and irreversible damage are greater in late-onset SLE, which may have implications for patients' management.
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Rocha M, Soares S, Silva S, Madeira N, Silva C. The effects of alexithymia in the recognition of dynamic emotional faces. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
IntroductionAlexithymia is a multifactorial personality trait observed in several mental disorders, especially those with poor social functioning. Although it has been proposed that difficulties in interpersonal interactions in highly alexithymic individuals may stem from their reduced ability to express and recognize facial expressions, this still remains controversial.AimIn everyday life, faces displaying emotions are dynamic, although most studies have relied on static stimuli. The aim of this study was to investigate whether individuals with high levels of alexithymia differed from a control group in the categorization of emotional faces presented in a dynamic way. Given the highly dynamic nature of facial displays in real life, we used morphed videos depicting faces varying 1% from neutral to angry, disgust or happy faces, with a video presentation of 35 seconds.MethodSixty participants (27 males and 33 females) were divided into high (HA) and low levels of alexithymia (LA) by using the Toronto Alexithymia Scale (TAS-20). Participants were instructed to watch the face change from neutral to an emotion and to press a keyboard as soon as they could categorize an emotion expressed in the face.ResultsThe results revealed an interaction between alexithymia and emotion showing that HA, compared to LA, were more inaccurate at categorizing angry faces.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Serrano-Gomez SJ, Sanabria MC, Hernández-Suarez GA, Garcia O, Silva C, Romero A, Mejía JC, Fejerman L, Antonia T, Miele L, Zabaleta J. Abstract P1-08-09: Increased prevalence of luminal B subtype in Colombian women with breast cancer. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-08-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast cancer is the most frequent malignancy in women worldwide. Distinct intrinsic subtypes of breast cancer have different prognoses, and their relative prevalence varies significantly among ethnic groups. Hispanic/Latino (H/L) populations are a genetically admixed and heterogeneous group, with variable levels of European, Native American and African ancestries. Breast cancer in H/L patients is understudied from a molecular standpoint, and most studies reported so far include limited numbers of H/L patients and assign ethnicity based on self-reported data rather than ancestry. This is the first study to explore the prevalence of breast cancer intrinsic subtypes in Colombia and their association with clinicopathological data and genetic ancestry.
Methods: Immunohistochemistry surrogates from the 2013 St. Gallen International Expert Consensus were applied to classify breast cancer into intrinsic subtypes in 301 patients diagnosed between 2008 and 2012 at the Colombian National Cancer Institute. We analyzed the distribution of subtypes by age, histologic type, node status, margins at surgery, AJCC stage, tumor size, Bloom-Richardson grade, histologic features, administration and response to neoadjuvant therapy, adjuvant therapy and recurrence. Genetic ancestry was estimated from a panel of 80 ancestry-informative markers (AIM).
Results: Luminal B breast cancer subtype was the most prevalent in our population (47.5%), followed by luminal A (23.9%), non-basal triple negative (9.3%), basal-like (8.6%), HER2-enriched (8%), and unknown (2.6%). The average of age at diagnosis was 55 and the average tumor size was 4.08 cm. We found statistical significant differences in age at diagnosis, Bloom-Richardson grade, histologic features, adjuvant chemotherapy and recurrence according to intrinsic subtype. Consistent with North American and European observations, basal-like and non-basal triple negative were poorly differentiated tumors and more likely to be diagnosed at younger ages compared to luminal tumors. Patients diagnosed with HER2-enriched, basal and non-basal triple negative breast cancer had the highest African ancestry.
Conclusions: Luminal B tumors, a high risk subset of ER-positive breast cancer, occur with remarkably higher prevalence in Colombian women with breast cancer compared to North American and European populations. Triple-negative subtypes and HER2-enriched tumors appeared to be more frequent among patients with African ancestry, as observed in North American cohorts. Future studies analyzing the molecular profiles of breast cancer in Colombian women will help us understand the molecular basis of this subtype distribution and compare the molecular characteristics of the different intrinsic subtypes in Colombian Hispanic/Latina patients.
Citation Format: Serrano-Gomez SJ, Sanabria MC, Hernández-Suarez GA, Garcia O, Silva C, Romero A, Mejía JC, Fejerman L, Antonia T, Miele L, Zabaleta J. Increased prevalence of luminal B subtype in Colombian women with breast cancer. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-08-09.
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Camacho J, Horvath E, Pizzolon MF, Pinochet MA, Gallegos M, Galleguillos C, Uchida M, Cadiz F, Silva C. Abstract P4-03-09: Malignant hyperechoic lesions in breast ultrasound - Frequency and characteristics. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p4-03-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
PURPOSE
Challenge current axiom regarding hyperechogenic lesions in breast US categorized as mainly benign lesions. 2) Present frequency of malignant hyperechoic lesions, describe their sonographic and histological characteristics.
METHOD AND MATERIALS
IRB approved retrospective review of 2369 consecutive US-guided Core biopsies between 2006 and 2014. Lesions were considered hyperechogenic when more than 90% of its volume had higher echogenicity than surrounding subcutaneous tissue. Variables assessed were: age, size, histology, mass or non-mass, margins, echogenicity, acoustic effect, orientation, location, presence of a hypoechoic center, vascularization and BI-RADS category. Qualitative variables were described by percentage distribution, mean and SD.
RESULTS
Thirty one (1,3%) lesions biopsied were hyperechoic: only 17 (54.8%) were benign. We found 14 patients (range, 39-81 years, mean 57,5 years) with hyperechoic cancers, accounting for 1,77% of all cancers. 12 (85,7%) were ductal and 2 (14,3%) lobular histology (mean 17,5 mm range 8-40mm). All of them exhibited a small central hypoechoic area and were partially or completely surrounded by fatty tissue. Shape, margins, orientation and vascular architecture were highly suggestive of malignancy at US, mammography and in MRI (BI-RADS 4B and 5). On histology, all lesions were surrounded by fatty tissue, with a low–cell count collagenous center with a higher peripheral cellularity, mixing and interweaving with adipose tissue.
CONCLUSION
Hyperechogenic breast cancers are rare (1.77%), and we challenge the current concept of high rate of benignity with a 45,2% of chances for malignancy. We propose that hyperechogenicity is given by interweaving bundles with adipose tissue, which provide higher amount of acoustic reflective surfaces, thus explaining its sonographic pattern.
CLINICAL RELEVANCE/APPLICATION
Hyperechogenic breast lesions should not be considered as always benign. Malignancy thresholds should not be influenced by this sonographic characteristic.
We propose histopathological explanation of this sonographic pattern.
Citation Format: Camacho J, Horvath E, Pizzolon MF, Pinochet MA, Gallegos M, Galleguillos C, Uchida M, Cadiz F, Silva C. Malignant hyperechoic lesions in breast ultrasound - Frequency and characteristics. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P4-03-09.
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Querido S, Machado D, Silva C, Nolasco F, Nunes A, Sampaio S, Cruz P, Oliveira C, Weigert A. Renal Transplantation in HIV-Infected Patients: The First Portuguese Review. Transplant Proc 2016; 47:946-9. [PMID: 26036491 DOI: 10.1016/j.transproceed.2015.03.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION With the introduction of combination antiretroviral therapy (cART), prognosis of human immunodeficiency virus (HIV) infection has been improved and kidney transplantation (KT) in HIV-positive patients became possible. METHODS We reviewed the demographic, clinical, laboratory, and therapeutic data of all the HIV-infected patients who underwent KT between 2009 (first KT in Portugal in a HIV-infected patient) and May 2014. Case accrual was through all Portuguese KT centers where a KT in an HIV-infected patient was performed. Patients were transplanted following the American and Spanish guideline recommendations that included maintenance on cART, undetectable plasma HIV RNA copies, and absolute CD4 counts of ≥ 200 cells/μL in the last 6 months. RESULTS Fourteen KT were performed on men and 3 on women. The mean age of patients at the time of transplantation was 49.9 ± 11.7 years. HIV status was known for 12 ± 5 years. Eight patients had AIDS in the past and all patients received grafts from deceased donors. Twelve patients (64.7%) underwent induction therapy with basiliximab and 2 patients experienced early graft loss. In 2 patients, humoral rejection was diagnosed and in 3 patients, cellular rejection. Two patients died and an additional patient had early graft loss. CONCLUSION KT is a possible, but challenging, renal replacement therapy in selected HIV-positive patients. Even in those with AIDS criteria in the past, when the disease is controlled, and after the reconstitution of the immune system with cART, KT can be performed. Nevertheless, the risk-benefit ratio for each patient needs to be taken in consideration.
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de Jesus AA, Deng Z, Brooks S, Kim H, Montealegre G, Chapelle D, Liu Y, Marrero B, Malle L, O'Brien M, Goodspeed W, Huang Y, Hashkes P, Nasrullayeva G, Terreri MT, Silva C, Arabshahi B, O'Neill K, Punaro M, Moorthy L, Reinhardt A, Lilleby V, Niemela J, Rosenzweig S, Fleisher T, Goldbach-Mansky R. Stratification of patients with autoinflammatory phenotypes by interferon (IFN) score suggests a new group of IFN mediated autoinflammatory diseases with overlapping clinical phenotypes. Pediatr Rheumatol Online J 2015. [PMCID: PMC4597000 DOI: 10.1186/1546-0096-13-s1-o35] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Machado FR, Pontes de Azevedo LC, Ferreira EMF, Lubarino J, Silva C, Schippers P, Pereira A, de Paula IC, Mazza BF, Assumpcao MC, Fernandes H, Akamine N, Salomao R, Silva E. Implementation of sepsis' treatment protocols in an emerging country from 2005-2014: an analysis of 21,103 patients. Intensive Care Med Exp 2015. [PMCID: PMC4898132 DOI: 10.1186/2197-425x-3-s1-a219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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David-Pereira A, Puga S, Gonçalves S, Amorim D, Silva C, Pertovaara A, Almeida A, Pinto-Ribeiro F. Metabotropic glutamate 5 receptor in the infralimbic cortex contributes to descending pain facilitation in healthy and arthritic animals. Neuroscience 2015; 312:108-19. [PMID: 26548413 DOI: 10.1016/j.neuroscience.2015.10.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 10/29/2015] [Accepted: 10/30/2015] [Indexed: 12/30/2022]
Abstract
The involvement of the prefrontal cortex in pain processing has been recently addressed. We studied the role of the infralimbic cortex (IL) and group I metabotropic glutamate receptors (mGluRs) in descending modulation of nociception in control and monoarthritic (ARTH) conditions. Nociception was assessed using heat-induced paw withdrawal while drugs were microinjected in the IL of rats. Local anesthesia of the IL or the adjacent prelimbic cortex (PL) facilitated nociception, indicating that IL and PL are tonically promoting spinal antinociception. Phasic activation with glutamate (GLU) revealed opposing roles of the PL and IL; GLU in the PL had a fast antinociceptive action, while in the IL it had a slow onset pronociceptive action. IL administration of a local anesthetic or GLU produced identical results in ARTH and control animals. An mGluR5 agonist in the IL induced a pronociceptive effect in both groups, while mGluR5 antagonists had no effect in controls but induced antinociception in ARTH rats. Activation of the IL mGluR1 (through co-administration of mGluR1/5 agonist and mGluR5 antagonist) did not alter nociception in controls but induced antinociception in ARTH animals. IL administration of an mGluR1 antagonist failed to alter nociception in either experimental group. Finally, mGluR5 but not mGluR1 antagonists blocked the pronociceptive action of GLU in both groups. The results indicate that IL contributes to descending modulation of nociception. mGluR5 in the IL enhance nociception in healthy control and monoarthritic animals, an effect that is tonic in ARTH. Moreover, activation of IL mGluR1s attenuates nociception following the development of monoarthritis.
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Silva C. Cerebellar atrophy by the jc virus in a patient with aids. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Serra L, Araya N, Gonzalez M, Hermansen I, Mery V, Descalzi F, Bustamante C, Silva C, de Marinis A. Cognitive behavioral therapy for insomnia treatment: good results with trained nurses and a limited number of sessions. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.09.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Silva C, Olate S, Pozzer L, Muñoz M, Cantín M, Uribe F, de Albergaría-Barbosa JR. Electrical Stimulation in the Bone Repair of Defects Created in Rabbit Skulls. INT J MORPHOL 2015; 33:1146-1150. [PMID: 27840552 DOI: 10.4067/s0717-95022015000300054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Electrical stimulation has been used in different conditions for tissue regeneration. The aim of this study was to analyze the tissue response of defects created in rabbit skulls to electrical stimulation. Two groups were formed, each with 9 New Zealand rabbits; two 5 mm defects were made, one in each parietal, with one being randomly filled with autogenous bone extracted as particles and the other maintained only with blood clotting. The rabbits were euthanized at 8 weeks and 15 weeks to then study the samples collected histologically. In the 8-week analysis bone formation was observed in the defects in the test and control filled with bone graft, whereas the defects with clotting presented a very early stage of bone formation with abundant connective tissue. At 15 weeks an advanced stage of bone regeneration was identified in the defects with bone graft, whereas no significant differences were found in the electrically stimulated defects. In conclusion, electrical stimulus does not alter the sequence of bone formation; new studies could help establish patterns and influences of the stimulus on bone regeneration.
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Saquetto M, Carvalho V, Silva C, Conceição C, Gomes-Neto M. The effects of whole body vibration on mobility and balance in children with cerebral palsy: a systematic review with meta-analysis. JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 2015; 15:137-44. [PMID: 26032205 PMCID: PMC5133716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE We performed a meta-analysis to evaluate the effects of whole-body vibration on physiologic and functional measurements in children with cerebral palsy. DESIGN AND METHODS We searched MEDLINE, Cochrane Controlled Trials Register, EMBASE, Scielo, CINAHL (from the earliest date available to November 2014) for randomized controlled trials, that aimed to investigate the effects of whole-body vibration versus exercise and/or versus control on physiologic and functional measurements in children with cerebral palsy. Two reviewers independently selected the studies. Weighted mean differences (WMDs) and 95% confidence intervals (CIs) were calculated. RESULTS Six studies with 176 patients comparing whole-body vibration to exercise and/or control were included. Whole-body vibration resulted in improvement in: gait speed WMDs (0.13 95% CI: 0.05 to 0.20); gross motor function dimension E WMDs (2.97 95% CI: 0.07 to 5.86) and femur bone density (1.32 95% CI: 0.28 to 2.36). The meta-analysis also showed a nonsignificant difference in muscle strength and gross motor function dimension D for participants in the whole-body vibration compared with control group. No serious adverse events were reported. CONCLUSIONS Whole-body vibration may improve gait speed and standing function in children with cerebral palsy and could be considered for inclusion in rehabilitation programs.
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Sousa S, Gonçalves M, Inês L, Eugénio G, Jesus D, Fernandes S, Terroso G, Romão V, Cerqueira M, Raposo A, Couto M, Nero P, Sequeira G, Novoa T, Melo Gomes J, Canas da Silva J, Costa L, Macieira C, Silva C, Pereira da Silva J, Canhão H, Santos M. AB0608 Greater Organ Involvement and Disease Activity in Childhood-Onset than Adult-Onset With SLE (DATA from Reuma.Pt/Les): Table 1. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Carreira J, Trevizan J, Kipper B, Perri S, Carvalho I, Rodrigues L, Silva C, Koivisto M. Impaired protamination and sperm DNA damage in a Nellore bull with high percentages of morphological sperm defects in comparison to normospermic bulls. ARQ BRAS MED VET ZOO 2015. [DOI: 10.1590/1678-7046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The routine semen evaluation assessing sperm concentration, motility and morphology, does not identify subtle defects in sperm chromatin architecture. Bulls appear to have stable chromatin, with low levels of DNA fragmentation. However, the nature of fragmentation and its impact on fertility remain unclear and there are no detailed reports characterizing the DNA organization and damage in this species. The intensive genetic selection, the use of artificial insemination and in vitro embryo production associated to the cryopreservation process can contribute to the chromatin damage and highlights the importance of sperm DNA integrity for the success of these technologies. Frozen-thawed semen samples from three ejaculates from a Nellore bull showed high levels of morphological sperm abnormalities (55.8±5.1%), and were selected for complementary tests. Damage of acrosomal (76.9±8.9%) and plasma membranes (75.7±9.3%) as well as sperm DNA strand breaks (13.8±9.5%) and protamination deficiency (3.7±0.6%) were significantly higher compared to the values measured in the semen of five Nellore bulls with normospermia (24.3±3.3%; 24.5±6.1%; 0.6±0.5%; 0.4±0.6% for acrosome, plasma membrane, DNA breaks and protamine deficiency, respectively) (P<0.05). Motility and percentage of spermatozoa with low mitochondrial potential showed no differences between groups. This study shows how routine semen analyses (in this case morphology) may point to the length and complexity of sperm cell damage emphasizing the importance of sperm function testing.
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Vieira S, Mateus D, Marques J, Silva C, Louro V, Greco C. EP-1495: Validation of a video-based tumor tracking system for brain stereotactic cancer patients. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41487-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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146
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Vazzana M, Andreani T, Fangueiro J, Faggio C, Silva C, Santini A, Garcia M, Silva A, Souto E. Tramadol hydrochloride: Pharmacokinetics, pharmacodynamics, adverse side effects, co-administration of drugs and new drug delivery systems. Biomed Pharmacother 2015; 70:234-8. [DOI: 10.1016/j.biopha.2015.01.022] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 01/23/2015] [Indexed: 12/25/2022] Open
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Villalón H, Toro R, Riesco I, Pinto M, Silva C. [Father involvement in childbirth]. ACTA ACUST UNITED AC 2015; 85:554-60. [PMID: 25697431 DOI: 10.4067/s0370-41062014000500005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 04/28/2014] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Recent initiatives have promoted the participation of fathers in the early care of their children. OBJECTIVE To assess the results of a program to encourage parental involvement in childbirth. Parents of healthy term newborns were randomly allocated to participate either in the birth experience or control. PATIENTS AND METHODS The protocol included: to dry the skin, umbilical cord cutting off, weight, height, and finally give him/her to the mother for the skin-to-skin contact. Heart rate (HR), respiratory (RR) and temperature were evaluated one hour later. In the first outpatient clinic assessment, mothers completed a questionnaire. 127 fathers participated either in the birth experience or control. RESULTS 62 followed the protocol and 65 the control. Both newborn groups were comparable. Also were fathers in age, education and rurality; mothers in primiparity. Significant differences: night care (37/62, 10/65 59.6% vs 15.4%, p<0.01); post prandial assistance (50/62, 14/65 80.6% vs 21.5%, p<0.01); participation in bathing (38/62, 61.3% vs 15/65, 23.1%, p<0.01); newborn visit upon arrival at home (46/62, 74.2% vs 22/65, 33.8%, p<0.01); helping in crying episodes (42/62, 67.7% vs 17/65, 26.1%, p<0.01). There was stability in HR, RR and temperature one hour postpartum. Only one case of complication among parents (fainting). CONCLUSIONS There were more cases of early care behaviors among participating fathers at birth, even belonging to a discouraging socio cultural environment.
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Póntigo F, Silva C, Moraga M, Flores S. Streptococcus massiliensis in the human mouth: a phylogenetic approach for the inference of bacterial habitats. GENETICS AND MOLECULAR RESEARCH 2015; 14:19184-90. [DOI: 10.4238/2015.december.29.28] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Dasanayaka S, Sardana G, Silva C. Technology support from cluster development initiatives to SMEs: a study of motor spare parts enterprises in Sri Lanka. INTERNATIONAL JOURNAL OF SERVICES TECHNOLOGY AND MANAGEMENT 2015. [DOI: 10.1504/ijstm.2015.071105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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150
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Laires P, Conceição J, Araújo F, Dores J, Silva C, Radican L, Nogueira AM. Hipos-Er (Hypoglycemia in Portugal Observational Study - Emergency Room): Costs And Health Care Resource Consumption Data. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A352. [PMID: 27200686 DOI: 10.1016/j.jval.2014.08.739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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