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Low levels of sulfur and cobalt during the pre- and periconceptional periods affect the oocyte yield of donors and the DNA methylome of preimplantation bovine embryos
- Allice R. Ferreira Nochi, Luna N. Vargas, Roberto Sartori, Roberto G. Júnior, Davi B. Araújo, Ricardo A. Figueiredo, Roberto C. Togawa, Marcos M. C. Costa, Priscila Grynberg, Anelise S. Mendonça, Nayara R. Kussano, Ivo Pivato, Bianca D. M. Silva, José Felipe W. Spricigo, Ligiane O. Leme, Joseane P. da Silva, Alexandre R. Caetano, Margot A. N. Dode, Maurício M. Franco
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- Journal:
- Journal of Developmental Origins of Health and Disease / Volume 13 / Issue 2 / April 2022
- Published online by Cambridge University Press:
- 04 May 2021, pp. 231-243
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Maternal nutrition is critical in mammalian development, influencing the epigenetic reprogramming of gametes, embryos, and fetal programming. We evaluated the effects of different levels of sulfur (S) and cobalt (Co) in the maternal diet throughout the pre- and periconceptional periods on the biochemical and reproductive parameters of the donors and the DNA methylome of the progeny in Bos indicus cattle. The low-S/Co group differed from the control with respect to homocysteine, folic acid, B12, insulin growth factor 1, and glucose. The oocyte yield was lower in heifers from the low S/Co group than that in the control heifers. Embryos from the low-S/Co group exhibited 2320 differentially methylated regions (DMRs) across the genome compared with the control embryos. We also characterized candidate DMRs linked to the DNMT1 and DNMT3B genes in the blood and sperm cells of the adult progeny. A DMR located in DNMT1 that was identified in embryos remained differentially methylated in the sperm of the progeny from the low-S/Co group. Therefore, we associated changes in specific compounds in the maternal diet with DNA methylation modifications in the progeny. Our results help to elucidate the impact of maternal nutrition on epigenetic reprogramming in livestock, opening new avenues of research to study the effect of disturbed epigenetic patterns in early life on health and fertility in adulthood. Considering that cattle are physiologically similar to humans with respect to gestational length, our study may serve as a model for studies related to the developmental origin of health and disease in humans.
Brain Drain or Gain? Psychiatric Trainees On the Move
- M. Pinto da Costa, E. Andreou, V. Banjac, F. Baessler, E. Biskup, E. El-Higaya, M. Farrugia, D. Frydecka, T. Gargot, A. Giurgiuca, K. Holmes, O. Kilic, P. Marinova, M. Mitkovic Voncina, M. Pantovic, A. Pontarollo, C. Skjødt, M. Stoyanova, G. Strada, S. Tomori, EFPT Research Group
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- Journal:
- European Psychiatry / Volume 30 / Issue S1 / March 2015
- Published online by Cambridge University Press:
- 15 April 2020, p. 1
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Introduction
Migration of mental health professionals is an important phenomenon influencing mental health services of host and donor countries. Data on medical migration in Europe is very limited, particularly in the field of young doctors and psychiatry. To research this hot topic, the European Federation of Psychiatric Trainees (EFPT) conducted the EFPT Brain Drain Survey.
ObjectivesTo identify the impact of previous short-term mobility on international migration and to understand characteristics, patterns and reasons of migration.
MethodsIn this cross-sectional European multicentre study, data were collected from 2281 psychiatric trainees across 33 countries. All participants answered to the EFPT Brain Drain Survey reporting their attitudes and experiences on migration.
ResultsTwo-thirds of the trainees had not had a short-mobility experience in their lifetime, but those that went abroad were satisfied with their experiences, reporting that these influenced their attitude towards migration positively. However, the majority of the trainees had not had a migratory experience of more than 1 year. Flows showed that Switzerland and United Kingdom have the greatest number of immigrant trainees, whereas Germany and Greece have the greatest number of trainees leaving. ‘'Pull factors'’ were mostly academic and personal reasons, whereas ‘'push factors'’ were mainly: academic and financial reasons. Trainees that wanted to leave the country were significantly more dissatisfied with their income.
ConclusionsThe majority of the trainees has considered leaving the country they currently lived in, but a lower percentage has taken steps towards migration.
To which countries do European psychiatric trainees want to move to and why?
- M. Pinto da Costa, A. Giurgiuca, K. Holmes, E. Biskup, T. Mogren, S. Tomori, O. Kilic, V. Banjac, R. Molina-Ruiz, C. Palumbo, D. Frydecka, J. Kaaja, E. El-Higaya, A. Kanellopoulos, B.H. Amit, D. Madissoon, E. Andreou, I. Uleviciute-Belena, I. Rakos, J. Dragasek, K. Feffer, M. Farrugia, M. Mitkovic-Voncina, T. Gargot, F. Baessler, M. Pantovic-Stefanovic, L. De Picker
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- European Psychiatry / Volume 45 / September 2017
- Published online by Cambridge University Press:
- 23 March 2020, pp. 174-181
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Background:
There is a shortage of psychiatrists worldwide. Within Europe, psychiatric trainees can move between countries, which increases the problem in some countries and alleviates it in others. However, little is known about the reasons psychiatric trainees move to another country.
Methods:Survey of psychiatric trainees in 33 European countries, exploring how frequently psychiatric trainees have migrated or want to migrate, their reasons to stay and leave the country, and the countries where they come from and where they move to. A 61-item self-report questionnaire was developed, covering questions about their demographics, experiences of short-term mobility (from 3 months up to 1 year), experiences of long-term migration (of more than 1 year) and their attitudes towards migration.
Results:A total of 2281 psychiatric trainees in Europe participated in the survey, of which 72.0% have ‘ever’ considered to move to a different country in their future, 53.5% were considering it ‘now’, at the time of the survey, and 13.3% had already moved country. For these immigrant trainees, academic was the main reason they gave to move from their country of origin. For all trainees, the overall main reason for which they would leave was financial (34.4%), especially in those with lower (<500€) incomes (58.1%), whereas in those with higher (>2500€) incomes, personal reasons were paramount (44.5%).
Conclusions:A high number of psychiatric trainees considered moving to another country, and their motivation largely reflects the substantial salary differences. These findings suggest tackling financial conditions and academic opportunities.
Native vs. Migrants – same Opportunities or Discriminated? – Psychiatry Trainees's Views from the EFPT Brain Drain Study
- M. Pinto da Costa, S. Tomori, T. Mogren, E. Biskup, F. Baessler, D. Frydecka, O. Killic, E. Research Group
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- Journal:
- European Psychiatry / Volume 41 / Issue S1 / April 2017
- Published online by Cambridge University Press:
- 23 March 2020, pp. S624-S625
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Introduction
It is a well known fact that qualified health professionals generally migrate to high-income, developed regions. Nevertheless, the perceptions of this immigrant skilled health workforce on access to opportunities or feeling discriminated in their host countries, have not yet been explored or adequately addressed.
ObjectivesThis work has focused on the perceptions of immigrant psychiatry trainees in several European countries about their views on having equal access to opportunities as natives or feeling discriminated.
MethodsA semi-structured 61-item questionnaire was circulated by National Coordinators in each country and was completed by 2281 psychiatric trainees from 33 European countries between year 2013 and 2014. Data has been analysed using the Software Package for Social Sciences for Windows v. 22.0 (SPSS Inc. Chicago, IL).
ResultsIn these findings, more than one in ten psychiatry trainees across Europe were immigrants, with top host countries being Switzerland, Sweden and UK. Satisfaction with migration and the perception of having equal opportunities as the native trainees varied depending on the host country they migrated to. More than one-third of the trainees felt discriminated, not having the same opportunities as the local colleagues, especially concerning the work opportunities and the academic conditions. Still, nearly two-thirds considered having the same opportunities than natives.
ConclusionsA high number of immigrant psychiatry trainees subjectively feels they do not have the same opportunities as local trainees. Further research about factual and perceived discrimination by immigrant workforce should be done.
Disclosure of interestThe authors have not supplied their declaration of competing interest.
Partial replacement of nitrogen fertilization with legumes in tropical pasture overseeded with temperate species for the production of steers
- G. R. Schmitz, W. Paris, R. R. Biesek, O. A. D. Costa, R. D. Mafioletti, A. M. Umezaki, L. F. G. Menezes
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- The Journal of Agricultural Science / Volume 157 / Issue 7-8 / October 2019
- Published online by Cambridge University Press:
- 22 January 2020, pp. 628-635
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Using legumes in forage mixes can help decrease the use of nitrogen fertilizers and possibly increase the nutritive value of pasture. The aim of the current study was to determine animal production and behavioural and ingestion parameters by evaluating the production and nutritive value of Aruana grass (Panicum maximum ‘Aruana’) intercropped with forage peanut (Arachis pintoi ‘Amarillo’) or fertilized with nitrogen. The treatments were N200 (200 kg N/ha per season – summer and winter), 100N + PE (100 kg N/ha per season plus pasture mixture with forage peanut) and N100 (100 kg N/ha per season). The presence of forage peanut in the pasture did not replace nitrogen fertilization as the pasture fertilized with 200 kg of nitrogen had a greater leaf/stem ratio (0.66 v. 0.54), stocking rate (2600 v. 2290 kg live weight/ha), average daily gain (0.880 v. 0.700 kg/day) and live weight gain (LWG) (652 v. 468 kg/ha) during summer. During winter, no effect of increased nitrogen fertilization on pasture and animal production was observed. In the total study period (summer + winter), a greater LWG (897 v. 741 kg/ha) occurred when a higher quantity of nitrogen (N200) was placed in the pasture compared to the insertion of forage peanuts in the system.
In vitro anthelmintic activity of Siparuna guianensis extract and essential oil against Strongyloides venezuelensis
- V.F. Carvalho, L. dos A. Ramos, C.A. da Silva, L. Nebo, D. Moraes, F.F.A. da Silva, N.C.A. da Costa, R. de O. Rodrigues Junior, L.F. de Souza, R.M. Rodrigues
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- Journal:
- Journal of Helminthology / Volume 94 / 2020
- Published online by Cambridge University Press:
- 11 April 2019, e50
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New therapeutic approaches are necessary to control strongyloidiasis due to the side effects of, and resistance to, currently available drugs thiabendazole, albendazole, and ivermectin. This study examined the anthelmintic properties of extracts and isolated compounds from Siparuna guianensis against Strongyloides venezuelensis eggs and larvae, using the egg hatching test (EHT) and larval motility test (LMT). Albendazole (0.025 mg/ml) and ivermectin (0.316 mg/ml) were used as the positive controls for the EHT and LMT assays, respectively. Strongyloides venezuelensis eggs or larvae (±50 specimens) were treated with ethanol extract (0.05–1.0 mg/ml), ethyl acetate and aqueous fractions (0.05–0.8 mg/ml), essential oil (0.2–1.0 mg/ml) and α-bisabolol (0.2–1.0 mg/ml) from S. guianensis, and analysed by optical microscopy after 48 h (EHT), or after 24, 48 and 72 h (LMT). All the tested compounds exhibited ovicidal activity equivalent to the positive control and changed the morphology of the eggs. The S. guianensis ethanol extract and aqueous fraction were as effective as the positive control. Phytochemical analysis of the ethanol extract and fractions revealed the presence of phenolic compounds, tannins and flavonoids. Therefore, S. guianensis is effective against S. venezuelensis eggs and larvae in vitro, and can be considered as a potential alternative treatment for strongyloidiasis.
Dietary patterns and cardiometabolic risk factors among adolescents: systematic review and meta-analysis
- Carla de Magalhães Cunha, Priscila R. F. Costa, Lucivalda P. M. de Oliveira, Valterlinda A. de O. Queiroz, Jacqueline C. D. Pitangueira, Ana Marlúcia Oliveira
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- Journal:
- British Journal of Nutrition / Volume 119 / Issue 8 / 28 April 2018
- Published online by Cambridge University Press:
- 12 April 2018, pp. 859-879
- Print publication:
- 28 April 2018
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This study systematised and synthesised the results of observational studies that were aimed at supporting the association between dietary patterns and cardiometabolic risk (CMR) factors among adolescents. Relevant scientific articles were searched in PUBMED, EMBASE, SCIENCE DIRECT, LILACS, WEB OF SCIENCE and SCOPUS. Observational studies that included the measurement of any CMR factor in healthy adolescents and dietary patterns were included. The search strategy retained nineteen articles for qualitative analysis. Among retained articles, the effects of dietary pattern on the means of BMI (n 18), waist circumference (WC) (n 9), systolic blood pressure (n 7), diastolic blood pressure (n 6), blood glucose (n 5) and lipid profile (n 5) were examined. Systematised evidence showed that an unhealthy dietary pattern appears to be associated with poor mean values of CMR factors among adolescents. However, evidence of a protective effect of healthier dietary patterns in this group remains unclear. Considering the number of studies with available information, a meta-analysis of anthropometric measures showed that dietary patterns characterised by the highest intake of unhealthy foods resulted in a higher mean BMI (0·57 kg/m²; 95 % CI 0·51, 0·63) and WC (0·57 cm; 95 % CI 0·47, 0·67) compared with low intake of unhealthy foods. Controversially, patterns characterised by a low intake of healthy foods were associated with a lower mean BMI (−0·41 kg/m²; 95 % CI −0·46,−0·36) and WC (−0·43 cm; 95 % CI −0·52,−0·33). An unhealthy dietary pattern may influence markers of CMR among adolescents, but considering the small number and limitations of the studies included, further studies are warranted to strengthen the evidence of this relation.
The population of planetary nebulae near the Galactic Centre: chemical abundances
- M. Mollá, O. Cavichia, R. D. D. Costa, W. J. Maciel
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- Journal:
- Proceedings of the International Astronomical Union / Volume 12 / Issue S323 / October 2016
- Published online by Cambridge University Press:
- 08 August 2017, pp. 339-340
- Print publication:
- October 2016
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In this work, we report physical parameters and abundances derived for a sample of 15 high extinction planetary nebulae located in the inner 2° of the Galactic bulge, based on low dispersion spectroscopy secured at the SOAR telescope using the Goodman spectrograph. The new data allow us to extend our database including older, weaker objects that are at the faint end of the planetary nebulae luminosity function. The data provide chemical compositions for PNe located in this region of the bulge to explore the chemical enrichment history of the central region of the Galactic bulge. The results show that the abundances of our sample are skewed to higher metallicities than previous data in the outer regions of the bulge. This can indicate a faster chemical enrichment taking place at the Galactic centre.
DESAlert: Enabling Real-Time Transient Follow-Up with Dark Energy Survey Data
- A. Poci, K. Kuehn, T. Abbott, F. B. Abdalla, S. Allam, A.H. Bauer, A. Benoit-Lévy, E. Bertin, D. Brooks, P. J. Brown, E. Buckley-Geer, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, R. Covarrubias, L. N. da Costa, C. B. D’Andrea, D. L. DePoy, S. Desai, J. P. Dietrich, C. E Cunha, T. F. Eifler, J. Estrada, A. E. Evrard, A. Fausti Neto, D. A. Finley, B. Flaugher, P. Fosalba, J. Frieman, D. Gerdes, D. Gruen, R. A. Gruendl, K. Honscheid, D. James, N. Kuropatkin, O. Lahav, T. S. Li, M. March, J. Marshall, K. W. Merritt, C.J. Miller, R. C. Nichol, B. Nord, R. Ogando, A. A. Plazas, A. K. Romer, A. Roodman, E. S. Rykoff, M. Sako, E. Sanchez, V. Scarpine, M. Schubnell, I. Sevilla, C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. E. C. Swanson, G. Tarle, J. Thaler, R. C. Thomas, D. Tucker, A. R. Walker, W. Wester, (The DES Collaboration)
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- Publications of the Astronomical Society of Australia / Volume 33 / 2016
- Published online by Cambridge University Press:
- 30 September 2016, e049
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The Dark Energy Survey is undertaking an observational programme imaging 1/4 of the southern hemisphere sky with unprecedented photometric accuracy. In the process of observing millions of faint stars and galaxies to constrain the parameters of the dark energy equation of state, the Dark Energy Survey will obtain pre-discovery images of the regions surrounding an estimated 100 gamma-ray bursts over 5 yr. Once gamma-ray bursts are detected by, e.g., the Swift satellite, the DES data will be extremely useful for follow-up observations by the transient astronomy community. We describe a recently-commissioned suite of software that listens continuously for automated notices of gamma-ray burst activity, collates information from archival DES data, and disseminates relevant data products back to the community in near-real-time. Of particular importance are the opportunities that non-public DES data provide for relative photometry of the optical counterparts of gamma-ray bursts, as well as for identifying key characteristics (e.g., photometric redshifts) of potential gamma-ray burst host galaxies. We provide the functional details of the DESAlert software, and its data products, and we show sample results from the application of DESAlert to numerous previously detected gamma-ray bursts, including the possible identification of several heretofore unknown gamma-ray burst hosts.
Body adiposity and bone parameters of male rats from mothers fed diet containing flaxseed flour during lactation
- C. A. S. da Costa, P. C. A. da Silva, D. C. Ribeiro, A. D. D. Pereira, A. d. S. d. Santos, L. d. A. Maia, L. D. G. Ruffoni, F. C. de Santana, M. D. C. de Abreu, B. F. d. C. Boueri, C. R. Pessanha, K. O. Nonaka, J. Mancini-Filho, C. C. A. do Nascimento-Saba, G. T. Boaventura
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- Journal of Developmental Origins of Health and Disease / Volume 7 / Issue 3 / June 2016
- Published online by Cambridge University Press:
- 07 December 2015, pp. 314-319
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Obesity and osteoporosis may have their origins in early postnatal life. This study was designed to evaluate whether flaxseed flour use during lactation period bears effect on body adiposity and skeletal structure of male rat pups at weaning. At birth, male Wistar rats were randomly assigned to control and experimental (FF) groups, whose dams were treated with control or flaxseed flour diet, respectively, during lactation. At 21 days of age, pups were weaned to assess body mass, length and composition by dual-energy X-ray absorptiometry. The animals were then sacrificed to carry out analysis of serum profile, intra-abdominal adipocyte morphology and femur characteristics. Differences were considered significant when P<0.05. The FF group displayed the following characteristics (P<0.05): higher body mass, length, bone mineral content, bone area and concentrations of osteoprotegerin, osteocalcin and high-density lipoprotein cholesterol; higher levels of stearic, α-linolenic, eicosapentaenoic and docosapentaenoic acids and lower levels of arachidonic acid and cholesterol; smaller adipocyte area; and higher mass, epiphysis distance, diaphysis width, maximal load, break load, resilience and stiffness of femur. Flaxseed flour intake during lactation period promoted adipocyte hypertrophy down-regulation and contributed to pup bone quality at weaning.
A cluster of Rickettsia rickettsii infection at an animal shelter in an urban area of Brazil
- T. ROZENTAL, M. S. FERREIRA, R. GOMES, C. M. COSTA, P. R. A. BARBOSA, I. O. BEZERRA, M. H. O. GARCIA, D. M. OLIVEIRA E CRUZ, R. GALLIEZ, S. OLIVEIRA, P. BRASIL, T. REZENDE, E. R. S. DE LEMOS
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- Journal:
- Epidemiology & Infection / Volume 143 / Issue 11 / August 2015
- Published online by Cambridge University Press:
- 08 December 2014, pp. 2446-2450
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Rickettsia rickettsii infection is being increasingly recognized as an important cause of fatal acute illness in Brazil, where this tick-borne disease is designated Brazilian spotted fever (BSF). In this study we report five fatal cases of BSF in employees of an animal shelter in an urban area in the municipality of Rio de Janeiro in southeast Brazil after a natural disaster on 11 January 2011. Four of the cases occurred from 27 January to 11 April 2011, while the fifth fatal case was identified in April 2012. Three cases were confirmed by molecular analysis and two by epidemiological linkage. An investigation of BSF was performed in the animal shelter, and blood samples were collected from 115 employees and 117 randomly selected dogs. The presence of high levels (1024–4096) of antibodies against spotted fever group rickettsiae was found in three (2·6%) employees and 114 (97·5%) dogs. These findings emphasize the need to consider BSF as a possible cause of undifferentiated febrile illness, especially dengue and leptospirosis, in patients occupationally exposed to dogs heavily infested by ticks, mainly working at kennels and animal shelters that have inadequate space for the animals housed and frequently providing an environment conducive to exposure to pathogens such as R. rickettsii.
Dietary glutamine prevents the loss of intestinal barrier function and attenuates the increase in core body temperature induced by acute heat exposure
- Anne D. N. Soares, Kátia A. Costa, Samuel P. Wanner, Rosana G. C. Santos, Simone O. A. Fernandes, Flaviano S. Martins, Jacques R. Nicoli, Cândido C. Coimbra, Valbert N. Cardoso
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- Journal:
- British Journal of Nutrition / Volume 112 / Issue 10 / 28 November 2014
- Published online by Cambridge University Press:
- 17 October 2014, pp. 1601-1610
- Print publication:
- 28 November 2014
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Dietary glutamine (Gln) supplementation improves intestinal function in several stressful conditions. Therefore, in the present study, the effects of dietary Gln supplementation on the core body temperature (Tcore), bacterial translocation (BT) and intestinal permeability of mice subjected to acute heat stress were evaluated. Male Swiss mice (4 weeks old) were implanted with an abdominal temperature sensor and randomly assigned to one of the following groups fed isoenergetic and isoproteic diets for 7 d before the experimental trials: group fed the standard AIN-93G diet and exposed to a high ambient temperature (39°C) for 2 h (H-NS); group fed the AIN-93G diet supplemented with l-Gln and exposed to a high temperature (H-Gln); group fed the standard AIN-93G diet and not exposed to a high temperature (control, C-NS). Mice were orally administered diethylenetriaminepentaacetic acid radiolabelled with technetium (99mTc) for the assessment of intestinal permeability or 99mTc-Escherichia coli for the assessment of BT. Heat exposure increased Tcore (approximately 41°C during the experimental trial), intestinal permeability and BT to the blood and liver (3 h after the experimental trial) in mice from the H-NS group relative to those from the C-NS group. Dietary Gln supplementation attenuated hyperthermia and prevented the increases in intestinal permeability and BT induced by heat exposure. No correlations were observed between the improvements in gastrointestinal function and the attenuation of hyperthermia by Gln. Our findings indicate that dietary Gln supplementation preserved the integrity of the intestinal barrier and reduced the severity of hyperthermia during heat exposure. The findings also indicate that these Gln-mediated effects occurred through independent mechanisms.
Contributors
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- By Rose Teteki Abbey, K. C. Abraham, David Tuesday Adamo, LeRoy H. Aden, Efrain Agosto, Victor Aguilan, Gillian T. W. Ahlgren, Charanjit Kaur AjitSingh, Dorothy B E A Akoto, Giuseppe Alberigo, Daniel E. Albrecht, Ruth Albrecht, Daniel O. Aleshire, Urs Altermatt, Anand Amaladass, Michael Amaladoss, James N. Amanze, Lesley G. Anderson, Thomas C. Anderson, Victor Anderson, Hope S. Antone, María Pilar Aquino, Paula Arai, Victorio Araya Guillén, S. Wesley Ariarajah, Ellen T. Armour, Brett Gregory Armstrong, Atsuhiro Asano, Naim Stifan Ateek, Mahmoud Ayoub, John Alembillah Azumah, Mercedes L. García Bachmann, Irena Backus, J. Wayne Baker, Mieke Bal, Lewis V. Baldwin, William Barbieri, António Barbosa da Silva, David Basinger, Bolaji Olukemi Bateye, Oswald Bayer, Daniel H. Bays, Rosalie Beck, Nancy Elizabeth Bedford, Guy-Thomas Bedouelle, Chorbishop Seely Beggiani, Wolfgang Behringer, Christopher M. Bellitto, Byard Bennett, Harold V. Bennett, Teresa Berger, Miguel A. Bernad, Henley Bernard, Alan E. Bernstein, Jon L. Berquist, Johannes Beutler, Ana María Bidegain, Matthew P. Binkewicz, Jennifer Bird, Joseph Blenkinsopp, Dmytro Bondarenko, Paulo Bonfatti, Riet en Pim Bons-Storm, Jessica A. Boon, Marcus J. Borg, Mark Bosco, Peter C. Bouteneff, François Bovon, William D. Bowman, Paul S. Boyer, David Brakke, Richard E. Brantley, Marcus Braybrooke, Ian Breward, Ênio José da Costa Brito, Jewel Spears Brooker, Johannes Brosseder, Nicholas Canfield Read Brown, Robert F. Brown, Pamela K. Brubaker, Walter Brueggemann, Bishop Colin O. Buchanan, Stanley M. Burgess, Amy Nelson Burnett, J. Patout Burns, David B. Burrell, David Buttrick, James P. Byrd, Lavinia Byrne, Gerado Caetano, Marcos Caldas, Alkiviadis Calivas, William J. Callahan, Salvatore Calomino, Euan K. Cameron, William S. Campbell, Marcelo Ayres Camurça, Daniel F. Caner, Paul E. Capetz, Carlos F. Cardoza-Orlandi, Patrick W. Carey, Barbara Carvill, Hal Cauthron, Subhadra Mitra Channa, Mark D. Chapman, James H. Charlesworth, Kenneth R. Chase, Chen Zemin, Luciano Chianeque, Philip Chia Phin Yin, Francisca H. Chimhanda, Daniel Chiquete, John T. Chirban, Soobin Choi, Robert Choquette, Mita Choudhury, Gerald Christianson, John Chryssavgis, Sejong Chun, Esther Chung-Kim, Charles M. A. Clark, Elizabeth A. Clark, Sathianathan Clarke, Fred Cloud, John B. Cobb, W. Owen Cole, John A Coleman, John J. Collins, Sylvia Collins-Mayo, Paul K. Conkin, Beth A. Conklin, Sean Connolly, Demetrios J. Constantelos, Michael A. Conway, Paula M. Cooey, Austin Cooper, Michael L. Cooper-White, Pamela Cooper-White, L. William Countryman, Sérgio Coutinho, Pamela Couture, Shannon Craigo-Snell, James L. Crenshaw, David Crowner, Humberto Horacio Cucchetti, Lawrence S. Cunningham, Elizabeth Mason Currier, Emmanuel Cutrone, Mary L. Daniel, David D. Daniels, Robert Darden, Rolf Darge, Isaiah Dau, Jeffry C. Davis, Jane Dawson, Valentin Dedji, John W. de Gruchy, Paul DeHart, Wendy J. Deichmann Edwards, Miguel A. De La Torre, George E. Demacopoulos, Thomas de Mayo, Leah DeVun, Beatriz de Vasconcellos Dias, Dennis C. Dickerson, John M. Dillon, Luis Miguel Donatello, Igor Dorfmann-Lazarev, Susanna Drake, Jonathan A. Draper, N. Dreher Martin, Otto Dreydoppel, Angelyn Dries, A. J. Droge, Francis X. D'Sa, Marilyn Dunn, Nicole Wilkinson Duran, Rifaat Ebied, Mark J. Edwards, William H. Edwards, Leonard H. Ehrlich, Nancy L. Eiesland, Martin Elbel, J. Harold Ellens, Stephen Ellingson, Marvin M. Ellison, Robert Ellsberg, Jean Bethke Elshtain, Eldon Jay Epp, Peter C. Erb, Tassilo Erhardt, Maria Erling, Noel Leo Erskine, Gillian R. Evans, Virginia Fabella, Michael A. Fahey, Edward Farley, Margaret A. Farley, Wendy Farley, Robert Fastiggi, Seena Fazel, Duncan S. Ferguson, Helwar Figueroa, Paul Corby Finney, Kyriaki Karidoyanes FitzGerald, Thomas E. FitzGerald, John R. Fitzmier, Marie Therese Flanagan, Sabina Flanagan, Claude Flipo, Ronald B. Flowers, Carole Fontaine, David Ford, Mary Ford, Stephanie A. Ford, Jim Forest, William Franke, Robert M. Franklin, Ruth Franzén, Edward H. Friedman, Samuel Frouisou, Lorelei F. Fuchs, Jojo M. Fung, Inger Furseth, Richard R. Gaillardetz, Brandon Gallaher, China Galland, Mark Galli, Ismael García, Tharscisse Gatwa, Jean-Marie Gaudeul, Luis María Gavilanes del Castillo, Pavel L. Gavrilyuk, Volney P. Gay, Metropolitan Athanasios Geevargis, Kondothra M. George, Mary Gerhart, Simon Gikandi, Maurice Gilbert, Michael J. Gillgannon, Verónica Giménez Beliveau, Terryl Givens, Beth Glazier-McDonald, Philip Gleason, Menghun Goh, Brian Golding, Bishop Hilario M. Gomez, Michelle A. Gonzalez, Donald K. Gorrell, Roy Gottfried, Tamara Grdzelidze, Joel B. Green, Niels Henrik Gregersen, Cristina Grenholm, Herbert Griffiths, Eric W. Gritsch, Erich S. Gruen, Christoffer H. Grundmann, Paul H. Gundani, Jon P. Gunnemann, Petre Guran, Vidar L. Haanes, Jeremiah M. 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Yee, Viktor Yelensky, Yeo Khiok-Khng, Gustav K. K. Yeung, Angela Yiu, Amos Yong, Yong Ting Jin, You Bin, Youhanna Nessim Youssef, Eliana Yunes, Robert Michael Zaller, Valarie H. Ziegler, Barbara Brown Zikmund, Joyce Ann Zimmerman, Aurora Zlotnik, Zhuo Xinping
- Edited by Daniel Patte, Vanderbilt University, Tennessee
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- Book:
- The Cambridge Dictionary of Christianity
- Published online:
- 05 August 2012
- Print publication:
- 20 September 2010, pp xi-xliv
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Effectiveness of the immunomodulatory extract of Kalanchoe pinnata against murine visceral leishmaniasis
- D. C. O. GOMES, M. F. MUZITANO, S. S. COSTA, B. ROSSI-BERGMANN
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- Journal:
- Parasitology / Volume 137 / Issue 4 / April 2010
- Published online by Cambridge University Press:
- 07 December 2009, pp. 613-618
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Previously, we described the protective action of the immunomodulatory extract of Kalanchoe pinnata (Kp) in murine and human cutaneous leishmaniasis. In the present study, we investigated the effectiveness of Kp against visceral leishmaniasis, using the BALB/c mouse model of infection with Leishmania chagasi. Mice receiving oral daily doses of Kp (400 mg/kg) for 30 days displayed significantly reduced hepatic and splenic parasite burden, when compared with untreated animals. Protectiveness was accompanied by a reduction in parasite-specific IgG serum levels, and impaired capacity of spleen cells to produce IL-4, but not IFN-γ and nitric oxide upon antigen recall in vitro. The reference drug Pentostam (72 mg/kg) given by the intra-peritoneal route on alternate days produced an anti-leishmanial effect similar to oral Kp. Our findings show that the oral efficacy of Kp, seen previously in murine cutaneous leishmaniasis, extends also to visceral leishmaniasis caused by L. chagasi, a difficult to treat and lethal disease of man.
Time Scales for Period Change in Pulsating White Dwarf Stars
- S. O. Kepler, J. E. S. Costa, D. E. Winget, M. D. Reed, S. D. Kawaler
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- Journal:
- International Astronomical Union Colloquium / Volume 176 / 2000
- Published online by Cambridge University Press:
- 12 April 2016, pp. 521-522
- Print publication:
- 2000
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We have used the rate of change of pulsation period for the hot (DOV) pre-white dwarf PG1159–035 and the cool (DAV) white dwarf G117–B15A to measure their evolutionary time scales. We show that, for any multiperiodic star, we must take into account the effect of all pulsations simultaneously on the times of maximum of the pulsations to get reliable measurements of periods and phases.