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Michael Soares

Marc Fahrner, Michael Stadlbauer, Martin Muik, Petr Rathner, Peter Stathopulos, Mitsu Ikura, Norbert Müller, Christoph Romanin
STIM1 and Orai1 are key components of the Ca2+ -release activated Ca2+ (CRAC) current. Orai1, which represents the subunit forming the CRAC channel complex, is activated by the ER resident Ca2+ sensor STIM1. The genetically inherited Stormorken syndrome disease has been associated with the STIM1 single point R304W mutant. The resulting constitutive activation of Orai1 mainly involves the CRAC-activating domain CAD/SOAR of STIM1, the exposure of which is regulated by the molecular interplay between three cytosolic STIM1 coiled-coil (CC) domains...
February 26, 2018: Nature Communications
Michael J Soares, Kaela Varberg, Khursheed Iqbal
Placentation is a reproductive adaptation that permits fetal growth and development within the protected confines of the female reproductive tract. Through this important role, the placenta also determines postnatal health and susceptibility to disease. The hemochorial placenta is prominent feature in primate and rodent development. This review offers an overview of the basics of hemochorial placental development and function, provides perspective on major discoveries that have shaped placental research, and thoughts on strategies for future investigation...
February 22, 2018: Biology of Reproduction
Ravi Mehta, Cristiane Nascimento Soares, Raquel Medialdea-Carrera, Mark Ellul, Marcus Tulius Texeira da Silva, Anna Rosala-Hallas, Marcia Rodrigues Jardim, Girvan Burnside, Luciana Pamplona, Maneesh Bhojak, Radhika Manohar, Gabriel Amorelli Medeiros da Silva, Marcus Vinicius Adriano, Patricia Brasil, Rita Maria Ribeiro Nogueira, Carolina Cardoso Dos Santos, Lance Turtle, Patricia Carvalho de Sequeira, David W Brown, Michael J Griffiths, Ana Maria Bispo de Filippis, Tom Solomon
BACKGROUND: During 2015-16 Brazil experienced the largest epidemic of Zika virus ever reported. This arthropod-borne virus (arbovirus) has been linked to Guillain-Barré syndrome (GBS) in adults but other neurological associations are uncertain. Chikungunya virus has caused outbreaks in Brazil since 2014 but associated neurological disease has rarely been reported here. We investigated adults with acute neurological disorders for Zika, chikungunya and dengue, another arbovirus circulating in Brazil...
February 12, 2018: PLoS Neglected Tropical Diseases
Breno Frederico de Carvalho Dominguez Souza, Alexander König, Andrea Rasche, Ianei de Oliveira Carneiro, Nora Stephan, Victor Max Corman, Pia Luise Roppert, Nora Goldmann, Ramona Kepper, Simon Franz Müller, Christof Völker, Alex Junior Souza de Souza, Michele Soares Gomes-Gouvêa, Andrés Moreira-Soto, Andreas Stöcker, Michael Nassal, Carlos Roberto Franke, João Renato Rebello Pinho, Manoel do Carmo Pereira Soares, Joachim Geyer, Philippe Lemey, Christian Drosten, Eduardo Martins Netto, Dieter Glebe, Jan Felix Drexler
BACKGROUND & AIMS: All known hepatitis B virus (HBV) genotypes occur in humans and hominoid Old World nonhuman primates (NHP). The divergent Woolly Monkey HBV (WMHBV) forms another orthohepadnavirus species. The evolutionary origins of HBV are unclear. METHODS: We analyzed sera from 124 Brazilian monkeys collected during 2012-2016 for hepadnaviruses using molecular and serological tools and conducted evolutionary analyses. RESULTS: We identified a novel orthohepadnavirus species in capuchin monkeys (CMHBV)...
February 8, 2018: Journal of Hepatology
Marcus V X Senra, Way Sung, Matthew Ackerman, Samuel F Miller, Michael Lynch, Carlos Augusto G Soares
Mutations contribute to genetic variation in all living systems. Thus, precise estimates of mutation rates and spectra across a diversity of organisms are required for a full comprehension of evolution. Here, a mutation-accumulation (MA) assay was carried out on the endosymbiotic bacterium Teredinibacter turnerae. After ∼3025 generations, base-pair substitutions (BPSs) and insertion-deletion (indel) events were characterized by whole-genome sequencing analysis of 47 independent MA lines, yielding a BPSs rate of 1...
February 3, 2018: Genome Biology and Evolution
Damayanti Chakraborty, Masanaga Muto, Michael J Soares
In this protocol report, we describe a lentiviral gene delivery technique for genetic modification of the rat trophoblast cell lineage. Lentiviral packaged gene constructs can be efficiently and specifically delivered to the trophoblast cell lineage of the blastocyst. The consequences of 'gain-of-function' and 'loss-of-function' blastocyst manipulations can be evaluated with in vitro outgrowth assays or following transfer to pseudopregnant rats.
December 20, 2017: Bio-protocol
J P Nolan, J P Ornato, M J A Parr, G D Perkins, J Soar, Michael J A Parr, Gavin D Perkins
No abstract text is available yet for this article.
January 20, 2018: Resuscitation
Aldo A M Lima, Alberto M Soares, José Q S Filho, Alexandre Havt, Ila F N Lima, Noélia L Lima, Cláudia B Abreu, Francisco S Junior, Rosa M S Mota, William K-Y Pan, Christopher Troeger, Pedro H Q S Medeiros, Herlice N Veras, Mara A Prata, Ben J J McCormick, Monica McGrath, Elizabeth T Rogawski, Eric R Houpt, James A Platts-Mills, Jean Gratz, Amidou Samie, Pascal Bessong, Sudhir Babji, Gangadeep Kang, Shahida Qureshi, Sadia Shakoor, Zulfigar A Bhutta, Rashidul Haque, Tahmeed Ahmed, Estomih R Mduma, Erling Svensen, Margaret Kosek, Pablo P Yori, Ladaporn Bodhidatta, Shrestha Jasmin, Carl J Mason, Dennis Lang, Michael Gottlieb, Richard L Guerrant
OBJECTIVE: We evaluated the impact of subclinical enteroaggregative Escherichia coli (EAEC) infection alone and in combination with other pathogens in the first 6 months of life on child growth. METHODS: Nondiarrheal samples from 1684 children across 8 Multisite Birth Cohort Study, Malnutrition and Enteric Diseases (MAL-ED) sites in Asia, Africa, and Latin America were tested monthly; more than 90% of children were followed-up twice weekly for the first 6 months of life...
February 2018: Journal of Pediatric Gastroenterology and Nutrition
Damayanti Chakraborty, Regan L Scott, Michael J Soares
Oxygen is an essential nutrient for cells. Oxygen is delivered to tissues via red blood cells through the vasculature. Molecular mechanisms mediating cellular responses to low oxygen tension have been identified. Hypoxia-inducible factors (HIFs) are activated by low oxygen and promote transcriptional regulation of downstream effector genes, which lead to cellular adaptations. Controlled hypoxia exposure is utilized as an experimental tool to investigate biological processes, regulating cellular adaptations...
2018: Methods in Molecular Biology
Mariana Moysés-Oliveira, Giuliana Giannuzzi, Richard J Fish, Jill A Rosenfeld, Florence Petit, Maria de Fatima Soares, Leslie Domenici Kulikowski, Adriana Di-Battista, Malú Zamariolli, Fan Xia, Thomas Liehr, Nadezda Kosyakova, Gianna Carvalheira, Michael Parker, Eleanor G Seaby, Sarah Ennis, Rodney D Gilbert, R Tanner Hagelstrom, Maria L Cremona, Wenhui L Li, Alka Malhotra, Anjana Chandrasekhar, Denise L Perry, Ryan J Taft, Julie McCarrier, Donald G Basel, Joris Andrieux, Taiza Stumpp, Fernanda Antunes, Gustavo José Pereira, Marguerite Neerman-Arbez, Vera Ayres Meloni, Margaret Drummond-Borg, Maria Isabel Melaragno, Alexandre Reymond
We report five individuals with loss-of-function of the X-linked AMMECR1: a girl with a balanced X-autosome translocation and inactivation of the normal X-chromosome; two boys with maternally inherited and de novo nonsense variants; and two half-brothers with maternally inherited microdeletion variants. They present with short stature, cardiac and skeletal abnormalities, and hearing loss. Variants of unknown significance in AMMECR1 in four male patients from two families with partially overlapping phenotypes were previously reported...
February 2018: Human Mutation
William T Barrington, Phillip Wulfridge, Ann E Wells, Carolina Mantilla Rojas, Selene Y F Howe, Amie Perry, Kunjie Hua, Michael A Pellizzon, Kasper D Hansen, Brynn H Voy, Brian J Bennett, Daniel Pomp, Andrew P Feinberg, David W Threadgill
The incidence of diet-induced metabolic disease has soared the last half-century despite national efforts to improve health through universal dietary recommendations. Studies comparing dietary patterns of populations with health outcomes have historically provided the basis for healthy diet recommendations. However, evidence that population-level diet responses are reliable indicators of responses across individuals is lacking.  This study investigated how genetic differences influence health responses to several popular diets in mice, which are similar to humans in genetic composition and propensity to develop metabolic disease, but enable precise genetic and environmental control...
November 20, 2017: Genetics
Michael J Soares, Khursheed Iqbal, Keisuke Kozai
Hemochorial placentation is orchestrated through highly regulated temporal and spatial decisions governing the fate of trophoblast stem/progenitor cells. Trophoblast cell acquisition of specializations facilitating invasion and uterine spiral artery remodeling is a labile process, sensitive to the environment, and represents a process that is vulnerable to dysmorphogenesis in pathologic states. Hypoxia is a signal guiding placental development, and molecular mechanisms directing cellular adaptations to low oxygen tension are integral to trophoblast cell differentiation and placentation...
October 16, 2017: Birth Defects Research
Douglas Soares Oliveira, Mariana Zavarize, Luiz H G Tizei, Michael Walls, Carlos Ospina, Fernando Iikawa, Daniel Ugarte, Monica A Cotta
We report on the existence of two different regimes in one-step Ag-seeded InP nanowire growth. The vapor-liquid-solid- mechanism is present at larger In precursor flows and temperatures, ~500°C, yielding high aspect ratio and pure wurtzite InP nanowires with a semi-spherical metal particle at the thin apex. Periodic diameter oscillations can be achieved under extreme In supersaturations at this temperature range, showing the presence of a liquid catalyst. However, under lower temperatures and In precursor flows, large diameter InP nanowires with mixed wurtzite/zincblende segments are obtained, similarly to In-assisted growth...
November 3, 2017: Nanotechnology
Abel Esteves Soares, Michael Maes, Paula Godeny, Andressa Keiko Matsumoto, Décio Sabbatini Barbosa, Taysa Antonia F da Silva, Flávio Henrique M O Souza, Vinicius Daher Alvares Delfino
AIMS: Vitamin D has anti-inflammatory, anti-fibrotic effect, and may block the intrarenal renin-angiotensin system. Adequate vitamin D levels in conjunction with the use of Angiotensin-converting Enzyme Inhibitors/Angiotensin Receptor Blockers may help to slow down chronic kidney disease progression. MAIN METHODS: To study a possible beneficial effect of vitamin D supplementation in chronic kidney disease patients using angiotensin-converting enzyme inhibitors/angiotensin receptor blockers on chronic kidney disease progression we performed a clinical study involving vitamin D supplementation in patients with deficiency of this vitamin...
December 15, 2017: Life Sciences
Gabriel D Bousquet, Michael S Triantafyllou, Jean-Jacques E Slotine
Albatrosses can travel a thousand kilometres daily over the oceans. They extract their propulsive energy from horizontal wind shears with a flight strategy called dynamic soaring. While thermal soaring, exploited by birds of prey and sports gliders, consists of simply remaining in updrafts, extracting energy from horizontal winds necessitates redistributing momentum across the wind shear layer, by means of an intricate and dynamic flight manoeuvre. Dynamic soaring has been described as a sequence of half-turns connecting upwind climbs and downwind dives through the surface shear layer...
October 2017: Journal of the Royal Society, Interface
Yi Liang, Musaddeque Ahmed, Haiyang Guo, Fraser Soares, Junjie T Hua, Shuai Gao, Catherine Lu, Christine Poon, Wanting Han, Jens Langstein, Muhammad B Ekram, Brian Li, Elai Davicioni, Mandeep Takhar, Nicholas Erho, R Jeffrey Karnes, Dianne Chadwick, Theodorus van der Kwast, Paul C Boutros, Cheryl H Arrowsmith, Felix Y Feng, Anthony M Joshua, Amina Zoubeidi, Changmeng Cai, Housheng H He
Androgen receptor (AR) signaling is a key driver of prostate cancer, and androgen-deprivation therapy (ADT) is a standard treatment for patients with advanced and metastatic disease. However, patients receiving ADT eventually develop incurable castration-resistant prostate cancer (CRPC). Here, we report that the chromatin modifier LSD1, an important regulator of AR transcriptional activity, undergoes epigenetic reprogramming in CRPC. LSD1 reprogramming in this setting activated a subset of cell-cycle genes, including CENPE, a centromere binding protein and mitotic kinesin...
October 15, 2017: Cancer Research
Aldo A M Lima, Alberto M Soares, José Q S Filho, Alexandre Havt, Ila F N Lima, Noélia L Lima, Cláudia B Abreu, Francisco S Junior, Rosa M S Mota, William K-Y Pan, Christopher Troeger, Pedro H Q S Medeiros, Herlice N Vera, Mara M G Prata, Ben McCormick, Monica McGrath, Elizabeth Rogawski, Eric Houpt, James Platts-Mills, Jean Gratz, Amidou Samie, Pascal Bessong, Sudhir Babji, Gangadeep Kang, Qureshi Shahida, Sadia Shakoor, Zulfiqar Bhutta, Rashidul Haque, Tahmeed Ahmed, Estomih Mduma, Erling Svensen, Margaret Kosek, Pablo Penataro Yori, Ladaporn Bodhidatta, Shrestha Jasmin, Carl Mason, Dennis Lang, Michael Gottlieb, Richard L Guerrant
OBJECTIVE: We evaluated the impact of subclinical enteroaggregative Escherichia coli (EAEC) infection alone and in combination with other pathogens in the first six months of life on child growth. METHODS: Non-diarrheal samples from 1,684 children across eight Multisite Birth Cohort Study, Malnutrition and Enteric Diseases (MAL-ED) sites in Asia, Africa, and Latin America were tested monthly; over 90% of children were followed-up twice weekly for the first six months of life...
September 12, 2017: Journal of Pediatric Gastroenterology and Nutrition
Reza Avazmohammadi, David S Li, Thomas Leahy, Elizabeth Shih, João S Soares, Joseph H Gorman, Robert C Gorman, Michael S Sacks
Knowledge of the complete three-dimensional (3D) mechanical behavior of soft tissues is essential in understanding their pathophysiology and in developing novel therapies. Despite significant progress made in experimentation and modeling, a complete approach for the full characterization of soft tissue 3D behavior remains elusive. A major challenge is the complex architecture of soft tissues, such as myocardium, which endows them with strongly anisotropic and heterogeneous mechanical properties. Available experimental approaches for quantifying the 3D mechanical behavior of myocardium are limited to preselected planar biaxial and 3D cuboidal shear tests...
August 31, 2017: Biomechanics and Modeling in Mechanobiology
Brett L Ecker, Matthew T McMillan, Laura Maggino, Valentina Allegrini, Horacio J Asbun, Chad G Ball, Claudio Bassi, Joal D Beane, Stephen W Behrman, Adam C Berger, Mark Bloomston, Mark P Callery, John D Christein, Euan Dickson, Elijah Dixon, Jeffrey A Drebin, Carlos Fernandez-Del Castillo, William E Fisher, Zhi Ven Fong, Ericka Haverick, Robert H Hollis, Michael G House, Steven J Hughes, Nigel B Jamieson, Tara S Kent, Stacy J Kowalsky, John W Kunstman, Giuseppe Malleo, Ronald R Salem, Kevin C Soares, Vicente Valero, Ammara A Watkins, Christopher L Wolfgang, Amer H Zureikat, Charles M Vollmer
No abstract text is available yet for this article.
August 24, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
Ilan Kotlar, Aline Colonnello, María Fernanda Aguilera-González, Daiana Silva Avila, María Eduarda de Lima, Rodolfo García-Contreras, Alma Ortíz-Plata, Félix Alexandre Antunes Soares, Michael Aschner, Abel Santamaría
The tryptophan metabolite, quinolinic acid (QUIN), and the mitochondrial toxin 3-nitropropionic acid (3-NP) are two important tools for toxicological research commonly used in neurotoxic models of excitotoxicity, oxidative stress, energy depletion, and neuronal cell death in mammals. However, their toxic properties have yet to be explored in the nematode Caenorhabditis elegans (C. elegans) for the establishment of novel, simpler, complementary, alternative, and predictive neurotoxic model of mammalian neurotoxicity...
August 18, 2017: Neurotoxicity Research
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