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https://www.readbyqxmd.com/read/29668018/how-strong-was-the-bottleneck-associated-to-the-peopling-of-the-americas-new-insights-from-multilocus-sequence-data
#1
Nelson J R Fagundes, Alice Tagliani-Ribeiro, Rohina Rubicz, Larissa Tarskaia, Michael H Crawford, Francisco M Salzano, Sandro L Bonatto
In spite of many genetic studies that contributed for a deep knowledge about the peopling of the Americas, no consensus has emerged about important parameters such as the effective size of the Native Americans founder population. Previous estimates based on genomic datasets may have been biased by the use of admixed individuals from Latino populations, while other recent studies using samples from Native American individuals relied on approximated analytical approaches. In this study we use resequencing data for nine independent regions in a set of Native American and Siberian individuals and a full-likelihood approach based on isolation-with-migration scenarios accounting for recent flow between Asian and Native American populations...
2018: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/29668011/effective-population-size-and-the-genetic-consequences-of-commercial-whaling-on-the-humpback-whales-megaptera-novaeangliae-from-southwestern-atlantic-ocean
#2
Ana Lúcia Cypriano-Souza, Tiago Ferraz da Silva, Márcia H Engel, Sandro L Bonatto
Genotypes of 10 microsatellite loci of 420 humpback whales from the Southwestern Atlantic Ocean population were used to estimate for the first time its contemporary effective (Ne) and census (Nc) population sizes and to test the genetic effect of commercial whaling. The results are in agreement with our previous studies that found high genetic diversity for this breeding population. Using an approximate Bayesian computation approach, the scenario of constant Ne was significantly supported over scenarios with moderate to strong size changes during the commercial whaling period...
2018: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/29556740/horizontal-gene-transfer-building-prokaryote-genomes-genes-related-to-exchange-between-cell-and-environment-are-frequently-transferred
#3
Apuã C M Paquola, Huma Asif, Carlos Alberto de Bragança Pereira, Bruno César Feltes, Diego Bonatto, Wanessa Cristina Lima, Carlos Frederico Martins Menck
Horizontal gene transfer (HGT) has a major impact on the evolution of prokaryotic genomes, as it allows genes evolved in different contexts to be combined in a single genome, greatly enhancing the ways evolving organisms can explore the gene content space and adapt to the environment. A systematic analysis of HGT in a large number of genomes is of key importance in understanding the impact of HGT in the evolution of prokaryotes. We developed a method for the detection of genes that potentially originated by HGT based on the comparison of BLAST scores between homologous genes to 16S rRNA-based phylogenetic distances between the involved organisms...
March 19, 2018: Journal of Molecular Evolution
https://www.readbyqxmd.com/read/29433287/experimental-study-of-physical-and-rheological-properties-of-grape-juice-using-different-temperatures-and-concentrations-part-ii-merlot
#4
Maurício Bonatto Machado de Castilhos, Lilian Fachin Leonardo Betiol, Gisandro Reis de Carvalho, Javier Telis-Romero
The effect of the temperature and concentration on rheological behavior of Merlot juice concentrates was assessed using a rheometer over a wide range of temperature (1-66°C) and concentrations (13.6-45.0Brix) at shear rates of 0.84-212.1 1/s. The Ostwald-De Waele was the best rheological model fitted the data (R2=0.99967 and relative error=7.99%). The consistency levels were significantly reduced with the increase of temperature and increased with the increase of the concentrations, ranging from 0.1766 (13...
March 2018: Food Research International
https://www.readbyqxmd.com/read/29348077/effects-of-cordyceps-sinensis-on-macrophage-function-in-high-fat-diet-fed-rats-and-its-anti-proliferative-effects-on-imr-32-human-neuroblastoma-cells
#5
Leandro Freire Dos Santos, Rosalia Rubel, Sandro Jose Ribeiro Bonatto, Adriana Aya Yamaguchi, Maria Fernanda Torres, Vanete Thomaz Soccol, Andre Luís Lopes da Silva, Carlos Ricardo Soccol
Macrophages have been considered an elusive yet emerging therapeutic target in tumor development since they are an important component in tumor microenvironment. The purpose of the present study was to evaluate the effect of C. sinensis on macrophage function (a component of tumor microenvironment which can alter the virulence of cancer) in high-fat diet fed rats. IMR-32 human neuroblastoma cell cytotoxicity was also investigated. The following parameters were observed to evaluate macrophage function: superoxide anion, hydrogen peroxide, nitric oxide, lysosomal volume and phagocytic capacity...
January 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29347097/extreme-and-superextreme-events-in-a-loss-modulated-co_-2-laser-nonlinear-resonance-route-and-precursors
#6
Cristian Bonatto, Antonio Endler
We investigate the occurrence of extreme and rare events, i.e., giant and rare light pulses, in a periodically modulated CO_{2} laser model. Due to nonlinear resonant processes, we show a scenario of interaction between chaotic bands of different orders, which may lead to the formation of extreme and rare events. We identify a crisis line in the modulation parameter space, and we show that, when the modulation amplitude increases, remaining in the vicinity of the crisis, some statistical properties of the laser pulses, such as the average and dispersion of amplitudes, do not change much, whereas the amplitude of extreme events grows enormously, giving rise to extreme events with much larger deviations than usually reported, with a significant probability of occurrence, i...
July 2017: Physical Review. E
https://www.readbyqxmd.com/read/29246610/clinical-and-molecular-characterization-of-hereditary-spastic-paraplegias-a-next-generation-sequencing-panel-approach
#7
Daniela Burguez, Márcia Polese-Bonatto, Laís Alves Jacinto Scudeiro, Ingemar Björkhem, Ludger Schöls, Laura Bannach Jardim, Ursula Matte, Maria Luiza Saraiva-Pereira, Marina Siebert, Jonas Alex Morales Saute
BACKGROUND: Molecular diagnosis of hereditary spastic paraplegias (HSP) is a difficult task due to great clinical and genetic heterogeneity. We aimed to characterize clinical and molecular findings of HSP families from Rio Grande do Sul, Brazil; and to evaluate the diagnostic yield of a next-generation sequencing (NGS) panel with twelve HSP-related genes. METHODS: A consecutive series of HSP index cases with familial recurrence of spasticity, consanguinity or thin corpus callosum (TCC) were included in this cross-sectional study...
December 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29236845/comparison-between-conventional-protective-mechanical-ventilation-and-high-frequency-oscillatory-ventilation-associated-with-the-prone-position
#8
José Roberto Fioretto, Susiane Oliveira Klefens, Rafaelle Fernandes Pires, Cilmery Suemi Kurokawa, Mario Ferreira Carpi, Rossano César Bonatto, Marcos Aurélio Moraes, Carlos Fernando Ronchi
OBJECTIVE: To compare the effects of high-frequency oscillatory ventilation and conventional protective mechanical ventilation associated with the prone position on oxygenation, histology and pulmonary oxidative damage in an experimental model of acute lung injury. METHODS: Forty-five rabbits with tracheostomy and vascular access were underwent mechanical ventilation. Acute lung injury was induced by tracheal infusion of warm saline. Three experimental groups were formed: healthy animals + conventional protective mechanical ventilation, supine position (Control Group; n = 15); animals with acute lung injury + conventional protective mechanical ventilation, prone position (CMVG; n = 15); and animals with acute lung injury + high-frequency oscillatory ventilation, prone position (HFOG; n = 15)...
December 7, 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29222525/conserved-gene-microsynteny-unveils-functional-interaction-between-protein-disulfide-isomerase-and-rho-guanine-dissociation-inhibitor-families
#9
Ana I S Moretti, Jessyca C Pavanelli, Patrícia Nolasco, Matthias S Leisegang, Leonardo Y Tanaka, Carolina G Fernandes, João Wosniak, Daniela Kajihara, Matheus H Dias, Denise C Fernandes, Hanjoong Jo, Ngoc-Vinh Tran, Ingo Ebersberger, Ralf P Brandes, Diego Bonatto, Francisco R M Laurindo
Protein disulfide isomerases (PDIs) support endoplasmic reticulum redox protein folding and cell-surface thiol-redox control of thrombosis and vascular remodeling. The family prototype PDIA1 regulates NADPH oxidase signaling and cytoskeleton organization, however the related underlying mechanisms are unclear. Here we show that genes encoding human PDIA1 and its two paralogs PDIA8 and PDIA2 are each flanked by genes encoding Rho guanine-dissociation inhibitors (GDI), known regulators of RhoGTPases/cytoskeleton...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29197565/molecular-and-biochemical-biomarkers-for-diagnosis-and-therapy-monitorization-of-niemann-pick-type-c-patients
#10
Tatiane Grazieli Hammerschmidt, Graziela de Oliveira Schmitt Ribas, Maria Luiza Saraiva-Pereira, Márcia Polese Bonatto, Rejane Gus Kessler, Fernanda Timm Seabra Souza, Franciele Trapp, Kristiane Michelin-Tirelli, Maira Graeff Burin, Roberto Giugliani, Carmen Regla Vargas
BACKGROUND: Niemann-Pick type C (NP-C), one of 50 inherited lysosomal storage disorders, is caused by NPC protein impairment that leads to unesterified cholesterol accumulation in late endosomal/lysosomal compartments. The clinical manifestations of NP-C include hepatosplenomegaly, neurological and psychiatric symptoms. Current diagnosis for NP-C is based on observation of the accumulated cholesterol in fibroblasts of affected individuals, using an invasive and time expensive test, called Filipin staining...
November 29, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28873742/experimental-study-of-physical-and-rheological-properties-of-grape-juice-using-different-temperatures-and-concentrations-part-i-cabernet-sauvignon
#11
Maurício Bonatto Machado de Castilhos, Lilian Fachin Leonardo Betiol, Gisandro Reis de Carvalho, Javier Telis-Romero
The effect of the temperature and concentration on rheological behavior of Cabernet Sauvignon juice concentrates was assessed using a rheometer over a wide range of temperature (1-66°C) and concentrations (13.6-45.0Brix) at shear rates of 0.84-212.1 1/s. The Ostwald-De Waele was the best rheological model fitted the data (R(2)=0.99957 and relative error=7.77%). The Cabernet Sauvignon juice concentrates presented a non-Newtonian pseudoplastic behavior (n<1). The consistency levels were significantly reduced with the increase of temperature and increased with the increase of the concentrations...
October 2017: Food Research International
https://www.readbyqxmd.com/read/28654647/ancient-female-philopatry-asymmetric-male-gene-flow-and-synchronous-population-expansion-support-the-influence-of-climatic-oscillations-on-the-evolution-of-south-american-sea-lion-otaria-flavescens
#12
Larissa Rosa de Oliveira, Marcelo C M Gehara, Lúcia D Fraga, Fernando Lopes, Juan Ignacio Túnez, Marcelo H Cassini, Patricia Majluf, Susana Cárdenas-Alayza, Héctor J Pavés, Enrique Alberto Crespo, Nestor García, Rocío Loizaga de Castro, A Rus Hoelzel, Maritza Sepúlveda, Carlos Olavarría, Victor Hugo Valiati, Renato Quiñones, Maria Jose Pérez-Alvarez, Paulo Henrique Ott, Sandro L Bonatto
The South American sea lion (Otaria flavescens) is widely distributed along the southern Atlantic and Pacific coasts of South America with a history of significant commercial exploitation. We aimed to evaluate the population genetic structure and the evolutionary history of South American sea lion along its distribution by analyses of mitochondrial DNA (mtDNA) and 10 nuclear microsatellites loci. We analyzed 147 sequences of mtDNA control region and genotyped 111 individuals of South American sea lion for 10 microsatellite loci, representing six populations (Peru, Northern Chile, Southern Chile, Uruguay (Brazil), Argentina and Falkland (Malvinas) Islands) and covering the entire distribution of the species...
2017: PloS One
https://www.readbyqxmd.com/read/28640659/phlda1-pleckstrin-homology-like-domain-family-a-member-1-knockdown-promotes-migration-and-invasion-of-mcf10a-breast-epithelial-cells
#13
Naieli Bonatto, Maria José Carlini, Simone Aparecida de Bessa Garcia, Maria Aparecida Nagai
PHLDA1 (pleckstrin homology-like domain, family A, member 1) is a multifunctional protein that plays distinct roles in several biological processes including cell death and therefore its altered expression has been identified in different types of cancer. Progressively loss of PHLDA1 was found in primary and metastatic melanoma while its overexpression was reported in intestinal and pancreatic tumors. Previous work from our group showed that negative expression of PHLDA1 protein was a strong predictor of poor prognosis for breast cancer disease...
June 22, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28562344/accumulation-of-prohibitin-is-a-common-cellular-response-to-different-stressing-stimuli-and-protects-melanoma-cells-from-er-stress-and-chemotherapy-induced-cell-death
#14
Tharcisio Citrangulo Tortelli, Lyris Martins Franco de Godoy, Gustavo Antonio de Souza, Diego Bonatto, Andreia Hanada Otake, Renata de Freitas Saito, Jose Cesar Rosa, Lewis Joel Greene, Roger Chammas
Melanoma is responsible for most deaths among skin cancers and conventional and palliative care chemotherapy are limited due to the development of chemoresistance. We used proteomic analysis to identify cellular responses that lead to chemoresistance of human melanoma cell lines to cisplatin. A systems approach to the proteomic data indicated the participation of specific cellular processes such as oxidative phosphorylation, mitochondrial organization and homeostasis, as well as the unfolded protein response (UPR) to be required for the survival of cells treated with cisplatin...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28545114/different-adaptation-strategies-of-two-citrus-scion-rootstock-combinations-in-response-to-drought-stress
#15
Joadson Dutra de Souza, Edson Mario de Andrade Silva, Mauricio Antônio Coelho Filho, Raphaël Morillon, Diego Bonatto, Fabienne Micheli, Abelmon da Silva Gesteira
Scion/rootstock interaction is important for plant development and for breeding programs. In this context, polyploid rootstocks presented several advantages, mainly in relation to biotic and abiotic stresses. Here we analyzed the response to drought of two different scion/rootstock combinations presenting different polyploidy: the diploid (2x) and autotetraploid (4x) Rangpur lime (Citrus limonia, Osbeck) rootstocks grafted with 2x Valencia Delta sweet orange (Citrus sinensis) scions, named V/2xRL and V/4xRL, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28340499/pagan-symbols-associated-with-the-female-anatomy-in-the-medici-chapel-by-michelangelo-buonarroti
#16
Deivis De Campos, Andrea Oxley Da Rocha, Rodrigo De Oliveira Lemos, Tais Malysz, João Antonio Bonatto-Costa, Geraldo Pereira Jotz, Lino Pinto De Oliveira Junior, Miriam Da Costa Oliveira
Numerous studies have shown that many works of art from the Renaissance period contain hidden symbols and codes that could have religious, mathematical and/or pagan significance and even anatomical allusions. In this context, the present manuscript offers new evidence that the great genius of anatomy, Michelangelo Buonarroti (1475-1564), included pagan symbols associated with female anatomy in the funerary monuments found in the Sagrestia Nuova/Medici Chapel (1519-1533) in Florence, Italy. The interpretation of the symbols provided in this study will interest those with a passion for the history of anatomy...
March 24, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28199443/secondary-structure-of-nrdna-internal-transcribed-spacers-as-a-useful-tool-to-align-highly-divergent-species-in-phylogenetic-studies
#17
Giovanna C Giudicelli, Geraldo Mäder, Gustavo A Silva-Arias, Priscilla M Zamberlan, Sandro L Bonatto, Loreta B Freitas
Recently, it has been suggested that internal transcribed spacer (ITS) sequences are under selective constraints to preserve their secondary structure. Here, we investigate the patterns of the ITS nucleotide and secondary structure conservation across the Passiflora L. genus to evaluate the potential use of secondary structure data as a helpful tool for the alignment in taxonomically complex genera. Considering the frequent use of ITS, this study also presents a perspective on future analyses in other plant groups...
2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28174095/anti-mitotic-agents-are-they-emerging-molecules-for-cancer-treatment
#18
REVIEW
Larissa Siqueira Penna, João Antonio Pêgas Henriques, Diego Bonatto
Mutations in cancer cells frequently result in cell cycle alterations that lead to unrestricted growth compared to normal cells. Considering this phenomenon, many drugs have been developed to inhibit different cell-cycle phases. Mitotic phase targeting disturbs mitosis in tumor cells, triggers the spindle assembly checkpoint and frequently results in cell death. The first anti-mitotics to enter clinical trials aimed to target tubulin. Although these drugs improved the treatment of certain cancers, and many anti-microtubule compounds are already approved for clinical use, severe adverse events such as neuropathies were observed...
May 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28060024/stress-distribution-in-an-implant-supported-mandibular-complete-denture-using-different-cantilever-lengths-and-occlusal-coating-materials
#19
Rodrigo Antonio de Medeiros, Marcelo Coelho Goiato, Aldiéris Alves Pesqueira, Aljomar José Vechiato Filho, Liliane da Rocha Bonatto, Daniela Micheline Dos Santos
PURPOSE: The aim of this study was to assess stress distribution in the bone-implant interface of a mandibular implant-supported prosthesis with different cantilever lengths, aesthetic coating materials, and implant abutments. MATERIALS AND METHODS: A photoelastic model of an edentulous mandible, containing 5 external hexagon implants, was constructed. Experimental models were divided into 6 groups: group 1-UCLA component and metal bar; group 2-UCLA component and acrylic resin coating; group 3-UCLA component and porcelain coating; group 4-abutment and metal bar; group 5-abutment and acrylic resin coating; and group 6-abutment and porcelain coating...
February 2017: Implant Dentistry
https://www.readbyqxmd.com/read/27987770/surface-characterization-of-polymers-used-in-fabrication-of-interim-prostheses-after-treatment-with-photopolymerized-glaze
#20
Daniela Micheline Dos Santos, Betina Chiarelo Commar, Liliane da Rocha Bonatto, Emily Vivianne Freitas da Silva, Mariana Vilela Sônego, Elidiane Cipriano Rangel, Aldieris Alves Pesqueira, Marcelo Coelho Goiato
The material used for interim prostheses fabrication must present excellent physical properties for greater longevity in the face of environmental conditions, which can occur in the oral cavity. The purpose of this study was to evaluate the effect of a photopolymerized glaze on the physical and mechanical properties of polymers used for the fabrication of interim prostheses, before and after thermocycling and immersion in staining solutions. One hundred samples of composite and acrylic resins were fabricated: Dencor chemically activated acrylic resin (CAAR) (n=20) and heat-polymerized acrylic resin (HPAR) (n=20), Charisma (n=20), Structur (n=20), and Protemp (n=20)...
February 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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