Produção Nacional
Revisado por pares
José Luís de Barros Guimarães, Fernando Wypych, Cyro Ketzer Saul, Luiz Pereira Ramos, K. G. Satyanarayana,
This paper presents results on the characterization of corn starch by X-ray powder diffraction and thermal analysis, as well as processing and characterization of starch–banana/sugarcane bagasse fiber composites. X-ray diffraction studies revealed that the starch sample belongs to the A-type, common in cereals. Thermal analysis showed good thermal stability for making composites, while fractographic studies of 70 wt.% starch and 30% glycerol matrix revealed cracks between smooth and rough surface ...
Tópico(s): Advanced Cellulose Research Studies
2009 - Elsevier BV | Carbohydrate Polymers
Produção Nacional
Revisado por pares
Ricardo Wesley Alberca, Tatiana Mina Yendo, Yasmim Álefe Leuzzi Ramos, Iara Grigoletto Fernandes, Luana de Mendonça Oliveira, Franciane Mouradian Emidio Teixeira, Danielle Rosa Beserra, Emily Araujo de Oliveira, Sarah Cristina Gozzi-Silva, Milena Mary de Souza Andrade, Anna Cláudia Calvielli Castelo Branco, Anna Julia Pietrobon, Nátalli Zanete Pereira, Cyro Alves de Brito, Raquel Leão Orfali, Valéria Aoki, Alberto José da Silva Duarte, Gil Benard, Maria Notomi Sato,
American trypanosomiasis, also named Chagas disease (CD), is an anthropozoonosis caused by the protozoan parasite Trypanosoma cruzi. The disease affects millions of people worldwide, leading yearly to approximately 50,000 deaths. COVID-19, generated by SARS-CoV-2, can lead to lymphopenia and death. We hereby describe the first report of two patients with CD and COVID-19 coinfection, from hospitalization until patients' death.
Tópico(s): Viral Infections and Immunology Research
2020 - American Society of Tropical Medicine and Hygiene | American Journal of Tropical Medicine and Hygiene
S. Fusil, L. Piraux, Stefan Mátéfi‐Tempfli, M. Mátéfi-Tempfli, Sébastien Michotte, Cyro Ketzer Saul, L. G. Pereira, K. Bouzéhouane, Vincent Cros, C. Deranlot, J.-M. George,
A reliable method enabling electrical measurements on single nanowires prepared by electrodeposition in an alumina template is described. This technique is based on electrically controlled nanoindentation of a thin insulating resist deposited on the top face of the template filled by the nanowires. We show that this method is very flexible, allowing us to electrically address single nanowires of controlled length down to 100 nm and of desired composition. Using this approach, current densities as ...
Tópico(s): Nanowire Synthesis and Applications
2005 - IOP Publishing | Nanotechnology
Produção Nacional
Revisado por pares
Cyro Castro Júnior, Adamastor Humberto Pereira, Márcio Bastiani Pasa,
To compare through digital morphometry, the intimal thickening of the common ilíac arteries (CIA) in pigs, submitted to angioplasty and angioplasty followed by stent implantation.Angioplasty was performed in 10 pigs in both CIA, followed by a stent implantation in the left CIA. After four weeks, the aorto-iliac segment was dissected. Histologic slices where divided in three groups: left CIA in the area of the proximal (group 1) and distal (group 2) implantation site of the stent and the region of angioplasty ...
Tópico(s): Aortic aneurysm repair treatments
2006 - Sociedade Brasileira Para o Desenvolvimento da Pesquisa em Cirurgia | Acta Cirúrgica Brasileira
Produção Nacional
Revisado por pares
José Benedito Guimarães Júnior, Ana Cristina Trindade Cursino, Cyro Ketzer Saul, Maria Sierrakowski, Luiz Pereira Ramos, K. G. Satyanarayana,
Continuous efforts are being made in some countries for the recovery of crude glycerin (RG/CG) and castor oil cake (COC), the two byproducts of biodiesel production. These are expected to help, not only in addressing environmental safety, but also in adding value to those byproducts, which otherwise may go to waste. Finding ways to utilize those byproducts underlines the main objective of this study. This paper presents the evaluation of (i) COC, glycerin and banana and sugarcane fibers for moisture ...
Tópico(s): Advanced Cellulose Research Studies
2016 - Multidisciplinary Digital Publishing Institute | Materials
Produção Nacional
Revisado por pares
Esmeralci Ferreira, Denizar Vianna Araújo, Vitor Manuel Pereira Azevedo, Cyro Vargues Rodrigues, Alcides Ferreira, Camillo de Léllis Carneiro Junqueira, José Geraldo de Castro Amino, Mara Lucia Farias, Antonio Farias Neto, Denílson Campos de Albuquerque,
There is a scarcity of cost-effectiveness analyses in the national literature comparing drug-eluting stents (DES) with bare-metal stents (BMS), at late follow-up.To estimate the Incremental Cost-Effectiveness Ratio (ICER) between DES and BMS in uniarterial coronariopathy.217 patients (130 DES and 87 BMS), with 48 months of follow-up (mean = 26 months) were assessed.cost per prevented restenosis, with effectiveness being defined as the decrease in major events. The analytical model of decision was based ...
Tópico(s): Coronary Interventions and Diagnostics
2010 - Sociedade Brasileira de Cardiologia (SBC) | Arquivos Brasileiros de Cardiologia
Produção Nacional
Revisado por pares
Walmar Roncalli Pereira de Oliveira, Cyro Festa Neto, Evandro A. Rivitti,
The lack of a clinical effect of cimetidine in the treatment of epidermodysplasia verruciformis We read with great interest the article by Micali et al 1 regarding the use of cimetidine to treat flat wart-like lesions caused by epidermodysplasia verruciformis (EV).The authors reported excellent improvement of the lesions in a 16-year-old boy after three months of treatment with cimetidine (40 mg/kg per day).Furthermore, the boy showed no signs of relapse at a 6-month follow-up.We have been treating ...
Tópico(s): Genetic and rare skin diseases.
2004 - Elsevier BV | Journal of the American Academy of Dermatology
Produção Nacional
Revisado por pares
Cyro Festa Neto, Walmar Roncalli Pereira de Oliveira, Pedro V. A. Costa, Melina K. Cardoso, Paula Gurgel Barreto, Camila Malta Romano, Paulo Roberto Palma Urbano,
Abstract Background Merkel cell carcinoma ( MCC ) is a rare but aggressive primary cutaneous carcinoma with high mortality rates. The present study intends to delineate the epidemiological profile of patients with MCC seen at the Clinics Hospital of the Medical School at the University of São Paulo, Brazil, and its association with Merkel cell polyomavirus ( MCP yV). Methods This is a retrospective study. A search was performed in the hospital's medical index for all cases of MCC from January 1994 to ...
Tópico(s): Antenna Design and Analysis
2019 - Wiley | International Journal of Dermatology
Produção Nacional
Revisado por pares
Beni Grinblat, Cyro Festa Neto, José Antônio Sanches, Rolf‐Markus Szeimies, Amauri Pereira de Oliveira, Luís Torezan,
Photodermatology, Photoimmunology & PhotomedicineVolume 31, Issue 1 p. 54-56 LETTER TO THE EDITOR Daylight photodynamic therapy for actinic keratoses in São Paulo, Brazil Beni Moreinas Grinblat, Corresponding Author Beni Moreinas Grinblat Department of Dermatology, Hospital das Clinicas, University of Sao Paulo, Sao Paulo, Brazil Correspondence: Dr Beni Moreinas Grinblat, M.D., Hospital das Clinicas da Universidade de Sao Paulo – Departamento de Dermatologia, Av. Dr Eneas de Carvalho Aguiar 255, 3o ...
Tópico(s): Infectious Diseases and Mycology
2014 - Wiley | Photodermatology Photoimmunology & Photomedicine
Produção Nacional
Revisado por pares
Walmar Roncalli Pereira de Oliveira, Cyro Festa Neto, Stephen K. Tyring,
FUNDAMENTOS: A epidermodisplasia verruciforme (EV) é genodermatose rara, caracterizada por infecção disseminada por tipos específicos de vírus papiloma humano (HPV), desenvolvimento de tumores cutâneos malignos e distúrbios imunológicos. OBJETIVOS: Correlacionar aspectos clínicos em 13 doentes com EV, na tentativa de contribuir para melhor conhecimento da enfermidade. MÉTODOS:Avaliação clínica de 13 doentes com EV durante o período de três anos. O diagnóstico clínico foi confirmado pelo exame histopatológico ...
Tópico(s): Cancer and Skin Lesions
2002 - Elsevier BV | Anais Brasileiros de Dermatologia
Produção Nacional
Revisado por pares
Márcio Bastiani Pasa, Adamastor Humberto Pereira, Cyro Castro Júnior,
To evaluate intimal thickening secondary to stent placement or to insertion of the delivery system without stent placement in pig carotid arteries.Stents were placed in the right common carotid arteries of 7 pigs, and 7 other control pigs underwent only insertion of the delivery system without stent placement. Uninjured contralateral common carotid arteries of the two groups were also used as controls. Samples of arterial tissue, obtained from the area adjacent to the distal segment of the stent ...
Tópico(s): Acute Ischemic Stroke Management
2008 - Sociedade Brasileira Para o Desenvolvimento da Pesquisa em Cirurgia | Acta Cirúrgica Brasileira
Produção Nacional
Revisado por pares
Walmar Roncalli Pereira de Oliveira, Solange Carrasco, Cyro Festa Neto, Peter L. Rady, Stephen K. Tyring,
Epidermodysplasia verruciformis (EV) is a rare disease that usually begins in childhood and is characterized by a generalized infection by human papilloma virus (HPV), frequent associations with cutaneous carcinomas, and abnormalities of cell-mediated immunity (CMI). We studied nonspecific CMI in 13 patients with EV by bacterial skin tests, allergic reactions to dinitrochlorobenzene (DNCB), measurement of responses to phytohemagglutinin (PHA), and quantification of T lymphocytes and T lymphocytes subsets ...
Tópico(s): Immunotherapy and Immune Responses
2003 - Wiley | The Journal of Dermatology
Produção Nacional
Revisado por pares
Peter L. Rady, Walmar Roncalli Pereira de Oliveira, Qin He, Cyro Festa, Evandro A. Rivitti, Stephen B. Tucker, Stephen K. Tyring,
Conflicts of interest: none declared. Sir, Persistent infection with a characteristic group of human papilloma viruses in epidermodysplasia verruciformis (EV‐HPVs) is due to an uncharacterized immunogenetic deficiency resulting in lack of clearance of the EV‐HPV‐infected keratinocytes.1, 2 Recently two susceptibility loci were identified. The first susceptibility locus (EV1) for EV was mapped to a region of chromosome 17 and the second susceptibility locus for EV was mapped to chromosome 2 (EV2).3 ...
Tópico(s): Polyomavirus and related diseases
2007 - Oxford University Press | British Journal of Dermatology
Produção Nacional
Revisado por pares
Iara Grigoletto Fernandes, Cyro Alves de Brito, Vitor Manoel Silva dos Reis, Maria Notomi Sato, Nátalli Zanete Pereira,
The phenomenon of oxidative stress, characterized as an imbalance in the production of reactive oxygen species and antioxidant responses, is a well-known inflammatory mechanism and constitutes an important cellular process. The relationship of viral infections, reactive species production, oxidative stress, and the antiviral response is relevant. Therefore, the aim of this review is to report studies showing how reactive oxygen species may positively or negatively affect the pathophysiology of viral ...
Tópico(s): Long-Term Effects of COVID-19
2020 - Hindawi Publishing Corporation | Oxidative Medicine and Cellular Longevity
Produção Nacional
Revisado por pares
Pedro V. A. Costa, Patrícia Sayuri Ishiy, Paulo Roberto Palma Urbano, Camila Malta Romano, Stephen K. Tyring, Walmar Roncalli Pereira de Oliveira, Cyro Festa Neto,
Polyomaviruses (PyVs) were initially described in animals. They have also been detected in humans with some evidence that could play a role in skin carcinogenesis.This study aimed to verify the presence of PyVs in different skin tumour samples and to make clinical correlations with patients' epidemiological data from Clinics Hospital of Medical School of University of São Paulo, Brazil.This is a cross-sectional study. A random selection was performed of 120 patients with histopathological exams of ...
Tópico(s): Full-Duplex Wireless Communications
2021 - Karger Publishers | Intervirology
Produção Nacional
Revisado por pares
Iclea Rocha Gama, Euclides Maurício Trindade Filho, Suzana Lima de Oliveira, Nassib Bezerra Bueno, Isabelle Tenório Melo, Cyro Rego Cabral-Junior, Elenita Marinho Albuquerque Barros, Jaqueline A. Galvão, Wanessa dos Santos Pereira, Raphaela Costa Ferreira, Bruna R. Domingos, Terezinha da Rocha Ataíde,
Tópico(s): Biochemical Analysis and Sensing Techniques
2014 - Springer Science+Business Media | Metabolic Brain Disease
Produção Nacional
Revisado por pares
Walmar Roncalli Pereira de Oliveira, Mírian Nacagami Sotto, Cyro Festa, Peter L. Rady, Stephen K. Tyring,
To the Editor: Epidermodysplasia verruciformis (EV) is an inherited skin disorder characterized by disseminated infection with a specific group of human papillomaviruses (EV-HPVs) and the development of both basal cell carcinomas (BCCs) and squamous cell carcinomas (SCCs).1
Tópico(s): Tumors and Oncological Cases
2010 - Elsevier BV | Journal of the American Academy of Dermatology
Produção Nacional
Revisado por pares
Cyro Castro Júnior, Adamastor Humberto Pereira,
Anti-angiogenic regulators may have therapeutic implications for onset and progression of atherosclerosis.To demonstrate histological changes secondary to the use of bevacizumab in the aorta of pigs after interruption of flow in the vasa vasorum.Twelve pigs were divided into two groups. The intercostal arteries of the descending aorta were dissected and ligated and wrapped with a polyvinyl chloride membrane. The treatment group received an intravenous dose of bevacizumab. After 15 days, the animals ...
Tópico(s): Venous Thromboembolism Diagnosis and Management
2019 - Sociedade Brasileira de Angiologia e de Cirurgia Vascular (SBACV) | Jornal Vascular Brasileiro
Produção Nacional
Revisado por pares
Walmar Roncalli Pereira de Oliveira, Qin He, Peter L. Rady, Thomas K. Hughes, Cyro Festa Neto, Evandro A. Rivitti, Stephen K. Tyring,
Background: Epidermodysplasia verruciformis is a rare genetic disorder characterized by development of lesions associated with HPV#5 or HPV#8 in early childhood; malignant transformation occurs in approximately half of individuals during adulthood. Objective: Our goal was to study the presence and spectrum of EV-HPV types in Brazilian EV patients, a population that had never been studied in this regard. Patients and MethodsForty-one biopsies from different lesions (benign and skin tumors) and one ...
Tópico(s): Nonmelanoma Skin Cancer Studies
2004 - SAGE Publishing | Journal of Cutaneous Medicine and Surgery
Produção Nacional
Revisado por pares
Manuela Silva Libânio Tosto, Stefanie Alvarenga Santos, Roberto da Costa Pinto Filho, Thomaz Cyro Guimarães de Carvalho Rodrigues, Isis Miranda Carvalho Nicory, Gleidson Giordano Pinto de Carvalho, Rodrigo Freitas Bittencourt, Maria Consuêlo Caribé Ayres, Taiala Cristina de Jesus Pereira,
This Research aimed to evaluate the metabolic status and behavior changes during the transition period in dairy goats from three breeds, under tropical conditions. Thirty multiparous female goats were kept in pens, distributed randomly by breeds. Infrared cameras were fitted in the pens to monitor the animals, and its activities were recorded. Goats displayed varied idle, standing, walking, and feeding behaviors at kidding day (P < 0.10) when compared with the days after and before. Agnostic interactions ...
Tópico(s): Genetic and phenotypic traits in livestock
2021 - Elsevier BV | Veterinary and Animal Science
Produção Nacional
Revisado por pares
Camila Fátima Biancardi Gavioli, Cyro Festa Neto, Stephen K. Tyring, Lana Luiza da Cruz Silva, Walmar Roncalli Pereira de Oliveira,
The oncogenic role of high-risk HPV in anogenital, head and neck, and cervical cancer is well recognized, but not in skin cancer in the general population. Some authors have demonstrated their appearance mainly on the hands and feet, particularly in the area of the nail bed, which could be due to contamination with HPV types from anogenital regions. Here, we describe a case of genital HPV associated with SCC on the nose tip in an immunocompetent young man, which was confirmed by histopathological ...
Tópico(s): Nonmelanoma Skin Cancer Studies
2018 - Elsevier BV | Anais Brasileiros de Dermatologia
Produção Nacional
Revisado por pares
Walmar Roncalli Pereira de Oliveira, Peter L. Rady, James J. Grady, Thomas K. Hughes, Cyro Festa Neto, Evandro A. Rivitti, Stephen K. Tyring,
Epidermodysplasia verruciformis (EV) is a rare genetic disorder characterized by development of lesions associated with human papillomavirus in early childhood and malignant transformation in approximately half of individuals during adulthood. The persistence of human papillomavirus infection in EV is thought to be a result of an immunogenetic defect, which determines the generation of several cytokines capable of down-regulating cell-mediated immunity.We sought to study the prevalence of interleukin ...
Tópico(s): Poxvirus research and outbreaks
2003 - Elsevier BV | Journal of the American Academy of Dermatology
Produção Nacional
Revisado por pares
Mônica JZ Pereira, Nelson Sidnei Massola Júnior, A. A. B. Sussel, Fernando César Sala, Cyro Paulino da Costa, L. S. Boiteux,
A antracnose, causada por um complexo de espécies de Colletotrichum, é uma das doenças mais importantes de Capsicum em regiões tropicais e subtropicais. Fontes de resistência têm sido identificadas em programas de melhoramento conduzidos em diferentes continentes. No entanto, ainda são restritas as informações sobre a abrangência e estabilidade desta resistência aos diferentes isolados de espécies de Colletotrichum que compõem o complexo causador da antracnose em Capsicum. Foram avaliadas as reações ...
Tópico(s): Plant Pathogenic Bacteria Studies
2011 - Associação Brasileira de Olericultura | Horticultura Brasileira
Produção Nacional
Revisado por pares
Walmar Roncalli Pereira de Oliveira, Peter L. Rady, James J. Grady, Thomas K. Hughes, Cyro Festa Neto, Evandro A. Rivitti, Stephen K. Tyring,
Abstract Background The presence of arginine at codon 72 in p53 protein is proposed to be a genetic risk factor in human papillomavirus (HPV)‐related carcinogenesis. Objective To study the prevalence of p53 polymorphism at codon 72 in skin biopsies of epidermodysplasia verruciformis (EV) patients compared to DNA samples from healthy individuals. Patients and methods DNA samples extracted from normal skin and tumor biopsies of 22 Brazilian patients with EV and blood samples from 27 healthy Brazilian ...
Tópico(s): Virus-based gene therapy research
2004 - Wiley | International Journal of Dermatology
Produção Nacional
Revisado por pares
Thomaz Cyro Guimarães de Carvalho Rodrigues, Stefanie Alvarenga Santos, Luís Gabriel Alves Cirne, Douglas dos Santos Pina, Henry Daniel Ruiz Alba, Maria Leonor Garcia Melo Lopes de Araújo, Willian Pereira Silva, Camila de Oliveira Nascimento, C. S. Rodrigues, Manuela Silva Libânio Tosto, Gleidson Giordano Pinto de Carvalho,
Tópico(s): Genetic and phenotypic traits in livestock
2021 - Springer Science+Business Media | Tropical Animal Health and Production
Produção Nacional
Revisado por pares
Cyro von Zuben de Valega Negrão, Natália Neto Pereira Cerize, Amauri da Silva Justo-Júnior, Raquel Bester Liszbinski, Giovanna Pastore Meneguetti, Larissa Araujo, Silvana A. Rocco, Kaliandra de Almeida Gonçalves, D.R. Cornejo, Patrícia Léo, Caio José Perecin, Douglas Adamóski, Sandra Martha Gomes Dias,
To synthesize HER2 aptamer-conjugated iron oxide nanoparticles with a coating of poly(2-(dimethylamino) ethyl methacrylate)-poly(2-methacryloyloxyethylphosphorylcholine) block copolymer (IONPPPs).
Tópico(s): Nanopore and Nanochannel Transport Studies
2024 - Future Medicine | Nanomedicine
Camilla Fruchtengarten, Renata Moura Pimenta, Ana Clara Fernandes de Souza, Maria Augusta Manzoli Côvre, Marcela Soares Storch, Gabriela Pinto Bernardes, Cyro Morais Pereira, Marina Magalhães Schichman, Eduarda Garcias Lopes, Giullia Guarnieri Nicchio, Anderson da Silva Netto, Tadeu de Sousa,
Autistic Spectrum Disorder (ASD) is a neurodevelopmental disorder characterized by an atypical development whose main changes are related to impaired communication and social interaction, which, in turn, are associated with restrictive and repetitive patterns of behavior.Because it is a disorder for which there is no cure, several therapeutic approaches are used to assist in the development of children's social and communication skills, in addition to minimizing repetitive and stereotyped behaviors. ...
Tópico(s): Children's Physical and Motor Development
2023 - | International Journal of Health Science
Produção Nacional
Revisado por pares
Willams Henrique da Costa Maynart, Maria Cícera dos Santos de Albuquerque, Regina Célia Sales Santos Veríssimo, Patrícia de Albuquerque Sarmento, Jadelson Júnior da Silva, Christine de Sousa Gomes Costa, Jéssica Diodino da Silva Santos, Crislane de Oliveira Pontes, Marcela Cristina dos Santos Barros, Flaviane Maria Pereira Belo, Christefany Régia Braz Costa, Cyro Rêgo Cabral,
Abstract Objective: To evaluate the use of biofeedback intervention in the levels of depression. The main hypothesis tested if the use of biofeedback improves depression levels compared to the control group. Methods: A randomised clinical trial. The final sample was composed of 36 participants (18 in the experimental group, receiving 6 training, once a week, with biofeedback; and 18 in the control group, who received conventional treatment in the service).Outcome measures were assessed in two stages: ...
Tópico(s): Attention Deficit Hyperactivity Disorder
2021 - Cambridge University Press | Acta Neuropsychiatrica
Produção Nacional
Revisado por pares
Walmar Roncalli Pereira de Oliveira, Maria Claudia Carvas Passarelli Tirico, Anaisa A V de Souza, Felipe R. Codarin, Lana L. C. Silva, Cyro Festa Neto,
Skin lesions are very common among organ transplant recipients (OTR), particularly infections and tumors, because of the immunosuppressive state these patients are put in.177 OTR were examined. Skin lesions were categorized into neoplastic, infectious, and inflammatory diseases.The mean age of OTR was 52 years, the mean age at transplantation was 42.7 years, and kidney was the most common organ transplanted (72%). Skin lesions were found in 147 patients (83%). Cutaneous infections were seen in 106 ...
Tópico(s): Cancer and Skin Lesions
2018 - Wiley | International Journal of Dermatology
Produção Nacional
Revisado por pares
Walmar Roncalli Pereira de Oliveira, Maria Fernanda Longo Borsato, Maria Luiza Ducati Dabronzo, Cyro Festa Neto, Larissa Aragão Rocha, Ricardo Spina Nunes,
Phaeohyphomycosis is an infection caused by a filamentous fungus that contains pigment melanin in its cell wall. We report two cases caused by Exophiala sp. emphasizing the clinical variability of the disease, as well as diagnostic and therapeutic difficulties of this opportunistic infection in immunosuppressed patients (kidney transplant).
Tópico(s): Antifungal resistance and susceptibility
2016 - Elsevier BV | Anais Brasileiros de Dermatologia