Paula Friedman, Emilia Cohen Sabban, Carolina Marcucci, Rosario Peralta, Horacio Cabo,
Lichen planus (LP) is a papulosquamous dermatosis that involves the skin, scalp, nails and mucous membranes. Although its pathogenesis is still unknown, there is evidence that an imbalance of immunologic cellular reactivity plays an important role. Histopathologic examination reveals characteristic interface dermatitis. Dermoscopy is a non-invasive tool, useful in the assessment of inflammatory dermatoses, such as lichen planus. In this paper we describe the dermoscopic findings of different variants ...
Tópico(s): Autoimmune Bullous Skin Diseases
2015 - | Dermatology Practical & Conceptual
María de los Ángeles Pando, Mirna Biglione, M Fernández Toscano, Rey J, Kevin L. Russell, Mónica Negrete, Silvia María Gianni, Liliana Martínez-Peralta, Horacio Salomón, Sergio Sosa‐Estáni, Silvia M. Montano, James G. Olson, José L. Sánchez, Jean K. Carr, María Mercedes Ávila,
Infections with hepatitis C virus, (HCV), hepatitis B virus (HBV), and human T lymphotropic type I/II (HTLV-I/II) virus are commonly found in patients infected with human immunodeficiency virus type 1 (HIV-1). We conducted a seroepidemiologic study among 174 HIV-positive heterosexuals in Buenos Aires, Argentina in 1999. Evidence of exposure to HCV, HBV, and HTLV-I/II was found in 32%, 17%, and 5%, respectively. A higher prevalence of HBV infection was observed among males (33%) compared with females ( ...
Tópico(s): Hepatitis B Virus Studies
2004 - American Society of Tropical Medicine and Hygiene | American Journal of Tropical Medicine and Hygiene
María de los Ángeles Pando, Sergio Maulen, Mercedes Weissenbacher, Rubén Marone, Ricardo Duranti, Liliana Martínez Peralta, Horacio Salomón, Kevin L. Russell, Mónica Negrete, Sérgio Sosa Estani, Silvia M. Montano, José Luis Sánchez‐Ramos, María Mercedes Ávila,
Objective To determine human immunodeficiency virus (HIV) seroprevalence in a sample of men who have sex with men (MSM) in Buenos Aires City and to identify risk factors associated with HIV type 1 infection.
Tópico(s): Sex work and related issues
2003 - Oxford University Press | International Journal of Epidemiology
María Mercedes Ávila, María A. Pando, Gladys Carrión, Liliana Martínez Peralta, Horacio Salomón, Manuel Gómez Carrillo, José L. Sánchez, Sergio Maulen, Jesse Hierholzer, Mark Marinello, Mónica Negrete, Kevin L. Russell, Jean K. Carr,
Summary: This study determined the risk behaviors and viral subtypes of HIV-1 found in 134 heterosexual HIV-seroprevalent maternity patients, 41 of their sexual partners (men who have sex with women [MSW]), and 95 homosexual men (men who have sex with men [MSM]) from Buenos Aires, Argentina. Peripheral blood mononuclear cells (PBMCs) were purified from blood and used for DNA extraction, amplification, and genotyping by the envelope heteroduplex mobility assay (env HMA). Most of the women had been infected ...
Tópico(s): HIV/AIDS drug development and treatment
2002 - Lippincott Williams & Wilkins | JAIDS Journal of Acquired Immune Deficiency Syndromes
V. Armendáriz, Miguel José Yácaman, A. Duarte-Möller, Jose R. Peralta‐Videa, Horacio Troiani, Ismael Herrera, Jorge L. Gardea‐Torresdey,
En este estudio se presenta la bio-reduccion de Au(III) a Au(0) por la biomasa de trigo y la formacion de nanoparticulas de oro. La biomasa de trigo fue lavada, molida y tamizada para incrementar el area de biomasa expuesta a la solucion de Au. La biomasa de trigo fue reaccionada con una solucion 0.3 mM de tetraclorourato de potasio a pH de 1, 2, 3, 4, 5 y 6 por un periodo de tres horas y media a temperatura ambiente. La biomasa fue analizada usando un microscopio JEOL-4000 EX de alta resolucion ...
Tópico(s): Nanoparticles: synthesis and applications
2004 - Mexican Society of Physics | Revista Mexicana de Física
Jorge L. Gardea‐Torresdey, Jasón G. Parsons, Eduardo Gomez, Jose R. Peralta‐Videa, Horacio Troiani, Patrícia Santiago, Miguel José Yácaman,
In modern nanotechnology one of the most exciting areas is the interaction between inorganic quantum dots and biological structures. For instance gold clusters surrounded by a shell of organic ligands covalently attach to proteins or other biological substances and can be used for labeling in structural biology. In the present report we show the possibility of using live plants for the fabrication of nanoparticles. Alfalfa plants were grown in an AuCl4 rich environment. The absorption of Au metal ...
Tópico(s): Nanoparticles: synthesis and applications
2002 - American Chemical Society | Nano Letters
Beatriz Gómez Narváez, Esmeralda Mendoza‐Mendoza, René D. Peralta, Horacio Bach, Enrique Díaz Barriga‐Castro, Sonia Judith Segovia-Sandoval, Fidel Martínez‐Gutiérrez,
Bismuth vanadate (BiVO4) is an attractive compound because of its visible light photocatalytic activity with a narrow energy gap of less than 2.4 eV. In addition, it has favorable band edge positions and is stable in an aqueous environment. Its photocatalytic activity can be translated for potential use for degradation of organic matter. To assess this activity, BiVO4 combined with graphene (N-G/BiVO4), silver (Ag/BiVO4), or both of them (N-G/Ag/BiVO4) were synthesized. These nanostructures (NSs) were ...
Tópico(s): Mercury impact and mitigation studies
2023 - Elsevier BV | Journal of Photochemistry and Photobiology A Chemistry
María Mercedes Ávila, María A. Pando, Gladys Carrión, Liliana Martínez Peralta, Horacio Salomón, Manuel Gómez Carrillo, José Sánchez, Sergio Maulen, Jesse Hierholzer, Mark Marinello, Mónica Negrete, Kevin L. Russell, Jean K. Carr,
Summary: This study determined the risk behaviors and viral subtypes of HIV-1 found in 134 heterosexual HIV-seroprevalent maternity patients, 41 of their sexual partners (men who have sex with women [MSW]), and 95 homosexual men (men who have sex with men [MSM]) from Buenos Aires, Argentina. Peripheral blood mononuclear cells (PBMCs) were purified from blood and used for DNA extraction, amplification, and genotyping by the envelope heteroduplex mobility assay (env HMA). Most of the women had been infected ...
Tópico(s): HIV/AIDS drug development and treatment
2002 - Lippincott Williams & Wilkins | JAIDS Journal of Acquired Immune Deficiency Syndromes
O Peralta, Soledad Dı́az, Horacio B. Croxatto,
Subdermal contraceptive implants involve the delivery of a steroid progestin from polymer capsules or rods placed under the skin. The hormone diffuses out slowly at a stable rate, providing contraceptive effectiveness for 1–5 years. The period of protection depends upon the specific progestin and the type of polymer. Advantages of progestin implants include long term contraceptive action without requiring the user's or provider's attention, low dose of highly effective contraception without the ...
Tópico(s): Pharmaceutical industry and healthcare
1995 - Elsevier BV | The Journal of Steroid Biochemistry and Molecular Biology
Carolina Marcucci, Emilia Cohen Sabban, Paula Friedman, Rosario Peralta, Ignacio Calb, Horacio Cabo,
Bowenoid papulosis (BP) corresponds to an in situ squamous cell carcinoma (SCC) located in the anogenital region. It is related to HPV, and presents with gray-brown elevated papules or plaques. A biopsy is needed to confirm the diagnosis; however, dermoscopy may be useful to differentiate this disease from other conditions, such as genital warts, seborrheic keratosis and lichen planus. In this paper we describe the dermoscopic findings in two patients with this disease.
Tópico(s): Genital Health and Disease
2014 - | Dermatology Practical & Conceptual
Arturo Maximiliano Orellana Ossandón, Pedro Bannen Lanata, Luis Alejandro Fuentes Arce, Horacio Gilabert Peralta, Karen Pape Casale,
This paper analyzes the changes in the urban quality of life within the main metropolitan areas of the country over the last decade: Greater Santiago, Greater Valparaiso and Greater Concepcion. To this end, the Urban Quality of Life Index (UQLI) is applied to establish the possible patterns and trends that may shed light on the traces left by this metropolization process. Taking into account that two out of three people could live in the metropolitan areas of Chile during the next decade, and as ...
Tópico(s): Latin American Urban Studies
2013 - University of Chile | Revista INVI
Rubén Peralta, Horacio Hojman,
Introduction Abdominal compartment syndrome (ACS) is defined as a condition in which increased pressure is confined to the abdomen and is associated with a clinical picture involving hemodynamic, respiratory, and renal dysfunction. ACS occurs secondary to accumulation of fluid or gas, or both, in the abdominal cavity. It can have many different causes, including intra-abdominal bleeding after blunt and penetrating abdominal trauma, after abdominal packing for uncontrollable bleeding, and after aggressive ...
Tópico(s): Muscle and Compartmental Disorders
2001 - Lippincott Williams & Wilkins | International Anesthesiology Clinics
V. Armendáriz, Isaac Herrera, Jose R. Peralta‐Videa, Miguel José‐Yacamán, Horacio Troiani, Patrícia Santiago, Jorge L. Gardea‐Torresdey,
Oat (Avena sativa) biomass was studied as an alternative to recover Au(III) ions from aqueous solutions and for its capacity to reduce Au(III) to Au(0) forming Au nanoparticles. To study the binding trend of Au(III) to oat and the possible formation of Au nanoparticles, the biomass and a solution of Au(III) were reacted for a period of 1 h at pH values ranging from 2 to 6. The results demonstrated that Au(III) ions were bound to oat biomass in a pH-dependent manner, with the highest adsorption (about ...
Tópico(s): Laser-Ablation Synthesis of Nanoparticles
2004 - Springer Science+Business Media | Journal of Nanoparticle Research
Jorge L. Gardea‐Torresdey, Eduardo Gomez, Jose R. Peralta‐Videa, Jasón G. Parsons, Horacio Troiani, Miguel José‐Yacamán,
The preparation and study of quantum dots and quantum wires play a very important role in nanotechnology. In this particular study, we report on the uptake of silver by living alfalfa plants. X-ray absorption spectroscopy and transmission electron microscopy (TEM) studies corroborated silver metal uptake by alfalfa plants from a silver-rich solid medium and the subsequent formation of silver nanoparticles. Silver nanoparticle alignment, structure, and coalescence were observed using TEM with an atomic ...
Tópico(s): Nanoparticles: synthesis and applications
2003 - American Chemical Society | Langmuir
O Libonatti, María Mercedes Ávila, Rafael Zlatkes, Sandra Pampuro, Liliana Martínez Peralta, Erling W. Rud, Mark A. Wainberg, Horacio Salomón,
Libonatti, Osvaldo*; Avila, María*; Zlatkes, Rafael†; Pampuro, Sandra*; Peralta, Liliana Martinez*; Rud, Erling‡; Wainberg, Mark§; Salomón, Horacio* Author Information
Tópico(s): Mosquito-borne diseases and control
1998 - Lippincott Williams & Wilkins | Journal of Acquired Immune Deficiency Syndromes & Human Retrovirology
Saúl León-Ballesteros, Rolando Espinosa-Morales, Patricia Clark‐Peralta, Ascención Guadalupe Gómez-Pineda, Jaime Horacio Guadarrama-Becerril,
The beneficial effects of exercise in the treatment of Osteoarthritis (OA) of the knee have been verified in several studies. Kinesiotaping (KT) has been popularized due to its reducing local pressure and increasing circulation, resulting in decreased pain. Determine the clinical effectiveness of strengthening therapy with KT in women with knee OA for pain reduction. Thirty two women with knee OA, aged 50–70 years, with overweight or obesity grade I, who were randomized into two groups: one with exercise ...
Tópico(s): Knee injuries and reconstruction techniques
2018 - Elsevier BV | Reumatología Clínica
Alex Espinosa, Moira Vignoles, Manuel G mez Carrillo, Haynes W. Sheppard, Richard Donovan, Liliana Mart nez Peralta, Diana Rossi, Graciela Radulich, Horacio Salom n, Mercedes Weissenbacher,
Summary: The presence of recombinant intersubtypes of HIV-1 in Argentina has been reported since the mid-1990s. In this study, sequences of a region of the gag, pol, and vpu genes of HIV-1 were analyzed in samples of 21 injection drug users (IDUs) residing in the suburbs of the city of Buenos Aires. Genomic characterization and identification of recombination sites were made comparing the 3 regions with reference isolation sequences of subtypes B, F, C, A, and B/F recombinants: CRF12_BF and non-CRF12_ ...
Tópico(s): Cytomegalovirus and herpesvirus research
2004 - Lippincott Williams & Wilkins | JAIDS Journal of Acquired Immune Deficiency Syndromes
Gabriela Juez G, Soledad Díaz F, Octavio Peralta M, Horacio B Croxatto A, Maria Eugenia Casado G, Ana Maria Salyattierra M, Eliana Duran G, Miriam Fernández,
Growth Pattern in Selected Chilean Breastfed InfantsThis report describes the growth pattern of healthy, low middle and low socioeconomic class Chilean infants during exclusive breastfeeding.242 infants who were on exclusive breastfeeding at day 30 postparturn entered the study-Of these, 59% were fully nursing at 6 months and grew at a normal rate without receiving etiher supplementary milk or non dairy food, Suppplementary feedings were administered in 27% of cases because of suspected primary ...
Tópico(s): Breastfeeding Practices and Influences
1984 - Elsevier BV | Revista chilena de pediatría
Se reconstruye la trayectoria del titiritero Horacio Peralta (Buenos Aires, 1952), perseguido por la dictadura argentina de 1976-1983 para forzarlo a acabar con sus prácticas (y las de su ...
Tópico(s): Latin American Literature Studies
2020 - UNIVERSIDADE DO OESTE DE SANTA CATARINA | Móin-Móin Revista de estudos sobre teatro de formas animadas
Abel Novillo, Daniel Peralta, Guillermo Dima, Horacio Besasso, Luis Soifer,
Some patients complain of digestive symptoms related to diary products intake. This intolerance could be associated with an intestinal bacterial overgrowth or an increased fermentative intestinal profile and not due to lactose malabsorption.To estimate the prevalence of bacterial overgrowth in subjects with digestive symptoms related to diary products intolerance.Patients who had performed hydrogen breath test due to chronic functional distension syndrome (Rome III) were analyzed. Thirty of them ( ...
Tópico(s): Clinical Nutrition and Gastroenterology
2010 - Sociedad Argentina de Gastroenterologia | Acta gastroenteorológica latinoamericana/Acta gastroenterológica latinoamericana
Ignacio Mena, Martha I. Nelson, Francisco Quezada-Monroy, Jayeeta Dutta, Refugio Cortes-Fernández, Jesús Horacio Lara-Puente, Felipa Castro-Peralta, Luis F. Cunha, Nídia S. Trovão, Bernardo Lozano-Dubernard, Andrew Rambaut, Harm van Bakel, Adolfo García‐Sastre,
Asia is considered an important source of influenza A virus (IAV) pandemics, owing to large, diverse viral reservoirs in poultry and swine. However, the zoonotic origins of the 2009 A/H1N1 influenza pandemic virus (pdmH1N1) remain unclear, due to conflicting evidence from swine and humans. There is strong evidence that the first human outbreak of pdmH1N1 occurred in Mexico in early 2009. However, no related swine viruses have been detected in Mexico or any part of the Americas, and to date the most ...
Tópico(s): Respiratory viral infections research
2016 - eLife Sciences Publications Ltd | eLife
Martha L. López, Jorge L. Gardea‐Torresdey, Jose R. Peralta‐Videa, Guadalupe de la Rosa, V. Armendáriz, Ismael Herrera, Horacio Troiani, John A. Henning,
Heavy metals from mining, smelting operations and other industrial processing facilities pollute wastewaters worldwide. Extraction of metals from industrial effluents has been widely studied due to the economic advantages and the relative ease of technical implementation. Consequently, the search for new and improved methodologies for the recovery of gold has increased. In this particular research, the use of cone hops biomass (Humulus lupulus) was investigated as a new option for gold recovery. ...
Tópico(s): Lignin and Wood Chemistry
2005 - Hindawi Publishing Corporation | Bioinorganic Chemistry and Applications
Juan S. Lasa, Daniel Peralta, Guillermo Dima, Abel Novillo, Horacio Besasso, Luis Soifer,
There is growing evidence that gut flora plays a role in the development of Irritable Bowel Syndrome (IBS). Abdominal bloating is a common symptom in these patients and the severity of this symptom could be related to the variations in their fermentative profiles, obtained by measuring the levels of breath hydrogen excretion after lactulose ingestion. Our objective was to determine the difference in abdominal bloating severity between IBS patients with high vs low levels of breath hydrogen excretion ...
Tópico(s): Dysphagia Assessment and Management
2012 - Elsevier BV | Revista de Gastroenterología de México
Carolina Marcucci, Emilia Cohen Sabban, Paula Friedman, Rosario Peralta, Ricardo Sánchez Marull, Horacio Cabo,
Collision tumors consist of two different neoplasms occurring concurrently in the same lesion. This association has been described for both benign and malignant neoplasms that may be difficult to identify. Therefore, dermoscopy is a valuable tool to make a correct diagnosis. We report a very unusual collision tumor composed of both a dermatofibroma and a melanocytic nevus mimicking melanoma.
Tópico(s): Nonmelanoma Skin Cancer Studies
2015 - | Dermatology Practical & Conceptual
María Rosario Peralta, Horacio Cabo, Emilia Cohen Sabban, Gabriel Salerni, Virginia González,
Citation: Peralta R, Cabo H, Cohen Sabban E, Salerni G, González VM. Dermoscopic Features of External Ear Melanoma: A Case Series. Dermatol Pract Concept. 2023;13(1):e2023033. DOI: https://doi.org/10.5826/dpc.1301a33
Tópico(s): Cutaneous lymphoproliferative disorders research
2023 - | Dermatology Practical & Conceptual
Tópico(s): Ethics and bioethics in healthcare
2014 - Universidad de Concepción. | Journal Of Oral Research
Produção Nacional
Revisado por pares
Walter Oelemann, Jorge Néstor Velásquez, Silvana Carnevale, Horacio Besasso, Maria Gabriela Teixeira, José Mauro Peralta,
Chagas' disease or American trypanosomiasis is endemic throughout most parts of central and south America. As infection with HIV is increasing dramatically in areas endemic for Chagas' disease, it is possible that the presence of Trypanosoma cruzi in the gut can account for symptoms in T. cruzi/HIV-coinfected patients. In a cohort of 95 adult patients with AIDS who had been evaluated for chronic diarrhoea, stool samples were routinely examined for the presence of bacteria and parasites. Upper intestinal ...
Tópico(s): Parasitic Infections and Diagnostics
2000 - Lippincott Williams & Wilkins | AIDS
Saúl León-Ballesteros, Rolando Espinosa-Morales, Patricia Clark‐Peralta, Ascención Guadalupe Gómez-Pineda, Jaime Horacio Guadarrama-Becerril,
The beneficial effects of exercise in the treatment of Osteoarthritis (OA) of the knee have been verified in several studies. Kinesiotaping (KT) has been popularized due to its reducing local pressure and increasing circulation, resulting in decreased pain. Determine the clinical effectiveness of strengthening therapy with KT in women with knee OA for pain reduction. Thirty two women with knee OA, aged 50–70 years, with overweight or obesity grade I, who were randomized into two groups: one with exercise ...
Tópico(s): Knee injuries and reconstruction techniques
2020 - Elsevier BV | Reumatología Clínica (English Edition)
Rosario Peralta, Gabriel Salerni, Emilia Cohen Sabban, María Belén Marín, Horacio Cabo,
Citation: Peralta R, Salerni G, Cohen Sabban E, Marin MB, Cabo H. Dermoscopy of a squamous cell carcinoma of the lower lip showing multiple rosettes. Dermatol Pract Concept. 2020;10(1):e2020022. DOI: https://doi.org/10.5826/dpc.1001a22
Tópico(s): Genetic and rare skin diseases.
2019 - | Dermatology Practical & Conceptual
Produção Nacional
Revisado por pares
Jaime Martínez‐Castillo, Ademir Sérgio Ferreira de Araújo, María Isabel Chacón-Sánchez, Luís Guillermo Santos, Ângela Celis de Almeida Lopes, Kimberly Gibson, Regina Lúcia Ferreira Gomes, Rubén H. Andueza‐Noh, Elena Bitochi, Horacio Ballina-Gómez, Eduardo Peralta, Ernesto Ormeño‐Orrillo, Luz Espinoza, Carlos Nieto, Ángel Murillo, Eudaldo Jadán-Veriñas, Tatiana García, Jorge Duitama, Jonás A. Aguirre‐Liguori, Andrea León-Cadena, Nora Castañeda-Alvarez, Daniel G. Debouck,
Tópico(s): Plant-Microbe Interactions and Immunity
2023 - Springer Science+Business Media | Genetic Resources and Crop Evolution