1
|
Mosquera-Sulbaran JA, Pedreañez A, Vargas R, Hernandez-Fonseca JP. Apoptosis in post-streptococcal glomerulonephritis and mechanisms for failed of inflammation resolution. Pediatr Nephrol 2024; 39:1709-1724. [PMID: 37775580 DOI: 10.1007/s00467-023-06162-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/05/2023] [Accepted: 09/05/2023] [Indexed: 10/01/2023]
Abstract
Post-streptococcal glomerulonephritis is a condition resulting from infection by group A beta-hemolytic streptococcus. The main mechanism involves the formation of immune complexes formed in the circulation or in situ on the glomerular basement membrane, which activates complement and causes various inflammatory processes. Cellular mechanisms have been reported in the induction of kidney damage represented by the infiltration of innate cells (neutrophils and monocyte/macrophages) and adaptive cells (CD4 + lymphocytes and CD8 + lymphocytes) of the immune system. These cells induce kidney damage through various mechanisms. It has been reported that nephritogenic antigens are capable of inducing inflammatory processes early, even before the formation of immune complexes. Usually, this disease progresses towards clinical and renal normalization; however, in a smaller number of patients, it evolves into chronicity and persistent kidney damage. Hypotheses have been proposed regarding the mechanisms underlying this progression to chronicity including failure to induce apoptosis and failure to phagocytose apoptotic cells, allowing these cells to undergo membrane permeabilization and release pro-inflammatory molecules into the environment, thereby perpetuating renal inflammation. Other mechanisms involved include persistent infection, genetic background of the host's complement system, tubulointerstitial changes, and pre-existing kidney damage due to old age and comorbidities.
Collapse
Affiliation(s)
- Jesús A Mosquera-Sulbaran
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette," Facultad de Medicina, Universidad del Zulia, Apartado Postal: 23, Maracaibo, 4001-A, Zulia, Venezuela.
| | - Adriana Pedreañez
- Escuela de Bioanálisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Renata Vargas
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette," Facultad de Medicina, Universidad del Zulia, Apartado Postal: 23, Maracaibo, 4001-A, Zulia, Venezuela
| | - Juan Pablo Hernandez-Fonseca
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette," Facultad de Medicina, Universidad del Zulia, Apartado Postal: 23, Maracaibo, 4001-A, Zulia, Venezuela
- Servicio de Microscopia Electrónica del Centro Nacional de Biotecnología (CNB-CSIC), Madrid, Spain
| |
Collapse
|
2
|
Pedreañez A, Carrero Y, Vargas R, Hernandez-Fonseca JP, Mosquera-Sulbaran J. Possible role of metformin as an antidepressant in diabetes. J Affect Disord 2024; 351:349-355. [PMID: 38286229 DOI: 10.1016/j.jad.2024.01.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/21/2024] [Accepted: 01/26/2024] [Indexed: 01/31/2024]
Abstract
OBJECTIVE Metformin (MET) is a drug used in the treatment of type 2 diabetes due to its insulin receptor sensitizing properties and anti-hepatic gluconeogenesis effect. One of the comorbidities in diabetes is the depression. This review aimed at summarizing the results of the available MET, depression and diabetes studies to clarify the possible role of MET in the depression during diabetes. METHODS A bibliographic search on PubMed, Embase, PsycINFO, Web of Science, Cochrane Central for studies referring to MET, depression and diabetes. RESULTS Several studies have associated depression to the chronic inflammation that characterizes diabetes. Additionally MET is an anti-inflammatory molecule that generally acts by activating AMPK and inhibiting the NF-kB factor. In the context of diabetes, MET can act directly as an anti-inflammatory drug as well as inhibiting other pro-inflammatory molecules. In this regard, MET may inhibit the pro-inflammatory effects of angiotensin II. By facilitating the action of insulin and reducing hepatic gluconeogenesis, MET reduces circulating glucose levels, decreasing the formation of advanced glycation end products and therefore inflammation. During diabetes, the gut microbiota and the permeability of the intestinal barrier are altered, causing high levels of circulating lipopolysaccharides (LPS), which induce inflammation. MET can normalize the microbiota and the intestinal barrier permeability reducing the levels of LPS and inflammation. Clinical and experimental studies show the anti-depressant effect of MET mediated by different mechanisms both at the peripheral level and in the central nervous system. CONCLUSION Therefore, MET as an anti-inflammatory drug can decrease symptoms of depression and represents a therapeutic approach to improve the psychological state of patients with diabetes. Additionally, insulin also has an anti-inflammatory effect that could act together with MET.
Collapse
Affiliation(s)
- Adriana Pedreañez
- Cátedra de Inmunología, Escuela de Bioanálisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Yenddy Carrero
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Renata Vargas
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Juan P Hernandez-Fonseca
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela; Servicio de Microscopia Electrónica del Centro Nacional de Biotecnología (CNB-CSIC) Madrid, Spain
| | - Jesús Mosquera-Sulbaran
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
| |
Collapse
|
3
|
Salinas CE, Patey OV, Murillo C, Gonzales M, Espinoza V, Mendoza S, Ruiz R, Vargas R, Perez Y, Montaño J, Toledo-Jaldin L, Badner A, Jimenez J, Peñaranda J, Romero C, Aguilar M, Riveros L, Arana I, Giussani DA. Preeclampsia and risk of maternal pulmonary hypertension at high altitude in Bolivia. J Dev Orig Health Dis 2023; 14:523-531. [PMID: 37497575 DOI: 10.1017/s2040174423000193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Women with a history of preeclampsia (PE) have a greater risk of pulmonary arterial hypertension (PAH). In turn, pregnancy at high altitude is a risk factor for PE. However, whether women who develop PE during highland pregnancy are at risk of PAH before and after birth has not been investigated. We tested the hypothesis that during highland pregnancy, women who develop PE are at greater risk of PAH compared to women undergoing healthy highland pregnancies. The study was on 140 women in La Paz, Bolivia (3640m). Women undergoing healthy highland pregnancy were controls (C, n = 70; 29 ± 3.3 years old, mean±SD). Women diagnosed with PE were the experimental group (PE, n = 70, 31 ± 2 years old). Conventional (B- and M-mode, PW Doppler) and modern (pulsed wave tissue Doppler imaging) ultrasound were applied for cardiovascular íííassessment. Spirometry determined maternal lung function. Assessments occurred at 35 ± 4 weeks of pregnancy and 6 ± 0.3 weeks after birth. Relative to highland controls, highland PE women had enlarged right ventricular (RV) and right atrial chamber sizes, greater pulmonary artery dimensions and increased estimated RV contractility, pulmonary artery pressure and pulmonary vascular resistance. Highland PE women had lower values for peripheral oxygen saturation, forced expiratory flow and the bronchial permeability index. Differences remained 6 weeks after birth. Therefore, women who develop PE at high altitude are at greater risk of PAH before and long after birth. Hence, women with a history of PE at high altitude have an increased cardiovascular risk that transcends the systemic circulation to include the pulmonary vascular bed.
Collapse
Affiliation(s)
- C E Salinas
- Instituto Boliviano de Biología de Altura (IBBA), UMSA, La Paz, Bolivia
| | - O V Patey
- Department of Physiology, Development & Neuroscience, University of Cambridge, Cambridge, UK
| | - C Murillo
- Instituto Boliviano de Biología de Altura (IBBA), UMSA, La Paz, Bolivia
| | - M Gonzales
- Instituto Boliviano de Biología de Altura (IBBA), UMSA, La Paz, Bolivia
| | - V Espinoza
- Instituto Boliviano de Biología de Altura (IBBA), UMSA, La Paz, Bolivia
| | - S Mendoza
- Centro de Salud Tembladerani, La Paz, Bolivia
| | - R Ruiz
- Hospital Materno Infantil, La Paz, Bolivia
| | - R Vargas
- Hospital de la Mujer, La Paz, Bolivia
| | - Y Perez
- Hospital de la Mujer, La Paz, Bolivia
| | - J Montaño
- Hospital de la Mujer, La Paz, Bolivia
| | | | - A Badner
- Hospital Materno Infantil, La Paz, Bolivia
| | - J Jimenez
- Instituto Boliviano de Biología de Altura (IBBA), UMSA, La Paz, Bolivia
| | | | - C Romero
- Instituto Boliviano de Biología de Altura (IBBA), UMSA, La Paz, Bolivia
| | - M Aguilar
- Instituto Boliviano de Biología de Altura (IBBA), UMSA, La Paz, Bolivia
| | - L Riveros
- Instituto Boliviano de Biología de Altura (IBBA), UMSA, La Paz, Bolivia
| | - I Arana
- Grupo Premio Nobel, La Paz, Bolivia
| | - D A Giussani
- Department of Physiology, Development & Neuroscience, University of Cambridge, Cambridge, UK
- BHF Centre for Research Excellence, University of Cambridge, Cambridge, UK
- Strategic Research Initiative in Reproduction, University of Cambridge, Cambridge, UK
| |
Collapse
|
4
|
Galbán-Malagón CJ, Zapata J, Perez-Venegas DJ, Vargas R, Latorre-Padilla N, Luarte T, Ahrendt C, Hirmas-Olivares A, Gómez-Aburto V, Tapia P, Isamit V, Arce P, Sánchez C, Pozo K. Occurrence, source estimation, and risk assessment of Polycyclic Aromatic Hydrocarbons in coastal seawaters from the Quintero Industrial Complex (Valparaíso, Chile). Sci Total Environ 2023; 878:162957. [PMID: 36958545 DOI: 10.1016/j.scitotenv.2023.162957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/19/2023] [Accepted: 03/15/2023] [Indexed: 05/13/2023]
Abstract
In the 1960s, the Quintero industrial complex was inaugurated in Chile. This began a history of dramatic anthropogenic impacts on the Chilean coast. Among the known, we could mention high atmospheric emissions of chemicals due to combustion processes and frequent oil spills. For this reason, we surveyed the concentrations of fifteen EPAPAHs in the surface coastal waters of the Quintero Bay area in 2015. The levels found are in the range of the highest levels when reviewing the literature (0.97 μg L-1 up to 9.84 μg L-1). The highest levels were found in the vicinity of the industrial complex and decreased in the other two zones. The concentration of individual compounds significantly exceeds the levels recommended by the EPA (Environmental Protection Agency) and the EU water framework directive (WFD). The risk estimations revealed that PAH concentrations represent high-risk for wildlife. Molecular ratios of PAHs were used to identify the possible sources, being these were mainly of pyrogenic origin, agreeing with an origin in the combustion of wood, coal, grass, and fossil fuels. This study contributes to the first data for surface water in a country's highly impacted industrial coastal area.
Collapse
Affiliation(s)
- C J Galbán-Malagón
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile; Institute of Environment, Florida International University, University Park, Miami, FL 33199, USA.
| | - J Zapata
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile; Estación Costera de Investigaciones Marinas, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - D J Perez-Venegas
- Centro de Investigación y Gestión de Recursos Naturales (CIGREN), Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - R Vargas
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile
| | - N Latorre-Padilla
- Doctorado en Medicina de la Conservación, Facultad de Ciencias de la Vida, Universidada Andrés Bello, Santiago, Chile; Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago 8370251, Chile; Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andrés, Bello, Quintay, Valparaíso 2531015, Chile; Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile; Instituto Milenio en Socio-Ecología Costera (SECOS), Santiago 8370251, Chile
| | - T Luarte
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile; Doctorado en Medicina de la Conservación, Facultad de Ciencias de la Vida, Universidada Andrés Bello, Santiago, Chile
| | - C Ahrendt
- Fundación Acción Natural, Laguna, Valparaíso, Chile
| | - A Hirmas-Olivares
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile
| | - V Gómez-Aburto
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile
| | - P Tapia
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - V Isamit
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - P Arce
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - C Sánchez
- Escuela de Geología, Universidad Mayor, San Pío X 2422, 7510041 Providencia, Región Metropolitana, Chile
| | - K Pozo
- Masaryk University, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, 62500 Brno, Czech Republic; Universidad San Sebastián, Facultad de Ingeniería, Arquitectura y diseño, Lientur 1457, 4030000 Concepción, Chile.
| |
Collapse
|
5
|
Mosquera-Sulbarán J, Ryder E, Pedreáñez A, Vargas R. Angiotensin II and human obesity. A narrative review of the pathogenesis. Investigación Clínica 2022. [DOI: 10.54817/ic.v63n4a09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Angiotensin II (Ang II) is a hormone and the main effector of the renin-angiotensin system (RAS). This peptide has crucial pathophysiologi-cal effects on hypertension, cardiac hypertrophy, endothelial proliferation, in-flammation and tissue remodelling through G protein-coupled receptors. The pro-inflammatory role of Ang II has been reported in various inflammatory pro-cesses. Obesity is linked to a chronic inflammatory process which in turn is the cause of some of its morbidities. Ang II is related to the comorbidities related to the comorbidities of obesity, which include alterations in the heart, kid-ney, hypertension and coagulation. In this regard, activation of AT1 receptors by Ang II can induce an inflammatory process mediated by the transcription factor NF-kB, triggering inflammation in various systems that are related to the comorbidities observed in obesity. The aim of this review was to highlight the pro-inflammatory effects of Ang II and the alterations induced by this hor-mone in various organs and systems in obesity. The search was done since 1990 through Medline, EMBASE and PubMed, using the keywords: angiotensin II; an-giotensin II, obesity; angiotensin II, kidney, obesity; angiotensin II, coagulation, obesity; angiotensin II, inflammation, obesity; angiotensin II, adipose tissue, obesity; angiotensin II, hypertension, obesity; angiotensin II, insulin resistance, obesity; angiotensin II, adiponectin, leptin, obesity; angiotensin II, COVID-19, obesity. Angiotensin II through its interaction with its AT1 receptor, can induce alterations in diverse systems that are related to the comorbidities observed in obesity. Therapeutic strategies to decrease the production and action of Ang II could improve the clinical conditions in individuals with obesity.
Collapse
Affiliation(s)
- Jesús Mosquera-Sulbarán
- Instituto de Investigaciones Clínicas “Dr. Américo Negrette”, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Elena Ryder
- Instituto de Investigaciones Clínicas “Dr. Américo Negrette”, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Adriana Pedreáñez
- Cátedra de Inmunología, Escuela de Bioanálisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Renata Vargas
- Instituto de Investigaciones Clínicas “Dr. Américo Negrette”, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| |
Collapse
|
6
|
Torres MI, Farelo H, Otero P, Di Cugno M, Kozak A, Ruibal G, Rodriguez P, Fenili C, Sequera A, Álvarez G, Anselmo C, Araque S, Barrios V, Belloni J, Blanco C, Burakowski D, Cabral F, Cãceres L, Castillo MS, Cateura M, Cepero MI, Corbatta C, De La Colina A, De Miguel L, Delgado V, Dominguez C, Dragani V, Fillipini S, Foglino E, Gasparin A, Gerosa P, Golinelli B, Herrero D, Isaack K, Laguarde M, Lalosa L, López M, Lucero V, Mallo MV, Marina C, Minotti F, Mora ME, Palacios M, Paz Pacheco J, Perez Bonetti L, Podadas Gaspa S, Rios E, Rossi O, Sanhueza N, Sosa S, Surbando L, Vargas R. ODP109 PARATHYROID HORMONE AND 25 OH VITAMINA D IN PREGNANCY: DATA FROM AN ARGENTINEAN COHORT SUPPORTING SUPPLEMENTATION. J Endocr Soc 2022. [PMCID: PMC9625022 DOI: 10.1210/jendso/bvac150.352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Vitamin D (Vit D) deficiency has become a global health care issue, as it affects a great number of women during pregnancy and lactation. Vit D levels are critical during pregnancy, being the mother the only source of them for the developing fetus; an enzymatic system for conversion of 25OH VitD into 1-25(OH) 2 VitD is present in the placenta, thus reinforcing the importance of VitD during gestation. VitD deficiency has been associated with obstetric complications and adverse outcomes in offspring, affecting skeletal, immunological and respiratory systems. It is known that prenatal supplements available do not contain enough VitD to fulfil requirements. It is generally accepted that elevated PTH is an indicator of VitD deficiency, and Hysaj O et al (2021) showed that 25OH VitD is a statistically significant determinant of PTH levels in early and late pregnancy. Aim To evaluateVitD status and its relationship to parathyroid hormone (PTH) in a cohort of pregnant women representative of multiple Argentinian regions. Subjects and Methods Data from samples of 423 pregnant women in 1st and 2nd trimester were collected between 2016 and 2021. VitD was measured in different platforms: DiaSorin Liaison CLIA (n=184), Roche COBAS ECLIA (n=166), Abbott ARCHITECT CMIA (n=33), Biomérieux VIDAS ELFA (n=18) and Siemens CENTAUR CLIA (n=16). PTH (ng/L) was measured in 162 samples by SIEMENS IMMULITE CLIA and Roche COBAS ECLIA. As VitD is light-exposure dependent, we considered warm and high light-exposure season period from December to March and cold and low light season from April to September. VITD (ng/L) levels were classified as Deficient (<20), Insufficient (between 21 and 29) and Sufficient (>30) (Endocrine Society, 2014). Results From 423 data collected, 102 were excluded because of lacking information on VitD supplementation. From the remaining non supplemented 321 samples, 48% resulted insufficient, 30% deficient and 22% sufficient for VitD (groups comparison: p< 0. 05, Kruskal Wallis-Dunn test). The seasonal period and pregnancy trimester distributions didn't show significant differences. Similar results of VitD insufficiency were found in the major used platforms, regardless the seasonal period considered. PTH results expressed as median and interquartile range were (ng/L): 32. 0 (13.7-169. 0) in Deficient pregnancies (N=92), 23.7(13.3-88. 0) in Insufficient (n=50) and 18.7 (9.8-55.7) in Sufficient (n=20). Conclusions This study shows VitD inadequate levels in 78% in non-supplemented pregnancies, regardless season or measurement platform. Relative elevated levels of PTH were associated to pregnancies with VitD deficiency, evidenciating a regulatory role according to published data. To improve VitD status during pregnancy it would be advisable to pose new strategies for prenatal supplements developed by a multidisciplinary professional team. Presentation: No date and time listed
Collapse
|
7
|
|
8
|
Sonego M, Sciuti VF, Vargas R, Canto RB, Pessan LA. Composite design bioinspired by the mesocarp of Brazil nut ( Bertholletia excelsa). Bioinspir Biomim 2022; 17:046011. [PMID: 35552274 DOI: 10.1088/1748-3190/ac6f37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
The mesocarp ofBertholletia excelsais a rich source of inspiration for strong, stiff and damage-tolerant composites. The bioinspired composites developed here are composed of an epoxy matrix with a 3D printed polylactic acid reinforced with 30% of carbon fiber (PLA-30CF) inspired in fibers, and syntactic foam inspired by sclereids. Monotonic and cyclic four-point bending tests and compact tension fracture toughness tests were carried out assisted by digital image correlation (DIC) to evaluate flexural properties, damage tolerance, and theR-curve of the composite. Its microstructure and fracture surface were analyzed by scanning electron microscopy. The mechanical performance of the bioinspired composite is promising: density of 1.0 g cm-3, flexural apparent elastic modulus of 1.6 GPa, and flexural strength six times higher than the neat epoxy, i.e. 17 MPa. Although the PLA-30CF printed structure led to a risingR-curve, the syntactic foam needs optimization to have a synergistic effect.
Collapse
Affiliation(s)
- M Sonego
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
- Mechanical Engineering Institute, Federal University of Itajubá (UNIFEI), Itajubá, MG, Brazil
| | - V F Sciuti
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
- Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - R Vargas
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
- Université Paris-Saclay, CentraleSupélec, ENS Paris-Saclay, CNRS, LMPS - Laboratoire de Mécanique Paris-Saclay, Gif-sur-Yvette, France
| | - R B Canto
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
- Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - L A Pessan
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
- Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| |
Collapse
|
9
|
Dwivedi D, Santos ALD, Barnard MA, Crimmins TM, Malhotra A, Rod KA, Aho KS, Bell SM, Bomfim B, Brearley FQ, Cadillo‐Quiroz H, Chen J, Gough CM, Graham EB, Hakkenberg CR, Haygood L, Koren G, Lilleskov EA, Meredith LK, Naeher S, Nickerson ZL, Pourret O, Song H, Stahl M, Taş N, Vargas R, Weintraub‐Leff S. Biogeosciences Perspectives on Integrated, Coordinated, Open, Networked (ICON) Science. Earth Space Sci 2022; 9:e2021EA002119. [PMID: 35865637 PMCID: PMC9286804 DOI: 10.1029/2021ea002119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/15/2022] [Accepted: 02/15/2022] [Indexed: 06/15/2023]
Abstract
This article is composed of three independent commentaries about the state of Integrated, Coordinated, Open, Networked (ICON) principles in the American Geophysical Union Biogeosciences section, and discussion on the opportunities and challenges of adopting them. Each commentary focuses on a different topic: (a) Global collaboration, technology transfer, and application (Section 2), (b) Community engagement, community science, education, and stakeholder involvement (Section 3), and (c) Field, experimental, remote sensing, and real-time data research and application (Section 4). We discuss needs and strategies for implementing ICON and outline short- and long-term goals. The inclusion of global data and international community engagement are key to tackling grand challenges in biogeosciences. Although recent technological advances and growing open-access information across the world have enabled global collaborations to some extent, several barriers, ranging from technical to organizational to cultural, have remained in advancing interoperability and tangible scientific progress in biogeosciences. Overcoming these hurdles is necessary to address pressing large-scale research questions and applications in the biogeosciences, where ICON principles are essential. Here, we list several opportunities for ICON, including coordinated experimentation and field observations across global sites, that are ripe for implementation in biogeosciences as a means to scientific advancements and social progress.
Collapse
Affiliation(s)
- D. Dwivedi
- Earth and Environmental Sciences AreaLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | - A. L. D. Santos
- Department of Environmental EngineeringFederal University of ParanáPolytechnic Center CampusCuritibaBrazil
| | - M. A. Barnard
- Institute of Marine SciencesUniversity of North Carolina at Chapel HillMorehead CityNCUSA
| | - T. M. Crimmins
- School of Natural Resources and the EnvironmentUSA National Phenology NetworkUniversity of ArizonaTucsonAZUSA
| | - A. Malhotra
- Department of Earth System ScienceStanford UniversityStanfordCAUSA
| | - K. A. Rod
- Earth and Biological Sciences DirectoratePacific Northwest National LaboratoryRichlandWAUSA
| | - K. S. Aho
- National Ecological Observatory NetworkBattelleBoulderCOUSA
| | - S. M. Bell
- Institute of Environmental Science and Technology (ICTA)Universitat Autònoma de Barcelona (UAB)BellaterraSpain
| | - B. Bomfim
- Climate and Ecosystems Sciences DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | - F. Q. Brearley
- Department of Natural SciencesManchester Metropolitan UniversityManchesterUK
| | | | - J. Chen
- Department of Geography, Environment, and Spatial SciencesMichigan State UniversityEast LansingMIUSA
| | - C. M. Gough
- Department of BiologyVirginia Commonwealth UniversityRichmondVAUSA
| | - E. B. Graham
- Earth and Biological Sciences DirectoratePacific Northwest National LaboratoryRichlandWAUSA
- School of Biological SciencesWashington State UniversityRichlandWAUSA
| | - C. R. Hakkenberg
- School of Informatics, Computing & Cyber SystemsNorthern Arizona UniversityFlagstaffAZUSA
| | - L. Haygood
- Department of GeosciencesThe University of TulsaTulsaOKUSA
- Boone Pickens School of GeologyOklahoma State UniversityStillwaterOKUSA
| | - G. Koren
- Copernicus Institute of Sustainable DevelopmentUtrecht UniversityUtrechtThe Netherlands
| | | | - L. K. Meredith
- School of Natural Resources and the EnvironmentUniversity of ArizonaTucsonAZUSA
| | - S. Naeher
- Department of Surface GeosciencesGNS ScienceLower HuttNew Zealand
| | | | | | - H.‐S. Song
- Department of Biological Systems EngineeringUniversity of Nebraska–LincolnLincolnNEUSA
- Department of Food Science and TechnologyUniversity of Nebraska–LincolnLincolnNEUSA
| | - M. Stahl
- Department of GeosciencesUnion CollegeSchenectadyNYUSA
| | - N. Taş
- Earth and Environmental Sciences AreaLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | - R. Vargas
- Department of Plant and Soil SciencesUniversity of DelawareNewarkDEUSA
| | | |
Collapse
|
10
|
Fertitta L, Bolling M, Vargas R, van den Akker P, Bourrat E, van Geel M, Knebelmann B, Leclerc-Mercier S, Houillier P, Hadj-Rabia S. 085 Hypohidrosis, ichthyosis and hypokalemia: HELIX syndrome. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
11
|
|
12
|
Panza SB, Vargas R, Balbo SL, Bonfleur ML, Granzotto DCT, Sant'Ana DMG, Nogueira-Melo GA. Perinatal exposure to low doses of glyphosate-based herbicide combined with a high-fat diet in adulthood causes changes in the jejunums of mice. Life Sci 2021; 275:119350. [PMID: 33737081 DOI: 10.1016/j.lfs.2021.119350] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 12/12/2022]
Abstract
AIM Exposure to pesticides and consumption of high-fat diets are widespread in society. Reports have shown that exposure to glyphosate and a high-fat diet can cause gastrointestinal disorders and increase susceptibility to obesity. Thus, this study evaluated the impacts of perinatal exposure to glyphosate followed by consumption of a high-fat diet in adulthood on the histology and morphometry of jejunums and enteric nervous system of C57BL/6 mice. MATERIAL AND METHODS After mating, 20 C57BL/6 female mice were separated into a control group (CG) and a glyphosate group (GLY) that received water with 0.5% glyphosate. After the lactation period, some male offspring were randomly separated into CG-SD and GLY-SD (standard diet) groups or CG-HD and GLY-HD (high-fat diet) groups. After 12 weeks, jejunum samples were collected and submitted to histological analysis. KEY FINDINGS Indirect exposure to glyphosate changed the morphometry of the intestinal wall, increased the proportion of intraepithelial lymphocytes (IELs) and goblet cells, and altered the area occupied by collagen fibers. The hyperlipidemic diet hypertrophied the jejunal total wall, total muscular and submucosal layers, decreased IELs, and increased the proportion of goblet cells. GLY-HD mice had shallower crypts, shorter villi, and less goblet cells and IELs than mice from GLY-SD group. GLY-HD also showed an increased number of neurons in myenteric and submucosal plexuses. Groups exposed to glyphosate and/or fed a high-fat diet had atrophied submucosal neurons. SIGNIFICANCE This study suggests that perinatal glyphosate exposure combined with a high-fat diet in adulthood increases the risk of jejunum inflammation and dysfunction.
Collapse
Affiliation(s)
- S B Panza
- Biosciences and Physiopathology Program, Universidade Estadual de Maringá, Maringá, Brazil
| | - R Vargas
- Laboratory of Cellular and Molecular Biology, Universidade Estadual de Maringá, Maringá, Brazil
| | - S L Balbo
- Laboratory of Biophysics and Human Physiology, Universidade Estadual do Oeste do Paraná, Cascavel, Brazil
| | - M L Bonfleur
- Laboratory of Biophysics and Human Physiology, Universidade Estadual do Oeste do Paraná, Cascavel, Brazil
| | - D C T Granzotto
- Department of Statistics, Universidade Estadual de Maringá, Maringá, Brazil
| | - D M G Sant'Ana
- Biosciences and Physiopathology Program, Universidade Estadual de Maringá, Maringá, Brazil; Department of Morphological Sciences, Universidade Estadual de Maringá, Maringá, Brazil
| | - G A Nogueira-Melo
- Biosciences and Physiopathology Program, Universidade Estadual de Maringá, Maringá, Brazil.
| |
Collapse
|
13
|
Maurizi N, Fumagalli C, Spinicci M, Guglielmi E, Rosselli M, Gamboa H, Vargas R, Strohmeyer M, Bartoloni A, Olivotto I. Feasibility of a combined mobile-health electrocardiographic and rapid diagnostic test screening for Chagas-related cardiac alterations. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Chronic Chagas cardiomyopathy (CChC) is the most common cause of death related to Chagas disease (CD), and it develops in 20–30% of infected individuals. However, access to both CD testing and basic cardiac care is often limited in rural deprived areas, hyperendemic for CD.
Purpose
To assess the feasibility of a combined mobile-health (m-Health) electrocardiographic (ECG) and rapid diagnostic test (RDT) screening for Chagas-related cardiac alterations in a remote rural village of the Bolivian Chaco, where a high prevalence of CChC is expected.
Methods
A representative sample of 140 healthy volunteers were consecutively enrolled in a rural Bolivian Community in February 2019. Demographic and clinical data were recorded through a standardized questionnaire. All patients performed an ECG by D-Heart, a validated low-cost hospital grade 8 and 12 lead smartphone portable ECG, and a serologic testing by Chagas Stat-Pak® (CSP). RDTs were read locally while ECGs were sent to a Cardiology clinic which transmitted reports within 24 hours from recording.
Results
Among 140 people (54 men, median age of 38 [23–54] years), 98 (70%, 95% CI 62.4–77.6) were positive for T. cruzi infection with CSP, with a linear, age-dependent, increasing trend (p<0.001). Overall, 25 individuals (18%) showed ECG abnormalities, compatible with CD. Prevalence of ECG abnormalities was significantly higher in T. cruzi infected individuals (22 vs 7%, p=0.032). None of the study participants had performed an ECG test prior to enrolment. ECG abnormalities included Bundle Branch Blocks (n=8), 1st Degree Atrioventricular blocks (n=3), rhythm disturbances (n=5), pathologic Q waves (n=2), fragmented QRS (n=5) and low QRS voltage (n=2). Twenty-two patients with a positive CSP testing and possible CD-related ECG abnormalities were recalled from Camiri Community and referred to Gutierrez Hospital for chest X-ray and treatment initiation. At multivariate analysis, positive CSP results (OR 4.75, 95% CI 1.08–20.96, p=0.039) and smoking habit (OR 4.20, 95% CI 1.18–14.92, p=0.027) were confirmed as independent predictors of ECG abnormalities. For 6-day screening for a community of 150 inhabitants, the overall start-up amount was projected to 4.82$/patient and to 8.23$/patient when operative costs (i.e. on-site nurse and healthcare assistant with remote physician on call) were included.
Conclusions
Combined D-Heart® ECG and RDTs screening proved a reliable and effective low-cost strategy to identify patients at high risk of disease and in need of further cardiologic assessment, in a rural, highly endemic environments of the Bolivian Chaco. Onsite and m-Health programmes should be encouraged to support early diagnosis of CD and CChC and provide access to targeted therapy to maximize treatment benefits prior to advanced cardiac involvement.
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- N Maurizi
- University of Florence, Florence, Italy
| | - C Fumagalli
- Careggi University Hospital (AOUC), Cardiomyopathy Unit, Florence, Italy
| | | | | | | | - H Gamboa
- General Hospital, Gutierrez, Bolivia (Plurinational State of)
| | - R Vargas
- General Hospital, Gutierrez, Bolivia (Plurinational State of)
| | | | | | - I Olivotto
- University of Florence, Department of Clinical and Experimental Medicine, Florence, Italy
| |
Collapse
|
14
|
Chambers LM, Esakov E, Braley C, Sangwan N, Vargas R, Rose P, Lathia J, Michener C, Reizes O. Cisplatin chemotherapy impacts the gut microbiome in a preclinical murine model of epithelial ovarian cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
15
|
Chambers LM, Esakov E, Braley C, Sangwan N, Vargas R, Rose P, Lathia J, Michener C, Reizes O. The gut microbiome attenuates epithelial ovarian cancer growth and platinum sensitivity: Novel opportunities for ovarian cancer treatment. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
16
|
Rosenthal VD, Bat-Erdene I, Gupta D, Belkebir S, Rajhans P, Zand F, Myatra SN, Afeef M, Tanzi VL, Muralidharan S, Gurskis V, Al-Abdely HM, El-Kholy A, AlKhawaja SAA, Sen S, Mehta Y, Rai V, Hung NV, Sayed AF, Guerrero-Toapanta FM, Elahi N, Morfin-Otero MDR, Somabutr S, De-Carvalho BM, Magdarao MS, Velinova VA, Quesada-Mora AM, Anguseva T, Ikram A, Aguilar-de-Moros D, Duszynska W, Mejia N, Horhat FG, Belskiy V, Mioljevic V, Di-Silvestre G, Furova K, Gamar-Elanbya MO, Gupta U, Abidi K, Raka L, Guo X, Luque-Torres MT, Jayatilleke K, Ben-Jaballah N, Gikas A, Sandoval-Castillo HR, Trotter A, Valderrama-Beltrán SL, Leblebicioglu H, Riera F, López M, Maurizi D, Desse J, Pérez I, Silva G, Chaparro G, Golschmid D, Cabrera R, Montanini A, Bianchi A, Vimercati J, Rodríguez-del-Valle M, Domínguez C, Saul P, Chediack V, Piastrelini M, Cardena L, Ramasco L, Olivieri M, Gallardo P, Juarez P, Brito M, Botta P, Alvarez G, Benchetrit G, Caridi M, Stagnaro J, Bourlot I, García M, Arregui N, Saeed N, Abdul-Aziz S, ALSayegh S, Humood M, Mohamed-Ali K, Swar S, Magray T, Aguiar-Portela T, Sugette-de-Aguiar T, Serpa-Maia F, Fernandes-Alves-de-Lima L, Teixeira-Josino L, Sampaio-Bezerra M, Furtado-Maia R, Romário-Mendes A, Alves-De-Oliveira A, Vasconcelos-Carneiro A, Anjos-Lima JD, Pinto-Coelho K, Maciel-Canuto M, Rocha-Batista M, Moreira T, Rodrigues-Amarilo N, Lima-de-Barros T, Guimarães KA, Batista C, Santos C, de-Lima-Silva F, Santos-Mota E, Karla L, Ferreira-de-Souza M, Luzia N, de-Oliveira S, Takeda C, Azevedo-Ferreira-Lima D, Faheina J, Coelho-Oliveira L, do-Nascimento S, Machado-Silva V, Bento-Ferreira, Olszewski J, Tenorio M, Silva-Lemos A, Ramos-Feijó C, Cardoso D, Correa-Barbosa M, Assunção-Ponte G, Faheina J, da-Silva-Escudero D, Servolo-Medeiros E, Andrade-Oliveira-Reis M, Kostadinov E, Dicheva V, Petrov M, Guo C, Yu H, Liu T, Song G, Wang C, Cañas-Giraldo L, Marin-Tobar D, Trujillo-Ramirez E, Andrea-Rios P, Álvarez-Moreno C, Linares C, González-Rubio P, Ariza-Ayala B, Gamba-Moreno L, Gualtero-Trujill S, Segura-Sarmiento S, Rodriguez-Pena J, Ortega R, Olarte N, Pardo-Lopez Y, Luis Marino Otela-Baicue A, Vargas-Garcia A, Roncancio E, Gomez-Nieto K, Espinosa-Valencia M, Barahona-Guzman N, Avila-Acosta C, Raigoza-Martinez W, Villamil-Gomez W, Chapeta-Parada E, Mindiola-Rochel A, Corchuelo-Martinez A, Martinez A, Lagares-Guzman A, Rodriguez-Ferrer M, Yepes-Gomez D, Muñoz-Gutierrez G, Arguello-Ruiz A, Zuniga-Chavarria M, Maroto-Vargas L, Valverde-Hernández M, Solano-Chinchilla A, Calvo-Hernandez I, Chavarria-Ugalde O, Tolari G, Rojas-Fermin R, Diaz-Rodriguez C, Huascar S, Ortiz M, Bovera M, Alquinga N, Santacruz G, Jara E, Delgado V, Salgado-Yepez E, Valencia F, Pelaez C, Gonzalez-Flores H, Coello-Gordon E, Picoita F, Arboleda M, Garcia M, Velez J, Valle M, Unigarro L, Figueroa V, Marin K, Caballero-Narvaez H, Bayani V, Ahmed S, Alansary A, Hassan A, Abdel-Halim M, El-Fattah M, Abdelaziz-Yousef R, Hala A, Abdelhady K, Ahmed-Fouad H, Mounir-Agha H, Hamza H, Salah Z, Abdel-Aziz D, Ibrahim S, Helal A, AbdelMassih A, Mahmoud AR, Elawady B, El-sherif R, Fattah-Radwan Y, Abdel-Mawla T, Kamal-Elden N, Kartsonaki M, Rivera D, Mandal S, Mukherjee S, Navaneet P, Padmini B, Sorabjee J, Sakle A, Potdar M, Mane D, Sale H, Abdul-Gaffar M, Kazi M, Chabukswar S, Anju M, Gaikwad D, Harshe A, Blessymole S, Nair P, Khanna D, Chacko F, Rajalakshmi A, Mubarak A, Kharbanda M, Kumar S, Mathur P, Saranya S, Abubakar F, Sampat S, Raut V, Biswas S, Kelkar R, Divatia J, Chakravarthy M, Gokul B, Sukanya R, Pushparaj L, Thejasvini A, Rangaswamy S, Saini N, Bhattacharya C, Das S, Sanyal S, Chaudhury B, Rodrigues C, Khanna G, Dwivedy A, Binu S, Shetty S, Eappen J, Valsa T, Sriram A, Todi S, Bhattacharyya M, Bhakta A, Ramachandran B, Krupanandan R, Sahoo P, Mohanty N, Sahu S, Misra S, Ray B, Pattnaik S, Pillai H, Warrier A, Ranganathan L, Mani A, Rajagopal S, Abraham B, Venkatraman R, Ramakrishnan N, Devaprasad D, Siva K, Divekar D, Satish Kavathekar M, Suryawanshi M, Poojary A, Sheeba J, Patil P, Kukreja S, Varma K, Narayanan S, Sohanlal T, Agarwal A, Agarwal M, Nadimpalli G, Bhamare S, Thorat S, Sarda O, Nadimpalli P, Nirkhiwale S, Gehlot G, Bhattacharya S, Pandya N, Raphel A, Zala D, Mishra S, Patel M, Aggarwal D, Jawadwal B, Pawar N, Kardekar S, Manked A, Tamboli A, Manked A, Khety Z, Singhal T, Shah S, Kothari V, Naik R, Narain R, Sengupta S, Karmakar A, Mishra S, Pati B, Kantroo V, Kansal S, Modi N, Chawla R, Chawla A, Roy I, Mukherjee S, Bej M, Mukherjee P, Baidya S, Durell A, Vadi S, Saseedharan S, Anant P, Edwin J, Sen N, Sandhu K, Pandya N, Sharma S, Sengupta S, Palaniswamy V, Sharma P, Selvaraj M, Saurabh L, Agarwal M, Punia D, Soni D, Misra R, Harsvardhan R, Azim A, Kambam C, Garg A, Ekta S, Lakhe M, Sharma C, Singh G, Kaur A, Singhal S, Chhabra K, Ramakrishnan G, Kamboj H, Pillai S, Rani P, Singla D, Sanaei A, Maghsudi B, Sabetian G, Masjedi M, Shafiee E, Nikandish R, Paydar S, Khalili H, Moradi A, Sadeghi P, Bolandparvaz S, Mubarak S, Makhlouf M, Awwad M, Ayyad O, Shaweesh A, Khader M, Alghazawi A, Hussien N, Alruzzieh M, Mohamed Y, ALazhary M, Abdul Aziz O, Alazmi M, Mendoza J, De Vera P, Rillorta A, de Guzman M, Girvan M, Torres M, Alzahrani N, Alfaraj S, Gopal U, Manuel M, Alshehri R, Lessing L, Alzoman H, Abdrahiem J, Adballah H, Thankachan J, Gomaa H, Asad T, AL-Alawi M, Al-Abdullah N, Demaisip N, Laungayan-Cortez E, Cabato A, Gonzales J, Al Raey M, Al-Darani S, Aziz M, Al-Manea B, Samy E, AlDalaton M, Alaliany M, Alabdely H, Helali N, Sindayen G, Malificio A, Al-Dossari H, Kelany A, Algethami A, Mohamed D, Yanne L, Tan A, Babu S, Abduljabbar S, Al-Zaydani M, Ahmed H, Al Jarie A, Al-Qathani A, Al-Alkami H, AlDalaton M, Alih S, Alaliany M, Gasmin-Aromin R, Balon-Ubalde E, Diab H, Kader N, Hassan-Assiry I, Kelany A, Albeladi E, Aboushoushah S, Qushmaq N, Fernandez J, Hussain W, Rajavel R, Bukhari S, Rushdi H, Turkistani A, Mushtaq J, Bohlega E, Simon S, Damlig E, Elsherbini S, Abraham S, Kaid E, Al-Attas A, Hawsawi G, Hussein B, Esam B, Caminade Y, Santos A, Abdulwahab M, Aldossary A, Al-Suliman S, AlTalib A, Albaghly N, HaqlreMia M, Kaid E, Altowerqi R, Ghalilah K, Alradady M, Al-Qatri A, Chaouali M, Shyrine E, Philipose J, Raees M, AbdulKhalik N, Madco M, Acostan C, Safwat R, Halwani M, Abdul-Aal N, Thomas A, Abdulatif S, Ali-Karrar M, Al-Gosn N, Al-Hindi A, Jaha R, AlQahtani S, Ayugat E, Al-Hussain M, Aldossary A, Al-Suliman S, Al-Talib A, Albaghly N, Haqlre-Mia M, Briones S, Krishnan R, Tabassum K, Alharbi L, Madani A, Al-Hindi A, Al-Gethamy M, Alamri D, Spahija G, Gashi A, Kurian A, George S, Mohamed A, Ramapurath R, Varghese S, Abdo N, Foda-Salama M, Al-Mousa H, Omar A, Salama M, Toleb M, Khamis S, Kanj S, Zahreddine N, Kanafani Z, Kardas T, Ahmadieh R, Hammoud Z, Zeid I, Al-Souheil A, Ayash H, Mahfouz T, Kondratas T, Grinkeviciute D, Kevalas R, Dagys A, Mitrev Z, Bogoevska-Miteva Z, Jankovska K, Guroska S, Petrovska M, Popovska K, Ng C, Hoon Y, Hasan YM, Othman-Jailani M, Hadi-Jamaluddin M, Othman A, Zainol H, Wan-Yusoff W, Gan C, Lum L, Ling C, Aziz F, Zhazali R, Abud-Wahab M, Cheng T, Elghuwael I, Wan-Mat W, Abd-Rahman R, Perez-Gomez H, Kasten-Monges M, Esparza-Ahumada S, Rodriguez-Noriega E, Gonzalez-Diaz E, Mayoral-Pardo D, Cerero-Gudino A, Altuzar-Figueroa M, Perez-Cruz J, Escobar-Vazquez M, Aragon D, Coronado-Magana H, Mijangos-Mendez J, Corona-Jimenez F, Aguirre-Avalos G, Lopez-Mateos A, Martinez-Marroquin M, Montell-Garcia M, Martinez-Martinez A, Leon-Sanchez E, Gomez-Flores G, Ramirez M, Gomez M, Lozano M, Mercado V, Zamudio-Lugo I, Gomez-Gonzalez C, Miranda-Novales M, Villegas-Mota I, Reyes-Garcia C, Ramirez-Morales M, Sanchez-Rivas M, Cureno-Diaz M, Matias-Tellez B, Gonzalez-Martinez J, Juarez-Vargas R, Pastor-Salinas O, Gutierrez-Munoz V, Conde-Mercado J, Bruno-Carrasco G, Manrique M, Monroy-Colin V, Cruz-Rivera Z, Rodriguez-Pacheco J, Cruz N, Hernandez-Chena B, Guido-Ramirez O, Arteaga-Troncoso G, Guerra-Infante F, Lopez-Hurtado M, Caleco JD, Leyva-Medellin E, Salamanca-Meneses A, Cosio-Moran C, Ruiz-Rendon R, Aguilar-Angel L, Sanchez-Vargas M, Mares-Morales R, Fernandez-Alvarez L, Castillo-Cruz B, Gonzalez-Ma M, Zavala-Ramír M, Rivera-Reyna L, del-Moral-Rossete L, Lopez-Rubio C, Valadez-de-Alba M, Bat-Erdene A, Chuluunchimeg K, Baatar O, Batkhuu B, Ariyasuren Z, Bayasgalan G, Baigalmaa S, Uyanga T, Suvderdene P, Enkhtsetseg D, Suvd-Erdene D, Chimedtseye E, Bilguun G, Tuvshinbayar M, Dorj M, Khajidmaa T, Batjargal G, Naranpurev M, Bat-Erdene A, Bolormaa T, Battsetseg T, Batsuren C, Batsaikhan N, Tsolmon B, Saranbaatar A, Natsagnyam P, Nyamdawa O, Madani N, Abouqal R, Zeggwagh A, Berechid K, Dendane T, Koirala A, Giri R, Sainju S, Acharya S, Paul N, Parveen A, Raza A, Nizamuddin S, Sultan F, Imran X, Sajjad R, Khan M, Sana F, Tayyab N, Ahmed A, Zaman G, Khan I, Khurram F, Hussain A, Zahra F, Imtiaz A, Daud N, Sarwar M, Roop Z, Yusuf S, Hanif F, Shumaila X, Zeb J, Ali S, Demas S, Ariff S, Riaz A, Hussain A, Kanaan A, Jeetawi R, Castaño E, Moreno-Castillo L, García-Mayorca E, Prudencio-Leon W, Vivas-Pardo A, Changano-Rodriguez M, Castillo-Bravo L, Aibar-Yaranga K, Marquez-Mondalgo V, Mueras-Quevedo J, Meza-Borja C, Flor J, Fernandez-Camacho Y, Banda-Flores C, Pichilingue-Chagray J, Castaneda-Sabogal A, Caoili J, Mariano M, Maglente R, Santos S, de-Guzman G, Mendoza M, Javellana O, Tajanlangit A, Tapang A, Sg-Buenaflor M, Labro E, Carma R, Dy A, Fortin J, Navoa-Ng J, Cesar J, Bonifacio B, Llames M, Gata H, Tamayo A, Calupit H, Catcho V, Bergosa L, Abuy M, Barteczko-Grajek B, Rojek S, Szczesny A, Domanska M, Lipinska G, Jaroslaw J, Wieczoreka A, Szczykutowicza A, Gawor M, Piwoda M, Rydz-Lutrzykowska J, Grudzinska M, Kolat-Brodecka P, Smiechowicz K, Tamowicz B, Mikstacki A, Grams A, Sobczynski P, Nowicka M, Kretov V, Shalapuda V, Molkov A, Puzanov S, Utkin I, Tchekulaev A, Tulupova V, Vasiljevic S, Nikolic L, Ristic G, Eremija J, Kojovic J, Lekic D, Simic A, Hlinkova S, Lesnakova A, Kadankunnel S, Abdo-Ali M, Pimathai R, Wanitanukool S, Supa N, Prasan P, Luxsuwong M, Khuenkaew Y, Lamngamsupha J, Siriyakorn N, Prasanthai V, Apisarnthanarak A, Borgi A, Bouziri A, Cabadak H, Tuncer G, Bulut C, Hatipoglu C, Sebnem F, Demiroz A, Kaya A, Ersoz G, Kuyucu N, Karacorlu S, Oncul O, Gorenek L, Erdem H, Yildizdas D, Horoz O, Guclu E, Kaya G, Karabay O, Altindis M, Oztoprak N, Sahip Y, Uzun C, Erben N, Usluer G, Ozgunes I, Ozcelik M, Ceyda B, Oral M, Unal N, Cigdem Y, Bayar M, Bermede O, Saygili S, Yesiler I, Memikoglu O, Tekin R, Oncul A, Gunduz A, Ozdemir D, Geyik M, Erdogan S, Aygun C, Dilek A, Esen S, Turgut H, Sungurtekin H, Ugurcan D, Yarar V, Bilir Y, Bayram N, Devrim I, Agin H, Ceylan G, Yasar N, Oruc Y, Ramazanoglu A, Turhan O, Cengiz M, Yalcin A, Dursun O, Gunasan P, Kaya S, Senol G, Kocagoz A, Al-Rahma H, Annamma P, El-Houfi A, Vidal H, Perez F, D-Empaire G, Ruiz Y, Hernandez D, Aponte D, Salinas E, Vidal H, Navarrete N, Vargas R, Sanchez E, Ngo Quy C, Thu T, Nguyet L, Hang P, Hang T, Hanh T, Anh D. International Nosocomial Infection Control Consortium (INICC) report, data summary of 45 countries for 2012-2017: Device-associated module. Am J Infect Control 2020; 48:423-432. [PMID: 31676155 DOI: 10.1016/j.ajic.2019.08.023] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND We report the results of International Nosocomial Infection Control Consortium (INICC) surveillance study from January 2012 to December 2017 in 523 intensive care units (ICUs) in 45 countries from Latin America, Europe, Eastern Mediterranean, Southeast Asia, and Western Pacific. METHODS During the 6-year study period, prospective data from 532,483 ICU patients hospitalized in 242 hospitals, for an aggregate of 2,197,304 patient days, were collected through the INICC Surveillance Online System (ISOS). The Centers for Disease Control and Prevention-National Healthcare Safety Network (CDC-NHSN) definitions for device-associated health care-associated infection (DA-HAI) were applied. RESULTS Although device use in INICC ICUs was similar to that reported from CDC-NHSN ICUs, DA-HAI rates were higher in the INICC ICUs: in the medical-surgical ICUs, the pooled central line-associated bloodstream infection rate was higher (5.05 vs 0.8 per 1,000 central line-days); the ventilator-associated pneumonia rate was also higher (14.1 vs 0.9 per 1,000 ventilator-days,), as well as the rate of catheter-associated urinary tract infection (5.1 vs 1.7 per 1,000 catheter-days). From blood cultures samples, frequencies of resistance, such as of Pseudomonas aeruginosa to piperacillin-tazobactam (33.0% vs 18.3%), were also higher. CONCLUSIONS Despite a significant trend toward the reduction in INICC ICUs, DA-HAI rates are still much higher compared with CDC-NHSN's ICUs representing the developed world. It is INICC's main goal to provide basic and cost-effective resources, through the INICC Surveillance Online System to tackle the burden of DA-HAIs effectively.
Collapse
|
17
|
Balasch JC, Vargas R, Brandts I, Tvarijonaviciute A, Reyes-López F, Tort L, Teles M. Divergent personalities influence the myogenic regulatory genes myostatin, myogenin and ghr2 transcript responses to Vibrio anguillarum vaccination in fish fingerlings (Sparus aurata). Physiol Behav 2019; 212:112697. [PMID: 31622611 DOI: 10.1016/j.physbeh.2019.112697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/22/2019] [Accepted: 09/28/2019] [Indexed: 11/16/2022]
Abstract
Myogenic regulators of muscle development, metabolism and growth differ between fish species in a context-specific manner. Commonly, the analysis of environmental influences on the expression of muscle-related gene regulators in teleosts is based on differences in swimming performance, feeding behaviour and stress-resistance, but the evaluation of behavioural phenotyping of immune and stress-related responsiveness in skeletal muscle is still scarce. Here we challenge proactive and reactive fingerlings of gilthead sea bream (Sparus aurata), one of the most commonly cultured species in the Mediterranean area, with highly pathogenic O1, O2α and O2β serotypes of Vibrio anguillarum, a widespread opportunistic pathogen of marine animals, to analyse skeletal muscle responses to bath vaccination. Transcripts related to inflammation (interleukin 1β, il1β; tumour necrosis factor-α, tnfα; and immunoglobulin M, igm), and muscle metabolism and growth (lipoprotein, lpl; myostatin, mstn-1; myogenin; and growth hormone receptors type I and II, ghr1 and ghr2, respectively) were analysed. Biochemical indicators of muscle metabolism and function (creatine kinase, CK, aspartate aminotransferase, AST; esterase activity, EA; total antioxidant status, TAC and glucose) were also determined. Our results indicate that proactive, but not reactive, fish respond to Vibrio vaccination by increasing the expression levels of mstn-1, myogenin and ghr2 transcripts at short-/medium- term (1 to 3 days' post vaccination). No effect of vaccination was observed in immune indicators or biochemical parameters in either phenotypes, except for elevated levels of EA in reactive fish one-week post vaccination. This suggests that behavioural divergence should be taken into account to evaluate the crosstalk between immune, metabolic and growth processes in muscle of immune-challenged fish.
Collapse
Affiliation(s)
- J C Balasch
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - R Vargas
- Departamento de Zootecnia, Facultad de Ciencias Agropecuarias, Sistema Nacional de Investigación (SNI) SENACYT, Universidad de Panamá, Chiriquí, Panamá
| | - I Brandts
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - A Tvarijonaviciute
- Interdisciplinary Laboratory of Clinical Analysis INTERLAB-UMU, Regional Campus of International Excellence Mare Nostrum, University of Murcia, Espinardo, Murcia 30100, Spain
| | - F Reyes-López
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - L Tort
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - M Teles
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain.
| |
Collapse
|
18
|
Vargas R, Neggers J, Canto R, Rodrigues J, Hild F. Analysis of a castable refractory using the wedge splitting test and cohesive zone model. Ann Ital Chir 2019. [DOI: 10.1016/j.jeurceramsoc.2019.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
19
|
|
20
|
Vargas R, Balasch JC, Brandts I, Reyes-López F, Tort L, Teles M. Variations in the immune and metabolic response of proactive and reactive Sparus aurata under stimulation with Vibrio anguillarum vaccine. Sci Rep 2018; 8:17352. [PMID: 30478379 PMCID: PMC6255872 DOI: 10.1038/s41598-018-35863-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 11/09/2018] [Indexed: 12/17/2022] Open
Abstract
Environmental insults, such as exposure to pathogens, modulate the behavioural coping style of animals to stressors, and repeated exposure to stressful environments may lead to species-specific infection phenotypes. To analyse the influence of stress behavioural phenotypes on immune and metabolic performance, gilthead sea bream (Sparus aurata L.) were first screened for proactive and reactive coping styles. Once characterized, both behavioural phenotypes fish groups were bath vaccinated with bacterin from Vibrio anguillarum, an opportunistic widespread pathogen of fish. Gills and liver were sampled at 0 (control group), 1, 3 and 7 days post-vaccination. Immune-, oxidative stress- and metabolic-related transcripts (il1β, tnfα, igm, gpx1, sod, cat, lpl, ghr1 and ghr2), metabolic endpoints (glucose, cholesterol and triglycerides), hepatic health indicators (aspartate aminotransferase, alanine transaminase and alkaline phosphatase), oxidative stress status (esterase activity, total antioxidant capacity and total oxidative status) and stress biomarkers (cortisol) were determined. Present results indicate that screening for coping styles in the gilthead sea bream segregated the two distinct phenotypes as expected: proactive and reactive. Results also indicate that under bath vaccination proactive fish show high immune response and lower metabolism, whereas reactive fish show low immune and higher metabolic responses.
Collapse
Affiliation(s)
- R Vargas
- Programa Inserción SENACYT-Universidad de Panamá, Extensión Universitaria de Aguadulce, Aguadulce, Panama
| | - J C Balasch
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - I Brandts
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - F Reyes-López
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - L Tort
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - M Teles
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal.
| |
Collapse
|
21
|
Peña C, Vargas R, Hernandez-Fonseca JP, Mosquera J. Cardiac myofibroblast induces decreased expression of major histocompatibility complex class II (Ia) on rat monocyte/macrophages. Tissue Cell 2018; 54:72-79. [PMID: 30309513 DOI: 10.1016/j.tice.2018.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/08/2018] [Accepted: 08/21/2018] [Indexed: 10/28/2022]
Abstract
The up-regulation of HLA antigens is important during heart inflammatory events and myofibroblasts may modulate the expression of this molecule in tissues. To test this possibility, the effect of cardiac myofibroblast:macrophage contact and the production of myofibroblast inhibitor factor(s) on the macrophage HLA (Ia) expression were studied. Listeria monocytogenes-elicited Ia + peritoneal macrophages (high Ia expression) were co-cultured with cardiac myofibroblasts for 3 and 7 days (myofibroblast contact). Proteosa peptone-elicited macrophages (low Ia expression) were cultured for 3 days with interferon gamma (INF-γ) and myofibroblast conditioned medium (FCM). Ia expression was analyzed by immunofluorescence and by radioimmune assay. Myofibroblast contact induced decreased expression of Ia molecule on macrophages (p < 0.001). This was confirmed by the radioimmune analysis in macrophage: myofibroblast co-cultures (p < 0.001). Double staining for Ia and CD14 showed that only CD14 positive cells (macrophages) expressed Ia molecule. FCM was capable of diminishing Ia expression induced by INF-γ on macrophages (p < 0.001). Decreased Ia macrophage expression induced by myofibroblasts could be important in the heart inflammation's resolution, probably involving Ia redistribution on cell: cell contact and myofibroblast inhibitor factor production.
Collapse
Affiliation(s)
- Caterina Peña
- Cátedra de Genética, Escuela de Bioanálisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
| | - Renata Vargas
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
| | - Juan Pablo Hernandez-Fonseca
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
| | - Jesús Mosquera
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
| |
Collapse
|
22
|
Vargas R, Marrugo AG, Pineda J, Meneses J, Romero L. Camera-Projector Calibration Methods with Compensation of Geometric Distortions in Fringe Projection Profilometry: A Comparative Study. ACTA ACUST UNITED AC 2018. [DOI: 10.7149/opa.51.3.50305] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
23
|
Idrogo JM, Vargas R, Sihuincha M. Malaria in HIV patients. Case series in a Peruvian hospital with low endemicity of unstable malaria. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
|
24
|
Vargas R, Vargas C, Costales A, Connor E, Ricci S. Readability of online hysterectomy literature: Too difficult for our patients? Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
25
|
Moulton L, Vargas R, Michener C. Sentinel lymph node mapping in endometrial and cervical cancer: A survey of practices and attitudes in gynecologic oncologists. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
26
|
Connor E, Newlin E, Vargas R, AlHilli M. Non-home discharge is associated with longer interval to adjuvant chemotherapy and increased 90-day mortality in women undergoing surgery for epithelial ovarian cancer. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.03.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
27
|
Vargas R, Costales A, Mahdi H. Robotic-Assisted Laparoscopic Upper Vaginectomy and Rectosigmoid Resection with Primary Reanastamosis. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
28
|
Vargas R, Riquelme B, Fernández J, Videla LA. A combined docosahexaenoic acid–thyroid hormone protocol upregulates rat liver β-Klotho expression and downstream components of FGF21 signaling as a potential novel approach to metabolic stress conditions. Food Funct 2017; 8:3980-3988. [DOI: 10.1039/c7fo00923b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We study the mechanism of how liver preconditioning by a DHA and triiodothyronine combined protocol underlies peroxisome-proliferator activated receptor α (PPARα)-fibroblast growth factor 21 (FGF21) upregulation.
Collapse
Affiliation(s)
- R. Vargas
- Molecular and Clinical Pharmacology Program
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - B. Riquelme
- Molecular and Clinical Pharmacology Program
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - J. Fernández
- Molecular and Clinical Pharmacology Program
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - L. A. Videla
- Molecular and Clinical Pharmacology Program
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| |
Collapse
|
29
|
Abstract
There has been a great interest in endotoxin testing using both Limulus amebocyte lysate (LAL) and the rabbit pyrogen test. It is often difficult to relate the results to the actual biological potency of endotoxin in man. There is a need to have the US Standard Endotoxin (Lot EC-5) tested in human volunteers so that rabbit and human data can be compared.Human male volunteers were divided randomly into 5 groups of 12. Each group was given an intravenous injection of Lot EC-5 at a level of either 0, 2, 4, 8, or 16 endotoxin units (EU) per kg of body weight. The oral temperature was taken and recorded every 15 min for 8 h. The pyrogenic properties of the US Standard Endotoxin in humans over the test period were determined. The results indicated that there is a direct correlation between EU/kg administered and temperature rise. The threshold pyrogenic dose (≥ 1.0°F rise in 50% of volunteers) in this study is approximately 4.1 EU/kg.
Collapse
Affiliation(s)
- H.D. Hochstein
- Division of Product Quality Control, Center for Biologics Evaluation and Research, FDA, Rockville, MD, USA, Clinical Research Center, New Orleans, LA, USA
| | - E.A. Fitzgerald
- Division of Product Quality Control, Center for Biologics Evaluation and Research, FDA, Rockville, MD, USA, Clinical Research Center, New Orleans, LA, USA
| | - F.G. McMahon
- Division of Product Quality Control, Center for Biologics Evaluation and Research, FDA, Rockville, MD, USA, Clinical Research Center, New Orleans, LA, USA
| | - R. Vargas
- Division of Product Quality Control, Center for Biologics Evaluation and Research, FDA, Rockville, MD, USA, Clinical Research Center, New Orleans, LA, USA
| |
Collapse
|
30
|
Mahdi H, Xiaozhen H, Rose P, Vargas R. Disparity in survival between white and African American patients with uterine serous carcinoma: Changes in clinical characteristics, pattern of care and outcome over time from 1988 to 2011. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
31
|
Vargas R, Ryder E, Diez-Ewald M, Mosquera J, Durán A, Valero N, Pedreañez A, Peña C, Fernández E. Increased C-reactive protein and decreased Interleukin-2 content in serum from obese individuals with or without insulin resistance: Associations with leukocyte count and insulin and adiponectin content. Diabetes Metab Syndr 2016; 10:S34-S41. [PMID: 26482966 DOI: 10.1016/j.dsx.2015.09.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 09/27/2015] [Indexed: 02/06/2023]
Abstract
AIMS Chronic inflammation in obesity is associated with co-morbidities such as, hyperglycemia, hypertension and hyperlipidemia. Leukocytes play an important role in this inflammation and C-reactive protein (CRP) and Interleukin-2 (IL-2) can be important effectors during the immune response in obesity; however, the initial inflammatory events in obesity remain unclear. The aim of this study was to determine the circulating levels of CRP, IL-2, insulin and adiponectin, their association and the association with leukocyte count in obese individuals without co-morbidities and with or without insulin resistance (IR). MATERIALS AND METHODS Nineteen obese non-diabetic and 9 lean subjects were studied for serum levels of CRP, IL-2, insulin, adiponectin, lipids, glycated hemoglobin, glycemia, for homeostasis model assessment of insulin resistance (HOMA-IR), arterial pressure and anthropometric parameters, and for leukocyte counts. Neutrophil/lymphocyte ratio (N/L) was calculated using the loge of leukocyte counts. Associations were determined by Pearson's correlation. RESULTS None of the studied groups presented co-morbidities and two groups of obese individuals with normal or high levels of insulin (IR) were found. Increased CRP concentration and decreased IL-2 and adiponectin concentrations in obese were observed. Positive correlation between leukocyte type counts with CRP in obese with IR was found; however, no correlations with IL-2 in obese were observed. Insulin in obese were positively correlated with CRP and negatively correlated with IL-2 in IR obese individuals. Adiponectin in obese was negatively correlated with CRP. CONCLUSION CRP and IL-2 may represent two important effectors in the early inflammatory events in obese individuals without co-morbidities. Adiponectin and insulin may be involved in anti-inflammatory events.
Collapse
Affiliation(s)
- Renata Vargas
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Elena Ryder
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - María Diez-Ewald
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Jesús Mosquera
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
| | - Anyelo Durán
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Nereida Valero
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Adriana Pedreañez
- Cátedra de Inmunología. Escuela de Bionanalisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Caterina Peña
- Cátedra de Genética, Escuela de Bionanalisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Erika Fernández
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| |
Collapse
|
32
|
Ryder E, Pedreañez A, Vargas R, Peña C, Fernandez E, Diez-Ewald M, Mosquera J. Increased proinflammatory markers and lipoperoxidation in obese individuals: Inicial inflammatory events? Diabetes Metab Syndr 2015; 9:280-286. [PMID: 25470639 DOI: 10.1016/j.dsx.2014.04.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Chronic inflammation associated to obesity increases the risk for developing insulin resistance (IR), hyperglycemia, hypertension and hyperlipidemia. The initial factors involved in generating the inflammatory events in the obesity remain unclear. Therefore, this study was aimed to determine inflammatory and oxidative markers in the blood of obese individuals with normal clinical and biochemical parameters and with or without IR. METHODS Nineteen obese non-diabetic and nine lean subjects were studied for serum levels of TNF-α, IL-1β, adiponectin, angiotensin II, insulin, malondialdehyde (MDA) and the expressions of RAGE (advanced glycation end product receptor), AT1 (Ang II receptor), s100A12 protein (RAGE ligand) and nuclear factor-κB (NF-κB) in circulating mononuclear cells (CMC) by available antibodies and commercial kits. CMC were also cultured to determine pro-inflammatory mediators. RESULTS Insulin was increased in obese subjects with IR. Decreased serum adiponectin in obese individuals and increased TNF-α, IL-1β and CMC bearing RAGE, AT1 and s100A12 in obese individuals without IR were found. High values of serum MDA in obese subjects were observed. Similar TNF-content in cultures from obese and controls, increased cellular IL-1β content in cultures from obese individuals without IR and high content of MDA in supernatants from obese individual cultures were observed. CONCLUSIONS The inflammatory events were mainly observed in obese individuals without IR. The absent of inflammatory events and high levels of insulin in obese subjects with IR, suggest a protector role of insulin for developing inflammatory events. These data can represent initial aspects of the chronic inflammation observed in the obesity.
Collapse
Affiliation(s)
- Elena Ryder
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Adriana Pedreañez
- Cátedra de Inmunología, Escuela de Bionanalisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Renata Vargas
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Caterina Peña
- Cátedra de Genética, Escuela de Bionanalisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Erika Fernandez
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - María Diez-Ewald
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Jesús Mosquera
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
| |
Collapse
|
33
|
Bermúdez J, Valero N, Mosquera J, Vargas R, Hernández-Fonseca JP, Quiroz Y, Godoy R. Role of angiotensin II in experimental Venezuelan equine encephalitis in rats. Arch Virol 2015; 160:2395-405. [PMID: 26156105 DOI: 10.1007/s00705-015-2521-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Accepted: 06/30/2015] [Indexed: 11/30/2022]
Abstract
Venezuelan equine encephalitis (VEE) is a viral disease transmitted by mosquitoes. The inflammation induced by the VEE virus is associated with a high mortality rate in mice. Angiotensin II (Ang II), a pro-inflammatory molecule, is produced in the normal rat brain. There is no information about the role of this molecule in the inflammatory events occurring during VEE and the effect of inflammation on the mortality rate in VEE-virus-infected rats. This study was designed to determine the role of Ang II in VEE and to analyze the effect of inflammation on mortality in infected rats. Two groups of rats were studied: 1) Virus-infected animals and controls (n = 60) were treated with losartan (a blocker of the Ang II-AT1 receptor) or with pyrrolidine dithiocarbamate (PDTC, an inhibitor of NF-κB) or left untreated and analyzed for morbidity and mortality. 2) Animals treated using the same protocol (n = 30) were sacrificed at day 4 postinfection and analyzed by immunohistochemistry and histopathology and for cytokine production. Increased expression of Ang II, ICAM-1, ED-1 and cytokines (IL-1α, MCP-1, IL-6 and IL-10) in infected animals was observed. The main histopathology findings were dilated capillaries and capillaries with endothelial detachment. Losartan and PDTC reduced the expression of IL-1α, MCP-1, and IL-10, and the number of dilated capillaries and capillaries with endothelial detachment. Survival analysis showed that 100% mortality was reached earlier in infected rats treated with losartan (day 14) or PDTC (day 11) than in untreated animals (day 19). These findings suggest that Ang II plays a role in VEE and that brain inflammation is protective against viral infection.
Collapse
Affiliation(s)
- John Bermúdez
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, 4001, Zulia, Venezuela
| | - Nereida Valero
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, 4001, Zulia, Venezuela.,Sociedad Venezolana de Microbiología, Caracas, Venezuela
| | - Jesús Mosquera
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, 4001, Zulia, Venezuela.
| | - Renata Vargas
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, 4001, Zulia, Venezuela
| | - Juan P Hernández-Fonseca
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Apartado Postal 23, Maracaibo, 4001, Zulia, Venezuela
| | - Yasmir Quiroz
- Centro de Investigaciones Biomédicas, Instituto Venezolano de Investigaciones Científicas (IVIC), Maracaibo, Venezuela
| | - Rosario Godoy
- Centro de Investigaciones Biológicas, Ciencia y Salud, Universidad del Zulia, Maracaibo, Venezuela
| |
Collapse
|
34
|
Rauh-Hain J, Foley O, Clark R, Vargas R, Hinchcliff E, Esselen K, Horowitz N, del Carmen M. Clinical characteristics and outcomes of patients with stage I epithelial ovarian cancer compared to fallopian tube cancer. Gynecol Oncol 2015. [DOI: 10.1016/j.ygyno.2015.01.272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
35
|
Pedemonte JC, Vargas R, Castillo V, Hodali T, Gutiérrez S, Tapia G, Castillo I, Videla LA, Fernández V. A combined iron and thyroid hormone protocol suppresses ischemia–reperfusion injury in rat livers. RSC Adv 2015. [DOI: 10.1039/c4ra15863f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Liver preconditioning (PC) against ischemia–reperfusion (IR) injury is attained by iron (Fe) or thyroid hormone (T3) administration.
Collapse
Affiliation(s)
- J. C. Pedemonte
- Program of Molecular and Clinical Pharmacology
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - R. Vargas
- Program of Molecular and Clinical Pharmacology
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - V. Castillo
- Program of Molecular and Clinical Pharmacology
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - T. Hodali
- Program of Molecular and Clinical Pharmacology
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - S. Gutiérrez
- Program of Molecular and Clinical Pharmacology
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - G. Tapia
- Program of Molecular and Clinical Pharmacology
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - I. Castillo
- School of Medicine
- Faculty of Medicine
- Catholic University of Talca
- Chile
| | - L. A. Videla
- Program of Molecular and Clinical Pharmacology
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| | - V. Fernández
- Program of Molecular and Clinical Pharmacology
- Institute of Biomedical Sciences
- Faculty of Medicine
- University of Chile
- Santiago
| |
Collapse
|
36
|
Ryder E, Diez-Ewald M, Mosquera J, Fernández E, Pedreañez A, Vargas R, Peña C, Fernández N. Association of obesity with leukocyte count in obese individuals without metabolic syndrome. Diabetes Metab Syndr 2014; 8:197-204. [PMID: 25301008 DOI: 10.1016/j.dsx.2014.09.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
AIMS Inflammation in obesity is associated to insulin resistance (IR), hyperglycemia, hypertension and hyperlipidemia. Leukocytes play an important role in obesity associated inflammation. The initial factors that generate the inflammatory events in the obesity remain unclear. Therefore, the aim of this study was to determine the association of circulating leukocytes with clinical and biochemical parameters in obese individuals with clinical and biochemical parameters in normal range and with or without IR. METHODS Nineteen obese non-diabetic and 9 lean subjects were studied for serum levels of insulin, lipids, glycated hemoglobin, glycemia, for clinical parameters as HOMA-IR, arterial pressure and anthropometric parameters, and for leukocyte counts. Neutrophil/lymphocyte ratio (N/L) was calculated using the loge of leukocyte counts. Association between leukocytes and studied parameters was determined by Pearson's correlation. RESULTS Two groups of obese individuals were observed: with high levels of insulin (with IR) and with normal levels (without IR). Positive correlations were observed between leukocyte and lymphocyte counts with body mass index and HOMA-IR and negative correlation with decreased HDL levels. Lymphocytes correlated with increased levels of insulin. Leukocytes and neutrophils correlated positively with increased visceral fat and liver steatosis. These associations were absent in the obese group without IR. N/L ratio did not show correlations with studied parameters. The leukocyte associations were mainly observed in obese individuals with IR. CONCLUSIONS These data may represent initial leukocyte associations with morbidity features and define two different obese individuals that may evolve to the chronic inflammation observed in the obesity.
Collapse
Affiliation(s)
- Elena Ryder
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela.
| | - María Diez-Ewald
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Jesús Mosquera
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Erika Fernández
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Adriana Pedreañez
- Cátedra de Inmunología, Escuela de Bionanalisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Renata Vargas
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Caterina Peña
- Cátedra de Genética, Escuela de Bionanalisis, Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | - Nelson Fernández
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| |
Collapse
|
37
|
Rey S, Boltana S, Vargas R, Roher N, Mackenzie S. Combining animal personalities with transcriptomics resolves individual variation within a wild-type zebrafish population and identifies underpinning molecular differences in brain function. Mol Ecol 2013; 22:6100-15. [PMID: 24118534 DOI: 10.1111/mec.12556] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 09/23/2013] [Indexed: 01/06/2023]
Abstract
Resolving phenotype variation within a population in response to environmental perturbation is central to understanding biological adaptation. Relating meaningful adaptive changes at the level of the transcriptome requires the identification of processes that have a functional significance for the individual. This remains a major objective towards understanding the complex interactions between environmental demand and an individual's capacity to respond to such demands. The interpretation of such interactions and the significance of biological variation between individuals from the same or different populations remain a difficult and under-addressed question. Here, we provide evidence that variation in gene expression between individuals in a zebrafish population can be partially resolved by a priori screening for animal personality and accounts for >9% of observed variation in the brain transcriptome. Proactive and reactive individuals within a wild-type population exhibit consistent behavioural responses over time and context that relates to underlying differences in regulated gene networks and predicted protein-protein interactions. These differences can be mapped to distinct regions of the brain and provide a foundation towards understanding the coordination of underpinning adaptive molecular events within populations.
Collapse
Affiliation(s)
- S Rey
- Institut de Biotecnologia i Biomedicina, Universitat Autònoma de Barcelona, Barcelona, 08193, Bellaterra, Spain
| | | | | | | | | |
Collapse
|
38
|
Vargas R, Ortega Y, Bozo V, Andrade M, Minuzzi G, Cornejo P, Fernandez V, Videla LA. Thyroid hormone activates rat liver adenosine 5,-monophosphate-activated protein kinase: relation to CaMKKb, TAK1 and LKB1 expression and energy status. J BIOL REG HOMEOS AG 2013; 27:989-999. [PMID: 24382180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AMP-activated protein kinase (AMPK) is a sensor of energy status supporting cellular energy homeostasis that may represent the metabolic basis for 3,3,,5-triiodo-L-thyronine (T3) liver preconditioning. Functionally transient hyperthyroid state induced by T3 (single dose of 0.1 mg/kg) in fed rats led to upregulation of mRNA expression (RT-PCR) and protein phosphorylation (Western blot) of hepatic AMPK at 8 to 36 h after treatment. AMPK Thr 172 phosphorylation induced by T3 is associated with enhanced mRNA expression of the upstream kinases Ca2+ -calmodulin-dependent protein kinase kinase-beta (CaMKKbeta) and transforming growth-factor-beta-activated kinase-1 (TAK1), with increased protein levels of CaMKKbeta and higher TAK1 phosphorylation, without changes in those of the liver kinase B1 (LKB1) signaling pathway. Liver contents of AMP and ADP were augmented by 291 percent and 44 percent by T3 compared to control values (p less than 0.05), respectively, whereas those of ATP decreased by 64% (p less than 0.05), with no significant changes in the total content of adenine nucleotides (AMP + ADP + ATP) at 24 h after T3 administration. Consequently, hepatic ATP/ADP content ratios exhibited 64 percent diminution (p less than 0.05) and those of AMP/ATP increased by 425 percent (p less than 0.05) in T3-treated rats over controls. It is concluded that in vivoT3 administration triggers liver AMPK upregulation in association with significant enhancements in AMPK mRNA expression, AMPK phosphorylation coupled to CaMKKbeta and TAK1 activation, and in AMP/ATP ratios, which may promote enhanced AMPK activity to support T3-induced energy consuming processes such as those of liver preconditioning.
Collapse
Affiliation(s)
- R Vargas
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Y Ortega
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - V Bozo
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - M Andrade
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - G Minuzzi
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - P Cornejo
- School of Medical Technology, Faculty of Medicine, Diego Portales University, Santiago, Chile
| | - V Fernandez
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - L A Videla
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| |
Collapse
|
39
|
Vargas R, Rincón J, Pedreañez A, Viera N, Hernández-Fonseca JP, Peña C, Mosquera J. Role of angiotensin II in the brain inflammatory events during experimental diabetes in rats. Brain Res 2012; 1453:64-76. [PMID: 22464881 DOI: 10.1016/j.brainres.2012.03.021] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 12/27/2011] [Accepted: 03/08/2012] [Indexed: 01/17/2023]
Abstract
Hyperglycemia during diabetes is one of the causes of encephalopathy. However, diabetes causes chronic inflammatory complications and among them is peripheral neuropathy. Since, diabetes is one of the major risk factors for cerebrovascular disease, inflammatory process could take place in central nervous system (CNS). To test that hypothesis, experiments to determine inflammatory events in CNS during streptozotocin-induced diabetes were performed. Diabetes was induced by intravenous injection of streptozotocin (STZ). Brain angiotensin II (Ang II), monocyte/macrophage (ED-1 positive cells), CD8, the intercellular adhesion molecule-1 (ICAM-1), the lymphocyte function-associated antigen-1 (LFA-1) and superoxide anion were determined by hystochemical and immunohistochemical methods. Nitric oxide (NO), malondialdehyde (MDA) and catalase activity were measured in brain homogenates by enzymatic and biochemical methods. This research showed increased expressions of Ang II, ICAM-1, LFA-1 and CD8 positive cells in diverse zones of cerebrum and cerebellum of diabetic rats (week 8). Treatment of diabetic animals with losartan or enalapril reduced the expression of those molecules. Values of lipid peroxidation, nitrite content and superoxide anion expression remained similar to control rats. Only decreased activity of catalase was observed in diabetic animals, but losartan or enalapril failed to modify catalase activity. This study suggests the presence of Ang II-mediated brain inflammatory events in diabetes probably mediated by AT1 receptors.
Collapse
Affiliation(s)
- Renata Vargas
- Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia, Maracaibo, Venezuela
| | | | | | | | | | | | | |
Collapse
|
40
|
Chowell G, Viboud C, Simonsen L, Miller MA, Hurtado J, Soto G, Vargas R, Guzman MA, Ulloa M, Munayco CV. The 1918-1920 influenza pandemic in Peru. Vaccine 2012; 29 Suppl 2:B21-6. [PMID: 21757099 DOI: 10.1016/j.vaccine.2011.02.048] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2010] [Revised: 01/13/2011] [Accepted: 02/15/2011] [Indexed: 11/24/2022]
Abstract
BACKGROUND Increasing our knowledge of past influenza pandemic patterns in different regions of the world is crucial to guide preparedness plans against future influenza pandemics. Here, we undertook extensive archival collection efforts from three representative cities of Peru-Lima in the central coast, Iquitos in the northeastern Amazon region, Ica in the southern coast-to characterize the temporal, age and geographic patterns of the 1918-1920 influenza pandemic in this country. MATERIALS AND METHODS We analyzed historical documents describing the 1918-1920 influenza pandemic in Peru and retrieved individual mortality records from local provincial archives for quantitative analysis. We applied seasonal excess mortality models to daily and monthly respiratory mortality rates for 1917-1920 and quantified transmissibility estimates based on the daily growth rate in respiratory deaths. RESULTS A total of 52,739 individual mortality records were inspected from local provincial archives. We found evidence for an initial mild pandemic wave during July-September 1918 in Lima, identified a synchronized severe pandemic wave of respiratory mortality in all three locations during November 1918-February 1919, and a severe pandemic wave during January 1920-March 1920 in Lima and July-October 1920 in Ica. There was no recrudescent pandemic wave in 1920 in Iquitos. Remarkably, Lima experienced the brunt of the 1918-1920 excess mortality impact during the 1920 recrudescent wave, with all age groups experiencing an increase in all cause excess mortality from 1918-1919 to 1920. Middle age groups experienced the highest excess mortality impact, relative to baseline levels, in the 1918-1919 and 1920 pandemic waves. Cumulative excess mortality rates for the 1918-1920 pandemic period were higher in Iquitos (2.9%) than Lima (1.6%). The mean reproduction number for Lima was estimated in the range 1.3-1.5. CONCLUSIONS We identified synchronized pandemic waves of intense excess respiratory mortality during November 1918-February 1919 in Lima, Iquitos, Ica, followed by asynchronous recrudescent waves in 1920. Cumulative data from quantitative studies of the 1918 influenza pandemic in Latin American settings have confirmed the high mortality impact associated with this pandemic. Further historical studies in lesser studied regions of Latin America, Africa, and Asia are warranted for a full understanding of the global impact of the 1918 pandemic virus.
Collapse
Affiliation(s)
- G Chowell
- Mathematical, Computational & Modeling Sciences Center, School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Vargas R, Thorsteinsson H, Karlsson KAE. Spontaneous neural activity of the anterodorsal lobe and entopeduncular nucleus in adult zebrafish: a putative homologue of hippocampal sharp waves. Behav Brain Res 2011; 229:10-20. [PMID: 22207154 DOI: 10.1016/j.bbr.2011.12.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/12/2011] [Accepted: 12/14/2011] [Indexed: 10/14/2022]
Abstract
Spontaneous neural activity is instrumental in the formation and maintenance of neural circuits that govern behavior. In mammals, spontaneous activity is observed in the spinal cord, brainstem, diencephalon, and neocortex, and has been most extensively studied in the hippocampus. Using whole-brain in vitro recordings we establish the presence of spontaneous activity in two regions of the zebrafish telenchephalon: the entopeduncular nucleus (EN) and the anterodorsal lobe (ADL). The ADL is part of the lateral telencephalic pallium, an area hypothesized to be functionally equivalent to the mammalian hippocampus. In contrast, the EN has been hypothesized to be equivalent to the mammalian basal ganglia. The observed spontaneous activity is GABA modulated, sensitive to glutamate and chloride transporter antagonists, and is abolished by sodium pump blockers; moreover, the spontaneous activity in the ADL is a slow multiband event (∼100 ms) characterized by an embedded fast ripple wave (∼150-180 Hz). Thus, the spontaneous activity in the ADL shares physiological features of hippocampal sharp waves in rodents. We suggest that this spontaneous activity is important for the formation and maintenance of neural circuits in zebrafish and argue that applying techniques unique to the fish may open novel routes to understand the function of spontaneous activity in mammals.
Collapse
Affiliation(s)
- R Vargas
- Department of Biomedical Engineering, School of Science and Engineering, Reykjavik University, Reykjavik, Iceland
| | | | | |
Collapse
|
42
|
Pedreañez A, Arcaya JL, Carrizo E, Rincón J, Viera N, Peña C, Vargas R, Mosquera J. Experimental depression induces renal oxidative stress in rats. Physiol Behav 2011; 104:1002-9. [PMID: 21741982 DOI: 10.1016/j.physbeh.2011.06.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 06/18/2011] [Accepted: 06/26/2011] [Indexed: 12/18/2022]
Abstract
Depression has been associated to inflammatory and oxidative events. Previous report has shown renal oxidative stress in patients with depression. In order to analyze if depressive status is related to renal oxidative and inflammatory events, Sprague Dawley rats were submitted to forced swimming test (FST) and the renal oxidative metabolism, monocyte-macrophage infiltration and Angiotensin II (Ang II) expression were determined. Rats were submitted to FST daily (30 min) for 15 days. Motor activity was analyzed before FST. Kidney sections were homogenized to measure nitric oxide (NO), malondialdehyde (MDA), reduced glutathione (GSH) and catalase activity by enzymatic and biochemical methods. Renal frozen sections were studied for superoxide anion (O2-), monocyte/macrophage infiltration and Ang II expression by histochemical and immunofluorescence methods. In addition, three groups of FST rats were treated with losartan, sertraline or water for 18 days with further renal O2-analysis. In the FST group, struggle time, motor activity, food intake and body weight gain were found decreased. Increased number of glomerular, interstitial and tubular O2-positive cells was observed in FST rats. High renal content of nitrite/nitrate (NO), MDA and decreased amount of GSH were found in FST rats. Values of renal ED-1 or Ang II positive cells in FST rats remained similar to controls; however, AT1 receptor blocking (losartan) and sertraline reduced both depressive-like behavior and renal O2-expression. These data suggests that depression-like behavior in rats is involved in kidney oxidative stress probably mediated by AT1 receptors.
Collapse
Affiliation(s)
- Adriana Pedreañez
- Catedra de Inmunologia, Escuela de Bioanalisis, Facultad de Medicina, Universidad del Zulia, Venezuela
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Vargas R, Jóhannesdóttir IT, Sigurgeirsson B, Thorsteinsson H, Karlsson KAE. The zebrafish brain in research and teaching: a simple in vivo and in vitro model for the study of spontaneous neural activity. Adv Physiol Educ 2011; 35:188-196. [PMID: 21652504 DOI: 10.1152/advan.00099.2010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Recently, the zebrafish (Danio rerio) has been established as a key animal model in neuroscience. Behavioral, genetic, and immunohistochemical techniques have been used to describe the connectivity of diverse neural circuits. However, few studies have used zebrafish to understand the function of cerebral structures or to study neural circuits. Information about the techniques used to obtain a workable preparation is not readily available. Here, we describe a complete protocol for obtaining in vitro and in vivo zebrafish brain preparations. In addition, we performed extracellular recordings in the whole brain, brain slices, and immobilized nonanesthetized larval zebrafish to evaluate the viability of the tissue. Each type of preparation can be used to detect spontaneous activity, to determine patterns of activity in specific brain areas with unknown functions, or to assess the functional roles of different neuronal groups during brain development in zebrafish. The technique described offers a guide that will provide innovative and broad opportunities to beginner students and researchers who are interested in the functional analysis of neuronal activity, plasticity, and neural development in the zebrafish brain.
Collapse
Affiliation(s)
- R Vargas
- Department of Biomedical Engineering, Reykjavik University, Iceland.
| | | | | | | | | |
Collapse
|
44
|
Smonskey M, Starostik P, Deeb G, Demock K, Vargas R, Lal D, Sait SN, Wetzler M, Wang ES. Association of IDH1 mutations in normal karyotype acute myeloid leukemia samples with higher HIF-1α and VEGF-A expression. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.6530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
45
|
Massin P, Bonnin M, Paratte S, Vargas R, Piriou P, Deschamps G. Total knee replacement in post-traumatic arthritic knees with limitation of flexion. Orthop Traumatol Surg Res 2011; 97:28-33. [PMID: 21167802 DOI: 10.1016/j.otsr.2010.06.016] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Revised: 05/23/2010] [Accepted: 06/29/2010] [Indexed: 02/02/2023]
Abstract
UNLABELLED The objective of this study is to investigate the results of total knee arthroplasty (TKA) in traumatic osteoarthritis cases with flexion restriction and to describe the technical details of their management. A multicentre series comprising 40 patients with limitation of flexion less than or equal to 90° was selected from 152 cases of post-traumatic knee arthritis with malunion. We hypothesized that the arthroplasty complication rate would be higher than in other etiologies of limitation of flexion and would require specific management strategies. PATIENTS In 23 cases, intra-articular malunion was present, in 15 cases extra-articular, and in two cases combined. The mean flexion was 72±23°, extension was 6±6°, and total range of motion (ROM) 66±23°. Eight cases of flexion restriction were severe (flexion<50°), six intermediate (flexion, 50-70°) and 26 moderate. In 14 cases, the anterior tibial tuberosity was osteotomized (43% intra-articular malunion and 6% extra-articular malunion). Five simultaneous realignment osteotomies were necessary. In severe cases of limitation of flexion, five extensive quadriceps releases were associated. RESULTS Four mobilizations under general anesthesia were performed. In the cases of severe limitation of flexion, we noted three avulsions of the patellar tendon, two cases of cutaneous necrosis, one of which was associated with deep infection, and another case of deep infection. In the cases of moderate limitation of flexion, we noted one case of nonunion of the tibial tuberosity and two cases were revised for loosening, one aseptic and the other septic. With a mean follow-up of 5±4 years, the mean flexion was 99.4°±23 for a gain of 26.7±20°. The final flexion and the gain in flexion were correlated with preoperative flexion (r=0.62 and r=-0.47, respectively). The final amplitude was 99±27° for a gain of 33±21°. The flexion gains were comparable for both types of malunion, whether they were intra- or extra-articular. DISCUSSION Arthroplasty provided a substantial gain in flexion. Osteotomy of the tibial tuberosity and the realignment osteotomies should be performed if necessary, with no risk of compromising the result. Superior gains can be sought in severe cases of limitation of flexion by releasing the extensor apparatus, in absence of cutaneous scar tissue retractions and recent infection. LEVEL OF EVIDENCE Level 4. Noncomparative retrospective study.
Collapse
Affiliation(s)
- P Massin
- Department of Orthopaedic Surgery and Traumatology, Bichat-Claude-Bernard Teaching Hospital center, Paris-Diderot University, 46, rue Henri-Huchard, 75877 Paris cedex 18, France.
| | | | | | | | | | | | | |
Collapse
|
46
|
Vargas R, Cifuentes F, Morales M. Role of presynaptic and postsynaptic IP3-dependent intracellular calcium release in long-term potentiation in sympathetic ganglion of the rat. Synapse 2010; 65:441-8. [DOI: 10.1002/syn.20862] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Accepted: 08/16/2010] [Indexed: 01/21/2023]
|
47
|
Bahn M, Reichstein M, Davidson EA, Grünzweig J, Jung M, Carbone MS, Epron D, Misson L, Nouvellon Y, Roupsard O, Savage K, Trumbore SE, Gimeno C, Yuste JC, Tang J, Vargas R, Janssens IA. Soil respiration at mean annual temperature predicts annual total across vegetation types and biomes. ACTA ACUST UNITED AC 2010; 7:2147-2157. [PMID: 23293656 DOI: 10.5194/bg-7-2147-2010] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Soil respiration (SR) constitutes the largest flux of CO(2) from terrestrial ecosystems to the atmosphere. However, there still exist considerable uncertainties as to its actual magnitude, as well as its spatial and interannual variability. Based on a reanalysis and synthesis of 80 site-years for 57 forests, plantations, savannas, shrublands and grasslands from boreal to tropical climates we present evidence that total annual SR is closely related to SR at mean annual soil temperature (SR(MAT)), irrespective of the type of ecosystem and biome. This is theoretically expected for non water-limited ecosystems within most of the globally occurring range of annual temperature variability and sensitivity (Q(10)). We further show that for seasonally dry sites where annual precipitation (P) is lower than potential evapotranspiration (PET), annual SR can be predicted from wet season SR(MAT) corrected for a factor related to P/PET. Our finding indicates that it can be sufficient to measure SR(MAT) for obtaining a well constrained estimate of its annual total. This should substantially increase our capacity for assessing the spatial distribution of soil CO(2) emissions across ecosystems, landscapes and regions, and thereby contribute to improving the spatial resolution of a major component of the global carbon cycle.
Collapse
Affiliation(s)
- M Bahn
- Institute of Ecology, University of Innsbruck, Innsbruck, Austria
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Caleffi M, Caleffi M, Ribeiro R, Vargas R, Gomes A, Rutta R. Breast Cancer Early Detection Awareness and Its Predictors in a Brazilian Nationwide Sample. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-3079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: In contrast to developed countries, where breast cancer (BC) mortality has dropped in the past decade, BC associated deaths are still rising in Brazil. The absence of better structured screening programs and the lack of population awareness about the disease are among the factors for the high BC mortality in the country. Emphasizing the importance of mammography is a key factor in increasing the rate of early diagnosis and, therefore, the chances of cure. In this study, we aimed to quantify the population's recognition of mammography as an important exam, and evaluated factors associated with the awareness of its importance. Methods: A cross-sectional study was conducted with 1,344 women between 40 and 65 years old in 17 state capitals in Brazil. Women answered the following question: “In your opinion, what are the means that a person has to discover that she has breast cancer?” If a woman cited mammography in her answer, she was considered as aware in our analyses. Women also responded a questionnaire that included socio-economic status, educational level, healthy lifestyle behaviors, insurance plan coverage, and family history of BC, in order to identify possible predictors of greater awareness. The relationship between predictors and awareness was evaluated through univariate and multivariate modified Poisson regression. Results: Mean age was 51 ± 7 years; 53.5% of women were between 40 and 49 years old. 30% of the sample was from the higher and 18% from the lower social class. 12% had a positive BC family history, 75% used to visit their gynecologist at least once a year, 35% have a private health insurance, and 21% were current smokers (former smokers = 23%). Only 48.5% cited mammography as a tool to discover breast cancer. In the univariate analysis, younger age, higher level of physical activity, no current or past smoking habit, private health insurance, family history of BC, regular attendance to a gynecologist, and higher income, educational level and social class were all associated with higher awareness (p<0.05 for all variables). In the multivariate model, which included all the former variables except for income and education (which had high collinearity with social class), the relative risks for greater awareness were the following: higher social class = 1.30 (1.05 – 1.61), BC family history = 1.11 (0.96 – 1.29), annual visit to gynecologist = 1.43 (1.18 – 1.75), no history of smoking = 1.17 (1.01 – 1.37), frequent physical activity = 1.10 (0.985 – 1.24), age < 50 = 1.19 (1.06 – 1.33), private insurance = 1.20 (1.06 – 1.36). Conclusions: In this sample, with nationwide distribution, the awareness about the importance of mammography was low. Higher socio-economic status and healthy lifestyles were associated with a higher awareness of the exam's importance. The greater mammography awareness observed in younger women might reflect a higher general interest in its own health in this group, as well as its regular contact with reproductive health services.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 3079.
Collapse
|
49
|
Vargas R, Shrivastava V, Leitzel K, Ali SM, Carney W, Hamer P, Brown-Shimer S, Linnartz R, Mietlowski B, Lipton A. Pretreatment serum TIMP-1 levels and survival in advanced pancreatic cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e15568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e15568 Background: Tissue inhibitor of metalloproteinase-1 (TIMP-1) has been shown to have diverse multifunctional roles in tumorigenesis such as inhibition of the catalytic activity of MMPs, growth promotion, inhibition of apoptosis and regulation of angiogenesis. Elevated TIMP-1 has been associated with an unfavorable prognosis in many cancers including breast, colorectal, gastric, head and neck, lung, and lymphoma. VEGF is also intimately associated with angiogenesis. Methods: This study determined serum TIMP-1 and VEGF levels in a phase III clinical trial of 157 patients with advanced pancreatic cancer. ELISAs for TIMP-1 and VEGF (Oncogene Science / Siemens HealthCare Diagnostics, Cambridge, MA) were employed to measure pretreatment serum TIMP-1 levels in 157 pancreatic cancer patients enrolled in a randomized, double-blind, placebo-controlled phase III trial. Statistical analysis was performed with TIMP-1 and VEGF on a continuous and cutpoint basis. Serum biomarker levels were then correlated with patient survival using Kaplan -Meier life table analysis. Results: Serum TIMP-1 levels in 157 pancreatic patients had a median of 409.9 ng/mL, and ranged from 144 to 1078 ng/mL. Patients with higher serum TIMP-1 had significantly shorter survival on a continuous basis (p = 0.001), on quartile analysis (p = 0.004), and on a dichotomous cutpoint analysis of upper 25 % vs lower 75 % (median survival 101 days vs. 197 days)(p< 0.001). Serum VEGF level was not associated with survival on a continuous (p = 0.57) or cutpoint analysis (p= 0.93). Conclusions: Pancreatic cancer patients with higher serum TIMP-1 levels had significantly shorter overall survival. Serum TIMP-1 level should be evaluated as a predictive factor for response to novel treatment regimens. [Table: see text]
Collapse
Affiliation(s)
- R. Vargas
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - V. Shrivastava
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - K. Leitzel
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - S. M. Ali
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - W. Carney
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - P. Hamer
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - S. Brown-Shimer
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - R. Linnartz
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - B. Mietlowski
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| | - A. Lipton
- Penn State College of Medicine, Hershey, PA; Penn Sate University/Lebanon VA Medical Center, Lebanon, PA; Oncogene Science/Siemens HealthCare Diagnostics, Cambridge, MA; Novartis Pharmaceuticals Corporation, East Hanover, NJ
| |
Collapse
|
50
|
Oh WK, Leitzel K, Jacobus S, Vargas R, Regan MM, Hamer PJ, Carney WP, Ali SM, Kantoff PW, Lipton A. Elevated plasma TIMP-1 and survival in metastatic castration-resistant prostate cancer patients. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.11077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|