1
|
Arce M, Rodriguez-Peña M, Espinoza-Arrue J, Godoy RA, Reyes M, Kajikawa T, Greenwell-Wild T, Hajishengallis G, Abusleme L, Moutsopoulos N, Dutzan N. Increased STAT3 Activation in Periodontitis Drives Inflammatory Bone Loss. J Dent Res 2023; 102:1366-1375. [PMID: 37697911 DOI: 10.1177/00220345231192381] [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] [Subscribe] [Scholar Register] [Indexed: 09/13/2023] Open
Abstract
Periodontitis is one of the most prevalent human inflammatory diseases. It is characterized by periodontal tissue destruction, progressively driven by the host response. In this regard, cytokines associated with tissue destruction, such as interleukin (IL)-6 and IL-23, use a common signaling pathway mediated by STAT3. This transcription factor is also needed for IL-17A production, a key mediator in periodontitis pathogenesis. Although several studies have reported increased activation of STAT3 in experimental periodontitis, a detailed characterization of STAT3 activation in human gingival tissues and its involvement in alveolar bone loss has yet to be explored. Using a cross-sectional study design, we detected increased proportions of pSTAT3-positive cells during periodontitis compared with health, particularly in epithelial cells and T cells. Other cell types of hematopoietic and nonhematopoietic origin also display STAT3 activation in gingival tissues. We detected increased STAT3 phosphorylation and expression of STAT3-related genes during experimental periodontitis. Next, we evaluated the role of STAT3 in alveolar bone destruction using a mouse model of STAT3 loss of function (mut-Stat3 mice). Compared with controls, mut-Stat3 mice had reduced alveolar bone loss following ligature-induced periodontitis. We also evaluated pharmacologic inhibition of STAT3 in ligature-induced periodontitis. Like mut-Stat3 mice, mice treated with STAT3 small-molecule inhibitor had reduced bone loss compared with controls. Our results demonstrate that STAT3 activation is increased in epithelial and T cells during periodontitis and indicate a pathogenic role of STAT3 in inflammatory alveolar bone loss.
Collapse
Affiliation(s)
- M Arce
- Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile
- Laboratory of Oral Microbiology and Immunology, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - M Rodriguez-Peña
- Laboratory of Oral Microbiology and Immunology, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - J Espinoza-Arrue
- Laboratory of Oral Microbiology and Immunology, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - R A Godoy
- Laboratory of Oral Microbiology and Immunology, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - M Reyes
- Department of Pathology and Oral Medicine, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - T Kajikawa
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - T Greenwell-Wild
- Oral Immunity and Infection Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - G Hajishengallis
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - L Abusleme
- Laboratory of Oral Microbiology and Immunology, Faculty of Dentistry, University of Chile, Santiago, Chile
- Department of Pathology and Oral Medicine, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - N Moutsopoulos
- Oral Immunity and Infection Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - N Dutzan
- Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile
- Laboratory of Oral Microbiology and Immunology, Faculty of Dentistry, University of Chile, Santiago, Chile
| |
Collapse
|
2
|
Kyathanahally SP, Hardeman T, Reyes M, Merz E, Bulas T, Brun P, Pomati F, Baity-Jesi M. Author Correction: Ensembles of data-efficient vision transformers as a new paradigm for automated classification in ecology. Sci Rep 2023; 13:6243. [PMID: 37069189 PMCID: PMC10110596 DOI: 10.1038/s41598-023-32258-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023] Open
Affiliation(s)
| | - T Hardeman
- Eawag, Überlandstrasse 133, 8600, Dübendorf, Switzerland
| | - M Reyes
- Eawag, Überlandstrasse 133, 8600, Dübendorf, Switzerland
| | - E Merz
- Eawag, Überlandstrasse 133, 8600, Dübendorf, Switzerland
| | - T Bulas
- Eawag, Überlandstrasse 133, 8600, Dübendorf, Switzerland
| | - P Brun
- WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
| | - F Pomati
- Eawag, Überlandstrasse 133, 8600, Dübendorf, Switzerland
| | - M Baity-Jesi
- Eawag, Überlandstrasse 133, 8600, Dübendorf, Switzerland.
| |
Collapse
|
3
|
Verdugo-Vásquez N, Orrego R, Gutiérrez-Gamboa G, Reyes M, Zurita Silva A, Balbontín C, Gaete N, Salazar-Parra C. Trends and climatic variability in the Chilean viticultural production zones: three decades of climatic data (1985-2015). OENO ONE 2023. [DOI: 10.20870/oeno-one.2023.57.1.7151] [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] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Chile is characterized by offering high-quality vitivinicultural products and for its renowned viticultural valleys. At today, Chile has been considered vulnerable to climate change, which has brought a major concern to the national vitiviniculture. This research aimed to analyze the trends and climatic variability of the Chilean viticulture over three decades (1985-2015), evaluating meteorological, bioclimatic and risk indices in forty-seven stations. Meteorological data indicated that the warmest zone was Atacama, while the coldest was Aysén. The rainiest region was Austral, while the driest was Arica y Parinacota. Growing-season indices (GST, GDD and HI) showed that Central Valley was warmer than Arica y Parinacota, whereas, this latter, presented higher sum of spring temperatures (SONMean and SONMax). Atacama presented the highest risk for T>30°C, whereas Central and South Valleys for T>35°C. The highest frost risk was in Aysén, while the lowest in Arica y Parinacota. In general, Min T decreased by 0.33 ºC, while Max T increased by 0.83ºC. None of the trends for PP presented statistical significance. GST, GDD, HI, BEDD, SONMean and SONMax increased by 0.58ºC, 118.29 heat units, 140.57 heat units, 79.72 heat units, 8.42 heat units and 45.17 heat units, respectively, while CI decreased by 0.19ºC. Some stations that presented negative trend on CI coincided to the highest Max T. Locations in Coquimbo and Aconcagua valleys changed from intermediate to warm climate. Locations from Coquimbo and Central valleys changed from warm to hot climate. Quilaco changed from cool to warm climate, while Osorno changed from without classification to cool climate. PCA analysis reported that meteorological variables were related to the distance of the site to the Pacific Ocean. This information is of importance for the national industry and may allow to define mitigations strategies facing global warming.
Collapse
|
4
|
Otero L, Zetola N, Campos M, Zunt J, Bayer A, Curisinche M, Ochoa T, Reyes M, Vega V, Van der Stuyft P, Sterling TR. Isoniazid preventive therapy completion in children under 5 years old who are contacts of tuberculosis cases in Lima, Peru: study protocol for an open-label, cluster-randomized superiority trial. Trials 2023; 24:54. [PMID: 36694242 PMCID: PMC9871424 DOI: 10.1186/s13063-022-07062-6] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/30/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Children < 5 years old in contact with TB cases are at high risk for developing severe and fatal forms of TB. Contact investigation, BCG vaccination, and isoniazid preventive therapy (IPT) are the most effective strategies to prevent TB among children. However, the implementation of IPT faces challenges at several stages of the cascade of care of TB infection among children, particularly those less than 5 years old. In Peru, a large proportion of children do not complete IPT, which highlights the need to design effective interventions that enhance preventive therapy adherence and completion. Although the body of evidence for such interventions has grown, interventions in medium TB incidence settings are lacking. This study aims to test the effectiveness, acceptability, and feasibility of an intervention package to increase information and motivation to complete IPT among children < 5 who have been prescribed IPT. METHODS An open-label, cluster-randomized superiority trial will be conducted in two districts in South Lima, Peru. Thirty health facilities will be randomized as clusters, 10 to the intervention and 20 to control (standard of care). We aim to recruit 10 children from different households in each cluster. Participants will be caretakers of children aged < 5 years old who initiated IPT. The intervention consists of educational material, and short message services (SMS) reminders and motivators. The primary outcomes will be the proportion of children who picked up > 90% of the 24 weeks of IPT (22 pick-ups) and the proportion of children who picked up the 24 weeks of IPT. The standard of care is a weekly pick-up with monthly check-ups in a health facility. Feasibility and acceptability of the intervention will be assessed through an interview with the caretaker. DISCUSSION Unfavorable outcomes of TB in young children, high effectiveness of IPT, and low rates of IPT completion highlight the need to enhance adherence and completion of IPT among children < 5 years old. Testing of a context-adapted intervention is needed to improve IPT completion rates and therefore TB prevention in young children. TRIAL REGISTRATION ClinicalTrials.gov NCT03881228. Registered on March 19, 2019.
Collapse
Affiliation(s)
- L. Otero
- grid.11100.310000 0001 0673 9488Facultad de Medicina, Universidad Peruana Cayetano Heredia, Lima, Peru ,grid.11100.310000 0001 0673 9488Instituto de Medicina Tropical Alexander Von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru ,grid.11505.300000 0001 2153 5088Unit of General Epidemiology and Disease Control, Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium
| | - N. Zetola
- grid.410427.40000 0001 2284 9329Division of Pulmonary and Critical Care, Augusta University, Augusta, GA USA
| | - M. Campos
- grid.11100.310000 0001 0673 9488Facultad de Medicina, Universidad Peruana Cayetano Heredia, Lima, Peru ,grid.11100.310000 0001 0673 9488Facultad de Ciencias, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - J. Zunt
- grid.34477.330000000122986657Department of Neurology, University of Washington School of Medicine, WA Seattle, USA
| | - A. Bayer
- grid.11100.310000 0001 0673 9488Facultad de Salud Pública, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - M. Curisinche
- grid.419858.90000 0004 0371 3700Dirección de Prevención Y Control de Tuberculosis, Ministerio de Salud, Lima, Peru ,grid.419228.40000 0004 0636 549XCentro Nacional de Salud Pública, Instituto Nacional de Salud, Lima, Peru
| | - T. Ochoa
- grid.11100.310000 0001 0673 9488Facultad de Medicina, Universidad Peruana Cayetano Heredia, Lima, Peru ,grid.11100.310000 0001 0673 9488Instituto de Medicina Tropical Alexander Von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - M. Reyes
- grid.11100.310000 0001 0673 9488Instituto de Medicina Tropical Alexander Von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - V. Vega
- grid.11100.310000 0001 0673 9488Instituto de Medicina Tropical Alexander Von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - P. Van der Stuyft
- grid.5342.00000 0001 2069 7798Department of Public Health, Faculty of Medicine, Ghent University, Ghent, Belgium
| | - TR. Sterling
- grid.152326.10000 0001 2264 7217Vanderbilt University School of Medicine, Nashville, TN USA
| |
Collapse
|
5
|
Salazar-Parra C, Macias J, Reyes M, Peppi C. Efecto de la temperatura y la poda tardía sobre la fisiología y calidad del cv. Merlot en el Valle Central de Chile. BIO Web Conf 2023. [DOI: 10.1051/bioconf/20235601033] [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] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
La Poda tardía (PT) ha surgido como una herramienta que podría apoyar la adaptación de la viticultura frente al cambio climático, pudiendo retrasar la maduración y reducir el desequilibro en la madurez entre los azucares, ácidos y compuestos fenológicos, producidos por el incremento de temperatura (T). El objetivo del estudio fue evaluar la PT en cv. Merlot del Valle Central de Chile, en 2 condiciones de temperatura: Ambiente; Elevada y 3 momentos de poda: Invierno; Brotación; Brotes 2-4 cm. Se realizó un seguimiento fenológico, determinación de intercambio gaseoso y crecimiento. Al momento de la cosecha se valoró la calidad de la fruta (brix, acidez, pH) y la concentración de antocianinas.
El aumento de T produjo un incremento de la temperatura de hojas por sobre 30ºC, además de caídas en la AN, gs y WUEF, y disminuyo significativamente el rendimiento por planta. Los tratamientos en T elevada presentaron una cosecha adelantada y menor concentración de antocianinas, independiente de la poda, no logrando contrarrestar los efectos de la T. En condiciones de T actual la poda fue capaz de retrasar la cosecha en al menos una semana, sumado a un incremento del 10% de la concentración de antocianinas en piel.
Collapse
|
6
|
Reyes M, Salazar-Parra C. Vitivinicultura patrimonial frente al cambio climático, desafíos y oportunidades. BIO Web Conf 2023. [DOI: 10.1051/bioconf/20235603016] [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] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
La vitivinicultura tradicional de secano en Chile se basa principalmente en la variedad País, siendo posible encontrar viñedos centenarios en diversas zonas. Si bien en los inicios de la viticultura nacional esta variedad fue la predominante, en la actualidad se encuentra relegada a los sectores de secano, es cultivada casi exclusivamente por pequeños productores y se destina en su mayoría a la elaboración de vinos a granel, obteniéndose bajos precios tanto por su uva como por su vino.
El análisis de datos climáticos, en las zonas de producción de la variedad País, muestran que, en las últimas seis décadas, la precipitación ha disminuido en más de un 20%, se han incrementado los días con temperaturas sobre 30 y 35°C y se han intensificado las heladas primaverales. Al evaluar el efecto del alza de temperatura, mediante la utilización de un sistema de estructuras de policarbonato que permiten un calentamiento pasivo, se observaron los efectos sobre el crecimiento de brotes y bayas, la fisiología de la planta y la calidad de uvas. En general los efectos observados frente a un alza de temperatura son menos severos que en otras variedades. Aunque esto puede explicarse desde distintas miradas, se reafirma la rusticidad y aptitud de esta variedad para las condiciones de secano.
Collapse
|
7
|
Kyathanahally SP, Hardeman T, Reyes M, Merz E, Bulas T, Brun P, Pomati F, Baity-Jesi M. Ensembles of data-efficient vision transformers as a new paradigm for automated classification in ecology. Sci Rep 2022; 12:18590. [PMID: 36329061 PMCID: PMC9633651 DOI: 10.1038/s41598-022-21910-0] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 10/05/2022] [Indexed: 11/05/2022] Open
Abstract
Monitoring biodiversity is paramount to manage and protect natural resources. Collecting images of organisms over large temporal or spatial scales is a promising practice to monitor the biodiversity of natural ecosystems, providing large amounts of data with minimal interference with the environment. Deep learning models are currently used to automate classification of organisms into taxonomic units. However, imprecision in these classifiers introduces a measurement noise that is difficult to control and can significantly hinder the analysis and interpretation of data. We overcome this limitation through ensembles of Data-efficient image Transformers (DeiTs), which not only are easy to train and implement, but also significantly outperform the previous state of the art (SOTA). We validate our results on ten ecological imaging datasets of diverse origin, ranging from plankton to birds. On all the datasets, we achieve a new SOTA, with a reduction of the error with respect to the previous SOTA ranging from 29.35% to 100.00%, and often achieving performances very close to perfect classification. Ensembles of DeiTs perform better not because of superior single-model performances but rather due to smaller overlaps in the predictions by independent models and lower top-1 probabilities. This increases the benefit of ensembling, especially when using geometric averages to combine individual learners. While we only test our approach on biodiversity image datasets, our approach is generic and can be applied to any kind of images.
Collapse
Affiliation(s)
- S. P. Kyathanahally
- grid.418656.80000 0001 1551 0562Eawag, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - T. Hardeman
- grid.418656.80000 0001 1551 0562Eawag, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - M. Reyes
- grid.418656.80000 0001 1551 0562Eawag, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - E. Merz
- grid.418656.80000 0001 1551 0562Eawag, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - T. Bulas
- grid.418656.80000 0001 1551 0562Eawag, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - P. Brun
- grid.419754.a0000 0001 2259 5533WSL, Zürcherstrasse 111, 8903 Birmensdorf, Switzerland
| | - F. Pomati
- grid.418656.80000 0001 1551 0562Eawag, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - M. Baity-Jesi
- grid.418656.80000 0001 1551 0562Eawag, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| |
Collapse
|
8
|
Ramos-Zaldívar H, Reyes-Perdomo K, Espinoza-Moreno N, Dox-Cruz E, Urbina T, Caballero A, Dominguez E, Calix S, Monterroso-Reyes J, Vásquez E, Ortiz T, Rodríguez-Machado H, Solis M, Silva I, Galeano M, Alvarado A, Medina A, Guerrero-Díaz L, Jiménez-Faraj J, Santos C, Arita W, Montufar D, Sabillón J, Sorto M, Navarro X, Palomo-Bermúdez V, Andino H, Guzman S, Reyes M, Pazf E, Enamorado J, Sagastume Y, Rivera A, Sarmiento C, Pineda X, Puerto V, Landaverde J, Reyes S, Perdomo I, Rivera J, Girón W, Sabillón K, Leiva P, Toro K, Montes-Gambarelli J, Flores C, Salas-Huenuleo E, Andia M. SAFETY AND EFFICACY OF THYMIC PEPTIDES IN THE TREATMENT OF HOSPITALIZED COVID-19 PATIENTS IN HONDURAS. Georgian Med News 2022:99-105. [PMID: 36427851] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Coronavirus disease 2019 (Covid-19) active cases continue to demand the development of safe and effective treatments. This is the first clinical trial to evaluate the safety and efficacy of oral thymic peptides. ; We conducted a nonrandomized phase 2 trial with a historic control group to evaluate the safety and efficacy of a daily 250-mg oral dose of thymic peptides in the treatment of hospitalized Covid-19 patients. Comparisons based on standard care from registry data were performed after propensity score matching. The primary outcomes were survival, time to recovery, and number of participants with treatment-related adverse events or side effects by day 20. ; A total of 44 patients were analyzed in this study: 22 in the thymic peptide group and 22 in the standard care group. There were no deaths in the intervention group compared to 24% mortality in standard care by day 20 (log-rank P=0.02). Kaplan-Meier analysis showed a significantly shorter time to recovery by day 20 in the thymic peptide group than in the standard care group (median, 6 days vs. 12 days; hazard ratio for recovery, 2.75 [95% confidence interval, 1.34 to 5.62]; log-rank P=0.002). No side effects or adverse events were reported. ; In patients hospitalized with Covid-19, the use of thymic peptides resulted in no side effects, adverse events, or deaths by day 20. Compared with the registry data, a significantly shorter time to recovery and mortality reduction were measured.
Collapse
Affiliation(s)
- H Ramos-Zaldívar
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras; 2Doctoral Program in Medical Sciences, Faculty of Medicine, Pontificia Universidad Católica de Chile
| | - K Reyes-Perdomo
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras; 3Psiquiatría Infantil y del Adolescente, Hospital Barros Luco Trudeau, Facultad de Ciencias Médicas, Universidad de Santiago de Chile
| | - N Espinoza-Moreno
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - E Dox-Cruz
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - Th Urbina
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - A Caballero
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - E Dominguez
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - S Calix
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - J Monterroso-Reyes
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - E Vásquez
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - T Ortiz
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - H Rodríguez-Machado
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - M Solis
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - I Silva
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - M Galeano
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - A Alvarado
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - A Medina
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - L Guerrero-Díaz
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - J Jiménez-Faraj
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras; 4Hospital Civil de Guadalajara Juan I. Menchaca, México
| | - C Santos
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras; 5Hospital del Valle, San Pedro Sula, Honduras
| | - W Arita
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - D Montufar
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - J Sabillón
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - M Sorto
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - X Navarro
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - V Palomo-Bermúdez
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras; 5Hospital del Valle, San Pedro Sula, Honduras
| | - H Andino
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - S Guzman
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - M Reyes
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - E Pazf
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - J Enamorado
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - Y Sagastume
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - A Rivera
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - C Sarmiento
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - X Pineda
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - V Puerto
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - J Landaverde
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - S Reyes
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - I Perdomo
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - J Rivera
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - W Girón
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - K Sabillón
- 6Hospital Santa Bárbara Integrado, Santa Bárbara, Honduras
| | - P Leiva
- 7Triaje de Santa Bárbara, Secretaría de Salud de Honduras
| | - K Toro
- 7Triaje de Santa Bárbara, Secretaría de Salud de Honduras
| | - J Montes-Gambarelli
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras
| | - C Flores
- 1Grupo de Investigación Médica de la Universidad Católica de Honduras, (GIMUNICAH), Faculty of Medicine, Universidad Católica de Honduras; 8Laboratorio de Biología Molecular de San Pedro Sula, Secretaría de Salud de Honduras
| | | | - M Andia
- 10Biomedical Imaging Center Radiology Department, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; 11Millennium Nucleus in Cardiovascular Magnetic Resonance, Santiago, Chile
| |
Collapse
|
9
|
Perez-Morales J, Miller J, Tolbert H, Pathak R, Reyes M, Gray J, Simmons V, Quinn G, Schabath M. EP01.03-008 Lung Cancer Screening Patients Experiences and Satisfaction: Quantitative and Qualitative Findings From a Survey Study. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.290] [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: 11/25/2022]
|
10
|
Barranco Garcia J, Abler D, Reyes M, Voung D, Guckenberger M, Tanadini-Lang S, Depeursinge A. PO-1766 Deep learning classifier for MGMT promoter methylation status in glioblastoma cancer. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03730-6] [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: 11/27/2022]
|
11
|
Abstract
Calciphylaxis is a rare and potentially fatal small-vessel occlusive disease in which the tunica media becomes calcified, endothelial cells proliferate, and the tunica intima becomes thickened and fibrotic. Calciphylaxis typically occurs in the setting of end-stage renal disease with secondary hyperparathyroidism and elevated calcium-phosphorus product. The estimated incidence of calciphylaxis in dialysis or kidney transplant patients is 1 to 4%; however, the incidence of non-uremic calciphylaxis is unknown. We assessed postmarketing adverse event reports to further characterize cases of calciphylaxis associated with teriparatide. We searched for cases of teriparatide-associated calciphylaxis in the literature (EMBASE, PubMed) and those reported to FDA, including the FDA Adverse Event Reporting System, through March 31, 2021. We included calciphylaxis cases following teriparatide exposure of < 2 years. Twelve cases described teriparatide-associated calciphylaxis. The median age was 81 (range 47-86) years. Eleven cases reported confirmatory biopsy and/or imaging. The median time-to-onset of calciphylaxis following teriparatide initiation was 3.5 (range 1-20) months. Three cases reported hospitalization, of which one resulted in death due to progression of the lesions. All cases had multiple risk factors (mean (SD), 4.5 (1.0)) including concomitant medications associated with calciphylaxis (12), female sex (11), and/or underlying autoimmune disease or other inflammatory disorder (10). We believe that exposure to teriparatide, coupled with underlying risk factors, may have triggered new-onset calciphylaxis. Expedited diagnosis and management by a clinician are important because calciphylaxis may be life-threatening and early intervention may improve outcomes.
Collapse
Affiliation(s)
- J Kim
- Division of Pharmacovigilance, Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, MD, 20993, USA.
| | - K Konkel
- Division of Pharmacovigilance, Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, MD, 20993, USA
| | - S C Jones
- Division of Pharmacovigilance, Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, MD, 20993, USA
| | - M Reyes
- Division of Pharmacovigilance, Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, MD, 20993, USA
| | - L McCulley
- Division of Pharmacovigilance, Office of Surveillance and Epidemiology, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, MD, 20993, USA
| |
Collapse
|
12
|
Grinbergs D, Chilian J, Hahn C, Reyes M, Isla M, France A, Børve J. Silverleaf (Chondrostereum purpureum) Effects on Japanese Plum (Prunus salicina). Plants 2021; 10:plants10122777. [PMID: 34961248 PMCID: PMC8709163 DOI: 10.3390/plants10122777] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/14/2021] [Accepted: 09/14/2021] [Indexed: 11/29/2022]
Abstract
Silverleaf is an important fungal trunk disease of fruit crops, such as Japanese plum (Prunus salicina). It is known that infection by Chondrostereum purpureum results in discolored wood, “silvered” foliage, and tree decline. However, effects on fruit yield and quality have not been assessed. Therefore, the objectives of this study were to determine C. purpureum pathogenicity on P. salicina and the effects on physiology, fruit yield, and quality, in Chile, in 2019 and 2020. Wood samples from affected plum trees were collected in the Chilean plum productive area. Fungi were isolated by plating wood sections from the necrosis margin on culture media. Morphological and molecular characteristics of the isolates corresponded to C. purpureum (98%). Representative isolates were inoculated from healthy plum plants and after 65-d incubation, wood necrotic lesions and silver leaves were visible. Fungi were reisolated, fulfilling Koch’s postulates. To determine Silverleaf effects, xylem water potential and fruit yield and quality were measured in healthy and Silverleaf-diseased plum trees ‘Angeleno’. Water potential was altered in diseased trees, and fruit yield was reduced by 51% (2019) and by 41% (2020) compared to fruit from healthy trees. Moreover, cover-colour, equatorial-diameter, and weight were reduced, and fruit were softer, failing to meet the criteria to be properly commercialized and exported to demanding markets.
Collapse
Affiliation(s)
- Daina Grinbergs
- Laboratorio de Fitopatología de Frutales INIA Quilamapu, Instituto de Investigaciones Agropecuarias, INIA, Av. Vicente Méndez 515, Chillán 3780000, Chile; (C.H.); (M.R.); (M.I.); (A.F.)
- Correspondence: (D.G.); (J.C.); Tel.: +56-42-2206-832 (D.G. & J.C.)
| | - Javier Chilian
- Laboratorio de Fitopatología de Frutales INIA Quilamapu, Instituto de Investigaciones Agropecuarias, INIA, Av. Vicente Méndez 515, Chillán 3780000, Chile; (C.H.); (M.R.); (M.I.); (A.F.)
- Correspondence: (D.G.); (J.C.); Tel.: +56-42-2206-832 (D.G. & J.C.)
| | - Carla Hahn
- Laboratorio de Fitopatología de Frutales INIA Quilamapu, Instituto de Investigaciones Agropecuarias, INIA, Av. Vicente Méndez 515, Chillán 3780000, Chile; (C.H.); (M.R.); (M.I.); (A.F.)
| | - Marisol Reyes
- Laboratorio de Fitopatología de Frutales INIA Quilamapu, Instituto de Investigaciones Agropecuarias, INIA, Av. Vicente Méndez 515, Chillán 3780000, Chile; (C.H.); (M.R.); (M.I.); (A.F.)
| | - Mariana Isla
- Laboratorio de Fitopatología de Frutales INIA Quilamapu, Instituto de Investigaciones Agropecuarias, INIA, Av. Vicente Méndez 515, Chillán 3780000, Chile; (C.H.); (M.R.); (M.I.); (A.F.)
| | - Andrés France
- Laboratorio de Fitopatología de Frutales INIA Quilamapu, Instituto de Investigaciones Agropecuarias, INIA, Av. Vicente Méndez 515, Chillán 3780000, Chile; (C.H.); (M.R.); (M.I.); (A.F.)
| | - Jorunn Børve
- Norwegian Institute of Bioeconomy Research, NIBIO, P.O. Box 115, 1431 Ås, Norway;
| |
Collapse
|
13
|
Lozano Chinga M, Reyes M, Harrison B, Ballas Z. M161 CAPILLARY LEAK SYNDROME IN AN EXTREME PREMATURE INFANT: NEW INSIGHTS TO PHYSIOPATHOLOGY AND TREATMENT. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.302] [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: 10/19/2022]
|
14
|
Goñi FJ, Peña-Oyarzún D, Torres VA, Reyes M. Expression profile of components of the β-catenin destruction complex in oral dysplasia and oral cancer. Med Oral Patol Oral Cir Bucal 2021; 26:e729-e737. [PMID: 34564680 PMCID: PMC8601647 DOI: 10.4317/medoral.24528] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 09/13/2021] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Oral cancer represents the sixth most common cancer in the world and is associated with 40-50% survival at 5 years. Within oral malignancies, oral squamous cell carcinoma (OSCC) is commonly preceded by potentially malignant lesions, which, according to histopathological criteria, are referred to as oral dysplasia and their diagnosis are associated with higher rates of malignant transformation towards cancer. We recently reported that aberrant activation of the Wnt/β‑catenin pathway is due to overexpression of Wnt ligands in oral dysplasia. However, the expression of other regulators of this pathway, namely components of the β-catenin destruction complex has not been explored in oral dysplasia. MATERIAL AND METHODS Using immunohistochemical analyses, we evaluated nuclear expression of β‑catenin and its association with Wnt3a and Wnt5a. Likewise, components of the β-catenin destruction complex, including Adenomatous Polyposis Coli (APC), Axin and Glycogen Synthase Kinase 3 beta (GSK-3β) were also evaluated in oral dysplasia and OSCC biopsies. RESULTS We found that moderate and severe dysplasia samples, which harbored increased expression of nuclear β‑catenin, depicted augmented cytoplasmic expression of GSK‑3β, Axin and APC, in comparison with OSCC samples. Also, GSK-3β was found nuclear in mild dysplasia and OSCC samples, when compared with other study samples. CONCLUSIONS Cytoplasmic levels of components of the β-catenin destruction complex are increased in oral dysplasia and might be responsible of augmented nuclear β‑catenin.
Collapse
Affiliation(s)
- F-J Goñi
- Department of Pathology and Oral Medicine Faculty of Dentistry, Universidad de Chile Calle Sergio Livingstone 943, Independencia, Santiago, Chile
| | | | | | | |
Collapse
|
15
|
Grinbergs D, Chilian J, Padilla N, Reyes M, France A, Moya-Elizondo E, Gerding M. Endophytic Microorganisms Associated with Reversion of Silverleaf Disease Symptoms in Apple. Phytopathology 2021; 111:1541-1550. [PMID: 33591814 DOI: 10.1094/phyto-12-20-0548-r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Silverleaf is caused by the fungus Chondrostereum purpureum, which produces wood necrosis and foliar silvering in woody plants. Field observations and studies in apple have shown the reversion of foliar symptoms. Because plants were clones and received identical agronomical management, it was hypothesized that reversion is driven by endophytic microbiota. Thus, the objectives of this study were to compare healthy, diseased, and reverted plants with respect to their physiology, endophytic microbial communities, antagonistic ability of their endophytes against C. purpureum, and defense genes expression. Water potential, stomatal conductance, chlorophyll content, and fluorescence were measured. Endophytic bacterial and fungal DNA were analyzed by denaturing gradient gel electrophoresis, and community richness and similarity were calculated. Wood cores were collected and bacterial and fungal endophytes were isolated and confronted with C. purpureum-virulent strains in dual-culture assays. Defense genes expression was measured by quantitative PCR. Results indicated that there were no differences in physiological parameters between healthy and reverted plants, except for fluorescence, and both type of plants differed from diseased ones. Bacterial and fungal community richness was similar in healthy and reverted plants and higher than in diseased ones. Endophytes from reverted and healthy plants showed high antagonism to C. purpureum. Furthermore, nonexpressor of pathogenesis-related gene 1 expression was upregulated in reverted plants, whereas phenylalanine ammonia lyase and polygalacturonase-inhibiting protein genes showed higher values in diseased plants. Overall, physiological, molecular, and microbial characteristics were similar between healthy and reverted plants, and both differed from diseased ones. Therefore, reversion of symptoms is associated with changes in the endophytic microbiota, which seems to be a promising source of biological control agents against C. purpureum.
Collapse
Affiliation(s)
- D Grinbergs
- Instituto de Investigaciones Agropecuarias, INIA, Chillán, Chile
- Universidad de Concepción, Chillán, Chile
| | - J Chilian
- Instituto de Investigaciones Agropecuarias, INIA, Chillán, Chile
| | - N Padilla
- Universidad de Concepción, Chillán, Chile
| | - M Reyes
- Instituto de Investigaciones Agropecuarias, INIA, Chillán, Chile
| | - A France
- Instituto de Investigaciones Agropecuarias, INIA, Chillán, Chile
| | | | - M Gerding
- Universidad de Concepción, Chillán, Chile
| |
Collapse
|
16
|
Schweitzer C, Garrido M, Paredes R, Stoore C, Reyes M, Bologna-Molina R, Fernández A, Hernández Rios M. Localization of interleukin-6 signaling complex in epithelialized apical lesions of endodontic origin. Clin Oral Investig 2021; 25:4075-4083. [PMID: 33411000 DOI: 10.1007/s00784-020-03738-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 07/02/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVES We aimed to determine the immunolocalization patterns of the interleukin (IL)-6 signaling complex in epithelialized and non-epithelialized apical lesions of endodontic origin (ALEOs). MATERIALS AND METHODS Epithelialized (n = 8) and non-epithelialized (n = 7) ALEOs were obtained from teeth with indication of extraction in patients with clinical diagnosis of apical periodontitis. All tissues were subjected to routine processing for histopathologic examination and primary antibodies for IL-6, IL-6 receptor (R), and glycoprotein (gp)-130 were used for immunohistochemistry and double immunofluorescence co-localization. RESULTS IL-6, IL-6R, and gp-130 were immunolocalized in endothelial cells and mononuclear leukocytes in a diffuse pattern within the connective tissue of epithelialized and non-epithelialized ALEOs. In the epithelialized lesions, two different patterns were identified: IL-6 signaling complex was localized within the proliferating epithelium in a diffuse intracellular pattern and in a cell membrane localization pattern within the mature epithelial lining, showing a decreased intensity towards the surface layers. CONCLUSIONS IL-6, IL-6R, and gp-130 localized to mononuclear inflammatory cells, vascular endothelial cells, and immature proliferating epithelia in a diffuse pattern and in mature lining epithelia in a localized cell membrane pattern, supporting a role for epithelial proliferation during cyst formation. Additional cell membrane co-localization of IL-6 receptor complex suggests classic signaling involvement in addition to trans-signaling.
Collapse
Affiliation(s)
- C Schweitzer
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
| | - M Garrido
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
| | - R Paredes
- Faculty of Veterinary Medicine, Faculty of Life Sciences, Universidad Andrés Bello, Av. República 440, 8320000, Santiago, Chile
| | - C Stoore
- Faculty of Veterinary Medicine, Faculty of Life Sciences, Universidad Andrés Bello, Av. República 440, 8320000, Santiago, Chile
| | - M Reyes
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
| | - R Bologna-Molina
- Faculty of Dentistry, Universidad de la República, General las Heras 1925, 11600, Montevideo, Uruguay
| | - A Fernández
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
- Faculty of Dentistry, Universidad Andrés Bello, Av. República 440, 8320000, Santiago, Chile
| | - Marcela Hernández Rios
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile.
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile.
| |
Collapse
|
17
|
Araya C, Corvalán C, Cediel G, Taillie LS, Reyes M. Ultra-Processed Food Consumption Among Chilean Preschoolers Is Associated With Diets Promoting Non-communicable Diseases. Front Nutr 2021; 8:601526. [PMID: 33842518 PMCID: PMC8032866 DOI: 10.3389/fnut.2021.601526] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 03/03/2021] [Indexed: 12/12/2022] Open
Abstract
Introduction: In adults, intake of ultra-processed foods (UPF) has been linked with poor diets and adverse health outcomes. In young children, evidence is scarcer but suggests a higher dietary share of UPF. Objective: To quantify the intake of UPF and its association with the nutrient composition of the diet in a sample of preschoolers in Santiago, Chile. Methods: Cross-sectional analysis of dietary data (24-h recall survey) from 960 preschoolers. Foods were categorized according to the extent and purpose of processing (NOVA classification) and participants were classified in quintiles of UPF intake. We explored the associations between UPF intake (% of the total energy) and intake of nutrients of concern for non-communicable disease development (carbohydrates, total sugars, fats, and sodium), and nutrients for promotion (proteins, polyunsaturated fats, iron, calcium, zinc, vitamins A, D, C, and B12, folate, and fiber) using multivariate regression after controlling for covariates. Results: UPF constituted 49% of the total energy intake. Preschoolers with higher intake consumed more energy, saturated and monounsaturated fats, carbohydrates, total sugars, and vitamin D, compared to preschoolers in the lowest quintile of UPF intake. In contrast, UPF intake was negatively associated with the consumption of proteins, polyunsaturated fats, fiber, zinc, vitamin A, and sodium (p < 0.05). Conclusion: In Chilean preschoolers, UPF was the primary source of energy intake. The dietary share of UPF was associated with the nutrient composition of the diet. Improving children's diet should consider not only promoting healthy food consumption but also limiting UPF consumption.
Collapse
Affiliation(s)
- C Araya
- Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile.,Escuela de Nutrición y Dietética, Facultad de Salud, Universidad Santo Tomás, Santiago, Chile
| | - C Corvalán
- Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - G Cediel
- Department of Nutrition, University of São Paulo, São Paulo, Brazil.,School of Nutrition and Dietetics, University of Antioquia, Medellín, Colombia
| | - L S Taillie
- Department of Nutrition, Carolina Population Center, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States
| | - M Reyes
- Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| |
Collapse
|
18
|
Jayaweera J, Reyes M. Antimicrobial use for pediatric acute respiratory tract infections and the subsequent emergence of multi-drug resistant bacteria. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.290] [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] Open
|
19
|
Zancheta Ricardo C, Corvalan C, Tallie L, Quitral V, Reyes M. Non-nutritive sweeteners in the food supply: changes after the first phase of the Chilean Food Law. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.576] [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: 11/15/2022] Open
Abstract
Abstract
Background
In June 2016, Chile implemented the Food Labeling and Advertising Law, which includes mandatory front-of-package warning labels in products with high content of sugars and other key nutrients. We evaluated whether the non-nutritive sweeteners (NNS) use increased among foods/beverages 7-8 months after implementation of the law.
Methods
We obtained data from packaged foods/beverages available in 6 major supermarkets and 3 candy distributions in Santiago, Chile, in January 2015/16 (T0) and January 2017 (T1). We included products with market share ≥1% of their food groups, with added sugar, salt or fat (i.e. products subject to regulation) and/or with NNS from 7 food groups: beverages, breakfast cereals, candies, sweet spreads, desserts, yogurts, and milk-based drinks, in cross-sectional (T0: N = 1,809; T1: N = 1,478) and longitudinal (i.e. same product collected in both periods; N = 999) samples. We compared the frequencies applying Chi-square and McNemar tests.
Results
In the cross-sectional analysis, there was no significant change in the frequency of NNS use neither considering the overall sample or each food group. Across all groups, about 40% of products presented at least one NNS in both periods, with the highest prevalence among beverages (T0:77%; T1:80%, p = 0.314) and yogurts (T0:63%; T1:68%, p = 0.312). In the longitudinal sample, the frequency of NNS use increased from 38% in T0 to 44% in T1 (p < 0.001). Changes were observed in milk-based drinks (T0:50%; T1:67%, p = 0.008); beverages (T0:72%; T1:83%, p < 0.001); desserts (T0:14%; T1:23%, p < 0.001); and yogurts (T0:60%; T1:63%, p = 0.046).
Conclusions
Our results suggest increased NNS use in the longitudinal subsample after the implementation of the law; however, the overall frequency in the food supply remained the same, which could be explained either by changes in the food supply or sampling differences between the periods. Further analyses must explore the impact of these changes in NNS consumption.
Key messages
Regulations aimed to reduce food sugar content could impact the food NNS content. Monitoring the use of NNS in the food supply and its impact on NNS consumption is important in the current policy scenario.
Collapse
Affiliation(s)
| | - C Corvalan
- Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile
| | - L Tallie
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, USA
| | - V Quitral
- Escuela de Nutrición y Dietética, Universidad Santo Tomas, Santiago, Chile
| | - M Reyes
- Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile
| |
Collapse
|
20
|
Abstract
In reports among mostly, US, white, preschool and young school-age children eating in the absence of hunger (EAH) has been positively related to adiposity, with some support for a sex-specific relationship. There is considerable interest in EAH and obesity in populations at risk for obesity-like populations of countries that have undergone rapid development. We assessed adolescents (n = 679) after an overnight fast with anthropometry and an EAH paradigm beginning with an ad lib pre-load meal. Participants reported satisfaction and perceived ability to eat more food, and then proceeded to a room with freely available snacks where they were permitted to eat ad lib for 20 min. Adolescents were 16.8 years old, 52% male, and 14% with obesity. Median preload meal kcal consumption was 602 (IQR 474-746). Additional calories were consumed at the EAH snack by 47.6%. Among those who ate snack, 155 additional calories were consumed (IQR 78-283). Adolescents with obesity had 0.61 (95% CI 0.37-0.99) reduced odds of eating at the EAH snack adolescents without obesity. Adolescents with obesity were also less likely to eat above the median total calories compared to adolescents without obesity (OR = 0.59, 95% CI 0.36-0.96). A sex by obesity interaction term was not significant in any model. Obesity was related to eating behavior in our sample of Chilean adolescents, however not in the direction we hypothesized. Adolescents with obesity were less likely to eat additional calories in the EAH paradigm and ate fewer total calories compared to adolescents without obesity.
Collapse
Affiliation(s)
- E Blanco
- Division of Child Development and Community Health, Department of Pediatrics, University of California, San Diego, 9500 Gilman Drive, MC 0927, La Jolla, CA, 92093-0927, USA. .,Public Health PhD Program, University of Chile, Avenida Independencia 939, Independencia, Región Metropolitana, Chile.
| | - M Reyes
- Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Avendia El Líbano 5524, Macul, Región Metropolitana, Chile
| | - R Burrows
- Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Avendia El Líbano 5524, Macul, Región Metropolitana, Chile
| | - S Gahagan
- Division of Child Development and Community Health, Department of Pediatrics, University of California, San Diego, 9500 Gilman Drive, MC 0927, La Jolla, CA, 92093-0927, USA.,Center for Human Growth and Development, Division of Child Behavioral Health, University of Michigan, 300 N. Ingalls Street, Ann Arbor, MI, 48109-5406, USA
| |
Collapse
|
21
|
Licuanan WY, Robles R, Reyes M. Status and recent trends in coral reefs of the Philippines. Mar Pollut Bull 2019; 142:544-550. [PMID: 31232337 DOI: 10.1016/j.marpolbul.2019.04.013] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 04/01/2019] [Accepted: 04/03/2019] [Indexed: 06/09/2023]
Abstract
Concern about the condition of Philippine coral reefs has prompted a recent reassessment of the status of the nation's reefs, the results of which are reported here. This paper presents the largest updated dataset on Philippine coral cover and generic diversity. The dataset was obtained from equally-sized sampling stations on fore-reef slopes of fringing reefs in six biogeographic regions using identical methods. A total of 206 stations were surveyed from 2014 to 2017, and another 101 stations were monitored from 2015 to 2018. The weighted average hard coral cover (HCC) was 22.8% (±1.2 SE) and coral generic diversity averaged 14.5 (±0.5 SE). Both were highest in the fully-formed reefs of the Sulu Sea biogeographic region and lowest in the eastern Philippines. Comparisons of findings with those of previous assessments show the continued decline in coral cover over a larger time scale, with the loss of about a third of the reef corals over the last decade. However, no consistent changes were evident in the 101 monitoring stations from 2015 to 2018 despite the global coral bleaching event. An expanded monitoring program, not just one-off assessments, is recommended to improve reef management in the Philippines.
Collapse
Affiliation(s)
- W Y Licuanan
- Br. Alfred Shields FSC Ocean Research Center, De La Salle University, 2401 Taft Avenue, Manila 1004, Philippines; Biology Department, College of Science, De La Salle University, 2401 Taft Avenue, Manila 1004, Philippines.
| | - R Robles
- Br. Alfred Shields FSC Ocean Research Center, De La Salle University, 2401 Taft Avenue, Manila 1004, Philippines; Mathematics and Statistics Department, College of Science, De La Salle University, 2401 Taft Avenue, Manila 1004, Philippines
| | - M Reyes
- Br. Alfred Shields FSC Ocean Research Center, De La Salle University, 2401 Taft Avenue, Manila 1004, Philippines; The Graduate School, University of Santo Tomas, Thomas Aquinas Research Complex, España Boulevard, Manila 1008, Philippines
| |
Collapse
|
22
|
Burdon FJ, Munz NA, Reyes M, Focks A, Joss A, Räsänen K, Altermatt F, Eggen RIL, Stamm C. Agriculture versus wastewater pollution as drivers of macroinvertebrate community structure in streams. Sci Total Environ 2019; 659:1256-1265. [PMID: 31096338 DOI: 10.1016/j.scitotenv.2018.12.372] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 09/28/2018] [Revised: 12/21/2018] [Accepted: 12/24/2018] [Indexed: 05/17/2023]
Abstract
Water pollution is ubiquitous globally, yet how the effects of pollutants propagate through natural ecosystems remains poorly understood. This is because the interactive effects of multiple stressors are generally hard to predict. Agriculture and municipal wastewater treatment plants (WWTPs) are often major sources of contaminants for streams, but their relative importance and the role of different pollutants (e.g. nutrients or pesticides) are largely unknown. Using a 'real world experiment' with sampling locations up- and downstream of WWTPs, we studied how effluent discharges affected water quality and macroinvertebrate communities in 23 Swiss streams across a broad land-use gradient. Variation partitioning of community composition revealed that overall water quality explained approximately 30% of community variability, whereby nutrients and pesticides each independently explained 10% and 2%, respectively. Excluding oligochaetes (which were highly abundant downstream of the WWTPs) from the analyses, resulted in a relatively stronger influence (3%) of pesticides on the macroinvertebrate community composition, whereas nutrients had no influence. Generally, the macroinvertebrate community composition downstream of the WWTPs strongly reflected the upstream conditions, likely due to a combination of efficient treatment processes, environmental filtering and organismal dispersal. Wastewater impacts were most prominently by the Saprobic index, whereas the SPEAR index (a trait-based macroinvertebrate metrics reflecting sensitivity to pesticides) revealed a strong impact of arable cropping but only a weak impact of wastewater. Overall, our results indicate that agriculture can have a stronger impact on headwater stream macroinvertebrate communities than discharges from WWTP. Yet, effects of wastewater-born micropollutants were clearly quantifiable among all other influence factors. Improving our ability to further quantify the impacts of micropollutants requires highly-resolved water quality and taxonomic data with adequate spatial and temporal sampling. These improvements would help to better account for the underlying causal pathways that drive observed biological responses, such as episodic contaminant peaks and dispersal-related processes.
Collapse
Affiliation(s)
- F J Burdon
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland; Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - N A Munz
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland; ETH Zürich, Institute of Biogeochemistry and Pollutant Dynamics, Zürich, Switzerland
| | - M Reyes
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - A Focks
- Alterra, Wageningen University and Research Centre, Wageningen, the Netherlands
| | - A Joss
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - K Räsänen
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
| | - F Altermatt
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland; University of Zurich, Department of Evolutionary Biology and Environmental Studies, Zurich, Switzerland
| | - R I L Eggen
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland; ETH Zürich, Institute of Biogeochemistry and Pollutant Dynamics, Zürich, Switzerland
| | - C Stamm
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.
| |
Collapse
|
23
|
Dunford EK, Ni Mhurchu C, Vandevijvere S, Swinburn B, Kušar A, Pravst I, Tolentino-Mayo L, Reyes M, L’Abbe M, Neal BC. The comparative healthiness of 367,500 packaged food and beverages from 12 countries. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- E K Dunford
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, USA
| | - C Ni Mhurchu
- Food Policy Division, The George Institute for Global Health, University of New South Wales, Sydney, Australia
| | - S Vandevijvere
- National Institute for Health Innovation, University of Auckland, Auckland, New Zealand
| | - B Swinburn
- School of Population Health, University of Auckland, Auckland, New Zealand
| | - A Kušar
- Nutrition Institute, Ljubljana, Slovenia
| | - I Pravst
- Nutrition Institute, Ljubljana, Slovenia
| | - L Tolentino-Mayo
- Nutrition and Health Research Center (CINyS), Cuernavaca, Mexico
| | - M Reyes
- Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - M L’Abbe
- University of Toronto, Toronto, Canada
| | - B C Neal
- Global Obesity Centre, Deakin University, Victoria, New Zealand
| |
Collapse
|
24
|
Jiménez-Aspee F, Theoduloz C, Gómez-Alonso S, Hermosín-Gutiérrez I, Reyes M, Schmeda-Hirschmann G. Polyphenolic profile and antioxidant activity of meristem and leaves from "chagual" (Puya chilensis Mol.), a salad from central Chile. Food Res Int 2018; 114:90-96. [PMID: 30361031 DOI: 10.1016/j.foodres.2018.07.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 05/15/2018] [Revised: 07/04/2018] [Accepted: 07/30/2018] [Indexed: 10/28/2022]
Abstract
The Bromeliaceae Puya chilensis Mol. is a native monocotyledonous food plant that can be found in central Chile. It is traditionally known as chagual. The tender basal part of the leaves, just starting from the meristem, are consumed as a salad. The aim of this work was to describe the phenolic content and composition of the meristem and leaves of chagual, as well as their antioxidant capacity and inhibitory activity against metabolic syndrome-associated enzymes. Samples of chagual, including two cultivated and three wild growing plants, were analyzed and compared for composition and bioactivity. From the phenolic enriched extract of the plant (PEE), 26 compounds were tentatively identified by HPLC-DAD-ESI-MSn, including 12 hydroxycinnamic acids and 14 flavonoids. The main compounds were identified as diferuloyl hexaric acid isomers and 5-p-Coumaroylquinic acid. The compounds were quantified in both meristem and leaves. The PEE content was up to ten times higher in the meristem than in the leaves, ranging from 0.18 to 124.08 mg/g PEE. The samples inhibited α-glucosidase, but did not show effect on α-amylase and pancreatic lipase. This is the first report on the polyphenol composition and bioactivity of the edible components of the chagual food plant.
Collapse
Affiliation(s)
- Felipe Jiménez-Aspee
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, 3460000 Talca, Chile; Núcleo Científico Multidisciplinario, Dirección de Investigación, Universidad de Talca, 3460000 Talca, Chile; Programa de Investigación de Excelencia Interdisciplinaria en Química y Bio-orgánica de Recursos Naturales (PIEI-QUIM-BIO), Universidad de Talca, Chile.
| | - Cristina Theoduloz
- Programa de Investigación de Excelencia Interdisciplinaria en Química y Bio-orgánica de Recursos Naturales (PIEI-QUIM-BIO), Universidad de Talca, Chile; Laboratorio de Cultivo Celular, Facultad de Ciencias de la Salud, Universidad de Talca, 3460000 Talca, Chile
| | - Sergio Gómez-Alonso
- Instituto Regional de Investigación Científica Aplicada, Departamento de Química Analítica y Tecnología de Alimentos, Universidad Castilla- La Mancha, Campus Universitario s/n, Ciudad Real, Spain
| | - Isidro Hermosín-Gutiérrez
- Instituto Regional de Investigación Científica Aplicada, Departamento de Química Analítica y Tecnología de Alimentos, Universidad Castilla- La Mancha, Campus Universitario s/n, Ciudad Real, Spain
| | - Marisol Reyes
- Instituto Nacional de Investigación Agrícola, INIA-Raihuén, San Javier, Chile
| | - Guillermo Schmeda-Hirschmann
- Programa de Investigación de Excelencia Interdisciplinaria en Química y Bio-orgánica de Recursos Naturales (PIEI-QUIM-BIO), Universidad de Talca, Chile; Laboratorio de Química de Productos Naturales, Instituto de Química de Recursos Naturales, Universidad de Talca, 3460000 Talca, Chile.
| |
Collapse
|
25
|
Herrmann E, Ermis E, Jungo A, Blatti-Moreno M, Knecht U, Aebersold DM, Manser P, Reyes M. P01.088 Brain resection cavity delineation for radiation target volume definition in glioblastoma patients using deep learning. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- E Herrmann
- Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerl
| | - E Ermis
- Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerl
| | - A Jungo
- Institute for Surgical Technology and Biomechanics, Bern, Switzerl
| | - M Blatti-Moreno
- Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerl
| | - U Knecht
- Institute for Diagnostic and Interventional Neuroradiology, University Hospital Inselspital, Bern, Switzerl
| | - D M Aebersold
- Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerl
| | - P Manser
- Division of Medical Radiation Physics and Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - M Reyes
- Institute for Surgical Technology and Biomechanics, Bern, Switzerl
| |
Collapse
|
26
|
Burotto M, Aren O, Samtani S, Frelinghuysen M, Reyes M, Rojas C, Silva R. P28 75 Mg of Erlotinib in Latin American Patients with Metastatic Non–Small Cell Lung Cancer — Long Term Analysis. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.07.067] [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: 11/25/2022]
|
27
|
Noll J, Matetic RJ, Li J, Zhou C, DuCarme J, Reyes M, Srednicki J. Electromagnetic interference from personal dust monitors and other electronic devices with proximity detection systems. ACTA ACUST UNITED AC 2018; 70:61-68. [PMID: 30147149 DOI: 10.19150/me.8237] [Citation(s) in RCA: 5] [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] [Indexed: 11/06/2022]
Abstract
In April 2016, the U.S. Mine Safety and Health Administration (MSHA) began requiring the use of continuous personal dust monitors to monitor and measure respirable mine dust exposures to underground coal miners. Mines are currently using the PDM3700 personal dust monitor to comply with this regulation. After the PDM3700's implementation, mine operators discovered that it interfered with proximity detection systems, thus exposing miners to potential striking and pinning hazards from continuous mining machines. Besides the PDM3700, other electronic devices were also previously reported to interfere with proximity detection systems. MSHA sought the aid of the U.S. National Institute for Occupational Safety and Health (NIOSH) and mining industry stakeholders to determine how the PDM3700 and some other electronic devices and proximity detection systems interact with each other. Accordingly, NIOSH investigated existing standards, developed test protocols, designed experiments and conducted laboratory evaluations. Some interferences were observed to be caused by electromagnetic interference from some electronic devices, including the PDM3700. Results showed that there was no significant interference when the PDM3700, as well as other electronic devices, and the miner-wearable component of the proximity detection system were separated by distances of 15 cm (6 in.) or greater. In the present study, it was found that the PDM3700 and the personal alarm device needed to be at least 15 cm (6 in.) apart in order for them to be used simultaneously and reduce potential interference.
Collapse
Affiliation(s)
- J Noll
- J. Noll, R.J. Matetic, member SME, J. Li, C. Zhou, J. DuCarme, M. Reyes and J. Srednicki are senior research chemist, director of Pittsburgh Mining Research Division, senior mining engineer, lead electrical engineer, lead mechanical engineer, lead electrical engineer and electronic technician, respectively, at the National Institute for Occupational Safety and Health, Pittsburgh, PA, USA,
| | - R J Matetic
- J. Noll, R.J. Matetic, member SME, J. Li, C. Zhou, J. DuCarme, M. Reyes and J. Srednicki are senior research chemist, director of Pittsburgh Mining Research Division, senior mining engineer, lead electrical engineer, lead mechanical engineer, lead electrical engineer and electronic technician, respectively, at the National Institute for Occupational Safety and Health, Pittsburgh, PA, USA,
| | - J Li
- J. Noll, R.J. Matetic, member SME, J. Li, C. Zhou, J. DuCarme, M. Reyes and J. Srednicki are senior research chemist, director of Pittsburgh Mining Research Division, senior mining engineer, lead electrical engineer, lead mechanical engineer, lead electrical engineer and electronic technician, respectively, at the National Institute for Occupational Safety and Health, Pittsburgh, PA, USA,
| | - C Zhou
- J. Noll, R.J. Matetic, member SME, J. Li, C. Zhou, J. DuCarme, M. Reyes and J. Srednicki are senior research chemist, director of Pittsburgh Mining Research Division, senior mining engineer, lead electrical engineer, lead mechanical engineer, lead electrical engineer and electronic technician, respectively, at the National Institute for Occupational Safety and Health, Pittsburgh, PA, USA,
| | - J DuCarme
- J. Noll, R.J. Matetic, member SME, J. Li, C. Zhou, J. DuCarme, M. Reyes and J. Srednicki are senior research chemist, director of Pittsburgh Mining Research Division, senior mining engineer, lead electrical engineer, lead mechanical engineer, lead electrical engineer and electronic technician, respectively, at the National Institute for Occupational Safety and Health, Pittsburgh, PA, USA,
| | - M Reyes
- J. Noll, R.J. Matetic, member SME, J. Li, C. Zhou, J. DuCarme, M. Reyes and J. Srednicki are senior research chemist, director of Pittsburgh Mining Research Division, senior mining engineer, lead electrical engineer, lead mechanical engineer, lead electrical engineer and electronic technician, respectively, at the National Institute for Occupational Safety and Health, Pittsburgh, PA, USA,
| | - J Srednicki
- J. Noll, R.J. Matetic, member SME, J. Li, C. Zhou, J. DuCarme, M. Reyes and J. Srednicki are senior research chemist, director of Pittsburgh Mining Research Division, senior mining engineer, lead electrical engineer, lead mechanical engineer, lead electrical engineer and electronic technician, respectively, at the National Institute for Occupational Safety and Health, Pittsburgh, PA, USA,
| |
Collapse
|
28
|
Balsiger F, Steindel C, Arn M, Wagner B, El-Koussy M, Rösler K, Valenzuela W, Reyes M, Scheidegger O. P13. Semi-automatic, machine-learning based segmentation of peripheral nerves for quantitative morphometry: Comparison of low- and high-resolution MR neurography. Clin Neurophysiol 2018. [DOI: 10.1016/j.clinph.2018.04.655] [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]
|
29
|
Li J, DuCarme J, Reyes M, Smith A. Investigation of the influence of a large steel plate on the magnetic field distribution of a magnetic proximity detection system. ACTA ACUST UNITED AC 2018; 70:51-56. [PMID: 30008486 DOI: 10.19150/me.8299] [Citation(s) in RCA: 4] [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: 11/06/2022]
Abstract
A magnetic proximity detection system is mounted on a mobile mining machine to prevent underground workers from being pinned or struck by machine motion. The system generates magnetic fields around the machine to determine safe working distances. The miner-worn component measures the magnetic field in order to approximate location. Large masses of steel, such as those from mining equipment, can alter the magnetic field distribution. This affects the locational accuracy of the system, thus adversely impacting worker safety. To examine this problem, U.S. National Institute for Occupational Safety and Health researchers developed a method and test system to study the influence of a steel mass on the magnetic field distribution. The results show that a steel plate can strengthen the magnetic field perpendicular to the generator by up to 40 percent. Furthermore, they show that the degree of the influence on the field distribution is a function of distance. The results from this study can be used to further develop and improve the performance and reliability of electromagnetic proximity detection systems used in underground mining applications.
Collapse
Affiliation(s)
- J Li
- Senior mining engineer, lead mechanical engineer (retired), team leader and deputy division director, respectively, National Institute for Occupational Safety and Health (NIOSH), Pittsburgh, PA, USA
| | - J DuCarme
- Senior mining engineer, lead mechanical engineer (retired), team leader and deputy division director, respectively, National Institute for Occupational Safety and Health (NIOSH), Pittsburgh, PA, USA
| | - M Reyes
- Senior mining engineer, lead mechanical engineer (retired), team leader and deputy division director, respectively, National Institute for Occupational Safety and Health (NIOSH), Pittsburgh, PA, USA
| | - A Smith
- Senior mining engineer, lead mechanical engineer (retired), team leader and deputy division director, respectively, National Institute for Occupational Safety and Health (NIOSH), Pittsburgh, PA, USA
| |
Collapse
|
30
|
Lefroy R, Bashar K, Dattani N, Reyes M, Rajagopalan S, Jaipersad A, Asquith J, Pherwani A. Analysis of the vascular access pathway for patients with chronic renal failure preparing for dialysis in a tertiary UK centre. Int J Surg 2018. [DOI: 10.1016/j.ijsu.2018.05.673] [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: 12/01/2022]
|
31
|
Janát-Amsbury M, Taurin S, Yang C, Reyes M, Coombs D, Jarboe E, Werner T, Peterson C. Endometrial cancers are successfully targeted with a new pan-tyrosine kinase inhibitor in an orthotopic mouse model. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.137] [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]
|
32
|
Torres P, Castro M, Reyes M, Torres VA. Histatins, wound healing, and cell migration. Oral Dis 2018; 24:1150-1160. [PMID: 29230909 DOI: 10.1111/odi.12816] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [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: 11/17/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 12/20/2022]
Abstract
Wounds in the oral mucosa heal faster and more efficiently than those in the skin, although the mechanisms underlying these differences are not completely clear. In the last 10 years, a group of salivary peptides, the histatins, has gained attention on behalf of their ability to improve several phases of the wound-healing process. In addition to their roles as anti-microbial agents and in enamel maintenance, histatins elicit other biological effects, namely by promoting the migration of different cell types contained in the oral mucosa and in non-oral tissues. Histatins, and specifically histatin-1, promote cell adhesion and migration in oral keratinocytes, gingival and dermal fibroblasts, non-oral epithelial cells, and endothelial cells. This is particularly relevant, as histatin-1 promotes the re-epithelialization phase and the angiogenic responses by increasing epithelial and endothelial cell migration. Although the molecular mechanisms associated with histatin-dependent cell migration remain poorly understood, recent studies have pointed to the control of signaling endosomes and the balance of small GTPases. This review aimed to update the literature on the effects of histatins in cell migration, with a focus on wound healing. We will also discuss the consequences that this increasing field will have in disease and therapy design.
Collapse
Affiliation(s)
- P Torres
- Faculty of Dentistry, Institute for Research in Dental Sciences, Universidad de Chile, Santiago, Chile
| | - M Castro
- Faculty of Dentistry, Institute for Research in Dental Sciences, Universidad de Chile, Santiago, Chile
| | - M Reyes
- Faculty of Dentistry, Institute for Research in Dental Sciences, Universidad de Chile, Santiago, Chile
| | - V A Torres
- Faculty of Dentistry, Institute for Research in Dental Sciences, Universidad de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago, Chile
| |
Collapse
|
33
|
Abstract
The Industrial Internet of Things (IIoT), a concept that combines sensor networks and control systems, has been employed in several industries to improve productivity and safety. U.S. National Institute for Occupational Safety and Health (NIOSH) researchers are investigating IIoT applications to identify the challenges of and potential solutions for transferring IIoT from other industries to the mining industry. Specifically, NIOSH has reviewed existing sensors and communications network systems used in U.S. underground coal mines to determine whether they are capable of supporting IIoT systems. The results show that about 40 percent of the installed post-accident communication systems as of 2014 require minimal or no modification to support IIoT applications. NIOSH researchers also developed an IIoT monitoring and control prototype system using low-cost microcontroller Wi-Fi boards to detect a door opening on a refuge alternative, activate fans located inside the Pittsburgh Experimental Mine and actuate an alarm beacon on the surface. The results of this feasibility study can be used to explore IIoT applications in underground coal mines based on existing communication and tracking infrastructure.
Collapse
Affiliation(s)
- C Zhou
- Member SME, are senior electrical engineer, electrical engineer, electrical technician and team leader, respectively, at Pittsburgh Mining Research Division (PMRD), National Institute for Occupational Safety and Health (NIOSH), Pittsburgh, PA, USA
| | - N Damiano
- Member SME, are senior electrical engineer, electrical engineer, electrical technician and team leader, respectively, at Pittsburgh Mining Research Division (PMRD), National Institute for Occupational Safety and Health (NIOSH), Pittsburgh, PA, USA
| | - B Whisner
- Member SME, are senior electrical engineer, electrical engineer, electrical technician and team leader, respectively, at Pittsburgh Mining Research Division (PMRD), National Institute for Occupational Safety and Health (NIOSH), Pittsburgh, PA, USA
| | - M Reyes
- Member SME, are senior electrical engineer, electrical engineer, electrical technician and team leader, respectively, at Pittsburgh Mining Research Division (PMRD), National Institute for Occupational Safety and Health (NIOSH), Pittsburgh, PA, USA
| |
Collapse
|
34
|
Burrows R, Correa-Burrows P, Reyes M, Blanco E, Albala C, Gahagan S. Low muscle mass is associated with cardiometabolic risk regardless of nutritional status in adolescents: A cross-sectional study in a Chilean birth cohort. Pediatr Diabetes 2017; 18:895-902. [PMID: 28145023 PMCID: PMC5538898 DOI: 10.1111/pedi.12505] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 12/20/2016] [Accepted: 01/03/2017] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Increased cardiometabolic risk (CMR) is documented in obese and non-obese adolescents with low muscular fitness. However, the association of low muscle mass (LMM) with CMR, independent of weight status, has not been examined. We analyzed the relationship of LMM with CMR in adolescents, regardless of their weight status. MATERIALS AND METHODS Observational study in 660 adolescents. BMI, waist circumference (WC), arterial blood pressures (ABP) were measured. Total fat mass (TFM), total lean tissue (TLT), and appendicular skeletal muscle mass (ASM) were estimated (DXA). Fasting lipid profile, glucose, and insulin were measured. HOMA-IR was estimated. Metabolic Syndrome (MetS) was diagnosed (AHA/NHLBI/IDF). ROC analysis was performed to find the optimal cutoffs of TLT percentage for MetS diagnosis. Values below these cutoffs defined LMM. ANCOVA examined the association of LMM with selected cardiometabolic biomarkers. RESULTS In both sexes, TLT showed better sensitivity and specificity than ASM for MetS diagnosis. In males and females, TLT of 66.1% and 56.3%, respectively, were the optimal cutoff for MetS diagnosis. In the sample, 17.3% of males and 23.7% of females had LMM. In both sexes, adolescents with LMM had significantly higher values of WC, ABP, TG, TC/HDL, HOMA-IR, and MetS z-score than non-LMM participants. Adolescents with LMM, regardless nutritional status, had significantly increased values of MetS z-score, ABP, TG, TC/HDL-chol, and HOMA-IR than non-obese non-LMM adolescents. Adolescents having both obesity and LMM had the unhealthiest CMR profile. CONCLUSION In adolescents, LMM was associated with higher CMR, regardless of nutritional status. In obese adolescents, LMM increased obesity-associated CMR.
Collapse
Affiliation(s)
- R Burrows
- Institute of Nutrition and Food Technology, University of Chile. Santiago, Chile. Avda. El Líbano 5524, Macul. CP: 7830490. Santiago de Chile
| | - P Correa-Burrows
- Institute of Nutrition and Food Technology, University of Chile. Santiago, Chile. Avda. El Líbano 5524, Macul. CP: 7830490. Santiago de Chile
| | - M Reyes
- Institute of Nutrition and Food Technology, University of Chile. Santiago, Chile. Avda. El Líbano 5524, Macul. CP: 7830490. Santiago de Chile
| | - E Blanco
- Division of Child Development and Community Health, University of California San Diego. 9500 Gilman Drive, MC 0602. La Jolla, CA 92093, USA
| | - C Albala
- Institute of Nutrition and Food Technology, University of Chile. Santiago, Chile. Avda. El Líbano 5524, Macul. CP: 7830490. Santiago de Chile
| | - S Gahagan
- Division of Child Development and Community Health, University of California San Diego. 9500 Gilman Drive, MC 0602. La Jolla, CA 92093, USA
| |
Collapse
|
35
|
Blanco E, Burrows R, Reyes M, Lozoff B, Gahagan S, Albala C. Breastfeeding as the sole source of milk for 6 months and adolescent bone mineral density. Osteoporos Int 2017; 28:2823-2830. [PMID: 28589419 PMCID: PMC5840801 DOI: 10.1007/s00198-017-4106-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 05/29/2017] [Indexed: 10/19/2022]
Abstract
UNLABELLED Little is known regarding the relationship between early life factors and bone mineral density (BMD). We found a positive association between breastfeeding for at least 6 months, without formula supplementation, and whole body adolescent BMD z-score. INTRODUCTION The aim of the study is to assess the role of breastfeeding BF on adolescent bone mineral density (BMD) in a cohort prospectively followed since infancy. METHODS We studied 679 participants from an infancy iron deficiency anemia preventive trial in Santiago, Chile, followed to adolescence. Breast and bottle feeding were ascertained weekly from 4 to 12 months. At 16 years, whole body BMD was assessed by DEXA. Using linear regression, we evaluated associations between BF duration and BF as the sole source of milk and adolescent BMD z-score, adjusting for possible infancy, adolescent, and background confounders. RESULTS Mean birth weight and length were 3.5 (0.3) kg and 50.7 (1.6) cm. For at least 6 months, BF was the sole source of milk for 26.3% and with supplementation for 36.7%. For 37%, BF was provided for less than 6 months. Mean 16-year BMD z-score was 0.25 (1.0). Covariates included male sex, birth length, and gestational age. BF as the sole source of milk ≥6 months, compared to BF < 6 months, was associated with higher adolescent BMD z-score adjusting for covariates (β = 0.29, p < 0.05). Mixed BF was not significantly related to adolescent BMD z-score (β = 0.06, p = 0.47). For every 30 days of BF as the sole source of milk, adolescent BMD z-score increased by 0.03 (p = 0.01). CONCLUSION BF without formula supplementation for at least 6 months was associated with higher adolescent BMD z-score and a suggestive trend in the same direction for BMD suggests that exclusivity and duration of BF may play a role in adolescent bone health.
Collapse
Affiliation(s)
- E Blanco
- Department of Pediatrics, UC San Diego, 9500 Gilman Drive, MC 0927, La Jolla, CA, 92093-0927, USA.
| | - R Burrows
- Public Health Nutrition Unit, Institute of Nutrition and Food Technology (INTA), University of Chile, Avenida El Líbano 5524, Macul, Santiago de Chile, Chile
| | - M Reyes
- Public Health Nutrition Unit, Institute of Nutrition and Food Technology (INTA), University of Chile, Avenida El Líbano 5524, Macul, Santiago de Chile, Chile
| | - B Lozoff
- Center for Human Growth and Development, University of Michigan, 300 North Ingalls, Ann Arbor, MI, 48109-5406, USA
| | - S Gahagan
- Department of Pediatrics, UC San Diego, 9500 Gilman Drive, MC 0927, La Jolla, CA, 92093-0927, USA
- Center for Human Growth and Development, University of Michigan, 300 North Ingalls, Ann Arbor, MI, 48109-5406, USA
| | - C Albala
- Public Health Nutrition Unit, Institute of Nutrition and Food Technology (INTA), University of Chile, Avenida El Líbano 5524, Macul, Santiago de Chile, Chile
| |
Collapse
|
36
|
Bruno L, Jablonski P, Ozkul M, Mercado G, Sendoya J, Llera A, Núñez L, Valdez R, Mansilla D, Cólica V, Kalfayan P, Ruggiero C, Reyes M, Cerretini R. NGS and Sanger screening for BRCA1/BRCA2, CHEK2 and TP53 in Argentinian high-risk breast/ovarian cancer families and bioinformatic studies: Initial results. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx383.010] [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: 11/13/2022] Open
|
37
|
Esteban Figuerola A, Martínez Roca A, Solà Fernàndz M, Culebras A, Reyes M. P-056: High thrombotic risk in a pregnant woman with an antithrombin deficiency: management and outcome. Thromb Res 2017. [DOI: 10.1016/s0049-3848(17)30154-8] [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]
|
38
|
Pato E, Martin-Martinez A, Castellό A, Méndez-Fernandez R, Muñoz-Fernández S, Cordero-Coma M, Martinez-Costa L, Valls E, Reyes M, Francisco F, Esteban M, Fonollosa A, Sanchez-Alonso F, Fernandez-Espartero C, Diaz-Valle T, Carrasco J, Beltran-Catalan E, Hernandez-Garfella M, Hernandez V, Pelegrin L, Blanco R, Diaz-Valle D. AB0999 Development of An Activity Disease Score in Patients with Uveitis (UVEDAI). Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2014] [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: 11/03/2022]
|
39
|
Reyes M, Drever NN, Allen SR, Kuehl TJ, Uddin MN, Afroze SH, Zawieja DC, Costantine MM. ID: 71: PRAVASTATIN PROTECTS A SW-71 CYTOTROPHOBLAST CELL LINE FROM A HYPERGLYCEMIA-INDUCED PREECLAMPSIA PHENOTYPE. J Investig Med 2016. [DOI: 10.1136/jim-2016-000120.9] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
ObjectiveAn increasing level of evidence supports the utility of pravastatin as prevention against preeclampsia (preE). We previously demonstrated a hyperglycemia induced cytotrophoblast (CTBs) dysfunction characteristic of a preE-like phenotype and sought to demonstrate the utility of pravastatin in rescuing CTBs from this hyperglycemia induced dysfunction.MethodsHuman CTBs were treated with 100, 150, 200, 300, or 400 mg/dL glucose for 48 hrs. Cells were treated with pravastatin (1 ug/mL) either alongside or 2 hrs prior to glucose exposure. Some cells were treated with D-Mannitol as a negative control for glucose exposure. Cell migration was performed by Matrigel migration assay kit according to manufacturer protocol. Cell lysates were utilized to evaluate the mRNA expression of urokinase plasminogen activator (uPA) and plasminogen activator inhibitor 1 (PAI-1), while also assessing proliferating cell nuclear antigen (PCNA) and p38 MAPK phosphorylation by western blot. Levels of vascular endothelial growth factor (VEGF), placental growth factor (PlGF), soluble fms-like tyrosine kinase-1 (sFlt-1), soluble endoglin (sEng) and interleukin 6 (IL-6) were measured in culture media using ELISA kits. Statistical comparisons were performed using analysis of variance with Duncan's post hoc test.ResultsHyperglycemia inhibited CTBs migration by down-regulating uPA, PAI-1, PCNA and up-regulating p38 phosphorylation in cells treated with >150 mg/dL glucose compared to basal (100 mg/dL) (*p<0.05 for each). Secretion of sFlt-1, sEng and IL-6 were increased while VEGF and PIGF were decreased in CTBs treated ≥150 mg/dl of glucose (*p<0.05 for each). Both pravastatin pretreatment and co-treatment significantly rescued CTBs migration, up-regulating uPA, PAI-1, PCNA, down-regulating p38 phosphorylation, and correcting the angiogenic profile of CTBs (p<0.05 for each). D-Mannitol showed no osmotic effect on CTBs.ConclusionsPravastatin mitigates the hyperglycemia-induced dysfunction of CTBs by attenuating the glucose-induced anti-proliferative, anti-migratory, anti-invasive and anti-angiogenic phenotype similar to that seen in Preeclampsia. This study supports the potential for pravastatin use on CTBs development early in pregnancy and the importance of continuing research of pravastatin in preE prevention.
Collapse
|
40
|
Choudhury S, Reyes M, Drever NN, Allen SR, Kuehl TJ, Uddin MN, Beeram MR, Afroze SH, Zawieja DC. ID: 105: COMPARISON OF PLACENTAL AND PLASMA SOLUBLE (PRO)RENIN RECEPTOR IN NORMAL AND PREECLAMPTIC PREGNANCY. J Investig Med 2016. [DOI: 10.1136/jim-2016-000120.96] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
ObjectivePreeclampsia (preE), a syndrome of hypertension and proteinuria. Most recently it was demonstrated that high circulating levels of soluble (pro) renin receptor s(P)RR at delivery were associated with preE. In this study the placental expression of (P)RR were evaluated in preE patients and in a rat model of preE as well as in nonhuman primates. We also evaluated the circulatory levels of s(P)RR.Study Design(1) Placental samples were collected from 20 NP and 20 preE consenting patients in an IRB approved prospective study. (2) An established rat model of preE and NP rats (n=10 each) were used. (3) The placental samples from squirrel monkey (NP; n=10) and owl monkey (both early and term, NP, n=1) were collected. The (P)RR expression were measured both by western blotting (WB) and Immunohistochemistry (IHC) using anti-ATP6IP2. The levels of serum s(P)RR were measured by ELISA.ResultsThe placental expression of (P)RR were higher (p<0.05) in preE compared to NP both in patients and rat model. The s(P)RR levels were higher in preE (preE patients: 29.2±4.5; PDS rats: 16.9±1.9 ng/mL) compared to NP (NP human: 19.3±4.2; NP rats: 10.4±3.7 ng/mL). The early placenta of owl monkey expressed higher (P)RR compared to term and were expressed in squirrel monkey placentas.ConclusionsThese data suggest that increased expression of (P)RR in the placenta are related to the occurrence of preE in both patients and rat models. These data also reconfirmed that the high level of circulatory s(P)RR is associated with preE. The higher expression of (P)RR in early owl monkey in compare to term placenta suggests that the (P)RR is important for normal placental development. The expression of (P)RR in nonhuman primates reveals the approach of future studies on owl monkey and squirrel monkey preE models.
Collapse
|
41
|
Osuji GC, Reyes M, Drever NN, Kuehl TJ, Uddin MN, Afroze SH, Zawieja DC, Beeram MR. ID: 104: CINOBUFOTALIN HINDERS CYTOTROPHOBLASTS FUNCTION VIA CELL CYCLE ARREST. J Investig Med 2016. [DOI: 10.1136/jim-2016-000120.94] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
ObjectivePreeclampsia (preE) is a hypertensive disorder of pregnancy. Cardiotonic steroids (CTS) are endogenous inhibitors of Na+/K+ ATPase and at least one CTS, marinobufagenin (MBG), is elevated in preE prior to the development of the syndrome in rats with preE. MBG and ouabain impair cytotrophoblast (CTB) function, which is critical for placental development.Study DesignWe evaluated the effect of a CTS, cinobufotalin (CINO), on CTB cell function in vitro.ResultsCINO at ≥1 nM inhibited CTB cell proliferation, migration, and invasion (p<0.05) but had no effect on cell viability. There was a higher (p<0.05) percentage of G0/G1 phase cells in groups treated with CINO at ≥1 nM. CINO caused an increase in stress signaling p38 MAPK and a positive annexin-V staining in CTB cells, indicating the activation of apoptotic signaling. However, the CINO induced apoptotic signaling was prevented by p38 inhibition.ConclusionThis data demonstrates that CINO impairs CTB cell function via cell cycle arrest and apoptotic signaling.
Collapse
|
42
|
Kalagiri RR, Beeram MR, Govande V, Kuehl TJ, Uddin MN, Afroze SH, Reyes M, Drever NN, Allen SR. ID: 56: COMPARISON OF OUTCOMES BETWEEN NORMAL AND PREECLAMPTIC PREGNANCIES: A PROSPECTIVE STUDY. J Investig Med 2016. [DOI: 10.1136/jim-2016-000120.98] [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] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
ObjectivePreeclampsia (preE) is a multifaceted complication found uniquely in the pregnant patient and one that has puzzled scientist for years. It has been demonstrated that preE is not a single disorder, but a complex syndrome that is produced by various pathophysiologic triggers and mechanisms affecting 3–8% of obstetrical patients worldwide. PreE, is a major cause of premature delivery and maternal and fetal death. It is characterized by de novo development of hypertension and proteinuria after 20 weeks gestation. preE has a significant link to alterations of placental function leading to stress and apoptotic signaling, which pass the placental barrier and leave persistent defect in the circulation of the offspring. We assessed the comparison of pregnancy outcome between patients with and without preE.MethodsWe recruited 20 normal pregnant (NP) and 20 preE consenting patients after deliveries in an IRB approved prospective study from Scott & White Healthcare. We evaluated the following parameters for mothers BP, Proteinuria, BMI, Gestational age, Age, Placental factors: circumference, placental signaling proteins. The placental stress signaling proteins (p38 MAPK, COX-2 and Bax/Bcl-2) were measured. We also evaluated babies for IUGR and anthropometric measurements. Comparisons were performed using Student's t test.ResultsMothers in the PE group had significantly higher blood pressures (SBP p=0.0000001 and DBP p=0.001) and also higher urinary protein excretion (p=0.002). Average hospital stay for PreE babies were longer than NP babies (p=0.001879). No complications were reported for NP babies; however, preE babies had multiple complications like hypoglycemia, RDS etc though they were born at preterm. Many of the PreE babies were born premature (p=0.017). The birth weights of the PE babies were much lower than the NP babies with a p value of 0.027 and also the PE babies were significantly SGA when compare to the NP babies with significant difference in their Ponderal Index (PI) (p=0.0004). The placental stress signaling proteins p38 MAPK, COX-2 and Bax/Bcl-2 were up-regulated in preE compared to normal pregnancy (p<0.05, in each case).ConclusionsPreE alters the intrauterine environment and activates the detrimental signaling that is transported to fetus resulting in premature deliveries, IUGR babies and their related complications like extended hospitalization.
Collapse
|
43
|
Wang B, Armstrong JS, Reyes M, Kulikowicz E, Lee JH, Spicer D, Bhalala U, Yang ZJ, Koehler RC, Martin LJ, Lee JK. White matter apoptosis is increased by delayed hypothermia and rewarming in a neonatal piglet model of hypoxic ischemic encephalopathy. Neuroscience 2015; 316:296-310. [PMID: 26739327 DOI: 10.1016/j.neuroscience.2015.12.046] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [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: 06/03/2015] [Revised: 10/12/2015] [Accepted: 12/24/2015] [Indexed: 11/29/2022]
Abstract
Therapeutic hypothermia is widely used to treat neonatal hypoxic ischemic (HI) brain injuries. However, potentially deleterious effects of delaying the induction of hypothermia and of rewarming on white matter injury remain unclear. We used a piglet model of HI to assess the effects of delayed hypothermia and rewarming on white matter apoptosis. Piglets underwent HI injury or sham surgery followed by normothermic or hypothermic recovery at 2h. Hypothermic groups were divided into those with no rewarming, slow rewarming at 0.5°C/h, or rapid rewarming at 4°C/h. Apoptotic cells in the subcortical white matter of the motor gyrus, corpus callosum, lateral olfactory tract, and internal capsule at 29h were identified morphologically and counted by hematoxylin & eosin staining. Cell death was verified by terminal deoxynucleotidyl transferase (TdT) dUTP nick end labeling (TUNEL) assay. White matter neurons were also counted, and apoptotic cells were immunophenotyped with the oligodendrocyte marker 2',3'-cyclic-nucleotide 3'-phosphodiesterase (CNPase). Hypothermia, slow rewarming, and rapid rewarming increased apoptosis in the subcortical white matter relative to normothermia (p<0.05). The number of white matter neurons was not lower in groups with more apoptosis after hypothermia or rapid rewarming, indicating that the apoptosis occurred among glial cells. Hypothermic piglets had more apoptosis in the lateral olfactory tract than those that were rewarmed (p<0.05). The promotion of apoptosis by hypothermia and rewarming in these regions was independent of HI. In the corpus callosum, HI piglets had more apoptosis than shams after normothermia, slow rewarming, and rapid rewarming (p<0.05). Many apoptotic cells were myelinating oligodendrocytes identified by CNPase positivity. Our results indicate that delaying the induction of hypothermia and rewarming are associated with white matter apoptosis in a piglet model of HI; in some regions these temperature effects are independent of HI. Vulnerable cells include myelinating oligodendrocytes. This study identifies a deleterious effect of therapeutic hypothermia in the developing brain.
Collapse
Affiliation(s)
- B Wang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States
| | - J S Armstrong
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States
| | - M Reyes
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States
| | - E Kulikowicz
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States
| | - J-H Lee
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States
| | - D Spicer
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States
| | - U Bhalala
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States
| | - Z-J Yang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States
| | - R C Koehler
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States
| | - L J Martin
- Department of Pathology, Division of Neuropathology, JHU, United States
| | - J K Lee
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (JHU), United States.
| |
Collapse
|
44
|
Abstract
Dimensional alterations of the facial soft and bone tissues following tooth extraction in the esthetic zone play an essential role to achieve successful outcomes in implant therapy. This prospective study is the first to investigate the interplay between the soft tissue dimensions and the underlying bone anatomy during an 8-wk healing period. The analysis is based on sequential 3-dimensional digital surface model superimpositions of the soft and bone tissues using digital impressions and cone beam computed tomography during an 8-wk healing period. Soft tissue thickness in thin and thick bone phenotypes at extraction was similar, averaging 0.7 mm and 0.8 mm, respectively. Interestingly, thin bone phenotypes revealed a 7-fold increase in soft tissue thickness after an 8-wk healing period, whereas in thick bone phenotypes, the soft tissue dimensions remained unchanged. The observed spontaneous soft tissue thickening in thin bone phenotypes resulted in a vertical soft tissue loss of only 1.6 mm, which concealed the underlying vertical bone resorption of 7.5 mm. Because of spontaneous soft tissue thickening, no significant differences were detected in the total tissue loss between thin and thick bone phenotypes at 2, 4, 6, and 8 wk. More than 51% of these dimensional alterations occurred within 2 wk of healing. Even though the observed spontaneous soft tissue thickening in thin bone phenotypes following tooth extraction conceals the pronounced underlying bone resorption pattern by masking the true bone deficiency, spontaneous soft tissue thickening offers advantages for subsequent bone regeneration and implant therapies in sites with high esthetic demand (Clinicaltrials.gov NCT02403700).
Collapse
Affiliation(s)
- V. Chappuis
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - O. Engel
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - K. Shahim
- Institute for Surgical Technology and Biomechanics, University of Bern, Bern, Switzerland
| | - M. Reyes
- Institute for Surgical Technology and Biomechanics, University of Bern, Bern, Switzerland
| | - C. Katsaros
- Department of Orthodontics and Dentofacial Orthopedics, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - D. Buser
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| |
Collapse
|
45
|
Rios Velazquez E, Meier R, Dunn W, Alexander B, Wiest R, Bauer S, Gutman D, Reyes M, Aerts H. TU-AB-BRA-11: Evaluation of Fully Automatic Volumetric GBM Segmentation in the TCGA-GBM Dataset: Prognosis and Correlation with VASARI Features. Med Phys 2015. [DOI: 10.1118/1.4925516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
46
|
Lindo F, Carr E, Reyes M, Gendron J, Ruiz J, Parks V, Larsen W, Kuehl T. Prospective Randomized Trial of Cesarean Delivery versus Vaginal Delivery for Effects on the Pelvic Floor in Squirrel Monkeys. J Minim Invasive Gynecol 2015. [DOI: 10.1016/j.jmig.2014.12.021] [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: 11/29/2022]
|
47
|
Burrows R, Correa-Burrows P, Reyes M, Blanco E, Albala C, Gahagan S. Healthy Chilean Adolescents with HOMA-IR ≥ 2.6 Have Increased Cardiometabolic Risk: Association with Genetic, Biological, and Environmental Factors. J Diabetes Res 2015; 2015:783296. [PMID: 26273675 PMCID: PMC4530255 DOI: 10.1155/2015/783296] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 01/06/2015] [Accepted: 01/07/2015] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE To determine the optimal cutoff of the homeostasis model assessment-insulin resistance (HOMA-IR) for diagnosis of the metabolic syndrome (MetS) in adolescents and examine whether insulin resistance (IR), determined by this method, was related to genetic, biological, and environmental factors. METHODS In 667 adolescents (16.8 ± 0.3 y), BMI, waist circumference, glucose, insulin, adiponectin, diet, and physical activity were measured. Fat and fat-free mass were assessed by dual-energy X-ray absorptiometry. Family history of type 2 diabetes (FHDM) was reported. We determined the optimal cutoff of HOMA-IR to diagnose MetS (IDF criteria) using ROC analysis. IR was defined as HOMA-IR values above the cutoff. We tested the influence of genetic, biological, and environmental factors on IR using logistic regression analyses. RESULTS Of the participants, 16% were obese and 9.4 % met criteria for MetS. The optimal cutoff for MetS diagnosis was a HOMA-IR value of 2.6. Based on this value, 16.3% of participants had IR. Adolescents with IR had a significantly higher prevalence of obesity, abdominal obesity, fasting hyperglycemia, and MetS compared to those who were not IR. FHDM, sarcopenia, obesity, and low adiponectin significantly increased the risk of IR. CONCLUSIONS In adolescents, HOMA-IR ≥ 2.6 was associated with greater cardiometabolic risk.
Collapse
Affiliation(s)
- R. Burrows
- Institute of Nutrition and Food Technology, University of Chile, Avenida El Líbano 5524, Macul, 7840390 Santiago, Chile
- *R. Burrows:
| | - P. Correa-Burrows
- Institute of Nutrition and Food Technology, University of Chile, Avenida El Líbano 5524, Macul, 7840390 Santiago, Chile
| | - M. Reyes
- Institute of Nutrition and Food Technology, University of Chile, Avenida El Líbano 5524, Macul, 7840390 Santiago, Chile
| | - E. Blanco
- Division of Child Development and Community Health, University of California, San Diego, 9500 Gilman Drive, MC 0927, La Jolla, San Diego, CA 92093-0927, USA
| | - C. Albala
- Institute of Nutrition and Food Technology, University of Chile, Avenida El Líbano 5524, Macul, 7840390 Santiago, Chile
| | - S. Gahagan
- Division of Child Development and Community Health, University of California, San Diego, 9500 Gilman Drive, MC 0927, La Jolla, San Diego, CA 92093-0927, USA
| |
Collapse
|
48
|
Reyes M, Borrás L, Seco A, Ferrer J. Identification and quantification of microbial populations in activated sludge and anaerobic digestion processes. Environ Technol 2015; 36:45-53. [PMID: 25409582 DOI: 10.1080/09593330.2014.934745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Eight different phenotypes were studied in an activated sludge process (AeR) and anaerobic digester (AnD) in a full-scale wastewater treatment plant by means of fluorescent in situ hybridization (FISH) and automated FISH quantification software. The phenotypes were ammonia-oxidizing bacteria, nitrite-oxidizing bacteria, denitrifying bacteria, phosphate-accumulating organisms (PAO), glycogen-accumulating organisms (GAO), sulphate-reducing bacteria (SRB), methanotrophic bacteria and methanogenic archaea. Some findings were unexpected: (a) Presence of PAO, GAO and denitrifiers in the AeR possibly due to unexpected environmental conditions caused by oxygen deficiencies or its ability to survive aerobically; (b) presence of SRB in the AeR due to high sulphate content of wastewater intake and possibly also due to digested sludge being recycled back into the primary clarifier; (c) presence of methanogenic archaea in the AeR, which can be explained by the recirculation of digested sludge and its ability to survive periods of high oxygen levels; (d) presence of denitrifying bacteria in the AnD which cannot be fully explained because the nitrate level in the AnD was not measured. However, other authors reported the existence of denitrifiers in environments where nitrate or oxygen was not present suggesting that denitrifiers can survive in nitrate-free anaerobic environments by carrying out low-level fermentation; (e) the results of this paper are relevant because of the focus on the identification of nearly all the significant bacterial and archaeal groups of microorganisms with a known phenotype involved in the biological wastewater treatment.
Collapse
Affiliation(s)
- M Reyes
- a Instituto de Ingeniería del Agua y Medio Ambiente, Universidad Politécnica de Valencia , Valencia , Spain
| | | | | | | |
Collapse
|
49
|
Pica A, Terribilini D, Porz N, Reyes M, Slotboom J, Wiest R, Bauer S. O2.03 * TARGET DELINEATION IN GLIOBLASTOMA: IS PREOPERATIVE AUTOMATIC COMPARABLE TO EXPERT BASED SEGMENTATION? Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
50
|
Porz N, Bauer S, Pica A, Schucht P, Beck J, Kumar Verma R, Slotboom J, Reyes M, Wiest R. Multi-modal Glioblastoma Segmentation: Man versus Machine. J Neurol Surg A Cent Eur Neurosurg 2014. [DOI: 10.1055/s-0034-1383771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|