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Marín-Palma D, Tabares-Guevara JH, Taborda N, Rugeles MT, Hernandez JC. Coarse particulate matter (PM10) induce an inflammatory response through the NLRP3 activation. J Inflamm (Lond) 2024; 21:15. [PMID: 38698414 PMCID: PMC11064351 DOI: 10.1186/s12950-024-00388-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 04/25/2024] [Indexed: 05/05/2024] Open
Abstract
INTRODUCTION PM exposure can induce inflammatory and oxidative responses; however, differences in these adverse effects have been reported depending on the chemical composition and size. Moreover, inflammatory mechanisms such as NLRP3 activation by PM10 have yet to be explored. OBJECTIVE To assess the impact of PM10 on cell cytotoxicity and the inflammatory response through in vitro and in vivo models. METHODOLOGY Peripheral blood mononuclear cells (PBMCs) from healthy donors were exposed to PM10. Cytotoxicity was determined using the LDH assay; the expression of inflammasome components and the production of pro-inflammatory cytokines were quantified through qPCR and ELISA, respectively; and the formation of ASC complexes was examined using confocal microscopy. For in vivo analysis, male C57BL6 mice were intranasally challenged with PM10 and bronchoalveolar lavage fluid was collected to determine cell counts and quantification of pro-inflammatory cytokines by ELISA. RNA was extracted from lung tissue, and the gene expression of inflammatory mediators was quantified. RESULTS PM10 exposure induced significant cytotoxicity at concentrations over 100 µg/mL. Moreover, PM10 enhances the gene expression and release of pro-inflammatory cytokines in PBMCs, particularly IL-1β; and induces the formation of ASC complexes in a dose-dependent manner. In vivo, PM10 exposure led to cell recruitment to the lungs, which was characterized by a significant increase in polymorphonuclear cells compared to control animals. Furthermore, PM10 induces the expression of several inflammatory response-related genes, such as NLRP3, IL-1β and IL-18, within lung tissue. CONCLUSION Briefly, PM10 exposure reduced the viability of primary cells and triggered an inflammatory response, involving NLRP3 inflammasome activation and the subsequent production of IL-1β. Moreover, PM10 induces the recruitment of cells to the lung and the expression of multiple cytokines; this phenomenon could contribute to epithelial damage and, thus to the development and exacerbation of respiratory diseases such as viral infections.
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Affiliation(s)
- Damariz Marín-Palma
- Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Jorge H Tabares-Guevara
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Natalia Taborda
- Grupo de Investigaciones Biomédicas Uniremington, Programa de Medicina, Facultad de Ciencias de la Salud, Corporación Universitaria Remington, Medellín, Colombia
| | - Maria T Rugeles
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Juan C Hernandez
- Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia.
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia.
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Ardila-Fierro KJ, Hernández JG. Intermediates in Mechanochemical Reactions. Angew Chem Int Ed Engl 2024; 63:e202317638. [PMID: 38179857 DOI: 10.1002/anie.202317638] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
Mechanochemical reactions offer methodological and environmental advantages for chemical synthesis, constantly attracting attention within the scientific community. Besides unmistakable sustainability advantages, the conditions under which mechanochemical reactions occur, namely solventless conditions, sometimes facilitate the isolation of otherwise labile or inaccessible products. Despite these advantages, limited knowledge exists regarding the mechanisms of these reactions and the types of intermediates involved. Nevertheless, in an expanding number of cases, ex situ and in situ monitoring techniques have allowed for the observation, characterization, and isolation of reaction intermediates in mechanochemical transformations. In this Minireview, we present a series of examples in which reactive intermediates have been detected in mechanochemical reactions spanning organic, organometallic, inorganic, and materials chemistry. Many of these intermediates were stabilized by non-covalent interactions, which played a pivotal role in guiding the chemical transformations. We believe that by uncovering and understanding such instances, the growing mechanochemistry community could find novel opportunities in catalysis and discover new mechanochemical reactions while achieving simplification in chemical reaction design.
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Affiliation(s)
- Karen J Ardila-Fierro
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
| | - José G Hernández
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
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Consuegra-Asprilla JM, Rodríguez-Echeverri C, Posada DH, Gómez BL, González Á. Patients with recurrent vulvovaginal candidiasis exhibit a decrease in both the fungicidal activity of neutrophils and the proliferation of peripheral blood mononuclear cells. Mycoses 2024; 67:e13720. [PMID: 38551114 DOI: 10.1111/myc.13720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/21/2024] [Accepted: 03/19/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Recurrent vulvovaginal candidiasis (RVVC) is an important and underestimated fungal infection. OBJECTIVE We aimed to determine the fungicidal and proliferative capacities of neutrophils and peripheral blood mononuclear cells (PBMCs), respectively and the clinical and microbiological characteristics of a cohort of Colombian patients diagnosed with RVVC. METHODS A cross-sectional study was conducted. A total of 66 women were included (40 diagnosed with RVVC and 26 healthy women [HW]). Demographic and clinical data were recorded. Vaginal fluid samples were obtained for isolation, identification and antifungal susceptibility testing of Candida species using selective culture media and the Vitek 2.0® system. Blood samples were also obtained to evaluate cell subpopulations; furthermore, neutrophils and PBMCs were isolated to determine their fungicidal and proliferative capacities, respectively. RESULTS The median age was 29 (IQR: 34-23) for RVVC and 24 (IQR: 30-23) for HW. Only two species of the genus Candida were identified: Candida albicans (92.5%) and Candida lusitaniae (7.5%). Resistance to fluconazole, voriconazole, flucytosine and amphotericin B was observed on six C. albicans isolates and one C. lusitaniae isolate. Only the family history of vulvovaginal candidiasis was associated with RVVC occurrence. The RVVC group exhibited a significantly higher number of neutrophils but with lower fungicidal activity in comparison to HW; likewise, PBMCs from RVVC patients presented a lower proliferation index when stimulated with C. albicans. CONCLUSION Contrary to what has been reported worldwide, in Colombian patients with RVVC, C. albicans was the main isolated species without increased antifungal resistance. The diminished fungicidal and proliferative capacities of neutrophils and PBMCs, respectively, could suggest a possible alteration in the innate and adaptive immune responses.
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Affiliation(s)
| | - Carolina Rodríguez-Echeverri
- Basic and Applied Microbiology Research Group (MICROBA), School of Microbiology, Universidad de Antioquia, Medellin, Colombia
| | - Daniela Herrera Posada
- Sexual Health and Cancer Group, School of Microbiology, Universidad de Antioquia, Medellin, Colombia
| | - Beatriz L Gómez
- Translational Microbiology and Emerging Diseases Research Group (MICROS), School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Ángel González
- Basic and Applied Microbiology Research Group (MICROBA), School of Microbiology, Universidad de Antioquia, Medellin, Colombia
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Sánchez J, Jaimes F, García E, Zakzuk J, Cardona R, Velasquez M. Risk calculator of the clinical response to antihistamines in chronic urticaria: Development and internal validation. PLoS One 2024; 19:e0295791. [PMID: 38394074 PMCID: PMC10889609 DOI: 10.1371/journal.pone.0295791] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 11/28/2023] [Indexed: 02/25/2024] Open
Abstract
Early detection of CSU patients with low probability of a clinical response with antihistamines could undergo prompt initiation of therapeutic alternatives. The aim of the study was to develop and internally validate a model for predicting the clinical response to antihistamines in adult patients with chronic spontaneous urticaria (CSU), who consult allergology and dermatology care centers. A cohort of CSU patients, recruited from four participating centers, were followed up for 12 months. Fifteen candidate variables were selected to be included in the multivariate model and then internal validation was done with bootstrap analysis with 1000 simulations. The outcome variable, clinical response to antihistamines, was evaluated with the UAS (Urticaria Activity Score) scale for seven days: "No response to antihistamines" was defined as UAS7 ≥7 points after at least one month with a maximum dose of antihistamines, while "Response to antiH1" was defined as UAS7 ≤6 points for at least three months with the use of antiH1. A total of 790 patients were included. Among the different models analyzed, the model that included age, angioedema, anxiety/depression, time with the disease, NSAIDs (Non-steroidal anti-inflammatory drugs) intolerance, and UAS7 baseline was considered the one with the best performance (accuracy 0.675, HL 0.87, AUC 0.727). The internal validation analyses demonstrated good consistency of the model. In conclusion, this prediction model identifies the probability of response to antihistamines in patients with chronic spontaneous urticaria. The model could be useful for a personalized therapeutic approach according to individual patient risk.
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Affiliation(s)
- Jorge Sánchez
- Group of Clinical and Experimental Allergy, "IPS University" Clinic, University of Antioquia, Medellín, Colombia
| | - Fabian Jaimes
- Internal Medicine Department, “San Vicente” Clinic, University of Antioquia, Medellín, Colombia
| | | | - Josefina Zakzuk
- Health Economics Research Group, ALZAK Foundation, Immunological Research Institute, University of Cartagena, Cartagena, Colombia
| | - Ricardo Cardona
- Group of Clinical and Experimental Allergy, "IPS University" Clinic, University of Antioquia, Medellín, Colombia
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Suárez LM, Hoyos L, Castellote-Borrell M, Guasch J, Orozco VH, Giraldo LF. pH-Sensitive Acrylic Terpolymers for the Coating of Orally Administered Drugs Used for Colonic Release. ACS Omega 2024; 9:204-214. [PMID: 38222599 PMCID: PMC10785650 DOI: 10.1021/acsomega.3c03437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 11/17/2023] [Accepted: 12/07/2023] [Indexed: 01/16/2024]
Abstract
Polymeric coatings are a promising option for the development of delivery systems for orally administered drugs. However, the gastrointestinal conditions to which they are subjected, which include low pH and solubility as well as peristaltic movements, can limit their applications. In this work, different formulations of polymeric coatings were produced using pH-sensitive materials consisting of copolymers of methyl acrylate, methyl methacrylate, and methacrylic acid. The polymers were synthesized by the emulsion polymerization technique, obtaining small average particle sizes (56-190 nm), molecular weights between 200,000 and 400,000 g/mol, and a glass transition temperature above 35 °C, which are suitable for film formation at room temperature. Thus, they were assessed as coatings for hydroxypropyl methylcellulose capsules (HPMC) using the immersion method, showing adequate capacity to protect the capsule at gastric pH (pH 1.2) and dissolve at the simulated intestinal pH (pH= 7.2). In particular, the higher the content of the acidic monomer, the higher the release time of the test molecule contained in the acrylic terpolymer-coated HPMC capsules proposed, which was a curcuminoid derivative due to their bright color and potential medical benefits. In addition, a minimum number of immersions was required for coating the HPMC capsules at high acidic concentrations, which further facilitates the delayed release needed for colonic treatment. However, too high proportions of methacrylic acid may result in cytotoxicity issues. Consequently, a biocompatible formulation containing a proportion of methyl acrylate, methyl methacrylate, and methacrylic acid of 7:3:3 is proposed as the most adequate for colonic release. Thus, by chemically modulating the molar percentages of the acrylic monomers, it was possible to obtain tailored acrylic terpolymer coatings with different characteristics and desired properties in order to modulate the release kinetics of an active substance in a colonic environment.
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Affiliation(s)
- Lina M. Suárez
- Laboratorio
de Investigación en Polímeros, Instituto de Química, Universidad de Antioquia, Medellín 050010, Colombia
- Dynamic
Biomimetics for Cancer Immunotherapy, ICMAB-CSIC, Campus UAB, Bellaterra 08193, Spain
| | - Lina Hoyos
- Grupo
de Investigación de Biología de Sistemas, Escuela de
Ciencias de la Salud, Universidad Pontificia
Bolivariana, Medellín 050031, Colombia
| | - Miquel Castellote-Borrell
- Institute
of Materials Science of Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra 08193, Spain
- Dynamic
Biomimetics for Cancer Immunotherapy, ICMAB-CSIC, Campus UAB, Bellaterra 08193, Spain
| | - Judith Guasch
- Institute
of Materials Science of Barcelona (ICMAB-CSIC), Campus UAB, Bellaterra 08193, Spain
- Dynamic
Biomimetics for Cancer Immunotherapy, ICMAB-CSIC, Campus UAB, Bellaterra 08193, Spain
- Centro
de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid 28029, Spain
| | - Víctor H. Orozco
- Laboratorio
de Investigación en Polímeros, Instituto de Química, Universidad de Antioquia, Medellín 050010, Colombia
| | - Luis F. Giraldo
- Laboratorio
de Investigación en Polímeros, Instituto de Química, Universidad de Antioquia, Medellín 050010, Colombia
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Arias-Ortiz N, Rodríguez-Betancourt JD, Toro-Toro JE, Navarro-Lechuga É, Jurado-Fajardo DM, Cárdenas-Garzón K, Sánchez-Vásquez GI. The Impact of Health Inequities on Population-Based Breast Cancer Survival in a Colombian Population, 2008-2015. Cancer Control 2024; 31:10732748241244928. [PMID: 38557156 PMCID: PMC10986169 DOI: 10.1177/10732748241244928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 02/03/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024] Open
Abstract
OBJECTIVE To obtain breast cancer survival estimates in Manizales, Colombia, considering socioeconomic level, health insurance regime and residential area, while adjusting for age, histology and stage at diagnosis. METHODS Analytical cohort study based on breast cancer incident cases recorded by the Population-based Manizales Cancer Registry between 2008-2015. Patients were followed-up for 60 months. Cause-specific survival was calculated using the Kaplan-Meier method for variables of interest, with the Wilcoxon-Breslow-Gehan test for differences. Cox multivariate regression models were fitted. RESULTS 856 breast cancer cases were included. The 5-year cause-specific survival for the entire cohort was 78.2%. It was higher in women with special/exception health insurance, high socioeconomic level, <50 years old, ductal carcinoma, and stages I and II. Residential area did not impact survival. In Cox models, the subsidized health insurance regime (HR: 4.87 vs contributory) and low socioeconomic level (HR: 2.45 vs high) were predictors of the hazard of death in women with breast cancer, adjusted for age, histology, stage and interactions age-stage and insurance-stage. A positive interaction (synergistic effect modification) between health insurance regime and stage regarding to survival was observed. CONCLUSION Socioeconomic factors significantly contribute to the inequities in breast cancer survival, independent of the stage at diagnosis. This suggests the need for comprehensive interventions to remove barriers to accessing the health system. This research provides evidence of survival gaps mediated by certain social determinants of health and generates data on the overall performance of the Colombian health system.
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Affiliation(s)
- Nelson Arias-Ortiz
- Grupo de Investigación Promoción de la Salud y Prevención de la Enfermedad, Universidad de Caldas, Manizales, Colombia
- Departamento de Salud Pública, Universidad de Caldas, Manizales, Colombia
- Registro Poblacional de Cáncer de Manizales. Instituto de Investigaciones en Salud. Universidad de Caldas, Manizales, Colombia
| | - Juan David Rodríguez-Betancourt
- Registro Poblacional de Cáncer de Manizales. Instituto de Investigaciones en Salud. Universidad de Caldas, Manizales, Colombia
| | | | | | | | - Karen Cárdenas-Garzón
- Grupo de Investigación Infección y Cáncer, Universidad de Antioquia, Medellin, Colombia
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Martínez-Salazar S, Kramer EM, González F, Pabón-Mora N. Spatio-temporal expression of candidate genes for nectar spur development in Tropaeolum (Tropaeolaceae: Brassicales). Ann Bot 2023; 132:1205-1218. [PMID: 37864498 PMCID: PMC10902891 DOI: 10.1093/aob/mcad164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/30/2023] [Accepted: 10/16/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND AND AIMS Tropaeolaceae (Brassicales) comprise ~100 species native to South and Central America. Tropaeolaceae flowers have a nectar spur, formed by a late expansion and evagination of the fused proximal region of the perianth (i.e. the floral tube). This spur is formed in the domain of the tube oriented towards the inflorescence axis, which corresponds to the adaxial floral region. However, little is known about the molecular mechanisms responsible for the evolution of spurs in Tropaeolaceae. METHODS In this study, we examined the spatio-temporal expression of genes putatively responsible for differential patterns of cell division between the adaxial and abaxial floral regions in Tropaeolaceae. These genes include previously identified TCP and KNOX transcription factors and the cell division marker HISTONE H4 (HIS4). KEY RESULTS We found a TCP4 homologue concomitantly expressed with spur initiation and elaboration. Tropaeolaceae possess two TCP4-like (TCP4L) copies, as a result of a Tropaeolaceae-specific duplication. The two copies (TCP4L1 and TCP4L2) in Tropaeolum longifolium show overlapping expression in the epidermis of reproductive apices (inflorescence meristems) and young floral buds, but only TlTCP4L2 shows differential expression in the floral tube at early stages of spur formation, restricted to the adaxial region. This adaxial expression of TlTCP4L2 overlaps with the expression of TlHIS4. Later in development, only TlTCP4L2 is expressed in the nectariferous tissue of the spur. CONCLUSIONS Based on these results, we hypothesize that Tropaeolaceae TCP4L genes had a plesiomorphic role in epidermal development and that, after gene duplication, TCP4L2 acquired a new function in spur initiation and elaboration. To better understand spur evolution in Tropaeolaceae, it is critical to expand developmental genetic studies to their sister group, the Akaniaceae, which possess simultaneously an independent duplication of TCP4L genes and a spurless floral tube.
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Affiliation(s)
- Sebastián Martínez-Salazar
- Instituto de Biología, Universidad de Antioquia, Medellín 050010, Colombia
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
| | - Elena M Kramer
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
| | - Favio González
- Universidad Nacional de Colombia, Facultad de Ciencias, Instituto de Ciencias Naturales, Sede Bogotá 111321, Colombia
| | - Natalia Pabón-Mora
- Instituto de Biología, Universidad de Antioquia, Medellín 050010, Colombia
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Suárez-Baron H, Alzate JF, Ambrose BA, Pelaz S, González F, Pabón-Mora N. Comparative morphoanatomy and transcriptomic analyses reveal key factors controlling floral trichome development in Aristolochia (Aristolochiaceae). J Exp Bot 2023; 74:6588-6607. [PMID: 37656729 DOI: 10.1093/jxb/erad345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 08/30/2023] [Indexed: 09/03/2023]
Abstract
Trichomes are specialized epidermal cells in aerial plant parts. Trichome development proceeds in three stages, determination of cell fate, specification, and morphogenesis. Most genes responsible for these processes have been identified in the unicellular branched leaf trichomes from the model Arabidopsis thaliana. Less is known about the molecular basis of multicellular trichome formation across flowering plants, especially those formed in floral organs of early diverging angiosperms. Here, we aim to identify the genetic regulatory network (GRN) underlying multicellular trichome development in the kettle-shaped trap flowers of Aristolochia (Aristolochiaceae). We selected two taxa for comparison, A. fimbriata, with trichomes inside the perianth, which play critical roles in pollination, and A. macrophylla, lacking specialized trichomes in the perianth. A detailed morphoanatomical characterization of floral epidermis is presented for the two species. We compared transcriptomic profiling at two different developmental stages in the different perianth portions (limb, tube, and utricle) of the two species. Moreover, we present a comprehensive expression map for positive regulators and repressors of trichome development, as well as cell cycle regulators. Our data point to extensive modifications in gene composition, expression, and putative roles in all functional categories when compared with model species. We also record novel differentially expressed genes (DEGs) linked to epidermis patterning and trichome development. We thus propose the first hypothetical genetic regulatory network (GRN) underlying floral multicellular trichome development in Aristolochia, and pinpoint key factors responsible for the presence and specialization of floral trichomes in phylogenetically distant species of the genus.
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Affiliation(s)
- Harold Suárez-Baron
- Department of Natural Sciences and Mathematics, Pontificia Universidad Javeriana Cali, Cali, Colombia
- Instituto de Biología, Universidad de Antioquia, Medellín, Colombia
| | - Juan F Alzate
- Centro Nacional de Secuenciación Genómica (CNSG), Sede de Investigación Universitaria, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | | | - Soraya Pelaz
- Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, Barcelona, Spain
- ICREA (Institució Catalana de Recerca i Estudis Avançats), Barcelona, Spain
| | - Favio González
- Universidad Nacional de Colombia, Sede Bogotá Facultad de Ciencias, Instituto de Ciencias Naturales, Bogotá, Colombia
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Muñoz-Losada K, Da Costa KM, Muñoz-Castiblanco T, Mejía-Giraldo JC, Previato JO, Mendonça-Previato L, Puertas-Mejía MÁ. Glycolipids from Sargassum filipendula, a Natural Alternative for Overcoming ABC Transporter-Mediated MDR in Cancer. Chem Biodivers 2023; 20:e202301058. [PMID: 37747792 DOI: 10.1002/cbdv.202301058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 09/27/2023]
Abstract
Chemotherapy is a widely used strategy to treat cancer, a disease that causes millions of deaths each year. However, its efficacy is reduced by the overexpression of ABC transporters, which are proteins that expel the drugs used in chemotherapy and involved in the multidrug resistance (MDR). Glycolipids have been identified as potential inhibitors of ABC transporters. Algae of the genus Sargassum contain high levels of glycolipids, making them a promising therapeutic alternative against the MDR phenotype. Sargassum filipendula glycolipids were obtained by exhaustive maceration with chloroform/methanol, purified by column and thin layer chromatography, and then characterized by FTIR, NMR, and LC-MS. Cell viability by PI labeling and inhibition of ABC transporters were analyzed by flow cytometry. Assessment of resistance reversal was determined by MTT assay. Ten sulfoquinovosylglycerol-type compounds were found, and six of them are reported for the first time. In particular, moiety 4 (GL-4) showed strong and moderate inhibitory activity against ABCC1 and ABCB1 transporters respectively. Treatment of GL-4 in combination with the antineoplastic drug vincristine sensitized Lucena-1 cell model to drug and reversed the MDR phenotype. This is the first report of glycolipids isolated from S. filipendula capable of inhibiting ABC transporters and thus overcoming acquired drug resistance.
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Affiliation(s)
- Kelly Muñoz-Losada
- Grupo de Investigación en Compuestos Funcionales, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, 050010, Colombia
| | - Kelli Monteiro Da Costa
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, 21941-902, Brasil
| | - Tatiana Muñoz-Castiblanco
- Grupo de Investigación en Compuestos Funcionales, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, 050010, Colombia
| | - Juan Camilo Mejía-Giraldo
- Grupo de Investigación en Compuestos Funcionales, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, 050010, Colombia
- Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, 050010, Colombia
| | - José Osvaldo Previato
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, 21941-902, Brasil
| | - Lucia Mendonça-Previato
- Laboratório de Glicobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, 21941-902, Brasil
| | - Miguel Ángel Puertas-Mejía
- Grupo de Investigación en Compuestos Funcionales, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, 050010, Colombia
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Madrigal Y, Alzate JF, Pabón-Mora N. Evolution of major flowering pathway integrators in Orchidaceae. Plant Reprod 2023:10.1007/s00497-023-00482-7. [PMID: 37823912 DOI: 10.1007/s00497-023-00482-7] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/10/2023] [Indexed: 10/13/2023]
Abstract
The Orchidaceae is a mega-diverse plant family with ca. 29,000 species with a large variety of life forms that can colonize transitory habitats. Despite this diversity, little is known about their flowering integrators in response to specific environmental factors. During the reproductive transition in flowering plants a vegetative apical meristem (SAM) transforms into an inflorescence meristem (IM) that forms bracts and flowers. In model grasses, like rice, a flowering genetic regulatory network (FGRN) controlling reproductive transitions has been identified, but little is known in the Orchidaceae. In order to analyze the players of the FRGN in orchids, we performed comprehensive phylogenetic analyses of CONSTANS-like/CONSTANS-like 4 (COL/COL4), FLOWERING LOCUS D (FD), FLOWERING LOCUS C/FRUITFULL (FLC/FUL) and SUPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1) gene lineages. In addition to PEBP and AGL24/SVP genes previously analyzed, here we identify an increase of orchid homologs belonging to COL4, and FUL gene lineages in comparison with other monocots, including grasses, due to orchid-specific gene lineage duplications. Contrariwise, local duplications in Orchidaceae are less frequent in the COL, FD and SOC1 gene lineages, which points to a retention of key functions under strong purifying selection in essential signaling factors. We also identified changes in the protein sequences after such duplications, variation in the evolutionary rates of resulting paralogous clades and targeted expression of isolated homologs in different orchids. Interestingly, vernalization-response genes like VERNALIZATION1 (VRN1) and FLOWERING LOCUS C (FLC) are completely lacking in orchids, or alternatively are reduced in number, as is the case of VERNALIZATION2/GHD7 (VRN2). Our findings point to non-canonical factors sensing temperature changes in orchids during reproductive transition. Expression data of key factors gathered from Elleanthus auratiacus, a terrestrial orchid in high Andean mountains allow us to characterize which copies are actually active during flowering. Altogether, our data lays down a comprehensive framework to assess gene function of a restricted number of homologs identified more likely playing key roles during the flowering transition, and the changes of the FGRN in neotropical orchids in comparison with temperate grasses.
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Affiliation(s)
- Yesenia Madrigal
- Facultad de Ciencias Exactas y Naturales, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia
| | - Juan F Alzate
- Facultad de Medicina, Centro Nacional de Secuenciación Genómica, Sede de Investigación Universitaria, Universidad de Antioquia, Medellín, Colombia
| | - Natalia Pabón-Mora
- Facultad de Ciencias Exactas y Naturales, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia.
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11
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Restrepo-Mesa SL, Correa Guzmán N, Manjarrés Correa LM, Duque Franco L, Bergeron G. Food and nutrient intake of adolescent women in Medellín, Colombia. Ann N Y Acad Sci 2023; 1528:77-84. [PMID: 37720962 DOI: 10.1111/nyas.15047] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
Nutritional imbalance in adolescent girls causes alterations in health, reproductive cycles, and fetal outcomes of future generations. To evaluate the dietary pattern and prevalence of inadequate nutrient intake, a 24-hour multi-step food recall was carried out among 793 adolescent women (14-20 years old) from Medellin, Colombia. Their dietary pattern was characterized by lower than recommended intakes of fruits and vegetables (CRI 0.4, AMD 0.2), dairy (CRI 0.5, AMD 0.2), and proteins (CRI 0.8, AMD 0.3), while starches (CRI 1.2, AMD 0.4), fats (CRI 1.1, AMD 0.6), and sugars (CRI 1.0, AMD 0.5) were at similar or higher levels than recommendations. A high risk of deficiency was found in the usual intake of energy (53.0%), protein (39.8%), calcium (98.9%), folates (85.7%), iron (74.4%), thiamine (44.3%), vitamin C (31.3%), zinc (28.3%), vitamin A (23.4%), cyanocobalamin (17.3%), and pyridoxine (10.9%). A low risk of deficiency was noted in usual fiber intake (0.5%), and a higher than recommended intake was noted in saturated fat (100.0%) and simple carbohydrates (68.8%). Anecdotally, a large proportion of respondents saw decreases in their food consumption during the COVID-19 pandemic. These results suggest an urgent need for nutrition education programs to emphasize the importance of adequate nutrition among adolescent women.
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Affiliation(s)
- Sandra L Restrepo-Mesa
- Food and Human Nutrition Research Group, School of Nutrition and Dietetics, University of Antioquia, Antioquia, Colombia
| | - Nathalia Correa Guzmán
- Food and Human Nutrition Research Group, School of Nutrition and Dietetics, University of Antioquia, Antioquia, Colombia
| | - Luz M Manjarrés Correa
- Food and Human Nutrition Research Group, School of Nutrition and Dietetics, University of Antioquia, Antioquia, Colombia
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Arias-Gutiérrez MJ, Londoño-Sierra DC, Correa-Guzmán N, Restrepo-Mesa SL. Dietary intake assessment in a group of breastfeeding women in two populations of Antioquia, Colombia, 2021-2022. Rev Colomb Obstet Ginecol 2023; 74:214-224. [PMID: 37937909 PMCID: PMC10652765 DOI: 10.18597/rcog.4025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/15/2023] [Indexed: 11/09/2023]
Abstract
Objectives To describe the prevalence of the risk of under or overnutrition and the food intake pattern vis à vis the recommendations of the Ministry of Health and Social Protection and the Colombian Family Welfare Institute. Material and methods Descriptive cross-sectional study carried out in healthy women receiving care in two hospitals of eastern Antioquia, with food and nutrition security in accordance with the Latin American and Caribbean Food Security Scale (ELCSA), in the first trimester of breastfeeding, assessed between 2021 and 2022. The clinical record was used as the source of information. The sociodemographic, clinical, anthropometric characteristics, as well as dietary and micronutrient intake, were measured. Descriptive statistics were used. The prevalence of deficient or excessive energy intake and the food consumption score (FCS) are presented. The EVINDI v5, PC-SIDE v1.0, Stata 16.1 and Jasp 0.16.4 software packages were used. Results Overall, 30 breastfeeding women were included. The prevalence of the risk of deficient energy intake was 43 %, while the risk of excessive intake was 16 % and the risk of protein deficiency was 98 %. Intake exceeding the reference value for saturated fats was 86 %, and 72 % for simple carbohydrates. The consumption pattern was characterized by exceeding the recommendations for sugars (FCS = 1.29), milk and dairy products (FCS = 1.09), grains, roots, plantains and tubers (FCS = 1.04). Recommendations for the intake of fats (FCS = 0.70), meats, eggs, legumes, nuts, seeds (FCS = 0.49), fruits and vegetables (FCS = 0.41 were not met. Conclusions The food intake pattern identified is far from meeting the national guidelines, limiting macro and micronutrient intake and contributing to the intergenerational malnutrition cycle. Additional research in the country is essential in order to identify other intake patterns and drive political action.
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Hernández JG, Ardila-Fierro KJ, Gómez S, Stolar T, Rubčić M, Topić E, Hadad CZ, Restrepo A. The Role of Crystalline Intermediates in Mechanochemical Cyclorhodation Reactions Elucidated by in-Situ X-ray Powder Diffraction and Computation. Chemistry 2023; 29:e202301290. [PMID: 37347170 DOI: 10.1002/chem.202301290] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 06/23/2023]
Abstract
The occurrence of crystalline intermediates in mechanochemical reactions might be more widespread than previously assumed. For example, a recent study involving the acetate-assisted C-H activation of N-Heterocycles with [Cp*RhCl2 ]2 by ball milling revealed the formation of transient cocrystals between the reagents prior to the C-H activation step. However, such crystalline intermediates were only observed through stepwise intervallic ex-situ analysis, and their exact role in the C-H activation process remained unclear. In this study, we monitored the formation of discrete, stoichiometric cocrystals between benzo[h]quinoline and [Cp*RhCl2 ]2 by ball milling using in-situ synchrotron X-ray powder diffraction. This continuous analysis revealed an initial cocrystal that transformed into a second crystalline form. Computational studies showed that differences in noncovalent interactions made the [Cp*RhCl2 ]2 unit in the later-appearing cocrystal more reactive towards NaOAc. This demonstrated the advantage of cocrystal formation before the acetate-assisted metalation-deprotonation step, and how the net cooperative action of weak interactions between the reagents in mechanochemical experiments can lead to stable supramolecular assemblies, which can enhance substrate activation under ball-milling conditions. This could explain the superiority of some mechanochemical reactions, such as acetate-assisted C-H activation, compared to their solution-based counterparts.
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Affiliation(s)
- José G Hernández
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
| | - Karen J Ardila-Fierro
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
| | - Sara Gómez
- Scuola Normale Superiore, Classe di Scienze, Piazza dei Cavalieri 7, 56126, Pisa, Italy
| | - Tomislav Stolar
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia
| | - Mirta Rubčić
- Faculty of Science Department of Chemistry, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia
| | - Edi Topić
- Faculty of Science Department of Chemistry, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia
| | - Cacier Z Hadad
- Instituto de Química, Facultad de Ciencias Exactas y Naturales Universidad de Antioquia, UdeA, Calle 70 No 52-21, Medellín, Colombia
| | - Albeiro Restrepo
- Instituto de Química, Facultad de Ciencias Exactas y Naturales Universidad de Antioquia, UdeA, Calle 70 No 52-21, Medellín, Colombia
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Estrada-Flórez SE, Serna-Galvis EA, Lee J, Torres-Palma RA. Systematic study of the synergistic and kinetics effects on the removal of contaminants of emerging concern from water by ultrasound in the presence of diverse oxidants. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-29189-y. [PMID: 37632616 DOI: 10.1007/s11356-023-29189-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 08/01/2023] [Indexed: 08/28/2023]
Abstract
The enhancement of the ultrasound system by adding diverse oxidants to remove a model contaminant (acetaminophen, ACE) in water was investigated. Different parameters were evaluated to study their effect on both the degradation kinetics and the synergy of the combination. The variables studied were the ultrasonic frequency (575, 858, and 1135 kHz), type of oxidant (hydrogen peroxide, sodium peroxydisulfate (or persulfate, PDS), and potassium peroxymonosulfate (PMS)), ACE concentration (4, 8, and 40 µM), and oxidant concentration (0.01, 0.1, 1, and 5 mM). Particular interest was placed on synergistic effects, implying that one process (or both) is activated by the other to lead to greater efficiency. Interestingly, the parameters that led to the higher synergistic effects did not always lead to the most favorable degradation kinetics. An increase in ACE removal of 20% was obtained using the highest frequency studied (1135 kHz), PMS 0.1 mM, and the highest concentration of ACE (40 µM). The intensification of degradation was mainly due to the ability of ultrasound to activate oxidants and produce extra hydroxyl radicals (HO•) or sulfate radicals (SO4•-). Under these conditions, treatment of ACE spiked into seawater, hospital wastewater, and urine was performed. The hospital wastewater matrix inhibited ACE degradation slightly, while the urine components inhibited the pollutant degradation completely. The inhibition was mainly attributed to the competing organic matter in the effluents for the sono-generated radical species. On the contrary, the removal of ACE in seawater was significantly intensified due to "salting out" effects and the production of the strong oxidant HOCl from the reaction of chloride ions with PMS.
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Affiliation(s)
- Sandra E Estrada-Flórez
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Efraím A Serna-Galvis
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
- Grupo de Catalizadores y Adsorbentes (CATALAD), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
| | - Judy Lee
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford, GU2 7XH, United Kingdom
| | - Ricardo A Torres-Palma
- Grupo de Investigación en Remediación Ambiental y Biocatálisis (GIRAB), Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
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15
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Li Y, Xiong Z, Zhang M, Hysi PG, Qian Y, Adhikari K, Weng J, Wu S, Du S, Gonzalez-Jose R, Schuler-Faccini L, Bortolini MC, Acuna-Alonzo V, Canizales-Quinteros S, Gallo C, Poletti G, Bedoya G, Rothhammer F, Wang J, Tan J, Yuan Z, Jin L, Uitterlinden AG, Ghanbari M, Ikram MA, Nijsten T, Zhu X, Lei Z, Jia P, Ruiz-Linares A, Spector TD, Wang S, Kayser M, Liu F. Combined genome-wide association study of 136 quantitative ear morphology traits in multiple populations reveal 8 novel loci. PLoS Genet 2023; 19:e1010786. [PMID: 37459304 PMCID: PMC10351707 DOI: 10.1371/journal.pgen.1010786] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 05/16/2023] [Indexed: 07/20/2023] Open
Abstract
Human ear morphology, a complex anatomical structure represented by a multidimensional set of correlated and heritable phenotypes, has a poorly understood genetic architecture. In this study, we quantitatively assessed 136 ear morphology traits using deep learning analysis of digital face images in 14,921 individuals from five different cohorts in Europe, Asia, and Latin America. Through GWAS meta-analysis and C-GWASs, a recently introduced method to effectively combine GWASs of many traits, we identified 16 genetic loci involved in various ear phenotypes, eight of which have not been previously associated with human ear features. Our findings suggest that ear morphology shares genetic determinants with other surface ectoderm-derived traits such as facial variation, mono eyebrow, and male pattern baldness. Our results enhance the genetic understanding of human ear morphology and shed light on the shared genetic contributors of different surface ectoderm-derived phenotypes. Additionally, gene editing experiments in mice have demonstrated that knocking out the newly ear-associated gene (Intu) and a previously ear-associated gene (Tbx15) causes deviating mouse ear morphology.
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Affiliation(s)
- Yi Li
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, China
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China
| | - Ziyi Xiong
- Department of Genetic Identification, Erasmus MC, University Medical Center, the Netherlands
- Department of Epidemiology, Erasmus MC, University Medical Center, the Netherlands
| | - Manfei Zhang
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, China
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, China
| | - Pirro G. Hysi
- Department of Twin Research and Genetic Epidemiology, King’s College London, United Kingdom
| | - Yu Qian
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China
- Beijing No.8 High School, Beijing, China
| | - Kaustubh Adhikari
- Department of Genetics, Evolution and Environment, and UCL Genetics Institute, University College London, United Kingdom
- School of Mathematics and Statistics, Faculty of Science, Technology, Engineering and Mathematics, The Open University, United Kingdom
| | - Jun Weng
- Center for Biometrics and Security Research & National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, China
| | - Sijie Wu
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, China
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, China
- Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, China
| | - Siyuan Du
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, China
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
- University of Chinese Academy of Sciences, China
| | - Rolando Gonzalez-Jose
- Instituto Patagonico de Ciencias Sociales y Humanas, Centro Nacional Patagonico, CONICET, Argentina
| | | | | | - Victor Acuna-Alonzo
- Molecular Genetics Laboratory, National School of Anthropology and History, Mexico
| | - Samuel Canizales-Quinteros
- Unidad de Genomica de Poblaciones Aplicada a la Salud, Facultad de Quimica, UNAM-Instituto Nacional de Medicina Genomica, Mexico
| | - Carla Gallo
- Laboratorios de Investigacion y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Peru
| | - Giovanni Poletti
- Laboratorios de Investigacion y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Peru
| | - Gabriel Bedoya
- GENMOL (Genetica Molecular), Universidad de Antioquia, Medellin, Colombia
| | | | - Jiucun Wang
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, China
- Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, China
| | - Jingze Tan
- Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, China
| | - Ziyu Yuan
- Fudan-Taizhou Institute of Health Sciences, China
| | - Li Jin
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, China
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, China
- Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, China
- Fudan-Taizhou Institute of Health Sciences, China
| | - André G. Uitterlinden
- Department of Epidemiology, Erasmus MC, University Medical Center, the Netherlands
- Department of Internal Medicine, Erasmus MC, University Medical Center, the Netherlands
| | - Mohsen Ghanbari
- Department of Epidemiology, Erasmus MC, University Medical Center, the Netherlands
| | - M. Arfan Ikram
- Department of Epidemiology, Erasmus MC, University Medical Center, the Netherlands
| | - Tamar Nijsten
- Department of Dermatology, Erasmus MC, University Medical Center, the Netherlands
| | - Xiangyu Zhu
- Center for Biometrics and Security Research & National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, China
- School of Artificial Intelligence, University of Chinese Academy of Sciences, China
| | - Zhen Lei
- Center for Biometrics and Security Research & National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, China
- School of Artificial Intelligence, University of Chinese Academy of Sciences, China
| | - Peilin Jia
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China
| | - Andres Ruiz-Linares
- Department of Genetics, Evolution and Environment, and UCL Genetics Institute, University College London, United Kingdom
- Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Fudan University, China
- Aix-Marseille Universite, CNRS, EFS, ADES, France
| | - Timothy D. Spector
- Department of Twin Research and Genetic Epidemiology, King’s College London, United Kingdom
| | - Sijia Wang
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, China
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, China
| | - Manfred Kayser
- Department of Genetic Identification, Erasmus MC, University Medical Center, the Netherlands
| | - Fan Liu
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, China
- Department of Genetic Identification, Erasmus MC, University Medical Center, the Netherlands
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16
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Velez-Zea A, Barrera-Ramírez JF. Color multilayer holographic near-eye augmented reality display. Sci Rep 2023; 13:10651. [PMID: 37391489 DOI: 10.1038/s41598-023-36128-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/30/2023] [Indexed: 07/02/2023] Open
Abstract
This study demonstrates a full-color near-eye holographic display capable of superimposing color virtual scenes with 2D, 3D, and multiple objects with extended depth upon a real scene, which also has the ability to present different 3D information depending on the focus of the user's eyes using a single computer-generated hologram per color channel. Our setup makes use of a hologram generation method based on two-step propagation and the singular value decomposition of the Fresnel transform impulse response function to efficiently generate the holograms of the target scene. Then, we test our proposal by implementing a holographic display that makes use of a phase-only spatial light modulator and time-division multiplexing for color reproduction. We demonstrate the superior quality and computation speed of this approach compared with other hologram generation techniques with both numerical and experimental results.
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Affiliation(s)
- Alejandro Velez-Zea
- Grupo de Óptica y Fotónica, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia.
| | - John Fredy Barrera-Ramírez
- Grupo de Óptica y Fotónica, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
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17
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González-Ramírez MI, Cardona YT, Agudelo MC, López C, Florez-Acosta JJ, Agudelo-Gamboa S, Garai J, Li L, Orozco-Castaño CA, Zabaleta J, Sánchez GI. miRNAs signature as potential biomarkers for cervical precancerous lesions in human papillomavirus positive women. Sci Rep 2023; 13:9822. [PMID: 37330541 PMCID: PMC10276834 DOI: 10.1038/s41598-023-36421-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 06/03/2023] [Indexed: 06/19/2023] Open
Abstract
Biomarkers to identify women at risk of cervical cancer among those with high-risk HPV infection (hrHPV+) are needed. Deregulated expression of microRNAs (miRNAs) contributes to hrHPV-induced cervical carcinogenesis. We aimed at identifying miRNAs with the capacity to distinguish high (CIN2+) and low (≤ CIN1) grade cervical lesions. We sequenced miRNA libraries from Formalin-Fixed Paraffin-Embedded (FFPE) tissues from women with CIN2+ (n = 10) and age-matched women with ≤ CIN1 (n = 10), randomly and retrospectively selected from a trial that followed women for 24 months after a hrHPV+ test at the screening visit. Five miRNAs differentially expressed were validated by RT-qPCR in an independent set of FFPE tissues with a reviewed diagnosis of CIN2+ (n = 105) and ≤ CIN1 (n = 105). The Ingenuity Pathway Analysis (IPA) was conducted to identify mRNAs inversely correlated with the top 25 differentially expressed miRNAs. Inverse correlations with 401 unique mRNA targets were identified for fourteen of the top 25 differentially expressed miRNAs. Eleven of these miRNAs targeted 26 proteins of pathways deregulated by HPV E6 and E7 oncoproteins and two of them, miR-143-5p and miR-29a-3p, predicted CIN2+ and CIN3+ in the independent validation by RT-qPCR of FFPE tissues from hrHPV-positive women.
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Affiliation(s)
- Martha I González-Ramírez
- Infection and Cancer Group, School of Medicine, Universidad de Antioquia, Cra 51D No 62-29 Lab 219, Medellín, 050010, Antioquia, Colombia
| | - Yurley T Cardona
- Infection and Cancer Group, School of Medicine, Universidad de Antioquia, Cra 51D No 62-29 Lab 219, Medellín, 050010, Antioquia, Colombia
| | - María C Agudelo
- Infection and Cancer Group, School of Medicine, Universidad de Antioquia, Cra 51D No 62-29 Lab 219, Medellín, 050010, Antioquia, Colombia
| | - Carolina López
- Department of Pathology, Universidad de Antioquia, Medellín, 050010, Antioquia, Colombia
| | - Juan J Florez-Acosta
- Infection and Cancer Group, School of Medicine, Universidad de Antioquia, Cra 51D No 62-29 Lab 219, Medellín, 050010, Antioquia, Colombia
| | - Samuel Agudelo-Gamboa
- Infection and Cancer Group, School of Medicine, Universidad de Antioquia, Cra 51D No 62-29 Lab 219, Medellín, 050010, Antioquia, Colombia
| | - Jone Garai
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, 70112, USA
| | - Li Li
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, 70112, USA
| | - Carlos A Orozco-Castaño
- Infection and Cancer Group, School of Medicine, Universidad de Antioquia, Cra 51D No 62-29 Lab 219, Medellín, 050010, Antioquia, Colombia
- School of Health and Sport Sciences, Fundación Universitaria del Área Andina, Bogotá, 110111, Cundinamarca, Colombia
| | - Jovanny Zabaleta
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, 70112, USA
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center, New Orleans, LA, 70112, USA
| | - Gloria I Sánchez
- Infection and Cancer Group, School of Medicine, Universidad de Antioquia, Cra 51D No 62-29 Lab 219, Medellín, 050010, Antioquia, Colombia.
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18
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Cardona-Arias JA. Synthesis of Qualitative Evidence on Malaria in Pregnancy, 2005-2022: A Systematic Review. Trop Med Infect Dis 2023; 8:tropicalmed8040235. [PMID: 37104360 PMCID: PMC10145031 DOI: 10.3390/tropicalmed8040235] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 04/28/2023] Open
Abstract
Qualitative research on malaria in pregnancy (MiP) is incipient, therefore its contextual, experiential and symbolic associated factors are unknown. This study systematizes the qualitative research on MiP, describes knowledge, perceptions and behaviors about MiP, and compiles individual, socioeconomic, cultural and health system determinants of MiP through a meta-synthesis in 10 databases. A total of 48 studies were included with 2600 pregnant women, 1300 healthcare workers, and 2200 relatives or community members. Extensive knowledge was demonstrated on ITN and case management, but it was lacking on SP-IPTp, risks and consequences of MiP. Attitudes were negative towards ANC and MiP prevention. There were high trustfulness scores and preference for traditional medicine and distrust in the safety of drugs. The main determinants of the Health System were rationing, copayments, delay in payment to clinics, high out-of-pocket expenses, shortage, low workforce and work overload, shortcomings in care quality, low knowledges of healthcare workers on MiP and negative attitude in care. The socioeconomic and cultural determinants were poverty and low educational level of pregnant women, distance to the hospital, patriarchal-sexist gender roles, and predominance of local conceptions on maternal-fetal-neonatal health. The meta-synthesis demonstrates the difficulty to detect MiP determinants and the importance of performed qualitative research before implementing MiP strategies to understand the multidimensionality of the disease.
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Affiliation(s)
- Jaiberth Antonio Cardona-Arias
- Research Group Salud y Comunidad-César Uribe Piedrahita, School of Microbiology, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellin 050010, Colombia
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19
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Vélez-Vargas LC, Santa-González GA, Uribe D, Henao-Castañeda IC, Pedroza-Díaz J. In Vitro and In Silico Study on the Impact of Chlorogenic Acid in Colorectal Cancer Cells: Proliferation, Apoptosis, and Interaction with β-Catenin and LRP6. Pharmaceuticals (Basel) 2023; 16:276. [PMID: 37259421 PMCID: PMC9960681 DOI: 10.3390/ph16020276] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/23/2023] [Accepted: 02/01/2023] [Indexed: 09/12/2023] Open
Abstract
Colorectal cancer mortality rate and highly altered proteins from the Wnt/β-catenin pathway increase the scientific community's interest in finding alternatives for prevention and treatment. This study aims to determine the biological effect of chlorogenic acid (CGA) on two colorectal cancer cell lines, HT-29 and SW480, and its interactions with β-catenin and LRP6 to elucidate a possible modulatory mechanism on the Wnt/β-catenin pathway. These effects were determined by propidium iodide and DiOC6 for mitochondrial membrane permeability, MitoTracker Red for mitochondrial ROS production, DNA content for cell distribution on cell cycle phases, and molecular docking for protein-ligand interactions and binding affinity. Here, it was found that CGA at 2000 µM significantly affects cell viability and causes DNA fragmentation in SW480 cells rather than in HT-29 cells, but in both cell lines, it induces ROS production. Additionally, CGA has similar affinity and interactions for LRP6 as niclosamide but has a higher affinity for both β-catenin sites than C2 and iCRT14. These results suggest a possible modulatory role of CGA over the Wnt/β-catenin pathway in colorectal cancer.
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Affiliation(s)
- Laura Catalina Vélez-Vargas
- Grupo de Investigación e Innovación Biomédica, Facultad de Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, Medellin 050012, Colombia
- Productos Naturales Marinos, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia, Medellin 050010, Colombia
| | - Gloria A. Santa-González
- Grupo de Investigación e Innovación Biomédica, Facultad de Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, Medellin 050012, Colombia
| | - Diego Uribe
- Grupo de Investigación e Innovación Biomédica, Facultad de Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, Medellin 050012, Colombia
| | - Isabel C. Henao-Castañeda
- Productos Naturales Marinos, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia, Medellin 050010, Colombia
| | - Johanna Pedroza-Díaz
- Grupo de Investigación e Innovación Biomédica, Facultad de Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, Medellin 050012, Colombia
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20
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Suaza-Gaviria V, Mesa-Vanegas AM, Ocampo-Jiménez O, Monsalve-Fonnegra ZI. Antioxidant Activity and Phytopathogenic Control of Extracts and Fraction from Struthanthus calophyllus A.C.Sm. (Loranthaceae). Chem Biodivers 2023; 20:e202200830. [PMID: 36650106 DOI: 10.1002/cbdv.202200830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023]
Abstract
Phytopathogenic microorganisms cause oxidative stress in host plants, thus affecting agricultural crops. Such stress could be controlled by antioxidant compounds from parasitic plants, given their antioxidant power. This article reports an evaluation of Struthanthus calophyllus antimicrobial activity and antioxidant mechanism by testing different polarity extracts. Antimicrobial activity was evaluated against phytopathogens bacteria (e. g., Erwinia, Pectobacterium, Xanthomonas) using the agar diffusion method. Pectobacterium and Xanthomonas presented growth inhibition zones similar to streptomycin control. Antioxidant activity was determined by measuring total phenol content, DPPH⋅, and ABTS⋅+ radicals-scavenging inhibition percentage (IP). Most polar extracts presented 76,9-95,9 % IP, which correlates with its phenolic content. Besides, Nuclear Magnetic Resonance in a V14-1 sub-fraction from stem ethanolic extract, chose one for highest yield percentage, highest metabolites presence, and antimicrobial activity, showed triterpenic compounds mixture (α-amyrin, β-amyrin and 24-methylenecycloartanol). Findings in this study are among the first reports for S. calophyllus, even the chemical characterization, that confirm its strong antioxidant and antibacterial activities. Further molecular composition research about parasitic plants could show how unknown compounds may combat pathogenic microorganisms.
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Affiliation(s)
- Vanessa Suaza-Gaviria
- AgroBiotecnología Research Group, Instituto de Biología, Universidad de Antioquia, P.O. Box: 1226, Medellín, Colombia
| | - Ana María Mesa-Vanegas
- AgroBiotecnología Research Group, Instituto de Biología, Universidad de Antioquia, P.O. Box: 1226, Medellín, Colombia
| | - Omar Ocampo-Jiménez
- AgroBiotecnología Research Group, Instituto de Biología, Universidad de Antioquia, P.O. Box: 1226, Medellín, Colombia
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21
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Villarreal ME, Villa-Ochoa JA, Galleguillos J. Experiences of preservice mathematics teachers during their education in times of pandemic. ZDM 2022; 55:235-248. [PMID: 36619685 PMCID: PMC9804237 DOI: 10.1007/s11858-022-01461-4] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Due to the COVID-19 pandemic, educational institutions at all levels closed their doors and began to operate remotely. In this paper, we analyze the educational experiences of preservice mathematics teachers (PMTs) enrolled in mathematics teacher education programs from three South American universities, as the pandemic was unfolding. An exploratory study was conducted, based on an inductive and thematic qualitative text analysis of narratives written by 24 PMTs. Based on the study, we report on the following aspects: (1) experiences of PMTs in the passage to remote education (RE) mode (considering characteristics of remote classes-interactions, the rhythm of the class, teaching work-time management, home-classroom fusion, and physical and psychological discomfort), and (2) opportunities and limitation experienced by PMTs in relation to the use of technologies. The results of the study suggest the need to rethink teacher education programs regarding the integration of technologies in mathematics classes, the opportunities offered by hybrid education, and teacher education for distance teaching.
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Affiliation(s)
- Mónica E. Villarreal
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Matemática, Astronomía, Física y Computación - Universidad Nacional de Córdoba, Córdoba, Argentina
| | | | - Jeannette Galleguillos
- Instituto de Matemática, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
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22
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Sepulveda-Falla D, Sanchez JS, Almeida MC, Boassa D, Acosta-Uribe J, Vila-Castelar C, Ramirez-Gomez L, Baena A, Aguillon D, Villalba-Moreno ND, Littau JL, Villegas A, Beach TG, White CL, Ellisman M, Krasemann S, Glatzel M, Johnson KA, Sperling RA, Reiman EM, Arboleda-Velasquez JF, Kosik KS, Lopera F, Quiroz YT. Distinct tau neuropathology and cellular profiles of an APOE3 Christchurch homozygote protected against autosomal dominant Alzheimer's dementia. Acta Neuropathol 2022; 144:589-601. [PMID: 35838824 PMCID: PMC9381462 DOI: 10.1007/s00401-022-02467-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/21/2022] [Accepted: 07/01/2022] [Indexed: 01/22/2023]
Abstract
We describe in vivo follow-up PET imaging and postmortem findings from an autosomal dominant Alzheimer's disease (ADAD) PSEN1 E280A carrier who was also homozygous for the APOE3 Christchurch (APOE3ch) variant and was protected against Alzheimer's symptoms for almost three decades beyond the expected age of onset. We identified a distinct anatomical pattern of tau pathology with atypical accumulation in vivo and unusual postmortem regional distribution characterized by sparing in the frontal cortex and severe pathology in the occipital cortex. The frontal cortex and the hippocampus, less affected than the occipital cortex by tau pathology, contained Related Orphan Receptor B (RORB) positive neurons, homeostatic astrocytes and higher APOE expression. The occipital cortex, the only cortical region showing cerebral amyloid angiopathy (CAA), exhibited a distinctive chronic inflammatory microglial profile and lower APOE expression. Thus, the Christchurch variant may impact the distribution of tau pathology, modulate age at onset, severity, progression, and clinical presentation of ADAD, suggesting possible therapeutic strategies.
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Affiliation(s)
- Diego Sepulveda-Falla
- Molecular Neuropathology of Alzheimer's Disease, Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Justin S Sanchez
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Maria Camila Almeida
- Department of Molecular, Cellular and Developmental Biology, Neuroscience Research Institute, University of California, Santa Barbara, CA, 93106, USA
- Center for Natural and Human Sciences, Federal University of ABC, São Bernardo do Campo, SP, Brazil
| | - Daniela Boassa
- National Center for Microscopy and Imaging Research (NCMIR), San Diego School of Medicine (UCSD), University of California, La Jolla, San Diego, CA, 92093, USA
- Department of Neurosciences, San Diego School of Medicine (UCSD), University of California, La Jolla, San Diego, CA, 92093, USA
| | - Juliana Acosta-Uribe
- Department of Molecular, Cellular and Developmental Biology, Neuroscience Research Institute, University of California, Santa Barbara, CA, 93106, USA
| | - Clara Vila-Castelar
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Liliana Ramirez-Gomez
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Ana Baena
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Antioquia, Colombia
| | - David Aguillon
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Antioquia, Colombia
| | - Nelson David Villalba-Moreno
- Molecular Neuropathology of Alzheimer's Disease, Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jessica Lisa Littau
- Molecular Neuropathology of Alzheimer's Disease, Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andres Villegas
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Antioquia, Colombia
| | - Thomas G Beach
- Department of Neuropathology, Banner Sun Health Research Institute, Sun City, AZ, USA
| | - Charles L White
- Department of Pathology, Neuropathology Laboratory, University of Texas Southwestern Medical Center, Dallas, USA
| | - Mark Ellisman
- National Center for Microscopy and Imaging Research (NCMIR), San Diego School of Medicine (UCSD), University of California, La Jolla, San Diego, CA, 92093, USA
- Department of Neurosciences, San Diego School of Medicine (UCSD), University of California, La Jolla, San Diego, CA, 92093, USA
| | - Susanne Krasemann
- Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Experimental Pathology Core Facility, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Glatzel
- Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Keith A Johnson
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Reisa A Sperling
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Joseph F Arboleda-Velasquez
- Schepens Eye Research Institute of Mass Eye and Ear and Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Kenneth S Kosik
- Department of Molecular, Cellular and Developmental Biology, Neuroscience Research Institute, University of California, Santa Barbara, CA, 93106, USA
| | - Francisco Lopera
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Antioquia, Colombia
| | - Yakeel T Quiroz
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
- Grupo de Neurociencias de Antioquia, Facultad de Medicina, Universidad de Antioquia, Medellín, Antioquia, Colombia.
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23
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González-Cardenete MA, Hamulić D, Miquel-Leal FJ, González-Zapata N, Jimenez-Jarava OJ, Brand YM, Restrepo-Mendez LC, Martinez-Gutierrez M, Betancur-Galvis LA, Marín ML. Antiviral Profiling of C-18- or C-19-Functionalized Semisynthetic Abietane Diterpenoids. J Nat Prod 2022; 85:2044-2051. [PMID: 35969814 PMCID: PMC9425435 DOI: 10.1021/acs.jnatprod.2c00464] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Viral infections affect several million patients annually. Although hundreds of viruses are known to be pathogenic, only a few can be treated in the clinic with available antiviral drugs. Naturally based pharmacotherapy may be a proper alternative for treating viral diseases. Several natural and semisynthetic abietane-type diterpenoids have shown important antiviral activities. In this study, a biological evaluation of a number of either C-18- or C-19-functionalized known semisynthetic abietanes against Zika virus, Dengue virus, Herpes virus simplex type 1, and Chikungunya virus are reported. Semisynthetic abietane ferruginol and its analogue 18-(phthalimid-2-yl)ferruginol displayed broad-spectrum antiviral properties. The scale-up synthesis of this analogue has been optimized for further studies and development. This molecule displayed an EC50 between 5.0 and 10.0 μM against Colombian Zika virus strains and EC50 = 9.8 μM against Chikungunya virus. Knowing that this ferruginol analogue is also active against Dengue virus type 2 (EC50 = 1.4 μM, DENV-2), we can conclude that this compound is a promising broad-spectrum antiviral agent paving the way for the development of novel antivirals.
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Affiliation(s)
- Miguel A. González-Cardenete
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politècnica de Valencia-Consejo Superior de Investigaciones
Científicas, Avda
de los Naranjos s/n, 46022 Valencia, Spain
| | - Damir Hamulić
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politècnica de Valencia-Consejo Superior de Investigaciones
Científicas, Avda
de los Naranjos s/n, 46022 Valencia, Spain
| | - Francisco J. Miquel-Leal
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politècnica de Valencia-Consejo Superior de Investigaciones
Científicas, Avda
de los Naranjos s/n, 46022 Valencia, Spain
| | - Natalia González-Zapata
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politècnica de Valencia-Consejo Superior de Investigaciones
Científicas, Avda
de los Naranjos s/n, 46022 Valencia, Spain
| | - Orlando J. Jimenez-Jarava
- Grupo
de Investigaciones Dermatológicas, Instituto de Investigaciones
Médicas, Facultad de Medicina, Universidad
de Antioquia, 050010 Medellín, Colombia
| | - Yaneth M. Brand
- Grupo
de Investigaciones Dermatológicas, Instituto de Investigaciones
Médicas, Facultad de Medicina, Universidad
de Antioquia, 050010 Medellín, Colombia
| | - Laura C. Restrepo-Mendez
- Grupo
de Investigación en Ciencias Animales-GRICA, Universidad Cooperativa de Colombia, 680001 Bucaramanga, Colombia
| | - Marlen Martinez-Gutierrez
- Grupo
de Investigación en Ciencias Animales-GRICA, Universidad Cooperativa de Colombia, 680001 Bucaramanga, Colombia
- Línea
de Descubrimiento y Evaluación de Compuestos Antivirales, Grupo
de Investigación en Microbiología Básica y Aplicada
(MICROBA), Escuela de Microbiología, Universidad de Antioquia, 050010 Medellín, Colombia
| | - Liliana A. Betancur-Galvis
- Grupo
de Investigaciones Dermatológicas, Instituto de Investigaciones
Médicas, Facultad de Medicina, Universidad
de Antioquia, 050010 Medellín, Colombia
| | - Maria L. Marín
- Instituto
de Tecnología Química (UPV-CSIC), Universitat Politècnica de Valencia-Consejo Superior de Investigaciones
Científicas, Avda
de los Naranjos s/n, 46022 Valencia, Spain
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24
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Rueda E, Serna J, Uribe JI, Ramírez D, Jaramillo F, Osorio J, García H. Nonlinear Two-Photon Absorption in the Near-Infrared Band for Lead Bromide Perovskite Films Using an F-Scan Nonlinear Spectrometer. ACS Omega 2022; 7:29100-29105. [PMID: 36033660 PMCID: PMC9404478 DOI: 10.1021/acsomega.2c02967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
An F-scan nonlinear spectrometer is used to measure the two-photon absorption coefficient for CH3NH3PbBr3 perovskite films from 690 to 995 nm. This spectrometer uses an electrically focused tunable lens and a tunable femtosecond-pulse laser (Mai Tai-HP) with a resolution of 5 nm. Two-band models and saturation irradiance corrections are used to fit the experimental data. The nonlinear absorption in this wavelength range is of the order of cm/MW. We found that the best agreement between the experimental data, the reported values in the literature, and the theoretical model is obtained for an extended two-band model with irradiance saturation correction.
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Affiliation(s)
- Edgar Rueda
- Grupo
de Óptica y Fotónica, Instituto de Física, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 050010, Colombia
| | - Juan Serna
- Grupo
de Óptica y Espectroscopía, Centro de Ciencia Básica, Universidad Pontifícia Bolivariana, Cq. 1 No 70-01, Campus Laureles, Medellín 050031, Colombia
| | - Jose Ignacio Uribe
- Centro
de Investigación, Innovación y Desarrollo de Materiales—CIDEMAT,
Facultad de Ingeniería, Universidad
de Antioquia UdeA, Calle
70 No. 52-21, Medellín 050010, Colombia
- Grupo
de Estado Sólido, Instituto de Física, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 050010, Colombia
- Ingeniush,
Institución Universitaria Salazar y Herrera, Medellín 050034, Colombia
| | - Daniel Ramírez
- Centro
de Investigación, Innovación y Desarrollo de Materiales—CIDEMAT,
Facultad de Ingeniería, Universidad
de Antioquia UdeA, Calle
70 No. 52-21, Medellín 050010, Colombia
| | - Franklin Jaramillo
- Centro
de Investigación, Innovación y Desarrollo de Materiales—CIDEMAT,
Facultad de Ingeniería, Universidad
de Antioquia UdeA, Calle
70 No. 52-21, Medellín 050010, Colombia
| | - Jaime Osorio
- Grupo
de Estado Sólido, Instituto de Física, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 050010, Colombia
| | - Hernando García
- Department
of Physics, Southern Illinois University
Edwardsville, Edwardsville, Illinois 62026, United States
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25
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Cardona-Arias JA, Carmona-Fonseca J. Frequency of placental malaria and its associated factors in northwestern Colombia, pooled analysis 2009–2020. PLoS One 2022; 17:e0268949. [PMID: 35609045 PMCID: PMC9129008 DOI: 10.1371/journal.pone.0268949] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 05/12/2022] [Indexed: 11/18/2022] Open
Abstract
Knowledge about placental malaria (PM) is insufficient in the world, and incipient in Colombia where studies are few and recent. In this country, PM has been reported by Plasmodium vivax, Plasmodium falciparum, and mixed infection. The objective was to determine the frequency of PM and its associated clinical-epidemiological factors in mothers and neonates in northwestern Colombia, 2009–2020. A Retrospective pooled analysis with 602 placentas captured in five investigations. The diagnosis of PM was made with thick blood smear (TBS) and qPCR. The groups with and without PM were compared using the Chi-square test, Mann-Whitney test, and crude and adjusted prevalence ratios in a log-binomial model. The prevalence of PM was 27.7% with 92% (155/167) of submicroscopic cases; 41.3% by P. vivax, 44,3% by P. falciparum, and 14.4% by mixed infections. In the multivariate adjustment, PM was associated with the diagnosis of congenital malaria, low neonatal weight, gestational malaria, maternal anemia, previous malaria during pregnancy, and age between 25–43 years. This research is the investigation with the largest number of subjects for studying PM in Colombia, in the ecoepidemiological zone that produces more cases of malaria per year, finding a high prevalence of submicroscopic PM that caused serious maternal (anemia) and neonatal (congenital malaria and low neonatal weight) effects. The results show limitations in the timely diagnosis and treatment, given that the epidemiological surveillance program in Colombia is based on thick blood smear, which generates a substantial underestimation of the magnitude of PM, with serious effects and clinical risks. It is urgent to demand that the health authorities adopt measures such as prenatal control visits as soon as the pregnancy begins, monthly implementation of TBS, and active search for infected pregnant women in their homes and workplaces.
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Affiliation(s)
- Jaiberth Antonio Cardona-Arias
- School of Microbiology, University of Antioquia, Medellín, Colombia
- “Grupo de investigación César Uribe Piedrahíta”, Faculty of Medicine, University of Antioquia, Medellín, Colombia
- * E-mail:
| | - Jaime Carmona-Fonseca
- “Grupo de investigación César Uribe Piedrahíta”, Faculty of Medicine, University of Antioquia, Medellín, Colombia
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26
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Gutiérrez J, Chica EL, Pérez JF. Parametric Analysis of a Gasification-Based Cookstove as a Function of Biomass Density, Gasification Behavior, Airflow Ratio, and Design. ACS Omega 2022; 7:7481-7498. [PMID: 35284767 PMCID: PMC8908516 DOI: 10.1021/acsomega.1c05137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
The energy performance and emissions (carbon monoxide and total suspended particulate matter) of a biomass gasification-based cookstove under a modified water boiling test (WBT 4.2.3 protocol) were characterized here. The controllable process parameters analyzed were the biomass bulk density (pellets-WP and chips-WCH) and the combustion-air/gasification-air ratio (2.8, 3.0, and 3.2). Moreover, a design parameter of the cookstove was analyzed through two combustion chamber designs (combustion chambers 1 and 2). The cookstove was characterized in detail considering the complete cookstove (control volume 1), the combustion chamber (control volume 2), and the gasification process (control volume 3). The cookstove reached an average efficiency of 25.2% for pellets and 24.1% for chips. The best behavior for the cookstove was achieved when pellets were used, which is attributed to their higher bulk density and to the fact that during their gasification process, the biochar yield was 12% higher, while the biomass consumption decreased by 16% compared to the chips. The carbon monoxide specific emissions were 2.78 g/MJd for pellets and 2.75 g/MJd for chips. On average, the cookstove released total suspended particulate matter between 74.11 and 122.70 mg/MJd. The cookstove low emissions are ascribed to the proper combustion air flow and the combustion chamber design, which favored the mixing between producer gas and combustion air.
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Affiliation(s)
- Jonatan Gutiérrez
- Grupo
de Manejo Eficiente de la Energía—GIMEL, Facultad de
Ingeniería, Universidad de Antioquia, Calle 67, No. 53-108, Medellín 050010, Colombia
- Grupo
Energía Alternativa—GEA, Facultad de Ingeniería, Universidad de Antioquia, Calle 67, No. 53-108, Medellín 050010, Colombia
| | - Edwin Lenin Chica
- Grupo
Energía Alternativa—GEA, Facultad de Ingeniería, Universidad de Antioquia, Calle 67, No. 53-108, Medellín 050010, Colombia
| | - Juan F. Pérez
- Grupo
de Manejo Eficiente de la Energía—GIMEL, Facultad de
Ingeniería, Universidad de Antioquia, Calle 67, No. 53-108, Medellín 050010, Colombia
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Vélez-Gómez DE, Torres-Vellojín N, Grajales-Zapata JC, McEwen-Ochoa JG, Martínez A, Ramírez-Lopera V, Villegas-Castaño A. Prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae in the homeless population of Medellín, Colombia: a cross-sectional study. BMJ Open 2022; 12:e054966. [PMID: 35232786 PMCID: PMC8889321 DOI: 10.1136/bmjopen-2021-054966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To determine the prevalence of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) in the homeless population in Medellín, Colombia, using molecular diagnostic methods. It also intended to develop a demographic profile, exploring associated factors and the dynamics of the social and sexual interactions of this community. DESIGN Cross-sectional study. SETTING Two homeless care centres in Medellín, Colombia. PARTICIPANTS Homeless individuals that assisted to the main homeless care centres of Medellín, Colombia from 2017 to 2019. PRIMARY AND SECONDARY OUTCOME MEASURES The prevalence of CT and NG in this population using qPCR detection, factors associated with CT and NG infection, and the sociodemographic profile of the community. RESULTS The prevalence of CT infection was 19.2%, while that of NG was 22.6%. Furthermore, being a female was significantly correlated to CT infection p<0.05 (adjusted OR, AOR 2.42, 95% CI 1.31 to 4.47). NG infection was significantly associated with factors such as: sexual intercourse while having a sexually transmitted infection p<0.05 (AOR 3.19, 95% CI 1.48 to 6.85), having more than 11 sexual partners in the last 6 months p=0.04 (AOR 2.91, 95% CI 1.04 to 8.09) and having daily intercourse p=0.05 (AOR 3.15, 95% CI 1.02 to 9.74). CONCLUSIONS The prevalence of CT and NG was higher than that reported in the general population. Additionally, females had a higher percentage of infection compared with males.
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Affiliation(s)
- Diego Enrique Vélez-Gómez
- Microbiology and Parasitology Department, Bacteria & Cancer group, Universidad de Antioquia - Facultad de Medicina, Medellin, Colombia
| | - Natalia Torres-Vellojín
- Microbiology and Parasitology Department, Bacteria & Cancer group, Universidad de Antioquia - Facultad de Medicina, Medellin, Colombia
| | - Juan Camilo Grajales-Zapata
- Microbiology and Parasitology Department, Bacteria & Cancer group, Universidad de Antioquia - Facultad de Medicina, Medellin, Colombia
| | - Juan Guillermo McEwen-Ochoa
- Microbiology and Parasitology Department, Bacteria & Cancer group, Universidad de Antioquia - Facultad de Medicina, Medellin, Colombia
- Cellular and Molecular Biology Unit, Corporacion para Investigaciones Biologicas, Medellin, Colombia
| | - Alonso Martínez
- Microbiology and Parasitology Department, Bacteria & Cancer group, Universidad de Antioquia - Facultad de Medicina, Medellin, Colombia
| | - Verónica Ramírez-Lopera
- Microbiology and Parasitology Department, Bacteria & Cancer group, Universidad de Antioquia - Facultad de Medicina, Medellin, Colombia
| | - Aracelly Villegas-Castaño
- Microbiology and Parasitology Department, Bacteria & Cancer group, Universidad de Antioquia - Facultad de Medicina, Medellin, Colombia
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Cardona-Arias JA, Carmona-Fonseca J. Congenital malaria: Frequency and epidemiology in Colombia, 2009-2020. PLoS One 2022; 17:e0263451. [PMID: 35180230 PMCID: PMC8856554 DOI: 10.1371/journal.pone.0263451] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 01/18/2022] [Indexed: 11/19/2022] Open
Abstract
Congenital Malaria (CM) is an underestimated and under-researched problem in Colombia, despite its severe clinical, epidemiological, economic, and public health consequences. The objective was to determine the general frequency of CM, the specific frequency of CM by diagnostic test and plasmodial species, and identify its associated factors. A retrospective study was carried out using the records of 567 newborns. qPCR and Thick Blood Smear (TBS) were performed. The frequency of infection was determined with a 95% confidence interval. Associated factors were identified by non-parametric tests and odds ratios; the confusion was controlled with a logistic regression model. All cases corresponded to submicroscopic CM (negative with TBS and positive with PCR), and the frequency was 12.2% (95%CI = 9.4–14.9). The detection was statistically higher in the umbilical cord with 16,2% (95%CI = 12.4–19.9) versus peripheral blood of the newborn with 2.2% (95%CI = 0.7–4.9). CM was statistically higher in newborn whose mothers had malaria in the last year, gestational and placental malaria. The median birth weight in newborn infected with CM was lower compared to the one of healthy neonates. Because the control program in Colombia is based on TBS, it must be improved with the inclusion of other tests that allow the detection of submicroscopic CM. In addition, the program has other limitations such as do not have specific actions for pregnant women and have a passive surveillance system. These difficulties do not allow to show the magnitude of CM, its consequences on neonatal and infant health, constituting a serious problem of health injustice.
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MESH Headings
- Adolescent
- Adult
- Birth Weight
- Colombia/epidemiology
- Cross-Sectional Studies
- Female
- Humans
- Infant, Low Birth Weight
- Infant, Newborn
- Infant, Newborn, Diseases/blood
- Infant, Newborn, Diseases/epidemiology
- Infant, Newborn, Diseases/parasitology
- Malaria, Falciparum/blood
- Malaria, Falciparum/epidemiology
- Malaria, Falciparum/parasitology
- Malaria, Vivax/blood
- Malaria, Vivax/epidemiology
- Malaria, Vivax/parasitology
- Plasmodium falciparum/genetics
- Plasmodium vivax/genetics
- Polymerase Chain Reaction/methods
- Pregnancy
- Pregnancy Complications, Parasitic/blood
- Pregnancy Complications, Parasitic/epidemiology
- Pregnancy Complications, Parasitic/parasitology
- Retrospective Studies
- Umbilical Cord/parasitology
- Young Adult
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Affiliation(s)
- Jaiberth Antonio Cardona-Arias
- School of Microbiology, University of Antioquia, Medellín, Colombia
- “Grupo de Investigación César Uribe Piedrahíta”, Faculty of Medicine, University of Antioquia, Medellín, Colombia
- * E-mail:
| | - Jaime Carmona-Fonseca
- “Grupo de Investigación César Uribe Piedrahíta”, Faculty of Medicine, University of Antioquia, Medellín, Colombia
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29
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Sánchez-Velandia J, Becerra JA, Mejía SM, Villa AL, Martínez O F. Thermodynamics of the Isomerization of Monoterpene Epoxides. ACS Omega 2021; 6:34206-34218. [PMID: 34963907 PMCID: PMC8697005 DOI: 10.1021/acsomega.1c03049] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/26/2021] [Indexed: 05/15/2023]
Abstract
In this contribution, the thermodynamic analysis of α- and β-pinene epoxide isomerization over Fe and Cu supported on MCM-41 is presented using computational chemistry and group contribution methods (GCMs). Some physical-chemical data (T c, P c, v c, Z c, ω, T b, T fus) and thermodynamic (S°298.15, C p,298.15 °, C v,298.15 °, ΔH f,298.15 °, ΔG f,298.15 °, ΔH vb °, ΔH fus, C pL) properties obtained by different GCMs are reported for several monoterpenes and monoterpenoids, which significantly contribute to the knowledge of the properties of these compounds. Density functional theory (DFT), PBE-D3/6-311G(d,p), was employed for determining the Gibbs free energy and the heat of reaction associated with the transformation of monoterpene epoxides into aldehydes, ketones, and related oxygenated compounds in the presence of different solvents and at several temperatures. The calculations were compared with available data reported and the experimental results of the catalytic reactions. The transformation of α- and β-pinene epoxides into aldehydes appears to be more spontaneous and favorable than their transformations into alcohols in a wide range of temperatures. These results are in agreement with the experiments over Fe/MCM-41 and Cu/MCM-41, where α-pinene epoxide isomerization yields campholenic aldehyde (50-80% selectivity) as the main product. The 1.7Fe/MCM-41 material was more active in all solvents than 1.3Cu/MCM-41 for both α- and β-pinene epoxide isomerization. However, perillyl alcohol (20-70% selectivity) was the most favored for the isomerization reaction, except when ethyl acetate was the solvent. Enthalpy and Gibbs free energy of the studied reactions estimated by both GCMs and DFT calculations did not show large differences for most of the reactions at evaluated temperatures.
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Affiliation(s)
- Julián
E. Sánchez-Velandia
- Engineering
Faculty, Chemical Engineering Department, Environmental Catalysis
Research Group, Universidad de Antioquia
UdeA, Calle 70 No. 52−21, 1226 Medellín, Colombia
- Facultad
de Ciencias, Departamento de Química, Grupo de Investigación
Fitoquímica Universidad Javeriana (GIFUJ)—Línea
de investigación en Química Computacional, Pontificia Universidad Javeriana, 11001000 Bogotá, Colombia
- Centro
de Investigación en Catálisis, Escuela de Química, Universidad Industrial de Santander, 680002 Bucaramanga, Colombia
| | - Jaime-Andrés Becerra
- Engineering
Faculty, Chemical Engineering Department, Environmental Catalysis
Research Group, Universidad de Antioquia
UdeA, Calle 70 No. 52−21, 1226 Medellín, Colombia
| | - Sol M. Mejía
- Facultad
de Ciencias, Departamento de Química, Grupo de Investigación
Fitoquímica Universidad Javeriana (GIFUJ)—Línea
de investigación en Química Computacional, Pontificia Universidad Javeriana, 11001000 Bogotá, Colombia
| | - Aída L. Villa
- Engineering
Faculty, Chemical Engineering Department, Environmental Catalysis
Research Group, Universidad de Antioquia
UdeA, Calle 70 No. 52−21, 1226 Medellín, Colombia
| | - Fernando Martínez O
- Centro
de Investigación en Catálisis, Escuela de Química, Universidad Industrial de Santander, 680002 Bucaramanga, Colombia
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Lopera TJ, Lujan JA, Zurek E, Zapata W, Hernandez JC, Toro MA, Alzate JF, Taborda NA, Rugeles MT, Aguilar-Jimenez W. A specific structure and high richness characterize intestinal microbiota of HIV-exposed seronegative individuals. PLoS One 2021; 16:e0260729. [PMID: 34855852 PMCID: PMC8638974 DOI: 10.1371/journal.pone.0260729] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/15/2021] [Indexed: 02/05/2023] Open
Abstract
Intestinal microbiota facilitates food breakdown for energy metabolism and influences the immune response, maintaining mucosal homeostasis. Overall, HIV infection is associated with intestinal dysbiosis and immune activation, which has been related to seroconversion in HIV-exposed individuals. However, it is unclear whether microbiota dysbiosis is the cause or the effect of immune alterations and disease progression or if it could modulate the risk of acquiring the HIV infection. We characterize the intestinal microbiota and determine its association with immune regulation in HIV-exposed seronegative individuals (HESN), HIV-infected progressors (HIV+), and healthy control (HC) subjects. For this, feces and blood were collected. The microbiota composition of HESN showed a significantly higher alpha (p = 0.040) and beta diversity (p = 0.006) compared to HC, but no differences were found compared to HIV+. A lower Treg percentage was observed in HESN (1.77%) than HC (2.98%) and HIV+ (4.02%), with enrichment of the genus Butyrivibrio (p = 0.029) being characteristic of this profile. Moreover, we found that Megasphaera (p = 0.017) and Victivallis (p = 0.0029) also are enriched in the microbiota composition in HESN compared to HC and HIV+ subjects. Interestingly, an increase in Succinivibrio and Prevotella, and a reduction in Bacteroides genus, which is typical of HIV-infected individuals, were observed in both HESN and HIV+, compared to HC. Thus, HESNs have a microbiota profile, similar to that observed in HIV+, most likely because HESN are cohabiting with their HIV+ partners.
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Affiliation(s)
- Tulio J. Lopera
- Facultad de Medicina, Grupo Inmunovirología, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Jorge A. Lujan
- Facultad de Medicina, Grupo Inmunovirología, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Eduardo Zurek
- Department of System Engineering, Universidad del Norte, Barranquilla, Colombia
| | - Wildeman Zapata
- Facultad de Medicina, Grupo Inmunovirología, Universidad de Antioquia UdeA, Medellín, Colombia
- Facultad de Medicina, Grupo Infettare, Universidad Cooperativa de Colombia, Medellín, Colombia
| | - Juan C. Hernandez
- Facultad de Medicina, Grupo Infettare, Universidad Cooperativa de Colombia, Medellín, Colombia
| | - Miguel A. Toro
- Facultad de Medicina, Centro Nacional de Secuenciación Genómica -CNSG, Sede de Investigación Universitaria -SIU, Universidad de Antioquia UdeA, Medellin, Colombia
- Facultad de Medicina, Grupo de Parasitología, Universidad de Antioquia, Medellín, Colombia
| | - Juan F. Alzate
- Facultad de Medicina, Centro Nacional de Secuenciación Genómica -CNSG, Sede de Investigación Universitaria -SIU, Universidad de Antioquia UdeA, Medellin, Colombia
| | - Natalia A. Taborda
- Facultad de Medicina, Grupo Inmunovirología, Universidad de Antioquia UdeA, Medellín, Colombia
- Facultad de Ciencias de la Salud, Grupo de Investigaciones Biomédicas Uniremington, Programa de Medicina, Corporación Universitaria Remington, Medellín, Colombia
| | - Maria T. Rugeles
- Facultad de Medicina, Grupo Inmunovirología, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Wbeimar Aguilar-Jimenez
- Facultad de Medicina, Grupo Inmunovirología, Universidad de Antioquia UdeA, Medellín, Colombia
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Marín-Palma D, Tabares-Guevara JH, Zapata-Cardona MI, Flórez-Álvarez L, Yepes LM, Rugeles MT, Zapata-Builes W, Hernandez JC, Taborda NA. Curcumin Inhibits In Vitro SARS-CoV-2 Infection In Vero E6 Cells through Multiple Antiviral Mechanisms. Molecules 2021; 26:6900. [PMID: 34833991 PMCID: PMC8618354 DOI: 10.3390/molecules26226900] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/05/2021] [Accepted: 11/11/2021] [Indexed: 01/14/2023] Open
Abstract
Due to the scarcity of therapeutic approaches for COVID-19, we investigated the antiviral and anti-inflammatory properties of curcumin against SARS-CoV-2 using in vitro models. The cytotoxicity of curcumin was evaluated using MTT assay in Vero E6 cells. The antiviral activity of this compound against SARS-CoV-2 was evaluated using four treatment strategies (i. pre-post infection treatment, ii. co-treatment, iii. pre-infection, and iv. post-infection). The D614G strain and Delta variant of SARS-CoV-2 were used, and the viral titer was quantified by plaque assay. The anti-inflammatory effect was evaluated in peripheral blood mononuclear cells (PBMCs) using qPCR and ELISA. By pre-post infection treatment, Curcumin (10 µg/mL) exhibited antiviral effect of 99% and 99.8% against DG614 strain and Delta variant, respectively. Curcumin also inhibited D614G strain by pre-infection and post-infection treatment. In addition, curcumin showed a virucidal effect against D614G strain and Delta variant. Finally, the pro-inflammatory cytokines (IL-1β, IL-6, and IL-8) released by PBMCs triggered by SARS-CoV-2 were decreased after treatment with curcumin. Our results suggest that curcumin affects the SARS-CoV-2 replicative cycle and exhibits virucidal effect with a variant/strain independent antiviral effect and immune-modulatory properties. This is the first study that showed a combined (antiviral/anti-inflammatory) effect of curcumin during SARS-CoV-2 infection. However, additional studies are required to define its use as a treatment for the COVID-19.
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Affiliation(s)
- Damariz Marín-Palma
- Grupo Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, 050012 Medellín, Colombia; (D.M.-P.); (J.H.T.-G.); (W.Z.-B.); (J.C.H.)
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia, UdeA, 050010 Medellín, Colombia; (M.I.Z.-C.); (L.F.-Á.); (L.M.Y.); (M.T.R.)
| | - Jorge H. Tabares-Guevara
- Grupo Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, 050012 Medellín, Colombia; (D.M.-P.); (J.H.T.-G.); (W.Z.-B.); (J.C.H.)
| | - María I. Zapata-Cardona
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia, UdeA, 050010 Medellín, Colombia; (M.I.Z.-C.); (L.F.-Á.); (L.M.Y.); (M.T.R.)
| | - Lizdany Flórez-Álvarez
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia, UdeA, 050010 Medellín, Colombia; (M.I.Z.-C.); (L.F.-Á.); (L.M.Y.); (M.T.R.)
| | - Lina M. Yepes
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia, UdeA, 050010 Medellín, Colombia; (M.I.Z.-C.); (L.F.-Á.); (L.M.Y.); (M.T.R.)
| | - Maria T. Rugeles
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia, UdeA, 050010 Medellín, Colombia; (M.I.Z.-C.); (L.F.-Á.); (L.M.Y.); (M.T.R.)
| | - Wildeman Zapata-Builes
- Grupo Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, 050012 Medellín, Colombia; (D.M.-P.); (J.H.T.-G.); (W.Z.-B.); (J.C.H.)
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia, UdeA, 050010 Medellín, Colombia; (M.I.Z.-C.); (L.F.-Á.); (L.M.Y.); (M.T.R.)
| | - Juan C. Hernandez
- Grupo Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, 050012 Medellín, Colombia; (D.M.-P.); (J.H.T.-G.); (W.Z.-B.); (J.C.H.)
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia, UdeA, 050010 Medellín, Colombia; (M.I.Z.-C.); (L.F.-Á.); (L.M.Y.); (M.T.R.)
| | - Natalia A. Taborda
- Grupo Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, 050012 Medellín, Colombia; (D.M.-P.); (J.H.T.-G.); (W.Z.-B.); (J.C.H.)
- Grupo de Investigaciones Biomédicas Uniremington, Programa de Medicina, Facultad de Ciencias de la Salud, Corporación Universitaria Remington, 050016 Medellín, Colombia
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Gallego AM, Rojas LF, Valencia WG, Atehortúa L, Urrea AI, Fister AS, Guiltinan MJ, Maximova SN, Pabón-Mora N. Transcriptomic analyses of cacao flavonoids produced in photobioreactors. BMC Genomics 2021; 22:551. [PMID: 34281511 PMCID: PMC8287782 DOI: 10.1186/s12864-021-07871-0] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 07/05/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Theobroma cacao is a major source of flavonoids such as catechins and their monomers proanthocyanidins (PAs), widely studied for their potential benefits in cardiovascular diseases. Light has been shown to promote plant secondary metabolite production in vitro. In this study, cacao cells cultured in 7.5 L stirred tank photobioreactors (STPs) were exposed to a change of white to blue LED lights for 28 days (d). RESULTS Transcriptomic analyses were performed in three time points comparing changing expression patterns, after cell exposure to white light (d0-VS-d14), after a shift from white to blue light (d14-VS-d15), and after an extended period of blue light for the following 15 days (d15-VS-d28). Under white light, there was enrichment in metabolic pathways associated with cell growth (carbon, glycolysis, and amino acid biosynthesis) accompanied by a significant increase in the PAs content. In the shift to blue light, further increase in PAs content was observed concomitantly with the significant expression of TWO-COMPONENT RESPONSE REGULATOR genes involved in the early stress responses via circadian clock and hormone pathways. Under blue light exposure, we observed a depletion of PAs content associated with ROS-mediated stress pathways. CONCLUSIONS Light effects on large-scale cell cultures in photobioreactors are complex and pleiotropic; however, we have been able to identify key regulatory players upstream cacao flavonoid biosynthesis in STPs, including TWO-COMPONENT SYSTEM and ROS-signaling genes. The crosstalk between flavonoid biosynthesis and regulatory networks led to understand the dynamics of flavonoid production and degradation in response to light-driven ROS signals. This can be used to optimize the time, and the yield of in vitro targeted metabolites in large-scale culture systems.
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Affiliation(s)
- Adriana M Gallego
- Grupo de Biotecnología, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia
| | - Luisa F Rojas
- Grupo de Biotransformación, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Wilmar G Valencia
- Centro de Investigación, Desarrollo y Calidad CIDCA, Compañía Nacional de Chocolates S.A.S, Km 2 Vía Belén autopista, Medellín-Bogotá, Colombia
| | - Lucía Atehortúa
- Grupo de Biotecnología, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia
| | - Aura I Urrea
- Grupo de Biotecnología, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia
| | - Andrew S Fister
- Department of Plant Science, Pennsylvania State University, University Park, PA, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
- Present address: Pairwise Plants, 110 TW Alexander Dr, Durham, NC, USA
| | - Mark J Guiltinan
- Department of Plant Science, Pennsylvania State University, University Park, PA, USA
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Siela N Maximova
- Department of Plant Science, Pennsylvania State University, University Park, PA, USA.
- Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA.
| | - Natalia Pabón-Mora
- Grupo Evo-Devo en Plantas, Instituto de Biología, Universidad de Antioquia, Medellín, Colombia.
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Suárez-Baron H, Alzate JF, González F, Pelaz S, Ambrose BA, Pabón-Mora N. Gene expression underlying floral epidermal specialization in Aristolochia fimbriata (Aristolochiaceae). Ann Bot 2021; 127:749-764. [PMID: 33630993 PMCID: PMC8103811 DOI: 10.1093/aob/mcab033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND AND AIMS The epidermis constitutes the outermost tissue of the plant body. Although it plays major structural, physiological and ecological roles in embryophytes, the molecular mechanisms controlling epidermal cell fate, differentiation and trichome development have been scarcely studied across angiosperms, and remain almost unexplored in floral organs. METHODS In this study, we assess the spatio-temporal expression patterns of GL2, GL3, TTG1, TRY, MYB5, MYB6, HDG2, MYB106-like, WIN1 and RAV1-like homologues in the magnoliid Aristolochia fimbriata (Aristolochiaceae) by using comparative RNA-sequencing and in situ hybridization assays. KEY RESULTS Genes involved in Aristolochia fimbriata trichome development vary depending on the organ where they are formed. Stem, leaf and pedicel trichomes recruit most of the transcription factors (TFs) described above. Conversely, floral trichomes only use a small subset of genes including AfimGL2, AfimRAV1-like, AfimWIN1, AfimMYB106-like and AfimHDG2. The remaining TFs, AfimTTG1, AfimGL3, AfimTRY, AfimMYB5 and AfimMYB6, are restricted to the abaxial (outer) and the adaxial (inner) pavement epidermal cells. CONCLUSIONS We re-evaluate the core genetic network shaping trichome fate in flowers of an early-divergent angiosperm lineage and show a morphologically diverse output with a simpler genetic mechanism in place when compared to the models Arabidopsis thaliana and Cucumis sativus. In turn, our results strongly suggest that the canonical trichome gene expression appears to be more conserved in vegetative than in floral tissues across angiosperms.
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Affiliation(s)
| | - Juan F Alzate
- Centro Nacional de Secuenciación Genómica (CNSG), Sede de Investigación Universitaria, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
| | - Favio González
- Universidad Nacional de Colombia, Facultad de Ciencias, Instituto de Ciencias Naturales, Bogotá, Colombia
| | - Soraya Pelaz
- Centre for Research in Agricultural Genomics, CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, Barcelona, Spain
- ICREA (Institució Catalana de Recerca i Estudis Avançats), Barcelona, Spain
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Giraldo ND, Correa SM, Arbeláez A, Figueroa FL, Ríos-Estepa R, Atehortúa L. Reducing self-shading effects in Botryococcus braunii cultures: effect of Mg 2+ deficiency on optical and biochemical properties, photosynthesis and lipidomic profile. BIORESOUR BIOPROCESS 2021; 8:33. [PMID: 38650232 PMCID: PMC10992481 DOI: 10.1186/s40643-021-00389-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/23/2021] [Indexed: 11/10/2022] Open
Abstract
Microalgae biomass exploitation as a carbon-neutral energy source is currently limited by several factors, productivity being one of the most relevant. Due to the high absorption properties of light-harvesting antenna, photosynthetic cells tend to capture an excessive amount of energy that cannot be entirely channeled through the electron transfer chain that ends up dissipated as heat and fluorescence, reducing the overall light use efficiency. Aiming to minimize this hurdle, in this work we studied the effect of decreasing concentrations of Magnesium (Mg2+) on the chlorophyll a content, photosynthetic performance, biomass and lipid production of autotrophic cultures of Botryococcus braunii LB 572. We also performed, for the first time, a comparative lipidomic analysis to identify the influence of limited Mg2+ supply on the lipid profile of this algae. The results indicated that a level of 0.0037 g L-1 MgSO4 caused a significant decline on chlorophyll a content with a concomitant 2.3-fold reduction in the biomass absorption coefficient. In addition, the Mg2+ limitation caused a decrease in the total carbohydrate content and triggered lipid accumulation, achieving levels of up to 53% DCW, whereas the biomass productivity remained similar for all tested conditions. The lipidome analysis revealed that the lowest Mg2+ concentrations also caused a differential lipid profile distribution, with an enrichment of neutral lipids and an increase of structural lipids. In that sense, we showed that Mg2+ limitation represents an alternative optimization approach that not only enhances accumulation of neutral lipids in B. braunii cells but also may potentially lead to a better areal biomass productivity due to the reduction in the cellular light absorption properties of the cells.
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Affiliation(s)
- Néstor David Giraldo
- Grupo de Biotecnología, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia.
| | - Sandra Marcela Correa
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam, Germany
| | - Andrés Arbeláez
- Grupo de Biotecnología, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia
| | - Felix L Figueroa
- Institute of Biotechnology and Blue Development (IBYDA), University of Malaga, Campus Universitario de Teatinos s/n, 29071, Málaga, Spain
| | - Rigoberto Ríos-Estepa
- Grupo de Bioprocesos, Departamento de Ingeniería Química, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia
| | - Lucía Atehortúa
- Grupo de Biotecnología, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia
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Valencia-Rodríguez D, Jiménez-Segura L, Rogéliz CA, Parra JL. Ecological niche modeling as an effective tool to predict the distribution of freshwater organisms: The case of the Sabaleta Brycon henni (Eigenmann, 1913). PLoS One 2021; 16:e0247876. [PMID: 33657168 PMCID: PMC7928524 DOI: 10.1371/journal.pone.0247876] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 02/16/2021] [Indexed: 11/18/2022] Open
Abstract
Ecological niche models (ENMs) aim to recreate the relationships between species and the environments where they occur and allow us to identify unexplored areas in geography where these species might be present. These models have been successfully used in terrestrial organisms but their application in aquatic organisms is still scarce. Recent advances in the availability of species occurrences and environmental information particular to aquatic systems allow the evaluation of these models. This study aims to characterize the niche of the Sabaleta Brycon henni Eigenmann 1913, an endemic fish of the Colombian Andes, using ENMs to predict its geographical distribution across the Magdalena Basin. For this purpose, we used a set of environmental variables specific to freshwater systems in addition to the customary bioclimatic variables, and species' occurrence data to model its potential distribution using the Maximum Entropy algorithm (MaxEnt). We evaluate the relative importance between these two sets of variables, the model's performance, and its geographic overlap with the IUCN map. Both on-site (annual precipitation, minimum temperature of coldest month) and upstream variables (open waters, average minimum temperature of the coldest month and average precipitation seasonality) were included in the models with the highest predictive accuracy. With an area under the curve of 90%, 99% of the species occurrences and 68% of absences correctly predicted, our results support the good performance of ENMs to predict the potential distribution of the Sabaleta and the utility of this tool in conservation and decision-making at the national level.
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Affiliation(s)
- Daniel Valencia-Rodríguez
- Departamento de Biología, Grupo de ictiología de la Universidad de Antioquia, Universidad de Antioquia, Medellín, Antioquia, Colombia
| | - Luz Jiménez-Segura
- Departamento de Biología, Grupo de ictiología de la Universidad de Antioquia, Universidad de Antioquia, Medellín, Antioquia, Colombia
| | | | - Juan L. Parra
- Departamento de Biología, Grupo de ecología y evolución de vertebrados, Universidad de Antioquia, Medellín, Antioquia, Colombia
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Gómez-Archila LG, Palomino-Schätzlein M, Zapata-Builes W, Galeano E. Development of an optimized method for processing peripheral blood mononuclear cells for 1H-nuclear magnetic resonance-based metabolomic profiling. PLoS One 2021; 16:e0247668. [PMID: 33630921 PMCID: PMC7906414 DOI: 10.1371/journal.pone.0247668] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 02/11/2021] [Indexed: 01/04/2023] Open
Abstract
Human peripheral blood mononuclear cells (PBMCs) are part of the innate and adaptive immune system, and form a critical interface between both systems. Studying the metabolic profile of PBMC could provide valuable information about the response to pathogens, toxins or cancer, the detection of drug toxicity, in drug discovery and cell replacement therapy. The primary purpose of this study was to develop an improved processing method for PBMCs metabolomic profiling with nuclear magnetic resonance (NMR) spectroscopy. To this end, an experimental design was applied to develop an alternative method to process PBMCs at low concentrations. The design included the isolation of PBMCs from the whole blood of four different volunteers, of whom 27 cell samples were processed by two different techniques for quenching and extraction of metabolites: a traditional one using organic solvents and an alternative one employing a high-intensity ultrasound probe, the latter with a variation that includes the use of deproteinizing filters. Finally, all the samples were characterized by 1H-NMR and the metabolomic profiles were compared by the method. As a result, two new methods for PBMCs processing, called Ultrasound Method (UM) and Ultrasound and Ultrafiltration Method (UUM), are described and compared to the Folch Method (FM), which is the standard protocol for extracting metabolites from cell samples. We found that UM and UUM were superior to FM in terms of sensitivity, processing time, spectrum quality, amount of identifiable, quantifiable metabolites and reproducibility.
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Affiliation(s)
- León Gabriel Gómez-Archila
- Grupo de Investigación en Sustancias Bioactivas, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia (UdeA), Medellín, Colombia
| | | | - Wildeman Zapata-Builes
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia (UdeA), Medellín, Colombia
- Grupo Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medelín, Colombia
| | - Elkin Galeano
- Grupo de Investigación en Sustancias Bioactivas, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia (UdeA), Medellín, Colombia
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Bonfante B, Faux P, Navarro N, Mendoza-Revilla J, Dubied M, Montillot C, Wentworth E, Poloni L, Varón-González C, Jones P, Xiong Z, Fuentes-Guajardo M, Palmal S, Chacón-Duque JC, Hurtado M, Villegas V, Granja V, Jaramillo C, Arias W, Barquera R, Everardo-Martínez P, Sánchez-Quinto M, Gómez-Valdés J, Villamil-Ramírez H, Silva de Cerqueira CC, Hünemeier T, Ramallo V, Liu F, Weinberg SM, Shaffer JR, Stergiakouli E, Howe LJ, Hysi PG, Spector TD, Gonzalez-José R, Schüler-Faccini L, Bortolini MC, Acuña-Alonzo V, Canizales-Quinteros S, Gallo C, Poletti G, Bedoya G, Rothhammer F, Thauvin-Robinet C, Faivre L, Costedoat C, Balding D, Cox T, Kayser M, Duplomb L, Yalcin B, Cotney J, Adhikari K, Ruiz-Linares A. A GWAS in Latin Americans identifies novel face shape loci, implicating VPS13B and a Denisovan introgressed region in facial variation. Sci Adv 2021; 7:eabc6160. [PMID: 33547071 PMCID: PMC7864580 DOI: 10.1126/sciadv.abc6160] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 12/17/2020] [Indexed: 05/25/2023]
Abstract
To characterize the genetic basis of facial features in Latin Americans, we performed a genome-wide association study (GWAS) of more than 6000 individuals using 59 landmark-based measurements from two-dimensional profile photographs and ~9,000,000 genotyped or imputed single-nucleotide polymorphisms. We detected significant association of 32 traits with at least 1 (and up to 6) of 32 different genomic regions, more than doubling the number of robustly associated face morphology loci reported until now (from 11 to 23). These GWAS hits are strongly enriched in regulatory sequences active specifically during craniofacial development. The associated region in 1p12 includes a tract of archaic adaptive introgression, with a Denisovan haplotype common in Native Americans affecting particularly lip thickness. Among the nine previously unidentified face morphology loci we identified is the VPS13B gene region, and we show that variants in this region also affect midfacial morphology in mice.
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Affiliation(s)
- Betty Bonfante
- Aix-Marseille Université, CNRS, EFS, ADES, Marseille 13005, France
| | - Pierre Faux
- Aix-Marseille Université, CNRS, EFS, ADES, Marseille 13005, France
| | - Nicolas Navarro
- Biogéosciences, UMR 6282 CNRS, EPHE, Université Bourgogne Franche-Comté, Dijon 21078, France
- EPHE, PSL University, Paris 75014, France
| | - Javier Mendoza-Revilla
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Perú
- Unit of Human Evolutionary Genetics, Institut Pasteur, Paris 75015, France
| | - Morgane Dubied
- Biogéosciences, UMR 6282 CNRS, EPHE, Université Bourgogne Franche-Comté, Dijon 21078, France
| | - Charlotte Montillot
- INSERM UMR 1231 Génétique des Anomalies du Développement, Université Bourgogne Franche-Comté, Dijon 21000, France
| | - Emma Wentworth
- Department of Genetics and Genome Sciences, University of Connecticut Health, Farmington, CT 06030, USA
| | - Lauriane Poloni
- Biogéosciences, UMR 6282 CNRS, EPHE, Université Bourgogne Franche-Comté, Dijon 21078, France
- EPHE, PSL University, Paris 75014, France
| | - Ceferino Varón-González
- Institut de Systématique, Évolution, Biodiversité, ISYEB-UMR 7205-CNRS, MNHN, UPMC, EPHE, UA, Muséum National d'Histoire Naturelle, Sorbonne Universités, Paris 75005, France
| | - Philip Jones
- Department of Genetics, Evolution and Environment, and UCL Genetics Institute, University College London, London WC1E 6BT, UK
| | - Ziyi Xiong
- Department of Genetic Identification, Erasmus MC University Medical Center Rotterdam, Rotterdam 3015GD, Netherlands
| | - Macarena Fuentes-Guajardo
- Departamento de Tecnología Médica, Facultad de Ciencias de la Salud, Universidad de Tarapacá, Arica 1000000, Chile
| | - Sagnik Palmal
- Aix-Marseille Université, CNRS, EFS, ADES, Marseille 13005, France
| | - Juan Camilo Chacón-Duque
- Division of Vertebrates and Anthropology, Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK
| | - Malena Hurtado
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Perú
| | - Valeria Villegas
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Perú
| | - Vanessa Granja
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Perú
| | - Claudia Jaramillo
- GENMOL (Genética Molecular), Universidad de Antioquia, Medellín 5001000, Colombia
| | - William Arias
- GENMOL (Genética Molecular), Universidad de Antioquia, Medellín 5001000, Colombia
| | - Rodrigo Barquera
- Molecular Genetics Laboratory, National School of Anthropology and History, Mexico City 14050, Mexico
- Department of Archaeogenetics, Max Planck Institute for the Science of Human History (MPI-SHH), Jena 07745, Germany
| | - Paola Everardo-Martínez
- Molecular Genetics Laboratory, National School of Anthropology and History, Mexico City 14050, Mexico
| | - Mirsha Sánchez-Quinto
- Forensic Science, Faculty of Medicine, UNAM (Universidad Nacional Autónoma de México), Mexico City 06320, Mexico
| | - Jorge Gómez-Valdés
- Molecular Genetics Laboratory, National School of Anthropology and History, Mexico City 14050, Mexico
| | - Hugo Villamil-Ramírez
- Unidad de Genomica de Poblaciones Aplicada a la Salud, Facultad de Química, UNAM-Instituto Nacional de Medicina Genómica, Mexico City 4510, Mexico
| | | | - Tábita Hünemeier
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP 05508-090, Brazil
| | - Virginia Ramallo
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre 90040-060, Brasil
- Instituto Patagónico de Ciencias Sociales y Humanas, Centro Nacional Patagónico, CONICET, Puerto Madryn U9129ACD, Argentina
| | - Fan Liu
- Department of Genetic Identification, Erasmus MC University Medical Center Rotterdam, Rotterdam 3015GD, Netherlands
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100864, China
- University of Chinese Academy of Sciences, Beijing 100864, China
| | - Seth M Weinberg
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Department of Anthropology, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - John R Shaffer
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Evie Stergiakouli
- Medical Research Council Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol BS1 2LY, UK
- School of Oral and Dental Sciences, University of Bristol, Bristol BS1 2LY, UK
| | - Laurence J Howe
- Medical Research Council Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol BS1 2LY, UK
| | - Pirro G Hysi
- Department of Twin Research and Genetic Epidemiology, King's College London, London WC2R 2LS, UK
| | - Timothy D Spector
- Department of Twin Research and Genetic Epidemiology, King's College London, London WC2R 2LS, UK
| | - Rolando Gonzalez-José
- Instituto Patagónico de Ciencias Sociales y Humanas, Centro Nacional Patagónico, CONICET, Puerto Madryn U9129ACD, Argentina
| | - Lavinia Schüler-Faccini
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre 90040-060, Brasil
| | - Maria-Cátira Bortolini
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre 90040-060, Brasil
| | - Victor Acuña-Alonzo
- Molecular Genetics Laboratory, National School of Anthropology and History, Mexico City 14050, Mexico
| | - Samuel Canizales-Quinteros
- Unidad de Genomica de Poblaciones Aplicada a la Salud, Facultad de Química, UNAM-Instituto Nacional de Medicina Genómica, Mexico City 4510, Mexico
| | - Carla Gallo
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Perú
| | - Giovanni Poletti
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, 31, Perú
| | - Gabriel Bedoya
- GENMOL (Genética Molecular), Universidad de Antioquia, Medellín 5001000, Colombia
| | - Francisco Rothhammer
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Arica 1000000, Chile
| | - Christel Thauvin-Robinet
- INSERM UMR 1231 Génétique des Anomalies du Développement, Université Bourgogne Franche-Comté, Dijon 21000, France
- Centre de Référence Maladies Rares "Anomalies du Développement et Syndromes Malformatifs" de l'Est, Centre de Génétique, FHU TRANSLAD, CHU Dijon, Dijon 21000, France
| | - Laurence Faivre
- INSERM UMR 1231 Génétique des Anomalies du Développement, Université Bourgogne Franche-Comté, Dijon 21000, France
- Centre de Référence Maladies Rares "Anomalies du Développement et Syndromes Malformatifs" de l'Est, Centre de Génétique, FHU TRANSLAD, CHU Dijon, Dijon 21000, France
| | | | - David Balding
- Department of Genetics, Evolution and Environment, and UCL Genetics Institute, University College London, London WC1E 6BT, UK
- Melbourne Integrative Genomics, Schools of BioSciences and Mathematics & Statistics, University of Melbourne, Melbourne, VIC 3052, Australia
| | - Timothy Cox
- Department of Oral and Craniofacial Sciences, School of Dentistry and Department of Pediatrics, School of Medicine, University of Missouri, Kansas City, MO 64108, USA
| | - Manfred Kayser
- Department of Genetic Identification, Erasmus MC University Medical Center Rotterdam, Rotterdam 3015GD, Netherlands
| | - Laurence Duplomb
- INSERM UMR 1231 Génétique des Anomalies du Développement, Université Bourgogne Franche-Comté, Dijon 21000, France
| | - Binnaz Yalcin
- INSERM UMR 1231 Génétique des Anomalies du Développement, Université Bourgogne Franche-Comté, Dijon 21000, France
| | - Justin Cotney
- Department of Genetics and Genome Sciences, University of Connecticut Health, Farmington, CT 06030, USA
| | - Kaustubh Adhikari
- School of Mathematics and Statistics, Faculty of Science, Technology, Engineering and Mathematics, The Open University, Milton Keynes MK7 6AA, UK.
- Department of Genetics, Evolution and Environment, and UCL Genetics Institute, University College London, London WC1E 6BT, UK
| | - Andrés Ruiz-Linares
- Aix-Marseille Université, CNRS, EFS, ADES, Marseille 13005, France.
- Department of Genetics, Evolution and Environment, and UCL Genetics Institute, University College London, London WC1E 6BT, UK
- Ministry of Education Key Laboratory of Contemporary Anthropology and Collaborative Innovation Center of Genetics and Development, School of Life Sciences and Human Phenome Institute, Fudan University, Yangpu District, Shanghai, China
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Hernández-Valencia JC, Rincón DS, Marín A, Naranjo-Díaz N, Correa MM. Effect of land cover and landscape fragmentation on anopheline mosquito abundance and diversity in an important Colombian malaria endemic region. PLoS One 2020; 15:e0240207. [PMID: 33057442 PMCID: PMC7561141 DOI: 10.1371/journal.pone.0240207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 09/23/2020] [Indexed: 11/25/2022] Open
Abstract
Landscape structure influences the distribution and abundance of anopheline mosquitoes and has an indirect impact on malaria transmission. This work aimed to determine the effect of land cover and landscape fragmentation on anopheline mosquito abundance and diversity in an important Colombian malaria endemic area, the Bajo Cauca region. Diversity indices were calculated for Anopheles mosquitoes collected in various localities of the region. Land cover types were characterized using orthorectified aerial photographs to estimate landscape metrics. The relationship between landscape fragmentation and species diversity was evaluated by regression analysis. The correlation between species abundance and land cover types was determined using canonical correspondence analyses. Results showed a statistically significant tendency for a lower diversity of the Anopheles community in landscapes with higher patch number, patch density and effective mesh size. For most species, there was evidence of a significant relationship between species abundance and land covers modified by anthropic activities which generate forest loss. These results indicate that activities that modify the landscape structure and land cover composition generate changes that affect the spatial distribution and composition of epidemiologically-important Anopheles species, which may impact malaria distribution in a region. This information is useful to guide control interventions that promote unfavorable landscapes for malaria vector propagation.
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Affiliation(s)
- Juan C. Hernández-Valencia
- Grupo de Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Daniel S. Rincón
- Grupo de Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Alba Marín
- Universidad de Antioquia, Medellín, Colombia
| | - Nelson Naranjo-Díaz
- Grupo de Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Margarita M. Correa
- Grupo de Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
- * E-mail: ,
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González Quiroz DJ, Agudelo Lopez SDP, Arango CM, Acosta JEO, Bello Parias LD, Alzate LU, Hernández Castro C, Medina Lozano AP, Sepúlveda Vergara GD, Giraldo AM, Trujillo-Trujillo J, Pernett Bolaño IDC, Cuellar Segura CM, Arbeláez Montoya MP. Prevalence of soil transmitted helminths in school-aged children, Colombia, 2012-2013. PLoS Negl Trop Dis 2020; 14:e0007613. [PMID: 32678821 PMCID: PMC7390406 DOI: 10.1371/journal.pntd.0007613] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 07/29/2020] [Accepted: 07/08/2019] [Indexed: 11/20/2022] Open
Abstract
Background This study aims to establish the prevalence of soil-transmitted helminth (STH) intestinal infections, nutritional status, and anemia in school children aged 7 to 10 years old in the biogeographic provinces of Colombia in 2012–2013. STH prevalence in the country has not been described within the last 30 years and it is needed in order to establish policies its control in the country. Methodology National Survey of STH in school-aged children with a multistage stratified probability sampling was conducted. The overall prevalence and intensity of STH infection, as well as for each parasite, (A. lumbricoides, T. trichiura and hookworms) were calculated for the country and for each of the nine biogeographic provinces. Principal findings Stool samples were collected from 6045 children in eight out of nine biogeographic provinces. The combined prevalence of STH in the country was 29.6%. T. trichiura was the most prevalent helminth (18.4%), followed by A. lumbricoides (11.3%), and hookworms (6.4%). For A. lumbricoides and hookworms, the highest prevalence values were found in the Amazonía province (58.0% and 35.7%, respectively). Regarding STH intensity, most cases showed moderate intensity (41.3%) for A. lumbricoides, and light intensity, for T. trichiura and hookworms. The national prevalence of anemia in school-aged children was 14.2%, lowest in the Nor-Andina province (3.5%), and highest in the Territorios Insulares oceánicos del Caribe province (45.1%). Significance Colombia has a moderate risk of STH infection in school-aged populations, with considerable variation in the prevalence values among the biogeographic provinces. Like any public health issue, this problem should be handled with a comprehensive approach that involves deworming programs and strategies for STH control according to the specific epidemiological and socioeconomic conditions and sanitation service coverage in each biogeographic province. The program should be further supported by intersectoral action to improve living conditions, particularly the excreta disposal, promoted at municipality levels. STH infection (infection by A. lumbricoides, T. trichiura, and hookworms) are endemic in Colombia; however, its prevalence in the country has not been described within the last 30 years. This study determines the prevalence and intensity of STH infections, nutritional status, and anemia in children, using multistage stratified probability sampling. The prevalence result of all STH at national level was 29.6%. T. trichiura was the most prevalent (18.4%), followed by A. lumbricoides (11.3%), and hookworms (6.4%). Comparing the biogeographic provinces (eco-epidemiological zones), Amazonía had the highest STH prevalence. A large spatial variation was found in STH prevalence by province. The study shows that STH infection remains a national public health problem, which requires intervention through nationwide strategies using a comprehensive inter-programmatic approach and prioritizing high-risk areas. These strategies should aim at improving the living conditions associated with the infection while being supported by large-scale anthelmintic chemotherapy.
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Affiliation(s)
- David José González Quiroz
- Epidemiology Group, National School of Public Health, University of Antioquia, Medellin, Colombia
- * E-mail:
| | | | - Catalina María Arango
- Epidemiology Group, National School of Public Health, University of Antioquia, Medellin, Colombia
| | | | - León Darío Bello Parias
- Epidemiology Group, National School of Public Health, University of Antioquia, Medellin, Colombia
| | - Leonardo Uribe Alzate
- Epidemiology Group, National School of Public Health, University of Antioquia, Medellin, Colombia
| | | | | | | | - Adriana Molina Giraldo
- Epidemiology Group, National School of Public Health, University of Antioquia, Medellin, Colombia
| | | | - Ivet Del Carmen Pernett Bolaño
- Knowledge Management Group, Epidemiology and Demography Department, Ministry of Health and Social Protection, Bogotá, Colombia
| | - Claudia Milena Cuellar Segura
- Knowledge Management Group, Epidemiology and Demography Department, Ministry of Health and Social Protection, Bogotá, Colombia
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Gupta D, Silva M, Radziun K, Martinez DC, Hill CJ, Marshall J, Hearnden V, Puertas-Mejia MA, Reilly GC. Fucoidan Inhibition of Osteosarcoma Cells Is Species and Molecular Weight Dependent. Mar Drugs 2020; 18:E104. [PMID: 32046368 PMCID: PMC7074035 DOI: 10.3390/md18020104] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 12/11/2022] Open
Abstract
Fucoidan is a brown algae-derived polysaccharide having several biomedical applications. This study simultaneously compares the anti-cancer activities of crude fucoidans from Fucus vesiculosus and Sargassum filipendula, and effects of low (LMW, 10-50 kDa), medium (MMW, 50-100 kDa) and high (HMW, >100 kDa) molecular weight fractions of S. filipendula fucoidan against osteosarcoma cells. Glucose, fucose and acid levels were lower and sulphation was higher in F. vesiculosus crude fucoidan compared to S. filipendula crude fucoidan. MMW had the highest levels of sugars, acids and sulphation among molecular weight fractions. There was a dose-dependent drop in focal adhesion formation and proliferation of cells for all fucoidan-types, but F. vesiculosus fucoidan and HMW had the strongest effects. G1-phase arrest was induced by F. vesiculosus fucoidan, MMW and HMW, however F. vesiculosus fucoidan treatment also caused accumulation in the sub-G1-phase. Mitochondrial damage occurred for all fucoidan-types, however F. vesiculosus fucoidan led to mitochondrial fragmentation. Annexin V/PI, TUNEL and cytochrome c staining confirmed stress-induced apoptosis-like cell death for F. vesiculosus fucoidan and features of stress-induced necrosis-like cell death for S. filipendula fucoidans. There was also variation in penetrability of different fucoidans inside the cell. These differences in anti-cancer activity of fucoidans are applicable for osteosarcoma treatment.
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Affiliation(s)
- Dhanak Gupta
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK; (D.G.); (K.R.); (D.C.M.); (V.H.)
- INSIGNEO Institute for in Silico Medicine, University of Sheffield, Sheffield S1 3JD, UK;
| | - Melissa Silva
- Institute of Chemistry, University of Antioquia, Medellín A.A.1226, Colombia; (M.S.); (M.A.P.-M.)
| | - Karolina Radziun
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK; (D.G.); (K.R.); (D.C.M.); (V.H.)
- INSIGNEO Institute for in Silico Medicine, University of Sheffield, Sheffield S1 3JD, UK;
- Cell Bank, Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland
| | - Diana C. Martinez
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK; (D.G.); (K.R.); (D.C.M.); (V.H.)
| | - Christopher J. Hill
- Department of Molecular Biology and Biotechnology (MBB), University of Sheffield, Sheffield S10 2TN, UK;
| | - Julie Marshall
- INSIGNEO Institute for in Silico Medicine, University of Sheffield, Sheffield S1 3JD, UK;
| | - Vanessa Hearnden
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK; (D.G.); (K.R.); (D.C.M.); (V.H.)
| | - Miguel A. Puertas-Mejia
- Institute of Chemistry, University of Antioquia, Medellín A.A.1226, Colombia; (M.S.); (M.A.P.-M.)
| | - Gwendolen C. Reilly
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK; (D.G.); (K.R.); (D.C.M.); (V.H.)
- INSIGNEO Institute for in Silico Medicine, University of Sheffield, Sheffield S1 3JD, UK;
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Granados J, Salazar-Ospina A, Botero-Aguirre JP, Valencia-Quintero AF, Ortiz N, Amariles P. Effect and associated factors of a clinical pharmacy model in the incidence of medication errors (EACPharModel) in the Hospital Pablo Tobón Uribe: study protocol for a stepped wedge randomized controlled trial (NCT03338725). Trials 2020; 21:26. [PMID: 31907009 PMCID: PMC6945697 DOI: 10.1186/s13063-019-3945-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 12/02/2019] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND According to WHO, medication error (ME) is a subject that requires attention at all levels of care to reduce severe and preventable damage related to medication use. Clinical pharmacy practice standards have been proposed around the world so that the pharmacist, as part of a multidisciplinary health team, can help improve patient safety; however, further evidence derived from adequate studies is needed to demonstrate this. This study aims to assess the effect of a clinical pharmacy practice model (CPPM) in preventing MEs associated with the medication use process. METHODS A prospective, stepped-wedge, cluster-randomized, controlled trial with a duration of 14 months will be performed to compare the effect of a CPPM along with the usual care process of patients in the Pablo Tobón Uribe Hospital (Medellin, Colombia). The study is designed as a cluster-randomized controlled trial, involving five hospital wards (clusters) and 720 patients. Medical wards are allocated to interventions using a stepped-wedge design. Clusters are initially assigned to the control group. After a 2-month observation period, hospital clusters were randomly allocated to the intervention group. Study outcomes will be assessed at baseline and at 2, 4, 6, 8, 10, and 12 months after randomization. The primary outcome will be to assess the effect of a CPPM on the incidence of medication errors associated with the medication use process. Drug-related problems and factors that contribute to the occurrence of MEs will be assessed as secondary outcomes. Statistical analyses will be performed using a mixed model, with the treatment group and time as fixed effects and the clustering structure as a random effect. Statistical analysis will be performed using Pearson chi-square tests and Student's t-tests, and a P value < 0.05 will be considered statistically significant. DISCUSSION As far as we know, this is the first stepped-wedge, cluster-randomized, controlled trial designed to assess the change of a CPPM on the incidence of medication errors in a hospital in Colombia, and it could generate valuable information about a standardized and patient-centered clinical pharmacy model to improve the safety of inpatient care. TRIAL REGISTRATION ClinicalTrials.gov, NCT03338725. Registered on 9 November 2017. The first patient was randomized on 2 February 2018. PROTOCOL VERSION 0010112018JG.
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Affiliation(s)
- J. Granados
- Grupo Promoción y Prevención Farmacéutica, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
- Grupo de investigación en Tecnología en Regencia de Farmacia, Universidad de Antioquia U de A, Calle 70 No 52-21, Medellín, Colombia
| | - A. Salazar-Ospina
- Grupo Promoción y Prevención Farmacéutica, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
- Grupo de investigación en Tecnología en Regencia de Farmacia, Universidad de Antioquia U de A, Calle 70 No 52-21, Medellín, Colombia
| | - J. P. Botero-Aguirre
- Grupo Investigación clínica HPTU., Hospital Pablo Tobón Uribe, Calle 78B #69-240, Medellín, Antioquia 05001000 Colombia
| | - A. F. Valencia-Quintero
- Grupo Promoción y Prevención Farmacéutica, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
- Grupo Investigación clínica HPTU., Hospital Pablo Tobón Uribe, Calle 78B #69-240, Medellín, Antioquia 05001000 Colombia
| | - N. Ortiz
- Grupo Investigación clínica HPTU., Hospital Pablo Tobón Uribe, Calle 78B #69-240, Medellín, Antioquia 05001000 Colombia
| | - P. Amariles
- Grupo Promoción y Prevención Farmacéutica, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
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Botero JD, Guo W, Mosquera G, Wilson A, Johnson S, Aguirre-Garcia GA, Pachon LA. Gang confrontation: The case of Medellin (Colombia). PLoS One 2019; 14:e0225689. [PMID: 31805091 PMCID: PMC6894871 DOI: 10.1371/journal.pone.0225689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 11/10/2019] [Indexed: 11/28/2022] Open
Abstract
Protracted conflict is one of the largest human challenges that have persistently undermined economic and social progress. In recent years, there has been increased emphasis on using statistical and physical science models to better understand both the universal patterns and the underlying mechanics of conflict. Whilst macroscopic power-law fractal patterns have been shown for death-toll in wars and self-excitation models have been shown for roadside ambush attacks, very few works deal with the challenge of complex dynamics between gangs at the intra-city scale. Here, based on contributions to the historical memory of the conflict in Colombia, Medellin’s gang-confrontation-network is presented. It is shown that socio-economic and violence indexes are moderate to highly correlated to the structure of the network. Specifically, the death-toll of conflict is strongly influenced by the leading eigenvalues of the gangs’ conflict adjacency matrix, which serves a proxy for unstable self-excitation from revenge attacks. The distribution of links based on the geographic distance between gangs in confrontation leads to the confirmation that territorial control is a main catalyst of violence and retaliation among gangs. As a first attempt to explore the time evolution of the confrontation network, the Boltzmann-Lotka-Volterra (BLV) dynamic interaction network analysis is applied to quantify the spatial embeddedness of the dynamic relationship between conflicting gangs in Medellin. However, the non-stationary character of the violence in Medellin during the observation period restricts the application of the BLV model and results suggest that more involved and comprehensive models are needed to described the dynamics of Medellin’s armed conflict.
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Affiliation(s)
- Juan D. Botero
- Universidad de Antioquia, Instituto de Física, Medellin, Colombia
| | - Weisi Guo
- University of Warwick, Coventry, United Kingdom
- Alan Turing Institute, London, United Kingdom
| | - Guillem Mosquera
- University of Warwick, Coventry, United Kingdom
- Alan Turing Institute, London, United Kingdom
| | - Alan Wilson
- Alan Turing Institute, London, United Kingdom
| | | | - Gicela A. Aguirre-Garcia
- Centro Nacional de Memoria Histórica, Bogotá, Colombia
- Freie Universität Berlin, Lateinamerika-Institut, Berlin, Germany
| | - Leonardo A. Pachon
- Universidad de Antioquia, Instituto de Física, Medellin, Colombia
- guane Enterprises, Medellin, Colombia
- * E-mail:
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Galeano-Castañeda Y, Urrea-Aguirre P, Piedrahita S, Bascuñán P, Correa MM. Composition and structure of the culturable gut bacterial communities in Anopheles albimanus from Colombia. PLoS One 2019; 14:e0225833. [PMID: 31790474 PMCID: PMC6886788 DOI: 10.1371/journal.pone.0225833] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 11/13/2019] [Indexed: 11/18/2022] Open
Abstract
The understanding of factors affecting the gut bacterial communities in malaria vectors is essential for the design of vector control interventions, such as those based on a paratransgenic approach. One of the requirements of this method is the availability of bacteria from the mosquito susceptible to culture. Thus, the aim of this study was to evaluate the composition and structure of the culturable gut bacterial communities in field mosquitoes Anopheles albimanus from Colombia, in addition to generate a bacterial collection to further analyze microbial functional activity. Gut bacteria were isolated from An. albimanus larvae and adult mosquitoes collected in localities of the Atlantic and Pacific Coasts. The bacterial isolates were grouped in 28 morphospecies that corresponded to three phyla, three classes, nine families and 14 genera. The larvae guts from San Antero (Atlantic Coast) and Buenaventura (Pacific Coast) shared the genera Bacillus and Lysinibacillus and in adults, Bacillus and Bacillus cereus Group were registered in both localities. Gut bacterial richness was higher in adults from the Pacific with respect to the Atlantic Coast, while larval richness was similar in samples of both coasts. The Shannon index indicated uniformity in morphospecies abundances in both localities. Finally, the characterization of morphospecies from the gut of Anopheles albimanus mosquitoes from Colombia by culture-dependent methods complemented with 16S rRNA gene sequencing allowed the definition, at a finer resolution, of the composition and structure of these microbial communities. In addition, the obtained bacterial culture collection will allow further evaluation of the microorganisms for their potential as biocontrol agents.
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Affiliation(s)
- Yadira Galeano-Castañeda
- Grupo de Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Paula Urrea-Aguirre
- Grupo de Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Stefani Piedrahita
- Grupo de Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Priscila Bascuñán
- Grupo de Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Margarita M. Correa
- Grupo de Microbiología Molecular, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
- * E-mail:
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Xiong Z, Dankova G, Howe LJ, Lee MK, Hysi PG, de Jong MA, Zhu G, Adhikari K, Li D, Li Y, Pan B, Feingold E, Marazita ML, Shaffer JR, McAloney K, Xu SH, Jin L, Wang S, de Vrij FMS, Lendemeijer B, Richmond S, Zhurov A, Lewis S, Sharp GC, Paternoster L, Thompson H, Gonzalez-Jose R, Bortolini MC, Canizales-Quinteros S, Gallo C, Poletti G, Bedoya G, Rothhammer F, Uitterlinden AG, Ikram MA, Wolvius E, Kushner SA, Nijsten TEC, Palstra RJTS, Boehringer S, Medland SE, Tang K, Ruiz-Linares A, Martin NG, Spector TD, Stergiakouli E, Weinberg SM, Liu F, Kayser M. Novel genetic loci affecting facial shape variation in humans. eLife 2019; 8:e49898. [PMID: 31763980 PMCID: PMC6905649 DOI: 10.7554/elife.49898] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 11/22/2019] [Indexed: 12/14/2022] Open
Abstract
The human face represents a combined set of highly heritable phenotypes, but knowledge on its genetic architecture remains limited, despite the relevance for various fields. A series of genome-wide association studies on 78 facial shape phenotypes quantified from 3-dimensional facial images of 10,115 Europeans identified 24 genetic loci reaching study-wide suggestive association (p < 5 × 10-8), among which 17 were previously unreported. A follow-up multi-ethnic study in additional 7917 individuals confirmed 10 loci including six unreported ones (padjusted < 2.1 × 10-3). A global map of derived polygenic face scores assembled facial features in major continental groups consistent with anthropological knowledge. Analyses of epigenomic datasets from cranial neural crest cells revealed abundant cis-regulatory activities at the face-associated genetic loci. Luciferase reporter assays in neural crest progenitor cells highlighted enhancer activities of several face-associated DNA variants. These results substantially advance our understanding of the genetic basis underlying human facial variation and provide candidates for future in-vivo functional studies.
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Affiliation(s)
- Ziyi Xiong
- Department of Genetic IdentificationErasmus MC University Medical Center RotterdamRotterdamNetherlands
- Department of EpidemiologyErasmus MC University Medical Center RotterdamRotterdamNetherlands
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of GenomicsUniversity of Chinese Academy of Sciences (CAS)BeijingChina
| | - Gabriela Dankova
- Department of Genetic IdentificationErasmus MC University Medical Center RotterdamRotterdamNetherlands
| | - Laurence J Howe
- Medical Research Council Integrative Epidemiology Unit, Population Health SciencesUniversity of BristolBristolUnited Kingdom
| | - Myoung Keun Lee
- Center for Craniofacial and Dental Genetics, Department of Oral BiologyUniversity of PittsburghPittsburghUnited States
| | - Pirro G Hysi
- Department of Twin Research and Genetic EpidemiologyKing’s College LondonLondonUnited Kingdom
| | - Markus A de Jong
- Department of Genetic IdentificationErasmus MC University Medical Center RotterdamRotterdamNetherlands
- Department of Oral & Maxillofacial Surgery, Special Dental Care, and OrthodonticsErasmus MC University Medical Center RotterdamRotterdamNetherlands
- Department of Biomedical Data SciencesLeiden University Medical CenterLeidenNetherlands
| | - Gu Zhu
- QIMR Berghofer Medical Research InstituteBrisbaneAustralia
| | - Kaustubh Adhikari
- Department of Genetics, Evolution, and EnvironmentUniversity College LondonLondonUnited Kingdom
| | - Dan Li
- CAS Key Laboratory of Computational BiologyChinese Academy of Sciences (CAS)ShanghaiChina
- CAS-MPG Partner Institute for Computational Biology (PICB)Chinese Academy of Sciences (CAS)ShanghaiChina
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological SciencesChinese Academy of Sciences (CAS)ShanghaiChina
| | - Yi Li
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of GenomicsUniversity of Chinese Academy of Sciences (CAS)BeijingChina
| | - Bo Pan
- Department of Auricular ReconstructionPlastic Surgery HospitalBeijingChina
| | - Eleanor Feingold
- Center for Craniofacial and Dental Genetics, Department of Oral BiologyUniversity of PittsburghPittsburghUnited States
| | - Mary L Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral BiologyUniversity of PittsburghPittsburghUnited States
- Department of Human GeneticsUniversity of PittsburghPittsburghUnited States
| | - John R Shaffer
- Center for Craniofacial and Dental Genetics, Department of Oral BiologyUniversity of PittsburghPittsburghUnited States
- Department of Human GeneticsUniversity of PittsburghPittsburghUnited States
| | | | - Shu-Hua Xu
- CAS Key Laboratory of Computational BiologyChinese Academy of Sciences (CAS)ShanghaiChina
- CAS-MPG Partner Institute for Computational Biology (PICB)Chinese Academy of Sciences (CAS)ShanghaiChina
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological SciencesChinese Academy of Sciences (CAS)ShanghaiChina
- School of Life Science and TechnologyShanghaiTech UniversityShanghaiChina
- Center for Excellence in Animal Evolution and GeneticsChinese Academy of SciencesKunmingChina
| | - Li Jin
- CAS Key Laboratory of Computational BiologyChinese Academy of Sciences (CAS)ShanghaiChina
- CAS-MPG Partner Institute for Computational Biology (PICB)Chinese Academy of Sciences (CAS)ShanghaiChina
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological SciencesChinese Academy of Sciences (CAS)ShanghaiChina
- State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiChina
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life SciencesFudan UniversityShanghaiChina
| | - Sijia Wang
- CAS Key Laboratory of Computational BiologyChinese Academy of Sciences (CAS)ShanghaiChina
- CAS-MPG Partner Institute for Computational Biology (PICB)Chinese Academy of Sciences (CAS)ShanghaiChina
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological SciencesChinese Academy of Sciences (CAS)ShanghaiChina
- Center for Excellence in Animal Evolution and GeneticsChinese Academy of SciencesKunmingChina
| | - Femke MS de Vrij
- Department of PsychiatryErasmus MC University Medical Center RotterdamRotterdamNetherlands
| | - Bas Lendemeijer
- Department of PsychiatryErasmus MC University Medical Center RotterdamRotterdamNetherlands
| | - Stephen Richmond
- Applied Clinical Research and Public Health, University Dental SchoolCardiff UniversityCardiffUnited Kingdom
| | - Alexei Zhurov
- Applied Clinical Research and Public Health, University Dental SchoolCardiff UniversityCardiffUnited Kingdom
| | - Sarah Lewis
- Medical Research Council Integrative Epidemiology Unit, Population Health SciencesUniversity of BristolBristolUnited Kingdom
| | - Gemma C Sharp
- Medical Research Council Integrative Epidemiology Unit, Population Health SciencesUniversity of BristolBristolUnited Kingdom
- School of Oral and Dental SciencesUniversity of BristolBristolUnited Kingdom
| | - Lavinia Paternoster
- Medical Research Council Integrative Epidemiology Unit, Population Health SciencesUniversity of BristolBristolUnited Kingdom
| | - Holly Thompson
- Medical Research Council Integrative Epidemiology Unit, Population Health SciencesUniversity of BristolBristolUnited Kingdom
| | - Rolando Gonzalez-Jose
- Instituto Patagonico de Ciencias Sociales y Humanas, CENPAT-CONICETPuerto MadrynArgentina
| | | | - Samuel Canizales-Quinteros
- UNAM-Instituto Nacional de Medicina Genomica, Facultad de QuımicaUnidad de Genomica de Poblaciones Aplicada a la SaludMexico CityMexico
| | - Carla Gallo
- Laboratorios de Investigacion y Desarrollo, Facultad de Ciencias y FilosofıaUniversidad Peruana Cayetano HerediaLimaPeru
| | - Giovanni Poletti
- Laboratorios de Investigacion y Desarrollo, Facultad de Ciencias y FilosofıaUniversidad Peruana Cayetano HerediaLimaPeru
| | - Gabriel Bedoya
- GENMOL (Genetica Molecular)Universidad de AntioquiaMedellınColombia
| | | | - André G Uitterlinden
- Department of EpidemiologyErasmus MC University Medical Center RotterdamRotterdamNetherlands
- Department of Internal MedicineErasmus MC University Medical Center RotterdamRotterdamNetherlands
| | - M Arfan Ikram
- Department of EpidemiologyErasmus MC University Medical Center RotterdamRotterdamNetherlands
| | - Eppo Wolvius
- Department of Oral & Maxillofacial Surgery, Special Dental Care, and OrthodonticsErasmus MC University Medical Center RotterdamRotterdamNetherlands
| | - Steven A Kushner
- Department of PsychiatryErasmus MC University Medical Center RotterdamRotterdamNetherlands
| | - Tamar EC Nijsten
- Department of DermatologyErasmus MC University Medical Center RotterdamRotterdamNetherlands
| | - Robert-Jan TS Palstra
- Department of BiochemistryErasmus MC University Medical Center RotterdamRotterdamNetherlands
| | - Stefan Boehringer
- Department of Biomedical Data SciencesLeiden University Medical CenterLeidenNetherlands
| | | | - Kun Tang
- CAS Key Laboratory of Computational BiologyChinese Academy of Sciences (CAS)ShanghaiChina
- CAS-MPG Partner Institute for Computational Biology (PICB)Chinese Academy of Sciences (CAS)ShanghaiChina
- Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological SciencesChinese Academy of Sciences (CAS)ShanghaiChina
| | - Andres Ruiz-Linares
- State Key Laboratory of Genetic Engineering, School of Life SciencesFudan UniversityShanghaiChina
- Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life SciencesFudan UniversityShanghaiChina
- Aix-Marseille Université, CNRS, EFS, ADESMarseilleFrance
| | | | - Timothy D Spector
- Department of Twin Research and Genetic EpidemiologyKing’s College LondonLondonUnited Kingdom
| | - Evie Stergiakouli
- Medical Research Council Integrative Epidemiology Unit, Population Health SciencesUniversity of BristolBristolUnited Kingdom
- School of Oral and Dental SciencesUniversity of BristolBristolUnited Kingdom
| | - Seth M Weinberg
- Center for Craniofacial and Dental Genetics, Department of Oral BiologyUniversity of PittsburghPittsburghUnited States
- Department of Human GeneticsUniversity of PittsburghPittsburghUnited States
- Department of AnthropologyUniversity of PittsburghPittsburghUnited States
| | - Fan Liu
- Department of Genetic IdentificationErasmus MC University Medical Center RotterdamRotterdamNetherlands
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of GenomicsUniversity of Chinese Academy of Sciences (CAS)BeijingChina
| | - Manfred Kayser
- Department of Genetic IdentificationErasmus MC University Medical Center RotterdamRotterdamNetherlands
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Agudelo M, Rodriguez CA, Zuluaga AF, Vesga O. Nontherapeutic equivalence of a generic product of imipenem-cilastatin is caused more by chemical instability of the active pharmaceutical ingredient (imipenem) than by its substandard amount of cilastatin. PLoS One 2019; 14:e0211096. [PMID: 30726248 PMCID: PMC6364906 DOI: 10.1371/journal.pone.0211096] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 01/02/2019] [Indexed: 11/25/2022] Open
Abstract
Background We demonstrated therapeutic nonequivalence of “bioequivalent” generics for meropenem, but there is no data with generics of other carbapenems. Methods One generic product of imipenem-cilastatin was compared with the innovator in terms of in vitro susceptibility testing, pharmaceutical equivalence, pharmacokinetic (PK) and pharmacodynamic (PD) equivalence in the neutropenic mouse thigh, lung and brain infection models. Both pharmaceutical forms were then subjected to analytical chemistry assays (LC/MS). Results and conclusion The generic product had 30% lower concentration of cilastatin compared with the innovator of imipenem-cilastatin. Regarding the active pharmaceutical ingredient (imipenem), we found no differences in MIC, MBC, concentration or potency or AUC, confirming equivalence in terms of in vitro activity. However, the generic failed therapeutic equivalence in all three animal models. Its Emax against S. aureus in the thigh model was consistently lower, killing from 0.1 to 7.3 million less microorganisms per gram in 24 hours than the innovator (P = 0.003). Against K. pneumoniae in the lung model, the generic exhibited a conspicuous Eagle effect fitting a Gaussian equation instead of the expected sigmoid curve of the Hill model. In the brain infection model with P. aeruginosa, the generic failed when bacterial growth was >4 log10 CFU/g in 24 hours, but not if it was less than 2.5 log10 CFU/g. These large differences in the PD profile cannot be explained by the lower concentration of cilastatin, and rather suggested a failure attributable to the imipenem constituent of the generic product. Analytical chemistry assays confirmed that, besides having 30% less cilastatin, the generic imipenem was more acidic, less stable, and exhibited four different degradation masses that were absent in the innovator.
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Affiliation(s)
- Maria Agudelo
- GRIPE: Grupo Investigador de Problemas en Enfermedades Infecciosas, University of Antioquia (UdeA) Medical School, Medellín, Colombia
- Infectious Diseases Unit, Hospital Universitario San Vicente Fundación, Medellín, Colombia
| | - Carlos A. Rodriguez
- GRIPE: Grupo Investigador de Problemas en Enfermedades Infecciosas, University of Antioquia (UdeA) Medical School, Medellín, Colombia
- CIEMTO: Centro de Información de Medicamentos y Tóxicos, University of Antioquia (UdeA) Medical School, Medellín, Colombia
| | - Andres F. Zuluaga
- GRIPE: Grupo Investigador de Problemas en Enfermedades Infecciosas, University of Antioquia (UdeA) Medical School, Medellín, Colombia
- CIEMTO: Centro de Información de Medicamentos y Tóxicos, University of Antioquia (UdeA) Medical School, Medellín, Colombia
| | - Omar Vesga
- GRIPE: Grupo Investigador de Problemas en Enfermedades Infecciosas, University of Antioquia (UdeA) Medical School, Medellín, Colombia
- Infectious Diseases Unit, Hospital Universitario San Vicente Fundación, Medellín, Colombia
- * E-mail:
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López LF, Muñoz CO, Cáceres DH, Tobón ÁM, Loparev V, Clay O, Chiller T, Litvintseva A, Gade L, González Á, Gómez BL. Standardization and validation of real time PCR assays for the diagnosis of histoplasmosis using three molecular targets in an animal model. PLoS One 2017; 12:e0190311. [PMID: 29287097 PMCID: PMC5747470 DOI: 10.1371/journal.pone.0190311] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 12/12/2017] [Indexed: 12/04/2022] Open
Abstract
Histoplasmosis is considered one of the most important endemic and systemic mycoses worldwide. Until now few molecular techniques have been developed for its diagnosis. The aim of this study was to develop and evaluate three real time PCR (qPCR) protocols for different protein-coding genes (100-kDa, H and M antigens) using an animal model. Fresh and formalin-fixed and paraffin-embedded (FFPE) lung tissues from BALB/c mice inoculated i.n. with 2.5x106Histoplasma capsulatum yeast or PBS were obtained at 1, 2, 3, 4, 8, 12 and 16 weeks post-infection. A collection of DNA from cultures representing different clades of H. capsulatum (30 strains) and other medically relevant pathogens (36 strains of related fungi and Mycobacterium tuberculosis) were used to analyze sensitivity and specificity. Analytical sensitivity and specificity were 100% when DNAs from the different strains were tested. The highest fungal burden occurred at first week post-infection and complete fungal clearance was observed after the third week; similar results were obtained when the presence of H. capsulatum yeast cells was demonstrated in histopathological analysis. In the first week post-infection, all fresh and FFPE lung tissues from H. capsulatum-infected animals were positive for the qPCR protocols tested except for the M antigen protocol, which gave variable results when fresh lung tissue samples were analyzed. In the second week, all qPCR protocols showed variable results for both fresh and FFPE tissues. Samples from the infected mice at the remaining times post-infection and uninfected mice (controls) were negative for all protocols. Good agreement was observed between CFUs, histopathological analysis and qPCR results for the 100-kDa and H antigen protocols. We successfully standardized and validated three qPCR assays for detecting H. capsulatum DNA in fresh and FFPE tissues, and conclude that the 100-kDa and H antigen molecular assays are promising tests for diagnosing this mycosis.
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Affiliation(s)
- Luisa F. López
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas (CIB), Medellín, Colombia
| | - César O. Muñoz
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas (CIB), Medellín, Colombia
| | - Diego H. Cáceres
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas (CIB), Medellín, Colombia
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Ángela M. Tobón
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas (CIB), Medellín, Colombia
| | - Vladimir Loparev
- Biotechnology Core Facility Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Oliver Clay
- School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
- Cell and Molecular Biology Group, Corporación para Investigaciones Biológicas (CIB), Medellín, Colombia
| | - Tom Chiller
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Anastasia Litvintseva
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Lalitha Gade
- Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Ángel González
- Basic and Applied Microbiology Research Group (MICROBA), School of Microbiology, Universidad de Antioquia, Medellín, Colombia
| | - Beatriz L. Gómez
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas (CIB), Medellín, Colombia
- School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
- * E-mail:
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Rivera-Gutierrez HF, Martens T, Pinxten R, Eens M. Learning speed is affected by personality and reproductive investment in a songbird. PLoS One 2017; 12:e0185410. [PMID: 29020028 PMCID: PMC5636094 DOI: 10.1371/journal.pone.0185410] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 09/12/2017] [Indexed: 11/28/2022] Open
Abstract
Individuals from different taxa, including songbirds, differ consistently in behaviour and personality when facing different situations. Although our understanding of animal behaviour has increased, knowledge about between-individual differences in cognitive abilities is still limited. By using an experimental approach and a free-living songbird (Parus major) as a model, we attempted to understand between-individual differences in habituation to playbacks (as a proxy of learning speed), by investigating the role of personality, age and reproductive investment (clutch size). Pre-breeding males were tested for exploration (a proxy of personality) in standardized conditions. In addition, the same individuals were exposed to three playbacks in the field during incubation. Birds significantly moved less, stayed further away and overlapped less the playback with successive playback stimulation. While a decrease in the locomotor behaviour can be explained by personality, differences in habituation of overlapping were predicted by both reproductive investment and personality. Fast explorers habituated less. Moreover, males paired to females with larger clutches did not vary the intensity of overlapping. Since habituation requires information for recognition of non-threatening signals, personality may bias information gathering. While fast explorers may collect less information from the environment, slow explorers (reactive birds) seem to pay attention to environmental clues and collect detailed information. We provided evidence that the rate of habituation of behavioural responses, a proxy of cognitive abilities, may be affected by different factors and in a complex way.
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Affiliation(s)
- Hector Fabio Rivera-Gutierrez
- Grupo Ecología y Evolución de Vertebrados, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Medellin, Colombia
- University of Antwerp, Behavioural Ecology and Ecophysiology Group, Campus Drie Eiken, Universiteitsplein 1, Wilrijk, Belgium
- * E-mail:
| | - Tine Martens
- University of Antwerp, Behavioural Ecology and Ecophysiology Group, Campus Drie Eiken, Universiteitsplein 1, Wilrijk, Belgium
| | - Rianne Pinxten
- University of Antwerp, Behavioural Ecology and Ecophysiology Group, Campus Drie Eiken, Universiteitsplein 1, Wilrijk, Belgium
- University of Antwerp, Faculty of Social Sciences, Research unit Didactica, Venusstraat 35, Antwerp
| | - Marcel Eens
- University of Antwerp, Behavioural Ecology and Ecophysiology Group, Campus Drie Eiken, Universiteitsplein 1, Wilrijk, Belgium
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Jaramillo CM, de La Hoz F, Porras A, di Filippo D, Choconta-Piraquive LA, Payares E, Montes N, Navas MC. Characterization of hepatitis B virus in Amerindian children and mothers from Amazonas State, Colombia. PLoS One 2017; 12:e0181643. [PMID: 29016603 PMCID: PMC5634536 DOI: 10.1371/journal.pone.0181643] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 07/05/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Hepatitis B Virus (HBV) infection is a worldwide public health problem. In the 1980's a highly effective and safe vaccine against HBV was developed, although breakthrough infection still occasionally occurs because of the emergence of escape mutants. The aim of this study was to identify HBV genotypes and escape mutants in children and their mothers in Amerindian communities of the Amazonas State, Southern Colombia. METHODS Blood specimens collected from children and mothers belonging to 37 Amerindian communities in Amazonas state, were screened for HBsAg and anti-HBc using ELISA. The partial region containing the S ORF was amplified by nested PCR, and amplicons were sequenced. The phylogenetic analysis was performed using the MEGA 5.05 software. RESULTS Forty-six children (46/1275, 3.6%) and one hundred and seventy-seven mothers (177/572, 30.9%) were tested positive for the anti-HBc serological marker. Among them, 190 samples were tested for viral genome detection; 8.3% (2/31) serum samples obtained from children and 3.1% (5/159) from mothers were positive for the ORF S PCR. The predominant HBV genotype in the study population was F, subgenotype F1b; in addition, subgenotype F1a and genotype A were also characterized. Two HBV escape mutants were identified, G145R, reported worldwide, and W156*; this stop codon was identified in a child with occult HBV infection. Other mutations were found, L109R and G130E, located in critical positions of the HBsAg sequence. CONCLUSIONS This study aimed to characterize the HBV genotype F, subgenotypes F1b and F1a, and genotype A in Amerindian communities and for the first time escape mutants in Colombia. Further investigations are necessary to elucidate the frequency and the epidemiological impact of the escape mutants in the country.
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Affiliation(s)
- Carlos Mario Jaramillo
- Grupo de Gastrohepatologia, Facultad de Medicina, Universidad de Antioquia, UdeA, Medellin, Colombia
| | - Fernando de La Hoz
- Grupo de Epidemiologia y Evaluación en Salud Pública, Universidad Nacional, Bogota, Colombia
| | - Alexandra Porras
- Grupo de Epidemiologia y Evaluación en Salud Pública, Universidad Nacional, Bogota, Colombia
| | - Diana di Filippo
- Grupo de Gastrohepatologia, Facultad de Medicina, Universidad de Antioquia, UdeA, Medellin, Colombia
| | | | - Edra Payares
- Laboratorio Departamental de Salud Publica del Amazonas, Leticia, Colombia
| | - Neyla Montes
- Coordinacion Salud Publica, Alcaldia de Puerto Nariño, Puerto Nariño, Colombia
| | - Maria-Cristina Navas
- Grupo de Gastrohepatologia, Facultad de Medicina, Universidad de Antioquia, UdeA, Medellin, Colombia
- * E-mail:
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Múnera-Bedoya OD, Cassoli LD, Machado PF, Cerón-Muñoz MF. Influence of attitudes and behavior of milkers on the hygienic and sanitary quality of milk. PLoS One 2017; 12:e0184640. [PMID: 28926583 PMCID: PMC5604977 DOI: 10.1371/journal.pone.0184640] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 08/28/2017] [Indexed: 11/21/2022] Open
Abstract
Recognizing how human behaviors affect the milk process can be useful to understand variations in hygienic and sanitary parameters in bulk tank milk. Furthermore, this knowledge could be used to design management programs that guarantee milk quality, favoring the optimization of such processes. Forty-six milkers from the same number of dairy farms in Antioquia province (Colombia) were interviewed to establish the main factors associated to milk quality. Technical knowledge, motivations, and behavior of the personnel and its effect on hygienic and sanitary quality of milk were evaluated. Quality was assessed in terms of colony-forming units (CFU) and somatic cell count (SCC) in bulk tank milk. Two factors from a multivariate mixed data analysis were evaluated. One of those factors explained 9.51% of the total variability, related with in-farm availability and use of tools and the relationships between milker and manager. The other factor, associated with work environment and recognition, explained 6.97% of the total variability. The variables that best explained CFU levels were Knowledge of the udder condition at milking, and Milking type (parlor or pasture). The SCC was associated to knowledge of animal handling, schooling of milkers, milking site, and the groups derived from the cluster analysis by farm. In conclusion, milker attitudes and behaviors can affect CFU and SCC in bulk tank milk.
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Affiliation(s)
- Oscar David Múnera-Bedoya
- Facultad de Ciencias Agrarias, Universidad de Antioquia, Medellín, Antioquia, Colombia
- Grupo de Investigación en Genética, Mejoramiento y Modelación Animal (GaMMA), Universidad de Antioquia, Medellín, Antioquia, Colombia
- * E-mail:
| | - Laerte D. Cassoli
- Clínica do Leite, Universidade de São Paulo – ESALQ, Piracicaba, São Paulo, Brasil
| | - Paulo F. Machado
- Clínica do Leite, Universidade de São Paulo – ESALQ, Piracicaba, São Paulo, Brasil
| | - Mario Fernando Cerón-Muñoz
- Facultad de Ciencias Agrarias, Universidad de Antioquia, Medellín, Antioquia, Colombia
- Grupo de Investigación en Genética, Mejoramiento y Modelación Animal (GaMMA), Universidad de Antioquia, Medellín, Antioquia, Colombia
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50
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García-Huertas P, Mejía-Jaramillo AM, Machado CR, Guimarães AC, Triana-Chávez O. Prostaglandin F2α synthase in Trypanosoma cruzi plays critical roles in oxidative stress and susceptibility to benznidazole. R Soc Open Sci 2017; 4:170773. [PMID: 28989779 PMCID: PMC5627119 DOI: 10.1098/rsos.170773] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 08/10/2017] [Indexed: 05/17/2023]
Abstract
Nifurtimox (Nfx) and benznidazole (Bz) are the current drugs used for the treatment of Chagas disease. The mechanisms of action and resistance to these drugs in this parasite are poorly known. Prostaglandin F2α synthase or old yellow enzyme (OYE), an NAD(P)H flavin oxidoreductase, has been involved in the activation pathway of other trypanocidal drugs such as Nfx; however, its role in the mechanism of action of Bz is uncertain. In this paper, we performed some experiments of functional genomics in the parasite Trypanosoma cruzi with the aim to test the role of this gene in the resistance to Bz. For this, we overexpressed this gene in sensitive parasites and evaluated the resistance level to the drug and other chemical compounds such as hydrogen peroxide, methyl methanesulfonate and gamma radiation. Interestingly, parasites overexpressing OYE showed alteration of enzymes associated with oxidative stress protection such as superoxide dismutase A and trypanothione reductase. Furthermore, transfected parasites were more sensitive to drugs, genetic damage and oxidative stress. Additionally, transfected parasites were less infective than wild-type parasites and they showed higher alteration in mitochondrial membrane potential and cell cycle after treatment with Bz. These results supply essential information to help further the understanding of the mechanism of action of Bz in T. cruzi.
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Affiliation(s)
- Paola García-Huertas
- Grupo Biología y Control de Enfermedades Infecciosas-BCEI, Instituto de Biología, Universidad de Antioquia, Calle 70 52-21, Medellín, Colombia
| | - Ana María Mejía-Jaramillo
- Grupo Biología y Control de Enfermedades Infecciosas-BCEI, Instituto de Biología, Universidad de Antioquia, Calle 70 52-21, Medellín, Colombia
| | - Carlos Renato Machado
- Departamento de Bioquímica e Inmunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Anna Cláudia Guimarães
- Departamento de Bioquímica e Inmunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Omar Triana-Chávez
- Grupo Biología y Control de Enfermedades Infecciosas-BCEI, Instituto de Biología, Universidad de Antioquia, Calle 70 52-21, Medellín, Colombia
- Author for correspondence: Omar Triana-Chávez e-mail:
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