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González-Restrepo D, Zuluaga-Vélez A, Orozco LM, Sepúlveda-Arias JC. Silk fibroin-based dressings with antibacterial and anti-inflammatory properties. Eur J Pharm Sci 2024; 195:106710. [PMID: 38281552 DOI: 10.1016/j.ejps.2024.106710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 01/03/2024] [Accepted: 01/22/2024] [Indexed: 01/30/2024]
Abstract
Silk fibroin is a fibrillar protein obtained from arthropods such as mulberry and non-mulberry silkworms. Silk fibroin has been used as a dressing in wound treatment for its physical, chemical, mechanical, and biological properties. This systematic review analyzed studies from PubMed, Web of Science, and Scopus databases to identify the molecules preferred for functionalizing silk fibroin-based dressings and to describe their mechanisms of exhibiting anti-inflammatory and antibacterial properties. The analysis of the selected articles allowed us to classify the dressings into different conformations, such as membranes, films, hydrogels, sponges, and bioadhesives. The incorporation of various molecules, including antibiotics, natural products, peptides, nanocomposites, nanoparticles, secondary metabolites, growth factors, and cytokines, has allowed the development of dressings that promote wound healing with antibacterial and immunomodulatory properties. In addition, silk fibroin-based dressings have been established to have the potential to regenerate wounds such as venous ulcers, arterial ulcers, diabetic foot, third-degree burns, and neoplastic ulcers. Evaluation of the efficacy of silk fibroin-based dressings in tissue engineering is an area of great activity that has shown significant advances in recent years.
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Affiliation(s)
- David González-Restrepo
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Augusto Zuluaga-Vélez
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Lina M Orozco
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia; Grupo Polifenoles, Facultad de Tecnologías, Escuela de Química, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Juan C Sepúlveda-Arias
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia.
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2
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Cañón-Franco WA, López-Orozco N, Quiroz-Bucheli A, Kwok OCH, Dubey JP, Sepúlveda-Arias JC. First serological and molecular detection of Toxoplasma gondii in guinea pigs (Cavia porcellus) used for human consumption in Nariño, Colombia, South America. Vet Parasitol Reg Stud Reports 2022; 36:100801. [PMID: 36436890 DOI: 10.1016/j.vprsr.2022.100801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 10/11/2022] [Accepted: 10/23/2022] [Indexed: 11/09/2022]
Abstract
Consumption of undercooked meat is one of the main transmission routes for Toxoplasma gondii worldwide. In the South American Andes, the guinea pig (Cavia porcellus) is a domestic rodent representing one of the main sources of animal proteins for indigenous communities. Although T. gondii infects a wide range of rodents worldwide, the natural impact of the infection on guinea pig populations is still unknown. Our study conducted in guinea pigs that were bred in traditional systems located in the village of José María Hernández (Nariño, Colombia) revealed the presence of T. gondii antibodies in 33.3% (23 out of 69) guinea pigs evaluated, with a cut-off point of 25 for the modified direct agglutination test. Conventional PCR detection of the T. gondii-specific RE fragment (529 bp) in 207 collected tissues demonstrated the presence of T. gondii DNA in several organs, including the brain (16/69), muscle (12/69), and heart (4/69), with an overall molecular detection frequency of 27.5% (19 out of 69 guinea pigs). This is the first report of natural infection of guinea pigs with T. gondii, demonstrating their potential epidemiological role in transmitting the infection to autochthonous populations.
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Affiliation(s)
| | - Natalia López-Orozco
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Adriana Quiroz-Bucheli
- Unidad Municipal de Asistencia Técnica Agropecuaria, Alcaldía de Pupiales, Pupiales, Nariño, Colombia
| | - Oliver C H Kwok
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, MD 20705-2350, USA
| | - Jitender P Dubey
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, MD 20705-2350, USA
| | - Juan C Sepúlveda-Arias
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia..
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Cardona-Trujillo MC, Ocampo-Cárdenas T, Tabares-Villa FA, Zuluaga-Vélez A, Sepúlveda-Arias JC. Recent molecular techniques for the diagnosis of Zika and Chikungunya infections: A systematic review. Heliyon 2022; 8:e10225. [PMID: 36033321 PMCID: PMC9404361 DOI: 10.1016/j.heliyon.2022.e10225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/05/2022] [Accepted: 08/03/2022] [Indexed: 11/26/2022] Open
Abstract
Zika virus (ZIKV) and Chikungunya virus (CHIKV) are arboviruses that cause important viral diseases affecting the world population. Both viruses can produce remarkably similar clinical manifestations, co-circulate in a geographic region, and coinfections have been documented, thus making clinical diagnosis challenging. Therefore, it is urgent to have better molecular techniques that allow a differential, sensitive and rapid diagnosis from body fluid samples. This systematic review explores evidence in the literature regarding the advances in the molecular diagnosis of Zika and Chikungunya in humans, published from 2010 to March 2021. Four databases were consulted (Scopus, PubMed, Web of Science, and Embase) and a total of 31 studies were included according to the selection criteria. Our analysis highlights the need for standardization in the report and interpretation of new promising diagnostic methods. It also examines the benefits of new alternatives for the molecular diagnosis of these arboviruses, in contrast to established methods.
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Affiliation(s)
- María C Cardona-Trujillo
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Tatiana Ocampo-Cárdenas
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Fredy A Tabares-Villa
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Augusto Zuluaga-Vélez
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Juan C Sepúlveda-Arias
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
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Mendoza-Tobar LL, Meza-Cabrera IA, Sepúlveda-Arias JC, Guerrero-Vargas JA. Comparison of the Scorpionism Caused by Centruroidesmargaritatus, Tityuspachyurus and Tityus n. sp. aff. metuendus Scorpion Venoms in Colombia. Toxins (Basel) 2021; 13:toxins13110757. [PMID: 34822541 PMCID: PMC8625436 DOI: 10.3390/toxins13110757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/02/2021] [Accepted: 10/11/2021] [Indexed: 01/04/2023] Open
Abstract
Among other scorpion species, Colombia has two genera of the Buthidae family Centruroides and Tityus, considered to be dangerous to humans. This research shares scientific knowledge aiming to a better understanding about the pathophysiological effects of such venoms. The venom of the three species: Centruroides margaritarus, Tityus pachyurus, and T. n. sp. aff. metuendus with biomedical interest were studied. An initial pre-glycemic sample was taken from ICR mice. They were later intraperitoneally inoculated with doses of 35% and 70% of LD50 of total venom. Poisoning signs were observed during a 6-h period to determine the level of scorpionism. After observation, a second glycemic sample was taken, and a histopathological evaluation of different organs was performed. This work revealed that all three venoms showed considerably notorious histopathological alterations in main organs such as heart and lungs; and inducing multiple organ failure, in relation to the glycemia values, only C. margaritatus and T. n. sp. aff. metuendus showed significant changes through manifestation of hyperglycemia. According to the Colombian scorpionism level; signs were mild to severe affecting the autonomous nervous system.
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Affiliation(s)
- Leydy Lorena Mendoza-Tobar
- Programa de Doctorado en Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira 660003, Colombia; (L.L.M.-T.); (J.C.S.-A.)
- Grupo de Investigaciones Herpetológicas y Toxinológicas, Centro de Investigaciones Biomédicas-Bioterio, Departamento de Biología, Facultad de Ciencias Naturales, Exactas y de la Educación, Universidad del Cauca, Popayán 190002, Colombia
| | | | - Juan C. Sepúlveda-Arias
- Programa de Doctorado en Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira 660003, Colombia; (L.L.M.-T.); (J.C.S.-A.)
| | - Jimmy Alexander Guerrero-Vargas
- Grupo de Investigaciones Herpetológicas y Toxinológicas, Centro de Investigaciones Biomédicas-Bioterio, Departamento de Biología, Facultad de Ciencias Naturales, Exactas y de la Educación, Universidad del Cauca, Popayán 190002, Colombia
- Correspondence:
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Zuluaga-Vélez A, Quintero-Martinez A, Orozco LM, Sepúlveda-Arias JC. Silk fibroin nanocomposites as tissue engineering scaffolds - A systematic review. Biomed Pharmacother 2021; 141:111924. [PMID: 34328093 DOI: 10.1016/j.biopha.2021.111924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 07/06/2021] [Accepted: 07/12/2021] [Indexed: 12/13/2022] Open
Abstract
Silk fibroin is a protein with intrinsic characteristics that make it a good candidate as a scaffold for tissue engineering. Recent works have enhanced its benefits by adding inorganic phases that interact with silk fibroin in different ways. A systematic review was performed in four databases to study the physicochemical and biological performance of silk fibroin nanocomposites. In the last decade, only 51 articles contained either in vitro cell culture models or in vivo tests. The analysis of such works resulted in their classification into the following scaffold types: particles, mats and textiles, films, hydrogels, sponge-like structures, and mixed conformations. From the physicochemical perspective, the inorganic phase imbued in silk fibroin nanocomposites resulted in better stability and mechanical performance. This review revealed that the inorganic phase may be associated with specific biological responses, such as neovascularisation, cell differentiation, cell proliferation, and antimicrobial and immunomodulatory activity. The study of nanocomposites as tissue engineering scaffolds is a highly active area mostly focused on bone and cartilage regeneration with promising results. Nonetheless, there are still many challenges related to their application in other tissues, a better understanding of the interaction between the inorganic and organic phases, and the associated biological response.
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Affiliation(s)
- Augusto Zuluaga-Vélez
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Adrián Quintero-Martinez
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Lina M Orozco
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia; Grupo Polifenoles, Facultad de Tecnologías, Escuela de Química, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Juan C Sepúlveda-Arias
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia.
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Guerrero-Pepinosa NY, Cardona-Trujillo MC, Garzón-Castaño SC, Veloza LA, Sepúlveda-Arias JC. Antiproliferative activity of thiazole and oxazole derivatives: A systematic review of in vitro and in vivo studies. Biomed Pharmacother 2021; 138:111495. [PMID: 33765586 DOI: 10.1016/j.biopha.2021.111495] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/03/2021] [Accepted: 03/09/2021] [Indexed: 01/11/2023] Open
Abstract
Thiazole and oxazole are compounds with a heterocyclic nucleus that have attracted the attention of medicinal chemistry due to the great variety of biological activities that they enable. In recent years, their study has increased, finding a wide range of biological activities, including antifungal, antiparasitic, anti-inflammatory, and anticancer activities. This systematic review provides evidence from the literature on the antiproliferative and antitumor activities of thiazole and oxazole and their derivatives from 2014 to April 2020. Three bibliographical databases were consulted (PubMed, Web of Science, and Scopus), and a total of 32 studies were included in this paper based on our eligibility criteria. The analysis of the activity-structure relationship allows us to conclude that most of the promising compounds identified contained thiazole nuclei or derivatives.
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Affiliation(s)
- Nancy Y Guerrero-Pepinosa
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - María C Cardona-Trujillo
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Sandra C Garzón-Castaño
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia; Grupo Biomedicina, Fundación Universitaria Autónoma de las Américas, Pereira, Colombia
| | - Luz Angela Veloza
- Grupo Polifenoles, Facultad de Tecnología, Escuela de Química, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Juan C Sepúlveda-Arias
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia.
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Cardona-Ospina JA, Villalba-Miranda MF, Palechor-Ocampo LA, Mancilla LI, Sepúlveda-Arias JC. A systematic review of FTA cards® as a tool for viral RNA preservation in fieldwork: Are they safe and effective? Prev Vet Med 2019; 172:104772. [PMID: 31607414 PMCID: PMC7126379 DOI: 10.1016/j.prevetmed.2019.104772] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 09/08/2019] [Accepted: 09/08/2019] [Indexed: 01/06/2023]
Abstract
BackgroundDetection and characterization of viral RNA pathogens from fieldwork are challenging due to the instability of the RNA molecule. FTA cards® have proved useful for sample storage and latter identification of pathogens with importance for agricultural, animal and human health: however, for optimal handling, processing, and biosafety measures are not well-established. ObjectiveThis systematic review aims to summarize the reported effectiveness of FTA cards® for storage and transport of viral RNA, as well as the conditions for their handling and use in downstream processes. Finally, the biosafety measures required to protect researchers and clinical lab workers are considered. MethodsWe performed a systematic review following the PRISMA statement. We searched MEDLINE (PubMed), Scopus and Web of Science using the keywords “FTA cards” AND “RNA”. Articles were screened by title and abstract, and after examination of inclusion and exclusion criteria, relevant information was extracted. The quality of the studies was assessed, and the evidence was qualitatively summarized. ResultsA total of 175 records were retrieved, and 11 additional documents were found by checking references of the eligible articles. A total of 47 articles were included. Samples from animals accounted for 38.3% of the publications, which identified viruses that cause disease in poultry, wild birds, suids, or bovids. Three different methods for RNA extraction were reported. Other factors that vary across reports include the size of RNA amplicon, storage temperature, and duration of storage. Only fourteen articles tested the inactivation of the virus on the FTA card®, and in one case, the virus remained infective. ConclusionFTA cards® could be a suitable option for RNA virus storage and transport for fieldwork in areas where proper conditions for RNA preservation are difficult to achieve. Three different protocols have been used for RNA detection from this matrix. Biospecimens in the form of dried blood spots should be considered potentially infectious unless specifically treated to inactivate viral pathogens.
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Affiliation(s)
- Jaime A Cardona-Ospina
- Grupo de Investigación Infección e Inmunidad, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Building 14, Carrera 27 #10-02, Barrio Álamos, Pereira, Risaralda, 660003, Colombia; Public Health and Infection Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Building 14, Carrera 27 #10-02, Barrio Álamos, Pereira, Risaralda, 660003, Colombia; Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de las Américas, Av. Las Américas #98-56, Pereira, Risaralda, 660001, Colombia; Emerging Infectious Diseases and Tropical Medicine Research Group, Instituto para la Investigación en Ciencias Biomédicas - Sci-Help, Cra 37B #36-05, Pereira, Risaralda, 660009, Colombia.
| | - Manuel F Villalba-Miranda
- Grupo de Investigación Infección e Inmunidad, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Building 14, Carrera 27 #10-02, Barrio Álamos, Pereira, Risaralda, 660003, Colombia
| | - Leidy A Palechor-Ocampo
- Grupo de Investigación Infección e Inmunidad, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Building 14, Carrera 27 #10-02, Barrio Álamos, Pereira, Risaralda, 660003, Colombia
| | - Lida I Mancilla
- Grupo de Investigación Infección e Inmunidad, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Building 14, Carrera 27 #10-02, Barrio Álamos, Pereira, Risaralda, 660003, Colombia
| | - Juan C Sepúlveda-Arias
- Grupo de Investigación Infección e Inmunidad, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Building 14, Carrera 27 #10-02, Barrio Álamos, Pereira, Risaralda, 660003, Colombia
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Zuluaga-Vélez A, Cómbita-Merchán DF, Buitrago-Sierra R, Santa JF, Aguilar-Fernández E, Sepúlveda-Arias JC. Silk fibroin hydrogels from the Colombian silkworm Bombyx mori L: Evaluation of physicochemical properties. PLoS One 2019; 14:e0213303. [PMID: 30830943 PMCID: PMC6398845 DOI: 10.1371/journal.pone.0213303] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 02/19/2019] [Indexed: 12/17/2022] Open
Abstract
Hydrogel scaffolds are important materials in tissue engineering, and their characterization is essential to determine potential biomedical applications according to their mechanical and structural behavior. In this work, silk fibroin hydrogels were synthesized by two different methods (vortex and sonication), and agarose hydrogels were also obtained for comparison purposes. Samples were characterized by scanning electron microscopy, infrared analysis, thermo-gravimetrical analysis, confined compression test, and rheological test. The results indicate that nanofibers can be obtained via both silk fibroin and agarose hydrogels. The mechanical tests showed that the Young's modulus is similar to those found in the literature, with the highest value for agarose hydrogels. All the hydrogels showed a shear-thinning behavior. Additionally, the MTT test revealed that silk fibroin hydrogels had low cytotoxicity in THP-1 and HEK-293 cells, whereas the agarose hydrogels showed high toxicity for the THP-1 cell line. The results indicate that silk fibroin hydrogels obtained from a Colombian silkworm hybrid are suitable for the development of scaffolds, with potential applications in tissue engineering.
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Affiliation(s)
- Augusto Zuluaga-Vélez
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | | | | | - Juan Felipe Santa
- Facultad de Ingenierías, Instituto Tecnológico Metropolitano—ITM, Medellín, Colombia
- Grupo de Tribología y Superficies, Universidad Nacional de Colombia, Sede Medellín, Colombia
| | - Enrique Aguilar-Fernández
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Juan C. Sepúlveda-Arias
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
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Marín-Ocampo L, Veloza LA, Abonia R, Sepúlveda-Arias JC. Anti-inflammatory activity of triazine derivatives: A systematic review. Eur J Med Chem 2018; 162:435-447. [PMID: 30469039 DOI: 10.1016/j.ejmech.2018.11.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/08/2018] [Accepted: 11/09/2018] [Indexed: 02/06/2023]
Abstract
Triazines are heterocyclic compounds with a variety of biological activities that have been increasingly studied in recent years due to their versatile structure (three isoforms) and the different derivatives that can be synthesized from them to ensure functional motifs. This systematic review provides the evidence in the literature of the in vitro and in vivo anti-inflammatory activity of triazine derivatives from 2008 to June 2018. Four bibliographical databases were consulted (PubMed, Web of Science, EMBASE and Scopus), and a total of 48 studies were included in this paper based on our eligibility criteria. Although 35.17% of evaluated triazines were demonstrated to be promising anti-inflammatory agents, further studies need to be conducted to explore their pharmacological profiles in the medical research of drug discovery to control the risk factors and pathophysiology of several chronic inflammation-based diseases.
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Affiliation(s)
- Laura Marín-Ocampo
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Luz Angela Veloza
- Grupo Polifenoles, Facultad de Tecnologías, Escuela de Química, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Rodrigo Abonia
- Department of Chemistry, Universidad del Valle, Cali, Colombia
| | - Juan C Sepúlveda-Arias
- Grupo Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia.
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10
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Castaño-Ramírez OM, Sepúlveda-Arias JC, Duica K, Díaz Zuluaga AM, Vargas C, López-Jaramillo C. Inflammatory Markers in the Staging of Bipolar Disorder: A Systematic Review of the Literature. ACTA ACUST UNITED AC 2018; 47:119-128. [DOI: 10.1016/j.rcp.2017.01.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 12/15/2016] [Accepted: 01/11/2017] [Indexed: 12/21/2022]
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Cardona-Ospina JA, Sepúlveda-Arias JC, Mancilla L, Gutierrez-López LG. Plant expression systems, a budding way to confront chikungunya and Zika in developing countries? F1000Res 2016; 5:2121. [PMID: 27781090 PMCID: PMC5054818 DOI: 10.12688/f1000research.9502.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/30/2016] [Indexed: 12/25/2022] Open
Abstract
Plant expression systems could be used as biofactories of heterologous proteins that have the potential to be used with biopharmaceutical aims and vaccine design. This technology is scalable, safe and cost-effective and it has been previously proposed as an option for vaccine and protein pharmaceutical development in developing countries. Here we present a proposal of how plant expression systems could be used to address Zika and chikungunya outbreaks through development of vaccines and rapid diagnostic kits.
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Affiliation(s)
- Jaime A Cardona-Ospina
- Infection and Immunity Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Colombia; Public Health and Infection Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Pereira, Colombia
| | - Juan C Sepúlveda-Arias
- Infection and Immunity Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - L Mancilla
- Infection and Immunity Research Group, Faculty of Health Sciences, Universidad Tecnológica de Pereira, Pereira, Colombia
| | - Luis G Gutierrez-López
- Biodiversity and Biotechnology Research Group, Faculty of Enviromental Sciences, Universidad Tecnológica de Pereira, Pereira, Colombia
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Alvarado-Socarras JL, Sepúlveda-Arias JC, Zambrano LI, Rodriguez-Morales AJ. [Relevance of laboratory diagnosis of Zika during pregnancy and its possible association with Guillain-Barré syndrome]. Med Clin (Barc) 2016; 147:182-3. [PMID: 27236614 DOI: 10.1016/j.medcli.2016.03.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 03/16/2016] [Indexed: 11/18/2022]
Affiliation(s)
- Jorge L Alvarado-Socarras
- Red Colombiana de Colaboración en Zika (RECOLZIKA), Pereira, Risaralda, Colombia; Organización Latinoamericana para el Fomento de la Investigación en Salud (OLFIS), Bucaramanga, Santander, Colombia; Unidad de Neonatología, Departamento de Pediatría, Fundación Cardiovascular de Colombia, Floridablanca, Santander, Colombia
| | - Juan C Sepúlveda-Arias
- Red Colombiana de Colaboración en Zika (RECOLZIKA), Pereira, Risaralda, Colombia; Grupo de Investigación Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Risaralda, Colombia
| | - Lysien I Zambrano
- Red Colombiana de Colaboración en Zika (RECOLZIKA), Pereira, Risaralda, Colombia; Facultad de Ciencias Médicas, Universidad Nacional Autónoma de Honduras, Tegucigalpa, Honduras; Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP-EPM), São Paulo, Brasil
| | - Alfonso J Rodriguez-Morales
- Red Colombiana de Colaboración en Zika (RECOLZIKA), Pereira, Risaralda, Colombia; Organización Latinoamericana para el Fomento de la Investigación en Salud (OLFIS), Bucaramanga, Santander, Colombia; Grupo de Investigación Infección e Inmunidad, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Risaralda, Colombia; Grupo de Investigación Salud Pública e Infección, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Risaralda, Colombia.
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Pinzón OA, Sánchez JC, Sepúlveda-Arias JC, López-Zapata DF. Assessment of human lymphocyte proliferation associated with metabolic syndrome. J Endocrinol Invest 2015; 38:1277-82. [PMID: 25981082 DOI: 10.1007/s40618-015-0307-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/03/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND Metabolic syndrome (MetS), a cluster of various metabolic conditions, has become epidemic and causes increased morbidity and mortality. PURPOSE The aim of this study was to compare lymphocyte proliferation under two different stimuli, Concanavalin A (ConA) and insulin, in a group of patients with MetS (Group 1) and a healthy group (Group 2). METHODS Group 1 consisted of 53 patients who met the diagnostic criteria for MetS. Group 2 consisted of 63 patients without MetS. All individuals were evaluated for lipid profile and glycemia. Lymphocyte extraction and culture were performed for each subject and lymphocyte proliferation was assessed using the Alamar blue technique. RESULTS There was no gender difference between both groups, but in terms of age, there was a significant difference. The use of Con A at concentrations of 1 and 5 µg/mL induced a high lymphocyte proliferation in both groups. In contrast, when different concentrations of insulin were added, no significant changes in lymphocyte proliferation were observed. However, the proliferation of lymphocytes was significantly higher in Group 1 compared to Group 2 under insulin stimulus, which did not happen under ConA stimulation. Even after age and gender correction, this difference was maintained. CONCLUSIONS The increased lymphocyte proliferative response to insulin in patients with MetS found in this study suggests a role of the lymphocyte response to insulin in the pathophysiology of MetS. This response may be used as an immuno-biological marker for MetS, although further studies to evaluate its clinical usefulness need to be conducted.
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Affiliation(s)
- O A Pinzón
- Faculty of Health Sciences, Universidad Tecnológica de Pereira, A.A. 97, La Julita, Pereira, Risaralda, Colombia.
| | - J C Sánchez
- Faculty of Health Sciences, Universidad Tecnológica de Pereira, A.A. 97, La Julita, Pereira, Risaralda, Colombia
| | - J C Sepúlveda-Arias
- Faculty of Health Sciences, Universidad Tecnológica de Pereira, A.A. 97, La Julita, Pereira, Risaralda, Colombia
| | - D F López-Zapata
- Faculty of Health Sciences, Universidad Tecnológica de Pereira, A.A. 97, La Julita, Pereira, Risaralda, Colombia
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14
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Alvarez-Aldana A, Martínez JW, Sepúlveda-Arias JC. Comparison of five protocols to extract DNA from paraffin-embedded tissues for the detection of human papillomavirus. Pathol Res Pract 2014; 211:150-5. [PMID: 25444238 DOI: 10.1016/j.prp.2014.10.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 10/14/2014] [Accepted: 10/23/2014] [Indexed: 12/22/2022]
Abstract
Formalin-fixed paraffin-embedded (FFPE) tissues are a valuable source of DNA with which to perform large retrospective studies on the epidemiology of HPV infection. Five different DNA extraction protocols were carried out to evaluate the DNA obtained from FFPE samples with polymerase chain reaction (PCR) using two primer sets to amplify a constitutive human gene, β-globin, and two primer sets to detect the L1 and E6 HPV genes. From the five DNA extraction protocols evaluated, the best results were obtained with protocol A, corresponding to a crude extract from the sample. With the procedures described herein, we were able to amplify DNA extracted from archival paraffin blocks stored for six years. However, the amplification products were more efficiently obtained with primers that amplified shorter fragments. This result indicates that a major factor limiting the extraction process in these samples is DNA fragmentation, a factor that will naturally vary between the different specimens evaluated. Also, depending upon the extraction method, PCR amplification of a human gene does not necessarily guarantee the successful extraction of viral DNA. In conclusion, different DNA and HPV detection methods can significantly influence the results. Therefore, the DNA extraction methods and primers used for DNA amplification in fixed tissues need to be chosen carefully, depending on the specific requirements of the study being carried out.
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Affiliation(s)
- Adalucy Alvarez-Aldana
- Facultad de Ciencias de la Salud, Departamento de Ciencias Básicas, Grupo Infección e Inmunidad, Universidad Tecnológica de Pereira, Pereira, Colombia.
| | - José William Martínez
- Facultad de Ciencias de la Salud, Departamento de Medicina Comunitaria, Grupo Epidemiología, Salud y Violencia, Universidad Tecnológica de Pereira, Pereira, Colombia.
| | - Juan C Sepúlveda-Arias
- Facultad de Ciencias de la Salud, Departamento de Ciencias Básicas, Grupo Infección e Inmunidad, Universidad Tecnológica de Pereira, Pereira, Colombia.
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15
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Isaza C, Sepúlveda-Arias JC, Agudelo BI, Arciniegas W, Henao J, Porras GL, Beltrán L. β(2) -adrenoreceptor polymorphisms in asthmatic and non-asthmatic schoolchildren from Colombia and their relationship to treatment response. Pediatr Pulmonol 2012; 47:848-55. [PMID: 22328447 DOI: 10.1002/ppul.22521] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Accepted: 11/19/2011] [Indexed: 11/10/2022]
Abstract
Asthma is a chronic and recurrent disease. Its high prevalence around the world is the result of a complex interaction between genetic and environmental factors. The genetic aspects of susceptibility, severity, and response to treatment in asthma are of great scientific interest. The purpose of the study was to establish the relationship between the Gln27Glu and Arg16Gly alleles of the β(2) -adrenergic receptor (ADRB2) gene with respect to the susceptibility to and severity of asthma, as well as the response to treatment in mestizo schoolchildren. 109 schoolchildren with asthma diagnosis and 137 asymptomatic controls were genotyped for the Arg16Gly and Gln27Glu alleles of the ADRB2 gene by minisequencing. Allele, genotype, and haplotype frequencies of the ADRB2 gene between asthmatic and non-asthmatic as well as demographic, clinical, and spirometric variables among asthmatic patients according to their genotype were compared. ADRB2 gene expression was determined by real-time quantitative PCR. No statistical differences were found in allele, genotype, and haplotype frequencies of the ADRB2 gene between cases and controls. We did not find differences between asthmatic patients classified according to their ADRB2 genotypes and haplotypes when evaluating demographic, clinical, and spirometric variables. The ADRB2 genotype and haplotype are not associated with spirometric responses or ADRB2 gene expression after administration of a β-(2) agonist plus a glucocorticoid. These results suggest that in the group of mestizo schoolchildren studied, the Arg16Gly and Gln27Glu polymorphisms are not markers of susceptibility or severity of asthma and do not affect ADRB2 gene expression during the rescue therapy.
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Affiliation(s)
- Carlos Isaza
- Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, Pereira, Colombia
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Veloza LA, Orozco LM, Sepúlveda-Arias JC. Use of dimethyldioxirane in the epoxidation of the main constituents of the essential oils obtained from Tagetes lucida, Cymbopogon citratus, Lippia alba and Eucalyptus citriodora. Nat Prod Commun 2011; 6:925-930. [PMID: 21834225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
Dimethyldioxirane (DMDO), a widely used oxidant in organic synthesis is considered an environmentally friendly oxygen transfer reagent because acetone is the only byproduct formed in its oxidation reactions. This work describes the isolation of the main constituents (terpenes) in the essential oils obtained from Tagetes lucida, Cymbopogon citratus, Lippia alba and Eucalyptus citriodora, their epoxidation with DMDO in acetone solution and the characterization of the resulting epoxides by GC-MS (EI) and NMR. This is one of the first reports involving the application of dioxirane chemistry to essential oils in order to generate modified compounds with potential uses in several areas of medicine and industry.
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Affiliation(s)
- Luz A Veloza
- Laboratorio de Fitoquímica, Escuela de Química, Universidad Tecnológica de Pereira, A.A. 097, Vereda La Julita Pereira, Risaralda - Colombia.
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17
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Veloza LA, Orozco LM, Sepúlveda-Arias JC. Use of Dimethyldioxirane in the Epoxidation of the Main Constituents of the Essential Oils Obtained from Tagetes Lucida, Cymbopogon Citratus, Lippia Alba and Eucalyptus citriodora. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dimethyldioxirane (DMDO), a widely used oxidant in organic synthesis is considered an environmentally friendly oxygen transfer reagent because acetone is the only byproduct formed in its oxidation reactions. This work describes the isolation of the main constituents (terpenes) in the essential oils obtained from Tagetes lucida, Cymbopogon citratus, Lippia alba and Eucalyptus citriodora, their epoxidation with DMDO in acetone solution and the characterization of the resulting epoxides by GC-MS (EI) and NMR. This is one of the first reports involving the application of dioxirane chemistry to essential oils in order to generate modified compounds with potential uses in several areas of medicine and industry.
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Affiliation(s)
- Luz A. Veloza
- Laboratorio de Fitoquímica, Escuela de Química, Universidad Tecnológica de Pereira, A.A. 097, Vereda La Julita Pereira, Risaralda – Colombia
| | - Lina M. Orozco
- Laboratorio de Fitoquímica, Escuela de Química, Universidad Tecnológica de Pereira, A.A. 097, Vereda La Julita Pereira, Risaralda – Colombia
| | - Juan C. Sepúlveda-Arias
- Laboratorio de Fisiología Celular e Inmunología, Facultad de Ciencias de la Salud, Universidad Tecnológica de Pereira, A.A. 097, Vereda La Julita, Pereira, Risaralda – Colombia
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