1
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Barrera-Avalos C, Mena J, Luraschi R, Rojas P, Mateluna-Flores C, Vallejos-Vidal E, Imarai M, Sandino AM, Valdés D, Vera R, Hernández I, Reyes-López FE, Acuña-Castillo C. Sensitivity analysis of rapid antigen tests for the Omicron SARS-CoV-2 variant detection from nasopharyngeal swab samples collected in Santiago of Chile. Front Public Health 2022; 10:976875. [PMID: 36339133 PMCID: PMC9631301 DOI: 10.3389/fpubh.2022.976875] [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: 06/23/2022] [Accepted: 09/20/2022] [Indexed: 01/25/2023] Open
Abstract
The COVID-19 pandemic continues to be a concern and keeps global health authorities on alert. The RT-PCR technique has been the gold-standard assay for detecting the SARS-CoV-2 virus. However, rapid antigen tests (RATs) have been widely used to increase the number of tests faster and more efficiently in the population. Nevertheless, the appearance of new viral variants, with genomic mutations associated with greater contagiousness and immune evasion, highlights the need to evaluate the sensitivity of these RATs. This report evaluates the sensitivity of SD Biosensor-Roche, Panbio™, and Clinitest® RATs widely used in Santiago de Chile in the detection of the Omicron variant from Nasopharyngeal samples (NPSs), the most predominant SARS-CoV-2 variant in Chile and the world. SD Biosensor-Roche shows a detection sensitivity of 95.7% in the viral amplification range of 20 ≤ Cq < 25, while Panbio™ and Clinitest® show 100% and 91.3%, respectively. In the viral amplification ranges of 25 ≤ Cq < 30, the detection sensitivity decreased to 28% for SD Biosensor-Roche, 32% for Panbio™, and 72% for Clinitest®. This study indicates that the tested RATs have high sensitivity in detecting the Omicron variant of concern (VOC) at high viral loads. By contrast, its sensitivity decreases at low viral loads. Therefore, it is suggested to limit the use of RATs as an active search method, considering that infections in patients are increasingly associated with lower viral loads of SARS-CoV-2. These antecedents could prevent contagion outbreaks and reduce the underestimation of the current Omicron variant circulation at the local level.
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Affiliation(s)
- Carlos Barrera-Avalos
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Javier Mena
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Roberto Luraschi
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Patricio Rojas
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Carlos Mateluna-Flores
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Eva Vallejos-Vidal
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Mónica Imarai
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile,Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Ana María Sandino
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile,Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Daniel Valdés
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile,Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Rodrigo Vera
- Hospital de Urgencia Asistencia Pública (HUAP), Santiago, Chile
| | - Iván Hernández
- Hospital de Urgencia Asistencia Pública (HUAP), Santiago, Chile
| | - Felipe E. Reyes-López
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile,*Correspondence: Felipe E. Reyes-López
| | - Claudio Acuña-Castillo
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile,Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile,Claudio Acuña-Castillo
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2
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Eichhoff O, Stoffel C, Briker L, Turko P, Karsai G, Paulitschke V, Zamboni N, Balazs Z, Tastanova A, Wegmann R, Mena J, Viswanathan V, TuPro C, Krauthammer M, Schreiber S, Hornemann T, Distel M, Snijder B, Dummer R, Levesque M. ROS induction as a strategy to target persister cancer cell metabolism. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00815-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Barrera-Avalos C, Luraschi R, Vallejos-Vidal E, Figueroa M, Arenillas E, Barría D, Hernández F, Mateluna C, Mena J, Rioseco C, Torrent C, Vergara C, Gutiérrez G, Quiroz J, Alarcón J, Cartagena J, Cayunao J, Mella-Torres A, Santibañez Á, Tapia S, Undurraga A, Vargas D, Wong V, Inostroza-Molina A, Valdés D, Imarai M, Acuña-Castillo C, Reyes-López FE, Sandino AM. Analysis by real-time PCR of five transport and conservation mediums of nasopharyngeal swab samples to COVID-19 diagnosis in Santiago of Chile. J Med Virol 2021; 94:1167-1174. [PMID: 34755352 PMCID: PMC8662110 DOI: 10.1002/jmv.27446] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/02/2021] [Accepted: 11/08/2021] [Indexed: 12/23/2022]
Abstract
Due to the COVID-19 pandemic, many transport kits have been manufactured to preserve and transport nasopharyngeal swab samples (NPSs) from patients. However, there is no information on the performance of the different virus transport media (VTM) used in COVID-19 diagnosis in the population of Santiago de Chile. We compared the RT-qPCR amplification profile of five different viral transport kit mediums, including DNA/RNA Shield™, NAT, VTM-N, Ezmedlab™, and phosphate-buffered saline (PBS), for NPSs from Central Metropolitan Health Service, Santiago, Chile. The DNA/RNA Shield™ medium showed a better performance in terms of Cq and RFU values for the internal reference RNase P and viral ORF1ab probes. By contrast, the PBS transport medium registered higher Cq values for the viral and reference gene, compared to the other VTM. DNA/RNA Shield™ shows higher relative fluorescence units (RFUs) and lower Cq values for the reference gene. Collectively, our results suggest that the PBS medium could compromise the sample diagnosis because of its lower RT-qPCR performance. The NAT, Ezmedlab and VTM-N, and DNA/RNA Shield™ media show acceptable RT-qPCR parameters and, consequently, seem suitable for use in COVID-19 diagnosis.
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Affiliation(s)
- Carlos Barrera-Avalos
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Roberto Luraschi
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Eva Vallejos-Vidal
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Centro de Nanociencia y Nanotecnología CEDENNA, Universidad de Santiago de Chile, Santiago, Chile
| | - Maximiliano Figueroa
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Esteban Arenillas
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Daniela Barría
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe Hernández
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Carlos Mateluna
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Javier Mena
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Claudia Rioseco
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Claudia Torrent
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Claudio Vergara
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Gaby Gutiérrez
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Javiera Quiroz
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Javiera Alarcón
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Julio Cartagena
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Javiera Cayunao
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Andrea Mella-Torres
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Álvaro Santibañez
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Sebastián Tapia
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Alejandro Undurraga
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Deborah Vargas
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Valentina Wong
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Ailen Inostroza-Molina
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Daniel Valdés
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Mónica Imarai
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Claudio Acuña-Castillo
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Felipe E Reyes-López
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Spain.,Facultad de Medicina Veterinaria y Agronomía, Universidad de Las Américas, Santiago, Chile
| | - Ana M Sandino
- Centro de Biotecnología Acuícola, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
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4
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Mena J, Elgueta E, Espinola-Gonzales F, Cardenas H, Orihuela PA. Hydroethanolic Extracts of the Aristotelia Chilensis (Maqui) Berry Reduces Cellular Viability and Invasiveness in the Endometrial Cancer Cell Line Ishikawa. Integr Cancer Ther 2021; 20:15347354211007560. [PMID: 33926283 PMCID: PMC8113921 DOI: 10.1177/15347354211007560] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cancer of the reproductive tract includes diseases with higher prevalence in the female population. This investigation examined whether an anthocyanin-enriched extract of Aristotelia chilensis, commonly known as "maqui," could affect some hallmarks of endometrial cancer. Cultures of the human endometrial cancer cell line Ishikawa were treated with a hydroethanolic maqui extract at 1, 3, 10, 30, 100, 300, or 1000 µg/mL to determine the effect on cell viability by MTT assay. Then, we used the 50% Effective Concentration (EC50) to evaluate whether the effect of the maqui extract is mediated via an arrest of the cell cycle or induction of apoptosis using flow cytometry or Annexin V-FITC assays, respectively. The effects of sublethal doses of the maqui extract on migration and invasiveness of Ishikawa cells were also evaluated by the wound healing and Boyden Chamber assay, respectively. Our results show that the hydroethanolic maqui extract inhibits the cell viability with an EC50 of 472.3 µg/mL via increased apoptosis, and that reduces the invasive capacity but not migration of Ishikawa cells. These findings suggest that the hydroethanolic maqui extract has antineoplastic properties for endometrial cancer and merits further studies to corroborate its efficiency as anticancer therapy in reproductive organs.
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Affiliation(s)
- Javier Mena
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Estefanía Elgueta
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Francisca Espinola-Gonzales
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Hugo Cardenas
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Pedro A Orihuela
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Centro para el Desarrollo de la Ciencia y la Nanotecnología-CEDENNA, Santiago-Chile
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5
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Elgueta E, Mena J, Orihuela PA. Hydroethanolic Extracts of Haplopappus baylahuen Remy and Aloysia citriodora Palau Have Bactericide Activity and Inhibit the Ability of Salmonella Enteritidis to Form Biofilm and Adhere to Human Intestinal Cells. Biomed Res Int 2021; 2021:3491831. [PMID: 33575326 PMCID: PMC7857884 DOI: 10.1155/2021/3491831] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 01/12/2021] [Accepted: 01/15/2021] [Indexed: 01/15/2023]
Abstract
We analysed whether the hydroethanolic extracts from leaves of Haplopappus baylahuen Remy (bailahuen) and Aloysia citriodora Palau (cedron) inhibit the growth and ability of Salmonella Enteritidis to form biofilms and to adhere to human intestinal epithelial cells. Herein, we first determined the total phenolic content and antioxidant and antibacterial activities of the extracts. Then, Salmonella Enteritidis was treated with the extracts to analyse biofilm formation by scanning electronic microscopy and the violet crystal test. We also measured the efflux pump activity of Salmonella Enteritidis since biofilm formation is associated with this phenomenon. Furthermore, the human intestinal cell line Caco-2 was infected with Salmonella Enteritidis pretreated with the extracts, and 30 min later, the number of bacteria that adhered to the cell surface was quantified. Finally, we determined by qPCR the expression of genes associated with biofilm formation, namely, the diguanilate cyclase AdrA protein gene (adrA) and the BapA protein gene (bapA), and genes associated with adhesion, namely, the transcriptional regulator HilA (hilA). The phenolic content and antioxidant and bactericide activities were higher in bailahuen than in the cedron extract. Biofilm formation was inhibited by the extracts in a dose-dependent manner, while the activity of efflux pumps was decreased only with the cedron extract. Adhesion to Caco-2 cells was also inhibited without differences between doses and extracts. The extracts decreased the expression of adrA; with the cedron extract being the most efficient. The expression of hilA is affected only with the cedron extract. We concluded that hydroethanolic extracts of bailahuen and cedron differentially inhibit the growth of Salmonella Enteritidis and affect its the ability to form biofilms and to adhere to human intestinal epithelial cells. These results highlight the presence of molecules in bailahuen and cedron with a high potential for the control of the Salmonella Enteritidis pathogenesis.
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Affiliation(s)
- Estefanía Elgueta
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Javier Mena
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Pedro A. Orihuela
- Laboratorio de Inmunología de la Reproducción, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Centro de Nanociencia y Nanotecnología, Universidad de Santiago de Chile, Santiago, Chile
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6
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Barrera-Avalos C, Mena J, López X, Cappelli C, Neira T, Imarai M, Fernández R, Robles-Planells C, Rojo LE, Milla LA, Leiva-Salcedo E, Escobar A, Acuña-Castillo C. Adenosine triphosphate, polymyxin B and B16 cell-derived immunization induce anticancer response. Immunotherapy 2021; 13:309-326. [PMID: 33397152 DOI: 10.2217/imt-2020-0209] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Aim: Whole dead tumor cells can be used as antigen source and the induction of protective immune response could be enhanced by damage-associated molecular patterns. Materials & methods: We generated whole dead tumor cells called B16-immunogenic cell bodies (ICBs) from B16 melanoma cells by nutrient starvation and evaluated the in vivo antitumor effect of B16-ICBs plus ATP and polymyxin B (PMB). Results: The subcutaneous immunization with B16-ICBs + PMB + ATP a 50% of tumor-free animals and induced a significant delay in tumor growth in a prophylactic approach. These results correlated with maturation of bone marrow-derived dendritic cells and activation of T CD8+ lymphocytes in vitro. Conclusion: Altogether, ICB + ATP + PMB is efficient in inducing the antitumor efficacy of the whole dead tumor cells vaccine.
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Affiliation(s)
- Carlos Barrera-Avalos
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile
| | - Javier Mena
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile
| | - Ximena López
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile
| | - Claudio Cappelli
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile.,Laboratorio de Patología Molecular, Instituto de Bioquimica y Microbiologia, Universidad Austral de Chile, Valdivia, Chile
| | - Tanya Neira
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile
| | - Mónica Imarai
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile
| | | | - Claudia Robles-Planells
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile
| | - Leonel E Rojo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile
| | - Luis A Milla
- Centro de Investigaciones Biomédicas y Aplicadas, Escuela de Medicina, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| | - Elías Leiva-Salcedo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile
| | - Alejandro Escobar
- Instituto de Investigación en Ciencias Odontológicas, Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - Claudio Acuña-Castillo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, USACH, Alameda 3363, Santiago, Chile
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Agüero B, Mena J, Berrios F, Tapia R, Salinas C, Dutta J, van Bakel H, Mor SK, Brito B, Medina RA, Neira V. First report of porcine respirovirus 1 in South America. Vet Microbiol 2020; 246:108726. [PMID: 32605754 PMCID: PMC10898806 DOI: 10.1016/j.vetmic.2020.108726] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 03/01/2020] [Revised: 05/05/2020] [Accepted: 05/13/2020] [Indexed: 10/24/2022]
Abstract
Porcine respirovirus 1 (PRV1) is an emerging virus in pigs that has been previously described in the USA and China. There are no reports of its presence in the rest of the world. The objective of this study was to determine the occurrence of PRV1 in Chile and to determine its phylogeny. Thus, we collected samples (oral fluids, nasal swabs, and lungs) from a swine influenza A virus (IAV) surveillance program, most of which belonged to pigs with respiratory disease. The samples were analyzed by RT-PCR, and the viral sequencing was obtained using RNA whole-genome sequencing approach. Maximum likelihood phylogeny was constructed with the available references. Thirty-one of 164 samples (18.9 %) were RT-PCR positive for PRV1: 62.5 % oral fluids, 19.0 % nasal swabs, and 8.6 % lungs. All 6 farms in this study had at least one positive sample, with 6-40 % of positive results per farm, which suggests that PRV1 is disseminated in Chilean swine farms. Twenty-one of 31 (677%) PRV1-positive samples were also positive for IAV, so the role of PRV1 as secondary pathogen in respiratory disease needs to be further evaluated. Near to complete genome of two PRV1s were obtained from two farms. The phylogenies, in general, showed low bootstrap support, except the concatenated genome and the L gene trees which showed clustering of the Chilean PRV1 with Asian sequences, suggesting a close genetic relationship. This is the first report of PRV1 in the Southern Hemisphere. Further studies are necessary to determine the genetic diversity of this virus in Chile.
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Affiliation(s)
- B Agüero
- Departamento de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
| | - J Mena
- Departamento de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
| | - F Berrios
- Departamento de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
| | - R Tapia
- Departamento de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
| | - C Salinas
- Departamento de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
| | - J Dutta
- Department of Genetics and Genomic Sciences, Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York City, NY, USA
| | - H van Bakel
- Department of Genetics and Genomic Sciences, Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York City, NY, USA
| | - S K Mor
- College of Veterinary Medicine, University of Minnesota, MN, USA
| | - B Brito
- The ithree institute, University of Technology Sydney, PO Box 123, Broadway, NSW 2077, Australia
| | - R A Medina
- Departamento de Enfermedades Infecciosas e Inmunología Pediátrica, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York City, NY, USA
| | - V Neira
- Departamento de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile.
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Robles-Planells C, Michelson SA, Mena J, Escrig D, Rojas JL, Sanchez-Guerrero G, Hernández R, Barrera-Avalos C, Rojo LE, Sauma D, Kalergis AM, Imarai M, Fernández R, Robles CA, Leiva-Salcedo E, Santander R, Escobar A, Acuña-Castillo C. Lithraea caustic (Litre) Extract Promotes an Antitumor Response Against B16 Melanoma. Front Pharmacol 2019; 10:1201. [PMID: 31695610 PMCID: PMC6817581 DOI: 10.3389/fphar.2019.01201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 12/27/2018] [Accepted: 09/17/2019] [Indexed: 11/17/2022] Open
Abstract
Melanoma immunotherapy, specifically the autotransplant of dendritic cells charged with tumors antigens, has shown promising results in clinical trials. The positive clinical effects of this therapy have been associated to increased Th17 response and delayed-type hypersensitivity (DTH) against to tumor antigens. Some synthetic compounds, such as diphenylcyclopropenone (DPCP), are capable of triggering a DTH response in cutaneous malignancies and also to induce clinically relevant effects against melanoma. In this work, we evaluated Litre extract (LExT), a standardized extract of a Chilean stinging plant, Lithraea caustic (Litre). As Litre plant is known to induce DTH, we used a murine B16 melanoma model to compare the topical and intratumor efficacy of LExT with synthetic DTH inducers (DPCP and 2,4-dinitrochlorobenzene [DNCB]). LExt contained mainly long chain catechols and sesquiterpenes. The intratumor injection of LExT induced a significant delay in tumor growth, similarly topical treatment of an established tumor with 0.1% LExT ointment induced a growth delay and even tumor regression in 15% of treated animals. No significant changes were observed on the T-cell populations associated to LExT treatment, and neither DNCB nor DPCP were capable to induce none of the LExT-induced antitumoral effects. Interestingly, our results indicate that LExT induces an antitumor response against melanoma in a mouse model and could bring a new –and affordable- treatment for melanoma in humans.
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Affiliation(s)
- Claudia Robles-Planells
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, Santiago, Chile
| | - Sofia A Michelson
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Javier Mena
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Daniela Escrig
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Juan L Rojas
- Escuela de Medicina, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| | - Giselle Sanchez-Guerrero
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Ronny Hernández
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Carlos Barrera-Avalos
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, Santiago, Chile
| | - Leonel E Rojo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, Santiago, Chile
| | - Daniela Sauma
- Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute Immunology and Immunotherapy, FOCIS Center of Excellence, Facultad de Ciencias Biológicas, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mónica Imarai
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, Santiago, Chile
| | | | - Carolina A Robles
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Elías Leiva-Salcedo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Rocio Santander
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Alejandro Escobar
- Laboratorio Biología Celular y Molecular, Instituto de Investigación en Ciencias Odontológicas, Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - Claudio Acuña-Castillo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.,Centro de Biotecnología Acuícola, Universidad de Santiago de Chile, Santiago, Chile
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Launois P, Khoudeir A, Pujol V, García N, Fargas J, Mena J, Gines A, Espinel E, Gómez-Garrido A. Does Nordic walking helps to improve exercise capacity and weight control in patients with resistant hypertension? Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Rivas J, Neira V, Mena J, Brito B, Garcia A, Gutierrez C, Sandoval D, Ortega R. Identification of a divergent genotype of equine arteritis virus from South American donkeys. Transbound Emerg Dis 2017; 64:1655-1660. [PMID: 28921885 DOI: 10.1111/tbed.12703] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Indexed: 11/28/2022]
Abstract
A novel equine arteritis virus (EAV) was isolated and sequenced from feral donkeys in Chile. Phylogenetic analysis indicates that the new virus and South African asinine strains diverged at least 100 years from equine EAV strains. The results indicate that asinine strains belonged to a different EAV genotype.
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Affiliation(s)
- J Rivas
- Facultad de Ciencias Veterinarias, Departamento de patología y medicina preventiva, Universidad de Concepción, Chillán, Chile
| | - V Neira
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
| | - J Mena
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
| | - B Brito
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago, Chile
| | - A Garcia
- Laboratorio y Estación Cuarentenaria Pecuaria, Complejo Lo Aguirre, Servicio Agrícola y Ganadero, Santiago, Chile
| | - C Gutierrez
- Laboratorio y Estación Cuarentenaria Pecuaria, Complejo Lo Aguirre, Servicio Agrícola y Ganadero, Santiago, Chile
| | - D Sandoval
- Facultad de Ciencias Veterinarias, Departamento de patología y medicina preventiva, Universidad de Concepción, Chillán, Chile
| | - R Ortega
- Facultad de Ciencias Veterinarias, Departamento de patología y medicina preventiva, Universidad de Concepción, Chillán, Chile
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Langergraber G, Giraldi D, Mena J, Meyer D, Peña M, Toscano A, Brovelli A, Korkusuz EA. Recent developments in numerical modelling of subsurface flow constructed wetlands. Sci Total Environ 2009; 407:3931-3943. [PMID: 18778848 DOI: 10.1016/j.scitotenv.2008.07.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2008] [Revised: 07/21/2008] [Accepted: 07/30/2008] [Indexed: 05/26/2023]
Abstract
Numerical modelling of subsurface flow constructed wetlands (CWs) gained increasing interest during the last years. The main objective of the modelling work is, on the one hand, to increase the insight in dynamics and functioning of the complex CW system by using mechanistic or process based models that describe transformation and degradation processes in detail. As these mechanistic models are complex and therefore rather difficult to use there is, on the other hand, a need for simplified models for CW design. The design models should be premium to the currently used design guidelines that are mainly based on rules of thumb or simple first-order decay models. This paper presents an overview of the current developments on modelling of subsurface flow CWs based on the modelling work and model developments presented at the WETPOL 2007 symposium. Three kinds of models have been presented: simple transport and first-order decay models, complex mechanistic models, and a simplified model that has been developed for design of CWs. The models are presented and selected results are shown and discussed in relation to the available literature.
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Affiliation(s)
- Günter Langergraber
- Institute of Sanitary Engineering and Water Pollution Control, University of Natural Resources and Applied Life Sciences, Vienna (BOKU), Muthgasse 18, Vienna, Austria.
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Langergraber G, Rousseau DPL, García J, Mena J. CWM1: a general model to describe biokinetic processes in subsurface flow constructed wetlands. Water Sci Technol 2009; 59:1687-1697. [PMID: 19448302 DOI: 10.2166/wst.2009.131] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This paper presents the Constructed Wetland Model No1 (CWM1), a general model to describe biochemical transformation and degradation processes for organic matter, nitrogen and sulphur in subsurface flow constructed wetlands. The main objective of CWM1 is to predict effluent concentrations from constructed wetlands without predicting gaseous emissions. CWM1 describes aerobic, anoxic and anaerobic processes and is therefore applicable to both horizontal and vertical flow systems. 17 processes and 16 components (8 soluble and 8 particulate) are considered. CWM1 is based on the mathematical formulation as introduced by the IWA Activated Sludge Models (ASMs). It is important to note that besides the biokinetic model a number of other processes including porous media hydrodynamics, the influence of plants, the transport of particles/suspended matter to describe clogging processes, adsorption and desorption processes and physical re-aeration must be considered for the formulation of a full model for constructed wetlands.
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Affiliation(s)
- Guenter Langergraber
- Institute for Sanitary Engineering and Water Pollution Control, University of Natural Resources and Applied Life Sciences, Vienna (BOKU), Muthgasse 18, A-1190 Vienna, Austria.
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Sánchez-Morla EM, García-Jiménez MA, Barabash A, Martínez-Vizcaíno V, Mena J, Cabranes-Díaz JA, Baca-Baldomero E, Santos JL. P50 sensory gating deficit is a common marker of vulnerability to bipolar disorder and schizophrenia. Acta Psychiatr Scand 2008; 117:313-8. [PMID: 18241306 DOI: 10.1111/j.1600-0447.2007.01141.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE P50 gating in schizophrenia has contributed much to our understanding of the pathophysiology of the illness. We examined euthymic bipolar patients to determine if they also have a P50 gating deficit. METHOD P50 gating was measured in 81 euthymic bipolar patients (50 with a lifetime history of psychotic symptoms), 92 stable schizophrenic patients, and 67 control subjects. RESULTS P50 gating was significantly lower in control subjects than in bipolar patients with a lifetime history of psychosis (P = 0.001) and schizophrenic patients (P = 0.0001). In all patient groups, the percentage of patients with P50 gating was higher than in the control group (chi(2) = 30.596; P < 0.0001). There was no statistically significant correlation between P50 gating and other clinical variables. CONCLUSION Our data suggest that P50 gating deficit is a neurobiological marker that is present in stable schizophrenic patients and euthymic bipolar patients.
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Affiliation(s)
- E M Sánchez-Morla
- Department of Psychiatry, Hospital General Universitario de Guadalajara, Guadalajara, Spain.
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Abstract
A genomic subtraction method, the representational difference analysis (RDA), was tested for its use in identifying strain-specific DNA in Actinobacillus actinomycetemcomitans. Subtraction of strain D7S with strain HK1651 yielded D7S-specific 2.3-kilobase (kb) islet-A and 5.3-kb islet-B. Islet-A contains a 1.5-kb region that is homologous to a region found in the A. actinomycetemcomitans plasmid pVT745. Islet-B contains a 2.1-kb homolog of vgr, a component of a DNA repeat element rhs. The distribution of these islets among A. actinomycetemcomitans strains was further examined by polymerase chain reaction. Islet-A was found in nine serotype a and two serotype b strains but was missing from 34 strains. Islet-B was found in one serotype a strain, four serotype d strains and two serotype e strains, but was missing from 34 strains.
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Affiliation(s)
- J Mena
- Division of Primary Oral Health Care, School of Dentistry, University of Southern California, Los Angeles, CA 90089, USA
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Spaner DE, Shi Y, White D, Mena J, Hammond C, Tomic J, He L, Tomai MA, Miller RL, Booth J, Radvanyi L. Immunomodulatory effects of Toll-like receptor-7 activation on chronic lymphocytic leukemia cells. Leukemia 2005; 20:286-95. [PMID: 16341037 DOI: 10.1038/sj.leu.2404061] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Weak immunogenicity of chronic lymphocytic leukemia (CLL) cells may contribute to disease progression and inhibit effective immunotherapy. Accordingly, agents that enhance the immunogenicity of CLL cells may be useful in immunotherapeutic approaches to this disease. Since Toll-like receptors (TLRs) are major regulators of innate immunity and initiation of adaptive immunity, we studied the effects of viral pathogen associated molecular pattern agonists (that are recognized by TLRs) on the costimulatory phenotype and function of CLL cells. CLL cells (especially those with high endogenous expression of CD38) responded to TLR7-activating imidazoquinolines and guanosine analogs by increasing costimulatory molecule expression, producing inflammatory cytokines, and becoming more sensitive to killing by cytotoxic effectors. Additional activation of protein kinase C pathways increased the ability to stimulate T-cell proliferation, blocked phosphorylation of the transcription factor, signal transducer and activator of transcription (STAT)3, and resulted in the acquisition of a dendritic cell surface phenotype by TLR7-activated CLL cells. Normal B cells also responded to TLR7 activation by increasing costimulatory molecule expression and cytokine production. These findings suggest a potential role for TLR7 agonists in CLL immunotherapy.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- B-Lymphocytes/drug effects
- B-Lymphocytes/metabolism
- Chemokines/biosynthesis
- Cytokines/biosynthesis
- Female
- Humans
- Imidazoles/pharmacology
- Immunologic Factors/pharmacology
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Male
- Middle Aged
- Phorbol Esters/pharmacology
- Quinolines/pharmacology
- STAT3 Transcription Factor/drug effects
- STAT3 Transcription Factor/metabolism
- Sensitivity and Specificity
- Toll-Like Receptor 7/drug effects
- Toll-Like Receptor 7/metabolism
- Tumor Cells, Cultured
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Affiliation(s)
- D E Spaner
- Division of Molecular and Cellular Biology, Research Institute, Sunnybrook and Women's College Health Sciences Center, Toronto, Canada.
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Mena J, Wilke D. 307 Fully-automatic treatment planning for prostate conformal radiotherapy. Radiother Oncol 2005. [DOI: 10.1016/s0167-8140(05)81283-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Flores-Suárez LF, Mena J. PP10. CHARACTERISTICS OF GIANT CELL ARTERITIS IN LATIN AMERICAN PATIENTS. Rheumatology (Oxford) 2005. [DOI: 10.1093/rheumatology/keh763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Mena J, Cóndor L. Higroma quístico. Clínica e Investigación en Ginecología y Obstetricia 2004. [DOI: 10.1016/s0210-573x(04)77314-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mena J, López-Hidalgo M, Gordillo R, Rodríguez A, Cóndor L. Embarazo ectópico tubárico tras programa FIV embarazo ectópico abdominal. Clínica e Investigación en Ginecología y Obstetricia 2004. [DOI: 10.1016/s0210-573x(04)77354-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Becerra J, Flores C, Mena J, Aqueveque P, Alarcón J, Bittner M, Hernández V, Hoeneisen M, Ruiz E, Silva M. ANTIFUNGAL AND ANTIBACTERIAL ACTIVITY OF DITERPENES ISOLATED FROM WOOD EXTRACTABLES OF CHILEAN PODOCARPACEAE. ACTA ACUST UNITED AC 2002. [DOI: 10.4067/s0366-16442002000200011] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mena J, López A, Romero M, Parra J. Hipertiroidismo gestacional. A propósito de un caso. Semergen 2001. [DOI: 10.1016/s1138-3593(01)73977-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Martínez-Alvarez C, Bonelli R, Tudela C, Gato A, Mena J, O'Kane S, Ferguson MW. Bulging medial edge epithelial cells and palatal fusion. Int J Dev Biol 2000; 44:331-5. [PMID: 10853831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The surface of the medial edge epithelium of embryonic day 12, 13 and 14 mouse palatal shelves was observed utilising Environmental Scanning Electron Microscopy (ESEM). This technique offers the advantage of visualisation of biological samples after short fixation times in their natural hydrated state. Bulging epithelial cells were observed consistently on the medial edge epithelium prior to palatal shelf fusion. Additionally, we have used ESEM to compare the morphology and surface features of palatal shelves from embryonic day 13 to 16 mouse embryos that are homozygous null (TGF-beta3 -/-), heterozygous (TGF-beta3 +/-) or homozygous normal (TGF-beta3 +/+) for transforming growth factor beta-3 (TGF-beta3). At embryonic day 15 and 16 most TGF-beta3 +/- and +/+ embryos showed total palatal fusion, whilst all TGF-beta3 null mutants had cleft palate: the middle third of the palatal shelves had adhered, leaving an anterior and posterior cleft. From embryonic day 14 to 16 abundant cells were observed bulging on the medial edge epithelial surface of palates from the TGF-beta3 +/- and +/+ embryos. However, they were never seen in the TGF-beta3 null embryos, suggesting that these surface bulges might be important in palatal fusion and that their normal differentiation is induced by TGF-beta3. The expression pattern of E-Cadherin, beta-catenin, chondroitin sulphate proteoglycan, beta-Actin and vinculin as assayed by immunocytochemistry in these cells shows specific variations that suggest their importance in palatal shelf adhesion.
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Affiliation(s)
- C Martínez-Alvarez
- Departamento de Ciencias Morfológicas I, Facultad de Medicina, Universidad Complutense de Madrid, Spain.
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Mena J, Bowen JC, Hollier LH. Metachronous bilateral nonfunctional intercarotid paraganglioma (carotid body tumor) and functional retroperitoneal paraganglioma: report of a case and review of the literature. Surgery 1993; 114:107-11. [PMID: 8356513] [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: 01/30/2023]
Abstract
BACKGROUND The occurrence of an intercarotid paraganglioma and a paraganglioma in an anatomic distribution away from the head and neck in the same patient is rare. We have treated a patient with this combination of tumors and report this unusual case with the purpose of reviewing the paraganglion system. We endeavor to clarify the confusion that exists by use of the terms chemodectoma, glomus tumors, nonchromaffin paragangliomas, and pheochromocytoma and to present a rational nomenclature based on their ontogeny. METHODS A computer-generated list of articles on this subject was obtained, and all articles relative to this rare combination of tumors were reviewed. RESULTS We found 31 other cases. Functional intercarotid paragangliomas are extremely rare, with only five cases having been reported. CONCLUSIONS All hypertensive patients who are found to have an intercarotid paraganglioma should be investigated for a functional tumor. Family members should also be made aware of their probabilities of having these tumors because a familial trend has been documented in certain cases.
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Affiliation(s)
- J Mena
- Department of Surgery, Ochsner Clinic, New Orleans, La. 70121
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Lumaret JP, Galante E, Lumbreras C, Mena J, Bertrand M, Bernal JL, Cooper JF, Kadiri N, Crowe D. Field Effects of Ivermectin Residues on Dung Beetles. J Appl Ecol 1993. [DOI: 10.2307/2404183] [Citation(s) in RCA: 106] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Mena J, Galante E, Lumbreras CJ. Daily flight activity of Scarabaeidae and Geotrupidae (Col.) and analysis of the factors determining this activity. ACTA ACUST UNITED AC 1989. [DOI: 10.3406/ecmed.1989.1635] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Gonzalez-Fernandez E, Mena J, Diaz-Gonzalez M, Martinez-Gil de Arana JM. A long-term survey of environmental, blood and urine mercury levels and clinical findings in workers manufacturing mercury relays. Ind Health 1984; 22:97-106. [PMID: 6480424 DOI: 10.2486/indhealth.22.97] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Mena J, Traina M, Cristiano E, Romano FJ. [Exercise test in post-myocardial infarct patients]. Prensa Med Argent 1970; 57:1576-1579. [PMID: 5532262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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