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Sánchez S, Baragaño D, Gallego JR, López-Antón MA, Forján R, González A. Valorization of steelmaking slag and coal fly ash as amendments in combination with Betula pubescens for the remediation of a highly As- and Hg-polluted mining soil. Sci Total Environ 2024; 927:172297. [PMID: 38588736 DOI: 10.1016/j.scitotenv.2024.172297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/23/2024] [Accepted: 04/05/2024] [Indexed: 04/10/2024]
Abstract
Soil pollution by As and Hg is a pressing environmental issue given their persistence. The intricate removal processes and subsequent accumulation of these elements in soil adversely impact plant growth and pose risks to other organisms in the food chain and to underground aquifers. Here we assessed the effectiveness of non-toxic industrial byproducts, namely coal fly ash and steelmaking slag, as soil amendments, both independently and in conjunction with an organic fertilizer. This approach was coupled with a phytoremediation technique involving Betula pubescens to tackle soil highly contaminated. Greenhouse experiments were conducted to evaluate amendments' impact on the growth, physiology, and biochemistry of the plant. Additionally, a permeable barrier made of byproducts was placed beneath the soil to treat leachates. The application of the byproducts reduced pollutant availability, the production of contaminated leachates, and pollutant accumulation in plants, thereby promoting plant development and survival. Conversely, the addition of the fertilizer alone led to an increase in As accumulation in plants and induced the production of antioxidant compounds such as carotenoids and free proline. Notably, all amendments led to increased thiolic compound production without affecting chlorophyll synthesis. While fertilizer application significantly decreased parameters associated with oxidative stress, such as hydrogen peroxide and malondialdehyde, no substantial reduction was observed after byproduct application. Thermal desorption analysis of the byproducts revealed Hg immobilization mechanisms, thereby indicating retention of this metalloid in the form of Hg chloride. In summary, the revalorization of industrial byproducts in the context of the circular economy holds promise for effectively immobilizing metal(loid)s in heavily polluted soils. Additionally, this approach can be enhanced through synergies with phytoremediation.
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Affiliation(s)
- S Sánchez
- Department of Organisms and Systems Biology, Area of Plant Physiology IUBA, University of Oviedo, Catedrático Rodrigo Uría s/n, 33006 Oviedo, Asturias, Spain; Environmental Biogeochemistry and Raw Materials Group, University of Oviedo, Campus de Mieres, Gonzalo Gutiérrez Quirós s/n, 33600 Mieres, Asturias, Spain
| | - D Baragaño
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe, 26, 33011 Oviedo, Spain.
| | - J R Gallego
- Environmental Biogeochemistry and Raw Materials Group, University of Oviedo, Campus de Mieres, Gonzalo Gutiérrez Quirós s/n, 33600 Mieres, Asturias, Spain
| | - M A López-Antón
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe, 26, 33011 Oviedo, Spain
| | - R Forján
- Environmental Biogeochemistry and Raw Materials Group, University of Oviedo, Campus de Mieres, Gonzalo Gutiérrez Quirós s/n, 33600 Mieres, Asturias, Spain; Plant Production Area, Department of Biology of Organisms and Systems Biology, University of Oviedo, 33600 Mieres, Spain
| | - A González
- Department of Organisms and Systems Biology, Area of Plant Physiology IUBA, University of Oviedo, Catedrático Rodrigo Uría s/n, 33006 Oviedo, Asturias, Spain
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Brizuela AM, Gálvez L, Arroyo JM, Sánchez S, Palmero D. Evaluation of Trichoderma spp. on Fusarium oxysporum f. sp. asparagi and Fusarium wilt Control in Asparagus Crop. Plants (Basel) 2023; 12:2846. [PMID: 37571000 PMCID: PMC10421153 DOI: 10.3390/plants12152846] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023]
Abstract
Among the key diseases affecting the asparagus crop (Asparagus officinalis L.), vascular wilting of asparagus caused by Fusarium oxysporum f. sp. asparagi stands out worldwide. This disease significantly shortens the longevity of the crop and limits economic production. Traditional control measures have been largely ineffective, and chemical control methods are difficult to apply, making biological control approaches, specifically the use of Trichoderma, an economical, effective, and risk-free alternative. This study aimed to identify the main factors that affect the efficacy of biopesticides studied as Biological Control Agents (BCAs) against Fusarium wilt in asparagus and to assess the efficacy of Trichoderma-based biopesticides under greenhouse and semi-field conditions. We evaluated the response of three Trichoderma spp. (T. atroviride, T. asperellum, and T. saturnisporum) to environmental variables, such as temperature and water activity, and their antagonistic capacity against Fusarium oxysporum f. sp. asparagi. All three Trichoderma species inhibited the growth of the pathogen in vitro. A decrease in water activity led to a greater reduction in the growth rate. The efficacy of the three biological control agents decreased with higher temperatures, resulting in minimal inhibition, particularly under conditions of restricted available water in the environment. The effect of the fungal inoculum density was also analyzed at two different temperatures. A direct correlation between the amount of inoculum and the score on the Disease Severity Index (DSI) was observed. A notable reduction in DSI was evident in treatments with high inoculum density (106 conidium/mL) for all three species of Trichoderma tested at both temperatures. In greenhouse and semi-field tests, we observed less disease control than expected, although T. asperellum and T. atroviride showed lower disease severity indices and increased the dry weight of seedlings and crowns, whereas T. saturnisporum resulted in the highest disease rate and lowest dry weight. This work highlights that the efficacy of Trichoderma as BCAs is influenced by various factors, including the quantity of soil inocula, and environmental conditions. The study findings have strong implications for selecting appropriate Trichoderma species for controlling specific pathogens under specific environmental conditions.
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Affiliation(s)
| | | | | | | | - Daniel Palmero
- Department of Agricultural Production, Escuela Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040 Madrid, Spain; (A.M.B.); (L.G.)
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Palacios S, Nappi RE, Cancelo MJ, Sánchez S, Simoncini T. Expert opinion on the treatment of vulvovaginal atrophy with ospemifene based on new evidence. Climacteric 2023:1-4. [PMID: 37017751 DOI: 10.1080/13697137.2023.2190881] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2023]
Abstract
Vulvovaginal atrophy (VVA) is an underdiagnosed and undertreated chronic condition resulting in physiological and histological changes in the genitourinary tract of postmenopausal women. Treatment of moderate to severe VVA includes local estrogens, dehydroepiandrosterone (DHEA) and oral ospemifene, a third-generation selective estrogen receptor modulator (SERM). Due to venous thromboembolism (VTE) safety concerns classically associated with the SERM class, and as part of its original marketing authorization approval (MAA), the European Medicines Agency (EMA) requested the performance of a 5-year post-authorization safety study (PASS) to study the incidence rate of VTE among women receiving ospemifene. The results have led to important regulatory changes to ospemifene's labeling, extending its indication and eliminating concerted risk management measures. A panel of experts discussed and reached consensus on the impact of these regulatory changes on clinical practice, reflecting on the reassurance of ospemifene's benefit-risk balance and recommending its positioning as a first-line pharmacological treatment option for moderate to severe VVA together with local therapies. In a scenario where different treatments present similar efficacy and safety profiles, a shared decision between clinician and patient, according to her needs and preferences over time, is fundamental to improve adherence and persistence with sequential treatment, contributing to the achievement of health outcomes.
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Affiliation(s)
- S Palacios
- Palacios Institute of Women's Health and Medicine, Madrid, Spain
| | - R E Nappi
- Unit of Reproductive Medicine, Gynecological Endocrinology and Menopause, IRCCS S. Matteo Foundation, Pavia, Italy
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - M J Cancelo
- Gynecology and Obstetrics Department, Hospital Universitario de Guadalajara, University of Alcalá, Guadalajara, Spain
| | - S Sánchez
- Obstetrics and Gynecology Department, Hospital Universitari General de Catalunya, San Cugat, Spain
| | - T Simoncini
- Department of Clinical and Experimental Medicine, University of Pisa, Italy
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Baquedano L, Coronado P, De la Viuda E, Sánchez S, Otero B, Ramírez I, Llaneza P, Mendoza N. Population-based survey on menopausal symptoms and treatment use. Climacteric 2023; 26:47-54. [PMID: 36351874 DOI: 10.1080/13697137.2022.2139598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE This article aimed to study the use of menopausal hormone therapy (MHT) among Spanish perimenopausal and postmenopausal women, the presence of menopausal symptoms and the sources of information. METHODS The epidemiological study using a survey included Spanish perimenopausal or postmenopausal women aged between 40 and 70 years in August 2021. RESULTS A total of 1254 women were included. In the postmenopausal group, 86% reported one or more menopausal symptoms; the most frequent was vulvovaginal dryness (57%). Among the symptomatic women, 15.2% used some treatment. Vasomotor symptoms (p = 0.001), vulvovaginal atrophy (p < 0.001) and symptoms related to sexuality (p < 0.001) were associated with greater use of treatments; 2.5% of postmenopausal women used MHT. In the perimenopausal group, 75.1% were symptomatic, hot flashes being the most frequent. Only insomnia was related to greater use of some treatment (p = 0.021); 1.6% of perimenopausal women used MHT. The most common reason for women's rejection of MHT was the fear of side effects, especially cancer. The gynecologist was the most frequently used source of information. CONCLUSIONS Although there is a high prevalence of symptoms, the use of MHT in Spanish perimenopausal and postmenopausal women is very low.
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Affiliation(s)
- L Baquedano
- IIS Aragon, Hospital Universitario Miguel Servet, Zaragoza University, Madrid, Spain
| | - P Coronado
- Instituto de Salud de la Mujer, Hospital Clinico San Carlos, IdISSC, Complutense University, Madrid, Spain
| | - E De la Viuda
- Department of Obstetrics and Gynecology, Hospital Universitario de Guadalajara, Guadalajara, Spain.,Universidad de Alcalá de Henares, Madrid, Spain
| | - S Sánchez
- Department of Obstetrics and Gynecology, Quiron Salud Hospital Universitari General de Catalunya, Barcelona, Spain
| | - B Otero
- Department of Obstetrics and Gynecology, Hospital de Cruces, University of the Basque Country, Bilbao, Spain
| | - I Ramírez
- Salud Sexual y Reproductiva, Unidad de Gestión Clínica Cayetano Roldan, San Fernando, Cadiz, Spain
| | - P Llaneza
- Department of Obstetrics and Gynecology, Hospital Central de Asturias, Faculty of Medicine, Oviedo University, Spain
| | - N Mendoza
- Department of Obstetrics and Gynecology, Faculty of Medicine, Granada University, Spain
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Sánchez S, Juárez U, Domínguez J, Molina B, Barrientos R, Martínez-Hernández A, Carnevale A, Grether-González P, Mayen DG, Villarroel C, Lieberman E, Yokoyama E, Del Castillo V, Torres L, Frias S. Frequent copy number variants in a cohort of Mexican-Mestizo individuals. Mol Cytogenet 2023; 16:2. [PMID: 36631885 PMCID: PMC9835318 DOI: 10.1186/s13039-022-00631-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 12/13/2022] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND The human genome presents variation at distinct levels, copy number variants (CNVs) are DNA segments of variable lengths that range from several base pairs to megabases and are present at a variable number of copies in human genomes. Common CNVs have no apparent influence on the phenotype; however, some rare CNVs have been associated with phenotypic traits, depending on their size and gene content. CNVs are detected by microarrays of different densities and are generally visualized, and their frequencies analysed using the HapMap as default reference population. Nevertheless, this default reference is inadequate when the samples analysed are from people from Mexico, since population with a Hispanic genetic background are minimally represented. In this work, we describe the variation in the frequencies of four common CNVs in Mexican-Mestizo individuals. RESULTS In a cohort of 147 unrelated Mexican-Mestizo individuals, we found that the common CNVs 2p11.2 (99.6%), 8p11.22 (54.5%), 14q32.33 (100%), and 15q11.2 (71.1%) appeared with unexpectedly high frequencies when contrasted with the HapMap reference (ChAS). Yet, while when comparing to an ethnically related reference population, these differences were significantly reduced or even disappeared. CONCLUSION The findings in this work contribute to (1) a better description of the CNVs characteristics of the Mexican Mestizo population and enhance the knowledge of genome variation in different ethnic groups. (2) emphasize the importance of contrasting CNVs identified in studied individuals against a reference group that-as best as possible-share the same ethnicity while keeping this relevant information in mind when conducting CNV studies at the population or clinical level.
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Affiliation(s)
- Silvia Sánchez
- grid.419216.90000 0004 1773 4473Laboratorio de Citogenética, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C Insurgentes Cuicuilco, P01090 Ciudad de Mexico, México ,grid.9486.30000 0001 2159 0001Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Ulises Juárez
- grid.419216.90000 0004 1773 4473Laboratorio de Citogenética, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C Insurgentes Cuicuilco, P01090 Ciudad de Mexico, México
| | - Julieta Domínguez
- grid.419216.90000 0004 1773 4473Laboratorio de Citogenética, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C Insurgentes Cuicuilco, P01090 Ciudad de Mexico, México
| | - Bertha Molina
- grid.419216.90000 0004 1773 4473Laboratorio de Citogenética, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C Insurgentes Cuicuilco, P01090 Ciudad de Mexico, México
| | - Rehotbevely Barrientos
- grid.419216.90000 0004 1773 4473Laboratorio de Citogenética, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C Insurgentes Cuicuilco, P01090 Ciudad de Mexico, México
| | - Angélica Martínez-Hernández
- grid.452651.10000 0004 0627 7633Laboratorio de Inmunogenómica y Enfermedades Metabólicas, Instituto Nacional de Medicina Genómica, Ciudad de Mexico, México
| | - Alessandra Carnevale
- grid.452651.10000 0004 0627 7633Laboratorio de Enfermedades Mendelianas, Instituto Nacional de Medicina Genómica, Ciudad de Mexico, México
| | - Patricia Grether-González
- grid.419218.70000 0004 1773 5302Departamento de Genética y Genómica Humana, Instituto Nacional de Perinatología, Ciudad de Mexico, México ,grid.413678.fPresent Address: Centro Médico ABC, Campus Santa Fe, Ciudad de Mexico, México
| | - Dora Gilda Mayen
- Unidad de Genética Aplicada. Hospital Ángeles Lomas, Huixquilucan, Edo. de México México
| | - Camilo Villarroel
- grid.419216.90000 0004 1773 4473Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, México
| | - Esther Lieberman
- grid.419216.90000 0004 1773 4473Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, México
| | - Emiy Yokoyama
- grid.419216.90000 0004 1773 4473Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, México
| | - Victoria Del Castillo
- grid.419216.90000 0004 1773 4473Genética Humana, Instituto Nacional de Pediatría, Ciudad de Mexico, México
| | - Leda Torres
- grid.419216.90000 0004 1773 4473Laboratorio de Citogenética, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C Insurgentes Cuicuilco, P01090 Ciudad de Mexico, México
| | - Sara Frias
- grid.419216.90000 0004 1773 4473Laboratorio de Citogenética, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C Insurgentes Cuicuilco, P01090 Ciudad de Mexico, México ,grid.9486.30000 0001 2159 0001Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
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Niño-Ramírez S, Ardila O, Rodríguez FH, Londoño J, Pérez S, Sánchez S, Camargo J, Guevara-Casallas LG. Major adverse events related to endoscopic or laparoscopic procedures in achalasia. A systematic review and meta-analysis. Rev Gastroenterol Mex (Engl Ed) 2023; 88:36-43. [PMID: 34866041 DOI: 10.1016/j.rgmxen.2021.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 05/02/2021] [Indexed: 10/19/2022]
Abstract
INTRODUCTION AND AIMS Surgical or endoscopic treatments play an essential role in the management of achalasia. The probability of adverse events in the performance of said treatments is a relevant aspect, when establishing the risk-benefit balance. The present study aimed to establish the association between serious adverse events and the performance of those procedures, in adult patients with achalasia. MATERIALS AND METHODS A systemic search of randomized and nonrandomized clinical trials, retrospective cohorts, and cases series on adult patients with achalasia that underwent laparoscopic Heller myotomy (LHM), peroral endoscopic myotomy (POEM), or endoscopic balloon dilation, that reported serious adverse events, was carried out on the Medline, CENTRAL, and EBSCO databases. Serious adverse events were defined as: death at 30 days, Clavien-Dindo grade III or higher classification, esophageal or gastric perforation, pneumothorax, mucosal tear, leakage, emphysema, pneumonia, and chest pain. The methodology included the PRISMA guidelines for reporting systematic reviews. RESULTS Thirty-five studies were found that reported information on 1,276 patients that underwent POEM, 5,492 that underwent LHM, and 10,346 that underwent endoscopic balloon dilation. The proportions of adverse events for the three techniques were 3.6, 4.9, and 3.1%, respectively. DISCUSSION AND CONCLUSIONS The 3 therapeutic interventions evaluated had similar proportions of adverse events. There were few reports of death at 30 days as an outcome and the lack of standardization in reporting adverse events in the studies analyzed was prominent.
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Affiliation(s)
- S Niño-Ramírez
- Unidad de Gastroenterología, Clínica el Rosario, Medellín, Colombia.
| | - O Ardila
- Unidad de Gastroenterología, Clínica CES, Medellín, Colombia
| | - F H Rodríguez
- Unidad de Gastroenterología, Clínica CES, Medellín, Colombia
| | - J Londoño
- Facultad de Medicina, Universidad-Clínica CES, Medellín, Colombia
| | - S Pérez
- Facultad de Medicina, Universidad-Clínica CES, Medellín, Colombia
| | - S Sánchez
- Facultad de Medicina, Universidad-Clínica CES, Medellín, Colombia
| | - J Camargo
- Facultad de Medicina, Universidad-Clínica CES, Medellín, Colombia
| | - L G Guevara-Casallas
- Unidad de Gastroenterología, Clínica CES, Medellín, Colombia; Unidad de Gastroenterología, Clínica SOMER, Rionegro, Colombia
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Jimeno Fraile J, Anchuelo J, Sánchez M, Lopez S, Albendea J, Alonso A, Hermana S, Sánchez S, Ruiz-Rueda C, Nombela S, Hernanz F. Quality of life and lymphedema incidence after axillary surgery in pN1 breast cancer patients: lymphadenectomy vs. Sentinel lymph node biopsy. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01420-4] [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: 11/19/2022]
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Romero-Rodríguez A, Martínez de la Peña C, Troncoso-Cotal S, Guzmán C, Sánchez S. Emerging alternatives against Clostridioides difficile infection. Anaerobe 2022; 78:102638. [DOI: 10.1016/j.anaerobe.2022.102638] [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] [Received: 04/11/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 11/25/2022]
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Guillén D, Moreno-Mendieta S, Aguilera P, Sánchez S, Farres A, Rodríguez-Sanoja R. Correction to: The starch-binding domain as a tool for recombinant protein purification. Appl Microbiol Biotechnol 2021; 105:7551-7552. [PMID: 34536107 DOI: 10.1007/s00253-021-11575-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- D Guillén
- Departamento de Biología Molecular y BiotecnologíaInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México, Distrito Federal, 04510, México.,Programa de Posgrado en Ciencias Bioquímicas, Universidad Nacional Autónoma de México, México, Distrito Federal, 04510, México
| | - S Moreno-Mendieta
- Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, México, Distrito Federal, 04510, México
| | - P Aguilera
- Departamento de Biología Molecular y BiotecnologíaInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México, Distrito Federal, 04510, México
| | - S Sánchez
- Departamento de Biología Molecular y BiotecnologíaInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México, Distrito Federal, 04510, México
| | - A Farres
- Departamento de Alimentos y Biotecnología Facultad de Química, Universidad Nacional Autónoma de México, México, Distrito Federal, 04510, México
| | - R Rodríguez-Sanoja
- Departamento de Biología Molecular y BiotecnologíaInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México, Distrito Federal, 04510, México.
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Rodríguez-Serrano A, Carrión DM, Gómez Rivas J, Álvarez-Maestro M, Sánchez S, Rodríguez de Bethencourt F, Aguilera Bazán A, Martínez-Piñeiro L. Prognostic value of urinary cytology for detecting urothelial carcinoma recurrence after radical cystectomy. Actas Urol Esp 2021; 45:466-472. [PMID: 34148845 DOI: 10.1016/j.acuroe.2021.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 11/03/2020] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Urethral or upper urinary tract (UUT) recurrence of urothelial carcinoma (UC) after radical cystectomy (RC) are rare (4-6%), and their diagnosis usually occurs within the first two years. Although it is known that its early detection offers benefit in terms of survival, currently there are no clear recommendations for the detection of recurrence in the remnant urothelium (RU). Our aim is to determine the diagnostic value of urinary cytology for the detection of recurrences in the RU and to estimate its impact as an early diagnostic method on survival. MATERIAL AND METHODS Retrospective review of patients who underwent RC for urothelial carcinoma between 2008-2016, with a follow-up of at least 24 months. RESULTS The study included 142 patients. In a median follow-up of 68.5 months, nine patients (6.3%) presented recurrences in the RU (urethra: four, UUT: four, synchronous: one). The sensitivity and specificity of urinary cytology for the diagnosis of UUT recurrences were 20% and 96%, respectively. No significant differences were found between overall survival and cancer-specific survival among patients according to the urinary cytology results. CONCLUSION Recurrences in the RU after RC are infrequent; our study has shown that urinary cytology offers a low sensitivity for their diagnoses. For these reasons, we do not consider that urinary cytology provides useful information for surveillance of these patients.
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Affiliation(s)
- A Rodríguez-Serrano
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid, Madrid, Spain.
| | - D M Carrión
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid, Madrid, Spain
| | - J Gómez Rivas
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid, Madrid, Spain; Instituto de Investigación IdiPAZ, Hospital Universitario La Paz, Madrid, Spain
| | - M Álvarez-Maestro
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid, Madrid, Spain; Instituto de Investigación IdiPAZ, Hospital Universitario La Paz, Madrid, Spain
| | - S Sánchez
- Universidad Autónoma de Madrid, Madrid, Spain; Servicio de Traumatología, Hospital Universitario Puerta de Hierro-Majadahonda, Majadahonda, Madrid, Spain
| | - F Rodríguez de Bethencourt
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid, Madrid, Spain; Instituto de Investigación IdiPAZ, Hospital Universitario La Paz, Madrid, Spain
| | - A Aguilera Bazán
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid, Madrid, Spain; Instituto de Investigación IdiPAZ, Hospital Universitario La Paz, Madrid, Spain
| | - L Martínez-Piñeiro
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid, Madrid, Spain; Instituto de Investigación IdiPAZ, Hospital Universitario La Paz, Madrid, Spain
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Pous A, Izquierdo C, Cucurull M, Sánchez S, Lezcano C, Domenech M, Llobera L, Plaja A, Moran T. Immune-checkpoint inhibitors for lung cancer patients amid the COVID-19 pandemic: a case report of severe meningoencephalitis after switching to an extended-interval higher flat-dose nivolumab regimen. Transl Lung Cancer Res 2021; 10:1917-1923. [PMID: 34012801 PMCID: PMC8107731 DOI: 10.21037/tlcr-20-1315] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Alternative dosage regimens for some anticancer therapies have been proposed in the midst of the SARS-COV-2 pandemic in order to protect the patients from attending to health care facilities. Flat-dosing of several immune-checkpoint inhibitors (ICIs), including nivolumab, have been established. Although generally well tolerated with no new safety signals, new dosages can associate novel individual toxicities. As the use of ICIs is increasing in cancer patients, the present case report is a reminder for clinicians of potential novel toxicities, as well as the need for an interdisciplinary approach for their recognition and treatment. We report the occurrence of a severe neurologic toxicity in a patient with non-small cell lung cancer (NSCLC) who developed should be changed to which occurred after two doses of extended higher interval flat-dose nivolumab despite two years of clinical stability on prior nivolumab regimen. Patient developed fever, language impairment and altered mental status. The work-up tests excluded other potential causes and the most likely diagnosis was meningoencephalitis. Fortunately, with medical treatment, which consisted of high dose steroids, the patient recovered to his baseline situation and symptoms did not recurred, even though nivolumab was resumed. Alternate ICI regimens may have unique immune-related adverse event profiles.
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Affiliation(s)
- Anna Pous
- Medical Oncology Department, Catalan Institute of Oncology Badalona, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - Cristina Izquierdo
- Neurology Department. Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - Marc Cucurull
- Medical Oncology Department, Catalan Institute of Oncology Badalona, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain.,Institut Germans Trias i Pujol, Barcelona, Spain.,Badalona Applied Research Group in Oncology, Barcelona, Spain
| | - Silvia Sánchez
- Medical Oncology Department, Catalan Institute of Oncology Badalona, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - Clara Lezcano
- Pharmacy Department, Catalan Institute of Oncology Badalona, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - Marta Domenech
- Medical Oncology Department, Catalan Institute of Oncology Badalona, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain.,Institut Germans Trias i Pujol, Barcelona, Spain.,Badalona Applied Research Group in Oncology, Barcelona, Spain
| | - Laia Llobera
- Medical Oncology Department, Catalan Institute of Oncology Badalona, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - Andrea Plaja
- Medical Oncology Department, Catalan Institute of Oncology Badalona, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - Teresa Moran
- Medical Oncology Department, Catalan Institute of Oncology Badalona, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain.,Institut Germans Trias i Pujol, Barcelona, Spain.,Badalona Applied Research Group in Oncology, Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona (UAB), Campus Can Ruti, Barcelona, Spain
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Rodríguez-Serrano A, Carrión D, Gómez Rivas J, Álvarez-Maestro M, Sánchez S, Rodríguez de Bethencourt F, Aguilera Bazán A, Martínez-Piñeiro L. Prognostic value of urinary cytology for detecting urothelial carcinoma recurrence after radical cystectomy. Actas Urol Esp 2021. [PMID: 33509614 DOI: 10.1016/j.acuro.2020.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Urethral or upper urinary tract (UUT) recurrence of urothelial carcinoma (UC) after radical cystectomy (RC) are rare (4-6%), and their diagnosis usually occurs within the first two years. Although it is known that its early detection offers benefit in terms of survival, currently there are no clear recommendations for the detection of recurrence in the remnant urothelium (RU). Our aim is to determine the diagnostic value of urinary cytology for the detection of recurrences in the RU and to estimate its impact as an early diagnostic method on survival. MATERIAL AND METHODS Retrospective review of patients who underwent RC for urothelial carcinoma between 2008-2016, with a follow-up of at least 24 months. RESULTS The study included 142 patients. In a median follow-up of 68.5 months, nine patients (6.3%) presented recurrences in the RU (urethra: four, UUT: four, synchronous: one). The sensitivity and specificity of urinary cytology for the diagnosis of UUT recurrences were 20% and 96%, respectively. No significant differences were found between overall survival and cancer-specific survival among patients according to the urinary cytology results. CONCLUSION Recurrences in the RU after RC are infrequent; our study has shown that urinary cytology offers a low sensitivity for their diagnoses. For these reasons, we do not consider that urinary cytology provides useful information for surveillance of these patients.
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Rodríguez A, Yang C, Furutani E, García de Teresa B, Velázquez M, Filiatrault J, Sambel LA, Phan T, Flores-Guzmán P, Sánchez S, Monsiváis Orozco A, Mayani H, Bolukbasi OV, Färkkilä A, Epperly M, Greenberger J, Shimamura A, Frías S, Grompe M, Parmar K, D'Andrea AD. Inhibition of TGFβ1 and TGFβ3 promotes hematopoiesis in Fanconi anemia. Exp Hematol 2021; 93:70-84.e4. [PMID: 33166613 PMCID: PMC8686188 DOI: 10.1016/j.exphem.2020.11.002] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/28/2020] [Accepted: 11/03/2020] [Indexed: 12/31/2022]
Abstract
Fanconi anemia (FA) is a chromosome instability syndrome with congenital abnormalities, cancer predisposition and bone marrow failure (BMF). Although hematopoietic stem and progenitor cell (HSPC) transplantation is the recommended therapy, new therapies are needed for FA patients without suitable donors. BMF in FA is caused, at least in part, by a hyperactive growth-suppressive transforming growth factor β (TGFβ) pathway, regulated by the TGFβ1, TGFβ2, and TGFβ3 ligands. Accordingly, the TGFβ pathway is an attractive therapeutic target for FA. While inhibition of TGFβ1 and TGFβ3 promotes blood cell expansion, inhibition of TGFβ2 is known to suppress hematopoiesis. Here, we report the effects of AVID200, a potent TGFβ1- and TGFβ3-specific inhibitor, on FA hematopoiesis. AVID200 promoted the survival of murine FA HSPCs in vitro. AVID200 also promoted in vitro the survival of human HSPCs from patients with FA, with the strongest effect in patients progressing to severe aplastic anemia or myelodysplastic syndrome (MDS). Previous studies have indicated that the toxic upregulation of the nonhomologous end-joining (NHEJ) pathway accounts, at least in part, for the poor growth of FA HSPCs. AVID200 downregulated the expression of NHEJ-related genes and reduced DNA damage in primary FA HSPC in vitro and in in vivo models. Collectively, AVID200 exhibits activity in FA mouse and human preclinical models. AVID200 may therefore provide a therapeutic approach to improving BMF in FA.
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Affiliation(s)
- Alfredo Rodríguez
- Department of Radiation Oncology and Center for DNA Damage and Repair, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA; Instituto Nacional de Pediatría, Mexico City, Mexico
| | - Chunyu Yang
- Department of Radiation Oncology and Center for DNA Damage and Repair, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Elissa Furutani
- Dana Farber and Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA
| | | | - Martha Velázquez
- Department of Radiation Oncology and Center for DNA Damage and Repair, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Jessica Filiatrault
- Department of Radiation Oncology and Center for DNA Damage and Repair, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Larissa A Sambel
- Department of Radiation Oncology and Center for DNA Damage and Repair, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Tin Phan
- Department of Radiation Oncology and Center for DNA Damage and Repair, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Patricia Flores-Guzmán
- Unidad de Investigación Médica en Enfermedades Oncológicas, Hospital de Oncología, Centro Médico Nacional, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | | | | | - Héctor Mayani
- Unidad de Investigación Médica en Enfermedades Oncológicas, Hospital de Oncología, Centro Médico Nacional, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Ozge V Bolukbasi
- Dana Farber and Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA
| | - Anniina Färkkilä
- Department of Radiation Oncology and Center for DNA Damage and Repair, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA; Research Program in Systems Oncology & Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Michael Epperly
- Department of Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Joel Greenberger
- Department of Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Akiko Shimamura
- Dana Farber and Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, MA
| | - Sara Frías
- Instituto Nacional de Pediatría, Mexico City, Mexico; Instituto de Investigaciones Biomédicas, Universidad Nacional Autonóma de México, Mexico City, Mexico
| | | | - Kalindi Parmar
- Department of Radiation Oncology and Center for DNA Damage and Repair, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Alan D D'Andrea
- Department of Radiation Oncology and Center for DNA Damage and Repair, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA.
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Fraile J, Hermana S, Sánchez S, Paz L, Estévez J, de Juan A, Anchuelo J, Hernanz F. Tumor-Infiltrating Lymphocytes: Predictive changes in tumor size after neoadjuvant treatment. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)30688-2] [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: 11/29/2022]
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15
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Villa TG, Abril AG, Sánchez S, de Miguel T, Sánchez-Pérez A. Animal and human RNA viruses: genetic variability and ability to overcome vaccines. Arch Microbiol 2020; 203:443-464. [PMID: 32989475 PMCID: PMC7521576 DOI: 10.1007/s00203-020-02040-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/29/2020] [Accepted: 09/12/2020] [Indexed: 02/06/2023]
Abstract
RNA viruses, in general, exhibit high mutation rates; this is mainly due to the low fidelity displayed by the RNA-dependent polymerases required for their replication that lack the proofreading machinery to correct misincorporated nucleotides and produce high mutation rates. This lack of replication fidelity, together with the fact that RNA viruses can undergo spontaneous mutations, results in genetic variants displaying different viral morphogenesis, as well as variation on their surface glycoproteins that affect viral antigenicity. This diverse viral population, routinely containing a variety of mutants, is known as a viral ‘quasispecies’. The mutability of their virions allows for fast evolution of RNA viruses that develop antiviral resistance and overcome vaccines much more rapidly than DNA viruses. This also translates into the fact that pathogenic RNA viruses, that cause many diseases and deaths in humans, represent the major viral group involved in zoonotic disease transmission, and are responsible for worldwide pandemics.
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Affiliation(s)
- T G Villa
- Department of Microbiology, Faculty of Pharmacy, University of Santiago de Compostela, 5706, Santiago de Compostela, Spain.
| | - Ana G Abril
- Department of Microbiology, Faculty of Pharmacy, University of Santiago de Compostela, 5706, Santiago de Compostela, Spain
| | - S Sánchez
- Department of Microbiology, Faculty of Pharmacy, University of Santiago de Compostela, 5706, Santiago de Compostela, Spain
| | - T de Miguel
- Department of Microbiology, Faculty of Pharmacy, University of Santiago de Compostela, 5706, Santiago de Compostela, Spain
| | - A Sánchez-Pérez
- Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Sydney, NSW, 2006, Australia
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16
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Soto-Retes L, Gras JR, Del Cuvillo A, Soto G, Alvarez F, Quirce S, Cisneros C, Lluch I, Martínez E, Ingelmo AR, Sánchez S, Gómez-Bastero A, Sabadell C, Plaza V. Impact of nasosinusal endoscopic surgery by polyposis on inflammation, control and pulmonary function in asthma. World Allergy Organ J 2020. [DOI: 10.1016/j.waojou.2020.100202] [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] Open
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17
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Segura S, Gadea A, Nonell L, Andrades E, Sánchez S, Pujol R, Hernández-Muñoz I, Toll A. Identification of differentially expressed genes in actinic keratosis samples treated with ingenol mebutate gel. PLoS One 2020; 15:e0232146. [PMID: 32413042 PMCID: PMC7228095 DOI: 10.1371/journal.pone.0232146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 04/07/2020] [Indexed: 12/22/2022] Open
Abstract
Actinic keratosis is a common skin disease that may progress to invasive squamous cell carcinoma if left untreated. Ingenol mebutate has demonstrated efficacy in field treatment of actinic keratosis. However, molecular mechanisms on ingenol mebutate response are not yet fully understood. In this study, we evaluated the gene expression profiles of actinic keratosis lesions before and after treatment with ingenol mebutate using microarray technology. Actinic keratoses on face/scalp of 15 immunocompetent patients were identified and evaluated after treatment with topical ingenol mebutate gel 0.015%, applied once daily for 3 consecutive days. Diagnostic and clearance of lesions was determined by clinical, dermoscopic, and reflectance confocal microscopy criteria. Lesional and non-lesional skin biopsies were subjected to gene expression analysis profiled by Affymetrix microarray. Differentially expressed genes were identified, and enrichment analyses were performed using STRING database. At 8 weeks post-treatment, 60% of patients responded to ingenol mebutate therapy, achieving complete clearance in 40% of cases. A total of 128 differentially expressed genes were identified following treatment, and downregulated genes (114 of 128) revealed changes in pathways important to epidermal development, keratinocyte differentiation and cornification. In responder patients, 388 downregulated genes (of 450 differentially expressed genes) were also involved in development/differentiation of the epidermis, and immune system-related pathways, such as cytokine and interleukin signaling. Cluster analysis revealed two relevant clusters showing upregulated profile patterns in pre-treatment actinic keratoses of responders, as compared to non-responders. Again, differentially expressed genes were mainly associated with cornification, keratinization and keratinocyte differentiation. Overall, the present study provides insight into the gene expression profile of actinic keratoses after treatment with ingenol mebutate, as well as identification of genetic signatures that could predict treatment response.
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Affiliation(s)
- Sonia Segura
- Department of Dermatology, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain
| | - Alejandra Gadea
- Group of Inflamatory and Neoplasic Dermatological Diseases, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
- Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Paul Pascal (CRPP), Université de Bordeaux, Pessac, France
| | - Lara Nonell
- MARGenomics, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Evelyn Andrades
- Group of Inflamatory and Neoplasic Dermatological Diseases, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Silvia Sánchez
- Group of Inflamatory and Neoplasic Dermatological Diseases, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Ramon Pujol
- Department of Dermatology, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain
| | - Inmaculada Hernández-Muñoz
- Group of Inflamatory and Neoplasic Dermatological Diseases, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Agustí Toll
- Department of Dermatology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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18
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Deza G, Mensa-Vilaró A, March-Rodriguez A, Sánchez S, Pujol RM, Aróstegui JI, Giménez-Arnau AM. Acquired Cold Urticaria vs. Autoinflammatory Diseases, Genetic and Clinical Profile and Differential Diagnosis: Study of a Cohort of Patients in a Tertiary Reference Centre. Acta Derm Venereol 2019; 99:1071-1077. [PMID: 31408184 DOI: 10.2340/00015555-3292] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Acquired cold urticaria (ACU) is characterized by the development of itchy wheals after cold exposure. Generalized urticarial skin rashes triggered by cold exposure characterize certain monogenic autoinflammatory diseases (AIDs). The objective of this study is to investigate the presence of variants in genes causing AIDs that present with cold-induced urticarial skin rashes in patients clinically diagnosed with ACU, in order to look for susceptibility factors for the disease. Fifty patients with primary ACU were studied. Germline and post-zygotic variants on the NLRP3, NLRP12, NLRC4 and PLCG2 genes were investigated using next-generation sequencing technology. Seven patients (14%) carried 8 heterozygous germline variants in the following genes: NLRP3 (n = 1), NLRP12 (n = 3), NLRC4 (n = 1), PLCG2 (n = 3). No pathogenic or likely pathogenic variants were detected, and deep analyses of the sequences obtained did not identify any post-zygotic variant. In conclusion, ACU is not related to post-zygotic or germline pathogenic variants in the NLRP3, NLRP12, NLRC4 and PLCG2 genes.
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Affiliation(s)
- Gustavo Deza
- Department of Dermatology, Hospital del Mar- Institut Mar d'Investigacions Mèdiques, Universitat Autònoma de Barcelona (UAB), ES-08003 Barcelona, Spain
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Gonzales I, Bustos J, Sánchez S, Saavedra H. Subarachnoid neurocysticercosis, a severe presentation of the disease. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.1042] [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: 10/25/2022]
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Durán-Vinagre MA, Sánchez S, Feu S. Influencia de la actividad físico – deportiva y la intención de ser físicamente activos en universitarios de la facultad de educación de la UEX. Revista INFAD de Psicología 2019. [DOI: 10.17060/ijodaep.2019.n1.v5.1563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
La presente investigación analiza la cantidad de actividad físico - deportiva realizada y la intención de ser físicamente activo en el futuro, en una muestra de estudiantes universitarios del primer curso del Grado en Educación Primaria de la Facultad de Educación (Badajoz) en función del sexo. Hemos incidido en estas variables ya que existe un elevado porcentaje de adolescentes que no se mantienen suficientemente activos en su día a día, mostrando una alta prevalencia hacia la inactividad física y el comportamiento sedentario, priorizando en este sentido otras tareas o acciones personales, académicas o laborales. Dicho trabajo se ha realizado dentro del paradigma cuantitativo con una estrategia asociativa, descriptiva, comparativa y transversal utilizando el cuestionario MIFAU junto con un cuestionario Ad-hoc para conocer las variables sociodemográficas de los participantes. La muestra estaba formada por 170 sujetos (64,7% mujeres y 35,3% hombres). Los resultados más significativos en cuanto a la variable sexo revelan que las mujeres realizan menos actividad físico- deportiva a la semana que los hombres, cuyo tamaño del efecto es intermedio (U=2271,5, p<.05; d = .532), al igual que si comparamos dicha variable con la intención de ser físicamente activos en el futuro, en el que su tamaño del efecto es fuerte (U=1754, p< .05; d = .828).
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Barrientos-Rios R, Frias S, Velázquez-Aragón JA, Villaroel CE, Sánchez S, Molina B, Martínez A, Carnevale A, García-de-Teresa B, Bonilla E, Alvarado-Araiza CD, Valderrama-Hernández A, Ríos-Gallardo PT, Calzada-León R, Altamirano-Bustamante N, Torres L. Low bone mineral density and renal malformation in Mexican patients with Turner syndrome are associated with single nucleotide variants in vitamin D-metabolism genes. Gynecol Endocrinol 2019; 35:772-776. [PMID: 30887870 DOI: 10.1080/09513590.2019.1582626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Turner syndrome (TS) is a common genetic disorder. TS-phenotype includes short stature, gonadal dysgenesis, cardiac and kidney malformations, low bone mineral density (low-BMD) and thyroiditis. TS-phenotype varies from patient to patient and the cause is not clear, the genomic background may be an important contributor for this variability. Our aim was to identify the association of specific single nucleotide variants in the PTPN22, VDR, KL, and CYP27B1 genes and vitamin D-metabolism, heart malformation, renal malformation, thyroiditis, and low-BMD in 61 Mexican TS-patients. DNA samples were genotyped for SNVs: rs7975232 (VDR), rs9536282 (KL), rs4646536 (CYP27B1), and rs1599971 (PTPN22) using the KASP assay. Chi-square test under a recessive model and multifactorial dimensionality reduction method were used for analysis. We found a significant association between renal malformation and the rs9536282 (KL) variant and between rs4646536 (CYP27B1) and low-BMD, these variants may have modest effects on these characteristics but contribute to the variability of the TS phenotype. In addition, we identified gene-gene interactions between variants in genes KL, CYP27B1 and VDR related to vitamin D-metabolism and low-BMD in TS-patients. Our results support the idea that the genetic background of TS-patients contributes to the clinical variability seen in them.
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Affiliation(s)
- Rehotbevely Barrientos-Rios
- a Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría , Ciudad de México , Mexico
- b Posgrado en Biología Experimental, Universidad Autónoma Metropolitana , Ciudad de México , Mexico
| | - Sara Frias
- a Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría , Ciudad de México , Mexico
- c Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México , Ciudad de México , Mexico
| | - José A Velázquez-Aragón
- d Laboratorio de Biología Molecular, Departamento de Genética Humana, Instituto Nacional de Pediatría , Ciudad de México , Mexico
| | - Camilo E Villaroel
- e Departamento de Genética Humana, Instituto Nacional de Pediatría , Ciudad de México , Mexico
| | - Silvia Sánchez
- a Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría , Ciudad de México , Mexico
| | - Bertha Molina
- a Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría , Ciudad de México , Mexico
| | - Angélica Martínez
- f Departamento de Inmunogenómica y Enfermedades Metabólicas, Instituto Nacional de Medicina Genómica , Ciudad de México , Mexico
| | - Alessandra Carnevale
- g Laboratorio de Enfermedades Mendelianas, Instituto Nacional de Medicina Genómica , Ciudad de México , Mexico
| | - Benilde García-de-Teresa
- a Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría , Ciudad de México , Mexico
| | - Edmundo Bonilla
- b Posgrado en Biología Experimental, Universidad Autónoma Metropolitana , Ciudad de México , Mexico
| | | | | | | | - Raúl Calzada-León
- h Servicio de Endocrinología, Instituto Nacional de Pediatría , Ciudad de México , Mexico
| | | | - Leda Torres
- a Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría , Ciudad de México , Mexico
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Burgueño MJ, Alonso A, Sánchez S. Do cosmetic treatments increase the incorporation of amphetamines into hair? Toxicologie Analytique et Clinique 2019. [DOI: 10.1016/j.toxac.2019.03.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Deza G, March-Rodríguez A, Sánchez S, Ribas-Llauradó C, Soto D, Pujol RM, Gimeno R, Giménez-Arnau AM. Relevance of the Basophil High-Affinity IgE Receptor in Chronic Urticaria: Clinical Experience from a Tertiary Care Institution. J Allergy Clin Immunol Pract 2019; 7:1619-1626.e1. [PMID: 30685572 DOI: 10.1016/j.jaip.2019.01.026] [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] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 12/21/2018] [Accepted: 01/11/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND The high-affinity IgE receptor (FcεRI) expression on effector cells has been poorly characterized in patients with chronic urticaria (CU) to date. OBJECTIVES To investigate the FcεRI expression on blood basophils in a large cohort of patients with CU and its potential relationship with relevant features of the disease. METHODS Basophil FcεRI expression was measured by flow cytometry in 287 patients with CU (192 with chronic spontaneous urticaria and 95 with chronic inducible urticaria) at their initial evaluation in our department. A control group of healthy nonatopic individuals was included to provide reference data, and the effect of antihistamine and anti-IgE therapy on the basophil FcεRI expression was also evaluated in a cohort of patients with CU. RESULTS The median FcεRI expression was found significantly higher in patients with CU compared with healthy controls (P < .0001). A positive correlation was found between serum IgE levels and basophil FcεRI expression (R = 0.422; P < .001). Significantly higher FcεRI levels on basophils were detected in patients with CU who presented with concomitant atopic features (P = .003), negative autologous serum skin test (P = .002), negative autologous plasma skin test (P = .009), or undetected levels of antithyroid antibodies (P = 0.01). Baseline FcεRI expression was not related to the activity and duration of the disease, and was not significantly modified during antihistamine therapy; however, it correlated with the clinical response to omalizumab (P = .003). CONCLUSIONS Although further multicenter studies are needed to corroborate these findings, the assessment of basophil FcεRI levels might be relevant in daily clinical practice supporting an autoimmune pathogenesis and predicting response to anti-IgE treatment.
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Affiliation(s)
- Gustavo Deza
- Department of Dermatology, Hospital del Mar-Institut Mar d'Investigacions Mèdiques, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Alvaro March-Rodríguez
- Department of Dermatology, Hospital del Mar-Institut Mar d'Investigacions Mèdiques, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Silvia Sánchez
- Department of Dermatology, Hospital del Mar-Institut Mar d'Investigacions Mèdiques, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Clara Ribas-Llauradó
- Department of Dermatology, Hospital del Mar-Institut Mar d'Investigacions Mèdiques, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain; Department of Immunology, Hospital del Mar-Institut Mar d'Investigacions Mèdiques, Barcelona, Spain
| | - Dulce Soto
- Department of Immunology, Hospital del Mar-Institut Mar d'Investigacions Mèdiques, Barcelona, Spain
| | - Ramon M Pujol
- Department of Dermatology, Hospital del Mar-Institut Mar d'Investigacions Mèdiques, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Ramon Gimeno
- Department of Immunology, Hospital del Mar-Institut Mar d'Investigacions Mèdiques, Barcelona, Spain
| | - Ana M Giménez-Arnau
- Department of Dermatology, Hospital del Mar-Institut Mar d'Investigacions Mèdiques, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain.
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Frias S, Ramos S, Salas C, Molina B, Sánchez S, Rivera-Luna R. Nonclonal Chromosome Aberrations and Genome Chaos in Somatic and Germ Cells from Patients and Survivors of Hodgkin Lymphoma. Genes (Basel) 2019; 10:genes10010037. [PMID: 30634664 PMCID: PMC6357137 DOI: 10.3390/genes10010037] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 11/09/2018] [Revised: 12/10/2018] [Accepted: 01/04/2019] [Indexed: 12/27/2022] Open
Abstract
Anticancer regimens for Hodgkin lymphoma (HL) patients include highly genotoxic drugs that have been very successful in killing tumor cells and providing a 90% disease-free survival at five years. However, some of these treatments do not have a specific cell target, damaging both cancerous and normal cells. Thus, HL survivors have a high risk of developing new primary cancers, both hematologic and solid tumors, which have been related to treatment. Several studies have shown that after treatment, HL patients and survivors present persistent chromosomal instability, including nonclonal chromosomal aberrations. The frequency and type of chromosomal abnormalities appear to depend on the type of therapy and the cell type examined. For example, MOPP chemotherapy affects hematopoietic and germ stem cells leading to long-term genotoxic effects and azoospermia, while ABVD chemotherapy affects transiently sperm cells, with most of the patients showing recovery of spermatogenesis. Both regimens have long-term effects in somatic cells, presenting nonclonal chromosomal aberrations and genomic chaos in a fraction of noncancerous cells. This is a source of karyotypic heterogeneity that could eventually generate a more stable population acquiring clonal chromosomal aberrations and leading towards the development of a new cancer.
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Affiliation(s)
- Sara Frias
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Cd. De Mexico, P.O. Box 04530, Mexico.
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de Mexico, Cd. De Mexico, P.O. Box 04510, Mexico.
| | - Sandra Ramos
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Cd. De Mexico, P.O. Box 04530, Mexico.
| | - Consuelo Salas
- Laboratorio de Genética y Cáncer, Instituto Nacional de Pediatría, Cd. De Mexico, P.O. Box 04530, Mexico.
| | - Bertha Molina
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Cd. De Mexico, P.O. Box 04530, Mexico.
| | - Silvia Sánchez
- Laboratorio de Citogenética, Instituto Nacional de Pediatría, Cd. De Mexico, P.O. Box 04530, Mexico.
| | - Roberto Rivera-Luna
- Subdirección de Hemato-Oncología, Instituto Nacional de Pediatría, Cd. De Mexico, P.O. Box 04530, Mexico.
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Moscoso M, Sánchez S. Society for Neuroscience - 48th Annual Meeting. San Diego, California, USA - November 3-7, 2018. DRUG FUTURE 2019. [DOI: 10.1358/dof.2019.44.1.2954217] [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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Yokoyama E, Del Castillo V, Sánchez S, Ramos S, Molina B, Torres L, Navarro MJ, Avila S, Castrillo JL, García-De Teresa B, Asch B, Frías S. Derivative chromosomes involving 5p large rearranged segments went unnoticed with the use of conventional cytogenetics. Mol Cytogenet 2018; 11:30. [PMID: 29760780 PMCID: PMC5941813 DOI: 10.1186/s13039-018-0374-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 03/27/2018] [Indexed: 11/10/2022] Open
Abstract
Background In countries where comparative genomic hybridization arrays (aCGH) and next generation sequencing are not widely available due to accessibility and economic constraints, conventional 400–500-band karyotyping is the first-line choice for the etiological diagnosis of patients with congenital malformations and intellectual disability. Conventional karyotype analysis can rule out chromosomal alterations greater than 10 Mb. However, some large structural abnormalities, such as derivative chromosomes, may go undetected when the analysis is performed at less than a 550-band resolution and the size and banding pattern of the interchanged segments are similar. Derivatives frequently originate from inter-chromosomal exchanges and sometimes are inherited from a parent who carries a reciprocal translocation. Case presentation We present two cases with derivative chromosomes involving a 9.1 Mb 5p deletion/14.8 Mb 10p duplication in the first patient and a 19.9 Mb 5p deletion/ 18.5 Mb 9p duplication in the second patient. These long chromosomal imbalances were ascertained by aCGH but not by conventional cytogenetics. Both patients presented with a deletion of the Cri du chat syndrome region and a duplication of another genomic region. Each patient had a unique clinical picture, and although they presented some features of Cri du chat syndrome, the phenotype did not conclusively point towards this diagnosis, although a chromosomopathy was suspected. Conclusions These cases highlight the fundamental role of the clinical suspicion in guiding the approach for the etiological diagnosis of patients. Molecular cytogenetics techniques, such as aCGH, should be considered when the clinician suspects the presence of a chromosomal imbalance in spite of a normal karyotype.
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Affiliation(s)
- Emiy Yokoyama
- 1Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, México
| | - Victoria Del Castillo
- 1Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, México
| | - Silvia Sánchez
- 2Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, México
| | - Sandra Ramos
- 2Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, México
| | - Bertha Molina
- 2Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, México
| | - Leda Torres
- 2Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, México
| | - María José Navarro
- 1Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, México
| | | | | | - Benilde García-De Teresa
- 2Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, México
| | - Bárbara Asch
- Laboratorio Diagen, Hospital ABC Santa Fe, Cuidad de México, México
| | - Sara Frías
- 2Laboratorio de Citogenética, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, México.,5Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Avenida IMAN no. 1, Torre de Investigación, Colonia Insurgentes Cuicuilco, Coyoacán, Ciudad de México Mexico
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San Román B, Garrido V, Sánchez S, Martínez-Ballesteros I, Garaizar J, Mainar-Jaime RC, Migura-Garcia L, Grilló MJ. Relationship between Salmonella infection, shedding and serology in fattening pigs in low-moderate prevalence areas. Zoonoses Public Health 2018; 65:481-489. [PMID: 29700976 DOI: 10.1111/zph.12453] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 03/14/2017] [Indexed: 12/21/2022]
Abstract
Salmonella is a major foodborne pathogen causing important zoonosis worldwide. Pigs asymptomatically infected in mesenteric lymph nodes (MLN) can be intermittent shedders of the pathogen through faeces, being considered a major source of human infections. European baseline studies of fattening pig salmonellosis are based on Salmonella detection in MLN. This work studies the relationship between Salmonella infection in MLN and intestinal content (IC) shedding at slaughter and the relationship between the presence of the pathogen and the serologic status at farm level. Mean Salmonella prevalence in the selected pigs (vertically integrated production system of Navarra, Spain) was 7.2% in MLN, 8.4% in IC and 9.6% in serum samples. In this low-moderate prevalence context, poor concordance was found between MLN infection and shedding at slaughter and between bacteriology and serology. In fact, most of shedders were found uninfected in MLN (83%) or carrying different Salmonella strains in MLN and in IC (90%). The most prevalent Salmonellae were Typhimurium resistant to ACSSuT ± Nx or ASSuT antibiotic families, more frequently found invading the MLN (70%) than in IC (33.9%). Multivariable analysis revealed that risk factors associated with the presence of Salmonella in MLN or in IC were different, mainly related either to good hygiene practices or to water and feed control, respectively. Overall, in this prevalence context, detection of Salmonella in MLN is an unreliable predictor of faecal shedding at abattoir, indicating that subclinical infections in fattening pigs MLN could have limited relevance in the IC shedding.
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Affiliation(s)
- B San Román
- Instituto de Agrobiotecnología (CSIC-UPNA-Gobierno de Navarra), Mutilva, Spain
| | - V Garrido
- Instituto de Agrobiotecnología (CSIC-UPNA-Gobierno de Navarra), Mutilva, Spain
| | - S Sánchez
- Instituto de Agrobiotecnología (CSIC-UPNA-Gobierno de Navarra), Mutilva, Spain
| | - I Martínez-Ballesteros
- Dpto. de Inmunología, Microbiología y Parasitología, Facultad de farmacia, UPV/EHU, Calle Paseo de la Universidad, Vitoria, Spain
| | - J Garaizar
- Dpto. de Inmunología, Microbiología y Parasitología, Facultad de farmacia, UPV/EHU, Calle Paseo de la Universidad, Vitoria, Spain
| | - R C Mainar-Jaime
- Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - L Migura-Garcia
- Centre de Recerca en Sanitat Animal, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Campus de la Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M J Grilló
- Instituto de Agrobiotecnología (CSIC-UPNA-Gobierno de Navarra), Mutilva, Spain
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Sallabanda M, García-Berrocal M, Expósito M, García-Jarabo V, Rincón D, Sánchez S, Martínez I, Magallón R, Zapata I, De la Torre A. EP-1185: Outcome for brain metastasis of NSCLC treated with SRS or hypofractionation. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31495-6] [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: 10/14/2022]
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Yokoyama E, Smith-Pellegrin DL, Sánchez S, Molina B, Rodríguez A, Juárez R, Lieberman E, Avila S, Castrillo JL, Del Castillo V, Frías S. 7p15 deletion as the cause of hand-foot-genital syndrome: a case report, literature review and proposal of a minimum region for this phenotype. Mol Cytogenet 2017; 10:42. [PMID: 29177010 PMCID: PMC5688765 DOI: 10.1186/s13039-017-0345-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 09/04/2017] [Accepted: 11/07/2017] [Indexed: 01/30/2023] Open
Abstract
Background Hand-foot-genital syndrome (HFGS) is a rare condition characterized by congenital malformations in the limbs and genitourinary tract. Generally, this syndrome occurs due to point mutations that cause loss of function of the HOXA13 gene, which is located on 7p15; however, there are some patients with HFGS caused by interstitial deletions in this region. Case presentation We describe a pediatric Mexican patient who came to the Medical Genetics Department at the National Institute of Pediatrics because he presented with genital, hand and feet anomalies, facial dysmorphisms, and learning difficulties. Array CGH reported a 12.7 Mb deletion that includes HOXA13. Conclusions We compared our patient with cases of HFGS reported in the literature caused by a microdeletion; we found a minimum shared region in 7p15.2. By analyzing the phenotype in these patients, we suggest that microdeletions in this region should be investigated in all patients with clinical characteristics of HFGS who also present with dysplastic ears, mainly low-set implantation with a prominent antihelix, as well as a low nasal bridge and long philtrum.
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Affiliation(s)
- Emiy Yokoyama
- Departamento de Genética Humana, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C, Colonia Insurgentes Cuicuilco, Coyoacán, Ciudad de México, CDMX, Mexico
| | - Dennise Lesley Smith-Pellegrin
- Departamento de Genética Humana, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C, Colonia Insurgentes Cuicuilco, Coyoacán, Ciudad de México, CDMX, Mexico
| | - Silvia Sánchez
- Laboratorio de Citogenética, Departamento de Investigación en Genética Humana. Instituto Nacional de Pediatría, Avenida IMAN no. 1, Torre de Investigación, Colonia Insurgentes Cuicuilco, Coyoacán, Ciudad de México, CDMX, Mexico
| | - Bertha Molina
- Laboratorio de Citogenética, Departamento de Investigación en Genética Humana. Instituto Nacional de Pediatría, Avenida IMAN no. 1, Torre de Investigación, Colonia Insurgentes Cuicuilco, Coyoacán, Ciudad de México, CDMX, Mexico
| | - Alfredo Rodríguez
- Laboratorio de Citogenética, Departamento de Investigación en Genética Humana. Instituto Nacional de Pediatría, Avenida IMAN no. 1, Torre de Investigación, Colonia Insurgentes Cuicuilco, Coyoacán, Ciudad de México, CDMX, Mexico
| | - Rocío Juárez
- Laboratorio de Genética y Cáncer. Departamento de Genética Humana, Instituto Nacional de Pediatría, Avenida IMAN no. 1, Torre de Investigación, Colonia Insurgentes Cuicuilco, Coyoacán, México D.F, Mexico
| | - Esther Lieberman
- Departamento de Genética Humana, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C, Colonia Insurgentes Cuicuilco, Coyoacán, Ciudad de México, CDMX, Mexico
| | | | | | - Victoria Del Castillo
- Departamento de Genética Humana, Instituto Nacional de Pediatría, Insurgentes Sur 3700-C, Colonia Insurgentes Cuicuilco, Coyoacán, Ciudad de México, CDMX, Mexico
| | - Sara Frías
- Laboratorio de Citogenética, Departamento de Investigación en Genética Humana. Instituto Nacional de Pediatría, Avenida IMAN no. 1, Torre de Investigación, Colonia Insurgentes Cuicuilco, Coyoacán, Ciudad de México, CDMX, Mexico.,Departamento de Medicina Genómica y Toxicología Ambiental. Instituto de Investigaciones Biomédicas, UNAM, Avenida IMAN no. 1, Torre de Investigación, Colonia Insurgentes Cuicuilco, Coyoacán. Ciudad de México, CDMX., México D.F, Mexico
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Vilela D, Hortelao AC, Balderas-Xicohténcatl R, Hirscher M, Hahn K, Ma X, Sánchez S. Facile fabrication of mesoporous silica micro-jets with multi-functionalities. Nanoscale 2017; 9:13990-13997. [PMID: 28891580 PMCID: PMC5708346 DOI: 10.1039/c7nr04527a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Self-propelled micro/nano-devices have been proved as powerful tools in various applications given their capability of both autonomous motion and on-demand task fulfilment. Tubular micro-jets stand out as an important member in the family of self-propelled micro/nano-devices and are widely explored with respect to their fabrication and functionalization. A few methods are currently available for the fabrication of tubular micro-jets, nevertheless there is still a demand to explore the fabrication of tubular micro-jets made of versatile materials and with the capability of multi-functionalization. Here, we present a facile strategy for the fabrication of mesoporous silica micro-jets (MSMJs) for tubular micromotors which can carry out multiple tasks depending on their functionalities. The synthesis of MSMJs does not require the use of any equipment, making it facile and cost-effective for future practical use. The MSMJs can be modified inside, outside or both with different kinds of metal nanoparticles, which provide these micromotors with a possibility of additional properties, such as the anti-bacterial effect by silver nanoparticles, or biochemical sensing based on surface enhanced Raman scattering (SERS) by gold nanoparticles. Because of the high porosity, high surface area and also the easy surface chemistry process, the MSMJs can be employed for the efficient removal of heavy metals in contaminated water, as well as for the controlled and active drug delivery, as two proof-of-concept examples of environmental and biomedical applications, respectively. Therefore, taking into account the new, simple and cheap method of fabrication, highly porous structure, and multiple functionalities, the mesoporous silica based micro-jets can serve as efficient tools for desired applications.
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Affiliation(s)
- D Vilela
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569 Stuttgart, Germany.
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Abstract
The ubiquitous random motion of mesoscopic active particles, such as cells, can be "rectified" or directed by embedding the particles in systems containing local and periodic asymmetric cues. Incorporated on lab-on-a-chip devices, these microratchet-like structures can be used to self-propel fluids, transport particles, and direct cell motion in the absence of external power sources. In this Focus article we discuss recent advances in the use of ratchet-like geometries in microfluidics which could open new avenues in biomedicine for applications in diagnosis, cancer biology, and bioengineering.
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Affiliation(s)
- D Caballero
- Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 15-21, 08028 Barcelona, Spain. and Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain and Department of Engineering: Electronics, University of Barcelona, 08028 Barcelona, Spain
| | - J Katuri
- Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 15-21, 08028 Barcelona, Spain. and Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, Stuttgart, Germany.
| | - J Samitier
- Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 15-21, 08028 Barcelona, Spain. and Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, Spain and Department of Engineering: Electronics, University of Barcelona, 08028 Barcelona, Spain
| | - S Sánchez
- Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 15-21, 08028 Barcelona, Spain. and Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, Stuttgart, Germany. and Catalan Institute for Research and Advanced Studies (ICREA), Psg. Lluís Companys, 23, 08010 Barcelona, Spain
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Cowper Coles F, Sánchez S, Jorge LC. Estructura cariotípica de dos poblaciones de Rhamdia quelen (Pisces, Siluriformes) de los Ríos Paraná y Paraguay (Argentina). ACTA ACUST UNITED AC 2016. [DOI: 10.30972/vet.242633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Se analizaron 13 ejemplares de Rhamdia quelen (4 hembras y 9 machos) capturados en el río Paraná y 7 ejemplares (3 hembras y 4 machos) del río Paraguay. En total se registraron 244 metafases. Los especimenes mostraron un número diploide de 58 cromosomas. Con una formula cariotípica de 46M/SM + 12ST, el número fundamental (FN) fue de 116. No se registraron diferencias entre ambas poblaciones. No se evidenció la ocurrencia de heteromorfismo cromosómico relacionado con los sexos. En ambas poblaciones, las regiones organizadoras de nucléolos (NOR) se localizaron en la región terminal del brazo corto de un par subtelocéntrico (par 27). Los cromosomas del complemento A mostraron bandas C+ distribuidas principalmente sobre las NOR, en las regiones terminales y pericentroméricas de unos pocos cromosomas. Se concluye que las poblaciones de R. quelen analizadas antuvieron su macro-estructura cariotípica conservada con respecto al número diploide de 58, con cromosomas de dos brazos, región organizadora de nucléolos de tipo simple y un patrón pobre de bandas C.
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Abstract
Soft robotics is an emerging discipline that employs soft flexible materials such as fluids, gels and elastomers in order to enhance the use of robotics in healthcare applications. Compared to their rigid counterparts, soft robotic systems have flexible and rheological properties that are closely related to biological systems, thus allowing the development of adaptive and flexible interactions with complex dynamic environments. With new technologies arising in bioengineering, the integration of living cells into soft robotic systems offers the possibility of accomplishing multiple complex functions such as sensing and actuating upon external stimuli. These emerging bio-hybrid systems are showing promising outcomes and opening up new avenues in the field of soft robotics for applications in healthcare and other fields.
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Affiliation(s)
- T Patino
- Smart nano-bio-devices Laboratory, Institute for Bioengineering of Catalonia (IBEC), Baldiri i Reixac, 10-12, Barcelona 08028, Spain.
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Della Rosa P, Roux JP, Sánchez S, Ortiz JC, Domitrovic HA. Productividad del sábalo (Prochilodus lineatus) cultivado en estanques con diferentes tipos de fondo. ACTA ACUST UNITED AC 2016. [DOI: 10.30972/vet.252507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
El sábalo <i>(Prochilodus lineatus)</i> es la especie más importante para la pesca comercial y de subsistencia en Argentina. Sin embargo, hace algunos años alcanzó una situación de riesgo que motivó que el cultivo en cautiverio sea impulsado por diversos sectores públicos y privados debido al interés en la conservación ambiental. Este pez presenta un rápido crecimiento, elevada fecundidad y rusticidad. El objetivo del presente trabajo fue analizar comparativamente estanques de cultivo de <i>P. lineatus</i> con dos tipos de fondo, uno de cemento y otro de tierra, a fin de identificar alguna condición que influya sobre la productividad de la especie. Fueron utilizados 450 juveniles de 60 días y 26 g de peso vivo promedio, a quienes se suministró alimento balanceado en base al 2% de la biomasa. Las variables de calidad de agua se registraron periódicamente, al igual que las biometrías, para ajustar la alimentación al crecimiento de los peces. El ensayo tuvo una duración de 340 días. Los parámetros físicoquímicos de calidad de agua permanecieron dentro de valores adecuados para la especie. Las variables productivas analizadas fueron: coeficiente de crecimiento específico, biomasa total (donde se observaron diferencias significativas, p<0,05) y tasa de supervivencia (sin diferencias significativas entre ambos tratamientos, p>0,05). Los resultados obtenidos demuestran que los estanques con fondo de cemento no permiten que el sábalo se desarrolle como lo hace en estanques con fondo de tierra. Sin embargo, representan una alternativa para el cultivo de la especie, que debería continuar evaluándose con el objeto de lograr el mantenimiento de una adecuada cantidad de material orgánico que satisfaga las necesidades de los peces en cultivo.
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González Y, Mancebo A, Acosta E, Sosa I, León A, Blanco D, González C, Curbelo A, Prado P, Morgado L, Quesada R, Pérez A, Hugues B, Fuentes D, Samada I, Casacó A, Sánchez S, Contreras F, Contreras B, Ballart N, Valdés O, Lemus M, Estévez T, Jaime U, Díaz Y, Peña A, Ronda M, Pérez B, Escalona M, Mantilla N, Matos D. Toxicological safety evaluation of ACM T1H by intravenously route in CENP: Beagle dogs. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.07.623] [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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36
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Abstract
Sustainable energy generation is of recent interest due to a growing energy demand across the globe and increasing environmental issues caused by conventional non-renewable means of power generation. In the context of microsystems, portable electronics and lab-on-a-chip based (bio)chemical sensors would essentially require fully integrated, reliable means of power generation. Microfluidic-based fuel cells can offer unique advantages compared to conventional fuel cells such as high surface area-to-volume ratio, ease of integration, cost effectiveness and portability. Here, we summarize recent developments which utilize the potential of microfluidic devices for energy generation.
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Affiliation(s)
- M Safdar
- Department of Chemistry, University of Eastern Finland, FI-80101 Joensuu, Finland.
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Romero-Rodríguez A, Ruiz-Villafán B, Tierrafría VH, Rodríguez-Sanoja R, Sánchez S. Carbon Catabolite Regulation of Secondary Metabolite Formation and Morphological Differentiation in Streptomyces coelicolor. Appl Biochem Biotechnol 2016; 180:1152-1166. [PMID: 27372741 DOI: 10.1007/s12010-016-2158-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 06/03/2016] [Indexed: 10/21/2022]
Abstract
In the genus Streptomyces, carbon utilization is of significant importance for the expression of genes involved in morphological differentiation and antibiotic production. However, there is little information about the mechanism involved in these effects. In the present work, it was found that glucose exerted a suppressive effect on the Streptomyces coelicolor actinorhodin (Act) and undecylprodigiosin (Red) production, as well as in its morphological differentiation. Accordingly, using a high-density microarray approach in S. coelicolor grown under glucose repression, at early growth stages, a negative effect was exerted on the transcription of genes involved in Act and Red production, when compared with non-repressive conditions. Seven genes of Act and at least ten genes of Red production were down-regulated by glucose. Stronger repression was observed on the initial steps of antibiotics formation. On the contrary, the coelimycin P1 cluster was up-regulated by glucose. Regarding differentiation, no sporulation was observed in the presence of glucose and expression of a set of genes of the bld cascade was repressed as well as chaplins and rodlins genes. Finally, a series of transcriptional regulators involved in both processes were up- or down-regulated by glucose. This is the first global transcriptomic approach performed to understand the molecular basis of the glucose effect on the synthesis of secondary metabolism and differentiation in the genus Streptomyces. The results of this study are opening new avenues for further exploration.
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Affiliation(s)
- A Romero-Rodríguez
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Cd. de Mexico, Mexico
| | - B Ruiz-Villafán
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Cd. de Mexico, Mexico
| | - V H Tierrafría
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Cd. de Mexico, Mexico
| | - R Rodríguez-Sanoja
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Cd. de Mexico, Mexico
| | - S Sánchez
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Cd. de Mexico, Mexico.
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Abstract
Point-of-care diagnostics (PoC) and personalised medicine are highly valuable for the improvement of world health. Smartphone PoC platforms which precisely diagnose diseases and track their development through the detection of several bioanalytes represent one of the newest and most exciting advancements towards mass-screening applications. Here we focus on recent advances in both multiplexed and smartphone integrated PoC sensors.
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Affiliation(s)
- A Romeo
- Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac, 10-12, 08028 Barcelona, Spain.
| | - T S Leung
- Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac, 10-12, 08028 Barcelona, Spain.
| | - S Sánchez
- Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac, 10-12, 08028 Barcelona, Spain. and Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany. and Institució Catalana de Recerca i Estudis Avançats (ICREA), Psg. Lluís Companys 23, 08010 Barcelona, Spain
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Cerón A, Ruano AL, Sánchez S, Chew AS, Díaz D, Hernández A, Flores W. Abuse and discrimination towards indigenous people in public health care facilities: experiences from rural Guatemala. Int J Equity Health 2016; 15:77. [PMID: 27177690 PMCID: PMC4866428 DOI: 10.1186/s12939-016-0367-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 05/09/2016] [Indexed: 11/10/2022] Open
Abstract
Background Health inequalities disproportionally affect indigenous people in Guatemala. Previous studies have noted that the disadvantageous situation of indigenous people is the result of complex and structural elements such as social exclusion, racism and discrimination. These elements need to be addressed in order to tackle the social determinants of health. This research was part of a larger participatory collaboration between Centro de Estudios para la Equidad y Gobernanza en los Servicios de Salud (CEGSS) and community based organizations aiming to implement social accountability in rural indigenous municipalities of Guatemala. Discrimination while seeking health care services in public facilities was ranked among the top three problems by communities and that should be addressed in the social accountability intervention. This study aimed to understand and categorize the episodes of discrimination as reported by indigenous communities. Methods A participatory approach was used, involving CEGSS’s researchers and field staff and community leaders. One focus group in one rural village of 13 different municipalities was implemented. Focus groups were aimed at identifying instances of mistreatment in health care services and documenting the account of those who were affected or who witnessed them. All of the 132 obtained episodes were transcribed and scrutinized using a thematic analysis. Results Episodes described by participants ranged from indifference to violence (psychological, symbolic, and physical), including coercion, mockery, deception and racism. Different expressions of discrimination and mistreatment associated to poverty, language barriers, gender, ethnicity and social class were narrated by participants. Conclusions Addressing mistreatment in public health settings will involve tackling the prevalent forms of discrimination, including racism. This will likely require profound, complex and sustained interventions at the programmatic and policy levels beyond the strict realm of public health services. Future studies should assess the magnitude of the occurrence of episodes of maltreatment and racism within indigenous areas and also explore the providers’ perceptions about the problem.
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Affiliation(s)
- Alejandro Cerón
- Center for the Study of Equity and Governance in Health Systems (CEGSS), Guatemala, Guatemala. .,University of Denver, Denver, CO, 80208, USA.
| | - Ana Lorena Ruano
- Center for the Study of Equity and Governance in Health Systems (CEGSS), Guatemala, Guatemala
| | - Silvia Sánchez
- Center for the Study of Equity and Governance in Health Systems (CEGSS), Guatemala, Guatemala
| | - Aiken S Chew
- Center for the Study of Equity and Governance in Health Systems (CEGSS), Guatemala, Guatemala
| | - Diego Díaz
- Center for the Study of Equity and Governance in Health Systems (CEGSS), Guatemala, Guatemala
| | - Alison Hernández
- Center for the Study of Equity and Governance in Health Systems (CEGSS), Guatemala, Guatemala
| | - Walter Flores
- Center for the Study of Equity and Governance in Health Systems (CEGSS), Guatemala, Guatemala
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Abstract
Microswimmers, such as bacteria, are known to show different behaviours depending on their local environment. They identify spatial chemical gradients to find nutrient rich areas (chemotaxis) and interact with shear flows to accumulate in high shear regions. Recently, artificial microswimmers have been developed which mimic their natural counterparts in many ways. One of the exciting topics in this field is to study these artificial motors in several natural settings like the ones bacteria interact with. In this Focus article, we summarize recent observations of artificial swimmers in chemical gradients, shear flows and other interesting natural environments simulated in the lab using microfluidics and nanotechnology.
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Affiliation(s)
- J Katuri
- Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569, Stuttgart, Germany. and Institute for Bioengineering of Catalonia (IBEC), Baldiri I Reixac 10-12, 08028 Barcelona, Spain.
| | - K D Seo
- Department of Mechanical Engineering, POSTECH (Pohang University of Science and Technology), Pohang, Gyeongbuk, 790-784 Korea
| | - D S Kim
- Department of Mechanical Engineering, POSTECH (Pohang University of Science and Technology), Pohang, Gyeongbuk, 790-784 Korea
| | - S Sánchez
- Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569, Stuttgart, Germany. and Institute for Bioengineering of Catalonia (IBEC), Baldiri I Reixac 10-12, 08028 Barcelona, Spain. and Catalan Institute for Research and Advanced Studies (ICREA), Psg. Lluís Companys, 23, 08010 Barcelona, Spain
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Martin F, Gutierrez-Guerrero A, Sánchez S, Galvani G, Benabdellah K. Genome editing: An alternative to retroviral vectors for Wiskott-Aldrich Syndrome (WAS) Gene Therapy? Expert Opin Orphan Drugs 2016. [DOI: 10.1517/21678707.2016.1142870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Gila A, Beltrán G, Bejaoui M, Sánchez S, Nopens I, Jiménez A. Modeling the settling behavior in virgin olive oil from a horizontal screw solid bowl. J FOOD ENG 2016. [DOI: 10.1016/j.jfoodeng.2015.07.016] [Citation(s) in RCA: 5] [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: 10/23/2022]
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43
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Cubero Juánez J, Franco-Reynolds L, Pozo A, Sánchez S, Benítez A, Bermejo M. Health education: an analysis of wine and carbonated beverage consumption in college students in Extremadura. NUTR HOSP 2015; 32 Suppl 2:10287. [PMID: 26615257 DOI: 10.3305/nh.2015.32.sup2.10287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Affiliation(s)
| | | | - A Pozo
- University of Extremadura. Badajoz. Spain
| | - S Sánchez
- University of Extremadura. Badajoz. Spain
| | - A Benítez
- University of Extremadura. Badajoz. Spain
| | - Ml Bermejo
- University of Extremadura. Badajoz. Spain
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Sanclemente G, Pardo H, Sánchez S, Bonfill X. Analysis of the Quality of Clinical Trials Published in Spanish-Language Dermatology Journals Between 1997 and 2012. Actas Dermosifiliogr 2015; 107:44-54. [PMID: 26546026 DOI: 10.1016/j.ad.2015.07.008] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 10/22/2022] Open
Abstract
INTRODUCTION The value of randomized clinical trials (RCTs) undertaken to identify an association between an intervention and an outcome is determined by their quality and scientific rigor. OBJECTIVE To assess the methodological quality of RCTs published in Spanish-language dermatology journals. METHODS By way of a systematic manual search, we identified all the RCTs in journals published in Spain and Latin America between 1997 (the year in which the CONSORT statement was published) and 2012. Risk of bias was evaluated for each RCT by assessing the following domains: randomization sequence generation, allocation concealment, blinding of patients and those assessing outcomes, missing data, and patient follow-up. Source of funding and conflict of interest statements, if any, were recorded for each study. RESULTS The search identified 70 RCTs published in 21 journals. Most of the RCTs had a high risk of bias, primarily because of gaps in the reporting of important methodological aspects. The source of funding was reported in only 15 studies. DISCUSSION AND CONCLUSIONS In spite of the considerable number of Spanish and Latin American journals, few RCTs have been published in the 15 years analyzed. Most of the RCTs published had serious defects in that the authors omitted methodological information essential to any evaluation of the quality of the trial and failed to report sources of funding or possible conflicts of interest for the authors involved. Authors of experimental clinical research in dermatology published in Spain and Latin America need to substantially improve both the design of their trials and the reporting of results.
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Affiliation(s)
- G Sanclemente
- Grupo de Investigación Dermatológica (GRID), Universidad de Antioquia, Medellín, Colombia.
| | - H Pardo
- Centro Cochrane Iberoamericano, Institut d'Investigació Biomèdica Sant Pau (IIB Sant Pau), Barcelona, España
| | - S Sánchez
- Grupo de Investigación Dermatológica (GRID), Universidad de Antioquia, Medellín, Colombia
| | - X Bonfill
- Centro Cochrane Iberoamericano, Institut d'Investigació Biomèdica Sant Pau (IIB Sant Pau), CIBER Epidemiología y Salud Pública (CIBERESP), Universitat Autònoma de Barcelona, Barcelona, España
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45
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Abstract
Three-dimensional (3D) bioprinting has recently emerged as an extension of 3D material printing, by using biocompatible or cellular components to build structures in an additive, layer-by-layer methodology for encapsulation and culture of cells. These 3D systems allow for cell culture in a suspension for formation of highly organized tissue or controlled spatial orientation of cell environments. The in vitro 3D cellular environments simulate the complexity of an in vivo environment and natural extracellular matrices (ECM). This paper will focus on bioprinting utilizing hydrogels as 3D scaffolds. Hydrogels are advantageous for cell culture as they are highly permeable to cell culture media, nutrients, and waste products generated during metabolic cell processes. They have the ability to be fabricated in customized shapes with various material properties with dimensions at the micron scale. 3D hydrogels are a reliable method for biocompatible 3D printing and have applications in tissue engineering, drug screening, and organ on a chip models.
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Affiliation(s)
- M M Stanton
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569 Stuttgart, Germany.
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46
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Ciruela F, Vallano A, Cuffí ML, Carbonell L, Sánchez S, Arnau JM, Tasca C, Fernández-Dueñas V, Gómez-Soler M. Deciphering G protein-coupled receptor biology with fluorescence-based methods. Curr Pharm Biotechnol 2015; 15:962-70. [PMID: 25213309 DOI: 10.2174/1389201015666140909125119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/16/2014] [Accepted: 07/24/2014] [Indexed: 11/22/2022]
Abstract
G-protein-coupled receptors (GPCRs) represent the main family of cell surface receptors and are virtually expressed in all eukaryotic cells. Interestingly, a large number of clinically used drugs exert their pharmacological effect via a GPCR, thus it seems crucial to deeply understand the biology of these receptors. The study of GPCR activation and signaling has been classically performed by physiological, biochemical and pharmacological approaches using radioactivity-based tools. However, apart from the potential hazards of radioisotope handling and environmental burden, these approaches have some technical limitations. Therefore, the development of fluorescence-based techniques in general and fluorescence and bioluminescence resonance energy transfer (FRET and BRET) in particular have revolutionized the way to study GPCR functioning both in vitro and in vivo. Indeed, these techniques allow the characterization and visualization of all the individual GPCR signaling steps (i.e. ligand binding, receptor activation, G-protein coupling, G-protein activation, GPCR desensitization) with high temporal and spatial resolution. Here, we review the use and impact of fluorescent-based methodologies on the deciphering of GPCR biology.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Maricel Gómez-Soler
- Unitat de Farmacologia, Departament Patologia i Terapeutica Experimental, Facultat de Medicina, IDIBELL, Universitat de Barcelona, L'Hospitalet de Llobregat, 08907 Barcelona, Spain.
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Sánchez S, Cuevas M, Saleh M, García-Martín JF. Influence of solid loading on D-xylose production through dilute sulphuric acid hydrolysis of olive stones. Grasas y Aceites 2015. [DOI: 10.3989/gya.0838142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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48
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Julià A, Fernandez-Nebro A, Blanco F, González I, Cañete J, Maymό J, Alperi-Lόpez M, Fernández-Gutierrez B, Olivè A, Corominas H, Tornero J, Erra A, González A, Martínez Taboada V, Sánchez S, Acosta Colmán I, Alonso A, Lόpez-Lasanta M, Tortosa R, Marsal S. THU0010 Genome-Wide Association Study of Anti-Cyclic Citrullinated Protein-Positive Rheumatoid Arthritis Identifies a New Risk Locus in SLC8A3. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4420] [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: 11/04/2022]
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49
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Sanclemente G, Pardo H, Sánchez S, Bonfill X. Identifying Randomized Clinical Trials in Spanish-Language Dermatology Journals. Actas Dermo-Sifiliográficas (English Edition) 2015. [DOI: 10.1016/j.adengl.2015.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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50
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Stanton MM, Trichet-Paredes C, Sánchez S. Applications of three-dimensional (3D) printing for microswimmers and bio-hybrid robotics. Lab Chip 2015; 15:1634-1637. [PMID: 25632887 DOI: 10.1039/c5lc90019k] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This article will focus on recent reports that have applied three-dimensional (3D) printing for designing millimeter to micrometer architecture for robotic motility. The utilization of 3D printing has rapidly grown in applications for medical prosthetics and scaffolds for organs and tissue, but more recently has been implemented for designing mobile robotics. With an increase in the demand for devices to perform in fragile and confined biological environments, it is crucial to develop new miniaturized, biocompatible 3D systems. Fabrication of materials at different scales with different properties makes 3D printing an ideal system for creating frameworks for small-scale robotics. 3D printing has been applied for the design of externally powered, artificial microswimmers and studying their locomotive capabilities in different fluids. Printed materials have also been incorporated with motile cells for bio-hybrid robots capable of functioning by cell contraction and swimming. These 3D devices offer new methods of robotic motility for biomedical applications requiring miniature structures. Traditional 3D printing methods, where a structure is fabricated in an additive process from a digital design, and non-traditional 3D printing methods, such as lithography and molding, will be discussed.
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Affiliation(s)
- M M Stanton
- Max-Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569 Stuttgart, Germany.
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