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Salunkhe RR, O'Sullivan B, Huang SH, Su J, Xu W, Hosni A, Waldron J, Irish J, de Almeida J, Witterick I, Montero E, Gilbert RW, Razak AA, Zhang L, Brown D, Goldstein D, Gullane P, Tong L, Hahn E. Dawn of Staging for Head and Neck Soft Tissue Sarcoma: Validation of the Novel 8 th Edition AJCC T Classification and Proposed Stage Groupings. Int J Radiat Oncol Biol Phys 2023; 117:S149. [PMID: 37784378 DOI: 10.1016/j.ijrobp.2023.06.567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) After decades of stagnation, the 8th edition TNM (TNM8) introduced a new T classification for head and neck (HN) soft tissue sarcomas (STS). New size cutoffs of 2 and 4 cm define T1-3, and a novel T4 category is defined by local invasion of adjoining structures. These size cutoffs had been chosen arbitrarily to advance data collection in this unique disease site since literature showed approximately 70% of HN STS did not reach the previous size threshold (5 cm) for the existing T1 category. The definition of the TNM8 T categories also align with mucosal HN cancers. No stage grouping for HN STS was defined since this new classification required more data collection to derive stage groups. This study aims to validate the TNM8 T classification and to propose stage groupings. MATERIALS/METHODS Clinical data of all adult (>16 years) HN STS patients treated from 1988 - 2019 with curative intent in our tertiary cancer center were retrieved from a prospective database, and supplemented with chart review. As per TNM8, cutaneous angiosarcoma, embryonal and alveolar rhabdomyosarcoma, Kaposi sarcoma, and dermatofibrosarcoma protuberans were excluded due to their different behavior. Multivariate analysis (MVA) identified prognostic factors for overall survival (OS). Adjusted hazard ratios (AHR) and recursive partitioning analysis (RPA) were used to derive stage groupings. Stage grouping performance for OS was assessed and also compared against the existing TNM8 groups for non-HN STS. RESULTS A total of 221 patients (N1: 2; M1: 2) were included. Of the 219 M0 patients, 63% were males; median tumor size was 3.0 cm (range: 0.3-14.0); the proportion of TNM8 T1-T4 were 35%, 34%, 26%, and 5%, respectively. Median follow up was 5.9 years. Five-year OS was 79%. MVA confirmed the prognostic value of T category (T4 HR 7.73, 95% CI 3.62-16.5) and grade (G2/3 vs G1 HR 3.7, 95% CI 1.82-7.53), in addition to age (HR 1.03, 95% CI 1.01-1.04) (all p<0.001) for OS. AHR model derived T1-3_Grade 1 as stage 1; T1-3_Grade 2/3 as stage II; and T4_any Grade or any T_N1 as stage III (Table 1); the corresponding 5-year OS was 93%, 73%, and 38%, respectively. Both patients with M1 died within 1.5 years after diagnosis and M1 disease was designated stage IV. The AHR-grouping outperformed the RPA and non-HN TNM8 stage grouping for hazard consistency, hazard discrimination, percent variance explained, hazard difference, and sample size balance. CONCLUSION The novel T4 category introduced in TNM8 is associated with a >7 fold increased risk of death. Grade continues to be a critical prognostic factor in HN STS. The TNM8 HN STS T classifications have been validated, and the proposed new stage groupings with TNM8 incorporating grade have excellent performance for OS.
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Affiliation(s)
- R R Salunkhe
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - B O'Sullivan
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - S H Huang
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - J Su
- Department of Biostatistics, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - W Xu
- Department of Biostatistics, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - A Hosni
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - J Waldron
- Department of Radiation Oncology, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - J Irish
- Department of Otolaryngology-Head and Neck Surgery, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - J de Almeida
- Department of Otolaryngology-Head and Neck Surgery, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - I Witterick
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - E Montero
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - R W Gilbert
- Department of Otolaryngology-Head and Neck Surgery, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - A A Razak
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - L Zhang
- Mount Sinai Hospital, Toronto, ON, Canada
| | - D Brown
- Department of Otolaryngology-Head and Neck Surgery, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - D Goldstein
- Department of Otolaryngology-Head and Neck Surgery, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - P Gullane
- Department of Otolaryngology-Head and Neck Surgery, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - L Tong
- Department of Statistical Sciences, University of Toronto, Toronto, ON, Canada
| | - E Hahn
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
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Paredes-Belmar G, Montero E, Leonardini O. A milk transportation problem with milk collection centers and vehicle routing. ISA Trans 2022; 122:294-311. [PMID: 33962794 DOI: 10.1016/j.isatra.2021.04.020] [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: 04/19/2020] [Revised: 04/05/2021] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
In this work, we study, model, and propose two approaches to solve a raw milk transportation problem inspired by a real case of a milk company in Chile. The milk is produced by a set of farms scattered in a large rural area. The company must collect all the production daily using a truck fleet. We address the location of milk collection centers to reduce transportation costs. Each center has a limited capacity and a reduced truck fleet, composed of small trucks, to collect a substantial proportion of the produced milk. Once the milk is accumulated in the collection centers, a fleet of big trucks, traveling from a processing plant, collects the milk of each collection center and some large farms. We propose a mixed-integer linear programming model, a three-stage approach based on mathematical models, and an iterated local search approach to face this problem. We evaluate these approaches' performance using a small case and several real-world examples, including a clustering approach to divide the instance into small sub-instances. The results obtained for the real-world instance show improvements of up to 10% percent when milk collection centers are allowed.
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Affiliation(s)
- Germán Paredes-Belmar
- School of Industrial Engineering, Pontificia Universidad Católica de Valparaíso, Chile.
| | | | - Omar Leonardini
- Industrial Engineering Program, Universidad Andres Bello, Chile.
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León R, Soto-Delgado J, Montero E, Vargas M. Development of Computational Approaches with a Fragment-Based Drug Design Strategy: In Silico Hsp90 Inhibitors Discovery. Int J Mol Sci 2021; 22:ijms222413226. [PMID: 34948022 PMCID: PMC8706391 DOI: 10.3390/ijms222413226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/02/2021] [Accepted: 12/02/2021] [Indexed: 01/21/2023] Open
Abstract
A semi-exhaustive approach and a heuristic search algorithm use a fragment-based drug design (FBDD) strategy for designing new inhibitors in an in silico process. A deconstruction reconstruction process uses a set of known Hsp90 ligands for generating new ones. The deconstruction process consists of cutting off a known ligand in fragments. The reconstruction process consists of coupling fragments to develop a new set of ligands. For evaluating the approaches, we compare the binding energy of the new ligands with the known ligands.
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Affiliation(s)
- Roberto León
- Facultad de Ingeniería, Universidad Andres Bello, Viña del Mar 2531015, Chile; (E.M.); (M.V.)
- Correspondence: (R.L.); (J.S.-D.)
| | - Jorge Soto-Delgado
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Viña del Mar 2531015, Chile
- Correspondence: (R.L.); (J.S.-D.)
| | - Elizabeth Montero
- Facultad de Ingeniería, Universidad Andres Bello, Viña del Mar 2531015, Chile; (E.M.); (M.V.)
| | - Matías Vargas
- Facultad de Ingeniería, Universidad Andres Bello, Viña del Mar 2531015, Chile; (E.M.); (M.V.)
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Catalá-Gregori P, Montero E, Cortés V, Viana D, Sevilla-Navarro S. New vascular structure in broiler breast: breast-vessel. Poult Sci 2021; 101:101565. [PMID: 34844109 PMCID: PMC8633678 DOI: 10.1016/j.psj.2021.101565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/18/2021] [Accepted: 10/18/2021] [Indexed: 11/27/2022] Open
Abstract
Chickens intensively selected for accelerating growth rate and enhanced muscle mass has resulted in the occurrence of breast alterations with a negative consumers perception. Together with the already known breast abnormalities (White Striping, Wooden Breast and Spaghetti Meat) a new one has been described by the consumers as a "long and thin worm". For this reason, the aim of this work was to macroscopically and microscopically describe this structure in broiler breast. To this end, 2 different experiments were performed. In the first one, 4 broiler breasts from a supermarket were analysed. Thereafter, a second experiment was carried out on an experimental farm simulating field management conditions in order to confirm the results of the first experiment. To this end, 120 chickens were reared in an experimental farm up to 42 d. Breast samples were collected and analysed macroscopically and microscopically to assess the abnormality on the broiler breast. In both experiments, the results of the analysis showed the finding of tubular structures located on the surface of pectoralis major muscle compatible with arteries. So far, currently, this occurrence has not been described in the literature and we propose calling this new broiler breast feature as breast-vessel.
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Affiliation(s)
- P Catalá-Gregori
- Poultry Quality and Animal Nutrition Center of the Valencia Region (CECAV), Alquerías del Niño Perdido, Castellón 12539, Spain; Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology, Institute of Biomedical Sciences, Faculty of Veterinary Medicine, Cardenal Herrera-CEU University, 46113 Moncada, Spain.
| | - E Montero
- Biomedical Research Institute (PASAPTA-Pathology group), Faculty of Veterinary Medicine, Cardenal Herrera-CEU University, Alfara del Patriarca, Valencia 46115, Spain
| | - V Cortés
- Poultry Quality and Animal Nutrition Center of the Valencia Region (CECAV), Alquerías del Niño Perdido, Castellón 12539, Spain
| | - D Viana
- Biomedical Research Institute (PASAPTA-Pathology group), Faculty of Veterinary Medicine, Cardenal Herrera-CEU University, Alfara del Patriarca, Valencia 46115, Spain
| | - S Sevilla-Navarro
- Poultry Quality and Animal Nutrition Center of the Valencia Region (CECAV), Alquerías del Niño Perdido, Castellón 12539, Spain; Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology, Institute of Biomedical Sciences, Faculty of Veterinary Medicine, Cardenal Herrera-CEU University, 46113 Moncada, Spain
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Montero E, Puig-Pey I, Prado M, Huete L, Acemel D, Ruiz I, Banús C, Salas A, Laso J, Andreoni L. A case report: Acquired hemophilia A detected in the Laboratory of Hemostasia. Are the diagnostic algorithms necessary? Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.845] [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: 10/26/2022]
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García-Rodríguez S, Sinausia L, Barragán C, Montero E, Perona JS. A Mediterranean-style breakfast increases postprandial serum α-tocopherol levels in lean and obese individuals. Grasas y Aceites 2018. [DOI: 10.3989/gya.1225172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The aim of this study was to compare the variations in the concentrations of tocopherols and retinol in obese adults in the postprandial state after the intake of a Mediterranean or Western-style breakfast. The study was designed as a randomized, controlled intervention trial in the postprandial state, for which 24 male adults (12 obese and 12 of normalweight) were recruited. After a fat challenge, blood samples were collected at different times postprandially and α-tocopherol, γ-tocopherol and retinol concentrations were determined in serum by HPLC. The Mediterranean-style meal produced a greater increase in serum α-tocopherol levels in both obese and normal-weight subjects, compared to the Western-style meal, indicating that the composition of the food affects the concentration of tocopherols in the postprandial state. However, the serum concentrations of γ-tocopherol and retinol remained unmodified. In conclusion, the presence of α-tocopherol in the meal could contribute to the protection of the Mediterranean-style meal against atherosclerosis in the postprandial state.
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Rodríguez PC, Prada DM, Moreno E, Aira LE, Molinero C, López AM, Gómez JA, Hernández IM, Martínez JP, Reyes Y, Milera JM, Hernández MV, Torres R, Avila Y, Barrese Y, Viada C, Montero E, Hernández P. The anti-CD6 antibody itolizumab provides clinical benefit without lymphopenia in rheumatoid arthritis patients: results from a 6-month, open-label Phase I clinical trial. Clin Exp Immunol 2017; 191:229-239. [PMID: 28963724 DOI: 10.1111/cei.13061] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2017] [Indexed: 12/13/2022] Open
Abstract
Itolizumab is a humanized anti-CD6 monoclonal antibody (mAb) that has previously shown encouraging results, in terms of safety and positive clinical effects, in a 6-week monotherapy clinical trial conducted in rheumatoid arthritis (RA) patients. The current Phase I study evaluated the safety and clinical response for a longer treatment of 12 itolizumab intravenous doses in subjects with active RA despite previous disease-modifying anti-rheumatic drug (DMARD) therapy. Twenty-one subjects were enrolled into four dosage groups (0·1, 0·2, 0·4 and 0·8 mg/kg). Efficacy end-points including American College of Rheumatology (ACR)20, ACR50 and ACR70 response rates and disease activity score in 28 joints (DAS28) were monitored at baseline and at specific time-points during a 10-week follow-up period. Itolizumab was well tolerated up to the highest tested dose. No related serious adverse events were reported and most adverse events were mild. Remarkably, itolizumab treatment did not produce lymphopenia and, therefore, was not associated with infections. All patients achieved a clinical response (ACR20) at least once during the study. Eleven subjects (55%) achieved at least a 20% improvement in ACR just 1 week after the first itolizumab administration. The clinical response was observed from the beginning of the treatment and was sustained during 24 weeks. The efficacy profile of this 12-week treatment was similar to that of the previous study (6-week treatment). These results reinforce the safety profile of itolizumab and provide further evidence on the clinical benefit from the use of this anti-CD6 mAb in RA patients.
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Affiliation(s)
- P C Rodríguez
- Division of Clinical Research, Center of Molecular Immunology, Havana, Cuba
| | - D M Prada
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - E Moreno
- Facultad de Ciencias Básicas, Universidad de Medellin, Medellin, Colombia
| | - L E Aira
- Division of Clinical Research, Center of Molecular Immunology, Havana, Cuba
| | - C Molinero
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - A M López
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - J A Gómez
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - I M Hernández
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - J P Martínez
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - Y Reyes
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - J M Milera
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - M V Hernández
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - R Torres
- Service for Rheumatology, 10 de Octubre Hospital, Havana, Cuba
| | - Y Avila
- Department of Clinical Trials, National Coordinating Center of Clinical Trials, Havana, Cuba
| | - Y Barrese
- Department of Clinical Trials, National Coordinating Center of Clinical Trials, Havana, Cuba
| | - C Viada
- Division of Clinical Research, Center of Molecular Immunology, Havana, Cuba
| | - E Montero
- Experimental Immunotherapy Department, Center of Molecular Immunology, Havana, Cuba
| | - P Hernández
- Division of Clinical Research, Center of Molecular Immunology, Havana, Cuba
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Martínez-Santos P, Martín-Loeches M, García-Castro N, Solera D, Díaz-Alcaide S, Montero E, García-Rincón J. A survey of domestic wells and pit latrines in rural settlements of Mali: Implications of on-site sanitation on the quality of water supplies. Int J Hyg Environ Health 2017; 220:1179-1189. [DOI: 10.1016/j.ijheh.2017.08.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/02/2017] [Accepted: 08/02/2017] [Indexed: 12/23/2022]
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Barbero JM, Romanyk J, Vallés A, Plasencia MA, Montero E, López J. [Decolonization for Staphylococcus aureus carriers in arthroplasty surgery after hip fracture]. Rev Esp Quimioter 2017; 30:264-268. [PMID: 28585795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE Staphylococcus aureus is the main causative agent of joint prosthesis infections. The decolonization of the carriers is effective in the prevention of the infections of the elective arthroplasties. The aim of this study is to evaluate if it is also in arthroplasties after hip fracture. METHODS Study in patients with hip fracture who underwent joint prosthesis from January 2011 to December 2015 with a protocol of S. aureus detection-decolonization with intranasal mupirocin and chlorhexidine baths. Patients between January 2009 and December 2010 were the comparison group. RESULTS In the intervention period, the study of colonization of S. aureus was performed in 307 patients, of whom 87 were positive (28.3%). The study period was completed by 267 patients, of whom two developed S. aureus infection, compared to six of 138 in the control group (0.7% vs 4.3%, RR 0.1, p = 0.03). CONCLUSIONS In our study, S. aureus decolonization in patients with hip fracture decreased the incidence of joint prosthesis infection by this microorganism.
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Affiliation(s)
- J M Barbero
- José Mª Barbero Allende. Hospital Príncipe de Asturias. Alcalá de Henares, Servicio de Medicina Interna. c/ Fray Luis de León 5A, 3ºC, 28012, Madrid, Spain.
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Molina A, García-Gargallo M, Montero E, Tobías A, Sanz M, Martín C. Clinical efficacy of desensitizing mouthwashes for the control of dentin hypersensitivity and root sensitivity: a systematic review and meta-analysis. Int J Dent Hyg 2016; 15:84-94. [DOI: 10.1111/idh.12250] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2016] [Indexed: 11/30/2022]
Affiliation(s)
- A Molina
- University Complutense of Madrid; Madrid Spain
| | | | - E Montero
- University Complutense of Madrid; Madrid Spain
| | - A Tobías
- Institute of Environmental Assessment and Water Research (IDAEA); Spanish Council for Scientific Research (CSIC); Barcelona Spain
| | - M Sanz
- University Complutense of Madrid; Madrid Spain
| | - C Martín
- University Complutense of Madrid; Madrid Spain
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García-Gargallo M, Zurlohe M, Montero E, Alonso B, Serrano J, Sanz M, Herrera D. Evaluation of new chlorhexidine- and cetylpyridinium chloride-based mouthrinse formulations adjunctive to scaling and root planing: pilot study. Int J Dent Hyg 2016; 15:269-279. [PMID: 27762095 DOI: 10.1111/idh.12254] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To compare the effect of two newly formulated chlorhexidine (CHX) and cetylpyridinium chloride (CPC) mouthrinses after scaling and root planing (SRP) in terms of clinical, microbiological, patient-based variables and adverse events, with a positive control with the same active components, already marketed and tested. METHODS A pilot, randomized clinical trial, double-blind, parallel design with 1-month follow-up was conducted. Chronic periodontitis patients requiring non-surgical periodontal therapy were enrolled and randomly assigned to: (i) SRP and test-1 (new reformulation: 0.12% CHX and 0.05% CPC); (ii) SRP and test-2 (new formulation: 0.03% CHX and 0.05% CPC); or (iii) SRP and positive control (commercial product: 0.12% CHX and 0.05% CPC). All variables were evaluated at baseline and 1 month after SRP. Quantitative variables were compared by means of anova or Kruskal-Wallis test and qualitative variables by chi-square or McNemar tests. RESULTS Thirty patients (10 per group) were included. After 1 month, there were significant differences among groups in plaque levels (P = 0.016) as test-1 showed less sites with plaque than test-2 (31.15% [standard error-SE 2.21%] versus 49.39% [SE 4.60%), respectively). No significant differences were found for global patient perception of the product or in adverse effects. Test groups showed better results in levels and proportions (P = 0.022) of Capnocytophaga spp. CONCLUSIONS Within the limitations of this pilot study, it can be concluded that the newly formulated 0.12% CHX and 0.05% CPC mouthrinse showed larger plaque level reductions, without showing more adverse effects, when compared to the other two mouthrinses, after SRP.
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Affiliation(s)
- M García-Gargallo
- Section of Graduate Periodontology, Faculty of Odontology, University Complutense, Madrid, Spain
| | - M Zurlohe
- Section of Graduate Periodontology, Faculty of Odontology, University Complutense, Madrid, Spain
| | - E Montero
- Section of Graduate Periodontology, Faculty of Odontology, University Complutense, Madrid, Spain
| | - B Alonso
- Etiology and Therapy of Periodontal Diseases (ETEP) Research Group, Faculty of Odontology, University Complutense, Madrid, Spain
| | - J Serrano
- Etiology and Therapy of Periodontal Diseases (ETEP) Research Group, Faculty of Odontology, University Complutense, Madrid, Spain
| | - M Sanz
- Etiology and Therapy of Periodontal Diseases (ETEP) Research Group, Faculty of Odontology, University Complutense, Madrid, Spain
| | - D Herrera
- Etiology and Therapy of Periodontal Diseases (ETEP) Research Group, Faculty of Odontology, University Complutense, Madrid, Spain
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Barbero JM, Montero E, Vallés A, Plasencia MA, Romanyk J, Gómez J. [Prosthetic joint infection in patients with hip fracture. Differences from infection of elective prosthesis]. Rev Esp Quimioter 2016; 29:273-277. [PMID: 27464468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE Most publications about prosthetic joint infections (PJI) are referred to elective prosthesis and they exclude arthroplasties due to hip fracture. METHODS We conducted a descriptive study about prosthetic joint infections after joint fracture in Alcalá de Henares Hospital (Madrid) between 2009 and 2014 and we compared with elective prosthetic infections in the same period. RESULTS There were 30 PJI after hip fracture and 14 elective PJI. The incidence of infection was 4.7% in arthroplasties due to hip fracture from 1.3% in elective prosthesis (RR 3.8, p=0.005). The PJI after fracture affected older patients (82.5 years vs 71.5, p=0.006), with greater comorbidity (5.4 vs 3.6, p=0.003), higher anesthetic risk (ASA>2 70% vs 21.4%, p=0.004) and higher incidence of dementia (50% vs 0%, p=0.02). Staphylococcus aureus was the most common causative agent in both groups, but there was higher incidence of Gram negative-cases in PJI after fracture group (43.3% vs 21.4%, p no significance) and cefazolin-resistance (63.3% vs 28.6%, p=0.03). In logistic regression analysis the treatment had less chance of success in PJI after fracture than elective PJI (33.3% vs 78.6%, OR 0.09, p=0.06). CONCLUSIONS The PJI after fracture are more frequent than elective PJI, affect older patients, with poor general condition, are produced by more resistant bacteria and have worst evolution than EPJI.
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Affiliation(s)
- J M Barbero
- José Mª Barbero Allende, Hospital Príncipe de Asturias. Alcalá de Henares (España). Servicio de Medicina Interna. c/ Fray Luis de León 5A, 3ºC, 28012, Madrid, Spain.
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Velázquez S, Montero E, Rubio M, Ortiz M. An Emerging Method of Faster Stereotactic Body Radiation Therapy Through Stereotactic Multidampening. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2258] [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: 10/20/2022]
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Delgado-León B, Moreno J, Cacicedo J, Perez M, Moreno A, Núñez F, Delgado L, Pérez S, Praena-Fernandez J, Montero E, Nieto J, Parra C, Ortiz-Gordillo M, López-Guerra J. PO-0687: Machine learning method for biomarkers identification in lung cancer patients. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31937-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Perona JS, Cabello-Moruno R, Sinausia L, Montero E, Botham KM, Avella M. Minor components of pomace olive oil enhance VLDL-receptor expression in macrophages when treated with postprandial triglyceride-rich lipoproteins. Grasas y Aceites 2015. [DOI: 10.3989/gya.0109151] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Moreau E, Bonsergent C, Al Dybiat I, Gonzalez LM, Lobo CA, Montero E, Malandrin L. Babesia divergens apical membrane antigen-1 (BdAMA-1): A poorly polymorphic protein that induces a weak and late immune response. Exp Parasitol 2015; 155:40-5. [PMID: 25956948 DOI: 10.1016/j.exppara.2015.04.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/05/2015] [Accepted: 04/29/2015] [Indexed: 10/23/2022]
Abstract
Babesiosis is an important veterinary and zoonotic tick borne disease caused by the hemoprotozoan Babesia spp. which infects red blood cell of its vertebrate host. In order to control the infection, vaccination that targets molecules involved in the invasion process of red blood cells could provide a good alternative to chemotherapy. Among these molecules, Apical Membrane Antigen-1 (AMA-1) has been described as an excellent vaccine candidate in Plasmodium spp. In this paper, we have investigated AMA-1 of Babesia divergens (BdAMA-1) as vaccine candidate by evaluating its polymorphism and by studying the humoral response against BdAMA-1 of sheep experimentally infected with B. divergens. Polymorphism of BdAMA-1 was investigated by sequencing the corresponding gene of 9 B. divergens isolates from different geographical areas in France. Two Bdama-1 haplotypes (A and B) could be defined based on 2 non-synonymous point mutations. In silico prediction of linear epitopes revealed that the antigenicity of the 2 haplotypes is very similar. Antibody production against the extracellular domain of BdAMA-1 is weak and late, between 1 and 5 months after the inoculation of parasites. Both IgG1 and IgG2 are components of the anti-BdAMA-1 response. These results indicate that while BdAMA-1 may not be an immuno-dominant antigen, it could induce a mixed type 1 and type 2 immune response. In light of these results, the potential of BdAMA-1 as vaccine candidate is discussed.
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Affiliation(s)
- E Moreau
- Oniris, Ecole nationale vétérinaire, agroalimentaire et de l'alimentation Nantes-Atlantique, UMR Biologie, Epidémiologie et Analyse de Risque en santé animale, LUNAM Université, CS 40706, Nantes F-44307, France; UMR 1300 BioEpAR, INRA, Nantes F-44307, France.
| | - C Bonsergent
- Oniris, Ecole nationale vétérinaire, agroalimentaire et de l'alimentation Nantes-Atlantique, UMR Biologie, Epidémiologie et Analyse de Risque en santé animale, LUNAM Université, CS 40706, Nantes F-44307, France; UMR 1300 BioEpAR, INRA, Nantes F-44307, France
| | - I Al Dybiat
- Oniris, Ecole nationale vétérinaire, agroalimentaire et de l'alimentation Nantes-Atlantique, UMR Biologie, Epidémiologie et Analyse de Risque en santé animale, LUNAM Université, CS 40706, Nantes F-44307, France; UMR 1300 BioEpAR, INRA, Nantes F-44307, France
| | - L M Gonzalez
- Parasitology Department, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Majadahonda, Madrid 28220, Spain
| | - C A Lobo
- Department of Blood-Borne Parasites, Lindsley F. Kimball Research Institute, The New York Blood Center, New York, New York 10065, USA
| | - E Montero
- Parasitology Department, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, Majadahonda, Madrid 28220, Spain
| | - L Malandrin
- Oniris, Ecole nationale vétérinaire, agroalimentaire et de l'alimentation Nantes-Atlantique, UMR Biologie, Epidémiologie et Analyse de Risque en santé animale, LUNAM Université, CS 40706, Nantes F-44307, France; UMR 1300 BioEpAR, INRA, Nantes F-44307, France
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Perez-Luque S, Cacicedo J, Delgado Arroniz L, Praena-Fernandez J, Montero E, Ortiz Gordillo M, Lopez Guerra J. OC-0320: Pre-radiotherapy health related quality of life assessment associates with survival in lung cancer patients. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40318-4] [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: 11/28/2022]
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Rivero M, Montero E, Ortiz M, Velázquez S, Dorado R. EP-1359: Avoidance of radiation induced alopecia en whole brain radiotherapy treatments with simultaneous integrated boost. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41351-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sinausia L, Cabello-Moruno R, Botham K, Montero E, Perona J. Trigliceride-rich lipoproteins are taken up by macrophages differently via receptor-mediated pathways during the postprandial period. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.354] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Chopra A, Srikantiah C, Cg P, Montero E, Melarkode R. OP0027 Itolizumab, A Human Anti-Cd6 Monoclonal Antibody, for Treatment of Rheumatoid Arthritis: Results of A Randomized, Placebo Controlled, Phase 2 Study. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Correles de Acquatella G, Garcia Guevara R, Montilva R, Urdaneta de Ramos B, Rojas N, Paez A, Falcon D, Carrasquel O, Rivero M, Pachano S, Cardenas L, Mejias M, Sarache C, Montero E, Torres MA, Marval M, Mendoza C, Barrios N. BEACOPP Protocol in 60 Children with Hodgkin's Lymphoma (HL): Multicenter Experience in Venezuela. Klin Padiatr 2014. [DOI: 10.1055/s-0034-1371142] [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] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Perez-Luque S, Lopez Guerra J, Ortiz Gordillo M, Peñalver R, Praena-Fernandez J, Montero E. PD-0315: Health related quality of life before radiation therapy for patients with lung cancer. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30420-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Santofimia E, López-Pamo E, Montero E. Environmental management of Aznalcóllar mine and its influence in the hydrogeochemical of the pit lake. Water Environ Res 2013; 85:706-714. [PMID: 24003596 DOI: 10.2175/106143013x13698672323263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Since its 1995 closure and the subsequent 1998 accident, the Aznalcóllar mine pit has been used as a disposal site for diverse metal-rich materials, such as the polluted soils removed during the cleaning of areas along the Guadiamar River, waste rock, pyrite sludge, and ashes deriving from pyrite roasting. At present, the mining pit is partly flooded and contains a highly acidic (pH 2.7) pit lake with approximately 6 Mm3 of metal and sulphate-rich water. Recent detailed research performed in the area has proven that the reaction of the lake water with both the dumping mining wastes and the inflow of acid mine waters are strongly modifying the water quality of the pit lake. A major change was identified in the water quality that resulted from the dumping of 1.4 Mm3 of pyritic wastes during 2005 and 2006. The oxidative dissolution of this mineral has resulted in: (1) a total consumption of dissolved oxygen, (2) a notable increase of electric conductivity (from 8.6 to 12 mS/cm) and (3) a strong acidification (pH from 4.2 to 2.7) and an important heating that was observed as a result of the exothermic character of pyrite oxidation. Despite the total lack of oxidizing agents-such as 02 and Fe(III) (Fe[III] < 5% total Fe)-in the pit lake, pyrite is being oxidized with a continuous increase of the SO(4)2- and Fe concentrations.
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Affiliation(s)
- E Santofimia
- Instituto Geológico y Minero de España, C/ Rios Rosas, 23. 28003 Madrid, España.
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Lopez Guerra J, Montero E, Rincon I, Carrasaco M, Baeza M, Peñalver R, Praena Fernandez J, Gomez D, Liao Z, Ortiz M. Controversies in the association between radiation toxicity and TGF-BETA1 polymorphisms. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.636] [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: 10/26/2022] Open
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Riff MC, Montero E, Neveu B. Reducing calibration effort for clonal selection based algorithms: A reinforcement learning approach. Knowl Based Syst 2013. [DOI: 10.1016/j.knosys.2012.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rubio M, Montero E, Velázquez S, Mateos J. EP-1419 WBRT WITH SIB TO OLIGOMETASTASES IN THE BRAIN USING VMAT-IGRT AND A NEW AND PATENTED DEVICE FOR IMAGE FUSION. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71752-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Jara-Palomares L, Otero-Candelera R, Elias-Hernandez T, Cayuela-Dominguez A, Ferrer-Galvan M, Alfaro MJ, Montero E, Barrot-Cortes E. Dyslipidemia as a long-term marker for survival in pulmonary embolism. Rev Port Pneumol 2011; 17:205-10. [PMID: 21549676 DOI: 10.1016/j.rppneu.2011.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Accepted: 03/10/2011] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVES To analyse survival rate after 24 months in consecutive patients with a diagnosis of PE as well as associated factors. METHODS Prospective cohort study during a follow-up period of two years in a series of consecutive patients with PE. RESULTS During the follow-up period, 34 out of 148 patients died (23%). Factors independently associated with reduced survival rate were: creatinine levels > 2 (OR, 8.8; 95% CI, 1.1 - 70.87), previous neoplasm (OR, 8.8; 95% CI, 3.69 - 20.98), dementia (OR, 6.85; 95% CI, 2.1 - 22.33) and dyslipidemia (OR, 5.07; 95% CI, 1.92 - 13.44). Forty four percent of the patients with dyslipidemia died vs. 20.8% of patients without this condition. CONCLUSIONS In our study dyslipidemia shows as a long-term negative prognostic marker for survival in patients with EP.
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Affiliation(s)
- L Jara-Palomares
- Medical-Surgical Unit of Respiratory Diseases, University Hospital Virgen del Rocio, Seville, Spain.
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Nair P, Melarkode R, Rajkumar D, Montero E. CD6 synergistic co-stimulation promoting proinflammatory response is modulated without interfering with the activated leucocyte cell adhesion molecule interaction. Clin Exp Immunol 2010; 162:116-30. [PMID: 20726988 DOI: 10.1111/j.1365-2249.2010.04235.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The CD6 membrane-proximal scavenger receptor cysteine-rich domain (SRCR3) includes the activated leucocyte cell adhesion molecule (ALCAM) binding site. CD6-ALCAM mediates a low-affinity interaction and their long-term engagement contributes to the immunological synapse. Their ligation may play a dual function, facilitating stable adhesion between the antigen-presenting cells and T cells during the early activation phase and later in the proliferative phase of the immune response. This study explored the strength of the CD6 co-stimulatory effect and whether CD6 co-stimulation with its natural ligand ALCAM also contributes to the lymphocyte effector differentiation. It was found that CD6-ALCAM interaction in vitro induced a synergistic co-stimulation of normal human peripheral blood mononuclear cells, defined by Bliss analysis. CD6 co-stimulation enhanced the CD3 proliferative efficacy by 23-34%. Moreover, a fivefold increment in the CD25 molecules number with a distinct gene transcription profile associated with cell activation, differentiation, survival and adhesion molecules was observed over CD3 single activation. Additionally, CD6 co-stimulation in excess interleukin (IL)-2 promotes a preferentially proinflammatory response. Besides, a CD6 membrane-distal domain (SRCR1)-specific non-depleting monoclonal antibody (mAb) inhibited the induced proliferation in the presence of ALCAM, reducing interferon-γ, IL-6 and tumour necrosis factor-α production. These results suggest that CD6 co-stimulation enhances the intrinsic activity of the CD3 activation pathway and contributes to the T helper type 1 subset commitment, enhancing the IL-2 sensitivity of recent activated human lymphocytes. It supports the role of CD6 as a susceptibility gene for pathological autoimmunity leading to tissue inflammation, and its relevance for targeted therapy.
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Affiliation(s)
- P Nair
- Research and Development, Biocon Ltd, Bangalore, India
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Diaz Y, Gonzalez A, Lopez A, Perez R, Vazquez AM, Montero E. Anti-ganglioside anti-idiotypic monoclonal antibody-based cancer vaccine induces apoptosis and antiangiogenic effect in a metastatic lung carcinoma. Cancer Immunol Immunother 2009; 58:1117-28. [PMID: 19066887 PMCID: PMC11030083 DOI: 10.1007/s00262-008-0634-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2008] [Accepted: 11/17/2008] [Indexed: 10/21/2022]
Abstract
Anti-idiotype monoclonal antibody (mAb) 1E10 was generated by immunizing BALB/c mice with an Ab1 mAb which recognizes NeuGc-containing gangliosides, sulfatides and some tumor antigens. 1E10 mAb induces therapeutic effects in a primary breast carcinoma and a melanoma model. However, the tumor immunity mechanisms have not been elucidated. Here we show that aluminum hydroxide-precipitated 1E10 mAb immunization induced anti-metastatic effect in the 3LL-D122 Lewis Lung carcinoma, a poorly immunogenic and highly metastatic model in C57BL/6 mice. The therapeutic effect was associated to the increment of T cells infiltrating metastases, the reduction of new blood vessels formation and the increase of apoptotic tumor cells in lung nodules. Interestingly, active immunization does not induce measurable antibodies to the 1E10 mAb, the NeuGc-GM3 or tumor cells, which may suggest a different mechanism which has to be elucidated. These findings may support the relevance of this target for cancer biotherapy.
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Affiliation(s)
- Y. Diaz
- Experimental Immunotherapy Department, Center of Molecular Immunology, P.O. Box 16040, Havana, 11600 Cuba
| | - A. Gonzalez
- Experimental Immunotherapy Department, Center of Molecular Immunology, P.O. Box 16040, Havana, 11600 Cuba
| | - A. Lopez
- Experimental Immunotherapy Department, Center of Molecular Immunology, P.O. Box 16040, Havana, 11600 Cuba
| | - R. Perez
- Research and Development, Center of Molecular Immunology, Havana, Cuba
| | - A. M. Vazquez
- Antibody Engineering Department, Center of Molecular Immunology, P.O. Box 16040, Havana, 11600 Cuba
| | - E. Montero
- Experimental Immunotherapy Department, Center of Molecular Immunology, P.O. Box 16040, Havana, 11600 Cuba
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Fuentes D, Avellanet J, Garcia A, Iglesias N, Gabri MR, Alonso DF, Vazquez AM, Perez R, Montero E. Combined therapeutic effect of a monoclonal anti-idiotype tumor vaccine against NeuGc-containing gangliosides with chemotherapy in a breast carcinoma model. Breast Cancer Res Treat 2009; 120:379-89. [PMID: 19377876 DOI: 10.1007/s10549-009-0399-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Accepted: 04/02/2009] [Indexed: 11/29/2022]
Abstract
Anti-idiotypic monoclonal antibodies (mAb) have been evaluated for actively induced immunotherapy with encouraging results. However, rational combination of cancer vaccines with chemotherapy may improve the therapeutic efficacy of these two approaches used separately. The main objective of this study was to evaluate the antitumor effect of the co-administration of 1E10 (Racotumomab), a monoclonal anti-idiotype tumor vaccine against an IgM mAb, named P3 that reacts specifically with NeuGc-containing gangliosides and low-dose Cyclophosphamide in a mammary carcinoma model. F3II tumor-bearing mice were immunized subcutaneously with 100 microg of 1E10 mAb in Alum or with 150 mg/m(2) of Cyclophosphamide intravenously 7 days after the tumor inoculation. While a limited antitumor effect was induced by a single 1E10 mAb immunization; its co-administration with low-dose Cyclophosphamide reduced significantly the F3II mammary carcinoma growth. That response was comparable with the co-administration of the standard high-dose chemotherapy for breast cancer based on 60 mg/m(2) of Doxorubicin and 600 mg/m(2) of Cyclophosphamide, without toxicity signs. Combinatorial chemo-immunotherapy promoted the CD8(+) lymphocytes tumor infiltration and enhanced tumor apoptosis. Furthermore, 1E10 mAb immunization potentiated the antiangiogenic effect of low-dose Cyclophosphamide. Additionally, splenic myeloid cells Gr1(+)/CD11b(+) associated with a suppressor phenotype were significantly reduced in F3II tumor-bearing mice immunized with 1E10 mAb alone or in combination with low-dose Cyclophosphamide. This data may provide a rational for chemo-immunotherapy combinations with potential medical implications in breast cancer.
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Affiliation(s)
- D Fuentes
- National Center for Laboratory Animal Breeding, Havana, Cuba
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Noujaim H, Montero E, Ribeiro C, Gomes R, Capelozzi V, Curvello L, de Miranda M, Genzini T. ROLE OF ICAM-1 IN ISCHAEMIC/REPERFUSION INJURY WHEN USING STEATOTIC GRAFTS IN LIVER TRANPLANTS. Transplantation 2008. [DOI: 10.1097/01.tp.0000330463.10818.4a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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González LM, Villalobos N, Montero E, Morales J, Sanz RA, Muro A, Harrison LJS, Parkhouse RME, Gárate T. Differential molecular identification of Taeniid spp. and Sarcocystis spp. cysts isolated from infected pigs and cattle. Vet Parasitol 2006; 142:95-101. [PMID: 16870346 DOI: 10.1016/j.vetpar.2006.06.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2006] [Revised: 05/24/2006] [Accepted: 06/16/2006] [Indexed: 10/24/2022]
Abstract
In the present work, the species-specific identification of Taeniid spp. cysticerci and sarcocystis cysts isolated from infected pigs and cattle was achieved by PCR. In particular: (i) multiplex-PCR derived from HDP2 DNA fragment, specific for Taenia saginata/Taenia solium; (ii) PCRs and PCR-RFLPs of the rDNA internal transcribed spacers 1 and 2 (ITS1 and ITS2) for the differential diagnosis of taeniids; (iii) PCR derived from the 18S rRNA gene and sequencing, specific for Sarcoystis spp. The combined application of these three PCR protocols provided an unequivocally specific diagnosis of T. saginata, T. solium, T. hydatigena, Sarcocystis hominis and Sarcocystis suihominis, and may have practical application in the identification of calcified degenerating or morphologically dubious cysts, for example in the slaughter house situation or in human biopsy samples.
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Affiliation(s)
- L M González
- Servicio de Parasitología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28220 Majadahonda, Madrid, Spain
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Cabello-Moruno R, Perona J, Montero E, Avella M, Botham K, Ruiz-Gutierrez V. Th-P15:104 Triglyceride-rich lipoproteins derived from pomace olive oil have differential effects on the expression of MRNA for macrophage receptors. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)82064-7] [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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Kasem I, Perez-Camino M, Montero E, Perona J, Ruiz-Gutierrez V. W16-P-042 Bioavailability of minor components of orujo olive oil in the postprandial period in humans. ATHEROSCLEROSIS SUPP 2005. [DOI: 10.1016/s1567-5688(05)80438-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Perona J, Rivas-Garcia F, Sanchez-Dominguez J, Montero E, Ruiz-Gutierrez V. W16-P-068 The unsaponifiable fraction and molecular species of triglycerides from virgin olive oil affect chylomicron composition of healthy subjects. ATHEROSCLEROSIS SUPP 2005. [DOI: 10.1016/s1567-5688(05)80464-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Perona JS, Cañizares J, Montero E, Sánchez-Domínguez JM, Pacheco YM, Ruiz-Gutierrez V. Dietary virgin olive oil triacylglycerols as an independent determinant of very low-density lipoprotein composition. Nutrition 2004; 20:509-14. [PMID: 15165612 DOI: 10.1016/j.nut.2004.03.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE We examined the effects of virgin olive oil (VOO) triacylglycerols (TGs) on the lipid composition of human very low-density lipoprotein (VLDL). METHODS Twenty-one normocholesterolemic, normotensive, non-diabetic elderly subjects were recruited for the study. Two VOOs (VOO1 and VOO2) of the same variety, with an equivalent composition in minor components and differing only in the oleic and linoleic acid concentrations, were administered for 4 wk each to assess the effect of their TG molecular species compositions. Blood was collected after an overnight fast, VLDLs were isolated by ultracentrifugation, and lipid classes, TG molecular species, and TG fatty acid composition were determined. RESULTS Dietary VOOs significantly differed in TG molecular species composition. VOO1 represented larger amounts of triolein (P < 0.01), whereas VOO2 was significantly enriched with dilinoleoyl-oleoyl-glycerol, linoleoyl-dioleoyl-glycerol, and linoleoyl-oleoyl-palmitoyl-glycerol (P < 0.01). For VLDL, intake of VOO1 caused an increase of total TG (P < 0.01) due mainly to increases in triolein and linoleoyl-dioleoyl-glycerol. Conversely, VOO2 increased VLDL cholesteryl esters (P < 0.01) and TG rich in arachidonic acid (P < 0.01). CONCLUSIONS The different TG molecular species compositions of dietary oils may be an independent determinant of the lipid composition of VLDL in elderly people and therefore may play a role in regulating lipoprotein metabolism in these subjects.
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Affiliation(s)
- J S Perona
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas, Seville, Spain
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Montero E, González LM, Harrison LJS, Parkhouse RME, Gárate T. Taenia solium cDNA sequence encoding a putative immunodiagnostic antigen for human cysticercosis. J Chromatogr B Analyt Technol Biomed Life Sci 2003; 786:255-69. [PMID: 12651022 DOI: 10.1016/s1570-0232(02)00909-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A T. solium metacestode cDNA library was prepared and antibody screened to obtain recombinant antigens, which could be used for the neurocysticercosis diagnosis. The F18 clone was selected and sequenced, and the full length cDNA characterised as well as the genomic structure from the gene. F18 is a single copy gene that spans approximately 6.1 kb and contains five exons and four introns. The F18 cDNA has a 690-nucleotide open reading frame that encodes a putative polypeptide of 229 amino acids with a predicted molecular mass of 26.06 x 10(3) M(r). The F18 recombinant protein was obtained and purified by affinity chromatography using pGEX system (G-F18) and pQE system (H-F18). The purified G-F18 fusion protein showed the best results when it was used in ELISA with sera from neurocysticercosis patients.
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Affiliation(s)
- E Montero
- Instituto de Salud Carlos III, Centro Nacional de Microbiologi;a, Crta. Majadahonda Pozuelo Km 2,2, 28220 Majadahonda, Madrid, Spain
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González LM, Daniel-Mwambete K, Montero E, Rosenzvit MC, McManus DP, Gárate T, Cuesta-Bandera C. Further molecular discrimination of Spanish strains of Echinococcus granulosus. Exp Parasitol 2002; 102:46-56. [PMID: 12615166 DOI: 10.1016/s0014-4894(02)00146-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We have designed two polymerase chain reaction (PCR) primer sets (PEg9F1-PEg9R1 and PEg16F1-PEg16R1) and two PCR protocols (Eg9-PCR and Eg16-PCR) for discrimination of Echinococcus granulosus genotypes. The oligonucleotide sequences originate from two E. granulosus DNA multiplex-PCR amplification fragments, previously reported, that allows species-specific discrimination between Taenia saginata, Taenia solium, and E. granulosus. The Eg9-PCR, Eg16-PCR, and Eg9-PCR linked restriction fragment length polymorphism (RFLP) analysis was used to characterize 53 E. granulosus isolates from the central region of Spain, highly endemic for echinococcosis. The analysis resulted in: (i) the discrimination of E. granulosus from Echinococcus multilocularis; (ii) the characterisation and discrimination of discrete E. granulosus strains from Spain; and (iii) the identification of two distinct genotypes within E. granulosus Spanish pig isolates. To further characterize the genetic variants in pigs, fragments of the NADH dehydrogenase I (ND1) and the cytochrome c oxidase subunit I (CO1) genes were amplified from parasite DNA and sequenced. The results again revealed the presence of two distinct genotypes: the G1 (sheep-dog strain) and G7 (pig-dog strain) genotypes. This observation could have important consequences for human health in Spain. Furthermore, the Eg9-PCR, Eg16-PCR, and Eg9-PCR-RFLP protocols can be used as additional methods to discriminate various E. granulosus genotypes.
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Affiliation(s)
- L M González
- Instituto de Salud Carlos III, Centro Nacional de Microbiología, 28220 Majadahonda, Madrid, Spain.
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Bada A, Casacó Parada A, Arteaga M, Martínez J, León A, Santana E, Hernández O, Orphee R, González A, Mesa C, González C, Montero E, Fernández LE. Toxicity of a GM3 cancer vaccine in Macaca fascicularis monkey: a 12-month study. Hum Exp Toxicol 2002; 21:263-7. [PMID: 12141397 DOI: 10.1191/0960327102ht248oa] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
GM3 is a ganglioside that has been biochemically identified as dominating the cell surface of several human tumours, but is also found on human normal cells at much lower density. Since GM3 is widely distributed in essentially all types of animal cells, there is a conflict with the concepts of tumour-associated antigen, immunogen, and toxicity. We have designed a GM3-based cancer vaccine for the treatment of human breast and melanoma tumours. Prior to the Phase I clinical trial, we carried out a 12-month dose repeated toxicity study in five male Macaca fascicularis monkeys. Four male monkeys were treated with placebo in a similar way. During the study, no differences were observed between control and treated monkeys related to daily clinical observations (other than local damage) including rectal temperature, blood pressure, respiratory and cardiac rates, weight gain, biochemical and hematological parameters (with the exception of transitory pathological changes), and anti-DNA and anti-nuclear antibodies, although treated monkeys consistently developed both IgM- and IgG-specific anti-GM3 antibodies. Sixty per cent of treated monkeys developed moderate local reactions at the injection site, which disappeared without sequels. We concluded that this GM3 cancer vaccine overcame in monkeys the natural tolerance to GM3 ganglioside evidenced by a strong immune response, while the local reactions elicited-were transitory without apparent important systemic toxicity effects.
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Affiliation(s)
- A Bada
- Centro Nacional para la Producción de Animales de Laboratorio, Habana, Cuba
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Abstract
Epidermal growth factor (EGF) is being tried as a vaccine in cancer immunotherapy with the aim of inducing neutralizing antibodies that might affect EGF-dependent tumors. Here we summarize our experience using the EGF self-molecule as an autoimmunigen. We report here that IgG anti-EGF antibodies are prevalent in healthy people and that augmentation of the response to EGF requires conjugation to an effective carrier and an adjuvant. Paradoxically, the response to EGF immunization could be enhanced by an 'immunosuppressive' treatment with cyclophosphamide, most probably by suppressing active control mechanisms. EGF is expressed in the thymus. Thus, EGF may be added to the immunological homunculus, the class of self-antigens to which there is both natural autoimmunity and natural regulation of the autoimmunity. The results using EGF as a vaccine can teach us about the homunculus and how to activate it.
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Affiliation(s)
- G Gonzalez
- Center of Molecular Immunology, P.O.Box: 16040, Havana 11600, Cuba
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Pacheco YM, Abia R, Perona JS, Reina M, Ruiz-Gutiérrez V, Montero E, Muriana FJ. Triacylglycerol-rich lipoproteins interact with human vascular cells in a lipid-dependent fashion. J Agric Food Chem 2001; 49:5653-5661. [PMID: 11714373 DOI: 10.1021/jf010576n] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Plasma triacylglycerol-rich lipoproteins (TRL) are being considered as a key lipid fraction in the pathogenesis of atherosclerotic cardiovascular disease. Here we compared the influence of two monounsaturated oils [virgin olive oil (VOO) and high-oleic sunflower oil (HOSO)] on the capability of postprandial TRL to interact with two human vascular cell lines [umbilical vein endothelial (HUVEC) and aorta smooth muscle (HASMC) cells]. A fluorescent probe was used for labeling TRL and to determine receptor activity of HUVEC and HASMC. The values for total cell-associated, bound, and internalized TRL were higher in HUVEC, and TRL from VOO was the better ligand recognized but at lower affinity than TRL from HOSO. There was a competitive effect of very low density lipoproteins (VLDL) for the uptake of TRL by cells, which was found to be dependent on the origin/lipid composition of the ligands and cell-type specific. We also conclude that the VLDL receptor (VLDLr) may contribute significantly to the HASMC binding capacity for postprandial TRL mediated by lipoprotein lipase (LPL) or LPL-binding molecules. Our findings are compatible with a selective role of the clustered O-linked sugar domain of the VLDLr in the catabolism of TRL by human vascular cells.
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Affiliation(s)
- Y M Pacheco
- Instituto de la Grasa, CSIC, 41012 Sevilla, Spain
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Affiliation(s)
- E Montero
- Departamento de Patología, Hospital Universitario Virgen de las Nieves, Granada, Spain
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Abia R, Pacheco YM, Perona JS, Montero E, Muriana FJ, Ruiz-Gutiérrez V. The metabolic availability of dietary triacylglycerols from two high oleic oils during the postprandial period does not depend on the amount of oleic acid ingested by healthy men. J Nutr 2001; 131:59-65. [PMID: 11208939 DOI: 10.1093/jn/131.1.59] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Monounsaturated oils, virgin olive oil (VOO) and high oleic sunflower oil (HOSO) are suggested to have selective physiologic effects on humans in the fasting state. The aim of the study was to evaluate whether two oils with equal amounts of oleic acid but with different compositions of minor fatty acids and triacylglycerol molecular species (TAG) could produce different triacylglycerol-rich lipoprotein (TRL)-TAG responses in the postprandial state. Eight normolipidemic men consumed the following three meals in random order on separate occasions with 2 wk between meals: control meal, control meal plus VOO and control meal plus HOSO. Plasma total TAG and TRL-TAG were measured hourly for 7 h after ingestion. TAG and sn-2 positional fatty acids within TAG were analyzed in the TRL fraction. Plasma total TAG concentrations in response to the dietary oils did not differ. However, TRL triglyceridemia was significantly lower after VOO intake (P < 0.05). The molecular species in the TRL fraction returned toward basal levels more quickly (P < 0.05) after VOO than HOSO intake. 2-Positional fatty acid analysis demonstrated higher proportions of stearic and palmitic acids and a lower proportion of oleic acid (P < 0.05) in TRL-TAG derived from HOSO. This study shows that VOO intake results in attenuated postprandial TAG concentration and faster TRL-TAG disappearance from blood compared with HOSO, suggesting that the oleic acid content may not be the main factor affecting TAG metabolism. Minor fatty acids such as linoleic acid and the 2-positional distribution of saturated stearic and palmitic acids into the TAG molecule may be important determinants of postprandial lipemia in normolipidemic men.
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Affiliation(s)
- R Abia
- Instituto de la Grasa, Consejo Superior de Investigaciones Cientificas, 41012 Sevilla, Spain
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Abstract
The assumption that cancer immunotherapy may be based on the existence of autoreactive lymphocytes recognizing self-antigens on cancer cells, obviously opens a new opportunity. Nevertheless this analysis, relying on a recessive model of natural tolerance, limits the approach to try to activate peripheral lymphocytes, by increasing co-stimulatory signals or using modified self-antigens for immunization. Here we hypothesize that, based on emerging dominant tolerance notions in autoimmunity, it would be possible to induce a specific autoimmunity against tumor cells and arrest their growth following the removal of regulatory T cells. These immunoregulatory cells suppress available immunocompetent autoreactive cells capable of destroying tumor cells. Therefore, in order to reach a complete tumor-specific autoimmunity it is necessary to combine the T cell immunosuppression which abrogates the regulatory cells, with the cancer vaccines, which induces extensive proliferation of lymphoid cells directed towards specificities on tumor cells.
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Affiliation(s)
- E Montero
- Center of Molecular Immunology, Havana, Cuba.
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Abstract
We have designed species-specific oligonucleotides which permit the differential detection of two species of cestodes, Taenia saginata and Taenia solium. The oligonucleotides contain sequences established for two previously reported, noncoding DNA fragments cloned from a genomic library of T. saginata. The first, which is T. saginata specific (fragment HDP1), is a repetitive sequence with a 53-bp monomeric unit repeated 24 times in direct tandem along the 1, 272-bp fragment. From this sequence the two oligonucleotides that were selected (oligonucleotides PTs4F1 and PTs4R1) specifically amplified genomic DNA (gDNA) from T. saginata but not T. solium or other related cestodes and had a sensitivity down to 10 pg of T. saginata gDNA. The second DNA fragment (fragment HDP2; 3,954 bp) hybridized to both T. saginata and T. solium DNAs and was not a repetitive sequence. Three oligonucleotides (oligonucleotides PTs7S35F1, PTs7S35F2, and PTs7S35R1) designed from the sequence of HDP2 allowed the differential amplification of gDNAs from T. saginata, T. solium, and Echinococcus granulosus in a multiplex PCR, which exhibits a sensitivity of 10 pg.
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Affiliation(s)
- L M González
- Ministerio de Sanidad y Consumo, Instituto de Salud Carlos III, Centro Nacional de Microbiologia, 28220 Majadahonda, Madrid, Spain
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Abia R, Perona JS, Pacheco YM, Montero E, Muriana FJ, Ruiz-Gutiérrez V. Postprandial triacylglycerols from dietary virgin olive oil are selectively cleared in humans. J Nutr 1999; 129:2184-91. [PMID: 10573547 DOI: 10.1093/jn/129.12.2184] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The aims of the present study were to evaluate the effect of a meal rich in virgin olive oil on triacylglycerol composition of human postprandial triacylglycerol-rich lipoproteins (fraction Sf > 400), and to assess the role of the triacylglycerol molecular species concentration and polarity on lipoprotein clearance. Fasting (0 h) and postprandial blood samples were collected hourly for 7 h from eight healthy normolipidemic subjects after the ingestion of the meal. Plasma and lipoprotein triacylglycerol concentrations increased quickly over fasting values and peaked twice at 2 and 6 h during the 7-h postprandial period. The triacylglycerols in the lipoprotein fraction at 2 h generally reflected the composition of the olive oil, however, the proportions of the individualmolecular species were altered by the processes leading to their formation. Among the major triacylglycerols, the proportion of triolein (OOO; 43.6%) decreased (P < 0.05), palmitoyl-dioleoyl-glycerol (POO; 31. 1%) and stearoyl-dioleoyl-glycerol (SOO; 2.1%) were maintained and linoleoyl-dioleoyl-glycerol (LOO; 11.4%) and palmitoyl-oleoyl-linoleoyl-glycerol (POL; 4.6%) significantly increased (P < 0.05) compared with the composition of the triacylglycerols in the olive oil. Smaller amounts of endogenous triacylglycerol (0.8%), mainly constituted of the saturated myristic (14:0)and palmitic (16:0) fatty acids, were also identified. Analysis of total fatty acids suggested the presence of molecular species composed of long-chain polyunsaturated fatty acids of the (n-3) family, docosapentaenoic acid, [22:5(n-3)] and docosahexaenoic acid (DHA), [22:6(n-3)] and of the (n-6) family [arachidonic acid, [20:4(n-6)]. The fastest conversion of lipoproteins to remnants occurred from 2 to 4 h and was directly related to the concentration of the triacylglycerols in the lipoprotein particle (r = 0.9969, P < 0.05) and not with its polarity (r = 0.1769, P > 0.05). The rates of clearance were significantly different among the major triacylglycerols (OOO, POO, OOL and POL) (P < 0.05) and among the latter ones and PLL (palmitoyl-dilinoleoyl-glycerol, POS (palmitoyl-oleoyl-stearoyl-glycerol) and OLL (oleoyl-dilinoleoyl-glycerol) (P < 0.01). OOO was removed faster and was followed by POO, OOL, POL, PPO (dipalmitoyl-oleoyl-glycerol), SOO, PLL, POS and OLL.
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Affiliation(s)
- R Abia
- Instituto de la Grasa, Consejo Superior de Investigaciones Cientificas, 41012 Sevilla, Spain and Hospital Universitario Virgen del Rocío, 41013 Sevilla, Spain
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