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de la Fuente I, Manzano-Morales S, Sanz D, Prieto A, Barriuso J. Quorum sensing in bacteria: in silico protein analysis, ecophysiology, and reconstruction of their evolutionary history. BMC Genomics 2024; 25:441. [PMID: 38702600 PMCID: PMC11069264 DOI: 10.1186/s12864-024-10355-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/25/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Quorum sensing (QS) is a sophisticated cell-to-cell signalling mechanism that allows the coordination of important processes in microbial populations. The AI-1 and AI-2 autoinducer systems are among the best characterized bacterial QS systems at the genetic level. RESULTS In this study, we present data derived from in silico screening of QS proteins from bacterial genomes available in public databases. Sequence analyses allowed identifying candidate sequences of known QS systems that were used to build phylogenetic trees. Eight categories were established according to the number of genes from the two major QS systems present in each genome, revealing a correlation with specific taxa, lifestyles or metabolic traits. Many species had incomplete QS systems, encoding the receptor protein but not the biosynthesis of the quorum sensing molecule (QSMs). Reconstruction of the evolutionary history of the LuxR family and prediction of the 3D structure of the ancestral protein suggested their monomeric configuration in the absence of the signal molecule and the presence of a cavity for its binding. CONCLUSIONS Here we correlate the taxonomic affiliation and lifestyle of bacteria from different genera with the QS systems encoded in their genomes. Moreover, we present the first ancestral reconstruction of the LuxR QS receptors, providing further insight in their evolutionary history.
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Affiliation(s)
- Iñigo de la Fuente
- Centro de Investigaciones Biológicas (CIB Margarita Salas), Department of Microbial and Plant Biotechnology, Consejo Superior de Investigaciones Científicas (CSIC), Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Saioa Manzano-Morales
- Centro de Investigaciones Biológicas (CIB Margarita Salas), Department of Microbial and Plant Biotechnology, Consejo Superior de Investigaciones Científicas (CSIC), Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - David Sanz
- Centro de Investigaciones Biológicas (CIB Margarita Salas), Department of Microbial and Plant Biotechnology, Consejo Superior de Investigaciones Científicas (CSIC), Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Alicia Prieto
- Centro de Investigaciones Biológicas (CIB Margarita Salas), Department of Microbial and Plant Biotechnology, Consejo Superior de Investigaciones Científicas (CSIC), Ramiro de Maeztu 9, Madrid, 28040, Spain
| | - Jorge Barriuso
- Centro de Investigaciones Biológicas (CIB Margarita Salas), Department of Microbial and Plant Biotechnology, Consejo Superior de Investigaciones Científicas (CSIC), Ramiro de Maeztu 9, Madrid, 28040, Spain.
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Sanz D, Ângelo DF, Marques R, Maffia F, Cardoso HJ. F-Chin/Feminizing the Chin: A Genioplasty Technique with Virtual Planning for Male-to-Female Transgender Patients. Aesthetic Plast Surg 2024:10.1007/s00266-024-03880-y. [PMID: 38448601 DOI: 10.1007/s00266-024-03880-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/26/2024] [Indexed: 03/08/2024]
Abstract
The chin is an essential structure in facial harmony and an important gender marker. Advancing a receding chin is fundamental to improve the facial appearance, particularly in male-to-female transgender patients. However, in patients with microgenia and/or retrognathia, desiring a more feminine appearance, a chin advancement can result in a wider, square shape; an undesirable effect. Genioplasty is a versatile procedure used in facial feminization surgery that allows modifying the natural anatomy of the chin in all three spatial dimensions. The technique herein described proposes a simple genioplasty procedure for feminizing the chin (F-chin genioplasty) in transgender patients where anteroposterior advance is required. Virtual planning was used to establish the landmarks for an anteroposterior advancement with transverse reduction in the chin. A perpendicular line to the Frankfurt plane passing through the incisal edge of the upper central incisor was used to plan the anteroposterior movement, and two vertical lines on the outer wall of the nasal cavity for the chin transverse measurement. The authors present three case reports with the F-chin genioplasty transgender technique with satisfactory results, ensuring a more feminine facial appearance.Level of Evidence V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- David Sanz
- Instituto Português da Face, Lisbon, Portugal
| | - David Faustino Ângelo
- Instituto Português da Face, Lisbon, Portugal
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Marinha Grande, Portugal
- Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | | | - Francesco Maffia
- Instituto Português da Face, Lisbon, Portugal
- Maxillofacial Surgery Unit, Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples "Federico II", Via Sergio Pansini 5, 80131, Naples, Italy
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Rodríguez-Maroto JJ, García-Alonso S, Rojas E, Sanz D, Ibarra I, Pérez-Pastor R, Pujadas M, Hormigo D, Sánchez J, Moreno PM, Sánchez M, Kılıc D, Williams PI. Characterization of PAHs bound to ambient ultrafine particles around runways at an international airport. Chemosphere 2024; 352:141440. [PMID: 38368961 DOI: 10.1016/j.chemosphere.2024.141440] [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: 11/20/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/20/2024]
Abstract
The impact of airport activities on air quality, is not sufficiently documented. In order to better understand the magnitude and properly assess the sources of emissions in the sector, it is necessary to establish databases with real data on those pollutants that could have the greatest impact on both health and the environment. Particulate matter (PM), especially ultrafine particles, are a research priority, not only because of its physical properties, but also because of its ability to bind highly toxic compounds such as polycyclic aromatic hydrocarbons (PAHs). Samples of PM were collected in the ambient air around the runways at Barajas International Airport (Madrid, Spain) during October, November and December 2021. Samples were gathered using three different sampling systems and analysed to determine the concentration of PAHs bound to PM. A high-volume air sampler, a Berner low-pressure impactor, and an automated off-line sampler developed in-house were used. The agreement between the samplers was statistically verified from the PM and PAH results. The highest concentration of PM measured was 31 μg m-3, while the concentration of total PAH was 3 ng m-3, both comparable to those recorded in a semi-urban area of Madrid. The PAHs showed a similar profile to the particle size distribution, with a maximum in the 0.27-0.54 μm size range, being preferentially found in the submicron size fractions, with more than 84% and around 15-20% associated to UFPs. It was found that the ratio [PAHs(m)/PM(m)] was around 10-4 in the warmer period (October), whereas it more than doubled in the colder months (November-December). It is significant the shift in the relative distribution of compounds within these two periods, with a notable increase in the 5 and 6 ring proportions in the colder period. This increase was probably due to the additional contribution of other external sources, possibly thermal and related to combustion processes, as supported by the PAH diagnostic ratios.
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Affiliation(s)
- J J Rodríguez-Maroto
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, 28040, Spain.
| | - S García-Alonso
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, 28040, Spain
| | - E Rojas
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, 28040, Spain
| | - D Sanz
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, 28040, Spain
| | - I Ibarra
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, 28040, Spain
| | - R Pérez-Pastor
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, 28040, Spain
| | - M Pujadas
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, 28040, Spain
| | - D Hormigo
- Instituto Nacional de Técnica Aeroespacial (INTA), Torrejón de Ardoz, 28850, Spain
| | - J Sánchez
- Instituto Nacional de Técnica Aeroespacial (INTA), Torrejón de Ardoz, 28850, Spain
| | - P M Moreno
- Instituto Nacional de Técnica Aeroespacial (INTA), Torrejón de Ardoz, 28850, Spain
| | - M Sánchez
- Instituto Nacional de Técnica Aeroespacial (INTA), Torrejón de Ardoz, 28850, Spain
| | - D Kılıc
- DEES and University of Manchester, Manchester, M13 9PL, UK
| | - P I Williams
- DEES and University of Manchester, Manchester, M13 9PL, UK; NCAS, University of Manchester, Manchester, M13 9PL, UK
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Mandavia R, Parmar D, Ahmed MN, Berber V, Sanz D, Paulucci B, D'Souza AR. An Overview of Rhinoplasty Practices: European Academy of Facial Plastic Surgery, Collaborative Cross-Sectional Study. Facial Plast Surg 2024; 40:31-35. [PMID: 36787791 DOI: 10.1055/a-2034-8397] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
This collaborative European Academy of Plastic Surgery (EAFPS) study aimed to provide an overview of rhinoplasty practices, informing clinician and patient decision making. It is a multicenter cross-sectional study, reported as per Strengthening the Reporting of Observational Studies in Epidemiology guidelines. All EAFPS members were contacted via email, inviting them to participate. Members expressing an interest to participate were asked to anonymously complete a questionnaire, related to rhinoplasties that they performed as first/supervising surgeon over a period from January 1, 2019 to January 1, 2022. A descriptive analysis was performed. One hundred and fifteen surgeons submitted data on 41,259 rhinoplasties from 33 countries. Eighty percent of rhinoplasties were primary, and 20% were secondary. Thirty five percent of primary rhinoplasties were closed and 65% were open. Thirty one percent of primary rhinoplasties were for cosmetic indications, 11% functional and 58% were for both. Of the 8147 secondary rhinoplasties, 44% were closed and 56% were open. Thirty percent were for cosmetic indications, 11% functional, and 59% for both cosmetic and functional. Ninety-one percent of rhinoplasties were performed by ENT surgeons, 3% by plastic surgeons, 5% by maxillofacial surgeons, and 1% were dual (maxillofacial and ENT) trained. One-thousand seven-hundred thirty primary rhinoplasties underwent revision surgery (5%) and 102 secondary rhinoplasties underwent revision surgery (1%). The most commonly reported indications for revision surgery were dorsal asymmetry, nasal blockage, and dissatisfaction with nasal tip. Three percent of rhinoplasties underwent preoperative psychological assessment. To the authors knowledge, this is the largest published rhinoplasty dataset. This study provides an overview of rhinoplasty practices that can be used for benchmarking and to guide clinician and patient decision making. Psychological assessment of prerhinoplasty appears insufficient with higher levels recommended to minimize unsuccessful outcomes. This study showcases the power of collaborative research and may serve as a catalyst for future collaborative facial plastic surgery research.
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Affiliation(s)
- R Mandavia
- Department of ENT, Head and Neck Surgery, University College London Hospitals, NHS Trust, London, United Kingdom
| | - D Parmar
- Bedfordshire Hospitals NHS Foundation Trust, Luton, United Kingdom
| | - M N Ahmed
- Queen Elizabeth Hospital, Birmingham, United Kingdom
| | - V Berber
- Department of Otolaryngology, Ege University, Izmir, Turkey
| | - D Sanz
- Miguel Servet University Hospital, Zaragoza, Spain
| | - B Paulucci
- Royal Free NHS Trust, London, United Kingdom
| | - A R D'Souza
- Department of Otolaryngology, Lewisham and Greenwich NHS Trust UK, London, United Kingdom
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Ângelo DF, Lopes CS, Sanz D, Faria-Teixeira MC, Marques R, Maffia F, Cardoso HJ. Temporomandibular Joint Minimally Invasive Procedures in the Pediatric Population: A Prospective Study. J Clin Med 2024; 13:672. [PMID: 38337365 PMCID: PMC10856328 DOI: 10.3390/jcm13030672] [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: 12/13/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024] Open
Abstract
Over recent years, temporomandibular joint (TMJ) minimally invasive procedures, such as arthrocentesis and arthroscopy, have been appointed as an initial TMJ intra-articular treatment. Both procedures present safe and effective clinical results in managing temporomandibular disorders (TMD) by reducing pain and improving mouth opening. The use of these techniques in adults is validated in the literature. However, data on the safety and effectiveness of minimally invasive TMJ interventions in pediatric patients are scarce. This study aims to investigate the effectiveness of TMJ arthrocentesis and arthroscopy in the pediatric population. A prospective study was conducted at Instituto Português da Face (IPF) in Lisbon, Portugal, including patients treated for TMD from 1 June 2019 to 30 June 2023. In the present study, 26 patients (17 female and 9 male) were included, representing a total of 48 joints operated. A statistically significant reduction was observed in the primary outcome, TMJ pain, from 3.93 ± 2.80 preoperatively (mean ± SD) to 0.50 ± 1.53 (mean ± SD) postoperatively (p < 0.05). An improvement in the secondary outcome, maximum mouth opening, from 36.92 ± 8.79 preoperatively to 42.96 ± 5.07 postoperatively, was observed (p < 0.05). The overall success rate was 84.62%. This prospective study showed that TMJ arthrocentesis and arthroscopy appear to benefit pediatric patients with TMD, significantly lowering pain and improving MMO without relevant postoperative complications.
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Affiliation(s)
- David Faustino Ângelo
- Instituto Português da Face, 1500-493 Lisboa, Portugal; (D.S.); (R.M.); (H.J.C.)
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, 2430-028 Marinha Grande, Portugal
- Faculty of Medicine, Lisboa University, 1649-028 Lisboa, Portugal; (C.S.L.); (M.C.F.-T.)
| | | | - David Sanz
- Instituto Português da Face, 1500-493 Lisboa, Portugal; (D.S.); (R.M.); (H.J.C.)
| | | | - Rute Marques
- Instituto Português da Face, 1500-493 Lisboa, Portugal; (D.S.); (R.M.); (H.J.C.)
| | - Francesco Maffia
- Instituto Português da Face, 1500-493 Lisboa, Portugal; (D.S.); (R.M.); (H.J.C.)
- Maxillofacial Surgery Unit, Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples “Federico II”, Via Sergio Pansini 5, 80131 Naples, Italy
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Ângelo DF, Mota B, Sanz D, Pimentel J. Septic arthritis of the temporomandibular joint managed with arthroscopy: a case report. Int J Oral Maxillofac Surg 2023; 52:1278-1281. [PMID: 37479607 DOI: 10.1016/j.ijom.2023.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/06/2023] [Accepted: 06/29/2023] [Indexed: 07/23/2023]
Abstract
Septic arthritis of the temporomandibular joint (SATMJ) is an uncommon bacterial or fungal infection of the joint space. A 68-year-old man with underlying diabetes mellitus and a history of liver transplant, who was on immunosuppressants, presented to the oral and maxillofacial surgery department of the authors´ institution in Portugal. His main symptoms were arthralgia in the right temporomandibular joint, malocclusion, pre-auricular swelling and erythema. After clinical, laboratory, and imaging evaluations, diagnoses of chronic suppurative otitis media and SATMJ were made. The patient was managed with arthroscopy of the right temporomandibular joint, which allowed joint fluid collection for microbiological examination, lavage, and biopsy. The biopsy sample was positive for Pseudomonas aeruginosa. After surgery, targeted intravenous antibiotic treatment (amikacin) was given for 30 days. No recurrence of any complaints was reported after 12 months of follow-up.
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Affiliation(s)
- D F Ângelo
- Instituto Português da Face, Lisbon, Portugal; Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
| | - B Mota
- Centro Hospitalar Universitário Lisboa Norte (CHUNL), Lisbon, Portugal
| | - D Sanz
- Instituto Português da Face, Lisbon, Portugal
| | - J Pimentel
- Instituto Português da Face, Lisbon, Portugal
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Mention K, Cavusoglu-Doran K, Joynt AT, Santos L, Sanz D, Eastman AC, Merlo C, Langfelder-Schwind E, Scallan MF, Farinha CM, Cutting GR, Sharma N, Harrison PT. Use of adenine base editing and homology-independent targeted integration strategies to correct the cystic fibrosis causing variant, W1282X. Hum Mol Genet 2023; 32:3237-3248. [PMID: 37649273 PMCID: PMC10656707 DOI: 10.1093/hmg/ddad143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/21/2023] [Accepted: 08/12/2023] [Indexed: 09/01/2023] Open
Abstract
Small molecule drugs known as modulators can treat ~90% of people with cystic fibrosis (CF), but do not work for premature termination codon variants such as W1282X (c.3846G>A). Here we evaluated two gene editing strategies, Adenine Base Editing (ABE) to correct W1282X, and Homology-Independent Targeted Integration (HITI) of a CFTR superexon comprising exons 23-27 (SE23-27) to enable expression of a CFTR mRNA without W1282X. In Flp-In-293 cells stably expressing a CFTR expression minigene bearing W1282X, ABE corrected 24% of W1282X alleles, rescued CFTR mRNA from nonsense mediated decay and restored protein expression. However, bystander editing at the adjacent adenine (c.3847A>G), caused an amino acid change (R1283G) that affects CFTR maturation and ablates ion channel activity. In primary human nasal epithelial cells homozygous for W1282X, ABE corrected 27% of alleles, but with a notably lower level of bystander editing, and CFTR channel function was restored to 16% of wild-type levels. Using the HITI approach, correct integration of a SE23-27 in intron 22 of the CFTR locus in 16HBEge W1282X cells was detected in 5.8% of alleles, resulting in 7.8% of CFTR transcripts containing the SE23-27 sequence. Analysis of a clonal line homozygous for the HITI-SE23-27 produced full-length mature protein and restored CFTR anion channel activity to 10% of wild-type levels, which could be increased three-fold upon treatment with the triple combination of CF modulators. Overall, these data demonstrate two different editing strategies can successfully correct W1282X, the second most common class I variant, with a concomitant restoration of CFTR function.
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Affiliation(s)
- Karen Mention
- Department of Physiology, University College Cork, College Road, Cork, T12 K8AF, Ireland
- School of Microbiology, University College Cork, College Road, Cork, T12 K8AF, Ireland
| | - Kader Cavusoglu-Doran
- Department of Physiology, University College Cork, College Road, Cork, T12 K8AF, Ireland
| | - Anya T Joynt
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States
| | - Lúcia Santos
- Department of Physiology, University College Cork, College Road, Cork, T12 K8AF, Ireland
- Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, University of Lisboa, Campo Grande, C8 bdg, Lisboa 1749-016, Portugal
| | - David Sanz
- Department of Physiology, University College Cork, College Road, Cork, T12 K8AF, Ireland
| | - Alice C Eastman
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States
| | - Christian Merlo
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins Hospital, 1800 Orleans St, Baltimore, MD 21287, United States
| | - Elinor Langfelder-Schwind
- The Cystic Fibrosis Center, Lenox Hill Hospital, 100 E. 77th Street, 4E, New York, NY 10075, United States
| | - Martina F Scallan
- School of Microbiology, University College Cork, College Road, Cork, T12 K8AF, Ireland
| | - Carlos M Farinha
- Faculty of Sciences, BioISI - Biosystems & Integrative Sciences Institute, University of Lisboa, Campo Grande, C8 bdg, Lisboa 1749-016, Portugal
| | - Garry R Cutting
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States
| | - Neeraj Sharma
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States
| | - Patrick T Harrison
- Department of Physiology, University College Cork, College Road, Cork, T12 K8AF, Ireland
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Ângelo DF, Sanz D, Cardoso HJ. Effectiveness of double-puncture temporomandibular joint arthrocentesis with viscosupplementation in different categories of severity - a prospective study. J Craniomaxillofac Surg 2023; 51:659-667. [PMID: 37852891 DOI: 10.1016/j.jcms.2023.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 08/16/2023] [Accepted: 09/30/2023] [Indexed: 10/20/2023] Open
Abstract
This 3-year prospective study evaluated the efficacy of temporomandibular joint (TMJ) arthrocentesis with viscosupplementation in different severity stages based on the Dimitroulis classification (categories 2-4 were included). TMJ arthrocentesis was performed under local anaesthesia, and the protocol consisted of a double-puncture technique with lavage of ≥150 cc Ringer Lactate plus viscosupplementation. Incobotulinum toxin A was administered 10-15 days preoperatively in patients with concomitant masticatory myalgia. The primary outcome was TMJ pain, assessed by visual analogue scale (VAS, 0-10), and the secondary outcomes were the maximum mouth opening (MMO, mm) and myalgia degree (0-3). All outcomes were assessed on the intervention day (T0) and after the procedure (T1) (minimum 1 month and then 3 months, 6 months, 1 year and every year since). A total of 108 patients were enrolled (mean age of 43.1 ± 18.9 years); 86 (80%) were women and 22 (20%) were men. Preoperative pain was 4.02 ± 3.12 (mean ± SD), MMO was 38.10 ± 9.56 (mean ± SD) and myalgia degree was 1.80 ± 1.18 (mean ± SD). After an average of 215.4 days (31-1253 days), a statistically significant improvement of pain (P < 0.0001), MMO (P = 0.005) and myalgia degree (P < 0.0001) was observed. The overall successful outcome of TMJ arthrocentesis with viscosupplementation was 76%. The authors observed increased arthrocentesis effectiveness and success rate with viscosupplementation in Dimitroulis category 2 (88.6%) compared to 3-4 (71.4%). An association was found between arthrocentesis with viscosupplementation failure and painful myalgia (ρ = 0.477; P < 0.0001). Thirteen patients (12%) underwent a second TMJ intervention after finalising the present trial. With a low complication rate, TMJ arthrocentesis with viscosupplementation led to an overall benefit for all the included patients. This study reinforces the important role of minimally invasive TMJ arthrocentesis as a first treatment option, with better results in the early stages compared to more severe stages.
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Affiliation(s)
- David Faustino Ângelo
- Instituto Português da Face, Lisboa, Portugal; Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Portugal; Faculty of Medicine of Lisboa University, Portugal.
| | - David Sanz
- Instituto Português da Face, Lisboa, Portugal
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Ângelo DF, Maffia F, Teschke M, Sanz D, Galrito M, Cardoso H, Marques R, Nabuco C. Considerations for the Use of Alloplastic Temporomandibular Joint Replacement in Irradiated Patients: Report of an Off-Label Indication. J Clin Med 2023; 12:6612. [PMID: 37892750 PMCID: PMC10607587 DOI: 10.3390/jcm12206612] [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: 09/11/2023] [Revised: 10/04/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Custom-made alloplastic temporomandibular joint replacement (ATMJR) is not validated in irradiated patients. However, in specific situations, after previous reconstructive surgical failures, the authors hypothesized the role of a customized ATMJR after radiotherapy. METHODS A 65-year-old male patient was referred to Instituto Português da Face-Lisbon, Portugal-after failed attempts of mandibular reconstruction secondary to oral carcinoma resection and partial hemi-mandibulectomy plus radiotherapy of 60 total Grays. Primary reconstruction was performed with fibula free flap. Due to failure, secondary reconstructions were performed with osteosynthesis plate without success. The patient was unable to have adequate mastication and deglutition due to a severe crossbite. The authors treated the patient with an extended customized alloplastic temporomandibular joint replacement (F0M2). RESULTS With 3 years of follow-up, the patient showed an improvement in masticatory function, mandibular motion, pain levels, and overall quality of life. No complications were observed related to ATMJR. CONCLUSIONS The presented case described how ATMJR, although not a validated option after radiotherapy, can be considered to restore functionality in complex cases with bone and soft tissues problems.
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Affiliation(s)
- David Faustino Ângelo
- Instituto Português da Face, 1050-227 Lisbon, Portugal; (D.S.); (M.G.); (H.C.); (R.M.); (C.N.)
- Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, 2430-028 Marinha Grande, Portugal
| | - Francesco Maffia
- Instituto Português da Face, 1050-227 Lisbon, Portugal; (D.S.); (M.G.); (H.C.); (R.M.); (C.N.)
- Maxillofacial Surgery Unit, Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples “Federico II”, 80131 Naples, Italy
| | | | - David Sanz
- Instituto Português da Face, 1050-227 Lisbon, Portugal; (D.S.); (M.G.); (H.C.); (R.M.); (C.N.)
| | - Marta Galrito
- Instituto Português da Face, 1050-227 Lisbon, Portugal; (D.S.); (M.G.); (H.C.); (R.M.); (C.N.)
| | - Henrique Cardoso
- Instituto Português da Face, 1050-227 Lisbon, Portugal; (D.S.); (M.G.); (H.C.); (R.M.); (C.N.)
| | - Rute Marques
- Instituto Português da Face, 1050-227 Lisbon, Portugal; (D.S.); (M.G.); (H.C.); (R.M.); (C.N.)
| | - Carlos Nabuco
- Instituto Português da Face, 1050-227 Lisbon, Portugal; (D.S.); (M.G.); (H.C.); (R.M.); (C.N.)
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Ângelo DF, Sanz D, Cardoso HJ. Bilateral arthroscopy of the temporomandibular joint: clinical outcomes and the role of a second intervention-a prospective study. Clin Oral Investig 2023; 27:6167-6176. [PMID: 37632580 DOI: 10.1007/s00784-023-05233-6] [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: 05/18/2023] [Accepted: 08/21/2023] [Indexed: 08/28/2023]
Abstract
OBJECTIVE Evaluate the efficacy of bilateral temporomandibular joint (TMJ) arthroscopy in patients with different categories of severity based on Dimitroulis classification (categories 2-4) and the role of a second TMJ intervention in primary failure. METHODS A 3-year prospective study was designed, including patients submitted to bilateral TMJ arthroscopy. The primary outcome was TMJ pain (VAS, 0-10) and the secondary outcomes were the maximum mouth opening (MMO) and masticatory myalgia degree (0-3). In cases of symptomatic relapse, a second TMJ intervention was performed (TMJ arthrocentesis or TMJ open surgery). RESULTS Eighty patients (93.4% women) were enrolled, with a mean age of 32.40 ± 11.41 years. With an average follow-up of 523.7 days (34-1606), a statistically significant improvement in TMJ pain, MMO, and myalgia degree was observed (P < 0.0001). The overall successful outcome of one-single bilateral arthroscopy was ~ 69%. Twenty-two patients relapsed: (1) arthralgia (n = 15, 68.18%); (2) arthralgia + myalgia (n = 4, 18.18%); (3) dislocated disc without reduction (DDwoR) (n = 2, 9.09%); (4) DDwoR + osteoarthrosis (OA) (n = 1, 4.55%). Arthralgia was re-managed with TMJ arthrocentesis with local anesthesia (n = 19, 86.36%). New DDwoR with or without OA was re-treated with TMJ open surgery (n = 3, 13.64%). After the second intervention, the success rate increased to 85%. CONCLUSIONS Bilateral TMJ arthroscopy presented overall benefit in all parameters evaluated. CLINICAL RELEVANCE This study highlights the importance of TMJ arthroscopy as the first line of treatment for moderate-severe temporomandibular disorders cases contributing to the reduction of TMJ open surgeries. In cases of arthroscopy unsuccess, TMJ arthrocentesis under local anesthesia was an effective and safe intervention for patients with recurrent TMJ arthralgia.
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Affiliation(s)
- David Faustino Ângelo
- Instituto Português da Face, Rua Tomás Ribeiro, nº71, 5º andar, 1150-227, Lisboa, Portugal.
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, 2430-028, Marinha Grande, Portugal.
- Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028, Lisboa, Portugal.
| | - David Sanz
- Instituto Português da Face, Rua Tomás Ribeiro, nº71, 5º andar, 1150-227, Lisboa, Portugal
| | - Henrique José Cardoso
- Instituto Português da Face, Rua Tomás Ribeiro, nº71, 5º andar, 1150-227, Lisboa, Portugal
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Ângelo DF, Sanz D, Maffia F, Cardoso HJ. Outcomes of IncobotulinumtoxinA Injection on Myalgia and Arthralgia in Patients Undergoing Temporomandibular Joint Arthroscopy: A Randomized Controlled Trial. Toxins (Basel) 2023; 15:376. [PMID: 37368677 PMCID: PMC10302210 DOI: 10.3390/toxins15060376] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Several studies have considered Botulinum Neurotoxin Type A injections effective in treating temporomandibular joint disorder (TMD) symptoms. A double-blind, randomized, controlled clinical trial investigated the benefit of complementary incobotulinumtoxinA (inco-BoNT/A) injections in the masticatory muscles of patients submitted to bilateral temporomandibular joint (TMJ) arthroscopy. METHODS Fifteen patients with TMD and an indication for bilateral TMJ arthroscopy were randomized into inco-BoNT/A (Xeomin, 100 U) or placebo groups (saline solution). Injections were carried out five days before TMJ arthroscopy. The primary outcome variable was a Visual Analogue Scale for TMJ arthralgia, and secondary outcomes were the myalgia degree, maximum mouth opening, and joint clicks. All outcome variables were assessed preoperatively (T0) and postoperatively (T1-week 5; T2-6-month follow-up). RESULTS At T1, the outcomes in the inco-BoNT/A group were improved, but not significantly more than in the placebo group. At T2, significant improvements in the TMJ arthralgia and myalgia scores were observed in the inco-BoNT/A group compared to the placebo. A higher number of postoperative reinterventions with further TMJ treatments were observed in the placebo group compared to inco-BoNT/A (63% vs. 14%). CONCLUSIONS In patients submitted to TMJ arthroscopy, statistically significant long-term differences were observed between the placebo and inco-BoNT/A groups.
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Affiliation(s)
- David Faustino Ângelo
- Instituto Português da Face, 1050-227 Lisboa, Portugal (H.J.C.)
- Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, 2430-028 Marinha Grande, Portugal
- Clínica Universitária de Estomatologia, Centro Hospitalar Universitário Lisboa Norte-Hospital de Santa Maria, 1649-028 Lisboa, Portugal
| | - David Sanz
- Instituto Português da Face, 1050-227 Lisboa, Portugal (H.J.C.)
| | - Francesco Maffia
- Instituto Português da Face, 1050-227 Lisboa, Portugal (H.J.C.)
- Maxillofacial Surgery Unit, Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples “Federico II”, Via Sergio Pansini 5, 80131 Naples, Italy
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Ângelo DF, Mota B, João RS, Sanz D, Cardoso HJ. Prevalence of Clinical Signs and Symptoms of Temporomandibular Joint Disorders Registered in the EUROTMJ Database: A Prospective Study in a Portuguese Center. J Clin Med 2023; 12:jcm12103553. [PMID: 37240658 DOI: 10.3390/jcm12103553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/11/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Temporomandibular joint disorders (TMDs) are characterized by their multifactorial etiology and pathogenesis. A 3-year prospective study was conducted in a Portuguese TMDs department to study the prevalence of different TMDs signs and symptoms and their association with risk factors and comorbidities. Five hundred ninety-five patients were included using an online database: EUROTMJ. Most patients were female (80.50%), with a mean age of 38.20 ± 15.73 years. The main complaints were: (1) temporomandibular joint (TMJ) clicking (13.26%); (2) TMJ pain (12.49%); (3) masticatory muscle tension (12.15%). The main clinical findings were myalgia (74%), TMJ clicking (60-62%), and TMJ arthralgia (31-36%). Risk factors such as clenching (60%) and bruxism (30%) were positively associated with TMJ pain and myalgia. Orthodontic treatment (20%) and wisdom tooth removal (19%) were positively associated with TMJ clicking, while jaw trauma (6%), tracheal intubation (4%) and orthognathic surgery (1%) were positively associated with TMJ crepitus, limited mandibular range of motion, and TMJ pain, respectively. In total, 42.88% of TMDs patients had other associated chronic diseases, most of them were mental behavioral or neurodevelopmental disorders (33.76%), namely, anxiety (20%) and depression (13%). The authors also observed a positive association of mental disorders with the degree of TMJ pain and myalgia. The online database seems to be a relevant scientific instrument for healthcare providers who treat TMDs. The authors expect that the EUROTMJ database can serve as a milestone for other TMDs departments.
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Affiliation(s)
- David Faustino Ângelo
- Instituto Português da Face, 1050-227 Lisboa, Portugal
- Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Beatriz Mota
- Serviço de Estomatologia, Centro Hospitalar Universitário Lisboa Norte (CHULN), 1649-035 Lisboa, Portugal
| | - Ricardo São João
- Department of Computer Science and Quantitative Methods, School of Management and Technology, Polytechnic Institute of Santarém, 2001-904 Santarém, Portugal
- CEAUL-Centro de Estatística e Aplicações, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - David Sanz
- Instituto Português da Face, 1050-227 Lisboa, Portugal
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Gómez-Delgado M, Camps-Font O, Luz L, Sanz D, Mercade M. Update on citric acid use in endodontic treatment: a systematic review. Odontology 2023; 111:1-19. [PMID: 36220913 DOI: 10.1007/s10266-022-00744-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 05/29/2022] [Accepted: 09/02/2022] [Indexed: 01/06/2023]
Abstract
This systematic review aims to analyse the available evidence concerning the use of citric acid (CA) in endodontics treatment and to assess its results in terms of different considerations: effect on smear layer removal, influence on sealer bond strength, activation effect by means of sonic or ultrasonic devices, effects on dentine surface, antibacterial activity, and effectiveness boost for regenerative procedures, releasing growth factors from dentin. To evaluate the results of CA as a final irrigant and compare them to other chelating agents. This review followed the PRISMA checklist. An electronic search was conducted in MEDLINE (OVID), Scopus (Elsevier) and the Web of Science (Thomson Reuters) databases. Risk of bias of included studies was evaluated using the modified CONSORT checklist and the PRIRATE checklist 2020 guidelines. 39 studies fulfilled the eligibility criteria to be included in this review: 27 in vitro studies using extracted human teeth, 10 in vitro studies using human dentin disks, and 2 RCT. Citric acid has proven to be effective in smear layer removal, showing better results in coronal and middle root thirds, improving its effect when combined with manual dynamic activation. There is no agreement regarding citric acid effect on sealer adhesion and adaptation to root canal walls due to heterogeneity within studies. Citric acid irrigation can decrease dentine microhardness and cause decalcification and erosion, especially when used before NaOCl. Citric acid has proven to be beneficial in regenerative endodontic procedures due to higher TGF-β1 release.Trial registration: Prospero database CRD42021267055.
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Affiliation(s)
- M Gómez-Delgado
- Department of Dentistry, Universitat de Barcelona, Barcelona, Spain
| | - O Camps-Font
- Department of Dentistry, Universitat de Barcelona, Barcelona, Spain
| | - L Luz
- Postgraduate Program in Endodontics, University of Rio Grande Do Sul, Porto Alegre, Brazil
| | - D Sanz
- Department of Dentistry, Universitat de Barcelona, Barcelona, Spain
| | - M Mercade
- Department of Dentistry, Universitat de Barcelona, Barcelona, Spain. .,IDIBELL Institute, C/Feixa Llarga S/N, Hospitalet de Llobregat, 08907, Barcelona, Spain.
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Sanz D, Díaz E. Genetic characterization of the cyclohexane carboxylate degradation pathway in the denitrifying bacterium Aromatoleum sp. CIB. Environ Microbiol 2022; 24:4987-5004. [PMID: 35768954 PMCID: PMC9795900 DOI: 10.1111/1462-2920.16093] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/01/2022] [Indexed: 12/30/2022]
Abstract
The alicyclic compound cyclohexane carboxylate (CHC) is anaerobically degraded through a peripheral pathway that converges with the central benzoyl-CoA degradation pathway of aromatic compounds in Rhodopseudomonas palustris (bad pathway) and some strictly anaerobic bacteria. Here we show that in denitrifying bacteria, e.g. Aromatoleum sp. CIB strain, CHC is degraded through a bad-ali pathway similar to that reported in R. palustris but that does not share common intermediates with the benzoyl-CoA degradation pathway (bzd pathway) of this bacterium. The bad-ali genes are also involved in the aerobic degradation of CHC in strain CIB, and orthologous bad-ali clusters have been identified in the genomes of a wide variety of bacteria. Expression of bad-ali genes in strain CIB is under control of the BadR transcriptional repressor, which was shown to recognize CHC-CoA, the first intermediate of the pathway, as effector, and whose operator region (CAAN4 TTG) was conserved in bad-ali clusters from Gram-negative bacteria. The bad-ali and bzd pathways generate pimelyl-CoA and 3-hydroxypimelyl-CoA, respectively, that are metabolized through a common aab pathway whose genetic determinants form a supraoperonic clustering with the bad-ali genes. A synthetic bad-ali-aab catabolic module was engineered and it was shown to confer CHC degradation abilities to different bacterial hosts.
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Affiliation(s)
- David Sanz
- Department of Microbial and Plant BiotechnologyCentro de Investigaciones Biológicas Margarita Salas‐CSICMadridSpain
| | - Eduardo Díaz
- Department of Microbial and Plant BiotechnologyCentro de Investigaciones Biológicas Margarita Salas‐CSICMadridSpain
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15
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Ângelo DF, Wang Y, Morouço P, Monje F, Mónico L, González-Garcia R, Moura C, Alves N, Sanz D, Gao J, Sousa R, Neto L, Faísca P, Salvado F, López Peña M, Permuy M, Munñoz F. A randomized controlled preclinical trial on 3 interposal temporomandibular joint disc implants: TEMPOJIMS-Phase 2. J Tissue Eng Regen Med 2021; 15:852-868. [PMID: 34323386 DOI: 10.1002/term.3230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 05/31/2021] [Accepted: 07/22/2021] [Indexed: 01/03/2023]
Abstract
The effort to develop an effective and safe temporomandibular joint (TMJ) disc substitute has been one of the mainstreams of tissue engineering. Biodegradable customized scaffolds could approach safety and effectiveness to regenerate a new autologous disc, rather than using non-biodegradable materials. However, it is still technically challenging to mimic the biomechanical properties of the native disc with biodegradable polymers. In this study, new 3D tailored TMJ disc implants were developed: (1) Poly(glycerol sebacate) (PGS) scaffold reinforced with electrospun Poly(εcaprolactone) (PCL) fibers on the outer surface (PGS+PCL); (2) PCL and polyethylene glycol diacrylate (PEGDA) (PCL+PEGDA); and (3) PCL. The TMJ implants were tested in a randomized preclinical trial, conducted in 24 black Merino sheep TMJ, perfoming bilateral interventions. Histologic, imaging, and kinematics analysis was performed. No statistical changes were observed between the PGS+PCL disc and the control group. The PCL+PEGDA and PCL groups were associated with statistical changes in histology (p = 0.004 for articular cartilage mid-layer; p = 0.019 for structure changes and p = 0.017 for cell shape changes), imaging (p = 0.027 for global appreciation) and dangerous material fragmentation was observed. No biomaterial particles were observed in the multi-organ analysis in the different groups. The sheep confirmed to be a relevant animal model for TMJ disc surgery and regenerative approaches. The PCL and PCL+PEGDA discs presented a higher risk to increase degenerative changes, due to material fragmentation. None of the tested discs regenerate a new autologous disc, however, PGS+PCL was safe, demonstrated rapid resorption, and was capable to prevent condyle degenerative changes.
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Affiliation(s)
- David Faustino Ângelo
- Instituto Português da Face, Lisboa, Portugal.,Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal.,Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | | | | | - Florencio Monje
- Complejo Hospitalario Universitario de Badajoz, Badajoz, Spain
| | | | | | - Carla Moura
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - Nuno Alves
- Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Leiria, Portugal
| | - David Sanz
- Instituto Português da Face, Lisboa, Portugal
| | - Jin Gao
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Rita Sousa
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Lia Neto
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Pedro Faísca
- Gulbenkian Institute of Science, Oeiras, Portugal
| | | | | | - Maria Permuy
- University of Santiago de Compostela-Lugo Campus, Lugo, Spain
| | - Fernando Munñoz
- University of Santiago de Compostela-Lugo Campus, Lugo, Spain
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Ângelo DF, Cardoso HJ, Sanz D. Synovial entrapment in alloplastic temporomandibular joint replacement. Int J Oral Maxillofac Surg 2021; 50:1628-1631. [PMID: 34112570 DOI: 10.1016/j.ijom.2021.05.022] [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: 02/12/2021] [Revised: 04/10/2021] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
Complications of alloplastic temporomandibular joint (TMJ) prostheses can lead to stress and anxiety for the patient and the surgical team, and prosthesis substitution is sometimes required. The aim of this case report is to describe the surgical finding of synovial entrapment with interposed fibrosis in a postoperative alloplastic TMJ revision, managed effectively with adequate surgical debridement. The authors believe that synovial entrapment needs to be considered as a possible postoperative complication of total joint replacement when no clear symptoms of infection, metal hypersensitivity, osteolysis, or heterotopic bone formation are present. The implications of synovial entrapment in TMJ alloplastic replacement remains relatively unpredictable and poorly understood.
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Affiliation(s)
- D F Ângelo
- Instituto Português da Face, Lisboa, Portugal; Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
| | - H J Cardoso
- Instituto Português da Face, Lisboa, Portugal
| | - D Sanz
- Instituto Português da Face, Lisboa, Portugal
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Razquin P, Sanz D, Marco A, Carrascón V, Andaluz S, Soler L, Antón A, Mata L. Validation of the Eclipse Farm 4G & COMET for Detection of Antibiotics in Raw Bovine Milk: AOAC Performance Tested MethodSM 022101. J AOAC Int 2021; 104:1289-1297. [PMID: 33909888 DOI: 10.1093/jaoacint/qsab061] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 04/14/2021] [Indexed: 11/14/2022]
Abstract
BACKGROUND The Eclipse Farm 4 G test coupled to the COMET device allows for automatic and easy screening of a broad range of antimicrobials in raw bovine milk. All results obtained with this system are available in real-time through a smartphone application (App) and in the Test4all cloud platform. OBJECTIVE The objective of this study was to validate Eclipse Farm 4 G & COMET for the screening of antimicrobials in raw bovine milk according to AOAC Performance Tested MethodSM procedures. METHOD The test is based on the inhibition of microbial growth of Geobacillus stearothermophilus in presence of antimicrobials. When sample tubes are incubated in the absence of antibiotics, spores germinate and cells grow changing medium color from purple to yellow (negative result). The presence of antimicrobials in the milk sample hinders bacterial growth preventing the tubes from changing color from purple to yellow (positive result). The COMET device automatically integrates all assay steps (incubation, time control, and results interpretation) and communications between device, smartphone, and cloud. RESULTS LODs and detection capabilities (CCβs) were confirmed to be at or below the EU-MRL for most of the evaluated molecules representing the main families of antimicrobials (penicillins, cephalosporins, tetracyclines, sulfonamides, macrolides, and aminoglycosides). False positive rate and the effect of potentially interfering substances showed sufficient selectivity/specificity. Eclipse Farm 4 G & COMET was shown to be robust, consistent and stable during shelf life. CONCLUSIONS The Eclipse Farm 4 G & COMET system has been shown to be suitable for screening antibiotics in raw bovine milk. HIGHLIGHTS The assay is an automatic and easy system for the detection of a broad range of antibiotics in raw bovine milk consistent with EU-MRLs and can provide results anytime and anywhere through a smartphone App and a cloud platform.
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Affiliation(s)
- Pedro Razquin
- Zeulab S.L. Calle Bari 25 dpdo, 50197, Zaragoza, Spain
| | - David Sanz
- Zeulab S.L. Calle Bari 25 dpdo, 50197, Zaragoza, Spain
| | - Adrián Marco
- Zeulab S.L. Calle Bari 25 dpdo, 50197, Zaragoza, Spain
| | | | - Sofía Andaluz
- Zeulab S.L. Calle Bari 25 dpdo, 50197, Zaragoza, Spain
| | - Lourdes Soler
- Zeulab S.L. Calle Bari 25 dpdo, 50197, Zaragoza, Spain
| | | | - Luis Mata
- Zeulab S.L. Calle Bari 25 dpdo, 50197, Zaragoza, Spain
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Ângelo DF, Moreira A, Sanz D, São João R. Hearing changes after temporomandibular joint arthroscopy: a prospective study. Int J Oral Maxillofac Surg 2021; 50:1491-1495. [PMID: 33714614 DOI: 10.1016/j.ijom.2021.02.013] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 12/23/2020] [Accepted: 02/06/2021] [Indexed: 01/20/2023]
Abstract
Temporomandibular Joint (TMJ) arthroscopy is considered an effective and safe minimally invasive surgical approach. While the long-term outcomes of arthroscopy tend to be positive and free of secondary effects, patients occasionally complain about their hearing following the treatment. The aim of this prospective study was to investigate possible hearing changes associated with TMJ arthroscopy. Pure-tone audiograms were performed in patients two weeks before TMJ arthroscopy and repeated six weeks after intervention. A total of 15 patients (mean age of 41.73±16.36) were enrolled; 25 TMJ arthroscopies were performed (five unilateral and ten bilateral). Statistically significant differences were found between preoperative and postoperative audiograms in the frequencies 256Hz (P=0.011) and 8kHz (P=0.058, borderline). For the frequency 256Hz the difference was favourable, but not superior to 5dB. For the frequency 8kHz, in three patients the TMJ arthroscopy resulted in a decrease of 10dB. However, no clinical hearing changes or complaints were observed in the involved patients. No differences in audiograms between level 1 or 2 arthroscopy were observed. The study reinforces the safety of the TMJ arthroscopy level 1 and 2 with the reported protocol. The authors recommend larger studies to validate the results, specially for frequency 8kHz.
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Affiliation(s)
- D F Ângelo
- Instituto Português da Face, Lisbon, Portugal; Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
| | - A Moreira
- Gabinetes Auditivos Portugueses, Lisbon, Portugal
| | - D Sanz
- Instituto Português da Face, Lisbon, Portugal
| | - R São João
- Centro de Estatística e Aplicações, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal; Department of Computer Science and Quantitative Methods, School of Management and Technology, Polytechnic Institute of Santarém, Portugal
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Ângelo DF, Araújo RAD, Sanz D. Surgical complications related to temporomandibular joint arthroscopy: a prospective analysis of 39 single-portal versus 43 double-portal procedures. Int J Oral Maxillofac Surg 2021; 50:1089-1094. [PMID: 33495103 DOI: 10.1016/j.ijom.2020.07.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/04/2020] [Accepted: 07/21/2020] [Indexed: 10/22/2022]
Abstract
Temporomandibular joint (TMJ) arthroscopy is a minimally invasive surgical procedure proposed for diverse TMJ intra-articular disorders. A prospective study was designed with the aim of investigating intraoperative and postoperative surgical complications for single and double-portal TMJ arthroscopy. All interventions were performed by one surgeon with the same surgical protocol. A total of 55 patients were enrolled, resulting in 82 TMJ arthroscopies (28 unilateral and 27 bilateral). A total of 39 single portal (47.57%) and 43 double-portal (52.43%) arthroscopies were performed. No severe and irreversible complications were observed. Most complications were resolved after 4 weeks. Double-portal was associated with more complications (n=23) compared with single-portal TMJ arthroscopy (n=14), with a statistically significant difference found between single and double-portal TMJ arthroscopy in two intraoperative complications: intra-articular bleeding (P=0.044) and oedema of the preauricular area (P=0.042). This study confirms the safety of TMJ arthroscopy for single and double-portal procedures, with the authors suggesting a multicentre study, in an effort to minimize any possible bias.
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Affiliation(s)
- D F Ângelo
- Instituto Português da Face, Lisboa, Portugal; Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
| | | | - D Sanz
- Instituto Português da Face, Lisboa, Portugal
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Silva M, Francisco I, Sanz D, Palmeira L, Vale F. Negative social comparisons and social discomfort in dentofacial deformity: a cross-sectional study. Minerva Dent Oral Sci 2020. [PMID: 32872765 DOI: 10.23736/s0026-4970.20.04412-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Patients with severe dentofacial deformities are more susceptible to psychological distress since they are more likely to be emotionally unstable, less sociable and have higher levels of anxiety and neuroticism. The aim of this study was to assess the relationship between dentofacial deformity, negative social comparisons, anxiety and discomfort in social situations due to face appearance in two independent samples. METHODS The sample consisted of 136 patients (group A: 90 college students; group B: 46 patients with dentofacial dysmorphosis that require orthognathic surgery). The impact of dentofacial deformity was evaluated through the following questionnaires: scale of social comparison through the appearance of the face and the scale of anxiety and discomfort in social situations due to the appearance of the face. RESULTS Group B showed higher levels of anxiety and discomfort than the college student's sample (P=0.004). Individuals with dentofacial dysmorphosis presented a greater degree of anxiety and discomfort than individuals without dentofacial dysmorphosis (P=0.002). Finally, skeletal pattern and social comparison predicted anxiety and discomfort in the group A (F [1.88]=7.270; P<0.05], but only social comparison emerged as a significant predictor of anxiety and discomfort in the group B (F [2, 42]=4.463; P<0.05). CONCLUSIONS Patients with dentofacial deformity have higher levels of anxiety and discomfort. This deformity can be reduced with orthodontic-surgical treatment, which can promote improvements in social and interpersonal well-being.
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Affiliation(s)
- Maria Silva
- Faculty of Medicine of the University of Coimbra, Coimbra, Portugal
| | - Inês Francisco
- Institute of Orthodontics, Faculty of Medicine of the University of Coimbra, Coimbra, Portugal
| | - David Sanz
- Department of Maxillofacial Surgery, University Hospital of Coimbra, Coimbra, Portugal
| | - Lara Palmeira
- Center for Research in Neuropsychology and Cognitive and Behavioral Intervention - CINEICC, Faculty of Psychology and Education Sciences, University of Coimbra, Coimbra, Portugal
| | - Francisco Vale
- Institute of Orthodontics, Faculty of Medicine of the University of Coimbra, Coimbra, Portugal -
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Silva M, Francisco I, Sanz D, Palmeira L, Vale F. Negative social comparisons and social discomfort in dentofacial deformity: a cross-sectional study. Minerva Dent Oral Sci 2020; 70:88-94. [PMID: 32872765 DOI: 10.23736/s2724-6329.20.04412-x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Patients with severe dentofacial deformities are more susceptible to psychological distress since they are more likely to be emotionally unstable, less sociable and have higher levels of anxiety and neuroticism. The aim of this study was to assess the relationship between dentofacial deformity, negative social comparisons, anxiety and discomfort in social situations due to face appearance in two independent samples. METHODS The sample consisted of 136 patients (group A: 90 college students; group B: 46 patients with dentofacial dysmorphosis that require orthognathic surgery). The impact of dentofacial deformity was evaluated through the following questionnaires: scale of social comparison through the appearance of the face and the scale of anxiety and discomfort in social situations due to the appearance of the face. RESULTS Group B showed higher levels of anxiety and discomfort than the college student's sample (P=0.004). Individuals with dentofacial dysmorphosis presented a greater degree of anxiety and discomfort than individuals without dentofacial dysmorphosis (P=0.002). Finally, skeletal pattern and social comparison predicted anxiety and discomfort in the group A (F [1.88]=7.270; P<0.05], but only social comparison emerged as a significant predictor of anxiety and discomfort in the group B (F [2, 42]=4.463; P<0.05). CONCLUSIONS Patients with dentofacial deformity have higher levels of anxiety and discomfort. This deformity can be reduced with orthodontic-surgical treatment, which can promote improvements in social and interpersonal well-being.
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Affiliation(s)
- Maria Silva
- Faculty of Medicine of the University of Coimbra, Coimbra, Portugal
| | - Inês Francisco
- Institute of Orthodontics, Faculty of Medicine of the University of Coimbra, Coimbra, Portugal
| | - David Sanz
- Department of Maxillofacial Surgery, University Hospital of Coimbra, Coimbra, Portugal
| | - Lara Palmeira
- Center for Research in Neuropsychology and Cognitive and Behavioral Intervention - CINEICC, Faculty of Psychology and Education Sciences, University of Coimbra, Coimbra, Portugal
| | - Francisco Vale
- Institute of Orthodontics, Faculty of Medicine of the University of Coimbra, Coimbra, Portugal -
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22
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Sanz D, García JL, Díaz E. Expanding the current knowledge and biotechnological applications of the oxygen-independent ortho-phthalate degradation pathway. Environ Microbiol 2020; 22:3478-3493. [PMID: 32510798 DOI: 10.1111/1462-2920.15119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/31/2020] [Accepted: 06/03/2020] [Indexed: 11/29/2022]
Abstract
ortho-Phthalate derives from industrially produced phthalate esters, which are massively used as plasticizers and constitute major emerging environmental pollutants. The pht pathway for the anaerobic bacterial biodegradation of o-phthalate involves its activation to phthaloyl-CoA followed by decarboxylation to benzoyl-CoA. Here, we have explored further the pht peripheral pathway in denitrifying bacteria and shown that it requires also an active transport system for o-phthalate uptake that belongs to the poorly characterized class of TAXI-TRAP transporters. The construction of a fully functional pht cassette combining both catabolic and transport genes allowed to expand the o-phthalate degradation ecological trait to heterologous hosts. Unexpectedly, the pht cassette also allowed the aerobic conversion of o-phthalate to benzoyl-CoA when coupled to a functional box central pathway. Hence, the pht pathway may constitute an evolutionary acquisition for o-phthalate degradation by bacteria that thrive either in anoxic environments or in environments that face oxygen limitations and that rely on benzoyl-CoA, rather than on catecholic central intermediates, for the aerobic catabolism of aromatic compounds. Finally, the recombinant pht cassette was used both to screen for functional aerobic box pathways in bacteria and to engineer recombinant biocatalysts for o-phthalate bioconversion into sustainable bioplastics, e.g., polyhydroxybutyrate, in plastic recycling industrial processes.
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Affiliation(s)
- David Sanz
- Department of Microbial and Plant Biotechnology, Centro de Investigaciones Biológicas Margarita Salas-CSIC, Madrid, Spain
| | - José L García
- Department of Microbial and Plant Biotechnology, Centro de Investigaciones Biológicas Margarita Salas-CSIC, Madrid, Spain
| | - Eduardo Díaz
- Department of Microbial and Plant Biotechnology, Centro de Investigaciones Biológicas Margarita Salas-CSIC, Madrid, Spain
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23
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Blay G, Castilla A, Sanz D, Sanz-Marco A, Vila C, Muñoz MC, Pedro JR. Enantioselective zinc-mediated conjugate alkynylation of saccharin-derived 1- aza-butadienes. Chem Commun (Camb) 2020; 56:9461-9464. [DOI: 10.1039/d0cc04221h] [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: 11/21/2022]
Abstract
Diethylzinc and a bis(hydroxyl)malonamide ligand allow the first conjugate alkynylation of α,β-unsaturated imines. Excellent enatioselectivities are obtained with aliphatic alkynes.
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Affiliation(s)
- Gonzalo Blay
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - Alvaro Castilla
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - David Sanz
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - Amparo Sanz-Marco
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - Carlos Vila
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada
- Universitat Politècnica de València
- E-46022 València
- Spain
| | - José R. Pedro
- Departament de Química Orgànica
- Facultat de Química, Universitat de València
- 46100 Burjassot
- Spain
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24
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Boullosa-Falces D, García S, Sanz D, Trueba A, Gomez-Solaetxe MA. CUSUM chart method for continuous monitoring of antifouling treatment of tubular heat exchangers in open-loop cooling seawater systems. Biofouling 2020; 36:73-85. [PMID: 31985280 DOI: 10.1080/08927014.2020.1715954] [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] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 01/02/2020] [Accepted: 01/05/2020] [Indexed: 06/10/2023]
Abstract
A CUSUM chart method is presented as an alternative tool for continuous monitoring of an electromagnetic field-based (EMF) antifouling (AF) treatment of a heat exchanger cooled by seawater. During an initial experimental phase, biofilm growth was allowed in a heat exchanger formed of four tubes until sufficient growth had been established. In two of the tubes, continuous EMF treatment was then applied. The heat transfer resistance and heat duty (heat transfer per unit time) results showed that biofilm adhesion was reduced by the EMF treatment. EMF treatments resulted in a 35% improvement in the heat transfer resistance values. The proposed CUSUM chart method showed that the EMF treatment increased the useful life of the heat exchanger by ∼20 days. Thus, CUSUM charts proved to be an efficient tool for continuous monitoring of an AF treatment using data collected online and can also be used to reduce operation and maintenance costs.
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Affiliation(s)
- David Boullosa-Falces
- Department of Nautical Sciences and Marine Systems Engineering, University of the Basque Country UPV/EHU, Portugalete, Spain
| | - Sergio García
- Department of Sciences & Techniques of Navigation and Ship Construction, University of Cantabria, Santander, Spain
| | - David Sanz
- Department of Sciences & Techniques of Navigation and Ship Construction, University of Cantabria, Santander, Spain
| | - Alfredo Trueba
- Department of Sciences & Techniques of Navigation and Ship Construction, University of Cantabria, Santander, Spain
| | - Miguel Angel Gomez-Solaetxe
- Department of Nautical Sciences and Marine Systems Engineering, University of the Basque Country UPV/EHU, Portugalete, Spain
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25
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De la Gala F, Piñeiro P, Reyes A, Simón C, Vara E, Rancan L, Huerta LJ, Gonzalez G, Benito C, Muñoz M, Grande P, Paredes SD, Aznar PT, Perez A, Martinez D, Higuero F, Sanz D, De Miguel JP, Cruz P, Olmedilla L, Lopez Gil E, Duque P, Sanchez-Pedrosa G, Valle M, Garutti I. Effect of intraoperative paravertebral or intravenous lidocaine versus control during lung resection surgery on postoperative complications: A randomized controlled trial. Trials 2019; 20:622. [PMID: 31694684 PMCID: PMC6836654 DOI: 10.1186/s13063-019-3677-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 08/24/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Use of minimally invasive surgical techniques for lung resection surgery (LRS), such as video-assisted thoracoscopy (VATS), has increased in recent years. However, there is little information about the best anesthetic technique in this context. This surgical approach is associated with a lower intensity of postoperative pain, and its use has been proposed in programs for enhanced recovery after surgery (ERAS). This study compares the severity of postoperative complications in patients undergoing LRS who have received lidocaine intraoperatively either intravenously or via paravertebral administration versus saline. METHODS/DESIGN We will conduct a single-center randomized controlled trial involving 153 patients undergoing LRS through a thoracoscopic approach. The patients will be randomly assigned to one of the following study groups: intravenous lidocaine with more paravertebral thoracic (PVT) saline, PVT lidocaine with more intravenous saline, or intravenous remifentanil with more PVT saline. The primary outcome will be the comparison of the postoperative course through Clavien-Dindo classification. Furthermore, we will compare the perioperative pulmonary and systemic inflammatory response by monitoring biomarkers in the bronchoalveolar lavage fluid and blood, as well as postoperative analgesic consumption between the three groups of patients. We will use an ANOVA to compare quantitative variables and a chi-squared test to compare qualitative variables. DISCUSSION The development of less invasive surgical techniques means that anesthesiologists must adapt their perioperative management protocols and look for anesthetic techniques that provide good analgesic quality and allow rapid rehabilitation of the patient, as proposed in the ERAS protocols. The administration of a continuous infusion of intravenous lidocaine has proven to be useful and safe for the management of other types of surgery, as demonstrated in colorectal cancer. We want to know whether the continuous administration of lidocaine by a paravertebral route can be substituted with the intravenous administration of this local anesthetic in a safe and effective way while avoiding the risks inherent in the use of regional anesthetic techniques. In this way, this technique could be used in a safe and effective way in ERAS programs for pulmonary resection. TRIAL REGISTRATION EudraCT, 2016-004271-52; ClinicalTrials.gov, NCT03905837 . Protocol number IGGFGG-2016 version 4.0, 27th April 2017.
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Affiliation(s)
- Francisco De la Gala
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Patricia Piñeiro
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
| | - Almudena Reyes
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Carlos Simón
- Department Thoracic Surgery, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Elena Vara
- Biochemical Department, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Lisa Rancan
- Biochemical Department, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Luis Javier Huerta
- Department Thoracic Surgery, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Guillermo Gonzalez
- Department Thoracic Surgery, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Carmen Benito
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Marta Muñoz
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Pilar Grande
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Sergio D Paredes
- Biochemical Department, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Pablo Tomas Aznar
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Alvaro Perez
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - David Martinez
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Fernando Higuero
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - David Sanz
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Juan Pedro De Miguel
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Patricia Cruz
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Luis Olmedilla
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Elena Lopez Gil
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Patricia Duque
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | | | - Mayte Valle
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Ignacio Garutti
- Department Anesthesiology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
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26
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Fernández S, Boscá A, Pedrós J, Inés A, Fernández M, Arnedo I, González JP, de la Cruz M, Sanz D, Molinero A, Singh Fandan R, Pampillón MÁ, Calle F, Gandía JJ, Cárabe J, Martínez J. Advanced Graphene-Based Transparent Conductive Electrodes for Photovoltaic Applications. Micromachines (Basel) 2019; 10:mi10060402. [PMID: 31212971 PMCID: PMC6631650 DOI: 10.3390/mi10060402] [Citation(s) in RCA: 12] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/11/2019] [Accepted: 06/11/2019] [Indexed: 11/18/2022]
Abstract
New architectures of transparent conductive electrodes (TCEs) incorporating graphene monolayers in different configurations have been explored with the aim to improve the performance of silicon-heterojunction (SHJ) cell front transparent contacts. In SHJ technology, front electrodes play an important additional role as anti-reflectance (AR) coatings. In this work, different transparent-conductive-oxide (TCO) thin films have been combined with graphene monolayers in different configurations, yielding advanced transparent electrodes specifically designed to minimize surface reflection over a wide range of wavelengths and angles of incidence and to improve electrical performance. A preliminary analysis reveals a strong dependence of the optoelectronic properties of the TCEs on (i) the order in which the different thin films are deposited or the graphene is transferred and (ii) the specific TCO material used. The results shows a clear electrical improvement when three graphene monolayers are placed on top on 80-nm-thick ITO thin film. This optimum TCE presents sheet resistances as low as 55 Ω/sq and an average conductance as high as 13.12 mS. In addition, the spectral reflectance of this TCE also shows an important reduction in its weighted reflectance value of 2–3%. Hence, the work undergone so far clearly suggests the possibility to noticeably improve transparent electrodes with this approach and therefore to further enhance silicon-heterojunction cell performance. These results achieved so far clearly open the possibility to noticeably improve TCEs and therefore to further enhance SHJ contact-technology performance.
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Affiliation(s)
- Susana Fernández
- CIEMAT, División de Energías Renovables, Avda. Complutense 40, 28040 Madrid, Spain.
| | - Alberto Boscá
- Instituto de Sistemas Optoelectrónicos y Microtecnología, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
- Departamento de Ingeniería Electrónica, E.T.S.I de Telecomunicación, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
| | - Jorge Pedrós
- Instituto de Sistemas Optoelectrónicos y Microtecnología, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
- Departamento de Ingeniería Electrónica, E.T.S.I de Telecomunicación, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
| | - Andrea Inés
- Das-Nano, Polígono Industrial Talluntxe, Calle M-10, Tajonar, 31192 Navarra, Spain.
| | - Montserrat Fernández
- Das-Nano, Polígono Industrial Talluntxe, Calle M-10, Tajonar, 31192 Navarra, Spain.
| | - Israel Arnedo
- Das-Nano, Polígono Industrial Talluntxe, Calle M-10, Tajonar, 31192 Navarra, Spain.
- Departamento Ingeniería Eléctrica, Electrónica y de Comunicación, Universidad Pública de Navarra, Campus Arrosadía, 31006 Pamplona, Spain.
| | - José Pablo González
- CIEMAT, División de Energías Renovables, Avda. Complutense 40, 28040 Madrid, Spain.
| | - Marina de la Cruz
- CIEMAT, División de Energías Renovables, Avda. Complutense 40, 28040 Madrid, Spain.
| | - David Sanz
- CIEMAT, Departamento de Electrónica, Avda. Complutense 40, 28040 Madrid, Spain.
| | - Antonio Molinero
- CIEMAT, Departamento de Electrónica, Avda. Complutense 40, 28040 Madrid, Spain.
| | - Rajveer Singh Fandan
- Instituto de Sistemas Optoelectrónicos y Microtecnología, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
- Departamento de Ingeniería Electrónica, E.T.S.I de Telecomunicación, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
| | - María Ángela Pampillón
- Instituto de Sistemas Optoelectrónicos y Microtecnología, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
- Departamento de Ingeniería Electrónica, E.T.S.I de Telecomunicación, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
| | - Fernando Calle
- Instituto de Sistemas Optoelectrónicos y Microtecnología, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
- Departamento de Ingeniería Electrónica, E.T.S.I de Telecomunicación, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
| | - José Javier Gandía
- CIEMAT, División de Energías Renovables, Avda. Complutense 40, 28040 Madrid, Spain.
| | - Julio Cárabe
- CIEMAT, División de Energías Renovables, Avda. Complutense 40, 28040 Madrid, Spain.
| | - Javier Martínez
- Instituto de Sistemas Optoelectrónicos y Microtecnología, Universidad Politécnica de Madrid, Avda. Complutense 30, 28040 Madrid, Spain.
- Departamento de Ciencia de Materiales, E.T.S.I de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, C/ Profesor Aranguren s/n, 28040 Madrid, Spain.
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Pun A, Sanz D, Bernal JA, Ibanez B. P4750Cardiomyocyte-specific overexpression of the beta-3-adrenergic receptor prevents and rescues heart failure in a model of pressure overload. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Pun
- National Centre for Cardiovascular Research (CNIC), Madrid, Spain
| | - D Sanz
- European University of Madrid, Madrid, Spain
| | - J A Bernal
- National Centre for Cardiovascular Research (CNIC), Madrid, Spain
| | - B Ibanez
- National Centre for Cardiovascular Research (CNIC), Madrid, Spain
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Durante-Rodríguez G, Gómez-Álvarez H, Blázquez B, Fernández-Llamosas H, Martín-Moldes Z, Sanz D, Nogales J, Carmona M, Díaz E. Chapter 13. Anaerobic Pathways for the Catabolism of Aromatic Compounds. Energy and Environment Series 2018. [DOI: 10.1039/9781788010351-00333] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Ibarra I, Aragón G, Gómez I, Múgica I, González J, Rodríguez Maroto J, Rojas E, Sanz D, Ramos R, Escalada R, Borjabad E, Gutiérrez-Canas C. Blend design tools for Medium Combustion Plants (MCP) firing biomass wastes. Waste Manag 2018; 71:200-214. [PMID: 29126820 DOI: 10.1016/j.wasman.2017.10.052] [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: 05/18/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 06/07/2023]
Abstract
A feasible alternative for agricultural or forestry waste management is the operation of a distributed network of sustainable Medium Combustion Plants (MCPs). However, one of the main factors that hinder its development is the propensity to operational problems derived from corrosion, slagging and fouling characteristics of both bottom and fly ashes. Therefore, a cost-effective approach for these multi-product MCP could be based on predictive tools for an optimal formulation of a fuel blend. This work focuses on the assessment of the ability of these methods to provide guidance for preventing ash-related operational problems and to provide fuel-blending rules. The more widespread tools pertain to two types: compositional classification based on chemical analysis of laboratory ashes, and thermodynamic prediction of the most likely species and phases. Both criterion numbers and compositional maps are ranking methods based on the chemical analysis at a given ashing temperature. Thermodynamic equilibrium modeling is not constrained by any difference in the physical conditions of the MCP compared to those in the laboratory. Both kind of prediction tools have been validated in an MCP firing olive tree pruning residues as well as its typical blends in order to mimic a plausible pattern of fuels along a full year operating campaign. An intensive experimental campaign encompasses plant monitoring and off-line analysis of the ashes along the process line. Interpretation of compositional plots has revealed to be potentially sensitive to ashing temperature. Here are presented examples showing how this variable could lead to either insignificant differences or to a substantial disparity in the a priori fuel diagnosis. Some inconsistencies have been observed between the predictions based on criterion numbers, even for the same fuel and for ranking rules specifically formulated for biomasses. Moreover, it does not match consistently with the information obtained from phase diagrams. Therefore, their use should be limited to the case of a well-established selection of a fuel index for a well-defined fuel provided empirical evidence of an enough good description of the ash behavior, which is not the most frequent case. Thermodynamic equilibrium calculations allow a more precise prediction of the main species in the condensed phase, without the constraint of the ashing temperature. Elemental closure of main ash-forming elements with the chemical analysis of the process ashes presents small differences, and their proximity localization on the phase diagrams denote similar prediction between predicted and process ashes.
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Affiliation(s)
- I Ibarra
- Dpt. Chem. & Environ. Eng., University of the Basque Country UPV/EHU, Alda. de Urquijo s/n, 48013 Bilbao, Spain.
| | - G Aragón
- Dpt. Chem. & Environ. Eng., University of the Basque Country UPV/EHU, Alda. de Urquijo s/n, 48013 Bilbao, Spain
| | - I Gómez
- Dpt. Chem. & Environ. Eng., University of the Basque Country UPV/EHU, Alda. de Urquijo s/n, 48013 Bilbao, Spain
| | - I Múgica
- Dpt. Chem. & Environ. Eng., University of the Basque Country UPV/EHU, Alda. de Urquijo s/n, 48013 Bilbao, Spain
| | - J González
- Dpt. Chem. & Environ. Eng., University of the Basque Country UPV/EHU, Alda. de Urquijo s/n, 48013 Bilbao, Spain
| | | | - E Rojas
- CIEMAT Avda. Complutense 40, 28040 Madrid, Spain
| | - D Sanz
- CIEMAT Avda. Complutense 40, 28040 Madrid, Spain
| | - R Ramos
- CEDER-CIEMAT, Autovía de Navarra A15, Salida 56, 42290 Lubia, Soria, Spain
| | - R Escalada
- CEDER-CIEMAT, Autovía de Navarra A15, Salida 56, 42290 Lubia, Soria, Spain
| | - E Borjabad
- CEDER-CIEMAT, Autovía de Navarra A15, Salida 56, 42290 Lubia, Soria, Spain
| | - C Gutiérrez-Canas
- Dpt. Chem. & Environ. Eng., University of the Basque Country UPV/EHU, Alda. de Urquijo s/n, 48013 Bilbao, Spain
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30
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Vale F, Scherzberg J, Cavaleiro J, Sanz D, Caramelo F, Maló L, Marcelino JP. 3D virtual planning in orthognathic surgery and CAD/CAM surgical splints generation in one patient with craniofacial microsomia: a case report. Dental Press J Orthod 2017; 21:89-100. [PMID: 27007767 PMCID: PMC4816591 DOI: 10.1590/2177-6709.21.1.089-100.oar] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 07/28/2015] [Indexed: 11/22/2022] Open
Abstract
Objective: In this case report, the feasibility and precision of tridimensional (3D) virtual planning in one patient with craniofacial microsomia is tested using Nemoceph 3D-OS software (Software Nemotec SL, Madrid, Spain) to predict postoperative outcomes on hard tissue and produce CAD/CAM (Computer Aided Design/Computer Aided Manufacturing) surgical splints. Methods: The clinical protocol consists of 3D data acquisition of the craniofacial complex by cone-beam computed tomography (CBCT) and surface scanning of the plaster dental casts. The ''virtual patient'' created underwent virtual surgery and a simulation of postoperative results on hard tissues. Surgical splints were manufactured using CAD/CAM technology in order to transfer the virtual surgical plan to the operating room. Intraoperatively, both CAD/CAM and conventional surgical splints are comparable. A second set of 3D images was obtained after surgery to acquire linear measurements and compare them with measurements obtained when predicting postoperative results virtually. Results: It was found a high similarity between both types of surgical splints with equal fitting on the dental arches. The linear measurements presented some discrepancies between the actual surgical outcomes and the predicted results from the 3D virtual simulation, but caution must be taken in the analysis of these results due to several variables. Conclusions: The reported case confirms the clinical feasibility of the described computer-assisted orthognathic surgical protocol. Further progress in the development of technologies for 3D image acquisition and improvements on software programs to simulate postoperative changes on soft tissue are required.
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Affiliation(s)
- Francisco Vale
- Department of Orthodontics, Faculty of Dentistry, Universidade de Coimbra, Coimbra, Portugal
| | - Jessica Scherzberg
- Department of Orthodontics, Faculty of Dentistry, Universidade de Coimbra, Coimbra, Portugal
| | - João Cavaleiro
- Department of Orthodontics, Faculty of Dentistry, Universidade de Coimbra, Coimbra, Portugal
| | - David Sanz
- Department of Maxillofacial Surgery, Coimbra University Hospital Centre, Coimbra, Portugal
| | - Francisco Caramelo
- Institute for Biomedical Imaging and Life Sciences, Faculty of Dentistry, Universidade de Coimbra, Coimbra, Portugal
| | - Luísa Maló
- Department of Orthodontics, Faculty of Dentistry, Universidade de Coimbra, Coimbra, Portugal
| | - João Pedro Marcelino
- Department of Maxillofacial Surgery, Coimbra University Hospital Centre, Coimbra, Portugal
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Gallo-Salazar C, Salinero JJ, Sanz D, Areces F, del Coso J. Professional tennis is getting older: Age for the top 100 ranked tennis players. INT J PERF ANAL SPOR 2017. [DOI: 10.1080/24748668.2015.11868837] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- César Gallo-Salazar
- Camilo José Cela University. Exercise Physiology Laboratory, CP 28692, Villanueva de la Canada, Madrid, Spain
| | - Juan José Salinero
- Camilo José Cela University. Exercise Physiology Laboratory, CP 28692, Villanueva de la Canada, Madrid, Spain
| | - David Sanz
- Camilo José Cela University. Exercise Physiology Laboratory, CP 28692, Villanueva de la Canada, Madrid, Spain
- Royal Spanish Tennis Federation, CP 28692, Villanueva de la Canada, Madrid. Spain
| | - Francisco Areces
- Camilo José Cela University. Exercise Physiology Laboratory, CP 28692, Villanueva de la Canada, Madrid, Spain
| | - Juan del Coso
- Camilo José Cela University. Exercise Physiology Laboratory, CP 28692, Villanueva de la Canada, Madrid, Spain
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Esquembri S, Ruiz M, Barrera E, Sanz D, Bustos A, Castro R, Vega J. Implementation of an image acquisition and processing system based on FlexRIO, CameraLink and areaDetector. Fusion Engineering and Design 2016. [DOI: 10.1016/j.fusengdes.2016.04.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Nieto J, Sanz D, Guillén P, Esquembri S, Arcas G, Ruiz M, Vega J, Castro R. High performance image acquisition and processing architecture for fast plant system controllers based on FPGA and GPU. Fusion Engineering and Design 2016. [DOI: 10.1016/j.fusengdes.2016.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Richi P, Navío T, Cebrian L, Lojo L, Gonzalez L, Salido M, Castro P, Jiménez A, Martín M, Yuste J, Llorente J, Thuissard I, Sanz D, Muñoz-Fernández S. FRI0587 Evaluation of The Immune Response To Vaccines in Patients on Biological Therapy. Preliminary Data of Rier Study. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3503] [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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Pinto I, Fonseca J, Vinagre A, Ângelo D, Sanz D, Grossmann E. Mandibular condylar hyperplasia: diagnosis and management. Case report. Revista Dor 2016. [DOI: 10.5935/1806-0013.20160095] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Neto T, Nunes R, Amado I, Balhau R, Marques H, Sanz D, Mesquita M, Pinto I, Correia-Sá I, Ferreira A. Parotid metastasis of an amelanotic melanoma of the scalp: The great masquerader. Head Neck 2015; 38:E91-4. [PMID: 26348327 DOI: 10.1002/hed.24222] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 05/24/2015] [Accepted: 07/20/2015] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Cutaneous melanoma is often characterized by its pigmented appearance; however, up to 8.1% of such lesions contain little or no pigmentation. Amelanotic melanomas, lesions devoid of visible pigment, present a diagnostic quandary because they can masquerade as many other skin pathologies. Recognizing amelanotic melanoma is even more clinically challenging when it is first detected as a metastasis to the secondary tissue. METHODS We report a rare case of metastasis of an amelanotic melanoma to the parotid gland. RESULTS A 75-year-old man presented with an 8-month history of a painless, mobile, hardened mass in the right parotid region. Histopathological analysis of a fine-needle aspiration biopsy of the parotid mass indicated that the mass was melanoma. Careful clinical and radiological examination revealed an 8 mm erythematous papule in the right temporal scalp, initially diagnosed by visual examination as basal cell carcinoma. After right superficial parotidectomy, neck dissection, and excision of the temporal scalp lesion, histological examination revealed the scalp lesion to be amelanotic melanoma. CONCLUSION Although metastatic amelanotic melanoma to the parotid gland is a rare diagnosis, the clinician should be familiar with this presentation to increase the likelihood of making the correct diagnosis and delivering prompt treatment.
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Affiliation(s)
- Tiago Neto
- Maxillofacial Surgery Unit of Department of Plastic, Reconstructive, Aesthetic Surgery, Maxillofacial Surgery, and Burn Unit, Hospital São João, Porto, Portugal
| | - Richard Nunes
- Department of Maxillofacial Surgery, Centro Hospitalar Universitário de Coimbra, Portugal
| | - Isabel Amado
- Department of Maxillofacial Surgery, Centro Hospitalar Universitário de Coimbra, Portugal
| | - Rui Balhau
- Maxillofacial Surgery Unit of Department of Plastic, Reconstructive, Aesthetic Surgery, Maxillofacial Surgery, and Burn Unit, Hospital São João, Porto, Portugal
| | - Hugo Marques
- Department of Maxillofacial Surgery, Centro Hospitalar Universitário de Coimbra, Portugal
| | - David Sanz
- Department of Maxillofacial Surgery, Centro Hospitalar Universitário de Coimbra, Portugal
| | - Margarida Mesquita
- Department of Maxillofacial Surgery, Centro Hospitalar Universitário de Coimbra, Portugal
| | - Isabel Pinto
- Maxillofacial Surgery Unit of Department of Plastic, Reconstructive, Aesthetic Surgery, Maxillofacial Surgery, and Burn Unit, Hospital São João, Porto, Portugal
| | - Inês Correia-Sá
- Maxillofacial Surgery Unit of Department of Plastic, Reconstructive, Aesthetic Surgery, Maxillofacial Surgery, and Burn Unit, Hospital São João, Porto, Portugal
| | - Artur Ferreira
- Department of Maxillofacial Surgery, Centro Hospitalar Universitário de Coimbra, Portugal
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Montserrat M, Sanz D, Juan T, Herrero A, Sánchez L, Calvo M, Pérez MD. Detection of peanut (Arachis hypogaea) allergens in processed foods by immunoassay: Influence of selected target protein and ELISA format applied. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.01.049] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Abstract
Temporomandibular joint (TMJ) lysis and lavage arthrocentesis with viscosupplementation are an effective treatment for acute disc displacement (DD) without reduction. Clinical success seems to be related to multiple factors despite the lack of understanding of its mechanisms. The authors present a case report of 17-year-old women with acute open mouth limitation (12 mm), right TMJ pain-8/10 visual analog scale, right deviation when opening her mouth. The clinical and magnetic resonance imaging (MRI) diagnosis was acute DD without reduction of right TMJ. Right TMJ arthrocentesis was purposed to the patient with lysis, lavage, and viscosupplementation of the upper joint space. After 5 days, a new MRI was performed to confirm upper joint space distension and disc position. Clinical improvement was obtained 5 days and 1 month after arthrocentesis. Upper joint space increased 6 mm and the disc remained displaced. We report the first early TMJ MRI image postoperative, with measurable upper joint space.
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Affiliation(s)
- David Faustino Ângelo
- Department of Stomatology, Santa Maria University Hospital - North Lisbon Hospital, Lisbon, Portugal
| | - Rita Sousa
- Department of Neuroradiology, Santa Maria University Hospital - North Lisbon Hospital, Lisbon, Portugal
| | - Isabel Pinto
- Department of Maxilofacial, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - David Sanz
- Department of Maxilofacial, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - F Monje Gil
- Department of Oromaxilofacial, Hospital Infanta Cristina, Badajoz, Spain
| | - Francisco Salvado
- Department of Stomatology, Santa Maria University Hospital - North Lisbon Hospital, Lisbon, Portugal
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Antoraz S, Santamaría RI, Díaz M, Sanz D, Rodríguez H. Toward a new focus in antibiotic and drug discovery from the Streptomyces arsenal. Front Microbiol 2015; 6:461. [PMID: 26029195 PMCID: PMC4429630 DOI: 10.3389/fmicb.2015.00461] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [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] [Received: 02/06/2015] [Accepted: 04/28/2015] [Indexed: 11/13/2022] Open
Abstract
Emergence of antibiotic resistant pathogens is changing the way scientists look for new antibiotic compounds. This race against the increased prevalence of multi-resistant strains makes it necessary to expedite the search for new compounds with antibiotic activity and to increase the production of the known. Here, we review a variety of new scientific approaches aiming to enhance antibiotic production in Streptomyces. These include: (i) elucidation of the signals that trigger the antibiotic biosynthetic pathways to improve culture media, (ii) bacterial hormone studies aiming to reproduce intra and interspecific communications resulting in antibiotic burst, (iii) co-cultures to mimic competition-collaboration scenarios in nature, and (iv) the very recent in situ search for antibiotics that might be applied in Streptomyces natural habitats. These new research strategies combined with new analytical and molecular techniques should accelerate the discovery process when the urgency for new compounds is higher than ever.
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Affiliation(s)
- Sergio Antoraz
- Departamento de Microbiología y Genética, Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas, Universidad de Salamanca Salamanca, Spain
| | - Ramón I Santamaría
- Departamento de Microbiología y Genética, Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas, Universidad de Salamanca Salamanca, Spain
| | - Margarita Díaz
- Departamento de Microbiología y Genética, Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas, Universidad de Salamanca Salamanca, Spain
| | - David Sanz
- Departamento de Microbiología y Genética, Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas, Universidad de Salamanca Salamanca, Spain
| | - Héctor Rodríguez
- Departamento de Microbiología y Genética, Instituto de Biología Funcional y Genómica, Consejo Superior de Investigaciones Científicas, Universidad de Salamanca Salamanca, Spain
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Gómez-Alday JJ, Carrey R, Valiente N, Otero N, Soler A, Ayora C, Sanz D, Muñoz-Martín A, Castaño S, Recio C, Carnicero A, Cortijo A. Denitrification in a hypersaline lake-aquifer system (Pétrola Basin, Central Spain): the role of recent organic matter and Cretaceous organic rich sediments. Sci Total Environ 2014; 497-498:594-606. [PMID: 25169874 DOI: 10.1016/j.scitotenv.2014.07.129] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 06/12/2014] [Revised: 07/31/2014] [Accepted: 07/31/2014] [Indexed: 06/03/2023]
Abstract
Agricultural regions in semi-arid to arid climates with associated saline wetlands are one of the most vulnerable environments to nitrate pollution. The Pétrola Basin was declared vulnerable to NO3(-) pollution by the Regional Government in 1998, and the hypersaline lake was classified as a heavily modified body of water. The study assessed groundwater NO3(-) through the use of multi-isotopic tracers (δ(15)N, δ(34)S, δ(13)C, δ(18)O) coupled to hydrochemistry in the aquifer connected to the eutrophic lake. Hydrogeologically, the basin shows two main flow components: regional groundwater flow from recharge areas (Zone 1) to the lake (Zone 2), and a density-driven flow from surface water to the underlying aquifer (Zone 3). In Zones 1 and 2, δ(15)NNO3 and δ(18)ONO3 suggest that NO3(-) from slightly volatilized ammonium synthetic fertilizers is only partially denitrified. The natural attenuation of NO3(-) can occur by heterotrophic reactions. However, autotrophic reactions cannot be ruled out. In Zone 3, the freshwater-saltwater interface (down to 12-16 m below the ground surface) is a reactive zone for NO3(-) attenuation. Tritium data suggest that the absence of NO3(-) in the deepest zones of the aquifer under the lake can be attributed to a regional groundwater flow with long residence time. In hypersaline lakes the geometry of the density-driven flow can play an important role in the transport of chemical species that can be related to denitrification processes.
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Affiliation(s)
- J J Gómez-Alday
- Hydrogeology Group, Institute for Regional Development (IDR), University of Castilla-La Mancha (UCLM), Campus Universitario s/n, 02071 Albacete, Spain.
| | - R Carrey
- Grup d'Mineralogia Aplicada i Medi Ambient, Dep. Cristal·lografia, Mineralogia i Dipòsits Minerals, Facultat de Geologia, Universitat de Barcelona, C/ Martí i Franquès s/n, 08028, Barcelona, Spain.
| | - N Valiente
- Hydrogeology Group, Institute for Regional Development (IDR), University of Castilla-La Mancha (UCLM), Campus Universitario s/n, 02071 Albacete, Spain.
| | - N Otero
- Grup d'Mineralogia Aplicada i Medi Ambient, Dep. Cristal·lografia, Mineralogia i Dipòsits Minerals, Facultat de Geologia, Universitat de Barcelona, C/ Martí i Franquès s/n, 08028, Barcelona, Spain.
| | - A Soler
- Grup d'Mineralogia Aplicada i Medi Ambient, Dep. Cristal·lografia, Mineralogia i Dipòsits Minerals, Facultat de Geologia, Universitat de Barcelona, C/ Martí i Franquès s/n, 08028, Barcelona, Spain.
| | - C Ayora
- Grup d'Hidrologia Subterrània (GHS), Institut de Diagnóstic Ambiental i Estudis de l'Aigua (IDAEA-CSIC), C/Jordi Girona 18, 08028 Barcelona, Spain.
| | - D Sanz
- Hydrogeology Group, Institute for Regional Development (IDR), University of Castilla-La Mancha (UCLM), Campus Universitario s/n, 02071 Albacete, Spain
| | - A Muñoz-Martín
- Applied Tectonophysics Group, Departamento de Geodinámica, Universidad Complutense de Madrid, C/José Antonio Novais 2, 28040 Madrid, Spain.
| | - S Castaño
- Hydrogeology Group, Institute for Regional Development (IDR), University of Castilla-La Mancha (UCLM), Campus Universitario s/n, 02071 Albacete, Spain
| | - C Recio
- Stable Isotope Laboratory, University of Salamanca, Plz. De los Caídos s/n, 37008 Salamanca, Spain.
| | - A Carnicero
- Stable Isotope Laboratory, University of Salamanca, Plz. De los Caídos s/n, 37008 Salamanca, Spain
| | - A Cortijo
- Hydrogeology Group, Institute for Regional Development (IDR), University of Castilla-La Mancha (UCLM), Campus Universitario s/n, 02071 Albacete, Spain
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Mata L, Sanz D, Razquin P. Validation of the Explorer® 2.0 test coupled to e-Reader® for the screening of antimicrobials in muscle from different animal species. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2014; 31:1496-505. [PMID: 24945830 DOI: 10.1080/19440049.2014.934303] [Citation(s) in RCA: 8] [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] [Indexed: 10/25/2022]
Abstract
The Explorer(®) 2.0 tube test is a microbial inhibition test for the screening of antimicrobial residues in food samples. The new e-Reader(®) device coupled to Explorer(®) 2.0 operates by incubation at a selected temperature, determination of the endpoint of the assay and interpretation to generate results. This system was validated for muscle samples according to the European Commission Decision 2002/657/EC. Sensitivity towards 25 substances from several groups of antimicrobials was investigated in a first step. Detection capabilities for six substances representing the six major antimicrobial groups were also determined in bovine muscle. The detection capabilities for amoxicillin (10 µg l(-1)), cefalexin (200 µg l(-1)), doxycyclin (100 µg l(-1)), sulfamethazine (100 µg l(-1)), tylosin (100 µg l(-1)) and neomycin (200 µg l(-1)) were in all cases at or below the maximum residue limit (MRL). Specificity and applicability of the test were demonstrated with muscle samples from four animal species (bovine, porcine, ovine and poultry) and results were found to be satisfactory. Ruggedness was evaluated on negative and spiked samples with sulfamethazine as a representative antimicrobial. Neither false-positives nor false-negatives were detected when varying the sample volume, the time of pre-incubation, the temperature of incubation and the batch of the test. These results prove that Explorer(®) 2.0 coupled to e-Reader(®) is a valuable tool for the screening of a broad range of antimicrobials in muscle. This new methodology simplifies the analysis and increases the accuracy of interpretation of the test results since the endpoint of the assay is automatically determined and results are interpreted objectively.
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Affiliation(s)
- Luis Mata
- a R&D Department, ZEULAB S.L. , Zaragoza , Spain
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Castro R, Romero J, Vega J, Nieto J, Ruiz M, Sanz D, Barrera E, De Arcas G. Soft real-time EPICS extensions for fast control: A case study applied to a TCV equilibrium algorithm. Fusion Engineering and Design 2014. [DOI: 10.1016/j.fusengdes.2014.03.044] [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: 10/25/2022]
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Sanz D, Ruiz M, Lopez J, Castro R, Vega J, Barrera E. IEEE 1588 clock distribution for FlexRIO devices in PXIe platforms. Fusion Engineering and Design 2014. [DOI: 10.1016/j.fusengdes.2014.02.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lozano-Fernández T, Ballester-Antxordoki L, Pérez-Temprano N, Rojas E, Sanz D, Iglesias-Gaspar M, Moya S, González-Fernández Á, Rey M. Potential impact of metal oxide nanoparticles on the immune system: The role of integrins, L-selectin and the chemokine receptor CXCR4. Nanomedicine 2014; 10:1301-10. [PMID: 24650882 DOI: 10.1016/j.nano.2014.03.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 03/06/2014] [Accepted: 03/08/2014] [Indexed: 12/12/2022]
Abstract
UNLABELLED The impact of metal oxide nanoparticles (NPs) on the immune system has been studied in vitro using human peripheral blood lymphocytes (PBLs). Metal oxide NPs (ZnO, CeO2, TiO2 and Al2O3) induced changes in the expression levels of adhesion molecules and the C-X-C chemokine receptor type 4 (CXCR4) in these cells. Proliferation studies were carried out with CFSE in response to PHA, finding an increase in T-cell proliferation upon cell exposure to TiO2 and Al2O3 NPs. For ZnO NPs, a decrease in the chemotactic response to SDF-1α was observed. No changes were found in basophil activation and leukocyte oxidative burst after phagocytosis. Despite the absence of cytotoxicity, metal oxide NPs are not inert; they alter the expression levels of adhesion molecules and chemokine receptors, key actors in the immune response, and affect important cell functions such as T-cell proliferative response to mitogens and chemotaxis. FROM THE CLINICAL EDITOR This study demonstrates the immune-modulating effects of four different metal nanoparticles in a human peripheral blood lymphocyte model system. These effects were clearly present even though these nanoparticles did not display cytotocity in ex vivo experiments.
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Affiliation(s)
- Tamara Lozano-Fernández
- Immunology, Biomedical Research Center (CINBIO) and Institute of Biomedical Research of Vigo (IBIV), University of Vigo, Vigo, Pontevedra, Spain
| | | | - Nerea Pérez-Temprano
- Laboratorio de Inmunología, Hospital Universitario Donostia, San Sebastián, Guipúzcoa, Spain
| | - Elena Rojas
- CIC Biomagune, San Sebastián, Guipúzcoa, Spain
| | - David Sanz
- CIC Biomagune, San Sebastián, Guipúzcoa, Spain
| | - Maite Iglesias-Gaspar
- Unidad de Epidemiología Clínica e Investigación, Hospital Universitario Donostia, San Sebastián, Guipúzcoa, Spain
| | - Sergio Moya
- CIC Biomagune, San Sebastián, Guipúzcoa, Spain
| | - África González-Fernández
- Immunology, Biomedical Research Center (CINBIO) and Institute of Biomedical Research of Vigo (IBIV), University of Vigo, Vigo, Pontevedra, Spain.
| | - Mercedes Rey
- Laboratorio de Inmunología, Hospital Universitario Donostia, San Sebastián, Guipúzcoa, Spain.
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Neto T, Amado I, Balhau R, Marcelino J, Barroso L, Sanz D, H.Marques, Rodrigues H, Correia-Sá I, Ferreira A. Parotid surgery – 10 years experience from a single institution in Portugal (Department of Maxillofacial Surgery of University Hospital Center of Coimbra). Int J Oral Maxillofac Surg 2013. [DOI: 10.1016/j.ijom.2013.07.631] [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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Mesquita M, Barroso L, Ramos S, Lopes T, Sanz D, Ferreira A. Malignant paraganglioma of the parapharyngeal region – clinical case. Int J Oral Maxillofac Surg 2013. [DOI: 10.1016/j.ijom.2013.07.355] [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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Neto T, Amado I, Marcelino J, Barroso L, Ferreira S, Nunes R, S.Bitoque, Sanz D, Correia-Sá I, Ferreira A. A 10-year (2002–2011) retrospective review of 1786 patients and 2212 maxillofacial fractures treated surgically at Coimbra University Hospital, Portugal. Int J Oral Maxillofac Surg 2013. [DOI: 10.1016/j.ijom.2013.07.206] [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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Romero G, Murray RA, Qiu Y, Sanz D, Moya SE. Layer by layer surface engineering of poly (lactide-co-glycolide) nanoparticles: A versatile tool for nanoparticle engineering for targeted drug delivery. Sci China Chem 2013. [DOI: 10.1007/s11426-013-4891-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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