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de Medeiros CSP, Zanin L, Sperandio M, de Souza Fonseca Silva A, Flório FM. Validation of an educational comic book to guide conducts in situations of dental trauma. Dent Traumatol 2024; 40:161-170. [PMID: 37881116 DOI: 10.1111/edt.12901] [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: 06/21/2023] [Revised: 09/15/2023] [Accepted: 10/12/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND/AIM Childhood dental trauma poses a prevalent concern, and the limited knowledge of lay caregivers toward the needed immediate actions can adversely affect a child's well-being. This study aimed to create and validate an educational comic book for lay individuals, designed to guide immediate actions in dental trauma cases, and assess its effects toward enhancing reader knowledge. METHODOLOGY The four-stage study involved: (1) Literature review and script development; (2) Version 1 of the comic book creation (including illustrations, layout, and design) and Flesch Readability Index (FI) calculation; (3) Version 1 validation by expert judges, assessed by the Content Validity Index (CVI); (4) Version 1 refinement based on the judges' feedback, recalculation of FI, and a pilot test (CVI) involving lay individuals who validated the final material (Version 2). The validation process involved 67 participants, including 13 specialist judges and 54 elementary school teachers. RESULTS The CVI for Version 1 was calculated at 0.89 (89%), indicating a favorable level of agreement on the evaluated criteria. The FI was determined as 91.1%, indicating a high level of readability. The FI for Version 2 was 92.1% (indicating a very easy level of comprehension). The CVI calculated for the target audience after the pilot test was 0.99 (99%), denoting a substantial agreement among the participants. In assessing the level of knowledge, a significant increase was observed in the rate of correct answers after the comic book was read by lay individuals (p < 0.05), inasmuch as the percentage rose from 50.5% before to 81.2% after reading it. CONCLUSION The educational comic book proved valid in terms of readability, appearance, and content. Furthermore, it had a positive impact on gaining the knowledge needed to take the appropriate actions, thus making it a valuable tool for guiding the lay population in cases of dental trauma.
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Penafort PVM, Rocha AC, Mariano FV, Dos Santos JN, Oliveira MC, Vargas PA, Sperandio M. DNA content and clinicopathological features aid in distinguishing ameloblastic carcinoma from ameloblastoma. J Oral Pathol Med 2024; 53:70-78. [PMID: 38163857 DOI: 10.1111/jop.13505] [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: 07/17/2023] [Revised: 11/07/2023] [Accepted: 12/14/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Ameloblastoma and ameloblastic carcinoma are epithelial odontogenic tumors that can be morphologically similar. In the present study, we evaluated the DNA content and Ki-67 index in the two tumors. METHODS The paraffin blocks of the tumors were selected to obtain sections for the immunohistochemical reactions and preparation of the cell suspension for acquisition in a flow cytometer. The Random Forest package of the R software was used to verify the contribution of each variable to classify lesions into ameloblastoma or ameloblastic carcinoma. RESULTS Thirty-two ameloblastoma and five ameloblastic carcinoma were included in the study. In our sample, we did not find statistically significant differences in Ki-67 labeling rates. A higher fraction of cells in 2c (G1) was correlated with the diagnosis of ameloblastoma, whereas higher rates of 5c-exceeding rate (5cER) were correlated with ameloblastic carcinoma. The Random Forest model highlighted histopathological findings and parameters of DNA ploidy study as important features for distinguishing ameloblastoma from ameloblastic carcinoma. CONCLUSION Our findings suggest that the parameters of the DNA ploidy study can be ancillary tools in the classification of ameloblastoma and ameloblastic carcinoma.
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Affiliation(s)
- Paulo Victor Mendes Penafort
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - André Caroli Rocha
- Oral and Maxillofacial Surgery and Traumatology Service, Clinical Hospital, Medical School, University of São Paulo (FMUSP), São Paulo, São Paulo, Brazil
| | - Fernanda Viviane Mariano
- Department of Pathology, Faculty of Medical Sciences, University of Campinas, Campinas, São Paulo, Brazil
| | - Jean Nunes Dos Santos
- Department of Oral Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Márcio Campos Oliveira
- Department of Health, State University of Feira de Santana, Feira de Santana, Bahia, Brazil
| | - Pablo Agustin Vargas
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Marcelo Sperandio
- Department of Oral Medicine and Pathology, Faculdade São Leopoldo Mandic, Research Institute, Campinas, São Paulo, Brazil
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Silva LC, Leite AA, Borgato GB, Wagner VP, Martins MD, Loureiro FJA, Lopes MA, Santos-Silva AR, Sperandio M, de Castro Junior G, Kowalski LP, Squarize CH, Castilho RM, Vargas PA. Oral squamous cell carcinoma cancer stem cells have different drug sensitive to pharmacological NFκB and histone deacetylation inhibition. Am J Cancer Res 2023; 13:6038-6050. [PMID: 38187064 PMCID: PMC10767341] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/06/2023] [Indexed: 01/09/2024] Open
Abstract
Despite many progresses in the development of new systemic therapies for oral squamous cell carcinoma (OSCC), the five-year survival rate of OSCC is low. The traditional chemotherapies approach (cisplatin - CDDP) shows some limitations like drug toxicity, limited efficacy, and drug resistance. Promising studies suggested OSCC cancer stem cells (CSC) presented resistance to CDDP. We have previously studied many targets, and we extensively showed the efficacy of the NFκB signaling and the role of histones acetylation, on different malignant tumors, including adenoid cystic carcinoma and mucoepidermoid carcinoma, but until then the effects of the NFkB inhibitor and histone deacetylase (HDAC) inhibitor on the biology of OSCC were not evaluated. Here we assessed the pharmacological inhibitor of NFκB emetine and HDAC inhibitor SAHA on the behavior of CSC derived from OSCC. Our data suggested that CDDP administration resulted in reduced viability of bulk OSCC cells and increased CSC. A single and isolated shot of emetine and SAHA were able to disrupt CSC by inhibiting the NFκB pathway and increasing the histone acetylation levels, respectively. Further, the combined administration of emetine and SAHA presented the same CSC disruption as seen in emetine alone.
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Affiliation(s)
- Luan César Silva
- Department of Oral Diagnosis, Piracicaba Dental School, University of CampinasPiracicaba, SP, Brazil
- Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, University of Michigan School of DentistryAnn Arbor, MI, USA
| | - Amanda Almeida Leite
- Department of Oral Diagnosis, Piracicaba Dental School, University of CampinasPiracicaba, SP, Brazil
| | | | - Vivian Petersen Wagner
- Academic Unit of Oral and Maxillofacial Medicine and Pathology, Department of Clinical Dentistry, University of SheffieldSheffield, SY, UK
| | - Manoela Domingues Martins
- Department of Oral Diagnosis, Piracicaba Dental School, University of CampinasPiracicaba, SP, Brazil
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do SulPorto Alegre, Brazil
| | | | - Márcio Ajudarte Lopes
- Department of Oral Diagnosis, Piracicaba Dental School, University of CampinasPiracicaba, SP, Brazil
| | - Alan Roger Santos-Silva
- Department of Oral Diagnosis, Piracicaba Dental School, University of CampinasPiracicaba, SP, Brazil
| | - Marcelo Sperandio
- Department of Oral Pathology & Medicine, Sao Leopoldo Mandic Dental Institute and Research CenterCampinas, SP, Brazil
| | - Gilberto de Castro Junior
- Serviço de Oncologia Clínica, Instituto do Câncer do Estado de São Paulo, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São PauloSão Paulo, SP, Brazil
| | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery, University of Sao Paulo Medical School and Head and Neck Surgery and Otorhinolaryngology Department, AC Camargo Cancer CenterSão Paulo, SP, Brazil
| | - Cristiane H Squarize
- Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, University of Michigan School of DentistryAnn Arbor, MI, USA
| | - Rogerio Moraes Castilho
- Laboratory of Epithelial Biology, Department of Periodontics and Oral Medicine, University of Michigan School of DentistryAnn Arbor, MI, USA
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of CampinasPiracicaba, SP, Brazil
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Sperandio M, Warnakulasuriya S, Soares AB, Passador-Santos F, Mariano FV, Lima CSP, Scarini JF, Dominguete MHL, Moraes PDC, Montalli VAM, Hellmeister L, Araújo VCD. Oral epithelial dysplasia grading: comparing the binary system to the traditional 3-tier system, an actuarial study with malignant transformation as outcome. J Oral Pathol Med 2022; 52:418-425. [PMID: 36177736 DOI: 10.1111/jop.13365] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/09/2022] [Accepted: 08/23/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Establishing the risk of malignant transformation (MT) in oral leukoplakia is usually based on grading oral epithelial dysplasia (OED) on biopsy tissue, for which two systems are proposed: a 3-tier and a binary system. Only very few actuarial studies have tested the accuracy of such methods in predicting MT, especially for the binary system. This study aimed to assess the accuracy of the two grading systems in predicting MT in a cohort of oral leukoplakia (OL) from Brazil, with follow-up data METHODS: The sample comprised 878 individuals diagnosed with OL from 2005 to 2018. Follow-up data were obtained both locally and from the regional cancer registry. All lesions were graded using both the 3-tier and the binary systems. Kaplan-Meier curves (Log-rank Mantel-Cox) were used to assess risk and kappa to assess interobserver agreement RESULTS: Thirty-five individuals underwent MT (4%). Both systems demonstrated prognostic value, though the 3-tier system proved superior, with OR 9.23 (3.42-23.69), PPV 0.152, NPV 0.98, compared to binary OR 3.49 (1.79-6.79), PPV 0.079, NPV 0.976. Interobserver agreement was also superior in the 3-tier system (0.47, p<0.05) compared to the binary system (0.139, p=0.39). Combining the two systems enhanced prognostic values (OR 14.28, PPV 0.217, NPV 0.981). CONCLUSION The 3-tier system presented superior prognostic value to the binary system. Combining both systems to double-grade intermediate lesions might enhance risk assessment.
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Affiliation(s)
- Marcelo Sperandio
- Department of Oral Medicine and Pathology, Faculdade São Leopoldo Mandic, Research Institute, Campinas, São Paulo, Brazil
| | - Saman Warnakulasuriya
- Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK.,WHO Collaborating Centre for Oral Cancer, London, UK
| | - Andresa Borges Soares
- Department of Oral Medicine and Pathology, Faculdade São Leopoldo Mandic, Research Institute, Campinas, São Paulo, Brazil
| | - Fabrício Passador-Santos
- Department of Oral Medicine and Pathology, Faculdade São Leopoldo Mandic, Research Institute, Campinas, São Paulo, Brazil
| | - Fernanda Viviane Mariano
- Department of Pathology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | | | - João Figueira Scarini
- Department of Pathology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.,Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP/UNICAMP), Piracicaba, São Paulo, Brazil
| | | | - Paulo de Camargo Moraes
- Department of Oral Medicine and Pathology, Faculdade São Leopoldo Mandic, Research Institute, Campinas, São Paulo, Brazil
| | - Victor Angelo Martins Montalli
- Department of Oral Medicine and Pathology, Faculdade São Leopoldo Mandic, Research Institute, Campinas, São Paulo, Brazil
| | - Luiza Hellmeister
- Department of Oral Medicine and Pathology, Faculdade São Leopoldo Mandic, Research Institute, Campinas, São Paulo, Brazil
| | - Vera Cavalcanti de Araújo
- Department of Oral Medicine and Pathology, Faculdade São Leopoldo Mandic, Research Institute, Campinas, São Paulo, Brazil
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De Camargo Moraes P, Tacchelli DP, Agatti L, Hellmeister L, Junqueira JLC, Sperandio M, Montalli VAM. LANGERHANS CELL HISTIOCYTOSIS ASSOCIATED WITH ERDHEIN-CHESTER'S DISEASE: A RARE OCCURRENCE. Oral Surg Oral Med Oral Pathol Oral Radiol 2022. [DOI: 10.1016/j.oooo.2022.01.304] [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: 10/15/2022]
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Sperandio M, Dominguete M, Soares AB, Mariano FV, Araújo VC. QUALITATIVE ENHANCEMENT OF THE DNA PLOIDY ANALYSIS CRITERIA TO ASSESS MALIGNANT TRANSFORMATION RISK. Oral Surg Oral Med Oral Pathol Oral Radiol 2021. [DOI: 10.1016/j.oooo.2021.03.164] [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: 11/24/2022]
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Silva FTD, Sperandio M, Suzuki SS, Silva HPV, de Oliveira DG, Stefenon L, Garcez AS. Self-reported taste and smell impairment among patients diagnosed with COVID-19 in Brazil. Oral Dis 2021; 28 Suppl 2:2559-2562. [PMID: 34181804 PMCID: PMC8447127 DOI: 10.1111/odi.13951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 01/14/2021] [Accepted: 06/24/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Felipe T D Silva
- São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
| | | | - Selly S Suzuki
- São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
| | | | | | - Letícia Stefenon
- São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
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Stefenon L, Boasquevisque M, Garcez AS, de Araújo VC, Soares AB, Santos-Silva AR, Sperandio F, Brod JMM, Sperandio M. Autophagy upregulation may explain inhibition of oral carcinoma in situ by photobiomodulation in vitro. J Photochem Photobiol B 2021; 221:112245. [PMID: 34182186 DOI: 10.1016/j.jphotobiol.2021.112245] [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] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 05/24/2021] [Accepted: 06/16/2021] [Indexed: 01/14/2023]
Abstract
There is currently no clear understanding on the pathways involved in the process of cell inhibition by photobiomodulation (PBM). The present study evaluated the influence of PBM on the expression of autophagy markers in vitro in an in situ model of oral carcinoma. Oral squamous cell carcinoma (Cal27) and stromal fibroblasts (FG) cultures were used. The independent variables were 'cell type' (FG and CAL27) 'culture condition' (monocultures or co-cultures) and PBM (placebo and 36 J/cm2). The cultures were irradiated from a red LED source for mRNA expression and protein expression analyses. The autophagy markers evaluated were Beclin-1, LC3B and p62 as well as adjuvant markers (BAX Bcl-2, VEGF, CD105, CD34, PRDX1, PRDX4 and GRP78). The Cal27 cells upregulated the autophagy markers upon exposure to PBM both at the mRNA and protein expression levels, providing evidence to explain malignant cell inhibition by PBM.
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Affiliation(s)
- Letícia Stefenon
- Faculdade Especializada na Áreas de Saúde do Rio Grande do Sul, Passo Fundo, RS, Brazil
| | | | | | | | | | | | - Felipe Sperandio
- Oral Medicine Oral Pathology Resident - Faculty of Dentistry, University of British Columbia, 2199 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
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Bertolo R, Forte V, Cipriani C, Vittori M, Cavallo A, Iacovelli V, Antonucci M, Petta F, Panei M, Sperandio M, Bove P. Performance comparison between computer-software-based fusion versus cognitive fusion technique in biopsy-naïve patients: A single-center analysis. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01327-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Garcez AS, Delgado MGT, Sperandio M, Dantas E Silva FT, de Assis JSR, Suzuki SS. Photodynamic Therapy and Photobiomodulation on Oral Lesion in Patient with Coronavirus Disease 2019: A Case Report. Photobiomodul Photomed Laser Surg 2021; 39:386-389. [PMID: 34009028 DOI: 10.1089/photob.2020.4977] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Objective: This article reports the case of a patient with oral manifestation of coronavirus disease 2019 (COVID-19) treated with photobiomodulation (PBM) and photodynamic therapy (PDT). Background: Some dermatological and oral mucosal lesions have recently been linked to severe acute respiratory syndrome coronavirus 2 infection. Methods: A 65-year-old female patient with a confirmed real-time reverse transcriptase-polymerase chain reaction diagnosis of COVID-19 presented with dry edematous lips, edema with mucosal desquamation, ulceration and blood crust on the inner aspect of the lips, gingival petechiae and erythematous and pseudomembranous lesions on the dorsum of the tongue. The treatment protocol was three sessions of antimicrobial PDT (aPDT) (660 nm diode laser + methylene blue) to the lips and tongue, every 24 h to control contamination, followed by PBM (low-power laser, 100 mW, 2 J/point) to the lips, tongue, and oral mucosa for additional four sessions every 24 h. Results: Therapy association promoted pain control and healing of oral mucosal lesions in 7 days of treatment. Conclusions: PBM and aPDT could be an interesting approach to manage COVID-19 patients.
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Forte V, Cavallo A, Bertolo R, Muscogiuri E, Cipriani C, Maiorino F, Bove P, Sperandio M. Computer tomography texture analysis: a promising tool aiding in suspecting clear cell renal carcinoma at pre-treatment imaging. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00973-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Montalli VAM, Garcez AS, de Oliveira LVC, Sperandio M, Napimoga MH, Motta RHL. A novel dental biosafety device to control the spread of potentially contaminated dispersion particles from dental ultrasonic tips. PLoS One 2021; 16:e0247029. [PMID: 33600421 PMCID: PMC7891706 DOI: 10.1371/journal.pone.0247029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 01/31/2021] [Indexed: 11/19/2022] Open
Abstract
Strategies to return to dental practice in pandemic times is a new challenge due to the generation and spread of potentially contaminated dispersion particles (PCDP) that may contain the SARS-CoV-2, the etiological factor of the COVID-19 disease. Due to the significant dispersion of PCDP in the dental environment, the use of equipment such as ultrasonic tips have been inadvisable during the pandemic. Several clinical procedures, however, benefit from the use of such equipment. Thus, using a microbial dispersion model of PCDP, the aim of this study was to compare the dispersion caused by the dental drill (DD) an ultrasonic tip (UT) alone and the UT coupled with a Spray control (SC) device. The DD, UT (with or without the SC) were activated for one minute having had the water from the reservoir replaced with a suspension of Lactobacillus casei Shirota (1.5 x 108 CFU/mL). Petri dishes containing MRS agar were positioned at 50cm, 100cm and 150cm from the headrest of the dental chair at different angles (0 degree and 90 degrees). At 50 cm, the mean CFU (standard deviation) of L. casei Shirota was 13554.60 (4071.03) for the DD, 286.67 (73.99) for the US (97.89% reduction), and 4.5 (0.58) CFU for the UT-SC (p < 0.0001), establishing a further 98.43% reduction between UT and UT with SC. The UT with SC model proved effective in reducing dispersion from the UT, endorsing its use as an additional strategy to reduce PCDP in the dental environment in times of pandemic.
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Affiliation(s)
- Victor Angelo Martins Montalli
- Division of Microbiology, Faculdade São Leopoldo Mandic, Campinas, São Paulo, Brazil
- Division of Oral Medicine, Faculdade São Leopoldo Mandic, Campinas, São Paulo, Brazil
- * E-mail: ,
| | | | | | - Marcelo Sperandio
- Division of Oral Medicine, Faculdade São Leopoldo Mandic, Campinas, São Paulo, Brazil
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Bertolo R, Vittori M, Cipriani C, Maiorino F, Forte V, Iacovelli V, Petta F, Sperandio M, Marani C, Panei M, Travaglia S, Bove P. Diagnostic pathway of the biopsy-naïve patient suspected for prostate cancer: Real-life scenario when multiparametric Magnetic Resonance Imaging is not centralized. Prog Urol 2021; 31:739-746. [PMID: 33431200 DOI: 10.1016/j.purol.2020.12.008] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/27/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
INTRODUCTION We aimed to compare the pathway including multi-parametric Magnetic Resonance Imaging (mpMRI) versus the one without mpMRI in detection of prostate cancer (PCa) when mpMRI is not centralized. MATERIALS January 2019-March 2020: prospective data collection of trans-perineal prostate biopsies. Group A: biopsy-naïve patients who underwent mpMRI (at any institution) versus Group B: patients who did not. Within Group A, patients were stratified into those with negative mpMRI (mpMRI-, PIRADS v2.1=1-3, with PSA density <0.15 if PIRADS 3) who underwent standard biopsy (SB), versus those with positive mpMRI (mpMRI+, when PIRADS 3-5, with PSA density>0.15 if PIRADS 3) who underwent cognitive fusion biopsy. RESULTS Two hundred and eighty one biopsies were analyzed. 153 patients underwent mpMRI (Group A). 98 mpMRI+ underwent fusion biopsy; 55 mpMRI- underwent SB. 128 Group B patients underwent SB. Overall PCa detection rate was 52.3% vs. 48.4% (Group A vs. B, P=0.5). Non-clinically-significant PCa was detected in 7.8 vs. 13.3% (Group A vs. B, P=0.1). Among the 98 mpMRI+ Group A patients only 2 had non clinically-significant disease. In 55 mpMRI- patients who underwent SB, 10 (18.2%) had clinically-significant PCa. Prostate volume predicted detection of PCa. In Group B, age and PSA predicted PCa. Sensitivity of mpMRI was 75.0% for all PCa, 85.3% for clinically-significant PCa. CONCLUSION Higher detection of PCa and lower detection of non-clinically-significant PCa favored mpMRI pathway. A consistent number of clinically-significant PCa was diagnosed after a mpMRI-. Thus, in real-life scenario, mpMRI- does not obviate indication to biopsy when mpMRI is not centralized. LEVEL OF EVIDENCE 3.
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Affiliation(s)
- R Bertolo
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy.
| | - M Vittori
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
| | - C Cipriani
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
| | - F Maiorino
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
| | - V Forte
- Department of Radiology, San Carlo di Nancy Hospital, Rome, Italy
| | - V Iacovelli
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
| | - F Petta
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
| | - M Sperandio
- Department of Radiology, San Carlo di Nancy Hospital, Rome, Italy
| | - C Marani
- Department of Anatomo-Pathology, San Carlo di Nancy Hospital, Rome, Italy
| | - M Panei
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
| | - S Travaglia
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
| | - P Bove
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
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Dalla-Costa K, Yurtsever FV, Penteado J, Martinez EF, Sperandio M, Peruzzo DC. Melatonin has a stimulatory effect on osteoblasts by upregulating col-i and opn expression/secretion. Acta Odontol Latinoam 2020; 33:125. [PMID: 32920615] [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] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
Melatonin (MLT) is a potential signaling molecule in the homeostasis of bone metabolism and may be an important mediator of bone formation and stimulation. The aim of this in vitro study was to evaluate the effect of MLT on the viability, mRNA/protein expression and mineralization of pre-osteoblastic cells. The concentrations 5, 2.5, 1, 0.1 and 0.01 mM MLT were tested on pre-osteoblastic cells (MC3T3) compared to control (no MLT), evaluating proliferation and cell viability (C50), gene expression (RT-PCR) and secretion (ELISA) of COL-I and OPN at 24h, 48h and 72h, and the formation of mineral nodules (alizarin red and fast red) after 10 days of treatment. MLT at 5 and 2.5 mM proved to be cytotoxic (C50), so only 0.01, 0.1 and 1 mM were used for the subsequent analyses. OPN mRNA expression increased with MLT at 0.1 mM - 1 mM, which was followed by increased secretion of OPN both at 24h and 72h compared to the remaining groups (p <0.05). COL-I mRNA and COL-1 secretion followed the same pattern as OPN at 0.1 mM MLT at 72h of treatment (p <0.05). Regarding mineralization, all MLT doses (except 1mM) caused an increase (p <0.05) in the formation of mineral nodules compared to the control. Melatonin at 0.01mM - 1mM had a stimulatory effect on osteoblasts by upregulating COL-I and OPN expression/ secretion and mineralization, thereby fostering osteogenesis.
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Affiliation(s)
- Karen Dalla-Costa
- Faculdade de Odontologia São Leopoldo Mandic, Departamento de Pesquisa em Odontologia, Campinas, São Paulo, Brasil.
| | - Fikriye V Yurtsever
- Faculdade de Odontologia São Leopoldo Mandic, Departamento de Pesquisa em Odontologia, Campinas, São Paulo, Brasil
| | - Julia Penteado
- Faculdade de Odontologia São Leopoldo Mandic, Departamento de Pesquisa em Odontologia, Campinas, São Paulo, Brasil
| | - Elizabeth F Martinez
- Faculdade de Odontologia São Leopoldo Mandic, Departamento de Pesquisa em Odontologia, Campinas, São Paulo, Brasil
| | - Marcelo Sperandio
- Faculdade de Odontologia São Leopoldo Mandic, Departamento de Pesquisa em Odontologia, Campinas, São Paulo, Brasil
| | - Daiane C Peruzzo
- Faculdade de Odontologia São Leopoldo Mandic, Departamento de Pesquisa em Odontologia, Campinas, São Paulo, Brasil
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Forte V, Cavallo AU, Bertolo R, de Soccio V, Sperandio M, Bove P, Ciccariello M. PI-RADS score v.2 in predicting malignancy in patients undergoing 5α-reductase inhibitor therapy. Prostate Cancer Prostatic Dis 2020; 24:150-155. [PMID: 32681155 DOI: 10.1038/s41391-020-0256-9] [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: 03/08/2020] [Revised: 06/27/2020] [Accepted: 07/09/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND To investigate if the PI-RADS score represents an effective tool in detecting prostate cancer in patients treated with a 5α-reductase inhibitor (dutasteride) and to identify dedicated total serum PSA and PSA density thresholds. METHODS Between April 2015 and March 2018, 75 patients under dutasteride treatment underwent multi-parametric magnetic resonance imaging (mpMRI) scans and US/MRI fusion prostate biopsy. Lesions were classified into two groups: Group 1 included PI-RADS 4 and 5 lesions, whilst Group 2 included PI-RADS 3-4-5 lesions. Lesions in groups 1 and 2 were further divided according to the patients' history of previous prostate biopsy. RESULTS Ninety-seven lesions were detected. In PI-RADS 4-5 group, mpMRI showed a sensitivity of 78.0% and a specificity of 78.7%. The positive predictive value (PPV) was 79.6% and the negative predictive value (NPV) 77.1%. In PI-RADS 3-4-5 group, sensitivity was 100%, specificity 21.3%, PPV 57.5%, NPV 100%. In PI-RADS 4-5 biopsy-naive group sensitivity was 71.4%, specificity 75.0%. PPV 78.9% and NPV 66.7%. In PI-RADS 4-5 non-biopsy-naive group sensitivity was 82.8%, specificity 80.6%, PPV 80%, and NPV 83.3%. PI-RADS 3-4-5 biopsy-naive group showed sensitivity 100%, specificity 31.3%, PPV 65.6%, NPV 100%. PI-RADS 3-4-5 non-biopsy-naive group showed sensitivity 100%, specificity 16.1%, PPV 52.7%, and NPV 100%. ROC curve analysis indicated a serum total PSA threshold of 6 ng/ml (AUC: 0.71-95% confidence interval: 0.60-0.81) and a PSA density >0.22 (AUC: 0.70-95% confidence interval: 0.6-0.81) as optimal cut-offs for recommending prostate biopsy. CONCLUSIONS In our experience the PI-RADS score proved to be sufficiently accurate in predicting prostate cancer in patients under dutasteride therapy.
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Affiliation(s)
- V Forte
- Department of Radiology, San Carlo di Nancy Hospital, Rome, Italy.
| | - A U Cavallo
- Department of Radiology, San Carlo di Nancy Hospital, Rome, Italy.,University Hospital Policlinico "Tor Vergata", Rome, Italy
| | - R Bertolo
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
| | - V de Soccio
- Department of Radiological, Oncological and Anatomo-Pathological Sciences, Sapienza University, Rome, Italy
| | - M Sperandio
- Department of Radiology, San Carlo di Nancy Hospital, Rome, Italy
| | - P Bove
- Department of Urology, San Carlo di Nancy Hospital, Rome, Italy
| | - M Ciccariello
- Department of Radiological, Oncological and Anatomo-Pathological Sciences, Sapienza University, Rome, Italy
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16
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Furlan B, de Melo BT, Papini JZB, Sperandio M, Oliveira JD, de Paula E, Cereda CMS, Tofoli GR. Pre-clinical evaluation of new dibucaine formulations for preventive analgesia. J Liposome Res 2020; 31:230-236. [PMID: 32567452 DOI: 10.1080/08982104.2020.1785494] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
We have previously developed ammonium sulphate gradient loaded liposomes to encapsulate dibucaine. Thus, the purpose of this study was to evaluate the pre-clinical safety and effectiveness of this novel ionic liposomal formulation of dibucaine (DBC), as described in previous work. Effectiveness was evaluated in vivo on Wistar rats (n = 8) that received plain DBC or liposomal DBC (DBCLUV). Control empty liposomes (without DBC) or saline were also used as control. Sciatic nerve block was performed using the formulations or controls (0.4 mL). A hindpaw incision-based postoperative pain model was used to evaluate mechanical hypersensitivity with von Frey filaments. To verify antiinflamatory activity protein levels of TNF-α, IL-1β, substance P and CGRP were measured by ELISA in the hindpaw tissue after 1 and 6 hours of the incision. To corroborate drug safety, sciatic nerve Schwann cell cultures were treated with the aforementioned formulations and assessed for cell viability (MTT assay) and death (flow cytometry assay). Histopathology of the tissues surrounding the sciatic nerve region was also assessed 2 and 7 days after treatment. All animals presented post incisional hypersensitivity and DBCLUV showed longer analgesic effect (p < 0.001). DBCLUV reduced TNF-α and CGRP levels (p < 0.05). Histopathological evaluation showed greater inflammatory reaction after the administration of control liposomes when compared to DBC (p < 0.05). There was no difference in Schwann cell viability and death between plain and encapsulated DBC. DBCLUV was safe and enhanced anaesthesia duration due to slow release of dibucaine from ammonium sulphate gradient loaded liposomes.
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Affiliation(s)
- Beatriz Furlan
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Beatriz T de Melo
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Juliana Z B Papini
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Marcelo Sperandio
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Juliana D Oliveira
- Departamento de Bioquímica, Universidade Estadual de Campinas, Instituto de Biologia, Campinas, São Paulo, Brazil
| | - Eneida de Paula
- Departamento de Bioquímica, Universidade Estadual de Campinas, Instituto de Biologia, Campinas, São Paulo, Brazil
| | - Cintia M S Cereda
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Giovana R Tofoli
- Faculdade São Leopoldo Mandic, Instituto de Pesquisa São Leopoldo Mandic, Campinas, São Paulo, Brazil
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17
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Lourenço AG, Araújo VC, Passador-Santos F, Sperandio M, Neville BW, Dorta RG. Lipoid Proteinosis: A Rare Disease In Pediatric Dentistry. Braz Dent J 2020; 31:186-189. [PMID: 32556019 DOI: 10.1590/0103-6440202003054] [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: 07/10/2019] [Accepted: 11/27/2019] [Indexed: 11/22/2022] Open
Abstract
This report describes the diagnostic process of a rare disorder in a Brazilian female child. The patient presented initially as a 7-year-old with multiple whitish submucosal nodules of a fibrous consistency in the lower lip, but with an inconclusive pathology report. When she turned 9 years of age, she presented with exacerbation of the original clinical findings, which then involved the upper lip, buccal mucosa, tongue and lingual frenulum. In addition, dermatological lesions were noted on the child's limbs and face, as well as a hoarse voice. Histopathological examination of the buccal mucosa revealed dense connective tissue with hyaline foci, which were positive with periodic acid-Schiff (PAS) staining and resistant to diastase digestion. Clinical and histopathological findings led to the diagnosis of a rare genetic disease with fewer than 300 reported cases - lipoid proteinosis. Magnetic resonance imaging revealed calcium deposits in her amygdaloid region of the brain, and nasopharyngolaryngoscopy revealed lesions in her vocal cords. The patient currently is stable and under multidisciplinary follow-up, but no treatment has been recommended to date.
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Affiliation(s)
- Alan Grupioni Lourenço
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, Ribeirão Preto, SP, Brazil.,Department of Oral Pathology, São Leopoldo Mandic, Campinas, SP, Brazil
| | | | | | - Marcelo Sperandio
- Department of Oral Pathology, São Leopoldo Mandic, Campinas, SP, Brazil
| | - Brad Wesley Neville
- Division of Oral Pathology, Department of Stomatology, Medical University of South Carolina, Charleston, SC, USA
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18
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Niederauer AJ, Guimarães RA, Oliveira KL, Pires AR, Demasi AP, Ferreira HH, Sperandio M, Napimoga MH, Peruzzo DC. H 2S in periodontal immuneinflammatory response and bone loss: a study in rats. Acta Odontol Latinoam 2019; 32:164-171. [PMID: 32176240] [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] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/01/2019] [Indexed: 06/10/2023]
Abstract
Halitosis is highly prevalent in periodontitis and attributed mainly to the presence of volatile sulfur compounds (VSC), where hydrogen sulfide (H2S) is the chief culprit in the characteristic malodor of periodontitis and thus may play an active role in its pathogenesis. The aim of this study was to evaluate the effect of H2S in the acute, intermediate and chronic immuneinflammatory host response and alveolar bone loss in vivo by using an animal model of induced periodontal disease. Thirtysix rats were divided into 2 groups: test group (n = 18), rats exposed to H2S (NaHS H2S donor molecule) and control group (n = 18), rats treated with saline only (Ctrl). All animals had one of their lower second molars ligated to induce periodontal disease (PD). The sound contralateral molar was used as control (H). Each group was subdivided into 3 (n = 6), according to followup time (3h, 5 days and 14 days). The gingival tissue was used for mRNA expression analysis (IL1, IL6, RANKL, OPG and SOFAT) by realtime PCR and the mandibles were analyzed morphometrically. Data analysis showed that the ligature promoted alveolar bone loss, observed mainly at 14 days, both in the group exposed to H2S and in the Ctrl group. H2S administration did not result in additional bone loss. Gene expression showed a significant increase in IL1, IL6, RANKL and SOFAT only in the CtrlPD group (p<0.05). A significant downregulation in OPG expression was observed over time in the CtrlPD group (p<0.05). In conclusion, H2S had no effect on alveolar bone loss in the absence of a ligature. In the presence of a ligature, however, exposure to H2S had an immunoregulatory effect on the expression of proinflammatory and proresorptive cytokines.
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Affiliation(s)
- Ana Js Niederauer
- Faculdade São Leopoldo Mandic, Departamento de Biologia Molecular,Campinas, Sao Paulo, Brasil
| | - Renan Ab Guimarães
- Faculdade São Leopoldo Mandic, Departamento de Periodontia, Campinas, Sao Paulo - Brasil
| | - Kepler Ls Oliveira
- Faculdade São Leopoldo Mandic, Departamento de Periodontia, Campinas, Sao Paulo - Brasil
| | - Adalberto R Pires
- Faculdade São Leopoldo Mandic, Departamento de Periodontia, Campinas, Sao Paulo - Brasil
| | - Ana Pd Demasi
- Faculdade São Leopoldo Mandic, Departamento de Periodontia, Campinas, Sao Paulo - Brasil
| | - Heloísa Ha Ferreira
- Faculdade São Leopoldo Mandic, Departamento de Biologia Molecular, Campinas, Sao Paulo, Brasil
| | - Marcelo Sperandio
- Faculdade São Leopoldo Mandic, Departamento de Periodontia, Campinas, Sao Paulo - Brasil
| | - Marcelo H Napimoga
- Faculdade São Leopoldo Mandic, Departamento de Periodontia, Campinas, Sao Paulo - Brasil
| | - Daiane C Peruzzo
- Faculdade São Leopoldo Mandic, Departamento de Periodontia, Campinas, Sao Paulo - Brasil.
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19
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Takemoto MM, Garcez AS, Sperandio M. High energy density LED-based photobiomodulation inhibits squamous cell carcinoma progression in co-cultures in vitro. Journal of Photochemistry and Photobiology B: Biology 2019; 199:111592. [DOI: 10.1016/j.jphotobiol.2019.111592] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 08/02/2019] [Accepted: 08/13/2019] [Indexed: 12/18/2022]
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20
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Mozo I, Bounouba M, Mengelle E, Lesage N, Sperandio M, Bessiere Y. Modelling PAHs removal in activated sludge process: effect of disintegration. Water Sci Technol 2019; 80:794-805. [PMID: 31661458 DOI: 10.2166/wst.2019.322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The removal of polycyclic aromatic hydrocarbons (PAHs) in activated sludge was evaluated using two laboratory-scale bioreactors, coupled or not with a disintegration system (sonication). Mass balances performed on each system underlined that PAHs removal was significantly improved after sludge disintegration, especially for the higher molecular weight PAHs studied, which tended to adsorb to suspended matter. A model was developed in order to study the effect of sludge disintegration on the content of dissolved and colloidal matter (DCM), and to predict the potential impacts on PAHs availability and degradation. Results showed that this new model was efficient for capturing apparent degradation improvement trends and for discriminating between the involved mechanisms. This study showed that DCM content increased after sludge disintegration, and proved to be the main driver for improving PAHs apparent degradation.
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Affiliation(s)
- I Mozo
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France E-mail: ; TOTAL SA - CSTJF, Avenue Larribau, 64000 Pau, France
| | - M Bounouba
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France E-mail:
| | - E Mengelle
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France E-mail:
| | - N Lesage
- TOTAL SA - CSTJF, Avenue Larribau, 64000 Pau, France
| | - M Sperandio
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France E-mail:
| | - Y Bessiere
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France E-mail:
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21
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Brown AL, Al-Samadi A, Sperandio M, Soares AB, Teixeira LN, Martinez EF, Demasi APD, Araújo VC, Leivo I, Salo T, Passador-Santos F. MiR-455-3p, miR-150 and miR-375 are aberrantly expressed in salivary gland adenoid cystic carcinoma and polymorphous adenocarcinoma. J Oral Pathol Med 2019; 48:840-845. [PMID: 31165496 DOI: 10.1111/jop.12894] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/29/2019] [Accepted: 06/03/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND Adenoid cystic carcinoma (AdCC) and polymorphous adenocarcinoma (PAC) are included among the most common salivary gland cancers. They share clinical and histological characteristics, making their diagnosis challenging in specific cases. MicroRNAs (miRNA) are short, non-coding RNA sequences of 19-25 nucleotides in length that are involved in post-transcriptional protein expression. They have been shown to play important roles in neoplastic and non-neoplastic processes and have been suggested as diagnostic and prognostic markers. METHODS This study, using quantitative RT-PCR, investigated miR-150, miR-455-3p and miR-375 expression, in order to identify a possible molecular distinction between AdCC and PAC. RESULTS miRNA-150 and miRNA-375 expression was significantly decreased in AdCC and PAC compared with salivary gland tissue controls, whilst miRNA-455-3p showed significantly increased expression in AdCC when compared to PAC, (P < 0.05). miR-150, miR-357 and miR-455-3p expression in AdCC, PAC and control was not associated with age, gender nor with anatomic site (major and minor salivary glands) (P > 0.05). CONCLUSION MiR-455-3p could be used as a complimentary tool in the diagnosis of challenging AdCC cases.
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Affiliation(s)
- Amy L Brown
- Department of Oral Pathology, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Ahmed Al-Samadi
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Marcelo Sperandio
- Department of Oral Pathology, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Andresa Borges Soares
- Department of Oral Pathology, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Lucas Novaes Teixeira
- Department of Oral Pathology, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Elizabeth F Martinez
- Department of Oral Pathology, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Ana Paula Dias Demasi
- Department of Oral Pathology, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Vera Cavalcanti Araújo
- Department of Oral Pathology, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
| | - Ilmo Leivo
- Institute of Biomedicine, Department of Pathology, University of Turku and Turku University Hospital, Turku, Finland
| | - Tuula Salo
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Cancer and Translational Medicine Research Unit, University of Oulu, Oulu, Finland.,Medical Research Centre, Oulu University Hospital, Oulu, Finland.,Helsinki University Hospital, Helsinki, Finland
| | - Fabricio Passador-Santos
- Department of Oral Pathology, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil
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22
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Napimoga MH, Clemente-Napimoga JT, Machabanski NM, Juliani MEA, Acras PHBC, Macedo CG, Abdalla HB, de Pinho AJ, Soares AB, Sperandio M, de Araújo DR. The 15d‑PGJ2 hydrogel ameliorates atopic dermatitis through suppression of the immune response. Mol Med Rep 2019; 19:4536-4544. [PMID: 31059034 PMCID: PMC6522822 DOI: 10.3892/mmr.2019.10156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 10/03/2018] [Accepted: 01/15/2019] [Indexed: 01/30/2023] Open
Abstract
The present study examined the efficacy of the topical 15d-PGJ2-poloxamer 407 hydrogel in an atopic dermatitis (AD) animal model. The 15d-PGJ2 hydrogel was prepared and characterized. The examined rats possessed AD-Like cutaneous lesions, which were induced using 2,4-dinitrochlorobenzene, the rats were then treated with a hydrogel vehicle, 15d-PGJ2 hydrogel or tacrolimus for 14 days. The rats were sacrificed and blood samples were collected to quantify the IgE levels. Subsequently, skin biopsies were stained with toluidine blue to identify mast cells and immunohistochemistry was performed for ROR-γt and TNF-α. Histological analyses demonstrated that 15d-PGJ2 hydrogel significantly decreased mast cell infiltration (P<0.05) when compared with the AD-group. Tacrolimus at 0.1% exhibited decreased mast cell infiltration; however, this difference was not statistically significant from the AD-group. Topical 15d-PGJ2 hydrogel and Tacrolimus 0.1% significantly reduced the serum levels of IgE (P<0.05) compared with the AD-group. Immunohistochemistry revealed a significant decrease in ROR-γt and TNF-α positive cell expression (P<0.05) in the 15d-PGJ2 hydrogel group compared with the AD-group. In summary, topical administration of 15d-PGJ2 hydrogel had a beneficial effect on AD symptoms, suggesting that this formulation may be a useful strategy for the treatment of AD.
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Affiliation(s)
- Marcelo H Napimoga
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045‑755, Brazil
| | - Juliana T Clemente-Napimoga
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045‑755, Brazil
| | - Nina M Machabanski
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045‑755, Brazil
| | - Maria Eduarda A Juliani
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045‑755, Brazil
| | - Pedro Henrique B C Acras
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045‑755, Brazil
| | - Cristina G Macedo
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045‑755, Brazil
| | - Henrique B Abdalla
- Laboratory of Orofacial Pain, Department of Physiology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo 13414‑903, Brazil
| | - Antônio José de Pinho
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045‑755, Brazil
| | - Andresa B Soares
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045‑755, Brazil
| | - Marcelo Sperandio
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045‑755, Brazil
| | - Daniele R de Araújo
- Center of Human and Natural Sciences, Federal University of ABC, Santo André, São Paulo 09210‑580, Brazil
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23
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Montalli VAM, Sperandio M, Soares AB, Neto ADA, Araújo VCD. Primary Squamous Cell Carcinoma of the Excretory Duct of the Submandibular Gland: A Rare Case. J Clin Diagn Res 2019. [DOI: 10.7860/jcdr/2019/38305.12464] [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: 11/24/2022]
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24
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Mello Dias ECLDCE, Sperandio M, Henrique Napimoga M. Association between implant abutment microgap and implant circularity to bacterial leakage - an in vitro study using tapered connection implants. Clin Oral Implants Res 2018. [DOI: 10.1111/clr.179_13358] [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] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Mozo I, Bounouba M, Mengelle E, Lesage N, Sperandio M, Bessiere Y. Modelling PAH partitioning during sludge disintegration: The key role of dissolved and colloidal matter. Chemosphere 2018; 209:883-891. [PMID: 30114737 DOI: 10.1016/j.chemosphere.2018.06.147] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 02/02/2018] [Revised: 06/20/2018] [Accepted: 06/23/2018] [Indexed: 06/08/2023]
Abstract
The partitioning between solids and the aqueous phase largely controls the fate of PAH compounds in biological treatment. The prediction of PAH sorption behaviour into activated sludge was investigated here. The suitability of a three-compartment model to describe partitioning in such a complex matrix was first evaluated by adding increasing quantities of dissolved and colloidal matter (DCM) (from 0 to 34.9% of the total matter). In a range of DCM concentrations varying from 0 to 1.4 g L-1, the PAH aqueous fraction, including both freely dissolved and sorbed to DCM molecules, increased from 9.9% to 33% for naphthalene (the most soluble PAH) and from 0.29% to 13.3% for indeno(1,2,3,c,d)pyrene (the least soluble PAH tested). The sorption of PAHs on dissolved and colloidal matter (DCM) was assessed by determining two partitioning constants (KPART and KDCM) for the 16 PAHs listed by the US EPA. New experiments were carried out for model validation and show that the model properly predicts the PAH partitioning following sludge disintegration by sonication.
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Affiliation(s)
- I Mozo
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France; TOTAL SA - CSTJF, Avenue Larribau, 64000, PAU, France
| | - M Bounouba
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | - E Mengelle
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | - N Lesage
- TOTAL SA - CSTJF, Avenue Larribau, 64000, PAU, France
| | - M Sperandio
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | - Y Bessiere
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France.
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26
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Brown AL, Sperandio M, Turssi CP, Leite RMA, Berton VF, Succi RM, Larson H, Napimoga MH. Vaccine confidence and hesitancy in Brazil. CAD SAUDE PUBLICA 2018; 34:e00011618. [PMID: 30281705 DOI: 10.1590/0102-311x00011618] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 04/18/2018] [Indexed: 11/22/2022] Open
Abstract
Despite the overall benefits of immunization, vaccine hesitancy has been a growing trend and has been associated with the resurgence of vaccine-preventable diseases. The aim of this study was to assess vaccine confidence and hesitancy in Brazil, as part of a wider project to map vaccine confidence globally. One thousand subjects were interviewed, either online or face-to-face, based on a general questionnaire regarding perceptions on vaccines and vaccination. Further exploratory questions were used with the subset of respondents who were parents of children aged under 5. Such questions extracted information regarding vaccination behavior, opinions on vaccination and government health services, and vaccine hesitancy. Reasons for hesitancy were classified as relating to confidence, convenience and/or complacency, and the population was also analyzed socio-demographically. The results showed that overall confidence in immunization was higher than confidence in family planning services, community health workers and emergency services. Seventy-six people reported hesitancy to vaccinate. The commonest reasons for hesitancy were issues with confidence (41.4%), efficacy/safety of the vaccine (25.5%) and concerns about adverse events (23.6%). The sociodemographic analysis revealed that vaccine hesitancy was associated with marital status, level of education and income. Despite overall vaccine confidence being high, a clear trend toward lower levels of confidence was associated with higher levels of hesitancy, which warrants on-going monitoring, due to the dynamic and changing nature of vaccine hesitancy.
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Affiliation(s)
| | | | | | | | | | | | - Heidi Larson
- London School of Hygiene and Tropical Medicine, London, U.K
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27
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Ghizoni JS, Sperandio M, Lock C, Odell EW. Image cytometry DNA ploidy analysis: Correlation between two semi-automated methods. Oral Dis 2018; 24:1204-1208. [PMID: 29757479 DOI: 10.1111/odi.12888] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/18/2018] [Accepted: 04/29/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVES Quantitation of cell DNA content, DNA ploidy, has been established as a research and prognostic technique for decades. A variety of instruments have been used although only a few commercially available systems have established quality assurance and published outcome data. The aim of this study was to compare two automated systems. METHODS Nuclear monolayers were obtained from 112 oral biopsies by enzyme digestion and Feulgen staining. These were scanned on both the Fairfield and the Ploidy Work Station (PWS) systems. The overall ploidy diagnosis, number of epithelial nuclei, coefficient of variation (CV) and 5c exceeding rate (5CER) were compared by quantile-quantile plots, t test, Wilcoxon and Spearman's tests. RESULTS The PWS system identified more nuclei (p < 0.0001) at a lower CV (p < 0.0001). Using the PWS system, fewer samples were classified as indeterminate. No difference between 5CER was found between systems (p > 0.54). There was complete concordance between the two systems in terms of DNA ploidy diagnosis. CONCLUSIONS The PWS system is comparable to the Fairfield system for determination of DNA ploidy and has advantages that may lead to improved performance.
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Affiliation(s)
- Janaina S Ghizoni
- Department of Oral Pathology & Medicine, University of South Santa Catarina (UNISUL), Tubarão, Brazil
| | - Marcelo Sperandio
- Department of Oral Pathology & Medicine, Sao Leopoldo Mandic Dental Institute and Research Center, Campinas, Brazil
| | - Claire Lock
- Head and Neck Pathology, Viapath LLC, Guy's Hospital, London, UK
| | - Edward W Odell
- Department of Oral Pathology, King's College London, Guy's Hospital, London, UK
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Martinez E, Ishikawa G, de Lemos A, Bezerra F, Sperandio M, Napimoga M. Evaluation of a Titanium Surface Treated with Hydroxyapatite Nanocrystals on Osteoblastic Cell Behavior: An In Vitro Study. Int J Oral Maxillofac Implants 2018; 33:597–602. [DOI: 10.11607/jomi.5887] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Dias E, Sperandio M, Napimoga M. Association Between Implant-Abutment Microgap and Implant Circularity to Bacterial Leakage: An In Vitro Study Using Tapered Connection Implants. Int J Oral Maxillofac Implants 2018; 33:505–511. [DOI: 10.11607/jomi.5836] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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De Cocker P, Bessiere Y, Hernandez-Raquet G, Dubos S, Mozo I, Gaval G, Caligaris M, Barillon B, Vlaeminck SE, Sperandio M. Enrichment and adaptation yield high anammox conversion rates under low temperatures. Bioresour Technol 2018; 250:505-512. [PMID: 29197773 DOI: 10.1016/j.biortech.2017.11.079] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 09/21/2017] [Revised: 11/16/2017] [Accepted: 11/23/2017] [Indexed: 06/07/2023]
Abstract
This study compared two anammox sequencing batch reactors (SBR) for one year. SBRconstantT was kept at 30 °C while temperature in SBRloweringT was decreased step-wise from 30 °C to 20 °C and 15 °C followed by over 140 days at 12.5 °C and 10 °C. High retention of anammox bacteria (AnAOB) and minimization of competition with AnAOB were key. 5-L anoxic reactors with the same inoculum were fed synthetic influent containing 25.9 mg NH4+-N/L and 34.1 mg NO2--N/L (no COD). Specific ammonium removal rates continuously increased in SBRconstantT, reaching 785 mg NH4+-N/gVSS/d, and were maintained in SBRloweringT, reaching 82.2 and 91.8 mg NH4+-N/gVSS/d at 12.5 and 10 °C respectively. AnAOB enrichment (increasing hzsA and 16S rDNA gene concentrations) and adaptation (shift from Ca. Brocadia to Ca. Kuenenia in SBRloweringT) contributed to these high rates. Rapidly settling granules developed, with average diameters of 1.2 (SBRconstantT) and 1.6 mm (SBRloweringT). Results reinforce the potential of anammox for mainstream applications.
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Affiliation(s)
- P De Cocker
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France; SUEZ, CIRSEE, Le Pecq, France; Center for Microbial Ecology and Technology (CMET), Ghent University, Gent, Belgium
| | - Y Bessiere
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | | | - S Dubos
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France
| | - I Mozo
- SUEZ, CIRSEE, Le Pecq, France
| | - G Gaval
- SUEZ, CIRSEE, Le Pecq, France
| | - M Caligaris
- SUEZ, Treatment Infrastructures, Rueil Malmaison, France
| | | | - S E Vlaeminck
- Center for Microbial Ecology and Technology (CMET), Ghent University, Gent, Belgium; Research Group of Sustainable Energy, Air and Water Technology, University of Antwerp, Antwerpen, Belgium
| | - M Sperandio
- LISBP, Université de Toulouse, CNRS, INRA, INSA, Toulouse, France.
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Navarini NF, De Araújo VC, Sperandio M, Napimoga MH, Teixeira LN, De Araújo NS, Martinez EF. Effect of epithelial growth factor on matrix metalloproteinase-2 and E-cadherin/β-catenin expression in an in situ model of tumorigenesis. Oncol Lett 2017; 14:3136-3140. [PMID: 28927057 DOI: 10.3892/ol.2017.6513] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 05/18/2017] [Indexed: 12/22/2022] Open
Abstract
The aim of the present study was to analyze the in vitro effect of various doses of epidermal growth factor (EGF; 5 and 10 ng/ml) on matrix metalloproteinase-2 (MMP-2) secretion and E-cadherin/β-catenin expression by co-cultured cells that mimic an in situ carcinoma ex-pleomorphic adenoma, where benign myoepithelial cells from a pleomorphic adenoma surround malignant epithelial cells. EGF was supplemented in various doses and the effects were evaluated following four days of cell culture. ELISA was performed to determine MMP-2 secretion levels. Gene expression for E-cadherin and β-catenin was analyzed using quantitative polymerase chain reaction. The results revealed that E-cadherin expression decreased when the cells were supplemented with 5 ng/ml EGF. ELISA results indicated that MMP-2 secretion increased when EGF was supplemented at concentrations of 5 and 10 ng/ml. The present findings demonstrated that EGF may be involved in the epithelial-mesenchymal transition process via altering the E-cadherin/β-catenin complex and increasing MMP-2 secretion, which may then favor the dissolution of the basement membrane to the benefit of malignant cell clusters, contributing to the development of an invasive phenotype in this in vitro model of tumorigenesis.
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Affiliation(s)
- Natalia Festugatto Navarini
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045-755, Brazil
| | - Vera Cavalcanti De Araújo
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045-755, Brazil
| | - Marcelo Sperandio
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045-755, Brazil
| | - Marcelo Henrique Napimoga
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045-755, Brazil
| | - Lucas Novaes Teixeira
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045-755, Brazil
| | - Ney Soares De Araújo
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045-755, Brazil
| | - Elizabeth Ferreira Martinez
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo 13045-755, Brazil
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Brod JM, Demasi APD, Montalli VA, Teixeira LN, Furuse C, Aguiar MC, Soares AB, Sperandio M, Araujo VC. Nrf2-peroxiredoxin I axis in polymorphous adenocarcinoma is associated with low matrix metalloproteinase 2 level. Virchows Arch 2017; 471:793-798. [DOI: 10.1007/s00428-017-2218-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 08/01/2017] [Accepted: 08/08/2017] [Indexed: 12/30/2022]
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Alaizari NA, Sperandio M, Odell EW, Peruzzo D, Al-Maweri SA. Meta-analysis of the predictive value of DNA aneuploidy in malignant transformation of oral potentially malignant disorders. J Oral Pathol Med 2017; 47:97-103. [PMID: 28612463 DOI: 10.1111/jop.12603] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/08/2017] [Indexed: 01/18/2023]
Abstract
DNA aneuploidy is an imbalance of chromosomal DNA content that has been highlighted as a predictor of biological behavior and risk of malignant transformation. To date, DNA aneuploidy in oral potentially malignant diseases (OPMD) has been shown to correlate strongly with severe dysplasia and high-risk lesions that appeared non-dysplastic can be identified by ploidy analysis. Nevertheless, the prognostic value of DNA aneuploidy in predicting malignant transformation of OPMD remains to be validated. The aim of this meta-analysis was to assess the role of DNA aneuploidy in predicting malignant transformation in OPMD. The questions addressed were (i) Is DNA aneuploidy a useful marker to predict malignant transformation in OPMD? (ii) Is DNA diploidy a useful negative marker of malignant transformation in OPMD? These questions were addressed using the PECO method. Five studies assessing aneuploidy as a risk marker of malignant change were pooled into the meta-analysis. Aneuploidy was found to be associated with a 3.12-fold increased risk to progress into cancer (RR=3.12, 95% CI 1.86-5.24). Based on the five studies meta-analyzed, "no malignant progression" was more likely to occur in DNA diploid OPMD by 82% when compared to aneuploidy (RR=0.18, 95% CI 0.08-0.41). In conclusion, aneuploidy is a useful marker of malignant transformation in OPMD, although a diploid result should be interpreted with caution.
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Affiliation(s)
- Nader A Alaizari
- Department of Oral Medicine and Diagnostic Sciences, Faculty of Dentistry, Al-Farabi Colleges, Riyadh, Saudi Arabia
| | - Marcelo Sperandio
- São Leopoldo Mandic Medical & Dental Institute and Research Center, Campinas, SP, Brazil
| | - Edward W Odell
- Head & Neck/Oral Pathology, King's College London, London, UK
| | - Daiane Peruzzo
- São Leopoldo Mandic Medical & Dental Institute and Research Center, Campinas, SP, Brazil
| | - Sadeq A Al-Maweri
- Department of Oral Medicine and Diagnostic Sciences, Faculty of Dentistry, Al-Farabi Colleges, Riyadh, Saudi Arabia
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Hasegawa I, Veríssimo C, Montalli VA, Sperandio M, Peruzzo DC. Effectiveness of a single-tuft toothbrush for control of newly formed dental biofilm. Braz J Oral Sci 2017. [DOI: 10.20396/bjos.v15i2.8648761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Aim: To compare the effectiveness of a single-tuft toothbrush (STB) with conventional toothbrushes (CT) to control dental biofilm neoformation in the dentogingival area. Methods: For this cross-sectional prospective blind study, 20 periodontally healthy subjects were selected and randomly divided into 4 groups: STB; CT; CHX - chlorhexidine mouthwash (positive control) and PS - placebo mouthwash (negative control). The subjects were instructed to use only the assigned care method for 72 h with a 7-day washout period between experiments. The evaluated parameters were visible and disclosed plaque indices (PI and DPI), gingival bleeding index (GBI) at baseline (T-0) and at the end of each experimental period (T-72). Results: Data analysis demonstrated that at T-0 no difference was observed for any of the parameters (p>0.05); after 72 h, CT, STB and CHX showed equivalente effectiveness at controlling biofilm. When the PI data were analyzed, between T-0 and T-72, STB was similar to CT and CHX (p<0.05), whereas for DPI, STB was significantly superior to the other methods. Except for PS, all methods yielded similar results for GBI (p<0.05). Conclusions: The tested STB was effective at controlling short-term dental biofilm neoformation on the dentogingival area.
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Teixeira LN, de Melo Garcia F, Montalli VÂM, Sperandio M, Martinez EF, Araújo VCD. Tumor necrosis factor-α did not enhance α-smooth muscle actin expression in fibroblastic cell cultures derived from healthy donors. Oral Oncol 2017; 64:e6-e7. [DOI: 10.1016/j.oraloncology.2016.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 10/16/2016] [Indexed: 12/17/2022]
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36
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Pelegrine AA, Teixeira ML, Sperandio M, Almada TS, Kahnberg KE, Pasquali PJ, Aloise AC. Can bone marrow aspirate concentrate change the mineralization pattern of the anterior maxilla treated with xenografts? A preliminary study. Contemp Clin Dent 2016; 7:21-6. [PMID: 27041895 PMCID: PMC4792049 DOI: 10.4103/0976-237x.177112] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objective: To evaluate bony reconstruction of the atrophic anterior maxilla using particulate grafts with or without autologous bone marrow aspirate concentrate (BMAC). Materials and Methods: Eight patients with atrophy of the anterior maxilla due to teeth loss were selected and split into groups according to the type of material used: Control Group (CG) (n = 4) - particulate xenograft only and Test Group (TG) (n = 4) - a combination of particulate xenograft and BMAC. Both groups received a collagen membrane to cover the xenograft. After 4 months, during implant placement, a sample of bone was removed from the graft area using a 2 mm diameter trephine bur. The specimens were fixed and preserved for histomorphometric evaluation, which included the following parameters: Mineralized tissue (MT) and non-MT (NMT). Cone beam computed tomography was performed at 3 time intervals to measure bone thickness: (1) Before grafting, (2) 4 months and (3) 8 months postgrafting, using localized bone gain (mm) as the outcome variable. Results: Tomographic analysis revealed bone gain in CG of 3.78 ± 1.35 mm and 4.34 ± 1.58 mm at 4 and 8 months, respectively. TG showed an increase of 3.79 ± 0.52 mm and 4.09 ± 1.33 mm after 4 and 8 months, respectively. Histomorphometric analysis revealed that, for CG, MT- and NMT-related values were 52.3% ± 16.78% and 47.70% ± 5.55%, respectively, whereas for TG, they were 65.04% ± 20.98% and 34.96 ± 10.38, respectively. Conclusion: Although radiographic bone gain appeared similar between the groups, the use of BMAC obtained via the BMAC® method revealed an increased mineralization trend in the anterior maxilla. It must be highlighted, however, that this is a preliminary study with a relatively small sample population and further studies with larger sample sizes are needed to verify these results.
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Affiliation(s)
- André Antonio Pelegrine
- Department of Implantology, São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
| | | | - Marcelo Sperandio
- Department of Implantology, São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
| | - Thiago Sousa Almada
- Department of Implantology, São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
| | - Karl Erik Kahnberg
- Department of Oral Surgery, University of Gothenburg, Gothenburg, Sweden
| | - Paulo José Pasquali
- Department of Implantology, São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
| | - Antonio Carlos Aloise
- Department of Implantology, São Leopoldo Mandic Institute and Research Center, Campinas, Brazil
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Sperandio M, Klinikowski MF, Brown AL, Shirlaw PJ, Challacombe SJ, Morgan PR, Warnakulasuriya S, Odell EW. Image-based DNA ploidy analysis aids prediction of malignant transformation in oral lichen planus. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 121:643-50. [PMID: 27084261 DOI: 10.1016/j.oooo.2016.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 01/03/2016] [Accepted: 02/16/2016] [Indexed: 10/22/2022]
Abstract
OBJECTIVES To investigate the potential of image-based DNA ploidy analysis to predict malignant transformation in patients with oral lichen planus (OLP). STUDY DESIGN DNA ploidy analysis was performed on biopsy samples from 14 patients with OLP who underwent malignant transformation. As controls, 42 OLP lesions showing unusual clinical features suggesting a transformation risk and 68 samples of clinically and histologically typical OLP were included. Cases with dysplasia on initial biopsy were excluded. Eighty fibroepithelial polyps acted as methodologic controls. Epithelial nuclei were isolated from formalin-fixed paraffin embedded biopsy samples and monolayers stained with Feulgen for automated image cytometry to establish DNA content. Ploidy status was correlated to outcome using Kaplan-Meier analysis and log-rank Mantel-Cox tests. RESULTS All controls and typical OLP were diploid and none underwent malignant transformation in mean follow-up of 14 years (10-18 years). One unusual OLP developed carcinoma and all were diploid. The 14 patients with transformation developed 21 carcinomas. In the 11 patients who had a prior biopsy, 4 were aneuploid. CONCLUSIONS DNA ploidy analysis predicted malignant transformation in more than one third (36.4%) of patients with OLP with a preceding biopsy (n = 11). This premalignant nature could not have been diagnosed clinically or by histologic dysplasia assessment.
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Affiliation(s)
- Marcelo Sperandio
- Department of Oral Pathology, King's College London, Guy's Hospital, London, United Kingdom; Department of Oral Pathology & Medicine, Sao Leopoldo Mandic Dental Institute and Research Center, Campinas-SP, Brazil.
| | - Myriam F Klinikowski
- Department of Oral Medicine, King's College London, King's College Hospital, London, United Kingdom
| | - Amy L Brown
- Department of Oral Pathology, King's College London, Guy's Hospital, London, United Kingdom; Department of Oral Pathology & Medicine, Sao Leopoldo Mandic Dental Institute and Research Center, Campinas-SP, Brazil
| | - Penelope J Shirlaw
- Department of Oral Medicine, King's College London, King's College Hospital, London, United Kingdom
| | - Stephen J Challacombe
- Department of Oral Medicine, King's College London, King's College Hospital, London, United Kingdom
| | - Peter R Morgan
- Department of Oral Pathology, King's College London, Guy's Hospital, London, United Kingdom
| | - Saman Warnakulasuriya
- Department of Oral Medicine, King's College London, King's College Hospital, London, United Kingdom
| | - Edward W Odell
- Department of Oral Pathology, King's College London, Guy's Hospital, London, United Kingdom
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Csépányi-Kömi R, Bartos B, Lévai P, Kurz A, Bierschenk S, Ligeti E, Sperandio M. A6.4 The possible role of ARHGAP25 in the regulation of leukocyte migration. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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39
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Zarbock A, Ley K, Sperandio M. Leukocyte trafficking across the vessel wall: to be published in 2015. Cardiovasc Res 2014. [DOI: 10.1093/cvr/cvu219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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40
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Sperandio M, Brown AL, Lock C, Morgan PR, Coupland VH, Madden PB, Warnakulasuriya S, Møller H, Odell EW. Predictive Value of Dysplasia Grading and DNA Ploidy in Malignant Transformation of Oral Potentially Malignant Disorders. Cancer Prev Res (Phila) 2013; 6:822-31. [DOI: 10.1158/1940-6207.capr-13-0001] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Mozo I, Lesage G, Yin J, Bessiere Y, Barna L, Sperandio M. Dynamic modeling of biodegradation and volatilization of hazardous aromatic substances in aerobic bioreactor. Water Res 2012; 46:5327-5342. [PMID: 22877879 DOI: 10.1016/j.watres.2012.07.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 07/09/2012] [Accepted: 07/10/2012] [Indexed: 06/01/2023]
Abstract
The aerobic biological process is one of the best technologies available for removing hazardous organic substances from industrial wastewaters. But in the case of volatile organic compounds (benzene, toluene, ethylbenzene, p-xylene, naphthalene), volatilization can contribute significantly to their removal from the liquid phase. One major issue is to predict the competition between volatilization and biodegradation in biological process depending on the target molecule. The aim of this study was to develop an integrated dynamic model to evaluate the influence of operating conditions, kinetic parameters and physical properties of the molecule on the main pathways (biodegradation and volatilization) for the removal of Volatile Organic Compounds (VOC). After a comparison with experimental data, sensitivity studies were carried out in order to optimize the aerated biological process. Acclimatized biomass growth is limited by volatilization, which reduces the bioavailability of the substrate. Moreover, the amount of biodegraded substrate is directly proportional to the amount of active biomass stabilized in the process. Model outputs predict that biodegradation is enhanced at high SRT for molecules with low H and with a high growth rate population. Air flow rate should be optimized to meet the oxygen demand and to minimize VOC stripping. Finally, the feeding strategy was found to be the most influential operating parameter that should be adjusted in order to enhance VOC biodegradation and to limit their volatilization in sequencing batch reactors (SBR).
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Affiliation(s)
- I Mozo
- Université de Toulouse, INSA, UPS, INP, LISBP, 135 Avenue de Rangueil, F-31077 Toulouse, France
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Warnakulasuriya S, Kovacevic T, Madden P, Coupland VH, Sperandio M, Odell E, Møller H. Factors predicting malignant transformation in oral potentially malignant disorders among patients accrued over a 10-year period in South East England. J Oral Pathol Med 2011; 40:677-83. [DOI: 10.1111/j.1600-0714.2011.01054.x] [Citation(s) in RCA: 151] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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43
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Nardi P, Pellegrino A, Romagnoli A, Mve Mvondo C, De Propris S, Sperandio M, Versaci F, Simonetti G, Chiariello L. Multidetector computed tomographic coronary angiography as an alternative to conventional coronary angiography in non-coronary surgical patients. J Cardiovasc Surg (Torino) 2011; 52:429-435. [PMID: 21577196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
AIM Aim of our study was to evaluate multidetector 64-slice spiral computed tomography (MSCT) as an alternative to traditional coronary angiography (CA) to detect concomitant coronary artery disease (CAD) in patients initially admitted for non-coronary surgical procedures. METHODS We have analyzed data of 380 consecutive patients operated from 2006 to 2008 initially admitted for aortic (N.=170) or mitral (N.=67) valve disease, ascending aorta aneurysm ± aortic valve disease (N.=99), and other (combined valve diseases, tumors; N.=44). These patients were submitted either to MSCT (Group CT, N.=112) or to CA (Group A, N.=268). Inclusion criteria to perform MSCT were no previous myocardial infarction or documented CAD, normal left ventricular function, sinus rhythm, less than 2-3 premature ventricular or atrial contractions /min. RESULTS In Group CT, CAD was definitively excluded in 95 patients (85%) and was detected in 17; 8 of those 17 patients were subsequently submitted to CA and coronary artery bypass surgery for significant CAD. As compared to those in Group A, patients in Group CT were younger (64±15 vs. 70±10 years, P<0.0001), had less hypertension (P=0.0001), chest pain (P<0.05), peripheral vascular disease (P<0.05). NYHA class, incidence of diabetes, smoking habit, family history of CAD were similar. The incidence of operative mortality, postoperative myocardial infarction was not significantly different in both Group CT (0%) and A (0.4%) (P=NS). CONCLUSION In selected cardiac surgical patients less invasive 64-slice MSCT can be with some limits an alternative to CA to rule out CAD, as confirmed by the absence of postoperative ischemic complications.
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Affiliation(s)
- P Nardi
- Department of Cardiac Surgery, Policlinico Tor Vergata, Tor Vergata University of Rome, Rome, Italy.
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Steppner A, Nussbaum C, Schmidt S, Hofmann S, Kuhn C, Bierschenk S, Sperandio M, Jeschke U, Friese K. Veränderung der intrazellulären Glykosyltransferasenkonzentration während der Embryonalentwicklung. Geburtshilfe Frauenheilkd 2011. [DOI: 10.1055/s-0031-1278575] [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: 10/18/2022] Open
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45
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Romagnoli A, Sperandio M, Di Roma M, Giura S, Cicciò C, Della Gatta F, Simonetti G. Anatomical and functional evaluation of the myocardium in patients with acute coronary syndrome (NSTEMI) using MR imaging. Radiol Med 2010; 116:163-77. [PMID: 21311993 DOI: 10.1007/s11547-010-0609-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2009] [Accepted: 03/09/2010] [Indexed: 12/16/2022]
Abstract
PURPOSE The aim of our study was to evaluate the role of magnetic resonance (MR) imaging in identifying the location and extent of acute ischaemic injury to predict reversibility and distinguish areas of acute from chronic ischaemia in patients with acute coronary syndrome non- ST-elevation myocardial infarction (NSTEMI). MATERIALS AND METHODS We evaluated 22 patients with NSTEMI acute coronary syndrome confirmed by coronary angiography (CA). We studied ventricular function indices and segmental changes in wall thickness and kinetics by cine-MR imaging sequences. Subsequently, we evaluated myocardial wall oedema with T2-weighted black-blood short-tau inversion recovery turbo spin echo (T2 BB-STIRTSE) sequences and identified areas of myocardial necrosis using T1-weighted turbo field-echo inversion recovery (T1 TFE-IR) sequences after contrast material administration. RESULTS The results obtained with the single sequences were as follows: T2 BB-STIR-TSE: 96.8% sensitivity, 100% specificity, 99.7% negative predictive value, 99.7% positive predictive value; T1 TFE-IR: 45.8% sensitivity, 96.9% specificity, 92.3% negative predictive value, 90.3% positive predictive value; systolic wall thickening: 87.5% sensitivity, 91.8% specificity, 98.7% negative predictive value, 50% positive predictive value, 91.4% accuracy. CONCLUSIONS Our study suggests that the sequences used for evaluating oedema and assessing viability allow for precise localisation and differentiation of areas of acute and chronic ischaemia by quantifying the possible mismatch between ischaemia and necrosis.
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Affiliation(s)
- A Romagnoli
- Terapia Radiante, Università degli studi di Roma "Tor Vergata" (PTV), Viale Oxford 81, 00133, Roma, Italy
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Romagnoli A, Patrei A, Mancini A, Arganini C, Vanni S, Sperandio M, Simonetti G. Diagnostic accuracy of 64-slice CT in evaluating coronary artery bypass grafts and of the native coronary arteries. Radiol Med 2010; 115:1167-78. [PMID: 20852959 DOI: 10.1007/s11547-010-0580-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Accepted: 02/09/2010] [Indexed: 11/24/2022]
Abstract
PURPOSE Our aim was to evaluate the accuracy, sensitivity and specificity of 64-slice multidetector computed tomography (MDCT) in the assessment of occlusions and stenoses of arterial and venous bypass grafts and disease progression in the native vessels distal to the graft, and to compare the results with those of conventional coronary angiography. MATERIALS AND METHODS We enrolled 78 individuals (45 men, 33 women; mean age 59) and evaluated 213 bypass grafts using a 64-slice MDCT scanner. All patients underwent conventional coronary angiography with a mean time interval between the two examinations of 2 days. RESULTS One patient was excluded due to arrhythmia during the examination. The 212 bypass grafts in the remaining 77 patients (98.7%) consisted of 115 (54%) venous grafts and 97 (46%) arterial grafts. In the 115 venous grafts, MDCT showed a sensitivity, specificity and accuracy of 100% in evaluating occluded grafts and a sensitivity of 94.4%, specificity of 98.4% and accuracy of 96.9% in evaluating significant stenoses. In evaluating occluded arterial grafts, sensitivity was 83.3%, specificity 100% and accuracy 98.9%, whereas in evaluating stenoses of arterial grafts, sensitivity was 100%, specificity 97.7% and accuracy 98%. CONCLUSIONS Sensitivity, specificity and accuracy in evaluating native coronary vessels distal to the graft allow for a complete assessment of the surgical and native circulation. The examination appears therefore to be exhaustive in ruling out or confirming the presence of diseased vessels in the postoperative follow-up.
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Affiliation(s)
- A Romagnoli
- Dipartimento di Diagnostica per Immagini, Imaging Molecolare, Radiologia Interventistica e Radioterapia, Università di Tor Vergata, Viale Oxford 81, Rome, Italy
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Gloning A, Nussbaum C, Genzel-Boroviczény O, Sperandio M. Ontogenese der humanen Leukozytenrekrutierung: funktionelle Reifung von neutrophilen Granulozyten und Endothelzellen in Abhängigkeit vom Gestationsalter. Klin Padiatr 2010. [DOI: 10.1055/s-0030-1261476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Nussbaum C, Klinke A, Genzel-Boroviczény O, Baldus S, Sperandio M. Myeloperoxidase triggert die Rekrutierung neutrophiler Granulozyten über das Beta-2 Integrin Mac-1 (CD11b/CD18). Klin Padiatr 2010. [DOI: 10.1055/s-0030-1261478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ryschich E, Kerkadze V, Deduchovas O, Salnikova O, Parseliunas A, Märten A, Hartwig W, Sperandio M, Schmidt J. Intracapillary leucocyte accumulation as a novel antihaemorrhagic mechanism in acute pancreatitis in mice. Gut 2009; 58:1508-16. [PMID: 19460768 DOI: 10.1136/gut.2008.170001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
BACKGROUND Pancreatic infiltration by leucocytes represents a hallmark in acute pancreatitis. Although leucocytes play an active role in the pathophysiology of this disease, the relation between leucocyte activation, microvascular injury and haemorrhage has not been adequately addressed. METHODS We investigated intrapancreatic leucocyte migration, leucocyte extravasation and pancreatic microperfusion in different models of oedematous and necrotising acute pancreatitis in lys-EGFP-ki mice using fluorescent imaging and time-lapse intravital microscopy. RESULTS In contrast to the current paradigm of leucocyte recruitment, the initial event of leucocyte activation in acute pancreatitis was represented through a dose- and time-dependent occlusion of pancreatic capillaries by intraluminally migrating leucocytes. Intracapillary leucocyte accumulation (ILA) resulted in dense filling of almost all capillaries close to the area of inflammation and preceded transvenular leucocyte extravasation. ILA was also initiated by isolated exposure of the pancreas to interleukin 8 or fMLP, demonstrating the causal role of chemotactic stimuli in the induction of ILA. The onset of intracapillary leucocyte accumulation was strongly inhibited in LFA-1(-/-) and ICAM-1(-/-) mice, but not in Mac-1(-/-) mice. Moreover, prevention of intracapillary leucocyte accumulation led to the development of massive capillary haemorrhages and transformed mild pancreatitis into lethal haemorrhagic disease. CONCLUSIONS ILA represents a novel protective and potentially lifesaving mechanism of haemostasis in acute pancreatitis. This process depends on expression of LFA-1 and ICAM-1 and precedes the classical steps of the leucocyte recruitment cascade.
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Affiliation(s)
- E Ryschich
- Department of Surgery, Im Neuenheimer Feld 110, University of Heidelberg, Heidelberg 69120, Germany.
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Sperandio M, Pambrun V, Paul E. Simultaneous removal of N and P in a SBR with production of valuable compounds: application to concentrated wastewaters. Water Sci Technol 2008; 58:859-864. [PMID: 18776622 DOI: 10.2166/wst.2008.345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This article examines the optimisation of recovery of phosphorus and nitrogen (via struvite) in small treatment units for high strength wastewaters using biologically assisted precipitation. The particular focus was the synergetic effect between removal of orthophosphate and the biological reactions occurring during nitrogen removal. The most sensitive parameter influencing the phosphate solid forms (HAP, MAP) is pH. Sequencing batch mode helps maintain high gradients in ammonia concentration, which encourages struvite precipitation. Nitrification has a key effect on the precipitation, through its influence on pH and ammonia concentration, determining the remaining soluble phosphorus concentration. Denitrification and CO(2) stripping, by increasing pH also improve precipitation of phosphorus. Optimal operating conditions will therefore depend on the chosen strategy: thus nitrification may help to keep phosphorus in a soluble form (as needed in direct urine reuse), whereas if co-precipitation is desired in the biological reactor, nitrification should be controlled in relation with others processes responsible for pH increase.
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Affiliation(s)
- M Sperandio
- LISBP, UMR5504, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, CNRS, INRA, INSA, Toulouse, France
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