167 results on '"Costa ME"'
Search Results
2. Health-related quality of life and chronic pain experience in rheumatic diseases
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Oliveira, P, Monteiro, P, Coutinho, M, Salvador, MJ, Costa, ME, and Malcata, AB
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Doenças Reumáticas ,Qualidade de Vida - Abstract
Objectives: To assess differences among health-related quality of life, pain threshold and perception, and passive coping strategies with chronic pain (specifically retreating, worrying, and resting), as well as associations among variables in three groups of rheumatic patients – fibromyalgia (FM), rheumatoid arthritis (RA), and osteoarthritis (OA). Material and methods: 86 participants diagnosed with FM (n = 25), RA (n = 31) and OA (n = 30) completed the following measures: Clinical and Sociodemographic Questionnaire (QSDC), Medical Outcomes Study 36-item Short Form Health Survey (SF-36v2), Pain Coping Inventory (PCI), visual analogic scale (VAS) for pain, and dolorimeter for threshold pain. SPSS software was used to perform statistical analyses. Results: FM patients reported the lowest levels of quality of life and threshold pain, as well as the highest levels of pain perception and passive coping with chronic pain. Associations between variables support that experience with chronic pain is managed more successfully in OA patients, followed by RA patients and, finally, by FM patients. Conclusions: Our findings support the adoption of a biopsychosocial model for assessment and intervention with rheumatic patients, considering specificities associated to each illness.
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- 2009
3. TTF-1, a homeodomain-containing transcription factor, participates in the control of body fluid homeostasis by regulating angiotensinogen gene transcription in the rat subfornical organ
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Son, Yj, Hur, Mk, Ryu, Bj, Park, Sk, Damante, Giuseppe, D'Elia, Av, Costa, Me, Ojeda, Sr, and Lee, Bj
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- 2003
4. Neurotrophins and the neuroendocrine brain: different neurotrophins sustain anatomically and functionally segregated subsets of hypothalamic dopaminergic neurons
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Berg-von der Emde, K, primary, Dees, WL, additional, Hiney, JK, additional, Hill, DF, additional, Dissen, GA, additional, Costa, ME, additional, Moholt- Siebert, M, additional, and Ojeda, SR, additional
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- 1995
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5. Hypothalamic lesions that induce female precocious puberty activate glial expression of the epidermal growth factor receptor gene: differential regulation of alternatively spliced transcripts
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Junier, MP, primary, Hill, DF, additional, Costa, ME, additional, Felder, S, additional, and Ojeda, SR, additional
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- 1993
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6. (+)-trans-Chlorido{2-[(Rp)-2-(methylsulfanyl)ferrocenyl]-2,5,6,7-tetrahydropyrrolo[1,2-c]imidazol-3-ylidene}bis(triphenylphosphane-κP)palladium(II) hexafluoridophosphate dichloroform disolvate
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Cody Wilson-Konderka, Alan J. Lough, and Costa Metallinos
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crystal structure ,N-heterocyclic carbene ,palladium ,thioether ,planar chiral ,pyrroloimidazolium ,Crystallography ,QD901-999 - Abstract
The title solvated complex, [FePd(C5H5)(C12H13N2S)Cl(C18H15P)2]PF6·2CHCl3, bearing a chiral ferrocenyl pyrroloimidazolylidene N-heterocyclic carbene (NHC) ligand, was synthesized by oxidative addition of a chloroimidazolium salt to Pd(PPh3)4. The PdII ion is coordinated in a slightly distorted square-planar coordination geometry, with the Cl atom trans to the coordinating C atom of the pyrroloimidazolylidene ligand. The complex features a pendant thioether group that is not involved in coordination to Pd. In the crystal, weak C—H...F and C—H...π interactions connect the components of the structure, forming chains propagating along [1-10]. The fused pyrrolidine ring is in an envelope conformation, and the flap atom was refined as disordered over two sets of sites, with occupancies of 0.77 (4) and 0.23 (4).
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- 2016
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7. Essential oils of Toona and Cedrela Species (Meliaceae): taxonomic and ecological implications
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Maia Beatriz H. L. N. S., Paula José R. de, Sant'Ana Josué, Silva M. Fátima das G. F. da, Fernandes João B., Vieira Paulo C., Costa Merilene do S. S., Ohashi Orlando S., and Silva José Natalino M.
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Meliaceae ,essential oil ,chemotaxonomy ,electroantennogram ,gas chromatography-electroantennographic detection ,Chemistry ,QD1-999 - Abstract
The essential oils of Toona ciliata, Cedrela odorata and C. fissilis have been analysed by GC-MS. Cedrela contains the main sesquiterpenes formed from the cis- and trans-farnesyl pyrophosphate. In contrast, Toona tend to produce mainly sesquiterpenes formed from the trans-precursor. These results show that the affiliation of Toona in the tribe Cedreleae together with Cedrela is still rather problematic. Mean electroantennogram responses (EAGs) to the essential oils from T. ciliata and C. odorata, in Hypsipyla grandella females were significantly greater than those obtained for males, suggesting that females would use attractant odours messages from the host-plant (genera of Swietenioideae) as search strategy behaviour for habitat location and oviposition.
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- 2000
8. Laparoscopic approach for very large benign ovarian cyst in young woman
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Tagliabue Fulvio, Acquaro Paola, Confalonieri Gianmaria, Spagnolo Salvatore, Romelli Antonio, and Costa Melchiorre
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Benign ovarian cyst ,laparoscopy ,ovary ,Surgery ,RD1-811 ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Ovarian cysts are the most common cause of pelvic masses in women, and in the majority of the cases, women are in their fertile age. Today, the surgical treatment has become more conservative and less invasive; hence, a laparoscopic approach in the presence of benign cysts has become a gold standard. Herein, we report a case of a 21-year-old woman referred to our Surgical Department for an abdominal mass, discovered with a computerised tomographic scan, of 20x10 x 25cm arising from the left ovary, treated with the laparoscopic approach.
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- 2009
9. Clinical snapshot. Trigeminal neuralgia.
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Costa ME
- Abstract
Excruciating pain around lips, forehead, or cheek, signals this common neuropathy. [ABSTRACT FROM AUTHOR]
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- 1998
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10. Trem2-expressing multinucleated giant macrophages are a biomarker of good prognosis in head and neck squamous cell carcinoma.
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Gessain G, Anzali AA, Lerousseau M, Mulder K, Bied M, Auperin A, Stockholm D, Signolle N, Sassi F, Marques Da Costa ME, Marchais A, Sayadi A, Weidner D, Uderhardt S, Blampey Q, Nakkireddy SR, Broutin S, Dutertre CA, Busson P, Walter T, Marhic A, Moya-Plana A, Guerlain J, Breuskin I, Casiraghi O, Gorphe P, Classe M, Scoazec JY, Bleriot C, and Ginhoux F
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Patients with head and neck squamous cell carcinomas (HNSCC) often have poor outcomes due to suboptimal risk-management and treatment strategies; yet integrating novel prognostic biomarkers into clinical practice is challenging. Here, we report the presence of multinucleated giant cells (MGC) - a type of macrophages - in tumors from patients with HNSCC, which are associated with a favorable prognosis in treatment-naive and preoperative-chemotherapy-treated patients. Importantly, MGC density increased in tumors following preoperative therapy, suggesting a role of these cells in the anti-tumoral response. To enable clinical translation of MGC density as a prognostic marker, we developed a deep-learning model to automate its quantification on routinely stained pathological whole slide images. Finally, we used spatial transcriptomic and proteomic approaches to describe the MGC-related tumor microenvironment and observed an increase in central memory CD4 T cells. We defined an MGC-specific signature resembling to TREM2-expressing mononuclear tumor associated macrophages, which co-localized in keratin tumor niches.
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- 2024
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11. Single-cell multiomics profiling reveals heterogeneous transcriptional programs and microenvironment in DSRCTs.
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Henon C, Vibert J, Eychenne T, Gruel N, Colmet-Daage L, Ngo C, Garrido M, Dorvault N, Marques Da Costa ME, Marty V, Signolle N, Marchais A, Herbel N, Kawai-Kawachi A, Lenormand M, Astier C, Chabanon R, Verret B, Bahleda R, Le Cesne A, Mechta-Grigoriou F, Faron M, Honoré C, Delattre O, Waterfall JJ, Watson S, and Postel-Vinay S
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- Humans, Gene Expression Profiling methods, Transcriptome genetics, Female, Male, Transcription, Genetic, Multiomics, Single-Cell Analysis methods, Tumor Microenvironment genetics, Gene Expression Regulation, Neoplastic
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Desmoplastic small round cell tumor (DSRCT) is a rare, aggressive sarcoma driven by the EWSR1::WT1 chimeric transcription factor. Despite this unique oncogenic driver, DSRCT displays a polyphenotypic differentiation of unknown causality. Using single-cell multi-omics on 12 samples from five patients, we find that DSRCT tumor cells cluster into consistent subpopulations with partially overlapping lineage- and metabolism-related transcriptional programs. In vitro modeling shows that high EWSR1::WT1 DNA-binding activity associates with most lineage-related states, in contrast to glycolytic and profibrotic states. Single-cell chromatin accessibility analysis suggests that EWSR1::WT1 binding site variability may drive distinct lineage-related transcriptional programs, supporting some level of cell-intrinsic plasticity. Spatial transcriptomics reveals that glycolytic and profibrotic states specifically localize within hypoxic niches at the periphery of tumor cell islets, suggesting an additional role of tumor cell-extrinsic microenvironmental cues. We finally identify a single-cell transcriptomics-derived epithelial signature associated with improved patient survival, highlighting the clinical relevance of our findings., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2024. Published by Elsevier Inc.)
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- 2024
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12. From biology to personalized medicine: Recent knowledge in osteosarcoma.
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Mohr A, Marques Da Costa ME, Fromigue O, Audinot B, Balde T, Droit R, Abbou S, Khneisser P, Berlanga P, Perez E, Marchais A, and Gaspar N
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- Humans, Osteosarcoma genetics, Osteosarcoma pathology, Precision Medicine methods, Bone Neoplasms genetics, Bone Neoplasms pathology, Bone Neoplasms therapy
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High-grade osteosarcoma is the most common paediatric bone cancer. More than one third of patients relapse and die of osteosarcoma using current chemotherapeutic and surgical strategies. To improve outcomes in osteosarcoma, two crucial challenges need to be tackled: 1-the identification of hard-to-treat disease, ideally from diagnosis; 2- choosing the best combined or novel therapies to eradicate tumor cells which are resistant to current therapies leading to disease dissemination and metastasize as well as their favorable microenvironment. Genetic chaos, tumor complexity and heterogeneity render this task difficult. The development of new technologies like next generation sequencing has led to an improvement in osteosarcoma oncogenesis knownledge. This review summarizes recent biological and therapeutical advances in osteosarcoma, as well as the challenges that must be overcome in order to develop personalized medicine and new therapeutic strategies and ultimately improve patient survival., (Copyright © 2024. Published by Elsevier Masson SAS.)
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- 2024
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13. CellsFromSpace: a fast, accurate, and reference-free tool to deconvolve and annotate spatially distributed omics data.
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Thuilliez C, Moquin-Beaudry G, Khneisser P, Marques Da Costa ME, Karkar S, Boudhouche H, Drubay D, Audinot B, Geoerger B, Scoazec JY, Gaspar N, and Marchais A
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Motivation: Spatial transcriptomics enables the analysis of cell crosstalk in healthy and diseased organs by capturing the transcriptomic profiles of millions of cells within their spatial contexts. However, spatial transcriptomics approaches also raise new computational challenges for the multidimensional data analysis associated with spatial coordinates., Results: In this context, we introduce a novel analytical framework called CellsFromSpace based on independent component analysis (ICA), which allows users to analyze various commercially available technologies without relying on a single-cell reference dataset. The ICA approach deployed in CellsFromSpace decomposes spatial transcriptomics data into interpretable components associated with distinct cell types or activities. ICA also enables noise or artifact reduction and subset analysis of cell types of interest through component selection. We demonstrate the flexibility and performance of CellsFromSpace using real-world samples to demonstrate ICA's ability to successfully identify spatially distributed cells as well as rare diffuse cells, and quantitatively deconvolute datasets from the Visium, Slide-seq, MERSCOPE, and CosMX technologies. Comparative analysis with a current alternative reference-free deconvolution tool also highlights CellsFromSpace's speed, scalability and accuracy in processing complex, even multisample datasets. CellsFromSpace also offers a user-friendly graphical interface enabling non-bioinformaticians to annotate and interpret components based on spatial distribution and contributor genes, and perform full downstream analysis., Availability and Implementation: CellsFromSpace (CFS) is distributed as an R package available from github at https://github.com/gustaveroussy/CFS along with tutorials, examples, and detailed documentation., Competing Interests: None declared., (© The Author(s) 2024. Published by Oxford University Press.)
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- 2024
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14. Assessing robustness and generalization of a deep neural network for brain MS lesion segmentation on real-world data.
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Chaves H, Serra MM, Shalom DE, Ananía P, Rueda F, Osa Sanz E, Stefanoff NI, Rodríguez Murúa S, Costa ME, Kitamura FC, Yañez P, Cejas C, Correale J, Ferrante E, Fernández Slezak D, and Farez MF
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- Humans, Neural Networks, Computer, Algorithms, Brain diagnostic imaging, Brain pathology, Magnetic Resonance Imaging methods, Multiple Sclerosis diagnostic imaging, Multiple Sclerosis pathology
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Objectives: Evaluate the performance of a deep learning (DL)-based model for multiple sclerosis (MS) lesion segmentation and compare it to other DL and non-DL algorithms., Methods: This ambispective, multicenter study assessed the performance of a DL-based model for MS lesion segmentation and compared it to alternative DL- and non-DL-based methods. Models were tested on internal (n = 20) and external (n = 18) datasets from Latin America, and on an external dataset from Europe (n = 49). We also examined robustness by rescanning six patients (n = 6) from our MS clinical cohort. Moreover, we studied inter-human annotator agreement and discussed our findings in light of these results. Performance and robustness were assessed using intraclass correlation coefficient (ICC), Dice coefficient (DC), and coefficient of variation (CV)., Results: Inter-human ICC ranged from 0.89 to 0.95, while spatial agreement among annotators showed a median DC of 0.63. Using expert manual segmentations as ground truth, our DL model achieved a median DC of 0.73 on the internal, 0.66 on the external, and 0.70 on the challenge datasets. The performance of our DL model exceeded that of the alternative algorithms on all datasets. In the robustness experiment, our DL model also achieved higher DC (ranging from 0.82 to 0.90) and lower CV (ranging from 0.7 to 7.9%) when compared to the alternative methods., Conclusion: Our DL-based model outperformed alternative methods for brain MS lesion segmentation. The model also proved to generalize well on unseen data and has a robust performance and low processing times both on real-world and challenge-based data., Clinical Relevance Statement: Our DL-based model demonstrated superior performance in accurately segmenting brain MS lesions compared to alternative methods, indicating its potential for clinical application with improved accuracy, robustness, and efficiency., Key Points: • Automated lesion load quantification in MS patients is valuable; however, more accurate methods are still necessary. • A novel deep learning model outperformed alternative MS lesion segmentation methods on multisite datasets. • Deep learning models are particularly suitable for MS lesion segmentation in clinical scenarios., (© 2023. The Author(s), under exclusive licence to European Society of Radiology.)
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- 2024
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15. Connecting Clinical Capacity and Intervention Sustainability in Resource-Variable Pediatric Oncology Centers in Latin America.
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McKay V, Chen Y, Prewitt K, Malone S, Puerto-Torres M, Acuña-Aguirre C, Alfonso-Carreras Y, Alvarez-Arellano SY, Andrade-Sarmiento LA, Arce-Cabrera D, Argüello-Vargas D, Barragán-García MDC, Batista-Del-Cid R, Blasco-Arriaga EE, Cach-Castaneda MDC, Ceballo-Batista GI, Chávez-Rios M, Costa ME, Cuencio-Rodriguez ME, Diaz-Coronado R, Fing-Soto EA, García-Sarmiento TDJ, Gómez-García WC, Hernández-González CJ, Jimenez-Antolinez YV, Juarez-Tobias MS, León-López EM, Lopez-Facundo NA, Martínez Soria RA, Miralda-Méndez ST, Montalvo E, Pérez-Alvarado CM, Perez-Fermin CK, Quijano-Lievano ML, Salas-Mendoza B, Sanchez-Fuentes EE, Serrano-Landivar MX, Soto-Chavez V, Tejocote-Romero I, Valle S, Vasquez-Roman EA, Costa JT, Cardenas-Aguirre A, Devidas M, Luke DA, and Agulnik A
- Abstract
Clinical capacity for sustainability, or the clinical resources needed to sustain an evidence-based practice, represent proximal determinants that contribute to intervention sustainment. We examine the relationship between clinical capacity for sustainability and sustainment of PEWS, an evidence-based intervention to improve outcomes for pediatric oncology patients in resource-variable hospitals. We conducted a cross-sectional survey among Latin American pediatric oncology centers participating in Proyecto Escala de Valoración de Alerta Temprana (EVAT), an improvement collaborative to implement Pediatric Early Warning Systems (PEWS). Hospitals were eligible if they had completed PEWS implementation. Clinicians were eligible to participate if they were involved in PEWS implementation or used PEWS in clinical work. The Spanish language survey consisted of 56 close and open-ended questions about the respondent, hospital, participants' assessment of clinical capacity to sustain PEWS using the clinical sustainability assessment tool (CSAT), and perceptions about PEWS and its use as an intervention. Results were analyzed using a multi-level modeling approach to examine the relationship between individual, hospital, intervention, and clinical capacity determinants to PEWS sustainment. A total of 797 responses from 37 centers in 13 countries were included in the analysis. Eighty-seven percent of participants reported PEWS sustainment. After controlling for individual, hospital, and intervention factors, clinical capacity was significantly associated with PEWS sustainment (OR 3.27, p < .01). Marginal effects from the final model indicate that an increasing capacity score has a positive influence (11% for every additional CSAT point) of predicting PEWS sustainment. PEWS is a sustainable intervention and clinical capacity to sustain PEWS contributes meaningfully to PEWS sustainment., Competing Interests: Conflict of interest We have no known conflict of interest to disclose.
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- 2024
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16. Divergent HLA variations and heterogeneous expression but recurrent HLA loss-of- heterozygosity and common HLA-B and TAP transcriptional silencing across advanced pediatric solid cancers.
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Lim WC, Marques Da Costa ME, Godefroy K, Jacquet E, Gragert L, Rondof W, Marchais A, Nhiri N, Dalfovo D, Viard M, Labaied N, Khan AM, Dessen P, Romanel A, Pasqualini C, Schleiermacher G, Carrington M, Zitvogel L, Scoazec JY, Geoerger B, and Salmon J
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- Adolescent, Child, Humans, Antigen Presentation, Histocompatibility Antigens Class I genetics, Histocompatibility Antigens Class II genetics, HLA Antigens genetics, HLA-B Antigens genetics, Animals, Young Adult, Glioma, Sarcoma, Ewing genetics
- Abstract
The human leukocyte antigen (HLA) system is a major factor controlling cancer immunosurveillance and response to immunotherapy, yet its status in pediatric cancers remains fragmentary. We determined high-confidence HLA genotypes in 576 children, adolescents and young adults with recurrent/refractory solid tumors from the MOSCATO-01 and MAPPYACTS trials, using normal and tumor whole exome and RNA sequencing data and benchmarked algorithms. There was no evidence for narrowed HLA allelic diversity but discordant homozygosity and allele frequencies across tumor types and subtypes, such as in embryonal and alveolar rhabdomyosarcoma, neuroblastoma MYCN and 11q subtypes, and high-grade glioma, and several alleles may represent protective or susceptibility factors to specific pediatric solid cancers. There was a paucity of somatic mutations in HLA and antigen processing and presentation (APP) genes in most tumors, except in cases with mismatch repair deficiency or genetic instability. The prevalence of loss-of-heterozygosity (LOH) ranged from 5.9 to 7.7% in HLA class I and 8.0 to 16.7% in HLA class II genes, but was widely increased in osteosarcoma and glioblastoma (~15-25%), and for DRB1-DQA1-DQB1 in Ewing sarcoma (~23-28%) and low-grade glioma (~33-50%). HLA class I and HLA-DR antigen expression was assessed in 194 tumors and 44 patient-derived xenografts (PDXs) by immunochemistry, and class I and APP transcript levels quantified in PDXs by RT-qPCR. We confirmed that HLA class I antigen expression is heterogeneous in advanced pediatric solid tumors, with class I loss commonly associated with the transcriptional downregulation of HLA-B and transporter associated with antigen processing ( TAP ) genes, whereas class II antigen expression is scarce on tumor cells and occurs on immune infiltrating cells. Patients with tumors expressing sufficient HLA class I and TAP levels such as some glioma, osteosarcoma, Ewing sarcoma and non-rhabdomyosarcoma soft-tissue sarcoma cases may more likely benefit from T cell-based approaches, whereas strategies to upregulate HLA expression, to expand the immunopeptidome, and to target TAP-independent epitopes or possibly LOH might provide novel therapeutic opportunities in others. The consequences of HLA class II expression by immune cells remain to be established. Immunogenetic profiling should be implemented in routine to inform immunotherapy trials for precision medicine of pediatric cancers., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision., (Copyright © 2024 Lim, Marques Da Costa, Godefroy, Jacquet, Gragert, Rondof, Marchais, Nhiri, Dalfovo, Viard, Labaied, Khan, Dessen, Romanel, Pasqualini, Schleiermacher, Carrington, Zitvogel, Scoazec, Geoerger and Salmon.)
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- 2024
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17. A biobank of pediatric patient-derived-xenograft models in cancer precision medicine trial MAPPYACTS for relapsed and refractory tumors.
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Marques Da Costa ME, Zaidi S, Scoazec JY, Droit R, Lim WC, Marchais A, Salmon J, Cherkaoui S, Morscher RJ, Laurent A, Malinge S, Mercher T, Tabone-Eglinger S, Goddard I, Pflumio F, Calvo J, Redini F, Entz-Werlé N, Soriano A, Villanueva A, Cairo S, Chastagner P, Moro M, Owens C, Casanova M, Hladun-Alvaro R, Berlanga P, Daudigeos-Dubus E, Dessen P, Zitvogel L, Lacroix L, Pierron G, Delattre O, Schleiermacher G, Surdez D, and Geoerger B
- Subjects
- Animals, Child, Humans, Mice, Biological Specimen Banks, Disease Models, Animal, Heterografts, Precision Medicine, Clinical Trials as Topic, Leukemia, Neoplasms genetics
- Abstract
Pediatric patients with recurrent and refractory cancers are in most need for new treatments. This study developed patient-derived-xenograft (PDX) models within the European MAPPYACTS cancer precision medicine trial (NCT02613962). To date, 131 PDX models were established following heterotopical and/or orthotopical implantation in immunocompromised mice: 76 sarcomas, 25 other solid tumors, 12 central nervous system tumors, 15 acute leukemias, and 3 lymphomas. PDX establishment rate was 43%. Histology, whole exome and RNA sequencing revealed a high concordance with the primary patient's tumor profile, human leukocyte-antigen characteristics and specific metabolic pathway signatures. A detailed patient molecular characterization, including specific mutations prioritized in the clinical molecular tumor boards are provided. Ninety models were shared with the IMI2 ITCC Pediatric Preclinical Proof-of-concept Platform (IMI2 ITCC-P4) for further exploitation. This PDX biobank of unique recurrent childhood cancers provides an essential support for basic and translational research and treatments development in advanced pediatric malignancies., (© 2023. Springer Nature Limited.)
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- 2023
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18. Effect of paediatric early warning systems (PEWS) implementation on clinical deterioration event mortality among children with cancer in resource-limited hospitals in Latin America: a prospective, multicentre cohort study.
- Author
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Agulnik A, Muniz-Talavera H, Pham LTD, Chen Y, Carrillo AK, Cárdenas-Aguirre A, Gonzalez Ruiz A, Garza M, Conde Morelos Zaragoza TM, Soberanis Vasquez DJ, Méndez-Aceituno A, Acuña-Aguirre C, Alfonso-Carreras Y, Alvarez Arellano SY, Andrade Sarmiento LA, Batista R, Blasco Arriaga EE, Calderon P, Chavez Rios M, Costa ME, Díaz-Coronado R, Fing Soto EA, Gómez García WC, Herrera Almanza M, Juarez Tobías MS, León López EM, López Facundo NA, Martinez Soria RA, Miller K, Miralda Méndez ST, Mora Robles LN, Negroe Ocampo NDC, Noriega Acuña B, Osuna Garcia A, Pérez Alvarado CM, Pérez Fermin CK, Pineda Urquilla EE, Portilla Figueroa CA, Ríos Lopez LE, Rivera Mijares J, Soto Chávez V, Suarez Soto JI, Teixeira Costa J, Tejocote Romero I, Villanueva Hoyos EE, Villegas Pacheco M, Devidas M, and Rodriguez-Galindo C
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- Child, Humans, Male, Child, Preschool, Adolescent, Cohort Studies, Prospective Studies, Latin America epidemiology, Hospitals, Clinical Deterioration, Neoplasms therapy
- Abstract
Background: Paediatric early warning systems (PEWS) aid in the early identification of clinical deterioration events in children admitted to hospital. We aimed to investigate the effect of PEWS implementation on mortality due to clinical deterioration in children with cancer in 32 resource-limited hospitals across Latin America., Methods: Proyecto Escala de Valoración de Alerta Temprana (Proyecto EVAT) is a quality improvement collaborative to implement PEWS in hospitals providing childhood cancer care. In this prospective, multicentre cohort study, centres joining Proyecto EVAT and completing PEWS implementation between April 1, 2017, and May 31, 2021, prospectively tracked clinical deterioration events and monthly inpatient-days in children admitted to hospital with cancer. De-identified registry data reported between April 17, 2017, and Nov 30, 2021, from all hospitals were included in analyses; children with limitations on escalation of care were excluded. The primary outcome was clinical deterioration event mortality. Incidence rate ratios (IRRs) were used to compare clinical deterioration event mortality before and after PEWS implementation; multivariable analyses assessed the correlation between clinical deterioration event mortality and centre characteristics., Findings: Between April 1, 2017, and May 31, 2021, 32 paediatric oncology centres from 11 countries in Latin America successfully implemented PEWS through Proyecto EVAT; these centres documented 2020 clinical deterioration events in 1651 patients over 556 400 inpatient-days. Overall clinical deterioration event mortality was 32·9% (664 of 2020 events). The median age of patients with clinical deterioration events was 8·5 years (IQR 3·9-13·2), and 1095 (54·2%) of 2020 clinical deterioration events were reported in male patients; data on race or ethnicity were not collected. Data were reported per centre for a median of 12 months (IQR 10-13) before PEWS implementation and 18 months (16-18) after PEWS implementation. The mortality rate due to a clinical deterioration event was 1·33 events per 1000 patient-days before PEWS implementation and 1·09 events per 1000 patient-days after PEWS implementation (IRR 0·82 [95% CI 0·69-0·97]; p=0·021). In the multivariable analysis of centre characteristics, higher clinical deterioration event mortality rates before PEWS implementation (IRR 1·32 [95% CI 1·22-1·43]; p<0·0001), being a teaching hospital (1·18 [1·09-1·27]; p<0·0001), not having a separate paediatric haematology-oncology unit (1·38 [1·21-1·57]; p<0·0001), and having fewer PEWS omissions (0·95 [0·92-0·99]; p=0·0091) were associated with a greater reduction in clinical deterioration event mortality after PEWS implementation; no association was found with country income level (IRR 0·86 [95% CI 0·68-1·09]; p=0·22) or clinical deterioration event rates before PEWS implementation (1·04 [0·97-1·12]; p=0·29)., Interpretation: PEWS implementation was associated with reduced clinical deterioration event mortality in paediatric patients with cancer across 32 resource-limited hospitals in Latin America. These data support the use of PEWS as an effective evidence-based intervention to reduce disparities in global survival for children with cancer., Funding: American Lebanese Syrian Associated Charities, US National Institutes of Health, and Conquer Cancer Foundation., Translations: For the Spanish and Portuguese translations of the abstract see Supplementary Materials section., Competing Interests: Declaration of interests We declare no competing interests., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
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- 2023
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19. Combination Therapies Targeting ALK-aberrant Neuroblastoma in Preclinical Models.
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Tucker ER, Jiménez I, Chen L, Bellini A, Gorrini C, Calton E, Gao Q, Che H, Poon E, Jamin Y, Martins Da Costa B, Barker K, Shrestha S, Hutchinson JC, Dhariwal S, Goodman A, Del Nery E, Gestraud P, Bhalshankar J, Iddir Y, Saberi-Ansari E, Saint-Charles A, Geoerger B, Marques Da Costa ME, Pierre-Eugène C, Janoueix-Lerosey I, Decaudin D, Nemati F, Carcaboso AM, Surdez D, Delattre O, George SL, Chesler L, Tweddle DA, and Schleiermacher G
- Subjects
- Mice, Animals, Humans, Anaplastic Lymphoma Kinase genetics, Aminopyridines therapeutic use, Lactams, Macrocyclic pharmacology, Lactams, Macrocyclic therapeutic use, Protein Kinase Inhibitors pharmacology, Protein Kinase Inhibitors therapeutic use, Neuroblastoma drug therapy, Neuroblastoma genetics, Neuroblastoma metabolism, Lung Neoplasms drug therapy
- Abstract
Purpose: ALK-activating mutations are identified in approximately 10% of newly diagnosed neuroblastomas and ALK amplifications in a further 1%-2% of cases. Lorlatinib, a third-generation anaplastic lymphoma kinase (ALK) inhibitor, will soon be given alongside induction chemotherapy for children with ALK-aberrant neuroblastoma. However, resistance to single-agent treatment has been reported and therapies that improve the response duration are urgently required. We studied the preclinical combination of lorlatinib with chemotherapy, or with the MDM2 inhibitor, idasanutlin, as recent data have suggested that ALK inhibitor resistance can be overcome through activation of the p53-MDM2 pathway., Experimental Design: We compared different ALK inhibitors in preclinical models prior to evaluating lorlatinib in combination with chemotherapy or idasanutlin. We developed a triple chemotherapy (CAV: cyclophosphamide, doxorubicin, and vincristine) in vivo dosing schedule and applied this to both neuroblastoma genetically engineered mouse models (GEMM) and patient-derived xenografts (PDX)., Results: Lorlatinib in combination with chemotherapy was synergistic in immunocompetent neuroblastoma GEMM. Significant growth inhibition in response to lorlatinib was only observed in the ALK-amplified PDX model with high ALK expression. In this PDX, lorlatinib combined with idasanutlin resulted in complete tumor regression and significantly delayed tumor regrowth., Conclusions: In our preclinical neuroblastoma models, high ALK expression was associated with lorlatinib response alone or in combination with either chemotherapy or idasanutlin. The synergy between MDM2 and ALK inhibition warrants further evaluation of this combination as a potential clinical approach for children with neuroblastoma., (©2023 The Authors; Published by the American Association for Cancer Research.)
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- 2023
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20. How much time of sedentary behavior is associated with depressive symptoms in community-dwelling older adults in southern Brazil?
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da Costa ME, Cândido LM, de Avelar NCP, and Danielewicz AL
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- Humans, Aged, Sedentary Behavior, Independent Living, Cross-Sectional Studies, Brazil, Depression, Exercise
- Abstract
Aims: Identify sedentary behavior (SB) cut-off points to screen for depressive symptoms in older adults and verify the association between these conditions., Methods: A cross-sectional survey of 308 community-dwelling older adults was conducted. The outcome was the presence of depressive symptoms (≥6 points on the Geriatric Depression Scale-15). The exposure was SB using the self-reported time on a weekday and weekend (International Physical Activity Questionnaire). The cut-off points for SB categorization were determined by the receiver operating characteristic curve and multivariate logistic regression to verify the association., Results: Older adults who spent ≥4.5 hours/day in SB (sensitivity = 48.8%; specificity = 67.8%) were 1.81 times more likely (95%CI: 1.03;3.15) to have depressive symptoms compared to those who stayed for shorter periods., Conclusions: There was an association between SB and depressive symptoms; therefore, older adults must have SB <4.5 hours/day to reduce the chances of developing depressive symptoms., Competing Interests: Declaration of Competing Interest The authors declare that they have no conflict of interest., (Copyright © 2022 Elsevier Inc. All rights reserved.)
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- 2023
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21. "Death is a sensitive topic when you are surrounded by life": Nurses experiences with pregnancy loss.
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Martins MV, Valente VA, Silva AD, Ramalho C, and Costa ME
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- Pregnancy, Female, Humans, Health Personnel, Qualitative Research, Abortion, Induced, Abortion, Spontaneous, Bereavement, Nurses
- Abstract
Objective: Although there is increasing evidence on the psychosocial adjustment and experiencing pregnancy loss from the patient's perspective, few studies have investigated the nurses' experience perceptions. This study aimed to understand the experience of nurses involved in pregnancy loss care based on the self-fulfillment model of communication., Methods: A qualitative approach was developed through semi-structured interviews to 16 nurses working in an Obstetrics and Maternal-Fetal Department of a local hospital. Based on grounded theory approach, data was analyzed with NVivo 12 software., Results: The analysis revealed three major themes and 11 sub-themes: i) stressful work conditions, comprising care management and institutional practices; ii) personal characteristics, including discomfort with loss, communication skills, work experience and empathy; and iii) the patient's journey, containing the partner's ambiguous role, timing, respect for the patient's individuality, viewing the fetus and facilitating grief rituals., Conclusion: Nurses daily involved in providing care to patients suffering pregnancy loses have a demanding challenge in trying to assure that patients get the appropriate and better care and ensuring they keep their level of engagement in their profession. Interventions to improve communications skills with patients and with other health professionals are needed to enhance professional realization., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Author(s). Published by Elsevier B.V. All rights reserved.)
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- 2023
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22. Effect of depression and anxiety on sexual functioning in couples trying to conceive with and without an infertility diagnosis.
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Fernandes J, Pedro J, Costa ME, and Martins MV
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- Humans, Male, Female, Anxiety diagnosis, Anxiety psychology, Anxiety Disorders, Surveys and Questionnaires, Depression diagnosis, Depression psychology, Infertility psychology
- Abstract
Objective: This study examined the effects of anxiety and depression on sexual functioning in couples trying to conceive, and tested the moderating role of infertility diagnosis on this association., Design: An online questionnaire was completed by 1453 individuals in a heterosexual relationship for more than one year. The final sample had 107 couples who were actively attempting a pregnancy (63 had an infertility diagnosis; 44 were presumably fertile). Data was analyzed with the Actor-Partner Interdependence Model (APIM)., Main Outcome Measures: Depression and anxiety symptoms were assessed by the Hospital Anxiety and Depression Scale (HADS), and male and female sexual functioning were assessed through the International Index of Erectile Function (IIEF) and the Female Sexual Function Index (FSFI), respectively., Results: Actor effects were found between depression and sexual functioning in both men (β= -.28, p= .003) and women (β= -.43, p < .001), with no significant partner effects. The moderation analysis showed that the relationship between depression and sexual functioning is stronger in infertile men than in presumably fertile men (β= -.29; p= .002)., Conclusion: Psychological interventions with couples trying to conceive should address the role of depression in sexual functioning, particularly in infertile men.
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- 2023
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23. Mapping intentions to adopt fertility protective behaviours: the role of couple congruence and the importance of relationship and fertility awareness.
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Pedro J, Fernandes J, Schmidt L, Costa ME, and Martins MV
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- Humans, Male, Female, Adult, Cross-Sectional Studies, Attitude, Reproduction, Intention, Fertility
- Abstract
Several studies worldwide have shown that reproductive-aged people often have inadequate fertility awareness (FA). Since attitudes and health behaviours are influenced by the partner, there is a need for studies exploring the role of these influences on the individuals' adoption of fertility protective behaviours (FPB). This study explores the role of FA and relationship quality on couples' intention to adopt FPB. One hundred and twelve childless couples answered an online questionnaire about reproductive life plan, FA and intentions to adopt FPB. The results showed that couples were moderately congruent on their reproductive life plan. The female partners who reported higher female relationship quality and higher female willingness to undergo fertility treatments were more willing to adopt FPB. The male partners who had heightened FA also reported higher intention to adopt FPB. The influences of male and female FA, relationship quality and congruence on reproductive life plan were neither associated with couples' congruence on the intention to adopt FPB. Although the cross-sectional design restricts our ability to draw causal conclusions, these findings emphasize that future interventions should be targeted at couples and designed according to their expectations and reproductive desires.
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- 2022
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24. Effects of trying to conceive using an every-other-day strategy versus fertile window monitoring on stress: a 12-month randomized controlled trial.
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Martins MV, Fernandes J, Pedro J, Barros A, Xavier P, Schmidt L, and Costa ME
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- Pregnancy, Child, Male, Female, Humans, Prospective Studies, Fertility, Anxiety, Pregnancy Rate, Infertility psychology
- Abstract
Study Question: Can animation videos on how to optimize the chances of pregnancy influence stress, anxiety, depression and sexual functioning of individuals trying to conceive (TTC)?, Summary Answer: There were no differences between those educated to have intercourse every other day, on the fertile window and a control group (CG), and depression and sexual dysfunction significantly increased over time for all arms., What Is Known Already: Recent findings indicate that time to pregnancy can be significantly shortened by targeting the fertile period, but some reproductive care guidelines recommend instead the practice of intercourse every other day on the basis that it is less stressful to the couple. Evidence to support guidelines on how to preserve well-being and psychosocial adjustment and optimize pregnancy chances is lacking., Study Design, Size, Duration: We conducted a prospective, double-blinded, three-arm randomized controlled trial between July 2016 and November 2019. Participants were randomized to either not having any stimulus (CG) or visualizing a short animated video explaining how to improve chances of pregnancy by having intercourse every other day (EOD group), or by monitoring the fertile window (FWM group). Assessments were made before the intervention (T0), and 6 weeks (T1), 6 months (T2) and 12 months after (T3), with follow-ups censored in case of pregnancy., Participants/materials, Setting, Methods: Participants were childless individuals of reproductive age actively TTC and not diagnosed or unaware of a condition that could prevent spontaneous pregnancy. Individuals were excluded from recruitment if they had previous children or had a condition preventing spontaneous pregnancy. Our primary outcome was stress and secondary outcomes included anxiety, depression, sexual functioning and pregnancy. Primary analyses were performed according to intention-to-treat principle., Main Results and the Role of Chance: Of the 450 randomized participants 127 were educated to use an every-other-day strategy, 135 to monitor the fertile window, and 134 received no intervention. Groups were similar regarding demographics and months TTC. Repeated measures analysis revealed that there were no significant interaction effects of psychological and sexual well-being between groups over time (P > 0.05). Significant time effects were revealed for stress (F(3,855) = 4.94, P < 0.01), depression (F(3,855) = 14.22, P < 0.01) and sexual functioning (time effects P values <0.001 for female sexual functioning dimensions and <0.002 for male dimensions), but not for anxiety (F(2,299) = 0.51, P > 0.05). Stress levels lowered after 6 months (P < 0.001) and returned to baseline levels at the 1-year follow-up. Depressive symptomatology significantly increased at 6 weeks (P = 0.023), and again 1 year after (P = 0.001). There were also significant decreases in all female sexual functioning dimensions (desire, satisfaction, arousal, pain, orgasm and lubrication). In men, there were significant variations in orgasm, intercourse satisfaction and erectile function, but not desire and sexual satisfaction. Revealed pregnancy rates were 16% for participants in the EOD group, 30% for the FWM group and 20% for the CG. Pregnancies were not significantly different between arms: EOD vs FWM (odds ratio (OR) 2.32; 95% CI 0.92-5.83); EOD vs CG (OR 0.74; 95% CI 0.30-1.87); and FWM vs CG (OR 1.71; 95% CI 0.70-4.18)., Limitations, Reasons for Caution: Participants were recruited after transitioning to procreative sex. The study might be prone to bias as almost 30% of our sample fulfilled the chronological criterion for infertility, and other reproductive strategies could have been tried over time before recruitment., Wider Implications of the Findings: Our data suggest that stress does not arise from feeling pressured on the fertile period and that advice on timing of intercourse might have to be personalized. The increasing levels of depression and sexual dysfunction over a year emphasize the crucial role of preconception care and fertility counseling in promoting psychological and sexual well-being., Study Funding/competing Interest(s): This work was supported by European Union Funds (FEDER/COMPETE-Operational Competitiveness Programme) and by national funds (FCT-Portuguese Foundation for Science and Technology) under the projects PTDC/MHC-PSC/4195/2012 and SFRH/BPD/85789/2012., Trial Registration Number: NCT02814006., Trial Registration Date: 27 June 2016., Date of First Patient’s Enrollment: 19 July 2016., (© The Author(s) 2022. Published by Oxford University Press on behalf of European Society of Human Reproduction and Embryology. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
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- 2022
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25. A web-based psychoeducational simulation game for adults in stepfamilies ( GSteps )-study protocol for a randomized controlled feasibility trial.
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Santos CM, Costa ME, Higginbotham BJ, and Martins MV
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Background: Stepfamilies are a prevalent family form. However, less stable than nuclear, first marriage families due to the presence of risk factors such as the absence of social norms and the presence of stepchildren. Stepfamilies have unique educational needs regarding stepparenting and co-parenting issues. The development and documentation of psychoeducational intervention strategies can facilitate dissemination of ongoing studies and promote transparency. This article describes the background, design and protocol of a randomized controlled trial (RCT) evaluating the eficacy and feasibility of a web-based Psychoeducational Simulation Game ( GSteps ). Behavior-modeling video training (BMT) is used to demonstrate and promote relational skills, stepparenting and co-parenting effective strategies for adults in stepfamilies. A mental health professional will be available within the GSteps platform for clarification or emotional support., Methods/design: A RCT design is presented to evaluate the outcomes of a self-administered, interactive and web-based psychoeducational Game targeting dyadic marital adjustment and interpersonal skills as the primary outcomes and remarriage beliefs, family function and stepparenting and co-parenting attitudes as the secondary outcomes. Other outcome measures include satisfaction with GSteps , participants' knowledge learned after the intervention and a purposive sampling method will be used to access feasibility. The minimum required sample size is 112 participants (56 per condition) randomly allocated either to an experimental group (EG), receiving GSteps intervention, or to a wait-list control group (CG). A survey is conducted electronically. Assessments take place at baseline ( T
0 ), after the intervention ( T1 ) and 1-month follow-up ( T2 )., Discussion: This protocol presents a RCT aimed at evaluating the efficacy of a web-based psychoeducational intervention ( GSteps ) designed for improving marital, stepparenting and co-parenting skills in adults who live in stepfamilies. The use of the protocol and results of intervention studies may guide the use and refinement of web-based psychoeducational intervention for stepfamilies. Additionally, GSteps may become a tool for health professionals to enhance stepfamily functioning, stepparenting skills, and marital adjustment of remarried adults., Competing Interests: The authors declare that the GSteps intervention and protocol were designed in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Santos, Costa, Higginbotham and Martins.)- Published
- 2022
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26. Reliability of the Theory of Mind Task Battery (ToM TB) to assess social cognition in post-stroke patients.
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Ferreira Pereira NK, de Medeiros Cirne GN, de Oliveira Galvão FR, Costa ME, Dos Santos Lima Júnior W, Azevedo Cacho EW, N Chagas MH, and de Oliveira Cacho R
- Subjects
- Cognition, Cross-Sectional Studies, Humans, Neuropsychological Tests, Prospective Studies, Reproducibility of Results, Social Cognition, Stroke complications, Theory of Mind
- Abstract
Theory of mind is the ability to understand, and infer thoughts or mental states to others. This is a central domain of social cognition that can be impaired after brain injury, resulting in changes in social skills and implications for rehabilitation.The aim of this investigation was to analyze the reliability of the Theory of Mind Task Battery (ToM TB) in post-stroke patients.This is a cross-sectional prospective study with psychometric characteristics, involving 38 patients diagnosed with ischemic or hemorrhagic stroke assessed by three examiners using the ToM TB scale, translated and adapted to Brazilian Portuguese. Satisfactory levels of interexaminer agreement were found for almost all categories of the ToM TB: Kappa ranged from 0.036 to 1.00, total score (ICC) from 0.958 to 0.999 and a Cronbach's alpha of 0.658 was obtained with the complete instrument.The Brazilian version of the ToM TB in post-stroke patients is a reliable instrument that can be used to assess the theory of mind, prognosis and rehabilitation of post-stroke patients.
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- 2022
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27. Extrinsic Point Defects in Low-Positive Thermal Expansion Al 2 W 3 O 12 and Their Effects on Thermal and Optical Properties.
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Moreno Diaz EC, Maia da Costa ME, Paraguassu W, Krambrock K, Dosen A, Johnson MB, White MA, and Marinkovic BA
- Abstract
A
2 M3 O12 -type ceramics are potentially useful in a variety of applications due to their peculiar thermal and mechanical properties. In addition, their intrinsic coefficients of thermal expansion can be finely tuned through different mechanisms. Despite the great influence of extrinsic point defects on physical properties, only a few reports have dealt with their relationship to thermal expansion and thermal conductivity. Extrinsic oxygen vacancies in orthorhombic Al2 W3 O12 , in different concentrations, were formed through heat treatments in argon or hydrogen atmospheres. X-ray powder diffraction, diffuse reflectance spectroscopy, and Raman and electron paramagnetic resonance spectroscopies were used to study the as-formed vacancies, and X-ray photoelectron spectroscopy was employed to propose a charge compensation mechanism. It was found that the intrinsic coefficient of thermal expansion of orthorhombic Al2 W3 O12 was severely affected by extrinsic oxygen vacancies. Thermal expansion was decreased up to 40% (from 25 to 400 °C) with respect to the extrinsic-point-defect-free counterpart. Unit-cell volumes of defective orthorhombic Al2 W3 O12 were larger, while their W-O bonds were weaker, likely leading to higher lattice flexibility and enhanced low-energy transverse acoustic modes. Extrinsic oxygen vacancies could be an additional mechanism for fine-tuning the intrinsic coefficients of thermal expansion in A2 M3 O12 -type ceramics and in other framework structures built through two or threefold linkages.- Published
- 2022
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28. Effectiveness of a video-based education on fertility awareness: a randomized controlled trial with partnered women.
- Author
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Pedro J, Fernandes J, Barros A, Xavier P, Almeida V, Costa ME, Schmidt L, and Martins MV
- Subjects
- Adolescent, Child, Educational Status, Female, Humans, Pregnancy, Surveys and Questionnaires, Fertility, Health Knowledge, Attitudes, Practice
- Abstract
Fertility awareness (FA) among young people is low. Fertility awareness interventions have been found to contribute to increase FA in the short-term. The long-term effectiveness of FA interventions on childless and presumed fertile people, committed in a heterosexual relationship and wishing to have children in the near future is not known. In a double-blind parallel randomized controlled trial conducted between 2016 and 2018, 652 childless partnered women were randomized to either watch a 5-min video about fertility (IG: 'Intervention Group') or to not receive any intervention (CG: 'Control Group'). Participants filled out an online questionnaire at the start of the study (and in the IG group immediately before intervention). They then completed the questionnaire after 1 month, 6 months and 1 year. The questionnaire assessed FA and intentions to adopt fertility-protective behaviours. In the IG, FA levels were found to increase at 1 month post-intervention. However, significant interaction effects between group and time were only found for four out of the seven FA variables at the 6-month and 1-year follow-up. No effects were found for: (i) intentions to adopt fertility-protective behaviours; or (ii) desired timing of pregnancy. These results suggest that the fertility video intervention seems to partially increase FA in the long term. Future studies should investigate the effectiveness of different intervention formats with a focus on overcoming high attrition rates.
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- 2022
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29. Immune Infiltrate and Tumor Microenvironment Transcriptional Programs Stratify Pediatric Osteosarcoma into Prognostic Groups at Diagnosis.
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Marchais A, Marques da Costa ME, Job B, Abbas R, Drubay D, Piperno-Neumann S, Fromigué O, Gomez-Brouchet A, Redini F, Droit R, Lervat C, Entz-Werle N, Pacquement H, Devoldere C, Cupissol D, Bodet D, Gandemer V, Berger M, Marec-Berard P, Jimenez M, Vassal G, Geoerger B, Brugières L, and Gaspar N
- Subjects
- Adolescent, Biomarkers, Biomarkers, Tumor genetics, Child, Humans, Prognosis, Tumor Microenvironment genetics, Young Adult, Bone Neoplasms genetics, Bone Neoplasms pathology, Osteosarcoma genetics, Osteosarcoma pathology
- Abstract
The outcomes of adolescents/young adults with osteosarcoma have not improved in decades. The chaotic karyotype of this rare tumor has precluded the identification of prognostic biomarkers and patient stratification. We reasoned that transcriptomic studies should overcome this genetic complexity. RNA sequencing (RNA-seq) of 79 osteosarcoma diagnostic biopsies identified stable independent components that recapitulate the tumor and microenvironment cell composition. Unsupervised classification of the independent components stratified this cohort into favorable (G1) and unfavorable (G2) prognostic tumors in terms of overall survival. Multivariate survival analysis ranked this stratification as the most influential variable. Functional characterization associated G1 tumors with innate immunity and G2 tumors with angiogenic, osteoclastic, and adipogenic activities as well as PPARγ pathway upregulation. A focused gene signature that predicted G1/G2 tumors from RNA-seq data was developed and validated within an independent cohort of 82 osteosarcomas. This signature was further validated with a custom NanoString panel in 96 additional osteosarcomas. This study thus proposes new biomarkers to detect high-risk patients and new therapeutic options for osteosarcoma., Significance: These findings indicate that the osteosarcoma microenvironment composition is a major feature to identify hard-to-treat patient tumors at diagnosis and define the biological pathways and potential actionable targets associated with these tumors., (©2022 American Association for Cancer Research.)
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- 2022
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30. Family Adjustment to Hereditary Cancer Syndromes: A Systematic Review.
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Gomes P, Pietrabissa G, Silva ER, Silva J, Matos PM, Costa ME, Bertuzzi V, Silva E, Neves MC, and Sales CMD
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- Child, Family, Genetic Testing, Humans, Risk, Genetic Counseling, Neoplastic Syndromes, Hereditary
- Abstract
Hereditary cancer syndromes are inherited pathogenic genetic variants that significantly increase the risk of developing cancer. When individuals become aware of their increased probability of having cancer, the whole family is affected by this new reality and needs to adjust. However, adjustment to hereditary cancer syndromes has been mainly studied at an individual level, and research about familial adjustment remains dispersed and disorganized. To overcome this gap, this review aims to understand how families adjust to genetic testing and risk management, and to what extent the family's adjustment influences the psychological response and risk management behaviors of mutation carriers. We conducted searches on the PubMed/Med Line, PsycInfo, SCOPUS, and Google Scholar databases and used the Mixed Methods Appraisal Tool (MMAT-v2018) to assess the methodological quality of each selected study. Thirty studies met the inclusion criteria. Most results highlighted the interdependent nature of adjustment of pathogenic variant carriers and their families. The way carriers adjust to the syndrome is highly dependent on family functioning and related to how family members react to the new genetic information, particularly partners and siblings. Couples who share their worries and communicate openly about cancer risk present a better long-term adjustment than couples who use protective buffering (not talking about it to avoid disturbing the partner) or emotional distancing. Parents need help dealing with disclosing genetic information to their children. These findings reinforce the importance of adopting a family-centered approach in the context of genetic counseling and the necessity of involving family members in research.
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- 2022
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31. Perceived Threat of Infertility and Women's Intention to Anticipate Childbearing: The Mediating Role of Personally Perceived Barriers and Facilitators.
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Pedro J, Brandão T, Fernandes J, Barros A, Xavier P, Schmidt L, Costa ME, and Martins MV
- Subjects
- Child, Cross-Sectional Studies, Female, Fertility, Humans, Surveys and Questionnaires, Infertility, Intention
- Abstract
To study the role of perceived threat of infertility, barriers, and facilitators in intention to anticipate childbearing, a cross-sectional study was conducted with 240 women desiring to have children and committed in a heterosexual relationship. Participants answered an online survey between July 2016 and February 2018. Results showed that perceiving infertility as a strong barrier and being willing to use fertility treatment as a facilitator fully mediated the effect of perceived threat on intention to anticipate childbearing. In conclusion, women who perceive themselves at risk of being infertile will consider, to a higher degree, infertility as a strong barrier to achieve their reproductive life plan or will report higher willingness to use fertility treatments, which in turn would increase intentions to anticipate childbearing. Since evidence showed lack of fertility awareness, intervention initiatives should target these mediators., (© 2020. Springer Science+Business Media, LLC, part of Springer Nature.)
- Published
- 2021
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32. ACUTE NECROTIZING AND EOSINOPHILIC MYOCARDITIS IN A CHIMPANZEE ( PAN TROGLODYTES ).
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de Oliveira AR, Oliveira Santos D, de Paula NF, Soares de Oliveira JB, Santana CH, de Carvalho TP, Alves Moreira LG, Tinoco HP, Loyola Teixeira da Costa ME, Coelho CM, Pessanha AT, Martins RB, Arruda E, Gomes Leal CA, Melo MM, Silveira Silva RO, Chávez-Olórtegui C, da Paixão TA, and Santos RL
- Subjects
- Animals, Eosinophilia pathology, Fatal Outcome, Male, Myocarditis pathology, Necrosis pathology, Necrosis veterinary, Ape Diseases pathology, Eosinophilia veterinary, Myocarditis veterinary, Myocardium pathology, Pan troglodytes
- Abstract
Cardiac disease is of importance in captive chimpanzee ( Pan troglodytes ) health. Here we report an eosinophilic and necrotizing myocarditis in a 17-y-old chimpanzee with no previous history of cardiac disease that progressed to death within 48 h. Toxic and infectious causes were ruled out. The chimpanzee had eosinophilia at different occasions in previous years. The animal had a severe, diffuse, and acute monophasic necrotizing myocarditis, with a moderate lymphoplasmacytic infiltrate that was rich in eosinophils. Ante- and postmortem investigations are compatible with an unusual eosinophilic myocarditis with clinical evolution and morphology comparable with human eosinophilic myocarditis secondary to hypereosinophilic syndrome.
- Published
- 2021
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33. Brain volumes quantification from MRI in healthy controls: Assessing correlation, agreement and robustness of a convolutional neural network-based software against FreeSurfer, CAT12 and FSL.
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Chaves H, Dorr F, Costa ME, Serra MM, Slezak DF, Farez MF, Sevlever G, Yañez P, and Cejas C
- Subjects
- Brain diagnostic imaging, Cross-Sectional Studies, Humans, Neural Networks, Computer, Software, Image Processing, Computer-Assisted, Magnetic Resonance Imaging
- Abstract
Background and Purpose: There are instances in which an estimate of the brain volume should be obtained from MRI in clinical practice. Our objective is to calculate cross-sectional robustness of a convolutional neural network (CNN) based software (Entelai Pic) for brain volume estimation and compare it to traditional software such as FreeSurfer, CAT12 and FSL in healthy controls (HC)., Materials and Methods: Sixteen HC were scanned four times, two different days on two different MRI scanners (1.5 T and 3 T). Volumetric T1-weighted images were acquired and post-processed with FreeSurfer v6.0.0, Entelai Pic v2, CAT12 v12.5 and FSL v5.0.9. Whole-brain, grey matter (GM), white matter (WM) and cerebrospinal fluid (CSF) volumes were calculated. Correlation and agreement between methods was assessed using intraclass correlation coefficient (ICC) and Bland Altman plots. Robustness was assessed using the coefficient of variation (CV)., Results: Whole-brain volume estimation had better correlation between FreeSurfer and Entelai Pic (ICC (95% CI) 0.96 (0.94-0.97)) than FreeSurfer and CAT12 (0.92 (0.88-0.96)) and FSL (0.87 (0.79-0.91)). WM, GM and CSF showed a similar trend. Compared to FreeSurfer, Entelai Pic provided similarly robust segmentations of brain volumes both on same-scanner (mean CV 1.07, range 0.20-3.13% vs. mean CV 1.05, range 0.21-3.20%, p = 0.86) and on different-scanner variables (mean CV 3.84, range 2.49-5.91% vs. mean CV 3.84, range 2.62-5.13%, p = 0.96). Mean post-processing times were 480, 5, 40 and 5 min for FreeSurfer, Entelai Pic, CAT12 and FSL respectively., Conclusion: Based on robustness and processing times, our CNN-based model is suitable for cross-sectional volumetry on clinical practice., (Copyright © 2020 Elsevier Masson SAS. All rights reserved.)
- Published
- 2021
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34. Particle Characteristics' Influence on FLASH Sintering of Potassium Sodium Niobate: A Relationship with Conduction Mechanisms.
- Author
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Serrazina R, Ribeiro C, Costa ME, Pereira L, Vilarinho PM, and Senos AMOR
- Abstract
The considerable decrease in temperature and time makes FLASH sintering a more sustainable alternative for materials processing. FLASH also becomes relevant if volatile elements are part of the material to be processed, as in alkali-based piezoelectrics like the promising lead-free K
0.5 Na0.5 NbO3 (KNN). Due to the volatile nature of K and Na, KNN is difficult to process by conventional sintering. Although some studies have been undertaken, much remains to be understood to properly engineer the FLASH sintering process of KNN. In this work, the effect of FLASH temperature, TF , is studied as a function of the particle size and impurity content of KNN powders. Differences are demonstrated: while the particle size and impurity degree markedly influence TF , they do not significantly affect the densification and grain growth processes. The conductivity of KNN FLASH-sintered ceramics and KNN single crystals (SCs) is compared to elucidate the role of particles' surface conduction. When particles' surfaces are not present, as in the case of SCs, the FLASH process requires higher temperatures and conductivity values. These results have implications in understanding FLASH sintering towards a more sustainable processing of lead-free piezoelectrics.- Published
- 2021
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35. COVID-19 pneumonia accurately detected on chest radiographs with artificial intelligence.
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Dorr F, Chaves H, Serra MM, Ramirez A, Costa ME, Seia J, Cejas C, Castro M, Eyheremendy E, Fernández Slezak D, and Farez MF
- Abstract
Purpose: To investigate the diagnostic performance of an Artificial Intelligence (AI) system for detection of COVID-19 in chest radiographs (CXR), and compare results to those of physicians working alone, or with AI support., Materials and Methods: An AI system was fine-tuned to discriminate confirmed COVID-19 pneumonia, from other viral and bacterial pneumonia and non-pneumonia patients and used to review 302 CXR images from adult patients retrospectively sourced from nine different databases. Fifty-four physicians blind to diagnosis, were invited to interpret images under identical conditions in a test set, and randomly assigned either to receive or not receive support from the AI system. Comparisons were then made between diagnostic performance of physicians working with and without AI support. AI system performance was evaluated using the area under the receiver operating characteristic (AUROC), and sensitivity and specificity of physician performance compared to that of the AI system., Results: Discrimination by the AI system of COVID-19 pneumonia showed an AUROC curve of 0.96 in the validation and 0.83 in the external test set, respectively. The AI system outperformed physicians in the AUROC overall (70% increase in sensitivity and 1% increase in specificity, p < 0.0001). When working with AI support, physicians increased their diagnostic sensitivity from 47% to 61% (p < 0.001), although specificity decreased from 79% to 75% (p = 0.007)., Conclusions: Our results suggest interpreting chest radiographs (CXR) supported by AI, increases physician diagnostic sensitivity for COVID-19 detection. This approach involving a human-machine partnership may help expedite triaging efforts and improve resource allocation in the current crisis., Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Mauricio F. Farez has received professional travel/accommodations stipends from Merck-Serono Argentina, Teva Argentina and Novartis Argentina. The rest of the authors declare no competing interests., (© 2020 Elsevier B.V.)
- Published
- 2020
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36. Recent advances in understanding osteosarcoma and emerging therapies.
- Author
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Gaspar N, Marques da Costa ME, Fromigue O, Droit R, Berlanga P, and Marchais A
- Abstract
Osteosarcoma is the most common bone cancer in adolescents and young adults, but it is a rare cancer with no improvement in patient survival in the last four decades. The main problem of this bone tumor is its evolution toward lung metastatic disease, despite the current treatment strategy (chemotherapy and surgery). To further improve survival, there is a strong need for new therapies that control osteosarcoma cells with metastatic potential and their favoring tumor microenvironment (ME) from the diagnosis. However, the complexity and heterogeneity of those tumor cell genomic/epigenetic and biology, the diversity of tumor ME where it develops, the sparsity of appropriate preclinical models, and the heterogeneity of therapeutic trials have rendered the task difficult. No tumor- or ME-targeted drugs are routinely available in front-line treatment. This article presents up-to-date information from preclinical and clinical studies that were recently published or presented in recent meetings which we hope might help change the osteosarcoma treatment landscape and patient survival in the near future., Competing Interests: NG is the principal investigator of the first-line trial Sarcoma 13 and the second-line trial. OLIE. MEMC, OF, RD, PB, and AM declare that they have no competing interests.No competing interests were disclosed.No competing interests were disclosed., (Copyright: © 2020 Gaspar N et al.)
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- 2020
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37. PATHOLOGIC FINDINGS IN 36 SLOTHS FROM BRAZIL.
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Arenales A, Silva FL, Miranda F, Brandão Guedes PE, Werther K, Loyola Teixeira da Costa ME, Tinoco HP, Coelho CM, and Santos RL
- Subjects
- Animals, Brazil epidemiology, Gastrointestinal Diseases parasitology, Gastrointestinal Diseases pathology, Hemochromatosis epidemiology, Hemochromatosis pathology, Mastocytosis, Systemic diagnosis, Mastocytosis, Systemic pathology, Pneumonia, Bacterial microbiology, Pneumonia, Bacterial pathology, Gastrointestinal Diseases veterinary, Hemochromatosis veterinary, Mastocytosis, Systemic veterinary, Nematoda isolation & purification, Pneumonia, Bacterial veterinary, Sloths
- Abstract
Sloths are xenarthrans from Central and South America with a highly adapted morphophysiology. Five of the six known species of sloths are found in Brazil, among which Bradypus torquatus (maned three-toed sloth) is considered a vulnerable species by International Union for Conservation of Nature. Nevertheless, knowledge on health and disease of sloths is very scarce, thus this study aimed to describe macroscopic and microscopic findings in 36 Brazilian sloths. The most common findings included iron storage disorder, probable bacterial pneumonia, gastric and intestinal nematode parasitism, and a presumptive diagnosis of systemic mastocytosis.
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- 2020
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38. Pathology of Free-Ranging and Captive Brazilian Anteaters.
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Arenales A, Gardiner CH, Miranda FR, Dutra KS, Oliveira AR, Mol JP, Texeira da Costa ME, Tinoco HP, Coelho CM, Silva RO, Pinto HA, Hoppe EG, Werther K, and Santos RL
- Subjects
- Animals, Brazil, Animal Diseases epidemiology, Xenarthra
- Abstract
There is little information on the anatomical pathology of Brazilian anteaters. Considering the relevance of knowledge of diseases of these species for their conservation, the aim of this study was to describe pathological changes in 99 captive and free-ranging anteaters from the Brazilian states of São Paulo, Minas Gerais, Bahia, Mato Grosso do Sul and Amazonas. Forty-two animals were killed on roads and 10 died from burns injuries. Other significant conditions included the metabolic diseases of iron storage disease, tissue mineralization and taurine deficiency, protozoan and metazoan infections, candidiasis, sporotrichosis, clostridiosis and proliferative disorders including squamous cell carcinoma., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
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- 2020
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39. Relationship of sanitation, water boiling, and mosquito nets to health biomarkers in a rural subsistence population.
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Dinkel KA, Costa ME, Kraft TS, Stieglitz J, Cummings DK, Gurven M, Kaplan H, and Trumble BC
- Subjects
- Adult, Aged, Aged, 80 and over, Bolivia, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Poverty Areas, Young Adult, Biomarkers analysis, Indians, South American statistics & numerical data, Mosquito Nets statistics & numerical data, Public Health statistics & numerical data, Rural Population statistics & numerical data, Sanitation statistics & numerical data, Water Purification statistics & numerical data
- Abstract
Objectives: Throughout human evolutionary history, parasites and pathogens were a major cause of mortality-modern urban life with public health infrastructure has changed disease exposure. We examine associations between boiling water, using latrines, mosquito net usage, and biomarkers among the Tsimane, a nonindustrial subsistence population with little public health infrastructure., Methods: We conducted cross sectional surveys on water, latrines, and bed nets among 507 heads of households (aged 18-92 years, median age 41 years). Regression models estimated associations between behaviors and health biomarkers (ie, white blood cell count [WBC], hemoglobin, eosinophil count, and erythrocyte sedimentation rate) adjusting for age, sex, body mass index, wealth, schooling, and distance to the nearby market town., Results: Latrine use is associated with 6.5% lower WBC count (β = -679.6, P = .031, SE = 314.1), 17.4% lower eosinophil counts (β = -244.7, P = .023, SE = 107.2), and reduced odds of eosinophilia (adjusted OR = 0.40, P < .019, 95% CI = 0.18-0.86). Boiling water and mosquito net use are not significantly associated with any biomarkers measured., Conclusions: In a subsistence population currently undergoing epidemiological transition, we find that latrine use was associated with several objective measures of health. This suggests that relatively low cost and low maintenance public health interventions may wish to focus on latrine use, as there is unmet need and potential health benefits for those who use latrines. Additionally, while the cost is higher, public health organizations aimed at improving sanitation may be able to use minimally invasive field-collected biomarkers as a diagnostic to objectively test the efficacy of interventions with greater specificity than anthropometric measurements., (© 2019 Wiley Periodicals, Inc.)
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- 2020
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40. Effect of Solution Conditions on the Properties of Sol-Gel Derived Potassium Sodium Niobate Thin Films on Platinized Sapphire Substrates.
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Tkach A, Santos A, Zlotnik S, Serrazina R, Okhay O, Bdikin I, Costa ME, and Vilarinho PM
- Abstract
If piezoelectric micro-devices based on K
0.5 Na0.5 NbO3 (KNN) thin films are to achieve commercialization, it is critical to optimize the films' performance using low-cost scalable processing conditions. Here, sol-gel derived KNN thin films are deposited using 0.2 and 0.4 M precursor solutions with 5% solely potassium excess and 20% alkali (both potassium and sodium) excess on platinized sapphire substrates with reduced thermal expansion mismatch in relation to KNN. Being then rapid thermal annealed at 750 °C for 5 min, the films revealed an identical thickness of ~340 nm but different properties. An average grain size of ~100 nm and nearly stoichiometric KNN films are obtained when using 5% potassium excess solution, while 20% alkali excess solutions give the grain size of 500-600 nm and (Na + K)/Nb ratio of 1.07-1.08 in the prepared films. Moreover, the 5% potassium excess solution films have a perovskite structure without clear preferential orientation, whereas a (100) texture appears for 20% alkali excess solutions, being particularly strong for the 0.4 M solution concentration. As a result of the grain size and (100) texturing competition, the highest room-temperature dielectric permittivity and lowest dissipation factor measured in the parallel-plate-capacitor geometry were obtained for KNN films using 0.2 M precursor solutions with 20% alkali excess. These films were also shown to possess more quadratic-like and less coercive local piezoelectric loops, compared to those from 5% potassium excess solution. Furthermore, KNN films with large (100)-textured grains prepared from 0.4 M precursor solution with 20% alkali excess were found to possess superior local piezoresponse attributed to multiscale domain microstructures.- Published
- 2019
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41. Body experience and the mother-child relationship in pregnancy: a cross-sectional study of pregnant Portuguese women.
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Meireles A and Costa ME
- Subjects
- Adult, Cross-Sectional Studies, Female, Humans, Object Attachment, Portugal, Pregnancy, Psychology, Body Image psychology, Maternal-Fetal Relations psychology, Pregnant Women psychology
- Abstract
Objective : In spite of the huge physical transformations that occur during pregnancy, there is little research on the role of body experience in the establishment of the mother-child relationship in pregnancy. The aim of the present study was to address this gap. Method : A sample of 330 pregnant women completed questionnaires assessing mother-child relationship (the Maternal-Fetal Attachment Scale), body experience, and other demographic and pregnancy variables. Results : Pearson's correlations revealed a number of variables were related to mother-child relationship in pregnancy, and t-tests and ANOVAs showed some between-subjects differences based on demographic variables. After controlling for these variables, regression analyses revealed that body experience was a significant predictor of both subscales of the Maternal-Fetal Attachment Scale: emotional investment in the baby and maternal role-taking. Conclusion : These findings highlight the connection between body experience and the psychological tasks of pregnancy and draw attention to new ways of assessing and improving mother-child relationships as early as in pregnancy. Results are discussed in terms of their clinical implications.
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- 2019
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42. In-Vitro and In-Vivo Establishment and Characterization of Bioluminescent Orthotopic Chemotherapy-Resistant Human Osteosarcoma Models in NSG Mice.
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Marques da Costa ME, Marchais A, Gomez-Brouchet A, Job B, Assoun N, Daudigeos-Dubus E, Fromigué O, Santos C, Geoerger B, and Gaspar N
- Abstract
Osteosarcoma, the most common bone malignancy with a peak incidence at adolescence, had no survival improvement since decades. Persistent problems are chemo-resistance and metastatic spread. We developed in-vitro osteosarcoma models resistant to chemotherapy and in-vivo bioluminescent orthotopic cell-derived-xenografts (CDX). Continuous increasing drug concentration cultures in-vitro resulted in five methotrexate (MTX)-resistant and one doxorubicin (DOXO)-resistant cell lines. Resistance persisted after drug removal except for MG-63. Different resistance mechanisms were identified, affecting drug transport and action mechanisms specific to methotrexate (RFC/SCL19A1 decrease, DHFR up-regulation) for MTX-resistant lines, or a multi-drug phenomenon (PgP up-regulation) for HOS-R/DOXO. Differential analysis of copy number abnormalities (aCGH) and gene expression (RNAseq) revealed changes of several chromosomic regions translated at transcriptomic level depending on drug and cell line, as well as different pathways implicated in invasive and metastatic potential (e.g., Fas, Metalloproteinases) and immunity (enrichment in HLA cluster genes in 6p21.3) in HOS-R/DOXO. Resistant-CDX models (HOS-R/MTX, HOS-R/DOXO and Saos-2-B-R/MTX) injected intratibially into NSG mice behaved as their parental counterpart at primary tumor site; however, they exhibited a slower growth rate and lower metastatic spread, although they retained resistance and CGH main characteristics without drug pressure. These models represent valuable tools to explore resistance mechanisms and new therapies in osteosarcoma.
- Published
- 2019
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43. Sustainability criteria for assessing nanotechnology applicability in industrial wastewater treatment: Current status and future outlook.
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Kamali M, Persson KM, Costa ME, and Capela I
- Subjects
- Environmental Pollutants, Environmental Restoration and Remediation standards, Industry, Nanostructures, Water Purification standards, Environmental Restoration and Remediation methods, Nanotechnology standards, Wastewater analysis, Water Purification methods
- Abstract
Application of engineered nanomaterials for the treatment of industrial effluents and to deal with recalcitrant pollutants has been noticeably promoted in recent years. Laboratory, pilot and full-scale studies emphasize the potential of this technology to offer promising treatment options to meet the future needs for clean water resources and to comply with stringent environmental regulations. The technology is now in the stage of being transferred to the real applications. Therefore, the assessment of its performance according to sustainability criteria and their incorporation into the decision-making process is a key task to ensure that long term benefits are achieved from the nano-treatment technologies. In this study, the importance of sustainability criteria for the conventional and novel technologies for the treatment of industrial effluents was determined in a general approach assisted by a fuzzy-Delphi method. The criteria were categorized in technical, economic, environmental and social branches and the current situation of the nanotechnology regarding the criteria was critically discussed. The results indicate that the efficiency and safety are the most important parameters to make sustainable choices for the treatment of industrial effluents. Also, in addition to the need for scaling-up the nanotechnology in various stages, the study on their environmental footprint must continue in deeper scales under expected environmental conditions, in particular the synthesis of engineered nanomaterials and the development of reactors with the ability of recovery and reuse the nanomaterials. This paper will aid to select the most sustainable types of nanomaterials for the real applications and to guide the future studies in this field., (Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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- 2019
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44. Child nutritional status among births exceeding ideal family size in a high fertility population.
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Costa ME, Trumble B, Kaplan H, and Gurven MD
- Subjects
- Anemia, Bolivia epidemiology, Child, Preschool, Cross-Sectional Studies, Female, Fertility, Humans, Infant, Infant, Newborn, Male, Socioeconomic Factors, Child Nutritional Physiological Phenomena physiology, Family Characteristics, Nutritional Status physiology
- Abstract
Ideal family size (IFS) is measured in social surveys to indicate unmet need for contraception and impending shifts in fertility behaviour. Whether exceeding IFS affects parental behaviour in ways that result in lower investments in child nutrition, well-being, and educational attainment is not known. This study examines parental IFS and the association between exceeding stated ideals and child nutritional status in a high-fertility, high-mortality population in the Bolivian Amazon. Height-for-age z-scores, weight-for-age z-scores, weight-for-height z-scores, stunting, haemoglobin, and anaemia status in 638 children aged 0-5 years are predicted as a function of birth order in relation to parental IFS, adjusting for household characteristics and mother and child random effects. Children of birth orders above paternal IFS experience higher weight-for-age z-scores when living further away from the market town of San Borja, consistent with underlying motivations for higher IFS and lower human capital investment in children in more remote areas (β = .009, p = .027). Overall, we find no statistical evidence that birth orders in excess of parental ideals are associated with compromised child nutrition below age 2, a period of intensive breastfeeding in this population. Despite a vulnerability to nutritional deficiencies postweaning for children age 2-5, there was no association between birth order in excess of parental ideals and lower nutritional status. Further studies examining this association at various stages of the fertility transition will elucidate whether reported ideal or optimal family sizes are flexible as trade-offs between quality and quantity of children shift during the transition to lower fertility., (© 2018 John Wiley & Sons Ltd.)
- Published
- 2018
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45. Towards superlubricity in nanostructured surfaces: the role of van der Waals forces.
- Author
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Echeverrigaray FG, S de Mello SR, Leidens LM, H Maia da Costa ME, Alvarez F, Burgo TAL, Michels AF, and Figueroa CA
- Abstract
Hydrogenated amorphous carbon (a-C:H) thin films have a unique combination of properties that are fundamental in mechanical and electromechanical devices aimed at energy efficiency issues. The literature brings a wealth of information about the ultra-low friction (superlubricity) mechanism in a-C:H thin films. However, there is persistent controversy concerning the physicochemical mechanisms of contact mechanics at the atomic/molecular level and the role of electrical interactions at the sliding interface is still a matter of debate. We find that the hydrogenation of the outermost nanostructured surface atomic layers of a-C:H thin films is proportional to the surface potential and also to the friction forces arising at the sliding interface. A higher hydrogen-to-carbon ratio reduces the surface potential, directly affecting frictional forces by a less effective long-term interaction. The structural ultra-low friction (superlubricity) is attributed to a lower polarizability at the outermost nanostructured layer of a-C:H thin films due to a higher hydrogen density, which renders weaker van der Waals forces, in particular London dispersion forces. More hydrogenated nanodomains at the surface of a-C:H thin films are proposed to be used to tailor superlubricity.
- Published
- 2018
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46. What do people know about fertility? A systematic review on fertility awareness and its associated factors.
- Author
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Pedro J, Brandão T, Schmidt L, Costa ME, and Martins MV
- Subjects
- Age Factors, Female, Health Policy, Humans, Infertility, Male, Patient Education as Topic, Risk Factors, Fertility physiology, Health Knowledge, Attitudes, Practice
- Abstract
Introduction: Recent evidence indicates that reproductive-age people have inadequate fertility awareness (FA) concerning fertility, infertility risk factors, and consequences of delaying childbearing. However, no study has tried to summarize these studies and to clarify the variables associated with FA, namely the role of gender, age, education, and reproductive status on FA., Methods: A literature search up to February 2017 was conducted using the EBSCO, Web of Science, Scielo, and Scopus electronic databases with combinations of keywords and MeSH terms (e.g. 'awareness' OR 'health knowledge, attitudes, practice' AND 'fertility'; 'fertile period'; 'assisted reprod*')., Results: Seventy-one articles met the eligibility criteria and were included. The main results showed that participants report low-to-moderate FA. Higher levels of FA were shown by women, highly educated individuals, people who reported difficulties with conceiving, and those who had planned their pregnancies. Having or desiring to have children was not related to FA level. An inconsistent association between study participant age and FA was observed, with some studies indicating that older participants had higher FA, but others found an opposite result or did not find any association., Conclusion: The current findings suggest that interventions to increase FA are warranted, especially those targeting men, people with low education, and in family planning settings. Interventions and campaigns should be customized to meet individuals' needs regarding FA. Because of the high heterogeneity regarding the assessment of FA, these conclusions must be interpreted with caution.
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- 2018
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47. Establishment and characterization of in vivo orthotopic bioluminescent xenograft models from human osteosarcoma cell lines in Swiss nude and NSG mice.
- Author
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Marques da Costa ME, Daudigeos-Dubus E, Gomez-Brouchet A, Bawa O, Rouffiac V, Serra M, Scotlandi K, Santos C, Geoerger B, and Gaspar N
- Subjects
- Animals, Cell Line, Tumor, Disease Models, Animal, Humans, Luminescent Measurements, Mice, Mice, Nude, Osteosarcoma pathology, Xenograft Model Antitumor Assays, Osteosarcoma diagnosis
- Abstract
Osteosarcoma is one of the most common primary bone tumors in childhood and adolescence. Metastases occurrence at diagnosis or during disease evolution is the main therapeutic challenge. New drug evaluation to improve patient survival requires the development of various preclinical models mimicking at best the complexity of the disease and its metastatic potential. We describe here the development and characteristics of two orthotopic bioluminescent (Luc/mKate2) cell-derived xenograft (CDX) models, Saos-2-B-Luc/mKate2-CDX and HOS-Luc/mKate2-CDX, in different immune (nude and NSG mouse strains) and bone (intratibial and paratibial with periosteum activation) contexts. IVIS SpectrumCT system allowed both longitudinal computed tomography (CT) and bioluminescence real-time follow-up of primary tumor growth and metastatic spread, which was confirmed by histology. The murine immune context influenced tumor engraftment, primary tumor growth, and metastatic spread to lungs, bone, and spleen (an unusual localization in humans). Engraftment in NSG mice was found superior to that found in nude mice and intratibial bone environment more favorable to engraftment compared to paratibial injection. The genetic background of the two CDX models also led to distinct primary tumor behavior observed on CT scan. Saos-2-B-Luc/mKate2-CDX showed osteocondensed, HOS-Luc/mKate2-CDX osteolytic morphology. Bioluminescence defined a faster growth of the primary tumor and metastases in Saos-2-B-Luc/mKate2-CDX than in HOS-Luc/mKate2-CDX. The early detection of primary tumor growth and metastatic spread by bioluminescence allows an improved exploration of osteosarcoma disease at tumor progression, and metastatic spread, as well as the evaluations of anticancer treatments. Our orthotopic models with metastatic spread bring complementary information to other types of existing osteosarcoma models., (© 2018 The Authors. Cancer Medicine published by John Wiley & Sons Ltd.)
- Published
- 2018
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48. Corrigendum: COMPI Fertility Problem Stress Scales is a brief, valid and reliable tool for assessing stress in patients seeking treatment.
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Sobral MP, Costa ME, Schmidt L, and Martins MV
- Published
- 2018
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49. Marital adjustment in the context of female breast cancer: A systematic review.
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Brandão T, Pedro J, Nunes N, Martins MV, Costa ME, and Matos PM
- Subjects
- Adult, Communication, Emotions, Female, Humans, Male, Middle Aged, Self Efficacy, Adaptation, Psychological, Breast Neoplasms psychology, Marriage psychology, Social Support, Spouses psychology
- Abstract
Objective: Breast cancer (BC) diagnosis and subsequent treatments present significant challenges and distress for both patients and their partners. This can lead to difficulties in marital relationships and, consequently, decreases in marital adjustment and psychosocial adaptation to BC for both partners. Our objective was to systematically review studies assessing marital adjustment in the context of female BC to understand which factors are associated with marital adjustment in both patients and partners and characterize the measures used to assess marital adjustment within these studies., Methods: This systematic review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. English, peer-reviewed articles exploring factors associated with marital adjustment in the context of female BC were considered for inclusion., Results: Fourteen studies were included. Results evidenced that psychosocial variables play an important role on marital adjustment. Specifically, open and constructive communication, more social support, and supportive dyadic coping were found to be associated with higher levels of marital adjustment. Other variables such as self-efficacy, sexual functioning, and psychological adjustment were also positively associated with marital adjustment., Conclusions: Most studies evidenced an association between psychosocial variables and marital adjustment for both women and their partners. Some important dimensions such as communication patterns, coping strategies, and social support dynamics were identified as potential targets for psychological interventions. Some variables, however, were explored only in a few studies, which limit our conclusions. Future studies should explore the role these variables and other relational and emotional variables play in promoting marital adjustment after BC., (Copyright © 2017 John Wiley & Sons, Ltd.)
- Published
- 2017
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50. Occupational Burnout Syndrome in the nursing context: an integrative literature review.
- Author
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Medeiros-Costa ME, Maciel RH, Rêgo DPD, Lima LL, Silva MEPD, and Freitas JG
- Subjects
- Humans, Burnout, Professional, Nursing
- Abstract
Objective: To characterize the scientific production on Burnout Syndrome in the Nursingcontext, systematizing the location where the studies were carried out, the related constructs, the employed methods and their main results., Method: An integrative review of the literature with a bibliometric approach of articles published in Portuguese, Spanish and English between 2005 and 2016., Results: 106 articles wereincluded. Mostinvolvedprevalence, and were descriptive, quantitative studies performed in hospitals.The Southeastern and Southern regions of Brazil had the largest number of publications, and stress was the construct most related to burnout.Most of the studies used the Maslach Burnout Inventory to investigate the presence of the syndrome., Conclusion: New case-control and cohort studies should be carried out.Qualitative-exploratory studies are necessary to better understand Burnout Syndrome among nursing professionals usingfocus groups or interviews, as well as comparative causal studies, with the purpose of exploring the syndrome'smanifestations., Objetivo: Caracterizar a produção científica sobre a Síndrome do Esgotamento Profissionalno contexto da enfermagem, sistematizando os locais onde as pesquisas foram realizadas, os construtos relacionados, os métodos empregados e seus principais resultados., Método: Revisão integrativa da literatura, com abordagem bibliométrica, em artigos na língua portuguesa, espanhola e inglesa publicados entre 2005 e 2016., Resultados: Foram selecionados 106 artigos.A maioria estudos de prevalência, descritivos, quantitativos e realizados em hospitais. Nas regiões Sudeste e Sul do Brasil encontram-se o maior número de publicações, sendo o estresse o construto mais relacionado com o esgotamento profissional. A maior parte dos estudos utilizou o Maslach Burnout Inventory como meio de averiguação da presença da síndrome., Conclusão: Novos estudos de caso controle e coorte devem ser realizados. Pesquisas de cunho qualitativo-exploratório são necessárias para poder compreender melhor a Síndrome do Esgotamento Profissionalentre os profissionais de enfermagem com grupos focais ou entrevistas, como também pesquisas causais comparativas, com o intuito de explorar as manifestações da síndrome.
- Published
- 2017
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