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Veloso Gonçalves M, Teixeira C, Lopes De Almeida C, Baptista Freitas M, Valente A, Costa M, Marques Ribeiro M, Augusto I, Barbosa M, Meireles S. Prognostic evaluation in hormonosensitive metastatic prostate cancer taking into account the stratification criteria of the LATITUDE and CHARTED studies - the experience of one center. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02533-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Valente A, J. Costa M, Nogueira Costa I, Reis J, Baptista Freitas M, Lopes Almeida C, Teixeira C, Veloso Gonçalves M, Ribeiro M, Meireles S, Barbosa M, Augusto I. Sunitinib treatment modification in metastatic renal cell carcinoma – the impact of 2/1 dosing schedule and dose reduction in survival outcomes. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02552-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Valente A, J. Costa M, Nogueira Costa I, Reis J, Baptista Freitas M, Lopes De Almeida C, Ribeiro M, Meireles S, Augusto I. Cabazitaxel as 3rd-4th line of treatment in castration-resistant metastatic prostate cancer - assessment of the impact of prior treatments on survival outcomes. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03145-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Costa I, Reis J, Valente C, Costa M, Fernandes C, Ribeiro M, Meireles S, Augusto I. Prognostic value of tPSA’s early response in elderly patients with metastatic castration-resistant prostate cancer in treatment with Enzalutamide. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)36206-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Simões J, Fernandes C, Borges C, Melo R, Sarmento C, Meireles S. Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy in malignant peritoneal disease: a review on outcomes for colorectal cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tavares N, Simões J, Borges C, Meireles S, Costa A, Fernandes C, Caeiro C, Damasceno M. Bevacizumab-induced hypertension correlation with survival in recurrent glioblastoma multiforme. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy273.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Simões J, Tavares N, Borges C, Meireles S, Fernandes C, Costa A, Caeiro C, Damasceno M. Second-line treatment of bevacizumab plus lomustine versus bevacizumab plus irinotecan in patients with recurrent glioblastoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy273.370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tavares N, Costa A, Almeida D, Meireles S, Fernandes C, Rey C, Sarmento C, Damasceno M. The prognostic impact of sidedness in RAS wild-type colorectal cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Meireles S, Wesseling M, Smith CR, Thelen DG, Verschueren S, Jonkers I. Medial knee loading is altered in subjects with early osteoarthritis during gait but not during step-up-and-over task. PLoS One 2017; 12:e0187583. [PMID: 29117248 PMCID: PMC5678707 DOI: 10.1371/journal.pone.0187583] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 10/23/2017] [Indexed: 11/18/2022] Open
Abstract
This study evaluates knee joint loading during gait and step-up-and-over tasks in control subjects, subjects with early knee OA and those with established knee OA. Thirty-seven subjects with varying degrees of medial compartment knee OA severity (eighteen with early OA and sixteen with established OA), and nineteen healthy controls performed gait and step-up-and-over tasks. Knee joint moments, contact forces (KCF), the magnitude of contact pressures and center of pressure (CoP) location were analyzed for the three groups for both activities using a multi-body knee model with articular cartilage contact, 14 ligaments, and six degrees of freedom tibiofemoral and patellofemoral joints. During gait, the first peak of the medial KCF was significantly higher for patients with early knee OA (p = 0.048) and established knee OA (p = 0.001) compared to control subjects. Furthermore, the medial contact pressure magnitudes and CoP location were significantly different in both groups of patients compared to controls. Knee rotation moments (KRMs) and external rotation angles were significantly higher during early stance in both patient groups (p < 0.0001) compared to controls. During step-up-and-over, there was a high variability between the participants and no significant differences in KCF were observed between the groups. Knee joint loading and kinematics were found to be altered in patients with early knee OA only during gait. This is an indication that an excessive medial KCF and altered loading location, observed in these patients, is a contributor to early progression of knee OA.
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Affiliation(s)
- Susana Meireles
- Department of Kinesiology, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Mariska Wesseling
- Department of Kinesiology, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Colin R. Smith
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Darryl G. Thelen
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Sabine Verschueren
- Department of Rehabilitation Sciences, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Ilse Jonkers
- Department of Kinesiology, Katholieke Universiteit Leuven, Leuven, Belgium
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Meireles S, De Groote F, Van Rossom S, Verschueren S, Jonkers I. Differences in knee adduction moment between healthy subjects and patients with osteoarthritis depend on the knee axis definition. Gait Posture 2017; 53:104-109. [PMID: 28126693 DOI: 10.1016/j.gaitpost.2017.01.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 12/14/2016] [Accepted: 01/16/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study, firstly, investigates the effect of using an anatomical versus a functional axis of rotation (FAR) on knee adduction moment (KAM) in healthy subjects and patients with knee osteoarthritis (KOA). Secondly, this study reports KAM for models with FAR calculated using weight-bearing and non-weight-bearing motion. DESIGN Three musculoskeletal models were created using OpenSim with different knee axis of rotation (AR): transepicondylar axis (TEA); FAR calculated based on SARA algorithm using a weight-bearing motion (wFAR) and a non-weight-bearing motion (nwFAR). KAM were calculated during gait in fifty-nine subjects (n=20 healthy, n=16 early OA, n=23 established OA) for all models and groups. RESULTS Significant differences between the three groups in the first peak KAM were found when TEA was used (p=0.038). However, these differences were no longer present when using FAR. In subjects with established OA, KAMs were significantly reduced when using nwFAR compared to TEA models but also compared to wFAR models. CONCLUSION The presence of excessive KAM in subjects with established KOA showed to be dependent on the definition of the AR: anatomical versus functional. Therefore, caution should be accounted when comparing KAM in different studies on KOA patients. In patients with end-stage knee OA where increased passive knee laxity is likely to exist, the use of weight-bearing motions should be considered to avoid increased variability in the location and orientation of a FAR obtained from activities with only limited joint loading.
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Affiliation(s)
- S Meireles
- Department of Kinesiology, KU Leuven, Belgium.
| | - F De Groote
- Department of Kinesiology, KU Leuven, Belgium.
| | | | - S Verschueren
- Department of Rehabilitation Sciences, KU Leuven, Belgium.
| | - I Jonkers
- Department of Kinesiology, KU Leuven, Belgium.
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Gentil F, Meireles S, Roza T, Santos C, Parente M, Almeida E, Natal R. Comparison of otoacoustic emissions in patients with tinnitus having normal hearing versus mild hearing loss. Int Tinnitus J 2016; 19:39-46. [PMID: 27186931 DOI: 10.5935/0946-5448.20150007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Tinnitus is an auditory sensation whose source comes from external stimulus to the body. All studies that can help people with this disorder are very imperative. OBJECTIVE This study investigates the cochlear function in patients with tinnitus, using Distortion Products Otoacoustic Emissions (DPOAE). MATERIAL AND METHODS Ears where the subjects referred to feel the tinnitus were considered for the study group while other ears without this sensation of tinnitus acted as a control group. Fifty subjects suffering from unilateral or bilateral tinnitus with normal hearing sensitivity or mild hearing loss were recruited. RESULTS AND CONCLUSIONS Where comparing the control and study group, the highest percentage of cases of DPOAE detected was in the control group, although these differences were not statistically significant. When the analyzed frequency is the same as the tinnitus frequency, the prevalence of detected DPOAE is in tinnitus ears (50.0 %). In ears where tinnitus was not perceived (73.5 %) a p value of 0.024 (< 0.05) was found, which means that the undetected DPOAE could be influenced by tinnitus. Based on the results, tinnitus might not be caused by changes in the outer hair cells but seems to be affected by that.
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Meireles S, De Groote F, Reeves ND, Verschueren S, Maganaris C, Luyten F, Jonkers I. Knee contact forces are not altered in early knee osteoarthritis. Gait Posture 2016; 45:115-20. [PMID: 26979892 DOI: 10.1016/j.gaitpost.2016.01.016] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 12/11/2015] [Accepted: 01/17/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study calculated knee contact forces (KCF) and its relations with knee external knee adduction moments (KAM) and/or flexion moments (KFM) during the stance phase of gait in patients with early osteoarthritis (OA), classified based on early joint degeneration on Magnetic Resonance Imaging (MRI). We aimed at assessing if altered KCF are already present in early structural degeneration. DESIGN Three-dimensional motion and ground reaction force data in 59 subjects with medial compartment knee OA (N=23 established OA, N=16 early OA, N=20 controls) were used as input for a musculoskeletal model. KAM and KFM, and KCF were estimated using OpenSim software. RESULTS No significant differences were found between controls and subjects with early OA. In early OA patients, KAM significantly explained 69% of the variance associated with the first peaks KCF but only KFM contributed to the second peaks KCF. The multiple correlation, combining KAM and KFM, showed to be higher. However, only 20% of the variance of second peak KCF was explained by both moments in established OA. CONCLUSION KCF are not increased in patients with early OA, suggesting that knee joint overload is more a consequence of further joint degeneration in more advanced stages of OA. Additionally, our results clearly show that KAM is not sufficient to predict joint loading at the end of the stance, where KFM contributes substantially to the loading, especially in early OA.
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Affiliation(s)
- S Meireles
- Department of Kinesiology, KU Leuven, Belgium.
| | - F De Groote
- Department of Mechanical Engineering, KU Leuven, Belgium.
| | - N D Reeves
- School of Healthcare Science, Manchester Metropolitan University, United Kingdom.
| | - S Verschueren
- Department of Rehabilitation Sciences, KU Leuven, Belgium.
| | - C Maganaris
- School of Sport and Exercise Sciences, Liverpool John Moores University, United Kingdom.
| | - F Luyten
- Department of Development and Regeneration, KU Leuven, Belgium.
| | - I Jonkers
- Department of Kinesiology, KU Leuven, Belgium.
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Completo A, Simões J, Fonseca F, Ramos A, Relvas C, Oliveira M, Pereira J, Meireles S. Combined Bone-Implant Fixation: A Pre-Clinical Hip Stem Evaluation. J Med Device 2012. [DOI: 10.1115/1.4026681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | - Susana Meireles
- Department of Mechanical Engineering
University of Aveiro, Portugal
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Completo A, Coutinho M, Schiller M, Ramos A, Relvas C, Simões J, Meireles S. A Device to Control Implant and Bone-Cement Temperatures in Cemented Arthroplasty. J Med Device 2011. [DOI: 10.1115/1.3589216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Meireles S, Completo A, António Simões J, Flores P. Strain shielding in distal femur after patellofemoral arthroplasty under different activity conditions. J Biomech 2010; 43:477-84. [DOI: 10.1016/j.jbiomech.2009.09.048] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2009] [Revised: 09/27/2009] [Accepted: 09/28/2009] [Indexed: 10/20/2022]
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Dubey JP, Vianna MCB, Sousa S, Canada N, Meireles S, Correia da Costa JM, Marcet PL, Lehmann T, Dardé ML, Thulliez P. Characterization of Toxoplasma gondii Isolates in Free-Range Chickens From Portugal. J Parasitol 2006; 92:184-6. [PMID: 16629334 DOI: 10.1645/ge-652r.1] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The prevalence of Toxoplasma gondii in free-ranging chickens is a good indicator of the prevalence of T. gondii oocysts in the soil because chickens feed from the ground. The prevalence of T. gondii in 225 free-range chickens (Gallus domesticus) from Portugal was determined. Antibodies to T. gondii were assayed by the modified agglutination test (MAT) and found in 61 chickens with titers of 1:5 in 8, 1:10 in 6, 1:20 in 3, 1:40 in 23, 1:80 in 5, 1:160 in 4, 1:320 in 8, and 1:640 or higher in 4. Hearts, leg muscles, and brains of 15 seropositive (MAT 1:10 or higher) chickens were bioassayed individually in mice. Tissue from 38 chickens with titers of 1:5 or less were pooled and fed to a T. gondii-free cat. Feces of the cat were examined for oocysts, but none was found. Toxoplasma gondii was isolated from 16 of 19 chickens with MAT titers of 1:10 or higher. Genotyping of 12 of these 16 isolates with polymorphisms at the SAG2 locus indicated that 4 were type III, and 8 were type II. None of the isolates was lethal for mice. Phenotypically, T. gondii isolates from chickens from Portugal were different from those of T. gondii isolates from chickens from Brazil.
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Affiliation(s)
- J P Dubey
- U.S. Department of Agriculture, Agricultural Research Service, Animal and Natural Resources Institute, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350, USA.
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