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Summary: Background. Patients and Public Involvement in every stage of the patient-centered health research cycle is the key to the development of innovative solutions with an impact on patients' care. Methods. This protocol describes the development of ConectAR, a network to promote the involvement of patients with asthma and their carers in the health research cycle. Results. This protocol comprehends 4 tasks: 1) define the mission, vision, governance and activities of the network through focus groups; 2) establish the communication strategy and tools; 3) test the feasibility of the network in a Delphi study on the research priorities for asthma in Portugal; 4) coordination and dissemination activities. Conclusions. This network will improve research by ensuring that patients and carers have an active role in the co-creation of impactful solutions for asthma.
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Asma , Cuidadores , Humanos , Grupos Focales , PortugalRESUMEN
Objectives: The objectives of this scoping review are to discuss, firstly, the positive aspects of wearing face masks during training (such as a barrier to COVID-19 transmission, air pollutant exposure, and adding load on respiratory resistance flow); secondly, the negative aspects (adverse effects on body temperature and hypoxia risks); and thirdly, the training responses of wearing face masks on aerobic and anaerobic performance. News: Besides social distancing and hand hygiene, wearing a face mask is proposed to be the prime advocacy for virus containment. During the period of high risk of contamination, the return to sport guidelines proposed by international and national sport federations included wearing face masks during training sessions. However, it is necessary to discuss the pros and cons of wearing face masks during exercise. Prospects: Although it was essential to wear a face mask during exercise or sport-specific training, there is conflicting evidence on the implications of the use of face masks on physical, physiological as well as psychological well-being or performance. Based on the conflicting empirical findings and anecdotal evidence, certain recommendations have been made for adequate use of face masks during exercise; both to break the chain of transmission and prevent the physiological compromise expected from wearing face masks during exercise. The present review can help stakeholders balance sport guidelines in the event of a respiratory virus pandemic with athlete safety. Conclusion: Conflicting evidence of mechanistic links between the dose of exercise and the possible adverse effects associated with exercising with face masks is available. Adequately powered studies with strong methodological quality on appropriate selection of masks and usage based on the intensity, duration, and type of sport, age, and gender is needed now for the stakeholders to make informed decisions with respect to exercising with face masks.
Objectifs: Les objectifs de cette revue des connaissances sont de discuter, premièrement, les aspects positifs du port de masques pendant l'entraînement (comme une barrière à la transmission du COVID-19, l'exposition aux polluants atmosphériques et l'ajout de charge sur le flux de résistance respiratoire) ; deuxièmement, les aspects négatifs (effets indésirables sur la température corporelle et risques d'hypoxie) ; et troisièmement, les conséquences du port de masques faciaux à l'entraînement sur les performances aérobie et anaérobie. Nouvelles connaissances: Outre la distanciation physique et l'hygiène des mains, le port d'un masque facial est proposé comme le principal plaidoyer pour la maîtrise des contaminations par le nouveau coronavirus. Pendant la période à haut risque de contamination, les directives de retour au sport proposées par les fédérations sportives internationales et nationales incluaient le port de masques lors des séances d'entraînement. Cependant, il est nécessaire de discuter les avantages et les inconvénients du port de masques faciaux pendant l'exercice. Perspectives: Bien qu'il fut essentiel de porter un masque facial pendant l'exercice ou l'entraînement spécifique au sport, il existe des preuves contradictoires sur les implications des masques faciaux sur les performances physiques, physiologiques, et le bien-être psychologique. Sur la base des résultats contradictoires et de données empiriques, certaines recommandations ont été faites pour une utilisation optimale de masques faciaux pendant l'exercice, à la fois pour briser la chaîne de transmission du virus et éviter le compromis physiologique attendu du port des masques faciaux pendant l'exercice. La présente revue peut aider les parties prenantes à trouver un équilibre entre les directives sportives en cas de pandémie par un virus respiratoire et la sécurité des athlètes. Conclusion: Il existe des données contradictoires sur les liens mécanistiques entre la dose d'exercice et les effets indésirables possibles associés à l'exercice avec des masques faciaux. Des études de qualité au plan méthodologique, sur la sélection des masques, leur utilisation en fonction de l'intensité, de la durée et du type de sport, de l'âge et du sexe des sportifs sont nécessaires pour que les parties prenantes puissent prendre des décisions éclairées en ce qui concerne l'exercice avec des masques faciaux.
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BACKGROUND: Incidence of stroke is increasing in sub-Saharan Africa. People who survive stroke experience disability and require long-term care. Health systems in South Africa (SA) are experiencing important challenges, and services in the public health system for people with stroke (PWS) are fragmented. We aimed to explore the perspectives and experiences of PWS related to stroke care services to inform health system strengthening measures. METHODS: In-depth interviews with 16 PWS in urban and rural areas in the Western and Eastern Cape Provinces of SA were conducted between August and October 2020. PWS were recruited through existing research networks, non-government organisations and organisations of persons with disabilities by snowball sampling. Interviews were transcribed, coded, and thematically analysed. We used the conceptual framework of access to health care as proposed by Levesque et al. to map and inform barriers to accessing health care from the user perspective. RESULTS: PWS recognised the need for health care when they experienced signs of acute stroke. Health literacy on determinants of stroke was low. Challenges to accessing stroke care include complex pathways to care, physical mobility related to stroke, long travel distances and limited transport options, waiting times and out of pocket expenses. The perceived quality of services was influenced by cultural beliefs, attitudinal barriers, and information challenges. Some PWS experienced excellent care and others particularly poor care. Positive staff attitude, perceived competence and trustworthiness went in hand with many technical and interpersonal deficits, such as long waiting times and poor staff attitude that resulted in poor satisfaction and reportedly poor outcomes for PWS. CONCLUSIONS: Strategic leadership, governance and better resources at multiple levels are required to address the unmet demands and needs for health care of PWS. Stroke care could be strengthened by service providers routinely providing information about prevention and symptoms of stroke, treatment, and services to patients and their social support network. The role of family members in continuity of care could be strengthened by raising awareness of existing resources and referral pathways, and facilitating connections within services.
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Accesibilidad a los Servicios de Salud , Accidente Cerebrovascular , Instituciones de Salud , Humanos , Investigación Cualitativa , Sudáfrica , Accidente Cerebrovascular/terapiaRESUMEN
OBJECTIVES: The aim of this study was to adapt and validate the Schizophrenia Caregiver's Quality of Life Questionnaire (S-CGQoL) for use in the Hispanic-American population from the caregiver's perspective. METHODS: A cross-sectional instrumental model was used, with a sample of 253 caregivers of patients suffering of Schizophrenia in Bolivia, Peru and Chile. The psychometric properties of the S-CGQoL were tested through construct validity, reliability and some aspects of external validity. In addition, in order to assess the nature of the different items across the three countries, a Differential Performance Analysis (DPA) was conducted. RESULTS: A confirmatory factor analysis showed that the scale structure was well correlated to the initial structure of the QoL-MDS. The results confirmed the existence of adequate reliability indicators (α>.70 and ω>.80) and the absence of FIDs supporting the invariance of item calibrations among the three Latin American countries. CONCLUSIONS: The adaptation and validation of the S-CGQoL questionnaire demonstrate adequate psychometric properties to assess the quality of life of caregivers in samples of middle-income countries in Latin America.
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Calidad de Vida , Esquizofrenia , Cuidadores , Comparación Transcultural , Estudios Transversales , Humanos , América Latina , Psicometría , Reproducibilidad de los Resultados , Encuestas y CuestionariosRESUMEN
INTRODUCTION: The purpose of this article is to present the results of a qualitative survey conducted by user representatives (URs) focusing on the health care safety experience of hospitalized patients. The authors wished to identify factors associated with safety of care and, more specifically, with the possibly ominous medical events reported by patients. METHODS: After being trained with these objectives in mind, eight URs conducted semi-directive interviews with fourteen patients hospitalized in eleven separate hospital units in nine different hospitals. RESULTS: Eight types of factors consisting in 30 contributing factors liable to be reported by patients were identified: 1) factors related to patients' basic needs; 2) personalization of care; 3) professional factors; 4) organizational factors; 5) communication factors; 6) caregiver responsiveness; 7) infectious risks; 8) continuity of care. Patients' overall feelings about their hospitalization remained excellent notwithstanding more tempered, even negative experiences. CONCLUSION: This paradoxical result shows that the patients' actual experience is far more instructive than their degree of satisfaction. In light of this study, the acceptability of this type of research (i.e. research conducted by URs) is excellent and it also appears highly feasible, whatever the limitations imposed by organizational considerations.
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Aceptación de la Atención de Salud/estadística & datos numéricos , Seguridad del Paciente/estadística & datos numéricos , Satisfacción del Paciente/estadística & datos numéricos , Calidad de la Atención de Salud/estadística & datos numéricos , Competencia Clínica/estadística & datos numéricos , Continuidad de la Atención al Paciente/organización & administración , Continuidad de la Atención al Paciente/estadística & datos numéricos , Francia/epidemiología , Necesidades y Demandas de Servicios de Salud/estadística & datos numéricos , Hospitalización/estadística & datos numéricos , Hospitales/estadística & datos numéricos , Humanos , Entrevistas como Asunto , Evaluación de Resultado en la Atención de Salud , Proyectos Piloto , Relaciones Profesional-Paciente , Investigación Cualitativa , Encuestas y CuestionariosRESUMEN
We report the first measurement of the neutron cross section on argon in the energy range of 100-800 MeV. The measurement was obtained with a 4.3-h exposure of the Mini-CAPTAIN detector to the WNR/LANSCE beam at LANL. The total cross section is measured from the attenuation coefficient of the neutron flux as it traverses the liquid argon volume. A set of 2631 candidate interactions is divided in bins of the neutron kinetic energy calculated from time-of-flight measurements. These interactions are reconstructed with custom-made algorithms specifically designed for the data in a time projection chamber the size of the Mini-CAPTAIN detector. The energy averaged cross section is 0.91±0.10(stat)±0.09(syst) b. A comparison of the measured cross section is made to the GEANT4 and FLUKA event generator packages, where the energy averaged cross sections in this range are 0.60 and 0.68 b, respectively.
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INTRODUCTION: Haemophilia is related to several clinical and psychosocial challenges that have been associated with increased emotional distress. These may impact on disease adjustment and health outcomes, reinforcing the attention given to psychosocial health of people with haemophilia (PWH), in the scope of optimal comprehensive care. AIM: To identify potentially modifiable factors associated with the presence of anxiety and depression symptoms among adult PWH. METHODS: This was a cross-sectional observational study examining socio-demographic, clinical and psychosocial variables among 102 patients with haemophilia A or B who participated on a mail survey of haemophilia in Portugal. RESULTS: People with haemophilia revealing higher anxiety and depression symptoms were more likely to have had, in the previous year, more urgent hospital visits due to haemophilia, more bleeding episodes, more affected joints and pain, as well as worst levels of perceived functionality and quality of life. After controlling for demographic (age and education) and clinical (haemophilia severity and joint deterioration) variables in multivariate hierarchical logistic regression analyses, professional status (OR = 4.646, P = .004; OR = 3.333, P = .029) and pain interference (OR = 1.397, P = .011; OR = .1.347, P = .037) were significantly associated with both anxiety and depression symptoms. Additionally, physical activity (OR = 0.302, P = .024) and the perception of consequences underlying haemophilia (OR = 1.600, P = .012) also emerged as key factors significantly associated with depression symptoms. CONCLUSION: Current findings increased knowledge on factors associated with anxiety and depression among PWH. These highlight potential intervention targets, which are amenable to change through evidence-based tailored interventions aiming to decrease emotional distress, promote well-being and improving haemophilia-related health outcomes among these patients.
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Ansiedad/psicología , Depresión/psicología , Emociones/fisiología , Hemofilia A/psicología , Estrés Psicológico/psicología , Adolescente , Adulto , Anciano , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto JovenRESUMEN
AIM: To evaluate the effect of three methods of mixing on the physical and chemical properties of tricalcium silicate-based cements. METHODOLOGY: The materials evaluated were MTA Angelus and Portland cement with 20% zirconium oxide (PC-20-Zr). The cements were mixed using a 3 : 1 powder-to-liquid ratio. The mixing methods were manual (m), trituration (tr) and ultrasonic (us) activation. The materials were characterized by means of scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy. Flowability was analysed according to ANSI/ADA 57/2012. Initial and final setting times were assessed following ASTM C266/08. Volume change was evaluated using a micro-CT volumetric method. Solubility was analysed according to ADA 57/2012. pH and calcium ion release were measured after 3, 24, 72 and 168 h. Statistical analysis was performed using two-way analysis of variance. The level of significance was set at P = 0.05. RESULTS: The SEM analysis revealed that ultrasonic activation was associated with a homogeneous distribution of particles. Flowability, volume change and initial setting time were not influenced by the mixing method (P > 0.05). Solubility was influenced by the mixing method (P < 0.05). For pH, at 168 h, significant differences were found between MTA-m and PC-20-Zr-m (P < 0.05). For calcium ion release, PC-20-Zr-tr had higher values than MTA-m at 3 h, and MTA-tr had higher values than PC-20-Zr-m at 168 h (P < 0.05). CONCLUSIONS: The ultrasonic and trituration methods led to higher calcium ion release and pH compared with manual mixing for all cements, whilst the ultrasonic method produced smaller particles for the PC-20-Zr cement. Flow, setting times and volume change were not influenced by the mixing method used; however, it did have an impact on solubility.
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Compuestos de Calcio/química , Cementos Dentales/química , Silicatos/química , Fenómenos Químicos , Humanos , Microscopía Electrónica de Rastreo , Tamaño de la Partícula , Solubilidad , UltrasonidoRESUMEN
The presence of micropollutants that include endocrine-disrupting compounds (EDC) in aquatic environments is currently one of the most relevant aspects of water quality due to their adverse effects on aquatic organisms and human health. From the several categories of EDC, 17ß-estradiol (E2) is a natural hormone, which is prevalent in vertebrates, associated with the female reproductive system and maintenance of the sexual characters. 17α-Ethinylestradiol (EE2) is a synthetic hormone produced from the natural hormone E2 and is an essential component of oral contraceptives. These compounds are susceptible to bioconcentration and have high potential to bioaccumulation. Wastewater treatment plants are the main point source of E2 and EE2 into aquatic environments, but conventional wastewater treatment systems are not specifically designed for steroid removal. To overcome this problem, biological tertiary treatment may be a solution for the removal of emergent pollutants such as E2 and EE2. The main purpose of the present study is to provide a solution based on the optimization of a rotating biological contactor system to remove estrogens, specifically E2 and EE2, and to quantify their removal efficiency on different matrices, namely real wastewater and different synthetic wastewaters. All assays presented viable removal efficiencies for compound E2 with values always above 50%; real wastewater yielded the highest removal efficiencies. EE2 removal had better removal efficiencies with synthetic wastewater as feed solution, with removals above 15%, whereas the removal efficiency with real wastewater was inexistent.
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Estradiol/análisis , Etinilestradiol/análisis , Eliminación de Residuos Líquidos/métodos , Aguas Residuales/química , Contaminantes Químicos del Agua/análisis , Disruptores Endocrinos/análisis , Monitoreo del Ambiente , Estrógenos/análisis , HumanosRESUMEN
ESBL-producing Enterobacteriaceae and particularly Escherichia coli ST131 isolates producing CTX-M enzymes are commonly found colonizing the intestine of nursing home (NH) residents, but ST131 subclonal structure has been scarcely explored in this vulnerable population. Our goal was to perform a pilot study to assess the faecal carriage rate and epidemiological features of ESBL- and/or carbapenemase-producing Enterobacteriaceae (ESBL-E and CPE, respectively) among NH residents. For this purpose, faecal samples from residents at 4 different NHs in the North of Portugal (representing 9·5% of the residents' population, July 2014) were screened for ESBL-E and/or CPE by phenotypic and genotypic methods. Clonal structure and plasmid typing of ESBL-producing E. coli (ESBL-Ec) was performed by PCR and sequencing. Four ESBL-Ec isolates (2 CTX-M-15/2 CTX-M-14) were found in 20% of the samples, all belonging to the pandemic clonal lineage B2-ST131-O25b:H4. Two different clades were identified, the C2/H30-Rx-virotype C producing CTX-M-15 and an atypical B/H22-like-virotype D5 (producing CTX-M-14 and fluoroquinolone-resistant), firstly described in Portugal. This pilot study highlights the role of NH residents as a source of different ST131 clades, besides emphasizing the importance of E. coli B2-ST131 subtyping in different clinical settings, and understanding the transmission dynamics of the different variants.
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Escherichia coli/enzimología , Casas de Salud/estadística & datos numéricos , beta-Lactamasas/metabolismo , Anciano , Anciano de 80 o más Años , Antibacterianos/uso terapéutico , Enterobacteriaceae Resistentes a los Carbapenémicos/efectos de los fármacos , Enterobacteriaceae Resistentes a los Carbapenémicos/enzimología , Enterobacteriaceae Resistentes a los Carbapenémicos/genética , Escherichia coli/efectos de los fármacos , Escherichia coli/genética , Infecciones por Escherichia coli/tratamiento farmacológico , Infecciones por Escherichia coli/epidemiología , Infecciones por Escherichia coli/microbiología , Heces/microbiología , Femenino , Técnicas de Genotipaje , Humanos , Masculino , Reacción en Cadena de la Polimerasa , Portugal/epidemiología , Resistencia betalactámicaRESUMEN
Systemic lupus erythematosus (SLE) affects predominantly women at reproductive age but may present at any age. Age at disease onset has a modulating effect on presentation and course of disease, but controversies persist regarding its impact on long-term outcome. Our aims were to characterize clinical features, co-morbidities and cumulative damage in childhood-onset, adult-onset and late-onset SLE. Patients with childhood-onset SLE fulfilling ACR 1997 criteria were identified in a nationwide register-Reuma.pt/SLE (N = 89) and compared with adult-onset and late-onset counterparts matched 1:1:1 for disease duration. 267 SLE patients with mean disease duration of 11.9 ± 9.3 years were analyzed. Skin (62 %), kidney (58 %), neurological (11 %) and hematologic involvement (76 %) were significantly more common in childhood-onset SLE and disease activity was higher in this subset than in adult- and late-onset disease (SLEDAI-2K 3.4 ± 3.8 vs. 2.2 ± 2.7 vs. 1.6 ± 2.8, respectively; p = 0.004). Also, more childhood-onset patients received cyclophosphamide (10 %) and mycophenolate mofetil (34 %). A greater proportion of women (96 %), prevalence of arthritis (89 %) and anti-SSA antibodies (34 %) were noted in the adult-onset group. There was a significant delay in the diagnosis of SLE in older ages. Co-morbidities such as hypertension, diabetes and thyroid disease were significantly more frequent in late-onset SLE, as well as the presence of irreversible damage evaluated by the SLICC/ACR damage index (20 vs. 26 vs. 40 %; p < 0.001). Greater organ involvement as well as the frequent need for immunosuppressants supports the concept of childhood-onset being a more severe disease. In contrast, disease onset is more indolent but co-morbidity burden and irreversible damage are greater in late-onset SLE, which may have implications for patients' management.
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Lupus Eritematoso Sistémico , Adolescente , Adulto , Factores de Edad , Edad de Inicio , Anciano , Niño , Comorbilidad , Estudios Transversales , Femenino , Humanos , Inmunosupresores/uso terapéutico , Lupus Eritematoso Sistémico/diagnóstico , Lupus Eritematoso Sistémico/tratamiento farmacológico , Lupus Eritematoso Sistémico/epidemiología , Masculino , Persona de Mediana Edad , Portugal/epidemiología , Prevalencia , Pronóstico , Sistema de Registros , Estudios Retrospectivos , Factores de Riesgo , Índice de Severidad de la Enfermedad , Factores Sexuales , Factores de Tiempo , Adulto JovenRESUMEN
The aim of this study was to undertake the theoretical derivations of non-parametric methods, which use linear regressions based on rank order, for stability analyses. These methods were extension different parametric methods used for stability analyses and the result was compared with a standard non-parametric method. Intensive computational methods (e.g., bootstrap and permutation) were applied, and data from the plant-breeding program of the Biology Department of UFLA (Minas Gerais, Brazil) were used to illustrate and compare the tests. The non-parametric stability methods were effective for the evaluation of phenotypic stability. In the presence of variance heterogeneity, the non-parametric methods exhibited greater power of discrimination when determining the phenotypic stability of genotypes.
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Genotipo , Modelos Estadísticos , Phaseolus/genética , Fenotipo , Brasil , Variación Genética , Humanos , FitomejoramientoRESUMEN
The common bean is a food with high mineral content. Of the various types of beans cultivated in Brazil, carioca type beans are the most consumed. The aim of this study was to identify promising common bean populations with an emphasis toward the selection of carioca type bean lines with high calcium content. We also aimed to verify whether and how the crop season and the genotype (parental line and hybrid populations) x crop season interaction affect calcium content. A group of 3 lines of good agronomic characteristics were crossed with a group of 4 lines with high calcium content in a 3 x 4 partial diallel design. Great variability was identified among both the parental lines and the hybrid populations derived from the diallel crosses among the parental lines. We found significant interactions between crop season and both parental line and hybrid population. In the diallel analysis, only the general combining ability was significant, explaining 89.4% of the sum of squares. The RP-1, CNF05, and Safira lines exhibited the greatest calcium contents and a positive GCA. RP-1 is a line that presents high calcium content, in addition to having carioca type beans and an upright plant with high yield. To further increase the calcium content of the RP-1 line, we suggest crossing it with the CNF05 and Safira lines. Although there was a hybrid population x crop season interaction, it was possible to identify populations that performed best in terms of calcium content in both crop seasons.
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Calcio/metabolismo , Interacción Gen-Ambiente , Phaseolus/genética , Variación Genética , Phaseolus/metabolismo , Fitomejoramiento , Selección ArtificialRESUMEN
The aim of this study was to determine the prevalence of polymorphisms in the glutathione S-transferase genes GSTM1 and GSTT1 in patients with lens opacity (cataract). Peripheral blood samples were obtained from male and female patients (N = 23) with cataract. The GSTM1 and GSTT1 polymorphic regions were amplified by polymerase chain reaction, and the amplification products were electrophoresed on a 2% agarose gel. The obtained bands were by staining with ethidium bromide. The results were compared by a chi-square test using the BioEstat software (v.5.0). The frequencies of the GSTM1- and GSTT1-null genotypes were higher than those of the GSTM1- and GSTT1-present genotypes. The frequency of GSTT1-null genotypes was approximately 1.7 times higher than that of GSTM1, which was a statistically significant difference (P = 0.0019). Although a consensus remains to be reached on the correlation between genetic polymorphisms in GSTs and cataract susceptibility, the observations from most scientific studies are similar to those reported in this study. Thus, we conclude that the absence of these genes, particularly GSTT1, is correlated with the development of lens opacity.
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Catarata/diagnóstico , Catarata/genética , Predisposición Genética a la Enfermedad , Glutatión Transferasa/genética , Polimorfismo Genético , Adulto , Catarata/patología , Femenino , Expresión Génica , Frecuencia de los Genes , Glutatión Transferasa/deficiencia , Humanos , Cristalino/metabolismo , Cristalino/patología , Masculino , Persona de Mediana EdadRESUMEN
AIMS: Metallothioneins (MTs) are proteins associated with the carcinogenesis and prognosis of various tumours. Previous studies have shown their potential as biomarkers in oral squamous cell carcinoma (OSCC). Aiming to understand more clearly the function of MTs in OSCC we evaluated, for the first time, the gene expression profile of MTs in this neoplasm. MATERIALS AND RESULTS: Tissue samples from 35 cases of tongue and/or floor of mouth OSCC, paired with their corresponding non-neoplastic oral mucosa (NNOM), were retrieved (2007-09). All tissues were analysed for the following genes using TaqMan(®) reverse transcription-quantitative polymerase chain reaction (RT-qPCR) assays: MT1A, MT1B, MT1E, MT1F, MT1G, MT1H, MT1X, MT2A, MT3 and MT4. The expression of MT1B and MT1H was seldom detected in both OSCC and NNOM. A significant loss of MT1A, MT1X, MT3 and MT4 expression and gain of MT1F expression was observed in OSCC, compared to NNOM. Cases with MT1G down-regulation exhibited the worst prognoses. The up-regulation of MT1X was restricted to non-metastatic cases, whereas up-regulation of MT3 was related to cases with lymph node metastasis. CONCLUSIONS: Metallothionein mRNA expression is altered significantly in oral squamous cell carcinomas. The expression of MT1G, MT1X and MT3 may aid in the prognostic discrimination of OSCC cases.