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1.
Disabil Rehabil Assist Technol ; 18(7): 1011-1025, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-34455895

RESUMEN

PURPOSE: To examine the effect of a communication intervention package on expressive communication and visual attention in individuals with Rett syndrome. MATERIALS AND METHODS: A modified withdrawal (A-B1-A1-B2-A2) single case experimental design with a direct inter-subject replication across three participants was applied. Three women with Rett syndrome participated. The study took place over a six-week period and comprised 32 sessions with each participant. All sessions were video recorded. During the intervention the communication partner used aided language modelling on a gaze-controlled device in combination with using responsive partner strategies. Expressive communication was assessed as synthesised words per minute and unique synthesised words per minute. Visual attention was assessed as rate of focused gazes (1 s or longer) in interaction. RESULTS: An intervention effect was found on the rate of unique words for all participants. The rate of words increased for two participants when the intervention was introduced but no withdrawal effect could be seen. An intervention effect on visual attention could be seen for one participant. The intervention appeared to have social validity as reported by caregivers. CONCLUSION: Aided language modelling (ALM), while using responsive partner strategies and a gaze-controlled device may be used with adult individuals with Rett syndrome to increase their rate of expressive communication. Detailed observational measures revealed individual learning patterns, which may provide clinically valuable insights.Implications for RehabilitationAdults with Rett syndrome may benefit from access to gaze-controlled devices in combination with responsive partner strategies.Responsive partner communication may be effective for some individuals with Rett syndrome to increase their rate of synthesised utterances.Rate of focused gazes may be considered as an outcome measure for individuals with oculomotor difficulties when introducing aided language modelling.


Asunto(s)
Equipos de Comunicación para Personas con Discapacidad , Trastornos de la Comunicación , Síndrome de Rett , Humanos , Adulto , Femenino , Comunicación , Fijación Ocular , Lenguaje , Tecnología
2.
Sci Rep ; 11(1): 19724, 2021 10 05.
Artículo en Inglés | MEDLINE | ID: mdl-34611215

RESUMEN

Body representation distortion (BRD) is a core criterion of Anorexia Nervosa (AN), and is usually assessed subjectively, focusing on body shape. We aimed to develop a new assessment to evaluate body representation independently from socially-mediated body image, on a body part with low emotional salience (hands). In a monocentric open label pilot study, we measured hand representations based on explicit (verbal) and implicit (tactile) instructions. Participants, with eyes closed, had to point targeted locations (knuckles and nails of each finger) based on verbal instructions and tactile stimulations to evaluate body representations respectively. Ratios between hand width and finger length were compared between AN (n = 31) and controls (n = 31) and correlated with current body mass index, AN subtype and disease duration. To control that hand distortion was specific to body representation, we also assessed object representation. Hand representation's width/length ratio was significantly increased in patients with AN, whereas no difference was found in object representation. We found no correlation between hand wideness and clinical traits related to eating disorders. Our results propose that BRD is not limited to body parts with high emotional salience, strengthening the hypothesis that anorexia nervosa is associated with profound unspecific BRD.


Asunto(s)
Anorexia Nerviosa/diagnóstico , Anorexia Nerviosa/psicología , Mano , Movimiento , Adulto , Conducta , Insatisfacción Corporal , Femenino , Mano/anatomía & histología , Mano/fisiología , Humanos , Masculino , Adulto Joven
3.
PLoS One ; 16(9): e0257809, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34591875

RESUMEN

BACKGROUND: Multiple Sclerosis (MS) is associated with impaired gait and a growing number of clinical trials have investigated efficacy of various interventions. Choice of outcome measures is crucial in determining efficiency of interventions. However, it remains unclear whether there is consensus on which outcome measures to use in gait intervention studies in MS. OBJECTIVE: We aimed to identify the commonly selected outcome measures in randomized controlled trials (RCTs) on gait rehabilitation interventions in people with MS. Additional aims were to identify which of the domains of the International Classification of Functioning, Disability and Health (ICF) are the most studied and to characterize how outcome measures are combined and adapted to MS severity. METHODS: Pubmed, Cochrane Central, Embase and Scopus databases were searched for RCT studies on gait interventions in people living with MS according to PRISMA guidelines. RESULTS: In 46 RCTs, we identified 69 different outcome measures. The most used outcome measures were 6-minute walking test and the Timed Up and Go test, used in 37% of the analyzed studies. They were followed by gait spatiotemporal parameters (35%) most often used to inform on gait speed, cadence, and step length. Fatigue was measured in 39% of studies. Participation was assessed in 50% of studies, albeit with a wide variety of scales. Only 39% of studies included measures covering all ICF levels, and Participation measures were rarely combined with gait spatiotemporal parameters (only two studies). CONCLUSIONS: Selection of outcome measures remains heterogenous in RCTs on gait rehabilitation interventions in MS. However, there is a growing consensus on the need for quantitative gait spatiotemporal parameter measures combined with clinical assessments of gait, balance, and mobility in RCTs on gait interventions in MS. Future RCTs should incorporate measures of fatigue and measures from Participation domain of ICF to provide comprehensive evaluation of trial efficacy across all levels of functioning.


Asunto(s)
Análisis de la Marcha/métodos , Esclerosis Múltiple/rehabilitación , Humanos , Esclerosis Múltiple/fisiopatología , Medición de Resultados Informados por el Paciente , Ensayos Clínicos Controlados Aleatorios como Asunto , Análisis Espacio-Temporal , Prueba de Paso
4.
Encephale ; 46(2): 135-145, 2020 Apr.
Artículo en Francés | MEDLINE | ID: mdl-31928741

RESUMEN

OBJECTIVES: Autism spectrum disorders (ASD) are neurodevelopmental disorders characterized by difficulties in communication and social interactions as well as by restricted and repetitive patterns of behavior and interests. They are frequently associated with motor signs. However, literature concerning these motor anomalies remains scarce when it comes to the adult population. Among motor aspects, those concerning manual motor skills warrant a particular attention as their alteration often persists through adulthood with a major impact on functioning and quality of life. The purpose of this article was to systematically review and analyze the literature on sensorimotor aspects and manual motor impairments in ASD. METHODS: We have searched the Medline database using the Pubmed search engine and retaining all articles published since the year 2000 with either their title, abstract or key-words containing the root autis* and any combination of the following terms: hand, manual, finger, dexterity, prehension, grip or grasp. Reference lists where also reviewed. After irrelevant articles were excluded, 33 studies were retained for this work. RESULTS: The basic motor anomaly in autism seems to be a deficit in sensorimotor integration. The central nervous system of individuals with ASD seems unable to efficiently extract sensory information and integrate it correctly into a motor plan and execution. This type of online correction aims to save time on the initial ballistic phase of a movement. Thus, its alteration results in generalized slowness and motor clumsiness that require retroactive feedback corrections. Moreover, difficulties in integrating external sensory information to correctly adapt movement to environmental requirements could explain stereotyped and inflexible behaviors characteristic of autism. The same sensorimotor alterations are found in both gross and fine manual dexterity tasks. They seem to persist significantly though adolescence and into adulthood. To explain these anomalies, the underlying neuroanatomical and neurofunctional substratum might be a hypoconnectivity within cortico-cerebellar tracts. However, several other cerebral structures are also implicated. A delay in the maturational processes of these structures appears to be the common determinant of motor signs found in ASD but also in neurodevelopmental disorders as a whole. CONCLUSIONS: Current works tackling motor aspects in autism comprise several limitations preventing homogenization of their findings. Firstly, characterization of the extremely diverse clinical forms of ASD does not always rely on the same clinical criteria or tools. Furthermore, the motor tasks and the clinical assessments used are not always the same across publications complicating comparison. Moreover, sample sizes are almost always small and only a few studies have addressed motor impairments in adults with ASD. Furthermore, only two studies examine the dynamic longitudinal evolution of motor aspects from childhood to adult age. Finally, despite a recent effort of a consistent number of publications converging towards the hypothesis of a deficit in sensorimotor integration, a common pathophysiological model explaining these deficits in ASD is lacking. A more precise description of these motor signs and further comprehension of the neurological mechanisms underpinning them would allow more tailored managements directed towards subgroups with more homogenous neurodevelopmental profiles.


Asunto(s)
Trastorno del Espectro Autista/psicología , Destreza Motora , Sensación , Humanos , Calidad de Vida
5.
J Phys Condens Matter ; 29(31): 315701, 2017 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-28589923

RESUMEN

Silicon-based tandem heterojunction solar cells utilizing cuprous oxide (Cu2O) as the top absorber layer show promise for high-efficiency conversion and low production cost. In the present study, single phase Cu2O films have been realized on n-type Si substrates by reactive magnetron sputtering at 400 °C. The obtained Cu2O/Si heterostructures have subsequently been heat treated at temperatures in the 400-700 °C range in Ar flow and extensively characterized by x-ray diffraction (XRD) measurements, transmission electron microscopy (TEM) imaging and electrical techniques. The Cu2O/Si heterojunction exhibits a current rectification of ~5 orders of magnitude between forward and reverse bias voltages. High resolution cross-sectional TEM-images show the presence of a ~2 nm thick interfacial SiO2 layer between Cu2O and the Si substrate. Heat treatments below 550 °C result in gradual improvement of crystallinity, indicated by XRD. At and above 550 °C, partial phase transition to cupric oxide (CuO) occurs followed by a complete transition at 700 °C. No increase or decrease of the SiO2 layer is observed after the heat treatment at 550 °C. Finally, a thin Cu-silicide layer (Cu3Si) emerges below the SiO2 layer upon annealing at 550 °C. This silicide layer influences the lateral current and voltage distributions, as evidenced by an increasing effective area of the heterojunction diodes.

6.
Biotech Histochem ; 92(1): 46-58, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28157427

RESUMEN

WNT5A is a secreted, noncanonical WNT signaling protein that has been reported to promote progression of several types of cancer, including oral squamous cell carcinoma. Many WNT5A antibodies are available commercially for immunohistochemistry (IHC) and western blot analysis. Validation of the primary antibodies, however, is often neglected. We characterized antibodies for detecting WNT5A by IHC and western blot analysis. We evaluated one polyclonal and three monoclonal commercially available WNT5A antibodies. After optimization of the IHC assay, all four antibodies showed cytoplasmic WNT5A expression in tissue samples; in contrast, only one antibody detected WNT5A in western blots. A pre-absorption test with recombinant WNT5A showed that AF645 and 3A4 antibodies specifically detected WNT5A in different assays. We suggest that the monoclonal 3A4 antibody is the most appropriate for use with IHC, while the polyclonal AF645 antibody is the best for western blot analysis.


Asunto(s)
Anticuerpos/inmunología , Proteína Wnt-5a/inmunología , Biomarcadores de Tumor , Western Blotting , Línea Celular Tumoral , Regulación Neoplásica de la Expresión Génica , Humanos , Inmunohistoquímica , Reproducibilidad de los Resultados , Coloración y Etiquetado , Proteína Wnt-5a/química
7.
J Cancer Res Clin Oncol ; 141(12): 2229-40, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26253629

RESUMEN

PURPOSE: Adjuvant endocrine therapy (ET) is indicated in patients with steroid hormone receptor (HR)-positive breast cancer. The aim of this study was to evaluate the quality of HR determination and adjuvant endocrine treatment of breast cancer patients in a large cohort of more than 7000 women by analyzing data from a population-based regional cancer registry. METHODS: Data from the Clinical Cancer Registry Regensburg (Bavaria, Germany) were analyzed. Female patients with primary, nonmetastatic invasive breast cancer who were diagnosed between 2000 and 2012 (n = 7421) were included. HR-status was available in 97.4 % (n = 7229) of the patients. This data set (n = 7229) was used for subsequent statistical analyses. RESULTS: Since 2009, almost a complete rate of 99.6 % of analyzed HR-status was achieved. In sum, 85.8 % of the patients (n = 6199) were HR-positive, whereas 14.2 % (n = 1030) were HR-negative. Overall, 85.3 % (n = 5285) of HR-positive patients received ET either alone or in combination with chemotherapy (CHT) and/or trastuzumab. The majority of premenopausal patients received CHT plus ET (716 patients, 52.3 %). In postmenopausal patients, the most frequent systemic therapy was ET alone (2670 patients, 55.3 %). Best overall survival (OS) was found in HER2-/HR-positive patients receiving CHT plus ET plus trastuzumab (7-year OS rate of 97.2 % in premenopausal patients versus 86.9 % in postmenopausal patients). Premenopausal patients had a reduced benefit from additional CHT than postmenopausal patients. Premenopausal patients receiving only ET had a 7-year OS rate of 95.3 % compared to 92.7 % of patients receiving CHT plus ET. In contrast, postmenopausal patients treated with CHT plus ET had a 7-year OS rate of 84.0 % in comparison with those patients receiving only ET with a 7-year OS rate of 81.7 %. CONCLUSIONS: Analysis of HR in patients with early breast cancer achieved a very high quality in recent years. The vast majority of HR-positive patients received ET, and this guideline-adherent use improved OS. Inverse effects of the CHT plus ET combination in premenopausal versus postmenopausal patients and a still existing minority of patients not receiving guideline-adherent treatment should be further investigated in future studies.


Asunto(s)
Inhibidores de la Aromatasa/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Carcinoma Ductal de Mama/tratamiento farmacológico , Carcinoma Lobular/tratamiento farmacológico , Sistema Endocrino/efectos de los fármacos , Receptores de Estrógenos/metabolismo , Receptores de Progesterona/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores de Tumor/metabolismo , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Carcinoma Ductal de Mama/mortalidad , Carcinoma Ductal de Mama/patología , Carcinoma Lobular/mortalidad , Carcinoma Lobular/patología , Estudios de Casos y Controles , Quimioterapia Adyuvante , Femenino , Estudios de Seguimiento , Alemania , Humanos , Técnicas para Inmunoenzimas , Persona de Mediana Edad , Clasificación del Tumor , Invasividad Neoplásica , Estadificación de Neoplasias , Posmenopausia , Premenopausia , Pronóstico , Receptor ErbB-2/metabolismo , Sistema de Registros , Tasa de Supervivencia , Adulto Joven
8.
Biomed Res Int ; 2015: 276182, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25685778

RESUMEN

OBJECTIVE: The NeuroFlexor is a novel method incorporating a biomechanical model for the measurement of neural and nonneural contributions to resistance induced by passive stretch. In this study, we used the NeuroFlexor method to explore components of passive movement resistance in the wrist and finger muscles in subjects with Parkinson's disease (PD). METHODS: A cross-sectional comparison was performed in twenty-five subjects with PD with clinically identified rigidity and 14 controls. Neural (NC), elastic (EC), and viscous (VC) components of the resistance to passive extension of the wrist were calculated using the NeuroFlexor. Measurements were repeated during a contralateral activation maneuver. RESULTS: PD subjects showed greater total resistance (P < 0.001) and NC (P = 0.002) compared to controls. EC and VC did not differ significantly between groups. Contralateral activation maneuver resulted in increased NC in the PD group but this increase was due to increased resting tension. Total resistance and NC correlated with clinical ratings of rigidity and with bradykinesia. CONCLUSIONS: The findings suggest that stretch induced reflex activity, but not nonneural resistance, is the major contributor to rigidity in wrist muscles in PD. The NeuroFlexor is a potentially valuable clinical and research tool for quantification of rigidity.


Asunto(s)
Rigidez Muscular/fisiopatología , Enfermedad de Parkinson/fisiopatología , Muñeca/fisiopatología , Anciano , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Rigidez Muscular/patología , Enfermedad de Parkinson/patología , Muñeca/patología
9.
Disabil Rehabil ; 34(10): 852-8, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22214399

RESUMEN

PURPOSE: To explore the change in kinesiophobia in relation to activity limitation after a multidisciplinary rehabilitation programme in patients with chronic back pain. METHOD: A prospective cohort study was made including 265 patients. Data were collected at baseline, after rehabilitation, and at 6-months follow-up. Outcome measures were the Tampa Scale for kinesiophobia (TSK) and the disability rating index (DRI). The smallest detectable change (SDC) in TSK was set to 8 scores. Relationships between kinesiophobia and activity limitation/physical ability were explored with regard to subgroups with high, medium and low baseline TSK scores, and for those patients who did or did not reach the SDC in TSK. RESULTS: Improvements in TSK showed high effect sizes in the groups with high and medium baseline TSK scores. Improvements in DRI showed medium effect sizes in all three TSK subgroups. One third of the patients reached the SDC in TSK, and this group also improved significantly more in DRI. The correlation between change in TSK and change in DRI was low. Half of the patients with high TSK score at baseline remained having high DRI at follow-up. CONCLUSIONS: Improvement in physical ability was not related to the initial degree of kinesiophobia but to the SDC in TSK. To prevent patients with high kinesiophobia from preserving high activity limitations, it might be useful to include targeted treatment of kinesiophobia.


Asunto(s)
Actividades Cotidianas , Dolor de Espalda/psicología , Miedo/psicología , Movimiento , Trastornos Fóbicos/psicología , Actividades Cotidianas/psicología , Adulto , Dolor de Espalda/diagnóstico , Dolor de Espalda/rehabilitación , Enfermedad Crónica , Evaluación de la Discapacidad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Dimensión del Dolor , Trastornos Fóbicos/etiología , Estudios Prospectivos , Ausencia por Enfermedad/estadística & datos numéricos , Encuestas y Cuestionarios
10.
J Neuroradiol ; 39(4): 236-42, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-22033418

RESUMEN

OBJECTIVES: Spinal canal stenosis is often measured on anatomical magnetic resonance imaging (MRI) to estimate the degree of spinal cord compression. This study examined whether two quantitative measures of spinal canal stenosis taken from anatomical MRI are related to spinal cord white-matter integrity in patients with cervical spondylosis measured by diffusion tensor imaging (DTI). PATIENTS AND METHODS: DTI and T2-weighted MRI of the cervical spinal cord were performed in 15 patients with cervical spondylosis and ten healthy control subjects of similar age. Severity of stenosis was calculated using Pavlov's ratio and the space-available-for-cord (SAC) technique. RESULTS: Patients had significantly lower Pavlov's ratios and SAC (C2-C3, C4-C5 and C6-C7), lower fractional anisotropy (FA; C2-C3 and C4-C5) and higher radial diffusivity (C2-C3, C4-C5 and C6-C7) than the controls. In patients, only Pavlov's ratio correlated with mean FA (R=0.66, P=0.008). Variations in Pavlov's ratio and FA also showed a similar pattern across cervical levels. CONCLUSION: Pavlov's ratio is a better predictor of spinal cord integrity than the SAC and, therefore, may be more relevant clinically for the evaluation of stenosis in patients with cervical spondylosis.


Asunto(s)
Imagen por Resonancia Magnética/métodos , Estenosis Espinal/patología , Espondilosis/patología , Anciano , Estudios de Casos y Controles , Imagen de Difusión Tensora , Femenino , Humanos , Interpretación de Imagen Asistida por Computador , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Índice de Severidad de la Enfermedad
11.
J Physiol ; 589(Pt 14): 3545-58, 2011 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-21606115

RESUMEN

Motor skill acquisition in the lower limb may induce modifications of spinal network excitability. We hypothesized that short-term motor adaptation in precision grip tasks would also induce modifications of cervical spinal network excitability. In a first series of experiments, we studied the impact of two different precision grip force control tasks (a visuomotor force-tracking task and a control force task without visual feedback) on cervical spinal network excitability in healthy subjects. We separately tested the efficacy of two key components of the spinal circuitry: (i) presynaptic inhibition on flexor carpi radialis (FCR) Ia terminals, and (ii) disynaptic inhibition directed from extensor carpi radialis (ECR) to FCR. We found that disynaptic inhibition decreased temporarily after both force control tasks, independently of the presence of visual feedback. In contrast, the amount of presynaptic inhibition on FCR Ia terminals decreased only after the visuomotor force tracking task. This temporary decrease was correlated with improved tracking accuracy during the task (i.e. short-term motor adaptation). A second series of experiments confirmed these results and showed that the visuomotor force-tracking task resulted also in an increase of the Hmax/Mmax ratio and the slope of the ascending part of the H-reflex recruitment curve. In order to address the role of presynaptic inhibition in the motor adaptation process, we conducted a third series of experiments during which presynaptic inhibition was recorded before and after two consecutive sessions of visuomotor force tracking. The results showed that (i) improved tracking accuracy occurred during both sessions, and (ii) presynaptic inhibition decreased only after the first session of visuomotor force tracking. Taken together, these results suggest thus that the nature of the motor task performed has a specific impact on the excitability of these cervical spinal circuits. These findings also suggest that early motor adaptation is associated with a modulation of presynaptic Ia inhibition in the upper limb.


Asunto(s)
Fuerza de la Mano/fisiología , Corteza Motora/fisiología , Neuronas Motoras/fisiología , Destreza Motora/fisiología , Red Nerviosa/fisiología , Médula Espinal/fisiología , Adulto , Vías Aferentes/fisiología , Estimulación Eléctrica/métodos , Potenciales Evocados Motores/fisiología , Retroalimentación Sensorial/fisiología , Reflejo H/fisiología , Humanos , Persona de Mediana Edad , Contracción Muscular/fisiología , Músculo Esquelético/fisiología , Inhibición Neural/fisiología , Terminales Presinápticos/fisiología , Reclutamiento Neurofisiológico/fisiología , Transmisión Sináptica/fisiología , Muñeca/fisiología , Articulación de la Muñeca/fisiología , Adulto Joven
12.
Clin Oral Implants Res ; 21(4): 424-9, 2010 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-20443795

RESUMEN

OBJECTIVES: To investigate the capacity of Cerament, an injectable bone substitute, to guide bone generation from a cortical surface. MATERIALS AND METHOD: Cerament was applied to the cortical surface of rat tibiae and investigated histologically after 3, 6 and 12 weeks, using a procedure similar to that performed in sham-operated rats. RESULTS: In both groups, the thickness of the bone cortex increased significantly from 473 + or - 58 microm (mean + or - SD) at day 0 to 1193 + or - 255 microm (Cerament) and 942 + or - 323 microm (sham) after 3 weeks. In the Cerament group, the new bone thickness remained constant (1258 + or - 288 microm) until the end of the experiment at 12 weeks, while the sham group demonstrated a return to initial cortical thickness (591 + or - 73 microm) at 12 weeks. The newly formed bone in the Cerament group was highly trabecular after 3 weeks but attained a normal trabecular structure of the cortex after 12 weeks. CONCLUSION: Cerament may guide bone generation from an intact cortical bone surface. Although bone remodeling speed may differ between rats and humans, our study indicates that Cerament may become a useful alternative to autologous bone, both to fill defects and to increase bone volume by cortical augmentation.


Asunto(s)
Sustitutos de Huesos , Animales , Regeneración Ósea , Masculino , Ratas , Ratas Sprague-Dawley , Tibia/cirugía
13.
J Clin Periodontol ; 36(12): 1025-34, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19930092

RESUMEN

AIM: To evaluate the effectiveness of an individually tailored oral health educational programme for oral hygiene self-care in patients with chronic periodontitis compared with the standard treatment. MATERIAL AND METHOD: A randomized, evaluator-blinded, controlled trial with two different active treatments were used with 113 subjects (60 females and 53 males) randomly allocated to an experimental or a control group. The individually tailored oral health educational programme was based on cognitive behavioural principles and the individual tailoring for each participant was based on participants' thoughts, intermediate, and long-term goals, and oral health status. The effect of the programmes on gingivitis [gingival index (GI)], oral hygiene [plaque indices (PlI) and self-report], and participants' global rating of treatment was evaluated 3 and 12 months after oral health education and non-surgical treatment. RESULTS: Between baseline and the 12-month follow-up, the experimental group improved both GI and PlI more than the control group. The mean gain-score difference was 0.27 for global GI [99.2% confidence interval (CI): 0.16-0.39, p<0.001] and 0.40 for proximal GI (99.2% CI: 0.27-0.53, p<0.001). The mean gain-score difference was 0.16 for global PlI (99.2% CI: 0.03-0.30, p=0.001), and 0.26 for proximal PlI (99.2% CI: 0.10-0.43, p<0.001). The subjects in the experimental group reported a higher frequency of daily inter-dental cleaning and were more certain that they could maintain the attained level of behaviour change. CONCLUSION: The individually tailored oral health educational programme was efficacious in improving long-term adherence to oral hygiene in periodontal treatment. The largest difference was for interproximal surfaces.


Asunto(s)
Periodontitis Crónica/terapia , Placa Dental/prevención & control , Gingivitis/prevención & control , Educación en Salud Dental , Higiene Bucal/estadística & datos numéricos , Terapia Cognitivo-Conductual , Raspado Dental , Femenino , Estudios de Seguimiento , Conductas Relacionadas con la Salud , Humanos , Masculino , Persona de Mediana Edad , Higiene Bucal/educación , Higiene Bucal/psicología , Índice de Higiene Oral , Índice Periodontal , Método Simple Ciego
14.
Int J Dent Hyg ; 7(3): 166-75, 2009 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-19659712

RESUMEN

OBJECTIVES: To describe and evaluate an individually tailored treatment programme based on a behavioural medicine approach to oral hygiene self-care for patients with chronic periodontitis. METHODS: Two experimental single-case studies with multiple-baseline design across different self-administered oral hygiene behaviours were conducted. Cognitive Behavioural techniques were used to organize the strategies for the intervention and the approach to counselling was inspired by and structured in accordance with Motivational Interviewing. The central features in the programme were the individual analysis of knowledge and oral hygiene habits, individually set goals for oral hygiene behaviour, practice of manual dexterity for oral hygiene aids, continuous self-monitoring of the behaviour and prevention of relapse. RESULTS: Both participants reached the predecided criteria for clinical significance in reducing plaque and bleeding on probing. Reductions of periodontal probing depth were achieved as well. The positive results remained stable throughout the 2-year study period. CONCLUSION: The successful application of this educational model suggests that it could be used as a method for tailoring interventions targeted to oral hygiene for patients with periodontal conditions. The programme will now be tested in a larger randomized controlled trial.


Asunto(s)
Periodontitis Crónica/prevención & control , Higiene Bucal , Planificación de Atención al Paciente , Educación del Paciente como Asunto , Actitud Frente a la Salud , Terapia Cognitivo-Conductual , Consejo , Dispositivos para el Autocuidado Bucal , Placa Dental/prevención & control , Femenino , Estudios de Seguimiento , Hemorragia Gingival/prevención & control , Objetivos , Conductas Relacionadas con la Salud , Educación en Salud Dental , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Motivación , Destreza Motora/fisiología , Bolsa Periodontal/prevención & control , Autocuidado , Autoevaluación (Psicología) , Cepillado Dental
15.
J Med Eng Technol ; 33(1): 18-24, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19116850

RESUMEN

Resonance sensor systems have been shown to be able to distinguish between cancerous and normal prostate tissue, in vitro. The aim of this study was to improve the accuracy of the tissue determination, to simplify the tissue classification process with computerized morphometrical analysis, to decrease the risk of human errors, and to reduce the processing time. In this article we present our newly developed computerized classification method based on image analysis. In relation to earlier resonance sensor studies we increased the number of normal prostate tissue classes into stroma, epithelial tissue, lumen and stones. The linearity between the impression depth and tissue classes was calculated using multiple linear regression (R(2) = 0.68, n = 109, p < 0.001) and partial least squares (R(2) = 0.55, n = 109, p < 0.001). Thus it can be concluded that there existed a linear relationship between the impression depth and the tissue classes. The new image analysis method was easy to handle and decreased the classification time by 80%.


Asunto(s)
Procesamiento de Imagen Asistido por Computador/métodos , Próstata/patología , Neoplasias de la Próstata/diagnóstico , Algoritmos , Diagnóstico por Imagen/métodos , Diseño de Equipo , Humanos , Procesamiento de Imagen Asistido por Computador/instrumentación , Análisis de los Mínimos Cuadrados , Modelos Lineales , Masculino , Análisis Multivariante , Reproducibilidad de los Resultados , Procesamiento de Señales Asistido por Computador
16.
Chemosphere ; 73(1 Suppl): S193-200, 2008 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-18440589

RESUMEN

The diastereomeric composition of hexabromocyclododecane (HBCD) in eggs of peregrine falcon (Falco peregrinus), white-tailed sea eagle (Haliaeetus albicilla), guillemot (Uria aalge) and common tern (Sterna hirundo) as well as the guillemots' main prey, herring (Clupea harengus) was determined by reversed-phase chromatography with triple-stage quadrupole mass spectrometric detection (LC-MS-MS). alpha-HBCD was the predominant diastereomer in all bird species, while in herring, gamma-HBCD made a substantial contribution. Two, as yet unidentified diastereomers, were detected in common tern egg. The alpha-, beta- and gamma-HBCD (+) and (-) enantiomers were separated using a chiral stationary phase. The enantiomer fractions for alpha-HBCD differed substantially between different bird species as well as between guillemot and its prey, herring. Total HBCD levels determined by LC-MS-MS were comparable to those previously obtained by GC-MS.


Asunto(s)
Aves/metabolismo , Hidrocarburos Bromados/química , Hidrocarburos Bromados/metabolismo , Óvulo/metabolismo , Conducta Predatoria , Animales , Aves/anatomía & histología , Cromatografía Liquida , Conducta Alimentaria , Sensibilidad y Especificidad , Estereoisomerismo , Espectrometría de Masas en Tándem
17.
J Affect Disord ; 108(3): 291-6, 2008 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-18053580

RESUMEN

BACKGROUND: The most common way to provide bright light therapy to Swedish patients with Seasonal Affective Disorder (SAD), is treatment in a light therapy room. Since few studies have evaluated treatment provided in this setting and few have evaluated the effect of bright light in sub-clinical SAD (S-SAD), such a study including a one-month follow-up was designed. METHODS: Fifty adults recruited from a previous prevalence study and clinically assessed as having SAD or S-SAD, were randomised to treatment in a light room or to a three-week waiting-list control group. The Hamilton Depression Rating Scale-Seasonal Affective Disorders Self-rating 29-items Version (SIGH-SAD/SR) was used to measure depressive mood at baseline, directly following treatment and at the one-month follow-up. RESULTS: ANCOVA with adjustment for baseline depression score, showed a significant main effect for the light room therapy group (p<0.001). Fifty-four percent (n=13/24) improved > or = 50% while no such improvement was seen in the control condition (n=0/24). After merging the two groups, repeated measures ANOVA confirmed the experimental analysis (p<0.001). At the one-month follow-up, 83.0% (n=39/47) had improved > or = 50% and 63.8% (n=30/47) had normal depression scores, i.e. < or = 8. CONCLUSIONS: Light room therapy was effective in reducing depressive symptoms in subjects with winter depressive mood. Results were maintained over a period of one month.


Asunto(s)
Arquitectura , Ambiente , Fototerapia/métodos , Trastorno Afectivo Estacional/psicología , Trastorno Afectivo Estacional/terapia , Adulto , Anciano , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Trastorno Afectivo Estacional/diagnóstico , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios
18.
G Ital Med Lav Ergon ; 29(1 Suppl A): A5-11, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17650736

RESUMEN

Different types of integrated management programmes have lately been introduced in the treatment of Whiplash Associated Disorders (WAD). In this study regular primary care physiotherapy and physiotherapy management with integrated components of cognitive-behavioural origin was compared in an experimental group study. The predictive value of self-efficacy was also addressed. In all thirty-three patients with chronic WAD were included in the trial. Results revealed no significant differences between groups in self-ratings of disability or pain intensity. However, among the self-reported benefits of treatment, patients in the experimental group reported significantly less pain than did the comparison group. At three months follow-up the experimental group also reported better performance of daily activities. Between group differences in the coping repertoire were found at pre-, post-and three-month follow-up. Generally, patients with high self-efficacy reported less use of 'maladaptive' and passive coping style than less self-efficient subjects at all times. In conclusion cognitive behavioural components can be useful in physiotherapy treatment for patients with chronic WAD, but their contributions are not yet fully understood. Self-efficacy is related to patients' use of different coping styles. Positive long-term outcomes in WAD-patients could therefore be improved by boosting self-efficacy and by teaching patients to use active, adaptive coping strategies.


Asunto(s)
Terapia Cognitivo-Conductual , Modalidades de Fisioterapia , Lesiones por Latigazo Cervical/complicaciones , Lesiones por Latigazo Cervical/terapia , Adulto , Enfermedad Crónica , Terapia Combinada , Femenino , Humanos , Masculino , Autoeficacia
19.
Med Lav ; 97(2): 207-14, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-17017351

RESUMEN

BACKGROUND AND OBJECTIVES: In many industrialised countries the number of workers with low health is expected to increase in the nursing profession. This will have implications for occupational health work in health care. The European NEXT-Study (www. next-study. net, funded by EU) investigates working conditions of nurses in ten European countries and provides the opportunity to evaluate the role of health with respect to age and the consideration of leaving nursing. METHODS: 26,263 female registered nurses from Belgium, Germany, Finland, France, England, Italy, Netherlands, Poland and Slovakia were eligible for analysis. RESULTS: In most countries, older nurses considered leaving the profession more frequently than younger nurses. 'Health' was--next to 'professional opportunities' and 'work organisational factors'--strongly associated with the consideration of leaving nursing. However, more than half of all nurses with low health wanted to remain in the profession. This group reported rather positive psychosocial working conditions--but also the highest fear for unemployment. CONCLUSIONS: The findings indicate that 'the nurse with low health' is reality in many health care settings. Both positive supporting working conditions but also lack of occupational alternatives and fear of unemployment may contribute to this. Current economic, political and demographic trends implicate that the number of active nurses with low health will increase. Occupational health surveillance will be challenged by this. But NEXT findings implicate that prevention also will have to regard work organisational factors if the aim is to sustain nurses' health and to enable nurses to remain healthy in their profession until retirement age.


Asunto(s)
Estado de Salud , Satisfacción en el Trabajo , Enfermeras y Enfermeros/estadística & datos numéricos , Salud Laboral , Adolescente , Adulto , Factores de Edad , Estudios de Cohortes , Recolección de Datos , Europa (Continente) , Miedo , Femenino , Humanos , Estilo de Vida , Estudios Longitudinales , Persona de Mediana Edad , Enfermeras y Enfermeros/psicología , Enfermeras y Enfermeros/provisión & distribución , Reorganización del Personal , Jubilación/psicología , Desempleo/psicología , Carga de Trabajo/psicología , Carga de Trabajo/estadística & datos numéricos
20.
Int J Dent Hyg ; 4(2): 77-83, 2006 May.
Artículo en Inglés | MEDLINE | ID: mdl-16637909

RESUMEN

UNLABELLED: The present study was a randomized control trial to test an intervention emanating from the Client Self-care Commitment Model (CSCCM), to encourage patients to increase their responsibility for their oral self-care. MATERIALS AND METHODS: A total of 75 individuals were re-examined 1-2 years after their initial therapy at the Department of Periodontology, Uppsala County Council, Sweden. Patients who exhibited insufficient compliance, 37 individuals, were included in a randomized single-blind control trial to test an intervention based on the CSCCM. Patients were examined at baseline and 3 months after hygiene treatment. RESULTS: The results demonstrated that patients in the intervention (IV) group increased their interdental cleaning and reduced their plaque index significantly compared with the control group. The former also reduced the number of periodontal pockets >4 mm significantly from baseline until after the hygiene treatment. The majority of the individuals in the IV group reported that the written commitment had influenced on their oral self-care habits in a positive direction. CONCLUSIONS: The CSCCM enhanced the client participation in the treatment process and improved the compliance and oral self-care behaviours. In addition, the model contributed to a reduction in periodontal pockets.


Asunto(s)
Placa Dental/prevención & control , Higiene Bucal/estadística & datos numéricos , Participación del Paciente/psicología , Bolsa Periodontal/prevención & control , Autocuidado/psicología , Adulto , Anciano , Anciano de 80 o más Años , Higienistas Dentales , Índice de Placa Dental , Femenino , Educación en Salud Dental , Humanos , Masculino , Persona de Mediana Edad , Modelos Psicológicos , Motivación , Higiene Bucal/psicología , Cooperación del Paciente/psicología , Índice Periodontal , Método Simple Ciego
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