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1.
J Healthc Qual Res ; 39(4): 205-213, 2024.
Artigo em Espanhol | MEDLINE | ID: mdl-38614935

RESUMO

OBJECTIVE: To assess the cost-effectiveness of Fracture Liaison Service (FLS) compared to the standard of care for secondary prevention of fragility fractures form the perspective of the Catalan Health Service. METHODS: Cost-utility assessment through a Markov model that simulated disease progression of a patients' cohort candidates to initiate antiosteoporotic treatment after a fragility fracture. A time horizon of 10 years and a 6-month duration per cycle was established. Clinical, economics and quality of life parameters were obtained from the literature and derived from four Catalan FLS. The Catalan Health Service perspective was adopted, considering direct health costs expressed in 2022 euros. A 3% discount rate was applied on costs and outcomes. Uncertainty was assessed through multiple sensitivity analyses. RESULTS: Compared to the standard of care, FLS would promote antiosteoporotic initiation and persistence, reducing the incidence and mortality associated with subsequent fragility fractures. This incremental clinical benefit was estimated at 0.055 years and 0.112 quality-adjusted life years (QALYs) per patient. A higher cost (€1,073.79 per patient) was estimated, resulting into an incremental cost-utility ratio of €9,602.72 per QALYs gained. The sensitivity analyses performed were consistent, corroborating the robustness and conservative approach of the base-case. CONCLUSIONS: The introduction of FLS for the secondary prevention of FF would represent a cost-effective strategy from the Catalan Health Service perspective.


Assuntos
Análise Custo-Benefício , Cadeias de Markov , Fraturas por Osteoporose , Anos de Vida Ajustados por Qualidade de Vida , Prevenção Secundária , Humanos , Espanha , Prevenção Secundária/economia , Fraturas por Osteoporose/prevenção & controle , Fraturas por Osteoporose/economia , Feminino , Idoso , Conservadores da Densidade Óssea/uso terapêutico , Conservadores da Densidade Óssea/economia , Masculino , Análise de Custo-Efetividade
2.
Rev Esp Quimioter ; 36(5): 519-525, 2023 Oct.
Artigo em Espanhol | MEDLINE | ID: mdl-37265448

RESUMO

Tuberculous otitis media (TOM) is a rare affectation in our environment that represents a challenge in its diagnosis due to the non-specific symptoms that it usually presents. This paper presents our experience in the diagnosis of a case of TOM in a 66-year-old woman with hearing loss and chronic otorrhea of more than 6 months of evolution that did not respond to conventional treatments. In addition, a review of the cases published in the last 20 years (2000-2022) in countries of the European Union (EU) is carried out. The most common symptoms were otorrhea (n=43; 100%), hearing loss (n=37; 86.05%), eardrum perforation (n=19; 44.18%), facial paralysis (n=12, 27,91%) and ear pain (n=13; 30,23%). The most used sample for diagnosis was the biopsy obtained by mastoidectomy (n=34; 79.06%). All patients were given antituberculous therapy for a mean duration of 8.11 months (range, 6-12 months). The most frequent aftereffect was hearing loss (n=28; 65.12%). TOM should be included in the differential diagnosis of chronic suppurative otitis, since early diagnosis and treatment reduce the probability of suffering irreversible sequelae.


Assuntos
Paralisia Facial , Otite Média , Tuberculose , Feminino , Humanos , Idoso , Tuberculose/diagnóstico , Otite Média/tratamento farmacológico , Paralisia Facial/etiologia
3.
Food Res Int ; 165: 112495, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36869505

RESUMO

Children are thought to prefer homogeneous and simple textures that are easy to manipulate in the mouth. Although scientific research has been done on children's acceptance for food textures, there is a lack of knowledge regarding the emotional response elicited by textures in this group of population. Physiological and behavioural methods could be an appropriate approach to measure food-evoked emotions in children since they require a low cognitive effort and allow a real-time measure. In this regard, a study that combined the measure of skin conductance response (SCR) and facial expressions was conducted: (i) to provide a first insight into food-evoked emotions induced by liquid food products that only vary in texture, (ii) to capture the emotional response evoked by the observation, olfaction, manipulation, and consumption of the products, and (iii) to overcome methodological drawbacks that are frequently associated to these methods. To achieve these goals, 50 children (5-12 yrs old) evaluated three liquids designed to only vary in texture (from slightly thick to extremely thick), following four sensory tasks: observation, olfaction, manipulation, and consumption. After each sample was tasted, children rated liking with a 7-pt hedonic scale. Facial expressions and SCR were monitored during the test, and they were analysed as action units (AUs) and basic emotions as well as changes in SCR. Results showed that the extremely thick liquid was less liked by the children and induced a more negative emotional response, whereas the slightly thick liquid was more liked and evoked a more positive emotional response. The combined method used in this study showed good discrimination ability among the three samples tested, obtaining the best discrimination during the manipulation task. The codification of the AUs located in the upper side of the face allowed us to measure the emotional response evoked by the consumption of the liquids, without the artifacts caused by the oral processing of the products. This study provides a child-friendly approach to be used during the sensory evaluation of food products in a broad range of sensory tasks minimising the methodological drawbacks.


Assuntos
Fenômenos Fisiológicos , Olfato , Humanos , Emoções , Alimentos , Conhecimento
4.
Artigo em Inglês | MEDLINE | ID: mdl-36927617

RESUMO

AIMS: To determine whether the use of single or combined mechanical and virtual articulators, as well as facebows, jaw motion trackers, face scanners, and related devices, actually improve the efficacy of the prosthesis obtained in terms of lifespan and patient-related outcomes. To coin the terms Analogic and Digital Virtual Patients (AVP and DVP) as an attempt to analyze, clarify and synthesize terminology and workflows related to previously so-called devices. MATERIALS AND METHODS: A scoping review was accomplished involving different databases. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA-ScR) checklist and JBI guidance were followed to extract data regarding the Population, Context and Concept established. RESULTS: Available literature on the efficacy of using devices and techniques related to both AVP and DVP workflows showed arguable study designs, great heterogeneity, and questionable quality. CONCLUSIONS: The terms AVP and DVP have been coined as a first step to clarify and simplify concepts and workflows related to the use of both mechanical and virtual articulators, as well as facebows, or facial and intraoral scanners, among others. This scoping review cannot claim that an AVP approach leads to more effective and efficient prosthetic restorations.

5.
Osteoporos Int ; 32(7): 1333-1342, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33459805

RESUMO

Prevalence and risk factors of vertebral fractures in postmenopausal RA women were assessed in 323 patients and compared with 660 age-matched women. Of patients, 24.15% had at least one vertebral fracture vs.16.06% of controls. Age, glucocorticoids and falls were the main fracture risks. Vertebral fractures were associated with disease severity. INTRODUCTION: There is little quality data on the updated prevalence of fractures in rheumatoid arthritis (RA) that may have changed due to advances in the therapeutic strategy in recent years. This study was aimed at analysing the prevalence and risk factors of vertebral fractures in postmenopausal women with RA and comparing it with that of the general population. METHODS: We included 323 postmenopausal women diagnosed with RA from 19 Spanish Rheumatology Departments, randomly selected and recruited in 2018. Lateral radiographs of the thoracic and lumbar spine were obtained to evaluate morphometric vertebral fractures and the spinal deformity index. We analysed subject characteristics, factors related to RA, and fracture risk factors. The control group consisted of 660 age-matched Spanish postmenopausal women from the population-based Camargo cohort. RESULTS: Seventy-eight (24.15%) RA patients had at least one vertebral fracture. RA patients had increased fracture risk compared with controls (106 of 660, 16.06%) (p = 0.02). Logistic regression analysis showed that age (OR 2.17; 95% CI 1.27-4.00), glucocorticoids (OR 3.83; 95% CI 1.32-14.09) and falls (OR 3.57; 95% CI 1.91-6.86) were the independent predictors of vertebral fractures in RA patients. The subgroup with vertebral fractures had higher disease activity (DAS28: 3.15 vs. 2.78, p = 0.038) and disability (HAQ: 0.96 vs. 0.63, p = 0.049), as compared with those without vertebral fractures. CONCLUSION: The risk of vertebral fracture in RA is still high in recent years, when compared with the general population. The key determinants of fracture risk are age, glucocorticoids and falls. Patients with vertebral fractures have a more severe RA.


Assuntos
Artrite Reumatoide , Osteoporose Pós-Menopausa , Osteoporose , Fraturas da Coluna Vertebral , Artrite Reumatoide/complicações , Artrite Reumatoide/epidemiologia , Densidade Óssea , Estudos de Casos e Controles , Feminino , Humanos , Vértebras Lombares/lesões , Fatores de Risco , Fraturas da Coluna Vertebral/epidemiologia , Fraturas da Coluna Vertebral/etiologia
6.
Arch Osteoporos ; 15(1): 63, 2020 04 25.
Artigo em Inglês | MEDLINE | ID: mdl-32335759

RESUMO

The coordination of Fracture Liaison Services (FLS) with Primary Care (PC) is necessary for the continuity of care of patients with fragility fractures. This study proposes a Best Practice Framework (BPF) and performance indicators for the implementation and follow-up of FLS-PC coordination in clinical practice in Spain. PURPOSE: To develop a BPF for the coordination of FLS with PC in Spain and to improve the continuity of care for patients with fragility fractures. METHODS: A Steering Committee selected experts from seven Spanish FLS and related PC doctors and nurses to participate in a best practice workshop. Selection criteria were an active FLS with an identified champion and prior contact with PC centres linked to the hospital. The main aim of the workshop was to review current FLS practices in Spain and their integration with PC. A BPF document with processes, tools, roles, and metrics was then generated. RESULTS: Spanish FLS consists of a multidisciplinary team of physicians/nurses but with low participation of other professionals and PC staff. Evaluation and treatment strategies are widely variable. Four desired standards were agreed upon: (1) Effective channels for FLS-PC communication; (2) minimum contents of an FLS clinical report and its delivery to PC; (3) adherence monitoring 3 months after FLS baseline visit; and (4) follow-up by PC. Proposed key performance indicators are (a) number of FLS-PC communications, including consensus protocols; (b) confirmation FLS report received by PC; (c) medical/nursing PC appointment after FLS report received; and (d) number of training sessions in PC. CONCLUSIONS: The BPF provides a comprehensive approach for FLS-PC coordination in Spain, to promote the continuity of care in patients with fragility fractures and improve secondary prevention. The implementation of BPF recommendations and performance indicator tracking will benchmark best FLS practices in the future.


Assuntos
Benchmarking , Continuidade da Assistência ao Paciente/normas , Fraturas por Osteoporose/terapia , Guias de Prática Clínica como Assunto , Atenção Primária à Saúde/normas , Feminino , Implementação de Plano de Saúde , Humanos , Masculino , Espanha
7.
J Dairy Sci ; 103(4): 3760-3773, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32037166

RESUMO

Food production including dairy has been associated with environmental impacts and resource use that has been steadily improving when adjusted per unit of product. The objective of this study was to conduct a cradle-to-farm gate environmental impact analysis and resource inventory of the California dairy production system to estimate the change in greenhouse gas emissions and water and land use over the 50-yr period between 1964 and 2014. Using a life cycle assessment according to international standards and the Food and Agriculture Organization of the United Nations guidelines, we analyzed contributions from dairy production in California to global environmental change. Production of 1 kg of energy- and protein-corrected milk (ECM) in California emitted 1.12 to 1.16 kg of CO2 equivalents (CO2e) in 2014 compared with 2.11 kg of CO2e in 1964, a reduction of 45.0 to 46.9% over the last 50 yr, depending on the model used. Greater reductions in enteric methane intensity (i.e., methane production per kilogram of ECM) were observed (reduction of 54.1 to 55.7%) compared with manure GHG (reduction of 8.73 to 11.9%) in 2014 compared with 1964. This was mainly because manure management in the state relies on lagoons for storage, which has a greater methane conversion factor than solid manure storage. Water use intensity was reduced by 88.1 to 89.9%, with water reductions of 88.7 to 90.5% in crop production, 55.3 to 59.2% in housing and milking, and 52.4 to 54% in free water intake. Improved crop genetics and management have contributed to large efficiencies in water utilization. Land requirements for crop production were reduced by 89.4 to 89.7% in 2014 compared with 1964. This was mainly due to dramatic increases in crop yields in the last 50 yr. The increases in milk production per cow through genetic improvements and better nutrition and animal care have contributed to reductions in greenhouse gas emissions and land and water usage when calculated per unit of production (intensity) basis.


Assuntos
Indústria de Laticínios/tendências , Meio Ambiente , Gases de Efeito Estufa/metabolismo , Leite/metabolismo , Água/metabolismo , Ração Animal/classificação , Ração Animal/normas , Criação de Animais Domésticos/normas , Criação de Animais Domésticos/tendências , Animais , California , Bovinos , Produção Agrícola/tendências , Produtos Agrícolas/crescimento & desenvolvimento , Indústria de Laticínios/normas , Fazendas , Feminino , Aquecimento Global , Esterco , Metano/biossíntese , Metano/metabolismo , Leite/normas , Gravidez , Gerenciamento de Resíduos/normas
8.
Plant Biol (Stuttg) ; 21(1): 101-109, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30230155

RESUMO

Oceanic islands are dynamic settings that often promote within-island patterns of strong population differentiation. Species with high colonisation abilities, however, are less likely to be affected by genetic barriers, but island size may impact on species genetic structure regardless of dispersal ability. The aim of the present study was to identify the patterns and factors responsible for the structure of genetic diversity at the island scale in Phoenix canariensis, a palm species with high dispersal potential. To this end, we conducted extensive population sampling on the three Canary Islands where the species is more abundant and assessed patterns of genetic variation at eight microsatellite loci, considering different within-island scales. Our analyses revealed significant genetic structure on each of the three islands analysed, but the patterns and level of structure differed greatly among islands. Thus, genetic differentiation fitted an isolation-by-distance pattern on islands with high population densities (La Gomera and Gran Canaria), but such a pattern was not found on Tenerife due to strong isolation between colonised areas. In addition, we found a positive correlation between population geographic isolation and fine-scale genetic structure. This study highlights that island size is not necessarily a factor causing strong population differentiation on large islands, whereas high colonisation ability does not always promote genetic connectivity among neighbouring populations. The spatial distribution of populations (i.e. landscape occupancy) can thus be a more important driver of plant genetic structure than other island, or species' life-history attributes.


Assuntos
Phoeniceae/genética , Dispersão de Sementes/fisiologia , Árvores/genética , Variação Genética , Genética Populacional , Espanha , Especificidade da Espécie
9.
Actas urol. esp ; 41(8): 491-496, oct. 2017. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-167161

RESUMO

Objetivos: Determinar el porcentaje de pérdida de masa ósea y el riesgo de fractura inducido por la terapia de deprivación androgénica en pacientes con cáncer de próstata. Material y métodos: Estudio prospectivo en 2 fases. En la primera se recogieron variables demográficas, FRAX(R), densidad mineral ósea y fracturas clínicas antes de iniciar la terapia y hasta un año después de finalizada. En la segunda se realizó una entrevista telefónica una media de 8,5 años después del inicio del estudio para evaluar nuevas fracturas. Resultados: Se incluyeron 150 pacientes con una edad media de 67 años y duración media de la terapia de 24 meses. Antes del inicio del tratamiento 62 pacientes (41%) presentaban osteoporosis o baja masa ósea en la densitometría. Después del primer año de tratamiento la densidad mineral ósea descendió una media de 3,7% y 2,1% en la columna lumbar y el cuello femoral, respectivamente. Al final del segundo y tercer año el porcentaje de pérdida fue menor. Durante la primera fase del estudio 4 pacientes (2,7%) sufrieron una fractura. En la entrevista telefónica a 80 pacientes (53%) solo uno había sufrido una fractura. Conclusiones: En los pacientes con cáncer de próstata y terapia de deprivación androgénica la mayor pérdida ósea se produce durante el primer año. Cuando el tratamiento no supera los 2 años el riesgo absoluto de fractura es bajo, y la fractura clínica infrecuente a corto y a largo plazo


Objectives: To determine the rate of bone mass loss and the risk of fracture induced by androgen deprivation therapy in patients with prostate cancer. Material and methods: Prospective study in 2 phases. In the first phase, demographic variables, FRAX(R), bone mineral density and clinical fractures were collected, before starting the therapy and up to 1 year after ending the therapy. In the second phase, we conducted a telephone interview a mean of 8.5 years after the start of the study to assess new fractures. Results: We included 150 patients with a mean age of 67 years and a mean therapy duration of 24 months. Before starting the treatment, 62 patients (41%) showed osteoporosis or low bone mass in the densitometry. After the first year of treatment, the bone mineral density decreased a mean of 3.7% and 2.1% in the lumbar spine and femoral neck, respectively. At the end of the second and third year, the loss rate was lower. During the first phase of the study, 4 patients (2.7%) experienced a fracture. In the telephone interviews with 80 patients (53%), only 1 had experienced a fracture. Conclusions: In the patients with prostate cancer and androgen deprivation therapy, greater bone loss occurred during the first year. When the treatment did not exceed 2 years, the absolute risk of fracture was low, and clinical fractures were uncommon in the short and long term


Assuntos
Humanos , Masculino , Antagonistas de Androgênios/efeitos adversos , Desmineralização Patológica Óssea/induzido quimicamente , Osteoporose/induzido quimicamente , Neoplasias da Próstata/complicações , Fraturas Ósseas/epidemiologia , Fatores de Risco , Estudos Prospectivos , Difosfonatos/uso terapêutico
10.
Actas Urol Esp ; 41(8): 491-496, 2017 Oct.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-28259363

RESUMO

OBJECTIVES: To determine the rate of bone mass loss and the risk of fracture induced by androgen deprivation therapy in patients with prostate cancer. MATERIAL AND METHODS: Prospective study in 2 phases. In the first phase, demographic variables, FRAX®, bone mineral density and clinical fractures were collected, before starting the therapy and up to 1 year after ending the therapy. In the second phase, we conducted a telephone interview a mean of 8.5 years after the start of the study to assess new fractures. RESULTS: We included 150 patients with a mean age of 67 years and a mean therapy duration of 24 months. Before starting the treatment, 62 patients (41%) showed osteoporosis or low bone mass in the densitometry. After the first year of treatment, the bone mineral density decreased a mean of 3.7% and 2.1% in the lumbar spine and femoral neck, respectively. At the end of the second and third year, the loss rate was lower. During the first phase of the study, 4 patients (2.7%) experienced a fracture. In the telephone interviews with 80 patients (53%), only 1 had experienced a fracture. CONCLUSIONS: In the patients with prostate cancer and androgen deprivation therapy, greater bone loss occurred during the first year. When the treatment did not exceed 2 years, the absolute risk of fracture was low, and clinical fractures were uncommon in the short and long term.


Assuntos
Adenocarcinoma/tratamento farmacológico , Antagonistas de Androgênios/efeitos adversos , Androgênios , Anilidas/efeitos adversos , Fraturas Espontâneas/etiologia , Neoplasias Hormônio-Dependentes/tratamento farmacológico , Nitrilas/efeitos adversos , Osteoporose/induzido quimicamente , Neoplasias da Próstata/tratamento farmacológico , Compostos de Tosil/efeitos adversos , Adenocarcinoma/complicações , Adenocarcinoma/radioterapia , Idoso , Antagonistas de Androgênios/uso terapêutico , Androgênios/fisiologia , Anilidas/uso terapêutico , Antineoplásicos Hormonais/efeitos adversos , Antineoplásicos Hormonais/uso terapêutico , Densidade Óssea , Conservadores da Densidade Óssea/uso terapêutico , Cálcio/uso terapêutico , Terapia Combinada , Colo do Fêmur/diagnóstico por imagem , Seguimentos , Fraturas Espontâneas/epidemiologia , Fraturas Espontâneas/prevenção & controle , Hormônio Liberador de Gonadotropina/análogos & derivados , Humanos , Entrevistas como Assunto , Vértebras Lombares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Neoplasias Hormônio-Dependentes/complicações , Nitrilas/uso terapêutico , Osteoporose/complicações , Osteoporose/diagnóstico por imagem , Osteoporose/tratamento farmacológico , Estudos Prospectivos , Neoplasias da Próstata/complicações , Neoplasias da Próstata/radioterapia , Medição de Risco , Software , Compostos de Tosil/uso terapêutico , Vitamina D/uso terapêutico
11.
Trop Anim Health Prod ; 49(3): 537-546, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28116557

RESUMO

Replacing commercial concentrate with mulberry foliage was evaluated in a feeding trial lasting 126 days. Forty-eight weaned male Pelibuey lambs (20.6 ± 0.80 kg of BW) were randomly allocated to four groups: (1) supplementing the basal diet with mulberry at 1% (DM basis; M-1), (2) mulberry at 0.75% plus 0.1 kg concentrate fresh matter basis (M-0.75), (3) mulberry at 0.50% plus 0.2 kg concentrate (M-0.50) and (4) basal diet plus 0.3 kg concentrate (control; M-0). During the first 90 days, the basal diet was Pennisetum purpureum forage which was substituted by a mixture of guinea grass and sugarcane from 90 days. Average daily gain (ADG, g/day), dry matter intake (DMI) and feed conversion rate (FCR; DMI/ADG) were determined. The ADG was affected (P < 0.01) by the diet, with the lowest obtained in M-1 lambs (71 ± 6.4 g/day), whereas no differences among the other groups were observed (94 ± 6.4 g DM/lamb). The DMI was higher (P < 0.01) in M-0 (937 g DM/lamb) which concomitantly affected differences in FCR (11.9, 9.9, 10.5 and 9.7 kg DMI/kg BW gain for M-1, M-0.75, M-0.50 and M-0 lambs, respectively). Final BW at slaughtering and hot or cold carcass yields were coherent with growth rate findings. Biological yield (cold carcass weight/empty BW) was higher (P < 0.01) in M-0.75. Without compromising animal productivity, replacing imported concentrate with mulberry reduced the feeding cost. Optimum results were obtained with M-75 diet. Further studies must be conducted for optimizing energy/protein ratios with different ingredients while increasing DMI and lamb growth rates in this tropical genotype.


Assuntos
Ração Animal/análise , Criação de Animais Domésticos , Dieta/veterinária , Comportamento Alimentar , Morus , Ovinos/fisiologia , Animais , Animais Recém-Nascidos/crescimento & desenvolvimento , Animais Recém-Nascidos/fisiologia , Masculino , Ovinos/crescimento & desenvolvimento
13.
Rev Neurol ; 63(1): 33-41, 2016 Jul 01.
Artigo em Espanhol | MEDLINE | ID: mdl-27345278

RESUMO

INTRODUCTION: The signaling pathway AKT/mTOR is a central axis in regulating cellular processes, particularly in neurological diseases. In the case of epilepsy, it has been observed alteration in the pathophysiological process of the same. However, they have not described all the mechanisms of these signaling pathways that could open the opportunity to new research and therapeutic strategies. AIM: To review existing partnerships between intracellular signaling pathways AKT and mTOR in the pathophysiology of epilepsy. DEVELOPMENT: Epilepsy is a disease with a high epidemiological impact globally, so it is widely investigated regarding the pathophysiological components thereof. In that search they have been involved different intracellular signaling pathways in neurons, as determinants epileptogenic. Advances in this field have even allowed the successful implementation of new therapeutic strategies and to open the way to new research in the field. CONCLUSIONS: Improving knowledge about the pathophysiological role of the signaling pathway mTOR/AKT in epilepsy can raise new investigations regarding therapeutic alternatives. The use of mTOR inhibitors, has emerged in recent years as effective in treating this disease entity alternative however is clear the necessity of continue the research for new drug therapies.


TITLE: Vias de señalizacion mTOR y AKT en epilepsia.Introduccion. La via de señalizacion AKT/mTOR es un eje central en la regulacion celular, especialmente en las enfermedades neurologicas. En la epilepsia, se ha evidenciado su alteracion dentro de su proceso fisiopatologico. Sin embargo, aun no se han descrito todos los mecanismos de estas rutas de señalizacion, las cuales podrian abrir la puerta hacia nuevas investigaciones y estrategias terapeuticas, que finalmente permitan desarrollar tratamientos efectivos en enfermedades neurologicas como la epilepsia. Objetivo. Revisar las asociaciones existentes entre las rutas de señalizacion intracelular de mTOR y AKT en la fisiopatologia de la epilepsia. Desarrollo. La epilepsia es una enfermedad neurologica con un alto impacto epidemiologico en el mundo, por lo cual es de sumo interes la investigacion de los componentes fisiopatologicos que puedan generar nuevos tratamientos farmacologicos. En esta busqueda se han involucrado diferentes rutas de señalizacion intracelular en neuronas, como determinantes epileptogenos. Los avances en esta materia han permitido incluso la implementacion de nuevas estrategias terapeuticas exitosas y que abren el camino hacia nuevas investigaciones. Conclusiones. Mejorar los conocimientos respecto al papel fisiopatologico de la via de señalizacion mTOR/AKT en la epilepsia permite plantear nuevas investigaciones que ofrezcan nuevas alternativas terapeuticas para el tratamiento de la enfermedad. El uso de inhibidores de mTOR ha surgido en los ultimos años como una alternativa eficaz en el tratamiento de algunos tipos de epilepsias, pero es evidente la necesidad de seguir en la busqueda de nuevas terapias farmacologicas involucradas en estas vias de señalizacion.


Assuntos
Epilepsia/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Transdução de Sinais , Serina-Treonina Quinases TOR/metabolismo , Humanos , Neurônios/metabolismo
14.
Br J Cancer ; 113(2): 259-67, 2015 07 14.
Artigo em Inglês | MEDLINE | ID: mdl-26135897

RESUMO

BACKGROUND: Alterations in connexin 43 (Cx43) expression and/or gap junction (GJ)-mediated intercellular communication are implicated in cancer pathogenesis. Herein, we have investigated the role of Cx43 in melanoma cell proliferation and apoptosis sensitivity in vitro, as well as metastatic capability and tumour growth in vivo. METHODS: Connexin 43 expression levels, GJ coupling and proliferation rates were analysed in four different human melanoma cell lines. Furthermore, tumour growth and lung metastasis of high compared with low Cx43-expressing FMS cells were evaluated in vivo using a melanoma xenograft model. RESULTS: Specific inhibition of Cx43 channel activity accelerated melanoma cell proliferation, whereas overexpression of Cx43 increased GJ coupling and reduced cell growth. Moreover, Cx43 overexpression in FMS cells increased basal and tumour necrosis factor-α-induced apoptosis and resulted in decreased melanoma tumour growth and lower number and size of metastatic foci in vivo. CONCLUSIONS: Our findings reveal an important role for Cx43 in intrinsically controlling melanoma growth, death and metastasis, and emphasise the potential use of compounds that selectively enhance Cx43 expression on melanoma in the future chemotherapy and/or immunotherapy protocols.


Assuntos
Proliferação de Células , Conexina 43/fisiologia , Melanoma/patologia , Animais , Apoptose , Cálcio/metabolismo , Comunicação Celular , Linhagem Celular Tumoral , Junções Comunicantes/fisiologia , Humanos , Melanoma/secundário , Camundongos , Camundongos Endogâmicos NOD , Metástase Neoplásica
15.
Br J Cancer ; 113(1): 57-63, 2015 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-26035700

RESUMO

BACKGROUND: MYCN amplification with subsequent MYCN protein overexpression is a powerful indicator of poor prognosis of neuroblastoma patients. Little is known regarding the prognostic significance of the homologous MYC protein expression in neuroblastoma. METHODS: Immunostaining for MYCN and MYC protein was performed on 357 undifferentiated/poorly differentiated neuroblastomas. Results were analysed with other prognostic markers. RESULTS: Sixty-seven (19%) tumours were MYCN(+), 38 (11%) were MYC(+), and one(0.3%) had both proteins(+). MYCN(+) tumours and MYC(+) tumours were more likely diagnosed in children>18months with stage4-disease. MYCN(+) tumours were associated with amplified MYCN, Unfavourable Histology (UH), and High-MKI (Mitosis-Karyorrhexis Index). MYC(+) tumours were also frequently UH but not associated with MYCN amplification, and more likely to have low-/intermediate-MKI. Favourable Histology patients without MYC/MYCN expressions exhibited the best survival (N=167, 89.7±5.5% 3-year EFS, 97.0±3.2% 3-year OS), followed by UH patients without MYC/MYCN expressions (N=84, 63.1±13.6% 3-year EFS, 83.5±9.4% 3-year OS). MYCN(+)patients and MYC(+)patients had similar and significantly low (P<0.0001) survivals (46.2±12.0% 3-year EFS, 63.2±12.1% 3-year OS and 43.4±23.1% 3-year EFS, 63.5±19.2% 3-year OS, respectively). Notably, the prognostic impact imparted by MYC expression was independent from other markers. CONCLUSIONS: In this series, ∼30% of neuroblastomas had augmented MYCN or MYC expression with dismal survivals. Prospective study of MYC/MYCN protein expression signature as a new biomarker for high-risk neuroblastomas should be conducted.


Assuntos
Genes myc , Neuroblastoma/patologia , Proteínas Nucleares/fisiologia , Proteínas Oncogênicas/fisiologia , Diferenciação Celular , Criança , Estudos de Coortes , Humanos , Proteína Proto-Oncogênica N-Myc , Neuroblastoma/genética , Proteínas Nucleares/genética , Proteínas Oncogênicas/genética , Prognóstico
16.
Osteoporos Int ; 26(11): 2579-85, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26048675

RESUMO

UNLABELLED: A fracture liaison service in Spain is able to maintain 73 % of the patients on antiresorptive 2 years after the fracture. INTRODUCTION: The purpose of this study was to evaluate the 2-year effectiveness of a program for the secondary prevention of fractures. METHODS: Fragility fractures in patients over 50 attending the emergency room in our centre are captured by the recruitment system of a secondary prevention program. The unit is attended by a nurse, coordinated by two rheumatologists and with the collaboration of primary care consisted of a training program and annual meetings. The outcome of the program was analysed 2 years after implementation, including: (1) percentage of attendees/eligible; (2) percentage of attendees who start treatment with antiresorptive; (3) percentage of patients who retain treatment after 6, 12, 18 and 24 months; and (4) factors associated to adherence. RESULTS: After 2 years of implementation, the program detected 1674 patients with fracture, of whom 759 finally entered the program (57 % of eligible). After 3 months, 82 % of patients prescribed an antiresorptive started treatment. After a year, 52 % of the patients in the program, 72 % of those of a prescribed treatment, were taking antiresorptives. Adherence at 24 months among those who had prescribed anti-fracture drugs was 73 %. Factors associated with adherence at 12 months were female sex (76 vs 45 %; p = 0.01) and previous treatment with antiresorptive (86 vs 68 %; p = 0.02). CONCLUSIONS: In Spain, a program designed to prevent secondary fragility fractures based on the collaboration between primary care and rheumatology seems effective in terms of recruitment of patients and adherence to treatment in the mid/long-term.


Assuntos
Conservadores da Densidade Óssea/uso terapêutico , Adesão à Medicação/estatística & dados numéricos , Fraturas por Osteoporose/prevenção & controle , Idoso , Difosfonatos/uso terapêutico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Osteoporose/tratamento farmacológico , Fraturas por Osteoporose/etiologia , Atenção Primária à Saúde/organização & administração , Avaliação de Programas e Projetos de Saúde , Fatores de Risco , Prevenção Secundária/organização & administração , Fatores Sexuais , Espanha
17.
Rev. osteoporos. metab. miner. (Internet) ; 7(2): 49-53, abr.-jun. 2015. tab
Artigo em Espanhol | IBECS | ID: ibc-141775

RESUMO

Objetivos: El objetivo del estudio fue analizar el empleo de bisfosfonatos en mujeres con artritis reumatoide (AR) de las Islas Canarias. Material y métodos: Estudio observacional multicéntrico en el que se incluyeron mujeres con una edad igual o superior a 50 años. En una única visita se recogieron variables demográficas y de la AR, antecedente de fractura por fragilidad, uso de corticoides, realización de densitometría ósea (DXA) y tratamiento actual con bisfosfonatos. Se empleó una herramienta FRAX® simplificada y se aplicó la recomendación de profilaxis de osteoporosis por corticoides del American College of Rheumatology (ACR). Resultados: Se incluyeron 192 mujeres con edad promedio de 62 años. Un total de 91 (48%) pacientes recibían corticoides; 17 de ellas (9%) habían sufrido fractura; a 123 se les había realizado DXA (66%); y 52 (28%) tomaban bisfosfonatos (el 70% de las pacientes con osteoporosis o fractura y el 45% de aquéllas con criterios de profilaxis de osteoporosis por corticoides). Los factores asociados de manera significativa con el empleo de bisfosfonatos fueron la edad, la duración de la enfermedad, el cuestionario de capacidad funcional HAQ, el riesgo de fractura determinado por FRAX®, el tratamiento con corticoides, el antecedente de fractura y la realización previa de DXA. En el estudio multivariante sólo se asociaron de manera significativa la DXA (p=0,03) y el antecedente de fractura (p=0,02). Conclusiones: En las mujeres postmenopáusicas con AR de las Islas Canarias la prescripción de bisfosfonatos podría adecuarse mejor a las guías, especialmente en pacientes que reciben tratamiento con corticoides (AU)


Objective: The objective of this study was to analyse the use of bisphosphonates in women with rheumatoid arthritis (RA) in the Canary Islands. Material and methods: This multicentre observational study included women aged 50 years or over. At a single visit, demographic variables and those relating to the RA, history of fragility fractures, use of corticoids, performance of bone densitometry (DXA) and current treatment with bisphosphonates were recorded. The simplified FRAX ® tool was used and the recommendations of the American College of Rheumatology (ACR) for the prophylaxis of osteoporosis with corticoids were applied. Results: 192 women were included, with an average age of 62 years. A total of 91 (48%) patients were receiving corticoids; 17 of these (9%) had suffered a fracture; 123 (66%) had had a DXA; and 52 (28%) were taking bisphosphonates (70% of the patients with osteoporosis or fracture and 45% of those with criteria for prophylactic use of corticoids for osteoporosis). Those factors having a significant association with the use of bisphosphonates were age, duration of the disease, the HAQ functional capacity questionnaire, the risk of fracture determined by FRAX®, treatment with corticoids, history of fracture and the previous performance of DXA. In the multivariate study only the DXA (p=0.03) and history of fracture (p=0.02) were significantly associated. Conclusions: In postmenopausal women from the Canary Islands with RA the prescription of bisphosphonates could conform better to the guidelines, especially in patients receiving treatment with corticoids (AU)


Assuntos
Feminino , Humanos , Pessoa de Meia-Idade , Difosfonatos/uso terapêutico , Conservadores da Densidade Óssea/uso terapêutico , Artrite Reumatoide/complicações , Resultado do Tratamento , Densitometria , Densidade Óssea/fisiologia
18.
Bone Marrow Transplant ; 48(7): 947-52, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23334272

RESUMO

Increasing treatment intensity has improved outcomes for children with neuroblastoma. We performed a pilot study in the Children's Oncology Group to assess the feasibility and toxicity of a tandem myeloablative regimen without TBI supported by autologous CD34-selected peripheral blood stem cells. Forty-one patients with high-risk neuroblastoma were enrolled; eight patients did not receive any myeloablative consolidation procedure and seven received only one. Two patients out of 41 (4.9%) experienced transplant-related mortality. CD34 selection was discontinued after subjects were enrolled due to serious viral illness. From the time of study enrollment, the overall 3-year EFS and OS were 44.8 ± 9.6% and 59.2 ± 9.2% (N=41). These results demonstrate that tandem transplantation in the cooperative group setting is feasible and support a randomized comparison of single vs tandem myeloablative consolidation with PBSC support for high-risk neuroblastoma.


Assuntos
Neuroblastoma/mortalidade , Neuroblastoma/terapia , Transplante de Células-Tronco de Sangue Periférico , Condicionamento Pré-Transplante/métodos , Autoenxertos , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Projetos Piloto , Condicionamento Pré-Transplante/efeitos adversos , Viroses/etiologia , Viroses/mortalidade
19.
In. Naranjo �lvarez, Rolando J. Cefaleas. Enfoque salubrista (neurolog�a y neurocirug�a). La Habana, Ecimed, 2013. , tab.
Monografia em Espanhol | CUMED | ID: cum-56752
20.
Ann Rheum Dis ; 70(11): 1957-62, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21852252

RESUMO

OBJECTIVE: AMELIA (OsteoArthritis Modifying Effects of Long-term Intra-articular Adant) was designed to compare against placebo the efficacy and safety of repeated injections of hyaluronic acid (HA) and its effect on disease progression over 40 months. METHODS: A multicentre, randomised, patient and evaluator-blinded, controlled study in 306 patients fulfilling American College of Rheumatology criteria for knee osteoarthritis, radiological grades II-III (Kellgren-Lawrence) and joint space width ≥ 2 mm. Patients received four cycles of five intra-articular HA or placebo injections with a follow-up of 6 months after the first and second cycles, and 1 year after the third and fourth cycles. Osteoarthritis Research Society International (OARSI) 2004 responder criteria were used to assess efficacy. The consumption of rescue medication was a secondary outcome. Adverse events were recorded for safety purposes. RESULTS: At the 40-month visit significantly more patients responded to HA compared with placebo (OARSI 2004, p=0.004). The number of responders to HA increased through the study, whereas those to placebo did not change. Significant differences were also found in favour of HA for each individual component of the OARSI 2004. No safety problems were recorded. CONCLUSIONS: The results of AMELIA offer pioneer evidence that repeated cycles of intra-articular injections of HA not only improve knee osteoarthritis symptoms during the in-between cycle period but also exert a marked carry-over effect for at least 1 year after the last cycle. In this respect, it is not possible to establish if this carry-over effect reflects true osteoarthritis remission or just a modification of the disease's natural course. ClinicalTrials.gov number, NCT00669032.


Assuntos
Ácido Hialurônico/administração & dosagem , Osteoartrite do Joelho/tratamento farmacológico , Viscossuplementos/administração & dosagem , Idoso , Progressão da Doença , Esquema de Medicação , Feminino , Humanos , Ácido Hialurônico/efeitos adversos , Ácido Hialurônico/uso terapêutico , Injeções Intra-Articulares , Masculino , Pessoa de Meia-Idade , Medição da Dor/métodos , Método Simples-Cego , Resultado do Tratamento , Viscossuplementação/métodos , Viscossuplementos/efeitos adversos , Viscossuplementos/uso terapêutico
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