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1.
Ann Ig ; 32(4): 327-335, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32744291

RESUMEN

BACKGROUND: Intensive Rehabilitation Centres, known in Italy as "code 56", admit patients who need to recover from an acute episode. Different Rehabilitation Impact Indices have been proposed as composite rehabilitation outcomes measuring the rate of improvement due to a rehabilitation program. The most widely employed measure the performance of Activities of daily living in rehabilitation is the modified Barthel Index. The Barthel Index-based Rehabilitation Impact Indices are the Rehabilitation Effectiveness and the Rehabilitation Efficiency. AIM: The aim of our study was to evaluate the trade-off between Rehabilitation Effectiveness tayand Rehabilitation Efficiency with respect to the Barthel Index admission score and the Length Of Stay, and their ideal ranges that optimized both indices. METHODS: We retrospectively evaluated data of all patients admitted to intensive rehabilitation unit of the Scientific Institute for Research and Healthcare San Raffaele Pisana of Rome, from January 2006 to March 2018. The primary outcome measures of our study were patient's Rehabilitation Effectiveness and Rehabilitation Efficiency during the hospital stay. RESULTS: A database of 3,466 patients was analysed and the Rehabilitation Effectiveness and Rehabilitation Efficiency indexes were calculated. We calculated the median rank ratio of the Rehabilitation Effectiveness to the Rehabilitation Efficiency against Barthel Index scores. We calculated the median rank ratio of the Rehabilitation Effectiveness to Rehabilitation Efficiency against Barthel Index scores and days of stay. The median rank ratio of the Rehabilitation Effectiveness to the Rehabilitation Efficiency value were 1 in the range of Barthel Index scores from 32 to 42. The median rank ratio of the Rehabilitation Effectiveness to Rehabilitation Efficiency value were 1 for a Length of Stay corresponding to 33 days. CONCLUSIONS: In our study we calculated the Trade-offs between Rehabilitation Effectiveness and Rehabilitation Efficiency with respect to admission Barthel Index Score and Length Of Stay in a population of 3,466 patients affected by orthopedic (1,707) and neurological (1,759) diseases. Every member of the healthcare team should be aware of such trade-offs when they make decisions about rehabilitation services.


Asunto(s)
Evaluación de la Discapacidad , Personas con Discapacidad/rehabilitación , Resultado del Tratamiento , Actividades Cotidianas , Humanos , Italia , Tiempo de Internación , Centros de Rehabilitación , Estudios Retrospectivos , Ciudad de Roma
2.
Spinal Cord ; 55(12): 1103-1107, 2017 12.
Artículo en Inglés | MEDLINE | ID: mdl-28872148

RESUMEN

STUDY DESIGN: Observational prospective population-based incidence study. OBJECTIVES: The main objective of this study was to assess the incidence of traumatic spinal cord injuries (TSCIs) and incidence rates, in order to provide estimates by age, gender, characteristics and cause. SETTING: This study was conducted at acute-care spinal cord injury (SCI) hospitals and SCI centers from 11 Italian regions, between 1 October 2013 and 30 September 2014. METHODS: Data of all consecutive patients with acute TSCI who met the inclusion criteria were obtained through case reporting by clinicians. The data were collected into a web database. Incidence rates and incidence rate ratios were calculated and stratified by age, gender, cause, level and completeness. RESULTS: From 50% of the entire population of Italy, 445 new cases of TSCI were included. The crude incidence rate of TSCI was 14.7 cases per million per year (95% CI: 13.4-16.4); the overall male to female ratio was 4:1 and the mean age was 54. Complete information was available in 85% of the sample and revealed tetraplegia in 58% and incomplete lesion in 67% of cases. The leading cause of TSCI was falls (40.9%) followed by road traffic accidents (33.5%). The leading cause was falls for patients over 55 and road traffic accidents for patients under 55. CONCLUSION: The changing trend of TSCI epidemiology concerns the increase in the average age of TSCI people and the increase of both cervical and incomplete lesions. The etiology shows the primacy of falls over road traffic accidents and suggests the need for a change in prevention policies.


Asunto(s)
Traumatismos de la Médula Espinal/epidemiología , Adolescente , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Incidencia , Italia/epidemiología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores Sexuales , Traumatismos de la Médula Espinal/etiología , Adulto Joven
3.
Colorectal Dis ; 15(2): e89-92, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23045996

RESUMEN

AIM: The effectiveness of Doppler guided transanal haemorrhoidal dearterialization (THD) for arresting persistent haemorrhoidal bleeding in patients admitted as an emergency was studied. METHOD: Eleven patients with severe anal bleeding underwent emergency THD as definitive treatment for haemorrhoids. In the majority of patients antiplatelet or anticoagulant therapy was ongoing and severe anaemia was present in six patients. RESULTS: The mean operative time was 39.7 min. Six to nine feeding arteries were ligated. Intra-operative blood loss was nil. Bleeding was well controlled in all patients. No blood transfusion was required. Mean pain score per verbal numeric scale was 3.6 and 1.4 on day 1 and day 3 respectively. The mean time to resumption of normal activities was 8 days. No major complications were experienced. Six months follow-up demonstrated good control of haemorrhoidal disease. CONCLUSION: THD is effective in controlling acute haemorrhoidal bleeding with a low incidence of postoperative complications.


Asunto(s)
Canal Anal/cirugía , Cirugía Colorrectal/métodos , Hemorragia Gastrointestinal/cirugía , Hemorroides/cirugía , Recto/cirugía , Enfermedad Aguda , Adulto , Anciano , Canal Anal/irrigación sanguínea , Canal Anal/diagnóstico por imagen , Anticoagulantes/administración & dosificación , Arterias/diagnóstico por imagen , Arterias/cirugía , Tratamiento de Urgencia , Femenino , Hemorragia Gastrointestinal/diagnóstico por imagen , Hemorroides/diagnóstico por imagen , Técnicas Hemostáticas , Hospitalización , Humanos , Masculino , Persona de Mediana Edad , Inhibidores de Agregación Plaquetaria/administración & dosificación , Recto/irrigación sanguínea , Recto/diagnóstico por imagen , Resultado del Tratamiento , Ultrasonografía
4.
Ann Oncol ; 23(7): 1832-7, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-22115925

RESUMEN

BACKGROUND: Tumor human papillomavirus (HPV) status strongly affects overall survival (OS) of oropharyngeal cancer (OPC) patients. Recently, three groups with different outcomes were identified based on HPV status, smoking history and tumor stage. Our objective was to validate this model using a single-institutional retrospective database. PATIENTS AND METHODS: Patients (n=120) diagnosed with OPC at our institution, treated with concomitant cisplatin plus radiotherapy (RT) (n=64), induction chemotherapy followed by concomitant chemoradiation (n=39) or RT alone (n=17), were stratified in three groups with respect to the risk of death (low 26, intermediate 46 and high 49 patients) according to tumor p16 expression as surrogate of HPV status, pack-years of tobacco smoking and nodal/tumor stage. Group-stratified Kaplan-Meier OS curves were estimated and compared using the log-rank test. RESULTS: The 2-year OS estimates were 100%, 86% and 70%, respectively. The difference between the survival curves was statistically significant (P=0.009). The Harrell's concordance index was 0.70. The calibration plot showed a good concordance between our results and those observed in the original study. CONCLUSIONS: This study validates the risk grouping previously identified. Risk-driven clinical decision making and trial designs will help in better defining the most appropriate treatment in OPC patients.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Orofaríngeas/patología , Neoplasias Orofaríngeas/virología , Infecciones por Papillomavirus/complicaciones , Fumar/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Quimioradioterapia , Supervivencia sin Enfermedad , Femenino , Genes p16 , Humanos , Quimioterapia de Inducción , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Orofaríngeas/mortalidad , Neoplasias Orofaríngeas/terapia , Estudios Retrospectivos , Factores de Riesgo
5.
Spinal Cord ; 50(3): 238-42, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22124342

RESUMEN

STUDY DESIGN: Multicenter, prospective study. OBJECTIVES: To assess the occurrence and predictors of return to work after traumatic spinal cord injury (SCI). SETTING: Italian rehabilitation centers. METHODS: We evaluated patients previously included in the Italian Group for the Epidemiological Study of Spinal Cord Injuries study. A standardised telephone interview was used to collect data after a mean follow-up of 3.8 years. The main outcome measure was employment at the end of follow-up. RESULTS: A total of 403 patients, 336 men and 67 women, with a mean age of 41.8±16.3 years, were included in the follow-up. In all, 42.1% of patients were employed at the moment of the interview, though 62% reported a worsening in their employment level. Predictors of employment were education (P<0.0001), bowel continence (P=0.02), independence in mobility (P=0.0004), ability to drive (P<0.0001), participating in the community (P=0.0001) and ability to live alone (P<0.0001) while age (P<0.0001), being married (P<0.0001), tetraplegia (P=0.03), occurrence of recent medical problems (P=0.002), re-hospitalization (P=0.02), presence of architectonic barriers (P=0.009) and having a public welfare subsidy (P<0.0001), predicted unemployment. On the basis of multivariate analysis, younger age, education, absence of tetraplegia, ability to drive, ability to live alone, previous employment were independent predictors of employment after SCI. Employment at follow-up was related to several indicators of quality of life. CONCLUSION: Employment after SCI was rather frequent and was related to several patient characteristics and social factors. Specific interventions on the patient and on the social environment may favor employment after SCI and improve quality of life.


Asunto(s)
Empleo/estadística & datos numéricos , Calidad de Vida , Traumatismos de la Médula Espinal , Adulto , Femenino , Estudios de Seguimiento , Predicción , Humanos , Italia , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Características de la Residencia , Traumatismos de la Médula Espinal/economía , Traumatismos de la Médula Espinal/psicología , Traumatismos de la Médula Espinal/rehabilitación , Adulto Joven
6.
Spinal Cord ; 50(6): 452-6, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22231542

RESUMEN

STUDY DESIGN: Prospective, multicenter follow-up (F-U) observational study. OBJECTIVES: To investigate the changes in participation and sports practice of people after spinal cord injury (SCI) and their impact on perceived quality of life (QoL). METHODS: The questionnaire investigated the health status and management of clinical conditions and attendance of social integration, occupation, autonomy, car driving, sentimental relationships and perceived QoL in a SCI population 4 years after the first rehabilitation hospitalization. RESULTS: Respondents were 403, 83.4% male; 39% was tetraplegic. At F-U, 42.1% worked and studied, 42.2% still held their jobs or studies, and 69% drove the car. In all, 77.2% had bowel continence and 40.4% urinary continence. The results showed that for the 68.2% of respondents, the attendance of friends, relatives and colleagues during their free time was the same or increased compared with the time before the injury, whereas 31.8% showed a decrease. The amount of time the 52.1% of respondents left home was the same or increased compared with before the trauma, whereas 50.6% of the respondents said that the time they were engaged in hobbies was either the same or increased. CONCLUSION: SCI people who perceived their QoL as being higher, and whose attendance, autonomy and time was increased in respect to hobbies, were mainly men with an age range between 36 and 40 years, unmarried, paraplegic and with A-B Asia Score. Regarding the amount of time dedicated to practicing sports, the only difference was the most of that respondents, who indicated a decrease, were women.


Asunto(s)
Pasatiempos , Relaciones Interpersonales , Calidad de Vida , Traumatismos de la Médula Espinal , Deportes , Adulto , Femenino , Estudios de Seguimiento , Pasatiempos/psicología , Pasatiempos/estadística & datos numéricos , Humanos , Masculino , Calidad de Vida/psicología , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/psicología , Deportes/psicología , Deportes/estadística & datos numéricos , Encuestas y Cuestionarios
7.
Brain Inj ; 26(1): 27-35, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22149442

RESUMEN

OBJECTIVES: The aims of this study were to analyse TBI rehabilitation in Italy, identifying the main factors conditioning motor and functional recovery and destination upon discharge of traumatic severe acquired brain injury (sABI) patients who had undergone intensive rehabilitative treatment. DESIGN: An observational prospective study of 863 consecutive patients admitted to 52 Rehabilitation Centres from January 2001 to December 2003. RESULTS: The main cause of trauma was road accidents (79.8%), the mean length of stay was 87.31 ± 77.26 days and 40.4% access to rehabilitation facilities after a month. Pressure sore rates fell from 26.1% to 6.6% during the rehabilitation programme. After discharge 615 patients returned home, whilst 212 were admitted to other health facilities. DISCUSSION: This study highlights some major criticisms of rehabilitation of TBI. The delay of admission and evitable complications such as pressure sores are correlated to a worse outcome. While LOS causes a problem of cost-effectiveness, the rate of home discharge is prevalent and very high compared with other studies.


Asunto(s)
Lesiones Encefálicas/rehabilitación , Atención a la Salud/normas , Tiempo de Internación/estadística & datos numéricos , Alta del Paciente/estadística & datos numéricos , Úlcera por Presión/epidemiología , Accidentes de Tránsito , Adulto , Lesiones Encefálicas/complicaciones , Lesiones Encefálicas/epidemiología , Femenino , Escala de Coma de Glasgow , Humanos , Italia/epidemiología , Tiempo de Internación/economía , Masculino , Evaluación de Resultado en la Atención de Salud , Alta del Paciente/economía , Úlcera por Presión/etiología , Estudios Prospectivos , Desempeño Psicomotor , Recuperación de la Función , Factores de Tiempo , Resultado del Tratamiento
8.
Radiother Oncol ; 166: 92-99, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34748855

RESUMEN

INTRODUCTION: Stereotactic ablative radiotherapy (SABR) has been shown to increase survival in oligometastatic disease, but local control of colorectal metastases remains poor. We aimed to identify potential predictive factors of SBRT response through a multicenter large retrospective database and to investigate the progression to the polymetastatic disease (PMD). MATERIAL AND METHODS: The study involved 23 centers, and was approved by the Ethical Committee (Prot. Negrar 2019-ZT). 1033 lung metastases were reported. Clinical and biological parameters were evaluated as predictive for freedom from local progression-free survival (FLP). Secondary end-point was the time to the polymetastatic conversion (tPMC). RESULTS: Two-year FLP was 75.4%. Two-year FLP for lesions treated with a BED < 00 Gy, 100-124 Gy, and ≥125 Gy was 76.1%, 70.6%, and 94% (p = 0.000). Two-year FLP for lesion measuring ≤10 mm, 10-20 mm, and >20 mm was 79.7%, 77.1%, and 66.6% (p = 0.027). At the multivariate analysis a BED ≥125 Gy significantly reduced the risk of local progression (HR 0.24, 95%CI 0.11-0.51; p = 0.000). Median tPMC was 26.8 months. Lesions treated with BED ≥125 Gy reported a significantly longer tPMC as compared to lower BED. The median tPMC for patients treated to 1, 2-3 or 4-5 simultaneous oligometastases was 28.5, 25.4, and 9.8 months (p = 0.035). CONCLUSION: The present is the largest series of lung colorectal metastases treated with SABR. The results support the use of SBRT in lung oligometastatic colorectal cancer patients as it might delay the transition to PMD or offer relatively long disease-free period in selected cases. Predictive factors were identified for treatment personalization.


Asunto(s)
Neoplasias Colorrectales , Neoplasias Pulmonares , Radiocirugia , Neoplasias del Recto , Neoplasias Colorrectales/patología , Humanos , Radiocirugia/métodos , Neoplasias del Recto/etiología , Estudios Retrospectivos
9.
Ann Oncol ; 22(11): 2495-2500, 2011 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-21398385

RESUMEN

BACKGROUND: This monocentric study evaluates the activity and tolerability of docetaxel (Taxotere), cisplatin and 5-fluorouracil (5-FU) (TPF) induction chemotherapy followed by intensity-modulated radiotherapy (IMRT) concurrent with high-dose cisplatin in Epstein-Barr virus -related locally advanced undifferentiated nasopharyngeal cancer. PATIENTS AND METHODS: We retrospectively reviewed the records of patients who received induction docetaxel 75 mg/m(2) and cisplatin 75 mg/m(2) on day 1, and 5-FU 750 mg/m(2)/day (96-h continuous infusion). Following induction, patients received full doses of IMRT concurrently with cisplatin 100 mg/m(2) every 21 days for three cycles. RESULTS: Thirty patients received three TPF cycles (median). Induction was well tolerated; the main toxicity was neutropenia (33%, grade 3-4). During chemoradiotherapy, neutropenia (40%) and mucositis (43%) were the most frequent grade 3-4 adverse events. Mean dose of IMRT was 68.8 Gy. Worst late toxicity was xerostomia. Complete response rate was 93%. At 35 months, two patients had locoregional recurrence, three had distant metastases, and one had both. Three-year progression-free survival and overall survival were 79% [95% confidence interval (CI) 64% to 94%] and 87% (95% CI 74%- to 100%), respectively. CONCLUSIONS: In this high-stage nonendemic cancer population, TPF followed by high-dose cisplatin IMRT was promising; this treatment approach deserves evaluation in randomized trials.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Infecciones por Virus de Epstein-Barr/complicaciones , Neoplasias Nasofaríngeas/terapia , Neoplasias Nasofaríngeas/virología , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Cisplatino/administración & dosificación , Cisplatino/efectos adversos , Terapia Combinada , Supervivencia sin Enfermedad , Docetaxel , Femenino , Fluorouracilo/administración & dosificación , Fluorouracilo/efectos adversos , Humanos , Quimioterapia de Inducción , Metástasis Linfática , Masculino , Persona de Mediana Edad , Neoplasias Nasofaríngeas/tratamiento farmacológico , Neoplasias Nasofaríngeas/radioterapia , Radioterapia de Intensidad Modulada/efectos adversos , Radioterapia de Intensidad Modulada/métodos , Estudios Retrospectivos , Tasa de Supervivencia , Taxoides/administración & dosificación , Taxoides/efectos adversos
10.
G Chir ; 32(3): 120-2, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21453601

RESUMEN

OBJECTIVE: Lung cancer represents the leading cause of tumor death in the world with 50% of patients presenting metastatic disease at the time of diagnosis. Gastrointestinal (GI) lung cancer metastasis were thought to be extremely rare, but a much higher incidence has been noted in several autoptic reports. Clinical relevance of GI metastasis is low, but can increase with the higher number of newly diagnosed patients and with the efficacy of systemic chemotherapy in advanced stages. Prognosis of complicated GI lung cancer metastasis seems to be worse than the natural course of the disease and acute bleeding or perforation of metastatic site can be accelerated by chemotherapy. CASE REPORT: We describe the clinical case of a patient presenting with acute abdomen due to small bowel perforation from GI lung cancer metastasis. A review of the most recent published literature on GI lung cancer metastasis was performed. DISCUSSION: GI metastasis from lung cancer may occur within the clinical course of the disease and require surgical treatment followed by a poor outcome. Percentage of lung cancer patients with GI metastasis can reach level of 14%. Large cells carcinomas causing kidney and adrenal metastasis are more likely associated with GI localization of the disease. CONCLUSIONS: Complications of GI metastases, although rare, must be considered as possible cause of acute abdomen in patients with lung cancer. Identification of clinical indicators of GI metastasis may help in the therapeutic strategy.


Asunto(s)
Abdomen Agudo/etiología , Carcinoma de Células Grandes/complicaciones , Carcinoma de Células Grandes/secundario , Neoplasias del Yeyuno/complicaciones , Neoplasias del Yeyuno/secundario , Neoplasias Pulmonares/patología , Anciano , Resultado Fatal , Humanos , Masculino
11.
G Ital Med Lav Ergon ; 32(4 Suppl): 192-4, 2010.
Artículo en Italiano | MEDLINE | ID: mdl-21438259

RESUMEN

The aim of this study was to evaluate the employment condition of persons with TSCI 4 years after discharge from rehabilitation facilities, as well as the factors related to better outcome. In the follow-up we interviewed 403 persons. We recorded the following variables: current employment status, causes of unemployment and their correlation with demographic status, clinical status and other information. In our results 51.4% of the interviewed persons were unemployed, 34.7% had a job and 7.2% were students. Among the unemployed persons 34% had suffered an accident at work, 31% had been unable to find suitable work and 31% were retired. Employment significantly correlated with younger age, single status, being paraplegic, being autonomous in bladder/bowel management, driving a car and a better quality of life. In the multivariate analysis the factors predicting better outcome were younger age, ability to drive and a better quality of life.


Asunto(s)
Terapia Ocupacional , Traumatismos de la Médula Espinal/rehabilitación , Trabajo , Adulto , Femenino , Humanos , Masculino
12.
Eur J Vasc Endovasc Surg ; 35(1): 111-8, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17920308

RESUMEN

BACKGROUND: Chronic Venous Insufficiency (CVI) provokes skin pigmentation commonly seen in the gaiter region of the leg. The exact nature and pathogenesis of this are poorly understood. OBJECTIVE: To evaluate the presence of melanin and haemosiderin in histological sections of the skin of limbs with primary varicose veins. METHODS: Histological investigations were performed in 49 biopsies from pigmented and non-pigmented skin of limbs with varicose veins and control limbs. RESULTS: All samples from pigmented skin showed a higher content of melanin than controls. In contrast, haemosiderin was found in only a few biopsies taken from the more severely pigmented skin in areas of lipodermatosclerosis. Erythrocyte diapedesis was observed only where an intense inflammatory process was also present. CONCLUSIONS: Our findings suggest that in the initial phases of skin changes due to venous disease, pigmentation is attributable to melanin. Haemosiderin seems to play a role in the evolution of skin changes toward lipodermatosclerosis and ulceration. Erythrocyte diapedesis is likely to occur only during acute phases of the inflammatory process. Further investigations are needed to explain the cause and the exact cellular and molecular mechanisms responsible for hypermelanisation occurring in early phases of skin changes in CVI.


Asunto(s)
Hemosiderina/análisis , Melaninas/análisis , Pigmentación de la Piel , Piel/fisiopatología , Várices/fisiopatología , Insuficiencia Venosa/complicaciones , Estudios de Casos y Controles , Enfermedad Crónica , Eritrocitos/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Piel/química , Piel/patología , Várices/etiología , Várices/metabolismo , Várices/patología , Insuficiencia Venosa/metabolismo , Insuficiencia Venosa/patología , Insuficiencia Venosa/fisiopatología
13.
Cancer Lett ; 412: 272-282, 2018 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-29111347

RESUMEN

NPM1 is a multifunctional nucleolar protein implicated in several processes such as ribosome maturation and export, DNA damage response and apoptotic response to stress stimuli. The NPM1 gene is involved in human tumorigenesis and is found mutated in one third of acute myeloid leukemia patients, leading to the aberrant cytoplasmic localization of NPM1. Recent studies indicated that the N6L multivalent pseudopeptide, a synthetic ligand of cell-surface nucleolin, is also able to bind NPM1 with high affinity. N6L inhibits cell growth with different mechanisms and represents a good candidate as a novel anticancer drug for a number of malignancies of different histological origin. In this study we investigated whether N6L treatment could drive antitumor effect in acute myeloid leukemia cell lines. We found that N6L binds NPM1 at the N-terminal domain, co-localizes with cytoplasmic, mutated NPM1, and interferes with its protein-protein associations. N6L toxicity appears to be p53 dependent but interestingly, the leukemic cell line harbouring the mutated form of NPM1 is more resistant to treatment, suggesting that NPM1 cytoplasmic delocalization confers protection from p53 activation. Moreover, we show that N6L sensitizes AML cells to doxorubicin and cytarabine treatment. These studies suggest that N6L may be a promising option in combination therapies for acute myeloid leukemia treatment.


Asunto(s)
Leucemia Mieloide Aguda/tratamiento farmacológico , Proteínas Nucleares/fisiología , Péptidos/farmacología , Línea Celular Tumoral , Citarabina/farmacología , Doxorrubicina/farmacología , Humanos , Mutación , Proteínas Nucleares/análisis , Proteínas Nucleares/genética , Nucleofosmina , Proteína p53 Supresora de Tumor/fisiología
14.
Opt Express ; 15(18): 11750-5, 2007 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-19547536

RESUMEN

In this paper, we investigate the use of nonlinear distortion of the electrical post-detection signal in order to design simple, yet very effective, maximum likelihood sequence detection (MLSD) receivers for optical communications with direct photo-detection. This distortion enables the use of standard Euclidean branch metrics in the Viterbi algorithm which implements MLSD. Our results suggest that the nonlinear characteristic can be optimized with respect to the uncompensated chromatic dispersion and other relevant system parameters, such as the extinction ratio. The proposed schemes with optimized distortion exhibit the same performance of more sophisticated MLSD schemes, still guaranteeing more efficient Viterbi algorithm implementation.

16.
Oncogenesis ; 6(9): e379, 2017 Sep 18.
Artículo en Inglés | MEDLINE | ID: mdl-28920929

RESUMEN

Nucleophosmin (NPM1) is a multifunctional nucleolar protein implicated in ribogenesis, centrosome duplication, cell cycle control, regulation of DNA repair and apoptotic response to stress stimuli. The majority of these functions are played through the interactions with a variety of protein partners. NPM1 is frequently overexpressed in solid tumors of different histological origin. Furthermore NPM1 is the most frequently mutated protein in acute myeloid leukemia (AML) patients. Mutations map to the C-terminal domain and lead to the aberrant and stable localization of the protein in the cytoplasm of leukemic blasts. Among NPM1 protein partners, a pivotal role is played by the tumor suppressor Fbw7γ, an E3-ubiquitin ligase that degrades oncoproteins like c-MYC, cyclin E, Notch and c-jun. In AML with NPM1 mutations, Fbw7γ is degraded following its abnormal cytosolic delocalization by mutated NPM1. This mechanism also applies to other tumor suppressors and it has been suggested that it may play a key role in leukemogenesis. Here we analyse the interaction between NPM1 and Fbw7γ, by identifying the protein surfaces implicated in recognition and key aminoacids involved. Based on the results of computational methods, we propose a structural model for the interaction, which is substantiated by experimental findings on several site-directed mutants. We also extend the analysis to two other NPM1 partners (HIV Tat and CENP-W) and conclude that NPM1 uses the same molecular surface as a platform for recognizing different protein partners. We suggest that this region of NPM1 may be targeted for cancer treatment.

17.
Funct Neurol ; 32(1): 17-22, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28380319

RESUMEN

This study aimed to characterize the coefficient of friction (COF) curves of patients with Parkinson's disease (PD) during barefoot gait and to evaluate the relationships between this variable and functional scales. Twenty-two subjects with PD (ON phase of levodopa) and 22 healthy subjects participated in this study. The participants walked barefoot along a pathway that went over two force plates embedded in the floor of the data collection room. The instantaneous COF was calculated as the ratio between the horizontal and vertical components of the ground reaction forces. Two-sample t-tests applied to every 1% of the support phase of the COF curve were used to compare the groups and to identify the phases in which the two groups were different. Specifically, three COF areas were computed: Area 1 (for the loading response phase), Area 2 (for the midstance phase) and Area 3 (for the terminal stance phase). Pearson's tests were applied to assess the associations between the COF curve areas and the clinical scales. The subjects with PD exhibited lower COF values during the loading response and terminal stance phases and higher COF values during the mid-stance phase compared with the control group. A strong positive correlation was observed between Area 1 and the Timed Up and Go Test (90.3%). In conclusion, the patients' COFs exhibited patterns that were different from those of the control group. Moreover, during the loading response phase, these differences were well-correlated with the Timed Up and Go Test scale data; Timed Up and Go Test data can be used to identify the risk of falls among PD patients.


Asunto(s)
Fricción , Trastornos Neurológicos de la Marcha/fisiopatología , Enfermedad de Parkinson/fisiopatología , Anciano , Antiparkinsonianos/uso terapéutico , Fenómenos Biomecánicos , Femenino , Trastornos Neurológicos de la Marcha/complicaciones , Trastornos Neurológicos de la Marcha/tratamiento farmacológico , Humanos , Levodopa/uso terapéutico , Masculino , Persona de Mediana Edad , Enfermedad de Parkinson/complicaciones , Enfermedad de Parkinson/tratamiento farmacológico
18.
Eura Medicophys ; 42(1): 17-22, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16565681

RESUMEN

AIM: The aim of this study was to analyze the outcome at one-year follow-up of patients with traumatic brain injuries (TBI) after 4 years of application of our organizing model and compare our results with the international data in terms of disability (functional independence measure [FIM], disability rating scale [DRS] scores) and social integration (community integration questionnaire [CIQ], work reentry) METHODS: We started a routine based on the presence of the physiatrist in the Intensive Care Unit (ICU) and Neurosurgery 3 times per week to evaluate all patients with TBI, program and control physiotherapeutic treatments and transfers to rehabilitative centers. Data were collected considering 80 TBI patients sequentially discharged from our department, from August 1999 to December 2003. The sample was composed of patients with severe brain injury evaluated at rehabilitation admission, rehabilitation discharge and one-year follow-up. We compared our data with those of the Traumatic Brain Injury Model System Data Base (TBI MSDB) and Gruppo Italiano per lo Studio delle Cerebrolesioni Acquisite Riabilitazione (GISCAR). RESULTS: Disability at one-year follow-up was better than at discharge: increase in FIM value, in DRS value. Social reintegration and return to work were not optimal: CIQ value was 16 and only 38% of patients returned to work at follow-up. Disability and social integration mean scores in our sample were similar to those obtained in TBI MSDB and so were the values of onset-admission interval (OAI) and length of stay (LOS). Differences were found with the Italian GISCAR database where mean OAI and LOS were higher than in our sample (55 and 86 days vs 18 and 37 days). CONCLUSIONS: Our data show that this kind of organizing model for the rehabilitative evolution of TBI patients can positively influence the cost-efficiency rate of rehabilitation process reducing care costs in terms of ICU and rehabilitation LOS without affecting outcome in terms of disability and reintegration.


Asunto(s)
Lesiones Encefálicas/rehabilitación , Adulto , Evaluación de la Discapacidad , Empleo/estadística & datos numéricos , Femenino , Humanos , Tiempo de Internación/estadística & datos numéricos , Masculino , Estadísticas no Paramétricas , Índices de Gravedad del Trauma , Resultado del Tratamiento
19.
Eura Medicophys ; 42(3): 211-8, 2006 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-17039217

RESUMEN

UNLABELLED: AIM. The aim of this study is to show the compliance and the test-retest reliability of the questionnaire. METHODS: Construction of a structured questionnaire to perform a phone follow-up in 511 persons with traumatic spinal cord injury (SCI) 4 years after discharge from the first rehabilitative hospitalization. The questionnaire is structured in 24 items, comprising exclusion (closed questions) answers and 3 analogic scale answers, divided into 7 aspects: clinical conditions, sentimental relationships, quality of life, autonomy, mobility, occupation, social reintegration. A pilot survey on 20 subjects with SCI, hospitalized in different periods in 2 rehabilitation centers, was performed to check the questionnaire's feasibility and reproducibility. The persons were interviewed twice by telephone, with an interval of about one month, by a psychologist. The questionnaire was completed during one single phone conversation. RESULTS: No missing answers were recorded. The test run for this questionnaire showed high reproducibility based on the large numbers of questions with 100% correspondence between the answers ''before'' and ''after''. For most of the other questions this factor ranged between 80% and 99%, and for 2 questions on the analogic scale between 30% and 50%. CONCLUSIONS: The data collected by this pilot survey show the reliability of this questionnaire for all answers, save for the quantification of subjective variables.


Asunto(s)
Traumatismos de la Médula Espinal/rehabilitación , Encuestas y Cuestionarios , Actividades Cotidianas , Adulto , Anciano , Estudios de Factibilidad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Psicometría , Calidad de Vida , Reproducibilidad de los Resultados , Traumatismos de la Médula Espinal/fisiopatología
20.
Eura Medicophys ; 42(3): 227-30, 2006 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-17039220

RESUMEN

AIM: It is important to assess aphasics' quality of life in order to plan a rehabilitation treatment. To date such a tool is still missing for Italian patients. This paper reports normative data of the Italian version of SAQOL-39, a British questionnaire aimed to assess aphasics' quality of life. It consists of 39 items, divided into 4 subdomains (Physical, Communication, Psychosocial and Energy). METHODS: Forty-two patients coming from 3 different Speech Therapy Services were enrolled. All patients completed speech therapy before examination. They were submitted to the Italian SAQOL-39 and 2 screening tests for aphasia: 1) Communication Assessment Scale according Goodglass and Kaplan; 2) Franchay Aphasia Screening Test (FAST). A receptive FAST score of 7 out of 15 was used as a cut-off score for SAQOL-39 administration. RESULTS: The Italian SAQOL-39 showed good internal consistency (full scale Cronbach's alpha 0.939). Cronbach's alpha for every subdomains ranged from 0.950 (Communication) to 0.720 (Energy). Fluent aphasics gave significantly higher scores than nonfluent ones on full scale, and all out of Energy subdomains. Furthermore gravity of aphasia correlated with both full scale and Communication subdomain scores. CONCLUSIONS: In authors' opinion, the Italian SAQOL-39 shares many psychometric features with the English one. This questionnaire seems to be suitable for clinical practice.


Asunto(s)
Afasia/rehabilitación , Calidad de Vida , Encuestas y Cuestionarios/normas , Anciano , Afasia/fisiopatología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Psicometría , Análisis de Regresión , Reproducibilidad de los Resultados , Resultado del Tratamiento
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