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1.
J Genet Couns ; 32(5): 1088-1101, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37183616

RESUMEN

Neurofibromatosis 1 (NF1) is a common genetic disorder typically diagnosed in childhood and characterized by cutaneous findings, nerve sheath tumors, skeletal abnormalities, malignancies, and developmental differences. Due to its variability, NF1 is an unpredictable condition that parents have concerns about discussing with their children. While there are publications addressing the disclosure of genetic conditions in general, no NF1-specific disclosure literature exists. To fill this gap, this mixed methods study sought to evaluate the concerns, barriers, failures, or successes parents or guardians have experienced when they have or have not chosen to tell their child(ren) about an NF1 diagnosis. Parents of children between ages 0 and 17 with a diagnosis of NF1 completed a survey and some parents were selected for an interview invitation. A total of 258 surveys were completed, and 20 parents were interviewed. Interview transcripts were categorized into disclosure and non-disclosure groups. Themes were organized into five categories based on interview questions: disclosure concerns, factors affecting disclosure/non-disclosure, approaches to disclosure, desired resources, and recommendations for disclosure. Sentiment analysis was performed on responses about the disclosure discussion itself. Results indicated that most parents (70.5%) disclosed the NF1 diagnosis to their child and overall felt it was a positive experience. Almost one-third of parents (29.5%) had not disclosed the diagnosis. A strong significance was identified between disclosure and severe presentation of NF1 (p = 0.0008). Parents in both groups shared similar concerns about discussing the diagnosis and multiple factors influenced the disclosure decision. Most parents approached disclosure as a process and emphasized the need to be honest and supportive of their child. Parents highlighted the need for more educational resources for children and guidance on how to disclose. These findings indicate that additional resources and support for parents would facilitate disclosure and the involvement of genetic counselors in the process would be beneficial.

2.
Arch Phys Med Rehabil ; 103(2): 331-335, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34728190

RESUMEN

OBJECTIVE: To determine differences in obesity, type 2 diabetes, and hypertension in Black patients compared with White patients with multiple sclerosis (MS). DESIGN: Cross-sectional database review. SETTING: Large academic medical center research records database. PARTICIPANTS: A total of 3191 patient cases (N=3191; 77% female, 34% Black) identified by MS diagnosis within the medical record. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Diagnosis codes for type 2 diabetes and hypertension. Body mass index (BMI), race, age, and sex were collected. Analysis of variance (continuous variables) and chi-square analyses (categorical variables) were conducted to determine differences in obesity, diabetes, and hypertension between race and sex. Logistic regression was conducted to determine odds ratios (ORs) of developing diabetes and hypertension based on race, sex, BMI, and age. RESULTS: Black patients were more than twice as likely to be diagnosed as having diabetes (OR, 2.15 [95% CI, 1.70-2.72]; P<.0001) or hypertension (OR, 2.44 [95% CI, 2.05-2.91], P<.0001) compared with White patients. Sex did not present a greater likelihood of being diagnosed as having diabetes; however, men were 1.22 times more likely be diagnosed as having hypertension compared with women (95% CI, 1.01-1.49; P=.0439). Increased age and BMI were also significantly associated with likelihood of diagnosis of diabetes and hypertension (age: diabetes OR, 1.05 [95% CI, 1.04-1.06], P<.0001; hypertension OR, 1.06 [95% CI, 1.05-1.06], P<.0001; BMI: diabetes obese vs normal: OR, 2.11 [95% CI, 1.43-3.11], P=.0002; hypertension: obese vs normal: OR, 1.72 [95% CI, 1.39-2.13], P<.0001). CONCLUSIONS: Black patients with MS are significantly more likely to have cardiometabolic conditions than White patients. These conditions have been associated with poorer health outcomes for people with MS and may have some effect on the differences in MS disease course reported in Black patients.


Asunto(s)
Diabetes Mellitus Tipo 2 , Hipertensión , Esclerosis Múltiple , Diabetes Mellitus Tipo 2/epidemiología , Femenino , Humanos , Hipertensión/complicaciones , Hipertensión/epidemiología , Masculino , Esclerosis Múltiple/complicaciones , Esclerosis Múltiple/epidemiología , Obesidad/complicaciones , Obesidad/epidemiología , Población Blanca
3.
Ann Intern Med ; 174(11): 1510-1518, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34570596

RESUMEN

BACKGROUND: The safety and effectiveness of live virus vaccines, such as the varicella-zoster vaccine, are unknown in patients with inflammatory diseases receiving immunomodulatory therapy such as tumor necrosis factor inhibitors (TNFis). OBJECTIVE: To evaluate the safety and immunogenicity of the live attenuated zoster vaccine (ZVL) in patients receiving TNFis. DESIGN: Randomized, blinded, placebo-controlled trial. (ClinicalTrials.gov: NCT02538341). SETTING: Academic and community-based rheumatology, gastroenterology, and dermatology practices. PATIENTS: Adults aged 50 years or older receiving TNFis for any indication. INTERVENTION: Random assignment to ZVL versus placebo. MEASUREMENTS: Glycoprotein enzyme-linked immunosorbent assay (gpELISA) and enzyme-linked immunosorbent spot (ELISpot) from serum and peripheral blood mononuclear cells measured at baseline and 6 weeks after vaccination. Suspected varicella infection or herpes zoster was clinically assessed using digital photographs and polymerase chain reaction on vesicular fluid. RESULTS: Between March 2015 and December 2018, 617 participants were randomly assigned in a 1:1 ratio to receive ZVL (n = 310) or placebo (n = 307) at 33 centers. Mean age was 62.7 years (SD, 7.5); 66.1% of participants were female, 90% were White, 8.2% were Black, and 5.9% were Hispanic. The most common TNFi indications were rheumatoid arthritis (57.6%) and psoriatic arthritis (24.1%); TNFi medications were adalimumab (32.7%), infliximab (31.3%), etanercept (21.2%), golimumab (9.1%), and certolizumab (5.7%). Concomitant therapies included methotrexate (48.0%) and oral glucocorticoids (10.5%). Through week 6, no cases of confirmed varicella infection were found; cumulative incidence of varicella infection or shingles was 0.0% (95% CI, 0.0% to 1.2%). At 6 weeks, compared with baseline, the mean increases in geometric mean fold rise as measured by gpELISA and ELISpot were 1.33 percentage points (CI, 1.17 to 1.51 percentage points) and 1.39 percentage points (CI, 1.07 to 1.82 percentage points), respectively. LIMITATION: Potentially limited generalizability to patients receiving other types of immunomodulators. CONCLUSION: This trial informs safety concerns related to use of live virus vaccines in patients receiving biologics. PRIMARY FUNDING SOURCE: The National Institute of Arthritis and Musculoskeletal and Skin Diseases and the American College of Rheumatology.


Asunto(s)
Varicela/prevención & control , Vacuna contra el Herpes Zóster , Herpes Zóster/prevención & control , Inhibidores del Factor de Necrosis Tumoral/uso terapéutico , Vacunas Atenuadas , Artritis Psoriásica/tratamiento farmacológico , Artritis Reumatoide/tratamiento farmacológico , Varicela/epidemiología , Método Doble Ciego , Ensayo de Inmunoadsorción Enzimática , Ensayo de Immunospot Ligado a Enzimas , Femenino , Herpes Zóster/epidemiología , Herpesvirus Humano 3/inmunología , Humanos , Inmunogenicidad Vacunal , Inmunoglobulina G/sangre , Masculino , Persona de Mediana Edad
4.
Eye Contact Lens ; 47(5): 277-282, 2021 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-33290295

RESUMEN

OBJECTIVES: To retrospectively compare frequency of contact lens (CL) complications in soft CL users of hydrogen peroxide (H2O2) and multipurpose solutions (MPS). METHODS: This was a multicenter, retrospective chart review of CL records from each patient's three most recent eye examinations at academic and private practices. Patients must have used the same solution type for at least 3 years. Univariate analyses were conducted using t tests, and chi-square or Fisher's exact test for categorical measures. RESULTS: There were 1,137 patients included, with 670 (59%) using MPS and 467 (41%) H2O2. In total, 706 (62%) experienced at least one complication; 409 used MPS and 297 used H2O2. There was no difference in the proportion of patients experiencing at least one complication between MPS (61%) and H2O2 (64%) (P=0.38). Multipurpose solutions users were more likely to report discomfort compared with H2O2 users (P=0.04). Presumed microbial keratitis was experienced by 16 MPS and nine H2O2 users (P=0.60). CONCLUSIONS: No significant differences were found in the frequency of CL complications between MPS and H2O2. H2O2 users were less likely to report discomfort and thus switching to a H2O2 system may be an alternative in CL users with discomfort.


Asunto(s)
Lentes de Contacto Hidrofílicos , Queratitis , Soluciones para Lentes de Contacto/efectos adversos , Humanos , Peróxido de Hidrógeno/efectos adversos , Estudios Retrospectivos , Estados Unidos/epidemiología
5.
Clin Infect Dis ; 70(4): 687-691, 2020 02 03.
Artículo en Inglés | MEDLINE | ID: mdl-31179503

RESUMEN

Human immunodeficiency virus-seronegative men aged 15-22 years who lost bone mineral density (BMD) during tenofovir disoproxil fumarate/emtricitabine preexposure prophylaxis (PrEP) showed BMD recovery 48 weeks following PrEP discontinuation. Lumbar spine and whole body BMD z-scores remained below baseline 48 weeks off PrEP in participants aged 15-19 years. Clinical Trials Registration. NCT01772823 (ATN 110) and NCT01769456 (ATN 113).


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Profilaxis Pre-Exposición , Minorías Sexuales y de Género , Adolescente , Adulto , Fármacos Anti-VIH/farmacología , Fármacos Anti-VIH/uso terapéutico , Densidad Ósea , Emtricitabina/farmacología , Emtricitabina/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Homosexualidad Masculina , Humanos , Masculino , Tenofovir/farmacología , Tenofovir/uso terapéutico , Adulto Joven
6.
Brain ; 142(9): 2722-2736, 2019 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-31289819

RESUMEN

Multiple sclerosis is a heterogeneous disease with an unpredictable course and a wide range of severity; some individuals rapidly progress to a disabled state whereas others experience only mild symptoms. Though genetic studies have identified variants that are associated with an increased risk of developing multiple sclerosis, no variants have been consistently associated with multiple sclerosis severity. In part, the lack of findings is related to inherent limitations of clinical rating scales; these scales are insensitive to early degenerative changes that underlie disease progression. Optical coherence tomography imaging of the retina and low-contrast letter acuity correlate with and predict clinical and imaging-based outcomes in multiple sclerosis. Therefore, they may serve as sensitive phenotypes to discover genetic predictors of disease course. We conducted a set of genome-wide association studies of longitudinal structural and functional visual pathway phenotypes in multiple sclerosis. First, we assessed genetic predictors of ganglion cell/inner plexiform layer atrophy in a discovery cohort of 374 patients with multiple sclerosis using mixed-effects models adjusting for age, sex, disease duration, optic neuritis and genetic ancestry and using a combination of single-variant and network-based analyses. For candidate variants identified in discovery, we conducted a similar set of analyses of ganglion cell/inner plexiform layer thinning in a replication cohort (n = 376). Second, we assessed genetic predictors of sustained loss of 5-letters in low-contrast letter acuity in discovery (n = 582) using multivariable-adjusted Cox proportional hazards models. We then evaluated candidate variants/pathways in a replication cohort. (n = 253). Results of both studies revealed novel subnetworks highly enriched for connected genes in early complement activation linked to measures of disease severity. Within these networks, C3 was the gene most strongly associated with ganglion cell/inner plexiform layer atrophy (P = 0.004) and C1QA and CR1 were top results in analysis of sustained low-contrast letter acuity loss. Namely, variant rs158772, linked to C1QA, and rs61822967, linked to CR1, were associated with 71% and 40% increases in risk of sustained LCLA loss, respectively, in meta-analysis pooling discovery and replication cohorts (rs158772: hazard ratio: 1.71; 95% confidence interval 1.30-2.25; P = 1.3 × 10-4; rs61822967: hazard ratio: 1.40; 95% confidence interval: 1.16-1.68; P = 4.1 × 10-4). In conclusion, early complement pathway gene variants were consistently associated with structural and functional measures of multiple sclerosis severity. These results from unbiased analyses are strongly supported by several prior reports that mechanistically implicated early complement factors in neurodegeneration.


Asunto(s)
Proteínas del Sistema Complemento/genética , Redes Reguladoras de Genes/genética , Esclerosis Múltiple/genética , Degeneración Nerviosa/genética , Vías Visuales/fisiopatología , Adulto , Ensayos Clínicos Fase III como Asunto , Método Doble Ciego , Femenino , Estudios de Seguimiento , Heterogeneidad Genética , Estudio de Asociación del Genoma Completo , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Esclerosis Múltiple/inmunología , Esclerosis Múltiple/patología , Polimorfismo de Nucleótido Simple , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Ensayos Clínicos Controlados Aleatorios como Asunto , Retina/patología , Tomografía de Coherencia Óptica
7.
Am J Emerg Med ; 38(7): 1396-1401, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-31836342

RESUMEN

OBJECTIVE: We implemented a nontargeted, opt-out HCV testing and linkage to care (LTC) program in an academic tertiary care emergency department (ED). Despite research showing the critical role of ED-based HCV testing programs, predictors of LTC have not been defined for patients identified through the nontargeted ED testing strategy. In order to optimize health outcomes for patients with HCV, we sought to identify predictors of LTC failure. METHODS: This was a retrospective cohort study of adult patients who were tested for HCV in the ED between August 2015 and September 2018 and were confirmed to have chronic HCV infection through RNA testing. We used logistic regression to assess the relationship between candidate predictors and the primary outcome, LTC failure, which was defined as a patient not being seen by an HCV treating provider after discharge from the ED. RESULTS: Of 53,297 patients tested, 1,674 (3.1%) had HCV on confirmatory testing, and 355 (21%) linked to care. Predictors of LTC failure included younger age (OR 0.96, 95% CI 0.95-0.97), white race (OR 1.65, 95% CI 1.23-2.22), homelessness (OR 1.91, 95% CI 1.19-3.08), substance use (OR 1.77, 95% CI 1.34-2.34), and comorbid psychiatric illness (OR 2.16, 95% CI 1.59-2.94). Patients with significant medical comorbidities (OR 0.57, 95% CI 0.41-0.78) or HIV co-infection (OR 0.11, 95% CI 0.03-0.46) were less likely to experience LTC failure. CONCLUSIONS: One in five HCV-infected patients identified by ED-based nontargeted testing successfully linked to an HCV treating provider. Predictors of LTC failure may guide the development of targeted interventions to improve LTC success.


Asunto(s)
Continuidad de la Atención al Paciente/estadística & datos numéricos , Etnicidad/estadística & datos numéricos , Hepatitis C Crónica/diagnóstico , Trastornos Mentales/epidemiología , Derivación y Consulta/estadística & datos numéricos , Adulto , Factores de Edad , Alabama/epidemiología , Estudios de Cohortes , Comorbilidad , Servicio de Urgencia en Hospital , Femenino , Infecciones por VIH/epidemiología , Anticuerpos contra la Hepatitis C/sangre , Hepatitis C Crónica/sangre , Hepatitis C Crónica/epidemiología , Hepatitis C Crónica/terapia , Personas con Mala Vivienda/estadística & datos numéricos , Humanos , Modelos Logísticos , Masculino , Tamizaje Masivo , Persona de Mediana Edad , ARN Viral/sangre , Estudios Retrospectivos , Trastornos Relacionados con Sustancias/epidemiología
8.
Mult Scler ; 23(7): 982-987, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27682227

RESUMEN

BACKGROUND: In randomized clinical trials, when treatments do not work equally effectively across stratifications of participants, observed event rates may differ from those hypothesized leading to deviations in estimated power. OBJECTIVES: To investigate the effect of distributions of baseline Expanded Disability Status Scale (EDSS) proportions in relapsing-remitting multiple sclerosis (RRMS) on the trial outcome, confirmed disability progression rate (CDPR), and power. METHODS: We reported CDPRs in the CombiRx trial by baseline EDSS and by groups (1st (0, 1), 2nd (1.5, 2), 3rd (2.5, 3), and 4th (⩾3.5)) and investigated the effect of different combinations of baseline EDSS proportions on the trial outcome and power. RESULTS: There were 244 (25.4%) participants in the 1st group, 368 (38.4%) in the 2nd group, 223 (23.3%) in the 3rd group, and 124 (12.9%) in the 4th group with CDPRs of 40.1%, 13.9%, 11.2%, and 16.9%, respectively. Both CDPR and power increased when the proportion of the 1st group increased in hypothetical trials with equal sample sizes in each arm, and a 10% increase in the 1st group led to a 5% increase in power. CONCLUSION: Various baseline EDSS proportions yielded different CDPRs and power, suggesting caution in interpretation of treatment effects across trials that enrolled participants with different proportions of baseline EDSS.


Asunto(s)
Evaluación de la Discapacidad , Esclerosis Múltiple Recurrente-Remitente/diagnóstico , Proyectos de Investigación , Adolescente , Adulto , Interpretación Estadística de Datos , Progresión de la Enfermedad , Método Doble Ciego , Quimioterapia Combinada , Determinación de Punto Final , Femenino , Acetato de Glatiramer/uso terapéutico , Humanos , Inmunosupresores/uso terapéutico , Interferón beta-1a/uso terapéutico , Masculino , Persona de Mediana Edad , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Esclerosis Múltiple Recurrente-Remitente/fisiopatología , Valor Predictivo de las Pruebas , Reproducibilidad de los Resultados , Proyectos de Investigación/estadística & datos numéricos , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
9.
Ann Rheum Dis ; 75(10): 1757-62, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-26546586

RESUMEN

OBJECTIVE: Studies suggest that circulating type I interferon (IFN) may predict response to biological agents in rheumatoid arthritis (RA). Prediction of response prior to initiating therapy would represent a major advancement. METHODS: We studied sera from a test set of 32 patients with RA from the Auto-immune Biomarkers Collaborative Network Consortium and a validation set of 92 patients with RA from the Treatment Efficacy and Toxicity in Rheumatoid Arthritis Database and Repository registry. The test set included those with good response or no response to tumour necrosis factor (TNF) inhibitors at 14 weeks by European League Against Rheumatism criteria. The validation set included subjects with good, moderate or no response at 12 weeks. Total serum type I IFN activity, IFN-α and IFN-ß activity were measured using a functional reporter cell assay. RESULTS: In the test set, an increased ratio of IFN-ß to IFN-α (IFN-ß/α activity ratio) in pretreatment serum associated with lack of response to TNF inhibition (p=0.013). Anti-cyclic citrullinated peptide antibody titre and class of TNF inhibitor did not influence this relationship. A receiver-operator curve supported a ratio of 1.3 as the optimal cut-off. In the validation set, subjects with an IFN-ß/α activity ratio >1.3 were significantly more likely to have non-response than good response (OR=6.67, p=0.018). The test had 77% specificity and 45% sensitivity for prediction of non-response compared with moderate or good response. Meta-analysis of test and validation sets confirmed strong predictive capacity of IFN-ß/α activity ratio (p=0.005). CONCLUSIONS: Increased pretreatment serum IFN-ß/α ratio strongly associated with non-response to TNF inhibition. This study supports further investigation of serum type I IFN in predicting outcome of TNF inhibition in RA.


Asunto(s)
Antirreumáticos/uso terapéutico , Artritis Reumatoide/sangre , Artritis Reumatoide/tratamiento farmacológico , Interferón-alfa/sangre , Interferón beta/sangre , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores/sangre , Bases de Datos Factuales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Pronóstico , Sistema de Registros , Sensibilidad y Especificidad , Resultado del Tratamiento , Adulto Joven
10.
J Relig Health ; 55(1): 255-268, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26286843

RESUMEN

HIV infection rates continue to disproportionately affect Black men who have sex with men (Black MSM) compared to other groups. Research has shown that higher rates of substance use and higher levels of depression are positively correlated with higher sexual risk behavior, and little research has examined relationships between high levels of religiosity and spirituality prevalent in Black culture and issues of substance use and depression among Black MSM. This study did just that and found a relationship between religiosity, spirituality, and risk behavior. These relationships suggest that future HIV prevention models might incorporate religiosity and spirituality to increase the efficacy of risk reduction interventions for Black MSM.


Asunto(s)
Negro o Afroamericano/psicología , Trastorno Depresivo/psicología , Homosexualidad Masculina/psicología , Religión y Psicología , Trastornos Relacionados con Sustancias/psicología , Adolescente , Adulto , Negro o Afroamericano/estadística & datos numéricos , Anciano , Trastorno Depresivo/complicaciones , Homosexualidad Masculina/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Asunción de Riesgos , Parejas Sexuales/psicología , Espiritualidad , Trastornos Relacionados con Sustancias/complicaciones , Adulto Joven
11.
J Relig Health ; 55(2): 535-48, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26475314

RESUMEN

Blacks in the USA, including black men who have sex with men (MSM), tend to have stronger religious and spiritual affiliations compared with other racial/ethnic populations. HIV and STD incidence rates continue to rise among Black MSM. Using data from the CDC Brothers y Hermanos (ByHS) project, this study examined correlations between high-risk behavior, e.g., substance use and high-risk sexual behavior (e.g., condom use history, unprotected sexual intercourse, HIV infection status, and STD infection status) religiosity, spirituality, age, among Black MSM (N = 1141). This exploratory study examined whether religiosity and spirituality were associated with high-risk behavior and high-risk sexual behavior among Black MSM. Religiosity and spirituality indices were compiled from the ByHS data. The religiosity index was significantly associated with HIV infection and use of cocaine, crack, and poppers as well as marginally associated with ecstasy use. Spirituality was significantly associated with HIV infection status, STD infection status, alcohol use, and crack use. Given these relationships, current and future HIV prevention models targeting Black MSM should consider the potential importance of the roles of religiosity and spirituality in the lives of Black MSM to increase the efficacy of risk reduction interventions.


Asunto(s)
Negro o Afroamericano/estadística & datos numéricos , Infecciones por VIH/epidemiología , Conocimientos, Actitudes y Práctica en Salud , Homosexualidad Masculina/estadística & datos numéricos , Religión , Sexo Inseguro/estadística & datos numéricos , Adolescente , Adulto , Negro o Afroamericano/psicología , Anciano , Homosexualidad Masculina/psicología , Humanos , Masculino , Persona de Mediana Edad , Ciudad de Nueva York , Philadelphia , Factores de Riesgo , Asunción de Riesgos , Espiritualidad , Sexo Inseguro/psicología , Adulto Joven
12.
Hum Brain Mapp ; 36(10): 3749-3760, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26096844

RESUMEN

A comprehensive analysis of the effect of lesion in-painting on the estimation of cortical thickness using magnetic resonance imaging was performed on a large cohort of 918 relapsing-remitting multiple sclerosis patients who participated in a phase III multicenter clinical trial. An automatic lesion in-painting algorithm was developed and implemented. Cortical thickness was measured using the FreeSurfer pipeline with and without in-painting. The effect of in-painting was evaluated using FreeSurfer's paired analysis pipeline. Multivariate regression analysis was also performed with field strength and lesion load as additional factors. Overall, the estimated cortical thickness was different with in-painting than without. The effect of in-painting was observed to be region dependent, more significant in the left hemisphere compared to the right, was more prominent at 1.5 T relative to 3 T, and was greater at higher lesion volumes. Our results show that even for data acquired at 1.5 T in patients with high lesion load, the mean cortical thickness difference with and without in-painting is ∼2%. Based on these results, it appears that in-painting has only a small effect on the estimated regional and global cortical thickness. Hum Brain Mapp 36:3749-3760, 2015. © 2015 Wiley Periodicals, Inc.


Asunto(s)
Corteza Cerebral/patología , Procesamiento de Imagen Asistido por Computador/métodos , Imagen por Resonancia Magnética/métodos , Esclerosis Múltiple/patología , Adolescente , Adulto , Algoritmos , Estudios de Cohortes , Método Doble Ciego , Campos Electromagnéticos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Esclerosis Múltiple Recurrente-Remitente/patología , Análisis Multivariante , Adulto Joven
13.
Ann Neurol ; 73(3): 327-40, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23424159

RESUMEN

OBJECTIVE: A double-blind, randomized, controlled study was undertaken to determine whether combined use of interferon ß-1a (IFN) 30 µg intramuscularly weekly and glatiramer acetate (GA) 20 mg daily is more efficacious than either agent alone in relapsing-remitting multiple sclerosis. METHODS: A total of 1,008 participants were randomized and followed until the last participant enrolled completed 3 years. The primary endpoint was reduction in annualized relapse rate utilizing a strict definition of relapse. Secondary outcomes included time to confirmed disability, Multiple Sclerosis Functional Composite (MSFC) score, and magnetic resonance imaging (MRI) metrics. RESULTS: Combination IFN+GA was not superior to the better of the single agents (GA) in risk of relapse. Both the combination therapy and GA were significantly better than IFN in reducing the risk of relapse. The combination was not better than either agent alone in lessening confirmed Expanded Disability Status Scale progression or change in MSFC over 36 months. The combination was superior to either agent alone in reducing new lesion activity and accumulation of total lesion volumes. In a post hoc analysis, combination therapy resulted in a higher proportion of participants attaining disease activity-free status (DAFS) compared to either single arm, driven by the MRI results. INTERPRETATION: Combining the 2 most commonly prescribed therapies for multiple sclerosis did not produce a significant clinical benefit over 3 years. An effect was seen on some MRI metrics. In a test of comparative efficacy, GA was superior to IFN in reducing the risk of exacerbation. The extension phase for CombiRx will address whether the observed differences in MRI and DAFS findings predict later clinical differences.


Asunto(s)
Factores Inmunológicos/uso terapéutico , Interferón beta/uso terapéutico , Esclerosis Múltiple/tratamiento farmacológico , Péptidos/uso terapéutico , Adolescente , Adulto , Análisis de Varianza , Estudios de Casos y Controles , Evaluación de la Discapacidad , Método Doble Ciego , Quimioterapia Combinada , Femenino , Acetato de Glatiramer , Humanos , Estudios Longitudinales , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Prevención Secundaria , Resultado del Tratamiento , Adulto Joven
14.
Arthritis Rheum ; 65(8): 1985-94, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23686414

RESUMEN

OBJECTIVE: Methotrexate (MTX) taken as monotherapy is recommended as the initial disease-modifying antirheumatic drug for rheumatoid arthritis (RA). The purpose of this study was to examine outcomes of a blinded trial of initial MTX monotherapy with the option to step-up to combination therapy as compared to immediate combination therapy in patients with early, poor-prognosis RA. METHODS: In the Treatment of Early Rheumatoid Arthritis (TEAR) trial, 755 participants with early, poor-prognosis RA were randomized to receive MTX monotherapy or combination therapy (MTX plus etanercept or MTX plus sulfasalazine plus hydroxychloroquine). Participants randomized to receive MTX monotherapy stepped-up to combination therapy at 24 weeks if the Disease Activity Score in 28 joints using the erythrocyte sedimentation rate (DAS28-ESR) was ≥3.2. RESULTS: Attrition at 24 weeks was similar in the MTX monotherapy and combination groups. Of the 370 evaluable participants in the initial MTX group, 28% achieved low levels of disease activity and did not step-up to combination therapy (MTX monotherapy group). The mean ± SD DAS28-ESR in participants continuing to take MTX monotherapy at week 102 was 2.7 ± 1.2, which is similar to that in participants who were randomized to immediate combination therapy (2.9 ± 1.2). Participants who received MTX monotherapy had less radiographic progression at week 102 as compared to those who received immediate combination therapy (mean ± SD change in modified Sharp score 0.2 ± 1.1 versus 1.1 ± 6.4). Participants assigned to initial MTX who required step-up to combination therapy at 24 weeks (72%) demonstrated similar DAS28-ESR values (3.5 ± 1.3 versus 3.2 ± 1.3 at week 48) and radiographic progression (change in modified Sharp score 1.2 ± 4.1 versus 1.1 ± 6.4 at week 102) as those assigned to immediate combination therapy. The results for either of the immediate combination approaches, whether triple therapy or MTX plus etanercept, were similar. CONCLUSION: These results in patients with early, poor prognosis RA validate the strategy of starting with MTX monotherapy. This study is the first to demonstrate in a blinded trial that initial MTX monotherapy with the option to step-up to combination therapy results in similar outcomes to immediate combination therapy. Approximately 30% of patients will not need combination therapy, and the 70% who will need it are clinically and radiographically indistinguishable from those who were randomized to receive immediate combination therapy.


Asunto(s)
Antirreumáticos/uso terapéutico , Artritis Reumatoide/tratamiento farmacológico , Metotrexato/uso terapéutico , Artritis Reumatoide/diagnóstico , Progresión de la Enfermedad , Método Doble Ciego , Quimioterapia Combinada , Etanercept , Femenino , Estado de Salud , Humanos , Hidroxicloroquina/uso terapéutico , Inmunoglobulina G/uso terapéutico , Articulaciones/patología , Articulaciones/fisiopatología , Masculino , Persona de Mediana Edad , Pronóstico , Receptores del Factor de Necrosis Tumoral/uso terapéutico , Índice de Severidad de la Enfermedad , Sulfasalazina/uso terapéutico , Factores de Tiempo , Resultado del Tratamiento
15.
Arthritis Rheum ; 65(6): 1430-8, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23460074

RESUMEN

OBJECTIVE: To study changes in lipid profiles at 24 weeks among patients with early rheumatoid arthritis (RA) participating in the Treatment of Early RA (TEAR) trial and randomized to receive methotrexate (MTX) plus etanercept, triple therapy (MTX plus sulfasalazine plus hydroxychloroquine), or aggressively titrated MTX monotherapy. METHODS: This TEAR substudy included 459 participants with biologic specimens. Serum levels of total cholesterol, low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol were measured at 0 and 24 weeks. RESULTS: At 24 weeks, there were statistically significant increases in mean cholesterol levels in the MTX plus etanercept, triple therapy, and MTX monotherapy arms. The observed increases were 31.4 mg/dl, 28.7 mg/dl, and 30 mg/dl in LDL cholesterol, 19.3 mg/dl, 22.3 mg/dl, and 20.6 mg/dl in HDL cholesterol, and 56.8 mg/dl, 53 mg/dl, and 57.3 mg/dl in total cholesterol (P < 0.0001 versus baseline for each comparison). There was a statistically significant decrease in the ratio of total cholesterol to HDL cholesterol at 24 weeks in all 3 treatment groups versus baseline. There was no difference in any lipid changes between the 3 treatment arms. After multivariable adjustment, change in C-reactive protein, but not the Disease Activity Score in 28 joints, was associated with change in LDL cholesterol (P = 0.03) and total cholesterol (P = 0.01). Baseline glucocorticoid use was associated with changes in HDL cholesterol (P = 0.03) and total cholesterol (P = 0.02). CONCLUSION: Levels of total cholesterol, LDL cholesterol, and HDL cholesterol increased comparably shortly after initiation of MTX plus etanercept, triple therapy, and MTX monotherapy among patients with early RA with active disease participating in a clinical trial. The clinical relevance of short-term changes in traditional lipids on cardiovascular outcomes remains to be determined.


Asunto(s)
Antirreumáticos/uso terapéutico , Artritis Reumatoide/tratamiento farmacológico , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Inmunoglobulina G/administración & dosificación , Inmunoglobulina G/uso terapéutico , Metotrexato/uso terapéutico , Receptores del Factor de Necrosis Tumoral/administración & dosificación , Receptores del Factor de Necrosis Tumoral/uso terapéutico , Adulto , Anciano , Antirreumáticos/administración & dosificación , Quimioterapia Combinada , Etanercept , Femenino , Humanos , Hidroxicloroquina/administración & dosificación , Hidroxicloroquina/uso terapéutico , Masculino , Metotrexato/administración & dosificación , Persona de Mediana Edad , Sulfasalazina/administración & dosificación , Sulfasalazina/uso terapéutico , Resultado del Tratamiento
16.
Clin Trials ; 11(2): 159-66, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24686106

RESUMEN

BACKGROUND: and purpose Participant recruitment is central to all clinical trials. Any delay in recruitment affects the completion and ultimate success of the trial. We report our experience with patient screening and randomization in CombiRx, which may inform the design of other trials. CombiRx was a multicenter, phase III, double-blind, randomized clinical trial comparing the combined use of interferon beta-1a and glatiramer acetate to either agent alone in patients with relapsing-remitting multiple sclerosis (RRMS). This trial was launched in January 2005 in 69 centers in the United States and Canada under a co-operative agreement with the National Institute of Neurological Disorders and Stroke (NINDS). The goal was to recruit 1000 patients over 1.5 years after a 6-month start-up period. Instead, the investigators required 4.25 years to enroll 1008 patients. METHODS: During this trial, we assessed the effectiveness of various recruitment strategies, utility of rescreening prior screen failures, and potential factors and strategies used in study conduct, research, and infrastructure, all of which affected recruitment of participants and ultimately time to completion of CombiRx. We particularly were interested in the variability in time to site initiation between academic centers and private practice sites. RESULTS: Physicians who were directly involved in the medical care of patients with RRMS were the primary source of patients recruited to CombiRx. A flexible study design that allowed for rescreening of the initial screen failures after a period of time was useful due to the relapsing/remitting course of the disease. Academic centers took longer to implement the trial than the private practice centers, but once sites were approved for enrollment, there was no important difference in the number of participants enrolled. LIMITATIONS: The CombiRx trial was conducted during a period when multiple new medications were being tested, thus affecting the pace of recruitment and limiting ability to generalize our experiences. However, the lessons we learned about process are relevant. CONCLUSION: Participants can be enrolled successfully in a clinical trial for RRMS, but factors affecting the time to achieve the requirements needed to start screening can be unpredictable and problematic. Prospective planning by the sponsors and investigators, use of central institutional review boards (IRBs), master trial agreements and secure remote desktop access to the trial database may expedite trial implementation and participant recruitment. A good scientific research question with flexible study design and active involvement of the clinicians are important factors driving recruitment. Clinical trials can be implemented successfully both in private practices and at academic centers, a consideration when selecting sites.


Asunto(s)
Adyuvantes Inmunológicos/uso terapéutico , Interferón beta/uso terapéutico , Estudios Multicéntricos como Asunto/métodos , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Selección de Paciente , Péptidos/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto/métodos , Ensayos Clínicos Fase III como Asunto/métodos , Método Doble Ciego , Quimioterapia Combinada , Acetato de Glatiramer , Humanos , Interferón beta-1a
17.
Contemp Clin Trials ; 143: 107584, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38821260

RESUMEN

BACKGROUND: Pilot trials indicate that both a low glycemic load (GL) diet and calorie restriction (CR) can be implemented successfully in people with multiple sclerosis (pMS) and may improve MS symptoms and physical function, but large randomized clinical trials (RCTs) have not yet been conducted. The purpose of this study is to test these interventions alone and in combination to determine their efficacy for improving clinical and patient reported outcomes (PROs) in pMS. METHODS: This 32-week, two-arm, RCT at two centers will randomly assign 100 adults with relapsing-remitting or secondary progressive MS to a low GL diet (n = 50) or a standard GL diet (n = 50). Both diet groups will complete two study phases: a eucaloric phase (16 weeks) and a CR phase (16 weeks). Groceries for the study meal plans will be delivered to participants' homes weekly. The primary outcome is physical function, measured by timed 25-ft walk test. Secondary outcomes are pain, fatigue, mood, and anxiety. DISCUSSION: This will be the most rigorous intervention trial to date of a low GL diet and CR in adults with MS, and among the first to assess the impact of intentional weight loss on MS symptoms. Results will provide valuable insight for recommending dietary change, weight loss, or both to adults with MS. These non-drug interventions pose few risks and have potential to yield significant improvements in MS symptoms. TRIAL REGISTRATION ID: NCT05327322.


Asunto(s)
Restricción Calórica , Carga Glucémica , Humanos , Restricción Calórica/métodos , Adulto , Femenino , Esclerosis Múltiple Crónica Progresiva/dietoterapia , Masculino , Esclerosis Múltiple Recurrente-Remitente/dietoterapia , Fatiga , Persona de Mediana Edad , Esclerosis Múltiple/dietoterapia , Afecto , Ansiedad
18.
Arthritis Rheum ; 64(9): 2824-35, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22508468

RESUMEN

OBJECTIVE: To assess whether it is better to intensively treat all patients with early rheumatoid arthritis (RA) using combinations of drugs or to reserve this approach for patients who do not have an appropriate response (as determined by a Disease Activity Score in 28 joints using the erythrocyte sedimentation rate [DAS28-ESR] of ≥ 3.2 at week 24) to methotrexate (MTX) monotherapy, and to assess whether combination therapy with MTX plus etanercept is superior to the combination of MTX plus sulfasalazine plus hydroxychloroquine. METHODS: The Treatment of Early Aggressive Rheumatoid Arthritis (TEAR) study is a 2-year, randomized, double-blind trial. A 2 × 2 factorial design was used to randomly assign subjects to 1 of 4 treatment arms: immediate treatment with MTX plus etanercept, immediate oral triple therapy (MTX plus sulfasalazine plus hydroxychloroquine), or step-up from MTX monotherapy to one of the combination therapies (MTX plus etanercept or MTX plus sulfasalazine plus hydroxychloroquine) at week 24 if the DAS28-ESR was ≥ 3.2. All treatment arms included matching placebos. The primary outcome was an observed-group analysis of DAS28-ESR values from week 48 to week 102. RESULTS: At week 24 (beginning of the step-up period), subjects in the 2 immediate-treatment groups demonstrated a greater reduction in the DAS28-ESR compared with those in the 2 step-up groups (3.6 versus 4.2; P < 0.0001); no differences between the combination-therapy regimens were observed. Between week 48 and week 102, subjects randomized to the step-up arms had a DAS28-ESR clinical response that was not different from that of subjects who initially received combination therapy, regardless of the treatment arm. There was no significant difference in the DAS28-ESR between subjects randomized to oral triple therapy and those randomized to receive MTX plus etanercept. By week 102, there was a statistically significant difference in the change in radiographic measurements from baseline between the group receiving MTX plus etanercept and the group receiving oral triple therapy (0.64 versus 1.69; P = 0.047). CONCLUSION: There were no differences in the mean DAS28-ESR during weeks 48-102 between subjects randomized to receive MTX plus etanercept and those randomized to triple therapy, regardless of whether they received immediate combination treatment or step-up from MTX monotherapy. At 102 weeks, immediate combination treatment with either strategy was more effective than MTX monotherapy prior to the initiation of step-up therapy. Initial use of MTX monotherapy with the addition of sulfasalazine plus hydroxychloroquine (or etanercept, if necessary, after 6 months) is a reasonable therapeutic strategy for patients with early RA. Treatment with the combination of MTX plus etanercept resulted in a statistically significant radiographic benefit compared with oral triple therapy.


Asunto(s)
Antirreumáticos/uso terapéutico , Artritis Reumatoide/tratamiento farmacológico , Inmunoglobulina G/administración & dosificación , Metotrexato/administración & dosificación , Receptores del Factor de Necrosis Tumoral/administración & dosificación , Administración Oral , Adulto , Anciano , Antirreumáticos/administración & dosificación , Artritis Reumatoide/diagnóstico por imagen , Sedimentación Sanguínea , Método Doble Ciego , Esquema de Medicación , Quimioterapia Combinada , Etanercept , Femenino , Humanos , Hidroxicloroquina/administración & dosificación , Inmunoglobulina G/uso terapéutico , Masculino , Metotrexato/uso terapéutico , Persona de Mediana Edad , Radiografía , Receptores del Factor de Necrosis Tumoral/uso terapéutico , Índice de Severidad de la Enfermedad , Sulfasalazina/administración & dosificación , Resultado del Tratamiento
19.
Urology ; 163: 69-75, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-34852248

RESUMEN

OBJECTIVE: To determine the role of race in surgical outcomes of and complications after urethroplasty. METHODS: A single institution, retrospective review was conducted from 2011 to 2019 on male patients ≥18 years of age who underwent urethroplasty. Exclusion criteria included previous urethral cancer, lack of follow up, or revision urethroplasty. Failure of urethroplasty was defined as requiring revision surgery or recurrence on imaging or cystoscopy. Risk factors for recurrence were determined using descriptive statistics, Wilcoxon comparisons, and multivariate logistic regression. RESULTS: Three hundred and seven patients were identified with 234 patients meeting inclusion criteria. 63.2% identified as White/Caucasian (CA), 32.5% Black/African American (AA), and 4.3% other race. Mean age was 49.4 years. Between CA and AA patients, there was no difference in mean age, body mass index, smoking status, prior urethroplasty, or prior dilation/DVIU. CAs were more likely to have a fossa navicularis stricture compared to AAs (P = .0094), but there were no significant differences in bulbar, penile, or posterior stricture rates (all P >.05) or length (P = .32). The overall stricture recurrence rate was 15.8% with a median of 242 days to recurrence and no significant difference by race for either outcome (P = .83, P = .64). The only predictor of stricture recurrence was prior dilation/DVIU (P = .0404, OR 2.3, 95% CI 1.0, 5.6). Overall complication rate was 17.5%, with no difference between CA and AAs rates (P = .83) or complication type (P = .62). CONCLUSION: There was no significant difference in the rate of surgical failure for urethral stricture repair based on race. The only predictor of surgical failure was having a prior urethral dilation/DVIU.


Asunto(s)
Estrechez Uretral , Constricción Patológica/cirugía , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/cirugía , Recurrencia , Estudios Retrospectivos , Resultado del Tratamiento , Uretra/cirugía , Estrechez Uretral/etiología , Estrechez Uretral/cirugía , Procedimientos Quirúrgicos Urológicos Masculinos/efectos adversos , Procedimientos Quirúrgicos Urológicos Masculinos/métodos
20.
Am J Hypertens ; 35(2): 182-191, 2022 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-34528669

RESUMEN

BACKGROUND: Adherence to study medications is crucial to evaluating treatment effects in clinical trials. To assess whether in the SPRINT trial, adherence and cardiovascular outcomes are associated regardless of intervention assignment. METHODS: This study included 9,361 participants aged ≥50 years, recruited from 102 clinics. Participants were randomized to a Standard Treatment Group (targeted systolic blood pressure [SBP] <140 mm Hg) or an Intensive Treatment Group (targeted SBP <120 mm Hg) and followed for incident cardiovascular events until the study was halted early for benefit. The 8-item Morisky Medication Adherence Scale (MMAS-8) was administered at baseline, and at the 12- and 48-month (or close out) visit. RESULTS: Adjusting for covariates, there was no association between the baseline 8-item MMAS-8 and the likelihood of the primary composite endpoint, any of the secondary endpoints, or blood pressure (BP) control. Low adherence was associated with a higher body mass index, SBP, diastolic BP, and Patient Health Questionnaire, and high adherence was associated with a higher Montreal Cognitive Assessment. There was no difference in the MMAS-8 over time by treatment arm assignment. For the primary outcome (a composite of myocardial infarction, other acute coronary syndromes, stroke, heart failure, or death from cardiovascular causes), baseline odds ratios (95% confidence intervals) for the Low vs. Medium and vs. High; and, for Medium vs. High MMAS-8 were 1.02 (0.82-1.28), 1.07 (0.85-1.34), and 1.05 (0.88-1.250). CONCLUSIONS: In SPRINT, medication adherence as measured using the MMAS-8 was not associated with outcomes or BP control.


Asunto(s)
Hipertensión , Infarto del Miocardio , Antihipertensivos/farmacología , Antihipertensivos/uso terapéutico , Presión Sanguínea , Humanos , Hipertensión/diagnóstico , Hipertensión/tratamiento farmacológico , Hipertensión/epidemiología , Cumplimiento de la Medicación , Infarto del Miocardio/tratamiento farmacológico
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