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1.
J Relig Health ; 60(4): 2646-2661, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33575892

RESUMEN

Individuals with cystic fibrosis (CF) face a challenging disease, and depression is a significant concern. Many patients draw on religious/spiritual resources to assist them in managing the demands of chronic illness; however, these coping efforts rarely have been evaluated among adults with CF. This longitudinal study examined relationships between distinct types of positive and negative religious/spiritual coping at baseline (assessed with the RCOPE) and depression screening outcomes 12 month later (assessed with the Hospital Anxiety and Depression Scale). In logistic regression analyses controlling for disease severity (FEV1% predicted), lower likelihood of depression caseness at 12 months was predicted by higher general religiousness at baseline, greater use of benevolent religious reappraisal coping, greater use of spiritual connection coping, and lower spiritual discontent. Results suggest that distinct aspects religious/spiritual coping have differential associations with subsequent depression outcomes. Findings extend prior research to an important, understudied medical population, and address a clinically meaningful outcome.


Asunto(s)
Fibrosis Quística , Depresión , Adaptación Psicológica , Adulto , Fibrosis Quística/complicaciones , Humanos , Estudios Longitudinales , Espiritualidad
2.
J Behav Med ; 43(4): 596-604, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-31254218

RESUMEN

Individuals with cystic fibrosis (CF) are confronted by a range of difficult physical and psychosocial sequelae. Gratitude has drawn growing attention as a psychosocial resource, but it has yet to be examined among adults with CF. The current investigation evaluated longitudinal associations between trait gratitude and subsequent outcomes from depression screening 12 months later, adjusting for disease severity (FEV1% predicted) and other significant clinical or demographic covariates. Participants were 69 adult CF patients recruited from a regional adult treatment center. They completed a validated measure of gratitude (Gratitude Questionnaire-6) at baseline and a screening measure of depression (Hospital Anxiety and Depression Scale) at 12-month follow-up. In a logistic regression analysis controlling for disease severity, higher levels of baseline gratitude were associated with reduced likelihood of depression caseness at 12 months (OR .83, 95% CI .73-.91, p = .001). Gratitude remained predictive after adjusting for other psychosocial resource variables (i.e., perceived social support and positive reframing coping). Findings offer an initial indication of the potential salutary role of dispositional gratitude in an understudied clinical population.


Asunto(s)
Fibrosis Quística/psicología , Depresión/epidemiología , Adaptación Psicológica , Adulto , Ansiedad/psicología , Fibrosis Quística/diagnóstico , Fibrosis Quística/epidemiología , Depresión/psicología , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Apoyo Social , Encuestas y Cuestionarios
3.
Am J Gastroenterol ; 111(11): 1630-1636, 2016 11.
Artículo en Inglés | MEDLINE | ID: mdl-27481306

RESUMEN

OBJECTIVES: Offering financial incentives to promote or "nudge" participation in cancer screening programs, particularly among vulnerable populations who traditionally have lower rates of screening, has been suggested as a strategy to enhance screening uptake. However, effectiveness of such practices has not been established. Our aim was to determine whether offering small financial incentives would increase colorectal cancer (CRC) screening completion in a low-income, uninsured population. METHODS: We conducted a randomized, comparative effectiveness trial among primary care patients, aged 50-64 years, not up-to-date with CRC screening served by a large, safety net health system in Fort Worth, Texas. Patients were randomly assigned to mailed fecal immunochemical test (FIT) outreach (n=6,565), outreach plus a $5 incentive (n=1,000), or outreach plus a $10 incentive (n=1,000). Outreach included reminder phone calls and navigation to promote diagnostic colonoscopy completion for patients with abnormal FIT. Primary outcome was FIT completion within 1 year, assessed using an intent-to-screen analysis. RESULTS: FIT completion was 36.9% with vs. 36.2% without any financial incentive (P=0.60) and was also not statistically different for the $10 incentive (34.6%, P=0.32 vs. no incentive) or $5 incentive (39.2%, P=0.07 vs. no incentive) groups. Results did not differ substantially when stratified by age, sex, race/ethnicity, or neighborhood poverty rate. Median time to FIT return also did not differ across groups. CONCLUSIONS: Financial incentives, in the amount of $5 or $10 offered in exchange for responding to mailed invitation to complete FIT, do not impact CRC screening completion.


Asunto(s)
Neoplasias Colorrectales/diagnóstico , Detección Precoz del Cáncer/estadística & datos numéricos , Pacientes no Asegurados , Motivación , Pobreza , Colonoscopía/estadística & datos numéricos , Heces/química , Femenino , Humanos , Inmunoquímica/estadística & datos numéricos , Masculino , Persona de Mediana Edad
4.
Cureus ; 15(9): e45826, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37876398

RESUMEN

Although widespread, the burden of disease presented by chronic kidney disease (CKD) is not equally distributed among all demographics. Examining the social determinants of health (SDOH) that relate to barriers to renal dialysis care in CKD can help to prevent future disparities. There has not been a study addressing the social factors that create barriers to care for ethnic minority patients with CKD. The aim of this scoping review is to address the SDOH that affects access to renal dialysis for ethnic minority patients in the United States. This study was based on the protocol published by the Joanna Briggs Institute. A total of 349 studies were identified from PubMed, EBSCOhost, and Embase. Each article was screened against population, concept, and context criteria in order to be considered for inclusion. The population was determined to be adults of all genders from underrepresented minority populations. The selected concept was SDOH. The context of this study was the United States population. From the articles selected by the search criteria, neighborhood of residence, mental health care access, glomerular filtration rate (GFR) methodology, socioeconomic status (SES), language barriers, immigration status, and military rank were identified as SDOH affecting access to renal dialysis care. While this study identified four social determinants, more research is needed for the investigation of other possible SDOH contributing to disparities related to CKD and access to renal dialysis care.

5.
Ann Pharmacother ; 45(9): 1061-6, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21852592

RESUMEN

BACKGROUND: Constipation is prevalent in the cystic fibrosis (CF) population and yet there are few data demonstrating the effectiveness of currently used treatments. Lubiprostone is a laxative that works by activating the type 2 chloride channel in the gastrointestinal tract and thus has the potential to be especially effective for constipation associated with CF. OBJECTIVE: To evaluate the effectiveness of lubiprostone for the treatment of constipation in adults with CF. METHODS: In this pilot study, participants acted as their own controls and comparisons were made between run-in and treatment periods. During the 2-week run-in period, participants continued their usual treatment for constipation; during the 4-week treatment period, participants received lubiprostone 24 µg twice daily. Efficacy outcomes included spontaneous bowel movement frequency, Bristol Stool Scale scores, and Patient Assessment of Constipation Symptoms (PAC-SYM) survey scores. Outcomes were assessed during both the run-in and treatment periods (0, 2, and 4 weeks of treatment). Safety outcomes included spirometry, body weight, and serum chemistry. RESULTS: Seven participants completed the study. Mean (SD) baseline forced expiratory volume in 1 second was 83.0% (9.4) of predicted and body mass index was 24.0 (2.8) kg/m², indicating an overall healthy, well-nourished group of adults with CF. Lubiprostone improved overall symptoms of constipation as measured by PAC-SYM survey scores (1.18 [0.56], 0.54 [0.27], and 0.44 [0.36] at 0, 2, and 4 weeks, respectively; p < 0.001). Spontaneous bowel movement frequency and Bristol Stool Scale scores were not statistically significantly different between periods. There were no differences in safety measures. Transient chest tightness and shortness of breath were reported by 2 separate participants, although neither participant withdrew due to these adverse effects. CONCLUSIONS: Lubiprostone may be an effective option for the treatment of constipation in adults with CF.


Asunto(s)
Alprostadil/análogos & derivados , Estreñimiento/tratamiento farmacológico , Fibrosis Quística/complicaciones , Adulto , Alprostadil/efectos adversos , Alprostadil/uso terapéutico , Canales de Cloruro CLC-2 , Canales de Cloruro/efectos de los fármacos , Canales de Cloruro/metabolismo , Estreñimiento/etiología , Femenino , Humanos , Lubiprostona , Masculino , Proyectos Piloto , Resultado del Tratamiento , Adulto Joven
6.
Clin Nutr ; 40(6): 3859-3867, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-34130033

RESUMEN

BACKGROUND & AIMS: Increasing dietary intake of n-3 EPA+DHA and lowering dietary n-6 LA is under investigation as a therapeutic diet for improving chronic pain syndromes as well as other health outcomes. Herein we describe the diet methodology used to modulate intake of n-3 and n-6 PUFA in a free living migraine headache population and report on nutrient intake, BMI and diet acceptability achieved at week 16 of the intensive diet intervention and week 22 follow-up time-point. METHODS: A total of 178 participants were randomized and began one of three diet interventions: 1) a high n-3 PUFA, average n-6 PUFA (H3) diet targeting 1500 mg EPA+DHA/day and 7% of energy (en%) from n-6 linoleic acid (LA), 2) a high-n-3 PUFA, low-n-6 PUFA (H3L6) targeting 1500 mg EPA+DHA/day and <1.8 en% n-6 LA or 3) a Control diet with typical American intakes of both EPA+DHA (<150 mg/day) and 7 en% from n-6 LA. Methods used to achieve diet change to week 16 include diet education, diet counseling, supply of specially prepared foods, self-monitoring and access to online diet materials. Only study oils and website materials were provided for the follow-up week 16 to week 22 periods. Diet adherence was assessed by multiple 24 h recalls administered throughout the trial. Diet acceptability was assessed in a subset of participants at 4 time points by questionnaire. RESULTS: At week 16 H3 and H3L6 diet groups significantly increased median n-3 EPA+DHA intake from 48 mg/2000 kcals at baseline to 1484 mg/2000 kcals (p < 0.0001) and from 44 mg/2000 kcals to 1341 mg/2000 kcals (p < 0.0001), respectively. In the Control group, EPA+DHA intake remained below the typical American intake with baseline median at 60 mg/2000 kcals and 80 mg/2000 kcals (p = 0.6) at week 16. As desired, LA intake was maintained in the H3 and Control group with baseline median of 6.5 en% to 7.1 en% (p = 0.4) at week 16 and from 6.5 en% to 6.8 en% (p = 1.0) at week 16, respectively. In the H3L6 group, n-6 LA decreased from 6.3 en% at baseline to 3.2 en% (p < 0.0001) at week 16. There were no significant changes in BMI or diet acceptability throughout the trial or between diet groups. CONCLUSIONS: We find this diet method to be acceptable to research participants and successful in altering dietary n-3 EPA+DHA with and without concurrent decreases in n-6 LA. If n-6 LA of less than 3 en% is desired, additional techniques to limit LA may need to be employed.


Asunto(s)
Dolor Crónico/dietoterapia , Dieta , Ácidos Docosahexaenoicos/administración & dosificación , Ácidos Grasos Omega-3/administración & dosificación , Ácidos Grasos Omega-6/administración & dosificación , Adulto , Método Doble Ciego , Femenino , Humanos , Masculino , Ensayos Clínicos Controlados Aleatorios como Asunto , Proyectos de Investigación
7.
Ann Pharmacother ; 44(3): 577-81, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20179256

RESUMEN

OBJECTIVE: To describe the use of lubiprostone for constipation in 3 adults with cystic fibrosis (CF). CASE SUMMARY: This case series describes the use of lubiprostone for the treatment of constipation in 3 adults with CF (mean +/- SD length of therapy 17.3 +/- 1.5 mo). All 3 patients were prescribed lubiprostone 24 microg twice daily after hospitalization for treatment of intestinal obstruction. Patient 1 continues on chronic polyethylene glycol (PEG) 3350 and lubiprostone and has not had a recurrence of obstruction. Patient 2 requires aggressive chronic therapy with PEG 3350, lubiprostone, and methylnaltrexone. She has had 1 recurrence of obstruction. Patient 3 continues with lubiprostone taken several times per week with good control of constipation and no recurrence of obstruction to date. The adverse effect profile has been tolerable in all 3 patients. DISCUSSION: CF is caused by a genetic mutation resulting in a dysfunctional or absent CF transmembrane conductance regulator that normally functions as a chloride channel. This results in viscous secretions in multiple organ systems including the lungs and intestinal tract. Accumulation of viscous intestinal contents contributes to constipation, which is common among adults with CF and can sometimes lead to intestinal obstruction. Lubiprostone is indicated for chronic constipation and works by activating type 2 chloride channels (ClC-2) in the intestinal tract. Because it utilizes an alternate chloride channel, lubiprostone may be especially effective for constipation in patients with CF. CONCLUSIONS: Lubiprostone provides an additional option for the treatment of constipation in adults with CF. Its use in the CF population deserves further study.


Asunto(s)
Alprostadil/análogos & derivados , Estreñimiento/tratamiento farmacológico , Fibrosis Quística/complicaciones , Adulto , Alprostadil/efectos adversos , Alprostadil/farmacología , Alprostadil/uso terapéutico , Canales de Cloruro/efectos de los fármacos , Canales de Cloruro/metabolismo , Estreñimiento/etiología , Fibrosis Quística/genética , Fibrosis Quística/fisiopatología , Regulador de Conductancia de Transmembrana de Fibrosis Quística/genética , Regulador de Conductancia de Transmembrana de Fibrosis Quística/metabolismo , Femenino , Humanos , Obstrucción Intestinal/tratamiento farmacológico , Obstrucción Intestinal/etiología , Lubiprostona , Masculino , Prevención Secundaria , Resultado del Tratamiento , Adulto Joven
8.
Respir Care ; 64(7): 778-785, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30890632

RESUMEN

BACKGROUND: Airway clearance therapy (ACT) is a core component of daily treatment for cystic fibrosis (CF). However, surprisingly little is known about sustained or persistent use of ACT over time among adults with CF. This longitudinal study examined persistent adherence to ACT over 12 months and its modifiable predictors, drawing on aspects of Social Cognitive Theory and the Theory of Planned Behavior. METHODS: Subjects were drawn from a regional CF center in the southern United States. Predictor variables evaluated at baseline included self-efficacy for ACT (ie, self-confidence in overcoming barriers), outcome expectations (ie, perceived necessity of ACT and concerns about its disruptive effects), and subjective norms (ie, perceptions of being influenced by others). The Cystic Fibrosis Treatment Questionnaire (CFTQ) was used to assess self-reported adherence to ACT at baseline, at 6 months, and at 12 months. RESULTS: The mean age of subjects was 27.2 ± 9.1 y, and mean FEV1% predicted was 65.5 ± 24.8. Forty-six percent of subjects reported persistent use of ACT (classified as adherent at all assessment periods). In bivariate analyses, all social cognitive predictor variables assessed at baseline were significantly related to persistent adherence (all P < .03), except subjective norms. In logistic regression analyses that modeled the effects of these predictors simultaneously while controlling for FEV1%, fewer baseline concerns about ACT (odds ratio = 0.82, 95% CI 0.69-0.99) and greater self-efficacy (odds ratio = 1.09, 95% CI 1.01-1.18) remained significant independent predictors. CONCLUSIONS: This longitudinal study addresses an important gap in the literature regarding adherence to ACT over time (12 mo) in a routine clinical setting. Persistent adherence was problematic. As anticipated, social cognitive variables (self-confidence and perceived concerns) predicted self-reported persistence, and these may represent practical targets for intervention.


Asunto(s)
Manejo de la Vía Aérea , Fibrosis Quística , Conductas Relacionadas con la Salud/fisiología , Cooperación del Paciente/psicología , Autoeficacia , Adulto , Manejo de la Vía Aérea/métodos , Manejo de la Vía Aérea/psicología , Fibrosis Quística/epidemiología , Fibrosis Quística/fisiopatología , Fibrosis Quística/terapia , Femenino , Volumen Espiratorio Forzado , Humanos , Estudios Longitudinales , Masculino , Evaluación del Resultado de la Atención al Paciente , Pruebas de Función Respiratoria/métodos , Pruebas de Función Respiratoria/estadística & datos numéricos , Estados Unidos/epidemiología
9.
Metabolism ; 69: 120-129, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28285641

RESUMEN

BACKGROUND: The development of effective nutritional strategies in support of muscle growth for patients with chronic obstructive pulmonary disease (COPD) remains challenging. Dietary essential amino acids (EAAs) are the main driver of postprandial net protein anabolism. In agreement, EAA supplements in healthy older adults are more effective than supplements with the composition of complete proteins. In patients with COPD it is still unknown whether complete protein supplements can be substituted with only EAAs, and whether they are as effective as in healthy older adults. METHODS: According to a double-blind randomized crossover design, we examined in 23 patients with moderate to very severe COPD (age: 65±2 years, FEV1: 40±2% of predicted) and 19 healthy age-matched subjects (age: 64±2 years), whether a free EAA mixture with a high proportion (40%) of leucine (EAA mixture) stimulated whole body net protein gain more than a similar mixture of balanced free EAAs and non-EAAs as present in whey protein (TAA mixture). Whole body net protein gain and splanchnic extraction of phenylalanine (PHE) were assessed by continuous IV infusion of L-[ring-2H5]-PHE and L-[ring-2H2]-tyrosine, and enteral intake of L-[15N]-PHE (added to the mixtures). RESULTS: Besides an excellent positive linear relationship between PHE intake and net protein gain in both groups (r=0.84-0.91, P<0.001), net protein gain was 42% higher in healthy controls and 49% higher in COPD patients after intake of the EAA mixture compared to the TAA mixture (P<0.0001). These findings could not be attributed to the high LEU content, as in both groups net protein gain per gram EAA intake was lower for the EAA mixture (P<0.0001). Net protein gain was higher in COPD patients for both mixtures due to a 40% lower splanchnic extraction (P<0.0001), but was similarly related to dietary PHE (i.e. EAA) plasma appearance. CONCLUSIONS: In COPD patients, similarly to healthy older adults, free EAA supplements stimulate whole body protein anabolism more than free amino acid supplements with the composition of complete proteins. Therefore, free EAA supplements may aid in the prevention and treatment of muscle wasting in this patient population.


Asunto(s)
Aminoácidos Esenciales/uso terapéutico , Suplementos Dietéticos , Biosíntesis de Proteínas/efectos de los fármacos , Enfermedad Pulmonar Obstructiva Crónica/metabolismo , Anciano , Aminoácidos/sangre , Estudios Cruzados , Método Doble Ciego , Femenino , Volumen Espiratorio Forzado , Voluntarios Sanos , Humanos , Insulina/metabolismo , Leucina/uso terapéutico , Masculino , Persona de Mediana Edad , Fenilalanina/metabolismo , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Proteína de Suero de Leche/metabolismo
11.
Adv Respir Med ; 84(6): 316-323, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-28009031

RESUMEN

INTRODUCTION: Cystic fibrosis (CF) is a life-limiting multisystemic genetic disease. Patients with CF have a high rate of hospitalization. We attempt to ascertain national trends of inpatient stays, prevalence of various co-morbidities during hospitalizations, outcomes and discharge disposition among CF patients. MATERIAL AND METHODS: Data from the National Inpatient Sample (NIS) was used to identify all hospitalizations of patients with CF and their demographic characteristics from 2003 to 2013. Prevalence and effects of various co-morbidities like acute kidney injury (AKI) were determined. Detailed sub-group analysis was performed for individuals with lung transplant. RESULTS: The annual rate of hospitalization per 1,000 CF patients in the U.S. increased from 994 in 2003 to 1,072 in 2013. The overall in-hospital mortality was 1.5%; median age at death was 27 years. In-hospital mortality trended down from 1.9% to 1.2% from 2003 to 2013 (p-value for trend: 0.002). The median length of stay was 7 days. The prevalence of chronic liver disease and AKI was 3.7% and 3.8% respectively. Multivariate adjusted odds of mortality for AKI was 1.74 (95% CI 1.57-1.93, p < 0.001). Patients with prior lung transplantation accounted for 6.5% of hospitalizations. These patients had a significantly higher prevalence of AKI. CONCLUSIONS: The annual hospitalization rates of CF patients is increasing over the years. Females with CF constitute a higher proportion of hospitalized patients despite a higher male preponderance of males with CF in the community. AKI is associated with a significantly higher in-hospital mortality. Lung transplant recipients have a higher prevalence of AKI and mortality.

12.
Am J Clin Nutr ; 103(6): 1458-64, 2016 06.
Artículo en Inglés | MEDLINE | ID: mdl-27146652

RESUMEN

BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a condition characterized by systemic low-grade inflammation that could increase the production of nitric oxide (NO), of which arginine is the sole precursor. Arginine is derived from the breakdown of protein and through the conversion of citrulline to arginine (de novo arginine production). OBJECTIVE: Our objective was to study whole-body arginine and citrulline and related metabolism in stable COPD patients. DESIGN: With the use of stable isotope methodology, we studied whole-body arginine and citrulline rates of appearance, de novo arginine (citrulline-to-arginine flux) and NO (arginine-to-citrulline flux) production, protein synthesis and breakdown rates, and plasma amino acid concentrations in a heterogeneous group of patients with moderate-to-severe COPD [n = 23, mean ± SE age: 65 ± 2 y, forced expiratory volume in 1 s (FEV1): 40% ± 2% of predicted], and a group of healthy older adults (n = 19, mean ± SE age: 64 ± 2 y, FEV1: 95% ± 4% of predicted). RESULTS: Although plasma arginine and citrulline concentrations were comparable between COPD patients and controls, whole-body arginine (P = 0.015) and citrulline (P = 0.026) rates of appearance were higher in COPD patients and related to a 57% greater de novo arginine production (P < 0.0001). Despite a higher whole-body arginine clearance in COPD patients (P < 0.0001), we found no difference in NO production. CONCLUSION: In stable patients with moderate-to-severe COPD, endogenous arginine production is upregulated to support a higher arginine utilization that is unrelated to whole-body NO production. This trial was registered at clinicaltrials.gov as NCT01173354 and NCT01172314.


Asunto(s)
Arginina/metabolismo , Enfermedad Pulmonar Obstructiva Crónica/metabolismo , Anciano , Aminoácidos/sangre , Arginina/sangre , Citrulina/sangre , Citrulina/metabolismo , Femenino , Volumen Espiratorio Forzado , Humanos , Cinética , Pulmón/fisiopatología , Masculino , Persona de Mediana Edad , Óxido Nítrico/biosíntesis , Biosíntesis de Proteínas , Proteínas/metabolismo , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología
13.
Chest ; 127(1): 335-71, 2005 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-15654001

RESUMEN

BACKGROUND: The proliferation of inhaler devices has resulted in a confusing number of choices for clinicians who are selecting a delivery device for aerosol therapy. There are advantages and disadvantages associated with each device category. Evidence-based guidelines for the selection of the appropriate aerosol delivery device in specific clinical settings are needed. AIM: (1) To compare the efficacy and adverse effects of treatment using nebulizers vs pressurized metered-dose inhalers (MDIs) with or without a spacer/holding chamber vs dry powder inhalers (DPIs) as delivery systems for beta-agonists, anticholinergic agents, and corticosteroids for several commonly encountered clinical settings and patient populations, and (2) to provide recommendations to clinicians to aid them in selecting a particular aerosol delivery device for their patients. METHODS: A systematic review of pertinent randomized, controlled clinical trials (RCTs) was undertaken using MEDLINE, EmBase, and the Cochrane Library databases. A broad search strategy was chosen, combining terms related to aerosol devices or drugs with the diseases of interest in various patient groups and clinical settings. Only RCTs in which the same drug was administered with different devices were included. RCTs (394 trials) assessing inhaled corticosteroid, beta2-agonist, and anticholinergic agents delivered by an MDI, an MDI with a spacer/holding chamber, a nebulizer, or a DPI were identified for the years 1982 to 2001. A total of 254 outcomes were tabulated. Of the 131 studies that met the eligibility criteria, only 59 (primarily those that tested beta2-agonists) proved to have useable data. RESULTS: None of the pooled metaanalyses showed a significant difference between devices in any efficacy outcome in any patient group for each of the clinical settings that was investigated. The adverse effects that were reported were minimal and were related to the increased drug dose that was delivered. Each of the delivery devices provided similar outcomes in patients using the correct technique for inhalation. CONCLUSIONS: Devices used for the delivery of bronchodilators and steroids can be equally efficacious. When selecting an aerosol delivery device for patients with asthma and COPD, the following should be considered: device/drug availability; clinical setting; patient age and the ability to use the selected device correctly; device use with multiple medications; cost and reimbursement; drug administration time; convenience in both outpatient and inpatient settings; and physician and patient preference.


Asunto(s)
Nebulizadores y Vaporizadores , Agonistas Adrenérgicos beta/administración & dosificación , Antiasmáticos/administración & dosificación , Antagonistas Colinérgicos/administración & dosificación , Diseño de Equipo , Medicina Basada en la Evidencia , Glucocorticoides/administración & dosificación , Humanos , Espaciadores de Inhalación , Inhaladores de Dosis Medida , Nebulizadores y Vaporizadores/normas , Guías de Práctica Clínica como Asunto , Enfermedad Pulmonar Obstructiva Crónica/tratamiento farmacológico , Ensayos Clínicos Controlados Aleatorios como Asunto
14.
Pediatr Pulmonol ; 39(3): 209-18, 2005 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-15573395

RESUMEN

Interferon gamma-1b (IFN-gamma1b) is a pleiotropic cytokine with immunomodulatory activities that could decrease bacterial burden, inflammation, and obstruction in patients with CF. Patients with CF (> or =12 years old, FEV1 > or =40% predicted) were randomly assigned to sequential dose cohorts inhaling 500 microg IFN-gamma1b, 1,000 microg IFN-gamma1b, or placebo by Respirgard II nebulizer thrice weekly for 12 weeks. Sputum bacterial density and spirometry were measured. Safety, antibiotic use, hospitalization, and sputum neutrophils, elastase, DNA, IL-8, and myeloperoxidase were also evaluated. Sixty-six patients (mean age, 24 years, with mean baseline FEV1 of 74 +/- 20 (SD) percent predicted) were studied. One patient had bronchospasm after the first dose of IFN-gamma1b; the overall withdrawal rate was 15% (5 in the placebo group, 2 in the 500-microg IFN-gamma1b group, and 3 in the 1,000 microg IFN-gamma1b group). The 500-microg IFN-gamma1b dose was well-tolerated, but the 1,000-mug dose cohort, who had a higher baseline bacterial density than placebo patients (mean difference, 1.2 log(10) CFU/g sputum, 95% confidence interval (CI), 0.1,2.8, P=0.04), had 24% more hospitalizations for exacerbation than placebo patients (95% CI, 2,45%, P=0.05). There was a 0.12-l difference between the 500-microg IFN-gamma1b and placebo groups with respect to the 12-week change in FEV1 (active group minus placebo group, 95% CI, -0.03,0.26, P=0.11), as compared to a 0.01-l difference between the 1,000-microg IFN-gamma1b and placebo groups (95% CI, -0.16,0.17, P=0.96). No effects of IFN-gamma1b were seen in sputum bacterial density or inflammatory biomarkers at 12 weeks. Aerosolized IFN-gamma1b did not improve pulmonary function, reduce sputum bacterial density, or affect inflammatory sputum markers in patients with mild-moderate lung disease.


Asunto(s)
Antineoplásicos/administración & dosificación , Fibrosis Quística/complicaciones , Fibrosis Quística/tratamiento farmacológico , Interferón gamma/administración & dosificación , Infecciones del Sistema Respiratorio/tratamiento farmacológico , Infecciones del Sistema Respiratorio/etiología , Administración por Inhalación , Adolescente , Adulto , Antibacterianos/uso terapéutico , Antineoplásicos/efectos adversos , Recuento de Colonia Microbiana , Fibrosis Quística/clasificación , Fibrosis Quística/metabolismo , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Esquema de Medicación , Disnea/inducido químicamente , Femenino , Hemoptisis/inducido químicamente , Hospitalización , Humanos , Interferón gamma/efectos adversos , Interleucina-8/análisis , Masculino , Neutrófilos/metabolismo , Elastasa Pancreática/análisis , Peroxidasa/análisis , Proteínas Recombinantes , Infecciones del Sistema Respiratorio/metabolismo , Esputo/química , Esputo/microbiología , Resultado del Tratamiento
15.
Respir Care ; 50(9): 1139-50, 2005 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-16122398

RESUMEN

Inhaled therapies have been used since ancient times and may have had their origins with the smoking of datura preparations in India 4,000 years ago. In the late 18th and in the 19th century, earthenware inhalers were popular for the inhalation of air drawn through infusions of plants and other ingredients. Atomizers and nebulizers were developed in the mid-1800s in France and were thought to be an outgrowth of the perfume industry as well as a response to the fashion of inhaling thermal waters at spas. Around the turn of the 20th century, combustible powders and cigarettes containing stramonium were popular for asthma and other lung complaints. Following the discovery of the utility of epinephrine for treating asthma, hand-bulb nebulizers were developed, as well as early compressor nebulizers. The marketing of the first pressurized metered-dose inhaler for epinephrine and isoproterenol, by Riker Laboratories in 1956, was a milestone in the development of inhaled drugs. There have been remarkable advances in the technology of devices and formulations for inhaled drugs in the past 50 years. These have been influenced greatly by scientific developments in several areas: theoretical modeling and indirect measures of lung deposition, particle sizing techniques and in vitro deposition studies, scintigraphic deposition studies, pharmacokinetics and pharmacodynamics, and the 1987 Montreal Protocol, which banned chlorofluorocarbon propellants. We are now in an era of rapid technologic progress in inhaled drug delivery and applications of aerosol science, with the use of the aerosolized route for drugs for systemic therapy and for gene replacement therapy, use of aerosolized antimicrobials and immunosuppressants, and interest in specific targeting of inhaled drugs.


Asunto(s)
Nebulizadores y Vaporizadores/historia , Administración por Inhalación , Antiasmáticos/administración & dosificación , Antiasmáticos/historia , Asma/tratamiento farmacológico , Asma/historia , Cerámica , Clorofluorocarburos , Diseño de Equipo , Historia del Siglo XIX , Historia del Siglo XX , Humanos , Enfermedades Pulmonares/tratamiento farmacológico , Enfermedades Pulmonares/historia , Inhaladores de Dosis Medida/historia , Tamaño de la Partícula , Farmacocinética , Polvos , Cintigrafía/instrumentación
17.
J Aerosol Med ; 16(1): 47-53, 2003.
Artículo en Inglés | MEDLINE | ID: mdl-12737684

RESUMEN

Hydrofluoroalkane (HFA) propellants have largely replaced chlorofluorocarbon (CFC) propellants in metered dose inhalers (MDI). It is important to document the pharmacokinetics (PK) and pharmacodynamics (PD) of medications delivered using HFA propellants compared to CFC propellants. Six adult asthmatics with mild to moderate asthma were selected for the study. Each subject inhaled 180 microg of albuterol from an MDI with holding chamber. Venous blood was collected for measuring albuterol levels at intervals over 12 h, and spirometric measurements of airflow were measured over the same time period. Plasma samples were analyzed using a GC/MS assay developed in our laboratory. PK and PD parameters were calculated by nonlinear regression using WinNonlin. There were no statistically significant differences between PD parameters for HFA versus CFC propellants. The area under the plasma albuterol concentration versus time curve (AUC) was 72% greater for the HFA formulation, indicating a greater lung bioavailability (p = 0.015). This difference in bioavailability did not result in a statistically significant difference in FEV(1) values between the two propellants.


Asunto(s)
Agonistas Adrenérgicos beta/administración & dosificación , Propelentes de Aerosoles , Albuterol/administración & dosificación , Inhaladores de Dosis Medida , Agonistas Adrenérgicos beta/farmacocinética , Agonistas Adrenérgicos beta/farmacología , Albuterol/farmacocinética , Albuterol/farmacología , Área Bajo la Curva , Asma/tratamiento farmacológico , Disponibilidad Biológica , Humanos
18.
Case Rep Med ; 2014: 934657, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24715927

RESUMEN

Salmonella choleraesuis is one of the least commonly reported nontyphoidal salmonellae in the United States, accounting for only 0.08% and ranking lower than 20th place among all human source salmonellosis reported to the CDC in 2009. In the state of Connecticut, only 12 cases have been reported since 1998 and our case is the only case since 2008. We report a case of invasive Salmonellosis caused by Salmonella choleraesuis in a patient on an antitumor necrosis factor- α agent (adalimumab) who recently returned from a trip to the Dominican Republic.

19.
Clin Nutr ; 33(2): 211-20, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23886411

RESUMEN

BACKGROUND & AIMS: Muscle wasting commonly occurs in COPD, negatively affecting outcome. The aim was to examine the net whole-body protein synthesis response to two milk protein meals with comparable absorption rates (hydrolyzed casein (hCAS) vs. hydrolyzed whey (hWHEY)) and the effects of co-ingesting leucine. METHODS: Twelve COPD patients (GOLD stage II-IV) with nutritional depletion, were studied following intake of a 15 g hCAS or hWHEY protein meal with or without leucine-co-ingestion, according to a double-blind randomized cross-over design. The isotopic tracers L-[ring-(2)H5]-Phenylalanine, L-[ring-(2)H2]-Tyrosine, L-[(2)H3]-3-Methylhistidine (given via continuous intravenous infusion), and L-[(15)N]-Phenylalanine (added to the protein meals) were used to measure endogenous whole-body protein breakdown (WbPB), whole-body protein synthesis (WbPS), net protein synthesis (NetPS), splanchnic extraction and myofibrillar protein breakdown (MPB). Analyses were done in arterialized-venous plasma by LC/MS/MS. RESULTS: WbPS was greater after intake of the hCAS protein meal (P < 0.05) whereas the hWHEY protein meal reduced WbPB more (P < 0.01). NetPS was stimulated comparably, with a protein conversion rate greater than 70%. Addition of leucine did not modify the insulin, WbPB, WbPS or MPB response. CONCLUSIONS: Hydrolyzed casein and whey protein meals comparably and efficiently stimulate whole-body protein anabolism in COPD patients with nutritional depletion without an additional effect of leucine co-ingestion. This trial was registered at clinicaltrials.gov as NCT01154400.


Asunto(s)
Caseínas/farmacocinética , Leucina/administración & dosificación , Proteínas de la Leche/farmacocinética , Enfermedad Pulmonar Obstructiva Crónica/tratamiento farmacológico , Absorción , Adulto , Anciano , Aminoácidos/sangre , Antropometría , Composición Corporal , Caseínas/administración & dosificación , Cromatografía Liquida , Estudios Cruzados , Método Doble Ciego , Femenino , Humanos , Insulina/sangre , Masculino , Desnutrición/complicaciones , Desnutrición/tratamiento farmacológico , Comidas , Persona de Mediana Edad , Proteínas de la Leche/administración & dosificación , Proteínas Musculares/efectos de los fármacos , Proteínas Musculares/metabolismo , Músculo Esquelético/efectos de los fármacos , Músculo Esquelético/metabolismo , Biosíntesis de Proteínas , Enfermedad Pulmonar Obstructiva Crónica/complicaciones , Espectrometría de Masas en Tándem , Proteína de Suero de Leche
20.
Artículo en Inglés | MEDLINE | ID: mdl-24857078

RESUMEN

The population of cancer survivors in the United States and worldwide is rapidly increasing. Many survivors will develop health conditions as a direct or indirect consequence of their cancer therapy. Thus, models to deliver high-quality care for cancer survivors are evolving. We provide examples of three different models of survivorship care from a cancer center, a community setting, and a country-wide health care system, followed by a description of the ASCO Cancer Survivorship Compendium, a tool to help providers understand the various models of survivorship care available and integrate survivorship care into their practices in a way that fits their unique needs.


Asunto(s)
Continuidad de la Atención al Paciente/organización & administración , Prestación Integrada de Atención de Salud/organización & administración , Cuidados a Largo Plazo/organización & administración , Oncología Médica/organización & administración , Neoplasias/terapia , Sobrevivientes , Centros Médicos Académicos/organización & administración , Servicios de Salud Comunitaria/organización & administración , Continuidad de la Atención al Paciente/tendencias , Prestación Integrada de Atención de Salud/tendencias , Sistemas de Información en Salud/organización & administración , Humanos , Cuidados a Largo Plazo/tendencias , Oncología Médica/tendencias , Modelos Organizacionales , Neoplasias/mortalidad , Neoplasias/patología , Factores de Tiempo , Resultado del Tratamiento
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