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1.
J Nutr ; 140(10): 1757-63, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20702746

RESUMEN

The role of antioxidants in the pathogenesis of reflux esophagitis (RE), Barrett's esophagus (BE), and esophageal adenocarcinoma (EAC) remains unknown. We evaluated the associations among dietary antioxidant intake and these diseases. We performed an assessment of dietary antioxidant intake in a case control study of RE (n = 219), BE (n = 220), EAC (n = 224), and matched population controls (n = 256) (the Factors Influencing the Barrett's Adenocarcinoma Relationship study) using a modification of a validated FFQ. We found that overall antioxidant index, a measure of the combined intake of vitamin C, vitamin E, total carotenoids, and selenium, was associated with a reduced risk of EAC [odds ratio (OR) = 0.57; 95% CI = 0.33-0.98], but not BE (OR = 0.95; 95% CI = 0.53-1.71) or RE (OR = 1.60; 95% CI = 0.86-2.98), for those in the highest compared with lowest category of intake. Those in the highest category of vitamin C intake had a lower risk of EAC (OR = 0.37; 95% CI = 0.21-0.66; P-trend = 0.001) and RE (OR = 0.46; 95% CI = 0.24-0.90; P-trend = 0.03) compared with those in the lowest category. Vitamin C intake was not associated with BE, and intake of vitamin E, total carotenoids, zinc, copper, or selenium was not associated with EAC, BE, or RE. In conclusion, the overall antioxidant index was associated with a reduced risk of EAC. Higher dietary intake of vitamin C was associated with a reduced risk of EAC and RE. These results suggest that antioxidants may play a role in the pathogenesis of RE and EAC and may be more important in terms of progression rather than initiation of the disease process.


Asunto(s)
Adenocarcinoma/prevención & control , Antioxidantes/administración & dosificación , Esófago de Barrett/prevención & control , Dieta , Reflujo Gastroesofágico/prevención & control , Minerales/administración & dosificación , Anciano , Ácido Ascórbico/administración & dosificación , Carotenoides/administración & dosificación , Estudios de Casos y Controles , Cobre/administración & dosificación , Neoplasias Esofágicas/prevención & control , Femenino , Humanos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Factores de Riesgo , Selenio/administración & dosificación , Vitamina E/administración & dosificación , Zinc/administración & dosificación
2.
J Clin Oncol ; 38(22): 2519-2529, 2020 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-32453640

RESUMEN

PURPOSE: Burkitt lymphoma is an aggressive B-cell lymphoma curable with dose-intensive chemotherapy derived from pediatric leukemia regimens. Treatment is acutely toxic with late sequelae. We hypothesized that dose-adjusted etoposide, doxorubicin, cyclophosphamide, vincristine, prednisone, and rituximab (DA-EPOCH-R) may obviate the need for highly dose-intensive chemotherapy in adults with Burkitt lymphoma. METHODS: We conducted a multicenter risk-adapted study of DA-EPOCH-R in untreated adult Burkitt lymphoma. Low-risk patients received three cycles without CNS prophylaxis, and high-risk patients received six cycles with intrathecal CNS prophylaxis or extended intrathecal treatment if leptomeninges were involved. The primary endpoint was event-free survival (EFS), and secondary endpoints were toxicity and predictors of EFS and overall survival (OS). RESULTS: Between 2010 and 2017, 113 patients were enrolled across 22 centers, and 98 (87%) were high risk. The median age was 49 (range, 18-86) years, and 62% were ≥ 40 years. Bone marrow and/or CSF was involved in 29 (26%) of patients, and 28 (25%) were HIV positive. At a median follow-up of 58.7 months, EFS and OS were 84.5% and 87.0%, respectively, and EFS was 100% and 82.1% in low- and high-risk patients. Therapy was equally effective across age groups, HIV status, and International Prognostic Index risk groups. Involvement of the CSF identified the group at greatest risk for early toxicity-related death or treatment failure. Five treatment-related deaths (4%) occurred during therapy. Febrile neutropenia occurred in 16% of cycles, and tumor lysis syndrome was rare. CONCLUSION: Risk-adapted DA-EPOCH-R therapy is effective in adult Burkitt lymphoma regardless of age or HIV status and was well tolerated. Improved therapeutic strategies for adults with CSF involvement are needed (funded by the National Cancer Institute; ClinicalTrials.gov identifier: NCT01092182).


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Linfoma de Burkitt/tratamiento farmacológico , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Linfoma de Burkitt/patología , Ciclofosfamida/administración & dosificación , Doxorrubicina/administración & dosificación , Etopósido/administración & dosificación , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Prednisona/administración & dosificación , Pronóstico , Factores de Riesgo , Rituximab/administración & dosificación , Tasa de Supervivencia , Vincristina/administración & dosificación , Adulto Joven
3.
Emerg Med Australas ; 31(3): 393-398, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30198199

RESUMEN

OBJECTIVE: To determine if an ultrasound-guided femoral nerve block (FNB) is superior to an ultrasound-guided fascia iliaca compartment block (FICB) in providing pain relief to patients with a neck of femur or proximal femoral fracture. METHODS: A double-blind randomised controlled trial was conducted. All participants received two blocks, one active and one placebo. An active FICB was administered to 52 participants and 48 participants received an active FNB. RESULTS: Analysis was completed on data collected from 100 participants. Most patients were elderly and the majority were female. Both FICB and FNB achieved clinically significant mean reductions in pain scores (2.62 for FICB and 2.3 for FNB). There was no significant difference in reduction in pain scores between the two cohorts, P = 0.408. CONCLUSIONS: Ultrasound-guided FNB is not superior to ultrasound-guided FICB, with both facilitating an equivalent analgesia effect in patients with a neck of femur or proximal femur fracture.


Asunto(s)
Fascia/efectos de los fármacos , Arteria Femoral/efectos de los fármacos , Fracturas del Cuello Femoral/tratamiento farmacológico , Bloqueo Nervioso/normas , Ultrasonografía Intervencional/normas , Anciano , Anciano de 80 o más Años , Analgesia/métodos , Analgesia/normas , Analgesia/estadística & datos numéricos , Método Doble Ciego , Femenino , Fracturas del Cuello Femoral/complicaciones , Humanos , Masculino , Persona de Mediana Edad , Bloqueo Nervioso/métodos , Bloqueo Nervioso/estadística & datos numéricos , Dimensión del Dolor/métodos , Ultrasonografía Intervencional/métodos , Ultrasonografía Intervencional/estadística & datos numéricos
4.
Eur J Gastroenterol Hepatol ; 18(2): 195-202, 2006 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-16394802

RESUMEN

BACKGROUND: Coeliac disease is a common chronic inflammatory enteropathy characterized by villous atrophy and crypt hyperplasia in the small intestine. The mechanism of the intestinal damage in coeliac disease remains unclear. Glucagon-like peptide (GLP)-2 is an enterotrophic peptide that causes crypt hyperplasia and intestinal cell proliferation. We postulate that GLP-2 may be involved in the mucosal changes found in coeliac disease. OBJECTIVES: To study plasma concentrations of GLP-2 in untreated patients with coeliac disease and determine the response to a gluten-free diet (GFD). METHODS: A 440 kcal gluten-free test meal was given to seven controls and 12 coeliac patients at three time intervals: (1) before commencing a GFD; (2) 3 months after a GFD; and (3) 9 months after a GFD. Serial blood sampling was performed over a 2-h period. Each sample was analysed using radioimmunoassay for GLP-2, GLP-1, N-terminal glucagon (N-glucagon) and C-terminal glucagon (C-glucagon). RESULTS: Untreated coeliac patients had significantly higher basal and peak GLP-2 and N-glucagon plasma concentrations compared with controls. After 3 months on a GFD, there was a significant decrease in basal GLP-2 plasma concentrations. There was no significant difference between GLP-1 or C-glucagon in untreated coeliac patients compared with controls. CONCLUSION: This is the first reported study of GLP-2 in coeliac disease. After a GFD there is recovery of the intestine and a reduction in the GLP-2 trophic response. Our findings support the theory that GLP-2 may be part of the mucosal healing and maintenance mechanisms in coeliac disease.


Asunto(s)
Enfermedad Celíaca/sangre , Péptidos Similares al Glucagón/sangre , Adulto , Enfermedad Celíaca/dietoterapia , Femenino , Estudios de Seguimiento , Glucagón/sangre , Péptido 1 Similar al Glucagón/sangre , Péptido 2 Similar al Glucagón , Glútenes/administración & dosificación , Humanos , Masculino , Persona de Mediana Edad , Radioinmunoensayo , Resultado del Tratamiento
5.
Psychiatr Serv ; 63(7): 666-71, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-22588167

RESUMEN

OBJECTIVE: Hospitalization is a critical component of treatment for individuals with serious and persistent mental illness. Despite its resource intensity, the costs of inpatient psychiatric hospitalizations in the United States are not well understood. The objective of this research was to provide cost estimates for inpatient psychiatric care. METHODS: Using Premier's Perspective Comparative Database, supplemented with the MarketScan database, this study estimated the average charges, cost to provide care, and amount of reimbursement for inpatient psychiatric care in 418 community-based hospitals in 2006 (N=261,996 hospitalizations). RESULTS: Charges were 2.5 times higher than the hospitals' reported costs to deliver care. Reimbursed amounts indicated by MarketScan were similar to the reported costs to deliver care. The average cost to deliver care was highest for Medicare and lowest for the uninsured: schizophrenia treatment, $8,509 for 11.1 days and $5,707 for 7.4 days, respectively; bipolar disorder treatment, $7,593 for 9.4 days and $4,356 for 5.5 days; depression treatment, $6,990 for 8.4 days and $3,616 for 4.4 days; drug use disorder treatment, $4,591 for 5.2 days and $3,422 for 3.7 days; and alcohol use disorder treatment, $5,908 for 6.2 days and $4,147 for 3.8 days. CONCLUSIONS: Consistent with past research, the results suggest that previous attempts to control pricing may have led to unintended consequences, including a large gap between charges and reimbursed amounts, potential cost shifting between payers, and potentially extended lengths of stay to offset reduced per diems. The lack of transparency in pricing makes it challenging to estimate the cost to society for a day of psychiatric hospitalization.


Asunto(s)
Precios de Hospital/estadística & datos numéricos , Costos de Hospital/estadística & datos numéricos , Hospitalización/economía , Hospitales Comunitarios/economía , Reembolso de Seguro de Salud/estadística & datos numéricos , Trastornos Mentales/economía , Asignación de Costos , Humanos , Tiempo de Internación/economía , Medicaid/economía , Pacientes no Asegurados , Medicare/economía , Trastornos Mentales/terapia , Estados Unidos
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