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1.
Arch Osteoporos ; 19(1): 48, 2024 Jun 11.
Artículo en Inglés | MEDLINE | ID: mdl-38862849

RESUMEN

This pilot audit explored how bone health is assessed patients with diabetes in diverse centres across Asia. Only 343 of 1092 (31%) audited patients had a bone health assessment, 27% of whom were diagnosed with osteoporosis. Quality improvement strategies are needed to address gaps in patient care in this area. PURPOSE: The Asia Pacific Consortium on Osteoporosis (APCO) Framework outlines clinical standards for assessing and managing osteoporosis. A pilot audit evaluated adherence to clinical standard 4, which states that bone health should be assessed in patients with conditions associated with bone loss and/or increased fracture risk; this report summarises the audit findings in patients with diabetes. A secondary aim was to assess the practicality and real-world use of the APCO bone health audit tool kit. METHODS: Eight centres across Asia participated in the pilot audit, selecting diabetes as the target group. Participants reviewed their practice records for at least 20 consecutively treated patients with the target condition. Questions covered routine investigations, bone health assessment, osteoporosis diagnosis, and patient referral pathways. Data were summarised descriptively. RESULTS: The participants represented public hospitals, university medical centres, and private clinics from India, Malaysia, Pakistan, Singapore, Taiwan, and Vietnam that see an estimated total of 95,000 patients with diabetes per year. Overall, only 343 of 1092 audited patients (31%) had a bone health assessment. Osteoporosis was subsequently diagnosed in 92 of 343 (27%) patients. CONCLUSION: Bone health was not assessed in most patients with diabetes. The results provide insight into current practices across diverse Asian centres and demonstrate the practical value of the audit tool kit. Participant feedback has been used to improve the tool kit. Results of this pilot audit are being used in the respective centres to inform quality improvement projects needed to overcome the gap in patient care.


Asunto(s)
Adhesión a Directriz , Osteoporosis , Humanos , Proyectos Piloto , Osteoporosis/epidemiología , Femenino , Masculino , Asia/epidemiología , Adhesión a Directriz/estadística & datos numéricos , Persona de Mediana Edad , Anciano , Auditoría Médica , Diabetes Mellitus/epidemiología , Diabetes Mellitus/terapia , Densidad Ósea
2.
Ann Oncol ; 33(8): 794-803, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35491007

RESUMEN

BACKGROUND: Quantitative measurement of plasma Epstein-Barr virus (EBV) DNA by real-time PCR at the end of primary treatment is a robust prognostic marker for nasopharyngeal carcinoma (NPC) patients. However, up to 40% of patients who would later develop disease recurrence had undetectable post-treatment plasma EBV DNA. Targeted sequencing for the entire EBV genome potentially allows a more comprehensive and unbiased detection of plasma EBV DNA and enables the use of other parameters such as fragment size as biomarkers. Hence, we explored if plasma EBV DNA sequencing might allow more accurate prognostication of NPC patients. PATIENTS AND METHODS: Plasma samples collected from 769 patients with stage IIB-IVB NPC at 6-8 weeks after radiotherapy were analysed using targeted sequencing for EBV DNA. RESULTS: The sensitivities of the PCR-based analysis, at a cut-off of any detectable levels of plasma EBV DNA, for prediction of local and distant recurrences were 42.3% and 85.3%, respectively. The sequencing-based analysis (involving quantitation and size profiling) achieved better performance for both local and distant recurrences than PCR. Using a cut-off of the proportion of plasma EBV DNA deduced by sequencing at 0.01%, the sensitivities of the sequencing-based analysis for local and distant recurrences were 88.5% and 97.1%, with the resultant negative predictive values of 99.1% and 99.4%, respectively. Among patients with undetectable EBV DNA on quantitative PCR, sequencing could further define a subgroup that enjoyed superior survival outcomes based on the proportion of plasma EBV DNA, with a 5-year progression-free survival (PFS) approaching 90%. On multivariate analysis, sequencing-based quantitative level of plasma EBV DNA was the independent prognostic factor with the highest hazard ratio for prediction of overall survival and PFS. CONCLUSION: NPC prognostication using post-treatment plasma EBV DNA could be enhanced through sequencing.


Asunto(s)
Infecciones por Virus de Epstein-Barr , Neoplasias Nasofaríngeas , ADN Viral/genética , Herpesvirus Humano 4/genética , Humanos , Carcinoma Nasofaríngeo/patología , Carcinoma Nasofaríngeo/terapia , Neoplasias Nasofaríngeas/genética , Neoplasias Nasofaríngeas/patología , Neoplasias Nasofaríngeas/terapia , Recurrencia Local de Neoplasia/genética , Pronóstico , Reacción en Cadena en Tiempo Real de la Polimerasa , Medición de Riesgo
4.
Osteoporos Int ; 32(11): 2163-2172, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33954815

RESUMEN

Due to the huge gap in the care of patients with osteoporosis and fragility fractures, we aimed to explore the effectiveness of the osteoporosis liaison service (OLS) in osteoporosis care. We found that OLS can improve osteoporosis care, including increasing medication compliance, increasing calcium/vitamin D/protein intake, and reducing fall rate. INTRODUCTION: A significant gap exists in the care of patients with osteoporosis and fragility fractures. This study aimed to evaluate 1-year outcomes of an osteoporosis liaison service (OLS) program that includes two independent components: medication management services (MMS) to improve medication adherence and fracture liaison services (FLS) for secondary prevention. METHODS: Patients with new hip fracture or untreated vertebral fractures enrolled in the FLS program (n = 600), and those with osteoporosis medication management issues but not necessarily fragility fractures enrolled in the MMS program (n = 499) were included. To evaluate outcomes, care coordinators assessed baseline items adapted from the 13 Best Practices Framework (BPF) standards of the International Osteoporosis Foundation, with telephone follow-up every 4 months for 1 year. RESULTS: Mean age of this cohort was 76.2 ± 10.3 years, 78.8% were female. After 1-year participation in the program, all patients had received bone mineral density tests, and medication adherence for the entire cohort at 12 months was 91.9 ± 19.6%, with significant improvement in fall rates (23.4% reduction), exercise rates (16.8% increase), calcium intake (26.5% increase), vitamin D intake (26.4% increase), and adequate protein intake (17.3% increase) (all p < 0.05). After 1-year OLS program, the overall rates of mortality, incident fracture, and falls were 6.6%, 4.0%, and 24.3%, respectively. CONCLUSIONS: The OLS program is associated with improved osteoporosis care, including increased medication adherence, calcium/vitamin D and protein intake, and reduced fall rate.


Asunto(s)
Conservadores de la Densidad Ósea , Osteoporosis , Fracturas Osteoporóticas , Fracturas de la Columna Vertebral , Anciano , Anciano de 80 o más Años , Conservadores de la Densidad Ósea/uso terapéutico , Femenino , Humanos , Cumplimiento de la Medicación , Osteoporosis/tratamiento farmacológico , Fracturas Osteoporóticas/prevención & control , Prevención Secundaria
5.
Osteoporos Int ; 32(7): 1249-1275, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-33502559

RESUMEN

Guidelines for doctors managing osteoporosis in the Asia-Pacific region vary widely. We compared 18 guidelines for similarities and differences in five key areas. We then used a structured consensus process to develop clinical standards of care for the diagnosis and management of osteoporosis and for improving the quality of care. PURPOSE: Minimum clinical standards for assessment and management of osteoporosis are needed in the Asia-Pacific (AP) region to inform clinical practice guidelines (CPGs) and to improve osteoporosis care. We present the framework of these clinical standards and describe its development. METHODS: We conducted a structured comparative analysis of existing CPGs in the AP region using a "5IQ" model (identification, investigation, information, intervention, integration, and quality). One-hundred data elements were extracted from each guideline. We then employed a four-round Delphi consensus process to structure the framework, identify key components of guidance, and develop clinical care standards. RESULTS: Eighteen guidelines were included. The 5IQ analysis demonstrated marked heterogeneity, notably in guidance on risk factors, the use of biochemical markers, self-care information for patients, indications for osteoporosis treatment, use of fracture risk assessment tools, and protocols for monitoring treatment. There was minimal guidance on long-term management plans or on strategies and systems for clinical quality improvement. Twenty-nine APCO members participated in the Delphi process, resulting in consensus on 16 clinical standards, with levels of attainment defined for those on identification and investigation of fragility fractures, vertebral fracture assessment, and inclusion of quality metrics in guidelines. CONCLUSION: The 5IQ analysis confirmed previous anecdotal observations of marked heterogeneity of osteoporosis clinical guidelines in the AP region. The Framework provides practical, clear, and feasible recommendations for osteoporosis care and can be adapted for use in other such vastly diverse regions. Implementation of the standards is expected to significantly lessen the global burden of osteoporosis.


Asunto(s)
Osteoporosis , Fracturas de la Columna Vertebral , Asia/epidemiología , Humanos , Tamizaje Masivo , Osteoporosis/diagnóstico , Osteoporosis/epidemiología , Osteoporosis/terapia , Nivel de Atención
6.
Osteoporos Int ; 31(4): 699-708, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32103279

RESUMEN

Chronic kidney disease (CKD)-related osteoporosis is a major complication in patients with CKD, conferring a higher risk of adverse outcomes. We found that among those with diabetic kidney disease, this complication increased the risk of incident frailty, an important mediator of adverse outcomes. INTRODUCTION: Renal osteodystrophy and chronic kidney disease (CKD)-related osteoporosis increases complications for patients with diabetic kidney disease (DKD). Since musculoskeletal degeneration is central to frailty development, we investigated the relationship between baseline osteoporosis and the subsequent frailty risk in patients with DKD. METHODS: From the Longitudinal Cohort of Diabetes Patients in Taiwan (n = 840,000), we identified 12,027 patients having DKD with osteoporosis and 24,054 propensity score-matched controls having DKD but without osteoporosis. The primary endpoint was incident frailty on the basis of a modified FRAIL scale. Patients were prospectively followed-up until the development of endpoints or the end of this study. The Kaplan-Meier technique and Cox proportional hazard regression were used to analyze the association between osteoporosis at baseline and incident frailty in these patients. RESULTS: The mean age of the DKD patients was 67.2 years, with 55.4% female and a 12.6% prevalence of osteoporosis at baseline. After 3.5 ± 2.2 years of follow up, the incidence rate of frailty in patients having DKD with osteoporosis was higher than that in DKD patients without (6.6 vs. 5.7 per 1000 patient-year, p = 0.04). A Cox proportional hazard regression showed that after accounting for age, gender, obesity, comorbidities, and medications, patients having DKD with osteoporosis had a significantly higher risk of developing frailty (hazard ratio, 1.19; 95% confidence interval, 1.02-1.38) than those without osteoporosis. CONCLUSIONS: CKD-related osteoporosis is associated with a higher risk of incident frailty in patients with DKD.


Asunto(s)
Diabetes Mellitus , Nefropatías Diabéticas , Fragilidad , Osteoporosis , Insuficiencia Renal Crónica , Anciano , Antagonistas de Receptores de Angiotensina , Inhibidores de la Enzima Convertidora de Angiotensina , Estudios de Cohortes , Femenino , Fragilidad/complicaciones , Fragilidad/epidemiología , Humanos , Masculino , Osteoporosis/epidemiología , Osteoporosis/etiología , Puntaje de Propensión , Insuficiencia Renal Crónica/complicaciones , Insuficiencia Renal Crónica/epidemiología , Factores de Riesgo , Taiwán/epidemiología
7.
Osteoporos Int ; 31(5): 805-826, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-31788717

RESUMEN

The Asia -Pacific Bone Academy (APBA) Fracture Liaison Service (FLS) Focus Group educational initiative has stimulated activity across the Asia -Pacific region with the intention of supporting widespread implementation of new FLS. In 2017, the APBA FLS Focus Group developed a suite of tools to support implementation of FLS across the Asia-Pacific region as a component of a multi-faceted educational initiative. This article puts this initiative into context with a narrative review describing the burden of fragility fractures in the region, the current secondary fracture prevention care gap and a summary of emerging best practice. The results of a survey to evaluate the impact of the APBA educational initiative is presented, in addition to commentary on recent activities intended to improve the care of individuals who sustain fragility fractures across the Asia -Pacific. A FLS Toolbox for Asia-Pacific was developed which included the following sections:1. The burden of fragility fractures in the Asia-Pacific region.2. A summary of evidence for FLS in the Asia-Pacific.3. A generic, fully referenced FLS business plan template.4. Potential cost savings accrued by each country, based on a country-specific FLS Benefits Calculator.5. How to start and expand FLS programmes in the Asia-Pacific context.6. A step-by-step guide to setting up FLS in countries in the Asia-Pacific region.7. Other practical tools to support FLS establishment.8. FLS online resources and publications.The FLS Toolbox was provided as a resource to support FLS workshops immediately following the 5th Scientific Meeting of the Asian Federation of Osteoporosis Societies (AFOS) held in Kuala Lumpur in October 2017. The FLS workshops addressed three key themes:• The FLS business case.• Planning the FLS patient pathway.• The role of the FLS coordinator in fragility fracture care management.A follow-up survey of 142 FLS workshop participants was conducted in August-September 2018. The survey included questions regarding how FLS were developed, funded, the scope of service provision and the support provided by the educational initiative. Almost one-third (30.3%) of FLS workshop participants completed the survey. Survey responses were reported for those who had established a FLS at the time the survey was conducted and, separately, for those who had not established a FLS. Findings for those who had established a FLS included:• 78.3% of respondents established a multidisciplinary team to develop the business case for their FLS.• 87.0% of respondents stated that a multidisciplinary team was established to design the patient pathway for their FLS.• 26.1% of respondents stated that their FLS has sustainable funding.• The primary source of funding for FLS was from public hospitals (83.3%) as compared with private hospitals (16.7%).Most hospitals that had not established a FLS at the time the survey was conducted were either in the process of setting-up a FLS (47%) or had plans in place to establish a FLS for which approval is being sought (29%). The primary barrier to establishing a new FLS was lack of sustainable funding. The APBA FLS Focus Group educational initiative has stimulated activity across the Asia-Pacific region with the intention of supporting widespread implementation of new FLS. A second edition of the FLS Toolbox is in development which is intended to complement ongoing efforts throughout the region to expedite widespread implementation of FLS.


Asunto(s)
Osteoporosis , Fracturas Osteoporóticas , Asia/epidemiología , Humanos , Osteoporosis/prevención & control , Fracturas Osteoporóticas/epidemiología , Fracturas Osteoporóticas/prevención & control , Prevención Secundaria
8.
Osteoporos Int ; 29(5): 1023-1047, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29525971

RESUMEN

Fracture liaison services (FLS) have been demonstrated to improve outcomes following osteoporotic fracture. The aim of this systematic literature review (SLR) was to determine the characteristics of an FLS that lead to improved patient outcomes. We conducted a SLR, including articles published between 2000 and February 2017, using global (Medline, EMBASE, PubMed and Cochrane Library) and local databases. Studies including patients aged ≥ 50 years with osteoporotic fractures enrolled in an FLS were assessed. Information extracted from each article included key person coordinating the FLS (physician, nurse or other healthcare professional), setting (hospital vs community), intensity (single vs multiple), duration (long vs short term), fracture type and gender. A meta-analysis of randomised controlled trials was conducted based on the key person coordinating the FLS. Out of 7236 articles, 57 were considered to be high quality and identified for further analysis. The SLR identified several components which contributed to FLS success, including multidisciplinary involvement, driven by a dedicated case manager, regular assessment and follow-up, multifaceted interventions and patient education. Meta-analytic data confirm the effectiveness of an FLS following an osteoporotic fracture: approximate 27% increase in the likelihood of BMD testing and up to 21% increase in the likelihood of treatment initiation compared with usual care. The balance of evidence indicates that the multifaceted FLS and dedicated coordination are important success factors that contribute to effective FLS interventions which reduce fracture-related morbidity and mortality.


Asunto(s)
Prestación Integrada de Atención de Salud/organización & administración , Fracturas Osteoporóticas/prevención & control , Prevención Secundaria/organización & administración , Conservadores de la Densidad Ósea/uso terapéutico , Humanos , Osteoporosis/diagnóstico , Osteoporosis/tratamiento farmacológico , Indicadores de Calidad de la Atención de Salud
9.
Osteoporos Int ; 28(6): 1817-1833, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-28251287

RESUMEN

This systematic review summarizes the effect of combined exercise and nutrition intervention on muscle mass and muscle function. A total of 37 RCTs were identified. Results indicate that physical exercise has a positive impact on muscle mass and muscle function in subjects aged 65 years and older. However, any interactive effect of dietary supplementation appears to be limited. INTRODUCTION: In 2013, Denison et al. conducted a systematic review including 17 randomized controlled trials (RCTs) to explore the effect of combined exercise and nutrition intervention to improve muscle mass, muscle strength, or physical performance in older people. They concluded that further studies were needed to provide evidence upon which public health and clinical recommendations could be based. The purpose of the present work was to update the prior systematic review and include studies published up to October 2015. METHODS: Using the electronic databases MEDLINE and EMBASE, we identified RCTs which assessed the combined effect of exercise training and nutritional supplementation on muscle strength, muscle mass, or physical performance in subjects aged 60 years and over. Study selection and data extraction were performed by two independent reviewers. RESULTS: The search strategy identified 21 additional RCTs giving a total of 37 RCTs. Studies were heterogeneous in terms of protocols for physical exercise and dietary supplementation (proteins, essential amino acids, creatine, ß-hydroxy-ß-methylbuthyrate, vitamin D, multi-nutrients, or other). In 79% of the studies (27/34 RCTs), muscle mass increased with exercise but an additional effect of nutrition was only found in 8 RCTs (23.5%). Muscle strength increased in 82.8% of the studies (29/35 RCTs) following exercise intervention, and dietary supplementation showed additional benefits in only a small number of studies (8/35 RCTS, 22.8%). Finally, the majority of studies showed an increase of physical performance following exercise intervention (26/28 RCTs, 92.8%) but interaction with nutrition supplementation was only found in 14.3% of these studies (4/28 RCTs). CONCLUSION: Physical exercise has a positive impact on muscle mass and muscle function in healthy subjects aged 60 years and older. The biggest effect of exercise intervention, of any type, has been seen on physical performance (gait speed, chair rising test, balance, SPPB test, etc.). We observed huge variations in regard to the dietary supplementation protocols. Based on the included studies, mainly performed on well-nourished subjects, the interactive effect of dietary supplementation on muscle function appears limited.


Asunto(s)
Suplementos Dietéticos , Terapia por Ejercicio/métodos , Ejercicio Físico/fisiología , Sarcopenia/terapia , Aminoácidos Esenciales/uso terapéutico , Creatina/uso terapéutico , Proteínas en la Dieta/uso terapéutico , Humanos , Fuerza Muscular/fisiología , Sarcopenia/fisiopatología , Valeratos/uso terapéutico , Vitamina D/uso terapéutico
10.
Nutr Metab Cardiovasc Dis ; 26(12): 1140-1145, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27614801

RESUMEN

BACKGROUND AND AIMS: Increased arterial stiffness is closely linked with raised blood pressure that contributes substantially to enhanced risk of coronary heart disease in high risk individuals with familial hypercholesterolaemia (FH). Omega-3 fatty acid (ω3-FA) supplementation has been demonstrated to lower blood pressure in subjects with a high cardiovascular disease risk. Whether ω3-FA supplementation improves arterial stiffness in FH subjects, on background statin therapy, has yet to be investigated. METHOD AND RESULTS: We carried out an 8-week randomized, crossover intervention trial to test the effect of 4 g/d ω3-FA supplementation (46% eicosapentaenoic acid and 38% docosahexaenoic acid) on arterial elasticity in 20 adults with FH on optimal cholesterol-lowering therapy. Large and small artery elasticity were measured by pulse contour analysis of the radial artery. ω3-FA supplementation significantly (P < 0.05 in all) increased large artery elasticity (+9%) and reduced systolic blood pressure (-6%) and diastolic blood pressure (-6%), plasma triglycerides (-20%), apoB concentration (-8%). In contrast, ω3-FAs had no significant effect on small artery elasticity. The change in large artery elasticity was not significantly associated with changes in systolic blood pressure or plasma triglyceride concentration. CONCLUSIONS: ω3-FA supplementation improves large arterial elasticity and arterial blood pressure independent of statin therapy in adults with FH. CLINICAL TRIAL REGISTRATION: https://www.clinicaltrials.com/NCT01577056.


Asunto(s)
Enfermedades Cardiovasculares/prevención & control , Suplementos Dietéticos , Ácidos Docosahexaenoicos/uso terapéutico , Ácido Eicosapentaenoico/uso terapéutico , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hiperlipoproteinemia Tipo II/tratamiento farmacológico , Rigidez Vascular/efectos de los fármacos , Apolipoproteína B-100/sangre , Presión Arterial/efectos de los fármacos , Biomarcadores/sangre , Enfermedades Cardiovasculares/diagnóstico , Enfermedades Cardiovasculares/fisiopatología , Estudios Cruzados , Combinación de Medicamentos , Ezetimiba/uso terapéutico , Femenino , Humanos , Hiperlipoproteinemia Tipo II/sangre , Hiperlipoproteinemia Tipo II/diagnóstico , Masculino , Persona de Mediana Edad , Factores de Tiempo , Resultado del Tratamiento , Triglicéridos/sangre , Australia Occidental
11.
Osteoporos Int ; 27(9): 2855-2865, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27172935

RESUMEN

UNLABELLED: Medication persistence and adherence are critical for osteoporosis outcomes. Using the Taiwan National Health Insurance Research Database, we found that persistence and adherence to teriparatide were low in Taiwanese patients with osteoporosis and that greater persistence and adherence were associated with a lower incidence of hip and other nonvertebral fractures. INTRODUCTION: The purpose of this study was to determine the persistence and adherence to teriparatide treatment in Taiwanese patients with osteoporosis, and to examine the association between persistence and adherence to teriparatide with fracture risks. METHODS: Medical and pharmacy claims for 4,692 patients with vertebral or hip fractures and teriparatide prescriptions between 2005 and 2008 were identified (Taiwan National Health Insurance Research Database). Persistence was the time from the start of treatment to the first 90-day gap between two teriparatide prescriptions. Adherence was the number of teriparatide pens (each pen is used over 1 month) prescribed over 24 months. Association of persistence and adherence to teriparatide with fracture incidence was assessed using adjusted Cox proportional hazards models. RESULTS: The proportion of patients persisting with teriparatide for >6 months and >12 months was 44.6 and 24.9 %, respectively. Over 24 months, 53.6 % of patients were adherent for >6 months and 33.9 % were adherent for >12 months. Patients persisting for >12 months had a significantly lower incidence of hip (adjusted hazard ratio [HR], 0.61 [95 % confidence interval (CI), 0.40-0.93], P = 0.0229) and nonvertebral fracture (HR, 0.79 [95 % CI, 0.63-0.99], P = 0.0462) compared with those who persisted for ≤12 months. Patients adherent for >12 months had a lower incidence of hip (HR, 0.66 [95 % CI, 0.46-0.96], P = 0.0286) and nonvertebral fracture (HR, 0.81 [95 % CI, 0.66-0.99], P = 0.0377) compared with those adherent for ≤12 months. CONCLUSIONS: Persistence and adherence to teriparatide over 24 months were low in Taiwanese patients with osteoporosis; greater adherence and persistence were associated with a lower incidence of nonvertebral fractures.


Asunto(s)
Conservadores de la Densidad Ósea/uso terapéutico , Fracturas Óseas/epidemiología , Cumplimiento de la Medicación , Teriparatido/uso terapéutico , Anciano , Anciano de 80 o más Años , Femenino , Fracturas Óseas/prevención & control , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Programas Nacionales de Salud , Taiwán/epidemiología
12.
Diabetes Obes Metab ; 18(4): 384-91, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26679079

RESUMEN

AIM: To investigate the effects of extended-release (ER) niacin on apolipoprotein B-48 (apoB-48) kinetics in statin-treated patients with type 2 diabetes (T2DM). METHODS: A total of 12 men with T2DM were randomized to rosuvastatin or rosuvastatin plus ER niacin for 12 weeks and then crossed to the alternate therapy. Postprandial metabolic studies were performed at the end of each treatment period. D3-leucine tracer was administered as subjects consumed a high-fat liquid meal. ApoB-48 kinetics were determined using stable isotope tracer kinetics with fractional catabolic rates (FCRs) and secretion rates derived using a non-steady-state compartmental model. Area-under-the-curve (AUC) and incremental AUC (iAUC) for plasma triglyceride and apoB-48 were also calculated over the 10-h period after ingestion of the fat meal. RESULTS: In statin-treated patients with T2DM, apoB-48 concentration was lower with ER niacin (8.24 ± 1.98 vs 5.48 ± 1.14 mg/l, p = 0.03) compared with statin alone. Postprandial triglyceride and apoB-48 AUC were also significantly lower on ER niacin treatment (-15 and -26%, respectively; p < 0.05), without any change to triglyceride and apoB-48 iAUC. ApoB-48 secretion rate in the basal state (3.21 ± 0.34 vs 2.50 ± 0.31 mg/kg/day; p = 0.04) and number of apoB-48-containing particles secreted in response to the fat load (1.35 ± 0.19 vs 0.84 ± 0.12 mg/kg; p = 0.02) were lower on ER niacin. ApoB-48 FCR was not altered with ER niacin (8.78 ± 1.04 vs 9.17 ± 1.26 pools/day; p = 0.79). CONCLUSIONS: ER niacin reduces apoB-48 concentration by lowering fasting and postprandial apoB-48 secretion rate. This effect may be beneficial for lowering atherogenic postprandial lipoproteins and may provide cardiovascular disease risk benefit in patients with T2DM.


Asunto(s)
Apolipoproteína B-48/antagonistas & inhibidores , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hipolipemiantes/uso terapéutico , Niacina/uso terapéutico , Rosuvastatina Cálcica/uso terapéutico , Complejo Vitamínico B/uso terapéutico , Anciano , Apolipoproteína B-48/sangre , Apolipoproteína B-48/metabolismo , Enfermedades Cardiovasculares/complicaciones , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/prevención & control , Estudios Cruzados , Preparaciones de Acción Retardada/uso terapéutico , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/complicaciones , Angiopatías Diabéticas/epidemiología , Angiopatías Diabéticas/prevención & control , Cardiomiopatías Diabéticas/epidemiología , Cardiomiopatías Diabéticas/prevención & control , Quimioterapia Combinada , Humanos , Masculino , Persona de Mediana Edad , Periodo Posprandial , Riesgo , Australia Occidental/epidemiología
13.
Diabetes Obes Metab ; 16(10): 994-1000, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24821431

RESUMEN

AIMS: Ectopic deposition of fat in skeletal muscle is a feature of metabolic syndrome, but its specific association with very-low-density lipoprotein (VLDL)-apolipoprotein (apo) B-100 metabolism remains unclear. METHODS: We examined the association between skeletal muscle fat content and VLDL-apoB-100 kinetics in 25 obese subjects, and the responses of these variables to weight loss. The fat contents of liver, abdomen and skeletal muscle were determined by magnetic resonance imaging, and VLDL-apoB-100 kinetics were assessed using stable isotope tracers. RESULTS: In obese subjects who were insulin sensitive (homeostasis model assessment, HOMA, score ≤ 2.6, n = 12), skeletal muscle fat content was significantly associated with hepatic fat content (r = 0.636), energy intake (r = 0.694), plasma triglyceride (r = 0.644), apoB-100 (r = 0.529), glucose (r = 0.622), VLDL-apoB-100 concentrations (r = 0.860), VLDL-apoB-100 fractional catabolic rate (FCR; r = -0.581) and VLDL-apoB-100 secretion rate (r = 0.607). These associations were not found in obese subjects who were insulin resistant (HOMA score >2.6, n = 13). Of these 25 subjects, 10 obese subjects underwent a 16-week weight loss program. The low-fat diet achieved significant reduction (p < 0.05) in body weight, visceral and subcutaneous fat areas, liver and skeletal muscle fat, energy intake, triglyceride, insulin, HOMA score, VLDL-apoB100 concentrations and VLDL-apoB100 secretion rate. The percentage reduction of skeletal muscle fat with weight loss was significantly associated with the corresponding changes in VLDL-apoB100 concentration (r = 0.770, p = 0.009) and VLDL-apoB-100 secretion (r = 0.682, p = 0.030). CONCLUSIONS: Skeletal muscle fat content is associated with VLDL-apoB-100 transport. Weight loss lowers skeletal muscle fat and VLDL-apoB-100 secretion.


Asunto(s)
Apolipoproteína B-100/metabolismo , Lipoproteínas VLDL/metabolismo , Hígado/metabolismo , Músculo Esquelético/metabolismo , Obesidad/metabolismo , Pérdida de Peso , Transporte Biológico , Dieta con Restricción de Grasas , Femenino , Humanos , Insulina/metabolismo , Resistencia a la Insulina , Masculino , Persona de Mediana Edad , Obesidad/sangre , Obesidad/complicaciones , Triglicéridos/metabolismo
14.
Eur J Surg Oncol ; 40(2): 214-9, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24316111

RESUMEN

BACKGROUND: The role of surgery in the management of large hepatocellular carcinomas (HCCs) is controversial. Advanced age and comorbidities are taken into account when major surgery is considered. PURPOSE: To compare the outcomes of liver resection (LR) and transarterial chemoembolization (TACE) for resectable HCC in patients aged 70 years or older. PATIENTS AND MATERIALS: This study included 70 patients aged 70 years or older treated for large HCCs (≥5 cm) between January 2007 and December 2012: 37 underwent LR and 33 underwent TACE. The outcomes of these patients were retrospectively analyzed. Univariate and multivariate Cox proportional hazard models were established. Kaplan-Meier survival curves were generated, and survival data were compared using the log-rank test. RESULTS: Hospital stay was significantly longer in the LR group than in the TACE group (10 days vs 8.5 days; P = 0.003). Treatment-related complications were more frequent in the TACE group, but this difference was not statistically significant. LR was associated with a better disease-free survival rate, median survival rate and cumulative overall survival rate. CONCLUSION: Our results showed that LR could be a safe and effective treatment option for HCC tumors ≥5 cm in patiets aged 70 years or older.


Asunto(s)
Factores de Edad , Carcinoma Hepatocelular/cirugía , Neoplasias Hepáticas/cirugía , Anciano , Anciano de 80 o más Años , Carcinoma Hepatocelular/patología , Carcinoma Hepatocelular/terapia , Quimioembolización Terapéutica , Contraindicaciones , Supervivencia sin Enfermedad , Femenino , Hepatectomía , Humanos , Estimación de Kaplan-Meier , Tiempo de Internación , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/terapia , Masculino , Pronóstico , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del Tratamiento
15.
Ir J Med Sci ; 183(1): 71-5, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23757214

RESUMEN

AIMS: The aim of this study was to analyze the association between the status of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor-2 (HER2) in breast cancer with neoadjuvant therapy by using tissue biopsy and surgical specimens. METHODS: This study included 78 patients with breast cancer, who presented to our hospital between June 1999 and June 2011, and were treated with neoadjuvant therapy and subsequent mastectomy or partial mastectomy. All clinicopathological data regarding pre-neoadjuvant biopsy and definitive surgical specimens were reviewed for accuracy. The status of ER, PR, and HER2 was determined by immunohistochemistry. RESULTS: Paired samples from 78 women (mean age 51.4 ± 11.7 years) were successfully analyzed. A switch in the status of ER was identified in 16 patients (20 %); PR, in 18 (23 %); and HER2, in 27 (35 %). There were no significant differences in the status of ER, PR, and HER2 between the primary tumor and the resected tumor after neoadjuvant therapy. Neoadjuvant therapy does not significantly influence the status of the steroid hormone receptors and the HER2 level in our study. CONCLUSIONS: Initial biopsy may be reliable for determining the appropriate adjuvant therapy, but final pathology are still needed to evaluate the prognosis and provided the alternative treatment when tumor recurrence. Further prospective study is needed to optimize the care available for breast cancer patients.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Neoplasias de la Mama/terapia , Carcinoma Ductal de Mama/terapia , Carcinoma Lobular/terapia , Receptor ErbB-2/metabolismo , Adulto , Anciano , Biopsia , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Carcinoma Ductal de Mama/metabolismo , Carcinoma Ductal de Mama/patología , Carcinoma Lobular/metabolismo , Carcinoma Lobular/patología , Quimioterapia Adyuvante , Femenino , Humanos , Mastectomía , Persona de Mediana Edad , Terapia Neoadyuvante , Selección de Paciente , Valor Predictivo de las Pruebas , Receptores de Estrógenos/metabolismo , Receptores de Progesterona/metabolismo , Estudios Retrospectivos , Resultado del Tratamiento
16.
Diabetes Obes Metab ; 16(6): 519-26, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24299019

RESUMEN

AIM: To test the effect of atorvastatin (ATV) and ATV plus ω-3 FAEEs on VLDL-TG metabolism in obese, insulin resistant men. METHODS: We carried out a 6-week randomized, placebo-controlled study to examine the effect of ATV (40 mg/day) and ATV plus ω-3 FAEEs (4 g/day) on VLDL-TG metabolism in 36 insulin resistant obese men. VLDL-TG kinetics were determined using d5 -glycerol, gas chromatography-mass spectrometry and compartmental modelling. RESULTS: Compared with the placebo, ATV significantly decreased VLDL-TG concentration (-40%, p < 0.001) by increasing VLDL-TG fractional catabolic rate (FCR) (+47%, p < 0.01). ATV plus ω-3 FAEEs lowered VLDL-TG concentration to a greater degree compared with placebo (-46%, p < 0.001) or ATV monotherapy (-13%, p = 0.04). This was achieved by a reduction in VLDL-TG production rate (PR) compared with placebo (-32%, p = 0.008) or ATV (-20%, p = 0.03) as well as a reciprocal increase in VLDL-TG FCR (+42%, p < 0.05) compared with placebo. CONCLUSION: In insulin resistant, dyslipidaemic, obese men, ATV improves VLDL-TG metabolism by increasing VLDL-TG FCR. The addition of 4 g/day ω-3 FAEE to statin therapy provides further TG-lowering by lowering VLDL-TG PR.


Asunto(s)
Ácidos Docosahexaenoicos/administración & dosificación , Ácido Eicosapentaenoico/administración & dosificación , Ácidos Heptanoicos/administración & dosificación , Resistencia a la Insulina , Lipoproteínas VLDL/sangre , Obesidad/tratamiento farmacológico , Pirroles/administración & dosificación , Triglicéridos/sangre , Anticolesterolemiantes/administración & dosificación , Apolipoproteína B-100/sangre , Atorvastatina , Combinación de Medicamentos , Quimioterapia Combinada , Dislipidemias/tratamiento farmacológico , Dislipidemias/metabolismo , Humanos , Masculino , Persona de Mediana Edad , Obesidad/metabolismo , Resultado del Tratamiento
18.
Curr Atheroscler Rep ; 15(3): 309, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23345190

RESUMEN

Exaggerated postprandial hypertriglyceridemia is a risk factor for cardiovascular disease. This metabolic abnormality is principally due to overproduction and/or decreased catabolism of triglyceride-rich lipoproteins (TRLs) and is a consequence of pathogenic genetic variations and other coexistent medical conditions, particularly obesity and insulin resistance. Accumulation of TRL in the postprandial state promotes the formation of small, dense low-density lipoproteins, as well as oxidative stress, inflammation, and endothelial dysfunction, all of which compound the risk of cardiovascular disease. The cardiovascular benefits of lifestyle modification (weight loss and exercise) and conventional lipid-lowering therapies (statins, fibrates, niacin, ezetimibe, and n-3 fatty acid supplementation) could involve their favorable effects on TRL metabolism. New agents, such as dual peroxisome-proliferator-activated receptor α/δ agonists, diacylglycerol, inhibitors of diacylglycerol acyltransferase 1 and microsomal triglyceride transfer protein, antisense oligonucleotides for apolipoprotein B-100 and apolipoprotein C-III, and incretin-based therapies, may enhance the treatment of postprandial lipemia, but their efficacy needs to be tested in clinical end point trials. Further work is required to develop a simple clinical protocol for investigating postprandial lipemia, as well as internationally agreed management guidelines for this type of dyslipidemia.


Asunto(s)
Enfermedades Cardiovasculares , Hipertrigliceridemia/tratamiento farmacológico , Hipolipemiantes/uso terapéutico , Periodo Posprandial , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/terapia , Humanos , Hipertrigliceridemia/complicaciones , Hipertrigliceridemia/metabolismo , Resultado del Tratamiento
19.
Eur J Surg Oncol ; 38(11): 1029-35, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-22959140

RESUMEN

BACKGROUND: Surgical excision of papillary breast lesions with atypia diagnosed using core needle biopsy (CNB) has been accepted; however, the management of benign papillary lesions (without atypia) has been controversial. The purpose of this study was to evaluate the surgical outcome of nonmalignant papillary lesions diagnosed by ultrasound-guided 14-gauge CNB, and to establish clear guidelines on management of these lesions. METHODS: We retrospectively identified 268 nonmalignant papillary breast lesions, including 203 benign lesions and 65 atypical lesions, diagnosed by CNB and subsequently surgically excised in 250 women at our institution between July 2004 and October 2010. For each lesion, medical records and radiologic and pathologic reports were reviewed and coded. We compared the histological upgrade among the collected variables. RESULTS: On histological examination after surgical excision, 15.4% atypical papillary lesions and 5.9% benign lesions were upgraded to malignant, and 20.2% benign lesions were upgraded to atypical. Atypia (P = 0.015) was significantly associated with malignant upgrade at excision. No clinical or radiologic variable was helpful in predicting the possibility of histological upgrade of CNB-diagnosed nonmalignant papillary lesions. CONCLUSIONS: Nonmalignant papillary lesions diagnosed with CNB showed an unacceptable pathological upgrade rate after excision. Therefore, surgical excision should be performed for all papillary lesions of the breast for definitive diagnosis.


Asunto(s)
Biopsia con Aguja Gruesa , Neoplasias de la Mama/cirugía , Carcinoma Papilar/cirugía , Biopsia Guiada por Imagen , Papiloma/diagnóstico , Papiloma/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/patología , Carcinoma Papilar/diagnóstico , Carcinoma Papilar/patología , Femenino , Humanos , Persona de Mediana Edad , Adulto Joven
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