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1.
BMJ Case Rep ; 16(12)2023 Dec 19.
Artículo en Inglés | MEDLINE | ID: mdl-38114295

RESUMEN

Chemotherapy-induced hypertriglyceridaemia (HTG) is a potential serious adverse event. Severe HTG with triglycerides (TG) >11.3 mmol/L (1000 mg/dL) can cause acute pancreatitis in addition to cardiovascular diseases such as coronary artery disease. While the association of capecitabine (5-fluorouracil (5-FU) prodrug) with clinically relevant HTG is a well-known adverse reaction, 5-FU is not typically associated with HTG. We here report the case of a patient who developed 5-FU-associated grade 4 HTG with TG level raising up to 37.1 mmol/L (3286 mg/dL) occurring after the ninth cycle of adjuvant FOLFOX (Fluorouracil and Oxaliplatin) chemotherapy. Fenofibrate treatment and diet were started. Chemotherapy was postponed and then resumed for two additional cycles. However, severe HTG recurred shortly after. Chemotherapy was therefore permanently stopped. Approximately 8 weeks after chemotherapy discontinuation, TG fell back to range at 2.1 mmol/L (189 mg/dL) allowing interruption of fenofibrate without HTG recurrence at 3 months.


Asunto(s)
Fluorouracilo , Hipertrigliceridemia , Humanos , Fenofibrato/uso terapéutico , Fluorouracilo/efectos adversos , Hipertrigliceridemia/inducido químicamente , Hipertrigliceridemia/tratamiento farmacológico , Pancreatitis/etiología
2.
Mol Nutr Food Res ; 66(2): e2100192, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34808036

RESUMEN

SCOPE: The drug fenofibrate and dietary fish oils can effectively lower circulating triglyceride (TG) concentrations. However, a detailed comparative analysis of the effects on the plasma metabolome is missing. METHODS AND RESULTS: Twenty overweight and obese subjects participate in a double-blind, cross-over intervention trial and receive in a random order 3.7 g day-1 n-3 fatty acids, 200 mg fenofibrate, or placebo treatment for 6 weeks. Four hundred twenty plasma metabolites are measured via gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS). Among the treatments, 237 metabolites are significantly different, of which 22 metabolites change in the same direction by fish oil and fenofibrate, including a decrease in several saturated TG-species. Fenofibrate additionally changes 33 metabolites, including a decrease in total cholesterol, and total lysophosphatidylcholine (LPC), whereas 54 metabolites are changed by fish oil, including an increase in unsaturated TG-, LPC-, phosphatidylcholine-, and cholesterol ester-species. All q < 0.05. CONCLUSION: Fenofibrate and fish oil reduce several saturated TG-species markedly. These reductions have been associated with a decreased risk for developing cardiovascular disease (CVD). Interestingly, fish oil consumption increases several unsaturated lipid species, which have also been associated with a reduced CVD risk. Altogether, this points towards the power of fish oil to change the plasma lipid metabolome in a potentially beneficial way.


Asunto(s)
Ácidos Grasos Omega-3 , Fenofibrato , Método Doble Ciego , Ácidos Grasos Omega-3/farmacología , Fenofibrato/farmacología , Fenofibrato/uso terapéutico , Aceites de Pescado/farmacología , Humanos , Obesidad/tratamiento farmacológico , Sobrepeso , Triglicéridos
3.
Diabetes Care ; 44(8): 1868-1876, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-34158362

RESUMEN

OBJECTIVE: We investigated the long-term clinical efficacy of fenofibrate use with regard to mortality and cardiovascular outcomes in patients with type 2 diabetes. RESEARCH DESIGN AND METHODS: We performed a population-based cohort study using data of the South Korean National Health Insurance Service from 2003 to 2014. Of 63,727 participants with diabetes aged 40-79 years, 5,057 users of fenofibrate only were compared with 5,057 nonusers of fenofibrate and/or omega-3 fatty acid with 1:1 propensity matching. The primary end point was a composite of myocardial infarction, stroke, percutaneous coronary revascularization, and cardiac death for a median of 3 years. RESULTS: The primary end point was significantly lower in fenofibrate users compared with those using neither fenofibrate nor omega-3 fatty acid (13.4 vs. 15.5 per 1,000 person-years; hazard ratio [HR] 0.76; 95% CI 0.62-0.94; P = 0.010). Cardiac death (1.8 vs. 3.1 per 1,000 person-years; HR 0.59; 95% CI 0.352-0.987; P = 0.0446), all-cause death (7.6 vs. 15.3 per 1,000 person-years; HR 0.437; 95% CI 0.340-0.562; P < 0.0001), and stroke (6.5 vs. 8.6 per 1,000 person-years; HR 0.621; 95% CI 0.463-0.833; P = 0.0015) were significantly lower in the fenofibrate group. When the duration of fenofibrate use was stratified by quartile, the risk decreased in quartile 4, with an HR of 0.347 (95% CI 0.226-0.532; P < 0.0001). In subgroup analysis, the favorable effect of fenofibrate was sustained consistently across all subsets of patients, including those classified by LDL cholesterol, HDL cholesterol, and triglyceride levels. CONCLUSIONS: Use of fenofibrate was associated with a lower rate of total and cardiac mortality and cardiovascular events in patients with type 2 diabetes during a 3-year follow-up in real-world large populations.


Asunto(s)
Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Fenofibrato , Accidente Cerebrovascular , Enfermedades Cardiovasculares/epidemiología , Estudios de Cohortes , Fenofibrato/uso terapéutico , Humanos , Programas Nacionales de Salud , República de Corea/epidemiología
4.
Int J Mol Sci ; 22(7)2021 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-33916086

RESUMEN

Fibrates, including fenofibrate, are a class of hypolipidemic drugs that activate peroxisome proliferator-activated receptor α (PPARα), which in-turn regulates the expression of lipid and lipoprotein metabolism genes. We investigated whether fenofibrate can reduce visceral obesity and nonalcoholic fatty liver disease via adipose tissue PPARα activation in female ovariectomized (OVX) C57BL/6J mice fed a high-fat diet (HFD), a mouse model of obese postmenopausal women. Fenofibrate reduced body weight gain (-38%, p < 0.05), visceral adipose tissue mass (-46%, p < 0.05), and visceral adipocyte size (-20%, p < 0.05) in HFD-fed obese OVX mice. In addition, plasma levels of alanine aminotransferase and aspartate aminotransferase, as well as free fatty acids, triglycerides, and total cholesterol, were decreased. Fenofibrate also inhibited hepatic lipid accumulation (-69%, p < 0.05) and infiltration of macrophages (-72%, p < 0.05), while concomitantly upregulating the expression of fatty acid ß-oxidation genes targeted by PPARα and decreasing macrophage infiltration and mRNA expression of inflammatory factors in visceral adipose tissue. These results suggest that fenofibrate inhibits visceral obesity, as well as hepatic steatosis and inflammation, in part through visceral adipose tissue PPARα activation in obese female OVX mice.


Asunto(s)
Dislipidemias/prevención & control , Hígado Graso/prevención & control , Fenofibrato/uso terapéutico , Hipolipemiantes/uso terapéutico , Obesidad Abdominal/prevención & control , Adipocitos/efectos de los fármacos , Animales , Dieta Alta en Grasa , Evaluación Preclínica de Medicamentos , Femenino , Fenofibrato/farmacología , Hipolipemiantes/farmacología , Grasa Intraabdominal/metabolismo , Ratones Endogámicos C57BL , Ovariectomía , PPAR gamma/metabolismo
5.
J Perinatol ; 41(4): 865-872, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33070152

RESUMEN

BACKGROUND: Despite widespread phototherapy usage, many new-born infants remain in need of other invasive lines of therapy, such as intravenous immunoglobulins and exchange transfusions. OBJECTIVE: Assessment of the efficacy and the safety of adding fenofibrate to phototherapy for the treatment of pathological jaundice in full-term infants. DESIGN/METHODS: We conducted a double blinded randomized control study on 180 full-term infants with pathological unconjugated hyperbilirubinemia admitted to the NICU at Mansoura University Children's Hospital. They were randomly assigned to receive either oral fenofibrate 10 mg/kg/day for 1 day or 2 days or placebo in addition to phototherapy. The primary outcome was total serum bilirubin values after 12, 24, 36, 48, and 72 h from intervention. Secondary outcomes were total duration of treatment, need for exchange transfusions and intravenous immunoglobulin, exclusive breast-feeding on discharge, and adverse effects of fenofibrate. This study was registered at www.clinicaltrials.gov (NCT04418180). RESULTS: A total of 180 full-term infants were included, 60 in each group. Infants in group I and II showed significant reduction of bilirubin levels at 36, 48, and 72 h from intervention compared to group III, respectively. Fenofibrate administration was associated with significantly shorter duration of phototherapy, shorter hospital stay, and higher frequency of exclusive breast-feeding compared to phototherapy alone. CONCLUSION(S): Fenofibrate as an adjuvant to phototherapy in term neonate with pathological jaundice is well tolerated and associated with significant reduction of serum bilirubin levels, a shorter duration of phototherapy, shorter hospital stay and higher frequency of exclusive breast-feeding, without significant adverse effects in either the single or double dosage.


Asunto(s)
Fenofibrato , Hiperbilirrubinemia Neonatal , Niño , Método Doble Ciego , Recambio Total de Sangre , Femenino , Fenofibrato/uso terapéutico , Humanos , Hiperbilirrubinemia , Hiperbilirrubinemia Neonatal/terapia , Lactante , Recién Nacido , Fototerapia , Resultado del Tratamiento
6.
Expert Opin Pharmacother ; 20(16): 2007-2017, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31344332

RESUMEN

Introduction: Cardiovascular disease (CVD) frequently co-exists with chronic kidney disease (CKD). Patients with concomitant CVD and CKD are at very high risk of CVD events. Areas covered: This narrative review discusses the use of hypolipidaemic drugs in patients with both CVD and CKD. Current guidelines are considered together with the evidence from randomised controlled clinical trials. Expert opinion: Statins are the first-line lipid-lowering therapy in patients with CVD and CKD. Some statins require dose adjustments based on renal function, whereas atorvastatin does not. Ezetimibe can be prescribed in patients with CVD and CKD, usually combined with a statin. According to current guidelines, statin±ezetimibe therapy should not be initiated, but should be continued, in dialysis-treated CKD patients. Fenofibrate (dose adjusted or contra-indicated according to renal function) and omega 3 fatty acids lower triglyceride levels; whether they also exert cardiorenal benefits in patients with CVD and CKD remains to be established. The use of proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitors, cholesterol-reducing nutraceuticals, bempedoic acid and apabetalone in such patients should be investigated. Patients with concomitant CVD and CKD should be treated, in terms of lipid-lowering therapy, early and intensively to minimize their very high risk and possibly, progression of CKD.


Asunto(s)
Enfermedades Cardiovasculares/tratamiento farmacológico , Hipolipemiantes/uso terapéutico , Insuficiencia Renal Crónica/tratamiento farmacológico , Enfermedades Cardiovasculares/complicaciones , Enfermedades Cardiovasculares/patología , LDL-Colesterol/sangre , Ezetimiba/uso terapéutico , Ácidos Grasos Omega-3/uso terapéutico , Fenofibrato/uso terapéutico , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Inhibidores de PCSK9 , Insuficiencia Renal Crónica/complicaciones , Insuficiencia Renal Crónica/patología
7.
Regul Toxicol Pharmacol ; 107: 104404, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31199997

RESUMEN

Hyperlipidemia is a serious health threat that has been linked to oxidative stress and systemic inflammation, causing among many other disorders essentially liver disease. The current study was conducted to evaluate the antihyperlipidemic, antioxidant and anti-inflammatory potential of methanol leaf extract from Erica multiflora (M-EML). Triton WR-1339-induced hyperlipidemic rats were divided into six groups: control group (CG), hyperlipidemic group (300 mg/kg body weight "BW") (HG), hyperlipidemic group treated with M-EML (150 and 250 mg/kg) (HG + M-EML), normal rats treated with M-EML (250 mg/kg) and fenofibrate-treated group (HG + FF) (65 mg/kg). After 24 h of administration, triton WR-1339 induced a significant increase in lipid profile, atherogenic index (AI) and Coronary Risk Index (CRI) in HG group compared to control group. Furthermore, triton WR-1339 administration induced alteration in the status of pro-inflammatory markers (aspartate transaminase, alanine transaminase, IFN-γ and Nitric oxide production). HG group showed also, a high level of lipid peroxidation, an altered antioxidant enzyme profiles and an increase in DNA damages, in liver. However, orally administration of M-EML mitigates significantly these disorders, proving hence a protective potential against triton WR-1339-induced hyperlipidemia. These findings suggest that M-EML extract could be used as functional foods and natural adjuvant treatment of hyperlipidemia.


Asunto(s)
Antiinflamatorios/uso terapéutico , Antioxidantes/uso terapéutico , Ericaceae , Hiperlipidemias/tratamiento farmacológico , Hipolipemiantes/uso terapéutico , Extractos Vegetales/uso terapéutico , Animales , Antiinflamatorios/química , Antioxidantes/química , Fenofibrato/uso terapéutico , Hiperlipidemias/inducido químicamente , Hipolipemiantes/química , Hígado/efectos de los fármacos , Masculino , Fitoquímicos/análisis , Fitoquímicos/uso terapéutico , Extractos Vegetales/química , Hojas de la Planta , Polietilenglicoles , Ratas Wistar
8.
Curr Atheroscler Rep ; 21(1): 2, 2019 01 12.
Artículo en Inglés | MEDLINE | ID: mdl-30637567

RESUMEN

PURPOSE OF REVIEW: Treatment of hypercholesterolemia with statins results in significant reductions in cardiovascular risk; however, individuals with well-controlled low-density lipoprotein cholesterol (LDL-C) levels, but persistent high triglycerides (TG), remain at increased risk. Genetic and epidemiologic studies have shown that elevated fasting TG levels are associated with incident cardiovascular events. At effective doses, omega-3 fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), lower TG levels but may have additional atheroprotective properties compared to other TG-lowering therapies such as niacin and fibrates. The purpose of this review is to evaluate mechanisms related to the potential benefits of omega-3 fatty acids in atherothrombotic disease. RECENT FINDINGS: Large randomized clinical trials are currently under way to test the cardiovascular benefits of omega-3 fatty acids at a pharmacologic dosage (4 g/day). A large randomized trial with a prescription EPA-only formulation was shown to reduce a composite of cardiovascular events by 25% in statin-treated patients with established cardiovascular disease or diabetes and other CV risk factors. EPA and DHA have distinct tissue distributions as well as disparate effects on membrane structure and lipid dynamics, rates of lipid oxidation, and signal transduction pathways. Compared to other TG-lowering therapies, EPA has been found to inhibit cholesterol crystal formation, inflammation, and oxidative modification of atherogenic lipoprotein particles. The anti-inflammatory and endothelial benefits of EPA are enhanced in combination with a statin. Omega-3 fatty acids like EPA only at a pharmacologic dose reduce fasting TG and interfere with mechanisms of atherosclerosis that results in reduced cardiovascular events. Additional mechanistic trials will provide further insights into their role in reducing cardiovascular risk in subjects with well-managed LDL-C but elevated TG levels.


Asunto(s)
Aterosclerosis/tratamiento farmacológico , Trombosis Coronaria/tratamiento farmacológico , Ácidos Docosahexaenoicos/uso terapéutico , Ácido Eicosapentaenoico/uso terapéutico , Hipercolesterolemia/tratamiento farmacológico , Hipertrigliceridemia/tratamiento farmacológico , Membrana Celular/metabolismo , LDL-Colesterol/metabolismo , Ácidos Docosahexaenoicos/metabolismo , Ácido Eicosapentaenoico/metabolismo , Células Endoteliales/metabolismo , Fenofibrato/uso terapéutico , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Niacina/uso terapéutico , Factores de Riesgo , Triglicéridos/efectos adversos , Triglicéridos/metabolismo
9.
High Blood Press Cardiovasc Prev ; 25(4): 355-359, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30229462

RESUMEN

INTRODUCTION: Fenofibrate is an effective and safe treatment for hypertriglyceridemia. However, after TG reduction a residual dyslipidemia could appear and require further treatment. AIM: To comparatively evaluate the short-term tolerability and efficacy of a combined lipid-lowering nutraceutical and pravastatin 40 mg in fenofibrate treated patients. METHOD: We prospectively enrolled 40 patients well-tolerating treatment with micronized fenofibrate 145 mg/day and with residual dyslipidemia (LDL-C > 115 mg/dL and TG > 150 mg/dL). Exclusion criteria have been type 2 diabetes, Familial Hypercholesterolemia, previous cardiovascular diseases and severe chronic kidney disease. Then, we have randomly assigned the patients to treatment with pravastatin 40 mg or a combined lipid-lowering nutraceutical (Armolipid Plus®, containing monacolin 3 mg and berberine 500 mg). RESULTS: After 8 weeks of treatment, 80% of pravastatin treated patients (N. 16/20) and 75% of those treated with Armolipid Plus® (N. 15/20) reached the desired LDL-C target, while 50% of pravastatin treated patients (N. 10/20) and 80% of the Armolipid Plus® treated ones reached the desired TG target (N. 16/20). No one adverse event has been registered during Armolipid Plus®, while 1 patient claimed myalgia and 1 reported significant increase of CPK (> 3 ULN) during pravastatin treatment. Both patients were then treated with Armolipid Plus® with resolution of symptoms and CPK increase, respectively. CONCLUSION: In hypertriglyceridemic patients treated with fenofibrate, the association with a combined lipid lowering nutraceutical seem to be more effective in optimizing residual hypertriglyceridemia than pravastatin 40 mg, while being more tolerable and having similar effect on LDL-C plasma level.


Asunto(s)
Suplementos Dietéticos , Fenofibrato/uso terapéutico , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hipertrigliceridemia/tratamiento farmacológico , Pravastatina/uso terapéutico , Triglicéridos/sangre , Biomarcadores/sangre , Suplementos Dietéticos/efectos adversos , Regulación hacia Abajo , Quimioterapia Combinada , Femenino , Fenofibrato/efectos adversos , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/efectos adversos , Hipertrigliceridemia/sangre , Hipertrigliceridemia/diagnóstico , Italia , Masculino , Pravastatina/efectos adversos , Vigilancia de Productos Comercializados , Estudios Prospectivos , Factores de Tiempo , Resultado del Tratamiento
10.
J Clin Lipidol ; 12(6): 1390-1403.e4, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30197273

RESUMEN

BACKGROUND: Treatment with omega-3 fatty acids and fenofibrates reduces serum triglyceride levels, but few studies have compared the effect of these agents on liver fat. OBJECTIVE: The aim of the EFFECT I trial (NCT02354976) was to determine the effects of free omega-3 carboxylic acids (OM-3CA) and fenofibrate on liver fat in overweight or obese individuals with non-alcoholic fatty liver disease and hypertriglyceridemia. METHODS: Seventy-eight patients were randomized to receive oral doses of 4 g OM-3CA (n = 25), 200 mg fenofibrate (n = 27), or placebo (n = 26) for 12 weeks in a double-blind, parallel-group study. Liver proton density fat fraction (PDFF) and volume, pancreas volume, and adipose tissue volumes were assessed by magnetic resonance imaging. RESULTS: Changes in liver PDFF at 12 weeks were not significantly different across treatment groups (relative changes from baseline: placebo, +4%; OM-3CA, -2%; and fenofibrate, +17%). The common PNPLA3 genetic polymorphism (I148M) did not significantly influence the effects of OM-3CA or fenofibrate on liver PDFF. Fenofibrate treatment significantly increased liver and pancreas volumes vs placebo treatment, and the changes in liver and pancreas volumes were positively correlated (rho 0.45, P = .02). Total liver fat volume increased significantly in patients using fenofibrate vs OM-3CA (+23% vs -3%, P = .04). Compared with OM-3CA, fenofibrate increased total liver fat and liver volume. Serum triglycerides decreased with OM-3CA (-26%, P = .02) and fenofibrate (-38%, P < .001) vs placebo. In contrast to OM-3CA, fenofibrate reduced plasma docosahexaenoic acid levels and increased plasma acetylcarnitine and butyrylcarnitine levels, estimated delta-9 desaturase activity and the concentration of urine F2-isoprostanes. CONCLUSIONS: OM-3CA and fenofibrate reduced serum triglycerides but did not reduce liver fat. Fenofibrate increased total liver volume and total liver fat volume vs OM-3CA, indicating a complex effect of fenofibrate on human hepatic lipid metabolism.


Asunto(s)
Tejido Adiposo/efectos de los fármacos , Ácidos Carboxílicos/química , Ácidos Grasos Omega-3/uso terapéutico , Fenofibrato/uso terapéutico , Hipertrigliceridemia/tratamiento farmacológico , Hígado/efectos de los fármacos , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Adulto , Anciano , Glucemia/metabolismo , Peso Corporal/efectos de los fármacos , Método Doble Ciego , Ácidos Grasos Omega-3/química , Femenino , Fenofibrato/farmacología , Hepatocitos/efectos de los fármacos , Hepatocitos/patología , Humanos , Hipertrigliceridemia/sangre , Hipertrigliceridemia/patología , Lipoproteínas/sangre , Hígado/patología , Masculino , Persona de Mediana Edad , Enfermedad del Hígado Graso no Alcohólico/sangre , Enfermedad del Hígado Graso no Alcohólico/patología , Estrés Oxidativo/efectos de los fármacos , Páncreas/efectos de los fármacos , Páncreas/patología , Placebos , Resultado del Tratamiento
11.
Cell Physiol Biochem ; 48(3): 1060-1074, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30041165

RESUMEN

BACKGROUND/AIMS: The prevalence of hyperlipidemia is increasing rapidly. The role of Coreopsis tinctoria (CT) in amending lipid metabolism in hyperlipidemia patients has not been reported. This study aims to evaluate the role of CT in altering lipid metabolism in hyperlipidemia patients and to explore the possible mechanisms mediated by gut microbiota in hyperlipidemia mice models. METHODS: A retrospective analysis in 40 hyperlipidemia patients was conducted, in which 20 patients took fenofibrate and another 20 patients normatively drank water with CT. Hyperlipidemia mice models were also established. Blood biochemical tests were performed using an automatic biochemical analyzer. Liver histopathology was observed by hematoxylin and eosin staining. Ileocecal samples were collected from mice, and bacterial DNA was extracted and sequenced by MiSeq sequencing. Bacterial composition and differences were analyzed. RESULTS: In hyperlipidemia patients, CT was associated with decreased triglyceride and low-density lipoprotein (LDL) levels without liver injury. The experimental hyperlipidemia model also verified a similar result. Gut microbial richness and diversity were significantly decreased in hyperlipidemic mice, but increased after CT treatment. Bacterial communities were significantly differentiated between normal controls and hyperlipidemic mice. CT administration improved gut microbiota composition to an approximately normal status. Meanwhile, CT administration attenuated bacterial alterations at the class, order, family, and genus levels in hyperlipidemic mice. Importantly, the genera Barnesiella, Lactobacillus, and Helicobacter achieved high discriminatory power in hyperlipidemic mice relative to normal controls. CONCLUSIONS: CT can modulate blood lipid metabolism with improvement of liver function by decreasing LDL and improving gut microbiota compositions. These findings may provide novel therapeutic strategies for patients with hyperlipidemia.


Asunto(s)
Coreopsis/química , Microbioma Gastrointestinal/efectos de los fármacos , Hiperlipidemias/patología , Metabolismo de los Lípidos/efectos de los fármacos , Lipoproteínas LDL/sangre , Extractos Vegetales/farmacología , Adulto , Animales , Bacterias/genética , Bacterias/aislamiento & purificación , Coreopsis/metabolismo , ADN Bacteriano/química , ADN Bacteriano/aislamiento & purificación , ADN Bacteriano/metabolismo , Modelos Animales de Enfermedad , Femenino , Fenofibrato/farmacología , Fenofibrato/uso terapéutico , Humanos , Hiperlipidemias/tratamiento farmacológico , Hiperlipidemias/metabolismo , Intestinos/microbiología , Hígado/efectos de los fármacos , Hígado/metabolismo , Hígado/patología , Masculino , Ratones , Persona de Mediana Edad , Extractos Vegetales/química , Extractos Vegetales/uso terapéutico , Estudios Retrospectivos
12.
Proc Natl Acad Sci U S A ; 115(4): E743-E752, 2018 01 23.
Artículo en Inglés | MEDLINE | ID: mdl-29311302

RESUMEN

The cancer anorexia cachexia syndrome is a systemic metabolic disorder characterized by the catabolism of stored nutrients in skeletal muscle and adipose tissue that is particularly prevalent in nonsmall cell lung cancer (NSCLC). Loss of skeletal muscle results in functional impairments and increased mortality. The aim of the present study was to characterize the changes in systemic metabolism in a genetically engineered mouse model of NSCLC. We show that a portion of these animals develop loss of skeletal muscle, loss of adipose tissue, and increased inflammatory markers mirroring the human cachexia syndrome. Using noncachexic and fasted animals as controls, we report a unique cachexia metabolite phenotype that includes the loss of peroxisome proliferator-activated receptor-α (PPARα) -dependent ketone production by the liver. In this setting, glucocorticoid levels rise and correlate with skeletal muscle degradation and hepatic markers of gluconeogenesis. Restoring ketone production using the PPARα agonist, fenofibrate, prevents the loss of skeletal muscle mass and body weight. These results demonstrate how targeting hepatic metabolism can prevent muscle wasting in lung cancer, and provide evidence for a therapeutic strategy.


Asunto(s)
Caquexia/prevención & control , Carcinoma de Pulmón de Células no Pequeñas/complicaciones , Fenofibrato/uso terapéutico , Neoplasias Pulmonares/complicaciones , PPAR gamma/agonistas , Aminoácidos/metabolismo , Animales , Caquexia/sangre , Caquexia/etiología , Evaluación Preclínica de Medicamentos , Fenofibrato/farmacología , Gluconeogénesis , Cuerpos Cetónicos/deficiencia , Metabolismo de los Lípidos/efectos de los fármacos , Hígado/efectos de los fármacos , Hígado/metabolismo , Masculino , Diana Mecanicista del Complejo 1 de la Rapamicina/metabolismo , Ratones , Músculo Esquelético/efectos de los fármacos , Músculo Esquelético/metabolismo , Músculo Esquelético/patología , PPAR gamma/metabolismo
13.
Epilepsia ; 58(10): 1762-1770, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28766701

RESUMEN

OBJECTIVE: Nocturnal frontal lobe epilepsy (NFLE) is an idiopathic partial epilepsy with a family history in about 25% of cases, with autosomal dominant inheritance (autosomal dominant NFLE [ADNFLE]). Traditional antiepileptic drugs are effective in about 55% of patients, whereas the rest remains refractory. One of the key pathogenetic mechanisms is a gain of function of neuronal nicotinic acetylcholine receptors (nAChRs) containing the mutated α4 or ß2 subunits. Fenofibrate, a common lipid-regulating drug, is an agonist at peroxisome proliferator-activated receptor alpha (PPARα) that is a ligand-activated transcription factor, which negatively modulates the function of ß2-containing nAChR. To test clinical efficacy of adjunctive therapy with fenofibrate in pharmacoresistant ADNFLE\NFLE patients, we first demonstrated the effectiveness of fenofibrate in a mutated mouse model displaying both disease genotype and phenotype. METHODS: We first tested the efficacy of fenofibrate in transgenic mice carrying the mutation in the α4-nAChR subunit (Chrna4S252F) homologous to that found in humans. Subsequently, an add-on protocol was implemented in a clinical setting and fenofibrate was administered to pharmacoresistant NFLE patients. RESULTS: Here, we show that a chronic fenofibrate diet markedly reduced the frequency of large inhibitory postsynaptic currents (IPSCs) recorded from cortical pyramidal neurons in Chrna4S252F mice, and prevented nicotine-induced increase of IPSC frequency. Moreover, fenofibrate abolished differences between genotypes in the frequency of sleep-related movements observed under basal conditions. Patients affected by NFLE, nonresponders to traditional therapy, by means of adjunctive therapy with fenofibrate displayed a reduction of seizure frequency. Furthermore, digital video-polysomnographic recordings acquired in NFLE subjects after 6 months of adjunctive fenofibrate substantiated the significant effects on control of motor-behavioral seizures. SIGNIFICANCE: Our preclinical and clinical studies suggest PPARα as a novel disease-modifying target for antiepileptic drugs due to its ability to regulate dysfunctional nAChRs.


Asunto(s)
Anticonvulsivantes/farmacología , Epilepsia Refractaria/tratamiento farmacológico , Epilepsia del Lóbulo Frontal/tratamiento farmacológico , Fenofibrato/uso terapéutico , PPAR alfa/agonistas , Adulto , Animales , Benzodiazepinas/uso terapéutico , Carbamazepina/análogos & derivados , Carbamazepina/uso terapéutico , Clobazam , Modelos Animales de Enfermedad , Epilepsia Refractaria/genética , Quimioterapia Combinada , Electroencefalografía , Epilepsia del Lóbulo Frontal/genética , Femenino , Fenofibrato/farmacología , Humanos , Lamotrigina , Levetiracetam , Masculino , Ratones , Ratones Transgénicos , Persona de Mediana Edad , Mutación , Oxcarbazepina , Piracetam/análogos & derivados , Piracetam/uso terapéutico , Polisomnografía , Receptores Nicotínicos/genética , Triazinas/uso terapéutico , Ácido Valproico/uso terapéutico , Adulto Joven
15.
Clin Exp Dermatol ; 42(3): 276-281, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28233333

RESUMEN

BACKGROUND: Bexarotene is an oral retinoid approved for treating cutaneous T-cell lymphoma (CTCL) in patients resistant to first-line systemic treatment. Hypertriglyceridaemia is an unavoidable adverse effect of bexarotene therapy, and requires monitoring because of the risk of developing pancreatitis. Therefore, prophylactic hypolipidaemic therapy, usually with a fibrate alone, is required for preventing bexarotene-induced hypertriglyceridaemia. Despite these measures, a large number of patients develop very severe hypertriglyceridaemia. AIM: To assess the lipid metabolism changes before and after the use of a combination of omega-3 fatty acids (n-3 FA) plus fenofibrate compared with fenofibrate alone as a more effective lipid-lowering therapy in patients with CTCL treated with bexarotene. METHODS: From January 2005 to January 2013, we analysed all 25 patients with CTCL treated with bexarotene. The first 18 consecutively enrolled patients received fenofibrate alone as a lipid-lowering therapy, and the next 7 consecutively enrolled patients received a combination of fenofibrate and n-3 FA. RESULTS: Data for all 25 consecutive patients with CTCL treated with bexarotene were evaluated. Of these, 24 patients (96%) developed hypertriglyceridaemia despite the hypolipidaemic therapy, with this being very severe (> 11.2 mmol/L) in 20% of the cases. Of the 18 patients receiving fenofibrate alone, 5 (28%) developed very severe hypertriglyceridaemia, compared with none of the 7 patients treated with the n-3 FA combination. CONCLUSIONS: Our results suggest that the n-3 FA combination may be more effective than fibrate alone for preventing bexarotene-induced hypertriglyceridaemia.


Asunto(s)
Anticarcinógenos/efectos adversos , Ácidos Grasos Omega-3/uso terapéutico , Hipertrigliceridemia/tratamiento farmacológico , Hipolipemiantes/uso terapéutico , Linfoma Cutáneo de Células T/tratamiento farmacológico , Neoplasias Cutáneas/tratamiento farmacológico , Tetrahidronaftalenos/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Bexaroteno , Quimioterapia Adyuvante , Quimioterapia Combinada , Femenino , Fenofibrato/uso terapéutico , Humanos , Hipertrigliceridemia/inducido químicamente , Hipertrigliceridemia/metabolismo , Metabolismo de los Lípidos/efectos de los fármacos , Masculino , Persona de Mediana Edad
16.
Endocr Pract ; 23(1): 100-112, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27819772

RESUMEN

OBJECTIVE: To provide an overview of the roles of triglycerides and triglyceride-lowering agents in atherosclerosis in the context of cardiovascular outcomes studies. METHODS: We reviewed the published literature as well as ClinicalTrials.gov entries for ongoing studies. RESULTS: Despite improved atherosclerotic cardiovascular disease (ASCVD) outcomes with statin therapy, residual risk remains. Epidemiologic data and recent genetic insights provide compelling evidence that triglycerides are in the causal pathway for the development of atherosclerosis, thereby renewing interest in targeting triglycerides to improve ASCVD outcomes. Fibrates, niacin, and omega-3 fatty acids (OM3FAs) are three classes of triglyceride-lowering drugs. Outcome studies with triglyceride-lowering agents have been inconsistent. With regard to OM3FAs, the JELIS study showed that eicosapentaenoic acid (EPA) significantly reduced major coronary events in statin-treated hypercholesterolemic patients. Regarding other agents, extended-release niacin and fenofibrate are no longer recommended as statin add-on therapy (by some guidelines, though not all) because of the lack of convincing evidence from outcome studies. Notably, subgroup analyses from the outcome studies have generated the hypothesis that triglyceride lowering may provide benefit in statin-treated patients with persistent hypertriglyceridemia. Two ongoing OM3FA outcome studies (REDUCE-IT and STRENGTH) are testing this hypothesis in high-risk, statin-treated patients with triglyceride levels of 200 to 500 mg/dL. CONCLUSION: There is consistent evidence that triglycerides are in the causal pathway of atherosclerosis but inconsistent evidence from cardiovascular outcomes studies as to whether triglyceride-lowering agents reduce cardiovascular risk. Ongoing outcomes studies will determine the role of triglyceride lowering in statin-treated patients with high-dose prescription OM3FAs in terms of improved ASCVD outcomes. ABBREVIATIONS: AACE = American Association of Clinical Endocrinologists ACCORD = Action to Control Cardiovascular Risk in Diabetes AIM-HIGH = Atherothrombosis Intervention in Metabolic Syndrome with Low HDL/High Triglycerides: Impact on Global Health Outcomes apo = apolipoprotein ASCEND = A Study of Cardiovascular Events in Diabetes ASCVD = atherosclerotic cardiovascular disease BIP = Bezafibrate Infarction Prevention CHD = coronary heart disease CI = confidence interval CV = cardiovascular CVD = cardiovascular disease DHA = docosahexaenoic acid DO-IT = Diet and Omega-3 Intervention Trial EPA = eicosapentaenoic acid FIELD = Fenofibrate Intervention and Event Lowering in Diabetes GISSI-HF = GISSI-Heart Failure HDL-C = high-density-lipoprotein cholesterol HPS2-THRIVE = Heart Protection Study 2-Treatment of HDL to Reduce the Incidence of Vascular Events HR = hazard ratio JELIS = Japan Eicosapentaenoic Acid Lipid Intervention Study LDL = low-density lipoprotein LDL-C = low-density-lipoprotein cholesterol MI = myocardial infarction OM3FAs = omega-3 fatty acids VITAL = Vitamin D and Omega-3 Trial.


Asunto(s)
Aterosclerosis/prevención & control , Ácidos Grasos Omega-3/uso terapéutico , Hipertrigliceridemia/tratamiento farmacológico , Hipolipemiantes/uso terapéutico , Aterosclerosis/metabolismo , Enfermedades Cardiovasculares/metabolismo , Enfermedades Cardiovasculares/prevención & control , Fenofibrato/uso terapéutico , Ácidos Fíbricos/uso terapéutico , Humanos , Hipertrigliceridemia/metabolismo , Niacina/uso terapéutico , Triglicéridos/metabolismo
17.
Molecules ; 21(12)2016 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-27973425

RESUMEN

Zerumbone ameliorates retinal damage by blocking advanced glycation end products and their receptor system in streptozotocin-diabetic rats. Because of the multiple factors involved in diabetic retinopathy (DR) etiology, the mechanisms of zerumbone that are mainly responsible for its ameliorative effect on DR need to be further clarified. In the present study, zerumbone (20 mg or 40 mg/kg) or fenofibric acid (100 mg/kg) was orally administered to diabetic rats by intragastric gavage once daily for three consecutive months. Zerumbone displayed similar characteristics to fenofibric acid in reducing retinal vascular permeability and leukostasis in diabetic rats. Fundus photographs showed that large retinal vessel diameters were decreased in zerumbone-treated diabetic rats. Zerumbone not only down-regulated the gene expression of retinal angiogenic parameters, but also reduced the expression of inflammatory cytokines and chemokines in the retina of diabetic rats. Moreover, zerumbone reduced the p38 MAPK phosphorylation and abrogated the nuclear translocation of NF-κB p65 in the retina of diabetic rats. In conclusion, treatment of diabetic rats with zerumbone attenuates the severity of retinal inflammation and angiogenesis, via inhibition of p38 MAPK and NF-κB signaling pathways. These benefits of zerumbone for DR appear to be linked to its antihyperglycemic and antihyperlipidemic effects.


Asunto(s)
Diabetes Mellitus Experimental/patología , Retinopatía Diabética/tratamiento farmacológico , Retinopatía Diabética/prevención & control , Microvasos/efectos de los fármacos , Vasos Retinianos/efectos de los fármacos , Sesquiterpenos/uso terapéutico , Factor de Transcripción ReIA/antagonistas & inhibidores , Proteínas Quinasas p38 Activadas por Mitógenos/antagonistas & inhibidores , Animales , Permeabilidad Capilar/efectos de los fármacos , Fenofibrato/análogos & derivados , Fenofibrato/uso terapéutico , Productos Finales de Glicación Avanzada/antagonistas & inhibidores , Masculino , Microvasos/lesiones , Ratas , Ratas Wistar , Retina/efectos de los fármacos , Vasos Retinianos/lesiones , Transducción de Señal/efectos de los fármacos , Estreptozocina , Factor de Transcripción ReIA/metabolismo , Proteínas Quinasas p38 Activadas por Mitógenos/metabolismo
18.
Mil Med ; 181(9): 1013-5, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27612346

RESUMEN

BACKGROUND: Within the framework of routine fitness examinations, French Air Force military crew underwent urine testing for 3,4 methylenedioxymetamphetamine (MDMA [ecstasy]). The cross-reactivity of a dyslipidemic drug, fenofibrate, with an MDMA immunoassay was studied and confirmed on a large population sample. METHODS: A 3-year retrospective study was performed on the MDMA DRI Ecstasy Assay on the Unicel DXC 600. In the event of positive test result, a confirmatory testing was carried out by gas chromatography/mass spectrometry (GC/MS) to establish the presence of MDMA. When analysis by GC/MS did not confirm the presence of MDMA, a false-positive result was suspected and the samples were analyzed by high-performance liquid chromatography-mass spectrometry to identify a potential interfering substance. RESULTS: A total of 15,169 urine samples, from 7,803 patients, were tested for 3 years. Of the tested samples, 22 (0.15%) were positive by DRI Ecstasy Assay. None of them were positive by GC/MS. A cross-reactivity of fenofibrate's metabolite with MDMA using this assay was systematically found. CONCLUSION: Fenofibrate's interference with MDMA immunoassay was confirmed. Fenofibrate being widely prescribed, physicians had to be alerted that this treatment could lead to false-positive results.


Asunto(s)
Evaluación Preclínica de Medicamentos/normas , Reacciones Falso Positivas , Fenofibrato/análisis , N-Metil-3,4-metilenodioxianfetamina/orina , Adolescente , Adulto , Anciano , Evaluación Preclínica de Medicamentos/métodos , Fenofibrato/uso terapéutico , Fenofibrato/orina , Técnica del Anticuerpo Fluorescente Directa/métodos , Técnica del Anticuerpo Fluorescente Directa/normas , Francia , Cromatografía de Gases y Espectrometría de Masas/métodos , Humanos , Masculino , Persona de Mediana Edad , Personal Militar/estadística & datos numéricos , N-Metil-3,4-metilenodioxianfetamina/análisis
19.
Am Fam Physician ; 94(3): 219-26, 2016 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-27479624

RESUMEN

Vision loss affects 37 million Americans older than 50 years and one in four who are older than 80 years. The U.S. Preventive Services Task Force concludes that current evidence is insufficient to assess the balance of benefits and harms of screening for impaired visual acuity in adults older than 65 years. However, family physicians play a critical role in identifying persons who are at risk of vision loss, counseling patients, and referring patients for disease-specific treatment. The conditions that cause most cases of vision loss in older patients are age-related macular degeneration, glaucoma, ocular complications of diabetes mellitus, and age-related cataracts. Vitamin supplements can delay the progression of age-related macular degeneration. Intravitreal injection of a vascular endothelial growth factor inhibitor can preserve vision in the neovascular form of macular degeneration. Medicated eye drops reduce intraocular pressure and can delay the progression of vision loss in patients with glaucoma, but adherence to treatment is poor. Laser trabeculoplasty also lowers intraocular pressure and preserves vision in patients with primary open-angle glaucoma, but long-term studies are needed to identify who is most likely to benefit from surgery. Tight glycemic control in adults with diabetes slows the progression of diabetic retinopathy, but must be balanced against the risks of hypoglycemia and death in older adults. Fenofibrate also slows progression of diabetic retinopathy. Panretinal photocoagulation is the mainstay of treatment for diabetic retinopathy, whereas vascular endothelial growth factor inhibitors slow vision loss resulting from diabetic macular edema. Preoperative testing before cataract surgery does not improve outcomes and is not recommended.


Asunto(s)
Catarata/terapia , Retinopatía Diabética/terapia , Glaucoma/terapia , Degeneración Macular/terapia , Trastornos de la Visión/terapia , Anciano , Anciano de 80 o más Años , Inhibidores de la Angiogénesis/uso terapéutico , Antihipertensivos/uso terapéutico , Ácido Ascórbico/uso terapéutico , Bevacizumab/uso terapéutico , Ceguera/diagnóstico , Ceguera/etiología , Ceguera/terapia , Catarata/complicaciones , Catarata/diagnóstico , Extracción de Catarata , Retinopatía Diabética/complicaciones , Retinopatía Diabética/diagnóstico , Fenofibrato/uso terapéutico , Glaucoma/complicaciones , Glaucoma/diagnóstico , Humanos , Hipolipemiantes/uso terapéutico , Inyecciones Intravítreas , Fotocoagulación , Degeneración Macular/complicaciones , Degeneración Macular/diagnóstico , Tamizaje Masivo , Guías de Práctica Clínica como Asunto , Ranibizumab/uso terapéutico , Trastornos de la Visión/diagnóstico , Trastornos de la Visión/etiología , Baja Visión/diagnóstico , Baja Visión/etiología , Baja Visión/terapia , Vitamina E/uso terapéutico , Vitaminas/uso terapéutico
20.
Endocrinology ; 157(10): 3924-3934, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27526032

RESUMEN

The musculoskeletal effects of exercise are attenuated by estrogen deficiency. The peroxisome proliferator-activated receptor-α agonist fenofibrate exerts beneficial effects in bone and muscle. We therefore examined whether fenofibrate could enhance the musculoskeletal training response during estrogen deficiency. We investigated the combined effects of 8 weeks of fenofibrate and jumping exercise in ovariectomized (OVX) Sprague Dawley rats. Female rats were allocated to a sham-operated group and four OVX groups; fenofibrate (OVX-Fen), exercise (OVX-Ex), combined fenofibrate and exercise (OVX-FenEx), and a control group (OVX-Ctr) (n = 12/group). Fenofibrate (90 mg/kg/d) or methylcellulose was given by gavage. The combination of exercise and fenofibrate resulted in enhanced femoral bone mineral density (BMD) and improved bone microarchitecture compared with fenofibrate alone as well as increased trabecular BMD compared with OVX-Ctr. These effects were not seen in the OVX-Ex group. Femoral BMD was normalized in both exercise groups relative to sham and increased more in all intervention groups compared with OVX-Ctr. A higher plasma level of the bone formation marker type 1 collagen amino propeptide was observed in the OVX-Fen and OVX-FenEx groups compared with controls. Lean mass and soleus muscle weight were higher in the OVX-FenEx group than in the OVX-Ctr group, which coincided with lower mRNA levels of Atrogin1. These results suggest that peroxisome proliferator-activated receptor-α activation improves the musculoskeletal effects of exercise during estrogen deficiency.


Asunto(s)
Huesos/efectos de los fármacos , Estrógenos/deficiencia , Fenofibrato/uso terapéutico , PPAR alfa/agonistas , Condicionamiento Físico Animal , Animales , Composición Corporal/efectos de los fármacos , Densidad Ósea/efectos de los fármacos , Huesos/metabolismo , Evaluación Preclínica de Medicamentos , Femenino , Fenofibrato/farmacología , Humanos , Músculo Esquelético/efectos de los fármacos , Músculo Esquelético/metabolismo , Osteogénesis/efectos de los fármacos , Ovariectomía , Distribución Aleatoria , Ratas Sprague-Dawley , Tibia/diagnóstico por imagen , Tibia/efectos de los fármacos , Microtomografía por Rayos X
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