Effets cardio-metaboliques du rimonabant chez le sujet obese ou en surpoids avec dyslipidemie ou diabete de type 2.Scheen, André ; in Revue Médicale de Liège (2007), 62(2), 81-5 Rimonabant (Acomplia) is the first selective CB1 receptor blocker of the endocannabinoid system. It has been evaluated in the RIO ("Rimonabant In Obesity and related disorders") programme including above ... [more ▼] Rimonabant (Acomplia) is the first selective CB1 receptor blocker of the endocannabinoid system. It has been evaluated in the RIO ("Rimonabant In Obesity and related disorders") programme including above 6.600 overweight/obese patients with or without comorbidities followed for 1 to 2 years. Compared to placebo, rimonabant 20 mg/day consistently increases weight loss, reduces waist circumference, increases HDL cholesterol, lowers triglyceride levels, diminishes insulin resistance, and reduces the prevalence of metabolic syndrome. In patients with type 2 diabetes, rimonabant also diminishes HbA1c levels, an effect confirmed in the recent SERENADE trial. Almost half of the metabolic effects occurs beyond weight loss, suggesting direct peripheral effects of rimonabant. Rimonabant is indicated in Europe as an adjunct to diet and exercise for the treatment of obese patients, or overweight patients with associated risk factor(s), such as type 2 diabetes or dyslipidaemia. [less ▲] Detailed reference viewed: 60 (5 ULg) Insuffisance cardiaque et diabete de type 2: une relation a double sens.De Flines, Jenny ; Scheen, André ![]() in Revue Médicale de Liège (2007), 62(2), 112-7 The present article analyses the intimate relationship between diabetes mellitus and congestive heart failure. This relationship is indeed "bidirectional". On the one hand, it is well known that diabetes ... [more ▼] The present article analyses the intimate relationship between diabetes mellitus and congestive heart failure. This relationship is indeed "bidirectional". On the one hand, it is well known that diabetes mellitus, especially type 2 diabetes, predisposes to congestive heart failure due to intricated mechanisms. In most cases, there is a combination of various well-known risk factors, such as obesity, arterial hypertension and coronary heart disease, with a specific diabetic cardiomyopathy, whose pathophysiology is complex. On the other hand, several studies showed that congestive heart failure increases the risk of new type 2 diabetes, probably due to decreased muscular perfusion and excessive neurohumoral response. Remarkably, such a risk could be reduced by a drug capable of inhibiting the renin-angiotensin system, as previously reported in patients with arterial hypertension. The recent launch and the increasing use of thiazolidinediones (glitazones) raise the interest for congestive heart failure in diabetic patients. Indeed, because of their positive effect on insulin resistance and various pleiotropic effects, glitazones may exert some cardiovascular protection; however, both rosiglitazone and pioglitazone are associated with fluid retention, which could reveal or aggravate episodes of congestive heart failure. [less ▲] Detailed reference viewed: 75 (1 ULg) Le glucagon-like peptide-1 (GLP-1), nouvelle cible dans le traitement du diabete de type 2.Scheen, André ![]() in Revue Médicale de Liège (2007), 62(4), 217-21 Glucagon-like peptide-1 (GLP-1) is a gut hormone secreted in response to the ingestion of a meal. It exerts various favourable metabolic effects among which a glucose-dependent stimulation of insulin ... [more ▼] Glucagon-like peptide-1 (GLP-1) is a gut hormone secreted in response to the ingestion of a meal. It exerts various favourable metabolic effects among which a glucose-dependent stimulation of insulin secretion, an inhibition of glucagon secretion, a slow down of gastric emptying, and a central anorectic effect. In rodents, a protective effect, or even a trophic effect, on B cell has also been reported. Interestingly, GLP-1 secretion is decreased in patients with type 2 diabetes. This observation stimulated the pharmaceutical research with the aim of restoring appropriate GLP-1 circulating levels able to exert the numerous positive effects of the hormone. One of the main objectives was to solve the problem due to the very short half-life of GLP-1. We here briefly describe the main two proposed approaches : ether to subcutaneously inject an incretinomimetic agent closed to GLP-1 (exenatide) or a long-acting GLP-1 analogue (liraglutide), both being partially resistant to the action of dipeptidylpeptidase-IV (DPP-IV), either to orally administer a selective DPP-IV inhibitor, an enzyme metabolising endogenous GLP-1 (sitagliptin, vildagliptin, .... These new drugs offer the advantage of improving blood glucose control of type 2 diabetic patients, without inducing severe hypoglycaemia and without promoting weight gain (instead a weight reduction is generally observed). These agents should occupy a key place in the overall pharmacological strategy of type 2 diabetes in a near future, especially if the additional favourable effects on B cells are confirmed in clinical practice. [less ▲] Detailed reference viewed: 234 (3 ULg) A propos de la plus-value therapeutique.Scheen, André ![]() in Revue Médicale de Liège (2007), 62(5-6), 241-3 Detailed reference viewed: 9 (2 ULg) Actualites therapeutiques en lipidologie.Scheen, André ; Radermecker, Régis ; De Flines, Jenny et alin Revue Médicale de Liège (2007), 62(5-6), 324-8 Clinical lipidology has gained its recognition with the publication of numerous clinical trials since the 4S study in 1994. Since that time statins have fully confirmed their promises and play now a ... [more ▼] Clinical lipidology has gained its recognition with the publication of numerous clinical trials since the 4S study in 1994. Since that time statins have fully confirmed their promises and play now a crucial role in the battle against cardiovascular diseases. The last decade has been dominated by two demonstrations that apparently are discordant: (1) the lower the cholesterol level with the pharmacological intervention, the lower the risk of cardiovascular complications, arguing for the use of very efficacious cholesterol-lowering therapies; and (2) the cardiovascular protection provided by statins is present whatever the baseline cholesterol level, supporting the concept of pleiotropic effects of statins. As a consequence, statin treatment should be prescribed and intensified according to the high individual cardiovascular risk rather than because of the cholesterol level stricto sensu. Statin therapy should be completed by the addition of ezetimibe when LDL cholesterol level remains above target values or by the addition of fenofibrate when triglyceride levels are high and/or HDL cholesterol level is low. New pharmacological approaches aiming at further improving lipid profile, especially by targeting low HDL cholesterol levels, are currently in clinical development. [less ▲] Detailed reference viewed: 104 (2 ULg) Actualites therapeutiques dans le domaine de l'obesite.Rorive, Marcelle ; De Flines, Jenny ; Paquot, Nicolas et alin Revue Médicale de Liège (2007), 62(5-6), 329-34 The management of an obese patient aims not only at obtaining a durable weight loss, but also at attenuating various associated risk factors. This latter objective may already be obtained with a rather ... [more ▼] The management of an obese patient aims not only at obtaining a durable weight loss, but also at attenuating various associated risk factors. This latter objective may already be obtained with a rather moderate weight reduction (5-10% of initial body weight). The first step should favour life-style changes (diet and physical exercise), eventually together with a psychological support. In case of insufficient success, a pharmacological approach may be considered, in addition to life-style advices. Pharmacotherapy currently includes drugs that act on the central nervous system to decrease appetite (sibutramine), in the gastrointestinal tract to diminish fat absorption (orlistat) or at both central and peripheral sites (rimonabant). In case of extreme obesity or severe obesity associated with comorbidities, refractory to medical approaches, bariatric surgery may represent the only solution to obtain a major and sustained weight loss, together with a significant improvement of associated risk factors. Gastroplasty, especially laparoscopic gastric banding, has become very popular in our country. However, because of several limitations, it is increasingly replaced by derivative procedures, especially gastric bypass. In all cases, a multidisciplinary, integrated and individualized approach should be recommended, using realistic goals and targeting long-term weight reduction and improved health. [less ▲] Detailed reference viewed: 188 (10 ULg) Epilogue de la "memoire therapeutique"...Scheen, André ![]() in Revue Médicale de Liège (2007), 62(5-6), 471-3 Detailed reference viewed: 10 (2 ULg) La consommation reguliere de cafe reduirait le risque de diabete de type 2.Legrand, Delphine ; Scheen, André ![]() in Revue Médicale de Liège (2007), 62(9), 554-9 The prevention of type 2 diabetes has become a major public health objective. Cross-sectional studies have shown a lower prevalence of type 2 diabetes among coffee drinkers. The present article ... [more ▼] The prevention of type 2 diabetes has become a major public health objective. Cross-sectional studies have shown a lower prevalence of type 2 diabetes among coffee drinkers. The present article synthesizes results of recent prospective studies, which assessed the relative risk of developing type 2 diabetes according to coffee consumption. Most studies confirm a protective effect against type 2 diabetes, with some dose-response in function of the degree of daily coffee consumption. The observed effect is rather impressive (relative risk reduced to almost 0.70-0.40) and is present whatever the type of population. It appears equal, or event greater, with decaffeinated coffee as compared to regular coffee. These results suggest that the protective effect could not be attributed exclusively to caffeine, but rather that it should be explained by other components, most probably chlorogenic acid and/or various anti-oxidants. The precise mechanism explaining the protection of coffee against type 2 diabetes and its potential relevance in public health remain to be specified. [less ▲] Detailed reference viewed: 75 (1 ULg) Le point sur la controverse a propos de la rosiglitazone.Scheen, André ; De Flines, Jenny ; Paquot, Nicolas ![]() in Revue Médicale de Liège (2007), 62(9), 560-5 The present article aims at summarizing the recent controversy about rosiglitazone (Avandia), an insulin sensitizer used as oral antidiabetic agent in the treatment of type 2 diabetes. We will present and ... [more ▼] The present article aims at summarizing the recent controversy about rosiglitazone (Avandia), an insulin sensitizer used as oral antidiabetic agent in the treatment of type 2 diabetes. We will present and briefly discuss 1) the results of the meta-analysis that raised suspicion about a possible excess of coronary complications with rosiglitazone; 2) the more favourable results of the large prospective clinical trial RECORD, but which are currently limited to an interim analysis; and 3) the reassuring data from several large US databases comparing the cardiovascular prognosis of type 2 diabetic patients treated with different antidiabetic drugs. We will conclude, referring to the recent position statement of the Advisory Committee of the Food and Drug Administration, by providing some practical recommendations. [less ▲] Detailed reference viewed: 12 (1 ULg) Le medicament du mois. Combinaison fixe ezetimibe/simvastatine (Inegy).Scheen, André ; Radermecker, Régis ![]() in Revue Médicale de Liège (2007), 62(9), 585-90 Inegy, recently launched by Merck Sharp & Dohme and Schering Plough, is a fixed combination of simvastatin, which inhibits hepatic cholesterol synthesis, and ezetimibe, which selectively inhibits the ... [more ▼] Inegy, recently launched by Merck Sharp & Dohme and Schering Plough, is a fixed combination of simvastatin, which inhibits hepatic cholesterol synthesis, and ezetimibe, which selectively inhibits the intestinal absorption of cholesterol and phytosterols. The two mechanisms of action are complementary and result in a synergistic cholesterol-lowering effect. Three formulations of Inegy are commercialized and reimbursed in Belgium, ezetimibe 10 mg/simvastatin 20 mg, ezetimibe 10 mg/simvastatin 40 mg and ezetimibe 10 mg/ simvastatin 80 mg. By blocking both synthesis and absorption of cholesterol, the fixed combination exerts a cholesterol-lowering effect as important as, or even greater than, that observed with the highest dosage of simvastatin and other statins, with a good tolerance profile. Inegy is indicated, as adjuvant treatment to diet, in patients with primary hypercholesterolaemia (homozygote or heterozygote familial form and non-familial polygenic form) not well controlled with a statin alone. Ongoing trials aim at proving the efficacy of such a fixed combination in reducing cardiovascular morbidity and mortality. [less ▲] Detailed reference viewed: 115 (4 ULg) La resistance a l'aspirine chez le patient diabetique: decouverte de laboratoire ou realite clinique?Legrand, Delphine ; Scheen, André ![]() in Revue Médicale de Liège (2007), 62(10), 610-5 Aspirin is considered the gold standard antiplatelet therapy for primary and secondary prevention of cardiovascular (CV) disease. However, it appears less protective in diabetic patients than in the ... [more ▼] Aspirin is considered the gold standard antiplatelet therapy for primary and secondary prevention of cardiovascular (CV) disease. However, it appears less protective in diabetic patients than in the general population. This difference is attributed to a higher level of aspirin resistance observed in these subjects when in vitro tests are performed. The frequency of this problem, its mechanistic aspects and its clinical relevance remain largely unknown. Our analysis of the literature confirms a higher proportion of platelets resistant to aspirin in diabetic than in control individuals. This observation deserves further research because it may be associated with an increased risk of CV events and worse prognosis. [less ▲] Detailed reference viewed: 40 (2 ULg) L'etude clinique du mois. ADVANCE: amelioration de la survie et reduction des complications vasculaires et renales avec la combinaison fixe perindopril-indapamide chez le patient diabetique de type 2.Scheen, André ; Krzesinski, Jean-Marie ![]() in Revue Médicale de Liège (2007), 62(10), 639-43 The controlled ADVANCE trial compared the incidence of major macrovascular and microvascular complications in 5,569 type 2 diabetic patients randomised to a fixed combination of perindopril and indapamide ... [more ▼] The controlled ADVANCE trial compared the incidence of major macrovascular and microvascular complications in 5,569 type 2 diabetic patients randomised to a fixed combination of perindopril and indapamide and in 5,571 patients randomised to placebo, followed for a mean duration of 4.3 years. Compared with patients assigned placebo, those assigned active therapy had a mean reduction in systolic blood pressure of 5.6 mm Hg and diastolic blood pressure of 2.2 mm Hg, despite the fact physicians were allowed to adjust antihypertensive therapy ad libitum. The relative risk of a major macrovascular and microvascular event (primary endpoint) was reduced by 9% (p = 0.041) in the active group. The separate reductions in macrovascular and microvascular events were similar but were not independently statistically significant. The relative risk of death was significantly reduced by 14% (p = 0.025), essentially due to a lower death rate from cardiovascular diseases (-18%; p = 0.027). The incidence of any coronary event was also significantly reduced (-14 %; p = 0.020), while only a trend was observed for all cerebrovascular events. Finally, renal events were significantly less frequent (-21%; p < 0.0001) whereas all ocular events were only slightly reduced (-5%; NS) in the active group as compared to the placebo group. The fixed combination of perindopril and indapamide was well tolerated and easy to administer. Overall one death due to any cause would be averted among every 79 diabetic patients assigned active therapy for 5 years. There was no evidence that the effects of the study treatment differed by initial blood pressure level or concomitant use of other treatments at baseline. [less ▲] Detailed reference viewed: 87 (7 ULg) Le médicament du mois, EXFORGE® : première association d'un antagoniste calcique (bésylate d’amlodipine) et d'un inhibiteur des récepteurs de l'angiotensine II (valsartan)Krzesinski, Jean-Marie ; Scheen, André ![]() in Revue Médicale de Liège (2007), 62 Hypertension is a common treatable risk factor for cardiovascular disease. Even when identified and treated, most patients with hypertension do not get to blood pressure goal and they often need at least ... [more ▼] Hypertension is a common treatable risk factor for cardiovascular disease. Even when identified and treated, most patients with hypertension do not get to blood pressure goal and they often need at least two antihypertensive agents to achieve blood pressure control. Although various combination therapies are currently available for the treatment of hypertension, development of more powerful therapies is necessary to help implement guideline recommendations that call for more aggressive treatment options and early blood pressure control. Amlodipine/valsartan (Exforge®) is a new combination of antihypertensive agents that lower blood pressure via calcium channel blockade and angiotensin receptor antagonism. This potent dual mechanism of action is also likely to attenuate compound-specific adverse events, such as amlodipine-related peripheral oedema. Currently available data show that such a combination is a well-tolerated treatment that gets different kinds of patients with all grades of hypertension to their blood pressure goal. [less ▲] Detailed reference viewed: 330 (3 ULg) Screening for diabetes and other metabolic abnormalities in patients with schizophrenia and schizoaffective disorder: Evaluation of incidence and screening methods; ; et al in Journal of Clinical Psychiatry (2006), 67(10), 1493-1500 Objective: To assess the diagnostic properties of 2 different screening guidelines for the detection of diabetes in patients diagnosed with schizophrenia. Method: Over a 2-year period (November 2003 ... [more ▼] Objective: To assess the diagnostic properties of 2 different screening guidelines for the detection of diabetes in patients diagnosed with schizophrenia. Method: Over a 2-year period (November 2003-November 2005), 415 patients with schizophrenia were screened with a full laboratory screening and a 75-g oral glucose tolerance test (OGTT). The sensitivity of 2 screening strategies was compared with the "gold standard": the OGTT. The 2 strategies were (1) assessing fasting glucose in all patients, as suggested by the American Psychiatric Association/American Diabetes Association (APA/ADA), and (2) a screening strategy derived from the guidelines of the World Health Organization of assessing fasting glucose in all patients (step 1) and subsequently performing an OGTT in patients with impaired fasting glucose (step 2). Results: Of the total sample, 6.3% (N = 26) met criteria for diabetes, resulting in a mean annual incidence of diabetes of 3.15% (6.3% incident cases/2 years). A screening based on the APA/ADA guidelines detected diabetes in 12 (46.2%) of the 26 cases identified by the OGTT. The proposed 2-step strategy detected 25 (96.2%) of 26 cases. Conclusion: The data suggest a high incidence of diabetes in patients diagnosed with schizophrenia. However, the guidelines to detect diabetes as proposed by the APA/ADA did not sufficiently detect diabetes in this specific high-risk group. The alternative 2-step strategy was able to detect the vast majority of diabetes cases and should therefore be considered in the clinical routine of screening and monitoring patients with schizophrenia. [less ▲] Detailed reference viewed: 23 (0 ULg) Reversibility of antipsychotic treatment-related diabetes in patients with schizophrenia - A case series of switching to aripiprazole; ; et al in Diabetes Care (2006), 29(10), 2329-2330 Detailed reference viewed: 6 (0 ULg) Screening for metabolic abnormalities in patients with schizophrenia treated with antipsychotics: are we doing enough?; ; et al in European Neuropsychopharmacology (2006, September), 16(Suppl. 4), 398 Detailed reference viewed: 9 (4 ULg) Pioglitazone reduces insulin requirements and improves glycaemic control in insulin-treated patients with type 2 diabetes: results from PROactive; ; Scheen, André ![]() in Diabetologia (2006, September), 49(Suppl. 1), 489 Detailed reference viewed: 10 (0 ULg) Evaluation of the metabolic safety of aripiprazole; ; et al in European Neuropsychopharmacology (2006, September), 16(Suppl. 4), 399 Detailed reference viewed: 8 (4 ULg) A cross-sectional study of adiponectin in patients with schizophrenia; ; et al in European Neuropsychopharmacology (2006, September), 16(Suppl. 4), 430-431 Detailed reference viewed: 17 (5 ULg) Long-term glycaemic effects of pioglitazone in triple oral therapy: Results from PROactive; Scheen, André ![]() in Diabetologia (2006, September), 49(Suppl. 1), 488-489 Detailed reference viewed: 38 (0 ULg) |
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