The impact of oral vitamin A derivatives on lipid metabolism - What recommendations can be derived for dealing with this issue in the daily dermatological practice?

Retinoids and vitamin A derivatives have been widely used topically and systemically in the treatment of hyper- and parakeratotic skin diseases, genodermatoses, severe acne, autoimmune diseases (i. e. lupus erythematosus) or cutaneous T-cell lymphoma for more than 30 years. In addition to the desired proliferation-inhibiting, differentiation-inducing and antiinflammatory or sebo-suppressive effects, vitamin A derivatives also affect lipid metabolism. This is shown primarily by an increase of transaminases, triglycerides or cholesterol levels which vary in intensity from patient to patient. The degree of impact on the different parameters of lipid metabolism depends on the nature of the vitamin A derivative on the one hand due to different receptor specific binding interactions (RAR/RXR), while on the other hand posttranslational processes also play a major role. This review paper gives a brief, concise overview of the vitamin A derivatives and possible effects on lipid metabolism that can be expected. Additionally it contains a recommendation for secure handling of abnormal laboratory values before, during and after oral therapy with vitamin A derivatives. The aim of this article is to provide practical help and confidence in dealing with vitamin A derivatives in daily clinical practice. The publication was created in cooperation with the Deutsche Dermatologische Gesellschaft (DDG) and Deutsche Gesellschaft zur Bekämpfung von Fettstoffwechselstörungen und ihren Folgeerkrankungen (DGFF [Lipid-Liga] e. V.).

[Cardiovascular diseases--bulk producers for prevention?]. / Herz-kreislauf-Erkrankungen. Ballaststoffe zur Prävention?

An unfavourable constellation of plasma lipids, e.g., a high triglyceride concentration in combination with a low HDL cholesterol concentration, is a relevant risk factor for the development of arteriosclerosis and coronary heart disease. Plasma lipids may be favourably influenced by bulk producers, in particular by plantago seed (psyllii semen). Several mechanisms of action are involved in this effect.

Better lipid target achievement for secondary prevention through disease management programs for diabetes mellitus and coronary heart disease in clinical practice in Germany.

AIMS: Disease management programs (DMP) for diabetes mellitus (DM) or coronary heart disease (CHD) address the treatment of lipid disorders. The current registry aimed to compare drug utilization, lipid lowering effects and further outcomes of outpatients at high cardiovascular risk in DMP for DM or CHD compared to patients in routine care (no-DMP). METHODS: This was a prospective non-interventional registry with a 1 year follow-up which enrolled consecutive patients with known DM and/or any vascular disease on simvastatin 40 mg monotherapy, to document lipid target achievement in clinical practice in Germany according to existing guidelines. Drug use (maintenance, add-on, switch, discontinuation) and other components of care were upon the discretion of the treating physician. RESULTS: Of a total of 12,154 patients (mean age 65.8 years, 61.2% males), 3273 were in DMP CHD, 3265 in DMP DM and 1760 in DMP CHD + DM. In DMP patients compared to no-DMP patients, comorbidities/risk factors were more frequent. More patients in the DMP groups attained the target level of low density lipoprotein (LDL-C) <70 mg/dl (1.8 mmol/l) at baseline (8.5% DMP vs. 5.7% no-DMP), at 6 month (10.3% vs. 7.4%) and 12 month follow-up (10.1% vs. 7.1%). Cholesterol absorption inhibitors were added in 16% of the patients at the end of the baseline or at the follow-up visits, while statin treatment (including mean dose) remained largely unchanged. Target achievement rates were highest for all time points in the DMP CHD + DM group. With respect to limitations, this study was restricted to lipid disorders as qualifying diagnosis and simvastatin as qualifying treatment, which is a potential cause of selection bias. Information on non-pharmacological measures was not collected, and the 12-month follow-up period was relatively short. CONCLUSION: Patients in DMP compared to those not in DMP achieved better LDL-C lowering and higher control rates, but overall lipid target achievement rates need to be improved. Longer-term observations are needed to corroborate these findings.

Lipid management in 13,000 high risk cardiovascular patients treated under daily practice conditions: LIMA Registry.

AIMS: We aimed to document the drug management of patients at high cardiovascular risk in daily practice, with the special focus on lipid-lowering treatment. METHODS AND RESULTS: In this prospective noninterventional study in 2387 outpatient centers throughout Germany, a total of 13,942 high-risk patients (mean age 65.7 years, 61.6% males) were treated with simvastatin 40 mg/day at entry as monotherapy. All patients were followed up for 12 months in terms of drug utilization, laboratory values, target attainment, and clinical events (including death, hospitalization, vascular events, and dialysis). Patients had coronary heart disease in 35.0%, diabetes mellitus in 24.4%, and the combination of coronary heart disease plus diabetes mellitus in 25.7%. In 21% of patients, a cholesterol absorption inhibitor was added to statin therapy at the entry visit, and in 23%, this was added at the follow up visit 6 months later. The target values for low-density lipoprotein-cholesterol (<2.6 mmol/L) were reached by 31.8% of patients at entry and by 50.0% at the end of this registry after 12 months. Mean blood pressure decreased (from 135.9/80.5 mmHg at baseline) by 3.1/1.9 mmHg after 12 months. In patients with documented diabetes, the targeted glycated hemoglobin (HbA1c <6.5%) was reached by 33.5% at baseline and by 40.0% after 12 months. Clinical events occurred in 11.7% of patients between baseline and month 6, and in 12.0% between months 6 and 12. CONCLUSION: In patients at high risk for cardiovascular events, comprehensive management under daily practice conditions leads to improvement of lipid, glucose, and blood pressure parameters. There is a need to improve secondary prevention among high-risk patients.