[Anti-atherosclerotic effect of pioglitazone - The first evidence of the role of triglyceride/HDL ratio]
CSÁSZÁR Albert
FEBRUARY 20, 2011
Lege Artis Medicinae - 2011;21(02)
CSÁSZÁR Albert
FEBRUARY 20, 2011
Lege Artis Medicinae - 2011;21(02)
[The presence of multiple risk factors can multiply exponentially the risk of cardiovascular events, thus cardiovascular diseases are more severe in diabetes mellitus. One of the challenges we face today is the application of drugs that, besides improving glucose homeostasis, also have antiatherosclerotic effect. Such candidates are glitazones, which have pleiotropic efficiency beyond their main effect: they improve distribution of adipose tissue, blood pressure and endothelial function and also have anti-inflammatory and anti-coagulation capacity. Regarding the effects on lipid metabolism, there are differences between various glitazones: improvements are mainly achieved by pioglitazone, which markedly reduces triglyceride levels, and also elevates HDL levels and decreases the ratio of small, dense LDL-particles. Studies on clinical outcomes also show the superiority of pioglitazone. Imaging of blood vessels (carotis-IMT, intracoronary ultrasound technique) also suggest a greater efficiency of pioglitazone. According to the latest analysis of the PERISCOPE study, the stability of the coronary plaque was associated only with the triglyceride/ HDL ratio in case of pioglitazone. The newest data also revealed that pioglitazone uniquely increases the cholesterol-efflux attributed to HDL-related macrophages. On the basis of the latest results, pioglitazone not only improves glucose homeostasis, but also has a remarkable anti-atherosclerotic effect, which is primarily due to its favourable lipid metabolism profile.]
Lege Artis Medicinae
Lege Artis Medicinae
Lege Artis Medicinae
Lege Artis Medicinae
Lege Artis Medicinae
[INTRODUCTION - Data on bone mineral density (BMD) in diabetes mellitus are contradictory in the literature. Early studies described a decreased bone mineral density in type 1 diabetes mellitus (T1DM), but recent studies report no osteopenia in T1DM.The BMD may depend on the quality of treatment for diabetes mellitus and on the presence of chronic complications. In type 2 diabetes mellitus (T2DM) the BMD is not decreased, occasionally it can even be increased. PATIENTS AND METHODS - Bone mineral density was measured in 122 regularly controlled diabetic patients (T1DM: n=73, mean age: 43.6±11.1 years,T2DM: n=49, mean age: 61.8±9.8 years) by dual energy X-ray absorptiometry at the lumbar spine and at the femur. Results were compared to those of 40 metabolically healthy control persons with a mean age of 47.5±11.9 years.The patients’ carbohydrate metabolism was assessed by the average HbA1c level of the last three years.These values were 7.9±1.4 % in T1DM, and 7.5±1.7 % in T2DM. BMDs were classified based on the T-score and Z-score using the WHO criteria. RESULTS - There was no significant difference in T1DM or in T2DM compared to the reference group in the prevalence of either osteoporosis or of osteoporosis and osteopenia combined. CONCLUSION - BMD was not found to be decreased in patients with well-controlled metabolism compared to healthy controls.]
Hypertension and nephrology
[The importance of hypertension in type 2 diabetes mellitus, the method of continuous blood pressure control and patient’s careas well as the forms of non-drug and drug therapy have been disclosed by presenting therapeutical recommendations from American, European scientific societies and international organizations. It has been established that the principles of care and treatment of hypertonia have basically remained unchanged in diabetes all over the world, despite the recent widespread debate over the interpretation of normal blood pressure and the consideration of the benefits of intensive or standard treatment.]
Hypertension and nephrology
[Authors had found diabetes mellitus type 2 in 30% of 38 886 hypertensive patients (stadium I-III). Diabetes was more frequent in case of women under 30 years. Subsequently all age groups (from 40 to 80 years) incidence was more frequently (p<0.01-0.001) in men, above 80 years again a higher ratio was in women. Presence of diabetes was correlated to rate of BMI value and systolic, diastolic pressure as well. In women - above 140 mmHg systolic pressure - the elevation was exponential. We have found a significant correlation between fasting glucose and waist. Reaching the target blood pressure is not a simply task in hypertensive patients with diabetes. The 140/90 mmHg was reached in 34.2%, 90 mmHg diastolic blood pressure in 62.3%, but the required 80 mmHg only in 16.4% of cases. Achieve the target value was quite different in the different region of our country. The major cardiovascular complications (stroke, renal disease, myocardial infarction, peripheral artery disease) have suffered a higher rate in the hypertensives with diabetes compered to hypertensives without diabetes.]
Lege Artis Medicinae
[The prognosis of patients with diabetes mellitus is mainly influenced by vascular complications which is partly due to the deterioration of the microcirculation. Laser Doppler flowmetry is a suitable method to investigate the complex disturbance that characteristic for diabetic microcirculation. This review gives a summary of the anatomical, physiological and theoretical backgrounds and the possibilities in diagnosis given by Laser Doppler flowmetry.]
Lege Artis Medicinae
[Recently, lixisenatide, a new incretin mimetic GLP-1-receptor agonist with a mainly prandial effect has been registered for the treatment of patients with type 2 diabetes mellitus. The amino acid sequence of lixisenatide and that of human native GLP-1 is 50% identical. Due to its altered amino acid sequence and conformation, lixisenatide is resistant to inactivation by DPP-4. Lixisenatide is a specific agonist of GLP-1- receptors and its binding has a pharmacologic GLP-1-agonist effect. Lixisenatide is used subcutaneously, its normal daily dose is 1×20 μg. It is mostly used in combination with metformin, but it can be also used to supplement sulfanylurea or basal insulin therapy. Clinical efficiency of lixisenatide has been investigated in the phase-III GetGoal trials. In these trials, adequate glycaemic control and a marked decrease in postprandial blood glucose values were observed. During lixisenatide therapy, a decrease in body weight and no substantial increase in the risk of hypoglycaemia were observed, whereas transient gastrointestinal side effects might occur after initiation of treatment. Lixisenatide as an add-on treatment to basal insulin should be considered as a new treatment approach in the management of type 2 diabetes.]
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