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Published on: February 28, 2013
Glucose and LDL lowering: the need for intensive therapy
1Department of Clinical and Experimental Medicine, Section of Metabolic Diseases and Diabetes, University of Pisa, Italy. stefano.delprato@med.unipi.it
Insights
Intensive glucose lowering in diabetes effectively reduces microvascular complications but has uncertain effects on macrovascular issues. Multifactorial interventions, including glucose and lipid management, are crucial for diabetic patients.
Area of Science:
- Endocrinology
- Cardiology
- Diabetology
Background:
- Hyperglycemia strongly correlates with micro- and macrovascular complications in diabetes.
- Intensive glucose lowering reduces microvascular risks (retinopathy, nephropathy, neuropathy) but its macrovascular impact is debated.
Purpose of the Study:
- To analyze the impact of intensive glucose lowering on diabetic complications.
- To explore reasons for the uncertain effect on macrovascular complications.
- To emphasize the need for multifactorial interventions in diabetes management.
Main Methods:
- Review of epidemiological analyses and clinical trial data.
- Analysis of factors influencing outcomes in intensive diabetes treatment.
- Consideration of data from multi-intervention studies like Steno-2.
Main Results:
- Intensive glycemic control effectively prevents microvascular complications.
- The effect of intensive glucose lowering on macrovascular complications remains uncertain.
- Diabetic patients often have high cardiovascular risk, potentially leading to aggressive baseline treatment of risk factors.
Conclusions:
- Multifactorial intensive treatment is essential for diabetic patients.
- Combined glucose and lipid lowering strategies are recommended.
- Addressing multiple cardiovascular risk factors is critical for improving outcomes in diabetes.
Abstract:
In almost every epidemiological analysis so far performed a strong correlation always emerges between degree of hyperglycemia and risk of both micro- and macrovascular complications. However, whereas lowering plasma glucose levels by intensive treatment has proven to reduce the risk of development of retinopathy, nephropathy and neuropathy, the effect on macrovascular complications has remained quite doubtful. Multiple factors may have concurred to this negative findings including long duration of diabetes, poor pre-existing glycaemic control, potentially inadequate anti-diabetes drugs. Another potential explanation is that, given the high cardiovascular risk of the diabetic patients they were already aggressively treated as far as their cardiovascular risk factors are concerned. The annual mortality in these diabetic cohorts was, indeed, incredibly close to that of the non-diabetic population. These considerations along with the results of multiintervention studies, such as the Steno-2, supports the need for multifactorial intensive needs, definitely including glucose and lipid lowering.
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