Is there any relation between diabetes tharapy and cancer risk?

Česká verzia

Authors: Š. Svačina
Authors place of work: III. interní klinika 1. lékařské fakulty UK a VFN Praha, přednosta prof. MUDr. Štěpán Svačina, DrSc., MBA
Published in the journal: Vnitř Lék 2011; 57(9): 760-763
Category: 65th birthday Mudr. Jany Laciné and and 60th birthday Milana Tržila

Summary

Type 2 diabetes is associated with increased risk of cancer. This risk is related to HbA_1c increase and this influence is present also in prediabetes and in nondiabetics with HbA1c in upper normal range. In last 2 years, it was concluded that that the specific antidiabetic therapy could influence the cancer risk. In this review we show that reduction of HbA_1c does not change cancer risk. Most important is the risk reduction of cancer risk by metformin. Insulin therapy and the use of sulphonylurea related drugs, increases the risk of cancer. This risk can be eliminated in the combination with metformin. Other published results including the suspected effect related to the use of glargine, pioglitazone, sitagliptine and exenatide are inconsistent and analysis of long term effects of these drugs is necessary. The large discussion in many publications shows the important role of FDA and EMA. This agencies do not suspend drugs without consistent evaluation of results.

Key words:
glycemic control – cancer risk – prediabetes – metformin – derivates of sulphonylurea – insulin therapy – glargine – detemir – pioglitazone – sitagliptine

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