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Phosphodiesterase 5 as target for adipose tissue disorders
Giovani Colombo     Nitric Oxide Available online 28 October 2013

Adipose tissue as an endocrine organ is responsible for the release of multiple cytokines, which have the most diverse metabolic functions. Therefore, it is extremely important to preserve its physiological health in order to avoid local and systemic disorders. Experiments available in literature show the importance of the nitric oxide (NO)/guanosine 3′5′ cyclic monophosphate (cGMP)/protein kinase G (PKG) pathway in adipocyte biology. Phosphodiesterase 5 (PDE5) is an enzyme responsible for cGMP inactivation, and the use of its inhibitors can be an alternative in the search of a more balanced adipose tissue.

Objective

This review aims to describe the PDE5 role and the possibility of using PDE5 inhibitors in adipocyte physiology derangements and their consequences.

Design and methods

Studies published in the last 10 years that related PDE5 and its inhibitors to adipose tissue were raised in major databases.

Results

PDE5 is present in adipocyte, and PDE5 inhibitors can promote adipogenesis, interfere with adipokines secretion, decrease inflammatory markers expression, and increase the thermogenic potential of white adipose tissue.

Conclusions

PDE5 plays an important role in adipocyte physiology and the use of its inhibitors may prove a useful tool to combat adipose tissue disorders and its highest expression, metabolic syndrome.

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