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EnglishRecent compelling evidence suggests a role of vitamin D deficiency in the pathogenesis of insulin resistance and insulin secretion derangements, with a consequent possible interference with type 2 diabetes mellitus. The mechanism of this link is incompletely understood. In fact, vitamin D deficiency is usually detected in obesity in which insulin resistance is also a common finding. The coexistence of insulin resistance and vitamin D deficiency has generated several hypotheses. Some cross-sectional and prospective studies have suggested that vitamin D deficiency may play a role in worsening insulin resistance; others have identified obesity as a risk factor predisposing individuals to exhibit both vitamin D deficiency and insulin resistance. The available data from intervention studies are largely confounded, and inadequate considerations of seasonal effects on 25(OH)D concentrations are also a common design flaw in many studies. On the contrary, there is strong evidence that obesity might cause both vitamin D deficiency and insulin resistance, leaving open the possibility that vitamin D and diabetes are not related at all. Although it might seem premature to draw firm conclusions on the role of vitamin D supplementation in reducing insulin resistance and preventing type 2 diabetes, this manuscript will review the circumstances leading to vitamin D deficiency and how such a deficiency can eventually independently affect insulin sensitivity.
Mezza, T., Muscogiuri, G., Sorice, G., Prioletta, A., Salomone, E., Pontecorvi, A., Giaccari, A., Vitamin D deficiency: a new risk factor for type 2 diabetes?, <<ANNALS OF NUTRITION AND METABOLISM>>, 2012; 61 (4): 337-348. [doi:10.1159/000342771] [http://hdl.handle.net/10807/42559]
| Autori: | |
| Titolo: | Vitamin D deficiency: a new risk factor for type 2 diabetes? |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1159/000342771 |
| URL: | http://www.karger.com/Article/FullText/342771 |
| Data di pubblicazione: | 2012 |
| Abstract: | Recent compelling evidence suggests a role of vitamin D deficiency in the pathogenesis of insulin resistance and insulin secretion derangements, with a consequent possible interference with type 2 diabetes mellitus. The mechanism of this link is incompletely understood. In fact, vitamin D deficiency is usually detected in obesity in which insulin resistance is also a common finding. The coexistence of insulin resistance and vitamin D deficiency has generated several hypotheses. Some cross-sectional and prospective studies have suggested that vitamin D deficiency may play a role in worsening insulin resistance; others have identified obesity as a risk factor predisposing individuals to exhibit both vitamin D deficiency and insulin resistance. The available data from intervention studies are largely confounded, and inadequate considerations of seasonal effects on 25(OH)D concentrations are also a common design flaw in many studies. On the contrary, there is strong evidence that obesity might cause both vitamin D deficiency and insulin resistance, leaving open the possibility that vitamin D and diabetes are not related at all. Although it might seem premature to draw firm conclusions on the role of vitamin D supplementation in reducing insulin resistance and preventing type 2 diabetes, this manuscript will review the circumstances leading to vitamin D deficiency and how such a deficiency can eventually independently affect insulin sensitivity. |
| Lingua: | Inglese |
| Rivista: | |
| Citazione: | Mezza, T., Muscogiuri, G., Sorice, G., Prioletta, A., Salomone, E., Pontecorvi, A., Giaccari, A., Vitamin D deficiency: a new risk factor for type 2 diabetes?, <<ANNALS OF NUTRITION AND METABOLISM>>, 2012; 61 (4): 337-348. [doi:10.1159/000342771] [http://hdl.handle.net/10807/42559] |
| Appare nelle tipologie: | Articolo in rivista, Nota a sentenza |
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