Disordered insulin secretion in the development of insulin resistance and Type 2 diabetes

C. J. Schofield, C. Sutherland

    Research output: Contribution to journalBook/Film/Article review

    29 Citations (Scopus)

    Abstract

    For many years, the development of insulin resistance has been seen as the core defect responsible for the development of Type2 diabetes. However, despite extensive research, the initial factors responsible for insulin resistance development have not been elucidated. If insulin resistance can be overcome by enhanced insulin secretion, then hyperglycaemia will never develop. Therefore, a ß-cell defect is clearly required for the development of diabetes. There is a wealth of evidence to suggest that disorders in insulin secretion can lead to the development of decreased insulin sensitivity. In this review, we describe the potential initiating defects in Type 2 diabetes, normal pulsatile insulin secretion and the effects that disordered secretion may have on both ß-cell function and hepatic insulin sensitivity. We go on to examine evidence from physiological and epidemiological studies describing ß-cell dysfunction in the development of insulin resistance. Finally, we describe how disordered insulin secretion may cause intracellular insulin resistance and the implications this concept has for diabetes therapy. In summary, disordered insulin secretion may contribute to development of insulin resistance and hence represent an initiating factor in the progression to Type 2 diabetes.
    Original languageEnglish
    Pages (from-to)972-979
    Number of pages8
    JournalDiabetic Medicine
    Volume29
    Issue number8
    DOIs
    Publication statusPublished - 2012

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    Type 2 Diabetes Mellitus
    Insulin Resistance
    Insulin
    Hyperglycemia
    Epidemiologic Studies
    Hepatocytes
    Research

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    abstract = "For many years, the development of insulin resistance has been seen as the core defect responsible for the development of Type2 diabetes. However, despite extensive research, the initial factors responsible for insulin resistance development have not been elucidated. If insulin resistance can be overcome by enhanced insulin secretion, then hyperglycaemia will never develop. Therefore, a {\ss}-cell defect is clearly required for the development of diabetes. There is a wealth of evidence to suggest that disorders in insulin secretion can lead to the development of decreased insulin sensitivity. In this review, we describe the potential initiating defects in Type 2 diabetes, normal pulsatile insulin secretion and the effects that disordered secretion may have on both {\ss}-cell function and hepatic insulin sensitivity. We go on to examine evidence from physiological and epidemiological studies describing {\ss}-cell dysfunction in the development of insulin resistance. Finally, we describe how disordered insulin secretion may cause intracellular insulin resistance and the implications this concept has for diabetes therapy. In summary, disordered insulin secretion may contribute to development of insulin resistance and hence represent an initiating factor in the progression to Type 2 diabetes.",
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    Disordered insulin secretion in the development of insulin resistance and Type 2 diabetes. / Schofield, C. J.; Sutherland, C.

    In: Diabetic Medicine, Vol. 29, No. 8, 2012, p. 972-979.

    Research output: Contribution to journalBook/Film/Article review

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