IGF-1 and Kidney Health

IGF-1 and IGFBP (Insulin-like Growth Factor Binding Protein) axis plays a critical role in the maintenance of normal kidney function and progression of chronic kidney disease (CKD). [174] In fact, the levels of IGF-1 and IGFBPs are altered in different stages of CKD. One study revealed that short-term administration of recombinant IGF-1 (rhIGF-1) in patients with end-stage renal disease (ESRD) and in healthy subjects has been shown to increase glomerular filtration rate (GFR) and blood flow to the kidneys. [175] In another study, Vijayan et al. reported that IGF-1 supplementation in 15 patients with advanced CKD at a dose of 100 micrograms per kilogram twice daily for 31 days improved the kidney’s ability to filter waste products and toxins as evidenced by an increase in GFR. [176] Other clinical trials assessing the therapeutic benefits of IGF-1 supplementation in patients with kidney disorders have also shown that the treatment may help improve symptoms and overall kidney function. [177-186]

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