TY - JOUR
T1 - The Ob protein (leptin) and the kidney
AU - Sharma, Kumar
AU - Considine, Robert V.
N1 - Funding Information:
This work was supported in part by grants KO8 DK02308-01 (KS) and R29 DK51140 (RVC) from the National Institutes of Health and a grant from the American Diabetes Association (RVC). We gratefully acknowledge the advice and comments of Dr. Jose Caro. We also thank Elisabeth deLancey for her preparation of Figure 1 .
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1998
Y1 - 1998
N2 - Mutation of the Ob gene, which encodes for leptin, or mutation of the leptin receptor leads to obesity in mice. Humans, for the most part, have a positive correlation of leptin with body fat mass suggesting possible defects in leptin effector mechanisms that may contribute to obesity. As patients on hemodialysis have difficulty with appetite, we investigated whether leptin is cleared by the kidney and is elevated in hemodialysis patients. In patients with intact renal function there was a net renal uptake of 12% of circulating leptin, whereas in patients with renal insufficiency there was no renal uptake of leptin. In a separate cohort of 36 patients with end-stage renal disease (ESRD), peripheral leptin levels factored for body mass index was increased by fourfold as compared to a group of healthy controls (N = 338). The leptin receptor exists in a long and short form, with the long form primarily expressed in the hypothalamus but also in the lungs and kidneys of the mouse. Further studies are necessary to clarify the role of leptin in regulating appetite in patients with ESRD and the role of leptin in directly affecting kidney function via its receptors.
AB - Mutation of the Ob gene, which encodes for leptin, or mutation of the leptin receptor leads to obesity in mice. Humans, for the most part, have a positive correlation of leptin with body fat mass suggesting possible defects in leptin effector mechanisms that may contribute to obesity. As patients on hemodialysis have difficulty with appetite, we investigated whether leptin is cleared by the kidney and is elevated in hemodialysis patients. In patients with intact renal function there was a net renal uptake of 12% of circulating leptin, whereas in patients with renal insufficiency there was no renal uptake of leptin. In a separate cohort of 36 patients with end-stage renal disease (ESRD), peripheral leptin levels factored for body mass index was increased by fourfold as compared to a group of healthy controls (N = 338). The leptin receptor exists in a long and short form, with the long form primarily expressed in the hypothalamus but also in the lungs and kidneys of the mouse. Further studies are necessary to clarify the role of leptin in regulating appetite in patients with ESRD and the role of leptin in directly affecting kidney function via its receptors.
KW - End stage renal failure
KW - Hemodialysis
KW - Leptin
KW - Obesity
KW - Progression of renal disease
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U2 - 10.1046/j.1523-1755.1998.00929.x
DO - 10.1046/j.1523-1755.1998.00929.x
M3 - Article
C2 - 9607179
AN - SCOPUS:0031747816
VL - 53
SP - 1483
EP - 1487
JO - Kidney International
JF - Kidney International
SN - 0085-2538
IS - 6
ER -