The IGF-I axis in kidney and skeletal muscle of potassium deficient rats.
The IGF-I axis in kidney and skeletal muscle of potassium deficient rats.
复制标题
缺钾大鼠肾脏和骨骼肌中的 IGF-I 轴。
DOI:
10.1038/ki.1997.342
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发表时间:
1997
影响因子:
19.6
通讯作者:
R. Rabkin
中科院分区:
文献类型:
--
作者:
F. Hsu;T. Tsao;R. Rabkin
Potassium deficiency in the rat results in growth retardation, muscle wasting and renal hypertrophy. This study tests the thesis that K deficiency leads to tissue distinct changes in the local IGF-I system and cell sensitivity to IGF-I that favors renal enlargement on the one hand and impaired muscle growth on the other. In rats after eight days of K deficiency, compared to pair-fed control rats, food utilization and muscle and body wt gain were attenuated while the kidneys enlarged. In muscle GH receptor and IGF-I gene expression, IGF-I peptide and IGF binding protein-5 (IGFBP) levels were decreased. Together with reduced food utilization, these changes may contribute to the attenuated muscle growth. In the enlarged kidneys despite a fall in IGF-I mRNA level, IGF-I peptide concentration was increased more than twofold. This increase in IGF-I could be caused by the increase in kidney IGFBP-1 gene and protein expression and the decrease in kidney IGF-I degrading activity noted in K deficiency. Treatment with IGF-I failed to induce body or muscle growth, but induced a further increase in kidney size and enlargement of the spleen. Thus, in K deficiency the spontaneous increase in IGF-I levels in the kidney that is IGF-I sensitive may well be a cause of the renal hypertrophy.
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影响因子:
20.3
作者:
John I. Jones;D. Clemmons
通讯作者:
John I. Jones;D. Clemmons
DOI:
10.1681/asn.v651511
发表时间:
1995
期刊:
Journal of the American Society of Nephrology : JASN
影响因子:
--
作者:
Rabkin,R;Brody,M;Lu,LH;Chan,C;Shaheen,AM;Gillett,N
通讯作者:
Gillett,N
影响因子:
4.8
作者:
Young,SC;Miles,MV;Clemmons,DR
通讯作者:
Clemmons,DR
影响因子:
19.6
作者:
Tsao,T;Wang,J;Fervenza,FC;Vu,TH;Jin,IH;Hoffman,AR;Rabkin,R
通讯作者:
Rabkin,R
DOI:
10.1152/ajpendo.1992.262.4.e406
发表时间:
1992
期刊:
The American journal of physiology
影响因子:
--
作者:
Thissen,JP;Davenport,ML;Pucilowska,JB;Miles,MV;Underwood,LE
通讯作者:
Underwood,LE