American Institute of Nutrition (1977) Report of the AIN Ad Hoc Committee on Standards for Nutritional Studies. Journal of Nutrition 107, 1340–1348.
Bolze, M. S., Reevers, R. D., Lindbeck, F. E. & Eldeers, M. J. (1985) Influence of selected amino acid deficiencies on somatomedin, growth and glycosaminoglycan metabolism in weanling rats. Journal of Nutrition 115, 782–787.
Chomczynski, P. & Sacchi, N. (1987) Single-step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction. Analytical Biochemistry 162, 156–159.
D'Ercole, A. J., Stiles, A. D. & Underwood, L. E. (1984) Tissue concentrations of somatomedin C: further evidence for multiple sites of synthesis and paracrine or autocrine mechanisms of action. Proceedings of the National Academy of Sciences, U.S.A. 81, 935–939.
Doglio, A., Dani, C., Fredrikson, G., Grimaldi, P. & Ailhaud, G. (1987) Acute regulation of insulin-like growth factor-I gene expression by growth hormone during adipose cell differentiation. EMBO Journal 6, 4011–4016.
Emler, C. A. & Schalch, D. S. (1987) Nutritionally-induced changes in hepatic insulin-like growth factor I (IGF-1) gene expression in rats. Endocrinology 120, 832–834.
Froesch, E. R., Schmid, C., Schwander, J. & Zapf, J. (1985) Actions of insulin-like growth factors. Annual Review of Physiology 47, 443–467.
Hoyt, E. C., Van Wyk, J. J. & Lund, P. K. (1988) Tissue and development specific regulation of a complex family of rat insulin-like growth factor-I messenger ribonucleic acids. Molecular Endocrinology 2, 1077–1086.
Isley, W. L., Underwood, L. E. & Clemmons, D. R. (1983) Dietary components that regulate serum somatomedin-C concentrations in humans. Journal of Clinical Investigation 71, 175–182.
Kato, H., Okoshi, A., Miura, Y. & Noguchi, T. (1990a) A new cDNA clone relating to larger molecular species of rat insulin-like growth factor-I mRNA. Agricultural and Biological Chemistry 54, 1599–1601.
Kato, H., Takenaka, A., Miura, Y., Nishiyama, M. & Noguchi, T. (1990b) Evidence of introduction by molecular cloning of artificial inverted sequence at the 5' terminus of the sense strand of rat insulin-like growth factor-I cDNA. Agricultural and Biological Chemistry 54, 2225–2230.
Lund, P. K., Hoyt, E. C. & Van Wyk, J. J. (1989) The size heterogeneity of rat insulin-like growth factor-I mRNAs is due primarily to differences in the length of 3'-untranslated sequence. Molecular Endocrinology 3, 2054–2061.
Maes, M., Amand, Y., Underwood, L. E., Maiter, D. & Ketelslegers, J.-M. (1988) Decreased serum insulin-like growth factor I response to growth hormone in hypophysectomized rats fed a low protein diet: evidence for a postreceptor defect. Acta Endocrinologica 117, 320–326.
Maiter, D., Fliesen, T., Underwood, L. E., Maes, M., Gerard, G., Davenport, M. I. & Ketelslegers, J.-M. (1989) Dietary protein restriction decreases insulin-like growth factor I independent of insulin and liver growth hormone binding. Endocrinology 124, 2604–2611.
Maniatis, T., Fritsch, E. F. & Sambrook, J. (editors) (1982) Electrophoresis of RNA through gels containing formaldehyde. In Molecular Cloning. A Laboratory Manual pp. 202–203. New York: Cold Spring Harbor Laboratory.
Moats-Staats, B. M., Brady, J. L. Jr, Underwood, L. E. & D'Ercole, A. J. (1989) Dietary protein restriction in artificially reared neonatal rats causes a reduction of insulin-like growth factor-I gene expression. Endocrinology 125, 2368–2374.
Murphy, L. J., Bell, G. I. & Friesen, H. G. (1987) Tissue distribution of insulin-like growth factor I and II messenger ribonucleic acid in the adult rat. Endocrinology 120, 1279–1282.
Phillips, L. S., Orawski, A. T. & Belosky, D. C. (1978) Somatomedin and nutrition. IV. Regulation of somatomedin activity and growth cartilage activity by quantity and composition of diet in rats. Endocrinology 103, 121–127.
Prewitt, T. E., D'Ercole, A. J., Switzer, B. R. & Van Wyk, J. J. (1982) Relationship of serum immunoreactive somatomedin-C to dietary proteins and energy in growing rats. Journal of Nutrition 112, 144–150.
Rinderknecht, E. & Humbel, R. E. (1978) The amino acid sequence of human insulin-like growth factor I and its structural homology with proinsulin. Journal of Biological Chemistry 253, 2769–2776.
Roberts, C. T. Jr, Brown, A. L., Graham, D. E., Seelig, S., Berry, S., Gabbay, K. H. & Rechler, M. M. (1986) Growth hormone regulates the abundance of insulin-like growth factor I RNA in adult rat liver. Journal of Biological Chemistry 261, 10025–10028.
Roberts, C. T. Jr, Lasky, S. R., Lowe, W. L. Jr & LeRoith, D. (1987) Rat IGF-I cDNAs contain multiple 5'- untranslated regions. Biochemical and Biophysical Research Communications 146, 1154–1159.
Rogers, Q. R. & Harper, A. E. (1965) Amino acid diets and maximal growth in the rat. Journal of Nutrition 87, 217–225.
Schwander, J. C., Hauri, C., Zapf, J. & Froesch, E. R. (1983) Synthesis and secretion of insulin-like growth factor and its binding protein by the perfused rat liver: Dependence on growth hormone status. Endocrinology 113, 297–305.
Shimatsu, A. & Rotwein, P. (1987a) Mosaic evolution of the insulin-like growth factors: Organization, sequence and expression of the rat insulin-like growth factor I gene. Journal of Biological Chemisty 262, 7894–7900.
Shimatsu, A. & Rotwein, P. (1987b) Sequence of two rat insulin-like growth factor I mRNA differing within the 5'-untranslated region. Nucleic Acids Research 15, 7196.
Snedecor, G. W. & Cochran, W. G. (1967) One-way classifications. Analysis of variance. In Statistical Methods, 6th ed, pp. 271–273. Ames, Iowa: Iowa State University Press.
Straus, D. S. & Takemoto, C. D. (1990) Effect of fasting on insulin-like growth factor-I (IGF-I) and growth hormone receptor mRNA levels and IGF-I gene transcription in rat liver. Molecular Endocrinology 4, 91–100.
Takahashi, S., Kajikawa, M., Umezawa, T., Takahashi, S.-I., Kato, H., Miura, Y., Nam, T. J., Noguchi, T. & Naito, H. (1990) Effect of dietary proteins on the plasma immunoreactive insulin-like growth factor-1/somatomedin C concentration in the rat. British Journal of Nutrition 63, 521–534.
Van Wyk, J. J. (1984) The somatomedins: Biological actions and physiologic control mechanisms. In Hormonal Proteins and Peptides, vol. XII, pp. 81–125. New York and London: Academic Press.