Nath , and
نویسنده
چکیده
Hypophysectomy is known to cause complete suppression of the hepatic synthesis az,-globulin. The effect of hypophysectomy on the synthesis of azu-globulin can be reversed by multiple hormone treatment. The role of pituitary growth hormone in the multihormonal regulation of aZ,-globulin in rat liver was examined in the hypophysectomized male rats with and without growth hormone supplementation. Daily treatment of hypophysectomized rats with 5a-dihydrotestosterone, corticosterone, thyroxine, and growth hormone for 8 days caused about 80% recovery in the hepatic content of azu-globulin and its corresponding mRNA as determined by radioimmunoassay, in vitro translation, and liquid hybridization with a cloned cDNA probe. However, omission of growth hormone from the treatment regimen failed to raise hepatic azu-globulin and its mRNA to more than 5% of the normal control. The possible effect of growth hormone on the translation of the mRNA for aZ,-globulin was examined with cultured hepatocytes derived from growth hormone-deficient rats. Culture of these cells in the presence of growth hormone for 24 h did not turn on the synthesis of aZuglobulin. These results indicate that growth hormone regulates the synthesis of azu-globulin by acting at a step antecedent to mRNA translation.
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Spatial modulation of second-harmonic generation via nonlinear Raman-Nath diffraction in an aperiodically poled lithium tantalite.
We propose and experimentally demonstrate a colorful nonlinear Raman-Nath second-harmonic generation by engineering the quadratic nonlinearity χ((2)) in an aperiodically poled lithium tantalite. The engineered nonlinear structure allows multicolored Raman-Nath second-harmonic signal outputs along a uniform direction, which cannot be achieved in a uniform nonlinear grating. The diffraction angle...
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Hawk, P. B., Oser, L. B. & Summerson, W. H. (1947). Practical Phyiological Chemi8try, 12th ed., p. 1273. London: J. and A. Churchill Ltd. Koszewski, B. J. (1952). Blood, 7, 1182. Leaf, G. & Neuberger, A. (1947). Biochem. J. 41, 280. Lindon, 0. & Work, E. (1953). Biochem. J. 55, 554. Nath, M. C. & Behki, R. M. (1958). Arch. Biochem. Biophy8. 73, 65. Nath, M. C., Chitale, R. P. & Belavady, B. (19...
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1National Center of Cardiology and Internal Medicine, Togolok, Kyrgyzstan 2Institute of Postgraduate Medical Education and Research, Kolkata, West Bengal, India 3Department of Statistics, University of Burdwan, Golapbag, Rajbati, West Bengal, India *Corresponding author: Rabindra Nath Das, Department of Statistics, University of Burdwan, Burdwan, West Bengal, India, Tel: +91-9232638970; Fax: +9...
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