Lipid growth hormone effects

The most promising leads have come from studying the hormonal requirements of the system. By themselves, we can find no indication whatsoever of any growth promotion by any of the alkyl lipides. When gibberellic acid is also applied, response remains small. If indoleacetic acid, or another auxin, is added, the sections show the classic bioassay response—and this is further stimulated by the active lipides. In the presence of both auxin and gibberellic acid, however, the sections show their greatest capacity to elongate still further in the presence of the alkyl lipides (I). Remarkably, the lipides are most effective at concentrations corn-... 

Attanasio AF, Bates PC, Ho KK, Webb SM, Ross RJ, Strasburger CJ, Bouillon R, Crowe B, Selander K, Valle D, Lamberts SWHypoptiuitary Control and Complications Study International Advisory Board. Human growth hormone replacement in adult hypopitui-tary patients long-term effects on body composition and lipid status—3-year results from the HypoCCS Database. J Clin Endocrinol Metab 2002 87(4) 1600-6. 

M.B. Davidson, Effect of growth hormone on carbohydrate and lipid metabolism, Endocrinol. Rev., 1987, 8, 115-131. 

Effect on Lipid Metabolism. The major effect of growth hormone on lipid metabolism is on lipid mobi-... 

In conclusion, the major effect of growth hormone (lipolytic) on lipid metabolism is opposite to that of insulin (stimulates fatty acid deposition). Small doses of growth hormone may elicit an insulinlike effect that is transient, often prolonged by incubation, and replaced by a lipolytic effect. 

Moller N, Jorgensen JOL. Effects of growth hormone on glucose, lipid and protein metabolism in human subjects. Endocr Rev 2009 30 152-77. 

The reported (14) mechanisms of action of allelochemlcals Include effects on root ultrastructure and subsequent Inhibition of Ion absorption and water uptake, effects on hormone-induced growth, alteration of membrane permeability, changes In lipid and organic acid metabolism, inhibition of protein synthesis and alteration of enzyme activity, and effects on stomatal opening and on photosynthesis. Reduced leaf water potential Is one result of treatment with ferulic and p-coumaric acids (15). Colton and Einhellig (16) found that aqueous extracts of velvetleaf (Abutllon theophrastl Medic.) Increased diffusive resistance In soybean fGlycine max. (L.) Merr.] leaves, probably as a result of stomatal closure. In addition, there was evidence of water stress and reduced quantities of chlorophyll In Inhibited plants. 

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