The effect of the growth hormone of the pond snail Lymnaea stagnalis on periostracum formation

Stress and immune responses in abalone: Limitations in current knowledge and investigative methods based on other models

“…Two growth hormone-like substances have been purified from Haliotis discus hannai [39]. A growth hormone isolated from the neurosecretory cells in the cerebral ganglia of Lymnaea stagnalis stimulated growth of its shell [40] and influenced metabolic pathways, including decreased haemolymph potassium concentration, occasionally enhanced haemolymph glucose concentration, increased storage of polysaccharides in many tissues and a slight decrease in water concentration in some tissues [41]. The effect of stress on the function of these growth hormones has not been examined.…”

Growth hormone-like substance in the rotifer Brachionus plicatilis

“…Growth hormone is commonly found in vertebrates but a GH‐like substance has also been found in invertebrates such as the snail Lymnaea stagnalis, 5 and the extracted protein was capable of stimulating shell calcification, 6 periostracum synthesis, 7 and ornithine decarboxylase activity 8 . Growth hormone ‐like substances have also been found in the abalone Haliotis discus hannai 9,10 and the tapeworm Spirometra mansonoides.…”

Effect of recombinant vertebrate growth hormones on growth of adult abalone, Haliotis kamtschatkana

“…Later, Geraerts (1976) characterized a growth hormone produced by neurosecretory cells in the cerebral ganglia of Lymnaeu stagnaZis. This hormone was subsequently shown to stimulate shell growth (Dogterom et al, 1979;Dogterom and Jentjens, 1980) and to influence certain metabolic pathways (Dogterom, 1980;Dogterom and Robles, 1980). The molluscan hormone, which is an insulin-like peptide, is often referred to as molluscan insulin-like peptide (MIP).…”