Dr. Evelyn Grace T. De Jesus-Ayson is recognized of her significant contributions to the advancement of our knowledge of fish physiology and endocrinology particularly in the delicate balance of hormonal regulation in fish metamorphosis. She has demonstrated that the thyroid hormone (TH) that triggers metamorphosis in flounder larva to the juvenile stage is affected by other hormones. The results of her research have led to the development of a protocol which is now routinely used in the successful rearing of groupers and other economically important related fish species.
Sex: Female
Education:
- Kitasato University, Iwate, Japan, Research Fellow, 1999
- Dept. of Physiology, New Jersey Medical School, New Jersey, USA, Postdoctoral Fellow, 1995
- Ocean Research Institute, University of Tokyo, Tokyo, Japan, Doctor of Science (Zoology), 1993
- Ocean Research Institute, University of Tokyo, Tokyo, Japan, Master of Science (Zoology), 1990
- University of the Philippines at Los Ba?os, College, Laguna, B.S. Biology, 1983
Field of Specialization:
Fish Physiology, Endocrinology, Biotechnology, Aquaculture, Fisheries
Researches:
Ayson, F.G., de Jesus, E.G.T., Moriyama, S., Hyodo, S., Funkenstein, B., Gertler, A., Kawauchi, H., (2002) Differential expression of insulin like growth factor I and II mRNAs during embryogenesis and early larval develoopment in rabbitfish (Siganus guttatus)
General and Comparative Endocrinology Volume 126
de Jesus, E.G.T., Ayson, F.G., Amemiya, Y., Moriyama, S., Hyodo, S., Hirano, T., Kawauchi, H., (2002) Milkfish (Chanos-chanos) growth hormone cDNA cloning and mRNA expression in embryos and early larval stages
Aquaculture Volume 208
Ayson, F.G. de Jesus, E.G.T. Amemiya, Y. Moriyama, S. Hirano, T. Kawauchi, H., (2000) Isolation, cDNA cloning and growth promoting activity of rabbitfish (Siganus guttatus) growth hormone
General and Comparative Endocrinology Volume 117
Ayson, F.G., de Jesus, E.G.T., Amemiya, Y., Moriyama, S., Hirano, T., Kawauchi, H., (1999) Isolation and cDNA cloning of somatoclactin in rabbitfish (Siganus guttatus)
General and Comparative Endocrinology Volume 115
de Jesus, E.G.T., Toledo, J.D., Simpas, M.S., (1998) Thyroid hormones promote early metamorphosis in grouper (Epinephelus coioides) larvae
General and Comparative Endocrinology Volume 112
de Jesus, E.G.T., (1994) The antimetamorphic effect of prolactin in the Japanese flounder
General and Comparative Endocrinology Volume 93
de Jesus, E.G.T., Hirano, T., Inui, Y., (1993) Flounder metamorphosis: Its regulation by various hormones
Fish Physiology and Biochemistry Volume 11
Naito, N., de Jesus, E.G.T., Nakai, Y., Hirano, T., (1993) Ontogeny of pituitary cell types and the hypothalamo-hypophyseal relationship during early development of chum salmon, Oncorhynchus keta
Cell and Tissue Research Volume 272
Nishioka, R.S., de Jesus, E.G.T., Hyoddo, S., (1993) Localization of a pair of prolactins and growth hormone in the tilapia pituitary using situ hybridization with oligonucleotide probes
General and Comparative Endocrinology Volume 89
de Jesus, E.G.T., (1994) Thyroid hormones surge during milkfish metamorphosis
Israel Journal of Aquaculture Volume 46
de Jesus, E.G.T., Hirano, T., (1992) Changes in whole body concentrations of thyroid hormones, cortisol and sex steroids during early development of the chum salmon, Oncorhynchus keta
General and Comparative Endocrinology Volume 85
Hirano, T., Inui, Y., (1992) Gonadal steroids delay spontaneous metamorphosis and inhibit T3-induced fin ray shortening in vitro
Zoological Science Volume 9
de Jesus, E.G.T., Hirano, T., Inui, Y., (1991) Changes in cortisol and thyroid hormone concentrations during early development and metamorphosis in the Japanese flounder, Paralichthys olivaceus
General and Comparative Endocrinology Volume 82
Yamano, K., Tagawa, M., de Jesus, E.G.T., (1991) Changes in whole body concentrations of thyroid hormones and cortisol in metamorphosing conger eel
Journal of Comparative Physiology B Volume 161
de Jesus, E.G.T, Inui, Y. Hirano, T., (1990) Cortisol enhances the stimulatory action of thyroid hormones on dorsal fin ray resorption of flounder larvae in vitro
General and Comparative Endocrinology Volume 79
Parado-Estepa, F.D., de Jesus, E.G.T., Ladja, J.M., Ferraris, R.P., (1989) Effect of salinity on hemolymph calcium concentration during the molt cycle of the prawn Penaeus monodon
Marine Biology Volume 2
Ferraris, R.P., Parado-Estepa, F.D., de Jesus, E.G.T., Ladja, J.M., (1987) Osmotic and chloride regulation in the hemolymph of the tiger prawn Penaeus monodon during molting in various salinities
Marine Biology Volume 95
Parado-Estepa, F.D. Ferraris, R.P. Ladja, J.M. de Jesus, E.G.T., (1987) Responses of intermolt Penaeus indicus to large fluctuations in environmental salinity
Aquaculture Volume 64
Tagawa, M., Miwa, S., Inui, Y., de Jesus, E.G.T., Hirano, T., (1990) Changes in thyroid hormone concentrations during early development and metamorphosis of the flounder, Paralichthys olivaceus
Zoological Science Volume 7
Ferraris, R.P., Parado-Estepa, F.D., de Jesus, E.G.T., Ladja, J.M., (1986) Osmoregulation in Penaeus monodon : Effects of molting and external salinity
The First Asian Fisheries Forum (J.L. Mclean, L.B. Dizon and L.V. Hosillos, Eds.)
Ferraris, R.P., Parado-Estepa, F.D., Ladja, J.M., de Jesus, E.G.T., (1986) Effects of salinity on the osmotic, chloride, total protein and calcium concentrations in the hemolymph of the prawn Penaes monodon (Fabricius)
Comparative Biochemistry and Physiology A. Volume 83
Papers Presented:
- Growth enhancement in rabbitfish, Siganus guttatus, 70th Anniversary of the Japanese Society of Fisheries Science held at Pacifico Yokohama, Yokohama, Japan
- Production of recombinant milkfish growth hormone, 27th Annual Convention of the Philippine Society for Biochemistry and Molecular Biology held at SEAFDEC Aquaculture Department, Tigbauan, Iloilo
- Rabbitfish IGF-I and II: Cloning and expression during early larval stages, 27th Annual Convention of the Philippine Society for Biochemistry and Molecular Biology held at SEAFDEC Aquaculture Department, Tigbauan, Iloilo
- Milkfish growth hormone and insulin-like growth factor I: Cloning and expression in embryos and larvae, 4th International Symposium on Fish Endocrinology held at the University of Washington, Seattle, Washington, U.S.A. on July 31-August 3, 2000.
- Growth hormone and insulin-like growth factor I and II expression during early development in rabbitfish, 4th International Symposium on Fish Endocrinology held at the University of Washington, Seattle, Washington, U.S.A.
- Growth hormone and prolactin are expressed during embryonic and early larval stages of milkfish, Chanos chanos, 4th Congress of the Asia Oceania Society for Comparative Endocrinology held at the Academia Sinica, Taiwan
- Cloning of growth hormone and insulin-like growth factor I cDNAs in milkfish, Chanos chanos, 24th Annual Meeting of the Japan Society for Comparative Endocrinology held in Nagoya
- Isolation and cDNA cloning of rabbitfish (Siganus guttatus) somatolactin, 24th Annual Meeting of the Japan Society for Comparative Endocrinology held in Nagoya
- Rabbitfish (Siganus guttatus) growth hormone: isolation, purification and cloning of cDNA, 23rd Annual Meeting of the Japan Society for Comparative Endocrinology held in Kamaishi
- Molecular cloning of cDNA encoding milkfish (Chanos chanos) insulin-like growth factor-I, International Union of Biological Sciences - Reproductive Biology in Aquaculture Workshop held at the Department of Biological Sciences, National University of Singapore
- Molecular cloning of growth hormone cDNA in the rabbitfish, Siganus guttatus, 5th Asian Fisheries Forum held at the Lotus Hotel Pang Suan Kaew, Changmai, Thailand
- Involvement of thyroid hormones and cortisol in fish development, 3rd Ocean Research Institute Symposium on Strategy for Environmental Adaptation of Fishes held at Yoyogi Olympics Memorial Youth Center, Tokyo, Japan
- Do thyroid hormones play a role in metamorphosis of the grouper, Epinephelus coioides? , 3rd Congress of the Asia Oceania Society for Comparative Endocrinology held at Macquarie University, Sydney, Australia
- The thyroid hormone monodeiodination system during flounder metamorphosis, Meeting on the Application of Endocrinology to Pacific Rim Aquaculture held at the Bodega Marine Laboratory, University of California at Davis, California, U.S.A.
- Hormonal control of fin ray resorption during flounder metamorphosis, U.S.-Japan Meeting on New Approaches to Developmental Endocrinology held at The Maui Marriott Hotel, Hawaii, U.S.A.
- Thyroid hormone monodeiodinase activity during metamorphosis in the Japanese flounder, Paralichthys olivaceus, 2nd Intercongress Symposium of the Asia Oceania Society for Comparative Endocrinology held at Chiangmai, Thailand
- Flounder metamorphosis: Its regulation by various hormones, 2nd International Symposium on Fish Endocrinology held at Palais du Grand Large, Saint-Malo, France
- Changes in monodeiodinase activities during flounder metamorphosis, 63rd Annual Meeting of the Zoological Society of Japan held in Sendai
- Hormonal regulation of flounder metamorphosis , 2nd Congress of the Asia Oceania Society for Comparative Endocrinology held at Holiday Inn Crown Plaza Hotel, New Delhi, India
- Prolactin, growth hormone and flounder metamorphosis, 62nd Annual Meeting of the Zoological Society of Japan held in Okayama
- Hormonal interaction during flounder metamorphosis, 2nd Ocean Research Institute Symposium on Fish Endocrinology held at the Ocean Research Institute, University of Tokyo, Tokyo, Japan
- Changes in whole body concentrations of thyroid hormones and cortisol during early development and metamorphosis in the flounder and chum salmon, 15th Annual Meeting of the Japan Society for Comparative Endocrinology, Yamanashi
- Antimetamorphic actions of prolactin and sex steroids in the flounder, 61st Annual Meeting of the Zoological Society of Japan held in Niigata
- Thyroid hormone and cortisol interaction in metamorphosing Japanese flounder, Paralichthys olivaceus, 1st Inter-congress Symposium of the Asia Oceania Society for Comparative Endocrinology held at the University of Hong Kong, Hong Kong
- Development of the hypothalamo-hypophysial relationship in salmon, Oncorhynchus keta, 60th Annual Meeting of the Zoological Society of Japan held in Kyoto
- Effects of Thyroid Hormones and Cortisol on Resorption of Fins in Flounder Larvae in Vitro , 13th Annual Meeting of the Japan Society for Comparative Endocrinology, Nara,
- Effects of thyroid hormones and cortisol on fin resorption in P. Olivaceus: an in vitro study, 59th Annual Meeting of the Zoological Society of Japan held in Sapporo