Search Results - "Somoza, G. M"

Gonadotrophin-Inhibitory Hormone in the Cichlid Fish Cichlasoma dimerus: Structure, Brain Distribution and Differential Effects on the Secretion of Gonadotrophins and Growth Hormone by Di Yorio, M. P., Pérez Sirkin, D. I., Delgadin, T. H., Shimizu, A., Tsutsui, K., Somoza, G. M., Vissio, P. G.

“…The role of gonadotrophin‐inhibitory hormone (GnIH) in the inhibition of the reproductive axis has been well‐established in birds and mammals. However, its…”
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Implications of climate change for the reproductive capacity and survival of New World silversides (family Atherinopsidae) by Strüssmann, C. A., Conover, D. O., Somoza, G. M., Miranda, L. A.

“…The New World silversides (family Atherinopsidae) are found in marine, estuarine and inland waters of North, Central and South America, where they are…”
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The Secretogranin II-Derived Peptide Secretoneurin Stimulates Luteinizing Hormone Secretion from Gonadotrophs by Zhao, E, Basak, A, Wong, A. O. L, Ko, W, Chen, A, López, G. C, Grey, C. L, Canosa, L. F, Somoza, G. M, Chang, J. P, Trudeau, V. L

“…Secretoneurin (SN) is a 33- to 34-amino acid neuropeptide derived from secretogranin-II, a member of the chromogranin family. We previously synthesized a…”
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Effects of light and temperature conditions on the expression of GnRH and GtH genes and levels of plasma steroids in Odontesthes bonariensis females by Miranda, L. A., Strüssmann, C. A., Somoza, G. M.

“…In this study we examined the endocrine mediation between environmental factors (temperature and photoperiod) and the brain–pituitary–gonadal axis in females…”
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Forebrain mapping of secretoneurin-like immunoreactivity and its colocalization with isotocin in the preoptic nucleus and pituitary gland of goldfish by Canosa, L.F., Lopez, G.C., Scharrig, E., Lesaux-Farmer, K., Somoza, G.M., Kah, O., Trudeau, V.L.

“…Secretoneurin, a 33–34 amino acid neuropeptide derived from the proteolytic processing of the secretogranin‐II precursor protein, is reasonably well conserved…”
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mRNA expression of GnRH variants and receptors in the brain, pituitary and ovaries of pejerrey (Odontesthes bonariensis) in relation to the reproductive status by Guilgur, L. G, Strüssmann, C. A, Somoza, G. M

“…The present study examined the differential mRNA expression levels of three forms of GnRH (sGnRH, pjGnRH and cGnRH-II) and two forms of GnRH receptor (pjGnRH-R…”
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The central nervous system acts as a transducer of stress-induced masculinization through corticotropin-releasing hormone B by Castañeda Cortés, Diana C, Padilla, Luisa F Arias, Langlois, Valérie S, Somoza, Gustavo M, Fernandino, Juan I

“…Exposure to environmental stressors, such as high temperature (HT), during early development of fish induces sex reversal of genotypic females. Nevertheless,…”
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Risks associated with introduction of poeciliids for control of mosquito larvae: first record of the non‐native Gambusia holbrooki in Argentina by Cabrera, M. B., Bogan, S., Posadas, P., Somoza, G. M., Montoya‐Burgos, J. I., Cardoso, Y. P.

“…This study confirms the presence of two species of the non‐native mosquitofish Gambusia in Argentina. The risks that they represent to native biota, their…”
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Dietary l-tryptophan modulates agonistic behavior and brain serotonin in male dyadic contests of a cichlid fish by Morandini, L., Ramallo, M. R., Scaia, M. F., Höcht, C., Somoza, G. M., Pandolfi, M.

“…Although some studies have investigated the effects of dietary l -tryptophan on agonistic behavior, research on adult fish specimens is still lacking…”
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Dmrt1 expression analysis during spermatogenesis in pejerrey, Odontesthes bonariensis by Fernandino, J. I., Guilgur, L. G., Somoza, G. M.

“…Dmrt1, a putative transcription factor with a DM-binding motif (called the DM domain), is generally considered to be exclusively expressed in testicular…”
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Experimental data supporting the expression of the highly conserved GnRH-II in the brain and pituitary gland of rats by Mongiat, L.A., Fernández, M.O., Lux-Lantos, V.A.R., Guilgur, L.G., Somoza, G.M., Libertun, C.

“…The second GnRH form, originally identified in chickens (cGnRH-II or GnRH-II), is the most ubiquitous peptide of the GnRH neuropeptide family, being present…”
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Molecular cloning, expression and immunological characterization of pejerrey (Odontesthes bonariensis) growth hormone by Sciara, A.A., Rubiolo, J.A., Somoza, G.M., Arranz, S.E.

“…Growth hormone is an essential polypeptide required for normal growth and development of vertebrates. The pejerrey fish, Odontesthes bonariensis, is a South…”
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Reproductive biology of the angular angel shark Squatina guggenheim (Chondrichthyes: Squatinidae) off Patagonia (Argentina, southwestern Atlantic) by Awruch, CA, Lo Nostro, F, Somoza, GM, Di Giacomo, E

“…The reproductive biology of the angel shark Squatina guggenheim was described based on 584 animals sampled in the San Matías Gulf, Argentina, between January…”
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Natural spawning and intensive culture of pejerrey Odontesthes bonariensis juveniles by Miranda, L A, Berasain, G E, Velasco, C A M, Shirojo, Y, Somoza, G M

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Expression of Pejerrey Gonadotropin-Releasing Hormone in Three Orders of Fish by SOMOZA, G. M, LESCHEID, D. W, MIRANDA, L. A, LO NOSTRO, F. L, MAGLIULO-CEPRIANO, L, MONTANER, A. D, SCHREIBMAN, M. P, RIVIER, J. E, SHERWOOD, N. M

“…Molecular variants of GnRH were characterized by reverse-phase, high-performance liquid chromatography from brain extracts of fish in three different orders:…”
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Differential gonadotropin releasing hormone (GnRH) expression, autoregulation and effects in two models of rat luteinized ovarian cells by Sorianello, E.M., Fernandez, M.O., Catalano, P.N., Mongiat, L.A., Somoza, G.M., Libertun, C., Lux-Lantos, V.A.

“…GnRH has been suggested to participate in corpus luteum function. Here we studied the expression of GnRH mRNA and peptide in two models of rat luteinized…”
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Melanin concentrating hormone (MCH) is involved in the regulation of growth hormone in Cichlasoma dimerus (Cichlidae, Teleostei) by Pérez Sirkin, D.I, Cánepa, M.M, Fossati, M, Fernandino, J.I, Delgadin, T, Canosa, L.F, Somoza, G.M, Vissio, P.G

“…Highlights ► The MCH and GH sequence is reported for the first time in Cichlasoma dimerus . ► Double immunofluorescence showing clear contacts among MCH fibers…”
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Dimorphic expression of dmrt1 and cyp19a1 (ovarian aromatase) during early gonadal development in pejerrey, Odontesthes bonariensis by Fernandino, J I, Hattori, R S, Shinoda, T, Kimura, H, Strobl-Mazzulla, P H, Strüssmann, C A, Somoza, G M

“…The pejerrey (Odontesthes bonariensis) is a teleost fish with strong temperature-dependent sex determination (TSD). Several studies have shown that dmrt1 and…”
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Gonadotropin-releasing hormone (GnRH) neuronal systems in the pejerrey, Odontesthes bonariensis (Atheriniformes) by Stefano, Av, Aldana-marcos, Hj, Affanni, Jm, Somoza, Gm

“…The brain of the pejerrey (Odontesthes bonariensis) has recently been shown to contain three forms of gonadotropin-releasing hormone (GnRH): salmon GnRH…”
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Analysis of sexually dimorphic expression of genes at early gonadogenesis of pejerrey Odontesthes bonariensis using a heterologous microarray by Fernandino, J I, Popesku, J T, Paul-Prasanth, B, Xiong, H, Hattori, R S, Oura, M, Strüssmann, C A, Somoza, G M, Matsuda, M, Nagahama, Y, Trudeau, V L

“…The process of morphological development of a differentiated gonad from an undifferentiated primordium is a very important step of gonadogenesis. Studies on…”
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