Search Results - "Selvaraj, Sethu"

The Roles of Kisspeptin System in the Reproductive Physiology of Fish With Special Reference to Chub Mackerel Studies as Main Axis by Ohga, Hirofumi, Selvaraj, Sethu, Matsuyama, Michiya

“…Kisspeptin, a novel neuropeptide product of the gene, activates the G protein-coupled membrane receptor G protein-coupled receptor 54 (now termed Kiss1r). Over…”
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Molecular characterization and functional analysis of pituitary GnRH receptor in a commercial scombroid fish, chub mackerel ( Scomber japonicus ) by Lumayno, Sanny David Pacheco, Ohga, Hirofumi, Selvaraj, Sethu, Nyuji, Mitsuo, Yamaguchi, Akihiko, Matsuyama, Michiya

“…Highlights • The present GnRH receptor can be activated by different GnRH peptides. • All three GnRH ligands stimulate LH release in vitro. • mRNA expression…”
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Functional analysis of kisspeptin peptides in adult immature chub mackerel (Scomber japonicus) using an intracerebroventricular administration method by Ohga, Hirofumi, Selvaraj, Sethu, Adachi, Hayato, Imanaga, Yui, Nyuji, Mitsuo, Yamaguchi, Akihiko, Matsuyama, Michiya

“…In vertebrates (including teleosts), the pivotal hierarchical factor in the control of gonadotropin secretion is the hypothalamic gonadotropin-releasing…”
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Molecular characterization, tissue distribution, and mRNA expression profiles of two Kiss genes in the adult male and female chub mackerel ( Scomber japonicus) during different gonadal stages by Selvaraj, Sethu, Kitano, Hajime, Fujinaga, Yoichiro, Ohga, Hirofumi, Yoneda, Michio, Yamaguchi, Akihiko, Shimizu, Akio, Matsuyama, Michiya

“…Abstract Kisspeptins, encoded by the Kiss1 gene, have emerged as key modulators of reproduction in mammals. In contrast to the placental mammals, some teleosts…”
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Identification, characterization, and expression profiles of two subtypes of kisspeptin receptors in a scombroid fish (chub mackerel) by Ohga, Hirofumi, Fujinaga, Yoichiro, Selvaraj, Sethu, Kitano, Hajime, Nyuji, Mitsuo, Yamaguchi, Akihiko, Matsuyama, Michiya

“…Highlights • We cloned and characterized the two subtypes of full-length kissr cDNA from chub mackerel brain. • In female brain, both kissr genes significantly…”
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Peripheral administration of Kiss1 pentadecapeptide induces gonadal development in sexually immature adult scombroid fish by Selvaraj, Sethu, Ohga, Hirofumi, Kitano, Hajime, Nyuji, Mitsuo, Yamaguchi, Akihiko, Matsuyama, Michiya

“…Kisspeptins have emerged as potent regulators of the reproductive brain-pituitary-gonad (BPG) axis. Our previous study demonstrated that the brain of the chub…”
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Increased expression of kisspeptin and GnRH forms in the brain of scombroid fish during final ovarian maturation and ovulation by Selvaraj, Sethu, Kitano, Hajime, Amano, Masafumi, Ohga, Hirofumi, Yoneda, Michio, Yamaguchi, Akihiko, Shimizu, Akio, Matsuyama, Michiya

“…Kisspeptins (Kiss) are prime players in the control of reproductive function through their regulation of gonadotropin-releasing hormone (GnRH) expression in…”
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mRNA levels of kisspeptins, kisspeptin receptors, and GnRH1 in the brain of chub mackerel during puberty by Ohga, Hirofumi, Adachi, Hayato, Matsumori, Kojiro, Kodama, Ryoko, Nyuji, Mitsuo, Selvaraj, Sethu, Kato, Keitaro, Yamamoto, Shinji, Yamaguchi, Akihiko, Matsuyama, Michiya

“…Kisspeptin (Kiss) and its cognate receptor (Kiss1R), implicated in the neuroendocrine control of GnRH secretion in mammals, have been proposed to be the key…”
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Molecular characterization and expression profiles of three GnRH forms in the brain and pituitary of adult chub mackerel (Scomber japonicus) maintained in captivity by Selvaraj, Sethu, Kitano, Hajime, Amano, Masafumi, Nyuji, Mitsuo, Kaneko, Kensuke, Yamaguchi, Akihiko, Matsuyama, Michiya

“…Gonadotropin-releasing hormone (GnRH) is a key neuroendocrine peptide involved in the reproduction of fish and other vertebrates. However, characterizing the…”
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Identification and distribution of three gonadotropin-releasing hormone (GnRH) isoforms in the brain of a clupeiform fish, Engraulis japonicus by Sukhan, Zahid Parvez, Kitano, Hajime, Selvaraj, Sethu, Yoneda, Michio, Yamaguchi, Akihiko, Matsuyama, Michiya

“…To gain a better understanding of the reproductive endocrinology of a primitive order clupeiform fish (Japanese anchovy, Engraulis japonicus), cDNAs encoding…”
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Changes in the expression of pituitary gonadotropin subunits during reproductive cycle of multiple spawning female chub mackerel Scomber japonicus by Nyuji, Mitsuo, Selvaraj, Sethu, Kitano, Hajime, Ohga, Hirofumi, Yoneda, Michio, Shimizu, Akio, Kaneko, Kensuke, Yamaguchi, Akihiko, Matsuyama, Michiya

“…The endocrine regulation of reproduction in a multiple spawning fish with an asynchronous-type ovary remains largely unknown. The objectives of this study were…”
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Steroidogenic and maturation-inducing potency of native gonadotropic hormones in female chub mackerel, Scomber japonicus by Ohga, Hirofumi, Kaneko, Kensuke, Shimizu, Akio, Kitano, Hajime, Selvaraj, Sethu, Nyuji, Mitsuo, Adachi, Hayato, Yamaguchi, Akihiko, Matsuyama, Michiya

“…The gonadotropins (GtHs), follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are produced in the pituitary gland and regulates gametogenesis…”
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Immunoreactive changes in pituitary FSH and LH cells during seasonal reproductive and spawning cycles of female chub mackerel Scomber japonicus by Nyuji, Mitsuo, Shiraishi, Tetsuro, Selvaraj, Sethu, Van In, Vu, Kitano, Hajime, Yamaguchi, Akihiko, Okamoto, Kumiko, Onoue, Shizumasa, Shimizu, Akio, Matsuyama, Michiya

“…The physiological functions of pituitary gonadotropins (GtHs) are well established in higher vertebrates, whereas those in teleosts are still poorly…”
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Immunoreactivity of gonadotrophs (FSH and LH Cells) and gonadotropin subunit gene expression in the male chub mackerel Scomber japonicus pituitary during the reproductive cycle by Nyuji, Mitsuo, Selvaraj, Sethu, Kitano, Hajime, Shiraishi, Tetsuro, Yamaguchi, Akihiko, Shimizu, Akio, Matsuyama, Michiya

“…The gonadotropins (GtHs), follicle-stimulating hormone (FSH) and luteinizing hormone (LH), are heterodimers composed of a common α subunit (GPα) and a unique β…”
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Immunological characterization and distribution of three GnRH forms in the brain and pituitary gland of chub mackerel (Scomber japonicus) by Selvaraj, Sethu, Kitano, Hajime, Fujinaga, Yoichiro, Amano, Masafumi, Takahashi, Akiyoshi, Shimizu, Akio, Yoneda, Michio, Yamaguchi, Akihiko, Matsuyama, Michiya

“…The presence of three gonadotropin-releasing hormone (GnRH) forms in the brain of the chub mackerel, Scomber japonicus, namely, salmon GnRH (sGnRH), chicken…”
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Expression changes of mRNAs encoding kisspeptins and their receptors and gonadotropin-releasing hormones during early development and gonadal sex differentiation periods in the brain of chub mackerel ( Scomber japonicus ) by Selvaraj, Sethu, Kitano, Hajime, Ohga, Hirofumi, Yamaguchi, Akihiko, Matsuyama, Michiya

“…Highlights • Expression changes of mRNAs were analyzed during early development and gonadal sex differentiation. • Expression of kiss , kissr , and gnrh mRNAs…”
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Dynamics of gonadosomatic index of fish with indeterminate fecundity between subsequent egg batches: application to Japanese anchovy Engraulis japonicus under captive conditions by Yoneda, Michio, Kitano, Hajime, Selvaraj, Sethu, Matsuyama, Michiya, Shimizu, Akio

“…The gonadosomatic index (GSI) is widely used as a simple measure of reproductive capacity, but its validity has often been questioned. This study showed the…”
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Effects of synthetic kisspeptin peptides and GnRH analogue on oocyte growth and circulating sex steroids in prepubertal female chub mackerel (Scomber japonicus) by Selvaraj, Sethu, Ohga, Hirofumi, Nyuji, Mitsuo, Kitano, Hajime, Nagano, Naoki, Yamaguchi, Akihiko, Matsuyama, Michiya

“…In recent years, kisspeptin peptides, encoded by kiss genes have been used to manipulate reproductive processes in farmed animals, including fish. Our previous…”
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Temperature- and income resource availability-mediated variation in reproductive investment in a multiple-batch-spawning Japanese anchovy by Yoneda, Michio, Kitano, Hajime, Tanaka, Hiroshige, Kawamura, Kohei, Selvaraj, Sethu, Ohshimo, Seiji, Matsuyama, Michiya, Shimizu, Akio

“…Multiple batch spawning over a season should have an advantage for maternal fitness in unpredictable environments, but the manner in which females allocate…”
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Subcutaneous administration of Kiss1 pentadecapeptide accelerates spermatogenesis in prepubertal male chub mackerel (Scomber japonicus) by Selvaraj, Sethu, Ohga, Hirofumi, Nyuji, Mitsuo, Kitano, Hajime, Nagano, Naoki, Yamaguchi, Akihiko, Matsuyama, Michiya

“…Kisspeptins, encoded by kiss genes, have emerged as critical regulator of reproductive function in vertebrates. Our previous studies demonstrated that the chub…”
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