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Article
Effect of nonmagnetic defects on superconducting and transport properties of Ba(Fe1–x Co x As)2 high-T c superconductors
The effect of nonmagnetic defects on superconducting and transport properties of Ba(Fe0.94Co0.06As)2 films is studied for obtaining information on the symmetry type of the order parameter for superconducting pnic...
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Article
Identification of growth hormone receptor in the ovary of tilapia, Oreochromis mossambicus
Growth hormone receptor (GH-R) cDNA was isolated and characterized in the tilapia, Oreochromis mossambicus. GH-R mRNA was expressed in the nucleus and cytoplasm of the young oocytes and in the follicles surroundi...
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Article
The existence of extra-retinal and extra-pineal photoreceptive organ regulating gonadal development of ayu, Plecoglossus altivelis
The photoreceptors regulating photoperiodic gonadal development of ayu, Plecoglossus altivelis, are not known. In this study, we examined whether the gonads of ophthalmectomized and pinealectomized (Ex+Px) ayu re...
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Article
Gonadal development and expression profiles of gonadotropin genes in wild sea conger, Ariosoma meeki
Reproductive physiology of an anguilliform fish, wild sea conger (Ariosoma meeki) was studied. Spawning season of this species is between July and August, and their oocytes showed synchronous development. mRNA le...
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Article
The expression and localization of corticotropin-releasing hormone and urotensin I transcripts in the Japanese eel, Anguilla japonica
Corticotropin-releasing hormone (CRH) is a critical mediator of stress responses and the involvement of CRH in the suppression of reproductive events has been reported in mammals. Here, we have cloned cDNAs en...
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Article
Androgen secretion activity of recombinant follicle-stimulating hormone of Japanese eel, Anguilla japonica in immature and maturing eel testes
The androgen secretion activities of recombinant Japanese eel follicle-stimulating hormone (rjeFSH) were investigated in immature and maturing eel testes. The rjeFSH stimulated testosterone (T) and 11-ketotest...
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Article
GnRH gene products downregulate their neighboring genes encoding protein tyrosine phosphatases
The decapeptide gonadotropin-releasing hormone (GnRH) has multiple functions, including the regulation of gonadotropin secretion, reproductive behavior, and cell proliferation. In this paper, we have found tha...
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Article
Methyltestosterone induces male sensitivity to both primer and releaser pheromones in the urine of ovulated female masu salmon
We investigated the optimum term of 17α-methyltestosterone (MT) -treatment for behavioral test and changes of plasma sex steroids levels in MT-treated immature male masu salmon, Oncorhynchus masou parr. Behaviora...
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Chapter
Properties and Physiological Effects of Plant Cerebroside Species as Functional Lipids
The properties and physiological effects of plant cerebrosides were investigated. The major sphingoid bases of cerebrosides from soybean, maize, and rice bran were trans-4, cis or trans-8-sphingadienine. However,...
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Chapter
Chemical and biological characterization of neuropeptides in the sinus glands of the kuruma prawn, Penaeus japonicus
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Article
Stimulation of insulin-like growth factor-I production by recombinant bovine growth hormone in Mozambique tilapia, Oreochromis mossambicus
We have previously reported growth-promoting effects of recombinant bovine growth hormone (rbGH) in Mozambique tilapia, Oreochromis mossambicus, after 4 weekly injections or a single injection of slow-releasing f...
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Article
The Measurement of Heat Capacity Differences Due to the Change of Water Structure in Aqueous Solutions of Organic Compounds
In order to observe more directly the structural organization of water molecules around a non-polar molecule in an aqueous solution, heat capacity differences between two kinds of solutions (solution I and II)...
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Article
Molecular cloning of the cDNA encoding the β subunit of thyrotropin and regulation of its gene expression by thyroid hormones in the goldfish, Carassius auratus
A cDNA encoding the β subunit of thyrotropin (TSH) was isolated from a goldfish (Carassius auratus) pituitary gland cDNA library. By comparing the sequence with other teleost TSHβs, a signal peptide of 19 amin...
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Article
Effects of steroid hormones on immunoglobulin M (IgM) in rainbow trout, Oncorhynchus mykiss
The immunosuppressive effects of steroid hormones were evaluated as the response against implanted steroid hormones, cortisol (F), testosterone (T), estradiol-17β (E2), and 11- ketotestosterone (11-KT), in juv...
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Article
The Wap65 gene expression of goldfish (Carassius auratus) in association with warm water temperature as well as bacterial lipopolysaccharide (LPS)
The expression of the Wap65 mRNA was compared between hepatopancreas, intestine, ovary, heart, gill, eye, skin, hemocytes, muscle, and brain from 30 °C-acclimated goldfish (Carassius auratus) by reverse transc...
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Article
Development of an emulsion prepared with lipophilized gelatin and its application for hormone administration in the Japanese eel Anguilla japonica
A new water-in-oil-in-water (W/O/W) type emulsion using lipophilized gelatin (LG) and cotton-seed oil was developed for a novel method of hormone administration in fishes. LG was prepared by attaching palmitic...
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Article
The maturation of the salmon GnRH system and its regulation by gonadal steroids in masu salmon
Pituitary gonadotropin (GTH) secreting cells and brain gonadotropin-releasing hormone (GnRH) secreting neurons are known to be subjected to feedback control by gonadal steroid in teleosts. In masu salmon, Onco...
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Article
Reproduction related immunoglobulin changes in rainbow trout
Annual changes in plasma immunoglobulin (IgM) levels were investigated in three strains of rainbow trout Oncorhynchus mykiss which have different spawning periods, i.e., September–October, November–December, a...
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Article
Gonadotropin-releasing hormone and gonadotropin in goldfish and masu salmon
Reproductive activities in vertebrates are regulated by an endocrine system, consisting of the brain-pituitary-gonad axis. In teleosts, gonadotropin-releasing hormone (GnRH) in the brain stimulates gonadotropi...
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Article
Characterization of a lipophilized gelatin prepared by a new method
A new method for the preparation of lipophilized gelatin (LG) was developed. Gelatin dissolved using a microwave oven was easily lipophilized via reaction with fatty acid anhydrides for 3 hr at 50 °C and the s...
