Masatoshi Mita
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Explore the profile of Masatoshi Mita including associated specialties, affiliations and a list of published articles.
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Citations
218
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Recent Articles
1.
Feng Y, Escudero Castelan N, Hossain M, Wu H, Katayama H, Smith S, et al.
BMC Biol
. 2025 Feb;
23(1):59.
PMID: 40001176
Background: Relaxins are a family of peptides that regulate reproductive physiology in vertebrates. Evidence that this is an evolutionarily ancient role of relaxins has been provided by the discovery of...
2.
Mita M, Feng Y, Pinon-Gonzalez V, Elphick M, Katayama H
Gen Comp Endocrinol
. 2023 Aug;
343:114369.
PMID: 37611673
In starfish, a relaxin-like gonad-stimulating peptide (RGP) acts as a gonadotropin that triggers gamete maturation and spawning. In common with other relaxin/insulin superfamily peptides, RGP consists of an A- and...
3.
Mita M, Yasumasu I
Dev Growth Differ
. 2023 Jun;
26(5):489-495.
PMID: 37282208
When sperm of the sea urchin, Hemicentrotus pulcherrimus, are diluted into K -free seawater, the pH of the suspension gradually decreases, whereas a rapid decline in pH is observed following...
4.
Mita M
Dev Growth Differ
. 2023 Jun;
27(5):563-572.
PMID: 37282043
Spawning of the gametes in the starfish, Asterina pectinifera, induced by a gonad-stimulating substance (GSS) was inhibited by cysteine. This inhibitory effect of cysteine was due to the reduction of...
5.
Mita M
Dev Growth Differ
. 2023 Jun;
28(1):67-74.
PMID: 37281900
Production of 1-methyladenine (1-MeAde) in isolated starfish follicle cells incubated with 1-methyladenosine was elevated by disulfide-reducing agents, such as dithiothreitol, cysteine, and homocysteine. More than 0.05 mM cysteine and homocysteine...
6.
Mita M, Yasumasu I, Nagahama Y, Saneyoshi M
Dev Growth Differ
. 2023 Jun;
38(4):413-418.
PMID: 37281717
The resumption of meiosis in starfish oocytes is induced by 1-methyladenine (1-MeA), which is produced by ovarian foilicle cells under the influence of a gonad-stimulating substance (GSS). It has been...
7.
Mita M, Yasumasu I
Dev Growth Differ
. 2023 Jun;
22(3):257-263.
PMID: 37281609
During the early development of the sea urchin, Anthocidaris crassispina, the activity of lipase was maintained at the same level as in unfertilized eggs until the mesenchymal blastula stage (20...
8.
Mita M
Dev Growth Differ
. 2023 Jun;
33(5):509-515.
PMID: 37281473
Follicle cells from the ovaries of starfish Asterina pectinifera collected in the breeding season and then kept in an aquarium for three months did not produce 1-methyladenine (1-MeAde) in response...
9.
Mita M, Ueta N, Nagahama Y
Dev Growth Differ
. 2023 Jun;
29(6):607-616.
PMID: 37281317
The effect of various disulfide-reducing agents including cysteine and its alkylesters on the induction of germinal vesicle breakdown (GVBD) in starfish (Asterina pectinifera) oocytes was investigated in vitro. Although cysteine...
10.
Fujiwara A, Mita M, Hino A, Hamasaki T, Naitoh Y, Yasumasu I
Dev Growth Differ
. 2023 Jun;
25(1):39-47.
PMID: 37281300
Spermatozoa of the sea urchin, Hemicentrotus pulcherrimus, showed marked decrease in respiration, and arrested movement after interaction with the fixed eggs. Immotile spermatozoa that had reacted with fixed eggs contained...