• Publications
  • Influence
EFFECT OF TEMPERATURE ON INTERACTION BETWEEN EGGS AND SPERMATOZOA OF SEA URCHIN
TLDR
The results strongly suggest that temperature exerts a direct influence on fertilization in Anthocidaris by acting on the acrosome reaction. Expand
The actions of insulin-like growth factors I and II on cultured Sertoli cells.
TLDR
It is concluded that Sertoli cells possess receptors for IGF-I and that the responses observed to insulin may result from binding of these hormones to receptors forIGF-I. Expand
Metabolism of lipid and carbohydrate in sea urchin spermatozoa
TLDR
When the dry sperm of the sea urchin, Hemicentrotus pulcherrimus, were diluted 100 times in artificial sea water at 0°C and at 20°C, they became motile and the levels of ATP and creatine phosphate decreased rapidly, suggesting that phospholipid was hardly metabolized the lower temperature. Expand
The influence of insulin and insulin-like growth factor-I on hexose transport by Sertoli cells.
TLDR
It was observed that whereas insulin stimulates transport of methylglucose at micromolar concentrations, insulin-like growth factor I (IGF I) exerts the same effect at nanomolar (physiological) concentrations. Expand
A relaxin-like peptide purified from radial nerves induces oocyte maturation and ovulation in the starfish, Asterina pectinifera
TLDR
Together, the structure, sequence, and mode of signal transduction strongly suggest that GSS is closely related to the vertebrate relaxin. Expand
Metabolism of round spermatids from rats: lactate as the preferred substrate.
TLDR
It is suggested that Sertoli cells may provide the relatively large amounts of lactate required by round spermatids and energy production is most efficient when this substance isPresent in high concentrations and pyruvate is present in low concentrations. Expand
Stimulation by follicle-stimulating hormone of synthesis of lactate by Sertoli cells from rat testis.
TLDR
It became apparent that Sertoli cells may provide the major source of metabolic substrate for spermatids in the form of lactate, and the effect of FSH may be important in the regulation of sPermatogenesis. Expand
Preliminary study on the receptor of gonad-stimulating substance (GSS) as a gonadotropin of starfish.
TLDR
Artificial GSS was synthesized and its interaction with the receptors was examined further, suggesting that GSS receptors are distributed to follicle cells in female and interstitial cells in male, respectively. Expand
Relaxin-like gonad-stimulating substance in an echinoderm, the starfish: a novel relaxin system in reproduction of invertebrates.
  • M. Mita
  • Biology, Medicine
  • General and comparative endocrinology
  • 15 January 2013
Gonad-stimulating substance (GSS) in starfish is the only known invertebrate peptide hormone responsible for final gamete maturation, rendering it functionally analogous to gonadotropins inExpand
Starfish gonadotropic hormone: Relaxin-like gonad-stimulating peptides.
  • M. Mita
  • Biology, Medicine
  • General and comparative endocrinology
  • 1 May 2016
TLDR
Relaxin-like gonad-stimulating peptide (RGP) of starfish Patiria (= Asterina) pectinifera is the first identified invertebrate gonadotropin to trigger final gamete maturation and it is suggested that the AamRGP and AjaRGP partly act species specificity. Expand
...
1
2
3
4
5
...