*Research aided by grant (G-199) and summer Travel Fellowship (1957) from the National Council to Combat Blindness, Inc., and in part from the United States Public Health Service, Institute of Neurological Diseases and Blindness (B-397). Received for publ~catlon, July 7, 1958. chemical study of photoreceptors in our laboratory (1-5). The invertebrate photoreceptors have recently been reviewed b...

OBJECTIVES This paper aims to investigate synergistic inhibition of polysaccharide from Sepia esculenta ink (SIP), a newly isolated marine polysaccharide in our laboratory, on breast cancer MDA-MB-231 cells exposed to cisplatin. MATERIALS AND METHODS Cell viability of MDA-MB-231 cells was determined by CCK 8 assay. Median-effect concentration was analyzed using Chou-Talalay method that was al...

Myosin heavy chain (MyHC) genes from the mantle muscles of three cephalopod species, namely, golden cuttlefish Sepia esculenta, Japanese common squid Todarodes pacificus, and spear squid Loligo bleekeri were subjected to synthesis of first strand cDNA by reverse transcription-PCR. As a result of sequencing of the obtained cDNA fragments, the MyHCs from S. esculenta and L. bleekeri were found to...

Light microscopical observation of serial sections of four kinds of decapoda which living in seas around Japan (Ommastrephes sloanei pacificus, Sepia esculenta, Doryteuthis bleekeri, Sepioteuthis lessoniana) was carried out. These specimens were fixed alive with 10% formaldehyde solution diluted with sea water and then dehydrated without decalcification with ethylalcohol diluted with sea water....