Abstract: The present invention relates to a pharmaceutical composition or a health functional food composition for improving sleep or preventing or treating sleep disorders comprising beta-lapachone as an active ingredient. Beta-lapachone decreases the sleep latency and increases the total sleeping time, and thus the composition comprising the beta-lapachone can effectively improve sleep and prevent and treat sleep disorders.

Abstract: The present invention relates to a pharmaceutical composition or a health functional food composition for improving sleep or preventing or treating sleep disorders comprising beta-lapachone as an active ingredient. Beta-lapachone decreases the sleep latency and increases the total sleeping time, and thus the composition comprising the beta-lapachone can effectively improve sleep and prevent and treat sleep disorders.

Abstract: The present invention relates to a peptide separated from the fraction of oyster enzyme hydrate displaying the ability of suppressing angiotensin converting enzyme (ACE) and a pharmaceutical composition for the prevention and treatment of cardiovascular disease comprising the said peptide as an active ingredient. Particularly, the peptide separated from the fraction of the oyster enzyme hydrate of the present invention significantly inhibits ACE activity, and thus brings blood pressure regulating effect and antihypertensive effect. Therefore, the fraction of the oyster enzyme hydrate of the invention or the peptide separated from the same can be effectively used as an active ingredient of a pharmaceutical composition for the prevention or treatment of cardiovascular disease.

Abstract: The present invention relates to a peptide separated from the fraction of oyster enzyme hydrolysate displaying the ability of suppressing angiotensin converting enzyme (ACE) and a pharmaceutical composition for the prevention and treatment of cardiovascular disease comprising the said peptide as an active ingredient. Particularly, the peptide separated from the fraction of the oyster enzyme hydrolysate of the present invention significantly inhibits ACE activity, and thus brings blood pressure regulating effect and antihypertensive effect. Therefore, the fraction of the oyster enzyme hydrolysate of the invention or the peptide separated from the same can be effectively used as an active ingredient of a pharmaceutical composition for the prevention or treatment of cardiovascular disease.

Abstract: The present invention relates to a peptide separated from the fraction of oyster enzyme hydrate displaying the ability of suppressing angiotensin converting enzyme (ACE) and a pharmaceutical composition for the prevention and treatment of cardiovascular disease comprising the said peptide as an active ingredient. Particularly, the peptide separated from the fraction of the oyster enzyme hydrate of the present invention significantly inhibits ACE activity, and thus brings blood pressure regulating effect and antihypertensive effect. Therefore, the fraction of the oyster enzyme hydrate of the invention or the peptide separated from the same can be effectively used as an active ingredient of a pharmaceutical composition for the prevention or treatment of cardiovascular disease.

Abstract: A Spirulina maxima extract of the present invention and Allophycocyanin (APC), R-phycoerythrin (R-PE), and C-phycocyanin (C-PC), which are components of the Spirulina maxima extract, show an effect of inhibiting cell death and A2E (pyridinium bis-retinoid), oxidation due to blue light, and therefore can be usefully applied as an active ingredient in a composition for preventing and treating retinal disease.

Abstract: The present invention relates to a peptide separated from the fraction of oyster enzyme hydrate displaying the ability of suppressing angiotensin converting enzyme (ACE) and a pharmaceutical composition for the prevention and treatment of cardiovascular disease comprising the said peptide as an active ingredient. Particularly, the peptide separated from the fraction of the oyster enzyme hydrate of the present invention significantly inhibits ACE activity, and thus brings blood pressure regulating effect and antihypertensive effect. Therefore, the fraction of the oyster enzyme hydrate of the invention or the peptide separated from the same can be effectively used as an active ingredient of a pharmaceutical composition for the prevention or treatment of cardiovascular disease.

Abstract: A method for detecting playing time of a magnetic tape in which a video signal is recorded includes the steps of computing a plurality of residual time data obtained by detecting the instantaneous position of the inserted magnetic tape while performing a high speed winding search mode and high speed rewinding search mode while the tape is loaded on a cassette tape deck of a VCR. Thus, it is very easy to recognize the playing time of the tape including a video signal.