Azwell Inc.

Sagami Chemical Research

Nippon Shoji Kaish Ltd.

Naoto Matsuyama

Koji Mizuno

Kazunaga Yazawa

Yasuji Soda

Yasuharu Ijuin

Masaharu Takayama

Kazuo Watanabe

Mina Fukuhara

Tetsuya Kosaka

Mayumi Shikano

The present invention provides a method and a kit for detecting or quantitatively determining homocysteine rapidly and simply and with high sensitivity by oxidizing the residual homocysteine cosubstrate, the produced homocysteine-converting enzyme product or an enzyme reaction product thereof in the presence of an SH reagent to produce hydrogen peroxide and determining the produced hydrogen peroxide by color development using an oxidative color-developing agent. By using the method and kit of the present invention, homocysteine in biological samples, in particular, in body fluids such as blood and urine can be detected and quantitatively determined rapidly and simply and with high sensitivity.

Method of measuring total homocysteine

An aniline derivative of the formula (1) ##STR1## wherein R.sup.1 is an eicosapentaenoyl or docosahexaenoyl; R.sup.2 and R.sup.3 are each independently an alkyl or alkoxy having 1 to 6 carbon atoms, or a halogen atom; R.sup.4 is a hydrogen atom, an alkyl or alkoxy having 1 to 6 carbon atoms, or a halogen atom; and A is a single bond, --C(.dbd.O)NH--(CH.sub.2).sub.n --NH-- wherein n is 2 or 3, or a bivalent group of the following formula ##STR2## wherein m and p are each independently 0 or 1. The aniline derivative of the present invention has high inhibitory activity against and high selectivity for ACAT derived from macrophage and is useful as an agent for the prophylaxis and treatment of arteriosclerosis.

Aniline derivative having polyunsaturated fatty acid residue and use

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Takatsuki, Japan

Naoto Matsuyama