Other

Kao Corporation

Tsukasa Matsumoto

Kazuya Otsuji

Kikuhiko Okamoto

Hakaru Inaoka

Yasuki Honda

Morihisa Tanaka

Jong-Chol Cyong

Koji Ijima

A method for obtaining leucocyte components from human blood including (A) a first step for fracturing the cell membrane of leucocytes of human blood by using a freezing and defrosting method, a supersonic application, laser irradiation, an osmotic pressure changing method, a vacuum chamber, or the like and (B) a second step for separating and collecting the leucocyte-components containing the leucocytes with fractured cell membranes from the blood liquid resulted from the first step by way of a centrifugal precipitation technique or an electrophoresis technique. After being separated and collected, the leucocyte components are, respectively, subjected to various therapeutic tests using blood samples collected from patients suffering from various diseases to determine the therapeutic effects.

Method for obtaining components from cultured leucocyte

A method for fractionating red blood cells of human blood into three fractions comprises following steps; (a) human blood sample is mixed with dextran aqueous solution and maintained stationarily for 60 to 75 min to fractionate this blood sample into three layers; (b) the upper, intermediate, and lower layer samples are individually separated and collected; and (c) the upper layer sample is treated with hypotonic solution for a short period and then added with hypertonic solution. Further the invention provides antibacterial or bacterial proliferation inhibitory material produced by the method. This method can easily fractionate three different blood fractions including red blood cells as a main component and having different functions. These three different fractions can be applied to several clinical tests such as antibacterial test and the like.

Method for fractionating red blood cells and antibacterial materials for bacterial proliferation inhibitors produced thereby

A composition for curing autoimmune diseases is disclosed. The composition comprises as an effective component an acidic heteropolysaccharide which is secreted by a callus induced from a plant belonging to the genus Polianthes L. The acidic heteropolysaccharide can be prepared as a uniform product by the application of plant tissue culture methods and exhibits superior capability of removing immunocomplexes with the least side effects.

Method for removing immunocomplexes from blood

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Tokyo, Japan

Tsukasa Matsumoto