Osaka University

Nippon Zoki Pharmaceutical Co., Ltd.

Tsuyoshi Murase

Hideki Yoshikawa

Hiroyuki Tanaka

Mitsuru Naiki

Hideki Mochizuki

Tsutomu Sasaki

Kousuke Baba

Toru Iwahashi

Hiroki Fujisawa

Tomonori Matsumoto

An object is to provide a drug which is useful in treating a nervous system disease. A drug containing vitamin Bas an active ingredient according to the present invention has an M2 macrophage/microglia induction promoting effect, an M1 macrophage/microglia induction inhibiting effect, a nerve regeneration promoting effect, and the like and is very useful as a therapeutic agent for a nervous system disease, and particularly useful as a therapeutic agent for a central nervous system disease such as cerebral infarction, dementia, or spinal cord injury.

Therapeutic agent for nervous system disease

A method of treating a central nervous system disease, the method including administering an agent including a therapeutically effective amount of vitamin Bto a patient with a central nervous system disease to treat the central nervous system disease. This disclosure also relates to a method of promoting M2 macrophage/microglia induction, inhibiting M1 macrophage/microglia induction, and/or reducing the ratio of M1 macrophage/microglia to M2 macrophage/microglia in a patient in need thereof, the method including administering an agent including a therapeutically effective amount of vitamin Bto the patient to promote M2 macrophage/microglia induction, inhibit M1 macrophage/microglia induction, and/or reduce the ratio of M1 macrophage/microglia to M2 macrophage/microglia. This disclosure also relates to a pharmaceutical product including vitamin B.

A Schwann cell differentiation promoting agent, a peripheral nerve regeneration promoting agent, or the like contain an extract from inflamed tissues inoculated with vaccinia virus. The extract from inflamed tissues inoculated with vaccinia virus promotes differentiation of Schwann cells and regeneration of a peripheral nerve. Therefore, a preparation containing the extract from inflamed tissues inoculated with vaccinia virus is useful as a Schwann cell differentiation promoting agent, a peripheral nerve regeneration promoting agent, or the like.

Schwann cell differentiation promoting agent and a peripheral nerve regeneration promoting agent

The object of the present invention is to provide a test method using a novel administration method of an extract from inflamed tissues inoculated with vaccinia virus or a preparation containing the extract. It has been demonstrated that by sustainedly administering an extract from inflamed tissues inoculated with vaccinia virus or a preparation containing the extract by using a continuous administration device according to the present invention, a comparable effect is exerted at a very low dose compared with conventional administration methods such as oral administration. Therefore, the present invention can provide a test method using animals requiring less burden on a researcher, a treatment of patient at a low dose, and the like.

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Suita, Japan

Tsuyoshi Murase