摘要:
An agent for stimulating growth of animal cells in vitro comprises ginseng or an active ingredient extracted from ginseng Serum-free culture media containing the agent are disclosed. The present serum-free media contain less impure protein than serum-containing media, so that isolation and purification of substances produced by animal cells cultured therein is facilitated. The present serum-free media enhance the growth of lymphocytes in vitro, and can be used for vital cell transplant therapy, particularly for adoptive immunotherapy.
摘要:
The invention relates to an agent for promoting growth in animal cells. The agent contains a serum-free medium and lysozyme. The agent can optionally contain cytokines. The invention further relates to an in vitro method of stimulating the growth of T lymphoblastoid cells and peripheral blood lymphocytes, which comprises the step of culturing the T lymphoblastoid cells or peripheral blood lymphocytes in a serum-free culture medium comprising human lysozyme, as a growth stimulating agent, at a concentration of about 4-100 mg/liter.
摘要:
In a low-pressure testing apparatus for analyzing gas exhausted from cars under a condition in which air pressure is low, an exhaust-gas analyzing device is provided with a dilution tunnel for diluting exhaust gas from cars with air which is under a decompressed condition, the exhaust-gas analyzer is connected to said dilution tunnel at a supply port side thereof and arranged in a low-pressure testing room, and an exhaust intake is open to the air outside of the low-pressure testing room via airtight piping. An influence caused by the fluctuation of pressure within the low-pressure testing room upon the accuracy of anaylsis can be eliminated.