Medicament
A drug and a technology for preparing a drug, applied in the field of pharmaceutical compositions and preparing such drugs, can solve problems such as unfavorable alternative sources, composition handling and processing imposition, etc.
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[0073] Preparation of serum composition
[0074] Approximately 400 cc of blood was drawn from goats under aseptic technique. Typically, animals are bled again at 10-14 days once the blood volume has been replenished. A prebleed protocol is useful to stimulate the production of active components of serum. The serum is then centrifuged to separate the serum, which is then filtered to remove large clots and specific substances. The serum was then treated with supersaturated ammonium sulfate (47% solution at 4°C) to precipitate antibodies and other materials. The resulting solution was centrifuged at 3500 rpm for 45 minutes in a Beckman J6M / E centrifuge, after which the supernatant was removed. Precipitated immunoglobulins and other solid material are resuspended in PBS buffer (phosphate buffered saline) sufficient to redissolve the pellet.
[0075] The solution was then diafiltered against PBS buffer at 4°C with a molecular weight cut off of 10,000 Daltons. After diafiltrati...
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