Abstract: The present invention relates to a method, whereby microbial cells are broken up and cellular components are separated and an apparatus suitable for carrying out the method. Preferably, the cells contain extra-chromosomal nucleic acids that are released and are further suitable for additional purification as required for any pharmaceutical or technical use.

Abstract: A method for recognizing and determining GnRH receptors on abnormal cells of a tumor originating in the brain and/or nervous system and/or the meninges and/or on Kaposi sarcoma. Also, preparing diagnostic kits for tumors originating in the brain and/or nervous system and/or the meninges and/or for Kaposi sarcoma. Further, a method for decreasing cellular replication of GnRH-positive glioma, oat-cell carcinoma, malignant melanoma, or Kaposi sarcoma comprising administering to a cell or to a subject a replication decreasing amount of a GnRH agonist.