Abstract: 1,2,3,4-Tetrahydro-1,1,4,4-tetramethyl-6-(.alpha.-methylstyryl)naphthalene possesses antihyperplastic, antimetaplastic, antineoplastic tumor-preventative and tumor-therapeutic properties and can accordingly be used in the treatment of precancerous or premalignant lesions as well as in the treatment of malignant tumors of epithelial and mesenchymal nature.

Abstract: A novel process for the manufacture of the optically active lactone of the formula ##STR1## is described.

Abstract: Novel compounds of the formula ##STR1## wherein B represents a methylene, ethylene or vinylene group, R.sup.1 represents a hydrogen atom or an alkyl, aralkyl, amino-alkyl, mono-alkylamino-alkyl, dialkylaminoalkyl, acylamino-alkyl, phthalimido-alkyl, alkoxycarbonylamino-alkyl, aryloxycarbonylamino-alkyl, aralkoxycarbonylamino-alkyl, alkylaminocarbonylamino-alkyl, arylaminocarbonylamino-alkyl, aralkylaminocarbonylamino-alkyl, alkylsulphonylamino-alkyl or arylsulphonylamino-alkyl group, R.sup.2 represents a carboxyl, alkoxycarbonyl or aralkoxycarbonyl group or a group of the formula ##STR2## R.sup.3 represents a carboxyl, alkoxycarbonyl or aralkoxycarbonyl group, R.sup.4 and R.sup.5 each represent a hydrogen atom or R.sup.4 and R.sup.5 together represent an oxo group, R.sup.6 and R.sup.7 each represent a hydrogen atom or an alkyl or aralkyl group or R.sup.6 and R.sup.

Abstract: This disclosure relates to assay of a glycoprotein component of human breast gross cystic disease fluid which has been designated GCDFP-15. This material is a useful marker in monitoring the efficacy of therapy in women with metastatic breast carcinoma and also in determining the maturity of the fetus in pregnant women. The assay for GCDFP-15 can also be used in conjunction with other assays for breast carcinoma such as an assay for carcinoembryonic antigen (CEA) whereby the utilization of both tests is more effective in monitoring for recurrence of disease than using either assay alone.