GNAHN, H., HEFTI, F., Heumann, R., SCHWAB, M.E., and THOENEN, H. (1983). NGF-MEDIATED INCREASE OF CHOLINE-ACETYLTRANSFERASE (CHAT) IN THE NEONATAL RAT FOREBRAIN - EVIDENCE FOR A PHYSIOLOGICAL-ROLE OF NGF IN THE BRAIN. DEVELOPMENTAL BRAIN RESEARCH 9, 45–52.
HARPER, G.P., BARDE, Y.A., EDGAR, D., GANTEN, D., HEFTI, F., Heumann, R., NAUJOKS, K.W., Rohrer, H., TURNER, J.E., and THOENEN, H. (1983). BIOLOGICAL AND IMMUNOLOGICAL PROPERTIES OF THE NERVE GROWTH-FACTOR FROM BOVINE SEMINAL PLASMA - COMPARISON WITH THE PROPERTIES OF MOUSE NERVE GROWTH-FACTOR. NEUROSCIENCE 8, 375–387.
HEFTI, F., GNAHN, H., DRAVID, A., Heumann, R., SCHWAB, M., and THOENEN, H. (1983). PHYSIOLOGICAL-ROLE OF NERVE GROWTH-FACTOR (NGF) IN DEVELOPMENT AND REGENERATION OF CENTRAL CHOLINERGIC NEURONS. EXPERIENTIA 39, 665.
Heumann, R., KACHEL, V., and THOENEN, H. (1983). RELATIONSHIP BETWEEN NGF-MEDIATED VOLUME INCREASE AND PRIMING EFFECT IN FAST AND SLOW REACTING CLONES OF PC12-PHEOCHROMOCYTOMA CELLS - ROLE OF CAMP. EXPERIMENTAL CELL RESEARCH 145, 179–190.
Heumann, R., REISER, G., VANCALKER, D., and HAMPRECHT, B. (1982). POLYPLOID RAT GLIOMA-CELLS - PRODUCTION, OSCILLATIONS OF MEMBRANE-POTENTIAL AND RESPONSE TO NEUROHORMONES. EXPERIMENTAL CELL RESEARCH 139, 117–126.
Heumann, R., SCHWAB, M., and THOENEN, H. (1982). LACK OF EFFECT OF NERVE GROWTH-FACTOR (NGF) AND NGF-ANTIBODIES INJECTED INTO THE CYTOPLASM OF TARGET-CELLS. EUROPEAN JOURNAL OF CELL BIOLOGY 27, 117.
Heumann, R., SCHWAB, M., and THOENEN, H. (1981). A 2ND MESSENGER REQUIRED FOR NERVE GROWTH-FACTOR BIOLOGICAL-ACTIVITY. NATURE 292, 838–840.
Heumann, R., VILLEGAS, J., and HERZFELD, D.W. (1981). ACETYLCHOLINE SYNTHESIS IN THE SCHWANN-CELL AND AXON IN THE GIANT NERVE-FIBER OF THE SQUID. JOURNAL OF NEUROCHEMISTRY 36, 765–768.
SCHWAB, M.E., Heumann, R., and THOENEN, H. (1981). COMMUNICATION BETWEEN TARGET ORGANS AND NERVE-CELLS - RETROGRADE AXONAL-TRANSPORT AND SITE OF ACTION OF NERVE GROWTH-FACTOR. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 46, 125–134.
Heumann, R., OCALAN, M., and HAMPRECHT, B. (1980). REGULATION OF CHOLINERGIC AND ADRENERGIC PROPERTIES IN A CLONAL HYBRID-HYBRID CELL-LINE. HOPPE-SEYLERS ZEITSCHRIFT FUR PHYSIOLOGISCHE CHEMIE 361, 1294.
Heumann, R., OCALAN, M., and HAMPRECHT, B. (1979). FACTORS FROM GLIAL-CELLS REGULATE CHOLINE-ACETYLTRANSFERASE AND TYROSINE-HYDROXYLASE ACTIVITIES IN A HYBRID-HYBRID CELL-LINE. FEBS LETTERS 107, 37–41.
Heumann, R., OCALAN, M., KACHEL, V., and HAMPRECHT, B. (1979). CLONAL HYBRID CELL-LINES EXPRESSING CHOLINERGIC AND ADRENERGIC PROPERTIES. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 76, 4674–4677.
Heumann, R., and VILLEGAS, J. (1979). ACETYLCHOLINE SYNTHESIS IN THE GIANT NERVE-FIBER OF THE SQUID. BIOPHYSICAL JOURNAL 25, A304.
Heumann, R., and VILLEGAS, J. (1978). COLINACETIL TRANSFERASE IN THE SQUID NERVE-FIBER. ACTA CIENTIFICA VENEZOLANA 29, 90.
Heumann, R., OCALAN, M., KACHEL, V., and HAMPRECHT, B. (1977). PRODUCTION OF CHOLINERGIC-ADRENERGIC CELL LINES BY CELL-FUSION. HOPPE-SEYLERS ZEITSCHRIFT FUR PHYSIOLOGISCHE CHEMIE 358, 1218.
Heumann, R., STAVROU, D., REISER, G., OCALAN, M., and HAMPRECHT, B. (1977). TUMORIGENICITY OF NEUROBLASTOMA BY GLIOMA HYBRID-CELLS IN NUDE MICE AND REINTRODUCTION OF TRANSPLANTED CELLS INTO CULTURE. EUROPEAN JOURNAL OF CANCER 13, 1417–1420.
Heumann, R., VALET, G., MAISON, D., KEMPER, J., REISER, G., and HAMPRECHT, B. (1977). INFLUENCE OF TIME IN CULTURE ON CELLULAR AND NEURONAL PROPERTIES OF NEUROBLASTOMA X GLIOMA HYBRID-CELLS - WITH AN APPENDIX - MATHEMATICAL-DESCRIPTION OF KINETICS OF LOSS IN CELL-VOLUME. JOURNAL OF CELL SCIENCE 27, 141–155.
REISER, G., Heumann, R., KEMPER, W., LAUTENSCHLAGER, E., and HAMPRECHT, B. (1977). INFLUENCE OF CATIONS ON ELECTRICAL-ACTIVITY OF NEUROBLASTOMA X GLIOMA HYBRID-CELLS. BRAIN RESEARCH 130, 495–504.
HERRLINGER, H., ANZIL, A.P., STAVROU, D., Heumann, R., HAMPRECHT, B., and BLINZINGER, K. (1975). INTRACISTERNAL-A-PARTICLES AND C-PARTICLES IN MOUSE NEURONS - THIN-SECTION STUDY OF NORMAL TRIGEMINAL GANGLION AND C1300 NEUROBLASTOMA. JOURNAL OF THE NATIONAL CANCER INSTITUTE 55, 1473–1475.