Borasio, G.D., Markus, A., Heumann, R., Chezzi, C., Sampietro, A., Wittinghofer, A., and Silani, V. (1996). Ras p21 protein promotes survival and differentiation of human embryonic neural crest-derived cells. NEUROSCIENCE 73, 1121–1127.

Heumann, R., Narz, F., Algur, Y., Bartsch, D., Huser, M., Klinz, F.J., Wagner, E., Berns, H., Obst, K., and Wahle, P. (1996). Neuronal modulation of p21ras activity in transgenic animals: A master switch? JOURNAL OF BRAIN RESEARCH-JOURNAL FUR HIRNFORSCHUNG 37, 585.

Klinz, F.J., Wolff, P., and Heumann, R. (1996). Nerve growth factor-stimulated mitogen-activated protein kinase activity is not necessary for neurite outgrowth of chick dorsal root ganglion sensory and sympathetic neurons. JOURNAL OF NEUROSCIENCE RESEARCH 46, 720–726.

Arendt, T., Bruckner, M.K., Krell, T., Pagliusi, S., Kruska, I., and Heumann, R. (1995). Degeneration of rat cholinergic basal forebrain neurons and reactive changes in nerve growth-factor expression after chronic neurotoxic injury 2. Reactive expression of the nerve growth-factor gene in astrocytes. Neuroscience 65, 647–659.

Bruckner, M.K., Heumann, R., and Arendt, T. (1995). Gene-expression of neurotrophins is differentially regulated in neurons and astrocytes after chronic brain-damage. Journal of Neurochemistry 65, 90.

Gartner, U., Holzer, M., Heumann, R., and Arendt, T. (1995). Induction of p21(ras) in alzheimer pathology. Neuroreport 6, 1441–1444.

Heumann, R., Klinz, F.J., Berns, H., Erdmann, K., Narz, F., Algur, Y., and Lessmann, V. (1995). Intracellular mechanisms of neurotrophin signaling. Journal of Neurochemistry 65, 134.

Klinz, F.J., and Heumann, R. (1995). Time-resolved signaling pathways of nerve growth-factor diverge downstream of the p140trk receptor activation between chick sympathetic and dorsal-root ganglion sensory neurons. Journal of Neurochemistry 65, 1046–1053.

Zhong, J., and Heumann, R. (1995). Lesion-induced interleukin-6 mrna expression in rat sciatic nerve. In interleukin-6 type cytokines, A. Mackiewicz, A. Koj and P.B. Sehgal, Eds. (New York Acad Sciences: 2 east 63rd st, New York, NY 10021 USA), pp. 488–490.

Bruckner, M.K., Krell, T., Heumann, R., and Arendt, T. (1994). Expression of ngf and bdnf messenger-rnas in astrocytes under normal in-vivo conditions and after chronic injury. Journal of Neurochemistry 63, 67.

Lessmann, V., Gottmann, K., and Heumann, R. (1994). Bdnf and nt-4/5 enhance glutamatergic synaptic transmission in cultured hippocampal-neurons. Neuroreport 6, 21–25.

Vinh, N.Q., Erdmann, K.S., and Heumann, R. (1994). Cloning and sequence-analysis of a cdna-encoding a novel truncated form of the chicken trkb receptor. Gene 149, 383–384.

Borasio, G.D., Markus, A., Wittinghofer, A., Barde, Y.A., and Heumann, R. (1993). Involvement of ras p21 in neurotrophin-induced response of sensory, but not sympathetic neurons. Journal of Cell Biology 121, 665–672.

Klinz, F.J., and Heumann, R. (1993). Ngf-mediated signal-transduction and tyrosine phosphorylation in neuronal cells. Journal of Neurochemistry 61, 164.

Markus, A., Borasio, G.D., Nehring, R.B., Klinz, F.J., Barde, Y.A., and Heumann, R. (1993). P21 ras mediates neurotrophic factor-induced survival in sensory, but not in sympathetic chick embryonic neurons. Journal of cellular biochemistry, 261.

Schornig, M., Heumann, R., and Rohrer, H. (1993). Synthesis of nerve growth-factor messenger-rna in cultures of developing mouse whisker pad, a peripheral target tissue of sensory trigeminal neurons. Journal of Cell Biology 120, 1471–1479.

Meyer, M., Bandtlow, C., Lindholm, D., Heumann, R., and Thoenen, H. (1992). Regulation of the synthesis of nerve growth-factor (ngf) by interleukin-1 (il-1) - facts and questions. In interleukin-1 in the brain, N. Rothwell and R. Dantzer, Eds. (Pergamon Press ltd), pp. 173–186.

Brown, M.C., Perry, V.H., Lunn, E.R., Gordon, S., and Heumann, R. (1991). Macrophage dependence of peripheral sensory nerve regeneration - possible involvement of nerve growth-factor. Neuron 6, 359–370.

Heumann, R., Hengerer, B., Brown, M., and Perry, H. (1991). Molecular mechanisms leading to lesion-induced increases in nerve growth-factor synthesis. In glial-neuronal interaction, N.J. Abbott, Ed. (New York Acad Sciences), pp. 581–582.