Medical and biological research

Holtorf A.-P., Petri T, Hermans H. (1994) Beneficial Effects of Animal Cell Technology. ACTIP Publication, Drukkerij Humanitas, Rotterdam.

Schläpfer BS, Scheibler M, Holtorf A-P, Nguyen HV. Pluschke G (1995) Development of Optimised Transfectoma Cell Lines for Production of Chimeric Antibodies in Hollow Fiber Cell Culture Systems. Biotechnology and Bioengineering, 45, 310-319.

Holtorf AP (1993) Animal Cell Technology Industrial Platform: Für die Zukunft tierischer Zellkulturen in Industrie und Forschung Europas. Chimia, 47, 495-96.

McArdle CA, Holtorf AP (1989) Oxytocin and progesterone release from bovine corpus luteal cells in culture: Effects of insulin-like growth factor I, insulin, and prostaglandins. Endocrinology, 124, 1278-1286.

Hofmann HD, Unsicker K, Holtorf AP (1987) Protein phosphorylation in PC12 pheochromocytoma cells in response to two neurotrophic factors. J.Neurochem.(Suppl.), 48, p.S56.

Holtorf AP, Unsicker K, Hofmann HD (1987) NGF changes membrane bound kinase activities in PC12 pheochriomocytoma cells. J.Neurochemistry, 48suppl., p.S042.

Holtorf AP, Unsicker K, Hofmann HD (1988) Nerve growth factor (NGF)-dependent kinase activities in PC12 pheochromocytoma cells; European Journal of Endocrinology 117, no. 4 (4): S51-S51.

Champney TH, Holtorf AP, Craft CM, Reiter RJ (1986) Hormonal modulation of pineal melatonin synthesis in rats and syrian hamsters: Effect of streptozocin-induced diabetes and insulin injections, Comp.Biochem.Physiol., 83a, 391-395.

Holtorf AP, Heldmaier G, Thiele G, Steinlechner S (1985) Diurnal changes in sensitivity to melatonin in intact and pinealectomized djungarian hamsters: Effects on thermogenesis, cold tolerance, and gonads; J.Pineal Res., 2, 393-403.

Reiter RJ, Holtorf AP, Champney TH, Vaughan MK (1984) Relative efficacy of melatonin and 5- methoxytryptamine in terms of their antigonadotrophic and counteranti-gonadotrophic actions in male syrian hamsters; J.Pineal Res. 1 (1984) 91-98.

Champney TH, Holtorf A-P, Steger RW, Reiter RJ (1984) Concurrent determination of enzymatic activity and substrate concentrations in the melatonin synthetic pathway within the same pineal gland; J.Neuroscience Res., 11, 59-66.

Thiele G, Holtorf A, Steinlechner S, Reiter RJ (1983) The influence of different light irradiances on pineal N-acetyltransferase activity and melatonin levels in the cotton rat, Sigmodon hispidus, Life Sciences, 33, 1543-47.