Steffi Niemann

Learn More
P19 embryonal carcinoma cells differentiate into neuroectodermal derivates upon aggregation and treatment with retinoic acid (RA). Such RA-induced P19 cells, concomitant with neuronal differentiation, produce the neuropeptide head activator (HA) and release HA into the culture medium. The amount of HA produced by such differentiating P19 cells is more than(More)
The embryonal carcinoma cell line P19 responds to treatment with retinoid acid by differentiation into neuronal cell types [2]. Using radioactively labeled cDNA derived from differentiating P19 cells we screened an adult mouse brain cDNA library and isolated a gene named shyc for selective hybridizing clone. The encoded protein did not reveal homology to(More)
Flavanol depleted whole fresh green tea leaf powder, as reported in the literature, was used as matrix for a systematic study of the endogenous oxidative enzymatic conversion of selected flavanol combinations to theaflavins and thearubigins. The activity of the two crucial enzymes polyphenol oxidase (PPO) and peroxidase (POD) was controlled individually(More)
Skeletons of (C3H X 101)F1 mice have been examined in earlier studies of the induction of dominant skeletal mutations. The present experiment was done to determine whether the same criteria used to identify mutations in (C3H X 101)F1 mice could be applied to the offspring collected in specific-locus experiments. Offspring were obtained from an experiment of(More)
  • 1