1. Anand-Srivastava MB, Trachte GJ (1993) Atrial natriuretic factor receptors and signal transduction mechanisms. Pharmacol Rev 45: 455–497
2. Beavo JA, Conti M, Heaslip RJ (1994) Multiple cyclic nucleotide phosphodiesterases. Mol Pharmacol 46: 399–405
3. Behne S, Becker HJ, Liefhold J, Kaiser R, Lemmer B (1990) On the chronopharmacokinetics, effects on cardiovascular functions, and plasma cAMP of oral nifedipine in healthy subjects. In: Lemmer B, Huller H (eds) Clinical chronopharmacology, vol 6. Zuckschwerdt, Munich, pp 59–63
4. Berridge MJ, Irvine RF (1984) Inositol-trisphosphate, a novel second messenger in cellular signal transduction. Nature 312: 315–321
5. Brodde OE (1994) Beta-adrenoceptors in cardiac disease. Pharmacol Ther 60:405–430 Choma PP, Puri SK, Volicer L (1979) Circadian rhythm of cyclic nucleotide and GABA levels in the rat brain. Pharmacology 19: 307–314