1. Editorial

   • András Falus

   EditorialNotes 30 December 1999 Pages: 319 - 319

2. Lectori Salutem…

   • György Csaba

   Announcement 30 December 1999 Pages: 321 - 324

3. Study of Histamine Effects on Phagocytosis and Enzyme Secretion of Tetrahymena Pyriformis

   • Zsuzsa Darvas
   • B. Madarász
   • Valéria László

   OriginalPaper 30 December 1999 Pages: 325 - 334

4. Investigation on The Formation of The Hormone Reception Mechanism

   • O. Dobozy
   • Cs. Karabélyos
   • Á. Kiss

   OriginalPaper 30 December 1999 Pages: 335 - 341

5. Non-Conventional Locations of Hormone Receptors (Binding Sites). A Review

   • A. K. Fülöp
   • Hargita Hegyesi

   OriginalPaper 30 December 1999 Pages: 343 - 354

6. The Environmental Pollutant Aromatic Hydrocarbon, Benzpyrene has Deleterious Effect on Hormone Receptor Development

   • Ágnes Inczefi-Gonda

   OriginalPaper 30 December 1999 Pages: 355 - 361

7. The Effect of β-Chloro D-Alanine and L-Cycloserine on The Serine, Phosphorus and Palmitic Acid Uptake and Metabolism of Tetrahymena Lipids

   • P. Kovács

   OriginalPaper 30 December 1999 Pages: 363 - 373

8. Chemotaxis: the Proper Physiological Response to Evaluate Phylogeny of Signal Molecules

   • L. Kőhidai

   OriginalPaper 30 December 1999 Pages: 375 - 394

9. Receptor Tyrosine Kinase, an Autapomorphic Character of Metazoa: Identification in Marine Sponges

   • W. E. G. Müller
   • A. Skorokhod
   • Isabel M. Müller

   OriginalPaper 30 December 1999 Pages: 395 - 411

10. Stress-Responsive Gene Expression in Tetrahymena

    • S. Nakashima
    • Y. Nozawa

    OriginalPaper 30 December 1999 Pages: 413 - 424

11. Imprinting: Perinatal Exposures Cause the Development of Diseases During the Adult Age

    • A. N. Tchernitchin
    • Nina N. Tchernitchin
    • J. Soto

    OriginalPaper 30 December 1999 Pages: 425 - 440

12. Origins of Signalling and Memory: Matters of Life Versus Death

    • D. N. Wheatley
    • S. T. Christensen

    OriginalPaper 30 December 1999 Pages: 441 - 461