Part 1 Honorary lectures: gender differences on the actions of vasopressin, L. Share et al; some new aspects in aetiologies and diagnosis of neurogenic diabetes insipidus, H. Imura. Part 2 Award lecture: novel potent and selective antagonists and radioiodinated ligands for oxytocin and vasopressin receptors, M. Manning et al. Part 3 Plenary lecture: evolution of neurohypophyseal control of water homeostasis - integrative biology of molecular, cellular and organismal aspects, R. Acher. Part 4 Vasopressin and oxytocin gene in central nervous system: visualization of gene expression of vasopressin and oxytocin in brains and peripheral organs, M. Kawata et al; expression of rat transgenes in rats, S.J. Waller et al. Part 5 Transcriptional event in neurohypophyseal gene expression: osmolality-dependent steroid feed-back regulation of vasopressin gene expression, L.T. Knapp et al; stimulation-transcription coupling in the vasopressin system, A.G. Robinson. Part 6 Cellular aspects of neurohypophyseal hormone release: mechanosensitive ion channels and osmoreception in magnocellular neurosecretory neurons, C.W. Bourque et al; release of vasopressin and oxytocin within the brain and into blood - microdialysis and antisense targeting, R. Landgraf et al. Part 7 Regulatory factors of neurohypophyseal hormone release: changing interactions of opioids with oxytocin neurons in pregnancy, J.A. Russel et al. Part 8 Neurohypophyseal control of adaptation: cellular and molecular aspects of thymic T-cell education to neurohypophyseal principles, V. Geenen et al; coordination of the central actions of oxytocin in the peripartum period, C.D. Ingram et al. Part 9 Molecular biology of vasopressin and oxytocin receptors: oxytocin receptors on hypothalamic oxytocin neurons and astrocytes, D. DiScala-Guenet et al; the antagonist binding site localization of vasopressin and oxytocin receptors, B. Louillac et al. Part 10 Receptor control of neurohypophyseal hormone action: vasopressin receptor gene expression in brain and peripheral tissues, S.J. Lolait et al; structure and expression of the rat vasopressin V2 receptor gene, J.M. Elalouf et al. Part 11 Water channel in the renal action of vasopressin: water channel structure and function, A.S. Verkman et al. Part 12 Urinary concentration - urea transport and chloride channel: role of the vasopressin-stimulated urea transport of inner medullary collecting duct in the countercurrentmultiplication system, M.Imai et al; vasopressin stimulates CI-secretion by the inner medullary collecting duct, D.E. McCoy et al. Part 13 Vascular action of vasopressin: structure of the human V1a vasopressin receptor gene, M. Thibonnier et al. Part 14 Vasopressin disorders and receptor antagonists: pathogenesis and pathophysiology of familial neurohypophyseal diabetes insipidus, G. Robertson et al; correction of water retention due to vasopressin excess by non-peptide vasopressin antagonist, T. Saito et al.