Modulation of ionic channel properties and synaptic functions by neurotransmitters and hormones is called neuro-modulation and may be the basis for many long-lasting changes in animal behavior, for example, changes in the arousal or motivational states. We have previously shown in a teleost, the dwarf gourami, that the terminal nerve (TN) cells are a major component of the gonadotropin-releasin...

HORMONE PRODUCTION IN ENDOCRINE TUMOURS. Ciba Foundation Colloquia on Endocrinology, Vol. 12. G.E.W. Wolstenholme and Maeve O'Connor, Eds. Boston, Little, Brown and Company, 1958. 351 pp. $9.00. This volume is the twelfth in the series of Ciba Foundation Colloquia on Endocrinology, and included in this book is an index to all twelve volumes. According to the preface these published proceedings ...

OBJECTIVE The role of the brain as a target for angiotensin converting enzyme (ACE) inhibitors in the treatment of heart failure and hypertension is unclear. To test the hypothesis that ACE inhibitors may modulate other central neuropeptide systems such as the central vasopressin system, we studied the effects of chronic treatment with the ACE inhibitor, quinapril, on ACE activity and on centra...

LINDSAY SYMON and BRIAN KENDALL (London) had used vertebral angiography for the past five years as a definitive investigation for providing details of the sites and probable natures of cerebellopontine angle lesions. Advantages of angiography were its performance under basal sedation with consequent diminution of the disturbance of intracranial dynamics consequent on anaesthesia, and its potent...

Endosulfan, a chlorinated cyclodiene insecticide, was administered orally at 1.5, 3, 6, and 9 mg/kg per day to normal hemicastrated virgin mice for 15 consecutive days to examine the effect on ovarian function. Sham-operated and hemicastrated control mice were administered a similar volume of olive oil. The vaginal smear and body weight of the mice were recorded daily and mice were sacrificed o...

OBJECTIVES The aim of this paper is to test the influence of long-term application of the low-frequency magnetic fields in magnetotherapy and magnetostimulation on cortisol secretion in men. MATERIALS AND METHODS Patients were divided into three groups: 16 men underwent magnetotherapy and 20 men (divided into two groups) underwent magnetostimulation. Magnetotherapy - 2 mT induction, 40 Hz, bi...

The nonapeptides arginine-vasotocin (AVT) and isotocin (IT), which are the teleost homologues of arginine-vasopressin and oxytocin in mammals, have well established peripheral effects on osmoregulation and stress response, and central effects on social behavior. However, all studies that have looked so far into the relationship between these nonapeptides and social behavior have used indirect m...