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Pregnant rats (starting on E5) were exposed chronically to carbon monoxide (CO) from gestational days 5-20. In the postnatal period, rat pups were grouped as follows: group A: prenatal exposure to CO only; group B: prenatal exposure to CO then exposed to CO from postnatal day (P) 5 to P20; group C, control (air without CO). Groups A and B showed similar(More)
Morning levels of serum melatonin, FSH, LH, prolactin (PRL), progesterone and estradiol were studied by RIA during the ovarian cycle, perimenopause and menopause in 79 healthy women. FSH and LH levels showed a slight nonsignificant increase from the fertile period to perimenopause, exhibiting a significantly greater increase during menopause. PRL,(More)
Neurilemomas (schwannomas) are relatively rare tumours, a high proportion of which develop in the head and neck.' A review of 480 benign neurilemomas recorded in the literature mentioned only 24 cases arising from the brachial plexus,1-5 all of which were characteristically difficult to diagnose, since they appeared as an increase in the supraclavicular(More)
The effects of pineal gland on kidney-adrenal axis have been studied in male rats. Rats were pinealectomized and exposed to a photoperiod of 12 h light: 12 h dark. Plasma renin activity (PRA), corticosterone and corticotropin (ACTH) levels were measured at 10, 20 and 35 days postpinealectomy. Pinealectomy increased corticosterone and ACTH levels and(More)
Plasma renin activity (PRA), plasma renin substrate (PRS), plasma renin concentration (PRC), and plasma aldosterone concentration (PAC) were measured in normal full-term newborn infants and infants up to 22 days after birth (36 in all). As compared to the control, PRA and PAC levels were significantly higher (p less than 0.001) in cord blood, and in 2 to 6(More)
The role of the pituitary-adrenal axis on receptor binding and diurnal rhythmicity of benzodiazepines (BNZ) was assessed in the rat cerebral cortex. Groups of intact, adrenalectomized (ADx) and/or hypophysectomized (HPx) rats were killed at six different time intervals during the 24-hour cycle. BNZ binding was estimated by Scatchard analysis of(More)
OBJECTIVE The aim of the present study was to investigate the effect of aging on several parameters related to glucose metabolism, proliferation and differentiation in the pancreas and how GH administration to old SAMP8 mice could affect these parameters. MATERIALS AND METHODS Pancreas samples were obtained from two types of male mice models:(More)
The functional development of semicircular canals and some brainstem structures of the auditory system was followed in parallel with time in control and propylthiouracyl-induced hypothyroid pigmented rats by respective recording of postrotatory nystagmus response and auditory evoked brainstem potentials, with the aim of discovering the timing of permanent(More)
Previous studies indicate that the pineal gland alters prolactin secretion, and it was suggested that at least part of the effect of the pineal hormone melatonin on prolactin release may be mediated by the hypothalamic structures. In this study, pinealectomy and lesions of the suprachiasmatic nuclei were found to alter serum levels of prolactin in the same(More)
BACKGROUND AND OBJECTIVE Target-controlled infusions (TCIs) of remifentanil and fentanyl in conscious sedation regimes for extra-corporeal shock-wave lithotripsy have not been reported. We estimated the effect site concentrations of remifentanil and fentanyl needed to obtain adequate analgesia in 50% of patients (EC50) and compared both drugs in terms of(More)