What's the difference between pineal and pituitary?
Pineal
Definition:
(a.) Of or pertaining to a pine cone; resembling a pine cone.
Example Sentences:
(1) Both treatments depressed nocturnal pineal melatonin content in rats and hamsters.
(2) In this study, pinealectomy did not alter the inhibitory effect of testosterone on neuroendocine-gonadal activity in the male rat, suggesting that the pineal gland does not mediate the response of the rat hypothalamic-pituitary axis to testosterone.
(3) Only methoxyindole acetic acid was detectable after incubation of unstimulated and alpha-adrenergic-agonist-treated pineal glands.
(4) Striated muscle fibres were found in each of twenty consecutive pineal glands cultured from individual neonatal rats.2.
(5) Parallel changes in free T4 and the free T4 index indicate adequacy of the index in representing pineal-induced changes in free T4.
(6) The results indicate that, regardless of the photoperiod, no clear functional relationship can be found between the avian pineal gland and thyroid function, although a transitory increase in T4 levels was seen in both pinealectomized and sham-operated birds shortly after the operations.
(7) The pineal of certain lizards possesses a finger-like projection that extends toward the parietal eye.
(8) A putative pineal metabolite, 5-methoxyindole-3-acetic acid, was quantified in human urine by a gas chromatographic-mass spectrometric method.
(9) These data suggest that SCN plays a significant role in controlling the rhythmic activity of LHA, VMN and the pineal gland.
(10) The smooth endoplasmic reticulum present in the terminals of the offshoots of the light pinealocytes is possibly involved in pineal indoleamine synthesis.
(11) The implications of these findings are discussed in relation to pineal influences on parturition.
(12) The possibility of pineal gland involvement as a part of "neuroendocrine dysfunction" in some of the psychiatric diseases has received special attention in recent years.
(13) Using thin layer chromatography on fluorescent silica gel plates, 5 indoles were identified and 6 unknown substances isolated from the pineal incubate and from both extracts.
(14) A similar gold labelling of organelles was observed in the ependyma and pineal neurons.
(15) These data suggest that neither the pineal nor the eyes are central components of the circadian pacemaking system in Dipsosaurus, nor is melatonin critically involved in maintaining its organization.
(16) When outcome was examined in patients who were stuporous or comatose on admission, a significant increase in septal shift was found among patients with a poor outcome, but there was no significant relationship between outcome and degree of pineal or aqueductal shift.
(17) The pineal organ of the cat was studied by postembedding gamma-aminobutyric acid (GABA) immunocytochemistry.
(18) Pineal serotonin is stored in equilibrium in two compartments, i.e., the parenchymal cells and the adrenergic nerves and thus is most probably reduced in both sites.
(19) Pineals incubated in hormone-free medium and unincubated glands served as controls.
(20) Further, the present study shows that neither the alpha 1- nor beta-adrenoceptor density of the pineal declines as rats age.
Pituitary
Definition:
(a.) Secreting mucus or phlegm; as, the pituitary membrane, or the mucous membrane which lines the nasal cavities.
(a.) Of or pertaining to the pituitary body; as, the pituitary fossa.
Example Sentences:
(1) After 2 weeks, the native and heterotopic pituitaries were assayed for SP, TSH, PRL, and LH.
(2) It is suggested that the normal cyclical release of LH is inhibited in PCO disease by a negative feedback by androgens to the hypothalamus or the pituitary, and that wedge resection should be reserved for patients in whom other forms of treatment have failed.
(3) Pituitary weight, mitotic index and chromosomes were studied in male rats following a single or repeated dose of estradiol-benzoate for a total period of 210 days.
(4) A neonate without external malformation had undergone removal of a nasopharyngeal mass containing anterior and posterior pituitary tissue.
(5) The results clearly show that the acute hyperthermia of unrestrained rats induced by either peripheral or central injections of morphine is not caused by activation of the pituitary-adrenal axis.
(6) In this study, pinealectomy did not alter the inhibitory effect of testosterone on neuroendocine-gonadal activity in the male rat, suggesting that the pineal gland does not mediate the response of the rat hypothalamic-pituitary axis to testosterone.
(7) Studies were conducted to evaluate the effects of acute (24 h) thermal stress on anterior pituitary function in hens.
(8) SD corrected high serum PTH and low serum testosterone (sT) levels, while pituitary hormones (LH, FSH, PRL) were elevated and did not change.
(9) We have reviewed our experience in the radiographic and ophthalmologic evaluation of 1001 patients with symptoms suggesting the presence of a pituitary, prolactin-secreting adenoma.
(10) The present in vitro studies show that it is found as beta-endorphin in bovine pituitary slices incubated with radioactive amino acid precursor [35S]methionine.
(11) The 2A8 clone, a normal diploid rat anterior pituitary cell strain, was investigated by immunocytochemistry to determine the cell types into which the clonal cells differentiated in vivo and in vitro.
(12) Accordingly, the present studies were conducted to determine whether acute OVX-induced FSH hypersecretion can be elicited in an animal model in which the anterior pituitary gland is isolated from diencephalic chemical signals, and if so, whether the hypersecretion could be abated by the FSH-suppressing protein, follistatin.
(13) Serum and pituitary gonadotropins, hypothalamic luteinizing hormone-releasing hormone (LHRH), and the profile of FSH forms across the isoelectric focusing gel were determined by radioimmunoassay.
(14) Recovery after EEDQ administration showed that both receptor production rate and degradation rate constants of anterior pituitary D2 and striatal D1 receptors were slowed after chronic estradiol treatment, whereas recovery rates for striatal D2 dopamine receptors were unaffected.
(15) These results suggest that changes in pituitary and testicular function in rats made diabetic by STZ treatment are secondary to changes in hypothalamic catecholamine metabolism.
(16) This hormone alone or together with hPL could therefore take over the role of the lacking pituitary GH in the mother during the last half of pregnancy.
(17) We examined 8 normal subjects and 16 patients with non-functioning pituitary tumors with a combined anterior pituitary test to evaluate the clinical usefulness of the test.
(18) In 5 of the 7 patients with an initially abnormal pituitary fossa, serial radiological studies revealed remodelling in 3.
(19) On the other hand, immunofluorescence in anterior pituitary cells was faint and detected in only 2 of 28 patients with Graves' disease (7.1%) after absorption of their sera with rat liver aceton powder.
(20) In this study we identify for the first time physiological substrates for protein kinase C in intact pituitary cells.