(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.