(1) Locally directed cell migration was observed in a group of cells in 1. which were involved in a process of aggregation, the latter being probably related to precocious formation of organ primordia.
(2) The importance of precocious development for planning teratological studies is emphasized.
(3) We used two experimental paradigms inspired by developmental biology to study how bees obtain information on changing colony needs that results in precocious foraging.
(4) Adrenocorticotropic hormone (ACTH) infusion performed in five patients with precocious adrenarche produced at least a 50 greater than increase in urinary T excretion in all and a similar increase in Adiol excretion in four of five patients.
(5) Most of what is understood about precocious puberty in boys comes from boys with precocious puberty secondary to poorly controlled CAH.
(6) As a precociously talented young artist, his interests didn't lie with landscape or the countryside – "though I did collect frog spawn and things like that" – but more with the advertising, posters and signwriting he saw around town.
(7) The most recently discovered species, Enterocytozoon bieneusi, is known only from the small intestinal enterocytes of patients with the acquired immunodeficiency syndrome, and is easily differentiated from other microsporidia by the precocious development of spore organelles in the sporont and by the poor development of the endospore layer of the spore wall.
(8) Several lines of experimental evidence indicate that contact with the animal pole locus, or "target" region, is crucial for the change in phenotype of the SMCs: (1) the phenotypic change can be induced precociously by bringing the animal pole region within reach of the tip of the archenteron early in gastrulation.
(9) Tumors are rare, but well-documented causes of precocious puberty in both sexes.
(10) Long-acting GnRH agonists are the treatment of choice for central precocious puberty.
(11) The results obtained for the basal cortisol were in disaccordance with a previous report; however, we used a sensitive test to detect precocious involvement of the adrenal glands.
(12) The precocious reformation of the nuclear envelope may be responsible for the lengthening of metaphase.
(13) We propose a model whereby a protein repressor, under the control of PKA, inhibits precocious induction of stalk cell differentiation by DIF and so regulates the choice between slug migration and culmination.
(14) The precocious beginning of psychogenic diabetes insipidus, and some conclusions, on a difficult case of hard diagnosis are emphasized.
(15) Precocious puberty due to other causes can be treated more effectively with inhibitors of steroidogenesis and blockers of androgen action.
(16) In altricial species, embryonic growth rate and metabolic rate increase continuously during incubation, whereas in precocial species, embryonic growth rate declines shortly before hatching so that metabolic rate usually reaches a plateau before hatching.
(17) It remains unclear, however, whether such changes in expression of MAP2 represent a primary effect of the mutation or if it is only a precocious result of Purkinje cell degeneration.
(18) These events appeared to be similar to those occuring in the adult cycling rat, in precocious puberty induced by the administration of pregnant mare serum gonadotropins and during the onset of natural puberty.
(19) Recent evidence suggests that a group of children exists in whom premature sexual maturation occurs in the absence of pubertal levels of gonadotropins; that is, they have gonadotropin-independent precocious puberty.
(20) The mother of an 11-year-old epileptic, mentally retarded, and sexually precocious girl asked to have the girl sterilized.
Precocity
Definition:
(n.) The quality or state of being precocious; untimely ripeness; premature development, especially of the mental powers; forwardness.
Example Sentences:
(1) Synchronously transferred ova showed no such developmental precocity.
(2) The body composition of girls with idiopathic sex precocity was altered toward that at menarche of normals although the patients were much smaller and younger.
(3) The patient did not present sexual precocity, but primary amenorrhea.
(4) This finding confirms the precocity of the neural controls of drinking in the rat and shows that, like the controls of independent feeding, they are dissociated from those of suckling.
(5) A 7-year-old boy with sexual precocity of recent onset was found to have elevated levels of chorionic gonadotropin, alpha fetoprotein, and testosterone.
(6) Using Lie's technique in order to evidence the fuchsinophilia of the early ischaemic zones and Falck-Hillarp's technique to appreciate the disappearance of the myocardial adrenergic network, the authors followed up the concordance between the precocity of the ischaemia and the frequency of the acidophilia.
(7) Tissue from testicular biopsies performed in five of six boys with gonadotropin-independent precocity showed a range from incipient pubertal development of the tubules with proliferation of Leydig cells to the appearance of normal adult testes.
(8) Although endocrinopathies of polyostotic fibrous dysplasia have usually been ascribed to a central (hypothalamic) origin, the findings in this patient suggest autonomous hyperfunction of the peripheral endocrine glands, with the Cushing syndrome caused by hyperplastic nodules in the adrenal glands and the precocity by luteinized follicular cysts of the ovary.
(9) Data support the concept that idiopathic sexual precocity is a premature maturation of the HPO axis.
(10) In contrast, children with gonadotropin-independent precocity demonstrated an absence of gonadotropin pulsations, variable responses to luteinizing hormone-releasing hormone, lack of suppression of puberty in response to LHRHa, and cyclic steroidogenesis.
(11) The data are consistent with early maturation of the hypothalamic-pituitary-gonadal axis in idiopathic isosexual precocity.
(12) The authors report a case of a 7 years girl with this syndrome in whom the sexual precocity is due to an autonomous hyperfunctioning of luteinized follicular cysts of ovary.
(13) The sexual precocity of polyostotic fibrous dysplasia is occasionally accompanied by other endocrine disorders, but in only two previous instances has Cushing syndrome been reported.
(14) Gonadotropin-independent precocity (GIP) is a syndrome marked by precocious pubertal development in the absence of pubertal levels of gonadotropins.
(15) Compared with other primates, the fetal and neonatal macaque shows a developmental precocity which may be an ontogenetic adaptation to the socioecological setting of terrestrial life.
(16) When I first saw the film, I remember being stunned with Allen's sheer audacity in the scene where he remembers his old schoolroom, sitting alongside kids who harangue him in adult language about his sexual precocity: "For God's sake, Alvy, even Freud speaks of a latency period!"
(17) The precocity of operation seems of no interest to priapism itself but is mandatory to prevent secondary impotence.
(18) True progressive central precocity may now be managed with GnRH analogues, which effectively arrest pubertal changes as well as slow rapid linear growth and skeletal maturation.
(19) To date, a complex combination of multiple endocrinopathies including goiter, hyperthyroidism, acromegaly, Cushing syndrome, hyperprolactinemia, sexual precocity, hyperparathyroidism, and hypophosphatemic hyperphosphaturic rickets have been described in association with this syndrome.
(20) The reader is also reminded that many girls with idiopathic true sexual precocity do not require treatment to preserve height potential.