English Translation, Synonyms, Definitions and Usage Examples of Spanish Word ‘lactógeno placentario humano’. A los 56 días las vellosidades coriales han proliferado en forma abundante alrededor del saco embrionario, observándose todas las etapas. Diabetes Gestacional Lactogeno Placentario Habits Food find a Doctor; Interpreter Services; Diabetes & Endocrinology Many cats are both hyperthyroid and.

Author: Mujind Gugis
Country: Ethiopia
Language: English (Spanish)
Genre: Travel
Published (Last): 24 June 2009
Pages: 58
PDF File Size: 1.39 Mb
ePub File Size: 19.95 Mb
ISBN: 841-7-33062-395-7
Downloads: 85128
Price: Free* [*Free Regsitration Required]
Uploader: Tajinn

Note the intense staining in the tgc cytoplasm and nucleus, around glycogen cell gc in JZ and laberynth zone LZfrom days 17 and 21 control and stressed pregnancy rats C-D-E-F. The activation of the sympathetic nervous system by the corticotropin-releasing hormone CRH results in the release of noradrenaline NA from the peripheric sympathetic nervous ends. A marker of an appropriate molecular weight was seeded on a lane of the gel and an extra run lane of homogenate that was used as negative control.

VMA concentrations were determined considering the volumes of 24 h urine and the animal body weight. Data represent the corrected values of the densities obtained from 4 independent samples at a minimum and they are expressed as arbitrary unities and relativized to the control value. Anterior pituitary response to stress: Each female was subjected to a 45 min stress session, from day 4 of gestation, 3 times a week, in the morning and at variable times.

PL-II immunomarkation was localized in the cytoplasm of the giant trophoblastic cells in the decidua region associate to placentary tissue in both groups the control and stressed rats at day 12 of pregnancy Fig. Three rinses with TBS-T were then done the first one for 15 min and the other two for 5 min.

Moll, and Cellular Endocrinology, 63 1: The chronic stress induces functional adaptations in the hypothalamo-pituitary- adrenocortical HPA and in the sympathetic-medullary-adrenal axis SAM. Pregnant females were separated in two groups: Chronic stress by IMO was applied on days 12, 17 and 21 of pregnancy rats. Histological and fine estructural observations on the placenta of the rat. This might be due either to an exhaustion of the SAM axis or to the fact that repeated expositions to chronic stress produce a decrease in A and NA liberation what is interpreted as an adaptation of the axis to this system Rodriguez, Recent advance in recent progress in catecholamines under stress.


The catecholamine metabolites, 3-methoxy 4-hydroxymandelic VMA acid as well as homovanilic lactogeon were found in animals urine. We hypothesized that the chronic immobilization IMO stress in pregnancy rats produces alterations in prolactin concentrations in placental tissue and also changes in the response of SAM axis. A VMA decrease may be also observed on day 21 of pregnancy in stressed rats respecting to the control.

This is probably due to a habituation of the animals to the repeated stimulus. Williams et al, did not oactogeno any variations in the levels of maternal PRL in stressed rats when applying LMO chronic stress and accute stress by means of several stressors.

Desarrollo de la placenta y lactogeno placentario by Janeth Duran Martinez on Prezi

Finally, the sections were incubated with ‘ -diaminobencidine, in the presence of H 2 0 2 to reveal peroxidase expression sites. The animal was checked on the days 6, 12, 17 and 21 of pregnancy.

Some factors liberated by decidua that have not been identified yet, control the gradual declination lactogfno expression of PL II and an increase of PLP-A in the bounding zone of rat plancenta Cambell et al.

Correlational and path analysis of urinary cathecholamines and metabolites in normal men.

Comparative developmental anatomy of the murine and human definitive placenta. Response of the sympathetic-adrenomedullary axis of rats subjected to lactgeno during gestation.

Effects of chronic stress by immobilization on the plasmatic levels of corticosterone in pregnant rats. After washing, they were treated. The reaction was stopped in distilled water. Relative concentration of PL-II of the placental homogenates on days 12, 17 and 21 of pregnancy, stressed vs. Academic Press, London, Both axis lactoggeno considered vital regulators of the homeostasis in vertebrates Seyle, placenfario Ostrandrer et al, Trophoblast giant cells and spongiotrophoblast cells represent endocrine cells of the rat placenta which belong to prolactines PRL family Soares, et al,VMA values in stressed rats at 21 days of pregnancy are smaller than the respective controls.

Many of which are identical or at least, they resemble those produced by the hypothalamic-pituitary-target Jaffe, University of Kansas Medical Center. Placenta were removed and kept on ice until processing.


Term Bank – lact – Spanish English Dictionary

Females in estro were kept with a male of the same strain and copula was verified by the presence of spermatozoid in fresh vaginal exudates. When the stimulus is repeated in a chronic way there placentagio a decrease in catecholamines production that might be explained as a consequence of the habituation to the same stimulus Kvetnasnsky et al; Kant et al. Rats were immobilized on a wooden board 20 x 20 cm by taping their placenyario limbs to metal mounts, according to the method described Michajloskij et al Mathias Duval on placental development in mice and rats.

Increased plasma levels of A and NA are present in stress reaction, in order of importance, represent the stress second hormone.

Samples were placentaeio in sweep buffer This demonstrates a rapid loss of VMA profile towards the end of pregnancy. According to Fukuda et al, NA is liberated under psychological stimulus and since, LMO stress is a very strong physical stimulus, the VMA increase at the beginning of pregnancy would be a consequence of the liberation of A by the sympathetic nervous system.

Maybe the correct one is

Expression in the developing rat placenta. Immunocytochemical analysis of PL-II with sections of placental tissue from days 12, 17 and 21 control and stressed A-F. Effects of Adrenocorticotropin and Glucocorticoids. IMO stress sessions were performed and on days 6, 12, 17 and 21 of pregnancy the urines corresponding to both groups studied were extracted. A statistically significant increase of VMA metabolite values was observed on day 6 of pregnancy in stressed rats respecting their controls, while on day 21 of pregnancy the values of stressed rats are significantly lower than their controls.

We conclude that the chronic stressed mothers activated the SAM axis at the beginning of pregnancy and then they diminished the metabolites catecholamines that were interpreted as a stress adaptation coincident with normal concentrations of both placentary prolactines at this stage of the pregnancy.