Receptive uterine environment: maternal control, control embryo, embryonic death
Journal Title: Revista MVZ Cordoba - Year 2010, Vol 15, Issue 1
Abstract
The receptive environment on the uterus, or embryotrophic environment, it is the mother’s capacity to successfully hostel the conceptus. The uterus receptivity depends on the correct synchrony of the conceptus - corpus luteum – endometrium axis and it is controlled by two mechanisms; the first one is controlled by the mother through the relationship between estrogens (E2) y progesterone (P4); The second one is mediated by the trophoblast through the secretion of interferon tau. The estrogens are synthesized in the follicular cells and modulate physical, morphological and behavioral changes during the female hit. P4 is synthesized by the corpus luteum and one of its functions is to promote the gestation’s maintenance. When fertilization and embryo development is successful the INFt exert its luteotrhopic effects between 15th and 19th days of gestation, unchaining mother’s recognition of gestation process to avoid the luteal regression and to guarantee the embryo survival. Besides, the INFt stimulate the mother’s organism to produce a microenvironment that provides optimal nutritional, immunological and physiological conditions to embryo. This review wants to contextualize the endometrial changes that provide the necessary conditions for the embryo development and the established of the gestation.
Authors and Affiliations
Ángela Gonella D, MVZ *| Universidad Nacional de Colombia, Facultad de Medicina Veterinaria y de Zootecnia, Grupo de investigación en Fisiología de la Reproducción. Bogotá, Colombia.Correspondencia: amsaavedrag@unal.edu.co, Henry Grajales L, Ph. D| Universidad Nacional de Colombia, Departamento de Ciencias para la Producción Animal, Facultad de Medicina Veterinaria y de Zootecnia.Bogotá, Colombia., Aureliano Hernández V, Ph. D| Universidad Nacional de Colombia, Departamento de Ciencias para la Salud Animal, Facultad de Medicina Veterinaria y de Zootecnia. Bogotá, Colombia.
Keywords
Related Articles
- EP ID EP3153
- DOI -
- Views 386
- Downloads 20
Association between leptin receptors in the testicle, leptin and testosterone levels in puber male calves
Objectives. To describe the presence of leptin receptors (ObR) in the testicle during puberty in calves and study the possible association between the expression of the testicles and the levels of leptin (L) and testoste...
Foraging density for squirrel monkey Saimiri sciureus in two forests in Puerto Lopez - Colombia
Objective. Forest remnants were analyzed to determine the density of squirrel monkeys (Saimiri sciureus) and the degree of alteration of the forest, by selecting areas for the conservation and maintenance of the species...
Injuries in post-weaning pig organs, induced by the E. coli lipopolysaccharide
Objective: To evaluate the effects of the intake of several levels of lipopolysaccharides (LPS) from E. coli on clinical manifestations and injuries in organs of newly weaned pigs. Materials and methods. The experiment w...
DAILY GAIN AND WEIGHT IN WEANED CROSSED CALVES Bos taurus WITH Bos indicus IN HUMID TROPIC
The aim of this work was to value the daily gain and the weight of the weaned of calves of Bos taurus it crosses it with Bos indicus in a proportion from ¼ to ¾ approximately, the registrations of 302 calves were used,...
THE EFFECT OF in Vitro MATURATION OF BOVINE OOCITES WITH FETAL BOVINE SERUM ON THEIR MITOCHONDRIAL ACTIVITY FOLLOWING DEVITRIFICATION
Objective. To evaluate the effect of in vitro maturation (IVM) with fetal calf serum (FCS) on the mitochondrial activity (membrane potential) of devitrified bovine oocytes. Materials and methods. Bovine oocytes were coll...