Biomaterial Database

Plasma progesterone level during delayed implantation, gestation and postpartum period in the armadillo. 1980

R D Peppler, and S C Stone

Blood samples were obtained weekly from 21 pregnant armadillos during the months of June through May and analyzed by radioimmunoassay for progesterone concentration. Following ovulation and mating, the plasma concentration of progesterone remained elevated (greater than 13 ng/ml) during the 3.5 months of delayed implantation. As implantation occurred in October, the plasma concentration of progesterone increased and remained at approximately 20 ng/ml in all animals through March. Ten of the animals delivered during March and April in captivity. The date of the blood sample collection was calculated as the number of days before or after parturition. Progesterone concentration was not decreased prior to delivery and remained elevated for as long as 55 days following parturition.

UI	MeSH Term	Description	Entries
D010064	Embryo Implantation	Endometrial implantation of EMBRYO, MAMMALIAN at the BLASTOCYST stage.	Blastocyst Implantation,Decidual Cell Reaction,Implantation, Blastocyst,Nidation,Ovum Implantation,Blastocyst Implantations,Decidual Cell Reactions,Embryo Implantations,Implantation, Embryo,Implantation, Ovum,Implantations, Blastocyst,Implantations, Embryo,Implantations, Ovum,Nidations,Ovum Implantations
D010065	Embryo Implantation, Delayed	Delay in the attachment and implantation of BLASTOCYST to the uterine ENDOMETRIUM. The blastocyst remains unattached beyond the normal duration thus delaying embryonic development.	Blastocyst Implantation, Delayed,Delayed Embryo Implantation,Implantation, Ovum, Delayed,Nidation, Delayed,Ovum Implantation, Delayed,Blastocyst Implantation Inhibition,Blastocyst Implantation Suppression,Embryo Implantation Inhibition,Embryo Implantation Suppression,Blastocyst Implantations, Delayed,Delayed Blastocyst Implantation,Delayed Blastocyst Implantations,Delayed Embryo Implantations,Delayed Nidation,Delayed Nidations,Delayed Ovum Implantation,Delayed Ovum Implantations,Embryo Implantations, Delayed,Implantation Inhibition, Blastocyst,Implantation Suppression, Blastocyst,Implantation Suppression, Embryo,Nidations, Delayed,Ovum Implantations, Delayed
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011270	Pregnancy, Animal	The process of bearing developing young (EMBRYOS or FETUSES) in utero in non-human mammals, beginning from FERTILIZATION to BIRTH.	Animal Pregnancies,Animal Pregnancy,Pregnancies, Animal
D011374	Progesterone	The major progestational steroid that is secreted primarily by the CORPUS LUTEUM and the PLACENTA. Progesterone acts on the UTERUS, the MAMMARY GLANDS and the BRAIN. It is required in EMBRYO IMPLANTATION; PREGNANCY maintenance, and the development of mammary tissue for MILK production. Progesterone, converted from PREGNENOLONE, also serves as an intermediate in the biosynthesis of GONADAL STEROID HORMONES and adrenal CORTICOSTEROIDS.	Pregnenedione,Progesterone, (13 alpha,17 alpha)-(+-)-Isomer,Progesterone, (17 alpha)-Isomer,Progesterone, (9 beta,10 alpha)-Isomer
D004490	Xenarthra	A superorder of New World mammals characterized by the absence of incisors and canines from among their teeth, and comprising the ARMADILLOS and the SLOTHS. The superorder is distinguished from all others by what are known as xenarthrous vertebrae (xenos, strange; arthron, joint): there are secondary, and sometimes even more, articulations between the vertebrae of the lumbar series. The superorder in part was formerly called Edentata. (From Random House Unabridged Dictionary, 2d ed; Walker's Mammals of the World, 5th ed, vol. I, p515)	Cingulata,Edentata
D005260	Female		Females
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001135	Armadillos	Burrowing, chiefly nocturnal mammals of the family Dasypodidae having bodies and heads encased in small bony plates. They are widely distributed in the warmer parts of the Americas.	Armadillo
D049590	Postpartum Period	In females, the period that is shortly after giving birth (PARTURITION).	Puerperium,Postpartum,Postpartum Women,Period, Postpartum,Women, Postpartum