نتایج جستجو برای: placentation

تعداد نتایج: 1778  

2015
Yuki Nakaya Takayuki Miyazawa Welkin Johnson

Recent developments in genome sequencing techniques have led to the identification of huge numbers of endogenous retroviruses (ERV) in various mammals. ERVs, which occupy 8%-13% of mammalian genomes, are believed to affect mammalian evolution and biological diversity. Although the functional significance of most ERVs remains to be elucidated, several ERVs are thought to have pivotal roles in ho...

Journal: :Journal of the College of Physicians and Surgeons--Pakistan : JCPSP 2009
Uroosa Ibrahim Marium Tariq Rubina Hussain

Morbidly adherent placenta is a rare clinical condition resulting from abnormally invasive implantation of the placenta into the uterine substance and potentially into the surrounding organs (percreta). We report a case of invasive placentation extending through the uterine wall into the bladder and causing primary and recurrent secondary postpartum hemorrhage. It is emphasized that to avoid ca...

2015
Laurence A Cole

A major questions arises in paleontology, anthropology and archeology, how did primates, hominids and humans develop a large brain [1-4]? Most mammals and early primates had a small brain, approximately 0.1% of total weight. Brain growth was limited by epitheliochorial placentation and inefficient mechanisms for transporting nutrition from mother to fetus, nutrients had to pass through five tis...

2008
B. MORRIS

T H E placentation of Erinaceus europea has been described by Hubrecht (1889). An account of the development and structure of the avascular and vascular yolksac placentae which are formed in this species has been presented (Morris, 1953). Reichert's membrane is formed in the wall of the yolk-sac and it persists to term. A further study of the yolk-sac placentae, Reichert's membrane, the decidua...

2017
Gloria Valdés

The potent and now longstanding evidence of the association between placentation-related disorders and cardiovascular disease should be translated into clinical practice in order to introduce a preventive approach to future obstetric and cardiovascular diseases. The purpose of this review is to integrate cardiovascular risk/disease and obstetric complications, which are linked by endothelial dy...

Journal: :American Journal of Obstetrics and Gynecology 2021

Background: Adrenomedullin (ADM) is a vasoactive peptide hormone found in adrenal medulla, central nervous system, immune cells, and muscle, expressed the uterus placenta. ADM plays important roles angiogenesis, vasodilation, inflammation. Altered levels of have been implicated adverse pregnancy outcomes like fetal growth restriction pre-eclampsia. Animal models can be useful tools for examinin...

Journal: :Twin research : the official journal of the International Society for Twin Studies 2003
Catherine Derom Robert Derom Ruth J F Loos Nele Jacobs Robert Vlietinck

This study investigates the validity of retrospective determination of chorion type by asking the question to the mother about the number of placentas. In the "East Flanders Prospective Twin Survey" (EFPTS), accurate information on the placentation and zygosity of the multiples was collected prospectively. The mothers of 231 monozygotic (95 dichorionic and 136 monochorionic) twins and 255 dizyg...

2011
Nicola R Winder Ghattu V Krishnaveni Jacqueline C Hill Chitra LS Karat Caroline HD Fall Sargoor R Veena David JP Barker

AIM To determine whether the size and shape of the placental surface predict blood pressure in childhood. METHODS We studied blood pressure in 471 nine-year-old Indian children whose placental length, breadth and weight were measured in a prospective birth cohort study. RESULTS In the daughters of short mothers (<median height), systolic blood pressure (SBP) rose as placental breadth increa...

Journal: :Animals 2023

Several key developmental events are associated with early embryonic pregnancy losses in beef and dairy cows. These problems observed at a greater frequency pregnancies generated from in-vitro-produced bovine embryos. This review describes critical that arise during oocyte maturation, fertilization, development, compaction blastulation, cell lineage specification, elongation, gastrulation, plac...

Journal: :Journal of Animal Science 2022

Abstract Placental dysfunction originates during placental development, specifically the events of placentation. Vascularization is a key component placentation due to its role in fetal-maternal exchange. Cytokines are regulators development; signaling chemokine ligand 12 (CXCL12) and receptor (CXCR4) drives vascularization. Utilizing an vivo sheep model, we demonstrated that suppressing CXCL12...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید