Results 71 to 80 of about 78,143 (322)

Features of the formation of pathogenetic changes of the placental complex on the background of intra-uteronomy infection

open access: yesJournal of V. N. Karazin Kharkiv National University: Series Medicine, 2022
. One of the main complications during early embryogenesis and placentation is placental insufficiency. Under the influence of various factors, namely infectious factors, which, depending on the biological specificity, negatively affect the germ cells of
Alisa Hoshovska
doaj   +1 more source

Doppler sonography of the uterine and the cubital arteries in normal pregnancies, preeclampsia and intrauterine growth restriction: evidence for a systemic vessel involvement [PDF]

open access: yes, 2006
Aims: The decrease in uterine resistance during normal pregnancy is known to be related to invading trophoblast cells which derive from placental tissue. Uterine and peripheral resistance is elevated in preeclampsia.
Friese, Klaus   +4 more
core   +1 more source

Hyperandrogenemia Induces Trophoblast Ferroptosis and Early Pregnancy Loss in Patients With PCOS via CMA‐Dependent FTH1 Degradation

open access: yesAdvanced Science, EarlyView.
In PCOS patients with hyperandrogenemia, decreased ferritin heavy chain 1 (FTH1) causes Fe2⁺ overload and ferroptosis in trophoblasts. Androgens induce FTH1 protein degradation via AR‐LAMP2A‐mediated chaperone‐mediated autophagy pathway, leading to placental development disruption and early pregnancy loss. Metformin mitigates androgen‐induced placental
Hanjing Zhou   +10 more
wiley   +1 more source

Causes and Consequences of the Dysregulated Maternal Renin-Angiotensin System in Preeclampsia

open access: yesFrontiers in Endocrinology, 2019
A healthy pregnancy outcome depends on the activation of the renin-angiotensin-aldosterone system (RAAS) as a regulated, integrated response to the growing demands of the conceptus.
Eugenie R. Lumbers   +9 more
doaj   +1 more source

PLACENTAL CIRCULATION

open access: yes, 1962
One of the most important developments of recent years in the field of uterine physiology has been the recognition that the endometrial changes occurring during the menstrual cycle and those associated with pregnancy are interlocking, sequential events in an ordered progressions from the first day of the cycle to parturition--and not separate phenomena
openaire   +1 more source

Perfluorooctanoic Acid Exposure Causes Macrophage Ammonia Retention and Induces Spontaneous Miscarriages

open access: yesAdvanced Science, EarlyView.
PFOA exposure induces pregnancy loss by promoting glutaminolysis, which further causes ammonia accumulation in macrophages. Cellular ammonia retention results in damage to mitochondria and lysosomes, which leads to cell death eventually. Impaired lysosomes also decrease the secretion of the Cathepsin B (CTSB), and attenuate macrophage infiltration and ...
Yongbo Zhao   +6 more
wiley   +1 more source

Expressão imunoistoquímica de diferenciação e crescimento celular em cardiomiócitos de neonatos Immunohistochemical expression of cell differentiation and growth in neonate cardiomyocytes

open access: yesArquivos Brasileiros de Cardiologia, 2012
FUNDAMENTO: As alterações cardíacas na fase de transição do coração fetal para a vida extrauterina vêm sendo exploradas por inúmeras pesquisas em animais, e os mecanismos celulares responsáveis por essas modificações ainda não estão bem documentado em ...
Tarcísio Fulgêncio Alves da Silva   +4 more
doaj  

EFFECTS OF SECRETABLE PLACENTAL FACTORS UPON SECRETION OF CYTOKINES BY THP-1 MONOCYTE-LIKE CELLS

open access: yesМедицинская иммунология, 2014
. Мonocytes in feto-placental circulation are exposed to factors secreted by placental tissue. These factors influence monocyte functions in pregnancy.
Ya. S. Onokhina   +4 more
doaj   +1 more source

Epirubicin. A new entry in the list of fetal cardiotoxic drugs? Intrauterine death of one fetus in a twin pregnancy. Case report and review of literature [PDF]

open access: yes, 2015
BACKGROUND: Current knowledge indicate that epirubicin administration in late pregnancy is almost devoid of any fetal cardiotoxicity. We report a twin pregnancy complicated by breast cancer in which epirubicin administration was causatively linked to ...
BRUNELLI, Roberto   +10 more
core   +2 more sources

Dynamics of the Mammalian Placental Metabolome in Placentogenesis and Embryonic Development

open access: yesAdvanced Science, EarlyView.
This study identifies three metabolic stages (E8.5, E9.5–10.5, E11.5–14.5) and two transition periods (E8.5–9.5, E10.5–11.5) in mouse placental development. NAD(H) emerges as a key dynamic metabolite that enhances embryonic growth through accelerated segmentation and increased proliferation of mouse embryonic stem cell (mESC)‐induced presomitic ...
Gang Chen   +11 more
wiley   +1 more source

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