Conditions associated with placental dysfunction.

11:57 EDT 29th July 2015 | BioPortfolio

Summary of "Conditions associated with placental dysfunction."

Placental dysfunction is a term to describe suboptimal placental function leading to variations in the fetal supply of all its necessary required nutrients as well as the disruption in the cleansing of fetal catabolic products. The dysfunctional placenta may interrupt the manufacturing of other essential factors involved in pregnancy conservation, can compromise the fetal appropriate, atraumatic and sterile medium to grow, the immunologic shield from maternal antibodies and the normal amniotic fluid levels. Placental dysfunction can lead to a group of disorders representing a diverse and important category of pathological processes conducting to fetal and neonatal morbidity and mortality. The mechanisms by which these inflammatory processes cause death and disability are diverse and can be separated into four distinct classes: first, placental damage with loss of function; second, induction of premature labor; third, release of inflammatory mediators; fourth, transplacental infection. Several conditions have been associated with placental dysfunction: IUGR, hypertension, hypoxic-ischemic injury, preterm labor, and fetal death.

Affiliation

Department of Obstetrics and Gynecology, Boonshoft School of Medicine, Wright State University, Dayton, OH, USA - gary.ventolini@wright.edu.

Journal Details

This article was published in the following journal.

Name: Minerva ginecologica
ISSN: 0026-4784
Pages:

Links

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Medical and Biotech [MESH] Definitions

A polypeptide hormone of approximately 25 kDa that is produced by the SYNCYTIOTROPHOBLASTS of the PLACENTA, also known as chorionic somatomammotropin. It has both GROWTH HORMONE and PROLACTIN activities on growth, lactation, and luteal steroid production. In women, placental lactogen secretion begins soon after implantation and increases to 1 g or more a day in late pregnancy. Placental lactogen is also an insulin antagonist.

Methods used for the assessment of placental function.

Extracts prepared from placental tissue; they may contain specific but uncharacterized factors or proteins with specific activities.

Hormones produced by the placenta include CHORIONIC GONADOTROPIN, and PLACENTAL LACTOGEN as well as steroids (ESTROGENS; PROGESTERONE), and neuropeptide hormones similar to those found in the hypothalamus (HYPOTHALAMIC HORMONES).

Conditions characterized by persistent brain damage or dysfunction as sequelae of cranial trauma. This disorder may result from DIFFUSE AXONAL INJURY; INTRACRANIAL HEMORRHAGES; BRAIN EDEMA; and other conditions. Clinical features may include DEMENTIA; focal neurologic deficits; PERSISTENT VEGETATIVE STATE; AKINETIC MUTISM; or COMA.


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