BGDA Practical Placenta - Placental Functions - Revision history

Z8600021 at 11:29, 2 Haziran 2019

2019-06-02T11:29:07Z

← Older revision		Revision as of 22:29, 2 Haziran 2019
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	* provides nutrient and energy		* provides nutrient and energy

			<br>

	{{~~BGDALabPlacenta~~}}		{{BGDA Practical 14 - Placental Functions Interactive}}

			<br>

			{{BGDALabPlacenta}}

	==Additional Information==		==Additional Information==

Z8600021 at 06:45, 1 Haziran 2019

2019-06-01T06:45:01Z

← Older revision		Revision as of 17:45, 1 Haziran 2019
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	\|-		\|-
	\| [[File:Human-adrenal gland 01.jpg\|300px]]		\| [[File:Human-adrenal gland 01.jpg\|300px]]
	\| Fetal adrenal cortex produces {{dehydroepiandrosterone sulphate}} ({{DHEA-S}}) ~~{{DHEA}}~~ that is converted by the placenta into estrogens{{#pmid:15635500\|PMID15635500}}{{#pmid:10503722\|PMID10503722}} Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.		\| Fetal adrenal cortex produces {{dehydroepiandrosterone sulphate}} ({{DHEA-S}}) that is converted by the placenta into estrogens{{#pmid:15635500\|PMID15635500}}{{#pmid:10503722\|PMID10503722}} Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.

	* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.		* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.

Z8600021: /* Placental Estrogen */

2019-06-01T06:42:37Z

Placental Estrogen

← Older revision		Revision as of 17:42, 1 Haziran 2019
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	\|-		\|-
	\| [[File:Human-adrenal gland 01.jpg\|300px]]		\| [[File:Human-adrenal gland 01.jpg\|300px]]
	\| Fetal adrenal cortex produces dehydroepiandrosterone ~~sulfate~~ ({{DHEA-S}}) {{DHEA}} that is converted by the placenta into estrogens{{#pmid:15635500\|PMID15635500}}{{#pmid:10503722\|PMID10503722}} Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.		\| Fetal adrenal cortex produces {{dehydroepiandrosterone sulphate}} ({{DHEA-S}}) {{DHEA}} that is converted by the placenta into estrogens{{#pmid:15635500\|PMID15635500}}{{#pmid:10503722\|PMID10503722}} Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.

	* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.		* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.

Z8600021: /* Placental Estrogen */

2019-06-01T06:37:48Z

Placental Estrogen

← Older revision		Revision as of 17:37, 1 Haziran 2019
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	\|-		\|-
	\| [[File:Human-adrenal gland 01.jpg\|300px]]		\| [[File:Human-adrenal gland 01.jpg\|300px]]
	\| Fetal adrenal cortex produces dehydroepiandrosterone sulfate ({{DHEA-S}}) that is converted by the placenta into estrogens{{#pmid:15635500\|PMID15635500}}{{#pmid:10503722\|PMID10503722}} Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.		\| Fetal adrenal cortex produces dehydroepiandrosterone sulfate ({{DHEA-S}}) {{DHEA}} that is converted by the placenta into estrogens{{#pmid:15635500\|PMID15635500}}{{#pmid:10503722\|PMID10503722}} Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.

	* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.		* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.

Z8600021: /* Placental Estrogen */

2019-06-01T06:37:30Z

Placental Estrogen

← Older revision		Revision as of 17:37, 1 Haziran 2019
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	\|-		\|-
	\| [[File:Human-adrenal gland 01.jpg\|300px]]		\| [[File:Human-adrenal gland 01.jpg\|300px]]
	\| Fetal adrenal cortex produces dehydroepiandrosterone sulfate (DHEA-S) that is converted by the placenta into estrogens{{#pmid:15635500\|PMID15635500}}{{#pmid:10503722\|PMID10503722}} Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.		\| Fetal adrenal cortex produces dehydroepiandrosterone sulfate ({{DHEA-S}}) that is converted by the placenta into estrogens{{#pmid:15635500\|PMID15635500}}{{#pmid:10503722\|PMID10503722}} Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.

	* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.		* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.

Z8600021 at 06:36, 1 Haziran 2019

2019-06-01T06:36:35Z

← Older revision		Revision as of 17:36, 1 Haziran 2019
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	===Placenta Vasculature - MRI and CT===		===Placenta Vasculature - MRI and CT===
	Term placenta viewed from the fetal side.~~<ref><pubmed>~~20226038~~</pubmed>~~\| ~~[http://www.biomedcentral.com/1472-6793/10/3 BMC Physiol.]</ref>~~		Term placenta viewed from the fetal side.{{#pmid:20226038\|PMID20226038}}
	{\|		{\|
	\|-		\|-
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	\|-		\|-
	\| [[File:Human-adrenal gland 01.jpg\|300px]]		\| [[File:Human-adrenal gland 01.jpg\|300px]]
	\| Fetal adrenal cortex produces dehydroepiandrosterone sulfate (DHEA-S) that is converted by the placenta into estrogens~~<ref name=~~PMID15635500~~><pubmed>15635500</pubmed></ref><ref name=~~PMID10503722~~><pubmed>10503722</pubmed></ref>~~ Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.		\| Fetal adrenal cortex produces dehydroepiandrosterone sulfate (DHEA-S) that is converted by the placenta into estrogens{{#pmid:15635500\|PMID15635500}}{{#pmid:10503722\|PMID10503722}} Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.

	* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.		* Uterus - stimulates growth of the myometrium, antagonizes the myometrial-suppressing activity of progesterone.
	* Mammary Gland - stimulates mammary gland ductal and alveolar growth.		* Mammary Gland - stimulates mammary gland ductal and alveolar growth.
	* Fetal Ovary - stimulates development of female fetal ovary.~~<ref name=~~PMID19876841~~><pubmed>19876841</pubmed></ref>~~		* Fetal Ovary - stimulates development of female fetal ovary.{{#pmid:19876841\|PMID19876841}}

	A second role for fetal adrenal DHEA-S is possible regulation of the effects of glucocorticoids on the developing brain.~~<ref name=~~PMID26485665~~><pubmed>26485665</pubmed></ref>~~		A second role for fetal adrenal DHEA-S is possible regulation of the effects of glucocorticoids on the developing brain.{{#pmid:26485665\|PMID26485665}}
	\|}		\|}

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	The placenta and fetal tissues may deal with drugs differently from adult target tissues. In particular, drugs are "cleared", metabolised and excreted, at a different rate in both the fetus and in newborn infants. In general there is a much lower rate of clearance.		The placenta and fetal tissues may deal with drugs differently from adult target tissues. In particular, drugs are "cleared", metabolised and excreted, at a different rate in both the fetus and in newborn infants. In general there is a much lower rate of clearance.

	~~<pubmed>~~21766440~~</pubmed>~~		{{#pmid:21766440}}
	~~<pubmed>~~21789231~~</pubmed>~~
	~~<pubmed>~~19732616~~</pubmed>\| [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2767264 PMC2767264]~~		{{#pmid:21789231}}

			{{#pmid:19732616}}

Z8600021: /* Placental Estrogen */

2017-06-04T11:51:23Z

Placental Estrogen

← Older revision		Revision as of 22:51, 4 Haziran 2017
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	===Placental Estrogen===		===Placental Estrogen===
	{\| [[File:Human-adrenal gland 01.jpg\|300px]]		{\|
			\|-
			\| [[File:Human-adrenal gland 01.jpg\|300px]]
	\| Fetal adrenal cortex produces dehydroepiandrosterone sulfate (DHEA-S) that is converted by the placenta into estrogens<ref name=PMID15635500><pubmed>15635500</pubmed></ref><ref name=PMID10503722><pubmed>10503722</pubmed></ref> Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.		\| Fetal adrenal cortex produces dehydroepiandrosterone sulfate (DHEA-S) that is converted by the placenta into estrogens<ref name=PMID15635500><pubmed>15635500</pubmed></ref><ref name=PMID10503722><pubmed>10503722</pubmed></ref> Placental estrogen, mainly estriol, suppresses gonadotropin secretion from the maternal pituitary gland. Maternal estrogen levels are often a useful indicator of fetal well being.

Z8600021: /* Endocrine */

2017-06-04T11:46:44Z

Endocrine

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 * Relaxin
 * Steroid Hormones - progesterone (maintains pregnancy), estrogens (fetal adrenal/placenta)
 ==Placental Metabolism==

Z8600021 at 04:03, 6 Haziran 2016

2016-06-06T04:03:24Z

← Older revision		Revision as of 15:03, 6 Haziran 2016
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	Increase in placental weight by birth [[Gestational Age\|gestational age]] {{GA}}.		Increase in placental weight by birth [[Gestational Age\|gestational age]] {{GA}}.

	[[File:Placental mean weight graph01.jpg\|~~500px~~]]		[[File:Placental mean weight graph01.jpg\|600px]]

	===Placenta Vasculature - MRI and CT===		===Placenta Vasculature - MRI and CT===

Z8600021 at 04:03, 6 Haziran 2016

2016-06-06T04:03:11Z

← Older revision		Revision as of 15:03, 6 Haziran 2016
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	Increase in placental weight by birth [[Gestational Age\|gestational age]] {{GA}}.		Increase in placental weight by birth [[Gestational Age\|gestational age]] {{GA}}.

	[[File:Placental mean weight graph01.jpg\|~~600px~~]]		[[File:Placental mean weight graph01.jpg\|500px]]

	===Placenta Vasculature - MRI and CT===		===Placenta Vasculature - MRI and CT===