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Topic: Preoptic area

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	Neuronal Inputs from the Hypothalamus and Brain Stem to the Medial Preoptic Area of the Ram: Neurochemical Correlates ...
		of inputs to the rostral preoptic area in the ewe.
		nucleus to GnRH neurons in the preoptic area [26].
		NPY neurons to the rostral preoptic area because this is one
	www.biolreprod.org /cgi/content/full/68/4/1119 (6373 words)

	[No title]
		Lesions to the medial preoptic area of the hypothalamus are known to severely impair the full expression of sexual and parenting behaviors (http://nawrot.psych.ndsu.nodak.edu).
		The lack of gratification from sexual activity may be due to the fact that the medial preoptic area receives dopamine from the area ventralis of Tsai, serving as the "reward" for the brain for engaging in sexual activity.
		An MRI session revealed a lack of activity in the medial preoptic area of the hypothalamus, which is responsible for sexual activity, sexual motivation, and parenting behaviors.
	www.humboldt.edu /~morgan/thal_s04.htm (3305 words)

	Multimodal Influence of Estrogen upon Gonadotropin-Releasing Hormone Neurons -- Herbison 19 (3): 302 -- Endocrine ...
		The NPY innervation of the hypothalamus and preoptic
		or release in the preoptic area and median eminence (304, 305,
		the preoptic area and median eminence in proestrous rats is
	edrv.endojournals.org /cgi/content/full/19/3/302 (11763 words)

	Discussion (Site not responding. Last check: 2007-10-15)
		Also, it remains to be determined whether cortical projections to periLC areas that densely contain LC dendrites (ventromedial and caudodorsal to the LC 42, 65) are directed to the dendrites of noradrenergic neurons or to non-noradrenergic cells and dendrites also present in these areas.
		By means of anterograde tracing with PHAL and CTb, we confirmed that the preoptic area dorsal to the supraoptic nucleus substantially innervates the nuclear core of the LC itself.
		This area does not correspond to the ventral tegmental area previously reported to project to the LC using anterograde tracing methods 28,64.
	sommeil.univ-lyon1.fr /articles/luppi/neurosci_95/discussion.html (7687 words)

	Progesterone Receptor, Estrogen Receptor {alpha}, and the Type II Glucocorticoid Receptor Are Coexpressed in the Same ...
		preoptic area and arcuate nucleus of E+P- (Fig.
		the GR neuronal population, 79% in the preoptic area and 66%
		The distribution of progesterone receptor immunoreactivity and mRNA in the preoptic area and hypothalamus of the ewe: upregulation of progesterone receptor mRNA in the mediobasal hypothalamus by oestrogen.
	www.biolreprod.org /cgi/content/full/67/5/1605 (4931 words)

	SRO: Abstract Print Format
		Dopamine and serotonin were decreased both in the medial preoptic area and in the cortex.
		Dendritic spine counts in the medial preoptic area and the motor cortex were increased after total sleep deprivation.
		Localized changes in noradrenaline levels at the medial preoptic area suggest its involvement in sleep genesis and maintenance, though its possible contribution to other functions like thermoregulation and reproduction cannot be ruled out.
	www.sro.org /1999/ramesh/49/abprintr.htm (240 words)

	My personal website (Site not responding. Last check: 2007-10-15)
		Morphological characterization of thermosensitive and temperature insensitive neurons in the preoptic area of the rat hypothalamus
		on the cellular properties of thermally classified neurons in the ventromedial preoptic area of the rat hypothalamus.
		on the firing rate activity of thermosensitive and temperature insensitive neurons in the ventromedial preoptic area of the rat hypothalamus.
	jdgri2.people.wm.edu (572 words)

	The morphometry of astrocytes in the rostral preoptic area exhibits a diurnal rhythm on proestrus: relationship to the ... (Site not responding. Last check: 2007-10-15)
		The morphometry of astrocytes in the rostral preoptic area exhibits a diurnal rhythm on proestrus: relationship to the luteinizing hormone surge and effects of age.
		Therefore, the purpose of this study was to focus on the rostral preoptic area where GnRH cell bodies reside.
		In contrast, in middle-aged rats astrocyte surface area was significantly less than in young rats and did not change during the day.
	www.arclab.org /medlineupdates/abstract_12488355.html (261 words)

	Excitatory amino acid receptors in the dorsomedial hypothalamus mediate prostaglandin-evoked thermogenesis in brown ...
		dorsal hypothalamic area adjacent to the mamillothalamic tracts
		area of the hypothalamus attenuates fever (16, 25).
		elicited from the preoptic area of the hypothalamus (1, 13);
	ajpregu.physiology.org /cgi/content/full/286/2/R320 (3710 words)

	RedNova News - Science - Variation in aromatase activity in the medial preoptic area and plasma progesterone is ... (Site not responding. Last check: 2007-10-15)
		Variation in aromatase activity in the medial preoptic area and plasma progesterone is associated with the onset of paternal behavior
		The distribution of aromatase in the mammalian brain is limited primarily to hypothalamic and limbic brain areas [8, 10, 13], including the medial preoptic area (MPOA), bed nucleus of the stria terminalis (BNST), ventromedial hypothalamus (VMH), and medial amygdala (MA).
		Aromatase activity means for the medial preoptic area (MPOA), bed nucleus of the stria terminalis (BNST), ventromedial hypothalamus (VMH), and hippocampus (HPC) correspond to the left axis.
	www.rednova.com /news/display?id=17663 (6004 words)

	Dr. Elaine Hull
		We have shown that dopamine is released in the medial preoptic area (MPOA) as soon as a male rat encounters a receptive female; release is further increased during copulation.
		This brain area is essential for male sexual behavior in all vertebrate species that have been studied, from fish through humans.
		Dominguez, J.M, Muschamp, J.W., Schmich, J.M., and Hull, E.M. Glutamate-evoked release in the medial preoptic area is mediated by nitric oxide: Implications for male rat sexual behavior.
	www.psy.fsu.edu /faculty/hull.dp.html (576 words)

	All atwitter
		Riters guessed that the medial preoptic area is involved in motivation, and that it interacts with other regions of the brain that produce the actual song.
		The medial preoptic area of a male European starling is flooded with opioids in the spring, but Riters can't say for certain which comes first-- the chemical or the song.
		And, she says, this area of the brain mingles with the regions of the brain that actually produce song.
	whyfiles.org /shorties/114bird_song (965 words)

	Aging and long-term ovariectomy alter the cytoarchitecture of the hypothalamic-preoptic area of the C57BL/6J mouse. (Site not responding. Last check: 2007-10-15)
		Coronal sections from midportions of the preoptic area (POA), suprachiasmatic nucleus (SCN) and arcuate nucleus (ARC) were examined by quantitative light microscopy in young (5 month) and old (18-20 months) intact mice and in old mice which had been ovariectomized at 6 months of age.
		Total perikaryal area decreased only in ARC (10%; p less than 0.05), while area of perikaryal nuclei did not change in any region.
		Area of nucleoli increased (13%; p less than 0.005) in all three regions of old intact and old ovariectomized mice.
	www.arclab.org /medlineupdates/abstract_2628780.html (290 words)

	Annual Review of Sex Research: Role of the medial preoptic area/anterior hypothalamus in the control of masculine ... (Site not responding. Last check: 2007-10-15)
		The earliest study implicating the medial preoptic area/anterior hypothalamus (MPOA/AH) in the control of masculine reproductive behavior dates back to 1941, when Brookhart and Dey (1941) reported that sexual behavior was disrupted in male guinea pigs following the placement of lesions in this part of the diencephalon.
		These lesions, which were located near the base of the brain between the optic chiasm and the pituitary stalk, caused no sign of testicular atrophy, thereby raising the possibility that pituitary gonadotrophin secretion and sexual behavior are controlled by different brain circuits.
		Although the lesion-induced deficits in masculine copulatory behavior are similar in every species studied, the most detailed hormonal and behavioral analyses of preoptic lesion effects have been carried out using rats.
	www.findarticles.com /p/articles/mi_qa3778/is_199701/ai_n8757017 (1146 words)

	Differential ICP responses elicited by electrical stimulation of medial preoptic area -- Sato and Christ 278 (3): 964 ...
		Stimulation of medial preoptic area of hypothalamus in the rat elicits increase in intracavernous pressure.
		Effect of the nitric oxide level in the medial preoptic area on male copulatory behavior in rats.
		Dopamine release in the medial preoptic area during male copulatory behavior in rats.
	ajpheart.physiology.org /cgi/content/full/278/3/H964 (3456 words)

	Joseph S. Lonstein
		We are currently focusing how release of the neurotransmitter dopamine within the preoptic area, a site important for some maternal behaviors, influences how mothers respond to their pups.
		This is being determined by measuring dopaminergic activity within the preoptic area during different stages of pregnancy and lactation, examining the dopaminergic projections to the preoptic area with neuroanatomical tracing methods, and pharmacologically manipulating dopaminergic activity in the preoptic area of virgin and lactating rats and observing changes in their maternal behavior.
		A second area of research in the lab is devoted to the understanding of how emotional behaviors are regulated during lactation.
	www.ns.msu.edu /neurosci/people/faculty/lonstein.htm (424 words)

	Evidence that GABAergic Neurons in the Preoptic Area of the Rat Brain Are Targets of ... (Site not responding. Last check: 2007-10-15)
		The distribution of monoaminergic cells and fibers in a periventricular preoptic nucleus involved in the control of gonadotropin release: immunohistochemical evidence for a dopaminergic sexual dimorphism.
		Medial preoptic microimplants of the antiestrogen, keoxifene, affect luteinizing hormone-releasing hormone mRNA levels, median eminence luteinizing hormone-releasing hormone concentrations and luteinizing hormone release in ovariectomized, estrogen-treated rats.
		Sex differences in the distribution and projections of testosterone target neurons in the medial preoptic area and the bed nucleus of the stria terminalis of rats.
	ehp.niehs.nih.gov /members/2002/suppl-3/369-376hays/hays-full.html (7055 words)

	Internal Body States - 10c (Site not responding. Last check: 2007-10-15)
		the skin and the preoptic area are both cold.
		the skin is cold and the preoptic area is at normal temperature.
		Mammals with damage to their preoptic area regulate their body temperature the same way as __________________.
	www.psy.dmu.ac.uk /mcq/kalat10c.html (485 words)

	Role of the Lateral Preoptic Area in Sleep-Related Erectile Mechanisms and Sleep Generation in the Rat -- Schmidt et ...
		Role of the Lateral Preoptic Area in Sleep-Related Erectile Mechanisms and Sleep Generation in the Rat -- Schmidt et al.
		Role of the Lateral Preoptic Area in Sleep-Related Erectile Mechanisms and Sleep Generation in the Rat
		area is implicated in both sleep generation and copulatory mechanisms,
	www.jneurosci.org /cgi/content/abstract/20/17/6640 (330 words)

	Editorial I: Central noradrenergic neurones and the mechanism of general anaesthesia -- Hirota and Kushikata 87 (6): ...
		release from the medial preoptic area in rats.
		from the prefrontal cortex and preoptic area in rats.
		5 Osaka T, Matsumura H. Noradrenergic inputs to sleep-related neurons in the preoptic area from the locus coeruleus and the ventrolateral medulla in the rat.
	bja.oxfordjournals.org /cgi/content/full/87/6/811 (1173 words)

	A neuroanatomical and molecular analysis of medial preoptic area regulation of maternal behavior in the rat.
		A neuroanatomical and molecular analysis of medial preoptic area regulation of maternal behavior in the rat.
		These results suggest that c-Fos and/or Fos B activity within these areas is important for the occurrence of maternal behavior.
		The potential role of the MPOA and vBST in regulating maternal behavior along with the ability of each region to modify the function within NAs and LSi neurons is discussed, as is the role of each of these latter regions in regulating maternal behavior.
	escholarship.bc.edu /dissertations/AAI3048296 (304 words)

	The Morphometry of Astrocytes in the Rostral Preoptic Area Exhibits a Diurnal Rhythm on Proestrus: Relationship to the ...
		The Morphometry of Astrocytes in the Rostral Preoptic Area Exhibits a Diurnal Rhythm on Proestrus: Relationship to the Luteinizing Hormone Surge and Effects of Age -- Cashion et al.
		rostral preoptic area (rPOA) of the hypothalamus and exhibiting
		Wise PM 1982 Norepinephrine and dopamine activity in microdissected brain areas of the middle-aged and young rat on proestrus.
	endo.endojournals.org /cgi/content/full/144/1/274 (4286 words)

	Cold-induced thermogenesis mediated by GABA in the preoptic area of anesthetized rats -- Osaka 287 (2): R306 -- AJP - ...
		ACB, accumbens; BST, bed nucleus of the stria terminalis; HDB, horizontal limb of diagonal band of Broca; LPO, lateral preoptic area; MPO, medial preoptic area; MS, medial septum; OC, optic chiasma; ON, optic nerve; VDB, vertical limb of diagonal band of Broca.
		-aminobutyric acid from the medial preoptic area measured by microdialysis in the anaesthetised rat.
		Neurotransmitter specificity of cells and fibers in the medial preoptic nucleus: an immunohistochemical study in the rat.
	ajpregu.physiology.org /cgi/content/full/287/2/R306 (3580 words)

	Hedgehog signalling maintains the optic stalk-retinal interface through the regulation of Vax gene activity -- ...
		Zebrafish Vax genes are expressed in the optic stalk and the preoptic area.
		descendents in the preoptic area and optic stalks (Fig.
		in the preoptic area, whereas expression in the optic stalks
	dev.biologists.org /cgi/content/full/130/5/955 (9123 words)

	Michael Selmanoff, Ph.D
		GABAergic neurons situated in the rostral medial preoptic nucleus, the sexually dimorphic nucleus of the preoptic area and the tuberoinfundibular GABAergic neurons are under most active study.
		Grattan DR, Rocca MS, Sagrillo CA, McCarthy MM, Selmanoff M 1996 Antiandrogen microimplants into the rostral medial preoptic area decrease g -aminobutyric acidergic neuronal activity and increase luteinizing hormone secretion in the intact male rat.
		Sagrillo CA, Selmanoff M 1997 Castration decreases single cell levels of mRNA encoding glutamic acid decarboxylase in the diagonal band of Broca and the sexually dimorphic nucleus of the preoptic area.
	csr.umaryland.edu /faculty/selmanoff.htm (350 words)

	Sexually Dimorphic Effects of Testosterone on Preoptic Area Calcitonin Gene-Related Peptide mRNA Expression Depend upon ...
		The medial preoptic area of the rodent represents one of the
		Raisman G, Field PM 1973 Sexual dimorphism in the neuropil of the preoptic area of the rat and its dependence on neonatal androgen.
		Herbison AE 1992 Identification of a sexually dimorphic neural population immunoreactive for calcitonin gene-related peptide (CGRP) in the rat medial preoptic area.
	endo.endojournals.org /cgi/content/full/142/8/3397 (5395 words)

	Anne M. Etgen Ph.D., Selected References
		A combination of in vitro and in vivo approaches are employed to examine hormonal modulation of norepinephrine, GABA and glutamate release in the hypothalamus and preoptic area as well as the mechanisms by which these neurotransmitters act in the hypothalamus to regulate female reproductive behavior.
		Insulin-like growth factor-1 regulation of alpha(1)-adrenergic receptor signaling is estradiol dependent in the preoptic area and hypothalamus of female rats.
		Petitti N. Mediation of norepinephrine-stimulated cyclic AMP accumulation by adrenergic receptors in hypothalamic and preoptic area slices: effects of estradiol.
	www.aecom.yu.edu /home/Psychiatry/BasicResearchLabs/etgen (1658 words)

	John D. Buntin - Biological Sciences - UWM
		We are currently using this information to identify promising brain areas to investigate as potential sites of prolactin action in altering specific behavior patterns and changes in neuroendocrine function.
		These studies have revealed that the ventromedial nucleus of the hypothalamus and the preoptic area are potent sites of prolactin action in promoting foraging behavior but neither site is essential.
		In contrast, the preoptic area does appear to be essential for the expression of prolactin-induced parental regurgitation feeding behavior.
	www.uwm.edu /Dept/Biology/Docs/Faculty/buntin.html (650 words)

	Dopamine Activates Noradrenergic Receptors in the Preoptic Area -- Cornil et al. 22 (21): 9320 -- Journal of ...
		Balthazart J, Absil P (1997) Identification of catecholaminergic inputs to and outputs from aromatase-containing brain areas of the Japanese quail by tract tracing combined with tyrosine hydroxylase immunocytochemistry.
		Cornil CA, Balthazart J, Seutin V (2001) Electrophysiological and neurochemical characterization of neurons in the Japanese quail preoptic area.
		Panzica GC, Viglietti-Panzica C, Balthazart J (1996) The sexually dimorphic medial preoptic nucleus of quail: a key brain area mediating steroid action on the male sexual behavior.
	www.jneurosci.org /cgi/content/full/22/21/9320 (7940 words)

	Ingestion Of Afterbirth Appears To Promote Maternal Behavior In Mammals (Site not responding. Last check: 2007-10-15)
		"Increased opioid activity in the ventral tegmental area, a motivation area of the brain, facilitates the onset of maternal behavior.
		Increased opioid activity in the medial preoptic area, however, a reproductive-behavior area of the brain, disrupts maternal behavior," Kristal explains.
		"We think that, in particular, POEF optimizes the onset of maternal behavior by enhancing the facilitating effect of opioids in the ventral tegmental area and attenuating the disruptive effects of opioids in the medial preoptic area.
	www.sciencedaily.com /releases/2005/02/050213133350.htm (901 words)

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