Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 30 for “"preoptic area"”.
-
The Role of the Preoptic Area in Social Interaction in Zebrafish
… is a network of conserved, interconnected brain areas believed to regulate social behaviour across vertebrate taxa. While the role of the SDMN in complex social behaviours is relatively well understood, we know comparatively little about the role of the SDMN in simple grouping and responses to …
-
Thermosensitive Characteristics of Preoptic Area Neurons in the New Zealand White Rabbit, Oryctolagus Cuniculus
Made available in DSpace on 2014-12-14T13:39:37Z (GMT). No. of bitstreams: 1 7616185.pdf: 3078385 bytes, checksum: 635195762727e57c449cf840fe356138 (MD5) Previous issue date: 1976
-
ΜΗΧΑΝΙΣΜΟΙ ΠΟΥ ΕΛΕΓΧΟΥΝ ΤΗΝ ΑΡΡΕΝΩΠΟΤΗΤΑ (ΠΕΙΡΑΜΑΤΙΚΗ ΜΕΛΕΤΗ ΣΕ ΔΥΟ ΣΤΕΛΕΧΗ ΠΟΝΤΙΚΩΝ)
… METABOLISM OF TESTOSTERONE IN THE HYPOTHALAMUS PREOPTIC AREA OF THESE TWO STRAINS. TESTOSTERONE IS TAKEN UP BY ALL TISSUES STUDIED IN BOTH STRAINS OF MICE. MOREOVER, IT IS SHOWN THAT TESTOSTERONE IS TAKEN UP BY LIMITED CAPACITY UPTAKE SYSTEMS IN CYTOPLASM AND NUCLEUS, WHICH REPRESENT CYTOPLASMIC …
-
The Effects of Hypobaric Pressure on Thermoregulation in The Unrestrained New Zealand White Rabbit, Oryctolagus Cuniculus
… white rabbits were used in this research. The preoptic area of the brain was heated and cooled at these ambient temperatures while monitoring metabolism, ear pinna temperature, back temperature, preoptic temperature, breathing rate and heart rate.
-
Effects of Environmental Temperature on Sleep and Waking in Normal Rats and Rats With Basal Forebrain Damage
Damage to the basal forebrain (preoptic area and surrounding structures) causes hyposomnia and impairs body temperature regulation. Normal sleep is sensitive to thermal stress--animals spend the most time asleep at thermoneutral temperatures, and amounts of sleep decline in the heat and in the …
-
Mapping the substrate for brain stimulation reward : new approaches to an old problem
… were the arcuate nucleus, ventral tegmental area (VTA), central gray, pedunculopontine area (PPTg), parabrachial nucleus, and locus coeruleus. Among the forebrain structures showing a greater density of labeled neurons ipsilateral to the stimulating electrode were the septum, bed nucleus of …
-
Variation in postpartum maternal care programs the development of neuroendocrine and mesolimbic dopamine pathways in female offspring
… for maternal behavior such as the medial preoptic area of the hypothalamus. The first series of experiments within this thesis demonstrates that these neuroendocrine differences in ERalpha-immunoreactivity and mRNA emerge in offspring during the postnatal period (postnatal days 0-21). …
-
Social predispositions and underlying neural mechanisms in chicks (Gallus gallus domesticus)
… study, we found an involvement of septum and preoptic area of the hypothalamus in the perception of this predisposed animate motion cues. Septum is an evolutionarily well-conserved part of the limbic system. Together with preoptic area, they are key nodes of the social decision-making network …
-
Activation of Novel Secretoneurin Circuits in Ovulating Zebrafish
… this antibody, activation of SNa neurons in the preoptic area (POA) was investigated as well as SNa action on Lh cells in the pituitary following SNa intraperitoneal injection. In the preoptic area, magnocellular neurons immunoreactive for SNa were progressively activated within the periovulatory …
-
The Effects of Progesterone on Extracellular Serotonin Levels in Rat Hypothalamus
… (VMN), midbrain central grey (MCG) and medical preoptic area (POA) using microdialysis. Rats primed with estradiol benzoate (5 μg) were anesthetized with choral hydrate (400 mg/kg, i.p.). Samples were collected at 20 minute intervals. Once a stable serotonin baseline was obtained, rats were …
-
A Preoptic Neurocircuit that Regulates Blood Glucose Homeostasis
The preoptic area (POA) is the core thermoregulatory center of all known endothermic species and balances heat generation and cooling in response to environmental stimuli. This delicate balance is executed via a brain-body exchange of sensory information and thermoregulatory output that is …
-
Opioid induction of Fos in the female rat brain : modulation by ovarian hormones
… was analyzed in the lateral septum, medial preoptic area, ventromedial hypothalamus, medial amygdala, and mesencephalic central gray. The present study found that Fos immunoreactivity was induced differentially by the opioid agonists within the different brain regions, and the hormones …
-
NUCLEAR PROGESTIN RECEPTOR REGULATES FERTILITY AND SPAWNING IN FEMALE CICHLID ASTATOTILAPIA BURTONI
… progestin upregulates ptgfr mRNA in the preoptic area (POA) of the brain. To test whether progestin regulates prostaglandin sensitivity and reproductive behaviors, we developed a CRISPR/Cas9 progestin receptor (Pgr) mutant. Pgr-mutant females are infertile with large ovaries and reduced …
-
Opiate Regulation of Lordosis: Neurochemical Evaluation of the Role of Opiate-Serotonergic Interactions
… of behavior by progesterone. The medial preoptic area (POA) was found to be important in the actions of naltrexone. The role of serotonergic systems in the opiate regulation of lordosis was examined. Lesions of hypothalamic serotonergic terminals blocked the inhibition of behavior by …
-
Estrogen Signaling in the Ventromedial Hypothalamus Modulates Adipose Tissue Metabolic Adaptation
… ERαvlVMH-originated projections to the medial preoptic area (MPOA), dorsal raphe nucleus (DRN), and substantia nigra (SNR). Interestingly, transsynaptic retrograde tracing further demonstrated that these brain regions send projections to inguinal white adipose tissue (iWAT), suggesting …
-
The role of the GABAergic system in the production of ultrasonic vocalization in rats /
… agonist, into die anterior hypothalamic/preoptic area (AH/POA) rehably induces vocalization similar to naturally emitted ultrasonic calls. It has also been shown that carbachol has extensive inhibitory effects on neuronal firing in the same area. This result impUes that the inhibitory …
-
Maternal Behavior in the Rat: Neuroendocrine and Neuroanatomical Substrates
<p>A pathway connecting the preoptic region and the ventral midbrain regulates the performance of maternal behavior by female rats. There Is also evidence that the facilitatory action of estrogen on maternal behavior is mediated via estrogen target cells In the medial preoptic region. Neither the …
-
The neurobiology of central dopamine and progesterone in the reproductive cycle of the ring dove (Streptopelia risoria)
… contact with PR-fr-containing cells in the preoptic region, which may enable dopamine activation of the progesterone receptor, via the Dl receptor. A collaborative study with the University of Hiroshima, demonstrated increased progesterone concentrations in the diencephalon of male brooding …
-
Interactions between the cholinergic and dopaminergic system during the production of ultrasonic vocalizations in rats
… that terminates in the anterior hypothalamic-preoptic area (AH-MPO) and lateral septum (LS). The other group of USVs contains 50-kHz USVs, characterized by high peak frequency, ranging from 39 to 90-kHz, short duration ranging from 10-90 ms, and varying frequency and complex sonographic …
Page 1 of 2