Hot Flash Model
Hot Flash Model - Related Videos
10:32
Thermal Diffusivity and the Laser Flash Method
0 Views •
2023
Source: Elise S.D. Buki, Danielle N. Beatty, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT The laser flash method (LFA) is a technique used to measure thermal diffusivity, a material specific property. Thermal diffusivity (α) is the ratio of how much heat is conducted relative to how much heat is stored in a material. It is related to thermal conductivity (), how much heat is transferred through a material due to a temperature...
10:13
Working with Hot and Cold Sources
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2023
Source: Robert M. Rioux & Suprita Jharimune, Pennsylvania State University, University Park, PA Working with extreme temperatures, both high and low, is an integral part of many laboratory operations. For many, mentioning a laboratory instantly evokes the mental picture of a Bunsen burner. Bunsen burners and hot plates are used extensively in small and large operations in research laboratories and industries, thus making it necessary for all users to be aware of their safe handling...
09:17
Hot Wire Anemometry
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2023
Source: Ricardo Mejia-Alvarez and Hussam Hikmat Jabbar, Department of Mechanical Engineering, Michigan State University, East Lansing, MI Hot-wire anemometers have a very short time-response, which makes them ideal to measure rapidly fluctuating phenomena such as turbulent flows. The purpose of this experiment is to demonstrate the use of hot-wire anemometry.
28:32
Flash Freezing and Cryosectioning E12.5 Mouse Brain
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Cited by 6 •
2007
Demonstrated in this video are the techniques for flash freezing and sectioning embryonic brain tissue from mouse. Useful tips for using the cryostat are given, including troubleshooting methods that can be used while cutting to ensure that the resultant tissues sections are free of cracks and other distortions.
11:35
Flash Photolysis of Caged Compounds in the Cilia of Olfactory Sensory Neurons
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Cited by 8 •
2011
Photolysis of caged compounds allows the production of rapid and localized increases in the concentration of various physiologically active compounds. Here, we show how to obtain patch-clamp recordings combined with photolysis of caged cAMP or caged Ca for the study of olfactory transduction in dissociated mouse olfactory sensory neurons.
FAQs
Estrogen withdrawal can disrupt hypothalamic thermoregulatory circuits and narrow the thermoneutral zone, the range in which the body does not need strong heat-gain or heat-loss responses. With this reduced margin, relatively small changes in thermal regulation may activate sympathetic heat-loss pathways, producing responses that resemble menopausal hot flashes.
Kisspeptin, neurokinin B, and dynorphin are examined as interconnected signaling components within hypothalamic circuits affected by estrogen withdrawal. Their altered activity provides a mechanistic link between reproductive hormone changes and thermoregulatory disruption. Studying these pathways helps researchers identify how neural signaling may contribute to the onset of heat-loss responses.
Sympathetic activation connects hypothalamic neural changes with measurable peripheral events, including skin vasodilation and sweating. This relationship allows investigators to examine hot flashes as coordinated brain and body responses rather than as isolated changes in skin temperature. Comparing hypothalamic activity with vascular or sweating responses can clarify how central signals produce visible physiological effects.
Researchers can assess several linked outcomes, including sudden warmth, skin vasodilation, sweating, and broader disruption of thermoregulation. The model also supports examination of hypothalamic activity and peripheral vascular responses. Together, these measurements help determine whether a hormonal or neural manipulation changes both the central regulatory process and its physiological expression.
Potential treatments can be evaluated by testing whether they reduce the thermoregulatory and peripheral responses associated with estrogen withdrawal. Investigators may examine changes in hypothalamic signaling, sympathetic heat-loss activity, vasodilation, or sweating. This approach connects treatment effects to specific mechanisms and helps distinguish broad symptom reduction from modulation of the underlying neural circuitry.
The model gives neuroscience researchers a way to connect reproductive aging and hormonal change with altered hypothalamic function. It supports investigation of how the brain regulates body temperature when estrogen withdrawal affects thermoregulatory circuits. Findings can therefore contribute to a broader understanding of interactions among endocrine state, neural activity, and peripheral vascular control.