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Ionic basis of neuronal CO²/H+ chemosensitivity in the pulmonate snail, Helix aspersa.
Hypercapnia -- Regulation. ; Carbon dioxide -- Physiological effect. ; Carbon dioxide in the body. ; Brown garden snail -- Respiration. ; Potassium channels.
After more than 150 years of studying the respiratory effects of hypercapnia, the intrinsic neuronal mechanism by which carbon dioxide (CO²) stimulates electrical excitability of respiratory neurons, and hence respiratory drive, is still...
Dartmouth Dissertations

The functional roles of the rostral pons in the control of respiration in mammals.
Respiration -- Regulation. ; Cats -- Respiration. ; Rats -- Respiration. ; Pons Varolii -- Physiology.
Dartmouth Dissertations

Respiratory-related hypoglossal activities in decerebrate cats.
Hypoglossal nerve. ; Airway (Medicine). ; Respiration.
Dartmouth Dissertations

Neurohypophysial function during acute stimulation in rats: role of vasopressin in regulation of blood pressure and oxytocin release.
Blood pressure. ; Vasopressin. ; Neurophysiology. ; Rats as laboratory animals.
Dartmouth Dissertations

CO2 chemoreceptor function in the pulmonate snail.
Helix (Mollusks) -- Respiration. ; Chemoreceptors. ; Carbonic anhydrase.
Dartmouth Dissertations

The effects of thyrotropin releasing hormone in the retrotrapezoid nucleus.
Thyrotropin releasing factor -- Physiological effect. ; Pons Varolii -- Physiology. ; Medulla oblongata -- Physiology. ; Respiration -- Regulation. ; Rats -- Respiration.
The respiratory control network (RC) is made up nuclei dispersed throughout the pons and medulla oblongata and receives information from various sources that alter respiratory output. My studies have been focussed on one of these nuclei that play a...
Dartmouth Dissertations

Modulation of the hypercapnic and hypoxic ventilatory responses by the medullary raphe region in conscious rats.
Respiration -- Regulation. ; Medulla oblongata -- Physiology. ; Hypercapnia. ; Anoxemia. ; Rats -- Respiration.
Serotonergic and non-serotonergic neurons located in the medullary raphe region of the mammalian brainstem are involved in numerous physiological processes. Concerning respiration, neurons in this region have been found to be chemosensitive, i.e.,...
Dartmouth Dissertations

The neuromodulatory influences of vasopressin on fear conditioning and spatial learning.
Vasopressin -- Physiological effect.
Dartmouth Dissertations

A frequency analysis of the tidal volume controller in CO2 regulation in decerebrate cats with peripheral denervations.
Respiration. Carbon dioxide in the body.
Dartmouth Dissertations

$Influence of the infracerebellar nucleus on respiratory activity.$
Influence of the infracerebellar nucleus on respiratory activity.
Respiration -- Regulation. ; Cerebellar nuclei.
Dartmouth Dissertations

Diaphragmatic electromyogram and airflow responses to imperceptible mechanical loads in conscious humans
Respiration -- Regulation. ; Pressure breathing.
Dartmouth Dissertations

Steady state NMR imaging of cerebral blood volume as an index of chronic hypoxia induced angiogenesis.
Neovascularization. Brain -- Blood-vessels -- Magnetic resonance imaging. Blood volume -- Measurement. Cerebral circulation -- Measurement. Anoxemia. Blood Volume Determination -- methods.
Angiogenesis is part of the natural defense mechanism in brain against hypoxia and ischemia. Animal models and methods for the non-invasive investigation of cerebral angiogenesis are needed. This thesis addresses the hypothesis that steady state,...
Dartmouth Dissertations

A study of neutral amino acid and drug transport in slices from human and rabbit placentae.
Placenta; Maternal-fetal exchange.
Dartmouth Dissertations

The mechanism of action for angiotensin-1-7 in the rostral ventrolateral medulla in the modulation of cardiovascular sympathetic nerve activity / by Mark S. Bilodeau
Elevated sympathetic discharge from the CNS is an underlying pathogenic mechanism in neurogenic hypertension and an exacerbating factor in chronic heart failure (CHF). Current treatment of these diseases focuses on attenuation of the downstream...
Dartmouth Dissertations

Serotonin signaling in the nucleus tractus solitarius modulates the larybgeal chemoreflex : implications for sudden infant death syndrome / by William T. Donnelly
Sudden infant death syndrome (SIDS) occurs when a sleeping infant experiences a challenge to cardiorespiratory homeostasis which it fails to overcome. Analyses of brain tissue from SIDS cases from around the world consistently show abnormalities in...
Dartmouth Dissertations

Analysis of the respiratory movements of the human vocal cords.
Vocal cords. ; Respiration.
Dartmouth Dissertations

Bethanechol and central respiratory control.
Bethanechol. ; Anesthetics.
Dartmouth Dissertations

A study of neutral amino acid and drug transport.
Placenta. ; Maternal-fetal exchange.
Dartmouth Dissertations

Acoustic measurement of upper airway movement and inspiratory airflow modeling.
Acoustic imaging. ; Sound -- Measurement. ; Airway (Medicine) -- Mathematical models. ; Air flow -- Mathematical models. ; Larynx -- Physiology -- Mathematical models.
Dartmouth Dissertations

Effect of increased hemoglobin oxygen affinity on oxygen transport and its regulation in the rat.
Hemoglobin. ; Oxygen -- Physiological transport. ; Rats.
Dartmouth Dissertations

The role of the micturition reflex in the control of respiration.
Respiration -- Regulation. ; Urination. ; Reflexes. ; Spinal nerves.
Dartmouth Dissertations

Respiratory regulation and central depressant drugs.
Drugs -- Physiological effect. ; Respiratory organs.
Dartmouth Dissertations

Carbon dioxide: hydrogen ion sensory mechanism of the carotid body.
Carbon dioxide -- Physiological effect. ; Carotid body.
Dartmouth Dissertations

The effects of acute exposure to hypoxia on physiological tremor in humans.
Anoxemia. ; Tremor.
Dartmouth Dissertations

The effects of CO2, hypoxia, and asphyxia on ventilation in unanesthetized cats.
Respiration. ; Cats -- Physiology.
Dartmouth Dissertations

The role of medullary raphé serotonergic neurons in central chemoreception during sleep and wakefulness in newborn piglets: relevance to the sudden infant death syndrome.
Serotoninergic mechanisms. ; Brain stem -- Physiology. ; Neurons -- Physiology. ; Respiration -- Regulation. ; Carbon dioxide -- Physiological effect. ; Chemoreceptors -- Physiology. ; Sudden infant death syndrome -- Pathogenesis
Dartmouth Dissertations

Respiratory control and mechanics in wakefulness and non-rapid eye movement sleep in normal humans.
Respiration -- Regulation. ; Respiration. ; Sleep -- Physiological aspects.
Dartmouth Dissertations

Arginine vasopressin and pulmonary hypertension induced by hypoxi.
Pulmonary hypertension. ; Vasopressin. ; Anoxemia. ; Oxygen -- Physiological effect.
Dartmouth Dissertations

Optical spectroscopy guided by structural and functional MRI for breast cancer imaging.
Optical spectroscopy. Magnetic resonance imaging. Breast -- Cancer -- Imaging.
Magnetic Resonance (MR)-guided Diffuse Optical Imaging is an emerging technique to improve breast cancer imaging. This modality combines the high sensitivity of breast MR with images of tissue physiology, including blood content, oxygen saturation,...
Dartmouth Dissertations

Altered serotonin signaling impairs cardiorespiratory control in early postnatal development : relevance for the SIDS / by Karlene T. Barrett.
Serotonin -- Receptors.;""Serotoninergic mechanisms -- Sudden infant death syndrome -- Pathogenesis -- Respiration -- Regulation -- Medulla oblongata -- Physiology.""
Dartmouth Dissertations

The use of computer models to capture, understand and control dynamic brain processes.
Brain -- Physiology -- Mathematical models. Brain stem -- Effect of chemicals on. Basal ganglia -- Physiology.
Understanding how the brain works remains one of the toughest problems in science, despite the progress in scientific technology available for its study. The difficulty lies in the fact that the brain is a dynamic system, while the body of facts...
Dartmouth Dissertations

Helix aspersa NHE1: cDNA cloning and characterization.
Sodium cotransport systems. Chemoreceptors. Respiration -- Regulation -- Genetic aspects. Brown garden snail -- Respiration. Carbon dioxide in the body. Arginine. Antisense DNA -- Genetics.
Studies of central CO 2 chemosensors are hampered by the complexity of mammalian central nervous systems. Our laboratory developed the pulmonate snail, Helix aspersa , as a relatively simple alternative to mammalian models. A question concerning...
Dartmouth Dissertations

The role of K⁺ channels and redox potential in the strain-dependent response to hypoxia.
Anoxemia -- Molecular aspects. Potassium channels. Oxidation-reduction reaction. Cell Hypoxia -- physiology.
Two strains of mice were identified that possess differing cardiopulmonary responses to hypoxia. CF 1 mice acclimated poorly to chronic hypoxia as indicated by right ventricular hypertrophy, decreased PO 2 , increased [Hb], and increased mortality....
Dartmouth Dissertations

Role of melanin concentrating hormone (MCH) containing neurons in the lateral hypothalamus in cardiorespiratory control and energy balance / by Ningjing Li.
The lateral hypothalamus is a brain region involved in the regulation of feeding, glucose homeostasis, sleep/wake cycle, and autonomic nervous system (ANS). Melanin concentrating hormone (MCH) containing neurons, located in the lateral...
Dartmouth Dissertations

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