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Articles 1 - 8 of 8
Full-Text Articles in Physiology
Bdnf Contributes To Angiotensin Ii-Mediated Reductions In Peak Voltage-Gated K+ Current In Cultured Cath.A Cells., Bryan K. Becker, Han-Jun Wang, Changhai Tian, Irving H. Zucker
Bdnf Contributes To Angiotensin Ii-Mediated Reductions In Peak Voltage-Gated K+ Current In Cultured Cath.A Cells., Bryan K. Becker, Han-Jun Wang, Changhai Tian, Irving H. Zucker
Journal Articles: Cellular & Integrative Physiology
Increased central angiotensin II (Ang II) levels contribute to sympathoexcitation in cardiovascular disease states such as chronic heart failure and hypertension. One mechanism by which Ang II increases neuronal excitability is through a decrease in voltage-gated, rapidly inactivating K(+) current (IA); however, little is known about how Ang II signaling results in reduced IA. Brain-derived neurotrophic factor (BDNF) has also been demonstrated to decrease IA and has signaling components common to Ang II. Therefore, we hypothesized that Ang II-mediated suppression of voltage-gated K(+) currents is due, in part, to BDNF signaling. Differentiated CATH.a, catecholaminergic cell line treated with BDNF for …
Steroid Receptor Isoform Expression In Drosophila Nociceptor Neurons Is Required For Normal Dendritic Arbor And Sensitivity, Aidan L. Mcparland, Taylor L. Follansbee, Gwendolyn D. Vesenka, Alexandra E. Panaitiu, Geoffrey K. Ganter
Steroid Receptor Isoform Expression In Drosophila Nociceptor Neurons Is Required For Normal Dendritic Arbor And Sensitivity, Aidan L. Mcparland, Taylor L. Follansbee, Gwendolyn D. Vesenka, Alexandra E. Panaitiu, Geoffrey K. Ganter
Biology Student Publications
Steroid hormones organize many aspects of development, including that of the nervous system. Steroids also play neuromodulatory and other activational roles, including regulation of sensitivity to painful stimuli in mammals. In Drosophila, ecdysteroids are the only steroid hormones, and therefore the fly represents a simplified model system in which to explore mechanisms of steroid neuromodulation of nociception. In this report, we present evidence that ecdysteroids, acting through two isoforms of their nuclear ecdysone receptor (EcR), modulate sensitivity to noxious thermal and mechanical stimuli in the fly larva. We show that EcRA and EcRB1 are expressed by third instar larvae in …
Relevance Of The Carotid Body Chemoreflex In The Progression Of Heart Failure., David C. Andrade, Claudia Lucero, Camilo Toledo, Carlos Madrid, Noah J. Marcus, Harold D. Schultz, Rodrigo Del Rio
Relevance Of The Carotid Body Chemoreflex In The Progression Of Heart Failure., David C. Andrade, Claudia Lucero, Camilo Toledo, Carlos Madrid, Noah J. Marcus, Harold D. Schultz, Rodrigo Del Rio
Journal Articles: Cellular & Integrative Physiology
Chronic heart failure (CHF) is a global health problem affecting millions of people. Autonomic dysfunction and disordered breathing patterns are commonly observed in patients with CHF, and both are strongly related to poor prognosis and high mortality risk. Tonic activation of carotid body (CB) chemoreceptors contributes to sympathoexcitation and disordered breathing patterns in experimental models of CHF. Recent studies show that ablation of the CB chemoreceptors improves autonomic function and breathing control in CHF and improves survival. These exciting findings indicate that alterations in CB function are critical to the progression of CHF. Therefore, better understanding of the physiology of …
Editorial: Carotid Body: A New Target For Rescuing Neural Control Of Cardiorespiratory Balance In Disease., Rodrigo Del Rio, Rodrigo Iturriaga, Harold D. Schultz
Editorial: Carotid Body: A New Target For Rescuing Neural Control Of Cardiorespiratory Balance In Disease., Rodrigo Del Rio, Rodrigo Iturriaga, Harold D. Schultz
Journal Articles: Cellular & Integrative Physiology
No abstract provided.
Manipulation Of The Microbiome And Its Impact On Functional Recovery Following Ischemic Stroke, Michal Jandzinski
Manipulation Of The Microbiome And Its Impact On Functional Recovery Following Ischemic Stroke, Michal Jandzinski
Honors Scholar Theses
Each year, nearly 800,000 individuals residing in the United States will have a stroke. Of these, about 130,000 cases will prove fatal while many of the survivors will be forced to live with disability for the remainder of their lives. Out of all strokes over 87% are ischemic strokes. The widespread incidence of this debilitating condition costs the United States an estimated $36.5 billion dollars every single year. Despite this, clinicians are armed with very little to combat the disease. Recent research developments have brought about the rise in awareness about the importance of the microbiome, the various gut flora …
Exercise Ameliorates High Fat Diet Induced Cardiac Dysfunction By Increasing Interleukin 10., Varun Kesherwani, Vishalakshi Chavali, Bryan T. Hackfort, Suresh C. Tyagi, Paras K. Mishra
Exercise Ameliorates High Fat Diet Induced Cardiac Dysfunction By Increasing Interleukin 10., Varun Kesherwani, Vishalakshi Chavali, Bryan T. Hackfort, Suresh C. Tyagi, Paras K. Mishra
Journal Articles: Cellular & Integrative Physiology
Increasing evidence suggests that a sedentary lifestyle and a high fat diet (HFD) leads to cardiomyopathy. Moderate exercise ameliorates cardiac dysfunction, however underlying molecular mechanisms are poorly understood. Increased inflammation due to induction of pro-inflammatory cytokine such as tumor necrosis factor-alpha (TNF-α) and attenuation of anti-inflammatory cytokine such as interleukin 10 (IL-10) contributes to cardiac dysfunction in obese and diabetics. We hypothesized that exercise training ameliorates HFD- induced cardiac dysfunction by mitigating obesity and inflammation through upregulation of IL-10 and downregulation of TNF-α. To test this hypothesis, 8 week old, female C57BL/6J mice were fed with HFD and exercised (swimming …
Induction Of Autophagy Markers Is Associated With Attenuation Of Mir-133a In Diabetic Heart Failure Patients Undergoing Mechanical Unloading., Shyam Sundar Nandi, Michael J. Duryee, Hamid R. Shahshahan, Geoffrey M. Thiele, Daniel R. Anderson, Paras K. Mishra
Induction Of Autophagy Markers Is Associated With Attenuation Of Mir-133a In Diabetic Heart Failure Patients Undergoing Mechanical Unloading., Shyam Sundar Nandi, Michael J. Duryee, Hamid R. Shahshahan, Geoffrey M. Thiele, Daniel R. Anderson, Paras K. Mishra
Journal Articles: Cellular & Integrative Physiology
Autophagy is ubiquitous in all forms of heart failure and cardioprotective miR-133a is attenuated in human heart failure. Previous reports from heart failure patients undergoing left ventricular assist device (LVAD) implantation demonstrated that autophagy is upregulated in the LV of the failing human heart. Studies in the murine model show that diabetes downregulates miR-133a. However, the role of miR-133a in the regulation of autophagy in diabetic hearts is unclear. We tested the hypothesis that diabetes exacerbates cardiac autophagy by inhibiting miR-133a in heart failure patients undergoing LVAD implantation. The miRNA assay was performed on the LV of 15 diabetic (D) …
Bracing Of The Trunk And Neck Has A Differential Effect On Head Control During Gait, S. Morrison, D. M. Russell, K. Kelleran, M. L. Walker
Bracing Of The Trunk And Neck Has A Differential Effect On Head Control During Gait, S. Morrison, D. M. Russell, K. Kelleran, M. L. Walker
Rehabilitation Sciences Faculty Publications
During gait, the trunk and neck are believed to play an important role in dissipating the transmission of forces from the ground to the head. This attenuation process is important to ensure head control is maintained. The aim of the present study was to assess the impact of externally restricting the motion of the trunk and/or neck segments on acceleration patterns of the upper body and head and related trunk muscle activity. Twelve healthy adults performed three walking trials on a flat, straight 65-m walkway, under four different bracing conditions: 1) control-no brace; 2) neck-braced; 3) trunk-braced; and 4) neck-trunk …