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Corticotropin AND Spinal Cord

Xun Helen Hou, Minsuk Hyun, Julian Taranda, Kee Wui Huang, Emmalee Todd, Danielle Feng, Emily Atwater, Donyell Croney, Mark Lawrence Zeidel, Pavel Osten, Bernardo Luis Sabatini
Urine release (micturition) serves an essential physiological function as well as a critical role in social communication in many animals. Here, we show a combined effect of olfaction and social hierarchy on micturition patterns in adult male mice, confirming the existence of a micturition control center that integrates pro- and anti-micturition cues. Furthermore, we demonstrate that a cluster of neurons expressing corticotropin-releasing hormone (Crh) in the pontine micturition center (PMC) is electrophysiologically distinct from their Crh-negative neighbors and sends glutamatergic projections to the spinal cord...
September 22, 2016: Cell
Roger Negrete, María Salud García Gutiérrez, Jorge Manzanares, Rafael Maldonado
Joint pain is a major clinical problem mainly associated to osteoarthritis, and characterized by articular cartilage degradation resulting in a complex chronic pain state that includes nociceptive, emotional and cognitive manifestations. Memory impairment, depressive- and anxiety-like symptoms have been reported to be associated with chronic pain, leading to a decrease of life quality. In this study, we evaluated the involvement of the endogenous dynorphin/kappa opioid receptor (KOR) system on the nociceptive, emotional, cognitive, neurochemical and epigenetic manifestations of joint pain...
August 24, 2016: Neuropharmacology
T Matsuura, M Kawasaki, H Hashimoto, M Yoshimura, Y Motojima, R Saito, H Ueno, T Maruyama, T Ishikura, K Sabanai, T Mori, H Ohnishi, T Onaka, A Sakai, Y Ueta
Oxytocin (OXT)-containing neurosecretory cells in the parvocellular divisions of the paraventricular nucleus (PVN), which project to the medulla and spinal cord, are involved in various physiological functions, such as sensory modulation and autonomic processes. In the present study, we examined OXT expression in the hypothalamo-spinal pathway, as well as the hypothalamo-neurohypophysial system, which includes the magnocellular neurosecretory cells in the PVN and the supraoptic nucleus (SON), after s.c. injection of saline or formalin into the hindpaws of transgenic rats that express the OXT and monomeric red fluorescent protein 1 (mRFP1) fusion gene...
June 2016: Journal of Neuroendocrinology
Alice A Larson, Myra G Nunez, Casey L Kissel, Katalin J Kovács
Stress is antinociceptive in some models of pain, but enhances musculoskeletal nociceptive responses in mice and muscle pain in patients with fibromyalgia syndrome. To test the hypothesis that urocortins are stress hormones that are sufficient to enhance tactile and musculoskeletal hyperalgesia, von Frey fibre sensitivity and grip force after injection of corticotropin-releasing factor (CRF), urocortin I and urocortin II were measured in mice. Urocortin I (a CRF1 and CRF2 receptor ligand) produced hyperalgesia in both assays when injected intrathecally (i...
November 2015: European Journal of Neuroscience
Edmilson D Dos Santos Júnior, André V Da Silva, Kelly R T Da Silva, Carlos A S Haemmerle, Daniella S Batagello, Joelcimar M Da Silva, Leandro B Lima, Renata J Da Silva, Giovanne B Diniz, Luciane V Sita, Carol F Elias, Jackson C Bittencourt
The oculomotor accessory nucleus, often referred to as the Edinger-Westphal nucleus [EW], was first identified in the 17th century. Although its most well known function is the control of pupil diameter, some controversy has arisen regarding the exact location of these preganglionic neurons. Currently, the EW is thought to consist of two different parts. The first part [termed the preganglionic EW-EWpg], which controls lens accommodation, choroidal blood flow and pupillary constriction, primarily consists of cholinergic cells that project to the ciliary ganglion...
October 2015: Journal of Chemical Neuroanatomy
Hou-Bao Fan, Ting Zhang, Kai Sun, Su-Pei Song, Shou-Bin Cao, Hai-Long Zhang, Wen Shen
Corticotropin-releasing factor (CRF) serves as a neuromodulator in the hypothalamic-pituitary-adrenal axis, playing an essential role in depression, anxiety, and pain regulation. However, its biological role in bone cancer induced pain has not been investigated. In the present study, we aimed to elucidate the expression and distribution of CRF in spinal cord using a rodent model of bone cancer pain. Our study showed that implantation of Walker 256 mammary gland carcinoma cells into the tibia of rats significantly increased CRF expression in the spinal cord in a time-dependent manner...
December 2015: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Hui-Rong Liu, Xiao-Yi Fang, Huan-Gan Wu, Lu-Yi Wu, Jing Li, Zhi-Jun Weng, Xin-Xin Guo, Yu-Guang Li
AIM: To investigate the effect of electroacupuncture on corticotropin-releasing hormone (CRH) in the colon, spinal cord, and hypothalamus of rats with chronic visceral hypersensitivity. METHODS: A rat model of chronic visceral hypersensitivity was generated according to the internationally accepted method of colorectal balloon dilatation. In the 7(th) week after the procedure, rats were randomly divided into a model group (MG), electroacupuncture group (EA), and sham electroacupuncture group (S-EA)...
June 21, 2015: World Journal of Gastroenterology: WJG
Shao-jun Wang, Jiao-jiao Zhang, Hao-yan Yang, Fang Wang, Si-ting Li
BACKGROUND: The hypothalamus is an essential part of the brain that responds to a variety of signaling including stressful stimulations and acupuncture signals. It is also the key element of the hypothalamic-pituitary-adrenal cortex axis(HPAA). The effect of acupuncture is transmitted into the brain from the distance sensory receptor around the acupoints via peripheral nerves and body fluid. In vivo recording the activities of stress reaction neurons (SRNs, CRH-like neurons) in hypothalamic paraventricular nucleus (PVN) in response to the stimulations from different acupoints could therefore objectively reflect the acupuncture afferent effect...
2015: BMC Complementary and Alternative Medicine
Antonio Argiolas, Maria Rosaria Melis
Of the numerous neuropeptides identified in the central nervous system, only a few are involved in the control of sexual behaviour. Among these, the most studied are oxytocin, adrenocorticotropin, α-melanocyte stimulating hormone and opioid peptides. While opioid peptides inhibit sexual performance, the others facilitate sexual behaviour in most of the species studied so far (rats, mice, monkeys and humans). However, evidence for a sexual role of gonadotropin-releasing hormone, corticotropin releasing factor, neuropeptide Y, galanin and galanin-like peptide, cholecystokinin, substance P, vasoactive intestinal peptide, vasopressin, angiotensin II, hypocretins/orexins and VGF-derived peptides are also available...
September 2013: Progress in Neurobiology
Yun-Beom Sim, Soo-Hyun Park, Yu-Jung Kang, Jun-Sub Jung, Ohk-Hyun Ryu, Moon-Gi Choi, Seong-Soo Choi, Hong-Won Suh
The possible involvement of glucocorticoid system in interleukin-1β (IL-1β)-induced nociception and the blood glucose level was studied in ICR mice. In the first experiment, mice were treated intrathecally (i.t.) with IL-1β (100 pg). Corticotrophin releasing hormone (CRH) mRNA (hypothalamus) and c-Fos mRNA (pituitary gland, spinal cord, and the adrenal gland) levels were measured at 30, 60 and 120 min after IL-1β administration. We found that i.t. injection with IL-1β increased CRH mRNA level in the hypothalamus...
October 2013: Cytokine
Susan K Wood, Kile McFadden, Tagan Griffin, John H Wolfe, Stephen Zderic, Rita J Valentino
Barrington's nucleus, in the pons, regulates micturition through spinal projections to preganglionic parasympathetic neurons. The stress neuropeptide CRF is prominent in these projections and has an inhibitory influence. Social stress in rats causes urinary retention and abnormal urodynamics resembling those produced by partial bladder outlet obstruction (pBOO), and this is associated with CRF upregulation in Barrington's nucleus. Here, we examined the role of CRF in social stress- and pBOO-induced urodynamic dysfunction by assessing the ability of a CRF₁ receptor antagonist to alter these effects...
June 1, 2013: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
Ayaka Tanabe, Hiroshi Onimaru, Hiroshi Suzuki, Yoichi Takeyama, Ikuo Homma
Corticotropin-releasing factor (CRF) is a neuropeptide that mediates neuroendocrine, autonomic, and behavioral processes associated with the stress response. CRF-containing fibers and receptors are found in various regions of the central nervous system including the spinal cord. Here, we report excitatory effects of CRF on sympathetic preganglionic neurons in the intermediolateral cell column (IML) of in vitro spinal cord preparations from newborn rats. We also examine the receptor subtypes that are involved in the CRF effects...
November 2, 2012: Autonomic Neuroscience: Basic & Clinical
Andrzej T Slominski, Michal A Zmijewski, Cezary Skobowiat, Blazej Zbytek, Radomir M Slominski, Jeffery D Steketee
Skin, the body's largest organ, is strategically located at the interface with the external environment where it detects, integrates, and responds to a diverse range of stressors including solar radiation. It has already been established that the skin is an important peripheral neuro-endocrine-immune organ that is tightly networked to central regulatory systems. These capabilities contribute to the maintenance of peripheral homeostasis. Specifically, epidermal and dermal cells produce and respond to classical stress neurotransmitters, neuropeptides, and hormones...
2012: Advances in Anatomy, Embryology, and Cell Biology
Claudia Kühne, Oliver Puk, Jochen Graw, Martin Hrabě de Angelis, Günther Schütz, Wolfgang Wurst, Jan M Deussing
The corticotropin-releasing hormone (CRH) and its type 1 receptor (CRHR1) play a central role in coordinating the endocrine, autonomic, and behavioral responses to stress. A prerequisite to functionally dissect the complexity of the CRH/CRHR1 system is to unravel the identity of CRHR1-expressing neurons and their connectivities. Therefore, we used a knockin approach to genetically label CRHR1-expressing cells with a tau-lacZ (tZ) reporter gene. The distribution of neurons expressing β-galactosidase in the brain and the relative intensity of labeling is in full accordance with previously described Crhr1 mRNA expression...
October 1, 2012: Journal of Comparative Neurology
Kile McFadden, Tagan A Griffin, Valerie Levy, John H Wolfe, Rita J Valentino
The stress-related neuropeptide, corticotropin-releasing factor (CRF), is prominent in neurons of the pontine micturition center, Barrington's nucleus. These neurons co-innervate spinal preganglionic neurons that control the bladder, and locus coeruleus (LC) neurons that provide norepinephrine innervation throughout the brain. Adeno-associated viral (AAV) vector-mediated transfer of CRF cDNA was used to increase CRF expression in Barrington's nucleus neurons and investigate the impact of a gain of function in Barrington's nucleus spinal and LC projections...
November 2012: European Journal of Neuroscience
Samira Fargali, Masato Sadahiro, Cheng Jiang, Amy L Frick, Tricia Indall, Valeria Cogliani, Jelle Welagen, Wei-Jye Lin, Stephen R Salton
Members of the neurotrophin family, including nerve growth factor, brain-derived neurotrophic factor, neurotrophin-3, and neurotrophin-4/5, and other neurotrophic growth factors such as ciliary neurotrophic factor and artemin, regulate peripheral and central nervous system development and function. A subset of the neurotrophin-dependent pathways in the hypothalamus, brainstem, and spinal cord, and those that project via the sympathetic nervous system to peripheral metabolic tissues including brown and white adipose tissue, muscle and liver, regulate feeding, energy storage, and energy expenditure...
November 2012: Journal of Molecular Neuroscience: MN
Tomoko Fujii, Hiroshi Onimaru, Ikuo Homma
The amygdala is an important higher regulatory center of the autonomic nervous system, involved in respiratory and cardiovascular control, and it also plays a role in the formation of emotions. Corticotropin-releasing factor (CRF) is a neuropeptide involved in stress responses. We have examined the effects of CRF on the spontaneous burst activity in the piriform-amygdala complex of rat brain preparations in vitro. Limbic-brainstem-spinal cord preparations of 0- to 1-day-old Wistar rats were isolated under deep ether anesthesia, and were superperfused in a modified Krebs solution...
October 2011: Neuroscience Research
Jackie D Wood
This review aims to examine current basic and clinical concepts, the results of which are expanding our understanding of visceral hypersensitivity and functional abdominal pain of intestinal origin in relation to the enteric nervous system (ENS), spinal sensory neurons and enteric mast cells. Advances in this sphere are translating to improved insight into chronic functional abdominal and pelvic pain syndromes in general.
2011: Current Pharmaceutical Design
Eun Hyun Kim, Da Hye Ryu, Sejin Hwang
Corticotropin-releasing factor (CRF) is a peptide involved in the activation of the hypothalamic-pituitary-adrenal (HPA) axis. CRF is distributed not only along the HPA axis but also throughout pain-relevant anatomical sites. CRF elicits potent antinociception at the three main levels of pain transmissions: namely, the brain, spinal cord, and peripheral sensory neurons. The widespread distribution of CRF receptors 1 and 2 in the brain offers several targets wherein CRF could alter pain, some of which may be independent of the HPA axis...
March 2011: Anatomy & Cell Biology
Leonardo C Welling, Eberval G Figueiredo
No abstract text is available yet for this article.
October 2010: World Neurosurgery
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