نتایج جستجو برای: orofacial pain

تعداد نتایج: 248104  

2016
Daniel Humberto Pozza José Manuel Castro-Lopes Fani Lourença Neto António Avelino

BACKGROUND & OBJECTIVES There are many difficulties in generating and testing orofacial pain in animal models. Thus, only a few and limited models that mimic the human condition are available. The aim of the present research was to develop a new model of trigeminal pain by using a spared nerve injury (SNI) surgical approach in the rat face (SNI-face). METHODS Under anaesthesia, a small incisi...

Journal: :Pharmacology, biochemistry, and behavior 2011
H F Miranda V Noriega F Sierralta J C Prieto

Animal models are used to research the mechanisms of pain and to mimic human pain. The purpose of this study was to determine the degree of interaction between dexketoprofen and dexibuprofen, by isobolographic analysis using the formalin orofacial assay in mice. This assay presents two-phase time course: an early short-lasting, phase I, starting immediately after the formalin injection producin...

Journal: :Journal of dental education 2014
Aurelio A Alonso Masahiro Heima Lisa A Lang Sorin T Teich

Orofacial pain (OFP) is a group of symptoms affecting a significant portion of the population; inadequate diagnosis and management of these symptoms present a potential detrimental effect on the public's health. It has been suggested that dental schools must prepare their graduates to deal with these problems rather than relying on their participation in continuing education courses after gradu...

2017
Michaela Prochazkova Bradford Hall Minghan Hu Tracy Okine Jennifer Reukauf BK Binukumar Niranjana D Amin Eva Roque Harish C Pant Ashok B Kulkarni

Abstract Cdk5 is a key neuronal kinase necessary for proper brain development, which has recently been implicated in modulating nociception. Conditional deletion of Cdk5 in pain-sensing neurons attenuates pain responses to heat in both the periphery and orofacial regions. Cdk5 activity is regulated by binding to the activators p35 and p39, both of which possess a cyclin box. Our previous examin...

2014
Ethan M. Anderson Alan C. Jenkins Robert M. Caudle John K. Neubert

BACKGROUND Transient receptor potential (TRP) cation channels are involved in the perception of hot and cold pain and are targets for pain relief in humans. We hypothesized that agonists of TRPV1 and TRPM8/TRPA1, capsaicin and menthol, would alter nociceptive behaviors in the rat, but their opposite effects on temperature detection would attenuate one another if combined. METHODS Rats were te...

2018
Z. Alshelh K.K. Marciszewski R. Akhter F. Di Pietro E.P. Mills E.R. Vickers C.C. Peck G.M. Murray L.A. Henderson

It has been proposed that pain competes with other attention-demanding stimuli for cognitive resources, and many chronic pain patients display significant attention and mental flexibility deficits. These alterations may result from disruptions in the functioning of the default mode network (DMN) which plays a critical role in attention, memory, prospection and self-processing, and recent invest...

Journal: :Journal of orofacial pain 2013
Alain Woda

A n unusual event recently occurred in the field of chronic orofacial pain. A new entity has been established through a few research papers and meetings of experts. Different specialists have known for some time that surgery and other traumatic events may injure the trigeminal nerve and provoke symptoms. Nerve damage may occur during Caldwell-Luc intervention, orthognathic mandibular advancemen...

Journal: :Frontiers in neuroanatomy 2016
Dylan J. H. A. Henssen Erkan Kurt Tamas Kozicz Robert van Dongen Ronald H. M. A. Bartels Anne-Marie van Cappellen van Walsum

Orofacial pain in patients relies on the anatomical pathways that conduct nociceptive information, originating from the periphery towards the trigeminal sensory nucleus complex (TSNC) and finally, to the thalami and the somatosensorical cortical regions. The anatomy and function of the so-called trigeminothalamic tracts have been investigated before. In these animal-based studies from the previ...

2016
Merlijn W. de Vries Corine Visscher Suzanne Delwel Jenny T. van der Steen Marjoleine J. C. Pieper Erik J. A. Scherder Wilco P. Achterberg Frank Lobbezoo

Objectives. The aim of this study was to establish the reliability of the "chewing" subscale of the OPS-NVI, a novel tool designed to estimate presence and severity of orofacial pain in nonverbal patients. Methods. The OPS-NVI consists of 16 items for observed behavior, classified into four categories and a subjective estimate of pain. Two observers used the OPS-NVI for 237 video clips of peopl...

2016
Kadriye DEMİRKAYA Özlem Martı AKGÜN Buğra ŞENEL Zeynep ÖNCEL TORUN Melik SEYREK Enza LACİVİTA Marcello LEOPOLDO Ahmet DOĞRUL

OBJECTIVE To investigate the antinociceptive effects of pharmacological activation of 5-HT7 receptors on orofacial pain in mice. MATERIAL AND METHODS Nociception was evaluated by using an orofacial formalin test in male Balb-C mice. Selective 5-HT7 receptor agonists, LP 44 and LP 211 (1, 5, and 10 mg/kg), were given intraperitoneally 30 min prior to a formalin injection. A bolus of 10 µl of 4...

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