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https://www.readbyqxmd.com/read/28801514/bilateral-painful-tic-convulsif
#1
Valentina Fenech, Julian Cassar, Ludvic Zrinzo, Malcolm Vella
'Painful tic convulsif' (PTC) describes the coexistence of hemifacial spasm and trigeminal neuralgia. In this report, we describe a unique presentation of bilateral PTC in a man with bilateral hemifacial spasm and trigeminal neuralgia secondary to neurovascular conflict of all four cranial nerves. Following failed medical and radiofrequency therapy, microvascular decompression of three of the four involved nerves was performed, where the offending vessels were mobilised and Teflon used to prevent conflict recurrence...
August 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28799666/effect-of-resveratrol-on-c-fos-expression-of-rat-trigeminal-spinal-nucleus-caudalis-and-c1-dorsal-horn-neurons-following-mustard-oil-induced-acute-inflammation
#2
Yasuhiro Matsumoto, Kyouhei Komatsu, Yoshihito Shimazu, Shiori Takehana, Yumiko Syouji, Ayumu Kobayashi, Mamoru Takeda
The dietary constituent, resveratrol, was recently identified as a transient receptor potential ankyrin 1 (TRPA1) antagonist, voltage-dependent sodium ion (Na(+) ) channel, and cyclooxygenase-2 (COX-2) inhibitor. The aim of the present study was to investigate whether pretreatment with resveratrol attenuates acute inflammation-induced sensitization of nociceptive processing in rat spinal trigeminal nucleus caudalis (SpVc) and upper cervical (C1) dorsal horn neurons, via c-fos immunoreactivity. Mustard oil (MO), a TRPA1 channel agonist, was injected into the whisker pads of rats to induce inflammation...
August 11, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28798669/receptor-mechanisms-mediating-the-pro-nociceptive-action-of-hydrogen-sulfide-in-rat-trigeminal-neurons-and-meningeal-afferents
#3
Kseniya Koroleva, Alsu Mustafina, Aleksey Yakovlev, Anton Hermann, Rashid Giniatullin, Guzel Sitdikova
Hydrogen sulfide (H2S), a well-established member of the gasotransmitter family, is involved in a variety of physiological functions, including pro-nociceptive action in the sensory system. Although several reports have shown that H2S activates sensory neurons, the molecular targets of H2S action in trigeminal (TG) nociception, implicated in migraine, remains controversial. In this study, using suction electrode recordings, we investigate the effect of the H2S donor, sodium hydrosulfide (NaHS), on nociceptive firing in rat meningeal TG nerve fibers...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28797764/inflammatory-pain-assessment-in-the-arthritis-of-the-temporomandibular-joint-in-rats-a-comparison-between-two-phlogistic-agents
#4
Joana Cláudia Bezerra de Araújo, Delane Viana Gondim, André Luiz Cunha Cavalcante, Mario Roberto Pontes Lisboa, Gerly Anne de Castro Brito, Mariana Lima Vale
Temporomandibular joint (TMJ) disorders are a group of conditions that result in TMJ pain, which frequently limits basic daily activities. Experimental models that allow the study of the mechanisms underlying these inflammatory and pain conditions are of great clinical relevance. The aim of this study was to evaluate nociception, inflammation and participation of the macrophage/microglia cells in the arthritis of the TMJ induced by two phlogistic agents. 84 rats were divided into 2 groups: Zy, which received zymosan intra-articularly, or Cg, which received carrageenan intra-articularly...
August 7, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/28797041/repeat-low-level-blast-exposure-increases-transient-receptor-potential-vanilloid-1-trpv1-and-endothelin-1-et-1-expression-in-the-trigeminal-ganglion
#5
Elaine D Por, Melody L Sandoval, Chiquita Thomas-Benson, Teresa A Burke, Allison Doyle Brackley, Nathaniel A Jeske, Jeffery M Cleland, Brian J Lund
Blast-associated sensory and cognitive trauma sustained by military service members is an area of extensively studied research. Recent studies in our laboratory have revealed that low-level blast exposure increased expression of transient receptor potential vanilloid 1 (TRPV1) and endothelin-1 (ET-1), proteins well characterized for their role in mediating pain transmission, in the cornea. Determining the functional consequences of these alterations in protein expression is critical to understanding blast-related sensory trauma...
2017: PloS One
https://www.readbyqxmd.com/read/28794654/retrospective-study-to-identify-trigeminal-cervical-ocular-referred-pain-as-a-new-causative-entity-of-ocular-pain
#6
Scheffer Cg Tseng, Anny Ms Cheng, Yao Fu
PURPOSE: To determine the prevalence and clinical characteristics of trigeminal-cervical (TC) ocular referred pain. METHODS: A retrospective study of 1,680 patients seen during 2002-2010 was performed in an ocular surface specialty center to identify patients with or without TC pain defined as ocular pain with ipsilateral trigger points located at the occipital region. Patients with refractory TC pain despite topical anesthetics and conventional treatments received interventional injection to each trigger point...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28776544/quantitative-evaluation-of-pain-with-pain-index-extracted-from-electroencephalogram
#7
Jian-Xiong An, Yong Wang, Doris K Cope, John P Williams
BACKGROUND: The current pain assessment methods are strongly subjective and easily affected by outside influences, and there is an urgent need to develop a reliable objective and quantitative pain-monitoring indicator. The aim of this study was to evaluate the feasibility of using Pain index (Pi) to assess pain symptoms in pain patients. METHODS: Subjects were enrolled from patients seeking treatment at Pain Medicine Center of China Medical University Aviation General Hospital from October 2015 to December 2016, such as postherpetic neuralgia, spinal cord injury, femoral head necrosis, lumbar disc herniation, trigeminal neuralgia, complex regional pain syndrome, perineal pain, phantom limb pain, etc...
August 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28772087/selective-percutaneous-controlled-radiofrequency-thermocoagulation-of-the-gasserian-ganglion-to-control-facial-pain-due-to-medication-related-osteonecrosis-of-the-jaw
#8
Ayano Taniguchi, Keita Fukazawa, Toyoshi Hosokawa
BACKGROUND: Medication-related osteonecrosis of the jaw (MRONJ) is an important complication in patients treated with antiresorptive agents such as bisphosphonates and the receptor activator of nuclear factor κB ligand inhibitor (denosumab). Treatment of MRONJ is extremely difficult, which makes it a distressing long-term complication. OBJECTIVES: We report a case of intractable facial pain due to MRONJ that was successfully controlled with selective percutaneous controlled radiofrequency thermocoagulation of the Gasserian ganglion...
August 3, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28763886/-application-of-neuroendoscope-combined-with-minimal-access-for-elderly-patients-with-idiopathic-trigeminal-neuralgia-in-enhanced-recovery-after-surgery-of-microvascular-decompression
#9
C F Li, N Wu, H Z Wang, J F Zhang, G Q Wu, L Li
Objective: To explore the value of neuroendoscope and minimal-access in enhanced recovery after surgery of microvascular decompression (MVD) for treatment elderly patients with idiopathic trigeminal neuralgia (ITN). Methods: The clinical data of 62 elderly patients with ITN who undergoing neuroendoscope-assisted minimal-access microvascular decompression were analyzed retrospectively, including operative data and follow-up results. Results: In 62 cases, the effective rate was 96.8%, with 88.7% complete cure and 8...
July 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28762108/trigeminal-neuropathy-associated-with-an-enlarging-arachnoid-cyst-in-meckel-s-cave-case-report-management-strategy-and-review-of-the-literature
#10
Mark G Bigder, Adel Helmi, Anthony M Kaufmann
We describe a rare case and novel management strategy of painful trigeminal neuropathy caused by an arachnoid cyst confined to Meckel's cave. A 57-year-old female presented with several years of progressive trigeminal pain and signs of trigeminal deafferentation, including sensory loss, corneal anesthesia and mastication muscle atrophy. Medical treatment with carbamazepine provided partial and temporary pain control. Surgical treatment was eventually performed by aspiration of the arachnoid cyst through the foramen ovale using a percutaneous approach...
July 31, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28761433/mild-closed-head-traumatic-brain-injury-induced-changes-in-monoamine-neurotransmitters-in-the-trigeminal-subnuclei-of-a-rat-model-mechanisms-underlying-orofacial-allodynias-and-headache
#11
Golam Mustafa, Jiamei Hou, Rachel Nelson, Shigeharu Tsuda, Mansura Jahan, Naweed S Mohammad, Joseph V Watts, Floyd J Thompson, Prodip Bose
Our recent findings have demonstrated that rodent models of closed head traumatic brain injury exhibit comprehensive evidence of progressive and enduring orofacial allodynias, a hypersensitive pain response induced by non-painful stimulation. These allodynias, tested using thermal hyperalgesia, correlated with changes in several known pain signaling receptors and molecules along the trigeminal pain pathway, especially in the trigeminal nucleus caudalis. This study focused to extend our previous work to investigate the changes in monoamine neurotransmitter immunoreactivity changes in spinal trigeminal nucleus oralis, pars interpolaris and nucleus tractus solitaries following mild to moderate closed head traumatic brain injury, which are related to tactile allodynia, touch-pressure sensitivity, and visceral pain...
June 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28751945/injured-anterior-superior-alveolar-nerve-endoscopically-resected-within-maxillary-sinus
#12
Amir H Dorafshar, A Lee Dellon, Eric Lee Wan, Sashank Reddy, Victor W Wong
Posttraumatic facial pain is due to an injured nerve, most often a branch of the trigeminal nerve. While surgical approaches to injuries of the supraorbital, supratrochlear, infraorbital, and inferior alveolar nerves have been reported, an injury to the anterior superior alveolar nerve (ASAN) has not been reported. An algorithm is proposed for the diagnosis of injury to the ASAN versus the infraorbital nerve itself. A case is reported in which pain relief was achieved by dividing the ASAN within the maxillary sinus, leaving the proximal end exposed within the sinus at the level of the orbital floor...
September 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28748271/the-emerging-role-of-gamma-knife-radiosurgery-in-the-management-of-glossopharyngeal-neuralgia
#13
REVIEW
Alfio Spina, Nicola Boari, Filippo Gagliardi, Michele Bailo, Carlotta Morselli, Sandro Iannaccone, Pietro Mortini
Glossopharyngeal neuralgia (GPN) represents a rare craniofacial disorder accounting for about 1% of all craniofacial pain syndromes. GPN shares several pathophysiologic and clinical features with the more common trigeminal neuralgia. Medical therapy and microvascular decompression, in case of vascular nerve compression, represented the mainstay of GPN management. Other ablative therapies have been reported to date; however, few data are available because of the rarity of this pain syndrome. Among the ablative procedures, gamma knife radiosurgery (GKRS) has been recently introduced in the management of GPN with good pain control and low complication rates...
July 26, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28741430/-express-orofacial-neuropathic-pain-induced-by-oxaliplatin-downregulation-of-kcnq2-channels-in-v2-trigeminal-ganglion-neurons-and-treatment-by-the-kcnq2-channel-potentiator-retigabine
#14
Jennifer Ling, Ferhat Erol, Viacheslav Viatchenko-Karpinski, Hirosato Kanda, Jianguo G Gu
No abstract text is available yet for this article.
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28738691/selective-cephalic-upregulation-of-p-erk-camkii-and-p-creb-in-response-to-glyceryl-trinitrate-infusion
#15
Roshni Ramachandran, Sara Hougaard Pedersen, Dipak Vasantrao Amrutkar, Steffen Petersen, Julie Mie Jacobsen, Anders Hay-Schmidt, Jes Olesen, Inger Jansen-Olesen
Background A common characteristic of migraine-inducing substances is that they cause headache and no pain in other areas of the body. Few studies have compared pain mechanisms in the trigeminal and spinal systems and, so far, no major differences have been noted. We compared signalling molecules in the trigeminal and spinothalamic system after infusion of the migraine-provoking substance glyceryltrinitrate. Method A catheter was placed in the femoral vein of rats and one week later glyceryltrinitrate 4 µg/kg/min was infused for 20 min...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28737061/functional-and-structural-alterations-in-the-migraine-cerebellum
#16
Jan Mehnert, Arne May
The cerebellum plays an important role in pain processing but its function in headache and specifically in migraine is not known. We therefore compared 54 migraineurs with pairwise matched healthy controls in a magnetic resonance imaging study on neuronal cerebellar activity in response to nociceptive trigeminal sensation and also investigated possible structural alterations. Headache frequency, disease duration, and the proximity to a migraine attack were used as co-factors. Migraine patients showed functional and structural alterations in the posterior part of the cerebellum, namely crus I and crus II...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28736339/tfos-dews-ii-pain-and-sensation-report
#17
REVIEW
Carlos Belmonte, Jason J Nichols, Stephanie M Cox, James A Brock, Carolyn G Begley, David A Bereiter, Darlene A Dartt, Anat Galor, Pedram Hamrah, Jason J Ivanusic, Deborah S Jacobs, Nancy A McNamara, Mark I Rosenblatt, Fiona Stapleton, James S Wolffsohn
Pain associated to mechanical and chemical irritation of the eye surface is mediated by trigeminal ganglia mechano- and polymodal nociceptor neurons while cold thermoreceptors detect wetness and reflexly maintain basal tear production and blinking rate. These neurons project into two regions of the trigeminal brain stem nuclear complex: ViVc, activated by changes in the moisture of the ocular surface and VcC1, mediating sensory-discriminative aspects of ocular pain and reflex blinking. ViVc ocular neurons project to brain regions that control lacrimation and spontaneous blinking and to the sensory thalamus...
May 4, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28731977/interventions-for-neuropathic-pain-an-overview-of-systematic-reviews
#18
REVIEW
Svjetlana Dosenovic, Antonia Jelicic Kadic, Maja Miljanovic, Marina Biocic, Krste Boric, Marija Cavar, Nikolina Markovina, Katarina Vucic, Livia Puljak
Numerous interventions for neuropathic pain (NeuP) are available, but its treatment remains unsatisfactory. We systematically summarized evidence from systematic reviews (SRs) of randomized controlled trials on interventions for NeuP. Five electronic databases were searched up to March 2015. Study quality was analyzed using A Measurement Tool to Assess Systematic Reviews. The most common interventions in 97 included SRs were pharmacologic (59%) and surgical (15%). The majority of analyzed SRs were of medium quality...
August 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28731960/perceived-pain-extent-is-not-associated-with-widespread-pressure-pain-sensitivity-clinical-features-related-disability-anxiety-or-depression-in-women-with-episodic-migraine
#19
Cesar Fernández-de-Las-Peñas, Deborah Falla, María Palacios-Ceña, Stella Fuensalidad-Novo, Jose L Arias-Buría, Alessandro Schneebeli, Lars Arend-Nielsen, Marco Barbero
OBJECTIVE: People with migraine present with varying pain extent and an expanded distribution of perceived pain may reflect central sensitization. The relationship between pain extent and clinical features, psychological outcomes, related-disability and pressure pain sensitivity in migraine has been poorly investigated. Our aim was to investigate whether the perceived pain extent, assessed from pain drawings, relates to measures of pressure pain sensitivity, clinical, psychological outcomes, and related-disability in women with episodic migraine...
July 20, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28728749/numb-chin-with-mandibular-pain-or-masticatory-weakness-as-indicator-for-systemic-malignancy-a-case-series-study
#20
Shin-Yu Lu, Shu-Hua Huang, Yen-Hao Chen
BACKGROUND/PURPOSE: Numb chin syndrome (NCS) is a critical sign of systemic malignancy; however it remains largely unknown by clinicians and dentists. The aim of this study was to investigate NCS that is more often associated with metastatic cancers than with benign diseases. METHODS: Sixteen patients with NCS were diagnosed and treated. The oral and radiographic manifestations were assessed. RESULTS: Four (25%) of 16 patients with NCS were affected by nonmalignant diseases (19% by medication-related osteonecrosis of the jaw and 6% by osteopetrosis); yet 12 (75%) patient conditions were caused by malignant metastasis, either in the mandible (62%) or intracranial invasion (13%)...
July 17, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
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