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https://www.readbyqxmd.com/read/28527055/cluster-headache-present-and-future-therapy
#1
Massimo Leone, Alessandro Giustiniani, Alberto Proietti Cecchini
Cluster headache is characterized by severe, unilateral headache attacks of orbital, supraorbital or temporal pain lasting 15-180 min accompanied by ipsilateral lacrimation, rhinorrhea and other cranial autonomic manifestations. Cluster headache attacks need fast-acting abortive agents because the pain peaks very quickly; sumatriptan injection is the gold standard acute treatment. First-line preventative drugs include verapamil and carbolithium. Other drugs demonstrated effective in open trials include topiramate, valproic acid, gabapentin and others...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28525981/combination-of-gabapentin-and-ramosetron-for-the-prevention-of-postoperative-nausea-and-vomiting-after-gynecologic-laparoscopic-surgery-a-prospective-randomized-comparative-study
#2
Kyung Mi Kim, Jin Huh, Soo Kyung Lee, Eun Young Park, Jung Min Lee, Hyo Ju Kim
BACKGROUND: As a drug originally introduced for its anticonvulsant effects, gabapentin has been recently shown to be effective in the treatment of nausea and vomiting in various clinical settings. This study compared the antiemetic efficacy of oral gabapentin, intravenous ramosetron and gabapentin plus ramosetron in patients receiving fentanyl-based patient-controlled analgesia after laparoscopic gynecologic surgery. METHODS: One hundred and thirty two patients undergoing laparoscopic gynecologic surgery under general anesthesia were allocated randomly into three groups: group G received 300 mg oral gabapentin 1 h before anesthesia, group R received 0...
May 19, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28524911/cancer-related-acute-pain-a-systematic-review-of-evidence-based-interventions-for-putting-evidence-into-practice
#3
Thiruppavai Sundaramurthi, Natalie Gallagher, Bethany Sterling
BACKGROUND: Identifying and implementing evidence-based interventions for cancer-related acute pain can decrease adverse effects and improve quality of life. 
. OBJECTIVES: This article presents current evidence supporting interventions to reduce cancer-related acute pain. 
. METHODS: PubMed and CINAHL® databases were searched to identify studies addressing interventions to manage acute pain in patients with cancer. The interventions are categorized according to the Putting Evidence Into Practice classification schema...
June 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28514943/sex-differences-underlying-orofacial-varicella-zoster-associated-pain-in-rats
#4
Crystal Stinson, Mohong Deng, Michael B Yee, Larry L Bellinger, Paul R Kinchington, Phillip R Kramer
BACKGROUND: Most people are initially infected with varicella zoster virus (VZV) at a young age and this infection results in chickenpox. VZV then becomes latent and reactivates later in life resulting in herpes zoster (HZ) or "shingles". Often VZV infects neurons of the trigeminal ganglia to cause ocular problems, orofacial disease and occasionally a chronic pain condition termed post-herpetic neuralgia (PHN). To date, no model has been developed to study orofacial pain related to varicella zoster...
May 17, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28508174/preclinical-comparison-of-mechanistically-different-antiseizure-antinociceptive-and-or-antidepressant-drugs-in-a-battery-of-rodent-models-of-nociceptive-and-neuropathic-pain
#5
Misty D Smith, Jose H Woodhead, Laura J Handy, Timothy H Pruess, Fabiola Vanegas, Erin Grussendorf, Joel Grussendorf, Karen White, Karolina K Bulaj, Reisa K Krumin, Megan Hunt, Karen S Wilcox
The series of experiments herein evaluated prototype drugs representing different mechanisms of antiseizure, antinociceptive or antidepressant action in a battery of preclinical pain models in adult male CF#1 mice (formalin, writhing, and tail flick) and Sprague Dawley rats partial sciatic nerve ligation (PSNL). In the formalin assay, phenytoin (PHT, 6 mg/kg), sodium valproate (VPA, 300 mg/kg), amitriptyline (AMI, 7.5 and 15 mg/kg), gabapentin (GBP, 30 and 70 mg/kg), tiagabine (TGB, 5 and 15 mg/kg), and acetominophen (APAP, 250 and 500 mg/kg) reduced both phases of the formalin response to ≤ 25% of vehicle-treated mice...
May 15, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28503628/visceral-hyperalgesia-when-to-consider-gabapentin-use-in-neonates-case-study-and-review
#6
Joseph Asaro, Christine A Robinson, Philip T Levy
Visceral hyperalgesia refers to increased pain sensation in response to gastrointestinal sensory stimulus. In neonates with neurological impairments, gabapentin has been successfully used as a treatment for visceral hyperalgesia in neonates. The authors describe a preterm infant with myelomeningocele and persistent neuropathic pain that manifested as irritability, hypertonicity, poor weight gain, and feeding intolerance. After exclusion of other etiologies, the diagnosis of visceral hyperalgesia was suspected and the infant was treated with gabapentin...
January 2017: Child Neurol Open
https://www.readbyqxmd.com/read/28496986/a-case-of-stiff-dog-syndrome-associated-with-anti-glutamic-acid-decarboxylase-antibodies
#7
Theresa E Pancotto, John H Rossmeisl
BACKGROUND: The stiff person syndrome (SPS) is a rare and debilitating autoimmune disorder with an unknown pathogenesis and variable clinical presentation that can present a diagnostic challenge. Although entities that clinically mimic stiff-person spectrum disorders (SPSD) have manifested in horses, they have not been reported in dogs. CASE PRESENTATION: We describe a 2-year-old beagle dog presented for progressive attacks of muscular rigidity and lordosis with superimposed spasms of the appendicular muscles triggered by tactile stimulation which resulted in marked gait impairment...
2017: Journal of Clinical Movement Disorders
https://www.readbyqxmd.com/read/28493425/law-enforcement-derived-data-on-gabapentin-diversion-and-misuse-2002-2015-diversion-rates-and-qualitative-research-findings
#8
Mance E Buttram, Steven P Kurtz, Richard C Dart, Zachary R Margolin
PURPOSE: Recent limited epidemiologic and case reports suggest that gabapentin is being misused, especially among prescription opioid misusers. However, no apparent studies have reported data from law enforcement on the diversion and misuse of gabapentin. METHODS: Case report data are drawn from a quarterly survey of prescription drug diversion completed by a national sample of law enforcement and regulatory agencies who engage in drug diversion investigations. Rates of gabapentin diversion per 100 000 population were calculated for each quarter from 2002 through 2015...
May 10, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28493329/risk-to-heroin-users-of-polydrug-use-of-pregabalin-or-gabapentin
#9
Abigail Lyndon, Suzanne Audrey, Claudia Wells, Erica S Burnell, Suzanne Ingle, Rob Hill, Matthew Hickman, Graeme Henderson
AIM: To examine the risk to heroin users of also using gabapentin or pregabalin (gabapentoids). DESIGN: Multi-disciplinary study: we (a) examined trends in drug-related deaths and gabapentoid prescription data in England and Wales to test for evidence that any increase in deaths mentioning gabapentin or pregabalin is associated with trends in gabapentoid prescribing and is concomitant with opioid use; (b) interviewed people with a history of heroin use about their polydrug use involving gabapentin and pregabalin; and (c) studied the respiratory depressant effects of pregabalin in the absence and presence of morphine in mice to determine whether concomitant exposure increased the degree of respiratory depression observed...
May 10, 2017: Addiction
https://www.readbyqxmd.com/read/28490916/the-cannabis-withdrawal-syndrome-current-insights
#10
REVIEW
Udo Bonnet, Ulrich W Preuss
The cannabis withdrawal syndrome (CWS) is a criterion of cannabis use disorders (CUDs) (Diagnostic and Statistical Manual of Mental Disorders - Fifth Edition) and cannabis dependence (International Classification of Diseases [ICD]-10). Several lines of evidence from animal and human studies indicate that cessation from long-term and regular cannabis use precipitates a specific withdrawal syndrome with mainly mood and behavioral symptoms of light to moderate intensity, which can usually be treated in an outpatient setting...
2017: Substance Abuse and Rehabilitation
https://www.readbyqxmd.com/read/28490336/characteristics-of-l-citrulline-transport-through-blood-brain-barrier-in-the-brain-capillary-endothelial-cell-line-tr-bbb-cells
#11
Kyeong-Eun Lee, Young-Sook Kang
BACKGROUND: L-Citrulline is a neutral amino acid and a major precursor of L-arginine in the nitric oxide (NO) cycle. Recently it has been reported that L-citrulline prevents neuronal cell death and protects cerebrovascular injury, therefore, L-citrulline may have a neuroprotective effect to improve cerebrovascular dysfunction. Therefore, we aimed to clarify the brain transport mechanism of L-citrulline through blood-brain barrier (BBB) using the conditionally immortalized rat brain capillary endothelial cell line (TR-BBB cells), as an in vitro model of the BBB...
May 10, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28483280/stacking-cyclodextrin-microchip-electrokinetic-chromatographic-determination-of-gabapentinoid-drugs-in-pharmaceutical-and-biological-matrices
#12
Abdallah M Zeid, Noritada Kaji, Jenny Jeehan M Nasr, Fathalla F Belal, Yoshinobu Baba, Mohamed I Walash
A facile, rapid, and highly sensitive microchip-based electrokinetic chromatographic method was developed for the simultaneous analysis of two gabapentinoid drugs, gabapentin (GPN) and pregabalin (PGN). Both drugs were first reacted with 4-fluoro-7-nitro-2,1,3-benzoxadiazole (NBD-F) via nucleophilic substitution reactions to yield highly fluorescent products with λex/em 470/540nm. Analyses of both fluorescently labeled compounds were achieved within 200s in a poly(methyl methacrylate) (PMMA) microchip with a 30mm separation channel...
April 26, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28458040/temporal-and-spatial-dynamics-of-peripheral-afferent-evoked-activity-in-the-dorsal-horn-recorded-in-rat-spinal-cord-slices
#13
Fang Yu, Zhen-Yu Zhao, Ting He, Yao-Qing Yu, Zhen Li, Jun Chen
In the present study, multi-electrode array recording was used to examine dorsal horn activity following stimulation of primary afferents in a rat dorsal root attached-spinal cord slice preparation. The multi-electrode array probe was placed under the dorsal horn slice and local field potentials evoked by stimulation on the dorsal root were analyzed. Three kinds of dorsal root-evoked responses were identified. In lamina IIo, local field potentials exhibited P1 (peak latency 1.46±0.08ms), N1 (2.77±0.18ms, n=12), N2 (7...
April 27, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28452872/combination-therapy-of-levetiracetam-and-gabapentin-against-nonconvulsive-seizures-induced-by-penetrating-traumatic-brain-injury
#14
Xi-Chun M Lu, Ying Cao, Andrea Mountney, Zhilin Liao, Deborah A Shear, Frank C Tortella
BACKGROUND: Post-traumatic seizures are a medical problem affecting patients with traumatic brain injury. Yet effective treatment is lacking owing to the limitations of anti-epileptic drugs (AEDs) applicable to these patients. METHOD: In this study, we evaluated the dose-response efficacy of levetiracetam (12.5-100.0mg/kg) and gabapentin (1.25-25.0mg/kg) administered either individually or in pairs at fixed-dose ratios as a combination in mitigating post-traumatic nonconvulsive seizures induced by severe penetrating ballistic-like brain injury (PBBI) in rats...
April 27, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28451875/prevalence-of-gabapentin-abuse-comparison-with-agents-with-known-abuse-potential-in-a-commercially-insured-us-population
#15
Alyssa M Peckham, Kathleen A Fairman, David A Sclar
BACKGROUND: Despite international calls to make gabapentin a controlled substance, studies of gabapentin use/abuse patterns are limited to small/high-risk samples and adverse event reports. OBJECTIVE: The aim of this study was to conduct a systematic assessment of the abuse potential/prevalence of gabapentin in a large sample. DATA SOURCE: Truven Health MarketScan(®) Commercial Claims and Encounters database, years 2013-2015. ELIGIBILITY CRITERIA: Patients with two or more claims for one or more abusable drugs and ≥12 months' continuous enrollment were sampled for Lorenz curve analysis...
April 27, 2017: Clinical Drug Investigation
https://www.readbyqxmd.com/read/28450909/impact-of-gabapentin-on-neuronal-high-voltage-activated-ca-2-channel-properties-of-injured-side-axotomized-and-adjacent-uninjured-dorsal-root-ganglions-in-a-rat-model-of-spinal-nerve-ligation
#16
Minmin Zhu, Xiaodi Sun, Xiaodong Chen, Hang Xiao, Manlin Duan, Jianguo Xu
The density and properties of ion channels in the injured axon and dorsal root ganglion (DRG) neuronal soma membrane change following nerve injury, which may result in the development of neuropathic pain. Gabapentin (GBP) is a drug for the first-line treatment of neuropathic pain. One of its therapeutic targets is the voltage-activated calcium channel (VACC). In the present study, the whole-cell patch clamp technique was used to examine the changes of high voltage-activated Ca(2+) (HVA-Ca(2+)) channels in DRG neurons from sham and neuropathic rats in the absence and presence of GBP...
March 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28449218/development-and-pharmacologic-characterization-of-the-rat-6-hz-model-of-partial-seizures
#17
Cameron S Metcalf, Peter J West, Kyle E Thomson, Sharon F Edwards, Misty D Smith, H S White, Karen S Wilcox
OBJECTIVE: The mouse 6 Hz model of psychomotor seizures is a well-established and commonly used preclinical model for antiseizure drug (ASD) discovery. Despite its widespread use both in the identification and differentiation of novel ASDs in mice, a corresponding assay in rats has not been developed. We established a method for 6 Hz seizure induction in rats, with seizure behaviors similar to those observed in mice including head nod, jaw clonus, and forelimb clonus. METHODS: A convulsive current that elicits these seizure behaviors in 97% of rats (CC97 ) was determined using a Probit analysis...
April 27, 2017: Epilepsia
https://www.readbyqxmd.com/read/28435320/identification-prevalence-and-treatment-of-painful-diabetic-neuropathy-in-patients-from-a-rural-area-in-south-carolina
#18
Jimmy Pruitt, Carolina Moracho-Vilrriales, Tiffaney Threatt, Sarah Wagner, Jun Wu, E Alfonso Romero-Sandoval
Diabetic peripheral neuropathy (DPN) represents significant burdens to many patients and the public health-care system. Patients with diabetes in rural areas have higher risk of developing complications and having less access to proper treatment. We studied a rural population of patients with diabetes who attended a pharmacist-led free clinic for a diabetic education program. Our objectives were to 1) determine the prevalence of DPN and painful diabetic neuropathy (p-DN) in patients with type 2 diabetes; 2) assess the proportion of patients with DPN and p-DN left undocumented upon physician referral to a pharmacist-led free clinic; and 3) determine the appropriateness of pain medication regimen...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28432164/use-of-gabapentin-in-the-treatment-of-chronic-pain-in-an-adolescent-with-sickle-cell-disease
#19
Cátia R Correia, Ana Teresa Soares, Laura Azurara, Maria João Palaré
Vaso-occlusive crises are the most common manifestation of sickle cell disease (SCD) and the main cause of hospital admission in these patients. There is emerging evidence that vaso-occlusive pain has both nociceptive and neuropathic components. However, the treatment of SCD-related pain with neuropathic drugs has not yet been systematically studied, particularly in children. We describe a 14-year-old girl with SCD and multiple hospital admissions for pain management for severe acute vaso-occlusive pain episodes...
April 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28428091/characterization-of-the-effects-of-l-4-chlorokynurenine-on-nociception-in-rodents
#20
Tony L Yaksh, Robert Schwarcz, H Ralph Snodgrass
Upon systemic administration in rats, the prodrug L-4-chlorokynurenine (4-Cl-KYN) (AV-101) is rapidly absorbed, actively transported across the blood-brain barrier, and converted in astrocytes to 7-chlorokynurenic acid (7-Cl-KYNA), a potent and specific antagonist of the GlyB co-agonist site of the NMDA receptor. We examined the effects of 4-Cl-KYN in several rat models of hyperalgesia and allodynia and determined the concentrations of 4-Cl-KYN and newly produced 7-Cl-KYNA in serum, brain and spinal cord. Adult male rats were given 4-Cl-KYN (56, 167, 500 mg/kg), the NMDA receptor antagonist MK-801 (0...
April 17, 2017: Journal of Pain: Official Journal of the American Pain Society
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