Abstract:
:The spinal gray matter region around the central canal, lamina X, is critically involved in somatosensory processing and visceral nociception. Although several classes of primary afferent fibers terminate or decussate in this area, little is known about organization and functional significance of the afferent supply of lamina X neurons. Using the hemisected ex vivo spinal cord preparation, we show that virtually all lamina X neurons receive primary afferent inputs, which are predominantly mediated by the high-threshold Aδ- fibers and C-fibers. In two-thirds of the neurons tested, the inputs were monosynaptic, implying a direct targeting of the population of lamina X neurons by the primary nociceptors. Beside the excitatory inputs, 48% of the neurons also received polysynaptic inhibitory inputs. A complex pattern of interactions between the excitatory and inhibitory components determined the output properties of the neurons, one-third of which fired spikes in response to the nociceptive dorsal root stimulation. In this respect, the spinal gray matter region around the central canal is similar to the superficial dorsal horn, the major spinal nociceptive processing area. We conclude that lamina X neurons integrate direct and indirect inputs from several types of thin primary afferent fibers and play an important role in nociception.
journal_name
Painjournal_title
Painauthors
Krotov V,Tokhtamysh A,Safronov BV,Belan P,Voitenko Ndoi
10.1097/j.pain.0000000000001586subject
Has Abstractpub_date
2019-09-01 00:00:00pages
1982-1988issue
9eissn
0304-3959issn
1872-6623pii
00006396-201909000-00009journal_volume
160pub_type
杂志文章相关文献
PAIN文献大全abstract::We investigated whether intraoperative 'subanesthetic doses' of ketamine have a postoperative anti-hyperalgesic and an analgesic effect and which is the preferential route of administration, either systemic (intravenous, i.v.) or epidural. One hundred patients scheduled for rectal adenocarcinoma surgery under combined...
journal_title:Pain
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/S0304-3959(01)00278-0
更新日期:2001-06-01 00:00:00
abstract::Altogether 553 children (195 first graders, mean age 6.8 years, and 358 third graders, mean age 8.7 years) participated in the development of a self-report measure to assess the intensity of children's pain. The first step was the derivation, from children's drawings of facial expressions of pain, of 5 sets of 7 schem...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/0304-3959(90)90018-9
更新日期:1990-05-01 00:00:00
abstract::Monoclonal antibodies against GD(2) ganglioside, such as ch14.18, the human-mouse chimeric antibody, have been shown to be effective for the treatment of neuroblastoma. However, treatment is associated with generalized, relatively opiate-resistant pain. We investigated if a point mutation in ch14.18 antibody (hu14.18K...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/j.pain.2010.01.024
更新日期:2010-04-01 00:00:00
abstract::Pain is generally considered to have a sensory and an affective component. Clinical research has suggested that morphine more potently attenuates the affective component as compared to the sensory component. Because preclinical nociception models typically focus on the sensory component of nociception, and do not asse...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/j.pain.2007.07.027
更新日期:2008-06-01 00:00:00
abstract::To inform case definition for neck/shoulder pain in epidemiological research, we compared levels of disability, patterns of association, and prognosis for pain that was limited to the neck or shoulders (LNSP) and more generalised musculoskeletal pain that involved the neck or shoulder(s) (GPNS). Baseline data on muscu...
journal_title:Pain
pub_type: 杂志文章
doi:10.1097/j.pain.0000000000000477
更新日期:2016-05-01 00:00:00
abstract::A short form of the McGill Pain Questionnaire (SF-MPQ) has been developed. The main component of the SF-MPQ consists of 15 descriptors (11 sensory; 4 affective) which are rated on an intensity scale as 0 = none, 1 = mild, 2 = moderate or 3 = severe. Three pain scores are derived from the sum of the intensity rank valu...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/0304-3959(87)91074-8
更新日期:1987-08-01 00:00:00
abstract::In a double-blind, crossover study, the effects of 75 mg amitriptyline alone during 5 weeks on pain intensity were compared with the effects of a combination of 75 mg amitriptyline and 3 mg flupentixol during 5 weeks in 34 patients with somatoform pain disorder. Both treatments resulted in a statistically significant ...
journal_title:Pain
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0304-3959(91)90007-K
更新日期:1991-10-01 00:00:00
abstract::Intrathecal (i.t.) injection of substance P (SP) results in a behavioral syndrome characterized by caudally directed biting and scratching. The present results indicate that repeated injections of 10 ng of SP, administered at 60 sec intervals, result in the rapid development of tachyphylaxis to this SP-induced behavio...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/0304-3959(88)90049-8
更新日期:1988-03-01 00:00:00
abstract::The present study examined antinociception produced by systemic administration of caffeine in the rat hot-plate (HP) and formalin tests and addressed several aspects of the mechanism of action of caffeine. Locomotor activity was monitored throughout. Caffeine produced a dose-related antinociception the HP (50-100 mg/k...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/0304-3959(94)00169-F
更新日期:1995-05-01 00:00:00
abstract::Antinociceptive effects of the 2 (each 1000 mg, orally) non-steroidal anti-inflammatory drugs (NSAIDs) acetaminophen (paracetamol) and antipyrine (phenazone) were investigated with a non-inflammatory experimental pain model in 32 healthy volunteers. Phasic pain was induced by intracutaneously applied brief electrical ...
journal_title:Pain
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0304-3959(92)90165-8
更新日期:1992-08-01 00:00:00
abstract::Although many patients with multiple sclerosis (MS) complain of trigeminal neuralgia (TN), its cause and mechanisms are still debatable. In a multicentre controlled study, we collected 130 patients with MS: 50 patients with TN, 30 patients with trigeminal sensory disturbances other than TN (ongoing pain, dysaesthesia,...
journal_title:Pain
pub_type: 杂志文章,多中心研究
doi:10.1016/j.pain.2008.12.026
更新日期:2009-06-01 00:00:00
abstract::Morphine is increasingly used in patients with chronic non-cancer pain, but a major concern associated with chronic use relates to possible cognitive side-effects. The aim of this long-term prospective study was to evaluate the cognitive impact of oral sustained release morphine in patients with non-cancer pain. A bat...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/s0304-3959(03)00047-2
更新日期:2003-07-01 00:00:00
abstract::The pathophysiology of burning mouth syndrome (BMS) is largely unknown. Thus, the aim was to study oral mucosal blood flow in BMS-patients using laser Doppler flowmetry (LDF). Thirteen BMS patients (11 female, two male; mean age+/-SD 64.3+/-7.9 years, mean disease duration 18.9+/-6.2 months) and 13 healthy non-smoking...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/S0304-3959(00)00410-3
更新日期:2001-02-15 00:00:00
abstract::Two classes of neurons with distinct responses to opioids have been identified in the rostral ventromedial medulla (RVM), a region with a well-documented role in nociceptive modulation. 'On-cells' are directly inhibited by opioids, and opioids can thus gain access to the modulatory circuitry of the RVM by an action on...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/s0304-3959(97)00226-1
更新日期:1998-04-01 00:00:00
abstract::High-quality information on the potential benefit and harm of a drug is required for patients and clinicians to make informed treatment decisions and to enable cost-effectiveness modeling to be undertaken. This systematic review describes the collection and reporting of adverse event data as presented in published cli...
journal_title:Pain
pub_type: 杂志文章,评审
doi:10.1016/j.pain.2012.08.012
更新日期:2013-02-01 00:00:00
abstract:ABSTRACT:While knee and hip replacements are intended to relieve pain and improve function, up to 44% of knee replacement patients and 27% of hip replacement patients report persistent postoperative joint pain. Improving surgical pain management is essential. We conducted a single-site, three-arm, parallel-group random...
journal_title:Pain
pub_type: 杂志文章
doi:10.1097/j.pain.0000000000002195
更新日期:2021-01-12 00:00:00
abstract::It has been confirmed that the voltage-gated persistent sodium currents mediate the generation of subthreshold membrane potential oscillations (SMPOs) and contribute to shaping repetitive firing. Our previous study indicated that gabapentin (GBP) administration induced a dose-dependent inhibition of SMPO in chronicall...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/j.pain.2009.01.020
更新日期:2009-05-01 00:00:00
abstract::A study of the extent of sympathetic blockade after stellate ganglion block was assessed using liquid crystal thermography. Two volumes (10 and 20 ml) of bupivacaine 0.5% plain were used. Irrespective of the volume used cranial sympathetic block always occurred and thoracic sympathetic block never occurred. While uppe...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/0304-3959(89)90023-7
更新日期:1989-02-01 00:00:00
abstract::Nitric oxide (NO), synthesised by different isoforms of nitric oxide synthase (NOS), has been linked with the development and maintenance of nociception. We studied the role of the inducible isoform, iNOS, in two different rat pain models with an inflammatory component. iNOS was immunohistochemically detected locally ...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/j.pain.2005.10.028
更新日期:2006-01-01 00:00:00
abstract:ABSTRACT:Morphine-induced alterations in sphingolipid metabolism in the spinal cord and increased formation of the bioactive sphingolipid metabolite sphingosine-1-phosphate (S1P) have been implicated in the development of morphine-induced hyperalgesia (OIH; increased pain sensitivity) and antinociceptive tolerance. The...
journal_title:Pain
pub_type: 杂志文章
doi:10.1097/j.pain.0000000000001888
更新日期:2020-09-01 00:00:00
abstract:ABSTRACT:Efficacy of treatment is heavily dependent on experience and expectations. Moreover, humans can generalize from one experience to a perceptually similar but novel situation. We investigated whether and how this applies to pain relief, using ecologically valid tonic pain stimuli treated by surreptitiously lower...
journal_title:Pain
pub_type: 杂志文章
doi:10.1097/j.pain.0000000000002166
更新日期:2020-12-15 00:00:00
abstract::Chronic pain often interferes with daily functioning, and may become a threat to an individual's sense of self. Despite the development of a recent theoretical account focussing upon the relationship between the presence of chronic pain and a person's self, research investigating this idea is limited. In the present s...
journal_title:Pain
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.pain.2013.07.055
更新日期:2013-12-01 00:00:00
abstract::Fibromyalgia (FM) is a common and often debilitating chronic pain condition. Research shows that symptoms of depression and anxiety are present in up to three quarters of individuals with FM. Of concern, most adults with FM cannot access traditional face-to-face cognitive behavioural pain management programs, which ar...
journal_title:Pain
pub_type: 杂志文章
doi:10.1097/j.pain.0000000000000802
更新日期:2017-04-01 00:00:00
abstract::We report on a patient suffering severe pain following a long-standing sacral chordoma in whom management of therapy and pain was extremely difficult. Because orally administered morphine was observed to be ineffective in the early stages of treatment, we tried to achieve pain relief by using epidural morphine. This w...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/0304-3959(94)90085-X
更新日期:1994-11-01 00:00:00
abstract::A preliminary report of clinical study revealed that chronic discogenic low back pain could be treated by intradiscal methylene blue (MB) injection. We investigated the effect of intradiscal MB injection for the treatment of chronic discogenic low back pain in a randomized placebo-controlled trial. We recruited 136 pa...
journal_title:Pain
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.pain.2010.01.021
更新日期:2010-04-01 00:00:00
abstract::Although trigeminal neuralgia and atypical facial pain can usually be distinguished on the basis of several well-established criteria, differential diagnosis is difficult in a small number of patients. The purpose of this study was to determine whether the McGill Pain Questionnaire (MPQ) is capable of discriminating b...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/0304-3959(86)90157-0
更新日期:1986-12-01 00:00:00
abstract::Is a person's response to one noxious stimulus similar to his/her responses to other noxious stimuli? This long-investigated topic in pain research has provided inconclusive results. In the present study, 2 samples were studied: one using 60 healthy volunteers and the other using 29 patients with coronary artery disea...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/0304-3959(94)90135-X
更新日期:1994-09-01 00:00:00
abstract::Although EMLA is known to be an effective topical anesthetic, its rate of success is unknown. Indeed, researchers have suggested that EMLA may fail with young and apprehensive children. Therefore, the objectives of this study were to assess EMLA's rate of success as well as factors which predict success. A double-blin...
journal_title:Pain
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0304-3959(95)00100-X
更新日期:1996-01-01 00:00:00
abstract::The responses of primate spinothalamic tract (STT) neurons to innocuous and noxious mechanical stimuli applied to the skin can be enhanced for more than an hour following prolonged noxious stimulation. This increased responsiveness is thought to reflect sensitization of dorsal horn neurons and may help account for sec...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/0304-3959(94)90164-3
更新日期:1994-03-01 00:00:00
abstract::There are few prospective studies assessing risk factors for onset of temporomandibular (TMD) pain disorders in any age group. The aim of this prospective cohort study was to identify risk factors for onset of clinically significant TMD pain (i.e., pain meeting research diagnostic criteria for myofascial pain and/or a...
journal_title:Pain
pub_type: 杂志文章
doi:10.1016/j.pain.2006.10.012
更新日期:2007-06-01 00:00:00