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1.
BMC Musculoskelet Disord ; 15: 73, 2014 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-24612503

RESUMO

BACKGROUND: Replantation in the upper extremity is a well-established microsurgical procedure. Many have reported patients' satisfaction and functional measurements.The aim was to investigate the long time consequences as activity limitations in hand/arm, the general health and cold sensitivity after a replantation or revascularization in the upper extremity and to examine if sense of coherence (SOC) can be an indicator for rehabilitation focus. METHODS: Between 1994-2008, 326 patients needed replantation/revascularization in the upper extremity. 297 patients were followed up. Information was collected from the medical notes and by questionnaires [Quick-DASH (disability hand/arm), EuroQ-5D (general health), CISS (cold sensitivity) and SOC (sense of coherence)]. Severity of injury was classified with the modified Hand Injury Severity Score (MHISS). RESULTS: The patients [272 (84%) men and 54 (16%) women; median age 39 years (1-81 years)], where most injuries affected fingers (63%) and thumb (25%), commonly affecting the proximal phalanx (43%). The injuries were commonly related to saws (22%), machines (20%) and wood splints (20%). A direct anastomosis (30%) or vein grafts (70%) were used. The overall survival was 90%. 59% were classified as Major.Equal parts of the injuries took part during work and leisure, DASH scores at follow up were worse (p = 0.005) in the former. Twenty percent changed work and 10% retired early. Patients with early retirement were significantly older, had a more severe injury, worse disability, quality of life and functional outcome. Median DASH score was low [11.4 (0-88.6)] and correlated with severity of injury. Abnormal cold sensitivity (CISS > 50) was seen in 51/209 (24%) and they had a worse disability, quality of life, functional outcome and lower SOC. Patients with a low SOC had on the whole a worse outcome compared to patients with a high SOC and with significant differences in age, EQ-5D, Quick-DASH and CISS. CONCLUSIONS: A high MHISS, abnormal cold intolerance and a low SOC seems to be factors influencing the patients' outcome and might be relevant in the rehabilitation of the patients. Also, those who had to retire early had a worse disability, quality of life and functional outcome.


Assuntos
Amputação Traumática/cirurgia , Traumatismos da Mão/cirurgia , Mãos/irrigação sanguínea , Reimplante , Procedimentos Cirúrgicos Vasculares , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Anastomose Cirúrgica , Criança , Pré-Escolar , Temperatura Baixa/efeitos adversos , Avaliação da Deficiência , Feminino , Seguimentos , Mãos/cirurgia , Traumatismos da Mão/reabilitação , Humanos , Hiperestesia/etiologia , Hiperestesia/psicologia , Lactente , Masculino , Microcirurgia , Pessoa de Meia-Idade , Traumatismos Ocupacionais/reabilitação , Traumatismos Ocupacionais/cirurgia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/psicologia , Qualidade de Vida , Recuperação de Função Fisiológica , Estudos Retrospectivos , Inquéritos e Questionários , Suécia/epidemiologia , Resultado do Tratamento , Procedimentos Cirúrgicos Vasculares/reabilitação , Veias/transplante , Adulto Jovem
2.
Cogn Emot ; 27(3): 441-52, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-22963392

RESUMO

Changes in sensation (e.g., prickly skin) are crucial constituents of emotional experience, and the intensity of perceived changes has been linked to emotional intensity and dysregulation. The current study examined the relationship between sensory sensitivity and emotion regulation among adults with anorexia nervosa (AN), a disorder characterised by disturbance in the experience of the body. Twenty-one individuals with AN, 20 individuals with AN who were weight-restored, and 23 typical controls completed self-report measures of sensory sensitivity and emotion regulation. AN participants reported heightened sensory sensitivity and greater difficulty regulating emotions relative to controls. Self-perceived sensory sensitivity was associated with greater emotion dysregulation. Weight-restored AN participants reported greater ability to regulate emotions than their currently underweight counterparts, despite heightened sensitivity. Findings suggest that hypersensitivity may be a persisting feature in AN, and that weight restoration may involve improved ability to cope with sensation.


Assuntos
Anorexia Nervosa/psicologia , Emoções , Hiperestesia/psicologia , Autoimagem , Adulto , Anorexia Nervosa/complicações , Índice de Massa Corporal , Estudos de Casos e Controles , Feminino , Humanos , Hiperestesia/complicações , Autorrelato
3.
BMC Musculoskelet Disord ; 12: 230, 2011 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-21992460

RESUMO

BACKGROUND: Neck-shoulder pain conditions, e.g., chronic trapezius myalgia, have been associated with sensory disturbances such as increased sensitivity to experimentally induced pain. This study investigated pain sensitivity in terms of bilateral pressure pain thresholds over the trapezius and tibialis anterior muscles and pain responses after a unilateral hypertonic saline infusion into the right legs tibialis anterior muscle and related those parameters to intensity and area size of the clinical pain and to psychological factors (sleeping problems, depression, anxiety, catastrophizing and fear-avoidance). METHODS: Nineteen women with chronic non-traumatic neck-shoulder pain but without simultaneous anatomically widespread clinical pain (NSP) and 30 age-matched pain-free female control subjects (CON) participated in the study. RESULTS: NSP had lower pressure pain thresholds over the trapezius and over the tibialis anterior muscles and experienced hypertonic saline-evoked pain in the tibialis anterior muscle to be significantly more intense and locally more widespread than CON. More intense symptoms of anxiety and depression together with a higher disability level were associated with increased pain responses to experimental pain induction and a larger area size of the clinical neck-shoulder pain at its worst. CONCLUSION: These results indicate that central mechanisms e.g., central sensitization and altered descending control, are involved in chronic neck-shoulder pain since sensory hypersensitivity was found in areas distant to the site of clinical pain. Psychological status was found to interact with the perception, intensity, duration and distribution of induced pain (hypertonic saline) together with the spreading of clinical pain. The duration and intensity of pain correlated negatively with pressure pain thresholds.


Assuntos
Hiperestesia/fisiopatologia , Músculos do Pescoço/fisiopatologia , Cervicalgia/fisiopatologia , Dor de Ombro/fisiopatologia , Adulto , Ansiedade/psicologia , Catastrofização/psicologia , Depressão/psicologia , Avaliação da Deficiência , Medo/psicologia , Feminino , Humanos , Hiperestesia/psicologia , Pessoa de Meia-Idade , Cervicalgia/psicologia , Medição da Dor , Limiar da Dor/fisiologia , Dor de Ombro/psicologia , Sono , Inquéritos e Questionários
4.
Neurol Sci ; 31 Suppl 1: S159-61, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20464611

RESUMO

Cutaneous allodynia (CA) is a frequent complaint during migraine attacks, recently associated with migraine transformation as well as psychiatric comorbidities. The aim of our study was to define the clinical features of allodynic migraineurs, in particular, the relationship between CA and personality profile. Between October 2008 and December 2009, 410 migraineurs admitted for the first time to our Headache Center underwent Allodynia Symptom Checklist, MIgraine DIsability Assessment Scale (MIDAS) and psychometric tests [Tridimensional Personality Questionnaire (TPQ), Toronto Alexithymia Scale, State and Trait Anxiety Inventory (STAI Y 1-2), and Beck Depression Inventory (BDI)]. Allodynia was present in 63% of cases, mostly in females. In CA patients, an association with female sex, chronic migraine, higher values of MIDAS, BDI, harm avoidance (HA, a TPQ dimension) and STAI Y-2 was found. Interestingly, CA appears to be associated with depression and a particular personality profile characterized by higher values of HA, suggesting an involvement of the serotonergic system in the development of CA in migraine. In conclusion, CA is associated with progression of migraine and it could be a marker of psychiatric comorbidities, in particular, depression and anxious trait.


Assuntos
Hiperestesia/complicações , Transtornos de Enxaqueca/complicações , Adulto , Sintomas Afetivos/psicologia , Distribuição de Qui-Quadrado , Feminino , Humanos , Hiperestesia/fisiopatologia , Hiperestesia/psicologia , Masculino , Pessoa de Meia-Idade , Transtornos de Enxaqueca/fisiopatologia , Transtornos de Enxaqueca/psicologia , Personalidade , Testes de Personalidade , Inquéritos e Questionários
5.
J Neurosci ; 28(34): 8489-501, 2008 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-18716207

RESUMO

Responses resulting from injury to the trigeminal nerve exhibit differences compared with those caused by lesion of other peripheral nerves. With the aim of elucidating the physiopathological mechanisms underlying cephalic versus extracephalic neuropathic pain, we determined the time course expression of proinflammatory cytokines interleukin-6 (IL-6) and IL-1beta, neuronal injury (ATF3), macrophage/microglial (OX-42), and satellite cells/astrocyte (GFAP) markers in central and ganglion tissues in rats that underwent unilateral chronic constriction injury (CCI) to either infraorbital nerve (IoN) (cephalic area) or sciatic nerve (SN) (extracephalic area). Whereas CCI induced microglial activation in both models, we observed a concomitant upregulation of IL-6 and ATF3 in the ipsilateral dorsal horn of the lumbar cord in SN-CCI rats but not in the ipsilateral spinal nucleus of the trigeminal nerve (Sp5c) in IoN-CCI rats. Preemptive treatment with minocycline (daily administration of 20 mg/kg, i.p., for 2 weeks) partially prevented pain behavior and microglial activation in SN-CCI rats but was ineffective in IoN-CCI rats. We show that IL-6 can upregulate OX-42 and ATF3 expression in cultured microglia and neurons from spinal cord, respectively, as well as in the dorsal horn after acute intrathecal administration of the cytokine. We propose that IL-6 could be one of the promoters of the signaling cascade leading to abnormal pain behavior in SN-CCI but not IoN-CCI rats. Our data further support the idea that different pathophysiological mechanisms contribute to the development of cephalic versus extracephalic neuropathic pain.


Assuntos
Mediadores da Inflamação/metabolismo , Interleucina-6/metabolismo , Neuralgia/etiologia , Neuralgia/metabolismo , Órbita/inervação , Nervo Isquiático , Fator 3 Ativador da Transcrição/genética , Animais , Antígenos de Diferenciação/genética , Comportamento Animal/efeitos dos fármacos , Biomarcadores/metabolismo , Constrição Patológica , Citocinas/genética , Ensaio de Imunoadsorção Enzimática , Gânglios Sensitivos/metabolismo , Proteína Glial Fibrilar Ácida/genética , Hiperestesia/etiologia , Hiperestesia/psicologia , Imuno-Histoquímica , Interleucina-6/genética , Masculino , Minociclina/farmacologia , Neuroglia/metabolismo , Neurônios/metabolismo , RNA Mensageiro/metabolismo , Ratos , Ratos Sprague-Dawley , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Nervo Isquiático/lesões , Fatores de Tempo , Traumatismos do Sistema Nervoso/complicações
6.
J Cosmet Dermatol ; 18(4): 1121-1127, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30280473

RESUMO

BACKGROUND: Sensitive skin refers to skin that tends to be highly responsive to stimuli such as physical, chemical, and psychological. Psychological factors play an important role in the pathology of sensitive skin. OBJECTIVE: This study investigated lipid difference between sensitive skin caused by psychological stress and normal skin, followed by construction of a support vector machine (SVM). METHODS: A noninvasive method was used to collect lipid samples from the skin surface. Ultra-performance liquid chromatography quadrupole time of flight mass spectrometry (UPLC-Q-TOF-MS) technique and partial least squares-discriminant analysis (PLS-DA) was used to screen for differential lipids. A correlation analysis was performed on differential lipids, and a support vector model was established based on the differential lipids. RESULTS: Twelve differential lipids were obtained, and the most differentiating species were triacylglycerols (TGs), followed by monounsaturated fatty acids (MUFAs), saturated fatty acids (SFAs), diacylglycerols (DGs), and 6-hydroxysphingosine levels. Triglyceride, SFA, and MUFA species showed a high correlation, and the support vector machine (SVM) differentiation model based on differential lipids had a 100% accuracy rate. CONCLUSION: Psychological stress may cause damage to the permeability and antimicrobial barriers of the skin, thereby resulting in sensitive skin. Differentiation models based on SVMs have good prospects for distinguishing sensitive skin caused by psychological stress.


Assuntos
Hiperestesia/etiologia , Lipídeos/análise , Pele/química , Estresse Psicológico/complicações , Máquina de Vetores de Suporte , Adulto , Cromatografia Líquida de Alta Pressão , Análise Discriminante , Feminino , Humanos , Hiperestesia/psicologia , Lipídeos/isolamento & purificação , Permeabilidade , Pele/inervação , Pele/metabolismo , Espectrometria de Massas em Tandem , Adulto Jovem
7.
J Neurosci ; 27(8): 2035-44, 2007 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-17314299

RESUMO

It has been proposed that substance P and calcitonin gene-related peptide (CGRP) are upregulated in low-threshold myelinated primary afferents after certain types of nerve injury, and that release of substance P from these afferents contributes to the resulting tactile allodynia. To test this hypothesis, we looked for neuropeptides in Abeta primary afferent terminals in the ipsilateral gracile nucleus and spinal dorsal horn in three nerve injury models: sciatic nerve transection (SNT), spinal nerve ligation (SNL), and chronic constriction injury (CCI). We also looked for evidence of neurokinin 1 (NK1) receptor internalization in the dorsal horn after electrical stimulation of Abeta afferents. We found no evidence of either substance P or CGRP expression in injured Abeta terminals in the spinal cord in any of the models. Although substance P was not detected in terminals of injured afferents in the gracile nucleus, CGRP was expressed in between 32 and 68% of these terminals, with a significantly higher proportion in the SNL and CCI models, compared with SNT. In addition, we did not detect any Abeta-evoked NK1 receptor internalization in neurons from laminas I, III, or IV of the dorsal horn in the CCI or SNL models. These results do not support the proposal that substance P is present at significant levels in the terminals of injured Abeta primary afferents in neuropathic models. They also suggest that any release of substance P from injured Abeta afferents is unlikely to activate NK1 receptors in the dorsal horn or contribute to neuropathic pain.


Assuntos
Hiperestesia/etiologia , Hiperestesia/fisiopatologia , Fibras Nervosas Mielinizadas/ultraestrutura , Neurônios Aferentes/metabolismo , Neurônios Aferentes/ultraestrutura , Substância P/metabolismo , Animais , Comportamento Animal , Peptídeo Relacionado com Gene de Calcitonina/metabolismo , Constrição Patológica , Denervação , Modelos Animais de Doenças , Estimulação Elétrica , Hiperestesia/patologia , Hiperestesia/psicologia , Ligadura , Masculino , Bulbo/metabolismo , Dor/psicologia , Ratos , Ratos Sprague-Dawley , Tempo de Reação , Receptores da Neurocinina-1/metabolismo , Nervo Isquiático/patologia , Nervo Isquiático/fisiopatologia , Limiar Sensorial , Medula Espinal/metabolismo , Traumatismos da Medula Espinal/metabolismo , Nervos Espinhais , Fatores de Tempo , Regulação para Cima
8.
J Pain ; 9(6): 543-51, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18455481

RESUMO

UNLABELLED: Allodynia means that innocuous tactile stimulation is felt as pain. Accordingly, cerebral activations during allodynia or touch should markedly differ. The aim of this study was to investigate whether the imagination of allodynia affects brain processing of touch in healthy subjects. Seventeen healthy subjects divided into 2 subgroups were investigated: The first group (n = 7) was familiar with allodynia, based on previous pain studies, whereas the second group (n = 10) had never knowingly experienced allodynia. Using functional magnetic resonance imaging, 2 experimental conditions were investigated. In one condition the subjects were simply touched at their left hand, whereas during the other condition they were asked to imagine pain (allodynia) during tactile stimulation of the right hand and to estimate the imagined pain on a numeric rating scale. Data processing and analysis were performed with the use of SPM5. The group analysis of all subjects revealed that tactile stimulation activated contralateral somatosensory cortices (S1 [primary] and S2 [secondary]), but the imagination of allodynia led to an additional activation of anterior cingulate cortex and bilateral activation of S2, insular cortex, and prefrontal cortices. Subgroup analysis using rating-weighted predictors revealed activation of the contralateral thalamus, anterior cingulate cortex, and amygdala and a bilateral activation of S1, S2, and insular cortex and prefrontal cortices in allodynia-experienced subjects. In contrast, allodynia-inexperienced subjects only activated contralateral S1 and bilateral S2. Just the imagination that touch is painful is able to partly activate the central pain system, but only when the subject has previous experience of this. According to our results, the medial pain system is involved in the encoding of imagined allodynia. PERSPECTIVE: This article reports that pain experience is able to alter central processing of sensory stimuli. Pain knowledge appears to be able to shift "normal" tactile processing to a different quality, resulting in modified brain activity. Therefore, our study may contribute to the current understanding of human pain and will promote future research on this field.


Assuntos
Ilusões , Imaginação , Conhecimento , Limiar da Dor/fisiologia , Dor/fisiopatologia , Dor/psicologia , Córtex Somatossensorial/fisiopatologia , Adulto , Mapeamento Encefálico , Feminino , Humanos , Hiperestesia/fisiopatologia , Hiperestesia/psicologia , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Oxigênio/sangue , Dor/patologia , Medição da Dor/métodos , Estimulação Física/efeitos adversos , Psicofísica , Córtex Somatossensorial/irrigação sanguínea , Tato
9.
Clin J Pain ; 22(7): 601-9, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16926575

RESUMO

OBJECTIVES: To examine whether generalized pain sensitivity in women with vulvar vestibulitis syndrome (VVS) is increased, suggestive of altered pain processing at the level of the central nervous system, and to investigate pain history and other pain measures in women with VVS. METHODS: Sixteen women with VVS and 16 age-matched (+/-3 years) and oral contraceptive status-matched (yes or no) control women participated in this cross-sectional study. The TP examination, typically used in the diagnosis of FMS, consists of the palpation of 9 bilateral nonvulvar areas by a blinded rheumatologist and was the main measure of generalized sensitivity. Pain intensity and unpleasantness rating (0 to 10) were recorded after each palpation. In addition, nonvulvar pain history, pain interference, catastrophizing, and anxiety were assessed via questionnaires. RESULTS: Women with VVS had significantly more painful TPs than nonaffected women; they reported significantly higher pain intensity and unpleasantness ratings and displayed more pain behaviors than controls (P<0.05). Furthermore, VVS patients reported having experienced more pain problems and associated interference, they catastrophized more in response to vulvar and nonvulvar pain, and they had higher levels of trait anxiety than controls (P<0.05). DISCUSSION: These results are consistent with recent findings of generalized sensitivity and heightened responses to pain in women with VVS. These results suggest that the mechanisms involved in VVS may include those that are genital specific in addition to those that are more generalized, and possibly centrally mediated.


Assuntos
Hiperestesia/diagnóstico , Medição da Dor/métodos , Palpação/métodos , Dor Pélvica/diagnóstico , Doenças da Vulva/diagnóstico , Adulto , Feminino , Humanos , Hiperestesia/fisiopatologia , Hiperestesia/psicologia , Limiar da Dor , Dor Pélvica/fisiopatologia , Dor Pélvica/psicologia , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Síndrome , Doenças da Vulva/fisiopatologia , Doenças da Vulva/psicologia
10.
Mol Autism ; 7: 4, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26788281

RESUMO

BACKGROUND: As evidenced in the DSM-V, autism spectrum disorders (ASD) are often characterized by atypical sensory behavior (hyper- or hypo-reactivity), but very few studies have evaluated olfactory abilities in individuals with ASD. METHODS: Fifteen adults with ASD and 15 typically developing participants underwent olfactory tests focused on superficial (suprathreshold detection task), perceptual (intensity and pleasantness judgment tasks), and semantic (identification task) odor processing. RESULTS: In terms of suprathreshold detection performance, decreased discrimination scores and increased bias scores were observed in the ASD group. Furthermore, the participants with ASD exhibited increased intensity judgment scores and impaired scores for pleasantness judgments of unpleasant odorants. Decreased identification performance was also observed in the participants with ASD compared with the typically developing participants. This decrease was partly attributed to a higher number of near misses (a category close to veridical labels) among the participants with ASD than was observed among the typically developing participants. CONCLUSIONS: The changes in discrimination and bias scores were the result of a high number of false alarms among the participants with ASD, which suggests the adoption of a liberal attitude in their responses. Atypical intensity and pleasantness ratings were associated with hyperresponsiveness and flattened emotional reactions, respectively, which are typical of participants with ASD. The high number of near misses as non-veridical labels suggested that categorical processing is functional in individuals with ASD and could be explained by attention-deficit/hyperactivity disorder. These findings are discussed in terms of dysfunction of the olfactory system.


Assuntos
Transtorno do Espectro Autista/fisiopatologia , Odorantes , Condutos Olfatórios/fisiopatologia , Percepção Olfatória , Adulto , Transtorno do Espectro Autista/psicologia , Limiar Diferencial/fisiologia , Emoções/fisiologia , Feminino , Humanos , Hiperestesia/etiologia , Hiperestesia/fisiopatologia , Hiperestesia/psicologia , Hipestesia/etiologia , Hipestesia/fisiopatologia , Hipestesia/psicologia , Masculino , Percepção Olfatória/fisiologia , Prazer , Reconhecimento Psicológico/fisiologia , Limiar Sensorial , Adulto Jovem
11.
Burns ; 42(7): 1573-1580, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27608525

RESUMO

INTRODUCTION: The Burn Specific Health Scale-Brief questionnaire is a widely validated tool for estimating the health related quality of life and for assessing the best multidisciplinary management of burn patients. The aim of this study was to translate the BSHS-B into French and to investigate its reliability and validity. METHODS: According to the procedure proposed by the Scientific Advisory Committee of the Medical Outcomes Trust, the Burn Specific Health Scale-Brief (BSHS-B) was translated from the English version into French. In order to test the reliability of the French version of the BSHS-B, 53 burn patients French speakers completed the BSHS-B and SF-36 questionnaires from two to four years after burn. Ten of them have been re-tested at 6 months after the first evaluation. To evaluate clinical utility of the BSHS-F, internal consistency, construct validity (using SF-36) and stability in time were assessed using Cronbach's alpha statistic, Spearman rank test, and intra-class correlation coefficient respectively. RESULTS: The French version of the BSHS-B Cronbach's alpha coefficient was 0.93 and was >0.80 for all the sub-domains. French version of the BSHS-B and the SF-36 were positively correlated, all the associations were statistically significant (p<0.01). Intra-class correlation coefficients for test-retest ranged between 0.95 and 0.99 for the sub-domains. The intra-class correlation coefficient (ICC) for the total score was 0.98. CONCLUSION: The French version of the BSHS-B shows a robust rate of internal consistency, construct validity and stability in time, supporting its application in routine clinical practice as well as in international studies.


Assuntos
Atividades Cotidianas , Afeto , Imagem Corporal/psicologia , Queimaduras/psicologia , Nível de Saúde , Relações Interpessoais , Qualidade de Vida , Sexualidade/psicologia , Adulto , Queimaduras/complicações , Queimaduras/fisiopatologia , Queimaduras/terapia , Feminino , Humanos , Hiperestesia/etiologia , Hiperestesia/fisiopatologia , Hiperestesia/psicologia , Masculino , Pessoa de Meia-Idade , Psicometria , Inquéritos e Questionários , Traduções , Trabalho
12.
Pain ; 157(8): 1645-1654, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27007066

RESUMO

The fear avoidance model (FAM) has been proposed to explain the development of chronic disability in a variety of conditions including whiplash-associated disorders (WADs). The FAM does not account for symptoms of posttraumatic stress and sensory hypersensitivity, which are associated with poor recovery from whiplash injury. The aim of this study was to explore a model for the maintenance of pain and related disability in people with WAD including symptoms of PTSD, sensory hypersensitivity, and FAM components. The relationship between individual components in the model and disability and how these relationships changed over the first 12 weeks after injury were investigated. We performed a longitudinal study of 103 (74 female) patients with WAD. Measures of pain intensity, cold and mechanical pain thresholds, symptoms of posttraumatic stress, pain catastrophising, kinesiophobia, and fear of cervical spine movement were collected within 6 weeks of injury and at 12 weeks after injury. Mixed-model analysis using Neck Disability Index (NDI) scores and average 24-hour pain intensity as the dependent variables revealed that overall model fit was greatest when measures of fear of movement, posttraumatic stress, and sensory hypersensitivity were included. The interactive effects of time with catastrophising and time with fear of activity of the cervical spine were also included in the best model for disability. These results provide preliminary support for the addition of neurobiological and stress system components to the FAM to explain poor outcome in patients with WAD.


Assuntos
Aprendizagem da Esquiva/fisiologia , Sensibilização do Sistema Nervoso Central/fisiologia , Medo/psicologia , Hiperestesia/etiologia , Transtornos de Estresse Pós-Traumáticos/etiologia , Traumatismos em Chicotada/diagnóstico , Adolescente , Adulto , Idoso , Catastrofização/complicações , Catastrofização/psicologia , Temperatura Baixa , Avaliação da Deficiência , Feminino , Humanos , Hiperestesia/psicologia , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Limiar da Dor/fisiologia , Índice de Gravidade de Doença , Transtornos de Estresse Pós-Traumáticos/psicologia , Traumatismos em Chicotada/complicações , Traumatismos em Chicotada/psicologia , Adulto Jovem
13.
Acta Gastroenterol Belg ; 79(1): 29-38, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26852761

RESUMO

Irritable bowel syndrome (IBS) is a common functional gastro-intestinal disorder, characterized by abdominal pain and altered intestinal motility. Visceral hypersensitivity is an important hallmark feature of IBS and is believed to underlie abdominal pain in patients with IBS. The two main risk factors associated with the development of IBS are gastrointestinal inflammation and psychological distress. On a peripheral level, visceral sensitivity seems to be modulated by several mechanisms. Immune cells in the mucosal wall, such as mast cells, and enterochromaffin cells may sensitize afferent nerves by release of their mediators. Furthermore, increased mucosal permeability, altered intestinal microflora and dietary habits may contribute to this feature. On a central level, an increased prevalence of psychiatric comorbidities is demonstrated in IBS patients, alongside alterations in the hormonal brain-gut axis, increased vigilance towards intestinal stimuli and functional and structural changes in the brain. The pathogenesis of IBS is complicated and multifactorial and the treatment remains clinically challenging. Dietary measures and symptomatic control are the cornerstones for IBS treatment and may be sufficient for patients experiencing mild symptoms, alongside education, reassurance and an effective therapeutic physician-patient relationship. New pharmacological therapies are aimed at interfering with mediator release and/or blockade of the relevant receptors within the gut wall, while modulation of the intestinal flora and diet may also be of therapeutic benefit. Tricyclic anti-depressants and serotonin reuptake inhibitors act both on a central and peripheral level by modulating pain signalling pathways.


Assuntos
Dor Abdominal/imunologia , Encéfalo/fisiopatologia , Hiperalgesia/imunologia , Hiperestesia/imunologia , Intestinos/imunologia , Síndrome do Intestino Irritável/imunologia , Estresse Psicológico/fisiopatologia , Dor Abdominal/fisiopatologia , Dor Abdominal/psicologia , Humanos , Hiperalgesia/fisiopatologia , Hiperalgesia/psicologia , Hiperestesia/fisiopatologia , Hiperestesia/psicologia , Intestinos/inervação , Intestinos/fisiopatologia , Síndrome do Intestino Irritável/fisiopatologia , Síndrome do Intestino Irritável/psicologia , Estresse Psicológico/psicologia
14.
J Oral Facial Pain Headache ; 29(2): 183-92, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25905537

RESUMO

AIMS: To determine whether self-regulation can be studied successfully in a rodent model and whether persistent facial pain influences self-regulatory behavior. METHODS: Thirty male Sprague-Dawley rats, divided into two groups, (1) chronic constriction injury of the infraorbital nerve (CCI-ION) and (2) naïve, were used in a two-part behavioral paradigm of self-regulation. This paradigm consisted of both a cued go/no-go task (part one) and a persistence trial (part two). All animals were acclimated and trained for a period of 4 weeks prior to the experimental manipulation and then tested for a total of 5 weeks following experimental manipulation. Results were analyzed with t tests, one-way analysis of variance, and two-way, repeated measures analysis of variance. RESULTS: CCI-ION surgery induced significant mechanical hypersensitivity of the ipsilateral whisker pad that began 3 weeks postsurgery and persisted through the duration of the experiment (P < .001). At weeks 4 and 5 post-experimental manipulation, naïve animals demonstrated a significant decrease in lever presses during the persistence task (P < .05) compared to baseline, whereas CCI-ION animals did not (P = .55). CONCLUSION: These results suggest that persistent pain influences behavioral regulation and that animals experiencing persistent pain may have difficulty adapting to environmental demands.


Assuntos
Comportamento Animal , Dor Facial/psicologia , Neuralgia/psicologia , Animais , Condicionamento Psicológico/fisiologia , Sinais (Psicologia) , Modelos Animais de Doenças , Fadiga/psicologia , Hiperestesia/psicologia , Aprendizagem , Masculino , Órbita/inervação , Limiar da Dor/fisiologia , Distribuição Aleatória , Ratos , Ratos Sprague-Dawley , Recompensa , Tato/fisiologia , Vibrissas/inervação
15.
Pain ; 70(2-3): 155-65, 1997 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-9150289

RESUMO

In male Wistar rats, the left ventral ramus of the L5 spinal nerve (RvL5) was cut, and animals were tested for allodynia-like behaviour in response to mechanical stimuli which were applied with von Frey hairs (4.3-205 mN) to the plantar skin of the hindpaw supplied by the intact L4 spinal nerve. After surgery, allodynia-like behaviour was evoked prominently on the operated (left) side and weakly on the contralateral (right) side. Eleven sham-operated rats displayed low levels of allodynia-like behaviour on the operated side comparable to that seen contralateral to the lesion in nerve-transected animals. In 14 rats, allodynic behaviour to mechanical stimuli on either side was dose dependently and permanently reduced, after 4-32 mg of the antibiotic Nebacetin had been applied locally at the transection site immediately after cutting the nerve. The same effect was observed when one of the active compounds of Nebacetin, neomycin, but not the other, bacitracin, was applied by continuous local infusion. Allodynia-like behaviour to stimuli between 4.3 mN and 124 mN was also prevented when 1-8 mg gadolinium acetate was applied at the transection site, whereas allodynic behaviour to stimuli of 205 mN was not affected at least for the first 7 days after the lesion. Both gadolinium and Nebacetin failed to prevent allodynic behaviour when applied later than 7 h after the nerve lesion. Neither substance interfered with the development of tactile allodynia when applied to the nerve rostral to the lesion site. The results suggest that Nebacetin and gadolinium interfere with the mechanisms at the RvL5 transection site crucial for the initiation of sensitisation of dorsal horn neurones and the development of mechanical allodynia.


Assuntos
Antibacterianos/farmacologia , Comportamento Animal/efeitos dos fármacos , Gadolínio/farmacologia , Hiperestesia/psicologia , Neomicina/farmacologia , Nervos Espinhais/efeitos dos fármacos , Administração Tópica , Animais , Anti-Infecciosos Locais/farmacologia , Anti-Inflamatórios não Esteroides/farmacologia , Bacitracina/farmacologia , Relação Dose-Resposta a Droga , Pé/fisiopatologia , Masculino , Dor/psicologia , Doenças do Sistema Nervoso Periférico/psicologia , Estimulação Física , Ratos , Ratos Wistar
16.
Neuroscience ; 95(3): 781-6, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-10670445

RESUMO

Intrathecal strychnine (glycine antagonist) or bicuculline (GABA(A) antagonist) yields a touch-evoked agitation that is blocked by N-methyl-D-aspartate receptor antagonism. We examined the effects of intrathecal strychnine and bicuculline on touch-evoked agitation and the spinal release of amino acids. Fifty-two Sprague-Dawley rats were prepared under halothane anesthesia with a lumbar intrathecal catheter and a loop dialysis catheter. Four days after implantation, rats were randomized to receive an intrathecal injection of N-methyl-D-aspartate (3 microg), strychnine (3 microg) or bicuculline (10 microg), or a combination of N-methyl-D-aspartate with bicuculline or strychnine. The agitation produced by brief light tactile stroking of the flank (tactile allodynia), and the spontaneous spinal release of glutamate, taurine and serine was measured. Intrathecal N-methyl-D-aspartate, strychnine and bicuculline produced similar touch-evoked allodynia. Intrathecal bicuculline and N-methyl-D-aspartate alone evoked a transient spinal release of glutamate and taurine, but not serine, in the 0- 10 min sample, while strychnine did not affect spinal transmitter release at any time. As GABA(A) but not glycine receptor inhibition at equi-allodynic doses increases glutamate release, while the allodynia of both is blocked by N-methyl-D-aspartate receptor antagonism, we hypothesize that GABA(A) sites regulate presynaptic glutamate release, while glycine regulates the excitability of neurons postsynaptic to glutamatergic terminals.


Assuntos
Aminoácidos/metabolismo , Antagonistas de Receptores de GABA-A , Hiperestesia/induzido quimicamente , Hiperestesia/fisiopatologia , Receptores de Glicina/antagonistas & inibidores , Medula Espinal/metabolismo , Tato/fisiologia , Animais , Comportamento Animal , Bicuculina , Agonistas de Aminoácidos Excitatórios , Antagonistas GABAérgicos , Glicinérgicos , Hiperestesia/psicologia , Masculino , N-Metilaspartato , Ratos , Ratos Sprague-Dawley , Estricnina
17.
Neurosci Lett ; 177(1-2): 50-2, 1994 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-7824181

RESUMO

We attempted to develop an experimental animal model using rat's tail for understanding the mechanisms involving peripheral neuropathic pain. Under sodium pentobarbital anesthesia, the left inferior caudal trunk of the rat was resected between the S3 and S4 spinal nerves. Latencies of tail-flick induced by the stimulus such as warm (40 degrees C) and cold (4 degrees C) water to the tail were measured for the following 30 weeks. In addition, sensitivity of the tail to mechanical stimulation was tested with von Frey hairs on these rats. Operated rats showed abnormal sensitivity of the tail to normally innocuous mechanical and thermal (warm and cold) stimuli. We interpreted these results as signs of neuropathic pain following nerve injury. The present model offers several advantages in performing behavioral tests; (1) it is easy to apply thermal stimulation to the rat's tail using a water bottle; (2) it is easy to apply the mechanical stimulation with von Frey hairs and to localize sensitive areas in the tail; and (3) blind behavioral studies are possible due to the lack of deformity in the tail after surgery.


Assuntos
Cauda Equina/lesões , Causalgia/fisiopatologia , Reação de Fuga/fisiologia , Hiperestesia/fisiopatologia , Modelos Neurológicos , Cauda/inervação , Animais , Causalgia/etiologia , Causalgia/psicologia , Temperatura Baixa , Temperatura Alta , Hiperestesia/etiologia , Hiperestesia/psicologia , Imersão , Masculino , Estimulação Física , Ratos , Ratos Sprague-Dawley , Tempo de Reação , Método Simples-Cego
18.
Artigo em Russo | MEDLINE | ID: mdl-1654699

RESUMO

The dynamics of asthenic syndromes was subjected to a psychopathological analysis in 200 patients. It has been established that asthenia may manifest not only as a transitory neurotic disorder (either completely reversible or preceding the formation of steady morbid manifestations of the other structure) but also represent a number of independent psychopathological disorders that determine the clinical picture of the disease at the main stages of its development. The essence of asthenic syndrome transformation may be reduced to polar change of the morbid manifestations: hyperesthesia--hypesthesia, with estrangement of bodily sensations and own activity. The dichotomy indicated may be distinguished as a prognostically informative differentiating sign. In the light of the typology suggested the authors consider not only the place of asthenia in the continuum of pathological disorders but also its correlation with negative alterations.


Assuntos
Hiperestesia/etiologia , Hipestesia/etiologia , Hipocondríase/complicações , Histeria/complicações , Neurastenia/complicações , Transtornos Psicofisiológicos/etiologia , Adulto , Feminino , Humanos , Hiperestesia/diagnóstico , Hiperestesia/psicologia , Hipestesia/diagnóstico , Hipestesia/psicologia , Masculino , Pessoa de Meia-Idade , Neurastenia/classificação , Transtornos Psicofisiológicos/diagnóstico
19.
Nutr Hosp ; 31(3): 1413-22, 2014 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-25726241

RESUMO

OBJECTIVES: To analyse the presence of heightened sensory sensitivity in patients with anorexia nervosa, which seems similar but not identical to that described in patients with unexplained somatic symptoms or body dysmorphic disorder. METHODS: We developed a sensory sensitivity scale in eating disorders (SASTCA), which measures the intensity of the response to specific somatosensory stimuli. The scale was completed by 48 patients with anorexia and a control group of 31 participants matched in age, sex and social and educational level. The results were compared with those obtained with the Barsky Somatosensory Amplification Scale (SSAS). RESULTS: The reliability (Cronbach's/alpha, 0.946; Guttman/ split-half, 0.936) and validity (ROC, 0.933) of the SASTCA scale are indicative of its high sensitivity and specificity. The anorexia group had a significantly higher mean score on the SASTCA scale than the control group (p<.001). Similarly, the patients with anorexia had a significantly higher mean value on the SSAS than the participants in the control group (p<.01), although the difference was less extreme. The 2 scales correlated positively (r=.634). DISCUSSION: These preliminary results suggest the presence in Anorexia of heightened sensory sensitivity which differs from the sensitivity of the control group. This sensitivity has a significant relationship with that described in patients with somatic complaints about health (SSD) or appearance (BDD). Could this heightened sensory sensitivity help us to explain the process of forming the distorted body self-concept (I'm fat, sick, ugly) in all these patients? Once its presence has been confirmed in other patients with anorexia, their relatives and other patients with somatic disorders this heightened sensitivity could constitute the somatic endophenotype of anorexia?


Objetivo: destacar la presencia de una sensibilidad extrema hacia estímulos externos e internos (Amplificación Somatosensorial) en pacientes con Anorexia, similar pero no idéntica, a la descrita en pacientes con unexple somatic symtoms. Método: Se ha elaborado una escala de Amplificación Somatosensorial para Trastornos de la Conducta Alimentaria, (SASTCA), que mide la intensidad de la respuesta hacia estímulos somatosensoriales específicos. La escala ha sido cumplimentada por un grupo de 48 pacientes anoréxicas y un grupo control de 31 sujetos emparejados en edad, sexo y nivel socioeducativo. Los resultados se han comparado con los obtenidos en la escala SSAS de Barsky. Resultados: La Fiabilidad (Alfa de Cronbach 0,946; dos mitades de Guttman 0,936) y la Validez (ROC, 0,933), son indicativas de elevada sensibilidad y especificidad de la escala SASTCA. El grupo de pacientes presenta una media 58,73 12,38, significativamente superior al grupo control 37,81 7,47, (=0,001). Las pacientes presentan en la escala SSAS una media 31,21 6,68 significativamente superior al grupo control 26,58 5,49 (=0,01), aunque la diferencia es menos extremada. Ambas escalas correlacionan positivamente. 0,634 Conclusiones: Los resultados sugieren la presencia en AN. de una sensibilidad extrema hacia estímulos somatosensoriales. ¿Podria esta elevada sensibilidad sensorial ayudarnos a explicar el proceso de formación del auto-concepto distorsionado ("gordo, enfermo, feo") de estos pacientes? De confirmar su presencia en otras muestras de pacientes con anorexia, en sus familiares y en diferentes pacientes somatomorfos o TCA, esta elevada sensibilidad podría considerarse el endofenotipo somatomorfo del trastorno anoréxico.


Assuntos
Anorexia Nervosa/complicações , Endofenótipos , Hiperestesia/complicações , Gravidade do Paciente , Estimulação Física , Adulto , Anorexia Nervosa/psicologia , Área Sob a Curva , Imagem Corporal , Estudos de Casos e Controles , Estudos Transversais , Suscetibilidade a Doenças , Emoções , Feminino , Humanos , Hiperestesia/diagnóstico , Hiperestesia/psicologia , Masculino , Exame Neurológico , Valor Preditivo dos Testes , Psicometria , Curva ROC , Reprodutibilidade dos Testes , Autoimagem , Transtornos Somatoformes/diagnóstico , Inquéritos e Questionários , Adulto Jovem
20.
Physiother Theory Pract ; 30(1): 38-48, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23879307

RESUMO

This case report describes a 48-year-old female who presented with complaints of right shoulder pain, hyperesthesias and swelling of the hand along with added symptoms of pain centralization following a cerebrovascular accident. On clinical evaluation, the patient satisfied the Budapest diagnostic criteria for Complex Regional Pain Syndrome (CRPS) type-1. Physical therapy management (1st three sessions) was initially focused on pain neurophysiology education with an aim to reduce kinesiophobia and reconceptualise her pain perception. The patient had an immediate significant improvement in her pain and functional status. Following this, pain modulation in the form of transcutaneous electrical nerve stimulation, kinesio tape application, "pain exposure" physical therapy and exercise therapy was carried out for a period of 7 weeks. The patient had complete resolution of her symptoms which was maintained at a six-month follow-up.


Assuntos
Hiperestesia/reabilitação , Modalidades de Fisioterapia , Distrofia Simpática Reflexa/reabilitação , Dor de Ombro/reabilitação , Reabilitação do Acidente Vascular Cerebral , Fita Atlética , Fenômenos Biomecânicos , Terapia Combinada , Terapia por Exercício , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Hiperestesia/diagnóstico , Hiperestesia/fisiopatologia , Hiperestesia/psicologia , Pessoa de Meia-Idade , Manejo da Dor , Medição da Dor , Percepção da Dor , Educação de Pacientes como Assunto , Modalidades de Fisioterapia/instrumentação , Distrofia Simpática Reflexa/diagnóstico , Distrofia Simpática Reflexa/fisiopatologia , Distrofia Simpática Reflexa/psicologia , Dor de Ombro/diagnóstico , Dor de Ombro/fisiopatologia , Dor de Ombro/psicologia , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/psicologia , Fatores de Tempo , Estimulação Elétrica Nervosa Transcutânea , Resultado do Tratamento
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