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- 저자 : Wolnei Caumo (검색결과 2 건)
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Lauren N. Spezia Adachi,Rafael Vercelino,Carla de Oliveira,Vanessa L. Scarabelot,Andressa de Souza,Liciane F. Medeiros,Stefania G. Cioato,Wolnei Caumo,Iraci L.S. Torres 사단법인약침학회 2018 Journal of Acupuncture & Meridian Studies Vol.11 No.3
The present study aimed to determine whether isoflurane interferes with the analgesiceffects of acupuncture (Ac) and electroacupuncture (EA), using a neuropathic pain(NP) rat model. In total, 140 male Wistar rats were used; isoflurane-induced nociceptiveresponse was evaluated using the von Frey test, serum calcium-binding protein b (S100b)levels and nerve growth factor (NGF) levels in the left sciatic nerve. The NP model wasinduced by chronic constriction injury of the sciatic nerve at 14 days after surgery. Treatment was initiated after NP induction with or without isoflurane anesthesia (20 min/day/8 days). The von Frey test was performed at baseline, 14 days postoperatively, andimmediately, 24 h, and 48 h after the last treatment. Results of the nociceptive test andthree-way analysis of variance were analyzed by generalized estimating equations, theBonferroni test, followed by StudenteNewmaneKeuls or Fisher’s least significant differencetests for comparing biochemical parameters (significance defined as p 0.05). Atbaseline, no difference was noted in the nociceptive response threshold among allgroups. Fourteen days after surgery, compared with other groups, NP groups showed adecreased pain threshold, confirming establishment of NP. Ac and EA enhanced the mechanicalpain threshold immediately after the last session in the NP groups, without anesthesia. Isoflurane administration caused increased nociceptive threshold in all groups,and this effect persisted for 48 h after the last treatment. There was an interaction betweenthe independent variables: pain, treatments, and anesthesia in serum S100b levelsand NGF levels in the left sciatic nerve. Isoflurane enhanced the analgesic effects of Acand EA and altered serum S100b and left sciatic nerve NGF levels in rats with NP.
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Matheus Soldatelli,Álvaro de Oliveira Franco,Felipe Picon,Juliana Ávila Duarte,Ricardo Scherer,Janete Bandeira,Maxciel Zortea,Iraci Lucena da Silva Torres,Felipe Fregni,Wolnei Caumo 대한통증학회 2023 The Korean Journal of Pain Vol.36 No.1
Background: Resting-state functional connectivity (rs-FC) may aid in understanding the link between painmodulating brain regions and the descending pain modulatory system (DPMS) in fibromyalgia (FM). This study investigated whether the differences in rs-FC of the primary somatosensory cortex in responders and non-responders to the conditioned pain modulation test (CPM-test) are related to pain, sleep quality, central sensitization, and the impact of FM on quality of life. Methods: This cross-sectional study included 33 females with FM. rs-FC was assessed by functional magnetic resonance imaging. Change in the numerical pain scale during the CPM-test assessed the DPMS function. Subjects were classified either as non-responders (i.e., DPMS dysfunction, n = 13) or responders (n = 20) to CPM-test. A generalized linear model (GLM) and a receiver operating characteristic (ROC) curve analysis were performed to check the accuracy of the rs-FC to differentiate each group. Results: Non-responders showed a decreased rs-FC between the left somatosensory cortex (S1) and the periaqueductal gray (PAG) (P < 0.001). The GLM analysis revealed that the S1-PAG rs-FC in the left-brain hemisphere was positively correlated with a central sensitization symptom and negatively correlated with sleep quality and pain scores. ROC curve analysis showed that left S1-PAG rs-FC offers a sensitivity and specificity of 85% or higher (area under the curve, 0.78, 95% confidence interval, 0.63–0.94) to discriminate who does/does not respond to the CPM-test. Conclusions: These results support using the rs-FC patterns in the left S1-PAG as a marker for predicting CPM-test response, which may aid in treatment individualization in FM patients.
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