BackgroundScalp acupuncture has shown a remarkable treatment efficacy on motor dysfunction in patients with stroke in China, especially the motor area of Jiao’s scalp acupuncture, which is the most widely used treatment. However, previous studies have summarized that the clinical curative effect of acupuncture treatment for stroke remains uncertain. Meanwhile, no randomized controlled trials on Jiao’s scalp acupuncture have been performed. The aim of this study is to evaluate the efficacy and safety of Jiao’s scalp acupuncture for motor dysfunction in ischemic stroke.Methods/designThis is an assessor- and analyst-blinded, randomized controlled trial. One hundred and eight stroke patients with motor dysfunction meeting the inclusion criteria will be allocated by a 1:1 ratio into either an acupuncture treatment group or a control group. Stroke patients in the control group will receive conventional rehabilitation treatment, whereas a combination of Jiao’s scalp acupuncture and conventional rehabilitation treatment will be applied to the acupuncture group. Forty treatment sessions will be performed over an 8-week period. The Fugl-Meyer Assessment scale will be assessed as the primary outcome measure. The Modified Barthel Index, the Stroke-Specific Quality of Life, and the Stroke Syndrome of Traditional Chinese Medicine scales will be selected as secondary outcome measurements. All assessments will be conducted at baseline, week 4 (treatment 20), week 8 (treatment 40), week 12 (follow-up), and week 16 (follow-up).DiscussionThis is the first trial evaluating the efficacy and safety of Jiao’s scalp acupuncture for motor dysfunction in ischemic stroke. The results of this trial are expected to provide relevant evidence demonstrating that Jiao’s scalp acupuncture can be used as an effective rehabilitation treatment method for improving motor dysfunction in ischemic stroke.Trial registrationClinicalTrials.gov, NCT02871453. Registered on 17 July 2016.Electronic supplementary materialThe online version of this article (doi:10.1186/s13063-017-2000-x) contains supplementary material, which is available to authorized users.
BackgroundIntramuscular (IM) heating-needle therapy, a non-painful thermal therapy, has been found to exert an analgesic effect via the thalamic ventromedial (VM) nucleus, solely by reducing the triggering threshold for descending inhibition; this could be modulated by intracephalic 5-hydroxytryptamine-1A (5-HT1A) receptors, rather than via the regular analgesia pathway. In this study, the effect and the potential serotonergic mechanism of IM heating-needle stimulation at 43°C were explored in the case of the pathological state of lumbar disc herniation (LDH).MethodsA modified classic rat model of LDH, induced via autologous nucleus pulposus implantation, was utilized. IM inner heating-needles were applied at the attachment point of skeletal muscle on both sides of the L4 and L5 spinous processes. WAY-100635 and 8-OH-DAPT, 5-HT1A receptor antagonist and agonist, were separately injected into the bilateral thalamic mediodorsal (MD) and VM nucleus via an intrathalamic catheter. Nociception was assessed by bilateral paw withdrawal reflexes elicited by noxious mechanical and heat stimulation.ResultsIM heating-needle stimulation at a temperature of 43°C for 30 or 45 min significantly relieved both mechanical and heat hyperalgesia in the rat model of LDH (P < 0.05). Heat hyperalgesia was found to be significantly enhanced by administration of WAY-100635 into the thalamic VM nucleus, blocking the effect of heating-needle stimulation in a dose-dependent manner (P < 0.05), while no effects were detected after injection into the thalamic MD nucleus (P > 0.05). Injection of 8-OH-DAPT into the thalamic MD nucleus exerted no modulating effects on either mechanical or heat hyperalgesia (P > 0.05).ConclusionIM heating-needle stimulation at 43°C for 30 min may activate 5-HT1A mechanisms, via the thalamic VM nucleus, to attenuate hyperalgesia in a rat model of LDH. This innocuous form of thermal stimulation is speculated to selectively activate the descending inhibition mediated by the thalamic VM nucleus, exerting an analgesic effect, without the involvement of descending facilitation of the thalamic MD nucleus.
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