Publications by authors named "Jun-Qi Chen"

18 Publications

  • Page 1 of 1

The Role of Ophiopogonin D in Atherosclerosis: Impact on Lipid Metabolism and Gut Microbiota.

Am J Chin Med 2021 14;49(6):1449-1471. Epub 2021 Jul 14.

The Fifth Affiliated Hospital, Southern Medical University, Guangzhou 510920, P. R. China.

Gut microbiota has been proven to play an important role in many metabolic diseases and cardiovascular disease, particularly atherosclerosis. Ophiopogonin D (OPD), one of the effective compounds in , is considered beneficial to metabolic syndrome and cardiovascular diseases. In this study, we have illuminated the effect of OPD in ApoE knockout (ApoE[Formula: see text] mice on the development of atherosclerosis and gut microbiota. To investigate the potential ability of OPD to alleviate atherosclerosis, 24 eight-week-old male ApoE[Formula: see text] mice (C57BL/6 background) were fed a high-fat diet (HFD) for 12 weeks, and 8 male C57BL/6 mice were fed a normal diet, serving as the control group. ApoE[Formula: see text] mice were randomly divided into the model group, OPD group, and simvastatin group ([Formula: see text]= 8). After treatment for 12 consecutive weeks, the results showed that OPD treatment significantly decreased the plaque formation and levels of serum lipid compared with those in the model group. In addition, OPD improved oral glucose tolerance and insulin resistance as well as reducing hepatocyte steatosis. Further analysis revealed that OPD might attenuate atherosclerosis through inhibiting mTOR phosphorylation and the consequent lipid metabolism signaling pathways mediated by SREBP1 and SCD1 and . Furthermore, OPD treatment led to significant structural changes in gut microbiota and fecal metabolites in HFD-fed mice and reduced the relative abundance of genera associated with cholesterol metabolism. Collectively, these findings illustrate that OPD could significantly protect against atherosclerosis, which might be associated with the moderation of lipid metabolism and alterations in gut microbiota composition and fecal metabolites.
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http://dx.doi.org/10.1142/S0192415X21500683DOI Listing
July 2021

Water-Tree Resistability of UV-XLPE from Hydrophilicity of Auxiliary Crosslinkers.

Molecules 2020 Sep 10;25(18). Epub 2020 Sep 10.

Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China.

The water-resistant characteristics of ultraviolet crosslinked polyethylene (UV-XLPE) are investigated specially for the dependence on the hydrophilicities of auxiliary crosslinkers, which is significant to develop high-voltage insulating cable materials. As auxiliary crosslinking agents of polyethylene, triallyl isocyanurate (TAIC), trimethylolpropane trimethacrylate (TMPTMA), and N,N'-m-phenylenedimaleimide (HAV2) are individually adopted to prepared XLPE materials with the UV-initiation crosslinking technique, for the study of water-tree resistance through the accelerating aging experiments with water blade electrode. The stress-strain characteristics and dynamic viscoelastic properties of UV-XLPE are tested by the electronic tension machine and dynamic thermomechanical analyzer. Monte Carlo molecular simulation is used to calculate the interaction parameters and mixing energy of crosslinker/water binary systems to analyze the compatibility between water and crosslinker molecules. Water-tree experiments verify that XLPE-TAIC represents the highest ability to inhibit the growth of water-trees, while XLPE-HAV2 shows the lowest resistance to water-trees. The stress-strain and viscoelastic properties show that the concentration of molecular chains connecting the adjacent lamellae in amorphous phase of XLPE-HAV2 is significantly higher than that of XLPE-TAIC and XLPE-TMPTMA. The molecular simulation results demonstrate that TAIC/water and TMPTMA/water binary systems possess a higher hydrophilicity than that of HAV2/water, as manifested by their lower interaction parameters and mixing free energies. The auxiliary crosslinkers can not only increase the molecular density of amorphous polyethylene between lamellae to inhibit water-tree growth, but also prevent water molecules at insulation defects from agglomerating into micro-water beads by increasing the hydrophilicity of auxiliary crosslinkers, which will evidently reduce the damage of micro-water beads on the amorphous phase in UV-XLPE. The better compatibility of TAIC and water molecules is the dominant reason accounting for the excellent water resistance of XLPE-TAIC.
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http://dx.doi.org/10.3390/molecules25184147DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7570514PMC
September 2020

Improved Water-Tree Resistances of SEBS/PP Semi-Crystalline Composites under Crystallization Modifications.

Molecules 2020 Aug 12;25(16). Epub 2020 Aug 12.

Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China.

Water-tree resistances of styrene block copolymer/polypropylene (SEBS/PP) composites are investigated by characterizing crystallization structures in correlation with the dynamic mechanical properties to elucidate the micro-structure mechanism of improving insulation performances, in which the accelerated aging experiments of water trees are performed with water-knife electrodes. The water-tree morphology in spherulites, melt-crystallization characteristics and lamella structures of the composite materials are observed and analyzed by polarizing microscopy (PLM), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM), respectively. Dynamic relaxation and stress-strain characteristics are specifically studied by means of a dynamic thermomechanical analyzer (DMA) and electronic tension machine, respectively. No water-tree aging occurs in both the highly crystalline PP and the noncrystalline SEBS elastomer, while the water trees arising in SEBS/PP composites still has a significantly lower size than that in low-density polyethylene (LDPE). Compared with LDPE, the PP matrix of the SEBS/PP composite represent a higher crystallinity with a larger crystallization size in consistence with its higher mechanical strength and lower dynamic relaxation loss. SEBS molecules agglomerate as a "island" phase, and PP molecules crystallize into thin and short lamellae in composites, leading to the blurred spherulite boundary and the appreciable slips between lamellae under external force. The high crystallinity of the PP matrix and the strong resistance to slips between lamellae in the SEBS/PP composite essentially account for the remarkable inhibition on water-tree growth.
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http://dx.doi.org/10.3390/molecules25163669DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7463533PMC
August 2020

Improved DC Dielectric Performance of Photon-Initiated Crosslinking Polyethylene with TMPTMA Auxiliary Agent.

Materials (Basel) 2019 Oct 29;12(21). Epub 2019 Oct 29.

Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin 150080, China.

To achieve high direct current (DC) dielectric performance of crosslinked polyethylene (XLPE) applied for insulated cable, the auxiliary crosslinking agent of trimethylolpropane trimethacrylate (TMPTMA) is employed in photon-initiated crosslinking process to the present polar-molecular group which will introduce deep traps for charge carriers. The space-charge accumulation and electrical conductance of XLPE are observably suppressed due to the deep traps deriving from the TMPTMA crosslinkers that are chemically connecting (grafted onto) polyethylene molecules. Thermally stimulated depolarization current tests and first-principles calculations consistently demonstrate a trapping mechanism of impeding charge injection and carrier transport in XLPE with TMPTMA crosslinkers. The characteristic cyclic anhydrides with coupled carbonyl groups are used as auxiliary crosslinkers to promote crosslinking efficiency and provide polar groups to polyethylene molecules which can be effectively fulfilled in industrial cable production. The results of infrared spectroscopy show that the auxiliary crosslinkers have been successfully grated to polyethylene molecules through the UV-initiation process. The space-charge characteristics achieve a significant improvement consistent with the theoretical estimation that deeper electronic traps can be introduced by auxiliary crosslinker and will consequently suppress space-charge accumulation through a trapping mechanism. Meanwhile, the conductivity of XLPE observably increases after using TMPTMA auxiliary crosslinkers at various temperatures of cable operation. The first-principles calculations also demonstrate that substantial electronic bound states have been introduced at the band edge of polyethylene molecules crosslinked by TMPTMA, leading to reduction in electrical conductivity. On the advantage of ameliorating DC dielectric performance by way of UV-initiated crosslinking process, the present research suggests a substantial strategy in XLPE cable industrial productions.
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http://dx.doi.org/10.3390/ma12213540DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6861926PMC
October 2019

Modulatory effect of International Standard Scalp Acupuncture on brain activation in the elderly as revealed by resting-state fMRI.

Neural Regen Res 2019 Dec;14(12):2126-2131

School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong Province, China.

The specific mechanisms by which acupuncture affects the central nervous system are unclear. In the International Standard Scalp Acupuncture system, acupuncture needles are applied at the middle line of the vertex, anterior parietal-temporal oblique line, and the posterior parietal-temporal oblique line. We conducted a single-arm prospective clinical trial in which seven healthy elderly volunteers (three men and four women; 50-70 years old) received International Standard Scalp Acupuncture at MS5 (the mid-sagittal line between Baihui (DU20) and Qianding (DU21)), the left MS6 (line joining Sishencong (EX-HN1) and Xuanli (GB6)), and the left MS7 (line joining DU20 and Qubin (GB7)). After acupuncture, resting-state functional magnetic resonance imaging demonstrated changes in the fractional amplitude of low frequency fluctuations and regional homogeneity in various areas, showing remarkable enhancement of regional homogeneity in the bilateral anterior cingulate, left medial frontal gyrus, supramarginal gyrus, right middle frontal gyrus, and inferior frontal gyrus. Functional connectivity based on a seed region at the right middle frontal gyrus (42, 51, 9) decreased at the bilateral medial superior frontal gyrus. Our data preliminarily indicates that the international standard scalp acupuncture in healthy elderly participants specifcally enhances the correlation between the brain regions involved in cognition and implementation of the brain network regulation system and the surrounding adjacent brain regions. The study was approved by the Ethics Committee of the China-Japan Union Hospital at Jilin University, China, on July 18, 2016 (approval No. 2016ks043).
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http://dx.doi.org/10.4103/1673-5374.262590DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6788231PMC
December 2019

Cordyceps militaris polysaccharides exerted protective effects on diabetic nephropathy in mice via regulation of autophagy.

Food Funct 2019 Aug 31;10(8):5102-5114. Epub 2019 Jul 31.

Department of Clinical pharmacy, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, China.

The present study was designed to investigate the protective effects of Cordyceps militaris polysaccharides (CMP) on STZ-treated DN mice. CMP were identified by FT-IR and HPLC. Diabetic nephropathy (DN) was induced in male C57BL/6 mice by the injection of streptozotocin (STZ, 50 mg kg) in citrate buffer on 5 consecutive days. Administration of CMP at 200 and 400 mg kg or irbesartan at 60 mg kg in the STZ-treated mice could prevent the damage caused by STZ. CMP significantly reduced the STZ-induced higher expression of the kidney index, TC, TG, MDA, urinary protein, Scr, and BUN, while it markedly increased the STZ-induced decrease in GSH levels compared with the DN group. Histopathology analysis of the kidney by PAS, Masson, and HE staining confirmed the renal injury induced by STZ and the protective effects of CMP. Transmission electron microscopy (TEM) results confirmed the severe foot process effacement induced by STZ, but CMP treatment inhibited the podocytes' structure defects and ameliorated the function of podocytes. Desmin was measured by immunofluorescence and was related to podocyte injury. The results showed that CMP lessened the expression of desmin induced by STZ. CD68 expression was measured by immunohistochemistry analysis, and the expressions of IL-1β, IL-6, and MCP-1 mRNA were measured by qRT-PCR. The results showed that CMP suppressed the expressions of CD68, IL-1β, IL-6, and MCP-1 mRNA induced by STZ. The role of autophagy in the treatment of DN mice with CMP was detected by TEM and western blotting. The results showed that the administration of CMP was able to overcome the STZ-treated autophagy deficiency, significantly increase the rate of autophagy in the kidney, promote the expression of Atg5, beclin1 and LC3 protein, and reduce the expression of p62 protein. In conclusion, the present study demonstrates that CMP exert a protective effect on DN in STZ-treated mice possibly via activation of autophagy.
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http://dx.doi.org/10.1039/c9fo00957dDOI Listing
August 2019

[Materiamedica literature study on medicinal properties and utility of four kinds of Alpinia Chinese medicines].

Zhongguo Zhong Yao Za Zhi 2018 Jul;43(13):2648-2653

Guangxi University of Traditional Chinese Medicine, Nanning 530200, China.

In order to explore the correlation between the medicinal properties,efficacy and application in the same genetic relationship,explain the scientific connotation of the medicinal properties and effects of traditional Chinese medicines(TCM),promote the academic development of the theory of traditional Chinese medicines,and provide reference for the research and development of the traditional Chinese medicines of a same genus. In this paper, a literature study of ancient and modern works of Chinese herbal medicine was conducted to investigate the correlation between the properties, meridians tropism, efficacy and application of Alpinia officinarum, A. katsumadai, Galangae Fructus and Alpinae Oxyphyllae Fructus, four kinds of Alpinia Chinese medicines.The results showed that the similar properties of these four kinds of Alpinia Chinese medicines included that they were acrid, warm,and mainly getting into the spleen and stomach channels; the similar efficacies included that dispelling cold,relieving pain,warming stomach,anti-nausea,anti-diarrheal,reinforcing spleen to promote digestion and other effects; in application aspects, the similarities were that they were all mainly used in treatment of catching cold or spleen deficiency induced by abdominal pain,vomiting,diarrhea,diet indigestion, etc. indicating that phylogenetic relationship was closely related with the herbal properties, efficacy and application. It is an effective way to explore,collate and research traditional Chinese medicine by using plant phylogenetic relationships in exploring the internal relations and laws of TCM theories,material bases, pharmacological effects and clinical applications, also with a strong maneuverability to explain their scientific connotation.
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http://dx.doi.org/10.19540/j.cnki.cjcmm.20180514.006DOI Listing
July 2018

Long-term acupuncture treatment has a multi-targeting regulation on multiple brain regions in rats with Alzheimer's disease: a positron emission tomography study.

Neural Regen Res 2017 Jul;12(7):1159-1165

National Institute of Complementary Medicine, Western Sydney University, Penrith NSW, Australia.

The acute effect of acupuncture on Alzheimer's disease, ., on brain activation during treatment, has been reported. However, the effect of long-term acupuncture on brain activation in Alzheimer's disease is unclear. Therefore, in this study, we performed long-term needling at (ST36) or a sham point (1.5 mm lateral to ST36) in a rat Alzheimer's disease model, for 30 minutes, once per day, for 30 days. The rats underwent F-fluorodeoxyglucose positron emission tomography scanning. Positron emission tomography images were processed with SPM2. The brain areas activated after needling at ST36 included the left hippocampus, the left orbital cortex, the left infralimbic cortex, the left olfactory cortex, the left cerebellum and the left pons. In the sham-point group, the activated regions were similar to those in the ST36 group. However, the ST36 group showed greater activation in the cerebellum and pons than the sham-point group. These findings suggest that long-term acupuncture treatment has targeted regulatory effects on multiple brain regions in rats with Alzheimer's disease.
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http://dx.doi.org/10.4103/1673-5374.211197DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5558497PMC
July 2017

Attenuated synovial fluid ghrelin levels are linked with cartilage damage, meniscus injury, and clinical symptoms in patients with knee anterior cruciate ligament deficiency.

Discov Med 2016 12;22(123):325-335

Department of Rehabilitation Medicine, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510630, China.

Background: The meniscus injury and post-traumatic knee osteoarthritis (PTOA) following anterior cruciate ligament (ACL) lesions often cause great burdens to patients. Ghrelin, a recently identified 28-amino-acid peptide, has been shown to inhibit inflammation and perform as a growth factor for chondrocyte.

Objective: This study was aimed at investigating ghrelin concentration in synovial fluid and its association with the degree of meniscus injury, articular degeneration, and clinical severity in patients suffering from anterior cruciate ligament (ACL) deficiency.

Methods: 61 ACL deficiency patients admitted to our hospital were drafted in the current study. The Noyes scale and Mankin scores were used to assess articular cartilage damage arthroscopically and histopathologically, respectively. The Lysholm scores and International Knee Documentation Committee (IKDC) subjective scores were utilized to evaluate the clinical severity. The radiological severity of meniscus injury was assessed by MR imaging. Serum and synovial fluid ghrelin levels were determined using enzyme linked immunosorbent assay (ELISA). The cartilage degradation markers collagen type II C-telopeptide (CTX-II) and cartilage oligomeric matrix protein (COMP) in addition to inflammatory markers interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α) were also examined. Receiver operating characteristic (ROC) curve was performed and the area under curve (AUC) was calculated to assess the diagnostic value of ghrelin levels for the prediction of the MRI grading for meniscus injury by comparing with other biomarkers.

Results: SF ghrelin levels were positively related to Lysholm and IKDC scores. PTOA patients with grade 3 showed significantly decreased levels of ghrelin in SF compared with those with grade 2. The ghrelin levels in SF were negatively related to MRI signal grades for meniscus injury. SF ghrelin levels were also inversely associated with Noyes scale and Mankin scores, and levels of inflammation markers IL-6, TNF-α, and degradation biomarkers COMP and CTX-II. ROC analysis showed that ghrelin was more valuable for severe meniscus injury diagnosis by MRI imaging.

Conclusions: Synovial fluid ghrelin levels demonstrated an independent and negative association with meniscus injury, cartilage damage, and clinical severity in patients with ACL deficiency. Ghrelin in SF might serve as a potential cartilage protective factor for PTOA. Local application of ghrelin as a potential adjuvant therapy for delaying cartilage degeneration following ACL injury deserves further study.
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December 2016

Acupuncture for ischemic stroke: cerebellar activation may be a central mechanism following Deqi.

Neural Regen Res 2015 Dec;10(12):1997-2003

College of Acupuncture and Massage, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China.

The needling sensation of Deqi during acupuncture is a key factor of influencing acupuncture outcome. Recent studies have mainly focused on the brain function effects of Deqi in a physiological state. Functional magnetic resonance imaging (fMRI) on the effects of acupuncture at Waiguan (SJ5) in pathological and physiological states is controversial. In this study, 12 patients with ischemic stroke received acupuncture at Waiguan (SJ5) and simultaneously underwent fMRI scanning of the brain, with imaging data of the activated areas obtained. Based on the patient's sensation, imaging data were allocated to either the Deqi group or non-Deqi group. In the Deqi group, the activated/deactivated areas were the left superior temporal gyrus (BA39)/right anterior lobe of the cerebellum and left thalamus. In the non-Deqi group, the activated areas included the medial frontal gyrus of the right frontal lobe (BA11), right limbic lobe (BA30, 35), and left frontal lobe (BA47), while the only deactivated area was the right parietal lobe (BA40). Compared with the non-Deqi group, the Deqi group exhibited marked activation of the right anterior lobe of the cerebellum and right limbic lobe (BA30). These findings confirm that the clinical effect of Deqi during acupuncture is based on brain functional changes. Cerebellar activation may be one of the central mechanisms of acupuncture in the treatment of ischemic stroke.
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http://dx.doi.org/10.4103/1673-5374.172318DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4730825PMC
December 2015

Rapid Onset of the Effects of Combined Selective Serotonin Reuptake Inhibitors and Electroacupuncture on Primary Depression: A Meta-Analysis.

J Altern Complement Med 2016 Jan 14;22(1):1-8. Epub 2015 Dec 14.

3 Department of Rehabilitation Medicine, Third Affiliated Hospital of Southern Medical University , Guangzhou, Guangdong, People's Republic of China .

Objectives: To evaluate the efficacy and safety of combined selective serotonin reuptake inhibitors (SSRIs) and electroacupuncture therapies for the early treatment of primary depression.

Methods: Randomized controlled trials (RCTs) were analyzed to compare therapy combining SSRIs and electroacupuncture to SSRI therapy alone. The RCTs were identified by searching, among others, PubMed, the Cochrane Library, the Chinese National Knowledge Infrastructure, the Chongqing VIP database for Chinese Technical Periodicals, WANFANG DATA, and the Chinese Biological Medical Literature Database. Scores from Self-Rated Depression Scale (SDS), the Hamilton Depression Scale (HAMD), the Side Effect Rating Scale (SERS), and the Treatment Emergent Symptom Scale (TESS) were analyzed and coded by two independent investigators and used to evaluate the safety and efficacy of treatment. Statistical analyses were performed using RevMan 5.2 software.

Results: Six RCTs were analyzed. The meta-analysis revealed that the combined therapy of SSRIs and electroacupuncture were associated with superior scores on the HAMD, SDS, and SERS measures compared with SSRIs alone after 1-4 weeks of treatment: HAMD scores, mean difference (MD)(1 week), 2.32 (95% confidence interval [CI](1 week), 1.47-3.16, p(1 week)<0.00001); MD(2 weeks), 2.65 (95% CI(2 weeks), 1.81- 3.50, p(2 weeks)<0.00001); MD(4 weeks), 2.70 (95% CI(4 weeks), 1.90-3.51, p(4 weeks)<0.00001); SDS scores: MD(1 week), 3.13 (95% CI(1 week), 1.22-5.03, p(1 week) = 0.001); MD(2 weeks), 4.05 (95% CI(2 weeks), 0.22-7.87, p(2 weeks) = 0.04); MD(4 weeks), 5.02 (95% CI(4 weeks), 1.61-8.43, p(4 weeks) = 0.004); SERS scores: MD(2 weeks), 2.20 (95% CI(2 weeks), 1.43-2.96, p(2 weeks)<0.00001); MD(4 weeks), 2.12 (95% CI(4 weeks), 1.42-2.83, p(4 weeks)<0.00001). However, two of the aforementioned outcomes were rated as medium quality because of heterogeneity, as assessed using the Grading of Recommendations Assessment, Development and Evaluation system.

Conclusions: The available evidence suggests that the early treatment of primary depression using both SSRI and electroacupuncture therapies is more efficient than treatments with SSRIs alone and leads to a better and earlier control of depressive symptoms.
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http://dx.doi.org/10.1089/acm.2015.0114DOI Listing
January 2016

Brain activation and inhibition after acupuncture at Taichong and Taixi: resting-state functional magnetic resonance imaging.

Neural Regen Res 2015 Feb;10(2):292-7

School of Acupuncture and Tuina, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China.

Acupuncture can induce changes in the brain. However, the majority of studies to date have focused on a single acupoint at a time. In the present study, we observed activity changes in the brains of healthy volunteers before and after acupuncture at Taichong (LR3) and Taixi (KI3) using resting-state functional magnetic resonance imaging. Fifteen healthy volunteers underwent resting-state functional magnetic resonance imaging of the brain 15 minutes before acupuncture, then received acupuncture at Taichong and Taixi using the nail-pressing needle insertion method, after which the needle was retained in place for 30 minutes. Fifteen minutes after withdrawal of the needle, the volunteers underwent a further session of resting-state functional magnetic resonance imaging, which revealed that the amplitude of low-frequency fluctuation, a measure of spontaneous neuronal activity, increased mainly in the cerebral occipital lobe and middle occipital gyrus (Brodmann area 18/19), inferior occipital gyrus (Brodmann area 18) and cuneus (Brodmann area 18), but decreased mainly in the gyrus rectus of the frontal lobe (Brodmann area 11), inferior frontal gyrus (Brodmann area 44) and the center of the posterior lobe of the cerebellum. The present findings indicate that acupuncture at Taichong and Taixi specifically promote blood flow and activation in the brain areas related to vision, emotion and cognition, and inhibit brain areas related to emotion, attention, phonological and semantic processing, and memory.
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http://dx.doi.org/10.4103/1673-5374.152385DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4392679PMC
February 2015

Lateralisation of cerebral response to active acupuncture in patients with unilateral ischaemic stroke: an fMRI study.

Acupunct Med 2013 Sep 3;31(3):290-6. Epub 2013 Jul 3.

School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.

Objective: Acupuncture is beneficial in treating stroke neuropsychiatric symptoms. The present study aimed to identify functional brain response to active acupuncture in patients with unilateral ischaemic stroke using functional MRI (fMRI).

Methods: A total of 10 patients aged 47-65 years with left hemispheric ischaemic stroke received single-session manual acupuncture at the TE5 point of the affected (right) forearm. A 6-min tactile control procedure in which an acupuncture needle tip was alternately touched and removed from the skin at the acupuncture point for 30 s each was performed first, followed by active acupuncture in a blocking paradigm consisting of six 30-s twist blocks of rotation interspersed between six 30-s blocks of rest. A whole brain scan was simultaneously conducted on a 3.0-T imager. Activated and deactivated brain regions during tactile stimulation and active acupuncture relative to rest were obtained via group analysis.

Results: Compared to tactile stimulation, needling with twist manipulation modulated many more widespread brain areas. All the brain areas activated and deactivated by active acupuncture relative to tactile stimulation were distributed in the primary sensorimotor and medial frontal cortex of the unaffected, but not the affected hemisphere.

Conclusions: Active acupuncture results in lateralisation of functional cerebral response to the contralateral unaffected hemisphere in patients with unilateral stroke. This lateralisation may represent an effect of acupuncture in enhancing a compensatory process by redistributing functions into the intact cortex, particularly in the unaffected hemisphere.
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http://dx.doi.org/10.1136/acupmed-2012-010299DOI Listing
September 2013

A 6-week randomized controlled trial with 4-week follow-up of acupuncture combined with paroxetine in patients with major depressive disorder.

J Psychiatr Res 2013 Jun 14;47(6):726-32. Epub 2013 Mar 14.

School of Traditional Chinese Medicine, Southern Medical University, 1023 Shatai Road, Guangzhou, Guangdong 510515, China.

Acupuncture possesses the antidepressant potential. In this 6-week randomized controlled trial with 4-week follow-up, 160 patients with major depressive disorder (MDD) were randomly assigned to paroxetine (PRX) alone (n = 48) or combined with 18 sessions of manual acupuncture (MA, n = 54) or electrical acupuncture (EA, n = 58). Treatment outcomes were measured mainly using the 17-item Hamilton Depression Rating Scale (HAMD-17), Self-rating Depression Scale (SDS), clinical response and remission rates. Average PRX dose taken and proportion of patients who required an increased PRX dose due to symptom aggravation were also obtained. Both additional MA and EA produced a significantly greater reduction from baseline in score on HAMD-17 and SDS at most measure points from week 1 through week 6 compared to PRX alone. The clinical response was markedly greater in MA (69.8%) and EA (69.6%) groups than the group treated with PRX alone (41.7%, P = 0.004). The proportion of patients who required an increase dose of PRX due to symptom aggravation was significantly lower with MA (5.7%) and EA (8.9%) than PRX alone (22.9%, P = 0.019). At 4 weeks follow-up after completion of acupuncture treatment, patients with EA, but not MA, continued to show significantly greater clinical improvement. Incidence of adverse events was not different in the three groups. Our study indicates that acupuncture can accelerate the clinical response to selective serotonin reuptake inhibitors (SSRIs) and prevent the aggravation of depression. Electrical acupuncture may have a long-lasting enhancement of the antidepressant effects (Trial Registration: ChiCTR-TRC-08000278).
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http://dx.doi.org/10.1016/j.jpsychires.2013.02.004DOI Listing
June 2013

[Global improvement in agitated depression treated with the alliance therapy of acupuncture and seroxat and the observation of the quality of life].

Zhongguo Zhen Jiu 2012 Dec;32(12):1063-9

College of TCM, Southern Medical University, Guangzhou 510515, Guangdong Province, China.

Objective: To compare the differences in the efficacy on agitated depression among the alliance therapy of acupuncture and seroxat, the alliance therapy of electroacupuncture and seroxat and the simple application of seroxat.

Methods: One hundred and two cases were randomized into a medication group, a conventional acupuncture + medication group and an electroacupuncture + medication group, 34 cases in each one. In the medication group, seroxat was prescribed for oral administration, once per day. In the conventional acupuncture + medication group, seroxat was applied in combination with the conventional acupuncture therapy, in which, Baihui (GV 20) and Yintang (EX-HN 3) were taken as the main acupoints. In the electroacupuncture + medication group, seroxat was applied in combination with electroacupuncture, in which, on the basic therapeutic program as the conventional acupuncture + medication group, the electric stimulation was attached to Baihui (GV 20) and Yintang (EX-HN 3). Acupuncture was applied once every two days, the treatment of 6 weeks made one session and one session treatment was required in the research. Before and after treatment, the clinical global impression (CGI) and the World Health Organization Quality of Life-BREF (WHOQOL-BREF) were adopted for the assessment in each group.

Results: (1) CGI comparison: the severity of illness (SI) after treatment was all alleviated significantly for the patients in three groups as compared with that before treatment (all P < 0.001), but the difference was not significant statistically among groups (P > 0.05). The global improvement (GI) was different significantly among three groups (P < 0.05), in which GI in the electroacupuncture + medication group was the best, that in the conventional acupuncture + medication group was taken second place. The total improvement rates were 100.0% (29/29), 96.9% (31/32) and 93.5% (29/31) separately. The difference in the efficacy index (EI) was not significant statistically among three groups (P > 0.05). Concerning to the adverse events, there were 1 case (mild insomnia) in the medication group, 1 case (moderate anorexia) in the conventional acupuncture + medication group and 2 cases (mild insomnia and dry mouth) in the electroacupuncture + medication group. (2) WHOQOL-BREF comparison: compared with those before treatment, all the indices in the electroacupuncture + medication group were increased significantly after treatment (all P < 0.01); except the indices in the physiological field, all the other indices were improved in the conventional acupuncture + medication group after treatment (P < 0.01, P < 0.05); the scores only in the physiological field and social field were higher significantly than those before treatment in the medication group (P < 0.01, P < 0.05). After treatment, the statistically significant difference was displayed only in the psychological field among three groups (P < 0.05), in which, the improvement in the electroacupuncture + medication group was the best, that in the conventional acupuncture + medication group was taken second place and that in the medication group was the worst.

Conclusion: Either the alliance therapy of acupuncture and medication or the simple oral administration of seroxat improves the overall efficacy and the quality of life in the patients with agitated depression. The efficacy of the alliance therapy of acupuncture and medication is superior to the simple oral administration of seroxat and the efficacy of electroacupuncture is superior to the conventional acupuncture therapy.
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December 2012

[Clinical comparative study on the influence of acupoint sticking therapy in dog days and in non-dog days to the quality of life of allergic rhinitis patients].

Zhongguo Zhen Jiu 2012 Jan;32(1):31-4

School of TCM, Southern Medical University, Guangzhou 510515, Guangdong Province, China.

Objective: To observe and compare the influence of acupoint sticking therapy in dog days and in non-dog days to the quality of life of allergic rhinitis patients.

Methods: Fifty-five cases were divided into group A (the acupoint sticking therapy in dog days group, 28 cases) and group B (the acupoint sticking therapy in non-dog day group, 27 cases) randomly. The acupoint sticking therapy description (Dazhui (GV 14), Fengmen (BL 12), Feishu (BL 13) etc. was used in both groups. Five times of acupoint sticking therapy were given to patients in group A during dog days in 2010, while another 5 times of acupoint sticking therapy were given to patients in group B before the dog days. The Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) was used to evaluate the effects before, after and half a year after treatment.

Results: The scores of behavior problems, nasal symptoms and quality of life in RQLQ of both groups all decreased after treatment (all P < 0.01). The score of emotion reaction of group A in the follow-up period decreased compared with that before treatment (P < 0.05). The scores of non-nasal-or-ocular symptoms, ocular symptoms and emotion reaction after treatment and in the follow-up period all decreased than those before treatment (P < 0.01, P < 0.05). The decreasing degrees of scores of non-nasal-or-ocular symptoms, ocular symptoms, emotion reaction and quality of life after treatment and in the follow-up period in group A were all greater than those in group B (P < 0.01, P < 0.05).

Conclusion: In the same season, both acupoint sticking therapy in dog days and in non-dog dags can improve the symptoms of allergic rhinitis, but the improving degree to quality of life in the method of acupoint sticking in dog days is greater.
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January 2012

[Thinkings on the key brain region activated by needling with the baseline state fMRI].

Zhongguo Zhen Jiu 2011 Apr;31(4):367-70

School of TCM, Southern Medical University, Guangzhou 510515, Guangdong Province, China.

After reviewing the literatures in recent years, it is of importance to investigate on the key brain region activated by needling with the baseline state fMRI in research of acupoint specificity and brain fMRI. It is valuable to define two ways to determine the key brain region: one is the so called Seek True, while the other one is the so called Prove Wrong, and some examples of applications of the two methods are given in order to prove that the methods are feasible on determining the key brain region.
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April 2011

[Professor OUYANG Qun's clinical experience on application of single point].

Zhongguo Zhen Jiu 2007 Nov;27(11):857-8

TCM School, Southern Medical University, Guangzhou 510515, China.

The clinical experience of Professor OUYANG Qun in using single acupoint includes treatment of Meniere's syndrome with Baihui (GV 20), optic neuritis with "Fengyan" (Extra point), painful heel with Xiaguan (ST 7), lymphoid tuberculosis with Quchi (LI 11), acute sore throat with Kongzui (LU 6), painful diseases with "Luolingwu" (Extra point), chest distress with "Kuanxiong" (Extra point), hordeolum with Feishu (BL 13), headache in menstrual period with Xuehai (SP 10), frozen shoulder with Tiaokou (ST 38), toothache with Waihuaijian (Extra point), occipital pain with Chengshan (BL 57) and vomiting with Yongquan (KI 1).
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November 2007
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