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| Electroacupuncture • J Altern Complement Med. 2005 Aug;11(4):653-61. |
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August 1, 2005 |
| Author / Title |
The effect of ting point (tendinomuscular meridians) electroacupuncture on thermal pain: a model for studying the neuronal mechanism of acupuncture analgesia. / Leung A, Khadivi B, Duann JR, Cho ZH, Yaksh T. |
| Abstract |
Objective: The aim of this study was to characterize the role of Ting points (TP) in acute pain management and its potential use in functional imaging studies by quantitatively assessing: (1) the change in peripheral thermal thresholds before and after the electroacupuncture (EA); and (2) the corresponding behavioral feedback of thermal pain stimulation and the de qi sensation of EA. Design: The study design was prospective. Settings/location: Healthy subjects were recruited for the study at the University of California, San Diego Medical Center. Subjects/interventions: Thirteen (13) healthy subjects were studied. Baseline thermal thresholds (cold and warm sensations and cold and hot pain) were measured at premarked testing sites along the medial aspects of bilateral lower extremities. Five (5) seconds of hot pain (HP) was delivered to the testing sites and the corresponding pain visual analog scale (VAS) scores were recorded. Thirty (30) seconds of EA was delivered via the SP1 and LR1 on the left lower extremities at 5 Hz via a 6-V square-wave stimulator. Outcome measures: The VAS scores of the HP and de qi sensation (tingling) during the EA were recorded. The thermal thresholds and VAS scores for the HP and de qi were obtained immediately and both 30 and 60 minutes after the EA. Adaptation testing was also carried out to assess the change in thermal thresholds and the VAS scores of HP without EA. Results: The warm thresholds of bilateral medial calves significantly increased (p < 0.01) after 30 seconds of EA stimulation. The HP VAS score reduced significantly at the ipsilateral calf during EA in comparison to preacupuncture and postacupuncture (p < 0.01) measurements. No significant change in thermal thresholds was noted in the adaptation paradigm. Conclusions: EA at the TP has an inhibitory effect on the C-fiber afferents. The analgesic benefit observed is most likely A-delta afferent mediated. Further correlation studies in functional imaging may provide defining data for the observed analgesic mechanism. |
| Conclusion |
EA at the TP has an inhibitory effect on the C-fiber afferents. The analgesic benefit observed is most likely A-delta afferent mediated. Further correlation studies in functional imaging may provide defining data for the observed analgesic mechanism. |
| Local |
Department of Anesthesiology, University of California, San Diego, La Jolla, CA., Anesthesia Pain and Palliative Medicine Service, VA San Diego Healthcare System, La Jolla, CA. |
| Web |
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=16131289&query_hl=21 |
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| Electroacupuncture • Zhongguo Zhong Xi Yi Jie He Za Zhi. 2005 Jul;25(7):637-9. |
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July 1, 2005 |
| Author / Title |
Effect of Governer Meridian electro-acupuncture on water channel aquaporin-4 in experimental spinal cord injured rats / Han QM, Xie J, Chai ST, Fang J, Liu Q. |
| Abstract |
OBJECTIVE: To investigate effects of electro-acupuncture (EA) on Du Meridian on the water channel aquaporin-4 (AQP-4) expression and hind limbs function recovery in experimental spinal cord injured rats. METHODS: One hundred and fifty SD rats were divided into the normal group, the model group and the EA group, with 50 rats in each group, modified Allen method was used to establish spinal cord injury model in the model and EA group. Rats in the EA group was EA on Dazhui and Ming men acupoints after modelling successfully. At the 1st, 3rd, 7th, 14th and 21th day after injury, the hind limbs function of rats was evaluated by BBB scales respectively, and the AQP-4 expression in spinal cord tissue was determined by immunohistochemistry technique and quantity analysed with image analyzer. RESULTS: At the 1st day after spinal cord injury, the AQP-4 expression was significantly increased in gray matter and white matter of spinal cord in the model group and the EA group, which reached the peak at the 3rd day, but showed significant difference between the two groups (P < 0.05), and the difference at the 7th, 14th and 21th day became more significant (P < 0.01). CONCLUSION: EA on Du Meridian can down-regulate AQP-4 expression after spinal cord injury, inhibit spinal cord edema for alleviating secondary spinal cord lesion, so as to protect the residual normal spinal cord tissues and promote the rebuilding of nervous tissues. |
| Conclusion |
EA on Du Meridian can down-regulate AQP-4 expression after spinal cord injury, inhibit spinal cord edema for alleviating secondary spinal cord lesion, so as to protect the residual normal spinal cord tissues and promote the rebuilding of nervous tissues. |
| Local |
The Third Hospital Affiliated to Guangzhou University of Traditional Chinese Medicine, Guangzhou. |
| Web |
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=16089144&query_hl=1 |
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| Electroacupuncture • Dig Dis Sci. 2005 Jul;50(7):1264-70. |
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July 1, 2005 |
| Author / Title |
Electroacupuncture reduces rectal distension-induced blood pressure changes in conscious dogs. / Iwa M, Strickland C, Nakade Y, Pappas TN, Takahashi T. |
| Abstract |
It has been shown that acupuncture relieves symptoms of abdominal pain and bloating in patients with irritable bowel syndrome (IBS). However, the mechanism of beneficial effects of acupuncture still remains unproven. The aim of the present study was to investigate the mechanisms of the antinociceptive effects of acupuncture in conscious dogs. We evaluated the increase in mean arterial blood pressure (MAP) caused by rectal distension as an index of visceral pain. Electroacupuncture (EA; 10 Hz) at ST-36 (lower leg), but not at BL-21 (back), significantly reduced the increase in MAP in response to rectal distension (30 and 40 cm3). The antinociceptive effect of EA at ST-36 was abolished by pretreatment with naloxone (a central and peripheral opioid receptor antagonist) but not by naloxone methiodide (a peripheral opioid receptor antagonist). These results suggest that EA at ST-36 may reduce visceral pain via central opioid pathway. Acupuncture may be useful to treat visceral hypersensitivity in IBS patients. |
| Conclusion |
These results suggest that EA at ST-36 may reduce visceral pain via central opioid pathway. Acupuncture may be useful to treat visceral hypersensitivity in IBS patients. |
| Local |
Department of Surgery, Duke University and Durham Veterans Affairs Medical Center, Durham, North Carolina 27705, USA. |
| Web |
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=16047470&query_hl=1 |
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| Electroacupuncture • Neurol Res. 2004 Oct;26(7):797-800. |
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| Author / Title |
Objectivation of cerebral effects with a new continuous electrical auricular stimulation technique for pain management. / Szeles JC, Litscher G. |
| Abstract |
AIMS: The electrical point stimulation system (P-STIM) reflects a new, miniaturized system for pain therapy through ear acupuncture. For this reason, ultrathin needles were applied at the ear. The needles stimulate the acupuncture areas at the ear using electrical impulses, which come from a little generator applied behind the acupunctured ear. METHODS: This study describes continuous, non-invasive measurements of near infrared spectroscopy (NIRS) and multidirectional transcranial Doppler sonography in two healthy females (aged 23 and 27 years) during stimulation with P-STIM, for the first time. RESULTS: The results of the pilot measurements have shown that electrical point stimulation using the new electrical stimulation system on eye acupuncture points is able to modulate the mean blood flow velocity (vm) of the supratrochlear artery. These effects were present using a stimulation frequency of 100 Hz. A lower increase in vm was found in the middle cerebral artery. In addition, stimulus induced, quantifiable and reproducible alterations of the regional cerebral NIRS parameters were be detected. CONCLUSION: For the first time, P-Stim allows intermittent ear acupuncture stimulation for up to several days in combination with complete mobility for the patient. |
| Conclusion |
The results of the pilot measurements have shown that electrical point stimulation using the new electrical stimulation system on eye acupuncture points is able to modulate the mean blood flow velocity (vm) of the supratrochlear artery. These effects were present using a stimulation frequency of 100 Hz. A lower increase in vm was found in the middle cerebral artery. In addition, stimulus induced, quantifiable and reproducible alterations of the regional cerebral NIRS parameters were be detected. CONCLUSION: For the first time, P-Stim allows intermittent ear acupuncture stimulation for up to several days in combination with complete mobility for the patient. |
| Local |
Department of Vascular Surgery, Medical University of Vienna, Austria |
| Web |
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15494125&query_hl=28 |
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| Electroacupuncture • J Appl Physiol. 2005 Mar;98(3):872-80. Epub 2004 Nov 5. |
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| Author / Title |
Afferent mechanisms underlying stimulation modality-related modulation of acupuncture-related cardiovascular responses. / Zhou W, Fu LW, Tjen-A-Looi SC, Li P, Longhurst JC. |
| Abstract |
Despite the use of acupuncture to treat a number of heart diseases, little is known about the mechanisms that underlie its actions. Therefore, we examined the influence of acupuncture on sympathoexcitatory cardiovascular responses to gastric distension in anesthetized Sprague-Dawley rats. Thirty minutes of low-current, low-frequency, (0.3-0.5 mA, 2 Hz) electroacupuncture (EA), at P 5-6, S 36-37, and H 6-7 overlying the median, deep peroneal, and ulnar nerves significantly decreased reflex pressor responses by 40, 39, and 44%, respectively. In contrast, sham acupuncture involving needle insertion without stimulation at P 5-6 or 30 min of EA at LI 6-7 acupoints overlying the superficial radial nerve did not attenuate the reflex. Similarly, EA at P 5-6 using 40- or 100-Hz stimulation frequencies did not inhibit the reflex. Compared with EA at P 5-6, EA at two sets of acupoints, including P 5-6 and S 36-37, did not lead to larger inhibition of the reflex. Two minutes of manual acupuncture (MA; 2 Hz) at P 5-6 every 10 min for 30 min inhibited the reflex cardiovascular pressor response by 33%, a value not significantly different from 2-Hz EA at P 5-6. Single-unit afferent activity was not different between electrical stimulation (ES) and manual stimulation. However, 2-Hz ES activated more somatic afferents than 10- or 20-Hz ES. These data suggest that, although the location of acupoint stimulation and the frequency of stimulation determine the extent of influence of EA, there is little difference between low-frequency EA and MA at P 5-6. Furthermore, simultaneous stimulation using two acupoints that independently exert strong effects did not lead to an additive or a facilitative interaction. The similarity of the responses to EA and MA and the lack of cardiovascular response to high-frequency EA appear to be largely a function of somatic afferent responses. |
| Conclusion |
These data suggest that, although the location of acupoint stimulation and the frequency of stimulation determine the extent of influence of EA, there is little difference between low-frequency EA and MA at P 5-6. Furthermore, simultaneous stimulation using two acupoints that independently exert strong effects did not lead to an additive or a facilitative interaction. The similarity of the responses to EA and MA and the lack of cardiovascular response to high-frequency EA appear to be largely a function of somatic afferent responses. |
| Local |
Department of Medicine, College of Medicine, University of California, Irvine, CA 92697, USA |
| Web |
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15531558&query_hl=28 |
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| Electroacupuncture • Am J Chin Med. 2005;33(4):525-33. |
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| Author / Title |
Electroacupuncture therapy for weight loss reduces serum total cholesterol, triglycerides, and LDL cholesterol levels in obese women. / Cabioglu MT, Ergene N. |
| Abstract |
Our purpose in this study was to investigate the effect of acupuncture therapy on body weight and on levels of the serum total cholesterol, triglyceride, high-density lipoprotein (HDL) cholesterol and low-density lipoprotein (LDL) cholesterol in obese women. Fifty-five women were studied in three groups as follows: (1) control group (n = 12; mean age = 43.3 +/- 4.3, and mean body mass index {BMI} = 32.2 +/- 3.4); (2) electroacupuncture (EA) (n = 22; mean age = 39.8 +/- 5.3, and BMI = 34.8 +/- 3.3); and (3) diet restriction (n = 21; mean age = 42.7 +/- 3.9, and BMI = 34.9 +/- 3.3). EA was performed using the ear points, Sanjiao (Hungry) and Shen Men (Stomach), and the body points, LI 4, LI 11, St 25, St 36, St 44 and Liv 3, once daily, for 30 minutes, for 20 days, whereas patients on diet restriction had a 1425 Kcal diet program, that consisted of 1425 Kcal daily for 20 days. There was a 4.8% weight reduction in patients with EA application, whereas patients on diet restriction had a 2.5% weight reduction. There were significant decreases in total cholesterol and triglyceride levels in EA and diet groups compared with the control group (p < 0.05 in both cases). Furthermore, there was a decrease in LDL levels in the EA group compared with the control group (p < 0.05). No significant changes could be found in HDL levels among the three groups. Our results suggest that EA application in obese women may decrease the serum total cholesterol, triglyceride, and LDL cholesterol levels by increasing the serum beta endorphin level. This lipolytic effect of EA may also reduce the morbidity of obesity by mobilizing the energy stores that result in weight reduction. |
| Conclusion |
Our results suggest that EA application in obese women may decrease the serum total cholesterol, triglyceride, and LDL cholesterol levels by increasing the serum beta endorphin level. This lipolytic effect of EA may also reduce the morbidity of obesity by mobilizing the energy stores that result in weight reduction. |
| Local |
Cabioglu Acupuncture Treatment Clinic, Selcuklu 42040, Konya, Turkey. |
| Web |
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=16173527&query_hl=21 |
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