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Home > Newsletters > January 2008 > Recent Research

Points - Recent Research

Effects of Electroacupuncture on Gastric Motility and Heart Rate Variability in Conscious Rats

Observation on Therapeutic Effect of Acupuncture at Point "Xiajiquan" on Muscular Strength of Finger after Apoplexy 

The Effects of Rhizoma Curculiginis and Rhizoma Drynariae Extracts on Bones


Effects of Electroacupuncture on Gastric Motility and Heart Rate Variability in Conscious Rats

Imai K, et al. Department of Surgery, Duke University, Durham, North Carolina, United States.

To clarify the mechanism of site-specific effects of acupuncture on gastric motor function, we studied the simultaneous recording of gastric motility and electrocardiogram (ECG) for heart rate variability (HRV) analysis in conscious rats. Gastric motility and ECG were recorded before, during and after electroacupuncture (EA) at ST-36 (hind limb) or ST-25 (abdomen). EA at ST-36 significantly increased gastric motility and decreased the ratio of low frequency (LF)/high frequency (HF) of the HRV analysis. In contrast, EA at ST-25 significantly inhibited gastric motility and increased LF/HF ratio. There was a significant correlation observed between the changes of gastric motility and LF/HF ratio in response to EA. It is suggested that the stimulatory effect of EA at ST-36 on gastric motility is associated with its stimulatory effect on vagal activity. The inhibitory effect of EA at ST-25 on gastric motility is associated with its stimulatory effect on the sympathetic nerve activity.

Auton Neurosci. 2007 Dec 14

Source PubMed

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Observation on Therapeutic Effect of Acupuncture at Point "Xiajiquan" on Muscular Strength of Finger after Apoplexy

Hu ML, et al. Department of Acup-Moxibustion and Massage, Gansu College of TCM, Lanzhou 730000, China. humeilin2008@163.com

OBJECTIVE: To approach to the best therapy for recovery of fingers function after apoplexy. METHODS; One hundred and twenty-three cases were randomly divided into an observation group of 63 cases and a control group of 60 cases. The control group were treated by acupuncture at Quchi (LI 11), Shousanli ( LI 10), Waiguan (TE 5), etc., and the observation group by acupuncture at point "Xiajiquan" besides the acupoints for the control group. After treatment of 10 sessions, the therapeutic effects were assessed. RESULTS: The cured and markedly effective rate was 74.6% in the observation group and 40.0% in the control group, the observation group being significantly better than the control group (P < 0.05). CONCLUSION: Point "Xiajiquan" has a better therapeutic effect on derivation of finger muscular strength.

Zhongguo Zhen Jiu. 2007 Nov;27(11):813-4.

Source: PubMed

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The Effects of Rhizoma Curculiginis and Rhizoma Drynariae Extracts on Bones

Wong RW, Rabie B, Bendeus M, Hagg U.

ABSTRACT: BACKGROUND: Rhizoma Curculiginis (Xianmao) and Rhizoma Drynariae (Gusuibu) are aYang-tonifyinga traditional Chinese herbal medicines used to strengthen bones. This investigation aims to assess the systemic effect of extracts of Rhizoma Curculiginis and Rhizoma Drynariae on bone histomorphology and formation, and their local effect on bone healing. METHODS: For the investigation of the systemic effect, thirty 8-week-old male BALB/c mice were divided into three groups: (1) control group, ten mice fed daily with distilled water; (2) Rhizoma Curculiginis group, ten mice fed daily with distilled water mixed with Rhizoma Curculiginis extract; (3) Rhizoma Drynarie group, ten mice fed daily with distilled water mixed with Rhizoma Drynarie extract. The mice were fed for five weeks before sacrifice. Twenty micro-tomographic slices with an increment of 0.25 mm were prepared to cover the proximal end of the left tibia of each mouse. Quantitative morphometry of the bone structure was performed. For the investigation of the local effect on bone healing, two bone defects (5x10 mm) were created in the parietal bone of each of the three New Zealand white rabbits. Two defects in the first animal were grafted with collagen matrix with Rhizoma Curculiginis extract; two defects in the second animal were grafted with collagen matrix with Rhizoma Drynarie extract; two defects in the third (control) animal were grafted with collagen matrix alone. The animals were sacrificed on day 14 and the defects were dissected and prepared for histological and ultrastructural assessment. RESULTS: Rhizoma Curculiginis and Rhizoma Drynariae extracts altered the bone histomorphology, both increasing the trabecular number by 10% (P=0.002). Rhizoma Curculiginis extract increased bone density by 3.13% (P=0.122) and Rhizoma Drynariae extract increased bone density by 6.45% (P=0.005). Both Rhizoma Curculiginis and Rhizoma Drynariae extracts induced new bone formation on the margins of the defects. CONCLUSION: Two 'Yang-tonifyinga herbs, Rhizoma Curculiginis and Rhizoma Drynariae, were demonstrated to have systemic effects on bone histomorphology and formation as well as local bone healing.

Chin Med. 2007 Dec 19;2(1):13

Source: PubMed

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