This blog is to share the latest research and development of acupuncture and raise the awareness of alternative treatments for your conditions, and is for information only.

Monday, 10 March 2014

Acupuncture reduces high blood pressure

Approxiamately 25% of the adult population in the UK have hypertension (i.e. a blood pressure of 140/90mmHg or more), and over half of those over the age of 60s are affected according to the report published by National Clinical Guideline Centre in 2011. The prevalence is strongly influenced by age and lifestyle factors. Raised systolic pressure is the more dominant feature of hypertension in older patients, while raised diastolic pressure is more common in younger patients (i.e. those under 50 years of age). High blood pressure can be lowered by several classes of drugs and by such lifestyle changes as salt intake restriction, exercise and weight loss. Lifestyle interventions, however, are difficult to achieve and even more difficult to maintain. Drug therapy is costly, fraught with compliance, and accompanied by unwanted side effects.

Acupuncture is effective in lowing blood pressure. Professor Longhurst and his colleagues (Susan-Samueli Center for Integrative Medicine, University of California, USA) have focused on acupuncture blood regulation research over past 20 years. They found that acupuncture stimulation at acupoints such as Neiguan, Jianshi, Zusanli and Shangjuxu activated somatic input to different brain regions, leading to prolonged release of opioids and other neurotransmitters, and rebalancing autonomic outflow , guiding to a long-last reduction of blood pressure. Acupuncture treatment on above acupoints once weekly for two months appears to reduce blood pressure of subjects with mild to moderate hypertension. The response is slow in onset (occurring 2-4 weeks) and prolonged in duration, with decrease that can lasts days or weeks depending on how many times it is applied. Normally 1 or 2 times acupuncture treatment per month will maintain normal blood pressure after blood pressure of subject is back to normal.
   
Reference:
J Longhurst et al., (2013) Acupuncture Regulation of Blood Pressure: Two Decades of Research. In BY Zeng, K Zhao & FR Liang (Eds), Neurobiology of Acupuncture (Int Rev Neurobiol. Vol. 111: pp. 257-270). New York: Academic Press.
http://www.ncbi.nlm.nih.gov/pubmed/24215927

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