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Subject:	[Health_and_Healing] Cup of mint tea is an effective painkiller/ Green tea 'slows prostate cancer' / Pain 'linked with low vitamin D'
Date:	Fri, 28 May 2010 23:35:13 +1200
From:	Misty <misty8@xtra.co.nz>
Reply-To:	Health_and_Healing@yahoogroups.com

Cup of mint tea is an effective painkiller

http://news.bbc.co.uk/2/hi/health/8373791.stm

Graciela Rocha with one of her Brazilian mint plants

A cup of Brazilian mint tea has pain relieving qualities to match those of commercially available analgesics, a study suggests.

Hyptis crenata has been prescribed by Brazilian healers for millennia to treat ailments from headaches and stomach pain to fever and flu.

Working on mice, a Newcastle University team has proved scientifically that the ancient medicine men were right.

The study is published in the journal Acta Horticulturae.

In order to mimic the traditional treatment as closely as possible, the Newcastle team carried out a survey in Brazil to find out how the medicine is typically prepared and how much should be consumed.

The most common method was to produce a decoction. This involves boiling the dried leaves in water for 30 minutes and allowing the liquid to cool before drinking it as a tea.

The taste isn't what most people here in the UK would recognize as a mint

Graciela Rocha
Newcastle University

The team found that when the mint was given at a dose similar to that prescribed by traditional healers, the medicine was as effective at relieving pain as a synthetic aspirin-style drug called Indometacin.

They plan to launch clinical trials to find out how effective the mint is as a pain relief for people.

Lead researcher Graciela Rocha said: "Since humans first walked the Earth we have looked to plants to provide a cure for our ailments - in fact it is estimated more than 50,000 plants are used worldwide for medicinal purposes.

"Besides traditional use, more than half of all prescription drugs are based on a molecule that occurs naturally in a plant.

"What we have done is to take a plant that is widely used to safely treat pain and scientifically proven that it works as well as some synthetic drugs.

"Now the next step is to find out how and why the plant works."

Graciela is Brazilian and remembers being given the tea as a cure for every childhood illness.

'Interesting research'

She said: "The taste isn't what most people here in the UK would recognize as a mint.

"In fact it tastes more like sage which is another member of the mint family.

"Not that nice, really, but then medicine isn't supposed to be nice, is it?"

Dr Beverly Collett, chair of the Chronic Pain Policy Coalition, said: "Obviously further work needs to be done to identify the molecule involved, but this is interesting research into what may be a new analgesic for the future.

"The effects of aspirin-like substances have been known since the ancient Greeks recorded the use of the willow bark as a fever fighter.

"The leaves and bark of the willow tree contain a substance called salicin, a naturally occurring compound similar to acetylsalicylic acid, the chemical name for aspirin."

The research is being presented at the International Symposium on Medicinal and Nutraceutical Plants in New Delhi, India.

http://news.bbc.co..uk/2/hi/health/8108831.stm

Green tea 'slows prostate cancer'

Green tea has already been linked to health benefits

A chemical found in green tea appears to slow the progression of prostate cancer, a study has suggested.

Green tea has been linked to a positive effect on a wide range of conditions, including heart disease, cancer and Alzheimer's disease.

The research, in the US journal Cancer Prevention Research, found a significant fall in certain markers which indicate cancer development.

A UK charity said the tea might help men manage low-risk tumours.

This could mean completely avoiding, in some cases, any of the more usual medical interventions and their associated side effects

John Neate, The Prostate Cancer Charity

Although previous studies have shown benefits from drinking green tea - including some positive findings in relation to prostate cancer, there have been mixed results.

In this study, Philadelphia-based researchers tested a compound called Polyphenon E.

They were looking for a number of biomarkers - molecules - including vascular endothelial growth factor (VEGF) and hepatocyte growth factor (HGF) which are indicators of developing cancer.

They also looked for prostate specific antigen (PSA) - a protein only found in the prostate. Levels can rise if cancer is present.

'12 cups'

The study included 26 men, aged 41 to 72 years, who had been diagnosed with prostate cancer and who were scheduled for radical prostate surgery.

Patients took four capsules containing Polyphenon E for an average of 34 days, up until the day before surgery - the equivalent of around 12 cups of normally brewed concentrated green tea.

The study found a significant reduction in levels of HGF, VEGF and PSA, with some patients demonstrating reductions of more than 30%.

Dr James Cardelli, from the Feist-Weiller Cancer Center, who led the study, said the compound, which was provided by the company Polyphenon Pharma, "may have the potential to lower the incidence and slow the progression of prostate cancer."

There were only a few reported side effects associated with this study, and liver function remained normal.

Dr Cardelli said: "We think that the use of tea polyphenols alone or in combination with other compounds currently used for cancer therapy should be explored as an approach to prevent cancer progression and recurrence."

"There is reasonably good evidence that many cancers are preventable, and our studies using plant-derived substances support the idea that plant compounds found in a healthy diet can play a role in preventing cancer development and progression."

'Keep progression at bay'

John Neate, chief executive of the Prostate Cancer Charity, said: "There have been several studies into green tea and its potential benefits, but there is, as yet, no conclusive evidence.

"The results of this study do suggest that there is merit in further research into the effects of extracts of green tea, both in relation to its impact on the prevention of prostate cancer and in controlling progression in men already diagnosed with the disease, as was investigated in this instance."

"These initial positive findings could indicate that green tea could have a place in 'active surveillance', where a slow-growing, low risk tumour is monitored for changes and men want to take something which could help keep progression at bay.

"Potentially, this could mean completely avoiding, in some cases, any of the more usual medical interventions and their associated side effects."

http://news.bbc.co..uk/2/hi/health/7553833.stm

Pain 'linked with low vitamin D'

Severe vitamin D deficiency leads to osteomalacia

Low levels of the sunshine vitamin, vitamin D, may contribute to chronic pain among women, scientists believe.

The link does not apply to men, suggesting hormones may be involved, according to a study published in the Annals of Rheumatic Diseases said.

The team from the Institute of Child Health in London said studies were now needed to see if vitamin D supplements can guard against chronic pain.

About one in 10 people are affected by chronic pain at any one time in the UK.

The causes are not well understood and much of the focus to date has been on emotional factors.

Dr Elina Hyppönen and colleagues believe, at least in women, vitamin D levels could play a role in some cases of chronic pain.

Sunshine vitamin

The nutrient, essential for healthy bones, is produced in the body when exposed to sunlight and is also found in oily fish, egg yolks and margarine.

Among the 7,000 men and women aged 45 from across England, Scotland and Wales that they studied, those who were smokers, non-drinkers, the overweight and the underweight all reported higher rates of chronic pain.

Among the women, vitamin D levels also appeared to be important.

This finding was not explained by gender differences in lifestyle or social factors, such as levels of physical activity and time spent outdoors, say the authors.

Women with vitamin D levels between 75 and 99 mmol/litre - a level deemed necessary for bone health - had the lowest rates of this type of pain, at just over 8%.

Women with levels of less than 25 mmol/litre had the highest rates, at 14.4%.

Severe lack of vitamin D in adults can lead to the painful bone disease osteomalacia.

But the researchers said osteomalacia did not account for their findings.

Dr Hyppönen said work was needed to evaluate whether vitamin D supplements could help prevent chronic pain.

In the meantime, she advised: "If I had chronic pain I would certainly check I was getting enough vitamin D."

Kate MacIver of the Pain Research Institute at Liverpool University cautioned: "Taking too high a dose of Vitamin D supplements as a means of preventing or treating chronic pain could result in Vitamin D toxicity and high blood calcium levels."

Most people should be able to get all the vitamin D they need from their diet and by getting a little sun.

However, if you are pregnant or breastfeeding you should take 10 micrograms (0.01 mg) of vitamin D each day, the Food Standards Agency recommends.

Older people should also consider taking 10 micrograms (0.01 mg) of vitamin D each day.

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