Age-old remedies using white tea, witch hazel and rose may be beneficial, study suggests

ScienceDaily (Dec. 1, 2011) — Age-old remedies could hold the key to treating a wide range of serious medical problems, as well as keeping skin firmer and less wrinkled, according to scientists from London's Kingston University. A collaboration between the university and British beauty brand Neal's Yard Remedies has seen experts discover that white tea, witch hazel and the simple rose hold potential health and beauty properties which could be simply too good to ignore.

The research suggests a number of naturally-occurring substances may offer the hope of new treatments to block the progression of inflammation. It is credited with a major role in both the initiation and development of diseases ranging from cancer, diabetes and arthritis through to neuro-degenerative conditions and cardiovascular and pulmonary problems.

"For thousands of years people used natural remedies to try -- and sometimes succeed -- in curing their ailments and preserving their youth," Professor Declan Naughton, from the University's School of Life Sciences, said. "Now the latest research we have carried out suggests a number of naturally-occurring substances may offer the hope of new treatments to block the progression of inflammation."

Inflammation is credited with a major role in both the initiation and development of diseases ranging from cancer, diabetes and arthritis through to neuro-degenerative conditions and cardiovascular and pulmonary problems. It is also implicated in premature aging and early death. "Inflammation is a secret killer -- helping arrest its development, or being able to stop it happening at all, would clearly be of benefit," Professor Naughton explained.

The new study builds on work undertaken by Professor Naughton and Kingston University PhD student Tamsyn Thring, along with the technical team from Neal's Yard. They tested 21 plant extracts for evidence of their efficiency in fighting cancer and also in the battle against aging. Of the 21 extracts, three -- white tea, witch hazel and rose -- showed considerable potential, with white tea displaying the most marked results. "Indeed it appeared that drinking a simple cup of white tea might well help reduce an individual's risk of cancer, rheumatoid arthritis or even just age-associated wrinkles," Professor Naughton said.

Spurred on by their laboratory findings, the team members decided to take the work further to see if they could replicate the results in human skin cells, looking more closely at the anti-inflammatory and anti-oxidant activity of the three extracts.

Using human skin cells as their model, the researchers added three different concentrations of white tea (freeze dried powder), witch hazel (dried herb) and rose extract (in a medicinal tincture form) to see what effect the mixtures might have on suppressing rogue enzymes and oxidants which play a key role in helping inflammation develop, as well as aging the skin. "As the largest organ in the body, the skin provides a barrier against UV radiation, chemicals, microbes and physical pollutants," Ms Thring said. "Challenges like this can contribute to both inflammation and skin aging.

"We also know that when inflammation starts -- be it a simple cut to a finger or in an arthritic joint -- the body starts producing a compound called interleukin 8, which helps the process along. We began wondering if there was a way we could switch that signal off, thereby blocking the inflammation's progress."

Even though the team's previous research had intimated there might be some promising results ahead, the experts were astonished to see just how good the various concentrations of the three extracts were at doing the job.

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Journal Reference:

Tamsyn SA Thring, Pauline Hili, Declan P Naughton. Antioxidant and potential anti-inflammatory activity of extracts and formulations of white tea, rose, and witch hazel on primary human dermal fibroblast cells. Journal of Inflammation, 2011; 8 (1): 27 DOI: 10.1186/1476-9255-8-27

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Training in 'concrete thinking' can be self-help treatment for depression, study suggests

ScienceDaily (Nov. 17, 2011) — New research provides the first evidence that depression can be treated by only targeting an individual's style of thinking through repeated mental exercises in an approach called cognitive bias modification.

The study suggests an innovative psychological treatment called 'concreteness training' can reduce depression in just two months and could work as a self-help therapy for depression in primary care.

Led by the University of Exeter and funded by the Medical Research Council, the research shows how this new treatment could help some of the 3.5 million people in the UK living with depression.

People suffering from depression have a tendency towards unhelpful abstract thinking and over-general negative thoughts, such as viewing a single mistake as evidence that they are useless at everything. Concreteness training (CNT) is a novel and unique treatment approach that attempts to directly target this tendency. Repeated practice of CNT exercises can help people to shift their thinking style.

CNT teaches people how to be more specific when reflecting on problems. This can help them to keep difficulties in perspective, improve problem-solving and reduce worry, brooding, and depressed mood. This study provided the first formal test of this treatment for depression in the NHS.

121 individuals who were currently experiencing an episode of depression were recruited from GP practices. They took part in the clinical trial and were randomly allocated into three groups. A third received their usual treatment from their GP, plus CNT, while some were offered relaxation training in addition to their usual treatment and the remainder simply continued their usual treatment. All participants were assessed by the research team after two months and then three and six months later to see what progress they had made.

The CNT involved the participants undertaking a daily exercise in which they focused on a recent event that they had found mildly to moderately upsetting. They did this initially with a therapist and then alone using an audio CD that provided guided instructions. They worked through standardised steps and a series of exercises to focus on the specific details of that event and to identify how they might have influenced the outcome.

CNT significantly reduced symptoms of depression and anxiety, on average reducing symptoms from severe depression to mild depression during the first two months and maintaining this effect over the following three and six months. On average, those individuals who simply continued with their usual treatment remained severely depressed.

Although concreteness training and relaxation training both significantly reduced depression and anxiety, only concreteness training reduced the negative thinking typically found in depression. Moreover, for those participants who practised it enough to ensure it became a habit, CNT reduced symptoms of depression more than relaxation training.

Professor Edward Watkins of the University of Exeter said: "This is the first demonstration that just targeting thinking style can be an effective means of tackling depression. Concreteness training can be delivered with minimal face-to-face contact with a therapist and training could be accessed online, through CDs or through smartphone apps. This has the advantage of making it a relatively cheap form of treatment that could be accessed by large numbers of people. This is a major priority in depression treatment and research, because of the high prevalence and global burden of depression, for which we need widely available cost-effective interventions."

The researchers are now calling for larger effectiveness clinical trials so that the feasibility of CNT as part of the NHS's treatment for depression can be assessed.

Published in the journal Psychological Medicine, this study was carried out by a team from the Mood Disorders Centre, which is a partnership between the NHS and the University of Exeter and the Peninsula College of Medicine and Dentistry, a joint entity of the Universities of Exeter and Plymouth and the NHS in the South West.

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