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Ashwagandha Stress Reduction, Neural Protection, and a Lot More from an Ancient Herb

  [ 2 votes ]   [ 1 Comment ]
By Dale Kiefer • www.ProHealth.com • June 22, 2015


Ashwagandha Stress Reduction, Neural Protection, and a Lot More from an Ancient Herb
Ashwagandha, an exotic Indian herb, has remarkable stress-relieving properties comparable to those of powerful drugs used to treat depression and anxiety. In addition to its excellent protective effects on the nervous system, ashwagandha may be a promising alternative treatment for a variety of degenerative diseases such as Alzheimer’s and Parkinson’s. Ashwagandha has powerful antioxidant properties that seek and destroy the free radicals that have been implicated in aging and numerous disease states.

Powerful Protective Effects on the Nervous System

Stress, environmental toxins, and poor nutrition all have a detrimental impact on our nervous systems.

Scientific studies support ashwagandha’s ability not only to relieve stress, but also to protect brain cells against the deleterious effects of our modern lifestyles.

For example, in validated models of anxiety and depression, ashwagandha has been demonstrated to be as effective as some tranquilizers and antidepressant drugs. Specifically, oral administration of ashwagandha for five days suggested anxiety-relieving effects similar to those achieved by the anti-anxiety drug lorazepam (Ativan®), and antidepressant effects similar to those of the prescription antidepressant drug imipramine (Tofranil®).1

Stress can cause increased peroxidation of lipids, while decreasing levels of the antioxidant enzymes catalase and glutathione peroxidase. When ashwagandha extract was administered by re-searchers one hour before a daily stress-inducing procedure, all of the aforementioned parameters of free radical damage normalized in a dose-dependent manner.2 Premature aging associated with chronic nervous tension may be related to increased oxidative stress, which is abolished by the potent antioxidant properties of ashwagandha extract. Researchers believe this finding supports the clinical use of ashwagandha as an anti-stress agent.

Other studies of chronic stress support these findings. For example, in a remarkable animal study, examination of the brains of sacrificed animals showed that 85% of the brain cells observed in the animals exposed to chronic stress showed signs of degeneration. It is this type of cellular degeneration that can lead to long-term cognitive difficulties. Amazingly, when ashwagandha was administered to chronically stressed animals, the number of degenerating brain cells was reduced by 80%!3

In one of the most complete human clinical trials to date, researchers studied the effects of a standardized extract of ashwagandha on the negative effects of stress, including elevated levels of the stress hormone cortisol. Many of the adverse effects of stress are thought to be related to elevated levels of cortisol. The results were impressive. The participants subjectively reported increased energy, reduced fatigue, better sleep, and an enhanced sense of well-being. The participants showed several measurable improvements, including a reduction of cortisol levels up to 26%, a decline in fasting blood sugar levels, and improved lipid profiles. It would appear from this study that ashwagandha can address many of the health and psychological issues that plague today’s society.4

Over the past five years, the Institute of Natural Medicine at the Toyama Medical and Pharmaceutical University in Japan has conducted extensive research into the brain benefits of ashwagandha. The Institute’s scientists were looking for ways to encourage the regeneration of nerve cell components called axons and dendrites in validated models of the human brain. This important research may one day benefit those who have incurred brain injuries due to physical trauma, as well as those who suffer cognitive decline due to destruction of the nerve cell networks from diseases such as dementia and Alzheimer’s.

Using a validated model of damaged nerve cells and impaired nerve-signaling pathways, re-searchers noted that ashwagandha supported significant regeneration of the axons and dendrites of nerve cells. Furthermore, ashwagandha extract supported the reconstruction of synapses, the junctions where nerve cells communicate with other cells. The investigators concluded that ashwagandha extract helps to reconstruct networks of the nervous system, making it a potential treatment for neurodegenerative diseases such as Alzheimer’s.5

In another study at the same institute, researchers found that ashwagandha helped support the growth of nerve cell dendrites, which allow these cells to receive communications from other cells. This finding suggests that ashwagandha could help heal the brain tissue changes that accompany dementia.6

Finally, in a third published study, the researchers noted that ashwagandha helped promote the growth of both normal and damaged nerve cells, suggesting that the herb may boost healthy brain cell function as well as benefit diseased nerve cells.7

These findings provide tremendous hope that ashwagandha extracts may one day help heal neurodegenerative diseases in humans, freeing patients from the mental prisons of dementia and Alzheimer’s. Clearly, this is just the beginning of research into ashwagandha’s ability to encourage physical re-growth of the brain.

Ashwagandha also shows promise as a treatment for Parkinson’s and Alzheimer’s diseases, chronic neurodegenerative conditions for which there currently are no cures. In a recent study using a standardized model of human Parkinson’s disease, ashwagandha extract reversed all the parameters of Parkinson’s-type neurodegeneration significantly and in a dose-dependent manner.8 Remarkably, an earlier study showed that ashwagandha extract inhibits acetylcholinesterase, an enzyme responsible for breaking down one of the brain’s key chemical messengers. Drugs currently used in the treatment of Alzheimer’s disease, such as Aricept®, act in this very manner to slow the progression of this frightening, mind-robbing disease.9

Ashwagandha's Pharmacological Activity

Scientists speculate that some of ashwagandha’s benefits stem from its antioxidant properties and ability to scavenge free radicals.10

Two main classes of compounds-steroidal alkaloids and steroidal lactones-may account for its broad range of beneficial effects. Steroidal lactones comprise a class of constituents called withanolides. To date, scientists have identified and studied at least 12 alkaloids and 35 withanolides. Much of ashwagandha’s pharmacological activity has been attributed to two primary withanolides, withaferin A and withanolide D.11

Other studies reveal that ashwagandha has antimicrobial properties, with antibacterial activity against potentially dangerous bacteria, including Salmonella, an organism associated with food poisoning. This activity was demonstrated in cell cultures as well as in infected laboratory animals.12

Additional studies show that ashwagandha root extract enhances the ability of macrophage immune cells to “eat” pathogens, as compared to macrophages from a control group that did not receive ashwagandha.13

Another animal study investigated ashwagandha extract’s effects in normalizing the immune-suppressing effects of chemotherapy. When test animals received a common chemotherapy drug, levels of the desirable immune factors interferon-gamma and interleukin-2 decreased.

When the animals also received orally administered ashwagandha extract, however, their immune system parameters remained normal. These findings add support to the idea that ashwagandha may help protect immune function during chemotherapy treatment.20

Conclusion

Chronic stress exacts a high price from our bodies as well as our minds. Many degenerative diseases, as well as premature aging, are associated with chronic nervous tension. There is great need for safe and effective prevention strategies to combat the ravages of stress on our nervous system.

Ashwagandha, an exotic Indian herb, has demonstrated anti-anxiety and neuroprotective effects, and tantalizing evidence suggests that it is also a cancer fighter. Animal toxicity studies indicate that this remarkable plant is safe and well tolerated.21

References»



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Article Comments Post a Comment

Reduce Stress
Posted by: moreorlesss
Jun 22, 2015
If you are stressed i suggest you learn how to meditate because ever since I have started I have improved my life drastically. I have an overall sense of peace with myself and the world and have never been happier. My stress levels have gone to an all time low and It even helps me with my anxiety and panic attacks.

If you want to learn how to meditate I suggest you read this story.

http://anxiousreview.com/learnmeditation/
Reply Reply
 
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