According to the scientists they have discovered the method to convert the stem cells into sensory, more precisely, auditory neurons that can be inserted with operation to restore hearing in deaf people.

The technique that has proven effective in the animals still is not in the position to serve humans.

“It may take some years, before we implement this on the human body,” lead researcher Marcelo Rivolta said. The sound detector cells of the ear only develop in the metamorphosis of the child and there is no way to repair them if damaged, which may result in partial or complete hearing loss.

Beside this study, researchers are also trying to treat age related eye disease such as macular degeneration or cataract etc with stem cells which have the potential to produce any type of body tissues and organs.

Researchers hope that one day they would be able to treat deadly diseases like cancer, diabetes or Parkinson’s disease with the help of stem cells. The initial step from ears or eyes may become a ray of light, since there is involvement of few cells.

The researchers say that heavy metals contamination is linked to neurological problems like Parkinson’s disease and can also cause oxidative stress that leads to chronic inflammatory disease and cancer.

Declan Naughton, who led the study, says: “To determine the Target Hazard Quotients(THQ) for these wines, we used those reports of concentrations of metals in wines that originated from 16 countries and we found that many of wines provided very high THQ values that is quite alarming.”

Among the wines collected from Austria, Portugal, Spain, Hungary, Czech Republic, Serbia, Argentina, Italy, France, Germany, Spain, Slovakia, Macedonia and Greece only countries had wines without any hazard from heavy metals.

The analysis showed that wines from Argentina, Brazil and Italy had 1.0 or below THQ values.

The study has been published in the online edition of Chemistry Central Journal in Oct. 30 issue.

Naughton and colleague used THQ formula for the study that was developed by the U.S. Environmental Protection Agency to know about the heavy metals in wines. These heavy metals include copper, manganese, zinc, nickel, vanadium, lead and chromium.

A recent research study published in the February issue of the journal “Neurology” established this finding with sufficient evidences based on clinical trials.

Researchers conducted study with the help of almost 7,374 volunteers who were men and women both and were belonging to an age group of ‘over 40 years’. Selection of these men and women was on the basis of having the Parkinson’s disease or not. Meaning thereby, half of them were suffering from this disease and the rest one did not.

Among all the men and women, divided in to two groups, 50 percent volunteers were also suffering from high blood pressure and were undergoing its treatments that included the ‘calcium Channel blockers’, ACE inhibitors, AT-II antagonists, and beta blockers.

Researchers observed that the participants who were treating themselves with the calcium channel blockers for a long time for controlling their high blood pressure were found to be with lowered down risks of having Parkinson’s disease. The rate of such lowering down was calculated to be almost 23% compared to those participants who were not on these medications.

Such effects of lowering down the risks of Parkinson’s disease was however, not observed with same effects with the use of any other drugs like ACE inhibitors, AT II antagonists and beta blockers. Dr Christoph R. Meier , the lead researcher at the University Hospital Basel in Switzerland says,” no such association was seen for other high blood pressure medicines”.

Dr Christoph R. Meier believe that further extended research in to this area is really required as it would further help in exploring the explanations of why these ‘calcium channel Blockers’ act as a potential firewall against the risks of Parkinson’s disease and reduce the risks up to great extent at the same time. The future research would also be helpful in finding out the reasons for all other high blood pressure drugs not being effective in the same manner.

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