9 December, 2013

Coming soon – candy that fights tooth decay!

Good news for people who rejoice eating sweet treats but are wary of tooth decay! 

Researchers have developed a new ‘sugar-free’ candy that reduces the amount of cavity-causing bacteria on the teeth.

The candy developed by Christine Lang of the Berlin biotech firm Organobalance and her colleagues contains dead bacteria that bind to the bacteria most likely to cause cavities.

Subjects who ate the candy had reduced levels of “bad” bacteria in their mouths, ‘Medical Xpress’ reported.

After eating, bacteria attached to the surface of the teeth release an acid that dissolves the tooth enamel, leading to cavities.

Researchers said the strain of bacteria most likely to cause cavities is mutans streptococci.

Another type of bacteria, Lactobacillus paracasei, found in kefir, reduces levels of mutans streptococci and decreases the number of cavities in rats, researchers found.

Sugar on the surface of L paracasei binds with mutans streptococci.

Researchers believe that by binding with mutans streptococci, L paracasei prevents mutans streptococci from re-attaching to teeth.

To test whether L paracasei could help prevent cavities in people, Lang and her team developed a sugar-free candy containing heat-killed samples of the bacteria. They then tested the candy on a group of 60 volunteers.

After the experiment, about three-fourths of the people who had eaten candies with bacteria had significantly lower levels of mutans streptococci in their saliva than they had had the day before, the report said.

Subjects who consumed candies with two milligrammes of bacteria experienced a reduction in mutans streptococci levels after eating the first candy.

By using dead bacteria, they were able to avoid problems live bacteria might have caused, researchers said.

Source: http://health.india.com

09.12.2013

Taking probiotics during pregnancy or giving them to tots doesn’t prevent asthma

Researchers have claimed that even though probiotics has health benefits preventing childhood asthma isn’t one of them.

Principal investigator Meghan Azad, a Banting post-doctoral fellow in the Faculty of Medicine and Dentistry at the University of Alberta, and her team reviewed data from 20 clinical trials in Europe, Australia, New Zealand and Taiwan that involved more than 4,800 children whose mothers either took probiotics during pregnancy or gave probiotics to their babies in the first year.

The rate of doctor-diagnosed asthma was 11.2 per cent amoung infants who received probiotics and 10.2 per cent amoung babies who received the placebo.

Azad said that taking probiotics had no effect on the asthma rate, asserting that it can’t really be advised as a strategy to prevent asthma.

She said that there’s really good evidence that probiotics are beneficial to infants who are born pre-term and suffer from a bowel condition.

Azad said that there’s also good evidence that probiotics might prevent eczema.

Her team made another interesting finding that warrants more research: babies who received probiotics as infants or in utero had higher incidences of lower respiratory infections.

The study has been published in the British Medical Journal this week.  

Source: http://health.india.com

09.12.2013

Somewhere, something incredible is waiting to be known

Carl Sagan