Nanomedicines can Cure Jaundice Faster: Thanks to Indian Scientists

Widening the scope of nanomedicines in India, scientists have designed special nanoparticles that break down bilirubin - the yellow pigment found in liver.

The age-old home remedy for jaundice - nimbu paani or lemon juice - has now got a 21st century spin, thanks to Indian scientists. They have literally squeezed lemons to nano-dimensions to create a nanodrug for speedy and accurate therapy of the condition.

Widening the scope of nanomedicines in India, scientists in West Bengal have designed special nanoparticles that break down bilirubin - the yellow pigment found in bile, a fluid made by the liver.

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Essential to liver health, higher than normal levels of bilirubin in blood (hyperbilirubinemia), may indicate certain diseases in adults as well as newborns.

"High levels may lead to brain damage or even death in newborns and adults, if not treated. To combat this, we designed manganese oxide nanoparticles capped with citrate, a derivative of citric acid found in citrus fruits such as lemons," Nabarun Polley, of S. N. Bose National Centre for Basic Sciences, Kolkata, said.

Polley, a senior researcher at the Centre’s department of chemical, biological and macro-molecular sciences, explained that this nano-hybrid helps to degrade bilirubin and bring it down to a normal level swiftly.

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"It is actually like nimbu paani administered through nanoparticles," said Polley, adding lemon juice is usually suggested due to its cleansing nature.

Through experiments performed on lab mice, Polley and his co-investigators at Jadavpur University and Dey’s Medical, showed the nanoparticles to be safe, compatible with the body, and proved that they had the ability to act directly and specifically on the target: bilirubin.

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"This ensures the nanodrug doesn’t affect any organ. There were no toxic effects after the particles were injected into the mice and parameters like blood cell count didn’t change," said collaborator Soumendra Darbar, research and development division, Dey’s Medical Stores (Mfg.) Ltd.

In fact, this precision which is the product’s USP also takes care of the time factor.

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"It brought down high bilirubin levels within two hours (in mice) while the commercially available drug silymarin took more than a day to control the levels for the equivalent dose," said Polley, adding the group has been working on this specific nanoparticle for the last five years.

The latest findings, which are currently in press for publication in the Nanomedicine journal, open a new door for "cost-effective and efficient therapeutic treatment of hyperbilirubinemia, jaundice and associated diseases," according to group leader Samir Kumar Pal.

"We have been working on detection as well as the treatment aspect of elevated bilirubin. In the near future, we could help avoid preventable deaths of newborns," said Pal, professor at the Centre’s department of chemical, biological and macro-molecular sciences.

Union Minister of Science and Technology Harsh Vardhan, after his visit to Pal’s lab recently, had highlighted on Facebook that neonatal jaundice deaths, comprise 18% of newborn mortality in India.

He was particularly impressed with a non-invasive, computer-based fiber-optic detector fabricated by the group that detects bilirubin levels within three seconds by shining light on the white part of one’s eye.

"Nanomedicine has huge potential for India as it has elsewhere in the world. Specially, diagnostics promises to offer cheap and faster way for detecting diseases for India. This has a huge potential for India because our healthcare is not as widespread," said Praveer Asthana, Mission Director, Nano Mission, Department of Science & Technology, India.

Source-IANS