Indian-made 'freeze-free' vaccine carrier to undergo field trials

Agencies
February 9, 2018

New Delhi, Feb 9: This week, the first commercially available freeze-free vaccine carrier will begin introductory field trials in Nepal. This follows the World Health Organisation (WHO) announcement that the Indian-made carrier using PATH's "Freeze-Safe" reference design passed WHO Performance, Quality, and Safety (PQS) laboratory tests for User Independent Freeze Prevention, which prequalifies it for use in global immunisation programs.

This is the first low-cost carrier innovation available to address the widespread and long-standing problem of vaccines freezing in the cold chain during the "last mile" of outreach to infants and children.

Currently in low - and middle - income countries, health workers carry millions of temperature-sensitive vaccines next to ice packs inside vaccine carriers to reduce heat exposure, but this risks freezing the vaccines if ice packs are not conditioned (carefully warmed to around 0°C).

Freezing can irreversibly compromise vaccine potency, resulting in inadequate protection from disease for people receiving vaccines. When health workers suspect temperature damage, the vaccine or medication is often discarded - at great cost to health care programs.

PATH's breakthrough solution mitigates the risk of vaccines being damaged by freezing or heat in carriers and eliminates the step of conditioning ice packs, reducing health worker burden. Frozen ice packs can be inserted immediately into the carrier thanks to a built-in barrier that shields the vaccines from reaching negative temperatures and excessive heat.

Many of the newer vaccines that protect children and infants from life-threatening diseases and infections, such as for human papillomavirus, pneumonia, and rotavirus, are freeze sensitive and cost far more than other vaccines. In 2015, the United Nations Children's Fund (UNICEF) procured approximately USD 1.7 billion worth of vaccines for immunization programs, of which more than USD 1.2 billion were freeze sensitive.

"Our priority is maintaining vaccine potency for the millions of people living in remote communities. In the future, vaccine carriers that prevent freezing will become the new standard for immunization programs," said Pat Lennon, who leads the cold chain team at PATH.

In order to rapidly accelerate introduction of this innovation, PATH put the Freeze-Safe reference design into the public domain for any manufacturer to use in their vaccine carrier products.

PATH staff in Seattle and New Delhi, India, has provided technical advice to three product manufacturers who have adopted the technology. India-based AOV International's product AFVC46 is the first carrier to receive WHO-PQS approval and will be available for purchase through the UNICEF Supply Division catalog.

"The Freeze-Safe vaccine carrier is a great example of Indian industry helping solve a global public health challenge. This 'Made in India' freeze-preventive vaccine carrier can help health workers in India and globally to administer lifesaving vaccines that do not freeze and could help save millions of lives," said Neeraj Jain, Country Director of PATH's India country program.

PATH estimates that more than 2 million new and replacement carriers will be needed by 2020 for the 73 Gavi-member countries. To accelerate scale-up of the Freeze-Safe innovation, PATH is conducting field trials, supporting efforts to integrate the carriers into existing health systems, and working with manufacturers as well as adapting the innovation for use in other cold chain equipment.

"Vaccine carriers that prevent vaccines from freezing while in transit and yet are low cost and easy to use can save millions of children's lives. These are exactly the type of cutting-edge solutions we need to immunize every child," said Dr. Benjamin Schreiber, Deputy Immunization at UNICEF.

PATH has worked to advance technologies, policies, and programs to address vaccine freezing issues across the supply chain from formulation to the last mile since 1996, and on the Freeze-Safe innovation since 2012. This work aligns with UNICEF; Gavi, the Vaccine Alliance; and WHO strategies to maintain vaccine potency and improve immunization cost efficiencies and coverage.

This project was made possible with support from the Bill & Melinda Gates Foundation.

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Agencies
January 16,2020

Thiruvananthapuram, Jan 16: Kerala Tourism on Wednesday shared a recipe of a popular meat dish in the Central Travancore region of Kerala, Beef Ularthiyathu, which is a special delicacy in the region.

Taking to its Twitter handle, the Kerala Tourism wrote, "Tender chunks of beef, slow-roasted with aromatic spices, coconut pieces, and curry leaves. A recipe for the most classic dish, Beef Ularthiyathu, the stuff of legends, from the land of spices, Kerala."

The State Tourism also shared the recipe of the delicacy with Twitteratis.

The tweet which has garnered 3.5 thousand likes so far had received a mixed response

While some said "beef is not Kerala's culture", others termed the recipe 'a match made in heaven".

Dr Vireandta Jilowa wrote, "Surprised to see it, that beef is being consumed despite BJP government in the Centre."

"We are not slaves of BJP at the Centre....people eat whatever they like in this state, including beef, pork, mutton and fish," another user Tatheesh Vijayakumar wrote.

In 2017, The Minister for Environment, Forest and Climate Change Harsh Vardhan had ordered that the ministry has notified the Prevention of Cruelty to Animals (Regulation of Livestock Markets) Rules, 2017 to ensure that the sale of cattle is not meant for slaughter purposes.

Regulating animal trade is a state business, but animal welfare is a central subject.

In lieu of this, there was widespread opposition of the order, with many states openly denying accepting the notification.

Porotta and Kappa biriyani with beef are counted as delicacies by Keralites. 

Also Read: The Art of Prepping Meat

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News Network
February 22,2020

Feb 22: The subjective feeling of well-being experienced by many people with the practice of meditation is associated with specific changes in the brain, according to a study which may lead to better clinical recommendations of the practice.

The study, published in the journal Brain and Cognition, examined the effects of the technique known as Transcendental Meditation (TM), which consists of the silent repetition of a meaningless sound.

In the study, the researchers from the IMT School for Advanced Studies Lucca in Italy, enrolled 34 healthy young volunteers and divided them in two groups.

They said the first group practised TM 40 minutes per day in two sessions of 20 minutes each, one in the morning and the other in the evening.

The second group, the scientists said, did not change its daily routine.

Using questionnaires, they also measured the anxiety and stress levels of all the participants at the beginning of the study, as well as the subjects' ability to manage stressful situations.

According to the researchers, the participants were also subjected to a functional magnetic resonance imaging (fMRI) brain scan, in order to measure the organ's activity at rest, and changes in the excitation among different cerebral areas.

They repeated the tests after three months, at the end of the study.

According to the study, the levels of anxiety and stress perceived by the subjects who followed the meditation program were significantly reduced in comparison with those of the volunteers who did not practice TM.

"Magnetic resonance imaging also shows that the reduction of anxiety levels is associated with specific changes in the connectivity between different cerebral areas, such as precuneus, left parietal lobe and insula, which all have an important role in the modulation of emotions and inner states," said study co-author Giulia Avvenuti from the IMT School for Advanced Studies Lucca.

"In the control group, instead, none of these changes was observed. The fact that Transcendental Meditation has measurable effects on the 'dialogue' between brain structures involved in the modulation of affective states opens new perspectives for the understanding of brain-mind relationships," said Pietro Pietrini, IMT School's Director, and co-author of the study.

"It also extends the results of recent research suggesting that drugs therapies and psychotherapy leverage on the same biological mechanism," Pietrini said.

According to the researchers, even a few months of practice of TM can have positive effects which can be correlated with measurable changes in the brain.

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Agencies
May 19,2020

New York, May 19: Cigarette smoke spurs the lungs to make more of the receptor protein which the novel coronavirus uses to enter human cells, according to a study which suggests that quitting smoking might reduce the risk of a severe coronavirus infection.

The findings, published in the journal Developmental Cell, may explain why smokers appear to be particularly vulnerable to severe COVID-19 disease.

"Our results provide a clue as to why smokers who develop COVID-19 tend to have poor clinical outcomes," said study senior author Jason Sheltzer, a cancer geneticist at Cold Spring Harbor Laboratory in the US.

"We found that smoking caused a significant increase in the expression of ACE2, the protein that SARS-CoV-2 uses to enter human cells," Sheltzer said.

According to the scientists, quitting smoking might reduce the risk of a severe coronavirus infection.

They said most individuals infected with the virus suffer only mild illness, if they experience any at all.

However, some require intensive care when the sometimes-fatal virus attacks, the researchers said.

In particular, they said three groups have been significantly more likely than others to develop severe illness -- men, the elderly, and smokers.

Turning to previously published data for possible explanations for these disparities, the scientists assessed if vulnerable groups share some key features related to the human proteins that the coronavirus relies on for infection.

First, they said, they focused on comparing gene activity in the lungs across different ages, between the sexes, and between smokers and nonsmokers.

The scientists said both mice that had been exposed to smoke in a laboratory, and humans who were current smokers had significant upregulation of ACE2.

According to Sheltzer, smokers produced 30-55 per cent more ACE2 than their non-smoking counterparts.

While the researchers found no evidence that age or sex impacts ACE2 levels in the lungs, they said the influence of smoke exposure was surprisingly strong.

However, they said, the change seemed to be temporary.

According to the data, the level of the receptors ACE2 in the lungs of people who had quit smoking was similar to that of non-smokers.

The study noted that the most prolific producers of ACE2 in the airways are mucus-producing cells called goblet cells.

Smoking is known to increase the prevalence of such cells, the scientists said.

"Goblet cells produce mucous to protect the respiratory tract from inhaled irritants. Thus, the increased expression of ACE2 in smokers' lungs could be a byproduct of smoking-induced secretory cell hyperplasia," Sheltzer explained.

However, Sheltzer said other studies on the effects of cigarette smoke have shown mixed results.

"Cigarette smoke contains hundreds of different chemicals. It's possible that certain ingredients like nicotine have a different effect than whole smoke does," he said.

The researchers cautioned that the actual ACE2 protein may be regulated in ways not addressed in the current study.

"One could imagine that having more cells that express ACE2 could make it easier for SARS-CoV-2 to spread in someone's lungs, but there is still a lot more we need to explore," Sheltzer said.

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