Here's How IIT Madras Students Are Making Wound Healing Easier For Diabetics

Agencies
May 8, 2018

Students at IIT Madras have developed a novel wound dressing material that would help diabetic patients heal faster. The dressing material uses graphene-based compounds. Wound healing in diabetic is not as rapid as compared to a normal, healthy individual. This delayed healing or non-healed wounds could lead to serious complications and in worse cases call for amputations too. 

In a bid to contribute to the major clinical challenge, students at IIT Madras have come up with a  new wound healing material. The researchers said, that they were aiming to exploit the property of graphene-based materials of improving blood vessel formation at certain concentrations to prepare an inexpensive wound dressing. In the animal studies conducted, the psyllium-reduced graphene oxide nanocomposite showed emphatic results.  

"We hope this is the first step towards developing inexpensive wound dressings using graphene-based materials for clinical use," said Vignesh Muthuvijayan, Assistant Professor, Department of Biotechnology. The researchers used a convex lens to focus sunlight on graphene oxide to obtain reduced graphene oxide. "Thereafter, they loaded these reduced graphene oxide dispersions into a plant carbohydrate polymer (psyllium) solution to obtain wound dressing scaffolds. 

The researchers used fibroblast cells which are responsible for wound healing to evaluate the toxicity and bioactivity of these scaffolds on the cell attachment, migration and proliferation. 

"These newly developed scaffolds provide a suitable tissue-friendly environment for cells and subsequently improve cell proliferation and attachment," Muthuvijayan added.
 
The trials and results revealed that the normal wounds treated with the dressings healed in 16 days as compared to 23 days in untreated normal wounds. Similarly, diabetic wounds treated with the dressings healed in 20 days as against 26 days in untreated diabetic wounds. "These scaffolds are easy to prepare, inexpensive, and show excellent healing properties. Thus, the material acts as a good wound dressing and helps in accelerated healing of normal and diabetic wounds," he said.

Diabetes refers to a group of diseases that result in too much sugar in the blood (high blood glucose). The sugar spike is due to an impaired insulin hormone, that triggers abnormal metabolism of carbohydrate and hike in sugar levels. Your diet and nutrition can play a significant role in managing diabetes. Here are some healthy dietary tips you should make part of your daily regime now.

Follow a balanced diet with complex carbs: According to Preeti Rao, Health and Wellness Coach, eating a variety of fruits and vegetables, lean protein and good sources of fat is very essential for diabetes management. One must avoid trans fats (also called hydrogenated fat), processed food, and sugar and up intake of complex carbs. Complex carbohydrates are rich in fiber and are not highly processed like refined carbohydrates. They take longer to digest and hence provide a sustained source of energy for a longer duration.

Include more Low GI Foods: Glycemic Index (GI) is a relative ranking of carbohydrate in foods according to how they affect blood glucose levels. Carbohydrates with a low GI value (55 or less) are more slowly digested, absorbed and metabolised and cause a lower and slower rise in blood glucose. Low GI foods are also rich in fibre which takes the longest to digest, make you feel fuller for a longer time and help control appetite. This could further help in weight management. Tomato, spinach, guavas, cauliflower, and pears are some low glycemic index foods you can choose to add to your diet.

Avoid Sugary Drinks and Fruit Juices: Diabetics should steer clear of aerated and sugary drinks, various studies and reports have time and again reinforced that these drinks are full of liquid calories and can cause major spike in the blood sugar levels. Your can of fruit juice is not one of the healthiest substitutes either. Fruit juices especially packaged fruit juices are loaded with fructose that elevates the blood sugar levels. It is advisable to eat whole fruits instead. Fruits are full of fibres, fibres take time to metabolise and thus doesn't result in sudden surge in blood sugar levels. Eat fruits that have a low glycemic index. Eat fruits with some nuts and olives to balance the glycemic load.

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Agencies
May 10,2020

Washington D.C., May 9: Do the middle age feel much stressful now, and seems to have changed over time, if compared to the life in the 90s? Well, this recent study indicates that it might be true.

The study has signalled to the fact that life may become more stressful majorly for middle-aged people than it was in the 1990s. The researchers reached this analysis even before the novel coronavirus started sweeping the globe.

A team of researchers led by Penn State found that across all ages, there was a slight increase in daily stress in the 2010s compared to the 1990s. But when researchers restricted the sample to people between the ages of 45 and 64, there was a sharp increase in daily stress.

"On average, people reported about 2 percent more stressors in the 2010s compared to people in the past," said David M. Almeida, professor of human development and family studies at Penn State.

"That's around an additional week of stress a year. But what really surprised us is that people at mid-life reported a lot more stressors, about 19 percent more stress in 2010 than in 1990. And that translates to 64 more days of stress a year."

Almeida said the findings were part of a larger project aiming to discover whether health during the middle of Americans' lives has been changing over time.

"Certainly, when you talk to people, they seem to think that daily life is more hectic and less certain these days," Almeida said.

For the study, the researchers collected data from 1,499 adults in 1995 and 782 different adults in 2012.

Almeida said the goal was to study two cohorts of people who were the same age at the time the data was collected but born in different decades. All study participants were interviewed daily for eight consecutive days.

During each daily interview, the researchers asked the participants about their stressful experiences throughout the previous 24 hours.

They asked questions related to arguments with family or friends or feeling overwhelmed at home or work, so and so. The participants were also asked how severe their stress was and whether those stressors were likely to impact other areas of their lives.

"We were able to estimate not only how frequently people experienced stress, but also what those stressors mean to them," Almeida said.

"For example, did this stress affect their finances or their plans for the future. And by having these two cohorts of people, we were able to compare daily stress processes in 1990 with daily stress processes in 2010," Almeida added.

After analyzing the data, the researchers found that participants reported significantly more daily stress and lower well-being in the 2010s compared to the 1990s.

Additionally, participants reported a 27 percent increase in the belief that stress would affect their finances and a 17 percent increase in the belief that stress would affect their future plans.

Almeida said he was surprised not that people were more stressed now than in the 90s, but at the age group that was mainly affected.

"We thought that with economic uncertainty, life might be more stressful for younger adults. But we didn't see that. We saw more stress for people at mid-life," Almeida said.

"And maybe that's because they have children who are facing an uncertain job market while also responsible for their own parents. So it's this generational squeeze that's making stress more prevalent for people at mid-life," he concluded.

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Agencies
May 5,2020

The lockdown forced by the coronavirus in India has had some unexpected but positive fallouts: It has brought families together and reduced corporate politics, says an expert working in the field for the past decade.

"Today the whole world is on lockdown because of COVID-19, and all that we read, talk and hear is about life and death. We can't deny that the times are tough and the future is uncertain. But I would like to turn the coin and see the other side: the positive side," Shikha Mittal, Founder Director of Be.artsy told IANS in an interview.

Be.artsy is one of India's leading social awareness enterprises which deals with emotions at work and promotes arts as a communication tool for workplaces.

"In the 21st century, personally and professionally, people are practising politics over humanity, competition over collaboration, and have lost touch with themselves due to materialistic desires. During the lockdown, we are forced to confront our existing daily lives, and two interesting things that we can ponder upon, have emerged.

"First, have we ever looked at our family with the same lens as we are using today? What is it that we are doing differently with family today, and what can we do to carry our actions of today into our tomorrow? This is the premise of the #aajjaisakalcontest" that Be.artsy has launched across India.

The aim is "to encourage people to share one habit or life skill that they never practiced earlier, but post Covid-19 would like to continue and enjoy".

How did Be.artsy come about?

"I used to be in the corporate world, earning promotions and greater responsibility. However, the work conditions in those days were unfriendly to women and I had faced many instances of sexual harassment and workplace harassment in the six years of my corporate career. And that's when I had an epiphany."

Be.artsy's most popular programmes are on Prevention of Sexual Harassment (POSH) and on Financial Literacy which makes young people financially independent and better prepared to face the corporate world. "We know that a stitch in time (of planning for the future) saves nine (debt trap, dependence, health emergencies, expenses exceeding income, no savings, families without support, retirement in poverty, lost dreams, extravagance). This can only be achieved by sensitisation," Mittal explained.

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Agencies
January 26,2020

High-protein diets may help people lose weight and build muscle, but there is a downside to it --a greater heart attack risk. Researchers now report that high-protein diets boost artery-clogging plaque.

The research in mice showed that high-protein diets spur unstable plaque -- the kind most prone to rupturing and causing blocked arteries.

More plaque buildup in the arteries, particularly if it's unstable, increases the risk of heart attack.

"There are clear weight-loss benefits to high-protein diets, which has boosted their popularity in recent years," said senior author Babak Razani, associate professor at Washington University School of Medicine in St. Louis, Missouri.

"But animal studies and some large epidemiological studies in people have linked high dietary protein to cardiovascular problems. We decided to take a look at whether there is truly a causal link between high dietary protein and poorer cardiovascular health," Razani added.

The researchers studied mice who were fed a high-fat diet to deliberately induce atherosclerosis, or plaque buildup in the arteries.

Some of the mice received a high-fat diet that was also high in protein. And others were fed a high-fat, low-protein diet for comparison.

The mice on the high-fat, high-protein diet developed worse atherosclerosis -- about 30 per cent more plaque in the arteries -- than mice on the high-fat, normal-protein diet, despite the fact that the mice eating more protein did not gain weight, unlike the mice on the high-fat, normal-protein diet.

"A couple of a scoop of protein powder in a milkshake or smoothie adds something like 40 grams of protein -- almost equivalent to the daily recommended intake," Razani said.

"To see if protein has an effect on cardiovascular health, we tripled the amount of protein that the mice receive in the high-fat, high-protein diet -- keeping the fat constant. Protein went from 15 per cent to 46 per cent of calories for these mice".

Plaque contains a mix of fat, cholesterol, calcium deposits and dead cells. Past work by Razani's team and other groups has shown that immune cells called macrophages work to clean up plaque in the arteries.

But the environment inside plaque can overwhelm these cells, and when such cells die, they make the problem worse, contributing to plaque buildup and increasing plaque complexity.

"In mice on the high-protein diet, their plaques were a macrophage graveyard," Razani informed.

To understand how high dietary protein might increase plaque complexity, Razani and his colleagues also studied the path protein takes after it has been digested -- broken down into its original building blocks, called amino acids.

"This study is not the first to show a telltale increase in plaque with high-protein diets, but it offers a deeper understanding of the impact of high protein with the detailed analysis of the plaques," said Razani.

"This work not only defines the critical processes underlying the cardiovascular risks of dietary protein but also lays the groundwork for targeting these pathways in treating heart disease," he added.

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