Almond snacking may lower cholesterol, blood glucose, says study

Agencies

August 18, 2018

Los Angeles, Aug 18: A morning snack of almonds may reduce total cholesterol, and improve the body’s ability to regulate blood sugar in breakfast-skipping college students, a study claims. Many college students tend to skip meals, mostly breakfast, while they transition to a more hectic independent lifestyle, said researchers from the University of California Merced in the US. According to the American Heart Association, daily breakfast consumption may decrease cardiometabolic risk factors including blood sugar and insulin metabolism, they said.

“This study, the first among a college student population, shows that for those who skip breakfast, almonds are a good snack choice,” said Rudy Ortiz, who led the study published in the journal Nutrients. Among predominantly breakfast-skipping college students, including a morning snack – either of almonds or graham crackers – reduced total cholesterol and improved fasting blood sugar levels, the researchers said.

However, the benefits were greater with almonds, they said. Those who snacked on almonds better preserved HDL (good) cholesterol levels and improved measures of the body’s ability to regulate blood sugar over the course of the eight-week study. In the study, 73 healthy, first-year college students (41 women and 32 men) were randomly assigned to one of two snacking groups.

The first group ate 56 grammes of dry roasted almonds, totalling 320 calories, per day, and the other ate 77.5 grammes of graham crackers, totalling 338 calories, per day. Over the study period, consumption of the assigned snack was supervised by researchers except on weekends and spring break, when compliance was monitored via text.

Study participants tracked their calorie and nutrient intake using a validated 24-hour food frequency questionnaire. Results showed that those in the almond group had better measures of several glucoregulatory and cardiometabolic health indicators, including 13 per cent lower two-hour glucose area under the curve (AUC), and 34 per cent lower insulin resistance index (IRI).

The group also had 82 per cent higher Matsuda index during oral glucose tolerance testing, which represents a gross estimation of insulin sensitivity, researchers said. This index almost doubled among the almond snackers. Both the groups saw reductions in HDL cholesterol, but the almond snackers’ levels fell by 13.5 per cent compared to a 24.5 in graham cracker snackers.

“For almonds to double the Matsuda index over an 8-week period is profound, especially in a young, healthy population, illustrating the benefit in insulin sensitivity that almonds may provide,” said Ortiz. “And almonds’ effect on several of the other glucoregulatory and cardiometabolic health parameters shows their potential as a smart snack, particularly in this group,” he said.

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Lung cancer rates are rising in young women

Agencies

February 6,2020

Researchers have found the rates of lung cancer are higher in young women than men.

The study, published in the journal Pediatrics, examined lung cancer rates in young adults in 40 countries across five continents and uncovered a trend of higher lung cancer rates in women compared with men in recent years.

The emerging trend was widespread, affecting countries across varied geographic locations and income levels.

The changes appeared to be driven by a rising rate of adenocarcinoma lung cancer among women, said the study researchers from University of Calgary in Canada.

Lung cancer rates have been higher among men than women because men started smoking in large numbers earlier and smoked at higher rates; however, recent studies have reported converging lung cancer incidence rates between sexes.

Among men, age specific lung cancer incidence rates generally decreased in all countries, while in women the rates varied across countries with the trends in most countries stable or declining, albeit at a slower pace compared to those in men.

For the findings, lung and bronchial cancer cases between 30-64 age group from 1993-2012 were extracted from cancer incidence in five continents.

The study found the higher emerging rates of lung cancer in young women compared to young men.

According to the researchers, future studies are needed to identify reasons for the elevated incidence of lung cancer among young women.

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Hot weather theory falls flat, coronavirus more potent in India post-summer

Agencies

July 5,2020

The deadly coronavirus that entered India while there was still nip in the air has beaten rising mercury, humid conditions, unique Indian genome and has entered monsoon season with more potency as fresh cases are only breaking all records in the country.

India recorded a single-day spike of record 24,850 new coronavirus cases on Sunday, taking its total tally to 6.73 lakh corona-positive cases.

Top Indian microbiologists were hopeful in March that after the 21-day lockdown, as summer approaches, the rise in temperature would play an important role in preventing the drastic spread of COVID-19 virus in India.

Several virologists hinted that by June this year, the impact of COVID-19 would be less than what it appeared in March-April.

The claims have fallen flat as the virus is mutating fast, becoming more potent than ever.

According to experts, the novel coronavirus is a new virus whose seasonality and response to hot humid weather was never fully understood.

"The theory was based on the fact that high temperatures can kill the virus as in sterilisation techniques used in healthcare. But these are controlled environment conditions. There are many other factors besides temperature, humidity which influence the transmission rate among humans," Dr Anu Gupta, Head, Microbiologist and Infection Control, Fortis Escorts Heart Institute, told IANS.

There is no built-up immunity to COVID-19 in humans.

"Also, asymptomatic people might be passing it to many others unknowingly. New viruses tend not to follow the seasonal trend in their first year," Gupta emphasized.

Globally, as several countries are now experiencing hot weather, the World Health Organization (WHO) reported a record hike in the number of coronavirus cases, with the total rising by 2,12,326 in 24 hours in the highest single-day increase since COVID-19 broke out.

So far over 11 million people worldwide have tested positive for the disease which has led to over 5,25,000 deaths, according to data from Johns Hopkins University. The US remained the worst-hit country with over 28 lakh cases, followed by Brazil with 15.8 lakh.

According to Sandeep Nayar, Senior Consultant and HOD, Respiratory Medicine, Allergy & Sleep Disorders, BLK Super Speciality Hospital in New Delhi, whether temperature plays a role in COVID-19 infection is highly debated.

One school of thought said in the tropical regions of South Asia, the virus might not thrive longer.

"On the other hand, another school of thought has found that novel Coronavirus can survive in a hot and humid environment and tropical climate does not make a difference to the virus. According to them, this is what distinguishes the novel coronavirus from other common viruses, which usually wane in hot weather," stressed Nayar.

Not much has been studied in the past and no definite treatment or vaccine is available to date.

"Every day, new properties and manifestation of the disease come up. As of now, the only way to prevent this monster is by taking appropriate precautions. Hand hygiene, social distancing, cough etiquette and face masks definitely reduce spread of COVID-19 infection," Nayar told IANS.

Not just top Indian health experts, even Indian-American scientists had this theory in mind that sunshine and summer may ebb the spread of the coronavirus.

Ravi Godse, Director of Discharge Planning, UPMC Shadyside Pennsylvania in the US told IANS in April: "In the summer, the humidity can go up as well, meaning more water drops in the air. If the air is saturated with water and somebody sneezes virus droplets into such air, it is likely that the droplets will fall to the ground quicker, making them less infectious. So the short answer is yes, summer/sunshine could be bettera.

According to Dr Puneet Khanna, Head of Respiratory Medicine and Pulmonology, Manipal Hospital, Delhi, COVID-19 death rates are not too different in tropical countries but since the disease affected them late it was yet to show its peak in these areas.

"The virus can survive well in hot and humid countries and this is proven now," he stressed.

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