There Is Now A Sixth Taste – And It Explains Why We Love Carbs

As any weight-watcher knows, carb cravings can be hard to resist. Now there’s evidence that carbohydrate-rich foods may elicit a unique taste too, suggesting that “starchy” could be a flavour in its own right.

It has long been thought that our tongues register a small number of primary tastes: salty, sweet, sour and bitter. Umami – the savoury taste often associated with monosodium glutamate – was added to this list seven years ago, but there’s been no change since then.

However, this list misses a major component of our diets, says Juyun Lim at Oregon State University in Corvallis. “Every culture has a major source of complex carbohydrate. The idea that we can’t taste what we’re eating doesn’t make sense,” she says.

Read more: There Is Now A Sixth Taste – And It Explains Why We Love Carbs

Mmm… taste that delicious starch

Jonathan Knowles/Getty

Source: NewScientist

Watch Video: Scientists have discovered a sixth taste!

Spike In Teen Obesity Explained By Decreased Calorie Burn In Puberty

The rise in obesity rates during adolescence may be due to a substantial fall of calories burned during the rapid growth phase of puberty, finds a new study by the University of Exeter Medical School in the United Kingdom.

According to the Centers for Disease Control and Prevention, around 20 percent of adolescents age 12-19 years are obese in the United States. Obese teenagers are more likely to have prediabetes, a condition in which blood glucose levels indicate a high risk for the development of diabetes.

Adolescents who are obese are also at a greater risk for bone and joint problems, sleep apnea, social and psychological problems, and they are more likely to have risk factors for cardiovascular diseases, such as high cholesterol or high blood pressure.

Read more: Spike In Teen Obesity Explained By Decreased Calorie Burn In Puberty

During puberty, the number of calories girls and boys burn while at rest plummets.

Source: MedicalNewsToday

Short-Chain Fatty Acids In Control Of Body Weight And Insulin Sensitivity

The connection between the gut microbiota and the etiology of obesity and cardiometabolic disorders is increasingly being recognized by clinicians. Our gut microbiota might affect the cardiometabolic phenotype by fermenting indigestible dietary components and thereby producing short-chain fatty acids (SCFA). These SCFA are not only of importance in gut health and as signaling molecules, but might also enter the systemic circulation and directly affect metabolism or the function of peripheral tissues.

In this Review, we discuss the effects of three SCFA (acetate, propionate and butyrate) on energy homeostasis and metabolism, as well as how these SCFA can beneficially modulate adipose tissue, skeletal muscle and liver tissue function.

Read more: Short-Chain Fatty Acids In Control Of Body Weight And Insulin Sensitivity

Short-Chain Fatty Acids (SCFA) and liver function.

Source: NatureReviewsEndocrinology

Why Cockroach Milk Is the New Health Obsession

Health freaks will go to extreme lengths in the name of nutrients (and staying one step ahead of the trend), but I'm not afraid to say it: The latest "superfood" is just plain gross.

Taking stomach-churning to a whole new level is cockroach milk, which is comprised of the nutrient-rich milk crystals found inside the Pacific Beetle cockroach. This species uses said protein crystals as food for cockroach infants, but new research suggests that it could be beneficial to humans, too, as it's one of the most nourishing and highly caloric substances on the planet. It boasts four times as much protein as cow's milk, but also contains essential amino acids that promote cell growth, lipids that keep our bodies healthy, and sugars that fuel energy.

Read more: Why Cockroach Milk Is the New Health Obsession

Source: msn.com/en-ca/health/wellness

Watch: Cockroach Milk - The Next Superfood?

How Reliable Is The Glycemic Index?

Individual response to glycemic index values vary so much that it may not be useful in indicating blood sugar response, says research published in the American Journal of Clinical Nutrition.

The glycemic index (GI) of a food indicates the speed with which blood sugar can be expected to rise after a person eats it. Each food gets a score out of 100 on the index, for example, 40 for baked beans.

Glycemic load is a measure that applies the GI to a portion of food. The glycemic load for a 150-gram serving of baked beans would be 6.

GI is used to help people with diabetes to control their blood sugar. Some food labels carry GI measurements. More recently, a number of popular diets have been based on GI. Lists are available for people to check the GI and glycemic load of different foods.

Read more: How Reliable Is The Glycemic Index?

People use the glycemic index as a guide to suitable foods, but is it a valid measure?

Source: medicalnewstoday

Validating the Performance of Body Fluid Specimens

In health care, the analysis of body fluids plays an important role in the diagnosis and management of a wide variety of conditions. Traditionally, clinical laboratorians have provided analysis of body fluid specimens without question while also recognizing the sometimes difficult work that goes into their collection. As standards for method validation and laboratory developed tests (LDTs) evolve, the analysis of body fluids is receiving increased attention from both laboratories and regulatory bodies.

The clinical laboratory’s overarching goal is to ensure accurate test results from all specimens. Therefore, it is the responsibility of every laboratory to investigate the analytical performance of the tests performed on the various fluid types accepted and to provide a context for result interpretation.

Read more: Validating the Performance of Body Fluid Specimens

Source: medlabmag

Serum Albumin Levels Associated with Mortality in Hemodialysis Patients

Serum albumin is commonly used as a proxy for nutritional status, as well as a marker of inflammation and a low serum albumin concentration is not only indicative of protein energy wasting in dialysis patients, but it is also a powerful predictor of the mortality risk in this population.

Several clinical conditions are associated with low serum albumin levels in dialysis patients, including infectious and inflammatory diseases, fluid overload, inadequate dialysis, severe co-morbidity, and taste change. Therefore, regular monitoring of serum albumin levels is useful for predicting outcomes in dialysis patients.

Read more: Enlarged Prostate: Molecular Mechanism Clue May Explain Link To Inflammation

The Hitachi 7600–210 modular clinical biochemistry analyzer (Photo courtesy of Hitachi).

Source: labmedica

Enlarged Prostate: Molecular Mechanism Clue May Explain Link To Inflammation

A new study reveals an important molecular clue about how inflammation may lead to prostate enlargement or benign prostatic hyperplasia. The researchers believe their discovery may also lead to ways of overcoming resistance to androgen-targeted treatment for the condition.

Enlarged prostate or benign prostatic hyperplasia (BPH) is a common condition in older men where the prostate gland is enlarged and not cancerous.

As the prostate gland enlarges, it presses against and pinches the urethra, the tube that allows urine to leave the bladder. Also, the bladder wall gradually thickens and the bladder may get weaker and lose the ability to empty completely.

Read more: Enlarged Prostate: Molecular Mechanism Clue May Explain Link To Inflammation

Enlarged prostate or benign prostatic hyperplasia (BPH) is a common condition in older men.

Source: medicalnewstoday

Two-Gene Panel Differentiates between Pediatric Bacterial and Viral Infections

A two-gene panel was shown to differentiate between viral and bacterial infections in children with fevers with 95-100% accuracy.

Since clinical features do not reliably distinguish bacterial from viral infection, many children worldwide receive unnecessary antibiotic treatment, while bacterial infection is missed in others. To solve this problem, investigators at Imperial College London (United Kingdom) sought to identify a blood RNA expression signature that could distinguish bacterial from viral infection in febrile children.

Read more: Point-Of-Care Hemoglobin Testing: Methods And Relevance To Combat Anemia

An example of an approximately 40,000 probe spotted RNA microarray with enlarged inset to show
detail (Photo courtesy of Wikimedia Commons).

Source: labmedica

Cesarean Delivery May Increase Risk of Childhood Obesity

Children born by cesarean delivery may have an increased risk of becoming obese, compared with their siblings born by vaginal delivery, says study. This finding may have significant implications for the almost 1.3 million cesarean births per year in the United States.

Cesarean delivery is the most common U.S. surgical procedure and accounts for one third of deliveries nationwide.

The most common risk to children born via cesarean delivery is respiratory problems, while increasing evidence suggests children may also have an increased risk of other adverse health outcomes as adults.

Read more: Cesarean Delivery May Increase Risk of Childhood Obesity

Cesarean delivery can increase a child's risk of obesity into adulthood, study finds.

Source: medicalnewstoday