Tue, Mar 28, 2017 | updated 09:49 AM IST

Dietary restriction can add years to your life

Updated: Jul 15, 2016 09:23 IST

Washington D.C, Jul 15 (ANI): Boosting lifespan is as simple as limiting your food intake, suggests a new study.

The study from the Sanford Burnham Prebys Medical Discovery Institute (SBP) represents a major advance in understanding how dietary restriction leads to longevity in many species, including humans.

"In this study, we used the small roundworm C. elegans as a model to show that autophagy in the intestine is critical for lifespan extension," said senior author Malene Hansen. "We found that the gut of dietary-restricted worms has a higher than normal rate of autophagy, which appears to improve fitness in multiple ways preserving intestinal integrity and maintaining the animal's ability to move around."

In this study the team wanted to understand how dietary restriction impacts autophagy in the intestine, whose proper function is already known to be important for long life.

"The strain of worms we used, called eat-2, is genetically predisposed to eat less, and they live longer than normal worms, so they provide an ideal model in which to investigate how dietary restriction extends lifespan," said lead author Sara Gelino, adding "We found that blocking autophagy in their intestines significantly shortened their lifespans, showing that autophagy in this organ is key for longevity."

The results led the team to examine how inhibiting autophagy impacts the function of the intestine. They found that while normal worms' gut barriers become leaky as they get older, those of eat-2 worms remain intact. Preventing autophagy eliminated this benefit, which indicates that a non-leaky intestine is an important factor for long life.

"How intestinal integrity relates to longevity is not clearly understood," Hansen commented. "It's possible that the decline in the gut's barrier function associated with normal aging might let damaging substances or pathogens into the body."

The research team also observed that turning off autophagy in the intestine made the slow-eating, long-lived worms move around less.

The study is published in PLoS Genetics. (ANI)

Washington D.C. [USA], Mar. 26 (ANI): Attention dog lovers! With just six months of training, a German Shepherd can accurately detect breast cancer, a study finds.

Full Story >>

Washington D.C. [USA], Mar. 26 (ANI): A recent study has found that a sleepless night impairs your ability to interpret subtle expressions of happiness and sadness.

Full Story >>

Washington D.C. [USA], Mar. 26 (ANI): When it comes to new moms' workout programs, less is more and so, according to a Kansas State University researcher, new moms may need a bit more flexibility and support to ease back into exercise after giving birth.

Full Story >>

New approach to diagnosing mental disorders

Updated: Mar 26, 2017 10:48 IST

Washington D.C. [USA], Mar. 26 (ANI): A consortium of psychiatrists and psychologists has proposed a new approach to diagnosing mental disorders.

Full Story >>

Washington D.C. [USA], Mar. 26 (ANI): Boosting natural brain opioids may be a better way to treat anxiety, according to a recent study.

Full Story >>

Fecal transplant offers hope for autistic kids

Updated: Mar 26, 2017 09:37 IST

Washington D.C. [USA], Mar. 26 (ANI): In this new era of medical therapy dawning, fecal transplants are poised to help fight a range of conditions, from deadly superbugs to obesity and now, autism is in the firing line.

Full Story >>

Thiruvallur (Chennai) [India], Mar. 25 (ANI): A highly contagious viral disease of cattle and swine, Foot-and-Mouth Disease (FMD) has affected Karani village on the outskirts of Tamil Nadu's Tiruvallur district.

Full Story >>

New Delhi [India], Mar. 25 (ANI): The findings of the National Family Health Survey 2015-16 confirm what we all knew from clinical evidence - that hypertension has become a major health concern among the Indian population, with as many as 22% Indians hypertensive.

Full Story >>

Washington D.C. [USA], Mar. 25 (ANI): A prescription weight-loss medication can decrease the urge to use opiates such as oxycodone, according to a recent study.

Full Story >>

Washington D.C. [USA], Mar. 25 (ANI): A team of researchers has discovered a new gene that is associated with Tau accumulation, which is one of the defining features of Alzheimer disease (AD).

Full Story >>

Washington D.C. [USA], Mar. 25 (ANI): All it takes is the flip of a protein "switch" within the tiny wire-like capillaries of the brain to increase the blood flow that ensures optimal brain function.

Full Story >>

Washington D.C. [USA], Mar. 25 (ANI): Scientists have found that stem cell therapy repairs damaged lungs - raising hopes of a cure for the crippling chronic obstructive pulmonary disease (COPD) and cystic fibrosis.

Full Story >>

New method can cut dental implant failure

Updated: Mar 25, 2017 09:34 IST

Washington D.C. [USA], Mar. 25 (ANI): A team of researchers has come up with a new method to reduce dental implant failure.

Full Story >>

Washington D.C. [USA], Mar. 25 (ANI): A team of researchers has come up with a fluorogenic probe that can detect the activity of multidrug-resistant pathogens in an assay system.

Full Story >>

Virus hydrophobicity can help purify vaccines

Updated: Mar 25, 2017 07:46 IST

Washington D.C. [USA], Mar. 25 (ANI): A team of researchers has found that hydrophobic proteins on virus surfaces can help purify vaccines.

Full Story >>

Washington D.C. [USA], Mar. 25 (ANI): A team of researchers has shed light on why survivors of childhood brain tumours may be prone to heart disease, stroke, type 2 diabetes and early death.

Full Story >>

New Delhi [India], Mar. 24 (ANI): Continuing its efforts to raise awareness on tuberculosis and its diagnosis, Division of Clinical Microbiology & Molecular Medicine Department of Laboratory Medicine, AIIMS, and BD (Becton Dickinson India) for the third consecutive year organized a symposium today on "challenges in diagnosis and eradication of tuberculosis".

Full Story >>

New Delhi [India], Mar. 24 (ANI): On the solemn occasion of World Tuberculosis (TB) Day, Members of Parliament, policymakers, TB patients, survivors, and citizens of the civil society gathered at India Gate on Thursday, March 23 to pay tribute to the nearly five lakh lives lost due to this disease last year.

Full Story >>

New Delhi [India], Mar. 24 (ANI): Emergence of multi drug resistant TB and complications aggravated by high rates of co-infection with HIV-AIDS has renewed the threat of TB epidemic in India. With widespread prevalence of the infection, children experience a serious risk of contracting Tuberculosis, especially if they are under-nourished.

Full Story >>

New Delhi [India], Mar. 24 (ANI): Tuberculosis can affect any age, caste or class and it is one of the top 10 causes of death across the globe, ranking above HIV and malaria.

Full Story >>