Liver disease drug may help treat Alzheimer’s, says study

Agencies
September 3, 2018

London, Sept 3: A drug which has been used to treat liver disease for decades could help restore cells damaged by Alzheimer’s, a study claims. Researchers from the University of Sheffield in the UK discovered the drug ursodeoxycholic acid (UDCA) improves mitochondrial dysfunction — which is known to be a causative factor for both sporadic and familial Alzheimer’s disease. Mitochondria play a pivotal role in both neuronal cell survival and death as they regulate energy metabolism and cell death pathways acting as a cell’s battery, according to the research published in the Journal of Molecular Biology.

Mitochondrial abnormalities have been identified in many cell types in Alzheimer’s disease, with deficits occurring before the development of the classical pathological aggregations, researchers said. The energy changes have been found in many different cells from people with Alzheimer’s, they said. “For the first time in actual Alzheimer’s patient tissue this study has shown that the drug UDCA acid can boost the performance of the cells’ batteries, the mitochondria,” said Heather Mortiboys, a senior research Fellow at the University of Sheffield.

“We also found that the drug, which is already in clinical use for liver disease, acts by changing the shape of the batteries which could tell us more about how other drugs can be beneficial in Alzheimer’s,” Mortiboys said. “Most importantly we found the drug to be active in cells from people with the most common type of the devastating disease — sporadic Alzheimer’s — which could mean it has potential for thousands of patients,” said Mortiboys.

As the drug is already in clinical use for liver disease; this speeds up the potential time it could take to get this drug to the clinic for patients, researchers said. The research also found the drug changed the shape of mitochondria by redistributing Dynamin-related protein 1 (Drp1) to the mitochondria in people with Alzheimer’s skin cells.

Drp1 is a regulator of mitochondrial shape and locates at the mitochondria to initiate fission events. It is thought this could have neuroprotective effects in Alzheimer’s disease, researchers said. The study suggests this pathway could be manipulated by drugs which are then neuroprotective in patients themselves, they said.

Comments

sonal sharma
 - 
Saturday, 8 Sep 2018

Protein-energy malnutrition is a common factor in chronic liver diseases like liver cirrhosis.These conditions are characterized by a decreased concentration of Branched Chain Amino Acids (BCAA) in the body. BCAA regulates the protein synthesis & protein degradation.

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Agencies
March 16,2020

New Delhi, Mar 16: A recent survey across 140 districts of the country shows that about 54 per cent of Indians are finding travelling to be unsafe as the deadly coronavirus (COVID-19) pandemic sweeps globally.

The big worry that people have is community transmission, something that researchers from around the world have approximated at 10 per cent of total infections and more common in places like Wuhan in China, South Korea, Iran and Italy.

The months of March to June have historically been high travel season for most Indians, largely due to the summer vacations in schools. "But it seems that Indians do not want to take a chance with this rather scary virus and are either cancelling or postponing their travel plans," concluded the survey by LocalCircles.

The survey gathered more than 22,000 responses from participants in tier one, two and three cities. It said 48 per cent Indians plan to cancel their international business travel for the next four months.

Besides, nearly 38 per cent of respondents said they had to pay cancellation fee to the website, travel agent, airline or railways.

"These are testing times for the entire travel and tourism industry -- airlines, hotels, travel agents as well as small tour and taxi operators. The best solution at this point is to adjust cost structures, stay flexible and work with a collective approach to minimise the period of impact to both citizens and business," said LocalCircles.

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Agencies
February 27,2020

Washington D.C, Feb 27: New research shows that adults who have low fruit and vegetable intake are more likely to be diagnosed with an anxiety disorder.

"For those who consumed less than 3 sources of fruits and vegetables daily, there was at least at 24% higher odds of anxiety disorder diagnosis," says the lead author of the Canadian Longitudinal Study, Karen Davison, who is a health science faculty member, nutrition informatics lab director at Kwantlen Polytechnic University, (KPU) and North American Primary Care Research Group Fellow.

"This may also partly explain the findings associated with body composition measures. As levels of total body fat increased beyond 36%, the likelihood of anxiety disorder was increased by more than 70%," states co-author Jose Mora-Almanza, a Mitacs Globalink intern who worked with the study at KPU.

"Increased body fat may be linked to greater inflammation. Emerging research suggests that some anxiety disorders can be linked to inflammation," says Davison.

In addition to diet and body composition measures, the prevalence of anxiety disorders also differed by gender, marital status, income, immigrant status and several health issues.

An important limitation of the study was that the assessment of anxiety disorders was mostly based upon self-reporting of a medical diagnosis.

"It is estimated that 10% of the global population will suffer from anxiety disorders which are a leading cause of disability," says Karen Davison

"Our findings suggest that comprehensive approaches that target health behaviours, including diet, as well as social factors, such as economic status, may help to minimize the burden of anxiety disorders among middle-aged and older adults, including immigrants," she concluded.

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Agencies
January 12,2020

Washington D.C., Jan 12: Disruption in one night's sleep can lead to getting Alzheimer's disease, a recent study has stated.

The interruption in the sound sleep for a single night aggravates the level of tau protein in any young male's body, thus gives rise to the chances of developing the disease.

According to CNN, the report was published on Wednesday in neurology, the medical journal of the American Academy of Neurology.

"Our study focuses on the fact that even in young, healthy individuals, missing one night of sleep increases the level of tau in blood suggesting that over time, such sleep deprivation could possibly have detrimental effects," says study author Dr Jonathan Cedernaes, a neurologist at Uppsala University in Sweden.

As defined by the Alzheimer's Association, tau is the name of a protein that helps in stabilizing the internal structure of the brain's nerve cells. An abnormal build-up of tau protein in the body can end up in causing interior cells to fall apart and eventually developing Alzheimer's.

"When you get more of that deep sleep and you get the REM sleep in the normal amounts, that improves clearance of abnormal proteins which we think is good," said Mayo Clinic neurologist Dr Donn Dexter, not the study author but a fellow of the American Academy of Neurology.

Earlier studies have also shown that getting deprived of sleep can allow higher tau development and accumulation. Thus that poor sleep can hasten the development of cognitive issues.

Researchers caution that the study is small and inconclusive, and acknowledged they were not able to determine what the increased levels might mean.

"This study raises more questions than answers," agreed Dexter on a concluding note, sharing, "What this is telling us is that we have to dig more deeply. Despite something we do for a third of our lives, we know so little about sleep and we're learning every day, particularly when it comes to sleep and dementia."

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