In a significant achievement for identifying neurodegenerative diseases early, a team of US researchers has developed a new artificial intelligence (AI) tool that helps clinicians detect brain activity patterns linked to nine types of dementia using a single and widely available scan.

The tool, StateViewer, not only helped in early detection but also provided accurate diagnosis -- it identified the dementia type in 88 per cent of cases, including Alzheimer's disease.

It also enabled clinicians to interpret brain scans nearly twice as fast and with up to three times greater accuracy than standard workflows, according to the research, published online in the journal Neurology.

Researchers from the Mayo Clinic trained and tested the AI on more than 3,600 scans, including images from patients with dementia and people without cognitive impairment.

Even though the positivity rate declined by 7.5 per cent over the past two days, Covid-19 cases continue to rise in Manipur, where the cumulative number of active cases stood at 217, officials said on Saturday.

According to a senior official with Manipur Health and Family Welfare Department, of the 217 active cases, 146 were reported in Imphal West district, 52 in Imphal East district, nine in Thoubal district, six in Bishnupur, two in Tengnoupal and one each in Jiribam and Chandel district.

A portable DNA sequencing device may be a key genomic surveillance tool for detecting hotspots of antibiotic resistance in animals, and the environment, according to a new study.

In the pilot project, researchers from the Food and Agriculture Organization of the UN, Indonesia’s Ministry of Agriculture, and Arizona State University (ASU) in the US tested the handheld DNA sequencing device to check antibiotic resistance across six chicken slaughterhouses.

The global team collected samples from both wastewater and surrounding rivers in Indonesia’s Greater Jakarta area.

The study found signs that drug-resistant E. coli bacteria -- a key indicator of antibiotic resistance -- from slaughterhouse wastewater may be reaching nearby rivers.

In many cases, downstream sites had higher levels of resistant E. coli than upstream, pointing to a possible route for resistance to spread from animal waste into the environment.

Love your morning cup of coffee? A new study has shown that it may not only energise you but also help slow down ageing and boost longevity.

Caffeine has long been linked to potential health benefits, including reduced risk of age-related diseases.

However, the study led by researchers from Queen Mary University of London in the UK revealed how caffeine works inside human cells, and what exactly its connections are with nutrient and stress-responsive gene and protein networks.

The researchers found that caffeine affects ageing by tapping into an ancient cellular energy system.

They showed that caffeine works by activating an important system called AMPK -- a cellular fuel gauge that is evolutionarily conserved in yeast and humans.

“When your cells are low on energy, AMPK kicks in to help them cope,” said Dr Charalampos (Babis) Rallis, Reader in Genetics, Genomics, and Fundamental Cell Biology at Queen Mary’s University of London’s Centre for Molecular Cell Biology.

A team of Israeli and US researchers have developed a simple blood test that can detect a person's risk of developing leukaemia -- a deadly blood cancer.

In the study, published in the journal Nature Medicine, the researchers suggested that this test may replace the current more invasive method of bone marrow sampling used to diagnose certain blood cancers, news agency reported.

The team led by researchers from Weizmann Institute of Science in Israel focused on myelodysplastic syndrome (MDS) -- an age-related condition in which blood-forming stem cells do not develop properly.

MDS can lead to severe anaemia and may progress to acute myeloid leukaemia, one of the most common types of blood cancer in adults.

In a major scientific breakthrough, researchers from IIT (BHU) in Uttar Pradesh have developed a miniaturised, self-reporting diagnostic device that can detect early-stage bone cancer with high precision.

The first-of-its-kind sensor detects osteopontin (OPN) -- a key biomarker for bone cancer.

The device is reagent-free, portable, and cost-effective and is ideal for rural healthcare, said the research team led by Dr. Pranjal Chandra from the School of Biochemical Engineering.

The device works much like a glucose metre and enables quick, accurate, and on-the-spot detection, even in resource-limited settings.

Zimbabwe has recorded an increase in AIDS-related deaths in the first half of this year, Health and Child Care Minister Douglas Mombeshora said on Friday.

Addressing a media workshop on HIV reporting and stigma reduction in the Zimbabwean capital, Harare, the minister said that between January and June this year, Zimbabwe recorded 5,932 AIDS-related deaths, compared to 5,712 during the same period last year.

"An increase of 220 deaths is a reminder that our work is not done," he said, without specifying the main cause of the increase.

According to Mombeshora, Zimbabwe has made progress in the fight against HIV/AIDS, particularly in meeting the UNAIDS 95-95-95 targets, but he warned that the gains remain fragile and are under threat from various challenges, including resource constraints, stigma, and discrimination.

Mongolia has recorded 232 new cases of measles infection over the past 24 hours, bringing the national caseload to 10,065, the National Center for Communicable Diseases (NCCD) said on Friday.

Meanwhile, 260 more measles patients have recovered from the disease, bringing the total number of recoveries to 8,405, the NCCD said in a statement.

The majority of new measles infections were among school-age children who had only one shot of the measles vaccine, it said.

In this regard, the NCCD advised parents to protect their children from a potentially severe disease by getting them two doses of the measles vaccine, news agency reported.

According to the World Health Organization, measles is a highly contagious disease caused by a virus. It spreads easily when an infected person breathes, coughs or sneezes. It can cause severe disease, complications, and even death.

An international team of scientists has developed an artificial intelligence (AI) tool that could revolutionise cancer treatment by mapping cellular diversity within tumours.

The innovation tackles tumour heterogeneity in oncology, where varied cell populations cause treatment resistance and recurrence, news agency reported.

The AAnet AI tool, developed by the Sydney-based Garvan Institute of Medical Research in collaboration with the Yale School of Medicine in the US, uses deep learning to study gene activity in single cancer cells.

It finds five different cell types within tumours, each with its own behaviour and risk of spreading. This helps doctors understand cancer better than older methods, which treated all tumour cells the same, said the multinational research team.

Sleep patterns are significantly influenced by the day of the week, the season, and geographic locations, according to a study.

The study, led by researchers from Flinders University in South Australia, is based on data from more than 116,000 adults and over 73 million nights of sleep. The team used an under-mattress device to objectively track sleep duration and timing across 3.5 years, news agency reported.

The study finds that sleep is shaped not just by personal habits, but by environmental factors like daylight, temperature, and weekly routines.

"Our findings underscore the seasonal nature of human sleep, and that it is influenced by demographics and geography," said Hannah Scott, a sleep health expert at Flinders University.