Low-dose CT chest scans could help detect pneumonia in at-risk patients while exposing them to only small amounts of radiation, a new study has found. The research, published in Radiology: Cardiothoracic Imaging, shows that ultra-low-dose scans can effectively detect pneumonia in patients with compromised immune systems, enabling doctors to treat the infection before it becomes life-threatening. According to the researchers, these scans expose patients to just 2% of the radiation dose used in a standard CT scan.

"This study paves the way for safer, AI-driven imaging that reduces radiation exposure while preserving diagnostic accuracy,” lead researcher Dr Maximiliano Klug, a radiologist with the Sheba Medical Center in Ramat Gan, Israel, said in a news release. He added that CT scans are the gold standard for detecting pneumonia but there are concerns regarding the risk posed by repeated exposure to radiation. There is a solution- ultra-low-dose CT scan. However, the problem is that these scans can be grainy and hard to read, researchers said.

Study Gives Solution To This

To overcome that, Klug's team developed an AI program that could help "de-noise" low-dose scans, making them sharper and easier to read. Between September 2020 and December 2022, 54 patients with compromised immune systems who had fevers underwent a pair of chest CT scans -- a normal dose scan and an ultra-low-dose scan. The AI program cleaned up the low-dose scan, and then both sets of images were given to a pair of radiologists for assessment. Radiologists had 100% accuracy in detecting pneumonia and other lung problems with the AI-cleaned low-dose scans, but 91% to 98% accuracy in examining the scans that hadn’t been improved through AI, results show.

"This pilot study identified infection with a fraction of the radiation dose," Klug said. "This approach could drive larger studies and ultimately reshape clinical guidelines, making denoised ultra-low dose CT the new standard for young immunocompromised patients.

How Can You Detect Pneumonia?

Pneumonia is a lung infection that causes the air sacs in the lungs to fill with fluid or pus and can be caused by bacteria, viruses, or fungi. The symptoms can range from milk to severe, which includes:

Coughing with or without cough

Fever

Chills

Trouble breathing

Chest pain, especially when breathing deeply or coughing

Sweating or chills

Rapid heart rate

Loss of appetite

Bluish skin, lips, and nails

Confusion.

How to detect Pneumonia in coughing newborns and toddlers?

Pneumonia can severely affect newborns and young children as their lungs are comparatively more sensitive. As per Dr Goyal, young children can cough for various reasons including seasonal infections and tonsillitis, which is very common in this age group. But if they look visibly irritable and have poor sleep patterns, then parents must reach out to an expert. "I am not saying that parents must visit a hospital but any local paediatrician would be able to detect pneumonia in your kid.

A combination of two cancer drugs cut the risk of death by 58% in people who have advanced small cell lung cancer, an aggressive form of the disease, according to results from a Phase 3 clinical trial.

The combination pairs Imdelltra (tarlatamab), developed by Amgen, with Imfinzi (durvalumab), an immunotherapy made by AstraZeneca.

In the DeLLphi-305 trial, patients who received both drugs lived a median of 21.1 months, compared to 12.7 months among those who received Imfinzi alone.

The findings were presented at the European Society for Medical Oncology (ESMO) Congress in Madrid on October 24, 2026, and published in The New England Journal of Medicine.

More About Imdelltra-Imfinzi Trial

Also read: 1 In 5 US Lung Cancer Patients Never Smoked: Report Highlights Hidden Risk Factors

The results indicated that using tarlatamab earlier in treatment could be beneficial. It is currently approved in the United States for adults with extensive-stage small cell lung cancer that has progressed during or after platinum-based chemotherapy.

The trial examined its application as a maintenance treatment after patients had completed initial chemotherapy and immunotherapy without their cancer progressing.

“For a disease where durable survival has remained extremely difficult to achieve, the magnitude and consistency of benefit in DeLLphi-305 are striking,” said Jacob Sands, an associate chief of the Lowe Center for Thoracic Oncology at Dana-Farber Cancer Institute and an investigator in the trial.

The Phase 3 trial included 563 patients with extensive-stage small cell lung cancer whose disease had not progressed after initial treatment with Imfinzi, platinum-based chemotherapy and etoposide. The main findings were:

- 58% lower risk of death: The combination reduced the risk of death compared to Imfinzi alone.

- 21.1 months median overall survival: This compared to 12.7 months in the Imfinzi-only group.

- Nearly 80% alive at one year: About 79% of patients receiving the combination were alive after 12 months, compared to 53% of those receiving Imfinzi alone.

- 66% lower risk of progression or death: Median progression-free survival was 7.4 months with the combination, versus 1.9 months with Imfinzi alone.

These results indicate that the combination improved both overall survival and the time patients lived without their cancer progressing.

More About The Two Drugs

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Imdelltra, also known as tarlatamab, is a bispecific antibody that brings immune system T cells into contact with cancer cells, helping the immune system recognise and attack them.

Imfinzi, or durvalumab, blocks the PD-L1 protein, which some cancer cells misuse to evade immune attack.

The two drugs therefore target different aspects of the immune response. Researchers hope that combining them will improve the body's ability to control the cancer.

Jay Bradner, Amgen's executive vice-president of research and development, said, “These results represent an unprecedented advance for patients with extensive-stage small cell lung cancer, demonstrating a magnitude of survival benefit rarely seen in this aggressive disease.”

Side effects related to grade 3 or higher treatment occurred in 20.9% of the patients who received the combination, compared to 10.8% of those receiving Imfinzi alone.

Cytokine release syndrome, an inflammatory reaction caused by immune system activation, occurred in 49.6% of patients who received Imdelltra. Most cases were mild or moderate, and one was classified as severe. No deaths were reported.

The findings provide evidence that adding tarlatamab to maintenance immunotherapy can extend survival in extensive-stage small cell lung cancer. The researchers also reported benefits among patients with brain or liver metastases.

Despite promising findings, researchers say that the trial focused on a particular cancer type and treatment. Regulatory authorities will need to examine the evidence adopting this combination for earlier stage of treatment.

The legalisation of recreational marijuana in the United States may have led to increase in hospitalisations for multiple cardiovascular hospitalisations, including heart attacks, heart failure and abnormal heart rhythms, according to a new study published in BMJ Open.

Researchers studied more than 50 million hospital records from 2012 to 2018 and compared cardiovascular hospitalisation patterns in the western United States, where recreational cannabis sales began earlier, with trends in other regions.

They found that hospital admissions for three cardiovascular conditions increased faster in the West after legalisation, sparking questions about the health consequences of legalising recreational marijuana.

The study, titled Cannabis legalisation and cardiovascular hospitalisations in the United States: nationwide difference-in-differences analysis, 2012–2018, was led by Samuel D. Slavin and colleagues.

It analysed records of hospitalisations for acute heart failure, heart attacks, atrial fibrillation, ischaemic stroke, venous thromboembolism and ventricular tachycardia.

Cardiovascular Hospitalisations Increased After Marijuana Legalisation

Also read: Trump Administration Reclassifies Marijuana As A Schedule 3 Drug, Moving It Closer To Prescription Painkillers

The analysis found that, for each additional year of recreational cannabis sales in the western region, hospitalisation rates rose faster than in other regions for these three heart conditions:

• Atrial fibrillation: approximately 2.3% faster per year.
• Heart failure: approximately 3.7% faster per year.
• Heart attacks: approximately 3.1% faster per year.

Atrial fibrillation is an abnormal heart rhythm that can increase the risk of stroke. Heart failure occurs when the heart cannot pump blood effectively to meet the body's needs, while a heart attack occurs when blood flow to the heart is blocked.

Hospitalisation rates for the other conditions also increased, but the differences were not as significant. The researchers say that their study addresses a gap in existing research.

“While several studies have examined the association of recreational cannabis legalisation on psychiatric conditions, substance use, emergency visits, and traffic accidents, ours is the first study to examine the association with cardiovascular hospitalisations,” they wrote.

Cannabis And Heart Health

Cannabis contains compounds that can affect the cardiovascular system. Tetrahydrocannabinol (THC), its main psychoactive component, can increase heart rate and affect blood pressure.

Researchers have also examined links between cannabis use, blood vessel function and blood clot formation. However, cardiovascular effects may vary depending on the product, frequency of use and method of consumption.

The study suggests that legalisation may have wider health implications because it can change the availability and use of cannabis products across a population. However, the researchers did not directly state that cannabis use caused the hospitalisations observed.

The findings show an association between legalisation and changing hospitalisation trends, not cause and effect proof.

The analysis compared regional hospitalisation patterns rather than tracking individual cannabis users. Researchers could not distinguish between different methods of cannabis consumption, examine trends separately for each state or fully account for changes in illegal cannabis use.

The authors said, “While an observational study cannot prove causality, our findings point to potential adverse effects of recreation legalisation on population health.”

They added, “Globally, our findings support a cautious approach to legalisation laws accompanied by data collection on [cardiovascular] outcomes.”

A research team in Switzerland, including Indian scientists, has developed an USB-sized electric implantable device that lowers blood sugar by converting excess glucose into a substance the body can eliminate.

The technology, tested in mice with diabetes and obesity, may offer a new way to managing blood glucose without relying on insulin or other glucose-lowering drugs, sparking hope for people with diabetes to live drug-free, healthier lives.

The findings were published in the journal Science on October 22, 2026, in a study titled Wireless Electrocatalytic Closed-Loop System for Drug-Free Management of Diabetes.

The research was spearheaded by Martin Fussenegger, professor of biotechnology and bioengineering, ETH Zurich's Department of Biosystems Science and Engineering.

Fussenegger described the approach as a departure from conventional diabetes treatment.

“For decades, we have treated diabetes by telling the body how to manage glucose. We are now showing that we can take control of glucose directly, using electronics rather than drugs,” he told Science. “And the catalyst only activates when glucose levels are too high.”

Also read: Is ‘Ozempic Face’ Influencing The Beauty Industry? Global Cosmetic Brand Highlights A New Trend Amid GLP-1 Boom

How Does The Electric Implant Work?

The device, called ECHO (Electrocatalytic Closed-loop Health Optimization), uses a catalyst made from graphite felt, gold nanoclusters and tiny platinum particles which is powered electrically.

Unlike treatment methods that use living cells or enzymes, this device uses an electrochemical reaction to get rid of excess glucose.

“The drug-free mode of action is relevant because current pharmacological therapies can be limited by adverse effects, tolerability, adherence, cost, and unresolved long-term safety questions,” the researchers wrote in Science.

When activated, the catalyst converts glucose into gluconate, a substance that the body can process and eliminate through urine. This removes some glucose from the body's normal metabolic process.

The implant works with a glucose monitor that tracks glucose levels continuously. When readings increase beyond a certain limit, the sensor communicates with a smartphone or control unit, which wirelessly activates the implant. The system switches off when glucose levels return to normal.

“At the current stage of the technology, we’ve demonstrated through lab experiments glucose clearance in approximately five litres of liquid, comparable to the typical blood volume in an adult human,” Maity, a postdoctoral researcher at ETH, the Swiss Federal Institute of Technology, told The Telegraph.

Also read: High-Fibre Diet Outperforms Metformin In Blood Sugar Control And Weight Loss, Study Finds

Tested On Diabetic And Obese Mice

In mice with type 2 diabetes and obesity, the implant brought elevated blood glucose into the normal range within an hour of activation. Repeated treatment maintained glucose control for six weeks. The treated mice also showed reductions in body weight and triglyceride levels, without dropping the blood sugar excessively.

Fussenegger said the device operated at a low voltage, adding, “Our experiments showed no evidence of tissue damage from either electrical or thermal effects.

Maity said, "These are proof-of-concept experiments in lab mice. We would need to refine the technology and make the device even smaller before human trials."

José M. Ordovás, a senior scientist at Tufts University who was not involved in the research, described the work as an “ingenious and well-developed piece of work as a proof of concept.”

He also said that the small animal study cannot capture the complexity of diabetes and obesity in humans. Long-term safety and the effects of gluconate processing, especially in people with poor kidney function, need more research.

What Happens Next?

The researchers have not tested the implant in humans yet. So its safety, effectiveness and durability in people still remain unknown. The kidneys' ability to eliminate gluconate will also be an important factor in future research.

Maity said that future research will focus on making the implant smaller and integrating it with an electrical power source like a wireless charging system and a glucose device that monitors blood sugar levels continuously.