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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.
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According to NHS advice, people who use gabapentin may face rare emergencies linked to the medicine. Although it is not officially classed as a painkiller, doctors often prescribe it for nerve pain that follows an injury. It is also used for discomfort caused by shingles or diabetes. The medicine works by interrupting pain signals that move between the brain and spinal cord. Gabapentin is also a common treatment for epilepsy and falls under the group of anticonvulsant drugs. Most people take it as capsules, tablets, or a liquid, usually three times a day.
NHS information notes that the majority of users do not face any side effects. Those who do usually notice only mild and short-lived symptoms.
Gabapentin is a prescription drug that belongs to a group of medicines called anticonvulsants. Doctors usually give it to people who have nerve pain or to help manage certain types of seizures in epilepsy. It is sold under names like Neurontin, Gralise, and Horizant, along with widely used generic versions.
Gabapentin is prescribed for a few main purposes:
There are times when gabapentin may lead to serious reactions that need emergency attention. Mild effects can include an upset stomach, dry mouth, weight gain, or slight memory troubles.
More concerning reactions may involve thoughts of self-harm, unusual muscle pain or weakness, or seeing or hearing things that are not there. Even then, NHS guidance states that these usually require an urgent call to a doctor or 111 rather than ambulance help.
Like many medicines, gabapentin can trigger a severe allergic reaction known as anaphylaxis. This can cause several symptoms, such as swelling in the throat or difficulty breathing. The NHS advises calling 999 if you are taking gabapentin and experience any of the following:
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Prostate Cancer Screening: A panel of government health experts in the UK has advised that routine prostate cancer screening should not be made available to most men, a decision that has drawn disappointment from several charities and campaigners.
The UK National Screening Committee (UKNSC) instead recommends targeted screening for men who carry a confirmed BRCA1 or BRCA2 gene mutation. These gene variants are linked to a higher risk of aggressive prostate cancers at a younger age. Men in this high-risk group could undergo screening every two years between ages 45 and 61.
The committee concluded that offering prostate cancer screening to all men—or even those with a family history—would do more harm than good. While it might slightly reduce the number of deaths from prostate cancer, it could result in extensive overdiagnosis.
Screening for black men, who are known to have a higher risk of developing prostate cancer, was not recommended due to insufficient and uncertain evidence.
A major hurdle is the lack of strong evidence showing that mass prostate cancer screening significantly reduces deaths. The UK National Screening Committee (UKNSC) has determined that, at present, the potential harms of widespread testing outweigh the benefits, and therefore, a nationwide screening programme is not justified.
Health Secretary Wes Streeting said he would carefully review the draft recommendation, which will now undergo a 12-week consultation period before a final decision is presented to the government in March.
Prostate cancer remains the most common cancer among men, affecting one in eight, with around 55,300 new cases and 12,200 deaths each year in the UK. Despite being the second most common cancer overall after breast cancer, there is no routine screening program, partly because the PSA (prostate-specific antigen) test is not entirely reliable.
BRCA1 and BRCA2 are faulty genes that increase the risk of several cancers, including breast, pancreatic, ovarian, and prostate cancer. Around one in 300–400 people carries these mutations, and many are unaware of their status. Individuals with Jewish ancestry are at higher risk, with one in 40 Ashkenazi Jews and one in 140 Sephardi Jews carrying the faulty genes.
Men with a strong family history of cancer are encouraged to discuss blood or saliva testing with their GP. The proposed screening would likely only apply to a few thousand men due to the rarity of these gene mutations.
The UKNSC noted that screening black men or men with a family history of prostate cancer could result in significant overdiagnosis and overtreatment. Their modeling suggested that annual screening for black men aged 55–60 could lead to 44% of detected prostate cancers being overdiagnosed. Many of these cancers grow slowly and might never need treatment, but intervention could cause unnecessary anxiety and lifelong side effects, such as incontinence, erectile dysfunction, and bladder problems.
Six-time Olympic gold medallist Sir Chris Hoy has shared his “disappointment and sadness” after learning that the UKNSC has not recommended population-level prostate cancer screening. Despite this setback, Hoy remains committed to using his platform to advocate for earlier detection of the disease.
Since his own diagnosis, Hoy has actively campaigned for better screening measures to catch prostate cancer sooner. Today’s decision by the UKNSC, however, has temporarily delayed those efforts.
The committee’s decision has been met with mixed reactions. Cancer Research UK supported the cautious, evidence-based approach, noting that PSA testing can miss dangerous cancers and detect ones that do not require treatment. Prof Kamila Hawthorne, chair of the Royal College of GPs, also backed the committee’s decision, emphasizing that whole-population screening is not supported by current evidence.
However, charities like Prostate Cancer UK and Prostate Cancer Research, along with public figures including Stephen Fry and Prime Minister Rishi Sunak, expressed deep disappointment. They warned that excluding high-risk groups could lead to late diagnoses and preventable deaths.
Prostate Cancer Research criticized the exclusion of black men and those with family histories, calling it a “serious error” that could worsen health inequalities. Stephen Fry and Rishi Sunak both echoed disappointment, calling for broader screening. Former Prime Minister David Cameron also expressed concern, emphasizing the need for early detection to protect men and their families.
Health Secretary Wes Streeting reaffirmed that he wants evidence-backed screening and is committed to improving early detection and treatment for the most common cancers in men. He stated that progress is being made in reducing cancer waiting times, with 193,000 more patients diagnosed on time in the past year.
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A recent brain scan showed that Kim Kardashian had areas of “low activity” after learning she had a small brain aneurysm. The finding came during the November 27 episode of Hulu’s “The Kardashians,” where the 45-year-old “All’s Fair” actress met with Dr. Daniel Amen. He pointed out several “holes” on the scan, explaining that these patterns indicate the front part of her brain is not working as actively as expected.
Dr. Amen, a psychologist who focuses on brain health, noted that reduced activity in this region can be linked to long-term stress. He suggested that the pressure she has been under while preparing for the California bar exam in July 2025 may be contributing. He also cautioned that this could affect how she handles stress. “With your frontal lobes functioning this way, it becomes more difficult to manage pressure, and that is not ideal when you’re studying and getting ready for the boards,” he told Kardashian, who was accompanied by longtime family friend Scott Disick.
Kim Kardashian recently shared an update on her brain aneurysm after the October 23 episode of “The Kardashians” revealed the diagnosis. Speaking on “Good Morning America” on Oct. 28, she said she underwent several additional brain scans at Cedars-Sinai Medical Center. She reassured viewers that she is doing well and encouraged them to follow the story on the show, adding that “everything works out.”
In an earlier episode, Kardashian had suggested that the “little” aneurysm may have been linked to the stress she experienced during her divorce from Ye, formerly known as Kanye West.
A brain aneurysm forms when a weak spot in a blood vessel in the brain expands and fills with blood. If it bursts, it can lead to a subarachnoid hemorrhage, a dangerous type of bleeding around the brain that may result in stroke, long-term brain damage, or even death. Most unruptured aneurysms cause no clear symptoms, though some people may experience headaches, changes in vision, or pain, according to the Mayo Clinic.
Low brain activity can occur after an aneurysm for several reasons. If an aneurysm ruptures, the resulting bleeding can kill brain cells, raise pressure inside the skull, and interrupt the brain’s supply of oxygen-rich blood. Even without a rupture, the weakened vessel wall and the physical and emotional strain of the diagnosis can influence how the brain functions. The fatigue, stress, and lifestyle changes that often follow can also contribute to reduced activity, as noted by the National Institutes of Health.
How Does Chronic Stress Affect Brain Health?
Chronic stress places a heavy burden on the brain. Over time, consistently high cortisol levels can interfere with the way nerves communicate, especially in the hippocampus, the area responsible for learning and memory. This disruption can lead to forgetfulness, slower thinking, and difficulty concentrating. Prolonged stress is also linked with a higher risk of mood disorders and certain neurological problems later in life.
Neuroscientists note that simple daily habits can help protect the brain from these effects. Steady sleep routines, physical activity, and practices that calm the mind, such as breathing exercises or meditation, support healthier neural pathways and help the brain recover from ongoing stress.
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