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New study uncovers how prior obesity impacts viral consequences

A study comparing the effects of SARS-CoV-2 infection in lean and obese primates found different long-term consequences of the virus depending on prior obesity and metabolic disease. The results, which also highlighted how widespread long COVID symptoms are in animals, were published July 24th in the open-access journal PLOS Pathogens by Charles Roberts of Oregon Health & Science University, USA, and colleagues.

25 Jul 2025

In-depth look at breast tumor growth and surgical delay effects

Using a novel method to analyze tumor growth rates, researchers at Fox Chase Cancer Center have provided the most in-depth assessment to date of how fast breast cancers grow in patients and how surgical delays may affect breast cancer staging, which measures the extent of cancer spread in the body. The newly published study offers new insight into how tumors progress in the time between diagnosis and surgery.

25 Jul 2025

New research shows neurogenesis slows in early adulthood, impacting memory

Age often brings a gradual decline in the ability to learn new things and retain memories. This phenomenon, often associated with the elderly, is linked to the brain's deteriorating capacity to generate new neurons-a process that primarily occurs in the hippocampus -as neural stem cells (NSCs) divide and mature. Recent research suggests this decline begins much earlier in life than previously thought, potentially starting in early adulthood.

25 Jul 2025

Gene-edited mosquitoes slash malaria spread 93% using self-propagating shield

Scientists engineered a naturally occurring genetic variant (Q224) in Anopheles stephensi mosquitoes, making them highly resistant to malaria parasites without affecting fitness. A novel gene-drive system rapidly spread this protective trait through lab mosquito populations, offering a potential breakthrough for malaria control.

24 Jul 2025

Hemp seeds: The surprisingly complete protein hiding in plain sight

Researchers reviewed the nutritional and functional potential of industrial hemp seeds, highlighting their complete protein, healthy fat, and fiber content. The review outlines how processing innovations and market forces could make hemp a leading ingredient in plant-based and functional foods.

24 Jul 2025

Scientists open new atlas of genetic diversity with advanced sequencing

A global team mapped over 100,000 structural variants in human genomes by applying Oxford Nanopore long-read sequencing and a novel graph-based analytical approach to samples from 26 populations. The study reveals the extraordinary complexity and diversity of human DNA, providing an open-access atlas that will accelerate discoveries in genetic disease and human evolution.

24 Jul 2025

KFF Health News' 'What the Health?': Here come the ACA premium hikes

Much of the hubbub in health care this year has been focused on Medicaid, which faces dramatically reduced federal funding as the result of the huge budget bill signed by President Donald Trump earlier this month.

24 Jul 2025

AI-designed proteins bring personalized cancer treatment within reach

Precision cancer treatment on a larger scale is moving closer after researchers have developed an AI platform that can tailor protein components and arm the patient's immune cells to fight cancer.

24 Jul 2025

Commonly used type 2 diabetes medication linked to higher rate of heart-related conditions

New research from investigators at Mass General Brigham suggests that a commonly used type 2 diabetes medication is linked to a higher rate of heart-related conditions compared to medications that hit other targets.

24 Jul 2025

Blocking nutrient scavenging weakens pancreatic tumor defenses

Cancer cells and tumors do not exist in a vacuum. Far from the isolation and self-sufficiency of the fictional Wakanda, tumors develop in and alter the nearby milieu of immune cells, connective tissue, blood vessels and a sea of proteins and carbohydrates that provide structure and other supportive functions.

24 Jul 2025

Salk researcher awarded funding to boost immunotherapy for pancreatic cancer

Salk Institute Professor Diana Hargreaves was named a 2025 All-Star Translational Award Program grantee by the V Foundation for Cancer Research.

24 Jul 2025

Older adults with serious illness face greater burdens after elective surgery

Older adults who have serious illness before undergoing elective surgery had hospital stays twice as long as similarly aged counterparts; were twice as likely to return to the hospital or the emergency department; and had almost double the yearly costs of health care, according to a study published in the Journal of the American College of Surgeons.

24 Jul 2025

Mathematics offers new clues in the fight against Alzheimer's

Mathematics may not be the first thing people associate with Alzheimer's disease research. But for Pedro Maia, an assistant professor of mathematics and data science at The University of Texas at Arlington, analyzing how different parts of the brain interact like a network is revealing new insights into one of the world's most devastating brain disorders.

24 Jul 2025

IRF-5 identified as key to preventing immune cell exhaustion

In fighting chronic infections or certain cancers, CD8+ T cells-the immune system's frontline soldiers-eventually become exhausted. They lose effectiveness and respond less efficiently to threats.

24 Jul 2025

Expanding mastectomy access could prevent more breast cancer cases

More women at higher risk of breast cancer should be offered a mastectomy, according to a new study led by researchers at the London School of Hygiene & Tropical Medicine (LSHTM) and Queen Mary, University of London.

24 Jul 2025

Standard DNA tests miss most cases of NUT carcinoma

The diagnosis of a suspected lung, head, and neck cancer called NUT carcinoma should include additional testing capable of detecting gene fusions that are definitive markers of the disease, according to a study by Dana-Farber Cancer Institute investigators.

24 Jul 2025

Study finds benefits of personalized ventilation in ICU care

A seven-year international, multi-centre clinical trial led by London Health Sciences Centre Research Institute (LHSCRI) and St. Michael's Hospital, a site of Unity Health Toronto, has found that a new ventilation mode called proportional assist ventilation (PAV+™) could improve outcomes for patients in the intensive care unit (ICU) who require help breathing.

24 Jul 2025

Bias found in AI models diagnosing skin diseases across demographics

An international research team led by Assistant Professor Zhiyu Wan from ShanghaiTech University has recently published groundbreaking findings in the journal Health Data Science, highlighting biases in multimodal large language models (LLMs) such as ChatGPT-4 and LLaVA in diagnosing skin diseases from medical images.

24 Jul 2025

Billing codes in big data often misidentify diagnoses

Use of billing codes in big data sets to find diagnoses can result in up to two-thirds of cases being mistakenly identified, new UCLA-led research finds.

24 Jul 2025

Low-dose olanzapine reduces chemo-induced nausea with fewer side effects

Chemotherapy-induced nausea and vomiting are among the most distressing side effects of anti-cancer treatment, particularly for those receiving highly emetogenic regimens such as anthracycline plus cyclophosphamide combinations.

24 Jul 2025