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Colon cancer breakthrough keeps patients cancer-free for nearly 3 years

1 week 5 days ago
A short burst of immunotherapy before surgery is delivering surprisingly powerful results for a specific type of colorectal cancer. Patients in a UK-led trial who received just nine weeks of pembrolizumab prior to surgery have remained cancer-free nearly three years later—an outcome that challenges the standard approach of surgery followed by months of chemotherapy.

Common knee surgery found ineffective, may make things worse

1 week 5 days ago
A major 10-year clinical trial is turning one of the world’s most common knee surgeries on its head. Researchers found that trimming a damaged meniscus—a procedure long believed to relieve pain—offers no real benefit over placebo surgery. Even more surprising, patients who had the operation actually fared worse over time, with more symptoms, poorer function, faster progression of osteoarthritis, and a greater likelihood of needing additional surgery.

This common sleep habit could double your risk of heart attack

1 week 5 days ago
A chaotic sleep schedule in your 40s might be quietly setting the stage for heart trouble later. Researchers tracking thousands of people for over a decade found that those with highly inconsistent bedtimes—especially when they slept less than eight hours—faced about double the risk of serious cardiovascular events like heart attacks or strokes. Interestingly, it wasn’t when people woke up that mattered most, but how erratic their bedtime was.

Breakthrough biomaterial heals tissue from the inside out

1 week 6 days ago
Scientists have developed a breakthrough injectable biomaterial that travels through the bloodstream to repair damaged tissue from within, reducing inflammation and jumpstarting healing. In animal studies, it successfully treated heart attack damage and even showed promise for conditions like traumatic brain injury and pulmonary hypertension. Unlike earlier approaches that required direct injection into the heart, this new therapy can be delivered intravenously, allowing it to spread evenly and act quickly.

The dark side of weight loss drugs: Ozempic's surprising hidden cost

1 week 6 days ago
GLP-1 weight-loss drugs like Ozempic and Wegovy are often celebrated as game-changing solutions—but new research reveals a surprising social twist. People who lose weight using these medications may actually face more judgment than those who lose weight through diet and exercise—or even those who don’t lose weight at all. The stigma seems rooted in a perception that these drugs are an “easy way out,” creating a double bind where individuals are judged both for their weight and for how they choose to manage it.

Cell- and state-specific plasticity of striatal glutamatergic synapses is critical to the expression of levodopa-induced dyskinesia

1 week 6 days ago
Levodopa-induced dyskinesia (LID) is a debilitating complication of symptomatic therapy in Parkinson's disease. Although there is compelling evidence that striatal pathophysiology is a major driver of LID, the specific circuit mechanisms governing its expression remain obscure. To address this gap, molecular, cellular, and behavioral strategies were used to interrogate circuits in a mouse model of LID. These studies revealed that LID induction led to an upregulation of GluN2B-containing...
Weixing Shen

Microplastics as an emerging environmental pollutant potentially leading to neurodegenerative diseases

1 week 6 days ago
Microplastics (MPs), defined as plastic fragments less than 5 mm in diameter, are ubiquitous in the environment. As an emerging environmental pollutant, MPs can infiltrate the human body through multiple pathways, including inhalation, ingestion, dermal contact and bloodborne transmission.Correspondingly, MPs, which can penetrate the blood-brain barrier and enter the central nervous system (CNS), have been linked to the development of neurodegenerative diseases (NDs).In this review, we provide a...
Meilin Chen

A rule-based simulation model illuminates the role of asymmetric mitochondrial fission on beta-cell health

1 week 6 days ago
Mitochondrial dynamics play a critical role in the development of aging-related diseases such as type 2 diabetes mellitus. To investigate how mitochondrial dynamics influence cellular behavior in pancreatic beta-cells, we developed a rule-based, multi-level simulation model of insulin secretion. The pancreatic beta-cell model encompasses metabolic pathways (glycolysis and oxidative phosphorylation), compartmental processes (mitochondrial fusion and fission), and cellular processes (insulin...
Philipp Henning