If humans or animals eat something that causes them to feel unwell, they subsequently avoid this food source. Until now, it has been unclear precisely how this avoidance learning takes place. A new study shows that communication between the brain cells and fat cells could play a crucial role here. The participants from the Universities of Bonn and Tohoku (Japan) and University Hospital Bonn have revealed the previously unknown mechanism in the fruit fly Drosophila. It may also exist in a similar form in mammals and even in humans. The results have now been published in the journal Neuron. 

BUFFALO, NY — April 16, 2026 — A new case report was published in Volume 13 of Oncoscience on March 11, 2026, titled “Erosive pustular dermatosis–like scalp reaction following cranial radiotherapy in a patient with EGFR-mutant NSCLC treated with amivantamab.”

As cataract surgery evolves toward a precision refractive paradigm, the accuracy of postoperative refractive prediction for intraocular lenses (IOLs) has become a core metric for surgical success. Axial Length (AL) measurement precision is the primary factor determining IOL power prediction error (PE). However, traditional optical biometers often employ a calculation model based on a single average refractive index for the entire eye. This "one-size-fits-all" estimation method frequently introduces systemic biases when dealing with anatomically complex eyes, such as those with extreme axial lengths.  A clinical study recently published in Eye Discovery (2026), titled "Accuracy of intraocular lens formulas using a sum-of-segments axial length biometer in an Asian population," addresses this gap. Conducted by the ophthalmology team at Tan Tock Seng Hospital in Singapore, the research provides a systematic evaluation of the novel Argos biometer within an Asian cohort.

Fish living downstream of wastewater treatment plants are accumulating antidepressants, opioids and other drugs of abuse in their bodies, according to a new study.

Using a new analytical method they developed, a team of researchers from the University of Waterloo discovered that several substances that affect the central nervous system, including fentanyl, methadone and venlafaxine, were detected in small fish living in rivers that receive urban wastewater.

An ultraviolet–to–near-infrared imager inspired by mantis shrimp vision could enable assessment of lymph nodes during cancer surgery.