Opioids and other drugs accumulating in freshwater fish
Peer-Reviewed Publication
Updates every hour. Last Updated: 1-Jun-2026 22:15 ET (2-Jun-2026 02:15 GMT/UTC)
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.
Gallbladder cancer (GBC) is a rare form of cancer with no signs or symptoms in the early stages. In the U.S., approximately 2,000 people die annually from this condition, with only 20% diagnosed at an early stage. Surgery remains the most effective treatment. Although minimally invasive approaches—laparoscopic and robotic are increasingly used in gastrointestinal oncology, their use in GBC is limited and comparing robotic surgery to laparoscopic and conventional surgery approaches remains limited and controversial.
In a new review in the journal Surgical Oncology Clinics, BU researchers show that minimally invasive surgery—especially robotic surgery—can be a safe way to treat selected patients with gallbladder cancer. In the studies reviewed, robotic approaches often had less blood loss, shorter hospital stays, and sometimes removed more lymph nodes, while long‑term cancer outcomes resembled those for open surgery in appropriately chosen patients.
Often diagnosed in the teenage years, childhood-onset lupus is a serious, potentially fatal autoimmune disease that causes the body to attack itself. For as many as 10,000 U.S. youths, mostly females and people who are Black, Latinx, Indigenous, Asian and from the Pacific Islands, it can bring extreme fatigue, mood changes, pain and inflammation that affect many parts of the body. A new cognitive behavioral therapy program known as TEACH is helping young lupus patients learn to take better care of themselves so they can feel better faster.
Eccentric training is widely used to prevent hamstring injuries, but the mechanisms behind their effectiveness remain unclear. Researchers found that nine weeks of eccentric training allowed hamstring muscle fibers to operate at longer lengths during exercise without overstretching their microscopic contractile units. These adaptations likely occur through the addition of sarcomeres in series and may help explain why this training method reduces hamstring injury risk.