|
|
News for Healthier Living
Scientists Discover Why High Levels of the Amino Acid Cysteine Are Toxic to Cells
 Cysteine is the only protein-building amino acid that is acutely toxic to human cells when present in excess. Cells avoid this toxicity by converting cysteine into glutathione. Scientists had long puzzled over why excess cysteine is dangerous, while a large amount of glutathione is safe. A new study shows that excess cysteine causes the release of iron, which accumulates inside mitochondria and ultimately triggers cell death. Glutathione gives the cell many of the same advantages as free cysteine, without unleashing unsafe levels of iron. Beyond clarifying fundamental mysteries underlying the basic biology of human cells, the findings may also have implications for cancers that take up large amounts of cysteine.
September 21, 2026
September 22 2026September 21 2026September 18 2026September 17 2026September 16 2026September 15 2026September 14 2026September 11 2026 - UNC Study Develops Data-Driven Tool to Help Oncologists Identify High-Risk Periods for Metastatic Breast Cancer Patients
- Researchers Discover Rare Cortical Neurons That Can Help Put the Brain to Sleep
- New Disease Found That Causes Night Blindness and Loss of Peripheral Vision
- Obesity May Remove a Natural Defense Against Breast Cancer
- New 'Smart' Nanoparticles Help the Immune System Better Attack Tumours
- Cancer Is Now The Leading Health Threat For 9/11 Survivors 25 Years On
- Nerve Stimulation Eases Diabetic Nerve Pain, Study Says
- Most Women Who Regularly Use Eyelash Extensions May Get Skin Mites
- JMIR News: Shadow AI, Vocal Biomarker Tech, Griefbots, and a Prescription Video Game
- Protein Clues in the Blood May Help Children Avoid Diseases Later in Life
- Cardiometabolic Risk Factors Can Be Identified in Kids as Young as 8
- 25 Years Later: Sept. 11 Pentagon Burn Survivors Reunite with Care Teams Who Helped Save Their Lives
- Probiotic Use Spikes In US, But No Improvement In Gut-Healthy Diet Habits
- Weight-Loss Surgery Might Boost Female Fertility
- What's Living On Baby's Skin Might Predict Childhood Eczema Risk
- First-of-its-Kind X-ray Imaging Tool for Studying Nuclear Materials
- Nonprofits Are Helping Musicians Pay For Insurance in Austin, Texas, And Beyond
- Chemotherapy Also Damages Healthy Cells In Children
- Remote Work Increases Sleep And Reduces Physical Activity--Sedentary Behaviour Can Increase By 45 Minutes
- Uma Scientists Develop A New Technology That Improves The Diagnosis Of Allergy To Antibiotics Such As Amoxicillin And Other Penicillins
- Researchers Uncover Mechanism Behind Dangerous Blood-Clotting Disorder
- 25 Years After 9/11, Study Finds Neighborhood Environment May Influence Frailty, PTSD, and Depression Risk Among World Trade Center Responders
- Cancer Research Heads to Space in Adelaide-Led Microgravity Mission
- Kazakhstan Researchers Strengthen National Defenses Against Diseases That Spread from Animals to Humans
September 10 2026September 9 2026 - How AI Is Changing Construction From Classroom to Job Site
- UTHealth Houston Team Reverses Nerve Pain in Diabetic Mice
- Keeping Elite Women's Basketball Players Healthy During International Competition
- New Interactive Map Helps States Navigate Wildfire-Energy Policy Activity
- 'Power Naps' May Improve Clinical Performance for Sleep-Deprived Anesthesiology Residents
- RNA Creates a Self-Destruct Switch for Cellular Machinery Linked to Leukemia
- New Tools Predict Which Tumors Will Respond to Treatment by Comparing Their Internal "Floor Plans"
- ASTRO to Showcase Advances in Radiation Medicine and Cancer Research in 2026 Annual Meeting Press Program
- Early MS treatments differ most in relapses and MRI lesions, not disability
- Cardiologists Expected This New Drug To Prevent Heart Attacks — So Why Did It Fail?
- Suicide-Related ER Visits In Children Rise, But Many Hospitals Lack Specialized Mental Health Care
- Semaglutide Linked To 40% Fewer Asthma Attacks
- Lied Center Celebrates Milestone in Expansion, Renovation
- Ribbon Cutting to Mark Mesonet Progress, Salute Stakeholders
- Virginia Tech Researchers Seek to Reduce Chronic Pain for Rural Adults
- Mayo Clinic Researchers Find a Way to Reprogram Immune Cells and Boost Chemotherapy Response in Glioblastoma
- A Road Paved by Research: A Johns Hopkins Medicine Patient's Experience with the Evolution of Sickle Cell Treatment
- Current Blood Pressure Thresholds May Miss Critically Injured Children
- Beyond the Prescription: How GLP-1 Companion Digital Programs Address Persistence to Medication and Postcessation Weight Regain
- Fake Doctor Reviews Look More Trustworthy Than Real Ones, Study Finds
- Psychedelics and Anesthetics Create Mirror Image Patterns in the Brain
- Pig Kidney Kept Man Alive For A Year While Awaiting A Human Organ Donation
- Students Hungry, Anxious, Distracted After End Of Universal Free School Meal Policy, Study Says
- The Market Forces Quietly Adding Thousands To Patient Bills
- Study Finds Social, Financial, and Healthcare Factors Shape Resilience in Adults with Sickle Cell Disease
- Gut, Airway and Tumor Microbes Emerge as Promising Predictors of Immunotherapy Response in Lung Cancer
- Spinal Cord Stimulation Eases Pain and Improves Sensation in People with Diabetic Nerve Damage
- Healthy lifestyle in middle age adds happiness alongside longevity to old age
- Vitamin A Metabolite Preserves T Cells' Function as KAIST Points to a New Strategy for Treating Intractable Brain Tumors
- Surgery-Centered Framework Reshapes Hepatocellular Carcinoma Care
- Alzheimer's: a Nasal Spray Protects Neurons and Memory
September 8 2026
|
|
|
|
|