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Pernicious anemia
Pernicious anemia refers to a type of autoimmune anemia. Antibodies are directed against intrinsic factor or parietal cells which produce intrinsic factor. Intrinsic factor is required for vitamin B12 absorption, so impaired absorption of vitamin B12 can result. An anemia is a deficiency of the blood cells, but in addition to blood cells, many other cells in the body need vitamin B12, including nerve cells.
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Health & Medicine News
October 19, 2025
Oct. 19, 2025 — Researchers from NTNU and EPFL have unveiled a compact, low-cost laser that outperforms current models in speed, control, and precision. Built using microchip technology, it can be mass-produced for use in everything from Lidar navigation to gas ...
Oct. 19, 2025 — SuperAgers defy normal aging by keeping sharp memories and healthy brains well into their 80s. Northwestern scientists discovered that these individuals either resist the buildup of harmful brain ...
Oct. 19, 2025 — Scientists have found a new way to stop cancer growth without damaging healthy cells. Researchers from the Francis Crick Institute and Vividion Therapeutics discovered a compound that blocks the ...
Oct. 19, 2025 — Researchers found that triple-negative breast cancer cells are “addicted” to lipids, a feature tied to obesity. By studying mice, they discovered that high lipid levels alone accelerate tumor growth. Lowering these fats slowed cancer ...
Oct. 19, 2025 — Both regular and “diet” soft drinks may be far worse for liver health than believed. A massive study of over 120,000 participants found that consuming more than one can a day of either sugar-sweetened or low/no-sugar beverages sharply increased ...
Oct. 18, 2025 — Weight-loss surgery dramatically outperformed GLP-1 medications in improving longevity and reducing heart, kidney, and eye complications for people with obesity and diabetes. Over 10 years, patients lost far more weight and required fewer ...
Oct. 18, 2025 — A long-term Australian study found that calcium supplements do not raise dementia risk in older women, countering previous fears. The research followed more than 1,400 participants for nearly 15 years and revealed no harmful cognitive effects. ...
Oct. 18, 2025 — EMBL researchers created SDR-seq, a next-generation tool that decodes both DNA and RNA from the same cell. It finally opens access to non-coding regions, where most disease-associated genetic variants lie. By revealing how these variants affect gene ...
Oct. 18, 2025 — Semaglutide, tirzepatide, and other GLP-1 drugs appear to slow alcohol absorption and blunt its intoxicating effects, according to new research. The study found participants on these medications felt less drunk despite consuming the same amount of ...
Oct. 17, 2025 — Salk Institute scientists discovered that bile acids in the liver can weaken immune cell function, making immunotherapy less effective against liver cancer. They pinpointed specific bile acids that suppress T cells and found that supplementing with ...
Oct. 16, 2025 — Scientists have found a way to transform hard-to-treat tumors into targets for the immune system. Using two protein stimulators, they activated strong T-cell and B-cell responses and built immune structures inside tumors that improved survival and ...
Oct. 16, 2025 — Long before humans built cities or wrote words, our ancestors may have faced a hidden threat that shaped who we became. Scientists studying ancient teeth found that early humans, great apes, and even Neanderthals were exposed to lead millions of ...
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Oct. 18, 2025 — Stanford scientists have solved a long-standing challenge in growing brain organoids by using a simple food additive to keep them from sticking ...
Oct. 16, 2025 — Researchers discovered a new field of ancient tektites in South Australia, revealing a long-forgotten asteroid impact. These 11-million-year-old glass fragments differ chemically and geographically ...
Oct. 16, 2025 — Johns Hopkins scientists uncovered microscopic “nanotube” channels that neurons use to transfer toxic molecules. While this process clears waste, it can also spread harmful proteins like ...
Oct. 15, 2025 — Scientists discovered that lean pork builds muscle more effectively post-workout than high-fat pork, even with identical protein levels. Using advanced tracking techniques, they found that fat ...
Oct. 15, 2025 — Korean researchers found that low-dose radiation therapy eased knee pain and improved movement in people with mild to moderate osteoarthritis. The treatment, far weaker than cancer radiation, showed ...
Oct. 15, 2025 — Scientists discovered that specific nutrients in nematodes' diets activate stress defenses that keep their cells healthier over time. These RNAs prevent toxic protein buildup, promoting longevity and ...
Oct. 15, 2025 — A new human liver organoid microarray developed by Cincinnati Children’s and Roche recreates immune-driven liver injury in the lab. Built from patient-derived stem cells and immune cells, it ...
Oct. 14, 2025 — Endurance exercise may train the immune system as much as the muscles. Older adults with decades of running or cycling had immune cells that functioned better and aged more slowly. Their inflammation ...
Oct. 14, 2025 — Researchers have synthesized enhanced vitamin K analogues that outperform natural vitamin K in promoting neuron growth. The new compounds, which combine vitamin K with retinoic acid, activate the ...
Oct. 14, 2025 — Researchers at USC have created the first method to noninvasively measure microscopic blood vessel pulses in the human brain. Using advanced 7T MRI, they found these tiny pulsations grow stronger ...