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Minggu, 31 Mei 2026

Dilaporkan oleh AI

Sebuah studi baru menunjukkan bahwa merpati pos mengandalkan sel kekebalan yang kaya zat besi di hati mereka untuk mendeteksi medan magnet Bumi. Penemuan ini menawarkan penjelasan baru mengenai bagaimana burung bernavigasi dalam jarak jauh, terutama saat cuaca buruk.

Para peneliti di lembaga-lembaga termasuk University of Bonn dan Max Planck Institute of Animal Behavior menemukan bahwa makrofag di dalam hati mengakumulasi zat besi dan menunjukkan sifat magnetik yang kuat. Sel-sel ini terletak di dekat serabut saraf, yang menunjukkan adanya jalur bagi sinyal magnetik untuk mencapai otak.

Intestinal cells signal brain to curb hunger during parasitic infections

Rabu, 25 Maret 2026 Dilaporkan oleh AI Gambar dihasilkan oleh AI

A team led by David Julius, the 2021 Nobel Prize winner in Medicine, has described the molecular mechanism by which intestinal tuft cells signal the brain to suppress appetite during parasitic infections. Published today in Nature, the study identifies communication via acetylcholine and serotonin that activates the vagus nerve. The finding could aid treatments for conditions like irritable bowel syndrome.

UCLA scientists reverse liver damage in mice by removing zombie cells

Researchers at UCLA have identified senescent immune cells, dubbed 'zombie' cells, that accumulate in aging livers and contribute to fatty liver disease. By eliminating these cells in mice, the team reversed liver damage and reduced body weight, even on an unhealthy diet. The findings, published in Nature Aging, suggest similar mechanisms may drive human liver conditions.

Study links loss of MHC class I on tumors to CD4+ T cell-driven ferroptosis

Kamis, 04 Juni 2026 Dilaporkan oleh AI Fakta terverifikasi

Cancer cells that reduce MHC class I—a common way to evade CD8+ “killer” T cells—may become more vulnerable to destruction by CD4+ “helper” T cells through ferroptosis, according to research led by Baylor College of Medicine and collaborators at the University of Michigan and published in Nature Immunology.

Kesehatan

Mouse study suggests restoring a youthful gut microbiome may curb age-related liver damage and cancer risk

Kesehatan

UCSF study links iron-associated protein FTL1 to age-related memory decline in mice

Eropa

New study shows moonlight controls red-necked nightjar's behavior

Scientists map organized smell receptors in mouse noses

Researchers at Harvard Medical School have uncovered a hidden map of smell receptors in mice noses, revealing neat stripes instead of random distribution. This structure aligns with brain mapping, challenging prior assumptions about olfaction. The findings, published April 28 in Cell, could aid treatments for smell loss.

South Korean researchers claim magnetic gene switch breakthrough amid skepticism

Kamis, 30 April 2026 Dilaporkan oleh AI

Researchers at Dongguk University in Seoul have developed a magnetically controlled switch for turning on genes inside cells, as detailed in a recent Cell paper. The technique uses a specific electromagnetic signal to activate genes in mice and human cells. Critics, however, question the plausibility of the results and point to potential flaws in the study.

28 Mei 2026 13.50

Scientists discover gut-brain circuit triggering protein cravings

27 Mei 2026 09.03

Study links human blood cells to 700-million-year-old ancestors

25 Mei 2026 18.52

McGill researchers use reversible drug approach to boost natural killer cells against hard-to-treat cancers

23 Mei 2026 12.20

AI tool maps obesity-linked changes in facial sensory nerves across whole mouse bodies

22 April 2026 22.16

Lund researchers track nightingale's Sahara crossing

01 April 2026 14.39

Scientists discover internal winds in cells linked to cancer spread

22 Maret 2026 20.20

Researchers model mosquito flight toward humans using visual and CO2 cues

19 Maret 2026 17.45

Scientists identify a rocket-fuel-like reaction that propels spinning iron crystals inside malaria parasites

16 Maret 2026 15.21