#brain aging

2 articles

Approach: conceptual metaphor, with a natural palette.

A single walnut is cracked open on a rough wooden board, and its two halves sit slightly apart. The halves are shot in tight macro from a low three-quarter angle. The walnut's brain-like folds are the focus. Between the halves, a thin cluster of fine, dark brown tannin-stained fibers stretches like a bridge. Beside it sits a small pile of shell fragments with a few strands of green walnut husk. A small, sharp, electric green (#00e676) leaf catches the light at the edge of the frame. The background is a softly blurred window-lit kitchen garden in leafy greens and warm earth tones. Soft natural daylight comes from the left and gives gentle shadows and visible texture on the nut's ridges. The mood is calm, curious and quietly scientific, with a fresh morning feel and no blue cast.

Urolitin A: Crijevni proizvod od oraha povezan s debljinom korteksa

BY NOVA CHEN · 3. stu 2026.

Jedite lješnjak i vaše crijevne bakterije pretvaraju njegove elagitatnine u urolitine, spojeve koji bi mogli biti povezani s načinom na koji vaš mozak stari. U dvogodišnjoj MRI podstudiji WAHA ispitivanja, veći porasti u urolitinu A, urolitinu C i urolitinu C‑glukuronidu bili su povezani s očuvanjem debljine korteksa kod konzumatora oraha, uglavnom u regijama desne hemisfere. Efekt je bio izraženiji kod ljudi s metabtipom B crijevne mikroflore. Ipak, ovo je samo asocijacija unutar randomiziranog ispitivanja, a ne dokaz uzročne veze, te ne govori ništa konkretno o suplementima urolitina A.

Approach: Macro science, with a Bold color field palette.

Extreme close-up microscopy-style image of a single microglial cell with fine, branching processes, rendered with the real texture of fluorescence-stained tissue: translucent, slightly granular cell body, delicate ramified arms reaching across the frame. Shot from straight overhead through a microscope objective with shallow depth of field, so the outer branches soften into blur. The cell is a luminous, warm ivory-white with a few small electric green (#00e676) points of light along its branches. Behind it is a saturated, even magenta backdrop with subtle tissue grain. Lighting is crisp and backlit, with gentle glow around the edges and no harsh shadows. The mood is curious and precise, with a quiet sense of renewal. No text or labels.

longevity

Studija na miševima: NR pomakao starije moždane stanice prema mlađem profilu

BY NOVA CHEN · 31. lis 2026.

U novoj studiji objavljenoj u *GeroScience*, 22‑mjesečni miševi kojima je osam tjedana davano nikotinamid ribozid (NR) pokazali su bolje rezultate na testovima pamćenja i izgradnje gnijezda. Njihove imunološke stanice u mozgu također su nalikale onima kod mladih životinja. Ovo je eksperiment na miševima i ne dokazuje slične koristi kod ljudi – doza od 400 mg/kg znatno premašuje ono što se uzima u kliničkim ispitivanjima, a rad obuhvaća isključivo mužjake.