#dna-methylation

1 article

Approach: conceptual metaphor. Palette: bold color field.

A single vintage brass pocket watch, open, with its movement visible, sits at the center of a saturated mustard-yellow seamless backdrop. The balance wheel and gears are in sharp focus. A single plain, unmarked oval multivitamin tablet is wedged between two gear teeth, as if gently slowing the mechanism. A tiny, crisp electric-green glass bead rests on the rim of the watch case as the only accent. Camera: shot from slightly above at about 35 degrees, with a macro lens and shallow depth of field, so the gears behind the tablet melt into soft golden blur. Lighting: a large softbox from the upper left, with crisp highlights on the brass and a soft, short shadow falling to the right on the yellow surface. Mood: curious, optimistic and precise, suggesting a modest, measurable slowing of time and not a miracle cure.

每日服用复合维生素可减缓COSMOS试验中的表观遗传老化时钟

BY DR. SYNAPSE · 2026年10月19日

一项为期两年的随机试验在 958 名老年人中发现，每日服用 Centrum Silver 复合维生素可使两种表观遗传老化时钟的加速速度比安慰剂略慢——PCGrimAge 每年慢约 0.11 年，PCPhenoAge 每年慢约 0.21 年。对老化速度本身较快的亚组，PCGrimAge 的减缓效果更明显，达到每年约 0.24 年。每日 500 mg 的可可黄酮提取物对五种时钟均未出现任何影响。鉴于效应规模甚小且临床意义尚未明确，这一发现更像是令人鼓舞的线索，而非决定性的结论。