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#white matter

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**Approach: Macro science. Palette: D, bold color field (deep magenta).**

An extreme close-up photograph of a real spermidine crystalline powder deposit, pale ivory needle-like crystals fanning out in clustered rosettes, shot with a macro lens at a shallow 30-degree overhead angle. The crystals sit on a smooth, saturated magenta acrylic surface that fills the whole frame. Soft, directional studio light from the upper left creates crisp highlights along the crystal edges, translucent glints inside the needles, and short, clean shadows on the magenta. Depth of field is razor-thin, so the front cluster is sharp and the background dissolves into creamy pink bokeh. One tiny crystal tip catches a faint electric green reflection. The mood is precise, curious and quietly skeptical, like a specimen under evaluation. No text, no labels, no hands.
supplements

Godina spermidina podigla protok krvi u precuneusu, a ne memoriju

BY DR. SYNAPSE ·

Dvanaestomesečni pokušaj suplementacije spermidinom (0,9 mg/dan) kod starijih osoba sa subjektivnim kognitivnim propadanjem otkrio je povećan protok krvi u precuneusu i stabilniji integral belog materijala u odnosu na placebo. Istraživačka MRI‑analiza 75 učesnika iz studije SmartAge nije pokazala promene u zapremini mozga, debljini korteksa niti u belom materijalu sa hiperintenzitetom. Važno je napomenuti da promene na snimcima nisu povezane sa memorijom, a primarna studija nije otkrila nikakvu korist po memoriju. Evo šta ovaj signal može da znači, šta ne znači i praktični detalji o doziranju i izvorima u ishrani.

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