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#ergothioneine

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Approach: macro science. Palette: warm (amber and copper).

Extreme close-up of a freshly sliced king oyster mushroom stem and gill edge, shot at a slight 30-degree overhead angle with a macro lens and shallow depth of field. The pale cream flesh shows individual fibrous hyphae and glistening moisture beads. Warm low-angle golden light rakes across from the left, turning the gill ridges into amber and copper lines with deep honey-brown shadows. A single tiny droplet on the cut surface catches a pinpoint of electric green reflection, as if lit from a hidden source. Background melts into out-of-focus burnished orange and chocolate tones. The mood is quiet, intimate and investigative, with real organic texture and no text.
longevity

Gljiva „vitamin dugovječnosti“ podiže NAD+ kod starijih štakava putem H₂S‑prekidača

BY HELIX WARD ·

Ergothioneine, gljivični spoj popularno nazvan „vitamin dugovječnosti“, dobio je mehanizam koji opravdava tu reputaciju. U studiji objavljenoj u *Cell Metabolism* starim štakavcima koji su primali ET omogućeno je duže trčanje na traci, povećala se vaskularizacija i mišićna masa te su zabilježeni viši nivoi mišićnog NAD+. Učinak je povezan s putanjom vodikovog sulfida – CSE, persulfidacijom i enzimom cGPDH. Kada se CSE ili cGPDH onemoguće, učinak nestaje. Radi se o eksperimentima na životinjama i u laboratoriju, a doziranje za štakave prevodi se otprilike na deset puta veću dozu od one koju tipični suplementi daju ljudima.

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