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4 articles
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.
Approach: conceptual metaphor. Palette: bold color field. A single steel bathroom-style analog tape measure, pulled taut and wrapped around a ripe, glossy yellow-orange pear lying on its side, with the tape's tip locked at the same unmarked point, suggesting a waistline that did not shrink. The pear sits on a saturated magenta seamless backdrop, shot from a low three-quarter angle with a shallow depth of field, the stem sharp and the background softly blurred. Hard but slightly diffused studio key light from upper left casts a crisp, short shadow in deeper magenta on the surface. A tiny electric green sticky dot marks the tape's end, with no numbers or writing visible. Mood: playful, skeptical, deadpan, scientific restraint rather than hype.
longevity

Tjedni rapamicin tijekom godine: siguran, ali je li smanjio visceralnu mast?

BY REX MERIDIAN ·

Zanima li vas može li tjedni rapamicin smanjiti visceralnu mast i poboljšati zdravlje? Studija PEARL donosi iznenađujuće odgovore. Nakon 48 tjedana primijenjenog liječenja na zdravim osobama, primarni ishod – visceralna mast – nije pokazao promjenu, iako je profil sigurnosti bio sličan placebo grupi. Neki sekundarni pokazatelji, poput povećanja mišićne mase i smanjenja boli kod žena na 10 mg te boljeg osjećaja dobrobiti na 5 mg, upućuju na moguće koristi. Međutim, ti podaci su podskupinski i samoprijavljeni, lijek je bio pripremljen po mjeri, a nitko još nije dokazao da produljuje ljudski životni vijek. Evo što studija zaista pokazuje, a što ne.
A wide landscape editorial photograph of a minimalist laboratory-meets-wellness still life on a pale, warm-gray stone countertop, softly lit by diffused morning window light from the left. In the center foreground, a small amber glass supplement jar with a plain matte white label sits beside a scattering of fine white powder and a few loose white capsules on a ceramic dish. Next to it rests a clean, open notebook with faint hand-drawn line graphs, two diverging curves rising gently, one slightly higher than the other, drawn in muted sage-green and charcoal ink. A slim brass pen lies across the page. In the soft-focus midground, a delicate glass beaker filled with clear liquid catches a thin streak of light, casting a gentle caustic shimmer across the stone. A sprig of dried eucalyptus and a small sliver of citrus peel add organic texture. Behind them, an out-of-focus wall of pale oat-colored tiles and a floating wooden shelf holds a few blurred ceramic vessels and a small potted fern. The color palette is calm and editorial: warm creams, sage green, soft amber, muted terracotta accents, and touches of charcoal. Shallow depth of field with a crisp focus on the jar and notebook, creamy bokeh in the background. Subtle film-like grain, natural shadows, and generous negative space on the right third of the frame, suitable for headline overlay. The mood is thoughtful, measured, and trustworthy, like a contemporary science and wellness journal cover: modern, tactile, quietly optimistic, and grounded rather than hyped.
longevity

Kalcijev alfa‑ketoglutarat produžio životni vijek ženskih miševa do 16,6 %: Što to znači (i ne znači) za ljude

BY DR. SYNAPSE ·

Studija iz 2020. u časopisu *Cell Metabolism* otkrila je da je prehrana sredovječnim miševima s 2 % kalcijevog alfa‑ketoglutarata produljila medijan životnog vijeka ženki za čak 16,6 % i smanjila slabost. Efekt je bio manji u drugoj grupi (10,5 %), a dobiti kod mužjaka nisu bile statistički značajne. Istraživači povezuju korist s nižom sistemskom upalom i mogućim porastom IL‑10, ali radi se isključivo o rezultatima na miševima. Ovo ne dokazuje da AKG produžuje ljudski životni vijek. Članak objašnjava što podaci zapravo pokazuju, kako se razlikuju od marketinških tvrdnji i zašto CaAKG treba smatrati istraživačkim kandidatom, a ne provjerenim protokolom.
A serene editorial still life shot from a slightly elevated angle on a pale travertine surface, bathed in soft morning window light with gentle long shadows. At the center sits a small matte ceramic bowl in warm oatmeal tone, holding a fine mound of white crystalline powder, with a delicate wooden scoop resting beside it. A few grains are scattered naturally across the stone. To the left, a clear glass of water catches the light, throwing a subtle caustic shimmer onto the surface. To the right, a neatly arranged trio of translucent amber glass capsules and a single sprig of dried eucalyptus add organic texture. In the softly blurred background, a sage-green linen cloth drapes across the frame, and a vintage brass hourglass stands upright, its sand halfway through. This is a subtle nod to aging and time. A small open notebook with faint, abstract hand-drawn line graphs trending gently downward, with no legible text, rests at the edge of the composition, with a slim pencil placed across it. The palette is calm and modern: creamy ivory, warm sand, muted sage, soft terracotta, and touches of honey amber. The mood is quiet, thoughtful, and scientific without being clinical, like a contemporary wellness and science magazine cover. Shallow depth of field keeps the powder bowl crisp, with creamy bokeh behind it. Generous negative space on the right side of the wide 16:9 frame leaves room for headline overlay. Fine film-like grain, natural color grading, and minimalist composition give it a refined, trendy journal feel.
longevity

Taurin, jeftina aminokiselina koja je produžila životni vijek miševa za do 12 % i opada s godinama kod ljudi

BY DR. SYNAPSE ·

Studija iz 2023. g. objavljena u *Science* otkrila je da se razina cirkulirajućeg taurina, jeftine i lako dostupne aminokiseline, s godinama smanjuje kod miševa, majmuna i ljudi. Suplementacija taurina srednjim životinjama produljila je medijan životnog vijeka za otprilike 10‑12 % i poboljšala opće zdravstveno stanje. Spoj izgleda da usporava starenje stanica, oštećenja DNA, disfunkciju mitohondrija i kroničnu nisku upalu. Ljudski podaci još su samo promatranja, a doze korištene na miševima iznosile bi nekoliko grama dnevno kod ljudi, pa je daleko od konačnog dokaza. Ispod je sažetak istraživanja, rasprava o dozama i zašto stručnjaci traže klinička ispitivanja prije nego što se tvrdi da je taurin „pilula protiv starenja”.

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